JP2019108695A - Lid opening/closing device - Google Patents

Abstract

To improve the operability of a lid opening/closing device.SOLUTION: In a lid opening/closing device 10, an operation of an electric drive mechanism 30 causes a push rod 20 in a push-in position to transit between a locking posture and an unlocking posture. Then, the push rod 20 is moved between the push-in position and a protruding position by performing a push-in operation on the push rod 20 transited to the unlocking posture. That is, in the lid opening/closing device 10, the movement of the push rod 20 between the push-in position and the protruding position and the transition (rotation) between the locking posture and the unlocking posture are performed separately. Thus, for the push rod 20, a pushing load of the push rod 20 can be made lower than the configuration in which the movement between the push-in position and the protruding position and the transition between the locking posture and the unlocking posture are performed simultaneously. Then, the operability of the lid opening/closing device 10 can be improved.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lid opening / closing device.

  In the lid opening / closing device, the fuel lid may be opened and closed by a so-called push-push mechanism. The push-push mechanism holds the push rod in the push-in position by closing the fuel lid in the closing direction, closes the fuel lid, and pushes the fuel lid again to project the push rod to open the fuel lid. There is.

  In the lid opening / closing device described in Patent Document 1 below, when the push rod is moved in the axial direction, the push rod is configured to move in the axial direction while rotating. Thus, the locking portion of the push rod is engaged with the fuel lid.

JP, 2014-173422, A

  However, the lid opening / closing device has room for improvement in the following points. That is, in the lid opening / closing device, the rod cam portion for rotating the push rod and the follower cam portion for the push-push mechanism are provided in the case so as to be linked. Then, the slider of the push rod moves in the axial direction while sliding along the slope of the rod cam portion. For this reason, the operation resistance to the push rod is large, the pressing operation of the fuel lid may be heavy, and the operation feeling may be deteriorated.

  An object of the present invention is to provide a lid opening / closing device capable of improving operability in consideration of the above-mentioned facts.

  Mode 1: One or more embodiments of the present invention are disposed in a protruding position in which one side in the axial direction is the protruding direction and the other side in the axial direction is the pushing direction and moved from the pushing position in the protruding direction. The push rod is pushed between the closed position of the fuel lid to open it, and by rotating around the axis, the push rod transits between the locking posture for locking the fuel lid and the unlocking posture for releasing the locked state with the fuel lid. And a push-push mechanism for maintaining the push rod pushed in the push-in direction from the projection position in the push-in position and pushing the push rod in the projection direction by pushing the push rod again in the push-in direction The push rod is driven at the push-in position of the push rod to move the push rod to the lock posture and the unhook position. A drive mechanism for transitioning between the click position, a lid opening and closing device provided with a.

  Aspect 2: One or more embodiments of the present invention is the lid opening / closing device, wherein the push-push mechanism includes a spring that biases the push rod in a projecting direction.

  Mode 3: In one or more embodiments of the present invention, the drive mechanism includes a motor and a rotor that rotates about the axis of the push rod by the driving force of the motor, and the push rod is The lid opening / closing device is connected to the rotor such that relative movement is possible in the axial direction of the push rod and relative rotation about the axis of the push rod is not possible.

  Mode 4: In one or more embodiments of the present invention, the push-push mechanism has a cylindrical holder that holds the other axial end of the push rod so as to be relatively movable, and the holder is The lid opening / closing device may further include a blocking portion configured to block axial movement of the push rod in the locking posture of the push rod.

  Mode 5: In one or more embodiments of the present invention, the push-push mechanism includes a slider housed in the holder, coupled to the holder, and urged in a projecting direction by the spring. A cam follower, a slider provided between the push rod and the cam follower, and an inner circumferential portion of the holder, wherein the relative movement is possible in the axial direction of the holder and the relative rotation is not possible in the circumferential direction The slide is provided between a plurality of cam grooves into which a moving element is inserted and the cam grooves adjacent in the circumferential direction of the holder, and the cam follower which is separated from the cam groove in the pushing direction moves in the protruding direction A pair of inclined cam surfaces for rotating the cam follower to one side in the circumferential direction by the contact of the element, and a pair of the inclined cam surfaces provided between the inclined cam surfaces and the slider The first cam surface has a holding cam surface for holding the cam follower in the pressing position by being in contact with the slider, and the cam follower provided in the pressing direction from the cam groove moves in the pressing direction. And a second cam surface configured to rotate the cam follower to one side in the circumferential direction by the contact of a slider.

  Aspect 6: In one or more embodiments of the present invention, in the protruding position of the push rod, the slider engages with both the holder and the rotor to rotate the push rod by the holder and the holder. It is a lid opening / closing device blocked by a slider.

  According to one or more embodiments of the present invention, operability may be improved.

FIG. 1 (A) is a perspective view showing the entire lid opening / closing device according to the present embodiment, and FIG. 1 (B) is a side view seen from the rear side of the vehicle showing the lid opening / closing device with the cover removed. It is. FIG. 2 is an exploded perspective view of the lid opening / closing device shown in FIG. FIG. 3A is a partially broken side view showing the push rod inserted into the holder at the push-in position, and FIG. 3B shows the holder in a connected state between the push rod and the push-push mechanism. In a removed state. FIG. 4A is a front view of the rotor shown in FIG. 2 viewed from one side in the axial direction, and FIG. 4B is a perspective view showing one axial end of the rotor. FIG. 4C is a back view of the rotor viewed from the other side in the axial direction, and FIG. 4D is a perspective view showing the other axial end of the rotor. Fig. 5 (A) is a front view of the holder shown in Fig. 2 as viewed from one side in the axial direction, and Fig. 5 (B) is a perspective view showing one end of the holder in the axial direction. FIG. 6A is a perspective view showing one axial end of the holder, and FIG. 6B is a perspective view showing the other axial end of the holder. FIG. 7A is a partially broken sectional view showing the holder side cam surface of the holder, and FIG. 7B is a view from the circumferential direction of the holder of the first inclined cam surface shown in FIG. 7A. It is the expanded sectional view seen (7B-7B line expanded sectional view of FIG. 7 (A)). FIG. 8A is a perspective view showing one axial end of the slider shown in FIG. 2, and FIG. 8B is a perspective view showing the other axial end of the slider. FIG. 9 is a side cross-sectional view showing a connected state of the push rod and the push-push mechanism in the projecting position. FIG. 10A is a front view of the cam follower shown in FIG. 2 as viewed from one side in the axial direction, and FIG. 10B is a perspective view of the cam follower. 11 is a cross-sectional view (a cross-sectional view taken along line 11-11 of FIG. 14 (B)) seen from the outer side in the vehicle width direction showing the emergency mechanism shown in FIG. 12 (A) is a perspective view showing the periphery of the working groove shown in FIG. 11 with the emergency cable removed, and FIG. 12 (B) is an emergency around the working groove shown in FIG. 12 (A) It is a perspective view which shows the state which arranged the cable. FIG. 13A is a front view showing the unlocking attitude of the push rod shown in FIG. 1, and FIG. 13B is a front view showing the locking attitude of the push rod. Fig. 14 (A) is a side view showing a state in which the push rod of the lid opening / closing device shown in Fig. 1 is disposed at the projecting position, and Fig. 14 (B) is a push rod from the state of Fig. 14 (A). Is a side view showing a state of being pushed in the pushing direction and disposed at the pushing position. FIG. 15A is a perspective view showing how the push rod and the holder are connected in the unlocking posture, and FIG. 15B is a perspective view showing how the push rod and the holder are connected in the locking posture. . FIG. 16 is an explanatory view for explaining the operation of the push-push mechanism. FIG. 16 (A) shows a state in which the slider of the cam follower is locked to the holding cam surface of the holder at the pressing position, and FIG. 16 (B) shows a locked state with the holding cam surface of the slider FIG. 16C shows a state where the slider has reached the cam groove, and FIG. 16D shows the state where the slider and the cam follower move from the state shown in FIG. Shows the condition. FIG. 16 (E) shows a state in which the slider is pushed out in the pushing direction from the projecting position and the slider is released from the cam groove, and FIG. 16 (F) shows the sliding of the cam follower when it is again arranged in the pushing position. The state which the child has latched to the holding cam surface of a holder is shown.

  Hereinafter, the lid opening / closing device 10 according to the present embodiment will be described using the drawings. As shown in FIGS. 14A and 14B, the lid opening / closing device 10 is configured as an opening / closing device of a fuel lid 70 that opens and closes a filler opening of a vehicle (automobile). The arrow UP, the arrow FR, and the arrow OUT appropriately shown in the drawings respectively indicate the vehicle upper side, the vehicle front side, and the vehicle width direction outer side (vehicle left side) of the vehicle. In the following description, when showing the direction of the upper and lower sides, and front and back, it shall show the direction of vehicle upper and lower sides, and vehicle front and back, unless there is particular notice.

  As shown in FIGS. 1A and 1B, the lid opening / closing device 10 is formed in a substantially C-shaped block shape having a thickness direction as a whole as viewed from the rear side. The lid opening / closing device 10 includes a case 12 constituting an outer shell of the lid opening / closing device 10, a push rod 20 housed in the case 12, an electric drive mechanism 30 as a “drive mechanism”, and a push push mechanism 40. It is comprised including. In addition, the lid opening / closing device 10 has an emergency mechanism 60 that enables the fuel lid 70 to be opened and closed in an emergency. Hereinafter, each configuration of the lid opening and closing device 10 will be described.

(About case 12)
As also shown in FIG. 2, the case 12 is divided into two in the front-rear direction. Specifically, the case 12 is configured of a housing 14 that constitutes a front portion of the case 12 and a cover 16 that constitutes a rear portion of the case 12.

  The housing 14 has a substantially concave shape opened to the rear side, and is formed in a substantially C-shaped box shape when viewed from the rear side. At a lower portion of the housing 14, a first accommodation portion 14A for accommodating a rotor 34 of the electric drive mechanism 30, which will be described later, the push-push mechanism 40, and the like is formed. The first accommodation portion 14A extends in the vehicle width direction, and a bottom wall 14A1 of the first accommodation portion 14A is curved in a substantially semicircular shape opened to the rear side. Furthermore, the end on the inner side in the vehicle width direction of the first accommodation portion 14A is open.

  Further, a second accommodation portion 14B for accommodating a motor 32 of the electric drive mechanism 30, which will be described later, is formed in the upper portion of the housing 14, and the second accommodation portion 14B extends in the vertical direction. Between the first housing portion 14A and the second housing portion 14B, a communication groove 14C for communicating the both is formed. Further, a circular communication hole 14E for communicating the inside and the outside of the case 12 is formed through the side wall of the first accommodation portion 14A on the outer side in the vehicle width direction. A substantially circular ring shaped waterproof cap 18 is attached to the communication hole 14E.

  The cover 16 is formed in a lid shape in which the plate thickness direction is the front-rear direction, and is formed in a substantially C shape corresponding to the opening of the housing 14 when viewed from the rear side. The cover 16 is fastened and fixed to the housing 14 by a screw SC so as to close the opening of the housing 14.

(About push rod 20)
As shown in FIGS. 1 to 3 and 9, the push rod 20 is formed in a substantially cylindrical shape with a bottom with the vehicle width direction as an axial direction, and is opened inward in the vehicle width direction. The portion on one axial direction side (the outer side in the vehicle width direction) of the push rod 20 is inserted into the communication hole 14E (waterproof cap 18) of the housing 14, and the push rod 20 is axially movable and It is rotatably supported in the communication hole 14E via the waterproof cap 18 so as to be circumferentially rotatable. And although the details will be described later, the position of the push rod 20 shown in FIG. 14 (B) is referred to as a “pushed position” (in a broad sense, a position grasped as “initial position”). The tip end portion (one axial end portion) of the push rod 20 protrudes outward in the vehicle width direction from the housing 14. Further, as shown in FIG. 14A, the position of the push rod 20 which the push rod 20 has moved to one side in the axial direction as the “projecting direction” from the pushed-in position is referred to as “projected position”. The majority of the push rod 20 projects outward from the housing 14 in the vehicle width direction.

  Further, in the following description, the arrow A direction side in FIG. 13B is one side of the push rod 20 in the circumferential direction (around the axis), and the arrow B direction in FIG. Turn to the other side. The bottom wall 14A1 of the first accommodation portion 14A of the housing 14 is curved in an arc shape concentric with the outer peripheral surface of the push rod 20.

  As shown in FIGS. 13 and 14, a locking portion 20A is formed at the tip of the push rod 20, and the locking portion 20A has a substantially track shape in which the axial direction of the push rod 20 is the thickness direction It is formed in a plate shape. Further, a neck portion 20B smaller in diameter than the push rod 20 is formed on the inner side in the vehicle width direction of the locking portion 20A.

  Here, as shown in FIG. 14, a fuel lid 70 for opening and closing a fuel filler of a vehicle is provided on the outer side in the vehicle width direction of the push rod 20. In the present embodiment, the fuel lid 70 is disposed on the outer surface in the vehicle width direction (vehicle left surface) at the rear of the vehicle. An inner panel 72 is provided on the inner side (push rod 20 side) of the fuel lid 70, and a locking hole 72A is formed in the inner panel 72. The locking hole 72A is formed in a substantially track shape similar to the locking portion 20A of the push rod 20 when viewed from the vehicle width direction, and the locking portion 20A can be inserted into the locking hole 72A. It is configured.

Then, although the details will be described later, the locking portion 20A of the push rod 20 is inserted into the locking hole 72A of the fuel lid 70 and the constricted portion 20B is inserted into the locking hole 72A at the pressing position of the push rod 20. The attitude of the push rod 20 at that time (the attitude shown in FIG. 13A) is referred to as an unlock attitude. In this state, the locking portion 20A and the peripheral edge portion of the locking hole 72A are in the non-engagement state, and the fuel lid 70 can be moved in the protruding direction.
Further, a posture in which the push rod 20 is rotated to the other side in the circumferential direction from the unlocked posture (a posture rotated about 90 degrees in this embodiment) is referred to as a locked posture (a posture shown in FIG. 13B). Then, in the locking posture, the locking portion 20A engages with the peripheral edge portion of the locking hole 72A to lock the fuel lid 70 in a closed state. Hereinafter, for the sake of convenience, the push rod 20 will be described as being in the push-in position and in the unlocked position.

  As shown in FIG. 2 and FIG. 3, a plurality of (three in the present embodiment) guide projections for rods are projected radially outward on the outer peripheral portion of the portion on the other axial side of the push rod 20. 20C is integrally formed. The rod guide protrusions 20C are arranged at equal intervals (every 120 degrees) in the circumferential direction of the push rod 20. The rod guide projection 20C is formed in a substantially rectangular block shape when viewed from the radial direction of the push rod 20. Further, inclined portions 20C1 are respectively formed at both corner portions on the other axial direction side of the push rod 20 in the rod guide projection 20C, and the inclined portion 20C1 is a push rod 20 when viewed from the radial direction of the push rod 20. It is inclined in the direction to approach each other as it goes to the other axial direction side of.

  Further, at the outer peripheral portion of the other end of the push rod 20 in the axial direction, a restricting protrusion 20D protruding outward in the radial direction is integrally formed. The restricting protrusions 20D are disposed between the rod guide protrusions 20C adjacent in the circumferential direction of the push rod 20 when viewed from the axial direction of the push rod 20. When viewed from the radial direction of the push rod 20, the restriction protrusion 20D is formed in a substantially rectangular block shape. Further, an inclined portion 20D1 is formed at a corner on the other side in the axial direction of the push rod 20 in the restriction protrusion 20D, and the inclined portion 20D1 is viewed in the radial direction of the push rod 20. As it goes to the other side, it is inclined inward in the width direction of the regulation protrusion 20D.

(About the electric drive mechanism 30)
As shown in FIG. 1B and FIG. 2, the electric drive mechanism 30 is configured to include a motor 32 and a rotor 34.

<About the motor 32>
The motor 32 is disposed with the vertical direction as an axial direction, and the motor main body 32A of the motor 32 is accommodated inside the second accommodation portion 14B of the housing 14. An output shaft 32B of the motor 32 extends downward from the motor main body 32A and is disposed in the communication groove 14C of the housing 14 and is disposed rearward of the push rod 20 in the first accommodation portion 14A. ing. That is, the output shaft 32B of the motor 32 is disposed orthogonal to the push rod 20 as viewed from the rear side. A worm gear 32C is formed on the outer peripheral portion of the output shaft 32B. The motor 32 is electrically connected to the control unit 80 of the vehicle, and the control unit 80 drives the motor 32.

<About the rotor 34>
The rotor 34 is formed in a substantially cylindrical shape with the vehicle width direction as an axial direction, and is rotatably accommodated in the vehicle width direction outer side portion of the first accommodation portion 14A in the housing 14. Specifically, the rotor 34 is disposed coaxially with the push rod 20 and is disposed adjacent to the front side of the output shaft 32 B of the motor 32. In addition, the push rod 20 is inserted into the rotor 34, and the other end of the push rod 20 protrudes inward in the vehicle width direction from the rotor 34.

  As also shown in FIG. 4, three guide grooves 34A are formed in the inner circumferential portion of the rotor 34 at positions corresponding to the rod guide protrusions 20C of the push rod 20 described above, and the guide grooves 34A are formed. Is opened radially inward of the rotor 34 and penetrates in the axial direction of the rotor 34. The rod guide projection 20C of the push rod 20 is inserted in the guide groove 34A so as to be relatively movable in the axial direction and relatively immovable in the circumferential direction. Thereby, the rotor 34 is connected to the push rod 20 so as to be relatively movable in the axial direction and relatively non-movable (integrally movable) in the circumferential direction.

  A restricting groove 34B is formed at an inner peripheral portion at an end inward of the rotor 34 in the vehicle width direction at a position corresponding to the restricting projection 20D of the push rod 20. The restricting groove 34B extends in the axial direction of the rotor 34 and is open radially inward of the rotor 34 and inward in the vehicle width direction. Then, when the push rod 20 moves from the pushed-in position to the projecting position, the restricting projection 20D is configured to intrude into the restricting groove 34B. Further, the restricting projection 20D abuts on one end of the restricting groove 34B, whereby the movement of the push rod 20 in the axial direction at the projecting position is limited.

  An axially intermediate portion of the rotor 34 is a worm wheel portion 34C, and a gear engaged with the worm gear 32C of the motor 32 is formed on the outer peripheral portion of the worm wheel portion 34C. As a result, the motor 32 is driven, and the rotor 34 is rotated about its axis, whereby the push rod 20 rotates integrally with the rotor 34 to transition between the lock posture and the unlock posture. ing.

  Further, on the outer peripheral portion of the end in the vehicle width direction outer end (axial one end) of the rotor 34, a connecting protrusion 34E constituting an emergency mechanism 60 described later is formed. The connecting protrusion 34E is radially outward from the rotor 34 It is projected to. In addition, a contact piece 34F is integrally formed on the outer peripheral portion of the outer end portion of the rotor 34 in the vehicle width direction. The contact piece 34F is formed in a substantially fan shape as viewed in the axial direction of the rotor 34 and protrudes radially outward from the rotor 34. The contact piece 34F is spaced approximately 180 degrees in the circumferential direction of the rotor 34 with respect to the connection protrusion 34E.

  Then, as shown in FIG. 11, in the locking posture of the push rod 20, the contact piece 34F abuts against the first stopper 36 provided on the housing 14, and the other side of the rotor 34 in the circumferential direction (FIG. The rotation in the direction of arrow B) is limited. On the other hand, in the unlocking posture of the push rod 20, the contact piece 34F abuts on the second stopper 38 provided on the housing 14 to rotate the rotor 34 on one side in the circumferential direction (direction of arrow A in FIG. 11). Is configured to be limited.

(About the push and push mechanism 40)
As shown in FIG. 2, the push-push mechanism 40 includes a holder 42, a slider 44, a cam follower 46, and a spring 50, and is housed in the first housing portion 14A of the housing 14. There is. When the push rod 20 is pushed toward the other axial direction side (inward in the vehicle width direction) as the “pushing direction” at the projecting position, the push rod 20 is maintained at the pushing position by the push-push mechanism 40 It has become. On the other hand, when the push rod 20 is pushed back in the pushing direction at the pushing position, the push rod 20 is pushed out in the projecting direction by the push-push mechanism 40 and moves to the projecting position. Hereinafter, each configuration of the push-push mechanism 40 will be described.

<About holder 42>
As shown in FIG. 3A and FIGS. 5 to 7, the holder 42 is formed in a substantially bottomed cylindrical shape opened outward in the vehicle width direction. The holder 42 is housed in the vehicle width direction inner side portion of the first housing portion 14A in the housing 14, and is disposed adjacent to the rotor 34 in the vehicle width direction (see FIG. 1B). The holder 42 is disposed coaxially with the push rod 20 and is fixed to the housing 14 together with the cover 16 by means of the screw SC.

  In the holder 42, a portion from the axial intermediate portion to the opening side (projecting direction side) is used as the first holder portion 42A, and a portion from the axial intermediate portion to the bottom wall side (pushing direction side) is used as the second holder portion 42B. . The inner diameter of the first holder portion 42A is set smaller than the inner diameter of the second holder portion 42B. That is, the inner peripheral portion of the first holder portion 42A is projected radially inward with respect to the inner peripheral surface of the second holder portion 42B, and the projected portion is a holder inner portion 42C. A plurality of (three locations in this embodiment) cam grooves 42D for guiding a slider 44 and a cam follower 46 described later are formed in the holder inner portion 42C, and the cam grooves 42D extend in the axial direction of the holder 42. It is extended and penetrates holder inner part 42C. The cam grooves 42D are arranged at equal intervals (every 120 degrees) in the circumferential direction of the holder 42. Then, in the circumferential direction of the holder 42, the guide groove 34A of the rotor 34 and the cam groove 42D are disposed at the same position.

  As shown in FIG. 7A, a portion between the cam grooves 42D adjacent in the circumferential direction in the holder inner portion 42C is a holder side cam portion 42E. A holder-side cam surface 42F as a "first cam surface" is formed on an end surface of the holder-side cam portion 42E on the inner side (in the pushing direction) of the vehicle width direction. That is, while the holder side cam surface 42F is formed in the axial direction intermediate part of the holder 42, it connects the inner surface of cam groove 42D adjacent to the circumferential direction. The holder side cam surface 42F is a first inclined cam surface 42F1 as the "inclined cam surface" and a "inclined cam surface" disposed on one side of the holder 42 in the circumferential direction with respect to the first inclined cam surface 42F1. A second inclined cam surface 42F2 and a holding cam surface 42F3 connecting the first inclined cam surface 42F1 and the second inclined cam surface 42F2 are included. Specifically, when viewed from the radial direction of the holder 42, the first inclined cam surface 42F1 starts from the inner end of the cam groove 42D in the vehicle width direction as a starting point toward the circumferential direction one side of the holder 42 Outward in the vehicle width direction). The holding cam surface 42F3 extends in the pressing direction (inner side in the vehicle width direction) of the holder 42 from the end of the first inclined cam surface 42F1 when viewed from the radial direction of the holder 42. That is, the holding cam surface 42F3 is formed along a surface orthogonal to the circumferential direction of the holder 42. As viewed from the radial direction of the holder 42, the second inclined cam surface 42F2 extends in the projecting direction (the outer side in the vehicle width direction) from the inward end (end) of the holding cam surface 42F3 in the vehicle width direction It inclines and is connected to the end of cam groove 42D. Thereby, the holder side cam surface 42F is formed in a zigzag shape as viewed from the radial direction of the holder 42.

  Further, as shown in FIG. 7B, the first inclined cam surface 42F1 and the second inclined cam surface 42F2 are, as viewed from the circumferential direction of the holder 42, a car as it goes inward in the radial direction of the holder 42. It is inclined inward in the width direction. That is, in the first inclined cam surface 42F1 and the second inclined cam surface 42F2, the radially inner end 42J is disposed in the pressing direction (inner side in the vehicle width direction) with respect to the radially outer end 42K. The inclination angle θ of the first inclined cam surface 42F1 and the second inclined cam surface 42F2 viewed from the circumferential direction of the holder 42 (the first inclined cam surface 42F1 and the second inclination with respect to the plane orthogonal to the axial direction of the holder 42) The inclination angle of the cam surface 42F2 is set to approximately 5 degrees.

  As shown in FIGS. 5 and 6, at the open end of the first holder portion 42A, the blocking is extended in the circumferential direction of the holder 42 at a position outside in the vehicle width direction with respect to the holder side cam surface 42F. A groove 42G is formed through. Furthermore, an insertion groove 42H extending in the axial direction of the holder 42 is formed on the inner peripheral portion of the open end of the holder inner portion 42C. The insertion groove 42H is opened to the opening side of the holder 42, and is disposed at a position coincident with the restriction groove 34B of the rotor 34 when viewed from the axial direction of the holder 42. Further, as shown in FIG. 3A, the insertion groove 42H intersects with one end of the blocking groove 42G in the middle portion thereof, and is in communication with the blocking groove 42G. That is, the blocking groove 42G is extended from the middle portion of the insertion groove 42H to the other side of the holder 42 in the circumferential direction.

  When the push rod 20 is in the depressed position and in the unlocked position, the base end (the end on the inner side in the vehicle width direction) of the push rod 20 is inserted into the open end of the holder 42. Specifically, the restriction projection 20D of the push rod 20 is inserted from the opening of the insertion groove 42H and disposed at one end of the blocking groove 42G (intermediate part of the insertion groove 42H). Thus, in this state, axial movement of the push rod 20 is permitted by the insertion groove 42H.

  Further, the restriction protrusion 20D is configured to be insertable into the blocking groove 42G so as to be axially engageable so as to be relatively movable in the circumferential direction of the holder 42. Then, in the locking posture of the push rod 20, the push rod 20 and the rotor 34 rotate about the axis from the unlocking posture to the other side, and the restriction projection 20D is arranged at the other end of the blocking groove 42G. (See FIG. 15 (B)). Thereby, in the axial direction of the holder 42, the restriction projection 20D engages with the other end of the blocking groove 42G, and the axial movement of the push rod 20 in the locking posture is blocked by the holder 42 (blocking groove 42G) It is configured. The other end of the blocking groove 42G is a blocking portion 42G1.

  The bottom of the insertion groove 42H (the part on the pushing direction side with respect to the blocking groove 42G) is a pushing allowing portion 42H1, and the pushing allowing portion 42H1 is toward the blocking groove 42G when viewed from the radial direction of the holder 42. It is formed in an open concave shape. Then, when the push rod 20 moves in the pushing direction in the unlocking posture of the push rod 20, the restricting protrusion 20D is accommodated in the pushing allowing portion 42H1, and pushing (moving) in the pushing direction from the pushing position of the push rod 20 Is an acceptable configuration. On the other hand, the pushing (moving) of the push rod 20 in the pushing direction is restricted by the contact of the restriction projection 20D with the bottom surface of the pushing allowing portion 42H1. Further, a pair of sloped portions 42H2 is formed at the boundary between the pressing allowance portion 42H1 and the blocking groove 42G, and the pair of sloped portions 42H2 are seen from the radial direction of the holder 42 and move toward each other in the pressing direction. It is inclined in the approaching direction.

<About the slider 44>
As shown in FIG. 2, FIG. 3 (B), FIG. 8 and FIG. 9, the slider 44 is formed in a substantially cylindrical shape whose axial direction is the vehicle width direction. The slider 44 is disposed coaxially with the push rod 20 and is accommodated in the first holder portion 42A (open end portion) of the holder 42. Specifically, an end on one axial side (projecting direction) of the slider 44 is disposed adjacent to the proximal end of the push rod 20.

  Three slider guide protrusions 44A corresponding to the above-described guide groove 34A and cam groove 42D are integrally formed on the outer peripheral portion of the slider 44. Further, the slider guide projection 44A is inserted in the cam groove 42D of the holder 42 so as to be relatively movable in the axial direction and relatively immovable in the circumferential direction. Thereby, the slider 44 is connected to the holder 42 so as to be relatively movable in the axial direction. Then, at the projecting position of the push rod 20, the slider guide projection 44A is disposed straddling between the cam groove 42D of the holder 42 and the guide groove 34A of the rotor 34, and the slider 34 of the push rod 20 The rotation is regulated by the slider 44 and the holder 42 (see FIG. 9).

  A slider side cam portion 44 </ b> B is formed at an end of the slider 44 on the other axial direction side (pushing direction side). The slider side cam portion 44B has a plurality of (six in this embodiment) slider side cam surfaces 44C as "second cam surfaces" that constitute the end surface of the slider 44. The slider-side cam surfaces 44 </ b> C are arranged at predetermined intervals (every 60 degrees) in the circumferential direction of the slider 44. Further, the slider-side cam surface 44C is formed in a substantially V-shape protruding in the pressing direction side when viewed from the radial direction of the slider 44. Specifically, the slider-side cam surface 44C is configured to include a first inclined surface 44C1 and a second inclined surface 44C2 disposed on one side in the circumferential direction of the slider 44 with respect to the first inclined surface 44C1. ing. When the slider 44 is accommodated in the holder 42, the top of the slider-side cam surface 44C is disposed substantially at the center in the width direction of the cam groove 42D of the holder 42 when viewed from the radial direction of the holder 42 .

<About the cam follower 46>
As shown in FIG. 2, FIG. 9 and FIG. 10, the cam follower 46 is generally formed in a substantially cylindrical shape with a bottom with the vehicle width direction as the axial direction, and is open to one axial direction (projecting direction side) It is done. The cam follower 46 is disposed coaxially with the push rod 20 and is accommodated in the holder 42 so as to be relatively movable. Further, in a state where the cam follower 46 is accommodated in the holder 42, one axial end portion (outer end in the vehicle width direction) of the cam follower 46 is inserted into the slider 44 so as to be relatively movable.

  Three sliders 46A corresponding to the cam groove 42D of the holder 42 described above are integrally formed on the outer peripheral portion of the axially intermediate portion of the cam follower 46, and the slider 46A is formed radially from the cam follower 46 It is projected to the outside. The distal end portion of the slider 46A is configured to be insertable into the cam groove 42D so as to be relatively movable in the axial direction and relatively immovable in the circumferential direction. A sliding surface 46A1 is formed on the surface of the sliding element 46A in the projecting direction, and the sliding surface 46A1 is inclined in the projecting direction toward one side of the cam follower 46 in the circumferential direction.

  The sliding surface 46A1 is disposed to face the slider-side cam surface 44C of the slider 44 in the axial direction of the cam follower 46, and abuts on the first inclined cam surface 42F1 of the holder 42. Further, the slider 46A is disposed adjacent to the other side in the circumferential direction with respect to the holding cam surface 42F3 of the holder 42, and is in contact with the holding cam surface 42F3. As a result, at the push-in position of the push rod 20, the movement of the cam follower 46 in the direction of protrusion and the rotation in the circumferential direction are limited. Further, as described above, in the first inclined cam surface 42F1 and the second inclined cam surface 42F2, the radially inner end 42J is in the pressing direction (inner side in the vehicle width direction) with respect to the radially outer end 42K. It is arranged. Therefore, when the sliding surface 46A1 abuts on the first inclined cam surface 42F1 and the second inclined cam surface 42F2, the sliding surface 46A1 is set to abut on the end 42J (see FIG. 7B). .

  Further, at an axially intermediate portion of the cam follower 46, a flange portion 46B that protrudes outward in the radial direction is formed. The flange portion 46B couples the sliders 46A adjacent in the circumferential direction except for the tip end portion. The washer 48 is inserted from the right end of the cam follower 46, and the washer 48 is disposed adjacent to the inside in the vehicle width direction of the flange portion 46B. One axial end of the cam follower 46 is inserted into the push rod 20.

<About the spring 50>
As shown in FIG. 2, FIG. 3 (B) and FIG. 9, the spring 50 is configured as a compression coil spring and is mounted to the end inward in the vehicle width direction of the cam follower 46. One end (outside end in the vehicle width direction) of the spring 50 is engaged with the flange 46B of the cam follower 46 via the washer 48, and the other end (inward end in the vehicle width direction) of the spring 50 is a holder It is locked to the bottom wall 42 and the spring 50 is compressed and deformed from the natural state. As a result, the push rod 20 is biased outward in the vehicle width direction (projecting direction) by the biasing force of the spring 50 via the cam follower 46 and the slider 44.

(About Emergency Mechanism 60)
As shown in FIGS. 2, 11 and 12, the emergency mechanism 60 includes an emergency cable 64 and a cable routing mechanism 62 for routing the emergency cable 64 to the case 12. ing.

  The cable routing mechanism 62 has an operating groove 14 F formed in the housing 14. The actuating groove 14F is formed to penetrate the bottom wall 14A1 of the first accommodation portion 14A, is disposed radially outside the rotor 34, and extends in the circumferential direction of the push rod 20. The connection protrusion 34E of the rotor 34 is inserted into the working groove 14F so as to be relatively movable. Specifically, in the unlocking posture of the push rod 20, the coupling protrusion 34E is disposed at one end of the actuating groove 14F, and in the locking posture of the push rod 20, the coupling protrusion 34E is on the other end of the actuating groove 14F. It is supposed to be deployed.

  The cable routing mechanism 62 also has a pair of holding claws 14 G for holding the emergency cable 64. The holding claws 14 </ b> G are integrally formed at edges on both sides in the width direction of the operation groove 14 </ b> F in the housing 14. The holding claws 14G are symmetrical with respect to the longitudinal direction of the operation groove 14F. Specifically, the holding claw 14G is formed in a substantially inverted L shape as viewed from the longitudinal direction of the operation groove 14F, and protrudes from the housing 14 to the outside of the housing 14, and the tip portion of the holding claw 14G is , Projecting inward in the width direction of the actuating groove 14F. Further, the pair of holding claws 14G are disposed apart from each other in the longitudinal direction of the operation groove 14F.

  Further, a cable insertion hole 14H is formed in the housing 14 on the other side in the circumferential direction of the push rod 20 with respect to the operation groove 14F, and the inside and the outside of the case 12 are communicated by the cable insertion hole 14H. . On the other hand, the cover 16 is formed with a cable housing portion 16A that protrudes to the rear side on the radially outer side of the rotor 34. The cable housing portion 16A is formed in a concave shape opened to the front side, and is curved in a substantially semicircular shape concentric with the rotor 34 when viewed from the axial direction of the push rod 20.

  The cable routing mechanism 62 also has a cable guide 14 J for guiding the emergency cable 64, and the cable guide 14 J is formed in the lower part of the housing 14. The cable guide 14J is formed in the shape of a groove opened to the outer side in the vehicle width direction, and is curved in a substantially quarter arc shape in which the front lower side is convex as viewed from the outer side in the vehicle width direction.

  The emergency cable 64 is made of resin and is formed in a substantially elongated shape having flexibility. The emergency cable 64 is configured to include a cable main body 64A and a cable end portion 64B which constitutes a distal end portion of the emergency cable 64. The cable main body 64A is formed in a cable shape having a circular cross section, and the cable end portion 64B is formed in a long strip shape. Then, the tip end of the cable end portion 64B is inserted from the cable insertion hole 14H of the housing 14 into the inside of the case 12, and is curved and routed along the bottom wall of the cable housing portion 16A.

  Further, a notch 64C corresponding to the holding claw 14G described above is formed at an edge on both sides in the width direction at the middle in the longitudinal direction of the cable end 64B, and the notch 64C is a plate of the cable end 64B. When viewed from the thickness direction, it is formed in a substantially trapezoidal shape opened outward in the width direction of the cable end portion 64B. The cable end portion 64B is disposed between the holding claw 14G and the housing 14 by disposing the notch portion 64C at a position corresponding to the holding claw 14G and shifting the cable end portion 64B to the distal end side. It is held by the claws 14G. As a result, the cable end portion 64B is routed in a curved state along the bottom wall 14A1 of the housing 14 (specifically, along the working groove 14F).

  Also, the cable main body 64A extended from the cable end portion 64B to the proximal end side is routed in the cable guide 14J and bent to the rear side. And although illustration is abbreviate | omitted, holding | grip part 64D which comprises the base end part of the emergency cable 64 is arrange | positioned so that operation is possible between the trunk room of a vehicle, and the body of a vehicle.

  In addition, a cable protrusion 64E is integrally formed on the inner side surface of the longitudinal direction intermediate portion of the cable end portion 64B, and the cable protrusion 64E is protruded from the cable end portion 64B to the case 12 side into the working groove 14F. It is arranged. And, as shown in FIG. 11, in the non-operating position of the emergency cable 64 and the locking posture of the push rod 20, the connecting projection 34E of the rotor 34 is one side of the cable projection 64E in the circumferential direction of the rotor 34 (FIG. 11). Is disposed adjacent to the arrow A direction).

  Furthermore, a handle portion 64F is integrally formed on the outer side surface of the longitudinal direction intermediate portion of the cable end portion 64B, and the handle portion 64F protrudes outward from the cable end portion 64B. The handle portion 64F is configured as a handle for working when the emergency cable 64 is routed to the case 12.

(About action and effect)
Next, while describing the opening / closing operation of the fuel lid 70 by the lid opening / closing device 10 and the operation of the lid opening / closing device 10 in an emergency, the operation and effects of the present embodiment will be described.

(About the transition between the lock posture and the unlock posture of the push rod 20 in the lid opening and closing device 10)
The state shown in FIG. 13B is the lock posture of the push rod 20 in the lid opening / closing device 10. In this posture, the tip of the push rod 20 is inserted into the locking hole 72A of the fuel lid 70, and the locking portion 20A of the push rod 20 is engaged with the peripheral edge of the locking hole 72A. Thus, the fuel lid 70 is locked in a state in which the fuel filler of the vehicle is closed. In this state, as shown in FIG. 15B, the restriction projection 20D of the push rod 20 is disposed in the blocking portion 42G1 of the blocking groove 42G in the holder 42. For this reason, the movement of the push rod 20 to one side and the other side in the axial direction is blocked, and the pushing operation and the pulling operation on the fuel lid 70 are limited. That is, the fuel lid 70 can not be opened.

  In this state, when the lock state of the lock device for locking the side door of the vehicle is released, the lid opening / closing device 10 is operated, and the push rod 20 changes from the lock posture to the unlock posture. Specifically, the motor 32 is driven by the control unit 80, and the rotor 34 is rotated to one side in the circumferential direction (the side of the arrow A in FIG. 13B). At this time, since the push rod 20 is connected non-rotatably to the rotor 34, the push rod 20 rotates in one circumferential direction integrally with the rotor 34, and changes from the locked posture to the unlocked posture (see FIG. 13 (A)). Thereby, the engaged state between the locking portion 20A of the push rod 20 and the peripheral portion of the locking hole 72A of the fuel lid 70 is released. As a result, the relative movement of the fuel lid 70 in the projecting direction with respect to the push rod 20 is permitted, and the axial movement of the push rod 20 is permitted.

  On the other hand, when the lock device at the side door of the vehicle is locked while the push rod 20 is shifted to the unlocking posture, the lid opening / closing device 10 is actuated to shift the push rod 20 from the unlocking posture to the locking posture Do. Specifically, the motor 32 is driven by the control unit 80, and the rotor 34 is rotated to the other side in the circumferential direction (in the direction of the arrow B in FIG. 13A). As a result, the push rod 20 rotates in the other circumferential direction integrally with the rotor 34, and changes from the unlock posture to the lock posture. Therefore, the locking portion 20A of the push rod 20 and the peripheral portion of the locking hole 72A of the fuel lid 70 are engaged. As a result, the fuel lid 70 is locked in a state in which the fuel filler of the vehicle is closed. Further, at this time, as described above, the restricting projection 20D of the push rod 20 is disposed in the blocking portion 42G1 of the blocking groove 42G in the holder 42, so that the axial movement of the push rod 20 is limited. Thereby, the pressing operation on the fuel lid 70 is also limited.

  When the push rod 20 makes a transition between the locking posture and the unlocking posture, the connecting projection 34E of the rotor 34 moves in the working groove 14F. Here, as shown in FIG. 11, in the locking posture of the push rod 20, the cable protrusion 64E of the emergency cable 64 is on the other circumferential side of the rotor 34 with respect to the connecting protrusion 34E of the rotor 34 (arrow B in FIG. Direction side). For this reason, when the push rod 20 makes a transition between the locking posture and the unlocking posture, the rotor 34 rotates without the connection protrusion 34E abutting on the cable protrusion 64E. Therefore, the push rod 20 makes a transition between the locking posture and the unlocking posture without inhibiting the rotation of the rotor 34 by the cable protrusion 64E of the emergency cable 64.

(About the movement from the pushing position of the push rod 20 to the projecting position)
As shown in FIG. 15A, in the unlocking posture of the push rod 20, the restriction projection 20D of the push rod 20 is one end of the blocking groove 42G of the holder 42 (that is, the middle part of the insertion groove 42H of the holder 42). ) Are located inside. As a result, axial movement of the push rod 20 is permitted. Further, in this state, when viewed from the axial direction of the rotor 34, the guide groove 34A of the rotor 34 is disposed at a position coincident with the cam groove 42D of the holder 42.

  In this state, when the fuel lid 70 is pushed inward in the vehicle width direction, the push rod 20 is pushed in the pushing direction through the fuel lid 70. As a result, the push-push mechanism 40 is actuated, the push rod 20 is disposed from the push-in position to the projecting position, and the fuel lid 70 is in a state of opening the fuel filler.

  The operation of the push-push mechanism 40 will be described below with reference to FIG. In FIG. 16, the holder-side cam surface 42F and the slider-side cam surface 44C of the push-push mechanism 40 are shown as a development viewed from the outside in the radial direction of the holder 42 (slider 44). Further, in FIG. 16, the arrow a is shown as the pressing direction, the arrow c is shown as the projecting direction, and the arrow b is shown as one circumferential side of the holder 42 (slider 44).

  As shown in FIG. 16A, in the unlocking posture of the push rod 20, the slider 46A of the cam follower 46 in the push-push mechanism 40 is the first inclined cam surface 42F1 and the holder-side cam surface 42F of the holder 42. It is in contact with the holding cam surface 42F3. For this reason, the holder 42 restricts the movement of the cam follower 46 in the protruding direction and one side in the circumferential direction. Thus, the push rod 20, the slider 44, and the cam follower 46 are maintained at the pushed-in position.

  In this state, when the push rod 20 is pushed in the pushing direction against the urging force of the spring 50, the restriction projection 20D of the push rod 20 is inserted into the pushing allowing portion 42H1 in the insertion groove 42H of the holder 42.

  At this time, the slider 44 and the push rod 20 are displaced relative to the holder 42 in the pushing direction. As a result, the sliding surface 46A1 of the cam follower 46 is pressed by the slider-side cam surface 44C (second inclined surface 44C2) of the slider 44 and is relatively displaced in the pushing direction. That is, the state where the sliding surface 46A1 of the cam follower 46 abuts on the holder side cam surface 42F (first inclined cam surface 42F1) of the holder 42 is released. In this state, the state in which the slider 46A of the cam follower 46 is in contact with the holding cam surface 42F3 of the holder 42 is maintained.

  Here, as viewed from the radial direction of the slider 44, the slider-side cam surface 44C (second inclined surface 44C2) of the slider 44 and the sliding surface 46A1 of the cam follower 46 are inclined in the projecting direction toward one side in the circumferential direction. There is. Therefore, when the slider side cam surface 44C (second inclined surface 44C2) of the slider 44 presses the sliding surface 46A1 of the cam follower 46 in the pushing direction, the rotational force from the slider 44 to the cam follower 46 in one circumferential direction is Works. However, as described above, since the state in which the slider 46A of the cam follower 46 is in contact with the holding cam surface 42F3 of the holder 42 is maintained, the rotation of the cam follower 46 to one side in the circumferential direction is limited. Then, the cam follower 46 is displaced in the pushing direction.

  Then, when the restriction protrusion 20D of the push rod 20 abuts on the bottom of the push allowing portion 42H1, the push in the push direction of the push rod 20 is restricted. At this time, the contact state between the slider 46A of the cam follower 46 and the holding cam surface 42F3 of the holder 42 is released. As a result, while the slider 46A slides on the second inclined surface 44C2 of the slider-side cam surface 44C by the rotational force acting on the cam follower 46 from the slider 44, the cam follower 46 is circumferentially one side with respect to the slider 44 Relative rotation (see FIG. 16 (B)).

  Then, when the pressing operation on the fuel lid 70 is finished in this state, the push rod 20, the slider 44 and the cam follower 46 are pushed out in the projecting direction by the biasing force of the spring 50. That is, the push rod 20, the slider 44, and the cam follower 46 are inverted and displaced in the projecting direction. At this time, the sliding surface 46A1 of the cam follower 46 abuts on the second inclined cam surface 42F2 of the holder 42.

  Here, when viewed from the radial direction of the slider 44, the second inclined cam surface 42F2 of the holder 42 and the sliding surface 46A1 of the cam follower 46 are inclined in the protruding direction as it goes to one side in the circumferential direction. Therefore, when the sliding surface 46A1 of the cam follower 46 abuts on the second inclined cam surface 42F2 of the holder 42, a rotational force acts on the sliding surface 46A1 from the second inclined cam surface 42F2 in the circumferential direction. Therefore, when the cam follower 46 is further displaced in the projecting direction in this state, the cam follower 46 further rotates in the circumferential direction while the sliding surface 46A1 of the cam follower 46 slides on the second inclined cam surface 42F2. Then, as shown in FIGS. 16C and 16D, when the slider 46A of the cam follower 46 reaches the cam groove 42D of the holder 42, the slider 46A moves in the protruding direction in the cam groove 42D. .

  At this time, the slider 44 and the push rod 20 are also pressed by the cam follower 46 and move in the projecting direction. Thereby, the push rod 20 is moved from the pushing position to the projecting position. Specifically, the restricting projection 20D of the push rod 20 moves in the projecting direction in the insertion groove 42H of the holder 42 and is separated from the insertion groove 42H and inserted into the restricting groove 34B of the rotor 34. Then, the restriction projection 20D abuts on the bottom of the restriction groove 34B of the rotor 34, whereby the movement of the push rod 20 in the projecting direction is restricted, and the push rod 20 is disposed at the projecting position. At this time, the slider guide projection 44A of the slider 44 is disposed so as to straddle the guide groove 34A of the rotor 34 and the cam groove 42D of the holder 42, and the relative position of the rotor 34 (i.e., the push rod 20) to the holder 42 is obtained. Rotation is limited (see FIG. 9). Thus, the fuel lid 70 is pushed outward by the push rod 20 in the vehicle width direction (outside in the vehicle width direction), and the locking portion 20A of the push rod 20 is disengaged from the locking hole 72A of the fuel lid 70. As a result, the fuel lid 70 is in a state in which the fuel hole is opened.

(About the movement from the projecting position of the push rod 20 to the pushing position)
When the fuel lid 70 is closed while the fuel lid 70 is open, the push rod 20 is pushed from the projecting position in the pushing direction against the biasing force of the spring 50. In this state, the push rod 20 is pushed in the pushing direction with the lock portion 20A of the push rod 20 inserted in the lock hole 72A of the fuel lid 70. As a result, the push-push mechanism 40 operates to maintain the push rod 20 in the pushed-in position. Hereinafter, the push-push mechanism 40 at this time will be described.

  When the push rod 20 moves in the push-in direction from the projecting position, the restriction projection 20D of the push rod 20 disengages from the restriction groove 34B of the rotor 34 and is inserted into the insertion groove 42H of the holder 42. Then, the restriction protrusion 20D is disposed in the pressing allowing portion 42H1 of the insertion groove 42H.

  When the push rod 20 moves in the pushing direction, the slider 44 and the cam follower 46 are pressed by the push rod 20 and move in the pushing direction. Specifically, the slider guide projection 44A of the slider 44 and the slider 46A of the cam follower 46 move in the pushing direction in the cam groove 42D of the holder 42. At this time, the sliding surface 46A1 of the cam follower 46 is pressed by the second inclined surface 44C2 on the slider-side cam surface 44C of the slider 44, and the cam follower 46 is displaced in the pushing direction.

  Then, when the restricting projection 20D of the push rod 20 reaches the bottom of the push allowing portion 42H1, as shown in FIG. 16E, the slider 46A of the cam follower 46 moves from the cam groove 42D of the holder 42 in the push direction. break away. Therefore, while the slider 46A slides on the second inclined surface 44C2 of the slider-side cam surface 44C of the slider 44, the cam follower 46 rotates relative to the slider 44 in one circumferential direction.

  Then, when the pressing operation on the fuel lid 70 is finished in this state, the push rod 20, the slider 44 and the cam follower 46 are pushed out in the projecting direction by the biasing force of the spring 50. That is, the push rod 20, the slider 44, and the cam follower 46 are inverted and displaced in the projecting direction. At this time, the sliding surface 46A1 of the cam follower 46 abuts on the first inclined cam surface 42F1 of the holder 42. Then, when the push rod 20 reaches the push-in position, as shown in FIG. 16 (F), the slider 44 while the sliding surface 46A1 of the cam follower 46 slides on the first inclined cam surface 42F1 of the holder 42. Rotate further to one side in the circumferential direction. At this time, the slider 46A of the cam follower 46 abuts on the holding cam surface 42F3 of the holder 42, and the rotation of the cam follower 46 in one circumferential direction is stopped. Thereby, the movement of the cam follower 46 to one side in the axial direction and to one side in the circumferential direction is blocked, and the push rod 20 is maintained at the pressing position.

(About the operation of the lid opening and closing device 10 in an emergency)
In an emergency such as when the motor 32 of the lid opening / closing device 10 is temporarily broken or the battery of the vehicle is insufficiently charged while the push rod 20 is in the lock posture, the control unit 80 The motor 32 does not drive. That is, in such an emergency, the fuel lid 70 can not be opened. Therefore, in such a case, by operating the emergency cable 64 by the user and operating the emergency mechanism 60, the push rod 20 is transitioned from the locking posture to the unlocking posture. As a result, the push operation on the push rod 20 of the lid opening / closing device 10 is enabled, and the fuel lid 70 is opened even in an emergency. The operation of the emergency mechanism 60 will be described below.

  As shown in FIG. 11, when operating the emergency mechanism 60, the user grips the grip portion 64D of the emergency cable 64 and pulls the emergency cable 64 to the rear side. As a result, the tip end of the cable end portion 64B of the emergency cable 64 is pulled out of the cable insertion hole 14H of the housing 14 to the outside of the case 12, and the cable end portion 64B moves relative to the housing 14.

  The cable end portion 64B is held by the holding claws 14G of the housing 14 and routed along the operation groove 14F. Therefore, when the cable end portion 64B moves relative to the housing 14, the cable end portion 64B is displaced along the longitudinal direction of the operation groove 14F. As a result, the cable protrusion 64E of the cable end portion 64B abuts on the connection protrusion 34E of the rotor 34, and presses the connection protrusion 34E to one side in the circumferential direction of the rotor 34 (arrow A direction in FIG. 11). As a result, the rotor 34 and the push rod 20 rotate from the locked position in the circumferential direction to one side to shift to the unlocked position. Therefore, the axial movement of the push rod 20 is permitted (the operation of the push-push mechanism 40 is permitted). Therefore, in this state, when the user pushes the fuel lid 70, the push-push mechanism 40 operates to move the push rod 20 from the pushing position to the projecting position. As described above, the fuel lid 70 can be opened in an emergency.

  Here, in the lid opening / closing device 10 of the present embodiment, the electric drive mechanism 30 is provided, and when the electric drive mechanism 30 operates, the push rod 20 at the push-in position is between the lock posture and the unlock posture. Transition. Then, by performing a pressing operation on the push rod 20 that has transitioned to the unlocking posture, the push rod 20 moves between the pressing position and the protruding position. That is, in the lid opening / closing device 10 according to the present embodiment, the movement between the push-in position and the projection position and the transition (rotation) between the locking posture and the unlocking posture in the push rod 20 are separately performed. It will be. Therefore, in the push rod 20, the push load of the push rod 20 is reduced compared to the configuration in which the movement between the push position and the projection position and the transition between the lock posture and the unlock posture are simultaneously performed. be able to. Thus, the operability of the lid opening / closing device 10 can be improved.

  Also, the push-push mechanism 40 has a spring 50 that biases the push rod 20 in the projecting direction via the slider 44 and the cam follower 46. For this reason, the pressing load on the push rod 20 is set by the load of the spring 50. Therefore, by setting the load of the spring 50 appropriately, the pressing load on the push rod 20 can be easily adjusted. Therefore, the operating force of the lid opening / closing device 10 can be easily adjusted.

  The electric drive mechanism 30 further includes a motor 32 and a rotor 34 connected to the motor 32. Further, the rotor 34 is connected to the push rod 20 so as to be relatively movable in the axial direction and not relatively rotatable in the circumferential direction. Thus, the push rod 20 can be rotated by the rotor 34 between the lock posture and the unlock posture, and at the time of axial movement of the push rod 20, the push rod 20 separates from the rotor 34 and moves back and forth Since it is movable, the electric drive mechanism 30 for operating the push rod 20 can be easily configured.

  Further, a blocking groove 42G is formed in the holder 42, and the control projection 20D of the push rod 20 is disposed in the blocking groove 42G at the pressing position. Then, in the locking posture of the push rod 20, the restricting projection 20D is disposed in the blocking portion 42G1 of the blocking groove 42G, and the axial movement of the push rod 20 is restricted. Thus, the fuel lid 70 can be locked (locked) in an unreleasable manner by the rotation of the push rod 20 from the unlock position to the lock position, and the operation of the push-push mechanism 40 can be disabled. . Therefore, one electric drive mechanism 30 can operate the operation of locking (locking) the fuel lid 70 and the operation of disabling the operation of the push-push mechanism 40. It can contribute to miniaturization and simplification.

  Further, in the push-push mechanism 40, the slider 46A of the cam follower 46 is engaged with the first inclined cam surface 42F1 and the holding cam surface 42F3 of the holder 42 at the push-in position, and movement in the projecting direction is restricted. ing. Therefore, the biasing force of the spring 50 of the push-push mechanism 40 does not act on the push rod 20 at the pressing position. Thus, the driving force of the electric drive mechanism 30 can be reduced when the push rod 20 is rotated between the lock attitude and the unlock attitude by the electric drive mechanism 30. As a result, the motor 32 used for the electric drive mechanism 30 can be miniaturized, which can contribute to the miniaturization of the electric drive mechanism 30 and the lid opening / closing device 10.

  Further, at the projecting position of the push rod 20, the slider guide projection 44A of the slider 44 is disposed so as to straddle the guide groove 34A of the rotor 34 and the cam groove 42D of the holder 42. Thereby, the rotation of the rotor 34 (i.e., the push rod 20) in the projecting position of the push rod 20 can be limited. Therefore, when the fuel lid 70 is pushed from the open state to the closed state, the locking portion 20A and the neck portion 20B of the push rod 20 can be favorably inserted into the locking hole 72A of the fuel lid 70.

DESCRIPTION OF REFERENCE NUMERALS 10 lid opening / closing device 12 case 14 housing 14A first housing portion 14A1 bottom wall 14B second housing portion 14C communication groove 14E communication groove 14E communication hole 14F operation groove 14G holding claw 14H cable insertion hole 14J cable guide 16 cover 16A cable housing portion 18 waterproof cap 20 Push rod 20A Locking portion 20B Necking portion 20C Rod guide projection 20C1 Sloped portion 20D Regulating projection 20D1 Sloped portion 30 Electric drive mechanism 32 Motor 32A Motor main body 32B Output shaft 32C Worm gear 34 Rotor 34A Guide groove 34B Regulating groove 34C Worm wheel portion 34E Coupling projection 34F Abutment piece 36 First stopper 38 Second stopper 40 Push-push mechanism 42 Holder 42A First holder portion 42B Second holder portion 42C Holder inner portion 42D Cam groove 42E Holder side cover Part 42F holder side cam surface (first cam surface)
42F1 First inclined cam surface (inclined cam surface)
42F2 Second inclined cam surface (inclined cam surface)
42F3 Holding cam surface 42G Blocking groove 42G1 Blocking portion 42H Insertion groove 42H1 Pushing portion 42H2 Sloped portion 42J End portion 42K End portion 44 Slider 44A Slider guide projection 44B Slider side cam portion 44C Slider side cam surface (second cam surface)
44C1 First inclined surface 44C2 Second inclined surface 46 Cam follower 46A Slider 46A1 Sliding surface 46B Flange 48 Washer 50 Spring 60 Emergency mechanism 62 Cable routing mechanism 64 Emergency cable 64A Cable body 64B Cable end 64C Notch 64D Gripping portion 64E Cable projection 64F Handle portion 70 Fuel lid 72 Inner panel 72A Locking hole 80 Control portion

Claims (6)

The fuel lid in the closed state is pushed out to be open by being disposed at a projecting position in which one side in the axial direction is the projecting direction and the other side in the axial direction is the pushing direction and the projecting position is moved in the projecting direction from the pushing position. A push rod for transitioning between a locking posture for locking the fuel lid by rotation and an unlocking posture for releasing the locked state with the fuel lid;
A push-push mechanism for maintaining the push rod pushed from the projecting position in the pushing direction at the pushing position and pushing the push rod to the projecting position by pushing the push rod again in the pushing direction;
A drive mechanism for causing the push rod to transition between the locking attitude and the unlocking attitude by driving at the pushing position of the push rod;
Lid opening and closing device.   The lid opening / closing device according to claim 1, wherein the push-push mechanism includes a spring that biases the push rod in a projecting direction. The drive mechanism is
Motor,
A rotor that rotates about an axis of the push rod by a driving force of the motor;
Equipped with
The lid opening / closing device according to claim 2, wherein the push rod is coupled to the rotor so as to be relatively movable in the axial direction of the push rod and relatively non-rotatable around the axis of the push rod. The push-push mechanism has a cylindrical holder which is disposed on the other axial side of the push rod and holds the other axial end of the push rod so as to be relatively movable.
The lid opening / closing device according to claim 3, wherein the holder includes a blocking portion that blocks axial movement of the push rod in the locking posture of the push rod. The push mechanism is
A cam follower housed in the holder and having a slider coupled to the holder and biased in a projecting direction by the spring;
A slider provided between the push rod and the cam follower;
A plurality of cam grooves provided on an inner peripheral portion of the holder, in which the slider is inserted so as to be relatively movable in the axial direction of the holder and relatively non-rotatable in the circumferential direction;
The cam follower is provided between the cam grooves adjacent in the circumferential direction of the holder, and the slide element abuts against the cam follower when the cam follower moves out in the pushing direction from the cam groove in the projecting direction. A pair of inclined cam surfaces that are rotated to the side, and a holding cam surface that is provided between the pair of inclined cam surfaces and that holds the cam follower in the pushed-in position by the abutment of the slider. With the cam surface,
A second cam surface provided on the slider and rotating the cam follower circumferentially to one side by the contact of the slider when the cam follower moves away from the cam groove in the pushing direction and moves in the pushing direction;
The lid opening / closing device according to claim 4, comprising: The lid opening and closing device according to claim 5, wherein the slider engages with both the holder and the rotor at the protruding position of the push rod, and prevents the rotation of the push rod by the holder and the slider.

Images