JP5232727B2 - Automatic transmission shift device - Google Patents

Description

  The present invention relates to a shift device for an automatic transmission used in a vehicle such as an automobile.

  2. Description of the Related Art Conventionally, shift devices for automatic transmissions used in vehicles such as automobiles are widely known. In addition, a shift device for an automatic transmission that is appropriately switched from an auto mode to a manual mode is widely known. As a shift device of an automatic transmission that can be switched to the manual mode, for example, there is one proposed in Patent Document 1. This includes a gate plate having a main gate and a sub-gate, and a cable connected to a transmission provided in a vehicle disposed below the gate plate so as to be rotatable in the front-rear direction with respect to the gate plate. And a change lever (shift lever) that is turnable in the front-rear and left-right directions and connected to the transmission change-over member so as to be connected and disconnected. Then, when the change lever is moved from the drive range provided in the main gate to the sub-gate on the right side, the block body as a connecting piece provided in the change lever is connected to the connecting portion provided in the transmission switching member. As a result, the connection between the change lever and the transmission switching member is released, and the manual mode state can be established. When the change lever is moved from the sub-gate to the drive range on the left side, the block body enters the holding groove and the two are connected. When these two are connected, the auto mode state is established, and when the change lever is moved from the drive range of the main gate to another range in the main gate, the transmission switching member rotates in the front-rear direction accordingly. When rotating, the automatic transmission is switched by pushing and pulling the cable.

JP 2007-230424 A

  However, in a state where the connection between the connecting piece of the change lever and the connecting portion of the transmission switching member is released, the transmission switching member is not restrained by the change lever, so that the change lever is in the sub-gate. In addition, there is a risk of rotating alone in the front-rear direction due to vibration or the like. When the transmission switching member rotates alone due to vibration or the like, the connecting piece of the change lever and the connecting portion of the transmission switching member are displaced, and the two are connected when the change lever is returned from the sub-gate to the main gate. It becomes impossible. Therefore, while the change lever is in the sub-gate, it is necessary to restrict the transmission switching member from rotating alone due to vibration or the like.

  In such a case, for example, the transmission switching member is placed at a position where the connection between the connecting piece of the change lever and the connecting portion of the transmission switching member is disengaged, that is, at the position where the change lever comes into the drive range of the main gate. It may be possible to hold it with a leaf spring or the like. However, if a leaf spring or the like is provided, the number of parts increases and an assembly step of the leaf spring is added.

  The present invention regulates the transmission switching member so that it does not rotate independently due to vibration or the like while the change lever is in the sub-gate, and does not increase the number of parts. The purpose is to provide a device.

In order to solve the above-mentioned problems, a first aspect of the present invention is directed to a gate plate having a main gate and a sub-gate, and a transmission switching unit disposed below the gate plate so as to be rotatable with respect to the gate plate. And a change lever coupled to the transmission switching member so as to be connected / disengageable, and the change lever is moved from the drive range provided in the main gate to the sub-gate, thereby changing the change lever. The connection between the lever and the transmission switching member can be released and the manual mode state can be established, and the change lever is returned from the sub-gate to the drive range so that the both are connected again to return to the auto mode state. A shift device for an automatic transmission, which is configured to be able to perform the transmission switching member, a gate plate, To one, locking piece having an integrally formed resilient and to be the one to be fabricated at the same time when fabricating the one is provided, wherein in the other, the engaging piece and disengageably The locking piece is locked to the locking portion when the change lever comes to the drive range, and the change lever is moved from the drive range to the main gate. An automatic transmission characterized in that it is configured to be unlocked from the locking portion when the transmission switching member is rotated as it is moved to a range other than the drive range provided in A shift device is provided.

According to a second aspect of the present invention, in the first aspect, the gate plate includes a plate body having the main gate and the sub-gate, and an auxiliary plate stacked on the plate body. The lock lever is provided with a muffler gate corresponding to the main gate and the sub gate so that the change lever contacts the gate when moving, and is made of a soft material softer than the plate main body. Is formed integrally with the auxiliary plate so as to be manufactured at the same time as the auxiliary plate is manufactured, and the locking portion is formed on a part of the upper surface of the transmission switching member. The rotating member is configured to be able to be engaged with and disengaged from the lower end of the locking piece.

  According to the first aspect of the present invention, the locking piece provided on one of the transmission switching member and the gate plate is the locking portion provided on the other when the change lever is in the drive range. And when the transmission lever is moved from the drive range to another range in the main gate, the engagement with the engagement portion is released.

  Thus, even when the change lever moves from the drive range to the sub-gate and the connection between the change lever and the transmission switching member is released, the locking piece and the locking portion are locked, so the transmission switching member Can be prevented from rotating freely due to vibration or the like. Therefore, it is possible to prevent the positional shift between the change lever and the transmission switching member when the change lever is moved from the sub-gate to the drive range, and to smoothly connect the two.

  Further, since the locking piece is formed integrally with one of the transmission switching member and the gate plate, the locking piece is provided separately from the transmission switching member or the gate plate. Even if it is not manufactured, the locking piece can be manufactured at the same time when the transmission switching member or the gate plate is manufactured, and the manufacturing can be facilitated. In addition, the assembly work to the transmission switching member or the gate plate can be made unnecessary, and the number of parts can be reduced.

  According to claim 2, the gate plate is provided with a plate body and an auxiliary plate, and the auxiliary plate is provided with a silencing gate arranged so that the change lever contacts the main gate and the sub gate. It is made of a soft material softer than the plate body.

  As a result, when the change lever is moved along the main gate or the sub gate of the gate plate, the change lever can be applied to the silencing gate, and collision noise can be suppressed.

  In addition, since the locking piece is elastically provided so as to project integrally downward from the auxiliary plate, it can be formed at the same time as the auxiliary plate is manufactured and can be easily manufactured. Moreover, the locking piece can be easily bent, and can be easily engaged with and disengaged from the locking portion when the transmission switching member is rotated.

It is a disassembled perspective view of the principal part of the shift apparatus of the automatic transmission of one embodiment of this invention. It is a perspective view of the principal part of the shift apparatus of an automatic transmission in the state where the change lever came to the parking range of the main gate. It is a side view which shows the positional relationship of the switching member main body and auxiliary | assistant plate in the state of FIG. It is a perspective view which shows the positional relationship of the switching member main body and change lever in the state of FIG. It is a perspective view of the principal part of the shift apparatus of an automatic transmission in the state where the change lever came to the subgate. It is a side view which shows the positional relationship of the switching member main body and auxiliary | assistant plate in the state of FIG. It is a perspective view which shows the positional relationship of the switching member main body and change lever in the state of FIG.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a main part of a shift device for an automatic transmission according to an embodiment of the present invention, and FIG. 2 is a perspective view of the shift device for an automatic transmission with a change lever in a parking range. . In the figure, the X direction indicates the front, and the Y direction indicates the rear. The Z direction indicates the left side, and the W direction indicates the right side.

  The shift device 1 for an automatic transmission according to this embodiment is for an automobile. As shown in FIGS. 1 and 2, a device main body 2 fixed to a vehicle body, a transmission switching member 3, a change device, and the like. A lever 4 and a gate plate 5 are provided.

  In this embodiment, as shown in FIGS. 3 and 4, the transmission switching member 3 includes a plate-shaped switching member main body 30, a lever holding portion 35 that holds the change lever 4, and the transmission switching member 3. Shaft portions 36a and 36b attached to the apparatus main body 2 are provided.

  A cable connecting portion 33 that is connected to one end of the cable 10 (shown in FIG. 1) is provided on the upper front side of the switching member main body 30. The other end of the cable 10 is connected to an automatic transmission (not shown) provided in the vehicle, and the transmission switching member 3 is connected to the automatic transmission via the cable 10.

  Further, a locking portion 34 for locking a locking piece 72 provided on a gate plate 5 described later is provided on the front side of the upper surface of the switching member main body 30. The locking portion 34 of this embodiment includes a locking recess 34a and a protruding wall 34b that protrudes upward from the upper surface of the switching member main body 30 on the front side thereof.

  In addition, a substantially rectangular connecting hole 32 is provided at a substantially front-rear center on the upper side of the switching member main body 30 so as to penetrate in the left-right direction (ZW direction) in the plate thickness direction.

  In this embodiment, the lever holding portion 35 is integrally formed with the switching member main body 30 on the right side (one side) of the switching member main body 30 on the W direction side in FIG.

  The lever holding portion 35 has a substantially spherical spherical housing portion 35b having an opening 35a on the upper side. The lever holding portion 35 includes a plurality of slits 35c, and the upper side of the lever holding portion 35 is divided into a plurality of small portions having elasticity by the slits 35c.

  As a result, the opening 35b is enlarged so that a spherical portion 42 of the change lever 4 (to be described later) can be pushed into the spherical storage portion 35b, and after being inserted, it can be returned to its original state and held rotatably. It has become.

  As shown in FIG. 4, the shaft portions 36a and 36b include a first shaft portion 36a and a second shaft portion 36b. The first shaft portion 36a is formed integrally with the switching member main body 30 at the lower end of the switching member main body 30, and is on the left side in the Z direction in the figure from the switching member main body 30 (the right side in FIG. 4, the other side). Projected to The second shaft portion 36b protrudes from the lever holding portion 35 on the right side in the W direction in the drawing.

  The first shaft portion 36a and the second shaft portion 36b have the same axis O1. Further, in this embodiment, the axis O1 is formed so as to pass through the center O2 of the spherical storage portion 35b.

  The first shaft portion 36a and the second shaft portion 36b are pivotally supported by the apparatus main body 2 so that the upper portion of the switching member main body 30 is moved back and forth about the axis O1 ( XY direction).

  As shown in FIGS. 1 and 4, the change lever 4 includes a lever shaft 41, a spherical portion 42 provided at the lower end of the lever shaft 41, and a connecting piece 43 provided at an intermediate portion in the vertical direction of the lever shaft 41. And.

  The lever shaft 41 is formed of a long cylindrical shape, and an operation gripping member (not shown) is attached to the tip portion on the upper end side, and the operation gripping member is gripped and operated by a driver.

  The spherical portion 42 is a portion to be held by the lever holding portion 35, and is formed of a spherical shape having a size capable of turning into the spherical storage portion 35 b of the lever holding portion 35.

  And this spherical part 42 is hold | maintained at the spherical storage part 35b so that the center may correspond to the center O2 of the spherical storage part 35b, and it can rotate to the periphery of the center O2. Thereby, the front-end | tip part of the change lever 4 can be rotated with respect to the switching member main body 30 in the front-back direction, the left-right direction (ZW direction), etc.

  The connecting piece 43 is formed of a quadrangular section that can enter the connecting hole 32 of the switching member main body 30 and is formed to protrude from the lever shaft 41 toward the switching member main body 30 by a predetermined length. .

  The connecting piece 43 configured in this manner is described above as the lever shaft 41 rotates in the left-right direction (ZW direction) around the spherical portion 42 inserted in the spherical storage portion 35b of the lever holding portion 35. The switching member main body 30 enters and exits the connecting hole 32.

  As shown in FIGS. 1 and 2, the gate plate 5 includes a plate-like plate body 6 and a plate-like auxiliary plate 7 disposed so as to be stacked on the upper side of the plate body 6. . The plate body 6 includes gates 8 and 9 for guiding the lever shaft 41.

  The gates 8 and 9 of this embodiment include a main gate 8 that guides the lever shaft 41 in the auto mode and a sub-gate 9 that guides the lever shaft 41 in the manual mode.

  The main gate 8 includes a parking (P) range 81, a reverse (R) range 82 communicating with the parking (P) range 81, a neutral (N) range 83 communicating with the reverse (R) range 82, and a neutral (N ) A drive (D) range 84 communicating with the range 83 is provided.

  The sub gate 9 communicates with the drive range 84 of the main gate 8 through the communication path 90. The sub-gate 9 is provided with a minus gate 91 and a plus gate 92.

  The plate body 6 of this embodiment is provided with a right side wall 61 and a left side wall 62 extending downward from the plate body 6. Then, these lower portions are fixed to the apparatus main body 2, whereby the plate main body 6 is fixed to the apparatus main body 2.

  The auxiliary plate 7 is a soft material that is softer than the plate body 6 when the lever shaft 41 collides with the lever shaft 41. It is composed of those that are less likely to generate collision noise. In this embodiment, the auxiliary plate 7 is made of a urethane-based elastomer.

  The auxiliary plate 7 includes a silencing gate 71 corresponding to the main gate 8 and the sub-gate 9. Although not shown, the silencing gate 71 is formed to be slightly narrower than the main gate 8 and the sub gate 9, and the auxiliary plate 7 protrudes from the inner peripheral edge of the main gate 8 and the sub gate 9. As a result, when the lever shaft 41 moves through the main gate 8 and the sub gate 9, the lever shaft 41 abuts against the side surface of the silencer gate 71 of the plate 7 so that a collision sound is hardly generated.

  The auxiliary plate 7 is provided with a locking piece 72 having elasticity as shown in FIG. The locking piece 72 of this embodiment is formed integrally with the auxiliary plate 7 and has a circular cross section protruding downward from the lower surface of the auxiliary plate 7 with a predetermined length.

  The auxiliary plate 7 configured as described above is fixed to the plate body 6 in a state of being stacked on the upper side of the plate body 6. Further, the locking piece 72 is passed through a hole (not shown) provided in the plate main body 6 at the time of the above-described lamination, and is disposed above the upper surface of the switching member main body 30.

  More specifically, the locking piece 72 disposed on the lower side of the plate body 6 through the hole of the plate body 6 has a lower end on the rear side on the upper surface of the switching member body 30 as shown in FIG. Is disposed at an upper position separated from the portion by a predetermined distance so as not to contact the portion when the switching member main body 30 is rotated.

  On the other hand, when the switching member main body 30 is rotated, the tip on the lower end side of the locking piece 72 is brought into contact with the protruding wall 34b.

  Next, the operation of the present invention will be described. When assembling the change lever 4 and the transmission switching member 3 to the apparatus main body 2, for example, the change lever 4 can be held by the transmission switching member 3 and the transmission switching member 3 can be assembled to the apparatus main body 2 in this state. .

  Therefore, it is not necessary to assemble the change lever 4 and the transmission switching member 3 separately to the apparatus main body 2 as in the prior art, and the assembling work can be easily performed in a short time.

  Further, after the assembly, the change lever 4 rotates around the center O2 of the spherical housing portion 35b of the transmission switching member 3, so that the position and movement of the change lever 4 with respect to the transmission switching member 3 can be made constant at all times. .

  Therefore, it is possible to easily position both the change lever and the transmission switching member with respect to each range position of the main gate and the sub gate, and it is possible to improve the positional accuracy of both with respect to each range position.

  When the lever shaft 41 of the change lever 4 is in the parking (P) range 81 of the main gate 8 (the state shown in FIG. 2), the connecting piece 43 of the change lever 4 is connected to the switching member main body 30 as shown in FIG. Are connected to each other.

  When the lever shaft 41 of the change lever 4 is moved from the parking (P) range 81 of the main gate 8 to the reverse (R) range 82 on the rear side, the connection state is maintained and the switching member main body 30 is changed. The lever 4 is pressed rearward by the connecting piece 43 and rotated rearward together with the lever shaft 41 to pull the cable 10 (see FIG. 1) to switch the automatic transmission to the reverse state.

  At this time, the center O2 of the spherical housing portion 35b of the transmission switching member 3 serving as the center of rotation of the change lever 4 and the axis O1 serving as the center of rotation of the switching member main body 30 coincide ( 4), all the force applied to the change lever 4 can be transmitted as a force for rotating the switching member body 30, and the switching member body 30 can be smoothly rotated.

  Similarly, when the lever shaft 41 of the change lever 4 is sequentially moved from the reverse range 82 to the neutral range 83 on the rear side and further from the neutral range 83 to the drive range 84 side, the above-mentioned connection state is maintained, and the switching member The main body 30 is pressed rearward by the connecting piece 43 of the change lever 4 and pivots rearward together with the lever shaft 41 to pull the cable 10 to switch the automatic transmission between the neutral state and the drive state.

  Further, when the lever shaft 41 of the change lever 4 comes to the drive range 84, the locking piece 72 of the switching member main body 30 and the protruding wall 34b come into contact with each other, and the protruding wall 34b moves the tip of the lower end side of the locking piece 72 rearward. Press to the side.

  As a result, the locking piece 72 is gradually bent into a curved shape, and the protruding wall 34 b passes through the locking piece 72 and causes the locking piece 72 to enter the locking recess 34. In a state in which the locking piece 72 enters the locking recess 34, the leading end surface of the locking piece 72 is in contact with almost the entire locking recess 34 as shown in FIG. 6.

  When the lever shaft 41 of the change lever 4 enters the right side subgate 9 from the drive range 84 through the communication path 90 as shown in FIG. 5, the connecting piece of the change lever 4 as shown in FIG. 43 comes out of the connection hole 32 of the switching member main body 30, and the connection between the change lever 4 and the switching member main body 30 is released.

  Therefore, in this disengaged state, the change lever 4 and the switching member main body 30 are not interlocked, and the automatic transmission is maintained in the drive state even when the change lever 4 moves the sub-gate 9 in the front-rear direction.

  Further, in this state, since the locking piece 72 of the gate plate 5 enters the locking recess 34 of the switching member main body 30, the switching member main body 30 cannot rotate and maintains its position. To do.

  In this embodiment, when the lever shaft 41 enters the communication path 90, it is detected that the manual mode is entered by a manual mode detecting means (not shown) provided in the apparatus main body 2. Further, when the lever shaft 41 is moved to the minus gate 91 of the sub-gate 9, it is detected by a detection means (not shown) provided in the apparatus main body 2, and based on the detection, a control unit provided in the apparatus main body 2 is detected. Shift down only once.

  On the other hand, when the lever shaft 41 is moved to the plus gate 92 of the sub-gate 9, it is detected by the detection means, and based on the detection, the control unit shifts up only once.

  Thereafter, when the lever shaft 41 of the change lever 4 is returned from the sub-gate 9 through the communication path 90 to the drive range 84, the connecting piece 43 of the change lever 4 enters the connecting hole 32 of the switching member body 30 again. The change lever 4 and the switching member main body 30 are connected again.

  In that case, since the switching member main body 30 is maintaining the position at the time of latching with the latching piece 72 and releasing connection, the coupling piece 43 and the coupling hole 32 are matched without being displaced, The connecting piece 43 easily enters the connecting hole 32, and can prevent the connecting piece 43 from hitting the peripheral portion of the connecting hole 32 and not entering.

  When the lever shaft 41 of the change lever 4 is moved from the drive range 84 of the main gate 8 to the neutral range 83, the switching member body 30 connected to the change lever 4 rotates to the front side opposite to the above. To do.

  Further, during the rotation, the locking piece 72 locked to the locking portion 34 is gradually bent in a curved shape, and the protruding wall 34 b passes through the locking piece 72. As a result, the locking between the locking portion 34 and the locking piece 72 is released.

  In the above embodiment, the locking plate 72 is provided on the gate plate 5, and the locking member 34 is provided on the switching member main body 30 to detachably lock the locking plate 72. It can change suitably not only in a thing. For example, the switching member main body 30 may be provided with the locking piece 72 and the gate plate 5 may be provided with the locking portion 34.

  Moreover, in the said embodiment, although the latching piece 72 is integrally formed with the auxiliary plate 7 softer than the plate main body 6, it is not restricted to the thing of this form, It can change suitably. For example, the plate main body 6 may be integrally formed with elasticity. However, if the locking piece 72 is formed integrally with the auxiliary plate 7 as in the above embodiment, the locking piece 72 can be easily bent as compared with the case where it is formed integrally with the plate body 6. It is preferable at the point which can make resistance at the time of engaging / disengaging to 34 small.

DESCRIPTION OF SYMBOLS 1 Shift device of automatic transmission 2 Device main body 3 Transmission switching member 4 Change lever 5 Gate plate 6 Plate main body 7 Auxiliary plate 8 Main gate 9 Sub gate 34 Locking portion 34a Locking recess 34b Projecting wall 72 Locking piece

Claims (2)

A gate plate having a main gate and a sub gate, a transmission switching member disposed on the lower side of the gate plate so as to be rotatable with respect to the gate plate, and connection / disconnection to / from the transmission switching member A change lever connected to the main gate, and moving the change lever from the drive range provided in the main gate to the sub-gate to release the connection between the change lever and the transmission switching member. A shift device for an automatic transmission that can be brought into a manual mode state, and that the change lever is returned to the drive range from its sub-gate so that both can be connected again to return to the auto mode state,
Either one of the transmission switching member and the gate plate is provided with an elastic locking piece formed integrally with the one so as to be manufactured at the same time when the one is manufactured ,
A locking portion that is detachably locked with the locking piece is provided on the other side,
The locking piece locks with the locking portion when the change lever comes into the drive range, and the change lever is in a range other than the drive range provided in the main gate from the drive range. A shift device for an automatic transmission, characterized in that it is configured to be unlocked from the locking portion when the transmission switching member is rotated as it is moved. The gate plate includes a plate body having the main gate and the sub gate, and an auxiliary plate stacked on the plate body,
The auxiliary plate includes a silencer gate corresponding to the main gate and the sub-gate and arranged so as to come into contact when the change lever moves the gate, and is made of a soft material softer than the plate main body. And
The locking piece is integrally protruded downward from the auxiliary plate so as to be manufactured at the same time as the auxiliary plate is manufactured ,
The locking portion is configured to be able to be engaged with and disengaged from a lower end of the locking piece on a part of an upper surface of the transmission switching member when the transmission switching member rotates. The shift device for an automatic transmission according to claim 1.

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