JP2018102584A - Vehicle seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat device capable of preventing the contact position of an ottoman with respect to a leg of an occupant from changing when the ottoman rotates. A seat device includes an ottoman device that supports an ottoman in front of a seat, and an ECU as a control device that controls the operation of the ottoman device. The ottoman device has a function of rotating the ottoman around a rotation axis provided on the front edge of the seat cushion and a function of expanding and contracting the ottoman extending in front of the seat. When the ECU controls the operation of the ottoman device to rotate the ottoman, the ECU interlocks with the rotation of the ottoman and rotates the ottoman in the rotation direction (deployment direction: step 103, storage direction: step 105). ), The ottoman is stretched (step 104) or contracted (step 106). [Selection diagram] FIG. 7

Description

  The present invention relates to a vehicle seat device.

  Conventionally, some vehicle seats include an ottoman device that supports an ottoman in front of the seat. For example, the ottoman device described in Patent Document 1 and Patent Document 2 includes a rotation function for rotating the ottoman around a rotation shaft provided at the front edge portion of the seat cushion, and an expansion / contraction mechanism for expanding and contracting the ottoman. Have. And thereby, the ottoman stored in the front edge portion of the seat cushion is expanded in front of the seat, and the ottoman can be stored again, and the ottoman extending in front of the seat is expanded and contracted. Is possible.

JP2015-171855A Japanese Patent No. 4635835

  However, in the configuration having the function of rotating the ottoman as in the above prior art, by rotating the ottoman in a state where the occupant's leg is placed, the contact position of the ottoman with the occupant's leg is changed. The ottoman is displaced in the longitudinal direction, that is, in the front-rear direction of the seat. And, because of this, there is a problem that the legs of the occupant placed on the ottoman are rubbed, the hem of the trousers is turned up, or the occupant's heel is caught on the tip of the ottoman. In addition, there was room for improvement.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vehicle in which the contact position of the ottoman against the occupant's leg is not changed when the ottoman rotates. An object of the present invention is to provide a sheet apparatus for use.

  A vehicle seat device that solves the above problems includes an ottoman device that supports an ottoman in front of a seat, and a control device that controls the operation of the ottoman device, and the ottoman device is provided at a front edge portion of a seat cushion. The ottoman can be rotated around a rotation axis provided, and the ottoman can be expanded and contracted. The control device controls the operation of the ottoman device to control the ottoman. In the case of turning, it is preferable that the ottoman is extended or contracted in accordance with the turning direction of the ottoman in conjunction with the turning of the ottoman.

  In other words, the pivot fulcrum of the leg mounted on the ottoman extending in front of the seat, that is, the knee of the occupant seated on the seat, is shifted upward from the pivot shaft of the ottoman provided at the front edge of the seat cushion. Placed in a different position. For this reason, the contact position of the ottoman with the occupant's leg that moves up and down while being placed on the rotating ottoman depends on the foot of the occupant's leg according to the direction of rotation of the ottoman. Try to move from side to knee, or from knee to foot. However, according to the said structure, the shift | offset | difference of the contact position accompanying the rotation of the ottoman can be correct | amended. Thus, the ottoman's contact position with the occupant's leg can be prevented from changing. As a result, it is possible to suppress the friction between the ottoman and the legs of the occupant, the skirt of the trousers, or the hook of the occupant on the heel.

  In the vehicular seat device that solves the above-described problem, in the case where the control device rotates the ottoman in a direction in which a leg portion of an occupant placed on the ottoman is lifted, the control device is interlocked with the rotation of the ottoman. It is preferred to stretch the ottoman.

  According to the above configuration, when the ottoman rotates in the direction in which the occupant's leg is lifted (deployment direction), it is possible to correct the displacement of the contact position that is about to move from the heel side of the occupant to the knee side. . Thereby, it is possible to suppress the rubbing between the rotating ottoman and the legs of the occupant and the hem of the pants.

  In the vehicle seat device that solves the above-described problem, the control device interlocks with the rotation of the ottoman when the ottoman rotates in a direction in which a leg portion of an occupant placed on the ottoman moves downward. Thus, it is preferable to contract the ottoman.

  According to the above configuration, when the ottoman rotates in the direction in which the occupant's leg moves downward (in the retracting direction), the displacement of the contact position that tries to move from the occupant's knee side to the toe side is corrected. Can do. Thus, it is possible to suppress the friction between the rotating ottoman and the occupant's legs, the occupant's hook, and the like.

  In the vehicle seat device that solves the above-described problem, the control device includes a maximum interlocking expansion / contraction amount holding unit that holds a maximum value of expansion / contraction amount when the ottoman expands / contracts in conjunction with rotation of the ottoman, and the ottoman When the amount of expansion / contraction of the ottoman reaches the maximum value, an interlocking expansion / contraction stop control unit that stops expansion / contraction of the ottoman interlocked with the rotation of the ottoman is preferably provided.

According to the said structure, the expansion / contraction amount of the said ottoman linked with the rotation of the ottoman can be optimized quickly with a simple structure.
In the vehicle seat device that solves the above-described problem, the control device includes a seating detection unit that detects an occupant seated on the seat, and when the ottoman is rotated while the occupant is seated on the seat, In conjunction with the rotation of the ottoman, the ottoman is preferably extended or contracted in accordance with the rotation direction of the ottoman.

  According to the said structure, the expansion / contraction control of the said ottoman linked with rotation of an ottoman more appropriately can be performed, and the contact position of the ottoman with respect to the passenger | crew's leg part can be prevented from changing.

  According to the present invention, when the ottoman rotates, the contact position of the ottoman with respect to the occupant's leg can be prevented from changing.

The top view of a vehicle. The schematic block diagram of the vehicle seat apparatus. (A)-(c) is operation | movement explanatory drawing (a: stored state, b: expansion | deployment (contraction) state, expansion | deployment (expansion) state) of an ottoman apparatus. Explanatory drawing which shows the terminal area | region set to the storage side of an ottoman. The time chart which shows the execution timing of the storage control of the ottoman in the auto return control, and the back movement control of the seat. Explanatory drawing which shows the movement of the contact position of an ottoman with respect to a passenger | crew's leg part accompanying rotation of an ottoman. The flowchart which shows the process sequence of the expansion-contraction control interlocked with rotation control of an ottoman. Explanatory drawing which shows another example of the expansion-contraction control linked with rotation control of an ottoman. Explanatory drawing which shows another example of the expansion-contraction control linked with rotation control of an ottoman. The flowchart which shows the process sequence of another example of the expansion-contraction control interlocked with the rotation control of an ottoman. The flowchart which shows the process sequence of another example of the expansion-contraction control interlocked with the rotation control of an ottoman. The flowchart which shows the process sequence of another example of the expansion-contraction control interlocked with the rotation control of an ottoman. The flowchart which shows the process sequence of another example of the expansion-contraction control interlocked with the rotation control of an ottoman.

Hereinafter, an embodiment of a vehicle seat device will be described with reference to the drawings.
As shown in FIG. 1, the vehicle 1 of the present embodiment has a configuration as a so-called four-door sedan in which two rows of front and rear seats 10 are arranged in the vehicle interior. That is, the vehicle 1 includes front seats 10 a and 10 b that constitute the driver seat 11 and the passenger seat 12, and rear seats 10 c and 10 d that constitute the rear seats 13 and 14. And this vehicle is provided with the four doors 15 (15a-15d) provided in the side of each of these sheet | seats 10 (10a-10d).

  As shown in FIG. 2, each seat 10 includes a seat cushion 22, a seat back 23 provided to be tiltable with respect to a rear end portion of the seat cushion 22, and a headrest provided at the upper end of the seat back 23. 24. Further, each seat 10 of the present embodiment is provided with an ottoman 25 on which a occupant seated on the seat 10 places a leg portion on a front edge portion 22f of the seat cushion 22. And each sheet | seat 10 of this embodiment is provided with the some actuator 30 (30a-30d) which drives each these sheet | seat element X (22-25), respectively.

  More specifically, each seat 10 of the present embodiment includes a seat slide actuator 30a that can adjust the front and rear position of the seat 10 (seat cushion 22), and a seat reclining actuator that can adjust the tilt angle of the seat back 23. 30b is provided. Further, in each of these seats 10, a headrest actuator 30c capable of adjusting the arrangement of the headrest 24 and an ottoman 25 stored in the front edge portion 22f of the seat cushion 22 are deployed in front of the seat 10, and An ottoman actuator 30d that can store the ottoman 25 again is provided. Further, the operation of each of the actuators 30 (30a to 30d) is controlled by the ECU 31. And in the vehicle 1 of this embodiment, the seat apparatus 40 which can adjust the operation position about each seat element X (22-25) of the seat | sheet 10 by this is formed.

  Specifically, the ECU 31 of the present embodiment detects the operation position information Ix (Ia to Ib) for each of the seat elements X driven by the actuators 30. Furthermore, an operation input signal S <b> 1 indicating the generation of an operation input to the operation input unit 41 provided on each seat 10 is input to the ECU 31 of the present embodiment. That is, the ECU 31 detects an operation request for each seat element X by the occupant based on the operation input signal S1. Then, the ECU 31 of the present embodiment generates a control signal Smc (Smc1 to Smc4) for a motor (not shown) serving as a drive source in order to change the operation position of each seat element X based on the detected operation request. By outputting, the operation of the actuator 30 (30a to 30d) corresponding to each sheet element X is controlled.

  Further, the ECU 31 of the present embodiment includes an output signal Sdoc of an door sensor (curtain switch) provided in each door 15 of the vehicle 1, an ignition signal Sig, a door lock signal Sdl, and a parking brake via the in-vehicle network 42. The control signal of the vehicle 1 and the vehicle state quantity such as the signal Spbk or the vehicle speed V are input. Then, the ECU 31 of the present embodiment automatically changes the operating position of each seat element X based on these control signals and the vehicle state quantity, for example, when the occupant gets on and off the vehicle 1. have.

  For example, when the ignition signal Sig is in an off state, the ECU 31 of the present embodiment, when a specific start condition is satisfied, such as when the door 15 located on the side of the seat 10 opens, Each seat element X of the seat 10 is moved to an operating position (retracted position) where a seated passenger can easily get off (automatic return control).

  Specifically, the ECU 31 of the present embodiment moves the slide position of the seat 10 rearward (Pa = Pa1) when the seat 10 is in the slide position on the front side of the vehicle in the auto return control. . Further, when the seat back 23 is tilted toward the vehicle rear side, the seat back 23 is controlled to stand up (for example, neutral position, Pb = Pb0). When the ottoman 25 is in the unfolded state, the ottoman 25 is stored in the front edge portion of the seat cushion 22 (Pd = Pd1).

  Further, at this time, when the ECU 31 executes both the rearward movement control of the seat 10 (seat cushion 22) and the storage control of the ottoman 25, the ECU31 of the present embodiment precedes the rearward movement control of the seat 10. The storage control of the ottoman 25 is started. Thus, when storing the ottoman 25, between the ottoman 25 and the front edge portion 22f of the seat cushion 22, or the floor portion 45 of the vehicle 1 and the slide rail 46 provided below the seat 10. It is comprised so that a foreign material may not be inserted | pinched.

  Specifically, as shown in FIGS. 3A to 3C, each seat 10 of the present embodiment is provided with an ottoman device 50 that supports the ottoman 25 in front of the seat 10. Specifically, the ottoman device 50 is rotatable relative to the rotation link 51 and the rotation link 51 that rotates around the rotation shaft 51x provided on the front edge portion 22f of the seat cushion 22. And a provided slide member 52. Further, the ottoman actuator 30d (see FIG. 2) of the present embodiment drives the rotating link 51 and the slide member 52 based on the driving forces of two independent dedicated motors (not shown). That is, the ottoman actuator 30d of this embodiment constitutes the ottoman device 50 together with the rotating link 51 and the slide member 52. In the seat 10 according to the present embodiment, the rotation link 51 and the slide member 52 are arranged inside the seat skin 10x constituting the ottoman 25.

  That is, the ottoman device 50 of this embodiment is controlled by the ECU 31 so that the ottoman actuator 30d rotates the rotation link 51 in the clockwise direction in FIG. Thus, the ottoman 25 is deployed in front of the seat 10.

  In addition, the ottoman device 50 is controlled by the ECU 31 so that the ottoman actuator 30d rotates the rotation link 51 in the counterclockwise direction in FIG. As a result, the ottoman 25 is stored in the front edge portion 22 f of the seat cushion 22.

  Furthermore, in the ottoman device 50 of the present embodiment, the Ottoman actuator 30 d slides the slide member 52 with respect to the rotation link 51 by being controlled by the ECU 31. Specifically, in the state where the ottoman 25 is deployed in front of the seat 10, the ottoman device 50 has its slide member 52 integrally formed with the seat skin 10 x that arranges the slide member 52 on the inside thereof. 51 is moved in the front-rear direction. Thus, the ottoman device 50 of the present embodiment allows the design surface 25s of the ottoman 25 that abuts on the legs of the occupant to move in the front-rear direction, from the front edge portion 22f of the seat cushion 22 to the front of the vehicle. The ottoman 25 extending toward and away is configured to expand and contract.

  As shown in FIG. 4, when the ECU 31 of the present embodiment stores the ottoman 25 in the front edge portion 22f of the seat cushion 22, the starting point of the terminal area α on the storage operation side that makes the ottoman 25 difficult to insert foreign objects. The position Pd0 is held in the storage area 37 (see FIG. 2). When both the backward movement control of the seat 10 and the storage control of the ottoman 25 are executed as described above, when the ottoman 25 that has started the storage operation reaches the terminal area α, the seat 10 The rear movement control is started.

  Specifically, as shown in FIG. 5, the ECU 31 of the present embodiment configures the ottoman device 50 to store the ottoman 25 first when the automatic return control start condition is satisfied (time t1). Control of the ottoman actuator 30d is started (storage control). Next, when the ottoman 25 reaches the terminal area α on the storage operation side (time t2, start position Pd0), the ECU 31 then moves the seat 10 supported on the slide rail 46 to move backward. Control of the seat slide actuator 30a constituting the slide device 55 is started (backward movement control). At this time, the ECU 31 of this embodiment also starts the control of the seat reclining actuator 30b at the same time to return the seat back 23 to the neutral position (neutral return control). Then, the ECU 31 of the present embodiment thereafter reaches the storage position Pd1 (time t3), the seat back 23 returns to the neutral position Pb0 (time t4), and the seat 10 reaches the rear end position Pa1. After confirming (time t5), the automatic return control is terminated.

  Note that the ECU 31 of the present embodiment performs the expansion control or storage control of the ottoman 25 when executing both the expansion control or storage control of the ottoman 25 and the forward movement control of moving the slide position of the seat 10 forward. Is completed, the forward movement control of the seat 10 is started. Thus, the ottoman 25 is configured not to interfere with an obstacle (such as the front seat 10) positioned in front of the seat 10.

  As shown in FIG. 2, in the vehicle 1 of the present embodiment, each seat 10 has a pressure-sensitive seating sensor 60 (60a to 60d) on the inner side of the seat skin 10x constituting the seating surface 22s of the seat cushion 22. ) Is provided. In the present embodiment, for example, a pressure sensitive switch such as a membrane switch is used as the seating sensor 60. In other words, the output signals Smbs (Smbs 1 to Smbs 4) of these seating sensors 60 are turned on / off based on the seat load applied to the seat cushion 22. The ECU 31 according to the present embodiment is configured to detect an occupant seated on each seat 10 based on the output signal Smbs of each seating sensor 60.

  The ECU 31 according to the present embodiment executes a warning output indicating that a seat belt (not shown) provided on the seat 10 should be attached to an occupant seated on each seat 10 based on the result of the occupant detection. . In this embodiment, this warning output is performed using a warning device 65 such as a speaker or a warning lamp. Further, the ECU 31 of the present embodiment outputs an occupant detection signal Scd indicating that an occupant seated on the seat 10 is detected to the in-vehicle network 42. And in the vehicle 1 of this embodiment, the airbag deployment control etc. which are not shown in figure are performed based on this passenger | crew detection signal Scd.

(Ottoman rotation expansion and contraction interlocking control)
Next, the rotation extension / contraction interlocking control of the ottoman 25 executed by the ECU 31 of the present embodiment will be described.

  As shown in FIG. 6, the ottoman 25 of the present embodiment rotates around a rotation shaft 25 x (a rotation shaft 51 x of the rotation link 51) provided at the front edge portion 22 f of the seat cushion 22. As the ottoman 25 rotates, the legs 71 of the occupant 70 seated on the seat 10 also move up and down while being placed on the ottoman 25.

  However, at this time, the knee 72 of the occupant 70 serving as the rotation fulcrum 71x of the leg 71 placed on the ottoman 25 is above the seating surface 22s of the seat cushion 22, that is, the rotation axis of the ottoman 25. It is arranged at a position shifted upward from 25x. For this reason, as the ottoman 25 rotates, the contact position Q of the ottoman 25 with respect to the leg 71 of the occupant 70 moves. As a result, problems occur such as skin rubbing between the ottoman 25 and the leg 71 of the occupant 70, skirt turning of the pants, or the tip 25a of the ottoman 25 being caught on the occupant's heel 73.

  For example, as in the example shown in FIG. 6, the leg portion 71 of the occupant 70 is placed on the ottoman 25 by rotating the ottoman 25 in the unfolding direction (clockwise direction in the figure). Lifted upwards in contact). In this case, the contact position Q of the ottoman 25 with respect to the leg portion 71 of the occupant 70 moves from the toe 74 side to the knee 72 side in the leg portion 71 of the occupant 70 as the ottoman 25 rotates. (Q → Q ').

  On the other hand, when the ottoman 25 is rotated in the retracted direction (clockwise direction in FIG. 6), the leg portion 71 of the occupant 70 moves downward while being placed on the ottoman 25. In this case, the contact position Q (Q ′) of the ottoman 25 with respect to the leg 71 of the occupant 70 moves from the knee 72 side to the toe 74 side of the leg 71 of the occupant 70 as the ottoman 25 rotates. It will move (Q '→ Q).

  In consideration of this point, the ECU 31 according to the present embodiment detects an operation request for rotating the ottoman 25 based on the operation input of the occupant to the operation input unit 41 (see FIG. 2), that is, a manual rotation operation of the ottoman 25. Sometimes, the ottoman 25 is expanded or contracted in accordance with the rotation direction of the ottoman 25 simultaneously with the rotation of the ottoman 25. Thus, when the ottoman 25 is rotated, the contact position Q of the ottoman 25 with respect to the leg portion 71 of the occupant 70 is prevented from changing.

  More specifically, as shown in the flowchart of FIG. 7, when the ECU 31 of the present embodiment detects a rotation request of the ottoman 25 by the occupant 70 (step 101: YES), the rotation direction is the deployment direction, that is, the ottoman. It is determined whether or not the ottoman 25 is rotated in the direction in which the leg portion 71 of the occupant 70 placed on the passenger 25 is lifted (step 102). Then, when the rotation direction of the ottoman 25 indicated in the rotation request is the deployment direction (step 102: YES), in conjunction with the rotation control (step 103) for driving the ottoman 25 in the deployment direction. Then, the expansion / contraction control for driving the ottoman 25 in the extending direction is executed (step 104).

  In step 102, the ECU 31 moves the ottoman 25 in the direction in which the rotation direction of the ottoman 25 indicated in the rotation request is in the retracted direction, that is, in the direction in which the leg 71 of the occupant 70 placed on the ottoman 25 moves downward. If it is to be rotated (step 102: NO), rotation control for driving the ottoman 25 in the retracted direction is executed (step 105). Then, in conjunction with the rotation control in the retracting direction, expansion / contraction control for driving the ottoman 25 in the contracting direction is executed (step 106).

  While the operation input signal S1 indicating the rotation request of the ottoman 25 is detected in this manner (step 101: YES), the ECU 31 of the present embodiment performs the above-described steps 103, 103 according to the rotation direction of the ottoman 25. 104 or any one of the above steps 105 and 105 is repeatedly executed. That is, one of the expansion control linked to the rotation control in the deploying direction of the ottoman 25 and the contraction control linked to the rotation control in the retracting direction are executed. Note that the ECU 31 of the present embodiment rotates or expands / contracts the ottoman 25 at a substantially constant speed. Such a rotation request of the ottoman 25 is input, for example, by so-called long pressing an operation switch (not shown) provided in the operation input unit 41. Then, when the rotation request of the ottoman 25 is interrupted (step 101: NO), the ECU 31 of the present embodiment ends the execution of the expansion / contraction control linked to the rotation control of the ottoman 25.

As described above, according to the present embodiment, the following effects can be obtained.
(1) The seat device 40 includes an ottoman device 50 that supports the ottoman 25 in front of the seat 10, and an ECU 31 as a control device that controls the operation of the ottoman device 50. The ottoman device 50 has a function of rotating the ottoman 25 around the rotation shaft 25x provided on the front edge portion 22f of the seat cushion 22, and a function of extending and contracting the ottoman 25 extending forward of the seat 10. When the ECU 31 controls the operation of the ottoman device 50 and rotates the ottoman 25 in a direction in which the leg portion 71 of the occupant 70 placed on the ottoman 25 is lifted (deployment direction), the ottoman 25 The ottoman 25 is extended in conjunction with the rotation of.

  That is, the pivot fulcrum 71x of the leg 71 placed on the ottoman 25 extending in front of the seat 10, that is, the knee 72 of the occupant 70 is pivoted by the ottoman 25 provided at the front edge 22f of the seat cushion 22. It arrange | positions in the position shifted | deviated upward from the axis | shaft 25x. Therefore, the contact position Q of the ottoman 25 with respect to the leg portion 71 of the occupant 70 lifted upward while being placed on the rotating ottoman 25 is the leg portion of the occupant 70 according to the rotation of the ottoman 25. 71 to move from the toe 74 side to the knee 72 side. However, according to the above configuration, it is possible to correct the deviation of the contact position Q caused by the rotation of the ottoman 25 in the unfolding direction (see FIG. 6, the positional deviation amount β). Thus, the contact position Q of the ottoman 25 with respect to the leg 71 of the occupant 70 can be prevented from changing. As a result, it is possible to suppress the rubbing between the ottoman 25 and the leg portion 71 of the occupant 70 and the hem of the pants.

  (2) When the ECU 31 rotates the ottoman 25 in the direction in which the leg portion 71 of the occupant 70 placed on the ottoman 25 moves downward (in the retracting direction), the ECU 31 operates in conjunction with the rotation of the ottoman 25. The ottoman 25 is contracted.

  That is, the contact position Q of the ottoman 25 with respect to the leg 71 of the occupant 70 moving downward while being placed on the rotating ottoman 25 is the knee in the leg 71 of the occupant 70 according to the rotation of the ottoman 25. Trying to move from the 72 side to the toe 74 side. However, according to the above configuration, it is possible to correct the deviation of the contact position Q caused by the rotation of the ottoman 25 in the storage direction. Thus, the contact position Q of the ottoman 25 with respect to the leg 71 of the occupant 70 can be prevented from changing. As a result, it is possible to suppress the friction between the ottoman 25 and the leg 71 of the occupant 70, the hooking of the occupant 70 on the collar 73, and the like.

  (3) The ottoman device 50 includes a rotation link 51 that rotates around a rotation shaft 51 x provided at the front edge of the seat cushion 22, and a slide that can be moved relative to the rotation link 51. And a member 52. Further, the slide member 52 moves in the front-rear direction on the rotation link 51 integrally with the seat cover 10x that arranges the slide member 52 inside. As a result, the ottoman 25 expands and contracts with the back-and-forth movement of the design surface 25s contacting the leg portion 71 of the occupant 70.

  By applying the above (1) and (2) to such a configuration, the displacement of the contact position Q of the ottoman 25 with respect to the leg portion 71 of the occupant 70 accompanying the rotation of the ottoman 25 is more effectively corrected. be able to.

In addition, you may change the said embodiment as follows.
The configuration of the ottoman device 50 may be arbitrarily changed. For example, as long as the ottoman 25 supported in front of the seat 10 can be rotated and can be expanded and contracted, the ottoman 25 is not necessarily provided with the rotation link 51 and the slide member 52 as in the above embodiment. .

  In the above embodiment, the ECU 31 rotates or expands / contracts the ottoman 25 at a substantially constant speed during expansion / contraction control linked to the rotation control of the ottoman 25. However, the present invention is not limited to this, and a configuration may be adopted in which the expansion and contraction speed linked to the rotation of the ottoman 25 is suppressed when the movement starts.

  For example, as shown in FIG. 8, when a rotation request of the ottoman 25 is detected, first, the duty D of a motor (not shown) serving as a drive source for expanding and contracting the ottoman 25 is set to a predetermined time T1 and a low value (D1). (D = D1). Then, after a predetermined time T1, the motor duty D is changed to a value (D2) higher than the initial value (D1) (D = D2> D1), thereby increasing the expansion / contraction speed of the ottoman 25. The configuration should be adopted (stretching speed: low → high). By adopting such a configuration, it is possible to realize a good operation feeling.

  Further, for example, in the form of the control map MP as shown in FIG. 9, the reference length L0 of the ottoman 25 corresponding to the rotational position (deployment angle) Pd of the ottoman 25 is held in the storage area 37 (FIG. 2). reference). And at the time of the expansion / contraction control interlocked with the rotation control of the ottoman 25, it is good also as a structure which expands / contracts the ottoman 25 so that the length L of the ottoman 25 may become this reference | standard length L0.

  Further, the maximum value of the expansion / contraction amount ΔL when the ottoman 25 is expanded / contracted in conjunction with the rotation of the ottoman 25, that is, the maximum interlocking expansion / contraction amount ΔLmax is held in the storage area 37 (see FIG. 2). And when the expansion / contraction amount ΔL of the ottoman 25 reaches the maximum interlocking expansion / contraction amount ΔLmax, the expansion / contraction of the ottoman 25 interlocked with the rotation of the ottoman 25 may be stopped.

  For example, as shown in the flowchart of FIG. 10, during the rotation control of the ottoman 25 (steps 203 and 206), it is determined whether or not the expansion / contraction amount ΔL of the ottoman 25 has reached the maximum interlocking expansion / contraction amount ΔLmax (step 204, 207). When the expansion amount ΔL of the ottoman 25 reaches the maximum interlocking expansion / contraction amount ΔLmax (ΔL ≧ ΔLmax, steps 204, 207: YES), the rotation control of the ottoman 25 (steps 205, 208) is not executed. It is good to do. 10 are the same as steps 101 to 103, steps 104, 105, and step 106 in FIG. Thereby, the expansion / contraction amount ΔL of the ottoman 25 can be quickly optimized with a simple configuration.

  -Also, as shown in FIG. 11, the passenger | crew detection determination using the seating sensor 60 (refer FIG. 2) is performed (step 301). When an occupant seated on the seat 10 is detected (step 302: YES), the expansion / contraction control of the ottoman 25 in conjunction with the rotation of the ottoman 25 is executed (rotation expansion / contraction interlocking control, step 303). When not detected (step 302: NO), only the rotation control of the ottoman 25 may be executed (step 304).

  By adopting such a configuration, the expansion / contraction control of the ottoman 25 in conjunction with the rotation of the ottoman 25 is executed more appropriately, and the contact position Q of the ottoman 25 with respect to the leg 71 of the occupant 70 does not change. Can be. The occupant detection determination method may be arbitrarily changed, for example, using analysis of a captured image by a camera.

  Furthermore, as shown in FIG. 12, when the ottoman 25 is rotated in the direction in which the leg portion 71 of the occupant 70 placed on the ottoman 25 moves downward, that is, in the retracted direction (step 405), the ottoman 25 A hook detection determination is performed to determine whether or not the heel 73 of the occupant 70 is hooked with respect to the tip 25a (step 406). If it is determined that the heel 73 of the occupant 70 is caught on the tip 25a of the ottoman 25 (step 407: YES), the contraction control of the ottoman 25 is executed in conjunction with the rotation of the ottoman 25. It is good also as a structure to perform (step 408). And thereby, the catch of the front-end | tip 25a of the ottoman 25 with respect to the collar 73 of the passenger | crew 70 can be eliminated.

  12 are the same as steps 101 to 105 in FIG. 7. The hook detection determination in step 406 is implemented by, for example, monitoring a change in motor current that is a driving source of the ottoman actuator 30d (increase in driving load) or providing a pressure sensor at the tip 25a of the ottoman 25. Can be

  As shown in FIG. 13, when the ottoman 25 is similarly rotated in the retracted direction (step 505), the legs 71 (the ridge 73 and the toe 74) of the occupant 70 placed on the ottoman 25 are Landing detection determination is performed as to whether or not the floor portion 45 of the vehicle 1 has been touched (landed) (step 506). If it is determined that the leg 71 of the occupant 70 has landed on the floor 45 of the vehicle 1 (step 507: YES), the contraction control of the ottoman 25 in conjunction with the rotation of the ottoman 25 (step 508). It is good also as a structure which does not perform, ie, stops.

  That is, after landing on the floor 45 of the vehicle 1, the leg 71 of the occupant 70 is separated from the ottoman 25. Therefore, by adopting such a configuration, the contraction control of the ottoman 25 interlocked with the rotation of the ottoman 25 can be appropriately terminated. 12 are the same as steps 101 to 105 in FIG. 7. The leg landing detection determination in step 506 can be realized, for example, by monitoring a change in motor current that serves as a drive source of the ottoman actuator 30d (reduction of drive load).

  In the above embodiment, the ECU 31 as the control device functions as the rotation control unit 80a that rotates the ottoman 25 and the expansion / contraction control unit 80b that expands and contracts the ottoman 25. In another example, the ECU 31 includes a maximum interlocking expansion / contraction amount holding unit 80c that retains the maximum value of the expansion / contraction amount ΔL when the ottoman 25 is expanded / contracted in conjunction with the rotation of the ottoman 25, and the maximum interlocking expansion / contraction amount ΔLmax. When reaching the above, it functions as an interlocking expansion / contraction stop control unit 80d for stopping the expansion / contraction of the ottoman 25 interlocked with the rotation of the ottoman 25. Further, the ECU 31 detects a occupant seated on the seat 10, a seating detection unit 80 e, a reference length holding unit 80 f that holds the reference length L 0 of the ottoman 25 according to the rotational position Pd of the ottoman 25, and the ottoman 25. It functions as a hook detection unit 80g that detects that the heel 73 of the occupant 70 is hooked with respect to the tip 25a. And ECU31 decided to function as the landing detection part 80h which detects that the leg part 71 of the passenger | crew 70 contacted the floor part 45 of the vehicle 1. FIG. However, the configuration is not limited thereto, and a configuration in which these function control units are distributed among a plurality of information processing apparatuses may be employed.

Next, technical ideas that can be grasped from the above embodiments will be described together with effects.
(A) The vehicular seat device is characterized in that the ottoman expands and contracts with a back-and-forth movement of a design surface that comes into contact with a leg portion of an occupant. By applying to such a configuration, it is possible to more effectively correct the deviation of the contact position of the ottoman against the occupant's leg caused by the rotation of the ottoman.

  (B) The control device includes a reference length holding unit that holds a reference length of the ottoman according to the rotation position of the ottoman, and the ottoman is adjusted so that the length of the ottoman becomes the reference length. A vehicle seat device characterized by extending and contracting.

  (C) In the case where the control device rotates the ottoman in a direction in which a leg portion of the occupant placed on the ottoman moves downward, the occupant's heel is caught on the tip of the ottoman. For a vehicle, comprising a hook detection unit for detecting the presence of the vehicle, wherein the ottoman is contracted in conjunction with the rotation of the ottoman when it is detected that the occupant's heel is caught Sheet device. Thereby, the ottoman's front-end | tip catch with respect to the passenger | crew's heel can be eliminated.

  (D) The control device detects that the occupant's leg is in contact with the floor when the ottoman is rotated in a direction in which the occupant's leg placed on the ottoman moves downward. A detection unit, and an interlocked expansion / contraction stop control unit that stops expansion / contraction of the ottoman interlocked with the rotation of the ottoman when it is detected that the legs of the occupant are in contact with the floor. A vehicle seat device.

  That is, after landing on the floor of the vehicle, the occupant's legs are separated from the ottoman. Therefore, by adopting such a configuration, the contraction control of the ottoman interlocked with the rotation of the ottoman can be appropriately terminated.

  (E) an ottoman device that supports the ottoman in front of the seat, a seat slide device that can adjust the slide position of the seat, and a control device that controls the operation of the ottoman device and the seat slide device, The ottoman device deploys the ottoman forward of the seat by rotating the ottoman around a rotation shaft provided at a front edge portion of the seat cushion, and the ottoman on the front edge portion of the seat cushion. The control device stores the ottoman by controlling the operation of the ottoman device, and controls the operation of the seat slide device to move the slide position of the seat backward. Starts the storage control of the ottoman prior to the rearward movement control of the seat, and The man starts backward movement control of the sheet at the time it reaches the terminal region of the storage operation side, the vehicle seat apparatus according to claim.

  According to the above configuration, when storing the ottoman, the ottoman and the front edge portion of the seat cushion, or the floor portion of the vehicle, and the slide rail provided below the seat do not sandwich foreign matter, The rearward movement control of the seat, which is executed together with the ottoman storage control, can be quickly completed.

  (F) The control device controls the operation of the ottoman device to deploy or store the ottoman, and controls the operation of the seat slide device to move the seat slide position forward. The vehicle seat device, wherein the seat forward movement control is started after the ottoman deployment control or storage control is completed. Thus, the ottoman can be prevented from interfering with an obstacle (such as a front seat) positioned in front of the seat.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 10 ... Seat, 10x ... Seat skin, 22 ... Seat cushion, 22f ... Front edge part, 22s ... Seating surface, 23 ... Seat back, 24 ... Headrest, 25 ... Ottoman, 25a ... Tip, 25s ... Design surface , 25x ... rotating shaft, 30 ... actuator, 30a ... seat slide actuator (seat slide device), 30b ... seat reclining actuator, 30c ... headrest actuator, 30d ... ottoman actuator (ottoman device), 31 ... ECU (control device), 37 ... Storage area, 40 ... Seat device, 41 ... Operation input section, 45 ... Floor portion, 46 ... Slide rail (sheet slide device), 50 ... Ottoman device, 51 ... Rotating link, 51x ... Rotating shaft, 52 ... Slide member, 55 ... seat slide device, 60 ... seat seat 65, warning device, 70 ... occupant, 71 ... leg, 71x ... rotation fulcrum, 72 ... knee, 73 ... heel, 74 ... toe, 80a ... rotation control unit, 80b ... expansion / contraction control unit, 80c ... Maximum interlocking expansion / contraction amount holding unit, 80d ... interlocking expansion / contraction stop control unit, 80e ... seating detection unit, 80f ... reference length holding unit, 80g ... catch detection unit, 80h ... landing detection unit, X ... sheet element, Ix (Ia ~ Id) ... motion position information, S1 ... operation input signal, Q, Q '... contact position, β ... position displacement amount, L ... length, L0 ... reference length, MP ... control map, ΔL ... expansion / contraction amount, ΔLmax ... maximum interlocking expansion / contraction amount, α ... terminal area, Pa1 ... rear end position, Pb0 ... neutral position, Pd ... rotation position, Pd0 ... start position, Pd1 ... storage position, D ... duty, Scd ... occupant detection signal, Sdl ... Door lock signal, Sig ... Ignition signal, S c ... control signal, Sdoc, Smbs ... output signal, Spbk ... parking brake signal, T1 ... predetermined time, V ... vehicle speed.

Claims (5)

An ottoman device that supports the ottoman in front of the seat;
A control device for controlling the operation of the ottoman device,
The ottoman device is capable of rotating the ottoman around a rotation shaft provided at a front edge portion of a seat cushion, and can extend and contract the ottoman,
When the control device controls the operation of the ottoman device to rotate the ottoman, the control device extends or contracts the ottoman according to the rotation direction of the ottoman in conjunction with the rotation of the ottoman. Vehicle seat device. The vehicle seat device according to claim 1,
The control device, when rotating the ottoman in a direction in which a leg portion of an occupant placed on the ottoman is lifted, extends the ottoman in conjunction with the rotation of the ottoman. Vehicle seat device. In the vehicle seat device according to claim 1 or 2,
The control device, when rotating the ottoman in a direction in which a leg portion of an occupant placed on the ottoman moves downward, contracts the ottoman in conjunction with the rotation of the ottoman. A vehicle seat device. In the vehicle seat device according to any one of claims 1 to 3,
The controller is
A maximum interlocking expansion / contraction amount holding unit that holds a maximum value of the expansion / contraction amount when the ottoman is expanded / contracted in conjunction with the rotation of the ottoman;
When the amount of expansion / contraction of the ottoman reaches the maximum value, an interlocking expansion / contraction stop control unit that stops expansion / contraction of the ottoman interlocking with the rotation of the ottoman,
A vehicle seat device. In the vehicle seat device according to any one of claims 1 to 4,
The control device includes a seating detection unit that detects an occupant seated on the seat,
When the ottoman is rotated while an occupant is seated on the seat, the ottoman is extended or contracted in accordance with the rotation direction of the ottoman in conjunction with the rotation of the ottoman. Vehicle seat device.

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