JP2009241768A - Seat structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance convenience of an occupant while avoiding interference of an armrest and a vehicle body. <P>SOLUTION: The seat structure for a vehicle is provided with: a seat 2 provided so as to be approached to a sidewall part 4a of a vehicle body 4 and having a seat back 2b and an armrest 2c supported turnably to an outer side in a vehicle width direction of the seat back 2b; a seat inclination part 30 for inclining down the seat back 2b in a longitudinal direction of the vehicle A; a projection part 11 provided on the sidewall part 4a of the vehicle body 4 so as to be projected to an inner side in a vehicle width direction than an end part 2c'' on an outer side in a vehicle width direction of the armrest 2c on a front side in a longitudinal direction of the vehicle A of the armrest 2c; and an avoidance part 40 for avoiding the armrest 2c to a lower side in a vertical direction such that the armrest 2c does not interfere with the projection part 11 when the seat back 2b is inclined down to a front side in a longitudinal direction of the vehicle A by a seat inclination part 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat structure.

As a seat storage structure for a vehicle, Patent Document 1 discloses that one end of a wire is connected to a link that protrudes from a rear end portion of an armrest body when the seat back is tilted forward, and the other end of the wire is connected to a base side of a reclining mechanism. A technique is disclosed in which the armrest body is automatically rotated from the use position to the storage position by being pulled when the seatback is tilted forward, and is locked by the lock mechanism at the storage position. Further, in Patent Document 2, a link made of a rigid material is connected between the rear position of the reclining device and the rear position of the mounting bolt of the armrest attached to the side surface of the back cushion, and the armrest is connected to the unequal side four-joint link. The four-joint link mechanism is deformed as the back cushion is tilted forward, and the rear part of the armrest is moved downward in a circular arc by the restriction of the link. A technique for reversing upward and retracting to the side of the back cushion is disclosed.
Japanese Utility Model Publication No. 58-89437 Japanese Utility Model Publication No. 5-40358

  However, the techniques disclosed in Patent Documents 1 and 2 connect the armrest to a part of the seat by a link mechanism, and store the armrest itself along the side surface of the seatback in conjunction with the forward tilting operation of the seatback. Therefore, when the armrest still interferes with a part of the vehicle body side even at the storage position, the tip of the armrest needs to protrude further toward the back of the seat back than the storage position. For this reason, since the armrest protrudes into the vehicle interior space, the vehicle interior space cannot be used effectively, and the convenience of the passenger may be deteriorated.

  Accordingly, an object of the present invention is to improve passenger convenience while avoiding interference between an armrest and a vehicle body.

  In the present invention, a seat provided in the vicinity of the side wall of the vehicle body and having a seat back and an armrest that is rotatably supported on the outer side in the vehicle width direction of the seat back; A tilting means for tilting in the front-rear direction; and a front side of the armrest in the front-rear direction of the vehicle, and projecting inward in the vehicle width direction from an end of the armrest on the outer side in the vehicle width direction. And a avoiding means for avoiding the armrest vertically downward so that the armrest does not interfere with the protrusion when the seatback is tilted forward in the front-rear direction of the vehicle by the tilting means. A vehicle seat structure is provided.

  According to the present invention, when the seatback is tilted forward in the front-rear direction of the vehicle by the tilting means, the armrest is avoided in the up-down direction, so that interference between the armrest and the protrusion is reliably avoided. However, the large armrest can be provided, and the convenience of the passenger can be improved.

  In the present invention, the armrest has a restricting portion that restricts the downward rotation of the armrest in the vertical direction, and the avoiding means is interlocked with the tilting operation of the seat back by the tilting means. And the structure which cancel | releases the rotation control of the said seat back by the said control part may be sufficient. According to this configuration, interference between the armrest and the protrusion can be avoided with a simple configuration.

  In the present invention, the avoiding means connects the seat back and the armrest so that the armrest is rotated downward in the vertical direction in conjunction with the tilting operation of the seatback by the tilting means. The structure which has a connection means may be sufficient. According to this configuration, it is possible to reliably avoid interference between the armrest and the protrusion at an appropriate timing with a simple configuration.

  In the present invention, the armrest may be supported so as to be rotatable between a use position in a horizontal state and a storage position in a storage state along the seat back. According to this structure, since it is supported so that rotation between the said use position and the said storage position is possible, a passenger | crew's convenience can be improved.

  In the present invention, the protrusion may be provided on a sliding door that opens and closes in the front-rear direction of the vehicle. According to this configuration, since the armrest is supported not on the slide door but on the seat back, the slide door can be thinned in the vehicle width direction. As a result, the vehicle compartment space can be expanded, and the amount of pulling out to the outside in the vehicle width direction when the slide door is opened can be reduced.

  Moreover, in this invention, the structure by which the operation switch for a passenger | crew to operate vehicle equipment may be provided in the said protrusion part. According to this configuration, the protruding portion protrudes inward in the vehicle width direction from the end of the armrest on the outer side in the vehicle width direction on the front side in the vehicle front-rear direction of the vehicle, and is provided on the side wall portion of the vehicle body. And since the said operation switch is provided in the said protrusion part, a passenger | crew can operate the said operation switch easily, utilizing the said armrest.

  ADVANTAGE OF THE INVENTION According to this invention, a passenger | crew's convenience can be improved, avoiding interference with an armrest and a vehicle body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiment described below is an example as means for realizing the present invention, and the present invention can be applied to a modified or modified embodiment described below without departing from the spirit of the present invention.

<First Embodiment>
FIG. 1 is a side view of a vehicle A according to the first embodiment of the present invention. FIG. 2 is a perspective view showing an arrangement state of the sheet 2 according to the first embodiment, and FIG. 3 is a top view showing an arrangement state of the sheet 2.

  In this embodiment, the vehicle A is provided with three rows of seats (seats 1, 2, and 3 in order from the front) in the front-rear direction of the vehicle A in the passenger compartment. Further, on the side wall portion 4a of the vehicle body 4, the entrances 5a and 5b are arranged side by side in the front-rear direction of the vehicle A.

  The entrance / exit 5a is used for a passenger sitting on the seat 1 as a driver's seat to get on and off. In addition, the entrance / exit 5a is provided with a hinge door 6a that rotates in an arc shape around a hinge 6a 'fixed to the front end 5a' of the entrance / exit 5a and opens and closes.

  The entrance / exit 5b is used for passengers seated on the second row of seats 2 and the third row of seats 3 to get on and off. In addition, a slide door 6b that moves in the front-rear direction of the vehicle A to open and close the entrance / exit 5b is disposed at the entrance / exit 5b.

  The sliding door 6b is provided with a protruding portion 11 that protrudes inward in the vehicle width direction. On the upper surface 11a of the protruding portion 11, an operation panel C is provided for an occupant to operate the in-vehicle device. The operation panel C is provided with various switches 9 such as a window glass opening / closing switch and a sheet arrangement mode changeover switch.

  The seat 2 is provided in the vicinity of the slide door 6b, and can be pivoted outward in the vehicle width direction of the seat cushion 2a serving as a seat for the occupant, the seat back 2b serving as the back of the occupant, and the seat back 2b. And an armrest 2c that serves as an armrest for the passenger.

  The protrusion 11 is provided on the slide door 6b in front of the armrest 2c in the front-rear direction of the vehicle A, and protrudes inward in the vehicle width direction from the end 2c ″ on the outer side in the vehicle width direction of the armrest 2c. Therefore, the seat 2 can be efficiently used by arranging the seat 2 at a position where the protruding portion 11 and the armrest 2c overlap in the vehicle width direction, and the armrest can be used not on the slide door 6b but on the seatback 2b. By providing 2c, it is possible to reduce the thickness of the slide door 6b in the vehicle width direction, thereby expanding the vehicle compartment space, and the amount of pull-out to the outside in the vehicle width direction when the slide door 6b is opened. Can be reduced.

  Further, since the operation panel C is provided on the upper surface 11a of the protruding portion 11, the operation panel C can be easily operated when a passenger sitting on the seat 2 puts his hand on the armrest 2c. In addition, when the operation panel C is provided on the side surface of the protruding portion 11, there is a possibility that an occupant may hit a switch or the like provided on the operation panel C at the time of a side collision. By being provided in 11a, the possibility of injury can be reduced.

  FIG. 4 is a side view showing a peripheral configuration of the seat 2, and FIG. 5 is a side view showing a functional configuration of the link members L1 and L2.

  The seat 2 is supported on the floor 7 via the seat base 2d. The seat base 2d is provided below the seat cushion 2a and supports the seat 2. An upper rail R1 is fixed to the lower portion of the seat base 2d, and a lower rail R2 corresponding to the upper rail R1 is fixed to the floor 7. Therefore, the seat 2 is supported on the floor 7 so as to be movable in the front-rear direction of the vehicle A by the upper rail R1 being guided by the lower rail R2.

  The seat cushion 2a is connected to the front end 2d ″ of the seat base 2d via the link member L1. That is, the link member L1 is a member that rotatably connects the seat cushion 2a and the seat base 2d. .

  The seat cushion 2a is connected to the seat back 2b by a link member L2. That is, the link member L2 is a member that rotatably connects the seat cushion 2a and the seat back 2b.

  Therefore, when the seat back 2b is tilted, the seat cushion 2a is pushed forward by the link member L2 in the front-rear direction of the vehicle A, and the link member L1 is rotated approximately 90 degrees counterclockwise and falls. As a result, the seat cushion 2a falls forward and downward in the front-rear direction of the vehicle A, whereby the back surface of the seat back 2b can be stored lower in the horizontal state.

  The seat back 2b is supported above the rear end 2d 'of the seat base 2d so as to be pivotable about a pivot shaft 2b' provided on the seat base 2d. The pivot shaft 2b 'is provided with a seat tilting portion 30 that tilts the seat back 2b in the front-rear direction of the vehicle A.

  The seat tilting portion 30 includes a gear 31 fixed to the rotation shaft 2b 'and a restriction portion 32 that locks the gear 31 and restricts the rotation of the seat back 2b. The restricting portion 32 has a locking portion 32a for locking the gear 31, and an operation portion 32b for a passenger to hold and operate.

  The locking portion 32a is connected to the operation portion 32b and the link rod 32c. The link rod 32c is bent at its rear portion and extends upward in the vertical direction (substantially L-shaped). A locking portion 32a is provided at the upper end portion 32c ', and its front end portion 32c " The link rod 32c is supported by the seat base 2d so as to be rotatable about a rotation shaft 32d.

  The locking portion 32a is urged by an unillustrated spring in the direction in which the gear 31 is locked in front of the rotation shaft 32d (downward in the vertical direction). The configuration is such that it is not easily released regardless of the operation of the occupant.

  Accordingly, by operating the operating portion 32b of the restricting portion 32 upward and downward, the link rod 32c rotates clockwise around the rotation shaft 32d, the locking portion 32a comes off from the gear 31, and the seat back 2b. Can be tilted in the front-rear direction of the vehicle A. In the present embodiment, the seat back 2b is urged elastically forward in the front-rear direction of the vehicle A by a spring (not shown). For this reason, when the locked state of the locking portion 32a is released, the seat back 2b starts to tilt forward in the front-rear direction of the vehicle A without being pushed by the occupant.

  6 is a cross-sectional view of the avoidance unit and the restriction unit 50 taken along the line VV in FIG. 4, and FIG. 7 is a cross-sectional view taken along the line BB in FIG. FIG. 8 is an enlarged cross-sectional view of the avoidance unit 40 and the regulation unit 50. Moreover, in FIG. 9, (a) thru | or (c) are side views which show the avoidance operation | movement of the armrest 2c.

  The armrest 2c is supported by an end 2b ″ on the outer side in the vehicle width direction of the seat back 2b so as to be rotatable about a rotation shaft 2c ′. The rotation shaft 2c ′ has one end 2h thereof. The other end 2g is supported by the frame 2f of the seat back 2b, and is supported by a cylindrical body 2i formed of resin, for example, disposed inside the armrest 2c.

  Further, the armrest 2c extends in the front-rear direction of the vehicle A and rotates between a use position where an occupant can put an elbow and a storage position where the armrest 2c extends along the seat back 2b and enters a storage state. Supported as possible. The armrest 2c has a restricting portion 50 that restricts the downward rotation of the armrest 2c in the vertical direction. For this reason, it is possible to restrict rotation at the use position and the storage position.

  The restricting portion 50 includes a tooth portion 51 provided on the inner wall 2i ′ of the cylindrical body 2i, a claw portion 52 that locks the tooth portion 51, and one end portion 53a fixed to the rotating shaft 2c ′ of the armrest 2c. The spring 53 is wound around the rotation shaft 2c ′ in a coil shape and the other end 53b is fixed to the outer wall 2i ″ of the cylindrical body 2i, and the front portion 52a of the claw 52 is rotated around the rotation shaft 52d. And a connecting portion 54 that can be connected.

  The claw portion 52 is supported by a rotation shaft 52c that is rotatably supported by the frame 2f, and elastic force is urged downward in the vertical direction by a spring (not shown). The spring 53 urges the armrest 2c downward in the vertical direction (in the direction of rotating counterclockwise in FIG. 7).

  The connecting portion 54 is a rigid body that extends toward the distal end portion 2j of the armrest 2c. It may be a wire. An operation portion 54b for allowing an occupant to release the rotation restriction by the restriction portion 50 is connected to the distal end portion 54a of the connection portion 54 so as to be rotatable around a rotation shaft 54c. The operation portion 54b is supported by a frame (not shown) of the armrest 2c so as to be rotatable about a rotation shaft 54d.

  For this reason, when the occupant operates the operation portion 54b to rotate clockwise, the position of the rotation shaft 54c moves in the direction of the distal end portion 2j of the armrest 2c. Therefore, the connecting portion 54 is pulled out in the direction of the distal end portion 2j of the armrest 2c, and the claw portion 52 obtains a rotational force in the vertical direction upward (clockwise in FIGS. 7 and 8), and the teeth of the claw portion 52 The locked state to the part 51 will be cancelled | released.

  The avoidance unit 40 is connected to the claw portion 52 of the restriction unit 50. That is, the avoiding unit 40 includes a connecting portion 41 that is connected to the rear portion 52b of the claw portion 52 so as to be rotatable about the rotating shaft 41c. For the connecting portion 41, for example, a rigid body such as a metal can be used.

  The connecting portion 41 extends downward in the vertical direction, and a pin 41b is fixed to the lower end portion 41a. The pin 41b is slidable in the slit S provided in the seat base 2d. Accordingly, the movement of the tip 41a of the connecting portion 41 is restricted by movement within the slit S. In the present embodiment, the slit S is formed in an arc shape centering on the rotation shaft 2b 'in a range that is rearward in the front-rear direction and upper in the vertical direction of the vehicle A than the rotation shaft 2b' of the seat back 2b.

  For this reason, when the seat back 2b is tilted forward in the front-rear direction of the vehicle A by the seat tilting portion 30, the connecting portion 41 is a rigid body and the length is constant, so the pin 41b moves up and down in the slit S. It moves downward in the direction (clockwise in FIG. 7). Accordingly, the rear portion 52b of the claw portion 52 is pulled downward in the vertical direction and rotated clockwise, and the locked state of the tooth portion 51 by the claw portion 52 is released. As a result, as shown in FIG. 9A, the armrest 2c is moved downward in the vertical direction by the upward biasing of the spring 53, as shown in FIG. 9A. As shown in FIG. Interference with the protrusion 11 is avoided. In the present embodiment, the urging of the spring 53 allows the avoidance operation to be performed vertically downward even when the armrest 2c is in the retracted position. However, the avoidance operation is performed only by the weight of the armrest 2c. Also good. At this time, a weight of an arbitrary load can be added to the distal end portion 2j of the armrest 2c, and the speed of the downward avoidance can be increased only by the weight of the armrest 2c. Further, when the seat back 2b is tilted forward and the locking state of the tooth portion 51 by the claw portion 52 is released, the center of gravity of the armrest 2c is rotated so that the armrest 2c rotates vertically downward from the storage position. It may be set in front of the axis 2c ′ in the front-rear direction.

  As described above, according to the present embodiment, when the seat back 2b is tilted forward in the front-rear direction of the vehicle A by the seat tilting portion 30, the armrest 2c and the protruding portion 11 are avoided in order to avoid the armrest 2c downward in the vertical direction. Can be reliably avoided. Further, since the armrest 2c is stored at a position along the seat back 2b, it does not protrude from the back surface of the seat back 2b. For this reason, the armrest 2c does not get in the way when a load is loaded on the upper part of the back of the seat back 2b (in the storage mode) or when an occupant gets on or off the third row seat (in the getting-on / off mode). Therefore, the convenience of the passenger can be improved.

<Second Embodiment>
In the first embodiment described above, the occupant can release the rotation restriction of the armrest 2c by the operation part 54b of the restriction part 50, and by connecting the avoidance part 40 to the restriction part 50, the seat back 2b The rotation restriction of the armrest 2c is released in conjunction with the tilting operation. On the other hand, the present embodiment is different in that it does not have the restricting portion 50 and avoids the armrest 2c downward in the vertical direction. In addition, about the structure which is common in 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  FIG. 10 is a cross-sectional view illustrating the configuration of the avoidance unit 60 according to the second embodiment, and FIG. 11 is a side view illustrating the configuration of the avoidance unit 60.

  The avoiding unit 60 includes a cam 61 fixed to the rotating shaft 2c 'of the armrest 2c by frictional force, and a connecting unit 62 connected to the cam 61 so as to be rotatable about the rotating shaft 62a. The lower end portion 62b of the connecting portion 62 is fixed to the seat base 2d in the front-rear direction front of the rotation shaft 2b 'of the seat back 2b. The pivot shaft 62a is provided at the rear in the front-rear direction of the vehicle A with respect to the pivot shaft 2c ′ of the armrest 2c, and the pivot shaft 62b is closer to the vehicle A than the pivot shaft 2b ′ of the seat back 2b. It is provided in the front-rear direction.

  For this reason, when the seat back 2b is tilted forward in the front-rear direction of the vehicle A by the seat tilting portion 30, the distance in the front-rear direction of the vehicle A between the rotation shaft 62a and the rotation shaft 62b of the connecting portion 62 is increased. It narrows. Accordingly, stress is applied to the pivot shaft 62a in the upwardly upward direction, and the tip 2j of the armrest 2c pivots downward in the vertical direction in conjunction with the tilting operation of the seat back 2b.

  As described above, according to the present embodiment, the armrest 2c is avoided downward in the vertical direction so that the armrest 2c does not interfere with the protruding portion 11 with a simple configuration even when the restriction portion 50 is not provided. can do.

1 is a side view of a vehicle A according to a first embodiment of the present invention. It is a perspective view which shows the arrangement | positioning state of the sheet | seat 2 which concerns on 1st Embodiment. FIG. 6 is a top view showing the arrangement state of the sheet 2. 3 is a side view showing a peripheral configuration of a sheet 2. FIG. It is a side view which shows the functional structure of the link members L1 and L2. FIG. 5 is a cross-sectional view of the avoidance unit 40 and the regulation unit 50 taken along line VV in FIG. 4. It is sectional drawing along the BB line of FIG. 3 is an enlarged cross-sectional view of an avoidance unit 40 and a regulation unit 50. (A) thru | or (c) is a side view which shows the avoidance operation | movement of the armrest 2c. It is sectional drawing which shows the structure of the avoidance part 60 which concerns on 2nd Embodiment. 4 is a side view showing a configuration of an avoidance unit 60. FIG.

Explanation of symbols

A Vehicle 2 Seat 2a Seat cushion 2b Seat back 2c Armrest 2c "End 4 Car body 4a Side wall 11 Projection 30 Seat tilting part 40 Avoidance part 50 Restriction part

Claims (6)

A seat provided near the side wall of the vehicle body, and having a seat back and an armrest rotatably supported on the outer side in the vehicle width direction of the seat back;
Tilting means for tilting the seat back in the longitudinal direction of the vehicle;
A projecting portion provided on a side wall portion of the vehicle body in a vehicle width direction inward of an end portion on the vehicle width direction outer side of the armrest in front of the vehicle in the front-rear direction of the armrest;
Avoiding means for avoiding the armrest vertically downward so that the armrest does not interfere with the protrusion when the seatback is tilted forward in the front-rear direction of the vehicle by the tilting means;
A vehicle seat structure comprising: The armrest has a restricting portion that restricts the downward rotation of the armrest in the vertical direction;
2. The vehicle seat structure according to claim 1, wherein the avoiding unit releases the restriction of rotation of the seat back by the restricting unit in conjunction with the tilting operation of the seat back by the tilting unit.   The avoiding means includes connecting means for connecting the seat back and the armrest so as to rotate the armrest vertically downward in conjunction with the tilting operation of the seatback by the tilting means. The vehicle seat structure according to claim 1.   The said armrest is supported so that rotation between the use position used as a horizontal state and the storing position used as the state stored along the said seat back is possible. 2. A vehicle seat structure according to item 1.   5. The vehicle seat structure according to claim 1, wherein the projecting portion is provided on a sliding door that opens and closes in a front-rear direction of the vehicle.   The vehicle seat structure according to any one of claims 1 to 5, wherein the protrusion is provided with an operation switch for an occupant to operate the in-vehicle device.

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