JP6262720B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat including a seat cushion and a seat back.

  2. Description of the Related Art Conventionally, there has been known an automobile seat in which side support portions are provided on both sides of a seat body so as to hold a seated person's upper body from both sides (see Patent Document 1).

JP 61-109508 A

  By the way, the conventional side support device has a problem that the upper and lower arms for driving the side support portion protrude greatly from the left and right frames of the seat back, so that the size of the device increases.

This invention is made | formed in view of the above background, and it aims at providing the vehicle seat which can make a side support apparatus a compact structure.
Another object of the present invention is to improve durability and simplify the structure.
Moreover, an object of this invention is to support a passenger | crew stably.
Another object of the present invention is to stably support a component and suppress interference of the component.
Another object of the present invention is to widen the adjustment range of the support position by the side support device.
Another object of the present invention is to save space for arranging parts.
Another object of the present invention is to improve the uniformity of operation of the drive device.
Another object of the present invention is to improve assemblability.
Moreover, an object of this invention is to improve the manageability of a cable.
Moreover, an object of this invention is to suppress that a load is applied to a cable.
Another object of the present invention is to improve the drivability of the drive device.

  The present invention for achieving the above object is a vehicle seat including a seat cushion and a seat back, the left and right side frames constituting the left and right frames of the seat back, and the left and right sides in the seat back. A support member that is disposed adjacent to one side frame of the side frames and is configured such that a front end portion thereof is pivotable to the left and right with respect to the one side frame, and the one side frame It is arranged between the frame and the support member, and is configured to be movable in a direction in which one end approaches and separates from the other end along the side surface of the one side frame, and in the direction in which the one end approaches the other end. When moving, the intermediate portion between the one end and the other end is bent so as to protrude inward in the left-right direction, and the support member is pressed in the left-right direction by pressing the support member. Characterized by comprising a pressing member which rotates to.

  According to such a configuration, when the intermediate portion is not bent, the pressing member does not protrude greatly from the side frame, so that the side support device including the pressing member can be made compact.

  In the vehicle seat described above, the intermediate portion includes a bent portion that is bent when the one end moves in a direction close to the other end, and a left and right formed adjacent to the bent portion with the bent portion interposed therebetween. It can be set as the structure which has a pair of protrusion part which protrudes toward the direction inner side.

  According to this, since a pair of protrusion part contact | abuts with respect to a supporting member first, and a bending part becomes difficult to contact | abut, it can suppress that a load is directly applied from a supporting member with respect to a bending part which deform | transforms, and durability. Can be improved.

In the vehicle seat described above, the push pressure member consists of at least 2 parts, part that bends when the end moves in the direction close to the other end, the two parts are pivotally connected It can be configured.

  According to this, since the fatigue of the bent portion can be reduced as compared with the configuration in which the bent portion bends due to deformation, durability can be improved.

Wherein the vehicle seat, the push pressure member to the support may be configured with a fixed member fixed to said one side frame.

  According to this, since it is not necessary to provide a structure for attaching the pressing member to the side frame that is usually formed of metal, the structure can be simplified.

  In the above vehicle seat, the support member includes an upper supported portion disposed on the fixed member, and a lower supported portion disposed below the fixed member, and the upper supported portion. And the lower supported portion can be rotatably supported by the fixing member.

  According to this, since the pressing member supported by the fixing member and the fixing member (that is, the configuration for driving the supporting member) can be made compact, the side support device can be made more compact as a whole.

  In the above vehicle seat, the rear end portion of the one side frame is bent inward in the left-right direction, and the fixing member is in contact with the inner surface of the rear end portion of the one side frame. It can be set as the structure currently fixed to the side part of said one side frame.

  According to this, since the fixing member is supported by both the side portion and the rear end portion of the side frame, the support rigidity of the fixing member can be improved, and thus the occupant can be stably supported.

  In the vehicle seat described above, the support member may have a reinforcing rib.

  According to this, since the rigidity of a support member can be improved, a passenger | crew can be supported stably.

  The vehicle seat described above includes an airbag device for protecting an occupant from the side, and a webbing for regulating a deployment direction of the bag body of the airbag device, and the one side frame includes the one side frame, It can be set as the structure which has two bundling attachment parts shifted up and down for attaching a bundling.

  According to this, it is possible to stably support the webbing with the top and bottom 2 webbing attachment portions.

  In the vehicle seat described above, the pivot shaft of the support member is disposed at a position overlapping the rear end of the one side frame as viewed from the left-right direction or on the rear side of the rear end of the one side frame. It can be configured.

  According to this, since the rotation amount of the support member can be increased compared to the configuration in which the rotation shaft of the support member is disposed in front of the rear end of the side frame, the range of adjustment of the support position by the side support device can be widened. can do.

  In the vehicle seat described above, the support member has a plate-like portion at least at the edge of the front end portion, and the plate-like portion has an edge of the plate-like portion along other edges of the plate-like portion. Also, a thick bead can be formed.

  According to this, since the damage of the cushion material provided in the seat back due to the rotation of the support member is suppressed, durability can be improved.

  The vehicle seat includes a vehicle drive mechanism that drives the drive device when the cable is pulled or loosened from the pulled state by the drive force from the drive force generation device, and the vehicle drive mechanism includes a first drive mechanism. A first driving device that is driven by loosening the cable and the second cable, one end of the first cable being engaged, and the other end of the first cable being pulled or pulled; and the second A second driving device that engages with one end of the cable and drives the other end of the second cable by being pulled or loosened from the pulled state, and the one end of the first cable and the first cable The other end of the two cables can be connected.

  According to this, since the one end part of the first cable and the other end part of the second cable are connected, the first cable and the second cable can be handled as a single cable. Thereby, for example, since the number of cables extending from the driving force generator can be reduced, the space for arranging the cables can be saved. In addition, compared to the configuration in which the two cables individually extend from the actuator, branch off in the middle, and are connected to the driving devices, respectively, as in the prior art, the strokes when the two cables are operated are easily made uniform. Therefore, the uniformity of the operation of the two driving devices can be improved.

  In the vehicle seat described above, the first cable has an engaging portion for engaging one end portion of the first cable with the first driving device, and the second cable is connected to the engaging portion. It is comprised so that engagement is possible, It can be set as the structure which has a connection part which connects the other end part of the said 2nd cable to the one end part of the said 1st cable when it engages with the said engaging part.

  According to this, since the 1st cable and the 2nd cable can be connected easily, assemblability can be improved.

  In the vehicle seat described above, the first cable and the second cable may be integrally formed.

  According to this, since the number of parts can be reduced, assemblability can be improved.

  In the vehicle seat described above, the direction in which one end of the first cable enters the first driving device and the direction in which the one end of the second cable enters the second driving device are the same. it can.

  According to this, since it becomes easy to symmetrize the configuration of the first drive device and the second drive device, it is possible to further improve the uniformity of operation of the two drive devices.

  In the vehicle seat described above, the second cable may be configured such that one end portion of the first cable is pulled out from the first drive device on the side opposite to the side entering the first drive device. .

  According to this, since the 1st cable and the 2nd cable can be arranged in the shape of a straight line within the 1st drive device, the manageability of a cable can be improved.

  The vehicle seat includes a first frame and a second frame, and the other end of the first cable is connected to the driving force generator, and the driving force generator and the first driver are A second frame is mounted on the first frame, the second drive unit is mounted on the second frame, the first cable is arranged to operate along a longitudinal direction of the first frame, and the second cable is The second frame may be arranged so as to operate along the longitudinal direction of the second frame.

  According to this, since the 1st cable can be shortened, the space-saving for the space for arranging the 1st cable can be attained. Further, since the cable can be arranged along the frame, the space for arranging the cable can be further reduced.

  In the above vehicle seat, the first frame constitutes one of the left and right side frames, and the second frame constitutes the other of the left and right side frames, and the first frame and the first frame It is arranged between two frames and includes a load support member for supporting a load from an occupant, and the second cable can be configured to pass behind or below the load support member.

  According to this, even if it is a case where a load is applied to a load support member from a crew member, it can control that a load is applied to the 2nd cable.

  In the vehicle seat described above, at least one of the first driving device and the second driving device moves in a direction in which one end where the one end of the cable is connected is moved closer to and away from the other end by the operation of the cable. And a bending member that bends so that an intermediate portion between the one end and the other end protrudes in a predetermined direction when the one end moves in a direction close to the other end, The bending member may be arranged along the bending member on the side opposite to the predetermined direction.

  According to this, interference with the intermediate part of the bending member to be bent, and a cable can be suppressed. In addition, since the interference between the intermediate portion of the bending member and the cable is suppressed, it is possible to suppress a load from being applied to the cable when the intermediate portion of the bending member is bent.

  In the vehicle seat described above, at least one of the first driving device and the second driving device has a moving member that moves by being pressed against the intermediate portion by bending of the bending member, and the moving member Can be configured to cover an engagement portion between one end of the cable and the one end of the bending member.

  According to this, it can suppress that a load is applied to the engaging part of the cable, and also the one end part of a cable, and the end of a bending member by covering with a moving member.

  The vehicle seat described above may be configured to include a guide portion for guiding the movement of the one end of the bending member.

  According to this, since one end of the bending member can be moved favorably, the drivability of the driving device having the bending member can be improved.

1 is a perspective view of a vehicle seat as an example of a vehicle seat according to an embodiment. It is a perspective view of the flame | frame incorporated in the vehicle seat. It is a front view of a seat back frame. It is a disassembled perspective view of a side support device. It is a cross-sectional view which shows the side support apparatus before a drive, and the structure of the periphery. It is the longitudinal cross-sectional view of a side support apparatus, (a) which shows before drive, (b) which shows after drive. It is the figure which looked at the supporting member from the surface side. It is a cross-sectional view showing a configuration around the airbag device. It is figure (a), (b) explaining a 1st cable and a 2nd cable. It is a cross-sectional view which shows the side support apparatus after a drive, and the structure of the periphery. It is a longitudinal cross-sectional view which shows the structure of the pressing member which concerns on a modification, and its periphery, (a) which shows before drive, (b) which shows after drive. It is the figure which looked at the support member concerning a modification from the back side. It is figure (a), (b) explaining the cable which concerns on a modification. It is a perspective view of the seat back frame concerning the 1st reference form. It is a cross-sectional view of the side support structure according to the first reference embodiment. It is a cross-sectional view of the side support device according to the second reference embodiment, a diagram (a) showing before driving and a diagram (b) showing after driving. It is figure (a), (b) explaining the holding structure of the cable which concerns on a 2nd reference form.

Next, an embodiment of the present invention will be described with reference to the drawings as appropriate.
As shown in FIG. 1, an automobile as a vehicle in the present embodiment includes a vehicle seat S as an example of a vehicle seat used for a driver seat, a passenger seat, and the like. The vehicle seat S mainly includes a seat cushion S1 on which an occupant is seated, a seat back S2, and a headrest S3 that supports the head of the occupant.

  As shown in FIG. 2, the seat back S <b> 2 includes a metal seat back frame F <b> 2 constituting the seat frame F, a side support drive mechanism 1 as an example of a vehicle drive mechanism, and a plate-like pressure receiving force as a load support member. A member 10 and an airbag device AB for protecting the occupant from the side are mainly provided, and a cushioning material 70 made of urethane foam or the like and a skin material 75 made of synthetic leather or fabric so as to cover these members. It is configured by covering the seat back frame F2 (see FIGS. 5 and 8).

  The seat back frame F2 includes left and right side frames 20 that constitute the left and right frames of the seat back S2. The left and right side frames 20 have a left side frame 20L as an example of a first frame constituting a left frame of the backrest and a right side frame 20R as an example of a second frame constituting a right frame of the backrest. In this embodiment, the left side frame 20L and the right side frame 20R are formed substantially symmetrically.

  The pressure receiving member 10 is a member for supporting a load from an occupant, and is disposed between the left side frame 20L and the right side frame 20R, and retracts to the left and right side frames 20 via the upper and lower support wires W1, W2. It is movably linked. The pressure receiving member 10 is formed by the support wires W1 and W2 being bent or linked when a load of a predetermined value or more is applied to the seat back S2 from the upper body of the occupant, for example, when another vehicle collides with the rear portion of the host vehicle. The support wire W <b> 2 moves rearward due to the swing of the mechanism (not shown), thereby moving backward with respect to the left and right side frames 20. Thereby, since a passenger | crew's upper body sinks into seat back S2, the influence of the load at the time of a rear-end collision with respect to a passenger | crew can be relieve | moderated.

  The side support drive mechanism 1 is a mechanism for driving a support member 50 as an example of a moving member provided on the left and right in the seat back S2. Each of the support members 50 is disposed so as to oppose the vicinity of the portion under the base of the occupant's arm seated on the vehicle seat S, and the upper body of the occupant is viewed from the left and right via the cushion material 70 and the skin material 75. I support it. In the vehicle seat S of the present embodiment, the front end portion of the support member 50 is rotated left and right by the side support drive mechanism 1, so that the portion of the seat back S <b> 2 that faces the vicinity of the portion below the base of the occupant's arm is occupant. Swell toward or away from the inflated state. Thereby, a support position can be adjusted according to a passenger | crew's body shape.

  As shown in FIG. 3, the side support drive mechanism 1 includes an actuator AC as a drive force generator, a left side support device 3L as an example of a first drive device, and a right side support device 3R as an example of a second drive device. The first cable 81 and the second cable 82 are mainly provided. In the present embodiment, the left side support device 3L is attached to the inside of the left side frame 20L, and the actuator AC is attached to the outside of the left side frame 20L. Further, the right side support device 3R is attached to the inside of the right side frame 20R in a state of facing the left side support device 3L.

  Although details will be described later, the first cable 81 is a member that transmits the driving force of the actuator AC to the left side support device 3L. One end of the first cable 81 is engaged with the left side support device 3L and the other end is directly connected to the actuator AC. It is connected. The second cable 82 is a member that transmits the driving force of the actuator AC to the right side support device 3R via the first cable 81. One end is engaged with the right side support device 3R, and the other end is the left side support. It is connected to one end of the first cable 81 in the device 3L. As a result, the support member 50 of the left side support device 3L is driven by the other end of the first cable 81 being pulled or loosened from the pulled state by the driving force from the actuator AC. Then, when the other end of the second cable 82 is pulled or loosened from the pulled state, the support member 50 of the right side support device 3R is driven.

  In the present embodiment, the second cable 82 extends from the left side support device 3L, and then passes through the back of the pressure receiving member 10 and is connected to the right side support device 3R. Thereby, even if it is a case where a load is applied to the pressure receiving member 10 from a passenger | crew, it can suppress that a load is applied to the 2nd cable 82 directly. Further, in the present embodiment, the second cable 82 is fastened between the two openings 18 arranged on the left and right sides formed in the pressure receiving member 10 by the binding band 91. Thereby, since the movement of the second cable 82 can be suppressed when the second cable 82 is pulled, interference between the second cable 82 and other members such as the support wire W1 is suppressed, and the generation of abnormal noise is suppressed. can do.

  Each of the left and right side support devices 3L and 3R mainly includes a fixing member 30 fixed to the corresponding one side frame 20, a pressing member 40 as an example of a bending member, and a support member 50. Yes. In the present embodiment, the left and right side support devices 3L and 3R are configured to be substantially bilaterally symmetrical. Therefore, in the following description, the detailed configuration of the left side support device 3L attached to the left side frame 20L will be mainly described. To do.

  As shown in FIG. 4, the fixing member 30 is a member for supporting the pressing member 40 and the supporting member 50 and fixing them to the side frame 20 (not shown in FIG. 4). In the present embodiment, the fixing member 30 includes a substantially vessel-shaped fixing member main body 30A that is open on the inner side in the left-right direction, and an upper portion that extends obliquely rearward from the left-right inner end of the rear wall of the fixing member main body 30A. It has an extending portion 30B and a lower extending portion 30C.

  A shaft support portion 31 that rotatably supports an upper end 42 of a pressing member 40 described later is formed on the upper portion of the fixing member main body 30A. The fixing member main body 30 </ b> A serves as a guide portion 32 for guiding the vertical movement of the lower end 41 of the pressing member 40. The guide part 32 has a guide surface 32 </ b> A that faces the inner side in the left-right direction of the side wall 30 </ b> D constituting the guide part 32 and mainly guides the movement of the lower end 41 of the pressing member 40. As shown in FIG. 5, the guide surface 32 </ b> A is inclined so as to spread leftward and rightward from the rear end portion toward the front end portion so that the front end portion is located on the outer side in the left-right direction with respect to the rear end portion. Thereby, the guide surface 32A is in a state of facing the occupant seated on the vehicle seat S, rather than parallel to the front-rear direction. Further, as shown in FIGS. 6A and 6B, the upper end portion and the lower end portion of the side wall 30D are respectively penetrated for screwing screws 92 when the fixing member 30 is fixed to the side frame 20. One hole 30E is formed.

  As shown in FIG. 4, a shaft portion 33 extending in the vertical direction is formed at the ends of the upper and lower extension portions 30 </ b> B and 30 </ b> C. More specifically, the shaft portion 33A is formed so as to protrude upward from the upper surface of the upper extension portion 30B, and the shaft portion 33B is coaxial with the shaft portion 33A and protrudes downward from the lower surface of the lower extension portion 30C. Is formed. Further, the shaft portion 33C is formed to be coaxial with the shaft portions 33A and 33B and connect the upper and lower extending portions 30B and 30C. These shaft portions 33 </ b> A to 33 </ b> C (shaft portion 33) are portions that function as shafts that rotatably support the support member 50, and are formed integrally with the fixing member 30 as a part of the fixing member 30. Thereby, since the number of parts can be reduced compared with the structure provided with an axis | shaft separately from a fixing member, the structure of side support apparatus 3L, 3R can be simplified.

  The pressing member 40 is a member for driving the support member 50, and mainly includes a lower end 41 that is one end, an upper end 42 that is the other end, and an intermediate portion 43 between the lower end 41 and the upper end 42. ing. As shown in FIGS. 6A and 6B, the pressing member 40 is supported by an upper end 42 so as to be rotatable with respect to the fixing member 30 (side frame 20). One end of the first cable 81 is connected to the first cable 81. As a result, the pressing member 40 can move up and down in the direction of approaching and separating along the guide surface 32A (side surface of the side frame 20) with respect to the upper end 42 to which the lower end 41 is fixed by the operation of the first cable 81. It is configured.

  The intermediate portion 43 is configured to be able to be bent so as to protrude inward in the left-right direction (predetermined direction) when the lower end 41 moves upward, which is a direction close to the upper end 42. More specifically, the intermediate portion 43 includes a bent portion 43A that is bent when the lower end 41 moves in a direction approaching the upper end 42, and a pair formed adjacent to the upper and lower portions of the bent portion 43A with the bent portion 43A interposed therebetween. The protrusion 43B is mainly included. The bent portion 43A is formed to be thinner than other portions of the pressing member 40 so that the bent portion 43A can be bent and deformed. The pair of projecting portions 43B are formed in a rib shape projecting inward in the left-right direction from the bent portion 43A before the bent portion 43A shown in FIG. 6A is bent.

  As shown in FIG. 5, the support member 50 is a substantially plate-like member that supports the vicinity of the site under the base of the occupant's arm via the skin material 75 and the cushion material 70, and the fixing member 30 (side frame 20 ) With respect to the rear end portion thereof, the front end portion is configured to be rotatable left and right. More specifically, as shown in FIG. 4, the support member 50 includes, at its rear end, an upper supported portion 51 disposed on the upper extension portion 30 </ b> B of the fixing member 30 and a lower extension of the fixing member 30. The lower supported portion 52 disposed below the portion 30C, and the shaft engaging portion 53 formed between the upper supported portion 51 and the lower supported portion 52 are provided. The concave portions 51A and 52A formed in the upper and lower supported portions 51 and 52 are engaged with the shaft portions 33A and 33B, and the shaft engaging portion 53 is engaged with the shaft portion 33C, whereby the upper supported portion 51 is engaged. The lower supported portion 52 and the shaft engaging portion 53 are rotatably supported with respect to the fixing member 30. In the present embodiment, since the shaft portions 33A and 33B have a substantially barrel-shaped cross-sectional shape, when the support member 50 is rotated largely inward in the left-right direction with respect to the fixed member 30, the upper and lower covers Although it can detach | leave easily from the support parts 51 and 52, since the shaft engaging part 53 is engaging with the shaft part 33C, the supporting member 50 is suppressed from dropping from the fixed member 30.

  The supporting member 50 has a substantially U-shaped continuous portion having a thickness smaller than that of the upper and lower supported parts 51 and 52 at the edge in the range from the vicinity of the center of the upper end to the center of the lower end through the front end. A plate-like portion 54 is provided. The plate-like portion 54 is formed with a bead 54 </ b> A thicker than the other portions of the plate-like portion 54 by being raised toward the front side of FIG. 4 along the edge of the plate-like portion 54. . As shown in FIG. 5, the bead 54 </ b> A is formed to have a substantially arc-shaped round cross-sectional shape.

  As shown in FIGS. 4 and 7, the support member 50 has a plurality of reinforcing ribs 55 on the front surface 50A for supporting the occupant and on the back surface 50B opposite to the front surface 50A. In the present embodiment, the reinforcing rib 55 on the back surface 50B is formed so as to extend in the vertical direction or the horizontal direction, and a part thereof intersects in a cross shape. In other words, the support member 50 has a plurality of concave portions 56 on the front surface 50A and the back surface 50B, and a plurality of reinforcing ribs 55 are formed so as to partition the concave portions 56. Is formed. With such a configuration, the rigidity of the support member 50 can be improved, so that an occupant seated on the vehicle seat S can be stably supported. The concave portion 56A formed near the center of the back surface 50B extends long in the vertical direction, and functions to guide the movement of the intermediate portion 43 of the pressing member 40 as shown in FIGS. 6 (a) and 6 (b). have.

  The fixing member 30, the pressing member 40, and the supporting member 50 described above are assembled and fixed to the inner surface of the side frame 20 as the side support devices 3L and 3R as shown in FIG. More specifically, the side frame 20 has a substantially U shape in which the front end portion 20A and the rear end portion 20C bend inward in the left-right direction with respect to the side portion 20B. A plurality of contact ribs 35 protruding rearward are formed side by side in the vertical direction (only one is shown). The fixing member 30, that is, the side support devices 3 </ b> L and 3 </ b> R is fixed to the side portion 20 </ b> B of the side frame 20 with the screw 92 in a state where the contact rib 35 is in contact with the inner surface of the rear end portion 20 </ b> C of the side frame 20. Yes. Thereby, since the side support devices 3L and 3R are supported by both the side portion 20B and the rear end portion 20C, the support rigidity can be improved, so that the occupant can be stably supported by the support member 50.

  When the side support devices 3L and 3R are fixed to the side frame 20, the support member 50 is disposed adjacent to the inner side in the left-right direction of the one side frame 20 in the seat back S2, and the pressing member 40 is disposed on the one side frame. 20 and the support member 50. Further, in the present embodiment, the rotation shaft of the support member 50, that is, the shaft portion 33 of the fixing member 30 is substantially entirely disposed behind the rear end (see the chain line) of the side frame 20. Thereby, compared with the structure by which the axial part 33 is arrange | positioned ahead rather than the rear end of the side frame 20, since the rotation amount of the support member 50 can be enlarged, the adjustment range of the support position by side support apparatus 3L, 3R is widened. can do.

  As shown in FIG. 2, in the present embodiment, the left and right side support devices 3L and 3R (fixing member 30) are fixed to the side frame 20 between two mounting holes 25 in the vertical direction. The attachment hole 25 is a through-hole serving as a baffle attachment portion for allowing the baffles 61 and 62 (see FIG. 8) for regulating the deployment direction of the bag body of the airbag apparatus AB to be attached to the side frame 20. The upper and lower ends of the side frame 20 are formed so as to be shifted vertically.

  Here, the configuration around the airbag device AB in the seat back S2 will be briefly described. As shown in FIG. 8, the airbag device AB includes a bag body, an inflator, and the like (not shown), and is fixed to the right side frame 20 </ b> R via a support plate 26. The force cloths 61 and 62 are arranged so as to surround the airbag device AB, and the front end portions thereof are sewn together with the skin material 75 at the breaking portion 76 of the skin material 75, and the rear end portions are fixed to the right side frame 20R. Yes. When the airbag apparatus AB is operated, the bag body that is inflated by the gas generated by the inflator is inflated forward while being guided by the left and right force cloths 61 and 62, and breaks the breaking portion 76 to occupant. Will be deployed on the side of

  The upper and lower portions (only one of them is shown) of the rear end portion of the webbing 61 are fixed to the rivet-type webbing mounting member 27, and the upper and lower webbing mounting members 27 are engaged with the upper and lower mounting holes 25 of the right side frame 20R. By joining, it is fixed to the right side frame 20R. The webbing attachment member 27 is made of resin or the like, and has two through holes 27B and 27C in the body portion 27A. The baffle 61 is passed through the through hole 27B from the outer side in the horizontal direction in FIG. 8 to the inner side, and then fixed to the rod-shaped pin 27D and locked together with the pin 27D in the through hole 27C. It is fixed to the baffle attachment member 27. The body portion 27A of the baffle attachment member 27 is formed with a retaining portion 27E for preventing the attachment from the attachment hole 25. On the other hand, the upper and lower portions (only one of them is shown) of the rear end portion of the webbing 62 are fixed to a hook-like webbing attachment member 28 formed of resin or the like, and the upper and lower webbing attachment members 28 are fixed to the right side frame 20R. It is fixed to the right side frame 20R by being hooked to the end of the rear end portion 20C.

  In the present embodiment, since the two attachment holes 25 are formed so as to be displaced vertically, the webbing 61 can be stably supported by the two attachment holes 25 at the upper and lower positions. In the present embodiment, since the side support devices 3L and 3R are fixed to the side frame 20 between the upper and lower two mounting holes 25, interference between the baffle mounting member 27 and the screw 92 can be suppressed, and the two Compared to the configuration in which the side support devices are fixed above and below the mounting hole 25, the side support devices 3L and 3R can be made compact.

  As shown in FIG. 4, the first cable 81 and the second cable 82 can slide on the tubular sheaths 81B and 82B, respectively, with one end and the other end (only one of them shown) exposed to the outside. Is inserted. Each cable 81, 82 has an engaging portion 83 for engaging one end portion of the cable 81, 82 with the pressing member 40 of the side support devices 3L, 3R at one end portion (only the first cable 81 is shown). doing. The engaging part 83 is a substantially cylindrical member made of metal, and is fixed to one end of each of the cables 81 and 82 (see also FIG. 9). On the other hand, the second cable 82 has a connecting portion 84 for connecting the other end of the second cable 82 to one end of the first cable 81 at the other end. The connection portion 84 is a metal plate having a circular engagement hole 84 </ b> A that can be engaged with the engagement portion 83, and is fixed to the other end portion of the second cable 82.

  As shown in FIG. 9A, in the present embodiment, the first cable 81 and the second cable 82 are engaged by engaging the connecting portion 84 of the second cable 82 with the engaging portion 83 of the first cable 81. Are connected to each other. As described above, in the present embodiment, the first cable 81 and the second cable 82 can be easily connected by the engagement between the engaging portion 83 and the connecting portion 84, so that the side support drive mechanism 1 and the vehicle seat S can be assembled. Can be improved.

  As shown in FIG. 3, the other end of the first cable 81 is wound around a reel (not shown) provided in the actuator AC, and is drawn upward from the actuator AC. The first cable 81 is disposed along the outer surface of the left side frame 20L, is curved above the left side support device 3L, passes through the back of the seat back frame F2, and has one end portion in the left side support device 3L. Entered from above. As shown in FIGS. 9A and 9B, the first cable 81 that has entered the left side support device 3L is engaged with the lower end 41 of the pressing member 40 as shown in FIGS. 3L is engaged.

  Returning to FIG. 3, the second cable 82 is drawn from the left side support device 3 </ b> L on the lower side opposite to the upper side where the one end portion of the first cable 81 enters the left side support device 3 </ b> L. Thereby, since the 1st cable 81 and the 2nd cable 82 can be arrange | positioned linearly in the left side support apparatus 3L, the manageability of the cables 81 and 82 in the left side support apparatus 3L can be improved. The second cable 82 drawn out from the left side support device 3L is disposed with the rear side of the pressure receiving member 10 facing diagonally upward to the right, and one end of the second cable 82 enters the right side support device 3R from above. As shown in FIGS. 9A and 9B, the second cable 82 that has entered the right side support device 3R is engaged with the lower end 41 of the pressing member 40 so that the right side support device is engaged. It is engaged with 3R.

  As shown in FIGS. 6A and 6B, the cables 81 and 82 are arranged on the outer side in the left and right direction opposite to the inner side in the left and right direction from which the intermediate part 43 protrudes with respect to the middle part 43 of the pressing member 40. And is arranged along the pressing member 40 (intermediate portion 43). Thereby, since the interference between the bent intermediate portion 43 and the cables 81 and 82 is suppressed, it is possible to suppress a load from being applied to the cables 81 and 82 when the intermediate portion 43 is bent. Further, since the engaging portion between the one end of the cables 81 and 82 and the lower end 41 of the pressing member 40 is covered by the support member 50, the cables 81 and 82 and the cables 81 and 82 and the pressing member 40 are engaged. It can suppress that a load is applied to a joint part from a passenger | crew.

Next, the effects of the vehicle seat S of the present embodiment will be described while describing the operation of the vehicle seat S configured as described above.
In the state shown in FIG. 5 and FIG. 6A, the other end portion of the first cable 81 is wound up when the passenger operates a controller (not shown) to rotate a reel (not shown) in the actuator AC in one direction. Then, one end of the first cable 81 and one end of the second cable having the other end connected to the first cable 81 are pulled together.

  Then, as shown in FIG. 6B, the lower end 41 of the pressing member 40 engaged with one end of each of the cables 81 and 82 (only one is shown) moves in the direction approaching the upper end 42, and the intermediate portion 43. Is bent so as to protrude inward in the left-right direction. As a result, the support member 50 is pressed by the intermediate portion 43, and as shown in FIG. 10, the support member 50 is pivoted inward in the left-right direction around the shaft portion 33. As a result, the cushion material 70 and the skin material 75 are pressed by the support member 50 and swell toward the occupant side, and the occupant support position can be changed.

  In the present embodiment, since the first cable 81 and the second cable 82 are connected, so that they can be operated as a single cable, for example, the two cables individually extend from the actuator. The stroke when the cables 81 and 82 are operated can be made uniform as compared with a configuration in which the cables 81 and 82 are operated and branched in the middle and connected to the side support devices. Thereby, the uniformity of operation | movement of the left and right side support apparatuses 3L and 3R can be improved.

  Also, as shown in FIG. 3, the direction in which one end portion of the first cable 81 enters the left side support device 3L and the direction in which one end portion of the second cable 82 enters the right side support device 3R are the same. The side support devices 3L and 3R are easily symmetric. In this embodiment, the left and right side support devices 3L and 3R are actually configured substantially symmetrically. Thereby, the uniformity of operation | movement of the left and right side support apparatuses 3L and 3R can be improved more.

  On the other hand, in the state shown in FIG. 10, the occupant operates the controller (not shown) to rotate the reel in the actuator AC in the direction opposite to the one direction, so that the winding state of the other end of the first cable 81 is When loosened, the one end of the first cable 81 and the one end of the second cable are loosened together.

  Then, as shown in FIG. 5, the front end of the support member 50 pivots about the shaft 33 outward in the left-right direction due to the load from the occupant and the restoring force of the skin material 75 and the cushion material 70. At this time, the pressing member 40 is pushed by the supporting member 50, so that the bent middle portion 43 returns from the state shown in FIG. 6B to the state shown in FIG. It moves in the direction away from the upper end 42 while pulling one end of 81 and 82. Thereby, it can retract from the state which the cushion material 70 and the skin material 75 expanded, and a passenger | crew's support position can be changed.

  In the vehicle seat S, the driving position of the actuator AC is adjusted by the operation of the controller based on the above-described operation, so that the support position by the support member 50 according to the body shape of the seated occupant, in other words, FIG. The bulge amount of the portion (the portion where the support member 50 is disposed) facing the vicinity of the portion below the base of the occupant's arm of the seat back S2 shown in FIG.

  In the present embodiment, since the guide portion 32 that guides the movement of the lower end 41 of the pressing member 40 and the concave portion 56A that guides the movement of the intermediate portion 43 are provided, the lower end 41 and the intermediate portion 43 are moved favorably. Can do. Thereby, the driveability of the side support devices 3L and 3R can be improved. Moreover, in this embodiment, since the guide surface 32A of the guide part 32 is inclined so as to face the occupant with respect to the front-rear direction, the guide surface 32A and the occupant face each other, so The occupant can be supported in a balanced manner through the 50 or the like. Further, in the present embodiment, since the intermediate portion 43 of the pressing member 40 is disposed so as to contact the bottom surface of the recess 56A, that is, near the center of the support member 50, the support member 50 is stably supported by the intermediate portion 43. Thus, the occupant can be supported stably.

  In the present embodiment, as shown in FIGS. 5 and 10, a bead 54 </ b> A having a thickness greater than that of other portions of the plate-like portion 54 is formed at the edge of the plate-like portion 54 of the support member 50. Therefore, damage to the cushion material 70 due to the rotation of the support member 50 can be suppressed. In the present embodiment, as shown in FIGS. 6A and 6B, in the pressing member 40, the pair of protruding portions 43 </ b> B first come into contact with the support member 50, and the bent portion 43 </ b> A hardly comes into contact. Therefore, it can suppress that a load is directly applied to the bending part 43A which deform | transforms from the supporting member 50. Accordingly, the durability of the vehicle seat S including the side support drive mechanism 1 can be improved.

  In the vehicle seat S described above, as shown in FIG. 6A, the pressing member 40 does not protrude greatly with respect to the side frame 20 when the intermediate portion 43 is not bent. The side support devices 3L and 3R including 40 can be downsized from side to side. Further, as shown in FIG. 4, since the fixing member 30 has a size that can be disposed between the upper and lower supported portions 51 and 52 of the supporting member 50, the fixing member 30 and the pressing member 40 supported by the fixing member 30. That is, the configuration for driving the support member 50 can be made compact in the vertical direction. Accordingly, in the present embodiment, the side support devices 3L and 3R can be made compact as a whole.

  Further, in the vehicle seat S, as shown in FIG. 3, since the first cable 81 and the second cable 82 are connected, they can be handled as one cable, so that they extend from the actuator AC. The number of cables can be one. Moreover, since the actuator AC and the left side support device 3L are attached to the same left side frame 20L, the first cable 81 can be shortened. Further, in the present embodiment, one end portion of the first cable 81 is disposed so as to operate along the longitudinal direction of the left side frame 20L, and one end portion of the second cable 82 is disposed along the longitudinal direction of the right side frame 20R. Since it arrange | positions so that it may operate | move, the cables 81 and 82 can be arrange | positioned along the side frames 20L and 20R as a whole. Thus, the space for arranging the cables 81 and 82 in the vehicle seat S can be saved.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of this invention as follows.

  The configuration of the side support devices 3L and 3R shown in the embodiment is an example, and the present invention is not limited to the configuration of the embodiment. For example, in the above-described embodiment, the pressing member 40 and the support member 50 are fixed to the side frame 20 via the fixing member 30, but the pressing member and the supporting member are directly fixed to the side frame without providing the fixing member. It may be. In addition, since it is not necessary to provide the structure for attaching the pressing member 40 etc. to the metal side frame 20 by providing the fixing member 30 like the said embodiment, it is easy to make the structure of the side frame 20 simplified. can do.

  Moreover, in the said embodiment, although the pressing member 40 was comprised from one component, it is not limited to this, The pressing member may be comprised from two or more components. As an example, as shown in FIGS. 11A and 11B, the pressing member 40 is composed of two parts, ie, a pressing member lower part 40 </ b> A and a pressing member upper part 40 </ b> B, and the lower end 41 moves in a direction close to the upper end 42. The part that bends to the shaft part 44 may be configured such that the other is rotatably connected to the shaft part 44 formed on one of the pressing member lower part 40A and the pressing member upper part 40B. According to such a configuration, compared to a configuration in which the bent portion bends due to deformation, fatigue of the bent portion can be reduced, so that the durability of the pressing member 40 can be improved. Further, for example, as shown in FIG. 12, the support member 50 may be formed such that the reinforcing ribs 55 form a honeycomb structure.

  In the embodiment, the first cable 81 and the second cable 82 are two cables configured as separate parts. However, the present invention is not limited to this, and for example, FIGS. 13 (a) and 13 (b). As shown in FIG. 1, the first cable and the second cable may be a single cable 85 formed integrally. According to this, since the number of parts can be reduced, the assemblability of the side support drive mechanism 1 and the vehicle seat S can be improved, and the cost can be reduced. Supplementally, the cable 85 shown in FIG. 13 has an engaging portion 83 that is engaged with the pressing member 40 of the right side support device 3R at one end, and is engaged with the pressing member 40 of the left side support device 3L in the middle. The engaging portion 83 is provided. The cable 85 corresponds to the first cable of the present invention that can be called a first cable portion from the other end portion to which the actuator is connected to the engagement portion 83 in the middle portion, and from the engagement portion 83 in the middle portion to one end portion. The portion up to the engaging portion 83 corresponds to the second cable of the present invention which can be called a second cable portion.

  In the embodiment, as illustrated in FIG. 5, the configuration in which the rotation shaft of the support member 50 (the shaft portion 33 of the fixed member 30) is arranged on the rear side of the rear end of the side frame 20 is exemplified. The present invention is not limited to this. For example, the rotation shaft of the support member may be disposed at a position overlapping the rear end of the side frame when viewed from the left-right direction. This also makes it possible to increase the amount of rotation of the support member as compared with the configuration in which the rotation shaft is disposed in front of the rear end of the side frame.

  In the embodiment, as shown in FIG. 3, the second cable 82 is fastened to the pressure receiving member 10, but the present invention is not limited to this. For example, the second cable is fastened to the side frame 20. It may be arranged without being fastened. Moreover, in the said embodiment, although the 2nd cable 82 passed after the pressure receiving member 10, this invention is not limited to this, For example, even if the 2nd cable has passed under 40 of the pressure receiving member. Good. Also by this, it can suppress that a load applies to a 2nd cable from a passenger | crew. Moreover, in the said embodiment, although the plate-shaped pressure receiving member 10 was illustrated as a load support member, this invention is not limited to this, For example, a wire-like seat spring etc. may be sufficient.

  In the above embodiment, as shown in FIG. 2, the airbag apparatus AB is attached to the right side frame 20R and the actuator AC is attached to the left side frame 20L. However, the present invention is not limited to this, for example, The arrangement may be opposite to that of the above embodiment. The airbag device and the actuator may be attached to the same side frame. The actuator may be provided in the seat cushion S1 (see FIG. 1). In the above-described embodiment, the electric actuator AC is exemplified as the driving force generation device. However, the present invention is not limited to this, and for example, the driving force generation device winds a cable by turning a handle by an occupant. Or may be configured to be loosened.

  In the said embodiment, although the vehicle seat S used by a motor vehicle was illustrated as a vehicle seat, this invention is not limited to this, For example, the sheet | seat used for a ship, an aircraft, etc. It may be.

  In the embodiment, the first frame constitutes the left side frame 20L and the second frame constitutes the right side frame 20R. However, the present invention is not limited to this. For example, the first frame is the right side frame. And the second frame may constitute the left side frame. Further, for example, the first frame may constitute a seat cushion frame, and the second frame may constitute a seat back frame.

  In the said embodiment, the side support drive mechanism 1 was illustrated as a drive mechanism for vehicles. In other words, in the said embodiment, side support apparatus 3L, 3R was illustrated as a drive device. However, the present invention is not limited to this. For example, the drive device may be a device other than the side support device. Further, the first drive device and the second drive device may be devices having the same configuration (including a symmetric configuration) or may be devices having different configurations.

  Next, a reference form will be described. In the following embodiments, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  First, the first reference embodiment will be described. As shown in FIG. 14, in this embodiment, the pressure receiving member 10 extends in a plate-like pressure receiving portion 11 facing the back of the occupant and obliquely forward outward in the left-right direction from the upper portions of the left and right ends of the pressure receiving portion 11. And left and right support portions 12 formed in a plate shape. Each support portion 12 has a through hole 12A in the vicinity of the central portion thereof, and the pressure receiving portion 11 has a through hole 11A in the vicinity of the same height position as the through hole 12A at both the left and right end portions thereof.

  The pressure receiving member 10 is formed so as to be elastically deformable from resin or the like, whereby each support portion 12 (only one is shown) is near the boundary portion between the pressure receiving portion 11 and the support portion 12 as shown in FIG. It can swing left and right with fulcrum as the fulcrum. The support portion 12 swings when the cable 86 is pulled or loosened from the pulled state by the driving force from the actuator AC (see FIG. 14).

  The cable 86 is slidably inserted into the tubular sheath 86B with one end and the other end exposed to the outside. The other end of the cable 86 is wound around a reel (not shown) in the actuator AC. Each of the cables 86 passes through the rear of the pressure receiving portion 11 and is inserted into the through hole 11A of the pressure receiving portion 11 and pulled out to the front side of the pressure receiving portion 11, and one end thereof is passed through the through hole 12A of the support portion 12. The support portion 12 is pulled out to the rear side. A substantially cylindrical engaging portion 86A is attached to one end portion of the cable 86, and the engaging portion 86A is engaged with the support portion 12, whereby the cable 86 has one end portion attached to the support portion 12. It is fixed. Further, the end portion 86E of the sheath 86B is fixed to the pressure receiving portion 11 in a state of being engaged with the through hole 11A of the pressure receiving portion 11.

  When the actuator AC is driven and the cable 86 is pulled, the support portion 12 to which one end portion of the cable 86 is fixed swings inward in the left-right direction, as shown by a chain line in FIG. Thereby, the cushion material 70 and the skin material 75 are pressed by the support part 12 and swell toward the occupant side, so that the support position of the occupant can be changed. On the other hand, when the actuator AC is driven from the state shown by the chain line in FIG. 15 and loosens from the state where the cable 86 is pulled, as shown by the solid line in FIG. 15 due to the load from the occupant or the restoring force of the support 12 itself. The support portion 12 swings outward in the left-right direction. Thereby, it can retract from the state which the cushion material 70 and the skin material 75 expanded, and a passenger | crew's support position can be changed.

  In the present embodiment, since the support portion 12 having the same function as the left and right side support devices 3L and 3R is provided integrally with the pressure receiving member 10, the number of parts of the vehicle seat can be reduced. it can. Further, by replacing the pressure receiving member 10 (see FIG. 2) of the above-described embodiment with the pressure receiving member 10 of the present embodiment, it is possible to change the occupant support position even in a vehicle seat that does not include the side support devices 3L and 3R. It can be.

  Next, a second reference embodiment will be described. As shown in FIGS. 16A and 16B, in the present embodiment, the vehicle seat includes left and right side support devices 100 configured substantially symmetrically (only one is shown). The side support device 100 mainly includes a fixing member 110 fixed to the front side of the side frame 20 and a support member 120 that supports an occupant via a cushion member 70 and the like, and the cable 86 is driven by a driving force from an actuator (not shown). It is comprised so that it may drive by releasing from the state pulled or pulled.

  The fixing member 110 is a substantially plate-shaped member, and mainly includes a shaft support portion 111 provided at the front end portion and a guide surface 112 that guides the movement of the rear end portion of the support member 120. . In addition, the support member 120 is a member whose front side portion is bifurcated into left and right, is located on the plate-like support portion 121 that supports the occupant, and on the outer side in the left-right direction of the support portion 121, and the front end portion thereof is the fixing member 110. Mainly includes a pressing portion 122 that is rotatably supported by the shaft support portion 111 and a cable holding portion 123 that holds the cable 86.

  The cable 86 is slidably inserted into the tubular sheath 86B with one end and the other end exposed to the outside, and the other end is illustrated as in the case of the first reference embodiment described above. Not connected to the actuator. As shown in FIG. 17A (the illustration of the cable is omitted), a substantially cylindrical held portion 86C is provided at the end of the sheath 86B.

  The cable holding portion 123 has a holding recess 123A with which the held portion 86C can be engaged. The holding recess 123A includes a pair of upper and lower first walls 123B extending rearward from the rear end of the support portion 121, and a second wall 123C formed so as to connect the pair of upper and lower first walls 123B. Has been. The second wall 123C has a recessed surface extending in the vertical direction and having a substantially arc shape in cross section, and the pair of upper and lower first walls 123B allow sliding between the second wall 123C and the held portion 86C. In this state, the held portion 86C is configured to be held from above and below. As a result, as shown in FIG. 17B, the held portion 86C, which is the end portion of the sheath 86B, can be turned to the left and right with respect to the support member 120 about the axis along the vertical direction in the drawing.

  As shown in FIG. 16A, one end portion of the cable 86 extending from the held portion 86 </ b> C is fixed to the fixing member 110 in the vicinity of the rear of the shaft support portion 111.

  When the actuator is driven and the cable 86 is pulled, the rear end portion of the support portion 121 approaches the front end portion of the pressing portion 122 while moving forward along the guide surface 112. Then, as shown in FIG. 16B, the front end portion of the support portion 121 is inward in the left-right direction by being elastically bent so that the vicinity of the center portion in the front-rear direction of the pressing portion 122 protrudes inward in the left-right direction. Move to. Thereby, the cushion material 70 and the skin material 75 are pressed by the support part 12 and swell toward the occupant side, so that the support position of the occupant can be changed. On the other hand, when the actuator is driven from the state shown in FIG. 16B and the cable 86 is loosened from the pulled state, the front end portion of the support portion 121 is moved in the left-right direction due to the load from the occupant and the restoring force of the cushion material 70 and the like. Move outward. Thereby, it can retract from the state which the cushion material 70 and the skin material 75 expanded, and a passenger | crew's support position can be changed.

  In this embodiment, since the end portion (held portion 86C) of the sheath 86B is rotatable to the left and right with respect to the support member 120, when the side support device 100 (support member 120) is driven, the sheath 86B or It is possible to suppress an unnecessary load from being applied to the cable 86.

Claims (20)

A vehicle seat having a seat cushion and a seat back,
Left and right side frames constituting left and right frames of the seat back;
A support that is disposed adjacent to one of the left and right side frames in the seat back and is configured such that a front end portion thereof is rotatable to the right and left about a rear end portion with respect to the one side frame. Members,
The one side frame is disposed between the one side frame and the support member, and is configured to be movable in a direction in which one end is moved toward and away from the other end along the side surface of the one side frame. When moving in the approaching direction, the intermediate part between the one end and the other end is bent so that it protrudes inward in the left-right direction, and the support member is pressed inward in the left-right direction A vehicle seat comprising: a pressing member that rotates.   The intermediate portion protrudes toward the inner side in the left-right direction formed adjacent to the bent portion with the bent portion sandwiched between the bent portion when the one end moves in a direction approaching the other end. The vehicle seat according to claim 1, further comprising a pair of projecting portions. Wherein the pressing member comprises at least 2 components,
The portion that bends when the one end moves in a direction close to the other end is configured by the two parts being pivotably connected to each other. Vehicle seat. Wherein the pressing member and the support, vehicle seat according to any one of claims 1 to 3, characterized in that it comprises a fixed member fixed to said one side frame.   The support member includes an upper supported portion disposed on the fixed member, and a lower supported portion disposed below the fixed member, and the upper supported portion and the lower supported portion. The vehicle seat according to claim 4, wherein the vehicle is rotatably supported by the fixing member. The rear end portion of the one side frame is bent inward in the left-right direction,
The said fixing member is being fixed to the side part of the said one side frame in the state contact | abutted to the inner surface of the rear-end part of the said one side frame, The said one side frame is characterized by the above-mentioned. Vehicle seat.   The vehicle seat according to claim 1, wherein the support member has a reinforcing rib. An airbag device for protecting the occupant from the side;
A baffle for regulating the deployment direction of the bag body of the airbag device,
The vehicle seat according to any one of claims 1 to 7, wherein the one side frame includes two embroidery attachment portions that are vertically displaced for attaching the embroidery.   The pivot shaft of the support member is disposed at a position overlapping with a rear end of the one side frame as viewed from the left or right direction or at a rear side of a rear end of the one side frame. The vehicle seat according to any one of claims 1 to 8. The support member has a plate-like portion at least at the edge of the front end portion,
10. The bead according to claim 1, wherein a bead having a thickness larger than that of other portions of the plate-like portion is formed along the edge of the plate-like portion. The vehicle seat according to item 1. A vehicle driving mechanism for driving the driving device by loosening the cable from the pulled or pulled state by the driving force from the driving force generating device;
The vehicle drive mechanism is
A first cable and a second cable;
A first drive device that is driven by being loosened from a state in which one end portion of the first cable is engaged and the other end portion of the first cable is pulled or pulled;
A second drive device that is engaged by one end portion of the second cable and is driven by being loosened from a state in which the other end portion of the second cable is pulled or pulled;
The vehicle seat according to any one of claims 1 to 10, wherein one end of the first cable and the other end of the second cable are connected to each other. The first cable has an engaging portion for engaging one end of the first cable with the first driving device,
The second cable is configured to be engageable with the engagement portion, and a connection portion that connects the other end portion of the second cable to one end portion of the first cable when engaged with the engagement portion. The vehicle seat according to claim 11, further comprising:   The vehicle seat according to claim 11, wherein the first cable and the second cable are integrally formed.   The direction in which one end of the first cable enters the first driving device and the direction in which the one end of the second cable enters the second driving device are the same. The vehicle seat according to any one of the above.   15. The vehicle according to claim 14, wherein the second cable is pulled out from the first drive device on a side opposite to a side where the first cable enters the first drive device. Sheet. A first frame and a second frame;
The other end of the first cable is connected to the driving force generator,
The driving force generating device and the first driving device are attached to the first frame,
The second driving device is attached to the second frame;
The first cable is arranged to operate along a longitudinal direction of the first frame;
The vehicle seat according to any one of claims 11 to 15, wherein the second cable is arranged so as to operate along a longitudinal direction of the second frame. The first frame constitutes one of the left and right side frames, and the second frame constitutes the other of the left and right side frames,
A load support member disposed between the first frame and the second frame for supporting a load from an occupant;
The vehicle seat according to claim 16, wherein the second cable passes behind or under the load support member. At least one of the first driving device and the second driving device is movable in a direction in which one end to which one end of the cable is connected is moved closer to and away from the other end by the operation of the cable. A bending member that bends so that an intermediate portion between the one end and the other end protrudes in a predetermined direction when moving in a direction approaching the other end;
The vehicle seat according to any one of claims 11 to 17, wherein the cable is disposed along the bending member on a side opposite to the predetermined direction with respect to the bending member. . At least one of the first driving device and the second driving device has a moving member that moves by being pressed against the intermediate portion by bending of the bending member,
The vehicle seat according to claim 18, wherein the moving member is provided so as to cover an engagement portion between one end of the cable and the one end of the bending member.   The vehicle seat according to claim 19, further comprising a guide portion for guiding movement of the one end of the bending member.

Images