JP7079401B2 - Vehicle seat device - Google Patents

Description

The present invention relates to a vehicle seat device including a rotation mechanism that rotates the seat body from a seating position facing forward of the vehicle to a boarding / alighting position facing the door opening side.

A vehicle seat device related to this is described in Patent Document 1. The vehicle seat device described in Patent Document 1 includes a seat slide mechanism that slides the seat body in the front-rear direction of the vehicle, and a seat rotation mechanism that rotates the seat body. The seat rotation mechanism is configured to rotate the seat body at a fixed position on the slide table of the seat slide mechanism.

With the above configuration, for example, when rotating the seat body from the seating position to the boarding / alighting position while avoiding the center pillar of the vehicle, first, the seat body is moved to the vehicle by using the seat slide mechanism to a position where it does not interfere with the center pillar. Slide it back and forth. Next, the seat body is rotated from the seating position to the boarding / alighting position using the seat rotation mechanism.

Japanese Unexamined Patent Publication No. 2001-206113

In this way, in order to rotate the seat body from the seating position to the boarding / alighting position, it is necessary to operate the seat slide mechanism and the seat rotation mechanism. That is, since a seat slide mechanism and a seat rotation mechanism are required to rotate the seat body from the seating position to the boarding / alighting position, the vehicle seat device becomes large-scale, and simplification of the mechanism is required.

The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to simplify the mechanism for rotating the seat body between the seating position and the boarding / alighting position.

The above-mentioned problems are solved by each invention. The first invention is a vehicle seat device including a rotation mechanism for rotating a seat body from a seating position facing forward of the vehicle to a boarding / alighting position facing the door opening side, wherein the rotation mechanism includes a non-rotatable fixing member and the above-mentioned. It is provided with a four-node link mechanism installed between rotating members that support the seat body, and one end side of the four-node link mechanism is rotatably connected to the fixing member to be connected to the fixing member in a rotatably state, in addition to the four-node link mechanism. The end side is rotatably connected to the rotating member, and the seat body and the rotating member rotate while moving the rotation center with respect to the fixing member by the operation of the four - node link mechanism. It has a rotation lock device that locks the rotation of the rotation member at a predetermined position, and a guide mechanism that guides the member that moves with the rotation of the rotation member in the rotation lock device. The rotation lock device includes a rotation lock mechanism and a striker, and the rotation lock mechanism is rotatably attached to a predetermined position of the rotation member or the seat body, and the fixing member. A plurality of the strikers configured to engage with the rotation lock mechanism are attached along the movement locus of the rotation lock mechanism accompanying the rotation of the rotation member, and each of the fixing members has a movement locus. A posture holding mechanism for rotating the rotation lock mechanism with respect to the rotation member or the seat body is provided so that the engagement posture of the rotation lock mechanism with respect to the striker becomes constant .

According to the present invention, by operating the four-node link mechanism of the rotation mechanism, the seat body and the rotating member rotate while moving the rotation center with respect to the fixing member. Therefore, the seat body can be rotated by the independent operation of the rotation mechanism, for example, while avoiding obstacles in the front-rear direction. Therefore, it is no longer necessary to avoid obstacles by interlocking the rotation mechanism that rotates the seat body with the rotation center axis held in place and the front-rear slide mechanism, as in the past, and the seat body is placed in the seating position and getting on and off. The mechanism for rotating between positions can be simplified.
Further, even if the rotating member rotates while moving the rotation center axis together with the seat body, the engagement posture of the rotation lock mechanism with respect to each striker becomes constant by the action of the posture holding mechanism. Therefore, it is possible to prevent poor engagement between the rotation lock mechanism and each striker.

According to the second invention , the posture holding mechanism is connected to the rotating member in a rotatable state, and is provided with a rotating bracket of a rotation lock mechanism provided with a plurality of rolling rollers, and the rotating bracket. The fixing member is provided with a guide rail of the guide mechanism in which a plurality of rolling rollers are engaged in a rollable state, so that the guide rail extends along a movement locus of the rotation lock mechanism. It is fixed. That is, as the rolling roller of the rotating bracket of the rotation lock mechanism rolls along the guide rail with the rotation of the rotating member, the rotating bracket rotates relative to the rotating member, and the bracket. The posture of is maintained in the posture along the guide rail.

According to the third invention , the guide rail and the four-node link mechanism are in the same plane. Therefore, the height position of the seat body can be kept low.

According to the fourth invention , the fixing member is a front-rear slide base that can slide in the front-rear direction with respect to the vehicle floor. Therefore, the position can be adjusted in the front-rear direction of the vehicle while the seat body is in the seated position.

According to the present invention, it is possible to simplify the mechanism for rotating the seat body between the seating position and the boarding / alighting position.

FIG. 3 is a side view (I-I arrow view of FIG. 3) in which the seat body is in the seating position facing forward of the vehicle in the vehicle seat device according to the first embodiment of the present invention. It is a side view (II-II arrow view of FIG. 3) in which the seat body is in the seating position facing forward of the vehicle in the vehicle seat device. It is a top view which shows the operation of the rotation mechanism (four-section link mechanism) of the vehicle seat device. It is a top view which shows the operation of the rotation mechanism (four-section link mechanism) of the vehicle seat device. It is a top view which shows the operation of the rotation mechanism (four-section link mechanism) of the vehicle seat device. It is a top view which shows the operation of the rotation mechanism (four-section link mechanism) of the vehicle seat device. It is a top view which shows the rotation operation of the rotary table of the said vehicle seat device. It is a perspective view (the perspective view seen from the diagonally upper left side) which shows the engagement state between the rotation lock mechanism and a striker. It is a perspective view (the perspective view seen from the diagonally upper right side) which shows the engagement state between the rotation lock mechanism and a striker. It is a vertical cross-sectional view (XX arrow cross-sectional view of FIG. 9) which shows the engaging state of a rotation lock mechanism and a striker.

[Embodiment 1]
Hereinafter, the vehicle seat device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 10. The vehicle seat device 10 according to the present embodiment is a seat device installed on the left side of the vehicle interior of the vehicle. Here, the front-rear, left-right, and up-down shown in the figure correspond to the front-back, left-right, and up-down of the vehicle provided with the vehicle seat device 10.

<Overview of vehicle seat device 10>
As shown in FIG. 1, the vehicle seat device 10 has a seat body 20 on which an occupant sits, a front-rear slide mechanism 30 that slides the seat body 20 in the front-rear direction of the vehicle, and a seat body 20 on the front-rear slide mechanism 30. It is provided with a rotation mechanism 40 for rotating. Further, as shown in FIG. 2, the vehicle seat device 10 includes a rotation lock device (lock mechanism main body 50, strikers 61 to 63, etc.) that locks the rotation of the rotation mechanism 40.

<About the front-back slide mechanism 30>
As shown in FIG. 1, the front-rear slide mechanism 30 includes a pair of left and right lower rails 32 fixed on the vehicle floor F and extending in the front-rear direction of the vehicle, and a pair of left and right upper rails that slide back and forth along the pair of left and right lower rails 32. It is equipped with 33. A pair of left and right upper rails 33 are fixed to the lower surface of the front / rear slide base 35. Here, the upper rail 33 is configured to be slid-locked to the lower rail 32 in multiple stages by the action of the multi-stage lock mechanism (not shown).

<About the rotation mechanism 40>
The rotation mechanism 40 is a mechanism for rotating the seat body 20 while moving the center of rotation forward between the seating position facing forward of the vehicle and the boarding / alighting position facing the door opening on the left side. As shown in FIG. 1, the rotary mechanism 40 supports the rotary table 45 that supports the seat body 20 and the rotary table 45 so that the rotary table 45 can be rotated while being tilted forward on the front-rear slide base 35 of the front-rear slide mechanism 30. It is equipped with a node link mechanism 40r. The four-node link mechanism 40r is composed of a first link 41 and a second link 42, and is arranged on an inclined surface of the slide base 35.

As shown in FIG. 3, the base end side of the first link 41 constituting the four-bar linkage mechanism 40r can be rotated to the central portion in the width direction of the front portion of the front-rear slide base 35 via the lower connecting shaft 41d. It is connected in the state. The tip end side of the first link 41 is rotatably connected to the central portion of the rotary table 45 via the upper connecting shaft 41u. In FIG. 3 and the like, the rotary table 45 is represented by a two-dot chain line. Further, the base end side of the second link 42 constituting the four-node link mechanism 40r is rotatably connected to the central portion in the width direction of the rear end portion of the front-rear slide base 35 via the lower connecting shaft 42d. ing. The tip end side of the second link 42 is rotatably connected to the left rear corner of the rotary table 45 via the upper connecting shaft 42u. As shown in FIG. 1, the height dimension difference between the first link 41 and the second link 42 on the proximal end side and the distal end side is equal to the clearance dimension between the front-rear slide base 35 and the rotary table 45. Is set to.

With the above configuration, when an external force is applied to the seat body 20 in the seated position in the counterclockwise direction, as shown in FIGS. It receives an external force to the left through it. As a result, the first link 41 rotates clockwise around the lower connecting shaft 41d. Further, due to the clockwise rotation of the first link 41 of the four-node link mechanism 40r, the tip end side of the second link 42 receives an external force in the rear direction via the rotary table 45. As a result, the second link 42 rotates slightly counterclockwise about the lower connecting shaft 42d. As a result, the seat body 20 and the rotary table 45 rotate to the left while moving the center of rotation (see FIG. 4).

Further, when an external force is continuously applied to the seat body 20 in the counterclockwise direction, as shown in FIGS. Upon receiving an external force, the first link further rotates clockwise around the lower connecting shaft 41d. Further, due to the clockwise rotation of the first link 41 of the four-node link mechanism 40r, the tip end side of the second link 42 is pulled forward via the rotary table 45, and the second link 42 rotates clockwise around the lower connecting shaft 42d. Move. As a result, the seat body 20 and the rotary table 45 rotate further to the left while moving the center of rotation forward.

In this way, when an external force is applied to the seat body 20 in the seated position in the counterclockwise direction, as shown in FIG. 7, the seat body 20 and the rotary table 45 move the center of rotation forward and to the left. Rotate to. Therefore, with the front-rear slide mechanism 30 being slid-locked, the seat body 20 and the rotary table 45 can be rotated to the left while being moved forward by the rotation mechanism 40. That is, by operating the rotation mechanism 40 independently, for example, it is possible to rotate the seat body while avoiding obstacles (not shown) such as the center pillar. The seat body 20 and the rotary table 45 gradually tilt forward as they rotate to the left. Here, A1 to A4 and B1 to B4 in FIG. 7 represent movement loci between the right front portion and the left front portion of the rotary table 45 when the rotary table 45 rotates to the left, respectively.

<Overview of rotation lock device>
The rotation lock device is a device for locking the rotation of the rotary table 45 at a predetermined position. The rotation lock device includes a lock mechanism main body 50 provided on the rotary table 45, first to third strikers 61 to 63 provided on the front and rear slide bases 35, an unlock mechanism 70, and a lock mechanism main body 50. It is provided with a posture holding mechanism 80 for holding the posture of.

<About the lock mechanism body 50>
As shown in FIG. 3 and the like, the lock mechanism main body 50 is attached to the lower surface of the right rear corner of the rotary table 45. As shown in FIGS. 8 to 10, the lock mechanism main body 50 is a rotation connected to a fixing bracket 52 fixed to the lower surface of the rotary table 45 in a rotatable state under the fixing bracket 52. It is equipped with a bracket 53. In addition, in FIGS. 8 and 9, the rotary table 45 is omitted. The rotating bracket 53 includes a front-rear rolling horizontal roller 53y and a rolling vertical roller 53w between the front-rear rolling horizontal rollers 53y. Then, as shown in FIG. 10, the rolling horizontal roller 53y and the rolling vertical roller 53w before and after the rotating bracket 53 are engaged with the guide rail 81 of the posture holding mechanism 80 in a rollable state. ..

As shown in FIG. 3, the guide rail 81 of the posture holding mechanism 80 is positioned along the movement locus of the lock mechanism main body 50 when the rotary table 45 rotates by the action of the four-node link mechanism 40r. , It is fixed on the front and rear slide base 35. Therefore, when the rotary table 45 rotates, the front-rear rolling horizontal rollers 53y and the rolling vertical rollers 53w in the rotating bracket 53 of the lock mechanism main body 50 roll along the guide rail 81. As a result, even if the rotary table 45 rotates while moving the center of rotation, the rotary bracket 53 of the lock mechanism main body 50 rotates relative to the rotary table 45 (fixed bracket 52) and rotates. The posture of the bracket 53 is maintained in a posture (engaged posture) along the guide rail 81.

As shown in FIG. 8 and the like, the lock mechanism main body 50 includes hooks 55 configured to be engageable with the first to third strikers 61 to 63, respectively. The hook 55 is formed with a claw portion 55k that engages with the first to third strikers 61 to 63 at the front end position, and a wire receiving portion 55w to which the wire 72 of the unlocking mechanism 70 is connected is formed at the rear end position. It is formed. The central portion of the hook 55 is rotatably connected to the lower side of the rotating bracket 53.

The hook 55 is connected to the rotating bracket 53 so that it can rotate between the locked position (see FIG. 8) and the unlocked position. Further, a coil spring 54 that urges the hook 55 in the lock position direction is mounted between the hook 55 and the rotating bracket 53. Then, with the hook 55 in the locked position, as shown in FIG. 8, the claw portion 55k of the hook 55 can be engaged with the first to third strikers 61 to 63 by the spring force of the coil spring 54.

As shown in FIG. 8, the rotating bracket 53 is provided with a tube receiving portion 53u to which the end portion of the wire supporting tube 74 of the unlocking mechanism 70 is connected. The tube receiving portion 53u of the rotating bracket 53 is arranged at a position facing the wire receiving portion 55w of the hook 55. As a result, when the lock release lever (not shown) is operated on the seat body 20 side and the wire 72 is pulled, the wire receiving portion 55w of the hook 55 approaches the tube receiving portion 53u of the rotating bracket 53. As a result, the hook 55 rotates clockwise with respect to the rotating bracket 53 against the spring force of the coil spring 54 in FIG. 8, and moves from the locked position to the unlocked position. As a result, the claw portion 55k of the hook 55 comes off from the first to third strikers 61 to 63.

<About the 1st to 3rd strikers 61 to 63>
The first to third strikers 61 to 63 are strikers having the same structure, and are fixed along the guide rail 81 of the posture holding mechanism 80 on the front-rear slide base 35 as shown in FIG. 3 and the like. As shown in FIG. 8, the first to third strikers 61 to 63 are composed of a vertical pin 61p with which the hook 55 of the lock mechanism main body 50 is engaged and a support bracket 61b for supporting the vertical pin 61p. .. The vertical pin 61p of the first striker 61 is positioned at a position where the hook 55 of the lock mechanism main body 50 engages when the seat body 20 is in the seating position facing forward of the vehicle. Further, the vertical pins 61p of the second striker 62 and the third striker 63 are positioned at positions where the hooks 55 of the lock mechanism main body 50 are engaged when the seat main body 20 is rotated to a predetermined position, respectively. ing.

<Handling of vehicle seat device 10>
When the seat body 20 of the vehicle seat device 10 is in the seating position facing forward of the vehicle, the hook 55 of the lock mechanism body 50 is engaged with the vertical pin 61p of the first striker 61 as shown in FIG. , The seat body 20 is held so as not to rotate. In this state, the seat body 20 can only slide back and forth by the front and rear slide mechanism 30. That is, by releasing the slide lock of the front-rear slide mechanism 30 and applying a force to the seat body 20 in the front-rear direction, the front-rear position of the seat body 20 can be adjusted by the action of the front-rear slide mechanism 30.

Next, when the seat body 20 is rotated in the direction of the door opening, the lock release lever (not shown) of the seat body 20 is operated while the slide lock of the front / rear slide mechanism 30 is working. As a result, the wire 72 of the lock release mechanism 70 is pulled, and in FIG. 8, the hook 55 rotates clockwise from the lock position to the lock release position against the spring force of the coil spring 54, and the hook 55 slides back and forth base 35. It comes off from the vertical pin 61p of the first striker 61 above. As a result, when a force is applied to the seat body 20 in the counterclockwise direction, the seat body 20 rotates by the action of the rotation mechanism 40. After the seat body 20 is rotated, the hook 55 of the lock mechanism body 50 is separated from the first striker 61. Therefore, even if the hook 55 is returned to the lock position by the spring force of the coil spring 54, the seat body 20 rotates. Is not disturbed.

When a force is applied to the seat body 20 in the counterclockwise direction, as shown in FIGS. 3 and 4, the tip end side of the first link 41 of the four-bar linkage mechanism 40r exerts an external force to the left via the rotary table 45. In order to receive the first link 41, the first link 41 rotates clockwise about the lower connecting shaft 41d. Further, due to the right rotation of the first link 41, the tip end side of the second link 42 receives an external force in the rear direction via the rotary table 45, so that the second link 42 rotates slightly to the left with respect to the lower connecting shaft 42d. do. As a result, the seat body 20 and the rotary table 45 rotate to the left while moving the center of rotation.

Further, as the rotary table 45 rotates in the left direction, the rolling horizontal roller 53y and the rolling vertical roller 53w of the lock mechanism main body 50 attached to the right rear corner of the rotary table 45 form an attitude holding mechanism 80. Rolls along the guide rail 81 of. As a result, even if the rotary table 45 rotates, the rotary bracket 53 of the lock mechanism main body 50 rotates relative to the rotary table 45, and the posture of the rotary bracket 53 and the hook 55 is the guide rail 81. It is held in a posture along the line.

Then, when the seat body 20 and the rotary table 45 (hereinafter referred to as the seat body 20 and the like) are rotated to the positions shown in FIG. 4, the hook 55 of the lock mechanism body 50 is subjected to the vertical pin of the second striker 62 on the front-rear slide base 35. It engages with 61p by the spring force of the coil spring 54. As a result, the seat body 20 and the like are rotationally locked at the position during rotation. When releasing the rotation lock, the lock release lever (not shown) of the lock release mechanism 70 is operated as described above.

Then, by continuously applying a force to the seat body 20 in the counterclockwise direction, the seat body 20 and the like rotate to the left while moving the center of rotation forward. That is, as shown in FIG. 5, the tip end side of the first link 41 of the four-node link mechanism 40r receives an external force to the left via the rotary table 45, and the first link 41 further turns clockwise around the lower connecting shaft 41d. Move. Further, due to the clockwise rotation of the first link 41, the tip end side of the second link 42 is pulled forward via the rotary table 45, and the second link 42 rotates clockwise around the lower connecting shaft 42d. As a result, the seat body 20 and the like rotate further to the left while moving the center of rotation forward.

Then, when the seat body 20 rotates to the position shown in FIG. 5, the hook 55 of the lock mechanism body 50 engages with the vertical pin 61p of the third striker 63 on the front-rear slide base 35 by the spring force of the coil spring 54. As a result, the seat body 20 and the like are rotationally locked at the position during rotation. At this position, passengers can get on and off the seat body 20. When rotating the seat body 20 to the left to the position shown in FIG. 6, the lock release lever (not shown) of the lock release mechanism 70 is operated as described above. Further, when returning the seat body 20 to the seating position facing forward of the vehicle, a force is applied to the seat body 20 in the clockwise rotation direction with the rotation lock released by the lock release lever. As a result, the seat body 20 and the like are returned to the seating position with the same locus by the action of the four-node link mechanism 40r.

<Correspondence between the terms used in the embodiment and the terms of the present invention>
The front-rear slide base 35 of the front-rear slide mechanism 30 corresponds to the non-rotatable fixing member of the present invention. Further, the rotary table 45 of the rotary mechanism 40 corresponds to the rotary member of the present invention. Further, the rotation bracket 53 and the hook 55 of the lock mechanism main body 50 correspond to the rotation lock mechanism of the present invention. Further, the rolling horizontal roller 53y and the rolling vertical roller 53w of the lock mechanism main body 50 correspond to the rolling roller of the present invention. Further, the guide rail 81 corresponds to the guide mechanism of the present invention.

<Advantages of the vehicle seat device 10 according to this embodiment>
According to the present invention, the seat body 20 and the rotary table 45 (rotating member) move the center of rotation forward with respect to the front-rear slide base 35 (fixing member) by operating the four-node link mechanism 40r of the rotating mechanism 40. It can rotate while letting it rotate. Therefore, the seat body 20 can be rotated by the independent operation of the rotation mechanism 40, for example, while avoiding obstacles in the front-rear direction. Therefore, it is no longer necessary to avoid obstacles by interlocking the rotation mechanism that rotates the seat body with the rotation center axis held in a fixed position and the front-rear slide mechanism as in the conventional case, and the seat body 20 is set to the seating position. The mechanism for rotating between boarding / alighting positions can be simplified.

Further, the rotary bracket 53 (rotary lock mechanism) of the lock mechanism main body 50 is attached to the rotary table 45 in a rotatable state, and the rolling horizontal roller 53y or the like of the rotary bracket 53 is a front-rear slide base. It is engaged with the guide rail 81 on the 35 in a rollable state. Therefore, as the rotary table 45 rotates, the rolling lateral roller 53y of the rotary bracket 53 rolls along the guide rail 81, so that the rotary bracket 53 rotates relative to the rotary table 45. Move. As a result, the posture of the hook 55 connected to the rotating bracket 53 is maintained in the posture along the guide rail 81. As a result, the plurality of strikers 61 to 63 provided along the guide rail 81 are surely engaged with the hook 55 connected to the rotating bracket 53, and the hook 55 and the strikers 61 to 63 are engaged with each other. It is possible to prevent misalignment. Further, since the four-bar link mechanism 40r of the rotation mechanism 40 and the guide rail 81 are both arranged side by side on the front-rear slide base 35, the height position of the seat body 20 can be kept low.

<Change example>
The present invention is not limited to the above embodiment, and changes can be made without departing from the gist of the present invention. For example, in the present embodiment, an example is shown in which the four-node link mechanism 40r of the rotation mechanism 40 is provided on the front-rear slide base 35 of the front-rear slide mechanism 30. However, it is also possible to provide a four-bar link mechanism 40r on the vehicle floor F and a front-rear slide mechanism 30 and a seat body 20 on the rotary table 45. Further, in the present embodiment, an example is shown in which a four-node link mechanism 40r of the rotation mechanism 40 is provided on the inclined surface of the front-rear slide base 35, and the seat body 20 is rotated while being tilted forward. However, it is also possible to provide the four-node link mechanism 40r of the rotation mechanism 40 on the horizontal plane of the front-rear slide base 35 and to rotate the seat body 20 horizontally. Further, in the present embodiment, an example of manually rotating the seat body 20 is shown. However, for example, it is also possible to rotate the seat body 20 by rotating the four-node link mechanism 40r using the rotational force of the motor. Further, in the present embodiment, an example is shown in which the strikers 61 to 63 of the rotation lock device are provided at three places along the guide rail 81 on the front-rear slide base 35. However, the number and arrangement of strikers can be changed as appropriate. Further, in the present embodiment, an example in which the lock mechanism main body 50 is attached to the rotary table 45 is shown, but it can also be attached to the seat main body 20.

10 ... Vehicle seat device 20 ... Seat body 30 ... Front and rear slide mechanism 35 ... Front and rear slide base (fixing member)
40 ... Rotation mechanism 40r ... Four-node link mechanism 41 ... First link 42 ... Second link 45 ... Rotation table (rotating member)
50 ... Lock mechanism main body 52 ... Fixed bracket 53 ... Rotating bracket (Rotating lock mechanism)
53y ... Rolling horizontal roller (rolling roller)
53w ... Rolling vertical roller (rolling roller)
55 ... Hook (rotation lock mechanism)
61 ... 1st striker 62 ... 2nd striker 63 ... 3rd striker 80 ... Posture holding mechanism 81 ... Guide rail (guide mechanism)

Claims (4)

It is a vehicle seat device provided with a rotation mechanism that rotates the seat body from the seating position facing the vehicle forward to the boarding / alighting position facing the door opening side.
The rotation mechanism includes a four-node link mechanism installed between a non-rotatable fixing member and a rotation member that supports the seat body.
One end side of the four-node link mechanism is rotatably connected to the fixing member, and the other end side of the four-node link mechanism is rotatably connected to the rotating member.
By the operation of the four-node link mechanism, the seat body and the rotating member rotate while moving the rotation center with respect to the fixing member .
A rotation lock device that locks the rotation of the rotating member at a predetermined position,
A guide mechanism for guiding a member that moves with the rotation of the rotating member in the rotation lock device, and
Have and
The rotation lock device includes a rotation lock mechanism and a striker.
The rotation lock mechanism is rotatably attached to the rotating member or a predetermined position of the seat body.
A plurality of the strikers configured to engage with the rotation lock mechanism are attached to the fixing member along the movement locus of the rotation lock mechanism accompanying the rotation of the rotation member.
The fixing member is provided with a posture holding mechanism for rotating the rotation lock mechanism with respect to the rotation member or the seat body so that the engagement posture of the rotation lock mechanism with respect to each striker becomes constant. Vehicle seat device . The vehicle seat device according to claim 1.
The posture holding mechanism is
A rotary bracket of the rotary lock mechanism, which is rotatably connected to the rotary member and provided with a plurality of rolling rollers,
The guide rail of the guide mechanism, in which a plurality of rolling rollers of the rotating bracket are engaged in a rollable state,
Equipped with
A vehicle seat device fixed to the fixing member so that the guide rail extends along the movement locus of the rotation lock mechanism . The vehicle seat device according to claim 2.
The guide rail and the four-section link mechanism are vehicle seat devices in the same plane . The vehicle seat device according to any one of claims 1 to 3.
The fixing member is a vehicle seat device that is a front-rear slide base capable of sliding in the front-rear direction with respect to the vehicle floor .

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