JP2019011000A - Seat device for vehicle - Google Patents

Abstract

To reduce manufacturing cost by executing sliding and elevation of a seat main body with a simple structure.SOLUTION: A seat device for a vehicle includes a seat main body 12, a support table (rotary table) 35 for supporting the seat main body 12, and a moving mechanism 40 which moves the seat main body 12 between a storage position and a get-on/off position of a door opening part D. The moving mechanism 40 includes a front side link 44 and a rear side link 43 which are connected so as to vertically rotate with respect to the rotary table 35, and a support link 45 which connects rotation free end sides of the front side link 44 and the rear side link 43 and supports the seat main body 12. A virtual straight line, which connects the rotation free end sides of the front side link 44 and the rear side link 43 in a state that the front side link 44 and the rear side link 43 are brought down in a forward direction of a seat, is inclined forward, and a rotation center of the front side link 44 is positioned on a lower side than the virtual straight line.SELECTED DRAWING: Figure 5

Description

  The present invention includes a seat body, a support table that supports the seat body in a vehicle interior, and a moving mechanism that moves the seat body between a storage position on the support table and a boarding / alighting position of a vehicle door opening. The present invention relates to a vehicle seat device.

  A vehicle seat apparatus related to this is described in Patent Document 1. As shown in FIG. 12, a vehicle seat device 100 of Patent Document 1 includes a seat main body 102 and a rotary table 104 that rotates the seat main body 102 between a seating position facing the front of the vehicle and a lateral position facing the door opening. And. The vehicle seat device 100 includes an outer slide mechanism 105 that moves the seat body 102 from the lateral position to the front of the seat (leftward in FIG. 12), and an elevating mechanism 107 that raises and lowers the seat body 102 outside the door opening. And.

  The outer slide mechanism 105 and the lifting mechanism 107 are configured to slide the seat body 102 up and down by the meshing action of the racks 105r and 107r and the pinion 108. Here, the pinion 108 and the drive source of the pinion 108 are shared by the outer slide mechanism 105 and the lifting mechanism 107, and are provided below the rear portion of the seat body 102. The outer slide mechanism 105 and the lifting mechanism 107 are provided with dedicated racks 105r and 107r with which the pinion 108 is engaged. The pinion 108 can be transferred between the rack 105r of the outer slide mechanism 105 and the rack 107r of the lifting mechanism 107. Thus, since the pinion 108 and drive source of the outer slide mechanism 105 and the lifting mechanism 107 can be shared, the cost of the outer slide mechanism 105 and the lifting mechanism 107 can be reduced.

JP 2014-226964 A

  However, in the vehicle seat device 100 described above, the pinion 108 needs to be transferred between the rack 105r of the outer slide mechanism 105 and the rack 107r of the elevating mechanism 107. Therefore, the manufacturing accuracy of the rack 105r and the rack 107r, And it is necessary to increase the positioning accuracy. Furthermore, it is difficult to reduce the cost as expected because the mechanism is complicated.

  The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to reduce the manufacturing cost by enabling the seat body to be slid and lifted by a simple mechanism. That is.

  The above-described problems are solved by the inventions of the claims. The invention according to claim 1 is a seat body, a support table that supports the seat body in a passenger compartment, and a moving mechanism that moves the seat body between a storage position on the support table and a boarding / alighting position of a door opening of the vehicle. The moving mechanism includes a front link and a rear link that are arranged in the seat front-rear direction and are connected to the support table so as to be vertically rotatable, and the front link, A link that connects the free end of rotation with the rear link, and includes a support link that supports the seat body, and the front link and the rear link are lying in front of the seat, A virtual straight line connecting the free rotation end side of the front link and the rear link is inclined so that the front side is lowered, and the rotational center of the front link is located below the virtual straight line.

  The invention according to claim 2 is a seat body, a support table that supports the seat body in a passenger compartment, and a moving mechanism that moves the seat body between a storage position on the support table and a boarding / alighting position of a vehicle door opening. The moving mechanism includes a front link and a rear link that are arranged in the seat front-rear direction and are connected to the support table so as to be vertically rotatable, and the front link, A link that connects the free end of rotation with the rear link, and a support link that supports the seat body, and the connecting position between the front link and the support table is the rear link and the support table. The length dimension of the front link is set to a value larger than the length dimension of the rear link.

  According to the present invention, the connection position between the front link and the support table is lower than the connection position between the rear link and the support table, and the length dimension of the front link is smaller than the length dimension of the rear link. It is set to a large value. For this reason, when the front link and the rear link of the moving mechanism are rotated so as to lie down in the front of the seat from the standing state, the seat body supported by the support link descends while moving in the front of the seat. It inclines so that the front side of the main body 12 may become low. Then, the seat body is held at the boarding / alighting position in a forward inclined state. When the front link and the rear link that are lying down are turned upright, the seat body supported by the support link moves up in the rearward direction of the seat and returns to the storage position in a horizontal posture. . In other words, the seat body can be moved in the longitudinal direction of the seat and further moved up and down by a drive source that rotates the front side link or the rear side link. For this reason, unlike the prior art, there is no need to separately provide a slide mechanism for moving the seat body in the longitudinal direction of the seat and an elevating mechanism for raising and lowering the seat body. Further, since the seat body is moved in the longitudinal direction of the seat by the four-bar linkage mechanism and is further moved up and down, the mechanism can be simplified and the manufacturing cost can be reduced.

  According to a third aspect of the present invention, the support table is configured to be horizontally rotatable, and rotates the seat body in the retracted position between a seating position facing forward of the vehicle and a lateral position facing the direction of the door opening.

  According to the invention of claim 4, when the seat body is in the retracted position, the front side link stands upright with respect to the support table, and the rear side link stands upright with respect to the support table. And the support link is held horizontally. As described above, since the rear link is inclined in the seat rearward direction with respect to the support table, the rear link is rotated against the gravity of the seat body when the rear link is laid down in the seat forward direction. It is necessary to let Therefore, the seat body can be stably held at the storage position (horizontal position) by its own weight.

  According to the invention of claim 5, in the state where the seat main body is in the getting-on / off position, the support link, the front link lying down in the seat front direction, and the rear link are substantially straight in a side view.

  According to the invention of claim 6, the seat body includes a seat cushion and a seat back, and is configured to change an inclination angle of the seat back with respect to the seat cushion. When the link is rotated so as to fall from the standing state in the seat front direction, the seat back is rotated in a direction to tilt backward with respect to the seat cushion. For this reason, when the seat body is held in the boarding / alighting position in a forwardly inclined state, the seat back does not hinder the passenger from getting on / off.

  According to the present invention, the seat body can be slid and raised and lowered by a simple mechanism, so that the manufacturing cost can be reduced.

1 is a schematic perspective view of a vehicle seat device according to a first embodiment of the present invention in a state in which a seat body is in a seating position facing forward of the vehicle. It is a model side view in the state where a seat body is in a boarding / alighting position of a door opening in the above-mentioned vehicle seat device. It is a whole side view of the said vehicle seat apparatus. It is an operation | movement side view of the said vehicle seat apparatus. It is an operation | movement side view of the said vehicle seat apparatus. It is a disassembled perspective view of the 4-joint link mechanism of the said vehicle seat apparatus. It is a side view of the 4-joint link mechanism of the said vehicle seat apparatus. It is an operation | movement side view of the 4-joint link mechanism of the said vehicle seat apparatus. It is an operation | movement side view of the 4-joint link mechanism of the said vehicle seat apparatus. It is a disassembled perspective view of the drive device in the four-bar linkage mechanism of the vehicle seat device. It is a side view showing the storage stopper of the said vehicle seat apparatus. It is a side view of the conventional vehicle seat apparatus.

[Embodiment 1]
Hereinafter, based on FIGS. 1-11, the vehicle seat apparatus which concerns on Embodiment 1 of this invention is demonstrated. The vehicle seat device according to the present embodiment is a seat device used for a passenger seat of a passenger car C as shown in FIG. Here, the front, rear, left, and right and up and down shown in the figure correspond to the front, rear, left, right, and top and bottom of the passenger car C including the vehicle seat device 10. Further, the front and rear of the seat and the left and right of the seat in the figure correspond to the front and rear and the left and right of the seat body 12 of the vehicle seat device 10.

<About the outline | summary of the vehicle seat apparatus 10>
As shown in FIG. 1, FIG. 2, etc., the vehicle seat device 10 includes a seat body 12, and a seat moving device 200 that moves the seat body 12 between a seating position in the vehicle interior and a boarding / alighting position of the door opening D. It is composed of The seat body 12 includes a seat cushion 14 and a seat back 16, and a recliner 18 that adjusts an inclination angle (reclining angle) of the seat back 16 is provided at a connecting position between the seat cushion 14 and the seat back 16. Yes. As shown in FIGS. 3 to 5, the seat moving device 200 includes a front / rear slide mechanism 20 installed on the vehicle floor F, a rotation mechanism 30 installed on the front / rear slide base 21 of the front / rear slide mechanism 20, and the like. A four-joint link mechanism 40 installed on a rotary table 35 of the rotary mechanism 30. The seat body 12 is supported from below by the support link 45 of the four-bar linkage mechanism 40.

<Fore-and-aft slide mechanism 20>
The front / rear slide mechanism 20 is a mechanism that moves the seat body 12 in the vehicle front-rear direction in the vehicle interior. The front / rear slide mechanism 20 slides along a pair of left and right fixed-side rails 22 extending in the vehicle front-rear direction on the fixed base 23 of the vehicle floor F and a pair of left and right fixed-side rails 22 as shown in FIG. And left and right sliding bodies 22s. The left and right sliding bodies 22 s are fixed to the lower surface of the front and rear slide base 21. Further, between the fixed base 23 and the front / rear slide base 21, a drive unit (not shown) for sliding the front / rear slide base 21 back and forth with respect to the fixed base 23 is provided.

<About Rotating Mechanism 30>
The rotation mechanism 30 is a mechanism that horizontally rotates the seat body 12 between a seating position facing forward of the vehicle and a lateral position facing the door opening D side. As shown in FIG. 3 and the like, the rotation mechanism 30 includes an inner ring 31 fixed on the front / rear slide base 21, an outer ring 33 supported rotatably with respect to the inner ring 31, and a rotary table fixed on the outer ring 33. 35. A drive unit (not shown) for rotating the outer ring 33 relative to the inner ring 31 is provided on the front / rear slide base 21. That is, the rotation mechanism 30 is configured to horizontally rotate the seat body 12 in the storage position on the turntable 35 between a seating position facing the front of the vehicle and a lateral position facing the door opening D side. Thus, the rotary table 35 corresponds to the support table of the present invention.

<About the 4-section link mechanism 40>
The four-joint link mechanism 40 is a mechanism that moves the seat body 12 between the retracted position (the lateral position) and the door opening / closing position of the door opening D. Is provided. As shown in FIGS. 3 to 5, the four-joint link mechanism 40 is configured to lower the seat body 12 while moving the seat body 12 in the forward direction of the seat, and further to gradually tilt the seat body 12 forward. On the turntable 35, as shown in FIG. 6, there are provided chevron-shaped side wall portions 35w that are lower on the front side of the seat and higher on the rear side of the seat on both sides in the width direction (the left and right sides of the seat). A fixed link of the mechanism 40 is configured.

  And the one end part 44d of the front side link 44 is connected with the sheet | seat front end part 35f of the right-and-left side wall part 35w in the turntable 35 in the state which can be rotated up and down. In addition, one end portion 43d of the rear link 43 is connected to the top portion 35t at the rear position of the left and right side wall portions 35w so as to be rotatable up and down. That is, the connection position between the front side link 44 and the side wall part 35 w of the turntable 35 is lower than the connection position between the rear side link 43 and the side wall part 35 w of the turntable 35. Further, the length dimension of the front link 44 is set to be larger than the length dimension of the rear link 43, and the free rotation end of the front link 44 and the rear link 43 with both the links 43, 44 standing up. The side (the other end) has almost the same height.

  As shown in FIGS. 6 and 7, the other end portion 44 u (the rotation free end side) of the front link 44 is connected to the central portion 45 c of the support link 45 in a state in which it can be rotated up and down. The other end portion 43u (rotation free end side) of 43 is connected to the rear end portion 45b of the support link 45 so as to be vertically rotatable. Then, as shown in FIG. 7, the front link 44 stands up at a right angle with respect to the rotary table 35, the rear link 43 stands up backward with respect to the rotary table 35, and the support link 45 is Holds horizontally. As shown in FIG. 6, the rear end portions of the left and right support links 45 are connected by a rear beam portion 46, thereby forming a plane U-shaped frame. The seat body 12 is supported from below by the left and right support links 45 and the rear beam portion 46 formed in a U-shape.

<About the driving device 50 of the four-bar linkage mechanism 40>
On the rotary table 35, a driving device 50 is installed for simultaneously rotating the rear links 43 of the left and right four-bar linkage mechanisms 40 up and down. As shown in FIG. 10, the drive device 50 includes a linear drive shaft 51 disposed so as to cross the rotary table 35, and one end side and the other end side of the drive shaft 51 are respectively left and right. The rear link 43 is engaged with the engagement groove 43m. The drive shaft 51 is reinforced by a reinforcing bracket 52. The reinforcing bracket 52 includes a reinforcing plate 52b provided in parallel with the drive shaft 51, and a connecting plate 52c that connects the reinforcing plate 52b and the drive shaft 51 at a plurality of locations in the length direction.

  In addition, the drive device 50 includes a drive source that includes a disc portion 54 that is arranged so that the axis is horizontal, a motor 55 that rotates the disc portion 54 around the axis, and a gear mechanism 56. I have. A U-shaped notch 54c is formed at one location in the circumferential direction of the disc portion 54, and the central portion in the length direction of the drive shaft 51 is fitted into the notch 54c from the radial direction. As a result, when the motor 55 of the drive source of the drive device 50 rotates, the disc portion 54 rotates about the axis, and the horizontally held drive shaft 51 moves in an arc around the axis of the disc portion 54. To come. Here, the axial center of the disc part 54 and the one end part 43d (rotation center 43d) of the rear link 43 are held coaxially.

  As shown in FIG. 7, the engaging groove 43m of the rear link 43 with which the drive shaft 51 of the driving device 50 engages is formed in a U-shaped notch shape so that the drive shaft 51 is fitted from the radial direction. . The engagement groove 43m is formed in the vicinity of the rotation center 43d of the rear link 43 along a straight line passing through the rotation center 43d, and the side opposite to the rotation center 43d is opened. Here, the width dimension of the rear link 43 is set to about twice the width dimension of the front link 44 in consideration of the depth dimension of the engagement groove 43m.

  Then, when the disc portion 54 of the drive device 50 rotates counterclockwise from the state shown in FIG. 7, the drive shaft 51 moves in an arc around the axis of the disc portion 54 in the left rotation direction and rotates the rear link 43. It is rotated left about the moving center 43d. As a result, as shown in FIG. 8, the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 gradually fall forward, and the support link 45 and the seat body 12 descend while moving in the seat front direction. , More gradually lean forward. Then, as shown in FIG. 9, when the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 have fallen to a position that is substantially in line with the support link 45, the driving device 50 stops and the four-bar link The left rotation of the mechanism 40 is stopped.

  Further, when the disc portion 54 of the drive device 50 rotates to the right from the state shown in FIG. 9, the drive shaft 51 moves in an arc around the axis of the disc portion 54 in the right rotation direction to rotate the rear link 43. It is turned right around the moving center 43d. As a result, as shown in FIG. 8, the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 are gradually raised, and the support link 45 and the seat body 12 are raised while moving in the seat rearward direction. Further, the seat body 12 gradually returns from the forward inclined state to the horizontal state. Then, as shown in FIG. 7, with the seat body 12 returned to the horizontal lateral position, the receiving portion B of the reinforcing bracket 52 of the drive device 50 is the rear wall portion of the rotary table 35 as shown in FIG. 11. Abutting on the stopper S of 35 s, the right rotation of the four-bar linkage mechanism 40 is stopped. Further, the seat lock device (not shown) operates in a state where the seat body 12 is returned to the horizontal lateral position (storage position), and the seat body 12 is locked to the rotary table 35.

<Operation of Vehicle Seat Device 10>
Next, the operation of the vehicle seat device 10 will be described. First, the case where the seat main body 12 in the seating position (see FIG. 1) in the passenger compartment is moved to the getting-on / off position of the door opening D (see FIG. 2) will be described. Here, in a state where the seat body 12 is in the passenger compartment, the seat body 12 is in the storage position of the rotary table 35 and the seat lock device is held in the locked state. Further, as shown in FIG. 11, the receiving portion B of the reinforcing bracket 52 of the driving device 50 is in contact with the stopper S of the rear wall portion 35 s of the rotary table 35. As a result, as shown in FIG. 7, the four-link mechanism 40 is in a state in which the front link 44 stands at a right angle with respect to the rotary table 35 and the rear link 43 is inclined rearward with respect to the rotary table 35. The support link 45 and the seat body 12 are held horizontally.

  In this state, as shown in FIG. 1, when the door (not shown) of the passenger car C is opened and the getting-off switch (not shown) is operated, first, the front / rear slide mechanism 20 is operated to turn the rotary table 35 and the seat. The main body 12 slides in the vehicle front-rear direction to the rotational position. Next, the rotation mechanism 30 operates to rotate the turntable 35 horizontally, and the seat body 12 rotates from the seating position facing the front of the vehicle to the lateral position facing the door opening D (see FIG. 3). In this state, the locked state of the seat lock device is released.

  Next, the drive device 50 of the four-bar linkage mechanism 40 is driven, and the drive shaft 51 moves in a circular arc in the left rotation direction to rotate the rear link 43 to the left around the rotation center 43d. As a result, as shown in FIGS. 4 and 5, the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 gradually fall forward, while the support link 45 and the seat body 12 move forward of the seat. It descends and gradually leans forward. As the seat body 12 tilts forward, the recliner 18 operates and the seat back 16 tilts backward with respect to the seat cushion 14. Thus, as shown in FIG. 5, when the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 fall down to a position that is substantially in line with the support link 45, the drive device 50 stops and the seat body 12 is held at the getting on / off position.

  In order to move the seat body 12 at the boarding / alighting position of the door opening D to the seating position in the vehicle interior, a boarding switch (not shown) is operated. As a result, the drive shaft 51 of the driving device 50 moves in a circular arc in the right rotation direction from the state of FIG. 5 to rotate the rear link 43 to the right around the rotation center 43d. As a result, as shown in FIG. 4 and the like, the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 are gradually raised, and the support link 45 and the seat body 12 are raised while moving backward, The seat body 12 is gradually returned to the horizontal state from the forward tilt state. As the seat body 12 is returned to the horizontal position, the recliner 18 operates and the seat back 16 gradually rises with respect to the seat cushion 14.

  As shown in FIG. 3, the receiving portion B of the reinforcing bracket 52 of the driving device 50 is the rear wall portion of the rotary table 35, as shown in FIG. 11, with the seat body 12 returned to the horizontal lateral position. Abutting on the stopper S of 35 s, the right rotation of the four-bar linkage mechanism 40 is stopped. In addition, the seat body 12 is locked to the rotary table 35 by operating a seat lock device (not shown). Next, the seat body 12 is returned to the seating position by operating the rotation mechanism 30 and the front / rear slide mechanism 20. Thus, the four-joint link mechanism 40 corresponds to the moving mechanism of the present invention.

<Advantages of the vehicle seat device 10 according to the present embodiment>
According to the vehicle seat device 10 according to the present embodiment, the connecting position between the front link 44 and the rotary table 35 is lower than the connecting position between the rear link 43 and the rotary table 35, and the length dimension of the front link 44 is. Is set to a value larger than the length dimension of the rear link 43. For this reason, when the front link 44 and the rear link 43 of the four-bar linkage mechanism 40 (moving mechanism) rotate so as to lie down from the standing state in the seat front direction, the seat body 12 supported by the support link 45 is While moving in the forward direction of the seat, the seat descends and tilts forward so that the front side of the seat body 12 is lowered. Then, the seat body 12 is held at the boarding / alighting position in a forwardly inclined state. Further, when the front link 44 and the rear link 43 that are lying down are rotated so as to stand up, the seat body 12 moves upward while moving backward in the seat, and is returned to the horizontal position in a horizontal posture. That is, the seat main body 12 can be moved in the front-rear direction of the seat and further moved up and down by the driving device 50 that rotates the front link 44 or the rear link 43. This eliminates the need for separately providing a slide mechanism for moving the seat body 12 in the longitudinal direction of the seat and an elevating mechanism for raising and lowering the seat body 12 as in the conventional art. Further, since the seat main body 12 is moved in the front-rear direction of the seat by the four-bar linkage mechanism 40 and further moved up and down, the mechanism can be simplified and the manufacturing cost can be reduced.

  In the state where the seat body 12 is in the lateral position, the front link 44 stands upright with respect to the rotary table 35, and the rear link 43 stands up with the rotary table 35 tilted backward with respect to the seat. The link 45 is held horizontally. Thus, since the rear link 43 is inclined in the seat rearward direction with respect to the rotary table 35, the rear link 43 is resisted against the gravity of the seat body 12 when the rear link 43 is laid down in the seat front direction. It is necessary to rotate the link 43. Therefore, the sheet body 12 can be stably held in the lateral position (horizontal position) by its own weight. Further, when the seat body 12 is held at the boarding / alighting position in a forwardly inclined state, the seat back 16 is tilted rearward with respect to the seat cushion 14, so that the seat back 16 does not hinder passengers from getting on / off. Further, since the rear links 43 on both sides in the width direction are rotated by the drive shaft 51 of the drive device 50, the rear links 43 on both sides in the width direction can be rotated with a single drive source in a balanced manner. .

<Example of change>
In addition, this invention is not limited to the said embodiment, The change in the range which does not deviate from the summary of this invention is possible. For example, in the present embodiment, the configuration in which the rear links 43 on both sides in the width direction are rotated by the drive shaft as the drive device 50 is exemplified. However, for example, the rear links 43 on both sides in the width direction are engaged by the driven gear and the pinion. It is also possible to rotate them individually. Moreover, although the example which rotates the rear side link 43 with the drive device 50 was shown in this embodiment, the structure which rotates the front side link 44 with the drive device 50 is also possible.

DESCRIPTION OF SYMBOLS 10 ... Vehicle seat apparatus 12 ... Seat main body 14 ... Seat cushion 16 ... Seat back 18 ... Recliner 35 ... Rotary table (support table)
40 ... Four-bar linkage mechanism (movement mechanism)
43 ... rear side link 43m ... engaging groove 44 ... front side link 45 ... support link 50 ... drive device 51 ... drive shaft 54 ... disc part 54c ... notch 55 ... ..Motor (drive source)
56 ... Gear mechanism (drive source)
D ... Door opening

Claims (6)

A vehicle seat apparatus comprising: a seat body; a support table that supports the seat body in a vehicle interior; and a moving mechanism that moves the seat body between a storage position on the support table and a boarding / alighting position of a vehicle door opening. Because
The moving mechanism includes a front link and a rear link that are arranged in the seat front-rear direction and are connected to the support table so as to be vertically rotatable, and a rotation free end side of the front link and the rear link. A link to connect, and a support link for supporting the seat body,
In a state in which the front side link and the rear side link lie down in front of the seat, a virtual straight line connecting the rotation free end sides of the front side link and the rear side link is inclined so that the front side is lowered, and the virtual straight line A vehicle seat device in which the center of rotation of the front link is located on the lower side. A vehicle seat apparatus comprising: a seat body; a support table that supports the seat body in a vehicle interior; and a moving mechanism that moves the seat body between a storage position on the support table and a boarding / alighting position of a vehicle door opening. Because
The moving mechanism includes a front link and a rear link that are arranged in the seat front-rear direction and are connected to the support table so as to be vertically rotatable, and a rotation free end side of the front link and the rear link. A link to connect, and a support link for supporting the seat body,
The connection position between the front link and the support table is lower than the connection position between the rear link and the support table, and the length dimension of the front link is larger than the length dimension of the rear link. Vehicle seat device set to A vehicle seat device according to claim 1 or 2, wherein
The support table is configured to be horizontally rotatable, and rotates the seat body in the retracted position between a front-facing seating position and a lateral position facing the door opening. The vehicle seat device according to any one of claims 1 to 3,
In the state where the seat body is in the retracted position, the front side link stands upright with respect to the support table, and the rear side link stands up with the seat inclined in the seat rear direction with respect to the support table, A vehicle seat device in which a support link is held horizontally. The vehicle seat device according to any one of claims 1 to 4,
In the state where the seat body is in the boarding / alighting position, the vehicle seat device in which the support link and the front link and the rear link lying in the front direction of the seat are substantially straight in a side view. The vehicle seat device according to any one of claims 1 to 5,
The seat body includes a seat cushion and a seat back, and is configured to change an inclination angle of the seat back with respect to the seat cushion.
When the front link and the rear link of the moving mechanism are rotated so as to fall down from the standing state in the front of the seat, the vehicle seat rotates in a direction in which the seat back is tilted backward with respect to the seat cushion. apparatus.

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