JP6912792B2 - Vehicle seat device - Google Patents

Description

The present invention relates to a vehicle seat device having a function of rotating a seat from the frontward direction of the vehicle to the lateral direction of the vehicle outside direction and from the sideways direction to the frontward direction.

Patent Document 1 describes a vehicle seat device in which the seat body 11 moves to the swing base 7 between a retracted position and an advanced position via a four-bar link mechanism 8. In between, a seat lock mechanism 20 including an engaging portion 21 formed on the swing base 7 and a lock pin 22 provided on the seat holder 9 is provided. When the seat body 11 moves from the retracted position, the seat lock mechanism 20 locks if the movement locus of the lock pin 22 with respect to the swing base 7 matches the movement locus of the lock pin 22 with respect to the swing base 7 when moving to the advance position. The pin 22 allows the seat body 11 to move without engaging with the engaging portion 21, but if they are different, the lock pin 22 engages with the engaging portion 21 to restrict the movement of the seat body 11. The vehicle seat device is disclosed.

In Patent Document 2, the rotating seat 1 for a vehicle is composed of a swivel lower 12, a swivel upper 14, a seat legglore 15, a seat leg upper 17, and a seat body 18, and the swivel upper 14 is in a forward state by a rotating mechanism. And rotate between the sideways states facing the door opening side. The swivel upper 14 is provided with a tilt mechanism 35 that inclines the seat leg groover 15, and the seat cushion 36 is inclined forward as the seat body 18 rotates. The seat legglier 15 is provided with a slide mechanism 41 for sliding the seat leg upper 17 toward the outside of the vehicle interior, and a rotating seat 1 for a vehicle that tilts the seat body 18 downward when the slide toward the outside of the vehicle interior is completed is disclosed.

In Patent Document 3, the seat rotation shaft 91 when the seat surface is tilted is set obliquely with respect to the seat center line 101 extending in the front-rear direction of the seat surface 92, and the seat surface is lowered so that the front portion 111 is lowered. A vehicle seat is disclosed in which the front portion 111 of the seat seat surface 92 and the left front portion 112 located on the entrance / exit 12 side are lowered by tilting the 92.

Japanese Unexamined Patent Publication No. 2003-159970 Japanese Unexamined Patent Publication No. 2004-26014 Japanese Unexamined Patent Publication No. 2010-221838

The vehicle seat device of Patent Document 1 is intended to simplify the structure of the seat lock mechanism provided for restricting the movement of the seat body in the vehicle seat device.

The vehicle rotating seat 1 of Patent Document 2 provides a vehicle rotating seat that can be easily released from the seat.

The vehicle seat of Patent Document 3 can reduce the separation distance from the left front portion 112 on which the seated person's foot 131 extends to the road surface 132, and can improve the footing property. Further, the bulging portion 151 on the side of the seat seat surface 92 can be lowered, the seat seat surface angle 152 can be reduced, and the footing ability to the seated person's entrance / exit 12 side can be improved. While simplifying the mechanism, it is possible to improve the ease of stepping out.

The present invention is a rotary tilt seat device for a vehicle having a function of rotating the seat from the frontward direction of the vehicle to the lateral side of the vehicle and from the sideways direction to the forward direction, and the height of the footrest is as low as possible. If it is set to, the movement of putting the foot and the posture after putting it will be easier and the burden on the user while riding can be reduced, but if it is set too low, interference with the door opening will occur during rotation. , It cannot be set lower than this door opening.

For this reason, the setting is set as low as possible within a range that does not interfere with the vehicle opening, but the user is forced to take a cramped posture.

The present invention provides a vehicle seat device that can rotate from forward to sideways and from sideways to forward without interfering with the door opening even if the footrest is set at a position lower than the door opening. ..

The seat rotation support means for rotating the seat from the front-rear direction of the vehicle to the sideways and sideways to the front of one side of the vehicle, the rotation locking means for locking the seat at a predetermined rotation angle position, and the posture of the seat. It is provided with a posture tilt means for tilting to a standard tilt posture, a forward tilt posture and a forward downward tilt posture, and a posture tilt lock means for locking the posture tilt means to each of the postures. When rotating the vehicle sideways from the position to the outside of one side , the seat posture should be raised forward and tilted at the midway position of the lateral rotation rotated by a predetermined angle from the rotation storage position to just before interfering with the door opening. By tilting the vehicle by a predetermined angle, the position of the footrest is moved to a higher position than the door opening, and in that state, the vehicle is rotated until it is turned sideways. When the seat is held in a position where passengers can easily move up and down by tilting it to a forward-down tilt position by a predetermined angle and the seat is rotated from the sideways direction to the forward direction of the vehicle, the tilt operation is performed to the front-up position and the foot from the door opening. A vehicle seat device that moves the pedestal to a higher position, rotates to the lateral rotation intermediate position, then tilts to the standard tilt posture, and then rotates to the rotation storage position. ,
The seat rotation bearing means is provided from a base member fixed to the floor of the vehicle and a rotary bearing connecting the rotary members .
The rotating member has a rotation stop function fixed to the base member and locked to a rotation storage position, a lateral rotation intermediate position, and a lateral position by a rotation locking means provided between the rotating member and the rotating member. A posture tilt means is provided on the seat mounting member, the seat mounting member tilts with respect to the rotating member, and a standard tilt posture, a forward tilt posture, and a forward downward tilt are provided by the posture tilt lock means attached to the posture tilt means. It has a function to be locked to the posture,
The rotating member is provided with an arc-shaped rotation restricting elongated hole having a radius centered on the rotation center of the rotating member, and one inner end surface thereof is formed on a storage position stop surface and the other inner end surface is formed on a lateral position stop surface. , A stop pin fitted into the rotation control elongated hole of the rotating member is fixedly arranged on the upper surface of the inner bearing of the rotating bearing, and the rotating member is rotated at a required rotation angle with respect to the base member integrated with the inner bearing. Regulated,
In the rotary lock means, the rotary lock receiving plate is located on the outer side around the axis of the rotary bearing and is mounted on the base member and deployed, and the inner operation restricting plate is deployed on the outer side thereof. Is a storage position lock hole for holding the seat in the rotation storage position, a lateral rotation intermediate position lock hole for holding the seat in the lateral rotation intermediate position slightly rotated in the lateral direction, and a lateral position lock for holding the seat in the lateral rotation position. A hole and a rotation lock member whose base end portion is rotatably supported by a rotation lock shaft provided on the rotation member are provided, and the hook portion of the rotation lock member is on the base member. A traction spring is provided between one side of the tip end portion of the connecting portion formed from the base end portion at a required angle with the hook portion and the rotating member corresponding to the rotation lock receiving plate, and the hook portion of the rotation lock member. The tip engaging portion is provided so as to fit into the corresponding storage position lock hole of the rotation lock receiving plate, the lateral rotation intermediate position lock hole, and the lateral rotation position lock hole to lock the rotating member at that position.
The posture tilt means is provided from the rotating member on which the tilt bearing mechanism is provided on the upper surface and the seat mounting member to which the tilt guide plate mechanism that slides and tilts back and forth is attached to the tilt bearing mechanism. It is in the device.

A symmetrical left tilt bracket and right tilt bracket are provided on the upper surface of the rotating member, and the left front tilt bracket has a left front half roller shaft and a left rear half roller shaft in which a left front half guide roller and a left second half guide roller are arranged back and forth. The right front tilt bracket is provided by supporting the right front half roller shaft and the right rear half guide roller in the front-rear direction by the right front half roller shaft and the right rear half roller shaft, respectively. One left inner guide surface is provided by the side surface, and the other left outer guide surface is provided by a left holding plate screwed to the tips of the left front roller shaft and the left rear roller shaft, and is provided by the outer surface of the right tilt bracket. A vehicle in which one right inner guide surface is provided by a right holding plate with the other right outer guide surface screwed to the tips of the right front half roller shaft and the right rear half roller shaft, and a tilt bearing mechanism is provided. It may be used as a seat device.

A left tilt guide plate is provided in front of and behind the left side of the seat mounting member, and a right tilt guide plate is provided in the right side of the seat mounting member. A left guide portion formed by penetrating the latter half guide hole to the left and right is formed, and the right tilt guide plate also has a right guide portion similar to the left tilt guide plate, and the left front half guide hole of the left tilt guide plate is formed. The left front half guide roller and the left second half guide roller provided near the left end of the upper surface of the rotating member are fitted into the left second half guide hole, and the right front half guide hole and the right second half guide hole of the right tilt guide plate are fitted with the right front half guide hole. It may be a vehicle seat device including a tilt guide plate mechanism in which a right front half guide roller and a right rear half guide roller arranged near the right end of the upper surface of the rotating member are fitted and supported so as to be tiltable back and forth.

The tilt guide plate mechanism in the left half the guide hole and the left late guide hole及beauty right half guide hole and the right second half guide hole is centered on the same axis center, the outer circle arc surface of the same radius of the inner diameter arcuate surface of the same radius It can also be used as a vehicle seat device that is formed in preparation for each, and is provided so that the left front half guide roller, the left second half guide roller, the right front half guide roller, and the right second half guide roller are each fitted and tilted about the axis. It's a good one.

In the posture tilt lock means, a tilt lock plate is separately supported in the front-rear direction corresponding to a tilt lock receiving plate provided on the upper surface of the rotating member, and the tilt lock plate is tilted to a tilt lock shaft integrally provided on the tilt lock plate. A tilt lock receiver is provided so that the lock member is rotatably supported by the shaft and is always pulled in the lock direction by the urging of the lock spring, and the lock pin provided on the tilt lock member is integrally provided on the rotating member. It is provided so as to be pressed against the plate, and in the standard tilt posture, the seat mounting member fits into the standard posture lock groove provided in the tilt lock receiving plate and is locked in that posture, and the seat mounting member is locked in the forward tilt posture. It is fitted into the front-up posture lock groove provided on the tilt lock receiving plate and locked in that posture. On the contrary, in the front-down tilt posture, it is fitted into the front-down posture lock groove provided on the rotation lock receiving plate. It may be a vehicle seat device provided so as to be locked in that posture.

An inner operation restricting plate and an outer operation restricting plate constituting the rotation restricting means are attached to the base member and deployed on the outer side of the rotation lock receiving plate, and the inner operation restricting plate is mounted on the rotating member on the rotation shaft of the rotating bearing. It is deployed corresponding to the rotation locus of the inner operation regulation pin and the outer operation regulation pin that are separated from each other with the required radius centered on the inner diameter side and the outer diameter side at the required interval and are held at the fixed positions of the rotating member. the inner working inhibition plate as a portion corresponding to the inner working inhibition pin, provided with a free surface-contacting portion you connected with its lower edge on the upper surface, provided on the rear side middle collision portion rear edge, said lateral direction rotating middle It collides with the lowered inner operation regulation pin corresponding to the position lock hole to stop the lateral rotation, and the opposite front end edge is provided at the front collision part, collides with the lowered inner operation regulation pin and returns to the rotation storage position. The inner operation restricting plate was extended to the rear on the outer diameter side from the rear halfway collision portion of the rear end edge of the portion corresponding to the inner actuation restricting pin as a portion corresponding to the outer actuating regulation pin. An outer operation regulation plate is deployed, and its front edge is provided in a standard tilt return collision portion, and the standard tilt return collision portion corresponds to a position lock hole in the middle of lateral rotation when the lowered outer operation regulation pin collides with the collision portion. It may be a vehicle seat device provided so as to stop the rotation of the seat mounting member and promote the conversion of the forward rising tilt posture to the standard tilt posture.

In the vehicle seat device of the present invention, a footrest is set at a position lower than the door opening to ensure a good standard riding posture, and when rotating, the seat is operated in a forward tilting posture and in that state. The seat can rotate from front to side and from side to front without interfering with the vehicle.

In the vehicle seat device of the present invention, when the seat is in the vehicle sideways direction, the seat operates from the forward ascending tilt posture to the standard tilt posture and the forward descending tilt posture, and both tilt postures can be locked, so that it is easy to get on and off the seat. You can do it.

In the vehicle seat device of the present invention, since the seat cannot be stored in the vehicle interior storage position unless it is operated in the standard tilt posture, the conversion to the standard tilt posture is forced and a safe traveling riding posture can be maintained.

In the vehicle seat device of the present invention, when the seat is rotated from the front to the side of the vehicle, the retracted position lock is released at the same time as the tilt lock is released by operating the release lever, so that the seat can be rotated in the sideways direction. In addition, the standard tilt posture can be converted to a forward tilt posture. When the release lever is released when the standard tilt posture is maintained and slightly rotated, the rotation locking means is put into a standby state, and the tilt locking means locks and maintains the standard tilt posture.

The rotation locking means of the vehicle seat device of the present invention operates according to the position of the seat, and the rotation regulating means operates according to the posture of the seat. Therefore, unless the posture is changed to the next posture, the regulation cannot continue to operate and rotate. The conversion to the next posture is forced. Therefore, the malfunction is improved.

Rotation lock means of the vehicle seat device of the present invention, the seat is locked to the vehicle sideways position, tilt lock means is locked to the state of the tilt and orientation lowers the standard tilt attitude or before the sheet, rotation restricting means is unrelated to the release lever The forward rotation is stopped.

In the vehicle seat device of the present invention, when the seat is rotated from the vehicle sideways to the forward direction, the release lever is operated to release the lateral position lock of the rotation locking means and the posture locking means of the standard tilt posture or the forward downward tilt posture. , The seat is tilted to the forward tilt posture, and in the forward tilt posture, the collision with the front collision part of the inner operation regulation plate of the rotation regulating means is released and the rotation becomes possible, and the release lever is operated to rotate forward. By doing so, the tilt lock is applied, and the seat can be rotated forward in the vehicle while the seat is securely locked in the forward upward posture. It can rotate forward as a lock on its posture.

In the vehicle seat device of the present invention, when the seat is rotated forward in the vehicle in the forward tilted posture, the release lever is released and the rotation lock means is rotated in the rotation lock standby state. The lock is activated, and the outer operation restricting pin of the rotation regulating means collides with the standard tilt return collision portion to stop the rotation. Therefore, the release lever is operated to unlock the rotation lock means in the middle of rotation, and the posture lock means in the forward upward tilt posture is released, and the seat is changed from the forward upward tilt posture to the standard tilt posture while operating the release lever. The tilt operation can be performed to cancel the collision between the standard tilt return collision portion of the rotation regulating means and the outer operation regulating pin.

The inner operation regulation pin and the outer operation regulation pin constituting the rotation regulation means in the vehicle seat device of the present invention are separately arranged inside and outside in the same radiation extending from the rotation center of the rotating member, and are arranged by the tilt posture of the seat mounting member. Since the collision is stopped by corresponding to the collision portion provided on the inner operation regulation plate and the outer operation regulation plate which are raised and lowered respectively, it is possible to correspond only to the rotation in one direction and the tilt posture is changed. By doing so, the regulations can be lifted respectively.

It is an exploded perspective view which shows disassembled into the base member, the rotating member, and the seat mounting member which constitute the Example of the vehicle seat device of this invention. It is a top view of the base member which comprises the Example of the vehicle seat device of this invention. It is a top view of the rotating member which comprises the Example of the vehicle seat device of this invention. It is a top view of the seat attachment member which comprises the Example of the vehicle seat device of this invention. Similarly, it is a side view of the seat mounting member. Similarly, it is a partial plan view which shows the engagement relationship between the rotation lock receiving plate of a base member and the rotation lock member of a rotation member. It is a partial cross-sectional side view which shows the posture tilt means which comprises a rotating member and a seat mounting member. It is a partial cross-sectional view along the line AA of FIG. It is an operation explanatory side view which shows the operation which made the seat mounting member a forward tilt posture and a forward downward tilt posture with respect to a rotating member. It is operation | operation explanatory side view of the posture locking means which shows the state which the seat mounting member is locked in the standard tilt posture with respect to a rotating member. Similarly, it is an operation explanatory side view of the posture locking means which shows the state which the seat mounting member is locked in the forward ascending tilt posture and the forward descending tilt posture with respect to a rotating member, respectively. It is an operation explanatory side view which shows the operation of the inner operation regulation pin in the state which locked the seat attachment member with respect to a rotating member in a standard tilt posture. It is an operation explanatory side view which shows the operation of the inner operation regulation pin in the state which the seat attachment member is locked in the forward upward tilt posture with respect to a rotating member. It is an operation explanatory side view which shows the operation of the inner operation regulation pin in the state which the seat attachment member is locked in the forward downward tilt posture with respect to a rotating member. It is an operation explanatory side view which shows the operation of the outer operation regulation pin in the state which locked the seat attachment member with respect to a rotating member in a standard tilt posture. It is an operation explanatory side view which shows the operation of the outer operation regulation pin in the state which the seat attachment member is locked in the forward upward tilt posture with respect to a rotating member. It is an operation explanatory side view which shows the operation of the outer operation regulation pin in the state which the seat attachment member is locked in the forward downward tilt posture with respect to a rotating member. It is a model drawing which shows the mutual positional relationship when the tilt center axis is near the position of the center of gravity of the seat of this invention. It is a model drawing which shows the mutual positional relationship when there is a tilt center near the rear end portion of a conventional seat, and the center of gravity of the seat in the center of the seat.

A seat rotation supporting means 8 that rotates the seat from the frontward direction of the vehicle to the sideways direction of one of the outside directions of the vehicle and a rotation locking means 9 that locks the seat to a predetermined rotation angle position, and a seat . A posture tilting means 10 for tilting the posture to a standard tilt posture, a forward rising tilt posture, and a forward falling tilt posture, and a posture tilt locking means 11 for locking the posture seat to each of the postures are provided, and the seat is facing forward in the front-rear direction of the vehicle. When rotating laterally from the rotation storage position to one side of the vehicle, the seat posture rises forward and tilts at the lateral rotation intermediate position rotated by a predetermined angle from the rotation storage position to just before interfering with the door opening. By tilting the vehicle by a predetermined angle so as to be When the rotation is completed, the tilt posture is tilted to the standard tilt posture or the forward downward tilt posture by a predetermined angle to hold the seat in a position where passengers can easily move up and down. The tilt operation is performed to the posture, the footrest is moved so that the position of the footrest is higher than the door opening, the position is rotated to the intermediate position of the lateral rotation, the tilt operation is performed to the standard tilt posture, and then the rotation is stored. A vehicle seat device that is rotated to a position and has the following configurations (A), (B), (C), (D), and (E).
(A) The seat rotation bearing means 8 is provided from a rotary bearing 7 that connects a base member 2 fixed to the floor of a vehicle and a rotary member 3.
(B) The rotation stop function is fixed to the base member 2 and locked to a rotation storage position, a lateral rotation intermediate position, and a lateral position by a rotation locking means 9 provided between the rotating member 3 and the rotating member 3. The posture tilting means 10 is provided on the rotating member 3 and the seat mounting member 4, the seat mounting member 4 tilts with respect to the rotating member 3, and the posture tilt locking means 11 attached to the posture tilting means 10 is provided. It has a function to be locked to the standard tilt posture, forward tilt posture, and forward downward tilt posture.
(C) The rotating member 3 is provided with an arc-shaped rotation restricting elongated hole 62 having a radius centered on the rotation center of the rotating member 3, one of which has an inner end surface on a storage position stop surface 63a and the other on an inner end surface. A stop pin 64 formed on the lateral position stop surface 63b and fitted into the rotation regulation elongated hole 62 of the rotation member 3 is fixedly arranged on the upper surface of the inner bearing 7a of the rotation bearing 7 and is integrated with the inner bearing 7a. The rotation member 3 is restricted to the rotation of the required rotation angle with respect to the base member 2.
(D) In the rotary lock means 9, the rotary lock receiving plate 12 is located on the outer side around the axis of the rotary bearing 7, and is attached to the base member 2 and deployed, and the inner operation regulation plate 13 is provided on the outer side thereof. The rotation lock receiving plate 12 is provided with a storage position lock hole 12a in which the rotation member 3 holds the seat in the rotation storage position, and a lateral rotation intermediate position lock in which the rotation member 3 holds the seat in the lateral rotation intermediate position slightly rotated in the lateral direction. The hole 12b, the lateral position lock hole 12c held in the lateral position, and the rotary lock member 16 whose base end portion 16a is rotatably and horizontally supported by the rotary lock shaft 15 provided on the rotary member 3. The rotation lock member 16 is deployed, and the hook portion 16b corresponds to the rotation lock receiving plate 12 on the base member 2, and the tip of the connecting portion 16c formed from the base end portion 16a with the hook portion 16b at a required angle. A traction spring 17 is provided between one side of the portion 16c1 and the rotary member 3, and a storage position lock hole 12a of the rotary lock receiving plate 12 to which the tip engaging portion 16b1 of the hook portion 16b of the rotary lock member 16 corresponds. The rotating member 3 is provided so as to be fitted into the lateral rotation intermediate position lock hole 12b and the lateral rotation position lock hole 12c to lock the rotating member 3 at that position.
(E) The posture tilting means (10) includes a rotating member (3) on which a tilt bearing mechanism (10a) is arranged on the upper surface, and a tilt guide plate mechanism (10a) that slides and tilts back and forth to the tilt bearing mechanism (10a). It is provided from the seat mounting member (4) to which the 10b) is mounted .

The vehicle seat device of the present invention will be described by an embodiment shown in the drawings. As shown in FIGS. 1 to 18 , the vehicle seat device 1 of the embodiment can be roughly divided into a base member 2, a rotating member 3, and a seat. is composed of three layers of the mounting member 4, the base member 2 is secured by a screw 6 to the vehicle floor 5 of the vehicle, it does not move relative to the vehicle floor 5. The rotating member 3 is supported by a base member 2 via a rotating bearing 7, and includes a seat rotation bearing means 8 that rotates forward and sideways with respect to the vehicle floor 5. Further, the rotation locking means 9 for locking the rotation at the rotation storage position, the lateral rotation intermediate position, and the lateral rotation position is provided.

The seat mounting member 4 is supported by the seat mounting member 4 and the posture tilting means 10 provided on the rotating member 3, and tilts with respect to the rotating member 3. Further, the attitude tilt locking means 11 has a function of being locked to a standard tilt posture, a forward rising tilt posture, and a forward falling tilt posture.

Hereinafter, the base member 2, the rotating member 3, and the seat mounting member 4 will be described in detail.

A rotary lock receiving plate 12 is arranged on the upper surface of the base member 2 on the outside of the rotary bearing 7. Then, the inner operation restricting plate 13a of the rotation regulating means 13 is further arranged on the outer side.

The rotation lock receiving plate 12 has a storage position lock hole 12a in which the rotating member 3 holds the seat in a forward facing fixed position, and a lateral rotation intermediate position slightly rotated in the lateral direction (a position rotated by an angle of 10 degrees in the embodiment). The lateral rotation intermediate position lock hole 12b for performing the conversion operation to the forward upward tilt posture and the lateral position lock hole 12c for holding in the lateral position are provided through openings on the outer peripheral surface and the inner peripheral surface. ..

The inner operation restricting plate 13a is separated from the rotating member 3 with a required radius centered on the rotation axis of the rotary bearing 7 on the inner diameter side and the outer diameter side at a required interval, and is held at a fixed position of the rotating member 3. It is arranged corresponding to the rotation locus of the inner operation regulation pin 14a and the outer operation regulation pin 14b.

The inner working inhibition plate 13a, as a portion corresponding to the inner actuating restricting pin 14a, provided with a free surface-contacting portion 13a1 you connected with its lower edge on the upper surface, provided in the middle rear side trailing edge collision portion 13a2, the The lateral rotation is stopped by colliding with the inner operation restricting pin 14a that has descended corresponding to the position lock hole 12b in the middle of the lateral rotation. The opposite front end edge is provided in the front collision portion 13a3 and collides with the lowered inner operation restricting pin 14a to stop the return rotation to the forward fixed position.

The inner operation restricting plate 13a extends rearward from the rear side intermediate collision portion 13a2 of the rear end edge of the portion corresponding to the inner operation regulation pin 14a as a portion corresponding to the outer operation regulation pin 14b. The outer operation restricting plate 13b is provided, and the front end edge thereof is provided in the standard tilt return collision portion 13b1. The standard tilt return collision portion 13b1 always stops the rotation of the seat mounting member 4 in correspondence with the lateral rotation intermediate position lock hole 12b due to the collision of the lowered outer operation restricting pin 14b, and the forward ascending tilt posture is changed to the standard tilt posture. Is provided to encourage conversion.

In the inner operation regulation plate 13a, the outer operation regulation plate 13b corresponding to the outer operation regulation pin 14b may be provided separately from the portion corresponding to the inner operation regulation pin 14a.

In FIG. 2 showing the base member 2, the alternate long and short dash line diagram shows the state in which the rotating member 3 is stationary in the forward facing state, and the three-dot chain diagram shows the state in which the rotating member 3 is stationary in the lateral orientation state.

Since the seat of the rotating member 3 is arranged on the left side of the vehicle (as viewed from the vehicle itself), the outer bearing 7b of the rotating bearing 7 is attached to the left side of the lower surface, and the inner bearing 7a is combined with the outer bearing 7b. Is attached to the base member 2.

The rotating member 3 is provided with an arc-shaped rotation restricting elongated hole 62 having a radius of rotation center of the rotating member 3, one inner end surface of which is a storage position stop surface 63a, and the other inner end surface of which is a lateral position stop surface 63b. Is formed in.

A stop pin 64 fitted into the rotation restricting elongated hole 62 of the rotating member 3 is fixedly arranged on the upper surface of the inner bearing 7a of the rotating bearing 7.

A rotation lock member 16 whose base end portion 16a is rotatably supported in a horizontal direction is provided on a rotation lock shaft 15 provided on the front portion on the lower surface side of the rotation member 3. In the rotation lock member 16, the hook portion 16b corresponds to the rotation lock receiving plate 12 on the base member 2, and the tip portion 16c1 of the connecting portion 16c formed from the base end portion 16a with the hook portion 16b at a required angle. A traction spring 17 is provided between one side and the rotating member 3, and the storage position lock hole 12a corresponding to the tip engaging portion 16b1 of the hook portion 16b of the rotation lock member 16 and the lateral rotation intermediate position lock hole 12b. And, it is provided so as to fit into the lateral position lock hole 12c and lock the rotating member 3 at that position.

The other side of the tip portion 16c1 of the connecting portion 16c is connected to the lock release lever 18 provided on the seat mounting member 4 by a first connecting wire 19. The lock release lever 18 is urged to always return to the locked position by the return spring 20. The base portion 18b of the lock release lever 18 is provided with a lock stopper 18b1 and an operation stopper 18b2 in a bifurcated shape, which are in contact with the seat mounting member 4 to rotate the handle portion 18a of the lock release lever 18 with a lock rotation angle and operation rotation. Regulate the angle to the required angle.

The left front tilt bracket 21a and the right tilt bracket 21b are provided symmetrically to the left and right of the upper surface of the rotating member 3, and the left front tilt bracket 21a is a left front half roller shaft in which the left front half guide roller 22a and the left rear half guide roller 23a are arranged back and forth. The right front tilt bracket 21b is provided with the right front half guide roller 22b and the right rear half guide roller 23b arranged in the front and rear by the right front half roller shaft 24b and the right rear half roller shaft 25b, respectively. Support and prepare.

A left holding plate to which one left inner guide surface 21a1 and the other left outer guide surface 21a2 are screwed to the tips of the left front half roller shaft 24a and the left rear half roller shaft 25a by the outer surface of the left side tilt bracket 21a. The left side tilt bearing mechanism 10a1 is provided by 26a, and one right inner guide surface 21b1 and the other right outer guide surface 21b2 are the tips of the right front half roller shaft 24b and the right rear half roller shaft 25b due to the outer surface of the right side tilt bracket 21b. The right side tilt bearing mechanism 10a2 is provided by the right pressing plate 26b screwed to the right side holding plate 26b to form the tilt bearing mechanism 10a.

A tilt lock receiving plate 27 is arranged on the upper surface of the rotating member 3 corresponding to the rotation direction of the seat mounting member 4.

The seat mounting member 4 is provided by a square frame body 28 composed of a front side frame plate 28a, a rear side frame plate 28b, a left side frame plate 28c, and a right side frame plate 28d.

The left intermediate mounting end 29a1 of the left tilt guide plate 29a is on the left side of the seat mounting member 4, that is, on the left side of the front frame plate 28a, and the left rear end 29a2 is on the left side of the rear frame plate 28b. The right intermediate mounting end 29b1 of the right tilt guide plate 29b is delivered to the right side of the front frame plate 28a, and the right rear end 29b2 is delivered to the right side of the rear frame plate 28b. Will be done.

The left tilt guide plate 29a and the right tilt guide plate 29b are cut out from a flat plate having the same thickness in the same shape. A left guide portion 29a3 is formed between the left intermediate mounting end portion 29a1 and the left rear end portion 29a2 of the left tilt guide plate 29a, and the left front half guide hole 30a and the left rear half guide hole 31a are left and right in the left guide portion 29a3. It is formed by penetrating each other. The right side tilt guide plate 29b also has a right guide portion 29b3 similar to the left side tilt guide plate 29a.

The left front half guide roller 22a and the left rear half guide roller 23a provided from the left end of the upper surface of the rotating member 3 are fitted into the left front half guide hole 30a and the left rear half guide hole 31a of the left left tilt guide plate 29a. NS. As shown in FIG. 7, the left front half guide hole 30a and the left rear half guide hole 31a are centered on an inner diameter arcuate bearing surface 32a having a radius R1 centered on the tilt center axis P and similarly centered on the tilt center axis P. The left front tilt guide plate mechanism 10b1 is provided so as to be formed by the outer diameter side arcuate bearing surface 32b having a radius R2 and tilting with the left front half guide roller 22a and the left rear half guide roller 23a as fulcrums.

Similar to the left tilt guide plate 29a, the right front tilt guide plate 29b also has the right front half guide hole 30b and the right rear half guide hole 31b with a right front half guide roller 22b arranged near the right end of the upper surface of the rotating member 3. The right second half guide roller 23b is fitted . The right front half guide hole 30b and the right second half guide hole 31b are formed by the inner diameter side arc-shaped bearing surface 32a and the outer diameter side arc-shaped bearing surface 32b similar to the left front half guide hole 30a and the left second half guide hole 31a. The right front half guide roller 22b and the right second half guide roller 23b are provided so as to tilt with the fulcrum, and the right side tilt guide plate mechanism 10b2 is provided. The tilt guide plate mechanism 10b is composed of a left side tilt guide plate mechanism 10b1 and a right side tilt guide plate mechanism 10b2.

The left intermediate mounting end 29a1 of the left tilt guide plate 29a and the right intermediate mounting end 29b1 of the right tilt guide plate 29b are provided with the left tip 29a4 and the right tip 29b4, respectively, with the upper portions extending toward the tip side. , The footrest base end frame 33 is connected to the left tip portion 29a4 and the right tip portion 29b4.

The footrest 35 is provided on the left bracket 34a and the right bracket 34b projecting forward to the left and right of the front end of the footrest base end frame 33 so that the footrest 35 can be tilted around the left support shaft 36a and the right support shaft 36b. There is.

In the square frame body 28, a tilt lock plate 37 corresponds to the tilt lock receiving plate 27 arranged on the upper surface of the rotating member 3 and is delivered to the front side frame plate 28a and the rear side frame plate 28b of the square frame body 28. It will be supported.

The tilt lock member 39 is rotatably supported by the tilt lock shaft 38 integrally provided on the tilt lock plate 37, and is provided so as to be always pulled in the lock direction by the urging of the lock spring 40. The lock pin 41 provided on the 39 is provided so as to be pressed against the tilt lock receiving plate 27 integrally provided on the rotating member 3. Then, in the standard tilt posture, the seat mounting member 4 fits into the standard posture lock groove 42a provided in the tilt lock receiving plate 27 and is locked in that posture. In the forward-up tilt posture, the seat mounting member 4 fits into the front-up posture lock groove 42b provided on the tilt lock receiving plate 27 and is locked in that posture. On the contrary, in the front-down posture, the lock groove 42c is fitted in the front-down posture lock groove 42c provided on the lock receiving plate 12 and locked in that posture.

A mounting base plate 43 is extended forward to the lower left front lower edge of the front side frame plate 28a of the square frame body 28, and a support shaft 44 is erected on the mounting base plate 43 to lock the lock. The release lever 18 is pivotally supported and is movably deployed around the required angle horizontally.

The lock release lever 18 is provided with a connecting portion 45, and an outer mounting hole 45a is provided on the outer diameter side of the supporting shaft 44 of the connecting portion 45, and a hook portion of the rotating member 3 is provided by a screw 46a screwed into the outer mounting hole 45a. A first connecting wire 19 for operating 16b is attached and connected, and an inner mounting hole 45b is provided on the inner diameter side close to the support shaft 44, and a screw 46b screwed into the inner mounting hole 45b is used to attach the tilt lock plate 37 of the square frame 27 to the tilt lock plate 37. A second connecting wire 47 that connects with the tilt lock member 39 to be deployed is attached.

The inner working regulation pin 14a and the outer working regulating pin 14b are urged in the upward direction by the compression spring 52a for the inner working regulating pin and the compression spring 52b for the outer working regulating pin, and they have different cam shapes. It is controlled by the cam plate 53 for the inner operation regulation pin and the cam plate 54 for the outer operation regulation pin. That is, the inner operation restricting pin 14a is provided so as to descend in the standard tilt posture, rise in the forward upward tilt posture, and descend in the forward downward tilt posture. The outer operation restricting pin 14b is provided so as to be raised in the standard tilt posture, lowered in the forward rising tilt posture, and lowered in the front falling tilt posture.

As shown in FIGS. 12 to 17, the inner operation restricting pin 14a and the outer actuating restricting pin 14b are each formed into a flat-headed conical columnar body 48, and are formed on the rotating member 3 in the outer peripheral direction from the center of the rotating bearing 7. An upper bearing 49a for the operation control pin and a lower bearing 49b for the operation control pin, which have an inner diameter edge and an outer diameter edge at the required radius and face each other vertically, are deployed. The bearing 49b has an upper bearing hole 50a for the inner working regulation pin and a lower bearing hole for the inner working regulating pin that slidably support the inner working regulating pin 14a and the outer working regulating pin 14b to the inner diameter side and the outer diameter side. The 50b, the lower bearing hole 51a for the outer operation regulation pin, and the upper bearing hole 51b for the outer operation regulation pin are separately arranged.

The inner operation restricting pin 14a is vertically fitted and supported in the upper bearing hole 50a for the inner operation regulation pin and the lower bearing hole 50b for the inner operation regulation pin, and the compression spring 52a for the inner operation regulation pin is supported. Is interposed between the inner operation regulation pin 14a and the lower bearing 49b for the operation regulation pin, and the inner operation regulation pin 14a is always urged upward and deployed.

The outer actuation regulation pin 14b is vertically and vertically fitted and supported in the upper bearing hole 51a for the outer actuation regulation pin and the lower bearing hole 51b for the outer actuation regulation pin, and a compression spring for the outer actuation regulation pin. 52b is interposed between the outer operation regulation pin 14b and the lower bearing 49b for the operation regulation pin, and is always urged upward and deployed.

The cam plate 53 for the inner operation restricting pin that connects with the upper end of the inner operation regulation pin 14a on the rotating member 3 and pushes it down, and the outer operation regulation that connects with the upper end of the outer operation regulation pin 14b and pushes it down. The pin cam plate 54 is delivered to and deployed on the front side frame plate 28a and the rear side frame plate 28b of the square frame body 28.

The inner operation regulation pin cam plate 53 is provided on the inner operation regulation pin standard operation convex surface portion 55 that pushes the inner operation regulation pin 14a to the lower position Y2 when the lower surface 53a is in the seat standard inclination position with respect to the tilt center axis P. The inner operation regulation pin 14a is moved to the ascending position Y1 when the forward ascending tilt posture is activated, and the inner actuating regulation pin 14a is moved to the lowering position Y2 when the forward ascending tilt posture is activated. It is formed on each of the convex surface portions 57 for the front lowering operation of the inner operation restricting pin to be operated.

The outer actuating control pin cam plate 54 has a concave surface portion 58 for standard actuation of the outer actuating regulation pin that moves the outer actuating regulation pin 14b to the ascending position Y1 when the lower surface 54a is in the seat standard tilt posture position with respect to the tilt center axis P. On the outside, the outer operation regulating pin 14b is pushed down to the lowering position Y2 when the front raising tilt posture is activated, and the outer working regulating pin is pushed down to the outer working regulation pin lowering position Y2 when the front lowering tilt posture is activated. It is formed on each of the convex surface portions 60 for lowering the front of the operation regulation pin.

Since the vehicle seat device 1 of the embodiment of the present invention is configured as described above, it has a manual handle 61 of the seat mounting member 4 in the standard tilt posture installed on the vehicle floor 5 and has an unlock lever 18. When grasped, the first connecting wire 19 connected to the lock release lever 18 is pulled, and the hook portion 16b of the rotation lock member 16 is disengaged from the storage position lock hole 12a of the rotation lock receiving plate 12 integrally provided with the base member 2 and rotates. The lock is released. Therefore, the lateral rotation can be performed.

When the manual handle 61 is held, the seat mounting member 4 is rotated in the lateral direction, and the lock release lever 18 is released, the hook portion 16b of the rotary lock member 16 is pulled by the traction spring 17, and the tip of the hook portion 16b is engaged. When the portion 16b1 rubs the outer peripheral surface of the rotation lock receiving plate 12 and corresponds to the lateral rotation intermediate position lock hole 12b, the portion 16b1 is automatically fitted to lock the rotation. Further, at this position, the inner operation restricting pin 14a at the descending position Y2 collides with the rear side intermediate collision portion 13a2 of the inner operation restricting plate 13a to stop the rotation.

Again, hold the manual handle 61, grasp the lock release lever 18, remove the hook portion 16b of the rotation lock member 16 from the lateral rotation intermediate position lock hole 12b, and connect the lock release lever 18 and the tilt lock member 39 to the second connection. When the wire 47 is pulled, the tilt lock member 39 rotates around the tilt lock shaft 38 in the release direction against the lock spring 40, and the lock pin 41 is disengaged from the standard posture lock groove 42a. Therefore, in that state, the seat mounting member 4 is held by the manual handle 61, and as shown in FIG. 7, the left front half guide hole 30a and the left rear half guide hole 31a of the left tilt guide plate 29a of the seat mounting member 4 are left tilt brackets. The left front half guide roller 22a and the left rear half guide roller 23a of 21a slide back and forth around a radius centered on one point, and the right tilt guide plate 29b of the seat mounting member 4 is also supported in the same manner and has a radius centered on one point. Slide back and forth around to operate in a forward tilted posture. If the lock release lever 18 is released at the end of the operation of the forward upward tilt posture, the lock pin 41 corresponds to the forward upward tilt posture lock groove 42b. It locks. When the seat mounting member 4 rotates in the forward ascending tilt posture, the inner operation restricting pin 14a moves to the ascending position Y1 to eliminate the collision with the rear side intermediate collision portion 13a2. Then, the hook portion 16b of the rotation lock member 16 can be refitted into the lateral rotation intermediate position lock hole 12b to lock the rotation. Here, however, release the lock release lever 18 at shifted hook portion 16b of the rotation lock member 16 slightly rotates sideways while gripping the lock release lever 18 transversely direction from YokoMuko rotational middle position locking hole 12b , The lock pin 41 is fitted into the forward upward tilt posture lock groove 42b to lock the operating state of the forward upward tilt posture, and the tip engaging portion 16b1 of the hook portion 16b of the rotary lock member 16 is placed on the outer periphery of the rotary lock receiving plate 12. Rub the surface. Therefore, the seat mounting member 4 can be extended out of the vehicle and rotated sideways.

When the seat mounting member 4 is rotated by holding the manual handle 61 and reaches the lateral position, the lateral position stop surface 63b of the rotation restricting elongated hole 62 provided on the upper surface of the rotating member 3 stands on the upper surface of the inner bearing 7a. It collides with the stop pin 64 and stops, and the lateral rotation is completed. Again, when the lock release lever 18 is released, the hook portion 16b of the rotation lock member 16 automatically fits into the lateral position lock hole 12c to lock the rotation. Then, holding the manual handle 61, grasping the lock release lever 18, the tilt lock member 39 connected to the lock release lever 18 is rotated around the tilt lock shaft 38 against the lock spring 40 in the release direction, and the lock pin is With the 41 removed from the forward rising posture lock groove 42b and the manual handle 61 in that state, the seat mounting member 4 is attached to the left tilt guide plate 29a and the right tilt guide plate 29b of the seat mounting member 4, as shown in FIG. The posture tilt means 10 slides back and forth around a radius centered on one point to operate the posture tilting forward. When the lock release lever 18 is released at the end of the operation to the forward lowering tilt posture, the lock pin 41 corresponds to the forward lowering posture lock groove 42c. The state of is locked.

When the seat mounting member 4 operates in the forward downward tilt posture, the inner operation regulation pin 14a moves to the lower position Y2, and when the seat mounting member 4 retracts and rotates in the vehicle in the forward downward tilt posture, the inner operation regulation pin 14a collides with the front collision portion 13a3. Then the rotation is suppressed.

Next, when the seat mounting member 4 is retracted and rotated in the vehicle, the operation of the seat mounting member 4 from the forward downward tilt posture to the forward upward tilt posture is performed by holding the manual handle 61, gripping the lock release lever 18, and hooking the rotation lock member 16. The portion 16b is removed from the lateral position lock hole 12c, the tilt lock member 39 is rotated around the tilt lock shaft 38 in the release direction against the lock spring 40, and the lock pin 41 is removed from the forward lowering posture lock groove 42c. In that state, hold the manual handle 61 and move the seat mounting member 4 around one point by the posture tilt means 10 of the left tilt guide plate 29a and the right tilt guide plate 29b of the seat mounting member 4, as shown in FIG. Slide back and forth around to operate in a forward tilted posture. If the lock release lever 18 is released at the end of the operation of the forward-up tilt posture, the lock pin 41 corresponds to the front-up posture lock groove 42b. The operating state is locked.

The inner operation restricting pin 14a moves to the ascending position Y1 by the operation of the seat mounting member 4 in the forward ascending tilt posture, and the collision of the front collision portion 13a3 is automatically eliminated. Therefore, the lock is released by holding the manual handle 61. The lever 18 can be gripped, and the seat mounting member 4 can be retracted and rotated in the vehicle together with the rotating member 3 in a forward tilted posture. When the seat mounting member 4 approaches the rotation storage position in the forward rising tilt posture, the outer operation restricting pin 14b moved to the descending position Y2 collides with the standard tilt return collision portion 13b1, so that the seat mounting member 4 rotates. Stop. Again, when the lock release lever 18 is released, the hook portion 16b of the rotation lock member 16 automatically fits into the lateral rotation intermediate position lock hole 12b to lock the rotation. Therefore, the seat mounting member 4 is tilted from the forward tilted posture to the standard tilted posture. Then, the outer operation restricting pin 14b moves from the standard tilt return collision portion 13b1 to the ascending position Y1 to eliminate the collision. Therefore, the lock release lever 18 is grasped again, the hook portion 16b of the rotation lock member 16 is removed from the lateral rotation intermediate position lock hole 12b to release the rotation lock, and the seat mounting member 4 is rotated and stored by holding the manual handle 61. The storage position stop surface 63a of the rotation regulation elongated hole 62 provided on the upper surface of the rotating member 3 collides with the stop pin 64 erected on the upper surface of the rotary bearing 7 and stops. Therefore, if the lock release lever 18 is not operated, the hook portion 16b of the rotation lock member 16 automatically fits into the storage position lock hole 12a to lock the rotation of the seat mounting member 4 and hold it in the rotation storage position. do.

In the embodiment of the present invention, the rotation lock release and the tilt lock release are performed by the same lever for the purpose of improving convenience (the lever is not changed), but even if separate release levers are configured. It's a good one.

In the vehicle seat device 1 of the embodiment of the present invention, as shown in FIG. 18, the posture tilting means 10 is a left front half guide hole 30a, a left rear half guide hole 31a, and a right side tilt guide plate 29b of the left tilt guide plate 29a. The right front half guide hole 30b and the right second half guide hole 31b are arcuate on the inner diameter side of the radius R1 centered on the tilt center axis P. Since the shape bearing surface 32b is formed respectively, the left front half guide roller 22a and the left rear half guide roller 23a, and the right front half guide hole 30b and the right rear half guide hole that fit into the left front half guide hole 30a and the left rear half guide hole 31a are formed. The right front half guide roller 22b and the right rear half guide roller 23b that fit into 31b are tilted with their respective fulcrums as fulcrums, and their standard tilt posture center of gravity G1, forward ascending tilt posture center of gravity G2, and front falling tilt posture. The center of gravity G3 and the range of movement are within a small range of movement. This demonstrates that the operating force of holding and operating the manual handle is small. According to the conventional posture tilting means (Reference 2) shown in FIG. 19, the center of gravity position g1 of the standard tilt posture, the center of gravity position g2 of the forward rising tilt posture, and the forward falling tilt posture with respect to the tilt central axis P1. There is a drawback that the position of the center of gravity is g3, which is far away from the tilt center axis P1 and the operating force of the manual handle is greatly increased.

In the vehicle seat device of the present invention, a footrest is set at a position lower than the door opening to ensure a good standard riding posture, and when rotating, the seat is operated in a forward tilting posture and in that state. It is possible to provide a device that can rotate the seat from the front side to the side of the vehicle and from the side to the front side of the vehicle without interfering with the vehicle by locking the door.

In the vehicle seat device of the present invention, when the seat is in the vehicle sideways direction, the seat operates from the forward ascending tilt posture to the standard tilt posture and the forward descending tilt posture, and both tilt postures can be locked, so that it is easy to get on and off the seat. It brings the convenience of being able to do it.

In the vehicle seat device of the present invention, since the seat cannot be stored in the vehicle interior storage position unless it is operated in the standard tilt posture, the conversion to the standard tilt posture is forced and the safe traveling riding posture is maintained.

In the vehicle seat device of the present invention, when the seat is rotated from the front to the side of the vehicle, when the release lever is operated, the storage position lock is released and at the same time the tilt lock is released. Therefore, the lock can be released by an easy operation. In addition, the seat can be easily rotated in the lateral direction, and when the release lever is released when the seat is slightly rotated, the tilt lock is performed in that state to maintain the tilt posture, and the rotation lock means reaches the next. Automatically engages with the lock hole to stop rotation.

The rotation locking means of the vehicle seat device of the present invention operates according to the position of the seat, and the rotation regulating means operates according to the posture of the seat. Posture is forced and malfunctions are definitely improved.

In the vehicle seat device of the present invention, when the seat is rotated from the vehicle sideways to the forward direction, the release lever is operated to release the lateral position lock of the rotation locking means and the posture locking means of the standard tilt posture or the forward downward tilt posture. , The seat is tilted to the forward tilt posture, and in the forward tilt posture, the collision with the front collision part of the inner operation regulation plate of the rotation regulating means is released and the rotation becomes possible, and the release lever is operated to rotate forward. By doing so, the tilt lock is applied, the seat can be reliably rotated forward in the tilted posture, the release lever is released to hold the rotation locking means in the standby state, and the posture locking means is raised forward. It can be rotated forward as a lock in the tilted posture.

In the vehicle seat device of the present invention, when the seat is rotated forward in the vehicle in the forward tilted posture, the release lever is released and the rotation lock means is rotated in the rotation lock standby state. Therefore, the rotation lock means is in the intermediate rotation position. The lock is activated and the rotation is stopped by colliding with the standard tilt return collision portion of the rotation regulating means. Then, the release lever is operated to release the mid-rotation position lock of the rotation lock means, the attitude lock means of the forward upward tilt posture is released, and the seat is tilted from the forward upward tilt posture to the standard tilt posture while the release lever is operated. Then, the collision part for standard tilt return of the rotation regulating means is released, the seat is rotated to the storage position in the standard tilt posture, the release lever is released, the rotation lock means is set to the rotation lock standby state, and the forward rotation is stored. At the retracted position, the seat rotation locking means locks to the retracted position, and the tilt locking means locks to the standard tilt posture.

The inner operation regulation pin and the outer operation regulation pin constituting the rotation regulation means in the vehicle seat device of the present invention are separately arranged inside and outside in the same radiation extending from the rotation center of the rotating member, and are arranged by the tilt posture of the seat mounting member. Since the collision is stopped by corresponding to the collision portion provided on the inner operation regulation plate and the outer operation regulation plate which are raised and lowered respectively, it is possible to correspond only to the rotation in one direction and the tilt posture is changed. As a result, it is possible to attach rotation regulation means that can release the regulation respectively.

1 Vehicle seat device of the embodiment 2 Base member 3 Rotating member 4 Seat mounting member 5 Vehicle floor 6 Screw 7 Rotating bearing 7a Inner bearing 7b Outer bearing 8 Seat rotation supporting means 9 Rotating locking means 10 Attitude tilting means 10a Tilt supporting mechanism 10a1 left tilt support mechanism 10a2 right tilt support mechanism 10b tilt guide plate mechanism 10b1 left tilt guide plate mechanism 10b2 right tilt guide plate mechanism 11 posture tilt lock means 12 rotates the lock receiving plate 12a stores position locking hole 12b YokoMuko rotation intermediate position lock hole 12c YokoMuko Position lock hole 13 Rotation control means 13a Inner operation regulation plate 13a1 Free contact surface 13a2 Rear side midway collision part 13a3 Front side collision part 13b Outer operation regulation plate 13b1 Standard tilt return collision part 14a Inner operation regulation pin 14b Outer operation regulation pin 15 rotation Lock shaft 16 Rotating lock member 16a Base end 16b Hook 16b1 Tip engagement 16c Connecting part 16c1 Tip 17 Tow spring 18 Unlocking lever 18a Handle 18b Base 18b1 Lock stopper 18b2 Operation stopper 19 1st connecting wire 20 Return spring 21a Left side tilt bracket 21a1 Left inside guide surface 21a2 Left outside guide surface 21b Right side tilt bracket 21b1 Right inside guide surface 21b2 Right outside guide surface 22a Left front half guide roller 22b Right front half guide roller 23a Left second half guide roller 23b Right second half guide roller 24a Left First half roller shaft 24b Right front half roller shaft 25a Left second half roller shaft 25b Right second half roller shaft 26a Left presser plate 26b Right presser plate 27 Tilt lock bearing plate 28 Square frame 28a Front frame plate 28b Rear frame plate 28c Left frame plate 28d Right side Frame plate 29a Left side tilt guide plate 29a1 Left middle mounting end 29a2 Left rear end 29a3 Left guide 29a4 Left tip 29b Right tilt guide plate 29b1 Right middle mounting end 29b2 Right rear end 29b3 Right guide 29b4 Right tip 30a Left front half guide hole 30b Right front half guide hole 31a Left second half guide hole 31b Right second half guide hole 32a Inner diameter arc-shaped bearing surface 32b Outer diameter side arc-shaped bearing surface 33 Footrest base end frame 34a Left bracket 34b Right bracket 35 Footrest 36a Left support shaft 36b Right support shaft 37 Tilt lock plate 38 Tilt lock shaft 39 Tilt lock member 40 Lock spring 41 Lock pin 42a Standard posture lock groove 42b Front rising posture lock groove 42c Front falling posture lock groove 43 Mounting base plate 44 Support shaft 45 Connecting part 45a Outer mounting hole 45b Inner mounting hole 46a Screw 46b Screw 47 Second Connecting wire 48 Flat-headed conical columnar body 49a Upper bearing for operation regulation pin 49b Lower bearing for operation regulation pin 50a Upper bearing hole for inner operation regulation pin 50b Lower bearing hole for inner operation regulation pin 51a Upper bearing hole for outer operation regulation pin 51b Lower bearing hole for outer operation regulation pin 52a Compression spring for inner operation regulation pin 52b Compression spring for outer operation regulation pin 53 Cam plate for inner operation regulation pin 53a Lower surface 54 Cam plate for outer operation regulation pin 54a Lower surface 55 Inner operation regulation pin Convex part for standard operation 56 Inner operation regulation pin Concave part for forward raising operation 57 Inner operation regulation pin Convex part for front lowering operation 58 Outer operation regulation pin Concave part for standard operation 59 Outer operation regulation pin Convex part for front raising operation 60 Outside Operation regulation pin Forward lowering Convex surface for operation 61 Manual handle 62 Rotation regulation long hole 63a Storage position Stop surface 63b Sideways position Stop surface 64 Stop pin G1 Standard tilt position center of gravity of vehicle seat device in the example G2 For the vehicle in the example front rising tilt orientation of the gravity center position g2 conventional car dual seat device of a standard tilt position of the center of gravity g1 conventional seat apparatus for a vehicle before falling tilt orientation of the seat apparatus of the center of gravity G3 previous examples upward tilt orientation of the seat device Position of the center of gravity g3 Position of the center of gravity of the conventional vehicle seat device in the forward downward tilt posture P Tilt center axis of the vehicle seat device of the embodiment P1 Tilt center axis of the conventional vehicle seat device R1 Inner diameter side arcuate bearing surface Radiation to be formed R2 Radius to form arc bearing cotton on the outer diameter side Y1 Raising position of the inner working regulation pin and outer working regulating pin of the example Y2 Lowering position of the inner working regulating pin and the outer working regulating pin of the embodiment

Claims (6)

A seat rotation supporting means (8) for rotating the seat from the frontward direction of the vehicle to the sideways direction of one outside of the vehicle and a rotation locking means (9) for locking the seat at a predetermined rotation angle position. A posture tilting means (10) for tilting the seat posture to a standard tilt posture, a forward rising tilt posture, and a forward falling tilt posture, and a posture tilt locking means (11 ) for locking the posture tilting means (10) to the respective postures. ) , And when the seat is rotated laterally from one of the vehicle's outward rotation storage positions in the front-rear direction of the vehicle, it is rotated by a predetermined angle from the rotation storage position to just before it interferes with the door opening. In the middle of lateral rotation, tilt the seat by a predetermined angle so that the seat posture rises forward and tilts, so that the footrest position is moved to a higher position than the door opening, and in that state, the vehicle is rotated until it is turned sideways. When the tilt posture is tilted to the standard tilt posture or the forward downward tilt posture by a predetermined angle when the lateral rotation of the vehicle is completed, the seat is held in a position where passengers can easily move up and down, and the seat is rotated from the lateral side to the forward direction of the vehicle. Tilts to the forward-raising position, moves the footrest to a position higher than the door opening, rotates to the lateral rotation halfway position, and then tilts to the standard tilting position. After that, it is a vehicle seat device that rotates to the rotation storage position.
The seat rotation support means (8) is provided from a rotary bearing (7) that connects a base member (2) fixed to the floor of the vehicle and a rotary member (3), and the rotary member (3) is provided with the rotary member (3). It has a rotation stop function that is fixed to the base member (2) and locked to a rotation storage position, a lateral rotation intermediate position, and a lateral rotation position by a rotation lock means (9) provided between the base member (2) and the rotation member (3). The posture tilting means (10) is provided on the rotating member (3) and the seat mounting member (4), the seat mounting member (4) tilts with respect to the rotating member (3), and the posture tilting means (10). It has a function of being locked to a standard tilt posture, a forward tilt posture, and a forward downward tilt posture by the posture tilt lock means (11) attached to the above.
The rotating member (3) is provided with an arc-shaped rotation restricting elongated hole (62) having a radius centered on the rotation center of the rotating member (3), and one of the inner end surfaces thereof is a storage position stop surface (63a). The other inner end surface is formed on the lateral position stop surface (63b), and the stop is fitted into the rotation control elongated hole (62) of the rotation member (3) on the upper surface of the inner bearing (7a) of the rotation bearing (7). The pin (64) is fixed and deployed, and the rotating member (3) is restricted to the required rotation angle with respect to the base member (2) integrated with the inner bearing (7a).
In the rotary lock means (9), the rotary lock receiving plate (12) is located on the outer side around the axis of the rotary bearing (7), and is mounted on the base member (2) and deployed, and inside the outer side thereof. An operation control plate (13a) is provided, and the rotation lock receiving plate (12) rotates slightly in the lateral direction with a storage position lock hole (12a) in which the rotation member (3) holds the seat in the rotation storage position. In the lateral rotation intermediate position lock hole (12b) held in the lateral rotation intermediate position, the lateral position lock hole (12c) held in the lateral rotation position, and the rotation lock shaft (15) provided in the rotating member (3). A rotation lock member (16) is provided in which the base end portion (16a) is pivotally supported so as to be rotatable horizontally, and the rotation lock member (16) has a hook portion (16b) on the base member (2). One side of the tip end portion (16c1) of the connecting portion (16c) formed at a required angle from the base end portion (16a) to the hook portion (16b) and the rotating member (16c1) corresponding to the rotation lock receiving plate (12) of the above. A traction spring (17) is provided between 3), and a storage position of the rotation lock receiving plate (12) corresponding to the tip engaging portion (16b1) of the hook portion (16b) of the rotation lock member (16). It is provided so as to fit into the lock hole (12a), the lateral rotation intermediate position lock hole (12b), and the lateral rotation position lock hole (12c) to lock the rotating member (3) at that position.
The attitude tilt means (10) includes a rotating member (3) on which a tilt bearing mechanism (10a) is arranged on the upper surface, and a tilt guide plate mechanism (10b) that slides and tilts back and forth on the tilt bearing mechanism (10a). A vehicle seat device provided from the seat mounting member (4) to be mounted. A symmetrical left tilt bracket (21a) and right tilt bracket (21b) are provided on the upper surface of the rotating member (3) , and the left tilt bracket (21a) has a left front half guide roller (22a) and a left rear guide. The left front half roller shaft (24a) and the left rear half roller shaft (25a) are provided with rollers (23a) arranged in the front-rear direction, respectively, and the right tilt bracket (21b) is provided with the right front half guide roller (22b) and the right second half. guide rollers (23b) right half roller shaft was deployed around (24b) and provided with respective rotatably supported by the right late roller shaft (25b), one of the left inner guide surface by the outer surface of the left tilt bracket (21a) (21a1) is provided by a left pressing plate (26a) to which the other left outer guide surface (21a2) is screwed to the tips of the left front roller shaft (24a) and the left rear roller shaft (25b). Due to the outer surface of the right tilt bracket (21b) , one right inner guide surface (21b1) and the other right outer guide surface (21b2) are screwed to the tips of the right front half roller shaft (24b) and the right rear half roller shaft (25b). The vehicle seat device according to claim 1 , wherein a tilt bearing mechanism (10a) is provided by a right pressing plate (26b) that is worn and attached. The left tilt guide plate before and after the left side of the seat mounting member (4) (29a) has been similarly deployed right tilt guide plate on the right side of the seat mounting member (4) (29b) is passed s difference respectively, it said left A left guide portion (29a3) formed by penetrating the left front half guide hole (30a) and the left second half guide hole (31a) to the left and right is formed before and after the tilt guide plate (29a) , and the right tilt guide plate (29a3) is formed. 29 b) a similar right guide portions and left tilt guide plate (29a) (29b3) is formed, the rotation in the left half the guide hole (30a) and left late guide hole of the left tilt guide plate (29a) (31a) The left front half guide roller (22a) and the left rear half guide roller (23a) arranged near the left end of the upper surface of the member (3) are fitted, and the right front half guide hole (30b) of the right tilt guide plate (29b) is fitted. The right front half guide roller (22b) and the right rear half guide roller (23b) arranged near the right end of the upper surface of the rotating member (3 ) are fitted into the right rear guide hole (31b) and can be tilted back and forth freely. The vehicle seat device according to claim 1. The left front half guide hole (30a) and the left second half guide hole (31a) and the right front half guide hole (30b) and the right second half guide hole (31b) of the tilt guide plate mechanism (10b ) are the same centering on the same shaft core. includes a radius of outer circle arc surface (32 b) and the same radius of an inner diameter of the circular arc surface (32a) respectively formed, the left front half guide roller and (22a) left late guide roller and (23a) right half guide roller and (22b) The vehicle seat device according to claim 1 , wherein the right and rear guide rollers (23b) are fitted to each other and are provided so as to tilt about the axis. In the posture tilt lock means (11) , a tilt lock plate (37) is laterally supported in the front-rear direction corresponding to the tilt lock receiving plate (27) provided on the upper surface of the rotating member (3), and the tilt lock is provided. The tilt lock member (39) is rotatably supported by the tilt lock shaft (38) integrally provided on the plate (37) , and is provided so as to be always pulled in the lock direction by the urging of the lock spring (40). The lock pin (41) provided on the tilt lock member (39) is provided so as to be pressed against the tilt lock receiving plate (27) integrally provided on the rotating member (3) , and the seat mounting member ( When 4) is in the standard tilt posture, it is fitted into the standard posture lock groove (42a) provided in the tilt lock receiving plate (27) and locked in that posture, and the seat mounting member (4) is in the forward rising tilt posture. , It is fitted in the front rising posture lock groove (42b) provided in the tilt lock receiving plate (27) and locked in that posture, and conversely, in the front falling tilt posture, it is provided in the rotation lock receiving plate (12). The vehicle seat device according to claim 1 , wherein the front lowering posture lock groove (42c) is fitted and locked in that posture. The inner operation restricting plate (13a) and the outer operation restricting plate (13b) constituting the rotation restricting means (13) are attached to the base member (2) and deployed on the outer side of the rotation lock receiving plate (12). The inner operation restricting plate (13a) is separated from the rotating member (3) with a required radius centered on the rotation axis of the rotary bearing (7) at a required interval on the inner diameter side and the outer diameter side, and the rotating member is separated from each other. (3) The inner operation restricting pin (14a) and the outer operation restricting pin (14b) held in place are arranged corresponding to the rotation loci of the inner actuating restricting pin (14a), and the inner actuating regulating plate (13a) is formed by the inner actuating regulating pin (13a). As a portion corresponding to 14a) , a free contact surface portion (13a1) connected to the lower end edge thereof is provided on the upper surface, and a rear end edge is provided in the rear side intermediate collision portion (13a2) , and the lateral rotation intermediate position lock hole (12b) is provided. ) Collides with the lowered inner operation restricting pin (14a) to stop lateral rotation, and the opposite front end edge is provided at the front collision portion (13a3) and collides with the lowered inner operation restricting pin (14a). Then, the rotation to return to the rotation storage position is stopped, and the inner operation restricting plate (13a) is after the portion corresponding to the inner operation restricting pin (14a) as a portion corresponding to the outer actuating restricting pin (14b). An outer operation restricting plate (13b) extending rearward from the rear side intermediate collision portion (13a2) of the edge edge is provided, and the front edge thereof is provided in the standard tilt return collision portion (13b1). In the standard tilt return collision portion (13b1), the lowered outer operation control pin ( 14b ) collides with the lower side rotation restricting pin (14b) to stop the rotation of the seat mounting member (4) in response to the lateral rotation intermediate position lock hole (12b), and the seat mounting member (4) rises forward. The vehicle seat device according to claim 1 , which is provided so as to encourage conversion of a tilt posture to a standard tilt posture.

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