JP7047670B2 - Vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat.

Vehicles such as automobiles are equipped with a seat cushion on which the occupant sits and a vehicle seat equipped with a seat back that supports the occupant's upper body. Depending on the vehicle model, the seat cushion may be installed at a high position away from the road surface. There is. In this case, when the occupant opens the side door and tries to get off the vehicle, it becomes difficult for the occupant to reach the road surface, and it is undeniable that the so-called footing property deteriorates.

Therefore, in the vehicle seat of Patent Document 1, the seat cushion can be displaced between the normal position and the disembarkation position. Specifically, the front end portion of the seat cushion when the vehicle is in the disembarkation position and the side end portion on the outer side in the vehicle width direction are set to be lower than those in the normal position. Further, a spring for urging the seat cushion toward the normal position is provided, and the front end portion and the side end portion of the seat cushion are connected to the parking lever by a wire.

Then, when the parking lever is operated to the parking position, the seat cushion moves from the normal position to the disembarking position against the urging force of the spring due to the operating force at that time. When the seat cushion moves to the disembarkation position in this way, the front end portion and the side end portion of the seat cushion are lowered to a position lower than the normal position. In this case, when the occupant seated on the seat tries to get off by opening the side door, the front end and the side end of the seat cushion are lowered to a position lower than the normal position, so that the occupant's feet can easily reach the road surface. The footing is improved. Further, when the parking lever is operated to the parking position and then returned to the release position, the seat cushion returns from the disembarkation position to the normal position due to the urging force of the spring.

Japanese Unexamined Patent Publication No. 2018-58474

According to the vehicle seat of Patent Document 1, although it becomes easier for the occupant seated in the seat to reach the road surface when trying to get off, the seat cushion is in the normal position and in the getting-off position. The space under the occupant's feet does not change much because there is only a difference in whether the front end and the side end of the seat cushion are lowered. Therefore, when the occupant tries to extend his / her foot toward the road surface for getting off, the foot may come into contact with parts or the like around the space and hinder getting off. Therefore, when the occupant seated on the seat cushion tries to get off, there is room for further improvement in making it easier to get off.

An object of the present invention is to provide a vehicle seat that allows an occupant to easily get off the vehicle.

Hereinafter, means for solving the above problems and their actions and effects will be described.
Vehicle seats that solve the above problems usually include a seat cushion on which the occupant sits, a moving mechanism that supports the seat cushion so that it can be displaced between the normal position and the disembarkation position, and a seat cushion. It is equipped with a spring that urges the position. This vehicle seat is provided with a lock mechanism capable of fixing the seat cushion in the normal position when the seat cushion is moved to the normal position, while releasing the fixing of the seat cushion in the normal position. Further, the disembarkation position is a position where the seat cushion is tilted forward behind and below the normal position. Further, in the above-mentioned movement mechanism, the movement of the seat cushion from the normal position to the disembarkation position is performed by a force based on the weight of the occupant seated on the seat cushion, while the movement from the disembarkation position to the normal position is performed by the occupant sitting on the seat cushion. It is supposed to be performed by the urging force of the above spring in the state where it is not.

According to the above configuration, when the seat cushion is released from being fixed at the normal position by the lock mechanism, the seat cushion can be moved to the disembarkation position. Then, when the seat cushion is moved to the disembarkation position, the seat cushion is displaced to the rear and downward of the vehicle from the normal position, and the seat cushion is tilted forward as compared with the case where the seat cushion is in the normal position. Due to the rearward displacement of the seat cushion as described above, the space under the feet of the occupant seated on the seat cushion increases, so that when the occupant tries to extend his / her foot toward the road surface for disembarkation, the foot is described above. It does not interfere with getting off the vehicle by coming into contact with parts around the space. Further, the seat cushion is displaced downward and tilted forward as described above, so that the feet of the occupant who is about to get off can easily reach the road surface.

In the vehicle seat, the lock mechanism is connected to an operating member operated by the occupant when getting off the vehicle, and operates to release the fixing of the seat cushion in the normal position based on the operation of the operating member. It is conceivable to do.

According to this configuration, when the occupant operates the operating member to get off the vehicle, the lock mechanism releases the seat cushion from the normal position and the seat cushion can be moved from the normal position to the disembarkation position. Become. In this way, the operation of the operating member for getting off is associated with the operation for releasing the fixing by the lock mechanism, which is caused by releasing the fixing of the seat cushion in the normal position by the lock mechanism. Therefore, it is possible to prevent the movement of the occupant when getting off the vehicle from being disturbed. As a result, the occupants can get off smoothly.

It is conceivable that the lock mechanism is connected to the inside handle provided on the side door of the vehicle as the operation member.
According to this configuration, when the occupant tries to get off, the inside handle is operated to open the side door of the vehicle. When such an inside handle is operated, the lock mechanism releases the fixing of the seat cushion in the normal position, and the seat cushion can be moved from the normal position to the disembarkation position. Since the operation of the inside handle for getting off and the operation of the inside handle for releasing the fixing by the lock mechanism are related in this way, the fixing of the seat cushion in the normal position by the lock mechanism should be released. As a result, it is possible to prevent the occupants from getting out of the way and getting out of the way. As a result, the occupants can get off smoothly.

In the vehicle seat, when the seat cushion is in the normal position, the movement mechanism exerts a force based on the weight of the occupant seated on the seat cushion on the seat cushion in the direction toward the normal position. On the other hand, in the state where the seat cushion moves backward beyond the turning point from the normal position, the above-mentioned movement mechanism exerts a force based on the weight of the occupant seated on the seat cushion in the direction toward the disembarkation position with respect to the seat cushion. ..

According to the above configuration, simply by releasing the fixing of the seat cushion in the normal position by the lock mechanism, the movement of the seat cushion to the disembarkation position based on the weight of the occupant does not start, and the occupant kicks the floor in the vehicle by himself / herself. When the seat cushion is moved backward beyond the turning point, the seat cushion starts to move to the disembarkation position based on the weight of the occupant. Therefore, the occupant seated on the seat cushion may start moving the seat cushion to the disembarkation position by the weight of the occupant at a timing of his / her preference after releasing the fixing of the seat cushion in the normal position by the lock mechanism. can.

In the vehicle seat, the moving mechanism may include a lower frame attached to the vehicle, an upper frame attached to the seat cushion, and a front link and a rear link connecting the upper frame and the lower frame. Conceivable. The front link is rotatably supported with respect to the lower frame by a support shaft whose lower end extends in the vehicle width direction, while the upper end portion is rotatably supported with respect to the upper frame by a support shaft extending in the vehicle width direction. When the seat cushion is in the normal position, it is supposed to be in an upright position. Further, the rear link is formed longer than the front link and is located behind the vehicle from the front link, and is rotatably supported with respect to the lower frame by a support shaft whose lower end extends in the vehicle width direction. On the other hand, the upper end is rotatably supported with respect to the upper frame by a support shaft extending in the vehicle width direction, and the seat cushion is in a forward tilted state when it is in the normal position.

According to the above configuration, under the state where the seat cushion is released from the normal position by the lock mechanism, the seat cushion starts to move to the disembarkation position by the weight of the occupant seated on the seat cushion. Moves the seat cushion to the rear by kicking the floor inside the vehicle. In this case, the position of the seat cushion when the rear link is upright due to the rearward movement of the seat cushion is the turning point. Therefore, when the seat cushion is moved backward beyond the turning point, a force based on the weight of the occupant seated on the seat cushion acts in the direction toward the disembarkation position. You will be able to start moving the seat cushion to.

According to the present invention, the occupant can easily get off.

A side view schematically showing a vehicle seat with the seat cushion in the normal position. A side view schematically showing a vehicle seat in a state where the seat cushion is located at a turning point. A side view schematically showing a vehicle seat with the seat cushion in the disembarkation position. The perspective view which shows the operation mode of the inside handle by an occupant. The perspective view which shows the getting-off mode of an occupant in a state where a seat cushion is in a normal position. The perspective view which shows the getting-off mode of an occupant in a state where a seat cushion is in a getting-off position.

Hereinafter, an embodiment of a vehicle seat will be described with reference to FIGS. 1 to 6.
The vehicle seat 1 shown in FIGS. 1 to 3 is mounted on a vehicle 4 such as an automobile, and includes a seat cushion 2 on which an occupant sits and a seat back 3 for supporting the upper body of the occupant. The vehicle seat 1 also includes a moving mechanism 5 that supports the vehicle 4 so that the seat cushion 2 can be displaced between the normal position and the disembarking position.

Incidentally, FIG. 1 shows a state in which the seat cushion 2 is displaced to the normal position, and FIG. 3 shows a state in which the seat cushion 2 is displaced to the disembarkation position. The normal position of the seat cushion 2 (FIG. 1) is a position where the occupant seated on the vehicle seat 1 can be in an appropriate posture in the driving vehicle, and the seat cushion 2 is separated from the road surface depending on the vehicle type. It may be in a high position. In this case, when the occupant seated on the vehicle seat 1 tries to get off by opening the side door of the vehicle 4, it becomes difficult for the foot to reach the road surface, and the so-called footing property deteriorates.

Further, the disembarkation position of the seat cushion 2 (FIG. 3) is at the rear (right side of FIGS. 1 to 3) and below the normal position (FIG. 1) and at a position where the seat cushion 2 is tilted forward. be. Therefore, even if the normal position of the seat cushion 2 is a high position away from the road surface, if the seat cushion 2 is displaced from the normal position to the disembarkation position, the occupant seated on the vehicle seat 1 can easily disembark. .. Note that FIG. 2 shows a state in which the seat cushion 2 is located at a turning point between the normal position and the disembarkation position. Then, when the seat cushion 2 moves from the normal position to the disembarking position, the seat cushion 2 is displaced as shown in the order of FIGS. 1, 2, and 3.

The vehicle seat 1 is provided with springs 6 and 7 that urge the seat cushion 2 toward a normal position (FIG. 1). The moving mechanism 5 of the vehicle seat 1 moves from the normal position to the disembarking position by a force based on the weight of the occupant seated on the seat cushion 2, while the moving mechanism 5 moves from the disembarking position to the normal position on the seat cushion 2. It is supposed to be performed by the urging force of the springs 6 and 7 when the occupant is not seated.

Specifically, the moving mechanism 5 exerts a force based on the weight of the occupant seated on the seat cushion 2 when the seat cushion 2 is in the normal position and in an arbitrary position from the normal position to the turning point. It is configured to act on the seat cushion 2 in the direction toward the normal position. Further, when the seat cushion 2 is in a state of moving backward beyond the turning point from the normal position, the moving mechanism 5 applies a force based on the weight of the occupant seated on the seat cushion 2 to the disembarking position with respect to the seat cushion. It is also configured to act in the direction of the direction.

A lock mechanism 8 capable of fixing the seat cushion 2 in the normal position when the seat cushion 2 moves to the normal position, while releasing the fixing of the seat cushion 2 in the normal position in the vehicle seat 1. Is provided. As shown in FIG. 1, the lock mechanism 8 is connected to an operation member operated by a occupant seated on the vehicle seat 1 when getting off, for example, an inside handle 9 provided on a side door of the vehicle 4 via a wire 10. The seat cushion 2 is operated to release the fixing of the seat cushion 2 at the normal position based on the operation of the inside handle 9.

Incidentally, when the side door of the vehicle 4 is fixed in the closed state, the fixing can be released and opened by the operation of the inside handle 9 by the occupant with an operation amount of a predetermined amount X1 or more. Further, when the occupant operates the inside handle 9 with an operation amount of a predetermined amount X2 or more larger than the predetermined amount X1, the lock mechanism 8 fixes the seat cushion 2 in the normal position by the lock mechanism 8 in accordance with the operation. It is configured to be released.

Next, the moving mechanism 5 will be described in detail.
As shown in FIG. 1, the moving mechanism 5 includes a lower frame 11 attached to the vehicle 4, upper frames 12, 13 attached to the seat cushion 2, a front link 14 connecting the upper frame 12 and the lower frame 11, and a front link 14. A rear link 15 for connecting the upper frame 13 and the lower frame 11 is provided.

In the front link 14, the lower end portion is rotatably supported with respect to the lower frame 11 by the support shaft 16 extending in the vehicle width direction (direction orthogonal to the paper surface in FIG. 1), while the upper end portion extends in the vehicle width direction. It is rotatably supported by the support shaft 17 with respect to the upper frame 12. Further, the front link 14 is set to be in an upright state when the seat cushion 2 is in the normal position (FIG. 1).

On the other hand, the rear link 15 is formed longer than the front link 14, and is located behind the vehicle 4 (on the right side in FIG. 1) with respect to the front link 14. After this, in the link 15, the lower end portion is rotatably supported with respect to the lower frame 11 by the support shaft 18 extending in the vehicle width direction, while the upper end portion is rotatably supported with respect to the upper frame 13 by the support shaft 19 extending in the vehicle width direction. It is rotatably supported. Further, the rear link 15 is set to be in a forward tilted state when the seat cushion 2 is in the normal position.

In this case, the seat cushion 2 is in an upright state due to the backward movement of the seat cushion 2 indicated by the arrow Y1 in FIG. 1, that is, in the state shown in FIG. The position is the turning point.

Then, when the seat cushion 2 is in the normal position and in an arbitrary position from the normal position to the turning point, the force based on the weight of the occupant seated on the seat cushion 2 and the springs 6 and 7 are used. The urging force urges the seat cushion 2 toward the normal position. Further, when the seat cushion 2 is behind the turning point, the seat cushion 2 is directed toward the disembarkation position against the urging force of the springs 6 and 7 by the force based on the weight of the occupant seated on the seat cushion 2. Will be moved.

Next, the operation of the vehicle seat 1 will be described.
In the driving vehicle, the seat cushion 2 of the vehicle seat 1 is fixed at the normal position (FIG. 1) by the lock mechanism 8. Then, the occupant seated on the vehicle seat 1 operates the inside handle 9 as shown in FIG. 4 in order to open the side door of the vehicle 4 when trying to get off after the vehicle is stopped. Then, when the occupant operates the inside handle 9 with an operation amount of a predetermined amount X1 or more, the side door fixed in the closed state can be opened. Under this condition, the occupant can push open the side door to get off the vehicle.

Further, when the occupant operates the inside handle 9 with an operation amount of a predetermined amount X2 or more, which is larger than the predetermined amount X1, the lock mechanism 8 releases the fixing of the seat cushion 2 at the normal position (FIG. 1). The seat cushion 2 can be moved from the normal position to the disembarkation position. At this time, the seat cushion 2 is urged toward the normal position by the force based on the weight of the occupant seated on the seat cushion 2 and the urging force of the springs 6 and 7. Therefore, as described above, the movement of the seat cushion 2 to the disembarkation position based on the weight of the occupant does not start only by releasing the fixing of the seat cushion 2 at the normal position by the lock mechanism 8.

After the seat cushion 2 is released from the normal position by the lock mechanism 8, when the occupant himself kicks the floor in the vehicle 4 or the like to move the seat cushion 2 backward beyond the turning point (FIG. 2). Due to the force based on the weight of the occupant seated on the seat cushion 2, the seat cushion 2 starts to move toward the disembarkation position (FIG. 3) against the urging force of the springs 6 and 7. Specifically, as shown in FIG. 2, the position of the seat cushion 2 when the rear link 15 of the moving mechanism 5 stands upright becomes the above-mentioned turning point, and when the seat cushion 2 is moved backward beyond the turning point, the occupant Since the force based on the weight of the occupant acts in the direction toward the disembarkation position, the movement of the seat cushion 2 to the disembarkation position by the weight of the occupant is started.

Then, when the seat cushion 2 is moved to the disembarkation position (FIG. 3), the seat cushion 2 is displaced to the rear and downward of the vehicle 4 from the normal position (FIG. 1), and the seat cushion 2 is normally displaced. As shown by the arrow Y2 in FIG. 3, it is in a forward tilted state as compared with the case where it is in the position. As a result, the hip point (position of the hip joint) of the occupant seated on the seat cushion 2 is located as shown by P1 in FIG. 1 at the normal position, while from P1 as shown by P2 in FIG. 3 at the disembarking position. Will be located behind and below the vehicle.

Then, the seat cushion 2 that has moved to the disembarkation position is displaced rearward as described above, so that the space under the feet of the occupant seated on the seat cushion 2 becomes large, so that the occupant is on the road surface for disembarkation. When trying to extend the legs toward the vehicle, the legs do not come into contact with parts or the like around the space and prevent the vehicle from getting off the vehicle. Further, the seat cushion 2 that has moved to the disembarkation position is in a state of being displaced downward and tilted forward as described above, so that the feet of the occupant who is about to disembark can easily reach the road surface.

5 and 6 show a state in which the occupant stretches his / her legs when the seat cushion 2 is in the normal position, and a state in which the occupant stretches his / her legs when the seat cushion 2 is in the disembarkation position. It shows the state.

As can be seen from FIG. 5, when the seat cushion 2 is in the normal position, when the occupant extends his / her foot toward the road surface, the back side of the crotch easily interferes with the seat cushion 2, so that the occupant's foot However, it becomes difficult to reach the road surface and the footing property deteriorates. As a result, only the toes of the occupant reach the road surface, and the heel is lifted by the length L from the road surface. On the other hand, as shown in FIG. 6, when the seat cushion 2 is in the disembarkation position, when the occupant extends his / her foot toward the road surface, the back side of the crotch is less likely to interfere with the seat cushion 2, so that the occupant It makes it easier for your feet to reach the road surface and improves your footing. As a result, the occupant's toes and heels reach the road surface as a whole.

When the weight of the occupant ceases to act on the seat cushion 2 after the occupant disembarks, the seat cushion 2 at the disembarkation position as shown in FIG. 3 is as shown in FIG. 2 by the urging force of the springs 6 and 7. It moves to the turning point, and then moves to the normal position as shown in FIG. Then, when the seat cushion 2 moves to the normal position, the seat cushion 2 is fixed to the normal position by the lock mechanism 8.

According to the present embodiment described in detail above, the following effects can be obtained.
(1) When the seat cushion 2 is in the disembarkation position, the space under the feet of the occupant seated on the seat cushion 2 becomes large. It does not interfere with getting off the vehicle by coming into contact with parts around the space. Further, when the seat cushion 2 is in the disembarkation position, the seat cushion 2 is displaced downward and tilts forward as compared with the case where the seat cushion 2 is in the normal position, so that the feet of the occupant who is about to disembark can easily reach the road surface. Therefore, by moving the seat cushion 2 to the disembarkation position, it becomes easier for the occupant to disembark.

(2) When the occupant seated on the vehicle seat 1 operates the inside handle 9 with an operation amount of a predetermined amount X1 or more, the side door can be opened. Further, when the occupant operates the inside handle 9 with an operation amount of a predetermined amount X2 or more larger than the predetermined amount X1, the lock mechanism 8 releases the fixing of the seat cushion 2 at the normal position and disembarks from the seat cushion 2. It is possible to move it to a position. Since the operation of the inside handle 9 for getting off and the operation of the inside handle 9 for releasing the fixing by the lock mechanism 8 are related in this way, the seat cushion 2 in the normal position by the lock mechanism 8 is used. Due to the release of the fixing, it is possible to suppress the movement of the occupant when getting off the vehicle. As a result, the occupants can get off smoothly.

(3) The movement of the seat cushion 2 to the disembarkation position based on the weight of the occupant does not start only by releasing the fixing of the seat cushion 2 at the normal position by the lock mechanism 8. When the occupant moves the seat cushion 2 backward from the normal position (FIG. 1) beyond the turning point (FIG. 2) by kicking the floor in the vehicle 4 by himself / herself, the occupant gets off the seat cushion 2 based on the weight of the occupant. The movement to the position (Fig. 3) begins. Therefore, the occupant seated on the seat cushion 2 releases the fixing of the seat cushion 2 in the normal position by the lock mechanism 8 and then moves the seat cushion 2 to the disembarkation position by the weight of the occupant at his / her preferred timing. You can start.

The above embodiment can be changed as follows, for example.
-The turning point of the seat cushion 2 may be changed as appropriate. For example, the turning point may be changed to be closer to the normal position or the disembarkation position, or may be matched with the normal position.

-Although the inside handle 9 is exemplified as the operating member, a lever or pedal for the parking brake operated by the occupant at the time of getting off may be used as the operating member.
Further, the operating member does not necessarily have to be an inside handle 9 or the like operated by the occupant when getting off, and even if the operating member is independently provided for operating the lock mechanism 8 (pedal or the like). good.

If the inside handle 9 or the like operated by the occupant when getting off the vehicle is used as the operating member as in the above embodiment, the effect that the number of parts can be reduced can be obtained.

1 ... Vehicle seat, 2 ... Seat cushion, 3 ... Seat back, 4 ... Vehicle, 5 ... Movement mechanism, 6 ... Spring, 7 ... Spring, 8 ... Lock mechanism, 9 ... Inside handle, 10 ... Wire, 11 ... Bottom Frame, 12 ... upper frame, 13 ... upper frame, 14 ... front link, 15 ... rear link, 16 ... support shaft, 17 ... support shaft, 18 ... support shaft, 19 ... support shaft.

Claims (4)

A seat cushion on which the occupant sits, a moving mechanism that supports the vehicle so that the seat cushion can be displaced between the normal position and the disembarkation position, and the seat cushion are urged toward the normal position. In a vehicle seat with a spring,
When the seat cushion moves to the normal position, the seat cushion is fixed at the normal position, while the lock mechanism capable of releasing the fixing of the seat cushion at the normal position is provided.
The lock mechanism is an operating member configured to release the fixed state of the side door of the vehicle so that the side door of the vehicle can be opened through an operation with an operation amount equal to or more than the first predetermined amount. It is connected to the inside handle provided on the side door as an operating member operated by the occupant when getting off.
The lock mechanism operates so as to release the fixing of the seat cushion in the normal position based on the operation of the inside handle with an operation amount of a second predetermined amount or more larger than the first predetermined amount. can be,
The disembarkation position is a position where the seat cushion is tilted forward behind and below the vehicle from the normal position.
The movement mechanism moves the seat cushion from the normal position to the disembarkation position by a force based on the weight of an occupant seated on the seat cushion, while the movement from the disembarkation position to the normal position is performed by the seat cushion. A vehicle seat characterized in that it is performed by the urging force of the spring when the occupant is not seated. When the seat cushion is in the normal position, the moving mechanism exerts a force based on the weight of the occupant seated on the seat cushion on the seat cushion in a direction toward the normal position, while the seat cushion is in the normal position. The vehicle according to claim 1 , wherein when the vehicle is moved backward beyond the turning point from the position, a force based on the weight of the occupant seated on the seat cushion is applied to the seat cushion in the direction toward the disembarkation position. Sheet for. The moving mechanism includes a lower frame attached to the vehicle, an upper frame attached to the seat cushion, and front and rear links connecting the upper frame and the lower frame.
The front link is rotatably supported with respect to the lower frame by a support shaft having a lower end extending in the vehicle width direction, while being rotatably supported with respect to the upper frame by a support shaft having an upper end extending in the vehicle width direction. When the seat cushion is in the normal position, it is in an upright state.
The rear link is formed longer than the front link and is located behind the vehicle with respect to the front link, and is rotatably supported with respect to the lower frame by a support shaft whose lower end portion extends in the vehicle width direction. On the other hand, the upper end portion is rotatably supported with respect to the upper frame by a support shaft extending in the vehicle width direction, and the seat cushion is in a forward tilted state when it is in the normal position. The vehicle seat according to 2 . A seat cushion on which the occupant sits, a moving mechanism that supports the vehicle so that the seat cushion can be displaced between the normal position and the disembarkation position, and the seat cushion are urged toward the normal position. In a vehicle seat with a spring,
When the seat cushion moves to the normal position, the seat cushion is fixed at the normal position, while the lock mechanism capable of releasing the fixing of the seat cushion at the normal position is provided.
The disembarkation position is a position where the seat cushion is tilted forward behind and below the vehicle from the normal position.
The movement mechanism moves the seat cushion from the normal position to the disembarkation position by a force based on the weight of an occupant seated on the seat cushion, while the movement from the disembarkation position to the normal position is performed by the seat cushion. It is performed by the urging force of the spring when the occupant is not seated .
When the seat cushion is in the normal position, the moving mechanism exerts a force based on the weight of the occupant seated on the seat cushion on the seat cushion in a direction toward the normal position, while the seat cushion is in the normal position. In the state of moving backward beyond the turning point from the position, a force based on the weight of the occupant seated on the seat cushion is applied to the seat cushion in the direction toward the disembarkation position.
The moving mechanism includes a lower frame attached to the vehicle, an upper frame attached to the seat cushion, and front and rear links connecting the upper frame and the lower frame.
The front link is rotatably supported with respect to the lower frame by a support shaft having a lower end extending in the vehicle width direction, while being rotatably supported with respect to the upper frame by a support shaft having an upper end extending in the vehicle width direction. When the seat cushion is in the normal position, it is in an upright state.
The rear link is formed longer than the front link and is located behind the vehicle with respect to the front link, and is rotatably supported with respect to the lower frame by a support shaft whose lower end extends in the vehicle width direction. On the other hand, the upper end is rotatably supported with respect to the upper frame by a support shaft extending in the vehicle width direction, and the seat cushion is in a forward tilted state when it is in the normal position. A characteristic vehicle seat.

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