JPH0536738Y2 - - Google Patents

Description

[Detailed explanation of the idea] 《Industrial application field》 The present invention relates to a vehicle seat.

<<Prior Art>> In recent years, the side portions of vehicle seats have tended to protrude in a protruding shape as side support portions to provide enhanced lateral support for an occupant.

FIG. 4 shows an example of such a conventional vehicle seat.

In the figure, the vehicle seat 1 is roughly composed of a seat cushion 2 and a seat back 3 disposed at the rear of the seat cushion 2. As shown in FIG. Seat cushion 2 and seat back 3
Both have a frame (not shown), a pad surrounding the frame, and a skin surrounding the frame, and side support parts 6 and 7 projecting in a protruding shape are integrally formed on both sides of each main part 4 and 5, respectively. has been done.

The vehicle seat 1 has such a configuration, and the occupant has both sides of his or her upper body supported by both side support parts 7 of the seat bag 3 and both sides of the lower body of the occupant supported by both side support parts 6 of the seat cushion 2. This allows you to sit in a stable state with a so-called hold feeling.

<<Problems to be solved by the invention>> However, in the case of such conventional vehicle seats, especially the seat cushions, the side support portion on the door side provides a good seating condition for the occupant, but does not allow the occupant to sit comfortably. There is a problem that makes it difficult to get on and off the vehicle. For example, when riding in a car,
In general, occupants place one foot on the vehicle floor and leave the other foot outside the vehicle while bending their entire body into the vehicle interior, passing their buttocks through the door-side side portion of the seat cushion to reach the main section. Since the rider is seated in a seated position, and after seating, the other foot is placed on the floor of the vehicle body, if the side part protrudes like a protrusion like the side support part shown in the conventional example, the occupant will feel uncomfortable due to the protrusion. You have to lift your hips to avoid the side supports, which is a serious problem in a narrow vehicle interior. On the other hand, a similar problem occurs when getting out of a car.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vehicle seat that improves the ease of getting on and off the vehicle by maintaining the support properties of the side support portions provided in a protruding manner on the side portions of the seat cushion.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the vehicle seat according to the present invention has at least one side support part provided on both sides of the seat cushion so as to protrude upward. a movable mechanism that is fixed in the side support part on the side against the body pressure of the occupant when seated on the side support part in a normal state, and is displaced downward by a pressing force from above when getting on and off the vehicle in a direction different from the body pressure direction; the movable mechanism includes a plate that normally holds the lower surface of the side support part in a direction substantially perpendicular to the direction of body pressure when the occupant is seated; and a cushion frame whose base end is the seat cushion. a link that is rotatably coupled to the plate and is rotatably coupled to the plate in a state where the link is rotatably biased toward the door side so that the tip thereof faces the body pressure direction. shall be.

《Function》 The side support part on the door side of the seat cushion resists body pressure when the occupant is seated because the plate that receives the body pressure is normally supported by a link that opposes the body pressure. The plate that holds the lower surface of the side support is It is displaced downward by tilting the link inward of the seat cushion and pivoting downward about the connection point with the link. Furthermore, when this pressing force is released, the link returns to its original position together with the plate supported by the rotation biasing force in the door side direction, and the side support section is used to support the occupant's body when seated. Fix against pressure.

<<Example>> FIG. 1 shows an example of a vehicle seat according to the present invention.

In the figure, this vehicle seat 11 includes a seat cushion 12 and a seat back 3 similar to that shown in the conventional example, disposed behind the seat cushion 12.

As shown in FIG. 2, the seat cushion 12 includes a cushion frame 13 forming its outer shape, a cushion pad 14 arranged and fixed on the cushion frame 13, and a skin 15 surrounding the cushion pad 14.
A main part 16 that serves as a seat for the passenger; and side support parts 17 and 18 that are continuous with both sides of the main part 16 and protrude upward in a raised shape to support the passenger in the lateral direction. It is configured. In addition, these both side support parts 17,
Among the side support parts 18, one of the side support parts 18 located on the side of the vehicle body door (not shown) has a space part 20 in the lower part thereof so that its lower surface 19 forms a surface substantially perpendicular to the body pressure P1 direction when the occupant is seated. The side support portion 18 is formed in this space portion 20.
A movable mechanism 21 is provided for displacing the body downwardly by applying pressure from above in a direction different from the direction of the body pressure P1.

This movable mechanism 21 has its side support portion 1
8, and a pair of links 23 that are respectively attached to the front and rear ends of the door-side side frame 13a of the cushion frame 13 and pivotally support the plate 22. plate 22
has a shape that follows the lower surface of the side support part 18 on the door side, and the body pressure P1 direction of the occupant when seated is applied to the side support part 18 approximately in the center on its front and rear end surfaces, and the base end of the link 23 to be described later. A pivot pin 24 is protrudingly provided at a position on a straight line connecting the two sides, and is fixed to the lower surface 19 of the side support part 18. Each link 23 has its base end rotatably attached to the front and rear ends of the door-side side frame 13a and is biased toward the door side by a torsion coil spring 27, and its tip end is attached to the plate. A pivot hole 25 corresponding to the 22 pivot pins 24 is provided, and the pivot pin 24 of the plate 22 is inserted into the hole 25 and coupled to the plate 22 to pivot thereon. In addition, the same side frame 13
A stopper pin 26 that locks each link 23 from the outside is provided near each link 23 of a, and each link 23 is restricted from rotating in the door side direction from the above-mentioned state.

Therefore, the movable mechanism 21 maintains the side support portion 18 under the body pressure P when the occupant is seated, which is applied to the side support portion 18 in a normal state.
1, and is configured to be in a fixed state with respect to body pressure P1, and to be displaced downward in response to a pressing force from an upward direction different from the body pressure P1 direction. That is, the side support portion 18 is fixed against the body pressure P1 because the plate 22 that receives it in the normal state is supported by the link 23 facing the body pressure P1. As shown in P2 and P3, in response to a pressing force from an upper position directly above the side support portion 18 or shifted to the side of the seat cushion 12, this pressing force acts on the link 23 as a force from the lateral direction. The plate 22 that holds the side support part 18 is connected to the link 23.
By rotating the link 23 downward while tilting it inward to the seat cushion 12 with the connection point as the center of rotation, the link 23 is rotated downwardly within the space 20 at the bottom of the side support part 18 as shown in FIG. Displaced to a downward position. Furthermore, when this pressing force is released, the side support portion 18 returns to its original state shown in FIG. 2 due to the biasing force of the link 23 in the door side direction and the restraining chain between the link 23 and the plate 22. In order to smoothly rotate the plate 22, for example, a pin is provided at the inner end 22a of the plate 22, and a guide for receiving this pin is provided on the cushion frame 13 to guide the rotation of the plate 22. You can do it like this.

As described above, according to the vehicle seat 11 of the present invention, both sides of the upper body of the occupant are supported by both side support portions 7 of the seat back 3, as in the conventional case.
Both sides of the lower body are supported by both side support parts 17 and 18 of the seat cushion 12, allowing the person to sit in a stable state with a so-called hold feeling, and furthermore, the side support part 18 of the seat cushion 12 on the door side Because it is displaced downward by a pressing force from above, which is different from the direction of body pressure at the time, it can be dented by pressure from the occupant's hands or buttocks when getting into or out of the vehicle.
It becomes easy to get on and off from the seat 11, and the ease of getting on and off the seat is improved.

<<Effect of the invention>> As described above, according to the vehicle seat of the present invention, among the side support parts provided on both sides of the seat cushion so as to protrude upward, at least the side support part on the door side is connected to the side support parts. The provided movable mechanism is normally fixed against body pressure when the occupant is seated, and is displaced downward by a pressing force from above when getting on and off the vehicle, which is different from the body pressure direction. By recessing the protrusion of the door-side side support portion by pressing in a predetermined direction, such as by pressing with the occupant's hands or buttocks, it is possible to easily take and leave the seat. It can be easily done.

[Brief explanation of drawings]

FIG. 1 is a partially exploded perspective view showing an embodiment of a vehicle seat according to the present invention, FIG. 2 is a sectional view of the seat cushion of the same seat, and FIG. 3 is a side support of the seat cushion of the same seat. FIG. 4 is a cross-sectional view showing a state in which the portion is depressed by a pressing operation, and FIG. 4 is an external perspective view showing an example of a conventional vehicle seat. 12...Seat cushion, 13...Cushion frame, 17, 18...Side support part,
19...Bottom surface, 21...Movable mechanism, 22...Plate, 23...Link.

Claims (1)

[Scope of utility model registration request] Of the side support parts provided on both sides of the seat cushion so as to protrude upward, the side support part is fixed at least in the side support part on the door side against the body pressure of the occupant when seated, which is normally applied to the side support part. , a movable mechanism that is displaced downward by a pressing force from above when getting on and off, which is different from the body pressure direction, and the movable mechanism normally moves the lower surface of the side support part in the body pressure direction when the occupant is seated. a plate that is held in a direction substantially perpendicular to the seat cushion; and a link rotatably coupled to the plate in a state facing the plate.