JP2502407Y2 - Seat device for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a seat device mounted on a vehicle, and more particularly to a seat device provided with a lever on a side surface of a seat back.

(Prior Art) Conventionally, as a seat device provided with a lever on a side portion, for example, one disclosed in Japanese Utility Model Laid-Open No. 55-45885 is known.

In this conventional seat device, a lumbar support that can be moved forward and backward is built in a seat back of a vehicle seat, and a lumbar lever for moving the lumbar support forward and backward is projected on a side surface of the seat back and is rotatable. It was installed in.

(Problems to be Solved by the Invention) However, in the above-described conventional seat device, since the lumbar lever projects from the side surface of the seat back, a part of the occupant's body hits the lumbar lever during a vehicle collision or the like. Sometimes.

At this time, a part of the body hits the lumbar lever and the lever portion including the side portion of the seat back around the lumbar lever.

At this time, if the amount of deformation of the pad on the side of the seat back is large and the amount of depression is large, the impact force of this contact is supported only by the lumbar lever, and the impact received by a part of the body concentrates on this one place. Then, there arises a problem that the damage becomes large.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a seat device that can protect the occupant by eliminating the impact concentration by the lever.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in a vehicle seat device of the present invention, a pad provided on the inner side of a seat back skin and a skin are penetrated on a side surface of a seat back of a vehicle seat. A lever shaft is provided, and a lever for performing an operation of changing the state of the seat back with respect to a seated person is supported by the lever shaft so as to be rotatable around the lever shaft along the side of the seat back. An impact receiving member that is provided on the side surface and is capable of suppressing the inward deformation of the pad over the entire rotation range of the lever is provided inside the surface of the pad located around the lever shaft. The built-in means.

(Operation) When the head or arm of the occupant collides with the lever and the side surface of the seat back around the lever, the inward deformation of the pad, that is, the depression of the pad is suppressed by the impact receiving member on the side surface of the seat back.

Therefore, the impact of the collision is received not only by the lever but also by the impact receiving member around the lever, and the impact is dispersed.

Therefore, the impact concentration on the lever is mitigated, and the damage is mitigated.

Further, at this time, since the impact receiving member is built in the pad of the seat back, the impact is cushioned.

Further, since the impact receiving member is provided in the range extending over the rotation range of the lever, the impact dispersion action described above is obtained regardless of the rotation position of the lever and the contact from any direction. Can be obtained.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

First, the structure of the vehicle seat device of the first embodiment of the present invention shown in FIGS. 1 to 3 will be described.

FIG. 3 is a perspective view showing a vehicle seat device 1 according to a first embodiment of the present invention. In the vehicle seat device 1, a seat back 3 is provided upright on a rear portion of a seat cushion 2.

The seat back 3 includes a seat back frame 31 and a back support spring 30 horizontally mounted on the seat back frame 31. A lumbar support 4 as a lumbar support member is built in the seat back 3, and a lumbar lever 5 for moving the lumbar support 4 back and forth is provided on one side surface of the seat back 3 in a protruding manner.

FIG. 1 is a sectional view of a main part of the vehicle seat device 1.
As shown in the drawing, the front surface and the left and right side surfaces of the seat back frame 31 are surrounded by the pads 32, and the entire surface is covered with the outer skin 33. The lever shaft 50 of the lumbar lever 5 is provided so as to pass through the pad 32 and the outer skin 33 as shown in the figure while being supported by the side bracket 34 fixed to the seat back frame 31.

Next, FIG. 2 is a side view showing the periphery of the lumbar lever 5, and the impact receiving member is provided over the entire range from the position indicated by the solid line to the position indicated by the imaginary line, which is the rotatable range of the lumbar lever 5. Is provided in a loop shape.

The support wire 6 is built in the pad 32 near the lumbar lever 5, and both ends thereof are fixed to the side bracket 34.

The support wire 6 has appropriate elasticity and is arranged at a predetermined distance from the seat side end surface of the lumbar lever 5.

 Next, the operation of the embodiment will be described.

In the vehicle seat device 1 of the first embodiment, the lumbar support 4 is moved back and forth by rotating the lumbar lever 5, and the lumbar spine is applied at a desired position to make the posture easier.

When the car collides with the lumbar lever 5,
When a part of the body hits the side surface portion of the seat back 3 around the lumbar lever 5, the support wire 6 in the present embodiment reduces the amount of depression of the pad 32 in this portion.

Therefore, when a part of the body hits the lever portion, it hits over the lumbar lever 5 and the support wire 6, so that the impact is dispersed and the occupant can be protected.

As described above, in the present embodiment, the dispersion of the impact causes
Since the impact concentration by the lumbar lever 5 is mitigated, damage is mitigated. Since the support wire 6 is built in the pad 32 of the seat back 3, the contact with the support wire 6 is also reduced.

In addition, since the support wire 6 is provided over the entire range in which the lumbar lever 5 can rotate, no matter which rotation position the lumbar lever 5 is in, or from which direction the lumbar lever 5 hits, It is possible to obtain the impact dispersion action described above.

Next, the vehicle seat device of the second embodiment shown in FIG. 4 will be described.

The second embodiment differs from the first embodiment in the specific configuration in that a resin plate 7 having an appropriate elasticity is used as an impact receiving member.

That is, the resin plate 7 is integrally embedded when the pad 32 is molded.

Therefore, even in the second embodiment, since the deformation of the pad 32 is suppressed around the lumbar lever 5 at the time of a collision, the impact is exerted not only on the lumbar lever 5 but also on the seat back 3
It is also received by the side and the impact is dispersed, which can protect the occupant.

The rest of the configuration and operation are the same as in the first embodiment.

The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration of the present invention is not limited to the above embodiments.For example, a lever on a side portion of a seat back, or a lumbar support in the embodiments is used. Although the lumbar lever to be operated is shown, another lever such as a lever for changing the tilt angle of the seat back may be used.

(Effect of the Invention) As described above, in the vehicle seat device of the present invention, since the shock receiving member that suppresses the deformation of the pad is built into the pad over the entire pivoting range of the lever, Since the impact on the lever portion is dispersed from any direction by the impact receiving member, it is possible to prevent the concentration of impact by the lever, reduce damage, and thus protect the occupant.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a vehicle seat device according to a first embodiment of the present invention, and FIG. 2 is a side view of the main part of the first embodiment device.
FIG. 4 is an overall perspective view of the device of the first embodiment, and FIG.
It is a principal part sectional view which shows the vehicle seat device of an Example. 1 …… Vehicle seat device 3 …… Seat back 32 …… Pad 5 …… Lumber lever (lever) 6 …… Support wire (impact receiving member) 7 …… Resin plate (impact receiving member)

Claims (1)

(57) [Scope of utility model registration request] 1. A pad provided inside a seat back skin and a lever shaft penetrating the skin are provided on a side surface of a seat back of a vehicle seat, and an operation for changing a state of the seat back for a seated person is performed. A lever is supported by the lever shaft so as to be rotatable around the lever shaft along the side surface of the seat back, and is protruded from a side surface of the seat back. The lever is located inside the surface of the pad located around the lever shaft. In the vehicle seat device, an impact receiving member capable of suppressing the inward deformation of the pad is built in over the entire rotation range of the lever.