JPH10262774A - Cushion mechanism of automobile seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel cushion mechanism of automobile seat in which the mounting work can be facilitated without loosing the cushion mechanism. SOLUTION: In this cushion mechanism of automobile seat, an elastic plate 2 consisting of a glass fiber-reinforced thermoplastic resin on the surface of which bead parts 6, 7 for allowing the radial expanding and contracting deformation from the center part so as to support the hip are integrally formed is molded, one end part of the elastic plate 2 is turned up and engaged with one support frame e1 in such a manner as to be rockable, and a plurality of elliptic holes 3 orthogonal to the longitudinal direction of the other support frame e2 are formed on the other end part to mount the other end part on the support frame e2 through locking members 5 such as small screws to the elliptic holes 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a bus, a truck,
The present invention relates to a cushion mechanism provided in a seat for an automobile such as a passenger car.

[0002]

2. Description of the Related Art In general, as shown in FIG. 5, a seat for an automobile such as a bus, a truck, a passenger car and the like is composed of a back seat portion b for supporting a lumbar spine of an occupant a and a urethane foam seat for directly supporting a buttocks. Part c and these components b, c
And a seat frame d for transmitting the load of the occupant a to the vehicle structure side.

[0003] Among them, a cushion mechanism i for minimizing occupant fatigue by absorbing vibration from the road surface together with urethane foam and the like is provided at the bottom of the seat c.

As shown in FIG. 6, for example, a cushion f made of a thick cloth is stretched between support frames e and e of a rectangular seat frame d, and the cushion mechanism i is provided on the canvas f. Embedded pair of rods g,
g is hooked on one (vehicle front side) support frame e constituting a seat frame d by a plurality of hooks h, and the other rod g is supported by a plurality of coil springs j on the other (vehicle rear side) support frame e. It is hooked on the side.

As shown in FIG. 7, when a load (buttock) of an occupant is applied to the canvas f, the coil spring j expands and the canvas f flexes downward, thereby absorbing vibration from the road surface. It has the effect of eliminating the feeling of bottom when seated and improving the hold feeling.

[0006]

By the way, in the conventional cushion mechanism i having such a structure, the canvas f
Since many parts such as the rod g, the hook h, and the coil spring j are required, there is an inconvenience that the assembling operation requires much time.

In order to assemble the cushion mechanism i to the seat frame d, first, a hook h is attached to the canvas f, and the hook h is hooked on one (front of the vehicle) of the support frame e. As shown in the figure, the other (rear side of the vehicle) is pulled while manually pulling this coil spring j.
Has been disadvantageous in that the number of working steps is increased and a strong force is required to pull the coil spring j.

For this reason, there is an example in which a wooden plywood is used as a substitute for such conventional parts. However, the wooden plywood itself has poor cushioning properties, and a conventional seating feeling can be obtained only by adjusting the hardness of the seat portion c. It is impossible.

Therefore, the present invention has been devised in order to effectively solve such a problem, and a purpose thereof is to provide a novel automobile capable of facilitating the mounting work without damaging the cushion mechanism. It is intended to provide a cushion mechanism for a seat for use.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a vehicle seat cushion which is bridged between supporting frames facing each other at a predetermined interval, and whose buttocks are supported on the surface thereof. In the mechanism, an elastic plate made of a glass fiber reinforced thermoplastic resin integrally formed with a bead portion for allowing the buttocks to be supported on the surface thereof and allowing expansion and contraction in the radial direction from the center thereof, One end of the elastic plate is folded back and swingably engaged with the one support frame, and a plurality of long holes perpendicular to the longitudinal direction of the other support frame are formed at the other end, and screws are formed in these long holes. It is slidably attached to the support frame via a locking member such as.

With this configuration, one end of the elastic plate swings about one support frame and the other end slides on the other support pipe. When a load (buttock) is applied, the elastic plate bends downward while being supported between the support frames, so that a good sitting feeling can be obtained as in the related art. Further, since this cushion mechanism is constituted by one elastic plate, the number of parts is reduced, and the assembling work is also facilitated.

The above effect can be more remarkably obtained by forming a beat portion on the surface of the elastic plate for allowing deformation.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show an embodiment of a cushion mechanism 1 according to the present invention.
Reference numeral 2 denotes a support frame that forms a part of the seat frame d as described above.

As shown in the figure, the cushion mechanism 1 according to the present invention mainly comprises the support frames e which face in parallel with each other.
It consists of a rectangular elastic plate 2 spanned between 1 and e2.

The elastic plate 2 is made of a material having an elastic function, such as a glass fiber reinforced thermoplastic resin, and has a strength and a plate thickness capable of supporting it while easily bending without being cracked even when a load of an occupant is applied. Is formed.

The distal end of the elastic plate 2 is formed with an engaging portion 2a which is folded upside down in a U-shape. As shown in the figure, the engaging portion 2a has a pipe-like shape located on the front side of the vehicle. By engaging with the support frame e1, the elastic plate 2 can swing about the support frame e1 as an axis.

On the other hand, a rear end portion of the elastic plate 2 extends so as to be mounted on the support frame e2 side on the rear side of the vehicle, and has a long hole extending at an edge thereof so as to be orthogonal to the support frame e2. 3 (four in this embodiment) are formed. As shown in FIG. 4, the rear end portion of the elastic plate 2 is locked to the support frame e2 on the rear side of the vehicle by a locking member 5 such as a screw through the elongated hole 3, thereby providing elasticity. The rear end of the plate 2 is slidably attached to the support frame e2 on the vehicle rear side.

On the surface of the elastic plate 2, linear beads 6, 6 extending parallel to the support frames e1, e2 are provided.
In addition, annular beads 7, 7 concentrically arranged at the center are formed in a groove shape, and the interval between the beads 6, 7 is freely changed, thereby improving the elastic force of the elastic plate 2, and The stress applied at the time of deformation is allowed.

As shown in FIG. 2, the height of the support frame e1 located at the front of the vehicle is higher than the height of the support frame e2 located at the rear of the vehicle. Support frames e1 and e2 in the inclined state
It can be attached to.

First, when the buttock a of the occupant rides on the center of the elastic plate 2 from the state shown in FIG.
As shown in FIG. 4B, the elastic plate 2 is bent so as to be curved downward by the load. At this time, the distal end portion of the elastic plate 2, that is, the engaging portion 2a having a U-shaped cross section is inverted.
Is engaged with the support frame e1, the elastic plate 2
Of the elastic plate 2 is held down by the support frame e1 and does not come off the support frame e1. On the other hand, as described above, the rear side of the elastic plate 2 is slidably engaged with the support frame e2 through the elongated hole 3 extending perpendicular to the support frame e2, as shown in FIG. Similarly, the state of being supported by the support frame e2 on the rear side of the elastic plate 2 is also maintained and does not come off from the support frame e2.

Therefore, a good seating feeling can be obtained as in the conventional cushion mechanism, and the number of parts can be greatly reduced. In addition, since one elastic plate is placed on the seat frame and its end is locked by the locking member 5 such as a screw, the assembling workability can be greatly simplified.

Although the present embodiment has been described with an example of a beat shape, the present invention is, of course, not limited to this, and may be formed in a lattice shape, for example.

[0024]

In summary, according to the present invention, a good seating sensation can be obtained as in the conventional cushion mechanism, and the number of parts is reduced, so that cost reduction can be achieved. In addition, since the assembling workability can be greatly simplified, excellent effects such as shortening of assembling time and greatly reducing labor can be exhibited.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing one embodiment of the present invention.

FIG. 3 is a partially enlarged cross-sectional view showing a portion A in FIG. 2 and its operation.

FIG. 4 is an explanatory diagram showing the operation of the present invention.

FIG. 5 is a schematic view showing an example of a conventional automobile seat.

FIG. 6 is a partially broken perspective view showing an example of a conventional cushion mechanism for an automobile seat.

FIG. 7 is an explanatory view showing the operation of a conventional automobile seat cushion mechanism.

FIG. 8 is an explanatory view showing a mounting state of a conventional cushion mechanism for an automobile seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cushion mechanism 2a Engagement part 2 Elastic plate 3 Long hole 5 Screw 6 Straight beat 7 Annular beat e Support frame

Claims (2)

[Claims] 1. A cushion mechanism for an automobile seat which is bridged between supporting frames facing each other at a predetermined interval and has a buttocks supported on a surface thereof, wherein the buttocks are supported on the surface and from the center thereof. An elastic plate made of a glass fiber reinforced thermoplastic resin integrally formed with a bead portion for allowing expansion and contraction in the radial direction is molded, and one end of the elastic plate is folded back and rocked on the one support frame. In addition to being freely engaged, a plurality of long holes perpendicular to the longitudinal direction of the other support frame were formed at the other end, and slidably attached to the support frame through these long holes via locking members such as screws. A cushion mechanism for an automobile seat characterized by the following. 2. The method according to claim 1, wherein the bead portion comprises a plurality of annular beads arranged concentrically at a central portion of the elastic plate, and a plurality of linear straight beads arranged outside and parallel to the annular bead. The cushion mechanism for an automobile seat according to claim 1, wherein