JPH11342038A - Seat having seat surface by planar elastic body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a planar elastic body easily stretchably within the frame of a seat frame by setting the planar elastic body at suitable tension and maintaining the specified tension free of variation. SOLUTION: A supporting frame plate 5 for holding the planar elastic body 2 at its circumferential edge is resin molded integrally with the planar elastic body 2 and the outer periphery of the supporting frame plate 5 is provided with detaining projections 6 of an approximately arrowhead shape in cross section at each of plural specified intervals. The seat frame 1 is provided with engaging holes 1a for these detaining projections in its axial direction at each of the plural specified intervals. The supporting plate 5 is applied and fixed to the front surface side of the seat frame 1 by fitting the respective detaining projections 6 into the engaging holes 1a of the seat frame 1. As a result, the planar elastic body 2 is stretched and mounted within the frame of the seat frame 1 by means of the supporting frame plate 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat having a seating surface made of a sheet-like elastic member which forms a seating portion from a sheet-like elastic member having elasticity and air permeability.

[0002]

2. Description of the Related Art Seats in which a seat portion is formed from a stretchable and breathable planar elastic body have already been proposed (USP).
5,013,089, 5,533,789, Tokiohei Hei 8
507935).

[0003] In this seat, air permeability can be imparted to the seat surface portion by a sheet-like elastic body, and the design is changed from a normal seat. Further, it is preferable that a pad member and a spring member, etc., necessary for forming a normal seating surface portion are omitted, and furthermore, the weight can be reduced and the space elastic body is thin, so that space efficiency is good.

[0004] In the seat proposed earlier, in order to stretch and fix the sheet elastic body in the frame of the seat frame, a resin plate is provided on the peripheral edge of the sheet elastic body and the resin plate is provided on the axis of the seat frame. The peripheral edge of the sheet elastic body is directly wound around the axis of the seat frame and screwed together with the holding plate.

[0005] However, the resin plate is fitted into the groove provided on the axis of the seat frame to fix the terminal of the sheet elastic body, and the peripheral edge of the sheet elastic is directly on the axis of the seat frame. By winding and screwing together with the holding plate, it is difficult to set the planar elastic body to an appropriate tension and to stretch and fix the elastic body within the frame of the seat frame while maintaining a constant tension without variation. In addition, this seat lacks holdability at the time of seating because it is difficult to assemble a large raised bank portion.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a sheet-like elastic body can be set to an appropriate tension, and a sheet-like elastic body can be easily stretched in a frame of a seat frame while maintaining a constant tension without variation. It is an object to provide a seat having a seat portion made of an elastic body.

Further, the present invention provides a seat having a seat made of a sheet elastic body which can easily assemble a bank portion which is larger than a seat part made of the sheet elastic body with a simple structure and which can improve holdability when seated. The purpose is to provide.

[0008]

According to a first aspect of the present invention, there is provided a seat having a seat made of a sheet-like elastic body according to the first aspect of the present invention. A support plate that includes a planar elastic body, a bank pad assembled on the axis of the seat frame, and a trim cover that covers the bank pad, holds a supporting frame plate that holds the planar elastic body at a peripheral edge. In addition to resin molding integrally with the elastic body, hooking projections having a substantially arrowhead cross section are provided on the outer periphery of the support plate at a plurality of regular intervals, and engaging holes for the hooking projections are formed in the axial direction of the seat frame. Are provided at a plurality of regular intervals, the respective latching projections are fitted into the engagement holes of the seat frame, and the planar elastic body is stretched and installed in the frame of the seat frame with the support frame plate.

In the seat having a seat made of a sheet-like elastic body according to the second aspect of the present invention, a film hinge is provided on the protruding end side of the latching projection, and the latching projection is formed so as to be splittable into two. The holding plate opposite to the support plate is continuously molded from one side of the stop projection with resin.
One end of the trim cover is sandwiched between the latching projections from between the support plate and the holding plate, and each latching projection is fitted into the engagement hole of the seat frame, and the sheet elastic body is seated on the support frame plate. Stretching equipment inside the frame of the frame, and further fixing one end of the trim cover to the seat frame with a latching projection and covering the bank pad assembled on the axis of the seat frame with the trim cover. It consists of.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying drawings, the illustrated embodiment is applied to assemble a seat back B and a seat cushion C in a vehicle seat as shown in FIG. Each part B, C of the vehicle seat is a seat frame 1, 10 having a substantially quadrangular frame shape.
Sheet elastic bodies 2 and 11 stretched in the frames of the seat frames 1 and 10, bank pads 3 and 12 assembled on the axis of the seat frames 1 and 10, and bank pads 3 and 12 And the trim covers 4 and 13 enclosing the cover.

The specific structure will be described with reference to a seat back B. As shown in FIG. 2, the seat back frame 1 is assembled into a substantially quadrangular frame shape using a metal frame having a U-shaped cross section. ing. The seat back frame 1 is axially bent so that each side conforms to the sitting posture of the occupant, and a plurality of engaging holes 1a, 1b... It is provided for each interval.

As the planar elastic body 2, a cloth having elasticity and air permeability is used. For example, the elastic monofilament formed of a plurality of elastomer monofilaments interwoven with a plurality of strands of fibrous yarn used for the interior woven fabric, or the elastic monofilament of 1000 to 4000 deniers is woven or knitted with a warp or a weft to provide elasticity and ventilation. A woven or knitted fabric having properties can be used.

The frame plate 5 is formed of synthetic resin such as polypropylene by integral molding with the peripheral edge of the planar elastic body 2 by insert molding the peripheral edge into the wall thickness. The support frame plate 5 stretches and retains the planar elastic body 2 from the circumference thereof, and can be formed in a substantially quadrangular frame shape that can be applied to the front side of the seat back frame 1. As shown in FIG. 3, a plurality of latching projections 6 having a substantially arrowhead cross section are provided on the outer periphery of the support plate 5 at regular intervals so as to correspond to the engagement holes 1a, 1b. ing.

The supporting plate 6 including the latching projections 6 is provided.
Can be formed so that the trim cover 4 that covers the bank pad 3 can also be used as a terminal fastening. In order to use the trim cover 4 as a terminal fastening, a film hinge 60 is provided on the protruding end side of the latching projection 6 so that the entire
2 can be divided into two parts, and the supporting plate 5 and the pressing plate 7 facing the supporting frame plate 5 can be integrally molded with resin from one side 62 thereof. The holding plate 7 is formed separately from each side of the support frame plate 5 via the film hinge 60 of each latching projection 6 to be provided individually for each side.

The bank pad 3 is made of a cushion foam body such as urethane foam, and is formed into a predetermined three-dimensional shape by providing concave portions to be fitted and fixed to the front, side and back from the outside of the seat back frame 1. The bank pad 3 may be formed individually for each side of the seat back frame 1, or may be formed as a continuous unit as a whole according to the frame shape of the seat back frame 1.
The front side of the bank pad 3 is largely raised so as to assemble a bank part having good holding properties, and particularly, the upper side can be formed to be greatly raised as a headrest part.

As the trim cover 4, any general-purpose genuine leather, synthetic leather, fabric, or the like can be used.
The skin material 4 can be sewn into an integral and continuous body so as to wrap the bank pad 3 attached to each side of the seatback frame 1 from the outside in a substantially C-shaped cross section with the inside opened. . The trim cover 4 can be provided with a beaded edging cord 8 along a terminal that is pinched and fastened by the hooking projection 6.

In order to assemble the seat back B from the above-described members, as shown in FIG. 3, the support frame plate 5 and the holding plate 7 are opened by the film hinges 60 of the latching projections 6 (61, 62) to open the seat back. One end of the trim cover 4 fixed to the front side of the frame 1 is sandwiched between the latching projections 6 (61, 62) from between the support frame plate 5 and the holding plate 7. In the sandwiching by the hooking projections 6 (61, 62), if the bead-shaped edging cord 8 is provided, the trim cover 4 can be securely held so as not to come off from the terminal and to be loosened.

Next, as shown in FIG. 4, the respective latching projections 6 are fitted into the engaging holes 1a, 1b... Of the seat back frame 1, and the support frame plate 5 and the holding plate 7 are moved to the front side of the seat back frame 1. And fix it. Thus, the support plate 5 is resin-molded so that the peripheral edge of the planar elastic body 2 is taken into the thickness and supported with a predetermined tension from around the periphery. The seat back frame 1 can be stretched with appropriate tension inside the frame of the seat back frame 1 while maintaining a constant tension. At the same time, one end of the trim cover 4 can also be fixedly fixed to the seat back frame 1.

After the sheet elastic body 2 and one end of the skin material 4 are attached to the seat back frame 1, the bank pad 3 is attached to each side of the seat back frame 1, and the trim cover 4 is attached to the front surface of the seat back frame 1. And wrap the bank pad 3 by wrapping around the back side from the side. As a result of the mounting of the bank pad 3, the support frame plate 5 and the holding plate 7 overlap and bend at right angles from the fitting positions of the engaging projections 6 into the engagement holes 1a, 1b. Assigned fixed. The supporting frame plate 5 and the holding plate 7 can also be formed by bending in a direction perpendicular to the position where the engaging projections 6 are fitted into the engaging holes 1a, 1b.

The trim cover 4 is provided with a hard resin hook 9 sewn along the terminal on the winding side.
Is hooked from the back side of the seat back frame 1 to the inside of the flange portion so that the terminal can be fixed.
This makes it possible to assemble the seat back B having the bank portion greatly protruding from the bank pad 3 with a simple structure and robustness. In addition, it is easy to remove the planar elastic body 2 from the seat back frame 1 from the necessity of recycling or the like by removing the trim cover 4 by the hook 9 from the support frame plate 5 and the holding projection 6 of the holding plate 7. .

Although the above-described embodiment has been described based on the seat back B, the construction of the seat cushion C can be similarly applied.

The seat cushion C is mounted on bracket plates 15a, 15b slidably supported by slide rails 14a, 14b as shown in FIG. 1, and the bracket plates 15a, 15b are attached to the exterior covers 16a, 16b. , The front and rear positions can be adjusted in the same manner as a normal seat. The entire seat can be configured as a reclining seat by providing the reclining mechanism 17 on one of the bracket plates 15b.

[0023]

As described above, according to the seat having the seat made of the sheet-like elastic body according to the first aspect of the present invention, the supporting frame plate which holds the sheet-like elastic body at the peripheral edge is formed by the sheet-like elastic body. And a plurality of engaging projections having a substantially arrowhead-shaped cross section are provided on the outer periphery of the support frame plate at regular intervals, and a plurality of engaging holes for the engaging projections are defined in the axial direction of the seat frame. Provided at each interval, each latching projection is fitted into the engagement hole of the seat frame, and the planar elastic body is stretched and installed in the frame of the seat frame with the support frame plate. The seat frame can be stretched with an appropriate tension inside the frame of the seat frame while maintaining a constant tension, and can be easily assembled as a seat surface portion based on the seat frame. In addition, it is possible to easily remove the planar elastic body from the seat frame due to the need for recycling or the like.

According to the seat having the seating surface of the planar elastic body according to the second aspect of the present invention, one end of the trim cover is sandwiched between the retaining projection from between the supporting plate and the holding plate, and Each of the latching projections is fitted into the engagement hole of the seat frame, and the sheet elastic is stretched and installed in the frame of the seat frame with the support plate, and one end of the trim cover is further latched with the latching projection. The trim pad covers the bank pad that is fixed to the seat frame and is assembled on the axis of the seat frame. Therefore, the seat surface can be formed of a sheet-like elastic body based on the seat frame, and greatly protrudes from the bank pad. A simple structure having a bank can be easily assembled into a robust one.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a seat having a seat made of a planar elastic body according to the present invention.

FIG. 2 is a perspective view showing a seat frame constituting the seat.

FIG. 3 is a partially enlarged cross-sectional view showing a relationship among a planar elastic body, a trim cover, a support plate, a holding plate, and a latching projection which constitute the sheet.

FIG. 4 is an enlarged cross-sectional view showing the same sheet taken along a line AA in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat frame 1a, 1b ... Engagement hole 2 Plane elastic body 3 Bank pad 4 Trim cover 5 Support frame plate 6 Hook protrusion 7 Holding plate

Claims (2)

[Claims] 1. A seat frame having a substantially quadrangular frame shape, a sheet-like elastic body stretched inside the frame of the seat frame, a bank pad mounted on an axis of the seat frame, and the bank pad. And a trim cover for enclosing the frame elastic body. The supporting frame plate holding the planar elastic body at the peripheral edge is resin-molded integrally with the planar elastic body, and a substantially arrowhead-shaped cross section of the supporting projection is formed on the outer periphery of the supporting frame plate. Are provided at regular intervals, and engaging holes for the retaining projections are provided at regular intervals in the axial direction of the seat frame. A seat having a seating surface made of a sheet-like elastic body, wherein the elastic body is stretched and installed in a frame of a seat frame by a support frame plate. 2. A film hinge is provided on a protruding end side of a latching projection to form a latching projection that can be divided into two, and a holding plate facing a supporting frame plate is integrally formed continuously from one side of the latching projection. Resin molding, one end of the trim cover is sandwiched between the latching projections from between the support frame plate and the holding plate, and each latching projection is fitted into the engagement hole of the seat frame to support the sheet elastic body. The trim plate is mounted on the seat frame with a frame plate, and one end of the trim cover is fixedly fixed to the seat frame with a latching projection, and the bank pad assembled on the seat frame axis is fixed with the trim cover. The seat having a seat made of a sheet-like elastic body according to claim 1, which is covered.