JP4009702B2 - Seat having a seating surface by a planar elastic body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet having a seating surface by a planar elastic body that forms a seating surface from a stretchable planar elastic body.
[0002]
[Prior art]
A sheet that forms a seating surface from a stretchable planar elastic body has already been known (USP 5,013,089, 5,533,789, JP-A-8-507935). This type of seat changes in design, and cushion pads, seat springs, etc. can be omitted, air permeability can be imparted and weight reduction can be achieved, and space efficiency is good since the planar elastic body is thin.
[0003]
In the seat that forms the seating surface from the planar elastic body, a resin frame is provided at the end of the planar elastic body when the planar elastic body is assembled and stretched, and the resin frame is placed on the axis of the seat frame. Fit into the recessed groove provided and fix. Further, the end of the planar elastic body is turned on the axis of the seat frame and fixed with screws with the presser plate.
[0004]
In the above-mentioned seat, since the end of the planar elastic body is directly fixed to the seat frame, the tension of the planar elastic body cannot be adjusted, and when changing the tension, it must be of another size . In addition, since the seat has almost no bank portion, it does not have holdability when seated.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a seat having a seating surface by a planar elastic body that can easily adjust the tension of the planar elastic body when the planar elastic body is assembled and stretched.
[0006]
In addition, an object of the present invention is to provide a seat having a seating surface by a planar elastic body that can easily hold and assemble the planar elastic body while maintaining holdability at the time of sitting.
[0007]
[Means for Solving the Problems]
In the seat having a seating surface by the planar elastic body according to the present invention, the seating surface is provided with a stretchable planar elastic body, and the terminal of the planar elastic body is connected to the seat frame.
A support plate having an L-shaped cross section, connecting the end of the planar elastic body to one side of the support plate, and arranging one side of the support plate along the seat surface above the seat frame; The other side of the support plate is fastened and fixed to the seat frame with a screw fastener so that the planar elastic body is pulled on the other side of the support plate.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the accompanying drawings, the illustrated embodiment is applied to forming seat cushions C and seat backs B with a sheet-like elastic body 1 in a vehicle seat as shown in FIG. .
[0009]
The planar elastic body 1 is made of a stretchable fabric, and for example, one formed by a plurality of elastomer monofilaments interwoven with a plurality of strands made of fibrous yarns used for an interior fabric can be used. Further, it is possible to use a woven or knitted fabric imparted with main stretchability by using 1000 to 4000 denier elastomer monofilament as warp or weft.
[0010]
In order to assemble and stretch the planar elastic body 1, the end of the planar elastic body 1 is attached to a seat frame 2 (hereinafter referred to as “pipe frame”) made of a metal pipe member. . Further, the end of the planar elastic body 1 is connected to the support plate 3 and attached to the pipe frame 2. Further, the support plate 3 is fastened and fixed to the pipe frame 2 with screw fasteners 4a and 4b.
[0011]
As the support plate 3, a chevron member having an L-shaped cross section formed of a metal material such as steel or stainless steel is used. The support plate 3 has one side 3a facing the seat surface above the pipe frame 2 and facing outward, and the other side so as to pull the planar elastic body 1 using bolts 4a and nuts 4b as screw fasteners. Since 3b is fastened and fixed to the pipe frame 2, it is attached to the pipe frame 2.
[0012]
As shown in FIG. 2, the sheet elastic body 1 has a trim cord 5 formed of a synthetic resin such as polypropylene sewn to the end of the sheet elastic body 1 and the trim cord 5 faces outward. The terminal can be connected by being hooked on one side 3a. The trim cord 5 may have a fishhook-like cross-sectional shape. In the trim cord 5, the protrusion 5 a provided on the inner end side is locked to one side 3 a of the support plate 3, so that the trim cord 5 is firmly hooked to the support plate 3 so as to withstand the tension applied to the planar elastic body 1. Can do.
[0013]
Instead, the surface elastic body 1 is sewn with a strong cloth material 6 such as tricot at the end as shown in FIG. 3, and this cloth material 6 is supported by a stopper 7 such as a pop rivet, a bolt or a nut. The terminal can be connected to the support plate 3 by being fixed to one side 3 a of the plate 3. When the stopper 7 is used, a washer 8 made of a hot rolled material is preferably interposed on the axis. Further, if the wire 9 is wound inside the cloth material 6 and disposed outside the attachment position of the stopper 7, it is possible to prevent the displacement due to the tension applied to the planar elastic body 1.
[0014]
In the case shown in FIGS. 2 and 3, the support plate 3 is fastened with bolts 4a and nuts 4b by applying one side 3a of the support plate 3 to the outside of the seat and the other side 3b on the inner side of the pipe frame 2. . In this case, the nut 4 b is welded and fixed to the inner side of the pipe frame 2.
[0015]
In addition to the embodiment described above, bolts 4a and nuts 4b can be obtained by applying one side 3a of the support plate 3 to the inside of the seat and the other side 3b to the outer surface of the pipe frame 2 as shown in FIG. It can also be fixed by tightening. In this case, the screw shaft portion of the bolt 4a may be passed through the other side 3b of the support plate 3 from the axis of the pipe frame 2 with the nut 4b facing the outside of the seat.
[0016]
Further, as shown in FIG. 3, the planar elastic body 1 may be connected to the cloth material 6 at the end and connected to one side 3 a of the support plate 3 with a stopper 7 such as a pop rivet. In addition, the bolt 4 a can be welded and fixed to the inner surface of the pipe frame 2.
[0017]
In the seat configured as described above, one side 3 a of the support plate 3 to which the end of the planar elastic body 1 is connected is disposed along the seating surface above the pipe frame 2, and the planar elastic body 1 is disposed on the support plate 3. By tightening the other side 3b of the support plate 3 to the pipe frame 2 with bolts 4a and nuts 4b so as to be pulled by the other side 3b, the tension of the planar elastic body 1 is adjusted by the screwing degree of the screw fasteners 4a and 4b. it can.
[0018]
In addition, the spacer 10 is interposed between the support plate 3 and the nut 4b as shown in FIGS. 2 and 3, and the other side 3b of the support plate 3 and the off-axis of the pipe frame 2 as shown in FIG. By interposing it between the side surfaces, the tension of the planar elastic body 1 can be adjusted.
[0019]
The planar elastic body 1 connects the terminal to the one side 3 a of the support plate 3 in advance, so that the terminal can be easily connected to the support plate 3. Further, when the support plate 3 is tightened, the bolt 4a is screwed toward the plate surface of the other side 3b bent at a right angle from the one side 3a of the support plate 3 to which the end of the planar elastic body 1 is connected. Since the treatment can be performed, the bolt 4a can be easily screwed and fixed without being disturbed by other components.
[0020]
In the sheet, the bank portion 11 that protrudes larger than the seat surface by the planar elastic body 1 can be assembled. The bank portion 11 is provided with a skin material 11a continuous with the surface elastic body 1 by sewing the end of the skin material 11a to the critical line of the seat surface by the surface elastic body 1, and a soft foam or cotton-like material is provided on the bank. An angle member 11c having an L-shaped cross section is welded and fixed to the outer surface of the pipe frame 2 as a receiving member for the bank pad 11b, and the bank pad 11b is assembled to the angle member 11c to cover the bank pad 11b. It can be assembled by encapsulating with the material 11a.
[0021]
The skin material 11 a of the bank portion 11 is sewn to a terminal with a hook-shaped trim cord 12 formed of a synthetic resin such as polypropylene, and the trim cord 12 is attached to a pipe frame 2 or a wire frame 13 attached to the support plate 3. The terminal can be attached by hanging. Including the trim cord 13, the support plate 3, the trim cord 5, the washer 8, and the wire 9 include one continuous piece on one side of the planar elastic body 1, or a plurality of divided moldings are provided at regular intervals. You can also
[0022]
Although the above-described embodiment has been described based on a vehicle seat, it can be similarly applied to a seat for general furniture.
[0023]
【The invention's effect】
As described above, according to the seat having the seating surface of the planar elastic body according to the present invention, the sheet is provided with a support plate having an L-shaped cross section, and the end of the planar elastic body is connected to one side of the support plate, One side of the support plate is disposed above the seat frame along the seating surface, and the other side of the support plate is fastened and fixed to the seat frame with a screw fastener so that the planar elastic body is pulled by the other side of the support plate. Therefore, the upper region of the seat frame can be secured as a pulling margin of the planar elastic body, the tension of the planar elastic body can be adjusted, and the planar elastic body can be stretched over the entire inner area of the seat frame. Holds time well.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing a seat having a seating surface by a planar elastic body according to the present invention.
FIG. 2 is a partial cross-sectional view showing a terminal fastening structure of a planar elastic body in the sheet.
FIG. 3 is a partial cross-sectional view showing a terminal fastening structure according to another embodiment of the planar elastic body in the sheet.
FIG. 4 is a partial cross-sectional view showing a terminal fastening structure according to still another embodiment of the planar elastic body in the sheet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Planar elastic body 2 Seat frame 3 Support plate 3a One side of support plate 3b Other side of support plate 4a, 4b Screw fastener

Claims (1)

In a seat provided with a stretchable planar elastic body on a seating surface, and connecting a terminal of the planar elastic body to a seat frame,
A support plate having an L-shaped cross section, connecting the end of the planar elastic body to one side of the support plate, and arranging one side of the support plate along the seat surface above the seat frame; A seat having a seating surface by a planar elastic body, wherein the other side of the support plate is fastened and fixed to a seat frame with a screw fastener so that the planar elastic body is pulled by the other side of the support plate.

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