JPH0237391Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a cushion foam body for sheets.

BACKGROUND ART Conventionally, in order to prevent deformation of the surroundings of this type of cushion foam, an insert wire has been buried near the surface of the cushion foam during foam molding. In addition, simply burying the wire inside the cushion foam will cause the foam to break, and in order to prevent the wire from being felt directly through the cushion foam when seated, the wire is surrounded by another foam material ( Tokuko Showa 51-
49258) or wrapped in paper (Utility Model No. 56-98057)
It is also known to impregnate and harden a foamed resin for molding a cushion foam and then install it integrally.

Problems to be Solved by the Invention However, although the above-mentioned cushion foam can suppress the foam breakage to some extent, the foam material and wrapping paper impregnated with foamed resin for molding the cushion foam material have increased hardness. It is still impossible to avoid feeling that something is wrong with the lines or pipes along the wire.

In other words, it is an object of the present invention to provide a cushion foam body for a seat that does not cause the form to break due to insert wires, and does not cause discomfort such as lines.

Means for Solving the Problems In the cushion form body for a seat according to the present invention, each of the left and right axis portions of the insert wire buried inside the cushion form along the periphery of the cushion form is arranged so as to rise in accordance with the shape of the bank. A support plate made of rough blanket, urethane slab, etc. is attached so that the flat plate surface is parallel to the slope of the bank part which slopes uphill from the part corresponding to the seat part on at least the axis line, and this support plate is attached. It is constructed by impregnating and hardening a foamed resin for molding a cushion form into a plate and integrally attaching a support plate to the inside of the cushion form together with an insert wire to maintain a flat plate shape.

Function: When this cushion form body for a seat is assembled to a seat, the support plates are positioned relative to each other along the left and right banks to provide surface contact, so localized contact such as linear contact is produced. Not only does it not give a strange feeling, but the wide area of the support plate receives the load of the seater, preventing the insert wire from shifting and breaking the form. The flat plate surface of the support plate is supported inwardly near the surface toward the slope of the embankment by bending the axis at a rising angle corresponding to the shape, so that the buttocks, thighs, etc. of the seated person can be stably supported from the left and right.

Embodiments The following description will be made with reference to the drawings.

This cushion foam body A is suitable for being attached to an automobile seat, and is particularly formed to be attached to a seat cushion of a bucket seat or a seat bag. The cushion foam body A has a portion X corresponding to the left and right bank portions and a portion Y corresponding to the seat surface portion that are integrally molded, and near the surface, insert wire 1 is inserted inside when foaming the cushion foam with foamed resin such as urethane. It is formed by embedding. The insert wire 1 can be made of a metal wire, a plastic wire, or the like, and is embedded all around the periphery of the cushion form body A. Further, the insert wire 1 is axially bent so that the left and right axis portions rise along the bank shape in which the portions X corresponding to the banks of the cushion form are raised higher than the portions Y corresponding to the seat portions. A support plate 2 is fixedly disposed along the axis of the support plate 2 with its flat plate surface oriented parallel to the slope of the bank portion X which slopes upward from the seat portion Y. As this support plate 2, it is preferable to use a hard or semi-hard material that can maintain a plate-like shape and can be impregnated with and hardened with a foam material, such as palm lock, coarse felt blanket, urethane slab, etc. can. The support plate 2 can be placed on the axis of the insert wire 1 and attached to the axis of the wire 1 using a thin metal wire, a clip, etc.
It is possible to embed it integrally inside the cushion foam by placing it along the axis of the cushion foam in advance and then inserting it together with the insert wire 1 into a mold for foam molding the cushion foam.

In the cushion foam body A constructed in this way, the insert wire 1 is embedded inside near the surface along the periphery of the cushion foam body, so that the cushion foam body A can maintain its shape without losing its shape and can also be stress-reduced. The distribution can be evenly distributed. In addition, since a flat support plate 2 is installed on the axis of the insert wire 1, the support plate 2 is flat and has a relatively wide area, so that only the insert wire 1 moves up and down when the load is heavy. Of course not,
Since the support plate 2 is integrally molded with the cushion foam, breakage of the foam can be reliably prevented. Furthermore, since the support plate 2 is flat and is arranged parallel to the slope of the portion corresponding to the bank portion
The flat plate surface of the support plate 2 is supported toward the slope of the part corresponding to the bank part X by bending the axial line part according to the shape of the bank part, so that the buttocks and thighs of the seated person can be stably supported from the left and right sides. become.

In the above-described embodiment, the support plates 2 were arranged only at the left and right banks where the load of the occupant is likely to be applied due to the cushion form of the bucket seat, but the support plates 2 may be arranged along the entire axis of the wire 1. You can also do it.

Effects of the Invention As described above, according to the cushion form for a seat according to the present invention, it is possible not only to form the cushion form so that the support plate does not cause breakage or deformation of the form due to insert wires, but also to provide support for the cushion form. Since the plate does not make the presence of the insert wire felt, and can stably support the seater's buttocks from the left and right sides, it is possible to assemble a seat with good sitting comfort.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a cushion foam body according to the present invention, and FIG. 2 is a plan view of the same foam body.
FIG. 3 is an explanatory diagram showing the load state of the foam body in the figure. 1: Insert wire, 2: Support plate, X: Points corresponding to the left and right banks, Y: Points corresponding to the seat surface.

Claims (1)

[Scope of utility model registration request] In a cushion form body for a seat in which an insert wire is buried inside along the periphery of a cushion form in which a portion corresponding to the intermediate seat portion and a portion corresponding to the left and right bank portions are integrally foam-molded, the insert wire is placed on the left and right sides of the insert wire. A coarse blanket is formed by axially bending the located axial line portion with a rise corresponding to the shape of the bank part, and at least on the axis line, the flat plate surface is oriented parallel to the slope of the part corresponding to the bank part which slopes upward from the part corresponding to the seat part. A support plate such as a urethane slab is attached and impregnated with a foamed resin for forming the cushion foam, and the support plate that maintains the flat shape is integrally installed inside the cushion foam together with the insert wire. Features a cushion foam body for seats.