JP2604708Y2 - Polyurethane foam molded products - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a polyurethane foam molded article, and more particularly, to a molded article made by improving a portion near a concave portion for inserting a frame, which can be applied to a cushion for a vehicle such as an automobile cushion.

[0002]

2. Description of the Related Art Conventionally, polyurethane foam molded articles have been used as vehicle cushions such as automobile cushions. Usually, the frame 7 is integrally foam-molded on the back surface of such a molded product, or the frame is attached after the production of the molded product for assembly. Here, in terms of quantity, it is overwhelmingly common to attach the frame later.

FIGS. 1A and 1B show a case of a front back. Note that FIG. 1B is a cross-sectional view taken along line XX of FIG. 1A. On the other hand, FIGS. 2A and 2B show the case of a front cushion. However, FIG.
It is sectional drawing which follows the XX line of (A). In the figure, reference numeral 1 denotes a polyurethane foam mold, reference numeral 2 denotes a frame attached to the back surface of the mold 1, and reference numeral 3 denotes a spring disposed between the frames 2.

[0004]

However, according to the conventional polyurethane foam molded article, when the molded article is used, a problem arises in that the frame 2 and the polyurethane foam mold 1 are rubbed by the movement of the body and an abnormal noise is generated. . Further, by repeatedly using the molded product, the polyurethane foam mold 1 rubbing with the frame 2 may be partially broken.

The present invention has been made in view of such circumstances. When using a molded product, the frame and the polyurethane foam mold are not rubbed by the movement of the body to generate abnormal noise. It is an object of the present invention to provide a polyurethane foam molded article that can avoid partial breakage of a polyurethane foam mold that rubs against a frame by use.

[0006]

According to the present invention, a polyurethane foam mold is provided in which at least a part of a concave portion for inserting a frame in a back side portion of a polyurethane foam mold is provided with a built-up portion for fixing the frame. Goods.

In the present invention, the shape of the build-up portion may be arbitrary. For example, in the case of a front back, when it is provided on one lower side of the frame as shown in FIG.
There is a case where it is provided from one lower side to an upper side of the frame as shown in FIG. 3B, or a case where it is provided on both lower sides as shown in FIG. 3C. On the other hand, in the case of a front cushion, there is a case where it is provided on one lower side of the frame as shown in FIG. 4A, or a case where it is provided on both lower sides of the frame as shown in FIG. 4B. Further, the overlay portion may be formed entirely along the frame, or may be formed at several places with an arbitrary length.

[0008]

In the present invention, since the build-up portion for fixing the frame is provided in at least a part of the frame insertion concave portion in the back side portion of the polyurethane foam mold, the frame is formed on the build-up portion. Securely fixed,
When using the molded product, even when the body is moved, the frame and the polyurethane foam mold can be prevented from being rubbed to generate abnormal noise. Further, for the same reason, it is possible to prevent the polyurethane foam mold that rubs against the frame due to repeated use of the molded product from being partially broken.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The polyurethane foam molded product according to the present invention will be described below with reference to FIGS. 3 (A) to 3 (B) and FIGS. 4 (A) to 4 (C).
This will be described with reference to FIG. The polyurethane foam molded article 31 according to the present invention is, for example, as shown in FIG.
Polyurethane foam mold 32 and a built-up portion for fixing wire 33 provided in a part of recess 34 for inserting frame (wire) 33 in the back side of mold 32
35. Here, the overlay 35 is located on one side of the lower part of the wire 33 and is integrated with the polyurethane foam mold 32.

FIG. 3 (A) shows a case where the wire 33 is located on one lower side of the wire 33. In addition, FIG. 3 (B) shows a case where the wire 33 is provided from one lower side to one upper side of the wire 33, or FIG. As shown in (C), it may be provided on both lower sides of the wire 33. 3A to 3C are applied to the front back, while FIGS. 4A to 4C are applied to the front cushion.
Configurations such as (A) and (B) can be taken. For example, FIG. 4A shows a case where the wire 33 is provided on one lower side, and FIG. 4B shows a case where the wire 33 is provided on both lower sides.

According to the polyurethane foam molded product having such a configuration, the wire 33 is provided in at least a part of the concave portion 34 in the back side of the polyurethane foam mold 32.
The wire 33 and the polyurethane foam mold 32 are securely fixed to the built-up part 35 because the structure is provided with the built-up part 35 for fixing Rubbing can be prevented from generating abnormal noise. For the same reason, the polyurethane foam mold 32 that rubs against the wire 33 due to repeated use of the molded product can be prevented from being partially broken, so that the durability is excellent and the workability can be improved.

In the above-described embodiment, the case where the built-up portion is provided in a part of the concave portion in the back side portion of the polyurethane foam mold has been described. However, the present invention is not limited to this, and may be provided over the entire concave portion.

[0013]

[Effect of the invention] As described in detail above, according to the invention,
When using a molded product, the body and the polyurethane foam mold can be rubbed by the movement of the body to avoid noise, and the polyurethane foam mold that rubs with the frame due to repeated use of the molded product can be partially broken. It is possible to provide a polyurethane foam molded product having good durability and workability.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a conventional polyurethane foam molded product used for a front back. FIG. 1 (A) is a front view of the molded product, and FIG. 1 (B) is a sectional view taken along line XX of FIG. 1 (A). Sectional view along.

FIG. 2 is an explanatory view of a conventional polyurethane foam molded product used for a front cushion. FIG. 2 (A) is a front view of the molded product, and FIG. 2 (B) is XX of FIG. 2 (A).
Sectional view along the line.

FIG. 3 is an explanatory view of the polyurethane foam molded product of the present invention used for a front back. FIG. 3 (A) is provided from the lower side of the frame to the upper side, and FIG. 3 (B) is provided from the lower side to the upper side of the frame. In the case, FIG. 3 (C)
Is a schematic cross-sectional view when provided on both lower sides.

4A and 4B are explanatory diagrams of the polyurethane foam molded product of the present invention used for a front cushion. FIG. 4A schematically illustrates a case where the polyurethane foam molded product is provided on one lower side of a frame, and FIG. Sectional view.

[Explanation of symbols] 31 ... polyurethane foam molded product, 32 ... polyurethane foam mold, 33 ... frame (wire),
34: recess, 35: overlay.

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁷ Identification code FI B29L 31:58

Claims (1)

(57) [Scope of request for utility model registration] 1. A polyurethane foam molded product characterized in that a built-up portion for fixing the frame is provided in at least a part of a frame insertion concave portion in a back side portion of the polyurethane foam mold.