JPS621915U

JPS621915U -

Info

Publication number: JPS621915U
Application number: JP9161385U
Authority: JP
Priority date: 1985-06-19
Filing date: 1985-06-19
Publication date: 1987-01-08

Description

[Brief explanation of the drawing]

第１図は、本考案によるシートクツシヨンパツ
ド成形用の型の一実施例を示す斜視図、第２図Ａ
〜Ｄは、その型を用いてシートクツシヨンパツド
を成形する過程を示す垂直横断面図、第３図は、
その型によつて得られるシートクツシヨンパツド
の切り欠き斜視図である。１……シートクツシヨンパツド、１ａ……座面
部、１ｂ……両側支持部、１ｃ……溝、２……軟
質ポリウレタンフオーム層（軟質プラスチツクフ
オーム層）、２ａ……第２の発泡原液、３……硬
質ポリウレタンフオーム層（硬質プラスチツクフ
オーム層）、３ａ……第１の発泡原液、４……型
、５……下型、５ａ……中央成形部、５ｂ……両
側成形部、５ｃ……堰、６……上型。 FIG. 1 is a perspective view showing an embodiment of a mold for forming a seat cushion pad according to the present invention, and FIG.
-D are vertical cross-sectional views showing the process of forming a seat cushion pad using the mold;
FIG. 3 is a cutaway perspective view of a seat cushion pad obtained by the mold. DESCRIPTION OF SYMBOLS 1... Seat cushion pad, 1a... Seat part, 1b... Both side support parts, 1c... Groove, 2... Soft polyurethane foam layer (soft plastic foam layer), 2a... Second foaming stock solution, 3... Hard polyurethane foam layer (hard plastic foam layer), 3a... First foaming stock solution, 4... Mold, 5... Lower mold, 5a... Center molded part, 5b... Both side molded parts, 5c... ...Weir, 6...Upper mold.

Claims

[Claims for Utility Model Registration] The upper layer of the seat portion 1a is formed of a soft plastic foam, and the lower layer of the seat portion 1a and both side support portions 1b are formed of a relatively hard plastic foam layer. A mold used for molding a seat cushion pad 1 having: a lower mold 5 for molding the upper surface side of the seat cushion pad 1; and an upper mold 6 for molding the lower surface side; A first foaming stock solution 3a that foams to form a relatively hard plastic foam layer 3 is injected onto the upper surface of the lower mold 5, and then a second foaming stock solution 3a that foams to form a soft plastic foam layer 2 is poured below. The foaming stock solution 2a is injected, and the central molding part 5a forms the seat surface part 1a of the seat cushion pad 1 by foaming, and the first foaming stock solution 3a overflowing from the central molding part 5a is received; The foaming partitions the both side molded parts 5b forming the both side support parts 1b of the sheet cushion pad 1, the central molded part 5a and the both side support parts 5b, and the foam is injected into the central molded part 5a. A protruding weir 5c that dams up the second foaming stock solution 2a
A mold for forming a seat cushion pad, which is equipped with and .