JPH0374841U

JPH0374841U -

Info

Publication number: JPH0374841U
Application number: JP13328789U
Authority: JP
Priority date: 1989-11-16
Filing date: 1989-11-16
Publication date: 1991-07-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すシートクツシ
ヨンとシートバツクのヒンジ結合部の要部断面図
、第２図は同実施例におけるヒンジ機構の構成を
分解組み立て状態で示す斜視図、第３図はシート
クツシヨンとシートバツクとがヒンジ結合されて
いる従来の一般的なシートをヒンジ結合部を分解
した状態で示す斜視図、第４図は従来のシートの
ヒンジ機構の断面図、第５図は従来のヒンジ機構
を分解組み立て状態で示す斜視図である。１…シートクツシヨン、２…シートバツク、３
…リクライニングメカ、４…クツシヨンヒンジ板
、５…バツクヒンジ板、６…ヒンジピン、７…リ
ング溝、８…ヒンジ孔、１０…ブツシユ、１０ａ
…筒壁、１０ｂ，１０ｃ…係合鍔、１１…中心孔
、１２…Ｅリング、１３…ヒンジピン、１４…凹
溝、１５…ブツシユ、１５ａ…筒壁、１５ｂ，１
５ｃ…係合鍔、１８…凸部。 Fig. 1 is a sectional view of a main part of a hinge joint between a seat cushion and a seat bag showing an embodiment of the present invention, Fig. 2 is a perspective view showing the configuration of the hinge mechanism in the same embodiment in an exploded and assembled state, and Fig. 3 The figure is a perspective view showing a conventional general seat in which a seat cushion and a seat back are hinged, with the hinge joint part disassembled. Figure 4 is a sectional view of the hinge mechanism of the conventional seat. Figure 5. FIG. 1 is a perspective view showing a conventional hinge mechanism in an exploded and assembled state. 1... Seat cushion, 2... Seat bag, 3
... Reclining mechanism, 4... Cushion hinge plate, 5... Back hinge plate, 6... Hinge pin, 7... Ring groove, 8... Hinge hole, 10... Bush, 10a
... Cylinder wall, 10b, 10c... Engaging collar, 11... Center hole, 12... E-ring, 13... Hinge pin, 14... Concave groove, 15... Bush, 15a... Cylinder wall, 15b, 1
5c... Engagement collar, 18... Convex portion.

Claims

[Scope of utility model registration request]

A hinge pin is fixed to the hinge plate on one side of the hinge plate protruding from the seat cushion side and the hinge plate protruding from the seat back side, and a hinge hole is formed in the hinge plate on the other side to prevent it from falling out. In a seat hinge mechanism in which a seat cushion and a tiltable seat back are hingedly connected by a hinge pin rotatably fitted into a non-metallic bushing which is fitted in an engaged state and which is elastically expandable in a radial direction. An engaging portion is formed on one side of the hinge pin and the bushing, and an engaging receiving portion is formed on the other side, and the hinge pin is inserted into the hinge hole by the engagement of the engaging portion and the engaging receiving portion. A hinge mechanism for a seat, characterized in that it is connected to the seat through a bushing to prevent it from coming off.