JPH01138824U

JPH01138824U -

Info

Publication number: JPH01138824U
Application number: JP1988035858U
Authority: JP
Priority date: 1988-03-18
Filing date: 1988-03-18
Publication date: 1989-09-21

Description

[Brief explanation of the drawing]

第１図乃至第６図は本考案のシートクツシヨン
の跳ね上げ構造の一実施例を示し、第１図はリン
ク機構の斜視図、第２図はリンク機構の詳細を示
す要部拡大側面図、第３図は第１のアームと第２
のアームの連結部の拡大図、第４図はステーの取
付構造をしめす構成図、第５図はシートバツクを
前傾させた状態を示す構成図、第６図はシートク
ツシヨンの跳ね上げ操作を示す構成図、第７図は
従来のシートクツシヨンの跳ね上げ構造を示す説
明構成図である。１……シート、２……シートクツシヨン、２ｂ
……自由端、３……シートバツク、３ａ……背面
、５……フロア、１０，２０……リンク機構、１
１，１２，２１，２２……アーム、１４，１５，
１８……軸、１３，１７……ブラケツト、１７ａ
……凹部、３０……弾性部材、３１……係止ピン
、３２……ステー。 Figures 1 to 6 show an embodiment of the flip-up structure of the seat cushion of the present invention, Figure 1 is a perspective view of the link mechanism, and Figure 2 is an enlarged side view of the main parts showing details of the link mechanism. , Figure 3 shows the first arm and the second arm.
Fig. 4 is a block diagram showing the stay mounting structure, Fig. 5 is a block diagram showing the seat back tilted forward, and Fig. 6 is a block diagram showing the seat cushion flip-up operation. FIG. 7 is an explanatory diagram showing a conventional seat cushion flip-up structure. 1... Sheet, 2... Seat cushion, 2b
...Free end, 3... Seat back, 3a... Back, 5... Floor, 10, 20... Link mechanism, 1
1, 12, 21, 22...Arm, 14, 15,
18...Shaft, 13, 17...Bracket, 17a
... recess, 30 ... elastic member, 31 ... locking pin, 32 ... stay.

Claims

[Scope of utility model registration request]

Two link mechanisms each consisting of two arms connected to each other and spaced apart from each other at a predetermined interval are disposed between the seat cushion and the floor, and these link mechanisms flip up the seat cushion. Later, in a seat cushion viewing structure in which the seat back is folded down, one end of the first arm of each link mechanism is rotatably connected to a bracket fixed to the floor, and the first
The other end of the arm is rotatably connected to one end of a second arm, and the other end of the second arm is rotatably attached to a bracket fixed to the back surface of the seat cushion, and is connected to the floor. a first locking means for regulating the opening angle of the first arm with respect to the bracket; a second locking means for regulating the angle formed between the first arm and the second arm;
a third locking means for preventing the flipped up seat cushion from tilting forward and backward; A flip-up structure for a seat cushion, characterized in that the seat back is supported by a stay that is fixed and spanned between these connecting parts.