JPH01138822U

JPH01138822U -

Info

Publication number: JPH01138822U
Application number: JP1988035856U
Authority: JP
Priority date: 1988-03-18
Filing date: 1988-03-18
Publication date: 1989-09-21

Description

[Brief explanation of drawings]

第１図乃至第４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
のアームとの連結部の拡大図、第４図はシートク
ツシヨンの跳ね上げ操作を示す構成図、第５図及
び第６図は第１のアームの回動係止手段の他の構
成例を示し、第５図はリンク機構の斜視図、第６
図は回動係止手段の作用を説明するための構成図
、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……ストツパ部材。 Figures 1 to 4 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 configuration diagram showing the flip-up operation of the seat cushion, and FIGS. 5 and 6 show other configuration examples of the rotation locking means for the first arm. 5 is a perspective view of the link mechanism, and FIG. 6 is a perspective view of the link mechanism.
The figure is a block diagram for explaining the action of the rotation locking means, and FIG. 7 is an explanatory block 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 ... stopper member.

Claims

[Scope of utility model registration request]

A seat cushion flip-up structure in which a link mechanism constituted by two arms connected to each other is disposed between the seat cushion and the floor, and the seat cushion is flipped up by the link mechanism, One end of the first arm of the link mechanism is rotatably connected to a first bracket fixed to the floor, the other end of the first arm is rotatably connected to one end of the second arm, The other end of the second arm is rotatably attached to a second bracket fixed to the back surface of the seat cushion, and a first arm that regulates the opening angle of the first arm with respect to the first bracket. a locking means, and a second locking means for regulating the angle formed by the first arm and the second arm, a recess is formed in the edge of the second bracket, and a second locking means is provided.
A locking pin is formed protrudingly on both sides of the arm to prevent the seat cushion from tilting forward or backward by fitting into the recess of the second bracket when the seat cushion is flipped up. The seat cushion has a flip-up structure.