JPH01138823U

JPH01138823U -

Info

Publication number: JPH01138823U
Application number: JP1988035857U
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
のアームとの連結部の拡大図、第４図はシートク
ツシヨンを跳ね上げ位置で固定するための係止手
段の側面図、第５図は同じく係止手段の上面図、
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、１２ｃ……孔
、１４，１５，１８……軸、１３，１７……ブラ
ケツト、１７……凹部、３０……弾性部材、３１
……係止手段、３２……係止ピン、３３……板バ
ネ。 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.
4 is a side view of the locking means for fixing the seat cushion in the flip-up position; FIG. 5 is a top view of the locking means;
FIG. 6 is a block diagram showing a flip-up operation of the seat cushion, and FIG. 7 is a 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, 12c... Hole, 14, 15, 18... Shaft, 13, 17... Bracket, 17... Recess, 30... Elastic member, 31
...Locking means, 32...Latching pin, 33... Leaf spring.

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 recess is formed in the edge of the second bracket; side walls facing each other are formed, and elongated holes having long axes in the longitudinal direction of the arm are formed in the opposing side walls, and both ends of the locking pin are slidably inserted into each of the elongated holes. , the locking pin is biased against the edge of the second bracket, and when the seat cushion is flipped up, the locking pin is moved along the edge of the second bracket and fitted into the recess. The flip-up structure of the seat cushion is characterized by the provision of force means.