JPH0382228U

JPH0382228U -

Info

Publication number: JPH0382228U
Application number: JP1989143065U
Authority: JP
Priority date: 1989-12-13
Filing date: 1989-12-13
Publication date: 1991-08-22
Anticipated expiration: 2003-10-15
Also published as: JPH0540757Y2

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示すもので、第１図
はロツク装置の起立ロツク状態の内側面図、第２
図は第１図の−線に沿う部分断面図、第３図
は第１図の−線に沿う部分断面図、第４図は
ロツク装置の分解斜視図、第５図ａ，ｂ，ｃはシ
ートバツクのそれぞれ作動状態の側面図、第６図
乃至第９図はロツク装置のそれぞれ一部省略した
作動状態の断面図で、第６図は後傾位置の起立ロ
ツク状態図、第７図はやや浅い後傾位置の起立ロ
ツク状態図、第８図はロツク解除した回動過程の
状態図、第９図は前倒し状態図である。１……シート、２……シートクツシヨン、３…
…シートバツク、５……クツシヨン側ヒンジアー
ム、６……バツク側ヒンジアーム、７……ヒンジ
ピン、８……ガイド、９……ロツクプレート、９
ａ……係合凹部、１２……ロツクピンホルダー、
１４……ロツクピン、１６……ばね、１８，１９
……摺動部（摺動ピン）、Ｋ……クリアランス。 The drawings show one embodiment of the present invention, and FIG. 1 is an internal side view of the locking device in the upright locked state,
The figure is a partial sectional view taken along the - line in Figure 1, Figure 3 is a partial sectional view taken along the - line in Figure 1, Figure 4 is an exploded perspective view of the locking device, and Figures 5 a, b, and c are FIGS. 6 to 9 are side views of the seat back in its operating state, and sectional views of the locking device in its operating state with some parts omitted. FIG. 8 is a state diagram of the locking state in a shallow backward tilted position, FIG. 8 is a state diagram of the rotation process in which the lock is released, and FIG. 9 is a diagram of the state of being tilted forward. 1... Sheet, 2... Seat cushion, 3...
...Seat back, 5...Cushion side hinge arm, 6...Back side hinge arm, 7...Hinge pin, 8...Guide, 9...Lock plate, 9
a...Engagement recess, 12...Lock pin holder,
14... Lock pin, 16... Spring, 18, 19
...Sliding part (sliding pin), K...Clearance.

Claims

[Scope of utility model registration request]

In a seat bag locking device that locks and holds a rotatably pivoted seat bag at a predetermined upright angle by engagement between a lock plate and a lock pin, the lock is always biased to rotate in a direction in which the lock pin is engaged with the lock plate. In addition to providing a sliding part on the pin holder, a guide is provided on the lock plate side with which this sliding part comes into sliding contact during the rotation process of the seat bag, and by being guided in sliding contact with this guide, the lock pin holder is A locking device for a seat back, characterized in that the locking device rotates in the direction opposite to the locking plate to create a clearance between the locking pin and the locking plate.