JPH0183633U

JPH0183633U -

Info

Publication number: JPH0183633U
Application number: JP1987179625U
Authority: JP
Priority date: 1987-11-27
Filing date: 1987-11-27
Publication date: 1989-06-02
Also published as: JPH0454023Y2

Description

[Brief explanation of the drawing]

第１図は、この考案に係る前後チルト機構の斜
視図、第２図は、ハンドル手段の分解斜視図、第
３図は、第９図の線―に沿つたハンドルシヤ
フトの断面図、第４図ないし第８図は、シートク
ツシヨンを傾斜させる際の各動作状態を示す前後
チルト機構の各正面図、第９図、第１０図は、ハ
ンドルの引上げの前後における、第４図の線―
に沿つた前後チルト機構の各断面図、第１１図
、第１２図は、シートクツシヨンを平行シフトさ
せる際の各動作状態における前後チルト機構の各
正面図である。１０：前後チルト機構、１２：シートフレーム
、１３：シートクツシヨン、１４：ハンドル手段
、１６，１７：ロツクプレート、２０，２１：リ
ンク機構、２４：ハンドル、２６：ハンドルシヤ
フト、２８：連結シヤフト、２９：長孔、３０：
連結ピン、３４：揺動ピン、３６：ハンドル手段
のリリース片、３８，３９：ロツクプレートの歯
、４０，４１：ピン（ロツクプレートの回動中心
）、４４，４５：ロツクプレートの作動片、４８
：支持片、５０，５１：引張ばね（偏倚手段）、
５４，５５：リンク、５６，５７：ロツクピン、
６２，６３：連結リンク、７２，７３：引張ばね
（偏倚手段）。 FIG. 1 is a perspective view of the longitudinal tilt mechanism according to the invention, FIG. 2 is an exploded perspective view of the handle means, FIG. 3 is a sectional view of the handle shaft taken along the line - in FIG. 9, and FIG. 8 to 8 are front views of the front and rear tilting mechanisms showing various operating states when tilting the seat cushion, and FIGS. 9 and 10 show the lines in FIG. 4 before and after the handle is pulled up.
11 and 12 are front views of the longitudinal tilt mechanism in various operating states when shifting the seat cushion in parallel. 10: Front and rear tilt mechanism, 12: Seat frame, 13: Seat cushion, 14: Handle means, 16, 17: Lock plate, 20, 21: Link mechanism, 24: Handle, 26: Handle shaft, 28: Connection shaft, 29: Long hole, 30:
Connection pin, 34: Swing pin, 36: Release piece of handle means, 38, 39: Teeth of lock plate, 40, 41: Pin (rotation center of lock plate), 44, 45: Operating piece of lock plate, 48
: Support piece, 50, 51: Tension spring (biasing means),
54, 55: Link, 56, 57: Lock pin,
62, 63: connecting link, 72, 73: tension spring (biasing means).

Claims

[Claims for Utility Model Registration] A handle that is rotatable and movable up and down in the center of one side of a seat frame loaded with seats, and a release piece that is installed on the shaft of the handle. and a handle means having a plurality of teeth on the lower surface, disposed in the front-rear direction at the central part of one side of the seat frame with the handle means in between, and with one end remote from the handle means being engaged by a rotation pin. the release piece is rotatably mounted on the side frame, and the pushable actuation piece of the release piece engages front and rear lock plates provided at the other end adjacent the handle means and corresponding lock plate teeth; front and rear link mechanisms each having a link with a lock pin at one end for locking the lock plate and a connecting link for arranging the links so as to change the rising height of the link; and a link for each link mechanism. The first lock pin is biased to engage the teeth of the corresponding lock plate.
and second biasing means for biasing the actuating piece of each lock plate in the release direction, and when the handle is rotated or raised or lowered, the release piece causes the actuation of the corresponding lock plate. A seat back-and-forth tilt mechanism that presses one piece to rotate the corresponding lock plate, causing the teeth of the lock plate to separate from the lock pin, thereby freeing the lock plate.