JPH01148933U

JPH01148933U -

Info

Publication number: JPH01148933U
Application number: JP1988046718U
Authority: JP
Priority date: 1988-04-05
Filing date: 1988-04-05
Publication date: 1989-10-16
Anticipated expiration: 2003-04-05
Also published as: JPH0546977Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る車両用シートに
おけるヒンジナツクル装置部分の要部側面図、第
２図は第１図の―要部縦断面図、第３図は第
１図に示した第１ヒンジナツクルの要部分解斜視
図、第４図は第１図に示した第２ヒンジナツクル
の要部分解斜視図、第５図は第２ヒンジナツクル
の操作プレート部分の分解斜視図、第６図は第５
図の―要部縦断面図、第７図はシートのはね
上げ操作機構の要部斜視図、第８図ないし第１０
図はシート装置の状態変化図、第１１図は第１０
図の部拡大図、第１２図は従来の車両用シー
トの構造説明図である。１……シートクツシヨン、２……シートバツク
、３……ヒンジナツクル装置、４，５……ベース
プレート、６……中間プレート、１０……第１ヒ
ンジナツクル、１１〜１５……支点ピン、１６…
…固定ピン、１７，５６……ラツチプレート、２
１，６０……ロツクプレート、２２，６１……カ
ム、５０……第２ヒンジナツクル、５１〜５３…
…支点ピン、５４，５５……固定ピン。 FIG. 1 is a side view of the main part of the hinge knuckle device in a vehicle seat according to an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the main part of FIG. 1, and FIG. FIG. 4 is an exploded perspective view of the main parts of the second hinge knuckle shown in FIG. 1, FIG. 5 is an exploded perspective view of the operating plate of the second hinge knuckle, and FIG. 5
Fig. 7 is a longitudinal cross-sectional view of the main part, Fig. 7 is a perspective view of the main part of the seat flip-up operation mechanism, and Figs. 8 to 10 are
The figure is a state change diagram of the seat device, and Figure 11 is the 10th
FIG. 12, an enlarged view of the part shown in the figure, is a structural explanatory diagram of a conventional vehicle seat. DESCRIPTION OF SYMBOLS 1... Seat cushion, 2... Seat back, 3... Hinge knuckle device, 4, 5... Base plate, 6... Intermediate plate, 10... First hinge knuckle, 11-15... Fulcrum pin, 16...
...Fixing pin, 17,56...Latch plate, 2
1,60...Lock plate, 22,61...Cam, 50...Second hinge nutcle, 51-53...
...Fully pin, 54, 55... Fixed pin.

Claims

[Scope of utility model registration request]

A vehicle seat comprising a seat cushion attached to the vehicle body side and a seat back rotatably attached to the seat cushion through a pair of left and right hinge knuckle devices in the front and back direction, wherein the hinge knuckle device a first hinge knuckle having a first base plate fixed to the seat cushion and an intermediate plate pivotally attached to the first base plate, and capable of being fixed at a predetermined rotational position by a ratchet mechanism;
The second hinge knuckle has a second base plate fixed to the seat back, and the intermediate plate is pivotally connected to the second base plate, and can be fixed at a predetermined rotational position by a ratchet mechanism. A longitudinal adjustment device for a vehicle seat, characterized in that the ratchet mechanism of the second hinge nut is constituted by a lock plate pivotally attached to the second base plate and a latch plate fixed to the intermediate plate.