JPH0446857U

JPH0446857U -

Info

Publication number: JPH0446857U
Application number: JP8981590U
Authority: JP
Priority date: 1990-08-28
Filing date: 1990-08-28
Publication date: 1992-04-21

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案に係るシート装置の
一実施例を夫々示すもので、第１図は要部構成の
みを示す概略側断面図、第２図及び第３図はその
要部構成を説明するための概略分解斜視図及びそ
の要部拡大図、第４図はシート全体の概略構成を
示す図である。図中、１……車両用シート（シート装置）、２
……シートクツシヨン、３……シートバツク、３
ａ，３ｂ……上、下部シート体、４……中折れ軸
支部、６……リクライニング機構、７……ベース
、８……回動軸支部、９……アーム、１０……上
部フレーム、１１……下部フレーム、１２……リ
ンク機構、１３……リンクレバー、１４……リン
クプレート、１５……リンク位置調整機構、１６
……操作レバー、１７……ロツクプレート、１８
……第１の爪レバー、２０……第２の爪レバー、
２２……係合ピン、２３……長溝。 1 to 4 show an embodiment of the seat device according to the present invention, in which FIG. 1 is a schematic side sectional view showing only the configuration of the main parts, and FIGS. 2 and 3 are the main parts. FIG. 4 is a schematic exploded perspective view and an enlarged view of the main parts for explaining the structure, and FIG. 4 is a diagram showing the schematic structure of the entire seat. In the figure, 1...vehicle seat (seat device), 2
... Seat cushion, 3... Seat bag, 3
a, 3b...Upper, lower seat body, 4...Center folding shaft support, 6...Reclining mechanism, 7...Base, 8...Rotating shaft support, 9...Arm, 10...Upper frame, 11 ... lower frame, 12 ... link mechanism, 13 ... link lever, 14 ... link plate, 15 ... link position adjustment mechanism, 16
...Operation lever, 17...Lock plate, 18
...first claw lever, 20...second claw lever,
22... Engagement pin, 23... Long groove.

Claims

[Scope of utility model registration request]

In a seat device comprising a seat back that is tiltably supported by a reclining mechanism consisting of a base on the rear end side of the seat cushion and an arm rotatably supported by the reclining mechanism, the seat back frame of the seat back is moved upwardly and downwardly. An upper frame and a lower frame are configured to be divided into two parts and are relatively rotatably supported by a bent shaft support, and the upper frame is operated in conjunction with the tilting operation of the reclining mechanism to move the upper frame relative to the lower frame. A link mechanism includes a link lever whose upper end is rotatably supported on the upper frame side so as to rotate relative to each other, and a lower end of the link lever constituting this link mechanism is rotatably supported. a link position adjustment mechanism using a link plate pivotally supported on a rotation axis of the reclining mechanism;
and an operating lever for operating the reclining mechanism, the operating lever selectively meshing with teeth of a lock plate on the arm side that is pivotally supported on a rotating shaft on a base constituting the reclining mechanism. The first pawl lever is pivotally supported on the base, and the first pawl lever is selectively engaged with the teeth formed on the link plate side.
and a second pawl lever coaxially supported, each lever having an engaging end capable of engaging with a second pawl lever coaxially supported to keep both levers in a locked or unlocked state, and each of these levers 1. A seat device characterized in that the seat device is configured to be able to rotate individually into a locking state and an unlocking state depending on the rotational operation position of the seat device.