JPH0446855U

JPH0446855U -

Info

Publication number: JPH0446855U
Application number: JP8981390U
Authority: JP
Priority date: 1990-08-28
Filing date: 1990-08-28
Publication date: 1992-04-21
Anticipated expiration: 2003-07-16
Also published as: JPH0527876Y2

Description

[Brief explanation of the drawing]

第１図乃至第５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
みを示す概略斜視図、第２図及び第３図はその要
部を拡大して示す分解斜視図、第４図はシート全
体の概略構成を示す図、第５図はシートバツクの
中折れ状態を説明するためのシートの概略側面図
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……直線
ロツク機構、１５……フレキシブルワイヤ、１６
……操作レバー機構、２０……操作レバー、２１
……ロツクレバー、２２……爪レバー、２７……
カム部材。 Figures 1 to 5 show one embodiment of the seat device according to the present invention, with Figure 1 being a schematic perspective view showing only the configuration of the main parts, and Figures 2 and 3 showing the main parts. FIG. 4 is an enlarged exploded perspective view, FIG. 4 is a diagram showing the general structure of the entire seat, and FIG. 5 is a schematic side view of the seat for explaining the folded state of the seat bag. 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 ... linear lock mechanism, 15 ... flexible wire, 16
... Operating lever mechanism, 20... Operating lever, 21
... Lock lever, 22 ... Claw lever, 27 ...
cam member.

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 using a link lever, the lower end of which is rotatably supported on the seat cushion side and the upper end rotatably supported on the upper frame side so as to rotate relative to each other; and this link. a link operation length adjustment mechanism provided in the middle of a link lever constituting the mechanism and adjusting the length in the longitudinal direction of the lever; an adjustment means for operating this adjustment mechanism; and an operation lever mechanism for operating the reclining mechanism. This operating lever mechanism includes a rotatable operating lever, this operating lever is pivotally supported at one end, and the other end is pivotally supported on a base, and the reclining mechanism is always in a locked state. and a lock lever that is biased to hold the lock lever, and the operating lever is configured to be able to engage with the lock lever when locking or unlocking the lock lever, and the operating lever is configured to be able to engage with the lock lever when locking or unlocking the lock lever. When rotated in the opposite direction, the link length adjustment mechanism is operated via the adjustment means to variably adjust the link length, thereby tilting the upper frame relative to the lower frame. A seat device characterized in that its state is adjustable.