JPH0446856U

JPH0446856U -

Info

Publication number: JPH0446856U
Application number: JP8981490U
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３図は本考案に係るシート装置の
一実施例の概略を夫々示すもので、第１図は要部
構成のみを示す側面図、第２図は同、分解斜視図
、第３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、１０……シートバツクフレ
ーム、１１……上部フレーム、１２……下部フレ
ーム、１４……リンク機構、１５……リンクレバ
ー、１７……シートクツシヨンフレーム、２１…
…ねじ機構、２２……リードスクリユー、２４…
…リンクブラケツト、２９……操作ノブ。 1 to 3 schematically show an embodiment of the seat device according to the present invention, with FIG. 1 being a side view showing only the main structure, and FIG. FIG. 3 is a 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, 10...Seat back frame, 11...Upper frame , 12... Lower frame, 14... Link mechanism, 15... Link lever, 17... Seat cushion frame, 21...
...Screw mechanism, 22...Lead screw, 24...
...Link bracket, 29...Operation knob.

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 that is rotatably supported by the reclining mechanism, the seat back frame of the seat back has upper and lower sides. an upper frame and a lower frame that are configured to be divided into two parts and are relatively rotatably supported by a bent shaft support; Equipped with a link mechanism that rotates relative to each other,
A lead screw is disposed along the front-rear direction on the rear side of the seat cushion, and a link bracket is screwed onto the lead screw so as to be adjustable in front-back movement, and the link mechanism has an upper end that is connected to the upper frame. a link lever rotatably connected and supported on the side and whose lower end is pivotally supported on a link bracket provided on the seat cushion side;
A seat device characterized in that the amount of rotation of the upper frame relative to the lower frame can be adjusted by rotationally driving the lead screw.