JPS62115235U

JPS62115235U -

Info

Publication number: JPS62115235U
Application number: JP367186U
Authority: JP
Priority date: 1986-01-14
Filing date: 1986-01-14
Publication date: 1987-07-22
Also published as: JPH0355455Y2

Description

[Brief explanation of the drawing]

第１図は、この考案の好適な実施例を示す側面
図、第２図は回転軸を回転させるための機構部分
を示す斜視図、第３図は第２図の平面図、第４図
は第２図の正面図、第５図は回転軸の構成の詳細
を示す断面図、第６図はナツト部材とリンクとの
関係を示す部分的斜視図、第７図はギアボツクス
と操作軸との関係を示す斜視図、第８図はギアボ
ツクスに操作軸を回転可能に取付けた状態の断面
図、第９図ａ乃至ｃはシート座部の動きを説明す
る図、第１０図ａ及びｂもシート座部の動きを説
明する図、第１１図は従来例を示す斜視図である
。１…フレーム、２…基板、３…シート座部、４
，５…回転軸、６，７…ねじ部、８，９…ナツト
部材、１０，１１…リンク、１２，１３…従動歯
車、１４…第１歯車、１５…第２歯車、１６…第
１歯車機構、１７…第２歯車機構、１８…操作軸
、１９…駆動歯車。 Fig. 1 is a side view showing a preferred embodiment of the invention, Fig. 2 is a perspective view showing a mechanism for rotating the rotating shaft, Fig. 3 is a plan view of Fig. 2, and Fig. 4 is a side view showing a preferred embodiment of the invention. Fig. 2 is a front view, Fig. 5 is a sectional view showing details of the configuration of the rotating shaft, Fig. 6 is a partial perspective view showing the relationship between the nut member and the link, and Fig. 7 is a diagram showing the relationship between the gearbox and the operating shaft. FIG. 8 is a sectional view showing the operation shaft rotatably attached to the gearbox, FIGS. 9 a to c are views explaining the movement of the seat, and FIGS. 10 a and b also show the seat. FIG. 11, which is a diagram for explaining the movement of the seat portion, is a perspective view showing a conventional example. 1... Frame, 2... Board, 3... Seat seat, 4
, 5... Rotating shaft, 6, 7... Threaded portion, 8, 9... Nut member, 10, 11... Link, 12, 13... Driven gear, 14... First gear, 15... Second gear, 16... First gear mechanism, 17... second gear mechanism, 18... operating shaft, 19... drive gear.

Claims

[Scope of Claim for Utility Model Registration] Two rotating shafts are provided on the same axis on the frame of the seat, a threaded portion is formed on the circumferential surface of each rotating shaft, a nut member is screwed into each threaded portion, and each nut is The upper end of each link is rotatably attached to the member, the lower end of each link is rotatably attached to the board, driven gears are respectively fixed to the mutually facing ends of each rotating shaft, and a first gear is attached to each driven gear. and a second gear mechanism, the first and second gears are provided with a first gear mechanism and a second gear mechanism, respectively, and a drive gear provided on the operating shaft is engaged with both or selectively of the first and second gear mechanisms. A seat lifter device, characterized in that either the first gear mechanism or the second gear mechanism is provided with a mechanism for reversing the rotation of the first gear or the second gear.