JPH0319336U

JPH0319336U -

Info

Publication number: JPH0319336U
Application number: JP7988089U
Authority: JP
Priority date: 1989-07-06
Filing date: 1989-07-06
Publication date: 1991-02-26
Anticipated expiration: 2004-07-06
Also published as: JPH0633878Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す分解斜視図、
第２図は本考案の一実施例を示す平面図、第３図
は本考案に採用するレバー機構を示す概略説明図
、第４図は本考案の操作ノブとコンソールボツク
スとの位置関係を示す概略正面図である。第５図
は従来の座席シートを示す斜視図、第６図は従来
のランバーサポート装置を示す平面図、第７図は
第６図の正面図、第８図は従来のランバーサポー
ト装置の操作レバーとコンソールボツクスとの位
置関係を示す概略正面図、第９図乃至第１１図は
従来のランバーサポート装置のカムの形状を示す
概略側断面図である。１……座席シート、２……背凭れ、３……ラン
バーサポート装置、４……ランバープレート、１
１……トーシヨンスプリング、１４……操作ノブ
、１５……回転軸、１８……移動量変換機構、２
３……レバー機構、１９……シヤフト。 FIG. 1 is an exploded perspective view showing an embodiment of the present invention;
Fig. 2 is a plan view showing an embodiment of the invention, Fig. 3 is a schematic explanatory diagram showing the lever mechanism adopted in the invention, and Fig. 4 shows the positional relationship between the operating knob and the console box of the invention. It is a schematic front view. Fig. 5 is a perspective view of a conventional seat, Fig. 6 is a plan view of a conventional lumbar support device, Fig. 7 is a front view of Fig. 6, and Fig. 8 is an operating lever of a conventional lumbar support device. 9 to 11 are schematic side sectional views showing the shape of a cam of a conventional lumbar support device. 1... Seat seat, 2... Backrest, 3... Lumbar support device, 4... Lumbar plate, 1
DESCRIPTION OF SYMBOLS 1...Torsion spring, 14...Operation knob, 15...Rotary axis, 18...Movement amount conversion mechanism, 2
3... Lever mechanism, 19... Shaft.

Claims

[Scope of utility model registration request]

A dial-type operation knob rotatably provided above the side of the backrest of the seat; a movement amount conversion mechanism that converts the amount of rotational movement of a rotating shaft of the operation knob into an amount of movement in the axial direction; and the amount of movement. a lever mechanism that engages with the conversion mechanism and swings in the horizontal direction; a shaft that is suspended and fixed to the lever mechanism and is rotated by the swing; and a shaft that is attached below the shaft and that rotates to rotate the seat in the longitudinal direction of the seat. A lumbar support device comprising a torsion spring that moves forward and backward to apply a biasing force to a lumbar plate.