JPS6266538U

JPS6266538U -

Info

Publication number: JPS6266538U
Application number: JP15954485U
Authority: JP
Priority date: 1985-10-18
Filing date: 1985-10-18
Publication date: 1987-04-24

Description

[Brief explanation of the drawing]

第１図乃至第７図はこの考案の一実施例を示す
もので、第１図は座席シートに組込んだ使用状態
の斜視図、第２図はこの考案の装置だけの正面図
、第３図は第１及び第２の張り調整機構による各
サポート材の張り状態を示す説明図、第４図は第
１の張り調整機構の要部拡大平面図、第５図は同
じく第４図Ｖ―Ｖ線におけるカム機構の断面図、
第６図は第２の張り調整機構の要部拡大平面図、
第７図は第６図の―線における断面図でさる
。１……座席シート、３……シートバツク、４，
５……内部フレーム、６……ランバーサポート装
置、７，８，９……サポート材、１０……第１の
張り調整機構、２０……第２の張り調整機構。 Figures 1 to 7 show one embodiment of this invention, in which Figure 1 is a perspective view of the device in use, incorporated into a seat, Figure 2 is a front view of only the device of this invention, and Figure 3 is a perspective view of the device in use. The figure is an explanatory diagram showing the tension state of each support material by the first and second tension adjustment mechanisms, Figure 4 is an enlarged plan view of the main part of the first tension adjustment mechanism, and Figure 5 is also Figure 4V- A cross-sectional view of the cam mechanism along the V line,
FIG. 6 is an enlarged plan view of the main parts of the second tension adjustment mechanism;
FIG. 7 is a sectional view taken along the line --- in FIG. 6. 1... Seat seat, 3... Seat bag, 4,
5... Internal frame, 6... Lumbar support device, 7, 8, 9... Support material, 10... First tension adjustment mechanism, 20... Second tension adjustment mechanism.

Claims

[Scope of utility model registration request]

Band-shaped support materials are horizontally suspended in parallel in upper, middle, and lower three stages in the seat bag of a seat such as a vehicle, and a first tension adjustment mechanism capable of simultaneously adjusting the tension of each support material in multiple stages is installed in the seat bag. A second tension adjustment mechanism is provided on one side of the seat bag, and a second tension adjustment mechanism is provided on the other side of the seat bag, which can alternately adjust the tension state of only the upper and lower support materials excluding the intermediate support material. Lumbar support device.