JPH0316467U

JPH0316467U -

Info

Publication number: JPH0316467U
Application number: JP7730389U
Authority: JP
Priority date: 1989-06-30
Filing date: 1989-06-30
Publication date: 1991-02-19

Description

[Brief explanation of drawings]

第１図は本考案による装置の一例の斜視図、第
２図はその要部の構成図、第３図は動作説明図、
第４図は従来の装置の斜視図、第５図はその一部
分の平面図である。図中、１……アツパーフレーム、２……ロアフ
レーム、３……リンク機構としてのＸ形リンク、
１２……テンシヨンスプリング、３０……回転軸
、３３……調整アーム、３５……モータ、３７…
…電源回路、３８……切換スイツチ装置である。 FIG. 1 is a perspective view of an example of the device according to the present invention, FIG. 2 is a configuration diagram of its main parts, and FIG. 3 is an explanatory diagram of its operation.
FIG. 4 is a perspective view of a conventional device, and FIG. 5 is a plan view of a portion thereof. In the figure, 1...upper frame, 2...lower frame, 3...X-shaped link as a link mechanism,
12... Tension spring, 30... Rotating shaft, 33... Adjustment arm, 35... Motor, 37...
. . . power supply circuit, 38 . . . changeover switch device.

Claims

[Scope of Claim for Utility Model Registration] A link mechanism constituting a seat suspension body interposed between a lower frame installed on the floor side and an upper frame to which a seat body is attached, and a movable link mechanism. A pair of tension springs are attached to one end of each side of the frame, and the other end of the pair of tension springs are connected via an equalizer member, and a shaft support is provided on one side of the frame so as to be rotatable in the front and back direction. a rotating shaft for rotating the adjusting arm via a screw mechanism; and a motor for driving the rotating shaft, and a power supply circuit for the motor is configured to drive the motor according to the inclination of the link mechanism. a changeover switch device is provided for switching the rotational direction of the seat suspension, and when the link mechanism constituting the seat suspension body is tilted at a small angle with respect to the neutral tilted state, the motor changes the rotation axis, and the adjustment arm changes the rotation direction of the tensioner. If the link mechanism is tilted to a large angle, the motor is rotated in the opposite direction to control the rotation axis, and the adjustment arm increases the tension of the tension spring. A weight adjustment device for a seat suspension, characterized in that it is driven so as to be rotated in a direction to weaken it.