JPH03110097U

JPH03110097U -

Info

Publication number: JPH03110097U
Application number: JP2010490U
Authority: JP
Priority date: 1990-02-27
Filing date: 1990-02-27
Publication date: 1991-11-12

Description

[Brief explanation of drawings]

第１図は、本考案の高所作業車のフートスイツ
チ装置の説明図である。第２図は、高所作業車の
説明図である。第３図は、従来の高所作業車のフ
ートスイツチ装置の説明図である。１……車両、２……ブーム、３……バケツト、
８……操作レバー、９……フートスイツチ装置、
９ａ……踏み込み部材、９ｂ，９ｃ……スイツチ
手段、１１……スプリング手段、１１ａ，１１ｂ
……スプリング。 FIG. 1 is an explanatory diagram of a foot switch device for an aerial work vehicle according to the present invention. FIG. 2 is an explanatory diagram of the aerial work vehicle. FIG. 3 is an explanatory diagram of a conventional foot switch device for an aerial work vehicle. 1...Vehicle, 2...Boom, 3...Bucket,
8... Operating lever, 9... Foot switch device,
9a...Stepping member, 9b, 9c...Switch means, 11...Spring means, 11a, 11b
……spring.

Claims

[Scope of Claim for Utility Model Registration] A bucket for riding a worker is attached to the tip of a boom that is mounted on a vehicle so that it can be freely swiveled and driven to raise and lower, and is interposed in a hydraulic drive circuit of a hydraulic actuator that performs related operations of the boom. The control valve is configured to be controlled by an operating lever attached to a bucket cart, and a foot switch device is attached to the bucket cart, and the operation of the foot switch device disables the driving of the hydraulic actuator. A footswitch device comprising: a stepping member biased in a counter-depressing direction by a spring means;
and a switch means controlled in relation to the depression of the depression member, and the spring means has a spring constant that covers the depression member in the first depression range, and has a spring constant that covers the depression range in the second depression range. related to the stepping member so that the spring constant covering the
The switch means is in a state in which the hydraulic actuator cannot be driven when the tread member is not depressed, and is in a state in which it is possible to drive the hydraulic actuator in the first depression range of the tread member, and when the tread member is not depressed. A footswitch device for an aerial work vehicle, characterized in that the footswitch device is associated with the stepping member so as to disable the hydraulic actuator in the second stepping range.