JPH0285669U

JPH0285669U -

Info

Publication number: JPH0285669U
Application number: JP16549888U
Authority: JP
Priority date: 1988-12-21
Filing date: 1988-12-21
Publication date: 1990-07-05

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の側断面図、第２図
は第１図の−矢視図、第３図は第１図の−
断面図、第４図は従来例の側断面図、第５図は
第４図の−矢視図、第６図は第４図の部詳
細図である。１は操作室、２はコントロールスタンド、３は
操作レバー、４は支持基管、１２はクランクレバ
ー、１３はステアリングホイール、１４はステア
リングシヤフト、１５はパワーステアリングユニ
ツト、２０は支持ブラケツト、２１は従動ブラケ
ツト、２２は長リンク、２３は短リンク、２５は
シリンダ、２７は固定ブラケツト、２８はブラケ
ツト、２９はロツクピン、３２は嵌合孔、３３は
固定孔、３４はボス、３５は切欠き、３６はボル
ト、３７は雄ねじ部、３８は締付ノブを示す。 FIG. 1 is a side sectional view of one embodiment of the present invention, FIG. 2 is a view taken from the − arrow in FIG. 1, and FIG. 3 is a − arrow view in FIG. 1.
4 is a side sectional view of the conventional example, FIG. 5 is a view taken along the - arrow in FIG. 4, and FIG. 6 is a detailed view of the portion shown in FIG. 4. 1 is an operating room, 2 is a control stand, 3 is an operating lever, 4 is a support base tube, 12 is a crank lever, 13 is a steering wheel, 14 is a steering shaft, 15 is a power steering unit, 20 is a support bracket, and 21 is a driven member. Bracket, 22 is a long link, 23 is a short link, 25 is a cylinder, 27 is a fixed bracket, 28 is a bracket, 29 is a lock pin, 32 is a fitting hole, 33 is a fixing hole, 34 is a boss, 35 is a notch, 36 37 is a male threaded portion, and 38 is a tightening knob.

Claims

[Scope of Claim for Utility Model Registration] 1. A steering shaft whose base end is connected to a power steering unit and a steering wheel for driving operation is attached to the tip, and a position-adjustable crane operating steering wheel disposed on a control stand. In a wheel crane operating device consisting of an operating lever, the power steering unit is connected to a support bracket fixed to the bottom of the operating room floor so as to be swingable in the front and rear directions via long links and short links. An operating device for a wheel crane, characterized in that it is supported by a wheel crane. 2. The operating lever is composed of a support base tube that is pivotally connected to the control stand, and a crank lever that is fitted from the upper end of the support base tube, and a fitting hole is provided in the upper end of the support base tube that is concentric with the support base tube. and a fixing hole that is eccentrically orthogonal to the fitting hole is fixed therein, and a bolt having a wedge-shaped notch in its head that engages with the outer peripheral surface of the crank lever is inserted into the fixing hole with a male threaded portion. 2. The operating device for a wheel crane according to claim 1, wherein the bolt is inserted with a protruding tip thereof, and a tightening knob is screwed onto the tip of the male threaded portion of the bolt.