JPH02103085U

JPH02103085U -

Info

Publication number: JPH02103085U
Application number: JP1100589U
Authority: JP
Priority date: 1989-01-31
Filing date: 1989-01-31
Publication date: 1990-08-16

Description

[Brief explanation of drawings]

第１図は本考案に係る地切り停止装置を搭載し
たクレーン車の一実施例を示す斜視図、第２図は
地切り停止装置を示す説明図である。１……クレーン車、２……ターンテーブル、３
……ブーム、４……ワイヤー、５……ウインチモ
ータ、６……荷重検出器、７……操作レバー、８
……判別器、９……操作レバー位置検出器、１０
……ＡＮＤ回路、１１……ウインチモータ作動停
止装置。 FIG. 1 is a perspective view showing an embodiment of a crane vehicle equipped with a ground cutting stop device according to the present invention, and FIG. 2 is an explanatory diagram showing the ground cutting stopping device. 1... Crane truck, 2... Turntable, 3
...Boom, 4...Wire, 5...Winch motor, 6...Load detector, 7...Operation lever, 8
... Discriminator, 9 ... Operation lever position detector, 10
...AND circuit, 11...Winch motor operation stop device.

Claims

[Scope of utility model registration request]

A boom that can be raised and retracted is installed on the chassis via a turntable, and a wire stretched between the tip of the boom and a winch motor installed near the turntable is wound up and lowered along the boom. In a crane vehicle that lifts a load, a load detector is installed at an appropriate position on the boom, and a load detector is installed after the load detector to determine when the load detected by the load detector has become constant. a discriminator, an operating lever position detector that detects that the operating lever of the winch motor is operated to the hoisting side, and a detection signal detected by the operating lever position detector and a discrimination signal discriminated by the discriminator. A ground cutting stop device for a crane vehicle, comprising: an AND circuit that is activated when input signals are input simultaneously; and a winch motor operation stop device that is activated by an output signal of the AND circuit to stop the winch motor.