JPS59149893U

JPS59149893U - Crane truck fall prevention device

Info

Publication number: JPS59149893U
Application number: JP4458883U
Authority: JP
Inventors: 江原　知正; 大川原　実
Original assignee: 愛知車輌株式会社
Priority date: 1983-03-28
Filing date: 1983-03-28
Publication date: 1984-10-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図はクレーン車の側
面図、第２図は転倒防止装置のフ旧ツク線図、第３図〜
第６図は各種クレーン作業の説明図である。３・・・伸縮ブーム、８・・・サブブーム、９・・・メ
インフック、１０・・・サブフック、１１・・・メイン
ウィンチ、１２・・・サブウィンチ、１５・・・ブーム
長さ検出器、１６・・・起伏角度検出器、１７・・・サ
ブブーム状態検出器、１８．１９・・・吊荷状態検出器
、２０・・・モーメント検出器、２１・・・演算器、２
２・・・比較器、２３・・・会報器、２４・・・クレー
ン作動停止装置。、Ｌｒ、ｌ　　−一７６甲−℃門、″℃ ゛　　　　　　２３、「ｈ　１」〜２４−　　　第５図
　　　　− ：第３図 ”随３ −　　　　　　Ｊ３ゾロ図　　　−２ｆ／９ノー′７′ｌThe drawings show an embodiment of the present invention; Fig. 1 is a side view of a crane truck, Fig. 2 is a diagram of the fall prevention device, and Figs.
FIG. 6 is an explanatory diagram of various crane operations. 3... Telescopic boom, 8... Sub boom, 9... Main hook, 10... Sub hook, 11... Main winch, 12... Sub winch, 15... Boom length detector, 16 ... Lifting angle detector, 17... Sub-boom condition detector, 18.19... Hanging load condition detector, 20... Moment detector, 21... Arithmetic unit, 2
2... Comparator, 23... Newsletter, 24... Crane operation stop device. , Lr, l -176 A-℃ gate, "℃ ゛ 23, "h 1" ~ 24- Figure 5 -: Figure 3 "3 - J 3 Zoro diagram -2f/ 9 no'7'l

Claims

[Scope of utility model registration request]

The rated load or rated load moment is calculated by detecting the boom's heave angle and extension/contraction length, and this is compared with the actual load or actual load moment. A crane vehicle overturn prevention device that issues an alarm or stops crane operation when the winch reaches the upper limit includes a load condition detector that detects whether the winch is in a suspended load condition and a sub-boom in a retracted condition or an extended condition. A crane vehicle overturn prevention device characterized by Kokichi, which is equipped with a sub-boom condition detector that detects whether the sub-boom is in the working condition, thereby automatically switching the rated load signal or rated load moment signal depending on the working condition.