JPS6314666U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す駆動機構と駆
動停止制御機構および電気回路との関連系統図、
第２図は偏心ブーム作動の危険作動範囲を示す平
面図、第３図はアームの危険作動範囲を示す側視
図、第４図は油圧シヨベルの側視図、第５図は第
４図の平面図である。 １：建設機械本体、２ｂ：偏心ブーム、３：ア
ーム、４：作業機、２８，２９：検知スイツチ、
１６，１８，２０，２２，２４―１７，１９，２
１，２３，２５：駆動機構、２０ｂ，２１ｂ，２
６，２７，３２，３３，３４，３５：駆動制御機
構。 FIG. 1 is a related system diagram of a drive mechanism, a drive stop control mechanism, and an electric circuit showing an embodiment of the present invention;
Fig. 2 is a plan view showing the dangerous operating range of eccentric boom operation, Fig. 3 is a side view showing the dangerous operating range of the arm, Fig. 4 is a side view of the hydraulic excavator, and Fig. 5 is the same as Fig. 4. FIG. 1: Construction machine body, 2b: Eccentric boom, 3: Arm, 4: Work equipment, 28, 29: Detection switch,
16, 18, 20, 22, 24-17, 19, 2
1, 23, 25: Drive mechanism, 20b, 21b, 2
6, 27, 32, 33, 34, 35: Drive control mechanism.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 建設機械本体から突設された左右への偏心ブー
ムとアームおよび作業機からなる一連の駆動系を
備えた建設機械において、前記偏心ブームと前記
アームの各作動部に、前記作業機が前記本体に接
触するようになる危険作動範囲を検知する検知ス
イツチを個別に設けるとともに、前記検知スイツ
チの両検知によつて作動され前記偏心ブームおよ
び前記アームの駆動を停止する駆動停止制御機構
を、前記偏心ブームおよび前記アームの駆動機構
に付設したことを特徴とする建設機械の駆動安全
装置。 In a construction machine equipped with a series of drive systems consisting of an eccentric boom and arm protruding from the left and right sides of the construction machine body and a work machine, the work machine is connected to the main body at each operating part of the eccentric boom and the arm. The eccentric boom is provided with a detection switch that detects a dangerous operating range in which contact may occur, and a drive stop control mechanism that is activated by both detections of the detection switch and stops the drive of the eccentric boom and the arm. and a drive safety device for construction machinery, characterized in that it is attached to the drive mechanism of the arm.