Excavator PC200 - 7 Hydraulic Safety Lock 20Y - 43 - 31513 Normal Size Plastic Material

20Y - 43 - 31513 Hydraulic Safety Lock PC200 - 7 / 8 Cabin Hydraulic Safety Lever Pilot Lock

Specifiion

Description

Safety lever system in a cab of an excavator, which is capable of preventing an unintended descending of a control box without the operation of the safety lever, and promoting a safer tilting of the control box through a limit means that controls the power appliion/short-circuit. According to the present invention, if the operator tilts the control box to get in or get out of the cab, the safety lever system shunts (i.e., short-circuit) the power of the control lever or the control box. Therefore, the possibility of malfunction of the excavator due to the miss-operation of the operator is very slim, and the control box cannot be returned to its original position unless the operator operates the safety lever again. This structural improvement of the safety lever eliminates a possibility of the malfunction of the excavator due to the operator's mistake, and markedly increases the reliability of the excavator.

Characteristic
 
1. the tilting device includes a rotating bracket connected to one end of the safety lever, and is hinged at a hinge axis, being extended; and a spring bracket hinged equally at the hinge axis below the rotating bracket.
2. the rotating bracket has an extended end of a designated length, and to a guide pin in opposite direction of the end.
3. the tilting device further includes a first cylinder rotatably installed on the end of the rotating bracket.
4. the control box further includes a rotation stopper for controlling a rotation interval of the back and forth rotation of the end of the rotation bracket.
5. the tilting device further includes an elastic body for elastically supporting the spring bracket.
6. the fixed plate further includes a fixed axis that is suspended by a suspension end of the spring bracket for fixing the control box.
 
 
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