WHEEL TYPE CONSTRUCTION MACHINERY WITH CRANE FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide wheel type construction machinery with a crane function which provides notification of neglect of attachment/detachment of an external indicating lamp. SOLUTION: Whether the external indicating lamp 20 is attached is detected by external-indicating-lamp proximity switches 61 and 62; a bucket proximity switch 63 detects whether or not a bucket 84C is placed on a placement base 96; and the presence or absence of an operation of an accelerator pedal 72a is detected by a pressure switch 64. Additionally, a contact between relays 65 and 66 is properly switched depending on the result of detection by each of the switches, so that buzzers 67 and 68 can be operated when the external indicating lamp 20 is not attached during crane work and when the external indicating lamp 20 is attached during traveling on the highway. COPYRIGHT: (C)2011,JPO&INPIT