CLEARANCE EXPANDING MACHINE FOR RESCUE OF PERSON FROM COLLAPSED HOUSE

摘要

PROBLEM TO BE SOLVED: To provide an expanding machine which generates a good gap for lifting a collapsed part of a house for the purpose of rescue of person(s) living under the collapsed house. ;SOLUTION: A plurality of expansion devices 3 are furnished between a pair of upper and lower plates 2, and a power transmitting member 4 is installed to transmit the power required to expand each expansion device. The expansion devices may be operated mechanically or by fluid pressure. These are inserted to a gap in a collapsed house and expansion is made so that a good gap is produced.;COPYRIGHT: (C)1998,JPO