Brake shoe for elevator safety device

Details Brake shoe for elevator safety device Brake shoe for elevator safety device

1994-07-29

1996-04-02

Oberleitner, Robert J.

Brakes

Elements

Shoes

188250B, 188256, B66B 522

Patent

active

055032575

ABSTRACT:
A brake shoe for an elevator safety device comprising a supporting body provided on a vertically moving body and having a front surface thereof facing a guide rail for being pressed toward the guide rail in the event of an emergency stop; the front surface having a plurality of bottomed holes provided therein; and a plurality of ceramic braking members disposed in the holes of the supporting body and each having a top portion thereof protruding from the front surface of the supporting body and each having an outer size smaller than a complementary size of each the hole. In the brake shoe, deformation, fusion, etc. on braking surfaces and breakage of the braking surfaces due to shocks during operation can be prevented, thereby achieving an improvement in safety and reliability. Further, an elevator speed can be increased and a device size can be reduced. Also, since the braking members have the outer sizes smaller than the complementary size of each of the holes, no compressive stress may normally be generated in the braking members.

REFERENCES:
patent: 45975 (1865-01-01), Champlin

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