Title:
ROTATION LOCK DEVICE, LEVER HOIST, AND HOISTING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/251077
Kind Code:
A1
Abstract:
Provided is a hoisting machine which can reliably stop the rotation of a shaft-like member when a brake device has failed, and which can also improve the mounting strength of a pawl shaft. This hoisting machine 10 comprises a rotation lock device 100 which locks the rotation of a shaft-like member 25, the rotation lock device 100 including: a stopper support member 120 which rotates integrally with the shaft-like member 25; a stopper member 140 which is slidably supported by the stopper support member 120; and stopper locking means 110 each having a locking wall 114 which stops the rotation of the shaft-like member 25 by being contacted by the stopper member 140, wherein, when the shaft-like member 25 has accelerated the rotation toward a first rotation direction, the stopper member 140 protrudes to a position engaging with the stopper locking means 110 to stop the rotation of the shaft-like member 25, each stopper locking means 110 is integrated with a pawl shaft 115, and the stopper locking means 110 is mounted to a frame 12 via a stay bolt B1.
Inventors:
KASAI TAKAYUKI (JP)
Application Number:
PCT/JP2021/018865
Publication Date:
December 16, 2021
Filing Date:
May 18, 2021
Export Citation:
Assignee:
KITO KK (JP)
International Classes:
B66D1/54; B66D5/02; B66D3/14
Foreign References:
| JP2002193591A | 2002-07-10 | |||
| JPH05208798A | 1993-08-20 | |||
| JPH07172779A | 1995-07-11 |
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (JP)
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