Title:
CHAIN BLOCK
Document Type and Number:
Japanese Patent JP2018177466
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a chain block that facilitates switching from a low speed rotation mode to a high-speed rotation mode.SOLUTION: A chain block 10 comprises: a first rotor 110 on which first teeth 114a1 are aligned; a second rotor 120 that has second teeth 121a2 located to face the first teeth 114a1 by means of magnetic attraction force when magnetically coupled thereto and that cancels the magnetic coupling by sliding in a thrust direction; a clutch pin 131 integrated with the second rotor 120; and a clutch receiving member 140 with a plurality of pockets into which the clutch pin 131 enters in response to sliding of the second rotor 120. The plurality of pockets comprise: a wind-up-side pocket 141 in which a magnetic member 144 is disposed; a wind-down-side pocket 142 in which a magnetic member 145 is disposed; and an intermediate pocket 143 present between the wind-up-side pocket 141 and the wind-down-side pocket 142 and in which the clutch pin 131 enters without its being magnetically attracted.SELECTED DRAWING: Figure 1
Inventors:
KAWANISHI TAKAYUKI
Application Number:
JP2017079909A
Publication Date:
November 15, 2018
Filing Date:
April 13, 2017
Export Citation:
Assignee:
KITO KK
International Classes:
B66D3/20; F16D11/10; F16H49/00
Attorney, Agent or Firm:
Iat International Patent Business Corporation