Winch brake device
AssigneeSumitomo Heavy Industries Construction Cranes Co., Ltd.
InventorKohei Honjo
Life of this patent
Estimating the term…
Abstract
A winch brake device that is used for a work machine and generates a braking force on the basis of a brake manipulation, includes a pressing member that brings braking members into pressure contact with each other to generate the braking force, a first brake cylinder that applies a first pressing force for bringing the braking members into pressure contact with each other to the pressing member, and a second brake cylinder that applies a second pressing force different from the first pressing force to the pressing member. The first brake cylinder and the second brake cylinder are capable of applying the first pressing force or the second pressing force independently of each other.
Claims10
A winch brake device that is used for a work machine and generates a braking force on the basis of a brake manipulation, the winch brake device comprising:
- a pressing member that brings braking members into pressure contact with each other to generate the braking force;
- a first brake cylinder including a first piston that is configured separately from the pressing member and is capable of pressing the pressing member, the first brake cylinder being configured to apply a first pressing force for bringing the braking members into pressure contact with each other to the pressing member via the first piston;
- and
- a second brake cylinder including a second piston that is configured separately from the pressing member and is capable of pressing the pressing member independently of the first piston, the second brake cylinder being configured to apply a second pressing force different from the first pressing force to the pressing member via the second piston,
- wherein the first brake cylinder and the second brake cylinder are capable of applying the first pressing force or the second pressing force independently of each other.
Dependencies are inferred from the claim text.