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US 2015/0247512 A1Published application
Cylinder device with force multiplication mechanism
AssigneeKosmek Ltd.
InventorsHideaki Yokota, Keitaro Yonezawa
Life of this patent
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Abstract
A first piston (4) which is coupled to an output rod (2) and which is inserted in a housing (3) is driven upward by a pressurized fluid. A second piston (6) which is arranged above the first piston (4) is driven downward. This causes a wedge-type force multiplier (M), arranged above the first piston (4), to carry out force multiplication driving with respect to the output rod (2).
Claims12
A cylinder device having a force multiplier, wherein
- a wedge-type force multiplier (M) is caused to carry out force multiplication driving with respect to an output rod (2) by (i) driving, with the use of a pressurized fluid, an pressure-receiving surface (5) of a first piston (4, 4A) which is coupled to the output rod (2) and which is inserted in a housing (3, 3A) and (ii) moving, to a first piston side, a second piston (6, 6A) which is provided on an output rod side of the first piston (4, 4A),
- the pressure-receiving surface (5) being located on an opposite side of the output rod (2),
- the wedge-type force multiplier (M) being provided on the output rod side of the first piston (4, 4A).
Dependencies are inferred from the claim text.