Title:
MULTI-STAGE FLUID PRESSURE CYLINDER
Document Type and Number:
Japanese Patent JP2022036744
Kind Code:
A
Abstract:
To prevent a snap ring from coming off.SOLUTION: A multi-stage fluid pressure cylinder 100 comprises a cylinder tube 10, a first rod assembly 30 provided with an outer piston part 32, a second rod assembly 40 provided with a first inner piston part 42, and a snap ring 35 that is accommodated in an annular recess 30b formed in the first rod assembly 30. The first inner piston part 42 is provided with an accommodation recess 42c for accommodating an inner diameter side of the snap ring 35. At least one of the first rod assembly 30 and the second rod assembly 40 is provided with communication passages 32c, 42d that put a gap G1, which is defined by the snap ring 35, an outer peripheral surface 42a of the first inner piston part 42 and an inner peripheral surface 30a of the first rod assembly 30 in a state where the snap ring 35 is accommodated in the accommodation recess 42c, into communication with a counter rod side chamber 5.SELECTED DRAWING: Figure 6
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Inventors:
FUNATO YASUSHI
TANIGAWA NATSUKI
TANIGAWA NATSUKI
Application Number:
JP2020141111A
Publication Date:
March 08, 2022
Filing Date:
August 24, 2020
Export Citation:
Assignee:
KYB CORP
International Classes:
F15B15/16; F15B15/14
Attorney, Agent or Firm:
Goto Patent Office