Rotating cylinder

The rotary cylinder addresses pressure drop issues by integrating pressure retention valves and a pressure adjustment unit with elastic members and sensors to maintain and detect pressure in the cylinder chambers, ensuring safe and stable operation.

JP2026041116APending Publication Date: 2026-03-10KITAGAWA IRON WORKS CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing rotary cylinders face issues with sudden pressure drops in the cylinder chamber due to deteriorated sealing performance, malfunctioning pressure regulating valves, or incorrect settings, which can compromise safety and pressure detection.

Method used

The rotary cylinder incorporates a rotating body with first and second cylinder chambers, pressure retention valves, and a pressure adjustment unit comprising a pressure adjustment flow path, second piston, and elastic members to alleviate pressure drops and detect abnormalities, using a sensor to monitor the position of a detectable portion.

Benefits of technology

The solution effectively mitigates pressure drops and detects abnormalities in the cylinder chambers, ensuring safe and proper operation of the chuck device by maintaining pressure and providing real-time monitoring.

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Abstract

A rotary cylinder capable of coping with the occurrence of a pressure drop in a working fluid within a cylinder chamber. [Solution] According to the present invention, there is provided a rotary cylinder comprising a base and a rotating body configured to be rotatable relative to the base, wherein the rotating body comprises a rotating body main body, a first piston, first and second cylinder chambers, first and second pressure retention valves, and a pressure adjustment unit, and the pressure adjustment unit is connected to the first cylinder chamber and the second cylinder chamber and is configured to alleviate at least a portion of the pressure drop when a pressure drop of the working fluid occurs in either the first cylinder chamber or the second cylinder chamber.
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Citation Information

Patent Citations

  • Rotary cylinder

    JP2018024046A