Fluid-pressure actuator

An actuating device and fluid pressure technology, which is applied in the direction of fluid pressure actuating device, can solve the problems of air pressure actuating device function damage, etc., and achieve the effect of increasing the number of repetitions

Inactive Publication Date: 2008-11-19
HITACHI MEDICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the tube breaks, the supplied air leaks out of the tube and the function of the pneumatic actuator is impaired

Method used

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Examples

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Embodiment Construction

[0016] Embodiments of the present invention will be described below using the drawings.

[0017] figure 1 It is a longitudinal sectional view illustrating the pneumatic actuator device according to the first embodiment of the present invention. Such as figure 1 As shown, the pneumatic actuator device according to the first embodiment of the present invention is composed of the following components: a rubber tube (hereinafter referred to as an inner tube) 1 that expands by supplying air, and a rubber tube that seals both ends of the inner tube 1 . The plugs 2 and 3, the air supply and discharge pipe 4 installed in such a way as to penetrate the rubber plug 2 and reach the inner space of the inner tube 1, and the net-like first covering body (hereinafter referred to as the first net) covering the outer periphery of the inner tube 1 Sleeve) 5, the second net covering (hereinafter referred to as the second mesh sleeve) 6 covering the outer periphery of the first mesh sleeve 5, f...

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Abstract

In order to improve its durability, a fluid-pressure actuator is constructed from a swelling / contraction body having opposite ends closed by plug members and swelling and contracting when liquid is supplied to and discharged from the body; a cover body for covering the outer peripheral surface of the expansion / contraction body and having its opposite ends fastened and fixed to the plug members; a fluid supply / discharge opening formed in the plug members; and an auxiliary member for preventing or suppressing local deformation in which the cover body swells outward when the fluid is supplied to the swelling / contraction body.

Description

technical field [0001] The present invention relates to a fluid pressure actuator driven by the supply and discharge of fluid such as air. Background technique [0002] In recent years, it has been proposed to use elastic expansion bodies (hereinafter referred to as fluid pressure actuators) described in Patent Document 1 to Patent Document 3 as drive sources for machines. [0003] In conventional fluid pressure actuators, for example, in air actuators, the outer periphery of a rubber tube is covered with a non-stretchable mesh covering, and the tube is expanded by supplying air. , so that the diameter of the coating can be increased. The increase in the diameter of the covering body causes a reduction in the length dimension, and a driving force is generated by the reduction in length. [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 7-24771 [0005] Patent Document 2: Japanese Patent Application Laid-Open No. 2002-103270 [0006] Patent Document 3:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/10
CPCF15B15/103
Inventor 稻员拓海佐藤裕平松万明小浪信松下泰介
Owner HITACHI MEDICAL CORP
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