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Actuating device

A technology for operating devices and hoses, which is applied in the direction of fluid pressure actuating devices, hoses, pipes, etc., and can solve problems such as bursting, restrictions on the realization of pipeline structures, and insufficient pulling force

Inactive Publication Date: 2005-06-08
FESTO AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the case of a hose body made of a rubber-elastic deformable material without reinforcements for increased strength and / or force transmission, the problem arises that the hose body expands radially when pressurized. , but the tensile force transmitted to the head is not enough, and there is a risk of bursting when the pressure load is too high
On the other hand, if the operating device is smaller than a certain minimum size in terms of structural dimensions, then the implementation of the pipeline structure for reinforcement is limited
This problem cannot be dealt with even by embedding the piping structure in the hose body material, as proposed for example by German Utility Model 29908008

Method used

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Embodiment Construction

[0016] The operating device 1 shown in a greatly simplified manner in FIG. 1 comprises two heads 3 , 4 arranged at a distance from one another, which are fixedly connected to one another via a hollow body having a straight line and referred to as shrink tube 2 . The shrink hose 2 consists of an elastically deformable, fluid-impermeable hose body 5, which defines an inner cavity 6 passing between the two heads 3, 4, and is defined by its two axial end portions The sections are respectively fixed sealingly on one of the two heads 3 , 4 . Fastening can take place, for example, in the context of a clamp connection, as described in EP 0161750 B1 as an example. However, other fastening methods are also possible.

[0017] At least one fluid passage 7 leads into the inner cavity 6 surrounded by the hose body 5 and the two heads 3, 4, the fluid passage passes through a head 3, and its outer end is equipped with a connecting device 8, through which The connection device can connect fl...

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Abstract

A fluid power operable actuating device, which possesses a flexible contractible tube extending between two spaced head pieces, such flexible contractible tube being caused to expand radially when its inner space is subjected to fluid pressure and transmitting simultaneously axial forces, due to contraction, to the head pieces. The flexible contractible tube comprises an elastically deforming flexible tube body which has a special geometrical shape having a cross sectional outline on the inner periphery and / or the outer periphery of the flexible tube body which is non-circular and / or is in the form of several portions of the body of the flexible tube with properties of the material of the flexible tube body which are different from one another.

Description

technical field [0001] The invention relates to an operating device actuatable by fluid force, having a constricting hose extending between two spaced apart heads, which expands radially when fluid is introduced into its lumen and at the same time The axial contraction force is transmitted to the head, wherein the contraction tube has an elastically deformable tube body, which is provided with reinforcements for increased strength and / or force transmission. Background technique [0002] An operating device of this type can, for example, assume a drive function, wherein it can optionally be used as a normal fluid-operated working cylinder. In a form of construction proposed by EP 0161750 B1, the two heads are connected to each other by a shrink tube, which consists of a rubber-elastic hose body and a fabric-shaped tube that surrounds the hose body coaxially. road structure. The pipe structure acts as a reinforcement structure, which increases the strength of the shrink hose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/00F15B15/10F16L11/12
CPCF15B15/103F16L11/121F15B15/10
Inventor A·克里维特B·罗伦滋
Owner FESTO AG & CO KG
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