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Bellows, use of same and method for producing same

A bellows, construction technology, applied in the direction of chemical instruments and methods, applications, tubular articles, etc., can solve problems such as expensive bellows

Pending Publication Date: 2021-06-18
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the materials used are expensive, the bellows produced therefrom also become expensive

Method used

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  • Bellows, use of same and method for producing same
  • Bellows, use of same and method for producing same
  • Bellows, use of same and method for producing same

Examples

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Embodiment Construction

[0067] exist Figure 1 to Figure 3 An embodiment of a bellows according to the invention comprising a three-layer structure with a first layer 1 , a second layer 2 and a third layer 3 is shown in .

[0068] figure 1 A perspective view of the bellows is shown. The bellows are used as bushings in motor vehicles and are designed as folded bellows.

[0069] exist Figure 1a shown in figure 1 The bellows in have the 90° section removed. From this the multilayer structure of the bellows can be seen.

[0070] exist figure 2 shown in figure 1 Cross-sectional view of the folds of the folded bellows in . The bellows has a three-layer structure and includes a first layer 1 , a second layer 2 and a third layer 3 . All three layers 1 , 2 , 3 are connected to one another in a production-critical manner and are made of a consistent TPE material.

[0071] Due to the uniform design of the material of the bellows, the bellows can be recycled without problems and in a purely pure ma...

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Abstract

The invention relates to a bellows having an at least two-layer structure. The bellows comprises at least one first layer (1) and at least one second layer (2). All the layers (1, 2, 3) are produced simultaneously by co-extrusion in a common co-extrusion tool and are produced so as to form a corrugated tube and thus are non-releasably connected to one another.

Description

technical field [0001] The invention relates to a bellows, the use of the bellows and a method for producing the bellows. Background technique [0002] Bellows are well known and are usually made of thermoplastic elastomers. Existing corrugated pipes have a single-layer structure and are produced from blown pipes, in particular by extrusion blow molding. [0003] Due to the single-layer structure, bellows are often only insufficiently adapted to the respective given conditions of the application. A subregion of the single-layer bellows must also be made of the material used, to which other materials may be better suited, for example with regard to performance properties, the lowest possible weight or more economical manufacturability. Especially when the materials used are expensive, the bellows produced therefrom also become expensive. Contents of the invention [0004] The object addressed by the present invention is to further develop the corrugated tube and the meth...

Claims

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Application Information

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IPC IPC(8): B32B1/08B32B5/18B32B7/02B32B25/04B32B33/00F16J15/52B29C48/13B29C48/21
CPCB32B1/08B32B5/18B32B7/02B32B25/045B32B33/00F16J15/52B29C48/13B29C48/21B32B2597/00F16J3/041F16J3/043B29C48/09B29C49/04B29C48/0017B32B2274/00B32B2266/0292B32B2605/00B32B2250/40B32B3/28
Inventor S·希默R·克诺尔
Owner CARL FREUDENBERG KG
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