Connection method for a braided hose

Patent metadata

Field	Value
Publication number	US-9593785-B2
Application number	US-201514626994-A
Country	US
Kind code	B2
Filing date	Feb 20, 2015
Priority date	Feb 20, 2014
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A method is provided for connecting a tubular structural element to a braided hose. The method includes placing the braided hose in the tubular structural element, placing a blow hose in the braided hose and applying internal pressure to expand the braided hose into contact with the tubular structural member. Heat then is applied to cure an adhesion promoter to achieve a positive materially integral connection of the braided profile to the tubular structural member.

First claim

What is claimed is:

1. A method for connecting a free end region of a braided hose to a tubular structural element of a vehicle, comprising: introducing the free end region of the flexurally slack unconsolidated braided hose into the tubular structural element of a tie-up bracket while causing all parts of the braided hose extending from the free end region to project from the tubular structural element; inserting a blow hose into the braided hose; applying an internal pressure into the blow hose to radial expand the free end region of the braided hose into contact with the tubular structural element; applying heat for curing an adhesion promoter introduced between the free end region of the braided hose and the tubular structural element for achieving a materially integral connection between the free end region of the braided hose and the tubular structural element while parts of the braided hose adjacent the free end region project from the tubular structural element; and removing the blow hose from the braided hose.

2. The method of claim 1 , wherein the braided hose is composed of a hybrid yarn.

3. The method of claim 1 , wherein the adhesion promoter is a two-component adhesive.

4. The method of claim 1 , wherein the tie-up bracket has a sleeve-shaped extension, and the step of inserting a free end region of the braided hose in the flexurally slack unconsolidated state into the tie-up bracket comprises inserting the free end region of the braided hose into the sleeve-shaped extension of the tie-up bracket.

5. The method of claim 4 , further comprising welding the tie-up bracket to a flanged plate that has an orifice for accommodating a protruding end of the braided hose in a preparatory state.

6. The method of claim 1 , wherein the free and region of the braided hose is adjacent a first free end region adjacent a first end of the braided hose, the braided hose further having a second end and a second free end region adjacent the second end, the method further comprising: introducing the second free end region of the flexurally slack unconsolidated braided hose into a second tubular structural element spaced from the tie-up bracket; inserting a blow hose into the braided hose; applying an internal pressure into the blow hose to radial expand the first and second end regions of the braided hose into contact with the tubular structural elements; applying heat for curing an adhesion promoter introduced between the free end regions of the braided hose and the tubular structural elements for achieving a materially integral connection between the free end regions of the braided hose and the tubular structural elements; and removing the blow hose from the braided hose.

7. A method for connecting a braided hose to a tubular structural element that defines a hollow profile, the method comprising: inserting an intermediate region of the braided hose in a flexurally slack unconsolidated state into the hollow profile; placing a region of the flexurally slack unconsolidated braided hose and the hollow profile into a die; inserting a blow hose into the braided hose; applying an internal pressure into the blow hose to radial expand the braided hose into contact with the hollow profile; applying heat to the die for curing an adhesion promoter introduced between the braided hose and the hollow profile for achieving a materially integral connection between the braided hose and the hollow; and removing the blow hose from the braided hose.

8. The method of claim 7 , wherein the step of applying an internal pressure into the blow hose to radial expand the braided hose causes the braided hose to conform to a profile shape of the hollow profile and to conform to a profile shape of the die in free regions outside of the hollow profile, and wherein the braided hose has a diameter larger than a diameter of the hollow profile.

9. The method of claim 7 , wherein the braided hose has, in the consolidated state, an undercut connection with the hollow profile.

10. A method for connecting a braided hose to a tubular structural element, comprising forming inwardly projecting local embossings in the tubular structural element; introducing a flexurally slack unconsolidated braided hose into the tubular structural element; inserting a blow hose into the braided hose; applying an internal pressure into the blow hose to radial expand the braided hose into contact with the tubular structural element and thereby causing the local embossings to penetrate into and latch the braided hose as the braided hose is expanded radially by the internal pressure applied into the blow hose; applying heat for curing an adhesion promoter introduced between the braided hose and the tubular structural element for achieving a materially integral connection between the braided hose and the tubular structural element; and removing the blow hose from the braided hose.

Assignees

• Porsche Ag
• Porsche Ag

Inventors

• Koehler Norman
• Renz Ralph
• Scheiner Philipp
• Bohlien Jens
• Geuther Marco

Classifications

• B29C66/5344

  said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends (B29C66/5346 takes precedence) · CPC title

• B29C66/72141

  Fibres of continuous length · CPC title

• B29C66/81455

  being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure (inflatable element positioned between the joining tool and a backing-up part B29C66/82421) · CPC title

• B29K2105/0827

  Braided fabrics · CPC title

• F16B11/006 Primary

  by gluing (gluing of plastics material B29C65/48) · CPC title