Method for producing a steering gear housing

Patent metadata

Field	Value
Publication number	US-9962875-B2
Application number	US-201314437264-A
Country	US
Kind code	B2
Filing date	Oct 25, 2013
Priority date	Oct 30, 2012
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

A method and a system for producing a plastic housing are presented. In a first step, a base body and at least one closure element are produced, and in a second step an elastomer layer is applied by way of at least one gate point using a gating process, the layer joining the base body and the at least one closure element to each other.

First claim

The invention claimed is:

1. A method for producing a steering gear housing, comprising:
providing a first housing in which a steering gear is housed;
producing a plastic housing including a base body and at least one closure element, the plastic housing being separate from the first housing and being positioned adjacent the first housing;
applying an elastomer layer, by way of at least one gate point in a gating process, between the base body and said at least one closure element so as to join the base body and the at least one closure element to each other, wherein the elastomer layer achieves a necessary deformation of the at least one closure element with respect to the base body when fixing the plastic housing to the first housing.

2. The method according to claim 1 , wherein the elastomer layer is applied by way of exactly one gate point.

3. The method according to claim 1 , wherein the material used for the elastomer layer is a thermoplastic elastomer.

4. The method according to claim 1 , wherein the material used for the elastomer layer is a silicone material.

5. The method according to claim 1 , wherein an injection molding process is used in said producing the plastic housing.

6. The method according to claim 1 , wherein said applying the elastomer layer comprises a sprue gating step.

7. The method according to claim 1 , wherein said applying the elastomer layer comprises a diaphragm gating step.

8. The method according to claim 1 , wherein the produced plastic housing is connected to the first housing to form the steering gear housing.

9. The method according to claim 1 , wherein said elastomer layer is configured to adapt to a deforming of the at least one closure element, when fixing the plastic housing to the steering housing, to maintain contact with the base body at the elastomer between the base body and the at least one closure element.

10. The method of claim 1 ,
wherein said at least one closure element is configured to deform with respect to said base body during an installation of the plastic housing to the first housing for fixing the plastic housing to the first housing; and
further comprising said elastomer layer conforming to the deforming of the at least one closure element, when fixing the plastic housing to the steering housing, to maintain a contact with the base body at the elastomer between the base body and the at least one closure element.

11. The method according to claim 1 , wherein said applying the elastomer layer comprises applying the elastomer layer continuously across an entire circumference of the base body.

12. The method according to claim 1 , further comprising securing the base body to the first housing, wherein said first housing has a groove and wherein said at least one closure element is configured to engage said groove so as to secure the base body in place to the first housing to close an opening of the first housing, said at least one closure element being stressed into engagement with said groove by axial compression of the elastomer layer.

13. The method according to claim 1 , further comprising securing the base body to the first housing, wherein said first housing has a groove and wherein said at least one closure element is configured to engage into a snap fit connection with said groove so as to secure the base body in place to the first housing to close an opening of the first housing.

Assignees

• Bosch Gmbh Robert Automotive Steering

Inventors

• Fuechsel Dennis
• Hafermalz Jens

Classifications

• F16J13/08

  attached by one or more members actuated to project behind a part or parts of the frame (similar constructions for doors or windows E05C9/00) · CPC title

• B29C45/2708 Primary

  Gates (B29C45/2703 takes precedence) · CPC title

• B29C45/16

  Making multilayered or multicoloured articles {(B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816)} · CPC title

• B29C2045/1454

  injecting between inserts not being in contact with each other · CPC title

• F16J15/064

  the packing combining the sealing function with other functions · CPC title