IP Library Granted Patent US 9,962,875
Granted Patent B2
US 9,962,875 · App. 14/437,264 · Granted May 8, 2018

Method for producing a steering gear housing

Inventors: Dennis Fuechsel (Schwaebisch Gmuend, DE); Jens Hafermalz (Waeschenbeuren, DE)
Assignee: Robert Bosch Automotive Steering GmbH
B29C45/2708B29C45/14B29C45/14467B29C45/16B62D5/04F16J13/08F16J15/064F16J15/14B29C2045/1454B29K2083/005B29L2031/30
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,962,875
App. No.
14/437,264
Granted
May 8, 2018
Kind
B2
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.

Claims (18)

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.

Assignments (2)
CHANGE OF NAME Recorded May 21, 2015
From: ZF LENKSYSTEME GMBH
To: ROBERT BOSCH AUTOMOTIVE STEERING GMBH
Reel/Frame 035749/0247 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2015
From: FUECHSEL, DENNIS; HAFERMALZ, JENS
To: ROBERT BOSCH AUTOMOTIVE STEERING GMBH
Reel/Frame 035625/0459 →
Priority Claims (1)
DE 10 2012 110 373 · Oct 30, 2012 · national
Continuity (1)
Related Publication 20150273748A1 · Oct 1, 2015