Method of roll-forming with gap fillers for solenoid used for transmission

Patent metadata

Field	Value
Publication number	US-10049813-B2
Application number	US-201615137069-A
Country	US
Kind code	B2
Filing date	Apr 25, 2016
Priority date	Apr 25, 2016
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A method of roll-forming with gap fillers for a solenoid used for a transmission includes the steps of providing a can of a solenoid, the can having a discontinuous surface with a gap, providing additional material in the gap, and roll-forming the additional material in the gap simultaneously with roll-forming the can to maintain a smooth path for rollers during roll-forming for the solenoid.

First claim

What is claimed is:

1. A method for roll-forming with gap fillers for a solenoid used for a transmission, said method comprising the steps of:
providing a can of a solenoid, the can having a discontinuous surface with a gap;
providing additional material in the gap; and
roll-forming the additional material in the gap simultaneously with roll-forming the can to maintain a smooth path for rollers during roll-forming for the solenoid.

2. The method as set forth in claim 1 including the step of providing at least one of a connector, a bobbin, and a sleeve and installing the connector and sleeve in the can from an axial end of the can.

3. The method as set forth in claim 2 wherein the step of adding includes placing additional material in the gap.

4. The method as set forth in claim 3 wherein the step of displacing includes displacing the additional material to maintain a smooth path for the rollers and securing the at least one of the sleeve, the bobbin, and the connector to the can during roll-forming.

5. The method as set forth in claim 2 wherein the additional material is provided on the sleeve.

6. The method as set forth in claim 2 wherein the additional material is provided on the bobbin.

7. The method as set forth in claim 1 wherein the additional material is either one of a plastic material and a metal material capable of absorbing a roll-forming load and deforming with a roll-formed surface.

8. A method for roll-forming with gap fillers for a can of a solenoid used for a transmission, said method comprising the steps of:
providing a can of a solenoid, the can having a discontinuous surface with a gap;
providing at least one of a bobbin, a connector, and a sleeve;
installing the at least one of the bobbin, the connector, and the sleeve in the can from an axial end of the can;
providing additional material in the gap; and
roll-forming the additional material in the gap while simultaneously roll-forming the can to maintain a smooth path for rollers during roll-forming for the solenoid.

9. The method as set forth in claim 8 wherein the step of displacing includes displacing the additional material to maintain a smooth path for the rollers and securing the at least one of the bobbin, the sleeve, and the connector to the can during roll-forming.

10. The method as set forth in claim 8 wherein the additional material is either one of a plastic material and a metal material capable of absorbing a roll-forming load and deforming with a roll-formed surface.

11. The method as set forth in claim 8 wherein the additional material is provided on the sleeve.

12. The method as set forth in claim 8 wherein the additional material is provided on the bobbin.

13. A method for roll-forming with gap fillers for a can of a solenoid used for a transmission, said method comprising the steps of:
providing a can of a solenoid, the can having a discontinuous surface with a gap;
providing a bobbin, a connector, and a sleeve;
installing the bobbin, the connector, and the sleeve in the can from an axial end of the can;
providing additional material to either one of the bobbin and the sleeve in the gap, wherein the additional material is either one of a plastic material and a metal material capable of absorbing a roll-forming load and deforming with a roll-formed surface; and
roll-forming the additional material on the sleeve while simultaneously roll-forming the can to maintain a smooth path for the rollers and securing the bobbin, the sleeve, and the connector to the can during roll-forming for the solenoid.

Assignees

• Borgwarner Inc
• Borgwarner Inc

Inventors

• Ruehl Philip A

Classifications

• H01F41/04 Primary

  for manufacturing coils {(coils for transformer or inductances H01F27/28)} · CPC title

• B29C66/53

  Joining single elements to tubular articles, hollow articles or bars · CPC title

• B21B23/00

  Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes {planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling}(B21B25/00 takes precedence) · CPC title

• Y10T29/4902

  Electromagnet, transformer or inductor · CPC title

• H01F2007/062

  Details of terminals or connectors for electromagnets · CPC title