Coupler for air suspension and apparatus and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-12157265-B2
Application number	US-202318321317-A
Country	US
Kind code	B2
Filing date	May 22, 2023
Priority date	Sep 28, 2020
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

A method of manufacturing a coupler for an air suspension includes: preparing a topping cord sheet and a rubber band; connecting the topping cord sheet and the rubber band to each other by attaching the rubber band to an outer circumferential surface of the topping cord sheet; and vulcanizing an intermediately formed body made by the connecting of the topping cord sheet and the rubber band to each other.

First claim

What is claimed is:

1. An apparatus for manufacturing a coupler for an air suspension, the apparatus comprising:
a forming unit configured to connect a topping cord sheet and a rubber band to each other by attaching the rubber band to an outer circumferential surface of the topping cord sheet, the forming unit comprising a first mold having an inner surface on which the rubber band and the topping cord sheet are dispose; and
a vulcanization unit configured to vulcanize an intermediately formed body made by the connecting of the topping cord sheet and the rubber band to each other,
wherein an accommodation groove is disposed in the inner surface of the first mold and accommodates the rubber band.

2. The apparatus of claim 1 , wherein the forming unit further comprises:
a pressing part configured to press the topping cord sheet in a direction in which the outer circumferential surface of the topping cord sheet comes into close contact with an inner surface of the rubber band.

3. The apparatus of claim 2 , wherein the pressing part comprises a bladder configured to be expandable and contractible, and to press an inner circumferential surface of the topping cord sheet.

4. The apparatus of claim 3 , wherein wherein the bladder presses the inner circumferential surface of the topping cord sheet in a state in which the topping cord sheet is disposed to cover the accommodation groove.

5. The apparatus of claim 1 , wherein the vulcanization unit comprises:
a second mold having an inner surface on which the intermediately formed body is disposed;
a pressing part configured to press the intermediately formed body against the inner surface of the second mold; and
a heating part configured to heat the second mold.

6. The apparatus of claim 5 , wherein the pressing part comprises a bladder configured to press an inner circumferential surface of the intermediately formed body.

7. The apparatus of claim 5 , wherein the second mold has a single second inner circumferential surface connected continuously.

8. An apparatus for manufacturing a coupler for an air suspension, the apparatus comprising:
a mold having an accommodation groove disposed in an inner surface of the mold which is configured to hold a rubber band, wherein a topping cord sheet is configured to be disposed on the inner surface of the mold to cover the rubber band, and the mold is further configured to press the topping cord sheet in a direction in which an outer circumferential surface of the topping cord sheet comes into contact with an inner surface of the rubber band; and
a vulcanization unit configured to vulcanize an intermediately formed body made by the connecting the topping cord sheet and the rubber band to each other.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Seo Kang Won
• Cho Chang Ho
• Kim Jong Hoon

Classifications

• B29C53/845

  especially adapted for winding and joining · CPC title

• B29C63/0069

  of tubular articles · CPC title

• B29C65/7841

  Holding or clamping means for handling purposes (clamping means for the purpose of applying pressure on the parts to be joined, in the area to be joined B29C66/81; work holders in general B25B; devices for holding or positioning work for welding metal B23K37/04) · CPC title

• B29C53/583

  for making tubular articles with particular features · CPC title

• B29L2031/774

  Springs · CPC title