Methods and assemblies for mounting parts
US4301343A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Jun 20, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49218
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A piece part, such as a flat metal contact spring (12), is mounted between two plastic details (11 and 25), so that an end portion of the spring 12 projects from the mounting details. One of the details, such as a base member 11, has a cavity 17 within which the spring is placed so that a mounting section (12A) fits within the cavity. The second detail, such as a thermoplastic locking insert 25, includes a finger 25B adapted to fit in the cavity adjacent to the spring section (12A). The insert is provided with pointed energy directors (30 and 31) arranged so that the members can be heated and compressed together, and the directors melt to weld the parts together. The insert and/or the base member is formed with slots (33) so positioned that portions of the molten plastic are forced to flow into the slots during the process so as to encapsulate the mounting section of the spring or other piece part in the plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.