Snap fastener closure
US5894641A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Oct 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/45754
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The object of a snap fastener closure is to couple a male part with a female part (20) as easily as possible, but so that it is difficult to uncouple them. The female part (20) comprises a push plate (30) which is movable longitudinally in a housing (23) and forks into two plate legs in the interior of the housing. The two plate legs are formed of two portions (31, 32) which are profiled differently with respect to the closing head (12) of the male part, one of these portions (31) serving to lock and the other portion (32) serving to release the closing head (12). In order to achieve easy coupling, it is proposed that the portion (31) acting to lock is provided at the free ends of the two plate legs so that they can spread apart elastically. Then, by inserting the closing head (12) of the male part, an automatic coupling in is made possible between the two plate legs. This portion (31) thus becomes the coupling portion. One plate leg is provided with a bent lengthening (36) which acts as a spring on the push plate (30) and, by its coupling portion (31), holds the push plate (30) in alignment with an entrance hole for the closing head (12) in the housing (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.