Simple, glue-free movable track model with dual-pin structure
US9789414B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2016 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jul 20, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H18/021
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A simple, glue-free movable track model with a dual-pin structure comprises an intermediate connecting component (1), a track shoe (2), elastic pin bushes (58) and an auxiliary clamp, an elastic opening (50) is formed on a rotating shaft hole of the intermediate connecting component (1), and the intermediate connecting component (1) is spliced, in a snap-fit manner, with an intermediate rotating shaft (51) of the track shoe (2) through the elastic opening (50); back-off dowels (21) are arranged at the both ends of the track shoe (2) and are spliced with the elastic pin bushes (58) so that the elastic pin bushes (58) can be fit into the back-off dowels (21) and then securely engaged. The movable track model can realize one-time assembly, reduce manufacturing difficulty and improve manufacturing efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.