Umbrella frame bending structure for two-fold inverted umbrella
US10716372B1 · kind B1 · utility
5Cited by
12References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jan 10, 2019 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Jan 10, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45B2019/008
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An umbrella frame bending structure for two-fold inverted umbrella includes an umbrella shaft assembly, an umbrella frame and bending devices. The bending devices are arranged on the umbrella frame such that when the main ribs and auxiliary ribs of the umbrella frame are opened, the auxiliary ribs limit the opening distance of the main ribs, causing the main ribs to curve. The umbrella frame bending structure has the advantages of low cost, simple structure and ease of installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.