Umbrella frame device
US6758229B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2003 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 21, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45B25/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An umbrella frame device includes a runner slidably sleeved on a stem for spreading and collapsing a canopy. A retaining member has a retaining end which is movable radially in a slot in the runner and which is extendable inwardly of the runner to slidably contact a slideway on a protuberance disposed on the stem. The retaining end is brought to slip over an upper edge of the protuberance so as to be retained on a shoulder when the runner is moved to an engaging position. A sleeve member surrounds and is movable relative to the runner, and has a cam surface portion which can depress the retaining end radially with a friction force that arrests the runner in the engaging position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.