Threaded driving structure for automatic umbrella
US9526307B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2015 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Jun 9, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45B25/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A threaded driving structure for an automatic umbrella contains: a first stick section and a second stick section fitted on and sliding relative to the first stick section. The first stick section includes a first fixing sleeve disposed on a top end thereof, and first fixing sleeve has a first orifice defined thereon. The second stick section includes a second fixing sleeve mounted on a top end thereof. The first stick section also includes a first support member with inner threads, and the second stick section includes a screw rod with outer threads, wherein an upper end of the screw rod is connected with the second fixing sleeve, and a lower end of the screw rod is screwed with the inner threads of the first support member via the first orifice, a lower end of the first support member is joined with a power apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.