Fastening device
US10487866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Feb 2, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B5/0208
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present disclosure illustrates a fastening device. In the fastening device, a sleeve is formed with a through-hole which defines a rotation space, a position-limiting ring is formed on the sleeve and includes a first position-limiting fastening groove and two second position-limiting fastening grooves; a fastening member is formed on a bottom surface of a rod head of a rotary knob device dispose outside the sleeve; a long protrusion rod and two short protrusion rods are formed in the sliding inner hole of the assembly space and respectively aligned with the first position-limiting fastening groove and the two second position-limiting fastening grooves. During locking operation, the drive cap can be bi-directionally rotated; and during unlocking operation, the drive cap can only be unidirectionally rotate, thereby achieving the purpose of easily recognize the locked or unlocked state according to different hand feeling in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.