Shoelace folding and releasing device
US10772385B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Mar 1, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/4431
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Disclosed is a shoelace folding and releasing device, comprising: a thread reel used for winding thread, a knob device in transmission connection with the thread reel, and a position limiting device and arresting disk arranged between the thread reel and the knob device. After the knob device is pressed, both the thread reel and the arresting disk are locked with the knob device. The arresting disk restricts the clockwise or counterclockwise rotation of the knob device, and the knob device drives the thread reel to rotate so as to tighten a shoelace. When the knob device is pulled out, both the thread reel and the arresting disk are unlocked from the knob device, and the thread reel releases the shoelace, and at the same time, the position limiting device restricts the separation of the knob device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.