Quick-change device having an electrical lock status indicator
US11482083B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2020 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Aug 17, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A quick-change device for automatically changing an attachment on a construction machine includes first receptacles disposed on one side of a support for receiving a first coupling element; second receptacles disposed on the other side of the support for receiving a second coupling element, with the second receptacles having at least one locking element which moves between a release position for coupling or uncoupling the attachment and a locked position for holding the attachment in place on the quick-change device; and a display device disposed on the support for monitoring the lock status. The display device includes an electrical lock status indicator and an electrical control unit which activates the lock status indicator in an extended locked position of the locking element and deactivates it in a retracted release position and an extended position of the locking element different from the locked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.