Electric work machine
US12122031B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2022 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Jan 10, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electric work machine reduces damage to its components under a greater load on a spindle. An electric work machine includes a motor, a planetary gear assembly rotatable with a rotational force from the motor and including a carrier having a hole having an inner surface including two carrier flat surfaces, a spindle including a rear portion received in the hole and having an outer surface including two spindle flat surfaces, and a spindle locking assembly that transmits a rotational force in one direction from the carrier to the spindle and including a lock cam surrounding the spindle frontward from a front surface of the carrier and rotatable together with the spindle, a lock ring surrounding the lock cam, and a plurality of cylindrical members between the lock cam and the lock ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.