Cutting unit
US11235480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is disclosed a cutting unit (14, 60, 80, 100) for a hair cutting device (10), comprising: a blade carrier (16) carrying a cutting blade; a guard (18) comprising: a blade-facing surface engaging the cutting blade at a cut location; a planar guard contact surface (30) for contacting skin of a user, wherein the guard contact surface (30) is angled with respect to the blade-facing surface; and a guard extender (40, 70, 90) separate from the guard (18), wherein the guard extender (40, 70, 90) comprises a planar extension contact surface (46, 76, 96) configured to cooperate with the guard contact surface (30) to provide an extended contact zone (50) across the guard (18) and the guard extender (40, 70, 90) for contacting skin of a user. The blade-facing surface and the guard contact surface (30) converge towards a tip of the guard, wherein a cutting direction extends along the guard contact surface (30) towards the tip. The guard extender (40, 70, 90) is configured so that the extension contact surface (46, 76, 96) is rearward of the guard contact surface (30) with respect to the cutting direction X. The extension contact surface (96) has a transverse extent along an axis perpendic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.