Chuck for receiving a rotary-percussion tool
US7258350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2004 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Nov 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17068
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chuck for receiving a working tool (2) rotable about a longitudinal axis (A) includes a receiving sleeve (3) having a guide surface (12) extending along the longitudinal axis (A) and at least three, axially extending, up to a free end surface (4) of the chuck (1), entraining grooves (5) located in front of the guide surface (12), arranged radially outside of the radial dimension (R) at angles of 0°, 120°, and 240°, and each having a central angle (α) defined with respect to the radial dimension (R) and amounting to at least 40°; and at least one locking member (6) radially displaceable over the radial dimension (R) and arranged between two circumferentially adjacent entraining grooves (5) and diametrically opposite a third entraining groove (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.