Device for supplying rinsing medium in a hammer drill
US9689616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2012 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jul 15, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21B7/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A device for supplying a rinsing medium to a tool of a hammer drill and a hammer drill. The device includes at least one of a rotatable and axially displaceable drilling tool holder having at least one supply channel for the rinsing medium, a transfer part interacting with the drilling tool holder, a housing, a feeder structured and shaped essentially in an axially symmetrical manner, and a holding part with a rinsing medium inlet. The feeder and the holding part are arranged as a connected component, and friction bearings are arranged on both sides of the feeder and arranged toward the drilling tool holder. The holding part is structured to be radially displaceable within limits via bending with respect to at least one of the housing and a fixing ring connected to the housing, but positively fixed tangentially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.