Bit holder with impact load protection unit
AssigneeWüRth International AG
InventorUdo Cera
Life of this patent
Estimating the term…
Abstract
A bit holder for holding a bit for coupling the bit with a drive tool, wherein the bit holder comprises a receiving unit which is configured for receiving the bit, a tool coupling which is configured for coupling with the drive tool, and an impact load protection unit which is configured for protecting from an impact load which is acting on the bit holder, in particular on a fixing sleeve of the bit holder, when impinging the bit holder on an anchoring base, when an attachment element which is to be driven by the bit, the drive tool and the bit holder, is inserted into the anchoring base.
Claims18
A bit holder for holding a bit for coupling the bit with a drive tool, wherein the bit holder comprises:
- a receiving unit which is configured for receiving the bit;
- a tool coupling which is configured for coupling with the drive tool;
- a fixing sleeve which is fixes the bit at the receiving unit;
- and
- an impact load protection unit which protects the fixing sleeve from an impact load which would act on the fixing sleeve without the impact load protection unit, when impinging the bit holder on an anchoring base;
- wherein the bit holder comprises a bit sleeve, over which the fixing sleeve is mounted;
- and
- wherein the bit sleeve comprises an external thread on which an internal thread of the impact load protection unit is screwable or screwed.
A method of inserting an attachment element into an anchoring base by a bit and a drive tool, wherein the method comprises:
- receiving the bit in a receiving opening of a receiving unit of a bit holder;
- fixing the bit in the receiving opening of the receiving unit by means of a fixing sleeve of the bit holder;
- coupling a tool coupling of the bit holder with the drive tool;
- inserting the attachment element into the anchoring base by applying an inserting force which is acting on the attachment element by the bit, the drive tool and the bit holder;
- and
- providing the bit holder with an impact load protection unit which protects the fixing sleeve from an impact load which would act on the fixing sleeve without the impact load protection unit, when impinging the bit holder on the anchoring base when inserting;
- wherein the bit holder comprises a bit sleeve, over which the fixing sleeve is mounted;
- wherein the bit sleeve comprises an external thread on which an internal thread of the impact load protection unit is screwable or screwed.
Dependencies are inferred from the claim text.