US 12,280,475 B2
Bit holder with impact load protection unit
Udo Cera, Schwäbisch Hall (DE)
Assigned to Würth International AG, (CH)
Filed by WÜRTH INTERNATIONAL AG, Chur (CH)
Filed on Apr. 23, 2021, as Appl. No. 17/239,464.
Claims priority of application No. 10 2020 113 683.8 (DE), filed on May 20, 2020.
Prior Publication US 2021/0362309 A1, Nov. 25, 2021
Int. Cl. B25B 23/00 (2006.01); B25B 21/00 (2006.01); B25B 21/02 (2006.01)
CPC B25B 23/00 (2013.01) [B25B 23/0035 (2013.01); B23B 2231/04 (2013.01); B25B 21/007 (2013.01); B25B 21/02 (2013.01); Y10T 279/3406 (2015.01); Y10T 279/3493 (2015.01)] 18 Claims
OG exemplary drawing
 
1. 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.