Chisel holder, and chisel holder system comprising a chisel holder and a base part

摘要

A chisel holder comprises a body zone (12) having a chisel receiving opening (18) that is open at least in the direction of a chisel insertion end (14) of the body zone (12), and also comprises a fastening shaft (26) which extends from a supporting end (20) of the body zone (12) and has a longitudinal shaft axis. A fastening member-affecting zone is provided on a first side of the fastening shaft (26), and a supporting zone (78) that has supporting surface regions (88, 90) which are inclined relative to each other and adjoin each other in a transition zone (92) extending in the direction of the longitudinal shaft axis is provided on a second side of the fastening shaft (26), said second side lying opposite the first side relative to the longitudinal shaft axis. Said chisel holder is characterized in that the transition zone (92) is designed like a cavity, or/and at least some sections of at least one supporting surface region (88, 90) project radially outward from a basic outer peripheral surface (94) of the fastening shaft (26) in relation to the longitudinal shaft axis.

主权项

1. A chisel holder, comprising:
a body region having a chisel-receiving opening which is open at least toward a chisel insertion side of the body region; and a fastening shank which extends from a supporting side of the body region and which has a shank longitudinal axis (LB) and a main outer circumferential surface; wherein on the fastening shank there are provided, on a first side, a fastening element loading region and, on a second side situated opposite in relation to the shank longitudinal axis (LB), a supporting region with supporting surface regions which are inclined relative to one another and adjoin one another in a transition region extending in the direction of the shank longitudinal axis (LB), wherein the fastening shank is formed, in the region of its main outer circumferential surface, with a round outer circumferential contour, wherein at least one supporting surface region is formed so as to protrude at least in regions radially outward in relation to the shank longitudinal axis (LB) beyond the main outer circumferential surface of the fastening shank, and wherein the transition region is formed in the manner of a depression.