Bit, in particular a round shaft bit

摘要

A bit assembly includes a bit having a bit head and a bit shank, a mounting sleeve being held in the region of the bit shank, and a support element that comprises a guidance region being associated with the bit. To allow the bit to be easily deinstalled from the bit receptacle and allow it, if applicable, to be easily installed again, provision is made that the support element comprises, in the region of its underside facing away from the bit head, a deflection segment.

主权项

1. A bit assembly, comprising:
a bit including a bit head, a bit shank, and a longitudinal axis, the bit head including a lower region having a contact surface extending perpendicular to the longitudinal axis, the bit including a throat transitioning from the contact surface to the bit shank; a mounting sleeve received about the bit shank; and a support element rotatable relative to the mounting sleeve, the support element including:
an underside facing away from the bit head;an upper side facing toward the bit head, the upper side having a recess partially defined by a support surface facing the bit head, the support surface extending perpendicular to the longitudinal axis, wherein the lower region of the bit head is received in the recess with the contact surface of the lower region engaging the support surface of the support element;a guidance bore extending through the support element from the upper side to the underside, the bit being received through the guidance bore; andan introduction enlargement located above the guidance bore and transitioning from the support surface to the guidance bore, the introduction enlargement being spaced from the throat of the bit to define an opening between the introduction enlargement and the throat to enhance rotatability of the bit relative to the support element, and wherein: the support element includes a protruding centering projection on the underside of the support element; the underside of the support element includes a circumferential lateral surface extending perpendicularly with respect to the longitudinal axis; and the centering projection includes an inclined centering surface, and a set-back recess recessed into the circumferential lateral surface and transitioning the inclined centering surface into the circumferential lateral surface.