US 6,908,086 B2 · Chuck

Abstract

The chuck (10) is comprised of a chuck body (11) having an inner cone surface and a grip head (12) with a corresponding outer cone surface. The grip head (12) is subdivided into individual clamping jaws (21) by several seperating slots, said clamping jaws being connected to the grip head (12) by means of elastic connecting elements (22). Recesses (25) are provided on the inner cone surface of the chuck body (11) at least in the peripheral area of each seperating slot of the grip head (12), preferably also in the peripheral area of the apex line of each clamping jaw (21). Said recesses (25) have peripheral extension which is greater than that of the separating slots of the grip head (12) or the apex region of the clamping jaws (21). The axial extension of the recesses (25) is at least identical to the largest overlap area of both cone surfaces. The recesses (25) are filled with a filling body (27), made of an elastic, compressible material, up to the imaginary inner cone surface. The filling bodies (27) are permanently connected to the chuck body (11).

Claims13

Dependent claims

A chuck comprising:

a chuck body and a chucking head,
wherein the chuck body has an internal cone surface,
wherein the chucking head has an external cone surface which is matched to the internal cone surface of the chuck body, and
wherein the chucking head is subdivided by axially and radially continuous separating slots into a number of chuck jaws which are combined with one another by elastic connecting elements,
an anti-rotation locking means, which acts between the chuck body and the chucking head and whose part assigned to the chucking head is arranged in the plane of symmetry of one of the chuck jaws, the anti-rotation locking means comprising:
one recess each on the internal cone surface of the chuck body in the circumferential region of each separating slot of the chucking head,
wherein the recesses are at least approximately identical to one another,
wherein the circumferential extent of the recesses is greater than that of the separating slot,
wherein the axial extent of the recesses is at least equal to the greatest axial overlap distance of the two cone surfaces and
wherein the recess is arranged symmetrically to the separating slot.

7 more elements

Dependencies are inferred from the claim text.

Chuck

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Chuck

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Abstract

Claims13