Chuck
AssigneeRoehm GmbH
InventorHans-Dieter Mack
Life of this patent
Estimating the term…
Abstract
The invention relates to a chuck with a chuck body (2) having a centering hole (3) that is tapered frustoconically and in which is provided a clamping member (4) having a clamping thread (5), with an angle drive (8) having a threaded ring (6) engaged with the clamping thread (5), axially fixed to the chuck body (2), coaxial to the clamping member (4), and rotatable by a drive member (9) that can be rotated about a drive axis that is not parallel to the chuck axis. The drive member (9) can be inserted from the end opposite to the centering hole (3) into a body cavity (10) that can be closed by a plate (11) that is supported on the chuck body (2) and/or the threaded ring (6). The drive member (9) is accessible for a drive tool through an aperture (12) in the cavity wall (13).
Claims20
A chuck with a chuck body having a centering hole that is tapered frustoconically and in which is provided a clamping member having a clamping thread, with an angle drive having a threaded ring engaged with the clamping thread, axially fixed to the chuck body coaxial to the clamping member, and rotatable by a drive member that can be rotated about a drive axis that is not parallel to the chuck axis, wherein the drive member can be inserted from the end opposite to the centering hole into a body cavity that can be closed by a plate supported on the chuck body and/or the threaded ring, and that the drive member is accessible to a drive tool through an aperture in the cavity wall.
A chuck comprising:
- a chuck body rotatable about a body axis and having a forwardly open frustoconically tapered hole, a rearwardly open drive cavity, and a nonaxially open tool aperture;
- a radially compressible clamping member in the hole axially shiftable in the chuck body to grip a tool in the hole and formed with a screwthread;
- a threaded ring axially fixed but rotatable about the axis in the chuck body and threadedly engaged with the screwthread of the clamping member, whereby rotation of the ring axially shifts the clamping member;
- an angle-drive member seated in the cavity accessible through the aperture, and operatively engaged with the threaded ring such that rotation of the drive member about a drive axis not parallel to the body axis rotates the ring about the body axis;
- a plate rearwardly closing the cavity and retaining the drive member therein;
- and
- fastening means for securing the plate to the body or to the ring for retaining the member in the cavity.
Dependencies are inferred from the claim text.