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 comprising:
- a chuck body centered on a chuck axis, having an axially forwardly open frustoconically tapered centering hole centered on the chuck axis, and formed with an axially rearwardly open cavity that is opened radially inwardly into the centering hole and closed radially outwardly and with an aperture opening inwardly into the cavity and outwardly to the exterior;
- a clamping member in the centering hole and having a clamping thread;
- an angle drive having
- a threaded ring in the cavity, threadedly engaged with the clamping thread, coaxial to the clamping member, and rotatable in the cavity about the chuck axis, and
- a drive member rotatable in the cavity about a drive axis not parallel to the chuck axis, fittable axially forwardly into the cavity, and accessible to a drive tool through the aperture;
- and
- a plate secured to the chuck body or the threaded ring, fixing the threaded ring axially in the chuck body, and axially rearwardly closing the cavity and retaining the drive member therein, the aperture being centered on the drive axis and of such a cross-sectional size that the drive member cannot fit through it such that the drive member and the threaded ring can only be removed from or installed into the cavity when the plate is not rearwardly closing the cavity.
A chuck comprising:
- a chuck body rotatable about a body axis and having a forwardly open frustoconically tapered hole, a rearwardly open and radially outwardly closed drive cavity, and a nonaxially open tool aperture opening inwardly into the cavity and externally to the exterior;
- 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 in the cavity, rotatable about the axis in the cavity, and threadedly engaged with the screwthread of the clamping member, whereby rotation of the ring axially shifts the clamping member;
- an angle-drive member rotatable about a drive axis not parallel to the body axis in the cavity, accessible through the aperture, and operatively engaged with the threaded ring such that rotation of the drive member about the drive axis rotates the ring about the body axis;
- a plate rearwardly closing the cavity, axially fixing the threaded ring in the cavity, and axially retaining the drive member in the cavity, the aperture being centered on the drive axis and of such a cross-sectional size that the drive member cannot fit through it and the drive member and the threaded ring can only be removed from or installed into the cavity when the plate is not rearwardly closing the cavity;
- and
- fastening means for securing the plate to the body or to the ring for retaining the drive member in the cavity.
Dependencies are inferred from the claim text.