Wall saw having a locking device
AssigneeHilti Aktiengesellschaft
InventorsJosef Schittl, Bruno Werder, Walter Nessler
Life of this patent
Estimating the term…
Abstract
Wall saw having a locking device (41). A saw blade flange (25) of the wall saw is adjustable by the locking device (41) between a locked state and an unlocked state, wherein, in the locked state, the saw blade flange (25) is connected to the drive spindle (33) for rotation therewith, and, in the unlocked state, is adjustable in relation to the drive spindle (33). In the unlocked state of the saw blade flange, the drive spindle is blocked in the direction of rotation of the saw blade and is designed to be rotatable about the axis of rotation in a counter direction directed counter to the direction of rotation.
Claims8
A wall saw comprising:
- a drive spindle mounted rotatably about an axis of rotation;
- a drive motor and a transmission connecting the drive motor to the drive spindle, wherein the transmission is at least partially arranged in a saw arm housing;
- a saw blade fastened to a saw arm and rotatable by the drive spindle in a direction of rotation about the axis of rotation;
- a saw blade flange, the saw blade arrangeable via the saw blade flange on the drive spindle for rotation therewith;
- and
- a lock device, the saw blade flange being adjustable by the lock device between a locked state and an unlocked state, in the locked state the saw blade flange being connected to the drive spindle for rotation therewith, and, in the unlocked state, the saw blade flange being adjustable in relation to the drive spindle,
- in the unlocked state of the saw blade flange, the drive spindle being blocked in the direction of rotation of the saw blade and rotatable about the axis of rotation in a counter direction counter to the direction of rotation.
Dependencies are inferred from the claim text.