Milwaukee Electric Tool Corporation

Atlas Copco Electric Tools Gmbh

Atlas Copco Elektrowerkzeuge Gmbh

Dieter Hirt

Todd W Johnson

Mark Alan Kubale

Dennis J Grzybowski

Wilhelm Geis

Volker Siegle

A clamping device has a hexagon receptacle for receiving hexagon bits inserted in an axial direction of the hexagon receptacle. A radially movable locking element is provided for engaging a locking recess of an inserted hexagon bit. The locking element has a rest position and projects in the rest position radially inwardly into the hexagon receptacle. A locking sleeve surrounds the hexagon receptacle in an initial position and has a cylindrical securing wall. The securing wall radially secures the locking element in the rest position. The locking element is axially moveable within the hexagon receptacle into a receiving position in which radial deflection of the locking element is enabled.

Clamping device for hexagon bits

Battery

A spindle sleeve (4) is provided for the rotary operation in a tool changing device on a hand-operated machine tool, especially a drill hammer for optional operation with a hammer drill or with another tool. To make rapid tool change possible with a simple design, a locking body (7), which co-rotates with the spindle sleeve (4), is mounted in at least one perforation (6) of the spindle sleeve (4). An adapter (14), on which the corresponding tool can be fixed, can be axially inserted into the spindle sleeve (4) with a guide surface (22, 23), and has depressions (13) for the locking bodies (7) for nonrotatable and axially nondisplaceable connection to the spindle sleeve (4). An outer sleeve (8), which blocks the locking bodies (7) in the depressions (13) in a locking position and radially releases them in its release position, is displaceably arranged on the spindle sleeve (4).

Tool changing device on a hand-operated machine tool

Growing community of inventors

Winnenden, Germany

Dieter Hirt