Abstract:
Die Erfindung geht aus von einer Werkzeugmaschinenbremsvorrichtung, insbesondere von einer Handwerkzeugmaschinenbremsvorrichtung, einer tragbaren Werkzeugmaschine (12a; 12b; 12c) mit zumindest einer Magnetfeldbremseinheit (14a; 14b; 14c). Es wird vorgeschlagen, dass die Werkzeugmaschinenbremsvorrichtung zumindest eine Abtriebseinheit (42a; 42b; 42c) umfasst, die zumindest ein Abtriebselement (44a, 46a; 44b, 46b; 44c, 46c) aufweist, an dem zumindest ein Bremselement (18a, 24a; 18b, 24b; 18c, 24c) der Magnetfeldbremseinheit (14a; 14b; 14c) angeordnet ist.
Abstract:
A multi-joint fixture including a proximal base unit, one or more arms serially connected by electromagnetically lockable ball joints, and a distal hub. The ball joints unlock when not powered. A centering mechanism biases the ball joints toward a neutral position. A control system activates the electromagnetic brake with a high-then-low voltage profile. A headpiece attaches to the hub and holds a drape that covers the fixture. A connector connects a surgical device to the headpiece. A switch on the hub can be actuated via actuators on the headpiece or connector.
Abstract:
A multi-joint fixture including a proximal base unit, one or more arms serially connected by electromagnetically lockable ball joints, and a distal hub. The ball joints unlock when not powered. A centering mechanism biases the ball joints toward a neutral position. A control system activates the electromagnetic brake with a high-then-low voltage profile. A headpiece attaches to the hub and holds a drape that covers the fixture. A connector connects a surgical device to the headpiece. A switch on the hub can be actuated via actuators on the headpiece or connector.
Abstract:
An incrementally actuated eddy current braking system (100) comprises first and second primary members (300, 500), which further comprise arrays of permanent magnets (310-380, 510-580) arranged in alternating polarity. The respective magnets of the arrays face one another. An optically encoded servomotor (20) is drivingly connected to at least one of the primary members enabling the displacement of said members relative to one another. A processor controls the servomotor by calculating the required displacement based on input parameters like velocity, mass, temperature or humidity.