Brake device
AssigneeS.B. Patent Holdings ApS
InventorErik Skjaerbaek
Life of this patent
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Abstract
The invention relates to a brake device for braking a moving brake body (2) by means of pressing a brake element (3, 4) onto the brake body (2), wherein a conversion device (7) is provided for converting a rotational movement of a brake drive shaft (9) into a translational movement of the brake element (4) in the direction of the brake body (2), wherein a rotary percussion mechanism (8) is connected between the brake drive shaft (9) and the conversion device (7).
Claims16
A brake device for reducing the speed of a moving brake body by pressing a brake element onto the brake body, a conversion means for converting a rotational movement of a brake drive shaft into a translation movement of the brake element in the direction towards the brake body being provided, wherein a rotary impact mechanism is fitted between the brake drive shaft and the conversion means, said rotary impact mechanism including an impact armature and an elastic member which is directly supported by the impact armature and configured to apply an elastic force by which the impact armature is urged in a direction of the brake element, wherein the rotary impact mechanism comprises a driving wheel, said impact armature and the driving wheel being pressed against one another by the elastic force so that the impact armature and the driving wheel are in engagement with one another via axially projecting drivers while transferring a torque from the brake drive shaft to the conversion means, in the course of which, by overcoming the elastic force and by separating the engaged impact armature from the driving wheel by shifting the brake drive shaft into the axial direction a transfer of the impact armature occurs, so that a rotary impact impulse is exerted on the driving wheel when rotation continues and wherein the impact armature engages with a helical control groove of the brake drive shaft via a driving pin.
A brake device for reducing the speed of a moving brake body, comprising:
- a brake element movable in a direction of the brake body;
- a rotating brake drive shaft;
- a conversion member converting a rotation of the brake drive shaft into a translation movement of the brake element in the direction towards the brake body, and
- a rotary impact mechanism fitted between the brake drive shaft and the conversion, said rotary impact mechanism including an impact armature and an elastic member which is directly supported by the impact armature and configured to apply an elastic force by which the impact armature is urged in a direction of the brake element, wherein the rotary impact mechanism comprises a driving wheel having a first axially projecting driver, said impact armature having a second axially projecting driver and operatively connected to the brake drive shaft for movement between one position in which the impact armature is in engagement with the driving wheel via the first and second drivers, and another position in which the impact armature is disengaged from the driving wheel, said elastic member biasing the impact armature to seek the first position, said brake drive shaft interacting with the impact armature in such a way that a rotation of the brake drive shaft urges the impact armature to the first position to thereby transfer a torque from the brake drive shaft to the conversion member, and upon further rotation of the brake drive shaft the impact armature is moved in opposition to an elastic force by the elastic member to the second position to thereby allow a rotation of the impact armature in a first phase and application of a rotary impact impulse upon the driving wheel in a second phase as the impact armature is moved to the first position, and wherein the brake drive shaft has a helical control groove for engagement of a driving pin of the impact armature.
Dependencies are inferred from the claim text.