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US 2016/0107171 A1Published application
Coupling Device for a Laboratory Centrifuge Actuated by Centrifugal Force
AssigneeSigma Laborzentrifugen GmbH
InventorMatthias Bittner
Life of this patent
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Abstract
The invention relates to a laboratory centrifuge (1) with a coupling device (4) actuated by a centrifugal force. According to the invention an eccentric mass (22), especially a roller (23), is guided through a guideway (26) and preferably another guideway (27, 32) in such a way that the centrifugal force (46) of the eccentric mass (22) is deflected in such a way that a coupling force is generated which presses a coupling element (24) radially inwards against the outer surface of a drive shaft (3).
Claims13
A coupling device for a laboratory centrifuge actuated by centrifugal force comprising
- a) a driving element driven by a motor,
- b) an output element drivingly connected to a rotor of the laboratory centrifuge,
- c) said driving element and said output element rotating about a common rotational axis,
- d) a coupling element for releasably coupling the driving element with the output element,
- e) an eccentric mass being located remote from the axis of rotation, rotating together with the driving element or the output element, formed separately from the coupling element and generating a centrifugal force,
- f) said coupling element being actuated via a force flow between the eccentric mass and the coupling element by a coupling force which is dependent on the centrifugal force generated by the eccentric mass,
- g) a guideway interposed in the force flow between the eccentric mass and the coupling element, said guideway establishing a sliding or rolling contact with the eccentric mass and deflecting the centrifugal force of the eccentric mass.
4 more elements
Dependencies are inferred from the claim text.