Retraction device with spring energy accumulator which can be coupled
OwnerMartin Zimmer, Günther Zimmerinventors
Life of this patent
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Abstract
A retraction device includes a housing and a driving element guided in the housing between a parked position and an end position. A first end of a spring energy accumulator is connected to the housing. The spring energy accumulator is loaded to a maximum operating value when the driving element is in the parked position and is unloaded to a residual energy value when the driving element is in the end position. A second end of the spring energy accumulator can either be fixed to the housing or coupled to the driving element by means of a bistable coupling. The coupling has a blocking element that can be moved between the housing and the driving element.
Claims10
A retraction device (10), comprising:
- a housing (20),
- a driving element (60) guided in the housing (20) between a parked position (62) and an end position (61),
- a spring energy accumulator (111) having a first end (112) that is connected to the housing (20),
- wherein the spring energy accumulator (111) is loaded to a maximum operating value when the driving element (60) is in the parked position (62) and is unloaded to a residual energy value when the driving element (60) is in the end position (61);
- and
- a bistable coupling (150) by which a second end (113) of the spring energy accumulator (111) is,
- in a first stable operating state (151), fixed to the housing (20) and,
- in a second stable operating state (152), coupled to the driving element (60),
- wherein the coupling (150) has a blocking element (140) that can be moved between engaging the housing (20) and engaging the driving element (60).
Dependencies are inferred from the claim text.