Switchable freewheel with locking elements
AssigneeIna Walalager Schaeffler KG
InventorsJohann Stark, Joachim Ritter
Life of this patent
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Abstract
The invention concerns a switchable locking element freewheel with two concentric cage rings and locking elements lodged in pockets thereof, the cage rings being movable relative to each other for switching the freewheel. In order to make such a freewheel basically operable in two opposing directions and to provide simple switchover facilities herefor and also for cases in which switchability is required only in one direction, the relative movement of the two cage rings serving to switch the freewheel is an axial displacement which, with a view to any further embodiments of the freewheel, can be converted into a rotary movement.
Claims12
In a switchable locking element freewheel comprising two concentric cage rings (1,2) and locking elements (5,6) located in pockets (3,4) thereof, the locking elements (5,6) changing their locking position as a result of a relative displacement of the cage rings (1,2), the improvement which comprises at least one of the cage rings (1,2) including facility (8) which is guided along a surface (7) provided on the other cage ring (2,1) and inclined relative to a freewheel axis so that, under an axial force on one of the cage rings (1,2), they are moved relative to each other both in an axial and a circumferential direction, to cause tilting of the locking elements (5,6) for switching the freewheel.
In a switchable locking element freewheel comprising two concentric cage rings (1,2) and locking elements (5,6) located in pockets (3,4) thereof, the locking elements (5,6) changing their locking position as a result of a relative displacement of the cage rings (1,2), the improvement of which comprises at least one of the cage rings (1,2) including at least one facility (14, 14a, 16, 16a), and at least one of the locking elements (5,6) comprises a projection (15,17) at its axial end facing the facility (14, 14a, 16, 16a), which projection (15,17) is tapered in an axial direction toward said facility and comprises a surface (15a, 17a) which is inclined relative to a freewheel axis so that, on application of an axial force to one of the cage rings (1,2), the facility (14, 14a, 16, 16a) is moved along the inclined surface (15a, 17a) with a simultaneous tilting of the locking element (5,6) for switching the freewheel.
Dependencies are inferred from the claim text.