Device for fixing a pulley
AssigneeNice Ltd.
InventorsAndrea Malausa, Lorenzo Galberti
Life of this patent
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Abstract
A device (10) for fixing a pulley (40) includes a rotating pin (12) on the outer surface of which the pulley (40) may be fixed. The rotating pin (12) has at least one locking element (50) movable between a first locking position where it retains the pulley (40) and a second releasing position where it does not retain it. The locking element (50) is coupled with at least one element (60) which can be operated by the user so that the displacement of said at least one element (60) which can be operated by the user causes the displacement of the at least one locking element (50) between the first and second position.
Claims18
In combination, a gearmotor and a pulley, the gearmotor fixable with the pulley, the combination comprising:
- the gearmotor comprising
- a rotating pin comprising an outer surface for receiving the pulley and a cavity having a bottom surface,
- a locking element received entirely in the cavity, the locking element being movable in the cavity relative to the rotating pin between a first and a second locking position and between the second and first locking position, the first locking position being one where the rotating pin and the pulley are retained together, the second locking position being one where the rotating pin and the pulley are not retained together,
- a plurality of flexible arms disposed on the locking element for biasing the locking element in the first locking position without flaring the rotating pin, each arm comprising a locking tooth disposed at a first end of the respective arm;
- a user-operable element disposed on the locking element for axially moving the locking element relative to the rotating pin from the first to the second locking position inside the cavity responsive to a user.
In combination, a gearmotor and a pulley that are easily separable, the combination comprising:
- a rotating pin coupled to the gearmotor;
- an outer surface of the rotating pin, the rotating pin receiving the pulley on the outer surface;
- a locking element received entirely in the rotating pin, the locking element movable relative the rotating pin between a first and a second locking position and between the second and first locking position, the first locking position being one where the rotating pin retains the pulley and the second locking position being one where the rotating pin does not retain the pulley,
- the locking element comprising a user-operable element for axially moving the locking element from first locking position to the second locking position for easily separating the pulley and the gearmotor;
- and
- a plurality of flexible arms disposed on the locking element for biasing the locking element in the first locking position without flaring the rotating pin, each arm comprising a locking tooth disposed at a first end of the respective arm.
In combination, a gearmotor for roller blinds and a pulley;
- the combination comprising:
- a gearmotor comprising
- a rotating pin having an inner space and an outer surface, the outer surface for receiving a pulley for winding the roller blinds;
- a locking element received entirely in the inner space to lock the rotating pin and pulley, the locking element comprising a user-operable head, the locking element being longitudinally displaceable relative to the inner space from a first longitudinal position to a second longitudinal position when a user operates the head, the first longitudinal position causing the rotating pin and a pulley to be longitudinally locked together and the second longitudinal position causing the rotating pin and pulley to be longitudinally disengaged;
- and
- a plurality of flexible arms disposed on the locking element for biasing the locking element in the first locking position without flaring the rotating pin, each arm comprising a locking tooth disposed at a first end of the respective arm.
Dependencies are inferred from the claim text.