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US 10,378,262 B2Granted
Door operator and clutch
AssigneeLeon Yulkowski
InventorLeon Yulkowski
Life of this patent
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Abstract
A door operator, for opening and closing a door with a motor, comprises a worm drive, a clutch coupled to the worm drive, and an output shaft coupled to the clutch. The worm drive comprises a worm and a worm gear. The door operator allows for the use of a low voltage motor to be used to open and close the door.
Claims20
A door operator, for opening and closing a door with a motor, comprising:
- an input worm and an output worm,
- a gear assembly, coupling the input worm to the output worm,
- a clutch, coupled to the gear assembly via the output worm, and
- an output shaft coupled to the clutch and coupled to the gear assembly via the output worm,
- wherein the gear assembly comprises
- an input gear, comprising
- an input worm gear, coupled to the input worm, and
- an input spur gear;
- an intermediate gear, comprising
- a first intermediate spur gear, coupled to the input spur gear,
- a second intermediate spur gear, and
- a shaft, coupled to the first intermediate spur gear and the second intermediate spur gear;
- and
- an output gear, comprising
- an output spur gear, coupled to the second intermediate spur gear and fixed to the output worm, and
- the gear assembly together with the worms has a step down gear ratio of at least 500:1.
13 more elements
A door assembly, comprising:
- a door,
- a door operator, coupled to the door, comprising
- an input worm and an output worm,
- a gear assembly, coupling the input worm to the output worm,
- a clutch, coupled to via the output worm the gear assembly, and
- an output shaft coupled to the clutch and coupled to the gear assembly via the output worm,
- a motor, capable of moving the door between an open position and a closed position, coupled to the input worm,
- at least one battery, in communication with the motor,
- a controller, and
- an input device,
- wherein the gear assembly together with the worms has a step down gear ratio of at least 500:1,
- the door operator does not comprise a spring closer,
- the gear assembly comprises
- an input gear, comprising
- an input worm gear, coupled to the input worm, and
- an input spur gear;
- an intermediate gear, comprising
- a first intermediate spur gear, coupled to the input spur ear,
- a second intermediate spur gear, and
- a shaft, coupled to the first intermediate spur gear and the second intermediate spur gear;
- and
- an output gear, comprising
- an output spur gear, coupled to the second intermediate spur gear and fixed to the output worm, and
- at least one of the input gear, the intermediate gear and the output gear comprises plastic.
21 more elements
Dependencies are inferred from the claim text.