Door operator and clutch
First Claim
Patent Images
1. 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, andan output shaft coupled to the clutch and coupled to the gear assembly via the output worm,wherein the gear assembly comprisesan input gear, comprisingan input worm gear, coupled to the input worm, andan input spur gear;
an intermediate gear, comprisinga first intermediate spur gear, coupled to the input spur gear,a second intermediate spur gear, anda shaft, coupled to the first intermediate spur gear and the second intermediate spur gear; and
an output gear, comprisingan output spur gear, coupled to the second intermediate spur gear and fixed to the output worm, andthe gear assembly together with the worms has a step down gear ratio of at least 500;
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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.
106 Citations
20 Claims
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1. A door operator, for opening and closing a door with a motor, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A door assembly, comprising:
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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. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification