Invention Grant
- Patent Title: Four-speed drive system for motor-driven appliances
- Patent Title (中): 电动电器四速驱动系统
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Application No.: US13083459Application Date: 2011-04-08
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Publication No.: US08661943B2Publication Date: 2014-03-04
- Inventor: Shu Wan Cheung , Shu Sang Cheung , To Yin Pang
- Applicant: Shu Wan Cheung , Shu Sang Cheung , To Yin Pang
- Applicant Address: CN Guangdong
- Assignee: Huiyang Allan Plastic & Electric Industries Co., Limited
- Current Assignee: Huiyang Allan Plastic & Electric Industries Co., Limited
- Current Assignee Address: CN Guangdong
- Agency: Intellectual Property Law Group LLP
- Priority: CN201020693181U 20101231
- Main IPC: A47J43/08
- IPC: A47J43/08

Abstract:
A mechanical four-speed gearbox/drive system for household appliances comprising two drive-outlets; each drive-outlet driven at two different speeds in the same rotational direction; a motor, motor shaft, first drive-outlet and second drive-outlet, with installation of one-way bearings in suitable places in the gear-train. The motor drives two drive-outlets and rotates in clockwise and counter-clockwise directions through three one-way bearings and two gear down systems to provide four different speed drives. When operating in hi-speed mode, the first drive-outlet is directly driven by the motor. When operating in lo-speed mode, the first drive-outlet is driven via the gear down system, with resulting increase in torque. Simultaneously, second drive-outlet is driven via second gear down system to provide two different speed drives. This gearbox is simple to construct and operable without expensive control electronics. In applications with electronic motor speed and directional control, much broader and practical drive-outlet speed ranges are achieved.
Public/Granted literature
- US20120167712A1 Four-Speed Drive System for Motor-Driven Appliances Public/Granted day:2012-07-05
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