Castor type roller controlled by motor
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TENTE
- Publication Date
- 2006-07-26
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
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Abstract
Description
technical field
[0001] The present invention relates to a roller; in particular, it relates to a caster-type roller in which the turning motion of the turning wheel and the turning movement of the turning wheel around the fulcrum are fixed. The working shaft passes through the control cam of the roller, and the motor acts on the roller through the gear mechanism to make the roller work. Background technique
[0002] U.S. Patent No. 5,377,372 discloses a roller that can fix the rotary motion of the running wheel and the rotary motion around the support, and utilize the rocker pedal to switch. This pedal protrudes into the center of the chassis of the movable bed, which makes the gearing of the rollers rather complicated.
[0003] From DE-A1 4318546 it is known to use an electric motor to control the working shaft of the control cam via the rollers. The motor and the gear mechanism drive a push rod, and the push rod rotates the working shaft through a hinged lever that rotat...