Patent ID: 6120400
Filing Date: 2000-09-19
Classification: F16H

Abstract:
A transmission wheel pressurizing apparatus in which a transmission wheel comprises a movable wheel and a fixed wheel, said movable wheel sandwiches a transmission body between said movable wheel and said fixed wheel and is always biased in a pressurizing state toward said fixed wheel by an elastic device to change pressurizing force according to variable speed pressurizing instructions supplied by a driving source and transmit power between said transmission wheel and said transmission body,comprising said elastic device having an elastic member supported to be capable of transmitting an elastic force at one end and not capable of transmitting an elastic force at the other end, said one end or said other end of said elastic member being compressibly operatively connected to a compression device, and said compression device for compressing and pressurizing said elastic device according to variable speed pressurizing instructions while inhibiting a discharge of said elastic force except between said transmission wheel and said elastic device, wherein said elastic device variably press-controls said transmission wheel while always applying the elastic force between said transmission wheel and said elastic device, in such a manner that the pressurizing force to said transmission wheel increases when the number of revolutions decreases and decreases when the same increases and is made substantially in inverse proportion to the number of revolutions by said compression device whereby the compression pressurizing force of said elastic device generated by superposing in series both pressurizing forces of said elastic device and said compression device is given between said transmission wheel and a body.