|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||474/14 ; 474/94|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 10 인용 특허 : 15|
A variable ratio drive pulley of the type employed in snowmobiles to transmit a drive from the snowmobile engine to a variable ratio belt drive transmission has a fixed flange and an opposed movable flange which cooperate to drive the belt. The drive pulley is coupled to rotate with the engine crankshaft and the movable flange incorporates centrifugal weights that operate to advance it towards the fixed flange, with a force that increases with speed of rotation to grip the transmission belt between the flanges and apply a driving torque thereto, this tor...
A variable ratio drive pulley comprising: a) a shaft; b) confronting fixed and movable frusto-conical flanges mounted on said shaft to rotate therewith, said fixed flange being fixed to said shaft and said movable flange being guided to move axially of said shaft towards and away from said fixed flange; c) a spring in said pulley being operative to urge said movable flange away from said fixed flange; d) a centrifugally responsive mechanism in said pulley being operative on rotation of said pulley to generate a force urging said movable flange towards sa...