Abstract A centrifugal clutch in which two brackets are mounted on the opposite ends of a clutch boss and each formed with guide projections and saddle-like arcuate shoes each having a lining and a guide recess fitted with each pair of the opposing guide projections of the brackets so as to be movable radially of the clutch. A stud pin extends between each pair of the opposing guide projections. Holding portions are formed at the circumferentially opposite ends of each of the shoes. Springs each having a longitudinally middle portion in engagement with the outer periphery of each of the stud pins and opposite ends caught on the holding portions urge the shoes toward the center of the clutch, but the outward movement of the opposite ends of the springs is limited by restricting portions at the opposite ends of the shoes when they are forced outward under the action of a centrifugal force. The springs or guide plates on the inner faces of the shoes prevent the shoes from removing from the guide projections in the axial direction of the clutch.
A centrifugal clutch comprising a rotatable driving boss, two brackets mounted on the opposite ends of the boss in spaced parallel relationship, each bracket being provided with a plurality of radially extending guide projections, arcuate shoes each defined by parallel side plates and a connecting web, each side plate having a guide recess receiving each pair of the opposite guide projections of said brackets so as to be movable only radially of the clutch, a lining on the connecting web, stud pins extending between and secured to each pair of the opposing guide projections, holding means provided at the circumferentially opposite ends of each of said side plates of said shoes, and extending between the side plates, spring means having a longitudinally middle portion in engagement with the outer periphery of each of said stud pins and opposite ends engageable with said holding means so as to urge said shoes toward the clutch boss, and restricting means provided at the circumferentially opposite ends of the webs of said shoes for limiting the movement of the opposite ends of said spring means away from the holding means when said spring means are forced outward under the action of a centrifugal force, said spring means preventing said shoes from leaving the guide projections in the axial direction of the clutch.
Claim 2
Dependent Claim
218 words
A centrifugal clutch comprising a rotatable driving boss, two brackets mounted on the opposite ends of the boss in spaced parallel relationship, each bracket being provided with a plurality of radially extending guide projections, arcuate shoes each defined by parallel side plates and a connecting web, each side plate having a guide recess receiving each pair of the opposite guide projections of said brackets so as to be movable only radially of the clutch, a lining on the connecting web, stud pins extending between and secured to each pair of the opposing guide projections, holding means provided at the circumferentially opposite ends of each of said side plates of said shoes, and extending between the side plates, spring means having a longitudinally middle portion in engagement with the outer periphery of each of said stud pins and opposite ends engageable with said holding means so as to urge said shoes toward the clutch boss, and restricting means provided at the circumferentially opposite ends of the webs of said shoes for limiting the movement of the opposite ends of said spring means away from the holding means when said spring means are forced outward under the action of a centrifugal force, said spring means preventing said shoes from leaving the guide projections in the axial direction of the clutch.
Claim 3
Dependent Claim
55 words
The centrifugal clutch as claimed in claim 1 wherein each of said spring means is a leaf spring and is disposed within a space defined by said brackets and the side plates of said shoe, said leaf spring having a width sufficient to prevent said shoe from leaving the guide projections axially of the clutch.
Claim 4
Dependent Claim
45 words
The centrifugal clutch as claimed in claim 1 wherein each of said spring means is a torsion spring and guide plates are provided on the opposing inner side faces of said brackets to prevent said shoe from leaving the guide projections axially of the clutch.