Patent ID: 7694792
Filing Date: 2010-04-13
Classification: F16D

Abstract:
1. A twin clutch device comprising: a first clutch of a multiple disc type includes a first clutch outer formed in a bottomed cylindrical shape while having an annular plate portion on one end thereof and being rotated due to power transmitted from a power source; and a second clutch of a multiple disc type includes a second clutch outer rotated together with the first clutch outer and being coaxially arranged inside the first clutch in the radial direction; clutch inners respectively provided to the first and second clutches, at least one clutch inner being arranged between a clutch constituting member which constitutes a portion of the outer of the first and second clutches and the annular plate portion when the clutch constituting member is relatively rotatable with respect to the clutch inner; pressure plates for changing over the first and second clutches between disconnection state and connection state are respectively supported on annular-plate-portion-side end portions of both clutch inners when the pressure plates are operable in the axial direction and, at the same time, clutch springs for biasing the pressure plates to a connection side are respectively arranged on the annular-plate-portion-side end portions, one ends of lifter pins having axes thereof arranged parallel to a rotational axis of the first and second clutches respectively penetrate both clutch inners in an axially movable manner are respectively brought into contact with the pressure plates when one end of each of the lifter pins is capable of pushing the pressure plates against a spring biasing force of the clutch springs and one end of a drive pin having an axis thereof arranged parallel to the rotational axis of the first and second clutches and penetrating the clutch constituting member in an axially movable manner is connected to another end of one of the lifter pins which penetrates one clutch inner by way of a thrust bearing means.