Patent attributes
A clutch includes a first transmission member, a second transmission member, at least one abutting member, a control base and an engaging member. The second transmission member is movably connected to the first transmission member. The at least one abutting member is movably mounted between the first transmission member and the second transmission member. The control base provides a limited space. The engaging member is movably mounted in the limited space. Wherein, the engaging member is not engaged with the second transmission member when the control base is in a first state relative to the second transmission member. Wherein, the engaging member is engaged with the second transmission member when the control base is in a second state relative to the second transmission member.