Patent ID: 7967683

Claim:
A stabilizing mechanism for output torque of a transmission member, comprising: a transmission member including a force-input section and a force-output section which are separated from each other, the force-output section has an annular end section and a cylindrical outer cap body, the cylindrical outer cap body has a chucking hole with non-circular cross-section being formed at a bottom end of thereof and communicating with an interior of the annular end section, the chucking hole axially inward extending from the bottom end of the outer cap body by a predetermined depth; an engaging member positioned between the force-input section and the force-output section, the engaging member including a first engaging section and a second engaging section, the engaging member has a chucking column located on a first end thereof and the first engaging section located on a top end face of the force-input section, the second engaging section is located on a second end of the engaging member and located opposite the chucking column, the first engaging section and the second engaging section being engaged with each other by a predetermined engagement depth for transmitting force from the force-input section to the force-output section, the inner chucking column is coaxially slidably inserted into the chucking hole, the inner chucking column having a cross-sectional shape corresponding to a shape of the chucking hole; and a resilient member for providing resilient force to keep the first engaging section engaging the second engaging section, the resilient member being compressible under force, the resilient member having a compressible distance shorter than the engagement depth of the first engaging section and the second engaging section; wherein the compressible distance of the resilient member limiting a rotation of the first engaging section relative to the second engaging section; wherein the annular end section of the force-input section covering the resilient member, the first engaging section and the second engaging section.