Patent ID: 7623813

Claim:
A bearing structure for a drive mechanism comprising: a frame including a first hole that includes at least one flat portion; a bearing member including at least one second flat portion which has a shape that corresponds to the at least one flat portion that is fit into the first hole, the bearing member having a second hole for inserting a drive shaft that is driven by a drive motor; and a crimp provided between the bearing member and the first hole, which crimps the bearing member in the first hole, wherein the crimp is made of elastic material and is configured to suppress rattling of the bearing member within the first hole, wherein the crimp has a third hole for inserting the bearing member and the drive shaft, and wherein the crimp includes at least one protrusion, which has a shape that corresponds to the at least one flat portion, extending inwardly into the third hole that interferes with the bearing member when the bearing member is inserted in the third hole in the crimp, and the at least one protrusion extends within the first hole between the at least one second flat portion of the bearing member and the at least one flat portion of the first hole.