Patent ID: 7895733
Filing Date: 2011-03-01
Classification: B23P,Y10T

Abstract:
1. A screwing apparatus comprising: a support member having a horizontal support surface; a single urging member having an urging surface opposed to the support surface, the urging surface being parallel to the support surface; a driving mechanism configured to drive at least one of the support member and the urging member to move to change a distance between the support member and the urging member; and driver bits having tip ends opposed to the support surface, respectively, the driver bits each driven to move toward and away from the urging surface, wherein through holes are formed in the urging member to receive the driver bits, respectively, and inward flanges are formed on an inner surface of each of the through holes, an inner diameter of the inward flanges being set smaller than an outer diameter of a sleeve receiving a respective one of the driver bits therein.