Patent ID: 8099745
Filing Date: 2012-01-17
Classification: G11B

Abstract:
1. A holding device that detachably holds a to-be-held object having a hole substantially at the center thereof, the device comprising: a substantially cylindrical support to be inserted into the hole; a positioning portion located on an outside of the hole in which the support is inserted, a portion around a periphery of the hole being adapted to be in contact with the positioning portion; a concave portion provided on the support, the concave portion extending in a radial direction of the support so that both ends are opened on the circumference of the support; a moving member provided on the concave portion in a manner movable along the radial direction of the support; a first engaging portion provided on the support at a position opposed to the positioning portion with the to-be-held object interposed therebetween when the support is inserted into the hole, the first engaging portion engaging the periphery of the hole in cooperation with the positioning portion; and a second engaging portion provided on the moving member at a position opposed to the positioning portion with the to-be-held object interposed therebetween when the support is inserted into the hole, the second engaging portion engaging with the periphery of the hole in cooperation with the positioning portion, wherein when the support and the moving member are inserted into the hole, the second engaging portion moves relative to the first engaging portion to be brought into contact with the periphery of the hole to engage the hole in cooperation with the positioning portion.