Adapter coupling device

专利名称：Adapter coupling device发明人：Daniel Huang申请号：US12385222申请日：20090402公开号：US07891275B2公开日：20110222

专利附图：

摘要：An adapter coupling device includes an adapter having a polygonal recess forreceiving a bit therein and a radial hole is defined in an outer periphery of the adapter soas to receive a bead therein. A spring and a positioning block are received in the adapterand the positioning block includes stepped receiving space and an outer surface. An

outer sleeve is mounted to the adapter and a spring is located therebetween. The outersleeve has a annular groove and an inclined inner surface defined in the inner peripherythereof, wherein the inclined inner surface has a maximum inclination of 30 degreesrelative to an axis of the outer sleeve. The bit can be inserted into the polygonal recessof the adapter by one hand without pushing the outer sleeve upward. The inclined innersurface of the outer sleeve pushes the bead to position the bit.

申请人：Daniel Huang

地址：P.O. Box 44-2049 Taipei 10668 TW

国籍：TW

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