| 摘要 |
A novel quick release fastener system for efficient and reliable attachment, disengagement and reattachment of components secured by the fastener system. The fastener system includes an elongated fastener having a shank, a drive structure on one end, an opposite end of which having a threaded portion. The fastener system also includes an expandable nut body which is engaged with the threaded portion of the fastener, which nut body is adapted to be engaged in a bore. Nut spreading structures are provided on the nut member and the fastener which spread or expand the nut when the fastener is rotated and engaged axially of the nut member. The nut is initially retained on the threaded portion of the fastener with the nut spreading structures disengaged. A work piece is provided with a bore for receiving the expandable nut body. A key is provided in the bore and a slot is provided in the nut body being sized and dimensioned for receiving the key therein. The slot allows the nut body to expand with the key engaged in the slot preventing the nut body from rotating in the bore. Nominal rotation of the fastener relative to the nut results in engaging of the nut spreading structures on the fastener and nut to expand the nut body and thereby forcibly contact and engage abutting inside surfaces of the bore. The fastener system is particularly useful in attaching wheel assemblies to an in-line skate and for attaching cleats to footwear, or similar such assembly or fastener uses. |
