Importance

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Abstract

To provide a press nut being capable of easily attaching and detaching the nut to and from a bolt by linearly pressing the nut along the bolt and by linearly drawing the nut along the bolt a press nut 1 has a nut body 2 of plastic, tubular cap 3 of plastic to receive the nut body thereinto to connect the nut body thereto, and a cover 6 to axially move the nut body in relative to the cap. The nut body 2 comprises a base 13, two threaded portions 15 having threaded inner walls to form a nut as a whole, and spring portions 14 to force the respective threaded portions to press them up from the base. The nut body is housed in the cap in the manner that the threaded portions are adjacent to a flange 10 of the cap 3 and the base is adjacent to an opening of the cap. Both the nut body and the cap connected to the nut body can be axially moved to each other between a pressing position that the spring portions keep the tapered surfaces of the threaded portions in contact with a tapered surface of the cap to reduce the inner diameter of the screw formed by the threaded portions and a pulling-out position that the tapered surfaces of the threaded portions are away from the tapered surface of the cap to restore the inner diameter of the screw to a large diameter. The nut body can be axially moved with respect to the cap by means of the cover 6 held in hand.

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First Claim