Self-Locking Fastener

Abstract

A self-locking fastener includes a base member and a clip member. The base member includes a buckle base, a buckle point and a buckle pin. The clip member includes a plurality of resilient locking arms disposed toward one side thereof. When the clip member is coupled to the base member, the buckle point of the base member extends out along the resilient locking arms. The resilient locking arms are fitted on the buckle pin. Free ends of the resilient locking arms lean against the inner end of the buckle point to stop the buckle point from sliding out along the resilient locking arms. Through the resilient locking arms and the buckle point, the free ends of the resilient locking arms are to lean against the inner end of the buckle point to achieve a self-locking connection of the base member and the clip member. The structure of present invention is simple. When packing a product, the two sheets of material are only required to have holes. The buckle point is inserted through the holes and coupled to the clip member so as to fix the two sheets of material. When detached, the connection of the buckle point and the buckle pin is cut off so as to detach the base member from the clip member. It is easy and convenient to use and operate the present invention, without the need to use a special apparatus. This can lower the packing cost.

1 . A self-locking fastener comprising a base member and a clip member, the base member comprising a buckle base, a buckle point and a buckle pin which is connected between the buckle base and the buckle point, the clip member comprising a plurality of resilient locking arms disposed toward one side thereof, the plurality resilient locking arms being used to lean against an inner end of the buckle point, wherein when the clip member is coupled to the base member, the buckle point of the base member extends out along the resilient locking arms, the resilient locking arms are fitted on the buckle pin, and free ends of the resilient locking arms lean against the inner end of the buckle point to stop the buckle point from sliding out along the resilient locking arms. 
     
     
         2 . The self-locking fastener as claimed in  claim 1 , wherein the clip member has a through hole, the resilient locking arms being tilted from an inner edge of the through hole toward the same side of the clip member, the free ends of the resilient locking arms surrounding the through hole to define a passage for insertion of the buckle point. 
     
     
         3 . The self-locking fastener as claimed in  claim 2 , wherein the resilient locking arms each have a curved guide surface. 
     
     
         4 . The self-locking fastener as claimed in  claim 2 , wherein the resilient locking arms are tilted in a fan-shaped configuration, and the joint of the resilient locking arms and the inner edge of the through hole is gradually narrowed. 
     
     
         5 . The self-locking fastener as claimed in  claim 2 , wherein the buckle point is a sphere. 
     
     
         6 . The self-locking fastener as claimed in  claim 1 , wherein gaps are formed between the abutted resilient locking arms to reinforce deformation of the resilient locking arms. 
     
     
         7 . The self-locking fastener as claimed in  claim 1 , wherein the buckle pin has a base portion and a connection portion which extends from the base portion and is tapered toward the buckle point, the base portion being integrally formed with the buckle base, the connection portion being connected with the buckle point, the joint of the connection portion and the buckle point having a width smaller than that of the buckle point, the buckle point having an engaging portion at the inner end thereof for the resilient locking arms to lean against thereat. 
     
     
         8 . The self-locking fastener as claimed in  claim 7 , wherein the base portion has a plurality of reinforcement ribs extending from an outer wall thereof. 
     
     
         9 . The self-locking fastener as claimed in  claim 1 , wherein the base member and the clip member are made of plastic.