Tie Down Apparatus

Abstract

A tie down apparatus comprising a base, a biasing element, a torsion spring, and a shaft, wherein the base is die cast or plastic rejection molded and includes two side plates disposed on two sides thereof respectively, and between one ends of the side plates is mounted an engaging pillar, between another ends of the side plates is fixed a retaining member, between middle sections of the side plates is secured an abutting shank, the biasing element matches with the torsion spring and is axially fixed between the two side plates of the base by using the shaft, and is die cast or plastic rejection molded, and includes a contacting portion having a pressing piece extending from one side thereof, thereby cooling quickly after die casting or plastic rejection molding process to lower production time and cost, and enabling to decrease production material and cost.

1 . A tie down apparatus comprising:
 a base, a biasing element, a torsion spring, and a shaft, wherein the base is die cast or plastic rejection molded and includes two side plates disposed on two sides thereof respectively, and between one ends of the side plates is mounted an engaging pillar, between another ends of the side plates is fixed a retaining member, between middle sections of the side plates is secured an abutting shank, the biasing element matches with the torsion spring and is axially fixed between the two side plates of the base by using the shaft, and is die cast or plastic rejection molded, and includes a contacting portion having a pressing piece extending from one side thereof;   wherein the engaging pillar of the base is hollow.   
     
     
         2 . A tie down apparatus comprising:
 a base, a biasing element, a torsion spring, and a shaft, wherein the base is die cast or plastic rejection molded and includes two side plates disposed on two sides thereof respectively, and between one ends of the side plates is mounted an engaging pillar, between another ends of the side plates is fixed a retaining member, between middle sections of the side plates is secured an abutting shank, the biasing element matches with the torsion spring and is axially fixed between the two side plates of the base by using the shaft, and is die cast or plastic rejection molded, and includes a contacting portion having a pressing piece extending from one side thereof;   wherein each side plate of the base is provided a recess thereon.   
     
     
         3 . The tie down apparatus as claimed in  claim 2 , wherein the recess is provided on an outer side of the side plate. 
     
     
         4 . A tie down apparatus comprising:
 a base, a biasing element, a torsion spring, and a shaft, wherein the base is die cast or plastic rejection molded and includes two side plates disposed on two sides thereof respectively, and between one ends of the side plates is mounted an engaging pillar, between another ends of the side plates is fixed a retaining member, between middle sections of the side plates is secured an abutting shank, the biasing element matches with the torsion spring and is axially fixed between the two side plates of the base by using the shaft, and is die cast or plastic rejection molded, and includes a contacting portion having a pressing piece extending from one side thereof;   wherein the contacting portion of the biasing element has two bores.