Crown structure of zipper head

Abstract

A crown structure of zipper head includes a crown and a resilient sheet. A reception cavity is indented from a bottom surface of the crown. Two abutment portions are formed at the side portions of the bottom face of the reception cavity. A recess portion is defined between the two abutment portions. The crown includes a side wall elongated respectively along the lateral side of the crown. A passage is formed respectively at the mid section of the sidewall and communicates with the reception cavity. A stop portion is disposed on each lateral side of the crown and adjacent to the passage. The resilient sheet is disposed in the reception cavity and abuts the stop portions. The resilient sheet has a through hole at each end respectively, and two opposed troughs are formed at the mid section of the lateral sides of the resilient sheet.

1 . A crown structure of zipper head, comprising:
 a crown having a bottom surface indented in forming a reception cavity, two abutment portions being formed at the side portions of the reception cavity, a recess portion defined in between the abutment portions and the surface of the recess portion being lower than that of the abutment portion, a side wall being elongated respectively along the lateral side of the crown, a passage formed respectively at the mid section of the side wall and communicates with the reception cavity, a stop portion being disposed respectively on each side wall and adjacent to the passage; and   a resilient sheet disposed in the reception cavity and abutting the stop portions, the resilient sheet having a through hole at each end respectively in a closed configuration, a trough formed respectively on the corresponding mid section of the lateral side of the resilient sheet.   
     
     
         2 . The crown structure of zipper head according to  claim 1 , wherein the stop portions are formed by bending from the corresponding side wall toward the reception cavity. 
     
     
         3 . The crown structure of zipper head according to  claim 1 , wherein the recess portion is formed in between the two abutment portions and the two side walls. 
     
     
         4 . The crown structure of zipper head according to  claim 1 , wherein the two stop portions are set diagonally. 
     
     
         5 . The crown structure of zipper head according to  claim 1 , wherein the two through holes are fully slotted laterally in defining an open configuration. 
     
     
         6 . The crown structure of zipper head according to  claim 1 , wherein the resilient sheet has a V-shaped cross-sectional profile, and wherein the corners of the troughs are arched-shaped. 
     
     
         7 . The crown structure of zipper head according to  claim 1 , further comprising a plurality of apertures disposed on the side walls and communicates with the reception cavity. 
     
     
         8 . The crown structure of zipper head according to  claim 7 , further comprising two stop levers disposed in the reception cavity and engaged to the apertures. 
     
     
         9 . The crown structure of zipper head according to  claim 1 , further comprising two module plates disposed in the reception cavity and above the abutment portions.