Structure of curtain

Abstract

A structure of a curtain includes a main curtain body having a beam, a curtain sheet with an end coupled to the beam, and transversal rods installed onto the curtain sheet, first latches installed separately at another end of the curtain sheet, second latches installed separately onto each transversal rod, an ascending/descending unit coupled to the main curtain body and including a winding/unwinding shaft on a side of the beam, a pull string with an end coupled to the first latch, passed through the second latch, and connected to the winding/unwinding shaft, and a chain for transmitting the winding/unwinding shaft, and a third latch installed onto the chain. If a too-large force is applied to the pull string or chain, the first, second and third latches will be separated to prevent the pull string or chain from being wound around a human body and achieve a higher safety effect.

1 . A structure of a curtain, comprising:
 a main curtain body, including a beam, a curtain sheet with an end coupled to the beam, and a plurality of transversal rods installed onto the curtain sheet;   a plurality of first latches, installed separately at another end of the curtain sheet;   a plurality of second latches, installed separately onto each transversal rod;   an ascending/descending unit, coupled to the main curtain body, and including a winding/unwinding shaft installed on a side of the beam, a pull string with an end coupled to the first latch, passed through the second latch, and connected to the winding/unwinding shaft, and a chain for transmitting the winding/unwinding shaft; and   a third latch, installed onto the chain.   
     
     
         2 . The structure of a curtain as recited in  claim 1 , wherein the beam includes a plurality of support frames for passing the pull string. 
     
     
         3 . The structure of a curtain as recited in  claim 1 , wherein the curtain sheet includes a weight portion disposed at another end of the curtain sheet. 
     
     
         4 . The structure of a curtain as recited in  claim 1 , wherein the curtain sheet includes a plurality of sheath portions formed on a side of the curtain sheet, and each transversal rod is installed into each respective sheath portion. 
     
     
         5 . The structure of a curtain as recited in  claim 1 , wherein each first latch includes a latch base disposed at another end of the curtain sheet, and a latch portion movably latched with the latch base, and each latch portion includes a fixing hole formed at another end of each latch portion for connecting the pull string. 
     
     
         6 . The structure of a curtain as recited in  claim 1 , wherein each second latch includes a clamp portion formed at an end of each second latch, and a through hole formed at another end of each second latch and provided for passing and connecting the pull string. 
     
     
         7 . The structure of a curtain as recited in  claim 1 , wherein the third latch includes a pair of connectors movably engaged with each other, and an end of each pair of connectors is coupled to the chain.