Fastener stop structure and fastener

Abstract

A fastener stop structure includes a first stop portion and a second stop portion. An inner lateral surface of the first stop portion facing the second stop portion is provided with a protruding portion. A size of a portion of the first stop portion where the protruding portion is disposed in a width direction is greater than a size of an element channel of the slider used in a fastener chain in the width direction, and the protruding portion is disposed at a distance from a front end edge of the first stop portion in a length direction. The fastener includes the fastener chain, the slider, and the fastener stop structure. When the slider slides on a pair of element columns along the length direction, the first stop portion and the second stop portion of the fastener stop structure are able to enter the pair of element channels.

What is claimed is: 
     
         1 . A fastener stop structure ( 100 ), suitable for being installed at an end portion in a length direction (L) of a pair of element columns ( 54 ) disposed in a fastener chain ( 50 ), and comprising:
 a first stop portion ( 110 ), installed at an end portion in the length direction (L) of one of the pair of element columns ( 54 ); and   a second stop portion ( 120 ), installed at an end portion in the length direction (L) of the other of the pair of element columns ( 54 ) and is disposed adjacent to the first stop portion ( 110 ), wherein   an inner lateral surface (S) of the first stop portion ( 110 ) facing the second stop portion ( 120 ) is provided with a protruding portion ( 112 ),   a size (W 1 ) of a portion of the first stop portion ( 110 ) where the protruding portion ( 112 ) is disposed in a width direction (W) is greater than a size (W 2 ) of an element channel ( 64 ) of the slider ( 60 ) used in the fastener chain ( 50 ) in the width direction (W),   the first stop portion ( 110 ) and the second stop portion ( 120 ) each have a front end edge (E 11 , E 21 ) in a sliding direction in which the slider ( 60 ) engages the pair of element columns ( 54 ), and a rear end edge (E 12 , E 22 ) in a sliding direction in which the slider ( 60 ) separates the pair of element columns ( 54 ), and   the protruding portion ( 112 ) is disposed at a distance (D 1 ) from the front end edge (E 11 ) of the first stop portion ( 110 ) in the length direction (L).   
     
     
         2 . The fastener stop structure ( 100 ) according to  claim 1 , wherein:
 the inner lateral surface (S) of the first stop portion ( 110 ) facing the second stop portion ( 120 ) is provided with a concave portion ( 114 ),   the concave portion ( 114 ) is located between the front end edge (E 11 ) of the first stop portion ( 110 ) and the protruding portion ( 112 ), and   a shape of the concave portion ( 114 ) corresponds to a shape of a guiding post ( 62 ) disposed on the slider ( 60 ) used in the fastener chain ( 50 ).   
     
     
         3 . The fastener stop structure ( 100 ) according to  claim 2 , wherein:
 the concave portion ( 114 ) has a first lateral surface ( 114   a ) close to the front end edge (E 11 ) and a second lateral surface ( 114   b ) close to the protruding portion ( 112 ),   an obtuse angle (θ) is formed between the first lateral surface ( 114   a ) and the second lateral surface ( 114   b ).   
     
     
         4 . The fastener stop structure ( 100 ) according to  claim 3 , wherein:
 the second lateral surface ( 114   b ) of the concave portion ( 114 ) is inclined toward the rear end edge (E 12 ) of the first stop portion ( 110 ) relative to a level baseline (P) extending in the width direction (W).   
     
     
         5 . The fastener stop structure ( 100 ) according to  claim 1 , wherein:
 the front end edge (E 11 ) of the first stop portion ( 110 ) and the front end edge (E 21 ) of the second stop portion ( 120 ) are each configured in a linear shape extending in the width direction (W), and are aligned in the width direction (W).   
     
     
         6 . The fastener stop structure ( 100 ) according to  claim 1 , wherein:
 an end portion of the protruding portion ( 112 ) closest to the second stop portion ( 120 ) in the width direction (W) is a rounded chamfer.   
     
     
         7 . The fastener stop structure ( 100 ) according to  claim 1 , wherein:
 the protruding portion ( 112 ) is closer to the front end edge (E 11 ) of the first stop portion ( 110 ) in the length direction (L) than to a middle portion of the first stop portion ( 110 ).   
     
     
         8 . The fastener stop structure ( 100 ) according to  claim 7 , wherein:
 the distance (D 1 ) between the protruding portion ( 112 ) and the front end edge (E 11 ) in the length direction (L) is between 1/10 and ⅖ of a size of the first stop portion ( 110 ) in the length direction (L).   
     
     
         9 . The fastener stop structure ( 100 ) according to  claim 1 , wherein:
 the protruding portion ( 112 ) protrudes further toward the second stop portion ( 120 ) than a centerline (C) of the pair of element columns ( 54 ).   
     
     
         10 . A fastener ( 20 ), comprising:
 a fastener chain ( 50 ), comprising a pair of fastener tapes ( 52 ) and a pair of element columns ( 54 ) disposed on inner edges of the pair of fastener tapes ( 52 ) and facing each other;   a slider ( 60 ), installed at the fastener chain ( 50 ) and having a guiding post ( 62 ) and a pair of element channels ( 64 ) located on two opposite sides of the guiding post ( 62 ); and   a fastener stop structure ( 100 ) according to  claim 1 , installed at the end portion in a length direction (L) of the pair of element columns ( 54 ), wherein   when the slider ( 60 ) slides on the pair of element columns ( 54 ) along the length direction (L), the pair of element columns ( 54 ) pass through the pair of element channels ( 64 ), and the first stop portion ( 110 ) and the second stop portion ( 120 ) of the fastener stop structure ( 100 ) are able to enter the pair of element channels ( 64 ).