Buckle

Abstract

A buckle of the present invention includes a male member (A) and a female member (B). The male member includes: a base ( 10 ); a pair of legs ( 20 ) that project from the base; and engaging portions ( 25 ) that are provided on the legs and are engageable with the female member. The base includes a projecting portion ( 14 ) that projects in a projecting direction of the legs. A recess ( 15 ) is formed on a front or rear surface of the projecting portion. The recess ( 15 ) includes a front end ( 15 A) and a rear end ( 15 B) in an inserting direction of the male member (A). The front end substantially has the same height as the front surface of the base. The rear end is substantially lower than any other position on a surface connecting the front end and the rear end.

1 . A buckle, comprising:
 a male member; and   a female member in which the male member is inserted to be engaged, wherein the male member includes: a base to which a string member can be attached; a pair of legs that project from the base; and engaging portions that are provided on the pair of legs and are engageable with the female member,   the base includes a projecting portion that projects in a projecting direction of the legs from a side on which the pair of legs project,   recesses are formed on front and rear surfaces of the projecting portion, and   at least one of the recesses includes: a front end and a rear end in an inserting direction of the male member, the front end substantially having the same height as that of a front surface or a rear surface of the base, the rear end being substantially lower than any other position on a surface connecting the front end and the rear end.   
   
   
       2 . The buckle according to  claim 1 , wherein
 the female member includes an expanding portion that accommodates the projecting portion on an insertion opening in which the male member is inserted.   
   
   
       3 . The buckle according to  claim 2 , wherein
 a string attachment hole in which the string member is inserted is formed in the base in the vicinity of the projecting portion, and   the string attachment hole is continuous with a dented space defined by the recess of the projecting portion.   
   
   
       4 . The buckle according to  claim 2 , wherein
 the projecting portion and the expanding portion are respectively provided on both of the front and rear surfaces of the male member and the female member.   
   
   
       5 . The buckle according to  claim 2 , wherein
 the recess of the projecting portion has a curved surface.   
   
   
       6 . The buckle according to  claim 2 , wherein
 the recess of the projecting portion is arranged such that the substantially middle position in a width direction on the rear end of the male member is located at a lower position than any other position on the recess, the recess gradually becoming higher from the lower position toward the front end, forming a curved surface.   
   
   
       7 . The buckle according to  claim 2 , wherein
 recesses are formed on the front and rear surfaces of the female member on the opposite side of the inserting opening.   
   
   
       8 . The buckle according to  claim 2 , wherein
 a front end of the recess is arc-shaped.   
   
   
       9 . The buckle according to  claim 2 , wherein
 a guide groove is formed in confronting surfaces extending from the respective engaged portions to the expanding portion of the female member, the guide groove guiding the engaging portions provided on the legs of the male member to the engaged portions of the female member.   
   
   
       10 . A buckle, comprising:
 a male member; and   a female member in which the male member is inserted to be engaged, wherein the male member includes: a base to which a string member can be attached; a pair of legs that project from the base; and engaging portions that are provided on the pair of legs and are engageable with the female member,   the base includes a projecting portion that projects in a projecting direction of the legs from a side on which the pair of legs project,   the female member includes an expanding portion that accommodates the projecting portion on an insertion opening in which the male member is inserted, and   at least a confronting surface of the projecting portion out of confronting surfaces of the projecting portion and the expanding portion is arc-shaped and the projecting portion is concaved.