Racket Frame and Racket

Abstract

A racket frame includes a face portion and a grip portion that are arranged side by side in a first direction. Face portion includes a first part including a first end located on a side opposite to grip portion in first direction and a second part including a second end located on a side of grip portion, second part being disposed apart from first part. A plurality of first through-holes that extend along first direction and are arranged at intervals in a second direction are formed in first part. The plurality of first through-holes include a first hole closest to a center of first part in second direction and a second hole located on an opposite side of the center with respect to first hole. In a third direction intersecting with first direction and second direction, a width of first hole is larger than a width of second hole.

1 . A racket frame comprising a face portion and a grip portion arranged side by side in a first direction, wherein
 the face portion includes a first part including a first end located on a side opposite to the grip portion in the first direction and a second part including a second end located on a side of the grip portion in the first direction, the second part being disposed apart from the first part,   a plurality of first through-holes that extend along the first direction and are disposed at intervals in a second direction perpendicular to the first direction are formed in the first part,   the plurality of first through-holes include a first hole closest to the first end in the second direction and a second hole located on a side opposite to the first end with respect to the first hole, and   a width of the first hole is wider than a width of the second hole in a third direction intersecting with the first direction and the second direction.   
     
     
         2 . The racket frame according to  claim 1 , wherein in the second direction, a distance between an imaginary line passing through the first end and the second end and the first hole is shorter than a half of a distance between the first hole and the second hole. 
     
     
         3 . The racket frame according to  claim 1 , wherein
 the plurality of first through-holes further include a third hole located on a side opposite to the first hole with respect to the second hole and a fourth hole located on a side opposite to the first hole with respect to the third hole, and   a width of the fourth hole is wider than a width of the third hole in the third direction.   
     
     
         4 . The racket frame according to  claim 3 , wherein a distance between the second hole and the third hole in the second direction is shorter than a distance between the first hole and the second hole and a distance between the third hole and the fourth hole. 
     
     
         5 . The racket frame according to  claim 1 , wherein
 a plurality of second through-holes that extend along the first direction and are disposed at intervals in the second direction are formed in the second part, and   the width of the first hole is wider than a width of each of the plurality of second through-holes in the third direction.   
     
     
         6 . A racket comprising:
 the racket frame according to  claim 1 ; and   a string that is pitched over the face portion and includes a plurality of main string portions extending along the first direction between the first part and the second part, wherein   the string passes through the plurality of first through-holes, and is folded back outside the first hole and the second hole between the first hole and the second hole.   
     
     
         7 . The racket according to  claim 6 , wherein the string passes through two second through-holes of the plurality of second through-holes between the second hole and the third hole. 
     
     
         8 . A racket comprising:
 a face portion arranged side by side in a first direction;   a grip portion; and   a string that is pitched over the face portion, wherein   the face portion includes a first part including a first end located on a side opposite to the grip portion in the first direction and a second part including a second end located on a side of the grip portion in the first direction, the second part being disposed apart from the first part,   a plurality of first through-holes that extend along the first direction and are disposed at intervals in a second direction perpendicular to the first direction are formed in the first part,   the plurality of first through-holes include a first hole closest to the first end in the second direction, a second hole located on a side opposite to the first end with respect to the first hole, a third hole located on a side opposite to the first hole with respect to the second hole, and a fourth hole located on a side opposite to the first hole with respect to the third hole,   a width of the first hole is wider than a width of the second hole in a third direction intersecting with the first direction and the second direction,   the string includes a plurality of main string portions extending along the first direction between the first part and the second part,   the string passes through the plurality of first through-holes, and   in the second direction, a distance between the main string portion passing through the first hole and the main string portion passing through the second hole is longer than a distance between the main string portion passing through the second hole and the main string portion passing through the third hole.   
     
     
         9 . The racket frame according to  claim 2 , wherein
 the plurality of first through-holes further include a third hole located on a side opposite to the first hole with respect to the second hole and a fourth hole located on a side opposite to the first hole with respect to the third hole, and   a width of the fourth hole is wider than a width of the third hole in the third direction.   
     
     
         10 . The racket frame according to  claim 9 , wherein a distance between the second hole and the third hole in the second direction is shorter than a distance between the first hole and the second hole and a distance between the third hole and the fourth hole. 
     
     
         11 . The racket frame according to  claim 2 , wherein
 a plurality of second through-holes that extend along the first direction and are disposed at intervals in the second direction are formed in the second part, and   the width of the first hole is wider than a width of each of the plurality of second through-holes in the third direction.   
     
     
         12 . The racket frame according to  claim 3 , wherein
 a plurality of second through-holes that extend along the first direction and are disposed at intervals in the second direction are formed in the second part, and   the width of the first hole is wider than a width of each of the plurality of second through-holes in the third direction.   
     
     
         13 . The racket frame according to  claim 4 , wherein
 a plurality of second through-holes that extend along the first direction and are disposed at intervals in the second direction are formed in the second part, and   the width of the first hole is wider than a width of each of the plurality of second through-holes in the third direction.   
     
     
         14 . The racket frame according to  claim 9 , wherein
 a plurality of second through-holes that extend along the first direction and are disposed at intervals in the second direction are formed in the second part, and   the width of the first hole is wider than a width of each of the plurality of second through-holes in the third direction.   
     
     
         15 . The racket frame according to  claim 10 , wherein
 a plurality of second through-holes that extend along the first direction and are disposed at intervals in the second direction are formed in the second part, and   the width of the first hole is wider than a width of each of the plurality of second through-holes in the third direction.   
     
     
         16 . A racket comprising:
 the racket frame according to  claim 2 ; and   a string that is pitched over the face portion and includes a plurality of main string portions extending along the first direction between the first part and the second part, wherein   the string passes through the plurality of first through-holes, and is folded back outside the first hole and the second hole between the first hole and the second hole.   
     
     
         17 . A racket comprising:
 the racket frame according to  claim 3 ; and   a string that is pitched over the face portion and includes a plurality of main string portions extending along the first direction between the first part and the second part, wherein   the string passes through the plurality of first through-holes, and is folded back outside the first hole and the second hole between the first hole and the second hole.   
     
     
         18 . A racket comprising:
 the racket frame according to  claim 4 ; and   a string that is pitched over the face portion and includes a plurality of main string portions extending along the first direction between the first part and the second part, wherein   the string passes through the plurality of first through-holes, and is folded back outside the first hole and the second hole between the first hole and the second hole.   
     
     
         19 . A racket comprising:
 the racket frame according to  claim 5 ; and   a string that is pitched over the face portion and includes a plurality of main string portions extending along the first direction between the first part and the second part, wherein   the string passes through the plurality of first through-holes, and is folded back outside the first hole and the second hole between the first hole and the second hole.   
     
     
         20 . A racket comprising:
 the racket frame according to  claim 9 ; and   a string that is pitched over the face portion and includes a plurality of main string portions extending along the first direction between the first part and the second part, wherein   the string passes through the plurality of first through-holes, and is folded back outside the first hole and the second hole between the first hole and the second hole.