Hair measurement tool

Abstract

To provide an index for objectively measuring length of hair or hair bundle, and enable accurate hair cut at a desired length. A hair measurement tool includes a plate-shaped elongated member. A curved concave part is formed at one end part of the member and scale lines are indicated on one surface of the member with intervals at 10 mm unit from the one end part. In the hair measurement tool, V-shaped notches are formed in both side surfaces corresponding to each position of the scale lines. The hair measurement tool is used for, by placing the one end part on a head, performing hair cut with hairdressing scissors positioned at the notch (position controlled) after measuring with the scale lines the hair (or hair bundle) picked from the head.

1 . A hair measurement tool, comprising:
 an elongated member where scale lines are indicated with intervals at a predetermined length unit from one end in a length direction thereof, and the elongated member is configured, by placing a one end part on a scalp, to be used for performing hair length measurements based on the scale lines, characterized in that   a concave part is formed in the one end part, and   a gap between the concave part and the scalp occurs by placing the one end part on the scalp so that both end parts in a width direction of the concave part contact with the scalp.   
     
     
         2 . A hair measurement tool, comprising:
 the concave part and the both end parts in the width direction of the concave part are formed so that a first imaginary straight line connecting the both end parts is inclined against the length direction of the elongated member.   
     
     
         3 . The hair measurement tool of  claim 2 , characterized in that
 a second concave part is formed in another end part in the length direction of the elongated member, and   the second concave part at the other end part and both end parts in the width direction of the second concave part at the other end part are formed so that a second imaginary straight line connecting the both end parts in a width direction of the second concave part at the other end part is inclined against the length direction of the elongated member, and   the second imaginary straight line is inclined against the length direction of the elongated member at an angle different from an inclination angle of the first imaginary straight line.   
     
     
         4 . The hair measurement tool of  claim 2 , characterized in that a plurality of angled lines indicating angles are indicated on the elongated member in a way that the angled lines cross each other. 
     
     
         5 . The hair measurement tool of  claim 3 , characterized in that a plurality of angled lines indicating angles are indicated on the elongated member in a way that the angled lines cross each other. 
     
     
         6 . The hair measurement tool of  claim 1 , characterized in that
 a plurality of angled lines indicating angles are indicated on the one end part of the elongated member, and   the elongated member is configured, by placing the one end part on the scalp, to be used for performing both hair length measurements based on the scale lines and hair direction measurements based on the angled lines.   
     
     
         7 . The hair measurement tool of  claim 1 , characterized in that a plurality of width scale lines indicating length in the width direction of the elongated member are indicated on the one end part of the elongated member. 
     
     
         8 . The hair measurement tool of  claim 6 , characterized in that a plurality of width scale lines indicating length in the width direction of the elongated member are indicated on the one end part of the elongated member. 
     
     
         9 . The hair measurement tool of  claim 1 , characterized in that an auxiliary concave part is formed at a peripheral part along the length direction of the elongated member,
 auxiliary angled lines, indicating angles at a peripheral part of the auxiliary concave part, are indicated on the elongated member, and   the elongated member is configured, by placing the peripheral part of the auxiliary concave part on the scalp, to be used for performing hair direction measurements based on the auxiliary angled lines.   
     
     
         10 . The hair measurement tool of  claim 6  characterized in that an auxiliary concave part is formed at a peripheral part along the length direction of the elongated member,
 auxiliary angled lines, indicating angles at a peripheral part of the auxiliary concave part, are indicated on the elongated member, and 
 the elongated member is configured, by placing the peripheral part of the auxiliary concave part on the scalp, to be used for performing hair direction measurements based on the auxiliary angled lines. 
 
     
     
         11 . The hair measurement tool of  claim 7 , characterized in that an auxiliary concave part is formed at a peripheral part along the length direction of the elongated member,
 auxiliary angled lines, indicating angles at a peripheral part of the auxiliary concave part, are indicated on the elongated member, and   the elongated member is configured, by placing the peripheral part of the auxiliary concave part on the scalp, to be used for performing hair direction measurements based on the auxiliary angled lines.   
     
     
         12 . The hair measurement tool of  claim 8 , characterized in that an auxiliary concave part is formed at a peripheral part along the length direction of the elongated member,
 auxiliary angled lines, indicating angles at a peripheral part of the auxiliary concave part, are indicated on the elongated member, and   the elongated member is configured, by placing the peripheral part of the auxiliary concave part on the scalp, to be used for performing hair direction measurements based on the auxiliary angled lines.