Band and biological information measurement device

Abstract

A band for mounting a device main body includes first and second band portions which are connected to device main body, wherein the ratio between the widths of the first band portion and the second band portion in a second direction intersecting a first direction in which the first band portion and the second band portion extend from the device main body and the width of the device main body in the second direction is greater than or equal to 0.5 and less than or equal to 1.4.

What is claimed is: 
     
         1 . A band for mounting a device main body, comprising:
 first and second band portions which are connected to a device main body,   wherein a ratio between widths of the first band portion and the second band portion in a second direction intersecting a first direction in which the first band portion and the second band portion extend from the device main body and a width of the device main body in the second direction is greater than or equal to 0.5 and less than or equal to 1.4.   
     
     
         2 . The band according to  claim 1 , further comprising:
 a connection portion which is provided at an end portion of the first band portion on the opposite side to the device main body and connects the first band portion and the second band portion; and   a hook portion which is provided at an end portion of the second band portion on the opposite side to the device main body and locks the second band portion to the first band portion.   
     
     
         3 . The band according to  claim 2 , wherein belt portions having stretchability are provided between an end portion of the first band portion, which is connected to the device main body, and the connection portion and between an end portion of the second band portion, which is connected to the device main body, and the hook portion. 
     
     
         4 . The band according to  claim 3 , wherein in the belt portions, hole portions in which the connection portion or the hook portion is inserted are provided in parallel in the second direction and to form rows in the first direction. 
     
     
         5 . The band according to  claim 4 , wherein each of the hole portions has first and second holes provided coaxially,
 each of the first hole and the second hole has an elliptical shape having a short axis in the first direction and a long axis in the second direction, and   lengths of the short axis and the long axis of the second hole are larger than lengths of the short axis and the long axis of the first hole.   
     
     
         6 . The band according to  claim 3 , wherein in the rows of the hole portions of the first band portion, a distance between a row closest to the device main body side and a row adjacent thereto is narrower than a distance between a row closest to the connection portion side and a row adjacent thereto. 
     
     
         7 . The band according to  claim 3 , wherein in the rows of the hole portions of the second band portion, a distance between a row closest to the device main body side and a row adjacent thereto is narrower than a distance between a row closest to the hook portion side and a row adjacent thereto. 
     
     
         8 . The band according to  claim 2 , wherein the first band portion has a thick portion,
 the connection portion is provided at the thick portion and
 includes a band insertion hole in which the second band portion is inserted, and 
   a projecting bar which is pivotally supported on one side of the band insertion hole, which extends in the second direction, and is inserted into the hole portion provided in the second band portion, and   the band insertion hole is provided such that a side extending in the second direction, which faces the one side on which the projecting bar is pivotally supported, is long.   
     
     
         9 . The band according to  claim 2 , wherein the hook portion is provided with a base portion and a pin portion extending from the base portion, and
 the pin portion has a first shaft portion extending from the base portion, and a second shaft portion extending from the first shaft portion.   
     
     
         10 . The band according to  claim 7 , wherein in the pin portion,
 a first head portion having a larger diameter than the first shaft portion is provided at the first shaft portion, and   a second head portion having a larger diameter than the second shaft portion is provided at the second shaft portion.   
     
     
         11 . The band according to  claim 7 , wherein a length of the second shaft portion in a third direction in which the pin portion extends from the base portion is approximately the same as a depth of the first hole, and a length of the second head portion in the third direction is approximately the same as a depth of the second hole. 
     
     
         12 . The band according to  claim 8 , wherein the second shaft portion and the second head portion have an elliptical shape having a short axis in the first direction and a long axis in the second direction, and in a case where the second head portion and the first hole are viewed in plan from the third direction, an area of the second head portion is larger than an area of the first hole. 
     
     
         13 . The band according to  claim 8 , wherein the second shaft portion and the second head portion have an elliptical shape having a short axis in the first direction and a long axis in the second direction, and the long axis and the short axis of the second head portion are larger than the long axis and the short axis of the first hole. 
     
     
         14 . The band according to  claim 8 , wherein each of the first head portion and the second head portion has a curved surface in the opposite direction to a direction in which the base portion is provided. 
     
     
         15 . The band according to  claim 8 , wherein in the belt portions, a thickness in the third direction is approximately the same as a value obtained by adding a length of the second shaft portion and a length of the second head portion. 
     
     
         16 . The band according to  claim 3 , wherein in the first band portion and the second band portion, the belt portions are made of a material which has stretchability and includes polyurethane resin or silicone resin. 
     
     
         17 . A biological information measurement device comprising:
 the band according to  claim 1 ; and   a device main body on which the band is mounted.   
     
     
         18 . A biological information measurement device comprising:
 the band according to  claim 2 ; and   a device main body on which the band is mounted.   
     
     
         19 . A biological information measurement device comprising:
 the band according to  claim 3 ; and   a device main body on which the band is mounted.   
     
     
         20 . A biological information measurement device comprising:
 the band according to  claim 4 ; and   a device main body on which the band is mounted.