| 摘要 |
PROBLEM TO BE SOLVED: To provide a seat weight measuring device that can stabilize sensitivity in a load sensor and is not easily affected by heat. SOLUTION: Four strain resistors 54a, 54b, 54c, and 54d are provided on a sensor plate 51 each at equal distances from a center O of a joining tool 69. Additionally, four holes 72, 73, 74, and 75 are punched each on the center plate 51 located near the bonding position (the mounting position) of two strain resistors 54b, 54c. By the holes 72, 73, 74, and 75, the sectional area of a section at a hole formation portion on the sensor plate 51 is reduced and the sensor plate 51 at the bonding position of the strain resistors 54a, 54b, 54c, and 54d is easily deflected (strained), thus making the measurement of load by the strain resistors 54a, 54b, 54c, and 54d reliable. COPYRIGHT: (C)2005,JPO&NCIPI |
