| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic component mounting apparatus that has a mounting head with a plurality of nozzles arranged therein, that lengthens the life of an endless belt used in rotating the nozzles around a nozzle shaft (in a direction &thetas;), and that improves the accuracy of positioning the nozzles in the direction &thetas;.SOLUTION: A plurality of driving pulleys 14a and 14b are provided on a driving shaft 13a of a rotary motor 13. Endless belts 16a and 16b are respectively looped over the driving pulleys 14a and 14b and corresponding driven pulleys 15a and 15b. Only inner sides of the respective endless belts 16a and 16b have contact with the driving pulleys 14a and 14b and the driven pulleys 15a and 15b. Fixed idler pulleys for contact with outer sides of the respective endless belts 16a and 16b are not arranged. |
