| 摘要 |
PROBLEM TO BE SOLVED: To accurately measure the temperature of ready-mixed concrete agitated in a mixer drum, by preventing the ready-mixed concrete inputted to the mixer drum from being splashed on a temperature detector.SOLUTION: A truck mixer 100 comprises a mixer drum 2 capable of mounting ready-mixed concrete, and comprises a drum opening part 2A opening in the mixer drum 2, a hopper 16 for guiding the ready-mixed concrete inputted to the drum opening part 2A, a sensor 25 (a temperature detector) for measuring the temperature of the ready-mixed concrete in the mixer drum 2 in a noncontact state and a support mechanism 40 for movably supporting the sensor 25 to a measurement position facing to the inside of the mixer drum 2 by being inserted inside the hopper 16 from a refuge position provided on the outside of the hopper 16.SELECTED DRAWING: Figure 1B |
