| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic revolving door capable of reducing an impact when an object is pinched between a door body and a side piece of an entrance section. <P>SOLUTION: A drive unit 5 is equipped with a control motor 5a for outputting torque required so that the door body 4 can be revolved at a preset and predetermined speed. A control section 6 of the drive unit 5 comprises a position detecting means 6a for detecting a revolving position of the door body 4, and a torque limiting means 6b for setting a torque upper-limit value of the control motor 5a depending on the revolving state of the door body 4 and for limiting the torque so as not to output the torque beyond the torque upper-limit value. Thus, the torque upper-limit value is set to be lowered in a state in which arbitrary partition panels 4b, 4c, 4d and 4e of the door body 4 are revolved in a set area P getting closer to the side piece 3 on the revolving-direction leading-end side of the door body 4 in the entrance sections 2a and 2b. <P>COPYRIGHT: (C)2009,JPO&INPIT |
