| 摘要 |
PROBLEM TO BE SOLVED: To provide a stator structure of an automatic door linear motor which can cope with the change of a door weight, and further, even if the door is of a bottom door wheel type, facilitates the attachment and detachment of the door. SOLUTION: Three coil units 50-52 are stored in a case 1 on the stator side of a linear motor and a sufficient thrust force can be applied to a door even if the door is heavy. Further, the coil units 50-52 can be connected to each other with connection brackets being provided on both the longitudinal direction ends of the respective coil units 50-52. Since coil springs S which energize the connection brackets downward and keep the coil units 50-52 movable are provided between the connection brackets and case brackets 30-33 fixed to the case 1 even if the coil units 50-52 are provided close to the door by lifting up the door and moving the coil units 50-52 upward, the door can be detached easily. |
