Title:
MOTOR-DRIVEN GATE DOOR DRIVING DEVICE
Document Type and Number:
Japanese Patent JP3857675
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely transmit driving force for automatic opening-closing, even when a gate door is thermally deformed, in the gate door curvedly formed in a circular arc shape of traveling on a circular arc-shaped rail.
SOLUTION: This motor-driven gate door driving device has a gear motor 21 for moving a plurality of wheels 17 arranged in a frame 12 curvedly formed in a circular arc shape, in the horizontal direction for opening and closing, by traveling on the rail 18 laid in the circular arc shape. A pair of sprockets 25A and 25B meshing at a predetermined interval with a pin gear 26 attached to the total length of a gate door inside frame, are arranged in parallel in a holder 35 supported by a motor shaft 32. The driving force is transmitted by winding the pair of these sprockets and a first sprocket 22 supported by the motor shaft by a transmission chain, and is guided while rotating by following the movement of the frame by two guide rollers 64A and 64B arranged so as to sandwich both sides of the frame, and contacting with one frame side surface, and a caster 65 contacting with an opposite side frame side surface.
Inventors:
Tokioka Man
Application Number:
JP2003338801A
Publication Date:
December 13, 2006
Filing Date:
September 29, 2003
Export Citation:
Assignee:
Kaikoubo Co., Ltd.
International Classes:
E05F15/14; E06B11/02; (IPC1-7): E05F15/14; E06B11/02
Domestic Patent References:
| JP62182400U | ||||
| JP11036704A | ||||
| JP62276189A | ||||
| JP1168782U |
Attorney, Agent or Firm:
Yoshinao Nakano