Title:
CROSSING GATE
Document Type and Number:
Japanese Patent JP3822225
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a crossing gate capable of increasing a kind of crossing bars which can be attached, making ascending/descending of the crossing bar smooth, and materializing downsize, weight reducing, and low price by suppressing motor capacity without increasing current consumption.
SOLUTION: The crossing gate 1 ascends/descends the crossing bar 12 supported so as to rise/fall on a housing body 11 side by rotations of a motor M, and is provided with a torsion coil spring 40 adding auxiliary torque to a crossing bar rotating shaft 13 to which the crossing bar 12 is attached. The torsion coil spring 40 is wrapped around the crossing bar rotating shaft 13, and an acting end portion 41 thereof is fixed on the crossing bar rotating shaft 13 side. A supporting end portion 42 is made to abut on and be supported by a supporting member 50 arranged on the housing body 11 side. A fixing position of the supporting member 50 is changed, and a distance from a center shaft 62 of the torsion coil spring 40 to an abut supporting position 61 of the supporting end portion 42 of the torsion coil spring 40 is changed, thereby setting and changing the magnitude of the auxiliary torque.
Inventors:
Sakurai, Ikuo
Application Number:
JP2005000318221
Publication Date:
June 30, 2006
Filing Date:
November 01, 2005
Export Citation:
Assignee:
KYOSAN ELECTRIC MFG CO LTD
International Classes:
B61L29/14