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    • 90. 发明专利
    • BRAKING DEVICE
    • JP2001247029A
    • 2001-09-11
    • JP2000060175
    • 2000-03-06
    • TAKAHIRO KOGYO KK
    • SUGANUMA TETSUO
    • B60T11/08A61G5/02B60T1/04B60T7/08B62B5/04B62B5/06B62L1/04
    • PROBLEM TO BE SOLVED: To improve a braking device suitable for a wheelchair or the like. SOLUTION: A rod 62 to press a braking member 82 on a tire of a wheel is advanced/retreated by a rotary cam 52. By providing engagement grooves 58, 60 on a cam surface 56 of the rotary cam 52 and engaging the grooves 58, 60 to a projected line 70 of a rod end part, retreating of the rod 62 is prevented. By fitting a twisting member 132 into an intermediate part of the rod 62 and energizing the rod 62 in a twisting direction by an extension tension spring 150, retreating of the rod 62 is prevented. At a tip part of the rod 62, a rotation member 84 is rotatably mounted and a braking member 82 is mounted at the tip part so that the member 82 may be normally rotated and may not be reversed. The rotation member 84 is energized by a torsion coil spring 100 in the direction that the braking member 82 moves in the same direction as that of the tire when the wheel is reversed. By a simple operation, reversing of the wheel can be prevented, a desired braking effect can be obtained at the time of normal rotation and wear of the tire can be reduced.