| 摘要 |
A foothold is provided with reflectors capable of preventing reflectors having different colours from being erroneously attached to the foothold, of securing unity of the positions of the footholds in respect of right and left colours thereof without fixing the foothold again to the body, of sufficiently serving as a channel mark, and of being used for a long period of time since given colours are provided at given positions even if the foothold is fixed to the body while the front and back thereof are turned upside down. The foothold provided with reflectors comprise a tread and side portions continued and positioned at both sides of the tread. The foothold further comprises a set of reflector members composed of upper and lower reflectors each having an elbow shape as viewed from the tops thereof and different colours. A convex portion is being formed on the back surface of one reflector having one colour while a concave portion is being formed on the back surface of another reflector having another colour. A concave portion and a convex portion being formed on the foothold correspond to the convex portion and the concave portion of each reflector. Respective reflectors are being retained by the foothold so as to cover the upper and lower surfaces and the front and rear surfaces of the tread and the side portions with respective reflector members at both corners formed between the tread and side portions. The colour of the upper reflector at one corner is the same as that of the lower reflector at the other corner.
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