Fire escape – ladder – or scaffold – With indicator – signal or alarm
Patent
1999-03-12
2000-02-29
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
With indicator, signal or alarm
182129, 1822282, E06C 102
Patent
active
060297727
ABSTRACT:
A reflector having a plurality of grooves formed on the outer periphery and extending in the axial direction thereof and irregularities formed on the inner periphery thereof to provide secure engagement of the reflector on each cross piece of a ladder. The reflectors are easily attached to each cross piece and can be reliably held thereon thereby preventing accidents when the user goes up or down the ladder. The ladder provided with the reflectors includes a pair of beams, a plurality of cross pieces provided between and connecting the beams, and each cross piece has a plurality of grooves provided on the outer periphery and extending in the axial direction thereof. A reflector is disposed on at least one end of each cross piece at a connecting portion between the cross piece and the respective beam, and each reflector is ring shaped and has a plurality of irregularities formed on the inner periphery at a small diameter portion thereof which engage in the grooves of the respective cross piece. Reflector portions having irregularities are also formed on the inner periphery of the reflector at a large diameter portion thereof, and a plurality of grooves are formed on the outer periphery and extend in the axial direction thereof.
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Chin-Shue Alvin
Miyama Kogyo Kabushiki Kaisha
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