Patent ID: 6854567

Claim:
A caster lock indicator to be used for a caster comprising a wheel fitted to a leg member rigidly or rotatably secured to a fitting section, said caster having a stopper lever, including an indicator window, rotatably fitted to said leg member by way of a lever support member and adapted to be rotated in order to turn a stopper spring also fitted to said leg member by way of a spring support member, said stopper spring having a fitting section side part and a stopper lever side part, whereby rotation of said stopper lever causes the fitting section side part of the stopper spring to be held relative to said fitting section so as to lock the leg member against any rotary motion and/or causing the stopper lever side part of the stopper spring to abut the wheel so as to lock the wheel against any swiveling motion, said caster lock indicator further comprising a lock indicator plate, slidably contained in a guide space of said stopper lever and having a lock indicator surface including a part for indicating the unlocked state slidably contained in a guide space of the stopper lever to be visually recognizable through the indicator window when the stopper lever is in the unlocked state, and a part for indicating the locked state located adjacent to the part for indicating the unlocked state to be visually recognizable through the indicator window instead of said part for indicating the unlocked state when the stopper lever is rotated to lock the leg member and/or the wheel as the lock indicator plate anchored to said stopper lever side part of the stopper spring supported by the spring support member arranged at a position different from said lever support member is made to returnably slide in said guide space relative to the stopper lever.