초록 ▼

A trolley comprising a trolley body, a shaft fixed on the trolley body and having ends projecting outwardly along the sides of the trolley body and a wheel on each end of the shaft. Each wheel comprises an inner race, an outer race and rollers between the inner and outer races. The inner race having

A trolley comprising a trolley body, a shaft fixed on the trolley body and having ends projecting outwardly along the sides of the trolley body and a wheel on each end of the shaft. Each wheel comprises an inner race, an outer race and rollers between the inner and outer races. The inner race having an opening through which the end of the shaft extends. The inner race also has a frusto conical surface adjacent the end of the opening. A conical washer having its outer surface complementary to the frusto conical surface of the inner race is placed adjacent thereto and interengaging means are provided between the washer and the shaft end to prevent rotation therebetween. Each end of the shaft having a threaded opening extending axially therein and a cap screw is threaded into the opening and engages the conical washer to hold the washer against the inner race and relative to the end of the shaft.

대표청구항 ▼

In a trolley, the combination comprising a trolley body; a shaft fixed on said trolley body and having ends projecting outwardly along the sides of the trolley body, a wheel on each end of the shaft, each wheel comprising an inner race, an outer race and bearing means between the inner and outer rac

In a trolley, the combination comprising a trolley body; a shaft fixed on said trolley body and having ends projecting outwardly along the sides of the trolley body, a wheel on each end of the shaft, each wheel comprising an inner race, an outer race and bearing means between the inner and outer races, said inner face having an opening through which the end of the shaft extends, said inner race having a frusto conical surface adjacent the end of the opening, a conical washer, said washer having its outer surface complementary to the frusto conical surface of the inner race, interengaging means between the washer and the shaft end preventing rotation therebetween, each end of the shaft having a threaded opening extending axially therein, and a cap screw threaded into said opening and engaging said conical washer to hold said washer against said inner race.