초록 ▼

A caster wherein a U-shaped metallic or plastic frame has a vertically extending web and two parallel prongs which support the shaft for the wheel. The upper portion of the space between the prongs is occupied by a block-shaped supporting member which stiffens the frame and is secured to the prongs

A caster wherein a U-shaped metallic or plastic frame has a vertically extending web and two parallel prongs which support the shaft for the wheel. The upper portion of the space between the prongs is occupied by a block-shaped supporting member which stiffens the frame and is secured to the prongs by a transversely extending bolt. A portion of the supporting member which is adjacent to the upper portion of the web has one or more projections which are received in complementary sockets or holes of the web. That portion of the supporting member which is adjacent to the inner side of the web has a vertical hole for a kingbolt which is held in the supporting member against axial movement and the upper portion of which is externally threaded to be received in the leg of a piece of furniture or the like. The supporting member can be assembled of several mirror symmetrical sections and can further support or can be made integral with a brake shoe and/or a device for releasably locking the supporting member and the frame against rotation about the axis of the kingbolt.

대표청구항 ▼

CM,1. In a caster, the combination of a one-piece frame comprising two spaced-apart prongs and a substantially vertical web connecting said prongs to each other; a discrete supporting member disposed between and affixed to said prongs, said web and said supporting member having cooperating male and

CM,1. In a caster, the combination of a one-piece frame comprising two spaced-apart prongs and a substantially vertical web connecting said prongs to each other; a discrete supporting member disposed between and affixed to said prongs, said web and said supporting member having cooperating male and female coupling means; a wheel rotatably mounted in and disposed between said prongs, said supporting member including a brake shoe adjacent to the periphery of said wheel; means for moving said brake shoe toward and into engagement with the periphery of said wheel; a kingbolt rotatably journalled in said supporting memeber; and means for releasably locking said supporting member against rotation relative to said kingbolt, said locking means being reciprocable in said supporting member between operative and inoperative positions and said moving means including means for moving said locking means to said operative position in response to movement of said shoe toward and into engagement with the periphery of said wheel.