The invention comprises a caster having a yoke having a weight transferring tab and a wheel being rotatably attached to the yoke. The wheel has a groove for receiving the weight transferring tab. The tab transfers the weight of a load applied to the yoke to the groove. The caster includes various ac
The invention comprises a caster having a yoke having a weight transferring tab and a wheel being rotatably attached to the yoke. The wheel has a groove for receiving the weight transferring tab. The tab transfers the weight of a load applied to the yoke to the groove. The caster includes various accessories, such as various stem, wheel, brake, and axle/hub configurations.
대표청구항▼
1. A caster comprising: a yoke having a weight transferring tab being fixedly attached to the yoke;a separate axle attached to the yoke on which at least one wheel rotatesthe at least one wheel being rotatably attached to the yoke, the at least one wheel having a groove that receives the weight tran
1. A caster comprising: a yoke having a weight transferring tab being fixedly attached to the yoke;a separate axle attached to the yoke on which at least one wheel rotatesthe at least one wheel being rotatably attached to the yoke, the at least one wheel having a groove that receives the weight transferring tab, wherein the tab transfers the weight of a load applied to the yoke directly to the axle, applying a downward force to the axle. 2. The caster of claim 1, further comprising a stem, the stem being connected to the yoke and being ratable with respect to the yoke. 3. The caster of claim 1, further comprising a stem, the stem being connected to the yoke and being non-rotable with respect to the yoke. 4. The caster of claim 3, wherein when an end of the stein has a directional shape and a bore formed in the yoke that receives the stem has a complementary shape, together the shape of the stem and yoke bore ensure that the stem is aligned with a direction in which the caster travels when in use. 5. The caster of claim 4, wherein the stem comprising a flat plate which is aligned with the direction in which the caster travels when in use. 6. The caster of claim 1, further comprising a stem, the stem comprising a flat plate that attaches to the load. 7. The caster of claim 1, further comprising a side brake or a tread brake for applying a braking force. 8. The caster of claim 7, wherein the at least one wheel is a single wheel, or comprises a pair of separate wheels. 9. The caster of claim 1, wherein the at least one wheel is a single wheel, or comprises a pair of separate wheels. 10. The caster of claim 1, further comprising a stem, wherein the stem is disposed substantially on a centerline of the yoke and wherein the tab transfers the load applied to the stem directly to the axle. 11. The caster of claim 1, further comprising a stem, wherein the stem is attached to the yoke by a snap-fit connection or a press-fit connection. 12. The caster of claim 1, further comprising a stem, wherein the stem has a directional shape and the yoke has a hole with a complementary shape. 13. The caster of claim 12, wherein the directional shape is a triangular or square. 14. The caster of claim 1, wherein the yoke is capable of supporting at least about 250 pounds of weight applied to the caster. 15. The caster of claim 1, wherein the groove is formed in part by an interposed disk. 16. A caster comprising: a yoke having a weight transferring tab being fixedly attached to the yoke;a wheel or a pair of separate wheels being rotatably attached to the yoke, the wheel having a groove that receives the weight transferring tab, wherein the tab transfers the weight of a load, applying a downward force to the groove;a separate axle attached to the yoke and on which the wheel rotates; anda stem, the stem being connected to the yoke and being rotable or non-rotatable with respect to the yoke, the stem comprising a flat plate that attaches to the load. 17. The caster of claim 16, wherein the groove is formed in part by an interposed disk. 18. The caster of claim 16, further comprising a side brake or a tread brake for applying braking force.
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이 특허에 인용된 특허 (28)
Prevot M. Grard (Willerwald FRX), Bearing device for sliding leaf of doors, windows or the like.
Harris Charles A. (Evansville IN) Simonsen Robert J. (Evansville IN), Caster assembly with integral plastic stem and horn and with removable axle lock cap.
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