Coupling assembly for wheel and axle
First Claim
Patent Images
1. An apparatus comprising:
- a base;
a wheel by which the base is configured to be wheeled across a floor, the wheel including a tread and a hub, the hub having an inner surface surrounding an axis and defining a bore, an outer surface surrounding the inner surface, and a slot extending radially outward from the bore to the outer surface;
a shaft that is centered on the axis and coupled to the base and configured to be received in the bore and has a groove; and
a clip configured to be attached to the hub in an installed position in which the clip extends from within the groove outward through the slot to secure the hub to the shaft, the installed position being axially between the base and the tread;
wherein the clip is configured to be pulled by a hook in a radially outward direction to withdraw the clip from the groove to release the hub from the shaft; and
the clip can also be pushed in a direction opposite said radially outward direction, to withdraw the clip from the groove to release the hub from the shaft.
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Abstract
A wheel, by which a base is configured to be wheeled across a floor, includes a tread and a hub. The hub has an inner surface that surrounds an axis and defines a bore. The hub further has an outer surface surrounding the inner surface and a slot extending radially outward from the bore to the outer surface. A shaft is centered on the axis and coupled to the base. The shaft is configured to be received in the bore and has a groove. A clip is configured to be attached to the hub in an installed position in which the clip extends from within the groove outward through the slot to secure the hub to the shaft. The installed position is axially between the base and the tread.
34 Citations
11 Claims
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1. An apparatus comprising:
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a base; a wheel by which the base is configured to be wheeled across a floor, the wheel including a tread and a hub, the hub having an inner surface surrounding an axis and defining a bore, an outer surface surrounding the inner surface, and a slot extending radially outward from the bore to the outer surface; a shaft that is centered on the axis and coupled to the base and configured to be received in the bore and has a groove; and a clip configured to be attached to the hub in an installed position in which the clip extends from within the groove outward through the slot to secure the hub to the shaft, the installed position being axially between the base and the tread; wherein the clip is configured to be pulled by a hook in a radially outward direction to withdraw the clip from the groove to release the hub from the shaft; and the clip can also be pushed in a direction opposite said radially outward direction, to withdraw the clip from the groove to release the hub from the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus comprising:
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a base; a wheel by which the base is configured to be wheeled across a floor, the wheel including a tread and a hub, the hub having an inner surface surrounding an axis and defining a bore, an outer surface surrounding the inner surface, and a slot extending radially outward from the bore to the outer surface; a shaft that is centered on the axis and coupled to the base and configured to be received in the bore and has a groove; and a clip configured to be attached to the hub in an installed position in which the clip extends from within the groove outward through the slot to secure the hub to the shaft, and in which the clip is accessible through a clearance between the base and the tread to withdraw the clip from the groove to release the hub from the shaft; wherein the clip is configured to be pulled by a hook in a radially outward direction to withdraw the clip from the groove to release the hub from the shaft; and the clip can also be pushed in a direction opposite said radially outward direction, to withdraw the clip from the groove to release the hub from the shaft. - View Dependent Claims (10, 11)
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Specification