| 摘要 |
A turntable assembly for a stretch wrapping machine comprises a frame, a hub rotatably mounted to the frame on a shaft, a turntable mounted to the hub, and a plurality of rollers rotatably mounted to the frame defining a generally horizontal supporting plane for the turntable. Each roller has an axis of rotation generally parallel to the supporting plane and generally passing through the turntable axis of rotation. The frame is constructed so as to elastically deform, upon a load being placed upon the turntable that results in the load not being evenly supported by the rollers, to permit the roller axis of rotation to tilt relative to the horizontal supporting plane while still passing through the turntable axis of rotation. |
| 主权项 |
1. A turntable assembly for a stretch wrapping machine, said turntable assembly comprising:
a frame, a turntable mounted to said frame for rotation about a generally vertical turntable axis of rotation, and a plurality of rollers rotatably mounted to said frame and defining a generally horizontal supporting plane for supporting said turntable, each of said plurality of rollers having an axis of rotation generally parallel to the supporting plane and generally passing through the turntable axis of rotation, said frame constructed of a material and of a geometry so as to elastically deform, upon a load being placed upon said turntable that results in the load not being evenly supported by said rollers, to permit the axis of rotation of at least one roller of said plurality of rollers to tilt relative to the horizontal supporting plane while still passing through the turntable axis of rotation, said frame including a generally flat frame member having a generally rectangular cross-section extending in a generally vertical direction with a hole formed therein through a thinnest width of the generally rectangular cross-section and extending along an axis generally parallel to the horizontal supporting plane, said at least one roller being rigidly mounted to said frame member through said hole with said axis of rotation in a generally parallel relationship with the axis of the hole, wherein said frame member is constructed of a material and of a geometry so as to elastically deform in response to a force applied to said at least one roller by the load while maintaining the generally parallel relationship with the axis of the hole to which said at least one roller is rigidly mounted. |
