| 摘要 |
An improved tray assembly broadly includes a tray and a bail. The tray has a bottom and a pair of spaced side walls. An outer wall is spaced from each side wall, and is provided with an opening spaced laterally from the tray's center of gravity. Distal end portions of the bail are inserted into the openings to mount the bail for pivotal movement relative to the tray between a raised position and a lowered position. A stop member engages the bail in its raised position to prevent further pivotal movement thereof in one angular direction. An abutment member engages the bail in its lowered position to prevent further pivotal movement thereof in the opposite angular direction. If desired, the tray assembly may further include a roller having stub shafts extending axially outwardly from either end face. These stub shafts may be journalled in trunnion bearings mounted on the tray. Each trunnion bearing preferably has a narrowed entrance portion dimensioned less than the diameter of the stub shafts so that the roller may be snapped into the trunnion bearings.
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