| 摘要 |
A bracket stands upright on a base attached to the bracket with a hinge, the hinge being biased by a spring to hold the bracket upright and at right angles to the base. The bracket has horizontal slots located at intervals along its vertical length. A tray, containing holes designed to hold a pair of bowls, is attached to the bracket by a hinge. One of the hinge leaves connects to the tray. The free hinge leaf terminates in a flange adapted to fit in one of the horizontal slots on the bracket to support and hold the hinge and tray on the bracket. The height of the tray may be adjusted by placing the free hinge leaf into different slots. The hinge is configured to prevent motion of the tray downward below a horizontal position. The hinges allow the structure to be folded flat to allow storage in a narrow space when the structure is not in use.
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