| 摘要 |
A support system is provided for detachably mounting an article to a tubular support structure. The system includes a bracket plate having a key-way with side walls diverging from a front face of the bracket plate to a rear face thereof. The key-way extends entirely through the bracket plate between the front and rear faces and includes an entry mouth opening at an edge of the bracket plate. A support plate is adapted to be attached to the rear face of the bracket plate to close the key-way at the rear face. A mounting device mounts the bracket plate and attached support plate to one of the tubular members, with the key-way facing away from and extending longitudinally of the one tubular member. An elongated supporting key is adapted to be attached to the other of the tubular members lengthwise thereof. The supporting key is positionable into the entry mouth of the key-way and has side walls converging from a front face of the key to a rear face thereof for mating proximity to the diverging side walls of the key-way.
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