| 摘要 |
Adjustable height basketball goal and backboard apparatus is disclosed which has three fixed length supporting arms and one variable length supporting arm. One end of each of the fixed length arms is hingedly secured to the back side of the backboard in a triangular array, and the other end of each of the fixed length supporting arms is hingedly secured to the wall in a corresponding triangular array. The fixed length supporting arms permit the backboard to be adjusted to any height within a range of heights, while maintaining the front side of the backboard vertically with respect to the ground when the backboard is moved within the range. One end of a variable length arm is secured to the wall, and the other end is secured to one of the fixed length arms. The length of the variable length arm determines the height of the backboard within the range of heights available. The height of the backboard may be adjusted vertically within the range for use by players of different heights.
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