| 摘要 |
A skateboard has a guide which allows a vertically elongated plunger to pass through a hole in the board. The guide allows the plunger to move up and down, while preventing rotation thereof. At the lower end of the plunger, below the skateboard, is attached a wooden block. A compression spring pushes the block and plunger upwardly. At the upper end of the plunger is attached a transversely extending cylindrical rod. A pedal is disposed at the upper end of the plunger. The brake is actuated by depressing the pedal.
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