| 摘要 |
A porch, patio or lawn swing is safety grounded when its rider merely steps onto or off of stands on a platform extending below and forwardly of the swing seat. The platform is supported from the seat by a bracket. Preferably, the platform is pivotally supported. A spring is attached to the platform for urging the platform upwardly from the ground. When the rider is seated, the spring raises the platform from the ground and the rider may push on the platform to move the swing.
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