| 摘要 |
A foldable invalid walker is provided with a pair of locking keys each of which is mounted within a leg of the walker for movement into either a narrow slot for use of the walker as a fixed walker, or into a wide slot for use of the walker as a swingable striding walker. When the keys are positioned in their respective narrow slots, the associated legs are held against relative movement with respect to the rest of the walker. When the keys are positioned in their respective wide slots, the associated legs are pivotally mounted to the rest of the walker, thus converting the walker to a swingable walker. The walker can further be folded for storage.
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