| 摘要 |
A base frame for a base assembly that supports a linkage support mechanism of a rocker-recliner chair includes metal side runners and metal end rails, the side runners having a generally Z-shaped cross sections and the end rails extending between and covering corresponding ends of the side runners. Upper flanges of the end rails are connected, e.g., bolted, to upper flanges of the side runners and lower flanges of the end rails are connected to lower flanges of the side runners to provide a rigid structure whose four corners are locked and display excellent squareness.
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