| 摘要 |
A framing system provides an angle joining piece having a pair of leg portions in mutually inclined relation for use with suitably grooved framing members wherein the leg portions are initially entered within the respective grooves and then forced home to engage respective tooth portions in locking engagement with an internal surface of the groove, to substantially preclude withdrawal of the leg portion from its groove. The selected angle is normally 90 DEG , for four sided frames, the legs each having a fulcrum portion and a buttress portion spaced from the tooth portion, to exert load against the tooth portion in securing relation therewith.
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