CONNECTING STRUCTURE OF HANDRAIL AND LADDER FRAME OF LAMBDOID FOLDABLE LADDER
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United States of America Patent
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Issued Date -
Sep 12, 2024
app pub date -
Sep 18, 2023
filing date -
Mar 6, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A connecting structure of a handrail and a ladder frame of a lambdoid foldable ladder is provided. A plastic fastening member is disposed on a front leg tube, and a top end of a rear leg tube is rotatably connected to the plastic fastening member, so as to enable the front leg tube and the rear leg tube to form a lambdoid rotatable structure. The vertical rod is parallel to the front leg tube and is configured to slide to pass through the plastic fastening member. The rear leg tube and the vertical rod are disposed on an outside of the front leg tube, and a connecting position of the rear leg tube and the plastic fastening member is located at a rear position of the outside of the front leg tube. The vertical rod is located at a front position of the outside of the front leg tube.
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