Foldable frame construction for mobility aids
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United States of America Patent
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Sep 8, 2020
Grant Date -
Jul 9, 2020
app pub date -
Jan 3, 2019
filing date -
Jan 3, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A foldable frame construction for mobility aids has a mounting frame, a pivotal arm, and an operating element. The mounting frame has a fixed end, a limiting end, a limiting hole formed through the mounting frame adjacent to the limiting end, and a through hole formed through the mounting frame between the fixed end and the limiting hole. The pivotal arm is rotatably connected to the mounting frame and has a positioning hole formed through the pivotal arm and selectively aligning with the through hole. The operating element is connected to the pivotal arm and the mounting frame to limit a position of the pivotal arm relative to the mounting frame, and has a fixing ring base securely connected to the pivotal arm around the positioning hole, an engaging bolt movably mounted in the fixing ring base, and a pull button connected to the engaging bolt.
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