Stretch function-added loading sheet, and chair provided herewith
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United States of America Patent
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Sep 5, 2023
Grant Date -
Jul 28, 2022
app pub date -
Apr 16, 2020
filing date -
May 24, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
This stretch function-added loading sheet is provided with one sheet body and a force crimping unit. The force crimping unit comprises two clamping block plates and one clamping jig, and on one surface of the sheet body, the two clamping block plates are fixed on both sides of a folding centerline on the sheet body. In a state in which the sheet body is folded along the folding centerline such that the two clamping block plates overlap each other with the sheet body on the inside, the clamping jig is fixed to the two clamping block plates so as to clamp the two clamping block plates. The stretch function-added loading sheet has a stretch function with which the sheet body stretches by the clamping jig opening through application of a tensile force perpendicular to the folding centerline to the sheet body, and shrinks when said tensile force is reduced.
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