Foldable chair

The foldable chair's innovative frame design and materials provide a lightweight, sturdy solution that withstands environmental elements, balancing transportability and support while resisting corrosion.

WO2025248484A1PCT designated stage Publication Date: 2025-12-04SHIBUMI SHADE INC
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
PCT/IB2025/055561
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-31
Filing Date
2025-05-29
Publication Date
2025-12-04

AI Technical Summary

Technical Problem

Existing foldable chairs struggle to balance being lightweight and sturdy, with many being either too heavy for transport or too flimsy for support, and are prone to corrosion from exposure to environmental elements.

Method used

A foldable chair design featuring a frame composed of non-circular cross-sectioned horizontal and vertical frame components, rear joint assemblies allowing reclination and collapse, and engagement structures for hinged leg folding, combined with a durable, lightweight material like aluminum alloy and corrosion-resistant coatings.

Benefits of technology

The chair achieves a weight range of 5-15 pounds, supports up to 300-500 pounds, and resists corrosion, maintaining structural integrity and ease of transport.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure IB2025055561_04122025_PF_FP_ABST
    Figure IB2025055561_04122025_PF_FP_ABST
Patent Text Reader

Abstract

A foldable chair is disclosed herein, where the foldable chair (10) includes a first plurality of frame components (14, 16) forming a seat of the chair, a second plurality of frame components (24, 26) forming a backrest coupled with the seat and moveable relative thereto; rear legs (32, 34); rear joint assemblies (36) enabling the backrest to translate between angles of reclination relative to the seat in a supporting configuration and to collapse the backrest toward the seat and align the rear legs with the first and second horizontal frame components in a transport configuration; front legs (38, 40) coupled with the first plurality of frame components; and first and second engagement structures (42, 44) that allow for an indirect coupling between the first plurality of frame components and the front legs, the engagement structures operating in tandem with the rear joint assemblies to hingedly collapse the front legs against the respective rear legs in the transport configuration.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Recursive DC-DC converter

    US10110130B2

  • Chair

    US10631651B1

  • Beach chair conforming to human engineering

    CN213308492U

  • Backpack type folding chair

    US10238214B1

  • Combination Chair and Backpack Arrangement

    US20200214451A1