Portable chair
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Solution Overview
Problem
Existing portable chairs fail to provide a comfortable and stable seating experience due to sagging issues caused by flexible materials, which compromise stability and user support.
Innovation Solution
A portable chair design featuring a chair frame formed by detachably coupling poles, with a seat member made of hard material and a chair cover of flexible material, including a central support pole, front and rear support poles, and leg poles, along with a rear support member, providing stable support and comfort through angled configurations and secure attachment methods like elastic clips and Velcro tapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the seat member is made of flexible material, then the chair is easy to carry and simple to install, but the seat member sags downward and fails to provide stable seating feeling
Solution Approach 1:
The patent applies composite materials by combining flexible material (chair cover) with hard material (seat member). The seat member is specifically made of hard material to provide structural support and prevent sagging, while the flexible chair cover maintains ease of carrying and installation. This composite approach resolves the contradiction between ease of operation and seating stability.
2Stability of the object's composition
If the seat member is made of hard material, then stable seating feeling is provided, but the chair becomes less portable and harder to assemble
Solution Approach 1:
The patent segments the chair into distinct components: the chair frame, the flexible chair cover, and the hard seat member. The seat member is designed as a separate component that can be easily attached to or removed from the chair frame. This segmentation allows the hard seat member to provide stability while keeping the overall chair simple to assemble and disassemble, resolving the contradiction between seating stability and assembly complexity.
3Ease of operation
If the chair frame uses multiple detachable poles, then portability is improved, but the structural stability may be compromised
Solution Approach 1:
The patent employs preliminary action through pre-designed connection structures at the joints of the detachable poles. These connection structures are prepared in advance to ensure strong and stable connections when assembled. The rigid connection mechanisms at each joint provide sufficient structural strength to support the hard seat member and maintain overall frame stability, while still allowing easy assembly and disassembly for portability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design ensures stable and comfortable seating by preventing sagging, maintaining user support without restricting movement, and allowing easy assembly and disassembly for portability.
Implementation Method 1
the chair cover may have an elastic clip protruding on the bottom surface of the seat member and be fixed to the central support pole as the central support pole is inserted into the elastic clip
Implementation Method 2
the chair cover may include a Velcro tape coupled to the bottom surface of the seat member to fix the central support pole
Data Source
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AI summary
A portable chair according to the present disclosure includes a chair frame (110) formed by detachably coupling a plurality of poles (111, 112, 113, 114, 115), a chair cover (120) detachably coupled to the chair frame and made of a flexible material supporting the body of a user, and a seat member (121) installed at a portion of the chair cover (120), which supports a hip portion of the user, and made of a hard material.