Seating Frame Clamping for Durable Replaceable Seat Panels
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Solution Overview
Problem
Existing seating furniture in public spaces faces challenges with complex anchoring mechanisms and material thickness constraints, leading to high maintenance costs and reduced durability due to damage from heavy usage and carelessness.
Innovation Solution
A seating furniture design featuring a standardized frame with seat and back parts that utilize a frictional clamping connection secured by engagement members, allowing for easy assembly and replacement, independent of material type and thickness, and incorporating a T-shaped cross-section for reinforcement and accessory installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grommets and studs are used to anchor pad edges between frame and cover plates, then the pads are securely anchored, but the anchoring mechanism becomes complicated and material thickness is constrained
Solution Approach 1:
The engagement member is extracted as a separate functional element from the pad material itself. It can be attached to the peripheral edge of the pad independently, allowing the anchoring function to be separated from the pad's material properties and thickness constraints
Solution Approach 2:
The engagement member serves as a universal interface between the pad and frame, working with various pad materials and thicknesses. The frame's clamping connection is designed to work with any engagement member configuration, making the system adaptable to different materials including metal sheets, skins, fabric sheets, and other thin materials
2Ease of manufacture
If standardized frames are used to minimize individual components, then assembly is simplified, but adaptability to different seat and back parts is reduced
Solution Approach 1:
The frame's clamping connection is designed as a universal interface that can accommodate different engagement member configurations. The engagement member adapts to various pad materials and thicknesses, allowing the standardized frame to work with diverse seat and back parts without requiring frame alterations
Solution Approach 2:
The system is segmented into three independent components: the standardized frame, the engagement member attached to the pad edge, and the pad material itself. This segmentation allows each component to be optimized independently while maintaining compatibility through their interfaces
3Weight of moving object
If seat and back parts are made from thin materials like metal sheets or fabric sheets, then weight and complexity are reduced, but anchoring reliability is compromised
Solution Approach 1:
The engagement member is extracted as a separate functional element that can be attached to thin pad materials. This allows the anchoring function to be provided by a dedicated component rather than relying on the pad material's inherent thickness or strength
Solution Approach 2:
The system creates a composite structure where the thin pad material (metal sheet, skin, fabric sheet) is combined with the engagement member and the frame's clamping connection. This composite approach allows thin, lightweight materials to achieve reliable anchoring through the combined system rather than relying on the pad material alone
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
This design provides long-lasting comfort, simplified assembly and maintenance, and flexibility in using various materials while maintaining structural integrity and aesthetics.
Implementation Method 1
said engagement member being fastenable in the frame joint via a frictional connection
Data Source
AI summary
The invention relates to seating furniture comprising two frames arranged at a distance to each other on a support, between which frames a seat part and a backrest part can be mounted, and the frames have one upper frame part and a lower frame part each which mechanically immobilize the seat part and the backrest part a the sides thereof. The upper frame part and the lower frame part are clamping elements that can be braced with each other. At least one clamping element has a laterally extending recess on each edge which recess forms a frame groove in which a respective engaging element provided on the edges of the seat part and of the backrest part can be mounted by way of a frictional connection to the upper frame part and the lower frame part. The recess has an undercut portion which forms a stop for holding the clamped engaging element by a form fit.