Do it yourself bench
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Solution Overview
Problem
Existing benches are often complex and difficult to assemble, prone to deterioration when exposed to elements, and lack customization options, leading to safety and aesthetic issues.
Innovation Solution
A bench system featuring side frames with openings and end caps that prevent plank displacement, allowing for easy assembly using standard parts and enabling customization with themed designs and emblems, while using materials resistant to decay and fading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional bench assembly methods are used, then the bench structure can be achieved, but the assembly process becomes complex and difficult
Solution Approach 1:
The bench is divided into modular components (side frames, planks, end caps) that can be independently manufactured and easily assembled together using simple insertion and fastening operations, eliminating complex assembly procedures
Solution Approach 2:
The design incorporates self-aligning features and simple fastening mechanisms that allow the bench to be assembled without specialized tools or expertise, enabling ordinary consumers to complete assembly independently
2Strength
If fasteners are passed perpendicularly through exposed plank surfaces, then the planks can be securely attached, but water absorption and rotting are promoted
Solution Approach 1:
Instead of passing fasteners through the exposed top surface of planks (which creates water pathways), the design passes fasteners through the end caps and into the end grains of the planks, inverting the fastening direction to avoid the harmful surface penetration while maintaining secure attachment
3Strength
If fasteners are positioned at or near the ends of planks, then the planks can be secured to the frame, but premature tear-out occurs due to exposure to elements
Solution Approach 1:
The end caps serve as intermediary components that distribute fastener loads across multiple fasteners and into the end grain of the planks, preventing premature tear-out while maintaining secure attachment. The end caps protect the fastener positions from direct element exposure
4Strength
If protruding fastener heads are used to secure planks, then the planks can be firmly attached, but the bench becomes uncomfortable and unattractive
Solution Approach 1:
The design extracts the fastener heads from the visible and contact surfaces of the bench by incorporating them into the end caps, which are positioned at the ends of the planks rather than along the seating surface. This removes the harmful protruding heads while maintaining secure fastening through the end cap structure
Data Source
AI summary
An improved bench system formed of a pair of side frames having a main body portion, a front leg portion, a rear leg portion and a back portion. The side frames having a plurality of openings therein the have a flange that extend into the openings, the openings sized and shaped to receive planks from a first side and end caps from a second side. The end caps include a step that is sized and shaped to receive the flanges in the openings thereby preventing the planks from being pulled through the openings unintentionally. The benches can be themed by making the side frames one color and the end caps another color and adding an emblem to a recessed panel in the side frames. As such an improved bench that is safe and easy to assemble is presented.