Lever Bar with Curved Dual-Head Design for Metal Form Removal
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Solution Overview
Problem
Current lever bars are inadequate for removing metal forms due to insufficient angles and lack of strength, particularly in designs with movable joints and pivotable heads, which hinder efficient removal and manipulation of metal forms and brackets.
Innovation Solution
A lever bar with a curved, double-sided head and a flattened point, featuring a crescent-shaped curved head with different operating angles and reinforced construction for enhanced strength, allowing for efficient removal of metal forms and heavy objects, and the ability to switch between angles and functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current lever bars use movable joints and pivotable heads, then they gain versatility for different tasks, but they lose strength and structural integrity
Solution Approach 1:
The patent combines multiple lever bar functions (prying, clawing, flat surface applications) into a single integrated tool with a dual-headed design. Both functional heads are fixed to the shaft without movable joints, merging versatility with structural strength by eliminating weak points associated with pivotable connections.
Solution Approach 2:
The lever bar features a dual-headed design where one end has a clawed head for traditional prying and nail removal, while the other end has a flat head for alternative applications. This universal design allows a single tool to perform multiple functions that previously required separate tools, without compromising strength through movable joints.
2Strength
If current lever bars have a single straight head design, then they maintain structural strength, but they lack the correct angles for removing metal forms efficiently
Solution Approach 1:
The patent introduces a curved head design with specific angular orientations instead of a traditional straight head. The curved geometry provides optimized prying angles for removing metal forms and brackets from elevated positions, improving ease of operation while maintaining structural strength through fixed connections to the shaft.
Solution Approach 2:
The dual-headed design features asymmetric geometry where each head is configured with different angular orientations and shapes suited for specific tasks. This asymmetry allows optimal engagement with metal forms at various angles and positions, enhancing operational efficiency without requiring movable joints.
3Strength
If lever bars are designed with fixed single-function heads, then they maintain strength, but they require multiple tools for different construction tasks
Solution Approach 1:
The lever bar integrates multiple functions into a single tool by providing a dual-headed design with fixed heads optimized for different tasks. One head features claws for traditional prying and nail removal, while the other head has a flat surface for alternative applications, eliminating the need for multiple separate tools while maintaining structural strength.
Solution Approach 2:
The patent merges the functionality of multiple traditional lever bar variants (clawed crowbar, flat-headed pry bar) into a single unified tool. Both heads are fixed to the shaft, combining versatility with strength by eliminating the need for movable joints or interchangeable components.
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 lever bar provides improved ease and strength for removing metal forms and brackets, as well as lifting and moving heavy objects, with the curved head offering adjustable angles and reinforced durability, enabling effective use in construction tasks.
Implementation Method 1
The lever bar provides improved ease and strength for removing metal forms and brackets, as well as lifting and moving heavy objects, with the curved head offering adjustable angles
Implementation Method 2
constructed or moulded from one piece of metal with reinforcements strengthening the areas which are subject to maximum stress
Data Source
AI summary
An improved lever bar has an elongated shaft having two opposite distal ends. The first of the two opposite distal ends includes a crescent shaped portion having opposite end portions, both of the crescent opposite end portions respectively include flattened, clawed portions; and the second of the two opposite distal ends includes a flattened, pointed portion.