Push Broom Handle Bracket for Rotation-Resistant Attachment
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Solution Overview
Problem
Existing push broom designs suffer from rotational instability between the handle and the broom block, leading to a loose connection and wear, as well as difficulties in controlling the broom due to flexing.
Innovation Solution
A broom bracket system featuring two braces with elongated extension rods, block connectors, and handle straps with curved portions and teeth along a chord of the handle, forming a collar that inhibits rotation and provides secure attachment without damaging the handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a threaded connection is used to attach the broom block to the handle, then the connection can be easily assembled and disassembled, but the handle rotates during use causing the connection to loosen and wear
Solution Approach 1:
The bracket is divided into two separate braces that can be independently attached to the handle and broom block, with each brace providing a portion of the stabilizing structure. This segmentation allows the bracket to be assembled and disassembled in sections while maintaining connection stability during use.
Solution Approach 2:
The bracket is pre-assembled onto the handle before the broom block is attached, establishing a stable reference structure that prevents handle rotation from the outset. The braces are positioned and secured to the handle in advance, creating a rigid framework that maintains connection integrity throughout operation.
2Reliability
If glue is used to attach the handle to the broom block, then rotation is prevented, but the handle cannot be readily removed reducing flexibility
Solution Approach 1:
The connection system is segmented into removable mechanical components (braces with set screws) rather than a permanent bonded joint. This allows the handle to be detached from the broom block when needed while maintaining rotation prevention during use, providing both stability and flexibility.
Solution Approach 2:
The bracket system transitions from a static permanent connection (glue) to a dynamic removable connection. The set screws can be loosened to allow disassembly and tightened to prevent rotation, enabling the connection state to change based on operational needs.
3Strength
If large connectors such as screws are used to attach the bracket to the handle, then strong connection is achieved, but the handle is damaged due to its small diameter
Solution Approach 1:
Instead of using large connectors that affect the entire handle, the bracket uses small set screws that engage only local portions of the handle at specific attachment points. This localized connection provides sufficient strength without compromising the overall integrity or causing damage to the handle structure.
Solution Approach 2:
The bracket acts as an intermediary structure between the handle and broom block, distributing connection forces through the brace geometry rather than concentrating them in large screws. The triangular configuration of the braces creates mechanical advantage that reduces the fastening load on the handle.
4Ease of operation
If the broom block rotates around the handle, then the threaded connection loosens, but recurring tightening is required increasing time and wear
Solution Approach 1:
The bracket is installed on the handle before the broom block is attached, pre-establishing a rotation-preventing structure. This preliminary action eliminates the need for subsequent tightening operations by preventing the loosening condition from occurring in the first place.
Solution Approach 2:
The bracket provides preliminary counter-action against the rotational forces that would otherwise loosen the threaded connection. By opposing the loosening tendency before it can occur, the bracket eliminates the need for recurring tightening and reduces wear on the threaded components.
Data Source
AI summary
A broom bracket for a push broom which serves to provide strength between the connection of the handle and the broom block while inhibiting the rotation of the handle relative to the block and any loosening of a threaded connection therebetween.