Rotating and Telescoping Snow Shovel Handle for Ergonomic Posture
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Solution Overview
Problem
Conventional snow shovels require users to exert back and arm strength, leading to strain and risk of injury due to awkward handling positions, as they are typically not adjustable to accommodate user height or provide comfortable grip orientation.
Innovation Solution
An extendable and rotatable shovel with a telescoping shaft and ergonomic handle that allows users to adjust the handle length and rotate the grip, enabling comfortable and efficient snow removal by leveraging body weight and reducing strain on the back and shoulders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shovel handle is fixed in standard size and orientation, then the device structure is simple, but it causes strain on user's back, arm, and wrist due to awkward handling positions
Solution Approach 1:
The handle is made rotatable relative to the shaft, allowing the user to dynamically adjust the grip orientation to a neutral position that aligns with the forearm, eliminating wrist strain. The handle can rotate between different angular positions to accommodate various pushing angles and user preferences.
Solution Approach 2:
The handle structure is divided into separate components: a shaft portion and a handle portion connected by a rotation joint. This segmentation allows independent movement of the handle relative to the shaft, enabling the user to optimize the grip angle without affecting the shaft orientation.
2Adaptability or versatility
If the shovel handle is made adjustable for different user heights, then it accommodates various users, but it increases device complexity
Solution Approach 1:
The handle length is made adjustable through a telescoping mechanism with multiple extension positions. The user can extend or retract the handle to achieve the optimal length for their height and reach, allowing the shovel to adapt to different users without requiring multiple tools.
3Productivity
If the user pushes snow with rounded back and internally rotated shoulder, then snow removal is achieved, but it causes muscle strain and serious injury risk
Solution Approach 1:
The rotatable handle allows the user to position the grip in line with the forearm, creating a neutral wrist position during pushing. This dynamic adjustment enables the user to maintain proper body mechanics with extended arm and neutral joints, eliminating the need to push from a hunched position while maintaining snow removal effectiveness.
4Productivity
If the shovel rotation for removing snow is performed from awkward position, then snow is removed, but it increases risk of injury
Solution Approach 1:
The rotatable handle enables the user to optimize the grip orientation during the snow removal rotation motion. By adjusting the handle angle, the user can perform the lifting and dumping motion from a more ergonomic position, reducing strain on the wrist and shoulder while maintaining the ability to effectively remove snow from the blade.
Data Source
AI summary
The disclosed apparatus, systems and methods relate to an improved extendable and rotatable shovel for use in various applications such as the shoveling of snow. Users can modify the shovel to accommodate their stature and personal preferences. The shovel is selectively rotatable and extendable, so as to be capable of a range of acute driving positions, such that a user can position the handle on or at the shoulder of the user in an upright driving position.