Self-Powered Caster Delivery Device for Heavy Rolls
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Solution Overview
Problem
The manipulation of bulky, weighty decorative article rolls is challenging, especially in environments lacking optimal movement conditions, posing risks to operators and potentially damaging the goods.
Innovation Solution
A delivery device equipped with self-powered, driven casters and a planar bed with passive and driven casters, along with a cradle and off-loading lever, facilitates the conveyance and targeted delivery of bulky items like rolled decorative articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual manipulation of heavy decorative article rolls is used, then operator control and flexibility are maintained, but operator safety risks increase and operator fatigue occurs
Solution Approach 1:
The delivery device is self-powered through electric motor units that autonomously propel the heavy decorative article rolls, eliminating the need for operators to manually push or pull these extremely heavy loads. The system serves itself by providing its own motive power, thereby protecting operators from safety risks associated with manual handling while maintaining full operational control through electronic controls.
2Object-affected harmful factors
If specialized transport equipment is used, then heavy decorative article rolls can be moved safely, but the equipment cannot be easily maneuvered in environments without optimal conditions
Solution Approach 1:
The delivery device is divided into modular components including a frame, bed, casters, and electric motor units that can be independently assembled and configured. This segmentation allows the system to be adapted to various environmental conditions and delivery scenarios while maintaining safety capabilities, as each module can be optimized for specific operational requirements.
Solution Approach 2:
The delivery device incorporates dynamic elements such as freely rotatable casters that can adapt to different ground surfaces and obstacles, and electric motor units that can adjust their power output and speed based on terrain conditions. This dynamic adaptability enables the system to operate safely in environments ranging from smooth warehouse floors to rough outdoor terrain.
3Device complexity
If passive casters are used for all wheels, then the device is simpler in structure, but the device cannot move heavy loads efficiently
Solution Approach 1:
The delivery device employs a hybrid caster configuration where only the rear casters are equipped with electric motor units, while the front casters remain passive and freely rotatable. This local differentiation optimizes the system by providing powered propulsion only where needed for moving heavy loads, while keeping the front casters simple for steering and navigation, thus balancing structural complexity with movement efficiency.
4Productivity
If driven casters with motors are used, then heavy loads can be moved efficiently, but the device complexity increases
Solution Approach 1:
The electric motor units are integrated directly into the caster assemblies, merging the propulsion function with the wheel assembly rather than using a separate powertrain system. This consolidation reduces overall device complexity by eliminating intermediate transmission components and simplifying the mechanical structure, while still achieving efficient movement of heavy loads through the motorized casters.
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 delivery device enables efficient, safe, and controlled movement of heavy decorative article rolls in various environments, minimizing operator risk and preventing damage to the goods, while also allowing delivery to unserved facilities.
Implementation Method 1
two electric motor units, each in communication with a respective one of the two driven casters, for selectively driving the respective caster in response to a control signal
Implementation Method 2
two passive casters mechanically attached to the underside of the bed at the first end thereof, each of the passive casters configured to be freely rotatable about a respective vertical axis
Implementation Method 3
a mechanical brake mounted with respect to the bed
Implementation Method 4
an off-loading lever mechanically connected to the bed via a lateral pivot for selectively engaging an outer portion of the second side portion to force the cradle to rotate about the first side portion pivot
Data Source
Figure 1A~1C
Figure 2A~2B
Figure 2C~3
AI summary
A selectively driven delivery device for conveyance and off-loading of decorative articles in rolled form.