Roller Enclosing Part Deflection Mechanism
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Solution Overview
Problem
Existing rollers with enclosing parts lack effective protection against collisions with rising surfaces, as they are either rigid and non-adjustable or do not adequately deflect to prevent foot injury and damage.
Innovation Solution
A roller design featuring a resiliently arranged enclosing part with a pivotable section aligned parallel to the wheel axle and transverse to the direction of travel, allowing it to deviate partially or completely during collisions, and constructed from materials like rubber or thermoplastic for elastic yield, providing protection and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the enclosing part is made rigid to provide protection, then protection against damage is improved, but the ability to deflect during collision with rising surfaces deteriorates
Solution Approach 1:
The enclosing part is divided into a first part and a second part that can pivot relative to each other about a pivot axis. The first part provides rigid protection while the second part can deflect during collision with rising surfaces, resolving the contradiction between strength and adaptability.
Solution Approach 2:
The enclosing part transitions from a static rigid structure to a dynamic structure with a pivotable second part. This allows the enclosing part to adapt its configuration during operation, maintaining protection while enabling deflection during collisions with rising surfaces.
2Reliability
If the enclosing part is made completely rigid to ensure foot protection, then safety is improved, but the ability to move out of collision position deteriorates
Solution Approach 1:
The enclosing part is segmented into a first part that remains relatively fixed to maintain foot protection and a second part that can pivot to move out of collision positions. This segmentation allows the structure to maintain reliability while improving ease of operation during collisions.
Solution Approach 2:
The enclosing part incorporates dynamic movement capability through the pivotable second part, allowing it to transition from a static protective barrier to a dynamic structure that can actively move out of the way during collisions with rising surfaces.
3Reliability
If the lower edge of the enclosing part rises toward the first side to maintain foot deflection function, then foot protection is improved, but the distance to the floor surface increases reducing effectiveness
Solution Approach 1:
The lower edge of the enclosing part is designed to dynamically adjust its position. During normal operation, it maintains a raised position to deflect feet, but during collision with rising surfaces, the pivotable second part allows it to lower and move out of the collision path, resolving the contradiction between foot protection and collision avoidance.
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 design effectively deflects the enclosing part during transitions from flat to sloping surfaces, preventing collisions and maintaining user safety by ensuring the roller remains rotatable and protecting the wheel from damage, with the enclosing part returning to its original position after stress removal.
Implementation Method 1
The movable section of the enclosing part is arranged resiliently or is formed directly from a spring or a spring material, as a resilient section of the enclosing part... moves back into the starting position after the stress has been removed
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a roller (1) comprising a wheel (2) and a fork (3). The wheel (2) has a first side (5) which extends in the movement direction (r) or opposite the movement direction (r) and a second side (6) which extends transversely to the movement direction (r). Additionally, the wheel (2) is surrounded by an enclosing part (8) which is secured to the fork (3). The aim of the invention is to provide a roller of the aforementioned type with an inexpensive design with an advantageous enclosing part. According to the invention, this is achieved in that the enclosing part (8) surrounds the wheel (2) in any case on the first side (5) and with an overlap over the second side (6) on a circumferential plane which runs perpendicularly to a vertical (y) running through the fork (3) during a conventional operation of the roller (1), and the enclosing part (8) or a portion (10) of the enclosing part (8) can be moved relative to the fork (3) with a vertical movement component.