Can Lid Guide Layout for Adjustable Length Without Strength Loss
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Solution Overview
Problem
Guidance devices for disc-shaped can lids face challenges in changing their full length without compromising strength, often resulting in reduced durability due to interference between guidance members.
Innovation Solution
The guidance device features upstream and downstream guidance parts with distinct circumferential positions, allowing for movement and overlap to adjust length, with fixed members and through holes for secure coupling, ensuring strength is maintained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If guidance members are arranged in line along the conveyance direction and moved to adjust the full length of the guidance device, then the adaptability of the device is improved, but the strength of the device is reduced due to hollow guide members being required to avoid interference
Solution Approach 1:
The patent transitions from a one-dimensional linear arrangement of guidance members to a two-dimensional radial arrangement around the conveyance route. By positioning guidance members at different circumferential positions rather than along the same axis, the device achieves length adjustability through radial distribution while avoiding the need for hollow members, thereby maintaining structural strength.
Solution Approach 2:
The patent employs nested guidance members where one guidance member is positioned inside another guidance member's radial space. The upstream-side and downstream-side guidance members are arranged concentrically with different circumferential positions, allowing them to occupy the same axial space without interfering with each other, thus eliminating the need for hollow structures.
2Reliability
If guidance members are positioned on the same axis to guide the disc-shaped member, then the guidance function is achieved, but interference between guidance members occurs when adjusting the device length
Solution Approach 1:
The patent introduces asymmetry in the circumferential positioning of guidance members. Instead of symmetric arrangement on the same axis, the upstream-side and downstream-side guidance members are positioned at different circumferential angles. This asymmetric radial distribution eliminates interference while maintaining effective guidance functionality.
Solution Approach 2:
The patent adds a circumferential dimension to the guidance member arrangement. By distributing members radially around the conveyance route at different circumferential positions rather than along a single linear axis, the system achieves guidance reliability without member interference during length adjustment.
Data Source
AI summary
An upstream-side guidance part 400 is provided with plural upstream-side guidance members 410 guiding disc-shaped members 300. A downstream-side guidance part 500 is provided with plural downstream-side guidance members 510 guiding the disc-shaped members 300. The positions of the upstream-side guidance members 410 in the circumferential direction of the disc-shaped member 300 are different from the positions of the downstream-side guidance members 510 in the circumferential direction of the disc-shaped member 300, and at least one of the upstream-side guidance part 400 and the downstream-side guidance part 500 is able to move forward and backward with respect to the other.