Sheet Supply Roll Support and Height-Aligned Cart Transfer
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Solution Overview
Problem
Existing recording devices face challenges in efficiently handling rolls of varying widths and weights, particularly when manually transporting and positioning heavy rolls, leading to poor workability during attachment and removal processes.
Innovation Solution
A sheet supply device with a first and second roll support portion and a guide portion that allows for adjustable positioning and support of rolls, combined with a cart that supports rolls from below and includes a positioning mechanism, enabling easy attachment and removal of rolls without manual handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a roll with high weight is transported to the recording device, then the roll can be supplied to the device, but it cannot be carried directly by hands and requires a cart for transportation
Solution Approach 1:
A cart is introduced as an intermediary device to transport heavy rolls that cannot be carried directly by hands. The cart receives the roll and positions it at the recording device, eliminating the need for manual carrying of heavy objects.
2Weight of moving object
If the roll is placed on a cart for transportation, then heavy rolls can be moved, but the workability of roll attachment is poor
Solution Approach 1:
The cart is designed with a receiving portion that supports the roll at the same height as the first roll support portion of the recording device. This height alignment creates an equipotential condition, allowing the roll to be easily transferred from the cart to the recording device without requiring additional lifting or positioning operations, thereby improving attachment workability.
3Reliability
If the recording device includes a pair of holders that rotatably hold a paper core, then the roll can be supported, but the holder must be moved in width direction and inserted into the paper core which complicates the attachment process
Solution Approach 1:
The cart positions the roll in advance at the recording device with proper alignment before the holder insertion operation. The roll is pre-positioned such that the paper core is accessible and aligned with the holder, eliminating the need for complex manual positioning operations during attachment.
Solution Approach 2:
The cart acts as an intermediary that facilitates the attachment process by delivering the roll to the recording device in a pre-positioned state, making the subsequent holder insertion operation simpler and more straightforward.
4Adaptability or versatility
If the device handles rolls with varying widths and weights, then versatility is improved, but the complexity of positioning and alignment increases
Solution Approach 1:
By aligning the cart receiving portion height with the recording device roll support portion, the system creates a universal interface that works for rolls of varying widths and weights without requiring complex adjustment mechanisms. The height equipotential condition simplifies the positioning process regardless of roll specifications.
Data Source
AI summary
A sheet supply device that supplies a sheet from a roll, includes: a first roll support portion which rotatably supports the roll on one end side in a width direction of the roll; a second roll support portion which rotatably supports the roll on the other end side of the roll by opposing the first roll support portion; and a guide portion which extends in the width direction and movably supports the second roll support portion in the width direction; wherein below a first space in which the roll between the first roll support portion and the second roll support portion is installed, a second space into which a cart which transports the roll enters is formed.