Swing Guide Mechanism for Skew Correction in Transport Devices
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Solution Overview
Problem
Existing transporting devices face challenges in correcting the skew of media with varying basis weights, particularly those with large basis weights, due to insufficient guide path intervals, leading to potential jams and inefficient skew correction.
Innovation Solution
A transporting device with a guide path that includes a first guide portion and a second guide portion, both configured to swing, which are initially at a standby position and move to adjust the medium's transporting state, allowing for a curved transporting path that widens the distance between the guide surfaces to accommodate different bending tendencies of media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the guide path has a wide interval between guide members to correct skew of medium with large basis weight, then the skew correction ability is improved, but the medium with small basis weight curls and may be caught on the transporting surface causing jams
Solution Approach 1:
The guide path is designed with movable guide members that can dynamically adjust the interval width. The guide members are configured to swing between a first position (narrow interval) and a second position (wide interval), allowing the system to adapt the guide path geometry based on the medium characteristics being processed
Solution Approach 2:
The physical parameter of the guide path (interval width) is changed by moving the guide members between different positions. This parameter change allows the same guide path structure to accommodate different medium types - narrow interval for small basis weight media and wide interval for large basis weight media
2Reliability
If the guide path has a narrow interval to prevent curling of medium with small basis weight, then jam occurrence is reduced, but the skew correction ability for medium with large basis weight deteriorates
Solution Approach 1:
The guide members are designed to be movable rather than fixed, enabling the system to switch between narrow and wide interval configurations. This dynamic adjustment capability allows the guide path to optimize for either jam prevention or skew correction depending on the medium being processed
Solution Approach 2:
The guide path structure serves multiple functions by adjusting its configuration. It can function as a narrow-interval guide for preventing curls in small basis weight media, and as a wide-interval guide for correcting skew in large basis weight media, making it a universal solution for different medium types
Data Source
AI summary
The transporting device includes a transporting path on which a medium recorded by the recording portion is transported in a transporting direction, and a contact portion that comes in contact with a front end of the medium, which is transported through the transporting path, to adjust a transporting state of the medium is adjusted. The transporting path has a guide portion that guides the medium to be transported to the contact portion, the guide portion has a first guide portion that is configured to swing, and a second guide portion that faces the first guide portion and is configured to swing, and the first guide portion and the second guide portion are disposed at a standby position when the medium is not transported through the transporting path, and are configured to move in directions away from each other from the standby position.