Conveyance Belt Guide Motion at Joints to Prevent Paper Jams
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Solution Overview
Problem
Conveyance devices with conveyance belts having joints face challenges in maintaining a consistent distance between the conveyance belt surface and the guide, leading to potential paper jams or conveyance failures due to the non-uniform shape of the belt at the joint.
Innovation Solution
The implementation of a conveyance device that includes a conveyance belt with a joint, a guide, and a rotator. The rotator contacts the conveyance surface, and the guide displaces perpendicular to the conveyance surface in conjunction with the rotator's displacement at the joint, allowing for a reduced distance between the belt surface and the guide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between the leading end of the guide and the surface of the conveyance belt is reduced to prevent sheet entry, then paper jam is prevented, but the sheet cannot be satisfactorily transferred between the guide and the conveyance belt
Solution Approach 1:
The guide's movable design allows it to adjust its position dynamically. During normal operation when the joint is not present, the guide maintains a small distance to prevent sheet entry. When the joint approaches, the guide moves upward to accommodate the joint's protrusion, ensuring smooth sheet transfer without interference
2Ease of repair
If the conveyance belt is made as an endless belt with a joint to facilitate replacement and maintenance, then component maintenance becomes easier, but the shape of the conveyance belt becomes non-uniform at the joint portion
Solution Approach 1:
The joint portion is extracted as a separate, identifiable feature of the conveyance belt. By recognizing the joint as a distinct element with different shape characteristics, the system can specifically address it through the movable guide mechanism, allowing the belt to maintain its endless structure for easy replacement while accommodating the non-uniform joint shape
Data Source
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AI summary
A conveyance device (10) includes a conveyance member (18, 19), a guide (29), and a rotator (40A, 40B). The conveyance member (18, 19) has a conveyance surface with a joint, the conveyance member (18, 19) to convey an object to be conveyed, with the object on the conveyance surface. The guide (29) approaches the conveyance surface and guides the object from or to the conveyance member. The rotator (40A, 40B) contacts the conveyance surface (18a). The guide (29) displaces in a direction perpendicular to the conveyance surface, in conjunction with displacement of the rotator when the rotator contacts the joint.