Directional Braking System for Printer Configuration Transitions
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Solution Overview
Problem
Existing printing devices face challenges in smoothly transitioning between configurations due to inadequate control over rotational movements, often resulting in inefficient braking systems that fail to provide consistent damping forces in both directions of rotation.
Innovation Solution
A braking system comprising a support structure with pivotable gear wheels connected to directional dampers, allowing free rotation in one direction and providing damping force in the opposite direction, with gear engagement mechanisms that enable controlled transitions between configurations by varying the engagement of toothed portions on a gear piece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a braking system uses a single damping mechanism for rotational transitions, then the structure is simple, but it cannot provide consistent damping forces in both directions of rotation
Solution Approach 1:
The braking system is segmented into multiple independent damping mechanisms (first damping mechanism and second damping mechanism), each responsible for controlling rotation in opposite directions. This segmentation allows each mechanism to be optimized for its specific directional control while maintaining overall system simplicity
Solution Approach 2:
The system uses asymmetric damping mechanisms where the first damping mechanism provides damping force in one rotational direction while the second damping mechanism provides damping force in the opposite direction. This asymmetric arrangement enables consistent damping control in both directions without requiring a complex universal mechanism
2Reliability
If the braking system provides strong braking force in all directions, then rotational transitions are well-controlled, but operator strain increases
Solution Approach 1:
The braking system applies local quality by providing damping force only when needed in specific rotational directions. The first damping mechanism activates only during rotation in its designated direction, and the second damping mechanism activates only during rotation in the opposite direction, avoiding unnecessary braking forces that would increase operator strain
Solution Approach 2:
The system dynamically engages and disengages damping mechanisms based on the direction of rotation. The directional clutches automatically activate the appropriate damping mechanism when rotational motion occurs in the corresponding direction, providing reliable control only when needed rather than continuously resisting motion
3Reliability
If the gear engagement mechanism uses continuous toothed portions, then engagement is always maintained, but the system cannot transition between configurations
Solution Approach 1:
The system extracts or removes portions of the toothed portions to create toothless portions on the gear piece. This extraction allows the gear wheels to disengage from the gear piece during configuration transitions, enabling the system to change configurations while maintaining reliable engagement during stable configurations
Solution Approach 2:
The gear engagement mechanism operates periodically, alternating between engaged and disengaged states. During stable configurations, the gear wheels are engaged with the toothed portions for reliable positioning. During transitions, the gear wheels disengage by passing over toothless portions, allowing configuration changes before re-engaging in the new position
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 system effectively controls the rotational transitions by providing differential braking forces, ensuring smooth and controlled pivoting motions between configurations, thereby preventing damage and reducing operator strain during printer operations.
Implementation Method 1
a first damping mechanism (104) connected to the first gear wheel (103) so as to provide a damping force to inhibit rotation of the first gear wheel (103) in a first direction
Implementation Method 2
providing a damping force to inhibit rotation
Data Source
AI summary
An example braking system is described including a support structure which is pivotable about a first axis and a braking mechanism including a gear engagement mechanism which is fixed with respect to the first axis. The gear engagement mechanism may have a first and a second toothed portion, a first gear wheel rotatable about a second axis, and a second gear wheel rotatable about a third axis. The first gear may be connected to a first damping mechanism to damp pivoting of the support structure in a first direction when the first gear wheel is engaged with the first toothed portion. The second gear wheel may be connected to a second damping mechanism to damp pivoting of the support structure in a second direction when the second gear wheel is engaged with the second toothed portion. A print target holder system and a printer system are also described.