Sheet Guide Device with Counterbalance for Corner and Edge Stapling
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Solution Overview
Problem
Existing printing devices with integrated staplers face challenges in efficiently guiding stacks of sheets for both corner and edge stapling, as they often require manual adjustment and may impede the stapling process depending on the orientation of the stack.
Innovation Solution
A sheet guide device with a housing and guide member that transitions between states using a counterbalance component, such as a counterweight or torsion spring, to selectively guide stacks for corner or edge stapling, allowing the guide arm to protrude or retract based on the stack's orientation, ensuring proper alignment without obstructing the stapling process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed guide member is used for corner stapling, then corner stapling is achieved, but edge stapling is impeded
Solution Approach 1:
The guide member is designed to be dynamic rather than fixed, allowing it to automatically change position between corner and edge stapling modes. The guide arm can pivot between a first position for corner stapling and a second position for edge stapling, eliminating the need for manual adjustment while maintaining adaptability to different stapling requirements.
Solution Approach 2:
The guide member automatically adjusts its position based on the stapling operation being performed. Through the counterbalance mechanism and gravitational force, the guide arm self-adjusts between positions without requiring user intervention, making the system self-serving and improving ease of operation.
2Manufacturing precision
If a guide member is used for corner stapling, then alignment is improved, but edge stapling is obstructed
Solution Approach 1:
The guide member transitions from a static alignment structure to a dynamic one that can assume different configurations. The guide arm pivots to provide alignment guidance for corner stapling in the first position and retracts or repositions to clear the path for edge stapling in the second position, thus maintaining alignment precision while enabling versatility.
Solution Approach 2:
The guide member is segmented into movable components, specifically the guide arm that can independently pivot relative to the housing. This segmentation allows the guide surface to provide alignment when needed while the guide arm can be positioned out of the way for edge stapling operations, resolving the conflict between alignment and versatility.
3Measurement precision
If manual adjustment of guide member is required, then stapling accuracy is maintained, but user burden increases
Solution Approach 1:
The guide member incorporates a counterbalance mechanism with gravitational force that enables automatic positioning. The guide arm naturally settles into the correct position for the intended stapling operation without requiring the user to manually adjust it, thereby maintaining precision while eliminating user burden.
Solution Approach 2:
A counterbalance component is integrated into the guide member mechanism to offset the weight of the guide arm. This counterbalance, combined with gravitational force, creates a self-adjusting system where the guide arm automatically moves to appropriate positions, reducing the effort and complexity of manual adjustment for the user.
4Ease of operation
If guide member remains in corner stapling position, then corner stapling is facilitated, but edge stapling is blocked
Solution Approach 1:
The guide member is designed with dynamic positioning capability, allowing the guide arm to pivot between a first position that facilitates corner stapling and a second position that enables edge stapling. This dynamic adjustment ensures that the guide member does not remain fixed in one position, thereby maintaining ease of operation for corner stapling while enabling versatility for edge stapling.
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
Enables seamless transition between corner and edge stapling without user intervention, improving usability and efficiency by automatically adjusting the guide member's position based on the stack's presentation, ensuring accurate stapling without manual toggling or additional instructions.
Implementation Method 1
a counterbalance component that shifts a center of gravity of the guide member in a first direction, such that the guide arm is raised due to gravity when in a first state
Implementation Method 2
A torsion spring may be disposed with the cylinder shaft to provide a return force to the guide member
Data Source
AI summary
An example sheet guide devices comprises a housing and a guide member coupled to the housing. The housing is to receive a stack of sheets to staple. The guide member includes a cylinder shaft, a counterbalance component, and guide arm. The cylinder shaft is rotatable and disposed within the housing. The counterbalance component is disposed with the cylinder shaft to shift a center of gravity of the guide member in a first direction. The guide arm is disposed off-center from a central axis of the cylinder shaft in a second direction.