Stapler Cycle Interrupter for Overhead Stapling
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Solution Overview
Problem
Conventional spring-powered staple guns require significant force to operate, especially when used at awkward or hard-to-reach locations, leading to user fatigue and potential misalignment of articles during stapling, particularly in applications like attaching insulation between overhead rafters or upholstering furniture.
Innovation Solution
A staple gun with a movable striker and force-providing mechanism that includes a cycle interrupter, allowing for manual actuation to release the interruption and enable stapling from a convenient position, with a mode selection control for precise alignment and reduced torque during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user depresses the handle against the spring force to activate the staple gun, then the staple is driven through the article and into the surface, but the user experiences fatigue and difficulty when working at awkward or overhead positions
Solution Approach 1:
The staple gun is cocked and loaded in advance at a convenient location where the user can easily apply force, then transported to the difficult-to-reach position for stapling. This preliminary preparation eliminates the need to apply large forces at awkward overhead positions.
Solution Approach 2:
The stapling process is divided into separate phases: cocking/loading at a convenient position, transportation to the target location, and final activation. This segmentation allows the force-intensive cocking operation to occur where the user has mechanical advantage, while the actual stapling occurs at the difficult position.
2Productivity
If the user applies force to activate the staple gun while holding the article in place, then the staple is driven through the article, but the article becomes misaligned and twisting occurs
Solution Approach 1:
The article is fully aligned with the surface and staple position before the user applies force to cock the staple gun. This preliminary alignment ensures that when the user subsequently applies force to activate the staple, the article remains properly positioned without twisting or misalignment.
Solution Approach 2:
The process separates alignment (performed before activation) from the force-intensive activation step. By completing alignment while the staple gun is uncocked and then cocking it at a convenient position, the user eliminates torque application during alignment-critical moments.
3Reliability
If the user needs to apply large force to activate the staple gun at awkward positions, then the staple can be driven in, but the user cannot generate sufficient force and fatigue sets in quickly
Solution Approach 1:
The staple gun is cocked and the spring is pre-loaded at a convenient position where the user can easily generate the required force. Once cocked, the staple gun is transported to the difficult-to-reach position where only a simple trigger pull is needed, ensuring reliable staple deployment without user fatigue.
Solution Approach 2:
The cycle interrupter mechanism acts as an intermediary that decouples the force-intensive cocking operation from the activation operation. The interrupter holds the cocked state, allowing the user to apply force at a convenient location and then simply trigger the staple release at the target location.
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 efficient stapling at difficult locations with reduced user fatigue and precise alignment, allowing the staple gun to be cocked and loaded in a convenient position before being moved to the target location, minimizing the need for excessive force and maintaining alignment during the stapling process.
Implementation Method 1
A force providing mechanism is also movable through a force applying cycle that includes a cocked position. The force providing mechanism provides a force for expelling a staple from the housing to apply a staple.
Data Source
AI summary
A stapler device and a method of stapling an article. The stapler has a striker and a spring for driving the striker to apply a staple. During the stapling cycle, the striker and spring are cocked and loaded prior to being release to apply the staple. While the stapler is in the cocked and loaded position the stapling cycle is automatically interrupted to maintain the spring and the striker in the cocked and loaded position. The stapler device may be then moved to a second location before the interruption is discontinued by an actuator. Once the stapling cycle is continued, the cocked and loaded striker and spring are released to apply a staple. The device is also selectively capable of a second mode of operation wherein the stapling cycle is not interrupted.