Replacement Lead Case With Sliding Pivot Lid for Controlled Extraction
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Solution Overview
Problem
Conventional replacement lead cases require tilting the case body to extract leads, leading to unintended lead dispersion and difficulty in controlling the number of leads dispensed.
Innovation Solution
A replacement lead case design featuring a case body with a bendable thin-walled portion and a lid body that pivots upon sliding, allowing controlled lead extraction without tilting, using guides and sliding members to manage lead exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the case body is tilted to extract replacement leads using gravity, then the leads can be taken out from the outlet, but the operation becomes complex and uncontrollable causing leads to scatter or come out in large quantities
Solution Approach 1:
The lid body is designed to pivot dynamically from a closed position to an open position through a sliding motion along the cover member. This dynamic mechanism allows the lid to automatically open when slid, providing easy lead extraction without requiring the user to tilt the entire case body, thus simplifying the operation while maintaining control over the extraction process
Solution Approach 2:
The case is divided into functional segments: the case body, the lid body, and the cover member. The lid body can be independently opened by sliding along the cover member, separating the opening operation from the case body orientation. This segmentation allows the user to extract leads without tilting the case, reducing operational complexity
2Ease of operation
If the case body is tilted to extract leads, then leads come out due to gravity, but unintended lead dispersion and breakage occur
Solution Approach 1:
The lid body pivots from a closed to an open position through a controlled sliding motion, providing a stable platform for lead extraction. This dynamic opening mechanism eliminates the need to tilt the case body, preventing unintended lead dispersion and breakage that occurs during tilting operations
Solution Approach 2:
The cover member acts as an intermediary structure that guides the lid body's sliding motion and provides a stable interface for lead extraction. This intermediary component ensures controlled lead exposure without the harmful effects of case body tilting
3Adaptability or versatility
If the lid body is detachably attached to the case body opening, then the opening area can be adjusted, but the structure becomes more complex
Solution Approach 1:
The lid body is designed to slide along the cover member from a closed position to an open position, providing dynamic adjustment of the opening area. This sliding mechanism allows the opening to be adjusted as needed while maintaining a relatively simple structure compared to detachable connections
Solution Approach 2:
The lid body serves multiple functions: it covers the opening when closed, provides an adjustable opening when slid, and guides the extraction process. This multi-functionality reduces the need for separate components, simplifying the overall structure while maintaining adaptability
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 easy and controlled lead extraction, preventing lead scatter and breakage, while reducing the risk of static adhesion and improving manufacturing efficiency.
Implementation Method 1
a sliding body in contact with the guide is formed on either one or the other, and with the sliding action of advancing the lid body of the case body from the tip of the cover member, the sliding contact of the sliding body against the guide causes the lid body to pivot
Implementation Method 2
a case part is on the rear side via a bendable thin-walled portion placed near the tip of the rear plate in the longitudinal direction, and with the sliding action of advancing the lid body of the case body from the tip of the cover member, the sliding contact of the sliding body against the guide causes the lid body to pivot to warp the lid body toward the rear plate through the thin-walled portion
Data Source
AI summary
A replacement lead case includes a case body that forms an inner space surrounded by a rear surface plate and right and left leg plates as a replacement lead accommodation room and has a lid body on the tip end thereof and a case part on a rear part thereof via a bendable thin part provided on the rear surface plate, and a cover member that has a U-shaped cross-section orthogonal to a longitudinal direction molded by a front surface plate and right and left outer leg plates covers the replacement lead accommodation room on a case body with the front surface plate and slidably supports the case body in the longitudinal direction with the leg plates positioned on the inside of the outer leg plates. A rail-shaped guide is formed on the lid body along the longitudinal direction, and the cover member includes a slider that contacts the guide.