Self-standing Pen Case with Rotating Lid and Magnetic Fixation
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Solution Overview
Problem
Existing pen cases face issues such as reduced housing capacity when closed, instability as a pen stand, and difficulty in accessing small objects like erasers due to complex mechanisms and low stiffness in standing postures.
Innovation Solution
A self-standing housing body with a housing portion and a lid portion that rotate 180°, forming a joint axis, allowing stable standing without changing capacity, using magnetic interaction for fixation, and incorporating a bendable portion for easy object retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the case body is bent to enable self-standing function, then the pen case can be used as a penholder, but the housing capacity significantly decreases when closed
Solution Approach 1:
The case body is divided into a first case body and a second case body that can relatively move with respect to each other. The first case body has a first bottom surface for standing, while the second case body contains the writing material. This segmentation allows the case to maintain housing capacity when closed while enabling self-standing function when opened.
Solution Approach 2:
The second case body is configured to be relatively movable in a length changing direction with respect to the first case body. This dynamic configuration allows the case to transition between closed state (maintaining housing capacity) and open state (enabling self-standing function), resolving the contradiction between adaptability and volume.
2Adaptability or versatility
If the case body length is changed to enable self-standing, then the pen case can be used as a penholder, but objects may fall out due to momentum during length change
Solution Approach 1:
The case is segmented into first and second case bodies with distinct functions. The first case body provides structural stability with its bottom surface for standing, while the second case body houses the writing material. This segmentation isolates the moving part from the stable base, preventing objects from falling out during transitions.
Solution Approach 2:
The outlet/inlet port is positioned on the first case body rather than the second case body. This preliminary positioning ensures that when the second case body moves during length change, the outlet/inlet port remains stationary, preventing writing materials from accidentally falling out due to momentum.
3Adaptability or versatility
If a complex mechanism is used to change case body length, then self-standing function is achieved, but the housing capacity with respect to volume becomes smaller
Solution Approach 1:
The second case body is designed to be relatively movable in a length changing direction, creating a dynamic structure that can transition between different states. This dynamic design achieves self-standing function through simple relative movement rather than complex mechanisms, preserving housing capacity to volume ratio.
Solution Approach 2:
The first case body serves multiple functions: it provides the outer structure, contains the outlet/inlet port for material insertion/removal, and provides the bottom surface for self-standing. This multi-functionality eliminates the need for separate components, maximizing housing capacity while achieving self-standing capability.
4Volume of stationary object
If the opening/closing unit is at open position to increase housing capacity, then more writing materials can be housed, but the opening area becomes small making it difficult to access small objects
Solution Approach 1:
The case is divided into first and second case bodies with the outlet/inlet port on the first case body. This segmentation creates a dual-access system: the outlet/inlet port on the first case body provides large opening area for accessing small objects, while the second case body provides additional housing capacity when opened.
Solution Approach 2:
The outlet/inlet port is positioned on the lateral side of the first case body rather than only at the top. This dimensional change creates multiple access points, allowing users to access small objects from the side opening while maintaining full housing capacity in the second case body.
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 solution provides a stable and expandable pen case that maintains housing capacity, prevents objects from falling, and allows easy access to small items, with a short opening/closing distance and versatile usage as a penholder or makeup stand.
Implementation Method 1
using magnetic interaction for fixation
Data Source
AI summary
The present invention proposes a self-standing housing body solving a typical program and stably standing as a penholder. Specifically, the self-standing housing body according to the present invention is a self-standing housing body including a housing portion having a main housing space surrounded by a bottom surface and side surfaces standing from the bottom surface, and a lid portion having a sub-housing space surrounded by an upper surface and side surfaces standing from the upper surface. An upper side of one side surface of the housing portion and a lower side of one side surface of the lid portion form a joint portion, and about the joint portion as a rotation axis, the lid portion is rotatably joined to the housing portion. When the lid portion is rotated approximately 180° relative to the housing portion and the side surface of the lid portion substantially contacts the side surface of the housing portion, the upper surface of the lid portion and the bottom surface of the housing portion are substantially flush with each other. An upper end portion of the side surface of the housing portion does not reach the upper surface.