Zero-Clearance Packaging for Drill Bits Using Integrated Elastic Walls
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Solution Overview
Problem
Conventional zero-clearance packaging sleeves for elongate objects like drill bits require additional elastic holding pads, increasing manufacturing costs and assembly complexity, and pose a risk of pad loss during opening, which compromises the secure storage of the object.
Innovation Solution
A packaging sleeve design featuring internal and external parts with integrated tension springs or elastic structures that compress the object along its longitudinal axis, eliminating the need for separate pads and ensuring zero clearance without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional elastic holding pads are used to achieve zero-clearance storage, then the object is securely held without vibration, but manufacturing costs increase and assembly complexity increases
Solution Approach 1:
The patent integrates the elastic holding function directly into the packaging sleeve walls through corrugated structures, eliminating the need for separate elastic holding pads. The corrugated walls themselves provide the elastic compliance needed to hold the object securely, merging the containment and cushioning functions into a single integrated structure.
Solution Approach 2:
The packaging sleeve walls serve multiple functions simultaneously: they provide structural containment, elastic cushioning, and vibration damping. The corrugated structure enables the walls to act as both rigid containers and flexible shock absorbers, eliminating the need for specialized additional components.
2Reliability
If additional elastic holding pads are used to achieve zero-clearance storage, then the object is securely held without vibration, but manufacturing costs increase
Solution Approach 1:
The elastic holding function is merged into the packaging sleeve walls through corrugated structures, eliminating the need for separate elastic holding pads. This integration reduces the total number of components and simplifies manufacturing processes.
Solution Approach 2:
The patent changes the structural parameters of the packaging sleeve walls by introducing corrugations, which transform rigid walls into elastic structures. This parameter change enables the walls to provide shock absorption and secure holding without requiring additional expensive elastic components.
3Manufacturing precision
If elastic holding pads are used in the packaging sleeve, then zero-clearance storage is achieved, but the risk of pad loss during opening increases
Solution Approach 1:
The holding function is merged into the packaging sleeve walls themselves through corrugated structures, eliminating separate pads that could be lost. The elastic walls maintain contact with the object throughout the opening/closing cycle, ensuring the object remains securely positioned without risking component loss.
4Reliability
If the packaging sleeve is closed tightly to achieve zero clearance, then the object is fixed without vibration, but the closure may open due to elastic clamping force
Solution Approach 1:
The patent segments the closure function from the elastic holding function. The closure mechanism handles sealing and retention, while the corrugated walls provide elastic cushioning. This segmentation allows the closure to be designed specifically for retention without being compromised by elastic forces.
Solution Approach 2:
The corrugated wall structures act as intermediaries between the closure and the stored object. They absorb elastic forces and distribute them evenly, preventing concentrated forces from compromising the closure while maintaining zero-clearance holding.
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 secure, vibration-free storage of elongate objects with reduced manufacturing costs and simplified assembly, while the integrated elastic structure acts as a shock absorber to prevent rattling and damage during handling.
Implementation Method 1
At least the interior of either the external or the internal part is equipped with a tension spring or elastic tension structure that urges an interior wall of each of the parts against an end of the object held in the packaging and in the direction of a longitudinal axis
Implementation Method 2
the integrated elastic structure acts as a shock absorber to prevent rattling and damage during handling
Data Source
AI summary
A zero-clearance packaging for elongate objects, in particular, elongate objects subject to fracture, comprises a packaging sleeve with internal and external parts with a closure disposed therebetween which makes it possible to push the parts together in telescope fashion and to hold the same in particular closed position, wherein at least one elastic tension structure is disposed in at least one of the parts, which stricture prestresses the parts in a closure direction of the packaging against the object stored in the packaging. The elastic tension structure comprises bellows formed by an axial pail of the wall of the parts.