Rotary Advancing Container with Non-Circular Threaded Rod
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Solution Overview
Problem
Existing rotary advancing containers for stick-like makeup and writing implements require complex assembly and are not sealed, lacking a simple configuration for filling and advancing materials effectively.
Innovation Solution
A rotary advancing container design featuring a cylindrical front and rear barrel, a holding member, and a threaded rod with a non-circular shape, allowing for axial movement of a stick-like member through rotation, with a simple assembly and sealed structure to accommodate and advance materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary advancing mechanism is used to advance stick-like members, then the advancing function is improved, but the device complexity increases due to many parts and complicated assembly work
Solution Approach 1:
The patent merges the advancing mechanism components into an integrated structure where the barrel (10) contains both the holding member (16) and threaded rod (18) as unified functional elements. The threaded rod is screwed into the barrel to form a combined advancing assembly, reducing the number of separate parts and simplifying assembly operations while maintaining the rotary advancing function.
Solution Approach 2:
The barrel (10) serves multiple functions: it acts as the container housing, the rotating element for advancement, and the mounting structure for the holding member and threaded rod. This multi-functionality reduces the overall number of components needed in the advancing mechanism.
2Reliability
If a sealed container structure is implemented to accommodate material, then the sealing performance is improved, but the ease of manufacture deteriorates due to more complex assembly requirements
Solution Approach 1:
The stick-like member (14) is pre-formed and loaded into the holding member (16) before final assembly. The holding member is then installed in the barrel, creating a pre-assembled unit that simplifies the overall assembly process while maintaining the sealed structure integrity.
Solution Approach 2:
The holding member (16) is inserted inside the barrel (10), and the stick-like member (14) is held within the holding member, creating a nested structure. This nesting approach allows the sealed container to accommodate the material while maintaining a compact design that does not significantly increase assembly complexity.
3Ease of manufacture
If a simple configuration with few components is used, then the ease of manufacture is improved, but the sealing performance deteriorates
Solution Approach 1:
The barrel (10) is designed as a sealed container with a closed structure that provides effective sealing. The barrel's cylindrical shape with closed ends creates a simple yet effective sealed environment for accommodating the stick-like member, achieving good sealing performance without requiring complex multi-layer structures.
4Measurement precision
If a non-circular shaped stick-like member is used for rotary advancement, then the advancing precision is improved, but the device complexity increases
Solution Approach 1:
The stick-like member (14) is given a non-circular cross-sectional shape (such as elliptical or polygonal) that engages with the threaded rod (18). This asymmetric shape prevents rotational movement of the stick-like member itself while allowing the threaded rod to rotate and advance it axially, achieving precise advancement control without requiring complex additional mechanisms.
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 design enables a simple, sealed configuration for advancing stick-like members with a small number of components, providing a clicking mechanism for precise advancement and maintaining an airtight seal, enhancing usability and assembly efficiency.
Implementation Method 1
a threaded rod that is screwed into an interior part of the rear barrel, wherein the stick-like member having a non-circular shape is moved in an axial direction relative to the front barrel by rotating the front barrel relative to the rear barrel
Data Source
AI summary
A rotary advancing container includes: a cylindrical front barrel; a cylindrical rear barrel arranged in a rear of the front barrel so as to be rotatable relative to the front barrel; a holding member inserted inside the front barrel or the rear barrel to support a stick-like member; and a threaded rod that is screwed into an interior part of the rear barrel. The stick-like member having a non-circular shape is moved in an axial direction relative to the front barrel by rotating the front barrel relative to the rear barrel, a front end of the threaded rod is formed in approximately the same shape with the rod-like member, and, a rear side portion of the threaded rod has a non-circular shape and is formed with a thread.