Rod-Shaped Object Feeding Container with Detachable Cartridge
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Solution Overview
Problem
Existing knock type rod-shaped object feeding containers require discarding the entire container after the rod-shaped content is used up, leading to a higher number of discarded parts, which is undesirable from an ecological perspective.
Innovation Solution
A rod-shaped object feeding container design featuring a detachable cartridge unit with a knock mechanism unit, where the cartridge unit can be easily replaced, reducing waste by allowing only the cartridge unit to be discarded and enabling the reuse of the knock mechanism unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the entire feeding container is discarded after the rod-shaped content is used up, then the container structure is simple and easy to manufacture, but the number of discarded parts increases and ecological sustainability deteriorates
Solution Approach 1:
The feeding container is divided into two main segments: a reusable knock mechanism unit and a disposable cartridge unit. The cartridge unit contains the rod-shaped content and can be easily detached and replaced, while the knock mechanism unit with its complex mechanisms (knock member, rotary member, spring member) is retained and reused. This segmentation allows only the simple cartridge unit to be discarded, reducing waste while maintaining manufacturing simplicity.
Solution Approach 2:
The invention implements a system where the cartridge unit is discarded after use and the knock mechanism unit is recovered for reuse. The coupling member enables easy attachment and detachment of the cartridge unit, facilitating the discard-and-recover cycle. This approach reduces the number of discarded parts by recovering the complex knock mechanism unit while discarding only the simple cartridge unit.
2Productivity
If the knock member is pressed to advance the rod-shaped object, then the rod-shaped object can be fed efficiently, but the mechanism complexity increases
Solution Approach 1:
The knock mechanism employs dynamic elements including a movable knock member that can be pressed, a rotary member that rotates in response to the pressing action, and a spring member that provides elastic recovery. These dynamic components work together to convert the pressing motion into rotational motion, which then drives the advancement of the rod-shaped object through the screw mechanism, achieving efficient feeding despite the increased mechanism complexity.
Solution Approach 2:
The coupling member acts as an intermediary between the knock member and the cartridge unit. It transmits the pressing force from the knock member through rotational motion to the female screw member, which then advances the movable body and rod-shaped object. This intermediary mechanism simplifies the overall system by providing a clear force transmission path while managing the complexity of the knock mechanism.
3Loss of substance
If the cartridge unit is made detachable and replaceable, then the number of discarded parts is reduced, but the coupling mechanism complexity increases
Solution Approach 1:
The feeding container is segmented into a reusable knock mechanism unit and a disposable cartridge unit connected by a coupling member. This segmentation allows the cartridge unit to be easily detached and replaced, reducing the number of discarded parts. The coupling member is designed to provide secure attachment while enabling simple detachment, balancing the need for durability with ease of replacement.
Solution Approach 2:
The coupling member is designed with multi-functionality, serving both as a structural connector between the cartridge unit and knock mechanism unit, and as a rotational coupling that enables the knock member to rotate the female screw member. This universal component handles multiple functions (connection, rotation, force transmission) while maintaining relative simplicity, avoiding excessive complexity in the detachable mechanism.
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
This design reduces the number of discarded parts and enhances usability by allowing the rod-shaped object to be fed and retracted efficiently through a knock operation, improving the container's ecological sustainability and user convenience.
Implementation Method 1
The spring member is configured to bias the coupling member and the knock member rearward
Implementation Method 2
The movable body has a gripping portion configured to grip the rod-shaped object and has a male screw at an outer peripheral portion thereof. The tubular female screw member has a female screw configured to be screwed to the male screw
Data Source
AI summary
A rod-shaped object feeding container includes a cartridge unit and a knock mechanism unit. The cartridge unit includes a movable body and a female screw member. The knock mechanism unit includes a coupling member, a knock member, a spring member, a main body tube, and a rotary member. When the knock member is pressed, the knock member converts a force with which the knock member is pressed into a rotational force and causes the coupling member and the female screw member to be rotated in one direction so as to advance the movable body and the rod-shaped object. When the rotary member is rotated relative to the main body tube in an opposite direction, the rotary member causes the coupling member and the female screw member to be rotated in the opposite direction so as to retract the movable body and the rod-shaped object.