Cap Unit Locking Member Prevents Erroneous Sliding
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Solution Overview
Problem
Conventional cap units have issues with the locking member sliding erroneously, leading to the cap body detaching from the container body, which complicates the structure and reduces usability.
Innovation Solution
A cap unit design with a locking member that includes a biasing mechanism and a cover part to prevent sliding during erroneous operations, featuring a simple and space-saving structure, where the locking member is prevented from sliding by abutting the container body during normal use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to prevent erroneous sliding of the locking member, then reliability is improved, but device complexity increases
Solution Approach 1:
The locking member utilizes the cap body and container body structure itself as the locking mechanism. The cover part of the locking member automatically engages with the container body when the cap is attached, preventing erroneous sliding without requiring external locking components. This self-service approach maintains reliability while avoiding additional complexity.
Solution Approach 2:
The locking function is merged with the existing cap body and container body structures. The cover part of the locking member and the container body form an integrated locking system where the container body serves dual purposes: as the vessel to be closed and as the locking surface for preventing erroneous operation.
2Reliability
If additional locking components are added to prevent erroneous sliding, then reliability is improved, but the product size increases
Solution Approach 1:
The locking member utilizes the cap body and container body structure itself as the locking mechanism. The cover part of the locking member automatically engages with the container body when the cap is attached, preventing erroneous sliding without requiring external locking components. This self-service approach maintains reliability while avoiding additional complexity.
3Device complexity
If the locking member structure is simplified to reduce parts, then device complexity is reduced, but reliability of preventing erroneous sliding deteriorates
Solution Approach 1:
The locking member utilizes the cap body and container body structure itself as the locking mechanism. The cover part of the locking member automatically engages with the container body when the cap is attached, preventing erroneous sliding without requiring external locking components. This self-service approach maintains reliability while avoiding additional complexity.
Solution Approach 2:
The biasing member acts as an intermediary element that provides the necessary force to maintain the locked state. By introducing this simple elastic component, the system achieves reliable locking stability without complex mechanical structures, as the biasing member mediates between the locking member and the container body to ensure proper engagement.
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
Prevents accidental detachment of the cap unit from the container body, enhancing usability and maintaining a compact design without additional components.
Implementation Method 1
a biasing member that biases the locking member toward one side in the sliding direction
Data Source
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AI summary
A cap unit possible to prevent the locking member from sliding in the mouth detachment mechanism upon an erroneous sliding operation of the locking member while having a space-saving and simple structure. A mouth detachment mechanism 18 has a locking member 19 slidably attached to the cap body 8, along with a biasing member 20 that biases the locking member 19 toward one side in the sliding direction, wherein, in a state in which the cap body 8 is attached to the container body 2, sliding of the locking member 19 toward the other side is prevented by a part 19b of the locking member 19 abutting the container body 2 during the sliding operation of the locking member 19.