Extensible Lock Pull With Sliding Groove for Suitcase Expansion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing slide fasteners with integral lock heads cannot accommodate the variable position requirement of lock heads in suitcases with expansion functions, leading to poor connection with combination locks due to fixed lock head positions and potential misalignment issues.
Innovation Solution
An extensible lock pull with a sliding groove and position limiting buffer member allows the lock head to move within the groove, enabling variable positioning and secure attachment through a sliding link or direct connection, using metal and plastic/rubber components for durability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the lock head is integrally formed at the outer end of the pull, then the structure is simple and manufacturing is easy, but the position of the lock head cannot be adjusted to accommodate expansion function requirements
Solution Approach 1:
The pull is divided into separate components: a pull body and a lock head connected through a sliding mechanism. The lock head can move independently within the pull body along the sliding groove, allowing position adjustment while maintaining a relatively simple overall structure.
Solution Approach 2:
The lock head transitions from a fixed integral position to a movable position through the sliding groove mechanism. This dynamic adjustment capability allows the lock head to adapt to different distances required for expansion and non-expansion states of the suitcase.
2Stability of the object's composition
If the lock head position is fixed, then the structure is stable and simple, but the lock head cannot be inserted into the combination lock well when sewing position deviates
Solution Approach 1:
The lock head is designed to move along the sliding groove within the pull body, providing adjustment capability to compensate for sewing position deviations. This maintains structural stability while improving ease of operation and connection reliability.
3Adaptability or versatility
If the lock head is movably connected to allow position adjustment, then adaptability to expansion function is improved, but the structure becomes more complex
Solution Approach 1:
The pull is segmented into a pull body and a movable lock head connected through a sliding groove mechanism. This segmentation allows the lock head to move independently for position adjustment while keeping the overall structure relatively simple and manageable.
Solution Approach 2:
A sliding groove mechanism acts as an intermediary between the pull body and the lock head, enabling smooth movement and position adjustment. This intermediary structure simplifies the connection and reduces overall system complexity compared to more complex adjustment mechanisms.
4Adaptability or versatility
If a sliding mechanism is introduced to allow lock head movement, then position adjustability is improved, but the number of parts and assembly complexity increases
Solution Approach 1:
The pull assembly is segmented into modular components (pull body, lock head, sliding groove) that can be manufactured separately and assembled. This segmentation facilitates easier manufacturing and assembly while providing the required position adjustability.
Data Source
AI summary
An extensible lock pull includes: a pull main body including, at one end thereof, a slider connecting portion; a lock head; and a position limiting buffer member. The pull main body is provided with a sliding groove extending along a length direction thereof. The lock head is movably connected to the sliding groove along an extending direction of the sliding groove. The pull main body is provided with an attachment opening portion in communication with the sliding groove at an end of the sliding groove. The lock head is connected to the sliding groove through the attachment opening portion. The position limiting buffer member is fixed to the pull main body and blocks the attachment opening portion. The pull main body and the lock head are both metal parts. The position limiting buffer member is a plastic part or a rubber part.