Ball Bearing Slide Assembly With Latching Positioning Member
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Solution Overview
Problem
Conventional ball bearing slide assemblies face difficulties in assembling the slide-aiding member due to the challenge of inserting the inner slide into an unfixed slide-aiding member, as the slide-aiding member tends to slide along the intermediate slide, making it hard to position correctly.
Innovation Solution
A positioning device is introduced, comprising a slide-aiding member with a latching slot and a positioning member that engages with the slide-aiding member to fix it to the second slide, allowing for secure assembly and disassembly by utilizing a plastic or elastic positioning member with specific structural features like protrusions and cutouts to facilitate locking and unlocking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the slide-aiding member is left unfixed during assembly, then the inner slide can be inserted freely, but the slide-aiding member slides along the intermediate slide and cannot be positioned correctly
Solution Approach 1:
The positioning member is pre-installed on the intermediate slide before the slide-aiding member is assembled. This preliminary action creates a predetermined positioning structure that guides and secures the slide-aiding member in the correct position during assembly, eliminating the positioning accuracy problem while maintaining ease of assembly.
Solution Approach 2:
The positioning member acts as an intermediary element between the intermediate slide and the slide-aiding member. It provides a mediating structure with positioning protrusions that engage with corresponding slots, ensuring accurate positioning without requiring complex fixed mechanisms that would complicate the assembly process.
2Manufacturing precision
If the slide-aiding member is fixed securely, then positioning accuracy is improved, but assembly and disassembly become more difficult
Solution Approach 1:
The positioning member is designed with elastic properties, allowing it to deform elastically during assembly to accommodate the slide-aiding member, and then return to its original shape to provide secure positioning. This dynamic characteristic enables easy assembly while maintaining accurate positioning, and allows for simple disassembly by applying force to overcome the elastic retention.
3Manufacturing precision
If a complex locking mechanism is used to fix the slide-aiding member, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The positioning function is segmented into simple geometric features: positioning protrusions on the positioning member and corresponding positioning slots on the slide-aiding member. This segmentation creates a straightforward engagement mechanism that ensures accurate positioning without requiring complex locking structures, maintaining simplicity while achieving the desired positioning precision.
Data Source
AI summary
A ball bearing slide assembly includes a first slide, a second slide slidably receiving the first slide, a slide-aiding member, and a positioning member slidably attached to the second slide. The slide-aiding member is slidably sandwiched between the first slide and the second slide. The slide-aiding member includes two arms each having a plurality of ball bearings installed therein for facilitating the sliding movement of the first slide relative to the second slide. The slide-aiding member defines a latching slot therein. The positioning member includes a positioning portion engagable in the latching slot of the slide-aiding member for fixing the slide-aiding member to the second slide.