Linear Motion Guide Wiper with Spring-Biased Latch
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Solution Overview
Problem
Conventional linear motion guide devices require significant time and tools to attach or detach dust proof seals and wipers, which are solidly secured with multiple fasteners, making the process inefficient.
Innovation Solution
A linear motion guide apparatus with a wiper featuring a channel for engaging the guide rail, a catch for anchoring to the end cap, and a spring-biased latch for detachable positioning, allowing easy attachment and detachment without additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dust proof seals and wipers are solidly secured with multiple fasteners, then reliability of sealing is improved, but time required for attachment and detachment increases
Solution Approach 1:
The wiper assembly is segmented into modular components: the wiper body with integrated catching member, the end cap with receiving structure, and the fastening mechanism with latch and snap-fit features. This segmentation allows the wiper to be quickly attached and detached as a complete unit without manually removing multiple fasteners, resolving the contradiction between secure sealing and quick replacement.
Solution Approach 2:
The catching member and latch mechanism are pre-configured in specific positions and orientations before assembly. The latch is preliminarily positioned to engage with the end cap, and the catching member is pre-shaped to fit the receiving structure. This preliminary configuration enables rapid attachment by simply aligning and snapping the components together, eliminating the need for time-consuming fastener operations while maintaining reliable sealing.
2Stability of the object's composition
If multiple fasteners are used to secure the wiper, then stability of the wiper attachment is improved, but ease of operation deteriorates
Solution Approach 1:
The fastening mechanism is designed to be self-servicing through spring-loaded latch members that automatically engage with corresponding recesses in the end cap. The snap-fit catching member self-aligns and secures itself without requiring manual manipulation of multiple fasteners. This self-service mechanism maintains stable attachment while dramatically improving ease of operation, as users only need to press a single release point to detach the entire wiper assembly.
Solution Approach 2:
The latch mechanism acts as an intermediary between the wiper body and the end cap, providing a simplified interface for secure attachment. Instead of directly managing multiple fasteners, the latch mediates the connection by engaging with a single recess in the end cap, translating complex multi-fastener securing into a simple single-action operation that maintains stability while improving ease of use.
3Manufacturing precision
If conventional fastening methods are used, then manufacturing precision of the seal is improved, but productivity of maintenance operations deteriorates
Solution Approach 1:
The fastening mechanism employs a nested structure where the latch is housed within the wiper body, the catching member is integrated into the end cap, and spring elements are nested within dedicated cavities. This nested arrangement maintains precise manufacturing tolerances for the sealing surfaces while enabling rapid maintenance operations, as the nested components are pre-assembled and function as an integrated quick-connect system that eliminates time-consuming fastening procedures.
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
Enables quick and tool-free attachment and detachment of the wiper, improving operational efficiency and reducing the time required for maintenance.
Implementation Method 1
including at least one spring-biased latch extended from the wiper for resiliently engaging with the end cap
Implementation Method 2
The wiping member includes an inclined surface formed in the inner peripheral flange for forming a resilient structure to the inner peripheral flange of the wiper
Data Source
AI summary
A linear motion guide device includes a slider slidably attached onto a guide rail, an end cap and a wiper attached to the slider, the wiper includes one or more catches engaged with the end cap for anchoring the wiper to the end cap, and includes one or more spring-biased latches for resiliently engaging with the end cap and for detachably anchoring the wiper to the end cap and for allowing the wiper to be easily and readily attached to the end cap or disengaged from the end cap without additional tools, the wiper includes one or more levers for resiliently supporting the spring-biased latch.