Power Slide Window Coupling Structure for Cable Synchronization
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Solution Overview
Problem
Conventional power slide windows require complex assembly and synchronization of upper and lower drive cables, necessitating four pulleys and intricate adjustments to ensure smooth sliding motion, which complicates the assembly process.
Innovation Solution
A power slide window design featuring a coupling structure between two pulleys that allows for adjustable relative rotational angles, enabling synchronized winding and unwinding of upper and lower drive cables, reducing the number of pulleys required and simplifying assembly, with the pulleys disposed coaxially to an output shaft for a compact unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two pulleys are joined integrally to synchronize winding and unwinding of upper and lower cables, then synchronized movement is achieved, but assembly becomes highly complex requiring fine adjustment of relative rotational angles
Solution Approach 1:
The pulley system is divided into two separate pulleys (first pulley for upper cables, second pulley for lower cables) instead of one integral pulley. Each pulley can be assembled independently, then connected through a coupling structure that allows adjustment of relative rotational angles, simplifying the assembly process while maintaining synchronization capability
Solution Approach 2:
A coupling structure is introduced as an intermediary element between the two separate pulleys. This coupling structure enables the pulleys to be connected while allowing adjustment of their relative rotational angles, serving as a mediator that resolves the conflict between maintaining synchronization and simplifying assembly
2Adaptability or versatility
If four cables (two upper and two lower) are used to drive the slide panel in multiple directions, then sliding capability is improved, but the number of pulleys required increases to four
Solution Approach 1:
Each pulley is designed to handle multiple cables simultaneously (the first pulley handles both upper cables, the second pulley handles both lower cables). This multi-functional design allows two pulleys to perform the work of what would otherwise require four separate pulleys, reducing device complexity while maintaining full sliding capability in multiple directions
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
Facilitates easy assembly and synchronized movement of upper and lower drive cables, allowing the slide panel to slide smoothly in both lateral and fore-and-aft directions, improving aesthetic appearance and commercial acceptability by minimizing panel surface unevenness.
Implementation Method 1
a first pulley (40) configured to be rotatably driven by the drive source to wind and unwind the upper drive cable, a second pulley (50) configured to be rotatably driven by the drive source to wind and unwind the lower drive cable
Data Source
AI summary
Provided is a power slide window which can synchronize the winding and unwinding movements of the upper drive cables and the lower drive cables, and can be assembled with ease. The power slide window (1) includes an upper drive cable (10U) connected to an upper part of the slide panel and extending from the slide panel in a lateral direction along a surface of the window glass pane, a lower drive cable (10D) connected to a lower part of the slide panel and extending from the slide panel in the lateral direction along the surface of the window glass pane, a first pulley (40) configured to be rotatably driven by the drive source to wind and unwind the upper drive cable, a second pulley (50) configured to be rotatably driven by the drive source to wind and unwind the lower drive cable, and a coupling structure (60) provided between the first pulley and the second pulley to allow the first pulley and the second pulley to be joined to each other at a selected relative angular relationship.