Vehicle Slide Door Guide Pulley Cable Assembly
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Solution Overview
Problem
Existing slide door apparatuses for vehicles face challenges in accurately and efficiently assembling cables on guide pulleys, leading to potential misalignment and complexity in the assembly process.
Innovation Solution
The introduction of a separating member with a body portion and leg portions that separates the groove portions of guide pulleys, preventing the cables from being dislocated or misassembled, and allowing for independent rotation of pulley members to facilitate accurate cable placement and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the guide pulleys are assembled with multiple groove portions without separation, then the structure is simpler, but the cables may be dislocated or misassembled leading to assembly errors
Solution Approach 1:
The guide pulley unit is segmented into multiple independent guide pulleys, each with specific groove portions. The separating member divides the groove portions into first and second groups, allowing cables to be assembled into correct grooves without confusion. This segmentation prevents misassembly while maintaining structural organization.
Solution Approach 2:
A separating member is introduced as an intermediary component between the first and second groove portions of the guide pulleys. This separating member physically guides the cables into their correct groove portions during assembly, preventing dislocation and misassembly errors without requiring complex assembly procedures.
2Ease of operation
If the cables are allowed to move freely on the guide pulleys, then the operation is more flexible, but the cables may become dislocated from their proper paths
Solution Approach 1:
Each guide pulley has different groove portions with specific local qualities - some grooves are designed to accommodate specific cables based on their position and function. The separating member creates localized constraints that guide cables into their proper grooves while allowing movement within those constrained paths, maintaining both flexibility and precision.
Solution Approach 2:
The separating member acts as a mediator that allows cable movement while preventing dislocation. It creates a controlled environment where cables can move freely within their designated groove portions but are prevented from moving into incorrect grooves, thus maintaining alignment precision during operation.
3Reliability
If a complex assembly process is used to prevent cable misassembly, then the assembly accuracy is improved, but the assembly time and complexity increase
Solution Approach 1:
The guide pulley unit with separating member provides self-service during assembly by automatically guiding cables into their correct groove portions through the physical structure of the separators. This eliminates the need for complex assembly procedures or specialized training, allowing workers to assemble cables quickly and correctly without time-consuming verification steps.
Solution Approach 2:
The separating member serves as a passive intermediary that performs the assembly guidance function automatically during the assembly process. It physically directs cables into correct grooves without requiring active intervention or complex procedures, significantly reducing assembly time while ensuring assembly correctness.
Data Source
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AI summary
A slide door apparatus for a vehicle includes a driving device (21) mounted to a slide door (20) and a guide pulley unit (25) mounted to the slide door. The guide pulley unit includes a plurality of guide pulleys (43, 44) each having first and second guide grooves (48a, 47a, 44b, 44a). The guide pulley unit further includes first and second housing members (41, 42) for housing the plurality of guide pulleys, and a separating member (45) provided between the first and second housing members for separating the first and second guide grooves of each of the plurality of guide pulleys. The slide door apparatus further includes a cable (22, 23) connected to the driving device and to a vehicle body. A first portion (22) of the cable is disposed into the first groove of each of the plurality of guide pulleys. A second portion (23) of the cable is disposed into the second groove of each of the plurality of guide pulleys.