Window Regulator Cable Support Integration

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Solution Overview

Problem

The manufacturing cost of window regulators is hindered by the need to fix the guide member to the guide rail using methods like welding, which increases complexity and cost.

Innovation Solution

A window regulator design that integrates the attached-member receiving portion with the guide rail, using a resin slide member and a cable support system that eliminates the need for separate components and welding, allowing the cable to slide and reducing manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the guide member is fixed to the guide rail using welding or rivets, then the structural stability is improved, but the manufacturing cost and process complexity increase

Engineering Contradiction:
Improvestructural stabilityVSAvoidmanufacturing cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The cable support is integrated directly into the guide rail structure, eliminating the need for separate guide members and their associated fixing processes. The guide rail itself forms the cable support structure, merging two previously separate components into one, thereby reducing manufacturing steps and cost while maintaining structural stability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cable support function is extracted from the guide member and incorporated directly into the guide rail design. This eliminates the need for the guide member as a separate component that requires fixing, thereby simplifying the manufacturing process and reducing cost while preserving the necessary structural support.

Inventive Principle:
Principle #2Taking out (Extraction)

2Stability of the object's composition

If the guide member is fixed to the guide rail using welding or rivets, then the structural stability is improved, but the device complexity increases

Engineering Contradiction:
Improvestructural stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The guide rail and cable support are merged into a single integrated structure. The guide rail itself provides the cable support function through its structural design, eliminating the need for separate guide members and their complex fixing mechanisms, thereby reducing device complexity while maintaining structural stability.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a separate guide member is used to support the cable, then the cable support function is improved, but the manufacturing cost increases due to additional components and fixing processes

Engineering Contradiction:
Improvecable support functionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The cable support function is merged into the guide rail structure itself. The guide rail is designed to provide both guidance and cable support functions through its integrated structure, eliminating the need for separate guide members while maintaining reliable cable support and reducing manufacturing cost.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10927589B2Window regulator
Publication Date: 2021.02.23 JOHNAN SEISAKUSHO CO LTD
  • US10927589B2 patent drawing
  • US10927589B2 patent drawing
  • US10927589B2 patent drawing

AI summary

A window regulator includes a metal guide rail provided along an ascending/descending direction of a window of a vehicle, a carrier plate that slides on the guide rail and moves together with the window, a drum rotationally driven by a motor, a cable that is routed between the drum and the carrier plate via a direction changing member provided at an upper end of the guide rail and pulls the carrier plate, and a cable support that supports the cable between the drum and the direction changing member. The cable support includes a resin slide member allowing the cable to slide thereon and an attached-member receiving portion to which the slide member is attached. The attached-member receiving portion is integrated with the guide rail.