Segmented Hinge Bearing Pin for Window Door Adaptability

Solution Overview

Problem

Existing hinge joints for windows and doors are heavy and expensive due to the long bearing pin required for universal use, which limits their applicability and increases material costs.

Innovation Solution

A hinge joint design featuring a shorter bearing pin with stop means for precise positioning, allowing axial displacement between two positions, and an optional additional bearing pin for flexibility in right or left-hand mounting, reducing material usage and weight while maintaining functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a long bearing pin is used to allow the hinge to be used for both right and left mounting positions, then the adaptability is improved, but the weight and material cost increase

Engineering Contradiction:

ImproveadaptabilityVSAvoidweight

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The bearing pin is divided into two separate components: a first bearing pin and a second bearing pin. Each pin is optimized for a specific mounting position (right or left), allowing the hinge to be adapted to different configurations without requiring a single overly long pin that serves both positions simultaneously. This segmentation reduces the length and weight of each individual pin while maintaining overall adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hinge joint is designed with dynamic configurability through the use of stop means that can be positioned at different locations along the bearing opening. By adjusting the stop means to different positions, the same hinge joint can accommodate both right-hand and left-hand mounting configurations, eliminating the need for a fixed long bearing pin and reducing weight.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If a long bearing pin is used for universal mounting positions, then the adaptability is improved, but the material cost increases

Engineering Contradiction:

ImproveadaptabilityVSAvoidmaterial cost

Core Design Contradiction:

Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The bearing pin is divided into two separate components: a first bearing pin and a second bearing pin. Each pin is optimized for a specific mounting position (right or left), allowing the hinge to be adapted to different configurations without requiring a single overly long pin that serves both positions simultaneously. This segmentation reduces the length and weight of each individual pin while maintaining overall adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The length parameter of the bearing pin is optimized by using two shorter pins instead of one long pin. The first bearing pin has a first length and the second bearing pin has a second length, both shorter than what would be required for a single universal pin. This parameter change reduces material consumption and cost while maintaining the ability to accommodate both mounting positions.

Inventive Principle:

Principle #35Parameter changes

3Weight of moving object

If the bearing pin is shortened to reduce weight and cost, then the weight and material cost are reduced, but the ability to accommodate both mounting positions may be compromised

Engineering Contradiction:

ImproveweightVSAvoidadaptability

Core Design Contradiction:

Weight of moving objectVSAdaptability or versatility

Solution Approach 1:

The bearing pin is divided into two separate components: a first bearing pin and a second bearing pin. Each pin is optimized for a specific mounting position (right or left), allowing the hinge to be adapted to different configurations without requiring a single overly long pin that serves both positions simultaneously. This segmentation reduces the length and weight of each individual pin while maintaining overall adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hinge joint is designed with universal applicability through the combination of two bearing pins with stop means that can be positioned at different locations. The same hinge joint structure can accommodate both right-hand and left-hand mounting configurations by adjusting the stop means positions, making the system multi-functional despite using shorter individual pins.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3130733B1Hinge joint, in particular for windows, doors or the like

Publication Date: 2018.12.26 WILH SCHLECHTENDAHL & SOEHNE GMBH & CO KG

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AI summary

The invention relates to a scissor bearing (1) for a hinge joint (2), in particular for windows, doors, or the like, with a bearing pin (4), wherein the bearing pin (4) is axially displaceable in a bearing opening (5) of the scissor bearing (1) between a first position projecting from the scissor bearing (1) and a second position. According to the invention, the length (1) of the bearing pin (4) is less than the length (L) of the bearing opening (5), so that the bearing pin (4) is completely received in the scissor bearing (1) in the second position.