Segmented Roller Blind Cabinet for Flush Front Alignment

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Solution Overview

Problem

Existing cabinet designs with roller blinds do not provide a visually appealing uniform closure when the blind is closed, as segments may be inclined or not in the same plane, affecting the overall aesthetic appeal.

Innovation Solution

The cabinet incorporates a mechanism where all segments of the roller blind on the closed side lie in the same plane, with projections ensuring the segments are vertically aligned when closed and remain parallel to the body's side, and film hinges connect the segments for smooth movement, allowing the blind to be fully open without inclination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the roller blind segments are allowed to move freely between open and closed positions, then the ease of operation is improved, but the visual uniformity and aesthetic appeal deteriorates as segments may be inclined or not in the same plane

Engineering Contradiction:
Improveease of operationVSAvoidvisual uniformity
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The guide structure changes the spatial parameters of segment positioning through its curved and straight sections. The curved guide section allows segments to transition from an inclined open position to a vertical closed position, while the straight guide section maintains vertical alignment. This parameter change in segment orientation and position resolves the contradiction by ensuring visual uniformity when closed while preserving operational freedom.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The guide structure acts as an intermediary between the freely moving blind segments and the cabinet body. It mediates the movement of segments, constraining them to follow a specific trajectory that ensures vertical alignment when closed while still allowing easy opening and closing operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Shape

If the segments are constrained to remain in one plane when closed, then the visual uniformity is improved, but the device complexity increases due to the need for guides and alignment mechanisms

Engineering Contradiction:
Improvevisual uniformityVSAvoiddevice complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The guide structure is segmented into distinct functional sections: a curved guide section for transitioning segments from inclined to vertical position, and a straight guide section for maintaining vertical alignment. This segmentation allows each part to perform its specific function efficiently, achieving visual uniformity without excessive complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The curved guide section uses a curved path to naturally guide segments from their inclined open position to the vertical closed position. This curvature eliminates the need for complex mechanical alignment mechanisms, as the geometry itself ensures proper segment orientation, thereby improving visual uniformity while minimizing added complexity.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If the roller blind is designed with segments that can be moved relative to one another, then the adaptability is improved, but the manufacturing precision requirements worsen to ensure proper alignment

Engineering Contradiction:
ImproveadaptabilityVSAvoidmanufacturing precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The guide structure enables the blind segments to self-align during operation. As segments move through the curved and straight guide sections, they automatically achieve vertical alignment when closed without requiring pre-adjustment or high-precision manufacturing of each segment. The guide geometry itself provides the alignment function, reducing manufacturing precision requirements while maintaining adaptability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2784262B1Cabinet with roller blind
Publication Date: 2018.04.25 BULTHAUP GMBH & CO KG
  • EP2784262B1 patent drawingFigure 1
  • EP2784262B1 patent drawingFigure 2
  • EP2784262B1 patent drawingFigure 3~4

AI summary

The cabinet (10) has a body and a roller blind, which is displaced between an open position and a closed position. The roller blind closes the front side of the body in its closed position. A unit is provided, which acts on one of the segments (20,40,50) of the roller blind such that all the segments of the roller blind, which are located on the side of the body closed by the roller blind, lie in a plane with their front side with completely closed roller blind.