Winding Shaft Box Hook Connection for Window Frames

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Solution Overview

Problem

Existing connection arrangements for winding shaft boxes to window or door frames are complex and require assembly from below or require the frame to be turned, making the process cumbersome and potentially unstable.

Innovation Solution

A connection arrangement featuring an adapter profile with hook strips and a baseboard profile with counter-engagement projections, including a latching mechanism and sealing lips, allows for simplified assembly by hanging the winding shaft box from above and provides a secure locking mechanism to prevent slipping, while also accommodating different window frame types through adaptable clip elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the winding shaft box is connected using traditional metal brackets and adapter profiles requiring assembly from below or frame rotation, then the connection can be achieved, but the assembly process becomes complex and cumbersome

Engineering Contradiction:

ImproveAssembly processVSAvoidConnection arrangement

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent inverts the traditional assembly direction by enabling the winding shaft box to be hung from above onto the window frame instead of requiring assembly from below or rotation of the frame. The baseboard profile incorporates engagement projections that hook onto corresponding counter-engagement projections on the adapter profile, allowing gravity-assisted installation in a single straightforward motion.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The connection arrangement is segmented into distinct functional components: the adapter profile attached to the window frame, the baseboard profile integrated with the winding shaft box, engagement projections for connection, and latching projections for securing. This segmentation allows each component to be optimized independently and simplifies the overall assembly process.

Inventive Principle:

Principle #1Segmentation

2Reliability

If traditional connection arrangements are used without latching mechanisms, then assembly is simpler, but the connection becomes unstable and prone to slipping

Engineering Contradiction:

ImproveConnection stabilityVSAvoidConnection arrangement

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The latching projections are designed to automatically engage with counter-latching projections during the hanging process, performing the locking action preliminarily as part of the assembly sequence. This preliminary latching action occurs immediately when the engagement projections connect, preventing subsequent slipping without requiring additional manual intervention.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The latching mechanism is designed as a self-service system where the latching projections and counter-latching projections automatically engage and lock the connection during assembly. The resilient latching projection flexes to accommodate the engagement and then locks into place, providing self-securing functionality without external assistance.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If the adapter profile uses fixed engagement projections, then manufacturing is simpler, but the connection cannot accommodate different window frame types and tolerances

Engineering Contradiction:

ImproveFrame compatibilityVSAvoidAdapter profile production

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The adapter profile is designed with universal adaptability to accommodate different window frame types through various clip element configurations. The basic adapter profile structure remains consistent, but different clip elements can be attached to adapt to different frame types (wood, metal, plastic, different profiles), making a single adapter design universally applicable across multiple frame varieties.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The connection arrangement accommodates manufacturing tolerances and gap variations through resilient latching projections that can flex and adjust to different engagement positions. The engagement projections are designed with sufficient travel range to accommodate tolerance variations in frame dimensions and clip element positioning, maintaining reliable connection across different production batches.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentEP3216970B1Winding shaft box of a building opening shadowing device and connection arrangement for same

Publication Date: 2018.01.24 ROMA KG

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AI summary

The invention relates to a connection arrangement for connecting a winding shaft box to a window frame, comprising: - a baseboard profile (8) connectable to the winding shaft box and - an adapter profile (7) attachable to the upper horizontal strut (1) of the frame, wherein the adapter profile (7) has a base plate (20) resting on the horizontal strut (1) and a plurality of hook strips (23, 24) extending parallel to each other towards the baseboard profile (8) at intervals, which point upwards in the installed state, and which can be engaged with a corresponding plurality of counter-hook strips (21, 22) extending downwards from the baseboard profile (8) to the adapter profile (7) in order to connect the winding shaft box at its baseboard profile (8) to the adapter profile (7) attached to the frame.