Motorized Turn-Tilt Sash Opening Device with Integrated Guide Track

Solution Overview

Problem

Existing devices for turn-tilt sashes and tilt sashes of windows or doors require large installation space, are costly, and lack a hybrid drive that allows seamless switching between automatic and manual operation, with no provision for a compact and inexpensive design that fits within the window or door frame.

Innovation Solution

A device with a motorized drive and force transmission means, utilizing a kink-resistant chain and connecting rod system that couples and decouples the locking device, allowing motorized tilting and rotation with manual override, and is designed to fit within the rebate space of the window or door, using a chain divided into buckling-resistant and standard sections for compactness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate deflection device with control cam and guide track is used, then the locking device can be operated, but the installation space increases and external mounting is required

Engineering Contradiction:

Improvelocking device operationVSAvoidinstallation space

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The guide track and control cam are merged into a single integrated component rather than being separate elements. This integration eliminates the need for a separate deflection device housing, allowing the mechanism to be mounted within the window or door frame rebate space while maintaining full operational functionality of the locking device.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The opening device is designed to be nested within the existing window or door frame structure, specifically utilizing the rebate space. The integrated guide track and control cam mechanism fits within the frame's internal dimensions, eliminating the need for external mounting and reducing the overall space requirement.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If the housing and deflection device are extended for tilt-and-turn operation, then the stroke and functionality increase, but the size and cost increase

Engineering Contradiction:

Improvetilt-and-turn functionalityVSAvoiddevice size

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The guide track and control cam are merged into a single integrated component rather than being separate elements. This integration eliminates the need for a separate deflection device housing, allowing the mechanism to be mounted within the window or door frame rebate space while maintaining full operational functionality of the locking device.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated guide track and control cam mechanism serves multiple functions: it guides the chain movement, controls the locking device operation, and enables both tilt and turn functionalities. This multi-functionality eliminates the need for separate components for each function, reducing overall device size while maintaining versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Manufacturing precision

If a complex deflection device with separate control groove and guide track is used, then the locking mechanism can be precisely controlled, but the manufacturing cost increases

Engineering Contradiction:

Improvelocking mechanism controlVSAvoidmanufacturing cost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The guide track and control cam are merged into a single integrated component rather than being separate elements. This integration eliminates the need for a separate deflection device housing, allowing the mechanism to be mounted within the window or door frame rebate space while maintaining full operational functionality of the locking device.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated guide track and control cam mechanism serves multiple functions: it guides the chain movement, controls the locking device operation, and enables both tilt and turn functionalities. This multi-functionality eliminates the need for separate components for each function, reducing overall device size while maintaining versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4041975B1Opening device for a turn-tilt sash of a window or door

Publication Date: 2023.09.06 SIEGENIA AUBI KG

Figure 1~2
Figure 3~4
Figure 5~7

AI summary

The invention relates to an opening device (1) for a turn-tilt sash of a window or door (3), comprising a locking device (2) which is provided on the sash (4) and a base part (6) which is fixed to the frame (5) and on which is a power transmission means (8) that is actuated by means of a motor drive device (7) is mounted and comprising a connecting member (9) to the sash (4). The connecting member (9) is a drive rod connecting element (10), wherein the locking device (2) can be brought into a locking position and into an unlocking position by means of the motor drive device (7), the drive rod connecting element (10) is arranged at the free end (11) of the force transmission means (8) and consists of a driver (12) arranged on the force transmission means (8) and of a hook (13).