Actuating Device for Sliding Window Sash

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Solution Overview

Problem

Existing sliding window and door systems face challenges in maximizing the glass surface area while maintaining functionality and resistance, and they often hinder the complete packaging and transport of sashes, especially in multi-sash configurations due to protruding handles and frame encumbrances.

Innovation Solution

An actuating device for sliding windows or doors that reduces the frame dimensions, allowing for a larger glazed surface by incorporating a carriage with sliding mechanisms and a rotating actuating member, enabling the sash to be raised and lowered, thus eliminating the need for a protruding handle and allowing for complete packaging and transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the frame dimensions are reduced to increase the glass surface area, then the glazed surface is increased, but the housing for the handle and command sliding devices must be provided which reduces the glazed surface again

Engineering Contradiction:

Improveglass surface areaVSAvoidframe structure complexity

Core Design Contradiction:

Area of moving objectVSDevice complexity

Solution Approach 1:

The actuating device is extracted from the traditional frame housing and integrated directly into the sash structure. The rotating actuating member is mounted on the sash itself, eliminating the need for a handle housing in the frame, thereby maximizing the glass surface area while maintaining all necessary functions for unlocking and sliding operation.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The actuating mechanism is repositioned from the frame dimension to the sash dimension. By mounting the rotating actuating member on the sash and using connecting rods to transmit motion to the sliding mechanism, the system achieves the same functional result without occupying frame space, thus allowing the frame to be minimized for maximum glass area.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the handle projects from the internal profile of the window or door, then the unblocking and sliding functions are achieved, but the total packaging of sashes is prevented

Engineering Contradiction:

Improveunblocking and sliding functionVSAvoidsash packaging volume

Core Design Contradiction:

Ease of operationVSVolume of moving object

Solution Approach 1:

The unblocking and sliding functions are merged into a single integrated actuating mechanism. The rotating actuating member on the sash simultaneously controls both the unlocking of the sash from the frame and the activation of the sliding mechanism, eliminating the need for a separate protruding handle and enabling compact packaging.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Instead of having the handle protrude from the frame to operate the sash, the actuating member is inverted and mounted on the sash itself. This reversal of the traditional arrangement allows the sash to be operated without external protrusions, enabling complete packaging and transport of pre-assembled sashes.

Inventive Principle:

Principle #13The other way round (Inversion)

3Area of moving object

If the frame has smaller dimensions, then the glazed surface is increased, but the resistance and structural functionality may be compromised

Engineering Contradiction:

Improveglazed surface areaVSAvoidframe resistance

Core Design Contradiction:

Area of moving objectVSStrength

Solution Approach 1:

The traditional mechanical sliding mechanism housed in the frame is replaced with a carriage-based system that operates independently of the frame structure. The carriage with rolling means moves along the sliding direction on the rail, separating the sliding function from the frame, allowing the frame to be minimized for maximum glass area while maintaining structural integrity through the sash's own actuating mechanism.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution increases the glass surface area, maintains the functionality of standard windows or doors, enables complete packaging and transport of sashes, and improves thermal performance by reducing the frame's dimensions and eliminating internal projections.

Implementation Method 1

The carriage comprises at least a slide provided with rolling means for sliding along the sliding direction on the rail

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

The connecting means are configured for generating the raising and/or the lowering of the sash following the sliding motion of the slide

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS10597921B2Actuating device for the sash of a sliding window or door

Publication Date: 2020.03.24 ALBAN GIACOMO SPA

AI summary

A sliding window or door includes sash, a frame and an actuator, which includes a carriage. The carriage includes a slide mounted on the sash so as to enable a secondary sliding motion between a stationed position and a sliding position and vice versa. The carriage also a connecting portion fixed to the sash and associated with the slide so that the secondary sliding motion of the slide towards the sliding position determines a raising of the sash and the secondary sliding motion of the slide towards the stationed position determines a lowering of the sash. A rotating actuator is mounted on a rear head surface of the sash, and has a rotation axis parallel to said sliding direction. A rear command shaft is arranged along the rear head surface of the sash and operatively interposed between the actuator and the carriage for generating the secondary sliding motion.