WO2002086262A1

WO2002086262A1 - Tilting mechanism with antifriction elements for aluminium doors and windows

Info

Publication number: WO2002086262A1
Application number: PCT/GR2002/000025
Authority: WO
Inventors: Fotis Fragopoulos
Original assignee: Fotis Fragopoulos
Priority date: 2001-04-23
Filing date: 2002-04-19
Publication date: 2002-10-31
Also published as: GR1003952B; EP1387920A1

Abstract

An aluminium door and window inclination mechanism is provided with a central quick insertion-removal system consisting of a main metal part (1), bearing holes (7) on both ends and a lock housing (3) at the center and antifriction means (5) fixed in especially designed seats (6) on the two spaced apart opposite sides of a sliding latch (4). Said main central part (1) allows easy and quick access to the inclination mechanism for maintainance and repairing reasons, whereas said anti-friction means (5) eliminates the creation of noise during use of door or window, as well as decreases the coefficient of friction resulting in the elimination of wear of the inclination mechanism.

Description

TILTING MECHANISM WITH ANTIFRICTION ELEMENTS FOR ALUMINIUM DOORS AND WINDOWS

The present invention relates to a mechanism for installation in door and window frames , said mechanism facilitating and securing door and window opening in an inclined position having also quick insertion-removal and antifriction systems. The conventional door and window inclination mechanisms, as it is Known to the skilled , are fixed within a slideway provided in the door or window frame where parts an pieces constituting said ^"inclination mechanism move slidewise and their construction and function is based on the same princi- pie , this being particularly applicable to those inclination mechanisms fixed in door and window frames of standard slide- way dimensions .

Consequently , up today the technology related to construction of inclination mechanisms for aluminium doors and windows is restricted , as mentioned above , in the production of such mechanisms which during their operation move slidewise within a slideway and this results to serious disadvantages such as friction creation , due to existance of high coefficient of friction , because of the metal-to-metal contact, noise creation due to compulsory allowance for facilitation of movement of the parts and pieces constituting the inclination mechanism within the door or window slideway with . this extending to opening-closing difficulty during use of door or window, with- the^mos seτcioύs;:disadvantatje:i being the fixing of iclination mechanism within the door or window frame slideway which is very tiring and requires lots of time to be spent .

Various efforts have been made to eliminate disadvantages mentioned above by addition of either metal or pla- stic spring plates on only one of the vertical sides- of sliding latch. Such an addition is described , for exapml-e in German Patent No. DE 34 41 389 Al which is concerned with fixing of one spring plate at the top and one spring plate at the botton of only one vertical side of the sliding la- tch . This arrangement gives solution to only one of the aforementioned disadvantages i.e. the one of noise creation during use and in no way it eliminates the rest of them , hich in the case of friction becomes more intense , for the reason that the metal-to-metal contact of the opposite side of the sliding latch

slideway surface not only continues to exist but on the contrary friction is increased due to the force applied by the two spring plates fixed o the other side of sliding latch . Conclusively , all sliding latches bearingftnetal or plastic springs either on one vertical side or on both vertical sides in a diagonal way ,possess the disadvantages mentioned above a d in addition , generally speaking there is no inclination mechanism bearing a central quick insertion-removal sy- stem providing quick and easy access to the inclination mechanism itself .

Therefore , the objectives of the invention are to provide an aluminium door or window inclination mechanism eliminating all disadvantages of prior art by responding perfectly to its requirements of use and also less expensive- o install and maintain , with this being achieved by a central quick^' insertion-removal system which allows easy access to the inclination mechanism for fixing , installing and repairing reasons., thus reducing working time and consequently costs of maintai- nance .

The various features and advantages, of the invention will be more fully apparent to those skilled in the art from the following description refering to one particular and in no way limiting embodiment , with .referenced to the accompanying drawings in which ^':-

FIG. 1 is a general view of the inclination mechanism of the invention .

FIG 2 is a front view of the central quick insertion-removal system of the invention , and FIG 2 is a front view of the latch of inclination mechanism bearing antifriction means. Specifically , the aluminium door and window mechanism of the invention is provided with an additional central part (1) , bearing holes (7) on both its ends and a lock housing (3) at the center . Said central part (1) is placed at the point of door or window frame where the lock is housed and is fastened with the other parts constituting the inclination mechanism with the help of screws (2) through the holes (7) and (8) . Unscrewing the screws (2) said part (1) may be.^'.removed , releasing thus' the inclination:-.mechanism in no time for any kind of intervention , easily and without any particular effort .

The sliding latch (4) bears two corresponding seats (6) on both its vertical sides , here plastic spring plates (5). are fixed . Said plastic spring plates (5) serve as anti- friction means eliminating both the prior art friction and noise disadvantages, for the reasons that in this case there is total elimination of compulsory allowances for the smooth movement of the latch within the slideway with.¹ said latch sliding without making the least of noise during use on one hand and the dramatic reduction of the coefficient of friction due to the plastic spring plates (5) coming in contact with the metal slideway having thus plastic-to-metal contact and not metal-to-metal contact on the other .

At this point should be mentioned that the central part (l),as well as the sliding latch are made of either za ak or aluminium , the screws (2) are made of either stainless steel or copper , whereas plastic antifriction means are made of a?pi>astic material known in commerce with the name of NYLON 6 , without this meaning that said components could not be made of any other suitable material available.

Claims

1.- Aluminium door and window inclination mechanism, characterized in that it is provided with a central quick insertion-removal system, as well as antifriction means.

2.- Aluminium door and window inclination mechanism, as in claim 1 , characterised in that said quick insertion- removal system consists of a main part (1) , earing holes (7) on both its ends and a- lock housing (3) at the center.

3.- Aluminium door and window inclination mechanism, as in claims 1 and 2 , characterised in that said central quick insertion-removal system is positioned at the point of door or window frame provided for housing of the lock and is fastened with the rest of inclination mechanism by means of screws (2) through the holes (7) and (8) .

4.- Aluminium door and window inclination mechanism, as in claims 1,2- and 3 , characterised in that the access to the mechanism is provided by simply unscrewing the- - screws (2) and removing said central ^' part (1). in no time , so that the need of removing slidewise the whole inclination mechanism from the slideway for repairing or maintainance is totally eliminated . :^■•-. ~

5. Aluminium door and window inclination mechanism, as in claims 1,2,3 . and 4 , characterised in that said antifriction means are two plastic spring plates (5) positioned on both space apart opposite sides of the sliding latch (4) and fixed in the right position by means of especially designed seats (6).

6. Aluminium door and window inclination mechanism, as in claims 1,2,3,4...and 5 , characterised in that the function of said antifriction means (5) is to eliminate all compulsory distance allowances between the sides of the sliding of^" the sliding latch (4) and the corresponding sides of slideway , eliminating thus any kind of noise created during use of door or window .

7.- Aluminium door and window inclination mechanism , as in claims 1,2,3,4,5 and 6 , characterised in that the function of said antifriction means (5) is to provide a metal-to-plastic contact between the two spaced apart opposite sides of the sliding latch (4) with the corresponding internal sides of slideway , decreasing thus the coefficient of friction dramatically , with this having as a result the elimination of wearing of the inclination mechanism ,resulting to the perfect function of the door or window throughout the time .

8.- Aluminium door and window inclination mechanism , as in claims 1,2,3,4,5,6 and 7 , characterised in that said central main part (1) and sliding latch (4) are may be made of either za ak or aluminium , said screws (2) may be made of either stainless steel or copper ,whereas said plastic antifriction means (5) may be made of a pla- stic material known in commerce, under the name NYLON 6 , without this meaning that said components could not be made by any other suitable material available .