EP0913648A1 - Expansion compensation device and heating devices windows or the like provided with such a device - Google Patents

Abstract

The expansion compensator is made from a bimetallic strip which applies a sideways force against the glass or vitro-ceramic panels (5) of a heating stove door or window, pushing them towards a stop (11) on the opposite side of the frame (3). Variants of the design can have one or more expansion compensators on opposite sides of the panels.

Description

Objects of the invention

The present invention relates to a device compensating, to correct the effects of differential expansions for windows, French windows, panel doors and other elements, in particularly in the case of heating apparatus.

The invention also relates to windows, French windows and panel doors equipped with this device.

In the description that follows, we will use the term "window" in the broad sense, as including French windows, panel doors and the like comprising a generally glazed part housed in a frame generally pivoting or tilting but may be also fixed.

Technological background

The heaters say open hearth are, as is known, of great appeal to the user, this attraction resulting from the visual effect caused by flames during combustion.

Unfortunately, it is also known that heaters of this type are of a yield very poor and so we sought to create homes or fireplace stoves with a window or the like. Such a window consists of a frame containing one or several transparent panels or possibly diaphanous, usually glass or glass-ceramic or even sometimes opaque if a visual effect is not sought after, these types of panels having a coefficient dilation which, in general, is different from that of frame.

When the panel consists of a single piece, the seal between the latter and the frame is obtained by a more or less flexible joint acting in pressure, tensile or sliding.

Indeed, temperature variations induce differential dilations between the frame and its content whose coefficient of expansion is different from that of the frame. In principle, we must let play these dilations with a certain freedom to avoid excessive mechanical forces that can lead to cracking or breakage.

This is true for both flat panels only for curved, curved or prismatic panels, that they remain in one piece.

When the constituent part transparent or diaphanous consists of several pieces or panels joined, it always appears a gap between them since the expansion of the frame is greater than that of the material constituting the panels. This slot is eminently detrimental to sealing and causes other disadvantages, in particular gaseous fumes, deposits and fouling.

Goals covered by the invention

The invention aims to solve the problems of differential dilation mentioned and in particular, to compensate for this dilation by maintaining the seal, without lead to major technical complications and this all ensuring a long service life in relatively thermal stress conditions important.

Indeed, fireplaces or stoves of the type above mentioned can reach temperatures higher than 300 or 400 ° C, depending on the fuel used and the walking conditions, from a home that may be find before it starts at temperatures below 0 ° C.

In particular, starting from the hypothesis that a fireplace or stove can easily for use normal have a life span greater than 10 years, it the device used should be able to retain its characteristics for the entire life time without the need for replacement, following effects wear.

The invention solves the requirements pre-mentioned.

Characteristic elements of the invention

The invention relates to a device to compensate for differential dilations appearing between the frame and one or more panels mounted in or on this frame serving in particular to achieve a window or the like in a heater, characterized in that it consists of material bimetallic in the form of a bimetallic strip.

The invention also relates to a window intended in particular for glazed parts of an appliance heater, consisting of a frame containing one or several panels of different coefficients of expansion of that of the frame, characterized in that it comprises a expansion compensator made of bimetallic materials acting on the panel or panels on the basis of frame.

Other embodiments of the invention will appear on reading the following description and claims.

The term "framework" should be understood to mean in the description of the invention and the claims, as also including a skeleton of generally constituted window in the case of a heating by a decorative element such as a lace of cast iron imitating an old spark arrester, a chenet etc.

Similarly, the term "window" must also to be broadly defined as defined above.

Bi-metallic materials of bimetallic type are well known and widely used even high temperatures of several hundred degrees. These devices provoke, under the effect of a variation of temperature, a curvature of the blade that is set to profit, especially in thermostats and in breakers.

In some cases as well, this device has proposed to act directly on debit.

In the particular application proposed by the invention, the particular property of the bimetal is set profit so that, when subjected to a increasing temperature resulting in differences in dilation between the panel and its support, the action of the bimetallic causes the necessary compensation to this difference in dilation.

So we have a simple way, effective and not very sensitive to wear to compensate for dilatation differences without undue effort exerted on the panel and / or on the support.

In the case of a frame with several panels, these are kept in a joined position, thus ensuring the seal.

By an appropriate choice of characteristics of expansion and sizing of bimetallic possible to achieve, for the heating appliances effective compensation, in the usual temperature ranges for this type devices.

The invention will be described in more detail in reference to preferred embodiments with reference in the accompanying drawings.

Brief description of the drawings

Figure 1, une vue frontale d'une fenêtre constituée de trois panneaux et d'un compensateur;

Figure 2, une vue frontale d'une fenêtre plus longue, constituée de huit panneaux et de deux compensateurs;

Figure 3, une vue frontale d'une fenêtre plus longue et haute, constituée de huit panneaux et de quatre compensateurs en deux paires;

Figure 4A, une vue en élévation d'une fenêtre comportant une partie vitrée prismatique à lamelles rectangulaires en trois pièces;

Figure 5A, une vue en élévation d'une fenêtre comportant une partie vitrée avant légèrement bombée et deux parties latérales planes;

Figure 6A, une vue en élévation d'une fenêtre comportant une partie vitrée bombée en lamelles rectangulaires en plus de trois pièces montées dans un cadre glissière.

Figures 4B, 5B et 6B, des vues en perspective correspondant respectivement aux figures 4A, 5A et 6A.

Figure 7, une vue frontale comportant une partie vitrée prismatique à lamelles non rectangulaires (tronc de pyramide) en trois pièces.

Figure 8, une vue en perspective d'une fenêtre comportant une partie vitrée prismatique à lamelles non rectangulaires (tronc de pyramide) en plus de trois pièces sur cadre glissière.

Figures 9A et 9B, une vitre "oeil de mouche" dans laquelle les triêdres sommitaux sont tirés vers le squelette de fenêtre au moyen de bilames.

Figures 10A et 10B, une vitre émeraude dans laquelle les pièces sommitales sont tirées vers le squelette interne.

Figure 11, une vue de montage d'un bilame dans un cadre muni de panneaux vitrés.

In the drawings are represented:

Figure 1, a front view of a window consisting of three panels and a compensator;

Figure 2, a front view of a longer window, consisting of eight panels and two compensators;

Figure 3, a front view of a longer and taller window, consisting of eight panels and four compensators in two pairs;

Figure 4A, an elevational view of a window having a prismatic glass portion with three-piece rectangular slats;

Figure 5A, an elevational view of a window having a slightly convex front glazed portion and two planar side portions;

Figure 6A, an elevational view of a window having a curved glass portion in rectangular strips in addition to three pieces mounted in a slide frame.

Figures 4B, 5B and 6B, perspective views respectively corresponding to Figures 4A, 5A and 6A.

Figure 7, a front view comprising a prismatic glazed portion with non-rectangular lamellae (truncated pyramid) in three parts.

Figure 8 is a perspective view of a window comprising a prismatic glass portion with non-rectangular lamellae (pyramid trunk) in addition to three pieces on a slide frame.

9A and 9B, a "fly-eye" pane in which the top trihedrons are pulled towards the window skeleton by means of bimetallic strips.

Figures 10A and 10B, an emerald pane in which the top pieces are drawn towards the inner skeleton.

Figure 11, a mounting view of a bimetallic strip in a frame provided with glazed panels.

In the different figures, benchmarks of identical references are used for parts identical or similar constituents. All the landmarks of reference are not included in the different views for the sake of clarity of the drawings.

Description of preferred embodiments of the invention

A window indicated by the general reference 1 is constituted by one or generally several panels 5, mounted in frame 3 or held on frame 3 when this frame is actually a skeleton of window.

To compensate for thermal expansion between the frame 3 and the panels 5, one or several bimetallic strips 9 resting on frame 3 serve to maintain the individual panels 5 in a joined position.

In the case of Figure 1 provided for a small window, bimetallic 9 pushes laterally the three panels 5 towards a stop 11.

In the case of Figures 2 and 3, the bimetallic strips on one side also act laterally, but opposite direction bimetallic opposite side.

In the embodiment of FIG. 11, the bimetallic 9 mounted on a skeleton of a window forming a "frame" 3, acts on an angular element 13 (by traction) which apply the panels 5 to the support frame.

Although forms have been described illustrative of the invention, it must be understood that other forms of execution of these are possible within the scope of the following claims.

Claims (6)

Device for compensating for Differential expansions appearing between the frame (3) and one or more panels (5) mounted in or on this frame (3) serving in particular for making a window (1) or similar in a heater, characterized in that that it is made of bimetallic material in the form a bimetallic strip (9). Device according to claim 1, characterized in that the bimetallic strip (9) grows laterally panels (5) to a stop (11). Device according to claim 1, characterized in that one or more bimetals on one side act also laterally, but in the opposite direction of one or bimetallic on the opposite side of the frame (3). Device according to claim 1, characterized in that in the embodiment of the 11, one or bimetals (9) mounted on a skeleton of window forming "frame" (3) act on an element angular (13) which pulls the panels (5) on the support frame (3). Window (1) intended in particular for glazed parts of a heating appliance, constituted a frame (3) containing one or more panels (5) of expansion coefficients different from that of the frame (3), characterized in that it comprises a compensator of dilation in bimetallic materials (9) acting on the or the panels by pressing on the frame (3). Window according to claim 5, characterized in that the frame (3) comprising a plurality of panels (5), these being held in a joined position, thus ensuring sealing by the effect of the expansion of the compensator (9).

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