FI97908B - The spacer element - Google Patents

Description

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_ FI000097908B

(B) (11) NOTICE OF PUBLICATION

Ä UTLAGGNINGSSKRIFT 97908 ^^ '(51) Kv.Ik.6 - Int.cl.6 E 068 3/663 gy 0 jyj | _Patent application - Patentansöknlng 953348 (22) Filing date - Ansöknlngsdag 07.07.95 (24) Starting date - Löpdag 07.07. 95 (41) Made public - Bllvlt offentllg 29.11.96

Patent and Registration Office .... , . .

of_. . . . (44) Date of dispatch and of publication. -

Patent- OCh registerstyrelsen Ansökan utlagd och utl.skrlften publlcerad 29.11.96 (71) Applicant - Sökande 1. Purso Oy, Nokia, Alumllnltle 1, 37200 Sluro, (FI) (72) Inventor - Uppflnnare 1. Vanaa », Tom, VI1111ännlemi 8 C 12, 33300 Tampere, (FI) (74) Agent - Ombudsman: Tampereen Patenttitoimisto Oy (54) Title of the invention - Uppflnningens benämning VS1 i ke-el eeientti Hei1aniäggselement [56) References - Publications EP A 130438 (E 068 3 / 66) 57) Summary - Saamandrag

The invention relates to a spacer element (4) which supports the glass plates (2a, 2b) of a glass element from the inside and determines their mutual | a distance from which on the outer side of the spacer element (4) there is at least one strip (4a, 4b) directed towards the outer edge of the glass element (2), which forms an attachment point for the retaining piece (3). The attachment point is located in the center line of the spacer element (4) asymmetrically with respect to the outer glass plate (2a) and the iius- | there is a larger space between the inner surface of the glass sheet and the strip B 1 between the inner glass sheet (2b) and the Iius-__ 'chicken (4b).

14

Uppfinningen avser ett mellanläggselement (4), som 8 7 stöder glasskivor (2a, 2b) av ett glaselement pärere | I 13

this is the case and the best of the above. rr \ rte ΓP '' 9 J

varvid pä mellanläggselementets (4) yttersida finns 2b Mf 2b minst en mot glaselementets yttre kant riktad lamell (4a, I [Π | \ | f Κπΐ 12>

4b), som utgör et fästställe för ett hällarstycke (3). ... 'S

Fäststället befinner sig osymmetriskt i förhällande till

mellanläggselementets (4) mittlinje päsä sätt, att mellan I I

the glass (2a) and the lamellae (4a) are formed and then the glass mass is applied to the glass mass in the glass (2b) Γ A \ \ Λ V5 \ A Γ 1 och lamella (4b). 2a v2 5 10 ^ 9 3 3a V 2a ·, 97908 Spacer element

The invention relates to a spacer element which supports the glass plates s of the glass element from the inside and determines their mutual distance, the outer side of the spacer element having at least one strip facing the outer edge of the glass element, which forms an attachment point for the retaining piece.

Today, the facades of buildings have become so-called. "structural 10 glazing", ie glass facades in which the glass accounts for a large proportion of the surface area and in which the joints between the glasses are as narrow as possible. Such glass facades do not use ordinary frames around the glass sheets, but the glass sheets are so-called. double-glazed thermal glazing, with a spacer element between the outer and inner plates, which together with the outer edges 15 of the plates forms a recess in the edge of the double-glazed glass plate in which a retaining piece attached to the frame profile can be placed. The above-mentioned spacer profiles generally use two adjacent strips facing the outer edge of the glass sheet, whereby there is a sealing mass between the strips and the plates, by means of which the plates are attached to the spacer-20 element, and the said retaining piece can adhere between these strips. Such a structure is known e.g. German application 37 40 059.

A critical point in the strength of this type of facade structure is often the strength of the structure connecting the panels 25 together. For example, German application 37 40 059 discloses a solution in which a layer of sealing compound is also interposed between the outer plate and the detent body, or there is still a special detent profile on the edge of this plate to ensure the retention of the structurally critical outer glass pane. The disadvantage of both solutions is the complexity of the structure, because, for example, the effects of thermal expansion must be taken into account. In the latter solution, the detent profile is also a factor hindering the appearance if a "frameless" appearance is sought.

The object of the invention is to provide a spacer element which provides a simpler structure than the above-mentioned solution, but in which the problems of sticking to the outer glass can be avoided with a simple solution. To achieve this purpose, the spacer element according to the invention is mainly characterized in that the attachment point is located asymmetrically with respect to the centerline of the spacer element so that there is more space between the outer glass sheet and the strip for sealing mass between the inner surface of the glass sheet and the strip. . Thus, the amount of sealing mass s on the side of the outer glass sheet can be increased without having to increase the total amount of mass used or the distance between the glass sheets. On the side of the inner glass pane, the mass can be reduced because its adhesion is also ensured mechanically.

For other preferred embodiments of the invention, reference is made to the dependent claims and the following description.

The invention will now be described in more detail with reference to the accompanying drawings, in which Figure 1 shows a façade structure according to the invention at a joint of two adjacent glass elements in a horizontal section at the restraints, and Figure 2 shows the same structure in horizontal section Figure 4 shows a façade structure according to a second embodiment of the invention at the joint of two adjacent glass elements in a horizontal section at the detent pieces.

Figure 1 shows the joint point of two adjacent glass elements in the jul-30 side structure in a horizontal section. The glass elements 2 are fastened to the frame profile 1 by means of detent pieces 3 which are fixed vertically at certain distances to the frame profile 1. The detent pieces 3 are between the outer edges of the glass elements 2 and have a protruding part 3a which prevents the glass element from moving outwards. The glass elements consist of two glass plates, an outer plate 2a and an inner plate 2b, which are kept apart in a manner known per se **. spacer element 4. The spacer element is located inside the outer edges of the plates 2a and 2b, leaving a recess 3 97908 in the outer edge of the glass element into which the sealing compound connecting the plates 2a and 2b can be applied and placing the above-mentioned protruding part 3a of the retaining piece 3. In order to hold the glass elements 2 in place, the spacer element 4 has strips 4a, 4b projecting from the side facing the outer edge of the case element, between which the part 3a s rests.

The retaining pieces 3 are in turn fastened to the body profile 1 with screws in a screw recess 8 in a part 7 projecting from the body profile into the space between the outer edges of the glass elements. The retaining piece 3 has a part 3c facing this part ίο and located in the mouth of the screw recess. A V-shaped insulating piece 14 is placed around this part, which abuts against the edges of the mouth part of the above-mentioned screw recess 8 when screwing the retaining piece 3 to the frame profile 1. This insulating piece 14 reduces cold bridges between the frame profile and the glazing structure the thermal conductivity is considerably lower than the aluminum material of the frame profile and the retaining pieces.

The retaining piece 3 further has an outwardly opening recess in which a continuous sealing strip 9 sealing between the outer edges of the outer plates 2a is placed, on the outside of which a sealing mass layer 10 is applied between the outer plates 2a. In addition, Figure 1 shows the part 7 projecting between the glass elements. the grooves 11 in which the sealing strips 12 are placed are located in the raised pieces 13 which are fastened to the frame profile 1. The inner surfaces of the inner plates 2b come against these sealing strips 12 when the glass plates are fastened.

Figure 1 also shows how the retaining pieces 3 are directed towards one of the two glass elements 2, e.g. so that they are directed alternately on both sides.

Figure 2 shows the same structure in section in the absence of the detent pieces 3. They are replaced by a continuous plastic fastening profile 15 which is located in the continuous recesses in the screw recess 8 by means of hooks 35 at the ends of its parallel branches. The profile 15 further has a recess open to the outside, into which the above-mentioned sealing strip 9 can be locked by means of a protrusion therein. In addition, it can be seen from Fig. 2 how the sealing mass layers 5 are integrally located on the glass sheet side sides of the strips 4a, 4b of the spacer 4 97908, fixing the plates 2a and 2b to the spacer element 4.

When mounting the glass elements 2 on the frame profiles 1, the protruding part 3a of the holding piece 3 is placed between the protruding strips 4a, 4b of the spacer element. The thickness of the protruding part 3a of the retaining piece 3 is preferably dimensioned so that when the protruding part 3a is pushed between the protruding strips 4a, 4b of the spacer elements, the protruding part 3a is pressed against the protruding strips 4a, 4b. The protruding strips 4a and 4b thus form jaws attached to the protruding portion 3a. At this stage, the retaining pieces 3 also have an insulating piece 14 attached, which is locked by notches at the ends of the branches of the V in the notches at the base of the protruding part 3c. The glass elements 2 are placed against the sealing strips 12 and the retaining pieces 3 with screw holes are screwed to the frame profile 1. The fastening profile 15 shown in Fig. 2 is placed on the part between the retaining pieces and the joint between the glass elements is covered with a sealing strip 9 and a sealing compound 10.

Figure 3 shows on a larger scale 20 spacer elements according to the invention. The spacer element is similar to elements generally known in profile and function, with the difference that the pair of strips 4a, 4b is located asymmetrically with respect to the center line of the element. On the side of the outer glass plate 2a, a larger space can thus be formed for the layer of sealing compound 5. The space can be at least 1.2 times wider, i.e. the layer 5 of the sealing compound 5 can be at least 1.2 times thicker compared to the corresponding space and layer thickness on the side of the inner glass sheet 2b.

The very secure adhesion of the outer glass sheet is achieved by a spacer element in which the width of the space on the outer glass sheet side is at least 3o 1.5 times, whereby the fastening of the inner glass sheet is not yet impaired by commonly used spacer element dimensions. For example, a dimensioning can be used such that the width of the space on the side of the outer glass sheet 2a is at least 4.5 mm and the width of the space on the side of the inner glass sheet 2b is at least 2.5 mm.

The invention can also be used in connection with other types of retaining pieces 3, for example those in which, instead of one projecting part 3a, there are two laterally projecting pins 3a, 3b (Fig. 4), the spacer profile 4 being formed so as to have one projecting strip 4a s 97908 asymmetrical with respect to the center line of the spacer element, wherein the distance between the protruding strip 4a and the outer glass plate 2a is greater than the distance between the protruding strip 4a and the inner glass plate 2b. The dimensioning may be the same as described above in connection with the two-strip spacer element, with the difference that the widths are calculated from the surfaces of the same strip 4a. When installing the glass elements 2 on the frame profiles 1, cavities 6 are first formed on both sides of the strip 4a in the sealing compound layer 5. The cavities can be made with a suitable tool or their formation can be considered in advance by placing pieces around the outer edge ίο of the strip 4a. In these suitably spaced collars, detent pieces 3 are placed, which are attached to the continuous strip at the cavities due to the fact that the detent piece also has a second protruding part 3b on the inner glass plate 2b, the protruding parts being dimensioned with respect to the thickness of the strip. press against the strip on both sides. The parts 3a and 3b thus form jaws attached to the strip 4a. In other respects, the detent body may be similar to that described above, i.e. it has an inwardly directed, triangularly projecting part 3c with a triangular cross-section 20, whereby a horizontally V-shaped insulating body 14 can be placed between the protruding part 3c and the frame profile mounting groove 8 .

The spacer element according to the invention can be made of any suitable material, for example aluminum by dropping.

: The terms glass element and glass sheet have been used above to mean, in addition to glass: of course, other materials that provide: a glass wall-like appearance.

30: Any known mass which:. allows the spacer element and the glass plate to be attached to each other.

Claims (4)

6 97908 A spacer element (4) supporting the glass plates (2a, 2b) of the glass element from the inside and determining their mutual distance, wherein the outer side of the spacer element (4) has at least one strip (4a, 4b) directed towards the outer edge of the glass element, forming an attachment point for the retaining piece (3), characterized in that the attachment point is asymmetrical with respect to the center line of the spacer element (4) so that a larger space is left between the outer glass plate (2a) and the strip (4a). for the sealing mass between the strip than between the inner glass plate (2b) and the strip (4b). Spacer element (4) according to Claim 1, characterized in that the space on the outer plate (2a) side is at least 1.2 times, preferably at least 1.5 times wider than the space on the inner plate (2b) side. Spacer element (4) according to Claim 1 or 2, characterized in that the spacer element (4) comprises two strips (4a, 4b) between which a space is formed for the retaining piece (3). 20 Spacer element (4) according to one of Claims 1 to 3, characterized in that the dimension of the space on the side of the outer plate (2a) in the direction perpendicular to the plane of the glass sheets (2) is at least 4.5 mm and the space on the side of the inner plate (2b) is at least 2.5 mm. 25 7 97908