JPH0346636B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention consists of two flat metal molded bars and one heat insulating strip that connects the metal molded bars,
Each metal forming bar has, on the side facing the insulation strip, a continuous strip that engages within a recess in the insulation strip, and between the successive strips of each metal forming bar. is provided with an intermediate flange that engages in the groove of the insulation strip, and in this case, the intermediate flange extends obliquely to the longitudinal side of the composite sash, and the inner diameter of the groove is equal to the thickness of the intermediate flange. The present invention relates to a heat-insulating composite sash, especially for window frames or door frames, which is formed larger than the size of the sash, and a method for manufacturing the heat-insulating composite sash.

Known heat-insulating composite sash of the above type (see Patent Application Publication No. 2911832 of the Federal Republic of Germany)
In this case, the insulation strips are held in the lower region by suitable force guides on the respective metal profile bar. However, if manufacturing errors or manufacturing inaccuracies occur, especially in the groove provided in the insulation strip which receives a suitable intermediate flange of the metal profile bar, it is possible that the metal profile bar will be damaged in the lower region, i.e. in the forced guide element. It became clear that the insulation strips would not be able to adequately retain the heat in some areas. This has an adverse effect on the composite sash with regard to the mutual parallelism and dimensional stability of the metal forming bars.

An object of the present invention is to provide a thermally insulating composite sash of the type mentioned at the beginning, with accurate positional stabilization of metal forming bars and insulation strips even if there are manufacturing errors or manufacturing inaccuracies in the components that make up the composite sash. The aim is to ensure that gender is guaranteed.

According to the composite sash of the present invention, the above-mentioned problem can be solved by the continuous strip of metal molded bars provided on the side facing the insulation strip for friction-connected contact with the insulation strip. It is bendable and cold deformable about an axis extending parallel to the longitudinal direction of the metal forming bar, and the insulation strip is in frictional contact with the metal forming bar at all corners. It was then resolved.

In an advantageous embodiment of the invention, the insulation strip has edge strips in the corner areas, and the insulation strip contacts the inner wall of the metal profile bar with a frictional connection on the lateral limiting surfaces. ing.

Therefore, in the four corner ranges of the heat insulating strip, the metal molded bar and the heat insulating strip are reliably tightened and fixed by compensating for manufacturing errors and manufacturing inaccuracies of the constituent members constituting the composite sash.

The vertical clamping of the metal profile bar and the insulation strip is likewise effected by a non-deformable intermediate flange that engages in a groove in the heat insulation strip and by a deformable continuous strip of the metal profile bar. . Only the continuous strips provided inside the metal forming bar are deformed, so that the visible surfaces of the metal forming bar remain parallel to each other. Furthermore, displacement in the height direction is also prevented.

In order to maintain a high stability of the insulation strip and increase its thermal insulation effect, two or four hollow chambers are preferably provided inside the insulation strip, which serve as air chambers.

Furthermore, the method according to the invention for producing a thermally insulating composite sash using a metal molded bar and associated insulation strips is characterized in that the insulation strip is first placed in an angular strip or in a receiving groove of the metal molded bar. guiding and pushing along the lateral intermediate flanges of the metal forming bar and then applying a pressing force to the strips as well as the angular strips from the outside using rollers, compression slides or similar devices; This ensures that, on the one hand, the insulation strip is pushed diagonally downwards into the insulation strip and on the other hand, located on the opposite side of this strip, so that the insulation strip contacts the metal profile bar in a frictional manner at all contact points. The strip is pushed into the insulation strip to a substantially horizontal position, or the edge strip is crimped onto the metal forming bar.

The edge strip and the metal profile bar are thus permanently connected, maintaining a precise overall installation depth. The components forming the composite sash are fixed to one another both vertically and horizontally, in which case large manufacturing tolerances are easily compensated for by the gaps that are present from the beginning between the components.

The invention will now be explained with reference to the illustrated embodiment.

Composite sash is made of flat metal molded bars 1, 2, 1
a, 2a, and a shape-stable heat-insulating strip 3 made of plastic. The insulation strip 3 according to the embodiment of FIGS. 1 and 2 has four cavities 4 designed as air chambers, the web between the cavities 4 being
It is configured as a diagonal diagonal member 5.

In the embodiment according to FIG. 4, the insulation strip 3 has two cavities 4. In the embodiment according to FIG.

On the outside of the heat insulating strip 3 that connects the metal forming bars 1, 2, 1a, 2a in the upper region,
Disposed are successive strips 6, 7 which lie horizontally in the starting position and lie opposite one another, each of which is provided with one continuous projection 8 on its underside. This projection cooperates with a suitable recess 9 in the insulation strip 3. Further, grooves 10 and 11 extending obliquely upward are provided in the insulation strip 3 on the side of the insulation strip facing the metal molded bars 1 and 2, and the intermediate flange 1 of the metal molded bar is inserted into these grooves.
2 and 13 are engaged. The inner diameter of the oblique grooves 10, 11 is significantly larger than the thickness of the intermediate flanges 12, 13. each intermediate flange 1
2, 13 are metal forming bars 1, 2, 1a, 2 to which they belong.
At the transition point to point a, it has a continuous groove 14 in which the tip of the edge strip 15 of the insulation strip engages. Furthermore, a projection 16 is provided in the center of the underside of the insulation strip, which projection serves as a stop when a composite sash is used as a window sash for a suitable window frame.

In the embodiment of FIGS. 1 and 2, each metal forming bar 1, 2 has a lower hook-like strip 1 located opposite the upper strip 6, 7.
7 and 18 are provided. each strip 1
7 and 18 are in the unassembled state shown in FIG.
It engages in the appropriate groove 19 of the insulation strip. Condition 1
The webs 20 of strips 7 and 18 extend obliquely downward at an angle of approximately 10 degrees with respect to a plane 21 perpendicular to the inner wall of the metal forming bar, whereas the webs 20 of strips 1
The angle between the inner surface of the hook 22 of 7, 18 and the plane 23 parallel to the inner wall of the metal forming bar is approximately 20
degree. Therefore, the side walls of the groove 19 and the parallel plane 2
3 is approximately 20 degrees. In this case, from the inner surface of the hook 22 of the strips 17, 18, the strip 17,
18 to the inner surface of the web 20, as well as the transition from the side wall of the groove 19 located closest to the associated metal forming bar to the underside of the insulation strip 3, is of rounded design. Similarly, the transition from the bottom of the groove to the side wall of the groove is also rounded.
Furthermore, the transition portions of the strips 17, 18 from the top surface of the hook 22 to the back surface of the hook are also rounded. Furthermore, the transition areas of the strips 17, 18 from the outer surface of the web 20 to the associated metal profile bar are also rounded. The thickness of the hooks 22 of the strips 17, 18 corresponds to the thickness of the webs 20 of the strips 17, 18. The inner surface of the web 20 of the strips 17, 18 is provided with a continuous groove 24 as a target bending point at the connection point with the associated metal profile bar. The ends of the hooks 22 of the strips 17, 18, which engage the side walls of the groove 19, are tapered.

When manufacturing composite sashes according to FIG. 1 and FIG. 2, the sashes shown in FIGS.
On the one hand, the upper strips 6, 7 are pushed downwards from the horizontal position illustrated in FIG. The hook-shaped strips 17 and 18 are pushed up from a position where they extend diagonally downward to a substantially horizontal position. This allows the hooks 22 of the strips 17, 18 to
The insulation strip is fixedly pressed onto the corresponding inner wall 26 of the metal profile bar.

When the strips 6, 7 are transformed from the position shown in FIG. 1 to the position shown in FIG.
The hook-shaped strips 17, 18 are bent around the axis B. In the end position illustrated in FIG.
The lateral limiting surfaces 15a, 2 of the edge strips 15, 25 of
5a is fastened to the inner wall 26 of the metal forming bar in a frictional manner.

By bending the strips 6 and 7, the insulation strip 3 is immovably pressed against the intermediate flanges 12 and 13, so that in addition to a frictional connection, a form connection is also made, and the individual components of the composite sash remain solid and unchangeable. becomes connected to.

In the embodiment according to FIG. 3, a hook-shaped strip 17,
18 is replaced by a strip 30 which is bendable and cold deformable about axis B;
This strip 30 forms the inner wall of the receiving groove 28 on the inside. The edge strip 25 of the insulation strip 3 is inserted into the receiving groove 28 . In FIG. 3, the starting position of the strip 30 is shown in solid lines, whereas the starting position of the strip 30 is
The end position of is indicated by a dash-dotted line.

In the region of the free end of the strip 30, a projection 27 is provided on the side facing the edge strip 25.

The groove bottom 29 of the receiving groove 28 extends perpendicularly to the inner wall 26 of the metal forming bar 2. Even after deforming the strip 30, a gap still exists between the edge strip 25 and the groove bottom 29.

The force which presses the edge strip 25 and the edge strip 15 onto the inner wall 26 of the metal forming bar 2 is indicated by arrow F.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a cross-sectional view of the composite sash in an unassembled state, and FIG. 2 is a cross-sectional view of the composite sash in a completely assembled state. A cross-sectional view of the composite satsushi of
FIG. 3 is a cross-sectional view of a portion of a modified embodiment different from the embodiments shown in FIGS. 1 and 2, and FIG. 4 is a cross-sectional view of a window frame and a door frame manufactured by the composite sash according to the present invention. It is a diagram. 1, 1a, 2, 2a...metal forming bar, 3...
Insulating strip material, 4...Hollow chamber, 5...Diagonal diagonal material, 6,
7, 17, 18, 30... Strip, 8, 27... Protrusion, 9... Recess, 10, 11, 19... Groove, 1
2, 13... intermediate flange, 12a, 13a...
Edge edge, 14, 24... Groove, 15, 25...
Edge strip, 15a, 25a... Restriction surface, 16...
Projection, 20... web, 21, 23... plane,
22... Hook, 26... Inner wall, 28... Receiving groove, 29... Groove bottom, A, B... Axis line.

Claims (1)

[Claims] 1. Two flat metal molded bars 1, 2; 1a, 2
b and one insulation strip 3 that connects the metal molded bar.
an insulating composite sash comprising, on the side of the metal molded bar facing the insulating strip, a continuous strip 6, 7, which engages in a recess in the insulating strip; 18, and between successive strips of each metal forming bar there is an intermediate flange 12,1 which engages within the groove 10,11 of the insulation strip.
3 is provided, in which case the intermediate flange extends obliquely to the longitudinal side of the composite sash,
and the inner diameter of the groove is larger than the thickness of the intermediate flange, and the continuous strips 6, 7 on the side facing the free end of the intermediate flange are pressed against the corresponding metal by external pressure. The insulation strip is bendable and deformable about an axis A extending parallel to the longitudinal direction of the forming bar so as to press the insulation strip against the metal forming bar in the area between the continuous strip and the intermediate flange. and the insulation strip has an edge strip 25 on the side opposite to the direction in which the free end of the intermediate flange faces, each edge strip 25 being bendable. Angled strips 17, 18; 3 which can be cold deformed at
0, the angular strip forms the inner wall of the receiving groove and the associated metal profile bar 1, 2;
Axis line B extending parallel to the longitudinal direction of a and 2b
A gap is provided between the bottom 29 of the receiving groove 28 and the edge strip 25, and the edge strip 25 connects to the inner wall 26 of the metal forming bar and the angled strip 17. , 18; 30. 2. The lateral limiting surfaces 15a, 25a of the edge strips 15, 25 in the corner regions of the insulation strip 3 are in frictional contact with the inner wall of the metal profile bar. Composite satsushi described in section. 3 Respective metal forming bars 1, 2; 1a, 2b
The angular strips of the intermediate flanges 12, 13
On the opposite side of the free edge edges 12a, 13a,
It is designed as hook-shaped strips 17, 18 which engage in corresponding grooves 19 of the insulation strip 3 and are pressed onto the insulation strip 3, the webs 20 of these strips forming the insulation strip 3 in the starting position. 3. A composite sash according to claim 1 or 2, which on its side facing 3 forms an obtuse angle with respect to the inner wall 26 of the metal forming bar. 4 The angle between the web 20 of the strips 17, 18 and the plane 21 perpendicular to the inner wall of the metal forming bar is approximately
The composite sash according to claim 3, which has an angle of 10 degrees. 5. A composite sash according to claim 4, wherein the angle between the inner surface of the hooks 22 of the strips 17, 18 and a plane 23 parallel to the inner wall of the metal forming bar is about 20 degrees. 6. Any one of claims 3 to 5, wherein the angle between the side wall of the groove 19 and the plane 23 parallel to the inner wall of the metal forming bar is approximately 20 degrees.
Composite satsushi described in section. 7. The transition from the inner surface of the hook 22 of the strips 17, 18 to the inner surface of the web 20 of the strips 17, 18 is rounded.
The composite sash described in any one of paragraphs 1 to 6. 8. The composite sash according to claim 7, wherein the transition portions of the strips 17, 18 from the front surface of the hook 22 to the back surface of the strips 17, 18 are rounded. 9. Claims 1 to 8, in which the transition part of the strip 17, 18 from the outer surface of the web 20 to the associated metal profile bar 1, 2; 1a, 2b is rounded. The composite satsushi according to any one of the above. 10 The thickness of the hook 22 of the strips 17, 18 corresponds to the thickness of the web 20 of the strips 17, 18,
A composite sash according to claim 7. 11. The inner surface of the web 20 of the strip 17, 18 is provided with a continuous groove 24 as a target bending point at the point of connection with the associated metal profile bar 1, 2; 1a, 2b. Composite sash as described in item 3. 12. The composite sash according to claim 1, wherein two or four hollow chambers 4 are provided inside the heat insulating strip 3. 13. The composite sash according to claim 12, wherein the web between the hollow chambers 4 of the insulation strip 3 is configured as a diagonal diagonal member 5 of the insulation strip 3. 14. Composite sash according to claim 1, wherein in the free end region of the angular strip 30, on the side facing the edge strip 25, a projection 27 is provided. 15 An angular strip 30 forms the inner wall of the receiving groove 28 for the edge strip 25, the bottom 29 of which extends perpendicularly to the inner wall of the metal forming bar, and the edge strip 25 and a bottom portion 29 of the receiving groove.
Composite satsushi according to item 4. 16 Two flat metal molded bars 1, 2; 1a,
2b and one heat insulating strip 3 that connects metal molded bars. It has successive strips 6, 7; 17, 18 which engage in the recesses of the insulation strips, and between the successive strips of each metal forming bar there are grooves 10, 11 of the insulation strips. Engaging intermediate flanges 12 and 13 are provided, in which case the intermediate flange extends obliquely to the longitudinal side of the composite sash, and the inner diameter of the groove is formed to be larger than the thickness of the intermediate flange. , and a continuous strip 6 on the side towards which the free end of the intermediate flange faces,
7 is pressed from the outside to the metal forming bar in the range between the continuous strip and the intermediate flange, centering on the axis A extending parallel to the longitudinal direction of the associated metal forming bar. The insulation strip is bendable and deformable so as to be crimped.
Opposite the direction in which the free end of the intermediate flange is oriented, it has an edge strip 25, each edge strip 25 being a bendable, cold-deformable angular strip. The pieces 17, 18; 30 engage in the receiving groove 28 of the metal forming bar with the angular strip forming the inner wall of the receiving groove and the associated metal forming bar 1, 2; 1a, 2b
The bottom 29 of the receiving groove 28 can be bent around an axis B extending parallel to the longitudinal direction of the receiving groove 28.
A gap is provided between the edge strip 25 and the edge strip 25, and the edge strip 25 is clamped and fixed between the inner wall 26 of the metal profile bar and the angular strips 17, 18; 30. In this case, the insulation strips 3 are guided in the angular strips 17, 18 of the metal profile bars 1, 2; , 13 and then applying a pressing force from the outside with rollers, compression slides or similar devices on the strips 6, 7 as well as the angular strips 17, 18; 30, thereby: On the one hand, the strips 6, 7 are pressed diagonally downwards into the insulation strip 3 and on the other hand, the strips 17, 18 are pushed in place so that the insulation strip 3 contacts the metal profile bar in a frictional manner at all contact points. A process for producing a heat-insulating composite sash, characterized in that it is pushed into the heat-insulating strip 3 to a horizontal position or the edge strip 25 is crimped onto a metal molded bar.