Metal door frame




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Example No. B8—GB1281622
METAL DOOR FRAME

Patent number: GB1281622

Publication date: 1972-07-12

Inventor:

Applicant:

Classification:

- international:

- european: E06B1/16, E06B3/16, E06B7/23B1A

Application number: GBD1281622 19700812

Priority number(s): CH19690012574 19690816

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Also published as:

US3729869 (A1)

NL7012032 (A)

LU61519 (A)

FR2058327 (A1)

DE2039643 (A1)

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Abstract of GB1281622

1281622 Metal door frames and doors STAHLWERKE SUDWESTFALEN AG 12 Aug 1970 [16 Aug 1969] 38812/70 Heading E1J A metal door jamb or wing frame member, e.g. of rolled steel sheet is of rectangular box cross-section having on one side, e.g. the wall side, a groove 5 of rectangular cross section and on the opposite side an external rib 6 bordering one side of an undercut groove 7 the other side of which is bordered by an outstanding rail or bar 9. Sealing strip of tubular form and made from synthetic mate- rial has a protuberance of suitable shape for fitting into the undercut groove 7. The ad- jacent frame member 3 of a wing may have a somewhat similar construction, with the con- fronting faces mirror images one of the other. As shown in Fig. 1 the wing frame member 3 is made up of two profiles and the jamb may be constructed in the same manner as the frame member 3 (Fig. 2). (Other modifications are shown in Figs. 3 and 4).





Description of GB1281622


PATENT SPECIFICATION

( 11) 1281622 DRAWINGS ATTACHED Application No 38812/70 ( 22) Filed 12 Aug 1970 Convention Application No 12574 ( 32) Filed 16 Aug 1969 in Switzerland (CH)

Complete Specification published 12 July 1972

International Classification E 06 B 1/16 3/16 ( 52) Index at acceptance E 1 J 211 216 223 224 231 303 ( 72) Inventor HANS WENIG ( 54) METAL DOOR MAIN AND WING FRAMES ( 71) We, STAHLWERKE S}DWESTFALEN AKTIENGESELLSCHAFT, of 1-Huettental-Geisweid, in the District of Siegen, Federal Republic of Germany, a German Company, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: -

Metal door frames are being used in increasing measure in modern architecture, but their high price resulting from precise methods of execution still causes their application to be rather limited.

The object of the present invention is to simplify and at the same time render less costly the manufacture of metal door main and wing frame members by using novel profiles, or sections, constructed and specially suitable for this purpose, which can be used as either door jambs or wing frame members used with each other in a door assembly.

The invention is based on the consideration that, by the choice of specially constructed profiles capable of being used as alternatives to one another, numerous different kinds of metal doors can be manufactured using a relatively small number of profiles, thus resulting also in a simplification of storekeeping.

Consequently, a metal door or wing frame member according to the invention is constructed in such a way that it consists of a boxlike post, substantially rectangular in crosssection, having on one side a groove of re tangular cross-section, on the opposite side a protruding rib bordered on one side by a groove the width of which increases with its depth, and having an outstanding bar on the side of the groove remote from the rib.

It is useful for a boxlike post consisting of a combined first and second profile to have a first closed L-shaped profile closed by an outstanding rail on the inside of a first leg and running parallel to the inside of the second leg, and an open sided second profile assembled onto the first profile According to a further feature of the invention one rim of the second profile reinforced by folding through 180 is supported in the space between the outstanding tail of the first leg and the inner side of the second leg by bearing against the first profile, and this second profile has a flank running parallel to the inside of the first leg, then a flank bent through 905 to align with the end of the first leg, then a bent flank adjacent to the end of the second leg, then a flank lying adjacent to the outer side of the second leg, a broad external rib formed by repeated bending, and finally a groove formed by repeated bending which is bordered by the end of the profile folded through 180 and formed so that the groove increases with its depth.

In some cases it is advantageous for the boxlike post consisting of a first and a second profile to have a first closed profile of substantially rectangular shape which, on the side opposite the side provided with the groove, has a shallow recess of greater breadth than the groove and closed within the area of said recess by a lap joint, and a second closed profile, inserted into the shallow recess and closed by an outstanding rail having immediately adjacent to it the groove the breadth of which increases with its depth, and which has adjaceat thereto a broad, protruding shallow rib.

In a preferred embodiment the metal door wing frame consists of a first profile of substantially T or hamerlike shape closed by an outstanding rail protruding from a flank of the cross bar of the profile and runming parallel to the adjacent flank of the stem of the profile, an an open second profile assembled onto the first profile, the rim of said second profile, reinforced by folding through 180 , is sunpported in the space between the outstanding rail and the adjacent flank of the first profile by bearing against the latter, further having a flank which runs parallel to the flank of the first profile having the outstanding rail, then a flank bent through 90 ' to align with the end of the cross bar of the first profile, then a bent flank lying adjacent the end of the stem of the first profile, then a flank bent through 90 ' , and finally, a flank running parallel to the latter but offset therefrom, which runs adja( 21) ( 31) ( 33) ( 45) ( 51) 1,281,622 cent to the outer side of the stem of the firs profile and the end of which is supported b. a protruding part of the first profile. Accord ing to a further feature of this embodimen there is provided a third closed profile whicl is inserted into a recess situated between thi protruding part of the first profile and thi protruding part of the second profile whicl third profile is closed by an outstanding rai imme:diately adjacent to which there is a groov the breadth of which increases with its depth and which has adjoining it a broad protruding shallow rib.

Geneially speaking it is advantageous if ir a door assembly the jamb as well as the wing frame consist of a boxlike profile according to the invention, if the boxlike profiles forming the jamb and the wing frame have the same outline, and if the outer walls and the inner walls of the jamb and the wing frame are aligned with each other.

For the purpose of excluding draughts, according to a further feature of the invention, a resilient strip is inserted into each of the parallel but laterally oppositely transposed grooves provided in the two sides of the jamb and the wing frame facing each other, and the arrangement is such that, when the door is closed, the part of the strip protruding from the groove comes into resilient contact with a protuberance on the opposite profile It has been found useful to provide the resilient strips in the form of tubes of synthetic material and having a protruding hump preferably of dovetail shape inserted into the matching groove.

The invention will now be particularly described with reference to the accompanying drawings illustrating practical examples, and onitting any details not necessary for an undertaniding of the invention Corresponding parts have been given the same reference numerals In the drawings Fig 1 is a horizontal section of the profile of a door jamb, and adjacent to it a wing frame composed of two profiles; Fig 2 is a horizontal section of another pracical example of a jamb composed of two profiles, and of a wing frame composed of like profiles; Fig 3 is a horizontal section of another practical example of a jamb and wing frame member, each composed of three profiles; Fig 4 is a horizontal section of a variant of the wing frame member shown in Fig 2 and composed of three profiles.

The arrangement illustrated in Fig 1 shows a jamb 1 and, connected thereto by links not shown, a wing frame member 3 pivoted about an axis 2 The jamb consists of a boxlike profile 4 having a substantially rectangular crosssection, the side further from the wing frame having a groove 5 of rectangular cross-section.

On the side of the jamb facing the wing frame the jamb has a protruding shallow rib 6 bardered on one side by a groove 7 the width t of which increases with its depth On the side yof the groove 7 facing away from the rib 6 -the boxlike profile is closed by an outstanding trail 9 forming a protruding bar The wing i frame 3 is formed by a frame member cone sisting of a first closed profile 10 and a second e open profile 11 The profile 10 is substantially h L-shaped and is closed by an outstanding rail I 12 protruding from the inside of a leg 13.

e The second profile has a rim 14 reinforced by h folding through 180-, and disposed in the g space between the outstanding rail 12 of the first leg 13 and the inner side of a second leg of the profile 10, the rim 14 being held in position by bearing against the first profile g 10 Further, the second prolile 11 has a flank 16 running parallel to the inside of the first e leg 13, a flank 17 bent through 90 and aligned with the end of the first leg 13, a bent flank 19 adjacent to the end of the second leg 15, a broad external rib 20 formed by repeated bending, and finally a groove 21 formed by repeated bending bordered by the end of the profile folded through 180 thus forming a bar 22. A resilient strip 23 is inserted into each of the two parallel but oppositely transposed grooves 7 and 21 The strip consists of a tube of synthetic material having a protruding hump with a dove-tail shaped cross-section, which is inserted into the matching undercut groove These synthetic material tubes 23, which serve as airtight seals, are arranged in mirror image one to the other, and, when the door is closed, form a chamber which prevents any draughts The pivotal axis 2 is positioned in the space between the two inner sides of the jamb 1 and the wing frame 3 facing each other, in the immediate vicinity of one of the two bars 9 and 22 respectively supporting the synthetic material tubes from the outside.

The outstanding rail 12 and the rim 14 of the second profile, held in position by bearing against rail 12 and reinforced by folding over, result, in combination, in an effective rigidity of the composite boxlike post which is advantageous for wide doors Line 24 indicates where the composite post may be screwed together; the outstanding rail 12 covers the screws.

The outer profiles of the jamb 31 illustrated l in Fig 2 and of the wing frame 32 are similar to thosc of jamb 1 and wing frame 3 in Figure 1; howevcr, the protruding broad shallow rib 6 illustrated in Fig 1 is formed in the iamb 31 as well as in the wing frame 32 by an 1 inserted part Jamb 31 and wing frame 32 are arranged in the same way but in mirror image one to the other Both consist of a first closed profile 33, each having on the sides facing away from each other a groove 5 and on the 1 sides facing each other a shallow recess which is considerably broader than the said groove In the area of this recess each profile is closed by a lap joint 34 A profile 35, which is closed by an outstanding rail 36, is inserted 1:

1,281,622 into each of the two broad shallow recesses.

Immediately adjacent to each outstanding rail 36 there is a groove the breadth of which increases with its depth and into which resilient strip 23 is inserted This strip is made in the same way, and its functions are the same as those already described in connection with Fig 1 Each profile 35 has a broad protruding shallow rib 37 immediately adjacent to the groove filled with strip 23.

Again, in the embodiment according to Fig 3, the outer outline of the profiles used therein corresponds substantially with that of the embodiment according to Fig 1 Analogous boxlike posts are used for jamb 41 and for wing frame member 42, and these consist of assembled profiles The profile 43 which is of first importance in the construction of the jamb has a T or hammer-like shape and is closed by an outstanding rail 44 Fitted onto this profile 43 is an open profile 45 whose rim 46 is reinforced by folding over and which supports itself in the space between the outstanding rail 44 and the adjacent flank 47 of the stem of the first profile 43 by bearing against the latter The second profile 45 has, furthermore, a flank 48 running parallel to the flank of the first profile 41 from which the outstanding rail 44 protrudes This flank 48 is continued by flank 49 bent at 90 and aligned with one of the flanks of the head of the first profile 41, followed by a bent flank lying adjacent to the end of the stem of the first profile In continuation of the next flank 51 angled by 900 there follows a flank 52 running parallel but offset with regard to flank 51 and which lies adjacent to an outer side of the stem of the first profile The end of flank 51 is folded through 180 and is supported by the cross bar of the first profile.

A third closed profile 54 is inserted into each of the shallow recesses formed by parts of the first and second profiles The arrangement of profile 54 and its functions are identical to those of profile 35 of Fig 2, and the same applies to the shape and function of the inserted resilient strips 23.

A further embodiment of the invention is shown in Fig 4 The jamb 31 is arranged in the same way as the jamb 31 of Fig 2, whereas the arrangement of the wing frame member 61 corresponds with that of the wing frame member 42 of Fig 3 Wing frame members 42 and 61 differ only in their relationships between breadth and depth In the variants of the wing frame members illustrated in Figs 3 and 4, the assembly is made easier in that, when assembling the larger closed and the smaller open profiles, the outstanding rail 14 forms a good lead-in for the rim 46 which is reinforced by folding over.

The sides of the metal profiles facing each other inside the outstanding rails are roughened, preferably by interlocking notches, in order to safeguard these parts against a relative lengthwise dislodgement.

The invention has been described above in its application to doors that open to one side (so-called "push-doors") However, it is possible to modify the metal door frame in such a way that it will be suitable for doors opening to either side (so-called "swing doors") For this purpose it will suffice to replace both the inserts between the jamb and the wing frame member inserted into recesses and facing each other and consisting substantially of profile 35, by a different insert which, on the sides facing each other, are curved or part cylindrical These two inserts have each a groove facing each other, into which a resilient strip is inserted In both arrangements, therefore, the resilient sealing strips inserted into the corresponding grooves ensure the exclusion of draughts.

The profiles according to the present invention may be manufactured by cold rolling and the process may be continuous Any suitable metals may be used, preferably non-corroding, such as non-rusting high quality steel.


Claims of GB1281622

WHAT WE CLAIM IS:

1. A metal door main or wing frame comprising a boxlike post substantially rectangular in cross-section having on one side a groove of rectangular cross-section, having on the opposite side a protruding rib bordered on one side by a groove the width of which increases with its depth, and having an outstanding bar arranged on the side of the groove remote from the rib.

2. A metal door main or wing frame according to Claim 1, wherein the boxlike post, consisting of a first and a second profile, has a first closed L-shaped profile closed by an outstanding rail on the inside of a first leg and running parallel to the inside of the second leg, and an open sided second profile assembled onto the first profile, whose one rim, reinforced by folding through 180 , is supported in the space between the outstanding rail of the first leg and the inner side of the second leg by bearing against the first profile, and a flank running parallel to the inside of the first leg, followed by a flank which is bent through 900 to align with the end of the first leg, followed by a bent flank adjacent to the end of the second leg, then by a flank lying adjacent to the outer side of the second leg followed by a broad external rib formed by repeated bending, and finally a groove formed by repeated bending boardered by the end of the profile folded through 1800, and formed so that the groove increases with its depth.

3. A metal door main or wing frame according to claim 1, wherein the boxlike post, consisting of an assembled first and second pro file, has a first closed profile of substantially rectangular shape which has, on the side opposite to the side having the groove, a 1,2581,622 shallow recess of greater breadth than the groove and closed within the area of that recess by a lap joint, and a second closed profile inserted into the shallow recess and closed by an outstanding rail having immediately adjacent to that rail a groove the breadth of which increases with its depth, and has following thereafter a broad protruding shallow rib.

4. A metal door main or wing frame according to Claim 1, comprising a first profile of substantially T or harnmlerlike shape closed by an outstanding rail protruding from a flank of the cress bar of the profile and running parallel to the adjacent flank of the stemn of the profile, and an open second profile which has been assembled onto the first profile, the zin of said second profile, reinforced by folding through 150, is supported in the space between the outstanding rail and the adjacent flank of the first profile by bearing against the later, furdher a flank runnling parallel to the flank of the first profile, having the standing rail then a flank bent through 90 to align with thle end of the cross bar of the first profile, then a bent flank adjacent the end of the stem of the first profile, then a flank bent through 90 = and finally, running parallel to the latter but offset therefrom, a flank adjoining the outer side of the stem of the first profile, the end of which is supported by bearing against a protruding part of the first profile, and comprising a third closed profile inserted into a recess between the protruding part of the first profile and the protruding part of the second profile, which third profile is closed by an outstanding rail and has imimediately adjacent to the rail a groove the breadth of which increases with its depth, and which has adjoining it a broad protruding shallow rib.

5. A metal dcor assembly consisting of a jamb and a wing frame, wherein the jamb as well as the wing frame consist of box-like profiles according to Claim 1.

6. A metal door assembly according to Claim 5 wherein the box-like profiles forming the jamb and the wing have identical outlines and wherein the outer walls and inner walls of the jamb and the wing frame are aligned with each other.

7. A metal door assembly according to Claim wherein a resilient strip is inserted into each of the parallel but laterally transposed grooves in the two sides of the jamb and the wing frame respectively which face one another, arranged in such a manner that when the door is closed that part of the strip which protrudes from the groove bears resiliently against a protuberance of the opposite profile.
8. A metal door assembly according to Claim 7, wherein the resilient strip are formed by tubes of a synthetic material having a protruding bulge of preferably dove-tail crosssection inserted into the corresponding groove.
9. A metal door assembly according to any one of Clkims 5 to 8, consistisg of non-corroding mrlaterial.

10. A metal door assembly according to Clain, 9, wsherein only the jamb and the wing frame are made of non-rusting high-quality steel.

11. A meclhod of manufacturing box-shaped posts for metal door frames and jambs according to Claim 1 wherein the profiles used therefor are made of sheet material which has been cold-rolled in a continuous working process.

12. A metal door assembly having a jamb and wing frame substantially as hereinbefore 80 particularly described and as shown in Figure 1 of the accompanying drawings.

13. A metal door assembly having a jamb and a wing fiame substantially as hereinbefore particularly described and as shown in Figure 2 of the accompanying drawings.

14. A metal door assembly having a jamb and a wing frame substantially as hereinbefore particularly described and as shown in Figure 3 of the accompanying drawings.


15. A metal door assembly having a jamb and a wing frame substantially as hereinbefore described and as shown in Figure 4 of the accompanying drawings.


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