US3808758A

US3808758A - Frame for covering a wall break-through intended to receive a door or the like

Info

Publication number: US3808758A
Application number: US00245515A
Authority: US
Inventors: A Burgers
Original assignee: Individual
Current assignee: Individual
Priority date: 1972-04-19
Filing date: 1972-04-19
Publication date: 1974-05-07
Anticipated expiration: 1991-05-07

Abstract

A frame for covering a wall break-through intended to receive a door or the like, which includes lining means and two facing members arranged substantially at a right angle to and at the two end faces of said lining means, and in which the two facing members are provided with dowel-shaped wall connecting members extending perpendicularly with regard to the plane of said facing members and connectable to those inner sides of the facing members which are not visible from the outside of the frame. The wall connecting members are adopted to be plugged into corresponding fitting wall recesses, at least one of the two facing members and the lining means having those surfaces thereof which face and contact each other provided with plug means including dowel-shaped connecting members and corresponding recesses for receiving said last mentioned members.

Description

United States Patent 1191 Burgers 1451 May 7,1974

[ FRAME FOR COVERING A WALL BREAK-THROUGH INTENDED TO RECEIVE A DOOR OR THE LIKE [76] Inventor: August Burgers, am Bildchen 37,

5141 Gerderath, Germany [22] Filed: Apr. 19, 1972 [21] Appl. No.: 245,515

[52] US. Cl 52/212, 52/585, 52/753 D, 52/753 E [51] Int. Cl E06b l/08 [58] Field of Search 52/211, 514, 204, 585, 52/208, 212, 656; 287/2092 E, 20.92 D; 49/380, 504

[56] References Cited UNITED STATES PATENTS 2,728,956 1/1956 Jackson 49/380 3,331,623 7/1967 Baresel-Bofinger 287/2092 E 3,572,781 3/1971 Merrilees et a1 52/585 X 2,71 1,564 6/1955 Jackson 49/380 2,753,602 7/1956 Ringle 52/212 X 3,338,008 8/1967 Sklar 52/211 3,599,373 8/1971 Coykendall... 49/380 3,501,866 3/1970 Johnson 49/380 FOREIGN PATENTS 0R APPLICATIONS 756,856 12/1933 France 49/504 10/1970 Germany ,.52/21l 10/1970 Germany ..52/211 [57] ABSTRACT A frame for covering a wall break-through intended to receive a door or the like, which includes lining means and two facing members arranged-substantially at a right angle to and at the two end faces of said lining means, and in which the two facing members are provided with dowel-shaped wall connecting members extending perpendicularly with regard to the plane of said facing members and connectable to those inner sides of the facing members which are not visible from the outside of the frame. The wall connecting members are adopted to be plugged into corresponding fitting wall recesses, at least one of the two facing members and the lining means having those surfaces thereof which face and contact each other provided with plug means including dowel-shaped connecting members and corresponding recesses for receiving said last mentioned members.

4 Claims, 2 Drawing Figures murmur 184 11808758 SHEET 1 BF 2 PATENTEBIAY nan I 3808 758 SHEET 2 BF 2 FRAME FOR COVERING A WALL BREAK-THROUGH INTENDED TO RECEIVE A DOOR OR THE LIKE The present invention relates to a frame or sash for covering or facing a wall breakthrough effected for a door or the like, which frame or sash comprises a lining and two covers or sashes arranged rectangularly on the two edges of the lining.

In most instances, such frames or sashes of U-shaped cross section are employed in connection with a nailedon door while the covering of the frame or sash on the side of the door forms a folded cover and the oppositely located cover or facing on the ornamental side of the frame or sash forms the ornamental covering or facing. It is the general tendency to connect such frames or sashes to the masonry by means of non-visible connecmeans which prior to the mounting of the wooden frame or sash were mounted in the wall breakthrough or blind lining members nailed onto the wall or inserted into the same. Both types of connections are, however, expensive and require a long assembly time which cannot be estimated precisely in advance for construction estimates. The blind lining members have to be mounted precisely and have to be aligned so that the free distance between them corresponds to a certain specified measurement and that the frame or sash with its lining can be fitted into the blind lining members and will have a vertical position and can be connected thereto. Furthermore, the holding means have to be -mounted at definite portions of the blind lining elewere mitered and connected together. In view of the high cost of production of a mitered connection, more recently the two facing parts are no longer mitered but are butt jointed. With frames or sashes of the above mentioned type which are now prefabricated and either in the form of a packet or individual elements are transported by the manufacturer to the building lot where they are assembled, it is cumbersome and timeconsuming and expensive to connect the individual members of the facing in the heretofore customary manner by gluing them together. Visible connections such as screw connections or nails are totally-unsuitable with frames of natural wood or finished varnished individual parts. The employment of screw clamps in order to precisely and firmly press the facings together during the hardening of the glue and to obtain a gaptight connection will with mitered facings encounter considerable difficulties. Parts which have been glued together by butt jointing the same make the job somewhat easier, but the butt joint connection is, especially with natural wood frames or sashes of finished varnished individual parts, not suitable for optical reasons.

It is, therefore, an object of the invention to provide a frame or sash which at the building site can from prefabricated and easily transportable individual parts be assembled in a minimum of time and at low cost.

This object and other objects and advantages of the invention will appear more clearly from the following specification, in connection with the accompanying drawings, in which:

FIG. 1 represents a cross section through a portion of a wooden frame or sash, which cross section may be that of one of the two vertical side parts or of the horizontal upper part of the frame or sash.

FIG. 2 shows a view and partially a section of a cor ner of the sash or frame with the cover or facing.

The face or frame according to the present invention is characterized primarily in that the two facings are provided with dowel-shaped wall connecting members which are adapted to be connected to the non-visible inner side of the facings, said wall connecting members being adapted to be inserted into corresponding wall recesses, and is furthermore characterized in that at least one of the two facings and the lining have those non-visible connecting surfaces which face each other provided with plug connections comprising dowelshaped connecting elements and corresponding recesses. With the frame or sash according to the invention,

not the lining receives the connection with the masonry, but the facing. Preferably, the wall connecting members are formed by cylindrical dowels so that ordinary bores may be provided as fitting recesses on the wall sides whereby the mounting of the sash or frame will be extremely simple. By means of a templet which practically looks like a facing, and which at those areas to which the connecting dowels are to be fastened on the inner sides of the facing, is provided with bores extending therethrough and is first placed upon one wall side in aligned position, it is possible first to bore dowel holes by an ordinary drilling machine into said wall side. By means of the same templet, after placing it on the other wall side, in the same manner dowel bores are bored into the other wall side. Connecting dowels are then placed into the dowel bores and in this way the facing is connected to the wall. This connecting methodv is equally well advantageous for frames or sashes of wood, joiner plates or the like, with which connecting members prior or after insertion into the wall recesses are placed into fitting recesses on the inner sides of the lining and may be glued in, and also for frames or sashes of synthetic material or metal. With the frame or sash according to the invention, the lining is, by means of the dowel-shaped connecting elements held fast by the facings connected to the wall. The connecting elements and the fitting recesses in the connecting surfaces between lining and facing may, especially with frames or sashes of wood, likewise have a simple round shape. These plug connections can in the plant producing the frame precisely .be prefabricated and'then have to be merely assembled at the building site. In this connection it is particularly advantageous and practical when also the connecting members and the fitting recesses are arranged perpendicular to the plane of the facings so as to be plugged into each other.

Referring now to the drawings in detail, the frame or sash comprises a lining l, a cover or facing 2 and an ornamental cover 3. The two

covers

2 and 3 have the inner side thereof which is facing a wall 4 and is not visible from the outside provided with bores 5 into which have been inserted connecting dowels 6 which extend perpendicular to the plane of the facings and wall sides. These connecting dowels 6 are adapted to be inserted into dowel holes 7 on the wall sides, said holes having been bored by means of a templet placed upon the wall sides and aligned on precisely prefixed areas of the wall. Dependingon the thickness of the plaster or cover or the depth of the bores in the wall, connecting dowels of different length can be inserted into the dowel holes of the wall in such a way that they firmly rest in the wall and protrude therefrom with the desired and necessary length. The new covers or facings have those connecting surfaces 8 thereof which are not visible from the outside and extend in a plane parallel manner to the wall sides provided with bores 9 while the lining is provided with bores 10. The connecting dowels 11 are adapted to be inserted into the bores 9 and and are likewise perpendicular to the covers or facing which means that they extend parallelly with regard to the connecting dowels 6. When assembling this wooden frame or sash, first the cover 2 is connected to the lining 1 by means of the connecting dowels l1 and is glued to the connecting surfaces 8. Thereupon the lining together with the cover 2 is moved into the wall breakthrough perpendicularly with regard to the wall and if the connecting dowels 6 have first been connected to the cover 2, the cover 2 is connected to the wall 4 by inserting the connecting dowels 6 into the holes 7 in the wall. Subsequently, in an analogous manner, the ornamental facing 3 is connected to the wall 4 while simultaneously the connecting dowels 11, provided that they have first been connected to the omamental cover are inserted into the bore 10 of the lining whereby the lining is connected to the ornamental facing. In addition thereto, these connecting dowels or the connecting surfaces 8 between the lining and the ornamental cover may be partially glued to their respective interengaging surfaces. Lining and ornamental cover overlap each other to an extent which is greaterthan the occurring tolerances in the thickness of the wall so that the width of the lining does not have to be adapted geously, the L-shaped seal consists of a synthetic rubber on a chloroprene basis. This brings about the advantage that the seal retains a high elasticity whereby a constant satisfactory low noise closing of the door and tight engagement of the door over its entire surface and around the seal will be assured. Furthermore, the seal will always remain in its position so as to be able to adapt itself by elastic deformation to the working of the wood.

According to FIG. 2, in one corner of the frame a vertical side portion 21 and a horizontal upper portion 22 of the cover abut each other. The ends of the

portions

21 and 22 which engage each other are mitered. The horizontal cover portion 22 is provided from its rear side which is not visible from the outside, with a round recess 23 into which there has been inserted an expansion eccentric 24 in a manner known per se. The eccentric 24 is provided with a slot, not shown in detail, in order to be able to turn the same in the recess 23 by means of a screw driver.

The vertical cover portion 21 has one of its mitered surfaces provided with a cylindrical bore 25 which is perpendicular to the mitered sectional surface. A simple smooth cylindrical clamping or tightening pin 26 is inserted into said bore 25. That end portion of the tightening or clampingpin 26 which is closest to the bottom of bore 25 has a transverse bore 27 for receiving a locking pin. This locking pin which is not illustrated' and may consist, for instance, of a nail, is hammered in from the rear side of the cover into the vertical cover portion 21 until it extends into the transverse bore 27 and thereby connects the pin 26 firmly and in a safe manner to the cover portion 21. It is only this design and connecting manner of the pin 26 which makes it possible to' insert thepin 26 into the narrow end face or side surface of a relatively thin wooden board as it is generally used for frames or sashes and covers and which furthermore makes it possible to connect therein to the thickness tolerances of the wall and no visible cover 2 forms a rectangularly cutout step for a door.

abutment. The depth of this cutout or step may whenever necessary be post machined in view of occurring tolerances and this may be done by a chip removing operation in conformity with the thickness of the door plate to be inserted into the sash. A substantially L- shaped seal is inserted into said cutout or step. The leg 12 of said cutout which extends in a plane parallel manner with regard to the plane of the cover is flush with the visible wide side of the lining 1. The leg 13 which extends vertically with regard to the plane of the cover is longer than the tolerance depth of the recess on the lining face side, said tolerance depth being measured in a direction perpendicular to the cover plane and the wall sides. In this way, by means of the seal, the postma- 'chined recessv surfaces of the lining which are plane parallel and perpendicular to the plane of the coverings can be covered optically so that with a frame or sash which was finished varnished prior to its installation or was finished veneered no post varnishing or.veneering of the post-planed recess will be necessary. Advantasaid pin 26 in such a way that neithera splitting or tearing of the wood will result when the pin 26 is connected in the receiving bore. In this way also unduly high clamping and pulling forces will be prevented from accidentally pulling pin 26 out of its receiving bore. That end of the pin 26 which protrudes from the cover portion 21 has a hammerhead shape and protrudes from the cover or facing portion 21 to such an extent that it can be passed through a bore 28 of the horizontal cover or facing portion 22 with the necessary and sufficient play in this bore 28 into the clamping eccentric occupying its unlocking position. By turng the eccentric 24, the hammer-shaped end of the pin 26 is caught from behind by a wedge-shaped portion of the eccentric as shown in the drawing and is additionally pulled into the horizontal covering or facing portion 22. In this way, the two facing portions are pulled against each other in a strongand in a gap-tight manner.

In order to precisely align the two facing portions and to secure them against distortion and shearing, two guiding dowels 29 are provided which extend perpendicularly with regard to the mitering surface and are inserted in corresponding guiding bores on the mitering surfaces of the two facing portions. The dowels 29 may loosely, i.e., without being glued extend on both sides into the guiding bores. Advantageously, the clamping or tightening pin 26 has that portion thereof which protrudes from the respective receiving bore provided with a non-illustrated marking which is so arranged with regard to the transverse bore that when the marking is located for instance precisely at the mitering sectional surface of the facing portion 21 and is also perpendicular to the broad side to the facing portion 21, a nail inserted into the facing portion 21 at the marking point will precisely hit the transverse bore.

As will be seen from the above, the frame or sash according to the present invention has in particular the following advantages. All plug connections between the facing and the wall as well as between the facing and the lining are not visible from the outside and can be produced and connected in a precise and simple manner. Holding means for the frame or sash as they were heretofore required and had to be plastered into the masonry or cemented thereinto or had to be otherwise connected thereto will no longer be necessary. The filling in between the masonry and the lining for the frame or sash likewise becomes superfluous inasmuch as no direct connection of the lining with the masonry exists or is necessary. Inasmuch as the connection of the frame or sash is effected at its facing and therefore the lining can be maintained in a definite spaced relationship from the masonry, it will be appreciated that prior to the installation of the frame or sash, blind linings or the like as templet for the plastering of the raw masonry can be employed and do not have to be removed. When exchanging the frame or sash or other parts, the effective bores for the connecting dowels can again be used so that additional plastering and papering work will not be necessary.

From the preceding description it will also be evident that the connection according to the present invention has the great advantage over all heretofore employed steps in connection with the assembly of sashes or frames, that the assembly of the sash or frame and its installation into a wall breakthrough can be carried out very quickly, that a gluing at the corner connections of the cover or facing is not necessary, that the connection, nevertheless, is gap tight and resistant to distortions and shearing, and that all parts of the corner connection are invisible from the outside.

It is, of course, to be understood that the present invention is not limited to the specific showing and the specific application as disclosed hereinbefore, but also comprises any modifications within the scope of the appended claims. Thus, the described connection between two cover or facing portions of a frame or sash can with the-same advantages also be employed for other similar or like framework as, for instance, with the covers of so-called through pass (Durchreichen). The connection may also in the same manner be advantageously employed in order from skirtings or moldings which have been prefabricated for reasons of mass production at standard length, to put together skirtings or moldings of any desired length in a gap-tight and distortion resistant manner without having to resort to gluing.

What I claim is:

1. A door frame for an opening through a wall to receive a door, said frame comprising liner members having side surfaces parallel to and spaced approximately the thickness of said wall and extending along the sides and top of said opening and secured together at the corners, facing members for covering the faces of said wall surrounding said opening, said facing members on each side of said wall having fasteners connecting the top and side members at the corners and overlapping the side surfaces of said liner members, a plurality of cylindrical-shaped dowel fasteners perpendicular to the faces of said wall and fitting in holes in the faces of said wall and in holes in said facing members of less depth than the thickness of said facing members to form concealed fasteners, and means to fasten said facing members to opposite side edges of said liner members, said means comprising cylindrical-shaped dowel fasteners parallel to said first dowel fasteners in holes in one side surface of said liner members and in holes in the facing members on one side of said wall of less depth than the thickness of said facing members to form concealed fasteners, one side edge of the liner members having a cutout step inwardly of the side surface on the face opposite the wall to form a door abutment, the opposite side edge of said liner members having a cutout step on the opposite face adjacent the wall receiving the facing member on that side edge, the side surface on said side edge being formed by the bottom of said cutout step.

2. In a door frame as claimed in claim 1, in which the corners of said facing members are mitered, and the members are connected by concealed dowel-shaped fasteners fitting in holes in the mitered members, and a concealed clamping fastener between said members is operable from the rear side of said facing members to draw and secure said mitered members together.

3. A frame in combination according to claim 1, in which the facing members include a vertical side piece and a horizontal upper piece abutting each other so as to form a corner, and which includes disengageable connecting means holding together said abutting portions of said side and upper pieces, said disengageable connecting means comprising tightening eccentric means rotatably inserted into the back side of one of said pieces and also comprising a straight tightening pin having a smooth cylindrical portion inserted into a receiving bore formed in the other one of said two pieces forming said corner, said receiving bore extending perpendicularly with regard to the contacting surface of said last mentioned other one piece, said tightening pin having its cylindrical portion provided with a transverse bore, locking pin means inserted from the back side of the last mentioned piece and engaging said transverse bore so as to firmly connect said pin means with said last mentioned piece, that end of said locking pin means which is adjacent to said tightening eccentric means being hammer head shaped and being adapted to extend into the said tightening eccentric means, those surfaces of a corner forming pieces which contact each other at said corner being provided with guiding means detachably engaging perpendicularly with regard to the said contacting surfaces.

4. A frame in combination according to claim 3, in which the two pieces forming a corner have their abutting surfaces at said corner mitered, and in which the tightening pin means extend perpendicularly with regard to said abutting surfaces, said guiding means comprising at least two dowels extending at a right angle with regard to said abutting surfaces and engaging corresponding guiding bores in both of said corner forming pieces.