RU2236529C1 - Metal door - Google Patents

Abstract

FIELD: building, particularly metal doors.

SUBSTANCE: metal door includes case, door leaf welded to case and hinge connection to secure thereof with door opening. Door leaf includes three sheets welded one to another. Intermediate sheet has depression arranged along door vertical line and forming windows. Windows are closed with inner flanges of channel members from intermediate sheet top and bottom. Channel members create door case. Edges of channel members are connected to inner edges of upper and lower sheets with forming L-shaped connection area along depression width and T-shaped connection area along joints between sheets located outside depression. Crimped area is formed along full door leaf length. Crimped area is fixedly connected with ends of horizontal channel members. Another ends of these horizontal members are connected with ends of vertical channel member. Crimped area of door leaf is secured with inner surface thereof by angle member joined by its ends with flanges of horizontal channel members.

EFFECT: increased door leaf manufacturability and rigidity.

2 cl, 8 dwg

Description

The invention relates to construction, namely to metal doors, and can be used in the construction of residential and office buildings

Known security door (St. on utility model of the Russian Federation No. 603, E 06 B 3/70, bull. PMPO No. 7, 1999), containing a doorway, a metal door leaf, hinged in the doorway, a reinforcing element (frame) rigidly fixed to the door leaf around its perimeter. The disadvantage of this design is the high complexity of the design and weight gain due to the introduction of an additional frame, i.e. low manufacturability.

The closest technical solution, selected as a prototype, is a metal door (St. on utility model of the Russian Federation No. 3004, E 06 B 3/70, bull. PMPO No. 10 of 10.16.96), containing a doorway, a metal door frame with a metal sheet welded to it, hinged connection of the door with the doorway.

The disadvantage of this design is the design complexity due to the use of a large number of structural elements to stiffen the door leaf, i.e. low manufacturability.

The problem solved by the invention is to increase the manufacturability and rigidity of the door leaf.

-образным или

-образным углублением по вертикали, а образованные вертикальным углублением окна сверху и снизу среднего листа перекрыты внутренними полками горизонтальных швеллеров рамы, связанными своими кромками Г-образно с внутренними кромками верхнего и нижнего листов по ширине углубления и Т-образно со стыками между листами за его пределами. Со стороны шарнирного соединения по всей длине дверного полотна выполнена отбортовка, жестко связанная с торцами горизонтальных швеллеров, противоположные торцы которых связаны с торцами вертикального швеллера, при этом отбортовка полотна двери жестко связана с его внутренней плоскостью уголком, жестко связанным своими торцами с внутренними полками горизонтальных швеллеров.This task is performed due to the fact that in a known metal door containing a metal frame with a metal sheet welded to it and a hinge to the doorway, the metal door leaf is welded from three sheets, the middle sheet is made with

-shaped or

-shaped vertical recess, and the windows formed by the vertical recess above and below the middle sheet are overlapped by the inner shelves of the horizontal channels of the frame, connected by their edges L-shaped with the inner edges of the upper and lower sheets along the width of the recess and T-shaped with joints between the sheets outside . From the side of the hinge joint along the entire length of the door leaf, a flanging is made rigidly connected to the ends of the horizontal channels, the opposite ends of which are connected to the ends of the vertical channel, while the flanging of the door leaf is rigidly connected with its inner plane by a corner rigidly connected by its ends to the inner shelves of the horizontal channels .

The above signs are significant and, in combination, allow us to solve the problem.

-образное или

-образное углубление по всей длине среднего листа, что придает ему высокую жесткость.The execution of the door leaf of three sheets allows with high adaptability, for example, on a bending machine, to be welded together

-shaped or

-shaped recess along the entire length of the middle sheet, which gives it high rigidity.

-образная или

-образная форма углубления, а также его ширина, глубина и угол наклона полок обусловлены размерами дверного проема, толщиной материала, размерами конструктивных элементов рамы, типом применяемого оборудования и т.п., то есть конструктивными и технологическими требованиями.

-shaped or

-shaped form of the recess, as well as its width, depth and angle of inclination of the shelves are determined by the dimensions of the doorway, the thickness of the material, the dimensions of the structural elements of the frame, the type of equipment used, etc., that is, the structural and technological requirements.

The execution of the upper and lower sheets of the door leaf flat provides a snug fit of the edges of the inner shelves of the horizontal channels of the frame over the entire width of the sheets, which ensures the stiffness of the door leaf in cross section. The ratio of the sizes of the height of the sheets is also due to design requirements and, as a rule, depends on the height of horizontal channels, which can be either standard or individual production, for example, on a bending machine.

The width of the shelves of the horizontal channels, which can be either equal to or greater than the width of the shelves of the recess of the middle sheet, is also selected based on the design and technological requirements.

The connection of the edges of the inner shelves of the horizontal channels of the frame L-shaped with the inner edges of the flat sheets along the width of the recess and T-shaped with the joints between the sheets outside it, provides high manufacturability due to the simultaneous welding of all elements of the joints and gives the required rigidity to the door leaf.

Performing a flanging along the entire length of the door leaf from the hinges and connecting it with a corner with the inner plane of the door leaf gives the door edge additional rigidity and enables the installation of hinges of any of the well-known structures. A variant is possible, instead of flanging and connecting corner, installing another vertical channel close to the door edge.

The installation of a corner connecting the flanging of the door leaf with its inner plane between the inner shelves of the horizontal channels with a rigid connection with them with their ends, closes the door frame and gives additional rigidity to the door leaf.

The vertical channel, locking the door frame, provides rigidity to the frame.

The connection of the ends of the horizontal channels with the ends of the vertical channel on the one hand and with the flanging on the hinges side provides the required rigidity of the frame and the edge of the door leaf associated with the mating elements of the hinge, fixed in the doorway, which can be either with frames of any configuration or without frames that provides high adaptability.

Installation of horizontal and vertical channels of the frame with a deviation from the edges of the door leaf and a cut of the upper and lower edges of the door leaf flush with its inner plane to the outer shelves of the horizontal channels provides a snug fit of the door to the outer plane of the doorway, which allows you to install the door in any doorway or frame doorway of any configuration, which corresponds to increased manufacturability.

The placement of the door frame inside the doorway and the overlapping edges of the door leaf protruding from the outer shelves of the channels provide overlap of the gap between them and the doorway, which allows the door leaf and frame to be made according to free tolerances, which also increases the manufacturability of the door structure.

The door may be designed with the installation of two vertical and two horizontal channel channels of the frame along the edges of the door leaf. In this case, there is no need to flang the door leaf with the installation of a connecting corner. In this embodiment, the door is installed inside the doorway without overlapping gaps.

-образного или

-образного вертикального углубления в полотне двери и перекрытие его окон сверху и снизу внутренними полками горизонтальных швеллеров придает средней части полотна двери высокую жесткость, одновременная сварка Г-образно и Т-образно прилегающих кромок листов повышает технологичность конструкции, а рама двери, образованная швеллерами, отбортовкой полотна и уголком, жестко связанными между собой и с плоскостью полотна с помощью сварки, придает высокую жесткость периметру полотна двери.The implementation of the door from a small number of structural elements assembled using a minimum number of technological operations, namely, cutting (cutting) is flexible and welding, ensures high adaptability of the design. Performance

-shaped or

-shaped vertical recesses in the door leaf and the overlapping of its windows from above and below by the internal shelves of horizontal channels gives the middle part of the door leaf high rigidity, simultaneous welding of L-shaped and T-shaped adjacent sheet edges increases the manufacturability of the structure, and the door frame formed by channels, flanging cloth and corner, rigidly connected between themselves and with the plane of the cloth by welding, gives high rigidity to the perimeter of the door leaf.

The proposed technical solution provides high adaptability, gives additional rigidity to the door, and the combination of features characterizing the claimed object, causes the appearance of such a technical result, which provides a solution to the problem of the invention.

The analysis of the prior art shows that the metal door is not known, which has inherent features identical to all the essential features of this technical solution, which indicates its unknownness and, therefore, novelty. As for the features that distinguish the proposed object from the closest analogues, although some signs are found in other known solutions, however, the influence of these signs on the above technical result is unknown, which allows us to conclude that the proposed solution meets the inventive step.

When carrying out the invention, the presence of the proposed object is really realized, which indicates the industrial applicability of the invention.

Figure 1 shows a front view of a metal door (doorway not shown); figure 2 is a section aa in figure 1 (with the location of the door in the doorway); figure 3 is a section bB in figure 1; figure 4 - section bb in figure 1 (with the location of the door in the doorway); figure 5 is a rear view of the door; figure 6 is an embodiment of the door frame (rear view of the door); in Fig.7 is a section GG in Fig.6; on Fig - section DD in Fig.6 (with the location of the door in the doorway).

The metal door (Fig. 1) comprises a door leaf consisting of upper and lower flat sheets 1 connected end-to-end with the middle sheet 2. A recess 3 is made in the middle part of the sheet 2 and extends along its entire length (height). The upper and lower windows 4, formed by the recess 3 (Fig.2, 4) are overlapped by the inner shelves 5 of the horizontal channels 6 (Fig.2), and the edges of these shelves are T-shaped adjacent to the joints 7 between the sheets 1, 2 (Fig.3) outside the windows 4 and L-shaped to the edges 8 of the sheets 1 in the windows 4 (figure 2). Two horizontal channels 6 (Fig.2-5), with their ends 9 (Fig.5) are connected to the ends of the vertical channel 10. The opposite ends 11 of the horizontal channels 6 from the side of the hinges 12 are connected with the inner plane of the flanging 13, which runs along the entire length of the door leaf and the edge of the flanging 13 is connected by a corner 14 with the inner plane of the middle sheet 2 (figure 4). The upper and lower edges of the flanging 13 of the door leaf are cut flush with its inner plane to the outer shelves 15 of the horizontal channels 6 (Fig. 5). Thus, it turns out the door frame, consisting of two horizontal 6 and 10 vertical channels and flanging 13 with corner 14. The door frame is placed inside the doorway 16 (Fig.2, 4), while the inner plane of the door leaf protruding from the outer shelves of the channels 6, 10, on three sides overlaps the gap between the door frame and the doorway.

Figures 6-8 show one of the possible door manufacturing options with a metal frame made of two horizontal 17 and two vertical 18 and 19 standard, made of rolled channel channels, placed close to the edges of the door leaf. At the same time, the height of the channels can have a different size. In the embodiment shown in Fig.6-8, the channels are not connected end-to-end with the ends cut off at an angle of 45 °, as shown in Fig.5, but by fitting the ends to the shelves of adjacent channels, while the open ends of the channels can be closed with plugs 20. Possible also other known options for performing joints. With this constructive embodiment, the door is flush inside the doorway with a predetermined gap between the latter and the edges of the door leaf bounded by channels (Fig. 8).

As an example, the manufacturing option of the metal door shown in FIGS. 1-5 can be considered.

-образного или

-образного углубления 3. Затем, например, на гибочном станке выполняет данное углубление. После этого листы 1 и 2 укладывают лицевой стороной вниз на монтажную плиту или другую ровную поверхность и состыковывают между собой. Стыки 7 прихватывают прерывистым швом в нескольких местах. На гибочном станке выполняют отбортовку 13 и полотно двери вновь укладывается на монтажную плиту. Затем по требуемым размерам изготавливают горизонтальные 6 и вертикальный 10 швеллеры. Горизонтальные швеллеры 6 прикладывают торцами 11 к отбортовке 13. При этом их внутренние полки 5 полностью перекрывают окна 4, образованные углублением 3 листа 2. К торцам 9 горизонтальных швеллеров 6 прикладывают торцы вертикального швеллера 10. Все элементы конструкции фиксируют, например, прижимами на монтажной плите и начинают сваривать стыки и периметры мест прилегания сопрягаемых деталей. Вся сварка производится с внутренней стороны полотна двери прерывистым или сплошными швами в зависимости от конструктивных требований. Затем отрезают в размер между внутренними полками 5 горизонтальных швеллеров 6 уголок 14 и приваривают его к кромке отбортовки 13, к внутренней плоскости полотна двери и к внутренним полкам 5 горизонтальных швеллеров 6. Дверь переворачивают и в нескольких местах прихватывают или проваривают сплошным швом стыки 8 по ширине окон и зачищают заподлицо с основным металлом. На дверь могут быть установлены на сварку или на болты шарниры 12 различного конструктивного исполнения. После закрепления шарниров 12 на двери и в дверном проеме, дверь готова к эксплуатации.First, for example, blanks of sheets 1 and blanks of the middle sheet 2 are cut down on guillotine shears, taking into account the development

-shaped or

-shaped recess 3. Then, for example, on the bending machine performs this recess. After that, sheets 1 and 2 are laid face down on a mounting plate or other flat surface and are joined together. Joints 7 are seized with an intermittent seam in several places. On the bending machine, flanging 13 is performed and the door leaf is again laid on the mounting plate. Then, according to the required dimensions, horizontal 6 and vertical 10 channels are made. The horizontal channels 6 are applied with the ends 11 to the flange 13. At the same time, their inner shelves 5 completely overlap the windows 4 formed by the recess 3 of the sheet 2. The ends of the vertical channel 10 are applied to the ends 9 of the horizontal channels 6. All structural elements are fixed, for example, by clamps on the mounting plate and begin to weld the joints and perimeters of the fit areas of the mating parts. All welding is done on the inside of the door leaf with intermittent or solid seams, depending on the design requirements. Then cut into the size between the inner shelves 5 horizontal channels 6 corner 14 and weld it to the edge of the flanging 13, to the inner plane of the door leaf and to the inner shelves 5 horizontal channels 6. The door is turned over and in several places, joints 8 are welded or welded with a continuous seam along the width windows and strip flush with the base metal. The hinges 12 of various designs can be mounted on the door for welding or on bolts. After fixing the hinges 12 on the door and in the doorway, the door is ready for operation.

Claims (2)

1. A metal door comprising a frame with a door leaf welded to it and a hinge with a doorway, characterized in that the door leaf is welded from three sheets, the middle sheet is made with a vertical recess, and the windows formed by the vertical recess are closed from above and below the middle sheet inner shelves of horizontal channels of the frame, connected by their edges L-shaped with the inner edges of the upper and lower sheets along the width of the recess and T-shaped with joints between the sheets outside, on the side of the hinge molecular compounds over the entire length of the door leaf is formed a flange rigidly associated with the ends of the horizontal channels, the opposite ends of which are connected with the ends of the vertical channel, wherein the flange of the door leaf is rigidly connected to the inner plane area, is rigidly connected by its ends with internal shelves of horizontal U-sections. 2. The metal door according to claim 1, characterized in that the horizontal and vertical channels of the frame are installed with a deviation from the edge of the door leaf, the upper and lower edges of the flanging of the door leaf are cut flush with its inner plane to the external shelves of the horizontal channels, the door frame is placed inside the door the opening, and the edges of the door leaf protruding beyond the outer shelves of the channels overlap the gap between them and the doorway.

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