RU124919U1 - CORNER CONNECTION OF PROFILES - Google Patents

Abstract

1. An angular connection of profiles, containing hollow aluminum alloy sections cut at right angles with rectangular cross-section cavities, and a connecting device comprising a first V-shaped part in plan view, each of whose two wings has a U-shaped cross section and is included in cavity of the joined profile, characterized in that the first part of the connecting device is made flexible of a sheet billet, which is a piece of steel strip with a wedge-shaped cut in the middle part and beveled angles, while the corner connection is equipped with a second part, which has a square shape in plan and is connected by resistance welding to each of the two wings of the first part. 2. The compound according to claim 1, characterized in that the second part can be provided with bends made on two adjacent sides. The compound according to claim 1, characterized in that the details of the connecting device are painted with powder paint.

Description

The invention relates to the angular connection of hollow profiles of window frames, doors, including mosquito net frames on windows.

The prior art design for the angular connection of profiles, see patent RU 17559 U1, IPC7 EV 3/96, publ. 04/10/2001, containing hollow profiles, the joined ends of which are cut at an acute angle, a connecting element made in the form of a corner with holes, and fasteners with which the connecting element is fixed in the profiles. This design has the following disadvantages:

- increased consumption of material due to the use of profiles cut at an acute angle,

- increased design complexity due to the presence of fasteners;

- increased complexity of the manufacture of the connecting element;

- low strength and durability of the corner joints, due to the implementation of the connecting element of plastic.

From the patent RU 8723 U1, IPC 6 ЕВВ 3/96, publ. 12/16/1998, there is also known a design for the angular connection of profiles, containing hollow profiles, the connected ends of which are cut at an angle, a connecting element made in the form of a corner with holes, consisting of two mutually connected parts with recesses, and fasteners, the connecting element made cast with a connector on the sides of the corner and connected by protrusions and recesses located respectively in the plane of the connector of the corner. This design has the following disadvantages:

- increased consumption of material due to the use of profiles cut at an acute angle,

- increased design complexity due to the presence of fasteners;

- increased complexity of the manufacture of the connecting element;

- low strength of the corner joints, due to the implementation of the connecting element of plastic;

- embrittlement and fading of the material of the connecting element with prolonged exposure to sunlight.

For the prototype of the claimed utility model is taken the design of the angular connection of profiles, known from the patent RU 69906 U1, IPC EV 3/20, publ. January 10, 2008, containing a connecting element of a U-shaped section with protrusions included in the response cavities of the joined profiles, while along the longitudinal sides of the protrusions the walls of the docking element have a reduced thickness or notch, and the protrusions have a thickening in the middle section in the longitudinal section.

The prototype design has the following disadvantages:

- increased complexity of manufacturing a connecting element, which is performed by molding from plastic;

- low strength and low durability of the corner joints, due to the implementation of the connecting element of plastic and the presence of latches.

The technical result to which the claimed utility model is directed is to create a design for the angular connection of aluminum alloy profiles cut at right angles, containing hollow profiles cut at right angles with cavities of rectangular cross section and a connecting device made of a thin steel sheet characterized by strength, durability and the ability to paint in various colors.

The technical result is achieved in the design of the angular connection of aluminum alloy profiles, containing hollow sections cut at right angles with cavities of rectangular cross section, and a connecting device comprising a first V-shaped part in terms of shape, each of the two wings of which has a U-shaped cross section and enters the cavity of the connected profile.

The technical result is achieved due to the fact that the first part of the connecting device is made of flexible sheet material, which is a piece of steel strip with a wedge-shaped cut in the middle part and beveled corners, while the corner joint is equipped with a second part, which has a square shape in plan and is connected resistance welding with each of the two wings of the first part. In this case, the second part may be provided with bends made on two adjacent sides. The parts of the connecting device can be painted with powder paint.

The utility model is illustrated by the following drawings.

Figure 1 presents the workpiece for the first part;

Figure 2 presents the first detail;

Figure 3 presents the workpiece of the second part;

Figure 4 presents the second detail;

Figure 5 presents the connecting device Assembly, top view;

Figure 6 presents the connecting device Assembly, bottom view;

7 shows a profile for an angular connection;

On Fig presents the angular connection Assembly;

The utility model can be successfully implemented in the design of the angular connection of aluminum alloy profiles, including two hollow profiles 12, 13 (see Fig. 7) with a rectangular cross-section cavity, cut at right angles, and a docking device, including the first part 1 V- figurative in terms of shape (see Figure 2), each of the two wings of which 2,3 has a U-shaped cross section and enters the cavity of the connected profile 12, 13.

To implement the utility model, the first part 1 of the connecting device shown in FIG. 2 is made flexible from a sheet billet 4 (see FIG. 1), which is a segment of a thin steel strip (high-quality hot-rolled steel with a thickness of 0.7 to 1 mm is used) with a wedge-shaped cutout 5 in the middle part and beveled corners 6. The corner connection is provided with a second part (see Figure 4), which is flexible from a sheet blank (see Figure 6), and which has a square shape in plan. The second part 7 may be provided with bends 8, 9, made on two adjacent sides. The second part 7 is applied to the junction of the wings 2,3 of the first part and is connected by contact welding with each of the two wings 2, 3 of the first part (see Figure 5). The welding places of the parts 1, 7 are indicated in FIG. 5 by 10, 11. The assembly of the assembly is coated with a paint, in a preferred embodiment, with a powder paint having the same color as the color of the painting of the joined profiles.

When making an angular connection, the wings 2, 3 of the first part 1 are hammered into the counter cavities of the joined profiles 12, 13 of aluminum alloy with a hammer from a polymer material, which ribs elastically against the relatively soft walls of the joined profile of aluminum alloy (see Fig. 8).

The proposed utility model allows to obtain a neat angular connection of hollow profiles (see Fig. 8) without the use of additional latches or fasteners.

Thanks to the use of a thin metal sheet, the durability of the connecting device and the corner joint as a whole is ensured. The presence of the second part, connecting the wings of the first part by contact welding, provides the connecting device with the necessary rigidity and strength.

Claims (3)

1. An angular connection of profiles, containing hollow aluminum alloy sections cut at right angles with rectangular cross-section cavities, and a connecting device comprising a first V-shaped part in plan view, each of whose two wings has a U-shaped cross section and is included in cavity of the joined profile, characterized in that the first part of the connecting device is made flexible of a sheet billet, which is a piece of steel strip with a wedge-shaped cut in the middle part and beveled angles, while the corner joint is equipped with a second part, which has a plan in the form of a square and is connected by contact welding with each of the two wings of the first part. 2. The compound according to claim 1, characterized in that the second part can be provided with bends made on two adjacent sides. 3. The compound according to claim 1, characterized in that the details of the connecting device are painted with powder paint.

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