RU79464U1 - CURVED CORNER PROFILE - Google Patents

Abstract

The utility model relates to metal processing by pressure, namely to the processes of bending and corrugating of profile metal and can be used, for example, for the manufacture of stiffeners of the roof of a mobile building, including the roof of a car-house.

A curved corner profile containing two shelves is made curved along a curved line in the longitudinal direction, while one of the shelves contains corrugations. The curve line along which the corner is bent is formed by the conjugation of arcs of circles of different radii. Corrugations can be made both at the same and at different distances from each other. The curved corner is made of a hot-rolled steel corner or a steel bent corner.

The utility model expands the scope of application of curved corners, increases operational and consumer properties, increases the availability of manufacture and use of curved corners, expands technological capabilities through the use of widespread, universal press equipment.

Description

The utility model relates to metal processing by pressure, namely to the processes of bending and corrugating of profile metal and can be used, for example, for the manufacture of stiffeners of the roof of a mobile building, including the roof of a car-house.

The wagon-house is a non-self-propelled mobile building designed for comfortable living and working shift crews in the field. The inventive product is designed primarily for the construction of the roof of the car-house, and is used as a stiffener for the construction of the so-called "round" roof. The manufacture of stiffeners for such a roof is carried out by bending a corner profile. The "round" roof has a higher bearing capacity, its use, compared with a flat one, significantly improves the external design of the product and eliminates the formation of condensate inside the metal structure. In addition, the operation of a "round" roof does not require large expenditures, since it does not delay atmospheric precipitation, such as snow and rain. When constructing a "round" roof, one of the problems is the manufacture of stiffeners of the appropriate configuration. The requirement of the most ergonomic design of the “round” roof is to use a stiffener curved along an arc formed by pairing arcs of circles of different radii, while the basic technologies for manufacturing curved profiles form a profile curved along an arc of one radius.

It is widely known in practice that a bent hot-rolled or bent corner profile (hereinafter referred to as a corner) is made by making parallel cuts on one of its shelves with subsequent bending of the corner and welding of the cuts.

The disadvantage is the high complexity of manufacturing the product, reducing the quality of the curved corner, which leads to a decrease in the bearing capacity and strength of the roof of the wagon-house.

The closest analogue adopted for the prototype is a curved corner, described in the method of manufacturing a bent corner profile (patent RU 2302310, s.14.04.2003, op.10.07.2007), made of a cold bent corner with a thickness of S = 0.8 ... 1 , 5 mm, one of the shelves of which is curved along an arc of a circle of a given radius R, and wave-shaped corrugations are formed on the other shelf. This bent corner is made on a special device that performs an arcuate bend of the corner by “corrugating” one of its shelves with two conical rollers made in the form of gears with rounded teeth of the corresponding configuration.

The disadvantage of the design is the constant bending radius of the corner. The use of this curved corner for the manufacture of the roof of the carriage of a house causes an overspending of metal, the internal volume of the carriage of a house is also significantly increased, heating of which in winter significantly increases energy consumption. In addition, the manufacture of a known curved corner requires specialized sophisticated equipment. Also of the shortcomings, it is possible to note the impossibility of bending hot-rolled corners by the above method.

The task this utility model is aimed at expanding the scope of application of curved corners, increasing operational and consumer properties by manufacturing a curved corner from any corner profile (both from a bent corner and

and from a hot-rolled corner), also the manufacture of a curved corner of the required configuration, which allows consumers to be provided with a product designed and manufactured according to their individual sizes. Another objective is to increase the availability of manufacturing and use of curved corners, expanding technological capabilities through the use of widespread, universal press equipment.

To solve the problem in a curved corner profile containing two shelves, and made curved along a curved line in the longitudinal direction, while one of the shelves contains corrugations, according to a useful model, the curved line along which the corner is curved is formed by pairing arcs of circles of different radii.

The curved line is formed by the conjugation of circular arcs of at least two radii.

The corrugations are made at the same distance from each other.

The corrugations are made at different distances from each other.

The distance between the corrugations in the central part of the shelf is greater than the distance between the corrugations in the peripheral parts of the shelf.

Corrugations have the same height.

The corrugations have different heights.

The height of the corrugations in the central part of the shelf is less than the height of the corrugations in the peripheral parts of the shelf.

The curved corner is made of a hot-rolled steel corner or a steel bent corner.

The utility model is illustrated by drawings.

Figure 1 shows a General view of a curved corner.

Figure 2 shows a section aa in figure 1

Figure 3 shows a fragment of a curved corner, diagram

Corner 1 with shelves 2 and 3 is made curved along a curved line, which is formed by pairing arcs of circles of different radii R1 and R2. Shelf 2 includes corrugations 4. Corrugations 4 are located at some distance from each other. The distance L ₁ between the corrugations 4 on the shelf 2 of the central part 5 of the curved corner 1 is greater than the distance L ₂ between the corrugations 4 on the peripheral parts 6 of the curved corner 1. The height of the corrugations H of the curved corner 1 is the same.

The inventive curved corner is made by cold stamping, for example, on a mechanical crank press. This universal device is publicly available and easy to operate, has a simple snap. With its help, on the shelf 2 at a certain distance from each other, local hoods are made - corrugations 4, and the height H _{1 of} all corrugations 4 is the same. Simultaneously with the formation of the corrugations 4, the shelf 3 is bent. With an equal height H ₁ and the length L _{3 of the} corrugations, the radii R ₁ and R ₂ determine the distance between the corrugations. The formation of the required configuration is carried out by changing the distance between the corrugations. Namely, by performing a distance L ₁ greater than the distance L ₂ , a curved line is formed, the central part 5 of which has a radius R ₁ greater than the radius R _{2 of the} peripheral parts 6 of the corner. For a given height H _{1 the} length of the corrugations L ₃ and the distance L ₁ and L _{2 are} determined experimentally. When determining the length of the corrugations L ₃ , the possibility of the appearance of "crescent", loss of stability of the flange of the corner subjected to stamping is taken into account.

Another example of a curved corner involves the manufacture of corrugations at the same distance from each other. The achievement of the desired shape of the product in this case is carried out by varying the height H ₁ corrugation.

The manufacture of the claimed product is carried out from a hot-rolled steel corner or steel bent corner. Curved corners

are used, as a rule, as finished parts for various purposes. The shape and dimensions are worked out depending on the wishes of the customer.

One example of a bent corner, used as a stiffener for the roof of a carriage, is made of a hot-rolled equal-angle corner and has the following dimensions: shelf width 45mm; thickness 4 mm; corrugation height H ₁ = 9 mm; corrugation length L ₃ = 28 mm; the distance between the corrugations in the Central part L ₁ = 180 mm; the distance between the corrugations in the peripheral parts L ₂ = 75 mm; the height of the finished product N = 400 mm; finished product length L = 2450 mm.

Compared with the prototype of the claimed utility model has the following advantages.

The possibility of obtaining a curved corner of a given shape, as well as the use of not only bent, but also hot-rolled corners, can significantly expand the scope of curved corners, increasing their operational and consumer properties.

The use of widespread, universal press equipment significantly expands technological capabilities, as well as increases the availability of manufacturing and use of curved corners.

Claims (9)

1. A curved corner profile containing two shelves and made curved along a curved line in the longitudinal direction, while one of the shelves contains corrugations, characterized in that the curved line along which the corner profile is curved is formed by pairing arcs of circles of different radii. 2. The curved corner profile according to claim 1, characterized in that the curved line is formed by the conjugation of circular arcs of at least two radii. 3. The curved corner profile according to claim 1, characterized in that the corrugations are made at the same distance from each other. 4. The curved corner profile according to claim 1, characterized in that the corrugations are made at different distances from each other. 5. The curved corner profile according to claim 1, characterized in that the distance between the corrugations in the central part of the shelf is greater than the distance between the corrugations in the peripheral parts of the shelf. 6. The curved corner profile according to claim 1, characterized in that the corrugations have the same height. 7. The curved corner profile according to claim 1, characterized in that the corrugations have different heights. 8. The curved corner profile according to claim 1, characterized in that the height of the corrugations in the central part of the shelf is less than the height of the corrugations in the peripheral parts of the shelf. 9. The curved corner profile according to claim 1, characterized in that it is made of a hot-rolled steel corner or a steel bent corner.