RU65546U1 - PROFILE FOR MAKING A STEEL DOOR - Google Patents

Abstract

The proposed technical solution relates to the production of metal structures for entrance doors with power structures from bent metal profiles having a closed cross section.

The technical task is to obtain a bent profile of a closed cross section for the manufacture of a steel door, with the door structure using a metal profile with a thickness of at least 1.5 mm of the required structural rigidity and reliability of its joints while ensuring its required durability.

This is achieved by the fact that the profile for the manufacture of a steel door is made of steel tape or sheet and having a stand, the lower part of which is bent perpendicular to form the lower shelf, and the upper part is bent in the opposite direction with the formation of the upper shelf of double thickness, having a parallel bend down and a single thickness protrusion parallel to the lower shelf and not exceeding it in width, and the distance between the limb and the rack is less than the width of the lower shelf. At the same time, the limb height is less than the width of the protrusion, and the height of the rack is equal to twice the sum of the width of the upper shelf and the width of the protrusion.

Description

The proposed technical solution relates to the production of metal structures for entrance doors with power structures from bent metal profiles having a closed cross section.

Known bent profile, made in the form of a rack with shelves directed in opposite directions (http://www.ukkon.ru/newdemon 01.2007).

The closest known one is a bent channel type profile containing a wall and equal vertical height flanges, one of which has a flange inside the profile, while all profile elements are joined by four bending sections, the second vertical shelf is made with a double thickness element, the width of which is 0.65 -0.75 from the height of the shelf, and the flanging is made with a width of at least three profile thicknesses (RU No. 2124408 C1, 1999).

Known solutions do not provide the required rigidity and durability of the structure during the manufacture of its constituent bent profiles from metal with a thickness of 1.5 mm.

The technical task is to obtain a bent profile of a closed cross section for the manufacture of a steel door, with the door structure using a metal profile with a thickness of at least 1.5 mm of the required structural rigidity and reliability of its joints while ensuring its required durability.

This is achieved by the fact that the profile for the manufacture of a steel door is made of steel tape or sheet and having a stand, the lower part of which is bent perpendicular to form the lower shelf, and the upper

part - bent in the opposite direction with the formation of the upper shelf of double thickness, having a bend downward parallel to the rack and a single thickness protrusion parallel to the lower shelf and not exceeding its width, and the distance between the bending and the rack is less than the width of the lower shelf. At the same time, the limb height is less than the width of the protrusion, and the height of the rack is equal to twice the sum of the width of the upper shelf and the width of the protrusion.

Figure 1 presents a General view of a section of a profile for the manufacture of a steel door;

Figure 2 is a cross section of a profile for the manufacture of a steel door.

The profile for the manufacture of a steel door is made by bending on special equipment of steel tape or sheet. The profile is formed by the stand 1, the lower part of which is bent perpendicular to form the lower shelf 2. The upper part of the rack is bent in the opposite direction with the formation of the upper shelf 3 of double thickness. Shelf 3 has a parallel to the rack 1 bend 4 down and a single thickness of the protrusion 5. The protrusion 5 is parallel to the lower shelf 2 and does not exceed it in width. The distance between the limb 4 and the rack 1 is less than the width of the lower shelf. Moreover, the height of the limb 4 is less than the width of the protrusion 5, and the height of the rack 1 is equal to twice the sum of the width of the upper shelf 3 and the width of the protrusion 5.

Such a profile allows you to get an element that, in addition to the required strength parameters, allows you to expand the range of its use in the design of the steel door in various combinations and combinations.

Execution Example:

The stand has a height of 60 mm, the width of the lower shelf 20 mm, the bend downwards has a height of 6 mm, the sum of the width of the upper shelf 3 and the width of the protrusion 5 is 30 mm, the distance from the protrusion to the rack is 15 mm.

Claims (2)

1. Profile for the manufacture of a steel door made of steel tape or sheet and having a stand, the lower part of which is bent perpendicular to form the lower shelf, and the upper part is bent in the opposite direction with the formation of the upper shelf of twice the thickness, having a parallel bend downward and single thickness a protrusion parallel to the lower shelf and not exceeding it in width, and the distance between the bend and the rack is less than the width of the lower shelf. 2. The profile for manufacturing a steel door according to claim 1, in which the height of the limb is less than the width of the protrusion, and the height of the rack is equal to twice the sum of the width of the upper shelf and the width of the protrusion.