RU14962U1 - PROTECTIVE BLINDS BLINDS - Google Patents

Description

2000109228

Iliillpllili

E 06 at 9/18

PROTECTIVE BLINDS - SHAFT

The invention relates to the design of roller blinds for roller shutters designed for installation in window, door and door openings for sun protection, thermal protection and weather protection, as well as for protection against unauthorized entry into the room.

Proma protective shutters are known, containing a box in which a profiled octagonal shaft is mounted in the bearings and driven by an electric motor, profiles are lamellas connected to each other to form a web, the upper of the lamella profiles is attached to the profiled shaft by means of a lamella holder, and the lower one is equipped with a lock mounted on the bar, with the side surfaces of the web of profiles-lamels interacting with the guides of the canvas, fixed to the building structure.

The described design has good performance, however, it is not fully adapted to the production and climatic conditions of Russia.

The problem solved by the utility model is to simplify the design of the roller shutter shaft while providing a sufficiently wide range of its sizes.

The problem is solved due to the fact that in the design of protective shutters - shutters containing a box in which an octagonal hollow shaft is installed, connected to the drive, a web fixed to the shaft and formed from lamellas movably connected to each other, the cavity of which is filled with heat and / or soundproofing material and web guides mounted on the wall of the building, the octagonal hollow shaft is made of flexible steel tape with the formation of a closed octagonal profile with a connection in the seam, m the ratio of the wall thickness to the minimum external shaft size is from 1.1 to 2.5%.

The diameter of the shafts can be D 40 - 150 mm, and the wall thickness h 0.6 - 2.0

The technical result of using the utility model is to obtain a simple technological design of the device, which can be made of domestic materials in our production conditions, while the range of manufactured device sizes is quite wide.

The utility model is illustrated by drawings, which depict:

in FIG. 1 - a general view of wired blinds - shutters;

in FIG. 2 - transverse section of the protective blinds - shutters;

in FIG. 3 - the main view of the shaft;

in FIG. 4 - cross section aa;

in FIG. 5 - connection of the edges of the shaft in the rebate.

Protective blinds - roller shutters include a metal or PVC box 1 with lids 2, installed in the opening of a window, door, gate or superimposed on a wall from the outside or inside. Inside the box 1, in the bearings 3, a hollow steel shaft 4 is mounted, on which the web 5 is fastened and wound. The web 5 is formed of lamellas 6 movably connected to each other, which are an aluminum or steel profile, the cavity of which is filled with heat and / or sound insulating material 7, for example, polyurethane.

The rotation drive of the shaft 4 is carried out manually from within the premises by means of a pulling tape in the cassette or a worm gear (not shown) or an electric motor 8 installed inside the shaft 4.

The canvas 5 of the lamellas 6 is fixed on the shaft 4 by means of lamellar holders 9 and moves along steel guides 10 fixed in the opening of the building wall. Guides can be installed both in the window or door aperture, and can be superimposed on the wall from the outside, if they are not installed during the construction process, but on the already constructed building.

The octagonal hollow shaft 4 and the blade 5 are made of perforated galvanized steel strip by bending it on a roll forming mill. For a hollow shaft, 4 edges of the tape are connected by an AND connection. The connection 11 in the seam can be both external and internal. Compound 11 has a leading edge along

relative to the direction of rotation of the shaft, the bend 12 inward is 180 °, and on the other edge, except for a similar bend 13 which engages with the first, an additional step 14 in contact with the bend 12 of the first edge.

The ratio of the wall thickness h of the shaft 4 to the minimum external size of the perforated shaft D is from 1.2 to 2.2%, which ensures lightness and strength of the structure. Furthermore, the shaft diameter can be D 40 150 mm, and the wall thickness h 0.6 - 2.0 mm.

The following are examples for shafts of various sizes, indicating their moments of inertia. The diameter of the shaft and its wall thickness (D x h) are indicated in parentheses.

(40x0.6) J, 1.9 cm and Jy 1.61 cm

or (40x0.6) J, 1.99 cm and Jy 1.61 cm

or (60x0.8) J 8.48 cm and Jy 7.28 cm

or (60x1.0) J 10.43 cm and Jy 9.00 cm,

or (70x1.5) J, 24.50 Jy 21.13 cm,

or (80x1.0) J, 25.70 Jy 21.62 cm,

or (80x0.8) J, 20.83 Jy 17.43 cm,

or (60x0.6) J, 6.28 Jy 5.51 cm,

or (70x1.2) J, 23.25 Jy 20.12 cm.

Shafts can have other sizes and moments of inertia.

In the wound state, the web 6 is located inside the painted decorative box 1, the color of which is selected depending on the color of the wall structure on which it is installed. The drive can be used both manual and electric (from electric motor 8). Roller shutter control is displayed inside the room (switch 15, wiring 16), and the electric motor 8 is installed inside the shaft 4.

At the free end of the web 6, you can install the bar 17 and the lock 18, fixing the canvas in the closed position.

xk: X

Claims (7)

1. Protective shutter-blinds containing a box in which an octagonal hollow shaft is installed, connected to the drive, a web fixed to the shaft and formed from lamellas movably connected to each other, the cavity of which is filled with heat and sound insulating material, and guides for the web, mounted on or in the wall of a building, characterized in that the octagonal hollow shaft is perforated, made by bending from a steel tape with the formation of a closed octagonal profile with a "folded" connection, and shenie shaft wall thickness to the minimum outer dimension of the shaft is from 1.2 to 2.2%, and the compound "in the rebate" has at the leading edge with respect to the rotational direction of the shaft 180 inside limb ^o, and the other edge than a similar bending entering into engagement with the first, an additional ledge in contact with the limb of the first edge. 2. Protective shutter-blinds according to claim 1, characterized in that the central moments of inertia of the shaft are respectively J _x = 1.9 cm ⁴ and J _y = 1.61 cm ⁴ . 3. Protective shutter-blinds according to claim 1, characterized in that the central moments of inertia of the shaft are respectively J _x = 1.99 cm ⁴ and J _y = 1.61 cm ⁴ . 4. Protective shutter-blinds according to claim 1, characterized in that the central moments of inertia of the shaft are respectively J _x = 8.48 cm ⁴ and J _y = 7.28 cm ⁴ . 5. Protective shutter-blinds according to claim 1, characterized in that the central moments of inertia of the shaft are respectively J _x = 10.43 cm ⁴ and J _y = 9.00 cm ⁴ . 6. Protective shutter-blinds according to claim 1, characterized in that the central moments of inertia of the shaft are respectively J _x = 24.50 cm ⁴ and J _y = 21.13 cm ⁴ . 7. Protective shutter-blinds according to claim 1, characterized in that the "folded" connection can be either internal or external.