[0001] The subject of this invention is the box of an overlay-type roller shutter, furnished
with a snap-lock enabling closing of one of two adjacent service covers.
[0002] The known boxes of roller shutters used to have their service covers fixed from underneath
or from front. Such type of a box is known from the German publication of the patent
application Nº
DE 10 2009 000 643A1. Opening and/or closing of the covers installed on the box is performed making use
of a profiled snap-fastener furnished with spring pins snapped in profiled grooves
on the covers.
[0003] The embodiment of this invention is construction of the box of an overlay-type roller
shutter, enabling opening of the box in two planes, making use the same components,
whereas either the left cover and/or the right cover has the same cellular structure.
[0004] The box of an overlay-type roller shutter, of a rectangular prism form, constructed
of plastic cellular walls separably joined, two opposite side walls of the box are
of a twin structure, characterised in that the shaped-profile slot separably joined
with the side cellular wall and/or with the bottom cellular wall is set in the inner
corner of the said box, the slat in its cross-section perpendicular to the lengthwise
axis has the shape of a near isosceles right-angle triangle, whereas at the side of
the slat, there is a T-shaped guide placed inside the recess of the bottom wall or
the sidewall, whereas at the other side of the triangle, there is a catch of a near
V-shape, whereas in the upper parts of the walls, there are hinges placed in the corners
of the top cellular wall. The shaped-profile slat can be joined interchangeably with
the cellular side wall or with the cellular bottom wall by the catch, whereas the
guide can be placed in the other recess. The recesses situated at the ends of the
walls perpendicular to each other, are of the same shape, and they have in the cross-section
the shape of a trapezoid that one wall of which has the opening.
[0005] The advantage of a box of an overlay-type roller shutter, according to this invention,
is the possibility of opening the box in its two planes, making use of the same cellular
components, whereas the left cellular cover and/or the right cellular cover are the
same shape-product, that enables to lower production costs and/or to reduce the number
of components variety.
[0006] The cellular structure of a box of an overlay-type roller shutter increases its rigidity
and/or improves parameters of the thermal and/or acoustic insulation. The structure
of the box facilitates the usage of its steel reinforcement, and provides a simple
way of fastening the box to a doorhead using specific ties intended for the purpose.
Installation of the assembled box onto the window head is facilitated with the suitable
snap shape. A skew shape of the box's bottom profile facilitates drainage of water
from the inside of the roller shutter, whereas the smooth surface of outer walls of
the box makes it possible to glue it with Renolit.
[0007] The subject of this invention is shown in the drawings as an exemplary make; in the
Fig. 1, the cross-section of the assembled box of an overlay-type roller shutter is
shown; in the Fig. 2, the cross-section view of the box of an overlay-type roller
shutter, having the bottom cellular wall open, is shown; in the Fig. 3, the cross-section
view of the box of an overlay-type roller shutter, having the side cellular wall open,
is shown; in the Fig. 4, the axonometric view, from the box interior, of the box of
an overlay-type roller shutter, is shown; in the Fig. 5, the cross-section of the
shaped-profile slat, perpendicular to its lengthwise axis, is shown; in the Fig.6,
the axonometric view of the shaped-profile slat, is shown; and in the Fig. 7, the
joint of the cellular walls made using the shaped-profile slat, is shown.
[0008] As it is shown in the drawing, the box of an overlay-type roller shutter of a rectangular
prism form, consists of separably joined cellular walls
1, 2, 3, 4, of which two opposite side walls
1, 3, have a twin structure. Inside the inner corner
5, there is the shaped-profile slat
6 separably joined with the cellular wall
3 and/or with the cellular wall
4, the slat
6 in its cross-section perpendicular to its lengthwise axis
7 has the shape of a near isosceles right-angle triangle. One side
9 of the shaped-profile slat
6 has the T-shaped guide
8 placed inside the recess
10, whereas at the other side
11 of the triangle, there is a catch
12 of a near V-shape. In the upper parts of the walls
1, 3, there are hinges
13, 14, placed in the corners
15, 16, of the top cellular wall
2. The shaped-profile slat
6 can be joined also with the wall
3 by the catch
12, whereas the guide
8 can be placed in the recess
10'. The recesses
10 &
10', situated at the ends of the walls
3 & 4 perpendicular to each other, are of the same shape, having in a cross-section the
shape of a trapezoid, one wall
17 of which has the opening
18. The skew walls
19, 19', of the recesses
10 &
10', are inclined to the bases
20, 20', at an angle
αa equal to 45°, whereas the skew walls
21, 21', are inclined to the bases
20, 20', at an angle
β equal to 67.5°.
[0009] Upon inserting the shaped-profile slat
6 into the side wall
3, the bottom wall
4 can be opened, being by that operation an inspection lid, or upon inserting the shaped-profile
slat
6 into the bottom wall
4, the side wall
3 is an inspection lid.
1. The box of an overlay-type roller shutter, of a rectangular prism form, consisting
of the plastics cellular walls separably joined, two opposite side walls of the box
have a twin structure, characterised in that inside the inner corner (5), there is a shaped-profile slat (6) separably joined with the side cellular wall (3) or with the bottom cellular wall (4), the slat (6) in its cross-section perpendicular to its lengthwise axis (7) has the shape of a near isosceles right-angle triangle, where at the side (9) there is a T-shaped guide (8) placed inside the recess (10), or inside the recess (10'). whereas at the other side (11) of the triangle, there is a catch (12) of a near V-shape, whereas in the upper parts of the walls (1), (3), there are hinges (13), (14), placed in the corners (15), (16), of the top cellular wall (2).
2. The box according to the claim 1, characterised in that the shaped-profile slat (6) is joined with the wall (3), or with the wall (4), by the catch (12), whereas the guide (8) is inserted into the recess (10'), or the recess (10').
3. The box according to the claim 1 and/or 2, characterised in that the recesses (10) & (10'), situated at the ends of the walls (3) & (4) perpendicular each other, have in its cross-section the shape of a trapezoid, one
wall (17) of which has the opening (18), whereas the skew walls (19), (19'), are inclined to the bases (20), (20'), at an angle (α) equal to 45°, whereas the skew walls (21), (21'), are inclined to the bases (20), (20'), at an angle (β) equal to 67.5°.
