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(11) | EP 2 177 458 A2 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Heat-insulatiang type of aluminium box |
| (57) It is a type of caisson box of rolling shutters of aluminium window and door frames,
accompanied by a heat-insulating chamber. On the one hand, the box is constructed
by 4 alumni sections (1)(2)(3)(12) with their ends joined by using two lids (5)(5α)
that are supported by 4 screws each (8)(8α). The box cooperates with the added heat-insulating
chamber, which is created by heat-insulating sections (13) (13α), polyamide (6)(6α)
and by use of the lateral sealing part of heat-insulation (14) by polyamide (6β).
The heat-insulating chamber can be added to any type or size of box thus transforming
it from regular into a heat-insulating one.
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[0001] The invention refers to a caisson type of rolling shutters of window and door frames, including a heat-insulating chamber which is constructed by aluminum sections able to be assembled.
[0002] Till now, regular or heat-insulating aluminum caisson boxes of rolling shutters have been widely used, which make use of polyamide to stop thermal loss. These are constructed using four aluminum sections for the regular one and five for the heat-insulating one, especially for every different dimension of the section and require the relevant lateral part (lid) to be considered complete. Besides, for a single box of specific dimensions it is necessary to use different sections and lateral parts, always according to whether the box is a regular or a heat-insulating one.
[0003] Nowadays, in Greece fifteen kinds of boxes of different dimensions are being used, which means that their construction requires the production of 60 different aluminum sections for the regular boxes and of seventy five for the heat-insulating ones. At the same time, 30 different kinds of lids are necessary for every category of boxes, meaning 60 different lids in total. This kind of necessity entails not only an extremely high cost of production, but also an extremely high cost of maintaining large quantities of stock both for the producer, as well as for the final constructor.
[0004] In order to assemble these boxes we need screws or bolts, the use of which impedes the accessibility to the internal space of the box with the aim of restoring any damage or malfunction of the rolling shutter.
[0005] Finally, it is widely known that the available on the market boxes do not offer the possibility of transforming a regular box into a heat-insulating one as it requires the production of different aluminum sections and different lateral parts- lids. In my type of box, on the other hand, in order to create a heat-insulating box it is possible to use the alumni sections as well as the two sealing parts (lids) of the equivalent regular box of the same dimensions.
[0006] Moreover, only the three heat-insulating sections are considered necessary, which are applicable to the available on the market boxes of any dimensions as well as to those that are about to be circulated in the future.
[0007] This entails a drastic reduction of the production cost of the boxes, since in order to construct a regular and an equivalent heat-insulating one of the same dimensions no sealing parts (lids) have to be constructed. On the contrary, the ones already available on the market, which are designed for the common boxes, can be used with the addition of a heat- insulating chamber.
[0008] At the same time the storing cost is reduced in all the stages of production, construction and marketing of either regular or heat-insulating type of boxes. This is because in this type of invention only two heat-insulating sections plus an additional extended part are required for the transformation of any regular box into a heat-insulating one. Moreover, the cost of the lateral sealing parts of the heat-insulating remains the same as for the regular one, since the ones available on the market have a larger coverage surface, hence higher cost per piece.
[0009] Besides, by this system any already installed regular box can be simply transformed into a heat-insulating one. In the case of the already circulated boxes, it is required to totally reject the installed regular box and replace it with a new, heat-insulating one.
[0010] By the addition of the heat-insulating chamber a drastic reduction of thermal loss is being achieved. In the box of my own invention there is a full possibility of intervention, by removing the alumni section which is on the side of the box that is inside the room, as well as by removing the special section that allows the creation of a heat- insulating chamber, as far as the heat-insulating box is concerned.
[0011] Finally, most of the assemblage part is based on the mechanical application of its constituent parts, reducing at the minimum the use of screws.
[0012] In this kind of invention a type of heat-insulating box is being revealed, where the construction of a regular box of any dimensions requires four alumni sections and two lateral sections made of cast aluminum (lids). Besides, the transformation of a regular box into a heat-insulating one within this system requires only three new polyamide sections that are common for boxes of any possible dimensions and that create a heat-insulating chamber, which can be added to any existing regular box. As lateral sealing parts (lids, the same of any regular box of any dimensions can be used. An actual application is given according to the attached sketches:
In figure 1 there is a lateral view of the vertical lateral alumni section of the box.
In figure 2 there is a lateral view of the lid belonging to the box.
In figure 3 we can see the bottom horizontal section of the box.
In figure 4 we can see the upper horizontal section of the box.
In figure 5 we can see the first vertical heat-insulating section made of polyamide.
In figure 6 we can see the second vertical heat-insulating section made of polyamide.
In figure 7 we can see the horizontal heat-insulating section made of polyamide.
In figure 8 we can see the rubber-balloon.
In figure 9 we can see the elastic wick.
In figure 10 we can see the external lid of the heat-insulating chamber.
In figure 11 we can see the dividing alumni section in lateral view, accompanied by handles and supportive bolts on the main surface of the box.
In figure 12 there is a front and vertical view of the collaboration of the box with the heat-insulating chamber as a single system.
In figure 13 we can see t in perspective the dividing alumni section accompanied by its components.
In figure 14 we can see the box and the heat-insulating chamber designed in perspective.
[0013] According to the sketches, the heat-insulating type of box is achieved by the construction of a regular box making use of four aluminum sections (1)(2) (3) (12) figures 1,3,-4,10 equivalently, which can be assembled together by a system of mechanical application. The formed chamber is then sealed side-by-side by two lateral components - lids: (5)right,(5a)left, figure 2, which are made of cast aluminum and supported by four screws (8)(8a) equivalently. The construction of the additional heat-insulating chamber requires only the addition of the dividing section (7), upon which are placed: the rubber balloon in the internal side (9)(9a) and the plastic handles (10) on the external side, supported by bolts (8b) on the section which also bears an elastic wick (11) and bolts (8), the two extra heat-insulating sections (13)(13a) of polyamide (6)(6a), figures 5 and 6 and the additional component of lateral sealing of heat-insulation (14) of polyamide (6b).
1. A heat-insulating type of alumni box that is used for the caisson of the rolling shutters
of alumni window and door frames and that is characteristically composed of a regular
box, made of four alumni sections (1) (2) (3) (12) which are systematically assembled
together by mechanical application. The resulting chamber is sealed side-by-side by
two lateral parts-lids (5) right (5a) left, made of cast aluminum and which are supported
on each side by flour screws (8) (8a) equivalently. Upon sections (1)(3) there are
cleaning little brushes (4)(4a).. The construction of the additional heat-insulating
chamber requires only the addition of the dividing section (7) upon which are placed:
the rubber balloon (9)(9a) in the internal side and the plastic handles (10) on the
external part, the last ones being supported by bolts (8b) upon the section that also
bears an elastic wick (11) and bolts (8), as well as the addition of two heat-insulating
sections (13)(13a) of polyamide (6)(6a) and the supplementary part of sealing side-by-side
heat-insulation (14), also of polyamide (6b).
2. A type of heat-insulating aluminum box, as in claim 1 and that is characterized by the fact that by use of the heat-insulating chambers (13)(13a) and section (14) accompanied
by the use of polyamide (6)(6a)(6b) we create a heat-insulating chamber, which can
be added to any type or size of a box and allows its transformation from a regular
one to a heat-insulating one.