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(11) | EP 0 119 369 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Metallic blind formed by assemblable components |
| (57) The aluminium extrudet sections and the mutual connecting means both fixed or mobile
as per the invention, allow an easy assembling of a blind with tilting slats, inserting
it in the span of a common standard aluminium frame for glass windows or glass doors
or glass skylights, without the use of screws rivets and other common connecting means. The perimetral section 1 of the blinds are all exactly alike and remain locked in the housing formed by the battens (15a) of the frame (15) of the glass door, without possibility of being removed, owing to the pressure exerted by the pins of the coupling boxes 3 when inserted in the holes 12b of the cog-wheel of the rack boxes 11, due to the matching of the battens 1d, against the battens 15a of the frame 15 itself forming the housing for the glass. The connecting means, that is the coupling boxes and the rack boxes, are made of extruded plastic. The system can, however, be built with any materials other than aluminium or plastics. The system does not depend on the dimension of its components, however, in a particular execution suitable to the standard aluminium frames for glass doors or glass windows the dimensions of the sections and of the slats are (Continuation next page) |
[0001] arranged in such a way so that the only dimension requiring the cutting of the sections be that which regards the inner width of the frame 15.
[0002] The adjustability to the internal height of the frame 15 itself can be, in fact, obtained by applying the compensating section. The invention also provides for the application of slats in which the interruption of the thermic conduction is obtained.
[0003] The object of the invention is a metallic blind, in preference aluminium alloy blind to be mounted in the span of the metallic frame of a glass door or a glass window or a skylight, formed by an assortment of assemblable metallic extruded sections and connecting devices and having slats adjustable in a preferred and,if necessary,lockable position.
[0004] There are two groups of parts wich compose a metallic blind with slats adjustable in a preferred position. A first group includes the metallic extruded sections and related accessories necessary to build both the metallic frame to be fixed in the opening of the masonery and the metallic frames forming the mobile wing of the blind, to be hinged to the aforesaid fixed frame or to be durably fixed to itself.
[0005] A second group of elements includes the slats and all those other parts wich are necessaries to form the blind and to adjuste and to lock the slats in the preferred position.
[0006] Actually to mount blinds of the aforesaid type in a mobile metallic frame, is necessary to unhang the frame itself and to insert in itself the blind using connecting means as screws, weldinds and so on.
[0007] These operationsrequire persons skilled in the art, various equipements and waste of time; consequently, the cost of the metallic blind are high and their use is restricted.
[0008] An aim of the present invention is to supply a set of metallic extruded sections and connecting and assembling means of the aforesaid sections by wich it be possible to rapidly mount a blind furnished of slats to be locked in a preferred position and suitable to be inserted in the slots where are inserted the glasses of a wingframe of a glass window, or of a glass door, or skylight, without employing any further connecting means besides the ones as the before mentioned
[0009] An other aim of the present invention is to furnish a blind with tilting slats, to be mounted and inserted by the user itself, in the aluminium frame of a glass window or a glass door of the standard type.
[0010] A further aim of the present invention is to furnish both to the manufacturers concerned and the users a set of aluminium extruded sections and of connecting means and special devices wich allow the manufacturing of blinds of whatever dimensions, only by cutting the extruded sections in the proper lenght.
[0011] A furter aim of the present invention is to furnish an aluminium blind whose assembling technology is such as to be included as a main component of the design of the blind itself. Still a further aim of the present invention is to furnish a device to connect in series with other equal devices, to rotate the slats of a blind from 0° to 180°, suitable to be applied to windows or door frames of any height and capable to block the slats in the closed position by adding suitable means.
[0012] A further important aim of the present invention is to furnish assemblable blinds with aluminium slats of the type in which there is an interruption of the thermic conduction. Finally, a further aim of the present invention is to furnish a set of aluminium extruded sections and fittings made of plastic, of standard measures,to insert in the metallic frame of glass windows or glass doors or skylights of any size. The aforesaid aims and other more, may be obtained with the blind object of the invention, which is described in details below with reference to the drawings which illustrate only one specific embodiment, in which:
Fig. 1, is an exploded view of the blind in accordance with the invention;
Fig. 2, is an external view of the blind;
Fig. 3, is an external view of the blind with slats in the open position;
Fig. 4, is the cross section XX of Fig. 2;
Fig. 5, is the cross section YY of Fig. 2;
Fig. 6, is the cross section X'X" of Fig. 3;
Fig. 7, is the cross section Y'Y' of Fig. 3;
Fig. 8, is the perimetral extruded section;
Fig. 9, are the fixed upper and lower slats;
Fig,10, is the compensating extruded section;
Fig.ll, are slats with coupling devices;
Fig. 12, is an exploded view of the coupling device 3;
Fig.13, is the insertion of the rack devices;
Fig.14, is an exploded view of the rack device;
Fig.15, is an exploded view of the slat with interruptions of the thermic conduction.
[0013] The blind has been studied so as to be inserted in the normal frames of glass windows or glass doors made by extruded aluminium sections having, for example, thickness from 40 to 50 mm. and marketed as mass products under different names, but it can be adapted also to frames of different thickness. It is composed by the following parts;
1) a set of aluminium alloy and plastic rigid material extruded sections;
2) a set of extruded plastic material gaskets;
3) a set of fitting made of pressed plastic materials. The first set is composed in detail by:
- the perimetral extruded sections 1 with a longitudinal opening 1e in whose interior la there are two longitudinal spacers 1b; the section is also furnished of one longitudinal slot lc for the insertion of light and wind seal gasket 10 and, on the esternal surface, of two longitudinal spacers ld.
- the slats 2 having one longitudinal hollow 2a and along one longitudinal edge forming slot 2b, the hollow 2a to contain, at both ends,the coupling devices 3 containing the pins 4 to engage in the hole 12b of the rack devices, the slot 2b to contain the gasket of extruded plastic material as light and wind seal in between slats.
[0014] The slats, in the preferred embodiment, have a pitch of 60 mm.
- The sections of the two fixed terminal slats, that is the superior 6 and inferior 7, to be spring inserted in the longitudinal hopening 1e of the respectively superior and inferior orizontal perimetral sections: the section 7 forms a 7a slot to insert gasket 5 for light and wind sealing.
- A slat of type with interruption of the thermic conduction, formed by two aluminium semi-slats 8a and 8b and an intermediate plastic section 8c, which have a pressure lock connection through insertion of the longitudinal fin 8b1 in the slot 8cl of the plastic section and of the longitudinal fin 8al in the slot 8c2 of the same section 8c section 8b forms also a slot 8b2 in which the gasket section 5 is inserted.
[0015] In the preferred embodiment, these slats have a 60 mm. pitch.
- A compensating section 9, of 10 mm. thickess, to be inserted in the two superior and inferior orizontal sides of the window frame before applying the perimetral section 1, to allow, in the preferred embodiment,the recovery of the eventual centri- metres of the height of the frame which are not covered by the slats wich can only cover window frames having an hight multiple of 60 mm.
[0016] The second set of elements is formed by the gasket 10 made of the aforesaid extruded material, with rigid 10a base and flexible 10b fin to be inserted in the 1c slot of the perimetral section 1, to be mounted vertically.
[0018] The coexstruded gasket section 5, is provided with a rigid 5b base and a flexible 5a fin to be also inserted in the longitudinal slot 8b2 of the slats having thermic interruptions. The third set is formed by plastic auxiliary components obtained with a pressing process, that is by:
- Rack devices 11 to cause the rotation of slats 2 throug the pins 4, each made of two plates 11a perfectly identical and coupling each other through simmetrical spring joints. Each rack contains one sector 12 of a cog-wheel and a rack bar 13 placed respectively in their proper housing 11al and 11a2, the cog-wheel 12 made one with the mub 12a which itself, in its interior, is axially piercede in such a may as to form a hole 12b, frustum of cone shaped,
[0019] The rack is completed at one end by an head-shaped appendix 13a and at the other end by a slot 13b of the same shape of the said appendix,in such a way it be possible to connect in series several rack devices to form a single long rack. Coupling devices 3 for each mobile slat, respectively symmetric so as to be inserted on both ends of the slat itself, which are both also formed by two equal parts, 3a and 3b coupled by pegs 3b3 to insert in the holes 3a3 of the part 3, each device containing a tapered pin reactioned by a spring 14.
[0020] Spring 14 has the function to push the pin through the hole 3cl outwards from the device, to insert it in the frustum of cone shaped hole 12b in the mub of the cog-wheel 12.
[0021] Each coupling device 3 is one with a stop-plate 3c which has the function to plug the end of the slat and, when the said slat i.s in a vertical that is closed position, to compress the gasket 10 towards the vertical perimetral metallic section 1 which contains it.
[0022] The coupling devices which are inserted in the 2a hollow of the normal slats, may also be inserted in the 8c3 hollow of the intermediate plastic section of the slats 8 after removing the edge 3al of the plate 3a and 3b1 of the plate 3b.
[0023] The plates 3a and 3b are also provided with clefts 3a2 and 3b2 to make easier the support of spring 14.
[0024] Closing plugs respectively at the right and left end of the fixed terminal slats and blocking plugs applied to the ends of the vertical perimetral metallic section to block the
[0025] rack boxes and avoid sliding of the rack when this is in use. The assemblings of the elements composing the blind is achieved first by inserting the four perimetral sections which are all the same, after having cut them to measure with a cut orthogonal to the longitudinal axis, between slide battens 15a of section 15 which forms the frame of the glass-window or glass-door so that spacers Id meet with the said battens 15a producing the fitting of perimetral sections 1 in the frame 15 itself.
[0026] For this purpose,first,the two orizontal superior and inferior elements should be mounted so as to fill the whole width of the frame span and, successively, the two vertical elements in which have already been inserted the rack devices 11 mutually connected by inserting end 13a in the slot 13b of the contiguons bars and, at the ends, the bloking plugs of the same rack devices.
[0027] The vertical perimetral sections are fixed to the frame 15 without the use of fixing screws or rivets because of the pressure exerted by the spring pins 4 mounted in the coupling devices 3 inserted in the hollow 2a of each end of the directional slats 2 pressure that is exerted when the same pins have been inserted in the holes 12b inside the cog-wheel mub 12 mounted in each rack devices.
[0028] The orizontai perimetral sections remains, also, connected to the frame of the window frame without the use of fixing screws or rivets, because of the matching against the cross area of the said vertical sections ends.
[0029] The slats 2 are applied after having mounted the terminal superior and inferior fixed slats respectively 6 and 7 in the longitudinal opening le of the perimetral slat 1 and after having applied the blocking plugs to both ends.
[0030] The rack devices 11 allow to obtain any lenght of rack and, therefore, are adjustable to window frame that may have different heights: in the preferred embodiment, the rack bars 13 also have a lenght of 60mm.
[0031] The rack device can be operated through a knob 16 to be inserted in the threaded hole 13c of the rach bar, so as to rotate the cog-wheel 12 sector which forces the slat jointed to it throug the conical pins 4, to rotate around its own axis.
[0032] Because of the easy assembling of a set of rack devices, it is sufficient to operate one of the elements which compose the set itself, to action the corresponding cog-wheel of all the other racks and therefore their respective slats. The invention may differ from the described execution only because of the variation in the dimension of the elements which compose the blind and in the use of different materials. Infact, nothing witholds from building the blind with materials other than aluminium or plastic, for example, stainless steel, if one wants to build burglar-proof blinds or blinds for any other applications.
[0033] In the favourite version, the dimensions of the sections are exactly rounded up to the centimetre; the dimensions of sections 1 are mm. 20x40, while those a,b,c, of the slats are respectively mm. 72, 58, 44.
[0034] The metallic slats 2 can be substituted by plates made of glass i.e. armoured glass slats 2/1,or slats mabe by other materials as, for example, wood or stratified plastic rolled sections.
[0035] In this embodiment, the coupling device of Fig. 11 is modified as in 3/1 so as to include one end of the slat 2/1.
[0036] The knob 16, in its turn, can be substituted by a device 17 as illustrated in Fig. 14, operated by means of a handle 17a, lockable in the preferred position through the small peg 17b, that operates the rack bar 17c to apply to the rack 13, by inserting the pin 17d of square cross-section in the hole 13c: so it is impossible to rotate the slat from outside.
a) a box 11 formed by two plates 11a exactly alike;
b) a cog-wheel sector 12 complete of a coaxial hole for the insertion of a locking pin 4 of the coupling device 3;
c) a rack bar 13 for the rotating of the said cog-wheel,the same bar being complete at one end of an appendix 13a and at the other and of a slot 13b of the same shape, to allow a reciprocal connection of more rack-bars.