EP2290189A2

EP2290189A2 - Method of installation of a roller blind, in particular an external roller blind with guide rails, and roller blind assembly

Info

Publication number: EP2290189A2
Application number: EP20100173099
Authority: EP
Inventors: Boguslaw Kasinski; Andrzej Cieslak
Original assignee: Fakro PP Sp zoo
Current assignee: Fakro PP Sp zoo
Priority date: 2009-08-17
Filing date: 2010-08-17
Publication date: 2011-03-02
Also published as: PL217944B1; PL388823A1

Abstract

Each of the guide rails (3) has a lengthwise positive fastening unit (32, 34) for the subassemblies mounted in the guide rail, and the cassette (1) has end walls (11) on both sides, and each of the end walls has a fastening block (12), entering the main niche (31) of the guide rail (31) with a clearance enabling it to be freely moved, in addition in the upper part of the guide rail a snap fastener in the form of a catch (42), cooperating with the catch surface (13) in the fastening block (12) of the cassette end wall (11) is installed. The lengthwise positive fastening unit is a fastening channel (32), advantageously formed from two projections (33) with the angle-section contour, situated in the main niche (31), intended for fasteners, in particular nuts (81), fastening the subassemblies placed inside the guide rail (3) in this guide rail.

Description

The invention concerns a method of installation of a roller blind, in particular located on the outer side of a building, including mainly placing and mounting of a cassette with a rolled up blind at the window head. The invention concerns also a roller blind assembly with its guide rails. The solution according to the invention is applicable in the construction industry.
Roller blinds are known, for instance from PL 200 782 , that have a cassette or a box at the top, accommodating a roller with a rolled-up roller blind panel and a spring gear driving this rolling, having also side guide rails in the form of sections open towards the roller blind panel, where pins protruding from the roller blind panel move near the panel bottom edge. The box accommodating the rolled-up roller blind panel is situated over the top ends of the guide rails, and its dimensions exceed the external span of these guide rails. The design and the resulting method of the roller blind installation require first the cassette to be placed and fixed at the window head. It is inconvenient, as one must hold the cassette installed with raised hands at the same time fixing it in this position. Moreover it is dangerous if the roller blind is installed at windows on higher floors of a building.
The method of roller blind installation according to the invention, in particular of an external roller blind, with the main objective to place and fix a cassette with the rolled-up blind in the vicinity of the top part of a window, in particular on the outer side of a building, consists in that in the first assembly stage the roller blind guide rails are mounted at the window, whereas in the main stage of the assembly, the cassette is put into the guide rails near their bottom end, next the cassette is shifted up, where it is at least initially located with snap fixtures, restraining the cassette vertical movement. The roller blind guide rails during their normal operation are to maintain the path of the bottom roller blind edge movement during its unrolling and rolling, during the assembly they additionally serve for guiding the cassette installed. Advantageously the guide rails are mounted in the window opening in the building wall, secured to the window frame. The guide rails may also be placed outside the window opening, in its immediate vicinity, and in this case they are secured to the external surface of the building wall. They may also be placed in the window opening in the wall and secured to the side surfaces of this opening.
The cassette installed with the roller blind rolled up inside and with the gear for rolling and unrolling the blind has fastening blocks, which move in the roller blind guide rails. The main stage of assembly starts with putting the fastening blocks into the guide rails, next they are shifted to the top position, in which the cassette is located at the window head, inside or outside the window opening, in accordance with the guide rail position. In this top position the cassette is at least initially located with snap fasteners.
In the first variant of the installation method according to the invention, the snap fasteners, advantageously in the form of spring catches are mounted together with the guide rails as component parts of the guide rails. Advantageously, the snap fasteners, in the form of a catch, are located inside the guide rails. The catching surfaces in the cassette cooperating with these spring catches are situated in the cassette fastening blocks. Advantageously, the guiding block having a hollow space inside, has in its top wall a hole for the catch situated in the guide rail, and the catching surface of the block is the inner surface of its top wall in the vicinity of this hole.
In the second variant of the installation method according to the invention, the catch fasteners, advantageously elastic, are installed at the first stage of assembly on the outer side of the guide rails, in particular after mounting the guide rails in the window opening. The snap catches installed at the guide rails cooperate with catch surfaces in the cassette, which may be the surfaces of holes in the side or end walls of the cassette, or the external bottom surface of the cassette.
In the third variant of the installation method according to the invention, the snap fasteners, advantageously elastic, are connected to the cassette containing the roller blind. The snap fasteners are placed at the bottom of the guide rails, along with the cassette fastening blocks. Next, the cassette with its fastening blocks and the snap fasteners is shifted up, and having reached the cassette top position, the snap fasteners catch the top edges of the guide rails.
Catching the cassette containing the rolled-up blind in its top position with the snap fasteners has basically the aim of initially restraining the cassette. The task of this initial catching is to facilitate the final setting of the position of the cassette and to secure it in the position expected for normal use of the roller blind.
One of the variants of the final method of locating and securing the cassette in its top position consists in that the cassette, after its initial location with the snap fasteners, is supported with a pressure block put from the bottom into the guide rail, this block is placed in the guide rail directly under the cassette fastening block. Advantageously, in the guide rail, over the cassette fastening block, a bumper is placed, which restricts the fastening block and the whole cassette movement up, and the cassette fastening block is pushed to this bumper with the pressure block, while initial assembly clearances are eliminated. The pressure block is fastened in its final position in the guide rail, using the friction, and the pressure force of the frictional surfaces is obtained with at least one threaded fastener.
The second variant of the method of final setting and fastening of the cassette in its top position consists in that after the initial catching of the cassette with snap fasteners it is located in the top position with intermediate fasteners, advantageously with threaded fasteners. The intermediate fastener for locating the cassette may be a vertically situated bolt, screwed into a threaded hole in the stopper closing the guide rail from the top. These bolts may be situated also on the cassette section between the guide rails. The intermediate fastener for locating the cassette may also be a pin, fastened horizontally in the guide rail, going through a hole in the cassette fastening block or adjoining the cassette fastening block from the bottom.
A roller blind assembly with its guide rails being the object of the invention, has a cassette with a roller for rolling and unrolling the blind, and guide rails, maintaining the movement path of the roller blind bottom edge during its unrolling and rolling, and its main characteristics is that each guide rail, being an open section, with the main niche for guiding the pins of the bottom edge of the blind, has a lengthwise positive fastening unit for the subassemblies mounted in the guide rail, and the cassette has end walls on both sides, each with a fastening block, entering the main niche of the guide rail. The fastening blocks are seated in the guide rail with a clearance enabling free movement of the blocks and the complete cassette along. In the upper part of the guide rail a snap fastener is installed, in particular in the form of a catch cooperating with the catch surface in the cassette end wall fastening block.
The blind roller assembly with the guide rails is installed in the window opening in a building wall on the outer side of the window, and the guide rails are advantageously secured to the window frame. In the cassette with the roller blind there is a spring gear driving the rolling of the roller blind on the roller, and there are interlocks in the guide rail for stopping the roller blind at least in its fully unrolled position. They have the form of catching blocks, with seats for pins protruding to the sides from the roller blind at its bottom edge.
In the guide rail main niche on its entire length there is a lengthwise positive fastening unit, its main part having the form of a fastening channel, limited with two projections in the guide rail section having a profile of angle sections, protruding from one of the guide rail walls to the main niche. The walls of the angle section projections parallel to this guide rail wall are facing each other, and between them there is a slot, through which bolts fastening the sub-assemblies seated in the guide rail inside the guide rail go. These bolts cooperate with nuts, advantageously square ones, placed in the fastening channel. In addition, the lengthwise positive fastening unit has a single catching angle section shaped projection, with the grip wall advantageously facing the main niche of the guide rail. The subassemblies installed in the fastening channel and additionally with the catch projection, have grooves overlapping the grip wall of the catch projection.
The snap fastener for the cassette located in the upper part of the guide rail has the form of an elastically bent out catch, and at its base it is monolithically connected to the top stopper with the shape filling the main niche of the guide rail, fitted with a circumferential shoulder, resting against the guide rail face. The top stopper is secured to the guide rail with a bolt, having its nut placed in the fastening channel. The top stopper may also have a groove, slid over the grip wall of a single catch projection. Below the cassette fastening block, there is a pressure block in the guide rail, fastened to the guide rail with at least one bolt with the nut placed in the fastening channel, advantageously with a groove slid over the grip wall of the guide rail catch projection. A pressure tapered key protrudes upwards from the pressure block, inserted into a key-slot in the cassette fastening block. An analogous tapered key protruding up from the cassette fastening block is inserted into a key-slot in the top stopper. Both tapered keys along with the cooperating key-slots, after pushing closer and securing the pressure block locate the final position of the cassette fastening block, and thus they locate the cassette against the roller blind guide rails and against the window frame.
In the cassette end wall the fastening block has a limiter, situated so that together with the main surface of the end wall, they encompass the guide rail catch projection from both sides. The limiter prevents an excessive shift of the cassette during its assembly towards one of the guide rails, and thus against sliding of the fastening block out of the opposite guide rail. The fastening block of the cassette end wall has also an elastic bumper, adjoining the bottom of the guide rail main niche with its end. The task of the two bumper set, situated at both ends of the cassette in its end walls, is to centre the cassette installed, between the two guide rails.
Each of the catch blocks mounted in the guide rails has a socket, accessible from the roller blind side and from the bottom, for pins protruding from both sides of the roller blind at its bottom edge. The pins protruding from the roller blind are the endings of a rod, advantageously round, situated in the roll-up of the bottom edge of the roller blind. The catch block is fastened to the guide rail with a bolt with the nut placed in the fastening channel, and advantageously having a vertical groove, slid over the grip wall of the guide rail catch projection. The guide rail has a web facing its main niche, advantageously perpendicular to the pin protruding from the roller blind. The web maintains an appropriate distance between the blind roller pin and the guide rail wall, preventing rubbing the pin against this wall, thus protecting paint coatings of the guide rail from damage. The distance between the face of the web and the ridge of the catch block is slightly longer than the thickness of the pin, which enables it to be moved in the guide rail near the catch block.
There are two varieties of catch blocks: an end block, for catching the roller blind in its maximum unrolled position, and intermediate blocks, for catching partially unrolled roller blind. The end catch block is monolithically connected to the bottom stopper, having the shape filling the guide rail main niche. The bottom stopper has a circumferential shoulder, resting against the bottom face of the guide rail, which locates the position of the end catch block near the bottom end of the guide rail. Any number of intermediate catch blocks may be mounted in places of the guide rail selected by the user. In the intermediate catch block, the socket for the roller blind pin has a throat in its upper section. It prevents a self-release of the roller blind pin from the socket it is seated in. Under the throat, the entry to the socket is widened, which facilitates inserting the roller blind pin into the seat.
The function of setting the roller blind in its upper position is performed by the pressure blocks, which have a concave bearing surface for the roller blind pin. It is the operating position of the roller blind, whereas during assembly the roller blind adjoins the cassette surface with its rod. The pressure block has an elastic latch, which when bent enables the pin protruding from the blind to be moved down so that it is below the pressure block. It is performed after installing the cassette in its top position and setting it with the pressure block. The pressure block latch has an inclined surface at the bottom, which is an extension of the bearing surface for the roller blind pin, which guides the pin, during its movement upwards, onto the concave bearing surface of the pressure block.
The roller blind fabric, of limited light transmittance and weather proof plastic, has in its lower part a roll-up in which the rod ended with pins, shifted in the guide rails and located in the catch blocks, is seated. In its bottom edge the fabric has cut-outs exposing the rod locally, so that it can be used as a handle for shifting the roller blind.
In the threaded fastener subassemblies, consisting of a bolt and nut, used for fastening the subassemblies seated in the guide rail, the nuts are square, and the pressure block, the catch blocks (the end one and the intermediate one) and the top stopper have two limiters each, entering the slot of the fastening channel, adjoining the nut side surfaces from the top and from the bottom. The fastening node of the indicated subassemblies is characterised by that the pressure block, catch blocks and the top stopper have spacers, situated under the nut bearing surface. The spacer height slightly exceeds the thickness of the fastening channel wall, therefore there is a clearance under the nut, which facilitates inserting the subassemblies into the guide rail. The strength of the spacers is selected so that they are easily crushed when the bolt is screwed into the nut, therefore their presence does not diminish the efficiency of fastening of the subassemblies placed in the guide rail during normal operation of the roller blind.
An advantageous effect of the invention is easy and safe installation of the roller blind assembly on the outer side of a window, in particular installation of a cassette with the roller blind rolling gear, put on from the bottom and next shifted in the guide rails and caught with snap catches at the top. Also the support of the nuts with spacers facilitating inserting of the nuts into the fastening channel from the bottom is advantageous.
The object of the invention is shown in the embodiment examples in the picture, where the individual figures present:

Fig. 1 - The roller blind with guide rails - in the general, axonometric view.
Fig. 2 - The subassemblies fastening the cassette in the top position - in the axonometric view with the subassemblies taken apart.
Fig. 3 - The vertical cross-section through the cassette engaged in its top position.
Fig. 4 - A fragment of the cassette with the fastening block in the guide rail - the top view.
Fig. 5 - The bottom section of the guide rail with the catch blocks: the end one and the intermediate one - in the axonometric view.
Fig. 6 - The catch block with its fastening in the guide block - in the horizontal view.
Fig. 7 - The fastening of the catch block in the fastening channel - in the axonometric view with the fasteners taken apart.

The object of the invention, with regard to the installation method, is also presented in the embodiment example described without reference to a drawing. Example 1. The roller blind assembly with guide rails has the cassette 1 situated at the top, in which the roller blind 2 is rolled on a spring driven roller. The roller blind is made of a limited light transparency fabric. The assembly has also two guide rails 3, situated in parallel to the blind sides, being sections with the main niche 31 open to the roller blind side. The bottom edge of the roller blind fabric panel 2 is finished with a roll-up 21, in which a rod 22 is placed horizontally. The rod has pins 23 on its both ends, which enter the main niches 31 of each of the two guide rolls 3. In the roll-up 21 of the roller blind fabric there are cut-outs 24, locally exposing the rod 22, which enables it to be used as a handle for moving the roller blind 2 in its guide rails.
The cassette 1 has end walls 11 on both sides, and each of the end walls has a fastening block 12, which enters the main niche 31 of the guide rails, with a clearance enabling the fastening block to be moved freely along the guide rail. Each of the guide rails 3 in its main niche 31 has a lengthwise sektional fastening unit for the subassemblies mounted in the guide rail. This unit consists of a fastening channel 32, limited with two projections 33 in the guide rail section, having the contour of angle sections. Between the two projections 33 forming the fastening channel 32, there is a slot for bolts fastening the subassemblies seated inside the guide rail. The positive fastening unit has an additional single angle section shaped catching projection 34, connected to the guide rail wall, the grip wall 35 of which is facing the main niche 31 of the guide rail.
A top stopper 4 is put into the guide rail 3 from the top, its shape fills the main niche 31 of the guide rail, with a circumferential shoulder 41, resting against the face of the guide rail. The top stopper also has a groove (not shown in the drawing), slid over the grip wall 35 of the guide rail catch projection. The top stopper 4 in its lower part has an elastically bent out catch 42, for initial gripping of the cassette 1 in its top position. The catch 42 cooperates with the catch surface 13 of the rectangular hole 14 in the cassette fastening block 12. Beneath the cassette 1 fastening block 12, there is a pressure block 5 in the guide rail. A pressure tapered key 51 protrudes upwards from the pressure block 5, inserted into the key-slot 15 in the cassette fastening block. An analogous tapered key 16 protruding upwards from the cassette fastening block 12 is inserted into the key-slot 43 in the top stopper.
The cassette 1 fastening block 12 has a limiter 17, situated so that together with the main surface 18 of the end wall 11 they embrace the guide rail 3 catch projection 34. The fastening block 12 of the cassette end wall has also an elastic bumper 19, adjoining with its end the bottom of the guide rail main niche 31, not necessary within the fastening channel 32.
The pressure block 5 at the bottom has a concave bearing surface 52 for the pin 23 protruding from the roller blind rod 22 in its highest, operating position. However, during the assembly of the cassette in the guide rails, the roller blind adjoins with its rod 22 (the "m" position) the bottom concave surface of the cassette 1. The pressure block 5 has an elastic latch 53. After installing the cassette 1 in the guide rails 3 and supporting its fastening blocks 12 with pressure blocks 5, the roller blind rod 22 is pulled through, to the zone of the guide rail placed beneath the pressure block 5, bending the latch 53 with pins 24 of the roller blind rod. The latch 53 has an inclined surface 54 at the bottom, which is an extension of the concave bearing surface 52 for the roller blind pin 23. This inclination guides the pin 23 during its movement up, onto the bearing surface 52.
Below the pressure block 5, catch blocks are mounted in the guide rails 3, which have two varieties, i.e.: the end catch block 6 and the intermediate catch block 7; for locating the bottom edge of the roller blind 2. The end catch block 6 has a socket 61, open from the roller blind side and from the bottom, into which the pin 23 of the rod 22 of the roller blind 2 is inserted when it is unrolled to the maximum. The end catch block 6 is monolithically connected to the bottom stopper 62, with a shape filling the main niche of the guide rail, with a circumferential shoulder 63 resting against the bottom face of the guide rail 3.
The intermediate catch block 7 has a socket 71, open from the roller blind side and from the bottom, to which the pin 23 of the rod 22 of the roller blind is inserted. The socket 71 has a narrowed throat 72 at its upper section, and below the throat the entrance to the socket widens. There can be any number of the intermediate catch blocks 7, to suit the user's needs, and they are situated in places chosen by the user, in pairs at the same height, in both guide rails.
The guide rail 3 has two webs 36, facing its main niche 31, perpendicular to the pin 23 ending the roller blind rod. The distance between the face of the web 36 and the ridge 73 of the intermediate catch block 7 is slightly longer than the thickness of the pin 23, which enables it to be moved in the guide rail near the catch block. Identical dimensions and clearances concern also the end catch block.
Fastening of subassemblies seated in the guide rail is presented in the example of connection of the intermediate catch block 7 to the guide rail 3 (drawing - fig. 7). The intermediate catch block 7 has a horizontal port, through which a hexagon socket cap bolt 8 goes. There is a square nut 81 on the bolt, which shifts in the fastening channel 32 when the intermediate catch block 7 shifts in the main niche of the guide rail 3. Over and under the nut 81 there are two limiters 82, protruding from the intermediate catch block 7, entering the fastening channel slot between the two angle section shaped projections 33. The limiters 82 locate the position of the nut 81 (preventing uncontrolled turn) before it is inserted into the fastening channel 32. Under the bearing surface of the nut 81 there are four spacers 83 protruding from the intermediate catch block 7, with their height exceeding the thickness of the projection 33 walls. The task of the spacers 83 is to maintain the distance of the nut 81 to the intermediate catch block 7, and thus to maintain the assembly clearance, before they are slid into the guide rail 3. When the bolt 8 is tightened with the nut 81, the spacers 83 are crushed and the nut 81 starts to cooperate with the walls of angle section shaped projections 33, maintaining the location of the intermediate catch block 7 with friction forces.
The intermediate catch block 7 has also a vertical groove 74, slid over the grip wall 35 of the catch projection 34 of the guide rail (drawing - fig. 6), this positive connection, in cooperation with the bolt 8 and nut 81, ensures stable mounting of the intermediate catch block 7 in the guide rail. Identically, with the bolt 8 and the square nut, with limiters and spacers, as well as with the groove slid over the grip wall of the catch projection 34, other subassemblies are mounted in the guide rail, such as: the top stopper 4, pressure block 5 and the end catch block 6.
The guide rails 3 are secured to the window frame with screws 37, and holes in the guide rail front wall, enabling access to the screws with a tool, are covered with plugs 38 of plastic or rubber, seated with negative allowance in these holes.
Example 2. The installation, with the method according to the invention, of a roller blind with guide rails, presented in the first embodiment example, starts with mounting of top stoppers 4 in the two guide rails 3, the right hand one and the left hand one, with: the bolt and nut and the elastically bent out catch 42 installed in the stoppers. The top stoppers 4 are put into the guide rails from the top, by sliding the nut into the fastening channel and sliding the groove of the top stopper onto the grip wall 35 of the catch projection 34. After resting the circumferential shoulder 41 of the top stopper 4 against the face of the guide rail 3, the bolt is screwed into the nut, crushing the spacers. The guide rails 3 prepared in this way - the right one and the left one - each with the top stopper 4 and the elastically bent out catch 42 placed under the stopper, are secured with screws 37 to the window frame, placing the guide rails facing each other with their main niches 31. Then, the holes in the guide rail wall, which enable the screws 37 to be accessed with a tool, are closed by pushing the plugs 38 into these holes. The main stage of the installation starts with inserting the cassette 1, with the fully rolled up roller blind 2, from the bottom to the both guide rails 3. When putting the cassette 1 into the guide rails 3, the fastening blocks 12 of the cassette end walls 11, and then the pins 23 of the roller blind rod 22, are put into the main niches 31 in the guide rails. Next, using the guide rails 3, the cassette 1 is shifted up, until the catches 42 catch the grip surfaces 13 of the rectangular holes in the fastening block of the cassette. After initial catching of the cassette 1, the pressure block 5 is put into each guide rail 3 from the bottom - respectively the right one and the left one - and is pushed closer to the cassette fastening block 12. Next, by pressing the pressure block 5 to the fastening block 12, this block is raised, eliminating clearances between the pressure tapered key 51 and the key-slot 15 in the fastening block 12, as well as between the tapered key 16 of the fastening block and the key-slot 43 in the top stopper.
After eliminating clearances, the bolt 8 seated in the pressure block is screwed into the nut, crushing the spacers and pushing the bearing surface of the nut to the walls of the fastening channel, as a result friction holding the cassette 1 in its top intended position is obtained. It is not necessary to mount the pressure blocks 5 in their intended positions at the same time, therefore their installation can be performed by one person, installing the blocks subsequently in both guide rails. After mounting the both pressure blocks 5 the roller blind rod 22 is pulled down, moving the rod pins 23 under the pressure block 5, while bending the latch 53. As a result of the tension of the spring rolling up the blind into the cassette 1, the pins 23 automatically place themselves on the concave bearing surfaces 52 at the bottom of pressure blocks.
In the final stage of installation, intermediate catch blocks 7 are put into the guide rails 3, respectively the right ones and the left ones, their number to suit the needs of the user, installing them in pairs at selected heights. Next the end catch blocks 6 are put in, the right one and the left one - by pushing the circumferential shoulders 63 of the bottom stoppers 62 to the faces of guide rail 3 sections. The catch blocks 6,7 are located in the guide rail 3 like other subassemblies, by screwing the bolt 8 seated in the catch block into the nut 81, crushing the spacers 83 and pressing the bearing surface of the nut 81 to the fastening channel 32 walls. The position of the intermediate catch blocks 7 may be altered during operation of the roller blind, by loosening the nut 81, shifting the intermediate catch block 7 into a new place and tightening the bolt and nut joint.
Example 3. The installation of the roller blind with guide rails, in the next embodiment example of the method according to the invention, starts with securing two guide rails to the window frame with screws. Next the cassette with the roller blind is put into the guide rails from the bottom, by putting the fastening blocks of the cassette, and then the roller blind pins into the main niches of the both guide rails. Together with the cassette fastening block, a snap fastener, installed at the end wall of the cassette is put into the main niche of each guide rail. The snap fastener's shape is similar to the "V" letter, with the arms ended at the top with catches facing outwards. In the free state the top ends of the snap fastener arms are spread wider than the inner clearance of the guide rail main niche, so when the snap fastener is inserted into the guide rail, its arms should be bent. After shifting the cassette into its top position, the snap fastener catches protrude over the guide rail top edges, expand and catch the guide rail edges with their catches directed outwards. Next the cassette is secured in its top position with bolts, which are put into holes in the guide rails immediately under the cassette fastening blocks. During this activity, the roller blind rod pin moves slightly down, until it is under the bolt. Further the intermediate and end catch blocks are installed in the guide rails, identically as in the second embodiment example.

Claims

Method of roller blind installation, in particular of an external roller blind, with the main object of placing and securing the cassette with the rolled up blind and the rolling gear near the top part of a window, in particular at the window head, on the outer side of a building, in addition the installation includes mounting advantageously in the window opening in the building wall and securing, in particular to the window frame, of guide rails for maintaining the path of the roller blind bottom edge movement during its rolling and unrolling, characterized in that in the first stage of installation the guide rails (3) are seated, which also serve for guiding the cassette (1) with the rolled up blind (2) during its installation, while in the main stage of installation the cassette (1) is put into the guide rails (3) near their bottom end, and then the cassette is shifted up in the guide rails (3), where the cassette (1) is at least initially located with snap fasteners restricting the vertical movement of the cassette.
Installation method as claimed in claim 1, characterized in that the snap fasteners, advantageously elastic ones, in particular in the form of a catch (42), cooperating with catch surfaces in the cassette (1), are mounted together with the guide rails (3) as their component parts, placing them inside the guide rails (3).
Installation method as claimed in claim 1 characterized in that the catch fasteners, advantageously elastic ones, cooperating with the catch surfaces in the cassette (1), are installed at the first stage of installation on the outer side of the guide rails (3), in particular after mounting the guide rails (3) in the window opening.
Installation method as claimed in claim 1 characterized in that the snap fasteners, advantageously elastic ones, are connected to the cassette (1) and shifted along with the cassette (1) in the guide rails (3), and having reached the cassette (1) top position the snap fasteners catch the guide rail (3) top edges.
Installation method as claimed in claim 1, or 2, or 3, or 4, characterized in that after the cassette (1) has been initially caught with the snap fasteners, it is located in the top position by being supported with a pressure block, which is secured in the guide rail (3) with at least one threaded fastener.
Roller blind assembly with its guide rails, in particular for covering a window opening in a building wall, on the outer side of the window, advantageously installed in the immediate vicinity of the window frame, including the one secured to the window frame, containing a roller blind in particular of limited light transparency fabric, a cassette with a roller for rolling and unrolling and the drive gear, also having the guide rails maintaining the path of the roller blind bottom edge movement during its rolling and unrolling, where each of the guide rails is an open section, with the main niche for guiding pins protruding sideways from the roller blind at its bottom edge, and the roller blind assembly advantageously has also interlocks locating the roller blind at least in its fully unrolled position, characterized in that each of the guide rails (3) has a lengthwise positive fastening unit (32, 34) for the subassemblies mounted in the guide rail, and the cassette (1) has end walls (11) on both sides, and each of the end walls has a fastening block (12), entering the main niche (31) of the guide rail (31) with a clearance enabling it to be freely moved, in addition in the upper part of the guide rail a snap fastener in the form of a catch (42), cooperating with the catch surface (13) in the fastening block (12) of the cassette end wall (11) is installed.
Roller blind assembly with its guide rails as claimed in claim 6, characterized in that the lengthwise positive fastening unit is a fastening channel (32), advantageously formed from two projections (33) with the angle-section contour, situated in the main niche (31), intended for fasteners, in particular nuts (81), fastening the subassemblies placed inside the guide rail (3) in this guide rail.
Roller blind assembly with its guide rails as claimed in claim 7, characterized in that the lengthwise positive fastening unit has additionally a catching angle-shaped projection (34), the grip wall (35) of which is advantageously facing the main niche (31) of the guide rail (3).
Roller blind assembly with its guide rails as claimed in claim 6 or 7 or 8, characterized in that the snap fastener has the form of an elastically bent out catch (42), and at its base it is monolithically connected to the top stopper (4), secured to the guide rail with a bolt (8), having a nut placed in the fastening channel, in addition advantageously the top stopper has a groove, slid over the grip wall (35) of the fastening unit (34).
Roller blind assembly with its guide rails as claimed in claim 6 or 7 or 8 or 9, characterized in that in the guide rail (3), below the cassette (1) fastening block (12), it has a pressure block (5), advantageously with a groove slid over the grip wall of the guide rail catch projection, fastened to the guide rail (3) with at least one bolt (8), with a nut placed in the fastening channel (32), in addition, advantageously from the pressure block (5) a pressure tapered key (51) protrudes upwards, inserted into a key-slot (15) in the cassette (1) fastening block (12), and an analogous tapered key (16) protruding upwards from the cassette fastening block (12) is inserted into a key-slot (43) in the top stopper (4).
Roller blind assembly with its guide rails as claimed in claim 7, or 8, or 9, or 10 characterized in that in the cassette (1) end wall (11), the fastening block (12) has a limiter (17), situated so that along with the main surface (18) of the end wall (11), they encompass the catch projection (34) of the guide rail, and advantageously, the fastening block (12) of the cassette (1) end wall (11) has an elastic bumper (19), adjoining with its end the bottom of the guide rail (3) main niche (31).
Roller blind assembly with its guide rails 6, or 7, or 8, or 9, or 10, or 11 characterized in that in the guide rails (3) it has catch blocks (6, 7), each of them has a socket (61, 71) for the pin (23) protruding from the roller blind (2) at its bottom edge, accessible from the roller blind side and from the bottom, and also advantageously it has a groove (74), slid over the grip wall (35) of the catch projection (34) of the guide rail (3), and it is fastened to the guide rail with a bolt (8), having a nut (81) placed in the fastening channel (32), in addition the guide rail (3) has a web (36) facing the main niche (31), advantageously perpendicular to the pin (23) protruding from the roller blind (2), and the distance between the web (36) face and the catch block (73) ridge is slightly longer than the thickness of this pin (23).
Roller blind assembly with its guide rails as claimed in claim 12 characterized in that in the intermediate catch block (7) the socket has a throat (72) in its upper section.
Roller blind assembly with its guide rails as claimed in claim 12 characterized in that the end catch block (6) is connected to the bottom stopper (62).
Roller blind assembly with its guide rails as claimed in claim 11, or 12, or 13, or 14, characterized in that the pressure block (5) has an elastic latch (53), which when bent allows the pin (23) protruding from the roller blind to be moved down, in addition the pressure block (5) has a concave bearing surface at the bottom (52) for the pin (23) of the roller blind, in addition advantageously the latch (53) has at the bottom an inclined surface (54) in the free state of the latch being an extension of the bearing surface (52) for the roller blind pin (23).
Roller blind assembly with its guide rails as claimed in claim 12 or 13, or 14, or 15, characterized in that the pins (23) protruding from both sides of the roller blind (2) are the endings of the rod (22), advantageously a round one situated in the roll-up (21) of the bottom edge or the roller blind, and the roller blind fabric (2) in its bottom edge has cut-outs (24) exposing the rod (22) situated in its roll-up, for the rod to be used as a handle.
Roller blind assembly with its guide rails as claimed in claim 6 or 7, or 8, or 9, or 10, or 11, or 12, or 13, or 14, or 15, characterized in that the nuts (81) are square, and the pressure block (5), catch blocks (6, 7) and the top stopper (4) have two limiters each (82) entering the slot of the fastening channel (32), adjoining the side surfaces of the nuts on both sides, and under the bearing surface of the nut (81) there are advantageously spacers (83) with the height exceeding the thickness of the fastening channel (32) wall, in addition the spacer strength is selected so that they are crushed when the bolt (8) is screwed into the nut (41).