DE2744451A1 - Strip assembled door or window shutter - has strips of paired lamellae overlapping adjacent strips when closed - Google Patents

Abstract

The closing unit for windows, doorways or similar openings, has individual parallel strip-shaped elements displaceable up and down along guide elements, engaged by an operable control device for swinging about a lengthways axis. Each closing element comprises two or more individual lamellae (27) hinged together about the swivel axis. Each such pair is fastened to its guide elements (22, 23) so that when lowered the swivel axes are closer together than vertical lamella width, with the lamellae of each upper pair overlapping the next pair below with their bottom edges. This reflects sunlight outwards, ensures even light distribution indoors and completely clears the opening when desired.

Description

Locking device for windows,

Doors or the like. Openings The invention relates to a locking device for windows, doors or the like. Openings, the individual mutually parallel and strip-shaped Has closure elements, which longitudinal guide elements within a plane are guided up and down and on which an actuatable control device for actuating the Schuienk around a pivot axis running in its longitudinal extension attacks.

Such locking devices have the purpose of spaces in front of directly to protect incident sunlight, at the same time an even distribution to enable a desired amount of light in the room and, if necessary, the entire To fully release the area of a certain opening. You should also have a blackout of the room. In addition, they should still be installed outdoors in front of the opening to be closed, the requirements for thermal insulation, weather protection and burglary protection.

It is known to use blinds as closure devices to meet these requirements To be arranged in front of the window, door or the like. Openings, which are held by schuienkbaren Slats guarantee that directly incident sunlight is reflected outwards and at the same time the gusl addiction des Heumes about the Allow the required amount of light to be circulated inwards.

Weather protection, heat protection and the requirement for darkening of the room are not or insufficiently solved because the blind is in perfect folded state, with overlapping slats, does not close slot loose.

The reason for the slot formation between fully turned Lamellae consists in the fact that the Lsitsrkordeln even in the turned state of the lamellae act as spacers.

Because of this, the passage of cold, moisture and light on a large scale possible. Since also ladder cord and drawstring or pull rope in perfect turned state of the blinds exposed to possible external influences are, thus a cutting of the same can be carried out without effort and thus the entire blind removed as a covering part in front of the opening to be closed burglary protection is also very poor.

The invention is based on the object of a locking device for windows, doors or the like. To create openings which allow incident sunlight reflected to the outside, a uniform illumination of the interior guaranteed and, if necessary, completely releases the opening to be closed, but also provides protection against the cold, Weather protection, protection against burglary guaranteed, complete darkening of the interior and the noise development in the closed state in wind on minimum, and everything is simple in structure, function and handling.

This object is achieved according to the invention in that each closure element the closure device is formed from at least two individual lamellae, which are around the pivot axis is articulated are interconnected, and that each Single lamella pair is fixed to the associated guide elements in such a way that in the lowered state, the distance between the individual pivot axes is smaller is than the lamella width measured in the vertical direction, such that then the Single slats of each upper pair with their lower edges the single slats of the closest pair underneath without a slot.

The advantages achieved by the invention are that when closed Lamellae between them is a static layer of air that allows heat to pass through greatly reduced from the outside in and vice versa.

In addition to the dormant one located between the slats Air with a heat-insulating effect also contains still air with a heat-insulating effect Effect between the inside of the closing device and e.g. the window area the opening to be closed in the closed state of the window.

This layer of air is almost completely sealed off from the outside air and therefore also has a heat insulating effect.

The entire heat insulating effect of this closure device is even better than the thermal insulation of a roller shutter, which is known to be the best Has thermal insulation of all known locking devices. The reason for this is The fact that the roller shutter is lowered and completely closed brings good thermal insulation directly for the opening to be closed, at the same time but in the area of the roller shutter box, which has an almost direct, large-area connection to the interior and completely in the lowered state of the shutter curtain is empty, enables very good heat transfer from the inside to the outside.

This critical negative factor falls in the case of the invention Locking device away, as this is the only connection to the interior space with a breakthrough makes it necessary for rod crank or pull rope. With completely closed slats the passage of air in both directions is blocked. Because of this, of course, can neither rain, nor wind, nor snow can get inside to the window. So the Requirement for weather protection fully met.

If the lamellae are completely closed, there is of course also the passage of sound considerably limited from the outside to the inside, e.g.

because part of the sound when it hits the closed lamellar surface is reflected outwards and an amount reduced by this proportion inwards advances further through the closure device.

Since the slats are made of opaque material and are in When completely closed, overlap without a slot is a complete darkening the opening to be closed can be reached.

The pull rope and the other guide elements are in the closed state the locking device completely from the slats and the lateral, movable ones Covered guide rails.

For this reason, the effort to eliminate the inventive Locking device by burglars comparable to the effort required to remove it of a roller shutter, especially since there are additional locking systems on this locking device of the type already used in the roller shutter can be attached. For this The reason is also extensive protection against burglary. When closed of the lamellas, these are formed by at least two pairs of guide rails parallel to the lamellar plane so held to each other that a swinging of the slats under the action of wind and the associated noise development impossible is made. the end For this reason, the entire noise development is in wind and in closed Condition of the pairs of lamellas limited to a minimum.

The achievable advantages of thermal insulation, weather protection, sound insulation, Burglary protection, then the possibility of a considerable reduction in noise in the wind, show a development in the new locking device, which combines the advantages of the blind with the advantages of the roller shutter. So can In the future, all rooms and buildings for reasons of lighting the interior necessarily on a locking device with pivotally held on slats are instructed to enjoy the benefits that were previously only available with roller shutters reserved for equipped rooms.

These are mainly administration and office buildings, banks, schools, Kindergartens, universities, hospitals, staff dormitories, department stores and partially Factories.

If one takes into account that a cooling of these buildings, with partial huge window areas, during the night and on weekends the energy requirement significantly enlarged, it is immediately clear that with the help of this novel locking device the energy consumption can be reduced considerably.

There, based on the total consumption of energy, more in Germany than 50% is accounted for by the heating sector, the possibility of energy savings must be possible can be regarded as very considerable.

In an advantageous embodiment, each individual lamella is one Lamella pair dimensioned the same size with respect to their lamella width. This will achieved that at least for one locking device standardized, of the TYPE here Similar slats can be used. Also will the smallest possible space requirement in the raised state of the closure device of the Lamellan-Pakstes guaranteed in terms of the width, since the widths of the individual Slats are excluded.

Another advantage is that the pivot axes of the individual pairs of lamellae at the same distance, parallel to each other and in one plane. Form thereby There are also no slots in the lamellae to each other in the horizontal through which Light, air or moisture could penetrate to the opening to be closed. In addition, with parallel swivel axes, the slats can have a rectangular strip shape be designed to meet the requirement for mutual overlap in the closed Sufficient condition.

It is also advantageous to use swivel joints or swivel joint rails to be used as elements for connecting two single slats to form a pair of slats. The same standardized swivel elements can be used throughout Wear in the joint training is low and therefore flawless in the long term Guarantee function. The joints should be dimensioned so that they when stacked on top of each other result in as low a height as possible, so in a raised position State of the locking device, the lamella package also assumes a low height.

It is also advantageous that the swivel joints and possibly

used swivel joint rails in the area of their swivel axes Guide elements are fixed, which preferably as rollable ropes or bands are trained. Since the swivel axes lie in the middle of each pair of slats, is a fixation of the guide elements in the area of the pivot axis at the same time a support of the pair of lamellas in the center of gravity. This becomes the Endeavor of the pairs of lamellae tipping, counteracted. The preferably Design of the guide elements as roll-up tapes or ropes is very useful, because ropes and ribbons do not have the slightest resistance to the stacking of the pairs of slats and apply very little in relation to the package height.

In addition, the guide element can be designed as a rope or Tape can be shortened or lengthened very easily by rolling it up or down.

It is also advantageous that each lamella of a pair of lamellae is provided with a guide nipple at each of the two corners, which is connected to the pivot axis of the respective lamella, measured at right angles to the pivot axis, furthest are away.

The nipple guide of a lamella always has the advantage, in principle, that the connection of the part to be guided with the guide element only in one Allowing the part to be guided to slide in or over relative to the guide element consists. All other ways of connecting the part to be guided to the guide element, from gluing to clamping are very time-consuming and therefore considerably more expensive.

It is advantageous to have the guide nipple of each lamella in a guide element preferably to guide in a sliding manner that is parallel to the plane of the pivot axes of the pairs of lamellae and at the same time runs at right angles to the pivot axis of the associated lamella. It is essential to ensure that the package height when the Pairs of lamellae is small. If the guide nipples are rolled, then they must in the guide piece of the nipple axis and a rolling part running above it be. If they are guided in a sliding manner, the additional order falls through the rolling parts path.

It is also advantageous to use the guide elements, which are used to guide the nipples are used to form guide rails. The guide element be designed as a bar profile, each in the desired length of industrial manufactured series parts can be separated.

As a bar profile, in contrast to tape and cord, is largely pressure-resistant and is rigid, the entire closure device is made by using rod profiles stabilized as guide elements in itself.

It is also advantageous to use the guides that are guided in the guide rails Guide nipple pivotable about an axis extending to the pivot axis of a pair of lamellae respectively. This measure makes it possible to swivel the individual Slats of the pair of slats maintain a direct connection to the guide rails and thus the stabilizing effect on the entire association of the pairs of lamellae to guarantee every position of the slats. In an advantageous embodiment the guide nipple is then guided in the guide slot of the guide rail T-nipple formed, the transverse end piece is rounded. So is this round, transverse end piece of the guide nipple at the same time swivel axis of the nipple.

It is advantageous to use the two guide rails which are connected to each other, measured perpendicular to the plane of the pivot axes of the pair of lamellae3, the smallest Take a distance to each other in pairs via at least one rod joint system associate. Since the guide rails have the task of a certain number of To guide pairs of slats in the pivot axis plane of the slats, and To enable the slats to open and close at the same time, they must be related their distance to each other were considered to be movable.

This task is best fulfilled by a rod joint system, on the one hand at several points on the pair of guide rails articulately attacks and on the other hand, is fixed immovably on a window reveal, for example.

It is advantageous to design the rod joint system so that of one of the tensile force counteracting the weight, which is greater in amount than the The force of weight is the guide rails until their inner surfaces touch each other are moved towards each other and are moved apart again when the pulling force is smaller than the weight.

In addition to their actual guiding function, the guide rails also the task of actively supporting the pivoting of the individual pairs of slats. Since the pairs of lamellas have the task of being in the completely closed state of the same the area between the window and the inner surface of the closure device facing the window close off largely and airtight from the outside area in front of the connection device, the edges of the individual slats must, if possible, be attached to the next one below Lamella surface are pressed.

The outer edges of the individual slats can be turned upside down or additional profiles be reinforced. The task described is best performed by the Guide rails solved, with which each individual slat of a pair of slats is connected, in which the guide rails of a pair of guide leashes on both sides pressed against the already closed lamellae. This double-sided pressure the guide rails on the pairs of slats is caused by an upward tensile force caused, which in turn via a rod joint system connected to the guide rails is passed on to them.

It is advantageous that the pairs of lamellae are in the plane of the pivot axis and at the same time at right angles to the pivot axis of a single pair of blades a sealing strip is fixed.

This allows air and heat to pass from the area between the window and the inner surface the locking device to the outside are largely prevented, is on the left and right side of the opening to be closed in the area between the reveal and Closure device attached a sealing strip.

This sealing strip is dimensioned in such a way and, for example, as a T-profile with regard to their web profiled so that the respective pair of guide rails a pressure on the closed lamellae of the locking device and at the same time a Pre0 pressure exerts on the sealing strip. Are the individual guide rails still with Provided sealing strips, a largely airtight seal can be achieved.

It is also advantageous that the end strip of the closure device of two pivotable about an axis parallel to the axis of the lamella pair pivot axis consists of interconnected hollow profiles, which in length, width and cross-section are dimensioned the same and corresponding to the pairs of slats in the same guide elements guided and kept at a distance by the distance guide ropes. Here can parallel to the pivot axis of the pair of trailing edges and the plane of the pivot axes Pairs of slats e.g. on the window ledge below the pair of end strips a horizontal sealing strip not shown in the exemplary embodiment can be attached, which in the pivoted, i.e. closed state of the pair of trailing edges and in cooperation with this forms a very tight seal along its length. the functional integration of the trailing edge into the overall system of the locking device is due to the guidance of the end strips and the pairs of lamellas in the same guide elements guaranteed.

The invention is explained in more detail below with reference to drawings. 1 shows a front view of a locking device which is in the reveal the opening to be closed is mounted and is in the open state, Fig. 2 is a partially sectioned plan view of the closure device from above with the upper rail removed in the open position of the slats, FIG. 3 a partially sectional plan view of the locking device from above with the upper rail removed in the closed position of the slats, FIG. 4 in an isometric view Locking device in the open position of the slats.

In Fig. 1, the opening 10 to be closed is vertical with the right Reveal side 12 and a left vertical reveal side 13, one above it Lintel 15 and a window ledge 14 running horizontally below it.

This opening 10 is covered by a closure device 11, the Upper rail 30 runs parallel to the upper edge 15 of the opening 10 and is attached to it is.

In the upper rail 30 there is a rotatably mounted axle 47, on which the traction cables 31 and 32, which are connected to the rod joint systems 40 and 41 are attacking. In addition, at least two spacer guides engage on this axis 47 ropes 22 and 23, which are at a distance from each other.

At this distance ünrunsss2ilan 22 and 23 are the pairs of lamellas, consisting of the individual lamellae 26 and 27, fixed.

In addition, there is the pair of Endlaists, consisting of the single end strips 23 and 29, fixed to the end point of the distance guide ropes 22 and 23.

In the front view in FIG. 1, however, only the lamellae 27 are shown the lamellae and the trailing edge 29 of the trailing edge pair can be seen.

Also on the pair of end strips 23, 29, at least two are spaced apart held from each other pull cords 24 and 25, which in the middle distance range between the individual slats 26 and 27 freely movable through to the top rail 30 are performed, within which they are known and therefore not shown Attack the axle winding mechanism.

On the reveal sides 12 and 13 there is a vertically extending one Sealing strip 16 and 17 mounted on which via rod joint systems not shown in FIG 40 and 41, the two pairs of guide rails 13, 20 and 197 21 movable and at a distance are held to each other.

In Fig. 2 are on the vertical reveal sides 12 and 13, the two Sealing strips 16 and 17 attached. On these sealing strips 16, 17 are in the points 42, 43 hold the two rod joint systems 40, 41, which in turn hold the pairs of guide rails Keep 13, 20 and 19, 21 at a distance from one another.

The guide rail pairs 18, 20 and 19, 21 in turn lead the pairs of lamellae 26, 27, as well as the final power pair 28, 29 along the to be closed Opening 10 with the help of the nipple pairs 70, 72 and 71, 73 freely movable.

At least two pivot joints 38 and 38 held at a distance from one another 39 bind the slats 26 and 27 together to form a pair of slats. The distance guide ropes 22 and 23 are fixed to the swivel joints 38 and 39. The pull cables 24 and 25, on the other hand, are freely movable in the central spacing area of the slats 26 and 27 passed through.

The arrangement in Fig. 3 corresponds to the arrangement in Fig. 2, wherein In this figure, the pair of lamellae 26, 27 seen from above is kept closed. The spacer guide ropes 22 and 23 and the pull ropes 24 and 25 are located inside of the cavity which is formed together by the two lamellae 26 and 27.

The guide rail pairs 13, 20 and 19, 21 are simultaneously pressed onto the sealing strips 16 and 17 and the lamellae of the pair of lamellas 26, 27.

In Fig. 4 are the lamellae 20 and 27 and the end strips 23 and 29 fixed on the distance guide cable 22 in the area of the pivot joint 38 and thereby kept at a distance from each other.

The illustration also shows the guidance of the lamellae 26 and 27 through the corner nipples 70, 72 in the pair of guide rails 18, 20.

The end strips 28 and 29 are also with the help of a swivel joint 38 connected to form a pair of trailing edges. The pair of end strips 29, 29 is also with With the aid of nipples 70, 72, one of which is shown in FIG. 4, in the pair of guide rails 18, 20 led.

The pair of end strips 28, 29 protrudes in contrast to the pairs of lamellae 26, 27 not into the area of the guide rails 18 and 20. The reason for this consists in the thickness of the individual end strips 28 and 29, which for the bending stiffness and thus the load-bearing capacity of the pair of trailing edges 28, 29 is responsible. Will the thin-walled lamella pairs 26, 27 completely closed and there the pair of guide rails 13, 20 fully to the sealing strip 16 and the slats 18 and 20 pressed, the remaining distance between the guide rails is not enough to accommodate the profiled end strips 23, 29.

The pair of guide rails 18, 20 is supported by the rod joint system 40 connected, which is firmly connected to the web of the sealing strip 16 at the hinge point 42 is. This sealing strip 16 is shown in FIG. 4 only for the sake of better illustration shortened to a fraction of its length.

The rod articulation system 40 is at the articulation point 54 with a pull rope 32 connected, which is fixed to the rotatably mounted axle 47. On the same axis the distance guide rope 22 is also fixed.

The rod joint system 40 shown in dashed lines is such that that two rods 50 and 51 of equal length are crossed in their center 55 and around an axis parallel to the pivot axis of the slats 26 and 27 rotatably held relative to one another are. The two rods 50 and 51 are each with their two end points with one Guide rails 18 and 20 connected.

The respective upper end point of the two rods 50, 51 is fixed to one Point of the associated guide rail 18 or 20 held and at this point around an axis rotatably mounted, which is parallel to a pivot axis of a pair of lamellae 26, 27 runs.

The respective lower end point of the two rods 50 and 51 is also each connected to an associated guide rail 18 or 20 as follows, that the end points along one extending along the guide rail edges Groove are guided.

The two upper points of the two bars are each with one Rod 52 and 53 connected, which at connection point 54 also about a pivot axis to the slat parallel axis is rotatably held. The two rods 52 and 53 each have the half the length of the maximum distance between the guide rails 18 and 20, with this distance measured at right angles to these two guide rails 18 and 20 is.

These two rods 52 are at their end points pointing towards one another and 53 rotatably connected to one another about an axis parallel to the lamella axis, and fixed to the pull rope 32 at this pivot point 54.

The sealing strip 16 is fixed to the vertical reveal piece 12, which is shown as a section in the illustration, as well as the one below Window sill panel 14 is shown only as a portion of the overall panel.

Mode of operation In the fully raised state of the locking device 11 are the individual pairs of slats in the open state of the slats 26, 27 and with the smallest possible distance, perpendicular to the plane the open Lamellas 26, 27 measured as a stack of packages directly below the top rail 30 of the Locking device 11.

If the closure device 11 is now to be lowered the two pull cords 24, 25 acting on the two-part end rail 28, 29 Help, for example, extend a rod drive by pushing it through like a blind Rotary movement of their winding axis are unrolled.

The weight of the z.3. still baschwarten end rail 23, 29 moved these corresponding to the pull rope extension downwards, with hai pull ropes 24, 25 are constantly excited and thus at the same time as a guide for the individual Pairs of lamellae 25, 27 are used.

The weight of the pairs of lamellae 26, 27, which are doughy from the two Trailing edge 28, 29 are kept in a completely raised and stacked state, of course moves the entire stack of lamella pairs 25, 27 also downwards.

This entire stack lies on the two-part end strip 23, 29, these in turn the total weight of the pairs of lamellae 26, 27 again on the pull cables 24, 25 has to be removed.

Before, with this downward movement, the one on top of the stack of lamellas the pair of slats located has reached a distance from the upper rail 30, which is equal to the width of the lamellae removed on the two tensioned pull cables 24, 25 is a lamella 26, this pair of lamellae 26, 27 is on the further downward movement prevented. This is done in that the two guide elements 22, 23, which on the one hand on a rotatably mounted axle running in the upper rail 30 47 are fixed and on the other hand in the area of the pivot joints 38, 39 of each pair of lamellae 26, 27 are fixed from their collapsed state by the force of weight of the top pair of lamellas are brought into a fully tensioned state, and thus prevent further downward movement of the pair of blades 26, 27.

If the two-part end rail 28, 29 moves with the one on it The next pair of lamellae 26, 27 will also be stacked further down in its downward movement through the guide elements designed as guide spacer cables 22, 23 in the manner described above in his Downward movement blocked. The top pair of lamellas 26, 27 is located from the top rail 30 at exactly the same distance as the second pair of lamellae below 26, 27 of the first pair of lamellae is located.

The fact that the individual slats 25, 27 of the pairs of slats also are held open in the lowered state, so to each other an angle of 180 °, they owe the leadership of the individual lamellae 26, 27 over one each attached to its two outer corners guide nipples 70, 71, 72, 73 in the associated Guide rails 18, 19, 20, 21. Because this prevents the slats 26, 27 from Fold down in the direction of the plane of the swivel axis of the pairs of lamellae.

If the locking device 11 is partially or completely lowered State, the slats 26, 27 of the slat pairs can be pivoted to each other.

In this case, for example, an endless cord 33 is rotatably mounted Axis 47 set in rotary motion, to which on the one hand the swivel joint area 38, 39 of the pairs of lamellas 26, 27 engaging spacer guide cables 22, 23 fixed and on the other hand the pull cables 32, 31 for actuating the rod joint systems 40, 41, which connect the individual guide rails 18, 20, 19, 21 in pairs. By the rotary movement of the axle 47 is, on the one hand, that of the swivel joints 38, 39 of the pairs of lamellas 26, 27 attacking spacer guide cables 22, 23 and shortened at the same time the guide rails 18, 20, 19, 21 each of a pair of guide rails Moved towards one another via the rod joint systems 40, 41. Thus the single slats 26, 27 of the pairs of lamellae simultaneously through the guide rails 18, 20, 19, 21 pushed towards each other and by the shortening of the distance guide ropes 22, 23 in their endeavor to swing towards each other, reinforced.

If the partially lowered closure device 11, dren pair of lamellae 26, 27 are now partially pivoted towards one another and at an angle to one another occupy less than 900, be completely closed, it must also be completely be lowered.

If the locking device 11 is completely lowered, is through the actuation of the endless cord 33 already listed, the pivoting process continued until the guide rail pairs 18, 20, 19, 21 firmly on the sealing strip 16, 17 and the pairs of lamellae 26, 27 are pressed and the pairs of lamellae 26, 27 exactly by their smallest distance measured on the pull cables 24, 25 in the direction the top rail 30 are conveyed.

Should the still closed closure device 11 now - open again are, the rotatably mounted axle 47 via the endless cord 33 in the opposite direction Moved direction of rotation and thus the distance guide ropes 22, 23 and the on the rod joint systems 40, 41 engaging traction cable 32, 31 extended downwards.

As a result, the individual guide rails 18, 20, 19, 21 of the guide rail pairs moved apart and the pivot axes of the pairs of lamellae moved downwards. Here fold the individual slats 26, 27 of the slat pairs apart until the The slats are fully open and form an angle of 1800 to each other.

If the closure device 11 is now to be pulled upwards the two traction cables 24, 25 acting on the pair of end strips 28, 29 are shortened. That The pair of trailing edges 28, 29 moves upwards and stacks in this upwards movement a pair of slats 26, 27 on the other, with the spacer guide cables 22, 23 are collapsed between the individual pairs of lamellae 26, 27.

Claims (17)

Claims 1. Werschlußeinrichtung for windows, Türsn od. Like. Openings, the individual parallel and strip-shaped locking elements has which longitudinal guide elements within a plane up and down are guided and on which a botntigb3re control device for swiveling beta-tigun # engages around a pivot axis running in its longitudinal drying, d e d u r c It is noted that each closure element consists of at least two individual lamellae (26 and 27) is formed, which are connected to one another in an articulated manner about the pivot axis are, and that each individual pair of lamellas (26, 27) on the associated guide elements (22 and 23) is fixed in such a way that in the lowered state the state of the individual Pivot axes from each other is smaller than that measured in the vertical direction Lamella width, such that then the individual lamellae (26, 27) of each upper pair with their lower edges the individual lamellae (26, 27) of the one below Cover the pair without a slot. 2. Closing device according to claim 1, d a d u r c h g e k e n n z e i c h n e t that each individual lamella (26, 27) of a pair of lamellae with respect to their lamella width is dimensioned to be the same size. 3. Locking device according to claim 1 or 2, d a d u r ch g a k it is noted that the pivot axes of the individual pairs of lamellas are the same Distance, parallel to each other and in one plane. 4. Closure device according to claim 3, d a d u r c h g e k e n n z e i c h n e t that the pivotability of the individual slats (26, 27) of a pair of slats around its pivot axis by means of pivot joints (38, 39) fixed to the slats will. 5. Closure device according to claim 4, d a d u r c h g e k e n n z e i c h n e t that the pivot joints (38, 39) in the area of their pivot axes are fixed on guide elements (22, 23), which are preferably rollable Ropes or bands are formed. 6. Enclosure device according to one of claims 1 - 5, d a d u r c h g e k e n n n z e i c h n e t that each lamella (26, 27) of a lamella pair Provided with a guide nipple (70 and 72, 71 and 73) each at the two corners is that of the pivot axis of the respective lamella (26, 27), at right angles measured farthest away from the swivel axis. 7. Closure device according to claim 6, d a d u r c h g e k e n n show that the guide nipples (70, 72, 71, 73) of each lamella (26, 27) are preferably slidably guided in a guide element (18, 20, 19, 21), the parallel to the plane of the pivot axes of the pairs of lamellae and at the same time in the right Angle to the pivot axis of the associated lamella (26, 27) runs. S. locking device according to claim 7, d a d u r c h e <e It is noted that the guide elements (13, 20, 1 '?, 91) act as guide rails are trained. 9. Closure device according to claims 7 and F, d a d u r c h g e it is not possible that the girdle in the guide rails (13, 23, 19, 21) Guide nipples (70, 72, 71, 73) around one parallel to the pivot axis of a pair of lamellae extending axis are pivotably guided. 10. Jerschlußeinrichtung according to claims 9, d a d u r c h g e k e n n z s i c h n e t that in each case the two guide rails (13, 20, 19, 21), which Measured perpendicular to the plane of the pivot axes of the pairs of lamellae, to each other take up the smallest distance, in pairs via at least one rod joint system (40, 41) are connected to each other. 11. Locking device according to claim 10, d a d u r c h g e k e n It is indicated that the rod joint system (40, 41) is such that from one of the tensile force counteracting the weight, which is greater in amount than the Weight is the guide rails (18, 20, 19, 21) until they touch each other their inner surfaces are moved towards each other and are moved apart again, if the tensile force is less than the weight. 12. Locking device according to one of claims 1-11, d a d u r c h g e k e n n n n z e i c h n e t that in the pivot axis plane of the pairs of lamellae and at the same time at right angles to the pivot axis of a single pair of blades a sealing strip (16, 17) is fixed. 13. Locking device according to claim 12, d a d u r c h g e k e n n z 9 i c h n e t that by, a tensile force acting on the rod joint system (40, 41) the two guide rails (10, 20, 19, 21) of a pair of guide rails each with one inside at the same time to the sealing strip (16, 17) and to the lamellas (26, 27) of the completely closed pairs of lamellae are pressed. 14. Closure device according to claim 13, d a d u r c h g e k e n nz e i c h n e t that the process involves moving the two towards each other associated guide rails (18, 20, 19, 21) of a pair of guide rails Slats (26, 27) steplessly from the open state, in which they are an angle from at least about 1900 form, can be slid into the closed state which they form an angle of essentially 0 ° to each other, and during the process moving apart the slats of a pair of slats in an analogous manner from the guide rails (18, 20, 19, 21) of a pair of guide rails pulled apart will. 15. Closure device according to one of claims 1-14, d a d u It is noted that the movement of the pairs of lamellae is perfect open to fully closed and vice versa by shortening or the spacer guide cables (22, 23) are lengthened. 16. Locking device according to claims 13-15, d a d u r c h g It is not noted that the rod joint systems (40, 41) and the Distance guide ropes (22, 23) acting tensile force with the help of traction ropes (31, 32, 22, 23) is transmitted with respect to the axis (47) in the area of the head rail (30) is rotatably mounted, can be wound and unwound. 17. Varschlusseinrichtung according to any one of claims 1 - 16, d a d u r c h g a k e n n z 9 i c h n e t that also the end of the locking device (11) from zujei pivotable about an axis parallel to the axis of the lamallan pair swivel axis interconnected hollow profiles (2 #, 29) are made in length, width and Cross-section are dimensioned the same and corresponding to the pairs of lamellae in the same Guide elements (13, 2D, 19, 21) and guided by the distance guide ropes (22, 2a) must be kept at a distance.