EP3348772A1 - Device for moving and locking of lamellae of a lamella construction - Google Patents

Abstract

The invention relates to an arrangement for moving and locking lamellae of a lamella construction, which are used in particular in building installations. The invention has for its object to provide a way for an arrangement for moving and locking a lamella construction, which is low maintenance and consists of as few as possible, simply constructed items. The object is achieved by an arrangement for moving and locking lamellae of a lamellar construction by a coupling rod, which can perform a movement with one degree of freedom is provided with a driving pin, which is guided in an angled slot and this slot belongs to a driver, the is connected to a lamella, so that the linear movement of the coupling rod is converted into a rotational movement of the lamella. At the same time takes place by the design of the elongated hole a lock after closing the slat, so that the outside of the slat can not be opened.

Description

The invention relates to an arrangement for moving and locking lamellae of a lamella construction, which are used in particular in building installations.

Lamellar constructions generally have a plurality of rotatably or pivotably mounted lamellae that can be moved back and forth between a closed and an open state by means of a movement mechanism. Depending on the size or function of the lamella construction, it may be necessary to lock it in the closed state. This makes it possible, for example, to decouple the movement mechanism and the drive from forces that arise when sealing the lamella construction with sealing elements against which the lamellae must be pressed. Furthermore, it is possible with a suitable Verrieglung the lamellar construction to protect against the direct effect of wind loads or effectively prevent violent opening from the outside. For optical reasons and to protect against environmental influences and pollution, the movement mechanism is advantageously arranged within the lamella construction. For this it is necessary to keep this entire arrangement for moving and locking slats as compact as possible.

A arranged within the frame of a lamella construction and provided with a locking arrangement for moving is in the patent DE 10 2009 005 594 B4 disclosed. The arrangement for moving consists on both sides of the slats of a plurality of lever arms. The lever arms are connected via two hinges with the lamella and two pivot joints with the frame. In each case another rotary joint connects the arrangement for moving with a linearly movable in the frame drive element and two of the lever arms together. Due to the lengths of the lever arms and the positions of the hinges a tilting and Ausstellbewegung the slats is performed when opening and closing. In order to lock the slats in the closed state, one of the lever arms has a hook-shaped end which engages around a bolt fastened to the slat when the slat construction is closed.

Disadvantage of this arrangement for moving is the relatively complex structure with 12 hinges per blade. The more joints such an arrangement, the higher its maintenance.

From the patent GB 1396285 A a hand-operated arrangement for moving a lamella construction is known. The lamellae have on both sides in each case a short shaft through which passes the axis of rotation of the lamellae.

To open and close the lamellae, the shafts are rotatably received in pivot bearings in the frame of the lamella construction. To couple the rotational movement of the individual slats, the end of each of the shafts is connected on one side of the slats with two antiparallel coupling rods. The coupling rods are movably received on two axially parallel to the axis of rotation oriented pin, which are attached to both sides of the axis of rotation of the respective shaft. On one of the coupling rods, a plate is secured with a slot-shaped opening between the pivot bearings of two adjacent lamellae. On the other coupling rod is received at about the same position pivotable about a pivot actuating lever with a handle. On the opposite side of the handle of the pivot point, the actuating lever has an engaging in the slot-shaped opening of the plate driver. The driver is a rotatably mounted on a bolt roller. During a pivoting movement of the actuating lever, the coupling rods are moved antiparallel via the bearing of the actuating lever and via the guided inside the opening driver. The movement is transmitted by means of the pins on the shafts, whereby all connected to the coupling rods slats are moved about the axes of rotation.

In order to lock the slats in the closed state, the otherwise linear slot-shaped opening has an angled end. In the closed state of the lamella construction there is the driver of the actuating lever. To lock the angled end and the driver is positioned to the pivot point of the actuating lever, that the driver must exceed a reversal point before reaching the angled end, behind which the actuating lever is held in the locked position by a force emanating from the blades. The reversal point is located where the driver exceeds an imaginary, oriented perpendicular to the motion vector of the coupling rods connecting line to the pivot point of the actuating lever. The outgoing of the blades force is obviously achieved here by the back pressure of the elastic sealing elements, to which the blades are applied in the closed state. The reversal point can be overcome only by the hand-carried pivotal movement of the actuating lever, so that the lamellar construction is not open from the outside. Locking would also work with a linear breakthrough without the angled end. With the angled end, however, the required to take the locked position path of the actuating lever can be shortened. The disadvantage is that after exceeding the reversal point, the force acting on the sealing elements in the closed state decreases again, which can adversely affect the sealing of the lamella construction.

Depending on the size of the lamella construction, it may also be disadvantageous that only one arrangement for moving is present for locking the louvers coupled via the coupling rods. The sealing of the entire fin construction with the elastic sealing elements requires a certain contact pressure. A resulting movement resistance can cause a very high mechanical stress for the individual arrangement.

With the implemented principle of the arrangement for moving 5 rotary joints for transmitting the rotary motion are required per lamella, which is assumed at the movable connection between the coupling rods and the pin of higher tolerances, which further complicate a secure sealing of the lamella construction.

The invention has for its object to provide a way for an arrangement for moving and locking slats of a fin construction, which is low maintenance and consists of as few as possible, simply constructed items.

• ein Drehlager mit einer Drehachse,
• eine koaxial im Drehlager drehbar aufgenommene Welle, mit einer zur Lamelle weisenden ersten Stirnfläche und einer zweiten Stirnfläche,
• ein Anschlussstück, das fest an der ersten Stirnfläche der Welle angeordnet ist,
• ein Verbindungselement, das fest an der zweiten Stirnfläche der Welle angeordnet ist und
• Mittel zum Bewegen der Lamelle, eine Koppelstange aufweisend, mittels der die Lamelle bewegbar ist, wobei die Koppelstange eine Verbindung zum Verbindungselement und zu einer Mitnehmereinrichtung aufweist, die einen Mitnehmerzapfen und einen langlochförmigen Durchbruch zum Aufnehmen und Führen des Mitnehmerzapfens aufweist, wobei der Durchbruch ein in einem Winkel abgewinkeltes Ende zum Verriegeln der Lamelle mittels des Mitnehmerzapfens aufweist, wobei
• das Verbindungselement ein Hebelarm ist, der mit einem festen Ende drehfest an der zweiten Stirnfläche der Welle angeordnet ist,
• der Durchbruch im Hebelarm angeordnet ist,
• der Mitnehmerzapfen in den Durchbruch des Hebelarms eingreifend an der Koppelstange angeordnet ist und die Koppelstange entlang ihrer Achse linear beweglich geführt ist,
• der Durchbruch sich an einem Scheitelpunkt des Winkels in einen geraden ersten Schenkel und geraden zweiten Schenkel aufteilend angeordnet ist, wobei der zum festen Ende weisende erste Schenkel in radialer Richtung zur Drehachse angeordnet ist und der zu einem losen Ende des Hebelarms weisende zweite Schenkel parallel zur Achse der Koppelstange ausgerichtet ist, solange der Mitnehmerzapfen sich zwischen oberer Endlage und Scheitelpunkt des Winkels bewegt wird.

The object is achieved by an arrangement for moving and locking lamellae comprising a lamella construction

• a pivot bearing with a rotation axis,
• a shaft rotatably received coaxially in the rotary bearing, with a first end face pointing towards the slat and a second end face,
• a fitting fixedly attached to the first end face of the shaft,
• a connecting element which is fixedly arranged on the second end face of the shaft and
• Means for moving the blade, having a coupling rod, by means of which the blade is movable, wherein the coupling rod has a connection to the connecting element and to a driving device having a driving pin and a slot-shaped opening for receiving and guiding the driving pin, wherein the opening in a Having an angle angled end for locking the blade by means of the driving pin, wherein
• the connecting element is a lever arm which is non-rotatably arranged with a fixed end on the second end face of the shaft,
• the breakthrough is located in the lever arm,
• the driving pin is arranged engaging in the opening of the lever arm on the coupling rod and the coupling rod is guided linearly movable along its axis,
• the breakthrough is arranged at a vertex of the angle in a straight first leg and straight second leg dividing, wherein the fixed end facing the first leg is arranged in the radial direction to the axis of rotation and pointing to a loose end of the lever arm second leg parallel to the axis the coupling rod is aligned, as long as the driving pin is moved between the upper end position and vertex of the angle.

Advantageous embodiments result from the dependent claims.

Fig. 1

einen prinzipiellen Aufbau einer Anordnung zum Bewegen und Verriegeln von Lamellen einer Lamellenkonstruktion,

Fig. 2

einen prinzipiellen Aufbau der Anordnung in einer anderen Ansicht und

Fig. 3

einen prinzipiellen Aufbau der Anordnung in einer Ansicht ohne Darstellung des Rahmens.

The invention will be explained in more detail with reference to embodiments. In the accompanying drawings show:

Fig. 1

a basic structure of an arrangement for moving and locking slats of a fin construction,

Fig. 2

a basic structure of the arrangement in another view and

Fig. 3

a basic structure of the arrangement in a view without representation of the frame.

The arrangement for moving and locking lamellae of a lamella construction comprises according to Fig. 1 a rotary bearing 1 with an axis of rotation 10. The pivot bearing 10 has the shape of a cylindrical sleeve which is mounted in a frame 11 (shown in the figures only as a section) of the lamella construction, not shown, which forms a supporting structure for the entire lamella construction.

In the pivot bearing 1, a shaft 2 is accommodated, which is rotatably mounted about the axis of rotation 10. The shaft 2 has a first end face 21 and a second end face 22. The first end face 21 faces a lamella 7 (indicated by a dotted line in the figures) of the lamella construction. At the first end face 21, a connecting piece 3 is arranged rotationally fixed. The connector 3 is a cuboid body, with which a positive and non-positive connection to the blade 7 can be produced. The second end face 22 of the shaft 2 has a coaxially arranged profile extension 23 for producing a positive and non-positive connection to a connecting element.

At the second end face 22, the connecting element is received on the shaft 2. The connecting element is a lever arm 4 made of a strip-shaped flat material, with a fixed end 41 and a loose end 42. The fixed end 41 of the lever arm 4 is flat against the second end face 22 and a positive connection to the profile extension 23 rotationally fixed to the shaft 2 arranged connected.

At the loose end 42, a lever arm 4 in the direction of the axis of rotation 10 penetrating, slot-shaped opening 43 is arranged. The opening 43 has a constant width b. In the course of the slot, the opening 43 is angled at an angle α. At a vertex S of the angle α of the opening 43 is divided into a straight first leg 44 and a straight second leg 45. The first leg 44 pointing from the vertex S to the fixed end 41 is arranged in the radial direction to the axis of rotation 10. The second leg 45 pointing from the vertex S to the loose end 42 is arranged in the course of a passante to the axis of rotation 10, wherein it the radial direction, as shown in FIG Fig. 1 , is arranged with the angle α leaving in a clockwise direction.

Engaging in the opening 43 is axially parallel to the axis of rotation 10, a cylindrical driving pin 5 is arranged. It has a slightly smaller diameter than the width b of the opening 43, so that it is movable with little play in the slot-shaped opening 43.

The driving pin 5 is fixedly connected to a Mitnehmerzapfenhalter 51. The Mitnehmerzapfenhalter 51 is a cuboid body which is adjustably attached to a coupling rod 6.

The coupling rod 6 is arranged with its axis along the frame 11, orthogonal to the axis of rotation 10 and at an axial distance from the axis of rotation 10. The coupling rod 6 has a circular cross-section and is mounted linearly movable along its axis in two plain bearings 61. The plain bearings 61 are arranged along the coupling rod 6, symmetrically to both sides of the pivot bearing 1 and are fixedly connected to the frame 11.

The driving pin holder 51 carrying the driving pin 5 is received between the sliding bearings on the coupling rod 6. For this purpose, the Mitnehmerzapfenhalter 51 has a through hole with which it is pushed onto the coupling rod 6. The attachment of the Mitnehmerzapfenhalters 51 to the coupling rod 6 is detachable and takes place by means of screwed-in to the coupling rod threaded pins 52nd

To perform a controlled movement of the blade 7 between an open and a closed and locked state, the coupling rod 6 is connected to a linear drive 8. Suitable linear actuators 8 are known from the prior art and will not be further elaborated here. With the linear drive 8, the coupling rod 6 is linearly displaced in the plain bearings 61.

In the FIGS. 1 to 3 the arrangement is shown on a vertically oriented and in the closed and locked state located lamella construction (not shown). In the closed state, the coupling rod 6 is in an upper end position O. In the upper end position O is the driving pin. 5 above an imaginary horizontal H through the axis of rotation 10 of the pivot bearing 1 and is located within the second leg 45th

Taking into account the forces required to move the blade 7 and under the requirement to integrate the arrangement as possible to save space in the frame 11 of the fin construction, the axial distance between the rotation axis 10 and coupling rod 6 and thus the lever arm 4 is kept as short as possible. When closed, the lever arm 4 assumes an angle of approximately 45 ° to the imaginary horizontal H.

The angle α and a radius r of the vertex S to the axis of rotation 10 are matched. In the embodiment shown in the figures, the value of the radius r = 45mm and that of the angle α = 45 °. In the size range of the angle α from> 0 ° to <90 °, other values for the radius r and the angle α are possible, with only angles in the size range between 30 ° and 60 ° under the previously mentioned specifications and the usual opening angles of lamellae of a lamella construction are meaningful. The values for the angle .alpha. Should always be selected such that the second leg 45 runs parallel to the coupling rod 6 in the closed state. By this course, the blade 7 is locked against opening from the outside.

In an attempt to rotate the blade 7 by an external force, the force is transmitted from the shaft 2 via the lever arm 4 on the driving pin 5. A moment acting on the driving pin 5 is aligned by the orientation of the second leg 45 almost orthogonal to the course of the coupling rod 6. The introduced force is transmitted via the Mitnehmerzapfenhalter 51 and the coupling rod 6 radially to the plain bearings 61 and derived in the frame 11. An acting in the axial direction of the coupling rod 6 proportion of the force is, if any, vanishingly small, so that it is not possible to transmit the force acting from the outside on the blade 7 force on the coupling rod 6. Therefore, connected to the coupling rod 6 linear drive 8 requires no high holding forces and can be designed accordingly small and cost-saving.

In the controlled movement to open the blade 7, the coupling rod 6 is moved down from the upper end position O out. Following the coupling rod 6 the drive pin 5 is moved within the second leg 45 downward. The displacement in the straight second leg 45 is carried out without overcoming a force, such as is generated for example at the known from the prior art reversal point of the slats 7. Since the second leg 45 extends parallel to the coupling rod 6, the displacement within the second leg 45 initially causes no movement of the blade 7. Reaches the driving pin 5, as in Fig. 3 illustrated, at the apex S, the first leg 44, the displacement of the driving pin 5 in the opening 43 in the first leg 44 is continued. Due to the angle α, with which the second leg 45 deviates from the radial course of the first leg 44, the driving pin 5 in the first leg 44 strikes the wall of the opening 43. Characterized the lever arm 4 is moved with the driving pin 5, so that the shaft 2 is set in a rotational movement about the axis of rotation 10 and the blade 7 is opened.

The controlled movement of the blade 7 can be continued up to a lower end position U of the coupling rod 6. In the lower end position U, the blade 7 is in the open state. The positions of the upper and lower end position O and U depends on the desired positions of the blade 7 in the open and closed state and is determined by the configuration of the linear drive 8.

It is possible that the driving pin 5 to reach the lower end position U the imaginary horizontal H happens. When passing the horizontal line H, the driving pin 5 approaches tangentially to the axis of rotation 10. An existing between the axis of rotation 10 and the end of the first leg 44 distance a is therefore stetst chosen so that the first leg 44 does not limit the tangential approach.

In the FIGS. 1 to 3 only one arrangement for moving and locking a blade 7 is shown in each case. It should be clarified here that in a lamellar construction with a plurality of lamellae 7, each lamella 7 is connected to a respective lever arm 4, a driving pin holder 51 and driving pin 5 to the coupling rod 6. For the linearly movable mounting of the coupling rod 6 more slide bearings 61 are present. The number of plain bearings 61 corresponds at least to the number of lamellae 7, wherein the plain bearings 61 are arranged symmetrically between the pivot bearings 10 of the lamellae 7. By the driven coupling rod 6, all the slats 7 of the lamella construction are moved together.

A further embodiment for a lamella construction with a plurality of lamellae 7 is that each lamella 7 on each side with a device for moving and locking according to the FIGS. 1 to 3 is provided. The two coupling rods 6 are then deflected in the lower or upper region of the lamella construction and moved over a single horizontally arranged linear drive.

In the case of a lamella construction with a plurality of lamellae 7, the advantages of the releasable attachment of the driver lug holder 51 to the coupling rod 6 are borne by which an independent adjustment of the individual lamellae 7 is ensured.

LIST OF REFERENCE NUMBERS

1

pivot bearing

10

axis of rotation

11

frame

2

wave

21

first end face

22

second end face

23

Profile extension

3

connector

4

lever arm

41

solid end

42

loose end

43

breakthrough

44

first leg

45

second leg

5

driver pin

51

Mitnehmerzapfenhalter

52

Set screw

6

coupling rod

61

bearings

7

lamella

8th

linear actuator

H

horizontal

O

upper end position

S

Vertex of the angle

U

lower limit position

α

angle

a

Distance between the axis of rotation and the first leg

b

width

r

Radius of the vertex to the axis of rotation

Claims (10)

Arrangement for moving and locking lamellae of a lamella construction containing - A pivot bearing (1) with a rotation axis (10), a shaft (2) rotatably received coaxially in the pivot bearing (1), with a first end face (21) facing the lamella (7) and a second end face (22), a connection piece (3) which is fixedly arranged on the first end face (21) of the shaft (2), - A connecting element which is fixedly arranged on the second end face (22) of the shaft (2) and - means for moving the blade (7), a coupling rod (6) comprising, by means of which the blade (7) is movable, wherein the coupling rod (6) has a connection to the connecting element and to a driving device which has a driving pin (5) and a slot-shaped opening (43) for receiving and guiding the driving pin (5), wherein the opening (43) has an angled end (α) for locking the blade (7) by means of the driving pin (5), characterized in that - The connecting element is a lever arm (4) which is non-rotatably arranged with a fixed end (41) on the second end face (22) of the shaft (2), - The aperture (43) in the lever arm (4) is arranged, - The opening (43) is arranged at a vertex (S) of the angle (α) in a first leg (44) and a straight second leg (45) dividing, wherein the fixed end (41) facing first leg (44 ) is arranged radially to the axis of rotation (10) and to a loose end (42) of the lever arm (4) facing second leg (45) with a closed blade (7) parallel to the coupling rod (6), - The driving pin (5) in the opening (43) of the lever arm (4) engaging on the coupling rod (6) is arranged, and - The coupling rod (6) is guided linearly movable along its axis. Arrangement according to claim 1, characterized in that the angle (α) has a value in the range> 0 ° and <90 °. Arrangement according to claim 1, characterized in that the angle (α) has a value in the range between 30 ° and 60 °. Arrangement according to claim 1, characterized in that a radius (r) between the vertex (S) and the axis of rotation (10) is greater than a minimum distance between the driving pin (5) and the axis of rotation (10). Arrangement according to claim 1, characterized in that a distance between the axis of rotation (10) and the first leg (44) is smaller than the minimum distance between the driving pin (5) and the axis of rotation (10). Arrangement according to claim 1, characterized in that a Mitnehmerzapfenhalter (51) for adjustable attachment of the driving pin (5) on the coupling rod (6) between the coupling rod (6) and the driving pin (5) is arranged. Arrangement according to claim 1, characterized in that slide bearings (61) for the linear guidance of the coupling rod (6) are each arranged symmetrically to the pivot bearings (1). Arrangement according to claim 1, characterized in that in a lamellar construction with a plurality of lamellae (7), each lamella (7) in each case via a lever arm (4) and a driving pin (5) with the coupling rod (6) is arranged in connection standing. Arrangement according to claim 1, characterized in that in a lamellar construction with a plurality of lamellae (7), each lamella (7) on both the left side and the right side via a lever arm (4) and a driving pin (5) with a coupling rod (6) in connection is arranged standing. Arrangement according to claim 9, characterized in that the two coupling rods (6) via Eckumlenkungen with a horizontally arranged linear drive are in communication, so that both coupling rods (6) via a linear drive simultaneously between their end positions (O and U) are movable.

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