EP1120540B1 - Shading device - Google Patents
Shading device Download PDFInfo
- Publication number
- EP1120540B1 EP1120540B1 EP01810065A EP01810065A EP1120540B1 EP 1120540 B1 EP1120540 B1 EP 1120540B1 EP 01810065 A EP01810065 A EP 01810065A EP 01810065 A EP01810065 A EP 01810065A EP 1120540 B1 EP1120540 B1 EP 1120540B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- shading
- locking member
- lifting member
- actuating element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
Definitions
- the invention relates to a shading device with two spaced-apart guide rails on which at least one shading element is movable and with a fall protection having a locking member which is pivoted in case of failure of an elevator organ from a rest position to a blocking position and in this blocking position, the shading element in clamped a guide rail, wherein an actuating element is held by means of the elevator body and by the weight of the shading element against a force in a rest position and the failure of the elevator member, the actuator by the force and with this the locking member are moved to the blocking position.
- the actuating force simultaneously reduces the dead weight of the shading element and thus the personal injury risk.
- roller doors and rolling grilles which have a fall protection, which have a pivotable locking member which is held by an elevator member in an inoperative position.
- the locking member In case of failure and especially when tearing the elevator body, the locking member is pivoted by spring force into the blocking position.
- the shading element or a door is jammed in at least one guide rail and can not fall down and in particular be dangerous for operators. Since gates and shading elements are relatively heavy, such fall protection often mandatory.
- a fall protection shows the DE-A-19503588 comprising a spring-loaded pawl, which is arranged on a bearing part, around which the pulling rope is laid.
- tensioned tension cable of the bearing part is fixed and accordingly the pawl in an inoperative position. If the pull rope breaks, the bearing part becomes free and the pawl is pivoted by a spring force and jammed with a guide rail.
- Another fall protection has become known, in which between two plates a locking lever is pivotally mounted. Below this lever engages a support rod in a vertically extending slot and tensioned as a result of their own weight a spring. In the event of a cable break, this spring relaxes and moves the support rod relative to the two plates, whereby the locking lever is pivoted to a clamping position.
- each lateral guide rail of a gate running fall protection has an O-shaped clamp, at its upper end an elevator member is attached and which is provided at the lower end with an inwardly facing locking pin.
- On the side legs of the O-shaped clamp a locking block is slidably guided, on which the gate is mounted.
- the locking block also has a transversely to the guide rails of the door linearly displaceable arranged locking member.
- the guide rails have longitudinally spaced openings for receiving the obturator.
- a tension spring which is arranged between the upper end of the O-shaped clamp and the locking block, the locking block, including the locking member from the locking pin. Thereafter, the compression spring presses the slider-like locking member against the guide rail until the locking member engages in an opening of the guide rail.
- the invention has for its object to provide a shading device of the type mentioned, which is provided with a fall protection and which is structurally simple and yet reliable.
- the object is achieved in a shading device of the type mentioned in that the locking member is mounted on the shading element and the actuating element is held by means of a driver of the elevator body in a cocked position.
- the shading device according to the invention has the advantage that the weight of the shading element is reduced by the actuator. Another advantage is also seen that the elevator organ does not have to be firmly connected to the shading element. This facilitates the assembly significantly. During a revision or repair, the shading element very easy to be disconnected from the elevator.
- the shading device according to the invention can also be realized with a few and robust parts.
- the actuating element is a bolt which is mounted displaceably on the shading element. With the driver of the elevator body this bolt can be held in a cocked position. To tension a compression spring is preferably used, which is arranged in a bore of the shading element. In case of failure of the elevator body, the action of the driver is canceled and the bolt is moved by the force of the spring down. By this movement of the bolt, the locking member is pivoted and thereby brought into the blocking position.
- FIG. 1 shows a shading device with two vertically extending and spaced apart guide rails 6, only one of which is shown here in sections.
- a shading element 7 for example, a sliding shutter with slats is mounted vertically displaceable. This movement of the shading element 7 takes place with a winding shaft 2 merely indicated here, which is rotatable in the directions of the double arrow 20 with a controlled motor, not shown here.
- a driver 4 is arranged, which is firmly connected, for example by means of a clamping plate 5 with the lower end of an elevator member 3.
- the elevator member 3 is for example a band, for example a steel band. But here is another elevator organ, such as a chain or a rope conceivable.
- the elevator member 3 is fixed at its upper end to the winding shaft 2. When turning the winding shaft 2 thus the driver 4 is raised or lowered in the channel 11.
- the two drivers 4 each abut with an upper surface 4a on an underside 12a of a carrier 12 (which forms a locking block).
- These supports 12 are each a part of the shading element 7 and also arranged in a channel 11. If the two drivers 4 are vertically displaced in the guide rails 6, then the element 7 is correspondingly moved upwards or downwards.
- the shading element 7 loads in each case with its entire weight on the two drivers. 4
- a bolt 18 is mounted in a through hole 16, at its lower end a head 18 a and to its upper end on an external thread 18b has two nuts 19.
- the bolts 18 each lie with their head 18a on a surface 4a of a driver 4.
- the bolts 18 are held against the retroactive force of a compression spring 17 in the position shown in Figure 1.
- the compressive force of the springs 17 is substantially smaller than the weight of the shading element 7.
- the forces of the two springs 17 thus can not lift the shading element 7 of the two drivers 4.
- the weight of the shading element 7 will decrease, ie this can be raised according to the forces of the springs 17 with reduced force. This is very advantageous for safety reasons, since a lowering of the shading element 7 does not load this on an accidentally clamped part with full weight.
- a blocking member 13 is mounted in each case, which is a two-armed lever and which is pivotally mounted about an axis 14.
- One arm 13a of the blocking member 13 is located in the effective region of the bolt 18.
- the other, longer arm 13b is provided with a plurality of teeth 15. If the bolt 18 is in the cocked position shown in FIG. 1, then the blocking member 13, as can be seen, is inclined to the horizontal. The blocking member 13 is in a rest position and the shading element 7 can be moved in the guide rails 16 without resistance.
Abstract
Description
Die Erfindung betrifft eine Beschattungsvorrichtung mit zwei im Abstand zueinander angeordneten Führungsschienen, an denen wenigstens ein Beschattungselement verfahrbar ist und mit einer Absturzsicherung, die ein Sperrorgan aufweist, das beim Versagen eines Aufzugsorgans von einer Ruhestellung in eine Sperrstellung verschwenkt wird und in dieser Sperrstellung das Beschattungselement in einer Führungsschiene verklemmt, wobei ein Stellelement mittels des Aufzugsorgans und durch das Eigengewicht des Beschattungselementes gegen eine Stellkraft in einer Ruhestellung gehalten wird und beim Versagen des Aufzugsorgans das Stellelement durch die Stellkraft und mit diesem das Sperrorgan in die Sperrstellung bewegt werden. Die Stellkraft reduziert gleichzeitig das Eigengewicht des Beschattungselementes und somit das Personenschadenrisiko.The invention relates to a shading device with two spaced-apart guide rails on which at least one shading element is movable and with a fall protection having a locking member which is pivoted in case of failure of an elevator organ from a rest position to a blocking position and in this blocking position, the shading element in clamped a guide rail, wherein an actuating element is held by means of the elevator body and by the weight of the shading element against a force in a rest position and the failure of the elevator member, the actuator by the force and with this the locking member are moved to the blocking position. The actuating force simultaneously reduces the dead weight of the shading element and thus the personal injury risk.
Im Stand der Technik sind Beschattungsvorrichtungen sowie Tore, Rolltore und Rollgitter bekannt, die eine Absturzsicherung aufweisen, die ein schwenkbares Sperrglied besitzen, das durch ein Aufzugsorgan in einer unwirksamen Stellung gehalten wird. Beim Versagen und insbesondere beim Reissen des Aufzugsorgans wird das Sperrglied durch Federkraft in die Sperrstellung verschwenkt. Dadurch wird das Beschattungselement oder ein Tor in wenigstens einer Führungsschiene verklemmt und kann nicht nach unten fallen und insbesondere für Bedienungspersonen gefährlich werden. Da Tore und Beschattungselemente vergleichsweise schwer sind, sind solche Absturzsicherungen häufig zwingend erforderlich.In the prior art shading devices and gates, roller doors and rolling grilles are known which have a fall protection, which have a pivotable locking member which is held by an elevator member in an inoperative position. In case of failure and especially when tearing the elevator body, the locking member is pivoted by spring force into the blocking position. As a result, the shading element or a door is jammed in at least one guide rail and can not fall down and in particular be dangerous for operators. Since gates and shading elements are relatively heavy, such fall protection often mandatory.
Eine Absturzsicherung zeigt beispielsweise die
Eine weitere Absturzsicherung ist in
Der Erfindung liegt die Aufgabe zugrunde, eine Beschattungsvorrichtung der genannten Art zu schaffen, die mit einer Absturzsicherung versehen ist und die konstruktiv einfacher ausgebildet und dennoch funktionssicher ist.The invention has for its object to provide a shading device of the type mentioned, which is provided with a fall protection and which is structurally simple and yet reliable.
Die Aufgabe ist bei einer Beschattungsvorrichtung der genannten Art dadurch gelöst, dass das Sperrorgan am Beschattungselement gelagert ist und das Stellelement mittels eines Mitnehmers des Aufzugsorgans in einer gespannten Stellung gehalten wird. Die erfindungsgemässe Beschattungsvorrichtung hat den Vorteil, dass das Gewicht des Beschattungselementes durch das Stellglied vermindert wird. Ein weiterer Vorteil wird auch dahin gesehen, dass das Aufzugsorgan nicht fest mit dem Beschattungselement verbunden werden muss. Dies erleichtert die Montage wesentlich. Bei einer Revision oder Reparatur kann das Beschattungselement sehr einfach vom Aufzugsorgan getrennt werden. Die Beschattungsvorrichtung gemäss der Erfindung lässt sich zudem mit wenigen und robusten Teilen realisieren.The object is achieved in a shading device of the type mentioned in that the locking member is mounted on the shading element and the actuating element is held by means of a driver of the elevator body in a cocked position. The shading device according to the invention has the advantage that the weight of the shading element is reduced by the actuator. Another advantage is also seen that the elevator organ does not have to be firmly connected to the shading element. This facilitates the assembly significantly. During a revision or repair, the shading element very easy to be disconnected from the elevator. The shading device according to the invention can also be realized with a few and robust parts.
Eine besonders konstruktiv einfache Herstellung ist dann gewährleistet, wenn gemäss einer Weiterbildung der Erfindung das Stellelement ein Bolzen ist, der am Beschattungselement verschiebbar gelagert ist. Mit dem Mitnehmer des Aufzugsorgans kann dieser Bolzen in einer gespannten Position gehalten werden. Zur Spannung wird vorzugsweise eine Druckfeder verwendet, die in einer Bohrung des Beschattungselementes angeordnet ist. Bei einem Versagen des Aufzugsorgans ist die Wirkung des Mitnehmers aufgehoben und der Bolzen wird durch die Kraft der Feder nach unten bewegt. Durch diese Bewegung des Bolzens wird das Sperrorgan verschwenkt und dadurch in die Sperrstellung gebracht.A particularly simple construction is ensured if, according to one embodiment of the invention, the actuating element is a bolt which is mounted displaceably on the shading element. With the driver of the elevator body this bolt can be held in a cocked position. To tension a compression spring is preferably used, which is arranged in a bore of the shading element. In case of failure of the elevator body, the action of the driver is canceled and the bolt is moved by the force of the spring down. By this movement of the bolt, the locking member is pivoted and thereby brought into the blocking position.
Weitere vorteilhafte Merkmale ergeben sich aus den abhängigen Patentansprüchen, der nachfolgenden Beschreibung sowie der Zeichnung.Further advantageous features emerge from the dependent claims, the following description and the drawings.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:
Figur 1- schematisch eine Teilansicht der erfindungsgemässen Beschattungsvorrichtung,
Figur 2- ein Schnitt durch die Beschattungsvorrichtung entlang der Linie II-II der
Figur 1, Figur 3- eine Teilansicht gemäss
Figur 1, jedoch mit dem Sperrorgan in der Sperrstellung und - Figur 4
- ein Schnitt durch die Beschattungsvorrichtung entlang der Linie IV-IV der
Figur 2.
- FIG. 1
- 1 is a schematic partial view of the shading device according to the invention,
- FIG. 2
- a section through the shading device along the line II-II of Figure 1,
- FIG. 3
- a partial view according to Figure 1, but with the locking member in the locked position and
- FIG. 4
- a section through the shading device along the line IV-IV of Figure 2.
Die Figur 1 zeigt eine Beschattungsvorrichtung mit zwei vertikal verlaufenden und im Abstand zueinander angeordneten Führungsschienen 6, wobei hier lediglich die eine abschnittsweise gezeigt ist. In diesen Schienen 6 ist ein Beschattungselement 7, beispielsweise ein Schiebeladen mit Lamellen vertikal verschiebbar gelagert. Diese Bewegung des Beschattungselementes 7 erfolgt mit einer hier lediglich angedeuteten Wickelwelle 2, die mit einem hier nicht gezeigten gesteuerten Motor in den Richtungen des Doppelpfeiles 20 drehbar ist.1 shows a shading device with two vertically extending and spaced apart
In jedem Kanal 11 der beiden Führungsschienen 6 ist ein Mitnehmer 4 angeordnet, der beispielsweise mittels einer Klemmplatte 5 mit dem unteren Ende eines Aufzugsorgans 3 fest verbunden ist. Das Aufzugsorgan 3 ist beispielsweise ein Band, beispielsweise ein Stahlband. Es ist hier aber auch ein anderes Aufzugsorgan, beispielsweise eine Kette oder ein Seil denkbar. Das Aufzugsorgan 3 ist an seinem oberen Ende an der Wickelwelle 2 befestigt. Beim Drehen der Wickelwelle 2 wird somit der Mitnehmer 4 im Kanal 11 angehoben oder abgesenkt.In each
Die beiden Mitnehmer 4 liegen jeweils mit einer oberen Fläche 4a an einer Unterseite 12a eines Trägers 12 an (der einen Verriegelungsblock bildet). Diese Träger 12 sind jeweils ein Teil des Beschattungselementes 7 und ebenfalls in einem Kanal 11 angeordnet. Werden die beiden Mitnehmer 4 in den Führungsschienen 6 vertikal verschoben, so wird entsprechend das Element 7 nach oben oder nach unten bewegt. Das Beschattungselement 7 lastet jeweils mit seinem gesamten Gewicht auf den beiden Mitnehmern 4.The two drivers 4 each abut with an upper surface 4a on an underside 12a of a carrier 12 (which forms a locking block). These
In jedem Träger 12 ist in einer Durchgangsbohrung 16 ein Bolzen 18 gelagert, der an seinem unteren Ende einen Kopf 18a und an seinem oberen Ende auf einem Aussengewinde 18b zwei Muttern 19 aufweist. Wie die Figur 1 zeigt, liegen die Bolzen 18 jeweils mit ihrem Kopf 18a auf einer Fläche 4a eines Mitnehmers 4 auf. Die Bolzen 18 werden gegen die rückwirkende Kraft einer Druckfeder 17 in der in Figur 1 gezeigten Stellung gehalten. Die Druckkraft der Federn 17 ist wesentlich kleiner als das Gewicht des Beschattungselementes 7. Die Kräfte der beiden Federn 17 vermögen somit das Beschattungselement 7 nicht von den beiden Mitnehmern 4 anzuheben. Durch die Kraft der beiden Federn 17 wird jedoch das Gewicht des Beschattungselementes 7 verringern, d.h. dieses kann entsprechend den Kräften der Federn 17 mit verminderter Kraft angehoben werden. Dies ist aus Sicherheitsgründen sehr vorteilhaft, da ein Senken des Beschattungselementes 7 dieses auf einem versehentlich eingeklemmten Teil nicht mit vollem Gewicht lastet.In each
An den beiden Trägern 12 ist jeweils ein Sperrorgan 13 gelagert, das ein zweiarmiger Hebel ist und das um eine Achse 14 schwenkbar gelagert ist. Der eine Arm 13a des Sperrorgans 13 befindet sich im Wirkbereich des Bolzens 18. Der andere, längere Arm 13b ist mit mehreren Zähnen 15 versehen. Befindet sich der Bolzen 18 in der in Figur 1 gezeigten gespannten Position, so ist das Sperrorgan 13, wie ersichtlich, zur Horizontalen geneigt. Das Sperrorgan 13 ist in einer Ruhestellung und das Beschattungselement 7 kann in den Führungsschienen 16 ohne Widerstand verschoben werden.On the two
Im Fall eines Versagens, beispielsweise bei einem Riss eines Aufzugsorgans 3 übt das entsprechende Aufzugsorgan 3 auf seine Mitnehmer 4 keine Zugkraft aus. Der entsprechende Mitnehmer 4 ist somit lose und durch die Spannkraft der entsprechenden Feder 17 wird nun der Bolzen 18 in der Bohrung 16 sofort nach unten bewegt. Da sich das Sperrorgan 13a im Wirkbereich des Bolzens 18 befindet, wird durch die Muttern 19 dieses Sperrorgan 13 in Gegenuhrzeigersinn in die in den Figuren 3 und 4 gezeigte Sperrposition verschwenkt. Die Zähne 15 gelangen hierbei an eine vertikal verlaufende Rippe eines der beiden Führungsschienen 13 und graben sich in diese Rippe 9 ein. Dadurch wird das Sperrorgan 13 in der Führungsschiene 6 verklemmt und kann sich im Kanal 11 nicht weiter verschieben. Da das Sperrorgan 13 am Beschattungselement 7 befestigt ist, wird entsprechend das Beschattungselement 7 an der entsprechenden Führungsschiene 6 fixiert. Damit ist sofort eine weitere Fallbewegung des Beschattungselementes 7 verhindert.In the case of a failure, for example in a crack of an
Claims (10)
- A shading device with two spaced-apart guide rails (6), along which at least one shading element (7) is able to travel, and with a drop prevention means (8) comprising a locking member (13) which, in the event of failure of a lifting member (3), is pivoted from a rest position into a locking position and clamps the shading element (7) in at least one guide rail (6) in this locking position, wherein an actuating element (18) is held by means of the lifting member (3) and by the weight of the shading element (7) in a rest position against an actuating force and, in the event of failure of the lifting member (3), the actuating element (18) and the locking member (13) are moved into the locking position by the actuating force, characterized in that the locking member (13) and the actuating element (18) are mounted on a locking block (12) of the shading element (7), and the actuating element (18) bears on a driver (4) of the lifting member (3) and is thus in a tensioned position.
- Device according to Claim 1, characterized in that the lifting member (3) is provided at a lower end with the said driver (4), and the actuating element (18) is held in the said tensioned rest position against the reactive force of a spring element (17) owing to the tensioning of the lifting member (3) by means of the driver (4).
- Device according to Claim 1 or 2, characterized in that the actuating force of the spring element (17) counteracts the weight of the shading element (7) so as to avoid injury to persons.
- Device according to one of Claims 1 to 3, characterized in that the actuating element (18) is mounted in a downwardly open recess (16) of the locking block (12), and the driver (4) bears against this recess (16).
- Device according to one of Claims 1 to 4, characterized in that the actuating element (18) is a bolt which, in the event of failure of the lifting member (3), is moved vertically downwards and in so doing acts on the locking member (13) and pivots it about a horizontal pivot axis (14) into the locking position.
- Device according to one of Claims 1 to 5, characterized in that the actuating element (18) is engaged at an upper end with the locking member (13).
- Device according to one of Claims 1 to 6, characterized in that the locking member (13) is a two-armed lever which is provided at one end with a plurality of teeth (15) which can be pivoted against a vertically extending rib (9) of a guide rail (6).
- Device according to one of Claims 1 to 7, characterized in that the locking member (13) is arranged in a guide channel (11) of one of the two guide rails (6).
- Device according to one of Claims 1 to 8, characterized in that the locking member (13) can be pivoted in a plane which extends substantially vertically to a winding shaft (2).
- Device according to Claim 9, characterized in that the lifting member (3) comprises a tape which can be wound at an upper end by means of the winding shaft (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1762000 | 2000-01-28 | ||
CH176002000 | 2000-01-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1120540A2 EP1120540A2 (en) | 2001-08-01 |
EP1120540A3 EP1120540A3 (en) | 2003-06-25 |
EP1120540B1 true EP1120540B1 (en) | 2007-07-18 |
Family
ID=4426801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01810065A Expired - Lifetime EP1120540B1 (en) | 2000-01-28 | 2001-01-24 | Shading device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1120540B1 (en) |
AT (1) | ATE367505T1 (en) |
DE (1) | DE50112729D1 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1018367A (en) * | 1950-04-11 | 1953-01-07 | Fossier Soc | Device for closing berries |
FR2625251B1 (en) * | 1987-12-28 | 1992-03-13 | Gonzalez Luis Rodriguez | PORTAL BRAKE |
-
2001
- 2001-01-24 AT AT01810065T patent/ATE367505T1/en active
- 2001-01-24 EP EP01810065A patent/EP1120540B1/en not_active Expired - Lifetime
- 2001-01-24 DE DE50112729T patent/DE50112729D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50112729D1 (en) | 2007-08-30 |
EP1120540A2 (en) | 2001-08-01 |
EP1120540A3 (en) | 2003-06-25 |
ATE367505T1 (en) | 2007-08-15 |
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