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(11) | EP 0 827 564 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
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| (54) |
A MODULAR SEIZING DEVICE FOR SLIDING TRACTION, FOR ROLL-UP SHUTTER BELTS MODULARE GREIFVORRICHTUNG ZUM GLEITEN UND ZIEHEN AN ROLLADENGURTEN DISPOSITIF MODULAIRE DE SERRAGE PERMETTANT D'EXERCER UNE TRACTION SUR LES COURROIES D'ACTIONNEMENT DE VOLETS ROULANTS |
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| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
[0001] The present invention concerns a modular seizing device for sliding traction, for roll-up shutter belts, that automatically hooks the belt, considerably easing the roll-up and shut-down manoeuvres of said roll-up shutters.
[0002] The difficulty in the manual seizing of the belts for performing the traction and sliding of the roll-up and shut-down of the roll-up shutters is well known.
[0003] As it has been learned by common experience, no improvement has been made in the use of roll-up shutters since the invention of the same, in spite of their widespread diffusion.
[0004] For solving above mentioned need, very expensive and complicated electromechanical devices are known, besides the one claimed in document DE 80 13 932 U (Weiss) describing a service handle for roll-up shutters and belts with a blocking system in which a guide is provided open on one side for the insertion of the belt, and a holding bracket connected to a lever which, by means of a spring, operates a blocking device.
[0005] It is the aim of the present invention to facilitate the rolling up and shutting down of the roll-up shutters, providing a comfortable manual seizing that allows to make use of less energy and without performing complicated manoeuvres, due to the automatism of a hooking along the transmission belt, with a device that may be composed around the belts and without blocking levers.
[0006] The aim set forth is reached by means of the device according to the present invention as defined in claim 1, consisting of two structures that may be composed during their installation onto the belt of a roll-up shutter, so as to realize a knob with anatomic grasping crossed by a groove in which said belt slides.
[0007] Inside said groove a recess is performed wherein a manual pressure element is housed which has the function of hooking the belt.
[0008] The evident advantages of the device according to the present invention consist in the extreme easiness, practicalness and efficiency.
[0009] The device according to the present invention will be described more in detail hereinbelow relating to the enclosed drawings which show an embodiment thereof.
[0010] Figure 1 shows an axonometric, transparency view of a modular seizing device for sliding traction, for roll-up shutter belts, that may be installed around the belt of a roll-up shutter.
[0011] Figure 2 shows an exploded axonometric view of the components of the device according to the present invention.
[0012] The enclosed figures show a modular seizing device for sliding traction, for roll-up shutter belts, mainly consisting of:
- two modular structures (1), preferably half-cylindrical or with an anatomic shape, that may be disposed around a belt (C) housed in an internal groove (2) arranged in said structures (1), so as to form a handle, wich is formed by the insertion of small projecting pins (3), provided on an internal face of one of said structures (1), into corresponding holes (4) arranged in the other;
- a pressure element (5) housed inside one of said structures (1) and provided with means for facilitating the gripping of said belt (C) passing inside, like tabs (6) acting by manual pressure so as to enable the squeezing of said belt (C) with the internal shape (8) of the opposite structure;
- a rectangular opening (7), or of other shape, arranged in the surface of one of said structures (1) and through which said pressure element (5) projects without completely coming out, due to the presence of an inclined trapezoidal shape, that defines a stop.
[0013] For what concerns the functioning of the device according to the present invention, the operation of temporary blocking of the belt, necessary for performing the manoeuvres, is obtained by means of manual pressure onto said element 5, so that said tabs 6, taking hold of said belt C by friction, allow the traction thereof; when releasing said element 5, the device may be lifted along said belt C for a further traction phase.
- two modular structures (1), preferably half cylindrical or with an anatomic shape, that may be disposed around a belt (C) housed in an internal groove (2) arranged in said structures (1), so as to form a handle, which is formed by the insertion of small projecting pins (3), provided on an internal face of one of said structures (1), into corresponding holes (4) arranged in the other;
- a pressure element (5) housed inside one of said structures (1) and provided with means for facilitating the gripping of said belt (C) passing inside, like tabs (6) acting by manual pressure so as to enable the squeezing of said belt (C) with the internal shape of the opposite structure;
- a rectangular opening (7), or of other shape, arranged in the surface of one of said structures (1) and through which said pressure element (5) projects without completely coming out, due to the presence of an inclined trapezoidal shape, that defines a stop.
- zwei vorzugsweise halbzylindrische oder gleichförmige, zusainmensetzbare Strukturen (1), die dazu geeignet sind, um einen Riemen (C) angebracht zu werden, der durch eine innere Rille (2) lauft, die in besagter Struktur (1) vorgesehen ist, derart, dass ein Griff ausgebildet wird, der durch Einführung kleiner, nach aussen gebogener Zapfen (3) erhalten wird, die auf einer inneren Seite einer der besagten Strukturen (1) vorhanden sind, und zwar in dementsprechenden Öffnungen (4), die auf der anderen Struktur vorhanden sind;
- ein Druckelement (5), das innerhalb einer der besagten Strukturen vorgesehen und mit Mitteln versehen ist um den Eingriff besagten, im Inneren verlaufenden Riemens (C) zu erleichtern, in der Art von Flügeln (6), wobei dieses Element durch Handdruck wirkt und zwar derart, dass eine Einschnürung des Riemens (C) mit der inneren Ausbildung der gegenüberliegenden Struktur (1) erreicht wird;
- eine rechteckige oder andersförmige Öffnung (7), die auf der Oberflache einer der besagten Strukturen (1) vorgesehen ist und durch welche sich besagtes Druckelement (5) nach aussen biegt, ohne dabei vollständig austreten zu können, und zwar dank der Gegenwart einer Trapezoidahlen, abgeschrägten Ausbildung, die als Sperrung dient.
- deux structures (1) a composer, préférablement demi cylindriques ou conformées, aptes à être disposées autour d'une courroie (C) qui passe à travers d'une cannelure (2) inférieure, réalisée dans dite structure (1), de façon à former une poignée. obtenue au moyen de l'insertion de petites chevilles extroversions (3), présentes sur un coté intérieur d'une de dites structures (1) dans trous (4) correspondants réalisés sur l'autre structure;
- un élément de pression (5) dispose à l'intérieur d'une de dites structures (1) et doté de moyens pour rendre plus facile l'accrochage de dite courroie (C) qui passe à l'intérieur, du type à ailettes (6), qui agit par pression manuelle de façon à obtenir la striction de la courroie (C) avec la conformation intérieure de la structure (1) opposée;
- une ouverture rectangulaire (7) ou d'autre forme, prévue sur la surface d'une de dites structures (1) et au travers de la quelle dit élément de pression (5) s'extrovertis sans pouvoir sortir complètement par la présence d'une conformation trapézoïdale inclinée qui fait fonction d'arrêt,