EP0275509A2 - Apparatus with a blocking ring for roll-up doors - Google Patents
Apparatus with a blocking ring for roll-up doors Download PDFInfo
- Publication number
- EP0275509A2 EP0275509A2 EP87118797A EP87118797A EP0275509A2 EP 0275509 A2 EP0275509 A2 EP 0275509A2 EP 87118797 A EP87118797 A EP 87118797A EP 87118797 A EP87118797 A EP 87118797A EP 0275509 A2 EP0275509 A2 EP 0275509A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pawl
- brake wheel
- clamping ring
- housing
- safety device
- 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.)
- Granted
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Classifications
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- 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 safety device for securing rolling gates, rolling grilles and other rollable gate closures, with a brake wheel arranged on the winding shaft in a rotationally fixed manner, in the event of an unwanted unwinding of the winding shaft on the brake wheel acting brake body and the housing fixed relative to the winding shaft.
- a known safety device (DE-GM 82 25 405) is designed as a ball locking mechanism that works as a function of flying force and is completely independent of the worm gear.
- the worm drive is usually arranged at one end and the safety gear at the other end of the winding shaft.
- the execution of the safety device as a ball lock on the one hand as a device independent of the worm gear on the other hand is relatively expensive. In principle, this also applies to the safety device for roller doors according to DE-PS 24 41 522.3.
- the brake wheel referred to as the ratchet wheel is equipped with spaces in which balls are arranged, which are pressed against the edge of the gear housing when the winding shaft is correspondingly accelerated, in which a recess is provided in which the first ball is pressed accordingly then, due to the dimensioning of the recess and the ball, is pressed into the narrowing slot between the housing and the ratchet wheel in order to block the winding shaft.
- the invention has for its object to provide a safety device that is simple in construction, always responsive and ensures surface braking.
- the brake wheel has sawtooth-shaped, evenly distributed over the circumference recesses and that the brake body is designed as an asymmetrical clamping ring and can be connected to the brake wheel via an articulated pawl when unwanted, too fast rolling.
- Such a safety device works completely trouble-free in normal operation, because the pawl is held in a position via the brake wheel which prevents a response. Only when the brake wheel turns too fast does the pawl come into contact with the brake wheel itself in such a way that it engages in one of the recesses and thereby brakes the brake wheel in such a way that it ensures that the asymmetrical clamping ring brakes the brake wheel flatly along with it becomes. The clamping ring thus comes into a clamping position, which ensures that the brake wheel is securely caught or braked. Due to the flat braking, i.e. the flat rubbing of the clamping ring on the housing wall, the brake wheel brakes very quickly and uniformly. The brake wheel thus acts practically as a trigger wheel, while the clamping ring takes over the function of the brake body.
- the pawl is arranged by the brake wheel at intervals corresponding to the recesses being rocked up into the locking position. This rocking up is caught again by the next sawtooth, so that the pawl does not engage in the recess during normal operation, on the other hand if the brake wheel is turned too quickly, the more securely.
- the pawl Once the pawl has engaged in a recess, it ensures that the clamping ring is pulled or pressed securely into the space between the brake wheel and the housing due to its asymmetrical design. In this way, very high forces are exerted and absorbed.
- a rapid wedging of the clamping ring is ensured in particular by the fact that the pawl is mounted in the clamping ring, specifically in the thickest clamping ring, the clamping ring with its thickest clamping ring being arranged pointing towards the bottom of the housing.
- This position forces the above-mentioned rocking action of the pawl, which due to its special design repeatedly tries to come out of the locked position, but is always prevented from doing so by the individual saw teeth of the brake wheel.
- the respective rocking of the pawl is further ensured in a simple and expedient manner in that the pivot point of the pawl is formed off-center of the arc-shaped pawl.
- the pawl has a shorter and a longer arm as seen from the pivot point, so that due to the weight it always tries to get into the lower position, but is carried along by the teeth and pushed up with the tip.
- the pawl In order to prevent wear of the end of the pawl that is stressed by the teeth of the brake wheel, ie to prevent wear of the shorter arm, is provided according to an appropriate training that the pawl is equipped on the shorter arm end with a rotatably arranged roller. This role therefore ensures that the tooth that hits it can neither produce wear nor wear itself. If the pawl is thrown up when the brake wheel is running too fast or too fast, the engagement in the respective recess can be reached safely, since the pawl on the longer arm has a tip which fits into the recesses in the brake wheel.
- This tip is expediently designed in accordance with the shape of the recesses, so that when it engages in the recess it has a secure fit and thus in turn takes the clamping ring securely with it or ensures that it is carried along by the brake wheel and into the slot between the brake wheel and housing slips in. Due to the design of the clamping body as a clamping ring, it is also ensured that the quality of the clamping body is almost insignificant for the action of the safety gear, because the clamping ring is always drawn or pressed into the slot in a wedge shape due to its design and thereby automatically leads to braking.
- the pawl is advantageously arranged securely, for which the invention provides that the clamping ring in the region of the clamping ring seal has a circumferential incision in which the pawl is tiltably mounted. It is therefore no longer possible to influence the jack from the outside after installation.
- the clamping ring is assigned to the bottom of the housing with the thickest clamping ring, which has already been explained above.
- the invention provides that the clamping ring is releasably connected to the housing via a pin. If the braking action occurs due to the engagement of the pawl, the resistance becomes this pin easily overcome, while the pin ensures during normal operation that the clamping ring remains in the optimal starting position.
- the housing is the gear housing, because it can then be integrated with the gear designed as a slip-on gear. If, on the other hand, the gear is arranged below or above the winding shaft and connected to it, for example via a chain, the housing is designed separately so that it automatically acts as a brake shoe when the suspension element breaks.
- the pawl is influenced evenly by the brake wheel and kept in a kind of suspended state, since according to an appropriate design the saw teeth formed by the recesses on the outer circumference of the brake wheel are evenly distributed and that the pawl is dimensioned such that at least three saw teeth each pawl cover.
- the pawl is pushed up again and again without the risk that it will be practically flung up by a too large distance between the saw teeth and can therefore come into the braking position.
- the sawtooth stressed by the pawl is relieved in that the inner edge of the clamping ring is roughened in the region of the pawl and in the direction of rotation or has unevenness.
- the saw teeth following or upstream of the claimed saw tooth engage securely in the braking process and also ensure that the clamping ring is quickly pushed into the wedge position.
- the necessary asymmetry of the clamping ring is advantageously achieved in that the center of the circle forming the inner edge lies slightly, preferably 5 mm below the circle forming the outer edge. This results in a uniform wedge that optimally slides into the existing gap and very quickly leads to the braking of the brake wheel.
- the invention is particularly characterized in that in the event of a suspension element breakage, the braking process is initiated very quickly in that the pawl engages in the toothing of the brake wheel and thereby displaces the clamping ring in the direction of fall so that wedging between the clamping ring and the brake wheel or clamping ring and housing occurs.
- unintentional braking of the brake wheel and thus the winding shaft by the pawl is prevented because the pawl tries to tip out of the locked position due to its design.
- the pawl is repeatedly prevented from doing so because the saw teeth running slowly over it presses onto the end that carries a roller and thus the shorter arm of the pawl.
- the pawl When the brake wheel is running fast, on the other hand, the pawl is thrown up so that it engages in one of the recesses in the brake wheel and then brings about the braking process for a short time. It is particularly advantageous that, due to the flat braking and the special design of the individual parts, it is possible to switch to die-cast zinc or brass, with no special machining of the brake wheel or the other parts being necessary. The shape and the special design and arrangement of the individual parts ensures and ensures that the winding shaft is braked quickly if the suspension element breaks or the like. Damage.
- the safety device (1) shown in the figures is designed here as a safety device integrated in the slip-on gear.
- a brake wheel (4) is slid onto the winding shaft (2), which is arranged to rotate in the housing (3), which is designed like a saw wheel and to which a specially shaped brake body is assigned.
- the direction of rotation of the brake wheel (4) is designated (6).
- the brake wheel (4) Distributed over the circumference of the brake wheel (4), it has recesses (9, 10) which are arranged and formed uniformly and form saw teeth (11, 12) pointing in the direction of rotation (6).
- a clamping ring (13) is arranged in an asymmetrical design. With its thickest clamping ring (14), it is arranged pointing in the direction of the bottom (15) of the housing (3) and equipped with a pawl (16) which can be pivoted about the pivot point (17).
- the pawl (16) has a longer arm (17) and one shorter arm (19). At the free end of the shorter arm (19), a roller (20) is rotatably arranged, the saw tooth (12) rotating past acting on this roller (20) and ensuring that the pawl (16) due to its longer arm (18 ) cannot drop or fall. Rather, the tip (21) of the longer arm (18), which is adapted to the shape of the recesses (9, 10), is pivoted into the position shown in FIG. 1, in order to then sink again to the next sawtooth (11) and thereby let the next sawtooth pass. The tip (21) is thus raised and lowered when the winding shaft (2) and thus the brake wheel (4) are turned slowly, without the pawl (16) engaging with one of the recesses (9, 10) with its tip (21) can.
- the pawl (16) is swiveled up or rocked up by the saw teeth (11 or 12) striking with appropriate force, so that the tip (21) engages in one of the recesses (9, 10) and thereby causes the clamping ring (13) to be pulled or pressed together.
- the clamping ring (13) is in the direction of the arrow, i.e. shifted in the direction of rotation (6) so that wedging occurs between the brake wheel (4) and the clamping ring (13).
- the brake wheel (4) and thus the winding shaft (2) are fixed in the shortest possible way and the suspension element breakage can be remedied.
- Fig. 4 also illustrates the asymmetrical design of the clamping ring and shows that on the inner edge (29) bumps (30) are provided, which the Carrying the clamping ring (13) by the individual saw teeth (11, 12) facilitates or additionally ensures in the event of a suspension element breakage.
- the notch (27) for the pin (28) is provided in the outer edge (26).
- the pivot point is designated by (17) about which the pawl (16) used can rock.
- FIG. 5 shows the clamping ring (13) in plan view, it being clear here that and how the incision (23) is provided, in which the pawl (16) is used.
- bores (22, 31) are provided in the clamping ring (13), into which the pawl (16) with its bolts (24, 25) can be inserted, so that they can be easily moved around the pivot point (17th ) pivots.
- the upper part of FIG. 6 illustrates how the roller (20) is arranged on the shorter arm (19).
Abstract
Description
Die Erfindung betrifft eine Fangvorrichtung zur Sicherung von Rolltoren, Rollgittern und sonstigen rollbaren Torverschlüssen, mit einem auf der Wickelwelle drehfest angeordneten Bremsrad, bei ungewolltem Abrollen der Wickelwelle auf das Bremsrad einwirkendem Bremskörper und dem gegenüber der Wickelwelle feststehenden Gehäuse.The invention relates to a safety device for securing rolling gates, rolling grilles and other rollable gate closures, with a brake wheel arranged on the winding shaft in a rotationally fixed manner, in the event of an unwanted unwinding of the winding shaft on the brake wheel acting brake body and the housing fixed relative to the winding shaft.
Derartige Fangvorrichtungen dienen dazu, bei Unglücksfällen unkontrolliert ablaufenden Rolltoren diese rechtzeitig abzubremsen bzw. ein unkontrolliertes Abrollen dann zu verhindern, wenn das die Wickelwelle normalerweise bremsende Schneckenrad abgenutzt ist. Eine bekannte Fangvorrichtung (DE-GM 82 25 405) ist als Fliegkraft abhängig arbeitendes Kugelgesperre ausgeführt, das konstruktiv vom Schneckentrieb vollkommen unabhängig ist. In der Praxis wird der Schneckentrieb zumeist an einem Ende und die Fangvorrichtung am anderen Ende der Wickelwelle angeordnet. Die Ausführung der Fangvorrichtung als Kugelsperre einerseits als vom Schneckentrieb unabhängiges Gerät andererseits ist verhältnismäßig aufwendig. Im Prinzip gilt dies auch für die Sicherungsvorrichtung für Rolltore nach der DE-PS 24 41 522.3. Hier ist das als Sperr-Rad bezeichnete Bremsrad mit Räumen ausgerüstet, in denen Kugeln angeordnet sind, die bei entsprechender Beschleunigung der Wickelwelle gegen den Rand des Getriebegehäuses gedrückt werden, in dem eine Ausnehmung vorgesehen ist, in dem entsprechend die erste Kugel hineingedrückt wird, die dann aufgrund der Bemessung der Ausnehmung und der Kugel in den schmaler werdenden Schlitz zwischen Gehäuse und Sperr-Rad hineingedrückt wird, um die Wickelwelle zu blockieren.Such safety devices are used to slow down uncontrolled rolling gates in the event of accidents or to prevent uncontrolled rolling when the worm wheel normally braking the winding shaft is worn out. A known safety device (DE-GM 82 25 405) is designed as a ball locking mechanism that works as a function of flying force and is completely independent of the worm gear. In practice, the worm drive is usually arranged at one end and the safety gear at the other end of the winding shaft. The execution of the safety device as a ball lock on the one hand as a device independent of the worm gear on the other hand is relatively expensive. In principle, this also applies to the safety device for roller doors according to DE-PS 24 41 522.3. Here, the brake wheel referred to as the ratchet wheel is equipped with spaces in which balls are arranged, which are pressed against the edge of the gear housing when the winding shaft is correspondingly accelerated, in which a recess is provided in which the first ball is pressed accordingly then, due to the dimensioning of the recess and the ball, is pressed into the narrowing slot between the housing and the ratchet wheel in order to block the winding shaft.
Abgesehen davon, daß eine derartige Fangvorrichtung aufwendig baut und genau bearbeitet werden muß, um den die Kugel sperrenden Schlitz zu gewährleisten, ist von Nachteil, daß bei einer derartigen Fangvorrichtung jeweils nur eine punktförmige, allenfalls linienförmige Abbremsung erfolgen kann. Die Kugel muß dabei, um eine Zerstörung der Kugel und damit einer Aufhebung der Bremswirkung zu verhindern, aus entsprechend hartem und widerstandsfähigem Material gefertigt werden.In addition to the fact that such a safety gear is complex and must be machined precisely to ensure the slot blocking the ball, it is disadvantageous that in such a safety gear only a punctiform, possibly linear braking can take place. The ball must be made of a correspondingly hard and resistant material in order to prevent the ball from being destroyed and thus the braking effect from being canceled.
Der Erfindung liegt die Aufgabe zugrunde, eine im Aufbau einfache, immer sicher ansprechende und eine flächenmäßige Abbremsung gewährleistende Fangvorrichtung zu schaffen.The invention has for its object to provide a safety device that is simple in construction, always responsive and ensures surface braking.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Bremsrad sägezahnförmige, gleichmäßig über den Umfang verteilt angeordnete Ausnehmungen aufweist und daß der Bremskörper als asymmetrischer Klemmring ausgebildet ist und über eine schwenkbar angeordnete Klinke bei ungewolltem, zu schnellem Abrollen mit dem Bremsrad verbindbar ist.The object is achieved in that the brake wheel has sawtooth-shaped, evenly distributed over the circumference recesses and that the brake body is designed as an asymmetrical clamping ring and can be connected to the brake wheel via an articulated pawl when unwanted, too fast rolling.
Eine derartige Fangvorrichtung arbeitet bei normalem Betrieb vollständig störungsfrei, weil die Klinke über das Bremsrad jeweils in einer Position gehalten wird, die ein Ansprechen unterbindet. Erst wenn das Bremsrad zu schnell dreht, kommt die Klinke mit dem Bremsrad selbst so in Verbindung, daß sie in eine der Ausnehmungen eingreift und dadurch das Bremsrad dadurch abbremst, daß es dafür Sorge trägt, daß der asymmetrische Klemmring das Bremsrad flächig abbremsend von diesem mitgenommen wird. Der Klemmring kommt dadurch in eine Klemmposition, die ein sicheres Einfangen bzw. Abbremsen des Bremsrades absichert. Aufgrund der flächigen Abbremsung, d.h. des flächigen Reibens des Klemmringes auf der Gehäusewandung, kommt es zu einem sehr schnellen und gleichförmigen Abbremsen des Bremsrades. Das Bremsrad wirkt hier somit praktisch als Auslöserad, während der Klemmring die Funktion des Bremskörpers übernimmt.Such a safety device works completely trouble-free in normal operation, because the pawl is held in a position via the brake wheel which prevents a response. Only when the brake wheel turns too fast does the pawl come into contact with the brake wheel itself in such a way that it engages in one of the recesses and thereby brakes the brake wheel in such a way that it ensures that the asymmetrical clamping ring brakes the brake wheel flatly along with it becomes. The clamping ring thus comes into a clamping position, which ensures that the brake wheel is securely caught or braked. Due to the flat braking, i.e. the flat rubbing of the clamping ring on the housing wall, the brake wheel brakes very quickly and uniformly. The brake wheel thus acts practically as a trigger wheel, while the clamping ring takes over the function of the brake body.
Um sicher zu sein, daß die Klinke im richtigen Moment auch in die jeweilige Ausnehmung im Bremsrad eingreift, ist gemäß einer zweckmäßigen Ausbildung der Erfindung vorgesehen, daß die Klinke von dem Bremsrad in den Ausnehmungen entsprechenden Intervallen jeweils in die Sperrposition hochgewippt werdend angeordnet ist. Dabei wird dieses Hochwippen durch den nächsten Sägezahn wieder aufgefangen, so daß die Klinke bei normalem Betrieb nicht in die Ausnehmung eingreift, dagegen bei einem zu schnellen Drehen des Bremsrades um so sicherer. Hat die Klinke einmal in eine Ausnehmung eingegriffen, so sorgt sie dafür, daß der Klemmring aufgrund seiner asymmetrischen Ausbildung sicher in den Raum zwischen Bremsrad und Gehäuse hineingezogen bzw. -gedrückt wird. Auf diese Art und Weise werden sehr hohe Kräfte ausgeübt und aufgenommen.In order to be sure that the pawl also engages in the respective recess in the brake wheel at the right moment, is provided according to an expedient embodiment of the invention that the pawl is arranged by the brake wheel at intervals corresponding to the recesses being rocked up into the locking position. This rocking up is caught again by the next sawtooth, so that the pawl does not engage in the recess during normal operation, on the other hand if the brake wheel is turned too quickly, the more securely. Once the pawl has engaged in a recess, it ensures that the clamping ring is pulled or pressed securely into the space between the brake wheel and the housing due to its asymmetrical design. In this way, very high forces are exerted and absorbed.
Ein schnelles Verkeilen des Klemmringes wird insbesondere dadurch gesichert, daß die Klinke im Klemmring gelagert ist und zwar im Klemmringdicksten, wobei der Klemmring mit seinem Klemmringdicksten in Richtung Boden des Gehäuses weisend angeordnet ist. Diese Position erzwingt den schon erwähnten Wippvorgang der Klinke, die aufgrund ihrer besonderen Ausbildung immer wieder versucht, aus der Sperrposition zu kommen, daran aber immer wieder durch die einzelnen Sägezähne des Bremsrades gehindert wird.A rapid wedging of the clamping ring is ensured in particular by the fact that the pawl is mounted in the clamping ring, specifically in the thickest clamping ring, the clamping ring with its thickest clamping ring being arranged pointing towards the bottom of the housing. This position forces the above-mentioned rocking action of the pawl, which due to its special design repeatedly tries to come out of the locked position, but is always prevented from doing so by the individual saw teeth of the brake wheel.
Das jeweilige Hochwippen der Klinke wird auf einfache und zweckmäßige Weise weiter dadurch sichergestellt, daß der Schwenkpunkt der Klinke außermittig der bogenförmig ausgebildeten Klinke ausgebildet ist. Die Klinke hat somit vom Schwenkpunkt gesehen einen kürzeren und einen längeren Arm, so daß sie aufgrund des Gewichtes immer versucht in die untere Position zu kommen, durch die Zähne aber wieder mitgenommen und mit der Spitze hochgedrückt wird.The respective rocking of the pawl is further ensured in a simple and expedient manner in that the pivot point of the pawl is formed off-center of the arc-shaped pawl. The pawl has a shorter and a longer arm as seen from the pivot point, so that due to the weight it always tries to get into the lower position, but is carried along by the teeth and pushed up with the tip.
Um eine Abnutzung des von den Zähnen des Bremsrades jeweils beanspruchten Endes der Klinke zu verhindern, d.h. also einen Verschleiß des kürzeren Armes zu unterbinden, ist nach einer zweckmäßigen Ausbildung vorgesehen, daß die Klinke an dem kürzeren Arm endseitig mit einer drehbar angeordneten Rolle ausgerüstet ist. Diese Rolle sorgt also dafür, daß der jeweils auftreffende Zahn weder einen Verschleiß erzeugen kann, noch selbst verschleißt. Wird die Klinke bei schnell bzw. zu schnell laufendem Bremsrad hochgeschleudert, so ist das Eingreifen in die jeweilige Ausnehmung sicher zu erreichen, da die Klinke am längeren Arm eine in die Ausnehmungen im Bremsrad einfassende Spitze aufweist. Diese Spitze ist dabei zweckmäßig der Form der Ausnehmungen entsprechend ausgebildet, so daß sie bei Eingreifen in die Ausnehmung einen sicheren Sitz hat und damit ihrerseits wieder den Klemmring sicher mitnimmt bzw. dafür Sorge trägt, daß er vom Bremsrad mitgenommen wird und in den Schlitz zwischen Bremsrad und Gehäuse hineinrutscht. Aufgrund der Ausbildung des Klemmkörpers als Klemmring ist gleichzeitig auch sichergestellt, daß die Qualität des Klemmkörpers für die Wirkung der Fangvorrichtung annähernd unerheblich ist, weil der Klemmring aufgrund seiner Ausbildung immer keilförmig in den Schlitz hineingezogen bzw. hineingedrückt wird und dabei automatisch zu einem Abbremsen führt. Die Klinke ist vorteilhaft sicher angeordnet, wozu die Erfindung vorsieht, daß der Klemmring im Bereich des Klemmringdichsten einen in Umfangsrichtung verlaufenden Einschnitt aufweist, in dem die Klinke kippbar gelagert ist. Eine Beeinflussung der Klinke von außen her ist damit nach dem Einbauen nicht mehr möglich.In order to prevent wear of the end of the pawl that is stressed by the teeth of the brake wheel, ie to prevent wear of the shorter arm, is provided according to an appropriate training that the pawl is equipped on the shorter arm end with a rotatably arranged roller. This role therefore ensures that the tooth that hits it can neither produce wear nor wear itself. If the pawl is thrown up when the brake wheel is running too fast or too fast, the engagement in the respective recess can be reached safely, since the pawl on the longer arm has a tip which fits into the recesses in the brake wheel. This tip is expediently designed in accordance with the shape of the recesses, so that when it engages in the recess it has a secure fit and thus in turn takes the clamping ring securely with it or ensures that it is carried along by the brake wheel and into the slot between the brake wheel and housing slips in. Due to the design of the clamping body as a clamping ring, it is also ensured that the quality of the clamping body is almost insignificant for the action of the safety gear, because the clamping ring is always drawn or pressed into the slot in a wedge shape due to its design and thereby automatically leads to braking. The pawl is advantageously arranged securely, for which the invention provides that the clamping ring in the region of the clamping ring seal has a circumferential incision in which the pawl is tiltably mounted. It is therefore no longer possible to influence the jack from the outside after installation.
Der Klemmring ist mit dem Klemmringdicksten dem Boden des Gehäuses zugeordnet, was weiter oben bereits erläutert ist. Um ihn während des Normalbetriebes in dieser Position zu fixieren und ein unbeabsichtigtes Verrutschen und damit Abbremsen des Bremsrades zu unterbinden, ist gemäß der Erfindung vorgesehen, daß der Klemmring über einen Stift lösbar mit dem Gehäuse verbunden ist. Tritt die Bremswirkung durch das Eingreifen der Klinke auf, so wird der Widerstand dieses Stiftes ohne weiteres überwunden, während der Stift bei Normalbetrieb dafür Sorge trägt, daß der Klemmring in der optimalen Ausgangsposition verharrt.The clamping ring is assigned to the bottom of the housing with the thickest clamping ring, which has already been explained above. In order to fix it in this position during normal operation and to prevent unintentional slipping and thus braking of the brake wheel, the invention provides that the clamping ring is releasably connected to the housing via a pin. If the braking action occurs due to the engagement of the pawl, the resistance becomes this pin easily overcome, while the pin ensures during normal operation that the clamping ring remains in the optimal starting position.
Vorteilhaft ist es, daß gemäß der Erfindung das Gehäuse das Getriebegehäuse ist, weil es dann mit dem als Aufsteckgetriebe ausgebildeten Getriebe integriert eingebaut werden kann. Ist das Getriebe dagegen unterhalb oder oberhalb der Wickelwelle angeordnet und mit dieser beispielsweise über eine Kette verbunden, so ist das Gehäuse gesondert ausgebildet, so daß es dann bei Tragmittelbruch automatisch als Bremsbacke wirkt.It is advantageous that, according to the invention, the housing is the gear housing, because it can then be integrated with the gear designed as a slip-on gear. If, on the other hand, the gear is arranged below or above the winding shaft and connected to it, for example via a chain, the housing is designed separately so that it automatically acts as a brake shoe when the suspension element breaks.
Die Klinke wird durch das Bremsrad gleichmäßig beeinflußt und in einer Art Schwebezustand gehalten, da gemäß einer zweckmäßigen Ausbildung die durch die Ausnehmungen auf dem Außenumfang des Bremsrades gebildeten Sägezähne gleichmäßig verteilt ausgebildet sind und daß die Klinke so bemessen ist, daß jeweils mindestens drei Sägezähne die Klinke abdecken. Damit wird bei normalem langsamen Drehen der Wickelwelle die Klinke immer wieder hochgedrückt, ohne daß die Gefahr besteht, daß sie durch einen zu großen Abstand der Sägezähne praktisch hochgeschleudert wird und dadurch in Bremsposition kommen kann.The pawl is influenced evenly by the brake wheel and kept in a kind of suspended state, since according to an appropriate design the saw teeth formed by the recesses on the outer circumference of the brake wheel are evenly distributed and that the pawl is dimensioned such that at least three saw teeth each pawl cover. Thus, with normal slow rotation of the winding shaft, the pawl is pushed up again and again without the risk that it will be practically flung up by a too large distance between the saw teeth and can therefore come into the braking position.
Nach dem Ansprechen der Klinke bei Tragmittelbruch wird der durch die Klinke beanspruchte Sägezahn dadurch entlastet, daß der Innenrand des Klemmringes im Bereich der Klinke und in Drehrichtung weitergezogen aufgerauht ausgebildet ist oder Unebenheiten aufweist. Dadurch greifen die den beanspruchten Sägezahn nachfolgenden bzw. vorgeordneten Sägezähne jeweils in den Bremsvorgang sicher ein und sorgen mit dafür, daß der Klemmring schnell in die Keilposition geschoben wird.After the pawl has responded in the event of a suspension element breakage, the sawtooth stressed by the pawl is relieved in that the inner edge of the clamping ring is roughened in the region of the pawl and in the direction of rotation or has unevenness. As a result, the saw teeth following or upstream of the claimed saw tooth engage securely in the braking process and also ensure that the clamping ring is quickly pushed into the wedge position.
Die notwendige Asymmetrie des Klemmringes wird vorteilhaft dadurch erreicht, daß der Mittelpunkt des den Innenrand bildenden Kreises geringfügig, vorzugsweise 5 mm unterhalb des den Außenrand bildenden Kreises liegt. Damit ist ein gleichmäßiger und sich optimal in den vorhandenen Spalt einschiebender Keil gegeben, der sehr schnell zum Abbremsen des Bremsrades führt.The necessary asymmetry of the clamping ring is advantageously achieved in that the center of the circle forming the inner edge lies slightly, preferably 5 mm below the circle forming the outer edge. This results in a uniform wedge that optimally slides into the existing gap and very quickly leads to the braking of the brake wheel.
Die Erfindung zeichnet sich insbesondere dadurch aus, daß bei einem Tragmittelbruch sehr schnell der Abbremsvorgang dadurch eingeleitet wird, daß die Klinke in die Verzahnung des Bremsrades eingreift und dadurch den Klemmring in Fallrichtung so verschiebt, daß eine Verkeilung zwischen Klemmring und Bremsrad bzw. Klemmring und Gehäuse auftritt. Im Normalbetrieb dagegen ist auch ein unbeabsichtigtes Abbremsen des Bremsrades und damit der Wickelwelle durch die Klinke unterbunden, weil die Klinke aufgrund ihrer Ausbildung jeweils versucht aus der Sperrstellung herauszukippen. Bei langsamen Drehen des Bremsrades wird die Klinke immer wieder daran gehindert, weil die langsam darüber hinweglaufenden Sägezähne auf das eine Rolle tragende Ende und damit den kürzeren Arm der Klinke aufdrückt. Bei schnell laufendem Bremsrad dagegen wird die Klinke hochgeschleudert, so daß sie in eine der Ausnehmungen im Bremsrad eingreift und dann den Abbremsvorgang kurzfristig bewirkt. Besonders vorteilhaft ist, daß aufgrund der flächigen Abbremsung und der besonderen Ausbildung der einzelnen Teile auf Zinkdruckguß oder Messing übergegangen werden kann, wobei eine besondere Bearbeitung weder des Bremsrades noch der anderen Teile notwendig ist. Die Form und die besondere Ausbildung und Anordnung der einzelnen Teile bewirkt und sichert ein schnelles Abbremsen der Wickelwelle bei Tragmittelbruch o.a. Schäden.The invention is particularly characterized in that in the event of a suspension element breakage, the braking process is initiated very quickly in that the pawl engages in the toothing of the brake wheel and thereby displaces the clamping ring in the direction of fall so that wedging between the clamping ring and the brake wheel or clamping ring and housing occurs. In normal operation, however, unintentional braking of the brake wheel and thus the winding shaft by the pawl is prevented because the pawl tries to tip out of the locked position due to its design. When the brake wheel turns slowly, the pawl is repeatedly prevented from doing so because the saw teeth running slowly over it presses onto the end that carries a roller and thus the shorter arm of the pawl. When the brake wheel is running fast, on the other hand, the pawl is thrown up so that it engages in one of the recesses in the brake wheel and then brings about the braking process for a short time. It is particularly advantageous that, due to the flat braking and the special design of the individual parts, it is possible to switch to die-cast zinc or brass, with no special machining of the brake wheel or the other parts being necessary. The shape and the special design and arrangement of the individual parts ensures and ensures that the winding shaft is braked quickly if the suspension element breaks or the like. Damage.
Weitere Einzelheiten und Vorteile des Erfindungsgegenstandes ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der ein bevorzugtes Ausführungsbeispiel mit den dazu notwendigen Einzelheiten und Einzelteilen dargestellt ist. Es zeigen:
- Fig. 1 eine Seitenansicht der Fangvorrichtung im Normalbetriebszustand,
- Fig. 2 das sägeradähnlich ausgebildete Bremsrad in Seitenansicht und
- Fig. 3 in Draufsicht,
- Fig. 4 den Klemmring in Seitenansicht und
- Fig. 5 den Klemmring in Draufsicht sowie
- Fig. 6 die Klinke in Seitenansicht und in Draufsicht.
- 1 is a side view of the safety gear in the normal operating state,
- Fig. 2 the saw wheel-like brake wheel in side view
- 3 in plan view,
- Fig. 4 shows the clamping ring in side view
- Fig. 5, the clamping ring in plan view and
- Fig. 6 the pawl in side view and in plan view.
Die in den Figuren wiedergegebene Fangvorrichtung (1) ist hier als in das Aufsteckgetriebe integrierte Fangvorrichtung ausgebildet. Auf die Wickelwelle (2), die im Gehäuse (3) sich drehend angeordnet ist, ist ein Bremsrad (4) aufgeschoben, das sägeradähnlich ausgebildet ist und dem ein besonders geformter Bremskörper zugeordnet ist. Die Umdrehungsrichtung des Bremsrades (4) ist mit (6) bezeichnet.The safety device (1) shown in the figures is designed here as a safety device integrated in the slip-on gear. A brake wheel (4) is slid onto the winding shaft (2), which is arranged to rotate in the housing (3), which is designed like a saw wheel and to which a specially shaped brake body is assigned. The direction of rotation of the brake wheel (4) is designated (6).
Über den Umfang des Bremsrades (4) verteilt weist dieses gleichförmig angeordnete und ausgebildete Ausnehmungen (9, 10) auf, die in Umdrehungsrichtung (6) weisende Sägezähne (11, 12) bilden.Distributed over the circumference of the brake wheel (4), it has recesses (9, 10) which are arranged and formed uniformly and form saw teeth (11, 12) pointing in the direction of rotation (6).
Zwischen dem Bremsrad (4) und dem Gehäuse (3) ist ein Klemmring (13) in asymmetrischer Ausbildung angeordnet. Mit seinem Klemmringdicksten (14) ist er in Richtung Boden (15) des Gehäuses (3) weisend angeordnet und mit einer Klinke (16) ausgerüstet, die um den Schwenkpunkt (17) schwenkbar ist.Between the brake wheel (4) and the housing (3) a clamping ring (13) is arranged in an asymmetrical design. With its thickest clamping ring (14), it is arranged pointing in the direction of the bottom (15) of the housing (3) and equipped with a pawl (16) which can be pivoted about the pivot point (17).
Die Klinke (16) weist einen längeren Arm (17) und einen kürzeren Arm (19) auf. Am freien Ende des kürzeren Armes (19) ist eine Rolle (20) drehbar angeordnet, wobei auf diese Rolle (20) jeweils der vorbeidrehende Sägezahn (12) einwirkt und dafür Sorge trägt, daß die Klinke (16) aufgrund ihres längeren Armes (18) nicht herabsinken oder herabfallen kann. Vielmehr wird die Spitze (21) des längeren Armes (18), die der Form der Ausnehmungen (9, 10) angepaßt ist, jeweils in die aus Fig. 1 ersichtliche Position geschwenkt, um dann bis zum nächsten Sägezahn (11) wieder zu sinken und dadurch den nächsten Sägezahn passieren zu lassen. Das Anheben und Absenken der Spitze (21) erfolgt somit bei langsamem Drehen der Wickelwelle (2) und damit des Bremsrades (4), ohne daß die Klinke (16) mit ihrer Spitze (21) in eine der Ausnehmungen (9, 10) eingreifen kann.The pawl (16) has a longer arm (17) and one shorter arm (19). At the free end of the shorter arm (19), a roller (20) is rotatably arranged, the saw tooth (12) rotating past acting on this roller (20) and ensuring that the pawl (16) due to its longer arm (18 ) cannot drop or fall. Rather, the tip (21) of the longer arm (18), which is adapted to the shape of the recesses (9, 10), is pivoted into the position shown in FIG. 1, in order to then sink again to the next sawtooth (11) and thereby let the next sawtooth pass. The tip (21) is thus raised and lowered when the winding shaft (2) and thus the brake wheel (4) are turned slowly, without the pawl (16) engaging with one of the recesses (9, 10) with its tip (21) can.
Dreht dagegen die Wickelwelle (2) bzw. das Bremsrad (4) aufgrund eines Tragmittelbruches mit erhöhter Geschwindigkeit, so wird die Klinke (16) durch die mit entsprechender Wucht auftreffenden Sägezähne (11 bzw. 12) hochgeschwenkt bzw. hochgewippt, so daß die Spitze (21) in eine der Ausnehmungen (9, 10) einrastet und dadurch ein Mitziehen bzw. Mitdrücken des Klemmringes (13) bewirkt. Der Klemmring (13) wird in Pfeilrichtung, d.h. in Umdrehungsrichtung (6) verschoben, so daß eine Verkeilung zwischen dem Bremsrad (4) und dem Klemmring (13) eintritt. Das Bremsrad (4) und damit die Wickelwelle (2) werden damit auf kürzestem Weg festgesetzt und der Tragmittelbruch kann behoben werden.If, on the other hand, the winding shaft (2) or the brake wheel (4) rotates at an increased speed due to a breaking of the suspension element, the pawl (16) is swiveled up or rocked up by the saw teeth (11 or 12) striking with appropriate force, so that the tip (21) engages in one of the recesses (9, 10) and thereby causes the clamping ring (13) to be pulled or pressed together. The clamping ring (13) is in the direction of the arrow, i.e. shifted in the direction of rotation (6) so that wedging occurs between the brake wheel (4) and the clamping ring (13). The brake wheel (4) and thus the winding shaft (2) are fixed in the shortest possible way and the suspension element breakage can be remedied.
Um bei Normalbetrieb den Klemmring (13) in der aus Fig. 1 ersichtlichen Position zu halten, ist er über den Stift (28) festgelegt, der in eine entsprechende Einkerbung (27) im Klemmring (13) eingreift. Entsprechendes zeigt Fig. 4. Fig. 4 verdeutlicht darüber hinaus die asymmetrische Ausbildung des Klemmringes und verdeutlicht, daß auf dem Innenrand (29) Unebenheiten (30) vorgesehen sind, die das Mitnehmen des Klemmringes (13) durch die einzelnen Sägezähne (11, 12) bei Tragmittelbruch erleichtert bzw. zusätzlich sicherstellt. Im Außenrand (26) ist die Einkerbung (27) für den Stift (28) vorgesehen. Mit (17) ist der Schwenkpunkt bezeichnet, um den die eingesetzte Klinke (16) wippen kann.In order to hold the clamping ring (13) in the position shown in FIG. 1 during normal operation, it is fixed via the pin (28) which engages in a corresponding notch (27) in the clamping ring (13). The same is shown in Fig. 4. Fig. 4 also illustrates the asymmetrical design of the clamping ring and shows that on the inner edge (29) bumps (30) are provided, which the Carrying the clamping ring (13) by the individual saw teeth (11, 12) facilitates or additionally ensures in the event of a suspension element breakage. The notch (27) for the pin (28) is provided in the outer edge (26). The pivot point is designated by (17) about which the pawl (16) used can rock.
Fig. 2 und 3 zeigen das Bremsrad (4) mit seinen Ausnehmungen (9, 10) und den Sägezähnen (11, 12). Verdeutlicht ist hier, daß diese Sägezähne (11, 12) und damit auch die Ausnehmungen (9, 10) gleichmäßig über den Umfang verteilt sind.2 and 3 show the brake wheel (4) with its recesses (9, 10) and the saw teeth (11, 12). It is made clear here that these saw teeth (11, 12) and thus also the recesses (9, 10) are evenly distributed over the circumference.
Fig. 5 zeigt den Klemmring (13) in Draufsicht, wobei hier deutlich wird, daß und wie der Einschnitt (23) vorgesehen ist, in den die Klinke (16) eingesetzt wird. Im Bereich des Einschnittes (23) sind in dem Klemmring (13) Bohrungen (22, 31) vorgesehen, in den die Klinke (16) mit ihren Bolzen (24, 25) eingesetzt werden kann, so daß sie leicht um den Schwenkpunkt (17) schwenkt. Die bogenförmige Ausbildung der Klinke (16) verdeutlicht Fig. 6 oberer Teil, wobei oberer und unterer Teil der Fig. 6 verdeutlichen, wie die Rolle (20) am kürzeren Arm (19) angeordnet ist.Fig. 5 shows the clamping ring (13) in plan view, it being clear here that and how the incision (23) is provided, in which the pawl (16) is used. In the area of the incision (23) bores (22, 31) are provided in the clamping ring (13), into which the pawl (16) with its bolts (24, 25) can be inserted, so that they can be easily moved around the pivot point (17th ) pivots. The upper part of FIG. 6 illustrates how the roller (20) is arranged on the shorter arm (19).
Anhand dieser Figuren wird deutlich, wie einfach die erfindungsgemäße Fangvorrichtung ausgebildet und aufgebaut ist und welche sichere Abbremsung der Wickelwelle (2) aufgrund der Verkeilung des Klemmringes (13) zwischen Bremsrad (4) und Gehäuse (3) und damit einer flächenmäßigen Abbremsung erzielt werden kann.These figures clearly show how simple the safety device according to the invention is designed and constructed, and which safe braking of the winding shaft (2) can be achieved due to the wedging of the clamping ring (13) between the brake wheel (4) and the housing (3) and thus an areal braking .
Claims (12)
dadurch gekennzeichnet,
daß das Bremsrad (4) sägezahnförmige, gleichmäßig über den Umfang verteilt angeordnete Ausnehmungen (9, 10) aufweist und daß der Bremskörper (5) als asymmetrischer Klemmring (13) ausgebildet ist und über eine schwenkbar angeordnete Klinke (16) bei ungewolltem, zu schnellem Abrollen mit dem Bremsrad verbindbar ist.1. arresting device for securing roller shutters, rolling grilles and other rollable gate closures, with a brake wheel arranged on the winding shaft in a rotationally fixed manner, in the event of unwanted unwinding of the winding shaft on the brake wheel acting on the brake wheel and the housing fixed relative to the winding shaft,
characterized,
that the brake wheel (4) has sawtooth-shaped, evenly distributed over the circumference recesses (9, 10) and that the brake body (5) is designed as an asymmetrical clamping ring (13) and a pivotally arranged pawl (16) in the case of unwanted, too fast Rolling can be connected to the brake wheel.
dadurch gekennzeichnet,
daß die Klinke (16) von dem Bremsrad (4) in den Ausnehmungen (9, 10) entsprechenden Intervallen jeweils in die Sperrposition hochgewippt werdend angeordnet ist.2. Safety gear according to claim 1,
characterized,
that the pawl (16) is arranged by the brake wheel (4) in the recesses (9, 10) at intervals corresponding to the locking position.
dadurch gekennzeichnet,
daß die Klinke (16) im Klemmring (13) gelagert ist und zwar im Klemmringdicksten (14), wobei der Klemmring mit seinem Klemmringdicksten in Richtung Boden (15) des Gehäuses (3) weisend angeordnet ist.3. Safety gear according to claim 1,
characterized,
that the pawl (16) is mounted in the clamping ring (13), specifically in the thickest clamping ring (14), the clamping ring with its thickest clamping ring being arranged pointing in the direction of the bottom (15) of the housing (3).
dadurch gekennzeichnet,
daß der Schwenkpunkt (17) der Klinke (16) außermittig der bogenförmig ausgebildeten Klinke ausgebildet ist.4. Safety gear according to claim 1,
characterized,
that the pivot point (17) of the pawl (16) is formed off-center of the arcuate pawl.
dadurch gekennzeichnet,
daß die Klinke (16) an dem kürzeren Arm (9) endseitig mit einer drehbar angeordneten Rolle (20) ausgerüstet ist.5. Safety device according to claim 1,
characterized,
that the pawl (16) on the shorter arm (9) ends with a rotatably arranged roller (20) is equipped.
dadurch gekennzeichnet,
daß die Klinke (16) am längeren Arm (18) eine in die Ausnehmung (9, 10) im Bremsrad (4) einfassende Spitze (21) aufweist.6. Safety device according to claim 1,
characterized,
that the pawl (16) on the longer arm (18) has a tip (21) which surrounds the recess (9, 10) in the brake wheel (4).
dadurch gekennzeichnet,
daß der Klemmring (13) im Bereich des Klemmringdicksten (14) einen in Umfangsrichtung verlaufenden Einschnitt (23) aufweist, in dem die Klinke (16) kippbar gelagert ist.7. Safety device according to claim 1,
characterized,
that the clamping ring (13) in the region of the thickest clamping ring (14) has a circumferential incision (23) in which the pawl (16) is pivotally mounted.
dadurch gekennzeichnet,
daß der Klemmring (13) über einen Stift (28) lösbar mit dem Gehäuse (3) verbunden ist.8. Safety device according to claim 1,
characterized,
that the clamping ring (13) is releasably connected to the housing (3) via a pin (28).
dadurch gekennzeichnet,
daß das Gehäuse (3) das Getriebegehäuse ist.9. Safety device according to claim 1,
characterized,
that the housing (3) is the gear housing.
dadurch gekennzeichnet,
daß die durch die Ausnehmungen (9, 10) auf dem Außenumfang des Bremsrades (4) gebildeten Sägezähne (10, 11) gleichmäßig verteilt ausgebildet sind und daß die Klinke (16) so bemessen ist, daß jeweils mindestens drei Sägezähne die Klinke abdecken.10. Safety device according to claim 1,
characterized,
that the saw teeth (10, 11) formed by the recesses (9, 10) on the outer circumference of the brake wheel (4) are evenly distributed and that the pawl (16) is dimensioned such that at least three saw teeth cover the pawl.
dadurch gekennzeichnet,
daß der Innenrand (29) des Klemmringes (13) im Bereich der Klinke (16) und in Drehrichtung weitergezogen aufgerauht ausgebildet ist oder Unebenheiten (30) aufweist.11. Safety gear according to claim 1,
characterized,
that the inner edge (29) of the clamping ring (13) is roughened in the region of the pawl (16) and pulled further in the direction of rotation or has unevenness (30).
dadurch gekennzeichnet,
daß der Mittelpunkt des den Innenrand (29) bildenden Kreises geringfügig, vorzugsweise 5 mm oberhalb des den Außenrand (26) bildenden Kreises liegt.12. Safety device according to claim 1,
characterized,
that the center of the circle forming the inner edge (29) is slightly, preferably 5 mm above the circle forming the outer edge (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT87118797T ATE63152T1 (en) | 1987-01-17 | 1987-12-18 | SAFETY DEVICE FOR ROLLER GATES WITH CLAMPING RING. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873701251 DE3701251A1 (en) | 1987-01-17 | 1987-01-17 | COLLAR DEVICE FOR ROLLING DOORS WITH CLAMP RING |
| DE3701251 | 1987-01-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0275509A2 true EP0275509A2 (en) | 1988-07-27 |
| EP0275509A3 EP0275509A3 (en) | 1989-01-11 |
| EP0275509B1 EP0275509B1 (en) | 1991-05-02 |
Family
ID=6318998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87118797A Expired - Lifetime EP0275509B1 (en) | 1987-01-17 | 1987-12-18 | Apparatus with a blocking ring for roll-up doors |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0275509B1 (en) |
| AT (1) | ATE63152T1 (en) |
| DE (2) | DE3701251A1 (en) |
| ES (1) | ES2022286B3 (en) |
| GR (1) | GR3001911T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0546876A1 (en) * | 1991-12-11 | 1993-06-16 | Zurfluh Feller S.A. | Roller shutter speed limiting device |
| US7254868B2 (en) | 2004-12-27 | 2007-08-14 | Wayne-Dalton Corp. | winding and anti-drop assembly for door counterbalance system |
| EP2292743A2 (en) | 2003-12-03 | 2011-03-09 | Genencor International, Inc. | Perhydrolase |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3840444C2 (en) * | 1988-12-01 | 1998-11-19 | Mfz Antriebe Gmbh | Tubular motor |
| DE3901206C2 (en) * | 1989-01-17 | 1994-11-10 | Mfz Antriebe Gmbh | Safety gear to secure roller doors etc. |
| DE4024666C2 (en) * | 1990-06-01 | 1994-02-03 | Niemetz Torbau Und Metallbau | Sectional gate |
| DE4207697C2 (en) * | 1992-02-19 | 1994-10-06 | Wilfried Rahe | Safety device for winding shafts |
| DE102006034962B4 (en) | 2006-07-28 | 2010-07-08 | Feig Electronic Gmbh | Method for secure braking of a gate and device for carrying out the method |
| DE202007002787U1 (en) * | 2007-02-22 | 2008-07-03 | GfA-Antriebstechnik Gesellschaft mit beschränkter Haftung | Safety gear for stopping a deflection or winding shaft |
| DE202011107241U1 (en) * | 2011-06-21 | 2012-11-07 | GfA-Gesellschaft für Antriebstechnik Dr.-Ing. Hammann GmbH & Co. KG | Tubular motor drive and Excentergetriebe for tubular motor drive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2708087A1 (en) * | 1977-02-25 | 1978-08-31 | Neukirchen W U H | Roller shutter or door drop retarding catch - has shoe, cone or disc brake with wedge and blocking counter-piece |
| DE3140792A1 (en) * | 1981-10-14 | 1983-04-28 | Josef Timmer Gmbh, 4420 Coesfeld | Securing device for orifice closures rolled up on a winding shaft |
| DE3300215A1 (en) * | 1983-01-05 | 1984-07-12 | Fa. W.u.H. Neukirchen, 4060 Viersen | Drive for rolling doors |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH573146A5 (en) * | 1974-07-18 | 1976-02-27 | Kauffmann Th Kg Rolladen Kauff | Grab for lifting or lowering loads - released in dependence on speed with control disc rotating with drive roller |
| DE2441522C3 (en) * | 1974-08-30 | 1982-08-19 | Werner 4426 Vreden Haake | Safety device for roller doors or the like. |
| DE8225405U1 (en) * | 1982-09-09 | 1982-12-30 | Haake, Andre, 4286 Südlohn | SECURING DEVICE AGAINST UNWANTED ROLLING OF OPENING CLOSES |
-
1987
- 1987-01-17 DE DE19873701251 patent/DE3701251A1/en active Granted
- 1987-12-18 ES ES87118797T patent/ES2022286B3/en not_active Expired - Lifetime
- 1987-12-18 EP EP87118797A patent/EP0275509B1/en not_active Expired - Lifetime
- 1987-12-18 AT AT87118797T patent/ATE63152T1/en not_active IP Right Cessation
- 1987-12-18 DE DE8787118797T patent/DE3769778D1/en not_active Expired - Lifetime
-
1991
- 1991-05-03 GR GR91401107T patent/GR3001911T3/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2708087A1 (en) * | 1977-02-25 | 1978-08-31 | Neukirchen W U H | Roller shutter or door drop retarding catch - has shoe, cone or disc brake with wedge and blocking counter-piece |
| DE3140792A1 (en) * | 1981-10-14 | 1983-04-28 | Josef Timmer Gmbh, 4420 Coesfeld | Securing device for orifice closures rolled up on a winding shaft |
| DE3300215A1 (en) * | 1983-01-05 | 1984-07-12 | Fa. W.u.H. Neukirchen, 4060 Viersen | Drive for rolling doors |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0546876A1 (en) * | 1991-12-11 | 1993-06-16 | Zurfluh Feller S.A. | Roller shutter speed limiting device |
| FR2685032A1 (en) * | 1991-12-11 | 1993-06-18 | Zurflum Feller Sa | SPEED LIMITER FOR ROLLER SHUTTERS. |
| EP2292743A2 (en) | 2003-12-03 | 2011-03-09 | Genencor International, Inc. | Perhydrolase |
| EP2295554A2 (en) | 2003-12-03 | 2011-03-16 | Genencor International, Inc. | Perhydrolase |
| EP2664670A1 (en) | 2003-12-03 | 2013-11-20 | Danisco US Inc. | Perhydrolase |
| US8772007B2 (en) | 2003-12-03 | 2014-07-08 | Danisco Us Inc. | Perhydrolase |
| US7254868B2 (en) | 2004-12-27 | 2007-08-14 | Wayne-Dalton Corp. | winding and anti-drop assembly for door counterbalance system |
Also Published As
| Publication number | Publication date |
|---|---|
| GR3001911T3 (en) | 1992-11-23 |
| EP0275509A3 (en) | 1989-01-11 |
| ATE63152T1 (en) | 1991-05-15 |
| ES2022286B3 (en) | 1991-12-01 |
| DE3769778D1 (en) | 1991-06-06 |
| DE3701251C2 (en) | 1989-05-18 |
| DE3701251A1 (en) | 1988-07-28 |
| EP0275509B1 (en) | 1991-05-02 |
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