EP0919687B1 - Motor actuated lock for door of apparatus - Google Patents

Motor actuated lock for door of apparatus Download PDF

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Publication number
EP0919687B1
EP0919687B1 EP19970119345 EP97119345A EP0919687B1 EP 0919687 B1 EP0919687 B1 EP 0919687B1 EP 19970119345 EP19970119345 EP 19970119345 EP 97119345 A EP97119345 A EP 97119345A EP 0919687 B1 EP0919687 B1 EP 0919687B1
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EP
European Patent Office
Prior art keywords
door
motor
fact
calliper
closure
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
Application number
EP19970119345
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German (de)
French (fr)
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EP0919687A1 (en
Inventor
Ernst-Christian Braetsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rahrbach GmbH
Original Assignee
Rahrbach GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rahrbach GmbH filed Critical Rahrbach GmbH
Priority to DE59710094T priority Critical patent/DE59710094D1/en
Priority to ES97119345T priority patent/ES2196236T3/en
Priority to EP19970119345 priority patent/EP0919687B1/en
Publication of EP0919687A1 publication Critical patent/EP0919687A1/en
Application granted granted Critical
Publication of EP0919687B1 publication Critical patent/EP0919687B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
    • E05B17/0029—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing motor-operated
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E05C3/30—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a hook
    • E05C3/34—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a hook with simultaneously operating double bolts

Definitions

  • the invention relates to a motorized closure for housings with a door that has a circumferential elastic seal.
  • the device is not only quite complicated, but also not very adaptable.
  • the invention is based, to facilitate the operation and independent of the task uniform sealing pressure due to the quality and wear of the seal guarantee.
  • Fig. 1 denotes a block which projects between the halves 2a, 2b of a gripper 2.
  • the parts 2a, 2b represent two-armed levers which are connected to one another via molded-on bearing blocks 2a1, 2b1 and a bolt 3.
  • a control slide 4 between the bearing blocks 2a1 and 2b1, the elongated hole 4a of which extends over the bolt 3.
  • a light coil spring 5 is clamped, which compresses the gripping pliers 2 at the left end.
  • the actual gripping elements are truncated cones 2a2 and 2b2, which fit into a recess 1a in the block 1.
  • the pliers 2 snap into place, as shown in FIG. 2 .
  • the block 1 is held with a force that is predetermined by the characteristics of the spring 5.
  • Fig. 4 it is shown how the unit consisting of clamp 1 and gripper 2 was pulled to the right with the aid of the control slide 4 in order to press the door seal firmly.
  • the contact pressure is determined by the motor, which has an adjustable switch-off torque.
  • the opening of the cabinet is as follows: If the motor is reversed by an opening impulse, the described unit moves to the left until the pressure exerted by the seal is balanced. The control slide 4 then runs into its left end position, which is drawn in FIG. 2 . In this unlocked position, the door can be easily opened with the block 1, as shown in FIG. 1 .
  • Fig. 5 the pliers half 2b is shown in plan view. One can see the truncated cone 2b2 at the bottom, the bearing blocks 2b1 in the central area and pins 2b3 at the upper edge, which accommodate two identical coil springs.
  • Fig. 6 shows the gripping pliers 2 in an exploded view.
  • Each pliers half is equipped with two pedestals 2a1 and 2b1, which mesh like a comb and are therefore extremely stable.
  • the bolt 3 is not only a bearing bolt, but also a support and guide for the control slide 4, the relative movement of which is limited by the elongated hole 4a.
  • Fig. 7 the part 2a and the spool 4 is drawn in side view.
  • a pin 2a3 can be seen as a guide element for a spring 5.
  • the control slide 4 has fastening holes 4b for the pull rod 6.
  • this pull rod 6 can be seen in different operating states.
  • the left end of the rod is connected to the control spool 4 via the holes 6a, and the right end is coupled to a geared motor unit 7 shown in FIG. 10 via an angled slot 6b.
  • the driven wheel 8 of this unit carries an eccentric pin 9 which slides in the slot 10a of a link 10.
  • this link has a coupling pin 10b which slides in the slot 6b. Slot and coupling pin serve as an emergency release for the closure.
  • Fig. 8 shows the arrangement in the state of the emergency release
  • Fig. 9 shows the position of the parts with the door closed.
  • the rod 6 can move to the left and the pliers 2 release the block 1. If the door is to be closed after an emergency release, the motor must first receive an opening impulse. Then the backdrop 10 moves to the left until the pin 10b assumes the latching position in the angled slot 6b. The rod 6 either falls down due to its own weight, or the engagement is effected by a spring. In Fig. 10 , the rod 6 and the backdrop 10 assume the left end position, in which the door is open or prepared for opening. When the motor 13 starts in the closing direction, the driven gear 8 is moved in the direction of the arrow 12 via the gears 14, 15, 16.
  • the eccentric pin 9 pulls the link 10 with the rod 6 to the right until a certain closing force is reached and the state corresponds to FIG. 9 .
  • the angle of rotation of the wheel 8 can be between 100 and approximately 170 °. By fine adjustment, an angle between 150 and 170 ° will be preferred, because then a greater closing force can be achieved with a smaller motor torque.
  • the gears 14, 15 are designed as worm gears, the drive is self-locking.
  • a current consumption sensor causes the motor to switch off when a desired closing force is reached.
  • the locking command for the geared motor can come from a door contact, a button on the cabinet or in the foot area or from a program control.
  • the 11 shows the drive unit from above.
  • the relatively small motor 13 is arranged slightly obliquely. His worm wheel 14 engages the wheel 15.
  • the length of the rod 6 is arbitrary. In this way, the drive unit can be located far back in the housing, where harmful effects from heat or moisture can be excluded.
  • 1, 2 or 3 motorized locks can be arranged one above the other and controlled synchronously.
  • the door lock described is intended to be used in hot appliances or other technical devices such as centrifuges. It is particularly advantageous that the operator has his hands free.
  • the maintenance intervals for the system are very long because the gripper exposed to heat or a special atmosphere has no sensitive parts and because the aging seal is always pressed with constant closing force.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Description

Technisches GebietTechnical field

Gegenstand der Erfindung ist ein motorischer Verschluß für Gehäuse mit einer Tür, die eine umlaufende elastische Dichtung aufweist.The invention relates to a motorized closure for housings with a door that has a circumferential elastic seal.

Stand der TechnikState of the art

Bei Geräten oder Schränken mit heißer Atmosphäre oder Heißdampfentwicklung muß dafür gesorgt werden, daß die Tür gegen die Kraft einer elastischen Dichtung fest verschlossen werden kann.For devices or cabinets with a hot atmosphere or hot steam generation must be made sure that the door firmly against the force of an elastic seal can be closed.

Man unterscheidet dabei zwei Schließzustände: Die angelehnte Tür, die einen evtl. Ausgleich eines Überdrucks erlaubt und die Verriegelung unter Druck.A distinction is made between two closed states: the ajar door, which may Equalization of overpressure allowed and locking under pressure.

Bei Verschlüssen mit Drehfalle oder Keilhebel muß der Benutzer erhebliche Kräfte aufbringen und zumindest eine Hand frei haben.In the case of closures with a rotary latch or wedge lever, the user must exert considerable forces apply and at least have one hand free.

Aus dem US-Patent 3,515,421 ist eine Backenklinke bekannt geworden, die einen Klinkenbolzen und eine aus zwei Hälften bestehende Zange aufweist, die über einen Bolzen in einem mehrteiligen Gehäuse mit Langlöchern verschiebbar gelagert ist. Diese Zange wird durch einen mit verschiedenen Steuerschlitzen versehenen Steuerschieber betätigt, der quer zur Längsrichtung gezogen werden muß. Dabei wird nicht nur die Zange mit dem Klinkenbolzen verrastet, sondern dieser wird auch um einen durch die Steuerschlitze vorgegebenen Weg nach unten gezogen.From US Pat. No. 3,515,421 a jaw pawl has become known Pawl pin and pliers consisting of two halves, which over one Bolt is slidably mounted in a multi-part housing with elongated holes. This Pliers are operated by a control slide with various control slots actuated, which must be pulled transversely to the longitudinal direction. Not only the pliers locked with the jack bolt, but this is also one by the Control slots are drawn down the specified path.

Die Vorrichtung ist nicht nur recht kompliziert, sondern auch wenig anpassungsfähig.The device is not only quite complicated, but also not very adaptable.

In der EP 0 379 801 ist ein motorischer Kofferraumverschluß offenbart, der über eine Seiltrommel den Kofferraumdeckel herunter zieht. Anschließend wird über eine biegsame Welle ein Verschlussbügel in der Zarge über einen Klinkenbolzen am Kofferraumdeckel gezogen. Die Lösung ist auf die Bedürfnisse der Automobilindustrie ausgerichtet und für die Verriegelung einer Heißgerätetür nicht ohne weiteres anwendbarIn EP 0 379 801 a motorized trunk lock is disclosed, which has a Rope drum pulls down the trunk lid. Then a flexible Shaft a locking bracket in the frame via a latch bolt on the trunk lid drawn. The solution is tailored to the needs of the automotive industry and for the locking of a hot appliance door is not readily applicable

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, die Bedienung zu erleichtern und unabhängig von der Qualität und Abnutzung der Dichtung einen gleichmäßigen Schließdruck zu gewährleisten. The invention is based, to facilitate the operation and independent of the task uniform sealing pressure due to the quality and wear of the seal guarantee.

Diese Aufgabe wird bei einem motorischen Verschluß der eingangs genannten Art dadurch gelöst, daß ein türseitiger Kloben, der eine Aussparung aufweist, in eine Greifzange eintaucht, die aus zwei durch einen Bolzen verbundenen Zangenhälften besteht, zwischen denen ein mit Langloch versehener und motorisch angetriebener Steuerschieber gelagert ist, wobei dieser in einer Endlage die Zangenöffnung freigibt und in der anderen diese Zange und den Kloben blockiert, so daß der Motor die Tür mit einstellbarer Kraft gegen das Gehäuse zu ziehen vermag, wobei die Zugkraftrichtung mit den Bewegungsrichtungen des klobens und des Schiebers zusammenfällt.This task is achieved with a motorized closure of the type mentioned solved that a door-side block, which has a recess, in a gripper immersed, which consists of two pliers halves connected by a bolt, between which a long slotted and motor-driven control slide mounted is, this opens the pliers opening in one end position and this in the other Pliers and the block blocked, so that the motor against the door with adjustable force the housing can pull, the direction of the tensile force with the directions of movement the block and the slider coincide.

Beschreibung der ZeichnungenDescription of the drawings

Ein Ausführungsbeispiel der Erfindung wird anhand von Fig. 1 - 11 der Zeichnung erläutert.

Fig. 1
zeigt die Greifzange bei offener Tür,
Fig. 2
diese Zange bei eingefahrenem Kloben,
Fig. 3
die verriegelte Zange,
Fig. 4
die in die Schließstellung gezogene, also nach rechts verschobene Zange,
Fig. 5
eine Zangenhälfte,
Fig. 6
eine Zange in Explosionsdarstellung,
Fig. 7
eine Zangenhälfte und den Steuerschieber von der Seite,
Fig. 8
den Getriebemotor und die Antriebsstange im Falle der Notentriegelung,
Fig. 9
die Teile bei geschlossener Tür,
Fig. 10
die Teile bei offener Tür,
Fig. 11
den Antrieb von oben.
An embodiment of the invention is explained with reference to FIGS. 1-11 of the drawing.
Fig. 1
shows the gripper with the door open,
Fig. 2
these pliers with the clamp retracted,
Fig. 3
the locked pliers,
Fig. 4
the pliers pulled into the closed position, i.e. moved to the right,
Fig. 5
a pair of pliers,
Fig. 6
exploding pliers,
Fig. 7
a pair of pliers and the spool from the side,
Fig. 8
the geared motor and the drive rod in the event of an emergency release,
Fig. 9
the parts with the door closed,
Fig. 10
the parts with the door open,
Fig. 11
the drive from above.

In Fig. 1 ist mit 1 ein Kloben bezeichnet, der zwischen die Hälften 2a, 2b einer Greifzange 2 ragt.
Die Teile 2a, 2b stellen zweiarmige Hebel dar, die über angeformte Lagerböcke 2a1, 2b1 und einen Bolzen 3 miteinander verbunden sind. In einer Aussparung der Teile 2a, 2b liegt zwischen den Lagerböcken 2a1 und 2b1 ein Steuerschieber 4, dessen Langloch 4a über den Bolzen 3 greift.
Am rechten Ende der Teile 2a, 2b ist eine leichte Schraubenfeder 5 eingespannt, die die Greifzange 2 am linken Ende zusammendrückt. Die eigentlichen Greifelemente sind Kegelstümpfe 2a2 und 2b2, die in eine Aussparung 1a des Klobens 1 passen.In Fig. 1 , 1 denotes a block which projects between the halves 2a, 2b of a gripper 2.
The parts 2a, 2b represent two-armed levers which are connected to one another via molded-on bearing blocks 2a1, 2b1 and a bolt 3. In a recess in the parts 2a, 2b there is a control slide 4 between the bearing blocks 2a1 and 2b1, the elongated hole 4a of which extends over the bolt 3.
At the right end of the parts 2a, 2b, a light coil spring 5 is clamped, which compresses the gripping pliers 2 at the left end. The actual gripping elements are truncated cones 2a2 and 2b2, which fit into a recess 1a in the block 1.

Wenn man den Kloben 1 nach rechts schiebt, rastet die Zange 2 ein, wie es in Fig. 2 dargestellt ist. Der Kloben 1 wird dabei mit einer Kraft festgehalten, die durch die Kenndaten der Feder 5 vorgegeben ist.If you push the block 1 to the right, the pliers 2 snap into place, as shown in FIG. 2 . The block 1 is held with a force that is predetermined by the characteristics of the spring 5.

Wenn man jetzt den Steuerschieber 4 nach rechts zieht, wie es in Fig. 3 dargestellt ist, wandert die verbreiterte Steuerfläche 4c zwischen die Schultern der Zange 2. Diese kann jetzt nicht mehr zusammengedrückt werden, so daß der Kloben 1 ganz sicher festgehalten wird.If you now pull the control slide 4 to the right, as shown in Fig. 3 , the widened control surface 4c moves between the shoulders of the pliers 2. This can no longer be pressed together, so that the block 1 is held securely.

In Fig. 4 wird gezeigt, wie die Einheit aus Kloben 1 und Greifzange 2 mit Hilfe des Steuerschiebers 4 nach rechts gezogen wurde, um die Türdichtung fest anzupressen. Der Anpreßdruck wird durch den Motor bestimmt, der ein einstellbares Abschaltmoment aufweist. In Fig. 4 it is shown how the unit consisting of clamp 1 and gripper 2 was pulled to the right with the aid of the control slide 4 in order to press the door seal firmly. The contact pressure is determined by the motor, which has an adjustable switch-off torque.

Die Öffnung des Schrankes verläuft wie folgt:
Wenn der Motor durch einen Öffnungsimpuls umgesteuert wird, wandert die beschriebene Einheit nach links, bis der von der Dichtung ausgeübte Druck ausgeglichen ist. Anschließend läuft der Steuerschieber 4 in seine linke Endstellung, die in Fig. 2 gezeichnet ist. In dieser entriegelten Stellung kann die Tür mit dem Kloben 1 leicht aufgezogen werden, wie es Fig. 1 zeigt.
In Fig. 5 ist die Zangenhälfte 2b in Draufsicht dargestellt. Man erkennt unten den Kegelstumpf 2b2, im mittleren Bereich die Lagerböcke 2b1 und am oberen Rand Stifte 2b3, die zwei gleiche Schraubenfedern aufnehmen.The opening of the cabinet is as follows:
If the motor is reversed by an opening impulse, the described unit moves to the left until the pressure exerted by the seal is balanced. The control slide 4 then runs into its left end position, which is drawn in FIG. 2 . In this unlocked position, the door can be easily opened with the block 1, as shown in FIG. 1 .
In Fig. 5 the pliers half 2b is shown in plan view. One can see the truncated cone 2b2 at the bottom, the bearing blocks 2b1 in the central area and pins 2b3 at the upper edge, which accommodate two identical coil springs.

Fig. 6 zeigt die Greifzange 2 in auseinandergezogener Darstellung. Jede Zangenhälfte ist mit zwei Lagerböcken 2a1 und 2b1 ausgestattet, die kammartig ineinandergreifen und dadurch außerordentlich stabil sind. Der Bolzen 3 ist nicht nur Lagerbolzen, sondern auch Halt und Führung für den Steuerschieber 4, dessen Relativbewegung durch das Langloch 4a begrenzt ist. Fig. 6 shows the gripping pliers 2 in an exploded view. Each pliers half is equipped with two pedestals 2a1 and 2b1, which mesh like a comb and are therefore extremely stable. The bolt 3 is not only a bearing bolt, but also a support and guide for the control slide 4, the relative movement of which is limited by the elongated hole 4a.

In Fig. 7 ist das Teil 2a und der Steuerschieber 4 in Seitenansicht gezeichnet. Außer dem Lagerbock 2a1 und dem Kegelstumpf 2a2 erkennt man einen Stift 2a3 als Führungselement für eine Feder 5.
Der Steuerschieber 4 weist außer dem Langloch 4a Befestigungslöcher 4b für die Zugstange 6 auf.In Fig. 7 the part 2a and the spool 4 is drawn in side view. In addition to the bearing block 2a1 and the truncated cone 2a2, a pin 2a3 can be seen as a guide element for a spring 5.
In addition to the elongated hole 4a, the control slide 4 has fastening holes 4b for the pull rod 6.

In Fig. 8 - 10 ist diese Zugstange 6 in verschiedenen Betriebszuständen zu sehen. Das linke Ende der Stange wird über die Löcher 6a mit dem Steuerschieber 4 verbunden, das rechte ist über einen abgewinkelten Schlitz 6b mit einer in Fig. 10 dargestellten Getriebemotoreinheit 7 gekuppelt. Das Abtriebsrad 8 dieser Einheit trägt einen Exzenterstift 9, der in dem Langloch 10a einer Kulisse 10 gleitet. Am linken Ende weist diese Kulisse einen Kupplungsstift 10b auf, der in dem Schlitz 6b gleitet. Schlitz und Kupplungsstift dienen als Notauslöser für den Verschluß.
Fig. 8 zeigt die Anordnung im Zustand der Notentriegelung, Fig. 9 die Lage der Teile bei geschlossener Tür.
Wenn man zwecks Notentriegelung die unter Zugspannung stehende Stange 6 in Richtung des Pfeiles 11 nach oben drückt, wird der Stift 10b freigegeben, die Stange 6 kann nach links ausweichen und die Zange 2 gibt den Kloben 1 frei.
Soll die Tür nach einer Notentriegelung geschlossen werden , muß der Motor zunächst einen Öffnungsimpuls erhalten. Daraufhin wandert die Kulisse 10 nach links, bis der Stift 10b die Raststellung in dem abgewinkelten Schlitz 6b einnimmt. Dabei fällt die Stange 6 entweder durch ihr Eigengewicht nach unten, oder das Einrasten wird durch eine Feder bewirkt.
In Fig. 10 nimmt die Stange 6 und die Kulisse 10 die linke Endstellung ein, in der die Tür offen oder zur Öffnung vorbereitet ist. Wenn der Motor 13 in Schließrichtung anläuft, wird das Abtriebszahnrad 8 über die Zahnräder 14, 15, 16 in Richtung des Pfeiles 12 bewegt. Der Exzenterstift 9 zieht dabei die Kulisse 10 mit der Stange 6 nach rechts, bis eine bestimmte Schließkraft erreicht ist und der Zustand Fig. 9 entspricht.
Je nach Zustand der Dichtung kann der Drehwinkel des Rades 8 zwischen 100 und etwa 170° liegen.
Durch Feineinstellung wird man einen Winkel zwischen 150 und 170° bevorzugen, weil man dann mit kleinerem Motordrehmoment eine größere Schließkraft erreicht.
Da die Zahnräder 14, 15 als Schneckengetriebe ausgebildet sind, ist der Antrieb selbsthemmend. Ein Sensor für die Stromaufnahme bewirkt, daß sich der Motor beim Erreichen einer gewünschten Schließkraft ausschaltet.
Der Verriegelungsbefehl für den Getriebemotor kann von einem Türkontakt, einem am Schrank oder im Fußbereich angeordneten Taster oder von einer Programmsteuerung ausgehen. Ist bei Erteilung des Verriegelungsbefehls der Kloben nicht in die Greifzange eingefahren, läuft der Motor bis zur Endstellung der Zugstange durch. Da aber kein Stromanstieg erfolgt, wird das Ausbleiben dieses Signals von der Steuerung dazu benutzt, die Zugstange wieder in die Entriegelungsstellung zu bringen.
Zur Öffnung wird die Motorspannung umgepolt. 8-10 , this pull rod 6 can be seen in different operating states. The left end of the rod is connected to the control spool 4 via the holes 6a, and the right end is coupled to a geared motor unit 7 shown in FIG. 10 via an angled slot 6b. The driven wheel 8 of this unit carries an eccentric pin 9 which slides in the slot 10a of a link 10. At the left end, this link has a coupling pin 10b which slides in the slot 6b. Slot and coupling pin serve as an emergency release for the closure.
Fig. 8 shows the arrangement in the state of the emergency release, Fig. 9 shows the position of the parts with the door closed.
If one pushes the rod 6 under tension in the direction of arrow 11 for the purpose of emergency unlocking, the pin 10b is released, the rod 6 can move to the left and the pliers 2 release the block 1.
If the door is to be closed after an emergency release, the motor must first receive an opening impulse. Then the backdrop 10 moves to the left until the pin 10b assumes the latching position in the angled slot 6b. The rod 6 either falls down due to its own weight, or the engagement is effected by a spring.
In Fig. 10 , the rod 6 and the backdrop 10 assume the left end position, in which the door is open or prepared for opening. When the motor 13 starts in the closing direction, the driven gear 8 is moved in the direction of the arrow 12 via the gears 14, 15, 16. The eccentric pin 9 pulls the link 10 with the rod 6 to the right until a certain closing force is reached and the state corresponds to FIG. 9 .
Depending on the condition of the seal, the angle of rotation of the wheel 8 can be between 100 and approximately 170 °.
By fine adjustment, an angle between 150 and 170 ° will be preferred, because then a greater closing force can be achieved with a smaller motor torque.
Since the gears 14, 15 are designed as worm gears, the drive is self-locking. A current consumption sensor causes the motor to switch off when a desired closing force is reached.
The locking command for the geared motor can come from a door contact, a button on the cabinet or in the foot area or from a program control. If the clamp is not inserted into the gripper when the locking command is issued, the motor runs through to the end position of the pull rod. However, since there is no current increase, the absence of this signal is used by the control to bring the pull rod back into the unlocked position.
The motor voltage is reversed for opening.

Fig. 11 zeigt die Antriebseinheit von oben. Der relativ kleine Motor 13 ist leicht schräg angeordnet. Sein Schneckenrad 14 greift in das Rad 15 ein.
Die Länge der Stange 6 ist beliebig. So kann die Antriebseinheit weit hinten im Gehäuse angeordnet werden, wo schädliche Einflüsse durch Hitze oder Feuchtigkeit auszuschließen sind.
Je nach Größe der Tür kann man 1, 2 oder 3 motorische Verschlüsse übereinander anordnen und synchron steuern. 11 shows the drive unit from above. The relatively small motor 13 is arranged slightly obliquely. His worm wheel 14 engages the wheel 15.
The length of the rod 6 is arbitrary. In this way, the drive unit can be located far back in the housing, where harmful effects from heat or moisture can be excluded.
Depending on the size of the door, 1, 2 or 3 motorized locks can be arranged one above the other and controlled synchronously.

Gewerbliche VerwertbarkeitCommercial usability

Der beschriebene Türverschluß ist dazu bestimmt, bei Heißgeräten oder auch anderen technischen Apparaten, wie z.B. Zentrifugen, eingesetzt zu werden.
Besonders vorteilhaft ist dabei, daß der Bedienende die Hände frei hat.
Die Wartungsintervalle für das System sind sehr groß, weil die der Hitze oder besonderen Atmosphäre ausgesetzte Greifzange keine empfindlichen Teile aufweist und weil die alternde Dichtung immer mit konstanter Schließkraft angepreßt wird. The door lock described is intended to be used in hot appliances or other technical devices such as centrifuges.
It is particularly advantageous that the operator has his hands free.
The maintenance intervals for the system are very long because the gripper exposed to heat or a special atmosphere has no sensitive parts and because the aging seal is always pressed with constant closing force.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
KlobenKloben
1a1a
Aussparungrecess
22
Greifzangepliers
2a, 2b2a, 2b
Zangenhälftentongs
2a1, 2b12a1, 2b1
Lagerböckebearing blocks
2a2, 2b22a2, 2b2
Kegelstümpfetruncated cones
2a3, 2b32a3, 2b3
Stiftepencils
33
Bolzenbolt
44
Steuerschieberspool
4a4a
LanglochLong hole
4b4b
Befestigungslöchermounting holes
4c4c
Steuerflächecontrol surface
55
Schraubenfedercoil spring
66
Zugstangepull bar
6a6a
Befestigungslöchermounting holes
6b6b
abgewinkelter Schlitzangled slot
77
GetriebemotoreinheitGeared motor unit
88th
Abtriebsradoutput gear
99
Exzenterstifteccentric
1010
Kulissescenery
10a10a
LanglochLong hole
10b10b
Kupplungsstiftcoupling pin
11, 1211, 12
Pfeilarrow
1313
Motorengine
14, 15, 1614, 15, 16
Zahnrädergears

Claims (6)

  1. Motorised closure for units with casing and door featuring an elastic seal surround,
    characterised by the fact, that
    the filleted recess of insert (1) on the door engages in a calliper mechanism (2) consisting of two jaws (2a and 2b) pivoted on a bolt (3)and between which a motor-activated operating slide (4) is fitted, whereby at one end of its travel the slide releases the calliper opening and at the other locks the calliper and insert, so that the motor(13)can pull the door against the housing with an adjustable force in such a way that that the direction of traction is coincidental with the direction of movement of the insert and operating slide.
  2. Motorised closure as at Claim 1, characterised by the fact
    that the calliper jaws (2a and 2b) feature truncated conical jaws(2a2 and 2b2)at one extremity and at the other are provided with control surfaces and
    that between them bearing blocks(2a1 and 2b1)are fitted, whose bolt (3) engages through the slotted hole (4a)of operating slide(4).
  3. Motorised closure as at Claim 1 and 2, characterised by the fact
    that a coil spring (5) fitted between the two calliper halves (2a and 2b)compresses the conical tapers (2a2 and 2b2) which act as a gripping device.
  4. Motorised closure as at Claim 1 - 3, characterised by the fact
    that the operating slide (4) is connected via a pull rod (6)to a motor transmission unit (7)consisting of the motor (13), gear wheels (14 - 16), a driven wheel (8), an eccentric pin (9) and a rocker arm (10) and which disconnects upon reaching an adjustable tractive force.
  5. Motorised closure as at Claim 1, characterised by the fact
    that the closing motion of the motor (13) is triggered by a door contact, a sensor or a programmed control.
  6. Motorised closure as at Claim 4, characterised by the fact
    that pull rod (6) features a right-angled slot (6b) in which link pin (10b) of rocker arm (10) is pivoted in such a way that pull rod (6) is released in the direction of opening when lateral pressure is applied at an angle to its longitudinal orientation.
EP19970119345 1997-11-05 1997-11-05 Motor actuated lock for door of apparatus Expired - Lifetime EP0919687B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59710094T DE59710094D1 (en) 1997-11-05 1997-11-05 Motorized lock for appliance doors
ES97119345T ES2196236T3 (en) 1997-11-05 1997-11-05 MOTORIZED CLOSURE FOR APPARATUS DOORS.
EP19970119345 EP0919687B1 (en) 1997-11-05 1997-11-05 Motor actuated lock for door of apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970119345 EP0919687B1 (en) 1997-11-05 1997-11-05 Motor actuated lock for door of apparatus

Publications (2)

Publication Number Publication Date
EP0919687A1 EP0919687A1 (en) 1999-06-02
EP0919687B1 true EP0919687B1 (en) 2003-05-14

Family

ID=8227577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970119345 Expired - Lifetime EP0919687B1 (en) 1997-11-05 1997-11-05 Motor actuated lock for door of apparatus

Country Status (3)

Country Link
EP (1) EP0919687B1 (en)
DE (1) DE59710094D1 (en)
ES (1) ES2196236T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255790A (en) * 2014-05-01 2016-12-21 伊利诺斯工具制品有限公司 Low closing forces motorized latch
EP3307969B1 (en) 2015-07-28 2019-06-12 MACO Technologie GmbH Closure for a window, a door, or the like

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014202362B4 (en) 2014-02-10 2018-12-13 Kendrion Kuhnke Automation Gmbh Motor-driven closure device, hot device and method for operating a motorized closure device
CN112031531B (en) * 2020-09-07 2021-09-17 安徽广鼎铸造有限公司 Automatic locking structure for well lid and using method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515421A (en) * 1968-09-16 1970-06-02 Hartwell Corp Opposed jaw latch
FR2426139A1 (en) * 1978-05-19 1979-12-14 Provost Roger Pincer-action bolt for doors etc. - uses door mounted spring-loaded pincer fitting engaging neck of frame mounted stud with enlarged head
IT1195347B (en) * 1986-10-17 1988-10-12 Roltra Spa ELECTRICALLY OPERATED LOCK FOR VEHICLES
US4851742A (en) * 1989-01-26 1989-07-25 General Motors Corporation Compartment panel control apparatus for a motor vehicle
US4971370A (en) * 1989-04-25 1990-11-20 Lectron Products, Inc. Self-releasing deck lid latch
JP3074116B2 (en) * 1994-12-12 2000-08-07 株式会社大井製作所 Door closure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255790A (en) * 2014-05-01 2016-12-21 伊利诺斯工具制品有限公司 Low closing forces motorized latch
CN106255790B (en) * 2014-05-01 2019-02-15 伊利诺斯工具制品有限公司 Low closing forces motorized latch
EP3307969B1 (en) 2015-07-28 2019-06-12 MACO Technologie GmbH Closure for a window, a door, or the like

Also Published As

Publication number Publication date
EP0919687A1 (en) 1999-06-02
ES2196236T3 (en) 2003-12-16
DE59710094D1 (en) 2003-06-18

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