EP0048290B1 - Bank for the receipt of several print hammer units - Google Patents

Bank for the receipt of several print hammer units Download PDF

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Publication number
EP0048290B1
EP0048290B1 EP80105617A EP80105617A EP0048290B1 EP 0048290 B1 EP0048290 B1 EP 0048290B1 EP 80105617 A EP80105617 A EP 80105617A EP 80105617 A EP80105617 A EP 80105617A EP 0048290 B1 EP0048290 B1 EP 0048290B1
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EP
European Patent Office
Prior art keywords
bank
frame
pressure
ram
units
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
Application number
EP80105617A
Other languages
German (de)
French (fr)
Other versions
EP0048290A1 (en
Inventor
Armin Bohg
Kurt Hartmann
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IBM Deutschland GmbH
International Business Machines Corp
Original Assignee
IBM Deutschland GmbH
International Business Machines Corp
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 IBM Deutschland GmbH, International Business Machines Corp filed Critical IBM Deutschland GmbH
Priority to EP80105617A priority Critical patent/EP0048290B1/en
Priority to DE8080105617T priority patent/DE3067861D1/en
Priority to US06/265,749 priority patent/US4388861A/en
Priority to JP56107151A priority patent/JPS5775876A/en
Priority to BR8105782A priority patent/BR8105782A/en
Publication of EP0048290A1 publication Critical patent/EP0048290A1/en
Application granted granted Critical
Publication of EP0048290B1 publication Critical patent/EP0048290B1/en
Expired legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00Hammer-impression mechanisms
    • B41J9/02Hammers; Arrangements thereof
    • B41J9/127Mounting of hammers

Definitions

  • the invention relates to a bank for receiving a plurality of pressure ram units.
  • Pressure rams in this regard are described in German patent applications DE-A-2 926 276 and DE-A-3 018 407. They are especially intended for use in impact printers.
  • the print hammers are carried by leaf springs, the energy of which is stored in the deflected state and is used to actuate the print hammer.
  • the pressure hammer is triggered in an electromagnetic manner by switching off the excitation of an electromagnet which retains the pressure hammer.
  • Line printers with a large number of character positions have so-called print hammer banks. These print hammer banks are used to hold individual print hammer units, each of which is assigned to a specific printing position.
  • the pressure hammer bench described in German Patent 1,276,380 has a large number of special features: the pretensioned pressure hammers are held by an electromagnet common to all pressure hammers, the carrier of which, fixed on leaf springs and displaceable in parallel, executes a reciprocating movement directed perpendicular to the spelling, which the The print hammers are retrieved after the stop.
  • damper masses are provided for the individual pressure hammers, which absorb the energy of the pressure hammers moving back after the pressure stop and lock the pressure hammers by means of resilient locks until the magnetic yokes of the holding magnets have gripped the pressure hammers in this front extreme position.
  • damper masses are fastened on a rotatably mounted support which extends over all pressure points and which is offset downwards with its pivot point relative to the resilient locks and which briefly swings out by means of a cam mechanism to release the pressure hammers.
  • each print hammer assembly consists of a hinged armature solenoid, a separate print hammer, and a plunger to transfer the kinetic energy of the hinged armature to the print hammer.
  • Each electromagnet is screwed on with two screws on a base plate common to all pressure hammer units; these screws must be loosened for each flight time adjustment and then tightened again (264 pieces!).
  • Each electromagnet fully transmits the recoil pulse that occurs when the armature accelerates to the base plate. It is not possible to replace individual print hammer units.
  • Electromagnetic drive units as can be used in pressure ram units for the bench described below, are described in German patent application DE-A-3 018 407. From this application it can be seen that the actual electromagnetic drive unit is accommodated in the recess of a flat, narrow frame, and that the actual rod-like pressure ram is guided in two bores of this frame. Furthermore, it is stated that this plunger cooperates at its end remote from the pressure with a spring pin which is fastened on one side and runs in an elongated hole in the plunger. This spring pin is used to retrieve the pressure ram after a working stroke. Details for understanding the mode of operation of the electromagnetic pressure tappet drive unit are not to be repeated here, since they are not necessary for understanding the bank described below for accommodating a plurality of pressure tappet units.
  • FIG. 1 shows a perspective view of a bench for accommodating a plurality of pressure ram units.
  • the pressure tappet units are marked with 5 and 6, the frame with 5-1 and 6-1.
  • tappet units 5 and 6 are shown, although much more can be accommodated in bank 1.
  • a pressure tappet unit (see also FIG. 2) 6 consists of a flat, narrow frame 6-1.
  • the frame of each pressure tappet unit is provided with a recess 7, in which the actual electromagnetic drive unit for the pressure tappet (not shown) is arranged.
  • the plunger, not shown, is guided in the holes 10 and 11 of the frame 5-1 and 6-1.
  • Each frame 5 and 6 has a keel-like part at its front end and two frame legs 9-1 and 9-2 at its rear end.
  • the frame legs each have a V-shaped groove 9-1-1 and 9-2-1 at their rear end (see also FIG. 3).
  • On the upper frame leg 9-2 an angle piece 16 is attached by means of the screw 17, in which an adjusting screw 15 extends.
  • This set screw serves as a stop for a stop bar 13, which has a cutting edge bearing 14 in the lower frame leg 9-1 and extends from there through an elongated hole 12 in the upper frame leg 9-2 upwards. 2, the stop bar is held against the set screw end by a tension spring 27. From Fig. 2 it can also be seen how the already mentioned spring pin 23 interacts with the actual plunger 22. This spring pin 23 is connected to a tab 24 which is connected by means of the screw 25 on the upper frame part. When the electromagnetic drive unit (not shown) is energized, the plunger 22 is accelerated in the working direction D. After the printing process has been completed, it is returned to its starting position by the spring pin 23, in which it is pressed against the stop bar 13 by the force of the spring pin.
  • the bank 1 has a U-shaped shape.
  • the front U-leg 4 has to accommodate the keel-like front parts 5-2, 6-2 of the frame 5-1 and 6-1 vertically extending profile grooves 4-1, 4-2, which are adapted to the keel shape.
  • the rear U-leg 2 of the bench 1 consists of two sections: a straight leg part 2-1 and an upper inwardly angled leg part 2-2. This part 2-2 in turn has vertical profile grooves 2-2-1, 2-2-2 for receiving the individual tappet units 5 and 6. These profile grooves serve to receive a pin 19 which runs in the V-shaped grooves 9-1-1 of the lower and upper frame legs 9-1 and 9-2 of the frame 6-1. These latter profile grooves are aligned with one another.
  • FIG. 2 which shows a simplified side view (from arrow direction P, FIG. 1) of the bench with the pressure ram unit 6, it can be seen in particular how the frame leg of the frame 6-1 between the lower 9-1 and upper 9-2 arranged pin 19 rests in its central part in the rear profile groove of the bank.
  • This pin should have a resilient effect in the pressure direction D, so that the recoil which occurs when the pressure ram 22 is fired is transmitted to the bench 1 only in a damped manner. 2 that the pin 19 is accommodated with its upper part in a bore of the angle piece 16.
  • FIG. 3 shows an excerpted sectional view of the bench (with two pressure tappet units) along section line 3-3 in FIG. 2
  • FIG. 4 shows an excerpted sectional illustration of the bench (with two pressure tappet units) according to section line 4-4 in FIG 2 is reproduced.
  • FIG. 3 thus relates to the mounting and guidance of the rear parts of the pressure tappet units
  • FIG. 4 relates to the mounting and guidance of the front parts of the pressure tappet units.
  • V-shaped profile grooves in part 2-2 of leg 2 of bank 1 are marked 2-2-1 and 2-2-2. It can be seen that these profile grooves have a different depth and that the pins 19 of the frame run at the bottom of these profile grooves.
  • the V-shaped profile grooves 4-1, 4-2 have a different depth for adjacent frames.
  • the profile groove for frame 6-1 is marked with 4-2, that for frame 5-1 with 4-1.
  • These V-shaped grooves have a different depth, taking into account the frame offset. They are adapted to the keel-like front part 6-2, 5-2 of the frames 6-1 and 5-1, the groove width for the deeper grooves being somewhat wider than the actual frame width.
  • FIG. 5 shows a simplified illustration of a pull-out device for removing a pressure ram unit from the bank.
  • This device is a correspondingly handle-shaped bent wire 31 with angled ends, which in horizontal bores of the Elbow 29 or (30) can be inserted in the front frame part. In this way it is possible to remove the individual frame units from the bank 1 as required (with a corresponding loosening of the front or rear frame legs 2, 4) and to reinsert them into the bank.
  • Such Lokk réelle z. B. by partially loosening a screw connection, which serves to join the U-legs 4 and 2 of the bench with the base 3.

Description

Die Erfindung betrifft eine Bank zur Aufnahme mehrerer Druckstößeleinheiten. Diesbezügliche Druckstößel sind in den deutschen Patentanmeldungen DE-A-2 926 276 und DE-A-3 018 407 beschrieben. Sie sind insbesondere zur Verwendung in Anschlagdruckern gedacht.The invention relates to a bank for receiving a plurality of pressure ram units. Pressure rams in this regard are described in German patent applications DE-A-2 926 276 and DE-A-3 018 407. They are especially intended for use in impact printers.

Es ist eine Vielzahl von Druckhammerantrieben bekannt, die nach unterschiedlichen Prinzipien arbeiten.A large number of printing hammer drives are known which operate according to different principles.

Nach der deutschen Patentschrift DE-C-1 276 380 werden die Druckhämmer von Blattfedern getragen, deren im ausgelenkten Zustand gespeicherte Energie zur Druckhammerbetätigung dient. Das Auslösen des Druckhammers erfolgt auf elektromagnetische Weise durch das Ausschalten der Erregung eines den Druckhammer zurückhaltenden Elektromagneten.According to the German patent DE-C-1 276 380, the print hammers are carried by leaf springs, the energy of which is stored in the deflected state and is used to actuate the print hammer. The pressure hammer is triggered in an electromagnetic manner by switching off the excitation of an electromagnet which retains the pressure hammer.

Zeilendrucker mit einer Vielzahl von Zeichenpositionen weisen sogenannte Druckhammerbänke auf. Diese Druckhammerbänke dienen der Aufnahme einzelner Druckhammereinheiten, von denen jede einer bestimmten Druckposition zugeordnet ist. Die im deutschen Patent 1 276 380 beschriebene Druckhammerbankweist eine Vielzahl von besonderen Merkmalen auf: Die vorgespannten Druckhämmer werden durch einen allen Druckhämmern gemeinsamen Elektromagneten gehalten, dessen auf Blattfedern befestigter und parallel verschiebbarer Träger eine senkrecht zur Schreibweise gerichtete hin-und hergehende Bewegung ausführt, die der Rückholung der Druckhämmer nach dem Anschlag dient. Des weiteren sind für die einzelnen Druckhämmer elastisch befestigte Dämpfermassen vorgesehen, die die Energie der sich nach dem Druckanschlag zurückbewegenden Druckhämmer aufnehmen und mittels federnder Sperren die Druckhämmer solange verriegeln, bis die Magnetjoche des Haltemagneten in dieser vorderen Extremlage die Druckhämmer erfaßt haben. Außerdem sind die Dämpfermassen auf einem sich über alle Druckstellen erstreckenden, drehbar gelagerten, mit seinem Drehpunkt gegenüber den federnden Sperren nach unten versetzten Träger befestigt, der mittels eines Nokkengetriebes zur Freigabe der Druckhämmer kurzzeitig ausschwenkt.Line printers with a large number of character positions have so-called print hammer banks. These print hammer banks are used to hold individual print hammer units, each of which is assigned to a specific printing position. The pressure hammer bench described in German Patent 1,276,380 has a large number of special features: the pretensioned pressure hammers are held by an electromagnet common to all pressure hammers, the carrier of which, fixed on leaf springs and displaceable in parallel, executes a reciprocating movement directed perpendicular to the spelling, which the The print hammers are retrieved after the stop. Furthermore, elastically fastened damper masses are provided for the individual pressure hammers, which absorb the energy of the pressure hammers moving back after the pressure stop and lock the pressure hammers by means of resilient locks until the magnetic yokes of the holding magnets have gripped the pressure hammers in this front extreme position. In addition, the damper masses are fastened on a rotatably mounted support which extends over all pressure points and which is offset downwards with its pivot point relative to the resilient locks and which briefly swings out by means of a cam mechanism to release the pressure hammers.

In einem typischen schnellen Anschlagdrukker, z. B. wie den IBM-Drucker Modell 3203, besteht jede Druckhammereinheit aus einem Klappanker-Elektromagneten, einem separaten Druckhammer und einem Stößel zur Übertragung der kinetischen Energie des Klappankers auf den Druckhammer. Jeder Elektromagnet ist mit zwei Schrauben auf einer allen Druckkhammereinheiten gemeinsamen Grundplatte angeschraubt; diese Schrauben müssen zu jeder Flugzeitjustage gelockert und anschließend wieder festgezogen werden (264 Stück!). Jeder Elektromagnet überträgt den bei der Beschleunigung des Ankers auftretenden Rückstoßimpuls voll auf die Grundplatte. Ein Auswechseln einzelner Druckhammereinheiten ist nicht möglich.In a typical fast stroke printer, e.g. For example, like the IBM Model 3203 printer, each print hammer assembly consists of a hinged armature solenoid, a separate print hammer, and a plunger to transfer the kinetic energy of the hinged armature to the print hammer. Each electromagnet is screwed on with two screws on a base plate common to all pressure hammer units; these screws must be loosened for each flight time adjustment and then tightened again (264 pieces!). Each electromagnet fully transmits the recoil pulse that occurs when the armature accelerates to the base plate. It is not possible to replace individual print hammer units.

Zur Vermeidung dieser Nachteile ist es Aufgabe der Erfindung, eine Bank zur Aufnahme mehrerer Druckstößeleinheiten vorzusehen, die folgenden Forderungen genügt:

  • Jede Druckstößeleinheit soll ohne Zerlegen der Bank einzeln auswechselbar sein;
  • auf die Hammerbank soll nicht der volle Rückstoßimpuls übertragen werden;
  • wenige Befestigungselemente sollen zur Montage aller Druckstößeleinheiten genügen.
To avoid these disadvantages, it is an object of the invention to provide a bench for accommodating a plurality of pressure ram units which meets the following requirements:
  • Each ram unit should be individually replaceable without disassembling the bench;
  • the full recoil pulse should not be transmitted to the hammer bank;
  • a few fastening elements should suffice for the assembly of all pressure tappet units.

Diese Aufgabe der Erfindung wird in vorteilhafter Weise durch die im kennzeichnenden Teil des Anspruches 1 genannten Maßnahmen gelöst.This object of the invention is achieved in an advantageous manner by the measures mentioned in the characterizing part of claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous developments of the invention can be found in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigt

  • Fig. 1 eine perspektivische Ansicht einer Bank zur Aufnahme mehrerer Druckstößeleinheiten,
  • Fig. eine vereinfachte Seitenansicht (aus Pfeilrichtung P) der Bank gemäß Fig. 1 mit einer Druckstößeleinheit,
  • Fig. 3 eine auszugsweise Schnittdarstellung der Bank mit zwei Druckstößeleinheiten gemäß der Schnittlinie 3-3 in Fig. 2,
  • Fig. 4 eine auszugsweise Schnittdarstellung der Bank mit zwei Druckstößeleinheiten gemäß der Schnittlinie 4-4 in Fig. 2,
  • Fig. 5 eine Ausziehvorrichtung für das Herausnehmen einer Druckstößeleinheit.
An embodiment of the invention is shown in the drawings and will be described in more detail below. It shows
  • 1 is a perspective view of a bench for receiving a plurality of pressure ram units,
  • FIG. 1 shows a simplified side view (from arrow direction P) of the bench according to FIG. 1 with a pressure tappet unit,
  • 3 is a partial sectional view of the bench with two pressure ram units according to section line 3-3 in Fig. 2,
  • 4 is a partial sectional view of the bench with two pressure ram units according to section line 4-4 in FIG. 2,
  • 5 shows a pull-out device for removing a pressure tappet unit.

Elektromagnetische Antriebseinheiten, wie sie in Druckstößeleinheiten für die nachfolgend beschriebene Bank Verwendung finden können, sind in der deutschen Patentanmeldung DE-A-3 018 407 beschrieben. Dieser Anmeldung ist zu entnehmen, daß die eigentliche elektromagnetische Antriebseinheit in der Aussparung eines flachen schmalen Rahmens untergebracht ist, und daß der eigentliche stabähnliche Druckstößel in zwei Bohrungen dieses Rahmens geführt ist. Des weiteren ist ausgesagt, daß dieser Stößel an seinem druckfernen Ende mit einem in einem Langloch des Stößels verlaufenden einseitig befestigten Federstift zusammenwirkt. Dieser Federstift dient dem Zurückholen des Druckstößels nach einem Arbeitshub. Einzelheiten zum Verständnis der Wirkungsweise der elektromagnetischen Druckstößelantriebseinheit seien hier nicht wiederholt, da sie für das Verständnis der nachfolgend beschriebenen Bank zur Aufnahme mehrerer Druckstößeleinheiten nicht erforderlich sind.Electromagnetic drive units, as can be used in pressure ram units for the bench described below, are described in German patent application DE-A-3 018 407. From this application it can be seen that the actual electromagnetic drive unit is accommodated in the recess of a flat, narrow frame, and that the actual rod-like pressure ram is guided in two bores of this frame. Furthermore, it is stated that this plunger cooperates at its end remote from the pressure with a spring pin which is fastened on one side and runs in an elongated hole in the plunger. This spring pin is used to retrieve the pressure ram after a working stroke. Details for understanding the mode of operation of the electromagnetic pressure tappet drive unit are not to be repeated here, since they are not necessary for understanding the bank described below for accommodating a plurality of pressure tappet units.

In Fig. 1 ist eine perspektivische Ansicht einer Bank zur Aufnahme mehrerer Druckstößeleinheiten gezeigt. Die Druckstößeleinheiten sind mit 5 und 6 gekennzeichnet, deren Rahmen mit 5-1 und 6-1 bezeichnet sind.1 shows a perspective view of a bench for accommodating a plurality of pressure ram units. The pressure tappet units are marked with 5 and 6, the frame with 5-1 and 6-1.

Zur Vereinfachung der Darstellung sind nur zwei Druckstößeleinheiten 5 und 6 gezeigt, wenn auch ungleich mehr in der Bank 1 Aufnahme finden können.To simplify the illustration, only two tappet units 5 and 6 are shown, although much more can be accommodated in bank 1.

Aus der Darstellung ist ersichtlich, daß eine Druckstößeleinheit (siehe auch Fig. 2) 6 aus einem flachen, schmalen Rahmen 6-1 besteht. Der Rahmen jeder Druckstößeleinheit ist mit einer Aussparung 7 versehen, in der die eigentliche elektromagnetische Antriebseinheit für den Druckstößel (nicht dargestellt) angeordnet ist. Der nicht dargestellte Druckstößel wird in den Bohrungen 10 und 11 der Rahmen 5-1 und 6-1 geführt. Jeder Rahmen 5 und 6 hat an seinem vorderen Ende einen kielartigen Teil und an seinem hinteren Ende jeweils zwei Rahmenschenkel 9-1 und 9-2. Die Rahmenschenkel haben an ihrem hinteren Ende jeweils eine V-förmige Nut 9-1-1 und 9-2-1 (siehe auch Fig. 3). Am oberen Rahmenschenkel 9-2 ist mitttels der Schraube 17 ein Winkelstück 16 angebracht, in welchem eine Stellschraube 15 verläuft. Diese Stellschraube dient als Anschlag für eine Anschlagleiste 13, welche im unteren Rahmenschenkel 9-1 eine Schneidenlagerung 14 hat und sich von dort durch ein Langloch 12 im oberen Rahmenschenkel 9-2 nach oben erstreckt. Wie aus Fig. 2 hervorgeht, wird die Anschlagsleiste gegen das Stellschraubenende von einer Zugfeder 27 gehalten. Aus Fig. 2 ist ebenfalls zu erkennen, wie der bereits erwähnte Federstift 23 mit dem eigentlichen Druckstößel 22 zusammenwirkt. Dieser Federstift 23 ist mit einer Lasche 24 verbunden, die mit Hilfe der Schraube 25 auf dem oberen Rahmenteil verbunden ist. Durch Erregung der nicht dargestellten elektromagnetischen Antriebseinheit erfährt der Stößel 22 eine Beschleunigung in Arbeitsrichtung D. Nach erfolgtem Druckvorgang wird er durch den Federstift 23 in seine Ausgangsposition zurückgeführt, in der er durch die Kraft des Federstiftes gegen die Anschlagleiste 13 gedrückt wird.It can be seen from the illustration that a pressure tappet unit (see also FIG. 2) 6 consists of a flat, narrow frame 6-1. The frame of each pressure tappet unit is provided with a recess 7, in which the actual electromagnetic drive unit for the pressure tappet (not shown) is arranged. The plunger, not shown, is guided in the holes 10 and 11 of the frame 5-1 and 6-1. Each frame 5 and 6 has a keel-like part at its front end and two frame legs 9-1 and 9-2 at its rear end. The frame legs each have a V-shaped groove 9-1-1 and 9-2-1 at their rear end (see also FIG. 3). On the upper frame leg 9-2 an angle piece 16 is attached by means of the screw 17, in which an adjusting screw 15 extends. This set screw serves as a stop for a stop bar 13, which has a cutting edge bearing 14 in the lower frame leg 9-1 and extends from there through an elongated hole 12 in the upper frame leg 9-2 upwards. 2, the stop bar is held against the set screw end by a tension spring 27. From Fig. 2 it can also be seen how the already mentioned spring pin 23 interacts with the actual plunger 22. This spring pin 23 is connected to a tab 24 which is connected by means of the screw 25 on the upper frame part. When the electromagnetic drive unit (not shown) is energized, the plunger 22 is accelerated in the working direction D. After the printing process has been completed, it is returned to its starting position by the spring pin 23, in which it is pressed against the stop bar 13 by the force of the spring pin.

Im folgenden wird beschrieben, wie die Druckstößeleinheiten in der Bank 1 Aufnahme finden.The following describes how the pressure tappet units are accommodated in bank 1.

Die Bank 1 hat eine U-förmigähnliche Form. Der vordere U-Schenkel 4 weist zur Aufnahme der kielartigen vorderen Teile 5-2, 6-2 der Rahmen 5-1 und 6-1 vertikal verlaufende Profilrillen 4-1, 4-2 auf, die der Kielform angepaßt sind. Der hintere U-Schenkel 2 der Bank 1 besteht aus zwei Abschnitten: einem geradlinig verlaufenden Schenkelteil 2-1 und einem oberen nach innen abgewinkelten Schenkelteil 2-2. Dieser Teil 2-2 weist zur Aufnahme der einzelnen Druckstößeleinheiten 5 und 6 wiederum vertikale Profilrillen 2-2-1, 2-2-2 auf. Diese Profilrillen dienen der Aufnahme eines Stiftes 19, der in den V-förmigen Rillen 9-1-1 des unteren und oberen Rahmenschenkels 9-1 und 9-2 des Rahmens 6-1 verläuft. Diese letztgenannten Profilrillen sind aufeinander ausgerichtet. Sie verlaufen ebenso wie die Profilrillen des Teils 2-2 vertikal. Im zusammengebauten Zustand sind die beiden U-Schenkel 4 und 2 der Bank mit der Basis 3 verbunden. Diese Verbindung kann mittels nicht dargestellter Schrauben lösbar sein. Es sind jedoch auch andere Verbindungen, z. B. Schnappverbindungen möglich. Die Profilrillen in den U-Schenkeln der Bank für benachbarte Rahmen haben eine unterschiedliche Tiefe, so daß jeweils nur alle geradzahligen bzw. ungeradzahligen Rahmen miteinander fluchten. Dieser Versatz bewirkt, daß sich benachbarte Druckstößeleinheiten im Betrieb nicht merklich störend (z. B. magnetisch) gegenseitig beeinflussen.The bank 1 has a U-shaped shape. The front U-leg 4 has to accommodate the keel-like front parts 5-2, 6-2 of the frame 5-1 and 6-1 vertically extending profile grooves 4-1, 4-2, which are adapted to the keel shape. The rear U-leg 2 of the bench 1 consists of two sections: a straight leg part 2-1 and an upper inwardly angled leg part 2-2. This part 2-2 in turn has vertical profile grooves 2-2-1, 2-2-2 for receiving the individual tappet units 5 and 6. These profile grooves serve to receive a pin 19 which runs in the V-shaped grooves 9-1-1 of the lower and upper frame legs 9-1 and 9-2 of the frame 6-1. These latter profile grooves are aligned with one another. Like the profile grooves of part 2-2, they run vertically. In the assembled state, the two U-legs 4 and 2 of the bench are connected to the base 3. This connection can be released by means of screws, not shown. However, there are other connections, e.g. B. snap connections possible. The profile grooves in the U-legs of the bench for adjacent frames have a different depth, so that only all even or odd frames are aligned with each other. This offset has the effect that adjacent plunger units do not have a noticeably disturbing (eg magnetic) influence on one another during operation.

Aus Fig. 2, welche eine vereinfachte Seitenansicht (aus Pfeilrichtung P, Fig. 1) der Bank mit der Druckstößeleinheit 6 darstellt, ist insbesondere zu erkennen, wie der zwischen dem unteren 9-1 und oberen 9-2 Rahmenschenkel des Rahmens 6-1 angeordnete Stift 19 in seinem mittleren Teil in der hinteren Profilrille der Bank anliegt. Dieser Stift soll eine in Druckrichtung D federnde Wirkung aufweisen, so daß der beim Feuern des Druckstößels 22 auftretende Rückstoß nur gedämpft auf die Bank 1 übertragen wird. Des weiteren ist der Fig. 2 zu entnehmen, daß der Stift 19 mit seinem oberen Teil in einer Bohrung des Winkelstücks 16 Aufnahme findet.From FIG. 2, which shows a simplified side view (from arrow direction P, FIG. 1) of the bench with the pressure ram unit 6, it can be seen in particular how the frame leg of the frame 6-1 between the lower 9-1 and upper 9-2 arranged pin 19 rests in its central part in the rear profile groove of the bank. This pin should have a resilient effect in the pressure direction D, so that the recoil which occurs when the pressure ram 22 is fired is transmitted to the bench 1 only in a damped manner. 2 that the pin 19 is accommodated with its upper part in a bore of the angle piece 16.

Der gegenseitige Versatz der einzelnen Druckstößeleinheiten ist insbesondere aus den Fig. 1, 3 und 4 zu erkennen.The mutual offset of the individual plunger units can be seen in particular from FIGS. 1, 3 and 4.

In Fig. 3 ist eine auszugsweise Schnittdarstellung der Bank (mit zwei Druckstößeleinheiten) gemäß der Schnittlinie 3-3 in Fig. 2 gezeigt, während in Fig. 4 eine auszugsweise Schnittdarstellung der Bank (mit zwei Druckstößeleinheiten) gemäß der Schnittlinie 4-4 in Fig. 2 wiedergegeben ist.FIG. 3 shows an excerpted sectional view of the bench (with two pressure tappet units) along section line 3-3 in FIG. 2, while FIG. 4 shows an excerpted sectional illustration of the bench (with two pressure tappet units) according to section line 4-4 in FIG 2 is reproduced.

Fig. 3 bezieht sich somit auf die Halterung und Führung der hinteren Teile der Druckstößeleinheiten, während sich Fig. 4 auf die Halterung und Führung der vorderen Teile der Druckstößeleinheiten bezieht.3 thus relates to the mounting and guidance of the rear parts of the pressure tappet units, while FIG. 4 relates to the mounting and guidance of the front parts of the pressure tappet units.

Die V-förmigen Profilrillen im Teil 2-2 des Schenkels 2 der Bank 1 sind 2-2-1 und 2-2-2 gekennzeichnet. Es ist zu erkennen, daß diese Profilrillen eine unterschiedliche Tiefe haben, und daß am Grunde dieser Profilrillen die Stifte 19 der Rahmen verlaufen.The V-shaped profile grooves in part 2-2 of leg 2 of bank 1 are marked 2-2-1 and 2-2-2. It can be seen that these profile grooves have a different depth and that the pins 19 of the frame run at the bottom of these profile grooves.

Zur Führung der vorderen Rahmenteile sei auf Abbildung 4 verwiesen. Die V-förmigen Profilrillen 4-1, 4-2 haben für benachbarte Rahmen wieder eine unterschiedliche Tiefe. Die Profilrille für den Rahmen 6-1 ist mit 4-2, die für den Rahmen 5-1 mit 4-1 gekennzeichnet. Diese V-förmigen Rillen haben unter Beachtung des Rahmenversatzes wieder eine unterschiedliche Tiefe. Sie sind dem kielartigen vorderen Teil 6-2, 5-2 der Rahmen 6-1 und 5-1 angepaßt, wobei die Rillenbreite für die tieferliegenden Rillen etwas breiter als die eigentliche Rahmenbreite sind.Please refer to Figure 4 for guidance of the front frame parts. The V-shaped profile grooves 4-1, 4-2 have a different depth for adjacent frames. The profile groove for frame 6-1 is marked with 4-2, that for frame 5-1 with 4-1. These V-shaped grooves have a different depth, taking into account the frame offset. They are adapted to the keel-like front part 6-2, 5-2 of the frames 6-1 and 5-1, the groove width for the deeper grooves being somewhat wider than the actual frame width.

In Fig. 5 ist eine vereinfachte Darstellung einer Ausziehvorrichtung für das Herausnehmen einer Druckstößeleinheit aus der Bank gezeigt. Diese Vorrichtung ist ein entsprechend henkelförmig gebogener Draht 31 mit abgewinkelten Enden, die in horizontal verlaufende Bohrungen des Winkelstücks 29 bzw. (30) im vorderen Rahmenteil eingefügt werden können. Auf diese Weise ist es möglich, die einzelnen Rahmeneinheiten bei Bedarf (unter entsprechender Lockerung des vorderen bzw. hinteren Rahmenschenkels 2, 4) aus der Bank 1 zu entnehmen und diese auch wieder in die Bank einzusetzen. Eine solche Lokkerung kann z. B. durch teilweises Lösen einer Schraubverbindung erfolgen, die dem Zusammenfügen der U-Schenkel 4 und 2 der Bank mit der Basis 3 dient.5 shows a simplified illustration of a pull-out device for removing a pressure ram unit from the bank. This device is a correspondingly handle-shaped bent wire 31 with angled ends, which in horizontal bores of the Elbow 29 or (30) can be inserted in the front frame part. In this way it is possible to remove the individual frame units from the bank 1 as required (with a corresponding loosening of the front or rear frame legs 2, 4) and to reinsert them into the bank. Such Lokkerung z. B. by partially loosening a screw connection, which serves to join the U-legs 4 and 2 of the bench with the base 3.

Claims (5)

1. Bank for accomodating adjacent ram units consisting of a flat, narrow frame comprising in a recess an electromagnetic actuator for the ram which is guided in two bores of the frame, characterized in that for accommodating and guiding the individual ram units (5, 6), the bank (1) has a substantially U-shaped cross-section, that the frame (6-1) of each ram unit (6) is provided, at least on one of its two ends, with a flexible pin (19) arranged between two frame sections (9-1, 9-2), that the frames are detachably mounted between the U-sections (2, 4) of the bank (1)), and that both U-sections have recesses (4-1,4-2; 2-2-1, 2-2-2) for positively and/or non-positively accommodating the front or rear frame part and the pin (19), respectively.
2. Arrangement in accordance with claim 1, characterized in that the recesses (4-1, 4-2; 2-2-1, 2-2-2) in the U-sections of the bank for accommodating a ram actuator are vertical sectional grooves.
3. Arrangement in accordance with claim 2, characterized in that the front frame part is keel- shaped (6-2) and the rear frame part has a flexible pin (19).
4. Arrangement in accordance with any one of the claims 1 to 3, characterized in that adjacent ram actuators (5, 6) are staggered relative to each other in the operating direction of the rams to reduce interaction of the electromagnetic actuators.
5. Arrangement in accordance with claim 4, characterized by their use in impact printers.
EP80105617A 1980-09-19 1980-09-19 Bank for the receipt of several print hammer units Expired EP0048290B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP80105617A EP0048290B1 (en) 1980-09-19 1980-09-19 Bank for the receipt of several print hammer units
DE8080105617T DE3067861D1 (en) 1980-09-19 1980-09-19 Bank for the receipt of several print hammer units
US06/265,749 US4388861A (en) 1980-09-19 1981-05-21 Bank for accommodating several print hammer units
JP56107151A JPS5775876A (en) 1980-09-19 1981-07-10 Bank for housing ram-unit
BR8105782A BR8105782A (en) 1980-09-19 1981-09-10 SEAT FOR ACCOMMODATION OF VARIOUS PRINT PERCUSSION UNITS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80105617A EP0048290B1 (en) 1980-09-19 1980-09-19 Bank for the receipt of several print hammer units

Publications (2)

Publication Number Publication Date
EP0048290A1 EP0048290A1 (en) 1982-03-31
EP0048290B1 true EP0048290B1 (en) 1984-05-16

Family

ID=8186801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105617A Expired EP0048290B1 (en) 1980-09-19 1980-09-19 Bank for the receipt of several print hammer units

Country Status (5)

Country Link
US (1) US4388861A (en)
EP (1) EP0048290B1 (en)
JP (1) JPS5775876A (en)
BR (1) BR8105782A (en)
DE (1) DE3067861D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8721782A0 (en) * 1987-09-02 1987-09-02 Honeywell Bull Spa AERODYNAMIC DAMPER FOR PRESS ACTUATOR.
US4867059A (en) * 1988-08-05 1989-09-19 International Business Machines Corporation Impact printer print mechanism and method of manufacture
JP4739587B2 (en) * 2001-07-10 2011-08-03 Juki株式会社 Sewing machine for buttons

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1453936A (en) * 1964-07-25 1966-07-22 Ibm Printing hammer unit for high speed printers
US3468246A (en) * 1967-01-06 1969-09-23 Int Computers & Tabulators Ltd Print hammers with electromagnetic actuating means

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349696A (en) * 1965-08-16 1967-10-31 Potter Instrument Co Inc Hammer module assembly in high speed printers
US3426675A (en) * 1967-03-17 1969-02-11 Mohawk Data Sciences Corp Print hammer module
DE1276120B (en) * 1967-05-12 1968-08-29 Siemens Ag Circuit arrangement for a call forwarding device in telecommunications systems, in particular telephone private branch exchanges
GB1201085A (en) * 1967-06-27 1970-08-05 Int Computers Ltd Hammer block assembly for line printer
US3593657A (en) * 1968-05-13 1971-07-20 Scm Corp Combined print hammer module and printed circuit board
US3636865A (en) * 1969-05-08 1972-01-25 Data Printer Corp Print head for high-speed printers
US3745497A (en) * 1971-08-11 1973-07-10 Datadyne Corp Printing mechanism actuator
US3811377A (en) * 1973-01-02 1974-05-21 Ibm Impact printer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1453936A (en) * 1964-07-25 1966-07-22 Ibm Printing hammer unit for high speed printers
US3468246A (en) * 1967-01-06 1969-09-23 Int Computers & Tabulators Ltd Print hammers with electromagnetic actuating means

Also Published As

Publication number Publication date
JPH0216222B2 (en) 1990-04-16
BR8105782A (en) 1982-05-25
JPS5775876A (en) 1982-05-12
US4388861A (en) 1983-06-21
EP0048290A1 (en) 1982-03-31
DE3067861D1 (en) 1984-06-20

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