EP1493129A1 - Tachograph comprising a cubic housing and a printing device - Google Patents

Tachograph comprising a cubic housing and a printing device

Info

Publication number
EP1493129A1
EP1493129A1 EP03724851A EP03724851A EP1493129A1 EP 1493129 A1 EP1493129 A1 EP 1493129A1 EP 03724851 A EP03724851 A EP 03724851A EP 03724851 A EP03724851 A EP 03724851A EP 1493129 A1 EP1493129 A1 EP 1493129A1
Authority
EP
European Patent Office
Prior art keywords
carrier
tachograph
assigned
locking
transport roller
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
Application number
EP03724851A
Other languages
German (de)
French (fr)
Other versions
EP1493129B1 (en
Inventor
Axel Hügle
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1493129A1 publication Critical patent/EP1493129A1/en
Application granted granted Critical
Publication of EP1493129B1 publication Critical patent/EP1493129B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C7/00Details or accessories common to the registering or indicating apparatus of groups G07C3/00 and G07C5/00
    • 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
    • B41J15/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material

Definitions

  • Tachograph with a rectangular housing and a printing device
  • the invention relates to a tachograph with a cuboid housing and a printing device, which has a thermal print head, a transport roller driven by a drive and one that can be moved out of the housing and reloads one that forms the print material supply
  • Tape carrier serving includes, and with means for locking and unlocking the carrier in its closed position in the housing of the tachograph.
  • Diagram disks are equipped as recording media, but in which the determined journey and working time data are stored in appropriately designed mass memories, require suitable printing devices for the documentation in the form of a visually readable document, which must be arranged within the tachograph, since in a cab of a commercial vehicle There is generally no scope for installing an independent printer that corresponds to the tachograph. If such a tachograph is equipped with a printing device which, in contrast to the use of plug-in, card-shaped printing media, provides a printing principle with strip-like or band-shaped printing material, it is necessary for the printing device in question to be loaded with the printing material supply and for the initial section of the printing material to be brought into the printing position becomes. The problem, however, is that tachographs are usually designed as built-in devices thus installed flush with the front wall, ie that only front access for reloading the
  • DE-U 29720521 discloses a tachograph in which a drawer-like carrier is provided for receiving the entire printing device, to which a bistable locking mechanism is assigned.
  • the carrier is unlocked by pressing the front plate of the carrier, which is used as a button, and moved into the loading position when the front plate is released.
  • the bistable indexing gear requires, apart from the effort and a function which is unsafe due to the not inconsiderable mass of the carrier in terms of shock resistance, mobility of the carrier in the locked state in the direction of the rear wall of the housing of the tachograph, which means a sealing of the front plate against the front wall of the tachograph in the locked state of the carrier considerably more difficult.
  • the thermal print head is arranged in a stationary manner in the housing of the tachograph and the transport roller mounted in the carrier has to be brought into operative connection with the thermal print head again after each use of a ribbon roll when the carrier is closed.
  • the relatively high pressure force of the thermal print head hampers the mobility of the carrier, so that the detent gear with an extremely strong ejector spring or the carrier has to be pulled out by hand after unlocking, which apart from disadvantageous handling, requires aesthetically unfavorable gripping means to be provided on the front plate of the carrier.
  • the object on which the present invention is based was therefore to provide, for a printing device of a generic type which is used in a tachograph, functionally reliable locking means which can be handled in a simple manner and which meet the requirements of series production with simple and easily mountable components.
  • the invention provides that at least one under the
  • a spring-standing locking element Effect of a spring-standing locking element is provided, that the locking element is rotatably mounted on the carrier, that a locking member of the locking element is assigned a stationary member, that an actuating arm is formed in one piece with the locking element, that on the carrier can be brought into operative connection with the actuating arm Button is slidably mounted and that a fixed stop assigned to the actuating arm is provided such that when the button is pressed, the locking element is disengaged from the locking element and by the
  • Actuating arm supported on the stop the carrier is moved in the direction of the insertion position.
  • An advantageous further development of the invention is characterized in that locking elements are provided on both sides of the carrier and that the locking elements are fastened on a shaft mounted in the carrier, that a pin is fastened to the actuating arm and that the button with an inclined plane assigned to the pin is provided that at least one locking element is assigned a switch that signals the closed position of the carrier, and that a spring-mounted thrust member that preferably interacts with the rear wall of the tachograph is arranged on the carrier.
  • a preferred embodiment of the invention sees in connection with a printing device in which the thermal print head, which is under the action of a spring, is pivotably mounted in a bearing bracket fastened to the cover plate of the housing of the tachograph and the transport roller and the drive are assigned to the carrier, in which Closed position of the carrier, the transport roller under the thermal print head resiliently resting on it
  • Supported bearing bracket supports before that the locking elements and stops associated with the locking elements are arranged or formed on the legs of the bearing bridge.
  • the preferred exemplary embodiment can further be developed in that the bearing bushes of the transport roller arranged in the frame of the drive are assigned wedge surfaces and locking lugs formed on the holding arms and that the guide of the carrier has a game corresponding to the stroke of the locking lugs.
  • the bearing bushes of the transport roller in the bearing bridge sockets are formed in such a way that in cooperation with the resilient thermal print head for the transport roller and thus for the carrier a backlash-free There is a locking connection and the locking elements are not absolutely necessary. That is to say, only the unlocking means are to be provided in order to achieve a lifting of the bearing bushes from the sockets and a displacement of the carrier in the direction of the insertion position when the key is actuated, with a pushing device provided in the rear space of the carrier after the key has been released into a gripping position shifts. If a pushing device is not provided, the unlocked carrier can be pulled out of the tachograph into the insertion position by means of gripping means suitably designed on the front plate.
  • the invention offers, apart from the fact that it satisfactorily achieves the stated object, the advantage of applicability both in a structural concept in which the entire
  • Printing device is assigned to the carrier, suitable precautions for the formation of the stops and locking members having to be taken in the housing of the tachograph in question, as well as in the preferred exemplary embodiment, which in the case of reloading a tape reel
  • the locking elements serve to precisely align the transport roller on the thermocouple bar.
  • the invention offers a special effect in that when the carrier is unlocked, the locking elements are initially pivoted by means of the button mounted in the front panel are and subsequently, by supporting the actuating arms on the stops, the support is displaced in the direction of the insertion position by force deflection, so that on the one hand when the button is released a renewed locking is excluded on the other hand, ie in the preferred exemplary embodiment a loosening of the non-positive connection between the thermal print head and the transport roller, possibly by overcoming a pressure point caused by locking lugs.
  • the button can be pressed by hand and that
  • the pushing device assigned to the carrier moves the carrier into a gripping position after unlocking the carrier and after releasing the button.
  • the compression spring assigned to the thrust device is dimensioned such that it at least overcomes the friction of the carrier in its guide and thus only an insignificant amount of force required when the carrier is closed for pivoting the locking elements and lifting the thermal printhead when the transport roller is brought into the pressurized position additional power is required. It is also worth mentioning that the closed position of the carrier is signaled by switches directly assigned to the locking elements.
  • FIG. 1 shows a perspective of a tachograph equipped with a generic printing device
  • FIG. 2 is a partial side view of the tachograph according to FIG. 1, provided with free cuts, in the insertion position of the carrier,
  • Figure 4 is a plan view of the assigned to the carrier
  • Thrust device according to the direction of arrow X in Figure 1 with the cover plate cut free.
  • the tachograph 1 shown in FIG. 1 has a built-in housing part 2 and a front panel 3 attached to the latter.
  • the built-in housing part 2 consists of a cover part 4 and a base part 5, 4 side walls 6 and 7 and a rear wall 8 being integrally formed on the cover part.
  • the latter can be brought into engagement in a bayonet-like manner when the cover part 4 and base part 5 are joined together with tabs 11 and 12 formed on the side walls 6, 7.
  • the tachograph 1 is fastened in an installation compartment or in a suitable opening, for example in a dashboard, with U-shaped components 13, the legs of which are designed as resilient claws 14 and 15. 16 with a depression in the cover plate 17 is provided for a rating plate.
  • Window section 18 is provided through which the display of a display 19 can be read.
  • 3 buttons 20, 21, 22 and 23 reach through the front panel, which serve on the one hand to register the driver and front passenger and on the other hand to release the personal data cards assigned to the respective driver and front passenger.
  • the printing device assigned to the tachograph 1 is in one
  • 35 denotes a front wall of the carrier 28 which, in conjunction with a depression in the front panel 3, which is also suitable for sealing, is designed such that it is flush with the outer contours the front panel 3 inserted.
  • a button 36 led out of the front wall 35 is used to trigger the pressure.
  • rocker switch 37 can be selected different functions and data storage and, for example, in connection with the buttons used to log in the driver to query the working time data of the driver.
  • a further button 38 guided in the front wall 35 serves to unlock the carrier 28 in the event that printing material has to be refilled.
  • 39 denotes a tear-off comb formed on the front wall 35 which serves to separate a printed document.
  • a rubber-elastic transport roller 41 which is connected to a shaft 40 and serves to advance the printing material, is mounted on the carrier 28. That is, a frame 42 is fastened to the carrier 28, in the legs 43 and 44 of which bearing bushes associated with the shaft 40, one of which is designated by 45, are held.
  • bearing bushes 45 in one piece, alignment disks 46 and 47 are used for the axial alignment of the shaft 40 when the transport roller 41 is brought into the pressurized position with the thermal print head 48 partially shown in FIGS. 2 and 3.
  • the frame 42 serves to support the drive that drives the shaft 40, i.e. of a motor and a gear required between the motor shaft and the shaft 40, to which a cover 49 formed on the front wall 35 is assigned.
  • 50 and 51 are shown on a shaft 52 mounted in the frame 42 non-rotatably arranged locking elements, the function of which is explained in more detail below.
  • a designated by 53, attached to the locking element 51 pin is assigned to the button 38.
  • the partial side view of the tachograph 1, FIG. 2, shows that the pin 53 has an inclined plane 54 formed on the key 38, which is guided and supported in a suitable manner in the front wall 35 interacts.
  • a free cut A of the cheek 31 shows a tension spring 55 assigned to the locking elements 50, 51, which is hooked on the one hand to a hook 56 fixed to the frame and on the other hand to an angled lever 57 of the locking element 51.
  • 58 denotes a latch provided on the latch elements 50, 51 and provided with a latch hook 59.
  • 60 represents an actuating arm likewise formed on both locking elements 50, 51, on which a sliding surface 61 is formed.
  • a free cut B of the side wall 6, front panel 3 and component 13 and a further free cut C of the cheek 31 of the carrier 28 enable a view of a leg 62 of a bearing bridge 63 fastened to the cover plate 17.
  • the mounting of the bearing bridge 63 serves to press pins pressed into the cover plate 17 64, 65, 66 and 67 and pressed onto the latter
  • the bearing bridge 63 serves on the one hand to mount the thermal print head 48, the pivot axis of which is designated 70, and on the other hand to hold the transport roller 41 when it is in the printing position.
  • the print head carrier 71 Under the action of a spring (not shown), bears against a stop, also not shown, which is formed on the bearing bridge 63.
  • a stop also not shown, which is formed on the bearing bridge 63.
  • the printhead carrier 71 is raised against the cover plate 17 and the thermocouple strip 72 fastened to the printhead carrier 71 is in operative connection with the transport roller 41 or with the tape winding located between the transport roller 41 and the thermocouple strip 72 29 running pressure carrier 73.
  • the Bolt elements 50, 51 associated switches 74, bolts 75 and tabs 76 are attached or formed in pairs.
  • associated with the legs 62 of the transport roller 41 associated with wedge surfaces 77 and locking lugs 78 holding arms 79 are formed.
  • fingers provided with a ramp can also be formed directly out of the legs 62, which results in a higher shock resistance with less effort.
  • FIG 3 also shows that in the closed position of the carrier 28 there is a distance a between the sliding surfaces 61 of the actuating arms 60 and the tabs 76 serving as stops.
  • a threaded pin attached to the rear wall 8 referred to, which serves to align the tachograph 1 during its installation.
  • Thrust device 80 arranged in a frame 83 of the braced and braced support 28 for stiffening. That is, catch arms 87 and 88 are formed directly on a plunger 84 serving as a thrust member with a plunger head 85 and a shaft 86 supporting the compression spring 81. The catch arms 87, 88 are guided in the frame 83 and, in conjunction with a wall of the frame 83, through which they are guided, through which they are guided, serve to limit the stroke of the plunger 84.
  • the assembly of the pushing device 80 which is carried out by the plunger head 85 underneath supports the action of the compression spring 81 on the rear wall 8 of the tachograph 1, after unlocking causes the carrier 28 to be moved into a gripping position, is done in a simple manner in that after the compression spring 81 has been plugged onto the shaft 86, the pushing device 80 into the Frame 83 is inserted and held on the carrier 28 by means of the catch arms 87, 88.
  • Pawl elements formed on the carrier 28 serve to secure the catch arms 87, 88 when they come into the holding position when the carrier 28 is moved.
  • the carrier 28 is first unlocked by pressing the key 38.
  • the pushing device 80 moves the carrier into a gripping position.
  • the carrier 28 - the front plate 35 serves as a grip element - in the Pull the insertion position, which is determined by a suitable stop, not shown, out of the device.
  • the carrier 28 can be pushed back into the device by pressing the front plate 35, the free end of the print carrier 73 being pulled off the tape roll 29 to such an extent that it is before the locking elements 50, 51 and at least the transport roller 41 overlaps the printing position of the transport roller 41.
  • the thrust device 80 acts on its total stroke Figure 4 is designated b, such that the bottom, not shown, of a chamber formed on the front wall 35 and serving to guide the key 38, through which a shaft 91 of the key 38 passes, strikes the key 38 which is still held and when the key is released Key 38 of the carrier 28 into the gripping position, in which the catch arms 87, 88 rest against the frame 83, is displaced.
  • the key 38 can also be unambiguously designed, that is to say it can be provided with a flat-profiled shaft 91 on which the inclined plane 54 is formed on the end face.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Recording Measured Values (AREA)
  • Pens And Brushes (AREA)
  • Cable Accessories (AREA)

Abstract

The invention relates to a tachograph (1) comprising a cubic housing and a printing device provided with a displaceably mounted carrier (28) for receiving a rolled strip (29) forming the printing material supply. According to the invention, the latch which is active in the closing position of the carrier (28) is disengaged by actuating a key (38) and the carrier (28) is displaced in the direction of the insertion position, as a result of force deflection at fixed abutments, by means of unlatching elements (50,51) which are interconnected by a shaft.

Description

Beschreibungdescription
Fahrtschreiber mit einem quaderförmigen Gehäuse und einer DruckvorrichtungTachograph with a rectangular housing and a printing device
Die Erfindung betrifft einen Fahrtschreiber mit einem quaderförmigen Gehäuse und einer Druckvorrichtung, welche einen Thermodruckkopf, eine von einem Laufwerk angetriebene Transportwalze und einen aus dem Gehäuse herausbewegbaren, dem Nachladen eines den Druckmaterialvorrat bildendenThe invention relates to a tachograph with a cuboid housing and a printing device, which has a thermal print head, a transport roller driven by a drive and one that can be moved out of the housing and reloads one that forms the print material supply
Bandwickels dienenden Träger umfasst, sowie mit Mitteln zum Verriegeln und Entriegeln des Trägers in dessen Schließstellung im Gehäuse des Fahrtschreibers.Tape carrier serving includes, and with means for locking and unlocking the carrier in its closed position in the housing of the tachograph.
FahrtSchreiber, welche nicht für die Verwendung vonTrip recorders, which are not for the use of
Diagrammscheiben als Aufzeichnungsträger ausgerüstet sind, sondern bei welchen die ermittelten Fahrt- und Arbeitszeitdaten in entsprechend ausgebildeten Massenspeichern abgelegt werden, machen für die Dokumentation in Form eines visuell lesbaren Beleges geeignete Druckvorrichtungen erforderlich, die innerhalb der Fahrtschreiber angeordnet werden müssen, da in einem Fahrerhaus eines Nutzfahrzeuges Freiraum für den Einbau eines selbständigen, mit dem Fahrtschreiber korrespondierenden Druckers im Allgemeinen nicht gegeben ist. Wird ein solcher Fahrtschreiber mit einer Druckvorrichtung ausgerüstet, die im Gegensatz zur Verwendung von vorsteckbaren, kartenförmigen Druckträgern ein Druckprinzip mit streifen- bzw. bandförmigem Druckmaterial vorsieht, ist es erforderlich, dass die betreffende Druckvorrichtung mit dem Druckmaterialvorrat geladen und der Anfangsabschnitt des Druckmaterials in Druckposition gebracht wird. Problematisch ist jedoch, dass Fahrtschreiber in der Regel als Einbaugeräte konzipiert und somit frontwandbündig eingebaut sind, d.h. , dass lediglich ein frontseitiger Zugang zum Nachladen desDiagram disks are equipped as recording media, but in which the determined journey and working time data are stored in appropriately designed mass memories, require suitable printing devices for the documentation in the form of a visually readable document, which must be arranged within the tachograph, since in a cab of a commercial vehicle There is generally no scope for installing an independent printer that corresponds to the tachograph. If such a tachograph is equipped with a printing device which, in contrast to the use of plug-in, card-shaped printing media, provides a printing principle with strip-like or band-shaped printing material, it is necessary for the printing device in question to be loaded with the printing material supply and for the initial section of the printing material to be brought into the printing position becomes. The problem, however, is that tachographs are usually designed as built-in devices thus installed flush with the front wall, ie that only front access for reloading the
Druckmaterialvorrats unter Verwendung eines schubladenartig verschiebbaren oder frontseitig aufschwenk- /aufklappbaren Trägers möglich ist. Dabei kommt im Einsatzmilieu einesMedia supply is possible using a drawer that can be moved like a drawer or that can be swung open / opened from the front. There is one in the operational environment
11.11th
Fahrtschreibers, wo erhebliche Schwingungs- und Schockbelastungen auftreten, den dem Träger zugeordneten Ver- und Entriegelungsmitteln eine entscheidende Bedeutung zu.Tachograph, where significant vibration and shock loads occur, the locking and unlocking means assigned to the wearer of crucial importance.
Mit der DE-U 29720521 ist ein Fahrtschreiber bekannt geworden, bei dem für die Aufnahme der gesamten Druckvorrichtung ein schubladenartiger Träger vorgesehen ist, welchem ein bistabiles Rastgetriebe zugeordnet ist. Im Falle, dass Druckmaterial nachgefüllt werden muss, wird durch Betätigen der als Taste dienenden Frontplatte des Trägers der Träger entriegelt und beim Loslassen der Frontplatte in die Einlegeposition verschoben. Das bistabile Rastgetriebe setzt eine, abgesehen vom Aufwand und einer bedingt durch die nicht unerhebliche Masse des Trägers unsicheren Funktion hinsichtlich Schocksicherheit, Bewegbarkeit des Trägers im verriegeltem Zustand in Richtung der Rückwand des Gehäuses des Fahrtschreibers voraus, was eine Abdichtung der Frontplatte gegenüber der Frontwand des Fahrtschreibers im verriegelten Zustand des Trägers erheblich erschwert. Gleiches gilt auch für die in der DE-U 29920901 beschriebene Druckvorrichtung, bei der der Thermodruckkopf ortsfest im Gehäuse des Fahrtschreibers angeordnet ist und die im Träger gelagerte Transportwalze nach jedem Einsetzten eines Bandwickels beim Schließen des Trägers wieder in Wirkverbindung mit dem Thermodruckkopf gebracht werden muss . Bei diesem Konzept einer Druckvorrichtung behindert die relativ hohe Andruckkraft des Thermodruckkopfes die Bewegungsfähigkeit des Trägers, so dass das Rastgetriebe mit einer extrem starken Auswerffeder ausgerüstet werden oder der Träger nach dem Entriegeln von Hand herausgezogen werden muss, was von einer unvorteilhaften Handhabung abgesehen, an der Frontplatte des Trägers vorzusehende, ästhetisch ungünstige Greifmittel erforderlich macht.DE-U 29720521 discloses a tachograph in which a drawer-like carrier is provided for receiving the entire printing device, to which a bistable locking mechanism is assigned. In the event that print material has to be refilled, the carrier is unlocked by pressing the front plate of the carrier, which is used as a button, and moved into the loading position when the front plate is released. The bistable indexing gear requires, apart from the effort and a function which is unsafe due to the not inconsiderable mass of the carrier in terms of shock resistance, mobility of the carrier in the locked state in the direction of the rear wall of the housing of the tachograph, which means a sealing of the front plate against the front wall of the tachograph in the locked state of the carrier considerably more difficult. The same also applies to the printing device described in DE-U 29920901, in which the thermal print head is arranged in a stationary manner in the housing of the tachograph and the transport roller mounted in the carrier has to be brought into operative connection with the thermal print head again after each use of a ribbon roll when the carrier is closed. In this concept of a printing device, the relatively high pressure force of the thermal print head hampers the mobility of the carrier, so that the detent gear with an extremely strong ejector spring or the carrier has to be pulled out by hand after unlocking, which apart from disadvantageous handling, requires aesthetically unfavorable gripping means to be provided on the front plate of the carrier.
Die der vorliegenden Erfindung zugrunde liegende Aufgabe bestand somit darin, für eine in einem FahrtSchreiber verwendete Druckvorrichtung gattungsgemäßer Art funktionssichere und bezüglich der Entriegelung auf einfache Weise handhabbare Verriegelungsmittel zu schaffen, welche mit einfachen und auf einfache Weise montierbaren Bauteilen den Anforderungen der Serienfertigung gerecht werden.The object on which the present invention is based was therefore to provide, for a printing device of a generic type which is used in a tachograph, functionally reliable locking means which can be handled in a simple manner and which meet the requirements of series production with simple and easily mountable components.
Die Erfindung sieht vor, dass wenigstens ein unter derThe invention provides that at least one under the
Wirkung einer Feder stehendes Riegelelement vorgesehen ist, dass das Riegelelement drehbar auf dem Träger gelagert ist, dass einem Rasthaken des Riegelelementes ein Rastglied ortsfest zugeordnet ist, dass einteilig mit dem Riegelelement ein Betätigungsarm ausgebildet ist, dass auf dem Träger eine mit dem Betätigungsarm in Wirkverbindung bringbare Taste verschiebbar gelagert ist und dass ein dem Betätigungsarm zugeordneter, ortsfester Anschlag vorgesehen ist derart, dass beim Betätigen der Taste ein Außereingriffbringen des Riegelelementes mit dem Rastglied und, indem sich derEffect of a spring-standing locking element is provided, that the locking element is rotatably mounted on the carrier, that a locking member of the locking element is assigned a stationary member, that an actuating arm is formed in one piece with the locking element, that on the carrier can be brought into operative connection with the actuating arm Button is slidably mounted and that a fixed stop assigned to the actuating arm is provided such that when the button is pressed, the locking element is disengaged from the locking element and by the
Betätigungsarm an dem Anschlag abstützt, ein Verschieben des Trägers in Richtung Einlegeposition erfolgt.Actuating arm supported on the stop, the carrier is moved in the direction of the insertion position.
Eine vorteilhafte Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass beiderseits des Trägers Riegelelemente vorgesehen sind und dass die Riegelelemente auf einer in dem Träger gelagerten Welle befestigt sind, dass an dem Betätigungsarm ein Stift befestigt ist und dass die Taste mit einer dem Stift zugeordneten schiefen Ebene versehen ist, dass wenigstens einem Riegelelement ein die Schließstellung des Trägers meldender Schalter zugeordnet ist und dass auf dem Träger ein vorzugsweise mit der Rückwand des Fahrtschreibers zusammenwirkendes, gefedert gelagertes Schubglied angeordnet ist.An advantageous further development of the invention is characterized in that locking elements are provided on both sides of the carrier and that the locking elements are fastened on a shaft mounted in the carrier, that a pin is fastened to the actuating arm and that the button with an inclined plane assigned to the pin is provided that at least one locking element is assigned a switch that signals the closed position of the carrier, and that a spring-mounted thrust member that preferably interacts with the rear wall of the tachograph is arranged on the carrier.
Ein bevorzugtes Ausführungsbeispiel der Erfindung sieht in Verbindung mit einer Druckvorrichtung, bei der der unter der Wirkung einer Feder stehenden Thermodruckkopf in einer an der Deckelplatte des Gehäuses des Fahrtschreibers befestigten Lagerbrücke schwenkbar gelagert ist und die Transportwalze und das Laufwerk dem Träger zugeordnet sind, wobei in der Schließstellung des Trägers die Transportwalze sich unter dem federnd auf ihr aufliegenden Thermodruckkopf an derA preferred embodiment of the invention sees in connection with a printing device in which the thermal print head, which is under the action of a spring, is pivotably mounted in a bearing bracket fastened to the cover plate of the housing of the tachograph and the transport roller and the drive are assigned to the carrier, in which Closed position of the carrier, the transport roller under the thermal print head resiliently resting on it
Lagerbrücke ausgebildeten Haltearmen abstützt, vor, dass die den Riegelelementen zugeordneten Rastglieder und Anschläge an den Schenkeln der Lagerbrücke angeordnet bzw. ausgebildet sind.Supported bearing bracket supports, before that the locking elements and stops associated with the locking elements are arranged or formed on the legs of the bearing bridge.
Das bevorzugte Ausführungsbeispiel kann ferner dadurch weitergebildet sein, dass den im Gestell des Laufwerkes angeordneten Lagerbuchsen der Transportwalze an den Haltearmen ausgebildete Keilflächen und Rastnasen zugeordnet sind und dass die Führung des Trägers ein dem Hub der Rastnasen entsprechendes Spiel aufweist.The preferred exemplary embodiment can further be developed in that the bearing bushes of the transport roller arranged in the frame of the drive are assigned wedge surfaces and locking lugs formed on the holding arms and that the guide of the carrier has a game corresponding to the stroke of the locking lugs.
Denkbar ist außerdem, dass bei einer Druckvorrichtung gemäß dem bevorzugten Ausführungsbeispiel für die Lagerbuchsen der Transportwalze in der Lagerbrücke Fassungen ausgebildet werden derart, dass im Zusammenwirken mit dem federnd auf der Transportwalze aufliegenden Thermodruckkopf für die Transportwalze und somit für den Träger eine spielfreie RastVerbindung gegeben ist und die Riegelelemente nicht zwingend erforderlich sind. D.h., es sind lediglich die Entriegelungsmittel vorzusehen, um beim Betätigen der Taste ein Herausheben der Lagerbuchsen aus den Fassungen und ein Verschieben des Trägers in Richtung Einlegeposition zu erzielen, wobei eine im Rückraum des Trägers vorgesehene Schubeinrichtung den Träger nach dem Loslassen der Taste in eine Greifposition verschiebt. Ist eine Schubeinrichtung nicht vorgesehen, so kann der entriegelte Träger mittels in geeigneter Weise an der Frontplatte ausgebildeter Greifmittel in die Einlegeposition aus dem Fahrtschreiber herausgezogen werden .It is also conceivable that in a printing device according to the preferred embodiment for the bearing bushes of the transport roller in the bearing bridge sockets are formed in such a way that in cooperation with the resilient thermal print head for the transport roller and thus for the carrier a backlash-free There is a locking connection and the locking elements are not absolutely necessary. That is to say, only the unlocking means are to be provided in order to achieve a lifting of the bearing bushes from the sockets and a displacement of the carrier in the direction of the insertion position when the key is actuated, with a pushing device provided in the rear space of the carrier after the key has been released into a gripping position shifts. If a pushing device is not provided, the unlocked carrier can be pulled out of the tachograph into the insertion position by means of gripping means suitably designed on the front plate.
Weitere vorteilhafte Ausgestaltungen der Erfindung gehen aus der Beschreibung der beigefügten Zeichnungen und aus den vorstehend nicht zitierten Ansprüchen hervor.Further advantageous embodiments of the invention emerge from the description of the attached drawings and from the claims not cited above.
Die Erfindung bietet, abgesehen davon, dass sie die gestellte Aufgabe zufriedenstellend löst, den Vorteil der Anwendbarkeit sowohl bei einem baulichen Konzept, bei dem die gesamteThe invention offers, apart from the fact that it satisfactorily achieves the stated object, the advantage of applicability both in a structural concept in which the entire
Druckvorrichtung dem Träger zugeordnet ist, wobei im Gehäuse des betreffenden Fahrtschreibers geeignete Vorkehrungen zum Ausbilden der Anschläge und Rastglieder getroffen werden müssen als auch bei dem bevorzugten Ausführungsbeispiel , welches im Falle des Nachladens eines Bandwickels einePrinting device is assigned to the carrier, suitable precautions for the formation of the stops and locking members having to be taken in the housing of the tachograph in question, as well as in the preferred exemplary embodiment, which in the case of reloading a tape reel
Trennung von Thermodruckkopf und Transportwalze vorsieht. Ferner dienen bei dem bevorzugten Ausführungsbeispiel die Riegelelemente dem exakten Ausrichten der Transportwalze auf die Thermoelementeleiste.Separation of thermal print head and transport roller provides. Furthermore, in the preferred exemplary embodiment, the locking elements serve to precisely align the transport roller on the thermocouple bar.
Einen besonderen Effekt bietet die Erfindung dadurch, dass beim Entriegeln des Trägers mittels der in der Frontplatte gelagerten Taste zunächst die Riegelelemente verschwenkt werden und nachfolgend, indem sich die Betätigungsarme an den Anschlägen abstützen, durch Kraftumlenkung ein Verschieben des Trägers in Richtung Einlegeposition erfolgt, so dass einerseits beim Loslassen der Taste ein erneutes Verriegeln ausgeschlossen ist andererseits, d.h. bei dem bevorzugten Ausführungsbeispiel, ein Lösen der kraftschlüssigen Verbindung zwischen dem Thermodruckkopf und der Transportwalze, gegebenenfalls unter Überwindung eines durch Rastnasen verursachten Druckpunktes, erfolgt. Dabei ermöglicht die Betätigung der Taste von Hand und dasThe invention offers a special effect in that when the carrier is unlocked, the locking elements are initially pivoted by means of the button mounted in the front panel are and subsequently, by supporting the actuating arms on the stops, the support is displaced in the direction of the insertion position by force deflection, so that on the one hand when the button is released a renewed locking is excluded on the other hand, ie in the preferred exemplary embodiment a loosening of the non-positive connection between the thermal print head and the transport roller, possibly by overcoming a pressure point caused by locking lugs. The button can be pressed by hand and that
Verschwenken der Riegelelemente über eine schiefe Ebene eine an den Riegelelementen angreifende, relativ starke Zugfeder und somit eine ausreichend hohe Schocksicherheit .Swiveling the locking elements over an inclined plane engaging the locking elements, relatively strong tension spring and thus a sufficiently high security against shock.
Vorteilhaft ist ferner, dass mit der dem Träger zugeordneten Schubeinrichtung nach dem Entriegeln des Trägers und nach dem Freigeben der Taste ein Verschieben des Trägers in eine Greifposition erfolgt. Dabei ist die der Schubeinrichtung zugeordnete Druckfeder derart dimensioniert, dass mit ihr wenigstens die Reibung des Trägers in dessen Führung überwunden wird und somit zu dem beim Schließen des Trägers für das Verschwenken der Riegelelemente und das Anheben des Thermodruckkopfes beim Indruckpositionbringen der Transportwalze notwendigen Kraftaufwand ein nur unwesentlicher zusätzlicher Kraftbedarf erforderlich ist. Erwähnenswert ist außerdem, dass die Schließstellung des Trägers durch unmittelbar den Riegelelementen zugeordnete Schalter signalisiert wird.It is also advantageous that the pushing device assigned to the carrier moves the carrier into a gripping position after unlocking the carrier and after releasing the button. The compression spring assigned to the thrust device is dimensioned such that it at least overcomes the friction of the carrier in its guide and thus only an insignificant amount of force required when the carrier is closed for pivoting the locking elements and lifting the thermal printhead when the transport roller is brought into the pressurized position additional power is required. It is also worth mentioning that the closed position of the carrier is signaled by switches directly assigned to the locking elements.
Im folgenden sei die Erfindung anhand von Zeichnungen näher erläutert. Es zeigen: Figur 1, eine Perspektive eines mit einer gattungsgemäßen Druckvorrichtung ausgerüsteten Fahrtschreibers,The invention is explained in more detail below with reference to drawings. Show it: FIG. 1 shows a perspective of a tachograph equipped with a generic printing device,
Figur 2, eine mit Freischnitten versehene teilweise Seitenansicht des Fahrtschreibers gemäß Figur 1 in der Einlegeposition des Trägers,FIG. 2 is a partial side view of the tachograph according to FIG. 1, provided with free cuts, in the insertion position of the carrier,
Figur 3, eine mit Freischnitten versehene verkürzteFigure 3, a shortened provided with free cuts
Seitenansicht des Fahrtschreibers gemäß Figur 1 in der Schließstellung des Trägers,Side view of the tachograph according to Figure 1 in the closed position of the carrier,
Figur 4, eine Draufsicht auf die dem Träger zugeordneteFigure 4 is a plan view of the assigned to the carrier
Schubeinrichtung gemäß der Pfeilrichtung X in Figur 1 bei freigeschnittener Deckelplatte.Thrust device according to the direction of arrow X in Figure 1 with the cover plate cut free.
Der mit der Figur 1 dargestellte Fahrtschreiber 1 weißt ein Einbaugehäuseteil 2 und eine an letzterem befestigte Frontblende 3 auf. Das Einbaugehäuseteil 2 besteht aus einem Deckelteil 4 und einem Bodenteil 5, wobei an dem Deckelteil 4 Seitenwände 6 und 7 sowie eine Rückwand 8 angeformt sind. An dem Bodenteil 5 sind die Seitenwände 6, 7 und die Rückwand 8 überlappende Schenkel angeformt, an denen Riegel, von denen zwei 9 und 10 in Figur 1 sichtbar sind, ausgebildet sind. Letztere sind beim Zusammenfügen vom Deckelteil 4 und Bodenteil 5 mit an den Seitenwänden 6, 7 ausgebildeten Lappen 11 und 12 bajonettartig in Eingriff bringbar. An beiden Seitenwänden 6, 7 sind der Befestigung des Fahrtschreibers 1 in einem Einbaufach bzw. in einer geeigneten Öffnung, beispielweise in einem Armaturenbrett, u-förmige Bauteile 13, deren Schenkel als federnde Krallen 14 und 15 ausgebildet sind befestigt. Mit 16 ist eine für ein Typenschild vorgesehene Vertiefung in der Deckelplatte 17 bezeichnet. In der Frontblende 3 ist in an sich bekannter Weise ein Fensterausschnitt 18 vorgesehen, durch welchen die Anzeige eines Displays 19 lesbar ist. Ferner greifen durch die Frontblende 3 Tasten 20, 21, 22 und 23 hindurch, die einerseits dem Anmelden von Fahrer und Beifahrer anderseits dem Freigeben der jeweiligen Fahrer und Beifahrer zugeordneten persönlichen Datenkarten dienen. Dem Einführen der Datenkarten in die im Einbaugehäuseteil 2 befindlichen Lese-/Schreibaggregate dienen in einem wulstformigen Vorsprung 24 ausgebildete, trichterförmig angesenkte Führungsschlitze 25 und 26. Freisparungen des wulstformigen Vorsprungs 24, von denen eine mit 27 bezeichnet ist, dienen dem Zugriff beim Entnehmen der Datenkarten.The tachograph 1 shown in FIG. 1 has a built-in housing part 2 and a front panel 3 attached to the latter. The built-in housing part 2 consists of a cover part 4 and a base part 5, 4 side walls 6 and 7 and a rear wall 8 being integrally formed on the cover part. On the base part 5, the side walls 6, 7 and the rear wall 8 overlapping legs are formed, on which bars, two of which 9 and 10 are visible in FIG. 1, are formed. The latter can be brought into engagement in a bayonet-like manner when the cover part 4 and base part 5 are joined together with tabs 11 and 12 formed on the side walls 6, 7. On both side walls 6, 7, the tachograph 1 is fastened in an installation compartment or in a suitable opening, for example in a dashboard, with U-shaped components 13, the legs of which are designed as resilient claws 14 and 15. 16 with a depression in the cover plate 17 is provided for a rating plate. In the front panel 3 is a in a conventional manner Window section 18 is provided through which the display of a display 19 can be read. Furthermore, 3 buttons 20, 21, 22 and 23 reach through the front panel, which serve on the one hand to register the driver and front passenger and on the other hand to release the personal data cards assigned to the respective driver and front passenger. The insertion of the data cards into the read / write units located in the built-in housing part 2 serve as funnel-shaped countersunk guide slots 25 and 26 formed in a bead-shaped projection 24. Recesses in the bead-shaped projection 24, one of which is designated by 27, serve for access when the data cards are removed ,
Wie aus der Figur 1 hervorgeht befindet sich die dem FahrtSchreiber 1 zugeordnete Druckvorrichtung in einemAs can be seen from FIG. 1, the printing device assigned to the tachograph 1 is in one
Zustand, in welchem ein Träger 28 sich in der durch einen nicht sichtbaren Anschlag begrenzten Einlegeposition bezüglich des von Zeit zu Zeit nachzuladenden, den Druckmaterialvorrat bildenden Bandwickels 29 befindet. Letzterer ist in einer in dem schubladenartig in demState in which a carrier 28 is in the insertion position, which is delimited by an invisible stop, with respect to the tape wrap 29 to be reloaded from time to time, which forms the printing material supply. The latter is in a drawer-like in the
Fahrtschreiber 1 verschiebbaren Träger 28 in geeigneter Weise ausgebildeten Wanne 30 aufgenommen. An dem Träger 28 angeformte Wangen 31 und 32 dienen der Führung des Trägers 28 in einerseits an der Seitenwand 6 andererseits an einem im Einbaugehäuseteil 2 vorgesehenen, stabilisierendenTachograph 1 slidable carrier 28 in a suitably designed tub 30 added. Cheeks 31 and 32 integrally formed on the carrier 28 serve to guide the carrier 28 on the one hand on the side wall 6 and on the other hand on a stabilizing element provided in the built-in housing part 2
Strukturteil ausgebildeten bzw. angebrachten Führungsschienen 33 und 34. Mit 35 ist eine Frontwand des Trägers 28 bezeichnet, die in Verbindung mit einer auch für ein Abdichten geeigneten, nicht näher bezeichneten Senkung in der Frontblende 3 derart gestaltet ist, dass sie sich flächenbündig in die Außenkonturen der Frontblende 3 eingefügt. Eine aus der Frontwand 35 herausgeführte Taste 36 dient der Druckauslösung. Mittels eines ebenfalls auf dem Träger 28 angeordneten Wippenschalters 37 lassen sich verschiedenen Funktionen und Datenspeicher anwählen und beispielweise in Verbindung mit den dem Anmelden der Fahrer dienenden Tasten die Arbeitszeitdaten der Fahrer abfragen. Eine weitere in der Frontwand 35 geführte Taste 38 dient im Falle, dass Druckmaterial nachgefüllt werden muss, der Entriegelung des Trägers 28. Mit 39 ist ein an der Frontwand 35 ausgebildeter, dem Abtrennen eines bedruckten Beleges dienender Abreißkamm bezeichnet . Wie die Figur 1 ferner zeigt, ist auf dem Träger 28 eine mit einer Welle 40 verbundene, dem Vorschub des Druckmaterials dienende, gummielastische Transportwalze 41 gelagert. D.h., es ist auf dem Träger 28 ein Gestell 42 befestigt, in dessen Schenkeln 43 und 44 der Welle 40 zugeordnete Lagerbuchsen, von denen eine mit 45 bezeichnet ist, gehaltert sind. An denStructural part formed or attached guide rails 33 and 34. 35 denotes a front wall of the carrier 28 which, in conjunction with a depression in the front panel 3, which is also suitable for sealing, is designed such that it is flush with the outer contours the front panel 3 inserted. A button 36 led out of the front wall 35 is used to trigger the pressure. By means of also on the Carrier 28 arranged rocker switch 37 can be selected different functions and data storage and, for example, in connection with the buttons used to log in the driver to query the working time data of the driver. A further button 38 guided in the front wall 35 serves to unlock the carrier 28 in the event that printing material has to be refilled. 39 denotes a tear-off comb formed on the front wall 35 which serves to separate a printed document. As FIG. 1 also shows, a rubber-elastic transport roller 41, which is connected to a shaft 40 and serves to advance the printing material, is mounted on the carrier 28. That is, a frame 42 is fastened to the carrier 28, in the legs 43 and 44 of which bearing bushes associated with the shaft 40, one of which is designated by 45, are held. To the
Lagerbuchsen 45 einteilig ausgebildete Richtscheiben 46 und 47 dienen dem axialen Ausrichten der Welle 40 beim Indruckpositionbringen der Transportwalze 41 mit dem in den Figuren 2 und 3 teilweise dargestellten Thermodruckkopf 48. Ferner dient das Gestell 42 der Lagerung des die Welle 40 antreibenden Laufwerkes, d.h. eines Motors und eines zwischen dessen Motorwelle und der Welle 40 erforderlichen Getriebes, welchem eine an der Frontwand 35 angeformte Abdeckung 49 zugeordnet ist. Mit 50 und 51 sind auf einer im Gestell 42 gelagerten Welle 52 verdrehfest angeordnete Riegelelemente bezeichnet, deren Funktion im folgenden näher erläutert wird. Ein mit 53 bezeichneter, an dem Riegelelement 51 befestigter Stift ist der Taste 38 zugeordnet.Bearing bushes 45 in one piece, alignment disks 46 and 47 are used for the axial alignment of the shaft 40 when the transport roller 41 is brought into the pressurized position with the thermal print head 48 partially shown in FIGS. 2 and 3. Furthermore, the frame 42 serves to support the drive that drives the shaft 40, i.e. of a motor and a gear required between the motor shaft and the shaft 40, to which a cover 49 formed on the front wall 35 is assigned. With 50 and 51 are shown on a shaft 52 mounted in the frame 42 non-rotatably arranged locking elements, the function of which is explained in more detail below. A designated by 53, attached to the locking element 51 pin is assigned to the button 38.
Der teilweisen Seitenansicht des Fahrtschreibers 1, Figur 2, lässt sich entnehmen, dass der Stift 53 mit einer an der Taste 38, die in geeigneter Weise in der Frontwand 35 geführt und abgestützt ist, ausgebildeten schiefen Ebene 54 zusammenwirkt. Außerdem zeigt ein Freischnitt A der Wange 31 eine den Riegelelementen 50, 51 zugeordnete Zugfeder 55, die einerseits an einem gestellfesten Haken 56 anderseits an einem abgewinkelten Hebel 57 des Riegelelementes 51 eingehängt ist. Mit 58 ist ein jeweils an den Riegelelementen 50, 51 ausgebildeter mit einem Rasthaken 59 versehener Riegel bezeichnet. 60 stellt einen ebenfalls an beiden Riegelelementen 50, 51 angeformten Betätigungsarm dar, an welchem eine Gleitfläche 61 ausgebildet ist. Ein Freischnitt B von Seitenwand 6, Frontblende 3 und Bauteil 13 sowie ein weiterer Freischnitt C der Wange 31 des Trägers 28 ermöglichen eine Ansicht eines Schenkels 62 einer an der Deckelplatte 17 befestigten Lagerbrücke 63. Der Befestigung der Lagerbrücke 63 dienen in die Deckelplatte 17 eingepresste Zapfen 64, 65, 66 und 67 und auf letztere aufgepressteThe partial side view of the tachograph 1, FIG. 2, shows that the pin 53 has an inclined plane 54 formed on the key 38, which is guided and supported in a suitable manner in the front wall 35 interacts. In addition, a free cut A of the cheek 31 shows a tension spring 55 assigned to the locking elements 50, 51, which is hooked on the one hand to a hook 56 fixed to the frame and on the other hand to an angled lever 57 of the locking element 51. 58 denotes a latch provided on the latch elements 50, 51 and provided with a latch hook 59. 60 represents an actuating arm likewise formed on both locking elements 50, 51, on which a sliding surface 61 is formed. A free cut B of the side wall 6, front panel 3 and component 13 and a further free cut C of the cheek 31 of the carrier 28 enable a view of a leg 62 of a bearing bridge 63 fastened to the cover plate 17. The mounting of the bearing bridge 63 serves to press pins pressed into the cover plate 17 64, 65, 66 and 67 and pressed onto the latter
Scheiben, von denen in Figur 2 zwei dargestellt und mit 68 und 69 bezeichnet sind. Die Lagerbrücke 63 dient einerseits der Lagerung des Thermodruckkopfes 48, dessen Schwenkachse mit 70 bezeichnet ist, anderseits der Halterung der Transportwalze 41, wenn diese sich in der Druckposition befindet. In der, in der Figur 2 dargestellten Einlegeposition des Trägers 28 liegt der Druckkopfträger 71, unter der Wirkung einer nicht dargestelltren Feder an einem an der Lagerbrücke 63 ausgebildeten, ebenfalls nicht dargestellten Anschlag an. In der Druckposition des Trägers 28 gemäß Figur 3 ist der Druckkopfträger 71 gegen die Deckelplatte 17 angehoben und die am Druckkopfträger 71 befestigte Thermoelementeleiste 72 steht in Wirkverbindung mit der Transportwalze 41 bzw. mit dem sich zwischen der Transportwalze 41 und der Thermoelementleiste 72 befindlichen, vom Bandwickel 29 ablaufenden Druckträger 73. Ferner lässt sich der Figur 2 entnehmen, dass an den gleichgestalteten Schenkeln 62 der Lagerbrücke 63 den Riegelelementen 50 ,51 zugeordnete Schalter 74, Bolzen 75 und Lappen 76 paarweise angebracht bzw. ausgebildet sind. Außerdem sind an den Schenkeln 62 der Transportwalze 41 zugeordnete, mit Keilflächen 77 und Rastnasen 78 versehene Haltearme 79 angeformt. Anstatt der zylinderischen Bolzen 75 können auch mit einer Rampe versehene Finger unmittelbar aus den Schenkeln 62 herausgeformt werden, was bei geringerem Aufwand eine höhere Schocksicherheit ergibt .Disks, two of which are shown in FIG. 2 and designated 68 and 69. The bearing bridge 63 serves on the one hand to mount the thermal print head 48, the pivot axis of which is designated 70, and on the other hand to hold the transport roller 41 when it is in the printing position. In the insertion position of the carrier 28 shown in FIG. 2, the print head carrier 71, under the action of a spring (not shown), bears against a stop, also not shown, which is formed on the bearing bridge 63. In the printing position of the carrier 28 according to FIG. 3, the printhead carrier 71 is raised against the cover plate 17 and the thermocouple strip 72 fastened to the printhead carrier 71 is in operative connection with the transport roller 41 or with the tape winding located between the transport roller 41 and the thermocouple strip 72 29 running pressure carrier 73. Furthermore, it can be seen from FIG. 2 that on the legs 62 of the same design of the bearing bridge 63 the Bolt elements 50, 51 associated switches 74, bolts 75 and tabs 76 are attached or formed in pairs. In addition, associated with the legs 62 of the transport roller 41 associated with wedge surfaces 77 and locking lugs 78 holding arms 79 are formed. Instead of the cylindrical bolts 75, fingers provided with a ramp can also be formed directly out of the legs 62, which results in a higher shock resistance with less effort.
Die verkürzte Seitenansicht, Figur 3, zeigt in derThe shortened side view, Figure 3, shows in the
Schließstellung des Trägers 28, in der die Transportwalze 41 bzw. die Lagerbuchsen 45 der Welle 40 der Transportwalze 41 auf den Haltearmen 79 der Lagerbrücke 63 aufgenommen sind, wobei die Haltearme 79 zwischen die Schenkel 43, 44 des Gestells 42 und die an den Lagerbuchsen 45 ausgebildetenClosed position of the carrier 28, in which the transport roller 41 or the bearing bushes 45 of the shaft 40 of the transport roller 41 are received on the holding arms 79 of the bearing bridge 63, the holding arms 79 between the legs 43, 44 of the frame 42 and those on the bearing bushes 45 formed
Richtscheiben 46, 47 eingreifen, einerseits mit Freischnitten D von Seitenwand 6 und Bauteil 13 sowie E der Frontblende 3 die Zuordnung der im Träger 28 befindlichen Bauelemente zu den ortsfest im Einbaugehäuseteil 2 angeordneten Bauelementen in der Schließstellung des Trägers 28 anderseits mit einem Freischnitt F des Deckelteils 4 einen Schnitt des Trägers 28 und der diesem zugeordneten Schubeinrichtung 80 gemäß der Schnittlinie G in Figur 4. Dabei ist ersichtlich, dass die Riegel 58 mittels der Rasthaken 59 unter der Wirkung der Zugfeder 55 die als Rastglieder vorgesehenen Bolzen 75 hintergreifen und gleichzeitig mit den Schaltern 74 in Wirkverbindung stehen. Außerdem wirkt auf die Rasthaken 59 eine Druckfeder 81 der Schubeinrichtung 80 ein. Ferner zeigt die Figur 3, dass in der Schließstellung des Trägers 28 zwischen den Gleitflächen 61 der Betätigungsarme 60 und den als Anschläge dienenden Lappen 76 ein Abstand a besteht. Mit 82 ist ein an der Rückwand 8 angebrachter Gewindezapfen bezeichnet, der dem Ausrichten des Fahrtschreibers 1 bei dessen Einbau dient.Engage the directional disks 46, 47, on the one hand with free cuts D from the side wall 6 and component 13 and E of the front panel 3, the assignment of the components located in the carrier 28 to the components arranged in a fixed manner in the built-in housing part 2 in the closed position of the carrier 28 on the other hand with a free cut F of the cover part 4 shows a section of the carrier 28 and the pusher device 80 assigned to it in accordance with the section line G in FIG. 4. It can be seen that the latches 58 engage behind the bolts 75 provided as latching members by means of the latching hooks 59 under the action of the tension spring 55 and simultaneously with the switches 74 are in operative connection. In addition, a pressure spring 81 of the pushing device 80 acts on the latching hook 59. FIG. 3 also shows that in the closed position of the carrier 28 there is a distance a between the sliding surfaces 61 of the actuating arms 60 and the tabs 76 serving as stops. At 82 is a threaded pin attached to the rear wall 8 referred to, which serves to align the tachograph 1 during its installation.
Wie der Figur 4, insbesondere dem Freischnitt H in der Deckelplatte 17 entnommen werden kann, ist dieAs can be seen in FIG. 4, in particular the free cut H in the cover plate 17
Schubeinrichtung 80 in einem Rahmen 83 des zur Versteifung verstrebten und gekammerten Trägers 28 angeordnet. D.h., an einem als Schubglied dienenden Stößel 84 mit einem Stößelkopf 85 und einem die Druckfeder 81 lagernden Schaft 86 sind Fangarme 87 und 88 unmittelbar angeformt. Die Fangarme 87, 88 sind in dem Rahmen 83 geführt und dienen in Verbindung mit einer nicht näher bezeichneten Wand des Rahmens 83, durch die sie hindurchgeführt sind, der Hubbegrenzung des Stößels 84. Die Montage der Schubeinrichtung 80, die indem sich der Stößelkopf 85 unter der Wirkung der Druckfeder 81 an der Rückwand 8 des Fahrtschreibers 1 abstützt, nach dem Entriegeln ein Verschieben des Trägers 28 in eine Greifposition bewirkt, erfolgt in einfacher Weise dadurch, dass nach dem Aufstecken der Druckfeder 81 auf den Schaft 86, die Schubeinrichtung 80 in den Rahmen 83 eingeschoben und mittels der Fangarme 87, 88 auf dem Träger 28 gehaltert wird. Am Träger 28 ausgebildete Klinkenelemente dienen der Sicherung der Fangarme 87, 88, wenn diese beim Verschieben des Trägers 28 in die Halteposition kommen.Thrust device 80 arranged in a frame 83 of the braced and braced support 28 for stiffening. That is, catch arms 87 and 88 are formed directly on a plunger 84 serving as a thrust member with a plunger head 85 and a shaft 86 supporting the compression spring 81. The catch arms 87, 88 are guided in the frame 83 and, in conjunction with a wall of the frame 83, through which they are guided, through which they are guided, serve to limit the stroke of the plunger 84. The assembly of the pushing device 80, which is carried out by the plunger head 85 underneath supports the action of the compression spring 81 on the rear wall 8 of the tachograph 1, after unlocking causes the carrier 28 to be moved into a gripping position, is done in a simple manner in that after the compression spring 81 has been plugged onto the shaft 86, the pushing device 80 into the Frame 83 is inserted and held on the carrier 28 by means of the catch arms 87, 88. Pawl elements formed on the carrier 28 serve to secure the catch arms 87, 88 when they come into the holding position when the carrier 28 is moved.
Im Folgenden sei die Funktion des Entriegeins des Trägers 28 nochmals kurz zusammengefasst . Wird sichtbar, dass Druckmaterial in Form eines neuen Bandwickels 29 nachgefüllt werden muss, so wird durch Betätigen der Taste 38 der Träger 28 zunächst entriegelt. Beim Loslassen der Taste 38 verschiebt die Schubeinrichtung 80 den Träger in eine Greifposition. Danach lässt sich der Träger 28 - die Frontplatte 35 dient als Griffelement- in die Einlegeposition, die durch einen geeigneten, nicht dargestellten Anschlag bestimmt ist, aus dem Gerät herausziehen. Nach dem Einsetzen eines neuen Bandwickels 29 kann der Träger 28 durch Druck auf die Frontplatte 35 wieder in das Gerät zurückgeschoben werden, wobei das freie Ende des Druckträgers 73 so weit vom Bandwickel 29 abgezogen wird, dass es vor dem Einrasten der Riegelelemente 50, 51 und dem Indruckpositionkommen der Transportwalze 41 wenigstens die Transportwalze 41 überlappt. Im einzelnen besteht beim Betätigen der Taste 38 zum Entriegeln des Trägers 28 folgender Funktionsablauf. Zunächst werden, indem der Stift 53 auf der schiefen Ebene 54 der Taste 38 entlanggleitet, die auf der gemeinsamen Welle 52 befestigten Riegelelemente 50, 51entgegen der Wirkung der Zugfeder 55 in Pfeilrichtung P verschwenkt und dadurch die Verriegelung zwischen den Bolzen 75 und den Rasthaken 59 gelöst. Nach dem Durchlaufen des Abstandes a treffen die Betätigungsarme 60 auf die Lappen 76 auf. Dabei entsteht aufgrund des unterschiedlichen Abstandes zwischen der Welle 52 und den Auftreffpunkten der Betätigungsarme 60 auf den Lappen 76 einerseits und zwischen der Welle 52 und dem Stift 53 andererseits ein zweiarmiger Hebel. Letzterer bewirkt, indem sich beim weiteren Betätigen der Taste 38 die Gleitflächen 61 der Betätigungsarme 60 auf denn ortsfesten Lappen 76 abstützen, dass der Träger 28 durch Kraftumlenkung in Richtung Einlegeposition verschoben wird. Gleichzeitig werden, was ein gewisses Spiel zwischen den Führungsschienen 33, 34 und den Wangen 31, 32 des Trägers 28 oder eine gewisse Schwenkbarkeit der Transportwalze 41 um das sich treibende Zahnrad des Laufwerkes voraussetzt, die Lagerbuchsen 45 der Welle 40 der Transportwalze 41 über die Rastnasen 78 geschoben und damit die Transportwalze 41 außer Kraftschluss mit dem Thermodruckkopf 48 gebracht. In diese Situation wirkt die Schubeinrichtung 80 deren Gesamthub in Figur 4 mit b bezeichnet ist, derart, dass der nicht dargestellte Boden einer an der Frontwand 35 ausgebildeten, der Führung der Taste 38 dienenden Kammer, durch die ein Schaft 91 der Taste 38 durchgreift, an der noch festgehaltenen Taste 38 anschlägt und beim Loslassen der Taste 38 der Träger 28 in die Greifposition, bei der die Fangarme 87, 88 an dem Rahmen 83 anliegen, verschoben wird. Im Gegensatz zu der im Figur 2 gewählten Ausbildung der Taste 38 kann die Taste 38 auch eindeutig ausgebildet sein, d.h. mit einem flachprofilierten Schaft 91, an dem stirnseitig die schiefe Ebene 54 ausgebildet ist, versehen sein. The function of unlocking the carrier 28 is briefly summarized below. If it becomes apparent that printing material in the form of a new tape wrap 29 has to be refilled, the carrier 28 is first unlocked by pressing the key 38. When the button 38 is released, the pushing device 80 moves the carrier into a gripping position. Then the carrier 28 - the front plate 35 serves as a grip element - in the Pull the insertion position, which is determined by a suitable stop, not shown, out of the device. After inserting a new tape roll 29, the carrier 28 can be pushed back into the device by pressing the front plate 35, the free end of the print carrier 73 being pulled off the tape roll 29 to such an extent that it is before the locking elements 50, 51 and at least the transport roller 41 overlaps the printing position of the transport roller 41. In particular, when the key 38 is pressed to unlock the carrier 28, there is the following functional sequence. First, by sliding the pin 53 on the inclined plane 54 of the button 38, the locking elements 50, 51 fastened on the common shaft 52 are pivoted in the direction of arrow P against the action of the tension spring 55, thereby releasing the locking between the bolts 75 and the latching hooks 59 , After the distance a has passed, the actuating arms 60 strike the tabs 76. This creates a two-armed lever due to the different distance between the shaft 52 and the points of impact of the actuating arms 60 on the tab 76 on the one hand and between the shaft 52 and the pin 53 on the other hand. The latter has the effect that when the key 38 is pressed further, the sliding surfaces 61 of the actuating arms 60 are supported on the fixed tab 76 that the carrier 28 is displaced in the direction of the insertion position by force deflection. At the same time, what a certain play between the guide rails 33, 34 and the cheeks 31, 32 of the carrier 28 or a certain pivotability of the transport roller 41 around the driving gear of the drive, the bearing bushes 45 of the shaft 40 of the transport roller 41 over the locking lugs 78 pushed and thus brought the transport roller 41 out of friction with the thermal print head 48. In this situation, the thrust device 80 acts on its total stroke Figure 4 is designated b, such that the bottom, not shown, of a chamber formed on the front wall 35 and serving to guide the key 38, through which a shaft 91 of the key 38 passes, strikes the key 38 which is still held and when the key is released Key 38 of the carrier 28 into the gripping position, in which the catch arms 87, 88 rest against the frame 83, is displaced. In contrast to the design of the key 38 selected in FIG. 2, the key 38 can also be unambiguously designed, that is to say it can be provided with a flat-profiled shaft 91 on which the inclined plane 54 is formed on the end face.

Claims

Patentansprüche claims
1. Fahrtschreiber mit einem quaderförmigen Gehäuse und einer Druckvorrichtung, welche einen Thermodruckkopf, eine von einem Laufwerk angetriebene Transportwalze und einen aus dem Gehäuse herausbewegbaren, dem Nachladen eines den Druckmaterialvorrat bildenden Bandwickels dienenden Träger umfasst, sowie mit Mitteln zum Verriegeln und Entriegeln des Trägers in dessen Schließstellung im Gehäuse des FahrtSchreibers, dadurch gekennzeichnet, dass wenigstens ein unter der Wirkung einer Zugfeder (55) stehendes Riegelelement (51) vorgesehen ist, dass das Riegelelement (51) drehbar auf dem Träger (28) gelagert ist, dass einem Rasthaken (59) des Riegelelementes (51) ein Rastglied (75) ortsfest zugeordnet ist, dass einteilig mit dem Riegelelement (51) ein Betätigungsarm (60) ausgebildet ist, dass auf dem Träger (28) eine mit dem Betätigungsarm (60) in Wirkverbindung bringbare Taste (38) verschiebbar gelagert ist und dass ein dem Betätigungsarm (60) zugeordneter, ortsfester Anschlag (76) vorgesehen ist derart, dass beim Betätigen der Taste (38) ein Außereingriffbringen des1.Tachograph with a cuboid housing and a printing device which comprises a thermal print head, a transport roller driven by a drive and a carrier which can be moved out of the housing and is used for reloading a ribbon roll forming the supply of printing material, and with means for locking and unlocking the carrier therein Closed position in the housing of the tachograph, characterized in that at least one locking element (51) under the action of a tension spring (55) is provided, that the locking element (51) is rotatably mounted on the carrier (28), that a latching hook (59) a locking element (75) is fixedly assigned to the locking element (51), that an actuating arm (60) is formed in one piece with the locking element (51), that on the carrier (28) a button (38) which can be operatively connected to the actuating arm (60) ) is mounted displaceably and that a fixed stop (76) assigned to the actuating arm (60) It is provided that when the button (38) is pressed, the
Riegelelementes (51) mit dem Rastglied (75) und, indem sich der Betätigungsarm (60) an dem Anschlag (76) abstützt, ein Verschieben des Trägers (28) in Richtung Einlegeposition erfolgt.Locking element (51) with the locking member (75) and, by the actuating arm (60) being supported on the stop (76), the carrier (28) is displaced in the direction of the insertion position.
2. Fahrtschreiber nach Anspruch 1, dadurch gekennzeichnet, dass beiderseits des Trägers (28) Riegelelemente (50, 51) vorgesehen sind und dass die Riegelelemente (50, 51) auf einer in dem Träger ( 28) gelagerten Welle (52) befestigt sind.2. tachograph according to claim 1, characterized in that locking elements (50, 51) are provided on both sides of the support (28) and that the locking elements (50, 51) are fastened on a shaft (52) mounted in the support (28).
3. Fahrtschreiber nach Anspruch 1, dadurch gekennzeichnet, dass an dem Betätigungsarm (60) ein Stift (53) befestigt ist und dass die Taste (38) mit einer dem Stift (53) zugeordneten schiefen Ebene (54) versehen ist.3. Tachograph according to claim 1, characterized in that a pin (53) is attached to the actuating arm (60) and that the key (38) is provided with an inclined plane (54) assigned to the pin (53).
4. Fahrtschreiber nach Anspruch 1, dadurch gekennzeichnet , dass der Träger (28) frontseitig mit einem Greifmittel versehen ist.4. Tachograph according to claim 1, characterized in that the carrier (28) is provided on the front with a gripping means.
5. Fahrtschreiber nach Anspruch 2, dadurch gekennzeichnet, dass wenigstens einem Riegelelement (51) ein die Schließstellung des Trägers (28) meldender Schalter (74) zugeordnet ist .5. Tachograph according to claim 2, characterized in that at least one locking element (51) is assigned a switch (74) which signals the closed position of the carrier (28).
6. Fahrtschreiber nach Anspruch 1, dadurch gekennzeichnet, dass auf dem Träger (28) ein vorzugsweise mit der Rückwand (8) des FahrtSchreibers (1) zusammenwirkendes, gefedert gelagertes Schubglied (Stößels 84) angeordnet ist.6. Tachograph according to claim 1, characterized in that a spring-mounted thrust member (plunger 84), which preferably interacts with the rear wall (8) of the tachograph (1), is arranged on the carrier (28).
7. Fahrtschreiber nach Anspruch 1, dadurch gekennzeichnet, dass in an sich bekannter Weise die Druckvorrichtung derart angeordnet ist, dass der unter der Wirkung einer Feder stehender Thermodruckkopf (48) in einer an der Deckelplatte (17) des Einbaugehäuseteils (2) des FahrtSchreibers (1) befestigten Lagerbrücke (63) schwenkbar gelagert ist und die Transportwalze (41) und das Laufwerk dem Träger (28) zugeordnet sind, wobei in der Schließstellung des Trägers (28) die Transportwalze (41) sich unter dem federnd auf ihr aufliegenden Thermodruckkopf (48) an an der Lagerbrücke (63) ausgebildeten Haltearmen (79) abstützt und dass die den Riegelelementen (50, 51) zugeordneten Rastglieder (75) und Anschläge (76) an den Schenkeln (62) der Lagerbrücke (63) angeordnet bzw. ausgebildet sind.7. tachograph according to claim 1, characterized in that the printing device is arranged in a manner known per se such that the under the action of a Spring-mounted thermal print head (48) is pivotally mounted in a bearing bracket (63) attached to the cover plate (17) of the built-in housing part (2) of the tachograph (1) and the transport roller (41) and the drive are assigned to the carrier (28), whereby in the closed position of the carrier (28) the transport roller (41) is supported under the thermal print head (48) resiliently resting on it on holding arms (79) formed on the bearing bridge (63) and that the locking elements (50, 51) assigned to the locking elements (50, 51) 75) and stops (76) on the legs (62) of the bearing bracket (63) are arranged or formed.
8. Fahrtschreiber nach Anspruch 7, dadurch gekennzeichnet, dass den in einem Gestell (42) des Laufwerkes angeordneten Lagerbuchsen (45) der Transportwalze (41) an den Haltearmen (79) ausgebildete Rastnasen (78) zugeordnet sind und dass die Führung des Trägers (28) ein dem Hub der Rastnasen (78) entsprechendes Spiel aufweist.8. Tachograph according to claim 7, characterized in that the bearing bushes (45) arranged in a frame (42) of the drive of the transport roller (41) on the holding arms (79) are assigned detents (78) and that the guide of the carrier ( 28) has a game corresponding to the stroke of the locking lugs (78).
9. Fahrtschreiber nach Anspruch 7, dadurch gekennzeichnet, dass an den Haltearmen (79) Rastnasen (78) ausgebildet sind und dass die Transportwalze (41) konzentrisch zu dem sie treibenden Zahnrad schwenkbar im Gestell (42) des Laufwerkes angeordnet ist .9. tachograph according to claim 7, characterized in that on the holding arms (79) locking lugs (78) are formed and that the transport roller (41) is arranged pivotally in the frame (42) of the drive, concentrically to the gear wheel driving it.
10. Fahrtschreiber mit einem quaderförmigen Gehäuse und einer Druckvorrichtung, welche einen Thermodruckkopf, eine von einem Laufwerk angetriebene Transportwalze und einen aus dem Gehäuse herausbewegbaren, dem Nachladen eines den Druckmaterialvorrat bildenden Bandwickels dienenden Träger umfasst, wobei der unter der Wirkung einer Feder stehende Thermodruckkopf in einer an der Deckelplatte des Einbaugehäuseteils des Fahrtschreibers befestigten Lagerbrücke schwenkbar gelagert ist und die Transportwalze und das Laufwerk dem Träger zugeordnet sind und in der Schließstellung des Trägers die Transportwalze sich unter dem federnd auf ihr aufliegenden Thermodruckkopf an an der Lagerbrücke ausgebildeten Haltearmen abstützt sowie mit Mitteln zum Verriegeln und Entriegeln des Trägers in dessen Schließstellung im Gehäuse des Fahrtschreibers, dadurch gekennzeichnet, dass den in einem Gestell des Laufwerkes angeordneten Lagerbuchsen (45) der Transportwalze (41) an den Haltearmen (79) ausgebildete, dem Verriegeln des Trägers (28) durch den auf der Transportwalze (41) aufliegenden Thermodruckkopf (48) dienende Fassungen zugeordnet sind, dass auf einer drehbar in dem Träger (28) gelagerten Welle (52) befestigte, unter der Wirkung einer Zugfeder (55) stehende Entriegelungselemente vorgesehen sind, dass auf dem Träger (28) eine mit einem der Entriegelungselemente in Wirkverbindung stehende Taste (38) verschiebbar gelagert ist und dass an den Schenkeln (62) der Lagerbrücke (63) den Entriegelungselementen zugeordnete Anschläge (76) ausgebildet sind, derart dass beim Betätigen der Taste (38) durch Kraftumlenkung ein Herausheben der Lagerbuchsen aus den Fassungen und ein Verschieben des Trägers (28) in Richtung Einlegeposition erfolgt. 10. tachograph with a cuboid housing and a printing device, which a thermal print head, a drive roller driven by a drive and one Movable out of the housing, the reloading of a tape roll forming the printing material supply comprises carrier, wherein the thermal print head under the action of a spring is pivotally mounted in a bearing bracket fastened to the cover plate of the built-in housing part of the tachograph and the transport roller and the drive are assigned to the carrier and in the closed position of the carrier, the transport roller is supported under the spring-mounted thermal print head on holding arms formed on the bearing bridge, and with means for locking and unlocking the carrier in its closed position in the housing of the tachograph, characterized in that it is arranged in a frame of the drive Bearing bushes (45) of the transport roller (41) on the holding arms (79), which serve to lock the carrier (28) by means of the thermal print head (48) resting on the transport roller (41), are assigned to a rotatable Ar in the support (28) mounted shaft (52), under the action of a tension spring (55) unlocking elements are provided that on the support (28) is operatively connected to one of the unlocking elements button (38) is slidably mounted and that stops (76) assigned to the unlocking elements are formed on the legs (62) of the bearing bridge (63), such that when the button (38) is actuated by force deflection, the bearing bushes are lifted out of the sockets and the carrier (28) is moved in the direction Insert position is done.
EP03724851A 2002-04-05 2003-03-25 Tachograph comprising a cubic housing and a printing device Expired - Lifetime EP1493129B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10215122 2002-04-05
DE10215122A DE10215122B4 (en) 2002-04-05 2002-04-05 Tachograph with a cuboidal housing and a printing device
PCT/DE2003/000983 WO2003085605A1 (en) 2002-04-05 2003-03-25 Tachograph comprising a cubic housing and a printing device

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EP1493129A1 true EP1493129A1 (en) 2005-01-05
EP1493129B1 EP1493129B1 (en) 2005-10-12

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US (1) US7259776B2 (en)
EP (1) EP1493129B1 (en)
JP (1) JP4069076B2 (en)
AT (1) ATE306701T1 (en)
BR (1) BR0308994A (en)
DE (2) DE10215122B4 (en)
ES (1) ES2247538T3 (en)
WO (1) WO2003085605A1 (en)

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JP2005528676A (en) 2005-09-22
DE10215122A1 (en) 2003-10-30
EP1493129B1 (en) 2005-10-12
ATE306701T1 (en) 2005-10-15
ES2247538T3 (en) 2006-03-01
WO2003085605A1 (en) 2003-10-16
JP4069076B2 (en) 2008-03-26
DE10215122B4 (en) 2005-03-03
BR0308994A (en) 2005-01-04
DE50301364D1 (en) 2005-11-17
US7259776B2 (en) 2007-08-21
US20050057634A1 (en) 2005-03-17

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