EP0886621B1 - Drive arrangement for the core of a winding spool for a transfer strip of a transfer dispenser - Google Patents

Drive arrangement for the core of a winding spool for a transfer strip of a transfer dispenser Download PDF

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Publication number
EP0886621B1
EP0886621B1 EP97908161A EP97908161A EP0886621B1 EP 0886621 B1 EP0886621 B1 EP 0886621B1 EP 97908161 A EP97908161 A EP 97908161A EP 97908161 A EP97908161 A EP 97908161A EP 0886621 B1 EP0886621 B1 EP 0886621B1
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EP
European Patent Office
Prior art keywords
spool
gearwheel
core
take
gear arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97908161A
Other languages
German (de)
French (fr)
Other versions
EP0886621A1 (en
Inventor
Christoph Manusch
Wulf Herrmannsen
Udo Obersteller
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.)
Henkel Pritt Produktions GmbH
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Henkel Pritt Produktions GmbH
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Filing date
Publication date
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Publication of EP0886621A1 publication Critical patent/EP0886621A1/en
Application granted granted Critical
Publication of EP0886621B1 publication Critical patent/EP0886621B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/002—Web delivery apparatus, the web serving as support for articles, material or another web
    • B65H37/005—Hand-held apparatus
    • B65H37/007—Applicators for applying coatings, e.g. correction, colour or adhesive coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1788—Work traversing type and/or means applying work to wall or static structure
    • Y10T156/1795—Implement carried web supply

Definitions

  • the invention relates to a gear arrangement for driving the coil core a take-up spool for a transfer belt through the core of one side from the take-up spool and radially offset from this supply spool in the housing of a transfer dispenser or in an exchangeable cassette for such a gear with a first gear driven by the supply spool, that with a second gear, which drives the take-up reel is in meshing engagement, the pitch circle diameter of the second Gear smaller than that of the first gear and between the coil core in one of the two coils and the associated gear a slip clutch interposed as well as on each coil core and that of the other coil facing side a radially projecting washer is provided.
  • a gear arrangement for driving a coil core according to the features of the preamble of claim 1 is known from EP-A-0 427 870.
  • Transfer dispensers are widely used in the office and household sector used.
  • transfer dispenser hand-held devices for Transferring a film, such as an adhesive film or a cover-up film, from a carrier tape to a support
  • the film-coated carrier tape is wound on a supply spool within the device housing and from this is guided to an order foot protruding from the device.
  • the application foot By means of the application foot, the film-coated carrier tape can be against Substrate are pressed, in connection with the deflection of the tape the film layer is detached from the carrier tape at the application foot and onto the Substrate is transferred.
  • the empty carrier tape is then attached to the application foot deflected and returned to the take-up reel in the device housing.
  • the supply reel and take-up reel as well as the application foot are also in summarized in a cassette.
  • the supply spool drives the take-up spool, taking care when designing the gearbox must always be that the carrier tape under a desired Belt tension is maintained, regardless of how large the unwinding diameter of the carrier tape on the supply reel and the winding diameter of the carrier tape on the take-up reel.
  • the latter Solution is used particularly when the device housing in Form of an "elongated" housing is to be formed, in which a housing part its cross-section is relatively small and elongated, for example in the form of an elongated cylinder or a similar shape which enables the housing there like a thicker pen or fountain pen keep. Only at the end of this elongated part is the enlarged and somewhat thickened housing part attached to accommodate the two coils, he then hold the device above the back of the user's hand (similar to the plug cap of a fountain pen when writing), i.e. at a point where the convenient recording by the Hand of the user, which is done on the elongated, thinner housing part, not is affected.
  • the exchangeable cassette (refill cassette) a longitudinally extending partition wall section on the the supply spool on one side and the supply spool on the other side are rotatably mounted.
  • the coil core of the supply coil sits on one Rotary shot, which in turn is on one of the intermediate wall section of the Cassette protruding, cartridge-fixed axis of rotation rotatably supported.
  • the coil core of the supply coil sits under frictional engagement on the rotary mount on, which creates a frictionally acting slip clutch between the two.
  • the rotary mount is in turn with a radially protruding one Washer provided radially at the axial end of the core of the supply spool survives, which faces the intermediate wall portion of the cassette is, which prevents the supply belt from the side when operating the device slide off the supply roll in the direction of the intermediate wall section can.
  • This side wave section protrudes through the intermediate wall of the cassette onto the other Side over.
  • the take-up spool with its spool core is rotatably on it appropriate.
  • the object of the invention is a gear arrangement of the type mentioned for coils arranged side by side propose that in an even smaller width than in the generic arrangement and with even fewer individual parts and at the same time simple assembly is feasible.
  • this is the case for a generic gear arrangement achieved that both coil cores with their facing each other Ring discs partially rest against each other, that the first gear in Form of an internal toothing attached to the spool core of the supply spool is formed, in the interior of which the second gear is that the take-up spool with a central ring sleeve rotatable on a housing or cassette-fixed Bearing axis sits, and that the ring sleeve with a lateral approach is provided with the second gear meshing with the first gear an external toothing carries.
  • the space requirement in the direction of the width of the device or the exchangeable cassette is significantly lower than in the generic device because only the width of the two coils and their washers are covered here got to. Both coils or coil cores, with their washers together (and thus support each other in the axial direction) will be attached to the cassette or housing-fixed bearing axis in turn either from a side wall of the housing or the exchangeable cassette protrudes. Another space requirement in the direction of the width (axial direction of the Spools) is not required.
  • the gear arrangement according to the invention has a remarkable a small number of individual parts to be assembled together, namely two coil cores that (e.g. in one piece) with the radially protruding ones Ring discs are provided, as well as the slip clutch (which is in one piece with the lateral approach of their ring sleeve and the toothing attached to it of the second gear) and finally only the housing or cassette-fixed bearing axis with the associated side wall section the cassette or the housing.
  • the opposite of the generic Arrangement significantly reduced number of required parts simplified the overall construction and considerably facilitates and accelerates the overall assembly.
  • the coil cores of the two coils with their radially projecting washers partially abut each other can be without the need to use an intermediate wall for axial fixation of the two coil cores reach each other so that when the one coil core with its other axial end in a suitable shape on a side wall of the housing or the removable cassette is supported, only an axial one Fixation of the free end of the central ring sleeve with the other coil is connected on the bearing axis is required to the entire arrangement to be fixed to the housing or cassette.
  • the take-up spool with its central one Ring sleeve and its side with a toothing to form the to form the second gearwheel-provided shaft projection completely in one piece
  • the slip clutch between the core of the supply spool and the internal toothing must be suitably provided, e.g. by a corresponding friction fit between the coil core and one Rotary mount, which has the internal toothing.
  • the slip clutch arranged between the spool core of the take-up spool and the bearing axis is and includes the central ring sleeve.
  • the formation of the slip clutch can in any suitable form.
  • the slip clutch particularly preferably has however several spring tongues proceeding from the central ring sleeve, the pre-stressed against the inner diameter of the core of the take-up spool fit and wear this, so a shot for this form.
  • the internal toothing can be provided in any suitable form and with the Be the core of the supply coil connected. Is very particularly preferred the internal teeth, however, in one piece on the inner circumference of the coil core Supply spool formed, resulting in only a single component for both, which is preferably made of plastic and e.g. be made from injection molding can.
  • the outer diameter of the The washers of both coil cores are of the same size. This can be achieved that the space that is required by the meter performance Tape is predetermined specific outer diameter of the supply reel winding, can also be fully used on the winding side, with the core of the winding spool is designed so that the outer diameter of the full blank tape wrap corresponds to that of the full supply roll and thereby an advantageous low Winding height (number of layers of the winding belt) is reached.
  • Another advantageous embodiment of the invention is also that the coil core of the supply coil with its axial facing away from the ring disk End face in the axial direction on the side wall of the housing or supports a side wall of the removable cassette and on its inner circumference one or more support points from the point of engagement of the internal toothing is or are offset with the second gear, fixed to the housing or is supported in a cassette-proof manner.
  • the support part is particularly preferred as an arcuate extending over an angular section, with support part connected to the side wall of the housing or the cassette, that in the form of a small one that protrudes somewhat from this side wall arcuate stop can be formed with its radially outer Surface on a corresponding ring shoulder on the inside of the coil core the supply spool applies and supports this radially, its mobility fully retained in the direction of rotation.
  • This preferably supports arcuate support part the coil core of the supply coil over an angular range radially from about 180 °.
  • supporting part can also several, e.g. two or three or more more support parts are provided, the support surfaces of which are all on a corresponding one Circular arc are arranged, the inner diameter of a corresponding Ring bundle on the supply spool corresponds.
  • the support part is particularly preferably made in one piece with a side wall of the housing or the cassette designed so that a one-piece Component is created.
  • the arcuate support part but also made as a separate part and then in a suitable form with the side wall of the housing or the cassette be connected, for example by gluing or the like.
  • the slip clutch in the transmission arrangement according to the invention with several spring webs extending from the central ring sleeve are provided, it is particularly advantageous if, in addition to the spring bars, there are also radial ones Support bars for additional support of the inside diameter of the Winding spool are provided, in such a way that they with their radially inner Run ends into the spring bars.
  • the radial ones are preferred Provide support bars at their free ends with support shoes on their Surface each one of the inner surface of the core of the take-up spool have formally adapted contact surface. Is particularly advantageous it when the support shoes over their axial width, i.e.
  • An advantageous development of the invention also consists in that Support shoes on their axial ends, those on the opposite of the second gear Side, stops protruding radially beyond the support surface are axially against a corresponding on the inner circumference of the coil core of the take-up spool provided ring shoulder and this spool core and thus fix the take-up spool axially relative to the central ring sleeve.
  • the bearing axis is formed at least on a portion of its ring circumference is that there is an axially tapering at the free axial end of the bearing axis, has elastically bendable tongue which e.g. through two to each other and to the central axis of the bearing axis parallel slots can be generated by the free end of the bearing axis from a certain distance axially into the bearing axis run in, this resilient tongue wove its free End is provided with a radially projecting stop, which in the assembled Condition against the radial end face of the ring sleeve axially and both coils rotatably fixed relative to the side wall of the housing or the cassette.
  • the invention makes a surprisingly simple structure, very compact Building gear arrangement created that take up space in the direction of Width of the housing or the removable cassette required, which is particularly small is.
  • the arrangement according to the invention consists of a particularly few Individual parts that can be assembled quickly and easily, are easy to manufacture and thus a particularly inexpensive manufacture of the exchangeable cassette or allow the entire transfer dispenser.
  • FIG. 1 shows a side view of an interchangeable cassette 1, which is in the inserted State within a housing 2 indicated only by dash-dotted lines Transfer dispensers located.
  • FIG. 2 shows a section according to II-II from FIG. 1.
  • the exchangeable cassette 1 has a support structure which also has a side wall 1 ' comprises the one in the inserted state of the exchangeable cassette 1 of the side wall Housing 2 is immediately adjacent.
  • a transfer dispenser where no interchangeable cassettes are used, the one shown in FIGS. 1 and 2 could be used Side wall 1 'of the exchangeable cassette 1 in turn already from the side wall of the housing 2 are formed.
  • the interchangeable cassette comprises a take-up reel, which is formed by a coil core 3, on which a winding supply 4 is wound on the film-coated carrier tape 5.
  • This carrier tape 5 runs from the tape supply 4 of the carrier spool to a spring bar Deflection element 6, against which the running tape under it Belt tension is present and this to compensate for fluctuations the belt tension as well as a deflecting and guiding element for the correct infeed of the tape in the elongated, sectionally smaller housing section 2a of the housing 2 of the transfer dispenser is used.
  • This elongated housing section 2a is, as shown in FIGS. 1 and 2, designed so that it by the user easily gripped with the fingers and the device in the form of a fountain pen or similar can be held.
  • This elongated housing section 2a continues a widened housing section 2b for receiving the coils and Slipping clutch on.
  • This housing section 2b has only one greater width B than the housing section 2a (see FIG. 2), but is in its 1 can be seen (perpendicular to the central axis of the coil core 3rd seen) significantly larger.
  • the film-coated carrier tape 5 is after its entry into the elongated Housing section 2a attached to one at the lower end of the interchangeable cassette and at the free end of the elongate housing portion 2a thereof led outward projecting foot 7, but the width of 90 ° to the band level of the carrier band 5 at the entry point on the deflection element 6 is twisted.
  • the film-coated carrier tape 5 is therefore in the area between the deflection element 6 and the application edge 8 of the application foot 7 continuously also rotated by 90 ° so that its band level at the pressure edge 8 of the Order foot 7 is parallel to this.
  • the carrier tape 5 is from the side Guide projections 9 guided on the application foot 7 around the application edge 8 guided around and then (see FIG. 2) on the other side of the application foot 7 again over the elongated section 2a of the housing 2 to a second Deflection point 10 with a further rotation at 90 ° again.
  • the film-coated carrier tape 5 with the Pressure edge 8 of the application foot 7 against a corresponding substrate e.g. a base made of paper or similar is pressed on and the film (e.g. an adhesive film or a cover-up film) is transferred from the carrier tape 5 to the substrate, while the carrier tape 5 freed from the film after its deflection the application edge 8 is returned via the deflection point 10 to a take-up reel becomes.
  • a spool core 11 on which the carrier tape in Form of a winding 12 is wound.
  • FIG. 1 and 2 each show the Condition in which the winding supply 4 is still completely present on the take-up reel is, while on the reel core 11 of the take-up reel still no tape supply is present (which is dashed in Fig. 2 for information only in the case of one full take-up spool is displayed).
  • Fig. 1 the outer diameter of the Coil core 3 of the supply coil is only shown in dashed lines to a relative Representation of the positions of the coil cores 3 and 11.
  • the central axes of the coil cores 3 and 11 axially (i.e. in the longitudinal direction of the housing 2) offset from one another.
  • the coil core 3 of the supply coil has the Ring or flanged wheel 13 and the coil core 11 the ring or flanged wheel 14, as best seen in FIG. 3, which is an enlarged one 2 shows a sectional view of the gear arrangement from FIG.
  • the washers 13 and 14 face each other with their sides facing each other, so that they support each other in the axial direction. Because the side by side Coil cores 3 and 11, however, with their axes offset somewhat axially to one another 3, the radial ones touch, as FIG.
  • Ring discs 13 and 14 do not face each other along their entire length radial ring surfaces, but overlap, depending on their radial relative position to each other, only partially.
  • the mutual circumferential contact surface is, however, large enough to provide the required axial support guarantee.
  • This slip clutch 16 comprises star-shaped, radially extending support webs 17 with support shoes at their radial ends 18 are provided, with the spool core 11 of the take-up spool with its radial inner circumference on the outer circumferential surface of the support shoes 18 supports. As shown in FIGS.
  • the support webs 17 with their support shoes 18 and the spring webs 19 with their End strips 22 form an overall rotary mount on which the coil core 11 of the take-up spool is supported radially and at the same time as a slip clutch serves.
  • the support webs 17 are at their radially inner end via a ring section 23 connected to each other, this in turn via connecting ribs 24 is connected to a central ring sleeve 25.
  • the ring sleeve 25 has in turn, as shown in FIG. 3 in particular, a lateral shaft extension 26, which extends into the inner region of the coil core 3 and with a External toothing 27 is provided, as can be seen particularly well from FIG. 4 4, a section through the central plane IV-IV of the Supply spool (see. Fig. 3) shows.
  • the coil core 3 of the supply coil is in turn on its inner diameter provided with an internal toothing 28 and thus forms a first internal toothing Gear from that with the shaft extension 26 and the external toothing 27 formed second gear meshes with teeth, as is particularly the case can be seen well from Fig. 4.
  • the from the support bars 17, the support shoes 18, the spring bars 19 with whose end strips 22, the connecting section 23, the connecting ribs 24, the ring sleeve 25 and their lateral shaft extension 26 with the external toothing 27 existing slip clutch 16 is made in one piece from plastic.
  • the radial support surfaces of the support shoes 18 can have a cylindrical section be formed as shown in FIGS. 2 and 3. But you can too with a slight taper in the direction of the side wall 1 'of the exchangeable cassette 1 be provided in a decreasing manner, which facilitates insertion during assembly. However, this taper should only be very slight when used be carried out so that even in the assembled state still one good radial external contact with the inner circumference of the spool core 11 of the take-up spool is ensured.
  • a spring tongue 29 is on the circumference of the bearing axis 15 axially extending spring tongue 29 provided by two axial incisions 30 is formed in the body of the bearing axis 15, which is not entirely over their axial length extending from the free end of the bearing axis 15.
  • This spring tongue 29 is at its axial end with a radially protruding Stop 31 provided which the radial end face of the ring sleeve 25th axially supports against undesired slipping off the bearing axis 15.
  • the coil core 3 of the supply coil is on its axial, the side wall 1 ' Exchangeable cassette 1 facing end with a radially inwardly projecting Ring paragraph 32 provided with which it is on the one hand on the outer circumference of the End region of the shaft extension 26 of the ring sleeve 25 in the angular range supports, in which the internal toothing 28 of the coil core 3 with the external toothing 27 of the shaft extension 26 is in meshing engagement.
  • the flanged disc 13 is also supported, as can be clearly seen in FIG. 3 (right half) is, on its inner diameter on the outer circumference 36 of a step of the shaft approach 26.
  • the coil core 3 of the supply coil is supported on the radially opposite side with the radial inner surface of a ring shoulder 32 on one of the Side wall 1 'of the interchangeable cassette 1 protruding arch-shaped Support part 33 from.
  • This support part extends in the circumferential direction over a Angular range that is slightly larger than 180 °, and it supports the coil core 3 in radial direction with respect to the bearing axis 15.
  • the shaft extension 26 which in turn on the bearing axis 15 fixed to the housing is rotatably supported, is a sufficient overall for the coil core Rotational support created.
  • the assembly of the gearbox shown is carried out as follows: First, the coil core 3 is placed axially on the support part 33 and brought into contact with the radial inner circumferential surface of its ring part 32 against the outer circumferential surface of the support part 33 and thus aligned. The slip clutch 16 is then axially inserted into the radial inner region of the spool core 11 of the take-up spool until the stops 20 come into contact with the associated collar 21 of the spool core 11.
  • the gear arrangement has only a few parts, which usually all of them Suitable plastics consist: with the spool core 11 for the take-up spool integrally molded washer 14, next to the overall one-piece Slip clutch 16 (with the support bars 17, the support shoes 18, the spring bars 19, the central ring sleeve 25, the shaft extension 26 and the external toothing 27) and, as a further, third component, the core 3 of the take-up spool with its ring heel 32 and its washer 13. All parts , as described, only have to be inserted axially into one another or onto one another, only three axial plug-in operations are required.
  • the interchangeable cassette is further provided with a spring tongue 34 which its free end carries a locking cam 35 (Fig. 1 and 2), which in turn with a attached to the radially outer end portion of the washer 14 of the take-up spool Gearing is engaged and is designed as a backstop, so that only a winding, but not an unwinding movement is possible.
  • a spring tongue 34 which its free end carries a locking cam 35 (Fig. 1 and 2), which in turn with a attached to the radially outer end portion of the washer 14 of the take-up spool Gearing is engaged and is designed as a backstop, so that only a winding, but not an unwinding movement is possible.
  • the outside diameter of the core of the take-up spool is as shown Embodiment larger than the outside diameter of the coil core 3 the supply spool.
  • the coil core 3 is set in a rotary motion. Its internal toothing 28 drives the external toothing meshing with it 27 of the gear 26. Since the pitch circle diameter of the external toothing 27 is inevitably smaller than that of the internal toothing 28, causes when unwinding one revolution of the coil core 3 more than one revolution of the gear 26, thus the central ring sleeve 25 and via the slip clutch 16 of the coil core 11 of the take-up spool. This ensures that even at full Tape reel 4 on the supply reel from the start on the winding section the coil core 11 is greater than the length of the unwound carrier tape 5 and this is immediately put under tension. Once the one you want Belt tension, i.e.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Adhesive Tape Dispensing Devices (AREA)
  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Wire Bonding (AREA)
  • Unwinding Webs (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Mechanical Operated Clutches (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

PCT No. PCT/EP97/01052 Sec. 371 Date Mar. 18, 1999 Sec. 102(e) Date Mar. 18, 1999 PCT Filed Mar. 3, 1997 PCT Pub. No. WO97/33824 PCT Pub. Date Sep. 18, 1997In a gear arrangement for driving the spool core (11) of a take-up spool for a transfer tape (5) through the spool core (3) of a feed spool arranged laterally of and radially offset from the take-up spool in the housing (2) of a transfer dispenser or in a refill cassette (1) for a transfer dispenser, comprising a first gearwheel (28) which is driven by the feed spool and which meshes with a second gearwheel (26,27) designed to drive the take-up spool (11), the pitch diameter of the second gearwheel (27) being smaller than that of the first gearwheel (28), a slipping clutch (16) being provided between the spool core (11) of one of the two spools and the associated gearwheel (27) and a radially projecting annular disc (13;14) being disposed on each spool core (3;11) and its side facing the other spool, the two spool cores (3,11) bear partly against one another through their mutually opposite annular discs (13,14). In addition, the first gearwheel (28) is formed with inner teeth (28) which are integral with the spool core (3) of the feed spool and in the interior of which lies the second gearwheel (27), the take-up spool being mounted for rotation on a spindle (15) integral with the housing or the cassette through a central annular sleeve (25). The annular sleeve (25) has a lateral extension (26) which carries the second, externally toothed gearwheel (27) meshing with the first gearwheel (28).

Description

Die Erfindung bezieht sich auf eine Getriebeanordnung zum Antrieb des Spulenkerns einer Aufwickelspule für ein Transferband durch den Spulenkem einer seitlich von der Aufwickelspule und radial zu dieser versetzt angeordneten Vorratsspule im Gehäuse eines Transferdispensers bzw. in einer Wechselkassette für einen solchen, mit einem von der Vorratsspule angetriebenen ersten Zahnrad, das mit einem zweiten Zahnrad, welches zum Antrieb der Aufwickelspule dient, in kämmendem Eingriff steht, wobei der Teilkreisdurchmesser des zweiten Zahnrads kleiner als der des ersten Zahnrads und zwischen dem Spulenkern in einer der beiden Spulen und dem zugeordneten Zahnrad eine Rutschkupplung zwischengeschaltet sowie an jedem Spulenkern und dessen der anderen Spule zugewandten Seite eine radial überstehende Ringscheibe vorgesehen ist.The invention relates to a gear arrangement for driving the coil core a take-up spool for a transfer belt through the core of one side from the take-up spool and radially offset from this supply spool in the housing of a transfer dispenser or in an exchangeable cassette for such a gear with a first gear driven by the supply spool, that with a second gear, which drives the take-up reel is in meshing engagement, the pitch circle diameter of the second Gear smaller than that of the first gear and between the coil core in one of the two coils and the associated gear a slip clutch interposed as well as on each coil core and that of the other coil facing side a radially projecting washer is provided.

Ein Getriebe anordnung zum Antrieb eines Spulenkerns gemäß den Merkmalen des Oberbegriffs von Anspruch 1 ist aus der EP-A-0 427 870 bekannt.A gear arrangement for driving a coil core according to the features of the preamble of claim 1 is known from EP-A-0 427 870.

Im Büro- und Haushaltsbereich werden Transferdispenser in weitem Rahmen eingesetzt. Dabei versteht man unter "Transferdispenser" Handgeräte zum Übertragen eines Films, etwa eines Klebstoff-Films oder eines Cover-Up-Films, von einem Trägerband auf eine Unterlage, wobei das filmbeschichtete Trägerband innerhalb des Gerätegehäuses auf einer Vorratsspule aufgewickelt ist und von dieser aus zu einem aus dem Gerät vorragenden Auftragfuß geführt wird. Mittels des Auftragfußes kann das filmbeschichtete Trägerband gegen ein Substrat angedrückt werden, wobei in Verbindung mit der Umlenkung des Bandes am Auftragfuß die Filmschicht vom Trägerband abgelöst und auf das Substrat übertragen wird. Anschließend wird das leere Trägerband an dem Auftragfuß umgelenkt und in das Gerätegehäuse zu einer Aufwickelspule zurückgeführt. Oftmals sind Vorratsspule und Aufwickelspule sowie der Auftragfuß auch in einer Kassette zusammengefaßt.Transfer dispensers are widely used in the office and household sector used. Here one understands "transfer dispenser" hand-held devices for Transferring a film, such as an adhesive film or a cover-up film, from a carrier tape to a support, the film-coated carrier tape is wound on a supply spool within the device housing and from this is guided to an order foot protruding from the device. By means of the application foot, the film-coated carrier tape can be against Substrate are pressed, in connection with the deflection of the tape the film layer is detached from the carrier tape at the application foot and onto the Substrate is transferred. The empty carrier tape is then attached to the application foot deflected and returned to the take-up reel in the device housing. Often the supply reel and take-up reel as well as the application foot are also in summarized in a cassette.

Durch den bei der Benutzung des Gerätes bei dessen Bewegung über das Substrat erfolgenden Abzug des Trägerbandes von der Vorratsspule wird die Vorratsspule in Drehung versetzt. Über ein entsprechendes Zwischengetriebe sowie unter Zwischenschaltung der Rutschkupplung treibt dabei die Vorratsspule die Aufwickelspule an, wobei bei der Auslegung des Getriebes dafür Sorge getragen werden muß, daß stets das Trägerband unter einer gewünschten Bandspannung gehalten wird, unabhängig davon, wie groß gerade der Abwickeldurchmesser des Trägerbandes auf der Vorratsspule und der Aufwickeldurchmesser des Trägerbandes auf der Aufwickelspule ist.By using the device when moving it over the The substrate tape is removed from the supply spool Supply spool rotated. Via an appropriate intermediate gear and with the interposition of the slip clutch, the supply spool drives the take-up spool, taking care when designing the gearbox must always be that the carrier tape under a desired Belt tension is maintained, regardless of how large the unwinding diameter of the carrier tape on the supply reel and the winding diameter of the carrier tape on the take-up reel.

Bei den bekannten Transferdispensern gibt es die Möglichkeit, die Aufwickelspule und die Vorratsspule in derselben Ebene hintereinander anzuordnen, was jedoch zu relativ großen Geräten führt. Stattdessen kann man die beiden Spulen jedoch auch nebeneinander anordnen, wobei sowohl koaxiale, wie auch in Achsrichtung leicht zueinander versetzte Spulenanordnungen bekannt sind. Hierdurch kann das Gerätegehäuse in seiner Längsrichtung deutlich kürzer als im Falle von in einer Ebene hintereinander angeordneten Spulen ausgeführt werden, wobei lediglich im Bereich der Spulenaufnahme das Gehäuse, bedingt durch die nebeneinander liegenden Spulen, etwas dicker ausgebildet sein muß. Die letztgenannte Lösung wird insbesondere dann eingesetzt, wenn das Gerätegehäuse in Form eines "länglichen" Gehäuses ausgebildet werden soll, bei dem ein Gehäuseteil in seinem Querschnitt verhältnismäßig klein und länglich ausgebildet ist, etwa in Form eines länglichen Zylinders oder einer ähnlichen Form, die es ermöglicht, das Gehäuse dort wie einen dickeren Stift oder einen Füllfederhalter zu haltern. Erst am Ende dieses länglichen Teiles ist der vergrößerte und etwas verdickte Gehäuseteil zur Aufnahme der beiden Spulen angebracht, wobei er sich beim Halten des Gerätes dann oberhalb des Handrückens des Benutzers befindet (ähnlich wie die aufgesteckte Verschlußkappe eines Füllfederhalters beim Schreiben), also an einer Stelle, an der die bequeme Erfassung durch die Hand des Benutzers, die an dem länglichen, dünneren Gehäuseteil erfolgt, nicht beeinträchtigt wird.With the known transfer dispensers, there is the option of the take-up spool and arrange the supply spool one after the other in the same plane, what however leads to relatively large devices. Instead you can use the two coils but also arrange next to each other, both coaxial and in the axial direction slightly offset coil arrangements are known. Hereby can the device housing in its longitudinal direction significantly shorter than in the case of coils arranged one behind the other in a plane, whereby only in the area of the coil holder the housing, due to the side by side lying coils must be somewhat thicker. The latter Solution is used particularly when the device housing in Form of an "elongated" housing is to be formed, in which a housing part its cross-section is relatively small and elongated, for example in the form of an elongated cylinder or a similar shape which enables the housing there like a thicker pen or fountain pen keep. Only at the end of this elongated part is the enlarged and somewhat thickened housing part attached to accommodate the two coils, he then hold the device above the back of the user's hand (similar to the plug cap of a fountain pen when writing), i.e. at a point where the convenient recording by the Hand of the user, which is done on the elongated, thinner housing part, not is affected.

Bei solchen "länglichen" Handgeräten liegt ein wesentlicher Augenmerk darin, auch das vergrößerte Gehäuseteil am Ende des länglichen Gerätes so auszubilden, daß seine Breite (also sein Raumbedarf in axialer Richtung der Spulen gesehen) möglichst gering ist, um insgesamt ein möglichst handliches und kleines Gerät zur Verfügung zu stellen.With such "elongated" handheld devices, it is essential to also design the enlarged housing part at the end of the elongated device in such a way that its width (i.e. its space requirement seen in the axial direction of the coils) is as small as possible to make it as small and handy as possible To provide the device.

Bei einem solchen bekannten, auf dem Markt unter der Bezeichnung "Tombo" angebotenen Gerät der eingangs genannten Art, bei dem die beiden Spulen in einer Wechselkassette angebracht sind, weist die Wechselkassette (Refill-Kassette) einen in Längsrichtung verlaufenden Zwischenwandabschnitt auf, auf dessen einer Seite die Vorratsspule und auf dessen anderer Seite die Abwickelspule drehbar gelagert sind. Dabei sitzt der Spulenkern der Vorratsspule auf einer Drehaufnahme, die sich ihrerseits auf einer von dem Zwischenwandabschnitt der Kassette vorstehenden, kassettenfesten Drehachse verdrehbar abstützt. Dabei sitzt der Spulenkern der Vorratsspule unter Reibschluß auf der Drehaufnahme auf, wodurch eine reibschlüssig wirkende Rutschkupplung zwischen beiden entsteht. Die Drehaufnahme ist ihrerseits mit einer radial überstehenden Ringscheibe versehen, die radial an dem axialen Ende des Spulenkerns der Vorratsspule übersteht, das dem Zwischenwandabschnitt der Kassette zugewendet ist, wodurch verhindert wird, daß das Vorratsband bei Betrieb des Gerätes seitlich in Richtung auf den Zwischenwandabschnitt hin vom Vorratswickel abgleiten kann. Zwischen dieser Ringscheibe und dem Zwischenwandabschnitt ist einstückig an der Drehaufnahme ein Zahnrad ausgebildet, das mit einem zweiten, kleineren Zahnrad kämmt, dessen Mittelachse in Längsrichtung des Gerätes zur Mittelachse der Drehaufnahme versetzt ist und seinerseits einen mit ihm einstückig ausgebildeten seitlichen Wellenabschnitt aufweist, über den es im Zwischenwandabschnitt der Kassette drehbar gelagert ist. Dieser seitliche Wellenabschnitt ragt durch die Zwischenwand der Kassette hindurch auf deren andere Seite hinüber. Dort ist die Aufwickelspule mit ihrem Spulenkern drehfest auf ihm angebracht.In such a known, on the market under the name "Tombo" offered device of the type mentioned, in which the two coils in an exchangeable cassette is attached, the exchangeable cassette (refill cassette) a longitudinally extending partition wall section on the the supply spool on one side and the supply spool on the other side are rotatably mounted. The coil core of the supply coil sits on one Rotary shot, which in turn is on one of the intermediate wall section of the Cassette protruding, cartridge-fixed axis of rotation rotatably supported. Here the coil core of the supply coil sits under frictional engagement on the rotary mount on, which creates a frictionally acting slip clutch between the two. The rotary mount is in turn with a radially protruding one Washer provided radially at the axial end of the core of the supply spool survives, which faces the intermediate wall portion of the cassette is, which prevents the supply belt from the side when operating the device slide off the supply roll in the direction of the intermediate wall section can. Is in one piece between this washer and the intermediate wall section formed a gear on the rotary mount, which with a second, smaller gear meshes, the central axis in the longitudinal direction of the device for Central axis of the rotary mount is offset and in turn one piece with it trained side shaft portion, over which it is in the intermediate wall portion the cassette is rotatably mounted. This side wave section protrudes through the intermediate wall of the cassette onto the other Side over. There, the take-up spool with its spool core is rotatably on it appropriate.

Bei der Vorrats- und bei der Aufwickelspule ist ferner an dem jeweiligen axialen freien Ende der betreffenden Spule von der Außenseite her noch eine radial überstehende Seitenscheibe auf die jeweilige zentrale Drehachse aufgesteckt, um zu vermeiden, daß bei der Benutzung das Trägerband auch auf dieser Seite seitlich vom Bandwickel abrutschen kann.In the supply and in the take-up spool is also on the respective axial free end of the coil in question from the outside still a radial protruding side window attached to the respective central axis of rotation, to avoid that the carrier tape is also on this side when in use can slip off the side of the tape wrap.

Bei der Getriebeanordnung der Wechselkassette dieses bekannten Transferdispensers ist der Raumbedarf in Richtung der Breite der Kassette (d.h. in Axialrichtung der Spulen gesehen) vergleichsweise groß, da hier nicht nur die Spulenbreiten aufgenommen werden müssen, sondern auch noch der Breite der äußeren Abdeckscheiben an beiden Spulen, der Dicke der beiden Ringscheiben, der Dicke des Zwischenbandabschnitts und der Dicke der beiden Zahnräder auf der Seite der Vorratsspule Rechnung getragen werden muß. Zudem ist eine vergleichsweise große Anzahl von Einzelteilen für den Aufbau der geschilderten Anordnung dieses bekannten Gerätes erforderlich.In the gear arrangement of the exchangeable cassette of this known transfer dispenser is the space requirement in the direction of the width of the cassette (i.e. in the axial direction seen the coils) comparatively large, since here not only the coil widths must be included, but also the width of the outer Cover disks on both coils, the thickness of the two ring disks, the Thickness of the intermediate belt section and the thickness of the two gears on the Side of the supply spool must be taken into account. It is also a comparative one large number of individual parts for the construction of the described Arrangement of this known device is required.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Getriebeanordnung der eingangs genannten Art für nebeneinander angeordnete Spulen vorzuschlagen, die in noch geringerer Breite als bei der gattungsgemäßen Anordnung und mit noch weniger Einzelteilen bei gleichzeitig einfachem Aufbau realisierbar ist.Proceeding from this, the object of the invention is a gear arrangement of the type mentioned for coils arranged side by side propose that in an even smaller width than in the generic arrangement and with even fewer individual parts and at the same time simple assembly is feasible.

Erfindungsgemäß wird dies bei einer gattungsgemäßen Getriebeanordnung dadurch erreicht, daß beide Spulenkerne mit ihren einander zugewandten Ringscheiben teilweise aneinander anliegen, daß ferner das erste Zahnrad in Form einer am Spulenkern der Vorratsspule angebrachten Innenverzahnung ausgebildet ist, in deren Innenraum das zweite Zahnrad liegt, daß die Aufwickelspule mit einer zentralen Ringhülse verdrehbar auf einer gehäuse- bzw. kassettenfesten Lagerachse sitzt, und daß die Ringhülse mit einem seitlichen Ansatz versehen ist, der das zweite mit dem ersten Zahnrad kämmende Zahnrad mit einer Außenverzahnung trägt.According to the invention, this is the case for a generic gear arrangement achieved that both coil cores with their facing each other Ring discs partially rest against each other, that the first gear in Form of an internal toothing attached to the spool core of the supply spool is formed, in the interior of which the second gear is that the take-up spool with a central ring sleeve rotatable on a housing or cassette-fixed Bearing axis sits, and that the ring sleeve with a lateral approach is provided with the second gear meshing with the first gear an external toothing carries.

Bei der Erfindung ist der Raumbedarf in Richtung der Breite des Gerätes bzw. der Wechselkassette deutlich geringer als bei dem gattungsgemäßen Gerät, da hier nur die Breite der beiden Spulen und deren Ringscheiben überdeckt werden muß. Beide Spulen bzw. Spulenkerne, die mit ihren Ringscheiben aneinander anliegen (und sich auf diese Weise in Axialrichtung gegeneinander abstützen) werden auf der kassetten- bzw. gehäusefesten Lagerachse befestigt werden, die ihrerseits entweder von einer Seitenwand des Gehäuses bzw. der Wechselkassette vorragt. Ein weiterer Platzbedarf in Richtung der Breite (Axialrichtung der Spulen) ist nicht erforderlich.In the invention, the space requirement in the direction of the width of the device or the exchangeable cassette is significantly lower than in the generic device because only the width of the two coils and their washers are covered here got to. Both coils or coil cores, with their washers together (and thus support each other in the axial direction) will be attached to the cassette or housing-fixed bearing axis in turn either from a side wall of the housing or the exchangeable cassette protrudes. Another space requirement in the direction of the width (axial direction of the Spools) is not required.

Zudem weist die erfindungsgemäße Getriebeanordnung eine bemerkenswert kleine Anzahl von aneinander bzw. ineinander zu montierenden Einzelteilen auf, nämlich zwei Spulenkerne, die (z.B. einstückig) mit den radial überstehenden Ringscheiben versehen sind, sowie ferner die Rutschkupplung (die einstückig mit dem seitlichen Ansatz ihrer Ringhülse und der auf ihm angebrachten Verzahnung des zweiten Zahnrads ausgebildet ist) und schließlich nur noch die gehäuse- bzw. kassettenfest Lagerachse mit dem zugehörigen Seitenwandabschnitt der Kassette oder des Gehäuses. Die gegenüber der gattungsgemäßen Anordnung deutlich reduzierte Anzahl der erforderlichen Einzelteile vereinfacht die Gesamtkonstruktion und erleichtert und beschleunigt erheblich die Gesamtmontage. In addition, the gear arrangement according to the invention has a remarkable a small number of individual parts to be assembled together, namely two coil cores that (e.g. in one piece) with the radially protruding ones Ring discs are provided, as well as the slip clutch (which is in one piece with the lateral approach of their ring sleeve and the toothing attached to it of the second gear) and finally only the housing or cassette-fixed bearing axis with the associated side wall section the cassette or the housing. The opposite of the generic Arrangement significantly reduced number of required parts simplified the overall construction and considerably facilitates and accelerates the overall assembly.

Dadurch, daß bei der Erfindung die Spulenkerne der beiden Spulen mit ihren radial überstehenden Ringscheiben teilweise aneinander anliegen, läßt sich ohne die Notwendigkeit der Verwendung einer Zwischenwand eine axiale Fixierung der beiden Spulenkerne zueinander erreichen, so daß, wenn der eine Spulenkern mit seinem anderen axialen Ende in geeigneter Form an einer Seitenwand des Gehäuses oder der Wechselkassette abgestützt ist, nur noch eine axiale Fixierung des freien Endes der zentralen Ringhülse, die mit der anderen Spule verbunden ist, auf der Lagerachse erforderlich ist, um die gesamte Anordnung gehäuse- bzw. kassettenfest zu fixieren. Ferner wird bei der Erfindung durch die Verwendung eines Zahnradgetriebes mittels einer Innenverzahnung die Möglichkeit geschaffen, die beiden Zahnräder in der Ebene der Vorratsspule (nämlich innerhalb des von deren Spulenkern umschlossenen Innenbereichs) anzuordnen, so daß hierfür kein zusätzlicher Platzbedarf mehr für das Zahnradgetriebe benötigt wird. Von Vorteil ist bei der Erfindung weiterhin, daß die miteinander kämmenden Zähne ohne Belastung in Kraftrichtung sind.Characterized in that in the invention, the coil cores of the two coils with their radially projecting washers partially abut each other, can be without the need to use an intermediate wall for axial fixation of the two coil cores reach each other so that when the one coil core with its other axial end in a suitable shape on a side wall of the housing or the removable cassette is supported, only an axial one Fixation of the free end of the central ring sleeve with the other coil is connected on the bearing axis is required to the entire arrangement to be fixed to the housing or cassette. Furthermore, in the invention by the The use of a gear transmission by means of internal teeth created the two gears in the plane of the supply spool (namely to be arranged within the inner area enclosed by their coil core), so that no additional space is required for the gear transmission is needed. Another advantage of the invention is that the meshing teeth are without load in the direction of the force.

Bei der Erfindung besteht die Möglichkeit, z.B. die Aufwickelspule mit ihrer zentralen Ringhülse und deren seitlichem, mit einer Verzahnung zur Ausbildung des zweiten Zahnrads versehenen Wellenansatz vollständig einstückig auszubilden, wobei in diesem Fall die Rutschkupplung zwischen dem Spulenkern der Vorratsspule und der Innenverzahnung geeignet vorgesehen sein muß, z.B. durch einen entsprechenden reibschlüssigen Sitz zwischen dem Spulenkem und einer Drehaufnahme, welche die Innenverzahnung aufweist. Eine besonders bevorzugte Ausgestaltung der Erfindung besteht jedoch darin, daß die Rutschkupplung zwischen dem Spulenkern der Aufwickelspule und der Lagerachse angeordnet ist und die zentrale Ringhülse umfaßt. Die Ausbildung der Rutschkupplung kann in jeder geeigneten Form erfolgen. Besonders bevorzugt weist die Rutschkupplung jedoch mehrere von der zentralen Ringhülse ausgehende Federzungen auf, die unter Vorspannung gegen den Innendurchmesser des Spulenkerns der Aufwickelspule anliegen und diesen tragen, also eine Drehaufnahme für diesen ausbilden. Dadurch läßt sich mit der Rutschkupplung eine noch längere gute Funktionsfähigkeit als in dem Fall erreichen, in dem die Rutschkupplung nur aus einem rein reibschlüssigen Sitz des Spulenkerns auf einer entsprechenden Drehaufnahme, wie etwa bei der gattungsgemäßen Getriebeanordnung, besteht, was schon bei Auftreten kleinster, durch die Reibung bedingter Abnutzungserscheinungen sogleich zu einer merklichen Beeinflussung des Reibmomentes und damit zu einer Änderung der Eigenschaften der Rutschkupplung führt.In the invention there is the possibility, e.g. the take-up spool with its central one Ring sleeve and its side, with a toothing to form the to form the second gearwheel-provided shaft projection completely in one piece, in which case the slip clutch between the core of the supply spool and the internal toothing must be suitably provided, e.g. by a corresponding friction fit between the coil core and one Rotary mount, which has the internal toothing. A particularly preferred one Embodiment of the invention, however, is that the slip clutch arranged between the spool core of the take-up spool and the bearing axis is and includes the central ring sleeve. The formation of the slip clutch can in any suitable form. The slip clutch particularly preferably has however several spring tongues proceeding from the central ring sleeve, the pre-stressed against the inner diameter of the core of the take-up spool fit and wear this, so a shot for this form. This means that the slip clutch can be used for an even longer period of time Functionality than in the case where the slip clutch just off a purely frictional fit of the coil core on a corresponding There is rotation, such as in the generic gear arrangement, which already occurs when the smallest signs of wear due to friction occur immediately to a noticeable influence on the friction torque and thus leads to a change in the properties of the slip clutch.

Die Innenverzahnung kann in jeder geeigneten Form vorgesehen und mit dem Spulenkern der Vorratsspule verbunden sein. Ganz besonders bevorzugt wird die Innenverzahnung jedoch einstückig am Innenumfang des Spulenkerns der Vorratsspule ausgebildet, wodurch sich für beides nur ein einziges Bauteil ergibt, das bevorzugt aus Kunststoff besteht und z.B. aus Spritzguß hergestellt werden kann.The internal toothing can be provided in any suitable form and with the Be the core of the supply coil connected. Is very particularly preferred the internal teeth, however, in one piece on the inner circumference of the coil core Supply spool formed, resulting in only a single component for both, which is preferably made of plastic and e.g. be made from injection molding can.

In vorteilhafter Ausgestaltung der Erfindung sind die Außendurchmesser der Ringscheiben beider Spulenkerne gleich groß ausgebildet. Dadurch kann erreicht werden, daß der Raum, der von dem von der geforderten Meterleistung Band bestimmten Außendurchmesser des Vorratsspulenwickels vorgegeben ist, auch aufwickelseitig voll genutzt werden kann, wobei der Kern der Aufwickelspule so ausgelegt wird, daß der Außendurchmesser des vollen Leerbandwickels dem des vollen Vorratswickels entspricht und dadurch eine vorteilhafte niedrige Wickelhöhe (Lagenzahl des Aufwickelbandes) erreicht wird.In an advantageous embodiment of the invention, the outer diameter of the The washers of both coil cores are of the same size. This can be achieved that the space that is required by the meter performance Tape is predetermined specific outer diameter of the supply reel winding, can also be fully used on the winding side, with the core of the winding spool is designed so that the outer diameter of the full blank tape wrap corresponds to that of the full supply roll and thereby an advantageous low Winding height (number of layers of the winding belt) is reached.

Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht auch darin, daß der Spulenkern der Vorratsspule mit seiner der Ringscheibe abgewandten axialen Stirnfläche sich in axialer Richtung an der Seitenwand des Gehäuses bzw. einer Seitenwand der Wechselkassette abstützt und an seinem Innenumfang an einer oder mehreren Stützstellen, die von der Eingriffsstelle der Innenverzahnung mit dem zweiten Zahnrad versetzt angebracht ist bzw. sind, gehäusefest bzw. kassettenfest abgestützt wird. Bevorzugt kann dies dadurch geschehen, daß der Spulenkern der Vorratsspule an einer der Eingriffsstelle ihrer Innenverzahnung mit dem zweiten Zahnrad radial gegenüberliegenden Stelle von einem an der Seitenwand des Gehäuses oder der Kassette befestigten Stützteil radial zu seiner Drehachse hin abgestützt wird, so daß hier zwei einander um etwa 180° gegenüberliegender Abstützstellen geschaffen sind, nämlich zum einen dieses Stützteil und zum anderen die Eingriffsstelle zwischen der Innenverzahnung und dem zweiten Zahnrad. Dadurch wird der Spulenkern der Vorratsspule insgesamt auch in radialer Richtung fixiert. Besonders bevorzugt ist dabei das Stützteil als ein sich über einen Winkelabschnitt hinweg erstreckendes bogenförmiges, mit der Seitenwand des Gehäuses bzw. der Kassette verbundenes Stützteil ausgebildet, das in Form eines kleinen, von dieser Seitenwand etwas überstehenden bogenförmigen Anschlags ausgebildet sein kann, der mit seiner radial äußeren Fläche sich an einer entsprechenden Ringschulter auf der Innenseite des Spulenkerns der Vorratsspule anlegt und diesen radial abstützt, wobei dessen Beweglichkeit in Drehrichtung voll erhalten bleibt. Bevorzugt stützt dabei das bogenförmige Stützteil den Spulenkem der Vorratsspule über einen Winkelbereich von etwa 180° hinweg radial ab. Statt eines einzelnen durchgehenden bogenförmigen Stützteils können aber auch mehrere, z.B. zwei oder drei oder noch mehr Stützteile, vorgesehen sein, deren Stützflächen alle auf einem entsprechenden Kreisbogen angeordnet sind, der dem Innendurchmesser eines entsprechenden Ringbundes an der Vorratsspule entspricht.Another advantageous embodiment of the invention is also that the coil core of the supply coil with its axial facing away from the ring disk End face in the axial direction on the side wall of the housing or supports a side wall of the removable cassette and on its inner circumference one or more support points from the point of engagement of the internal toothing is or are offset with the second gear, fixed to the housing or is supported in a cassette-proof manner. This can preferably be done in that the Coil core of the supply coil at one of the engagement points of its internal toothing with the second gear radially opposite point from one to the Side wall of the housing or the cassette attached support part radially to it Axis of rotation is supported so that here two opposite each other by about 180 ° Support points are created, namely this one Support part and the other the point of engagement between the internal teeth and the second gear. As a result, the coil core of the supply coil as a whole also fixed in the radial direction. The support part is particularly preferred as an arcuate extending over an angular section, with support part connected to the side wall of the housing or the cassette, that in the form of a small one that protrudes somewhat from this side wall arcuate stop can be formed with its radially outer Surface on a corresponding ring shoulder on the inside of the coil core the supply spool applies and supports this radially, its mobility fully retained in the direction of rotation. This preferably supports arcuate support part the coil core of the supply coil over an angular range radially from about 180 °. Instead of a single continuous arch But supporting part can also several, e.g. two or three or more more support parts are provided, the support surfaces of which are all on a corresponding one Circular arc are arranged, the inner diameter of a corresponding Ring bundle on the supply spool corresponds.

Besonders bevorzugt wird das Stützteil einstückig mit einer Seitenwand des Gehäuses bzw. der Kassette ausgebildet, so daß auch insoweit ein einteiliges Bauteil entsteht. Selbstverständlich kann, wenn dies aus irgendwelchen Gründen gewünscht ist, das bogenförmige Stützteil aber auch als getrenntes Teil gefertigt und dann in geeigneter Form mit der Seitenwand des Gehäuses bzw. der Kassette verbunden werden, etwa durch Klebung o.ä. The support part is particularly preferably made in one piece with a side wall of the housing or the cassette designed so that a one-piece Component is created. Of course, if this is for any reason is desired, the arcuate support part but also made as a separate part and then in a suitable form with the side wall of the housing or the cassette be connected, for example by gluing or the like.

Wenn die Rutschkupplung bei der erfindungsgemäßen Getriebeanordnung mit mehreren von der zentralen Ringhülse ausgehenden Federstegen versehen ist, ist es besonders vorteilhaft, wenn neben den Federstegen auch noch radial verlaufende Stützstege zur zusätzlichen Abstützung des Innendurchmessers der Aufwickelspule vorgesehen sind, und zwar derart, daß sie mit ihren radial innenliegenden Enden in die Federstege einlaufen. Bevorzugt werden dabei die radialen Stützstege an ihren freien Enden mit Stützschuhen versehen, die an ihrer Oberfläche jeweils eine der Innenfläche des Spulenkerns der Aufwickelspule formmäßig angepaßte Anlagefläche aufweisen. Ganz besonders vorteilhaft ist es, wenn die Stützschuhe über ihre axiale Breite, d.h. ihre Breite in axialer Richtung der Aufwickelspule gesehen, eine in Richtung zum zweiten Zahnrad hin radial abfallende Anschrägung aufweisen, die eine erleichterte Einführung dieser Rutschkupplung, bei der die Federstege mit der zentralen Ringhülse und deren seitlichen Ansatz mit der Außenverzahnung als ein Bauteil ausgebildet sind, besonders einfach und rasch von der Außenseite des Spulenkerns der Aufwickelspule her in dessen Innendurchmesser ermöglicht. Denn dadurch wird eine leichte Konizität in Einführrichtung geschaffen, welche die Montage deutlich erleichtert.If the slip clutch in the transmission arrangement according to the invention with several spring webs extending from the central ring sleeve are provided, it is particularly advantageous if, in addition to the spring bars, there are also radial ones Support bars for additional support of the inside diameter of the Winding spool are provided, in such a way that they with their radially inner Run ends into the spring bars. The radial ones are preferred Provide support bars at their free ends with support shoes on their Surface each one of the inner surface of the core of the take-up spool have formally adapted contact surface. Is particularly advantageous it when the support shoes over their axial width, i.e. their width in the axial direction seen the take-up spool, one radially towards the second gear have a sloping slope that facilitates the introduction of this Slip clutch, in which the spring bars with the central ring sleeve and their lateral approach with the external toothing are formed as a component, especially easily and quickly from the outside of the core of the take-up reel forth in its inner diameter. Because that makes one slight taper created in the direction of insertion, which significantly facilitates assembly.

Eine vorteilhafte Weiterbildung der Erfindung besteht ferner darin, daß an den Stützschuhen auf deren axialen Enden, die auf der vom zweiten Zahnrad abgewandten Seite liegen, radial über die Stützfläche überstehende Anschläge angebracht sind, die axial gegen einen entsprechend am Innenumfang des Spulenkerns der Aufwickelspule vorgesehenen Ringabsatz anliegen und diesen Spulenkern und damit die Aufwickelspule axial relativ zur zentralen Ringhülse fixieren.An advantageous development of the invention also consists in that Support shoes on their axial ends, those on the opposite of the second gear Side, stops protruding radially beyond the support surface are axially against a corresponding on the inner circumference of the coil core of the take-up spool provided ring shoulder and this spool core and thus fix the take-up spool axially relative to the central ring sleeve.

Eine besonders bevorzugte Weiterbildung der Erfindung besteht auch darin, daß die Lagerachse mindestens an einem Abschnitt ihres Ringumfangs so ausgebildet ist, daß sie dort eine am freien axialen Ende der Lagerachse axial auslaufende, elastisch verbiegbare Zunge aufweist, die z.B. durch zwei zueinander und zur Mittelachse der Lagerachse parallele Schlitze erzeugt werden kann, die vom freien Ende der Lagerachse aus über eine gewisse Strecke axial in die Lagerachse hinein verlaufen, wobe diese elastisch federnde Zunge an ihrem freien Ende mit einem radial überstehenden Anschlag versehen ist, der im montierten Zustand gegen die radiale Endfläche der Ringhülse axial anliegt und beide Spulen verdrehbar gegenüber der Seitenwand des Gehäuses bzw. der Kassette fixiert.A particularly preferred development of the invention is also that the bearing axis is formed at least on a portion of its ring circumference is that there is an axially tapering at the free axial end of the bearing axis, has elastically bendable tongue which e.g. through two to each other and to the central axis of the bearing axis parallel slots can be generated by the free end of the bearing axis from a certain distance axially into the bearing axis run in, this resilient tongue wove its free End is provided with a radially projecting stop, which in the assembled Condition against the radial end face of the ring sleeve axially and both coils rotatably fixed relative to the side wall of the housing or the cassette.

Durch die Erfindung wird eine überraschend einfach aufgebaute, sehr kompakt bauende Getriebeanordnung geschaffen, die einen Raumbedarf in Richtung der Breite des Gehäuses bzw. der Wechselkassette benötigt, der besonders gering ist. Überdies besteht die erfindungsgemäße Anordnung aus besonders wenigen Einzelteilen, die sich leicht und rasch montieren lassen, einfach herstellbar sind und damit eine besonders preisgünstige Herstellung der Wechselkassette bzw. des gesamten Transferdispensers gestatten.The invention makes a surprisingly simple structure, very compact Building gear arrangement created that take up space in the direction of Width of the housing or the removable cassette required, which is particularly small is. In addition, the arrangement according to the invention consists of a particularly few Individual parts that can be assembled quickly and easily, are easy to manufacture and thus a particularly inexpensive manufacture of the exchangeable cassette or allow the entire transfer dispenser.

Die Erfindung wird nachfolgend anhand der Zeichnung im Prinzip beispielshalber noch näher erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht einer Wechselkassette mit einer erfindungsgemäßen Getriebeanordnung in Einbaustellung in einem nur skizziert dargestellten Gehäuse eines Transferdispensers;
  • Fig. 2 einen Schnitt längs II-II in Fig. 1;
  • Fig. 3 eine vergrößerte Schnitt-Detaildarstellung der Getriebeanordnung aus Fig. 1, und
  • Fig. 4 eine (vergrößerte) Detailschnittdarstellung der Lagerung der Vorratsspule und des Verzahnungseingriffs der Innenverzahnung mit dem die Aufwickelspule antreibenden Zahnrad.
    • The invention is explained in more detail below in principle by way of example with reference to the drawing. Show it:
  • 1 shows a side view of an interchangeable cassette with a gear arrangement according to the invention in the installed position in a housing of a transfer dispenser which is only shown in outline;
  • Fig. 2 is a section along II-II in Fig. 1;
  • Fig. 3 is an enlarged sectional detail view of the gear arrangement of Fig. 1, and
  • Fig. 4 is an (enlarged) detail sectional view of the storage of the supply reel and the meshing engagement of the internal toothing with the gear driving the take-up reel.

    • Fig. 1 zeigt in Seitenansicht eine Wechselkassette 1, die sich in eingelegtem Zustand innerhalb eines nur strichpunktiert angedeuteten Gehäuses 2 eines Transferdispensers befindet. Fig. 2 zeigt einen Schnitt gemäß II-II aus Fig. 1.Fig. 1 shows a side view of an interchangeable cassette 1, which is in the inserted State within a housing 2 indicated only by dash-dotted lines Transfer dispensers located. FIG. 2 shows a section according to II-II from FIG. 1.

    Die Wechselkassette 1 weist einen Stützaufbau auf, der auch eine Seitenwand 1' umfaßt, die im eingelegten Zustand der Wechselkassette 1 einer Seitenwand des Gehäuses 2 unmittelbar benachbart liegt. Bei einem Transferdispenser, bei dem keine Wechselkassetten eingesetzt werden, könnte die in den Fig. 1 und 2 dargestellte Seitenwand 1' der Wechselkassette 1 ihrerseits bereits von der Seitenwand des Gehäuses 2 gebildet werden. Die nachfolgenden Ausführungen stellen jedoch auf den in den Fig. 1 und 2 gezeigten Fall der Verwendung einer Wechselkassette ab, wobei der Fachmann jedoch unschwer sogleich erkennen wird, daß die dabei im folgenden noch zu schildernden konstruktiven Anordnungen gleichermaßen auch bei einem Transferdispenser eingesetzt werden können, der keine Wechselkassetten hat.The exchangeable cassette 1 has a support structure which also has a side wall 1 ' comprises the one in the inserted state of the exchangeable cassette 1 of the side wall Housing 2 is immediately adjacent. With a transfer dispenser where no interchangeable cassettes are used, the one shown in FIGS. 1 and 2 could be used Side wall 1 'of the exchangeable cassette 1 in turn already from the side wall of the housing 2 are formed. Make the following statements however, in the case of the use of an exchangeable cassette shown in FIGS. 1 and 2 from which the person skilled in the art will readily recognize, that the structural arrangements to be described in the following can also be used equally with a transfer dispenser that has no removable cassettes.

    Wie aus Fig. 1 und 2 zu entnehmen ist, umfaßt die Wechselkassette eine Aufwickelspule, die von einem Spulenkern 3 gebildet wird, auf dem ein Wickelvorrat 4 am filmbeschichteten Trägerband 5 aufgewickelt ist. Dieses Trägerband 5 verläuft vom Bandvorrat 4 der Trägerspule aus zu einem als Federsteg ausgebildeten Umlenkelement 6, gegen welches das ablaufende Band unter seiner Bandspannung anliegt und das als Ausgleich beim Auftreten von Schwankungen der Bandspannung ebenso wie als Umlenk- und Leitelement zum richtigen Einlauf des Bandes in den länglichen, im Querschnitt kleineren Gehäuseabschnitt 2a des Gehäuses 2 des Transferdispensers dient. Dieser längliche Gehäuseabschnitt 2a ist, wie die Fig. 1 und 2 zeigen, so ausgebildet, daß er vom Benutzer unschwer mit den Fingern ergriffen und das Gerät in der Form eines Füllhalters o.ä. gehalten werden kann. Dieser längliche Gehäuseabschnitt 2a setzt sich in einen verbreiterten Gehäuseabschnitt 2b zur Aufnahme der Spulen und der Rutschkupplung fort. Dieser Gehäuseabschnitt 2b hat eine nur geringfügig größere Breite B als der Gehäuseabschnitt 2a (vgl. Fig. 2), ist jedoch in seiner aus Fig. 1 entnehmbaren Weite (senkrecht zur Mittelachse des Spulenkerns 3 gesehen) deutlich größer.As can be seen from FIGS. 1 and 2, the interchangeable cassette comprises a take-up reel, which is formed by a coil core 3, on which a winding supply 4 is wound on the film-coated carrier tape 5. This carrier tape 5 runs from the tape supply 4 of the carrier spool to a spring bar Deflection element 6, against which the running tape under it Belt tension is present and this to compensate for fluctuations the belt tension as well as a deflecting and guiding element for the correct infeed of the tape in the elongated, sectionally smaller housing section 2a of the housing 2 of the transfer dispenser is used. This elongated housing section 2a is, as shown in FIGS. 1 and 2, designed so that it by the user easily gripped with the fingers and the device in the form of a fountain pen or similar can be held. This elongated housing section 2a continues a widened housing section 2b for receiving the coils and Slipping clutch on. This housing section 2b has only one greater width B than the housing section 2a (see FIG. 2), but is in its 1 can be seen (perpendicular to the central axis of the coil core 3rd seen) significantly larger.

    Das filmbeschichtete Trägerband 5 wird nach seinem Einlauf in den länglichen Gehäuseabschnitt 2a zu einem am unteren Ende der Wechselkassette angebrachten und am freien Ende des länglichen Gehäuseabschnitts 2a aus diesem nach außen vorstehendem Auftragfuß 7 geführt, dessen Breite jedoch um 90° zur Bandebene des Trägerbandes 5 an der Einlaufstelle am Umlenkelement 6 verdreht ist. Das filmbeschichtete Trägerband 5 wird daher im Bereich zwischen dem Umlenkelement 6 und der Auftragkante 8 des Auftragfußes 7 kontinuierlich ebenfalls um 90° verdreht, so daß seine Bandebene an der Andruckkante 8 des Auftragfußes 7 parallel zu dieser liegt. Das Trägerband 5 wird dabei von seitlichen Führungsvorsprüngen 9 am Auftragfuß 7 geführt, um die Auftragkante 8 herumgeführt und dann (vgl. Fig. 2) auf der anderen Seite des Auftragfußes 7 wieder über den länglichen Abschnitt 2a des Gehäuses 2 bis zu einer zweiten Umlenkstelle 10 unter gleichzeitiger weiterer Verdrehung um wiederum 90° zurückgeführt.The film-coated carrier tape 5 is after its entry into the elongated Housing section 2a attached to one at the lower end of the interchangeable cassette and at the free end of the elongate housing portion 2a thereof led outward projecting foot 7, but the width of 90 ° to the band level of the carrier band 5 at the entry point on the deflection element 6 is twisted. The film-coated carrier tape 5 is therefore in the area between the deflection element 6 and the application edge 8 of the application foot 7 continuously also rotated by 90 ° so that its band level at the pressure edge 8 of the Order foot 7 is parallel to this. The carrier tape 5 is from the side Guide projections 9 guided on the application foot 7 around the application edge 8 guided around and then (see FIG. 2) on the other side of the application foot 7 again over the elongated section 2a of the housing 2 to a second Deflection point 10 with a further rotation at 90 ° again.

    Bei der Benutzung des Gerätes wird das filmbeschichtete Trägerband 5 mit der Andruckkante 8 des Auftragfußes 7 gegen ein entsprechendes Substrat (z.B. eine Unterlage aus Papier o.ä.) angedrückt und dabei der Film (z.B. ein Klebstoffilm oder ein Cover-Up-Film) von dem Trägerband 5 auf das Substrat übertragen, während das vom Film befreite Trägerband 5 nach seiner Umlenkung an der Auftragkante 8 über die Umlenkstelle 10 zu einer Aufwickelspule zurückgeleitet wird. Diese besteht aus einem Spulenkern 11, auf den das Trägerband in Form eines Wickels 12 aufgewickelt wird. Die Fig. 1 und 2 zeigen jeweils den Zustand, bei dem der Wickelvorrat 4 auf der Aufwickelspule noch vollständig vorhanden ist, während auf dem Spulenkern 11 der Aufwickelspule noch kein Bandvorrat vorliegt (der in Fig. 2 nur informationshalber gestrichelt für den Fall einer vollen Aufwickelspule angezeigt ist). In Fig. 1 ist der Außendurchmesser des Spulenkerns 3 der Vorratsspule nur gestrichelt eingezeichnet, um eine relative Zuordnung der Lagen der Spulenkerne 3 und 11 darzustellen.When using the device, the film-coated carrier tape 5 with the Pressure edge 8 of the application foot 7 against a corresponding substrate (e.g. a base made of paper or similar is pressed on and the film (e.g. an adhesive film or a cover-up film) is transferred from the carrier tape 5 to the substrate, while the carrier tape 5 freed from the film after its deflection the application edge 8 is returned via the deflection point 10 to a take-up reel becomes. This consists of a spool core 11, on which the carrier tape in Form of a winding 12 is wound. 1 and 2 each show the Condition in which the winding supply 4 is still completely present on the take-up reel is, while on the reel core 11 of the take-up reel still no tape supply is present (which is dashed in Fig. 2 for information only in the case of one full take-up spool is displayed). In Fig. 1, the outer diameter of the Coil core 3 of the supply coil is only shown in dashed lines to a relative Representation of the positions of the coil cores 3 and 11.

    Wie aus Fig. 1 entnehmbar ist, sind die Mittelachsen der Spulenkerne 3 und 11 axial (d.h. in Längsrichtung des Gehäuses 2) zueinander versetzt.As can be seen from FIG. 1, the central axes of the coil cores 3 and 11 axially (i.e. in the longitudinal direction of the housing 2) offset from one another.

    Aus den Fig. 1 und 2 ist weiter entnehmbar, daß die Spulenkerne 3 und 11 an ihren axialen, einander zugewandten Enden jeweils mit einer radial überstehenden Bordscheibe versehen sind, wobei diese Bordscheiben von Ringscheiben 13 bzs. 14 gebildet werden: Der Spulenkern 3 der Vorratsspule weist dabei die Ring- bzw. Bordscheibe 13 und der Spulenkern 11 die Ring- bzw. Bordscheibe 14 auf, wie dies am besten aus Fig. 3 erkennbar ist, die eine vergrößerte Schnittdarstellung der Getriebeanordnung aus Fig. 2 zeigt. Die Ringscheiben 13 und 14 liegen mit ihren einander zugewandten Seiten aneinander, so daß sie sich in axialer Richtung gegeneinander abstützen. Da die nebeneinander liegenden Spulenkerne 3 und 11 jedoch mit ihren Achsen etwas axial zueinander versetzt sind, berühren sich, wie dies Fig. 3 besonders gut zeigt, die radialen Ringscheiben 13 und 14 nicht längs ihrer gesamten einander zugewandten radialen Ringflächen, sondern überdecken sich, je nach ihrer radialen Relativlage zueinander, immer nur teilweise. Die gegenseitige umlaufende Berührungsfläche ist jedoch ausreichend groß, um die erforderliche axiale Abstützung zu gewährleisten. 1 and 2 that the coil cores 3 and 11 are on their axial, mutually facing ends each with a radially projecting Flanged wheels are provided, these flanged wheels being made of annular disks 13 resp. 14 are formed: The coil core 3 of the supply coil has the Ring or flanged wheel 13 and the coil core 11 the ring or flanged wheel 14, as best seen in FIG. 3, which is an enlarged one 2 shows a sectional view of the gear arrangement from FIG. The washers 13 and 14 face each other with their sides facing each other, so that they support each other in the axial direction. Because the side by side Coil cores 3 and 11, however, with their axes offset somewhat axially to one another 3, the radial ones touch, as FIG. 3 shows particularly well Ring discs 13 and 14 do not face each other along their entire length radial ring surfaces, but overlap, depending on their radial relative position to each other, only partially. The mutual circumferential contact surface is, however, large enough to provide the required axial support guarantee.

    Von der Seitenwand 1' der Wechselkassette 1 steht, einstückig mit ihr ausgebildet, eine Lagerachse 15 vor (Fig. 3), auf der sich die gesamte Getriebeanordnung abstützt, wie dies im folgenden noch im einzelnen beschrieben wird.From the side wall 1 'of the interchangeable cassette 1 stands, integrally formed with it, a bearing axis 15 in front (Fig. 3) on which the entire gear arrangement supports, as will be described in more detail below.

    Der Spulenkern 11 der Aufwickelspule stützt sich auf der Lagerachse 15 über eine zwischengeschaltete Rutschkupplung ab, die allgemein mit dem Bezugszeichen 16 bezeichnet ist. Diese Rutschkupplung 16 umfaßt sternförmig angeordnete, radial verlaufende Stützstege 17, die an ihren radialen Enden mit Stützschuhen 18 versehen sind, wobei sich der Spulenkern 11 der Aufwickelspule mit seinem radialen Innenumfang auf der äußeren Umfangsfläche der Stützschuhe 18 abstützt. Wie die Fig. 2 und insbesonders 3 zeigen, sind am axialen Ende der Stützschuhe 18 radial etwas über die äußere Umfangsfläche der Stützschuhe 18 vorstehende Anschläge 20 angebracht, deren radial überstehende Innenfläche axial gegen einen entsprechenden am Innenumfang des Spulenkerns 11 der Aufwickelspule vorgesehenen Ringabsatz 21 anliegen und damit den Spulenkern 11 gegenüber dem Spulenkern 3 (und über diesen gegenüber der Seitenwand 1' der Wechselkassette 1) fixieren.The spool core 11 of the take-up spool is supported on the bearing axis 15 an intermediate slip clutch, generally designated by the reference numeral 16 is designated. This slip clutch 16 comprises star-shaped, radially extending support webs 17 with support shoes at their radial ends 18 are provided, with the spool core 11 of the take-up spool with its radial inner circumference on the outer circumferential surface of the support shoes 18 supports. As shown in FIGS. 2 and 3 in particular, are at the axial end of the Support shoes 18 radially somewhat over the outer circumferential surface of the support shoes 18 protruding stops 20 attached, the radially projecting inner surface axially against a corresponding one on the inner circumference of the coil core 11 Coil provided 21 abut the take-up spool and thus the spool core 11 relative to the coil core 3 (and via this relative to the side wall 1 ' the exchangeable cassette 1).

    Wie dies die Darstellung der Fig. 1 zeigt, auf die insoweit ausdrücklich verwiesen sein soll, laufen von den Stützstegen 17 Federstege 19 ab, die an ihren radialen Enden kreisförmige Endleisten 22 tragen, mit denen sie sich unter einer gewissen elastischen Vorspannung gegen den Innenumfang des Spulenkerns 11 anlegen.As shown in the illustration in FIG. 1, to which reference is expressly made is to run from the support webs 17 spring webs 19, which on their radial End wear circular end strips 22 with which they are under a certain Apply elastic pretension against the inner circumference of the coil core 11.

    Die Stützstege 17 mit ihren Stützschuhen 18 und die Federstege 19 mit ihren Endleisten 22 bilden insgesamt eine Drehaufnahme, auf der sich der Spulenkern 11 der Aufwickelspule radial abstützt und die gleichzeitig als Rutschkupplung dient. The support webs 17 with their support shoes 18 and the spring webs 19 with their End strips 22 form an overall rotary mount on which the coil core 11 of the take-up spool is supported radially and at the same time as a slip clutch serves.

    Die Stützstege 17 sind an ihrem radial innenliegenden Ende über einen Ringabschnitt 23 miteinander verbunden, wobei dieser seinerseits über Verbindungsrippen 24 mit einer zentralen Ringhülse 25 verbunden ist. Die Ringhülse 25 weist ihrerseits, wie insbesondere Fig. 3 zeigt, einen seitlichen Wellenansatz 26 auf, der sich in den Innenbereich des Spulenkerns 3 hinein erstreckt und mit einer Außenverzahnung 27 versehen ist, wie dies besonders gut aus Fig. 4 entnommen werden kann, wobei Fig. 4 einen Schnitt durch die Mittelebene IV-IV der Vorratsspule (vgl. Fig. 3) zeigt.The support webs 17 are at their radially inner end via a ring section 23 connected to each other, this in turn via connecting ribs 24 is connected to a central ring sleeve 25. The ring sleeve 25 has in turn, as shown in FIG. 3 in particular, a lateral shaft extension 26, which extends into the inner region of the coil core 3 and with a External toothing 27 is provided, as can be seen particularly well from FIG. 4 4, a section through the central plane IV-IV of the Supply spool (see. Fig. 3) shows.

    Der Spulenkern 3 der Vorratsspule ist seinerseits an seinem Innendurchmesser mit einer Innenverzahnung 28 versehen und bildet damit ein erstes innenverzahntes Zahnrad aus, das mit dem aus dem Wellenansatz 26 und der Außenverzahnung 27 gebildeten zweiten Zahnrad in Zahneingriff steht, wie dies besonders gut aus Fig. 4 entnommen werden kann.The coil core 3 of the supply coil is in turn on its inner diameter provided with an internal toothing 28 and thus forms a first internal toothing Gear from that with the shaft extension 26 and the external toothing 27 formed second gear meshes with teeth, as is particularly the case can be seen well from Fig. 4.

    Die aus den Stützstegen 17, den Stützschuhen 18, den Federstegen 19 mit deren Endleisten 22, dem Verbindungsabschnitt 23, den Verbindungsrippen 24, der Ringhülse 25 und deren seitlichem Wellenansatz 26 mit der Außenverzahnung 27 bestehende Rutschkupplung 16 ist einstückig aus Kunststoff hergestellt. Die radialen Stützflächen der Stützschuhe 18 können zylinderabschnittförmig ausgebildet sein, wie dies in den Fig. 2 und 3 gezeigt ist. Sie können aber auch mit einer geringen Konizität in Richtung auf die Seitenwand 1' der Wechselkassette 1 hin abnehmend versehen sein, was ein Einführen bei der Montage erleichtert. Diese Konizität sollte allerdings, wenn sie eingesetzt wird, nur sehr gering ausgeführt werden, damit auch im montierten Zustand noch insgesamt ein guter radialer Außenkontakt mit dem Innenumfang des Spulenkerns 11 der Aufwickelspule sichergestellt ist.The from the support bars 17, the support shoes 18, the spring bars 19 with whose end strips 22, the connecting section 23, the connecting ribs 24, the ring sleeve 25 and their lateral shaft extension 26 with the external toothing 27 existing slip clutch 16 is made in one piece from plastic. The radial support surfaces of the support shoes 18 can have a cylindrical section be formed as shown in FIGS. 2 and 3. But you can too with a slight taper in the direction of the side wall 1 'of the exchangeable cassette 1 be provided in a decreasing manner, which facilitates insertion during assembly. However, this taper should only be very slight when used be carried out so that even in the assembled state still one good radial external contact with the inner circumference of the spool core 11 of the take-up spool is ensured.

    Wie aus Fig. 3 entnommen werden kann, ist am Umfang der Lagerachse 15 eine axial verlaufende Federzunge 29 vorgesehen, die durch zwei axiale Einschnitte 30 im Körper der Lagerachse 15 gebildet wird, die sich nicht ganz über deren axiale Länge hinweg, ausgehend vom freien Ende der Lagerachse 15, erstrecken. Diese Federzunge 29 ist an ihrem axialen Ende mit einem radial überstehenden Anschlag 31 versehen, der die radiale Endfläche der Ringhülse 25 axial gegen ein unerwünschtes Abrutschen von der Lagerachse 15 haltert.As can be seen from Fig. 3, is on the circumference of the bearing axis 15 axially extending spring tongue 29 provided by two axial incisions 30 is formed in the body of the bearing axis 15, which is not entirely over their axial length extending from the free end of the bearing axis 15. This spring tongue 29 is at its axial end with a radially protruding Stop 31 provided which the radial end face of the ring sleeve 25th axially supports against undesired slipping off the bearing axis 15.

    Der Spulenkern 3 der Vorratsspule ist an seinem axialen, der Seitenwand 1' der Wechselkassette 1 zugewandten Ende mit einem radial nach innen vorstehenden Ringabsatz 32 versehen, mit dem er sich zum einen am Außenumfang des Endbereiches des Wellenansatzes 26 der Ringhülse 25 in dem Winkelbereich abstützt, in den die Innenverzahnung 28 des Spulenkerns 3 mit der Außenverzahnung 27 des Wellenansatzes 26 in kämmendem Eingriff steht. Daneben stützt sich auch noch die Bordscheibe 13, wie aus Fig. 3 (rechte Hälfte) gut ersichtlich ist, an ihrem Innendurchmmesser auf dem Außenumfang 36 eines Stufensprunges des Wellenansatzes 26 ab. Hierdurch wird beidseits der Zahnflanken der miteinander kämmenden Zähne der Außenverzahnung 27 des Wellenansatzes 26 und der Innenverzahnung 28 des Spulenkerns 3 der Vorratsspule eine Abstützung zwischen letzterem und dem Wellenansatz 26 geschaffen, wodurch sich ein nahezu idealer Kammeingriff zwischen den Zahnkränzen der Außenverzahnung 27 und der Innenverzahnung 28 erreichen läßt.The coil core 3 of the supply coil is on its axial, the side wall 1 ' Exchangeable cassette 1 facing end with a radially inwardly projecting Ring paragraph 32 provided with which it is on the one hand on the outer circumference of the End region of the shaft extension 26 of the ring sleeve 25 in the angular range supports, in which the internal toothing 28 of the coil core 3 with the external toothing 27 of the shaft extension 26 is in meshing engagement. Besides the flanged disc 13 is also supported, as can be clearly seen in FIG. 3 (right half) is, on its inner diameter on the outer circumference 36 of a step of the shaft approach 26. This will make the tooth flanks on both sides of the meshing teeth of the external teeth 27 of the shaft extension 26 and the internal toothing 28 of the coil core 3 of the supply coil a support between the latter and the shaft extension 26 is created, whereby there is an almost ideal comb engagement between the sprockets of the External teeth 27 and the inner teeth 28 can be reached.

    Auf der radial gegenüberliegenden Seite stützt sich der Spulenkern 3 der Vorratsspule mit der radialen Innenfläche eines Ringabsatzes 32 auf einem von der Seitenwand 1' der Wechselkassette 1 einstückig vorragenden bogenförmgen Stützteil 33 ab. Dieses Stützteil erstreckt sich in Umfangsrichtung über einen Winkelbereich, der etwas größer als 180° ist, und es stützt den Spulenkern 3 in radialer Richtung gegenüber der Lagerachse 15 ab. Durch das Stützteil 33 und durch den Zahneingriff der Innenverzahnung 28 mit der Außenverzahnung 7 an dem Wellenansatz 26, der seinerseits auf der gehäusefesten Lagerachse 15 verdrehbar abgestützt ist, wird insgesamt für den Spulenkern eine ausreichende Drehabstützung geschaffen. Durch die in Fig. 3 gezeigte gegenseitige Abstützung des Spulenkerns 3 der Vorratsspule und der Rutschkupplung 16 (über deren Wellenansatz 26 bzw. den Außendurchmesser der Verbindungsrippen 24) wird gewährleistet, daß die beiden miteinander kämmenden Zahnkränze 27 und 28 stets in einer idealen Lage zueinander sind.The coil core 3 of the supply coil is supported on the radially opposite side with the radial inner surface of a ring shoulder 32 on one of the Side wall 1 'of the interchangeable cassette 1 protruding arch-shaped Support part 33 from. This support part extends in the circumferential direction over a Angular range that is slightly larger than 180 °, and it supports the coil core 3 in radial direction with respect to the bearing axis 15. By the support member 33 and by the meshing of the internal toothing 28 with the external toothing 7 the shaft extension 26, which in turn on the bearing axis 15 fixed to the housing is rotatably supported, is a sufficient overall for the coil core Rotational support created. By the mutual support shown in Fig. 3 of the coil core 3 of the supply spool and the slip clutch 16 (via their Shaft extension 26 or the outer diameter of the connecting ribs 24) it is ensured that the two meshing gear rings 27 and 28 are always in an ideal position to each other.

    Die Montage des gezeigten Getriebes wird folgendermaßen vorgenommen:
    Zunächst wird der Spulenkern 3 axial auf das Stützteil 33 aufgesetzt und mit der radialen inneren Umfangsfläche seines Ringteiles 32 gegen die äußere Umfangsfläche des Stützteiles 33 zur Anlage gebracht und damit ausgerichtet. Sodann wird die Rutschkupplung 16 in den radialen Innenbereich des Spulenkerns 11 der Aufwickelspule axial eingeführt, bis die Anschläge 20 am zugeordneten Ringbund 21 des Spulenkerns 11 zur Anlage kommen. Hiernach wird die zentrale Ringhülse 25 mit ihrem Wellenansatz 26 axial auf die Lagerachse 15 soweit aufgesteckt, bis die Außenverzahnung 27 am Wellenabsatz 26 mit der Innenverzahnung 28 am Spulenkern 3 der Aufwickelspule kämmt und der radiale Halteabsatz 31 der Federzunge 29 zur axialen Fixierung der zentralen Ringhülse 25 ausgefedert ist. In dieser Stellung liegen die beiden einander zugewandten Seitenflächen der Ringscheiben 13 und 14 ebenfalls aufeinander. Damit ist die Montage der gesamten Getriebeanordnung, die aus nur einer Einbaurichtung her erfolgen kann, bereits beendet.    The assembly of the gearbox shown is carried out as follows:
    First, the coil core 3 is placed axially on the support part 33 and brought into contact with the radial inner circumferential surface of its ring part 32 against the outer circumferential surface of the support part 33 and thus aligned. The slip clutch 16 is then axially inserted into the radial inner region of the spool core 11 of the take-up spool until the stops 20 come into contact with the associated collar 21 of the spool core 11. Thereafter, the central annular sleeve 25 with its shaft extension 26 is pushed axially onto the bearing axis 15 until the external toothing 27 on the shaft shoulder 26 meshes with the inner toothing 28 on the spool core 3 of the take-up spool and the radial holding shoulder 31 of the spring tongue 29 for axially fixing the central annular sleeve 25 is rebounded. In this position, the two mutually facing side surfaces of the washers 13 and 14 are also on top of each other. The assembly of the entire gear arrangement, which can take place from only one direction of installation, has thus already ended.

    Die Getriebeanordnung weist nur wenige Teile auf, die üblicherweise alle aus geeigneten Kunststoffen bestehen: den Spulenkern 11 für die Aufwickelspule mit einstückig angeformter Ringscheibe 14, daneben die insgesamt einstückige Rutschkupplung 16 (mit den Stützstegen 17, den Stützschuhen 18, den Federstegen 19, der zentralen Ringhülse 25, dem Wellenansatz 26 und der Außenverzahnung 27) sowie als weiteres, drittes Bauteil noch den Spulenkern 3 der Aufwickelspule mit seinem Ringabsatz 32 und seiner Ringscheibe 13. Alle Teile müssen, wie geschildert, nur axial ineinander bzw. aufeinander gesteckt werden, wobei insgesamt nur drei axiale Steckvorgänge erforderlich sind.The gear arrangement has only a few parts, which usually all of them Suitable plastics consist: with the spool core 11 for the take-up spool integrally molded washer 14, next to the overall one-piece Slip clutch 16 (with the support bars 17, the support shoes 18, the spring bars 19, the central ring sleeve 25, the shaft extension 26 and the external toothing 27) and, as a further, third component, the core 3 of the take-up spool with its ring heel 32 and its washer 13. All parts , as described, only have to be inserted axially into one another or onto one another, only three axial plug-in operations are required.

    Die Wechselkassette ist ferner noch mit einer Federzunge 34 versehen, die an ihrem freien Ende eine Rastnocke 35 trägt (Fig. 1 und 2), die ihrerseits mit einer am radial äußeren Endbereich der Ringscheibe 14 der Aufwickelspule angebrachten Verzahnung in Eingriff steht und als Rücklaufsperre ausgebildet ist, so daß nur eine Aufwickel-, nicht aber eine Abwickelbewegung möglich ist. Durch die zueinander leicht versetzte Spulenanordnung wird so eine besonders raumsparende Anordnung einer Rücklaufsperre erreicht.The interchangeable cassette is further provided with a spring tongue 34 which its free end carries a locking cam 35 (Fig. 1 and 2), which in turn with a attached to the radially outer end portion of the washer 14 of the take-up spool Gearing is engaged and is designed as a backstop, so that only a winding, but not an unwinding movement is possible. By the coil arrangement, which is slightly offset from one another, thus becomes a particularly space-saving one Arrangement of a backstop reached.

    Der Außendurchmesser des Spulenkerns der Aufwickelspule ist bei dem gezeigten Ausführungsbeispiel größer als der Außendurchmesser des Spulenkerns 3 der Vorratsspule.The outside diameter of the core of the take-up spool is as shown Embodiment larger than the outside diameter of the coil core 3 the supply spool.

    Wenn das Trägerband 5 bei der Benutzung des Gerätes von der Vorratsspule abgezogen wird, wird damit der Spulenkern 3 in eine Drehbewegung versetzt. Seine Innenverzahnung 28 treibt dabei die mit ihr kämmende Außenverzahnung 27 des Zahnrads 26 an. Da der Teilkreisdurchmesser der Außenverzahnung 27 zwangsläufig kleiner als der der Innenverzahnung 28 ist, bewirkt beim Abwickeln eine Umdrehung des Spulenkerns 3 mehr als eine Umdrehung des Zahnrads 26, damit der zentralen Ringhülse 25 und über die Rutschkupplung 16 des Spulenkerns 11 der Aufwickelspule. Damit ist sichergestellt, daß selbst bei vollem Bandwickel 4 auf der Vorratsspule schon von Beginn an die Aufwickelstrecke auf dem Spulenkern 11 größer als die Länge des abgewickelten Trägerbandes 5 ist und dieses sogleich unter Spannung gesetzt wird. Sobald die gewünschte Bandspannung, d.h. der Aufbau eines entsprechenden Bremsmomentes am Spulenkern 11 der Aufwickelspule, erreicht ist, kommt es zum Durchrutschen der Rutschkupplung 16. Auf diese Weise ist jedoch immer sichergestellt, daß auch bei einem vollen Wickelkern 4 der Vorratsspule der Aufbau der gewünschten Bandspannung und die schleifenfreie Aufwicklung auf der Aufwickelspule sichergestellt ist. Mit zunehmend sich verringerndem Abwickeldurchmesser des Wickelvorrats 4 auf der Vorratsspule und entsprechend anwachsendem Wickeldurchmesser des Bandwickels 12 auf der Aufwickelspule wird der Drehzahlunterschied zwischen beiden Spulenkernen immer ausgeprägter, so daß die Rutschkupplung 16 einen entsprechend größeren Schlupf aufnehmen muß.If the carrier tape 5 from the supply reel when using the device is withdrawn, the coil core 3 is set in a rotary motion. Its internal toothing 28 drives the external toothing meshing with it 27 of the gear 26. Since the pitch circle diameter of the external toothing 27 is inevitably smaller than that of the internal toothing 28, causes when unwinding one revolution of the coil core 3 more than one revolution of the gear 26, thus the central ring sleeve 25 and via the slip clutch 16 of the coil core 11 of the take-up spool. This ensures that even at full Tape reel 4 on the supply reel from the start on the winding section the coil core 11 is greater than the length of the unwound carrier tape 5 and this is immediately put under tension. Once the one you want Belt tension, i.e. the establishment of a corresponding braking torque on Coil core 11 of the take-up spool is reached, slipping occurs Slip clutch 16. However, this always ensures that also with a full winding core 4 of the supply spool, the construction of the desired Belt tension and the loop-free winding on the take-up reel are ensured is. As the unwinding diameter of the Winding supply 4 on the supply spool and correspondingly increasing winding diameter of the tape reel 12 on the take-up reel, the speed difference between the two coil cores more and more pronounced, so that the Slip clutch 16 must absorb a correspondingly larger slip.

    Claims (16)

    1. A gear arrangement for driving the spool core (11) of a take-up spool for a transfer tape (5) through the spool core (3) of a feed spool arranged laterally of and radially offset from the take-up spool in the housing (2) of a transfer dispenser or in a refill cassette (1) for a transfer dispenser, characterized in that it comprises a first gearwheel which is driven by the feed spool and which meshes with a second gearwheel designed to drive the take-up spool, the pitch diameter of the second gearwheel being smaller than that of the first gearwheel, a slipping clutch (16) being provided between the spool core (11) of one of the two spools and the associated gearwheel (27) and a radially projecting annular disc (13,14) being disposed on each spool core (3,11) and its side facing the other spool, the two spool cores (3,11) bearing partly against one another through their mutually opposite annular discs (13,14); in that, in addition, the first gearwheel is formed by inner teeth (28) on the spool core (3) of the feed spool in the interior of which the second gearwheel is disposed; in that the take-up spool is mounted for rotation on a spindle (15) integral with the housing or cassette through a central annular sleeve (25) and in that the annular sleeve (25) is provided with a lateral extension (26) which carries the second, externally toothed gearwheel (27) meshing with the first gearwheel.
    2. A gear arrangement as claimed in claim 1, characterized in that the slipping clutch (16) is arranged between the spool core (11) of the take-up spool and the spindle (15) and surrounds the central annular sleeve (25).
    3. A gear arrangement as claimed in claim 2, characterized in that the inner teeth (28) are integrally formed on the inner circumference of the spool core (3) of the feed spool.
    4. A gear arrangement as claimed in any of claims 1 to 3, characterized in that the diameter of the spool core (11) of the take-up spool is at least as large as that of the spool core (3) of the feed spool.
    5. A gear arrangement as claimed in claim 4, characterized in that the external diameters of the annular discs (13,14) of the two spool cores (3,11) are the same.
    6. A gear arrangement as claimed in any of claims 2 to 5, characterized in that the slipping clutch (16) comprises several spring arms (19) which radiate from the central annular sleeve (25) and which bear under bias against the internal diameter of the spool core (11) of the take-up spool and support the spool core.
    7. A gear arrangement as claimed in any of claims 1 to 6, characterized in that the spool core (3) of the feed spool is axially supported at its axial end face remote from the annular disc (13) by the housing (2) or the cassette (1) and, around its inner circumference, is supported firmly in the housing or cassette by one or more support points (33) which is/are offset from the point of engagement of the inner teeth (28) with the second gearwheel (27).
    8. A gear arrangement as claimed in claim 7, characterized in that the spool core of the feed spool is supported radially of its axis of rotation at a point radially opposite the point of engagement of its inner teeth (28) with the second gearwheel (27) by a support element (33) fixed to the housing or the cassette.
    9. A gear arrangement as claimed in claim 8, characterized in that the support element is in the form of an arcuate support element (33) which is fixed to the housing or the cassette and extends over a certain angle.
    10. A gear arrangement as claimed in claim 9, characterized in that the arcuate support element (33) radially supports the spool core (3) of the feed spool over an angle of about 180°.
    11. A gear arrangement as claimed in any of claims 8 to 10, characterized in that the support element (33) is integrally formed with a side wall (11) of the housing or the cassette.
    12. A gear arrangement as claimed in any of claims 6 to 11, characterized in that, in addition to the spring arms (19), the slipping clutch (16) also comprises radial support flanges (17) for supporting the internal diameter of the take-up spool with which the spring arms (19) merge at their radially inner ends.
    13. A gear arrangement as claimed in claim 12, characterized in that the radial support flanges (17) are provided at their free ends with support shoes (18) which are provided on their surface with a bearing face adapted to the inner face of the spool core (11) of the take-up spool.
    14. A gear arrangement as claimed in claim 13, characterized in that stops (20) projecting radially beyond the support shoes (18) are arranged on the support shoes (18) at the axial ends thereof which lie on the sides remote from the second gearwheel, said stops bearing axially against an annular shoulder (21) correspondingly provided on the inner circumference of the spool core (11) of the take-up spool.
    15. A gear arrangement as claimed in claim 14, characterized in that the slipping clutch (16), its lateral extension (26) and the second gearwheel (27) are made in one piece of plastic.
    16. A gear arrangement as claimed in any of the preceding claims, characterized in that the spindle (15) integral with the housing or the cassette is designed over at least part of its circumference as a tongue (29) which extends axially to the free axial end of the spindle (15) and which is provided at its free end with a radially projecting stop (31) which, in the assembled state, bears axially against the radial end face of the annular sleeve (25) and fixes both spools for rotation relative to the housing (2) or the cassette (1).
    EP97908161A 1996-03-11 1997-03-03 Drive arrangement for the core of a winding spool for a transfer strip of a transfer dispenser Expired - Lifetime EP0886621B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19609533 1996-03-11
    DE19609533A DE19609533C1 (en) 1996-03-11 1996-03-11 Winding-spool drive mechanism for transfer tape
    PCT/EP1997/001052 WO1997033824A1 (en) 1996-03-11 1997-03-03 Drive arrangement for the core of a winding spool for a transfer strip of a transfer dispenser

    Publications (2)

    Publication Number Publication Date
    EP0886621A1 EP0886621A1 (en) 1998-12-30
    EP0886621B1 true EP0886621B1 (en) 2000-05-24

    Family

    ID=7787957

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97908161A Expired - Lifetime EP0886621B1 (en) 1996-03-11 1997-03-03 Drive arrangement for the core of a winding spool for a transfer strip of a transfer dispenser

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    US (1) US6079660A (en)
    EP (1) EP0886621B1 (en)
    JP (1) JP2000506109A (en)
    KR (1) KR100458175B1 (en)
    CN (1) CN1071282C (en)
    AT (1) ATE193272T1 (en)
    BR (1) BR9708020A (en)
    CA (1) CA2248776A1 (en)
    DE (2) DE19609533C1 (en)
    DK (1) DK0886621T3 (en)
    ES (1) ES2146462T3 (en)
    GR (1) GR3033673T3 (en)
    NO (1) NO311250B1 (en)
    PL (1) PL182980B1 (en)
    PT (1) PT886621E (en)
    RU (1) RU2181337C2 (en)
    TR (1) TR199801796T2 (en)
    TW (1) TW370510B (en)
    WO (1) WO1997033824A1 (en)
    ZA (1) ZA972057B (en)

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    Publication number Publication date
    NO984122L (en) 1998-11-09
    NO311250B1 (en) 2001-11-05
    JP2000506109A (en) 2000-05-23
    ES2146462T3 (en) 2000-08-01
    PL182980B1 (en) 2002-05-31
    BR9708020A (en) 1999-07-27
    CN1071282C (en) 2001-09-19
    TW370510B (en) 1999-09-21
    PT886621E (en) 2000-10-31
    ATE193272T1 (en) 2000-06-15
    KR100458175B1 (en) 2006-01-27
    GR3033673T3 (en) 2000-10-31
    WO1997033824A1 (en) 1997-09-18
    KR19990087677A (en) 1999-12-27
    CN1211959A (en) 1999-03-24
    NO984122D0 (en) 1998-09-07
    PL328604A1 (en) 1999-02-01
    DK0886621T3 (en) 2000-10-09
    EP0886621A1 (en) 1998-12-30
    RU2181337C2 (en) 2002-04-20
    DE19609533C1 (en) 1997-02-27
    DE59701760D1 (en) 2000-06-29
    CA2248776A1 (en) 1997-09-18
    US6079660A (en) 2000-06-27
    TR199801796T2 (en) 1998-12-21
    ZA972057B (en) 1997-09-11

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