JP2013010623A - Film payout and take-up method for thermal transfer printer and film payout and take-up winding core mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save core setting man-hours when setting a core around which an ink ribbon or a transfer film is wound to a rotary drive shaft of a thermal transfer printer by smoothly engaging a core fitting recess with a core fitting protrusion in a short time without repeating attachment/detachment of the core to/from the rotary drive shaft.SOLUTION: An embodiment of the present invention comprises: winding cores 11, 12 having core engagement recesses 11a, 12a for winding a web roll-shaped film to be detachably mounted in a thermal transfer printer; one or a plurality of rotary shafts 31 rotatably supporting cylindrical both ends of the winding core; a pair of disk-shaped flanges 32 facing both ends of the rotary shaft; a flanged biasing part E elastically biasing the flange of the pair flanges at the other end in a flange direction of the one-end; and a core fitting protrusion 33 protruding from the flange surface of the flange at one end side of the core or at both end sides. The rotary drive shaft 31 is idly rotated, and the protrusion 33 and the recesses 11a, 12a are detachably fitted (engaged) and mounted while aligning rotation phase positions.

Description

  TECHNICAL FIELD The present invention relates to a thermal transfer printer photosensitive material winding method and apparatus for facilitating loading of a web-like transfer ribbon or transfer film wound around an unwinding core for a thermal transfer printer.

  As a printing technology related to a conventional thermal transfer printer, as described in Patent Document 1, an ink ribbon (recording ribbon) is introduced between the platen and the thermal head, and a transfer object is introduced between the platen and the ink ribbon. Then, the heated dot-like colored layer of the ink ribbon is transferred as a printing layer onto the surface of the transfer object by scanning the transfer object in a dot (dot) shape via the ink ribbon with the thermal head. There is a thermal transfer printing method.

  Further, as described in Patent Document 2, an intermediate transfer film and an ink ribbon (recording ribbon) are introduced between the platen and the thermal head, and dots (dots) are formed on the intermediate transfer film via the ink ribbon by the thermal head. ) To transfer the heated dot-like colored layer of the ink ribbon to the intermediate transfer film surface as an intermediate print layer, and then transfer the intermediate print layer transferred from the intermediate transfer film to the surface of the transfer object There is a thermal transfer printing method for transferring as a printing layer.

  FIG. 7 is a schematic side view of a general thermal transfer printer, in which a primary transfer portion A including a thermal head 3 disposed in proximity to the platen roller 4 is provided, and between the platen roller 4 and the thermal head 3, A web roll-shaped transfer ink ribbon 1 wound at least at both ends on a cylindrical unwinding core 11 is placed on the thermal head 3 side, and a transfer film 2 wound on a tubular unwinding core 12 is placed on a platen. On the roller 4 side, the ink ribbon 1 and the transfer film 2 are overlapped and unwound and supplied to the primary transfer portion A.

  While introducing the ink ribbon 1 and the transfer film 2 that are supplied by being unrolled from the unwinding cores 11 and 12 to the primary transfer portion A, the thermal head 3 outputs and scans a dot-like thermal image, The colored layer 1a on the back surface of the ink ribbon 1 facing the thermal head 3 is thermally transferred to the transfer film 2 in the form of dots to form a transferred image.

  Subsequently, the transfer film 2 on which the transfer image is formed and the transfer sheet 5 such as a predetermined film or paper supplied from the transfer sheet supply unit C are overlapped and introduced into the secondary transfer unit B. Then, it is introduced between the thermal transfer roll 6 and the pressure roll 6a of the secondary transfer portion B, and the transfer image of the transfer film 2 is printed by transferring it as an image to a transfer sheet 5 (film, paper, etc.). Is. The printed transfer sheet 5 is discharged from the secondary transfer portion B at the discharge portion D, and the ink ribbon 1 and the transfer film 2 that have finished printing the image are respectively transferred to the cylindrical winding cores 21 and 22 ( Winded up (via outfeed roll).

  As shown in the front view of FIG. 8A, the thermal transfer printer includes cylindrical unwinding cores 11 and 12 (and a winding core 21) for winding a web roll-shaped ink ribbon 1 and a transfer film 2. 22) a pair of driving rotating shafts 31 (or one in the thrust direction) opposed to the thrust direction for rotatably supporting both ends of the cylindrical shape, and a pair of disk-shaped facing the both ends of the rotating shaft 31. A flange 32, a biasing portion that elastically biases the flange 32 at the other end of the pair of disk-shaped flanges 32 in the direction of the flange 32 (arrow direction) at one end, and one end of the core The core fitting convex part 33 which protrudes from the collar surface of the collar part 32 of the part (or both ends) side is provided.

  The cylindrical cores of the unwinding cores 11 and 12 (and the winding cores 21 and 22) are fitted (engaged) with the core fitting convex portion 33 to prevent the core from slipping. Joint recesses 11a and 12a (and fitting recesses 21a and 22a) are provided.

  When the core is mounted (set) on the thermal transfer printer, as shown in FIG. 8A, the unwinding cores 11 and 12 (and the winding cores 21 and 22) of the ink ribbon 1 and the transfer film 2, respectively. Each of the cylindrical ends at both ends is fitted with a pair of opposing drive rotation shafts 31 of the thermal transfer printer to support the core, and then the other end of the core is attached with a biasing portion of the drive rotation shaft 31. While pressing the flange 32 toward the flange 32 at one end, the core fitting recesses 11 a and 12 a (and the fitting recesses 21 a and 22 a) are formed on the core fitting protrusion 33 of the drive rotating shaft 31. As shown in FIG. 8 (b), the rotational phase position is aligned, and the core fitting concave portion and the core fitting convex portion are fitted (engaged) and mounted, and the core is idled with respect to the drive rotating shaft 31. It is made to rotate without doing.

  However, when the core is set on the drive rotation shaft 31 of the thermal transfer printer, as shown in FIG. 8B, it is necessary to securely mesh the core fitting concave portion with the core fitting convex portion. As shown in (c), when the rotary shaft 31 is driven and rotated in a state where the core fitting concave portion of the core and the core fitting convex portion of the rotary shaft are not engaged with each other, the core is in a normal position with respect to the rotary shaft 31. As a result, the core does not rotate normally, causing problems such as skewing of the film being wound, film winding misalignment, film edge damage, and effects on the thermal transfer printer main body. there's a possibility that.

  Therefore, when setting the core on the drive rotation shaft of the thermal transfer printer, in order to ensure that the core can be set on the drive rotation shaft, the attachment and detachment of the core to and from the drive rotation shaft is repeated several times so that the unevenness is engaged. You must be careful and set carefully. This required time and effort.

JP-A-6-238828 JP 2002-113915 A

  An object of the present invention is to set a core fitting concave portion and a core fitting convex portion with respect to a driving rotary shaft when setting a core wound with an ink ribbon or a transfer film on a driving rotary shaft of a thermal transfer printer. The purpose is to save time and labor required for setting the core by allowing the cores to be smoothly meshed in a short time without repeatedly attaching and detaching the core.

The invention according to claim 1 of the present invention rotatably supports a winding core for winding a web roll-shaped film that is detachably mounted in a thermal transfer printer, and both cylindrical end portions of the winding core. One or two or more drive rotation shafts, a pair of disk-shaped flanges facing both ends of the drive rotation shaft, and the other edge of the pair of flanges is the edge direction of one end. A core urging portion that elastically urges the core, and a core fitting convex portion that protrudes from one end portion of the core or the flange surface of the heel portion on both ends, and the cylindrical one end portion of the core includes: A core fitting recess for preventing the core from slipping by fitting (engaging) with the core fitting convex portion of the drive rotating shaft is provided, and the drive rotating shaft is fitted into the cylindrical shape at each end of the core. Support the core, and rotate the drive rotation shaft when the other end of the core is pressed in the direction of the flange of the one end by the flange with the biasing portion of the drive rotation shaft. The film unwinding and winding of the thermal transfer printer, wherein the core fitting convex part and the core fitting concave part are detachably fitted (engaged) with their rotational phase positions aligned, and unwound and wound. Is the method.

  According to a second aspect of the present invention, in the film unwinding and winding method of the thermal transfer printer according to the first aspect, the web roll film is either an ink ribbon or a transfer film, or an ink ribbon and a transfer film. This is a film unwinding and winding method of a thermal transfer printer that is a film.

  According to a third aspect of the present invention, in the film unwinding and winding method of the thermal transfer printer according to the first or second aspect, the winding core for winding the web roll-shaped film includes an unwinding core and a winding core. This is a film unwinding and winding method for a thermal transfer printer that is one or both of the take-up cores.

  According to a fourth aspect of the present invention, there is provided a winding core for winding a web roll film such as an ink ribbon or a transfer film that is detachably mounted in a thermal transfer printer, and both cylindrical ends of the winding core. A drive rotary shaft that rotatably supports the portion, a pair of disk-shaped flanges facing both ends of the drive rotation shaft, and a flange on the other end of the pair of flanges. A core urging portion that elastically urges in the direction, and a core fitting convex portion that protrudes from one end portion of the core or the flange surface of the flange portion on both ends, and the cylindrical one end portion of the core includes A core fitting concave portion that is fitted (engaged) with the core fitting convex portion of the drive rotation shaft to prevent the core from slipping, and the core fitting convex portion and the core fitting concave portion are arranged at a rotational phase position thereof. The film unwinding / winding winding core of the thermal transfer printer is characterized in that it is detachably fitted (engaged) and aligned. A mounting device.

  The invention according to claim 5 of the present invention is the film unwinding and winding core mounting device of the thermal transfer printer according to claim 4, wherein the web roll film is either an ink ribbon or a transfer film, or It is a film unwinding and winding core mounting device of a thermal transfer printer which is an ink ribbon and a transfer film.

  The invention according to claim 6 of the present invention is the film unwinding and winding core mounting device for the thermal transfer printer according to claim 5, wherein the winding core for winding the web roll film is an unwinding core. A film unwinding and winding core mounting device for a thermal transfer printer according to claim 4 or 5, which is one or both of a winding core and a winding core.

  According to the film unwinding and winding method method of the thermal transfer printer and the film unwinding / winding winding core mounting device of the thermal transfer printer according to the present invention, the film is provided on a pair (one or both) of the opposite facing flanges of the drive rotating shaft. Since the core fitting convex part is urged by the spring in the direction of the opposite collar part, it is formed on the end faces (one end face or both end faces) of both ends of the wound core whose rotational phase positions are aligned. It is pushed into the core fitting recess by the urging force of the spring, so that the concave and convex portions are easily fitted, and the winding core is easily set on the drive rotation shaft of the thermal transfer printer.

  In addition, when the rotational phase positions of the fitting concave portion of the winding core and the fitting convex portion of the drive rotating shaft are not aligned with each other or are in a position where they interfere with each other before fitting, the winding is wound around the driving rotating shaft. Even if the winding core is supported, the urging force that pushes back the end surface of the winding core by the spring force acts on the fitting convex part of the driving rotary shaft, so either the winding core or the driving rotary shaft Are slightly rotated and moved to phase positions (regular positions) that are aligned with each other, thereby making it possible to fit the concave and convex portions.

In addition, when the rotational phase position of the fitting concave part of the winding core and the fitting convex part of the driving rotary shaft are not aligned with each other or in a state where they interfere with each other before fitting, the driving rotary shaft is rotated. Then, the drive rotating shaft begins to idle with respect to the winding core while the fitting convex portion presses the end surface of the winding core by the spring force, and the driving rotating shaft automatically engages with the winding convex portion. The mating convex part is indented into the mating concave part at that time, and the concave and convex parts engage with each other to be in the mating state, and the power of the drive rotating shaft is applied to the winding core. It is transmitted, and it becomes easy to fit the concave and convex, and it becomes easy to set the winding core on the drive rotation shaft of the thermal transfer printer.

  In this way, in the installation of a winding core for winding a film such as an ink ribbon or a transfer film in a thermal transfer printer, the troublesomeness of taking care of the mounting operation is reduced, and the setting can be easily performed even with an unfamiliar operation. Without requiring an operation to firmly align the fitting recess of the winding core with the fitting projection of the drive rotating shaft, it is possible to mount by concavity and convexity engagement, and a web roll film in a thermal transfer printer due to incorrect mounting of the winding core It is possible to prevent troubles occurring during unwinding, winding and feeding, and loss of printing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall front view of a winding core mounting device for explaining a state in which a winding core is mounted on a film unwinding and winding core mounting device of the thermal transfer printer of the present invention. The whole front view of the winding core mounting apparatus before winding core mounting explaining the film unwinding winding method of the thermal transfer printer of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The whole front view of the winding core mounting apparatus after winding core mounting explaining the film unwinding winding method of the thermal transfer printer of this invention. The front view of the right side part of the winding core mounting apparatus explaining the film unwinding winding method of the thermal transfer printer of this invention. The front view of the right side part of the winding core mounting apparatus explaining the film unwinding winding method of the thermal transfer printer of this invention. The front view of the right side part of the winding core mounting apparatus explaining the film unwinding winding method of the thermal transfer printer of this invention. The side view of the thermal transfer printer explaining the film unwinding winding method and winding core mounting apparatus of the conventional thermal transfer printer. (A)-(c) is a front view of the right part of winding core mounting | wearing explaining the mounting method of the film unwinding winding winding core of the conventional thermal transfer printer.

The film unwinding and winding core mounting device of the thermal transfer printer of the present invention includes the film unwinding and winding core mounting device of the thermal transfer printer of the present invention, and a state in which the winding core is mounted on the winding core mounting device. As shown in the entire front view of the winding core mounting apparatus, the winding for winding a web roll film such as an ink ribbon or a transfer film that is detachably mounted in a thermal transfer printer (see FIG. 7) A pair of thrust directions (axial direction) which rotatably supports the cylindrical ends of the cores 11 and 12 (21 and 22) and the winding cores (the unwinding cores 11 and 12 and the winding cores 21 and 22). ) And the drive rotation shafts 31 and 31 facing each other. Note that at least one of the pair of opposed rotating shafts 31, 31 is a drive rotating shaft 31 that is driven and rotated by a rotation driving source (electric motor or the like), and the other is a free rotating shaft 31. Good.
Both opposing rotating shafts 31, 31 are rotatably supported by bearings on left and right body frames F, F of the winding core mounting device body of the thermal transfer printer.

  As shown in FIG. 1, the drive rotating shaft 31 is provided with a pair of opposed plate-like flange portions 32, 32 on each of a pair of opposed rotary shafts 31, 31, and the pair of plate-like flange portions. 32, the collar 32 at one end is a fixed collar, and the collar 32 at the other end is a movable collar 32 movable in the thrust direction along the rotation shaft 31. The movable collar 32 has a core biasing section E (plunger mechanism) having a predetermined stroke amount that resiliently biases in the direction of the stationary collar 32 at one end (the direction of the straight arrow in FIG. 1). The flange portion 32 at one end or the other end portion or the flange portions 32 at both end portions are provided with a core fitting convex portion 33 protruding from the flange surface of the flange portion 32.

  As shown in FIG. 1, the core fitting convex portions 33 provided on both or one of the fixed collar portion 32 and the movable collar portion 32 are respectively opposed to the collar portions 32 (and strokes as necessary). The auxiliary plate 32-1) provided to obtain the length is fitted into a housing 32-4 provided with a hole in the opposite direction of the flange 32, and the tip of the core fitting convex portion 33 is connected to the flange 32 surface. A slider 33-1 (stopper having a diameter larger than the housing inner diameter) that slides in the housing 32-4 provided at the end of the core fitting convex portion 33 so as to protrude more constantly is an elastic body (extension spring). It is energized at 33-2.

  As shown in FIG. 1, the core urging portion E is integrally attached and fixed to the left end portion of the drive rotary shaft 31, and includes a housing 31-1 and a space guide portion provided inside the housing 31-1. 31-2.

  As shown in FIG. 1, the movable body 32 on the core urging portion E side is integrally attached with a cylindrical body 32-2 fitted so as to be slidable in the thrust direction along the rotation shaft 31. A fixed spline groove portion 32-5 (or spline convex portion) is provided on the outer periphery of the cylindrical body 32-2 in the direction of the rotation shaft 31, and the spline groove portion 32-5 (or spline convex portion) is provided. ) And a spline protrusion (or groove) provided in the direction of the rotation shaft 31 on the wall 31-3 of the housing 31-1.

  A slider 32-3 (movable hook stopper) is attached to the end of the cylindrical body 32-2 that moves along the rotary shaft 31, and the slider 32-3 is connected to the housing 31-1. It inserts in the space guide part 31-2 from a cylindrical body insertion port.

  Between the housing 31-1 and the movable hook 32, an elastic body 31-4 (spring) that biases the movable hook 32 in the direction of the other opposite hook 32 is attached, and a plunger mechanism Is configured.

  The slider 32-3 provided at the end of the cylindrical body 32-2 is guided by the space guide portion 31-2 of the housing 31-1, and the movable collar portion 32 is rotated integrally with the cylindrical body 32-2. A linear sliding movement of a predetermined stroke amount in the thrust direction along the line 31 is possible.

  As shown in FIG. 1, the pair of opposed drive rotary shafts 31 may have the same shaft diameter in the opposite inner direction on the inner side of the flange portions 32, 32. The taper-shaped rotating shaft 31a may be gradually reduced in diameter. In addition, either one of the pair of opposed drive rotary shafts 31 may be driven and rotated by power, the other may be freely rotated, or both may be driven and rotated by power. Further, the fixed flange portion 32 of the core urging portion E facing the movable flange portion 32 has an axial length within the stroke amount of the core urging portion E.

As shown in FIG. 1, the winding cores 11 and 12 (21, 22) have either one end side or both end sides, or one end side and both end side flange portions 32 on the flange surface 32a. The core fitting convex part 33 (plunger mechanism) for preventing idling, which protrudes from and can be immersed. The fitting protrusion 33 has a slider 33-1 provided at the end thereof inserted into a space guide part 32-4 provided inside the flange 32 via an elastic body 33-2 (spring). The fitting protrusion 33 is moved in a direction linearly sliding in the thrust direction, with the slider 33-1 being guided by the space guide portion 32-4, and in the opposite inner surface direction of the pair of flange portions 32 facing each other. The elastic body 33-2 is always urged to project.

  The cylindrical rotating end of the winding cores 11, 12, (21, 22) and either one of the ends 11a, 12a, (21a, 22a), or one end and both ends 11a, 12a are provided with the drive rotary shaft. Core fitting concave portions 11a and 12a (21a and 22a) for preventing the idling of the wound core by fitting (or engaging) the 31 core fitting convex portions 33 are provided.

  In order to mount and support the winding cores 11, 12, (21, 22) on the drive rotating shaft 31, as shown in FIG. 1, the elasticity toward the direction of the fixed collar portion 32 at the right end (right arrow direction). The movable flange 32 at the left end that is urged by the extension spring 31-4 is moved in the direction of the left arrow (in the direction of the core urging portion E) against the extension spring 31-4. The cylindrical portions 11b, 12b, (21b, 22b) are pressed to widen the width between the movable flange portion 32 and the fixed flange portion 32, so that both ends 11a, 12a, (21a, After a pair of drive rotating shafts 31 and 31 facing in the thrust direction are fitted in the cylindrical shape of 22a), the fitting convex portion 33 on the flange portion 32 is replaced with the cylindrical portions 11b, 12b, (21b, 22b). Are fitted and supported by the core fitting recesses 11a and 12a (21a and 22a).

  FIG. 2 is an overall front view of the winding core mounting device illustrating a state before the winding core is mounted for explaining the film unwinding and winding method of the thermal transfer printer of the present invention, and the direction of the fixing hook 32 at the right end. The movable hook 32 at the left end, which is biased by the extension spring 31-4 (in the direction of the right arrow), has a movable hook stopper 32-3 integral with the movable hook 32 on the right in the housing 31-2. The state which has stopped at the right end by abutting against the inner wall surface is shown.

  FIG. 3 is an overall front view of the winding core mounting apparatus illustrating a state after mounting the winding core for explaining the film unwinding and winding method of the thermal transfer printer according to the present invention, and the direction of the fixing hook 32 at the right end. The movable hook 32 at the left end of the stopped state is urged by the extension spring 31-4 (in the direction of the right arrow) into the cylindrical portions 11b, 12b, (21b, 22b) at one end of the winding core. Then, it is pressed against the extension spring 31-4 in the direction of the left arrow (the direction of the core urging portion E) to widen the width between the opposed portions of the movable flange portion 32 and the fixed flange portion 32, and both ends of the wound core. 11a, 12a, (21a, 22a) are fitted with a pair of drive rotary shafts 31, 31 facing each other in the thrust direction, and the fitting convex portion 33 on the flange portion 32 is connected to the winding cores 11, 12 , 21 and 22 in the cylindrical portions 11b and 12b, (21b and 22b), the core fitting recess 11a, 2a (21a, 22a) in fitted mounting support.

  FIG. 4 is an enlarged front view of another example of the free-rotating fixing collar 32 at the right end of the winding core mounting device for explaining the film unwinding and winding method of the thermal transfer printer of the present invention. A free rotating shaft 31 that is supported by a main body frame F of the mounting device so as to be freely rotatable, a fixing collar portion 32 and an auxiliary plate 32-1 that are attached and fixed to the rotating shaft 31, and a hole portion of the fixing collar portion 32 32-4, a core fitting convex portion 33 to be inserted into the elastic member 31-4, an extension elastic body 31-4 that biases the distal end portion of the fitting convex portion 33 in the direction of the movable hook 32, and the elastic body 31-4. It is comprised from the auxiliary plate 32-1 which attached. The cylindrical surface of the rotating shaft 31 that protrudes from the surface of the fixed hook 32 on the side of the opposed movable hook 32 that fixes and fixes the fixed hook 32 may be a tapered surface 31a.

Next, the film unwinding and winding method of the thermal transfer printer of the present invention will be described. In the winding core mounting device of the thermal transfer printer shown in FIG. 2 before mounting the winding core, the direction of the fixing hook 32 (the direction of the right arrow) ) And the rotating shaft 31 of the movable flange 32 on the left end side protruding so as to protrude into the cylindrical portions 11b, 12b, (21b, 22b) at one end of the wound core 11 or 12 or 21 or 22. While being inserted, the movable hook 32 is pressed in the direction of the left arrow (the direction of the core urging portion E) at the one end of the winding core, and as shown in FIG. A pair of drive rotation shafts that expand the width between the opposed portions 32 and face each other in the thrust direction within the cylindrical ends 11a, 12a (21a, 22a) of the winding core 11 or 12 or 21 or 22, respectively. 31 and 31 are inserted.

  5A shows a state before the winding core end of the winding core mounting device of the thermal transfer printer in FIG. 2 on the side of the fixing collar 32 is inserted, and FIG. 5B shows the state shown in FIG. Winding cores 11, 12, (21, 22) are connected to a pair of opposed drive rotary shafts 31, 31 between a pair of opposed fixed hook part 32 and movable hook part 32 of the winding core mounting device of the thermal transfer printer. This shows a state in which the drive rotating shaft 31 on the side of the fixed flange 32 is inserted into the cylindrical end of the winding core after being inserted into the cylindrical ends of the cylindrical both ends 11a, 12a (21a, 22a).

  At the time when the drive rotary shafts 31 and 31 are fitted in the cylindrical ends of the cylindrical end portions 11a and 12a (21a and 22a) of the wound core 11 or 12 or 21 or 22, respectively, FIG. As shown in FIG. 5, the fitting convex portion 33 provided in one of the opposing movable collar portions 32, or the fitting convex portion 33 provided in the other fixed collar portion 32 as shown in FIG. 5B, or both are provided. In the present invention, the fitting convex portion 33 does not necessarily have to be fitted into the fitting concave portion 11a (12a, 21a, 22a) formed at the end of the winding core.

  Subsequently, after fitting the pair of opposed drive rotating shafts 31 and 31 into the cylindrical shape of the cylindrical both ends of the winding core, the fitting convex portion 33 is wound as shown in FIG. In a state where it is not fitted in the fitting recess 11a (12a, 21a, 22a) at the end of the turning core, the drive operation of the rotating shafts 31, 31 of the winding core mounting device is turned on to start the driving operation (inching, The rotating shaft 31, the rotating collar 32, and the fitting convex portion 33 that are driven to rotate slip by slipping with respect to the winding core, and automatically engage with the fitting convex portion during the idling. 33 and the rotation phase position of the fitting recess 11a (12a, 21a, 22a) at the winding core end portion fluctuates, and the fitting projection 33 and the fitting recess 11a (12a, 21a at the winding core end portion) are eventually changed. , 22a) and the rotation phase position coincides with each other, and the fitting convex portion 33 is in the fitting concave portion of the winding core end portion. Fitted and engaged with the mounting completed. As a result, the winding core is free from idling and rotates following the rotational speed of the drive rotary shaft 31.

A ... primary transfer part B ... secondary transfer part C ... transferred sheet supply part D ... discharge part E ... core urging part F ... winding core mounting device body frame 1 ... ink ribbon 1a ... colored layer 2 ... transfer film DESCRIPTION OF SYMBOLS 3 ... Thermal head 4 ... Platen roller 5 ... Transfer sheet 6 ... Thermal transfer roll 6a ... Pressure roll 11, 12 ... Unwinding core 11a, 12a ... Fitting recessed part 11b, 12b ... Winding core end cylindrical part 21, 22 ... winding core 21a, 22a ... fitting recess 21b, 22b ... winding core end cylindrical part 31 ... driving rotary shaft 31a ... tapered rotary shaft 31-1 ... housing 31-2 ... space guide part 31-4 ( (Extension spring) ... elastic body 32 ... collar (fixed collar, movable collar)
32-1 ... Auxiliary plate 32-2 ... Cylinder 32-3 ... Slider 32-4 ... Housing 32-5 ... Housing wall surface 33 ... Core fitting projection 33-1 ... Slider 33-2 ... Elastic body (Extension spring)

Claims (6)

  A winding core for winding a web roll-like film that is detachably mounted in the thermal transfer printer, and one or more drive rotating shafts that rotatably support both cylindrical ends of the winding core; A pair of disc-shaped flanges facing both ends of the drive rotation shaft, and a flange biasing section that elastically biases the flange of the other end of the pair of flanges toward the flange of one end. And a core fitting convex part protruding from the flange surface of the collar part at one end part or both end parts of the core, and at the cylindrical one end part of the core, the core fitting convex part of the drive rotating shaft A core fitting recess for fitting (engaging) to prevent the core from idling is provided, and the drive rotating shaft is fitted into a cylindrical shape at each end of the core to support the core, and the other end of the core Rotate the drive rotation shaft when it is pressed in the direction of the flange at one end by the flange with the biasing portion of the drive rotation shaft, and the core fitting convex part and the core fitting Part its rotational phase position aligned detachably fitted (engaged) equipped with a film unwinding winding method of the thermal transfer printer, wherein a winding unwinding.   2. The film unwinding and winding method for a thermal transfer printer according to claim 1, wherein the web roll-shaped film is either an ink ribbon or a transfer film, or an ink ribbon and a transfer film.   The film winding and winding method for a thermal transfer printer according to claim 1 or 2, wherein a winding core for winding the web roll film is one or both of a winding core and a winding core.   A winding core for winding a web roll-shaped film such as an ink ribbon or a transfer film that is detachably mounted in the thermal transfer printer, and a drive rotation shaft for rotatably supporting both cylindrical ends of the winding core; A pair of disk-shaped flanges facing both ends of the drive rotation shaft, and a core biasing that elastically biases the flange of the other end of the pair of flanges in the direction of the flange of one end And a core fitting convex portion projecting from the collar surface of the collar portion at one end portion or both end portions of the core, and the core fitting convex portion of the drive rotating shaft at the cylindrical one end portion of the core A core fitting recess that prevents the core from idling by being fitted (engaged) with the core fitting convex portion and the core fitting concave portion so that the rotational phase position of the core fitting convex portion and the core fitting concave portion are aligned. F) A film unwinding / winding / winding core mounting device for a thermal transfer printer, characterized by being mounted.   5. The film unwinding / winding / winding core mounting device for a thermal transfer printer according to claim 4, wherein the web roll-shaped film is one of an ink ribbon and a transfer film, or an ink ribbon and a transfer film.   The film winding / winding winding core mounting of the thermal transfer printer according to claim 4 or 5, wherein the winding core for winding the web roll film is one or both of a winding core and a winding core. apparatus.

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