JP2019059235A - Film transfer device - Google Patents

Abstract

To inhibit a multilayer film from being wastefully heated by a film heating roller.SOLUTION: A film transfer device 1 includes: a multilayer film F composed of a plurality of layers to have at least one layer of layers to be transferred on a toner image formed on a sheet S; a film heating roller 141 for heating the multilayer film F; a film heating roller 142 for sandwiching the multilayer film F and the sheet S with the film heating roller 141; and a contact/separation mechanism 180 for moving the film heating roller 141 to a first position for bringing the film heating roller into contact with the multilayer film F and a second position for separating the film heating roller from the multilayer film F by driving force of a motor 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a film transfer apparatus in which a multilayer film is superimposed on a toner image and a layer of the multilayer film is transferred onto the toner image.

  Conventionally, as a film transfer apparatus, one having a multilayer film having a layer of foil, a film heating roller for heating the multilayer film, and a film pressure roller for sandwiching the multilayer film with the film heating roller is known. (See Patent Document 1). In this technique, a multilayer film and a film pressure roller are provided on the base member, and a film heating roller is provided on a cover rotatably provided on the base member. Thus, in this technique, the film heating roller contacts the multilayer film when the cover is closed, and the film heating roller is separated from the multilayer film when the cover is opened.

JP 2002-120960 A

  However, in the prior art, when the cover is in the closed state, the film heating roller is in contact with the multilayer film, so when transferring the layer of foil to the toner image on the sheet, the sheet is pressed with the multilayer film and the film. There is a problem that the film heating roller remains in contact with the multilayer film even when it does not reach the roller and the multilayer film is heated unnecessarily.

  Therefore, an object of the present invention is to suppress wasteful heating of a multilayer film by a film heating roller.

  In order to solve the above-mentioned subject, a film transfer device concerning the present invention heats the multilayer film which consists of a plurality of layers, and has at least one layer for transferring on a toner image formed on a sheet, and the multilayer film A film heating roller, a film pressure roller sandwiching the multilayer film and the sheet between the film heating roller, and a first position where the film heating roller is brought into contact with the multilayer film by a driving force of a motor And a contacting / separating mechanism for moving to a second position to be separated from the multilayer film.

  According to this configuration, the film heating roller can be moved to the first position and the second position by the driving force of the motor. Therefore, when it is not necessary to bring the film heating roller into contact with the multilayer film, the film heating roller can be separated from the multilayer film by the driving force of the motor, so the multilayer film is heated unnecessarily by the film heating roller. You can reduce the

  According to the present invention, it is possible to suppress the wasteful heating of the multilayer film by the film heating roller.

It is a figure showing the film transfer device concerning a 1st embodiment of the present invention. It is a figure which shows the state which opened the cover of the film transfer apparatus. It is a figure which shows a contact / separation mechanism. It is a figure which shows the state of the contact / separation mechanism when a motor is driven. It is a figure which shows the state of the contact / separation mechanism when it begins to open a cover. It is a figure which shows the state of the contact / separation mechanism when a cover is opened to a predetermined position. It is a figure which shows the state of the contacting / separating mechanism when it begins to close a cover from a fully closed position. It is a figure which shows the state of the contact / separation mechanism when a cover is completely closed. It is a figure which shows the contact / separation mechanism which concerns on 2nd Embodiment. It is a figure which shows the state of the contact / separation mechanism when it begins to open a cover in 2nd Embodiment. It is a figure which shows the state of the contact / separation mechanism when a cover is opened to a predetermined position in 2nd Embodiment. It is a figure which shows the contact / separation mechanism which concerns on 3rd Embodiment. It is a figure which shows the state of the contact / separation mechanism when it begins to open a cover in 3rd Embodiment. It is a figure which shows the state of a contacting / separating mechanism when a cover is opened to a predetermined position in 3rd Embodiment. It is a figure which shows the contact / separation mechanism which concerns on 4th Embodiment. (A) showing the structure of the planetary gear mechanism, (b) showing the state of transmission of the driving force of the planetary gear mechanism when the ring gear is locked, and (b) of the driving force of the planetary gear mechanism when the carrier is locked It is a figure (c) which shows the state of transmission. It is a figure which shows a lock mechanism, and is a figure (a) which shows the state which locked the ring gear, and the figure (b) which shows the state which locked the carrier. FIG. 6A is a view of a planetary gear mechanism, a lock mechanism, etc., viewed from a direction orthogonal to the axial direction, and shows a state of transmission of driving force of the planetary gear mechanism when the ring gear is locked; It is a figure (b) which shows the state of transmission of the driving force of the planetary gear mechanism of 1. It is a figure which shows the state of a contact / separation mechanism when it begins to open a cover in 4th Embodiment. It is a figure which shows the state of the contact / separation mechanism when a cover is opened to a predetermined position in 4th Embodiment.

First Embodiment
Next, a first embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, directions will be described in the direction shown in FIG. That is, the left side in FIG. 1 is "front", the right side is "rear", the back side is "left", and the near side is "right". Further, the vertical direction in FIG. 1 is referred to as “upper and lower”.

  As shown in FIG. 1, the film transfer apparatus 1 includes a housing 2, a supply roller 3, a discharge roller 4, a motor 5, a sensor 6, a film transfer unit 140, a contact / separation mechanism 180, and a control unit. It has 200 and.

  The housing 2 accommodates therein the supply roller 3, the discharge roller 4, the motor 5, the sensor 6, the film transfer unit 140, the contact / separation mechanism 180, and the control unit 200. The housing 2 includes a main body housing 21 and a cover 22. The main body case 21 has an opening 21A (see FIG. 2) at the top. The cover 22 is a cover that opens and closes the opening 21 A of the main body case 21 and is rotatably supported by the main body case 21. The cover 22 is movable between an open position for opening the opening 21A and a closed position for closing the opening. In the following description, the open position is a fully open position where the cover 22 is fully opened, and the closed position is a fully closed position when the cover 22 is fully closed.

  As shown in FIG. 3, the cover 22 has a flat plate 22A covering the opening 21A, and an arc portion 22B having an arc shape as viewed from the rotational axis direction of the cover 22. The arc portion 22B has a cover side gear 22G. The cover side gear 22G has a plurality of gear teeth on the circumference of the arc portion 22B.

  Returning to FIG. 1, the main body case 21 is provided with a supply tray 23 and a discharge tray 24. The supply tray 23 is a tray on which sheets S on which a toner image is formed can be stacked, and is disposed on the front side of the main body case 21. The discharge tray 24 is a tray on which the sheet S on which the layer of foil has been transferred by the film transfer unit 140 can be stacked, and is provided on the rear side of the main body case 21.

  The supply roller 3 is a roller for conveying the sheet S on the supply tray 23 toward the film transfer unit 140, and is disposed between the supply tray 23 and the film transfer unit 140. The supply roller 3 includes a pair of rollers, one of which is provided on the cover 22 and the other of which is provided on the main body case 21.

  The discharge roller 4 is a roller that conveys the sheet S having passed through the film transfer unit 140 toward the discharge tray 24, and is disposed between the film transfer unit 140 and the discharge tray 24. The discharge roller 4 includes a pair of rollers, one of which is provided on the cover 22, and the other of which is provided on the main body case 21.

  The motor 5 is a drive source for supplying a driving force to the contact and separation mechanism 180, and is connected to the contact and separation mechanism 180 via a gear or the like (not shown).

  The sensor 6 is a sensor that detects the position of a cam 182 described later of the contact / separation mechanism 180. In addition, as the sensor 6, the optical sensor provided with the light emission part and the light reception part can be used, for example. The light sensor may be, for example, a transmission type light sensor that detects whether light emitted from the light emitting unit to the light receiving unit is blocked by a part of the cam 182 or emitted from the light emitting unit. It may be a reflection type optical sensor or the like whether light is reflected by the cam 182 and received by the light receiving unit.

  The film transfer unit 140 overlays the foil on the surface of the sheet S on which the toner image is formed, and heats and presses the portion of the sheet S with the toner image, the portion without the toner image, and the foil, Has a function to transfer the foil to the In the present embodiment, the film transfer unit 140 transfers a metal-colored foil to a toner image. The film transfer unit 140 includes a multilayer film F, an unwinding shaft 120, a winding shaft 130, a plurality of guide shafts 171, a film heating roller 141, and a film pressure roller 142.

  The unwinding shaft 120 is wound with a multilayer film F having a layer of foil before being transferred. The multilayer film F has at least a release layer and a foil layer formed on a tape-like support made of a polymer material, and has a length of 210 mm or more and 400 mm or less in the direction in which the unwinding shaft 120 and the winding shaft 130 extend. In the state of a new product, it is wound around the unwinding shaft 120 with a length of 10 m or more and 300 m or less. The winding shaft 130 is disposed in front of the unwinding shaft 120. The winding shaft 130 winds the multilayer film F wound around the unwinding shaft 120.

  The foil is a metal such as gold, silver, copper, or aluminum which is thinly stretched. Further, the multilayer film F may be mainly made of a polymer material, have a thickness of 5 to 250 μm, and may be longer than 400 mm in the extending direction of the unwinding shaft 120 and the winding shaft 130. That is, the multilayer film F contains a tape. In addition, the multilayer film F is a film having a plurality of layers made of a material different from the polymer material constituting the film.

  Two guide shafts 171 among the plurality of guide shafts 171 are shafts for guiding the multilayer film F from the unwinding shaft 120 to between the film heating roller 141 and the film pressure roller 142. The remaining two guide shafts 171 are shafts for guiding the multilayer film F toward the winding shaft 130 from between the film heating roller 141 and the film pressure roller 142. The plurality of guide shafts 171 support the multilayer film F such that a part of the multilayer film F is stretched along a common tangential direction of the film heating roller 141 and the film pressure roller 142. In the present embodiment, the common tangential direction of the film heating roller 141 and the film pressing roller 142 is along the front-rear direction.

  The film heating roller 141 and the film pressure roller 142 are provided at a position between the unwinding shaft 120 and the winding shaft 130 in the direction from the unwinding shaft 120 toward the winding shaft 130. The film heating roller 141 is a roller that heats the multilayer film F, and is heated by a heat source (not shown).

  The film pressure roller 142 sandwiches the multilayer film F with the film heating roller 141. The film pressure roller 142 is disposed on the multilayer film F, and the film heating roller 141 is disposed below the multilayer film F. In other words, the multilayer film F is between the film heating roller 141 and the film pressure roller 142 when the cover 22 is in the closed position.

  In the film transfer unit 140, when the sheet S is conveyed between the film pressure roller 142 and the multilayer film F, the sheet S and the multilayer film F are between the film pressure roller 142 and the film heating roller 141. Sandwiched. As a result, the toner image of the sheet S is heated together with the foil layer of the multilayer film F, and the foil is transferred to the toner image.

  Shafts such as the film heating roller 141, the multilayer film F, and the unwinding shaft 120 for supporting the multilayer film F are provided in the main body case 21. The film pressure roller 142 is provided on the cover 22. Thereby, as shown in FIG. 2, when the cover 22 is opened, the film pressure roller 142 is separated from the multilayer film F. In addition, as for the supply roller 3 and the discharge roller 4 described above, one roller is provided on the cover 22 and the other roller is provided on the main body case 21. Therefore, when the cover 22 is opened, each one of the rollers It is designed to leave the other roller. Therefore, when the sheet S is clogged, when the cover 22 is opened, the nip pressure between the rollers is released, and the sheet S can be easily taken out.

  The film heating roller 141 is provided on the main housing 21 via the contact / separation mechanism 180. The contact / separation mechanism 180 is a mechanism for moving the film heating roller 141 to a first position (position in FIG. 1) for contacting the multilayer film F and a second position (position in FIG. 2) for separating the film heating roller 141 from the multilayer film F. is there. The contact / separation mechanism 180 includes a support member 181 that rotatably supports the film heating roller 141, and a cam 182 that presses the film heating roller 141 toward the multilayer film F.

  The support member 181 is supported by the main body case 21 so as to be movable in the vertical direction. The cam 182 is disposed below the support member 181, and presses the film heating roller 141 toward the film pressure roller 142 via the support member 181.

  The cam 182 is rotatable between a contact position (the position shown in FIG. 1) at which the film heating roller 141 contacts the multilayer film F and a retracted position (the position shown in FIG. 2) at which the film heating roller 141 retracts from the multilayer film F It has become. Specifically, the cam 182 can be pivoted between the contact position and the retracted position by the driving force from the motor 5 or the driving force transmitted from the cover 22 when the cover 22 is pivoted. The cam 182 has a fan-like shape as viewed from the rotational axis direction of the cam 182.

  With the cover 22 closed, the contact / separation mechanism 180 moves the film heating roller 141 between the first position and the second position by the drive force of the motor 5 being appropriately applied by the control unit 200. It is possible. The contact / separation mechanism 180 moves the film heating roller 141 to the second position in conjunction with the operation of the cover 22 when opening the cover 22 and does not operate in conjunction with the operation of the cover when closing the cover 22. And the film heating roller 141 is maintained at the second position.

  Specifically, as shown in FIG. 3, the contact / separation mechanism 180 includes the support member 181 and the cam 182 described above, a cam gear Gc coaxially rotating with the cam 182 and a cam gear for driving the motor 5 from the motor 5. A first transmission mechanism T1 capable of transmitting to Gc and a second transmission mechanism T2 capable of transmitting the driving force from the cover 22 to the cam gear Gc are provided. In addition, each gear shown below shall have a gear tooth in all the circumferences unless there is particular explanation. Here, although the position of the rotation center of the cover 22 is different between FIG. 1 and FIG. 3 in view of FIG. 1 and FIG. 3 in a simplified manner, the rotation centers are actually the same.

  The cam gear Gc is fixed to the rotation shaft portion 182A of the cam 182, and can rotate integrally with the cam 182. The rotation shaft portion 182A is rotatably supported by the side frame 21S of the main body casing 21. The cam 182 and the cam gear Gc are disposed with the side frame 21S interposed therebetween. Specifically, the cam 182 is disposed inside the side frame 21S, and the cam gear Gc is disposed outside the side frame 21S. In other words, the side frame 21S is between the cam 182 and the cam gear Gc. The first transmission mechanism T1 and the second transmission mechanism T2 are disposed outside the side frame 21S. In other words, the side frame 21S is between the first transmission mechanism T1 and the cam 182, and also between the second transmission mechanism T2 and the cam 182.

  The first transmission mechanism T1 includes a gear G1 and an electromagnetic clutch EC. The gear G1 meshes with a gear 5G attached to the motor 5 and a gear EG attached to the electromagnetic clutch EC. The gear EG attached to the electromagnetic clutch EC meshes with the gear G1 and the cam gear Gc.

  The electromagnetic clutch EC shuts off the transmission of the driving force from the gear G1 to the cam gear Gc or from the cam gear Gc to the gear G1, and the transmission state for transmitting the driving force from the gear G1 to the cam gear Gc or from the cam gear Gc to the gear G1. It is a clutch that can be switched to the disconnected state. The electromagnetic clutch EC is switched between the transmission state and the disconnection state by being controlled by the control unit 200.

  The second transmission mechanism T2 includes a missing gear GN, a lock mechanism 7 that locks the rotation of the missing gear GN, a transmission gear Gt, a first switching mechanism C1, and gears G2 and G3. The non-toothed gear GN is a double gear, and has a small diameter gear portion N1 and a large diameter gear portion N2 having a diameter larger than that of the small diameter gear portion N1.

  The small diameter gear portion N1 meshes with the cam gear Gc. The large diameter gear portion N2 rotates integrally with the small diameter gear portion N1, has a gear tooth portion N21 capable of meshing with the transmission gear Gt on a part of the peripheral surface, and faces the transmission gear Gt on the other part of the peripheral surface In this state, there is a toothless portion N22 which does not mesh with the transmission gear Gt. When the film heating roller 141 is positioned at the second position spaced apart from the multilayer film F, the non-toothed portion N22 faces the transmission gear Gt (see FIG. 6).

  Further, the missing tooth gear GN has an engagement portion N3 that can be engaged with the lock mechanism 7. The engagement portion N3 is formed, for example, to project from an outer peripheral surface without gear teeth, which is disposed between the small diameter gear portion N1 and the large diameter gear portion N2 in the axial direction of the toothless gear GN. The engagement portion N3 is a protrusion. The surface of the projection in contact with the hook portion 71A of the lock lever 71 is flat. The plane extends from the small diameter gear portion N1 toward the large diameter gear portion N2 in the radial direction.

  The lock mechanism 7 includes a lock lever 71 and a link member 72. The lock lever 71 has a hook portion 71A engageable with the engaging portion N3 and a connecting portion 71B connected to the link member 72. The hook portion 71A has a flat surface in contact with the flat surface of the engaging portion N3 which is a protrusion. As described above, since the hook portion 71A and the engaging portion N3 are in contact with each other at the surface, the hook portion 71A and the engaging portion N3 can be engaged more reliably than in the case of point-to-point contact. Then, the rotation of the tooth missing gear GN can be reliably stopped. The connecting portion 71B has a protrusion that fits into a long hole of a first arm 72A described later.

  The lock lever 71 is rotatably supported by the side frame 21S. Specifically, the lock lever 71 has a lock position (the position shown in FIG. 6) in which the hook portion 71A is positioned on the rotation trajectory of the engagement portion N3 and a release position (the hook portion 71A deviates from the rotation trajectory of the engagement portion N3) It can be pivoted between the position shown in FIG. The lock lever 71 is biased from the release position to the lock position by a spring (not shown).

  The link member 72 is rotatably supported by the side frame 21S. The link member 72 has a first arm 72A extending in one direction from the rotation center and a second arm 72B extending in the other direction from the rotation center. The first arm 72A is connected to the connecting portion 71B of the lock lever 71 via a long hole. The second arm 72B is in contact with a projection 22A provided on the cover 22 when the cover 22 is closed.

  Thereby, the biasing force of a spring (not shown) applied to the lock lever 71 can be received by the cover 22 via the link member 72. When the cover 22 is closed, the link member 72 is supported by the projection 22A of the cover 22, so that the lock lever 71 is in the release position. When the cover 22 is opened, the support of the link member 72 by the projection 22A is released, and the lock lever 71 is pivoted from the release position to the lock position by the biasing force of the spring (see FIG. 5). .

  The transmission gear Gt is a gear that interlocks with the operation of opening the cover 22 and can mesh with the gear tooth portion N21 of the toothless gear GN, and mesh with a first outer race C12 described later of the first switching mechanism C1. ing.

  The first switching mechanism C1 is a one-way clutch that transmits torque only in one direction, and mainly includes a first inner race C11 and a first outer race C12. The first inner race C11 has gear teeth on the entire circumference, and meshes with the large diameter gear portion G32 of the gear G3. The first outer race C12 has gear teeth on the entire circumference and meshes with the transmission gear Gt.

  When the first inner race C11 rotates clockwise, the first inner race C11 engages with the first outer race C12 and rotates together with the first outer race C12 (see FIG. 6). Thereby, when the first switching mechanism C1 opens the cover 22, the first switching mechanism C1 transmits the driving force from the cover 22 to the transmission gear Gt.

  Further, when the first inner race C11 rotates counterclockwise in the figure, the first inner race C11 rotates with respect to the first outer race C12 without engaging with the first outer race C12 (see FIG. 7). ). As a result, when the cover 22 is closed, the first switching mechanism C1 blocks transmission of the driving force from the cover 22 to the transmission gear Gt.

  In addition, when the first outer race C12 rotates clockwise, the first outer race C12 rotates with respect to the first inner race C11 without engaging with the first inner race C11 (see FIG. 4). . Thus, the first switching mechanism C1 blocks transmission of the driving force from the transmission gear Gt to the cover 22 in a state where the cover 22 is closed.

  The gear G2 is a two-step gear, and has a large diameter gear portion G21 and a small diameter gear portion G22 whose diameter is smaller than that of the large diameter gear portion G21. The large diameter gear portion G21 rotates integrally with the small diameter gear portion G22 with respect to the same shaft. The large diameter gear portion G21 meshes with the small diameter gear portion G31 of the gear G3. The small diameter gear portion G22 meshes with a cover side gear 22G formed around the rotation axis of the cover 22.

  Further, a gear G3, a second switching mechanism C2, and a damper D are provided outside the side frame 21S. The gear G3 is a double gear, and has a small diameter gear portion G31 and a large diameter gear portion G32 having a diameter larger than that of the small diameter gear portion G31. The small diameter gear portion G31 rotates integrally with the large diameter gear portion G32 with respect to the same shaft. The small diameter gear portion G31 meshes with the large diameter gear portion G21 of the gear G2. The large diameter gear portion G32 meshes with a later-described second inner race C21 of the second switching mechanism C2 and the first inner race C11.

  The second switching mechanism C2 is a one-way clutch that transmits torque only in one direction, and mainly includes a second inner race C21 and a second outer race C22. The second inner race C21 has gear teeth on the entire circumference and meshes with the large diameter gear portion G32 of the gear G3. The second outer race C22 has gear teeth on the entire circumference, and meshes with a gear DG attached to the damper D.

  The second inner race C21 engages with the second outer race C22 and rotates together with the second outer race C22 when the second inner race C21 rotates counterclockwise in FIG. 7 (see FIG. 7). Thus, the second switching mechanism C2 transmits the driving force of the cover 22 to the damper D when the cover 22 is closed.

  In addition, when the second inner race C21 rotates clockwise as illustrated, it does not engage with the second outer race C22, but rotates relative to the second outer race C22 (see FIG. 5). . Thus, the second switching mechanism C2 blocks transmission of the driving force of the cover 22 to the damper D when the cover 22 is opened.

  The damper D is a rotary damper and generates a braking force with respect to the operation of the cover 22. As the damper D, it is possible to use, for example, a hydraulic damper or the like that utilizes the viscosity resistance of the oil enclosed inside.

  As shown in FIG. 1, the control unit 200 supplies electric power to the electromagnetic clutch EC and the motor 5 for a predetermined period of time to execute the foil transfer control for transferring the foil to the toner image on the sheet S. It is possible to execute control for appropriately switching the position 182 between the contact position (the position of the broken line in FIG. 4) and the retracted position (the position of the two-dot chain line in FIG. 4). Specifically, the control unit 200 positions the cam 182 at the retracted position until the sheet S reaches the nip portion between the film pressing roller 142 and the multilayer film F from the supply tray 23, and the sheet S is nipped. The cam 182 is positioned at the contact position when it reaches the part. Thus, the film heating roller 141 is separated from the multilayer film F until the sheet S reaches the nip portion, and the film heating roller 141 is brought into contact with the multilayer film F when the sheet S reaches the nip portion. Is possible. The determination as to whether or not the sheet S has reached the nip portion can be made based on, for example, a sheet sensor that detects the passage of the sheet S, or that a predetermined time has elapsed since the supply roller 3 was driven. It can also be done based on

  When switching the position of the cam 182, the controller 200 causes the electromagnetic clutch EC and the motor 5 to supply power. As a result, the motor 5 rotates and the electromagnetic clutch EC is in the transmission state, so the driving force of the motor 5 is transmitted to the cam 182.

  Further, when stopping the rotation of the cam 182, the control unit 200 stops the power supply to at least one of the electromagnetic clutch EC and the motor 5. As a result, the electromagnetic clutch EC is disengaged or the motor 5 is stopped, so the transmission of the driving force from the motor 5 to the cam 182 is interrupted.

  The control unit 200 is also connected to the sensor 6 via a bus so as to receive a signal from the sensor 6. When the control unit 200 closes the cover 22, it determines whether the cam 182 is positioned at the retracted position based on the signal from the sensor 6 and determines that the cam 182 is not positioned at the retracted position. It is possible to control the electromagnetic clutch EC and the motor 5 to rotate the cam 182 to the retracted position. The determination as to whether or not the cover 22 is closed may be made based on, for example, a signal from an open / close sensor that detects that the cover 22 is closed.

Next, the operation and effect of the contact / separation mechanism 180 will be described in detail.
As shown in FIG. 4, when performing the foil transfer control, when the position of the cam 182 is at the retracted position shown by a two-dot chain line, the control unit 200 supplies power to the electromagnetic clutch EC and the motor 5. Instead, the feed roller 3 shown in FIG. 1 is driven to convey the sheet S toward the nip portion between the film pressure roller 142 and the multilayer film F.

  When the sheet S reaches the nip portion, the control unit 200 causes the electromagnetic clutch EC and the motor 5 to supply power for a predetermined time. Thereby, the motor 5 rotates clockwise in the figure, and the driving force of the motor 5 is transmitted to the cam gear Gc via the gear G1 and the electromagnetic clutch EC for a predetermined time, so the cam 182 rotates approximately 180 ° counterclockwise in the figure. Rotate. Thus, the cam 182 rotates from the retracted position to the contact position, so that the film heating roller 141 can be moved from the second position to the first position by pushing the support member 181 upward by the cam 182. As a result, the nip pressure between the multilayer film F and the film pressure roller 142 can be set to an appropriate value, and foil transfer can be favorably performed.

  At this time, although the toothless gear GN, the transmission gear Gt, and the first outer race C12 also rotate, the first outer race C12 rotates to the first inner race C11 because the first outer race C12 rotates clockwise. Rotate to slide against. As a result, since the first inner race C11 does not rotate, the driving force of the motor 5 is not transmitted to the cover 22. That is, even if the motor 5 is driven with the cover 22 closed, the cover 22 does not open. Here, in the drawings of FIG. 4 and the like, hatching of dots is applied to members which are stopped without being rotated.

  After that, when the sheet S on which the foil transfer has been performed passes through the nip portion between the multilayer film F and the film pressure roller 142, the control unit 200 supplies electric power to the electromagnetic clutch EC and the motor 5 for a predetermined time. Rotate 182 about 180 degrees counterclockwise as shown. As a result, the cam 182 rotates from the contact position to the retracted position, so the support member 181 supported from below by the cam 182 gradually falls by gravity, and the film heating roller 141 moves from the first position to the second position. It can be moved. Therefore, since the film heating roller 141 can be separated from the multilayer film F until the next sheet S reaches the nip portion, unnecessary heating of the multilayer film F can be suppressed.

Next, the operation and effect of the contact / separation mechanism 180 when the user erroneously opens the cover 22 during foil transfer control will be described.
During foil transfer control shown in FIG. 4, if the user erroneously opens the cover 22, the power supply for supplying power to the electromagnetic clutch EC and the motor 5 is forcibly turned off. Therefore, at this time, when the film heating roller 141 is positioned at the first position, the film heating roller 141 remains in contact with the multilayer film F, and the multilayer film F may be heated unnecessarily. .

  In the present embodiment, since the second transmission mechanism T2 for transmitting the driving force of the cover 22 to the cam 182 is provided, the cam 182 opens the cover 22 even when the driving force of the motor 5 is broken. It is rotated in conjunction with the operation. Therefore, the user can move the film heating roller 141 from the first position to the second position even when the driving force of the motor 5 is cut off. In other words, the film transfer apparatus 1 can move the film heating roller 141 from the first position to the second position even when the driving force of the motor 5 is cut.

  Specifically, as shown in FIG. 5, when the user opens the cover 22, the driving force of the cover 22 is transmitted by the cover side gear 22G, the gear G2, the gear G3, the first switching mechanism C1, the transmission gear Gt and the missing gear GN. Is transmitted to the cam gear Gc. Thereby, the cam 182 starts to rotate from the contact position toward the retracted position.

  When the cover 22 is opened, the second inner race C21 engaged with the gear G3 also rotates, but the second inner race C21 rotates in the clockwise direction as shown in the figure, so the second inner race C21 forms the second outer race C22. Rotate to slide against. Thereby, since the second outer race C22 does not rotate, it is possible to suppress that the operation of opening the cover 22 is inhibited by the resistance of the damper D.

  When the cover 22 is opened, the projection 22A of the cover 22 is disengaged from the link member 72, whereby the lock lever 71 is pivoted from the release position to the lock position by the biasing force of the spring.

  As shown in FIG. 6, the cover 22 is opened to a predetermined position (solid line position), and when the cam 182 reaches the retracted position, the non-toothed portion N22 of the non-toothed gear GN faces the transmission gear Gt to transmit Transmission of the driving force from the gear Gt to the toothless gear GN is cut off. As a result, the cam 182 stays at the retracted position, and the film heating roller 141 is held at the second position away from the multilayer film F. When the toothless portion N22 of the toothless gear GN faces the transmission gear Gt, the lock lever 71 engages with the engaging portion N3. Therefore, the direction of the toothless gear GN is locked by the lock lever 71.

  After that, even if the cover 22 is opened to the fully open position shown by the two-dot chain line, the transmission of the driving force from the transmission gear Gt to the missing gear GN is broken, so the film heating roller 141 is maintained at the second position. Ru. Therefore, even if the user accidentally opens the cover 22 during foil transfer control and the power is forcibly turned off, the film heating roller 141 is separated from the multilayer film F by the driving force from the cover 22. It is possible to suppress wasteful heating of the multilayer film F.

  As shown in FIG. 7, when the cover 22 is closed from the fully open position shown by a two-dot chain line, the driving force of the cover 22 is transmitted to the first inner race C11 via the cover side gear 22G, the gear G2 and the gear G3. However, since the first inner race C11 rotates counterclockwise in the drawing, the first inner race C11 rotates so as to slide relative to the first outer race C12. As a result, since the first outer race C12 does not rotate, the film heating roller 141 is maintained at the second position without the driving force of the cover 22 being transmitted to the cam 182.

  When the cover 22 is closed, the driving force of the cover 22 is transmitted to the damper D via the cover side gear 22G, the gears G2 and G3, and the second switching mechanism C2. Thereby, the shock at the time of closing the cover 22 can be relieved by the damper D.

  Since the transmission of the driving force of the cover 22 at the time of closing the cover 22 does not change until the cover 22 is fully closed as shown in FIG. 8, the film heating roller 141 is closed until the cover 22 is fully closed. It can be maintained in 2 positions. Therefore, the film heating roller 141 remains separated from the multilayer film F even when the user accidentally opens the cover 22 during foil transfer control after closing the cover 22 completely, so the multilayer film Wasteful heating of F can be suppressed.

  When the cover 22 is fully closed, the projection 22A of the cover 22 pushes the link member 72 downward, so the lock lever 71 pivots from the lock position to the release position. Thereby, when performing foil transfer control next time, the cam 182 can be favorably rotated by the driving force of the motor 5. Further, since the shock when the projection 22A abuts on the link member 72 is mitigated by the damper D, breakage of the projection 22A or the link member 72 can be suppressed.

  As shown in FIG. 3, with the cam 182 at the contact position, the cover 22 is opened from the fully closed position, and the non-toothed portion N22 of the non-toothed gear GN is as shown in FIG. If the cover 22 is closed to the fully closed position before facing, the cam 182 may stop at a position different from the contact position and the retracted position. Specifically, for example, when the cover 22 is opened to the state shown in FIG. 5, the cam 182 rotates to a position slightly offset from the contact position. Thereafter, when the cover 22 is closed from the position shown in FIG. 5, the driving force of the cover 22 is not transmitted to the cam 182 by the first switching mechanism C1, so the cam 182 is maintained at a position slightly offset from the contact position. become. In this case, the film heating roller 141 may be kept in contact with the multilayer film F.

  Even in this case, when the cover 22 is closed, the control unit 200 detects the position of the cam 182 with the sensor 6 and rotates the cam 182 to the retracted position, so the multilayer film F is heated by the film heating roller 141. Can suppress unnecessary heating.

According to the above, the following effects can be obtained in the present embodiment.
When the film heating roller 141 does not need to be in contact with the multilayer film F, the film heating roller 141 can be separated from the multilayer film F by the driving force of the motor 5, so the multilayer film F is wasted by the film heating roller 141. Can be suppressed from being heated.

  When the cover 22 is opened, the film heating roller 141 is separated from the multilayer film F in conjunction with the operation of the cover 22. Therefore, as described above, the case where the cover 22 is opened during foil transfer control or jamming is performed. In the case etc., it can suppress that the multilayer film F is heated needlessly. When the cover 22 is closed, the film heating roller 141 is maintained at the second position. Therefore, even when the temperature of the film heating roller 141 is high when the cover 22 is closed, the multilayer film F is used. It can suppress that it is heated unnecessarily.

  Since the first switching mechanism C1 and the second switching mechanism C2 are respectively one-way clutches, the contact and separation mechanism 180 can be miniaturized as compared with the case where the switching mechanism has another structure.

  Since the driving force of the cover 22 when the cover 22 is closed is transmitted to the damper D, the speed at which the cover 22 is closed can be reduced.

Second Embodiment
Next, a second embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In addition, since the present embodiment is a modification of the structure of a part of the contacting / separating mechanism 180 according to the first embodiment described above, the components substantially similar to those of the first embodiment have the same reference numerals. The explanation is omitted.

  As shown in FIG. 9, the contact / separation mechanism 280 according to the second embodiment includes a first switching mechanism C3 having a structure different from that of the first switching mechanism C1 according to the first embodiment. The first switching mechanism C3 is a rack gear that can move linearly, and is supported by the main housing 21 so as to be movable in the front-rear direction.

  The first switching mechanism C3 includes a gear tooth portion C31 meshing with the gear G2, a meshing portion C32 meshable with the gear tooth portion N21 of the tooth missing gear GN, and the tooth missing gear GN in a state facing the tooth missing gear GN. Has a non-engaging portion C33 which does not engage. Here, the meshing portion C32 also corresponds to a transmission gear.

  The non-engaging portion C33 is disposed between the gear tooth portion C31 and the meshing portion C32. When the cover 22 is closed, the non-engaging portion C33 is opposed to the gear teeth N21 of the tooth missing gear GN in the vertical direction, that is, in the direction orthogonal to the moving direction of the first switching mechanism C3.

  The gear toothed portion C31 meshes with the gear G2 at any position from the fully closed position to the fully open position of the cover 22. When the cover 22 is in the fully closed position, the meshing portion C32 is separated from the gear tooth portion N21 of the missing tooth gear GN. As shown in FIG. 10, the meshing portion C32 is configured to mesh with the gear tooth portion N21 of the missing gear GN while the cover 22 is pivoted from the fully closed position toward the fully open position. The meshing portion C32 is disposed at a position shifted in the axial direction of the cam 182 with respect to the cam 182 and the cam gear Gc, and the cam 182 and the cam gear Gc do not interfere with each other.

  In this embodiment, as shown in FIG. 9, when foil transfer control is performed in a state where the cover 22 is closed, the non-engaging portion C33 is opposed to the non-toothed gear GN so that Since the driving force is not transmitted to the switching mechanism C3, as in the first embodiment, the position of the cam 182 can be appropriately switched by the driving force of the motor 5.

  Further, as shown in FIG. 10, when the cover 22 is opened from the fully closed position, the driving force of the cover 22 is transmitted to the first switching mechanism C3 via the cover side gear 22G and the gear G2, and the first The switching mechanism C3 moves forward. Thereafter, when the meshing portion C32 meshes with the gear tooth portion N21 of the missing gear GN, the driving force is transmitted from the first switching mechanism C3 to the cam gear Gc via the missing gear GN, so the cam 182 starts to rotate. .

  As shown in FIG. 11, when the toothless portion N22 of the toothless gear GN faces the meshing portion C32, the transmission of the driving force from the first switching mechanism C3 to the toothless gear GN is cut off, so that the rotation of the cam 182 also stops. Thus, the cam 182 is positioned at the retracted position. Therefore, also in the present embodiment, the same effects as in the first embodiment can be obtained. In addition, in this embodiment, compared with the structure using 1st switching mechanism C1 which is a one-way clutch like 1st Embodiment, the effect that cost can be made low can also be acquired.

Third Embodiment
Next, a third embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In addition, since the present embodiment is a modification of the structure of a part of the contacting / separating mechanism 180 according to the first embodiment described above, the components substantially similar to those of the first embodiment have the same reference numerals. The explanation is omitted.

  As shown in FIG. 12, the contact / separation mechanism 380 according to the third embodiment differs from the first switching mechanism C4 according to the first embodiment in the first switching mechanism C4 and in the first embodiment. The second switching mechanism C2 is provided with a second switching mechanism C5 having a different structure.

  The first switching mechanism C4 includes a first base gear C41 and a first pendulum gear C42. The first base gear C41 is a gear that rotates in conjunction with the opening and closing of the cover 22, and meshes with the gear G2.

  The first pendulum gear C42 has a first base gear C41 between a first meshing position (position shown by solid line in FIG. 13) meshing with the transmission gear Gt and a first separated position (position in FIG. 12) separated from the transmission gear Gt. It can move while meshing with the The first pendulum gear C42 is in the first separated position when the cover 22 is in the fully closed position. Then, when the cover 22 moves from the fully closed position to the fully open position, the first pendulum gear C42 moves from the first separated position to the first meshing position, and when the cover 22 moves from the fully open position to the fully closed position. It is adapted to move from the first meshing position to the first separated position.

  The main body casing 21 includes an urging member SP that urges the first pendulum gear C42 in a direction away from the transmission gear Gt. The biasing member SP is a torsion spring, and one end thereof engages with the shaft portion of the first pendulum gear C42, and the other end engages with a spring engaging portion 21B provided in the main body casing 21.

  The second switching mechanism C5 includes a first base gear C41 and a second pendulum gear C52. Here, the first base gear C41 also corresponds to a second base gear. That is, in the present embodiment, the base gear constituting the first switching mechanism C4 and the base gear constituting the second switching mechanism C5 are the common first base gear C41.

  The second pendulum gear C52 meshes with the first base gear C41 between a second meshing position (position in FIG. 12) meshing with the damper D and a second separated position (solid line position in FIG. 13) separated from the damper D. It is possible to move while. The second pendulum gear C52 is in the second meshing position when the cover 22 is in the fully closed position. The second pendulum gear C52 moves from the second meshing position to the second separated position when the cover 22 moves from the fully closed position to the fully open position, and when the cover 22 moves from the fully open position to the fully closed position. , And from the second separated position to the second meshing position.

  In this embodiment, as shown in FIG. 12, when foil transfer control is performed with the cover 22 closed, the first pendulum gear C42 is separated from the transmission gear Gt. Since the driving force is not transmitted from Gt to the first switching mechanism C4, the position of the cam 182 can be appropriately switched by the driving force of the motor 5 as in the first embodiment.

  Further, as shown in FIG. 13, when the cover 22 is opened from the fully closed position, the driving force of the cover 22 is transmitted to the first base gear C41 through the cover side gear 22G and the gear G2, and the first base gear C41 rotates counterclockwise as shown. By this rotation, the second pendulum gear C52 separates from the damper D, and the first pendulum gear C42 meshes with the transmission gear Gt. Therefore, thereafter, the driving force of the cover 22 is transmitted from the first pendulum gear C42 to the cam gear Gc via the transmission gear Gt and the missing gear GN, so that the cam 182 starts to rotate.

  As shown in FIG. 14, when the non-toothed portion N22 of the non-toothed gear GN faces the transmission gear Gt, the transmission of the driving force from the transmission gear Gt to the non-toothed gear GN is cut off. The cam 182 is positioned at the retracted position. Therefore, also in the present embodiment, the same effects as in the first embodiment can be obtained. In the present embodiment, since the first switching mechanism C4 has a structure using the first pendulum gear C42, the cost is reduced as compared with the structure using the first switching mechanism C3 which is a rack gear as in the second embodiment. An effect that can be lowered can also be obtained. Further, in the present embodiment, since each switching mechanism C4, C5 has a structure using the pendulum gears C42, C52, compared with the structure using the switching mechanisms C1, C2 which are one-way clutches as in the first embodiment, Cost can be lowered.

  Further, in the present embodiment, since the biasing member SP for biasing the first pendulum gear C42 in the direction away from the transmission gear Gt is provided, when the cover 22 is closed, the first pendulum gear C42 is not connected to the transmission gear Gt. It can be separated reliably.

Fourth Embodiment
Next, a fourth embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In addition, since the present embodiment is a modification of the structure of a part of the contacting / separating mechanism 180 according to the first embodiment described above, the components substantially similar to those of the first embodiment have the same reference numerals. The explanation is omitted.

  As shown in FIG. 15, the contact / separation mechanism 480 according to the fourth embodiment includes a planetary gear mechanism 80 instead of the tooth missing gear GN according to the first embodiment.

  As shown in FIG. 16A, the planetary gear mechanism 80 includes a sun gear 81, a plurality of planetary gears 82, a ring gear 83, and a carrier 84. The sun gear 81 is a double gear, and has a large diameter gear portion 81A and a small diameter gear portion 81B whose diameter is smaller than that of the large diameter gear portion 81A.

  The large diameter gear portion 81A meshes with the transmission gear Gt. The small diameter gear portion 81B is a gear that meshes with each planetary gear 82, and can rotate together with the large diameter gear portion 81A.

  The planetary gear 82 is disposed around the small diameter gear portion 81 B, meshes with the small diameter gear portion 81 B, and meshes with the internal teeth 83 A of the ring gear 83.

  The ring gear 83 is formed in a ring shape having an outer diameter smaller than that of the large diameter gear portion 81A. On the inner peripheral surface of the ring gear 83, internal teeth 83A are formed over the entire circumference.

  The carrier 84 is a cylindrical member whose outer diameter is smaller than the outer diameter of the ring gear 83, and rotatably supports the shaft of each planetary gear 82 at its end. On a part of the outer peripheral surface of the carrier 84, a gear tooth portion 84A meshing with the cam gear Gc is formed over the entire circumference.

  In this planetary gear mechanism 80, as shown in FIG. 16 (b), when the ring gear 83 is locked, the driving force of the cover 22 is transferred to the cam gear Gc via the transmission gear Gt, the sun gear 81, the planetary gear 82 and the carrier 84. It is possible to transmit to Specifically, when the sun gear 81 rotates, the planetary gear 82 shown in FIG. 16 (a) rotates along the inner circumferential surface of the ring gear 83 which is locked. That is, the planetary gear 82 rotates on its own rotation axis and revolves around the rotation axis of the sun gear 81. As a result, the carrier 84 rotates, and the driving force is transmitted from the carrier 84 to the cam gear Gc.

  Conversely, when the driving force of the motor 5 is transmitted to the carrier 84 through the cam gear Gc in a state where the ring gear 83 is locked, the driving force from the cam gear Gc is transferred to the carrier 84 by the same action. It is also possible to transmit to the transmission gear Gt via the planetary gear 82 and the sun gear 81.

  Further, as shown in FIG. 16C, when the carrier 84 is locked, the driving force of the cover 22 is transmitted to the ring gear 83 via the transmission gear Gt, the sun gear 81 and the planetary gear 82, and the ring gear 83 is idled. By doing this, the power is not transmitted to the cam gear Gc. Specifically, when the sun gear 81 rotates, the planetary gear 82 shown in FIG. 16A is supported by the locked carrier 84 and rotates on the spot without revolving around the rotation shaft of the sun gear 81. . As a result, the ring gear 83 that is free is idled.

Next, a structure for locking the ring gear 83 or the carrier 84 will be described.
As shown in FIG. 17A, the main housing 21 is provided with a lock mechanism 90 so as to be rotatable.

  The lock mechanism 90 includes a first lock arm 91 for locking the ring gear 83, a second lock arm 92 for locking the carrier 84, and a spring 93 for biasing the second lock arm 92 toward the carrier 84. Is equipped. The first lock arm 91 is rotatable with respect to the main body case 21, and one end thereof is pivotally supported by the main body case 21, and the other end is an engagement provided on the outer peripheral surface of the ring gear 83. The hook portion 91A engages with the protrusion 83B. A plurality of engaging protrusions 83B are provided on the outer peripheral surface of the ring gear 83 at a substantially equal pitch along the circumferential direction. The first lock arm 91 and the second lock arm 92 are fixed to the same shaft so as to form a substantially right angle.

  The second lock arm 92 is rotatable around the same axis as the first lock arm 91 with respect to the main housing 21 together with the first lock arm 91, and one end portion of the second lock arm 92 is of the first lock arm 91. It is fixed to one end, and is pivotally supported by the main body casing 21 together with one end of the first lock arm 91. The other end of the second lock arm 92 is a hook 92A engaged with an engagement recess 84B formed on the outer peripheral surface of the carrier 84. The second lock arm 92 is disposed at a position different from that of the first lock arm 91 in the axial direction of the sun gear 81 (see FIG. 18A).

  The spring 93 is disposed between a spring support 21 </ b> C provided on the main body case 21 and the second lock arm 92.

  As shown in FIG. 17A, when the cover 22 is closed, the first lock arm 91 is held at a position where it engages with the engagement projection 83B by the support projection 22B provided on the cover 22. It is supposed to be. Thus, the ring gear 83 is locked when the cover 22 is closed. Therefore, when the cover 22 is closed, as shown in FIG. 18A, it is possible to transmit the driving force from the transmission gear Gt to the cam gear Gc or from the cam gear Gc to the transmission gear Gt. There is.

  At this time, as shown in FIG. 17A, the second lock arm 92 is held at a position away from the engagement recess 84B. At this time, the spring 93 is in a state of being compressed between the second lock arm 92 and the spring support portion 21C.

  As shown in FIG. 17B, when the cover 22 is opened to a predetermined position and the support of the first lock arm 91 by the support projection 22B is released, the second lock arm 92 is moved by the carrier by the biasing force of the spring 93. It turns toward 84 and engages with the engagement recess 84B. Thereby, when the cover 22 is opened to a predetermined position, the carrier 84 is locked. Therefore, when the cover 22 is opened to a predetermined position, as shown in FIG. 18B, the driving force from the transmission gear Gt is not transmitted to the cam gear Gc. At this time, the first lock arm 91 is held at a position separated from the engagement protrusion 83B.

  Here, the support projection 22B supports the first lock arm 91 and engages the first lock arm 91 with the engagement projection 83B until the cover 22 is pivoted from the fully closed position to a predetermined position. It is maintained in the state. Thus, the cam 182 is rotated by the driving force of the cover 22 until the cover 22 is rotated from the fully closed position to the predetermined position. Then, when the cover 22 reaches the predetermined position, the cam 182 is positioned at the retracted position. At this time, the support projection 22B is disengaged from the first lock arm 91, whereby the cam 182 from the cover 22 is removed. The transmission of the driving force to the motor is broken, and the rotation of the cam 182 is stopped at the retracted position.

  In this embodiment, as shown in FIG. 15, the ring gear 83 is locked when foil transfer control is performed with the cover 22 closed, as shown in FIG. The driving force is transmitted from the cam gear Gc to the transmission gear Gt via the planetary gear mechanism 80, but this driving force is not transmitted to the cover 22 by the first switching mechanism C1 similar to the first embodiment. Therefore, also in this embodiment, as in the first embodiment, the position of the cam 182 can be appropriately switched by the driving force of the motor 5.

  When the cover 22 is opened from the fully closed position toward the predetermined position as shown in FIG. 19, since the ring gear 83 is locked, the driving force of the cover 22 is the cover side gear 22G, It is transmitted to the cam gear Gc through the gear G2, the gear G3, the first switching mechanism C1, the transmission gear Gt, and the planetary gear mechanism 80. Thereby, the cam 182 starts to rotate.

  As shown in FIG. 20, when the cover 22 is opened to a predetermined position and the cam 182 is in the retracted position, the support projection 22B shown in FIG. 17B is disengaged from the first lock arm 91, and the second lock arm The carrier 84 is locked by 92. Thereby, the driving force of the cover 22 is not transmitted to the cam gear Gc by the planetary gear mechanism 80, and the cam 182 is maintained at the retracted position, so that the same effect as that of the first embodiment can be obtained in this embodiment. be able to.

  As mentioned above, although each embodiment of this invention was described, this invention is not limited to said each embodiment. The specific configuration can be modified as appropriate without departing from the spirit of the present invention.

  The sheet may be a sheet such as plain paper or cardboard, or another sheet such as an OHP sheet.

  The multilayer film may be a film without a layer of foil. For example, it may be a film having a wood grain coloring material layer instead of a foil layer. Alternatively, the film may be a film having only an adhesive layer adhering to the toner and a release layer between the adhesive layer and the support.

  In the embodiment, the film heating roller 141 is pressed toward the multilayer film F by the cam 182, but the present invention is not limited to this. For example, the film heating roller is separated from the multilayer film by biasing the film heating roller toward the multilayer film by an elastic member such as a spring and pressing the film heating roller against the biasing force of the elastic member by the cam. May be

  In the third embodiment, although the base gear constituting the first switching mechanism C4 and the base gear constituting the second switching mechanism C5 are the common first base gear C41, the present invention is not limited to this. . For example, the first switching mechanism may be configured by the first base gear and the first pendulum gear, and the second switching mechanism may be configured by the second base gear and the second pendulum gear different from the first base gear.

  In the third embodiment, although the biasing member SP is a torsion spring, the present invention is not limited to this, and the biasing member may be, for example, a compression coil spring, a tension coil spring, a plate spring, a wire spring or the like Good.

  In addition, each element described in the above-described embodiment and modification may be implemented in any combination.

DESCRIPTION OF SYMBOLS 1 film transfer apparatus 5 motor 141 film heating roller 142 film pressure roller 180 contact / separation mechanism F multilayer film S sheet

Claims (12)

A multilayer film comprising a plurality of layers and at least one layer for transferring onto a toner image formed on a sheet;
A film heating roller for heating the multilayer film;
A film pressure roller sandwiching the multilayer film and the sheet with the film heating roller;
A film characterized by comprising a contact / separation mechanism for moving the film heating roller to a first position for contacting the multilayer film and a second position for spacing the multilayer film away from the multilayer film by a driving force of a motor. Transfer device.   The film transfer apparatus according to claim 1, wherein the contact / separation mechanism includes a cam that presses the film heating roller toward the multilayer film. Body case,
And a cover for opening and closing the opening of the main body case,
The contact / separation mechanism is
When the cover is opened, the film heating roller is moved to the second position in conjunction with the operation of the cover;
3. The film transfer apparatus according to claim 1, wherein when the cover is closed, the film heating roller is maintained at the second position without being interlocked with the operation of the cover. The contact / separation mechanism is
A transmission gear interlocked with an operation of opening the cover;
A partially toothed gear having a gear tooth portion capable of meshing with the transmission gear on a part of the circumferential surface, and having a toothless portion not meshing with the transmission gear on the other surface of the circumferential surface facing the transmission gear , And
The film transfer apparatus according to claim 3, wherein the non-toothed portion faces the transmission gear when the film heating roller is positioned at the second position.   The contact / separation mechanism transmits the driving force from the cover to the transmission gear when the cover is opened, and blocks the transmission of the driving force from the transmission gear to the cover when the cover is closed. 5. A film transfer apparatus according to claim 4, further comprising: a switching mechanism.   The film transfer apparatus according to claim 5, wherein the first switching mechanism is a one-way clutch. The first switching mechanism is a rack gear that can move linearly, and a meshing portion that can mesh with the missing gear, and a non-meshing portion that does not mesh with the missing gear in a state facing the missing gear. And have
The film transfer apparatus according to claim 5, wherein the non-engaging portion faces the non-toothed gear when the cover is closed. The first switching mechanism is configured to rotate the first base gear that rotates in conjunction with the opening and closing of the cover, and the first base gear between a first meshing position that meshes with the transmission gear and a first separated position that separates from the transmission gear. And a first pendulum gear movable while meshing with the
The cover is movable between an open position opening the opening and a closed position closing the opening;
The first pendulum gear moves from the first separated position to the first meshing position when the cover moves from the closed position to the open position, and the cover moves from the open position to the closed position. 6. The film transfer apparatus according to claim 5, wherein the film transfer device is moved from the first meshing position to the first separation position.   9. A film transfer apparatus according to claim 8, further comprising a biasing member for biasing said first pendulum gear in a direction away from said transmission gear. A damper that generates a braking force for the movement of the cover;
Providing a second switching mechanism for transmitting the driving force of the cover at the time of closing the cover to the damper and blocking the transmission of the driving force of the cover at the time of opening the cover to the damper; The film transfer apparatus according to any one of claims 3 to 9, which is characterized by the following.   The film transfer apparatus according to claim 10, wherein the second switching mechanism is a one-way clutch. The second switching mechanism meshes with the second base gear between a second base gear that rotates in conjunction with the opening and closing of the cover, and a second meshing position that meshes with the damper and a second separated position that separates from the damper And a movable second pendulum gear,
The cover is movable between an open position opening the opening and a closed position closing the opening;
The second pendulum gear moves from the second separated position to the second meshing position when the cover moves from the open position to the closed position, and the cover moves from the closed position to the open position. 11. The film transfer device according to claim 10, wherein the film transfer device moves from the second meshing position to the second separation position.

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