JP6899581B2 - Coating film transfer tool - Google Patents

Description

The present invention belongs to the technical field of a coating film transfer tool for press-transferring a character correction coating film, an adhesive adhesive film, a decorative coating film, etc. to an object to be transferred.

FIG. 7 is a front view for explaining the configuration of the conventional coating film transfer tool 1. The coating film transfer tool 1 includes a case 5 having support shafts 12 and 14, a transfer head 4 protruding outward from the case 5, a feeding core 2 and a winding core rotatably held by the support shafts 12 and 14. 3. The transfer tape T has a coating film laminated on the surface of the base tape, and the opening of the case 5 is covered with a cover (not shown). The transfer tape T is wound around the feeding core 2, and the transfer tape T fed from the feeding core 2 is separated into a coating film and a base material tape at the transfer head 4, and the coating film is transferred to the transfer target. Only the base material tape is wound around the winding core 3. A belt 7 is hung on both cores 2 and 3 so that the feeding core 2 and the winding core 3 rotate in conjunction with each other.

In this coating film transfer tool 1, both cores 2 and 3 are rotated so that the winding length of the base material tape is longer than the feeding length of the transfer tape at the time of coating film transfer, and an appropriate tension is applied to the transfer tape T. The transfer tape T is prevented from loosening. At the end of use of the transfer tape, the outer diameter of the feed pancake of the transfer tape wound around the feed core becomes smaller, so the transfer is performed compared to the initial stage of use where the outer diameter of the feed pancake of the transfer tape wound around the feed core is large. A large tension is applied to the tape T. If the tension applied to the transfer tape T becomes too large at the end of use, it is necessary to strongly press the transfer head against the transfer target to perform the transfer operation when the coating film is transferred to the transfer target. When the transfer head was strongly pressed against the transfer target to perform the transfer operation, the problem of transfer failure occurred depending on the user.

If the tension applied to the transfer tape T at the end of use is reduced, the transfer failure at the end of use can be improved, but there is a problem that the tension applied to the transfer tape T at the end of use becomes too small. If the tension applied to the transfer tape T at the initial stage of use becomes too small, the coating film cannot be sheared after the transfer is completed at the initial stage of use, which causes a problem that the coating film is poorly cut.

On the other hand, if the outer diameter of the feeding core is made sufficiently large, the difference in the outer diameter of the feeding pancake of the transfer tape T wound around the feeding core at the initial stage of use and the final stage of use can be reduced. Even if the tension applied to the transfer tape T is designed to be large, the change in the tension of the transfer tape T between the initial stage of use and the end of use can be reduced. However, if the outer diameter of the feeding core is increased, there is a problem that the coating film transfer tool becomes large.

In order to solve such a problem, Patent Document 1 and Patent Document 2 have proposed a coating film transfer tool that shortens the distance between the axes of the feeding core and the winding core by the pressing force applied to the transfer head. There is. As the distance between the axes of both cores becomes shorter, the tension of the belt decreases. Therefore, in these coating film transfer tools, the tension of the transfer tape is relaxed and lightly pressed by pressing the transfer head when transferring the coating film. It can be transferred by operation. As a result, the difference in tension applied to the transfer tape between the initial stage of use and the final stage of use can be reduced.

However, in the coating film transfer tools of Patent Document 1 and Patent Document 2, it is necessary to provide a complicated mechanism in order to shorten the distance between the axes of the feeding core and the winding core. Further, in the methods of Patent Document 1 and Patent Document 2, the tension of the transfer tape can be relaxed only in the coating film transfer tool of the type in which the feeding core and the winding core are interlocked and rotated by the belt, and the feeding core is fed by a gear or the like. It could not be applied to a coating film transfer tool that rotates the take-up core in conjunction with it.

JP-A-2002-283795 Japanese Unexamined Patent Publication No. 2009-285883

In the present invention, what is the interlocking form of the feeding portion of the transfer tape and the winding portion of the base material tape after the coating film transfer without using a complicated structure and without increasing the size of the coating film transfer tool. However, by means that can be applied, the change in tension of the transfer tape from the initial stage of use to the end of use of the coating film transfer tool is alleviated, and there is no coating film transfer defect due to insufficient tension of the transfer tape at the initial stage of use. Moreover, it is an object of the present invention to provide a coating film transfer tool in which the change in the operation feeling of the user from the initial stage of use to the final stage of use is small.

In the first invention, the transfer tape is fed out from a feeding pancake in which a transfer tape having a coating film laminated on a base material tape is wound around a feeding core in a disk shape, and the coating film is pressed against a transfer target by a transfer head. It is a coating film transfer tool that winds the base material tape after coating film transfer to the winding core by interlocking and rotating the feeding core and the winding core, and winds the base tape around the feeding core to make a disk. It is a coating film transfer tool provided with a braking member that contacts the disk-shaped end surface of the shaped pancake and applies a braking force to the transfer tape that is fed from the pancake.

The second invention is the coating film transfer tool according to the first invention, wherein the contact surface of the brake member with the feeding pancake is made of soft urethane foam.

The third invention is a plate-shaped member close to the disk-shaped end face on the side opposite to the disk-shaped end face of the feeding pancake with which the brake member comes into contact, and together with the feeding core when the transfer tape is fed. The coating film transfer tool according to the first or second invention, which has a rotating plate-shaped member.

In the fourth invention, the coating film transfer tool according to any one of the first to third inventions, wherein the interlocking rotation mechanism for interlocking and rotating the feeding core and the winding core is a belt.

In the fifth invention, the coating film transfer tool according to any one of the first to third inventions, wherein the interlocking rotation mechanism for interlocking and rotating the feeding core and the winding core is a gear.

In the coating film transfer tool of the present invention, as the transfer tape is fed from the feeding core, the area of the feeding pancake that comes into contact with the brake member decreases, so that the tension of the transfer tape generated by the braking member is large at the initial stage of use. , It becomes smaller toward the end of use. In the state where the brake member is not provided, only the tension that increases from the initial stage of use to the end of use is applied to the transfer tape. By pressing the feeding pancake with the brake member, the tension applied to the transfer tape T is the sum of the tension increasing from the initial stage of use to the end of use and the tension decreasing from the initial stage of use to the end of use. Therefore, by providing the brake member, it is possible to reduce the change in tension applied to the transfer tape T from the initial stage of use to the final stage of use. Further, since the tension applied to the transfer tape at the end of use can be increased without increasing the tension applied to the transfer tape at the end of use, the coating film at the initial stage of use can be applied without changing the operation feeling of the user at the end of use. It is possible to prevent the problem of poor film breakage. Further, in the coating film transfer tool of the present invention, the tension change applied to the transfer tape T from the initial stage of use to the end of use can be reduced only by providing the brake member, so that a complicated structure is not used. Moreover, the coating film transfer tool does not become large. Further, in the coating film transfer tool of the present invention, it is possible to reduce the change in tension applied to the transfer tape T from the initial stage of use to the final stage of use simply by providing a brake member on the side of the feeding core for feeding the transfer tape. Therefore, it can be applied to any interlocking form of the feeding portion of the transfer tape and the winding portion of the base material tape after the coating film is transferred.

The coating film transfer tool A of the 1st Embodiment of this invention is shown. The coating film transfer tool B of the 2nd Embodiment of this invention is shown. The coating film transfer tool C of the 3rd Embodiment of this invention is shown. It is a schematic diagram which shows the method of measuring the deformation amount and the repulsive force of a soft urethane foam. It is a graph which shows the relationship between the amount of deformation of a soft urethane foam, and the repulsive force. It is a figure which shows the tape width of the transfer tape T, and the core width of the feeding core 2. The conventional coating film transfer tool 1 is shown. A schematic diagram showing a breakage of the transfer coating film is shown. It is a figure which shows the use state (angle) of the coating film transfer tool in the measurement of a transfer pressing force. The coating film transfer tool D of the 4th embodiment of this invention is shown. It is a figure which shows the method of measuring the tension of the transfer tape T.

FIG. 1 shows the coating film transfer tool A according to the first embodiment of the present invention. FIG. 1A is a front view with the cover removed. FIG. 1A shows an imaginary line of the outer shape of the brake member attached to the cover in order to show the positional relationship between the brake member attached to the cover and the feeding pancake in which the transfer tape is wound around the feeding core. It is indicated by (two-dot chain line) and the brake member is indicated by cross-hatching. FIG. 1A shows an initial state in which the transfer tape T wound around the feeding core 2 is unused and the outer diameter of the feeding pancake is large. FIG. 1B is a cross-sectional view taken along the line YY of FIG. 1A. 1 (c) is also a YY cross-sectional view of FIG. 1 (a), but while FIG. 1 (b) shows an initial state of use, FIG. 1 (c) shows a state at the end of use. Is shown.

The coating film transfer tool A includes a case 5, a cover 6, a transfer tape T in which the coating film is laminated on a base material tape, a feeding core 2 in which the transfer tape T is wound around, and a coating film laminated on the transfer tape T on paper. The transfer head 4 is transferred to the transfer target, the take-up core 3 for winding the base material tape after the coating film is transferred, the feeding core 2 and the pulleys provided on the take-up core 3 are hung around the transfer head 4. A belt 7 that transmits the rotation of the feeding core 2 to the winding core 3 and a brake that is attached to the cover with double-sided tape and presses the disk-shaped end face of the feeding pancake in which the transfer tape T is wound around the feeding core 2 in a disk shape. It is composed of a member 8.

In this example, the belt (O-ring) 7 is used as the interlocking method for transmitting the rotation of the feeding core 2 to the winding core 3, but interlocking with gears or the like is also possible, and there is no particular limitation. Further, in this example, the slip mechanism for absorbing the peripheral speed difference between the take-up side and the take-out side also uses the slip between the belt 7, the take-out core 2 and the pulleys provided on the take-up core 3, but the slip ring , A slip mechanism using a coil spring, a resin spring, or the like can also be used, and the method is not particularly limited.

The material of the brake member 8 used for the coating film transfer tool A comes into contact with the disk-shaped end face of the feeding pancake with a pressing force that does not deform the feeding pancake around which the transfer tape T is wound, and tensions the transfer tape T. As long as it can be loaded, it is not particularly limited. The material of the brake member 8 is preferably soft urethane foam from the viewpoint of the relationship between the amount of deformation and the generated load and the state of the surface in contact with the feeding pancake. The flexible urethane foam is classified into polyester urethane foam and polyether urethane foam, both of which can be suitably used for the brake member 8 of the present invention.

As shown in FIG. 6, the feeding pancake of the coating film transfer tool A is usually obtained by winding the transfer tape T around the feeding core 2 having a core width wider than the tape width of the transfer tape T. When the core width of the feeding core 2 is smaller than the tape width of the transfer tape T, a part of the transfer tape T protrudes from the feeding core 2 and is wound around the feeding core 2. If a part of the transfer tape T protrudes from the feeding core 2 and is wound around the feeding core 2, the feeding pancake is disturbed, and the transfer tape fed from the feeding pancake causes a running failure. , It may cause problems such as scratches on the coating film on the transfer tape T. In the transfer tape T of the portion wound on the feeding core 2, the tension of the transfer tape T is received by the outer circumference of the feeding core 2, whereas the tension of the transfer tape T protruding from the feeding core 2 is fed. It is not received on the outer circumference of the core 2. Therefore, the innermost peripheral portion of the transfer tape T protruding from the feeding core 2 is bent inward from the outer circumference of the feeding core 2. In this way, different forces act on the transfer tape T with the end face portion of the feeding core 2 which is the boundary between the portion not protruding from the feeding core and the protruding portion being sandwiched. Therefore, the coating film on the transfer tape T at the end face portion of the feeding core 2 may be scratched. With correction tape or the like having a soft coating film, scratches are likely to occur on the coating film, while the coating film is transferred to a portion that is visible to the human eye, so that scratches on the coating film become a problem.

In order to prevent such a problem, the core width of the feeding core 2 is usually designed to be about 1 mm larger than the width of the transfer tape T. Further, transfer tapes T having a plurality of widths may be stored in the same coating film transfer tool. In such a case, the feeding core 2 for the widest transfer tape T may be shared and used. There are many. Since the feeding core 2 is often a resin molded product and it is uneconomical to manufacture a mold for each width of the transfer tape T, the feeding core 2 for the widest transfer tape T is shared. Often used. In this case, the width of the core of the feeding core 2 is matched with the widest transfer tape T. Therefore, in the other narrow transfer tape T, the core width of the feeding core 2 and the tape width of the transfer tape T are used. The difference is even greater. As described above, in the feeding pancake used for the coating film transfer tool, the width of the feeding core 2 is generally larger than the width of the transfer tape T, so that the transfer tape T is within the width of the feeding core 2. The position to wind the pancakes fluctuates.

Further, as described above, in the case of a soft coating film such as correction tape, the feeding pancake cannot be wound hard by applying a large tension as compared with the transfer tape having a hard coating film. This is because if the unrolled pancake is wrapped tightly, the coating film may be cut off or the coating film may be lifted from the base tape. Therefore, in the case of a transfer tape T having a soft coating film such as correction tape, the transfer tape T is wound around the feeding core 2 with the tension applied to the transfer tape T reduced to produce a feeding pancake. .. The unrolled pancake that is wound with a small tension becomes a so-called loosely wound unrolled pancake. When the loosely wound pancake is pressed from the disk-shaped end face of the pancake, the transfer tape T moves with respect to the pancake, and the pancake is easily deformed. Therefore, the force with which the brake member 8 presses the disk-shaped end face of the feeding pancake needs to be weak enough not to deform the feeding pancake. Therefore, the brake member 8 must surely apply the braking force to the feeding pancake only by contacting with such a weak force.

In this way, the brake member 8 used for the coating film transfer tool A changes the position where the transfer tape T is wound within the width of the feeding core 2, so that the position of the brake member 8 changes reliably with the disk-shaped end face of the feeding pancake whose position changes. Tension must be reliably applied to the transfer tape T delivered from the feeding pancake only by contacting and pressing the disk-shaped end face of the feeding pancake with a weak force.

In order to satisfy the properties required for the brake member 8, it is preferable to use soft urethane foam as the material of the brake member 8. As shown in FIG. 4, the graph of FIG. 5 shows the results of measuring the amount of deformation of the soft urethane foam and the repulsive force of the soft urethane foam by pressing the soft urethane foam using a load cell.

The graph of FIG. 5 shows the correlation between the amount of deformation in the thickness direction and the repulsive force of two polyester urethane foams having the same planar shape but different thickness. One has a thickness of 4 mm and the other has a thickness of 6 mm. As shown in the graph, in the range where the deformation amount is smaller than a certain value, the deformation amount and the repulsive force of the polyester urethane foam show a proportional relationship, and the increase in the repulsive force with the increase in the deformation amount is small. Therefore, when these polyester urethane foams are used as the brake member 8, the amount of deformation of the polyester urethane foam, which is the brake member 8, has a proportional relationship with the brake member 8 set in the coating transfer tool A. It is preferable that the increase in the repulsive force due to the increase in the amount of deformation is close to the intermediate value of a small range (hereinafter, this range is referred to as a stable repulsive force range).

The brake member 8 preferably has a stable repulsive force range larger than the amount of fluctuation in the disk-shaped end face position of the feeding pancake. When such a brake member 8 is set on the coating film transfer tool A so that the amount of deformation is close to the intermediate value of the repulsive force stable range, even if the position of the disk-shaped end face of the feeding pancake fluctuates, the brake member 8 is used. 8 is surely in contact with the disk-shaped end face of the feeding pancake. Further, even if the position of the disk-shaped end face of the feeding pancake fluctuates, the force with which the brake member 8 presses the disk-shaped end face of the feeding pancake does not change significantly, so that the tension of the transfer tape T delivered from the feeding pancake does not change significantly. Does not change significantly. Furthermore, even if the position of the disk-shaped end face of the feeding pancake fluctuates, the force with which the brake member 8 presses the disk-shaped end face of the feeding pancake does not suddenly increase, so that the feeding pancake is the brake member 8. It does not deform due to the pressing force of.

As shown in the graph of FIG. 5, when the soft urethane foam is used with a deformation amount larger than the repulsive force stable range, the repulsive force of the soft urethane foam rapidly increases. If the brake member 8 is attached to the coating film transfer tool A in such a state, the tension of the transfer tape T becomes too large, and the transfer tape may be stretched or may not be able to be fed out, resulting in running defects. is there. Further, if the soft urethane foam is held for a long period of time with a deformation amount larger than the repulsive force stable range, the repulsive force is greatly reduced due to plastic deformation and / or the surface state is changed, and the friction coefficient of the surface is increased. It can change significantly. Therefore, when the brake member is attached to the coating film transfer tool A and used with a deformation amount larger than the repulsive force stable range, the tension of the transfer tape becomes a value different from the initial value due to a change with time. Therefore, from this point as well, it is preferable that the amount of deformation of the elastic member 8 mounted in the coating film transfer tool A is used within the range of the repulsive force stable range.

When the position of the disk-shaped end face of the feeding pancake fluctuates greatly, it is preferable to use a thick soft urethane foam as the brake member 8. As shown in the graph of FIG. 5, of the polyester urethane foam having a thickness of 4 mm and the thickness of 6 mm, the polyester urethane foam having a thickness of 6 mm has a longer repulsive force stable range. Therefore, even if the position of the disk-shaped end face of the feeding pancake fluctuates greatly, if the thick soft urethane foam is used as the brake member 8, the pressing force that the brake member 8 presses against the disk-shaped end face of the feeding pancake is applied. Since the fluctuation can be reduced, the fluctuation of the tension of the transfer tape T can be reduced.

Since the surface of the soft urethane foam is mesh-like, it is difficult to stick to the feed pancake even if it is used as the brake member 8 and remains in contact with the disk-shaped end face of the feed pancake for a long period of time. Although the soft urethane foam is not a completely elastic member, the repulsive force does not decrease significantly with time when used within the repulsive force stable range. Therefore, when the flexible urethane foam is used for the brake member 8, the change in tension of the transfer tape T with time can be reduced.

In the coating film transfer tool A, the brake member 8 is used by being attached to the inner surface of the cover 6 with double-sided adhesive tape or the like, but the method of attaching the brake member is not limited to the attachment, and there is a problem in braking performance. If not, any method can be used. When the cover 6 with the brake member 8 attached at the predetermined position is attached to the case 5 in which the feeding pancake is attached at a predetermined position, the brake member 8 is deformed while being pressed against the disk-shaped end face of the feeding pancake. It is mounted in the coating film transfer tool A.

In the coating film transfer tool A, the brake members 8 are attached at two places, but the number of the brake members 8 is not particularly limited. When a plurality of brake members 8 are provided, it is preferable to provide the brake members 8 at equal angular intervals on the circumference of the feeding pancake. By providing the pancakes at equal angles, the contact state between the pancakes and the brake members is stable, and the tension of the transfer tape T fed from the pancakes is also stable. As described above, the amount of deformation of the brake member 8 is preferably used near the intermediate value of the repulsive force stable range. Therefore, it is not preferable to adjust the braking force of the brake member 8, that is, the tension of the transfer tape T delivered from the feeding core 2, by the amount of deformation of the braking member 8. The tension of the transfer tape T is preferably adjusted by the contact area of the brake member 8 with the feeding pancake and the contact shape.

The pressing force that the brake member 8 presses on the payout pancake can be expressed by the product of the repulsive force per unit area of the brake member 8 and the area where the brake member 8 is in contact with the payout pancake. On the other hand, the brake torque applied to the payout pancake by the brake member 8 is the pressing force of the brake member 8 pressing the payout pancake and the brake member 8 pressing the payout pancake from the rotation center of the payout pancake. It is the product of the distance to the place where you are. Therefore, the brake torque Tr applied to the feeding pancake by one brake member 8 is obtained from the total P of the pressing force by which one brake member 8 presses the feeding pancake and the rotation center of the feeding pancake. It is the product of the distance L to the center of gravity of the shape in which one brake member 8 presses the feeding pancake.

Of the tension of the transfer tape T delivered from the payout pancake, the tension Te generated when one brake member 8 presses the payout pancake is a brake applied to the payout pancake by one brake member 8. It is a value obtained by dividing the torque Tr by the radius R of the feeding pancake. Therefore, when this relationship is expressed by an equation, it becomes as shown in the following equation 1.
Te = Tr / R = P ・ L / R ... (Equation 1)

As the radius R of the pancakes delivered decreases from the beginning of use to the end of use, the denominator of Equation 1 decreases. However, as the radius R of the payout pancake decreases, the total pressing force P of one brake member 8 pressing the payout pancake and the one brake member 8 payout from the rotation center of the payout pancake. The distance L to the center of gravity of the shape pressing the pancake decreases together. Therefore, from the initial stage of use to the end of use, the numerator of formula 1 decreases more than the denominator of formula 1. Therefore, in the coating film transfer tool A, the tension Te generated by pressing the feeding pancake by one brake member 8 decreases from the initial stage of use to the final stage of use.

In this way, the tension Te generated by pressing the feeding pancake by one brake member 8 is the total P of the pressing force by which one braking member 8 presses the feeding pancake, and the rotation of the feeding pancake. It is affected by the distance L from the center to the center of gravity of the shape in which the one brake member 8 presses the feeding pancake. Therefore, by changing the shape of the brake member 8, the change in tension Te generated by pressing the feeding pancake by one brake member 8 from the initial use to the final use can be easily adjusted.

FIG. 2 shows a coating film transfer tool B according to a second embodiment of the present invention. FIG. 2A is a front view with the cover removed. In FIG. 2A, the outer shape of the brake member attached to the cover is imagined in order to show the positional relationship between the brake member attached to the cover and the feeding pancake of the transfer tape wound around the feeding core. It is indicated by a line (two-dot chain line) and the brake member is indicated by cross-hatching. FIG. 2A shows an initial state in which the transfer tape T wound around the feeding core 2 is unused and the outer diameter of the feeding pancake is large. FIG. 2B is a cross-sectional view taken along the line YY of FIG. 2A. 2 (c) is also a YY cross-sectional view of FIG. 2 (a), but while FIG. 2 (b) shows an initial state of use, FIG. 2 (c) shows a state at the end of use. Is shown.

The coating film transfer tool B is a plate-shaped member close to the disk-shaped end face on the side opposite to the disk-shaped end face of the feeding pancake with which the brake member 8 contacts, and together with the feeding core when the transfer tape T is fed. It is the same as the coating film transfer tool A except that the flange 2A, which is a rotating plate-shaped member, is provided.

In the coating film transfer tool B, the flange 2A is integrally molded with the feeding core 2, but may be a separate component as long as it can be attached to the feeding core 2 and rotated together with the feeding core 2. By providing this flange, even if a feeding pancake that is loosely wound and easily deformed is used, the feeding pancake does not further deform when it comes into contact with the flange. Therefore, in the coating film transfer tool B, a feeding pancake that is loosely wound and easily deformed can be used, and the tension fluctuation of the transfer tape T due to the deformation of the feeding pancake can be surely reduced.

As described above, since the purpose of providing the flange 2A is to prevent the feeding pancake from being deformed by the pressing force of the brake member 8, it is preferable that the distance between the feeding pancake and the flange 2A is small. In the design of the coating film transfer tool, the distance between the reference surface and the flange 2A facing the feed pancake is preferably 0 mm or more and 2 mm or less, preferably 0 mm or more, with the position of the disk-shaped end face of the feed pancake as the reference surface. 1 mm or less is more preferable.

FIG. 3 shows a coating film transfer tool C according to a third embodiment of the present invention. FIG. 3A is a front view with the cover removed. In FIG. 3A, an imaginary line (2) shows the outer shape of the brake member attached to the cover in order to show the positional relationship between the brake member attached to the cover and the feeding pancake wound around the feeding core. It is indicated by a dotted line) and the brake member is indicated by cross-hatching. FIG. 3A shows an initial state in which the transfer tape T wound around the feeding core 2 is unused and the outer diameter of the feeding pancake is large. FIG. 3B is a cross-sectional view taken along the line YY of FIG. 3A. 3 (c) is also a YY cross-sectional view of FIG. 3 (a), but while FIG. 3 (b) shows an initial state of use, FIG. 3 (c) shows a state at the end of use. Is shown.

In the coating film transfer tool A, the feeding core 2 and the winding core 3 are interlocked and rotated by the belt 7, whereas in the coating film transfer tool C, the feeding core 2 and the winding core 3 are interlocked and rotated by gears. In the coating film transfer tool A, the belt 7 is hung around the pulleys provided on the feeding core 2 and the winding core 3, whereas in the coating film transfer tool C, the gear and the winding on the feeding core 2 side are wound. By interlocking rotation of the gear on the core 3 side, the feeding core 2 and the take-up core 3 are interlocked and rotated.

In the coating film transfer tool C, the feeding core 2 is composed of two parts, a punk core 2B and a feeding gear 2C. The feeding gear 2C is composed of a gear portion that meshes with the gear provided on the take-up core 3 and a shaft portion that is inserted into the inner peripheral portion of the pancake core 2B. The tip of the shaft is divided into four parts in the circumferential direction, and when the shaft is inserted into the inner circumference of the pancake core 2B, the tip of the shaft is elastically deformed inward and the shaft The tip portion presses the inner circumference of the pancake core 2B.

Since the tip portion of the shaft portion presses the inner circumference of the pancake core 2B, when the pancake core 2B tries to rotate with respect to the feeding gear 2C, a braking force that hinders the rotation of the pancake core 2B is generated. In the coating film transfer tool C, the tension of the transfer tape T unwound from the pancake core 2B can be adjusted by adjusting the braking force that hinders the rotation of the pancake core 2B. In the coating film transfer tool A, the difference in peripheral speed between the take-up side and the take-out side uses the slip between the belt 7 and the pulley provided on the take-out core 2 and / or the take-up core 3. In the coating film transfer tool C, the sliding between the inner circumference of the pancake core 2B and the shaft portion of the feeding gear 2C is used. Further, in the coating film transfer tool A, since the feeding core 2 and the winding core 3 are interlocked and rotated by the belt 7, the feeding core 2 and the winding core 3 rotate in the same direction, whereas the coating film transfer is performed. Since the tool C rotates in conjunction with the gear, the take-up core 3 rotates in the direction opposite to that of the take-out core 2 to take up the base material tape after the coating film is transferred.

The interlocking mechanism between the feeding core 2 and the winding core 3 uses gears, the feeding core 2 is composed of the pancake core 2B and the feeding gear 2C, and the rotation of the feeding core 2 and the winding core 3 The coating film transfer tool C is the same as the coating film transfer tool A except that the directions are opposite to each other.

FIG. 10 shows a coating film transfer tool D according to a fourth embodiment of the present invention. FIG. 10A is a front view with the cover removed. In FIG. 10A, an imaginary line (2) shows the outer shape of the brake member attached to the cover in order to show the positional relationship between the brake member attached to the cover and the feeding pancake wound around the feeding core. It is indicated by a dotted line) and the brake member is indicated by cross-hatching. FIG. 10A shows an initial state in which the transfer tape T wound around the feeding core 2 is unused and the outer diameter of the feeding pancake is large. FIG. 10B is a cross-sectional view taken along the line YY of FIG. 10A, showing a state immediately before the cover 6 is attached to the case 5. Both FIGS. 10 (a) and 10 (b) show the initial state of use.

The coating film transfer tool D is the same as the coating film transfer tool A except that the shape of the brake member 8 is different. The surface shape of the surface of the brake member of the coating film transfer tool D to be attached to the cover 6 is the same as that of the brake member of the coating film transfer tool A. The brake member 8 of the coating film transfer tool D is different from the brake member 8 of the coating film transfer tool A in that the thickness of the brake member 8 is not constant but changes. As shown in FIG. 10B, the thickness of the brake member 8 of the coating film transfer tool D is such that the portion in contact with the outer peripheral portion of the feeding pancake is thick and toward the portion in contact with the inner peripheral portion of the feeding pancake. It's getting thinner.

By making the thickness of the brake member 8 thinner from the portion in contact with the outer peripheral portion of the feeding pancake toward the portion in contact with the inner peripheral portion of the feeding pancake, the coating film transfer tool D transfers the coating film. Compared with the tool A, the difference in the tension of the transfer tape T generated by the brake member 8 between the initial stage of use and the final stage of use can be increased.

As described above, the amount of deformation of the brake member 8 is preferably near the intermediate value of the repulsive force stable range. It is preferable that the amount of deformation of the brake member 8 of the coating film transfer tool D is within the repulsive force stable range in both the thinnest portion and the thickest portion.

Further, in the brake member 8 of the coating film transfer tool D, it is preferable that the amount of deformation of the portion having the median thickness is near the intermediate value of the repulsive force stable range.

As described above, in the brake member 8 of the coating film transfer tool D, although the thickness changes, the amount of deformation of the thickness when set in the coating film transfer tool is the repulsive force in all the portions. It is preferably within the stable range. Therefore, if it is possible in designing the coating film transfer tool, it is particularly preferable to use the brake member 8 having a large thickness in the coating film transfer tool D. As described above, the thicker the brake member 8, the wider the repulsive force stable range. Therefore, in the brake member 8 of the coating film transfer tool D, the amount of deformation is increased for both the thinnest portion and the thickest portion. This is because it becomes easy to keep the repulsive force within the stable range.

As Examples 1 to 4 of the present invention, the coating film transfer tools A, B, C and D of the first to fourth embodiments of the present invention shown in FIGS. 1 to 3 and 10 were prepared. Further, as Comparative Examples 1 and 2, a coating film transfer tool a in which the brake member 8 was removed from the coating film transfer tool A and a coating film transfer tool b in which only the belt used was different from the coating film transfer tool a were prepared. As the brake member 8, a maltoprene SM manufactured by Inoac Corporation cut into a predetermined shape was used. As the transfer tape, a correction tape having a width of 5 mm and a length of 10 m was used. Further, the brake members 8 of Examples 1 to 3 were made of the same material as those used for the measurement shown in the graph of FIG. 5, and had a thickness of 6 mm. Only the thickness of the brake member 8 of the fourth embodiment is different from that used in the first to third embodiments. The thickness of the portion near the outer circumference of the feeding pancake is 7 mm, and the thickness is near the inner circumference of the feeding pancake. The thickness of the portion was 5 mm, and the thickness changed at a constant rate from the portion near the outer circumference to the portion toward the inner circumference. Further, the amount of deformation of the brake member 8 of Examples 1 to 3 in the state of being set in the coating film transfer tool was 1.5 mm, which is an intermediate value of the repulsive force stable range. The amount of deformation of the brake member 8 of Example 4 in the state of being set in the coating film transfer tool is such that the amount of deformation of the portion having a thickness of 6 mm, which is the median value of the thickness, is an intermediate value of the repulsive force stable range. It was set to a certain 1.5 mm.

A belt used for the coating film transfer tools A, B, D, and a An O-ring having substantially the same tension when applied to the feeding core and the winding core in the coating film transfer tool was used. Only the belt used for the coating film transfer tool b was used so that the tension when applied to the feeding core and the winding core in the coating film transfer tool was about twice that of the other O-rings. A spring tester (model number SPD-5M-2194) manufactured by Sunagawa Seiki Co., Ltd. was used for measuring the tension of the O-ring. The O-ring was hung between predetermined hooks and pulled to the length when it was hung on the feeding core and the winding core in the coating film transfer tool 1, and the tension of the O-ring at that time was measured.

The following evaluations were made using the coating film transfer tools of Examples 1 to 4 and Comparative Examples 1 and 2.
(1) Tension at the initial stage of use of the transfer tape T As shown in FIG. 11, the transfer tape T is pulled out from the coating film transfer tool, and the transfer tape T connected to the winding core is sufficiently loosened. And the dial tension gauge is connected with a thread and a W clip, and the winding core 3 is fixed so as not to rotate, and the dial tension gauge is moved at 20 mm / sec to feed the transfer tape T from the feeding core. The tension of the transfer tape T was measured. As the dial tension gauge, DTN-50 manufactured by Teclock Co., Ltd. was used.
(2) Cutability of the coating film at the initial stage of use The cutting property of the coating film when the coating film is transferred to the transfer target (PPC paper) at the angle shown in FIG. 9 and the coating film transfer tool is pulled up from the transfer target is as follows. Visual evaluation was performed according to the criteria of.
: As shown in FIG. 8A, the transfer tape was sufficiently tensioned to shear the coating film, so that the coating film was cut well.
X: As shown in FIG. 8B, the transfer tape was not sufficiently tensioned, so that the coating film was poorly cut.
(3) Measurement of Transfer Pressing Pressure The transfer pressing force of the transfer head when the coating film was transferred to the transfer target (PPC paper) at the angle shown in FIG. 9 was measured with a scale with a pedestal. The measurement was made at two points, the initial stage of use and the final stage of use. Here, the transfer pressing force indicates the minimum load required to press the transfer head against the transfer target in order to pull out the transfer tape.
(4) Transfer Runnerability of Transfer Tape The entire length of the transfer tape was transferred at a transfer rate of 50 mm / sec while the user was holding the coating film transfer tool by hand, and the transfer runnability of the transfer tape was evaluated.
◯: The running performance of the transfer tape was stable over the total length.
Δ: The transfer tape was slack at the initial stage of use, and it was difficult to feed the transfer tape at the end of use.
X: The running performance of the transfer tape was unstable over the entire length.

The evaluation results are as shown in Table 1. Compared with the coating film transfer tools of Comparative Examples 1 and 2, the coating film transfer tools of Examples 1 to 4 had a smaller difference in transfer pressing force between the initial stage of use and the use cycle. The coating film transfer tools of Examples 1 to 4 had better cutability of the coating film at the initial stage of use as compared with Comparative Example 1. Further, in the coating film transfer tool of Comparative Example 2, the transfer pressing force at the end of use was large and it became difficult to feed the transfer tape, whereas in the coating film transfer tools of Examples 1 to 4, the transfer tape was used even at the end of use. It was easy to pay out.

1, A, B, C, D, a, b: Coating film transfer tool 2: Feeding core 2A: Flange 2B: Pankey core 2C: Feeding gear 3: Winding core 4: Transfer head 5: Case 6: Cover 7 : Belt 8: Brake member 12, 14: Support shaft T: Transfer tape

Claims (5)

The transfer tape is fed out from a feeding pancake in which a transfer tape having a coating film laminated on a base material tape is wound around a feeding core in a disk shape, and the coating film is pressed against a transfer target by a transfer head to transfer the coating film. A coating film transfer tool that winds the base material tape after coating film transfer to the winding core by interlocking rotation of the feeding core and the winding core, and is wound around the feeding core to form a disk shape. A coating film transfer tool provided with a braking member that comes into contact with the disk-shaped end surface of the feeding pancake and applies a braking force to the transfer tape that is fed from the feeding pancake. The coating film transfer tool according to claim 1, wherein the contact surface of the brake member with the feeding pancake is made of soft urethane foam. A plate-shaped member that is close to the disk-shaped end face on the side opposite to the disk-shaped end face of the feeding pancake that the brake member comes into contact with, and that rotates together with the feeding core when the transfer tape is fed. The coating film transfer tool according to claim 1 or 2. The coating film transfer tool according to any one of claims 1 to 3, wherein the interlocking rotation mechanism for interlocking and rotating the feeding core and the winding core is a belt. The coating film transfer tool according to any one of claims 1 to 3, wherein the interlocking rotation mechanism for interlocking and rotating the feeding core and the winding core is a gear.

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