JP2014136309A - Coating film transfer implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating film transfer implement which, in the middle to final stage of operation of the coating film transfer implement, relaxes tension of a transfer tape during coating film transfer to allow transfer of a coating film with a lighter pressing pressure and prevent poor running of the transfer tape.SOLUTION: A coating film transfer implement delivers a transfer tape from a delivery core wound with the transfer tape in which a coating film is formed on a substrate tape, transfers the coating film to a to-be-transferred object by pressing the coating toward the object with a transfer head, and takes up the substrate tape after transfer of the coating film around a take-up core by rotating the delivery core and the take-up core in an interlocked way by means of a belt laid between the delivery core and the take-up core. The coating film transfer implement is characterized by the features: (a) the coating film transfer implement has tension increasing means of increasing the tension beyond the tension P of a belt laid between both the cores; and (b) the tension increasing means is released when a pressing force is applied to the transfer head during coating film transfer. The release of the tension increasing means returns the tension of the belt to the tension P.

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 film, a decorative coating film, and the like to a transfer target, and in particular, a feeding core and a winding core are belts. Belongs to the technical field of belt-driven coating film transfer tools that can be rotated in conjunction with each other.

FIG. 5 is a schematic front view for explaining the configuration of the conventional coating film transfer tool 1. The coating film transfer tool 1 includes a case 7 having support shafts 12 and 14, a transfer head 4 projecting outward from the case 7, a feeding core 2 and a take-up core rotatably held by the support shafts 12 and 14. 3 and a transfer tape T having a coating film coated on the surface of the base tape, and the opening of the case 7 is covered with a cover (not shown). The transfer tape T is wound around the feeding core 2, and the transfer tape T drawn from the feeding core 2 is separated into a coating film and a base tape in the transfer head 4, and the coating film is transferred to the transfer object, Only the base tape is wound around the winding core 3. Belts X are hung on the cores 2 and 3 so that the feeding core 2 and the winding core 3 rotate in conjunction with each other.

In the coating film transfer tool 1, both cores 2 and 3 are rotated so that the winding length of the base tape is longer than the feeding length of the transfer tape when the coating film is transferred, and an appropriate tension is applied to the transfer tape T. As a result, the transfer tape T is not loosened. At the end of use of the transfer tape, the outer diameter of the pancake of the transfer tape wound around the feeding core is reduced, so that a large tension is applied to the transfer tape. In this case, a slip is generated between the belt X and the winding core 3 to release the tension applied to the transfer tape T. The torque when the belt and the winding core slip is called “slip torque”. In addition, when the transfer tape is not used and the outer diameter of the transfer tape pancake of the feeding core is large, it is called “initial use”, and the outer diameter of the transfer tape pancake of the feeding core is reduced by using the transfer tape. The state is called “end of use”.

FIG. 6 is an enlarged view of a transfer head portion immediately after completion of coating film transfer. FIG. 6A shows a state where an appropriate tension is applied to the transfer tape. FIG. 6B shows a state where the transfer tape is loose. As shown in FIG. 6 (a), when an appropriate tension is applied to the transfer tape, the coating film cuts right after the transfer is completed. However, as shown in FIG. 6 (b), the transfer is performed at the transfer head portion. If the tape is loosened, the coating film will be cut off and good transfer cannot be performed. Therefore, the slip torque is designed so that the transfer tape does not loosen in a normal coating film transfer tool.

As described above, in the conventional coating film transfer tool 1, a large tension is applied to the transfer tape at the end of use. In this case, when the coating film is transferred to the transfer target, it is necessary to press the transfer head strongly against the transfer target to perform the transfer operation. Depending on the user, a problem of transfer failure has occurred.

Therefore, it is conceivable to design a slip torque to be small so that a large tension is not applied to the transfer tape even at the end of use. For example, if the slip torque is reduced to such an extent that the transfer tape can be pulled out with a small force from the beginning to the end of use, there arises a problem that the transfer tape is loosened at the beginning of use. When the transfer tape is loosened at the transfer head portion, as shown in FIG. 6B, there arises a problem that the cut of the coating film immediately after the end of transfer is deteriorated.

On the other hand, if the outer diameter of the feeding core is sufficiently large, the difference between the pancake outer diameters of the feeding core in the initial stage and the end of use can be reduced. The increase in the tension of the transfer tape can be suppressed by reducing the difference in pancake outer diameter. However, when the outer diameter of the feeding core is increased, there is a problem that the coating film transfer tool is enlarged.

In order to solve such problems, Patent Document 1 and Patent Document 2 propose a coating film transfer tool that shortens the distance between the feeding core and the winding core by the pressing force applied to the transfer head. . Since the belt tension decreases when the distance between the axes of both cores is shortened, these coating film transfer tools relieve the tension of the transfer tape by pressing the transfer head when transferring the coating film. Can be transferred by operation.

However, in the coating film transfer tool of Patent Document 1 and Patent Document 2, the feeding core or the winding core moves in order to shorten the distance between the axes of the feeding core and the winding core. There were problems as shown in b).
(A) The tape route length along which the transfer tape runs from the feeding core to the winding core changes due to the movement of the core. For this reason, the transfer tape may be loosened, causing the transfer tape to run poorly.
(A) When the core is moved, the core may be tilted, and the transfer tape may be disturbed by the winding core, and the transfer tape may cause poor running.

Japanese Patent Laid-Open No. 2002-28395 JP 2009-285883 A

The present invention reduces the tension of the transfer tape during transfer of the coating film from the middle to the end of use of the coating film transfer tool, enables the coating film to be transferred with a light pressing force, and prevents the transfer tape from running poorly. An object is to provide a transfer tool.

In the first invention, the transfer tape is fed out from a feeding core in which a transfer tape provided with a coating film is provided on a base tape, and the coating film is pressed against a transfer target with a transfer head to transfer the transfer tape. A coating film transfer tool for rotating the feeding core and the winding core in conjunction with each other by a belt hung between the winding cores, and winding the substrate tape after coating film transfer onto the winding core. ) And (a) is a coating film transfer tool.
(A) It has tension increasing means for increasing the tension more than the tension P of the belt hung between the cores.
(A) The tension increasing means is released by the pressing force applied to the transfer head during coating film transfer. By the release, the belt tension returns to the tension P.

According to a second aspect of the present invention, when the transfer head is deformed and / or moved by a pressing force applied to the transfer head, the tension increasing means is released and the tension of the belt becomes the tension P. It is the coating-film transfer tool of 1st invention.

A third invention is the coating film transfer tool according to the first or second invention, wherein an elastic body is provided as a component of the tension increasing means.

A fourth aspect of the invention is the coating film transfer tool according to the first to third aspects of the invention, wherein the tension increasing means is rotatably provided with a roller, and the belt and the roller are in contact with each other.

The coating film transfer tool of the present invention can transfer a coating film with a light pressing force, and does not cause poor running of the transfer tape.

The coating film transfer tool A of 1st Embodiment of this invention is shown. The coating film transfer tool B of 2nd Embodiment of this invention is shown. The coating film transfer tool C of 3rd Embodiment of this invention is shown. The coating film transfer tool D of 4th Embodiment of this invention is shown. It is an embodiment figure using roller R for the contact part with belt X of tension increase means. FIG. 4A is an enlarged perspective view of the roller portion. It is a figure for demonstrating the structure of the conventional coating-film transfer tool, and is a front view of the state which removed the cover. It is an enlarged view of the transfer head part immediately after the end of coating film transfer. It is a figure which shows the angle of the coating-film transfer tool with respect to a to-be-transferred object in the measurement of the transfer pressing force required in order to transfer a coating film in the use initial stage and the last stage. It is a schematic graph of the tension | tensile_strength of the transfer tape of the conventional coating film transfer tool 1 and the coating film transfer tool A which is 1st Embodiment of this invention.

In FIG. 1, the coating-film transfer tool A of 1st Embodiment of this invention is shown. FIG. 1A and FIG. 1B are front views with the cover removed. FIG. 1A shows a state when not in use. FIG. 1B shows a state in which the transfer head 4A is pressed and deformed during use, and the tension increasing means 5A moves from the direction of the transfer head 4A toward the inside of the coating film transfer tool in conjunction with the deformation. FIGS. 1C and 1D are enlarged views of the transfer head 4A portion of FIGS. 1A and 1B, respectively.

The coating film transfer tool A has the same configuration as the conventional coating film transfer tool except that a tension increasing means is provided.

The tension increasing means 5A is attached near the transfer head 4A so that it can move between the direction of the transfer head 4A and the inside direction of the coating film transfer tool. The tension increasing means is connected to the transfer head. The tension increasing means reciprocates between the direction of the transfer head and the direction inside the coating film transfer tool in conjunction with the deformation of the transfer head due to the pressing during coating film transfer.

One end inside the coating film transfer tool of the tension increasing means 5A has a T shape. In the state shown in FIG. 1A in which the transfer head is not pressed, the tension increasing means comes into contact with the belt X between the feeding core and the take-up core at two points of the T-shaped tip, and spreads the belt. The belt tension is increased. On the other hand, in the state shown in FIG. 1B where the transfer head 4A is pressed and deformed to transfer the coating film, the tension increasing means 5A does not spread the belt X.

In the state of FIG. 1 (b), the tension increasing means is released. As a result, the tension of the belt decreases and becomes P. This P is designed to be smaller than the belt tension of the conventional coating film transfer tool. As the belt tension decreases, the transfer tape tension also decreases. When the tension of the transfer tape decreases, the force for pulling out the transfer tape from the feeding core decreases. Therefore, the coating film can be transferred with a light pressing force.

After use of the coating film transfer tool, the state shown in FIG. 1A is obtained, and the tension of the belt becomes greater than the tension P by the tension increasing means. This large value is designed to be larger than the belt tension of the conventional coating film transfer tool. With this design, the tension of the transfer tape (including the tension of the base tape after the coating film is transferred) becomes larger than the tension of the transfer tape of the conventional coating film transfer tool. That is, the belt tension increases at the moment when the coating film is transferred and the transfer head is separated from the transfer target, and at the same time, the tension of the transfer tape also increases.

Further, since the core is not moved as a means for reducing the belt tension, the transfer tape does not run poorly.

FIG. 8 shows a schematic graph for comparing the tensions of the transfer tapes of the conventional coating film transfer tool 1 and the coating film transfer tool A. The horizontal axis of the graph indicates the length of the transfer tape used for the coating film transfer tool. The vertical axis of the graph represents the tension of the transfer tape. The left end of the graph is the initial use, and the right end is the end of use.

The three curves M, L, and S in the graph of FIG. 8 indicate the transition of the tension change from the initial use to the final use of the transfer tape shown below.

Curve M: Tension of the transfer tape when the conventional coating film transfer tool 1 is used.

Curve L: the tension of the transfer tape in the state of FIG. The belt tension is larger than the tension of the conventional coating film transfer tool.

Curve S: the tension of the transfer tape in the state shown in FIG. The belt tension is smaller than the tension of the conventional coating film transfer tool.

In the coating film transfer tool A, the tension of the transfer tape changes between a curve L and a curve S shown in the graph of FIG. That is, when the coating film is transferred, the transfer head is pressed and deformed, whereby the tension of the transfer tape decreases from the curve L to the curve S. When the pressing of the transfer head is released immediately after use, the curve S increases to the curve L.

If the initial value of the curve S is too small, a running failure occurs due to skewing and winding failure of the transfer tape. Therefore, the value is designed so that running failure does not occur.

In addition, as shown in the graph of FIG. 8, the tension of the transfer tape of the coating film transfer tool A is changed from L to S by pressing the transfer head against the transfer object at the end of use as in the initial use. descend. Therefore, in the coating film transfer tool A, the tension of the transfer tape can be made smaller than that of the conventional coating film transfer tool 1 even at the end of use, and the coating film can be transferred with a light pressing force.

The tension increasing means 5A and the transfer head 4A shown in FIG. The connecting portion between the tension increasing means 5A and the transfer head 4A is composed of a shaft 56A provided in the tension increasing means 5A and a long hole 44A provided in the transfer head 4A. The shaft 56A is engaged with the long hole 44A and is movable along the long hole 44A. The long hole 44A and the shaft 56A are provided at two opposite positions on the case 7A side and the cover side.

When the transfer head 4A is deformed by pressing the transfer head 4A against the transfer target, the elongated hole 44A provided in the transfer head 4A also moves accordingly. When the long hole 44A moves, the shaft 56A slides in the long hole 44A. The shape of the long hole 44A is formed so that the shaft 56A is pushed from the direction of the transfer head 4A toward the inside of the coating film transfer tool by the movement of the shaft 56A with respect to the long hole 44A. Along with the movement of the shaft 56A, the tension increasing means 5A moves from the direction of the transfer head toward the inside of the coating film transfer tool. Further, when the pressure of the transfer head 4A is released and the deformation of the transfer head 4A returns, the shaft 56A moves in the opposite direction with respect to the long hole 44A. It moves from the internal direction toward the transfer head 4A.

FIG. 2 shows a coating film transfer tool B according to the second embodiment of the present invention. 2 (a) and 2 (b) are front views with the cover removed. FIG. 2A shows a state when not in use. FIG. 2B shows a state in which the transfer head 4B is pressed and deformed during use, and the tension increasing means 5B moves from the direction of the transfer head 4B toward the inside of the coating film transfer tool in conjunction with the deformation. Yes.

In the coating film transfer tool B, a coil sling 6B that pushes the tension increasing means 5B from the inside direction of the coating film transfer tool toward the transfer head 4B is provided inside the coating film transfer tool. The transfer head 4B and the tension increasing means 5B are not connected. Other configurations are the same as those of the coating film transfer tool A.

In the coating film transfer tool B, when the transfer head 4B is pressed and deformed, the transfer head 4B presses the tension increasing means 5B, the coil spring 6B is shortened, and the belt tension is lowered.

In the coating film transfer tool B, a coil spring is used as the elastic member, but it is not particularly limited as long as it is an elastic member, and rubber or elastomer may be used.

FIG. 3 shows a coating film transfer tool C according to a third embodiment of the present invention. FIG. 3A and FIG. 3B are front views with the cover removed. FIG. 3A shows a state when not in use. FIG. 3B shows a state in which the transfer head 4C is pressed and rotationally moved during use, and the tension increasing means 5C is rotationally moved in conjunction with the rotational movement. 3 (c) and 3 (d) are enlarged views of the tension increasing means 5C portion of FIGS. 3 (a) and 3 (b), respectively.

The coating film transfer tool C is a coating film except that the shape of the tension increasing means 5C and the transfer head 4C, the shape of the case where the transfer head and the tension increasing means are attached, and an integral elastic piece are used. The configuration is the same as that of the transfer tool B.

By inserting the head mounting shaft 71C provided in the case 7C into the head mounting hole 41C, the transfer head 4C is held in the case 7C and the head mounting shaft 71C.
It can be rotated around the center. However, the rotation range is restricted by the first stopper 72C and the second stopper 75C provided in the case 7C.

By inserting the increasing means attaching shaft 73C provided in the case 7C into the increasing means attaching hole 51C, the tension increasing means 5C is held in the case 7C and can be rotated around the increasing means attaching shaft 73C. .

The tension increasing means 5C is integrally provided with an elastic piece 52C, and a first engagement piece 53C provided at the tip of the elastic piece 52C is engaged with an engagement frame 74C provided integrally with the case 7C. In the state of FIG. 3A, a force acts on the elastic piece 52C in the direction in which the elastic piece extends.
Due to this force, a counterclockwise force is acting on the tension increasing means 5C around the increasing means attaching shaft 73C. Since the second engagement piece 54C provided integrally with the tension increasing means 5C is pressed against the transfer head 4C, the state shown in FIG. 3A is maintained.

The tension increasing means 5C is integrally provided with a tension increasing rib 55C. FIG.
In the normal state shown in a), the belt X tensioned with the tension P between the feeding core and the winding core is spread by the tension increasing rib 55C, and the tension of the belt is larger than P.

When the transfer head is pressed to transfer the coating film, the tension increases as shown in FIG. 3B, and the belt tension decreases. By reducing the tension of the belt, the tension of the transfer tape is reduced, and the coating film can be transferred with a light pressing force.

When the transfer head 4C is pressed and the tension increasing means 5C rotates clockwise around the increasing means mounting shaft 73C, the elastic piece 52C is elastically deformed, but when the deformation amount of the elastic piece 52C exceeds the elastic limit, the elastic piece 52C is elastically deformed. May be destroyed. In such a case, the elastic piece 52
In order to keep the deformation amount of C within the elastic limit, a stopper for restricting the rotation of the tension increasing means 5C may be provided. In the present embodiment, the second stopper 75C is provided on the case 7C as the stopper.

In the coating film transfer tool C, a coil spring, a leaf spring, or the like can be used instead of the plastic elastic piece 52C.

In the coating film transfer tools A, B, and C, the portions of the tension increasing means 5A, 5B, and 5C that are in contact with the belt X have a fixed shape such as a rib, but a rotating roller is used for the portion that contacts the belt. Also good. By using the roller, the sliding resistance of the belt can be reduced.

The coating film transfer tool D in FIG. 4 uses a roller at the contact portion with the belt X of the tension increasing means in the coating film transfer tool A.

In the description of the coating film transfer tool of the invention, the description has been made on the assumption that the tension increasing means is released by the pressing force of the transfer head. However, normally, in the initial stage of use, the coating film is transferred without releasing the tension increasing means. In the middle period of use, the tension increasing means may be in a half-released state.

At the end of use, the force for pulling out the transfer tape from the feeding core increases, so that the transfer tape cannot be pulled out unless the pressing force of the transfer head is increased. Therefore, the tension increasing means is inevitably released, and the coating film can be transferred with a lighter pressing force than the conventional coating film transfer tool.

As Examples 1 to 4 of the present invention, coating film transfer tools A, B, C, and D of the first to fourth embodiments of the present invention shown in FIGS. 1 to 4 were prepared. Moreover, in the conventional coating film transfer tool 1 shown in FIG. 5 as Comparative Examples 1 and 2, two types of coating film transfer tools a and coating film transfer tools b differing only in the belt used were prepared.

The belt used for each coating film transfer tool was an O-ring in which the tension when applied to the feeding core and the winding core in the conventional coating film transfer tool 1 was the tension shown in Table 1. A spring tester (model number SPD-5M-2194) manufactured by Sunagawa Seiki Co., Ltd. was used to measure the tension of the O-ring. The O-ring was hung between predetermined hooks and pulled to the length when 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 tension increasing means of the coating film transfer tools A, B, C, and D were adjusted so that the belt tension was 1.47 N (150 g) with the belt tension increased by the tension increasing means.

If the tension increasing means of the coating film transfer tool A, B, C, D presses the transfer head as shown in FIG. 7 and the pressing force acting on the transfer head is 7.35 N (750 g), Adjustment was made so that the tension increasing means was released.

The following evaluation was performed using the coating film transfer tools of Examples 1 to 4 and Comparative Examples 1 and 2.
(1) Cutting property of coating film in initial stage of use: As shown in FIG. 6 (a), the coating film was not lifted up from the transferred body, and the cutting was good.
X: As shown in FIG. 6B, the coating film was lifted from the transferred material, and the cut was bad.
(2) Measurement of transfer pressing force 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. 7 was measured with a scale with a base. Moreover, about the coating-film transfer tool of Examples 1-4, it was confirmed visually also whether the tension increase means was cancelled | released at the time of the measurement of transfer pressing force. The measurement was performed at two points, the initial use and the final use. Here, the transfer pressing force indicates a necessary minimum load for pressing the transfer head against the transfer target in order to pull out the transfer tape.
(3) Transferability of transfer tape The entire length of the transfer tape was transferred to evaluate the transferability of the transfer tape. The coating film transfer tools of Examples 1 to 4 were evaluated by transferring the coating film with the pressing force of the transfer head from which the tension increasing means was released over the entire length of the transfer tape.
○: The running property of the transfer tape was stable over the entire length.
X: Running property of the transfer tape was unstable over the entire length.

The evaluation results are shown in Table 1. Compared with the coating film transfer tool of Comparative Example 1, the coating film transfer tool of Examples 1 to 4 was able to transfer the coating film with a small pressing force over the entire length of the transfer tape.

1, A, B, C, D, a, b: coating film transfer tool 12, 14: spindle 2: feeding core 3: winding cores 4, 4A, 4B, 4C: transfer head 41C: head mounting hole 44A: Long holes 5A, 5B, 5C: tension increasing means 51C: increasing means mounting hole 52C: elastic piece 53C: first engaging piece 54C: second engaging piece 55C: tension increasing rib

56A: shaft 6B: coil springs 7, 7A, 7B, 7C: case 71C: head mounting shaft 72C: first stopper 73C: increasing means mounting shaft 74C: engagement frame 75C: second stopper X: belt T: transfer tape R :roller

Claims (4)

The transfer tape is fed out from a feeding core in which a transfer tape having a coating film provided on a base tape is wound, and the coating film is pressed against the transfer target with a transfer head, and is transferred between the feeding core and the winding core. A coating film transfer tool that rotates the feeding core and the winding core in conjunction with each other by a belt and winds the base tape after the coating film is transferred onto the winding core, the following (a) and (b) A film transfer tool having the following characteristics.
(A) It has tension increasing means for increasing the tension more than the tension P of the belt hung between the cores.
(A) The tension increasing means is released by the pressing force applied to the transfer head during coating film transfer. By the release, the belt tension returns to the tension P. 2. The tension of the belt is changed to a tension P by releasing the tension increasing means when the transfer head is deformed and / or moved by a pressing force applied to the transfer head. Coating film transfer tool. The coating film transfer tool according to claim 1, wherein an elastic body is provided as a component of the tension increasing means. 4. The coating film transfer tool according to claim 1, wherein the tension increasing means is rotatably provided with a roller, and the belt and the roller are in contact with each other.

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