JPH07291516A - Film transfer roller - Google Patents

Abstract

PURPOSE:To suppress the defective transfer attributed to the non-uniform contact during the film transfer. CONSTITUTION:A rolling part 20 to transfer the transfer film provided on one side of a base plate on the surface to be transferred by rolling the other side of the base plate with flexibility while being pressed, and a supporting part 21 to support the rolling part 20 by a bearing part in a rotatable manner are provided. The rolling part 20 is formed of the cylindrical or approximately cylindrical shape capable of producing the space 23 to allow the elastic deflection of the rolling part 20 on the inner side in the radial direction, and the rolling part 20, the supporting part 21, and a connecting part 22 to concentrically connect these parts 20, 21 are integrated with resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film transfer roller used when a transfer film such as a coating film for image correction or a film glue for adhesion is pressure-transferred onto a transfer surface such as paper. , Rolling while pressing one side of the flexible base material,
The rolling portion provided on the other side surface of the base material for transferring the transfer film to the surface to be transferred and the support portion for rotatably supporting the rolling portion on the bearing portion are provided. The present invention relates to a film transfer roller whose rolling surface is elastically deformable inward in the radial direction.

[0002]

2. Description of the Related Art Considering the case of transferring a transfer film of a base material onto a transfer surface, a holder equipped with the film transfer roller is operated while observing a pressing action portion of the film transfer roller. The base material part that comes into contact with the rolling surface is pressed against the film transfer location on the transferred surface.
When visually operating from a position that is laterally displaced with respect to the holder (in the direction of the axis of rotation of the film transfer roller), the base material part that comes into contact with the rolling surface of the film transfer roller moves against the transfer surface. There is a case where a so-called one-sided contact phenomenon occurs in which the substrate is inclined in the width direction. Even if such a one-sided contact phenomenon occurs, if the pressing force is continuously applied to the film transfer roller as it is, the one-sided contact portion of the rolling surface of the rolling portion is elastically deformed inward in the radial direction and the rolling Since the entire transfer film of the base material portion that comes into contact with the transfer action portion of the surface is pressed against the transfer surface, it is possible to suppress the transfer failure due to one-sided contact. Then, in the conventional film transfer roller, when the rolling surface of the rolling portion is configured to be elastically deformable inward in the radial direction, as shown in FIGS. 5
No. 0 was molded with a hard resin such as polyacetal resin, and the elastomer or rubber member forming the rolling part 51 was formed on the outer periphery of the support part 50 by insert molding or press fitting.

[0003]

The conventional film transfer roller requires a forming process of the support portion 50 and a forming process of forming the rolling portion 51 on the outer peripheral portion of the support portion 50, and further, the insert process is performed. In either case, there is a problem that the manufacturing cost rises because the mold structure for molding becomes complicated or complicated press-fitting work is required. First of the present invention
The purpose is to advantageously manufacture a film transfer roller that can suppress transfer defects due to uneven contact during film transfer in terms of manufacturing cost. Further, the second to fourth objects are that the rolling surface of the rolling portion is easily elastically deformed and deformed inward in the radial direction, and the transfer failure due to one-side contact at the time of film transfer is further suppressed. The point is to be able to.

[0004]

In order to achieve the first object, a film transfer roller according to claim 1 of the present invention comprises:
The rolling portion is formed in a cylindrical shape or a substantially cylindrical shape on the radially inner side thereof so as to expose a space that allows the elastic bending deformation of the rolling portion, and the rolling portion and the supporting portion are supported. It is characterized in that the portion and the connecting portion for connecting both of them in a concentric manner are integrally formed of resin. In order to achieve the second object, in the film transfer roller according to claim 2 of the present invention, slits are formed at a plurality of positions in the rotation direction of the rolling portion along the rotation axis, and these slits are formed. Each of the divided rolling portions located between the adjacent ones is elastically deformable inward in the radial direction. In order to achieve a third object, in the film transfer roller according to claim 3 of the present invention, the connecting portion connects the inner peripheral surface of the rolling portion and the outer peripheral surface of the support portion at a plurality of positions in the rotational direction. It is composed of a plurality of connected bodies. In order to achieve a fourth object, in the film transfer roller according to claim 4 of the present invention, each of the plurality of connecting bodies has a line segment connecting a connecting position with respect to the supporting portion and a rotation axis core, The connection position with respect to the rolling portion is configured to deviate to one side in the rotation direction.

[0005]

According to the structure of claim 1, when the transfer film of the base material is transferred to the transfer surface, the base material portion contacting the rolling surface is inclined in the base width direction with respect to the transfer surface. Even if such a so-called one-side contact phenomenon occurs, the one-side contact portion of the rolling part elastically deforms radially inward toward the space side due to the pressing force applied to the rolling part, and The entire transfer film of the base material portion that contacts the transfer action portion of the moving surface is pressed against the transferred surface. Moreover, a complicated insert molding or press-fitting process as in the prior art is applied to the rolling portion having such an elastically deformable rolling surface, the supporting portion, and the connecting portion connecting these both in a concentric manner. Instead, it can be easily molded in a single process. Further, according to the structure of claim 2, since the plurality of divided rolling portions constituting the rolling portion are divided by the slits along the direction of the rotation axis, the divided rolling portions located at the transfer action portion are separated. It is possible to suppress the elastic deformation inward in the radial direction from being limited by the split rolling portions adjacent to each other on both sides in the rotation direction. Further, according to the structure of claim 3, elastic deformation of the rolling surface portion of the rolling portion, which corresponds to an intermediate portion between the adjacent coupling bodies in the rotational direction, inward in the radial direction is prevented. Can be tolerated. Further, according to the structure of claim 4, when the pressing operation force for film transfer is applied to the rolling portion, the connecting portion itself that concentrically connects the rolling portion and the support portion is radially inward. Since it elastically deforms to the side, the rolling surface portion of the rolling part to which this connecting part is connected can also elastically deform to the radially inner side.

[0006]

According to the structure of the first aspect, it is not necessary to perform complicated insert molding and press-fitting processing as in the conventional case, and moreover, the molding process can be performed only once. The film transfer roller capable of suppressing the transfer failure due to the above can be advantageously manufactured in terms of manufacturing cost. According to the structure of claim 2, compared to the case where the rolling surface of the rolling portion is formed as a continuous surface along the rotation direction,
Even if the same pressing operation force is applied at the time of film transfer, the elastic flexural deformation amount inward in the radial direction can be made large, so that transfer failure due to one-sided contact can be more effectively suppressed. According to the structure of claim 3, compared to the case where the connecting portion that connects the rolling portion and the support portion concentrically to each other is formed in an annular plate shape that is continuous in the rotation direction, this connecting portion is formed. It is possible to promote elastic bending deformation of the rolling surface portions of the connected rolling portions inward in the radial direction, and to more effectively suppress the transfer failure due to one-sided contact. According to the structure of claim 4, the elastic bending deformation of the connecting portion itself inward in the radial direction causes the elastic deformation of the rolling surface portion of the rolling portion connected to the connecting portion inward in the radial direction. It is possible to effectively prevent the transfer failure due to one-sided contact.

[0007]

【Example】

[First Embodiment] FIG. 3 shows a resin base film b (thickness) as an example of a flexible base material of an adhesive film a (thickness: about 20 μm) for pressure-sensitive adhesion as an example of a transfer film. About 25μ
m) A transfer ribbon R provided on one side surface is provided on the feeding core 1 with the resin collar 1a and the winding core 2 with the resin collar 2a with the adhesive film a side facing outward. The transfer ribbon R that is wound around the cores 1 and 2 is held by the resin-made plate-shaped holding member 3 in a relative posture in which the cores 1 and 2 can be loaded into the holder C, and the transfer ribbon R that is fed from the feeding core 1 is printed. Or the like and presses the adhesive film a toward the surface B to be transferred.
1 shows a transfer ribbon cassette D in which a film transfer roller A to be transferred to is rotatably provided.

The plate-like holding member 3 is formed in an outer shape that substantially follows the shape of the inner peripheral surface of the holder C to be loaded, holds the cores 1 and 2 rotatably in a cantilevered state, and holds the holder C. A through hole 7 that fits into a protrusion 6 formed on the side to position the holder C, a claw 8 that restricts reverse rotation of the winding core 2, and a ribbon of a transfer ribbon R that passes through the film transfer roller A. A pair of left and right triangular plate-shaped regulating members 9 for regulating the positional deviation in the width direction are integrally formed, and both ends of the film transfer roller A in the ribbon width direction (both ends in the rotation axis direction) are rotated by the left and right regulating members 9. The transfer ribbon R, which is freely supported and further extends from the feeding core 1 to the winding core 2, is wound around the film transfer roller A.

FIGS. 1 and 2 show a coating film transfer tool in which the transfer ribbon cassette D is removably loaded in a holder C. The holder C hinges two divided holder members C1 and C2 in the ribbon width direction. 10 is configured to be openably and closably connected, and one of the split holder members C1 is connected to the feeding core 1
And the winding cylinder shaft 12 into which the shaft hole of the winding core 2 is inserted are rotatably supported, and the winding cylinder shaft 11 is related to the winding cylinder shaft 11. Feeding core 1 to be inserted
The rotation of the winding core 2 and the rotation of the winding core 2 engaged with the winding cylinder shaft 12 can be performed in a state where the winding speed is higher than the feeding speed, and the rotation of the feeding core 1 and the winding core 2 There is provided a slip interlocking mechanism 13 that interlocks with the rotation of the slippery.

The slip interlocking mechanism 13 includes a first pulley 14 formed integrally with one end of the feeding cylinder shaft 11,
A second pulley 15 formed integrally with one end of the winding cylinder shaft 12 and a rubber transmission round belt 16 wound around the first pulley 14 and the second pulley 15 are provided. And the transfer ribbon R to the feeding core 1
Even when the winding diameter of the first pulley 14 becomes smaller than the ribbon winding speed from the winding core 1, the second pulley 15 keeps the ribbon winding speed higher than the ribbon winding speed from the winding core 1.
With a smaller diameter than the above, the slip between the transmission round belt 16 and the second pulley 15 interlocks the rotation of the feeding core 1 and the rotation of the winding core 2 in a slippery manner, and the ribbon feeding speed and ribbon winding It is constructed so as to be able to absorb the speed difference from the taking speed.

The transfer ribbon cassette D is positioned with respect to the split holder member C1 by opening the holder C and fitting the projection 6 formed on one of the split holder members C1 into the through hole 7 of the plate-like holding member 3. While the transfer shafts 11 and 12 are engaged with the free ends of the cores 1 and 2 and the transfer ribbon cassette D is mounted on one split holder member C1 side, the other split holder member C2 holds the holder C Is closed and the adhesive film a of the transfer ribbon R is pressed against the transfer surface B side, the film transfer roller A is rolled toward the upper side in the ribbon feeding direction from the feeding core 1, and the transfer ribbon R is fed. 1 is rotated while being rotated, the adhesive film a is transferred to the transfer surface B, and the used transfer ribbon R is used.
Is contacted with the adhesive film a side of the transfer ribbon R wound around the pay-out core 1 and is lightly adhered to the take-up core 2.

The film transfer roller A has the structure shown in FIG.
(B) and as shown in FIG. 5, a cylindrical rolling portion 20 that rolls while pressing the back surface of the base film b to transfer the adhesive film a of the base film b to the transfer surface B,
A round shaft-shaped support portion 21 that rotatably supports the rolling portion 20 on groove-shaped bearing portions 19 formed on the left and right regulating members 9.
And a ring-shaped plate-like connecting portion 22 that connects both of these 20 and 21 concentrically at the central position in the direction of the axis of rotation, are integrally molded of a thermoplastic resin such as polyethylene, polypropylene, elastomer, or polyacetal. Is configured. Between the inner peripheral surface of the rolling portion 20 and the outer peripheral surface of the support portion 21, it is continuous in the rotational direction along the rolling surface 20a of the rolling portion 20 and on both sides in the rotational axis direction. A ring-shaped space 23 opening toward the side is formed, and the rolling surface portion of the rolling surface 20a of the rolling portion 20 except the portion corresponding to the coupling portion 22 and the portion in the vicinity thereof has a diameter. It is configured to be elastically deformable toward the inner side of the direction, in other words, toward the annular space 23 side. The small-diameter shaft portions 21a formed at both ends of the support portion 21 have the groove-shaped bearing portions 19a.
It is inserted and held rotatably in the inside.

Further, to give an example of the dimensions of each part of the film transfer roller A configured as described above, the rolling part 20
Has an outer diameter D1 of 9 mm, an inner diameter D2 of 7.6 mm, and a length L1 in the rotation axis direction of 12 mm. In addition, the support 2
The outer diameter D3 of the large-diameter shaft portion 21b of No. 1 is 3.6 mm, the outer diameter D4 of the small-diameter shaft portion 21a is 2 mm, and the length L in the rotation axis direction is L.
2 is 15 mm, and the thickness t of the connecting portion 22 is 0.7 mm.

When the adhesive film a of the transfer ribbon R is transferred onto the transfer surface B, the holder C tilts slightly in the ribbon width direction, and the transfer ribbon R contacting the rolling surface 20a of the film transfer roller A is transferred. Even if a so-called one-side contact phenomenon, such as an inclination in the ribbon width direction with respect to the transferred surface B, occurs, if the pressing operation force is continuously applied to the film transfer roller A as it is, the rolling surface 20a of the rolling portion 20 The one-side contact portion is elastically deformed inward in the radial direction, and the entire adhesive film a of the transfer ribbon R contacting the pressing action portion of the rolling surface 20a is pressed against the transferred surface B, resulting in one-side contact. Transfer defects can be suppressed. In addition, in the said 1st Example, although the amount of elastic deflection deformation in the both ends of the said rolling part 20 in the rotating shaft core direction becomes the maximum, the elastic deflection in the central part of the said rolling part 20 in the rotating shaft center direction is made. The deformation amount becomes substantially zero due to the presence of the connecting portion 22. However, at the time of transfer, since there is a consciousness to operate the holder C so that the transfer ribbon R that contacts the rolling surface 20a of the film transfer roller A becomes parallel to the transferred surface B, the above-mentioned piece Even if the hitting phenomenon occurs, the inclination angle in the ribbon width direction with respect to the transfer surface B is often within a very small range, and as described above, the rolling portion 20 is elastic at the central portion in the rotation axis center direction. Even when the amount of flexural deformation is substantially zero, the entire adhesive film a of the transfer ribbon R can be pressed against the transfer surface B by utilizing the elastic deformation force of the transfer ribbon R.

[Second Embodiment] (a) and (b) of FIG.
Another embodiment of the film transfer roller A is shown, in which the connecting portion 22 is provided at a plurality of positions in the rotation direction between the inner peripheral surface of the rolling portion 20 and the outer peripheral surface of the support portion 21 (4 in this embodiment). And a line segment connecting the connecting position P1 with respect to the support portion 21 and the rotation axis X to each other.
The connecting position P2 with respect to the rolling portion 20 is curved in an arc shape in a state of being displaced to one side in the rotation direction, in other words, in a state of being displaced to the lower side in the rotation direction. In the case of the second embodiment, when a pressing operation force for film transfer is applied to the rolling portion 20, the connecting portion 22 itself which connects the rolling portion 20 and the supporting portion 21 in a concentric manner is also in the radial direction. Since it is possible to elastically bend and deform inward, the rolling surface portion of the rolling portion 20 to which this connecting portion 22 is connected, that is, the rolling located at the central portion in the direction of the axis of rotation. The surface portion can also be elastically bent and deformed inward in the radial direction, and the transfer failure due to one-sided contact can be favorably suppressed.

[Third Embodiment] FIGS. 7A and 7B show
Another embodiment of the film transfer roller A is shown, which is a portion of the rolling portion 20 on both sides in the direction of the axis of rotation except for the connecting portion with the connecting portion 22 and the vicinity thereof, and Slits 24 along the direction of the axis of rotation are provided at each of a plurality of locations (8 locations in this embodiment) separated by a predetermined pitch.
Is formed in a state where the one located on the one side in the direction of the axis of rotation and the one located on the other side are displaced by half a pitch,
Each of the divided rolling portions 20A located between the slits 24 adjacent to each other in the rotational direction is elastically deformable inward in the radial direction. In the case of the third embodiment, since the plurality of divided rolling portions 20A forming the rolling portion 20 are divided in the rotational direction by the slits 24 along the direction of the rotation axis, the divided rolling portions located at the transfer action portion are divided. Moving part 20
It is possible to prevent the elastic flexural deformation of A inward in the radial direction from being limited by the split rolling portions 20A adjacent to each other on both sides in the rotational direction thereof. Therefore, compared with the case where the rolling surface 20a of the rolling portion 20 is formed as a continuous surface along the rotation direction, even if the same pressing operation force is applied during the film transfer, the elasticity inward in the radial direction is generated. Since the amount of flexural deformation can be made large, it is possible to better suppress the transfer failure due to one-sided contact.

[Fourth Embodiment] FIGS. 8A and 8B are
Another embodiment of the film transfer roller A is shown, in which the connecting portion 22 is provided at a plurality of positions in the rotation direction between the inner peripheral surface of the rolling portion 20 and the outer peripheral surface of the support portion 21 (4 in this embodiment). A plurality of rod-shaped connecting bodies connected to each other at a position), each of the connecting bodies 22 is formed in a straight line along the diametrical direction, and among the rolling portions 20, the connecting bodies which are adjacent in the rotation direction. The rolling part 2
The slits 24 extending from one end side to the other end side in the direction of the axis of rotation 0 of 0 are formed, and each of the divided rolling portions 20A located between the slits 24 adjacent to each other in the rotation direction is radially inward. It is configured to be elastically deformable. This 4th
In the case of the embodiment, of the rolling surface 20a of the rolling portion 20,
It is possible to allow elastic flexural deformation of the rolling surface portion corresponding to the center between the adjacent coupling bodies 22 in the rotation direction to the radially inner side, and moreover, a plurality of divided rolling elements constituting the rolling portion 20. Since the portion 20A is divided in the rotation direction by the slit 24 extending along the axis of the rotation axis, the elastic bending deformation of the split rolling portion 20A located at the transfer action portion inward in the radial direction is changed in the rotation direction. It is possible to suppress the restriction by the divided rolling portions 20A located adjacent to both sides. Therefore, as compared with the case where the connecting portion 22 that connects the rolling portion 20 and the support portion 21 in a concentric shape is formed in an annular plate shape that is continuous in the rotation direction, the connecting portion 22 is connected. The elastic bending deformation of the rolling surface portion of the rolling portion 20 inward in the radial direction can be promoted, and the rolling surface 20a of the rolling portion 20 is formed as a continuous surface along the rotation direction. In comparison with the case where the same pressing operation force is applied at the time of film transfer, a synergistic effect of being able to take a large elastic flexural deformation amount inward in the radial direction causes a transfer failure due to one-sided contact. It can be suppressed even better.

[Fifth Embodiment] FIGS. 9A and 9B show
Another embodiment of the film transfer roller A is shown, which includes a plurality of connecting portions 22 that connect the inner peripheral surface of the rolling portion 20 and the outer peripheral surface of the support portion 21 at a plurality of positions in the rotation direction. In this embodiment, it is composed of four rod-shaped connecting bodies, each of the connecting bodies 22 is formed in a straight line along the diametrical direction, and the rotating direction of each connecting body 22 of the rolling portion 20 is set. A slit 24 extending from one end side to the other end side of the rolling portion 20 in the direction of the rotation axis is formed at each of the one side side corresponding portions. In the case of the fifth embodiment, the working effect described in the fourth embodiment is obtained, and further, the connecting body 22 is continuously provided on one side in the rotation direction of the split rolling portion 20A divided by the slit 24. Therefore, the amount of elastic flexural deformation of the split rolling portion 20A inward in the radial direction can be increased, and the transfer failure due to one-sided contact can be further suppressed.

[Sixth Embodiment] FIG. 10 (a), (b)
Shows another embodiment of the film transfer roller A.
The connecting portion 22 is connected to the inner peripheral surface of the rolling portion 20 and the supporting portion 2.
1 (4 in this embodiment) is connected to the outer peripheral surface of the first outer peripheral surface at a plurality of positions, and each of the connecting members 22 is connected to the supporting portion 21 at a connecting position P1. With respect to the line segment connecting the axis of rotation X, the connection position P2 with respect to the rolling portion 20 is displaced to one side in the rotation direction, in other words, to the lower side in the rotation direction. In addition to being curved in an arc shape, each of the rolling portions 20 on one side side in the rotation direction of each connecting body 22 is arranged from one end side to the other end side in the rotation axis direction of the rolling portion 20. A slit 24 extending to the end is formed. In the case of the sixth embodiment, in addition to the operation and effect described in the fifth embodiment, the connecting portion 22 itself that connects the rolling portion 20 and the supporting portion 21 concentrically is also radially inward. Since it is possible to elastically bend and deform, the rolling surface portion of the rolling portion 20 to which the connecting portion 22 is connected, that is, the rolling surface portion located in the central portion in the direction of the axis of rotation also has a diameter. It is possible to elastically bend and deform inward in the direction, and it is possible to further suppress the transfer failure due to one-sided contact.

[Seventh Embodiment] In each of the above-described embodiments, the film transfer roller A is rotatably supported by the transfer ribbon cassette D. However, as shown in FIGS. The transfer ribbon cassette D and the holder C may be supported. The film transfer roller A
Is a cylindrical support that is rotatably fitted over a cylindrical rolling portion 20 and a round shaft-shaped bearing projection 19a that is formed to project on the inner surfaces of the divided holder members C1 and C2 of the holder C that face each other. The part 21 and the annular plate-shaped connecting part 22 for connecting both of these 20, 21 in a concentric circular shape at one end in the direction of the axis of rotation are made of a thermoplastic resin such as polyethylene, polypropylene, elastomer, or polyacetal. It is integrally molded and is continuous between the inner peripheral surface of the rolling portion 20 and the outer peripheral surface of the support portion 21 in the rotational direction along the rolling surface 20a of the rolling portion 20, and An annular space 23 that opens toward one side in the direction of the axis of rotation is formed,
Of the rolling surface 20a of the rolling portion 20, the connecting portion 22
The rolling surface portion excluding the portion corresponding to the connection with and the portion in the vicinity thereof is configured to be elastically deformable toward the radially inner side, in other words, the annular space 23 side. Further, one end of the support portion 21 is formed to project outward in the direction of the rotation axis center from the rolling portion 20, and the projecting tip portion of the plate-shaped holding member 3 of the transfer ribbon cassette D is formed. An annular groove 25 is rotatably fitted and held in the formed bearing groove 19b. Support part 2 of film transfer roller A
The bearing portion 19 for rotatably supporting the bearing 1 is a pair of bearing protrusions 19 formed on the split holder members C1 and C2.
a and a bearing groove 19b formed in the plate-shaped holding member 3 of the transfer ribbon cassette D by notching. That is, the film transfer roller A is tentatively held rotatably in the bearing groove 19b of the transfer ribbon cassette D in a cantilevered state, and when the transfer ribbon cassette D is loaded at a predetermined position in the holder C, the holder C It is configured to be rotatably held in a double-supported state by a pair of bearing protrusions 19a. In the embodiment, a gear that meshes with the feeding cylinder shaft 11 into which the shaft hole of the feeding core 1 is inserted and the winding cylinder shaft 12 into which the shaft hole of the winding core 2 is inserted. Part 1
1a and 12b are integrally formed, and the plate-like holding member 3 is formed with bearing grooves 3a and 3b that rotatably fit and hold the feeding core 1 and the winding core 2, respectively.

[Eighth Embodiment] FIG. 13 shows a modification of the seventh embodiment, in which a bearing portion 19 for rotatably supporting a support portion 21 of the film transfer roller A includes the split holder members C1, C2. A round shaft-shaped bearing projection 19c formed on one of the inner surfaces facing each other, and a recess 19d formed on the other inner surface in a state of being fitted to the tip of the bearing projection 19c.
And a bearing groove 19b formed in the plate-shaped holding member 3 of the transfer ribbon cassette D. In addition, the film transfer roller A is brought into contact with the outer peripheral surface of the bearing protrusion 19c at a central position in the axial direction of the inner peripheral surface of the supporting portion 21 of the film transfer roller A, and the film transfer roller A is fixed within a certain range with the contact position as a fulcrum. An annular fulcrum projection 19e is integrally formed so as to be swingably supported inside (the range in which the axial center end of the inner peripheral surface of the support portion 21 contacts the outer peripheral surface of the bearing projection 19c). In the case of this embodiment, the film transfer roller A itself has an annular fulcrum projection 19
The rolling surface 20 of the rolling portion 20 of the film transfer roller A is swingable within a certain angle range with the contact point of e as a fulcrum.
Of a, the rolling surface portion excluding a portion corresponding to the connection with the connecting portion 22 and a portion in the vicinity thereof is configured to be elastically deformable inward in the radial direction, in other words, to the annular space 23 side. Therefore, the transfer failure due to one-sided contact can be suppressed even better. In this embodiment, the bearing protrusion 19 is formed on the inner peripheral surface of the support portion 21 of the film transfer roller A.
The annular fulcrum projection 19e that contacts the outer peripheral surface of c is integrally formed. The annular fulcrum projection 19e is integrally formed on the outer peripheral surface of the bearing projection 19c, and the tip thereof is the film transfer roller A.
You may make it contact | abut on the inner peripheral surface of the support part 21 of this. The annular fulcrum protrusion 19e may be manufactured separately from the supporting portion 21 or the bearing protrusion 19c of the film transfer roller A and then attached to the supporting portion 21 or the bearing protrusion 19c. Since other configurations are the same as those of the seventh embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted.

[Ninth Embodiment] In each of the above-described embodiments, the supporting portion 21 of the film transfer roller A is supported by the plate-shaped holding member 3 of the transfer ribbon cassette D, or the plate-shaped holding member 3 is supported. And holder C divided holder members C1, C
However, as shown in FIG. 14, the supporting portion 21 of the film transfer roller A may be supported only by the holder C. That is, the bearing portion 19 that rotatably supports the support portion 21 of the film transfer roller A, and the bearing protrusion 19c having a round shaft shape that is formed to project on one of the inner surfaces of the divided holder members C1 and C2 that face each other. It may be composed of a concave portion 19d formed on the other inner surface in a state that it can be fitted to the tip portion of the bearing projection 19c. The film transfer roller A itself has a cylindrical rolling portion 20, a cylindrical supporting portion 21, and an annular plate shape that connects both of these 20, 20 in a concentric circular shape at a central position in the direction of the axis of rotation. Connection part 22
And polyethylene, polypropylene, elastomer,
It is integrally molded with a thermoplastic resin such as polyacetal and rotates between the inner peripheral surface of the rolling portion 20 and the outer peripheral surface of the support portion 21 along the rolling surface 20a of the rolling portion 20. A ring-shaped space 23 that is continuous in the direction of rotation and opens toward one side in the direction of the rotation axis, and is formed on the rolling surface 20a of the rolling portion 20 with the connecting portion 22. The rolling surface portion excluding the connection-corresponding portion and the portion in the vicinity thereof is configured to be elastically deformable inward in the radial direction.

Other Embodiments In the above-described first embodiment, the case where the transfer film a is an adhesive film for pressure-sensitive adhesion has been described, but the present invention is not limited to this, and a transfer coating for character correction is used. It may be a film or a colored transfer coating film, and may be a heat-sensitive transfer film in addition to the pressure-sensitive transfer film. In the above-described embodiment, the rolling portion 20 is formed in a cylindrical shape or a substantially cylindrical shape divided by the slit 24, but the rolling portion 20 is not limited to such a cylindrical shape or a substantially cylindrical shape, and a polygonal cylinder or a substantially circular cylinder. You may implement it, comprising a polygonal cylinder. As the base material b, polyimide, polyester,
Examples thereof include resin films such as polyethylene, and paper films such as condenser paper and glassine paper.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a holder is opened.

FIG. 2 is a sectional view of a main part

FIG. 3 is a perspective view showing a transfer ribbon cassette.

FIG. 4A is a sectional view of the film transfer roller, and FIG. 4B is a side view of the film transfer roller.

FIG. 5 is a side view of the film transfer roller when the one-side contact phenomenon occurs.

FIG. 6A is a cross-sectional view of the film transfer roller of the second embodiment, and FIG. 6B is a side view of the film transfer roller.

FIG. 7A is a partially cutaway plan view of the film transfer roller of the third embodiment. FIG. 7B is a side view of the film transfer roller.

FIG. 8A is a partially cutaway plan view of the film transfer roller of the fourth embodiment. FIG. 8B is a side view of the film transfer roller.

FIG. 9A is a sectional view of the film transfer roller of the fifth embodiment, and FIG. 9B is a side view of the film transfer roller.

FIG. 10A is a sectional view of the film transfer roller of the sixth embodiment, and FIG. 10B is a side view of the film transfer roller.

FIG. 11 is an exploded perspective view showing a seventh embodiment.

FIG. 12 is an enlarged cross-sectional view of a mounting portion of the film transfer roller in FIG.

FIG. 13 is an enlarged cross-sectional view of a mounting portion of a film transfer roller showing an eighth embodiment.

FIG. 14 is an enlarged sectional view of a mounting portion of a film transfer roller showing a ninth embodiment.

15A is a cross-sectional view of a conventional film transfer roller, and FIG. 15B is a side view of the film transfer roller.

[Explanation of symbols]

 a transfer film b base material B transferred surface 19 bearing portion 20 rolling portion 20A split rolling portion 20a rolling surface 21 support portion 22 connecting portion 23 space 24 slit

Claims (4)

[Claims] 1. A transfer film (a) provided on the other side surface of the base material (b) is transferred by rolling while pressing one side surface of the base material (b) having flexibility. A rolling portion (20) transferred to the surface (B) and a bearing portion (19) for the rolling portion (20).
And a support portion (21) for rotatably supporting the
A film transfer roller in which a rolling surface (20a) of the rolling portion (20) is elastically deformable inward in the radial direction, the rolling portion (20) being in the radial direction thereof. The space (23) that allows the elastic deformation of the rolling part (20) is formed on the inner side, and the space (23) is formed into a cylindrical shape or a substantially cylindrical shape.
A film transfer roller in which the rolling portion (20), the support portion (21), and a connecting portion (22) for connecting both of these (20, 21) in a concentric manner are integrally formed of resin. 2. Slits (24) extending along the direction of the axis of rotation are formed at each of a plurality of positions in the rotating direction of the rolling portion (20), and the slits (24) are located between adjacent slits (24). The film transfer roller according to claim 1, wherein each of the divided rolling portions (20A) is configured to be elastically deformable inward in the radial direction. 3. The connecting portion (22) is the rolling portion (2).
The film transfer roller according to claim 1 or 2, wherein the film transfer roller comprises a plurality of connecting bodies that connect the inner peripheral surface of (0) and the outer peripheral surface of the supporting portion (21) at a plurality of positions in the rotational direction. 4. Each of the plurality of connecting bodies (22) comprises:
The connection position (P2) for the rolling portion (20) is displaced to one side in the rotational direction with respect to the line segment connecting the connection position (P1) for the support portion (21) and the rotation axis core (X). The film transfer roller according to claim 3, which is configured to: