Transfer tool

The transfer tool addresses support shaft breakage by employing stress relief mechanisms with divided shaft portions and slit openings to distribute bending stress, ensuring reliable assembly and reducing defects.

JP7848038B2Active Publication Date: 2026-04-20KOKUYO CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KOKUYO CO LTD
Filing Date
2022-04-13
Publication Date
2026-04-20

AI Technical Summary

Technical Problem

Transfer tools experience support shaft breakage during assembly due to concentrated bending stress when attaching gears or pulleys to support shafts, leading to increased defect rates.

Method used

The transfer tool incorporates stress relief means with divided shaft portions and slit openings that allow the bases of the shaft portions to move towards each other, distributing bending stress and preventing concentration at the support shaft base, thereby reducing the risk of breakage during assembly.

Benefits of technology

This configuration effectively prevents support shaft breakage during production assembly, reducing defect rates by relieving bending stress through the use of stress relief mechanisms with divided shaft portions and slit openings.

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Abstract

To prevent the spindle from breaking during production and assembly.SOLUTION: The transfer tool of the present invention is a transfer tool in which a transfer tape fed out from a feed reel is wound onto a winding reel via a transfer head. The transfer tool includes rotation transmission means that has a disk-shaped feed gear, a winding gear, and an intermediate gear, and transmits the rotation of the feed reel to the winding reel. The intermediate gear is rotatably supported by the intermediate spindle, and the intermediate gear is provided with stress relaxation means for relieving bending stress when attaching the intermediate gear to the intermediate spindle.SELECTED DRAWING: Figure 3
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Description

Technical Field

[0001] The present invention relates to a transfer tool.

Background Art

[0002] Conventionally, various transfer tools have been known in which a transfer tape with a transfer material such as a correction tape agent or glue attached thereto is pressed against a transfer target surface by a transfer head to transfer the transfer material to the transfer target surface.

[0003] As a transfer tool, there is a coating film transfer tool in which a supply reel around which a transfer tape is wound, a transfer head that transfers the transfer tape drawn from the supply reel to a transfer portion, and a take-up reel that takes up the transfer tape after transfer are arranged (see Patent Document 1). In the coating film transfer tool of Patent Document 1, a gear for the supply reel that rotates together with the supply reel is rotatably attached to a support shaft for the supply reel, and a gear for the take-up reel that rotates together with the take-up reel is rotatably attached to a support shaft for the take-up reel. A transmission gear is provided between the gear for the supply reel and the support shaft for the take-up reel. When the take-up reel is attached to the support shaft for the take-up reel, the gear for the supply reel, the transmission gear, and the gear for the take-up reel mesh with each other.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a transfer tool similar to the coating transfer tool described in Patent Document 1, for example, the supply reel support shaft may have a first shaft portion and a second shaft portion that are divided vertically, with locking portions formed on the outer circumferential surfaces of the tips of the first shaft portion and the second shaft portion, respectively. In this case, when attaching the supply reel gear to the supply reel support shaft, as the locking portions of the first shaft portion and the second shaft portion pass through the shaft hole of the supply reel gear, the first shaft portion and the second shaft portion flex so that the locking portions of the first shaft portion and the second shaft portion move closer together. After that, as the locking portions of the first shaft portion and the second shaft portion return to a separated state after passing through the shaft hole of the supply reel gear, the supply reel gear is attached to the supply reel support shaft in a way that prevents it from coming off. At that time, since the bending stress is concentrated at the base of the supply reel support shaft when attaching the supply reel gear, there is a problem that the support shaft may break during production assembly.

[0006] The problems described above can occur not only with the gear for the supply reel, but also with the gears for the winding reel and the transmission gear when they are mounted on the support shaft, as seen in the case of the coating transfer device described in Patent Document 1. Furthermore, in a transfer device that transmits the rotation of the unwinding reel to the winding reel via a pulley and belt, the same problems can occur when the pulley is mounted on the support shaft.

[0007] This invention has been made in view of these problems, and aims to provide a transfer tool that can prevent the breakage of the support shaft during production and assembly. [Means for solving the problem]

[0008] To achieve this objective, the present invention employs the following means.

[0009] In other words, the transfer device of the present invention is a transfer device that winds a transfer tape, unwound from a dispensing reel, onto a take-up reel via a transfer head, and has a plurality of disc-shaped rotation transmission members, and is equipped with rotation transmission means for transmitting the rotation of the dispensing reel to the take-up reel, and each rotation transmission member is rotatably supported on a support shaft, The support shaft has multiple shaft portions that are divided in the circumferential direction.Regarding at least one of the plurality of rotational transmission members: te Response Force-relieving means are provided. The stress relief means provides an opening that sandwiches the base of the shaft portion in the direction in which the shaft portion deforms when the rotational transmission member is attached to the support shaft, thereby allowing the base portion to move in the direction in which the shaft portion deforms when the rotational transmission member is attached to the support shaft, and thereby reduces the bending stress when the rotational transmission member is attached to the support shaft compared to the case where there is no opening. It is characterized by the following:

[0010] In this configuration, when the rotational transmission member is attached to the support shaft, the flexural stress acting on the support shaft is relieved by the stress relief mechanism, preventing the flexural stress from concentrating at the base of the support shaft. Therefore, it is possible to prevent support shaft breakage during production assembly. This reduces the defect rate.

[0011] In the transfer device of the present invention, The aforementioned The stress relief means preferably includes openings provided inside the plurality of shaft portions.

[0012] In this way, when attaching the rotational transmission member to the support shaft, the bases of the multiple shaft sections can move toward each other, thus allowing for proper relief of bending stress when attaching the rotational transmission member to the support shaft.

[0013] In the transfer device of the present invention, the stress relief means includes a first slit opening, a second slit opening, and a third slit opening, and the support shaft has a first shaft portion and a second shaft portion divided in the circumferential direction, wherein the first shaft portion is provided on a first support portion disposed between the first slit opening and the second slit opening, and the second shaft portion is provided on a second support portion disposed between the second slit opening and the third slit opening.

[0014] In this configuration, the support shaft to which the rotational transmission member is attached is divided into a first shaft portion and a second shaft portion, and a second slit opening is provided between the base of the first shaft portion and the base of the second support portion. Therefore, when attaching the rotational transmission member to the support shaft, an opening can be easily formed that allows the base of the first shaft portion and the base of the second support portion to move toward each other.

[0015] In the transfer device of the present invention, it is preferable that a first thickened portion is formed at the base of the first shaft portion, having a width along the second slit opening that is wider than that at the tip of the first shaft portion, and a second thickened portion is formed at the base of the second shaft portion, having a width along the second slit opening that is wider than that at the tip of the second shaft portion.

[0016] In this way, the base of the support shaft can be reinforced by increasing the thickness of the base of the first shaft and the base of the second shaft.

[0017] In the transfer tool of the present invention, it is preferable that the first to third slit openings extend substantially parallel to the direction of the stress acting on the rotational transmission member through the transfer tape when the transfer tape is used.

[0018] In this way, when the head at the tip of the transfer tool is pressed against the surface, stress is applied to the rotational transmission member through the tape, but this stress can be received by both the first and second shaft sections.

[0019] In the transfer device of the present invention, the rotational transmission means comprises a rotational transmission member for dispensing that is rotatably supported on a dispensing support shaft and can rotate integrally with the dispensing reel, a rotational transmission member for winding that is rotatably supported on a winding support shaft and can rotate integrally with the winding reel, and an intermediate rotational transmission member for rotatably supported on an intermediate support shaft and disposed between the rotational transmission member for dispensing and the rotational transmission member for winding. Preferably, the stress relief means is provided to relieve the bending stress when attaching the rotational transmission member to at least the support shaft with the smallest shaft diameter among the dispensing support shaft, the winding support shaft, and the intermediate support shaft.

[0020] This method prevents the smallest diameter support shaft among the feed-out shaft, winding shaft, and intermediate shaft from breaking during production assembly.

[0021] In the transfer device of the present invention, the rotational transmission member is preferably a gear.

[0022] In the transfer device of the present invention, it is preferable that the rotation transmission member is a pulley.

Advantages of the Invention

[0023] According to the present invention, when assembling in production, it is possible to prevent the spindle from breaking when the rotation transmission member is attached to the spindle.

Brief Description of the Drawings

[0024] [Figure 1] It is a perspective view of the transfer device 1 according to an embodiment of the present invention. [Figure 2] FIG. 2(a) is a front view of the transfer device 1 of FIG. 1, and FIG. 2(b) is a view showing the reel interlocking mechanism E. [Figure 3] It is a plan view showing the configuration of the first case member 2a included in the transfer device 1 of FIG. 1. [Figure 4] It is a perspective view showing the configuration of the first case member 2a included in the transfer device 1 of FIG. 1. [Figure 5] FIG. 5(a) is a cross-sectional view taken along line a1-a1 in FIG. 3, and FIG. 5(b) is a cross-sectional view taken along line a2-a2 in FIG. 3. [Figure 6] FIG. 6(a) is a plan view of the intermediate gear e2, FIG. 6(b) is a plan view of the periphery of the intermediate spindle 12, and FIG. 6(c) is a plan view showing the state where the intermediate gear e2 is attached to the intermediate spindle 12. [Figure 7] FIGS. 7(a) to 7(c) are diagrams for explaining the bending operation of the first shaft portion 12a and the second shaft portion 12b when the intermediate gear e2 is attached to the intermediate spindle 12. [Figure 8] It is a front view of the transfer device 101 according to a modified example of the present invention. [Figure 9] It is a front view of the transfer device 201 according to a modified example of the present invention. [Figure 10] It is a front view of the transfer device 301 according to a modified example of the present invention. [Figure 11] It is a plan view showing the configuration around the intermediate spindle 512 of the transfer device according to a modified example of the present invention. [Figure 12] This is a plan view showing the configuration around the intermediate support shaft 612 of a transfer tool according to a modified example of the present invention. [Modes for carrying out the invention]

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0026] Figure 1 is a perspective view of a transfer tool 1 according to an embodiment of the present invention. Figure 2 is a front view of the transfer tool 1 of Figure 1. Note that Figure 2 shows the case 2 with the second case member 2b removed in order to facilitate explanation of the main parts inside the case 2.

[0027] This embodiment applies the present invention to a transfer tool for transferring a correction tape T, which is a transfer material, onto a transfer target surface such as paper.

[0028] As shown in Figures 1 and 2, the transfer device 1 of this embodiment has a case 2 capable of housing a dispensing reel A on which the transfer tape T is wound, a take-up reel C, and a reel interlocking mechanism E. A transfer head B is positioned at the front end of the case 2. The transfer device 1 is configured to wind the transfer tape T, which is dispensed from the dispensing reel A, onto the take-up reel C via the transfer head B.

[0029] <Case 2> Case 2 is made of synthetic resin and has an internal storage space. Case 2 has a first case member 2a having the right side wall of the transfer tool 1 and a second case member 2b having the left side wall of the transfer tool 1. By combining the first case member 2a and the second case member 2b, a case 2 is constructed that has a storage space capable of accommodating the dispensing reel A and the winding reel C.

[0030] An opening 2c is formed on the front side of case 2 for guiding the transfer tape T to the transfer head B and for introducing the transfer tape T, which has passed through the transfer head B, into the interior of case 2.

[0031] As shown in Figure 3, the inner surface of the first case member 2a is provided with a feeding support shaft 10 that rotatably supports the feeding reel A, a winding support shaft 11 that rotatably supports the winding reel C, and an intermediate support shaft 12 that rotatably supports the intermediate gear e2, which will be described later.

[0032] In addition to the feed reel A, the take-up reel C, and the reel interlocking mechanism E, the case 2 also contains other mechanisms, such as a clutch mechanism that allows the feed reel A to rotate forward during the transfer operation. However, in the following description, we will mainly describe the feed reel A, the take-up reel C, and the reel interlocking mechanism E, which are related to the present invention, and will omit descriptions of the other mechanisms.

[0033] <Reel A for dispensing> The dispensing reel A has a dispensing reel body a1 that is cylindrical in shape and extends in the left-right direction on which the transfer tape T is wound. The transfer tape T is wound around the outer circumference of the dispensing reel body a1.

[0034] <Transfer head B> The transfer head B comprises a plate-shaped tip pressing portion b1 that presses the transfer tape T against the transfer target surface, and left and right guide walls b2 positioned to the left and right of the transfer tape T. The tip pressing portion b1 is attached to the back side of the transfer tape T, allowing the user to press the transfer tape T against the transfer target surface through operation. The tip pressing portion b1 has a curved outer surface when viewed from the side.

[0035] <Reel C for winding> The winding reel C winds up the transfer tape T that is fed out from the dispensing reel A via the transfer head B. The winding reel C has a cylindrical winding reel body c1 capable of winding up the transfer tape T, and a winding gear c2 that is integrally provided with the winding reel body c1 with its axis aligned.

[0036] <Reel interlocking mechanism E> The reel interlocking mechanism E is a rotational transmission means that transmits the rotation of the payout reel A to the take-up reel C. The reel interlocking mechanism E includes a payout gear a2 that is rotatably supported on the payout support shaft 10 of the payout reel A and can rotate integrally with the payout reel A, a take-up gear c2 that is rotatably supported on the take-up support shaft 11 and is provided integrally with the take-up reel C, and an intermediate gear e2 that is supported on the intermediate support shaft 12 and interposed between the payout gear a2 and the take-up gear c2 and meshes with these payout gear a2 and take-up gear c2.

[0037] The payout gear a2 is disc-shaped with multiple teeth on its outer circumference that mesh with the intermediate gear e2. The payout gear a2 is rotatably supported on the payout shaft 10 together with the payout reel A. A sliding mechanism is provided between the payout reel C and the payout gear a2 to allow relative rotation between the payout reel C and the payout gear a2 when a torque exceeding a certain level is applied.

[0038] The winding gear c2 is located on the outer surface of the winding reel C and has a disc shape with multiple teeth on its outer edge that mesh with the intermediate gear e2. The winding gear c2 is integrally mounted on the winding reel C with its axis aligned with that of the winding reel C.

[0039] The intermediate gear e2 is rotatably supported on the intermediate support shaft 12 provided on the first case member 2a, while being secured against dislodgement. The intermediate gear e2 is disc-shaped with multiple teeth on its outer circumference that mesh with the payout gear a2 and the winding gear c2. In this embodiment, the payout gear a2 has the largest diameter, and the intermediate gear e2 has the smallest diameter. Therefore, the shaft diameters of the payout support shaft 10, the winding support shaft 11, and the intermediate support shaft 12 are such that the intermediate support shaft 12 has the smallest shaft diameter. In this embodiment, the intermediate support shaft 12 has the lowest strength, so a stress relief means N is provided near the base of the intermediate support shaft 12.

[0040] As shown in Figures 3 and 4, the first case member 2a has a first slit opening 31, a second slit opening 32, and a third slit opening 33 formed in order near the base of the intermediate support shaft 12 to which the intermediate gear e2 is attached. The first slit opening 31 is positioned at the top, the third slit opening 33 is positioned at the bottom, and the second slit opening 32 is positioned between the first slit opening 31 and the third slit opening 33.

[0041] In Figure 3, the first slit opening 31, the second slit opening 32, and the third slit opening 33 are arranged substantially parallel to each other. The first slit opening 31, the second slit opening 32, and the third slit opening 33 extend substantially parallel to the direction of the stress acting on the intermediate gear e2 via the transfer tape T when the transfer tape T is used. That is, as shown in Figure 2(a), a force N1 is applied to the feed gear a2 in the direction of being pulled to the left by the tension of the transfer tape T, and a force N2 is applied to the take-up gear c2 in the direction of being pulled to the right by the tension of the transfer tape T. Therefore, a force acts on the intermediate gear e2, which is located between the feed gear a2 and the take-up gear c2, in a pinching direction along the left-right direction. Thus, the first slit opening 31, the second slit opening 32, and the third slit opening 33 extend along the direction of the force acting on the intermediate gear e2 (left-right direction). Although the direction of tension in the transfer tape T changes slightly depending on the remaining amount of tape, regardless of the remaining amount of tape, the first slit opening 31, the second slit opening 32, and the third slit opening 33 extend substantially parallel to the direction of the stress acting on the intermediate gear e2, and are maintained in a state where the stress acting on the intermediate gear e2 is received by both the first shaft portion 12a and the second shaft portion 12b. In other words, the range of "subjectively" in "the first slit opening 31, the second slit opening 32, and the third slit opening 33 extend substantially parallel to the direction of the stress acting on the intermediate gear e2" is the range due to changes in the remaining amount of tape. In this embodiment, the first slit opening 31, the second slit opening 32, and the third slit opening 33 are included in the stress relief means N.

[0042] The intermediate support shaft 12 has a first shaft portion 12a and a second shaft portion 12b that are divided in the circumferential direction. Specifically, the first shaft portion 12a is positioned above, and the second shaft portion 12b is positioned below the first shaft portion 12a, and they are positioned apart in the vertical direction. The first shaft portion 12a is provided on the first support portion 51 which is positioned between the first slit opening 31 and the second slit opening 32. The second shaft portion 12b is provided on the second support portion 52 which is positioned between the second slit opening 32 and the third slit opening 33.

[0043] A first thickened portion 12a1 is formed at the base of the first shaft portion 12a, with a width along the second slit opening 32 that is wider than that of the tip of the first shaft portion 12a. The tip of the first shaft portion 12a is positioned in the longitudinal center of the first thickened portion 12a1. Similarly, a second thickened portion 12b1 is formed at the base of the second shaft portion 12b, with a width along the second slit opening 32 that is wider than that of the tip of the second shaft portion 12b. The tip of the second shaft portion 12b is positioned in the longitudinal center of the second thickened portion 12b1.

[0044] On the inner surface of the first case member 2a, a projection 53 is formed above the first slit opening 31, and a projection 54 is formed below the third slit opening 33. The amount of protrusion of projection 53 and projection 54 is approximately the same as the amount of protrusion of the first thickened portion 12a1 of the first shaft portion 12a and the amount of protrusion of the second thickened portion 12b1 of the second shaft portion 12b. Therefore, the lower surface of the intermediate gear e2 attached to the intermediate support shaft 12 rests on the upper surfaces of projection 53, projection 54, the first thickened portion 12a1 of the first shaft portion 12a, and the second thickened portion 12b1 of the second shaft portion 12b, thereby positioning the intermediate gear e2 at an appropriate height.

[0045] As shown in Figures 5(a) and 5(b), a locking portion 12na is formed on the outside of the tip of the first shaft portion 12a so as to protrude, which engages with the upper surface of the intermediate gear e2 when the intermediate gear e2 is attached. Similarly, a locking portion 12nb is formed on the outside of the tip of the second shaft portion 12b so as to protrude, which engages with the upper surface of the intermediate gear e2 when the intermediate gear e2 is attached. The amount of protrusion of the locking portion 12na and the locking portion 12nb increases from the tip to the base.

[0046] As shown in Figure 6(a), a circular shaft hole e50 is formed in the center of the intermediate gear e2. When the intermediate gear e2 is attached to the intermediate support shaft 12, the first shaft portion 12a and the second shaft portion 12b of the intermediate support shaft 12 are inserted into the shaft hole e50 of the intermediate gear e2. The diameter of the shaft hole e50 of the intermediate gear e2 is T1.

[0047] In contrast, as shown in Figure 6(b), the distance between the lowest part (most protruding portion) of the locking portion 12na of the first shaft portion 12a and the lowest part (most protruding portion) of the locking portion 12nb of the second shaft portion 12b is T2, which is larger than the diameter T1 of the shaft hole e50 of the intermediate gear e2.

[0048] Therefore, when the intermediate gear e2 is attached to the intermediate support shaft 12, as the first shaft portion 12a and the second shaft portion 12b of the intermediate support shaft 12 pass through the shaft hole e50 of the intermediate gear e2, the first shaft portion 12a and the second shaft portion 12b bend towards each other, and then bend away from each other to return to their original positions. Then, as shown in Figure 6(c), the locking portion 12na of the first shaft portion 12a and the locking portion 12nb of the second shaft portion 12b are locked to the upper surface of the intermediate gear e2, and the attachment of the intermediate gear e2 to the intermediate support shaft 12 is completed.

[0049] The deflection movement of the first shaft portion 12a and the second shaft portion 12b when the intermediate gear e2 is attached to the intermediate support shaft 12 will be explained in detail with reference to Figure 7.

[0050] When the intermediate gear e2 is attached to the intermediate support shaft 12, the intermediate gear e2 is moved toward the base of the intermediate support shaft 12 so that the first shaft portion 12a and the second shaft portion 12b of the intermediate support shaft 12 are inserted into the shaft hole e50 of the intermediate gear e2. Then, as shown in Figure 7(a), first, the locking portion 12na of the first shaft portion 12a and the locking portion 12nb of the second shaft portion 12b are pressed by the inner circumferential surface of the shaft hole e50 of the intermediate gear e2, causing the tip of the first shaft portion 12a and the tip of the second shaft portion 12b to move closer to each other.

[0051] Subsequently, as the intermediate gear e2 is moved further toward the base of the intermediate support shaft 12, as shown in Figure 7(b), the locking portion 12na of the first shaft portion 12a and the locking portion 12nb of the second shaft portion 12b are pressed against the inner circumferential surface of the shaft hole e50 of the intermediate gear e2, causing the tip of the first shaft portion 12a and the tip of the second shaft portion 12b to move closer together. At this time, the base of the first shaft portion 12a and the base of the second shaft portion 12b also move closer together.

[0052] Subsequently, when the entire locking portion 12na of the first shaft portion 12a and the locking portion 12nb of the second shaft portion 12b pass through the shaft hole e50 of the intermediate gear e2, as shown in Figure 6(c), the locking portion 12na of the first shaft portion 12a and the locking portion 12nb of the second shaft portion 12b are no longer pressed against by the inner circumferential surface of the shaft hole e50 of the intermediate gear e2. As a result, the tip of the first shaft portion 12a and the tip of the second shaft portion 12b move away from each other and return to their original positions. Then, the lowermost part of the locking portion 12na of the first shaft portion 12a and the lowermost part of the locking portion 12nb of the second shaft portion 12b lock the upper surface of the intermediate gear e2, and the attachment of the intermediate gear e2 to the support shaft 12 is completed.

[0053] As described above, the transfer tool 1 of this embodiment is a transfer tool that winds a transfer tape T, which is unwound from a dispensing reel A, onto a take-up reel C via a transfer head B, and has a disc-shaped dispensing gear a2, a take-up gear c2, and an intermediate gear e2 (rotation transmission member), and is equipped with a rotation transmission means E that transmits the rotation of the dispensing reel A to the take-up reel C, the intermediate gear e2 is rotatably supported on an intermediate support shaft 12 and the intermediate gear e2 is provided with a stress relief means N that relieves the bending stress when the intermediate gear e2 is attached to the intermediate support shaft 12.

[0054] In this configuration, the bending stress acting when the intermediate gear e2 is installed is relieved by the stress relief means N, so the bending stress is distributed during gear installation and does not concentrate at the base of the intermediate support shaft 12. Therefore, it is possible to prevent the intermediate support shaft 12 from breaking during production assembly. This reduces the defect rate.

[0055] In the transfer device of this embodiment, the intermediate support shaft 12 to which the intermediate gear e2 is attached has a first shaft portion 12a and a second shaft portion 12b that are divided in the circumferential direction, and the stress relief means N includes a slit opening 32 provided inside the first shaft portion 12a and the second shaft portion 12b.

[0056] In this way, when attaching the intermediate gear e2 to the intermediate support shaft 12, the bases of the first shaft portion 12a and the second shaft portion 12b can move toward each other, thus allowing the bending stress to be properly relieved when attaching the intermediate gear e2.

[0057] In the transfer device of this embodiment, the stress relief means N includes a first slit opening 31, a second slit opening 32, and a third slit opening 33 formed in order near the lower end of an intermediate support shaft 12 that rotatably supports the intermediate gear e2. The intermediate support shaft 12 to which the intermediate gear e2 is attached has a first shaft portion 12a and a second shaft portion 12b that are divided in the circumferential direction. The first shaft portion 12a is provided on a first support portion 51 located between the first slit opening 31 and the second slit opening 32, and the second shaft portion 12b is provided on a second support portion 52 located between the second slit opening 32 and the third slit opening 33.

[0058] In this configuration, the intermediate support shaft 12 to which the intermediate gear e2 is attached is divided into a first shaft portion 12a and a second shaft portion 12b, and a second slit opening 32 is provided between the base of the first shaft portion 12a and the base of the second support portion 12b. Therefore, when attaching the intermediate gear e2 to the intermediate support shaft 12, the base of the first shaft portion 12a and the base of the second support portion 12b can move toward each other, thereby appropriately relieving the bending stress when attaching the intermediate gear e2.

[0059] In the transfer tool of this embodiment, a first thickened portion 12a1 is formed at the base of the first shaft portion 12a, with a width along the second slit opening 32 that is wider than that of the tip portion of the first shaft portion 12a, and a second thickened portion 12b1 is formed at the base of the second shaft portion 12b, with a width along the second slit opening 32 that is wider than that of the tip portion of the second shaft portion 12b.

[0060] In this way, the base of the intermediate support shaft 12 can be reinforced by increasing the thickness of the base of the first shaft portion 12a and the base of the second shaft portion 12b.

[0061] In the transfer tool of this embodiment, the first to third slit openings 31 to 33 extend substantially parallel to the direction of the stress acting on the intermediate gear e2 via the transfer tape T when the transfer tape T is used.

[0062] In this way, when the head at the tip of the transfer tool 1 is pressed against the surface, stress is applied to the intermediate gear e2 through the tape T, but this stress can be received by both the first shaft portion 12a and the second shaft portion 12b.

[0063] In the transfer device of this embodiment, the rotational transmission means includes a feeding gear a2 (feeding rotational transmission member) rotatably supported on the feeding support shaft 10 and capable of rotating integrally with the feeding reel A, a winding gear c2 (winding rotational transmission member) rotatably supported on the winding support shaft 11 and capable of rotating integrally with the winding reel C, and an intermediate gear e2 (intermediate rotational transmission member) rotatably supported on the intermediate support shaft 12 and positioned between the feeding gear a2 and the winding gear c2. The stress relief means N is provided to relieve the bending stress when attaching the intermediate gear e2 to the intermediate support shaft 12, which has at least the smallest shaft diameter among the feeding support shaft 10, the winding support shaft 11, and the intermediate support shaft 12.

[0064] In this way, among the feed-out support shaft 10, the winding support shaft 11, and the intermediate support shaft 12, the intermediate support shaft 12, which has the smallest shaft diameter, can be prevented from breaking during production assembly.

[0065] Although embodiments of the present invention have been described above, the configuration of each part is not limited to the embodiments described above.

[0066] For example, in the above embodiment, the reel interlocking mechanism E has an intermediate gear e2 that meshes with the payout gear a2 and the winding gear c2 between the payout gear a2 and the winding gear c2, but is not limited to this. For example, as shown in Figure 8, the reel interlocking mechanism E of the transfer device 101 may have a disc-shaped payout gear a102 (payout rotation transmission member) that is rotatably supported on the payout support shaft 110 and can rotate integrally with the payout reel A, and a disc-shaped winding gear c102 (winding rotation transmission member) that is rotatably supported on the winding support shaft 111 and can rotate integrally with the winding reel C, and the payout gear a102 and the winding gear c102 mesh. In this case, it is sufficient that at least one of the payout gear a102 and the winding gear c102 is provided with a stress relief means to relieve the bending stress when the gear is attached to the support shaft.

[0067] In the above embodiment, the reel interlocking mechanism E has a payout gear a2, a winding gear c2, and an intermediate gear e2, but is not limited to that. For example, as shown in Figure 9, the reel interlocking mechanism E of the transfer device 201 may have a disc-shaped payout pulley a202 that is rotatably supported on a payout support shaft 210 and can rotate integrally with the payout reel A, a disc-shaped winding pulley c202 that is rotatably supported on a winding support shaft 211 and can rotate integrally with the winding reel C, and a belt 251 that is stretched between the payout pulley a202 and the winding pulley c202. In this case, it is sufficient that at least one of the payout pulley a202 and the winding pulley c202 is provided with a stress relief means to alleviate the bending stress when the pulley is attached to the support shaft.

[0068] Furthermore, as shown in Figure 10, for example, the reel interlocking mechanism E of the transfer device 301 may include a disc-shaped dispensing pulley a302 (dispensing rotation transmission member) rotatably supported on a dispensing support shaft 310 and capable of rotating integrally with the dispensing reel A, a disc-shaped winding pulley c302 (winding rotation transmission member) rotatably supported on a winding support shaft 311 and capable of rotating integrally with the winding reel C, disc-shaped intermediate pulleys e302a and e302b (intermediate rotation transmission members) rotatably supported on an intermediate support shaft 312 and positioned between the dispensing pulley a302 and the winding pulley c302, a belt 351 stretched between the dispensing pulley a302 and the intermediate pulley e302a, and a belt 352 stretched between the winding pulley c202 and the intermediate pulley e302b. In this case, it is sufficient that at least one of the pay-out pulley a302, the wind-up pulley c302, and the intermediate pulleys e302a and e302b is provided with a stress-relieving means to alleviate the bending stress when the pulley is attached to the support shaft.

[0069] In the above embodiment, the stress relief means N is provided to relieve the bending stress when attaching the intermediate gear e2 to the intermediate shaft 12, which has the smallest shaft diameter among the pay-out shaft 10, the winding shaft 11, and the intermediate shaft 12, but is not limited to this. The stress relief means N may be provided to relieve the bending stress when attaching the gear to at least one of the shafts of the pay-out shaft 10, the winding shaft 11, and the intermediate shaft 12. For this reason, the stress relief means N may be formed near the lower end of the pay-out shaft 10 that rotatably supports the pay-out gear a2, or near the lower end of the winding shaft 11 that rotatably supports the winding gear c2.

[0070] In the above embodiment, the stress relief means N is formed as first to third slit openings 31 to 33, but it is not limited to this. The configuration of the stress relief means N is not limited to first to third slit openings 31 to 33, but is acceptable as long as it distributes the bending stress during gear installation so that it does not concentrate at the base of the support shaft.

[0071] Furthermore, even when the first to third slit openings 31 to 33 are formed as stress relaxation means N, the direction in which the first to third slit openings 31 to 33 extend is arbitrary.

[0072] In the above embodiment, the intermediate support shaft 12 to which the intermediate gear e2 is attached is divided into a first shaft portion 12a and a second shaft portion 12b, but it is not limited to this. The number of divisions in the support shaft to which the gear is attached, and the shape of the divided shaft portions are arbitrary.

[0073] For example, as shown in Figures 11(a) and 11(b), the support shaft to which the gear is attached may be divided into three parts.

[0074] In Figure 11(a), the support shaft 512 has three circumferentially divided first to third shaft portions 512a to 512c, and first to fourth openings 531 to 534 are formed near the base of the support shaft 512. The first shaft portion 512a is positioned between the first opening 531 and the fourth opening 534, the second shaft portion 512b is positioned between the second opening 532 and the fourth opening 534, and the third shaft portion 512c is positioned between the third opening 533 and the fourth opening 534. On the outside of the tips of the first to third shaft portions 512a to 512c, locking portions 512na to 512nc are formed to protrude, which engage with the upper surface of the intermediate gear e2 when the intermediate gear e2 is attached. The amount of protrusion of the locking portions 512na to 512nc increases from the tip to the base of the locking portions 512na to 512nc.

[0075] In this case, when the intermediate gear e2 is attached to the intermediate support shaft 512, the intermediate gear e2 is moved toward the base of the intermediate support shaft 512 so that the first to third shaft portions 512a to 512c of the intermediate support shaft 512 are inserted into the triangular shaft hole e550 of the intermediate gear e2 (in Figure 11(a), the shape and size of the shaft hole e550 are shown by a dotted line). As a result, the locking portions 512na to 512nc of the first to third shaft portions 512a to 512c are pressed by the inner circumferential surface of the shaft hole e550 of the intermediate gear e2, causing the tips of the first to third shaft portions 512a to 512c to move closer to each other. At the same time, the bases of the first to third shaft portions 512a to 512c also move closer to each other. Subsequently, when the tips of the first to third shaft portions 512a to 512c move away from each other and return to their original positions, the upper surface of the intermediate gear e2 is locked by the locking portions 512na to 512nc of the first to third shaft portions 512a to 512c, and the attachment of the intermediate gear e2 to the support shaft 512 is completed.

[0076] Figure 11(b) shows an example in which the shapes of the first to third shaft portions 512a to 512c, the locking portions 512na to 512nc, and the first to fourth openings 531 to 534 differ from those in Figure 11(a). In the case of Figure 11(b), the shaft hole e550 of the intermediate gear e2 is substantially similar in shape to the fourth opening 534, and the shape and size of the shaft hole e50 are shown by a dotted line.

[0077] Furthermore, as shown in Figures 12(a) and 12(b), the support shaft to which the gear is attached may be divided into four sections.

[0078] In Figure 12(a), the support shaft 612 has four circumferentially divided shaft portions 612a to 612d, and first to fifth openings 631 to 635 are formed near the base of the support shaft 612. The first shaft portion 612a is positioned between the first opening 631 and the fifth opening 635, the second shaft portion 612b is positioned between the second opening 632 and the fifth opening 635, the third shaft portion 612c is positioned between the third opening 633 and the fifth opening 635, and the fourth shaft portion 612d is positioned between the fourth opening 634 and the fifth opening 635. On the outside of the tips of the first to third shaft portions 612a to 612d, locking portions 612na to 612nd are formed to protrude, which engage with the upper surface of the intermediate gear e2 when the intermediate gear e2 is attached. The amount of protrusion of the locking portions 612na to 612nd increases from the tip to the base of the locking portions 612na to 612nd.

[0079] In this case, when the intermediate gear e2 is attached to the intermediate support shaft 612, the intermediate gear e2 is moved toward the base of the intermediate support shaft 612 so that the first to fourth shaft portions 612a to 612d of the intermediate support shaft 612 are inserted into the square-shaped shaft hole e650 of the intermediate gear e2 (in Figure 12(a), the shape and size of the shaft hole e650 are shown by a dotted line). As a result, the locking portions 612na to 612nd of the first to fourth shaft portions 612a to 612d are pressed by the inner circumferential surface of the shaft hole e650 of the intermediate gear e2, causing the tips of the first to fourth shaft portions 612a to 612d to move closer to each other. At the same time, the bases of the first to fourth shaft portions 612a to 612d also move closer to each other. Subsequently, when the tips of the first to fourth shaft sections 612a to 612d move away from each other and return to their original positions, the upper surface of the intermediate gear e2 is locked by the locking parts 612na to 612nd of the first to fourth shaft sections 612a to 612d, and the attachment of the intermediate gear e2 to the support shaft 612 is completed.

[0080] Figure 12(b) shows an example where the shapes of the first to fourth shaft portions 612a to 612d, the locking portions 612na to 612nd, and the first to fifth openings 631 to 635 differ from those in Figure 12(a). In Figure 12(b), the shaft hole e650 of the intermediate gear e2 is substantially similar in shape to the fifth opening 635, and the shape and size of the shaft hole e650 are shown by a dotted line.

[0081] In the above embodiment, the transfer tool can be anything that transfers the transfer material to the object to be transferred. In other words, the transfer material is not limited to the correction tape (thin film correction agent) shown in this embodiment, but may be, for example, tape glue or decorative agent (decorative tape).

[0082] In the above embodiment, the transfer tool may be a so-called disposable type that can no longer be used once the transfer tape is used up, or it may be a so-called refillable type in which a refill holding the transfer tape can be attached to the case.

[0083] In the above embodiment, the intermediate gear e2 constituting the reel linkage mechanism E is not limited to a single gear but may consist of multiple gears. The configuration of the reel linkage mechanism E is arbitrary as long as it transmits the rotation of the payout reel A to the winding reel C.

[0084] Other configurations can also be modified in various ways without departing from the spirit of the present invention. [Explanation of symbols]

[0085] 1 Transfer tool A. Reel for dispensing B Transfer head C Winding reel E Reel interlocking mechanism (rotation transmission means) 10. Spindle for feeding 11 Winding support shaft 12 Intermediate support shaft 12a 1st shaft part 12a1 1st thick part 12b 2nd shaft part 12b1 2nd thick part a2. Feed-out gear (rotation transmission member) c2 Winding gear (rotation transmission member) e2 Intermediate gear (rotation transmission member) 31 First slit opening 32 Second slit opening 33 Third slit opening 51 1st support part 52 Second support part 101 Transfer Tool 110 Spindle for feeding 111 Winding support shaft 112 Intermediate support shaft a102 Feed-out gear (rotation transmission member) c102 Winding gear (rotation transmission member) 201 Transfer Tool 210 Spindle for feeding 211 Winding support shaft a202 Feed pulley (rotation transmission member) c202 Winding pulley (rotation transmission member) 251 belt 301 Transfer Tool 310 Spindle for feeding 311 Winding support shaft 312 Intermediate support shaft a302 Feed pulley (rotation transmission member) c302 Winding pulley (rotation transmission member) e302a Intermediate pulley (rotation transmission member) e302b Intermediate pulley (rotation transmission member) 351, 352 belts T Transfer Tape N stress relaxation means

Claims

1. A transfer device that winds a transfer tape, which is dispensed from a dispensing reel, onto a take-up reel via a transfer head, It has a plurality of disc-shaped rotation transmission members and is equipped with a rotation transmission means that transmits the rotation of the unwinding reel to the winding reel, Each rotational transmission member is rotatably supported on a pivot shaft. The support shaft has multiple shaft portions that are divided in the circumferential direction. A stress relief means is provided for at least one of the plurality of rotational transmission members. The stress-relieving means is characterized by providing an opening that sandwiches the base of the shaft portion in the direction in which the shaft portion deforms when the rotation transmission member is attached to the support shaft, thereby allowing the base portion to move in the direction in which the shaft portion deforms when the rotation transmission member is attached to the support shaft, thereby relieving the bending stress when the rotation transmission member is attached to the support shaft compared to the case where there is no opening.

2. The transfer device according to claim 1, characterized in that the stress relief means includes openings provided on the inside of the plurality of shaft portions.

3. The stress relief means includes a first slit opening, a second slit opening, and a third slit opening. The support shaft has a first shaft portion and a second shaft portion that are divided in the circumferential direction. The first shaft portion is provided on the first support portion which is positioned between the first slit opening and the second slit opening, The transfer device according to claim 2, characterized in that the second shaft portion is provided on a second support portion disposed between the second slit opening and the third slit opening.

4. At the base of the first shaft portion, a first thickened portion is formed, the width of which is wider than that of the tip of the first shaft portion, along the second slit opening. The transfer tool according to claim 3, characterized in that a second thickened portion is formed at the base of the second shaft portion, the thickness of which is wider than that of the tip portion of the second shaft portion and is along the second slit opening.

5. The transfer tool according to claim 3 or 4, characterized in that the first to third slit openings extend substantially parallel to the direction of the stress acting on the rotation transmission member via the transfer tape when the transfer tape is used.

6. The rotation transmission means is A feeding rotation transmission member is rotatably supported on the feeding support shaft and can rotate integrally with the feeding reel, A winding rotation transmission member is rotatably supported on the winding support shaft and can rotate integrally with the winding reel, It has an intermediate rotation transmission member that is rotatably supported on an intermediate support shaft and positioned between the unwinding rotation transmission member and the winding rotation transmission member, The transfer device according to any one of claims 1 to 4, characterized in that the stress-relieving means is provided to relieve the bending stress when attaching the rotation transmission member to at least the support shaft with the smallest shaft diameter among the dispensing support shaft, the winding support shaft, and the intermediate support shaft.

7. The transfer device according to any one of claims 1 to 4, characterized in that the rotational transmission member is a gear.

8. The transfer device according to any one of claims 1 to 4, characterized in that the rotational transmission member is a pulley.

Citation Information

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