Masking tape winding device

Abstract

To provide a winder for a masking tape that can wind up a used masking tape using a waste without using s special material as well as winding up a used masking tape applied to a position to which a user can hardly reach the hand.SOLUTION: A device is a winder for a used masking tape, comprising a shaft part and a holding part, the shaft part and the holding part are arranged in series, the shaft part can fix one or more core materials of tape rolls detachably.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a masking tape winding device. [Background technology]

[0002] When painting exterior walls, applying waterproof paint, sealing with caulking material, etc., masking tape is applied to non-working areas of the building to prevent paint or caulking material from getting on areas other than the work area. Also, by using masking tape to protect the area, the boundary between the work area and the non-working area can be beautifully finished. After work is completed, the masking tape is removed from the non-working areas.

[0003] When peeling off used masking tape, the end of the masking tape that has been applied is peeled off, the end of the masking tape is attached to a scraper, the scraper is rotated with both hands, and the used masking tape is wound up on the scraper. When peeling off the masking tape, the worker's hands and clothes can become contaminated with the used masking tape, making it a cumbersome task. If the worker's hands or clothes become dirty, the dirt can cause the building to become dirty. In some cases, the masking tape is applied over a length of several tens of meters, making it an extremely cumbersome task. In addition, when winding up the used masking tape on the scraper at a high place, both hands are occupied, making it dangerous.

[0004] In addition to the method of recovering masking tape using a scraper, a method of recovering masking tape using an apparatus described in Patent Document 1 or Patent Document 2 below is known.

[0005] Patent Document 1 describes a masking tape recovery device, which includes a cylinder, handles on both ends of the cylinder, and a film stored in a folded state inside the cylinder. The film stored inside is pulled out and used masking tape is wound up on the film so as to cover the cylindrical part of the cylinder.

[0006] Patent Document 2 describes a masking tape recovery device, which includes two plate-shaped handle bars, a handle shaft whose both ends are supported by the two handle bars, and a tapered roller whose both ends are rotatably supported by the two handle bars. The tapered roller is tapered with an outer diameter at the center that is smaller than the outer diameter at both ends, and is configured so that it can be separated into upper and lower parts at the center. The tapered roller is separated, and two masking tape cores are inserted into the center, and used masking tape is wound up around the cores. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2016-89604 A [Patent Document 2] Japanese Patent Application Publication No. 7-328499 Summary of the Invention [Problem to be solved by the invention]

[0008] The winding device of Patent Document 1 winds up used masking tape onto a film stored inside the device, and after the winding work is completed, the masking tape that has been wound up together with the film is discarded. This device is excellent in that it is less likely to contaminate the device or workers. However, this device requires the preparation of a cylindrical film as a special material. In addition, the cylindrical film becomes surplus industrial waste that is not generated in normal painting or sealing.

[0009] The winding device of Patent Document 2 is said to peel off the masking tape by using the friction of the tapered roller when the user grasps the handle shaft and moves the device in the longitudinal direction of the masking tape while pressing the masking tape core against the surface of the masking tape.

[0010] The device of Patent Document 2, which employs the above-mentioned configuration and method of use, is not suitable for removing masking tape applied in places that are difficult for users to reach. In addition, if the winding device is pressed against the caulking material or paint when it is not yet cured, the winding device and the user's hands will become contaminated. In addition, if the tapered roller is pressed against uncured caulking material or paint, the applied caulking material or paint will peel off, significantly impairing the aesthetic appearance of the finished product.

[0011] To provide a masking tape winding device capable of winding up used masking tape by utilizing waste materials without the need for special materials and capable of winding up used masking tape applied in a position that is difficult for a user to reach. [Means for solving the problem]

[0012] The above-mentioned problems are solved by a masking tape winding device (hereinafter sometimes simply referred to as a winding device), which is a device for winding up used masking tape, the device having a shaft portion and a gripping portion arranged in series, and the shaft portion being capable of removably fixing the core material of one or more tape rolls.

[0013] The above winding device has a shape in which the shaft portion and the gripping portion are arranged in series, so that it is possible to smoothly wind up used masking tape that has been applied to a place that is difficult for the user to reach. In addition, since the used masking tape is wound around the core material of the tape roll fixed to the shaft portion, no special material such as the above-mentioned film is required, and the used masking tape can be wound up using the core material of the tape roll, which is a waste material. After collecting the used masking tape, the core material is removed from the shaft portion, and the used masking tape wound around the core material is discarded. The user can wind up and discard the used masking tape without touching the used masking tape.

[0014] In the masking tape winding device, the shaft portion is preferably provided with a mechanism for freely changing the outer diameter thereof, thereby enabling the core material of the tape roll to be repeatedly attached to and detached from the shaft portion.

[0015] In the masking tape winding device, the shaft portion is preferably configured to be rotatable with respect to the grip portion automatically or manually, so that a user can rotate the shaft portion while holding the grip portion, thereby more smoothly winding the used masking tape onto the core material of the tape roll. Effect of the Invention

[0016] According to the present invention, it is possible to provide a masking tape winding device that can wind up used masking tape using waste materials without the need for special materials, and that can wind up used masking tape that has been applied in locations that are difficult for users to reach. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a front view of a masking tape winding device according to a first embodiment. [Diagram 2] 2 is a cross-sectional view showing a mechanism for changing the outer diameter built into a shaft portion of the masking tape take-up device of FIG. 1. [Diagram 3] FIG. 2 is an explanatory diagram showing how masking tape applied at a high place is wound up by the winding device of FIG. 1. [Figure 4] FIG. 13 is a diagram illustrating the angle formed by the masking tape when the masking tape is peeled off. [Diagram 5] FIG. 11 is a front view of a masking tape winding device according to a second embodiment. [Figure 6] 13A and 13B are diagrams showing another example of a mechanism for changing the outer diameter built into the shaft portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, embodiments of the masking tape winding device of the present invention will be described. Each of the embodiments described below is merely a limited example of the present invention, and the technical scope of the present invention is not limited to the exemplified embodiments.

[0019] [First embodiment] A masking tape winding device 1 according to a first embodiment is shown in Figs. 1 to 3. The winding device 1 of this embodiment includes a shaft portion 11 and a gripping portion 12. The shaft portion 11 and the gripping portion 12 are arranged in series, and the overall shape of the device is rod-shaped as shown in Fig. 1. As shown in Fig. 3, the shaft portion 11 has a length that allows one or more core materials 21 of a tape roll to be detachably fixed thereto. In the example of Fig. 3, four core materials of used masking tape are fixed, but the number of core materials and the length of the shaft portion can be changed as appropriate.

[0020] As shown in FIG. 2, in the winding device 1 of this embodiment, the shaft portion 11 is a cylindrical rod-like member having a cavity therein, and a mechanism for freely changing the outer diameter of the shaft portion 11 is built into the cavity. The mechanism in FIG. 2 is configured to be able to switch between a state in which the shaft portion 11 is expanded by raising the holding member 31, which is a long member extending along the extension direction of the shaft portion 11, and a state in which the shaft portion 11 is reduced in diameter compared to a state in which the shaft portion 11 is expanded in diameter by lowering the holding member 31. Note that in FIG. 2, the gripping portion 12 is omitted and only the main parts of the shaft portion 11 are shown. The same applies to FIG. 6 described later.

[0021] The expanded and contracted states can be switched by the operating unit 32. The core material 21 is inserted into the shaft portion 11 in the contracted state, and in this state, the holding member 31 is raised. The core material 21 is held by the shaft portion 11, the diameter of which is expanded by the holding member 31. When removing the core material 21, the operating unit 32 is operated to lower the holding member 31, and the core material 21 can be easily removed from the shaft portion 11. The holding member 31 passes through a through hole provided in the shaft portion 11, rises so as to protrude from the cylindrical surface of the shaft portion 11, and descends so as to be lowered below the cylindrical surface of the shaft portion.

[0022] In the example of FIG. 2, the holding member 31 is raised and lowered using a link mechanism. The operating unit 32 is configured as a lever, and the central part of the operating unit 32 is fixed to the shaft part 11 by an axis. One end of the operating unit 32 constitutes a part for a user to operate with his / her fingers. When one end of the operating unit 32 is moved, the other end of the operating unit is displaced with the axis as a fulcrum. The other end of the operating unit 32 is fixed to one end of the first link member 33 via a first joint 41. The other end of the first link member 33 is fixed to one end of the second link member 34 via a second joint 42. The other end of the second link member 34 is fixed to one end of the holding member 31 via a third joint 43. The other end of the holding member 31 is fixed to one end of the third link member 35 via a fourth joint 44. The other end of the third link member 35 is fixed to the fourth link member 36 via a fifth joint 45. The fourth link member 36 is fixed so as not to be displaced relative to the shaft portion 11. The first link member 33, the second link member 34, the third link member 35, and the fourth link member 36 are each formed of a rod-shaped member. In addition, the above-mentioned joints are provided with a rotation direction restriction means so as to be able to rotate and bend in only one direction.

[0023] When the user operates the operating unit 32, as shown in the lower part of Fig. 2, the other end of the operating unit 32 is displaced so as to approach the holding member 31, and the second link member 34 and the third link member 35 are bent so as to face diagonally upward toward the holding member 31, causing the holding member 31 to rise. An uneven portion is formed on the holding member 31 to prevent the core material 21 from slipping. The uneven portion has a triangular shape that continues in the longitudinal direction when viewed from the side.

[0024] In the winding device 1 of this embodiment, the grip portion 12 is a cylindrical member with an outer diameter smaller than that of the shaft portion 11 so that the user can easily grip it. The shaft portion 11 is fixed to the grip portion 12 in a rotatable state. The grip portion 12 has an electric motor (not shown) built therein. The electric motor is activated by operating a switch 121 provided on the grip portion 12. The shaft portion 11 rotates in the circumferential direction of the shaft portion 11 by the power of the electric motor, as shown by the arrow in FIG. 1.

[0025] The winding device 1 of this embodiment is used, for example, as shown in FIG. 3. First, the holding member 31 of the shaft portion 11 is lowered, and the hole of the core material 21 of the annular tape roll is inserted into the shaft portion 11. In this state, the operating portion 32 is operated to raise the holding member 31, and the core material 21 is securely fixed. Next, one end of the used masking tape 42 attached to the workpiece 43 to which the caulking material 41 has been applied is peeled off and attached to the core material 21. In this state, the switch 121 is pressed to rotate the shaft portion 11, and the used masking tape 42 is wound around the core material. At this time, the grip portion 12 does not rotate. The user holds the grip portion with his hand to operate the winding device.

[0026] In the winding device 1 of this embodiment, the entire device including the shaft portion 11 and the gripping portion 12 is in a rod-like form. Therefore, when winding up the masking tape 42, the winding device can be moved to an optimal position where the masking tape 42 is not torn or a large resistance is not applied to the winding device 1. As shown in FIG. 4, a peeling angle θ between the surface of the workpiece 43 to which the masking tape was attached and the surface of the peeled masking tape 42 is assumed. If the peeling angle θ becomes large, the masking tape 42 becomes more likely to tear. In order to make the masking tape less likely to tear, it is preferable to set θ to 100° or less. The workability of peeling off the masking tape is good when θ is 20° or more. For this reason, the peeling angle is preferably set to 20° or more and 100° or less, and more preferably set to 85° or more and 95° or less. Since the winding device 1 of this embodiment is rod-shaped as a whole, even if the area where the masking tape has been applied is in a location that is difficult for the user to reach, it is easy to move the winding device 1 so that the peeling angle θ is the optimal angle.

[0027] [Second embodiment] The winding device 1b of this embodiment differs from the winding device 1 described above in the configuration of the gripping portion 12b. As shown in FIG. 5, the winding device 1b of this embodiment has a cylindrical gripping portion 12b and an axial member 121b inserted into the gripping portion 12b. One end of the axial member 121b is fixed to the shaft portion 11. The other end of the axial member 121b is bent into a crank shape. The gripping portion 12b is supported by the axial member 121b in a state in which it can rotate relative to the axial member 121b.

[0028] The user holds the grip portion 12b with one hand and rotates the crank-shaped bent portion of the shaft member 121b with the other hand. This causes the shaft member 121b and the shaft portion 11 connected to the shaft member 121b to rotate together with respect to the grip portion 12b. By rotating the shaft portion 11 in this manner, the masking tape 42 can be wound around the core material of the tape roll fixed to the shaft portion 11 in the same manner as described above.

[0029] The mechanism for changing the outer diameter of the shaft portion is not limited to the above-mentioned examples of the winding devices 1 and 1b. The mechanism may be as shown in FIG. 6. In the example of FIG. 6, the shaft portion 11c is a rod-shaped member having a cylindrical member 111, a first support member 112 attached in a state in which it can be displaced in the axial direction of the cylindrical member 111, a second support member 113 fixed to the cylindrical member 111, a plurality of first link members 114, a plurality of second link members 115, and a plurality of holding members 116. The first support member 112 and the second support member 113 are both ring-shaped members. One end of each of the plurality of first link members 114 is connected to an end of the first support member 112 via a first joint. The other end of each of the plurality of first link members 114 is connected to one end of each of the plurality of holding members 116 via a second joint. One end of each of the plurality of second link members 115 is connected to an end of the second support member 113 via a third joint. The other end of each of the plurality of second link members 115 is connected to the other end of the holding member 116 via a fourth joint.

[0030] As shown by the arrow in FIG. 6, by displacing the first support member 112 in a direction approaching the second support member 113, the first link members 114 and the second link members 115 are bent so as to face obliquely upward toward the holding member 116, as shown in FIG. 6. As a result, the holding members 116 are displaced toward the radially outer side of the shaft portion 11b, and the outer diameter of the shaft portion 11c becomes larger. By displacing the first support member 112 in a direction away from the second support member, the holding members 116 return to their original state, and the outer diameter of the shaft portion 11c becomes smaller. The first link member 114, the second link member 115, and the holding member 116 are all composed of rod-shaped members.

[0031] The mechanism for changing the outer diameter of the shaft is not limited to the above-mentioned lifting mechanism using a link and a joint, and may be any mechanism that allows the core material to be attached or detached by changing the outer diameter. For example, the shaft may be made of an elastic material, and compressed air may be stored inside the shaft to increase the outer diameter of the shaft.

[0032] The grip portion is not limited to the above example as long as the shaft portion and the grip portion are arranged in series and have a shape that can be held by a user. For example, the grip portion may have a gun grip shape like an electric drill. [Explanation of symbols]

[0033] 1 Masking tape winding device 1b Masking tape winding device 11 Shaft section 11c Shaft section 12 Grip part 12b Grip part 21 Core material 42 Masking tape

Claims

1. This is a device that winds up used masking tape. The device includes a shaft portion and a grip portion, The shaft portion and the grip portion are rod-shaped and arranged in series, the shaft portion is capable of removably fixing one or more cores of a tape roll; The masking tape winding device rotates the core material of the tape roll at a position away from the applied masking tape, thereby winding up used masking tape onto the core material of the tape roll.

2. 2. The masking tape take-up device according to claim 1, wherein the shaft portion includes a mechanism for freely changing the outside diameter of the shaft portion.

3. 3. The masking tape winding device according to claim 1, wherein the shaft portion is configured to be rotatable with respect to the gripping portion automatically or manually.

4. A method for winding masking tape onto a core material of the tape roll fixed to the shaft portion using the winding device described in claim 1, wherein the core material of the tape roll is rotated at a position away from the affixed masking tape, thereby winding used masking tape onto the core material of the tape roll.

5. A method for winding masking tape as described in claim 4, wherein the core material of the tape roll is waste material.

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