Adhesive body attachment device and adhesive body attachment method

Abstract

An adhesive body attachment device (100) that unrolls an adhesive body (1) from a roll (11) of the adhesive body (1) and attaches the adhesive body (1) to an object comprises: a holding part (17) that holds the roll (11); a pressing part (12) that presses the adhesive body (1) against the object; a cutting part (20) that cuts the adhesive body (1); and a support body (30) that fixes the adhesive body (1). The cutting part (20) is configured to be able to cut the adhesive body (1) in a state in which the adhesive body (1) is fixed by the support body (30).

Description

Adhesive Body Attachment Device and Adhesive Body Attachment Method

[0001] The present invention relates to an adhesive body attachment device and an adhesive body attachment method.

[0002] Devices for attaching an adhesive body such as an adhesive sheet or an adhesive tape to various adherents such as metal, glass, wood, paper, cardboard, plastic materials, etc. are known. Such devices facilitate the attachment of the adhesive body to the adherent and improve work efficiency. By providing a member for cutting the attached adhesive body in the device, the work can be made more efficient, thus improving the value of the device.

[0003] Patent Document 1 discloses a tape cutter that can perform a series of operations of feeding out a tape by a certain length, cutting it, and attaching it to an object with a single operation by the user. Further, Patent Document 2 discloses a dispenser with a cutting blade that can more easily cut the supplied tape.

[0004] Japanese Patent Application Laid-Open No. 2018-150160, Japanese Patent Application Laid-Open No. 2022-28392

[0005] According to the tape cutter of Patent Document 1, a series of operations of fixing and cutting a firm tape can be performed with a single operation by the user. According to the dispenser of Patent Document 2, the tape is sandwiched and fixed between the base of the operation piece and the tape receiving cylinder by deforming an operation piece, which is a part of the housing for accommodating the tape, so as to push it down into the housing, and the blade attached to the lower end of the operation piece contacts the tape and cuts it. [[ID=​​​​​​​One aspect of the present invention has the following configuration: An adhesive application device for unwinding an adhesive from a winding body and applying it to an object, comprising: a holding part for holding the winding body; a pressing part for pressing the adhesive onto the object; a cutting part for cutting the adhesive; and a support for fixing the adhesive, wherein the cutting part is configured to cut the adhesive while the support is fixing the adhesive.

[0009] Another aspect of the present invention comprises the following configuration: an adhesive application method for unwinding an adhesive from a winding body and attaching it to an object, comprising: pressing the adhesive onto the object to attach it; fixing the adhesive attached to the object; and cutting the fixed adhesive.

[0010] According to the present invention, the cutting ability of adhesive materials can be improved.

[0011] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by referring to the accompanying drawings and reading through the embodiments for carrying out the invention described below (hereinafter referred to as "embodiments").

[0012] Figure 1 is a perspective view of an adhesive application device according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the adhesive application device. Figure 3 is a cross-sectional view of the vicinity of the tip, showing the cutting section when it is retracted. Figure 4 is a top view of the vicinity of the tip, showing the cutting section when it is retracted. Figure 5 is a perspective view of the vicinity of the tip, showing the cutting section when it is retracted. Figure 6 is a cross-sectional view of the vicinity of the tip, showing the cutting section when it is protruding. Figure 7 is a top view of the vicinity of the tip, showing the cutting section when it is protruding. Figure 8 is a perspective view of the vicinity of the tip, showing the cutting section when it is protruding. Figure 9 is a schematic diagram showing the state at the start of work in the process of applying an adhesive to an object using the adhesive application device. Figure 10 is a schematic diagram showing the state with the cutting section protruding in the process of applying an adhesive to an object using the adhesive application device. Figure 11 is a schematic diagram showing the state of cutting the adhesive using the cutting section in the process of applying an adhesive to an object using the adhesive application device. Figure 12 is a conceptual diagram illustrating the angle between the tip surface of the cutting blade and the adhesive material. Figure 13 is a conceptual diagram illustrating the relationship between the angle of the tip surface of the blade and the contact surface with the adhesive material, where (a) shows an example with a small angle and (b) shows an example with a large angle. Figure 14 is a magnified view of the guide part and the blade. Figure 15 is a conceptual diagram illustrating the shape of the opening and the guide part, where (a) shows a rectangular opening, (b) shows a circular opening, and (c) shows a guide part that also serves as a pressing part.

[0013] Hereinafter, examples of embodiments of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of an adhesive body application device 100 according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the adhesive body application device 100. The adhesive body application device 100 is a device that dispenses an adhesive body 1, such as a thread-like adhesive, and applies it to an object. For example, an operator can hold the device in their hand and slide it across the surface of the object to apply the adhesive body 1 to the object in a drawing-like manner.

[0014] The adhesive application device 100 has a housing 10, which is made of, for example, resin and can be grasped by an operator. The housing 10 houses a winding 11 of the adhesive 1 inside. The winding 11 is held by a holding part 17 that is rotatably attached to the inner wall of the housing 10. The adhesive application device 100 can unwind the adhesive 1 from the winding 11 to the outside of the housing 10 and apply it to an object.

[0015] The adhesive application device 100 is provided with a pressing part 12 located at the tip 16 of the housing 10, which presses the adhesive 1 against the object. In this example, a nozzle protruding from the tip 16 of the housing 10 functions as the pressing part 12, and more specifically, the peripheral wall surrounding the internal space of the nozzle functions as the pressing part 12. As shown in Figures 9 and 10, which will be described later, the pressing part 12 can attach the adhesive 1 to the object W by pressing it.

[0016] The adhesive application device 100 is equipped with a cutting section 20 for cutting the adhesive 1. Figure 3 is a cross-sectional view of the vicinity of the tip 16, showing the cutting section 20 in its retracted position. Figure 4 is a top view of the vicinity of the tip 16, showing the cutting section 20 in its retracted position. Figure 5 is a perspective view of the vicinity of the tip 16, showing the cutting section 20 in its retracted position. The cutting section 20 is located at the tip 16, near the pressing section 12, and as shown in Figure 11, which will be described later, it protrudes to the outside of the housing 10 when cutting the adhesive 1, allowing it to cut the adhesive 1. Details of the cutting section 20 will be described later.

[0017] The adhesive application device 100 is provided with a support 30 located inside the housing 10, between the winding body 11 and the pressing part 12, for fixing the adhesive body 1. The adhesive body 1 is not fixed by the support 30 when it is unwound from the winding body 11. The support 30 is interlocked with the cutting part 20, and when the adhesive body 1 is cut by the cutting part 20, the support 30 holds and fixes the adhesive body 1 to the extent that it is not unwound from the winding body 11, thereby preventing the adhesive body 1 from moving easily and enabling stable cutting of the adhesive body 1 by the cutting part 20. In this disclosure, the time of cutting of the adhesive body 1 includes not only the moment of cutting but also the time before and after cutting. The support 30 is formed from a resin material such as silicone, PTFE (Polytetrafluoroethylene), PP (Polypropylene), or POF (Polyolefin Film). The support 30 is composed of a roller-shaped member with a curved surface. Details of the support 30 will be described later.

[0018] When cutting the adhesive material 1, the operator slides the operating part 42 of the sliding member 41, which is slidably mounted relative to the housing 10, from the state shown in Figures 1 to 5 toward the tip portion 16. This operation causes the cutting portion 20 to protrude to the outside of the housing 10. Figure 6 is a cross-sectional view of the vicinity of the tip portion 16, showing the cutting portion 20 when it is protruding. Figure 7 is a top view of the vicinity of the tip portion 16, showing the cutting portion 20 when it is protruding. Figure 8 is a perspective view of the vicinity of the tip portion 16, showing the cutting portion 20 when it is protruding.

[0019] In other words, the cutting section 20 is configured to slide relative to the housing 10 between a cutting position that protrudes beyond the tip section 16 (see Figures 6 to 8) and a storage position that does not protrude beyond the tip section 16 (see Figures 1 to 5).

[0020] The adhesive application device 100 is further configured integrally with the slide member 41 and includes a guide portion 13 that guides the adhesive 1 from the pressing portion 12 to the cutting portion 20. The guide portion 13 has a slit-shaped opening 14 at its tip edge. The cutting portion 20 has a blade 21 that protrudes into the opening 14. That is, the guide portion 13 functions to guide the adhesive 1 from the pressing portion 12 to the cutting portion 20 when the blade 21, which is the cutting portion 20, is protruding (Figures 6 to 8).

[0021] The support 30 will now be described. The support 30 is provided inside the housing 10. The housing 10 has an inner wall 15 that defines a space through which the adhesive 1 can be inserted, and the support 30 can fix the adhesive 1 by sandwiching it between itself and the inner wall 15. The inner wall 15 is formed of a resin material such as silicone, PTFE (Polytetrafluoroethylene), PP (Polypropylene), or POF (Polyolefin Film).

[0022] The adhesive application device 100 is equipped with a mechanism 40 that allows the support body 30 to be moved in conjunction with the operation of the operating unit 42 by the operator. The mechanism 40 can move the support body 30 to fix the adhesive body 1 when the cutting unit 20 is in the cutting position as shown in Figures 6 to 8, and move the support body 30 to a position away from the adhesive body 1 when the cutting unit 20 is in the storage position as shown in Figures 1 to 5.

[0023] The mechanism 40 includes, in addition to the slide member 41 and operating section 42 described above, a pair of slits 43, 43, a shaft 44, and a link mechanism 45. The slide member 41 is slidable relative to the housing 10 and has a cutting section 20 at one end. The operating section 42 is provided on the slide member 41 and can be operated by an operator.

[0024] The pair of slits 43, 43 are located in the internal components of the housing 10 and include one slit 43 positioned on the front side of the paper in Figures 3 and 6, and the other slit 43 positioned on the back side of the paper in Figures 3 and 6. Each slit 43 includes a first portion 43a and a second portion 43b. As shown in Figures 3 and 6, the first portion 43a is formed to extend in a direction substantially parallel to the path of the adhesive body 1 from the winding body 11 to the pressing portion 12 when the cutting portion 20 is stored. As shown in Figure 3, the second portion 43b is formed to extend in a direction intersecting the path of the adhesive body 1 from the winding body 11 to the pressing portion 12 when the cutting portion 20 is stored.

[0025] The shaft 44 is attached to the sliding member 41 so as to span between a pair of slits 43, 43. That is, the shaft 44 extends in a direction perpendicular to the plane of paper in Figures 3 and 6, with one end slidably positioned in one slit 43 located on the front side of the plane of paper in Figures 3 and 6, and the other end slidably positioned in the other slit 43 located on the back side of the plane of paper in Figures 3 and 6.

[0026] The link mechanism 45 is positioned outside each of the pair of slits 43, 43, and connects the shaft 44 to the support 30 with the support 30 spanning between the pair of slits 43, 43. Both ends of the support 30 are connected to the link mechanism 45 by shaft members similar to those of the shaft 44, as shown in Figures 3 and 6. The link mechanism 45 is rotatably connected to at least the shaft 44.

[0027] When the operator slides the operating unit 42 to the left side in Figure 3 or to the right side in Figure 6, the sliding member 41 also slides in conjunction. At this time, the shaft 44 that spans between the pair of slits 43, 43 also moves within the slits 43, 43.

[0028] When the operator slides the operating unit 42 to the left from the state shown in Figure 3, the shaft 44 is guided from the right side to the left side of the first portion 43a of the slit 43.

[0029] The support 30 is guided along the second portion 43b of the slit 43 by the rotation of the link mechanism 45 relative to the axis 44. The second portion 43b of the slit 43, that is, at least a part of the slit 43, extends in a direction that intersects with the path of the adhesive body 1 from the winding body 11 to the pressing portion 12 when the cutting portion 20 is stored. Therefore, the support 30 presses the adhesive body 1 while moving along the second portion 43b, and as shown in Figure 6, the adhesive body 1 can be sandwiched between the support 30 and the inner wall 15 of the housing 10, thereby fixing the adhesive body 1.

[0030] Figure 9 is a schematic diagram showing the state at the start of the operation in which an adhesive body 1 is attached to an object W using an adhesive body attachment device 100. The operator holds down the end of the adhesive body 1 with, for example, a finger F, and while dispensing the adhesive body 1 from the adhesive body attachment device 100, presses the adhesive body 1 against the object W with the pressing unit 12, thereby attaching the adhesive body 1 to the object W.

[0031] Figure 10 is a schematic diagram showing the state in which the cutting section 20 is protruding during the process of attaching the adhesive 1 to the object W using the adhesive attachment device 100. After Figure 9, once the attachment of the adhesive 1 to the required area is complete, the operator operates the operating section 42 in the direction indicated by the arrow to protrude the guide section and the cutting section 20 (blade 21) from the housing 10.

[0032] Figure 11 is a schematic diagram showing the state in which the adhesive 1 is cut using the cutting section 20 during the process of attaching the adhesive 1 to an object W using the adhesive application device 100. After Figure 10, the operator tilts the adhesive application device 100 toward the side of the unfurled adhesive 1, thereby guiding the adhesive 1 into the opening 14 of the guide section 13 (see Figures 8 and 9). The adhesive 1 enters the opening 14 and reaches the blade 21 (cutting section 20) protruding into the interior of the opening 14, thereby cutting the adhesive 1.

[0033] In this embodiment, as shown in Figure 6, the cutting section 20 is configured to cut the adhesive body 1 while the support 30 is fixing the adhesive body 1 in place. As a result, the support 30 fixes the adhesive body 1 between the winding body 11 and the pressing section 12, and the cutting section 20 cuts the adhesive body 1 attached to the object, thereby applying tension to the adhesive body 1 during cutting, and thus improving the cutting performance.

[0034] Here, the support 30 is provided between the winding body 11 and the pressing part 12. This allows the support 30 to be unwound from the winding body 11 and apply tension to the adhesive body 1 pressed against the object.

[0035] Furthermore, as shown in Figure 6, the support 30 can hold the adhesive body 1 in place by sandwiching it between itself and the inner wall 15. This allows the adhesive body 1 to be fixed inside the housing 10, thus enabling the adhesive body application device 100 to be miniaturized.

[0036] This embodiment includes a guide section 13 that guides the adhesive body 1 from the pressing section 12 to the cutting section 20. As shown in Figure 11, the adhesive body 1 is guided to the cutting section 20 by the guide section 13 and then cut, so it can be cut reliably at the target position, thereby improving cutting accuracy.

[0037] In particular, the guide section 13 has an opening 14, and the cutting section 20 has a blade 21 that protrudes into the opening 14, as shown in Figure 7. As a result, the adhesive body 1 is guided into the opening 14 of the guide section 13, so that the adhesive body 1 can be reliably guided to the position of the blade 21, thereby improving cutting accuracy.

[0038] The cutting section 20 is configured to slide relative to the housing 10 between a cutting position that protrudes beyond the tip section 16 and a storage position that does not protrude beyond the tip section 16. This allows the cutting section 20 to protrude only when cutting the adhesive material 1, and to be retracted when applying, enabling smooth extension without interference from the cutting section 20.

[0039] The mechanism 40 can move the support 30 to a position where the adhesive body 1 is fixed when the cutting part 20 is at the cutting position, and to a position separated from the adhesive body 1 when the cutting part 20 is at the storage position. Thereby, it is possible to achieve both improved cutting performance and smooth unwinding.

[0040] The mechanism 40 includes a slide member 41, a pair of slits 43, 43, a shaft 44, and a link mechanism 45. Thereby, by a simple operation, it is possible to move the cutting part 20 to the cutting position and fix the adhesive body 1 by the support 30.

[0041] FIG. 12 is a conceptual diagram for explaining the angle θ formed between the tip surface 21a of the blade 21 of the cutting part 20 and the adhesive body 1, particularly the central axis of the adhesive body 1. Hereinafter, the angle formed between the tip surface 21a of the blade 21 and the central axis of the adhesive body 1 is also simply referred to as the angle of the tip surface 21a. FIG. 13 is a conceptual diagram for explaining the relationship between the angle of the tip surface 21a of the blade 21 and the contact surface S with the adhesive body 1, and (a) shows an example with a small angle, and (b) shows an example with a large angle. As shown in FIG. 12, the larger the angle θ of the tip surface 21a, the more stress concentrates on the tip P, and the easier it is for the blade 21 to penetrate into the adhesive body 1. On the other hand, as the angle θ of the tip surface 21a increases, as shown in FIG. 13, the contact surface S where the tip surface 21a contacts the adhesive body 1 becomes smaller.

[0042] That is, if the angle θ of the tip surface 21a of the blade 21 is too small or too large, the cutting performance may decrease. For example, by setting the angle formed between the tip surface 21a of the blade 21 and the central axis of the adhesive body 1 to be 1° or more and 60° or less, stress concentrates on the tip P, and the area of the tip surface 21a that contacts the adhesive body 1 can be ensured, so that good cutting performance can be maintained. In FIGS. 12 and 13, an example of a single-edge cutting part 20 is shown, but the cutting part 20 is not limited to a single-edge such as a cutter. As long as it can cut the adhesive body 1, it may be a double-edge such as scissors or nippers, a heat cutter, or an ultrasonic cutter.

[0043] Figure 14 is an enlarged view of the guide portion 13 and the blade 21. The guide portion 13 plays a role in regulating the position of the adhesive body 1 in the left-right direction. More specifically, because the guide portion 13 has an opening 14, the left and right ends of the opening 14 in the guide portion 13 play a role in regulating the position of the adhesive body 1. Therefore, the left-right dimension of the opening 14, i.e., the width X, is set to, for example, 0.1 mm or more and 5 mm or less. This prevents the adhesive body 1 from wobbling in the width direction and also prevents fingers from entering the opening 14.

[0044] Figure 15 is a conceptual diagram illustrating other examples of the opening 14 and the guide portion 13. Figure 15(a) shows an example where the opening 14 is a through hole provided in the guide portion 13. Figure 15(b) shows an example where the opening 14 is provided on the lower end surface of the guide portion 13 and is a groove capable of continuously guiding the adhesive body 1. Figure 15(c) shows an example where there is no guide portion 13 and the cutting portion 20 (blade 21) is provided adjacent to the pressing portion 12. In the embodiments described above, the opening 14 has a slit shape with one end open, as shown in Figures 7 and 8, but it may also be a through hole as shown in Figure 15(a), and the shape of the through hole is not limited and may be rectangular, circular, etc. Note that the cutting portion 20 (blade 21) is not shown in Figure 15(a), but as shown in Figure 14, it may have a blade 21 protruding into the interior of the opening 14. Furthermore, as shown in Figure 15(b), if a groove-shaped opening 14 is provided at the lower end of the guide portion 13, the blade 21 may be positioned along the side end surface 13a of the guide portion 13, that is, the side end surface opposite to the side adjacent to the pressing portion 12. Also, in the above-described embodiment, the cutting portion 20 (blade 21) was provided on the guide portion 13, but a separate cutting portion (blade 21) may be provided near the pressing portion 12, and the nozzle may perform the function of a guide portion in addition to the function of the pressing portion 12.

[0045] Furthermore, the surface free energy γ1 of the support 30 is γ1 < 40 [mJ / m ２ ] This may also be the case. If the surface free energy γ1 of the support 30 that fixes the adhesive 1 is smaller than a predetermined value, it will suppress the adhesive 1 from adhering to the support 30 and allow the adhesive 1 to be fed out smoothly.

[0046] Furthermore, the surface free energy γ2 of the pressing portion 12 is γ2 < 40 [mJ / m２ It may also be [the case]. When the surface free energy γ2 of the pressing portion 12 that presses the adhesive body 1 against the object is smaller than a predetermined value, adhesion of the adhesive body 1 to the pressing portion 12 is suppressed, and the adhesive body 1 can be smoothly fed out.

[0047] In the above embodiment, an example of the adhesive body pasting device 100 that an operator holds and operates has been shown. However, for example, by attaching the device of the embodiment to a multi-joint robot arm having six-axis degrees of freedom or a stationary adhesive body pasting device, etc., the adhesive body 1 can be accurately pasted by an automatic machine.

[0048] Note that the configuration, material, etc. of the adhesive body 1 are not particularly limited. The adhesive body 1 may be a filamentous adhesive body as in the embodiment. The filamentous adhesive body is composed of, for example, a linear core material and an adhesive layer that covers the surface in the longitudinal direction of the core material, and can be smoothly pasted even on a narrow portion of an object.

[0049] Examples of specific applications of the filamentous adhesive body include, for example, cables such as electric wires and optical fibers, LED fiber lights, optical fiber sensors such as FBG (Fiber Bragg Gratings), various wire materials (linear members) such as threads, strings, wires, etc., and narrow members, for the purpose of fixing in a desired form. Also, the filamentous adhesive body can be suitably used for the temporary fixing (temporary fastening) of articles for temporarily fixing one article to the surface of another article.

[0050] If it is a filamentous adhesive body, even if the shapes of both articles are complex shapes such as curves, curved surfaces, and unevenness, it can be well pasted while suppressing protrusion, wrinkles, and overlap, and moreover, it can be pasted in one step, and the workability is good.

[0051] Also, for example, even for members that are easily deformed, such as fabrics, cloths, leathers, etc. that constitute fiber products or leather products, by performing temporary fixing with a filamentous adhesive body, deformation of the member due to tension can be suppressed or prevented, and the design property after fixing (permanent fixing) becomes good.

[0052] Furthermore, if a thread-like adhesive is used, it is easy to remove the thread-like adhesive from between the two fixed articles after they have been permanently fixed together, as needed. This prevents the adhesive from overflowing and effectively prevents deterioration of the design due to discoloration of the remaining adhesive over time.

[0053] Furthermore, if the adhesive is in the form of a thread, its functionality can be enhanced by twisting it together with threads made of other materials to form a combined thread, or by weaving it with threads or fabrics (including nonwoven fabrics and sheets) made of other materials.

[0054] Furthermore, the filamentous adhesive can be used as a dam material to prevent the adhesive or sealant from overflowing when applying it to the object to be bonded (the substrate). The dam material can be used, for example, to prevent the overflowing of sealing resin used in bonding optical panels. When using the filamentous adhesive as a dam material, the filamentous adhesive may be peeled off after the adhesive or sealant has hardened, or it may be left in place.

[0055] Herein, the features of the adhesive application apparatus and adhesive application method according to the embodiments of the present invention described above are briefly summarized and listed below in [1] to

[13] .

[0056] [1] An adhesive body application device (100) for unwinding an adhesive body (1) from a winding body (11) and applying it to an object, comprising: a holding part (17) for holding the winding body; a pressing part (12) for pressing the adhesive body onto the object; a cutting part (20) for cutting the adhesive body; and a support (30) for fixing the adhesive body, wherein the cutting part is configured to cut the adhesive body while the support is fixing the adhesive body.

[0057] With the above configuration, the support holds the adhesive material in place between the winding body and the pressing part, and the cutting part cuts the adhesive material attached to the object, thereby applying tension to the adhesive material during cutting, and thus improving the cutting performance.

[0058] [2] The support is provided between the winding body and the pressing portion, the adhesive body attachment device according to [1].

[0059] According to the above configuration, the support can be unwound from the winding body and apply tension to the adhesive body pressed against the object.

[0060] [3] The adhesive application device according to [1], further comprising a guide portion (13) for guiding the adhesive from the pressing portion to the cutting portion.

[0061] With the above configuration, the adhesive is guided to the cutting section by the guide section, and then cut, so it can be cut reliably at the target position, thus improving cutting accuracy.

[0062] [4] The adhesive application device according to [3], wherein the guide portion has an opening (14), and the cutting portion has a blade (21) protruding into the interior of the opening.

[0063] With the above configuration, the adhesive material is guided into the opening of the guide section, which ensures that the adhesive material is reliably guided to the blade position, thereby improving cutting accuracy.

[0064] [5] The adhesive application device according to [1], wherein the cutting portion has a blade whose angle between the tip surface (21a) and the central axis of the adhesive is 1° or more and 60° or less.

[0065] According to the above configuration, stress is concentrated at the tip, and the surface area of ​​the tip that contacts the adhesive can be secured, thus maintaining good cutting performance.

[0066] [6] The adhesive application device according to [3] or [4], wherein the guide portion restricts the position of the adhesive in the left-right direction, and the guide portion has an opening with a left-right dimension of 0.1 mm or more and 5 mm or less.

[0067] According to the above configuration, it is possible to prevent the adhesive body from wobbling in the width direction and to prevent fingers from entering the opening.

[0068] [7] The adhesive application device according to [1], comprising a housing (10) in which the support body is provided inside, and an inner wall (15) that defines a space through which the adhesive body can be inserted into the housing, wherein the support body fixes the adhesive body by sandwiching it between itself and the inner wall.

[0069] With the above configuration, the adhesive can be fixed inside the housing, making it possible to miniaturize the adhesive application device.

[0070] [8] The adhesive application device according to [7], wherein the housing is provided with the pressing portion at its tip (16), and the cutting portion is configured to slide relative to the housing between a cutting position that protrudes beyond the tip and a storage position that does not protrude beyond the tip.

[0071] With the above configuration, the cutting portion is made to protrude only when the adhesive is being cut, so that it is retracted when the adhesive is being applied, allowing for smooth extension without interference with the cutting portion.

[0072] [9] The adhesive application device according to [8], further comprising a mechanism (40) for moving the support so that when the cutting portion is in the cutting position, the support is in a position separated from the adhesive when the cutting portion is in the storage position.

[0073] The above configuration makes it possible to achieve both improved cutting performance and smooth feeding.

[0074]

[10] The adhesive application device according to [9], the mechanism comprising: a slide member (41) that is slidable relative to the housing and has the cutting portion at one end; a pair of slits (43, 43) that at least a portion of which extend in a direction intersecting the path of the adhesive from the winding body to the pressing portion; a shaft (44) attached to the slide member so as to be spanned between the pair of slits; and a link mechanism (45) that connects the shaft and the support when the support is spanned between the pair of slits.

[0075] With the above configuration, the cutting section can be moved to the cutting position and the adhesive body can be fixed by the support with simple operations.

[0076]

[11] The surface free energy γ1 of the support is γ1 < 40 [mJ / m ２ The adhesive attachment device described in [1].

[0077] With the above configuration, the surface free energy of the support that fixes the adhesive is smaller than a predetermined value, which suppresses the adhesive from adhering to the support and allows the adhesive to be fed out smoothly.

[0078]

[12] The surface free energy γ2 of the pressing portion is γ2 < 40 [mJ / m ２ The adhesive attachment device described in [1].

[0079] With the above configuration, the surface free energy of the pressing part that presses the adhesive material against the object is smaller than a predetermined value, thus suppressing the adhesive material from adhering to the pressing part and allowing the adhesive material to be dispensed smoothly.

[0080]

[13] A method for attaching an adhesive body, comprising unwinding the adhesive body (1) from a wound body (11) of the adhesive body and attaching it to an object, wherein the adhesive body is pressed and attached to the object, the adhesive body attached to the object is fixed, and the fixed adhesive body is cut.

[0081] According to the above configuration, the adhesive material attached to the object can be fixed in place and cut while tension is applied to the adhesive material, thereby improving the cutting performance.

[0082] Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to these examples. It is clear to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention. Furthermore, the components of the above embodiments may be combined in any way without departing from the spirit of the invention.

[0083] Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to these examples. It is clear to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention. Furthermore, the components of the above embodiments may be combined in any way without departing from the spirit of the invention.

[0084] This application is based on a Japanese patent application (JP 2024-201048) filed on November 18, 2024, the contents of which are incorporated by reference within this application.

[0085] According to the present invention, the cutting ability of adhesives can be improved. The present invention can be used as an adhesive application device held and operated by an operator, or as an adhesive application device such as a multi-joint robot arm or a stationary type, or as an adhesive application method using such adhesive application devices.

[0086] 1 Adhesive body 10 Housing 11 Winding body 12 Pressing part 13 Guide part 14 Opening 15 Inner wall 16 Tip part 17 Holding part 20 Cutting part 21 Blade 21a Tip surface 30 Support 40 Mechanism 41 Sliding member 42 Operating part 43 Slit 43a First part 43b Second part 44 Shaft 45 Link mechanism 100 Adhesive body application device F Finger P Tip S Contact surface W Object

Claims

1. An adhesive application device for unwinding an adhesive from a winding body and applying it to an object, comprising: a holding part for holding the winding body; a pressing part for pressing the adhesive onto the object; a cutting part for cutting the adhesive; and a support for fixing the adhesive, wherein the cutting part is configured to cut the adhesive while the support is fixing the adhesive.

2. The adhesive body application device according to claim 1, wherein the support is provided between the wound body and the cut portion.

3. The adhesive application device according to claim 1, further comprising a guide portion for guiding the adhesive to the cutting portion.

4. The adhesive application device according to claim 3, wherein the guide portion has an opening, and the cutting portion has a blade protruding into the interior of the opening.

5. The adhesive application device according to claim 1, wherein the cutting portion has a blade whose angle with respect to the tip surface and the central axis of the adhesive is 1° or more and 60° or less.

6. The adhesive application device according to claim 3, wherein the guide portion restricts the position of the adhesive in the left-right direction, and the guide portion has an opening with a left-right dimension of 0.1 mm or more and 5 mm or less.

7. The adhesive application device according to claim 1, comprising a housing in which the support body is provided internally, and an inner wall defining a space through which the adhesive body can be inserted into the housing, wherein the support body fixes the adhesive body by sandwiching it between itself and the inner wall.

8. The adhesive application device according to claim 7, wherein the housing is provided with the pressing portion at its tip, and the cutting portion is configured to slide relative to the housing between a cutting position that protrudes beyond the tip and a storage position that does not protrude beyond the tip.

9. The adhesive body application device according to claim 8, further comprising a mechanism for fixing the adhesive body when the cutting portion is in the cutting position, and for moving the cutting portion away from the adhesive body when it is in the storage position.

10. The adhesive application device according to claim 9, the mechanism comprising: a slide member slidable relative to the housing and having the cutting portion at one end; a pair of slits, at least a portion of which extend in a direction intersecting the path of the adhesive from the winding body to the pressing portion; a shaft attached to the slide member so as to span between the pair of slits; and a link mechanism connecting the shaft and the support when the support is spanned between the pair of slits.

11. The surface free energy γ1 of the support is γ1 < 40 [mJ / m ２ The adhesive body application device according to claim 1.

12. The surface free energy γ2 of the pressing portion is γ2 < 40 [mJ / m ２ The adhesive body application device according to claim 1.

13. A method for applying an adhesive material, comprising unwinding an adhesive material from a wound body and attaching it to an object, wherein the adhesive material is pressed and attached to the object, the adhesive material attached to the object is fixed, and the fixed adhesive material is cut.

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