Tape dispenser

Abstract

To provide a tape dispenser which has excellent operability when performing drawing back / delivering of a gummed tape.SOLUTION: A tape dispenser 1 includes: a tape holder 10 for rotatably holding a tape wound up in a roll-like manner; a water supply part 20 for supplying water content to an adhesive layer of the tape; and a tape movement part 30 for moving the tape held by the tape holder 10 in a delivery direction or the drawing back direction, being interlocked with the operation of a user. The tape movement part 30 includes an operation member 31 which moves the tape in the delivering direction when operated in a first direction by the user, and moves the tape in the drawing back direction when operated in a second direction on the opposite side from the first direction by the user.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a tape dispenser. [Background technology]

[0002] Conventionally, packing tape has been used, in which a water-soluble adhesive layer (glue) is formed on one side of kraft paper. This packing tape develops adhesive strength when the adhesive layer is wetted with water. Conventionally, tape dispensers have been proposed that include a container that can store a roll of packing tape and a water supply unit (a brush or sponge soaked in water) located just before the packing tape dispenser (see, for example, Patent Documents 1 to 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 6-156860 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-122506 [Patent Document 3] Patent Publication No. 2021-147218 Summary of the Invention [Problem to be solved by the invention]

[0004] Packing tape dispensed from a tape dispenser will not lose its adhesive strength as long as the adhesive layer is wet with water. However, the adhesive strength of packing tape is lost when the adhesive layer dries. The adhesive strength of packing tape can be restored by wetting the dried adhesive layer again with water. In a tape dispenser, when the adhesive layer of the packing tape dries, the dried portion must be pulled back to the water supply, wetted with water, and then dispensed again to the dispenser. In conventional tape dispensers, when retracting the packing tape, the user can pull the dried portion of the packing tape back to the water supply by rotating the tape body (roll-shaped packing tape) in the rewinding direction. On the other hand, when dispensing the packing tape, even if the user rotates the tape body in the dispensing direction opposite to the rewinding direction, the leading end of the packing tape cannot be dispensed from the dispenser. This is because packing tape does not have enough rigidity to move through the inside of the tape dispenser and bends internally as it is dispensed. Therefore, the user must pull out the tip of the packing tape with his or her fingers and guide it to the outlet.

[0005] Thus, when retracting or feeding gummed tape in a conventional tape dispenser, the user must turn the tape body in the retracting direction or guide the gummed tape to the dispenser opening. Therefore, there is a demand for tape dispensers that provide improved operability when retracting or feeding gummed tape.

[0006] An object of the present invention is to provide a tape dispenser that is easy to operate when retracting or feeding gummed tape. [Means for solving the problem]

[0007] The tape dispenser of the present invention is a tape dispenser used to attach tape having a water-soluble adhesive layer formed thereon to an object, and comprises: a tape holder that holds the tape wound into a roll so that it can rotate freely; a water supply unit that supplies moisture to the adhesive layer of the tape; and a tape moving unit that moves the tape held in the tape holder in a feed direction or a retraction direction in response to operation by a user, and the tape moving unit comprises an operating member that moves the tape in the feed direction when operated in a first direction by the user, and moves the tape in the retraction direction when operated in a second direction opposite to the first direction by the user. [Effects of the Invention]

[0008] The tape dispenser according to the present invention is easy to operate when retracting or feeding the gummed tape. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective view of the tape dispenser 1 as seen obliquely from behind. [Figure 2] FIG. 1 is a perspective view of a tape dispenser 1 as viewed obliquely from the front. [Figure 3] FIG. 2 is a side view of the tape body 50. [Figure 4] FIG. 2 is a side view showing a state in which a tape body 50 is attached to the tape dispenser 1. [Figure 5] FIG. 2 is an exploded perspective view of the tape dispenser 1. [Figure 6] FIG. 2 is a front view of the tape dispenser 1 as viewed from the front direction Z1. [Figure 7] 7 is a cross-sectional view corresponding to the s1-s1 cross section of FIG. 6. [Figure 8] FIG. 2 is a perspective view of the internal structure of the tape moving section 30 as seen obliquely from behind. [Figure 9A] 3 is a perspective view of an upper roller holding portion 32, a lower roller holding portion 33, and a roller driving portion 34. FIG. [Figure 9B]3 is a perspective view of an upper roller holding portion 32, a lower roller holding portion 33, and a roller driving portion 34. FIG. [Figure 10A] 9B is a view of the internal structure shown in FIG. 9A as seen from the front side Z1. [Figure 10B] 9B is a view of the internal structure shown in FIG. 9A as seen from the rear side Z2. [Figure 11] 10(A) to 10(C) are diagrams illustrating the operation of the tape moving section 30. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of a tape dispenser according to the present invention will be described with reference to the drawings. The tape dispenser 1 of this embodiment is a handy tool used to apply packing tape to, for example, a sealed portion (such as a lid or a joint) of a package.

[0011] The drawings attached to this specification are all schematic diagrams, and the shape, scale, aspect ratio, etc. of each part have been modified or exaggerated from the actual product in consideration of ease of understanding, etc. Furthermore, hatching indicating cross sections of components has been omitted as appropriate in the drawings.

[0012] In this specification, the left-right direction when viewing the tape dispenser 1 from the orientation shown in Fig. 1 is referred to as the X direction, the up-down direction as the Y direction, and the front-rear direction as the Z direction. In the left-right direction X, the left direction in the drawing is referred to as X1, and the right direction as X2. In the up-down direction Y, the up direction in the drawing is referred to as Y1, and the down direction as Y2. In the front-rear direction Z, the front direction which is the direction in which the gum tape is fed out is referred to as Z1, and the rear direction which is the direction in which the gum tape is pulled back is referred to as Z2. In this specification, "direction" may also be referred to as "side" as appropriate.

[0013] FIG. 1 is a perspective view of the tape dispenser 1 as viewed obliquely from the rear. FIG. 2 is a perspective view of the tape dispenser 1 as viewed obliquely from the front. FIG. 3 is a side view of the tape body 50. FIG. 4 is a side view showing the tape dispenser 1 with the tape body 50 attached thereto. FIG. 5 is an exploded perspective view of the tape dispenser 1. FIG. 6 is a front view of the tape dispenser 1 as viewed from the front direction Z1. FIG. 7 is a cross-sectional view corresponding to the s1-s1 cross section of FIG. 6.

[0014] In the tape dispenser 1 of this embodiment, the gummed tape is wound in a roll and loaded into the tape dispenser 1. In the following description, the entire gummed tape wound in a roll is referred to as the "tape body 50," and the gummed tape wound in a roll itself, or the gummed tape dispensed from the tape body 50, is referred to as the "gummed tape (reference number omitted)" or "gummed tape 51."

[0015] 1 and 2, the tape dispenser 1 includes a tape holder 10, a water supply unit 20, a tape movement unit 30, etc. In the tape holder 10 of this embodiment, the tape holder 10, the water supply unit 20, and the tape movement unit 30, which will be described later, are supported or attached to one another in a detachable manner, but may also be configured to include a housing for supporting or attaching each of these units.

[0016] As shown in FIG. 3, tape body 50 is formed by wrapping gummed tape (tape) 51 in a roll around a paper tube 52 that serves as a core material. As shown in the partially enlarged view, gummed tape 51 includes a base material 511 and an adhesive layer 512. Base material 511 is made of a paper material such as kraft paper. Adhesive layer 512 is made of a water-soluble adhesive such as water-based glue. In this embodiment, the base material 511 side of gummed tape 51 will be described as a first surface 51a, and the adhesive layer 512 side will be described as a second surface 51b. The entire gummed tape wound into a roll will be referred to as "tape body 50."

[0017] (Tape holder 10) The tape holder 10 is a part that rotatably supports a roll-shaped tape body 50 (see Figure 3). As shown in Figures 1 and 2, the tape holder 10 includes a tape support part 11, a side plate 12, a holder cover 13, etc.

[0018] The tape support part 11 is the part onto which the tape body 50 is attached, and is configured to have a substantially cylindrical shape. As shown in FIG. 1, the tape support part 11 has claw parts 14 on its outer periphery. The claw parts 14 are parts that prevent the tape body 50 attached to the tape support part 11 from falling off. The claw parts 14 are configured to be able to swing freely in the radial direction (corresponding to the Y direction in FIG. 1), and protrude radially outward when the tape body 50 is not attached. The side plate 12 is a member that supports the tape support part 11. As shown in FIG. 2, the side plate 12 is formed integrally with a right side cover 26 (described later) of the water supply part 20.

[0019] The holder cover 13 is a member that covers the upper side (Y1) of the tape main body 50 attached to the tape support part 11. The front side Z1 of the holder cover 13 is rotatably supported on the rear side Z2 of the tape moving part 30. By covering the upper side of the tape main body 50 with the holder cover 13, it is possible to prevent the user from accidentally rotating the tape main body 50.

[0020] When attaching the tape body 50 to the tape support portion 11, the user inserts the tape body 50 by pushing it from the front side (X1 side) of the tape support portion 11 toward the rear side (X2 side). When the tape body 50 is inserted by pushing it toward the rear side of the tape support portion 11, the claw portions 14 are pressed by the paper tube 52 of the tape body 50 (see FIG. 3 ) and retract radially inward. This allows the user to insert the tape body 50 all the way into the tape support portion 11. When the tape body 50 is inserted all the way into the tape support portion 11, the claw portions 14 are released from the pressure of the paper tube 52 of the tape body 50, and return to their radially outward positions, as shown in FIG. 4 . When the claw portions 14 return to their radially outward positions, the protrusions 14 a at the tips of the claw portions 14 engage with the paper tube 52 (side edges) of the tape body 50, thereby preventing the tape body 50 from falling off the tape support portion 11.

[0021] (Water supply section 20) The water supply section 20 is a section that supplies water to the adhesive layer 512 (see Figure 3) of the gummed tape 51 fed out from the tape body 50. As shown in Figure 5, the water supply section 20 includes a tank 21, a water supply body 22, a front cover 23, a rear cover 24, a left side cover 25, a right side cover 26, etc. The tank 21 includes a tank body 28, a tank lid 29, etc. The tank body 28 is a container that stores water to be supplied to the water supply body 22. The tank lid 29 is a member that covers the upper side Y1 of the tank body 28. The tank lid 29 is detachably attached to the tank body 28. Furthermore, the front side Z1 of the tank lid 29 is rotatably supported by the front cover 23.

[0022] A water supply body 22 is detachably attached to the tank 21. The water supply body 22 is a member that comes into contact with the adhesive layer 512 (see FIG. 3) of the duct tape 51. The duct tape 51 becomes wet with water when the water supply body 22 comes into contact with the adhesive layer 512. The water supply body 22 is made of a water-absorbent porous material such as a sponge. The water supply body 22 is formed in a belt shape and is attached to the tank body 28 in an inverted J shape as shown in FIG. 7.

[0023] As shown in FIG. 7, water supply body 22 includes water intake section 22a and application section 22b. Water intake section 22a is a section that sucks up water from tank body 28. Water intake section 22a is immersed in water (not shown) stored in tank body 28. Application section 22b is a section that applies water to the adhesive layer of packing tape 51. As shown in FIGS. 5 and 6, application section 22b is attached to tank lid 29 so as to protrude in an inverted U shape from tank lid 29 toward tape transfer section 30 (Y1 side). In water supply body 22, water sucked up by water intake section 22a moves to application section 22b by capillary action. Therefore, the surface of application section 22b is maintained in a moist state while water is stored in tank body 28 (tank 21).

[0024] As shown in Fig. 2, the front cover 23 is a member that covers the front side Z1 of the tank 21. The tank 21 is detachably supported by the front cover 23. An upper side Y1 of the front cover 23 is detachably supported by a tape moving unit 30 (described later). As shown in Fig. 6, a water level window 231 is provided on the front side Z1 of the front cover 23 to check the water level of the water stored in the tank body 28.

[0025] As shown in FIG. 5, the rear cover 24 is a member that covers the rear side Z2 of the tank 21. The upper side Y1 of the rear cover 24 is supported by the right side cover 26 together with the side plate 12 (tape holder 10). The rear cover 24 is provided with a locking portion 241 for engaging and disengaging the rear cover 24 with the tank main body 28. The left side cover 25 is a member that covers the left side X1 of the tank 21. The right side cover 26 (see FIG. 2) is a member that covers the right side X2 of the tank 21. As shown in FIGS. 1 and 2, the outer periphery of the tank 21 is covered by the front cover 23, the rear cover 24, the left side cover 25, and the right side cover 26.

[0026] The user can remove tank 21 from tape dispenser 1 by operating locking portion 241 (see FIG. 5 ) of rear cover 24 to release the engagement between rear cover 24 and tank body 28 (tank 21). This allows the user to open tank lid 29 and fill tank body 28 with water. After attaching tank 21 to tape dispenser 1, the user can attach tank 21 to tape dispenser 1 by operating locking portion 241 of rear cover 24 to engage rear cover 24 with tank body 28.

[0027] (Tape moving unit 30) The tape moving unit 30 is a part that moves the gummed tape 51 (tape body 50) held in the tape holder 10 in the feeding direction Z1 or the retracting direction Z2 in response to an operation by the user. As shown in Figures 1, 2 and 5, the tape moving unit 30 includes a manual roller (operating member) 31, an upper roller holding unit 32, a lower roller holding unit 33, a roller drive unit 34, an upper cover 35, a left cover 36, a right cover 37, etc.

[0028] The manual roller 31 is a member that is operated by the user. In this embodiment, the manual roller 31 is configured as a dial with knurling formed on its outer surface. When the user turns the manual roller 31 with their fingers (feed-out operation / pull-back operation), the gears and rollers (described later) of the upper roller holding unit 32, the lower roller holding unit 33, and the roller drive unit 34 work together to feed out or pull back the gummed tape clamped by the tape moving unit 30.

[0029] In this embodiment, when viewing the tape moving unit 30 from the left direction X1, the operation of turning the manual roller 31 counterclockwise (first direction) will be described as a "feed-out operation," and the operation of turning it clockwise (second direction) will be described as a "pull-back operation." The configurations and operations of the manual roller 31, the upper roller holding unit 32, the lower roller holding unit 33, and the roller driving unit 34 will be described in detail later.

[0030] As shown in FIG. 2, the upper cover 35 is a member that covers the upper side Y1 of the upper roller holding portion 32. A cutter blade 38 is provided on the front side Z1 of the upper cover 35 to cut the gum tape 51 dispensed from the tape body 50. A user can cut the gum tape 51 (not shown) protruding from between the first front roller 110 and the second front roller 210 with the cutter blade 38 by tilting the front side of the tape dispenser 1 and twisting it in a predetermined direction. A roller hole 351 is provided in approximately the center of the upper cover 35 to expose the manual roller 31 (described below). Also, as shown in FIG. 2, an outlet 39 through which the gum tape is inserted and removed is provided on the front side Z1 of the upper roller holding portion 32 and the lower roller holding portion 33.

[0031] As shown in FIG. 1, the left cover 36 is a member that covers the left side X1 of the upper roller holding portion 32. The left cover 36 is attached to the left side X1 of the upper cover 35. The left cover 36 is provided with a locking portion 352 that engages and disengages the upper roller holding portion 32 and the lower roller holding portion 33. As shown in FIG. 2, the right cover 37 is a member that covers the right side X2 of the upper roller holding portion 32. The right cover 37 is attached to the right side X2 of the upper cover 35. As shown in FIG. 1, the outer periphery of the upper roller holding portion 32 is covered by the upper cover 35, the left cover 36, and the right cover 37.

[0032] As shown in FIG. 5 , the front side Z1 of the upper roller holding portion 32 is rotatably attached to the front side Z1 of the lower roller holding portion 33 via a shaft 101. The user can open the gap between the upper roller holding portion 32 and the lower roller holding portion 33 by operating the locking portion 352 to release the engagement between the upper roller holding portion 32 and the lower roller holding portion 33, as shown in FIG. 5 . With the gap between the upper roller holding portion 32 and the lower roller holding portion 33 open, the user pulls out the gummed tape 51 from the tape body 50 (see FIG. 4 ) and places the leading end on the lower roller holding portion 33, overlapping the upper roller holding portion 32 and the lower roller holding portion 33. Then, the user can clamp the gummed tape 51 between the upper roller holding portion 32 and the lower roller holding portion 33 by operating the locking portion 352 to engage the upper roller holding portion 32 and the lower roller holding portion 33. This allows the user to operate the manual roller 31 to feed or pull back the gum tape 51 from the tape dispenser 1. The operation of the tape moving unit 30 to feed or pull back the gum tape 51 from the tape dispenser 1 by operating the manual roller 31 will be described later.

[0033] FIG. 8 is a perspective view of the internal structure of the tape moving unit 30, viewed obliquely from the rear. FIGS. 9A and 9B are perspective views of the upper roller holding unit 32, the lower roller holding unit 33, and the roller driving unit 34. Specifically, FIG. 9A is a perspective view of the rollers of the upper roller holding unit 32, the rollers of the lower roller holding unit 33, and the roller driving unit 34, viewed from the left direction X1 of the front side Z1. FIG. 9B is a perspective view of the rollers of the upper roller holding unit 32, the rollers of the lower roller holding unit 33, and the roller driving unit 34, viewed from the right direction X2 of the front side Z1. FIG. 10A is a view of the internal structure shown in FIG. 9A, viewed from the front side Z1. FIG. 10B is a view of the internal structure shown in FIG. 9A, viewed from the rear side Z2. Note that FIGS. 8, 9A, 9B, 10A, and 10B show the positional relationships of the various components when the tape moving unit 30 is closed, as shown in FIG. 1 and other figures.

[0034] As shown in Fig. 8, the upper roller holding portion (first roller holding portion) 32 includes an upper support frame 100, a first front roller 110, and a first rear roller 120. The upper support frame 100 is a frame body that supports the various rollers that make up the upper roller holding portion 32. The first front roller 110 and the first rear roller 120 function as first rollers that come into contact with the first surface 51a (see Fig. 3) of the gummed tape 51 when the tape dispenser 1 is in use.

[0035] As shown in Fig. 9A, the first front roller 110 is a roller arranged on the front side Z1 of the upper roller holding part 32. As shown in Fig. 10A, an uneven portion 111 is formed on the outer peripheral surface of the first front roller 110 along the longitudinal direction X. A shaft 112 is attached to the center of rotation of the first front roller 110. As shown in Fig. 8, the first front roller 110 is rotatably supported by the upper support frame 100 via the shaft 112.

[0036] As shown in Fig. 9B, the first rear roller 120 is a roller arranged on the rear side Z2 of the upper roller holding part 32. As shown in Fig. 10B, an uneven portion 121 is provided on the outer peripheral surface of the first rear roller 120 along the longitudinal direction X. A shaft 122 is attached to the center of rotation of the first rear roller 120. As shown in Fig. 8, the first rear roller 120 is supported by the upper support frame 100 via the shaft 122.

[0037] As shown in Fig. 8, the manual roller 31 is disposed between the first front roller 110 and the first rear roller 120 in the front-rear direction Z of the upper roller holding unit 32. Also, as shown in Fig. 7, the manual roller 31 is disposed between the water supply body 22 of the water supply unit 20 and the tape holder 10 in the front-rear direction Z of the tape dispenser 1. A shaft 310 is attached to the center of rotation of the manual roller 31. The manual roller 31 is rotatably supported by the upper support frame 100 via the shaft 310.

[0038] 8, 9A, and 9B, lower roller holding portion (second roller holding portion) 33 includes a lower support frame 200, a second front roller 210, a second rear roller 220, etc. Lower support frame 200 is a frame body that supports the various rollers that make up lower roller holding portion 33. Second front roller 210 and second rear roller 220 function as second rollers that come into contact with second surface 51b (see FIG. 3) of gum tape 51 when tape dispenser 1 is in use.

[0039] As shown in FIG. 5, the lower support frame 200 is provided with a plurality of first ribs (restraining members) 230. The first ribs 230 are members that make it difficult for the gummed tape 51 (adhesive layer 512) to stick to the first rear roller 120 and / or the second rear roller 220 when the gummed tape 51 wet with water is fed out or pulled back. As shown in FIG. 5, the first ribs 230 extend from the front side Z1 of the second rear roller 220 to the rear side Z2 of the lower support frame 200. As shown in FIG. 10B, the first ribs 230 are each disposed between adjacent convex rollers 221 of the second rear roller 220. In the second rear roller 220, the space between adjacent convex rollers 221 is concave, so the first ribs 230 do not protrude from the outer circumferential surface of the second rear roller 220 (see FIG. 7).

[0040] As shown in FIG. 5, the lower roller holding portion 33 is also provided with a plurality of second ribs 240. The second ribs 240 are members that prevent the leading end of the gummed tape 51 from bending when it hits the surface of the water supply body 22 or from penetrating from the front side Z2 to the lower side Y2 of the water supply body 22 when the gummed tape 51 is fed out. As shown in FIG. 5, the second ribs 240 are arranged at equal intervals in the left-right direction X. The height of the second ribs 240 is configured to be lower than that of the water supply body 22 (see FIG. 7). Therefore, when the gummed tape 51 passes over the surface of the water supply body 22, the application portion 22b of the water supply body 22 is not prevented from contacting the adhesive layer 512 of the gummed tape 51.

[0041] As shown in Fig. 5, the second front roller 210 is disposed in approximately the center of the lower support frame 200 in the front-rear direction Z. As shown in Fig. 10A, an uneven portion 211 is provided on the outer peripheral surface of the second front roller 210 along the longitudinal direction X. A shaft 212 is attached to the center of rotation of the second front roller 210. The second front roller 210 is rotatably supported by the lower support frame 200 via the shaft 212. As shown in Fig. 5, an opening 201 is provided on the front side Z1 of the lower support frame 200, through which the water supply body 22 (water supply section 20) protrudes.

[0042] 10A, the first front roller 110 of the upper roller holding unit 32 and the second front roller 210 of the lower roller holding unit 33 are in contact with each other in the up-down direction Y, which is perpendicular to the longitudinal direction X of each roller. The second front roller 210 is not engaged with a gear mechanism of the roller drive unit 34 (described later), and therefore can rotate freely. The second front roller 210 rotates in accordance with the movement of the first front roller 110 of the upper roller holding unit 32 or the gummed tape 51 held between the first front roller 110 and the second front roller 210.

[0043] 9A and 9B, the second rear roller 220 is a roller arranged on the rear side Z2 of the lower roller holding portion 33. As shown in FIG. 10B, the second rear roller 220 is made up of a plurality of convex rollers 221. The convex rollers 221 are rollers whose central portions protrude radially outward and are arranged at predetermined intervals along the longitudinal direction X. The convex rollers 221 can be formed, for example, by providing an annular groove in the central portion of a resin roller and fitting an annular rubber ring into the groove.

[0044] A shaft 222 is attached to the rotation center of the second rear roller 220. The second rear roller 220 is rotatably supported by the lower support frame 200 via the shaft 222. As shown in Fig. 10B, the first rear roller 120 of the upper roller holding portion 32 and the second rear roller 220 of the lower roller holding portion 33 abut against each other in the up-down direction Y.

[0045] When the user operates the manual roller 31 to feed out the gummed tape, the first front roller 110 and the second front roller 210, and the second front roller 210 and the second rear roller 220, each rotate in a direction to feed out the gummed tape. As a result, the gummed tape held between the upper roller holding unit 32 and the lower roller holding unit 33 is fed in the forward direction Z1. On the other hand, when the user operates the manual roller 31 to pull back the gummed tape, the first front roller 110 and the second front roller 210, and the second front roller 210 and the second rear roller 220, each rotate in a direction to pull back the gummed tape. As a result, the gummed tape held between the upper roller holding unit 32 and the lower roller holding unit 33 is pulled back in the rear direction Z2. The gummed tape feeding and pulling back operations in the tape moving unit 30 will be described later.

[0046] Next, the configuration of the roller drive unit 34 will be described. The roller drive unit 34 includes a gear mechanism that transmits the rotational force generated when the manual roller 31 is advanced or retracted by the user to the first front roller 110, the second front roller 210, and the second rear roller 220. As shown in Figures 8, 9A, and 9B, the roller drive unit 34 includes a driving gear 300, a first driven gear 301, a second driven gear 302, a third driven gear 303, a fourth driven gear 304, a fifth driven gear 305, a sixth driven gear 306, and a seventh driven gear 307 as the gear mechanism.

[0047] The driving gear 300, the first driven gear 301, the second driven gear 302, the third driven gear 303, the fourth driven gear 304, and the fifth driven gear 305 are arranged on the left side X1 of the upper support frame 100 of the upper roller holding portion 32. The sixth driven gear 306 is arranged on the right side X2 of the upper support frame 100. The seventh driven gear 307 is arranged on the right side X2 of the lower support frame 200.

[0048] The main gear 300 is attached to the same shaft 310 as the manual roller 31. The rotational force generated when the user turns the manual roller 31 with their fingers is transmitted to the main gear 300 via the shaft 310. The rotational force transmitted to the main gear 300 is then transmitted to the above-mentioned rollers via the other driven gears.

[0049] The first driven gear 301 is a gear that fits with the driving gear 300. The first driven gear 301 is rotatably supported on the upper support frame 100 via a shaft 311. The rotational force transmitted from the driving gear 300 to the first driven gear 301 is transmitted to the second driven gear 302 and the fourth driven gear 304.

[0050] The second driven gear 302 is a gear that engages with the first driven gear 301. The second driven gear 302 is rotatably supported by the upper support frame 100 via a shaft 312. The rotational force transmitted from the first driven gear 301 to the second driven gear 302 is transmitted to the third driven gear 303. The third driven gear 303 is a gear that transmits the rotational force transmitted from the second driven gear 302 to the first front roller 110. The third driven gear 303 is attached to the same shaft 112 as the first front roller 110.

[0051] The rotational force transmitted from the manual roller 31 is transmitted to the first front roller 110 via the above-mentioned driving gear 300, first driven gear 301, second driven gear 302, and third driven gear 303. As a result, the first front roller 110 rotates in conjunction with the rotation of the manual roller 31 so as to move the gummed tape in the feeding direction or the retracting direction.

[0052] The fourth driven gear 304 is a gear that engages with the first driven gear 301. The fourth driven gear 304 is rotatably supported by the upper support frame 100 via a shaft 313. The rotational force transmitted from the first driven gear 301 to the fourth driven gear 304 is transmitted to a fifth driven gear 305. The fifth driven gear 305 is a gear that transmits the rotational force transmitted from the fourth driven gear 304 to the first rear roller 120. The fifth driven gear 305 is attached to the left side X1 of the upper support frame 100, on the same shaft 122 as the first rear roller 120.

[0053] The rotational force transmitted from the manual roller 31 is transmitted to the first rear roller 120 via the above-mentioned drive gear 300, first driven gear 301, fourth driven gear 304, and fifth driven gear 305. As a result, the first rear roller 120 rotates in conjunction with the rotation of the manual roller 31 so as to move the gummed tape in the feeding direction or the retracting direction. The number of gears interposed between the drive gear 300 and the third driven gear 303 is the same as the number of gears interposed between the drive gear 300 and the fifth driven gear 305. Therefore, the first front roller 110, which is coaxial with the third driven gear 303, and the first rear roller 120, which is coaxial with the fifth driven gear 305, rotate in the same direction in conjunction with the rotational force transmitted from the manual roller 31 (drive gear 300).

[0054] The sixth driven gear 306 is a gear that transmits the rotational force transmitted to the first rear roller 120 to the seventh driven gear 307. As shown in FIG. 9B, the sixth driven gear 306 is attached to the same shaft 122 as the first rear roller 120, on the right side X2 of the upper support frame 100 (see FIG. 8). The seventh driven gear 307 is a gear that meshes with the sixth driven gear 306. As shown in FIG. 9B, the seventh driven gear 307 is attached to the same shaft 222 as the second rear roller 220, on the right side X2 of the upper support frame 100 (see FIG. 8). The rotational force transmitted from the sixth driven gear 306 to the seventh driven gear 307 is transmitted to the second rear roller 220.

[0055] The rotational force transmitted from the manual roller 31 is also transmitted to the first rear roller 120 via the above-mentioned driving gear 300, first driven gear 301, fourth driven gear 304, and fifth driven gear 305. The rotational force transmitted to the first rear roller 120 is transmitted to the sixth driven gear 306 and then to the seventh driven gear 307, which are attached on the same shaft. The second rear roller 220 of the lower roller holding unit 33 rotates due to the rotational force transmitted to the seventh driven gear 307, but the second rear roller 220 rotates in the opposite direction to the first rear roller 120.

[0056] Next, the operation of the tape moving unit 30 will be described. Figures 11(A) to 11(C) are diagrams illustrating the operation of the tape moving unit 30. Here, the operation when the leading end of the dried gummed tape 51 is pulled back into the tape dispenser 1 and then sent out again will be described. Note that each of the sub-diagrams in Figure 11 only illustrates the gummed tape 51, the manual roller 31 of the tape moving unit 30, the first front roller 110, the first rear roller 120, the second front roller 210, the second rear roller 220, and the water supply body 22 of the water supply unit 20, and does not illustrate the driven gears and the like described with reference to Figure 8 etc.

[0057] In FIG. 11(A), when pulling back the leading end 151 of the gummed tape 51 dispensed from the tape dispenser 1, the user performs a pull-back operation by turning the manual roller 31 clockwise (in the direction of arrow A). When the manual roller 31 is turned clockwise, the first front roller 110 and the first rear roller 120 each rotate counterclockwise (in the direction of arrow B). The second rear roller 220 rotates clockwise (in the direction of arrow A). Furthermore, the second front roller 210 rotates clockwise in conjunction with the movement of the gummed tape 51. As a result, the gummed tape 51 moves in the pull-back direction Z2. The range of the leading end 151 of the gummed tape 51 is not particularly limited, but is, for example, a range of approximately 5 to 10 cm from the leading end.

[0058] 11(B), the user can pull back the tip 151 of the duct tape 51 to the rear side Z2 of the water supply body 22 (water supply section 20) by turning the manual roller 31 clockwise. When the tip 151 of the duct tape 51 is pulled back to the rear side Z2 of the water supply body 22, the dried tip 151 of the duct tape 51 can be wetted by the water supply body 22.

[0059] Next, as shown in FIG. 11(C), the user performs a feeding operation by turning the manual roller 31 counterclockwise (in the direction of arrow B). When the manual roller 31 is turned counterclockwise, the first front roller 110 and the first rear roller 120 each rotate clockwise (in the direction of arrow A). The second rear roller 220 rotates counterclockwise (in the direction of arrow B). Furthermore, the second front roller 210 rotates counterclockwise as the duct tape 51 moves. This allows the leading end 151 of the duct tape 51 to move to the front side Z1 of the tape transfer section 30 (for example, outside the take-out opening 39 shown in FIG. 2). When the leading end 151 of the duct tape 51 is fed from the rear side Z2 of the water supply body 22 to the front side Z1, the leading end 151 of the duct tape 51 comes into contact with the water supply body 22 again. Therefore, even if the tip 151 of the gummed tape 51 that has been pulled back once becomes dry or semi-dry, the user can rewet it with the water supply body 22 by performing the feeding operation.

[0060] The user can pull out the required amount of gummed tape 51 wound around tape body 50 by pressing tip 151 of gummed tape 51, which has been wetted with water, against the sealing portion of the package, and pulling tape dispenser 1 in a predetermined direction. At this time, gummed tape 51 pulled out from tape body 50 can also be wetted with water supply body 22, allowing it to develop adhesive strength. After applying gummed tape 51 pulled out from tape dispenser 1 to the sealing portion of the package, the user tilts front side Z1 of tape dispenser 1 toward the gummed tape and brings it into contact with cutter blade 38 (see FIG. 2). Then, by twisting tape dispenser 1 in a predetermined direction, gummed tape 51 can be cut at the desired position.

[0061] According to the tape dispenser 1 of the present embodiment described above, for example, the following effects are achieved. According to the tape dispenser 1 of this embodiment, a user can turn the manual roller 31 provided on the tape dispenser 1 in a predetermined direction to pull back into the tape dispenser 1 the gummed tape that has been pulled out from the outlet 39 (see FIG. 2) of the tape dispenser 1, or feed it out again from the outlet 39. Therefore, the tape dispenser 1 of this embodiment is easy to operate when pulling back or feeding the gummed tape.

[0062] Furthermore, with conventional tape dispensers, when retracting or feeding gummed tape, the user had to change the grip of the tape dispenser from one hand and support it with both hands while turning the tape body or pulling out the gummed tape. In particular, when wetting the tip of dried gummed tape with water, the user had to open upper roller holding portion 32 to expose water supply body 22 of the tape dispenser and press the tip of the pulled-out gummed tape against water supply body 22 with their fingers. In contrast, with tape dispenser 1 of the present embodiment, the user can operate manual roller 31 while holding tape dispenser 1 with one hand to retract or feed gummed tape, thereby more efficiently applying gummed tape to packages.

[0063] In the tape dispenser 1 of this embodiment, the tape moving unit 30 is composed of an upper roller holding unit 32 having first rollers (first front roller 110, first rear roller 120) that contact the first surface 51a of the duct tape, and a lower roller holding unit 33 having second rollers (second front roller 210, second rear roller 220) that contact the second surface 51b of the duct tape. This allows the duct tape held between the upper roller holding unit 32 and the lower roller holding unit 33 to be more stably dispensed and retracted. For example, in some conventional tape dispensers, when dispensing water-soaked duct tape toward the dispenser opening, the duct tape may bend inside the dispenser, preventing it from being dispensed through the dispenser opening. In this case, the user must pull out the leading end of the duct tape with their fingers and guide it to the dispenser opening. However, with the tape dispenser 1 of this embodiment, when the water-soaked gum tape is dispensed toward the outlet, the gum tape is less likely to bend inside the tape moving section 30, thereby preventing the problem of the gum tape being unable to be dispensed from the outlet.

[0064] In the tape dispenser 1 of this embodiment, the roller drive unit 34 includes a gear mechanism that transmits the rotational force generated when the manual roller 31 is advanced or retracted by the user to the first front roller 110, the second front roller 210, and the second rear roller 220. Therefore, in the tape dispenser 1, the rotational force generated when the user turns the manual roller 31 with their fingers can be more reliably transmitted to each roller.

[0065] In the tape dispenser 1 of this embodiment, the tape moving section 30 is provided with a plurality of first ribs (restraining members) 230 on the lower support frame 200. This makes it possible to prevent the gummed tape 51 (adhesive layer 512) from sticking to the first rear roller 120 and / or the second rear roller 220 when the gummed tape 51 is fed out or pulled back after becoming wet with water. This makes it possible to prevent the gummed tape from bending or tangling inside the tape dispenser 1, which can cause problems such as tape jams.

[0066] In the tape dispenser 1 of this embodiment, the tape moving section 30 has a plurality of second ribs 240 on the lower support frame 200. Therefore, when the gummed tape 51 is fed out, it is possible to prevent the leading end of the gummed tape from bending when it hits the surface of the water supply body 22, or from entering the water supply body 22 from the front side Z2 to the lower side Y2.

[0067] In tape dispenser 1 of this embodiment, manual roller 31 is disposed between water supply body 22 of water supply unit 20 and tape holder 10 in the front-rear direction Z. This avoids problems such as an increase in the size of tape dispenser 1 or a complicated mounting structure for tank 21 of water supply unit 20, which would occur if manual roller 31 were disposed between water supply unit 20 and cutter blade 38, for example.

[0068] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and variations, such as those described below, are possible, and are also within the technical scope of the present invention. Furthermore, the effects described in the embodiments are merely a list of the most preferable effects resulting from the present invention, and are not limited to those described in the embodiments. Note that the above-described embodiments and the modifications described below can also be used in appropriate combinations, but detailed description thereof will be omitted.

[0069] (Variations) In the embodiment, when the tape moving unit 30 is viewed from the left direction X1, an example has been described in which turning the manual roller 31 counterclockwise (first direction) causes the duct tape to be fed out, and turning it clockwise (second direction) causes the duct tape to be retracted, but this is not limiting. The roller driving unit 34 (see FIG. 8) may be configured so that turning the manual roller 31 counterclockwise causes the duct tape to be retracted, and turning it clockwise causes the duct tape to be fed out.

[0070] In the tape dispenser 1 of the embodiment, an example has been described in which the first rollers of the upper roller holding unit 32 include the first front roller 110 and the first rear roller 120, and the second rollers of the lower roller holding unit 33 include the second front roller 210 and the second rear roller 220, but this is not limiting. The upper roller holding unit 32 may be configured to include one roller, or may be configured to include three or more rollers. The same applies to the lower roller holding unit 33.

[0071] In the tape dispenser 1 of the embodiment, the manual roller 31 as the operating member is provided approximately in the center of the upper cover 35, but the present invention is not limited to this. The manual roller 31 may be provided, for example, on the right or left side of the tape moving unit 30. The operating member is preferably provided in a position where the user can operate it while holding the tape dispenser 1. [Explanation of symbols]

[0072] 1 tape dispenser 10 Tape holder 20 Water supply section 22 Water supply body 30 Tape moving section 31 Manual Roller 32 Upper roller holding portion 33 Lower roller holding part 34 Roller drive unit 50 Tape body 230 First Rib 240 Second Rib

Claims

1. A tape dispenser used to attach a tape having a water-soluble adhesive layer to an object, a tape holder that rotatably holds the tape wound into a roll; a water supply unit that supplies moisture to the adhesive layer of the tape; a tape moving unit that moves the tape held by the tape holder in a feeding direction or a retracting direction in response to an operation by a user, The tape moving unit includes: an operating member that moves the tape in the feeding direction when operated in a first direction by a user, and moves the tape in the retracting direction when operated in a second direction opposite to the first direction by a user; Tape dispenser.

2. The tape moving unit includes: a manual roller as the operating member; a first roller holding portion including a first roller that contacts the first surface of the tape; a second roller holding portion including a second roller that contacts a second surface of the tape opposite to the first surface; a roller driving unit that rotates the first roller and the second roller so that the tape held between the first roller and the second roller moves in the feed-out direction when the manual roller is rotated in the first direction, and that rotates the first roller and the second roller so that the tape held between the first roller and the second roller moves in the pull-back direction when the manual roller is rotated in the second direction; The tape dispenser of claim 1 , comprising:

3. The roller driving unit a gear mechanism that transmits a rotational force when the manual roller is rotated in the first direction or the second direction to the first roller holding portion and the second roller holding portion; 3. The tape dispenser of claim 2.

4. the tape moving unit includes a suppression member that suppresses the tape from sticking to the first roller and / or the second roller when the tape is fed out or pulled back.

4. The tape dispenser according to claim 2 or 3.

5. the water supply unit includes a water supply body that contacts the adhesive layer of the tape; The tape dispenser according to claim 2 or 3, wherein the manual roller is disposed between the water supply body and the tape holder in the front-rear direction of the tape dispenser.

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