JP2003206067A - Adhesive tape cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tape cutter provided with a compact folding mechanism for an adhesive tape side end part having a dimensional/positional relationship allowing stable formation of a folding part of an adhesive tape, capable of smoothly and surely folding it, and of being put on a holder or the like such as a desk, simply usable by a user by holding it in his or her hand and having a small outside dimension. <P>SOLUTION: An extremely realistic and highly practical structure allowing stable formation of the folding part of the adhesive tape by specifying a dimensional/positional relationship is provided. An innovative method for realizing this adhesive tape cutter is equipped with the compact folding mechanism for a side end part capable of realizing smooth and stable folding work being accomplished by carrying out the folding work in multiple stages, capable of being put on a holder or the like such as a desk, simply usable by a user by holding it in his or her hand and having a small outside dimension. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a tape cutter having unwinding support means for rotatably unwinding a tape reel containing an adhesive tape and cutting means for cutting off the adhesive tape unwound from the tape reel.

[Prior art]

As a device for folding back the longitudinal end portion of the adhesive tape, there is, for example, a device shown in Japanese Patent Application No. 2000-5078. In this case, a side folding guide roller is placed over the end face of the first feeding and holding roller. Therefore, the tape has a drawback that the distance is too short and the tape does not always bend downward.

The bending of the pressure-sensitive adhesive tape has the property of always springing back although there is a difference in the degree depending on the material.
When actually bending an adhesive tape, it is necessary to consider and take measures against that point.However, the side folding guide rollers are too close to each other, and the side folding guide rollers do not bend completely and collide with the side folding guide rollers. It was also confirmed that when the tape was slightly warped upward, the adhesive surface of the tape came into contact with the side folding guide roller, was bent in the opposite direction, adhered due to the adhesive force, and did not kink due to gnnyagnya.

Further, since the position of the first feeding holding roller is not regulated with respect to the feeding guide roller and the second feeding roller, the stability of the bending direction selection and the bending degree are insufficient. Since it has not been confirmed, the tape does not always bend downwards as described above, and sometimes the adhesive surface of the tape that slightly warps due to the habit of the tape contacts the side folding guide roller and bends in the opposite direction, and the adhesive force It was often confirmed that the folded-back portion was not formed well due to the fact that the folded-back portion did not kink and did not function properly, or collided with the side folding guide roller with an insufficient bending degree.

For this reason, when it is attempted to forcibly form a bent portion by applying a large tension, it is often confirmed that, in an actual example of a commonly used adhesive tape, the adhesive tape is cut due to the tension. .

Also, the adhesive tape has the property of springing back even if it is folded by the first feeding-holding roller or the side folding guide roller, and when the actual adhesive tape is bent, the intermediate lower surface side folding roller has a conical shape. Since it is a roller of one side, it contacts the tape at one cone angle, so it is fixed in a long range where the angle is in contact with the conical surface, and since it is a cone, the maximum diameter increases, so the distance in the longitudinal direction It also had the drawback of making the device large.

Therefore, even if a person holds down the side folding guide roller with his / her finger or the like and folds it well at 90 degrees, it springs back while coming to the intermediate lower surface side folding roller, and it is below 90 degrees. However, since the intermediate lower surface side folding roller can perform only one step of bending with a fixed angle, the intermediate lower surface side folding roller cannot be reliably delivered to the intermediate lower surface side folding roller, resulting in insufficient bending. It was confirmed that the folded-back portion was not formed well due to the collision with the conical surface to a certain degree, and that a single step of the intermediate lower surface side folding roller would not break unless additional means such as pressing from above was added.

Further, the pressure-sensitive adhesive tape discharged from the intermediate lower surface side folding roller is spring-backed and is not completely adhered, and the folded-back portion is not well formed due to collision with the second feeding roller with an insufficient degree of bending. It was confirmed by an experiment by the inventor about 100 times that the second delivery roller could not be passed to bend up to 180 degrees and could not be used for stable practical use.

For this reason, it is possible to arrange the conical rollers in multiple tandem arrangements at different angles as shown in a rolling mill and bend them surely. However, since the longitudinal dimension of the device interferes with the diameter, the pitch of each stage is equal to the number of rollers. Was a total of multiples and became very long, and it became a large bad handling device, which was difficult to use in practice.

Further, in the example shown in Japanese Patent Application No. 2-97870, the molding roller 3 is displaced in a large V shape with respect to the tape winding body and the guide fitting 4, and the tape is largely bent at the position of the molding roller 3. However, in this case, the angle is too large at the bent part of the adhesive tape, so that the slack becomes large and the bent part is wrinkled, and the wrinkles cause the adhesive surfaces to entangle themselves, which is very practical. However, it was confirmed that the sharp bending is not appropriate in the actual adhesive tape of the present invention.

Further, in a device for bending a tape other than the adhesive tape, the position and size described in the present invention are not always necessary, and a similar example of a material that does not spring back or a tape in which the bent portion is difficult to wrinkle is a technique. However, the technical field of the present invention is completely different from that of the present invention even if they have different required functions and are similar in form.

[Problems to be Solved by the Invention]

Therefore, due to the size and positional relationship in which the folded-back portion of the adhesive tape is stably formed, it can be bent more smoothly and surely and placed on a table such as a desk or held by an operator. There has been a demand for a tape cutter that has a compact outer shape and a folding mechanism for the end portion of the side of the adhesive tape that can be easily used.

[Means for Solving the Problems]

In a tape cutter having a unwinding support means for rotatably unwinding a tape reel containing an adhesive tape and a cutting means for cutting off the adhesive tape unwound from the tape reel, a discharge side of the unwinding support means is provided. The adhesive tape has a moving and positioning means for moving it in the width direction, the discharge side of the moving and positioning means has a peculiar roller, and the side end 1c of the adhesive tape is folded back and adhered to the eject side of the peculiar roller. It has a multi-stage inclined guide piece for folding back to the surface 1b by 180 degrees, has a pressing means for closely contacting the folded-back portion on its discharge side, and has a cutting means on the discharge side for the final movement positioning means. The distance L of the straight line A connecting the tape contact and the first tape contact of the pressing means is L = (2.0 to 5.0) × D with respect to the outer diameter Dφ of the curling roller.
And the distance M orthogonal to the straight line A is M = (0.0
2 to 0.5) × L, by arranging the contact point of the roller with the habit, the tension applied to the pressure-sensitive adhesive tape causes crease in the direction of fold of the end of the pressure-sensitive adhesive tape and formation of the fold-back portion of the pressure-sensitive adhesive tape. Provide a stable adhesive tape cutter.

Further, the free end surface of the habit forming roller and the end surface of the support flange of the moving positioning means are arranged in the horizontal direction so that the folding width W2 of the adhesive tape of the moving positioning means is formed to be W2 = 1.5 to 25 mm. An adhesive tape cutter characterized in that the distance is W2. In addition, the bending angle θ of the end portion of the adhesive tape at the contact contact 6a of the peculiar roller is formed to be 45 ° ± 30 °, and then the first side of the multistage inclined guide piece is provided on the discharge side of the peculiar roller. The step is spaced apart from the habit roller, and the first step forms a bending angle θ in the discharge side cross section at 75 ° ± 30 °,
Next, the bending angle from the second step to the final step of the multi-step inclined guide piece is increased stepwise in multiple steps of 30 degrees ± 20 degrees, and is bent so that the final angle θ = 180 degrees. To provide an adhesive tape cutter.

There is provided an adhesive tape cutter characterized in that the unwinding support means is composed of at least two supporting rollers which rotatably support by sandwiching the adhesive tape. Further, the inner diameter of the roller of the positioning means, or the tapered roller at least one of the supporting rollers of which is rotatably supported, or the fixed side of the roller fitted to the fixed shaft is slightly larger than the outer diameter of the fixed shaft. The inner diameter of the tip side is an inclined roller formed to be larger than the inner diameter of the fixed side so as to be inclined with respect to the fixed axis, and the taper roller or the inclined roller moves the tape to the roller tip portion by the tension of the tape. There is provided an adhesive tape cutter having an action and having a positioning flange on the tip side of the taper roller or the inclined roller.

Further, the movable lid provided rotatably or movably with respect to the main body base is constituted by a member arranged on the non-adhesive surface side of the adhesive tape among the positioning means, the multi-stage inclined guide piece and the pressing means. The adhesive tape cutter is characterized in that when the movable lid is attached, the upper member moves, and the upper member moves so that the adhesive tape can be used without being folded and a new set of the adhesive tape can be easily set. provide.

Further, there is provided an adhesive tape cutter characterized in that it has biaxial finger cutting prevention means on the discharge side of the cutter. Further, the present invention provides an adhesive tape cutter characterized in that a folding mechanism is provided on both sides of the adhesive tape to form the folded-back portions on both sides.

DETAILED DESCRIPTION OF THE INVENTION

In the present invention, the base material of the adhesive tape is a flexible cloth, cellophane, paper, resin film, organic or inorganic film having natural degradability, rubber, non-woven fabric, gauze, metal film, wood. The target is an adhesive tape which is made by attaching an adhesive to one surface of a strip-shaped thin plate such as a film-making film and winding it on a reel. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Example 1]

FIG. 1 is a plan view of a desk-top type embodiment, which is the first embodiment of the present invention, FIG. 2 is a side view of its section AA, and FIG. 3 is a state in which an opening / closing lid is opened. 2 is an overall perspective view of FIG. To describe the overall structure, as shown in FIG. 2, the adhesive tape 1 is unwound by the unwinding support means 3 in which the tape reel 2 is rotatably supported, and communicated with the movement positioning means 5 via the guide roller 4. , The contact roller 6 arranged on the discharge side thereof, contacting with the multi-stage inclined guide piece 7 arranged on the discharge side thereof, and further passing through the pressing means 8 arranged on the discharge side, the take-out area 9 It is communicated with the cutting means 10 through the gap, is cut by the cutting means 10, and is provided with a finger cutting prevention means 11 on the discharge side thereof. The main body base 50 is placed on a stand 51 such as a desk and supports and fixes these mechanisms.

Next, the unwinding means will be described. The unwinding supporting means 3 includes at least two supporting rollers 3a.
And 3b and is rotatably supported by the support shafts 3c and 3d. The main body base 50 is supported via the support shafts 3c and 3d.
It is fixed to. A support lever 3e is provided below the tape reel 2 to prevent the tape reel 2 from jumping out. The spring force of the support spring 3f constantly pushes the adhesive tape in the discharge side direction to prevent the tape from sticking out from the main body base 50. ing.

With such a structure, the tape reel 2 is driven by the tension of the tape without providing a reel shaft (not shown) in the central opening 2a which has been frequently used conventionally.
Since it can be rotatably held in close contact with the individual support rollers 3a and 3b, the tape reel 2 can be easily mounted without the need to pass through the reel shaft of the central opening 2a as in the conventional example.

Further, the adhesive tape 1 is made by the guide roller 4.
Since the tape reel 2 can be arranged in the space below the main body base 50 because it is reversed, the length and height of the main body base can be greatly shortened, and the tape reel 2 can be installed even on a narrow stand 51, which saves a lot of space. Was achieved.

FIG. 4 shows another embodiment of the arrangement of the tape reel 2. In this embodiment, the main body base 50 of the tape cutter becomes large contrary to the above-mentioned embodiment, but the tape reel 2 can be mounted from above. Therefore, there is an advantage that the tape reel 2 can be easily replaced.

Next, as shown in FIG. 3, an opening / closing lid 52 is movably attached to the upper part of the main body base 50 such that the opening / closing lid 52 can be swung or slid. Adhesive tape 1 of pressing means 8
The upper member 53 arranged on the non-adhesive surface 1a side is fixed to the opening / closing lid 52. Further, members other than the upper member 53 are fixed to the main body base, and constitute the entire mechanism.

Next, the end folding mechanism will be described.
FIG. 5 is a detailed cross-sectional view showing the detailed arrangement of the movement positioning means 5, the curling roller 6, the multi-stage tilt guide piece 7 and the pressing means 8. The final tape contact 5a of the moving positioning means 5
The straight line A connecting the first tape contact 8a of the pressing means 8 and the outer shape D of the folding-back roller 6 has a distance L =
(2.0 to 5.0) × D, and more preferably L = 2.
5 to 3.5) × D, and the distance M orthogonal to the straight line A is M = (0.02 to 0.5) × L, and more preferably M
The tape contact 6a of the habit forming roller 6 is arranged at a position of = (0.03 to 0.3) × L.

With this structure, the tension applied to the adhesive tape allows the end portion of the adhesive tape to be bent in the folding direction and the folded portion can be stably formed. Therefore, the side end 1c of the adhesive tape 1 can be bent and bent along the straight line A by the tension applied to the adhesive tape.

As described above, this is because the distance L is 5.0 × D or more, and if it is unnecessarily large, the device becomes large and the merit of downsizing disappears. It is because there is a limit to suitability because 7 cannot be arranged.

With respect to the distance M, as described above, in the dimensional ratio with respect to the distance L, if M is too small, that is, 0.02 L or less, the habit of folding is not sufficiently formed, and the folding direction becomes unstable due to springback. Also, the distance M is 0.5 × L
It has been confirmed by actual experience that, in the above cases, slackening occurs and entanglement of the adhesive tape occurs.

Therefore, it has been found that the ratio between the distance L and the distance M is extremely important, and the required function cannot be sufficiently fulfilled in a device configuration in which the relationship between them is not sufficiently grasped.

Next, the moving positioning means will be described.
FIG. 6 is a cross-sectional view showing a taper roller 20 which is one embodiment of the movement positioning means 5. Taper roller 20
Is rotatably supported by a support shaft 21 provided at the center, and the support shaft 21 is fixed to a movable lid 53.

The adhesive tape side end 1c slides to the free end side and moves to the free end side end 20b of the tapered surface 20a by the action of the tension applied to the adhesive tape. Then, it comes into contact with the positioning flange 22 and always stops there to perform horizontal positioning. This positioning serves as an important function for accurately determining the folding width W2 of the tape.

FIG. 7 is a sectional view showing an inclined roller 23 which is another embodiment of the movement positioning means 5. A hole 23c having an inner diameter that loosely fits into the support shaft 24 is opened on the fixed end side of the inclined roller 23, and the support shaft 2 is rotatably supported.
4 is fixed to the movable lid 53. On the other hand, a hole 23d is formed on the free end side of the inclined roller 23 and has an inner diameter larger than that of the hole 23c.
The tilt roller 23 is formed by the gap between the support shaft 24 and the support shaft 24.
Is inclined, and the adhesive tape side end 1c slides to the free end side and moves to the free end side end portion 23b of the outer peripheral surface 23a by the action of the tension applied to the adhesive tape. Then, it comes into contact with the positioning flange 22, and the horizontal positioning is performed there.

Next, a description will be given of the habit roller with reference to FIG.
FIG. 6 is a cross-sectional view showing a roller 25 that is one example of the prominent roller 6. In this case, since the roller 25 has a simple cylindrical shape, the pressure sensitive adhesive surface of the pressure sensitive adhesive tape 1 is likely to adhere thereto. As described above, the support shaft 26 is rotatably supported by the support shaft 26 provided at the center of the roller 25, and the support shaft 26 is fixed to the main body base 50.

FIG. 9 is a cross-sectional view showing a grooved roller 27 which is another embodiment of the curling roller 6. Grooved roller 2
It has been confirmed that at least one row of grooves 27a is provided on the outer peripheral surface of 7, and the adhesive tape 1 is in contact only with the ridges 27b, so that the adhesive area is reduced and it is difficult to adhere. Is similar to FIG. Hereinafter, the function will be illustrated and described by using an example of the grooved roller 27.

FIG. 10 is a sectional view taken along the line BB in FIG. 5, showing the horizontal arrangement of the moving positioning means 5 and the curling roller 6. The folding width W2 of the folding portion 1e of the adhesive tape 1 is equal to the end portion 2 of the positioning flange 22 of the moving positioning means 5.
It is formed by arranging so that the distance from 0b to the end portion 6b of the curling roller 6 is W2.

However, if the folding width W2 is too small, it is difficult to fold the tape due to the spring back of the adhesive tape, and if the tension is applied too much, the adhesive tape is cut. Therefore, the inventor confirmed by experiments that the folding width W2 has a practical minimum limit. Also W2
If too large, as shown in FIG. 5, slack is caused by the difference between the length L of the adhesive tape from the tape contact 5a to the tape contact 8a via the tape contact 6a and the distance L of the straight line A. Absorbed by the elongation of 1,
It was confirmed that if W2 is too large, the slack cannot be absorbed, and the entanglement of the pressure-sensitive adhesive tape 1 occurs, so that W2 is too large.

Further, the folding portion 1e is formed for the purpose of peeling off the adhesive tape by a person using a nail or a fingertip. From the viewpoint of ergonomics, the fingertip size from a child to an adult of a person is wide from the medical index to the width of the index finger. It is said that the thickness is 8 mm to 18 mm, and the thickness is 7 mm to 14 mm at the tip middle portion of the nail.

Therefore, it has been found that when the folding width W2 of the folding portion 1e which is easy to peel off is at least 1.5 mm or more, the ease of peeling is drastically improved. Further, if it is more than that, peelability is naturally improved, but if it is too large, the effect of improving peelability is lost and it is not economical to increase the tape width further. From the above synergistic effect, it has been discovered that it is desirable that the minimum width of W2 is 1.5 mm or more and the maximum width is 25 mm or less due to the occurrence of the slack and the economic effect.

Next, the mechanism for folding the adhesive tape will be described. As shown in FIG. 8, the bending angle θ at that position is about 45 ° ± 30 at the end portion 6b of the curling roller 6 due to the action of the tension of the adhesive tape. Formed every time.

Next, the multi-stage tilt guide piece will be described.
The first step 30 of the multi-step tilt guide piece 7 is arranged on the discharge side of the roller 6 with a habit and spaced from the roller 6 with a habit. The first stage has a bending angle θ as shown in FIG.
Is arranged at a position on the discharge side of 75 ° ± 30 °. The discharge thickness of the first stage is usually 5
It is composed of ~ 20 mm. FIG. 12 shows a plan view thereof, in which a corner 30a on the entry side of the first step 30 is provided with a chamfer or an R portion for smooth introduction.

Next, from the second stage to the final stage of the multi-stage tilt guide piece, the folding angle θ is set in multiple stages so that smooth folding can be performed. The embodiment shown in FIGS. 13 to 15 is configured to be bent stepwise at intervals of 30 ° ± 20 ° so that the final angle θ = 180 °.

FIG. 13 shows a sectional view of the second stage 31, and the bending angle θ is, for example, 1 at the discharge side position of the second stage.
It is arranged so that the angle is 05 degrees ± 30 degrees. Also the second
The thickness of the step in the discharge direction is usually 1 to 5 mm. FIG. 14 shows a cross-sectional view of the third stage 32. The bending angle θ is, for example, 135 ° ± 3 at the discharge side position of the third stage.
It is arranged to be 0 degrees. The thickness of the third stage in the discharge direction is usually set to 1 to 10 mm. Figure 1
5 shows a cross-sectional view of the receiving block 33 and the upper guide 34 of the fourth stage, and the bending angle θ is arranged on the discharge side thereof, for example, 165 ° ± 15 °. The thickness of the receiving block of the fourth stage in the discharge direction is
Usually, it is configured to be 5 to 25 mm. The shape of the contact portion of the upper guide 34 with the adhesive tape may be either a guide piece having an R-shaped or flat sliding surface, or a roller. Especially when it is used as a roller, the frictional resistance is reduced and the adhesive tape slides smoothly. Figure 1
6 shows a sectional view of the upper roller 35 of the pressing means 8.

Next, the pressing means 8 is composed of an upper roller 35 and a lower roller 36 as one of the embodiments. As shown in FIG. 5, the apex position of the lower roller 36 is lower than the lowest point of the upper roller 35. When the pressure is high, a pressing effect is given, and the folding portion 1e of the pressure-sensitive adhesive tape 1 is pressed by the pressure-sensitive adhesive so that the pressure-sensitive adhesive tape is completely adhered, and the folding process is completed.

Next, the adhesive tape 1 is stretched over the take-out area 9 and communicated with the cutting means 10 to be manually cut to an appropriate length. The cutting means 10 may of course be provided with an adhesive stop 40 as shown in FIG.

The opening / closing mechanism of the opening / closing lid 52 will be described in detail. FIG. 3 is a perspective view of the opening / closing lid 52 when it is opened.
As shown in FIG. 3, the opening / closing lid 52 is movably fixed to the main body base 50 by a rotary fixing tool 54 such as a hinge or hinge, or a slide mechanism 55 (not shown).

On the opening / closing lid 52, the adhesive tape 1 of the moving / positioning means 5, the multi-stage tilt guide piece 7 and the pressing means 8 is provided.
The upper member 53 arranged on the non-adhesive surface 1a side is fixed to the opening / closing lid 52. Further, members other than the upper member 53 are fixed to the main body base, and constitute the entire mechanism.

Next, as shown in FIG. 3, finger cutting prevention means 11 is provided on the discharge side of the cutting means 10. For example, shafts 38 are provided on both sides of the adhesive tape 1 and the shaft 380 has, for example, windmill blades. A car 39 is rotatably provided. In the central part, the adhesive tape 1 can be pulled out by feeding the adhesive tape downward between the blades of the impeller 39 by rotating the blades of the impeller 39, but since the fingers have the above-mentioned thickness, the distance between the tips of the left and right blades is, for example, 1 It is set to ~ 5 mm, and it is placed in close proximity so that the fingers do not pass through during use.
It is possible to safely cut the adhesive tape 1 without being in contact with the cutting means 10 by being disturbed by 1.

Next, a hand cutter mainly used for packing will be described. 17 to 19 show an embodiment of a portable hand cutter having no main body base. The embodiment of this portable hand cutter is suitable for an adhesive tape having a width of about 50 mm, and when packing various articles in a packaging box, an operator can cut the adhesive tape while holding it in his hand. It is like this.

The hand cutter 60 includes a main body bracket 61, a movable bracket 62 mounted on the outer side of the main body bracket 61, and the movable bracket 6.
2 has a cover 63 attached thereto.

One side of the main body bracket 61, that is, the left side in the figure is a tape storage portion 64.
4 is provided with a holder 65 as the unwinding support means 3, and the tape reel 2 is rotatably fixed to the body bracket 61 by the holder 65.

A part of the outer peripheral surface of the tape reel 2 is covered with the cover 63, and is rotatably attached to the movable bracket 62. Even if it decreases, it is always in contact with the outer peripheral surface of the tape reel 2. The cutting means 10 is fixed to the discharge side of the main body bracket 61 so that the adhesive tape 1 can be cut. Tape storage part 6
Between the cutting means 4 and the cutting means 4, the movement positioning means 5, the habit forming roller 6, the multi-stage tilt guide piece 7, and the pressing means 8 are provided.
Is provided.

Similar to the above-described embodiment, the upper member 53 disposed on the non-adhesive surface side of the adhesive tape is the movable bracket 62.
Is rotatably attached to the main body bracket 61 and the other parts are rotatably fixed to the main body bracket 61.

When the hand cutter 60 is pressed against an adhered member such as a packaging box, the pressing roller 66 of the pressing means 8 is pressed, and the adhesive tape 1 is pulled out by pulling the hand cutter 60 and cut by the cutting means 10. Is done.

When the tape reel 2 is to be replaced, FIG.
As shown by the alternate long and short dash line in FIG. 9, the fulcrum 67 can be opened, and the supporting portion of the curling roller 5 can move to the position indicated by the alternate long and short dashed line by moving the notch portion 68 provided in the main body bracket 61. it can. Therefore, the adhesive tape 1 can be easily attached.

Further, as described in claim 8, it is also possible to fold the both ends of the pressure-sensitive adhesive tape 1 by arranging the above-mentioned end folding function on both sides of the pressure-sensitive adhesive tape 1 symmetrically oppositely. Since this is a repetition of the description of the same function, detailed description and illustration thereof will be omitted. In this case, however, since the adhesive tape 1 has fold portions on both sides, the adhesive tape can be more easily peeled off, and in particular, a wide width. The structure fits the adhesive tape. Needless to say, the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the function thereof.

EFFECTS OF THE INVENTION As described above, by providing the dimensional and positional relationship in which the folded-back portion of the adhesive tape is stably formed, it is possible to provide an extremely realistic and highly practical structure which is possible only for the first time. The smooth and stable folding work that can be achieved for the first time is achieved by carrying out the multi-step, and it can be placed on a table such as a desk or used by a worker for easy operation, and the external dimensions are small. (EN) An epoch-making method which realizes an adhesive tape cutter equipped with a folding mechanism of a side end portion of a compact adhesive tape. Particularly in stores such as department stores, supermarkets and convenience stores, a large amount of goods and foods are packed, wrapped, transported and sold every day by adhesive tape, but almost all of them are peeled off at the time of use. In general companies, factories, government offices, schools, etc., a large amount of adhesive tape is used for transporting and packing postal items and courier, and most of these tapes are peeled off when they are opened. Therefore, there has been a demand for a tape cutter capable of stably and reliably forming an adhesive tape having a folded-back portion that is easily peeled off. However, the conventional structure cannot exhibit reliable performance because of the above-mentioned drawbacks in its form. The present invention has the above-mentioned functional effects.
At the above-mentioned worksites using adhesive tapes that are carried out every day in the country, it is possible to carry out those work extremely efficiently, and it is possible to achieve time savings and user-friendliness that could not have been expected until now. It was possible to provide an epoch-making method that is extremely beneficial and can achieve the economic effect by improving efficiency.

[Brief description of drawings]

FIG. 1 is a plan view showing one embodiment of the present invention.

FIG. 2 is a side view of section AA.

FIG. 3 is an overall perspective view showing a state in which an opening / closing lid 52 of one embodiment of the present invention is opened.

FIG. 4 is a side view showing another arrangement of the tape reel 2.

FIG. 5 is a detailed side view of the embodiment of the present invention.

FIG. 6 is a sectional view showing a taper roller 20.

FIG. 7 is a cross-sectional view showing a tilt roller 23.

FIG. 8 is a sectional view showing a roller 25.

FIG. 9 is a sectional view showing a grooved roller 27.

FIG. 10 is a cross-sectional view taken along line BB showing the arrangement of the moving positioning means and the habit forming roller 6.

FIG. 11 is a cross-sectional view showing a first step 30 of the multi-step tilt guide piece.

FIG. 12 is a plan view showing a first stage 30 of the multi-stage tilt guide piece.

FIG. 13 is a cross-sectional view showing a second step 31 of the multi-step tilt guide piece.

FIG. 14 is a cross-sectional view showing a third step 32 of the multi-step tilt guide piece.

FIG. 15 is a cross-sectional view showing a fourth step 33 of the multi-step tilt guide piece.

FIG. 16 is a sectional view showing an upper roller 35 of the pressing means.

FIG. 17 is an overall perspective view showing a hand cutter 60 of another embodiment.

FIG. 18 is a partially cutaway perspective view of a hand cutter 60 according to another embodiment.

FIG. 19 is a partially cutaway sectional view of a hand cutter 60 according to another embodiment.

[Explanation of symbols]

1 ... Adhesive tape 1a: Non-adhesive surface of adhesive tape 1b ... Adhesive surface of adhesive tape 1c …… The end of the adhesive tape on the folding side 1d ... Another side end of the adhesive tape 1e ...... folding part of adhesive tape 2 ... Tape reel 3 ... Unwinding support means 4 ... Guide roller 5: Moving and positioning means 5a ... the final tape contact of the moving positioning means 6 ... Roller with habit 6a ... tape contact of roller with habit 6b ... Free end of roller with habit 7: Multi-level tilt guide piece 8: pressing means 8a ... first tape contact of pressing means 9: take-out area 10 ... Cutting means 11 ... Finger-cut prevention means 20 ... Taper roller 20a ... tapered surface 20b ... End of free end of tapered surface 21, 24, 26 ... Support shaft 22 ... Positioning flange 23 ... Inclined roller 25: Roller 26: Grooved roller 30: First stage of multi-level tilt guide piece 31 ... Second stage of multi-stage tilt guide piece 32 ... Third stage of multi-stage tilt guide piece 33 ... Receiving block 34 ... Top guide 35 ... Upper roller 36 ... Lower roller 37: Adhesive stop 38 ... Axis 39: Impeller 50 ...... Main body base 51 ... Stand 52 ... Moving lid 52 ... Moving lid 53 ... Upper member 60: Hand cutter 61 …… Body bracket 62 ... Movable bracket 63 …… Cover 64: Tape storage section 65 …… Holder 66 ...... Pressing roller 67 ... fulcrum 68 ... Notch

[Procedure amendment]

[Submission date] February 7, 2003 (2003.2.7)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 5

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction content]

Next, as shown in FIG. 3, finger cutting prevention means 11 is provided on the discharge side of the cutting means 10. For example, shafts 38 are provided on both sides of the adhesive tape 1, and the shafts 38 have, for example, windmill blades. A car 39 is rotatably provided. In the central part, the adhesive tape 1 rotates the blades of the impeller and sends the adhesive tape downward between the blades to pull it out, but since the fingers have the above-mentioned thickness, for example, between the tips of the left and right blades
The distance is set to 5 mm, and the fingers are arranged close to each other so that they do not pass through during use. When the tape is cut, the finger is obstructed by the impeller 71 and the adhesive tape is safely cut without coming into contact with the cutting means 10. You can do it.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0055

[Correction method] Change

[Correction content]

When the tape reel 2 is to be replaced, FIG.
As shown by the alternate long and short dash line in FIG. 9, it is opened around the fulcrum 67, and the supporting portion such as the curling roller 6 is moved to the position indicated by the alternate long and short dashed line by moving the notch 68 provided in the main body bracket 61. You can Therefore, the adhesive tape 1 can be easily attached.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a plan view showing one embodiment of the present invention.

FIG. 2 is a side view of section AA.

FIG. 3 is an overall perspective view showing a state in which an opening / closing lid 52 of one embodiment of the present invention is opened.

FIG. 4 is a side view showing another arrangement of the tape reel 2.

FIG. 5 is a detailed side view of the embodiment of the present invention.

FIG. 6 is a sectional view showing a taper roller 20.

FIG. 7 is a cross-sectional view showing a tilt roller 23.

FIG. 8 is a sectional view showing a roller 25.

FIG. 9 is a sectional view showing a grooved roller 27.

FIG. 10 is a cross-sectional view taken along line BB showing the arrangement of the moving positioning means and the habit forming roller 6.

FIG. 11 is a cross-sectional view showing a first step 30 of the multi-step tilt guide piece.

FIG. 12 is a plan view showing a first stage 30 of the multi-stage tilt guide piece.

FIG. 13 is a cross-sectional view showing a second step 31 of the multi-step tilt guide piece.

FIG. 14 is a cross-sectional view showing a third step 32 of the multi-step tilt guide piece.

FIG. 15 is a cross-sectional view showing a fourth step 33 of the multi-step tilt guide piece.

FIG. 16 is a sectional view showing an upper roller 35 of the pressing means.

FIG. 17 is a perspective view showing a hand cutter 60 of another embodiment.

FIG. 18 is a partially cutaway perspective view of a hand cutter 60 according to another embodiment.

FIG. 19 is a partially cutaway sectional view of a hand cutter 60 according to another embodiment.

[Explanation of symbols] 1 ... Adhesive tape 1a: Non-adhesive surface of adhesive tape 1b ... Adhesive surface of adhesive tape 1c …… The end of the adhesive tape on the folding side 1d ... Another side end of the adhesive tape 1e ...... folding part of adhesive tape 2 ... Tape reel 3 ... Unwinding support means 4 ... Guide roller 5: Moving and positioning means 5a ... the final tape contact of the moving positioning means 6 ... Roller with habit 6a ... tape contact of roller with habit 6b ... Free end of roller with habit 7: Multi-level tilt guide piece 8: pressing means 8a ... first tape contact of pressing means 9: take-out area 10 ... Cutting means 11 ... Finger-cut prevention means 20 ... Taper roller 20a ... tapered surface 20b ... End of free end of tapered surface 21, 24, 26 ... Support shaft 22 ... Positioning flange 23 ... Inclined roller 25: Roller 26: Grooved roller 30: First stage of multi-level tilt guide piece 31 ... Second stage of multi-stage tilt guide piece 32 ... Third stage of multi-stage tilt guide piece 33 ... Receiving block 34 ... Top guide 35 ... Lower roller 36 ... Upper roller 37: Adhesive stop 38 ... Axis 39: Impeller 50 ...... Main body base 51 ... Stand 52 ... Opening / closing lid 53 ... Upper member 54 ... Rotary fixture 60: Hand cutter 61 …… Body bracket 62 ... Movable bracket 63 …… Cover 64: Tape storage section 65 …… Holder 66 ...... Pressing roller 67 ... fulcrum 68 ... Notch

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

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[Figure 5]

Claims (8)

[Claims] 1. A tape cutter having unwinding support means for rotatably unwinding a tape reel containing an adhesive tape and cutting means for cutting off the adhesive tape unwound from the tape reel, comprising: The discharging side has a moving positioning means for moving the adhesive tape in the width direction, the discharging side of the moving positioning means has a peculiar roller, and the ejection side of the peculiar roller has the adhesive tape side. Edge 1
It has a multi-stage inclined guide piece for folding back c to the adhesive backing surface 1b by 180 degrees, has a pressing means for closely contacting the folded-back portion on its discharge side, and has a cutting means on the discharge side for the movement positioning. The distance L of the straight line A connecting the final tape contact point of the means and the first tape contact point of the pressing means is L = (2.0 to 5.0) × D with respect to the outer diameter Dφ of the curling roller, A distance M orthogonal to the straight line A is M = (0.02 to
By arranging the contact points of the curling roller at a position of 0.5) × L, the tension applied to the adhesive tape stabilizes the curling of the end portion of the adhesive tape in the folding direction and the formation of the folded portion of the adhesive tape. Adhesive tape cutter characterized by what you can do. 2. The free end surface of the sloping roller and the end surface of the support flange of the moving positioning means in the horizontal direction so that the folding width W2 of the adhesive tape of the moving positioning means is formed to be W2 = 1.5 to 25 mm. The adhesive tape cutter according to claim 1, wherein the distance is W2. 3. The bending angle θ of the end portion of the adhesive tape at the contact contact 6a of the habit forming roller is formed to be 45 ° ± 30 °, and then the multistage inclined guide piece is provided on the discharge side of the habit forming roller. The first stage of the roller is spaced apart from the curling roller, and the bending angle θ in the discharge side cross section is 75 degrees ± by the first stage.
It is formed at 30 degrees, and then the bending angle is gradually increased in steps of 30 degrees ± 20 degrees from the second step to the final step of the multi-step inclined guide piece, and the final angle θ = 180 degrees. The adhesive tape cutter according to claim 1, wherein the adhesive tape cutter is bent as follows. 4. The adhesive tape cutter according to claim 1, wherein the unwinding support means is composed of at least two or more support rollers which rotatably support the adhesive tape between them. 5. The inner diameter on the fixed side of the roller of the positioning means, or the tapered roller in which at least one of the supporting rollers is rotatably supported, or the roller fitted to the fixed shaft is larger than the outer diameter of the fixed shaft. Slightly larger,
The inner diameter of the tip side is an inclined roller formed to be larger than the inner diameter of the fixed side and inclined with respect to the fixed shaft,
The taper roller or the tilt roller has an action of moving the tape to the roller tip end portion by the tension of the tape, and has a positioning flange on the tip end side of the taper roller or the tilt roller. Adhesive tape cutter 6. A movable lid provided rotatably or movably with respect to a main body base, and comprising a member arranged on the non-adhesive surface side of an adhesive tape among the positioning means, the multi-stage inclined guide piece and the pressing means. The upper member is attached,
The adhesive tape cutter according to any one of claims 1 to 5, wherein when the movable lid is opened, the upper member is moved to be in a use state in which it is not folded back and a new setting of the adhesive tape is facilitated. 7. The adhesive tape cutter according to claim 1, further comprising finger cutting prevention means on the discharge side of the cutter. 8. The pressure-sensitive adhesive tape cutter according to claim 1, wherein a folding mechanism is provided on both sides of the pressure-sensitive adhesive tape to form the folded-back portions on both sides of the pressure-sensitive adhesive tape.