JP6850318B2 - Tape cutter - Google Patents

Description

The present invention relates to a type of tape cutter that is directly attached to an adhesive tape winding body.

A simple tape cutter that is directly attached to the adhesive tape winding body is required to be small, lightweight, and inexpensive. However, compared to a desktop stationary tape cutter (tape dispenser), there was a problem in terms of ease of use, such as the difficulty of pulling out the end of the tape.

Various inventions and ingenuity have been made so far, but those that sacrifice ease of use by giving priority to being inexpensive and compact, and those that have only slightly improved operability compared to conventional products. Many of them were not easy to use. In addition, many tape cutters that realize functions with a simple structure have been proposed, but none are widely used.

Japanese Patent No. 6230099 Japanese Unexamined Patent Publication No. 2001-072315 Utility Model Registration No. 3028542 Design Registration No. 1614118 Gazette

Comes with tape cutter, TAKKA, https://www.wemake.jp/concepts/15 tapeWORM, Paule Stdio, http://paulstudio.in/work/tapeworm STRIP tape dispenser, http://www.betterlivingthroughdesign.com/accessories/strip-tape-dispenser/

The problem to be solved is to achieve both low price and ease of use, and to provide a tape cutter that can be manufactured at low cost due to its simple structure and at the same time is easy to use.

A tape cutter provided with a linear cut side, two through holes, a cutout groove, and a pressing plate on an elastically deformable thin plate so that when the tape winding body is regarded as a ring, it becomes a string protruding from the outer circumference of the circle. Wear it together. Rotate the tape winding body in the opposite direction to lift off the end of the tape, press the pulled out tape against the cut side, and cut it so as to twist it vigorously.

The tape can be easily peeled off from the holding part without touching the tip of the tape. The tip of the tape has enough area to be pinched by fingers and is easy to pull out. Structurally, the main body plate is locked, and there is no sticking due to rewinding.

Since the area of the tape end holding portion is large and the adhesive strength is strong, the tape cutter does not rotate and peel off by itself even when it is carried in a bag or the like.

The area where the adhesive surface of the tape is in contact with air is small, and there is little deterioration in adhesive strength due to humidity, dust, etc. This is a feature not found in a stationary tape cutter that exposes a large amount of adhesive surface to make it easier to pick the tape.

Even if the use of tape progresses and the outer diameter of the tape winding body becomes smaller, the tongue-shaped pressing portion pushes forward and always maintains a stable position. Since the tape winding body is in line contact between the central side of the rear hole and the leaf spring of the pressing portion, there is little friction, and the holding force itself is weak, so no force is required to pull out the tape.

It has an extremely simple structure that only punches a thin plate and can be manufactured at low cost. The punching die is extremely cheaper than the plastic molding die, and the punching processing cost is also cheaper than the injection molding processing cost. Plastic molded products can be produced inexpensively if they are mass-produced, but they are not suitable for small-lot, high-mix production. Therefore, the product of the present invention, which is only punched, can easily handle a wide variety of adhesive tapes having different tape widths, core diameters, and winding thicknesses.

It is a figure explaining a basic structure and a principle. (Example 1) It is explanatory drawing which showed the practical embodiment. (Example 2) It is explanatory drawing which showed the embodiment which provided the pressing holding plate part. (Example 3) It is a figure explaining the example of the cutout groove of a basic structure. It is a figure explaining the method of peeling off a tape end. It is a figure explaining an example of the dimensional design method. It is a figure explaining the method of placing it vertically as it is, and the method of placing it vertically in a curved and deformed form. It is explanatory drawing which is attached to the tape body of a large core diameter, and is used. This is a design example showing that various external designs are possible. (Example 4) It is a perspective view of Example 2. FIG.

The basic structure and principle of the tape cutter of the present invention will be described with reference to FIG.

The basic structure of the tape cutter of the present invention is a rectangular thin plate made of a material that can be elastically deformed. The short and long sides of this rectangle are larger than the tape width and the diameter of the winding body, and the tape winding body is a ring. When deemed to be, as shown in the side view 103 of the mounted state, the thin plates are combined so as to be strings protruding outside the circle. For this reason, rectangular through holes are provided at two locations at the intersections with the tape winding body. This basic structure is shown in the plan view 101 of the intermediate form.

The cross-sectional view of the tape winding body is shown in the cross-sectional view 107 of the D line passing through the center of the annulus and the cross-sectional view 106 of the C line slightly deviated from the center. The vertical side length of the rectangular through hole may be slightly larger than the tape width, but the horizontal side length of the intersection becomes larger as it deviates from the center of the circle, so that the horizontal side length is sufficiently larger than the thickness width of the tape winding body. Need to be taken.

In principle, a thin plate having only two rectangular holes of this basic structure cannot be combined with a tape winding body. Therefore, the tape cutter of the present invention is provided with a cutout groove 3 for connecting the two holes. ing. The simplest method is to connect the central portions in a straight line as shown in the plan view 102. The thin plate of the main body can be elastically deformed, and can be mounted by twisting and widening the cutout groove 3 so that the plan view 105 of the tape winding body can pass through.

FIG. 4 shows an example of the shape of the cutout groove in which a moderately flexible and deformable thin plate is aligned with the annulus. The cutout groove may be displaced to the left or right without being on the central axis as in 401, or may be winding as shown in 402. Furthermore, there is also a shape such as 403 that is indirectly connected via the outer edge space. In addition, various combinations of the positions and shapes of the cutout grooves are possible.

In the plan view 102 of FIG. 1, the side from which the tape is pulled out is referred to as the front, and the side opposite to the tape is referred to as the rear. There is no special structure between the outer side and the outer edge of the front rectangular hole 1, but since the tip 8 of the tape is adhered and held here, it is referred to as a tape end holding portion 6. Similarly, the front outer edge is also simply straight and does not have a special structure, but since the tape is pressed against this edge to be torn, this is referred to as the tape cutting edge 5.

The tape cutter is held in a form of being fitted to the tape winding body, and is adhered to the tape end holding portion 6 and temporarily fixed, so that the rotation of the tape winding body is suppressed. This basic form also has a function as a tape cutter, but since the lateral sides of the two rectangular through holes are wide enough, it swings in the vertical direction with the drawing point from the tape winding as a fulcrum. It has an unstable structure and has the disadvantage that it is difficult to pass a finger through the hole in the ring when holding it in the hand. In order to solve this problem, the tape cutter of the present invention is provided with a tongue-shaped pressing plate portion 4 protruding inward from the outer side of the rear rectangular hole 2. As shown in the side view 103 in the mounted state, the pressing plate portion 4 acts as a leaf spring to push the surface of the tape winding body from the rear side and sandwich the tape winding body between the inner side of the rear rectangular hole 2. It has become. As a result, the main body plate is stably held on the tape winding body, and the ease of use is greatly improved.

Next, a method of mounting and a method of using the tape cutter of the present invention will be described.

As a mounting method, there is a method of forcibly twisting and splitting the cutout groove of the tape cutter with both hands to fit it. However, the tape winding needs to be upright and fixed, which is not a very smart method. It is easy and convenient to hold the center of the tape cutter body with one hand from the left and right with your thumb and forefinger, hold the tape roll with the other hand, and press it strongly from above to autonomously deform and fit it. .. On the contrary, it can be removed by autonomously deforming it by pulling it up.

How to use will be explained in the order of how to hold, how to peel off, and how to cut.

Here, the standard way of holding a right-handed person is explained. Left-handed people can read by swapping left and right. With the thumb of the handle (left hand) facing up and the palm side facing up, the tape cutter body plate should be placed with the tape drawer end facing up, and the middle finger (and ring finger if possible) should be inside the ring of the tape winding body. The thumb holds the outer frame of the plate from above, and the other fingers hold the main plate from below outside the annulus.

Hold the top and bottom of the tape roll with the tape puller (right hand) and turn it slightly in the direction opposite to the direction in which the tape is pulled out. As shown in FIGS. 501 to 504, the tape adhered to the tape holding portion. Is peeled off from the root side near the winding body. It is a major feature of this tape cutter that it can be peeled off from the holding portion without touching the tip of the tape in this way.

In addition to this method, there is also a method in which the tape winding body is fixed and the outer frame of the tape holding portion is pushed downward with the thumb on the handle side to peel off the tape. Both seem to be the same operation only by the difference between fixing the tape winding body and the tape cutter, but the latter is also considered to be another method because it is peeled off from the left side with the thumb.

There is another interesting peeling method that is not practical. Release the thumb and index finger on the handle (left hand) side from the main body plate, and push the rear end of the main body plate forward with the thumb of the left hand. Then, the front of the main body plate is greatly curved and deformed, and is peeled off from the root side of the tape end.

Pinch the tip of the tape with the thumb and index finger of the right hand, pull it out by the required length, and attach the base of the tape end to the holding portion 6 with the thumb on the handle side. In particular, careful adhesion of the cut side is the key to clean cutting. Next, the end of the pulled out tape is pressed against the cutting side 5 and twisted so as to be pushed down vigorously from the left end to the right end of the tape (from the outside to the inside in the direction of hand movement).

The embodiment of FIG. 2 has been improved to further enhance its practicality.

As shown in the plan view 201, the outer side of the front rectangular hole is bent downward as a crease (dotted line in the figure) to form a through hole, which is enlarged until the tongue-shaped pressing plate portion of the rear rectangular hole covers the entire surface of the hole. It is in the form of a rectangle. The bent plate of the portion corresponding to the front rectangular hole serves as an auxiliary plate (front support auxiliary plate portion 9) for supporting from below with the index finger on the handle side. Without this auxiliary plate, when the tape winding body is pulled out, the index finger and the surface of the tape winding body come into contact with each other, and this frictional force becomes a load, making it difficult to pull out. With this auxiliary plate, there is no direct contact with the finger and it can be pulled out smoothly.

In FIG. 1, the thin plate of the main body was drawn linearly in order to explain the basic structure and principle, but as shown in the side view 205 and the rear view 206, the realistic structure when attached to the tape winding body is The shape is such that the rear part is slightly curved downward due to stress deformation due to the pressing of the leaf spring.

Further, when the remaining amount of the tape becomes low, the thickness of the tape winding body becomes thin, and as shown in the side view 207 and the rear view FIG. In this case, the gap between the front rectangular holes becomes wider and the exposed area of the adhesive surface at the base of the tape end increases, but the presence of the front support auxiliary plate can prevent the finger from touching the widened exposed surface. ..

By improving the effective use of thin plates of such materials without waste, there is also a secondary effect of not producing punched pieces that become dust in the manufacturing process.

An example of the design method of this embodiment will be described.

As the material, various plastic materials that can be easily peeled off even if the tape is adhered are suitable. Silicone and rubber-based materials are generally not suitable because the adhesive strength of the tape is weak, but they may be more suitable for tapes with a wide tape width and strong adhesive strength. Also, a metal plate can be used if it can be thinned and deformed. Furthermore, there may be a choice of thick paper surface-coated with a PP (polypropylene) film. The adhesive strength can also be adjusted by applying surface processing or embossing such as matte (matte) or gloss (clear) to the member.

FIG. 7 shows an explanatory diagram of the dimensional design. The vertical length of the hole is determined by the target tape width w. If the play amount of several millimeters is Δw, the vertically long rectangles of the front hole and the rear hole are w + Δw. The length c of the holding portion at the tip is set to be slightly larger than the width of the index finger. The length a of the front hole takes a value obtained by multiplying the thickness Δr of the tape winding body by a constant coefficient. This coefficient is usually in the range of 1.2 to 1.5 unless the thickness is extremely large compared to the inner diameter of the core. The lateral length of the rear hole is also the length s of the tongue-shaped pressing plate portion, and should be larger than the length a of the front hole in order to reduce the pressing of the leaf spring. It is an absolute requirement that the length b of the intermediate portion between the front hole and the rear hole be smaller than the inner diameter Di of the core, but there is a minimum length necessary for ensuring structural strength. As a guideline for design, the inner diameter is 1/2 to 2/3. The horizontal frame width e and the rear frame width f are designed to have appropriate values so as to have both structural strength and flexibility that can be attached and deformed together with the thickness t.

If Li = a + b + s is designed to be larger than the outer diameter of the tape winding body, it can be moved downward beyond the center of the circle to be greatly curved. In this form, the exposed area of the adhesive surface at the base of the tape end can be minimized, and the tape is protected from dust and humidity in the air.

FIG. 7 shows a method of standing the tape cutter. Normally, if you stand it upright like 702, you can insert the handle from the side and pick it up, which is convenient. However, in this placement, the surface of the tape roll is attached to the floor, so if the drink overflows, the liquid will permeate and stain it. Since the surface of the tape winding body is separated from the floor by bending and deforming it as in 703, such troubles can be avoided. That is, when it is used frequently, the standing position of 702 is suitable, and when it is not used for a long period of time, the curved deformation setting of 703 is suitable.

Commercially available tapes have different core diameters or different thicknesses depending on the tape winding length even if the tape width is the same. By making the hole lengths a and s large and the intermediate length b small, it is possible to handle a wide range of different core diameters and thicknesses.

FIG. 8 is a diagram in which the tape windings are mounted on tape winding bodies having a core diameter three times different, ignoring the dimensional design. Although the length b of the intermediate portion is insufficient, it is a thin plate that can be elastically deformed, so that it can be mounted by being curved in a loose S shape like 801. Although it can be used in this state, by bending the outer frame at each part as in 802, the holding force between the pressing plate and the rear hole can be weakened and the tape can be pulled out smoothly.

In the embodiment of FIG. 3, a pressing holding plate is provided so that the tape can be cut more reliably.

The pressing holding plate is used by sandwiching the tape attached to the tape end holding portion from above and pressing it, and tearing the tape upward with one side of the holding plate as the cutting side. The holding plate can be integrated as a pressing holding plate portion 10 connected to the main body by the connecting portion 11 without being separated as a separate member. For example, the plan view 301 shows the holding plate arranged laterally in front of the main body, and the plan view 304 shows the holding plate arranged behind the main body. In the horizontal arrangement type, as shown in the side view 303 and the front view 302, the connecting portion is bent and the tape is pressed and sandwiched. In the rear arrangement type, as shown in the side view 306 and the front view 305, the connecting portion 11 is gently curved to bring the holding plate 10 forward and press the tape.

The tape cutting method is a pull-up tearing method, unlike the pressing-pulling tearing method of the second embodiment. That is, the thumb on the handle side strongly presses the holding plate from above to pinch the tape, pulls up the end of the tape picked by the other hand, and vigorously twists and tears it from the left side to the right side of the tape.

The width of the holding plate may be about the same as the width of the main body plate, but the length may be longer than the length of the tape end holding portion and the dimensions may be designed so as to slightly hang on the curved surface of the tape winding body. The pressing force is concentrated on the cutting edge and the tape can be securely pinched, improving the stability of tearing.

This embodiment shows two arrangement examples in which the material plate can be effectively used without waste and is easy to press and hold with one hand, and various other arrangements of the holding plate and the shape of the connecting portion can be considered. .. The structure is asymmetrical, but if you are a left-handed person holding the main body with your right hand, you can use it by inverting the front and back of the main body.

In the explanation of the basic structure and principle, the outer shape is explained as a rectangle, but it is sufficient if it has a linear cutting edge longer than the tape width, and the outer shape can be shaped relatively freely unless the width is too long and it is not difficult to hold. Can be designed. FIG. 9 shows some specific examples.

In 901, the corners of the rectangle are rounded, and a round hole for a carrying string is provided at the rear end. Since the tape cutter of the present invention also functions as a tape holder, it is convenient to attach a reel-type strap and carry it in work where the tape is frequently used.

902 is provided with a hook shape for hanging at the rear. Product information can be printed on the main body plate, and tape products can be displayed as hooks for sale. This hook is also convenient to use for hanging storage during storage.

903 is an egg, 904 is a cat, and 905 is a fish motif .

For tapes made of materials that cannot be easily torn by hand, such as cellophane tape and OPP tape, there is a solution in which a folding blade piece of a cutter knife is attached to the cutting edge or the holding plate. By making a slight cut in the left end of the tape with the provided blade, it can be pressed against the cut side and twisted.

It can also be used in combination with a conventional direct mount tape cutter with a serrated blade made of metal or hard plastic. In this case, since the conventional tape cutter having a serrated blade replaces the pressing holding plate, the tape is sandwiched from above and cut so as to be pulled up. For example, the tape cutter of Patent Document 4 has a linear shape and is suitable as a substitute for a pressing holding plate.

Most suitable for use in workplaces where adhesive tape that can be easily torn by hand, such as masking tape used for painting work, surgical tape used by nurses for medical purposes, and curing tape used for moving work, is frequently used.

Since there are few restrictions on the shape of the outer frame, it is highly possible to use it as a stationery to enjoy designing in various colors and shapes. Since it can be used as a simple tape holder, it can also be used as a fashion item to hang masking tape with your favorite color pattern on a bag or backpack.

For applications other than adhesive tape, taking advantage of the functional structure that loosely presses and locks the winding body, it can be used as a hanging holder for roll-shaped ribbons and strings used in sewing work, or as a hanging toilet paper holder or kitchen paper holder. It can also be used for such things.

1 Front rectangular hole 2 Rear rectangular hole 3 Cutout groove 4 Tongue-shaped pressing plate part 5 Tape cutting side 6 Tape end holding part 7 Tape winding body 8 Tape tip part 9 Front support auxiliary plate part 10 Pushing holding plate part 11 Holding plate Connection portion 101 Top view of an intermediate form for explaining two through holes 102 Top view of a single unit of Example 1 103 Side view of a state of being attached to a tape winding body of Example 1 104 Tape winding of Example 1 Rear view of the tape winding body attached to the body 105 Plan view of the tape winding body 106 Cross-sectional view of the tape winding body (C cut surface)
107 Cross-sectional view of tape winding body (D cut surface)
108 Positional relationship of two through holes FIG. 201 Top view of a single unit of Example 2 202 Side view of a single unit of Example 2 203 Back view of a single unit of Example 2 204 Plan view of a single unit of Example 2 mounted on a tape winding body FIG. 205 Side view of the state of being attached to the tape winding body of the second embodiment FIG. 206 Rear view of the state of being attached to the tape winding body of the second embodiment 207 Side view of the state of being attached to the tape winding body of the second embodiment. FIG. 208 Rear view of the tape winding body in which the remaining amount of tape of Example 2 is small 301 Top view of a single unit of the holding plate horizontal arrangement type of Example 3 302 Mounting tape end of the holding plate horizontal arrangement type of Example 3 Front view of the state in which the sandwiching plate is sandwiched 303 Side view of the state in which the mounting tape end of the horizontal arrangement type of the third embodiment is sandwiched 304 The plan view of the rear-arranged type of the sandwiching plate of the third embodiment Front view of the rear-mounted mounting tape end sandwiched in front view 306 Side view of the rear-mounted mounting tape end sandwiched in Example 3 Example of a cutout groove arranged laterally offset from the center 402 Winding Example of a cut-out groove 403 Example of a cut-out groove that indirectly connects two holes 501 Side view of a state in which the root of the tape end is adhered and held 502 Side view of a state in which the root of the tape end is slightly peeled off. 503 Side view with the tape end peeled off to the tip 504 Side view with the tape end completely peeled off and free 601 Side view of the main body with the dimensions of Example 2 602 Dimensions of Example 2 Top view of the completed main body 603 Side view of the tape winding body with the dimensions of Example 2 604 Rear view of the tape winding body with the dimensions of Example 2 701 Side view of the usage state of Example 2 702 Example 2 Side view of the standing state 703 Side view of the standing state of the curved and deformed form of the second embodiment 801 Side view of the second example in the state of being curved and deformed and attached to the large core diameter tape winding body 802 Bending and deforming Side view of Example 2 attached to a large core diameter tape winding body 901 Top view of Example 2 in which the corners of the outer frame rectangle are rounded and a mounting hole for a carrying string is provided 902 The corners of the outer frame rectangle are rounded. Plan view 903 of Example 2 in which the hanging hook shape is provided at the rear Plan view 904 of Example 2 in which the outer frame is oval and a mounting hole for a carrying string is provided Implementation of a shape in which the outer frame is designed like a cat Top view of Example 2 905 Plan view of rear-position type in Example 3 having a fish-like outer frame

Claims (3)

It is a tape cutter that is directly attached to the tape winding body, and is a thin plate-shaped member [plate body] that can elastically deform a closed curve figure that can contain a rectangle whose tape width and outer diameter of the tape winding body are vertically and horizontally long. , in order to篏合so that protruding form outside by extending the strings when regarded tape winding body and annular, rectangular at two positions corresponding to the intersections between annular through hole [front rectangular hole ( 1), rear rectangular hole (2)] is provided, and a cutout groove (3) connecting the two rectangular holes is provided to enable alignment by elastic deformation, and the rear rectangular hole (2) is provided from the outer side to the inner side. A tongue-shaped pressing plate portion (4) protruding in the direction is provided , and a linear cutting side (5) longer than the tape width is provided on the outer edge of the plate body so as to be parallel to the outer side of the front rectangular hole (1). , A tape end holding portion (6) for temporarily fixing the tip of the adhesive tape is provided between the cutting side (5) and the front rectangular hole (1), and a tongue protruding inward from the outer side of the front rectangular hole (1). A front support auxiliary plate portion (9) is provided by bending the shape portion downward opposite to the surface on which the tape end is temporarily fixed to serve as a support auxiliary plate, and the cut side (5) and the front rectangular hole (1) are formed of the plate body. The tape is on the same plane, and the distance is longer than the thickness width of the fingertip. The tape attached to the tape end holding portion (6) by rotating the tape winding body in the direction opposite to the direction in which the tape is pulled out. A tape cutter that can be lifted off from the root side without touching the edges with your fingertips. Front rectangular holes (1) are cut out three sides excluding the one side of the outer rectangle to form through-holes and the front auxiliary supporting plate portion by bending one side of left downward (9) at the same time, the rear rectangular hole ( 2) is the tape cutter according to claim 1, wherein three sides of the rectangle are cut out and the tongue-shaped pressing plate portion (4) occupies the entire through hole. A substantially rectangular thin plate pressing holding plate portion (10) is provided to hold the tape end holding portion (6) to which the tape end is attached and stopped from above, and the tape end is bent out from the outer frame portion of the main body. The tape cutter according to claim 1 or 2, which is a structure connected by a connecting portion (11) capable of bending.

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