JP2024068025A - Tape cutter to create tabs - Google Patents

Abstract

[Problem] To provide a tape cutter that can reliably create tabs, select the length of the tabs, and can also be operated without tabs. [Solution] A movable plate with a cutting blade 9 on the top is pressed against a support plate with a support portion 6 on the top, and a support spring 10 has a restoring force, and its tip 11 is located 1 mm higher than the height of the support portion 6 and the cutting blade 9, which are the same height, and 4 to 5 mm away from the cutting blade 9 from the center inside the movable plate, and the support spring 10 supports the tape stuck to the support portion 6 and the top of the cutting blade 9 from below, and when the movable plate is pressed against it, a tab 20 is created above the support portion 6 and the cutting blade 9, and when the tab 20 is peeled off, the movable plate returns to a stopper 13 by the spring force of the support spring 10, and the stopper 13 is U-shaped and has a width that does not interfere with the movement of the movable plate, and the left and right sides of the U-shape are the same length, and is inserted into two stopper receivers 14 provided in the center inside the support plate, and has a sliding function. [Selected Figure] Figure 1

Description

Detailed Description of the Invention

This relates to a tape cutter that reliably creates a tab (non-adhesive surface) at one end of an adhesive tape having an adhesive applied on one side by bonding the adhesive surfaces together.

Hereinafter, the direction in which the tape is pulled out by rotation will be referred to as the outside, and the opposite direction will be referred to as the inside. Also, the area where the pulled out tape is temporarily adhered will be referred to as the support portion.

As can be seen in Reference 1, most inventions for tape cutters that create tabs involve a support plate with a support part at the top, and a movable plate with a cutting blade at the top and a push-up plate on the inside, which is moved and pressed against the support part to create the tab; however, the probability of creating a tab by this alone is extremely low, and there is a high probability that a loop of tape will form below the support part and cutting blade when pressed; it is necessary to ensure that the tarp loop is formed above.

As can be seen in reference 2, a leaf spring 8 is provided between the push-up plate on the inside of the cutting blade and the positioning jaw 3, and a tape bridge 10 is provided above the leaf spring 8, with a tip 13 at its top to support the tape upwards. However, when pressed, the tape bridge 10 extends upward and protrudes significantly between the positioning jaw 3 and the push-up plate, so when picking up and peeling off the tab, it sticks to three places, making it extremely difficult to pick up and peel it off. Also, the tape is pulled out in a straight line from the center of the ring-shaped tape as the adhesive surface peels off, but in the drawing in reference 2, it is drawn as if it is being pulled out from above, off-center, which lacks accuracy. The tip 13 of the tape bridge 10 is drawn to protrude above the base plate 2 and movable plate 7, or is drawn at the same height, so the drawing does not convey accuracy.

As can be seen in Reference 3, a push pin 1 is provided between the fixed support cup 4 and the movable support cup 5 to support the stuck adhesive tape B from below upwards, and after the movable support cup 5 is pressed against it, the push pin 1 immediately drops downwards so as to create a tab reliably without getting in the way; however, the structure is complex and the manufacturing costs are high, so it cannot be provided cheaply. Also, because the movable support cup 4 is provided inside the cutting blade D, the tape sticks to two places, making it difficult to peel it off.

When tape with adhesive coated on one side is pulled out, the adhesive peels off as it is pulled out in a straight line from the axis of rotation (centre point) of the ring-shaped tape. However, in many drawings the tape is not pulled out in a straight line from the axis of rotation, but rather from a position far away from the axis, and many of the drawings are incorrect in principle.

Another common type is one that is equipped with a push-up plate, but the push-up plate does not move upwards; it simply adheres to both the support part and the push-up plate, so there is no certainty that a tab will be created, and even if a tab is created, it is extremely difficult to peel off the tab that has formed above as it is attached to both, and so a tape cutter must be used to peel it off.

There were no tape cutters available that would make tabs with the ability to set the width of the tab you wanted (length from inside to outside) and create the tab.

Reference 1

Patent Publication 2002-145511

Reference 2

Patent Publication 2006-206315

Reference 3

Patent Publication 2012-148825

Problem to be solved by the invention

After the tape is cut with the saw-like cutting blade, the tape remains attached to the saw-like cutting blade. Therefore, something must be invented between the support part and the cutting blade that will reliably create a loop of tape upward when the tape stuck between the support part and the two cutting blades is moved.

The ring formed above the support and cutting blade is made into a cutter that can be easily peeled off by pinching it.

If the tabs are long, they can get in the way and waste tape, so we wanted to eliminate tape waste.

In order to make the tabs reliably, the positions and dimensions of the symbols, the shapes and the dimensions of the shapes are required, and it is important to indicate these in the present invention.

The product must be able to reliably create tabs, be easy to operate without tabs, and be inexpensive and widely used.

Means for solving the problem

The support spring 10, which lifts the tape 1 stuck to the spaced-apart support parts 6 and cutting blade 9, by just 1 mm, is positioned 1 mm higher than the support parts 6 and cutting blade 9, which are at the same height, and is positioned 4 to 5 mm away from the center of the inside of the cutting blade 9. The steel material of the support spring 10 is 0.1 mm thick and has a restoring force (spring), supporting the tape 1 above from directly below upward. The shape of the support spring 10 is such that the lower part 5 to 7 mm from the tip 11 is bent 155° outward, and the lower part 10 to 12 mm from there is bent 155° inward, with the length from the bent position to the lower part being 20 to 30 mm, and the outer surface of the 20 to 30 mm part and the inner surface of the movable plate 8 are attached and secured using double-sided adhesive tape 18.

The tip 11 of the support spring 10 is curved, and a small point on the adhesive surface at the top of the curve lifts the tape 1 upward like a mountain. The moment the movable plate 8 is pressed and moved with one finger (index finger), the tape that has separated from the tip 11 of the support spring 10 bulges upward. When the cutting blade 9 is then pressed against the support part 6, the tape definitely becomes a long, thin ring above the two. When the long, thin ring is pinched with the finger and thumb that pressed against it, a tab 20 is created. When the movable plate 8 is then peeled off from the support part 6 and cutting blade 9 to which it is attached, the movable plate 8, which is connected to the hinge axis 12 located slightly inside the outer end of the support part 6, is instantly returned to the stopper 13 with the force of the support spring 10 added to it.

By providing the support spring 10 at a position 5 mm away from the cutting blade 9, the opening interval between the cutting blade 9 and the support part 6 can be set to 8 mm to create a tab 20 with a width of 4 mm, and the opening interval can be set to 30 mm to create a tab 20 with a width of up to 15 mm. If the tab 20 to be created is too long, it becomes a hindrance and the tape 1 is wasted, so this tape cutter can solve these problems.

The stoppers 13 that stop the movable plate 8 are made of round bar-shaped steel material in a U-shape, and are given a sliding function by being inserted and attached to stopper receivers 14 provided on the left and right sides of the center inside of the support plate 5. The width of the U-shaped stoppers 13 from left to right is set so as not to interfere with the movement of the movable plate 8, and the length from left to right is set to 40 mm to 50 mm.

The stopper 13 capable of sliding can set the opening width between the support part 6 and the cutting blade 9 to a maximum of 30 mm. It can be set wider than that, but the tape 1 will sag downward and it will no longer be possible to create the tab 20.

In the present invention, the following are clearly specified: the height from the bottom plate 17 to the rotary bearing 3 provided on the tape base 2, the distance from the center of the rotary shaft rod 4 installed in the rotary bearing to the support plate 5, the shape and dimensions of the support portion 6 provided on the upper part of the support plate 5, the dimensions from the bottom plate 17 to the support portion 6, the dimensions from the movable plate 8 having a cutting blade 9 on the upper part to the hinge shaft 12, the shape and dimensions of the support spring 10, the shape and dimensions of the stopper 13, and the position and dimensions of the stopper receiver 14.

Conventional tapes without tabs can be cut without much difference, and the assembly method is a method of laminating and assembling using a double-sided adhesive tape 18, which aims to pack compactly and reduce distribution costs of the product, but the installation method is not limited thereto.

If the height from bottom plate 17 to the rotary bearing 3, the spacing (distance) from the rotary bearing 3 to the support plate 5, the height from bottom plate 17 to the support portion 6 at the top of the support plate 5, the shape and dimensions of the support portion 6, the length to the cutting blade 9 at the top of the movable plate 8, the position of the hinge shaft 12, the mounting position and shape of the support spring 10, the shape and dimensions of the stopper 13, and the position and shape of the stopper receiver 14 are the same as those of the present invention, it can also be made into a tape cutter as shown in the embodiment of Figure 9.

Effect of the invention

To provide a tape cutter which can reliably make tabs and can select and set the width of the tab to be made (from inside to outside), thereby reducing the waste of tape and also cutting conventional tapes without tabs without any major problems, thus making it a convenient tape cutter which can be used in two easy ways and is a product which can be provided inexpensively without incurring manufacturing costs.

FIG. 2 is a side view of the tab-making tape cutter of the present invention. FIG. 2 is a perspective view of a tape cutter of the tab creating portion of the present invention. FIG. 3 is an exploded perspective view of the tape cutter of the tab creating portion of FIG. 2 of the present invention; FIG. 13 is a diagram showing the tab creation order of the present invention, from a to e. FIG. 1A is a side view showing how a long tab is made by widening the gap between the adhesive portion and the cutting blade, and FIG. 1B is a side view showing how a short tab is made by narrowing the gap between the adhesive portion and the cutting blade. FIG. FIG. 6B is an enlarged front view of FIG. 6A according to the present invention; FIG. FIG. 1 is a side view showing an embodiment of the present invention.

REFERENCE SIGNS LIST 1 Tape 11 Tip 21 Rotary reel 2 Tape base 12 Hinge shaft 3 Rotary bearing 13 Stopper 4 Rotary shaft rod 14 Stopper receiver 5 Support plate 15 Screw 6 Support portion 16 Receiving base plate 7 Acute angle 17 Bottom plate 8 Movable plate 18 Double-sided adhesive tape 9 Cutting blade 19 Tape base of embodiment 10 Support spring 20 Tab

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, in the tab making tape cutter of the present invention, the center of a rotating shaft 4 placed on a rotating bearing 3 provided above a tape base 2 is positioned 55 to 60 mm from a bottom plate 17, and the rotating shaft 4 of a rotating reel 21 mounted on a ring-shaped tape 1 with an adhesive applied on one side is set in the rotating bearing 3, causing the tape 1 to rotate and be pulled out. The tape 1 that is pulled out is pulled out in a straight line around the rotating shaft 4, because the tape 1 is peeled off from the adhesive as it is pulled out. The support part 6 that holds the pulled-out tape 1 in place must be located higher than the position of the rotating shaft 4; if the support part 6 is located at the same height or lower than the rotating shaft 4, the tape will not adhere firmly.

As shown in FIG. 1, the bottom plate 17 is 150 mm long, 50 mm wide and 5 mm thick (not limited to this), the support plate 5 with the support part 6 at the top is vertically arranged at a position 85 mm to 90 mm outwardly from the center point of the rotating shaft 4 and at a height of 85 mm to 95 mm from the bottom plate 17, the support part 6 at the top of the support plate 5 is 3 mm to 5 mm wide (from inside to outside), the support part 6 is arranged in an oblique shape with the outer end 2 degrees higher than the inner end, and the corner of the outer end of the support part 6 is arranged at an acute angle 7, the movable plate 8 with a saw-shaped cutting blade 9 at the top is connected to the hinge shaft 12 at the bottom and the hinge shaft 12 at the center of the outside of the support plate 5, allowing the movable plate 8 to move, the length from the hinge shaft at the bottom of the movable plate 8 to the cutting blade 9 at the top is 50 mm (not limited to this), and the cutting blade 9 is connected to the support part 6. A hinge shaft 12 must be provided in the center of the outside of the support plate 5 so that when the blade 9 is pressed against it, the upper parts of both pressed parts are at the same height. The position of the hinge shaft 12 is provided 2 to 3 mm inward from the outer end of the upper part of the support part 6. When the cutting blade 9 presses against the support part 6, the upper part of the cutting blade 9 tilts outward by 2 to 3 degrees, which is added to the restoring force of the support spring 10, and after the tape is picked up and peeled off, the movable plate 8 instantly returns to the stopper 13. By making them at the same height when pressed against each other, the ring that becomes the tab 20 can be reliably placed at the top, and it can be positioned in an easy-to-pick-up position using the finger and thumb that pressed against it. Also, the width of the support part is set to 3 to 5 mm, which makes it possible to smoothly pick up and peel off the tape. In this invention, the width of each plate is set to 30 mm and the length of the movable plate 8 is set to 50 mm, but this is not limited to this.

FIG. 8 shows a side view of the support spring 10. It is made of steel material that is 0.1 to 0.3 mm thick and has a restoring force (spring), and is 5 to 7 mm thin from the tip, bending 155° outward, and then 10 to 12 mm below that bends 155° inward, with the support spring 10 being 20 to 30 mm from the bent point to the bottom, and the support spring 10 is located 4 to 5 mm away from the center of the inside of the movable plate 8, and its tip 11 is located 1 mm higher than the top of the cutting blade 9. The tip 11 of the support spring 10 is curved, and the topmost point of the curved shape above the tip 11 supports the tape 1 upward, and the moment the movable plate 8 starts to move, the tape 1 bulges upward away from the point, and when the cutting blade 9 presses against the support part 6, a loop of tape 1 is created 100% upward.

As can be seen in the exploded perspective view of Figure 3, the width of the U-shaped stopper 13 from left to right is set to 32 mm or more so as not to interfere with the movement of the movable plate 8, and the length of the U-shape is set to the same length of 45 mm to 50 mm on both sides. It is attached to the stopper receiver 14 and has the function of being able to slide, so the length of the tab 20 to be created can be selected and set.

The stopper 13 is provided at a position 20 to 25 mm above the hinge shaft 12 on the outer side of the movable plate 8, and the stopper receiver 14 is provided to match the stopping position.

FIG. 4 shows the process of creating the tab 20 in the order of a to e. FIG. 4b shows that the tape 1 bulges upward the moment movement begins, and represents the effect of the support spring 10 of the present invention.

5A and 5B show the state where the stopper 13 is slid to form a long tab 20 and a short tab 20, respectively.

FIG. 7 is an enlarged front view of A in FIG. 6, showing the curved tip 11 that extends upward in a thin arc. The tip 11 supports the tape 1 upward at its upper point, thereby preventing the tape 1 from sticking to the support spring 10.

FIG. 8 is a side view of the support spring 10. The shape of the figure has the effect of pressing the tab 20 against the support portion 6, picking it up and peeling it off, and then returning it to the stopper by the force of the spring (restoring force).

FIG. 9 shows another embodiment, and indicates that it is possible to produce the same type of device as in FIG. 9 if the positions (dimensions) and shapes of the respective symbols are the same.

Double-sided adhesive 18 tape is used for each of the above attachment and assembly points: tape base 2 and bottom plate 17, support plate 5 and bottom plate 17, support plate 5 and receiving plate 16, receiving plate 16 and stopper receiver 14, movable plate 8 and support spring 10. The purpose is to make it possible to fit it into a compact package and to make it easy to distribute as a product, but this is not limited to this and other assembly and attachment methods can be used.

As part of a simple structure consisting of a support plate 5 with a support portion 6 on top and a movable plate 8 with a cutting blade 9 on top, joined by a hinge shaft 12, a support spring 10 is provided inside the movable plate 8, allowing 100% creation of tabs 20, and the stopper 13 with a sliding function has the effect of eliminating waste of tape 1, as the desired position can be determined and the length of the tab 20 to be created can be selected by fixing it with a screw 15.As described above, this is a tape cutter that creates tabs 20 and is provided with both a support spring 10 and a stopper 13.

Claims (2)

The rotary shaft rod 4 arranged in the rotary bearing 3 is provided at a height of 55 mm to 60 mm from the bottom plate 17, a support plate 5 is provided at a position 85 mm to 90 mm away from the rotary shaft rod 4 on the outside, a support part 6 is provided on the upper part thereof, the height from the bottom plate 17 to the support part 6 is set to 85 mm to 95 mm, the width of the support part 6 (from the inside to the outside) is set to 3 mm to 5 mm, the plane of the support part 6 is set at an angle of 2° higher on the outside, and the support part 6 has an outer end at an acute angle 7, a hinge shaft 12 is provided on the outer center part of the support plate 5, and is connected to the hinge shaft 12 at the lower part of the movable plate 8 to make it movable, a saw-shaped cutting blade 9 is provided on the upper part of the movable plate 8, and its length is set from the hinge shaft 12 to the upper part of the cutting blade 9 The support spring 10 for a tape cutter that creates tabs 1 is characterized in that the tip 11 is attached to the inside of the movable plate 8, 1 mm higher than the top of the cutting blade 9, and the hinge axis 12 is located at the outer center of the support plate 5 at a position where it is at the same height as the cutting blade 9 when pressed against the support portion 6. The support spring 10 attached to the tape cutter having the above-mentioned configuration and construction is narrow in shape, 5 mm to 7 mm down from the tip 11, bent 155 degrees on the outside, and bent 10 mm to 12 mm downward further 155 degrees inward, with the bent lower part being 20 mm to 30 mm long. The support spring 10 for a tape cutter that creates tabs 1 is characterized in that the tip 11 is attached to the inside of the movable plate 8, 4 mm to 5 mm inward from the center of the inside of the movable plate 8, 1 mm higher than the top of the cutting blade 9. The stopper 13 that receives the outer center of the movable plate 8 is U-shaped with a width that does not interfere with the movement of the movable plate 8, a left-right length of 45 to 50 mm, and is attached through a stopper receiver 14 provided in the inner center of the support plate 5. The stopper 13 has a sliding function and is capable of stopping the movable plate 8 at a desired position. This is the stopper 13 for the tape cutter that creates tabs 1.

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