JPH0815975B2 - Tape cutting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to tape cutting for cutting an adhesive tape with release paper, which comprises a tape substrate having an adhesive layer and release paper pre-adhered to the adhesive layer. It relates to the device.

[Prior Art] An adhesive tape with release paper is used as a print medium such as a tape printer. What is a tape printer?
After printing desired characters etc. on the release paper tape by type impact, embossing, thermal transfer, etc., the tape sent in the longitudinal direction is cut by a tape cutting device, and the adhesive tape with release paper on the desired length is printed. It is to create a piece. The tape piece thus produced is used by peeling off the release paper to expose the adhesive layer and sticking it to the object.

As a tape cutting device for cutting the adhesive tape with release paper, one that completely cuts the tape including the release paper with one cutting blade perpendicular to the tape feeding direction, and US Pat.
Disclosed in 3310145 specification, a complete cutting blade for completely cutting the adhesive tape with release paper, and a half-cut blade for cutting only the tape substrate are arranged in parallel with the tape feeding direction,
A composite cutting device for forming a half-cut portion on a tape and cutting the tape is known.

[Problems to be Solved by the Invention] However, in the above conventional tape cutting device,
In order for the half-cut blade to cut only the tape substrate,
It is necessary to accurately set the gap between the cutting edge and the pedestal to be smaller than the thickness of the tape substrate. Since the tape base is very thin, high precision is required for the positional accuracy of the half-cut blade with respect to the pedestal, and a structure for adjusting the gap is also required, which complicates the support structure and is expensive. It becomes something. Furthermore, the work of attaching the half-cut blade becomes complicated.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a tape cutting device that can perform a half cut surely with a simple support structure, simplifies the mounting work, and is inexpensive. There is.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cutting blade for an adhesive tape with release paper, which comprises a tape substrate having an adhesive layer and release paper pre-adhered to the adhesive layer. And a pedestal, and a cutting blade is pressed toward the pedestal to cut the pressure-sensitive adhesive tape with release paper, wherein the cutting blade is a linear blade portion and its linear blade portion. And a bending portion formed by being connected to both ends of the blade, the cutting edge thereof is slightly uneven, and the pedestal is made of a metal material.

[Operation] In the tape cutting device configured as described above, in the state where the adhesive tape with release paper is inserted between the cutting blade and the pedestal,
The cutting blade is pressed against the pedestal to cut the adhesive tape with release paper. At this time, the tape substrate is completely cut, but a part of the release paper is left uncut, and as a result, the pressure-sensitive adhesive tape with release paper is half-cut.

[Embodiment] An embodiment in which the present invention is applied to a tape end processing device will be described in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a tape edge processing apparatus, and FIG. 2 is a perspective view of a printing apparatus including the tape edge processing apparatus. As shown in FIG. 2, the end processing device is the printing device 1
Is integrally provided on the upper surface 2a of the housing 2 so that the end 6 of the tape 4 printed by the printing device 1 can be easily processed.

First, the printing device 1 will be briefly described. On the upper surface 2a of the housing 2, a rotatable character selection dial 8 is provided.
Is provided, and the ring-shaped dial surface 10 has alphanumeric
Symbols / codes are displayed. A function key group for performing various controls of the printing apparatus 1 adjacent to the character selection dial 8.
14 is provided, the input character is displayed on the liquid crystal display 16 and is printed on the tape 4, and is sent out from the tape discharge port 18 to the outside of the housing 2. Tape 4 sent out
Is cut into a predetermined length by a cutting mechanism (not shown) behind the printing portion with a predetermined margin generated from the configuration of the printing apparatus 1 and the like, and a predetermined length as shown in FIG. Tape 4 is created.

As shown in FIG. 6, the tape 4 is composed of a tape substrate 4a having an adhesive layer 4b and a release paper 4c attached to the adhesive layer 4b, and the release paper 4c is attached. It is cut into a predetermined length in the state.

Next, the tape end processing device 20 for processing the end 6 of the tape 4 printed and cut as described above will be described. The tape end processing device 20 is the upper surface of the housing 2.
2a, and as shown in FIG. 1, a part of the housing 2 also serves as the main body 21 of the tape end processing device 20. The upper surface 2a is recessed according to the width of the tape 4, and a guide groove 22 that can be inserted with the tape surface 4a of the tape 4 facing upward is formed. Then, as shown in FIG. 1, the guide groove 22
When the tape 4 is inserted, its tip comes into contact with the inside,
A stop surface 24 is provided for restricting further insertion of the tape 4.

In addition, a cutter holder made of polyacetal, nylon, etc. is provided so as to straddle the inserted tape 4 in the guide groove 22.
30 are provided. As shown in FIG. 3, the cutter holder 30 has locking portions 32 (only one is shown) formed on both sides thereof, and a claw 34 (only one is shown) is provided at the tip thereof. . The cutter holder 30 is detachably attached to the main body 21 by engaging the claws 34 with the main body 21.

The cutter holder 30 prevents the tape 4 from floating when the tape 4 is inserted into the guide groove 22,
A tape guide portion 36 is provided for guiding so that the tape can be properly inserted. Further, an elastic portion 38 that extends toward the stop surface 24 substantially parallel to the tape 4 to be inserted and is elastically deformable.
Is formed, and a cover portion 40 having a hollow interior is provided at the tip of the elastic portion 38. Also, this cover part
Two presser feet 42, 44 extend obliquely downward from the tape 40 toward the tape surface 4a, and the presser feet 42, 44 are bent to press the end 6 of the tape 4 into the guide groove 22. Has been done.

A part of the cover 40 is cut out and the tape surface
A holding portion 46 that hangs toward 4a is formed inside the cover portion 40. The holding portion 46 is provided with a pin portion 48 standing upright in a direction parallel to the tape surface 4a. Then, the pin portion 48 is inserted into the engaging hole 52 of the cutting blade 50 so that the cutting blade 50 can swing around the pin portion 48. The diameter of the pin portion 48 is made smaller than the diameter of the engagement hole 52 by a predetermined amount, and the cutting blade 50 is engaged with the pin portion 48 so as to be able to swing back and forth as shown by arrow A in FIG. So that the cutting blade 50 can freely swing right and left and back and forth,
The cutting blade 50 hits the tape surface 4a uniformly and stably. Note that a rib 51 extending toward the cutting blade 50 is formed inside the cover 40 so that the cutting blade 50 does not come off the engagement hole 52.

The cutting blade 50 has a linear blade portion 54 provided along the width direction of the tape 4, as shown in FIGS. 4 and 7. Then, arcuate blade portions 56 and 58 having a radius R are formed on both sides of the linear blade portion 54 so as to be respectively connected to the linear blade portion 54. Further, a linear auxiliary blade portion extended from the arcuate blade portions 56, 58 in the tangential direction of the circle having the radius R and at an angle θ with the linear blade portion 54 being an obtuse angle. 6
0,62 are provided. In this embodiment, this angle θ is 12
Although it is set to 0 degrees, it is suitable to be in the range of 105 degrees to 140 degrees. Further, as shown in FIG. 7, by setting the angle θ to 120 degrees, it can be recognized that the corners are externally rounded when the tape 4 is cut by the arcuate blade portions 56 and 58. If the angle θ is made larger than this, it becomes difficult to recognize that the corners are rounded in appearance.

Further, in this embodiment, the width W of the tape 4 is 12 mm, and the error t of the width W of the tape 4 is ± 0.
It is 5 mm. Therefore, the minimum width L is 11.5 mm,
Corresponding to the minimum width L of the tape 4, in the present embodiment, the linear blade portion 54 and the both arc-shaped blades 58, 60 have the minimum width L.
It is formed so that. That is, even when the tape 4 having the minimum width L is cut, the arc-shaped blade portion 5 is formed at the corner of the tape 4.
At least a roundness of 6,58 is formed. Further, if the widths of the linear blade portion 54 and the arc-shaped blade portions 56, 58 are made smaller than the minimum width L, the amount of cutting by the auxiliary blade portions 60, 62 becomes large, and the straight blade is not rounded. It gives a feeling of being chamfered, and the softness due to the roundness is impaired.

On the other hand, when forming the cutting blade 50, in this embodiment, a linear blade made of SK material having a Shore hardness of about HS60 is bent into an arc of radius R to form the linear blade portion 54 and the arc-shaped blade portion 56. , 58, auxiliary blade 60,6
Forming two. At this time, as shown in FIG. 10, the tips of the respective blade portions are slightly uneven, but wavy. The arcuate blade portions 56, 58 and the auxiliary blade portions 60, 62 constitute the bent portion of the present invention.

As shown in FIGS. 1 and 10, the main body 21 in the guide groove 22 facing the cutting blade 50 has a metal plate 70 made of stainless steel serving as a pedestal via an adhesive layer 71 made of double-sided tape. The tape 4 is cut between the cutting blade 50 and the metal plate 70.

A lever 64 is rotatably supported on the main body 21, and is pulled by a spring 66 in a direction to be stored in the main body 21. Arrow B against the tensile force of the spring 66
By holding the cutter holder 30
Push down 46 to elastically deform elastic part 38 and cut blade 50.
Can be moved toward the tape surface 4a.

Next, the operation of the tape edge processing device of this embodiment will be described.

First, the printing apparatus 1 creates a tape 4 as shown in FIG. Then, in order to process the end portion 6 of the tape 4, the user inserts the tape 4 into the guide groove 22, is guided by the tape guide 36, and bends the presser feet 42, 44 to lift it. Insert the tape 42 until it abuts the stop surface 24. Then, when the lever 64 is swung in the direction of the arrow B against the pulling force of the tension spring 66, the presser feet 42, 44 press the tape 4 and prevent the tape 4 from being displaced, while the holding portion 46 of the cutter holder 30 is prevented. Is pushed down, and the cutting blade 50 is moved toward the tape surface 4a.

By the way, the cutting edge of the cutting blade 50 is slightly uneven during bending. Since the metal plate 70 as the pedestal has a predetermined hardness, when the cutting edge of the cutting blade 50 contacts the metal plate 70, it does not bend along the slight irregularities of the cutting edge of the cutting blade 50. A small gap is formed in a part of the contact portion between the cutting edge of the cutting blade 50 and the metal plate 70. Therefore, as shown in FIG. 6, when the cutting blade 50 cuts the tape 4, the tape base 4a and the adhesive layer 4b are completely cut, but the unevenness causes a part of the release paper 4c to be left uncut. As a result, the tape 4 is half-cut.

By this half cut, when the user holds the tape end portion 6 and bends the tape base body 4a around the cut portion, the tape base body 4a floats from the release paper 4c and is easily peeled off.

During this cutting, the linear blade portion 54 of the cutting blade 50 is
4a is cut in a straight line parallel to the width direction. Further, the arcuate blade portions 56, 58 of the cutting blade 50 are connected to the straight line of the tape base body 4a cut by the linear blade portion 54 to form the arcuate blade portions 56, 58.
Cut into an arc shape with a radius R of. Then, the auxiliary blade portions 60 and 62 of the cutting blade 50 cut in the tangential direction of the arc of radius R and at an obtuse angle θ with the linear cutting by the linear blade portion 54.
As a result, the end portion 6 of the tape substrate 4a is cut so as to give the tape substrate 4a a rounded corner, as shown in FIG. Further, since the corners of the attached tape base body 4a are rounded, it is difficult to peel off the corners.
Further, since the straight line portion is also formed by the straight blade portion 54, when the tape base body 4a is pasted along the edge to which the tape base body 4a is attached, the tape base body 4a can be pasted with the straight line portion as a reference.
It becomes easy to attach 4a.

Further, since the cutting blade 50 is supported so as to be swingable back and forth and left and right around the pin portion 48, and the metal plate 70 as a pedestal is embedded in the main body 21 via the adhesive layer 71, the cutting is performed. Even if the blade 50 has one-sided contact with the metal plate 70, the cutting blade 50 swings so as to correct the one-sided contact and the adhesive material layer 71 bends.
The tape substrate 4a is surely cut.

The present invention is not limited to the above configuration, and various modifications can be made without departing from the spirit of the present invention.

[Advantages of the Invention] As described in detail above, the tape cutting device of the present invention can surely perform half cutting with a simple support structure, and the cutting work of the cutting blade is simple and inexpensive.

[Brief description of drawings]

1 to 10 show an embodiment embodying the present invention, and FIG. 1 is a cross-sectional view of a tape end processing apparatus of the present invention, FIG.
FIG. 3 is a schematic perspective view of a printer provided with a tape end processing device, FIG. 3 is an enlarged perspective view of a cutter holder, FIG. 4 is an enlarged perspective view of a cutting blade, and FIG. 5 is a tape produced by the printer. FIG. 6, FIG. 6 is an enlarged perspective view of the tape whose end is processed by the end processing device, FIG. 7 is an explanatory view of a cutting blade, FIG. 8 is an explanatory view of an arcuate blade portion of the cutting blade, FIG. 9 is an explanatory view of the tape base body cut by the cutting blade, and FIG. 10 is an explanatory view of irregularities formed when the cutting blade is formed. In the figure, 4 is a tape, 4a is a tape substrate, 4b is an adhesive layer, 4c is release paper, 20 is an edge processing device, 50 is a cutting blade, 54 is a linear blade, 56 and 58 are arcuate blades, Reference numerals 60 and 62 are auxiliary blade portions, and 70 is a metal plate.

Claims (1)

[Claims] 1. An adhesive tape with release paper, which comprises a tape substrate having an adhesive layer and release paper pre-adhered to the adhesive layer, is inserted between a cutting blade and a pedestal to receive the cutting blade. In the tape cutting device that presses toward the adhesive tape with release paper, the cutting blade is composed of a linear blade portion and a bent portion that is formed so as to be connected to both ends of the linear blade portion. In addition, the tape cutting device is characterized in that its cutting edge is slightly uneven, and the pedestal is made of a metal material.