JPH0443058A - tape cutting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape cutting device that cuts a tape along its width direction using a cutting blade.

[Prior Art] Conventionally, this type of tape cutting device has a linear cutting blade arranged parallel to the width direction of the tape, and presses the cutting blade toward the tape located between the cutting blade and a pedestal. , cut out a portion of the tape.

When the tape is cut by this tape cutting device, each of the four corners of the end portion is raised, making it easier to peel off.

Therefore, it is known that the tape cutting device uses a non-linear cutting blade, for example, an arcuate cutting blade, and processes the tape end into an arcuate shape to make it difficult to peel off.

[Problems to be Solved by the Invention] However, if the arc-shaped cutting blade is supported at an angle in its longitudinal direction or in its thickness direction, the entire cutting edge will not be pressed against the tape at the same time, and the center of the tape in the width direction will not be pressed against the tape at the same time. Uncut parts are left on the edges or on both sides. For this reason, the cutting blade must be supported by the tape cutting device so that the entire cutting edge is pressed against the tape at the same time, and the support structure thereof is required to have high precision and is expensive.

Moreover, the work of installing the cutting blade becomes complicated.

The present invention has been made to solve the above problems, and provides a tape cutting device that eliminates the need for a highly accurate cutting blade mounting structure, simplifies the cutting blade mounting work, and can cut tape reliably. The purpose is to provide.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a non-linear cutting blade that cuts the tape along its width direction, and a cutting blade that is always spaced at a predetermined distance from the pedestal. In a tape cutting device comprising a holder that is held apart and an actuating member that moves the cutting blade toward a pedestal to cut the tape inserted between the cutting blade and the pedestal, the holder The blade is provided with a support portion that swingably supports the blade in its longitudinal direction and thickness direction.

[Operation] In the tape cutting device of the present invention having the above configuration, the cutting blade is supported so as to be swingable in the longitudinal direction and the thickness direction, so that the cutting blade can cut into the tape with the entire cutting edge in contact with the tape. Press to ensure that the tape is cut.

[Example code] Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 1 is a schematic diagram of a tape end cutting device which is an embodiment of the present invention, and FIG. 2 is a perspective view of a printing device equipped with the end cutting device.

As shown in FIG. 2, in this embodiment, it is provided integrally on the upper surface 2a of the housing 2 of the printing device 1, so that the end portion 6 of the tape 4 printed by the printing device 1 can be easily processed. is being used.

First, to briefly explain this printing device 1, a rotatable character selection dial 8 is provided on the upper surface 2a of the housing 2.
is provided, and alphanumeric characters, symbols, codes, etc. are displayed on the annular dial surface 10. Adjacent to the character selection dial 8, a group of function keys 14 for controlling various types of the printing device 1 is provided, and input characters are displayed on the liquid crystal display 16I; at the same time, they are printed on the tape 4, and are output from the tape ejection port 18. It is sent out to the outside of the housing 2. The fed tape 4 is cut into a predetermined length with a predetermined margin created by the configuration of the printing device 1 behind the printed part by a force/sorting mechanism (not shown), as shown in FIG. A tape 4 of a predetermined length is created.

Next, the end 6 of the tape 4 printed and cut as described above is
The end cutting device 20 for cutting the will be described. The end cutting device 20 is provided on the upper surface 2a of the housing 2, and as shown in FIG. 1, a part of the housing 2 also serves as a main body 21 of the end cutting device 20. The upper surface 2a
is recessed according to the width of the tape 4 to form a guide groove 22 into which the tape 4 can be inserted with the tape surface 4a facing upward. The bottom surface 22a of this guide groove 22 constitutes a pedestal. As shown in FIG. 1, a stop surface 24 is provided in the guide groove 22, with which the leading end of the tape 4 comes into contact when the tape 4 is inserted, thereby restricting further insertion of the tape 4.

Further, a cutter holder 30 made of polyacetal, nylon, etc. is provided in the guide groove 22 so as to straddle the tape 4 inserted along the bottom surface 22a. As shown in FIG. 3, this cutter holder 30 has locking portions 32 (only one shown) formed on both sides thereof, and a claw 34 (only one shown) at the tip thereof. .

This claw 34 is engaged with the main body 21, and the cutter holder 30
is detachably attached to the main body 21.

The tape 4 is inserted into the guide groove 22 of the cutter holder 30.
A tape guide part 36 that prevents the tape 4 from lifting up and guides it so that it can be inserted properly when inserted into the tape.
is provided. Furthermore, an elastic part 38 that can be elastically deformed is formed to extend substantially parallel to the tape 4 to be inserted toward the stop surface 24, and at the tip of this elastic part 38 is a cover with a hollow interior. A section 40 is provided. Also,
Two presser feet 42 and 44 extend obliquely downward from this cover portion 40 toward the tape surface 4a.
44 is bent to press the end 6 of the tape 4 against the bottom surface 22a of the guide groove 22.

A part of the cover part 40 is cut out, and a holding part 46 hanging down toward the tape surface 4a is attached to the cover part 40.
is formed inside. A pin portion 48 is erected on this holding portion 46 and protrudes in a direction parallel to the tape surface 4a. On the other hand, an engagement hole 52 is bored approximately at the center of the cutting blade 50, which will be described later. The pin portion 48 is inserted into the engagement hole 52 of the cutting blade 50, and the cutting blade 50 is supported by the pin portion 48. Here, since the diameter of the pin portion 48 is smaller than the diameter of the engagement hole 52 by a predetermined amount, the cutting blade 50 is
It becomes possible to swing around the pin portion 48 in its longitudinal direction. Further, as shown in FIGS. 3 and 4, inside the cover part 40, an auxiliary blade part 60 (to be described later) whose tip end is the cutting blade 50,
A rib 49 facing the auxiliary blade portions 60 and 62 at a predetermined distance is formed to extend toward the auxiliary blade portions 60 and 62. The rib 49 prevents the cutting blade 50 from coming off the pin portion 48, and allows the cutting blade 50 to swing in the thickness direction (in the direction of arrow A in FIG. 1). That is, the cutting blade 50 is swingably supported by the pin portion 48 in the longitudinal direction and the thickness direction, and when the cutting blade 50 is pressed toward the tape surface 4a, the cutting edge of the cutting blade 50 is placed on the tape surface a. It is designed to hit evenly and stably. This pin portion 48 constitutes a support portion.

The cutting blade 50 has a linear blade portion 54 provided along the width direction of the tape 4, as shown in FIGS. 6 and 8. On both sides of the linear blade part 54, arcuate blade parts 56, 58 each having a radius R are connected to the linear blade part 54.
is formed.

Also, an angle θ formed from the double arc-shaped blade portions 56, 58 in the tangential direction of the circle with radius R and with the linear blade portion 54.
A linear auxiliary blade part 60 that extends so that it forms an obtuse angle,
62 are provided. In this example, this angle θ is 1
Although it is said to be 20 degrees, a range of about 105 degrees to 140 degrees is appropriate.

Further, as shown in FIG. 8, by setting the angle θ to 120 degrees, when the tape 4 is cut by the arc-shaped blade portions 56 and 58, it can be recognized that the corners are rounded visually. If the angle θ is made larger than this, it becomes difficult to visually recognize that the corners are rounded.

Further, in this embodiment, the tape 4 has a width W of 12 mm, and the error t of the width W is ±
It is 0.5 mm. Therefore, the minimum width is 11.5m
However, in accordance with the minimum width of the tape 4, in this embodiment, the linear blade portion 54 and both arcuate blade portions 58, 6 are
0 is formed to have this minimum width. That is, even when cutting the tape 4 with the minimum width, the tape 4
At least a roundness is formed at the corner by the arcuate blade portions 56,58. In addition, the linear blade portion 54 and the double arc-shaped blade portion 56
．． If the width with 58 is made smaller than the minimum width,
The amount cut by the auxiliary blade parts 60 and 62 becomes larger,
It gives the impression of being chamfered in a straight line rather than being rounded, and the soft feel of the roundness is lost.

On the other hand, when forming this cutting blade 50, in this embodiment,
A straight blade made of SK material with a shore hardness of approximately H360 has a radius of R.
The linear blade portion 54° and the arcuate blade portion 56, 5 are bent into a circular arc.
8. Auxiliary blade parts 60 and 62 are formed.

A lever 64 is rotatably supported on the main body 21 and is pulled in a direction to be housed in the main body 21 by a tension spring 66. By swinging the cutter holder 3 in the direction of arrow B against the tensile force of the tension spring 66, the cutter holder 3
By pushing down the holding part 46 of the tape 0, the elastic part 38 is elastically deformed, and the cutting blade 50 can be moved toward the tape surface 4a.

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

First, the printer 1 prints a tape 4 as shown in FIG.
is created. Then, in order to process the end portion 6 of this tape 40, the user places the tape 4 on the bottom surface 22 of the guide groove 22.
a, and while being guided by the tape guide 36, bend and lift the presser feet 42 and 44 to release the tape 4.
or stop surface 241; insert until it abuts. Then, when the lever 64 is swung in the direction of arrow B against the tensile force of the spring 66, the presser foot 42, 44 presses the tape 4 and prevents the tape 4 from slipping, while the cutter holder 30
The holding portion 46 is pushed down to move the cutting blade 50 toward the tape surface 4a.

During this movement, the cutting blade 50 is supported by the pin portion 48 with the upper side of the engagement hole 52 and the upper side of the cylindrical surface of the pin portion 48 in contact with each other until the cutting edge contacts the tape surface 4a. When the cutting edge contacts the tape surface 4a, since the diameter of the pin portion 48 is smaller than the diameter of the engagement hole 52, the pin portion 48 moves within the engagement hole 52 from the upper side to the lower side. During this time,
The cutting blade 50 is in a state where it can swing in its longitudinal direction and thickness direction, and its own weight causes the entire blade edge to align with the tape surface 4a.
move so that they come in even contact with the Thereafter, the lower side of the cylindrical surface of the bottle portion 48 comes into contact with the lower side of the engagement hole 52, and a uniform state of contact between the cutting edge and the tape surface 4a is maintained. and,
Further, as the holding portion 46 is pushed down with the swinging of the lever 64, the cutting blade 50 moves toward the bottom surface 22a of the guide groove 22, pushes off the tape 4, cuts off the end portion 6, and processes the end portion.

During this cutting, the linear blade portion 54 of the cutting blade 50
cut into a straight line parallel to its width direction.

Further, the arc-shaped blade portions 56 and 58 of the cutting blade 50 connect with the straight line of the tape 4 cut by the linear blade portion 54, and cut the tape 4 into an arc shape with a radius R of the arc-shaped blade portion 56,58. Then, the auxiliary blade portions 60 and 62 of the cutting blade 50 cut in the tangential direction of the circular arc having the radius R and at an obtuse angle θ with the linear cut made by the linear blade portion 54 . As a result, the end portion 6 of the tape 4 is cut so that both corners of the tape 4 appear rounded, as shown in FIG. and,
Since the corners of the tape 4 are rounded, it is difficult to peel off from the corners. In addition, since a straight part is also formed by the linear blade part 54, the tape 4 is not stuck along the edge when it is pasted.
The tape 4 can be attached using this straight portion as a reference, and the tape 4 can be attached easily.

As described in detail above, in the tape edge processing device of this embodiment, the cutting blade 50 is supported so as to be swingable in the longitudinal direction and the thickness direction with respect to the bin part 48, so that the entire cutting edge is It abuts uniformly against the tape surface 4a, and can reliably press off the end portion 6 without leaving any uncut parts. and,
The tape 4 whose edges have been treated in this way becomes difficult to peel off.

Further, since the support structure of the cutting blade 50 is a very simple one that does not require high precision, the installation work of the cutting blade 50 involves bending the cutting blade 50 in the longitudinal direction and inserting the pin portion 48 into the engagement hole 52. It's as simple as inserting the .

Note that the present invention is not limited to the above embodiments (
Numerous changes may be made without departing from the spirit. For example, it goes without saying that the present invention can be applied to a device that cuts a portion of a long tape other than a tape end processing device. Further, the shape of the cutting blade 50 is not limited to the shape in the above embodiment, but may be arcuate or wavy. That is, it is sufficient if it is non-linear.

[Effects of the Invention] As detailed above, the present invention eliminates the need for a highly accurate cutting blade mounting structure and simplifies the cutting blade mounting work.
It is possible to provide a tape cutting device that can reliably cut tape.

[Brief explanation of the drawing]

1 to 9 show an embodiment embodying the present invention, FIG. 1 is a sectional view of an end cutting device equipped with a cutting blade according to the present invention, and FIG. 2 is a sectional view of an end cutting device equipped with a cutting blade according to the present invention. 3 is an enlarged perspective view of the cutter holder, FIG. 4 is a cross-sectional view of a portion of the cover, FIG. 5 is an explanatory diagram showing the state of contact between the cutting blade and the tape, and FIG. The figure is an enlarged perspective view of the cutting blade.
The figure is a front view of the tape created by the printing device, Figure 8 is an explanatory diagram of the cutting blade, Figure 9 is an explanatory diagram of the arcuate blade part of the cutting blade, and Figure 10 is an explanation of the tape cut by the cutting blade. It is a diagram. In the figure, 4 is a tape, 22a is a bottom surface, 30 is a cutter holder, 48 is a bottle part, 50 is a cutting blade, and 64 is a lever.

Claims (1)

[Claims] 1. A non-linear cutting blade that cuts the tape along its width; a holder that holds the cutting blade at a predetermined distance from a pedestal; and a holder for holding the cutting blade in a pedestal. In the tape cutting device, the holder is configured to swing the cutting blade in its longitudinal direction and thickness direction. A tape cutting device characterized by comprising a supporting portion for supporting the tape.