JP2002255434A - Half cutting device for printing tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a half cutting device for a printing tape of such a structure that an adhesive layer is interposed between the tape base and an exfoliating sheet as improvement of a conventional half cutting technique to cut only the tape base by pressing a cutting blade to the printing tape, which involves such problems that the adhesive layer may affix to the forefront of the blade to cause the printing tape to float in association with retreat of the cutting blade and that the tape paid off continuously generates a clog at the part with the cutting blade. SOLUTION: The half cutting device for a printing tape includes a hold-down member 7 positioned ahead of the forefront 62 of the cutting blade 6, and a half cutting process is conducted so that the blade forefront 62 is pressed to the tape T, and when thereafter the cutting blade 6 is to be retreated, the printing tape T is held down by the member 7 until the forefront 62 separates completely from the tape T.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter which is attached to, for example, a tape printing apparatus and which advances and retreats at a right angle to the surface of a printing tape on which a release sheet is adhered to the back surface of a tape base via an adhesive layer. The present invention relates to a printing tape half-cutting device that presses a blade to cut only a tape base.

[0002]

2. Description of the Related Art There is known a tape printing apparatus which continuously prints continuous numbers and the like on the surface of a long printing tape at predetermined intervals. The printing tape printed by the tape printing apparatus is cut into a number or the like divided at intervals as described above, and is attached to a switchboard or an electric wire during wiring work. However, it is troublesome to cut the print tape manually with scissors or the like.Therefore, a retractable cutter blade is provided at the tape dispensing part of the tape printer, and when the point to be cut reaches the position of the cutter blade, the cutter blade is A half-cutting device is provided for moving forward and cutting only the tape substrate while leaving the release sheet.

On the other hand, the cutter blade is held by a holder,
In some cases, the cutter blade is detachable from the tape printer.However, the cutter blade is retracted with the cutter blade removed from the tape printer together with the holder, and the cutter blade is retracted so that the tip of the cutter blade is stored in the holder. Is always biased backwards. In many cases, the holder is an injection-molded product made of resin, and the urging means for generating this urging force is integrally molded with the holder body during injection molding.

[0004]

When the cutter blade advances and cuts only the tape substrate, the tip of the cutter blade reaches the adhesive layer. When the cutter blade is retracted in this state, the adhesive layer adheres to the cutter blade, and the printing tape is pulled in the retreating direction of the cutter blade, so that the printing tape is not discharged from the tape printer. Even in such a state, the tape printing device sequentially prints on the printing tape, so that there is a problem that the printing tape is jammed in the tape printing device.

On the other hand, when the urging means for retracting the cutter blade is molded by injection molding with the holder removed from the tape printing apparatus, the holder is mounted on the tape printing apparatus, and the urging means is flexed for a long time. If left unattended, the urging means will be plastically deformed, and even if the holder is removed from the tape printer, there may be cases where sufficient urging force is not generated to retract the cutter blade.

Therefore, in view of the above problems, the present invention does not allow the printing tape to adhere to the cutter blade after half-cutting and move with the cutter blade, and the holder is mounted on the tape printing apparatus for a long time. Another object of the present invention is to provide a printing tape half-cutting device in which the urging force for retracting the cutter blade does not decrease.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, a printing tape half-cutting device according to the present invention is provided on a surface of a printing tape in which a release sheet is adhered to the back surface of a tape base via an adhesive layer. In a printing tape half-cutting device that cuts only the tape base by pressing a cutter blade that advances and retreats at a right angle to the right side, a presser that presses the printing tape until the cutter blade completely separates from the tape base after cutting the tape base. The member is provided adjacent to and near the cutter blade.

[0008] Since the pressing member presses the printing tape until the cutter blade is completely separated from the tape base, even if the adhesive layer is stuck to the tip of the cutter blade, it is separated when the cutter blade retreats, and the printing tape is separated. It does not move with the cutter blade.

It is preferable that the pressing member is located forward of the cutting edge in a state where the cutter blade is at the retracted position, and functions as a guard for the cutter blade.

The printing tape downstream of the cutter blade is easy to move because it is not restrained. Therefore, if the pressing member is provided downstream of the cutter blade in the transport direction of the printing tape, the printing tape downstream of the cutter blade can be prevented from moving.

Incidentally, the cutter blade and the holding member are both held in a holder which is detachable from the tape printer, and the tip of the cutter blade is not exposed outside the holder when the holder is removed from the tape printer. If the storage means for storing the information is formed integrally with the holding member, the number of parts does not increase as compared with the conventional one.

Further, if the holding member is made of an elastic metal material, there is no fear of plastic deformation due to long-time use.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a portable tape printer according to the present invention. The tape printer 1
Is provided with a keyboard 11 for inputting characters or symbols to be printed using the keyboard 11. The input characters and symbols are displayed on the display unit 12. The printing material T printed by the tape printer 1 is a tape, a heat-shrinkable tube, an ID strip, a PVC tube, or the like. The tape has a pressure-sensitive adhesive layer adhered to the back surface of the thin film tape base,
Further, a release sheet is adhered to the pressure-sensitive adhesive layer. It is necessary to print on a plurality of types of tapes having a small thickness and a constant thickness but different widths. Therefore, each type was wound into a roll and stored in the cassette 2. Further, since the heat-shrinkable tube is relatively thin in the material forming the tube, it was crushed flat and wound in a roll shape and stored in the cassette 2 like the tape. Note that there are a plurality of types of heat-shrinkable tubes having different diameters. Since the heat-shrinkable tubes have different diameters, when they are crushed flat, they are stored in the cassette 2 in a belt-like shape having different width dimensions.

The ID strip is inserted into a strip holder attached to an electric wire or the like in advance and has a relatively large thickness (about 1 mm). The ID strip is wound in a roll like the tape or the heat-shrinkable tube and stored in the cassette 2. I do. Since the PVC tube is relatively thick and hard to flatten, it is supplied from the outside of the tape printer 1 in a roll state without being stored in the cassette 2. As described above, since most of the printing materials T are stored in the cassette 2, when changing the type of the printing materials T, the cassette is replaced.

When the cassette 2 is set in the tape printer 1, the print material T is sandwiched between a pair of feed rollers 13 and sent out toward the print head 14. Reference numeral 15 denotes a pinch roller opposed to a platen roller (not shown). The printed material T is conveyed to the half-cutting unit 5 through a space between the platen roller and the pinch roller 15, and is printed every predetermined length. Cut in half.

Referring to FIG. 2, a holder 51, which is a resin injection-molded product, is provided in the half-cutting unit 5, and a plate-shaped cutter blade 6 is slidably held back and forth.
A support boss 52 is provided on the holder 51 so as to protrude in the lateral direction, and the spring 7 as a torsion spring-like pressing member is mounted on the support boss 52. The spring 7 is formed by winding spring steel. The rear end 71 of the spring 7 is engaged with a hole 61 formed in the cutter blade 6. Therefore, the cutter blade 6 is always urged backward,
When the holder 51 is removed from the tape printer 1, the cutter blade 6 is retracted by the urging force of the spring 7, and the cutter blade 6
Is not exposed from the holder 51.

Referring to FIG. 3, a fixing pin 16 is attached at a position where the holder 51 is mounted. When the holder 51 is inserted into the tape printer 1 from above, the rear end of the cutter blade 6 is It rides on the fixing pin 16 and moves forward. However, even when the cutter blade 6 advances, the tip 62 of the cutter blade 6 is located behind the spring 7, and the spring 7 functions as a guard for the cutter blade 6.

Referring to FIG. 4, a printing tape T is
And half-cut it by sandwiching it with the tip 62 of the cutter blade 6,
As described above, since the spring 7 is located forward of the tip 62, the spring 7 first contacts the printing tape T, and presses the printing tape T with an elastic force. To reach. When the leading end 62 advances to a position where the release sheet remains to be cut, the print tape T is cut in half.

Subsequently, the holder 51 is retracted, but when the tip 62 of the cutter blade 6 is separated from the printing tape T, the spring 7 is still pressing the printing tape T against the die 50. Therefore, even if the adhesive layer of the printing tape T is stuck to the tip 62 of the cutter blade 6, the printing tape T does not move in the direction away from the die 50 while being pressed against the die 50.

The printing tape T is conveyed in a fixed direction, but the spring 7 is mounted so as to be located downstream of the cutter blade 6 along the conveying direction of the printing tape T. As described above, when the print tape T is restrained on the downstream side of the cutter blade 6, the upstream side is restrained by the platen roller or the like, so that the left and right sides of the cutter blade 6 are also restrained. Conversely, if the spring 7 is provided on the upstream side, it is not preferable because the printing tape T downstream from the cutter blade 6 cannot be restrained at all.

[0021]

As is apparent from the above description, the present invention has the pressing member, so that when the printing tape is cut in half by the cutter blade, the adhesive layer of the printing tape adheres to the tip of the cutter blade. However, the printing tape does not move with the cutter blade.

Further, if the storage means and the holding member are formed of a metal material, they are hardly plastically deformed even if left in a deformed state for a long time, and the elastic force originally planned does not decrease.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing shapes of a holder and a cutter blade.

FIG. 3 is a diagram showing a state in which a holder is set in a tape printer.

FIG. 4 is a view showing a state in which a printing tape is cut in half by a cutter blade;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tape printing device 2 Cassette 5 Half cutting device 6 Cutter blade 7 Spring 50 Die 51 Holder

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C058 AB04 AB16 AE04 AE15 AF06 AF51 LA03 LA26 LA36 LB05 LB17 LC11 3C027 JJ08 JJ10 JJ18

Claims (5)

[Claims] 1. A printing tape for cutting only a tape substrate by pressing a cutter blade which advances and retreats at a right angle to a surface of the printing tape on which a release sheet is adhered via a pressure-sensitive adhesive layer on the back surface of the tape substrate. A cutting member which presses the printing tape until the cutter blade completely separates from the tape substrate after cutting the tape base, and which is provided adjacent to the cutter blade in the vicinity of the cutter blade. Cutting device. 2. The printing tape according to claim 1, wherein the pressing member is located forward of the cutting edge when the cutter blade is at the retracted position, and functions as a guard for the cutter blade. Half cut device. 3. The printing tape half-cutting device according to claim 1, wherein the pressing member is provided downstream of the cutter blade in the conveying direction of the printing tape. 4. The cutter blade and the holding member are both held in a holder that is detachable from the tape printing device, and the tip of the cutter blade is not exposed outside the holder when the holder is removed from the tape printing device. 4. A printing tape half-cutting device according to claim 1, wherein the storing means for storing the printing tape in the recording tape is formed integrally with the pressing member. 5. The apparatus according to claim 1, wherein the pressing member is made of an elastic metal material.