JPH08141982A - Cutter device - Google Patents

Abstract

PURPOSE: To achieve a simple structure and a low cost, and also to prevent flue of a gluey tape from being stuck on facing surfaces of a moving blade and the fixed blade in cutting. CONSTITUTION: In a cutter device 30 for cutting a tape to be printed by the turning operation of a moving blade 33 rotatably supported to a fixed blade 31 while pinching the tape between the moving blade and the fixed blade 31, respective cutting edge parts 31a, 33a of the fixed blade 31 and the moving blade 33 are bent and formed so that respective facing surfaces on which the fixed blade 31 and the moving blade 33 are superimposed may be rubbed against each other in the separating direction. Accordingly, respective facing surfaces on which the fixed blade 31 and the moving blade 33 are superimposed are separated from each other, and glue of the tape to be printed is not deposited on the facing surfaces of the fixed blade 31 and the moving blade 33 even if the gluey tape to be printed is pinched between the moving blade and the fixed blade 31 by the turning operation of the moving blade 3, and the structure is simple, and it is not necessary to apply any fluorine coating treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter device for cutting an object such as a tape.

[0002]

2. Description of the Related Art Conventionally, handy type printers which can easily print desired information at desired places have been widely used in printing apparatuses. As such a printing apparatus, for example, a tape cassette accommodating an adhesive tape (cut object) is detachably mounted, desired information is sequentially printed on the tape by a print head, and the printed tape is placed at a predetermined location. There is a label printer that can be used as a label by cutting. This label printer has a cutter device for cutting the tape on which information is printed.
The cutter device includes, for example, a fixed blade fixed in the equipment case, and a movable blade rotatably attached to one end of the fixed blade by caulking a rivet or the like, and the movable blade is separated from the fixed blade. When the tape printed in the state is sent between the fixed blade and the movable blade and printing is completed,
There is a structure in which a movable blade rotates to sandwich a tape between a fixed blade and cut the tape.

[0003]

However, in such a conventional cutter device, when the movable blade rotates to sandwich the tape between the fixed blade and the tape, the opposing surface between the movable blade and the fixed blade is cut. Are rubbed against each other and rotated, so that, for example, when the tape with glue is cut, the glue of the tape is likely to adhere to the facing surfaces of the movable blade and the fixed blade, which reduces the sharpness. In addition, in order to prevent the adhesion of the glue, it has been considered to perform the fluorine coating treatment on the movable blade and the fixed blade, but the fluorine coating treatment increases the cost.
An object of the present invention is to provide a cutter device that has a simple structure and can be manufactured at low cost, and can reliably prevent the adhesive of the adhesive tape from adhering to the facing surfaces of the movable blade and the fixed blade during cutting. is there.

[0004]

The present invention has a fixed blade,
A cutter device that includes a movable blade that is rotatably supported by the fixed blade and that sandwiches an object to be cut between the fixed blade and the fixed blade by the rotating operation of the movable blade. It is characterized in that the blade tip portion is bent and formed so as to be capable of rubbing against each other in the direction in which the facing surfaces where the fixed blade and the movable blade overlap each other are separated from each other. In this case, as described in claim 2, it is desirable that the fixed blade and the movable blade are rotatably attached by a screw member via an elastic member between them, and the fixed blade is fixed as described in claim 3. It is preferable that the blade is integrally formed with a chassis provided inside the main body of the apparatus.

[0005]

According to the present invention, since the cutting edge portions of the fixed blade and the movable blade are bent and formed so as to be able to rub against each other in the direction in which the facing surfaces where the fixed blade and the movable blade overlap each other are separated from each other, the fixed blade is formed. Since the opposing surfaces where the movable blade overlaps with the movable blade are separated from each other, even if an object to be cut such as a tape with glue is sandwiched between the fixed blade and the movable blade due to the rotating operation of the movable blade, the object to be cut is cut. No glue or the like adheres to the facing surfaces of the fixed blade and the movable blade, and only the edges of the fixed blade and the movable blade are bent and formed in the direction of separating the facing surfaces of the fixed blade and the movable blade. Therefore, the structure is simple, and there is no need to perform the fluorine coating treatment as in the prior art, so that a low-cost product can be obtained. In this case, if the fixed blade and the movable blade are rotatably attached to the fixed blade and the movable blade by means of a screw member via an elastic member between them, even a layman can make a fine adjustment of the movable blade and the fixed blade. It is easy and claim 3
As described above, if the fixed blade is integrally formed with the chassis provided in the main body of the apparatus, the number of parts can be reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a label printer will be described below with reference to FIGS. FIG. 1 is an external perspective view of the label printer. This label printer includes a device case 1. This equipment case 1
A key input unit 2 for inputting information, a display unit 3 including a liquid crystal display device for displaying the input information, and a cassette housing recess 5 into which a tape cassette 4 is detachably mounted are provided on the upper surface of the. Has been. 2 and 3 in the device case 1 below the cassette housing recess 5.
The chassis 6 shown in is provided. A rotary shaft 8 provided with a platen roller 7 at a predetermined position on the chassis 6,
A support shaft 10 that rotatably supports the thermal head 9 with respect to the platen roller 7, and a rotary shaft 1 for ink tape winding.
1, the cassette guide shafts 12 and 13, and the tape guide shaft 14 are respectively the cassette storage recess 5 as shown in FIG.
It is erected so as to project inside. The rotation shaft 8 of the platen roller 7 is a platen gear 1 for which rotation of a motor (not shown) is provided on the rotation shaft 8 via an intermediate gear 15.
It is configured to rotate by being transmitted to 6.
Further, the rotation of the ink tape winding rotary shaft 11 is rotated by the rotation of the platen gear 16 being transmitted to the winding gear 19 provided on the ink tape winding rotary shaft 11 via the intermediate gears 17 and 18. It is like this.

As shown in FIG. 1, the tape cassette 4 mounted in the cassette accommodating recess 5 includes a print tape supply reel 21, an ink tape supply reel 22, and an ink tape take-up reel 23 in a cassette case 20. The print-tape supply reel 21 is fitted to the cassette guide shaft 12, the ink tape take-up reel 23 is engaged with the ink tape take-up rotary shaft 11, and a predetermined portion of the cassette case 20 is connected to the cassette guide shaft 13 and The tape guide shaft 14 is fitted in the cassette housing recess 5 in a fitted state. In this state, the print-receiving tape 24 fed out from the print-receiving tape supply reel 21 has the tape guide shaft 14
The tape discharge port 2 provided in the equipment case 1 through the space between the platen roller 7 and the thermal head 9
5 is sent out from the equipment case 1. in this case,
The print-receiving tape 24 is a tape with adhesive having a release paper provided on one surface of the base tape via an adhesive. The ink tape 26 fed from the ink tape supply reel 22 is guided by the tape guide shaft 14 and then wound around the ink tape take-up reel 23 after passing between the platen roller 7 and the thermal head 9. The print-receiving tape 24 between the platen roller 7 and the thermal head 9
The ink tape 26 and the ink tape 26 are superposed on each other with the outer surface of the base tape of the print-receiving tape 24 and the ink surface of the ink tape 26 in contact with each other.

On the other hand, as shown in FIGS. 2 and 3, in the vicinity of the tape discharge port 25 in the equipment case 1, a cutter device 30 for cutting the printed tape 24 to be printed.
Is provided. The cutter device 30 includes a fixed blade 31 and a movable blade 33 having an arm portion 32. Fixed blade 3
As shown in FIG. 2, reference numeral 1 denotes an "L" -shaped structure, which is integrally formed on the chassis 6 by cutting and raising processing (forming processing), and a blade edge portion 31a is formed on one side edge of a rising portion thereof. It has become. As shown in FIGS. 3A and 3B, the movable blade 33 is such that the base end side of the arm portion 32 is a fixed blade as shown in FIGS. 8 and 9 in a state where the blade tip portion 33a faces the blade tip portion 31a of the fixed blade 31. A fixing screw (screw member) 34 and a coil spring (elastic member) 35 are rotatably attached to the lower portion of 31.

That is, the cutting edge portions 31a, 33a of the fixed blade 31 and the movable blade 33 are bent and formed in an "L" shape in the direction in which the facing surfaces where the fixed blade 31 and the movable blade 33 overlap each other are separated from each other. It rubs against each other. In addition, the movable blade 33, as shown in FIG.
In order to separate the respective facing surfaces of No. 1 from each other by a predetermined distance, the movable blade 3
The base end of 3 is rotatably attached to the lower part of the fixed blade 31 by a fixing screw 34. In this case, the fixing screw 34
By the tightening force with respect to the spring force of the coil spring 35, the blade tip portions 31a, 33a of the fixed blade 31 and the movable blade 33.
Is configured to adjust the friction of the. One end of the coil spring 35 is locked to the movable blade 33 and the other end is locked to the fixed blade 31. In addition, as shown in FIG. 4, the arm portion 32 of the movable blade 33 is substantially orthogonal to the blade tip portion 33a of the movable blade 33 from the side of the fixed screw 34 which is the rotation center of the movable blade 33, and the front portion of the blade tip portion 33a. Has been extended toward. The arm portion 32 is provided with a locking groove 36 on the tip side thereof, and one end portion 37a of a torsion spring 37 provided on the chassis 6 is locked in the locking groove 36, and the spring force of the torsion spring 37 causes The movable blade 33 is urged in a direction away from the fixed blade 31.

Further, the cutter device 30 is provided with a rotary operator 38 for operating the movable blade 33 from the outside of the equipment case 1. The rotary operator 38 includes a shaft 39 attached to the rising portion 6a of the chassis 6 located near the middle of the arm 32, a dial 40 rotatably attached to the tip of the shaft 39, and the shaft 39 inserted therethrough. Attached to the connecting boss 41 provided on the dial 40,
And a rotation operation plate 42 that rotates together with the rotation operation plate 42. The rotation operation plate 42 is provided with a connecting pin 44 that is movably inserted into a guide groove 43 provided on the tip side of the arm portion 32. Further, in the rotary operator 38, when the rotary operation plate 42 rotates together with the dial 40, the connecting pin 44 is resisted against the spring force of the torsion spring 37.
The arm 32 is rotated around the fixing screw 34 while moving in the second guide groove 43.

Further, the cutter device 30 includes the paper pressing member 4
5 is provided. As shown in FIGS. 2 and 3, the paper pressing member 45 has a structure in which a front end side pressing piece 46 and a rear end side pressing piece 47 are connected by a ring-shaped elastic member 48. The pressing pieces 46, 47 are slidably locked by the locking claws 46a, 47a in a guide hole 49 provided in the rising portion 6b of the chassis 6 located in the vicinity of the fixed blade 31, whereby the pressing pieces 46 on the front end side are slidable. 46 is slid in a direction orthogonal to the cutting edge portion 31a of the fixed blade 31. Further, the rear end side pressing piece 47 is provided with a connecting pin 51 movably inserted into an eccentric guide groove 50 provided on the rotation operation plate 42 from the outer peripheral side toward the center side. Then, as the rotation operation plate 42 rotates, the eccentric guide groove 50
Is moved, the connecting pin 51 is moved by the eccentric guide groove 50 along the guide hole 49 and toward the blade tip portion 31a of the fixed blade 31, and the tip side pressing piece 46 is moved.
The printing target tape 24 is pushed out to the front of the blade edge portion 31a and is pressed against a pedestal (not shown) provided near the tape discharge port 25.

Cutter device 3 of such a label printer
At 0, as shown in FIG. 4, the arm portion 32 is normally biased by the spring force of the torsion spring 37, and the movable blade 33 is separated from the fixed blade 31. In this state, as shown in FIG. 1, the thermal head 9 is driven according to the information input by the key input unit 2 of the label printer and displayed on the display unit 3, and the thermal head 9 receives desired information. The print-receiving tape 24, which is sequentially printed on the print tape 24, is printed along with the print tape 24, and is sent out of the device case 1 from the tape discharge port 25 through the space between the fixed blade 31 and the movable blade 33.

When the printing is completed, the tape 24 to be printed is printed.
When cutting, the cut portion of the print-receiving tape 24 is made to correspond to the fixed blade 31, and in this state, the dial 40 of the rotary operator 38 is rotated against the spring force of the torsion spring 37. Then, the rotary operation plate 42 rotates together with the dial 40 around the shaft 39, and the rotation operation plate 4 rotates with this rotation.
The second eccentric guide groove 50 moves, and the connecting pin 51 of the rear end side pressing piece 47 moves toward the blade tip 31a side of the fixed blade 31 along the guide hole 49, whereby the tip side pressing piece. 46 is pushed out to the front of the blade edge portion 31a of the fixed blade 31 via the elastic member 48, and the printed tape 24 to be printed is elastically pressed to a pedestal provided near the tape discharge port 25. At the same time, as the rotary operation plate 42 rotates, the connecting pin 44 of the rotary operation plate 42 moves toward the arm portion 3.
Since the arm portion 32 is rotated around the fixed screw 34 while moving in the second guide groove 43, the movable blade 33 is rotated toward the fixed blade 31 to sandwich the print tape 24 with the fixed blade 31. And cut it. After cutting, the torsion spring 3
The arm portion 32 is returned to the original initial position shown in FIG. 4 by the spring force of 7, and the movable blade 33, the rotary operation plate 42, and the dial 40 are automatically returned to the original initial position accordingly.

As described above, in the cutter device 30, the cutting edge portions 31a, 33a of the fixed blade 31 and the movable blade 33 are bent and formed in the direction in which the facing surfaces where the fixed blade 31 and the movable blade 33 overlap are separated from each other. As a result, the fixed blade 31 and the movable blade 33 are separated from each other by the frictional movement of the movable blade 33. Even when sandwiched between the fixed blade 31 and the fixed blade 31, the glue of the print-receiving tape 24 does not adhere to the facing surfaces of the fixed blade 31 and the movable blade 33. In addition, each blade tip portion 31a of the fixed blade 31 and the movable blade 33,
33a is a structure formed by bending in a direction in which the facing surfaces of the fixed blade 31 and the movable blade 33 are separated from each other, so that sharpening of the peaks, hammering, and attaching a small blade can be omitted, and the structure is simplified, Moreover, since it is not necessary to perform the fluorine coating treatment as in the conventional case, a low-priced product can be obtained. Further, in the cutter device 30, the fixed blade 31 and the movable blade 33 are
Between the fixed blade 31 and the movable blade 3 via the coil spring 35 between
3 is rotatably attached by the fixing screw 34, and therefore, only by adjusting the tightening force of the fixing screw 34, the delicate rubbing of the fixed blade 31 and the cutting edge portions 31a, 33a of the movable blade 33 can be prevented. Even an amateur can easily adjust. Further, since the fixed blade 31 is integrally formed on the chassis 6 provided in the device case 1 by the forming process, the fixed blade 31 as a separate component is unnecessary, and the number of components can be reduced.

Although the coil spring 35 is interposed between the fixed blade 31 and the movable blade 33 in the above embodiment, the invention is not limited to this, and an elastic member such as a leaf spring or a rubber bush may be used. Further, in the above embodiment, the cutter device of the label printer has been described, but the present invention is not limited to this, and can also be applied as a cutter device of a printer used in an information processing device such as a word processor.

[0016]

As described above, according to the present invention, the blade tips of the fixed blade and the movable blade are bent so that they can rub against each other in the direction in which the facing surfaces where the fixed blade and the movable blade overlap are separated from each other. Since they are formed, the opposing surfaces where the fixed blade and the movable blade overlap are separated from each other, so that the object to be cut such as adhesive tape is sandwiched between the fixed blade and the fixed blade by the rotating operation of the movable blade. Even if it is cut, the glue of the object to be cut does not adhere to the facing surface of the fixed blade and the movable blade, and the cutting edge parts of the fixed blade and the movable blade are fixed to the facing surface of the fixed blade and the movable blade. Since it is only bent and formed in a direction to separate the two, the structure is simple and there is no need to perform the fluorine coating treatment as in the conventional case, so that a low-priced product can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a label printer to which a cutter device of the present invention is applied.

FIG. 2 is a perspective view showing a main part of the internal structure of the label printer of FIG.

FIG. 3 is a perspective view seen from the upper right of FIG.

FIG. 4 is a side view with a part of FIG. 2 omitted.

FIG. 5 is a side view in the cut state of FIG.

6 is a schematic plan view of FIG.

7 is a schematic plan view of FIG.

FIG. 8 is an enlarged view of a main part of FIG.

9 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Equipment Case 6 Chassis 24 Printed Tape 30 Cutter Device 31 Fixed Blade 31a Fixed Blade Blade Tip 33 Movable Blade 33a Movable Blade Blade Tip 34 Fixing Screw 35 Coil Spring

Claims (3)

[Claims] 1. A fixed blade, and a movable blade rotatably supported by the fixed blade, wherein an object to be cut is sandwiched between the fixed blade and the fixed blade by the rotating operation of the movable blade. In the cutter device, each of the cutting edge portions of the fixed blade and the movable blade is bent and formed so as to be capable of rubbing against each other in a direction of separating respective facing surfaces where the fixed blade and the movable blade overlap each other. Cutter device. 2. The cutter device according to claim 1, wherein the fixed blade and the movable blade are rotatably attached by a screw member via an elastic member between them. 3. The cutter device according to claim 1, wherein the fixed blade is integrally formed with a chassis provided in the main body of the device.