JP2005074598A - Cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly resume cutting by allowing a movable cutting edge member to smoothly reenter paper after forming uncut parts, regarding a cutter for cutting leaving a plurality of uncut points. <P>SOLUTION: This cutter has the movable cutting edge member 71 and a fixed cutting edge member 120. The movable cutting edge member 71 has pointed parts 72-2b, 73-2b pointed in a Y2 direction, at parts facing inlet parts 73a, 74a out of cutout parts 73, 74. The pointed parts 72-2b, 72-3b pierce the paper when restarting to cut paper. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cutter, and more particularly, to a cutter that is provided in association with a printer and that partially cuts out a plurality of printed sheets.

  A POS terminal and a ticket issuing terminal incorporate a thermal printer having a function of automatically cutting continuous paper. The cutter provided in the thermal printer has a configuration including a fixed blade, a movable blade, and a motor for moving the movable blade, and the movable blade has a substantially V-shape in which the blade portion is composed of a pair of hypotenuses, When the movable blade moves in the direction that overlaps the fixed blade, there are two parts where the blade part of the movable blade hits the blade part of the fixed blade, and each corresponding part moves from both sides toward the center. In this configuration, the sheet is cut by applying a shearing force to the sheet where the blade part of the movable blade moves while hitting the blade part of the fixed blade.

The movable blade has a shape in which the substantially V-shaped blade portion has a notch portion in each of the pair of oblique sides, and is controlled so that the final movement position of the movable blade becomes a desired position. If the final movement position is shallow, the cutting state is left with a plurality of points, and if the final movement position is slightly deeper, the cutting state is left with one point remaining, and if the final movement position is deeper, the full cut state is set.
Japanese Patent Laid-Open No. 11-48187

  The movable blade has a shape having a notch in the oblique side, the blade is in a discontinuous state, and the cutting of the paper is performed when the cutting by the outer blade proceeds to the end of the blade. Temporarily interrupt and proceed so that cutting by the inner blade portion resumes. An uncut portion is formed in a portion where the cutting operation is temporarily interrupted.

  It is necessary to smoothly resume cutting by the inner blade portion.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a cutter that can smoothly resume cutting.

In order to solve the above problems, the present invention provides:
A fixed blade,
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. A movable blade,
A movable blade moving mechanism for sliding the movable blade,
When the movable blade moves in a direction overlapping the fixed blade to cut the paper, the portion where the blade portion of the movable blade hits the blade portion of the fixed blade moves from both sides of the movable blade toward the center, In a cutter that is configured to perform cutting with multiple points, cutting with one point remaining, and full cut according to the moving position of the movable blade,
The cutout portion of each oblique side of the movable blade is characterized by having a pointed pointed portion at a portion near the center of the movable blade at the entrance.

  The pointed portion pierces the paper when the cutting of the paper is started again in a state where the cutting of the paper is temporarily interrupted.

  As described above, according to the present invention, when the paper cutting is restarted in a state where the paper cutting is temporarily interrupted, the cutting is smoothly resumed by the pointed portion piercing the paper. I can do it. Therefore, even after being used for a long period of time, partial cutting can be performed smoothly, leaving a plurality of points.

Next, an embodiment of the present invention will be described.
[Example 1]
1 and 2 show a thermal printer 10 having a cutter 70 according to a first embodiment of the present invention. 3A, 3B, and 3C schematically show the thermal printer 10. FIG. The thermal printer 10 is a line printing type and a clamshell type. 4A and 4B show the portable terminal device 20 in which the thermal line printer 10 is incorporated, and FIG. 5 shows a state in which the thermal line printer 10 is incorporated in the portable terminal device 20. X1-X2 is the width direction of the thermal printer 10, Y1-Y2 is the longitudinal direction, and Z1-Z2 is the height direction.

[Overall Configuration and Operation of Thermal Printer 10]
The thermal printer 10 has a configuration in which the second module 50 shown in FIG. 8 is detachably coupled to the first module 30 shown in FIG. 6, and the cutter 70 is in a state where the second module 50 is coupled to the first module 30. In this configuration, printing and cutting are controlled by a control circuit 140 formed of a microcomputer. The cutter 70 is arranged on the downstream side of the portion where printing is performed in the paper feeding direction.

  As shown in FIG. 6, the first module 30 includes a first support member 31, a fixed blade member 120, a thermal head support member 33 in which a thermal head 32 is fixed, a head pressure biasing leaf spring member 34, a first The second pulse motors 35 and 36, the first and second gear trains 37 and 38, the platen roller lock members 41 and 42, the photo interrupter 130, and the like are attached.

  The fixed blade member 120 has a flat plate shape, has a blade portion 120a, and supports the convex portions 120b and 120c on the X1 and X2 sides and the convex portions 120d and 120e along the Y2 side as shown in FIG. It is engaged with holes 121 a to 121 d of the member 121 and attached to the support member 121, and the support member 121 is screwed onto the first support member 31. The support member 121 is a press-formed product of a thin metal plate, and has plate spring portions 121e, 121f, 121g and support pieces 121h, 121i formed by cutting and raising in the Z1 direction. The fixed blade member 120 is supported by the support pieces 121h and 121i, and is biased in the Z1 direction by the leaf spring portions 121e, 121f, and 121g. As shown in FIG. 11, the convex portions 120d and 120e are The blade part 120a side is pushed up in the Z1 direction around the part engaged with the hole parts 121c and 121d. When the fixed blade member 120 is displaced so as to sink in the Z2 direction while bending the plate spring portions 121e, 121f, 121g, the fixed blade member 120 is moved to the fixed blade member 120 by the spring force of the bent plate spring portions 121e, 121f, 121g. Generates a blade pressure F in the Z1 direction.

  The thermal head support member 33 has a size corresponding to the width of the first support member 31, and as shown in FIG. 3A, the Z2 end is supported by the support portion 31a and rotates within a narrow angle range. It is supported so as to be inclined at an angle α in the Y1 direction with respect to the vertical plane. The thermal head 32 is fixed to the surface of the thermal head support member 33 on the Y1 side, and is pressed in the Y1 direction by the leaf spring member 34.

  The first pulse motor 35 is for rotating the platen, and the gear of this spindle is in mesh with the first gear train 37. The second pulse motor 36 is for moving the movable blade, and as shown in FIG. 9, the gear 36 a of the spindle meshes with the second gear train 38. Reference numeral 39 denotes an output-side small-diameter gear of the first gear train 37, and reference numeral 40 denotes an output-side small-diameter gear of the second gear train 38. The first pulse motor 35 and the second pulse motor 36 are rotated by an angle corresponding to the number of pulses supplied. In particular, in a series of printing operations for issuing a large number of tickets or the like, the second pulse motor 36 is supplied with a signal having a different number of pulses depending on the situation as described later, and during the series of printing operations, A three-point remaining partial cut, a two-point left partial cut, and a one-point left partial cut are performed. Finally, a signal having the maximum number of pulses is supplied and a full cut is performed.

  The platen lock members 41 and 42 are disposed on the X1 and X2 sides, and the operation lever 43 is attached to the platen lock member 41.

  The photo interrupter 130 has a structure in which a light receiving portion and a light emitting portion are opposed to each other. Normally, the light receiving portion receives light and is turned on, and a light shielding plate portion 56a which is a part of a rack 56 described later emits light from the light receiving portion. When it enters the space, it is shielded from light and turned off. The photo interrupter 130 detects that the movable blade member 71 is retracted in the Y1 direction.

  As shown in FIGS. 8 and 9, the second module 50 has a configuration in which a platen roller 52, a movable blade member 71, a gear train 54, and the like are attached to a substantially U-shaped second support member 51. FIG. 9 is an exploded view of the second module 50, and the shape of each member is schematically shown. The gear train 54 and racks 56 and 57 described later constitute a mechanism 200 that reciprocally slides the movable blade member 71.

  The 2nd support member 51 has the top-plate part 51a and the flange parts 51b and 51c of this both sides, and is a substantially U shape. In the platen roller 52, shaft portions 52 a and 52 b protruding on both sides are supported by bearing portions 51 d and 51 e formed on the second support member 51. A gear 55 is fixed to the shaft portion 52b. The movable blade member 71 has a flat plate shape, has a V-shaped blade portion 72 having a valley on the Y1 direction side, and a rack 56 is fixed on the X1 side and a rack 57 is fixed on the X2 side. The movable blade member 71 is supported by guide portions 51f and 51g formed on the flange portions 51b and 51c with the racks 56 and 57, and is movable in the Y1-Y2 direction. The movable blade member 71 and the fixed blade member 120 constitute the cutter 70. The cutter 70 is configured to be able to perform a three-point residual partial cut, a two-point partial partial cut, and a one-point partial partial cut. For this purpose, the movable blade member 71 has three notches 73, 74, and 75. Its shape will be described later. In the movable blade member 71, the gear train 54 meshes with the gear 58 that is supported by the shaft portion 52 a, the gear 60 that meshes with the gear 58 and is supported by the shaft 59 on the flange portion 51 b, and the gear 60. It has a pinion 61 and another pinion 62. The pinions 61 and 62 are fixed to both ends of a shaft member 63 that is horizontally mounted between the flange portions 51b and 51c on both sides, and mesh with the racks 56 and 57, respectively. A return spring 64 is supported by a shaft 59 between the gear 60 and the flange portion 51b. The movable blade member 71 is moved in the Y1 direction by the return spring 64 and is drawn into the second support member 51.

  The thermal line printer 10 is incorporated in the portable terminal device 20 as shown in FIGS. 4 (A), 4 (B) and FIG. The mobile terminal device 20 includes a chassis 21, a casing 22 that covers the chassis 21, an opening / closing lid 24 that is supported by the Y 1 side shaft 23, a Y 1 side roll paper storage unit 25, and an operation button 26 on the casing 22. And have. The first module 30 is fixed on the casing 22 at a position facing the roll paper storage unit 25. The second module 50 is fixed to the lower surface of the tip of the opening / closing lid 24.

  As shown by the two-dot chain line in FIG. 4B and FIG. 5, when the opening / closing lid 24 is opened, the thermal paper roll 80 is placed in the roll housing portion 25, and the opening / closing lid 24 is closed, the second module 50 becomes the second module 50. Combined with one module 30 is as shown in FIG. 4 (A) and FIG. That is, the shaft portions 52 a and 52 b of the platen roller 52 are engaged and locked with the platen roller lock members 41 and 42, the platen roller 52 presses the paper 81 against the thermal head 32, and the leading edge of the paper 81 is removed from the outlet 27. Out. Further, the cutter 70 is formed with the blade portion 72 of the movable blade member 71 facing the fixed blade portion 33b. Further, the gear 55 meshes with the small diameter gear 39, and the gear 58 meshes with the small diameter gear 40.

  The control circuit 140 controls driving of the thermal head 32 and the first and second pulse motors 35 and 36.

  In response to the print command, the thermal head 32 is driven to generate heat, and the motor 35 is driven to rotate the platen roller 52 via the first gear train 37 and the gear 55, so that the printed paper portion 82 moves the cutter 70. It passes through and is sent out from the outlet 27. The heat generated by the thermal head 32 is radiated through the thermal head support member 33. When printing is completed, the motor 36 is driven by the cutting command, and the racks 56 and 57 are driven via the second gear train 38, the gear train 54, and the pinions 61 and 62, and the movable blade member 71 is placed on both sides of the X1-X2. Are simultaneously driven and guided on both sides of X1-X2 by the guide portions 51f and 51g and slid in the Y2 direction. Thereafter, the motor 36 is driven in the reverse direction, and the movable blade member 71 is slid back in the Y1 direction. The printed paper portion 82 is cut.

  When the operation lever 43 is operated, the lock of the platen roller 52 with respect to the shaft portions 52a and 52b is released, the opening / closing lid 24 is opened, and the thermal paper roll is supplied.

  The structure of the cutter 70 described above can be applied to a printer other than the thermal line printer, and is not limited to the configuration provided integrally with the printer as described above, but also to a cutter as an independent device. Applicable.

[Configuration and Operation of Cutter 70]
Next, the configuration of the cutter 70 will be described.

  As shown in FIGS. 3A, 3 </ b> B, 3 </ b> C, 10, and 11, the movable blade member 71 faces the fixed blade member 120. As shown in FIG. 3B, the blade portion 72 of the movable blade member 71 has a V shape with a valley on the Y1 direction side. Therefore, when the movable blade member 71 is slid in the Y2 direction, The blade portion 72 is in contact with the blade portion 120a at two contact points, each in a point contact state, and a predetermined blade pressure is applied to the point contact point. Moves from both sides of X1-X2 toward the center. Therefore, the paper is smoothly cut by being applied with a good shearing force. Here, generation of blade pressure will be described. As shown in FIG. 11, the movable blade member 71 is limited in displacement in the Z1 direction by being guided by the top plate portion 51a on both sides of X1-X2. Therefore, the blade part 72 of the movable blade member 71 presses the blade part 120a in the Z2 direction and rubs in the Y2 direction. As a result, a force is applied to the fixed blade member 120 in the Z2 direction and the Y2 direction, and the fixed blade member 120 is slightly displaced in the Z2 direction by bending the leaf spring portions 121e, 121f, and 121g. The blade pressure F in the Z1 direction is generated by the spring force of the leaf spring portions 121e, 121f, and 121g.

  Further, as shown in FIGS. 12A and 13, the movable blade member 71 has a V-shaped blade portion 72 composed of a pair of oblique sides S1 and S2, and this V-shaped bottom portion. 3 has a third cutout 75, a first cutout 73 in the middle of the hypotenuse S1, and a second cutout 74 in the middle of the hypotenuse S2. The third notch 75 is substantially circular, and the first and second notches 73 and 74 are oval long in the Y1-Y2 direction.

  As shown in FIG. 13, the first notch 73 includes an entrance 73a whose width in the X1-X2 direction is W1-1, and an innermost edge 73b that is an end in the Y1 direction and located at the innermost end. , And the edge portions 73c and 73d between the innermost edge portion 73b and the entrance portion 73a. The edge portions 73c and 73d are shaped to expand in the X1-X2 direction as they are displaced from the entrance portion 73a in the Y1 direction. That is, the width W2-1 between the edge portions 73c and 73d is wider than the width W1-1 of the entrance portion 73a, and W2-1> W1-1.

  Similarly to the first notch 73 described above, the second notch 74 has an entrance 74a having a width W1-2, an innermost edge 74b, and an edge 74c having a width W2-2 therebetween. , 74d. Further, W2-2> W1-2.

  The third cutout 75 has an entrance 75a having a width W1-3, an innermost edge 75b, and edges 75c and 75d having a width W2-3 therebetween. Further, W2-3> W1-3.

  Look in the Y1-Y2 direction. YP2 is the position of the innermost edge 73b, YP3 is the position of the innermost edge 74b, YP4 is the position of the innermost edge 75b, and YP1 is a position slightly on the Y1 side from the entrance 75a of the third notch 75. . YP1 is located closest to Y2, YP2 is located closer to Y1 than YP1, YP3 is located closer to Y1 than YP2, and YP4 is located closer to Y1 than YP3. YP1, YP2, YP3, and YP4 are sequentially arranged in the Y1 direction. That is, the first, second, and third cutout portions 73, 74, and 75 have their innermost edge portions 73b to 75b displaced in the Y1-Y2 direction.

  YQ1 to YQ4 indicate the positions of the blade portions 120a of the fixed blade member 120 when the movable blade member 71 is taken as a reference. YQ2 is located between YP2 and YP3, YQ3 is located between YP3 and YP4, and YQ4 is located on the Y1 side from YP4. YQ1 is located on the Y2 side from YP1.

  The blade part 72 is demonstrated. The blade portion 72 includes a blade portion 72-1 on the X1 side of the first cutout portion 73, a blade portion 72-2 between the first cutout portion 73 and the third cutout portion 75, and The blade portion 72-3 is a portion between the second cutout portion 74 and the third cutout portion 75, and the blade portion 72-4 is a portion closer to the X2 side than the second cutout portion 74. The blade part 72-1 and the blade part 72-4 have shapes having vertical surfaces 72-1 a and 72-4 a as shown in FIGS. The blade portion 72-2 and the blade portion 72-3 have inclined surfaces 72-2a and 72-3a protruding in the Y2 direction on the Z1 side, as shown in FIGS. By this inclined surface 72-2a, the blade portion 72-2 has a wedge shape, and as shown in FIG. 12B, the blade portion 72-2 has an end on the X1 side, that is, the blade portion 72-2. Among them, a pointed portion 72-2b pointed in the Y2 direction is provided at a portion facing the entrance portion 73a. Due to the inclined surface 72-3a, the blade portion 72-3 has a wedge shape, and as shown in FIG. 12C, the blade portion 72-3 has an end on the X2 side, that is, the blade portion 72-3. Of these, a pointed portion 72-3b pointed in the Y2 direction is provided at a portion facing the entrance portion 73a. As will be described later, the pointed portions 72-2b and 72-3b are locations having a function of piercing the paper and starting the cutting of the paper again, and the restart of the cutting of the paper is smoothly started.

  Next, a state in which the cutter 70 operates and the operation of cutting the paper proceeds will be described.

  14A and 14B show a state before the operation starts. 15 to 21 show the position of the movable blade member 71 slid in the Y2 direction and the cutting state of the paper at that time. 15A to 21A show the position of the movable blade member 71 relative to the blade portion 120a of the fixed blade member 120, and FIGS. 15B to 21B show the progress of cutting with respect to the paper. . The movable blade member 71 is moved to YR4 via YR0-1, YR0-2, YR0-1, YR0-3, YR1, YR2, and YR3. Note that YR1, YR2, or YR3 is set as the final position of the movable blade member 71 in accordance with the command. YR1, YR2, YR3, and YR4 are positions corresponding to YQ1 to YQ4.

  14A and 14B show a state before the operation starts, the movable blade member 71 is located at YR0-0, and the paper 81 is not cut.

  When the movable blade member 71 starts moving in the Y2 direction, the blade portions 72-1 and 72-4 overlap the blade portion 120a of the fixed blade member 120, and the paper 81 starts to be cut from the X1 side and the X2 side. . When the movable blade member 71 is moved to YR0-1 as shown in FIG. 15A, the paper 82 is in the cut state shown in FIG. Reference numeral 86 denotes a cut portion.

  In a state where the movable blade member 71 has moved to YR0-2 as shown in FIG. 16A, the entrance portion 73a of the first cutout portion 73 and the entrance portion 74a of the second cutout portion 74 overlap with the blade portion 120a. Thus, the cutting of the sheet 81 is interrupted, and the first and second uncut portions 83 and 84 start to be formed on the sheet 81 as shown in FIG. About the part of the 1st notch part 73, it will be in the state shown expanded to FIG. 22 (B).

  In the state where the movable blade member 71 has moved to YR0-3 as shown in FIG. 17A, the blade portions 72-2 and 72-3 begin to overlap the blade portion 120a, and the cutting of the paper is resumed. B), the first and second uncut portions 83 and 84 are formed, and the X2 side end of the first uncut portion 83 and the X1 side of the second uncut portion 84 Paper cutting is resumed from the edge. About the part of the 1st notch part 73, it will be in the state shown in FIG.22 (C).

  Here, the resumption of the cutting of the paper starts from a portion that is not the edge of the paper, that is, the surface of the paper. However, when the sharp portions 72-2b and 72-3b pierce the paper, The resumption of cutting starts smoothly. Even after the cutter 70 has been used for a long period of time, the resumption of cutting of the paper is smoothly started. Further, the restarted cutting of the paper is performed by a shearing force by moving the point contact point where the blade pressure is applied, as in the case shown in FIG. Therefore, it is difficult to generate paper chips and is hygienic, and is suitable for use in a kitchen, for example.

  In the state where the movable blade member 71 has moved to YR1 as shown in FIG. 18A, the blade portions 72-2 and 72-3 pass through the blade portion 120a, and the third notch portion 75 overlaps the blade portion 120a. Thus, a third uncut portion 85 is formed on the paper 81 as shown in FIG. The sheet 81 is cut in a state in which the third uncut portion 85 is formed at the upper center in the width direction and the first and second uncut portions 83 and 84 are formed on both sides, that is, three points remain. Partial cut state. About the part of the 1st notch part 73, it will be in the state shown in FIG.22 (D).

  In a state where the movable blade member 71 has moved to YR2 as shown in FIG. 19A, the entire first notch 73 is on the blade 120a as shown in FIGS. 22E and 22F. The innermost edge portion 73b of the first cutout portion 73 functions as a movable blade to cut the first uncut portion 83, and the paper 81 is a third one as shown in FIG. It is in a state where it is cut in a state where the left uncut portion 85 and the second uncut portion 84 are formed, that is, a two-point left partial cut state.

  In a state where the movable blade member 71 has moved to YR3 as shown in FIG. 20A, the entire second notch 74 reaches the blade 120a, and the innermost edge 74b of the second notch 74 is obtained. Functions as a movable blade to cut the second uncut portion 84, and the paper 81 was cut in a state where only the third uncut portion 85 is formed as shown in FIG. The state, that is, the partial cut state with one point remaining.

  In the state where the movable blade member 71 has moved to the final YR4 as shown in FIG. 21A, the entire third notch 75 reaches the fixed blade 33b, and the innermost part of the third notch 75 is reached. The edge portion 75b functions as a movable blade to cut the third uncut portion 85, and the paper 81 is in a full cut state as shown in FIG. 21B, and the printed paper portion 82 is cut. .

  Due to the presence of the pointed portions 72-2b and 72-3b, the cutter 70 capable of partial cutting leaving three points has a long life.

  Here, by appropriately setting the program of the microcomputer, the drive of the second pulse motor 36 is freely controlled so that the movable blade member 71 moves to YR1 and returns, or moves to YR2. It is possible to make a return or move to YR3 and return.

  When the movable blade member 71 moves to YR1 and returns, the paper 81 is in a partial cut state with three points remaining as shown in FIG. When the movable blade member 71 moves to YR2 and returns, the paper 81 is left in a partial cut state as shown in FIG. 19B. When the movable blade member 71 moves to YR3 and returns, the paper 81 is left in a partial cut state as shown in FIG. 20B. The printed paper portion 82 is separated from the paper 81 by pulling away the printed paper portion 82.

  In the case of the three-point remaining partial cut or the two-point left partial cut, the connection of the printed paper portion 82 to the paper 81 is a portion that is separated in the width direction of the paper 81 and at a plurality of locations. Therefore, even if a strong wind is applied, the printed paper portion 82 does not rotate and turn over. Therefore, the mobile terminal device 20 is suitable for use in a kitchen or the like in a situation where a strong wind of a fan is hit, for example, to print the contents of an order menu. In the case of partial cut with one point left, when a strong wind hits, the printed paper part rotates around the uncut part and turns over, making it impossible for the cook to read the order menu. Although there is a fear, this is not the case in the case of a partial cut with three points remaining or a partial cut with two points left.

  Next, the relationship between the 1st notch part 73 and the formed 1st uncut part 83 is demonstrated.

  As shown in FIGS. 22B to 22D, the first notch 73 is moved in the Y2 direction with respect to the formed first uncut part 83, and the first uncut part 83 is the first uncut part 83. It will be in the state which enters the inside of the notch part 73 of this.

  As shown in FIGS. 13 and 22A, in the first cutout portion 73, the edge portions 73c and 73d are shaped to expand in the X1-X2 direction as they are displaced in the Y1 direction from the entrance portion 73a.

  Therefore, the edge portion 73c is separated from the X1 side edge 83a of the formed first uncut portion 83 to the X1 side, and the edge portion 73d is moved from the X2 side edge 83b of the first uncut portion 83 to the X2 side. The edge portions 73c and 73d are not rubbed against the first uncut portion 83, and no force in the Y2 direction acts on the first uncut portion 83. Therefore, no unnecessary force is generated on the paper 81 to twist it.

  This also applies to the relationship between the second notch 74 and the formed second uncut portion 84, and no force in the Y2 direction acts on the second uncut portion 84 as well. The same applies to the relationship between the third notch 75 and the third uncut part 85 formed, and no force in the Y2 direction acts on the third uncut part 85.

  Therefore, the cutting of the paper 81 is performed without applying unnecessary force to the paper 81 to twist it.

  Moreover, since the 1st notch part 73 is the curved shape in which the innermost edge part 73b, edge part 73c, 73d, and the innermost edge part 73b do not have a bending point, the 1st notch part 73 of the 1st notch part 73 is cut. The point where the edge comes into contact with the fixed blade 33b is smoothly moved, and the lock of the edge of the first notch 73 engaging the fixed blade 33b does not occur. Similarly, with respect to the second cutout portion 74 and the fourth cutout portion 75, the movement of the point where the edge comes into contact with the fixed blade portion 33b is performed smoothly, and the edges of the second and third cutout portions 74 and 75 are smoothed. The lock that the portion engages with the fixed blade portion 33b does not occur.

[Modification of movable blade member 71]
Next, a modified example of the movable blade member 71 will be described.

  23 and 24 show a movable blade member 71A according to a first modification. In each figure, the same reference numerals are given to the components corresponding to those shown in FIGS. The movable blade member 71A has a first cutout 73A, a second cutout 74A, and a third cutout 75A. The first cutout portion 73A includes a slit 90 and a tongue-like blade portion 91 at the back. The second cutout portion 74A includes a slit 100 and a tongue-like blade portion 101 at the back. The third cutout portion 75A includes a slit 110 and a tongue-like blade portion 111 at the back. Of the portions facing the entrances of the first and second cutout portions 73A and 74A, pointed portions 72A-2b and 72A-3b are formed on the center side of the movable blade member 71A. Further, the slits 90, 100, and 110 have a tapered shape in which the width on the back side is slightly wider than the width of the entrance. The tongue-shaped blade portions 91, 101, and 111 correspond to the innermost edge portions 73b, 74b, and 75b, and are arranged in an arrangement corresponding to the innermost edge portions 73b, 74b, and 75b. As shown in FIGS. 23 (D), (E), and (F), the tongue-like blade portions 91, 101, and 111 are inclined by β in the Z2 direction, and the Y91 side edges 91a, 101a, and 111a are It is slightly inclined toward the Y1 side. Therefore, the tongue-shaped blade portions 91, 101, 111 and the fixed blade portion are in point contact, and the point contact location moves, and the uncut portions 83, 84, 85 have their widths. Cutting is started from one side in the direction and cut.

  Further, the portion 92 on the X2 side of the slit 90 in the movable blade member 71A, that is, the portion on the center side of the movable blade member 71A from the slit 90 is a slit in the movable blade member 71A as shown in FIG. The portion 102 on the X1 side of 100, that is, the portion on the center side of the movable blade member 71A from the slit 100 is both inclined by γ in the Z1 direction, as shown in FIG. Therefore, while the movable blade member 71A is slid in the Y2 direction, the end portions of the blade portions 72A-2 and 72A-3 smoothly ride on the blade portion of the fixed blade member, and the point of the blade portion of the fixed blade member The operation in which the blade portion of the movable blade member that is in contact changes from the blade portion 72A-1 to the blade portion 72A-2, and the operation in which the blade portion 72A-4 changes to the blade portion 72A-3 does not cause a locked-in lock. It is done smoothly.

  FIG. 25A shows a movable blade member 71B according to a second modification. The shape of the portions 92 and 102 of the movable blade member 71B is different from that of the movable blade member 71A. As shown in FIGS. 25B and 25C, the portions 92 and 102 have inclined surfaces 93 and 103 on their Z2 side surfaces. With this configuration, the operation of changing from the blade portion 72B-1 to the blade portion 72B-2 and the operation of changing from the blade portion 72B-4 to the blade portion 72B-3 are smoothly performed without causing a lock.

  FIG. 26 shows a movable blade member 71C according to a third modification. The movable blade member 71C is different from the movable blade member 71A in the number of notches and has five notches. The numbers of the cutout portions are given in the order in which the formed uncut portions are cut. A V-shaped bottom portion, that is, a fifth notch 75C is provided at the center, and the first notch 73C-1 and the third notch 73C-2 are provided in the middle of the hypotenuse S1. And has a second notch 74C-1 and a fourth notch 74C-2 in the middle of the hypotenuse S2. The first and second cutouts 73C-1 and 74C-1 are located on both sides of the fifth cutout 75C, and the third and fourth cutouts 73C-2 and 74C-2 are the first and second cutouts, respectively. Are located outside of the cutout portions 73C-1 and 74C-1. YP10 is the position of the entrance of the fifth notch 75C, YP11 is the position of the innermost part of the first notch 73C-1, YP12 is the position of the innermost part of the second notch 74C-1, and YP13 is The position of the innermost part of the third notch 73C-2, YP14 is the position of the innermost part of the fourth notch 74C-2, YP14 is the position of the innermost part of the fifth notch 75C, and Y2 They are lined up sequentially in the Y1 direction from the side. YQ10 to YQ15 indicate the positions of the blade portions 120a when viewed from the movable blade member 71C, and are slightly located on the Y1 side from YP10 to YP15, respectively.

  When the movable blade member 71C is slid in the Y2 direction and the relative position of the blade portion 120a of the fixed blade member 120 to the movable blade member 71C moves to reach YQ10, the sheet 81 is moved from both sides in the width direction. A portion indicated by reference numeral 86 is cut, and after passing through the states shown in FIGS. 27A, 27B, and 27C, as shown in FIG. 27D, the first to fifth uncut portions 83-1. , 84-1, 83-2, 84-2, and 85 are left in a partial cut state.

  When the movable blade member 71 further slides and the relative position of the blade portion 120a with respect to the movable blade member 71 reaches YQ11, the innermost edge portion of the first cutout portion 73C-1 is the first uncut portion 83. -1 is cut, and the paper 81 is in a partial cut state with four points remaining as shown in FIG.

  When YQ12 is reached, the innermost edge portion of the second cutout portion 74C-1 cuts the second uncut portion 84-1, and the paper 81 has a three-point left partial cut shown in FIG. It becomes a state. When YQ13 is reached, the innermost edge of the third cutout portion 73C-2 cuts the third uncut portion 83-2, and the paper 81 is left with a two-point partial cut shown in FIG. It becomes a state. When YQ14 is reached, the innermost edge portion of the fourth cutout portion 74C-2 cuts the fourth uncut portion 84-2, and the paper 81 is the fifth as shown in FIG. It will be in the partial cut state in which one point remains connected only by the uncut part 83-1. When YQ15 is reached, the innermost edge portion of the fifth cutout portion 75C cuts the fifth uncut portion 85 to be in a full cut state.

  The cutting order of the first to fifth uncut portions 83-1, 84-1, 83-2, 84-2, and 85 is cut alternately from the left and the right from the portion close to the uncut portion 85 at the center. After the uncut portions on both sides in the width direction of 81 are cut, the uncut portion 85 at the center is finally cut. In other words, the plurality of uncut portions are cut off from the uncut portion close to the center with a good left-right balance, so that the phenomenon in which the sheet 82 to be separated is rotated so as to be twisted with respect to the center line of the strip-shaped sheet 81 does not occur. The cutting is smoothly performed.

  Next, specific usage examples of the thermal printer 10 and the cutter 70 will be described. The control circuit 140 is programmed with a predetermined program corresponding to the usage example, and the thermal printer 10 and the cutter 70 operate according to the predetermined program.

[When printing with credit card]
The thermal printer 10 and the cutter 70 are controlled by the control circuit 140, and (1) customer copy printing, (2) first partial cut, (3) store copy printing, (4) second partial cut, A series of operations consisting of (5) journal recording and (6) third partial cut is performed as a single operation.

  The first partial cut and the second partial cut perform a partial cut leaving three points, and the third partial cut performs a partial cut leaving one point.

  FIG. 28 shows a set of triple printing units 200 formed by the above operation.

  201 is a customer record, 202 is a store record, and 203 is a journal record. 210 is a partial cut part with three points left, 211 is a partial cut part with three points left, and 212 is a partial cut part with one point left. After the triple printing unit 200 is formed, the operator manually cuts the triple printing unit 200 from the paper 81.

  Here, if there are also three remaining partial cut portions between the journal record 203 and the paper 81, since the joint strength of the three partial cut portions is equal, the cut is made when the customer copy 201 is pulled. There is no guarantee that the location will be between the journal record 203 and the paper 81, and the store copy 202 and the journal record 203 may be disconnected. Therefore, the operator must always pinch the journal record 203, which is troublesome.

  However, as described above, when the last part is left as a partial cut part 212, the joint strength of the partial cut part 212 leaving one point is weaker than the joint strength of the partial cuts 210 and 211 leaving three points. However, any part of the triple printing unit 200 is pinched and always cut at the partial cut unit 212, and the triple printing unit 200 is cut from the paper 81, so that the operability is good.

[For continuous printing of receipts and coupons]
The thermal printer 10 and the cutter 70 are controlled by the control circuit 140 and are a series of (1) receipt printing, (2) first partial cut, (3) coupon printing, and (4) second partial cut. Are performed as a single operation.

  The first partial cut performs a partial cut leaving three points, and the second partial cut performs a partial cut leaving one point.

  FIG. 29 shows a set of duplex printing units 220 formed by the above operation. 221 is a receipt and 202 is a coupon. Reference numeral 230 denotes a three-point remaining partial cut portion, and reference numeral 231 denotes a one-point remaining partial cut portion. After the duplex printing unit 220 is formed, the operator manually cuts the duplex printing unit 220 from the paper 81.

[In the case of group ticket issuance]
When the portable terminal device 20 shown in FIGS. 4A and 4B is used as a group ticket issuing machine, the control circuit 140 performs the operation shown in FIG.

  First, information relating to the number n of tickets for one person and the number m of people constituting the group specified by operating the operation button 26 of the portable terminal device 20 is fetched (ST1).

  Next, M is set to 1 (ST2), and N is set to 1 (ST3).

  Next, printing is instructed (ST4).

  Next, it is determined whether or not N = n (ST5). If the determination result is NO, disconnect 1 is instructed (ST6), then 1 is added to N (ST7), and again Printing is instructed (ST4).

  If the determination result in ST5 is YES, it is determined whether M = m (ST8).

  If the determination result in ST8 is NO, disconnect 2 is commanded (ST9), then 1 is added to M (ST10), and N is set to 1 again (ST3).

  If the determination result in ST8 is YES, disconnection 3 is commanded (ST11).

  Here, in cutting 1 (ST6), the pulse motor 36 is supplied with as many pulses as the movable blade member 71 is moved to YR1 as shown in FIG. In cutting 2 (ST9), the pulse motor 36 is supplied with pulses of the same number as the movable blade member 71 is moved to YR3 as shown in FIG. In the cutting 3 (ST11), the pulse motor 36 is supplied with pulses of the number corresponding to the movable blade member 71 being moved to YR4 as shown in FIG.

  When issuing a group ticket for four persons, that is, when n = 1 and m = 4, the thermal printer 10 and the cutter 70 are controlled by the control circuit 140 while (1) the first person (2) the first partial cut, (3) the second person's ticket print, (4) the second partial cut, (5) the third person's ticket A series of operations including printing, (6) third partial cut, (7) fourth ticket printing, and (8) full cut are performed as a single operation.

  FIG. 31 shows a group ticket 240 for four people formed by the above-described operation and consisting of a set of quadruple printing sections. 241 is a ticket for the first person, 242 is a ticket for the second person, 243 is a ticket for the third person, and 244 is a ticket for the fourth person. Reference numerals 250, 251, and 252 denote partial cut portions leaving three points, and reference numeral 253 denotes a full cut portion. The group ticket 240 is fully cut and automatically separated from the paper 81 so as not to be connected to another group ticket.

  When issuing a group ticket for four people consisting of two tickets per person, that is, when n = 2 and m = 4, the thermal printer 10 and the cutter 70 are controlled by the control circuit 140. On the other hand, the following series of operations (1) to (15) are performed as a single operation. FIG. 32 shows a group ticket 260 for four persons formed by this operation and made up of a set of eight consecutive printing sections.

  Operation (1) is the printing of the first ticket for the first person, and the ticket 271 is formed. The operation (2) is a first partial cut, and a partial cut portion 280 is formed, leaving three points. Operation (3) is the printing of the second ticket for the first person, and the ticket 271 is formed. The operation (4) is the second partial cut, and the partial cut portion 281 is formed by leaving one point. Operation (5) is the printing of the first ticket for the second person, and the ticket 273 is formed. The operation (6) is a third partial cut, and a partial cut portion 282 is formed by leaving three points. Operation (7) is the printing of the second ticket for the second person, and the ticket 274 is formed. The operation (8) is the fourth partial cut, and the partial cut portion 283 is formed by leaving one point. Operation (9) is the printing of the first ticket for the third person, and the ticket 275 is formed. Operation (10) The fifth partial cut is made, and a partial cut portion 284 is formed with three points remaining. Operation (11) is the printing of the second ticket for the third person, and the ticket 276 is formed. The operation (12) is the sixth partial cut, and the partial cut portion 285 is formed leaving one point. Operation (13) is the printing of the first ticket for the fourth person, and the ticket 277 is formed. The operation (14) is a seventh partial cut, and a partial cut portion 286 leaving three points is formed. Operation (15) is printing of the second ticket for the fourth person and the ticket 278 is formed. The last operation (16) is a full cut, a full cut 287 is formed, and the group ticket 260 for four people consisting of a set of eight-printing sections is automatically separated from the paper 81.

  A group ticket 260 for four people includes a two-ticket ticket 261 for the first person, a double-ticket ticket 262 for the second person, a double-ticket ticket 263 for the third person, It consists of a ticket 264 with a double spell for the fourth person. Whereas each second person's two-split tickets are connected by a partial cut part leaving three points, between each second person's two-split tickets 261 to 264, a one-point remaining partial cut part 281 Since it is 283 and 285, it is easy to separate the two-split tickets 261 to 264 for each person.

In the case of the configuration provided with the movable blade member 71C shown in FIG. 26, the cut 1 is a five-point partial cut shown in FIG. 27 (D), and the cut 2 is a three-point left partial shown in FIG. 27 (F). Cut and cut 3 can be set to the full cut state shown in FIG.
[Example 2]
33 and 34 show a thermal printer 10A provided with a cutter 70A according to the second embodiment of the present invention. 36A, 36B, and 36C schematically show a thermal printer 10A.

  The thermal printer 10A has a configuration in which the second module 50 shown in FIG. 7 is detachably connected to the first module 30A shown in FIG. 35, and the cutter 70A is connected to the first module 30A in a state where the second module 50 is connected to the first module 30A. Is formed.

  The first module 30A is different from the first module 30 shown in FIG. 6 in that the fixed blade portion 33Ab is formed on a part of the thermal head support member 33A. The fixed blade portion 33Ab is formed to protrude in the Y1 direction at the Z1 end of the thermal head support member 33A made of a metal plate. The fixed blade portion 33Ab is slightly curved convexly in the Z1 direction as shown in FIG. A leaf spring piece 34Aa formed integrally with the above-described leaf spring member 34A enters the support portion 31a, and the Z2 end portion 33Aa is supported by the leaf spring piece 34Aa. Therefore, the fixed blade portion 33Ab can be displaced in the Y1-Y2 direction and the Z1-Z2 direction within a narrow range. When the fixed blade portion 33Ab is displaced in the Y2 direction, the blade in the Y1 direction is moved by the spring force of the leaf spring member 34A. When the pressure F1 is generated and displaced so as to sink in the Z2 direction, the blade pressure F2 in the Z1 direction is generated by the spring force of the leaf spring piece 34Aa.

  As shown in FIGS. 37 and 38, the fixed blade portion 33Ab and the movable blade member 71 constitute a cutter 70A. As with the cutter 70 described above, the cutter 70A can perform three-point residual partial cut, two-point residual partial cut, and one-point residual partial cut.

  The fixed blade portion 33Ab is a part of the thermal head support member 33A, and the cutter 70A does not have a fixed blade member that is an independent component. Therefore, the thermal line printer 10A has a smaller number of parts than the thermal line printer 10 of FIG. 1, the dimensions in the Z1-Z2 direction are shortened, and the height is reduced and the weight is reduced. .

[Movable blade member replaceable structure]
As shown in FIGS. 39 and 40, the movable blade member is attached so that the user of the mobile terminal device 20 can replace it with a simple operation. As shown in FIGS. 39A, 39B, and 39C, reference numeral 300 denotes a movable blade support plate for reinforcement, which has a shape corresponding to the movable blade member, and faces Z2 on the X1-X2 side on the Y2 side. Locking pins 301 and 302 protrude from the end. Racks 56A and 57A are fixed on the X1-X2 side of the movable blade support plate 300. As shown in FIG. 39 (C), the racks 56A and 57A have support portions 56Ab and 57Ab projecting inside thereof, and gap portions 303 and 304 are provided between the support portions 56Ab and 57Ab and the movable blade support plate 300. Is formed.

  As shown in FIG. 39A, the movable blade member 71D has substantially the same shape as the movable blade member 71 shown in FIG. 9, and has locking holes 71Da and 71Db on the X1-X2 side on the side of the bow Y2. The locking pins 301 and 302 and the locking holes 71Da and 71Db constitute a movable blade locking mechanism.

  As shown in FIGS. 39B and 39C, the movable blade member 71D is supported by the support portions 56Ab and 57Ab by inserting the Y1-side X1-X2 side portions 71Dc and 71Dd into the gap portions 303 and 304, respectively. Further, the locking holes 71Da and 71Db are fitted to the locking pins 301 and 302, that is, the four corners are locked and attached to the lower surface of the movable blade support plate 300.

  A movable blade support plate 300 that supports the movable blade member 71D is incorporated on the lower surface side of the top plate portion 51a of the second support member 51 as shown in FIG. The movable blade member 71D contacts the fixed blade member 120. The motor 36 slides the movable blade support plate 300, and the movable blade member 71D is slid integrally with the movable blade support plate 300 to cut the paper.

  When the blade portion of the movable blade member 71D is worn out and the sharpness is lowered, the movable blade member 71D is replaced by the user of the mobile terminal device 20. First, as shown in FIG. 40 (B), the opening / closing lid 24 of the portable terminal device 20 is opened, and the gear 60 is rotated by the fingertip, and the movable blade support plate 300 is moved in the Y2 direction as shown in FIG. 40 (C). As shown in FIG. 40D, the portions where the movable locking holes 71Da and 71Db are fitted to the locking pins 301 and 302 are exposed to the outside of the second support member 51, and this state is maintained. As shown, the tip side of the movable blade support plate 300 is pushed up in the Z1 direction and the tip side of the movable blade member 71D is pushed down in the Z2 direction to remove the locking holes 71Da and 71Db from the locking pins 301 and 302, respectively. The tip end side of the member 71D is pulled in the Y2 direction. Accordingly, the movable blade member 71D is pulled out from the lower surface of the movable blade support plate 300 and removed. A new movable blade member is attached to the lower surface of the movable blade support plate 300 in place of the old movable blade member. The attachment work may be performed in the reverse order of the above removal.

  The object to be cut by the cutter of the present invention is not limited to paper, but may be a synthetic resin sheet, metal foil or the like, and “paper” in the claims includes a synthetic resin sheet, metal foil or the like.

  For example, the present invention can be applied to a device that issues a group ticket including a plurality of tickets.

It is a perspective view which shows the thermal printer provided with the cutter which becomes Example 1 of this invention. It is a side view of the thermal printer of FIG. It is the schematic of the thermal printer of FIG. It is a figure which shows the portable terminal device with which the thermal printer of FIG. 1 was integrated. It is a figure which shows the structure of the printer part of the portable terminal device of FIG. It is a perspective view which shows a 1st module. It is a perspective view which decomposes | disassembles and shows a fixed blade member and a supporting member in FIG. It is a perspective view which shows a 2nd module. It is a disassembled perspective view of a 2nd module. It is a figure which shows a cutter. It is a side view of a cutter. It is a figure which expands and shows a movable blade member and its part. It is a top view of a movable blade member. It is a figure which shows the state before the operation | movement of a cutter. It is a figure which shows that a movable blade member starts a slide and a cutting | disconnection is started. It is a figure which shows that the movable blade member further slid and the cutting was interrupted. It is a figure which shows that the movable blade member further slid and cutting was resumed. It is a figure which shows that the movable blade member was further slid into a partial cut state with three points remaining. It is a figure which shows that the movable blade member was further slid to be in a partial cut state with two points remaining. It is a figure which shows that the movable blade member was further slid to be in a partial cut state with one point remaining. It is a figure which shows that a movable blade member further slid and was in the full cut state. It is a figure which shows the operation | movement which the 1st notch part forms the 1st uncut part, and also cut | disconnects this. It is a figure which shows the 1st modification of a movable blade member. It is a top view of the movable blade member of FIG. It is a figure which shows the 2nd modification of a movable blade member. It is a figure which shows the 3rd modification of a movable blade member. It is a figure which shows the paper cutting state of the cutter provided with the movable blade member of FIG. It is a figure which shows the example of printing and cutting | disconnection of credit payment. It is a figure which shows the continuous printing and cutting example of a receipt and a coupon. It is a flowchart of operation | movement of a control circuit. It is a figure which shows the example of printing and a cutting | disconnection in the case of group ticket issuing for 4 persons. It is a figure which shows the example of printing and a cutting | disconnection in the case of the group ticket issuance for four persons who spell two sheets per person. It is a perspective view which shows the thermal printer provided with the cutter which becomes Example 2 of this invention. It is a side view of the thermal printer of FIG. It is a perspective view which shows a 1st module. It is the schematic of the thermal printer of FIG. It is a figure which shows a cutter. It is a side view of a cutter. It is a figure which shows a movable blade member exchangeable structure. It is a figure explaining exchange of a movable blade member.

Explanation of symbols

10, 10A thermal printer 20 portable terminal device 24 open / close lid 30, 30A-30F first module 32 thermal head 33, 33A thermal head support member 33Ab fixed blade portion 34 head pressure biasing plate spring member 35 first pulse motor 36 first Second pulse motor 37 First gear train 38 Second gear train 50, 50A Second module 70, 70A Cutter 71, 71A, 71B, 71C Movable blade member 72 V-shaped blade portion 73, 74, 75 Notch 72-2b, 72-3b Pointed portion 92, 102 Inclined portion 93, 103 Inclined surface 120 Fixed blade member 130 Photo interrupter 140 Control circuit

Claims (9)

A fixed blade,
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. A movable blade,
A movable blade moving mechanism for sliding the movable blade,
When the movable blade moves in a direction overlapping the fixed blade to cut the paper, the portion where the blade portion of the movable blade hits the blade portion of the fixed blade moves from both sides of the movable blade toward the center, In a cutter that is configured to perform cutting with multiple points, cutting with one point remaining, and full cut according to the moving position of the movable blade,
The cutter according to claim 1, wherein the notched portion of each oblique side of the movable blade has a pointed pointed portion at a portion of the entrance near the center of the movable blade. A fixed blade;
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. And a movable blade located on the upper surface side of the fixed blade;
A movable blade moving mechanism for sliding the movable blade,
When the movable blade moves in a direction overlapping the fixed blade to cut the paper, the portion where the blade portion of the movable blade hits the blade portion of the fixed blade moves from both sides of the movable blade toward the center, In a cutter that is configured to perform cutting with multiple points, cutting with one point remaining, and full cut according to the moving position of the movable blade,
The notch portion of each hypotenuse of the movable blade has a pointed pointed portion in the portion near the center of the movable blade among its entrance,
The cutter is characterized in that the pointed portion is warped in the direction of the upper surface of the movable blade. A fixed blade;
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. And a movable blade located on the upper surface side of the fixed blade;
A movable blade moving mechanism for sliding the movable blade,
When the movable blade moves in a direction overlapping the fixed blade to cut the paper, the portion where the blade portion of the movable blade hits the blade portion of the fixed blade moves from both sides of the movable blade toward the center, In a cutter that is configured to perform cutting with multiple points, cutting with one point remaining, and full cut according to the moving position of the movable blade,
The notch portion of each oblique side portion of the movable blade has an inclined surface that faces the entrance and has an inclined surface inclined upward toward the entrance on the lower surface of the portion closer to the center of the movable blade than the entrance. A cutter characterized by that. A fixed blade;
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. A movable blade,
A movable blade moving mechanism for sliding the movable blade,
When the movable blade moves in a direction overlapping the fixed blade to cut the paper, the portion where the blade portion of the movable blade hits the blade portion of the fixed blade moves from both sides of the movable blade toward the center, In a cutter that is configured to perform cutting with multiple points, cutting with one point remaining, and full cut according to the moving position of the movable blade,
The cutter according to claim 1, wherein a cutout portion of each oblique side of the movable blade has a shape wider on the back side than the width of the entrance portion. The cutter of claim 4,
The cutter according to claim 1, wherein the cutout portion of each hypotenuse of the movable blade has a shape in which the edge is curved. A fixed blade;
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. And each notch is a movable blade having an uncut portion cutting blade for cutting the uncut portion at the back,
A movable blade moving mechanism for slidingly moving the movable blade;
And a control means for controlling the moving position of the movable blade to be a desired position.
When the movable blade moves in a direction overlapping the fixed blade to cut paper, the portion of the movable blade that contacts the blade portion of the fixed blade moves from both sides toward the center,
In a cutter that is configured to perform cutting with multiple points, cutting with one point remaining, and full cut according to the moving position of the movable blade,
The cutter is characterized in that the movable blade has a configuration in which the uncut portion cutting blade portion at the back of each notch portion of each oblique side portion is arranged so as to be shifted in the sliding direction of the movable blade. The cutter according to claim 6, wherein
Each notch portion of each oblique side portion of the movable blade has a configuration in which the uncut portion cutting blade portion is alternately shifted from the notch portions on both sides in the width direction of the movable blade. Cutter to do. A fixed blade;
The blade portion is substantially V-shaped consisting of a pair of hypotenuses, has a notch portion that forms the last uncut portion at the bottom of the valley, and has a notch portion that forms the uncut portion at each hypotenuse portion. And each notch is a movable blade having an uncut portion cutting blade for cutting the uncut portion at the back,
A movable blade moving mechanism for sliding the movable blade,
When the movable blade moves in a direction overlapping the fixed blade to cut the sheet, the portion where the blade portion of the movable blade hits the blade portion of the fixed blade moves from both sides of the movable blade toward the center. It is a configuration that performs cutting with multiple points, cutting with one point remaining, and full cutting.
In the cutter provided in the printer,
Control means for controlling the movement position of the movable blade by controlling the operation of the movable blade movement mechanism in association with the printing operation of the printer;
The cutter is configured to control the moving position of the movable blade so that cutting with different numbers of uncut portions is performed during a series of printing operations. The cutter according to any one of claims 1, 2, 3, 6, and 8,
The movable blade is locked and supported, and further includes a movable blade support plate that is moved by the movable blade moving mechanism.
A cutter characterized in that the movable blade is unlocked with respect to the movable blade support plate when the movable support plate is moved.

Images