JPH0585646U - Cutting device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cutting device having a simple structure and easy to assemble. [Structure] A fixed blade 55a of a cutter 55 is provided in a fixed portion 55c fixed to a frame with a screw 56, and an arm portion 55d is provided in the fixed portion 55c. The movable blade 55b is provided on a movable portion 55e that receives a force from the cutter lever 57 in the Z direction, and the movable portion 55e is provided with an arm 55f. The arm portion 55d and the arm portion 55f are integrally formed via a curved elastic portion 55g. The tape is cut by pressing the movable blade 55b against the fixed blade 55a by the cutter lever 57.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutting device for cutting a print medium.

[0002]

[Prior Art]

 Conventionally, this type of cutting device has been described in Japanese Utility Model Laid-Open No. 61-102543, and its schematic configuration will be described below.

As shown in FIG. 9, on the front surface of the main body case 101, a keyboard 103 in which a large number of operation keys 102 are arranged and a display unit 104 are provided. Then, on the upper surface of the main body case 101, a supply shaft 106 that holds and supplies a label paper (not shown) wound in a roll shape and a winding shaft that winds a label paper mount (not shown). 108, a printer 110 for printing a label (not shown) attached to a mount, and a cutting unit 111 provided in proximity to the printer 110.

As shown in FIG. 10, the cutting unit 111 is rotatably attached to a column 115 that is erected on a base 114 fixed to the main body case 101.

A hinge portion 118 having a shaft hole 117 that fits into the support 115 is formed on the substrate 116 of the cutting unit 111, and a hole 120 for forming a paper passage 119 is formed on the substrate 116. A guide plate 122 having a guide surface 121 is formed from the outside of the formed hole 120. Further, compression springs 125 and 126, which are elastic bodies, are attached to the upper support shaft 123 and the lower support shaft 124, respectively, on the inner surface of the base plate 116, and the cutting blade 127 is axially movable outwardly thereof. It is installed. One side edge of the cutting blade 127 is a linear cutting blade 128.

Further, a shaft hole 130 formed in a bent portion of an L-shaped rotary blade 129 is rotatably fitted to the upper support shaft 123, and is biased in one direction by a tension spring 131. Has been done. The rotary blade 129 is formed with a linear blade portion 132 that comes into contact with the cutting blade 128. Further, a protruding piece 133 for hanging a finger is formed on the other end of the rotary blade 129.

Next, a cover 134 attached to the back surface of the substrate 116 is provided, and a hinge portion 136 having a shaft hole 135 that fits into the column 115 is formed in the cover 134. A linear edge 137 is formed on the cover 134. Further, a guide plate 138 that forms a paper passage 119 together with the straight edge 137 of the cover 134 is formed on the substrate 116. A guide piece 139 for guiding the label sheet is bent and formed on the guide plate 138, and a protruding piece 141 for rotatably holding the locking button 140 is formed on the lower outer side. Further, the base 114 is formed with a projecting piece 142 which is joined to the projecting piece 141, and the projecting piece 142 is formed with an engagement hole 143 with which the locking button 140 is engaged.

In such a configuration, the label paper enters the printer 110 from the supply shaft 106, and is wound around the winding shaft 108 via the cutting unit 111. Then, the printer 110 prints necessary items on the label 109 and sequentially feeds the label paper to print the required number of sheets. When the printing is completed, a finger is put on the protrusion 33 to rotate the rotary blade 129. As a result, the blade portion 132 sequentially joins the cutting blade 128 from above to below in a point contact state to cut the label sheet.

The label paper cut in this way is taken out and taken out together with the holder fitted to the winding shaft 108.

[0010]

[Problems to be solved by the device]

 However, in the above-described cutting unit 111, the upper support shaft 123 and the lower support shaft 124 are attached to the substrate 116, and the cutting blade 127 is supported by the upper support shaft 123 and the lower support shaft 124 to rotate. The blade 129 is rotatably supported by the upper support shaft 123, and the rotary blade 129 is biased by the tension spring 131 in a direction away from the cutting blade 127. There is a problem that the number of parts to be manufactured is large and the cost is high.

Further, there is a problem that the structure of the cutting unit 111 is complicated and it takes time to assemble.

The present invention has been made to solve the above problems, and an object thereof is to provide a cutting device having a simple structure and easy to assemble.

[0013]

[Means for Solving the Problems]

 In order to achieve this object, according to the present invention, a fixed blade fixed to the housing of a printing device for printing on a print medium and a reciprocating movable blade substantially perpendicular to the printing surface of the print medium are provided on the housing. A cutting device comprising a movable blade that is supported and that cuts a print medium in cooperation with the fixed blade, wherein a fixed blade arm extending from the fixed blade and a movable blade arm extending from the movable blade are provided. Are integrally formed through a curved or bent elastic member.

The cutting device further includes drive means for driving the movable blade back and forth substantially perpendicularly to the printing surface of the print medium.

[0015]

[Action]

 In the cutting device of the present invention having the above structure, the driving means cuts the print medium by reciprocally driving the movable blade against the elastic force of the elastic member substantially perpendicularly to the printing surface of the print medium. To do.

[0016]

【Example】

 An embodiment in which the present invention is used in a tape copying apparatus will be described below with reference to the drawings. Here, the tape copying device is a device that reproduces the image read by the image reading unit on a tape that is a print medium.

This device is mainly used for acts such as making a tape on which a title or the like described on a lyrics card attached to a compact disc or the like is copied. The tape thus constructed is attached to, for example, an index card of a cassette tape.

As shown in FIGS. 1 and 2, the housing 11 of the present tape copying apparatus has a rectangular printing section 11a and a reading section 11b protruding forward from the lower portion of the printing section 11a in a side view. It is formed in a substantially "L" shape. A drive switch 13 is attached to the right side of the upper surface of the housing 11.

Inside the printing portion 11a, a frame 15 is attached, which has both ends bent forward and is formed into a substantially "U" shape in a top view.

Guide bars 17 extending in the left-right direction are supported by the frame 15 on both sides of the reading unit 11 b, and a reading sensor 19 is supported along the guide bars 17 so as to be movable in the left-right direction. There is. The reading sensor 19 has 64 contact-type image sensor elements mounted on the lower surface side by side in a direction orthogonal to the guide bar 17. The upper surface of the reading unit 11b is covered with a transparent acrylic plate 21 so that the path along which the reading sensor 19 travels, that is, the reading position can be visually observed from above.

As shown in FIG. 3, a DC motor 29 is attached to the frame 15, and the DC motor 29 is arranged so as to rotate in one direction (counterclockwise direction). The rotation speed of the DC motor 29 does not need to be controlled to be constant within a certain range. A motor gear 29a is attached to the rotating shaft of the DC motor 29. The drive switch 13 is interlocked with the electric switch 30 and moves the clutch gear mounting plate 32 via a link 31. On the clutch gear mounting plate 32, gears G11 to G14 are rotatably supported.

The power of the DC motor 29 is transmitted to the supply gear 34 via the motor gear 29 a and the gears G 1 to G 11 and G 12 when the drive switch 13 is pressed down, and further, the supply gear 34. The protruding portion 34a of the coil spring 28 engages with the tip end portion 28b of the coil spring 28, and is transmitted to the drive pulley 27 by the frictional force between the coil spring 28 and the shaft portion 27a of the pulley 27 due to the tightening force of the coil spring 28 (FIG. See). At this time, the reading sensor 19 moves to the right.

As shown in FIG. 4, when the drive switch 13 is released, the gears G11 to G14 attached to the clutch gear attachment plate 32 move, so that the DC motor 29 is driven. The power is transmitted to the supply gear 34 via the motor gear 29a and the gears G1 to G10, G13, G14, and the protrusion 34a of the supply gear 34 engages with the tip end 28a of the coil spring 28 and the coil spring 28. Is transmitted to the drive pulley 27, and the reading sensor 19 moves to the left.

Here, since the number of gears and the gear ratio are different as compared with the state where the drive switch 13 is pressed, even when the DC motor 29 rotates in the same direction and at the same speed, it is compared with the state when it is pressed in the left direction. And will move at a fast speed.

A discharge hole (not shown) is formed on the left side surface of the housing 11, and a pair of feed rollers (for feeding a tape 39 pulled out from a tape cartridge 37 described later) are provided on the right side of the discharge hole. Hereinafter, an upper feed roller 41 and a lower feed roller 43 are also provided. The upper feed roller 41 is attached to a shaft protruding to the back side of the frame 15. A gear 41a is attached to the upper feed roller 41, and the gear 41a is connected to the gear G7. Therefore, the both feed rollers 41 convey the tape 39 in the paper discharge hole direction by the drive of the DC motor 29 regardless of the pressed state of the drive switch 13.

Further, the lower feed roller 43 is rotatably supported by a support portion 45 which is rotatable on the frame 15. A thermal head 47 is provided on the right side of both the feed rollers 41 and 43 so as to project to the back side of the frame. The support portion 45 supports a platen 49 at a position facing the thermal head 47, and is biased in a direction to close the thermal head 47 and the platen 49 and both feed rollers 41 and 43. However, these can be opened by operating a lever (not shown).

A gear is also formed integrally with the lower feed roller 43, and this gear meshes with the gear 41a when the pair of feed rollers 41, 43 is closed.

The gear ratios of the respective gears are set so that the peripheral speeds of the feed rollers 41 and 43 when the drive switch 13 is pressed down and the transfer speed of the reading sensor 19 match.

As shown in FIG. 3, a cutter 55 is attached by a screw 56 (see FIG. 5) between the discharge hole (not shown) and the feed rollers 41 and 43. Is operated by a cutter lever 57 rotatably supported on the frame 15. The cutter lever 57 is biased clockwise by a spring 57a in the figure.

As shown in FIG. 6, the cutter 55 has a fixed blade 55a and a movable blade 55b. The fixed blade 55a is provided on a fixed portion 55c fixed to the frame 15 by a screw 56 (see FIG. 5), and the fixed portion 55c is provided with an arm portion 55d extending rightward in FIG. .. The movable blade 55b is provided on a movable portion 55e which comes into contact with the cutter lever 57 and receives a force from the cutter lever 57, and the movable portion 55e is provided with an arm portion 55f extending rightward in FIG. The arm portion 55d and the arm portion 55f are integrally formed via a curved elastic portion 55g. Here, as shown in FIG. 7, the movable portion 55b and the arm portion 55f are formed to intersect with the fixed portion 55c and the arm portion 55d of the cutter 55. Therefore, the fixed blade 55b and the movable blade 55d contact each other at one point.

When the user rotates the cutter lever 57 counterclockwise in FIG. 3, the cutter lever 57 moves the movable portion 55e of the cutter 55 against the elastic force of the elastic portion 55g as shown in FIG. By pressing in the middle Z direction, the movable blade 55b is pressed against the fixed blade 55a. By operating the cutter lever 57, it is possible to cut the tape 39 fed by the feed rollers 41 and 43.

When the user releases his / her hand from the cutter lever 57, the cutter lever 57 is urged in the clockwise direction by the spring 57a and moved to the original position. At this time, the movable blade 55b of the cutter 55 is moved from the fixed blade 55a to its original position by the elastic force of the elastic portion 55g.

Next, the operation of the present apparatus configured as described above will be described.

In the initial state, the reading sensor 19 is placed at the left end of the travelable range.

First, the apparatus is placed on an image to be copied (for example, on the title of a lyrics card), and the traveling position of the reading sensor 19 is aligned with the image. At this time, the traveling position of the reading sensor 19 can be visually confirmed through the transparent acrylic plate 21, and the position can be easily adjusted.

After that, the drive switch 13 is pressed. Then, the DC motor 29 rotates in a predetermined direction, and the clutch gear mounting plate 32 moves to form a power transmission path via the motor gear 29a, the gears G1 to G12, and the supply gear 34 as shown in FIG. It As a result, the supply gear 34 rotates and the protrusion 34a engages with the tip end portion 28b of the coil spring 28. When transmitted to the drive pulley 27, the reading sensor 19 starts moving to the right. At the same time as this movement, the image is read by the reading sensor 19, the image is processed in a micro computer (not shown), and simultaneously output to the thermal head 47. At this time, the feed roller 41 rotates via the power transmission path of the motor gear 29a, the gears G1 to G7, and the gear integrated with the upper feed roller 41, and conveys the tape 39 and the ink ribbon 77.

The tape 39 passing between the thermal head 47 and the platen 49 is sent out to the outside through the discharge hole. The ink ribbon 77 is wound around the winding shaft 61b. At this time, since the feeding speed of the tape 39 by the feed rollers 41 and 43 and the moving speed of the reading sensor 19 are completely the same, even if the rotation speed of the DC motor 29 is slightly changed, the output image is not so affected. ..

The user releases the depression of the drive switch 13 after confirming that the reading sensor 19 has passed the right end of the desired image range. After that, the DC motor 29 continues to rotate for a while under the control of the microcomputer.

At this time, since the clutch gear mounting plate 32 moves, as shown in FIG. 4, the power transmission paths of the motor gear, the gears G1 to G10, G13, G14, and the supply gear 34 are cut off, and the motor gear 10 is disconnected. , Power transmission paths for the gears G1 to G13, G14, G15, and the supply gear 34 are formed. Therefore, the reading sensor 19 moves to the left and the tape 39 is further fed. The DC motor 29 is stopped after the print end position on the tape 39 has passed the cutting position by the cutter 55. At this time, the gear ratio of each gear is set so that the reading sensor 19 reaches the left end position.

The tape 39 on which an image is formed in this manner is arranged between the fixed blade 55a and the movable blade 55b of the cutter 55. When the user rotates the cutter lever 57 counterclockwise in FIG. 3, the cutter lever 57 resists the anti-elastic force against the effect of the elastic portion 55g to move the movable portion 55e of the cutter 55 in FIG. The tape 39 is cut by pressing in the Z direction and pressing the movable blade 55b against the fixed blade 55a at one point.

When the user releases the cutter lever 57, the spring 57a biases the cutter lever 57 in the clockwise direction in FIG. 3 to move it to the original position. At this time, the movable blade 55b of the cutter 55 is moved to the original position by being separated from the fixed blade 55a by the elastic force of the elastic portion 55g.

As described above, since the cutter 55 is integrally formed through the elastic portion 55g in which the fixed blade 55a and the movable blade 55b are curved, the cutter 55 has a simple structure, and the cutter 55 has a simple structure. The attachment to the frame 15 is only required to fix the fixed blade 55a with the screw 56, and the assembly is easy.

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

In the present embodiment, the cutter lever 57 is moved to the original position by using the spring 57a, but it can be moved to the original position by the elastic force of the elastic portion 55g of the cutter 55.

Further, although the elastic portion 55g of the cutter 55 is curved in this embodiment, it may be bent.

[0046]

[Effect of the device]

 As is clear from the above description, according to the cutting device of the present invention, the fixed blade arm extending from the fixed blade and the movable blade arm extending from the movable blade are provided with the elastic member formed by bending or bending. Since it is integrally formed as a single unit, the structure is simple and the assembly is easy.

[Brief description of drawings]

FIG. 1 is a side view showing an internal configuration of the present tape copying apparatus in a transparent manner.

FIG. 2 is a top view showing the internal configuration of the tape copying apparatus in a transparent manner.

FIG. 3 is a front view showing an internal configuration of the present tape copying apparatus in a state where a drive switch is pressed down.

FIG. 4 is a front view showing an internal configuration of the tape copying apparatus in a state where a drive switch is not pressed down.

FIG. 5 is a side view showing the internal configuration of the tape copying apparatus in a see-through manner.

FIG. 6 is a front view of a cutter.

FIG. 7 is a top view of the cutter.

FIG. 8 is a cross-sectional view showing an attached state of a spring clutch.

FIG. 9 is a perspective view of a printer having a cutting device of the related art.

FIG. 10 is a schematic configuration diagram showing a conventional cutting device.

[Explanation of symbols]

 55 Cutter 55a Fixed Blade 55b Movable Blade 55c Fixed Part 55d Arm 55e Movable Part 55f Elastic Part 57 Cutter Lever 57a Spring

Claims (2)

[Scope of utility model registration request] 1. A fixed blade fixed to a housing of a printing device for printing on a print medium, and supported by the housing so as to be reciprocally movable substantially perpendicular to a printing surface of the print medium,
Further, in a cutting device provided with a movable blade that cuts a print medium in cooperation with the fixed blade, a fixed blade arm extending from the fixed blade and a movable blade arm extending from the movable blade are curved or bent. A cutting device characterized by being integrally formed through the formed elastic member. 2. The cutting device according to claim 1, further comprising drive means for driving the movable blade to reciprocate substantially vertically with respect to the printing surface of the print medium.