JPH084299Y2 - Printer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a printer device, and more particularly to a printer device having an improved paper feeding / discharging mechanism.

[Prior Art] A recording paper and a transfer paper supply roll and a transfer paper wound around a winding roll are integrally housed in a cartridge, and the transfer paper supply roll or the winding roll is pulled out and wound around there. If the transfer paper is set in front of the platen roll, the printer device can be downsized and the operability can be improved. Therefore, many printers of this type have been proposed in the past, and the inventors of the present invention have proposed such printers in Japanese Patent Application No. 60-189671 and Japanese Patent Application No. 62-280794.

FIG. 12 is a perspective view showing an example of this type of printer device proposed by the present inventors. In the figure, reference numeral 177 denotes a paper feed roller, which rotates the motor 110 by gears 169, 168, 174, 173, 176.
Is transmitted through. The arm 175 rotates about the shaft 106 (feeding roller 177 driving shaft). 179
Is an electromagnetic solenoid, which is energized when a paper feed start signal is input, the movable iron core is attracted against the spring 190, the link 191,
The arm 175 is rotated in the direction of arrow b via the connecting pin 192. As a result, the paper feed roller side rotates in the direction of arrow c and is pressed against the recording paper 135 side in the cassette 194. Motor 11 at the same time
0 rotates, the paper feed roller 177 is rotated in the d direction, and the recording paper
135 pieces of 135a are separated by nails 193 (on both sides),
The sheet is guided by the guide plate 166 and fed to a predetermined position on the platen 115. When the paper feeding is completed, the energization of the solenoid 179 and the rotation of the motor 110 are stopped, and the paper feeding roller 179 is stopped to be separated.

When the motor 110 is rotated without energizing the solenoid 179 at the time of paper discharge, the paper discharge rollers 101 and 102 are rotated by the gears 195 and 196. On the other hand, the separated paper feed rollers 177 and 167 also rotate and can eject the paper. At the time of manual feeding, the recording paper may be set in the G direction from the paper discharge port, and the motor 110 may be rotated in the reverse direction without energizing the solenoid 179.

That is, in this printer, when the recording paper in the cartridge is fed to the clamper on the platen roller, the solenoid is used to press the paper feed roller against the recording paper and rotate the paper feed roller to rotate the recording paper. Is being sent. Further, in the manual paper feeding, the recording paper is fed by feeding the recording paper backward from the paper discharge port.

[Problems to be Solved by the Invention] However, since this conventional printer device uses a solenoid as a means for pressing the paper feed roller against the recording paper, the device becomes complicated and large, and the manufacturing cost thereof increases. Moreover, since a solenoid with large power consumption is used, there is a problem that the running cost of the device increases.

Further, although this conventional printer device is capable of manual feeding, a dedicated manual feeding port is not provided due to the space of the solenoid or the like, and manual feeding cannot be performed unless the recording paper is fed backward from the ejection port. Therefore, there is a problem that when manually feeding the paper, it is necessary to confirm whether the recording paper staying in the discharged paper is already recorded or not recorded.

[Means for Solving the Problems] In the printer device according to the present invention, when the cartridge that integrally stores the recording paper, the transfer paper supply roll, and the transfer paper wound around the take-up roll is mounted, Transfer paper transporting means for pulling the roll out of the cartridge to pull out the transfer paper to a predetermined position on the head side of the platen roller and setting, and paper feeding for bringing the recording paper out of the cartridge in contact with the recording paper. In a printer device, which has a roller, and which comprises a recording paper conveying means for guiding the pulled-out recording paper between the platen roller and the transfer paper, and a recording paper discharging means for discharging the recorded recording paper, The paper feed roller is brought into contact with the recording paper when the transfer paper transportation means is operated, and the paper feed roller is recorded when the transfer paper transportation means is reversely operated. The above problem is solved by providing a link mechanism for separating from the paper between the transfer paper conveying means and the paper feed roller.

[Operation] In the present invention, since the link mechanism as described above is provided between the transfer paper conveying means and the paper feeding roller, the paper feeding roller comes into contact with the recording paper when the transfer paper conveying means is operated, and the recording paper is The paper is pulled out from the cartridge, and the paper feed roller separates from the recording paper when the transfer paper transporting device is in reverse operation.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

 First, the structure of the cartridge will be described.

In FIGS. 9 to 11, reference numeral 1 denotes a cartridge, which is composed of a flat box-shaped main body 4 and a cover 5 attached to the upper surface of the main body 4. An upper portion of the main body 4 on the insertion side (right side in the drawing) is open, and the cover 5 is attached to this opening. The cover 5 has a protrusion 5a formed near the end thereof attached to the opening of the main body 4 so as to be openable and closable around the shaft 9. A spring 10 is attached to each portion of the main body 4 to which the cover 5 is attached, and the cover 5 is urged by the spring 10 in the closing direction.

A handle 6 having a wide groove is formed on the upper surface of the main body 4 in the width direction along the rear end side (left side in the drawing). The handle 6 facilitates attachment / detachment of the cartridge 1 to / from the recording device 29 described later. Guide grooves 7 and 8 are formed in the longitudinal direction on both side surfaces of the body 4. The guide grooves 7 and 8 are formed by shifting from the center of the thickness to the upper surface side so that the cartridge 1 is not mounted upside down.

A pair of holes 11 are provided in the tip end surface of the main body 4 on the insertion side. The space between the holes 11 is formed to have the same width as that of the arm 33, which will be described later. Reference numeral 13 is a lock pin of the cover 5, and the cartridge 1 is a recording device 29 which will be described later.
This lock pin 13 is pushed when it is inserted into the rail 30 of
The lock of the cover 5 is released.

A recording paper storage unit 2 and a transfer paper storage unit 3 are integrally formed in the main body 4, and in the transfer paper storage unit 3, a supply roll 16 around which the transfer paper 15 is wound and a supply roll 16 wound around the supply roll 16. A take-up roll 17 for winding the turned transfer paper 15 is provided. A recording device 29 is provided on each end of each core 18 of each roll 16 and 17.
Split grooves 19 are formed so that the couplers (not shown) can be fitted therein. The split groove 19 of the supply roll 16 is fitted to the delivery shaft of the recording device 29, and the split groove 19 of the winding roll 17 is inserted.
Is fitted to the take-up shaft of the recording device 29 and its position is set accurately, and even if the dimensional accuracy of the cartridge 1 is poor, wrinkles do not occur on the transfer paper.

The recording paper storage unit 2 includes the recording papers 20 that are horizontally stacked and stored.
A pressure spring 21 for pressing the front end side of the recording paper 20 and the recording paper 20.
It is composed of a receiving plate 22 and a separating claw 23 which are stacked on top of each other. The separation claw 23 has a cartridge 1 to prevent damage.
It is arranged at a position slightly above the bottom surface of the recording paper 20 and engages with both corners of the bottom end of the recording paper 20. A cover 24 is provided on the lower surface of the recording paper storage unit 2 to minimize the adhesion of dust to the recording paper 20. The cover 24 is rotatably attached by a shaft in FIGS. 3 to 6, but may be fixed if it is a disposable cartridge, for example.

A plurality of detection holes 25 for identifying the types, characteristics, etc. of the recording paper and transfer paper are formed along one side of the bottom of the main body 4. The type and characteristics of the recording paper and transfer paper may be detected by an optical sensor, contact pin, etc. using a code plate. A portion 27 of the lower surface of the main body 4 forms a part of the paper feed guide plate, which simplifies the paper feed path of the recording device 29 and facilitates the removal of the recording paper 20 when the paper is jammed. Also, ribs 28 are provided on the insertion side of the bottom surface of the main body 4.
Is provided. This rib 28 is a recording paper 20
And the part 27 are prevented from sticking to each other, and stable paper feeding is performed.
This is to form a good image by minimizing the adhesion of scratches on the recording surface.

Next, the structure of the recording apparatus will be described with reference to FIGS. 1 to 11.

As shown in FIG. 2, rails 30 are provided inside both side walls of the recording device 29, and opening claws 31 are provided at both inner ends near the center upper part of the recording device 29. A micro switch 35 is provided on the right side of the drawing. The tip 32 of the opening claw 31 is located at the same height as the rail 30, and the guide grooves 7 and 8 of the cartridge 1 are inserted therein.

A platen roller 34 is provided on the inner side (right side in the drawing) of the recording device 29. Arms 33 for transferring and setting the transfer paper winding roll 17 to a predetermined position are provided on both end surfaces of the platen roller 34. It is provided so as to be concentric with the rotation center of. A thermal head 36 is provided near the platen roller 34 on the back side (right side in the drawing), and the thermal head 36 is held by a holding member 37,
The lower end of the holding member 37 is rotatably attached by a shaft 38.

FIG. 1 is a perspective view of a link mechanism which is an essential part of the present invention. In the figure, 39 is a paper feed roller, the surface of which is made of an elastic member, and its shaft 40 is rotatably held by the tip of a lever 42 which rotates about a shaft 41. The paper feed roller 39 is a pulley 44, a timing belt
It is rotatably connected to the shaft 41 via 43 and a pulley 45. A tension idler 46 is provided in the middle of the timing belt 43, and the timing belt 43 is tensioned by the tension idler 46 so as not to loosen.

The shaft 41 is connected to a drive motor 47 via reduction gears 48-52. A one-way clutch 53 is provided between the gear 52 and the shaft 41, and when the gear 52 rotates in the direction indicated by arrow D (that is, the paper feed roller 39 rotates in the paper feed direction), the gear 52 and the shaft are rotated. 41 transmits drive and slips when rotating in the opposite direction. On the other hand, a driven pin 54 is provided between the lever 42 and the sheet feeding roller 39 in parallel with the shaft 41, and both end portions of the driven pin 54 project outside the lever 42 and are guided by guide pins 57 to slide. It engages with the cam groove 56 of the first link 55.

Since the first link 55 is biased to the left in FIG. 1 by the spring 58 having one end fixed to the driven pin 54,
The lever 42 is urged downward (to the right). The right end of the first link 55 is connected to the second link by the connecting pin 59.
It fits in the long groove 61 of 60. The right end of the second link 60 is an axis
It is rotatably fixed to the arm 33 by 62.

In FIGS. 2 to 6, reference numeral 63 denotes a paper discharge path, and this paper discharge path is constituted by guide plates 64, 65, 66.
The guide plate 66 also serves as a guide plate forming the paper feed path 67. The guide plate 66 is rotatable about a shaft 68, and makes it easy to remove the recording paper when, for example, a paper jam occurs in the paper discharge path 63. The roller 69 provided at the right end of the guide plate 66 is a roller for the purpose of bringing the clamped recording paper into close contact with the platen roller 34, and the roller 70 is for ensuring the traveling path of the transfer paper.

Paper discharge rollers 71 and 72 are provided in the middle of the paper discharge path 63. The discharge roller 71 is fixed to the gear 51, and the discharge roller 72
Is connected to the timing belt 73 and the pulleys 74 and 75 so as to rotate in the same direction. Driven rollers 76 and 77 are provided so as to face the discharge rollers 71 and 72, and these are leaf springs 7.
It is urged toward the paper discharge rollers 71, 72 by 8, 79.

Reference numeral 80 is a reflection type optical sensor for detecting the recording paper to be ejected. Reference numeral 81 is a manual paper feeding path, and this manual paper feeding path is constituted by guide plates 82 and 83. Although not shown, the width of the manual paper feed path 81 is equal to the width of the recording paper to prevent the oblique paper feed. Also, the paper discharge path 63
The width is set to be sufficiently wider than the width of the recording paper to reduce the occurrence of paper jam. A driven roller 84 is biased by a leaf spring 85 on the paper discharge roller 72. A driven roller is not provided on the side of the paper discharge roller 71, and the recording paper can be set deeply and stably.

86 is a clamper attached to the platen roller 34, and the clamper 86 is attached rotatably by a shaft 87. Reference numeral 89 is a reflection type optical sensor for detecting the recording paper set by hand.

Next, the operation of mounting the cartridge 1 in the recording device 29 will be described.

FIG. 2 is a side view of the recording device 29 before the cartridge 1 is inserted. The cartridge 1 is inserted into the recording device 29, and the guide groove 7 is fitted to the rail 30 of the recording device 29. When it is inserted horizontally as shown in FIG. 3, the cartridge 1 is guided in the recording device 29 in the direction indicated by the arrow A.

When the cartridge 1 inserted in the recording device 29 reaches the position shown in FIG. 4, the tip 32 of the opening claw 31 engages with the guide groove 8 of the cover 5, and the tip side of the cover 5 has the opening claw 31. Ascending along the slope, the cover 5 rotates around the shaft 9 and opens. On the contrary, when the cartridge 1 is taken out (pulled out in the direction opposite to the arrow A), the cover 5 is closed by its own weight and the biasing force of the spring 10.

When the cartridge 1 moves from the position shown in FIG. 3 to the position shown in FIG. 4 in the recording device 29, the arm 33 penetrates the hole 34 and meshes with the core 18 of the take-up roll 17. When the cartridge 1 is completely loaded into the recording device 29, the cover 5 is completely opened, the micro switch 35 is pushed by the tip of the cover 5 to be in the ON state, and the arm 33 is set to the winding roll 17. With
It is rotated as shown by an arrow B by a driving means (not shown) and moved from the position shown in FIG. 4 to the position shown in FIG. 5 (for details, see FIGS. 7 and 8).

When the arm 33 is rotated together with the take-up roll 17 as shown by arrow B, the holding member 37 holding the thermal head 36 also rotates about the shaft 38 as shown by arrow C, and the thermal head 36 is rotated. Moves to the position shown in FIG.
When the arm 33 moves to the position shown in FIG. 5, the winding shaft is mounted from both ends of the core 18 by the mounting means (not shown).

When the cartridge 1 is not in the above position, the micro switch 35 is in the OFF state, so the arm 33 returns to the position shown in FIG. 2 and stands by.

 Next, the pressing operation of the paper feed roller will be described.

When the arm 33 transfers the transfer paper roll 17 in the direction shown by the arrow B in FIG. 4, the second link 60 slides the first link 55 in the right direction in the figure, and the cam groove 56 moves the driven pin 54. As a result, the lever 42 is lifted, and the paper feed roller 39 is pressed against the bottom surface of the recording paper 20 from below.

Next, the printing operation by supplying the recording paper 20 in the cartridge 1 will be described.

As shown in FIG. 5, when the arm 33 is set to the right and the transfer paper 15 is moved to a desired position by a means not shown, and the thermal head 36 and the platen roller 34 come to predetermined positions, printing starts. Waiting for a signal. Here, when the print start signal is input, the clamper is operated by means not shown.
86 rotates right about the shaft 87 (see FIG. 6).

Next, the drive motor 47 rotates and the paper feed roller 39 rotates clockwise. As a result, the lowermost paper of the recording paper 20 in the cartridge 1 is separated by the separating claw 23 and guided by the guide portion 27 and the guide plate 66 of the cartridge 1, and the leading end of the recording paper 20 is between the clamper 86 and the platen roller 34. Inserted in. When this state is detected by means (not shown), the clamper 86 rotates counterclockwise and closes, and the platen roller 34 starts clockwise rotation. This time,
Since the drive motor 47 is stopped, the recording paper 20 is fed to the paper feed roller 39
It is wound around the platen roller 34 while giving back tension generated from the rotation of the. When the clamper 86 passes under the thermal head 36, the thermal head 36 press-contacts the platen roller 34 together with the transfer paper 15 to perform energization recording.

 Next, the operation of the paper discharge roller will be described.

When the gear 51 rotates right, the recording paper is ejected. At this time, the gear 52 rotates counterclockwise, so the one-way clutch 53
Slips and the feed roller does not rotate. The platen roller 34 rotates to the right during paper ejection, and when the trailing edge of the recording paper reaches the position 88, the platen roller 34 starts to rotate to the left. As a result, the trailing edge of the recording paper is guided by the guide plates 64 and 66 and sent between the paper discharge roller 75 and the driven roller 77. At this time, the paper discharge roller 75 is rotated to the right in the figure, and the paper feed roller 39 is slipped by the one-way clutch 53, so that paper is not fed. Clamper
When 86 is rotated to the position shown in FIG. 5 to the right, which is the same as the clamp start position, the clamper 86 is rotated to the right to release the leading end of the recording paper 20. After that, the paper is discharged while being guided by the guide plates 64 and 65 by the paper discharge rollers 74 and 75.

 The detection of paper jams is performed as follows.

After the clamper 86 is opened, the paper discharge rollers 80 and 75 detect the recording paper by the paper discharge sensor 80 after a fixed time corresponding to the peripheral speed.
This time is the time when the trailing edge of the recording paper 20 reaches the paper discharge sensor 80 if the paper is normally discharged, and if not detected, it is determined that the paper discharge roller 75 has caused a paper jam by the driven roller 77. . When the recording paper 20 is normally detected, the paper discharge sensor 80 detects the recording paper 20 after a certain period of time. This time is the time when the leading edge of the recording paper 20 is ejected from the paper ejection roller 74 if the paper is normally ejected, and if the recording paper 20 is detected, the distance between the paper ejection roller 74 and the driven roller 76 is detected. It is judged that a paper jam has occurred.

 Next, manual sheet feeding will be described.

The paper discharge rollers 71 and 72 are used for driving the manual paper feed. That is, since the upper surfaces of the paper discharge rollers 71 and 72 move in the opposite direction to the paper discharge, by manually rotating the paper discharge rollers 71 and 72, it is possible to manually feed the paper without rotating the paper feed roller. The set recording paper is a reflective optical sensor 86.
Detected by, the manual feed mode is given priority over the paper feed from the cartridge (that is, the paper output roller
71 and 72 rotate right).

The setting of the transfer paper 15, the position of the clamper, etc. are the same as the paper feeding from the cartridge 1. In this state, the recording paper is inserted through the manual insertion port 81 and set so that the leading end also abuts the paper discharge roller 75 and the driven roller 84. Here, when the print start signal is input, first, the manual sheet sensor 89 checks the recording sheet, and when there is the recording sheet, the discharge roller 75 rotates to the right (that is, the sheet feeding roller 39 does not rotate). At this time, the paper discharge roller 74 assists in pushing the recording paper into the paper discharge roller 75. The recording paper is guided by the lower surface 27 of the cartridge 1 and the guide plate 66, and sent to the clamper 86. Subsequent operations are the same as the sheet feeding from the cartridge 1.

[Advantages of the Invention] In the present invention, since the transfer paper supply roll and the take-up roll can be provided close to each other in the cartridge, in addition to the effect that the cartridge itself and hence the printer device can be downsized, a link mechanism can be used as a solenoid. Since it is not necessary to separately provide such a large-sized mechanism, there is an effect that the size can be further reduced at a low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of the link mechanism, FIG. 2 is a side sectional view of the recording apparatus before the cartridge is mounted, FIG. 3 is a side sectional view of the recording apparatus in the middle of mounting the cartridge, and FIG. 4 is a recording apparatus immediately after the cartridge is mounted. FIG. 5 is a side sectional view of the recording apparatus after transfer paper roll setting is completed, FIG. 6 is a side sectional view of the recording apparatus during recording paper feeding and discharging, and FIG. 7 is FIG. 8 is an enlarged view of the link mechanism shown in FIG. 5, FIG. 8 is an enlarged view of the link mechanism shown in FIG. 5, FIG. 9 is a perspective view of the cartridge, FIG. 10 is a perspective view of the cartridge with the cover opened, and FIG. FIG. 12 is a perspective view of the cartridge from the back side, and FIG. 12 is a perspective view of a paper feed roller pressure contact mechanism of a conventional printer device. 33 ... Arm, 39 ... Feed roller, 40 ... Axis, 41 ... Shaft, 42 ... Lever, 43 ... Timing belt, 44 ...
… Pulley, 45 …… Pulley, 46 …… Tension idler, 47 …… Drive motor, 48 ～ 52 …… Gear, 53 …… One way clutch, 54 …… Driven pin, 55 …… First link,
56 …… Cam groove, 57 …… Guide pin, 58 …… Spring,
59 …… Connecting pin, 60 …… Second link.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Wakui 3-12 Moriya-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Japan Victor Co., Ltd. Tadayoshi Ono (56) Bibliography 62-65245 (JP) , U)

Claims (1)

[Scope of utility model registration request] 1. When a cartridge integrally accommodating a recording paper, a transfer paper supply roll, and a transfer paper wound around a take-up roll is mounted, the transfer is performed by pulling the take-up roll out of the cartridge. A transfer paper conveying unit for pulling out and setting the paper at a predetermined position on the head side of the platen roller, and a paper feed roller for coming in contact with the recording paper and pulling the recording paper out of the cartridge, are provided. In a printer device comprising a recording paper conveying means for guiding between the platen roller and the transfer paper, and a recording paper discharging means for discharging the recorded recording paper, the paper feeding roller is operated when the transfer paper conveying means operates. A link mechanism for bringing the paper feed roller into contact with the recording paper and separating the paper feed roller from the recording paper when the transfer paper conveying means is in reverse operation is provided. Printer apparatus being characterized in that disposed between the feed roller and stages.