JP2003154693A - Printer equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a paper jam in small-sized printer equipment by a simple structure. SOLUTION: An operating member 28 is disposed for a guiding-supporting block 24 fixed on both right and left sides of a main body case 2 so that it can move forward and backward, and the operating member 28 is retracted backward by the medium of a lock piece 25 when a cover body 13 is moved backward in parallel to the upper side of the main body case 2. An interlocking link body 33 connected rotatably to the operating member 28 rotates counterclockwise around the shaft 9a of a platen roller 9, in Fig. 8 (b). A first cam 36 provided for the link body 33 pushes the front of a paper guide 10 against the urging force of an urging means 16 and detaches it from the outer peripheral surface of the platen roller 9. At the same time, a second cam 37 pushes the lower side of the thermal head 8 upward against the urging force of an urging means 19 and thereby a heater part of the thermal head 8 is detached from the outer peripheral surface of the platen roller 9. Therefore paper 4 is removed simply.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device, and more particularly, to a printer system of a printing system using a thermal head, which is capable of easily removing the paper when the paper is jammed. Is.

[0002]

2. Description of the Related Art In recent years, due to the shift to mobile, miniaturized information devices such as notebook computers and portable information terminal devices have become widespread. Along with this, there is a demand for a miniaturized printer device that is convenient to carry.

[0003]

By the way, when the printer is miniaturized, if the printing portion is a thermal head, it becomes compact. On the other hand, it is attached to the notebook computer or portable information terminal device,
When using a printer device,
For example, it is more likely that the notebook computer will be used by being hooked on the frame of an openable display or the like, or by leaning the printer device on the desk, and paper will be output and printed on the front side of the main body case of the printer device. It was requested that the surface be visible to the user facing the front surface of the main body case. Further, in order to reduce the thickness and size of the printer device, it is necessary to simplify the paper conveying means.

To this end, a platen roller, a paper guide having an arcuate cross-section facing a part of the outer circumference of the platen roller, and an outer peripheral surface of the platen roller are abutted at a position near one end in the main body case of the printer. A sheet that is provided with a thermal head and is stacked in the main body case is conveyed toward the outer periphery of the platen roller by a pick-up means, and then between the rotating platen roller and the paper guide. It is conceivable that the sheet is guided and conveyed in the thermal head direction so as to make a U-turn on the outer periphery of the platen roller by the pressing force, and printing is performed at the thermal head portion on the surface of the sheet after the U-turn. The thermal head has a line head structure in which the heating elements are arranged along the axis of the platen roller, and the print width is set to be substantially equal to the paper width.

However, when a paper jam occurs such that the paper is jammed between the platen roller and the paper guide or jammed at the location of the thermal head, the paper can be easily cleaned without damaging the small mechanism section. Although it was necessary to remove the thermal head, conventionally, there was not a structure in which the thermal head could be interlocked and released to the platen roller when releasing the gap between the platen roller and the paper guide.

The present invention has been made in order to meet such a demand, and achieves thinning and miniaturization of a printer device (simplification of structure), and at the time of jamming a paper, removing the paper. It is an object of the present invention to provide a printer device that can be easily performed.

[0007]

In order to achieve the above-mentioned object, a printer device according to a first aspect of the present invention is configured such that a recording medium that has been conveyed is placed in a platen case in which a recording medium is housed in a stacked state. In a printer device including a paper guide for guiding the outer periphery of a roller and a thermal head for forming an image on the recording medium on the outer peripheral surface of the platen roller, the paper guide and the thermal head are provided on the platen roller. A release interlocking mechanism for contacting and separating with respect to is disposed in the main body case.

According to a second aspect of the present invention, in the printer apparatus according to the first aspect, the release interlocking mechanism is interlocked with an opening / closing operation of a lid body that can be opened and closed with respect to the main body case. The thermal head is configured to come into contact with and separate from the platen roller.

According to a third aspect of the present invention, in the printer apparatus according to the second aspect, the release interlocking mechanism is provided with an urging means for urging the paper guide and the thermal head with respect to the platen roller. Is a reciprocally arranged member in the main body case, and a separating position for separating the paper guide and the thermal head from the platen roller against the urging force of the urging unit, and the urging unit. An operating means is provided which can be switched between an urging position in which the paper guide and the thermal head are urged against the platen roller by a force, and the operating means moves to the separated position when the lid is opened. While the paper guide and the thermal head are separated from the platen roller, the operation is urged by the closing operation of the lid. In which to move the location and configured to urge the paper guide and the thermal head against the platen roller.

Further, the invention according to a fourth aspect is the printer apparatus according to the second or third aspect, wherein the release interlocking mechanism is located at either one or both of the open position and the closed position of the lid. Is provided with a lock means for holding the lock state.

According to a fifth aspect of the present invention, in the printer apparatus according to any one of the second to fourth aspects, the lid is a pivoted position that is wide open with respect to the open surface of the main body case. It is configured to be reciprocally movable in parallel with the open surface of the main body case and to be locked to the main body case when the lid body is moved in the closing direction.

According to a sixth aspect of the present invention, in the printer apparatus according to any one of the third to fifth aspects, the operating means are provided on both sides of the main body case along a platen roller, and the lid is provided. The body is provided with an action portion that engages with the actuating means and moves.

According to a seventh aspect of the present invention, in the printer apparatus according to the fifth or sixth aspect, the operating means includes a separating position for separating the paper guide and the thermal head from the platen roller and the paper guide and the thermal head. A cam means for switching between an urging position for urging the platen roller and an actuated portion for switching and moving the cam means are provided, and the lid can be engaged with the actuated portion. An operating portion is provided, and the lid is moved in parallel with the open surface of the main body case, so that the cam means is switched and moved via the operated portion.

On the other hand, the invention of claim 8 is the same as claim 1.
In the printer device according to the item (1), the release interlocking mechanism is connected to the rotating member that rotates the thermal head to and away from the platen roller, and is connected to the rotating member, and is connected to the platen roller against the biasing force. On the other hand, a cam means for separating the paper guide is provided.

The invention according to claim 9 is the same as that of claim 8.
In the printer device described in the paragraph (1), the cam means is rotatably arranged on both left and right sides of the main body case, and the rotation fulcrum of the operating member is provided at the position of the cam means.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment in which the present invention is embodied in a small portable printer will be described with reference to the drawings. First, the printer device 1 according to the present invention
The schematic structure of 1 will be described with reference to FIGS. The printer device 1 has an A6 size or A7 size in plan view and an upper surface open box type main body case 2 having a thickness of about 1 cm or less, and a fixed cover body 3 on one side of the upper surface. In the main body case 2 except for the fixed cover body 3, a paper storage unit 6 capable of storing a paper package 5 (see FIG. 3) in which a plurality of papers 4 as cut-sheet recording media made of thermal paper are stored. Are formed. In the vicinity of the lower surface side of the fixed cover body 3,
A thermal head 8 as a printing mechanism section 7, which will be described in detail later,
A platen roller 9, a paper guide 10, a pickup roller 11 as a paper separating portion, and a separation block 12
Etc. are arranged. The separation block 12 is formed with a guide locking surface 121 that is inclined with respect to the paper feeding direction of the pickup roller 11. Then, the sheet storage section 6 is covered with a lid body 13 which can be opened and closed via an opening / closing support means 14 which is rotatable and slidable on the body case side.

The rotation fulcrum of the lid 13 is slidable along the upper surface of the main body case 2 between the locked position shown in FIG. 5A and the unlocked position shown in FIG. 5B. .
The lid 13 can be turned up and down when the turning fulcrum is in the unlocked position.

The thermal head 8 is a line head type, and prints characters and images on each line extending in a direction orthogonal to the transport direction of the heat-sensitive sheet 4 which is sandwiched between the platen roller 9 and transported. can do. The print width when printing one line is set to be substantially equal to the paper width of the paper 4 in the orthogonal direction. The thermal head 8 and the platen roller 9 have a length in the short side direction of the sheet 4 of A6 size or A7 size. The thermal head 8 is used as a print head because thermal paper is used as a recording medium, so that ink and ink ribbon consumables are not required, and a mechanism therefor can be omitted, and the printer device 1 can be made compact. Is.

As the thermal paper, various types such as a thermal color developing type having a color developing layer which develops color when the thermal head 8 is heated, a thermal sensitive perforating type in which a perforating layer perforated by heating is laminated on a base material layer, and the like. Can be used.

A pickup roller 11 and a separation block 12 are disposed on the side of the paper storage unit 6 near the printing mechanism unit 7 (FIGS. 5 (a) and 5 (b)).
reference). The paper package 5 accommodated in the paper accommodating portion 6 is provided with a bottom plate 6a of the paper accommodating portion 6 via a biasing means 15 such as a leaf spring provided on the inner surface side of the main body of the closed lid 13.
Is urged towards. Of the stacked sheets 4 in the sheet package 5, the sheet 4 exposed outside the sheet package 5
The (lowermost sheet) is abutted and urged against the upper surface of the pickup roller 11. Due to the cooperation of the rotational driving of the pickup roller and the guide locking surface 121 of the separation block 12, only the lowermost sheet 4 passes through the gap between the lower end of the separation block 12 and the guide plate 17. The platen roller 9 is rotatably provided adjacent to the separation block 12, and the paper guide 10 is biased to the outer peripheral surface thereof by a biasing means 16 such as a pressing coil spring. Pickup roller 12
By the guide locking surface 121, the single sheet 4 separated and conveyed from the sheet package 5 is conveyed between the platen roller 9 and the paper guide 10. Paper guide 10
Is formed on the sliding contact surface 10a having a concave curved shape such as a generally U-shaped cross section so that its cross section is along the outer peripheral surface of the platen roller 9.

The paper guide 10 and the lower surface of the thermal head 8 which is arranged above the paper guide 10 so as to be rotatable about the rotation pivot support portion P and which can be brought into contact with and separated from the printing position on the upper surface of the platen roller 9. As a result, the sheet 4 separated and conveyed from the sheet accommodating section 6 is conveyed while being inverted in a lateral U-shape and conveyed to the printing position of the platen roller 9. The thermal head 8 prints on the upper surface of the sheet 4, and the sheet is ejected to the outside of the lid 13 from a gap 20 between the upper surface of the separation block 12 and the edge of the fixed cover 3 (FIG. )reference). The thermal head 8 has a coil spring (urging means) 19 on its back surface (upper surface side), which is urged to the platen roller 9 side, so that the thermal head 8 has a printing portion (heating element portion 8a). Contacts the upper surface of the platen roller 9.

The drive mechanism of the platen roller 9 and the pickup roller 11 is a drive motor arranged on one inner side surface along the long side of the main body case 2 (in the embodiment, the right side in the conveyance direction of the sheet 4 shown in FIG. 2). 22 and a gear transmission mechanism (gear train) 23. The diameter of the platen roller 9 is larger than the diameter of the pickup roller 11, and the sheet conveyance speed at the platen roller 9 is set to be higher than the sheet conveyance speed at the pickup roller 11 so that the pickup roller 11 and the separation block 12 are separated. The paper is separated slowly, and the paper is conveyed by the platen roller 9, and the printing speed is increased. For this reason, a one-way clutch (not shown) that allows the pickup roller 11 to rotate along with high-speed conveyance at nine platen rollers is provided downstream of the platen roller 9 in the gear train.

Next, the release interlocking mechanism (simultaneous pressing of the paper guide 10 and the thermal head 8 against the outer periphery of the platen roller 9 and the simultaneous pressing releasing mechanism) according to the present invention will be described. The release interlocking mechanism is for easily removing the sheet 4 when a sheet jam occurs in the outer peripheral portion of the platen roller 9.

Next, FIGS. 5 (a), 7 and 8 (a)-
Details of each component in the first embodiment of the release interlocking mechanism will be described with reference to FIG. The parts of the release interlocking mechanism according to the first embodiment are reciprocally arranged in the main body case 2 and resist the urging force of the urging means 16 and 19 against the platen roller 9 and the paper guide 10 and. Actuating means for switching between a separating position for separating the thermal head 8 and a biasing position for biasing the paper guide 10 and the thermal head 8 against the platen roller 9 by the biasing forces 16, 19 of the biasing means. The operating means 18 is an interlocking link body 33 having a first cam 36 and a third cam 37 as cam means, which will be described later, and an operating member as an actuated portion for switching and moving the cam means. And 28.

Guide support blocks 24, 24, which are long in the direction in which the platen roller 9 is arranged from the paper guide 10, are formed on the inner surface of the body case 2 along the pair of long sides.
To fix. The guide support blocks 24, 24, an actuating member 28 described later, and an interlocking link body 33 are symmetrically formed of a synthetic resin material, and FIG. 7 is a perspective view of parts such as the right guide support block 24. It is a figure.

A lock piece 25 projecting downward from both left and right sides of the free end side of the lid 13 can be vertically inserted into an intermediate portion of the inner surface of each guide support block 24 in the vertical direction. The vertical guide groove 26 is formed.
On the outer surface side of each of the guide support blocks 24, a lateral guide groove 27 is formed in the middle of the vertical direction along the longitudinal direction, and an operating member 28 is formed in the lateral guide groove 27 in the front-back direction (guide It is movably fitted in the longitudinal direction of the support block 24.

A pair of front and rear restriction blocks 29, 30 are laterally projected at the outer surface of each actuating member 28 at a position near one end in the direction of movement thereof, with the spacing of the vertical guide groove 26 being provided therebetween. On the inner surface of the block 24, a pair of restriction blocks 29, 30 is provided sideways, and a punching window 31 is formed so as to be movable in the front-rear direction by a predetermined distance.

Further, the base portion 32b of the resin spring body 32 whose upper end portion 32a fits in the vertical guide groove 26 is fitted in the engaging portion 33 formed in the outer surface of the guide support block 24 to form a resin spring body. The base 32b of 32 and the connecting portion 32c of the upward end 32a are located below the guide support block 24. In the state where the lid body 13 is rotated upward at the retracted position and slipped out of the vertical guide groove 26 of the guide support block 24 (this is referred to as an open position of the lid body 13), the pair of restriction blocks of the operating member 28 is provided. 29, 30
Since the vertical guide groove 26 is positioned between the resin spring body 3 and
2 has the upper end 32a facing upward,
It is possible to regulate the movement of the operating member 28 in the front-rear direction by projecting upward between 9 and 30. Therefore, this resin spring body 32
The upward tip end 32a is the pair of regulation blocks 29,
By fitting between the lock members 30, the locking mechanism can be held in the locked state so that the release interlocking mechanism does not inadvertently move forward at the open position of the lid 13.

On the other hand, the one (rear side) regulation block 3
On the lower surface side of 0, an inclined surface 30a is formed which becomes an upper position toward the rear. Therefore, in a state in which the actuating member 28 is moved forward (a state in which the regulation block 30 has moved to the position of the vertical guide groove 26, which is referred to as a closed position of the lid 1), the upward tip portion 32a is attached to the inclined surface 30a.
Contact with each other to hold the actuating member 28 in the forward movement position, and with this structure, the release interlocking mechanism serves as a locking means for holding the release interlocking mechanism in the locked position so as not to retract inadvertently.

On the front end side of the actuating member 28, an interlocking link body 33 that is rotatably fitted on the rotary shaft 9a of the platen roller 9 is rotatable via a pin 34 and a vertically elongated hole 35. It is connected. Vertical hole 3 in interlocking link body 33
5 may be formed, and the pin 34 may be formed in the operating member 28.

The interlocking link body 33 is integrally formed with a first cam body 36 and a second cam body 37 as cam means. According to the rotation of the interlocking link body 33, when the first cam body 36 comes into contact with and separates from the front surface of the paper guide 10, the second cam body 37 comes into contact with and separates from the lower surface of the thermal head 8 at the same time. Has been done.

With this structure, as shown in FIG. 5B, after the lid 13 is opened and the opened paper package 5 is set in the paper accommodating portion 6 of the main body case 2 with the paper 4 surface facing downward. When the lid 13 is rotated downward, the leaf spring urging means 15 (see FIG. 5A) on the lower surface of the lid 13 presses the paper package 5 downward.
The tip side of the lowermost surface of the stacked sheets 4 is pressed onto the pickup roller 11.

Then, an operation for preventing the lid 13 from being opened carelessly (the lid 13 is rotated downward to move forward in a state parallel to the opening surface of the main body case 2 to the state of FIG. 5A). ), The paper guide 10 is pressed against the outer peripheral surface of the platen roller 9 and the thermal head 8 is also pressed. That is, lock pieces 25, 25 as action portions that can be engaged to switch the operating member 28 between the separated position and the biased position are provided on the left and right sides of the lid body 13 in the vertical direction of the guide support blocks 24, 24. The guide grooves 26, 26 are provided so as to fit downward from above. The position shown in FIG. 8B, that is, the operating member 28.
When the lock piece 25 enters between the pair of restriction blocks 29 and 30, the lock piece 25 pushes the upward end portion 32 a of the resin spring body 32 into the lower retreat area of the vertical guide groove 26, and the operating member 28. Forward direction (Fig. 5 (b), Fig. 8 (a)
Direction) is allowed. When the lid body 13 is moved toward the fixed cover body 3 (advanced) in this state (openable position of the lid body 13), the lock piece 25 pushes the actuating member 28 forward through the front regulation block 29. . By this operation, the lock piece 25 moves forward from the vertical guide groove 26 and comes to a position closer to the front of the window 31 in the guide support block 24, so that it cannot move upward and the lid 13 cannot be opened and rotated. (See FIG. 8A). That is, the lid 13
Is the closed position. Then, at the forward position of the operating member 28 (closed position of the lid 13), the resin spring body 3 is attached to the lower inclined surface 30a of the regulation block 30 on the rear side.
2 and the upper end 32a of the resin spring 3
The urging force of 2 can prevent the actuating member 28 from unintentionally moving backward.

The closed state (closed position) of the lid 13 (see FIG. 5)
In the state of (a) and FIG. 8 (a), in the case where the rotation fulcrum of the lid 13 is at the lock position), since the front regulation block 29 is pushed through the lock piece 25, the operating member 28 moves forward. , The interlocking link body 33 connected thereto is rotated clockwise as shown in FIG. 8 (a). Then, the first cam body 36 provided on the interlocking link body 33 rotates in a direction away from the front surface of the paper guide 0, so that the paper guide 10 is biased by the biasing means 16 on the back surface side of the platen roller. It urges and moves in the direction of coming into contact with the outer peripheral surface of 19. At the same time, the second cam body 37 provided on the interlocking link body 33 rotates in a direction away from the lower surface of the thermal head 8. As a result, the heating element 8a of the thermal head 8 is pressed against the upper surface of the platen roller 9 by the urging force of the urging means 19. This state is the bias position. Therefore, the first cam body 36 and the interlocking link body 3
3. The operating member 28 is locked in the state shown in FIG.

Then, from a personal computer (not shown) or the like, a USB
When the print command and the image data (print data) are sent to the printer device 1 via the terminal or the infrared terminal, the drive motor 22
Is driven to rotate, and the pickup roller 11 and the platen roller 9 start to rotate at the same time. By the rotation of the pickup roller 11, the leading edge 41 of the lowermost sheet 4 of the stacked sheets 4 collides with the separation block 12 and only the lowermost sheet 4 is separated, and the lower surface of the separation block 12 and the guides. It is conveyed to the board 17. Next, the platen roller 9
The paper 4 nipped between the paper guide 10 and the paper guide 10 is nipped and conveyed by the rotating platen roller 9 and the paper guide 10 and moved toward the thermal head 8 to be printed on the surface of the paper 4 and then fixed on the fixed cover. Paper can be discharged to the outside of the printer device 1 through the gap 20 between the body 3 and the back surface of the separation block 12.

Next, the operation of releasing the thermal head 8 and the paper guide 10 in conjunction with each other when a paper jam occurs will be described with reference to FIGS. 8 (a) to 8 (c). In the present embodiment, it is linked to the opening operation of the lid 13. First, when the lid body 13 is opened, the lid body 13 parallel to the upper surface of the main body case 2 is horizontally moved (retracted) in a direction away from the fixed cover body 3 to remove the lid body 1.
The rotation fulcrum of 3 is moved to the lock release position.

As shown in FIGS. 8 (a) to 8 (b),
When the lid body 13 is retracted, the lock pieces 25, 25 on both the left and right sides of the lid body 13 are fitted between the pair of front and rear regulation blocks 29, 30 of each operating member 28, so that the operating member 2
8 is forcibly retracted against the urging force of the urging means 16 and 19. At this time, the resin spring body 32 is moved against the urging force, but the urging forces of the urging means 16 and 19 are larger.

In the retracted position of the operating member 28, the vertical guide groove 2
6, the upward end portion 32a of the resin spring body 32 retracted to the lower retreat region of 6 is elastically forced to move the pair of regulation blocks 2
It is possible to engage between 9 and 30 from below and hold the retracted position of the actuating member 28 (see FIG. 8C). Also,
The paper package 5 can be replaced by rotating the lid 13 upward.

With the backward movement of the operating member 28, the interlocking link body 33 connected to the operating member 28 via the pin 34 and the vertically long hole 35 is arranged around the shaft 9a of the platen roller 9 in FIG. Rotate counterclockwise in b).
The first cam body 36 provided on the interlocking link body 33 pushes the front surface of the paper guide 10 against the urging force of the urging means 16 and separates it from the outer peripheral surface of the platen roller 9. At the same time, the second cam body 37 pushes the lower surface of the thermal head 8 upward against the urging force of the urging means 19, and the heating element portion 8a of the thermal head 8 separates from the outer peripheral surface of the platen roller 9 (FIG. 8 (b)). This state is the separated position. As a result, the paper 4 wound around the outer periphery of the platen roller 9 can be pulled out of the platen device 1 with a light force. Since the thermal head 8 and the paper guide 10 can be brought into contact with and separated from the platen roller 9 with one touch, the operability is excellent.

Here, the actuating member 28 is immovably locked in the retracted position by the resin spring body 32, but the resin spring body 32 can be deleted. The resin spring body 32, the first and second cam bodies 36 and 37, and the biasing means 16 and 91 correspond to the locking means that holds the release interlocking mechanism in the locked state at the open position and the closed position of the lid body 13. However, it is also possible to change the locking means so as to keep the locking state either when the lid 13 is in the open position or when it is in the closed position.

The both ends of the support shaft 11a of the pickup roller 11 are connected to the guide support blocks 2 on the left and right sides.
It is possible to reduce the number of parts by rotatably supporting the shaft holes 24a of 4 and 24. Although not shown, the leading edge of the conveyed paper 4 is detected at the substantially central portion in the longitudinal direction of the paper guide 10 (corresponding to the substantially central portion in the width direction orthogonal to the conveying direction of the sheet 4). By providing an optical sensor for detecting, it is detected that the sheet 4 separated and conveyed by the pickup roller 11 from the sheet package 5 has been conveyed to the position of the paper guide 10 in a skewed state, and a paper jam occurs. It is desirable to be able to prevent this.

In the first embodiment, as a modification of the locking means for holding the actuating member 28, and thus the release interlocking mechanism, in the closed position of the lid body 12 without inadvertently retreating, the first cam body 36 is a paper. Guide 10
Of the platen roller 9 and the paper guide 10 and the shaft 9 of the platen roller 9 when separated from the contact surface of the platen roller 9.
The first cam body 3 is arranged so as to cross the line of action connecting the axis of a.
The rotation of 6 causes a so-called fulcrum to be exceeded, and the operating member 28 may be held in the advanced position.

As a locking means for holding the release interlocking mechanism in a locked state at both the open position and the closed position of the lid body 13, the pair of restriction blocks 29 and 30 of the actuating member 28 and the resin spring body. The means for fitting with 32 and the upward tip 32a of the resin spring body 32 pressing against the inclined lower surface of the regulation block 30 at the rear position, the contact position of the first cam body 36 with respect to the paper guide 10, the separated position, and the range. There is a turning motion. Also, the lid 13
Any one of the above configurations may be adopted as the locking means for only one of the open position and the closed position. Since the release interlocking mechanism and the locking means are formed in association with the actuating member 28 and the interlocking link body 33 and are used in common, the structure can be made extremely compact. The operation lever 40, such as a T-shaped side view as an example of the rotation member, has a horizontal rotation support shaft 4 at the bottom thereof.
It is configured to rotate about 1. The thermal head 8 is fixed to one lower surface of the horizontal arm 40a of the operation lever 40, and the heat generating portion 8 of the thermal head 8 is fixed to the operation lever 40 by a biasing means such as a torsion spring (not shown).
a is constantly pressed against the upper surface of the platen roller 9. Further, a pair of cam means 42 that rotate integrally with the operation lever 40 are provided on the left and right sides of the main body case on the outer periphery of the horizontal rotation support shaft 41, and the left and right sides of a paper guide 43 that is long in the width direction of the paper 4. It is configured to actuate both sides simultaneously. The cam means 42 is arranged so as to face a contact portion 44 formed on the back side of the paper guide 43. The paper guide 43 is constantly biased by the biasing means 16 so as to be pressed against the outer peripheral surface of the platen roller 9.

The push button portion 45 on the upper surface of the other arm portion of the operating lever 40 projects outward from the operating hole 46 formed in the fixed cover body 3. According to this configuration, when the paper jam occurs, when the push button portion 45 is pushed in, the operation lever 40 rotates clockwise in FIG. 9, and the heating element portion 8a of the thermal head 8 is pushed from the upper surface of the platen roller 9. At the same time as it is separated, the contact portion 4 is moved through the cam means 42.
4, the paper guide 43 can be retracted against the urging force of the urging means 16 and separated from the outer periphery of the platen roller 9, so that the paper 4 wound around the outer periphery of the platen roller 9 can be removed very easily. is there.

It should be noted that one or a plurality of engaging claws 38 are provided on the free end edge of the lid 13 at a substantially central portion in the width direction orthogonal to the conveying direction of the sheet 4 so as to extend in the conveying direction, while the separation is performed. If the block 12 is provided with a locking groove 39 that is parallel to the upper surface of the main body case 2 of the lid body 13 and is locked when it is advanced in the direction of the separation block 12 (FIGS. 5B and 6).
(See (a)) Even if the lid body 13 is thin and easily bends, the free end side of the lid body 13 is firmly fixed to the main body case 2.
Can be fixed closed.

[0046]

As described above in detail, in the printer apparatus according to the first aspect of the present invention, the conveyed recording medium is placed on the outer periphery of the platen roller in the main body case for accommodating the recording medium in a stacked state. In a printer device comprising a paper guide for guiding to the platen roller and a thermal head for forming an image on the recording medium on the outer peripheral surface of the platen roller, the paper guide and the thermal head are provided with respect to the platen roller. A release interlocking mechanism for contacting and separating is arranged in the main body case.

As described above, when the release interlocking mechanism provided in the main body case is operated, the thermal head and the paper guide can be brought into and out of contact with the platen roller with one touch at a time, so that the paper jam can be easily removed. Produce an effect.

According to a second aspect of the present invention, in the printer apparatus according to the first aspect, the release interlocking mechanism is interlocked with an opening / closing operation of a lid that can be opened / closed with respect to the main body case. The thermal head is configured to come into contact with and separate from the platen roller. According to this structure, since the release interlocking mechanism can be operated in conjunction with the opening / closing operation of the lid lid that accompanies the paper jam removal operation, it is not necessary to operate the lid opening / closing operation and the release interlocking mechanism separately. The effect is that the operation is extremely simple.

According to a third aspect of the present invention, in the printer apparatus according to the second aspect, the release interlocking mechanism is provided with an urging means for urging the paper guide and the thermal head with respect to the platen roller. Is a reciprocally arranged member in the main body case, and a separating position for separating the paper guide and the thermal head from the platen roller against the urging force of the urging unit, and the urging unit. An operating means is provided which can be switched between an urging position in which the paper guide and the thermal head are urged against the platen roller by a force, and the operating means moves to the separated position when the lid is opened. While the paper guide and the thermal head are separated from the platen roller, the operation is urged by the closing operation of the lid. In which to move the location and configured to urge the paper guide and the thermal head against the platen roller. Therefore, the paper guide and the thermal head can be separated from the platen roller by moving the operating means in opposition to the biasing force in association with the opening operation of the lid body, and conversely,
During the closing operation of the lid, the paper guide and the thermal head can be urged against the platen roller by the urging force of the urging means, and the number of parts of the release interlocking mechanism can be reduced.

Further, in a fourth aspect of the invention, in the printer apparatus according to the second or third aspect, the release interlocking mechanism is located at either one or both of the open position and the closed position of the lid. Since the lid of the portable printer device is inadvertently opened or the actuating member is displaced from the proper position in the opened state, the lid is locked again. It is possible to reliably prevent that the release interlocking mechanism cannot operate because the body cannot be moved in the closing direction.

According to a fifth aspect of the present invention, in the printer apparatus according to any one of the second to fourth aspects, the lid is a pivoted position that is wide open with respect to the open surface of the main body case. Since the lid body can be reciprocated in parallel with the open surface of the body case and can be locked to the body case when the lid body moves in the closing direction, the lid body can slide and rotate. When the opening / closing operation can be performed in combination with the movement, it is possible to prevent the lid from being opened accidentally.

According to a sixth aspect of the present invention, in the printer apparatus according to any of the third to fifth aspects, the actuating means are provided on both sides of the main body case along the platen roller, and the lid is provided. The body is provided with an action portion that engages with the actuating means and moves.

By thus providing the operating means on both the left and right sides of the main body case, the pair of left and right operating means can be operated simultaneously with the opening / closing operation of the lid body, and the thermal head long along the longitudinal direction of the platen roller. Further, it is possible to easily move the paper guide in and out of parallel with the platen roller.

According to a seventh aspect of the present invention, in the printer device according to the fifth or sixth aspect, the operating means includes a separating position for separating the paper guide and the thermal head from the platen roller and the paper guide and the thermal head. A cam means for switching between an urging position for urging the platen roller and an actuated portion for switching and moving the cam means are provided, and the lid can be engaged with the actuated portion. An operating portion is provided, and the lid is moved in parallel with the open surface of the main body case, so that the cam means is switched and moved via the operated portion. As described above, the operating means in each of the release interlocking mechanisms is composed of the operated portion and the cam means which are interlocked with the opening / closing operation of the lid body, and is always operated by the urging force of the urging means provided in the paper guide or the thermal head. Since those paper guides and thermal heads that are pressed against the platen roller are separated by the cam means as the lid moves in parallel with the open surface of the main body case, the structure of the parts is simplified. In addition, since the number of parts can be reduced, the printer device can be made compact.

On the other hand, the invention described in claim 8 is the same as claim 1.
In the printer device according to the item (1), the release interlocking mechanism is connected to the rotating member that rotates the thermal head to and away from the platen roller, and is connected to the rotating member, and is connected to the platen roller against the biasing force. On the other hand, a cam means for separating the paper guide is provided,
Since the paper guide and the thermal head can be released by a simple operation of rotating the rotating member in the release interlocking mechanism, the number of parts of the release interlocking mechanism is small, and the configuration can be made extremely simple, resulting in a compact printer device. It has the effect of being able to contribute.

The invention described in claim 9 is the same as claim 8
In the printer device described in the paragraph (1), the cam means is rotatably arranged at both left and right sides of the main body case, and the rotation fulcrum of the operating member is provided at the position of the cam means. By using the same rotation fulcrum for the rotation of the member and the rotation of the cam means, it is possible to further simplify the configuration.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a printer device of the present application.

FIG. 2 is a schematic plan view of a main body case.

FIG. 3 is a perspective view of a paper package.

FIG. 4 is a perspective view of a pickup roller portion in the main body case.

5A is a side cross-sectional view of the printer device, and FIG. 5B is a cross-sectional view of a left side portion of the main body case with the lid opened.

FIG. 6A is an enlarged side view of the printing mechanism section, and FIG. 6B is a side view of the gear transmission mechanism.

FIG. 7 is an exploded perspective view of components of the release interlocking mechanism.

FIG. 8A is a cross-sectional view of a state in which the paper guide and the thermal head are pressed against the platen roller when the lid is closed, and FIG. 8B is a retracted position of the lid and the paper guide and the thermal head are released. FIG. 3C is a cross-sectional view showing the state in which the lid is rotatable.

FIG. 9 is a cross-sectional view showing a second embodiment of the release interlocking mechanism.

[Explanation of symbols]

1 Printer device 2 body case 4 Paper as recording medium 5 paper packages 8 thermal head 9 Platen roller 10 Paper Guide 11 Pickup roller 12 separate blocks 13 Lid 15, 16, 19 Biasing means 18 Actuating means 24 Guide support block 25 lock pieces 26 Vertical guide groove 27 Side guide groove 28 Actuating member 29, 30 regulation block 32 Resin spring body 33 interlocking link 36 1st cam body 37 Second Cam Body 38 Engaging claw 39 Locking groove

Continued front page    F-term (reference) 2C058 AB16 AC06 AC12 AD01 AE02                       AE10 AF04 AF31 DA10                 2C059 DD03 DD10 DD20                 2C065 AA01 AB01 DA03 DA29 DA34                       DA37                 3F101 FB14 FE04 FE08 LA07 LB03

Claims (9)

[Claims] 1. A paper guide for guiding a conveyed recording medium to the outer periphery of a platen roller in a main body case for accommodating the recording medium in a stacked state, and the recording medium on the outer peripheral surface of the platen roller. In a printer device including a thermal head for forming an image on a sheet, a release interlocking mechanism for contacting and separating the paper guide and the thermal head with respect to the platen roller is arranged in the main body case. Printer device. 2. The release interlocking mechanism is configured to bring the paper guide and the thermal head into and out of contact with the platen roller in conjunction with an opening / closing operation of a lid that can be opened / closed with respect to the main body case. The printer device according to claim 1, wherein: 3. An urging means for urging the paper guide and the thermal head with respect to the platen roller, wherein the release interlocking mechanism is reciprocally arranged in the main body case, and the urging means of the urging means is provided. A separation position for separating the paper guide and the thermal head from the platen roller against the biasing force, and a biasing force that biases the paper guide and the thermal head against the platen roller by the biasing force of the biasing means. An operating means for switching between a position and a position, and during the opening operation of the lid body, the operating means moves to a separating position to separate the paper guide and the thermal head from the platen roller, and the lid body. The closing operation of the above causes the operation to move to the urging position, and the paper guide and the therm The printer device according to claim 2, wherein the printer head is configured to be biased. 4. A lock means for holding the release interlocking mechanism in a locked state at either one or both of an open position and a closed position of the lid body, and further comprising: The printer device according to 1. 5. The lid is capable of reciprocating in a rotational position that is wide open with respect to the open surface of the main body case and parallel to the open surface of the main body case, and in the closing direction of the lid. The printer device according to any one of claims 2 to 4, wherein the printer device is configured so that it can be locked to the main body case when moved. 6. The actuating means are provided on both sides of the main body case along the platen roller, and the lid body is provided with an action portion for engaging with and moving the actuating means. The printer device according to any one of claims 3 to 5. 7. The cam means for switching the operating means between a separating position for separating the paper guide and the thermal head from the platen roller and an urging position for urging the paper guide and the thermal head against the platen roller, and the cam means. An actuating part for switching and moving the cam means, the lid is provided with an actuating part engageable with the actuated part, and the lid is moved in parallel to the open surface of the main body case. 7. The printer device according to claim 5, wherein the cam means is switched and moved via the actuated portion. 8. The release interlocking mechanism includes a rotating member for rotating the thermal head in and out of contact with the platen roller, and the rotating member is connected to the rotating member and resists an urging force with respect to the platen roller. The printer device according to claim 1, further comprising a cam unit for separating the paper guide. 9. The cam means according to claim 8, wherein the cam means is rotatably arranged at both left and right side portions of the main body case, and a rotation fulcrum of the actuating member is provided at a position of the cam means. The printer device described.