JP2673033B2 - Printer paper guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to, for example, a label printer that prints a barcode, and is used for introducing a paper into the printer body and guiding it to the printer side. Regarding the guide device.

[Prior Art] A conventional paper guide device arranged on the paper feed port side of a printer body includes a guide unit arranged in the printer body and an introduction guide plate arranged in series with the unit. There is.

The unit has a fixed guide and a pair of movable guides that are moved toward and away from each other in association with each other along the width direction of the guide. These movable guides are interlocked by a rack and pinion mechanism.

The movable guide is adjusted and arranged at a position corresponding to the width of the paper to be guided. This adjustment is made from above the guide unit with the case of the printer body removed. Further, the movable guide is held at the adjusted position by friction at the contact portion of the rack and pinion mechanism and the like.

The introduction guide plate has an exposed portion that is provided outside the printer body. Paper inserted from the outside of the printer body is guided toward the guide unit along the upper part of the introduction guide plate. Then, the paper thus introduced is guided toward the printer through the gap between the fixed guide and the movable guide which is close to the upper surface.

[Problems to be Solved by the Invention] The conventional paper guide device described above is inconvenient because the case of the printer body must be removed as described above when adjusting the position of the movable guide. In addition, since the movable guide is not particularly fixed, it may tilt or tilt due to the influence of vibrations generated by the operation of the printer.
There is a possibility that the paper may be moved in the width direction, and accordingly, there is a problem that the paper cannot be guided correctly.

It is an object of the present invention to provide a paper guide device for a printer that can adjust the position of a movable guide according to the width of paper without removing the case of the printer body and can guide the paper correctly.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the paper guide device of the present invention, an elongated hole extending in the width direction is formed in the exposed portion of the introduction guide that is provided outside the printer body. A fixed plate that intersects with the elongated hole and overlaps the surface of the exposed portion is connected to one of a pair of movable guides included in the guide unit, and is provided through the fixed plate and the elongated hole. And a fastening means for fixing the fixed plate moved to an arbitrary position together with the movable guide to the exposed portion.

[Operation] According to the present invention, since the fixed plate connected to the movable guide is located outside the printer body, this fixed plate or the tightening means can be used as an operation unit when moving the movable guide according to the paper width. . At that time, the tightening means is in a loose state and can move along the elongated hole formed in the exposed portion of the introduction guide plate, so that the tightening means does not interfere with the adjusting operation of the movable guide. Then, by tightening the tightening means, the fixed plate is fixed to the exposed portion of the introduction guide plate, so that the movable guide can be fixed at the adjustment position at the same time.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In FIG. 3 to FIG. 5, reference numeral 1 denotes a printer main body of a label printer, and a case 2 of the main body 1 includes a first case plate 2a fixed to the rear surface of the main body and fixedly screwed, and the main body 1 described above.
The second case plate 2b which is detachably provided on most and one side of the upper surface of the main body 1 and is detachable by partially covering the upper surface of the main body 1 and the other side surface so as to cover a circuit section (not shown). It has a third case plate 2c provided and a fourth case plate 2d that is detachably provided on the front surface of the main body 1.

As shown in FIG. 5, the printer body 1 has a printing device 3 built in at the front side thereof and
A paper guide device 4 which will be described later is arranged on the rear side, and a drive roller 5 for feeding the paper is provided between them.
And various paper guide plates 6 are built in.

The printing device 3 has a printing head 7 including a line thermal head and the like, and a platen 8 which is made of a roller rotated by the power of a stepping motor and which is brought into contact with and separated from the printing head 7 from below. In addition, 9 in FIG. 5 has shown the rotation fulcrum axis | shaft when the platen 8 contact | connects and separates.

A ribbon device 10 is built in the main body 1 above the printing device 3. The transfer ribbon of the ribbon device 10 travels in synchronization with the feeding of the mount A. The printing device 3, the paper guide device 4, the ribbon device 10 and the like built in the printer body 1 are exposed by removing the second case plate 2b.

The mount A is a continuous long paper, and a label (not shown) is attached to one surface of the mount A at predetermined intervals. This mount A is the paper guide device 4 described above.
The movement of the driving roller 5 is fed to the printing device 3 while the movement in the width direction is regulated by the printing device 3, and the label is printed by the printing device 3, and then the fourth case plate.
It is sent out of the printer body 1 through the outlet 10 of 2d.

The paper guide device 4 includes a guide unit 11 made of synthetic resin arranged in the printer body 1 and an introduction guide plate 21 made of sheet metal arranged in series on the mount receiving side of the unit 11.

As shown in FIGS. 1 and 2, the introduction guide plate 21 is
The upper portion thereof has an arcuate cross section and is bent forward, and has a substantially vertical exposed portion 22 provided exposed on the rear surface of the printer body 1. An elongated hole 23 extending in the width direction of the exposed portion 22 is formed on one end side of the exposed portion 22 in the width direction.

The back surface of the exposed portion 22 is located in the vicinity of the long hole 23.
A detent portion 24 parallel to 23 is provided. In the case of the present embodiment, the detent portion 24 is formed by a flange in which the lower edge of the exposed portion 22 is bent forward.

On the rear surface of the printer body 1, as shown in FIGS. 4 and 5, a support plate 23 is located above the introduction guide plate 21.
Are fixed, and the lower edge of this plate 25 is bent forward. This lower edge faces the upper part of the introduction guide plate 21, and a paper feed port 26 is formed between them. As shown in FIG. 3, a mount A introduced along the upper portion of the introduction guide plate 21 is passed through the paper feed port 26, and the mount A is supplied to the guide unit 11 by this introduction.

Reference numeral 2e in FIG. 4 denotes a first case plate 2a for exposing the support plate 25 and the exposed portion 22 to the outside of the printer body 1.
It is a notch formed in. Mount holder on the support plate 23
27 (see FIGS. 3 and 5) is detachably attached, and the mount A is supported on the roll A in a rolled state. Reference numeral 28 in FIG. 4 is a mounting hole for the mount holder 17.

As shown in FIG. 1, the guide unit 11 includes a horizontal panel-shaped fixed guide 12 and a pair of left and right movable guides.
It has a fixed pin 12 and a rotatable pinion 14 located at the center of the fixed guide 12 in the width direction and attached to the back side of the guide 12. The rear edge of the fixed guide 12 is flush with the upper front edge of the introduction guide plate 21. In this fixed guide 12, a pair of grooves 15 located on both sides of the pinion 14 are fixed guides.
It is provided so as to extend in 12 width directions.

The pair of movable guides 13 includes a sliding portion 16 that slides on the upper surface of the fixed guide 12 along the width direction of the fixed guide 12, and a guide plate portion 17 that faces the upper surface of the fixed guide 12 with a slight gap. And the operation plate section that is erected vertically
18 and 18 are integrally molded, and the molded product is rack 19
Is formed by mounting. Fixed guides for each rack 19
The pinion 14 is disposed on the back side of the pinion 12 and sandwiches the pinion 14 from the front and back thereof, and is engaged with the pinion 14 respectively. A connecting portion (not shown) between the rack 19 and the molded product penetrates the groove 15.

The sliding portion 16 of each movable guide 13 extends in the front-rear direction,
The rear end 16a projects into the paper feed 26 and is positioned on the introduction guide plate 21. The upper end of the fixed plate 31 is screwed to the rear end portion 16a of the one sliding portion 16. The fixing plate 31 is disposed so as to intersect with the elongated hole 23 and overlap the surface of the exposed portion 22, and is fixed to the exposed portion 22 by a fastening means 32 at an arbitrary moving position.

The tightening means 32 is formed to have a screw 33 and a nut 23 as shown in FIG. As the screw 33, a screw that can be manually turned without using a tool such as a screwdriver, for example, a decorative screw or a thumbscrew is adopted. In addition, this embodiment shows a case where a decorative screw is adopted, and the screw head is provided with a groove 33a so that a coin or the like can be rotated. The screw 33 is screwed into the nut 34 through the hole 31a provided in the lower portion of the fixed plate 31 and the elongated hole 23. The nut 34 is engaged with the detent portion 24 to be detented, and in this embodiment, a plate nut is used because the detent portion is a flange. Also screw
A retaining ring 35 is attached to the tip of 33 to prevent the nut 34 from coming off from the screw 33.

In the label printer having the above-described configuration, in order to set the backing sheet A, first, the screw 33 is manually turned without using a tool, and the tightening by this and the nut 34 is loosened to expose the exposed portion 22.
After fixing the fixing plate 31 to the
The fixing plate 31 is moved in the width direction of the introduction guide plate 21 via 33. This movement is possible by moving the screw 33 in the long hole 23. If you loosen the screw 33 too much, the nut 34
Since it is prevented from coming off by the retaining ring 35, the tightening means 32 will not be disassembled.

By the above moving operation, one movable guide 13 is moved along the width direction of the fixed guide 12 via the fixed plate 31, and the pinion 14 is rotated via the rack 19 of the one movable guide 13. . Therefore, through the rack 19 of the other movable guide 13 meshing with the pinion 14, the other movable guide 13 is moved in the width direction of the fixed guide 12 in the direction opposite to the moving direction of the one movable guide 13. Be moved.

That is, in this way, the movable guides 13 of the guide unit 11 are moved by an operation from the outside of the printer body 1 so that the distance between the sliding portions 16 can be adjusted to the width of the mount A to be used. .

Then, after this width adjustment, tighten the screw 33,
The exposed portion 22 and the fixing plate 31 are provided between the screw 33 and the nut 34.
Tighten. By doing so, the fixing plate 31 is exposed to the exposed portion 22.
Can be fixed against. Therefore, it is possible to prevent the movable guides 13 of the guide unit 11 from moving in the width direction of the fixed guide 12 via the fixed plate 31 regardless of the action of vibration and the like. Guide 13
Can be prevented from tilting with respect to the regular feeding direction of the mount A.

Therefore, the mount A that moves toward the printing device 3 while being prevented from being lifted by the guide plate portion 17 of the movable guide 13 can be correctly guided along the sliding portion 16 of the movable guide 13, and the correct guide state can be obtained. Can be maintained.

When replacing the transfer ribbon, the second case plate
When 2b is removed, the upper part of the guide unit 11 is opened. In this state, the tightening means 31 is loosened, and then the operation plate portion 18 of the movable guide 13 is grasped to move the movable guide to the width of the mount A. Of course, 13 can be combined.

[Advantages of the Invention] In the paper guide device of the present invention described above, the fixed plate connected to the movable guide of the guide unit,
Also, the tightening means for fixing the fixed plate to the exposed portion of the introduction guide plate is located outside the printer body, so that the tightening means can be used as the operation portion when moving the movable guide, and therefore the printer body The movable guide can be adjusted to fit the paper width without removing the case that covers the. Further, by providing the above-mentioned tightening means and providing the elongated hole for allowing the movement of this means in the exposed portion, the tightening means is tightened to fix the fixing plate to the exposed portion, and at the same time, the movable guide is fixed to the adjustment position. It is possible to prevent unnecessary movement of the movable guide,
Can guide the paper correctly.

[Brief description of the drawings]

1 to 5 show one embodiment of the present invention, FIG. 1 is a perspective view showing a paper guide device, FIG. 2 is an exploded perspective view around a tightening means, and FIG. FIG. 4 is a rear view of the label printer, and FIG. 5 is a side view schematically showing the structure of the label printer in a partial cross section. 1 ... Printer main body, 4 ... Paper guide device, 11 ...
… Guide unit, 12 …… Fixed guide, 13 …… Movable guide, 21 …… Introduction guide plate, 22 …… Exposed part, 23 …… Long hole,
31 …… Fixing plate, 32 …… Tightening means.

Claims (1)

(57) [Claims] 1. A fixed guide, and a pair of movable guides that can move toward and away from each other in association with the widthwise direction of the guide, are arranged in a printer main body, and face the fixed guide and the movable guide. A guide unit through which paper is passed, and an introduction guide plate that is arranged in series with the guide unit and has an exposed portion that is exposed outside the printer body, are provided in the exposed portion. An elongated hole extending in the width direction is provided, and a fixed plate that intersects with the elongated hole and overlaps the surface of the exposed portion is connected to one of the movable guides and passes through the fixed plate and the elongated hole. A paper guide device for a printer, comprising: tightening means for fixing the fixed plate, which is provided with the movable guide and moved to an arbitrary position together with the movable guide, to the exposed portion.