JP2003321152A - Paper guide device for mini-printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper guide device for a mini-printer which can be varied in its guide width for guiding paper by a simple operation. <P>SOLUTION: This paper guide device comprises a lower guide frame installed in one portion of a mini-printer main body, an upper guide frame assembled to be faced each other with a space allowing passing of the paper in a front face of the lower guide frame, and protruded with a pair of guide pieces with a space of a width around a first paper width to guide the first paper in its backface, and an auxiliary guider coupled selectively and detachably in a position with a space around a width of a second paper having a width narrower than the first paper from one of the guide pieces between the paired guide pieces to guide the second paper cooperated with the one of the guide pieces. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper guide device for a mini-printer, and more particularly to a mini-paper guide device configured so that the guide width can be easily changed so that papers of different widths can be used together. The present invention relates to a paper guide device for a printer.

[0002]

2. Description of the Related Art Generally, a mini-printer is used for issuing a receipt on which a product name, price, etc. are printed, and a printer body, a paper supply section provided in the body,
Includes a printing unit that prints the product name and price on the paper, a guide device that guides the paper to the printing unit for easy printing, and a cutting unit that cuts the paper to an arbitrary length when printing is completed. Composed of.

In the mini-printer, a 2-inch width paper and a 3-inch width paper are mainly used depending on the application, but the structure is wound into a roll and rotatably mounted in the printer for continuous use. Is configured as follows. FIGS. 1 and 2 show a conventional paper guide device for a mini-printer, which is installed in a printer and guides paper to a printing unit. As shown in the figure, the conventional paper guide device for a mini-printer includes a lower guide frame 1 and an upper guide frame 2 which are face-to-face arranged with a space enough for the paper to pass through and fixedly assembled by a screw S. . Here, the paper is A on the drawing.
It is drawn into the portion and discharged from the portion B in a substantially horizontal state. The upper guide frame 2 is composed of a right guider 4, a left guider 3 and a central guider 5. The right guider 4 is configured such that the right end thereof protrudes rearward and guides one end of the papers P1 and P2, and is fixed to the front right side of the lower guide frame 1 by a screw S. The left guider 3 is configured such that the left end thereof projects rearward and guides the other end of the papers P1 and P2, and is assembled so that it can be selectively fixed to the left side or the middle part of the lower guide frame 1 by a screw S. Here, when the left guider 3 is assembled on the left side of the lower guide frame 1, a predetermined space is provided between the left guider 3 and the right guider 4, and when the left guider 3 is assembled on an intermediate portion of the lower guide frame 1, the right guider 4 is installed. You will be in direct contact with. That is, the distance between the left end of the left guider 3 and the right end of the right guider 4 becomes the guide width for guiding the paper, but when the left guider 3 is fixed to the middle part of the lower guide frame 1, The guide width between the right guiders is 2 inches, and when the left guider 3 is fixed to the left side portion of the lower guide frame 1, the guide width between the left guider and the right guider is 3 inches. When the left guider 3 and the right guider 4 are separated from each other by a predetermined distance in order to make the guide width 3 inches, the central guider 5 is interposed and supported between the left guider and the right guider. At this time, the central guider 5 functions as a spacer. On the other hand, the lower guide frame 1 is the right guider 4
A right side portion where a screw S for fixing the left guider 3 is fastened, a left side portion where a screw S for fixing the left guider 3 is fastened,
Further, screw holes are provided at corresponding positions in the intermediate portion and the intermediate portion, respectively. The paper guide device configured as described above adjusts the guide width by adjusting the position of the left guider.
The inch-width paper P1 and the 2-inch width paper P2 can be accommodated together.

However, the conventional paper guide device for mini-printers has a drawback that the work of adjusting the positions of the left and right guiders according to the width of the paper is troublesome. In other words, in order to adjust the guide width, it is necessary to loosen the screw fixing the left guider, move the left guider, and then fix it with the screw again, so the conversion work is complicated and the work process is complicated. Because of the large number, there is a drawback that assembly failure occurs and workability deteriorates. Further, since the guide width is adjusted while moving the left guider, the outer shape of the frame may be damaged due to a collision during work.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned various problems of the prior art, and an object of the present invention is to provide a paper guide device for a mini-printer which can easily change a guide width for guiding paper. To provide.

[0006]

In order to achieve the above object, the present invention provides a lower guide frame 10 installed in a part of a mini-printer main body, and an interval such that a paper passes through the front surface of the lower guide frame. Upper guide frame 2 in which a pair of guide pieces 22 are projectingly provided on the back surface at a distance of the width of the first paper so that the back surface can guide the first paper.
0 and the pair of guide pieces are selectively detachably coupled to one of the guide pieces at a position spaced from the one of the guide pieces by the width of the second paper having a width narrower than that of the first paper. Provided is a paper guide device for a mini-printer, which comprises an auxiliary guider 30 for guiding the second paper in cooperation with one guide piece.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view showing the construction of a paper guide device for a mini printer according to the present invention, FIGS. 4 and 5 are front and side views showing the assembled state of the present invention, and FIG. FIG. 9 is a front view for explaining an assembly change state of the guide width according to the width of the paper.

The present invention is an apparatus which is installed in a part of a mini-printer and guides paper to a printing section.

Referring to FIGS. 3 to 5, the paper guide device for a mini-printer according to the present invention faces the lower guide frame 10 and the front surface of the lower guide frame with a space sufficient for the paper to pass therethrough. Upper guide frame 20 assembled and fixed by screws S
And the lower guide frame 10 and the upper guide frame 20
And an auxiliary guider 30 for selectively adjusting the width of the paper guide. And
Lower guide frame 10 assembled facing each other
A guide inlet A through which the paper is drawn is formed in an upper portion between the upper guide frame 20 and the upper guide frame 20, and a guide outlet B is formed in a bottom portion. The paper discharged from the guide outlet maintains a substantially horizontal state for easy printing.

A pair of assembly grooves 12 are provided on the front surface of the lower guide frame 10 downwardly from the upper end at a distance of the width of the first paper so that the first paper P1 having a width of 3 inches can pass therethrough. Between the pair of assembling grooves, an anti-movement hole 14 is vertically provided at a distance from one of the assembling grooves as much as the width of the second paper P2 having a width of 2 inches smaller than that of the first paper. At this time, the assembly groove 1
2 is long from the upper surface to the lower end, and
Is vertically provided downward from the upper end of the front surface and is assembled into the groove 1.
It has a length shorter than 2. An assembly hole 16 is provided near the outside of the assembly groove 12, and a coupling hole 18 is provided below the assembly hole 16. On both sides of the back surface of the upper guide frame 20, guide pieces 22 are provided to be inserted into the respective assembly grooves 12, and the pair of guide pieces 22 have a distance of 3 inches so that the first paper can be guided. Also,
A pair of support projections 24, which are separated by a predetermined distance, are provided so as to project upward so that a locking groove 24a is provided at a position corresponding to the floating prevention hole 14 at a part of the upper end. That is, the support protrusion 24
The space serves as a locking groove 24a. Further, an assembly pin 26 protruding rearward is formed at a portion of the lower guide frame 10 corresponding to the assembly hole 16, and a fastening hole 28 is provided at a position corresponding to the coupling hole 18 so that the screw S can be fastened. The auxiliary guider 30 has a slider 32 that is assembled by being fitted into the anti-movement hole 14 in a sliding manner, and has a locking hook 3 that is engaged with the locking groove 24a at the upper part of the slider.
4 is protruded forward, and a tension groove 36 having an upper opening is provided between the slider and the locking hook so as to have an elastic force. Further, a locking protrusion 38 is provided on the rear surface of the upper end of the slider 32 so as to be locked to the upper end of the lower guide frame 10, and the lower end of the locking protrusion 38 is provided with an upper end of the lower guide frame 10 and an anti-movement hole. A contact groove 39 is provided so that the contact groove 39 can be in close contact with the locking portion provided between the contact groove 39 and the contact portion 14.

Next, the assembling and operation effects of the present invention thus constructed will be described.

First, when assembling the lower guide frame 10 and the upper guide frame 20, the guide pieces 22 and the assembling pins 26 of the upper guide frame 20 are fitted in the assembling grooves 12 and the assembling holes 16 of the corresponding lower guide frame 10. After assembling so as to be inserted, the screws S are fastened to the fastening holes 28 of the upper guide frame 20 from the rear side of the lower guide frame 10 through the coupling holes 18, and they are fixed to each other. According to the present invention thus assembled, the distance between the guide pieces 22 of the upper guide frame 20 is 3 inches, as shown by the solid line in FIG. It is used when guiding to (not shown). That is, the first paper P1 drawn into the guide inlet A on the top surface and discharged from the guide outlet B on the bottom surface
Are ejected in a substantially horizontal state for easy printing. When it is desired to use the second paper P2 having a width of 2 inches, the auxiliary guider 30 is used as shown by the phantom line in FIG.
Use to adjust the paper guide width to 2 inches. That is, the auxiliary guider 30 is sandwiched between the lower guide frame 10 and the upper guide frame 20 so that the slider 32 of the auxiliary guider 30 is set in the floating prevention hole 14 of the lower guide frame 10. Then, the slider 32 is easily inserted while the upper portion is deformed inward by the tension groove 36. At the time when the slider 32 is set in the anti-movement hole 14, the slider 32 is restored and at the same time, the slider 32 comes into close contact with the anti-movement hole 14 and the auxiliary guider 3
It is supported so that 0 does not move. At the same time, the locking hook 34 of the auxiliary guider 30 is engaged with the upper guide frame 2.
It is engaged with the locking groove 24a of 0 and is supported by the support protrusion 24 so as not to move. In this way, the auxiliary guider 3
Since 0 is sandwiched between the lower guide frame and the upper guide frame so as not to move, the second paper P2 is stably guided by cooperation with one of the guide pieces 22. On the other hand, when the auxiliary guider 30 is assembled by being interposed between the lower guide frame and the upper guide frame, the auxiliary guider 30 is prevented from falling downward by the locking hooks 34 and the locking protrusions 38, that is, the auxiliary guider 30 is interposed. Then, the locking hook 34 is engaged with the locking groove 24a and the locking projection 38 is locked on the upper end of the lower guide frame 10, so that even if pressure is applied from above, the auxiliary guider 3
0 maintains the assembled state without falling downward. Of course, after the auxiliary guider 30 is assembled, the upper end of the slider 32 is locked to the upper end of the floating prevention hole 14, so that the auxiliary guider 30 is prevented from being separated upward. When the auxiliary guider 30 assembled in this way is to be separated,
When the locking projection 38 is pressed so that the upper end of the slider 32 is separated from the upper end of the anti-movement hole 14 by the action of the tension groove 36, the slider 32 is easily separated by pulling it upward.

As described above, according to the present invention, the auxiliary guider 30 is connected to the lower guide frame 10 and the upper guide frame 2.
When intervening between 0 and 0, the second paper P having a width of 2 inches
2 can be used, and when the auxiliary guider 30 is separated, it is possible to use the first paper having a width of 3 inches, so that the papers having different widths can be used together. Further, since the guide width for guiding the paper can be easily changed only by attaching / detaching the auxiliary guider 30, the man-hours for changing the guide width are reduced to improve the assemblability, and the defect rate due to the change of the guide width is reduced. Is minimized. In addition, the work of changing the guide width is quick and easy, so that it can provide convenience to the consumer, which makes it more competitive than other products. On the other hand, FIGS. 7 and 8 are an isolated perspective view and a front view showing another embodiment of the present invention, respectively.

Referring to the figure, only the differences from the above-described embodiment will be described. In this embodiment, the auxiliary guider 13 will be described.
Widely configured so that the width of 0 is about 1 inch,
The structure of the immobilization prevention hole 114 and the locking groove 124a is changed depending on the width of the auxiliary guider 130. That is, the anti-movement hole 114 is also configured to have a width of 1 inch, and the locking groove 1
24 a is formed between the guide piece 122 and one support protrusion 124. Of course, this embodiment having the above-described structure also has the same effects as the above-described embodiment. As described above, the present invention does not limit the width of the auxiliary guider and can be freely changed.

Further, although the present invention uses a 3-inch wide paper and a 2-inch wide paper in one embodiment,
The width of the paper is not necessarily limited to this, but the width of the paper may be changed according to the application, and the installation position of the auxiliary guider may be adjusted according to the width of the paper.

[0017]

As described above, according to the present invention, since the guide width for guiding the paper can be changed only by attaching and detaching the auxiliary guider, the work of changing the guide width is very easy and Since different widths of paper can be used together in one product, it is highly economical.

[Brief description of drawings]

FIG. 1 is a front view showing a conventional paper guide device for a mini-printer, showing a state of being assembled with a guide width of 3 inches.

FIG. 2 is a front view showing a conventional paper guide device for a mini-printer, showing a state in which the guide width is set to 2 inches and assembled.

FIG. 3 is an exploded perspective view showing a configuration of a paper guide device for a mini printer according to the present invention.

FIG. 4 is a front view showing an assembled state of the paper guide device for a mini printer according to the present invention.

FIG. 5 is a side view showing an assembled state of the paper guide device for a mini printer according to the present invention.

FIG. 6 is a front view for explaining an assembly change state of the guide width according to the width of the paper in the present invention.

FIG. 7 is an exploded perspective view showing another embodiment of the paper guide device for a mini printer according to the present invention.

FIG. 8 is a front view showing another embodiment of the paper guide device for the mini-printer according to the present invention.

[Explanation of symbols]

10 Lower guide frame 12 Assembly groove 14 Floating prevention hole 16 Assembly hole 18 coupling holes 20 Upper guide frame 22 Guide piece 24 Support protrusion 24a locking groove 26 Assembly Pin 28 Fastening holes 30 Auxiliary guider 32 slider 34 Locking hook 36 Tension groove 38 Locking protrusion 39 Close groove A guide entrance B guide exit P1 first paper P2 Second Paper S screw

Claims (9)

[Claims] 1. A lower guide frame (10) installed on a part of a mini-printer main body, and assembled on the front surface of the lower guide frame so as to face each other with a space enough for paper to pass through. An upper guide frame (20) having a pair of guide pieces (22) protruding from the first paper so as to be able to guide the first paper, and either of the pair of guide pieces. One guide piece (2
2) to 2nd having a width narrower than the 1st paper (P1)
An auxiliary guider (3) that is selectively detachably coupled to a position spaced by the width of the paper (P2) and guides the second paper (P2) in cooperation with one of the guide pieces.
0) and a paper guide device for a mini printer. 2. The guide piece (2) of the upper guide frame (20) is provided on the front surface of the lower guide frame (10).
A pair of assembly grooves (16) so that a part of 2) is inserted.
A vertical movement preventing hole (14) is provided between the assembly grooves at a position where the auxiliary guider (30) is connected, and a part of an upper end of the upper guide frame (20) is provided.
A pair of locking protrusions (24) spaced apart by a predetermined distance are provided so as to project upward so that the locking groove (24a) is provided at a position corresponding to the anti-movement hole, and the auxiliary guider (30) moves freely. A slider (3) that is assembled by being slid into the prevention hole (14)
2), and the locking groove (24
A locking hook (34) engaged with a) is projected forward and a tension groove (36) having an upper opening is provided between the slider (32) and the locking hook (34) so as to have an elastic force.
The paper guide device for a mini printer according to claim 1, further comprising: 3. The slider (32) of the auxiliary guider.
3. The paper guide device for a mini printer according to claim 2, wherein a locking protrusion (38) is provided on a rear surface of an upper end of the lower guide frame so as to be locked to an upper end of the lower guide frame (10). 4. The paper guide for a mini printer according to claim 1, wherein the first paper (P1) has a width of 3 inches and the second paper (P2) has a width of 2 inches. apparatus. 5. The paper guide device for a mini printer according to claim 1, wherein the lower guide frame (10) and the upper guide frame (20) are coupled to each other by a screw (S). 6. The lower guide frame (10) is provided with a vertical movement preventing hole (14) at a position where the auxiliary guider (30) is coupled to the front surface of the lower guide frame (10), and an upper end of the upper guide frame (20) is provided with: The support protrusion (24) is upwardly spaced from the guide piece (22) at a predetermined distance so that the locking groove (24a) is provided between the guide piece (22) and a position corresponding to the play prevention hole. And the auxiliary guider (30) is slidably fitted into the anti-movement groove (14) to assemble the slider (3).
2), and the locking groove (24
A locking hook (34) engaged with a) is projected forward and a tension groove (36) having an upper opening is provided between the slider (32) and the locking hook (34) so as to have an elastic force.
The paper guide device for a mini printer according to claim 1, further comprising: 7. The mini-printer is installed in a part of the main body,
On the front side, a pair of assembling grooves (16) are formed at a distance from each other and extend downward from the upper end to allow passage of the first paper.
Is provided between the pair of assembly grooves, and a vertical movement preventing hole (1) is provided at a distance from one of the assembly grooves that is the width of the second paper having a width narrower than that of the first paper.
4) provided with a lower guide frame (10), and a guide which is assembled on the front surface of the lower guide frame with a space enough for the paper to pass through, and is inserted into the assembly grooves on both sides of the rear surface. A pair of support protrusions (24) spaced apart by a predetermined distance is provided upward so that a piece (22) is provided in a projecting manner and a locking groove (24a) is provided at a position corresponding to the anti-movement hole at the upper end. A projecting upper guide frame (20) and a slider (32) assembled by being fitted in the anti-movement hole by a sliding method are assembled, and the upper part of the slider is engaged with the engaging groove. A hook (24) is provided so as to project forward, a tension groove (36) having an upper opening is provided between the slider and the locking hook so as to have an elastic force, and a lower portion is provided on a rear surface of an upper end of the slider (32). Guy Frame (10) paper guide apparatus for a mini printer locking projection (24) is equal to or consisting of a projecting auxiliary guider (30) as engaged with the upper end of the. 8. The width of the first paper (P1) is 3 inches,
The paper guide device for a mini printer according to claim 7, wherein the width of the second paper (P2) is 2 inches. 9. The paper guide device for a mini printer according to claim 7, wherein the lower guide frame and the upper guide frame are coupled to each other by a screw (S).