JPH085176Y2 - Printer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a printer, and in particular,
The present invention relates to a sprocket pin drive type printer devised so as to cope with a plurality of types of sprocket papers having different distances from a side portion to a pin hole.

[0002]

2. Description of the Related Art For example, in terminals of various POS systems, slips are issued by a printer using sprocket paper. This type of sprocket paper has various paper widths of 3 inches, 3.5 inches and 5 inches. On the other hand, the paper guide on the printer side is generally fixed, that is, the paper guide on the printer side is adapted to accommodate only one type of sprocket paper.

On the other hand, there has been considered a printer in which the paper guide is movable in the width direction of the sprocket paper so as to correspond to the sprocket paper having various paper widths. For example, the paper guide can be moved in the width direction of the sprocket paper so as to support both the sprocket paper having a width of 3 inches and the sprocket paper having a width of 3.5 inches. Hereinafter, an example of the configuration of such a printer will be described.

FIG. 6 is a view showing the outer appearance of the printer having the above-mentioned structure. Inside the box body 1, various mechanisms necessary for printing are built. Further, a sheet insertion port 5 for inserting a sprocket sheet (shown in FIG. 7) 3 is formed on one side surface of the box body 1 and at an upper portion thereof. A paper outlet 7 through which the printed sprocket paper 3 (for example, is output as a slip) is formed at a predetermined position on the upper wall of the box 1.

In the case of the printer having the above-mentioned structure, as shown in FIG. 7, the front end portion of the sprocket paper 3 is inserted from the paper insertion opening 5 and the operation portion 9 is rotated in a predetermined direction, so that it is not shown. Rotate the sprocket wheel. As a result, the pin holes 11 formed on both sides of the sprocket paper 3 engage with the pins of the sprocket wheel. This completes the setting.

Further, as a printer of the same type, FIGS.
As shown in FIG. 1, there are those provided with a stocker 13 in which the sprocket paper 3 is stored. The stocker 13 is composed of a stocker main body 15 and an openable / closable cover 17, and the stocker main body 15 accommodates the sprocket sheets 3 that are folded and stacked through the perforations. Then, when the above-described initial setting is performed, as shown in FIG.
Is opened and the same work as described above is performed.

By the way, various mechanisms housed in the box body 1 are constructed as shown in FIGS. 10 and 11, for example. First, there is a print head 19, and a platen 21 is arranged on the print wire side of the print head 19. The sprocket paper 3 is conveyed between the print head 19 and the platen 21, and in that state, the print head 1
Predetermined printing is performed by 9.

A drive shaft 23 is arranged on the left side of the platen 21 in the drawing, and sprocket wheels 25, 25 'are attached to predetermined positions of the drive shaft 23. Paper guides 27, 27 'are arranged outside the sprocket wheels 25, 25'. Sprocket wheels 25, 25 'and paper guides 27, 2
7'is in an integrated state. The paper guides 27, 27 'are arranged so as to be movable in the width direction of the sprocket paper 3 (vertical direction in the drawing). This is because it corresponds to the sprocket papers 3 having different paper widths. Incidentally, when the paper guides 27, 27 'are moved, the sprocket wheels 25, 25' are also moved in the same direction accordingly. Also, the paper guides 27, 2
Lock lever 2 to lock the moving position of 7 '.
9, 29 'are installed.

A guide shaft 31 is installed, and the paper guides 27 and 27 'move along the guide shaft 31. In addition, the sprocket wheels 25, 2
5'is provided with a plurality of pins 33 on its circumference at a predetermined pitch. As described above, the pin holes 11 are formed at a predetermined pitch on both sides of the sprocket paper 3, and the sprocket wheels 25, 2 are formed in the pin holes 11.
Engage the 5'pin 33 to engage the sprocket wheel 25,
The rotation of 25 'forcibly conveys the sprocket paper 3.

[0010]

The above-mentioned conventional configuration has the following problems. As described above, in the case of the printer having the above configuration, by appropriately moving the paper guides 27 and 27 'in the width direction of the sprocket paper 3, for example, the sprocket paper 3 having a width of 3 inches and the papers 3 and 3.
It is configured so as to correspond to each of the sprocket sheets 3 having a width of 5 inches. On the other hand, the sprocket paper 3 has a structure as shown in FIG. The sprocket paper 3 has dimensions such as a paper width (A), a pin hole width (B), and an interval (C) from a side portion of the sprocket paper 3 to the pin hole 11 and the like. For example, in the case of 3 inch width sprocket paper 3, A is 76 ± 0.5 (mm) and B is 66 ± 0.2 (m
m) and C are 5 ± 0.1 (mm). In the case of sprocket paper 3 with a width of 3.5 inches, A is 89 ± 0.5 (m
m), B is 76 ± 0.2 (mm), and C is 6.5 ± 0.1 (mm). What should be noted here is that the dimension (C) is 3.5.
The difference is that the sprocket paper 3 having an inch width is different from the sprocket paper 3 having a width of 3 inches. Specifically, there is a difference of about 1.5 mm on the left and right sides.

That is, the difference in the paper width (A) can be dealt with by moving the paper guides 27 and 27 '. However, the difference in the interval (C) from the side portion of the sprocket paper 3 to the pin hole 11 is different. Regarding, there is no choice but to fit one of the dimensions. This is the paper guide 27,
This is because the positional relationship between 27 'and the sprocket wheels 25, 25' is fixed. Therefore, in the conventional case, the space (C) between the sprocket sheets 3 having a width of 3.5 inches is used.
Was adjusted to. That is, as shown in FIG. 13, the gap (L) between the inner end of the paper guide 27 and the pin 33 of the sprocket wheel 25 is adjusted to the gap (C) of the sprocket paper 3 having a width of 3.5 inches. It is set so that the sprocket paper 3 having a width of 5 inches can be just inserted.

In this case, when the sprocket paper 3 having a width of 3.5 inches is used, the paper guides 27, 27 'are used.
To the paper width (A) of 3.5 inch wide sprocket paper 3
It can be dealt with by moving to a position that matches. On the other hand, 3 inch wide sprocket paper 3
When the paper guides 27 and 27 'are moved to a position that matches the paper width (A) of the sprocket paper 3 having a width of 3 inches, the pin hole 11 on the sprocket paper 3 side and the sprocket wheel 25, Pin 3 on the 25 'side
The positions of 3 do not match. This is a 3.5 inch wide sprocket paper 3 as already mentioned.
And the size (C) of the sprocket paper 3 having a width of 3 inches are different from each other. Therefore, when using the 3-inch wide sprocket paper 3, the paper guides 27, 2
7'must be set a little wider than the paper width (A) of the sprocket paper 3, which causes a gap between the sprocket paper 3 and the paper guides 27, 27 '. As a result, various problems have occurred. For example, as shown in FIG. 14, when the 3-inch wide sprocket paper 3 is inserted along the inner side surface of one paper guide 27, the pin hole 11 of the sprocket paper 3 is inserted.
The position of and the position of the pin 33 of the sprocket wheel 25 do not match, which may cause a paper jam phenomenon. Further, as shown in FIG. 15, the sprocket paper 3 may be inserted in an obliquely inclined state, and even in this case, there is a problem that a paper jam phenomenon occurs.

The present invention has been made based on such a point, and its object is to adjust the distance between the paper guide and the pin of the sprocket wheel when, for example, sprocket papers having different paper widths are used. By making it possible, it is possible to support various sprocket papers with different distances from the side part to the pin holes, which prevents unnecessary gaps between the sprocket paper and the paper guide side. And to provide a printer capable of eliminating the occurrence of a paper jam phenomenon.

[0014]

In order to achieve the above object, a printer according to the present invention has a pair of paper guides for guiding sprocket paper having pin holes on both sides, and the pair of paper guides in a contact / separation direction. A pair of sprocket wheels having a plurality of pins that move integrally by moving to engage with the pin holes of the sprocket paper on the circumference, and different paper widths by moving the pair of paper guides. In a printer configured to support multiple types of sprocket paper, various spacers with different distances from the side holes to the pin holes are provided by providing guide spacers that adjust the distance between the paper guide and the pins of the sprocket wheel. It is characterized in that it corresponds to sprocket paper. At that time, it is conceivable to separately provide the guide spacer as a separate component and attach it to a predetermined location on the printer side if necessary. Further, it is considered that the guide spacer is previously installed in a predetermined place on the printer side, and the guide spacer is projected / arranged when necessary.

[0015]

For example, in the case of a printer using plural kinds of sprocket papers having different paper widths, the paper guide and the sprocket wheel are appropriately moved to cope with the difference in the paper widths.
It may not be possible to cope with the size of each part of the sprocket paper, for example, the difference in the distance between the side part of the sprocket paper and the pin hole. Therefore, by arranging a guide spacer, the distance between the paper guide and the pin of the sprocket wheel is adjusted to fill the gap between the sprocket paper and the paper guide. It eliminates various problems caused by the gaps.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. It should be noted that the same parts as those of the related art are designated by the same reference numerals and the description thereof will be omitted. In the case of the present embodiment, when the guide spacer 101 is provided and the sprocket paper 3 having a width of 3 inches is used, the guide spacer 101 is attached to the predetermined position of the paper guides 27 and 27 ', and the sprocket paper 3 and The gap between the paper guides 27 and 27 'is filled. In other words, without moving the sprocket wheels 25, 25 ', the paper guide 2
The distance between the 7, 27 'side and the pin 33 of the sprocket wheel 25, 25' is adjusted.

The guide spacer 101 has the following structure. The guide spacer 101 is shaped so as to cover the wall-shaped guide portion 103 of the paper guide 27 from above. That is, the guide spacer 101 includes the side wall 105, the side wall 107 on the opposite side, and the both side walls 10.
It is composed of a side wall 109 connected and arranged at a right angle to 5, 107, a ceiling wall 111 and the like. A part of the side wall 105 is a locking piece 113, and a hook portion 115 is formed at the lower end of the locking piece 113. The hook portion 115 is provided so as to project inwardly in a claw shape.

The side wall 107 is a side wall 10 as shown in FIG.
It has a shape notched larger than that of No. 5. Further, a positioning portion 117 is formed on the ceiling wall 111. On the other hand, a hole 119 is formed on the guide portion 103 side, and the hook portion 115 of the locking piece 113 is formed in the hole 119.
Will be engaged. Further, the guide portion 103 has a recess 1
21 is formed, and the positioning portion 117 is engaged with the recess 121.

Although only one side of the paper guide 27 is shown in the drawing, the other side of the paper guide 27 'has the same structure, and the guide spacer 101 having the same structure is attached. .

The operation will be described based on the above configuration. First, when the sprocket paper 3 having a width of 3.5 inches is used, the guide spacer 101 according to this embodiment is unnecessary. That is, it is sufficient to move the paper guides 27, 27 'to a position corresponding to the paper width (A) of the sprocket paper 3 having a width of 3.5 inches.

On the other hand, when using the sprocket paper 3 having a width of 3 inches, first, the paper guides 27 and 2 are used.
7'is moved to a position corresponding to the 3 inch wide sprocket paper 3. In this case, from the relationship of the dimension (C), 3
As described in the description of the conventional example, the paper guides 27 and 27 'are arranged at a position slightly wider than the position corresponding to the paper width (A) of the sprocket paper 3 having an inch width.
Next, the guide spacers 101, 101 are attached to the guide portions 103 of the paper guides 27, 27 '. The fixed state of the guide spacers 101, 101 to the guide portions 103, 103 is held by the engagement structure of the hook portion 115 of the locking piece 113 and the hole 119 and the engagement structure of the positioning portion 117 and the recess 121. .

By attaching the guide spacers 101, 101, a sprocket sheet 3 having a width of 3 inches,
The gap between the paper guides 27 and 27 'and the guide portions 103 and 103' is filled. That is, the dimensional relationship corresponding to the dimension (C) of the sprocket paper 3 having a width of 3 inches is realized without moving the sprocket wheels 25 and 25 '. Therefore, if the sprocket paper 3 is inserted along the inner side surfaces of the guide spacers 101, 101 'without generating an unnecessary gap between the sprocket paper 3 and the paper guides 27, 27', the sprocket paper 3 The positions of the pin holes 111 and the pins 33 of the sprocket wheels 25 and 25 'automatically match. Further, the sprocket paper 3 will not be inserted in an inclined state.

As described above, according to this embodiment, the following effects can be obtained. First, when the sprocket paper 3 having a width of 3 inches is used, the guide spacers 101, 10
1'is the paper guide 27, the guide portion 103 of the 27 ', 10
By attaching to the 3 ', the gap between the paper guides 27, 27' and the sprocket paper 3 can be filled. That is, it is possible to realize a state that matches the dimension (C) of the sprocket paper 3 having a width of 3 inches without moving the sprocket wheels 25 and 25 '. Therefore,
Guide the sprocket paper 3 to the guide spacers 101, 101 '
If it is inserted along the inner surface of the sprocket, the position of the pin hole 11 of the sprocket sheet 3 and the position of the pin 33 of the sprocket wheels 25, 25 'will automatically match. Therefore, the insertion of the sprocket paper 3 is as easy as the case of the sprocket paper 3 having a width of 3.5 inches, and the paper jam phenomenon due to the pin hole 11 and the pin 33 not being aligned does not occur.

Further, since no large gap is generated on both sides of the sprocket paper 3, the sprocket paper 3 does not tilt when the sprocket paper 3 is inserted. The paper jam phenomenon also disappears.

The present invention is not limited to the above-mentioned one embodiment. First, in the case of the above-described embodiment, the guide spacer 101 is attached to the guide portion 1 of the paper guide 27, 27 '.
Although it is designed to be attached and detached to and from 03, it may be attached and detached to another place. In that case, the shape of the guide spacer 101 also changes depending on the location of attachment and detachment. Also, instead of attaching and detaching the guide spacer 101,
It is also possible to incorporate it in advance. For example, the guide spacers 101 may be attached to the guide portions 103 of the paper guides 27 and 27 'so as to be retractable, and the guide spacers 101 may be projected and arranged when necessary. Further, in the case of the above-mentioned one embodiment, the printer using both the sprocket paper 3 having a width of 3.5 inches and the sprocket paper 3 having a width of 3 inches is shown as an example, but the present invention is not limited thereto. For example, in the case where three or more kinds of sprocket papers 3 can be used, guide spacers each having a predetermined shape and size may be prepared and used as needed. Alternatively, the guide spacers may be incorporated in advance so that they are appropriately projected and arranged. Further, in the case of the above-mentioned one embodiment, the description has been made on the assumption that the interval (C) is different when the paper width (A) is different, but even if the paper width (A) is the same, the interval (C) is also different. If there is a different sprocket paper, it will be able to handle it.

[0026]

As described above in detail, according to the printer of the present invention, by providing the guide spacer, it is easy to handle various sprocket papers having different widths and different side-to-pin hole intervals. It is possible to prevent the occurrence of the paper jam phenomenon by eliminating the unnecessary gap between the sprocket paper and the paper guide.

[Brief description of drawings]

FIG. 1 is a perspective view showing the relationship between a guide spacer and a paper guide according to an embodiment of the present invention.

FIG. 2 is a side view of a guide spacer according to an embodiment of the present invention.

FIG. 3 is a front view of a guide spacer according to an embodiment of the present invention.

FIG. 4 is a back view of the guide spacer according to the embodiment of the present invention.

FIG. 5 is a view showing an embodiment of the present invention in which a guide spacer is attached to a guide portion of a paper guide.

FIG. 6 is a perspective view of a printer showing a conventional example.

FIG. 7 is a perspective view of a printer showing a conventional example.

FIG. 8 is a perspective view of a printer showing a conventional example.

FIG. 9 is a perspective view of a printer showing a conventional example.

FIG. 10 is a plan view showing an internal mechanism of a printer showing a conventional example.

FIG. 11 is a side view showing an internal mechanism of the printer showing a conventional example.

FIG. 12 is a plan view of a sprocket paper sheet showing a conventional example.

FIG. 13 is a view showing a conventional example and showing a relationship between a sprocket paper and a paper guide.

FIG. 14 is a view showing a conventional example and showing a relationship between a sprocket paper and a paper guide.

FIG. 15 is a view showing a conventional example and showing a relationship between a sprocket paper and a paper guide.

[Explanation of symbols]

 3 Sprocket Paper 11 Pin Hole 25 Sprocket Wheel 25 'Sprocket Wheel 27 Paper Guide 27' Paper Guide 33 Pin 101 Guide Spacer

Claims (1)

[Scope of utility model registration request] 1. A pair of paper guides for guiding a sprocket paper having pin holes on both sides, and a pair of the paper guides which are removably movable to move integrally with each other so that the sprocket paper is circumferentially formed. And a pair of sprocket wheels having a plurality of pins that engage with the pin holes of the printer, and by moving the pair of paper guides, a printer configured to correspond to a plurality of types of sprocket paper having different paper widths. A printer characterized by being provided with a guide spacer for adjusting a distance between the paper guide and a pin of a sprocket wheel so as to be compatible with various sprocket papers having different distances from a side portion to a pin hole.