JP2000177889A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer holding rolled paper without any need of a support shaft and facilitating the attachment/detachment in the printer printing using the rolled paper. SOLUTION: This printer is provided with a rolled paper frame 11 with the width slightly wider than the width of rolled paper 12, an elastic body 13 positioned outside the rolled paper frame 11, and an approximately columnar rolled paper holder 14 in its end. By this constitution, the rolled paper 12 can be supported by inserting the rolled paper holder 14 into a hollow part. In detaching, the rolled paper holder 14 is moved from the end face of the rolled paper 12 to the outside. This constitution can support the rolled paper 12 without any need of a holding shaft and facilitate the attachment/detachment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a POS, a ticket issuing machine,
The present invention relates to a printing device for a small terminal for outputting a receipt, a ticket, and measurement data of a measuring instrument or the like, and particularly to a printing device using a large-diameter roll paper.

[0002]

2. Description of the Related Art Conventionally, a method of supporting roll paper in a printing apparatus is generally a "throw-in type" in which the roll paper is directly placed on a tray portion of a frame, and a "support axis type" in which a roll paper core tube is received by a support shaft. There is. When using a large-diameter roll paper, in most cases, a support shaft is passed through the roll paper to reduce the load on the printing apparatus, the support shaft is received by a frame, and the roll paper is floated in the air and supported.

A conventional example is disclosed in Japanese Unexamined Patent Application Publication No. 10-151831.
Will be described with reference to FIG. In FIG.
Is a frame, a compartment 21b surrounded by a frame wall 21a for accommodating a roll paper 22, and a U-shaped groove 2
1c. A support shaft 23 passes through the roll paper 22 and is received by the frame groove 21c.
At this time, the outer periphery of the roll paper 22 is in contact with the bottom surface of the frame 21 and is supported in the air.

[0004] One end of the roll paper 22 is pulled out and put on a transport path of a feed roller 24 and a platen roller 25 arranged on a frame 21, and thereafter, an upper frame 28 provided with a head 29 and a transport roller 30 is rotated. When the position is fixed by the positioning member 27, the supply operation of the roll paper 22 to the printing apparatus is completed.

[0005]

However, in the above-mentioned conventional printing apparatus, a support shaft is required to float and support the outer periphery of the roll paper. If the support shaft is damaged or lost, the roll paper must be held. Can not be done. Further, when the roll paper is mounted, it is necessary to pass the support shaft through the roll paper, and there is a problem that the operation of attaching and detaching the roll paper is complicated.

[0006] The present invention is to solve the above problems,
An object of the present invention is to provide a printing apparatus that does not require a support shaft and that allows easy operation of attaching and detaching roll paper.

[0007]

In order to solve the above-mentioned problems, a printing apparatus according to the present invention is directed to a printing apparatus that performs printing using a roll of paper in which recording paper is wound in a hollow state. A roll paper holder inserted at both ends to support the roll paper; and a roll paper holder provided outside the both ends of the roll paper to support the roll paper holder and to move the roll paper holder outward from the end face of the roll paper by elastic deformation. An elastic body that can be positioned in a gap between both end faces of the roll paper and the elastic body to regulate the position of the roll paper in the width direction, and a cutout or a notch so that the roll paper holder can be moved. And a roll paper frame having a shape in which a hole is formed.

According to the present invention, it is possible to obtain a printing apparatus which does not require a support shaft and which can be easily attached and detached.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a printing apparatus for printing using roll paper obtained by winding a recording paper in a hollow state, wherein the recording paper is inserted into both ends of a hollow portion of the roll paper. A roll paper holder for supporting the roll paper, and an elastic body provided outside the both ends of the roll paper to support the roll paper holder and to move the roll paper holder outward from the end face of the roll paper by elastic deformation. In order to regulate the position of the roll paper in the width direction, a cutout or a hole is formed so as to be located in a gap between both end faces of the roll paper and the elastic body and to allow the roll paper holder to move. The roll paper frame has a simple configuration that does not require a support shaft.

A second aspect of the present invention is the invention according to the first aspect, wherein the elastic body constantly biases the roll paper frame. The elastic body and the roll paper frame have the function of integrally supporting the roll paper.

According to a third aspect of the present invention, in the first aspect, the roll paper holder is made of a resin, and has an effect of reducing the rotational load of the roll paper.

According to a fourth aspect of the present invention, there is provided the invention as set forth in the first aspect, wherein the roll paper holder is formed by drawing an elastic body made of a sheet metal by a drawing process. This has the effect that the paper can be held.

According to a fifth aspect of the present invention, there is provided the first aspect of the present invention, wherein the roll paper holder has a substantially columnar shape and is provided on the insertion side in order to smoothly insert the roll paper. A first inclined portion and a second inclined portion provided on the opposite side to the first inclined portion by 180 ° in order to smoothly remove the roll paper, so that the roll paper can be smoothly attached and detached. Has the effect of being able to.

According to a sixth aspect of the present invention, in the fifth aspect, the direction in which the recording paper is pulled out from the roll paper for printing is different from the direction in which the roll paper is detached. This has the effect of ensuring that the roll paper is held during use, while facilitating the attachment and detachment of the roll paper.

According to a seventh aspect of the present invention, in the first aspect, the end of the roll paper frame on which the roll paper is mounted has a shape protruding from the end of the elastic body. In addition, it has a shape that is inclined outward from the end of the elastic body, and has an effect that it is difficult for a finger or the like to deform the elastic body.

An embodiment of the present invention will be described below with reference to FIGS. (Embodiment 1) FIG. 1 is a perspective view of a printing apparatus according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of a roll paper holder and an elastic body of the embodiment, and FIG. It is a perspective view of a paper frame.

In FIG. 1, reference numeral 12 denotes roll paper on which a recording paper is wound, 12a denotes recording paper drawn from the roll paper 12, 12b denotes a core tube formed of a hollow cylindrical body, and 12c denotes a hollow portion of the roll paper 12 Is obtained by winding recording paper around the core tube 12b. The core tube 12b and the hollow portion 12c are handled as components of the roll paper 12. Reference numeral 3 denotes a base frame made of a sheet metal, 3a denotes an opening provided above the base frame 3, and a recording paper insertion opening through which a recording paper 12a passes, and 4 denotes a recording paper 12 conveyed from the recording paper insertion opening 3a.
a printer unit for printing on a, 5 a cutter for cutting recording paper (not shown) after printing, and 6 and 7 respectively guide the cut recording paper (not shown) to a take-out opening (not shown). The shooter A and the shooter B 10 are control boards for controlling the printer unit 4 and the cutter 5. The components 3 to 7 and 10 constitute the printing apparatus main body 1.

Reference numeral 11 denotes a roll paper frame provided above the base frame 3, reference numeral 13 denotes an approximately U-shaped elastic body held by the roll paper frame 11, and reference numeral 14 denotes an elastic body. It is a roll paper holder made of a cylindrical resin, and supports the roll paper 12 by being inserted into the hollow portion 12c of the core tube 12b. Component 11, 1
The roll paper support 2 is constituted by 3 and 14.

Reference numeral 8 denotes a panel for preventing the printing apparatus from being exposed to the outside during use, and reference numeral 9 denotes a screw for fixing the roll paper support 2 to the printing apparatus main body 1.

A detailed description of the roll paper support 2 will be given with reference to FIGS. 13a and 13b in FIG.
Are screws for fixing the roll paper holder 14 to the elastic body 13, 11a and 11b are holes for passing the roll paper holder 14, and 11c and 11d are rolls when the roll paper 12 is mounted. This is an eave part in which the end of the portion through which the paper 12 passes is inclined outward. here,
“Outside” refers to the direction away from the roll paper 12 with the roll paper 12 mounted, and “inside” refers to the direction approaching the roll paper 12.

The roll paper holder 14 holds the roll paper frame 1
1 through the holes 11a and 11b.
The portion protruding more inward supports the core tube 12b of the roll paper 12. The roll paper holder 14 is made of resin and has a smooth surface, so that the rotational load of the roll paper 12 can be reduced.

The roll paper frame 11 is a U-shaped frame and has a width slightly larger than the width of the roll paper 12, thereby restricting the position of the roll paper 12 in the width direction. And to reduce the positional deviation.

The width of the base of the U-shaped elastic body 13 is wider than the width of the roll paper frame 11 and the width of the leading end is narrower than that of the roll paper frame 11. The urging force of 13 is absorbed by the roll paper frame 11, and the roll paper 12 can be supported with no urging force applied to the roll paper 12 mounted inside the roll paper frame 11.

The positional relationship between the roll paper 12, the roll paper frame 11, and the elastic body 13 is such that the roll paper 12, the roll paper frame 11, and the elastic body 13 are located in this order from the inside. Thus, the roll paper frame 11 is
By being located between the elastic body 13 and the elastic body 13, the urging force of the elastic body 13 does not need to be applied to the roll paper 12 as described above.

The operation of the printing apparatus configured as described above will be described below. When the leading end of the roll paper 12 inserted into the roll paper support 2 is inserted into a recording paper insertion slot 3a provided in the base frame 3, a paper detection sensor (not shown) provided in the printer 4 detects the recording paper 12a. Then, the recording paper 12a is electrically pulled in automatically and the designated print information is recorded. The printed recording paper 12a passes through the cutter 5, and is cut by the cutter 5 when the printing operation is completed, and falls by its own weight to the recording paper outlet (not shown) of the panel 8 by the shooters A6 and B7. A door (not shown) is disposed between the chute B7 and the panel 8 at the recording paper outlet, and the recording paper 12a that has fallen under its own weight is received by this door, and the operator opens the door to record the recording paper 12a. The paper 12a is taken out, checked, and stored.

Next, the attachment / detachment of the roll paper 12 to / from the printing apparatus will be described. First, when the roll paper 12 is loaded, when the roll paper 12 is moved in the direction of arrow A in FIG. 1, the roll paper holder 14 moves outward due to the end face of the roll paper 12, and the roll paper holder is placed on the end face of the roll paper 12. 14 comes into contact.

Further, the roll paper 12 is moved in the direction of arrow A, and the hollow portion 12c of the roll paper 12 is
4, the roll paper holder 14 moves inward by the urging force of the elastic body 13 and is inserted into the hollow portion 12 c of the roll paper 12. Thereby, the roll paper 12
Is supported by the roll paper holder 14, and the attachment to the printing device is completed. At this time, the urging force of the elastic body 13 is absorbed by the roll paper frame 11, so that the roll paper 12 can rotate with a low load without receiving the urging force of the elastic body 13.

Next, when the roll paper 12 is detached and moved, when the roll paper 12 is moved in the direction of arrow C, the roll paper holder 14 contacts the end face of the roll paper 12 and opens outward due to the end face of the roll paper 12. When the roll paper 12 is further moved in the direction of arrow C, the roll paper holder 14 comes off from the end face of the roll paper 12, and the roll paper holder 14 moves inward by the urging force of the elastic body 13, and the roll paper 12 is detached. Complete.

As described above, the printing apparatus according to the present embodiment
Since the roll paper holder 14 moves outward from the end face of the roll paper 12 when the roll paper 12 is attached or detached, the roll paper 12 can be held without using a support shaft, and an effect of simplifying the attaching / detaching operation is achieved. Since the elastic body 13 holding the roll paper holder 14 changes its elasticity in the moving range of the roll paper holder 14, even if the mounting and dismounting of the roll paper 12 are repeated, the elastic body 13 is not plastically deformed or damaged. Absent.

Further, since the roll paper holder 14 is made of resin and can reduce the rotational load, there is an effect that the load when pulling out the recording paper 12a for printing can be reduced.

The roll paper 1 of the roll paper frame 11
Eaves 11c, 11 in which the end on the insertion side of 2, that is, the end of the portion through which the roll paper 12 passes at the time of loading, is inclined outward.
d makes the elastic body 13 hard to be deformed by a finger or the like, and has an effect of preventing plastic deformation and breakage of the elastic body 13.

Note that even if the width of the tip of the elastic body 13 is the same as or wider than the roll paper frame 11,
Since only the urging force is not applied to the roll paper frame 11, the same effect can be obtained even with such a configuration.

However, in the case of a configuration in which a biasing force is applied to the roll paper frame 11 as in the present embodiment, the elastic body 1
A frictional force is generated between the elastic member 13 and the roll paper frame 11, and the elastic body 13 and the roll paper frame 11 can be regarded as a single body with respect to a load smaller than the maximum value of the frictional force. Therefore,
Since the roll paper 12 is supported by the elastic body 13 and the roll paper frame 11, the effect of increasing the strength is achieved.

In this embodiment, the roll paper 12 is wound around the core tube 12b. However, the same effect can be obtained even if the roll paper 12 is wound hollow without the core tube 12b. Obviously you can get it.

The shape of the roll paper frame 11 may be a notch instead of the holes 11a and 11b which allow the roll paper holder 14 to move as in this embodiment.

The inclined eaves 11c provided on the roll paper frame 11 have the effect of guiding the roll paper 12 when it is inserted, and the tip of the inclined eaves 11c protrudes from the tip of the elastic body 13. Together with the outside of the elastic body 13 by a finger or the like.
And has an effect of preventing deformation of the elastic body 13.

(Embodiment 2) Embodiment 2 of the present invention
Is a modification of the first embodiment in which the configurations of the elastic body 13 and the roll paper holder 14 are changed.

FIG. 3 is a perspective view of a roll paper holder according to Embodiment 2 of the present invention. Reference numeral 15 denotes an elastic body formed by processing a sheet metal into a U-shape, and a roll paper holder 15a formed by drawing from the elastic body 15 is provided at both ends.
The roll paper 12 is supported at a portion that penetrates the one hole 11 a and protrudes inward from the roll paper frame 11.
The roll paper holder 15a has a smooth surface and can support the roll paper 12 while reducing the rotational load.

With this configuration, it is possible to provide a printing apparatus that can securely support the roll paper 12 without using a support shaft and can pull out the roll paper 12 with a low load.

In this embodiment, since the elastic body 15 and the roll paper holder 15a are integrated, there is an effect that the number of components can be reduced.

(Embodiment 3) Embodiment 3 of the present invention
Is a modification of the first embodiment in which the shape of the roll paper holder 14 is changed.

FIG. 4 is an external view of a roll paper holder according to Embodiment 3 of the present invention. FIG. 4 (a) is a perspective view of the roll paper holder, and FIG. 4 (b) is a front view and plan view of the roll paper holder. FIG.

Reference numeral 16 denotes a roll paper holder, and the roll paper 12
An insertion inclined portion 16a (a first inclined portion) which comes into contact with the outer diameter portion of the roll paper 12 to facilitate the insertion of the roll paper 12 on the insertion side of the roll paper 12; 16b, and a take-out slope 16c that contacts the core tube 12b on the opposite side of the insert slope 16a by 180 ° to facilitate the removal when replacing the roll paper 12.
(A second inclined portion). U-shaped elastic body 13
The roll paper holders 16 fixed to both ends of the pair are formed as a pair of left and right. When the roll paper 12 is moved in the direction of arrow A, the outer diameter of the roll paper 12 hits the insertion inclined portion 16a of the roll paper holder 16, and the elastic body 13 is spread along this inclination. When further moved, the outer diameter of the roll paper holder 16 is accommodated in the hollow portion 12 c of the roll paper 12, and the roll paper holder 16 returns to a position where it comes into contact with the roll paper frame 11 by the elastic force of the elastic body 13. At this time, the roll paper 12 is inserted by the insertion inclined portion 16a.
Insertion force is small. Recording paper 12a on printer unit 4
When the printing operation is performed through the roll paper 12, the roll paper 12 is pulled in the direction of arrow B. At this time, the roll paper 12 is received by the upper portion 16 b of the roll paper holder 16 and is stably supported without coming off. When replacing the roll paper 12, the roll paper (there may be only the core tube 12b) 12 is taken out in the arrow C direction. At this time, the core tube 12b of the roll paper 12 hits the take-out inclined portion 16c of the roll paper holder 16, and the elastic body 13 is spread along this inclination, so that the roll paper 12 can be taken out with a low load.

As described above, by providing the insertion inclined portion 16a and the takeout inclined portion 16c in the roll paper holder 16, the roll paper 12 can be smoothly attached and detached. The gentler the inclination, the lighter the load at the time of attachment / detachment becomes lighter, but on the other hand, the easier it is to attach / detach the roll paper 12, and there is a risk that it may be inadvertently attached / detached. By making the take-out slope 16c steeper than the insertion slope 16a as in the present embodiment, it is possible to prevent the roll paper 12 from being carelessly detached.

Also, as in the present embodiment, the direction in which the recording paper 12a is pulled out from the roll paper 12 for printing is different from the direction in which the roll paper 12 is attached / detached, ie, different from the direction of the insertion inclined portion 16a. And take-out slope 1
Since the direction is different from that in FIG. 6c, the roll paper 12 can be reliably held, and an effect of preventing detachment during printing operation can be achieved.

[0046]

According to the present invention, there is provided a roll paper holder inserted into both ends of a hollow portion of a roll paper to support the roll paper,
A support shaft is required by having an elastic body that supports the roll paper holder and can move the roll paper holder outward from the end face of the roll paper and a roll paper frame that regulates the position of the roll paper in the width direction. This makes it possible to hold the roll paper without any trouble, and to obtain a printing apparatus in which the roll paper can be easily attached and detached. In addition, since the elastic body is always urged against the roll paper frame, there is an effect that the strength for holding the roll paper is increased. Further, by using a resin for the roll paper holder, it is possible to reduce the rotational load of the roll paper and to draw out the recording paper with a low load. Further, by forming the roll paper holder by drawing of an elastic body made of sheet metal, there is an effect that the rotational load of the roll paper can be reduced and the number of parts can be reduced. Further, since the first inclined portion and the second inclined portion are respectively provided in the direction of attaching and detaching the roll paper, there is an effect that the attachment and detachment of the roll paper can be performed smoothly. Further, by setting the direction of pulling out the recording paper to be different from the first inclined portion and the second inclined portion, an effect of securely holding the roll paper is achieved. Further, by providing the roll paper frame with the eaves portion, the elastic body is hardly deformed by a finger or the like, and an effect of preventing plastic deformation and breakage of the elastic body is achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a printing apparatus according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a roll paper holder and an elastic body according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a roll paper holder according to a second embodiment of the present invention.

FIG. 4 is an external view of a roll paper holder according to Embodiment 3 of the present invention.

FIG. 5 is a perspective view of a roll paper frame according to the first embodiment of the present invention.

FIG. 6 is a configuration diagram of a conventional printing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printer main body 2 Roll paper support part 3 Base frame 4 Printer part 5 Cutter 6 Shooter A 7 Shooter B 8 Panel 9 Screw 10 Control board 11 Roll paper frame 12 Roll paper 13 Elastic body (first embodiment) 14 Roll paper holder (Embodiment 1) 15 Elastic body (Embodiment 2) 16 Roll paper holder (Embodiment 3)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshio Tanaka 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 2C060 BA04 BC03 3F052 AB05 BA07 BA12

Claims (7)

[Claims] 1. A printing apparatus for performing printing using roll paper obtained by winding a recording paper into a hollow, wherein a roll paper holder inserted into both ends of a hollow portion of the roll paper to support the roll paper; An elastic member provided outside the both ends of the roll paper to support the roll paper holder and move the roll paper holder outward from the end face of the roll paper by elastic deformation; and a width direction of the roll paper. It is located in the gap between both end surfaces of the roll paper and the elastic body in order to regulate the position of the roll paper, and has a shape in which a cutout or a hole is formed so that the roll paper holder can move. A printing device comprising a roll paper frame. 2. The printing apparatus according to claim 1, wherein the elastic body constantly urges the roll paper frame. 3. The printing apparatus according to claim 1, wherein said roll paper holder is made of resin. 4. The printing apparatus according to claim 1, wherein the roll paper holder is made of sheet metal and is formed by drawing an elastic body by drawing. 5. The roll paper holder has a substantially cylindrical shape, a first inclined portion provided on an insertion side for smooth insertion of the roll paper, and a first inclined portion provided for smooth removal of the roll paper. A second inclined portion 180 ° opposite to the first inclined portion;
2. The printing device according to claim 1, wherein the printing device comprises: 6. The printing apparatus according to claim 5, wherein a direction in which the recording paper is pulled out from the roll paper for printing is different from a direction in which the roll paper is attached and detached. 7. An end of the roll paper frame on a side where the roll paper is mounted is formed to protrude from an end of the elastic body and to have a shape inclined outward from an end of the elastic body. The printing device according to claim 1, wherein