JP2524555Y2 - Manual printing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a manual printing machine that performs recording on a recording medium via a film ribbon.

[Prior Art] Conventionally, as shown in FIG.
There is disclosed a manual printing machine which travels on the upper side by manual operation and performs recording on paper P.

Such a manual printing machine has the following configuration.
A printing machine is used for printing on paper P.

(I) Basic configuration: The manual printing machine passes through the head surface of the recording head MH by the drive roller DR rotated by the manual operation, the take-up reel rotated by the drive roller DR, and the rotation of the take-up reel. The recording head MH outputs data stored in advance from the head surface in synchronization with the rotation of the driving roller DR.

(Ii) Printing procedure: A manual printing machine is driven on paper P by a driving roller.
The print head DR is pressed against the recording head MH via the film ribbon FR, so that the recording head MH runs straight.

As a result, the film ribbon FR is sequentially conveyed to the head surface of the recording head MH in synchronization with traveling, and an output (for example, heat generation) corresponding to print data and the like is performed from the recording head MH. Is recorded (printed).

According to this manual printing machine, even if the paper P is not placed on a flat surface, and, for example, its axis is attached to a cylindrical surface parallel to the rotation axis of the drive roller DR, the recording head
As long as the head surface of the MH and the drive roller DR are in contact with the paper P, printing can be performed, and versatility is high.

[Problems to be Solved by the Invention] However, in the manual printing machine of the prior art, it is difficult to perform traveling by manual operation without causing yawing, and it is easy to perform the traveling with a curvature.
There is a problem that wrinkles occur and the print quality is reduced.

 That is, this is due to the following reasons.

For example, as shown in FIG. 7, the manual printing machine is driven when the main body B cannot be run straight, for example, when a yawing moment is applied, in order to fix the paper P only by the driving roller DR. The roller DR easily slips and travels with a curvature as shown by the dotted line. When the vehicle travels with such a curvature, a force in the outer peripheral direction acts on the film ribbon FR on the recording head MH, and the recording head MH and the guide roller GR (6th) on the upstream side of the recording head MH. (See the figure), and the wrinkles reach over the recording head MH as the vehicle travels, making it impossible to print the wrinkled portions.

Further, when the wrinkles become large and the ribbon is broken, the bent may pass over the guide roller GR on the upstream side, for example, to the inside of the ribbon cassette, and many film ribbons FR are wasted. And it takes time to correct.

An object of the present invention is to improve the printing quality while maintaining the versatility of a manual printing machine, that is, the feature that the surface shape of a recording medium is not limited to a flat surface, by solving the above problems.

[Means for Solving the Problems] As a means for achieving the above object, the manual printing machine of the present invention is configured to abut a film ribbon coated with ink and a recording medium to be printed via the film ribbon. In a manual printing machine having a recording head that moves on the recording medium by manual operation and appropriately transfers the ink to the recording medium, a film is interposed between the recording head and the recording medium in synchronization with the traveling. A driving roller for transporting a ribbon, a pressing roller having a rotating shaft parallel to the driving roller and pressing the recording medium, and supporting the pressing roller movably in a direction in which the pressing roller comes into contact with the recording medium and in a direction opposite thereto. And a suspension mechanism for urging the pressing roller in a direction in which the pressing roller contacts the recording medium, wherein the recording head is fixed to the main body of the manual printing machine, and the driving roller The above-mentioned pressing roller, at least 4
And contacting the recording medium at a point or more.

The recording head is, for example, a thermal head when the film ribbon is a thermal ribbon, a dot impact head when the film ribbon is an ink ribbon, and an energizing head when the film ribbon is a thermal ribbon. is there.

The pressing roller is provided, for example, on the upstream side of the recording head, and the film ribbon has a coefficient of friction with respect to the recording medium,
It may be made of silicon rubber or the like having a high friction coefficient. Further, for example, a film ribbon may be stretched on the pressing roller.

[Operation] In the manual printing machine of the present invention, a driving roller for transporting a film ribbon between a recording head and a recording medium and a pressing roller having a rotating shaft parallel to the driving roller record at least four points. It travels on the recording medium by manual operation in contact with the medium. Thus, for example, even when the travel is performed in a state where the twisting force is applied to the manual printing machine, the pressing roller and the driving roller do not easily slip. Therefore, the vehicle travels straight on the recording medium.

Further, the press roller is supported by a suspension mechanism so as to be movable in a direction in which it contacts the recording medium and in a direction opposite thereto.
In addition, since the recording medium is urged in a direction in which the recording medium is in contact with the recording medium, it is necessary to be able to run the manual printing machine while keeping the recording head, the driving roller, and the pressing roller in contact. I can't. That is, printing can be performed on the surface of the recording medium having an arbitrary curved surface capable of contacting and running with the above three members within the movable range of the pressing roller. Note that the recording head is fixed to the printing machine main body, and the film ribbon is firmly adhered to the recording head and the recording medium during printing.

[Embodiment] Next, an embodiment of the manual printer according to the present invention will be described with reference to the overall configuration diagram of FIG. 1 and the partial detailed views of FIGS.

As shown in FIG. 1, the manual printing machine 10 of the present embodiment includes a main body 12 having a recording head control circuit and the like, and a ribbon cassette 14 housed in the main body 12. In such a configuration, the driving roller 16 provided at the lower portion of the main body 12
The film ribbon 18 in the ribbon cassette 14 is sequentially conveyed by being driven to rotate in the direction of the arrow YA. Also, a thermal head as a recording head uses print data stored in a control circuit (not shown) in advance.
Output to the head surface 22 of 20. In this way, printing corresponding to the print data is performed on the paper 24.

Drive roller 16 for transporting the film ribbon
As shown in the partial detailed view of FIG.
A silicon rubber layer is formed on the lower surface of the main body 12 as shown in FIG.
A belt 30 is stretched between the drive roller 16 and the winding core 28 in the ribbon cassette 14.

In the ribbon cassette 14, a payout ribbon pancake 32 is provided.
There are provided a guide roller 33 for guiding the film ribbon 18 fed out of the apparatus, a pressing roller 34 with the film ribbon stretched at the center of the film ribbon 18, and the like. As a result, the film ribbon 18 of the pancake 32 is fed out by the belt driving of the winding core 28 by the driving roller 16, and is guided by the guide roller 33, and the head surface of the pressing roller 34 and the thermal head 20 is moved. After passing through the winding cores 22, the winding core 28 winds the winding cores.

The pressing roller 34 on which the film ribbon 18 is stretched is a silicon rubber roller having a core metal 35 which is parallel to the axis of the driving roller 16 and which is not easily bent by the tension of the stretched film ribbon 18. It is.

The suspension mechanism that supports the press roller 34 so that it can swing up and down is composed of an arm 36, a fall prevention pin 45, a spring 46, and a positioning pin 48, and the press roller 34 is attached to the lower portion of the ribbon cassette 14. The arm 36 is rotatably supported by a hole 38. As shown in FIG. 3, the arm 36 includes left and right arm portions 40 and a connecting portion 42 that connects the arm portions 40.
Each of the holes 38 described above for holding the pressing roller 34 and the hole 44 for rotatably attaching the arm 36 to the ribbon cassette 14 are formed. A spring 46 press-fitted into a fall-off prevention pin 45 at a lower portion of the main body 12 is provided at an upper end of the arm portion 40.
(See FIG. 1).

As a result, as shown in FIG. 2, the arm 36 is fitted into the projection (not shown) of the ribbon cut 14 by the hole 44, and is urged in the direction of the sheet 24 by the spring 46, thereby forming the ribbon cassette 14 , And has a pressing force in the direction of the paper 24. Also, ribbon cassette
A positioning boss 52 is formed near the fulcrum 50, which is a connecting portion between the arm 14 and the arm 36, for restricting the arm 36 from excessively moving in the paper 24 direction.

The manual printing machine 10 described above runs on the paper 24 by the outer peripheral portions 26 at both ends of the drive roller 16 and the pressing roller 34 on which the film ribbon 18 is stretched. As a result, the paper 24 is brought into contact with the paper 24 at two points of the outer peripheral portion 26 made of silicon rubber and at a portion where the film ribbon 18 is not stretched on the pressing roller 34, that is, at both ends 54 where silicon rubber having a high friction coefficient is exposed. Touch Therefore, the four points in contact with the paper 24 have a high coefficient of friction and are unlikely to slip.
Even when the manual printing machine 10 is manually operated in a state where a torsional force is applied to the manual printing machine 10, the manual printing machine 10 runs straight on the paper 24. Even when the torsional force is strong, the paper 24 on the underlay (not shown) is twisted following the manual printer 10 as shown by the dotted line in FIG. Drive straight on 24.

As a result, since the manual printing machine 10 always runs straight on the paper 24, wrinkles are not generated on the film ribbon 18 and an extremely excellent effect of improving printing quality is obtained.

In addition, even if wrinkles occur downstream of the press roller 34 for any reason, the film ribbon 18 is in close contact with the press roller 34 made of silicon rubber and is pressed against the paper 24, so the film ribbon 18 is The wrinkles do not occur on the pressing roller 34 because the upper side does not shift laterally. Further, the wrinkles do not proceed to the inside of the ribbon cassette 14 on the upstream side of the pressing roller 34.
Therefore, the film ribbon 18 is not wasted, and the maintainability is improved.

Further, the holding roller 34 is made swingable around a fulcrum 50 by an arm 36, and is urged toward the paper 24 by a spring 46. Therefore, the surface of the recording medium is
Even if the axis is a cylindrical surface parallel to the pressing roller 34 instead of the flat shape as in 24, the pressing roller 34 moves and contacts the surface as appropriate. That is, presser roller 3
4. Printing can be performed on a recording medium having an arbitrary curved surface that can run with the drive roller 16 and the head surface 20 of the thermal head 20 in contact with each other. The spring 46 is a driving roller
The distribution of the pressing force between the pressing roller 16 and the pressing roller 34 is always made appropriate. Therefore, when traveling by manual operation, the drive roller
It is not necessary to adjust the distribution of the pressing force between the press roller 16 and the press roller 34, and the operability is improved.

Note that the present invention is not limited to the above-described embodiment, and, for example, the pressing roller 34 may be used without changing the gist of the present invention.
By forming the portion 60 where the film ribbon 18 is stretched to be thin as shown in FIG.
The contact may be made more reliably. Also, drive roller
Other members may be used instead of the silicone rubber of the pressing roller 16 and the pressing roller 34.

[Effects of the Invention] The manual printing machine of the present invention has a very excellent effect that the film ribbon does not bend and run, so that the film ribbon does not wrinkle and the printing quality and operability are improved.

That is, the drive roller and the pressing roller are in contact with the recording medium at at least four points, so that even when, for example, a manual printing machine is manually operated by applying a torsional force, slipping hardly occurs at the four points, As a result, the manual printing machine runs on the recording medium without yawing. Also,
The press roller is supported by a suspension mechanism so as to be movable in a certain direction of the recording medium and the opposite direction during printing, and the press roller is urged in a certain direction of the recording medium. The surface of the recording medium which needs to be able to run the manual printing machine with the pressing roller kept in contact is not limited to a flat surface. That is, printing can be performed on the surface of the recording medium having an arbitrary curved surface capable of contacting and running with the three members within the movable range of the pressing roller.

From the above, always on the recording medium of the arbitrary curved surface,
It is not necessary to pay attention to operate the vehicle without yawing, and wrinkles do not occur, so that print quality, operability, and maintainability are improved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the manual printing machine of the present invention,
FIG. 2 is a partial detailed view of the embodiment, FIG. 3 is a configuration diagram of an arm of the embodiment, FIG. 4 is an operation explanatory diagram of the embodiment, FIG. 5 is a configuration diagram of a modification of the pressing roller of the embodiment, 6 and 7 are explanatory views of a conventional example. 10 Manual printer, 12 Body 14 Ribbon cassette, 16 Drive roller 18 Film ribbon, 20 Thermal head 24 Paper, 34 Presser roller

Claims (3)

(57) [Scope of request for utility model registration] 1. An ink-coated film ribbon and a recording medium to be printed are brought into contact with the recording medium via the film ribbon, moved on the recording medium by manual operation, and appropriately transfer the ink to the recording medium. In a manual printing machine equipped with a recording head, in synchronization with the traveling, a driving roller for transporting a film ribbon between the recording head and the recording medium, having a rotating shaft parallel to the driving roller, A press roller that presses the recording medium, a suspension mechanism that supports the press roller movably in a direction in which the recording medium comes into contact with the recording medium and in a direction opposite thereto, and biases the press roller in a direction in which the press roller contacts the recording medium. Wherein the recording head is fixed to the main body of the manual printing press, and the driving roller and the pressing roller are in contact with the recording medium at at least four points. And manual printing machine. 2. A manual printing machine according to claim 1, wherein a utility model is registered in which the film ribbon is stretched on the pressing roller. 3. The manual printing machine according to claim 1, wherein the pressing roller is provided upstream of the recording head.