JP2018043872A - Conveyance device and conveyance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress re-entry of a medium into a housing storing a conveyance unit.SOLUTION: A printer unit 20 of a printer calculator includes: a conveyance unit 30 which conveys a roll sheet P; and a housing 40 which stores the conveyance unit 30 and has a sheet feeding port 40a for supplying the roll sheet P to the inside. The sheet feeding port 40a includes an upper end surface of an upper case 42 and a lower end surface of a cover case 43, a pair of upper and lower inner wall surfaces facing both principal surfaces of the roll sheet P when the roll sheet P enters the sheet feeding port 40a. With contact of each of the pair of upper and lower inner wall surfaces with the facing principal surfaces of the roll sheet P, the roll sheet P enters the sheet feeding port 40a in such a state that the cross-sectional shape of the roll sheet P viewed from the conveyance direction at the position of entry to the sheet feeding port 40a is curved.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a transport apparatus and a transport method.

2. Description of the Related Art Conventionally, a printer calculator having a printing function provided in a calculator is provided with a transport device that transports a medium such as recording paper (for example, see Patent Document 1).
In this type of transport apparatus, as shown in FIGS. 7A and 7B, a thin linear supply port through which a medium (roll paper) can pass is formed in the rear part of the casing, and the outside of the casing. Thus, the medium wound in a roll shape is supplied to a transport unit (printer device) in the housing through this supply port.

Japanese Patent No. 2843709

  However, in the above-described conventional transport apparatus, as shown by a two-dot chain line in FIG. 7A, the medium discharged through the transport unit and discharged out of the housing also has a curl, and the transport As a result, there is a problem that it moves along the surface of the medium outside the casing (before printing) and enters the supply port again.

  The present invention has been made in view of the circumstances as described above, and an object thereof is to provide a transport apparatus and a transport method capable of suppressing re-entry of a medium into a housing in which a transport unit is accommodated. It is.

In order to achieve the above object, a transport apparatus according to the present invention includes:
A transport unit for transporting the medium;
A housing having a supply port for supplying the medium to the inside while accommodating the transport unit therein,
With
The supply port is
Having a pair of inner wall surfaces facing both main surfaces of the medium when the medium enters the supply port;
When each inner wall surface is in contact with each opposing main surface of the medium, the medium is placed in the supply port while the cross-sectional shape of the medium viewed from the conveyance direction at the position entering the supply port is curved. It is configured to enter.
In order to achieve the above object, a transport method according to the present invention comprises:
A transport method in a transport apparatus comprising: a transport unit that transports a medium; and a housing that houses the transport unit therein and has a supply port for supplying the medium to the inside.
The supply port has a pair of inner wall surfaces of the supply port facing the main surfaces of the medium when the medium enters the supply port;
By contacting each inner wall surface of the supply port and each opposing main surface of the medium, the medium remains curved while the cross-sectional shape of the medium viewed from the transport direction at the position entering the supply port is curved. Is made to enter the supply port.

  According to the present invention, it is possible to suppress the re-entry of the medium into the housing in which the transport unit is accommodated.

It is a perspective view of the printer calculator in an embodiment. It is a sectional side view which shows the internal structure of the printer part in embodiment. (A) is an E arrow view of FIG. 2, (b) is an enlarged view of a paper feed port among (a), (c) is an enlarged view of the F section of FIG. It is a figure for demonstrating the modification of a paper feed port. 7A and 7B are diagrams for explaining a modified example of the printer unit in the embodiment, in which FIG. 9A is a perspective view of the printer unit, and FIG. 9B is a diagram illustrating a roll arm supported by a cover case; ) Is a detailed view of a G portion in (b). FIG. 10 is a diagram for explaining another modification of the printer unit in the embodiment, in which (a) is a perspective view of the printer unit, and shows a roll arm supported by an upper case, and (c). It is detail drawing of the H section of (b). It is a figure which shows the conventional conveying apparatus, Comprising: (a) is a sectional side view, (b) is the figure seen from back.

Hereinafter, an embodiment in the case of applying a transport device according to the present invention to a printer calculator will be described with reference to the drawings.
The embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

[Configuration of Printer Calculator]
First, the configuration of the printer calculator 100 in the present embodiment will be described.
FIG. 1 is a perspective view of the printer calculator 100.
As shown in the figure, the printer calculator 100 includes a printer unit 20 that is integrally provided on the upper side of the calculator unit 10 in a plan view. Input values and calculation results in the calculator unit 10 are output by the printer unit 20. It is configured to be able to print on a medium (roll paper P in the present embodiment).

2 is a side sectional view showing the internal configuration of the printer unit 20, FIG. 3A is a view taken in the direction of arrow E in FIG. 2, and FIG. FIG. 3C is an enlarged view of a portion F of FIG. 2.
As shown in FIG. 2, the printer unit 20 is a transport device according to the present invention, and includes a transport unit 30 that transports a long roll paper P in the longitudinal direction thereof, and a substantially rectangular shape that accommodates the transport unit 30. It has a casing 40 and a roll arm 50 that supports the roll paper P.
The roll paper P to be printed by the printer unit 20 is a long paper medium (printer paper) having a predetermined width wound around a cylindrical core C. From the roll-shaped part Pr wound around the core C, The paper is sequentially unwound and printed by the printer unit 20.
In the following description, the front side of the printer unit 20 (printer calculator 100) is “up”, the back side is “down”, the lower side of the plan view (the calculator unit 10 side) is “front”, and the upper side of the plan view is “up”. It is described as “rear” and represents the position and direction of each part. As shown in FIG. 1 and the like, when the printer calculator 100 is viewed from the printer unit 20 side (rear side), the right side is represented as “right” and the left side is represented as “left”. In other words, the right side in plan view is represented as “left”, and the left side in plan view is represented as “right”. Further, the “roll paper P” refers to a paper-like one unwound from the roll-shaped portion Pr unless otherwise specified.

The transport unit 30 is a printer device having a printing unit 31 therein, and prints on the surface of the roll paper P while transporting it. More specifically, the transport unit 30 has a paper insertion port 30a provided at the lower end of the rear end, and a paper discharge port 30b provided slightly above the front of the conveyance unit 30, and is drawn into the inside from the paper insertion port 30a. After printing on the roll paper P by the printing unit 31, the paper is discharged rearward and obliquely upward from the paper discharge port 30b.
Further, the transport unit 30 has a substantially rectangular parallelepiped shape, and is installed in a state where the bottom surface 30c arranged on the lower side is inclined rearward so that the paper insertion opening 30a opens rearward and slightly upward. This is for the purpose of smoothly inserting the roll paper P into the transport unit 30 by causing a paper insertion port 30a to face a paper feed port 40a, which will be described later, provided at the upper rear end of the housing 40.

The housing 40 includes a lower case 41 that constitutes a lower half of the casing, an upper case 42 that constitutes a substantially upper half of the casing 40, and a translucent cover case 43 that is detachably provided on the upper case 42. Configured. These cases 41 to 43 are all resin molded products.
The lower case 41 and the upper case 42 also serve as a housing of the calculator unit 10 and are fixed to each other at the peripheral portion except for the calculator unit 10 side (front side). Among these, the upper case 42 has an opening 42c in which the upper plate portion is greatly opened up to the upper portion of the rear end so that the inside of the housing 40 can be exposed. The cover case 43 has a shape in plan view corresponding to the opening 42c of the upper case 42, is formed in a substantially flat plate shape having a rear end curved downward, and the upper case 42 can be opened and closed. Is detachably provided.

The housing 40 is provided with a paper feed port 40 a and a paper discharge port 40 b that allow the inside and outside of the housing 40 to communicate with each other.
Among these, the paper feed port 40 a is a supply port for supplying the roll paper P into the housing 40, and is provided at the upper rear end of the housing 40. The paper feed opening 40a is a gap that is long and narrow in the vertical direction along the width direction (left-right direction) of the printer calculator 100, and opens slightly upward.

More specifically, as shown in FIGS. 3A to 3C, the paper feed port 40 a includes an upper end surface 42 a at the upper rear end facing the opening 42 c in the upper case 42, and a rear end of the cover case 43. The lower end surface 43a is formed between a pair of upper and lower inner wall surfaces. The upper end surface 42a and the lower end surface 43a are vertically opposed to each other at a predetermined interval (vertical width), and the paper feed port 40a is configured as a gap between the upper end surface 42a and the lower end surface 43a. ing.
A plurality of ribs 421 and 431 are erected on the upper end surface 42 a of the upper case 42 and the lower end surface 43 a of the cover case 43. Specifically, four ribs 421 projecting toward the cover case 43 side (upper side) are provided on the upper end surface 42 a of the upper case 42, and the upper case 42 side (lower side) is provided on the lower end surface 43 a of the cover case 43. Three ribs 431 projecting toward the side) are provided with a slightly narrower width than the ribs 421 of the upper case 42.

In the present embodiment, the ribs 421 of the upper case 42 and the ribs 431 of the cover case 43 are provided at positions almost opposite to each other in the front-rear direction (that is, the transport direction of the roll paper P). In the width direction (that is, in the width direction of the roll paper P). More specifically, in the width direction of the roll paper P, ribs 431 of the cover case 43 are provided at three positions, both ends and the center, in the paper feed port 40a. On the other hand, two ribs 421 of the upper case 42 are disposed between the ribs 431 of the two adjacent cover cases 43 so as to be individually close to the two ribs 431.
Further, the total height of the ribs 421 of the upper case 42 and the ribs 431 of the cover case 43 is larger than the vertical width of the paper feed opening 40a (that is, the interval between the upper end surface 42a and the lower end surface 43a). Is formed. In other words, the ribs 421 and the ribs 431 are formed so that their tip portions overlap each other in a side view.

With such a configuration, as will be described later, the sheet feeding port 40a of the present embodiment includes a rib 421 on the upper end surface 42a and a rib 431 on the lower end surface 43a of the roll paper P that passes through the sheet feeding port 40a. In contact with both main surfaces, the roll paper P is bent in a vertical direction (a direction orthogonal to the main surface of the roll paper P) when viewed from the conveyance direction. In other words, the paper feed port 40a of the present embodiment has a pair of inner wall surfaces (the upper end surface 42a of the upper case 42) that face both main surfaces of the roll paper P when the roll paper P enters the paper feed port 40a. And a lower end surface 43a) of the cover case 43, and the inner wall surfaces of the roll paper P come into contact with the opposing main surfaces of the roll paper P, so that the roll viewed from the transport direction at the position entering the paper feed port 40a. The roll paper P enters the paper feed opening 40a while the cross-sectional shape of the paper P is curved.
The ribs 421 and the ribs 431 may be configured so as to bend the roll paper P in contact with both main surfaces of the roll paper P passing through the paper feed port 40a. For example, as long as the rib 421 and the rib 431 are positions that do not face each other in the width direction of the roll paper P, the position in the width direction is not particularly limited. However, since the distance between the rib 421 and the rib 431 in the width direction affects the degree of curvature of the roll paper P, it is preferable to set the roll paper P so as not to be excessively curved to increase the conveyance resistance. . Further, the positions of the ribs 421 and the ribs 431 in the front-rear direction are not particularly limited, and may be positions that do not face each other. Further, the number of ribs 421 and ribs 431 is not particularly limited as long as at least one rib 421 and rib 431 are provided, and each shape is not particularly limited. However, it is preferable that the corners are rounded so as not to damage the roll paper P.

  As shown in FIG. 2, the paper discharge port 40 b is a discharge port for discharging the roll paper P to the outside of the housing 40, and is long in the cover case 43 along the width direction of the printer calculator 100. And it is provided so as to open obliquely backward. The paper discharge port 40b is located slightly above and behind the paper discharge port 30b of the transport unit 30, and the printed roll paper P discharged obliquely upward rearward from the paper discharge port 30b of the transport unit 30 is a casing. 40 to the outside.

The roll arm 50 supports the roll-shaped portion Pr of the roll paper P in a rotatable manner.
Specifically, the roll arm 50 is formed by bending a cylindrical metal rod into a substantially U-shape, and includes a first side 51 and a second side 52 that are substantially parallel to each other, and these first sides. 51 and a third side 53 that connects one end of the second side 52 to each other. In the roll arm 50, the first side 51 and the second side 52 are along the width direction of the printer calculator 100, the first side 51 is supported on the upper rear end of the housing 40, and the second side The third side portion 53 is held in an inclined state in a side view so that the portion 52 is positioned obliquely above and rearward of the paper feed port 40a.
And the state where the 2nd side part 52 was penetrated in the core C so that the roll-shaped part Pr of the roll paper P might be pulled ahead from the lower side with the rotation with respect to this roll arm 50 Is set. The leading edge of the roll paper P is drawn into the transport unit 30 in the housing 40 through the paper feed port 40 a, and the roll-shaped part Pr moves around the second side portion 52 of the roll arm 50 along with the transport by the transport unit 30. The paper roll paper P is unwound from the front end side while rotating and is supplied into the housing 40.

The first side 51 of the roll arm 50 is a portion located immediately below the paper feed opening 40 a and is supported by the lower case 41 and the upper case 42 of the housing 40.
Specifically, a standing portion 411 is erected on the bottom surface of the rear end portion of the lower case 41, and an upper end surface 42a constituting the paper feed port 40a is provided on the rear end portion of the upper case 42. A U-shaped portion 422 formed in a U-shape in a side view that opens downward while being an upper end surface is provided. The first side 51 of the roll arm 50 is vertically sandwiched between the upper end surface of the standing portion 411 of the lower case 41 and the upper surface (U-shaped bottom surface) of the U-shaped portion 422 of the upper case 42. It is supported in the state that was done.
At this time, the first side 51 of the roll arm 50 is supported so as to be rotatable about its own central axis along the width direction of the printer calculator 100. Therefore, although not shown in the drawings, the roll arm 50 can be accommodated in the housing 40 through the opening 42c of the upper case 42 by rotating around the first side 51 when not in use.
In addition, the standing part 411 of the lower case 41 and the U-shaped part 422 of the upper case 42 may support the first side part 51 of the roll arm 50 so as to be rotatable. It may be formed in a uniform shape in the width direction of the printer calculator 100 over substantially the entire length of the portion 51, or only both ends in the width direction of the printer calculator 100 so as to support only both ends of the first side portion 51. May be provided.

[Action / Effect]
Next, operations and effects of the printer calculator 100 (printer unit 20) in the present embodiment will be described.

First, when setting the roll paper P in the printer unit 20, the user removes the cover case 43 from the upper case 42 and opens the opening 42 c of the upper case 42. Then, the part (lower end surface 43a) which comprises the paper feed port 40a among the cover cases 43 is spaced apart from the upper case 42, and the member arrange | positioned above the upper end surface 42a which makes the paper feed port 40a among the upper cases 42. The upper end surface 42a is exposed to the outside of the housing 40, and the member disposed above the paper insertion port 30a of the transport unit 30 is also eliminated, so that the paper insertion port 30a is also exposed to the outside of the housing 40. In FIG. 2, the direction in which the cover case 43 is removed is indicated by a white bidirectional arrow A, and the cover case 43 ′ in the removed state is indicated by a two-dot chain line. In other words, the lower end surface 43a at the rear end of the cover case 43 can be displaced to a position deviated from above the upper end surface 42a of the upper case 42, whereby the upper end surface 42a of the upper case 42 and the sheet insertion of the transport unit 30 are inserted. The mouth 30a is exposed to the outside of the housing 40.
Next, the user places the leading end side of the roll paper P on the upper end surface 42 a forming the paper feeding port 40 a in the upper case 42 and inserts the leading end into the paper insertion port 30 a of the transport unit 30. Then, the roll paper P is fed to the transport unit 30 by operating a button provided on the calculator unit 10, and the roll paper P is sufficiently drawn into the transport unit 30. Then, the cover case 43 is attached to the upper case 42 again to close the opening 42c, so that the roll paper P is inserted into the paper feed port 40a and properly set in the transport unit 30 in the housing 40. It becomes.
As described above, as the cover case 43 is removed from the upper case 42, the members disposed above the upper end surface 42 a of the upper case 42 forming the paper feed port 40 a and the paper insertion port 30 a of the transport unit 30 are disposed. Since the member to be removed disappears, the upper end surface 42a of the upper case 42 and the paper insertion port 30a of the transport unit 30 are exposed to the outside of the housing 40, so that the roll paper is inserted into the narrow paper feeding port formed in a single member. The roll paper P can be easily inserted into the paper feed port 40a and set in the transport unit 30 as compared with the case where the paper is inserted.

Then, the roll paper P is supported by the second side 52 of the roll arm 50 so that the roll paper P is set in the printer unit 20.
Then, when the user operates the calculator unit 10, the roll paper P is conveyed by the printer unit 20 while being sequentially printed by the conveyance unit 30. Specifically, the roll paper P is unwound from the roll-shaped portion Pr as it is transported by the transport unit 30, is supplied into the housing 40 from the paper feed port 40 a, and is printed by the printing unit 31 in the transport unit 30. After being discharged, the paper is discharged out of the housing 40 from the paper discharge port 40b.

Here, the paper feed port 40a of the present embodiment is provided under the upper end surface 42a (the rib 421) of the upper case 42 and the cover case 43 opposite to both main surfaces of the roll paper P passing through the paper feed port 40a. Each of the end surfaces 43a (the ribs 431) is configured to bend in the direction perpendicular to the main surface when viewed from the transport direction by contacting the main surface of the corresponding roll paper P facing each other. Has been.
In other words, since the roll paper P cannot be curved unless it is curved in this way, the leading end of the uncurved (substantially linear) roll paper P discharged from the housing 40 is the paper feed. It is possible to prevent entry into the mouth 40a.

Specifically, in the paper feed port 40a of the present embodiment, the rib 421 of the upper case 42 and the rib 431 of the cover case 43 are provided at positions that do not face each other in the width direction of the roll paper P. The roll paper P passing through the paper feed port 40a is curved in a direction perpendicular to the main surface when viewed from the transport direction.
Further, the total height of the ribs 421 of the upper case 42 and the ribs 431 of the cover case 43 is larger than the vertical width of the paper feed opening 40a (that is, the interval between the upper end surface 42a and the lower end surface 43a). Since it is formed, the roll paper P can be bent more reliably.

Further, the paper feed port 40 a of the present embodiment has a lower upper end surface 42 a provided on the upper case 42 and an upper lower end surface 43 a provided on the cover case 43 among the inner wall surfaces. That is, the paper feed port 40 a is formed as a gap between the upper case 42 and the cover case 43 that are members different from each other. Therefore, unlike the case where the paper feed port is formed as a single member, the vertical width of the paper feed port 40a (in order to prevent the roll paper P discharged from the housing 40 from re-entering the paper feed port 40a ( The width of the roll paper P in the thickness direction can be easily reduced.
In other words, when the paper feed port is formed as a single member, it is difficult to form the paper feed port narrowly because the mold (molded part of the paper feed port) cannot be made sufficiently thin due to strength limitations. However, in this embodiment, since the paper feed port 40a is formed between the two parts of the upper case 42 and the cover case 43, the paper feed port 40a is narrowed without causing a problem during molding. Can be formed.

In the present embodiment, the paper feed port 40a is provided on the rear side and the upper side of the paper insertion port 30a of the transport unit 30, and the roll arm 50 has the roll-shaped portion Pr on the rear side of the paper feed port 40a. It is supported at the upper position.
Therefore, as compared with the conventional case where the paper feed port is formed at a position as low as the transport unit, the bending angle (that is, transport resistance) of the roll paper P when passing through the paper feed port 40a is suppressed, and a larger diameter is provided. A roll-shaped part Pr can be used.
That is, in the prior art where the position of the paper feed port was low, the roll-shaped portion could not be placed high in order to suppress the bending angle of the roll paper when passing through the paper feed port (see FIG. 7A), In the present embodiment, by providing the paper feed port 40a above the paper insertion port 30a of the transport unit 30, the roll-shaped portion Pr is made smaller than the conventional one while suppressing the bending angle of the roll paper P when passing through the paper feed port 40a. Can also be provided above. Thereby, the roll-shaped part Pr with a larger diameter than before can be supported by the roll arm 50.

As described above, according to the printer unit 20 of the present embodiment, the paper feed port 40a of the housing 40 has each of the pair of upper and lower inner wall surfaces (the upper surface 42a of the upper case 42 and the lower surface 43a of the cover case 43). Is brought into contact with the main surface of the facing roll paper P, the roll paper P passing through the paper feed port 40a is bent in a direction perpendicular to the main surface when viewed from the transport direction.
Therefore, it is possible to prevent the leading end of the uncurved roll paper P discharged from the housing 40 from entering the paper feed port 40a, and as a result, re-entry of the roll paper P into the housing 40. Can be suppressed.

Further, the ribs 421 provided on the upper end surface 42 a of the upper case 42 and the ribs 431 provided on the lower end surface 43 a of the cover case 43 are provided at positions that do not face each other in the width direction of the roll paper P. As described above, the roll paper P passing through the paper feed port 40a can be bent in a direction perpendicular to the main surface when viewed from the transport direction.
Further, the ribs 421 and the ribs 431 are formed so that the total height thereof is larger than the vertical width of the paper feed port 40a (that is, the interval between the upper end surface 42a and the lower end surface 43a). The roll paper P can be bent reliably.

Further, the upper case 42 and the cover case 43 are provided with an upper end surface 42 a and a lower end surface 43 a which are a pair of upper and lower inner wall surfaces of the paper feed port 40 a. That is, the paper feed port 40 a is formed as a gap between the upper case 42 and the cover case 43 that are members different from each other.
Therefore, unlike the case where the paper feed port is formed as a single member, the vertical width of the paper feed port 40a (the width in the thickness direction of the roll paper P) is narrowed without being limited by the strength of the mold. Can be formed.

Further, by removing the cover case 43 from the upper case 42, the lower end surface 43a of the cover case 43 is displaced to a position deviating from the position opposed to the upper end surface 42a of the upper case 42, thereby opening and closing the paper feed port 40a. can do.
Therefore, the roll paper P can be easily inserted into the paper feed port 40a as compared with the case where the paper feed port is formed as a single member.

Further, the transport unit 30 includes a printing unit 31 that performs printing on the roll paper P.
Therefore, it is possible to print on the surface of the roll paper P while being transported by the transport unit 30.

[Modification]
Needless to say, embodiments to which the present invention is applicable are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, in the above-described embodiment, the ribs 421 and 431 are provided on the pair of upper and lower inner wall surfaces (the upper end surface 42a of the upper case 42 and the lower end surface 43a of the cover case 43) of the sheet feeding port 40a. However, the paper feed port 40a is configured such that each of the pair of upper and lower inner wall surfaces is in contact with the main surface of the opposite roll paper P, so that the roll paper P is bent in the vertical direction when viewed from the conveyance direction. It suffices to be configured, and the ribs 421 and 431 may not be provided.
Specifically, the paper feed port 40a may be formed in a curved shape when viewed from the conveyance direction of the roll paper P.
In this case, as shown in FIG. 4A, for example, the paper feed port 40a has a shape having only a single curved portion that is convex upward (or concave) when viewed from the conveyance direction of the roll paper P. Alternatively, as shown in FIG. 4B, it may be a wave shape in which two upwardly curved and concave curved portions are alternately connected. The pair of inner wall surfaces facing both main surfaces of the roll paper P are formed in a shape including a pair of curved portions that are substantially parallel to each other when viewed from the conveyance direction of the roll paper P. For example, a straight part may be included.
Even when the sheet feeding port 40a is curved in this way, the same effect as in the above embodiment can be obtained. That is, the roll paper P passing through the paper feed opening 40a can be curved in a direction perpendicular to the main surface when viewed from the transport direction, and re-entry of the roll paper P into the housing 40 can be suppressed.
In this case, the paper feed port 40a may have the ribs 421 and 431 described above after being formed in a curved shape, although not shown. Further, the paper feed port 40a may be formed only in one part (the lower case 41 in FIG. 4) of the housing 40, instead of being constituted by two parts. However, this is the same in the above embodiment.

Further, the roll arm 50 (the first side 51) is supported by the two parts of the lower case 41 and the upper case 42, but the roll arm 50 is supported by any one part of the housing 40. You may comprise as follows.
Specifically, for example, as shown in FIGS. 5A to 5C, the roll arm 50 may be supported only by the cover case 43. In this case, an insertion hole 43b extending in the width direction is provided at the rear end of the cover case 43, and the first side 51 of the roll arm 50 is formed in the insertion hole 43b so as to be rotatable in the insertion hole 43b. It only has to be supported. At this time, a pin 54 for preventing removal from the insertion hole 43b can be inserted into the tip of the first side 51, and the cover case 43 has a notch for escaping the pin 54 (avoids contact). 432 is preferably provided.

  Alternatively, as shown in FIGS. 6A to 6C, the roll arm 50 may be supported only by the upper case 42. In this case, an insertion hole 42d extending in the width direction is provided at the rear end portion of the upper case 42, and the first side 51 of the roll arm 50 is formed in the insertion hole 42d so as to be rotatable in the insertion hole 42d. It only has to be supported. Also at this time, a pin 54 for preventing removal from the insertion hole 42d can be inserted into the tip of the first side portion 51, and the pin 54 can escape from the upper case 42 (to avoid contact). A notch 423 is preferably provided.

As described above, by supporting the roll arm 50 on any one component of the housing 40, the degree of freedom in setting the height position of the paper feed port 40a can be increased.
That is, when the first side 51 of the roll arm 50 is supported by the two parts of the lower case 41 and the upper case 42 as in the above embodiment, the stand for supporting the first side 51 from below. The installation portion 411 needs to be provided on the lower case 41. For this reason, the paper feed port 40a must be provided so as to avoid the upright portion 411 either vertically (in the conventional case, the upright portion 411 is avoided on the lower side, and in the above embodiment, on the upper side). However, as described above, the insertion hole 43b and the insertion hole 42d are provided in the cover case 43 and the upper case 42, and the roll arm 50 is supported by one component, so that it is not necessary to provide the standing portion 411. The height position of 40a can be set more freely.
As a result, for example, as shown by a two-dot chain line in FIGS. 5A and 6A, the position of the paper feed port 40a is slightly lowered, and the paper feed port 40a is moved between the lower case 41 and the upper case 42. It can be formed in between. Although not shown, the position of the paper feed port 40a is slightly lowered so that the paper insertion port 30a of the transport unit 30 does not have to be inclined upward, and the casing 40 is moved up and down with the transport unit 30 not inclined. It can also be configured compactly.

  In addition, the cover case 43 is detachably provided on the upper case 42. However, the cover case 43 has a portion having a lower end surface 43a that is an inner wall surface of the paper feed port 40a from a position opposite to the upper case 42. What is necessary is just to be comprised so that a displacement to the position which remove | deviated is possible. Therefore, although not shown in the drawings, the cover case 43 is supported by the upper case 42 so as to be rotatable around an axis along the width direction provided at the front end portion, and the rear end portion is accompanied by this rotation. You may be comprised so that it may displace to the position which remove | deviated from the opposing position of the rear-end part of the upper case 42. FIG.

As mentioned above, although several embodiment of this invention was described, the scope of the present invention is not limited to the above-mentioned embodiment, The range of the invention described in the claim, and its equivalent range Including.
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
[Appendix]
<Claim 1>
A transport unit for transporting the medium;
A housing having a supply port for supplying the medium to the inside while accommodating the transport unit therein,
With
The supply port is
Having a pair of inner wall surfaces facing both main surfaces of the medium when the medium enters the supply port;
When each inner wall surface is in contact with each opposing main surface of the medium, the medium is placed in the supply port while the cross-sectional shape of the medium viewed from the conveyance direction at the position entering the supply port is curved. A transport device configured to enter.
<Claim 2>
Of the pair of inner wall surfaces of the supply port, one inner wall surface is provided with at least one first convex portion projecting toward the other inner wall surface side,
The other inner wall surface is provided with at least one second protrusion protruding toward the one inner wall surface at a position not facing the first protrusion in the width direction of the medium. The transport apparatus according to claim 1, wherein
<Claim 3>
The pair of inner wall surfaces of the supply port are formed such that portions excluding the first convex portion and the second convex portion are substantially parallel to each other at a predetermined interval,
The transport apparatus according to claim 2, wherein a total height of the first convex portion and the second convex portion is larger than the predetermined interval.
<Claim 4>
The housing is
A first case provided with the one inner wall surface;
A second case in which the other inner wall surface is provided, and at least a portion having the other inner wall surface is configured to be displaceable to a position deviating from the facing position of the first case;
The conveying apparatus according to claim 2 or 3, characterized by comprising:
<Claim 5>
5. The transport device according to claim 1, wherein the supply port is formed in a curved shape when viewed from the transport direction of the medium.
<Claim 6>
The pair of inner wall surfaces of the supply port are formed in a shape including a pair of curved portions that are substantially parallel to each other when viewed from the conveyance direction of the medium. The conveying apparatus as described in one.
<Claim 7>
The supply port has a shape having only a single curved portion that is convex or concave in a direction orthogonal to the main surface as viewed from the conveyance direction of the medium, or is convex in a direction orthogonal to the main surface 7. The conveying apparatus according to any one of claims 1 to 6, wherein the two curved portions having concave shapes are alternately formed in a wave shape.
<Claim 8>
The conveyance device according to claim 1, wherein the conveyance unit includes a printing unit that performs printing on the medium.
<Claim 9>
A transport method in a transport apparatus comprising: a transport unit that transports a medium; and a housing that houses the transport unit therein and has a supply port for supplying the medium to the inside.
The supply port has a pair of inner wall surfaces of the supply port facing the main surfaces of the medium when the medium enters the supply port;
By contacting each inner wall surface of the supply port and each opposing main surface of the medium, the medium remains curved while the cross-sectional shape of the medium viewed from the transport direction at the position entering the supply port is curved. A conveying method characterized by causing the liquid to enter the supply port.

DESCRIPTION OF SYMBOLS 100 Printer calculator 20 Printer part 30 Conveyance part 31 Printing part 40 Case 40a Paper feed port 41 Lower case 42 Upper case 42a Upper end surface 421 Rib 43 Cover case 43a Lower end surface 431 Rib P Roll paper

Claims (9)

A transport unit for transporting the medium;
A housing having a supply port for supplying the medium to the inside while accommodating the transport unit therein,
With
The supply port is
Having a pair of inner wall surfaces facing both main surfaces of the medium when the medium enters the supply port;
When each inner wall surface is in contact with each opposing main surface of the medium, the medium is placed in the supply port while the cross-sectional shape of the medium viewed from the conveyance direction at the position entering the supply port is curved. A transport device configured to enter. Of the pair of inner wall surfaces of the supply port, one inner wall surface is provided with at least one first convex portion projecting toward the other inner wall surface side,
The other inner wall surface is provided with at least one second protrusion protruding toward the one inner wall surface at a position not facing the first protrusion in the width direction of the medium. The transport apparatus according to claim 1, wherein The pair of inner wall surfaces of the supply port are formed such that portions excluding the first convex portion and the second convex portion are substantially parallel to each other at a predetermined interval,
The transport apparatus according to claim 2, wherein a total height of the first convex portion and the second convex portion is larger than the predetermined interval. The housing is
A first case provided with the one inner wall surface;
A second case in which the other inner wall surface is provided, and at least a portion having the other inner wall surface is configured to be displaceable to a position deviating from the facing position of the first case;
The conveying apparatus according to claim 2 or 3, characterized by comprising:   5. The transport device according to claim 1, wherein the supply port is formed in a curved shape when viewed from the transport direction of the medium.   The pair of inner wall surfaces of the supply port are formed in a shape including a pair of curved portions that are substantially parallel to each other when viewed from the conveyance direction of the medium. The conveying apparatus as described in any one.   The supply port has a shape having only a single curved portion that is convex or concave in a direction orthogonal to the main surface as viewed from the conveyance direction of the medium, or is convex in a direction orthogonal to the main surface 7. The conveying apparatus according to any one of claims 1 to 6, wherein the two curved portions having concave shapes are alternately formed in a wave shape.   The conveyance device according to claim 1, wherein the conveyance unit includes a printing unit that performs printing on the medium. A transport method in a transport apparatus comprising: a transport unit that transports a medium; and a housing that houses the transport unit therein and has a supply port for supplying the medium to the inside.
The supply port has a pair of inner wall surfaces of the supply port facing the main surfaces of the medium when the medium enters the supply port;
By contacting each inner wall surface of the supply port and each opposing main surface of the medium, the medium remains curved while the cross-sectional shape of the medium viewed from the transport direction at the position entering the supply port is curved. A conveying method characterized by causing the liquid to enter the supply port.

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