JP6922176B2 - Transport device - Google Patents

Description

The present invention relates to a conveying apparatus.

Conventionally, in a printer calculator or the like in which a calculator is provided with a printing function, a transport device for transporting a medium such as recording paper is provided (see, for example, Patent Document 1).
In this type of transport device, as shown in FIGS. 7A and 7B, a thin linear supply port through which a medium (roll paper) can pass is formed at the rear of the housing, and is outside the housing. The medium wound in a roll shape is supplied to the transport unit (printer device) in the housing through this supply port.

Japanese Patent No. 2843709

However, in the above-mentioned conventional transport device, as shown by the alternate long and short dash line in FIG. 7A, the medium discharged to the outside of the housing through the transport portion also helps to have a curl, and the transport thereof. As a result, there is a problem that the medium moves along the surface of the medium outside the housing (before printing) and re-enters the supply port.

The present invention, as described above has been made in view of the circumstances, it is an object to provide a transport apparatus which can suppress the re-entry of the medium to the conveying portion is housed housing.

In order to achieve the above object, the transport device according to the present invention
A transport unit that transports a medium that is roll paper,
A housing having a supply port for supplying the medium to the inside and a discharge port for discharging the medium to the external supply port side while accommodating the transport unit inside is provided.
The supply port is
It has a pair of inner wall surfaces that face both main surfaces of the medium when the medium enters the supply port.
When each inner wall surface comes into contact with each of the opposing main surfaces of the medium, the medium is placed in the supply port while the cross-sectional shape of the medium as seen from the transport direction at the position of entering the supply port is curved. It is configured to enter
The supply port is characterized in that it is formed in a curved shape when viewed from the transport direction of the medium.

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 housed.

It is a perspective view of the printer calculator in embodiment. It is a side sectional view which shows the internal structure of the printer part in embodiment. (A) is a view taken along the arrow E in FIG. 2, (b) is an enlarged view of a paper feed port in (a), and (c) is an enlarged view of a portion F in FIG. It is a figure for demonstrating the modification of the paper feed port. It is a figure for demonstrating the modification of the printer part in embodiment, (a) is the perspective view of the printer part, (b) is the figure which shows the roll arm supported by the cover case, (c). ) Is a detailed view of the G part of (b). It is a figure for demonstrating another modification of the printer part in embodiment, (a) is the perspective view of the printer part, and (c) is the figure which shows the roll arm supported by the upper case. It is a detailed view of the H part of (b). It is a figure which shows the conventional transport device, (a) is a side sectional view, and (b) is a view seen from the rear.

Hereinafter, embodiments when the transfer device according to the present invention is applied to a printer calculator will be described with reference to the drawings.
Although various technically preferable limitations for carrying out the present invention are attached to the embodiments described below, the scope of the present invention is not limited to the following embodiments and illustrated examples.

[Printer Calculator Configuration]
First, the configuration of the printer calculator 100 in this embodiment will be described.
FIG. 1 is a perspective view of the printer calculator 100.
As shown in this figure, the printer calculator 100 includes a printer unit 20 integrally provided on the upper side of the calculator unit 10 in a plan view, and the printer unit 20 transmits input values, calculation results, etc. of the calculator unit 10. It is configured to be printable on a medium (roll paper P in this embodiment).

FIG. 2 is a side sectional view showing the internal configuration of the printer unit 20, FIG. 3 (a) is a view taken along the arrow E of FIG. 2, and FIG. 3 (b) is a later view of FIG. 3 (a). It is an enlarged view of the paper feed port 40a, and FIG. 3 (c) is an enlarged view of the F portion of FIG.
As shown in FIG. 2, the printer unit 20 is a transport device according to the present invention, and has a substantially rectangular shape that accommodates a transport unit 30 that transports a long roll paper P in the longitudinal direction thereof and the transport unit 30. It has a housing 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 the cylindrical core C, and from the roll-shaped portion Pr wound around the core C. It 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 "upper", the back surface side is "lower", the lower side in plan view (calculator unit 10 side) is "front", and the upper side in plan view is "front". It is described as "after" to indicate the position, direction, etc. of each part. Further, as shown in FIG. 1 and the like, the right side when the printer calculator 100 is viewed from the printer unit 20 side (rear side) is represented as "right" and the left side is represented as "left". In other words, the right side in the plan view is represented as "left" and the left side in the plan view is represented as "right". Further, the “roll paper P” refers to a paper-like material unwound from the roll-shaped portion Pr unless otherwise specified.

The transport unit 30 is a printer device having a printing unit 31 inside, and prints on the surface of the roll paper P while transporting the roll paper P. More specifically, the transport unit 30 has a paper insertion port 30a provided at the lower part of the rear end and a paper discharge port 30b provided at the upper part slightly in front of the paper insertion port 30a, and is pulled in from the paper insertion port 30a. After printing on the roll paper P by the printing unit 31, the paper is discharged diagonally upward from the paper ejection port 30b.
Further, the transport portion 30 has a substantially rectangular parallelepiped shape, and is installed in a state in which the bottom surface 30c arranged on the lower side is inclined backward so that the paper insertion port 30a opens slightly upward. This is because the paper insertion port 30a faces the paper feeding port 40a provided at the upper part of the rear end of the housing 40 so that the roll paper P can be smoothly inserted into the conveying unit 30.

The housing 40 includes a lower case 41 that constitutes a substantially lower half portion thereof, an upper case 42 that constitutes a substantially upper half portion thereof, and a semi-transparent cover case 43 that is detachably provided on the upper case 42. It is composed of. All of these cases 41 to 43 are resin molded products.
The lower case 41 and the upper case 42 also serve as a housing for the calculator portion 10, and are fixed to each other at peripheral portions other than the calculator portion 10 side (front side). Of these, the upper case 42 has an opening 42c in which the upper plate portion has a large opening extending to the upper part of the rear end so that the inside of the housing 40 can be exposed. The cover case 43 has a plan view shape corresponding to the opening 42c of the upper case 42, and is formed in a substantially flat plate shape having a rear end curved downward, so that the opening 42c can be opened and closed. It is provided so that it can be attached and detached.

The housing 40 is provided with a paper feed port 40a and a paper ejection port 40b that allow the inside and outside of the housing 40 to communicate with each other.
Of these, the paper feed port 40a is a supply port for supplying the roll paper P to the inside of the housing 40, and is provided at the upper part of the rear end of the housing 40. The paper feed port 40a is a gap that is long and narrow in the vertical direction along the width direction (horizontal direction) of the printer calculator 100, and is opened slightly upward in the rear direction.

More specifically, as shown in FIGS. 3A to 3C, the paper feed port 40a is the upper end surface 42a of the upper rear end facing the opening 42c of the upper case 42 and the rear end of the cover case 43. The lower end surface 43a is formed as a pair of upper and lower inner wall surfaces between them. The upper end surface 42a and the lower end surface 43a face each other substantially parallel 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 each of the upper end surface 42a of the upper case 42 and the lower end surface 43a of the cover case 43. Specifically, the upper end surface 42a of the upper case 42 is provided with four ribs 421 protruding toward the cover case 43 side (upper side), and the lower end surface 43a of the cover case 43 is provided on the upper case 42 side (lower side). Three ribs 431 protruding toward the side) are provided with a width slightly narrower 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 substantially opposite to each other in the front-rear direction (that is, the transport direction of the roll paper P), but the printer calculator 100 In the width direction of the roll paper P (that is, the width direction of the roll paper P), the roll paper P is provided at positions not facing each other. More specifically, in the width direction of the roll paper P, ribs 431 of the cover case 43 are provided at both ends and the center of the paper feed port 40a. On the other hand, two ribs 421 of the upper case 42 are arranged 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 rib 421 of the upper case 42 and the rib 431 of the cover case 43 is larger than the vertical width of the paper feed port 40a (that is, the distance between the upper end surface 42a and the lower end surface 43a). It is formed. That is, these ribs 421 and ribs 431 are formed so that their tip portions overlap each other in a side view.

With such a configuration, in the paper feed port 40a of the present embodiment, as will be described later, the rib 421 of the upper end surface 42a and the rib 431 of the lower end surface 43a of the roll paper P passing through the paper feed port 40a. In contact with both main surfaces, the roll paper P is curved in the vertical direction (direction orthogonal to the main surfaces of the roll paper P) when viewed from the transport direction. In other words, the paper feed port 40a of the present embodiment is a pair of inner wall surfaces (upper end surface 42a of the upper case 42) facing both main surfaces of the roll paper P when the roll paper P enters the paper feed port 40a. And the lower end surface 43a) of the cover case 43, and when each inner wall surface comes into contact with the main surfaces of the roll paper P facing each other, the roll viewed from the transport direction at the position where it enters the paper feed port 40a. The roll paper P enters the paper feed port 40a while the cross-sectional shape of the paper P is curved.
The ribs 421 and 431 may be configured to be in contact with both main surfaces of the roll paper P passing through the paper feed port 40a to bend the roll paper P. For example, the positions of the ribs 421 and the ribs 431 are not particularly limited as long as they do not face each other in the width direction of the roll paper P. 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 transport 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 the ribs 421 and the ribs 431 is not particularly limited as long as they are at least one of each, and the shapes of the ribs 421 and the ribs 431 are not particularly limited. However, it is preferable that the corners are R-chamfered so as not to damage the roll paper P.

As shown in FIG. 2, the paper ejection port 40b is an ejection port for discharging the roll paper P to the outside of the housing 40, and is a long cover case 43 along the width direction of the printer calculator 100. Moreover, it is provided so as to open diagonally backward. The paper ejection port 40b is located slightly above and slightly behind the paper ejection port 30b of the transport section 30, and houses the printed roll paper P ejected diagonally upward from the paper ejection port 30b of the transport section 30. Discharge to the outside of 40.

The roll arm 50 rotatably supports the roll-shaped portion Pr of the roll paper P.
Specifically, the roll arm 50 is formed by bending a columnar metal rod in a substantially U-shape, and has a first side portion 51 and a second side portion 52 substantially parallel to each other, and these first side portions. It has a third side portion 53 that connects one end portions of the 51 and the second side portion 52 to each other. In this roll arm 50, the first side portion 51 and the second side portion 52 are along the width direction of the printer calculator 100, the first side portion 51 is supported by the upper rear end of the housing 40, and the second side portion 51 is supported. The third side portion 53 is held in a state of being tilted in a side view so that the portion 52 is located obliquely above the rear of the paper feed port 40a.
A state in which the second side portion 52 is inserted into the core C so that the roll-shaped portion Pr of the roll paper P is pulled out from the lower side to the front with the rotation of the roll arm 50. It is set to. The tip of the roll paper P is pulled into the transport portion 30 in the housing 40 through the paper feed port 40a, and the roll-shaped portion Pr moves around the second side portion 52 of the roll arm 50 as the transport portion 30 transports the paper. While rotating, the paper-like roll paper P is unwound from the tip side into a paper shape, and the paper-like roll paper P is supplied into the housing 40.

The first side portion 51 of the roll arm 50 is a portion located immediately below the paper feed port 40a and is supported by the lower case 41 and the upper case 42 of the housing 40.
Specifically, an upright 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 at 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 portion 51 of the roll arm 50 is vertically sandwiched between the upper end surface of the upright portion 411 of the lower case 41 and the upper surface (U-shaped bottom surface) in the U-shaped portion 422 of the upper case 42. It is supported in the state of being.
At this time, the first side portion 51 of the roll arm 50 is rotatably supported around its own central axis along the width direction of the printer calculator 100. Therefore, although not shown, the roll arm 50 can be rotated around the first side portion 51 and accommodated in the housing 40 through the opening 42c of the upper case 42 when not in use.
The upright portion 411 of the lower case 41 and the U-shaped portion 422 of the upper case 42 may support the first side portion 51 of the roll arm 50 so as to be rotatable, and the first side thereof may be supported. 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 of the printer calculator 100 in the width direction so as to support only both ends of the first side portion 51. It may be provided in.

[Action / Effect]
Subsequently, the operation / effect 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 to open the opening 42c of the upper case 42. Then, the portion of the cover case 43 that constitutes the paper feed port 40a (lower end surface 43a) is separated from the upper case 42, and a member of the upper case 42 that is arranged above the upper end surface 42a that forms the paper feed port 40a. The upper end surface 42a is exposed to the outside of the housing 40, and the member arranged above the paper insertion port 30a of the transport unit 30 is also eliminated, and 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 double-headed arrow A, and the removed cover case 43'is indicated by a chain double-dashed 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 paper insertion portion 30 can be inserted. The mouth 30a is exposed to the outside of the housing 40.
Next, the user places the tip end side of the roll paper P on the upper end surface 42a forming the paper feed port 40a of the upper case 42, and inserts the tip end into the paper insertion slot 30a 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, by mounting the cover case 43 on the upper case 42 again and closing the opening 42c, the roll paper P is inserted into the paper feed port 40a and properly set in the transport portion 30 in the housing 40. It becomes.
As described above, as the cover case 43 is removed from the upper case 42, the members are arranged above the upper end surface 42a of the upper case 42 forming the paper feed port 40a and above the paper insertion port 30a of the transport unit 30. Since the upper end surface 42a of the upper case 42 and the paper insertion slot 30a of the transport portion 30 are exposed to the outside of the housing 40, the roll paper is provided in the narrow paper feed 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 of inserting the roll paper P.

Then, by supporting the roll-shaped portion Pr of the roll paper P on the second side portion 52 of the roll arm 50, the roll paper P is set in the printer portion 20.
Then, when the user operates the calculator unit 10, the printer unit 20 conveys the roll paper P while being sequentially printed by the conveying unit 30. Specifically, the roll paper P is unwound from the roll-shaped portion Pr and supplied into the housing 40 from the paper feed port 40a along with the transport by the transport unit 30, and is printed by the printing unit 31 in the transport unit 30. After that, the paper is discharged from the paper ejection port 40b to the outside of the housing 40.

Here, the paper feed port 40a of the present embodiment is the upper end surface 42a (rib 421) of the upper case 42 facing both main surfaces of the roll paper P passing through the paper feed port 40a and below the cover case 43. Each of the end surface 43a (rib 431) is in contact with the main surface of the opposite roll paper P, so that the roll paper P is curved in a direction orthogonal to the main surface when viewed from the transport direction. Has been done.
That is, since the roll paper P that is curved in this way cannot pass through the paper feed port 40a, the tip of the non-curved (almost linear) roll paper P discharged from the housing 40 feeds the paper. It is possible to prevent the entry into the mouth 40a.

Specifically, in the paper feed port 40a of the present embodiment, the ribs 421 of the upper case 42 and the ribs 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 orthogonal to the main surface when viewed from the transport direction.
Further, the total height of the rib 421 of the upper case 42 and the rib 431 of the cover case 43 is larger than the vertical width of the paper feed port 40a (that is, the distance between the upper end surface 42a and the lower end surface 43a). Since it is formed, the roll paper P can be curved more reliably.

Further, in the paper feed port 40a of the present embodiment, the lower upper end surface 42a of the inner wall surface is provided on the upper case 42, and the upper lower end surface 43a is provided on the cover case 43. That is, the paper feed port 40a is formed as a gap between the upper case 42 and the cover case 43, which are separate members from each other. Therefore, unlike the case where the paper feed port is formed of a single member, the vertical width of the paper feed port 40a (so that the roll paper P discharged from the housing 40 does not easily re-enter the paper feed port 40a). The width of the roll paper P in the thickness direction) can be easily narrowed.
That is, when the paper feed port is formed of a single member, it is difficult to form the paper feed port narrowly because the molding die (molded portion of the paper feed port) cannot be sufficiently thin due to the limitation of strength. However, in the present embodiment, the paper feed port 40a is formed between the two parts of the upper case 42 and the cover case 43, so that the paper feed port 40a is narrowed without causing a problem during molding. Can be formed.

Further, 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 and the paper feed port 40a. It is supported in the upper position.
Therefore, as compared with the conventional case in which the paper feed port is formed at a position as low as that of the transport portion, the roll paper P has a larger diameter while suppressing the bending angle (that is, the transport resistance) of the roll paper P when passing through the paper feed port 40a. The roll-shaped portion Pr can be used.
That is, in the conventional case where the position of the paper feed port is low, the roll-shaped portion cannot be arranged 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 conventionally provided while suppressing the bending angle of the roll paper P when passing through the paper feed port 40a. Can also be provided above. As a result, the roll arm 50 can support the roll-shaped portion Pr having a diameter larger than that of the conventional one.

As described above, according to the printer unit 20 of the present embodiment, the paper feed port 40a of the housing 40 is a pair of upper and lower inner wall surfaces (upper end surface 42a of the upper case 42 and lower end surface 43a of the cover case 43). Is brought into contact with the main surface of the opposite roll paper P, so that the roll paper P passing through the paper feed port 40a is curved in a direction orthogonal to the main surface when viewed from the transport direction.
Therefore, it is possible to prevent the tip of the non-curved roll paper P discharged from the housing 40 from entering the paper feed port 40a, and eventually the roll paper P can be re-entered into the housing 40. It can be suppressed.

Further, since the rib 421 provided on the upper end surface 42a of the upper case 42 and the rib 431 provided on the lower end surface 43a of the cover case 43 are provided at positions not facing 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 curved in a direction orthogonal to the main surface when viewed from the transport direction.
Further, these ribs 421 and 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 distance between the upper end surface 42a and the lower end surface 43a). The roll paper P can be reliably curved.

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

Further, by attaching and detaching the cover case 43 to and from the upper case 42, the lower end surface 43a of the cover case 43 is displaced to a position deviated from the opposite position of the upper end surface 42a of the upper case 42, and the paper feed port 40a is opened and closed. 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 of a single member.

Further, the transport unit 30 has a printing unit 31 that prints on the roll paper P inside.
Therefore, it is possible to print on the surface of the roll paper P while being conveyed by the conveying unit 30.

[Modification example]
It goes without saying that the embodiments to which the present invention can be applied are not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the above embodiment, the ribs 421 and 431 are provided on the upper and lower inner wall surfaces of the paper feed port 40a (the upper end surface 42a of the upper case 42 and the lower end surface 43a of the cover case 43). However, in the paper feed port 40a, each of the upper and lower pairs of inner wall surfaces comes into contact with the main surfaces of the opposite roll papers P, so that the roll papers P are curved in the vertical direction when viewed from the transport direction. It may be configured and may not have ribs 421 and 431.
Specifically, the paper feed port 40a may be formed in a curved shape when viewed from the transport 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 (or concave) upward when viewed from the transport direction of the roll paper P. It may be present, or as shown in FIG. 4 (b), it may be wavy in which two upward convex and concave curved portions are alternately connected. Further, the paper feed port 40a is formed so that a pair of inner wall surfaces facing both main surfaces of the roll paper P include a pair of curved portions substantially parallel to each other when viewed from the transport direction of the roll paper P. For example, a straight portion may be included.
Even when the paper feed port 40a is curved in this way, the same effect as that of the above embodiment can be obtained. That is, the roll paper P passing through the paper feed port 40a can be curved in a direction orthogonal to the main surface when viewed from the transport direction, and the re-entry of the roll paper P into the housing 40 can be suppressed.
In this case, although not shown, the paper feed port 40a may have the ribs 421 and 431 described above after being formed in a curved shape. Further, the paper feed port 40a may not be formed between two parts, but may be formed only in one part of the housing 40 (lower case 41 in FIG. 4). However, this also applies to the above embodiment.

Further, although the roll arm 50 (the first side portion 51) is supported by two parts of the lower case 41 and the upper case 42, the roll arm 50 is supported by any one part of the housing 40. It may be configured 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 is provided at the rear end of the cover case 43 along the width direction, and the first side portion 51 of the roll arm 50 is provided in the insertion hole 43b so as to be rotatable in the insertion hole 43b. You just have to support it. At this time, a pin 54 for preventing the pin 54 from coming off from the insertion hole 43b can be inserted into the tip of the first side portion 51, and the cover case 43 has a notch for escaping (avoiding contact) the pin 54. It is preferable to provide 432.

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 is provided at the rear end of the upper case 42 along the width direction, and the first side portion 51 of the roll arm 50 is provided in the insertion hole 42d so as to be rotatable in the insertion hole 42d. You just have to support it. Also at this time, a pin 54 for preventing disconnection from the insertion hole 42d can be inserted into the tip of the first side portion 51, and the pin 54 can be escaped (avoid contact) in the upper case 42. It is preferable to provide a notch 423.

By supporting the roll arm 50 on any one component of the housing 40 in this way, it is possible to increase the degree of freedom in setting the height position of the paper feed port 40a.
That is, when the first side portion 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 standing portion 51 for supporting the first side portion 51 from below. It is necessary to provide the setting portion 411 in the lower case 41. Therefore, the paper feed port 40a must be provided with the upright portion 411 avoiding either above or below (conventionally, the upright portion 411 is avoided on the lower side, and in the above embodiment, on the upper side). However, as described above, the cover case 43 and the upper case 42 are provided with the insertion holes 43b and the insertion holes 42d, and the roll arm 50 is supported by one component, so that it is not necessary to provide the upright portion 411. The height position of 40a can be set more freely.
As a result, for example, as shown by the alternate long and short dash line in FIGS. 5 (a) and 6 (a), the position of the paper feed port 40a is slightly lowered, and the paper feed port 40a is connected to the lower case 41 and the upper case 42. It can be formed between them. Further, although not shown, the position of the paper feed port 40a is slightly lowered to eliminate the need for the paper insertion port 30a of the transport unit 30 to face diagonally upward, and the housing 40 is moved up and down with the transport unit 30 not tilted. It can also be configured compactly.

Further, the cover case 43 is detachably provided on the upper case 42, but in the cover case 43, the portion having the lower end surface 43a which is the inner wall surface of the paper feed port 40a is located from the opposite position of the upper case 42. It suffices if it is configured so that it can be displaced to a detached position. Therefore, although not shown, the cover case 43 is supported by the upper case 42 so as to be rotatable about an axis along the width direction provided at the front end portion, and the rear end portion is rotatably supported by the rotation. It may be configured to be displaced to a position deviated from the opposite position of the rear end portion of the upper case 42.

Although some embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but the scope of the invention described in the claims and the equivalent range thereof. include.
The inventions described in the claims originally attached to the application of this application are added below. The item number of the claim described in the appendix is as per the scope of the patent claim originally attached to the application of this application.
[Additional Notes]
<Claim 1>
A transport unit that transports the medium and
A housing having a supply port for accommodating the transport unit and supplying the medium to the inside,
With
The supply port is
It has a pair of inner wall surfaces that face both main surfaces of the medium when the medium enters the supply port.
When each inner wall surface comes into contact with each of the opposing main surfaces of the medium, the medium is placed in the supply port while the cross-sectional shape of the medium as seen from the transport direction at the position of entering the supply port is curved. A transport device characterized in that it is 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 protruding toward the other inner wall surface side.
The other inner wall surface is provided with at least one second convex portion projecting toward the inner wall surface side at a position not facing the first convex portion in the width direction of the medium. The transport device according to claim 1.
<Claim 3>
The pair of inner wall surfaces of the supply port are formed so that the first convex portion and the portion other than the second convex portion are formed substantially parallel to each other at predetermined intervals.
The transport device according to claim 2, wherein the total height of the first convex portion and the second convex portion is larger than the predetermined interval.
<Claim 4>
The housing is
The first case provided with one of the inner wall surfaces and
A second case in which the other inner wall surface is provided and at least a portion having the other inner wall surface can be displaced to a position deviated from the facing position of the first case.
The transport device according to claim 2 or 3, wherein the transport device has.
<Claim 5>
The transport device according to any one of claims 1 to 4, wherein the supply port is formed in a curved shape when viewed from the transport direction of the medium.
<Claim 6>
Any of claims 1 to 5, wherein the pair of inner wall surfaces of the supply port is formed in a shape including a pair of curved portions substantially parallel to each other when viewed from the transport direction of the medium. The transport device according to item 1.
<Claim 7>
The supply port has a shape having only a single convex or concave curved portion in a direction orthogonal to the main surface when viewed from the transport direction of the medium, or a convex shape in a direction orthogonal to the main surface. The transport device according to any one of claims 1 to 6, wherein the two concave curved portions are formed in a wavy shape in which two concave portions are alternately connected.
<Claim 8>
The transport device according to any one of claims 1 to 7, wherein the transport unit has a printing unit that prints on the medium inside.
<Claim 9>
A transport method in a transport device including a transport unit for transporting a medium and a housing having a supply port for accommodating the transport unit and supplying the medium to the inside.
The supply port has a pair of inner wall surfaces of the supply port facing both main surfaces of the medium when the medium enters the supply port.
By bringing each inner wall surface of the supply port into contact with each of the facing main surfaces of the medium, the medium has a curved cross-sectional shape as seen from the transport direction at a position where the medium enters the supply port. Is a transport method, characterized in that the feed is entered into the supply port.

100 Printer Calculator 20 Printer unit 30 Transport unit 31 Printing unit 40 Housing 40a Paper feed port 41 Lower case 42 Upper case 42a Upper end surface 421 Ribs 43 Cover case 43a Lower end surface 431 Ribs P roll paper

Claims (7)

A transport unit that transports a medium that is roll paper,
A housing having a supply port for supplying the medium to the inside and a discharge port for discharging the medium to the external supply port side while accommodating the transport unit inside is provided.
The supply port is
It has a pair of inner wall surfaces that face both main surfaces of the medium when the medium enters the supply port.
When each inner wall surface comes into contact with each of the opposing main surfaces of the medium, the medium is placed in the supply port while the cross-sectional shape of the medium as seen from the transport direction at the position of entering the supply port is curved. It is configured to enter
The transport device is characterized in that the supply port is formed in a curved shape when viewed from the transport direction of the medium. Of the pair of inner wall surfaces of the supply port, one inner wall surface is provided with at least one first convex portion protruding toward the other inner wall surface side.
The other inner wall surface is provided with at least one second convex portion projecting toward the inner wall surface side at a position not facing the first convex portion in the width direction of the medium. The transport device according to claim 1. The pair of inner wall surfaces of the supply port are formed so that the first convex portion and the portion other than the second convex portion are formed substantially parallel to each other at predetermined intervals.
The transport device according to claim 2 , wherein the total height of the first convex portion and the second convex portion is larger than the predetermined interval. The housing is
The first case provided with one of the inner wall surfaces and
The other inner wall surface is provided, and at least the portion having the other inner wall surface is provided with a second case configured to be displaceable from the facing position of the first case. The transport device according to claim 2 or 3. Said pair of inner wall surfaces of the supply port, when viewed from the transport direction of the medium, one of claims 1, wherein according to claim 4 that is formed into a shape that includes a pair of curved portions substantially parallel to each other The transport device according to item 1. The supply port has a shape having only a single convex or concave curved portion in a direction orthogonal to the main surface when viewed from the transport direction of the medium, or a convex shape in a direction orthogonal to the main surface. and conveying apparatus as claimed in any one of claims 5 to two curved portions of the concave, characterized in that it is formed in a corrugated shape with continuous alternately. The transport unit, the transport device according to any one of claims 1 to 6, characterized in that it comprises a printing unit for printing on the medium therein.

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