JPH10139224A - Recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recorder an opening and closing cover of which can be smoothly opened and closed. SOLUTION: This device is constituted to be furnished with a device main body, an opening and closing cover 32 installed on the device main body free to turn between an opening position and a closing position around a turning axis 124 as its center, a carrier route provided on the device main body, rolled recording paper to be carried through the carrier route and a recording means to record information on recording paper 100 carried through the carrier route. In this case, the rolled recording paper is supported on the opening and closing cover 32 free to rotate around a rotating axis 167 actually extending in parallel with the turning axis 124, and the turning axis 124 of the opening and closing cover 32 and the rotating axis 167 of the rolled recording paper substantially coincides with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording information on a roll of recording paper.

[0002]

2. Description of the Related Art Conventionally, recording apparatuses using a roll of recording paper have been widely used. As this type of recording apparatus, there are, for example, a printer for printing on a receipt or the like, a facsimile for recording a transmitted signal, and the like. Such an apparatus includes an apparatus main body, a transport path provided in the apparatus main body, and a transport path. And a recording means for recording information on the recording paper conveyed through the conveyance path. An opening / closing cover is attached to the apparatus main body so as to be pivotable between an open position and a closed position. The opening / closing cover is provided with recording paper holding means for holding the rolled recording paper, and the recording paper holding means rotatably supports the rolled recording paper.

[0003] The roll-shaped recording paper generally has a thin cylindrical core member, and is formed by winding an elongated recording paper around the core member as required. When replacing the recording paper with a new roll-shaped recording paper, first, the opening / closing cover is opened to the open position. Then, in a state where the open position is held, the core member of the roll-shaped recording paper (some recording paper may remain) is removed from the recording-paper holding means, and then a new roll-shaped recording paper is held. Attach to the means. Thereafter, the opening / closing cover is moved to the closed position. Thus, the exchange of the roll-shaped recording paper can be performed.

[0004]

However, in the conventional recording apparatus, the center of rotation of the roll-shaped recording paper (generally, since the roll-shaped recording paper is wound substantially uniformly in a cylindrical shape, (The center of gravity is located at the center of rotation of the paper) and the center of rotation of the opening / closing cover are different. Due to this, there are the following problems to be solved. That is, in the conventional recording apparatus, the center of rotation of the opening / closing cover is disposed at the rear end of the apparatus main body, and the center of rotation of the roll-shaped recording paper is disposed in front of the center of rotation at a certain interval. ing. Therefore, when opening and closing the cover from the closed position to the open position, or when closing the cover from the open position to the closed position, the roll-shaped recording paper acts as a load when rotating, and the cover is smoothly moved. Can not be opened and closed.

In particular, in the case where the opening / closing cover is largely opened and the roll-shaped recording paper is moved in an arc shape beyond the uppermost position, when the opening / closing cover is closed from the open position to the closed position, the above-described operation is performed. The roll recording paper acts in the closing direction, that is, the falling direction, from the point where it moves downward beyond the uppermost position, and the force acting in the closing direction rapidly increases. The force in the closing direction increases as the roll recording paper used increases, and increases as the distance between the center of rotation of the opening / closing cover and the rotation center of the roll recording paper increases. When such a force in the closing direction is large, the opening / closing cover is easily dropped toward the closing position during the closing operation, and the opening / closing cover is easily damaged, and there is a risk that the operator may pinch a finger.

An object of the present invention is to provide a recording apparatus capable of smoothly opening and closing an opening and closing cover.

[0007]

According to the present invention, there is provided an apparatus main body,
An opening / closing cover attached to the apparatus main body so as to be pivotable between an open position and a closed position about a pivot axis, a transport path provided in the apparatus main body, and a roll-shaped recording paper transported through the transport path And a recording unit for recording information on recording paper conveyed through the conveyance path, wherein the roll-shaped recording paper has a center on a rotation axis extending substantially parallel to the rotation axis. The recording apparatus is rotatably supported by the opening and closing cover, and the rotation axis of the opening and closing cover substantially coincides with the rotation axis of the roll-shaped recording paper. According to the present invention, since the center of rotation of the opening / closing cover substantially coincides with the center of rotation of the roll-shaped recording paper supported by the opening / closing cover, the opening / closing cover is swung between the open position and the closed position. Also, the roll-shaped recording paper does not substantially act as a load of the turning motion, and the opening and closing cover can be smoothly opened and closed.

In the present invention, the opening / closing cover may further include a discharge opening for discharging the roll-shaped recording paper conveyed through the conveyance path, and the roll-shaped recording paper discharged through the discharge opening may be provided outside the apparatus main body. And a guide rib for guiding the guide rib. According to the present invention, since the opening / closing cover is provided with a guide rib for guiding the roll-shaped recording paper to the outside of the apparatus main body, the leading end of the roll-shaped recording paper discharged from the discharge opening is connected to the apparatus main body and the opening / closing cover. Is reliably prevented from penetrating into the gap between them.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a recording apparatus according to the present invention will be described with reference to the accompanying drawings. FIG.
2 and FIG. 2, the recording apparatus shown includes an apparatus main body 2, and the apparatus main body 2 includes a lower housing 4 placed on a table or the like and an upper housing 6 mounted on the lower housing 4, for example. A table 8 is provided in the lower housing 4, and the table 8 extends substantially horizontally from a front end (lower right in FIG. 1) to a rear end (upper left in FIG. 1) of the apparatus main body 2. Between the lower housing 4 and the upper housing 6, there is provided an elongated slit 10 which is open on one side (lower left side in FIG. 1), and the table 8 extends in the slit 10. A cut sheet 12 composed of a plurality of copy sheets or the like is positioned on the upper surface of the table 8 through the slits 10 and records information such as predetermined prints on the surface of the cut sheet 12 while being conveyed along the table 8. Is performed. Such a cut sheet 12 is, for example, a copy sheet for a credit card,
It is used when simultaneously making copies of required numbers for shops, customers, clerks, and the like.

An operation panel 16 is provided at a front right portion of the lower housing 4. The operation panel 16 is provided with switches 18 and 20 for selecting a print mode and various display lamps 22, 24 and 26. The switch 18 is for selecting printing on the cut sheet 12. By pressing the switch 18, printing can be performed on cut sheet by first printing means (described later). The switch 20
Is for selecting printing on a roll-shaped recording paper (to be described later). Pressing the switch 20 causes the second printing means (described below) to perform printing on the roll-shaped recording paper. Can be. The lamp 22 is lit continuously to indicate that the recording apparatus is energized, and blinks to indicate that the cut sheet is being loaded. The lamp 24 is lit continuously to indicate that the cut sheet 12 is in the carry-out state, and blinks to indicate that a trouble has occurred in the recording apparatus. The lamp 26 is lit continuously to indicate that the cut sheet 12 is in the released state, and blinks to indicate that it is offline with an external host device, for example, a host computer.

The upper housing 6 has side wall covers 28, 30 provided on both sides.
Between 0, an opening / closing cover 32 is provided. The opening / closing cover 32 is attached to the upper housing 6 so as to be pivotable between a closed position shown in FIGS. 1 and 2 and an open position shown in FIG. When in the closed position, the open / close cover 32
The upper housing 6 covers the front surface, the top surface, the upper portion of the rear surface, and the upper portions of both side surfaces, and the roll-shaped recording paper (described later) attached thereto is positioned at a predetermined position. On the other hand, when the user turns to the open position, the front and top surfaces of the upper housing 6 are opened, so that the roll-shaped recording paper can be easily exchanged as described later.

In this embodiment, a display means 34 for displaying data specified by an external host device is provided at the right rear portion of the upper housing 6. Display means 3
4 is a support rod 3 extending upward from the upper housing 6.
6 and a display section 38 is provided at the upper end of the support rod 36. A rectangular display panel 40 is provided on the surface of the display unit 38, and data from the host device is displayed on the display panel 40.

Next, an outline of the configuration of the above-described recording apparatus will be described mainly with reference to FIG. At a predetermined portion of the table 8 of the lower housing 4, a plurality of openings are provided. A photo sensor 44 is provided corresponding to the opening 42. The photo sensor 44 can be composed of, for example, a transmission type sensor, and is composed of a combination of a light emitting element that emits light and a light receiving element that receives light from the light emitting element. The photo sensor 44 detects a cut sheet on the table 8. The roller pair 48 and the first
Printing means 50 is provided. The roller pair 48 is composed of a pair of rollers 52 and 54, and is rotated in the direction indicated by the arrow when the cut sheet 12 (FIG. 1) is transported in the insertion direction indicated by the arrow 56. When it is conveyed toward, it is turned in the direction opposite to the direction shown by the arrow. In this embodiment, the first printing unit 50 is configured by an impact-type printing unit, and includes a printing unit 60 including a print head and a platen 62 facing the printing unit 60. As understood from FIG. 4, a ribbon cassette 64 is detachably mounted on the printing unit 60. Above the table 8, guide plates 66 and 68 are arranged at intervals in the transport direction of the cut sheet 12. With this configuration, the table 8, the roller 52, and the platen 62 define a lower side of the first transport path 70 provided on the lower housing 4 for transporting the cut sheet 12, and the roller 54 , Printing unit 6
0 and guide plates 66 and 68 are provided in the upper housing 6 to define an upper side of the first transport path 70, and the first transport path 70 is provided with a slit between the lower housing 4 and the upper housing 6. 10 are provided correspondingly.

In this embodiment, a second printing means 72 is provided above the first printing means 50. The second printing means 72 is constituted by a thermal recording type printing means, and comprises a printing head 74 having a line type thermal head and a printing unit 78 provided with a platen roller 76 facing the printing head 74. . The second transport path 80 passes between the print head 74 and the platen roller 76.
Is extending. At the upstream end of the second transport path 80, a roll-shaped recording paper 82 is disposed, and the roll-shaped recording paper 82 is exchangeably attached to the opening / closing cover 32 as described later. A pair of guide plates 84 and 86 are mounted on the printing unit 78 at predetermined intervals. A cutter unit 88 is provided above the second printing unit 72. The cutter unit 88 includes a fixed blade 90 and a fixed blade 9.
It has a movable blade 92 movable toward zero, and cuts the roll-shaped recording paper 82 to a predetermined length. The cutter unit 88 includes
Further, a pair of guide plates 94 and 96 are provided at predetermined intervals. In this recording apparatus, the second transport path 80
The second outlet 98 is provided on the upper surface of the opening / closing cover 32 in association with the upward extension of the opening / closing cover 32. With this configuration, the guide plate 84 and the print head 7
4, the guide plate 94 and the fixed blade 90
The guide plate 86, the platen roller 76, the guide plate 96, and the movable blade 92 define the other side of the second transfer path 80 for transferring the second transfer path 80.

In this recording apparatus, when printing on the cut sheet 12 (FIG. 1), the cut sheet 12 is conveyed through the first conveying path 70 while the cut sheet 12 is conveyed through the first conveying path 70. Then, a predetermined printing record is made on the surface by the first printing means 50, and the cut paper sheet on which printing is completed is discharged out of the apparatus main body 2 through the insertion / discharge port 58. When printing on the roll-shaped recording paper 82, the recording paper pulled out from the roll-shaped recording paper 82 is transferred to the second transport path 80.
While the paper is conveyed through the second conveyance path 80, a predetermined print record is performed on the surface by the second printing means 72, and the recorded recording paper is indicated by a two-dot chain line 1.
00, the second outlet 9 of the opening / closing cover 32
8 to the outside of the apparatus main body 2. Such recording on the roll-shaped recording paper 82 can be used, for example, as a receipt (receipt) to be delivered to the customer. When printing on both the cut sheet 12 and the roll-shaped recording paper 82, the cut sheet 12 is conveyed through the first conveyance path 70 and the roll-shaped recording paper 82 is conveyed through the second conveyance path 80. Conveyed. In this recording apparatus, the second printing means 72 functions as a recording means for printing and recording on the roll-shaped recording paper 82.

Next, with reference to FIGS. 4 and 5, the opening / closing structure of the opening / closing cover 32 and the support structure of the roll-shaped recording paper 82 will be described. Inside the side wall covers 28, 30 (FIGS. 1 and 2) of the upper housing 6, a pair of upper support walls 102 are spaced laterally (from the lower left to the upper right in FIG. 4, and the horizontal direction in FIG. 5). , 104 are provided. Although these upper support walls 102 and 104 are formed separately from the side wall covers 28 and 30,
You may make it form integrally with 8,30. Guide recesses 106 and 107 are formed on the inner surfaces of the upper support walls 102 and 104, respectively, and extend linearly downward from the upper end, and circular recesses 10 are formed at the lower ends of the guide recesses 106 and 107, respectively.
8, 109 are provided (see also FIG. 8). On the other hand, the opening / closing cover 32 is a front wall 1 that covers the front surface of the upper housing 6.
10, a top wall 112 that covers the top surface of the upper housing 6, and an arc-shaped rear wall 11 that covers the rear and top surfaces of the top housing 6
4 (FIGS. 2 and 4) and both side walls 116 and 118 that cover the upper part of both sides of the upper housing 6. Side walls 11
Support projections 120 and 122 projecting from both sides are integrally provided on the rear outer surfaces of the rear parts 6 and 118. Each of the support protrusions 120 and 122 has a short cylindrical shape corresponding to the circular recesses 108 and 109, and the opposing portions are cut out linearly. The short width W1 of the support protrusions 120, 122 is set to be somewhat smaller than the width W2 of the guide recesses 106, 107 (FIG. 8).

The open / close cover 32 is positioned at a position indicated by a two-dot chain line 32A in FIG. 6, that is, a closed position indicated by a solid line in FIG. 6 (a position illustrated in FIGS. 1 to 3) and an open position indicated by a two-dot chain line 32B in FIG. (The position shown in FIG. 4), the guide recesses 106, 10 of the upper support walls 102, 104 are moved.
7 and the supporting protrusions 1 of the side walls 116 and 118 of the opening / closing cover 32
8, are positioned in the positional relationship shown in FIG. 8, that is, the support protrusions 120, 122 are aligned with the guide recesses 106, 107 and are vertically elongated. Therefore, the support protrusions 120 and 122 are
6, 118 can be positioned in the circular recesses 108, 109 through the guide recesses 106, 107, so that the opening / closing cover 32 is
Is rotatably mounted between the side walls 116 and 118 of the main body. When the support protrusions 120 and 122 are mounted on the circular recesses 108 and 109, the center axes of the support protrusions 120 and 122 extend in the lateral direction of the apparatus main body 2, and the opening / closing cover 32 is in the closed position and the open position. Between the support projections 120, 12
2 can be swiveled around the center axis as a swivel axis 124 (FIG. 5). When the opening / closing cover 32 is turned to the closed position (or the open position), as shown by the two-dot chain line in FIG.
8, 109, the support projections 120, 122 are prevented from coming off the circular recesses 108, 109. In the above-described positional relationship, since the support protrusions 120 and 122 and the guide recesses 106 and 107 coincide with each other, the support protrusion 12
The opening and closing cover 32 can be disengaged from the upper housing 6 by moving the reference numerals 0 and 122 upward through the guide concave portions 106 and 107.

At the rear of the side walls 116 and 118 of the opening / closing cover 32, elastic pieces 126 (only those provided on the side walls 116 are shown in FIG. 6) are integrally formed by providing U-shaped cut grooves. Provided, each elastic piece 12
6 are provided with hemispherical projections 128 protruding outward (two are shown in FIG. 5). The protrusion 128 of the elastic piece 126 provided on one side wall 116 is pressed against the inner surface of the upper support wall 102 by the elasticity of the elastic piece 126 itself,
The protrusion 12 of the elastic piece 126 provided on the other side wall 118
8 is pressed against the inner surface of the other upper support wall 104 by the elasticity of the elastic piece 126 itself. Therefore, the frictional force acting between the hemispherical projection 128 and the upper support walls 102 and 104 acts as a braking force when turning the opening / closing cover 32, and an appropriate turning force is required to turn the opening / closing cover 32. Thus, turning motion due to its own weight can be prevented, and safety can be improved. This braking force can be adjusted by changing the size of the projection 128, in other words, the degree of deformation of the elastic piece 126.

In this embodiment, when the open / close cover 32 is positioned at the closed position, as understood from FIG.
A part of the lower end of the lower housing 4 contacts a part of the upper surface of the lower housing 4 (the upper surface in the vicinity of the part where the operation panel 16 is provided),
This prevents the pivoting movement of the opening / closing cover 32 beyond the closed position. Although not shown, the opening / closing cover 32 is provided with a locking claw member for locking the opening / closing cover 32 at the closed position. On the other hand, opening and closing cover 3
2 to 4, a part of the arc-shaped rear wall 114 abuts on the upper edge of the rear wall 130 of the upper housing 6 and goes beyond the closed position of the opening / closing cover 32, as understood from FIGS. Turning movement is prevented.

In this embodiment, as shown in FIGS. 2 and 3, the lower end of the arc-shaped rear wall 114 of the opening / closing cover 32 is
A pair of guide ribs 1 are spaced apart in the horizontal direction (from the lower left to the upper right in FIG. 2 and the direction perpendicular to the paper in FIG. 3).
34 are provided integrally. A pair of guide ribs 134
Is substantially triangular, and is located slightly above the upper edge of the rear wall 130 of the upper housing 6 when the opening / closing cover 32 is in the closed position. It extends obliquely downward linearly from the outer surface of the opening / closing cover 32 to the rear of the rear wall 130. When such a guide rib 134 does not exist, the recording paper 100 discharged through the discharge port 98 of the opening / closing cover 32 is not used.
2 is moved along the upper surface of the opening / closing cover 3
There is a danger of intrusion into the gap existing between the second arcuate rear wall 114 and the rear wall 130 of the upper housing 6. On the other hand, when the guide rib 134 is provided as in this embodiment, the leading end of the recording paper 100 discharged through the discharge port 98 is formed along the upper surface of the guide rib 134 by the rear wall 130 of the lower housing 4. The recording paper 100 is guided to the outside and is reliably prevented from entering the gap.

In the embodiment, a rectangular shape corresponding to the guide rib 134 is provided at the upper end of the rear wall 130 of the upper housing 6 in order to allow the opening / closing cover 32 to pivot toward the open position. A notch 136 (FIG. 2) is formed,
Therefore, when the cover 32 is turned, the guide rib 134 is moved through the notch 136.
Such a guide rib 134 and the notch 136 are used to guide the recording paper 100 to the outside of the rear wall 130 more reliably.
Three or more devices may be provided at intervals in the lateral direction of the device main body 2.

Next, with reference to FIGS. 3, 4 and 5, the structure for supporting the roll-shaped recording paper 82 will be described.
A pair of mounting projections 142 and 144 are provided on the inner surface of the arc-shaped rear wall 114 of the opening / closing cover 32 at intervals in the horizontal direction (the left-right direction in FIG. 5). A support member 148 is attached to an attachment protrusion 142 provided inside the side wall 116 by an attachment screw 146. Support member 14
8 has a main body 150 extending downward in FIG. 5 from the mounting projection 142, and a recording paper support 152 is provided at the tip of the main body 150. The support member 148 is further provided integrally with an operation section 154 extending in a substantially inverted L-shape from the tip of the main body section 150. Also,
A support member 158 is attached to an attachment protrusion 144 provided inside the side wall 118 by an attachment screw 156. The support member 158 has a main body 160 extending downward from the mounting protrusion 144 in FIG.
A recording paper supporting portion 162 is provided at the leading end of the recording paper. The recording paper support portions 152 and 162 of the support members 148 and 158 have substantially the same configuration, and one of the support portions 152 will be described with reference to FIG. In FIG. 7, the recording paper support 152 has a circular first protrusion 164, and the first protrusion 164 is provided on the inner surface of the distal end of the main body 150. The first protrusion 164 protrudes inward, and a circular second protrusion 166 that protrudes further inward is provided concentrically on the distal end surface of the first protrusion 164. The center axis 167 of the second protrusion 166 of the support members 148, 158
(FIG. 7) extends in the lateral direction of the apparatus main body 2 and substantially coincides with the pivot axis 124 of the opening / closing cover 32 as shown in FIG. Such support members 148, 158 can be formed by integral molding of a synthetic resin. With this configuration, the support members 148, 158 themselves can have some elasticity. With this configuration, the operation unit 154 of the support member 148 is
The support member 148 is pushed outwardly as shown in FIG.
As shown by a two-dot chain line in FIG. 3, the space between the recording paper support portions 152 and 162 of the support members 148 and 158 can be somewhat widened. Such a pair of support members 148 and 158 constitute a recording paper holding unit that holds the roll-shaped recording paper 82.

The roll-shaped recording paper 82 attached to the recording paper holding means of the opening / closing cover 32 has a configuration as shown in FIGS. That is, the roll-shaped recording paper 8
2 has an elongated cylindrical core member 170, and the recording paper 100 is wound around the outer peripheral surface of the core member 170 in multiple layers. The core member 170 is formed of relatively hard paper, and its center is hollow. The axial length of the core member 170 and the width of the recording paper 100 (the axial length when wound in a roll) are substantially equal.
When the recording paper 100 is wound around 70, both end surfaces thereof define substantially the same end surface (see FIGS. 5 and 7).

The present embodiment is further configured as follows. As shown in FIG. 7, the support members 148, 1
The outer diameter of the first projection 164 is set to be somewhat smaller than the outer diameter of the core member 170 of the roll-shaped recording paper 82. The outer diameter of the second protrusion 166 of the support members 148, 158 is set substantially equal to or slightly smaller than the inner diameter of the hollow hole 170 of the core member 170. 166 is a hollow hole 170 of the core member 170.
It can be inserted and removed from inside. Further, the core member 17
0 is the first length of the support members 148, 158.
The length is set to be slightly longer than the interval between the protrusions 164. Therefore, when the roll-shaped recording paper 82 is attached as described later, both end surfaces of the core member 170 act on the front end surface of the second protrusion 166 to support the support member. 148, 158 are slightly elastically deformed on both sides.

Next, a procedure for mounting the roll-shaped recording paper 82 will be described. When the roll-shaped recording paper 82 is mounted (for example, when a new roll-shaped recording paper 82 is mounted for use), the open / close cover 32 is closed as shown in FIG. 6 (shown in FIGS. 6 from the position shown by the solid line) to the open position (the position shown in FIG. 4 and the position shown by the two-dot chain line 32B in FIG. 6). Such positioning can be performed by lifting, for example, the front wall 110 of the opening / closing cover 32, and the opening / closing cover 32 is pivoted about a pivot axis 124.

When the cover 32 is positioned at the open position, the inside of the cover 32 is opened outward as shown in FIG. A space for mounting 82 is created. In this embodiment, the cutter unit 88 is attached to the printing unit 78 of the second printing means 72 so as to be pivotable between a closed position (the position shown in FIG. 3) and an open position (the position shown in FIG. 4). . The cutter unit 88 is normally held at the closed position and cuts the recording paper 100 from the roll-shaped recording paper 82. When the roll-shaped recording paper 82 is mounted, the cutter unit 88 is positioned at the open position. When the cutter unit 88 is positioned at the open position, as shown in FIG.
The gap between the and the cutter unit 88 is opened. Further, when the cover 32 is positioned at the open position, the front surface of the upper housing 6 is opened, so that the ribbon cassette 64 can be detachably mounted on the printing unit 60.

Next, in a state where the opening / closing cover 32 is opened, as shown in FIG.
4 in the direction indicated by arrow 168 to
8, 158, the distance between the recording paper support portions 152, 162 is slightly increased, and in this expanded state, the support member 1 is inserted into the hollow hole 172 of the core member 170 of the roll-shaped recording paper 82.
The second projections 166 of the 48 and 158 are positioned (see also FIG. 7), and thereafter, the elastic deformation of the support member 148 by the operation unit 154 is released. Thus, as shown in FIGS. 5 and 7, the second protrusions 166 of the support members 148 and 158 are formed.
Is inserted into the core member 170, the roll-shaped recording paper 82 is supported by the second protrusions 166 of the pair of support members 148, 158, and is rotatably held about the center axis 167 of the second protrusion 166 as the rotation axis. You. In such a holding state, the interval between the first protrusions 164 of the support members 148 and 158 is set to be slightly smaller than the length of the core member 170.
Due to the elastic action of the support members 148 and 158, the leading end surface of the first protrusion 164 is pressed against the end surface of the core member 170 of the roll-shaped recording paper 82, and the roll-shaped recording paper 82 is rotated when the recording paper 100 is pulled out. The braking force is applied to the movement,
The loosening of the pulled out recording paper 100 is prevented. In this embodiment, the first protrusion 1 of the support members 148 and 158 is used.
64 functions as braking force applying means, and
Acts on the second core member 170. Although the recording paper 100 of the roll-shaped recording paper 82 is reduced by use, the diameter of the core member 170 does not change.
A constant braking force is applied substantially irrespective of the use condition of the vehicle. If the braking force does not change significantly depending on the use condition of the recording paper 100, the distal end surface of the first protrusion 166 may be pressed against the core member 170 and the end surface of the recording paper 100.

In this embodiment, the support members 148, 1 are provided in order to facilitate the attachment and detachment of the roll-shaped recording paper 82.
58, a first inclined portion 166a
And a second inclined portion 166b. As shown in FIG. 7, the first inclined portion 166a is
When the recording paper 82 is in the closed position, it extends almost inwardly and inclines and moves the core member roll-shaped recording paper 82 along the first inclined portion 166 a of each of the second protrusions 166. The support members 148 and 158 can be elastically deformed outward, so that the roll-shaped recording paper 82 can be easily mounted on the second protrusion 166. Also, the second inclined portion 166b is inclined downward and extends substantially inward when the opening / closing cover 32 is at the closed position, and by using the second inclined portion 166b, the roll-shaped recording paper is formed. 82 (the core member 170 when the recording paper 100 runs out) can be easily removed from between the second protrusions 166. In this embodiment, the first inclined portion 166a extends beyond the rotation axis 167 and is formed larger than the second inclined portion 166b in order to give priority to the ease of mounting the roll-shaped recording paper 82. The roll-shaped recording paper 82 (or the core member 170) can be removed by pushing the operation portion 154 of the support member 148 outward to increase the distance between the support members 148 and 158.

Thereafter, as can be understood from FIG. 3, the leading end of the recording paper 100 is pulled from the roll-shaped recording paper 82 and led out from the discharge port 98 through the second transport path 80. To turn to the closed position. The print head 74 and the platen roller 76 are configured so that the pressure contact state can be released.
When the recording paper 1 is inserted between the print head 74 and the platen roller 76, the pressing state is released.
00 is inserted between them. In this recording device,
Since the center of rotation of the opening / closing cover 32 substantially coincides with the center of rotation of the roll-shaped recording paper 82, even if the opening / closing cover 32 is swung from the open position to the closed position or in the opposite direction, the roll-shaped The moment force acting on the opening / closing cover 32 of the recording paper 82 is substantially zero (zero), and the roll-shaped recording paper 82 only rotates about the turning axis of the opening / closing cover 32. Therefore, the opening / closing cover 32 can be smoothly turned regardless of the turning angle, and the turning moment of the opening / closing cover 32 at the time of opening / closing does not largely change, and safety at the time of opening / closing operation can be secured. .

In the present embodiment, the slack of the roll-shaped recording paper 82 can be eliminated by the turning movement of the opening / closing cover 32 in the closing direction. Referring mainly to FIG. 9, the roll-shaped recording paper 82 is moved by the action of the braking force applying means provided on the opening / closing cover 32.
5 is prevented from rotating freely relative to
), The roll-shaped recording paper 82 is turned around the turning axis integrally with the turning movement of the opening / closing cover 32. When the roll-shaped recording paper 82 is rotated about the above-described rotation axis, the portion P of the roll-shaped recording paper 82 when the opening / closing cover 32 is in the closed position (the portion where the recording paper 100 is pulled out) (FIG. 9). 9 (a), when the cover 32 is turned to the closed position, it moves to the position shown in FIG. 9B, and the roll-shaped recording paper 82 held by the cover 32 is pulled out of the recording paper 100. Is rotated in the rewinding direction. Accordingly, the recording paper 100 loosened between the roll-shaped recording paper 82 and the second printing means 72 (the print head 74 and the platen roller 76) is moved by the above-described movement of the roll-shaped recording paper 82. And the slack of the recording paper 100 is eliminated. In particular, in this embodiment, the opening / closing cover 32
Rotation axis 124 of the roll-shaped recording paper 82 and the rotation axis 16
7, the roll-shaped recording paper 82 is reliably moved in the winding direction by the turning movement of the opening / closing cover 32 in the closing position direction, and the amount of movement is also the opening position and closing position of the opening / closing cover 32. It corresponds to the turning angle between
Therefore, the loosened recording paper 100 can be rewound on the roll-shaped recording paper 82.

In this recording apparatus, the nip force of the recording paper 100 by the print head 74 of the second printing means 72 and the platen roller 76 is set to be larger than the braking force applied by the braking force applying means. Have been.
By setting the braking force in this manner, the recording paper 10
When the slack amount of the recording paper 100 is small, the roll-shaped recording paper 82 is moved relative to the opening / closing cover 32 about the rotation axis 167 by the arrow 180 when the slack amount of the recording paper 100 is eliminated.
(FIG. 9 (b)), the recording paper 100 pulled out from the roll-shaped recording paper 82 does not exert a large tensile force, and the recording paper 100 is connected to the print head 74 and the platen. The nip state with the roller 76 is maintained.

Although the embodiment of the recording apparatus according to the present invention has been described above, the present invention is not limited to such an embodiment, and does not depart from the scope of the present invention.
Various variations and modifications are possible.

For example, in the illustrated embodiment, a pair of support members 148, 158 are attached to the opening / closing cover 32, and the recording paper support portions 152, 162 are attached to the support members 148, 158.
Are provided, but instead of this, the support members 148, 15
8, one or both of the recording paper support portions 152, 1
62, one or both of the side walls 116,
It is also possible to provide it directly on the inner surface of 118.

For example, in the illustrated embodiment, the present invention is applied to a recording apparatus provided with a first printing means 50 for printing on the cut sheet 12 and a second printing means 72 for printing on the roll-shaped recording paper 82. As described above, the present invention can naturally be applied to a recording apparatus having only a printing unit for performing printing on the roll-shaped recording paper 82. Examples of such a recording apparatus include a facsimile machine and a receipt using a roll-shaped recording paper. There is a printer or the like that creates such information.

[0035]

According to the recording apparatus of the first aspect of the present invention,
Since the center of rotation of the opening / closing cover, which can be swung between the closed position and the open position, substantially coincides with the center of rotation of the roll-shaped recording paper supported by the opening / closing cover, the opening / closing cover is closed to the open position. Even when the recording paper is turned between the positions, the roll-shaped recording paper does not substantially act as a load for this turning movement, and the opening and closing cover can be smoothly opened and closed.

According to the recording apparatus of the second aspect of the present invention, since the opening / closing cover is provided with the guide rib for guiding the roll-shaped recording paper out of the apparatus main body, the roll discharged from the discharge opening is provided. The leading end of the recording paper is reliably prevented from entering the gap between the apparatus main body and the opening / closing cover.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a recording apparatus according to the present invention as viewed from the front side.

FIG. 2 is a perspective view of the recording apparatus of FIG. 1 as viewed from the back side.

FIG. 3 is a cross-sectional view illustrating the outline of the configuration of the recording apparatus in FIG.

FIG. 4 is a perspective view of the recording apparatus of FIG. 1 with the opening / closing cover positioned at an open position as viewed from the front side.

FIG. 5 is a sectional view showing an opening / closing cover and its vicinity in the recording apparatus of FIG. 1;

FIG. 6 is a simplified explanatory diagram for explaining an opening / closing operation of an opening / closing cover in the recording apparatus of FIG. 1;

FIG. 7 is an enlarged cross-sectional view showing a recording paper supporting portion and its vicinity in the opening / closing cover of FIG.

FIG. 8 is a partially enlarged cross-sectional view for explaining an operation of attaching the opening / closing cover to the upper housing in the recording apparatus of FIG. 1;

FIGS. 9A and 9B are simplified explanatory diagrams for explaining the rewinding of the recording paper by turning the opening / closing cover in the closing direction, respectively.

[Explanation of symbols]

 2 Apparatus main body 4 Lower housing 6 Upper housing 8 Table 12 Cut sheet 32 Open / close cover 50 First printing unit 70 First transport path 72 Second printing unit 74 Print head 76 Platen roller 80 Second transport path 82 Roll Recording paper 100 Recording paper 124 Revolving axis 134 Guide rib 148, 158 Support member 152, 162 Recording paper support 164 First protrusion 166 Second protrusion 167 Rotation axis 170 Core member

Claims (2)

[Claims] 1. An apparatus main body, an opening / closing cover mounted on the apparatus main body so as to be pivotable between an open position and a closed position about a pivot axis, a transport path provided in the apparatus main body, and the transport A recording apparatus comprising: a roll-shaped recording paper conveyed through a path; and a recording unit for recording information on the recording paper conveyed through the conveyance path, wherein the roll-shaped recording paper is substantially aligned with the turning axis. The recording apparatus is supported by the cover to be rotatable about a rotation axis extending in an upper parallel direction, and the turning axis of the cover is substantially coincident with the rotation axis of the recording paper. apparatus. 2. A discharge opening for discharging the roll-shaped recording paper conveyed through the conveyance path, wherein the opening / closing cover has:
2. The recording apparatus according to claim 1, further comprising a guide rib for guiding the roll-shaped recording paper discharged through the discharge opening to the outside of the apparatus main body.