JPH1142821A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer capable of being used in a usual arranging state wherein the bottom surface of a main body case is placed on the surface of a table and a wall type arranging state wherein the bottom surface of the main body case is opposed to a wall surface and capable of supporting a paper core without adding a new part in a case altering the arranging states. SOLUTION: When a printer arranging state is altered between a usual arranging state wherein the bottom surface of a main body case 1 is placed on the surface of a table and a wall type arranging state wherein the bottom surface of the main body case 1 is opposed to a wall surface, the fitting state of the attaching part of a core holder 7 and the attaching direction fixing part of the main body case 1 is altered and the attaching state of the core holder 7 to the main body case 1 is altered to a state wherein a support recessed part 7C is upwardly opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a printer using roll paper.

[0002]

2. Description of the Related Art Conventionally, various types of roll paper support mechanisms have been employed in printers using roll paper.
As one example, a mechanism is known in which a core holder having a substantially semi-cylindrical supporting recess is provided in a main body case, and a paper core to which roll paper is attached is dropped from above into the supporting recess to support the core. This roll paper support mechanism has a simple structure, and the work of setting the roll paper in a supported state is also easy.

[0003]

In the printer provided with the above-mentioned core holder, only the use state in which the bottom surface of the main body case of the printer is placed on the table surface is assumed. Therefore, the core holder is fixed to the main body case, and the support concave portion of the core holder is opened in a direction opposite to the bottom surface of the main body case.

Incidentally, if the printer is installed with the bottom surface of the main body case placed on the table surface, a large installation space is required. Therefore, there is a demand to reduce the installation space of the printer, for example, to use the printer in a wall-mounted installation state in which the bottom surface of the main body case is parallel to the wall surface. However, if the printer provided with the core holder having the above-described structure is used as it is in a wall-mounted state, the support recesses are opened horizontally, and the paper cores supported in the support recesses roll from the support recesses. Would.

Therefore, the present invention can be used in a normal installation state in which the bottom surface of the main body case is placed on a table surface, and can be used in a wall-mounted installation state in which the bottom surface of the main body case faces the wall surface. Moreover, it is an object of the present invention to provide a printer that does not require the addition of a new component for supporting a paper core when used in a wall-mounted installation state.

[0006]

According to a first aspect of the present invention, there is provided a printer in which a roll paper attached to a paper core is stored in a main body case, and the roll paper pulled out of the roll state is subjected to a predetermined operation by a print head. In a printer for printing items, a core holder having a substantially semi-cylindrical supporting recess for supporting the paper core dropped from above, and a core holder provided in the core holder so that the orientation of the supporting recess can be changed freely. A mounting portion that is attached to the main body case; and a mounting direction fixing portion provided on the main body case that is fitted to the mounting portion and fixes the core holder with the support recess oriented in an arbitrary direction. Therefore, when changing the installation state of the printer between a normal installation state in which the bottom surface of the main body case is placed on the table surface and a wall-mounted installation state in which the bottom surface of the main body case faces the wall surface, By changing the fitting state between the mounting portion and the mounting direction fixing portion, the mounting state of the core holder to the main body case is changed to a state in which the support recess is opened upward. Thus, even when the printer is changed to any installation state, the paper core supported by the support recess does not roll off from inside the support recess.

[0007]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the overall structure of the printer. This printer has a main body case 1 and a lid case 2, and the lid case 2 is rotatably connected to the main body case 1 with a support shaft 3 as a fulcrum between a position where the main case 1 is closed and an open position. ing.

In the main body case 1, a paper core 5 on which a roll paper 4 is attached is housed. The paper core 5 includes a shaft portion 5a into which the paper tube of the roll paper 4 is fitted, a fixed side plate 5b fixed to one end of the shaft portion 5a, and a shaft portion 5a.
And a movable side plate 5c attached slidably along the shaft portion 5a and fixed at an arbitrary position along the other end.

The main body case 1 includes the main body case 1
A pair of side plates 6 are provided on both sides in the width direction of the roll paper 4 stored therein, and a core holder 7 for supporting the paper core 5 is attached to these side plates 6. . These core holders 7 include a gutter-shaped portion 7a formed in a gutter shape and a length direction of the gutter-shaped portion 7a (FIG. 3).
Mounting plate 7 fixed to one end side in the direction of arrow A in FIG.
b. A substantially semi-cylindrical support concave portion 7c for supporting the shaft portion 5a is formed on the inner peripheral surface of the gutter portion 7a and the mounting plate portion 7b. On the outer peripheral surface of the gutter-like portion 7a, the direction of the support concave portion 7c can be freely changed.
A mounting portion 7d in the shape of a rectangular tube for mounting the device is formed. The mounting plate portion 7b is formed with a round hole 9 through which a screw 8 for screwing the core holder 7 to the side plate 6 is inserted.

At the edge of the side plate 6, there is formed a mounting orientation fixing portion 6a which is fitted with the mounting portion 7d to fix the core holder 7 with the support recess 7c oriented in an arbitrary direction. . The side plate 6 has the core holder 7
There are formed three screw holes 10a, 10b, 10c into which the screws 8 for screwing the screws to the side plate 6 are selectively screwed.

The cover case 2 is provided with a print head 11 for printing predetermined items on the roll paper 4 pulled out of the roll state. In addition, the lid case 2
A bent piece 12 bent inward is formed at a position facing one of the core holders 7 when the lid case 2 is closed.

Here, the paper core 5 and the bent piece 12
Will be described. FIG. 5 shows a state in which the paper core 5 is supported in the support recess 7c in the correct direction, and FIG.
This shows a state in which the paper core 5 is supported by the support recess 7c in a left-right opposite direction. When the paper core 5 is supported in the correct direction, even when the movable side plate 5c is slid to the position of the maximum width of the roll paper 4, the folded piece 12 does not come into contact with the movable side plate 5c when the lid case 2 is closed. If the cover case 2 is to be closed when the paper core 5 is supported upside down, the bent piece 12
Abuts on the outer peripheral portion of the fixed side plate 5b, and the lid case 2 cannot be closed.

In such a configuration, FIG.
The case where the printer is used in a normal installation state in which the bottom surface of the main body case 1 is placed on the table surface is shown. The mounting of the core holder 7 to the side plate 6 in this state is performed by fitting the mounting portion 7d to the mounting direction fixing portion 6a of the side plate 6 and inserting it into the round hole 9, as shown in an enlarged view in FIG. This is performed by screwing the screw 8 into the screw hole 10c. As a result, the support recess 7c of the core holder 7 is opened upward, and after rotating the lid case 2 to the open position, the paper core 5 on which the roll paper 4 is attached is dropped into the support recess 7c from above. The supporting recess 7c supports the shaft 5a of the paper core 5.

FIG. 1B shows a case where the main body case 1 is changed to a wall-mounted type in which the bottom surface is opposed to a wall surface. In the case of such a change, the screw 8 is removed from the state shown in FIG. 4A, and the core holder 7 is rotated in the direction shown in FIG. 4C, so that the fitting projection 7c and the mounting direction fixing part 6a are connected. After fitting, the core holder 7 is fixed by screwing the screw 8 inserted into the round hole 9 into the screw hole 10a.

After the core holder 7 is rotated and fixed in the direction shown in FIG. 4C, when the printer is changed to a wall-mounted type as shown in FIG. 1B, the supporting recess 7c of the core holder 7 is raised. It is in a state of being opened in the direction. Therefore,
The paper core 5 to which the roll paper 4 is attached is dropped into the support recess 7c from above, and the shaft 5a of the paper core 5 is supported by the support recess 7c. Therefore, even if the printer is changed to a wall-mounted installation state, the paper core 5 does not roll down from the support recess 7c of the core holder 7, and the paper core 5 can be reliably supported.

In addition, when the printer is changed to a wall-mounted type, only the mounting direction of the core holder 7 is changed, and no additional components for supporting the paper core 5 are required. Do not add complexity or cost.

The fixing position of the core holder 7 can be changed to the position shown in FIG. If the core holder 7 is fixed at the position shown in FIG. 4B, when the printer is changed to a wall-mounted installation state, the support recess 7c is opened obliquely upward, and the paper core 5 is opened.
Mounting work to the supporting recess 7c becomes easy.

Next, it is correct that the paper core 5 is supported in the supporting recess 7c so that the paper core 5 is oriented as shown in FIG. By supporting the paper core 5 in such a correct orientation, when the cover case 2 is turned to the closed position, the bent piece 1
2 does not come into contact with the movable side plate 5c, and the lid case 2 is
Can be rotated to the closed position indicated by the two-dot chain line.
Then, printing of predetermined items on the roll paper 4 by the print head 11 can be performed at a correct position in the width direction of the roll paper 4.

On the other hand, when the paper core 5 is supported upside down as shown in FIG. 6, printing is performed by the print head 11 on the roll paper 4 stored in that direction. Cannot be printed at the correct position in the width direction. However, when the paper core 5 is supported in the opposite direction to the left and right as described above, when the lid case 2 is to be closed, as shown by a two-dot chain line in FIG. The lid case 2 cannot be closed by contacting the outer peripheral portion. Therefore, the operator who attempts to set the paper core 5 can know that the support direction of the paper core 5 is reversed, and starts printing while supporting the paper core 5 in the reverse direction, causing a printing failure state. Can be prevented.

[0020]

According to the printer of the first aspect of the present invention, the roll paper attached to the paper core is stored in the main body case, and the roll paper pulled out of the roll state is used by the print head to perform predetermined items. In a printer for printing, a core holder provided with a substantially semi-cylindrical supporting recess for supporting the paper core dropped from above, and a main body provided on the core holder and allowing the orientation of the supporting recess to be changed freely. The printer has a mounting portion to be attached to the case, and a mounting direction fixing portion provided in the main body case for fixing the core holder with the direction of the support concave portion oriented in an arbitrary direction by fitting with the mounting portion. The installation state is a normal installation state where the bottom of the main body case is placed on the table surface, and a wall-mounted installation state where the bottom surface of the main body case is opposed to the wall surface When the printer is changed between the mounting portions, the mounting state of the mounting portion and the mounting direction fixing portion is changed to change the mounting state of the core holder to the main body case so that the supporting recess is opened upward. In both the normal installation state and the wall-mounted installation state, the paper core supported by the support recesses can be prevented from rolling down from inside the support recesses and can be reliably supported. In addition, when the installation state of the printer is changed, it is not necessary to add a new part for supporting the paper core only by changing the mounting direction of the core holder, so that the structure becomes complicated and the cost increases. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG.
(B) shows a case where the printer is used in a normal installation state in which the bottom surface of the main body case is placed on the table surface, and (b) shows a case where the installation state is changed to a wall-mounting type in which the bottom surface of the main body case faces the wall surface.

FIG. 2 is a side view showing a mounting direction fixing portion formed on a side plate of a main body case.

FIG. 3 shows a core holder, wherein (a) is a side view,
(B) is a front view, (c) is a perspective view.

FIG. 4 is a side view showing a state where the mounting direction of the core holder is changed.

5A and 5B show a state in which the paper core is correctly mounted on the core holder, wherein FIG. 5A is a front view thereof, and FIG.
Is a side view thereof.

FIGS. 6A and 6B show a state in which the paper core is mounted on the core holder in a left-right opposite direction, and FIG.
(B) is a side view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 4 Roll paper 5 Paper core 6a Mounting direction fixing part 7 Core holder 7c Support concave part 7d Mounting part 11 Print head

Claims (1)

[Claims] In a printer for storing a roll paper attached to a paper core in a main body case and printing predetermined items on a roll paper drawn out of a roll state by a print head, the printer is dropped from above. A core holder having a substantially semi-cylindrical supporting recess for supporting the paper core,
An attachment portion provided on the core holder and attaching the core holder to the main body case so that the orientation of the support recess can be changed; and fitting the attachment portion so that the orientation of the support recess is oriented in an arbitrary direction. A printer having a mounting direction fixing portion provided on the main body case to be fixed.