JP4505937B2 - Printer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printer that performs printing on roll paper, for example.
[0002]
[Prior art]
In general, in this type of printer, a roll paper holder for accommodating roll paper is disposed with the opening portion on the upper side. Therefore, a main board for controlling the printer mechanism itself is used as, for example, roll paper. It is arranged between the bottom lid provided on the bottom part of the holder and the bottom part of the printer.
[0003]
On this main board, a so-called DIP switch for changing the setting of the printing speed and character font is provided in a state covered with a protective cover.
[0004]
[Problems to be solved by the invention]
By the way, in such a conventional printer, when changing the setting of the DIP switch, the bottom cover is opened with the printer turned over, or the DIP switch provided in a part of the printer case is protected. This was done by opening the cover, but there was a problem that this work was troublesome.
[0005]
The present invention has been made to solve the above-described problems of the prior art, and its purpose is to set the setting switch while protecting the setting switch for setting a predetermined condition. It is an object of the present invention to provide a printer that can be easily performed.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a printer main body configured to perform printing on a recording paper drawn from roll paper, and a roll disposed inside the printer main body and capable of accommodating the roll paper. A paper holder, a holder cover provided in the printer main body so as to be openable and closable so as to cover the roll paper holder, and a switch unit for setting a predetermined condition are provided at a predetermined position in a space portion in the printer main body. And a setting switch provided in a state where only the switch portion is exposed.
[0007]
According to the present invention, since the setting switch is provided in the printer main body with only the switch part exposed, the switch part of the setting switch can be easily operated simply by opening the holder cover. Further, in the present invention, if the setting switch is arranged at a position removed from the roll paper holder, for example, when replacing the roll paper, the setting switch can be protected without contacting the roll paper.
[0008]
Further, according to the present invention, a switch case having a predetermined opening is provided between the printer main body and the roll paper holder, and the switch case has the setting switch in a state where the opening faces the switch part of the setting switch. It is also effective to be configured to cover.
[0009]
According to the present invention, since the setting switch is covered with the switch case, the setting switch is more effectively protected from adhesion of dust or the like, for example, and can be operated from the opening of the switch case.
[0010]
Further, according to the present invention, a concave portion that is recessed toward the printer main body is formed in a peripheral portion of the opening of the switch case, and a portion of the roll paper holder that faces the printer main body is opposed to the concave portion. It is also effective that a predetermined notch is formed.
[0011]
According to the present invention, since the switch case is separated from the roll paper holder by a considerable amount due to the formation of the recess, a space for operating the inside of the roll paper holder through the notch can be secured. It becomes easier to set.
[0012]
Furthermore, the present invention is also effective in that the switch case is provided with a switch board having a predetermined circuit by electrically connecting a display unit for performing a predetermined display and a setting switch.
[0013]
According to the present invention, for example, if the display unit is displayed based on information set by the setting switch, the setting switch can be set while confirming the setting contents. Can be prevented.
[0014]
On the other hand, the present invention is characterized in that the switch case is formed so as to extend to a portion of the holder cover on the opening / closing support shaft side to constitute a hinge of the holder cover.
[0015]
According to the present invention, the strength of the hinge of the holder cover can be improved using the switch case.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a printer according to the present invention will be described in detail with reference to the drawings.
[0017]
FIG. 1 is a perspective view illustrating a schematic configuration in a state where a holder cover is closed with respect to the appearance of the printer of the present embodiment. FIG. 2 is a perspective view illustrating a schematic configuration of the external appearance of the printer with the holder cover opened. FIG. 3 is a side view showing the internal configuration of the printer with the holder cover closed. FIG. 4 is a side view showing the internal configuration of the printer with the holder cover open. FIG. 5A is a perspective view showing a schematic configuration of the holder cover of the present embodiment, FIG. 5B is a perspective view showing a schematic configuration of the roll paper holder of the present embodiment, and FIG. These are perspective views which show schematic structure of the hinge part of the holder cover of this Embodiment.
[0018]
As shown in FIGS. 1 and 2, the printer 1 of the present embodiment has a main body case (a part of the printer main body) 2 having an opening, and a holder cover 3 having a size for closing the opening. ing. The main body case 2 and the holder cover 3 are each formed in a shape that is integrally formed into a substantially box shape using resin. That is, the main body case 2 is formed in a substantially rectangular parallelepiped shape from a rectangular bottom portion and a wall portion provided so as to surround the bottom portion, while the holder cover 3 is formed in a rectangular flat plate shape.
[0019]
Here, the printer 1 of the present embodiment can select either an installation mode of portrait orientation or landscape orientation, and the printer 1 of FIG. 1 is shown in a landscape orientation. The bottom portion of the main body case 2 described above is a first bottom portion 2a when the printer 1 is placed horizontally, and in this state, of the wall portion of the main body case 2, the front side of the main body case 2 (FIG. 1). The wall portion on the diagonally lower right side is the front portion 2b, and the wall portion on the rear side of the main body case 2 is the second bottom portion 2c when the printer 1 is placed vertically. Further, in such a state, the right side wall portion (the obliquely upper right side in FIG. 1) of the main body case 2 is a first side wall portion 2d, and the left side wall portion of the main body case 2 is a second side wall portion 2e. . In the following description, the vertical direction and the front-rear direction of the printer 1 are defined with reference to the case where the first bottom 2a of the main body case 2 is on the lower side.
[0020]
As shown in FIG. 2 or 4, a roll paper holder 4 that can accommodate roll paper (not shown) is provided inside the main body case 2. As shown in FIG. 2 or FIG. 5B, the roll paper holder 4 has a substantially box shape from a curved bottom 4a and a pair of flat side portions (4b, 4c) sandwiching the bottom 4a. Is formed. Further, the roll paper holder 4 is arranged so that the side portions thereof have a predetermined distance from the first side wall portion 2d and the second side wall portion 2e of the main body case 2, respectively. Here, of the side portions of the roll paper holder 4, the side portion facing the first side wall portion 2 d of the main body case 2 is referred to as a first side portion 4 b, and the second side wall portion 2 e of the main body case 2 is used. The side part on the opposite side is referred to as a second side part 4c.
[0021]
As shown in FIG. 2, a first arm member 5 is provided between the first side wall 2 d of the main body case 2 and the first side 4 b of the roll paper holder 4. The first arm member 5 is formed to extend from the middle part of the first side wall 2d of the main body case 2 to the second bottom 2c side of the main body case 2. A second arm member 6 is provided between the second side wall 2 e of the main body case 2 and the second side 4 c of the roll paper holder 4. The second arm member 6 is formed so as to extend from the middle part of the second side wall 2 e of the main body case 2 to the second bottom 2 c side of the main body case 2.
[0022]
As shown in FIG. 5C, among the end portions of the first arm member 5 and the second arm member 6, the end portions on the second bottom 2c side of the main body case 2 are respectively provided with One bearing portion (only one side is shown) 7 is formed.
[0023]
On the other hand, as shown in FIG. 5A, second bearing portions 8 are respectively formed at both end portions of the main body case 2 on the second bottom portion 2 c side in the peripheral portion of the holder cover 3. . Further, as shown in FIG. 5B, of the first side portion 4b and the second side portion 4c of the roll paper holder 4, each end portion on the second bottom portion 2c side of the main body case 2 is provided on each end portion. A third bearing portion 9 is formed.
[0024]
As shown in FIGS. 5B and 5C, the second bearing portion 8 of the holder cover 3 has the first arm member 5 and the second arm member 6 on both sides thereof. Together with the bearing portion 7 and the third bearing portion 9 of the roll paper holder 4, the hinge 11 of the holder cover 3 is configured by being penetrated by a pin 10 for a support shaft on the same axis. Thereby, the holder cover 3 is supported by the main body case 2 so as to be freely opened and closed.
[0025]
On the other hand, as shown in FIG. 2 or 4, the second bottom portion 2 c of the main body case 2 is formed with a curved surface portion 2 c 1 having a predetermined curvature at the tip portion. Thereby, when the holder cover is opened and closed, the rear end portion 3a does not come into contact with the front end portion 2c1 of the second bottom portion 2c of the main body case 2.
[0026]
As shown in FIG. 2, a switch case 21 is formed on the main body portion of the first arm member 5 excluding the first bearing portion.
[0027]
The switch case 21 includes a rectangular parallelepiped first switch case portion 22 and a box-like second switch case portion 23 thinner than the first switch case portion 22. The first switch case portion 22 is disposed so that the upper surface thereof is deepened by a predetermined depth from the upper end edge portion of the first side wall portion 2d of the main body case 2, and the first side wall of the main body case 2 is also disposed. The portion 2d and the first side portion 4b of the roll paper holder 4 are disposed so as to be substantially filled. On the other hand, the second switch case portion 23 is disposed so as to be retracted to the first side wall portion 2d side of the main body case 2 from the first switch case portion 22 and connected to the first switch case 22 in a stepped shape. ing. Thereby, a predetermined space (concave portion) is formed between the second switch case portion 23 and the first side portion 4 b of the roll paper holder 4.
[0028]
In the switch case 21, a switch board 24 having a predetermined circuit is provided across the first switch case portion 22 and the second switch case portion 23. The switch board 24 includes a push button type feed switch 25 for feeding a recording medium, a plurality of LED lamps (display units) 26 for performing predetermined display, and a DIP switch (for performing predetermined setting). Setting switch) 27 and the like are mounted.
[0029]
The feed switch 25 is arranged so that only the button portion 25 a is exposed from the upper surface of the first switch case portion 22. As shown in FIG. 5A, the holder cover 3 is provided with a push button 28 for operating the feed switch 25 so as to be in contact with the button portion 25a of the feed switch 25 on the switch board 24 side. ing.
[0030]
As shown in FIG. 2, the LED lamps 26 are arranged on the upper surface of the second switch case portion 23. As shown in FIG. 5A, the holder cover 3 is provided with a display hole 29 for the LED lamp 26 so as to face the LED lamp 26 on the switch board 24 side.
[0031]
As shown in FIG. 2 or FIG. 4, the DIP switch 27 is disposed inside a side surface (hereinafter referred to as “operation side surface 23 a”) facing the roll paper holder 4 among the side surfaces of the second switch case 23. ing. On the other hand, a working hole (opening) 30 is provided in a portion of the operation side surface 23 a of the second switch case portion 23 facing the DIP switch 27 so that only the DIP switch 27 is exposed. Furthermore, a work notch 31 is provided in a portion of the first side 4 b of the roll paper holder 4 facing the work hole 30 of the second switch case part 23 so as to be considerably larger than the work hole 30. It has been.
[0032]
As shown in FIG. 3 or 4, a thermal head 41 that performs printing by a thermal method is provided at a portion between the front portion 2 b of the main body case 2 and the roll paper holder 4 in the inner portion of the main body case 2. Is provided. On the other hand, a platen roller 42 is rotatably provided at the tip of the holder cover 3. The platen roller 42 is arranged so as to be in contact with the thermal head 41 when the holder cover 3 is closed.
[0033]
As shown in FIG. 2 or FIG. 3, a platen gear 43 is fixed to one end of the platen roller 42. And this platen gear 43 is comprised so that the motive power of the platen motor 44 provided in the inside of the main body case 2 may be transmitted via the gear train which is not shown in figure.
[0034]
On the other hand, as shown in FIG. 3, a main board 45 having a predetermined circuit is provided in the vicinity of the first bottom 2 b of the main body case 2. The main board 45 is electrically connected to the switch board 24, the thermal head 41, the platen motor 44, and the like described above.
[0035]
The main board 45 changes the font size and print density related to printing performed by the thermal head 41 based on the signal set by the DIP switch 27 on the switch board 24 or rotates the platen motor 44. By changing the speed, the paper feed speed performed by the platen roller 42, that is, the printing speed is changed.
[0036]
In the present embodiment having such a configuration, when the roll paper is exchanged by opening the holder cover 3, the DIP switch 27 is covered with the switch case 21 at a place removed from the roll paper holder 4, When the roll paper is replaced, the DIP switch 27 can be prevented from colliding with the roll paper or the hand holding the roll paper, and the setting of the switch can be prevented from being changed unexpectedly. In addition, dust and the like can be prevented from adhering to the DIP switch 27.
[0037]
On the other hand, when changing the setting of the DIP switch 27, the work cover notch portion of the roll paper holder 4 is formed inside the roll paper holder 4 by opening the holder cover 3 and removing the roll paper from the roll paper holder 4. Only the DIP switch 27 is exposed through the work hole 30 of the switch case 21 and the switch case 21. Then, the operator inserts a finger into the work hole 30 of the switch case 21 from the roll paper holder 4 side and performs the setting operation of the DIP switch 27.
[0038]
As described above, according to the present embodiment, only the DIP switch 27 is exposed in the recessed portion in the main body case 2, and the second of the switch case 21 on the side where the working hole 30 is provided. In addition to separating the switch case 23 from the roll paper holder 4 by a considerable amount, a space for setting operation on the roll paper holder 4 side is secured, so that only the roll paper is removed by opening the holder cover 3 The DIP switch can be easily set.
[0039]
In particular, since the DIP switch 27 can be protected from dust and the like by the switch case 21, it is advantageous in that the protective cover used to protect the DIP switch 27 as in the prior art becomes unnecessary.
[0040]
Furthermore, according to the present embodiment, since the DIP switch 27 is disposed on the switch board 24 together with the LED lamp 26, for example, a predetermined LED lamp 26 is displayed based on a signal set by the DIP switch 27. Then, the setting of the DIP switch 27 can be performed while confirming the setting contents, so that it is possible to prevent an erroneous setting of the DIP switch 27.
[0041]
On the other hand, according to the present embodiment, the first arm member 5 including the switch case 21 is used to form the hinge 11 of the holder cover 3 together with the second arm member 6. It is advantageous in terms of strength as compared with the case where a hinge is formed from a part of the case 3 and a part of the holder cover 4, and the hinge 11 of the holder cover 3 is not restricted by various conditions in the resin design. It becomes possible to arrange | position in the vicinity of the edge of the rear-end part 3a of the cover 3. FIG.
[0042]
Therefore, in addition to the arrangement of the hinge 11, the shape of the holder cover 3 itself is flat, so that the holder cover 3 is substantially flush with the second bottom 2c of the main body case 2 when opened. Therefore, when the printer 1 is installed horizontally, the holder cover 3 can be prevented from protruding from the rear side, and when the printer 1 is installed vertically, By opening the holder cover 3, it is possible to prevent the body case 2 side from being inclined.
[0043]
The present invention is not limited to the above-described embodiment, and various changes can be made.
[0044]
For example, in the above embodiment, the switch case 21 that protects the DIP switch 27 is provided on the first arm member 5, but it can also be provided on the second arm member 6. Regardless of these, the location where the switch case 21 including the DIP switch 27 is arranged is not limited as long as it is a portion inside the main body case 2 and outside the roll paper holder 4.
[0045]
However, from the viewpoint of downsizing the printer 1, a sufficient space cannot be secured between the main body case 2 and the roll paper holder 4, so that the space in the roll paper holder 4 is used as in the above embodiment. Thus, it is preferable that the DIP switch 27 is set.
[0046]
In the above embodiment, only the DIP switch 27 is always exposed with the minimum necessary. However, in order to strengthen the protection of the DIP switch 27, the DIP switch 27 is not exposed when the roll paper is replaced. It can also be exposed only during the setting work of 27.
[0047]
For example, in order to achieve such an object, the opening / closing mechanism of the holder cover 3 can be changed in two stages according to whether the roll paper is replaced or when the setting of the DIP switch 27 is changed. If the shutter member is exposed to the DIP switch 27 only when the holder cover 3 is opened at the opening / closing angle for setting the DIP switch, the shutter member that moves with the opening / closing of the DIP switch 27 is exposed to dust or the like. Adhesion can be more effectively prevented.
[0048]
Further, in the above-described embodiment, the DIP switch 27 is used as a switch for setting various conditions relating to printing. However, the present invention is not limited to this, and includes a plurality of selectable switch sections. If so, the type of the switch is not limited.
[0049]
Furthermore, in the above-described embodiment, the printing method using the thermal head 41 is used. However, the present invention is not limited to this, and a printing method using a dot impact method or an inkjet method can also be used. However, it is preferable to use the thermal head 41 from the viewpoint of enabling the printer 1 to be installed either vertically or horizontally.
[0050]
【The invention's effect】
As described above, according to the present invention, only the setting switch (DIP switch) is exposed in the back portion of the printer main body (main body case), and the setting switch is simply opened by removing the roll paper. Can be easily set.
[0051]
Further, according to the present invention, setting switches can be set while confirming the setting contents by displaying on the display unit (LED lamp), so that it is possible to prevent erroneous setting of the setting switches.
[0052]
Furthermore, according to the present invention, the strength of the hinge of the holder cover can be improved using the switch case.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a schematic configuration in a state in which a holder cover is closed with respect to an appearance of a printer according to an embodiment.
FIG. 2 is a perspective view illustrating a schematic configuration in a state where a holder cover is opened with respect to the appearance of the printer.
FIG. 3 is a side view showing an internal configuration of the printer with a holder cover closed.
FIG. 4 is a side view showing an internal configuration of the printer with a holder cover opened.
FIG. 5A is a perspective view showing a schematic configuration of a holder cover according to the present embodiment.
(B): It is a perspective view which shows schematic structure of the roll paper holder of this Embodiment.
(C): It is a perspective view which shows schematic structure of the hinge part of the holder cover of this Embodiment.
[Explanation of symbols]
2 Main unit case (part of printer main unit)
3 Holder cover 4 Roll paper holder 11 Hinge 21 Switch case 24 Switch board 26 LED lamp (display unit)
27 DIP switch (setting switch)
30 Working hole (opening)
31 Notch for work

Claims (4)

A printer body configured to print on a recording paper drawn from roll paper;
A roll paper holder disposed inside the printer body and capable of accommodating roll paper;
A holder cover provided in the printer main body so as to be openable and closable so as to cover the roll paper holder;
A switch unit for setting a predetermined condition, and a setting switch provided in a state where only the switch unit is exposed at a predetermined position in a space portion in the printer body ,
A switch case having a predetermined opening is provided between the printer main body and the roll paper holder, and the switch case covers the setting switch with the opening facing the setting switch. A printer that is configured as described above . In the peripheral portion of the opening of the switch case, a concave portion is formed on the printer main body side, while the portion of the roll paper holder that faces the printer main body in the portion that faces the printer main body, the printer of claim 1, wherein the predetermined notch is formed. The said switch case of claim 1 or 2, characterized in that the switch substrate having a predetermined circuit to electrically connect the setting switch and a display unit for performing predetermined display is provided Any one of the printers. The printer according to any one of claims 1 to 3 , wherein the switch case is formed so as to extend to a portion of the holder cover on a side of the opening / closing support shaft to constitute a hinge of the holder cover. .

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