JP2526010Y2 - Electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electronic device such as a printer.

[Prior Art] FIG. 5 shows a schematic configuration of a printer which is a typical example of electronic equipment.

In the figure, reference numeral 1 denotes an apparatus main body (main body frame of a printer). A printing unit 10 (platen)
11, a thermal head 12), a paper feed unit 20 (paper feed cassette 21, paper feed roller 22), a paper feed unit 30, and a ribbon feed unit 40 are provided.

Here, the sheet feeding unit 30 is a unit that conveys the sheet P taken out from the sheet feeding unit 20 to the printing unit 10 or the like. Specifically, the paper feed unit 30 includes a platen 11, feed rollers 31,
32, 33 and paper feed motor 34, etc.
When the paper feed motor 34 is driven to rotate the platen 11 and the feed roller 32 in a predetermined direction, the paper P taken out from the paper supply unit 20 is printed by the printing unit via the platen 11, the feed roller 31, and the feed rollers 32, 33. After passing through 10, it is conveyed to a predetermined discharge unit.

On the other hand, the ribbon feeding section 40 is a means for supplying the ribbon 45 to the printing section 10 and includes guide rollers 41, 42, a ribbon winding shaft 43, and a ribbon motor 44 for rotating the ribbon winding shaft 43. It is configured.

By the way, the platen 11, the feed rollers 31, 3
The rotating shafts of 2, 33 and guide rollers 41, 42 are shown in Fig. 6
By using the supporting method shown in FIG. 10, it is arranged in parallel with the main body frame 1 with a predetermined positional relationship.

Here, the supporting method shown in FIG. 9 is such that individual rotating shafts (for example, feed rollers 31) are attached to the main body frame 1 using the sintered metal 61 or the like. The supporting method shown in FIGS. 7 and 8 is a method in which a pair of rotating shafts (for example, the platen 11 and the feed roller 31) are pressed against each other by using the elastic force of the springs 62 and 63 and attached to the main body frame 1. is there. Further, the supporting method shown in FIG. 9 is a method frequently used for supporting a rotating shaft such as the platen 11 which requires a high degree of rotational accuracy, and a ball bearing 64 or the like is used to prevent the rotating shaft from rattling. To be attached to the main body 1. Further, in the supporting method shown in FIG. 10, the rotating shaft is mounted using a bearing 66 which can be inserted and supported in the notch 65 of the main body frame 1.

However, to print using the printer described above,
The printing unit is driven by driving the paper feed motor 34 and the ribbon motor 44.
The paper P and the ribbon 45 are supplied to the printer 10 and the thermal head 12 of the printing unit 10 is driven to perform a predetermined printing operation.

[Problem to be Solved by the Invention] In the printer having the above-described configuration, if all the rotation axes are not arranged in parallel, the paper P may be skewed or the ribbon 45 may be skewed and smoothly. May be unable to print. Therefore, it is necessary to assemble the individual rotating shafts to the main body frame 1 while adjusting the relative positions using the supporting method shown in FIGS. 6 to 10 so that all the rotating shafts are arranged in parallel. However, such an assembling operation is troublesome, and it is difficult to arrange all the rotating shafts completely in parallel with a predetermined positional relationship using any of the supporting methods.

The present invention has been made in view of the above circumstances, and has as its object to provide an electronic device in which a plurality of rotating shafts can be arranged in parallel with a predetermined positional relationship in a device main body with a simple configuration.

Means for Solving the Problems According to the present invention, there is provided an electronic device having a plurality of rotating shafts disposed in parallel with a predetermined position of a device main body with a predetermined positional relationship, wherein the electronic device can be disposed so as to face the device main body. At least two bearing members provided with a plurality of bearing portions in a predetermined positional relationship corresponding to the respective rotating shafts are provided, and both end portions of the respective rotating shafts are rotatably supported by the bearing members, and the respective rotating shafts are It is characterized by being arranged in parallel at a predetermined position on the device body.

[Operation] According to the present invention, a plurality of rotating shafts are arranged in a predetermined positional relationship with the main body of the device by disposing the bearing members opposite each other and supporting each end of each rotating shaft on each bearing portion of the bearing member. They are arranged in parallel. At this time, since it is not necessary to separately calculate the parallelism of each rotating shaft, the assembling work of the rotating shafts is facilitated.
Also, since it is not necessary to prepare a bearing for each rotating shaft, the configuration of the electronic device is simplified.

Thereby, a plurality of rotating shafts can be arranged in parallel with the apparatus main body with a predetermined positional relationship with a simple configuration.

[Embodiment] An embodiment of the present invention will be described with reference to the drawings.

The present invention is applied to a printer which is a typical example of electronic equipment.

As shown in FIG. 1, the printer includes a printing unit 10, a paper feeding unit (20), a paper feeding unit 30, a ribbon feeding unit 40, and a bearing member 51 which is a feature of the printer.

The same components as those shown in FIG. 5 are denoted by the same reference numerals, and description thereof will be omitted or simplified. FIG. 1 shows only one bearing member 51.

Here, the bearing member 51 includes a rotating shaft (a platen 11, feed rollers 31, 32, 33 and guide rollers 41, 4 in this embodiment).
2) is a means for arranging 2) in parallel with a main body frame 1 as a device main body with a predetermined positional relationship, and includes at least two (two in this embodiment). In particular,
As shown in FIGS. 2 and 3, the bearing member 51 includes a main body 52 having an asymmetric outer shape, and bearing portions 53, 54 provided on the main body 52 with a predetermined positional relationship corresponding to the respective rotating shafts. ,
55, 56, 57 and 58. Here, bearing part 5
3 is provided corresponding to the platen 11, and the bearings 54,
55 and 56 are provided corresponding to the respective feed rollers 31, 32 and 33. Further, the bearing portions 57, 58 are provided with the respective guide rollers 41, 42.
Is provided in correspondence with.

Further, as shown in FIG. 3, these bearing portions 53, 54, 55, 56, 57, 58 protrude from both side surfaces 52a, 52b of the main body 52 by a predetermined length. As a result, the two bearing members 51 are connected to the bearing portions (53, 54, 55, 56, 57, 58) by the mounting holes (3, 4, 5, 6, 7, 8) formed in the main body frame 1. Can be easily and accurately arranged in parallel at a predetermined position of the main body frame 1. At this time, the two bearing members 51 are placed on the outer surface of the main body frame 1 with the corresponding bearing portions facing each other.
It can be installed in 1a, and the handleability can be improved. That is, each bearing portion (53, 54, 55, 56, 5
7, 58) are both side surfaces 52a, 52b of the main body 52 as shown in FIG.
Because it is more protruding, one of the bearing members 51 shown in FIG.
Is disposed with its side surface 52b in contact with the outer surface 1a of the main body frame 1, and the other bearing member (51) is attached to the side surface (52).
a) can be arranged in a state of being in contact with the outer surface (1a) of the main body frame.

 Next, the operation will be described.

The bearing members 51, 51 are arranged in parallel with the main body frame 1, and the respective bearing portions of the bearing members 51, 51 support both ends of each rotating shaft, so that the plurality of rotating shafts are positioned at predetermined positions on the main body frame 1. They are arranged in a parallel relationship. At this time, since it is not necessary to individually determine the parallelism of each rotating shaft, the rotating shaft can be quickly and easily assembled to the main body frame 1.

Thus, according to this embodiment, a plurality of bearing portions (53, 54,
55, 56, 57, 58) are provided with two bearing members 51, 51 provided in a predetermined positional relationship, and both ends of each rotating shaft are rotatably supported by the two bearing members 51, 51, and the respective rotating shafts are connected. Since the structure is arranged in parallel at a predetermined position on the main body frame 1, the assembling work of the rotating shafts is facilitated, and it is not necessary to prepare a bearing for each rotating shaft. As a result, each rotating shaft can be arranged in parallel with the main body frame 1 with a predetermined positional relationship with a simple configuration, and smooth printing is assured. Further, the size and cost of the printer can be reduced.

In the above embodiment, two bearing members 51 are provided.
It is also possible to provide three or more arbitrary numbers.

In addition, as shown in FIG. 4, a part of the main body 52 is cut out to form a spring part 59 so that the bearing part of the bearing member 51 can elastically support the rotating shaft. The shaft may be formed so that it can be elastically supported.

Further, the present invention may be applied to an electronic device (for example, a copying machine) other than a printer.

[Effects of the Invention] According to the present invention, at least two bearing members, each of which can be disposed to face the device main body and in which a plurality of bearing portions are provided in a predetermined positional relationship corresponding to the respective rotating shafts, are provided. In this configuration, both ends of each rotating shaft are rotatably supported and the respective rotating shafts are arranged in parallel at predetermined positions of the device main body. Can be arranged.

[Brief description of the drawings]

1 to 4 are views showing one embodiment of the present invention, FIG. 1 is an exploded perspective view showing a main part, FIG. 2 is a front view of a bearing member,
FIG. 3 is a side view of the bearing member, and FIG. 4 is a view showing a modified example of the bearing member. FIG. 5 is a diagram showing a schematic configuration of a conventional printer. 6 to 10 are views showing a conventional method of supporting a rotating shaft. 1 ... body frame (device body), 11 ... platen (rotary shaft), 31, 32, 33 ... feed roller (rotary shaft), 41, 4
2 …… Guide roller (rotary shaft), 51 …… Bearing member, 53-5
8 ... Bearing part of the bearing member.

Claims (1)

(57) [Scope of request for utility model registration] 1. An electronic device having a plurality of rotating shafts disposed in parallel with a predetermined position of a device main body with a predetermined positional relationship, wherein the plurality of rotating shafts can be disposed opposite to the device main body and correspond to the respective rotating shafts. At least two bearing members provided with a predetermined positional relationship with each other, and both end portions of each of the rotating shafts are rotatably supported by the bearing members, and each of the rotating shafts is arranged in parallel to a predetermined position of the device main body. Electronic equipment characterized by having been installed.