JPH059195Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a base structure of a printer on which a printing section consisting of a printing mechanism section, a motherboard, etc. is mounted.

[Prior Art] Conventionally, in a printer using this type of base, a printing section 10 consisting of a printing mechanism section 11, a motherboard 12, etc. is attached to a printer base 40 using mounting screws 7, as shown in FIGS. 3 and 4, for example. The shield plate 43 was placed and fixed on the upper part, and a shield plate 43 was provided on the lower part. The printer base 40 has a structure made of plastic, for example.

In addition, in the printing mechanism section 11, 16 is a frame, 17 is a guide shaft, 18 is a carriage,
19 is a print head, 20 is a ribbon cassette, 21
indicates the platen. Also, 14 is a switch, 15
indicates a connector.

[Problems to be Solved] The conventional printer base 40 described above has sufficient strength due to the lattice-shaped protrusions 42 on the bottom plate 41, but it requires a large amount of plastic material. There was a problem that the production cost was high.

The present invention has been devised in view of the problems of the prior art described above, and it is an object of the present invention to provide a base structure for a printer that can reduce the amount of materials such as plastics used and reduce manufacturing costs.

[Means for solving the problem] Therefore, in the present invention, in the base structure of the printer on which the printing unit consisting of the printing mechanism unit, the motherboard, etc. is placed, a plurality of through holes are provided in the bottom plate of the base over almost the entire area. In addition, a configuration is adopted in which a thick portion is formed on the periphery of each through hole, which is thicker than the thickness of the base bottom plate, thereby attempting to achieve the above object.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2. Note that configurations similar to those of the conventional example are designated by the same reference numerals.

FIG. 1 is an exploded perspective view of the printer.
A printing unit 10 consisting of a motherboard 12 and the like is mounted and fixed, and a shield plate 30 is provided at the bottom.

The printer base 1 has side plates 3 erected on the periphery of a rectangular bottom plate 2, and is made of plastic in this embodiment.

Protrusions 4, 4 are formed in a grid pattern on the bottom plate 2, and the strength of the bottom plate 2 is increased by forming the protrusions 4. A circular through hole 5 is formed in each portion surrounded by the protrusion 4, and the through hole 5 is provided over almost the entire area of the bottom plate 2. However, the through hole 5 is not limited to a circular shape, but may be a square shape. By forming the through holes 5, 5 in this way, the amount of plastic material used when manufacturing the printer base 1 can be reduced. Further, a large amount of cooling air can be taken into the printer through the through holes 5, 5.

Thick parts 6, 6, which are thicker than the thickness of the bottom plate 2, are formed on the periphery of each of the through holes 5, 5, and the thick parts 6, 6 are annular along the shape of the through holes 5, 5. It has the shape of In this way, in this embodiment, the strength of the bottom plate 2 is reinforced by forming these thick parts 6, 6.

The printing section 10 includes a printing mechanism section 11, a motherboard 12, and the like. In addition, 14 in the figure is a switch for turning on/off the operation of the printer, and 15
is a connector for power connection.

The printing mechanism section 11 includes a carriage 18 on which a guide shaft 17 slides on a frame 16;
Print head 19 mounted on this carriage 18
, a ribbon cassette 20, a platen 21, and the like.

Mounted on the motherboard 12 are an electronic component 22 for controlling the printing mechanism section 11 and an interface connector 23 for connection to an external device (not shown).

The shield plate 30 is intended for electromagnetic shielding and is made of iron plate. The shield plate 30 is formed with an air intake port 31, and as described above, cooling air is taken into the printer through the air intake port 31 and the through hole 5. It is designed to be discharged from the opening in the middle cover.

Note that, according to the above embodiment, the printer base 1
Although it has been explained that it is molded from plastic, the present invention is not limited to this, and may be molded from other synthetic resins.

[Effects of the invention] As described above, in the present invention, multiple through holes are provided in the bottom plate of the printer base over almost the entire area.
The amount of material used to manufacture the base can be reduced, thereby reducing manufacturing costs, and furthermore, a large amount of cooling air can be taken in.

Moreover, since the thick portion is formed around the periphery of each through hole, the strength of the base is reinforced, so that a decrease in the strength of the base due to the provision of the through holes can be prevented.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of this conventional example, and Fig. 2 is an exploded perspective view of the conventional example.
3 is an exploded perspective view of the conventional example, and FIG. 4 is a longitudinal sectional view taken along the line B-B in FIG. 3. DESCRIPTION OF SYMBOLS 1... Printer base, 2... Bottom plate, 5... Through hole, 6... Thick part, 10... Printing part, 11... Printing mechanism part, 12... Motherboard.

Claims (1)

[Scope of Claim for Utility Model Registration] In the base structure of a printer on which a printing unit consisting of a printing mechanism unit, a motherboard, etc. is placed, a plurality of through holes are provided in the bottom plate of the base over almost the entire area, and each through hole is A base structure for a printer, characterized in that a thick part is formed on the periphery of the base plate, the thickness being thicker than the thickness of the base bottom plate.