JPH04249465A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent the bottom cover from falling by installing a bottom cover that allows the bottom part of the main body of a facsimile to be opened and closed, making one edge section of the bottom cover to a hook, preparing protruding pieces in the lower cover of the main body of facsimile, and fixing the other edge side of the bottom cover to the main body. CONSTITUTION:The bottom cover 11 of a facsimile is provided with a control circuit substrate 14, set-screws of the bottom cover 11 are removed to open the cover 11 as the figure shows. At this time, when making the facsimile device erect on a desk by abutting the side surface of the deep part of the facsimile equipment on the face the desk, etc., cover 11 can be easily opened. Then, as the figure shows, the U-shape hook section 11g of the cover 112 is caught by protruding pieces 22x of the lower cover to prevent the cover 11 from falling. Accordingly, such trouble that the substrate is dropped by mistake and the connector is came off is prevented when mending the substrate. The substrate 14 is checked and mended for defective section. Furthermore, when a shipping destination is changed, since the modular terminal and the substrate 14 are integrally formed, it is enough to replace the substrate 14 or including the cover 11 as a whole.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine having a control circuit board disposed at the bottom of the main body of the machine.

0002

[Prior Art] In recent years, facsimiles have become rapidly popular in various parts of the world.
It is necessary to be able to easily support 230V and other public networks in various countries. Additionally, since they are produced locally in various parts of the world, there is a need for molding and molding of parts that can be done easily anywhere. Furthermore, there is a demand for a structure that can be easily maintained.

As shown in FIG. 7, a conventional facsimile has a main body frame 31 which is covered with a plurality of upper and lower covers 32 and 33 which are molded above and below. To assemble such a facsimile, the control circuit board (comprising a system control unit and a network control unit) 34 is mounted on the bottom cover 33, and then the main body frame 31 is placed.
On top of that, each unit and electronic parts are assembled. During this assembly, input/output terminals 35 such as circuits are attached to the back side (left side) of the bottom cover 33. Finally, the upper cover 32 and the like are attached to complete the assembly.

0004

[Problems to be Solved by the Invention] In facsimile machines, it is necessary to check the control circuit board 34 for repairing defects during assembly and for maintenance in the market, but in conventional facsimile machines, after removing the top cover 32, The control circuit board 34 must be checked by lifting the main body frame 31, in which each unit and electronic components are installed, by rotating it in the R direction about the shaft 36.
It was very time consuming. Furthermore, when changing the specifications, it was necessary to disassemble and reassemble the device once installed.

[0005] In order to solve this problem, there have recently been some facsimile machines in which the bottom part of the facsimile machine is used as a bottom cover that can be opened and closed.

However, since the bottom cover has a structure in which one end is simply inserted into a hole in the main unit, when the bottom cover is opened, the bottom cover falls off from the main unit, and the flexible cable or cable connecting the main unit and the board can be damaged. This caused inconvenience during work, such as the parts falling off.

It has also been desired to be able to easily support the substrate itself on the bottom cover.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks, and to provide a simple structure for attaching the bottom cover so that the bottom cover does not easily fall off when opened.

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a control circuit board disposed at the bottom of a device main body, and a bottom cover that allows the bottom of the device main body to be opened and closed to the control circuit board. a supporting member, one end side of the bottom cover is a hook portion, and a protruding piece is formed on the lower cover of the device main body, the hook portion of the bottom cover is engaged with the protruding piece, and the other end of the bottom cover is a hook portion. The end side is fixed to the main body of the device.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall structure of the apparatus. In the figure, 1 is a document, 2 is a document conveying section, and the lower part thereof forms a unit during assembly as shown by the dotted line in the figure. Reference numeral 3 denotes an optical system reading section, which forms a unit when assembled as shown by the dotted line in the figure. 4 is a thermal recording paper, 5 is a printing section, and 6 is a recording paper cutting section, forming a unit when assembled as shown by the dotted line in the figure. 7 is a discharge paper stack section, 8 is a recording paper curl removal section,
Reference numeral 9 denotes an operation panel section, which together with the upper part of the document transport section 2 forms a unit when assembled as shown by the dotted line in the figure. 1
0 is the main body frame, 11 is the bottom cover attached to the main body frame 10 with screws 11a and 11b, 12 is the top cover,
Reference numeral 13 denotes a recording cover, which together with the printing section 5 forms a unit when assembled as shown by the dotted line in the figure. Reference numeral 14 denotes a control circuit board, which is separated from other units and electronic components by the body frame 10 and is placed at the bottom of the apparatus body. This control circuit board 14 is attached to the bottom cover 11, and the screws 11a and 11b are removed to remove the bottom cover 11 as shown in FIG.
It can be repaired by opening it as shown below.

Here, as shown in FIG. 6, the control circuit board 14 has one end connected to a pair of claws 11 provided on the bottom cover 11.
It is inserted between e and 11f, and the other end is screwed into screws 11c and 1.
1d is fixed to the bottom cover 11. Pair of claws 11
For example, three pairs of e and 11f are provided, and the circuit board 14
Of the pair of claws 11e and 11f, one claw 11f on the bottom cover 11 side is formed larger than the other claw 11e. This makes it easier to insert the circuit board 14 between the claws 11e and 11f.

15 is a power supply unit, 16 is a connection cord, 17a and 17b are holes drilled in the main body frame, and the power supply unit 15 has a connection cord 16 connected to the hole 17.
a, and is connected to the control circuit board 14 through the printing section 5.
is connected to the control circuit board 1 through the hole 17b with the connection cord 16.
Connected to 4. 18 is a paper discharge tray. 19 is a speaker attached to the bottom cover 11, and 20 is a shield plate. Reference numeral 27 denotes a roll paper receiving part, and this roll paper receiving part 27 is provided with a partition plate 28 that differs depending on the paper width size, and hook holes 27a and 27b for hooks 28a and 28b of this partition plate 28 are provided. Ribs 2 are provided below the roll paper receiving portion 27 so as to surround the hook holes 27a and 27b.
7c and 27d are provided. Further, a bottom cover 11 extends below the roll paper receiving portion, and when the bottom cover 11 is closed, the inner surface of the bottom cover 11 and the ribs 27c and 27d come into contact. As a result, the hook hole 2 of the roll paper receiving part 27
7a, 27b and the control circuit board 14 are isolated from each other,
Dust is prevented from entering the control circuit board 34 through the hook holes 27a, 27b.

FIGS. 2 and 3 show side views of the device shown in FIG. 1. Reference numeral 22 denotes a lower cover molded separately from the main body frame 10. On both sides of this lower cover 22, there are provided a substrate 14, respectively. Notches 22 are provided for positioning modular covers 23 and 24 fixed with screws 23a and 24a.
a and 22b, and modular terminals 21a to 21c inside the cover 23 are soldered to the board 14.

A projecting piece 22x is formed on the lower cover 22 adjacent to the bottom cover 11. A hook portion 11g bent into a U-shape is provided at one end of the bottom cover 11, and the protruding piece 22x is engaged with the hook portion 11g.

21a is a line input of a general communication network;
1b is a telephone line to a handset attached to the facsimile, and 21c is a slave telephone terminal for connecting a slave telephone located away from the facsimile main body. Also, Figure 4
The modular terminal 21d inside the cover 24 shown in FIG.
is soldered to.

As shown in FIGS. 4 and 5, the lower cover 22 has a flat plate shape except for the notches 22a and 22b for the covers 23 and 24, and the upper part of the notches 22a and 22b forms the body frame. Groove 2 so that it can be fitted with 10
21a, 221b, and covers 23, 2
Grooves 222a and 2 that fit with the protruding pieces 23b and 24b of 4
22b is also formed. The lower cover 22 has screws 223,
It is coupled to the main body frame 10 at 224. The bottom cover 11 is constructed as shown in FIG. 6, 25 is a memory backup battery of the device, 25a is a signal line, and 19a
is a signal line of the speaker 19.

As described above, the lower cover 22 is provided as a separate member to the main body frame 10, the space for the board 14 attached to the bottom cover 11 is determined by the lower cover 22, and the bottom cover 1
1 is installed on the main body frame 10, so the board 1
4 can be set to the maximum, and the bottom cover 11 can be installed reliably. In addition, cutouts 22a and 22 are provided in the lower cover 22.
b, and the modular covers 23 and 24 equipped with the modular terminals 21a to 21d are located in the notches 22a and 22b, and the modular terminals 21a to 21d and the modular covers 23 and 24 are attached to the board 14, so that the signal line At the same time, the number of converting parts for changing the destination can be integrated with the bottom cover 11 to form a unit. Moreover, the periphery of the notches 22a and 22b has a strong structure with the modular covers 23 and 24, the lower cover 22, and the main body frame 10, and the notches 22a and 22b have a strong structure.
The strength is sufficiently compensated by the formation of portions a and 22b.

The document feeding system will now be described.

[0020] The originals 1 stacked on the top surface of the recording cover 13 are
The preliminary conveyance roller 2c in pressure contact with the separation pressure piece 2a and the separation roller 2d in pressure contact with the separation friction piece 2b separate the sheets one by one, and further the paper feed roller 2g in pressure contact with the pressure roller 2e and the discharged paper in pressure contact with the pressure roller 2f. The paper is conveyed by rollers 2h and stacked on the paper discharge tray 18. 2i is an upper document table, and 2j is a lower document table.

Next, the document reading system will be described.

Furthermore, the lower surface of the transported original 1 is illuminated by a light source 3b, for example, an LED array, through the original glass 3a,
The reflected light is passed through the lens 3f by the mirrors 3c, 3d, and 3e.
is connected to a photoelectric conversion element 3g such as a CCD. The image is recorded by its own recording section 5 when in copy mode, and transmitted to the recording section of another machine when in facsimile mode (transmission mode).

The recording system will now be described.

The thermal recording paper 4 is a roll paper and is stored in a roll receiving portion of the frame 10 in a drop-down manner. 4a indicates a roll full state, and 4b indicates a roll empty state. After the roll paper 4 is decurled by the curl removal section 8, it is conveyed in the paper discharge direction by a platen roller 5a driven by a motor (not shown). At this time, a thermal head 5b pressed against the platen roller 5a causes the recording paper 4 to
The structure is such that each dot is printed. As shown by the two-dot chain line, the printed recording paper passes between the fixed blade 6a and the rotating movable blade 6b of the cutter section, and enters the reversing tray section consisting of the inner tray 7a and the outer tray 7b from the beginning. ing. The recording sheets are fed in sequentially by the platen roller, and the leading edge is inserted into the reversing tray section, and the recording sheets are ejected in a loop to the outside of the device.
b is cut by rotating upward in the figure, and the rear end is discharged to the outside of the device while the tip is held in the mouth.

The curl removing section 8 will now be described.

8a is a moving guide shaft, and 8b is a fixed shaft (fixed to the recording cover 13 side). 8c is the rotation center axis of the guide shaft. Depending on the remaining winding diameter of the roll paper 4, the moving guide shaft 8a is located at the position 8a in the figure when the roll paper is as thin as the core diameter by a mechanical system (not shown), and at the position 8d in the figure when it is in a full state. The amount of winding of the roll paper around the fixed shaft 8b is changed.

[0027] The degree of curl removal is varied by the difference in the amount of wrapping, so that a constant level of flatness is always given to the ejected roll paper.

Further, 9 is an operation panel section, and 9a is an LCD
9b is the operation panel control board OPCNT (operation control board), 9c is the key top,
9d is a tact switch on OPCNT.

Next, the case of assembling the facsimile apparatus constructed as described above will be explained.

First, the injection molded main body frame 10 is attached to the lower cover 22. At this time, the ends of the main frame 10 are inserted into the grooves 221a and 221b of the lower cover 22, and the main frame 10 is fastened to the lower cover 22 with screws 223 and 224. Thereafter, each unit is assembled by dropping it into the main body frame 10 using an automatic assembly machine. That is, first, a unit provided with the recording paper cutting section 6 is assembled and attached. Next, a unit equipped with the optical system reading section 3 is assembled and attached. Then, the power supply unit 15 is assembled and attached to the storage section of the main body frame 10.

Furthermore, a unit including a recording cover 13 and a printing section 5 is assembled and attached to the main body frame 10.

Furthermore, a unit including the lower part of the document transport section 2 is assembled and attached to the main body frame 10.

Finally, the unit including the upper side of the document transport section 2 and the operation panel section 9 is assembled and attached to the main body frame 10.

[0034] This completes the automatic assembly by dropping each unit, but after this, other parts are assembled to the main body frame 10. During the assembly of other parts, the bottom cover 11 with the control circuit board 14 will be attached. At this time, attach the hook portion 11g at the tip of the bottom cover 11 to the protruding piece 2 of the bottom cover 22.
2x, then the grooves 222a, 2 of the lower cover 22
22b, the protruding pieces 23b of the modular covers 23 and 24,
24b is inserted, and the bottom cover 11 is fastened to the main body frame 10 with screws 11a and 11b.

When the bottom cover 11 is connected to the main body frame 10, the inner surface of the bottom cover 11 comes into contact with the ribs 27c, 27d, so that the hooking hole 27 of the roll paper receiving part 27 is closed.
a, 27b and the control circuit board 14 are isolated from each other, and dirt is prevented from entering the control circuit board 34 through the hook holes 27a, 27b.

[0036] The control circuit board 14 and the power supply unit 1
5. Electrical connections with other units are made through holes 17a, 1
This is done by the connection cord 16 via 7b.

Next, a case will be explained in which the control circuit board 34 is checked or replaced in case of defects during assembly, rework, or maintenance in the market. Screws 1 of the bottom cover 11 of the facsimile machine assembled as described above
1a and 11b, and open the bottom cover 11 as shown in FIG. At this time, the bottom cover 11 can be opened very easily if the back side of the device is placed against a desk or the like. At this time, as shown in FIG. 2, the hook portion 11g of the bottom cover is caught on the protruding piece 22x of the bottom cover, thereby preventing the bottom cover from falling off from the main body. Therefore, it is possible to prevent troubles such as the board accidentally falling and the connector coming off when repairing the board. Then, the control circuit board 14 is checked and any malfunctioning parts are repaired. In addition, when changing the destination, since the modular terminal is integrated with the board 14,
All that is required is to replace the board 14 or the entire bottom cover 11.

In the above embodiment, the modular cover 23
, 24 are screwed to the substrate 14 in the explanation, but they may also be fixed to the bottom cover 11. Furthermore, when the device is assembled temporarily by hooking with nails instead of screws, the same effect can be obtained since the device is sandwiched between the substrate 14 and the bottom cover 11.

[0039]

As described in detail above, according to the present invention, a control circuit board is disposed at the bottom of the device main body, and a bottom cover that allows the bottom of the device main body to be opened and closed is provided as a support member for the control circuit board. and one end side of the bottom cover is a hook portion, and a protruding piece is formed on the bottom cover of the device main body,
Since the hook portion of the bottom cover is engaged with the protruding piece and the other end of the bottom cover is fixed to the main body of the device, the bottom cover will not fall off from the main body even if the other end of the bottom cover is removed. Inconveniences such as connector disconnection can be prevented.

Furthermore, when attaching the board to the bottom cover, the operation of inserting it into the plurality of claws can be easily performed, and the number of assembly steps can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram when the bottom cover of FIG. 1 is opened.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a sectional view taken along line OO in FIG. 3;

FIG. 5 is a sectional view taken along line PP in FIG. 3;

FIG. 6 is a perspective view of the bottom cover of FIG. 1;

FIG. 7 is a configuration diagram of a conventional facsimile device.

[Explanation of symbols] 10 Main frame 11 Bottom cover 11g hook part 11e, 11f Claw 14 Control circuit board 21a-21d Modular terminal 22 Lower cover 22x protruding piece 23, 24 Modular cover

Claims (2)

[Claims] 1. A control circuit board is disposed at the bottom of the device main body, a bottom cover that allows the bottom of the device main body to be opened and closed is used as a support member for the control circuit board, and one end side of the bottom cover is provided with a hook portion. A facsimile machine characterized in that a protruding piece is formed on the lower cover of the apparatus main body, a hook portion of the bottom cover is engaged with the protruding piece, and the other end side of the bottom cover is fixed to the apparatus main body. Device. 2. A pair of claws for sandwiching the control circuit board are formed on one end side of the bottom cover, and one of the claws on the bottom cover side of the pair of claws is formed larger than the other claw. The facsimile machine according to claim 1, characterized in that: