JPH0470252A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To make a device strong and easy to assemble, and in addition, easy to maintain by forming the side wall of a device main body as a member separated from a main body frame, and simultaneously, fitting the main body frame and a bottom cover to each other, and combining the wall and the bottom cover to the main body frame. CONSTITUTION:First of all, the main body frame 10 is fitted to the side wall 22. At that time, the end part of the frame 10 is fitted to the grooves 221a, 221b of the side wall 22 so as to be inserted therein, and the frame 10 is fastened to the side wall 22 by a screw. After that, each unit is incorporated successively by dropping it in the frame 10. Namely, first, the unit provided with a recording paper cutting part is incorporated and fitted. Next, the unit provided with an optical reading part is incorporated and fitted. Then, a power unit, etc., is incorporated and fitted in the storage part of the frame 10. After that, other parts are assembled to the frame 10. In the course of the assembling of other parts, the bottom cover 11 provided with a control circuit base plate 14 is fitted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine that is strong and easy to assemble.

[Conventional technology]

In recent years, facsimile machines have rapidly spread throughout the world, and it is now necessary to be able to easily handle various power sources such as 100V, 120V, and 230V in each country, as well as various public lines. 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, the conventional facsimile has a main body frame 31 which is covered with a plurality of upper and lower covers 32 and 33 molded above and below. To assemble such a facsimile, the bottom cover 33
Control circuit board (comprising a system control unit and a network control unit) 34
After the main body frame 31 is installed, each unit and electronic components are assembled on top of the main body frame 31. During this assembly, input/output terminals 35 for circuits etc. are connected to the bottom cover 33.
It is installed on the back side (left side) of the Finally, attaching the upper cover 32 and the like completes the assembly.

[Problem that the invention is trying to solve]

In facsimile machines, it is necessary to check the control circuit board 34 in order to correct defects during assembly or to perform maintenance in the market.However, in conventional facsimile machines, after removing the top cover 32, each unit and electronic component are installed. The control circuit board 34 must be checked by lifting the main body frame 31 so as to rotate it in the R direction about the shaft 36, which is very time-consuming. Furthermore, when changing the specifications, it was necessary to disassemble and reassemble the device that has been installed twice.

In order to solve this problem, some facsimile machines have recently been equipped with a bottom cover 37 that can be opened and closed at the bottom as shown in FIG.

Such a device has a main body and side walls integrated into a main body frame 38.
The bottom cover 37 and the top cover 39 form the exterior. Control circuit board 3 is attached to this bottom cover.
4 is provided, but the size of the control circuit board 34 is very limited. This is because the wall thickness of the lower end of the main body frame 38 becomes extremely thin due to the influence of the draft angle, making molding difficult. That is, if an attempt is made to ensure a height h above the board 34 of about 30 to 40 mm, the tip X2 of the main body frame 38 will become extremely thin.
Molding errors are likely to occur. This is because, due to the mold structure, the exterior surface S
A draft angle of at least 3 degrees is required for stamping, etc., and a draft angle of at least 1 degree is required for the inner wall T. - If the thickness of the blade body frame 38 is not constant, sink marks and welds will occur. For this reason
Since the thickness of l cannot be greater than 3 to 4 mm, X2 becomes thinner. Therefore, a device main body having such a configuration was not actually manufactured, and a configuration as shown in FIG. 9 was adopted instead. The configuration of this facsimile device solves the above-mentioned problem by providing a bag-shaped portion 38a at the bottom of the frame body, but it not only doubles the thickness of the tip but also requires an additional thickness x3 of the core mold. Therefore, although the device is large, the board space X4 is small.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks, and to provide a facsimile machine that is strong, easy to assemble, and easy to maintain.

[Means to solve the problem]

In order to achieve such an object, 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 used as a support member for the control circuit board, and The side wall of the device main body is formed as a separate member from the main body frame, and an upward groove and a downward groove are formed in the side wall, and the end of the main body frame is fitted into the upward groove, and the downward groove is formed in the side wall. A bottom cover is fitted into the groove to connect the side wall and the bottom cover to the main body frame.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the structure of the entire apparatus. In the figure, 1 is a document, and 2 is a document conveying section, the lower part of which forms a unit at the time of assembly as shown by the dotted line in the figure. 3 is the optical system reading section,
As shown by the dotted line in the figure, a unit is formed when assembled. 4
5 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. Reference numeral 7 denotes a discharged paper stack section, 8 a recording paper curl removal section, and 9 an operation panel section, which together with the upper part of the document transport section 2 form a unit when assembled as shown by the dotted line in the figure. 10 is the main body frame, 11 is the main body frame lO with screws lla and llb.
12 is an upper cover, and 13 is a recording cover, which together with the printing section 5 form a unit when assembled as shown by the dotted line in the figure. 14 is a control circuit board;
It is isolated from other units and electronic components by the main body frame IO, and is placed at the bottom of the apparatus main body. This control circuit board 14 can be repaired by removing the screws lla and llb and opening the bottom cover 11 as shown in FIG. 15 is a power supply unit, 16 is a connection cord, 1
7aS17b is a hole drilled in the main body frame,
The power supply unit 15 is connected to the control circuit board 14 through a hole 17a with a connection cord 16, and the printing section 5 is connected to the control circuit board 14 through a hole 17b with a connection cord 16. 18 is a paper discharge tray. 19 is a speaker attached to the bottom cover 11, and 20 is a shield plate.

Here, FIGS. 2 and 3 show side views of the device shown in FIG. 1, and 22 is a side wall that is molded separately from the main body frame 10. On both sides of this side wall 22 are substrates 14, respectively.
Modular cover 2 fixed with screws 23a and 24a to
3.24, there are cutouts 22a and 22b for positioning the modular terminals 21a to 2 in the cover 23.
1c is soldered to the board 14. 21a is a line input of a general communication network, 21b 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. Further, a modular terminal 21d inside the cover 24 shown in FIG. 4 is also soldered to the board 14.

The side wall 22 has a cover 23 as shown in FIGS. 4 and 5.
．． The groove portion 221 ! is formed so that the upper portions of the notch portions 22 a and 22 b can be fitted into the main body frame 10 . 1
．． 22 H1, and the cover 23.24
Groove portion 22□1.2 that fits with the protruding pieces 23b and 24b of
2°5 is also formed. Such a side wall 22 has screws 2
It is attached to the main body frame 10 at 23 and 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 for the speaker 19.

In this way, the side wall 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 side wall 22, and the bottom cover 11 is attached to the main body frame 10. The mounting is such that the space can be maximized and the bottom cover 11 can be mounted reliably. Further, notches 22a and 22b are provided in the side wall 22, and the notches 22a and 22b are provided in the side wall 22.
A modular cover 23.24 with modular terminals 21a to 21d is positioned on a and 22b, and the modular terminals 21a to 21d and the modular cover 23.2
4 is attached to the board 14, the number of signal lines can be reduced, and at the same time, conversion parts for destination change can be integrated with the bottom cover 11 to form a unit. Moreover, the surroundings of the notches 22a and 22b are covered by the modular cover 2.
3.24, the side wall 22, and the main body frame 10 have a strong structure, and the strength is sufficiently compensated by the formation of the notches 22a and 22b.

Here, we will discuss the document feeding system.

The document l stacked on the upper surface of the recording cover 13 is separated by the pressing piece 2.
The sheets are separated one by one by the preliminary conveyance roller 2c in pressure contact with a and the separation roller 2d in pressure contact with the separation friction piece 2b, and further by the paper feed roller 2g in pressure contact with the pressure roller 2e and the paper discharge roller 2h in pressure contact with the pressure roller 2f. The paper is conveyed and stacked on the paper discharge tray 18. 21 is a lower document table, and 2j is a lower document table.

Next, we will discuss the manuscript reading system.

Further, the lower surface of the transported original 1 is irradiated with a light source 3b, for example, an LED array, through the original glass 3a, and the reflected light is directed to a photoelectric conversion element 3g such as a CCD via a lens 3f by mirrors 3c, 3d, and 3e. There is. 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).

Let's talk about the recording system.

The thermal recording paper 4 is a roll paper that is stored in a roll receiving portion of the frame 10 in a drop-down manner. 4a is roll full state, 4
b 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, the recording paper 4 is configured to print one dot at a time by a heat-sensitive head (thermal head) 5b that is pressed against the platen roller 5a. The printed recording paper passes between the fixed blade 6a and the rotary movable blade 6b of the cutter section, as shown by the two-dot chain line, and then passes between the inner tray 7a and the outer tray 7.
It is structured so that it enters the part of the reversing tray consisting of b from the beginning. The recording sheets that are sequentially fed in by the platen roller are ejected with their leading ends inserted into a part of the reversing tray in a loop to the outside of the apparatus, and each time a sheet is received, the movable blade 6b rotates upward in the figure to cut it. The tip is held in its mouth and the rear end is ejected to the outside of the device.

The curl removing section 8 will be described.

8a is a movable kite pongee, 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 moved by a mechanism (not shown) to the position 8a in the figure when the roll paper is as thin as the core diameter, and to the position &d in the figure when it is in a full state.
, and changes the amount of winding of the roll paper around the fixed shaft 8b.

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 discharged roll paper.

Further, 9 is an operation panel section, 9a is a display such as an LCD,
9b is the operation panel control board 0PCNT (operation control board), 9c is the key top, 9d is 0P
This is a tact switch on CNT.

Next, the case of assembling the facsimile machine configured as described above will be explained.

First, the injection molded main body frame 10 is attached to the side wall 22. At this time, the groove 22□1 of the side wall 22
．． 22 □ 5 so that the end of the main body frame IO is inserted, and attach the main body frame 10 to the side wall 22 with the screws 223.
．． It is concluded at 224. Thereafter, each unit is assembled by dropping it into the main body frame IO 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.

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

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

Finally, a 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.

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 1 with the control circuit board 14
1 will be installed. At this time, after hooking the claw at the tip of the bottom cover 11 into the groove of the main body frame 10, the modular cover 23 is inserted into the groove part 22□2.22□5 of the side wall 22.
．． Fit the bottom cover 11 so that the protruding pieces 23b and 124b of 24 are inserted, and screw the bottom cover 11 onto the main body frame lO.
It is concluded with llb.

Electrical connections between the control circuit board 14, the power supply unit 15, and its lot number unit are made by a connection cord 16 through holes 17a and 17b.

Next, a case will be described in which the control circuit board 34 is checked or replaced in case of defects during assembly, rework, or maintenance in the market. Screws lla, ll of the bottom cover 11 of the facsimile machine assembled as described above
b, 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. Then, the control circuit board 14 is checked and any malfunctioning parts are repaired. Further, when changing the destination, since the modular one terminal is integrated with the board 14, it is only necessary to replace the board 14 or the entire bottom cover 11.

In the above embodiments, the modular covers 23 and 24 are screwed to the base plate 14, but they may also be fixed to the bottom cover 11. In addition, when it is assembled temporarily by using hooks instead of screws, the board 14 and bottom cover 11
Since it is sandwiched between the two, the same effect can be obtained.

〔Effect of the invention〕

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 used as a support member for the control circuit board, and the device The side wall of the main body is formed as a separate member from the main body frame, and an upward groove and a downward groove are formed in the side wall, and the end of the main body frame is fitted into the upward groove, and the downward groove is formed. In order to fit the bottom cover to the side wall and connect the bottom cover to the main body frame,
The main body of the device is formed by simply dropping it from above and fixing it with screws, making it easy to assemble, maximizing board space, and providing sufficient strength for the device. It is possible to provide a device in which input and output lines can be connected from the side of the device without the need for cables connecting the boards.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a facsimile machine 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, and FIG. The figure is a sectional view taken from line 〇-〇 in Fig. 3, Fig. 5 is a sectional view taken from line PP in Fig. 3, Fig. 6 is a perspective view of the bottom cover in Fig. 1, and Fig. 7 is a sectional view taken from line 〇-〇 in Fig. 3. The figure is a configuration diagram of a conventional facsimile machine, Figure 8 is an external view of the facsimile machine of Figure 7 with an openable bottom cover, and Figure 9 is a diagram of the machine of Figure 8 when its strength is guaranteed. 1 is an outline diagram of a conventional facsimile device. 10...Body frame 11...Bottom cover 11a, l1b---Screws 14...Control circuit board 21a-21d...Modular terminal 22...Side wall 22a, 22b-Notch 22, . 22□ゎ...Groove 22□1.22□5...Groove 223.224...Screw 23.24...Modular cover 23b, 24b...Protruding piece

Claims (1)

[Claims] 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 a side wall of the device main body is a separate member from the main body frame. At the same time, an upward groove and a downward groove are formed in the side wall, an end of the main body frame is fitted into the upward groove, a bottom cover is fitted into the downward groove, and the side wall is aligned with the side wall. A facsimile machine characterized in that the bottom cover is coupled to the main body frame.