JPS622247A - Electronic copying machine - Google Patents

Abstract

PURPOSE:To prevent an original from being dropped to the back side of a machine body due to the floating of the original and to execute copying work smoothly without complex takeout work, the loss of the original and dispersion of paper by forming a flexible drop preventing member for covering a gap between the body and an original cover on the hinge side of the original cover to the body. CONSTITUTION:A pair of hinge blackets 304 are unitedly projected on the lower surface of the back end part of the cover body 301 and pivotally coupled with hinge blackets 101 projected on the rear side R of the body 1 through pins 301a. Since a large gap d' is formed between the lower side of the rear edge of the cover body 301 and the top surface of the body 1 at the close of the cover body 301 and a small gap (d) is formed at the opening of the cover body 301, these gaps d', (d) are blocked by a drop preventing thin plate member 400 of which one end part 401 is contacted with the top surface of the body 1 and the other end part 402 is contacted with the rear surface of the cover body 304. The thin plate member 400 is repeatedly bent following the opening/ closing of the cover body 301 to block the gap d' or (d).

Description

[Detailed description of the invention]

[Technical Field of the Invention] The present invention relates to an electronic copying machine, and more particularly to a mechanism for preventing a document from falling when a document cover is opened. [1? [One branch of the Ming Dynasty and its problems] In an electronic copying machine that presses and fixes the original on the original table with the original cover to make copies, the original cover is mounted on one side of the copying machine body so that it can be raised and lowered. ing. Therefore, when the document cover is opened after copying is completed, when the document cover is opened, the original +5 placed on the document table is pressed down by 7,
It easily separates from the top of the main body and gets caught up in the wind pressure and moves toward the hinge section. However, since there is a gap between the main body and the document cover on this hinge side, the )7-L-shaped original easily slips through this gap and falls to the back side of the main body. In particular, if the hinge part of the document cover is attached to the opposite side of the operation panel, the back of the main body is often placed in contact with 14 sides of the building due to the layout of the copying machine. When a document falls, the copying machine must be moved to take out the document, and the task of taking out the document is extremely troublesome. [Summary of the Invention] To achieve the above-mentioned object In the present invention, an electronic copying machine is provided with an original cover that can be opened and closed over a document table fixed to the top surface of the copying machine main body (in this case, the main body and the document cover are connected to each other on the hinge side of the document cover with respect to the main body). The main point is that a flexible falling member is provided to cover the gap between The overall configuration of an electronic copying machine to which the invention is applied is shown.The electronic copying machine shown in the figure includes a copying machine main body 1 to which a document table 2 made of transparent glass is fixed on the upper surface, and one end rotatably supported on the upper surface of the main body 1. The document cover 3 that covers the top surface of the document table 2, the paper feed force hits 4 and 5 loaded on the right side of the main body 1 vertically, and the 171 set end on the other side of the main body 1. The main body 1 includes an exposure lamp 7 and mirrors 8, 9, and 10 that move back and forth in the direction of arrow a along the lower surface of the document table 2.
a photoreceptor drum 13 that focuses reflected light from the exposure scanning of the optical system through a variable magnification lens block 11 and a mirror 12; 1~No in the latent image f'J ¥3 shi”C
The developing device 14 for forming a visible image and the rotation of the photosensitive drum 13 as shown by the arrow C 1113L move the copy paper P stored in the cassettes 1 to 4 or 5 to the delivery roller 15 or 16 and the guide. It is sent to the transfer charger 20 and the peeling charger 21 through the path 17 or 18, and
3, and a conveyor belt 23 that transfers the toner image via the transfer charger 20 and transports the copy paper P separated from the drum 13 by the peeling charger 21 in VD. , a pair of ankle rollers 24 and a pair of fixing rollers 24 are installed at the end of the belt 23 to transfer the toner image onto the copy paper P.
A pair of non-paper rollers 25 is provided, and the copy paper 1 is discharged onto the tray 6 via the pair of rollers 25. Further, on the peripheral edge of the photoreceptor drum 13, a charger 2 for eliminating static electricity is provided along the rotation direction to eliminate static electricity from the drum 13 for transfer 1ν.
G, a cleaner 7 for removing tonneau deposited on the surface of the drum 13 after static electricity removal, and a static elimination lamp 28 for erasing the residual image on the drum 13. A charger 29 is disposed to charge the surface of the photoreceptor drum 13 and to avoid forming an electrostatic latent image during exposure. Furthermore, inside the main body 1, there is a cooling fan 30 for preventing temperature rise. J3 and force are located at the insertion tip positions of t-4 and t-5, and there are multiple microswitches I to detect size 1 to 1! Kahi 1 to size detector 31 consisting of Y.
Figure 2 is a side view of the electronic copying machine configured as described above, viewed from the cassette 1-4.5 side. An operation panel (not shown) is arranged on the upper surface on the operator's side.The raw stone cover 3 includes a cover unit 301 made of a hard resin molded body, and a cushioning material 30 laminated and bonded to the inner surface of the cover unit 301.
2 and a white sea [~303] provided in the lower figure of the cushion material 302. A pair of hinge brackets 304 are integrally provided on the lower surface of the rear end of the cover unit 301, and the hinge brackets 30
4 is a hinge bracket I- protruding from the rear side R of the main body 1.
101 via a bottle 301a so as to be rotatable. Therefore, the cover 3 rotates about the pin 301a and moves toward the front side F of the main body 1.

[Press to open and close, and when closed, the original platen 2
303 is in contact with the original placed on the original platen 2 and is pressed and fixed. Here, as shown in FIGS. 3(a) and 3(b), there is a large gap d between the lower rear edge of the integral cover 304 and the top surface of the main body 1. ′ is smaller than this when opened, but a gap d is formed. It is closed by a thin plate material 400 for fall prevention that is in contact with the rear surface of the cover unit 304. This thin plate U-'I00 is made of a highly elastic plastic material such as a polyester film or sheet, and as shown in the figure, it repeatedly bends following the opening and closing of the sea urchin cover unit 301, and the gap d-, Close d. Note that both ends 401 and 402 of the upper plate material 400 are book (A1
．． It is fixed to both or one of the cover unit 301 using an adhesive or other fixing means. If it is fixed only on one side, it is more convenient because the thin plate material 400 can be moved relative to each other when opening and closing. Furthermore, the thin plate material 400 does not need to be provided over the entire area in the direction that is important to the plane of the drawing, and even if it is provided in the shape of a comb, the purpose of preventing the document from falling out from the gap dd can be achieved. Since FIG. 4 does not show the first modification of the above embodiment, WJ
Board vi400 (1) 0aBli401 +, i tree (
A 1 (7) The other end /I02 is in contact with the rear surface of the In section and is fixed to the rear inner surface of the cover unit 301. Note that the spring force that causes the thin plate 400 to return to the horizontal position is 11.1%.
If it is, at least the other end 402 is covered with the cover 3
Fix it to the inner surface of 01. FIGS. 5 and 6 show second and third modifications. First, in FIG. 5, one end 401 of the thin plate 400 is in contact with the top surface of the hinge bracket 101 of the main body 1 on the nff side (11!!), and the end 402 is in contact with the rear surface of the cover unit 301. In this example as well, if there is a force acting on the thin plate material 400 to return it horizontally, it is necessary to fix at least the other end 402 side.Next, in FIG.
It is in contact with the inner surface of the rear part of the body, and either or both of them can be fixed. Furthermore, in these embodiments J3 and its modifications, the thin plate material /100 (4 is the main body 1 and the cover integrally 301), or either one of the two /j (= J form) (
It can be selected depending on the opening angle of the five-force bar 3301, the speed and torque at the time of opening. Next, FIG. 7 shows a fall prevention mechanism according to another embodiment of the invention. A3 in the figure, a foam block 500 is installed between the main body 1 and the cover body 301.
is made of soft Polyurekne foam, and the lower end is made of IA.
It is fixed on the top surface of 1. In addition, a notch 501 is formed in the upper part, and the tongue piece at the rear of the notch 501 is movably abutted against the rear surface of the cover unit 301.
This tongue piece 501 closes the gap d (d'l) by coming into contact with the rear part of the cover unit 301. Next, FIG.
A foam block 600 made of the same material as in the previous embodiment is interposed between the top surface of the cover and the rear surface of the cover unit 301 to close the gap d (d-) when the cover is opened. In this example (゛[Well, the block 600 can be attached to either the main body 1 or the cover integral 301, or both. [Effects of the Invention] As described above in detail with each embodiment, the present invention In such electronic copying machines, the gap between the hinge side of the document cover and the main body of the copying machine is completely closed, so it is possible to completely prevent the original from lifting up and falling to the back of the main body, thereby eliminating the troublesome task of taking out the original. There is no loss or scattering, and the copying process is completed smoothly.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the overall structure of an electronic copying machine to which the present invention is applied, FIG. 2 is a side view of the same, and FIGS. 3(a), (b),
2 is an enlarged view of part A in FIG. 2 showing the first embodiment of the present invention, (a) is a partial sectional view showing the closed state, (b) is a partial sectional view showing the open state, and FIG. 4 (similar to the same embodiment) FIG. 5 is a partial sectional view showing the second modification example of J31J, FIG. 6 is a partial sectional view showing the third modification example, and FIG. 7 is a partial sectional view showing the third modification example of the invention. Fig. 8 is a partial cross-sectional view showing another embodiment of the same song, and Fig. 8 is a partial cross-sectional view of 1J showing a modification of the embodiment of the same song. Cover 301... Horn barreto ioi, 30/I... Hinge bracket 304...
Pin/+00... Thin plate material 500.600... Foam block [1 piece Fig. 8

Claims (3)

[Claims] (1) In an electronic copying machine equipped with a document cover that can be opened and closed over a document table fixed to the top surface of the copying machine body, a flexible cover that covers the gap between the body and the document cover is attached to the hinge side of the document cover relative to the body. An electronic copying machine characterized by being provided with a fall prevention member. (2) The electronic copying machine according to claim 1, wherein the fall prevention member is a thin plate-like member fixed to either or both of the document cover and the main body. (3) The electronic copying machine according to claim 1, wherein the fall prevention member is made of a soft foam material.