JPS58197953A - Original read device of facsimile or the like - Google Patents

Abstract

PURPOSE:To reduce the number of component parts of a device, and also to improve operability in case of transmitting an original, by using the upper face of a desk of an original read device, as an original carrying path. CONSTITUTION:A device body 2 of an original read device 1 is installed on an upper face 3a of a desk 3 through a support 4 whose height can be adjusted. A prescribed gap S is set between a paper guide 5 for covering a bottom face 2a of this body 2 and the upper face 3a of the desk 3, and a carrying path (l) of an original to be transmitted 6 is formed by the guide 5 and the upper face 3a. Also, a feed-in roll 7 and a discharge roll 8 of the original carrying part are exposed in the carrying path (l) through an opening part 5a formed on the guide 5 for covering the bottom face 2a of the body 2, and are made to press- contact with the upper face 3a of the desk 3. Also, a read part constituted of a long image sensor 9, a lens array 10 and mirrors 12, 13 is provided on the carrying path (l). In this way, the number of parts of the device 1 is reduced, and also the operability in case of transmitting the original is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a document reading device such as a copying machine or a facsimile machine, and more particularly to the structure of a document conveying section in a document reading device.

Conventionally, a document reading stirrup for a facsimile machine or the like has often been constructed on the upper part of the facsimile machine in order to improve operability when feeding in a document.

By the way, as a result of recent technological innovations, the above-mentioned facsimiles and the like are becoming smaller year by year, and products that can be placed on a desk have appeared. If such a facsimile machine or the like is installed on a desk and a document is set while sitting on a chair, the document must be moved upwards, which has the drawback of deteriorating its operability.

In view of the above circumstances, this invention improves the operability when feeding in a document while sitting on a chair, and
The present invention aims to reduce the number of component parts and provide a reading device that does not require the installation of a tray.

For this reason, in the present invention, the reading section of the reading device faces the desk top side, and the desk top surface is used as part of the document conveyance path.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A document reading device such as a facsimile machine according to the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

FIG. 1 is a conceptual cross-sectional view of the main parts of a document reading device such as a facsimile according to the present invention.

In FIG. 1, a main body 2 of a document reading device 1 is installed on a desk top surface 3a of a desk 3 via a height-adjustable support 4. As shown in FIG. For this reason, a predetermined gap S is set between the paper guide 5 that covers the bottom surface 2a of the device main body 2 and the top surface 3a of the desk 3.
A transport path l for the original document 6 to be transmitted is formed by this.

The feed-in roll 7 and ejection roll 8 of the document transport section are
They are exposed in the conveyance path 1 through an opening 5a formed in the vapor guide 5 covering the bottom 2a of the apparatus main body 2, and are in contact with the desk top surface 3a at a predetermined pressure. on the other hand,
The reading section of the document reading device w1 is disposed above the transport section within the apparatus main body 2. This reading section includes a long image sensor 9, a lens eye 10, an illumination lamp 11, and a Mira T12.
．． It consists of 13. In addition, the reference numeral 14 in Figure 1
1 is a drive motor that drives the feed-in roll 7 and the discharge roll 8, and 15 is a document detection sensor. Reference numeral 16 denotes an IF that processes image information transmitted from the long image sensor 9 via the cable 17! It is a control section that performs

Next, the operation of the document reading device described above will be explained, and the configuration will also be explained in more detail.

In FIG. 1, when the original 6 placed on the desk surface 3a of the desk 3 is inserted into the feeding port 2b of the main body 2 of the apparatus as shown by arrow A,
The document detection sensor 15 operates to detect that the document 6 has been fed into the transport path 1 . And this document detection sensor 15
The drive motor 14 operates based on the detection signal.

By the way, the feed-in roller and discharge roll 8 driven by this drive motor 14 are connected to the rotation shaft 1 of the drive motor 14, as shown in the plan view of the main part of the drive mechanism shown in FIG.
The feed-in roll 7 and the discharge roll 8 are driven by a belt 18 wound around the belt 4a through pulleys 7a and Ba disposed at the ends of the feed-in roll 7 and the discharge roll 8, respectively. but,
Since the pulleys 1-1 and 8a are connected to the feed-in roll and the discharge roll 8 through torque limiters 19 and 20, the feed-in roll 7 and the discharge roll 8 are normally connected to each other. is in contact with the desk top surface 3a with a predetermined pressure, the torque limiters 19 and 20 act due to the dark frictional force, and the feed-in roll 7 and discharge roll 8 do not rotate. When the original 6 is pushed into the feed-in roll 7 and the desk top 38 from this state (Fig. 1), the frictional resistance between the original 6 and the desk top 38 decreases, and the torque limiter 19 of the feed-in roll 7 is released. The document 6 is then conveyed into the conveyance path 1 by the feed-in roll 7. Also, the document 6 is on the transport path
When the document is transported inside, the illumination lamp 11 is turned on based on the document detection sensor 15. When this illumination lamp 11 is turned on, the image information of the document 6 conveyed in the conveyance path 1 is transferred to the mirror 1.
2. Follow the optical path 21 from the lens eye 10 and the mirror 13 to reach the long image sensor 9, photoelectrically convert the image information written on the document 6 by the long image sensor 9, and send the converted image signal to the cable. 17 to the control unit 16. This control section 16 processes the image signal and sends it to a recording section (not shown).

Note that when the document 6 is pushed by the feed-in roll 7 into the discharge roll 8 and the desk surface 3ailtl, the discharge roll 8, like the feed-in roll 7, causes the resistance between the desk surface 3a and the document 6 to be Since the torque limiter 20 (FIG. 2) of the discharge roll 8 is released, the document 6 is discharged from the discharge port 2C of the apparatus main body 2 by the discharge roll 8. Further, the above-mentioned drive motor 14, illumination lamp 11, etc. are stopped when the document detection sensor 15 detects the end of the document 6, based on this detection signal.

As described above, since the document reading device such as a facsimile according to the present invention uses the desk top surface as the document conveyance path, the number of component parts of the device can be reduced, and the operability when sending the document while sitting is improved. It has the excellent effect of not requiring a tray.

[Brief explanation of the drawings] Fig. 1 shows a document reading l1 of a facsimile machine etc. according to the present invention.
FIG. 2 is a schematic cross-sectional view of the main parts showing the structure of 1f, and FIG. 2 is a plan view of the main parts showing the drive mechanism of the feed-in roll and the discharge roll. DESCRIPTION OF SYMBOLS 1... Original reading device, 2... Apparatus main body, 7... Feed-in roll, 8... Ejection roll, 3a... Desk surface, S... n11m. O ω to

Claims (1)

[Claims] Note @1 A feed-in roll and an ejection roll for transporting the original are exposed from the bottom of the main body in the space between them, and a document transporting section is formed there, whereby the desk top surface is used as a transporting path of the document transporting section, A document reading device for a facsimile machine, etc., characterized in that the document fed into the conveyance path is conveyed by the feed-in roll and the discharge roll.