JPH0561153U - Facsimile device original release mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] A facsimile machine of a type in which a scanner cover is opened and closed coaxially with an extractor roller provided on the document discharge side of the cover, and an extractor roller on the cover side and an apparatus main body are interlocked with a cover opening operation. To realize a document releasing mechanism in which a gap is automatically formed between the press roller on the side. [Structure] A press roller 7 rollingly contacted with an extract roller 6 on the cover 2 side is elastically supported in the apparatus body 1 so as to be vertically movable, and a press roller is provided on the document discharge side of the scanner cover 2 in conjunction with a cover opening operation. Cam 11 to press 7
To line up.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a document releasing mechanism of a facsimile machine.

[0002]

[Prior Art]

 In a facsimile machine of a type that automatically feeds originals from the original setting section on the main body of the apparatus to the scanner section inside the main body, the scanner section is covered as a means for releasing the original when a paper jam of the original or a feeding error occurs. In many cases, the scanner cover (front cover) is attached so that it can be opened and closed on the main body of the device.

In that case, a cover mounting structure is also proposed in which, when the scanner cover is opened, the cover-side rollers that are in rolling contact with the body-side rollers in the cover-closed state are simultaneously opened to the upper retracted position. However, in this case, the scanner cover has to be hinged around the rotation axis of the roller attached to the cover and a different axis, which makes the cover attachment structure complicated. Also, with this mounting structure, since all the rollers mounted on the cover side are displaced when the cover is opened, a drive roller such as an extract roller can be provided on the cover side from the viewpoint of the driving mechanism. However, there is a technical restriction that only the press roller can be installed.

[0004]

[Problems to be solved by the device]

 Therefore, as a measure for avoiding the above-mentioned problems and restrictions, a cover mounting structure for opening and closing the scanner cover coaxially with an extract roller provided on the document discharge side of the apparatus main body is directed.

However, as a problem when this mounting structure is adopted, when a document is jammed while being constrained between the exhaust roller and the press roller on the document ejection side, the scanner cover is opened. Even if the originals are not separated from each other, the originals may be left in the nipping state between the extract roller on the cover side and the press roller on the machine body side, which may hinder the original release.

In order to address such a problem, the present invention relates to a facsimile machine of the type in which the scanner cover is opened and closed coaxially with the above-mentioned extract roller, and when the cover is opened, the extract roller on the cover side is interlocked with it. We proposed a document release mechanism that was devised so that a gap was automatically formed between the press roller and the press roller on the main body of the device.

[0007]

[Means for Solving the Problems]

 That is, the document release mechanism according to the present invention is a facsimile device in which the scanner cover is opened and closed coaxially with the extract roller provided on the document discharge side of the device body. In addition to being elastically supported so that it can move up and down, a cam is connected to the document discharge side of the scanner cover to press the press roller in conjunction with the cover opening operation.

[0008]

[Action]

 In this document release mechanism, when the scanner cover is opened, a cam that is connected to the document discharge side of the scanner cover forcibly pushes down the press roller on the main body of the device to form a gap between the two. Therefore, even if a paper jam or the like occurs while the document is restrained between the extract roller and the press roller, the document can be released smoothly.

[0009]

【Example】

 1 and 2 show an embodiment of the present invention, in which 1 is a facsimile apparatus main body, 2 is a scanner cover which is mounted on the apparatus main body 1 so as to cover the scanner unit. In the meantime, a horizontal feed for discharging a document (not shown) that is once slanted downward from the document setting section 3 on the main body 1 through the reading position S from a document discharge port 5 opened on the side surface of the apparatus main body 1. The paper path 4 is formed.

The scanner cover 2 is provided with an extract roller 6 on the document discharge side, and is hinged to the apparatus main body 1 coaxially with the unillustrated rotation shaft of the extract roller 6 (axis O). It is mounted to be openable and closable around the coaxial center O.

On the other hand, on the side of the apparatus main body 1 located directly below the extract roller 6, a press roller 7 which is rotated while being in contact with the extract roller 6 and is driven is rotatably supported. In this press roller 7, press shafts 7a at both ends are inserted into vertical grooves 8a of a bearing member 8 arranged on both sides, and can be vertically moved along the vertical grooves 8a. A leaf spring 10 extending in the horizontal direction from a bracket 9 in the main body 1 is brought into contact with the lower surface side of the above and elastically supported in an upwardly biased state.

Then, on the premise that the press roller 7 on the apparatus main body 1 side is thus elastically supported so as to be vertically movable, the press roller 7 is provided on the document discharge side of the scanner cover 2 in conjunction with the cover opening operation. A cam 11 that presses is integrally connected by resin molding or the like. When the scanner cover 2 is opened, the cam 11 comes into contact with the press shaft 7a and forcibly presses it down (a curved surface that gradually increases the distance from the axis O from the cover lower surface side to the cover upper surface side) 11a. , A hook-shaped protrusion 11b protruding downward from the upper surface side of the cover, and a bearing portion 12 into which the press shaft 7a is fitted is formed at a position where the cam surface 11a and the hook-shaped protrusion 11b face each other.

At the corresponding position on the document insertion side between the apparatus body 1 and the scanner cover 2 that sandwich the paper feed path 4, a pair of feed roller and a separate roller, and a pair of feed roller and a press roller that are also paired are provided. A roller or the like is attached (not shown).

With such a document release mechanism, when the scanner cover 2 is opened, the cam 11 connected to the document discharge side of the scanner cover 2 causes the cam center 11 of the axis of the extractor 6 to move. Rotating around, the cam surface 11a abuts on the upper surface of the press shaft 7a of the press roller 7 elastically supported on the main body 1 side, and forcibly pushes this downward so that the cover opening degree between The gap C is increased with the increase. In the cover fully opened state shown in FIG. 2, the protrusion 11b of the cam 11 wraps around the lower side of the press shaft 7a, and the press shaft 7a fits into the bearing portion 12 of the press shaft 7a. With the required clearance C formed in the scanner cover 2, the scanner cover 2 is stably held in the fully open position.

Therefore, if this original release mechanism is adopted, even if a paper jam occurs while the original is restrained between the extract roller 6 and the press roller 7, the release work for removing the original is smooth. It will be possible to do. When the scanner cover 2 is closed after the document is released, the press roller 7 on the apparatus main body 1 side moves up to the rolling contact position with the extract roller 6 on the cover 2 side by the spring action of the leaf spring 10, and as shown in FIG. The document will be automatically returned to the indicated document ejection operation status.

[0016]

[Effect of the device]

 As described above, according to the document releasing mechanism of the present invention, when the cover is opened, the press roller which is elastically supported so as to be vertically movable in the apparatus main body is automatically driven by the cam continuously provided on the document discharge side of the scanner cover. Since the device is designed to be pushed in a position separated from the extractor roller, it can be seen when adopting a cover mounting structure that opens and closes the scanner cover coaxially with the exhaust roller provided on the document discharge side of the cover. It is possible to easily and surely solve a trouble that is inconvenient to cancel.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a facsimile apparatus showing an embodiment.

FIG. 2 is a cross-sectional view showing the cover open state of FIG.

[Explanation of symbols]

 1 Device Main Body 2 Scanner Cover 3 Original Setting Section 4 Paper Feeding Path 5 Original Ejecting Port 6 Extract Roller 7 Press Roller 7a Press Shaft 8 Bearing Member 8a Vertical Groove 9 Bracket 10 Leaf Spring 11 Cam 11a Cam Surface 11b Protrusion 12 Shaft Bearing O Axis Heart S Reading position C Gap

Claims (1)

[Scope of utility model registration request] 1. In a facsimile machine in which a scanner cover is opened and closed coaxially with an extract roller provided on the document discharge side of the apparatus body, a press roller rollingly contacted with the extract roller is elastically movable up and down in the apparatus body. An original release mechanism for a facsimile device, which is provided with a cam for supporting and pressing a press roller in tandem with the original discharge side of the scanner cover in conjunction with the cover opening operation.