JPH0561155U - 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 main body 1 so as to be vertically movable, and a press roller is provided on the apparatus main body 1 side in conjunction with an opening operation of a scanner cover 2. A lever-shaped pressing member 11 for pressing down 7 is provided.

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 releasing 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 main body. It is elastically supported so that it can move up and down inside, and a pressing member that presses down the press roller in conjunction with the opening operation of the scanner cover is provided on the device body side.

[0008]

[Action]

 In this document release mechanism, when the scanner cover is opened, the pressing member provided on the main unit side of the device forcibly pushes down the press roller elastically supported in the main body to move up and down to form a gap between the two. To do. 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.

On the premise of elastically supporting the press roller 7 on the apparatus body 1 side in the above-described manner, the press roller 7 is linked to the apparatus body 1 side in conjunction with the opening operation of the scanner cover 2. A pressing member 11 for pressing down is provided. The push-down member 11 is a lever-like member whose base end is fixed to a pin shaft 12 mounted inside the apparatus main body 1 and whose tip curved portion is hung on the press shaft 7a.

The lever-shaped pressing member 11 connects the pin shaft 12 on the main body 1 side and the pin shaft 13 attached to the document insertion side of the scanner cover 2 with a link 14, and presses the pin shaft 12 near the pin shaft 12. When the connecting rod 15 is passed over the member 11 and the link 14 to open the scanner cover 2, the scanner cover 2 swings around the pin shaft 12 in conjunction with the turning motion of the link 14 and abuts on the press shaft 7a. The lower surface of the curved tip portion is configured to forcibly push it down. However, the pin shaft 12 forming the swinging fulcrum of the push-down member 11 is provided in the apparatus main body 1 so that the scanner cover 2 can be reasonably rotated around the axis O of the extract roller 6 which contacts the opening / closing fulcrum when the cover is opened. It is rotatably supported by the L-shaped long hole 16 provided.

In addition, at a 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 which are also paired. A roller or the like is attached (not shown).

When the scanner cover 2 is opened with such a document release mechanism, as shown in FIG. 2, the pressing member 11 provided on the apparatus main body 1 side moves along the long hole 16 along the long hole 16. While shifting, the link 14 connected to the scanner cover 2 swings downward around the pin shaft 12 through the turning motion of the link 14, and the tip curved portion of the press roller 7 elastically supported in the main body 1 is moved. It comes into contact with the upper surface of the press shaft 7a and forcibly pushes it downward, thereby forming a gap C between them, which increases as the cover opening increases.

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 releasing operation for removing the original is smooth. It can be done. When the scanner cover 2 is closed after the document is released, the pressing member 11 is swung upward by the reverse operation of the opening, and at the same time, the press roller 7 is actuated by the leaf spring 10 to extract the cover 2 side. The roller is raised to the rolling contact position with the tracker 6 and automatically returns to the original discharge operation state shown in FIG.

It should be noted that the pressing member provided on the apparatus main body side may be any one as long as it has a function of pressing the press roller in conjunction with the opening operation of the scanner cover. There is room for design changes to the attachment structure or the interlocking mechanism with the cover.

[0018]

[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 elastically supported in the apparatus body so as to be movable up and down automatically becomes the extract roller by the pressing member added to the apparatus body side. Since it is designed so that it is pushed to the open position, the inconvenience of releasing the original document seen when adopting the cover mounting structure that opens and closes the scanner cover coaxially with the extract roller provided on the original discharge side of the cover It is possible to accurately eliminate the problem that becomes.

[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 Document Setting Section 4 Paper Feeding Path 5 Document Ejecting Port 6 Extract Roller 7 Press Roller 7a Press Shaft 8 Bearing Member 8a Vertical Groove 9 Bracket 10 Leaf Spring 11 Lever Pressing Member 12 Pin Axis 13 Pin Axis 14 Link 15 Continuous rod 16 Long hole O Shaft center S Reading position C Clearance

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. A document releasing mechanism for a facsimile device, which is provided with a pressing member that supports and presses down the press roller in association with the opening operation of the scanner cover on the device body side.