JPH06167838A - Image forming device - Google Patents

Abstract

(57) [Summary] [Purpose] Easily attach and detach the original cover from the copier body. [Structure] A cover side connector 54 is attached to a lower portion of a hinge 50 of a document cover 35. The main body side connector 53 is installed in the guide hole 56 of the copying machine main body 10. The main body side connector 53 is attached to the slide cylinder 55 that moves up and down the guide hole 56. By connecting the connectors 53 and 54,
The document cover 35 is supported by the copying machine main body 10 so as to be openable and closable, and the document feeding device 11 is also electrically connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a connector for electrically connecting a document feeder and a main body in an image forming apparatus such as a copying machine provided with a document feeder integrated with a document cover. .

[0002]

2. Description of the Related Art In a copying machine in which an optical system is moved with respect to a document placed on an exposure glass to perform exposure, the fixed optical system is used to convey the document to its exposure section to perform exposure. There is a document equipped with a document feeder for performing the above.

Such a copying machine, as shown in FIG.
Original cover 3 for exposure glass 2 on top of copier body 1
Is openable and closable, and a document feeder 3 is integrally provided on the document cover 3.

The electrical connection between the document feeder 4 and the main body 1 of the copying machine is performed by a cord 5 drawn from the main body 1 of the copying machine.
As shown in FIG. 9, the connector 6 mounted on the copying machine body 1 and the connector 7 on the document cover side are used to connect the connectors by the operation of mounting the document cover 3 on the copying machine body 1. It is taken.

[0005]

When a drawer connector is used for the above-mentioned electrical connection, play is provided in the connector mounting so that the connector can be connected smoothly, but a sufficient amount of movement is ensured. It has not been.

Therefore, when the document cover is opened and a thick document such as a book is copied, the connector itself does not move up and down, so that the document cover is tilted to hold the document or the document cover can be moved up and down. In addition, the structure of the hinge of the document cover must be extendable. As a result, the pressing of the document becomes incomplete, the hinge has a complicated structure, and the cost increases.

Furthermore, when the document cover is attached to or detached from the main body of the copying machine, the connector must be separated at the same time as the original cover is removed from the main body of the copying machine. The burden of removing the cover is significantly increased, workability is greatly reduced, and the connector may be damaged during removal.

In view of the above, it is an object of the present invention to provide an image forming apparatus which facilitates electrical connection between the document cover and the main body side and improves workability of attaching and detaching the document cover.

[0009]

As shown in FIGS. 1 and 2, an object cover 35 is provided on an upper portion of an image forming apparatus main body 10 via a hinge 50 so as to be openable and closable, and an object cover is provided. In the image forming apparatus in which the document conveying device 11 is integrally provided on the reference numeral 35, the hinge 50 is detachable from the image forming device main body 10 and is electrically connected to the image forming device main body 10 with the document conveying device 11. A main body side connector 53 is provided for connecting the main body side connector 53 to the main body side connector 53, and a main body side connector 53 is provided in the image forming apparatus. It is supported by the main body 10 so as to be vertically movable.

The hinge 50 is provided with a lever 70 for moving the cover side connector 54 upward to separate it from the main body side connector 53.

The main body side connector 53 has a hinge 50.
It is possible to move by 5 mm or more in the state of being connected to.

[0012]

In the above means for solving the above problems, the cover side connector 54 and the main body side connector 53 are connected during use, the original feeding device 11 is electrically connected to the image forming apparatus main body 10, and the original document cover 35 is image formed. It is supported so as to be openable and closable with respect to the apparatus body 10.

When a thick document D is copied, the hinge 50 rises as the document cover 35 rises from the upper surface of the main body 10. At this time, the main body side connector 53 also rises to prevent the connectors 53 and 54 from separating.

Next, when removing the document cover 35 from the image forming apparatus main body 10, the document cover 35 is lifted,
By pulling the hinge 50, the cover side connector 5
4 and the main body side connector 53 are separated, and the original cover 35
Is removed from the image forming apparatus main body 10.

Here, when the lever 70 is used, the cover side connector 54 is lifted up while the body side connector 53 is pushed down by operating the lever 70, and the connectors can be separated by a simple operation.

[0016]

【Example】

(First Embodiment) FIG. 1 is a view showing a connecting portion between a document cover and a copying machine main body according to the first embodiment of the present invention, FIG. 2 is a sectional view of the upper portion of the copying machine, and FIG. FIG. 4 is a diagram showing the original cover of FIG. 4, and FIG. 4 is an overall configuration diagram of the copying machine.

In the copying machine of this embodiment, as shown in FIG. 4, an original conveying device 11 is installed on the upper part of the copying machine main body 10.

A photoconductor drum 12 is rotatably installed in the center of the inside of the copying machine main body 10, and a charging charger 13, an eraser lamp 14, a developing device 15, a transfer charger 16 and a cleaning device are provided on the outer periphery of the photoconductor drum 12. 17,
A charge eliminating lamp is provided and constitutes a copying process section. Further, a fixing device 18 is disposed on the paper discharge side of the photoconductor drum 12.

A paper feed cassette 19 is detachably attached to the lower portion of the copying machine main body 10. A paper feed roller 20 is arranged above the paper feed cassette 19, and the paper feed roller 20 is rotationally driven by a paper feed drive motor. The paper stored in the paper feed cassette 19 is fed by the paper feed roller 20.
Thus, the sheets are sequentially fed from the uppermost portion and selectively delivered to the transport path 21 one by one.

A plurality of sheet conveying rollers 22 are arranged in the conveying path 21, and these conveying rollers 22 are rotationally driven in conjunction with the sheet feeding roller 20 by a conveying driving motor. A registration roller 23 is arranged on the front side of the photosensitive drum 12.

The paper discharge roller 2 is provided on the paper discharge side of the fixing device 18.
4 is arranged, and a paper discharge tray 25 is provided in front of it.

An exposure glass 30 is disposed on the upper surface of the copying machine main body 10 so as to face the original conveying device 11, and the exposure glass 3 is exposed.
An optical system 31 is arranged below 0. The optical system 31 is
Copy lamp 3 for exposing an original on the exposure glass 30
2, a plurality of mirrors 33a to 33f and a lens 34 are provided, and the copy lamp 32 and the mirrors 33a to 33c can be freely scanned by a motor.

Above the exposure glass 30, the copying machine body 10 is provided.
Original cover (OC) 35 that is openably and closably supported with respect to
And a document pressing mat 36 is attached to the lower surface of the document cover 35. The document cover 35 is provided with an open / close switch for detecting the open / close state.

The document feeder 11 is mounted on the left side of the document cover 35, and uses a document tray 37 that uses the upper surface of the document cover 35 and a document D from the document tray 37.
Induction roller 38 and paper feed roller 39 for feeding paper
A guide plate 40 that guides the document D to the exposure unit A on one side of the exposure glass 30, a platen roller 41 that conveys the document D on the exposure unit A, and the exposed document D.
2 and a sheet discharge roller 43 that discharges the sheet. These are a body cover 44 that can be opened and closed with respect to the document cover 35.
It is decorated in.

The platen roller 41 is rotatably supported on one end surface of the exposure glass 30 and can be rotated in the forward and reverse directions by a stepping motor. Then, the driven roller 45
Are arranged in contact with the platen roller 41. A regulating guide 46 is provided below the platen roller 41 so as to be vertically movable.

The call-in roller 38 is vertically movably connected to an upper paper feed roller 39 via an arm. A solenoid for bringing the call-in roller 38 into and out of contact with the document tray 37 is provided. The take-in roller 38 comes into contact with the original, and the original can be fed.

As shown in FIGS. 1 and 2, a hinge 50 is attached to the rear side of the document cover 35 via a shaft 51, and a lower portion of the hinge 50 is a connecting portion which is detachably attached to the copying machine main body 10. 52. A body-side connector 5 for electrically connecting to the document feeder 11 to the copying machine body 10
3 is provided, and a cover-side connector 53 that is joined to the body-side connector 53 is provided at the joining portion 52 of the hinge 50. The body-side connector 53 is located above and below the manuscript cover 35 when it is joined to the manuscript cover 35. It is supported by the main body 10 of the copying machine so that it can move vertically.

The hinge 50 is formed in a vertically long shape,
A recess is formed in the center of the coupling portion 52, and the cover-side connector 54 is arranged in this recess.

The main body side connector 53 is mounted on the upper portion of the slide cylinder 55 which stores the cord therein, and the main body of the copying machine 1
It is arranged inside a guide hole 56 formed on the rear side of the upper surface of 0. An opening 57 is formed at the bottom of the guide hole 56, and the slide cylinder 55 penetrates the opening 57 and moves up and down in the guide hole 56.

Upper and lower stoppers 58, 59 are provided in the vicinity of the connector and the lower end of the slide cylinder 55, respectively, and a spring 60 for urging the slide cylinder 55 downward is interposed between the lower stopper 59 and the guide hole 56. Has been done. The upper stopper 58 contacts the bottom of the guide hole 56 to prevent the slide cylinder 55 from falling from the opening 57.

The length of the slide cylinder 55 protruding below the guide hole 56 is set to 5 mm or more in consideration of the thickness of the original placed on the exposure glass 30.

In the above structure, when the document cover 35 is attached to the copying machine main body 10, the hinge 50 of the document cover 35 is attached.
Is inserted into the guide hole 56. At this time, since the slide cylinder 55 is pushed down by the spring 60, the main body side connector 53 is located at the bottom of the guide hole 56.

When the original cover 35 reaches the upper surface of the copying machine main body 10, the connecting portion 52 of the hinge 50 is also connected to the guide hole 5.
Reach the bottom of 6. Then, the cover side connector 54 and the main body side connector 53 are connected to each other, the document feeding device 11 is electrically connected to the copying machine body 10, and the document cover 35 is supported so as to be openable and closable with respect to the copying machine body 10. .

When a thick original D is copied, the original cover 35 is lifted from the exposure glass 30 as shown in FIG.
Along with this, the hinge 50 rises along the guide hole 56. At this time, since the slide cylinder 55 has a sufficient length with respect to the amount of rise of the hinge 50, the slide cylinder 55 is lifted up against the spring 60, and the connector 53,
54 is prevented from separating.

Next, when removing the document cover 35 from the copying machine main body 10, the document cover 35 is lifted and the hinge 50 is pulled. Then, the cover side connector 54 and the main body side connector 53 are separated, and the original cover 35 is detached from the copying machine main body 10.

As described above, the original cover provided with the original conveying device can be easily attached to and detached from the main body of the copying machine only by attaching and detaching the hinge, and at the same time, the electrical connection with the original conveying device can be performed. , The workability can be greatly improved.

Further, when the hinge moves up and down in conjunction with the document cover, it has a connector structure which works in conjunction with the up and down movement of the hinge, as compared with the case where a normal drawer type connector is used. It is not necessary to separately provide an up-and-down moving mechanism between the mounting portion and the hinge, and it is possible to significantly reduce the cost.

(Second Embodiment) FIG. 5 is a view showing a connecting portion between a document cover and a copying machine main body according to a second embodiment of the present invention, and FIG. 6 is a detailed view of a connector separating lever.

In the first embodiment, the original cover 35 is used.
When the is removed from the copying machine main body 10, it may not be possible to easily separate the strongly connected connectors 53 and 54.
Therefore, in the present embodiment, the hinge 50 is provided with the lever 70 for moving the cover side connector 54 upward to separate it from the main body side connector 53.

As shown in FIGS. 5 and 6, the lever 70 is formed in a substantially L shape, and the tip 70a of the short side is supported by the lower portion of the hinge 50 so as to be rotatable around an axis 71, and the lower end 70b of the lever 70. Is in contact with the upper stopper 58 of the slide cylinder 55 and serves as a fulcrum. The upper end 70c of the long side projects from the hinge 50.

As a result, when the document cover 35 is lifted, if the upper end 70c of the lever 70 is pulled in the direction of the arrow X, the lever 70 rotates about the lower end 70b. Then, the tip 70a of the lever 70 moves upward, and the slide cylinder 55 is pushed down to cover the connector 54 on the cover side.
The main body side connector 53 is separated.

As described above, since the connectors which are fastened can be separated by a simple lever operation, the manuscript cover can be easily removed, the connectors are not forcibly separated, and the connectors are prevented from being damaged. it can.

(Third Embodiment) FIG. 7 is a detailed view of a connector separating lever according to a third embodiment of the present invention.

In this embodiment, a through hole 80 is formed in the hinge 50, and a support rod 81 is vertically movably inserted in the through hole 80. The cover side connector 54 is attached to the lower end of the support rod 81, and the head 82 of the support rod 81 projects from the hinge 50.

Above the hinge 50 of the document cover 35,
A concave portion 83 is formed and a lever 84 for lifting the support rod 81 is installed. One end of the lever 84 is rotatably supported by the shaft 51 of the hinge 50, and the head portion 82 of the support rod 81 penetrates and is engaged with the intermediate portion of the lever 84.

As a result, when the original cover 35 is lifted and the other end of the lever 84 is pulled up, the supporting rod 81
The head 82 is caught and lifted. Then, the support rod 81 rises, and the connectors 53 and 54 also try to rise, but the upper stopper 58 of the slide cylinder 55 moves to the hinge 50.
As a result, the cover-side connector 54 is separated from the main-body-side connector 53 because the rise is restricted.

The present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

[0048]

As is apparent from the above description, according to the present invention, the hinge for opening and closing the original cover is detachably attached to the main body of the image forming apparatus and electrically connected to the original conveying apparatus. The main body side connector and the cover side connector coupled to the main body side connector are provided, and the main body side connector is supported by the image forming apparatus main body so as to be vertically movable. The workability can be greatly improved because it can be easily performed only by attaching and detaching the hinge, and at the same time, it is electrically connected to the document feeding device.

Further, even when the hinge moves up and down in conjunction with the original cover such as when a thick original is placed, the main body side connector can be moved up and down while being connected to the hinge, and it is necessary to provide a vertical movement mechanism for the hinge and the connector. Disappears and moreover, 5m
Since it can be moved by m or more, the risk of disconnecting the connector can be eliminated.

The hinge is provided with a lever for moving the cover-side connector upward to separate the cover-side connector from the main-body-side connector, so that the fastened connector can be separated by a simple lever operation, and the original cover can be removed. The work is facilitated, the connector is not forcibly separated, and the connector can be prevented from being damaged.

[Brief description of drawings]

FIG. 1 is a diagram showing a connecting portion between a document cover and a copying machine main body according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the upper part of the copying machine.

FIG. 3 is a diagram showing a document cover when a thick document is placed.

FIG. 4 is an overall configuration diagram of a copying machine.

FIG. 5 is a view showing a connecting portion between a document cover and a copying machine main body according to a second embodiment of the present invention.

FIG. 6 is a detailed view of a lever for separating a connector.

FIG. 7 is a detailed view of a connector separating lever according to a third embodiment of the present invention.

FIG. 8 is a perspective view of an upper portion of a conventional copying machine.

FIG. 9 is a diagram showing connection of a conventional connector.

[Explanation of symbols]

 10 Copy Machine Main Body 11 Original Transfer Device 35 Original Cover 50 Hinge 52 Coupling Section 53 Main Body Side Connector 54 Cover Side Connector 55 Slide Tube 56 Guide Hole

Claims (3)

[Claims] 1. An image forming apparatus in which a document cover is provided on an upper portion of a main body of the image forming apparatus so as to be openable and closable via a hinge, and a document conveying device is integrally provided on the document cover
The hinge is detachable from the image forming apparatus main body, the image forming apparatus main body is provided with a main body side connector for electrically connecting to the document feeder, and the hinge is connected to the image forming apparatus main body. An image forming apparatus comprising a cover-side connector coupled to a main body side connector, the main body side connector being supported by an image forming apparatus main body so as to be vertically movable. 2. The image forming apparatus according to claim 1, wherein the hinge is provided with a lever for moving the cover side connector upward to separate the cover side connector from the main body side connector. 3. The image forming apparatus according to claim 1, wherein the main body side connector is 5 m when connected to a hinge.
An image forming apparatus, wherein the image forming apparatus is movable for m or more.