JP4476674B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus in which a document feeding device having a function of automatically feeding a document on an upper surface of an apparatus main body in which an image forming unit is installed is provided.

  An image forming apparatus such as a copying machine is provided with an image forming unit that transfers a document image onto a sheet and a sheet storage unit that stores a sheet in a box-shaped apparatus body, and a document supply unit on an upper surface of the apparatus body. The feeding device is configured to be freely opened and closed. A contact glass is fitted into the upper surface opening of the apparatus main body, and an optical system for optically reading an original image through the contact glass is provided in the apparatus main body.

  In such an image forming apparatus, there are two types of methods for feeding a document on a contact glass, manual feeding and automatic feeding. In manual paper feeding, a document is placed on the contact glass by opening the document feeder. Subsequently, the document surface is scanned with the light from the light source through the contact glass while the document feeder is closed, and the document information is read with the reflected light. On the other hand, in automatic paper feeding, a bundle of documents is placed on a paper feed tray provided in the document feeder with the document feeder closed. When the start button is pressed in this state, the originals are fed one by one from the original bundle on the paper feed tray onto the contact glass and the original image is read.

  Therefore, in the case of manual feeding, it is not necessary to supply power to the document feeder, but in the case of automatic feeding, it is necessary to supply power to the drive mechanism for feeding the document onto the contact glass. Therefore, a power supply cord is extended from the apparatus main body to the document feeder.

  For example, those described in Patent Document 1 and Patent Document 2 are known as codes related to such a code. In Patent Document 1, a concave portion for accommodating codes is formed on the back surface of the apparatus main body, and various codes are collectively accommodated in the concave portion so that the back surface of the apparatus main body is brought into close contact with the wall surface at the installation position. It is described that the dead space can be eliminated (paragraph [0024]).

Further, in Patent Document 2, a recess is provided on the outer wall surface of the apparatus main body, and a cord interposed between the apparatus main body and the document presser is accommodated in the recess, and the cord in the recess is stopped with a hook. Therefore, it is described that the code can be prevented from greatly shaking during the opening / closing operation of the document feeder, and the rubbing against the wall of the code can be eliminated (paragraph [0014]).
JP-A-8-339103 Japanese Patent Laid-Open No. 11-202567

  By the way, in the thing of patent document 1, although the code | cord | chord on the apparatus main body side is accommodated in the recessed part provided in the said apparatus main body, it is prevented that a code | cord | chord protrudes out of an apparatus disorderly. Since the connection cord provided between the apparatus main body and the document presser is not considered (see FIG. 8 of Patent Document 1), the connection cord swings and interferes with the opening and closing operation of document suppression. Inconveniences such as rubbing against the wall surface and damage.

  On the other hand, in Patent Document 2, since the connection cord interposed between the apparatus main body and the document feeder is fixed to the apparatus body by the hook, the movement due to the opening / closing operation of the document feeder is performed. Although it is suppressed to a small extent, it is hard to say that it looks good because the cord is exposed to the outside (see FIG. 2 of Patent Document 2). In addition, the cord located between the uppermost hook of the apparatus main body and the document feeder remains exposed to the outside, so that it can be bent or restored to the original state by opening and closing the document feeder. There is a problem that it is not possible to reliably avoid the inconvenience of being easily damaged due to intermittent contact with the wall surface due to repeated or the operator being caught and the connection cord coming off.

  The present invention has been made in view of such a situation, and after eliminating the unsightly that the cord interposed between the apparatus main body and the document feeder is exposed to the outside, An object of the present invention is to provide an image forming apparatus capable of avoiding interference with the environment including the surrounding people.

An image forming apparatus according to an aspect of the present invention includes an apparatus main body including an image forming unit therein, and an openable and closable original feeding apparatus that supplies an original to the upper surface of the apparatus main body. The document feeding device is attached to the device main body so as to rotate about a rotation fulcrum provided on one side of the upper surface of the apparatus main body and to be freely opened and closed. A cord for electrically connecting the device and the device main body is wired, and the cord is covered with an exterior member that is detachably attached to the device main body, and the cord on the one side of the device main body is provided. In the vicinity, a first opening for passing the cord and a first locking portion provided at an edge of the first opening are provided, and a side surface of the document feeder corresponding to the one side. Includes a second opening for passing the cord, and the exterior portion Has a second locking portion that can be fitted from the outside into the first locking portion in a state in which the document feeding device is attached to the apparatus main body at the rotation fulcrum, and covers the first opening. A first portion and a size that fits into the second opening; the second feeding device is fitted into the second opening when the document feeding device is opened; and the second feeding device is closed when the document feeding device is closed. And a second portion that covers the opening .

  By adopting such a configuration, even when the document feeder provided on the upper surface of the apparatus main body is opened and closed, the document feeder and the apparatus main body wired near the rotation fulcrum with respect to the apparatus main body of the document feeder Since the cord that electrically connects the two is covered with an exterior member, this exterior member serves as a protective member, preventing interference and scratching of the protected cord and the surrounding environment, including people Is done.

In addition, the exterior member can be configured such that the first opening provided in the apparatus main body and the second opening provided in the document feeder are simply fitted into the first locking part from the outside. Both sides can be covered. Conversely, both the first opening and the second opening can be easily opened simply by removing the exterior member. Furthermore, the exterior member, because it has a second portion that fits relatively to said second opening in a state in which the document feeder is opened, while ensuring the good appearance view of the appearance, the exterior member is original feed Occurrence of an inconvenience that the document feeder cannot be opened due to interference with the feeder is prevented.

In the above structure, the first aperture, while being formed horizontally along the edge of the one side of the apparatus main body, the second opening is vertically formed, the outer member, these first It is desirable that the shape is set in an inverted T shape or L shape so as to correspond to the first opening and the second opening .

By forming the first opening horizontally along the edge of the apparatus main body in this way, the first opening can be easily passed through the cord drawn out from the apparatus main body, and can be changed by opening and closing operations. Accept the posture of the code to do without unreasonableness.

Further, since the exterior member is formed in an inverted T-shape or L-shape so that it can correspond to the first opening and the second opening, the exterior member is fed by opening the document feeding device. It is possible to easily escape into the opening on the apparatus side, and there is no problem that the document feeding apparatus cannot be opened due to interference with the exterior member.

The said structure WHEREIN: It is desirable to provide the connector in which the connecting terminal of the said cord is connected in the position which faces the said 1st opening in the said apparatus main body .

  If such a configuration is adopted, the document feeding device is connected to the connector via the substrate by connecting the connecting terminal of the cord extended from the document feeding device to the connector with the exterior member removed from the device main body. Electrically connected to the body.

According to the present invention , even if the document feeder provided on the upper surface of the apparatus main body is opened / closed, the cord that electrically connects both of the document feeders wired near the rotation fulcrum with respect to the apparatus main body Is covered with the exterior member, so that the inconvenience that the appearance is difficult to see compared with the case where the conventional cord is exposed to the outside is solved, and thereby the appearance of the image forming apparatus can be improved. .

  In addition, since the exterior member serves as a protective member, the code protected by the exterior member does not affect the surrounding environment such as the surrounding wall surface at the installation position of the image forming apparatus even when the document feeder is opened and closed. Therefore, it is possible to reliably prevent the occurrence of inconveniences such as damage to the cord due to such rubbing.

  In addition, the operator may be caught by a cord that is exposed to the outside, resulting in a poor connection between the connection terminal at the tip of the cord and the connection terminal of the main unit or document feeder, the cord may be disconnected, and the cord It is possible to reliably prevent the occurrence of problems such as disconnection.

  In addition, since the cord is covered with the exterior member, it is not necessary to perform a troublesome work of bundling a plurality of cords and inserting them into a predetermined tube (in case the cord is exposed to the outside, A plurality of cords are bundled and put in a tube), and the cost of parts can be reduced accordingly.

In addition, the exterior member can be configured such that the first opening provided in the apparatus main body and the second opening provided in the document feeder are simply fitted into the first locking part from the outside. Both sides can be covered. Conversely, both the first opening and the second opening can be easily opened simply by removing the exterior member. Furthermore, the exterior member, because it has a second portion that fits relatively to said second opening in a state in which the document feeder is opened, while ensuring the good appearance view of the appearance, the exterior member is original feed It is possible to prevent the occurrence of inconvenience that the document feeder cannot be opened due to interference with the feeder.

Also, the first opening, if Horizontal formed along the edge of the apparatus body, it is possible to be capable through reasonably code drawn from the first opening to the apparatus body, in the opening and closing operation The changing posture of the cord can be received without difficulty, and the original feeding device can be opened and closed to avoid unreasonable deformation of the cord covered with the exterior member and effectively prevent the cord from being damaged. it can.

Also, the exterior member, if the shape set to inverted T-shaped or L-shaped so that it may correspond to the first opening and the second opening, a document feeder side exterior member by the opening of the document feeder It becomes possible to escape into the opening, and it is possible to avoid the occurrence of a problem that the document feeder cannot be opened due to interference with the exterior member.

Further, by connecting the connecting terminal of the cord extended from the document feeding device to the connector on the device body side with the exterior member removed from the device body, the document feeding device is electrically connected to the device body. Therefore, the electrical connection work between the document feeder and the apparatus main body is facilitated, and the assembly efficiency of the image forming apparatus can be improved.

  First, the outline of the internal structure of a copying machine (image forming apparatus) 10 according to the present invention will be described with reference to FIG. FIG. 1 is a schematic explanatory view in cross-section showing an embodiment of the internal structure of a copying machine 10 according to the present invention. As shown in this figure, the copying machine 10 is provided with a document reading section 12 for reading a document image on the upper part of a box-shaped apparatus main body 11 and at a position below the document reading section 12 in the apparatus main body 11. The image forming unit 13 forms an image based on the image information of the document read by the document reading unit 12, and the fixing unit 14 performs a fixing process on the image formed by the image forming unit 13 and transferred to the paper. The sheet storage unit 15 that stores the transfer sheet is internally provided.

  The document reading unit 12 includes a document feeding device 20 provided on the upper surface of the apparatus main body 11 so as to be openable and closable, and an optical system unit disposed in the apparatus main body 11 so as to face the document feeding apparatus 20 via a contact glass 23. 121. The contact glass 23 reads a placed document contact glass 231 having a slightly smaller planar shape than the document feeding device 20 for reading a document surface of a placed document, and a document surface of an automatically fed document. A long and thin contact glass 232 for automatic paper feeding is provided in the front-rear direction.

On the upper surface of the apparatus main body 11 on the front side of the document reading unit 12, an operation panel 122 for inputting processing conditions regarding document reading, copying processing, and the like is provided. The operation panel 122 is disposed on the upper surface of the front portion of the processing apparatus main body 11, and is provided with a display panel, a numeric keypad (not shown), a start button, a mode switching key, and the like. Display panel or a liquid crystal display and various input information and output information is for or entering a touch-in operation for those selected among the displayed processing conditions. The numeric keypad is mainly for setting quantity information such as the number of copies. The mode switching key is for switching the mode of the copying machine 10, and the copying machine 10 can be used as a facsimile machine or a printer by pressing the mode switching key. Yes.

The document feeder 20 is attached to the apparatus main body 11 so as to be able to open and close by rotating around a connecting shaft 62 described later provided on one side of the upper surface of the apparatus main body. The document feeder 20 has a two-stage structure, and includes a document tray 21 for placing a document provided in an upper stage, and a document discharge in which an image-read original document provided in a lower stage is discharged. And a tray 22. On the left side of the document feeding device 20, a document feeding section 24 interposed between the document tray 21 and the document discharge tray 22 is formed, and an unillustrated document feeding provided in the document feeding section 24 is formed. The mechanism picks up one document at a time from the sheet bundle placed on the document tray 21 and supplies it to the contact glass 232 for automatic sheet feeding. Picked-up document, by Ri document surface in the optical system unit 121 via the automatic sheet feed contact glass 232 is adapted to be read while being moved. The original after the original image is read is discharged to the original discharge tray 22.

  The optical system unit 121 includes a light source (not shown), a plurality of mirrors, a lens unit, and a CCD (charge coupled device). The light from the light source is reflected by the original surface, and the reflected light is input to the CCD as original information through the mirror and the lens unit. The document information as an analog amount input to the CCD is converted into a digital signal and stored in a predetermined storage device as digital document information.

  The image forming unit 13 forms a toner image on the paper fed from the paper storage unit 15. In this embodiment, the image forming unit 13 sequentially arranges the image from the upstream side (the right side of the paper surface in FIG. 1) to the downstream side. A yellow unit 13Y, a magenta unit 13M, a cyan unit 13C, and a black unit 13K are provided.

  Each unit 13Y, 13M, 13C, 13K is provided with a photosensitive drum 131 and a developing device 132, respectively. Each photoconductive drum 131 is supplied with toner from a corresponding developing device 132 while rotating clockwise in FIG.

  A charging unit 133 is provided at a position on the upper left side in FIG. 1 of each photoconductor drum 131, and an exposure unit 134 is provided at a position on the upper right side in FIG. Each photosensitive drum 131 is uniformly charged at its peripheral surface by the charging unit 133, and a laser beam based on image data input from the document reading unit 12 is charged from each exposure unit 134. By irradiating the peripheral surface of 131, an electrostatic latent image is formed on the peripheral surface of each photosensitive drum 131. By supplying toner from the developing device 132 to the electrostatic latent image, a toner image is formed on the peripheral surface of the photosensitive drum 131.

  Further, a cleaning device 135 for removing residual toner on the peripheral surface of the photosensitive drum 131 and cleaning it is provided at the lower left position in FIG. 1 of each photosensitive drum 131. The peripheral surface of the photosensitive drum 131 cleaned by the cleaning device 135 goes to the charging unit 133 for a new charging process.

  Below each photoconductor drum 131, a transport belt 136 is provided so that the transport surface faces each photoconductor drum 131. The conveyor belt 136 is wound around a driving roller 137 provided slightly downstream of the black unit 13K and a driven roller 138 provided slightly upstream of the yellow unit 13Y. It is supposed to go around. The paper supplied from the paper storage unit 15 is guided by the circumference of the transport belt 136 and moves while abutting on the peripheral surface of the photosensitive drum 131 to be subjected to a transfer process.

  The fixing unit 14 performs a fixing process on the toner image on the paper transferred by the image forming unit 13, and includes a heat roller 141 and a pressure roller 142 that are opposed to each other in the vertical direction. The transfer-processed paper led out from the image forming unit 13 by the rotation of the conveyance belt 136 is fixed between the heat roller 141 and the pressure roller 142 while being heated and pressed, and the toner image is fixed. A stable color image is formed on the top. The sheet with the color image for which the fixing process has been completed is discharged through a discharge conveyance path 102 toward a discharge tray 101 protruding from the left side wall of the apparatus main body 11.

  The paper storage unit 15 includes a plurality of paper trays 151 that are detachably attached to the apparatus main body 11. Each sheet tray 151 stores a sheet bundle. Then, the paper P is fed out from the paper bundle of the selected paper tray 151 one by one by driving the pickup roller 152, and introduced into the image forming unit 13 through the paper feeding / conveying path 153.

  In the copying machine 10 of the present embodiment, a sheet reversing unit 16 for performing double-sided printing on the sheet P is provided in the apparatus main body 11. The sheet reversing unit 16 is interposed between the image forming unit 13 and the sheet storage unit 15 and temporarily stores the sheet P having the image after the fixing process on one side, and the fixing unit 14. And a switching guide 162 that distributes the paper P to one of the paper discharge conveyance path 102 and the return conveyance path 103 with respect to the paper P after the fixing process, and once discharged to the intermediate tray 161. A reverse roller pair 163 that discharges the paper P from the rear end side is provided.

  Then, the paper P once discharged to the intermediate tray 161 through the return conveyance path 103 and the reverse roller pair 163 by the switching operation of the switching guide 162 is discharged from the rear end side by the reverse rotation of the reverse roller pair 163. The sheet is directed to the paper feed conveyance path 153 through the reverse conveyance path 104. The paper P that has been turned upside down and supplied to the paper feed conveyance path 153 is supplied again to the image forming unit 13, whereby the back side is subjected to a transfer process.

  Hereinafter, a cover structure for the connection cord interposed between the apparatus main body 11 and the document feeder 20 will be described with reference to FIGS. 2 to 4 are rear perspective views of the upper portion of the copying machine. FIG. 2 shows a state in which the cover body 40 is removed from between the closed document feeder 20 and the apparatus body 11, and FIG. 4 shows a state in which the cover body 40 is mounted between the closed document feeder 20 and the apparatus main body 11, and FIG. 4 shows a state in which the document feeder 20 is opened with the cover body 40 mounted. Each is shown. FIG. 5 is a front perspective view of the upper portion of the copying machine, showing a state in which the document feeder 20 is opened. In these drawings, the XX direction is referred to as the width direction, and the YY direction is referred to as the front-rear direction. In particular, the -X direction is referred to as the left, the + X direction is referred to as the right, the -Y direction is referred to as the front, and the + Y direction is referred to as the rear. .

  As described above, the document feeder 20 has a basic configuration including the document tray 21, the document discharge tray 22, and the document feeding unit 24. The document feeder 20 includes a document feeder main body 30 having a document discharge tray 22 formed on the upper surface thereof.

  The document feeder main body 30 has a substantially rectangular shape in plan view, and has a front plate 31 (FIG. 5) having a predetermined vertical dimension provided on the front side and a pair of side plates 32 in the width direction provided on the left and right side surfaces. And a back plate portion 33 provided on the back side. The document discharge tray 22 is formed at the upper left position surrounded by the front plate 31, the pair of side plates 32, and the rear plate portion 33, and the document tray 21 is positioned above the document discharge tray 22. The document feeding section 24 is formed at the right position of the document tray 21 and the document discharge tray 22.

  Further, as shown in FIG. 5, the document feeder main body 30 has a document pressing plate 34 opposed to the above-described original document contact glass 231 on the bottom surface thereof, and is adjacent to the document pressing plate 34. A long automatic paper feed presser member 35 is provided in the longitudinal direction. The automatic paper feed pressing member 35 is provided so as to face the automatic paper feed contact glass 232, and the original fed into the automatic paper feed contact glass 232 from the document feeder 24 through the paper discharge port 241 This is for reliably facing the automatic feeding contact glass 232. A gap through which a document can pass is formed between the automatic paper feed pressing member 35 and the automatic paper feed contact glass 232 in a state where the document feeder 20 is closed.

The back plate 33 is slightly shorter than the width of the apparatus main body 11 and is elongated in the width direction. The back plate 331 (FIG. 2) is positioned slightly forward from the back of the apparatus main body 11, and It has a bottom plate 334 (FIG. 5) flush with the document pressing plate 34. The back plate 331 is provided with a pair of back plate notch windows 332 in the width direction formed by being cut out from the lower edge portion, and the back plate 331 is formed between the pair of back plate notch windows 332. A long escape window ( second opening) 333 is provided in the vertical direction formed by cutting out from the lower edge. The escape window 333 is provided to prevent a cover body 40 (to be described later) from interfering with the back plate 331 of the document feeder 20 when the document feeder 20 is opened.

  On the other hand, the contact glass 23 is mounted on the upper surface of the apparatus main body 11, and a glass support base 50 in which a light source for reading a document, a mirror unit, and a CCD or the like is mounted is fixed. The glass support 50 is formed in a rectangular shape having substantially the same dimensions as the apparatus main body 11 in plan view.

  In such a state that the glass support 50 is fixed to the upper surface of the apparatus main body 11, the upper surface of the apparatus main body 11 has a shelf plate portion extending over a substantially full width of the apparatus main body 11 at a rear portion of the rear plate 51 of the glass support 50. 110 is formed.

  Each back plate notch window 332 is provided with a gate-shaped member 36 that protrudes inward and outward from the left and right edge portions and the upper edge portion thereof. Each gate-shaped member 36 includes a pair of gate column portions 361 facing each other in the width direction, and a beam portion 362 constructed between the upper edge portions of the pair of gate column portions 361. By fixing the gate-shaped member 36 to the edge of the back plate notch window 332, the back plate 331 that is largely cut out to form the back plate notch window 332 is reinforced.

  The top plate 52 of the glass support base 50 is provided with a mounting recess 541 formed by slightly denting a position corresponding to each of the back plate notch windows 332 of the document feeder 20. A bracket 60 having a U-shape when viewed from the back is fixed to the bottom of each mounting recess 541 with screws or the like. The bracket 60 has a counter plate 61 (see FIG. 5) opposed to each other in the width direction, and a connecting shaft (rotation fulcrum) 62 that penetrates the pair of counter plates 61 in a sliding contact state. Both end portions of the connecting shaft 62 are rotatably fitted in holes formed in the pair of gate column portions 361 of the portal member 36 so that the document feeder 20 is connected to the connecting shaft 62 via the bracket 60. It is connected to the apparatus main body 11 so as to be rotatable around.

The top plate 52 of the document feeder 20, the rear plate 51 of the glass support base 50, and the shelf plate portion 110 of the apparatus body 11 are connected to the cord insertion opening 401 corresponding to the escape window 333 in a state where they are communicated. Is provided. The cord insertion opening 401 is for passing a connection cord C wired to connect the electrical device in the apparatus main body 11 and the electrical device in the document feeder 20 to each other. An angular opening 402 formed over the plate 52, and a long opening ( first opening) 403 that is formed in the upper surface of the shelf plate portion 110 so as to communicate with the angular opening 402 and that is long in the width direction. It has become.

  In FIG. 2, the connection cord C shows a state in which a plurality of various cords are bundled, but the connection cord C is not limited to being bundled, and is not particularly limited. It may be in a state where it is not bundled. The reason for this is that when the connection cord C is exposed to the outside as in the prior art, if a plurality of cords are not bundled, the cords are scattered and unsightly, and the operator is easily caught. Therefore, in order to prevent this, in the present invention, since the connection cord C is covered by the cover body 40 and unsightly or the like is eliminated, it is not particularly necessary to bundle them.

At the left and right ends of the long opening 403, a pair of widthwise side cover pieces 404 (first engaging portions) that are formed integrally with the rear plate 51 and the shelf plate portion 110 and have a substantially square shape in a side view. ) Is provided. On the facing surface of each side cover piece 404, a stepped portion 404a is formed in a state of being lowered by one step from the outer edge portion.

The cover body 40 according to the present invention is detachably attached to the cord insertion opening 401. FIG. 6 is a perspective view showing an embodiment of the cover body 40, where (A) is a view seen from the front surface side, and (B) is a view seen from the back side. In the present embodiment, the cover body (exterior member) 40 is formed of a hard synthetic resin material, and as shown in FIG. 6, is a long angle portion that is bent at a substantially right angle along a fold line extending in the longitudinal direction. 41 (first portion) , a short angle portion 42 projecting upward from the right side portion (left side portion in FIG. 6 (B)) of FIG. 6 (A) of the long angle portion 41, and the short length portion It consists of a standing part 43 (second part) standing on the angle part 42.

  The long angle portion 41 is mounted between the pair of side cover pieces 404 and has a length slightly shorter than the inner dimension between the pair of side cover pieces 404. The long angle portion 41 includes a vertical plate 411 and a horizontal plate 412 that is bent at a substantially right angle from an upper edge portion of the vertical plate 411. When the long angle portion 41 is fitted between the pair of side cover pieces 404, the edge portions of the vertical plate 411 and the horizontal plate 412 come into contact with the stepped portion 404 a (FIG. 2) of the side cover piece 404. As a result, the long angle portion 41 is fitted in between the pair of side cover pieces 404 as shown in FIG.

The horizontal plate 412 has a pair of hemispherical locking projections 413 projecting from one end face (the left end face in the example shown in FIG. 6A). Between the stop protrusions 413, there are provided grooving grooves 414 formed by being cut out obliquely from the upper edge of the horizontal plate 412. When the long angle portion 41 is fitted between the pair of side cover pieces 404, the locking projection 413 (second engaging portion) is pressed by pressing the horizontal plate 412 toward the side cover pieces 404. The long angle portion 41 is fitted between the side cover pieces 404 while elastically deforming the side cover pieces 404 outward. And the long angle part 41 with which the side cover piece 404 was mounted | worn is pressed and clamped by a pair of elastically deformed side cover pieces 404, and a mounting state is stabilized.

  When the long angle portion 41 is removed from between the side cover pieces 404, the tip of a tool such as a screwdriver may be inserted into the turning groove 414. As a result, the long angle portion 41 can be easily taken out from between the side cover pieces 404 by widening the pair of side cover pieces 404.

  The short angle portion 42 is for fitting into a corner opening 402 formed at a corner portion of the rear plate 51 and the top plate 52 in the cord insertion opening 401, and includes a vertical plate 421 and a horizontal plate 422. ing. The vertical plate 421 and the horizontal plate 422 are dimensioned to be flush with the rear plate 51 and the top plate 52, respectively, with the long angle portion 41 mounted between the pair of side cover pieces 404. Yes.

  The standing portion 43 is fitted into an escape window 333 formed on the back plate portion 33 of the document feeder 20, and is vertically long and flush with the vertical plate 421 of the short angle portion 42. A plate 431, a pair of side plates 432 in the width direction projecting from the vertical plate 431 so as to cross the horizontal plate 422 of the short angle portion 42, and the upper edges of the vertical plate 431 and the pair of side plates 432. The outer dimension between the pair of side plates 432 including the top plate 433 is set slightly shorter than the width dimension of the escape window 333 of the document feeder main body 30.

  The upright portion 43 is set so that the vertical dimension is slightly shorter than the vertical dimension of the escape window 333, whereby the long angle portion 41 is mounted between the pair of side cover pieces 404 in FIG. As shown, the front edge is fitted into the escape window 333.

  Further, the top plate 433 of the standing portion 43 has an inclined surface 433a inclined downward toward the upper edge portion of the vertical plate 431, and the document feeder in a closed state due to the presence of the inclined surface 433a. Even when 20 (FIG. 3) rotates around the connecting shaft 62 and is opened, the upper edge of the standing portion 43 does not interfere with the upper edge of the escape window 333.

  In the present invention, the connection cord C that electrically connects the electrical device in the apparatus main body 11 and the electrical device in the document feeder 20 passes through the cord insertion opening 401 as shown in FIG. In this state, the cover body 40 is attached to the cord insertion opening 401 as shown in FIG. Therefore, the connection cord C is completely invisible by being covered with the cover body 40, and the appearance of the copying machine 10 is deteriorated because the connection cord C is exposed to the outside. Does not occur.

  Further, even if the closed document feeder 20 is opened, the escape window 333 of the document feeder 20 only covers the standing portion 43 of the cover body 40, and the back plate of the document feeder 20 The section 33 does not interfere with the cover body 40, and not only can the normal opening / closing operation of the document feeder 20 be ensured, but also whether the document feeder 20 is in a closed state or an open state. Therefore, the connection cord C is not exposed to the outside.

  In the example shown in FIG. 2, the electrical connection between the various devices in the document feeder 20 and the various devices in the apparatus main body 11 is arranged so as to face the long opening 403 in the apparatus main body 11. This is performed via the substrate B. Specifically, the connector B1 is provided on the upper edge surface of the substrate B at a desired position in the long opening 403 of the apparatus main body 11, and the connection cord C extended from the document feeder 20 is provided. A connection terminal C1 is provided at the tip of the connector, and connection and release operations of the connection terminal C1 with respect to the connector B1 are performed in a state where the cover body 40 is opened.

  Thus, by arranging the board B in the apparatus main body 11 so that the connector B1 is located directly under the long opening 403, the cover body 40 can be connected and disconnected between the connection cord C and the board B. As compared with the conventional electrical connection structure in which the connection operation or the like cannot be performed unless the exterior plate or the like of the apparatus main body 11 is removed, the assembly work and maintenance work of the copying machine 10 can be performed. Improves.

  Further, in the present embodiment, a blindfold 53 as shown in FIG. 5 is erected on the rear side of the top plate 52 of the glass support base 50 and on the portion facing the erected portion 43 of the cover body 40. The inside of the standing portion 43 of the cover body 40 is hidden by the blindfold 53 in a state where the document feeder 20 is opened. By providing the blindfold 53, the connection cord C in the cover body 40 cannot be seen from the operator when the document feeder 20 is opened.

As described above in detail, the copying machine 10 of the present invention includes an apparatus main body 11 including an image forming unit 13 therein, and an openable / closable original feeding apparatus 20 that supplies an original to the upper surface of the apparatus main body 11. A connection cord C that electrically connects the document feeder 20 to the apparatus main body 11 of the document feeder 20 is wired, and the connection cord C is covered by a cover body 40. Therefore, the inconvenience that the external appearance is difficult to see compared with the case where the conventional connection cord C is exposed to the outside is eliminated, and thereby the appearance of the copying machine 10 can be improved.

  Further, since the cover body 40 serves as a protective member, even if the document feeder 20 is opened and closed, the connection cord C protected by the cover body 40 is not limited to the wall surface around the installation position of the copying machine 10, etc. Since rubbing against the surrounding environment is prevented, it is possible to reliably prevent the occurrence of inconvenience that the connecting cord C is damaged by such rubbing.

  Further, the operator is caught by the connection cord C exposed to the outside, and the connection state between the connection terminal at the tip of the connection cord C and the connection terminal of the apparatus main body 11 or the document feeder 20 is poor, or the connection cord C is disconnected. In addition, it is possible to reliably prevent the occurrence of problems such as disconnection of the connection cord C.

  In addition, since the connection cord C is covered by the cover body 40, there is no need to perform the troublesome work of bundling a plurality of cords and inserting them into a predetermined tube, which has been conventionally performed. The efficiency of the assembling work of the minute copying machine 10 can be achieved.

  In addition, a long opening 403 through which the connection cord C passes is provided on the upper surface of the apparatus main body 11 on the back side of the document feeding apparatus 20, while the back surface of the document feeding apparatus 20 corresponds to the long opening 403. An escape window 333 through which the connection cord C passes is provided, and the cover body 40 covers the long opening 403 and has a shape set so as to be relatively fitted into the escape window 333 in a state where the document feeder 20 is opened. Therefore, the cover body 40 has a long opening 403 through which a connection cord C provided on the back side of the document feeder 20 on the upper surface of the apparatus main body 11 and a connection provided on the back surface of the document feeder 20. By covering both the escape windows 333 through which the code C passes, it is possible to eliminate the unsightly appearance of the escape windows 333 and the long openings 403 exposed to the outside.

  Further, since the cover body 40 is set so as to be relatively fitted into the escape window 333 in a state in which the document feeding device 20 is opened, the cover body 40 is secured with good appearance appearance. It is possible to prevent the inconvenience that 40 cannot interfere with the document feeder 20 and the document feeder 20 cannot be opened.

  Further, the long opening 403 is formed in a horizontally long shape along the edge of the apparatus main body 11, while the escape window 333 is formed in a vertically long shape, and the cover body 40 is formed in the long opening 403 and the escape window 333. Since the shape is set in an inverted T-shape or L-shape so as to be compatible, the long opening 403 can be easily passed through the connection cord C drawn from the inside of the apparatus main body 11, and A change in the posture of the connection cord C that is changed by the opening / closing operation can be accepted without difficulty, and the document feeding device 20 is opened / closed to avoid an unreasonable deformation of the connection cord C covered by the cover body 40, Damage to the connection cord C can be effectively prevented.

  Further, since the cover body 40 is formed in an inverted T-shape or L-shape so that it can correspond to the long opening 403 and the escape window 333, the cover body 40 is opened by opening the document feeding device 20. Can be allowed to escape into the escape window 333, and the occurrence of a problem that the document feeder 20 cannot be opened due to interference with the cover body 40 can be avoided.

  Further, since the connector B1 of the control board B to which the connection terminal C1 of the connection cord C is connected is provided in the apparatus main body 11 at a position facing the long opening 403, the cover body 40 is attached to the apparatus main body 11. In the state of being removed from the document feeder 20, the connection terminal C1 of the connection cord C extended from the document feeder 20 is connected to the connector B1, so that the document feeder 20 is electrically connected to the apparatus main body 11 via the substrate B. And the assembly efficiency of the copying machine 10 can be improved.

  The present invention is not limited to the above embodiment, and includes the following contents.

  (1) In the above embodiment, the cover body 40 is detachably attached to the apparatus main body 11 side. Instead, the cover body 40 is detachably attached to the document feeding apparatus 20 side. You may make it wear. However, in this case, it is necessary to provide an escape window corresponding to the escape window 333 of the document feeder 20 on the processing apparatus main body 11 side.

  (2) In the above embodiment, a bellows type may be adopted as the cover body 40. By doing so, it becomes possible to cope with the opening and closing of the document feeding device 20 by the expansion and contraction of the bellows. Therefore, the covering structure of the connection cord interposed between the apparatus main body 11 and the document feeding device 20 is provided. It can be simple.

  (3) In the above embodiment, the cover body 40 is provided between the pair of back plate notch windows 332 in the document feeder main body 30. However, in the present invention, the cover body 40 is the document feeder main body. 30 is not limited to being provided between the pair of back plate notch windows 332, and may be provided at a position outside one of the back plate notch windows 332.

1 is a schematic explanatory view in cross section showing an embodiment of an internal structure of a copying machine according to the present invention. FIG. 5 is a rear perspective view of the upper portion of the copier, showing a state where the cover body is removed from between the closed document feeder and the apparatus main body. FIG. 2 is a rear perspective view of the upper part of the copying machine, showing a state where a cover body is mounted between the closed document feeder and the apparatus main body. FIG. 6 is a rear perspective view of the upper portion of the copying machine, showing a state in which the document feeder main body is opened with the cover body mounted. FIG. 3 is a front perspective view of the upper part of the copying machine, showing a state where the document feeder is opened. It is a perspective view which shows one Embodiment of a cover body, (A) is the figure seen from the surface side, (B) is the figure seen from the back surface side.

DESCRIPTION OF SYMBOLS 10 Copying machine (image forming apparatus) 101 Paper discharge tray 102 Paper discharge conveyance path 103 Return conveyance path 104 Reverse conveyance path 11 Apparatus main body 110 Shelf board part 12 Document reading part 121 Optical system unit 122 Operation panel 13 Image formation part 13Y For yellow Unit 13M magenta unit 13C cyan unit 13K black unit 131 photosensitive drum 132 developing device 133 charging unit 134 exposure unit 135 cleaning device 136 transport belt 137 driving roller 138 driven roller 14 fixing unit 141 heat roller 142 pressure roller 15 paper Storage unit 151 Paper tray 152 Pickup roller 153 Paper feed conveyance path 16 Paper reversing unit 161 Intermediate tray 162 Switching guide 163 Reversing roller pair 20 Document feeding device 21 Document tray 22 Document discharge tray 23 Emissions tact glass 231 placed document contact glass 232 for contact automatic sheet glass 24 document feeding unit 30 original feeding apparatus main body 31 front plate 32 side plate 33 rear plate 331 back plate 332 back plate cutout window 333 missed the window (second Opening)
34 Document holding plate 35 Automatic paper feed holding member 36 Portal member 361 Gate pillar 362 Beam 40 Cover body (exterior member)
401 Cord insertion opening 402 Square opening 403 Long opening ( first opening)
404 Side cover piece 404a Stepped portion 41 Long angle portion 411 Vertical plate 412 Horizontal plate 413 Locking projection 414 Groove groove 42 Short angle portion 421 Vertical plate 422 Horizontal plate 43 Standing portion 431 Vertical plate 432 Side plate 433 Top plate 433a Inclined Surface 50 Glass support base 51 Rear plate 52 Top plate 53 Blindfold piece 60 Bracket 61 Opposing plate 62 Connecting shaft (rotation fulcrum)
C Connection cord C1 Connection terminal B Board B1 Connector

Claims (3)

An image forming apparatus comprising: an apparatus main body provided with an image forming unit therein; and an openable and closable document feeding device that feeds an original on the upper surface of the apparatus main body. A cord that pivots around a pivotal fulcrum provided on one side of the upper surface of the main body and is attached to the apparatus main body so as to be freely opened and closed, and a cord that electrically connects the document feeder and the apparatus main body in the vicinity of the pivotal fulcrum. Wired, and the cord is configured to be covered by an exterior member that is detachably attached to the apparatus main body ,
In the vicinity of the one side of the apparatus main body, a first opening for passing the cord and a first locking portion provided at an edge of the first opening are provided.
A second opening for passing the cord is provided on a side surface of the document feeder corresponding to the one side.
The exterior member is
A first portion that covers the first opening and has a second locking portion that can be fitted into the first locking portion from the outside in a state where the document feeding device is attached to the apparatus main body at the rotation fulcrum. When,
The second opening has a size that fits into the second opening, and fits into the second opening when the document feeder is open, and covers the second opening when the document feeder is closed. An image forming apparatus comprising: two parts . The first opening is formed horizontally long along the edge of the one side of the apparatus main body, while the second opening is formed vertically long, and the exterior member includes the first opening and the first opening . The image forming apparatus according to claim 1 , wherein the image forming apparatus is set in an inverted T-shape or L-shape so as to correspond to two openings. Wherein at a position facing the first opening, the image forming apparatus according to claim 1 or 2, wherein the connector connecting terminal of said cord is connected is provided in the apparatus main body.

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