JP2015065667A - Document reading device and image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document reading device and image forming apparatus capable of facilitating the execution of opening and closing operation.SOLUTION: A document reading device 16 includes a document reading device body 102, and an opening and closing body 104 configured to be rotated with respect to the document reading device body 102 at one end and to be openable and closable at the other end. The document reading device 16 further includes a dent part 106a that is provided at the other end of the opening and closing body 104 and dented on the cross section of the opening and closing body 104 and perpendicular to the rotation axis direction of the opening and closing body, while inclined so that the depth of the dent becomes smaller toward the upper end and bottom end in the thickness direction of the opening and closing body 104; and a grip part 106 that continues to the end of the inclination of the dent.

Description

  The present invention relates to a document reading apparatus and an image forming apparatus.

  Patent Document 1 discloses an image forming apparatus including a main body device of an image forming apparatus including a document reading unit and an image forming unit, and an automatic document feeder that can be opened and closed with respect to a document placement surface of the document reading unit. An image forming apparatus is disclosed in which handles for opening and closing the automatic document feeder are provided at a plurality of different positions on the exterior member of the automatic document feeder.

  Patent Document 2 discloses an image forming apparatus including an image reading apparatus and an automatic document feeding apparatus that is opened and closed in a vertical direction via a hinge fixed to a rear upper end of a main body of the image reading apparatus. An electrophotographic copying machine having an ADF opening / closing handle is disclosed, wherein an opening / closing auxiliary handle composed of a pipe bending member is disposed on the right side surface.

JP 2006-050473 A JP 2006-162744 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a document reading apparatus and an image forming apparatus that can easily perform an opening / closing operation.

  According to a first aspect of the present invention, there is provided a document reading device main body, and an opening / closing body that is configured such that one end can rotate with respect to the document reading device main body, and the other end can be freely opened and closed. A recess provided in the other end of the opening / closing body, which is a cross-section of the opening / closing body and is perpendicular to the rotation axis direction of the opening / closing body, toward an upper end and a lower end in the thickness direction of the opening / closing body The document reading apparatus has a recessed portion that is inclined and recessed so that the depth of the recessed portion is shallow, and further has a handle portion that extends to the end of the recessed portion.

  Further, the present invention according to claim 2 is characterized in that the inclination toward the upper end and the inclination toward the lower end of the recess portion continues from the deepest depth of the recess portion to the end of the recess portion. The document reading device according to claim 1.

  According to a third aspect of the present invention, there is provided a document reading device main body, and an opening / closing body that is configured such that one end thereof can rotate with respect to the document reading device main body, and the other end can be freely opened and closed. A recess provided in the other end of the opening / closing body, which is a cross-section of the opening / closing body and is perpendicular to the rotation axis direction of the opening / closing body, toward an upper end and a lower end in the thickness direction of the opening / closing body The upper end and the lower end are curved in a horizontal cross section of the opening / closing body in a state in which the opening / closing body is closed. An original reading apparatus having a handle portion.

  According to a fourth aspect of the present invention, there is provided a document reading device main body, and an opening / closing body that is configured such that one end thereof is rotatable with respect to the document reading device main body and the other end is provided to be freely opened and closed. A recess provided in the other end of the opening / closing body, which is a cross-section of the opening / closing body and is perpendicular to the rotation axis direction of the opening / closing body, toward an upper end and a lower end in the thickness direction of the opening / closing body A handle having a recessed portion that is inclined and recessed so that the depth of the handle is shallow, and the length of the upper end in the longitudinal direction of the handle is the same as the length of the lower end in the longitudinal direction of the handle Is a document reading apparatus having.

  According to the first and second aspects of the present invention, it is possible to make contact with the operator's finger or the like easier than in the case where the present configuration is not provided.

  According to the third aspect of the present invention, the range of contact with the operator's finger or the like can be increased as compared with the case where the present configuration is not provided.

  According to the fourth aspect of the present invention, the range in contact with the operator's finger or the like can be increased as compared with the case without this configuration.

1 is a perspective view showing an image forming apparatus according to an embodiment of the present invention. 1 is a cross-sectional view illustrating an image forming apparatus according to an embodiment of the present invention from the side. 1 is a cross-sectional view of a document reading apparatus according to an embodiment of the present invention. 1 is a perspective view of an image forming apparatus in a state where a document conveying device according to an embodiment of the present invention is opened. FIG. 2 is a view of the image forming apparatus 10 as viewed from above in a state where the document conveying apparatus according to the embodiment of the present invention is opened. 2 is a side of a document conveying device according to an embodiment of the present invention that is in contact with a document reading device main body. FIG. 5 is a side cross-sectional view of the handle portion at each position with respect to the longitudinal direction of the document conveying device according to the embodiment of the present invention. FIG. 6 is a top cross-sectional view of the handle portion at each position with respect to the thickness direction of the document conveying device according to the embodiment of the invention. It is explanatory drawing explaining the effect | action of the handle part which concerns on embodiment of this invention.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an image forming apparatus 10 as an embodiment of the present invention. FIG. 2 is a cross-sectional view from the right side of the image forming apparatus 10.

The image forming apparatus 10 includes an image forming apparatus main body 12, a discharge unit 14 that discharges a recording medium on which an image is formed, a document reading device 16 that reads a document, and an operation unit 18 that operates the image forming device 10. Have.
Further, the image forming apparatus 10 is provided with an information input terminal 20 through which image information is input from an external device such as a personal computer.

The image forming apparatus 10 forms an image on a recording medium based on image information read by the document reading device 16 or image information input from the information input terminal 20.
The image forming apparatus 10 can be connected to, for example, a telephone line, and forms an image on a recording medium based on image information input via the telephone line. The image forming apparatus 10 transmits image information read by the document reading device 16 or data input from the information input terminal 20 via a telephone line.

On the front surface of the image forming apparatus main body 12, a paper feed opening / closing unit 32 is provided. The sheet feeding opening / closing unit 32 is attached to the image forming apparatus main body 12 using a hinge 34 so as to be freely opened and closed. 1 shows a state in which the paper feed opening / closing section 32 is opened with respect to the image forming apparatus main body 12, and FIG. Show.
Further, the image forming apparatus main body 12 is formed with a discharge hole 36 used for discharging the recording medium on which the image is formed.

  In the image forming apparatus main body 12, an image forming unit 40, a paper feeding device 42, and a conveyance path 44 are provided.

  The image forming unit 40 includes a photosensitive drum 52 used as an image carrier, a charging device 54 that charges the surface of the photosensitive drum 52, and light on the surface of the photosensitive drum 52 that is charged by the charging device 54. The latent image forming device 56 that forms a latent image on the surface of the photosensitive drum 52 by irradiation, and the latent image formed on the surface of the photosensitive drum 52 by the latent image forming device 56 is developed using a developer. A developing device 58, a transfer device 60 for transferring a developer image formed on the surface of the photosensitive drum 52 by the development by the developing device 58 to a recording medium, and a surface of the photosensitive drum 52 after the transfer by the transfer device 60 And a fixing device 64 for fixing the developer image transferred to the recording medium by the transfer device 60 to the recording medium.

The sheet feeding device 42 includes, for example, one recording medium storage unit 72 that stores recording media in a stacked state, and a delivery roll 74 that sends out the recording medium stored in the recording medium storage unit 72.
When a recording medium of a certain size or larger is stored in the recording medium storage unit 72, the paper feed opening / closing unit 32 is opened. When such a recording medium is stored, the rear end side of the recording medium protrudes from the image forming apparatus main body 12, and the protruding portion of the recording medium is supported by the paper feed opening / closing unit 32 from below in the gravity direction. .

  The conveyance path 44 is used for conveying the recording medium from the paper feeding device 42 toward the transfer device 60 and further conveying the recording medium to the discharge unit 14. A delivery roll 74, a transport roll 76, a registration roll 78, a transfer device 60, a fixing device 64, and a discharge roll 80 are provided along the transport path 44 in order from the upstream side in the recording medium transport direction.

The conveyance roll 76 conveys the recording medium toward the registration roll 78.
The registration roll 78 temporarily stops the movement of the leading end portion of the recording medium conveyed toward the transfer device 60 toward the transfer device 60, and the developer image formed on the photosensitive drum 52 is transferred to the transfer device. The movement of the leading end portion of the recording medium toward the transfer device 60 is resumed so as to coincide with the timing at which the position 60 is reached.
The discharge roll 80 conveys the recording medium on which the developer image is fixed by the fixing device 64 toward the discharge unit 14.

  The discharge unit 14 is provided on the upward surface 92 of the image forming apparatus main body 12, and is an extension unit that can be extended from the surface 92 in the forward direction (left direction in FIG. 2) that is the direction in which the recording medium is discharged. 94.

The extension 94 is a first extension member 96 that can be extended from the surface 92 in the recording medium discharge direction, and a second extension member 98 that can be extended further forward from the first extension member 96. And have.
The extension portion 94 supports the portion protruding from the surface 92 of the recording medium on which the image is formed from the lower side in the gravity direction.

The document reading device 16 includes a document reading device main body 102 and a document conveying device 104 as an opening / closing body that is rotatably supported at one end with respect to the document reading device main body 102 and is openable at the other end. The document reading device 16 is disposed above the image forming apparatus main body 12 so as to form a space S with the discharge unit 14.
On the front side of the document conveying device 104 (on the left side in FIG. 2, the end on the side to be opened and closed), a handle portion 106 used when the operator opens and closes the document conveying device 104 is formed. The handle portion 106 is provided substantially at the center with respect to the rotation axis direction of the document conveying device 104. The handle portion 106 is formed with a recess portion 106a through which an operator enters a finger or the like.

The document reading device 16 is mounted on the image forming apparatus main body 12 so as to rotate with respect to the image forming apparatus main body 12 about the rotation shaft 112 of the hinge 110.
The hinge 110 attaches the document reading device 16 to the image forming apparatus main body 12 so that the document reading device 16 can move between the first position and the second position. Here, the first position is a position where the document reading device 16 is supported on the upward surface 92 of the image forming apparatus main body 12 from below. Also. The second position is a position where the space S is expanded as compared with the case where the document reading device 16 is disposed at the first position.

In the image forming apparatus 10, the operator may take out the recording medium discharged to the discharge unit 14 by inserting his / her hand into the space S with the document reading device 16 disposed at the first position, After the reading device 16 is moved to the second position and the space S is expanded, the operator may insert a hand into the space S and take out the recording medium discharged to the discharge unit 14.
For example, when a relatively small recording medium such as a postcard is taken out from the discharge unit 14, it is necessary to insert a hand to the back side of the space S. Therefore, the recording medium is taken out with the document reading device 16 in the first position. Rather than moving the document reading device 16 to the second position and expanding the space S, it is easier to remove the recording medium.

Next, details of the document reading device 16 will be described.
FIG. 3 is a sectional view of the document reading device 16. FIG. 4 is a perspective view of the image forming apparatus 10 in a state where the document conveying device 104 is opened.

The document reading device 16 includes, for example, two hinge portions 134 having original shafts 132, and the document reading device main body 102 and the document conveying device 104 are connected by these hinge portions 134.
The document conveying device 104 opens and closes with respect to the document reading device main body 102 so as to rotate about the original shaft 132. When the document conveying device 104 is closed, the platen member 136 of the document reading device main body 102 is covered as shown in FIG.
The document reading device 16 is provided with an open / close sensor 138 used as an open / close detection means for detecting the open / close state of the document transport device 104.

  The document reading apparatus main body 102 is equipped with a reading unit 140 that irradiates a document placed on the platen member 136 with light and reads the document based on the reflected light from the document.

  The document reading device 16 has a function of flowing and reading the document D being conveyed by the document conveying device 104 and a function of reading the document D placed on the platen member 136.

  The reading unit 140 includes a full rate carriage 142, a half rate carriage 144, a lens 146, and a photoelectric conversion element 148.

The full-rate carriage 142 includes a light source 150 and a first mirror 152, and the document reading apparatus main body 102 with the sub-scanning direction of the document D (from the left side to the right side in FIG. 3) as the scanning direction as indicated by arrows in FIG. It is designed to move a full stroke in the scan direction.
The light source 150 is a lamp such as halogen or xenon that extends in the main scanning direction of the document, and has a predetermined scan width.

  The half-rate carriage 144 includes a second mirror 154 and a third mirror 156, and is configured to move within the document reading apparatus main body 102 by a half stroke in the sub-scanning direction.

  The lens 146 has a light source 150 for a document D placed on a platen member 136 provided above the movement range of the full rate carriage 142 and the half rate carriage 144, or a document D passing through a transported document reading position 182 described later. The reflected light of the irradiated light is received through the first mirror 152, the second mirror 154, and the third mirror 156 to form an image.

  The photoelectric conversion element 148 receives the reflected light at the imaging position of the reflected light by the lens 146 and, for example, analog signals corresponding to the respective RGB amounts of light by a photodiode provided with RGB filters (primary color filters). For example, a three-line color CCD that outputs an electrical signal to a processing circuit.

  The document transport device 104 includes a document table 160 on which the document D before reading is placed (set), a document transport path 162 that transports the document D, and a discharge table 164 from which the document D after the image is read is discharged. And have.

  The document conveyance path 162 includes a main conveyance unit 166 and a reversing unit 168. The main conveyance unit 166 is formed in a U-shape, and along the main conveyance unit 166, in order from the upstream side in the document conveyance direction, a pickup roll 170, a feed roll 172, a pre-registration roll 174, a registration roll 176, an out-roll 178, and A discharge roll 180 is provided.

The pickup roll 170 is lowered when the document is fed, and picks up the document D placed on the document table 160.
The feed roll 172 feeds the original D sent from the pickup roll 170 and supplies only the uppermost original D.
The pre-registration roll 174 temporarily corrects the document D sent from the feed roll 172, forms a loop, and performs skew correction.
The registration roll 176 temporarily stops the document D sent from the pre-registration roll 174 and takes a reading timing.
When discharging the document D, the discharge roll 180 is rotated forward and discharged to the discharge table 164 via the out roll 178 and the discharge roll 180.

One end of the reversing unit 168 is connected to the main transport unit 166 between the out roll 178 and the discharge roll 180, and the other end is connected to the main transport unit 166 on the upstream side of the pre-registration roll 174. An inversion gate 162 is provided near one end of the inversion unit 168.
When reversing the document D, the discharge roll 180 is reversed when the trailing edge of the document D reaches the vicinity of the discharge roll 180, and the document D is guided to the reversing unit 168 by the reversal gate 162 being positioned below. To do.
The inversion gate 162 may be opened by the pressing force of the document D and closed by the weight of the inversion gate 162, or an actuator for opening and closing the inversion gate 162 may be provided.

  The document transport path 162 is provided with a transported document reading position 182 that is a position for reading the document D when the document D being transported is read along the main transport unit 166. The transported document reading position 182 is provided between the registration roll 176 and the out-roll 178 and is configured to read the document D sent by the document transport device 104.

  Between the transport document reading position 182 and the platen member 136, a first reference white plate 184 that reflects the light irradiated by the light source 150 is provided. The first reference white plate 184 has a white reflecting surface that reflects light. For example, when the image forming apparatus 10 is turned on, the light source 150 irradiates the first reference white plate 184. The reflected light (initial reference light amount light) can be received by the photoelectric conversion element 148 via the first mirror 152, the second mirror 154, the third mirror 156, and the lens 146.

FIG. 5 is a view of the image forming apparatus 10 as viewed from above with the document conveying device 104 opened.
A second reference white plate 202 that reflects the light emitted from the light source 150 is provided at each end of the transported document reading position 182.
The second reference white plate 202 has a light reflecting surface that reflects light as a reference white. For example, at the same time that the document reading device 16 reads and reads the document D, the light source 150 is applied to the second reference white plate 202. The photoelectric conversion element 148 can receive reflected light (reference light amount light at the time of reading) applied to the light via the first mirror 152, the second mirror 154, the third mirror 156, and the lens 146. .

  On the outside of the platen member 136 and the transported document reading position 182, a covering space (margin) 204 that is covered by the document transporting device 104 is formed so as to prevent light from leaking to the outside. A portion of the covering space 204 formed on the front side (lower side in FIG. 5) of the platen member 136 and the transported document reading position 182 is referred to as an opening / closing side covering space 204a.

FIG. 6 shows a surface of the document conveying device 104 on the side in contact with the document reading device main body 102.
On the front side (upper side in FIG. 6) of the document conveying device 104, an open / close side covering portion 214a that is in contact with the open / close side covering space 204a is formed. In the present embodiment, the length in the front-rear direction of the opening / closing side covering portion 214a is shorter than the length in the front-rear direction of the opening / closing side covering space 204a.
In the state where the document conveying device 104 is closed, the handle portion 106 is arranged above the front covering space 204a.

Next, details of the handle 106 will be described.
FIG. 7 is a side sectional view of the handle portion 106 at each position in the longitudinal direction of the document conveying device 104. In FIG. 7, a is a position in the vicinity of the end of the handle portion 106 in the longitudinal direction, b is a position closer to the center than a, and c is a center position.

  The handle portion 106 has a recessed portion that is inclined so as to be directed toward the inside of the document conveying device 104 as it approaches the document reading device main body 102 when the document conveying device 104 is closed with respect to the document reading device main body 102. 106a is formed. The depression 106 a is inclined toward the inner side of the document conveying device 104 toward the center with respect to the rotation axis direction of the document conveying device 104. When the recess 106a is formed in such a form, the handle 106 has a greater range of contact with the operator's finger or the like than in the case without the present configuration.

In the present embodiment, the handle portion 106 is formed so as not to protrude from the front covering space 204a of the document reading apparatus main body 102 in the front-rear direction (horizontal direction in FIG. 2). That is, the upper end 104a of the document conveying device 104 is formed so as not to be in front of the front covering space 204a.
When the handle 106 is formed in this way, an apparatus (for example, the operation unit 18) provided on the front side of the image forming apparatus 10 and below the handle 106 as compared with the case without the present configuration. The deterioration of operability is suppressed.

FIG. 8 is a top sectional view of the handle portion 106 at each position with respect to the thickness direction (vertical direction in FIG. 2) of the document conveying device 104.
In FIG. 8, d is a position in the vicinity of the lower end in the thickness direction of the handle 106, e is a center position, and f is a position in the vicinity of the upper end.

  The handle portion 106 is formed substantially at the center with respect to the longitudinal direction of the document apparatus 104. When the handle portion 106 is formed in this way, compared with the case where the handle portion 106 is not provided, the addition when the opening / closing operation is performed using the handle portion 106 is added to the document conveying device 104 (or two hinge portions). 134) Takes evenly throughout.

  The handle 106 is inclined in a curved shape inward from the end toward the center with respect to the longitudinal direction of the document conveying device 104. The handle portion 106 is symmetrical with respect to the longitudinal direction of the document conveying device 104 and has a shape in which the center is recessed most inward.

  In the above description, the handle portion 106 has been described with respect to the form in which the recesses become shallower from the lower end to the upper end in the thickness direction. However, the present invention is not limited thereto, and the handle portion 106 may have the most recessed shape in the center in the thickness direction. That is, it may be configured to be recessed inward toward the center of the handle 106 with respect to the longitudinal direction and the thickness direction of the document conveying device 104 (a shape in which the curved surface is diagonal in the depth direction). .

Next, the operation of the handle portion 106 will be described.
FIG. 9A shows the handle portion 106 in this embodiment, and FIG. 9B shows the handle portion 300 as a comparative example. The handle portion 300 does not have a curved inclination, and the distance L (the depth of the depression at the center in the longitudinal direction of the document conveying device 104) from the edge of the upper surface of the document conveying device 104 to the edge of the lower surface of the document conveying device 104 is This is the same as the unit 106.

As shown in FIG. 9A, the handle portion 106 is easily brought into contact with the operator's finger or the like by the recess portion 106a, and the operator's force is easily applied following the opening / closing direction of the document conveying device 104. Yes.
On the other hand, as shown in FIG. 9B, when the handle portion 300 does not have a curved inclination and has a linearly recessed shape, it is difficult to touch the operator's finger or the like. In addition, it is difficult for the operator's force to be applied to the opening / closing direction of the document conveying device 104.

  Thus, in the handle portion 106, the length of the distance L (the depth of the recess) is reduced as compared with the handle portion 106 that does not have the recess portion 106a of this form.

  In the above-described embodiment, the configuration using the automatic conveyance device 104 as the opening / closing body in which the handle portion 106 is formed has been described. However, the configuration is not limited to this, and the document D placed on the platen member 136 is held. The present invention may be applied to a document holder or the like.

  The document reading device has a document reading device main body, and an opening / closing body that is rotatably supported at one end with respect to the document reading device main body and that can be opened and closed at the other end. The opening / closing body may be provided with a handle portion having a recessed portion that is inclined toward the inside of the opening / closing body as the opening / closing body is closed with respect to the document reading apparatus body. .

  Further, the handle portion may be formed inside the front edge of the document reading apparatus main body with respect to the horizontal direction.

  Moreover, you may make it have a form which a hollow part inclines toward the inner side of the said opening-closing body, so that it goes to the center with respect to the rotating shaft direction of an opening-closing body.

  Moreover, you may make it a handle part be formed in the approximate center with respect to the rotating shaft direction of the opening / closing body.

  The opening / closing body may be a document conveying device that conveys a document.

  Further, the image forming apparatus includes a document reading device and an image forming unit that forms an image based on image information read by the document reading device. The document reading device includes a document reading device main body, a document reading device, and the like. An opening / closing body that is rotatably supported at one end with respect to the main body, and that the other end of the opening / closing body is freely openable / closable. In addition, a handle portion having a recessed portion that is inclined toward the inside of the opening / closing body as it approaches the document reading apparatus main body can be provided.

DESCRIPTION OF SYMBOLS 10 Image forming apparatus 12 Image forming apparatus main body 14 Discharge part 16 Document reading apparatus 18 Operation part 32 Feeding opening / closing part 40 Image forming part 42 Paper feeding apparatus 44 Conveyance path 72 Recording medium storage part 102 Document reading apparatus main body 104 Document conveying apparatus 106 Handle portion 136 Platen member 140 Reading portion 160 Document table 162 Document conveying path 162 Reversing gate 162 Document conveying path 164 Discharging table 166 Main conveying portion 168 Reversing portion 182 Conveying document reading position 204 Covering space 204a Front covering space 214a Front covering portion

Claims (4)

A document reader body;
An opening / closing body configured such that one end can rotate with respect to the document reading apparatus main body, and the other end can be freely opened and closed,
Provided at the other end of the opening and closing body, a cross section of the opening and closing body, in a cross section perpendicular to the rotation axis direction of the opening and closing body, toward the upper and lower ends in the thickness direction of the opening and closing body, An original reading apparatus having a recessed portion that is inclined so that the depth of the recessed portion becomes shallow, and further has a handle portion that continues to the end of the recessed portion.   2. The document reading apparatus according to claim 1, wherein the inclination toward the upper end and the inclination toward the lower end of the recess portion continues from a deepest depth of the recess portion to an end portion of the recess portion. . A document reader body;
An opening / closing body configured such that one end can rotate with respect to the document reading apparatus main body, and the other end can be freely opened and closed,
Provided at the other end of the opening and closing body, a cross section of the opening and closing body, in a cross section perpendicular to the rotation axis direction of the opening and closing body, toward the upper and lower ends in the thickness direction of the opening and closing body, A handle having a recessed portion which is inclined and recessed so that the depth of the recessed portion becomes shallow, and the upper end and the lower end are curved in a horizontal section of the opening / closing body in a state where the opening / closing body is closed. A document reading device having a handle portion. A document reader body;
An opening / closing body configured such that one end can rotate with respect to the document reading apparatus main body, and the other end can be freely opened and closed,
Provided at the other end of the opening and closing body, a cross section of the opening and closing body, in a cross section perpendicular to the rotation axis direction of the opening and closing body, toward the upper and lower ends in the thickness direction of the opening and closing body, A handle having a recessed portion that is inclined and recessed so that the depth of the recess is shallow, and the length of the upper end in the longitudinal direction of the handle is the same as the length of the lower end in the longitudinal direction of the handle Document reading apparatus having a section.

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