JP6020898B2 - Paper discharge device - Google Patents

Description

  The present invention relates to a paper discharge device including a paper discharge tray on which recording paper is placed.

  2. Description of the Related Art Conventionally, there is known a paper discharge device that includes a paper discharge tray on which recording paper is placed and a structure (for example, an image reading unit) that is spaced above the paper discharge tray. Such a paper discharge device forms a paper discharge space between the paper discharge tray and the image reading unit. Further, such a paper discharge tray is arranged so as to cover a component (for example, a fan) from above (for example, Patent Document 1).

  By the way, in such a paper discharge device, when an operator works on a part (for example, replaces a part), before removing the paper discharge tray, all (for example, the upper side) of the paper discharge tray (for example, The image reading unit) must be removed. Therefore, the work to be performed on the parts is very complicated.

JP 2007-316438 A

  Therefore, in view of such circumstances, it is an object of the present invention to provide a paper discharge device that can simplify the work performed on components covered from above by a paper discharge tray.

  The paper discharge device according to the present invention has a discharge surface for forming a paper discharge space between a paper discharge tray having a placement surface on which recording paper is placed and covering components from above, and the paper discharge tray. And a tray body having a tray opening disposed above the component, and a tray cover for opening and closing the tray opening. And a body.

  According to the paper discharge device of the present invention, the paper discharge space is formed between the paper discharge tray having a placement surface on which the recording paper is placed and a component that is spaced apart above the paper discharge tray. Is formed. A paper discharge tray that covers components from above includes a tray main body having a tray opening disposed above the components, and a tray cover body that opens and closes the tray opening. Thereby, by opening the tray opening, it is possible to work on the component from the opened tray opening. Therefore, the work on the parts can be simplified.

  The paper discharge device according to the present invention may include a restricting portion for restricting movement of the tray main body in order to prevent the tray main body from slipping out of the paper discharge space.

  According to such a configuration, the restricting portion restricts the movement of the tray body. Thereby, it is possible to prevent the tray body from coming out of the paper discharge space.

  In the paper discharge device according to the present invention, the tray opening may be arranged at a side end of the tray body.

  According to such a configuration, the tray opening is disposed at the side end of the tray body. Thereby, the operation | work with respect to components can further be simplified.

  A paper discharge device according to the present invention includes a housing that accommodates the component therein and that fixes the tray body, and a side cover body that is attached to a side of the housing, and the housing is disposed on a side of the component. A side opening that is disposed and opened and closed by the side cover body, the tray opening and the side opening are arranged to communicate with each other, and the side cover body closes the side opening, In order to hold the tray cover body in a state in which the tray opening is closed, a holding section that holds the tray cover body may be provided.

  According to such a configuration, the housing for fixing the tray body includes the side opening disposed on the side of the component housed inside. The side cover body is attached to the side of the housing to open and close the side opening. And since it arrange | positions so that a tray opening part and a side opening part may connect, the operation | work with respect to components can further be simplified by each opening part being open | released. Further, when the side cover body closes the side opening, the holding section presses the tray cover body, so that the tray cover body is held in a state of closing the tray opening.

  In the paper discharge device according to the present invention, the tray cover body protrudes from the cover portion that covers the tray opening portion and the cover portion, and presses the upper part of the component when the cover portion covers the tray opening portion. The structure of providing a protrusion part may be sufficient.

  According to such a configuration, the tray cover body includes the cover portion that covers the tray opening and the protruding portion that protrudes from the cover portion. The protruding portion presses the upper part of the component when the cover portion covers the tray opening. Thereby, components can be supported stably.

  The paper discharge device according to the present invention includes the component, and the component may be at least one of a fan and a filter.

  The paper discharge device according to the present invention may include the component, the component may be a fan, and the restricting portion may be a duct that forms a path of an air flow generated by the fan.

  As described above, the paper discharge device according to the present invention has an excellent effect of simplifying the work performed on the components covered from above by the paper discharge tray.

FIG. 1 is an overall perspective view of a paper discharge device according to an embodiment of the present invention. FIG. 2 is a schematic longitudinal sectional view in front view of FIG. 1 in the paper discharge device according to the embodiment. FIG. 3 is an enlarged view of a region III in FIG. 2 in the paper discharge device according to the embodiment. 4 shows a cross-sectional view taken along the line IV-IV of FIG. 3 in the paper discharge apparatus according to the embodiment. FIG. 5 is a longitudinal sectional view of a main part of a paper discharge device according to another embodiment of the present invention.

  Hereinafter, an embodiment of a paper discharge device according to the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the paper discharge device 1 according to the present embodiment includes a transport unit 2 that transports recording paper and an image forming unit 3 that forms an image on the recording paper. The paper discharge device 1 includes a housing 4 that houses the conveyance unit 2, the image forming unit 3, and the like, a paper discharge tray 5 that has a placement surface 51 on which recording paper is placed and is attached to the housing 4, and a housing 4 is provided with a side cover body 6 attached to the side of 4.

  The paper discharge device 1 is a component 7 that is spaced apart above the paper discharge tray 5 to form a paper discharge space S1 with the paper discharge tray 5, specifically, a document reading that reads a document. The unit 7 is provided. That is, the paper discharge device 1 according to the present embodiment is an image forming device that forms an image on recording paper based on image data of a document read by the document reading unit 7. The paper discharge device 1 includes a recording paper restricting body 8 that restricts the movement of the recording paper placed on the paper discharge tray 5 and an operation unit 9 operated by the user. In FIG. 1, the operation unit 9 side is the front, and FIG. 2 is a cross-sectional view of the paper discharge device 1 cut in the vertical direction and viewed from the front.

  The transport unit 2 includes a recording paper cassette 21 that stores recording paper and is inserted into the lower portion of the housing 4, and a paper feed roller 22 that transports the uppermost recording paper that is press-contacted among the stacked recording papers. ing. The transport unit 2 includes a pressing plate 23 that presses the recording paper against the paper feed roller 22 by urging the end portion upward. The transport unit 2 includes a paper discharge roller 24 that transports the recording paper on which the image is formed by the image forming unit 3 along the paper discharge direction D1 so as to be transported toward the paper discharge tray 5.

  The image forming unit 3 includes a cylindrical photoreceptor drum 31 that forms a photoreceptor on the surface, and a charger 32 that uniformly charges the surface of the photoreceptor drum 31. The image forming unit 3 includes an exposure unit 33 that exposes the surface of the photosensitive drum 31 based on the image data read by the document reading unit 7.

  The image forming unit 3 includes a developing unit 34 that attaches toner to the surface of the photosensitive drum 31, a transfer unit 35 that transfers the toner attached to the surface of the photosensitive drum 31 to recording paper, and fixes the toner to the recording paper. And a fixing unit 36 to be provided. The image forming unit 3 includes an exhaust device 37 that exhausts the air inside the housing 4 to the outside.

  As shown in FIGS. 2 to 4, the exhaust device 37 supports a fan (“part” according to the present invention) 38 for discharging the air around the charger 32 to the outside of the housing 4, and the fan 38. And a fan support 39 for the purpose. The exhaust device 37 includes a duct 310 that forms a path of the air flow F <b> 1 generated by the fan 38, and a filter 311 that is disposed downstream of the fan 38 and attached to the side cover body 6.

  The fan 38 includes a fan frame portion 312 formed in a rectangular tube shape, and a blade portion 313 disposed inside the fan frame portion 312. The fan frame portion 312 is formed in a flat plate shape, and the wing portion 313 rotates around a direction orthogonal to the fan frame portion 312. As a result, the fan 38 generates an air flow F <b> 1 along a direction orthogonal to the flat fan frame portion 312, that is, along the axial direction of the blade portion 313.

  The fan support portion 39 includes a pair of side wall portions 314 and 315 that support side portions of the fan frame portion 312 and a bottom wall portion 316 that supports the bottom portion of the fan frame portion 312 so as to correspond to the shape of the fan 38. I have. The fan support portion 39 includes a fixed claw 317 that locks one side of the fan 38 and an elastic claw 318 that locks the other side of the fan 38 in order to prevent the fan 38 from moving in the axial direction of the wing 313. And.

  The duct 310 is formed so as to increase in diameter toward the downstream side of the airflow F1. The duct 310 includes a duct inclined portion 319 at the top. The duct inclined portion 319 is inclined so as to rise toward the downstream side of the air flow F1, that is, toward the downstream side in the paper discharge direction D1.

  The housing 4 includes a reading support portion 41 that extends upward to support the document reading portion 7. The housing 4 includes an upper opening 42 disposed above the fan 38 and the duct 310, and a side opening 43 disposed on the side of the fan 38. The upper opening 42 and the side opening 43 are disposed so as to communicate with each other.

  The upper opening 42 is closed by the paper discharge tray 5 by attaching the paper discharge tray 5 to the housing 4 so as to cover the fan 38 from above. By attaching the side cover body 6 to the housing 4 so as to cover the fan 38 from the side, the side opening 43 is closed by the side cover body 6.

  The paper discharge tray 5 includes a tray main body 53 having a tray opening 52 disposed above the fan 38 and a tray cover body 54 that is detachable from the tray main body 53 in order to open and close the tray opening 52. . The upper surface of the tray main body 53 and the upper surface of the tray cover body 54 are disposed flush with each other, thereby constituting a placement surface 51 on which recording paper is placed. In FIG. 1, the boundary is indicated by a bold line so that the boundary between the tray main body 53 and the tray cover body 54 is clear.

  The tray main body 53 includes a tray inclined portion 55 that is inclined so as to rise toward the downstream side in the paper discharge direction D1. The tray inclined portion 55 is disposed along the duct inclined portion 319. The tray body 53 is attached to the upper opening 42 of the housing 4.

  While the tray body 53 is detachably attached to the housing 4, movement of the tray body 53 is restricted by the duct 310. Specifically, the tray inclined portion 55 of the tray main body 53 hits the duct inclined portion 319 of the duct 310, thereby preventing the tray main body 53 from coming out of the paper discharge space S1. That is, the duct 310 also functions as a restricting portion 310 that restricts the movement of the tray body 53.

  The tray opening 52 is disposed at the side end of the tray main body 53. Specifically, the tray opening 52 is disposed at the end of the tray main body 53 on the downstream side in the paper discharge direction D1. The tray opening 52 is disposed directly above the fan 38 so as to expose the fan 38 from above. The tray opening 52 is disposed so as to communicate with the side opening 43 of the housing 4.

  The tray cover body 54 includes a cover portion 56 that covers the tray opening 52 and a protruding portion 57 that protrudes from the cover portion 56. The tray cover body 54 includes a cover connection portion 58 that is pressed by the side cover 6, a filter upper support portion 59 that supports the upper portion of the filter 311, and a main body connection portion 510 that is pressed by the tray main body 53 from the outside.

  The cover unit 56 includes a recess 511 corresponding to the tip of the recording paper regulating body 8. The protruding portion 57 is formed in a flat plate shape and is disposed along the fan 38. The protruding portion 57 is disposed so as to press the upper portion of the fan 38 when the cover portion 56 covers the tray opening 52.

  The cover connecting portion 58 and the filter upper support portion 59 are disposed at the downstream end of the tray cover body 54 in the paper discharge direction D1. The cover connection portion 58 is disposed above the filter upper support portion 59. The main body connection portion 510 is disposed at the upstream end portion of the tray cover body 54 in the paper discharge direction D1.

  The side cover body 6 includes a holding portion 61 that presses the tray cover body 54 so that the tray cover body 54 holds the tray opening 52 in a state of closing the side opening 43 when the side opening 43 is closed. The side cover body 6 includes a through hole 62 on the side of the filter 311 so that air can be discharged by the exhaust device 37.

  The side cover body 6 includes a filter lower part support part 63 that holds the lower part of the filter 311 and a pair of filter side part support parts (not shown) 64 and 65 that support the side part of the filter 311. The side cover body 6 is fixed to the housing 4 by fastening members (bolts in the present embodiment) 66 and 66.

  Returning to FIGS. 1 and 2, the document reading unit 7 is disposed on the document placing table 71 on which the document is placed, the platen cover 72 that opens and closes the document reading surface that is the upper surface of the document placing table 71, and the platen cover 72. A document transporting unit 73 that transports the document to the document placing table 71 is provided. The document reading unit 7 defines an upper portion of the paper discharge space S1, while the paper discharge tray 5 defines a lower portion of the paper discharge space S1. In the present embodiment, the paper discharge space S1 is a so-called in-body paper discharge space S1 that covers the upper side and the lower side and opens a part of the side.

  The recording paper regulating body 8 is formed long. A base end portion (upper end portion) of the recording paper regulating body 8 is rotatably connected to a lower portion of the document reading unit 7. The recording paper regulating body 8 regulates the movement of the recording paper by applying its own weight to the recording paper placed on the paper discharge tray 5. Note that the recording paper restricting body 8 may include a rotation restricting portion that restricts rotation of a predetermined angle or more. According to such a configuration, when the tray opening 52 is open, it is possible to restrict the front end (lower end) of the recording paper regulating body 8 from entering the tray opening 52 unnecessarily.

  The configuration of the paper discharge device 1 according to the present embodiment is as described above. Next, operations performed on the fan 38 according to the paper discharge device 1 according to the present embodiment will be described below. Specifically, the operation for replacing the fan 38 will be described below.

  The side cover body 6 is removed from the housing 4 by removing the fastening member 66. At this time, the side cover body 6 is removed from the housing 4 while rotating around the lower end portion. When the side cover body 6 is removed from the housing 4, the side opening 43 of the housing 4 is opened.

  Since the holding portion 61 that has pushed the cover connecting portion 58 is separated from the cover connecting portion 58, the tray cover body 54 is removed from the tray main body 53. At this time, the tray cover body 54 is removed from the tray main body 53 while rotating around the main body connection portion 510 as a fulcrum.

  Since the opened tray opening 52 and the side opening 43 communicate with each other, the upper side and the side of the fan 38 are exposed. Thereby, since it can work from the upper part and the side of the fan 38, the fan 38 can be replaced | exchanged easily. Thereafter, the tray cover body 54 is attached to the tray body 53 and the side cover body 6 is attached to the housing 4 in the reverse procedure, whereby the operation is completed.

  As described above, according to the paper discharge device 1 according to the present embodiment, the paper discharge space S1 is separated from the paper discharge tray 5 having the placement surface 51 on which the recording paper is placed and above the paper discharge tray 5. It is formed between the original reading unit 7 to be arranged. The paper discharge tray 5 that covers the fan 38 from above includes a tray main body 53 having a tray opening 52 disposed above the fan 38 and a tray cover body 54 that opens and closes the tray opening 52. Thus, when the tray opening 52 is opened, the fan 38 can be operated from the opened tray opening 52. Therefore, the work for the fan 38 can be simplified.

  According to the paper discharge device 1 according to the present embodiment, the duct 310 restricts the movement of the tray main body 53. Thereby, it is possible to prevent the tray main body 53 from coming out of the paper discharge space S1.

  According to the paper discharge device 1 according to the present embodiment, the tray opening 52 is disposed at the side end of the tray main body 53. Thereby, the operation for the fan 38 can be further simplified.

  According to the paper discharge device 1 according to the present embodiment, the housing 4 for fixing the tray main body 53 includes the side opening 43 disposed on the side of the fan 38 accommodated therein. The side cover body 6 opens and closes the side opening 43 by being attached to the side of the housing 4. Since the tray opening 52 and the side opening 43 are arranged so as to communicate with each other, when the openings 43 and 52 are opened, the work on the fan 38 can be further simplified. Further, when the side cover body 6 closes the side opening 43, the holding portion 61 presses the tray cover body 54, so that the tray cover body 54 is held in a state in which the tray opening 52 is closed.

  In the paper discharge device 1 according to the present embodiment, the tray cover body 54 is disposed so as to cover the fan 38 that is not normally operated (replacement, repair, etc.) by the user. Therefore, when the side cover body 6 closes the side opening 43, the tray cover body 54 is held in a state of closing the tray opening 52, so that the tray cover body 54 is inadvertently opened. Can be prevented.

  According to the paper discharge device 1 according to the present embodiment, the tray cover body 54 includes the cover portion 56 that covers the tray opening 52 and the protruding portion 57 that protrudes from the cover portion 56. The protruding portion 57 presses the upper portion of the fan 38 when the cover portion 56 covers the tray opening 52. Thereby, the fan 38 can be supported stably.

  It should be noted that the paper discharge device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention. Moreover, it is needless to say that configurations, methods, and the like according to various modifications described below may be arbitrarily selected and employed in the configurations, methods, and the like according to the above-described embodiments.

  The paper discharge device 1 according to the embodiment is configured such that the tray cover body 54 is detachable from the tray main body 53. However, the paper discharge device 1 according to the present invention is not limited to such a configuration. For example, the paper discharge device 1 according to the present invention may be configured such that the tray cover body 54 is rotatably attached to the tray body 53, and the tray cover body 54 is slidably attached to the tray body 53. It may be configured.

  In the paper discharge device 1 according to the above-described embodiment, the component 7 that is spaced apart from the paper discharge tray 5 is the original reading unit 7, and the paper discharge space S 1 is the original reading unit 7 and the paper discharge tray. 5 is formed. However, the paper discharge device 1 according to the present invention is not limited to such a configuration. For example, in the paper discharge device 1 according to the present invention, a plate-like member is disposed above the paper discharge tray 5 so as to be spaced apart, and a paper discharge space S1 is formed between the plate-like member and the paper discharge tray 5. The structure of, may be used.

  The paper discharge device 1 according to the embodiment is configured such that the tray body 53 is detachable from the housing 4. However, the paper discharge device 1 according to the present invention is not limited to such a configuration. For example, the paper discharge device 1 according to the present invention may be configured such that the tray body 53 is formed integrally with the housing 4.

  The paper discharge device 1 according to the embodiment has a configuration in which the protruding portion 57 hits the upper portion of the fan 38 when the cover portion 56 covers the tray opening 52. However, the paper discharge device 1 according to the present invention is not limited to such a configuration. For example, the paper discharge device 1 according to the present invention may be configured such that when the cover portion 56 covers the tray opening 52, the protruding portion 57 is disposed with a gap from the upper portion of the fan 38. According to such a configuration, when the fan 38 moves upward, the protruding portion 57 presses the upper portion of the fan 38.

  The paper discharge device 1 according to the above embodiment has a configuration in which the tray opening 52 is disposed at the side end of the tray main body 53. However, the paper discharge device 1 according to the present invention is not limited to such a configuration. For example, the paper discharge device 1 according to the present invention may be configured such that the tray opening 52 is disposed at the center of the tray main body 53.

  The paper discharge device 1 according to the above-described embodiment has a configuration in which a component that is covered by the paper discharge tray 5 from above is a fan 38. However, the paper discharge device 1 according to the present invention is not limited to such a configuration. For example, the paper discharge device 1 according to the present invention may be configured such that the part covered from the top by the paper discharge tray 5 is the filter 311, and the part is another part disposed inside the housing 4. In addition, as shown in FIG. 5, the components may be a fan 38 and a filter 311.

  In the configuration shown in FIG. 5, the filter support portion 312 supports the filter 311. Projecting portions 57 and 57 projecting from the cover portion 56 of the tray cover body 54 press the upper portion of the fan 38 and the upper portion of the filter 311, respectively.

  In the above-described embodiment, the operation for the component is the operation for replacing the fan 38. However, in the present invention, the work for the parts may be work for repairing or cleaning the parts such as the fan 38 and the filter 311.

DESCRIPTION OF SYMBOLS 1 ... Paper discharge apparatus, 4 ... Housing, 5 ... Paper discharge tray, 6 ... Side cover body, 7 ... Document reading part (constituent body), 38 ... Fan (component), 43 ... Side opening part, 51 ... Mounting surface 52 ... Tray opening, 53 ... Tray body, 54 ... Tray cover body, 56 ... Cover, 57 ... Protruding part, 61 ... Holding part, 310 ... Duct (regulating part), 311 ... Filter, S1 ... Discharge space

Claims (5)

A paper discharge tray having a placement surface on which recording paper is placed and covering components from above;
To form the sheet discharge space between the paper discharge tray, a sheet discharging device Ru comprising a structure which is spaced above the sheet discharge tray, a
The paper discharge tray includes a tray main body having a tray opening disposed above the component, and a tray cover body that opens and closes the tray opening .
The tray opening is disposed at a side end of the tray body,
The paper discharge device includes a housing that houses the components therein and fixes the tray body, and a side cover body that is attached to a side of the housing,
The housing includes a side opening disposed on a side of the component and opened and closed by the side cover body,
The tray opening and the side opening are arranged to communicate with each other,
The side cover body, when closing the side opening, said to hold the tray cover member is in a state of closing the tray openings, the paper discharge apparatus Ru provided with a holding portion for pressing the tray cover.   The paper discharge device according to claim 1, further comprising a restricting portion that restricts movement of the tray main body in order to prevent the tray main body from slipping out of the paper discharge space. Said tray cover has a cover portion for covering the tray opening, protrudes from the cover unit, according to claim 1 wherein said cover portion and a projecting portion for pressing the upper part of the component when covering the tray opening or The paper discharge device according to 2. Comprising the parts,
The component is a fan and the paper discharge device according to any one of claims 1 to 3 at least one of the filter. Comprising the parts,
The part is a fan,
The paper discharge device according to claim 2, wherein the restriction portion is a duct that forms a path of an air flow generated by the fan.

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