JP2010240577A - Filter member and image forming apparatus to which the same is applied - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability in replacement work while it is easy to attach and detach a filter member to/from an objective device. <P>SOLUTION: The filter member 10 is configured to include a filter body 20 that removes an object to be removed in the air by allowing the air to permeate it and a winding member 70 that is wound around a peripheral surface of the filter body 20 with extended in a direction with which the air permeation direction of the filter body 20 intersects perpendicularly, and the winding member 70 is provided with a picking-up piece 60 that is protruded in the detachment direction from the objective device of the filter body 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a filter member that is attached to a target device and performs a cleaning process on air discharged from the target device, and an image forming apparatus as a target device to which the filter member is applied.

  The image forming apparatus is configured to drive and discharge a charger, a static eliminator and the like to execute a predetermined image forming process. By the discharge from the charger, a charging process is performed on the peripheral surface of, for example, a photosensitive drum, which is an image carrier. The charged surface of the photosensitive drum is irradiated with light based on image information to form an electrostatic latent image. A toner image is formed by supplying toner toward the electrostatic latent image. This toner image is transferred to a sheet, subjected to a fixing process, and then discharged to the outside. The charge remaining on the peripheral surface of the photosensitive drum after the transfer process is removed by discharge from the static eliminator. The peripheral surface of the photosensitive drum after charge removal is subjected to the next image forming process.

  By the way, ozone is generated during discharge by a charger or a static eliminator. In order to prevent the ozone from being discharged out of the apparatus main body of the image forming apparatus, an ozone filter is provided at an appropriate position of the apparatus main body. Accordingly, ozone in the air discharged from the apparatus main body to the outside is decomposed by passing through the ozone filter, and discharged as harmless oxygen molecules.

  2. Description of the Related Art Conventionally, an image forming apparatus provided with such an ozone filter is described in Patent Document 1. The ozone filter is mounted between an exterior cover of the apparatus main body of the image forming apparatus and a panel provided at an appropriate position in the apparatus main body. The panel is provided with a filter mounting opening for fitting the rear end of the ozone filter, and the exterior cover is provided with an exhaust opening facing the front end surface of the ozone filter. And the air in an apparatus main body is introduce | transduced in the said ozone filter from the rear-end surface of an ozone filter, after ozone is decomposed | disassembled, it is cleaned and discharged | emitted from the exhaust port of an exterior cover outside.

Japanese Patent Laid-Open No. 2002-304096

  However, in the image forming apparatus described in Patent Document 1, when replacing a deteriorated ozone filter with a new one, for example, it is necessary to remove an exterior cover that is screwed to the apparatus main body from the apparatus main body. There is a problem that workability of the attaching / detaching work is inferior.

  The present invention has been made to solve such a problem, and is a filter member that can be easily attached to and detached from the target device and can improve the workability of replacement work, and image formation to which the filter member is applied. The object is to provide a device.

  The filter member according to the present invention, which has been made to achieve the above object, has a filter body that removes an object to be removed in the air by permeating air, and extends in a direction perpendicular to the air transmission direction of the filter body. A winding member wound around the peripheral surface of the filter main body, and the winding member includes a handle portion protruding in a direction of removing the filter main body from the target device.

  According to such a configuration, the filter main body can be easily removed from the target device by picking the handle portion of the winding member wound around the filter main body with a finger when the filter member is replaced, and pulling the handle portion in the protruding direction. Removed.

  In the above filter member, it is preferable that the filter body has a large number of unit tubes arranged in a honeycomb shape.

  According to such a configuration, the honeycomb filter can significantly reduce the pressure loss when air permeates as compared with a filter paper filter, so that energy (specifically, the air permeate the filter body). In particular, the fan output of the fan device can be suppressed, which contributes to a reduction in running cost.

  Moreover, in these filter members, it is preferable that the filter main body is an ozone filter that removes ozone generated in the target device.

  According to such a configuration, when the target device generates ozone inside, ozone generated in the target device is removed by the ozone filter, so that scattering of ozone to the outside is prevented.

  Said filter member WHEREIN: It is preferable that the said filter main body is a dust collection filter which collects and removes the dust which generate | occur | produced in the said target apparatus.

  According to such a configuration, when the target device generates dust inside, dust generated in the target device is removed by the dust collecting filter, so that scattering of dust to the outside is prevented. .

  In the filter member, it is preferable that the filter body is a VOC filter that removes VOC (volatile organic compounds) generated in the target device.

  According to such a configuration, when the target device generates VOC inside, VOC generated in the target device is removed by the VOC filter, so that scattering of VOC to the outside is prevented.

  In the filter member, the filter main body includes an ozone filter that removes ozone generated in the target device, a dust collection filter that removes dust generated in the target device, and a VOC generated in the target device. It is preferable that any two or all of the VOC filters to be removed are combined.

  According to such a configuration, the filter body can be formed by combining two or all of the ozone filter, the dust collection filter, and the VOC filter as appropriate according to the type of the removal target generated inside the target device. The filter body has general versatility.

  In such a combination of filters, the ozone filter is preferably disposed on the most downstream side in the air permeation direction.

  According to such a configuration, the air discharged from the target device reaches the ozone filter in a state where the dust and VOC are removed by the dust collection filter and / or the VOC filter disposed on the upstream side of the filter member. Therefore, the surface of the ozone filter that comes into contact with the air is not contaminated by dust or VOC. Therefore, the ozone detoxifying catalyst laminated on the surface of the ozone filter that comes into contact with the air functions effectively. The ozone filter always exerts the maximum ozone removal effect.

  In each filter member as described above, the outer peripheral surface side of the winding member is preferably formed of an elastic member.

  According to such a configuration, the filter body can be attached to the attachment site of the filter body formed in the target device without a gap due to the compression elastic deformation of the elastic member. Therefore, it is possible to effectively prevent the inconvenience that the air in the apparatus main body is discharged outside through the gap without being processed in the filter main body.

  Moreover, it is preferable that the said handle part is extended toward the outer side in the direction orthogonal to the said air permeation | transmission direction from the outer peripheral surface of the said winding member.

  In this way, in the case where the filter member is configured to be attached to and detached from the apparatus main body by moving the part of the apparatus main body on which the filter member is mounted in a direction perpendicular to the air flow direction, The filter member can be easily removed from the apparatus main body by pulling the portion in the protruding direction.

  In this case, the winding member is set to have a length longer than the circumferential length of the filter body, and the winding member is wound around the filter body with one end and the other end of the winding member being an extra length portion. It is preferable that the overlapping portion between the other end and the other end is the handle portion.

  By doing so, since the handle portion has a double structure in which one end and the other end of the winding member are laminated, it is difficult to cause inconveniences such as breaking when pulled.

  On the other hand, the said handle part may be extended toward the outer side along the said air permeation | transmission direction from the side edge part of the said winding member. In this way, when the filter member can be attached and detached by operating in the direction facing the operator, the filter member can be easily removed from the apparatus main body by pulling the handle portion in the direction of the operator. The operability is improved.

  In such a case, it is preferable that the elastic member is set to have a width dimension larger than a thickness dimension of the filter body. By doing so, the elastic member can be protruded to one or both of the upstream side and the downstream side in the air permeation direction of the filter main body. Therefore, the protruding portion is pressed against the wall surface of the target device to protrude. It is possible to close the gap by elastically deforming the portion. This effectively prevents leakage of contaminated air contaminated by ozone or dust to the outside.

  On the contrary, the elastic member may have a width dimension set smaller than a thickness dimension of the filter body. That is, for example, when the filter member is fitted in the cylinder body provided in the apparatus main body in a sliding contact state, the short-circuit of the air simply occurs when the outer peripheral surface of the filter member is in close contact with the inner peripheral surface of the cylinder body. Since leakage is prevented, it is not necessary to increase the width dimension more than necessary. This contributes to cost reduction of the elastic member while ensuring prevention of air leakage.

  An image forming apparatus according to the present invention includes a charging device that uniformly charges the surface of an image carrier, and a light based on image information on the surface of the image carrier that is uniformly charged by the charging device. And an developing device for supplying toner to the electrostatic latent image formed by the exposure device to form a toner image, and each of the filter members. Either one is adopted.

  According to the image forming apparatus having such a configuration, ozone generated by driving the charging device in the image forming apparatus, toner scattered when the toner is supplied from the developing device to the image carrier, or VOC which is one component of the toner. The object to be removed such as the vaporized vapor is removed by a filter member provided in the image forming apparatus. Accordingly, it is possible to prevent the occurrence of inconvenience that ozone, toner, or VOC leaks from the image forming apparatus to the outside and contaminates the atmosphere around the image forming apparatus.

  In such an image forming apparatus, a filter mounting frame on which the filter member is detachably mounted is attached to the apparatus main body, and the filter mounting frame is orthogonal to the air flow direction of the filter member. You may make it have the insertion / removal opening which can insert / remove the said filter member by moving toward a direction. By carrying out like this, the said filter member can be attached or detached with respect to an apparatus main body by moving a filter member in parallel with the outer wall surface of an apparatus main body. Therefore, the filter member can be attached / detached even when another device is installed adjacent to the attachment / detachment position of the filter member, which is advantageous in terms of the device layout.

  On the other hand, the filter mounting frame may have an insertion / removal opening through which the filter member can be inserted / removed by moving the filter member in the air flow direction. By doing so, since the insertion / removal opening is present in front of the operator's eyes, the insertion / removal operation of the filter member to the filter mounting frame is facilitated.

  In addition to these, a plurality of mounting cylinders for mounting the filter member may be provided on the wall surface of the apparatus main body in the filter mounting frame. By doing so, a plurality of filter members can be attached to the apparatus main body, and the number of attachments can be increased or decreased depending on the situation. Therefore, it becomes possible to employ a necessary and sufficient filter member, and waste can be eliminated.

  According to the filter member of the present invention, the handle portion of the winding member wound around the filter main body with the filter main body mounted on the target device is picked with a finger and pulled toward the direction in which the handle portion protrudes. Thus, the filter body can be easily detached from the target device, and as a result, the workability of the filter member replacement work can be greatly improved.

  According to the image forming apparatus of the present invention, since the filter member according to the present invention is attached to the image forming apparatus, ozone, toner, VOC, etc. generated inside the image forming apparatus can be removed by the filter member. it can. Therefore, it is possible to effectively prevent the occurrence of inconvenience that ozone, toner, VOC, etc. leak to the outside and contaminate the atmosphere around the image forming apparatus.

It is a perspective view which shows the filter member of 1st Embodiment which concerns on this invention, (A) is a disassembled perspective view, (B) is an assembly perspective view. FIG. 3 is an enlarged explanatory view in front sectional view for explaining a honeycomb structure of a container body which is a component of a filter member. It is a perspective view which shows the filter member of 2nd Embodiment which concerns on this invention, (A) is a disassembled perspective view, (B) is an assembly perspective view. It is a perspective view which shows the filter member of 3rd Embodiment which concerns on this invention, (A) is a disassembled perspective view, (B) is an assembly perspective view. 1A and 1B are perspective views of an external appearance showing an embodiment of an image forming apparatus to which a filter member is applied, wherein FIG. 1A is a perspective view seen from the front side, and FIG. 2B is a perspective view seen from the rear side. . It is explanatory drawing of front sectional view for demonstrating the internal structure of an image forming apparatus. FIG. 2 is an exploded perspective view showing an exhaust unit according to the first embodiment provided in the image forming apparatus. FIG. 8 is an assembled perspective view of the exhaust section shown in FIG. 7, showing a state where the filter member of the first embodiment is being attached to the filter attachment frame. FIG. 8 is an assembled perspective view of the exhaust section shown in FIG. 7, showing a state where the filter member is mounted on the filter mounting frame. It is a perspective view which shows the exhaust part which concerns on 2nd Embodiment provided in the image forming apparatus 90, and has shown the state just before mounting a filter member to a frame main body. The exhaust part shown in FIG. 11 shows a state immediately after the filter member is mounted on the frame body. The exhaust part shown in FIG. 12 has shown the state by which the cover body was closed. It is a perspective view which shows the exhaust part which concerns on 3rd Embodiment, (A) has shown the state by which the cover body was open | released, (B) has each shown the state by which the cover body was closed. It is an enlarged view of front sectional view showing other embodiments of the honeycomb structure applied to the filter body.

  The filter members 10, 10 'and 10 "of the first to third embodiments according to the present invention will be described below with reference to Figs. 1 to 4. Fig. 1 shows the filter member of the first embodiment according to the present invention. Fig. 1 (A) is an exploded perspective view, Fig. 1 (B) is an assembled perspective view, and Fig. 2 is a honeycomb structure of a filter body 20 which is a component of the filter member 10. Fig. 1 is an enlarged explanatory view of a front cross-sectional view for explaining the thickness of the peripheral covering band 30 and the elastic covering member 40 (particularly the peripheral covering band 30). .

  First, the filter member 10 according to the first embodiment is of a type in which the filter member 10 is attached to and detached from a predetermined target device by moving it in the longitudinal direction (direction orthogonal to the air permeation direction). It is. As shown in FIG. 1A, the filter member 10 includes a filter main body 20 having a rectangular parallelepiped shape that removes an object to be removed contained in the gas by allowing the gas to flow (permeate), and the filter main body 20. A peripheral covering band (wrapping member) 30 that covers the entire periphery of the outer periphery, an elastic covering member (elastic member) 40 that covers the entire outer surface of the peripheral covering band 30, and the elastic covering member 40. A plate-shaped reinforcing member 50 extending in the longitudinal direction that further covers the upper surface of the device and a gripping piece (handle portion) 60 that is gripped during the attaching / detaching operation with respect to the target device.

  In the first embodiment, the winding member 70 according to the first embodiment that is wound around the periphery of the filter main body 20 in a headband shape by the peripheral covering band body 30 and the elastic covering member 40 is formed.

  In the present embodiment, the filter body 20 employs a so-called honeycomb filter in which a large number of unit tubes are arranged in a honeycomb shape. As shown in FIG. 2, the filter main body 20 has a regular hexagonal shape when viewed from the front, and a large number of regular hexagonal cylinders (unit cylinders) 2011 extending in a direction orthogonal to the paper surface of FIG. , A rim material 202 provided so as to cover the peripheral surface of the honeycomb substrate 201, and a laminated material layer 203 laminated on the inner peripheral surface of each regular hexagonal cylinder 2011. Configured.

  The honeycomb substrate 201 allows gas to be processed to flow through, and in this embodiment, the honeycomb substrate 201 is formed by subjecting a thick paper material to a predetermined forming process. However, the honeycomb substrate 201 is not limited to a paper material, and may be a nonwoven fabric or a synthetic resin.

  The rim member 202 is used to improve the shape retention by making the filter body 20 structurally strong. In this embodiment, the same material as that of the honeycomb substrate 201 is used as the rim member 202, but it may be formed of a different material. Such an edge material 202 is adhered or adhered to the peripheral surface of the honeycomb substrate 201 via an adhesive or an adhesive.

  The laminated material layer 203 is determined according to the type of the removal target contained in the gas flowing through the regular hexagonal cylinder 2011. When the object to be removed is dust such as scattered toner, for example, a charge opposite to the charge held by the dust may be applied to the honeycomb substrate 201. By doing so, the dust in the gas flowing through the regular hexagonal cylinder 2011 is electrostatically adsorbed on the inner peripheral surface of the regular hexagonal cylinder 2011, thereby dramatically improving the dust removal efficiency. Can do.

  Incidentally, an adhesive removal method may be employed instead of the electrostatic adsorption removal method or together with the electrostatic adsorption removal method in order to remove dust by adhesion. In this case, a laminated material layer 203 in which a predetermined adhesive is laminated on the inner surface side of the regular hexagonal cylinder 2011 is provided. By doing so, the dust contained in the gas flowing through the regular hexagonal cylinder 2011 adheres to the laminated material layer 203, thereby removing the dust in the gas.

Further, when the object to be removed by the filter body 20 is ozone, powdered activated carbon is employed as the laminated material layer 203. Activated carbon has an excellent catalytic function for decomposing ozone. When ozone in the air comes into contact with the activated carbon, ozone (O ₃ ) is immediately decomposed, and a chemical reaction “2O ₃ → 3O ₂ ” occurs to form oxygen molecules.

  Incidentally, in order to laminate the powdered activated carbon on the inner peripheral surface of the regular hexagonal cylinder 2011, an adhesive layer is formed by spraying an adhesive on the inner peripheral surface of the regular hexagonal cylinder 2011, and then the adhesive layer The powdered activated carbon is sprayed on top. By doing so, the laminated material layer 203 is formed in which the powdered activated carbon is laminated on the inner peripheral surface of the regular hexagonal cylinder 2011 through the adhesive layer.

  In addition, as a catalyst for decomposing | disassembling ozone, manganese oxide, lead oxide, further platinum powder etc. can be mentioned besides powdered activated carbon.

  In the present embodiment, the filter main body 20 targets both dust (for example, scattered toner in which toner used in the image forming apparatus is scattered) and air containing ozone, and both dust and ozone contained in the air. What is comprised so that may be removed is employ | adopted. In order to achieve such an object, the filter main body 20 is provided on the upstream side of the flow path through which the dust airflow is circulated (in the example shown in FIG. 1, the airflow is as shown in FIG. The filter is formed in a two-layer structure including a dust filter 21 that is arranged to flow from the rear to the front of the ozone filter 22 and an ozone filter 22 that is disposed in a stacked state on the downstream side of the dust filter 21. Has been.

  The reason why the dust filter 21 is provided on the upstream side of the air flow and the ozone filter 22 is provided on the downstream side is as follows.

  That is, first, the ozone filter 22 decomposes ozone by the action of a catalyst such as activated carbon that forms the laminated material layer 203. Therefore, the surface of the laminated material layer 203 is covered with an adsorbed material such as dust. It is necessary not to be broken. Therefore, the ozone filter 22 is provided on the downstream side of the dust collection filter 21. By doing so, since the air in which the dust has been removed by the dust filter 21 is supplied to the ozone filter 22, there is a disadvantage that the ozone filter 22 is covered with the dust and cannot exhibit a catalytic action. Is prevented.

  Incidentally, when the dust is mainly composed of carbon black, the carbon black may act as a catalyst for decomposing ozone. In this case, in particular, the ozone filter 22 is placed on the most downstream side. It does not have to be provided.

  In the present embodiment, the peripheral coating strip 30 is formed of a film made of a synthetic resin (for example, PET (polyethylene terephthalate)). In the peripheral covering band 30, a PET film or the like cut so that the width dimension is the same as the thickness dimension of the filter body 20 is wound around the peripheral surface of the filter body 20.

  In a predetermined corner portion (upper right corner portion in the example shown in FIG. 1) of such a peripheral covering band body 30, a direction perpendicular to the extending direction of the black arrow in FIG. A pair of upper and lower laterally extending portions 31 extending toward the right side) is provided.

  And the adhesive layer 32 to which the adhesive was apply | coated is formed in the inner surface side and outer surface side of the peripheral coating strip 30. FIG. A release layer (not shown) is laminated on each pressure-sensitive adhesive layer 32. When the peripheral coating strip 30 is laminated on the peripheral surface of the filter body 20, the release layer on the inner surface side is peeled off, and the peripheral coating strip When the elastic covering member 40 is laminated on the outer surface 30, the outer side peeling layer is peeled off.

  The elastic covering member 40 is formed in a band shape by a so-called sponge, which is a porous material made of natural or foamable synthetic resin, and is laminated along the entire outer peripheral surface of the peripheral covering band 30. Accordingly, in a state where the filter member 10 is mounted on a filter mounting frame 84 (FIG. 9), which will be described later, of the target device, a gap between the filter member 10 and the inner peripheral surface of the filter mounting frame 84 is filled. It is possible to prevent short circuit leakage of the airflow through the. Such an elastic covering member 40 is provided with a pair of side extending portions 41 that correspond to the pair of side extending portions 31 of the peripheral covering strip 30 and sandwich the side extending portions 31 from above and below. .

  Further, the elastic covering member 40 is set so that the width dimension is slightly wider than the width dimension of the peripheral covering strip 30. As a result, in the state in which the elastic covering member 40 covers the peripheral surface of the peripheral covering strip 30, as shown in FIG. Has been. Then, in a state where the filter member 10 is inserted into a filter mounting frame 84 (FIG. 9) described later, the projecting edge portion 42 is compressed and elastically deformed and pressed against the inner wall surface of the filter mounting frame 84 of the target device. By abutting, short circuit leakage of untreated air is prevented.

  The gripping piece 60 is for gripping with a finger when the filter member 10 is attached to or detached from the target device, and the outer periphery covering band (wrapping member) 30 is outward from the outer peripheral surface in a direction perpendicular to the air transmission direction. It is formed by extending. Specifically, the peripheral coating strip 30 is set to have a length longer than the circumferential length of the filter body 20, and is wound around the filter body 20 with one end and the other end of the peripheral coating strip 30 as extra length portions. The overlapping portion of the one end and the other end is used as a gripping piece (handle portion) 60.

  Incidentally, in the present embodiment, the upper surface of the elastic covering member 40 including the extending portion (extra length portion) 31 that is a part of the peripheral covering band body 30 and the extending portion 41 that is a part of the elastic covering member 40. The holding piece 60 is formed by laminating the reinforcing member 50 laminated over the entire length.

  The gripping piece 60 leaves the base end portion by a predetermined length and winds the peripheral covering band 30 around the peripheral surface of the filter main body 20 from the upper right corner of the filter main body 20 in FIG. An elastic covering member 40 that protrudes outward from the corner of the filter main body 20 by the same length as the portion, and is laminated and adhered on the peripheral covering strip 30 and then elastically coated. By laminating the reinforcing member 50 on the upper surface of the member 40, the upper right corner of the filter body 20 is formed. When the filter member 10 is attached to and detached from the filter mounting frame 84, the gripping piece 60 is gripped.

  As described above, when the filter member 10 of the first embodiment is attached to and detached from the target device by horizontal movement, the attaching and detaching operation can be easily performed from the target device by holding the holding piece 60 and inserting and removing it. Can be pulled out.

  FIG. 3 is a perspective view showing a filter member 10 ′ according to the second embodiment of the present invention, FIG. 3 (A) is an exploded perspective view, and FIG. 3 (B) is an assembled perspective view.

  The filter member 10 ′ of the second embodiment is of a type that can be attached to and detached from the target device by rotating the filter member 10 ′ with the lower end portion as a fulcrum. The filter of the first embodiment Like the member 10, it is formed in a flat rectangular shape. The filter member 10 ′ is that the gripping piece (handle part) 60 ′ is provided substantially at the upper center of the filter member 10 ′ in the left-right direction (longitudinal direction) in FIG. 3 according to the first embodiment. 10 and different. Other parts of the filter member 10 'of the second embodiment are substantially the same as those of the first embodiment.

  That is, the gripping piece 60 ′ of the second embodiment is basically extended from the side edge of the peripheral coating strip (wrapping member) 30 ′ along the air transmission direction. In the present embodiment, from the central portion in the left-right direction of the upper portion of the peripheral coating strip (winding member) 30 'to the rear (in the direction orthogonal to the longitudinal direction of the filter member 10' and on the left side of the filter body 20 in FIG. Direction) and a second protrusion 51 ′ protruded rearward from the rear edge of the reinforcing member 50 ′ so as to correspond to the first protrusion 31 ′. And an intermediate projecting portion 41 ′ projecting rearward from the elastic covering member (elastic member) 40 ′ so as to correspond to the first and second projecting portions 31 ′ and 51 according to the second embodiment. A gripping piece 60 'is formed.

  In the filter member 10 ′ of the second embodiment, the winding member 70 ′ according to the present invention is formed by the peripheral covering strip 30 ′ and the elastic covering member 40 ′.

  According to the filter member 10 ′ of the second embodiment, the filter member 10 ′ is mounted on a filter mounting frame 84 ′ (see FIG. 11) described later provided on the outer surface side of the side wall of the target device. By grasping the gripping piece 60 ′ with a finger and pulling it toward the operator, the filter member 10 ′ is rotated toward the operator with the appropriate position of the lower edge as a fulcrum, thereby the filter mounting frame. Since it is easily pulled out from the body 84 ', it is possible to improve the workability of taking out the filter member 10' once mounted.

  FIG. 4 is a perspective view showing a filter member 10 ″ according to a third embodiment of the present invention, FIG. 4 (A) is an exploded perspective view, and FIG. 4 (B) is an assembled perspective view.

  The filter member 10 ″ of the third embodiment is regarded as a modification of the filter member 10 ′ of the second embodiment. First, the filter body 20 ′ is the same as the dust filter 21 ′ having a square shape in front view. The ozone filter 22 'having a shape is laminated to form a regular quadratic columnar filter body 20'. The area of the filter body 20 'in a cross-sectional view perpendicular to the air flow direction is the same as that of the second embodiment. It is set to approximately 1/3 of the cross-sectional area.

  Accordingly, the peripheral covering band (winding member) 30 ″ and the elastic covering member (elastic member) 40 ″ are also formed in a regular rectangular tube shape corresponding to the filter body 20 ′. In the filter member 10 ″ of the third embodiment, the winding member 70 ″ according to the present invention is formed by the peripheral covering band 30 ″ and the elastic covering member 40 ″.

  Further, as the filter member 10 ″ of the third embodiment is different from the filter member 10 ′ of the second embodiment, the intermediate projecting portion 41 ′ and the second projecting portion 51 are not employed as the gripping pieces. It can be mentioned that the gripping piece (handle part) 60 ″ is formed only by the one corresponding to the first protrusion 31 ′ of the second embodiment.

  Furthermore, it can be mentioned that the filter member 10 ″ of the third embodiment has the width dimension of the elastic covering member 40 ″ set slightly shorter than the width dimension of the peripheral covering band 30 ″. As will be described later with reference to FIG. 13, the filter member 10 ″ is attached to and detached from the mounting cylinder 85 by moving forward and backward in the air flow direction. This is because the elastic covering member 40 ″ only needs to exist on the peripheral surface of 30 ″, and it is not necessary to protrude the elastic covering member 40 ″ from the peripheral covering band body 30 ″ toward the air flow direction.

  Hereinafter, a target apparatus to which such filter members 10, 10 ′, and 10 ″ are applied will be described with reference to FIGS. 5 and 6. In this embodiment, an image forming apparatus is applied as the target apparatus. FIG. 5 is an external perspective view showing an embodiment of the image forming apparatus 90 to which the filter members 10 and 10 ′ are applied. FIG. 5A is a perspective view seen from the front side, and FIG. Fig. 6B is a perspective view as seen from the rear side, and Fig. 6 is a front sectional view for explaining the internal structure of the image forming apparatus 90. In Figs. The X direction is referred to as the left-right direction, and the Y direction is referred to as the front-rear direction.

  First, an image forming apparatus (target apparatus) 90 shown in FIG. 5 is a so-called in-body discharge type copier. The apparatus main body 91 includes an image forming unit 92, a fixing unit 93, and a sheet storage unit 94. A paper discharge unit 95, an image reading unit 96, and an operation unit 97 are formed. A part of the apparatus main body 91 is recessed below the image reading unit 96 to form the paper discharge unit 95, which is why the image forming apparatus 90 is referred to as an in-body paper discharge type. .

  The apparatus main body 91 includes a lower main body 911 that has a rectangular parallelepiped shape in appearance, an upper main body 912 that has a flat rectangular parallelepiped shape disposed above the lower main body 911, and the upper main body 912 and the lower main body 911. And a connecting body 913 interposed therebetween. The connecting body 913 is a structure for connecting the paper discharge section 95 between the lower main body 911 and the upper main body 912, and is erected from the left portion of the lower main body 911. Yes. The upper main body 912 is supported at the upper end of the connecting body 913 at the left.

  The lower body 911 includes an image forming unit 92, a fixing unit 93, and a sheet storage unit 94, and an image reading unit 96 is mounted on the upper body 912. In the present embodiment, the operation portion 97 is projected forward from the front edge portion of the upper body 912.

  The paper discharge unit 95 is formed between the lower main body 911 and the upper main body 912. The paper discharge unit 95 has an in-cylinder discharge tray 951 formed on the upper surface of the lower main body 911, and the paper P onto which the toner image from the image forming unit 92 has been transferred is transferred from the lower part of the connecting body 913 to the cylinder P. The sheet is discharged toward the inner discharge tray 951.

  Hereinafter, the image forming unit 92 will be described with reference to FIG. The image forming unit 92 forms a toner image on the paper P fed from the paper storage unit 94, and is sequentially arranged from the upstream side (right side) to the downstream side as shown in FIG. A magenta image forming unit 92M, a cyan image forming unit 92C, a yellow image forming unit 92Y, and a black image forming unit 92K.

  Each of the image forming units 92M, 92C, 92Y, and 92K is provided with a photosensitive drum (image carrier) 921 and a developing device 922, respectively. Each photosensitive drum 921 is supplied with toner from a corresponding developing device 922 while rotating counterclockwise in FIG. Each developing device 922 is replenished with toner from a toner cartridge (not shown) disposed on the front side of the apparatus main body 91 (the front side of the paper surface of FIG. 6).

  A charging device 923 is provided immediately below each photosensitive drum 921, and an exposure device 924 is provided further below each charging device 923. Each photosensitive drum 921 is charged uniformly by the charging device 923, and laser light corresponding to each color based on the image data read by the image reading unit 96 is charged from each exposure device 924. By irradiating the peripheral surface of each photoconductive drum 921, an electrostatic latent image is formed on the peripheral surface of each photoconductive drum 921. By supplying toner from the developing device 922 to the electrostatic latent image, a toner image is formed on the peripheral surface of the photosensitive drum 921.

  A transfer belt 925 is provided above the photoconductive drum 921 so as to be in contact with each photoconductive drum 921. The transfer belt 925 is wound around a drive roller 925a provided at the left position in FIG. 6 and a driven roller 925b provided at the right position.

  The transfer belt 925 is driven against the peripheral surface of the photosensitive drum 921 by a transfer roller 925c provided corresponding to each photosensitive drum 921, and is driven with a driving roller 925a and a driven roller while being synchronized with the photosensitive drum 921. Circulate between 925b.

  Accordingly, when the transfer belt 925 rotates, the magenta toner image is transferred onto the surface of the transfer belt 925 by the photosensitive drum 921 of the magenta image forming unit 92M, and then the cyan image forming unit 92C is placed at the same position on the transfer belt 925. The cyan toner image is transferred onto the photosensitive drum 921 in the overcoating state, and then the yellow toner image is transferred onto the same position of the transfer belt 925 from the photosensitive drum 921 of the yellow image forming unit 92Y. Then, the transfer of the black toner image by the photosensitive drum 921 of the last black image forming portion 92K is performed in the overcoating state.

  As a result, a color image is formed on the surface of the transfer belt 925. The color image formed on the surface of the transfer belt 925 is transferred to the paper P conveyed from the paper storage unit 94.

  A drum cleaning device 926 that removes and cleans residual toner on the peripheral surface of the photosensitive drum 921 is provided at the left position in FIG. 6 of each photosensitive drum 921. The peripheral surface of the photosensitive drum 921 cleaned by the drum cleaning device 926 goes to the charging device 923 for a new charging process.

  Waste toner removed from the peripheral surface of the photosensitive drum 921 by the drum cleaning device 926 is collected in a toner collection bottle (not shown) through a predetermined path.

  A sheet conveyance path 927 extending in the vertical direction is provided at the left position of the image forming unit 92. The sheet conveying path 927 is provided with a pair of conveying rollers 927a at appropriate positions, and the sheet P from the sheet storage unit 94 is directed to the transfer belt 925 that is wound around the driving roller 925a by the driving of the conveying roller pair 927a. Be transported.

  A second transfer roller 928 that is in contact with the surface of the transfer belt 925 is provided on the sheet conveyance path 927 at a position facing the driving roller 925 a, and the sheet P being conveyed through the sheet conveyance path 927 is in contact with the transfer belt 925. The toner image on the transfer belt 925 is transferred onto the paper P by being pressed and nipped by the second transfer roller 928.

  A belt cleaning device 925d (not shown) that removes residual toner remaining on the surface of the transfer belt 925 is provided on the right side of the transfer belt 925. Residual toner on the surface is removed by the belt cleaning device 925d and cleaned, and circulated toward the next transfer process.

  The fixing unit 93 performs a fixing process on the toner image on the paper P transferred by the image forming unit 92. The fixing unit 93 includes a fixing roller 931 including an energization heating element such as a halogen lamp as a heating source. And a pressure roller 932 disposed opposite to the fixing roller 931 on the left side. Then, the transfer-processed paper P derived from the image forming unit 92 via the second transfer roller 928 is pressed and sandwiched between the fixing roller 931 and the pressure roller 932, and the toner image is heated by the fixing roller 931. Is fixed, and a stable color image is formed on the paper P.

  The color-printed paper P that has undergone the fixing process passes through a paper discharge conveyance path 929 extending from the upper part of the fixing unit 93 and is discharged toward the in-body paper discharge tray 951 through a pair of discharge rollers 952. .

  The paper storage unit 94 has a paper feed tray 941 that is detachably mounted at a position below the exposure device 924 in the apparatus main body 91. A sheet bundle is stored in the sheet feed tray 941. Then, the sheet P is fed out from the sheet bundle stored in the sheet feed tray 941 one by one by the driving of the pickup roller 942, and introduced into the image forming unit 92 through the sheet conveyance path 927.

  The image reading unit 96 presses the contact glass 961 mounted on the upper surface opening of the upper main body 912 on which the document P1 is placed and the document placed on the contact glass 961. A document holding mat 962 that can be freely opened and closed with respect to the contact glass 961, and an optical system unit 963 housed in the upper body 912 for reading the document image of the document P1 placed on the contact glass 961. I have.

  The optical system unit 963 scans a document image from the document surface by moving the light source 964 from below through the contact glass 961 in a state where the document placed on the contact glass 961 is pressed by the document pressing mat 962. It is read by a CCD (charge coupled device) 165 by the reflected light. Image information of the document read by the CCD 165 is output to the exposure device 924 of the image forming unit 92 after being digitized.

  The operation unit 97 is used to input various items (paper size, number of processing copies, etc.) related to image forming processing. As shown in FIG. 5, the operation unit 97 includes a start key 971, a numeric keypad 972 for inputting numerical information, and an LCD (Liquid crystal display) for displaying input information, error messages, and the like by the numeric keypad 972 actually performed. ) 973 and the like are provided.

  In the present embodiment, the lower body is located on the back side (see FIGS. 5B and 6) in the lower body 911 of the image forming apparatus 90 configured as described above and above the fixing unit 93. The exhaust member 80, 80 ', 80 "is configured to suck the air in 911 and remove the scattered toner and ozone by the filter members 10, 10', 10", and then discharge the air to the outside. Yes. The exhaust units 80, 80 ', 80 "are provided in the vicinity of the fixing unit 93 so that the airflow is passed through the fixing unit 93 and the fixing unit 93 is cooled in accordance with the removal processing of the scattered toner and ozone. This is so that it can be applied.

  On the other hand, the back plate 914 of the apparatus main body 91 is provided with an exhaust port 915 (FIG. 7) at a position corresponding to the exhaust portions 80, 80 ′, 80 ″. The toner and ozone contained in the exhaust gas are exhausted from the exhaust port 915 through the portions 80 and 80 ', and the filter members 10, 10' and 10 "mounted so as to close the exhaust port 915 at this time. Removed.

  Hereinafter, the exhaust unit 80 according to the first embodiment provided in the image forming apparatus 90 will be described with reference to FIGS. FIG. 7 is an exploded perspective view showing the exhaust unit 80 according to the first embodiment. 8 and 9 are assembled perspective views of the exhaust part 80 shown in FIG. 7, and FIG. 8 is a diagram showing a state in which the filter member 10 of the first embodiment is being mounted on the filter mounting frame 84. FIG. Reference numeral 9 denotes a state where the filter member 10 is mounted on the filter mounting frame 84. 7 to 9 are the same as those shown in FIG. 5 (-X: leftward, + X: rightward, -Y: forward, + Y: backward).

  The exhaust member 80 of the first embodiment is the one to which the filter member 10 (FIG. 1) of the first embodiment is applied. As shown in FIG. 7, the exhaust unit 80 includes a sickro fan device (exhaust means) 81, a drive motor 82 that drives and rotates a fan (not shown) in the cicocolon fan device 81, and a device main body that is sucked by the drive rotation of the cigarette fan. The exhaust duct 83 extended toward the exhaust port 915 to exhaust the air in 91 to the outside, and the filter member 10 attached to the back plate 914 of the apparatus main body 91 so as to cover the exhaust port 915 are mounted. And a filter mounting frame 84 for the purpose.

  The casing of the cigarette fan device 81 is provided with a suction cylinder 811 concentric with the drive motor 82 protruding from the surface opposite to the surface on which the drive motor 82 is provided. Air in the apparatus main body 91 of the image forming apparatus 90 is sucked into the sickro fan device 81 through the suction cylinder 811.

  The filter mounting frame 84 has a rectangular louver plate 841 having a louver 841a in which a plurality of elongated ventilation openings are arranged side by side, and is projected from the lower edge of the louver plate 841 toward the back plate 914. A bottom plate 842 that is long in the left-right direction, a top plate 843 that is long in the left-right direction protruding from the upper edge of the louver plate 841 toward the back plate 914, and a back plate 914 from the right edge of the louver plate 841. And a right side plate 844 extending in the vertical direction.

  A mounting space V in which the filter member 10 is mounted is formed by a space surrounded by the louver plate 841, the bottom plate 842, the top plate 843, and the right side plate 844. The mounting space V has an inner peripheral surface dimension slightly larger than the outer peripheral dimension of the filter main body 20 including the peripheral covering band 30 and slightly smaller than the outer peripheral dimension of the filter main body 20 including the elastic covering member 40. Is set. An insertion / removal opening 845 for inserting / removing the filter member 10 is provided on the left side of the filter mounting frame 84.

  Through holes 841b are formed in the four corners of the filter mounting frame 84 to allow the screws B to penetrate in the front-rear direction. On the other hand, screw holes 914a for screwing screws B are screwed in the back plate 914 in positions near the four corners of the exhaust port 915 and corresponding to the through holes 841b.

  Accordingly, the side on which the bottom plate 842 and the like of the filter mounting frame 84 is formed is brought into contact with the back plate 914, and the screws B are passed through the respective through holes 841b in correspondence with the corresponding screw holes 914a. The filter mounting frame 84 is fixed to the back plate 914 of the apparatus main body 91 as shown in FIG. 8 by being inserted into the holes 841b and screwed into the screw holes 914a.

  When the filter member 10 is mounted on the filter mounting frame 84, as shown in FIG. 8, the end of the filter member 10 opposite to the gripping piece 60 (the right end) is the filter mounting frame. The body 84 is inserted into the insertion / removal opening 845. Then, the filter member 10 is pushed into the mounting space V of the filter mounting frame 84 while the elastic covering member 40 is compressed and elastically deformed.

  When the filter member 10 is pushed all the way into the filter mounting frame 84, the elastic covering member 40 is compressed and elastically deformed and presses the louver plate 841 of the filter mounting frame 84 and the back plate 914 of the apparatus main body 91. As a result, the peripheral portion of the filter member 10 is in a sealed state, so that leakage of air from the peripheral portion of the filter member 10 is reliably prevented. Therefore, the air in the device main body 91 sucked into the cigarette fan device 81 does not pass through the filter main body 20 of the filter member 10 (that is, in a short-circuit state in which the removal target in the air is not removed). It is possible to effectively prevent the occurrence of inconvenience that is discharged to the outside.

  Further, when the filter member 10 is pushed into the filter mounting frame 84, the gripping piece 60 protrudes from the insertion / removal opening 845 to the outside as shown in FIG. Therefore, it is possible to easily pull out the filter member 10 by gripping the gripping piece 60 with a finger when replacing the filter member 10, thereby improving the workability of the old and new replacement work of the filter member 10. it can.

  Next, the exhaust part 80 'of the second embodiment will be described based on FIGS. 10 to 12 with reference to other drawings as required. 10 to 12 are perspective views showing an exhaust part 80 'according to the second embodiment. FIG. 10 is a state immediately before the filter member 10' is mounted on the frame body 846. FIG. FIG. 12 shows a state immediately after the member 10 ′ is attached to the frame body 846, and FIG. 12 shows a state in which the lid 847 is closed after the filter member 10 ′ is attached to the frame body 846. 10 to 12 are the same as those shown in FIG. 5 (−X: leftward, + X: rightward, −Y: forward, + Y: backward).

  The exhaust part 80 'of the second embodiment is configured for the purpose of mounting the filter member 10' (FIG. 3) of the second embodiment. The exhaust part 80 'is the same as that of the first embodiment with respect to the sickro fan device 81, the drive motor 82 and the exhaust duct 83, but the filter mounting frame 84' is different from that of the first embodiment. Yes.

  The filter mounting frame 84 ′ has a rectangular frame body 846 on which the filter member 10 ′ is detachably mounted, and a lid 847 that is attached to the rear side of the frame body 846 so as to be openable and closable. It is configured with. The frame body 846 is set in a similar shape to the filter member 10 '. The inner dimension in the circumferential direction of the frame body 846 is set slightly smaller than the outer dimension in the circumferential direction of the filter member 10 ′, and the amount of protrusion of the frame body 846 from the back plate 914 is determined by the filter member. It is set slightly smaller than the thickness dimension of 10 '.

  On the other hand, the exhaust port 915 provided in the back plate 914 of the apparatus main body 91 is substantially similar to the frame main body 846 and is set slightly smaller than the inner dimension of the frame main body 846. The frame body 846 is fixed to the back plate 914 by screws with the exhaust port 915 included.

  The lid body 847 has a pair of left and right hinges 847a projecting forward at the left and right edges of the lower end thereof. The pair of hinges 847a are pivotally supported around the support shaft 847b while sandwiching the lower rear end of the frame body 846, and are rotated forward and backward around the support shaft 847b as shown in FIG. The posture can be changed between the open posture shown and the closed posture shown in FIG.

  In addition, a knob 847c that protrudes rearward for opening and closing the lid body 847 is provided at the center upper portion of the lid body 847 in the left-right direction, and an upper front edge portion and a frame of the lid body 847 are provided. Magnet pieces 847e that are attracted to each other are provided on the upper edge of the rear surface of the body main body 846, respectively. Therefore, by closing the lid 847, the pair of magnet pieces 847e are attracted to each other, so that the closed state of the lid 847 is stabilized.

  The lid 847 is provided with a louver 847d through which air is circulated, and the air that has passed through the filter member 10 'is discharged to the outside through the louver 847d.

  According to the filter mounting frame 84 ′ of the second embodiment configured as described above, the filter member of the second embodiment as shown by the black arrow in FIG. 10 with the lid 847 opened. When 10 ′ is mounted in the frame body 846, the elastic covering member 40 ′ surrounding the filter body 20 is compressed and elastically deformed as shown in FIG. 11, thereby the outer peripheral surface of the filter member 10 ′ and the frame body 846 are compressed. Is brought into close contact with the inner peripheral surface via the elastic covering member 40 '. Therefore, it is possible to effectively prevent untreated air containing the removal target from leaking outside through the gap between the outer peripheral surface of the filter member 10 ′ and the inner peripheral surface of the frame body 846. .

  When the filter member 10 'is replaced with a new one, as shown in FIG. 11, when the lid 847 is opened, the gripping piece 60' protrudes outward. The filter member 10 ′ can be easily detached from the frame body 846 by picking 60 ′ with a finger and pulling it forward.

  Next, the exhaust part 80 ″ of the third embodiment will be described based on FIG. 13 with reference to other drawings as necessary. FIG. 13 is a perspective view showing the exhaust part 80 ″ according to the third embodiment. FIG. 13A shows a state in which the lid body 847 ′ is opened, and FIG. 13B shows a state in which the lid body 847 ′ is closed. The direction display by X and Y in FIG. 13 is the same as in FIG. 5 (−X: leftward, + X: rightward, −Y: forward, + Y: backward).

  The exhaust part 80 ″ of the third embodiment is for mounting the filter member 10 ″ (FIG. 4) of the third embodiment. The exhaust portion 80 ″ is the same as that of the second embodiment with respect to the sickro fan device 81, the drive motor 82, and the exhaust duct 83, but the filter mounting frame 84 ″ is more lateral than that of the second embodiment. The point set to elongate is different from the thing of 2nd Embodiment.

  The filter mounting frame 84 ″ according to the third embodiment includes a plurality (see FIG. 13) for mounting the filter member 10 ″ on a portion of the back plate 914 of the apparatus main body 91 surrounded by the frame main body 846 ′. In the example, three) mounting cylinders 85 are provided. These mounting cylinders 85 extend from the back plate 914 into the exhaust duct 83. Then, the air sucked by the sickro fan device 81 is directed to each mounting cylinder 85 through the exhaust duct 83.

  The filter member 10 "is mounted on each of the mounting cylinders 85. The mounting cylinder 85 has an inner dimension (dimension on the inner surface side) slightly larger than the outer peripheral dimension of the peripheral coating strip 30" of the filter member 10 ". The outer peripheral dimension of the elastic covering member 40 ″ is set slightly smaller. The other configuration of the filter mounting frame 84 ″ is substantially the same as that of the exhaust portion 80 ′ of the second embodiment.

  According to the filter mounting frame 84 ″ of the third embodiment, the filter member 10 ″ is wound around the filter main body 20 ′ in an annular shape through the peripheral covering band 30 ″ with the mounting member 85 mounted. Since the elastic covering member 40 ″ is compressed and elastically deformed so that there is no gap between the elastic covering member 40 ″ and the inner surface of the mounting cylinder 85, the inside of the apparatus main body 91 containing ozone or toner is contained. Leakage of air to the outside is surely prevented.

  When the filter member 10 ″ is replaced with a new one, the gripping piece 60 ″ facing the operator can be easily pulled out from the mounting cylinder 85 by picking it with a finger and pulling it.

  As described above in detail, the filter members 10, 10 ′, 10 ″ according to the first to third embodiments include the filter main bodies 20, 20 ′ that remove an object to be removed in the air through the air, and the filter Winding members 70, 70 ′, 70 ″ wound around the peripheral surface of the filter main body 20, 20 ′ in a state extending in a direction orthogonal to the air permeation direction of the main bodies 20, 20 ′ are provided. ′, 70 ″ are provided with gripping pieces 60, 60 ′, 60 ″ projecting in the direction of removing the filter bodies 20, 20 ′ from the target device.

  According to this configuration, the gripping pieces 60, 60 ′ of the winding members 70, 70 ′, 70 ″ wound around the filter bodies 20, 20 ′ in a state where the filter bodies 20, 20 ′ are mounted on the image forming apparatus 90. , 60 ″ with a finger and pulled in the protruding direction of the gripping pieces 60, 60 ′, 60 ″, the filter body 20, 20 ′ can be easily detached from the image forming apparatus 90.

  Therefore, compared with the conventional case where the filter main bodies 20 and 20 'are replaced with new ones after removing the screwed outer cover, for example, the filter main bodies 20 and 20' can be easily replaced. The workability of the maintenance work of the image forming apparatus 90 involving the replacement of the old and new 20, 20 ′ can be greatly improved.

  Further, in the filter members 10, 10 ′, 10 ″ as described above, a honeycomb filter in which a large number of unit cylinders penetrating in the air permeation direction are arranged in a honeycomb shape is adopted as the filter body 20, 20 ′. Yes.

  Since the honeycomb filter can significantly reduce the pressure loss when air permeates compared to a filter paper filter, the energy (specifically, the air for allowing the air to permeate the filter main bodies 20 and 20 '). Can reduce the fan output) and contribute to a reduction in energy costs.

  In such a filter member 10, 10 ′, 10 ″, the filter main body 20, 20 ′ removes the dust filter 21 that removes the toner scattered in the image forming apparatus 90 and ozone generated in the image forming apparatus 90. A combination of ozone filters 22 is employed.

  Accordingly, the toner scattered inside the image forming apparatus 90 is collected by the dust filter 21, and the ozone generated in the image forming apparatus 90 is removed by the ozone filter 22. It is possible to effectively prevent the occurrence of inconvenience that ozone and ozone are discharged.

  In such a combination of filters, the ozone filter 22 is provided on the downstream side of the dust filter 21, so that the surface of the ozone filter 22 that contacts the air is not contaminated by adhesion of toner or other dust. Therefore, the catalyst for detoxifying ozone laminated on the surface of the ozone filter 22 that comes into contact with the air functions effectively, whereby the ozone filter 22 can always exhibit an effective ozone removing action.

  In each of the filter members 10, 10 ′, 10 ″ as described above, the winding members 70, 70 ′, 70 ″ are formed on the outer peripheral surface side by the elastic covering members 40, 40 ′, 40 ″. 20, 20 ′ can be mounted on the target site without a gap by elastic deformation of the elastic covering members 40, 40 ′, 40 ″, and the air in the apparatus main body 91 is processed in the filter main body 20, 20 ′. Therefore, it is possible to effectively prevent the occurrence of inconvenience such as being discharged outside through the gap.

  Further, in the filter members 10 and 10 'of the first and second embodiments, the elastic covering members 40 and 40' are set so that the width dimension is larger than the thickness dimension of the filter bodies 20 and 20 '. Since the protruding edge portion 42 is formed at the portion protruding from 20, 20 ′, the protruding edge portion 42 is pressed against the wall surface of the image forming apparatus 90, thereby elastically deforming the protruding edge portion 42 to close the gap. As a result, it is possible to effectively prevent the air from which the removal target is not removed from being short-circuited and leaking to the outside.

  According to the image forming apparatus 90 according to the present invention in which such filter members 10, 10 ′, 10 ″ are mounted, ozone and toner generated inside the apparatus main body 91 are filtered out by the filter members 10, 10 ′, 10. Therefore, it is possible to effectively prevent the occurrence of inconvenience such as ozone and toner leaking to the outside and contaminating the atmosphere around the image forming apparatus 90.

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

  (1) In the above embodiment, the image forming apparatus 90 has been described as an example of the target member to which the filter members 10, 10 ′, and 10 ″ are mounted. However, the target member is the image forming apparatus 90. The filter member 10, 10 ′ is not limited as long as it is a device that generates dust, ozone, or VOC (volatile organic compounds) inside the device body. , 10 ″ can be applied.

  (2) In the above-described embodiment, the adhesive layer 32 is laminated on both sides of the peripheral coating strips 30, 30 ', 30 ", but these peripheral coating strips 30, 30', 30" If a so-called double-sided tape in which an adhesive layer is previously laminated on the front and back surfaces is used, it is not necessary to apply an adhesive to the front and back surfaces of the peripheral coating strips 30, 30 ', 30 ", and the work efficiency is increased accordingly. Can be improved.

  (3) In the above-described embodiment, the honeycomb-shaped honeycomb substrate 201 is adopted as a constituent element of the filter main bodies 20 and 20 '. However, instead of this, a filter paper-like filter that allows air to permeate may be adopted. Good.

  (4) In the above embodiment, a VOC filter that removes VOC generated in the apparatus main body 91 may be employed instead of the dust filters 21 and 21 ′ or together with the dust filters 21 and 21 ′. By doing so, the VOC generated in the apparatus main body 91 is removed by the VOC filter because the VOC generated in the target apparatus is removed by the VOC filter, so that the VOC is prevented from being scattered outside.

  (5) The filter may be any one of the dust filter 21, the ozone filter 22, and the VOC filter.

  (6) FIG. 14 is an enlarged front sectional view showing another embodiment of the honeycomb structure applied to the filter body 20. In this honeycomb structure, a corrugated sheet 205 is sandwiched and bonded between long strips 204, and a honeycomb substrate 201 'is formed by laminating these strips 204 and corrugated sheets 205 in a plurality of layers. Yes. Such a honeycomb structure is easier to manufacture than the regular hexagonal honeycomb structure as described above, and can contribute to a reduction in manufacturing cost.

10, 10 ', 10 "filter member 20, 20' filter body (honeycomb filter)
201 honeycomb substrate 2011 regular hexagonal cylinder (unit cylinder)
202 Edge material 203 Laminate material layer 21, 21 ′ Dust filter 22, 22 ′ Ozone filter 30, 30 ′, 30 ″ Peripheral covering strip (wrapping member)
31 Side extension part 31 '1st protrusion part 32 Adhesive layer 40, 40', 40 "Elastic covering member (elastic member)
41 Side extension part 41 'Intermediate protrusion part 42 Projection edge part 43 Adhesive layer 50 Reinforcing member 51 Projection part 60, 60', 60 "Holding piece (handle part)
70, 70 ′, 70 ″ Winding member 80 Exhaust part 81 Dichroic fan device 811 Suction cylinder 82 Drive motor 83 Exhaust duct 831 Exhaust port 84 Filter mounting frame 841 Louver plate 841a Louver 841b Through hole 842 Bottom plate 843 Top plate 844 Right side plate 845 Insertion / removal opening 846 Frame body 847 Lid 847a Hinge 847b Support shaft 847d Louver 847e Magnet piece 85 Mounting cylinder 90 Image forming apparatus (target apparatus)
91 apparatus main body 911 lower main body 912 upper main body 913 connecting body 914 back plate 914a screw hole 915 exhaust port 92 image forming section 921 photoconductor drum 922 developing device 923 charging device 924 exposure device 925 transfer belt 925a drive roller 925b driven roller 925c transfer roller 925d Belt cleaning device 926 Drum cleaning device 927 Paper transport path 927a Transport roller pair 928 Transfer roller 929 Paper discharge transport path 92M Magenta image forming section 92Y Yellow image forming section 92C Cyan image forming section 92K Black image forming section 93 Fixing Portion 931 Fixing roller 932 Pressure roller 94 Paper storage portion 941 Paper feed tray 942 Pickup roller 95 Paper discharge portion 951 In-body paper discharge tray 952 Discharge roller pair 96 Image reading portion 961 Kutogarasu 962 document pressing mat 963 the optical system unit 964 light source 97 operation unit 971 start key 972 numeric keypad B bis P paper P1 document V mounting space

Claims (17)

A filter body that removes an object to be removed in the air by allowing air to pass through;
A winding member wound around the peripheral surface of the filter body in a state extending in a direction orthogonal to the air permeation direction of the filter body,
The said winding member is provided with the handle part protrudingly provided in the removal direction from the target apparatus of the filter main body, The filter member characterized by the above-mentioned.   The filter member according to claim 1, wherein the filter main body has a large number of unit tubes arranged in a honeycomb shape.   The filter member according to claim 1, wherein the filter body is an ozone filter that removes ozone generated in the target device.   The filter member according to claim 1, wherein the filter main body is a dust collecting filter that collects and removes dust generated in the target device.   The filter member according to claim 1, wherein the filter body is a VOC filter that removes a volatile organic compound generated in the target device.   The filter body includes an ozone filter that removes ozone generated in the target device, a dust collection filter that removes dust generated in the target device, and a VOC that removes volatile organic compounds generated in the target device. The filter member according to claim 1 or 2, wherein any two or all of the filters are combined.   The filter body includes an ozone filter that removes ozone generated in the target device, a dust collection filter that collects and removes dust generated in the target device, and a volatile organic matter generated in the target device. 3. The VOC filter for removing a compound is combined with one or both, and the ozone filter is disposed on the most downstream side in the air permeation direction. Filter member.   The filter member according to any one of claims 1 to 7, wherein an outer peripheral surface side of the winding member is formed of an elastic member.   The filter member according to claim 1, wherein the handle portion is extended outward from an outer peripheral surface of the winding member in a direction orthogonal to the air transmission direction.   The length of the winding member is set to be longer than the circumferential length of the filter body, and the winding member is wound around the filter body with one end and the other end of the winding member as extra length portions, and the one end and the other end The filter member according to claim 9, wherein the overlapping portion is the handle portion.   The filter member according to claim 1, wherein the handle portion is extended outward from a side edge portion of the winding member along the air transmission direction.   The filter member according to claim 9, wherein the elastic member has a width dimension set to be larger than a thickness dimension of the filter body.   The filter member according to claim 9, wherein the elastic member has a width dimension set smaller than a thickness dimension of the filter body. A charging device for uniformly charging the surface of the image carrier;
An exposure device that forms an electrostatic latent image by irradiating light based on image information onto the surface of the image carrier uniformly charged by the charging device;
A developing device for supplying toner to the electrostatic latent image formed by the exposure device to form a toner image is built in a predetermined device body,
An image forming apparatus comprising the filter member according to claim 1. The apparatus main body is provided with a filter mounting frame on which the filter member is detachably mounted,
15. The filter mounting frame has an insertion / removal opening through which the filter member can be inserted / removed by moving the filter member in a direction orthogonal to the air flow direction. The image forming apparatus described. The apparatus main body is provided with a filter mounting frame on which the filter member is detachably mounted,
15. The image forming apparatus according to claim 14, wherein the filter mounting frame has an insertion / removal opening through which the filter member can be inserted / removed by moving the filter member in the air flow direction. apparatus.   The image forming apparatus according to claim 14, wherein a plurality of mounting cylinders for mounting the filter member are provided on a wall surface of the apparatus main body in the filter mounting frame.