JP5662378B2 - Image processing apparatus and image processing apparatus opening / closing fulcrum fixing method - Google Patents

Description

  The present invention relates to an image processing apparatus and an image processing apparatus opening / closing fulcrum fixing method. The present invention can be suitably used for an image character processing apparatus having an opening / closing fulcrum portion, such as a copying machine and a facsimile apparatus provided with an automatic document feeder.

  2. Description of the Related Art Image processing apparatuses such as copying machines and facsimile machines that automatically supply a document to an image reading unit and read an image are widely used. In such an image processing apparatus, an automatic document feeder or ADF (Auto Document Feeder) called an ADF (Auto Document Feeder) is arranged on the upper part of the apparatus main body, and a document is set on the automatic document feeder. The originals are sent one by one to an image reading unit provided inside the apparatus main body, and are discharged to a discharge tray after the image is read.

  In such an image processing apparatus, there is a possibility that the document is jammed on the conveyance path for some reason. At this time, it is necessary to take out the jammed document from the conveyance path. In addition, the platen glass constituting the image reading surface of the image reading unit may become dirty, and in order to maintain a clear image, the cleaning may be necessary.

  For this reason, the first related technology related to the present invention has a structure in which the document conveying section can be opened and closed around an opening / closing fulcrum provided on the upper part of the image processing apparatus (for example, Patent Document 1). reference). The document conveying unit has a role of supplying the document to the image reading unit with high accuracy. In addition, since it includes a mechanism for conveying a document, it has a certain amount of weight unlike a simple document cover.

  For this reason, it is necessary to devise a method for attaching the document conveying unit so as to be openable and closable with respect to the fulcrum so as not to be displaced. Accordingly, a second related technique of the present invention has been proposed in which the original conveying unit is considered not to be displaced with respect to the apparatus main body.

  FIG. 18 shows an assembled state of the main part of the image processing apparatus according to the second related technology. The image processing apparatus 100 has a structure in which a document conveyance unit 102 that supplies a document (not shown) from a document supply tray 101 is disposed above the image reading unit 103. The image reading unit 103 is arranged at a predetermined position inside the apparatus main body 104, and scans an original sent from the original supply tray 101 in a direction (main scanning direction) perpendicular to the conveying direction 105 to read an image. Is supposed to do.

  A shaft component 106 serving as an opening / closing fulcrum of the document conveying unit 102 protrudes from the side of the apparatus main body 104 by a predetermined length in parallel with the main scanning direction of the document. A shaft part 106 is rotatably inserted into a fitting hole 108 formed in the arm part 107, and the arm part 107 is fixed to the document conveying unit 102 by fixing screws 109 and 109. As a result, the document conveying section 102 is attached to the apparatus main body 104 so as to be freely opened and closed. However, when this attachment is performed, it is necessary to accurately position the document conveying unit 102 with respect to the image reading unit 103.

  FIG. 19 shows the original conveying unit slightly lifted from the apparatus main body as a state immediately before attachment in order to explain the positioning operation of the original conveying unit according to the second related technique. An origin reference male part 121 and a sub reference male part 122 are suspended from predetermined positions on the upper surface of the apparatus main body 104 including the image reading unit 103.

  FIG. 20 is an enlarged view of the origin reference male part and its surroundings, and FIG. 21 is an enlarged view of the sub reference male part and its surroundings. The origin reference male part 121 is disposed at a position corresponding to the origin of a horizontal reference plane that becomes a reference when the document conveying unit 102 shown in FIG. 18 is attached to the apparatus main body 104. The sub-standard male part 122 is arranged on a straight line that passes through the origin on the reference plane and is drawn in the main scanning direction of the image reading unit 103 shown in FIG. Therefore, the origin reference male part 121 serves as a reference for aligning the origins of the document conveying unit 102 and the image reading unit 103, and the sub reference male part 122 is used for setting the parallelism thereof.

  The origin reference male part 121 and the sub reference male part 122 each have a round pin shape, and the top surface portion has a triangular pyramid shape. Using the origin reference male part 121 and the sub reference male part 122, positioning with the document conveying unit 102 is performed.

  FIG. 22 shows the positioning of the document transport unit and the apparatus main body. This figure shows a state in which one end portion of the document conveying portion 102 located on the opposite side of the document supply tray 101 shown in FIG. 18 is arranged so as to be in contact with the upper portion of the image reading portion 103 of the apparatus main body 104. .

  An original reference female part 131 is arranged at a position corresponding to the original reference male part 121 on the bottom of the document conveying section 102, and an auxiliary reference female part 132 is arranged at a position corresponding to the auxiliary reference male part 122. Has been placed.

  FIG. 23 is an enlarged view of the origin reference female mold portion and its surroundings, and FIG. 24 is an enlarged view of the sub-reference female mold portion and its surroundings. The origin reference female mold part 131 shown in FIG. 23 has a substantially mortar-shaped receiving shape into which the origin reference male part 121 shown in FIG. 20 just fits. The sub-standard female part 132 shown in FIG. 24 has a triangular concave shape (with respect to the main scanning direction) so that the sub-standard male part 122 shown in FIG.

  Accordingly, the assembly operator of the image processing apparatus 100 firstly fits the origin reference male part 121 accurately to the origin reference female part 131 and accurately fits the sub reference male part 122 to the sub reference female part 132. The document conveying unit 102 is positioned so as to match.

  FIG. 25 shows a state in which the home standard male part is fitted to the home standard female part, and FIG. 26 shows a state in which the sub standard male part is fitted to the sub standard female part. By fitting the origin reference female part 131 and the origin reference male part 121 together, these inclined portions are joined, thereby positioning the reference plane in the main scanning direction and the sub-scanning direction, and the reference plane. It can be seen that the vertical positioning is performed simultaneously. The same applies to the fitting of the sub-standard female part 132 and the sub-standard male part 122.

  Therefore, if the arm component 107 is fixed to the document conveying unit 102 by the fixing screws 109 and 109 in the arrangement state shown in FIG. 18 where the positioning of the document conveying unit 102 is completed using a jig (not shown), the document conveying unit The attachment of 102 is completed. After the arm component 107 is completely fixed to the document conveying unit 102 in this way, the document conveying unit 102 is rotatable about the shaft component 106, and the document conveying unit 102 is closed with the image reading unit 103. A constant positional relationship can always be maintained.

  Although the case where the shaft component 106 protrudes toward the apparatus main body 104 side as the image processing apparatus 100 and is fitted in the fitting hole 108 of the arm component 107 has been described, the shaft provided on the arm component 107 is conversely arranged. You may make it insert in the hole provided in the main body 104 side.

JP-A-11-327221 (paragraph 0029, FIG. 4)

  In the image processing apparatus 100 according to the second related technique shown in FIG. 18 and the like, the assembly accuracy of individual parts is increased and the positional deviation in units of parts is reduced. However, there is a technical or cost limit to improving the accuracy of parts. Therefore, the fixing screw 109 for fixing the arm component 107 to the document conveying unit 102 is slightly enlarged so that the component can be fixed even if some error occurs. Yes. For example, when the nominal diameter of the fixing screws 109 and 109 is 3 mm, the arm component 107 is usually provided with a through hole having a diameter of 3.5 mm, but a through hole having a diameter of about 4 mm is prepared. .

  If the through hole is set to a size with a margin, the fixing screw 109, when an external force of a size that is not normally assumed acts on the connecting portion after the document conveying portion 102 is connected to the apparatus main body 104, Even if 109 is not loose, these seating surfaces may shift. As an example, a large external force is generated when the image processing apparatus 100 is accidentally dropped during movement.

  When such a large external force is applied, the impact in the horizontal reference plane direction described above is caused by the combined structure of the origin reference male part 121 and the origin reference female part 131 and the sub reference male part 122 and the sub reference female. The combined structure of the mold part 132 can prevent displacement relatively well. However, there is no structure for suppressing the impact in the direction orthogonal to the reference plane.

  Of course, even if the positional relationship between the document conveying unit 102 and the image reading unit 103 is slightly deviated, this does not pose a danger to the user when the image processing apparatus 100 operates. However, when the position of the opening / closing fulcrum of the document conveying unit 102 is shifted, the document conveyed by the document conveying unit 102 cannot be normally read by the image reading unit 103. Accordingly, the user is responsible for handling the image or having an unavoidable situation at the time of a disaster. When necessary, the user has to repair the image processing apparatus 100 at his / her own expense.

  As a second related technique for preventing the positional relationship between the document conveying unit 102 and the image reading unit 103 as described above, the portion fixed by the fixing screws 109 and 109 is fixed to Loctite (LOCTITE (registered trademark)) or the like. There exists a technique for fixing with an adhesive. However, this second related technique is a technique for preventing the screws from loosening, and the effect of preventing the fixing screws 109, 109 from shifting within the through holes is not sufficient. In the second related technique, since the corresponding portion is fixed with an adhesive, if the portion is disassembled in the maintenance work of the image processing apparatus 100, not only the fixing effect is lost, but the fixing portion is forcibly removed. There is a problem that fixing may not be performed again.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an image processing apparatus and an image processing apparatus opening / closing fulcrum that can effectively prevent displacement of an opening / closing component or an apparatus attached to the apparatus main body so as to be openable / closable around a predetermined fulcrum. It is to provide a part fixing method.

  In the present invention, (a) an apparatus main body provided with an original reading section for reading an original, and a shaft part projecting from the side of the casing near the original reading section as a predetermined opening / closing fulcrum, and (b) the apparatus main body (C) A bearing hole that serves as a bearing for the shaft component described above and (b) a bearing hole that serves as a bearing for the above-described shaft component, and the above-described bearing hole at a portion that serves as an arm portion. An arm in which a concave portion having a predetermined shape whose thickness is thinner than the surrounding surface is formed on a surface parallel to the surface on which the concave portion is formed, and a surface opposite to the opening side of the concave portion is disposed to face the casing side portion described above. And (d) a surface that forms the bottom of the recess of the arm component and one surface are in contact with each other, and has a shape that is slidable only in a specific direction on a surface parallel to the contacted surface. And for this particular direction A fixing sheet metal part made of a sheet metal having two sides which are inclined at a predetermined angle and differing from each other as a part of the contour shape, and which is thinner than the depth of the recess, and (e) the fixing sheet metal part A holding part provided with an engaging part that engages with the two sides and is movable along these sides in a state of being arranged so as to be superimposed on the other surface, and In the state where the above-mentioned hold part is arranged to be engaged with the above-described fixing sheet metal part, the fixing screw for arm part that is fastened to the above-mentioned arm part from the above-mentioned hold part side, In the state in which the above-mentioned hold part is arranged to be engaged with the above-described fixing sheet metal part, it is fixed from the above-described fixing sheet metal part side to the corresponding portion of the above-described document conveying portion via the above-described arm part. Image processing apparatus and a fixing screw document feeder.

In the present invention, (a) an original reading unit for reading an original is provided, and the original reading unit of the apparatus main body is protruded as a predetermined opening / closing fulcrum from a side part of the casing near the original reading unit. A document conveying section as an object to which a positioning pin that is in the vicinity and is suspended at a predetermined position on the upper surface of the apparatus main body is attached to be freely opened and closed with the opening / closing fulcrum of the apparatus main body as a center of rotation. A positioning step for positioning the above-mentioned document conveying section on the above-described apparatus main body by fitting into a boss drilled at a predetermined position on the bottom of the above-mentioned apparatus, and (b) the above-described positioning on the above-mentioned apparatus main body in this positioning step A bearing hole that serves as a bearing for the above-described shaft component is disposed in the document conveying portion, and the thickness of the portion that becomes the arm portion is around a plane parallel to the surface on which the bearing hole is formed. An arm component placement step in which the surface opposite to the opening side of the recess of the arm component formed with the thinned recess having a predetermined shape is opposed to the housing side portion; The surface of the above-described arm part to be arranged has a shape that makes one surface contact with the surface that forms the bottom of the above-described concave portion and that can slide only in a specific direction on a surface parallel to the contacted surface. On the other surface of the fixing sheet metal part made of a sheet metal having two sides that are different from each other in the arrangement position and inclined as a predetermined angle with respect to a specific direction as a part of the contour shape and thinner than the depth of the concave portion described above The engaging part of the hold part provided with an engaging part that engages with the two sides and is movable along the two sides in a state of being arranged so as to be overlapped with each other. A holding part engaging step that engages with one side; and (d) a surface forming the bottom of the recess and the one surface of the fixing sheet metal part engaged with the holding part in the holding part engaging step. And (e) the holding part is engaged with the fixing sheet metal part in the holding part engaging step, and the fixing part is arranged in the fixing sheet metal part arranging step. In a state where the sheet metal part is in contact with the surface forming the bottom of the recess of the arm part and one surface, the document conveying part is moved from the fixing sheet metal part side to the corresponding part of the document conveying part via the arm part. The image processing apparatus opening / closing fulcrum portion fixing method includes a document conveying portion fixing screw screwing step for screwing a fixing screw .

  As described above, according to the present invention, there is a problem of a gap between the fixing sheet metal part and the arm part by using the holding part in combination as a part for closing the gap generated between the fixing sheet metal part and the arm part. Therefore, the displacement between the fixing screw and the through hole when an excessive force is applied to the image processing apparatus is prevented. In particular, the holding parts are made of resin, facilitating the processing of the fixing sheet metal parts, and the opening and closing fulcrum by the resin material deformed by screwing slightly intruding into the through holes of the fixing sheet metal parts The fixing force of the part can be enhanced.

  Further, according to the present invention, the open / close fulcrum portion including the arm part, the fixing sheet metal part, the holding part, and the fixing screw is a conventional irreversible method that strengthens the fixing by changing the material by adhesive or heating. Unlike the technique, the fixing force of the opening / closing fulcrum is enhanced by using deformation caused by the pressure of the resin. For this reason, even if the opening / closing fulcrum part is disassembled, there is an effect that the fixing force of the opening / closing fulcrum part can be realized any number of times by reassembling.

It is a claim correspondence diagram of the image processing apparatus of the present invention. It is a claim corresponding | compatible figure of the image processing apparatus opening / closing fulcrum part fixing method of this invention. 1 is a perspective view illustrating an appearance of an image processing apparatus according to an embodiment of the present invention. The mutual positional relationship of the positioning criteria when the document conveying section is opened is shown. FIG. 3 is a perspective view of a main part of the image processing apparatus according to the present embodiment with a document conveying unit attached. It is a principal part perspective view of the image processing apparatus for demonstrating the mode of the assembly of the opening-and-closing fulcrum part of this Embodiment. It is a top view of the screw receiving sheet metal component in this Embodiment. It is a top view of the arm component which comprises the opening-and-closing fulcrum part in this Embodiment. It is a top view of the sheet metal part for fixation which comprises the opening-and-closing fulcrum part in this Embodiment. It is a top view of the holding | maintenance part which comprises the opening / closing fulcrum part in this Embodiment. It is the perspective view which showed the arrangement | positioning state at the time of the assembly of all the parts which comprise the opening / closing fulcrum part in this Embodiment. It is a top view showing the state which the assembly of the opening-and-closing fulcrum part of this Embodiment was complete | finished, and the opening-and-closing fulcrum part was fixed to the screw receiving sheet metal part. It is explanatory drawing showing the mode of the position adjustment of the relative up-down direction between both components in the arm component which comprises the opening-and-closing fulcrum part of this Embodiment, and a sheet metal part for fixation. It is explanatory drawing showing the mode of the relative position adjustment of the relative diagonal direction between both components in the sheet metal part for fixation and the hold part which comprise the opening-and-closing fulcrum part of this Embodiment. It is the top view which showed the mode of the movement of a holding | maintenance part at the time of lowering | releasing the sheet metal part for fixation of this Embodiment relatively. It is the top view which showed the mode of the movement of a holding | maintenance component at the time of raising the sheet-metal component for fixation of this Embodiment relatively. It is principal part sectional drawing showing the state which screwed the hold component of this Embodiment with the screw for fixation. 6 is a flowchart showing an outline of an operation of attaching the original body to the apparatus main body of the present embodiment. It is a perspective view showing the assembly state about the principal part of the image processing apparatus in the 2nd related technique of this invention. It is a principal part perspective view of an image processing device for showing positioning operation of a manuscript conveyance part by the 2nd related art. It is the principal part perspective view which expanded and showed the origin reference | standard male component in the 2nd related technology, and its periphery. It is a principal part perspective view which expanded and showed the substandard male part and its circumference which expanded and showed the substandard male part and the circumference. It is a principal part perspective view of the image processing apparatus for demonstrating the positioning of the original conveyance part and apparatus main body in 2nd related technology. It is the principal part perspective view which expanded and showed the origin reference | standard female type | mold part in the 2nd related technology, and its periphery. It is the principal part perspective view which expanded and showed the sub standard female type | mold part in the 2nd related technique, and its periphery. It is principal part sectional drawing which showed the state by which the origin reference | standard male part was fitted to the origin reference | standard female type | mold part in 2nd related technology. It is principal part sectional drawing which showed the state in which the sub reference | standard male part was fitted to the sub reference | standard female type | mold part in 2nd related technology.

  FIG. 1 is a diagram corresponding to claims of the image processing apparatus of the present invention. An image processing apparatus 10 according to the present invention includes an apparatus main body 11, a document conveying unit 12, an arm component 13, a fixing sheet metal component 14, a holding component 15, an arm component fixing screw 16, and a document conveying unit. A fixing screw 17 is provided. Here, the apparatus main body 11 includes a document reading unit that reads a document, and protrudes a shaft component from the side of the casing near the document reading unit as a predetermined opening / closing fulcrum. The document conveying unit 12 is an object to be attached to be freely opened and closed with the opening / closing fulcrum of the apparatus main body 11 as a rotation center. The arm component 13 is provided with a bearing hole serving as a bearing for the shaft component described above, and a predetermined thickness whose surface is parallel to the surface where the bearing hole is formed in a portion serving as the arm portion and which is thinner than the surroundings. A concave portion having a shape is formed, and the surface opposite to the opening side of the concave portion is arranged to face the above-described casing side portion. The fixing sheet metal part 14 has a shape in which the surface forming the bottom of the recess of the arm part 13 is brought into contact with one surface, and is slidable only in a specific direction on a surface parallel to the contacted surface. In addition, the sheet is made of a sheet metal having, as part of the contour shape, two sides different from each other in the arrangement position, which are inclined by a predetermined angle with respect to the specific direction, and are thinner than the depth of the recess. The holding component 15 includes an engaging portion that engages with the two sides described above and is movable along these sides while being arranged so as to overlap the other surface of the fixing sheet metal component 14. . The arm component fixing screw 16 is fastened together with the arm component 13 from the hold component 15 side in a state where the hold component 15 is placed in the above-described recess so as to be engaged with the fixing sheet metal component 14. The document conveying unit fixing screw 17 is arranged in such a manner that the holding component 15 is engaged with the fixing sheet metal component 14 in the above-described recess, and the document conveying unit 12 from the fixing sheet metal component 14 side through the arm component 13. Fix to the corresponding part of.

  FIG. 2 is a view corresponding to claims of the image processing apparatus opening / closing fulcrum fixing method of the present invention. The image processing apparatus opening / closing fulcrum portion fixing method 20 according to the present invention includes a positioning step 21, an arm component placement step 22, a fixing sheet metal component placement step 23, a hold component engagement step 24, and a document conveying portion fixing screw. A screwing step 25 is provided. Here, in the positioning step 21, an original reading unit for reading an original is provided, and the original reading unit of the apparatus main body in which the shaft component is projected as a predetermined opening / closing fulcrum from the side of the casing near the original reading unit. A document conveying section as an object to which a positioning pin that is in the vicinity and is suspended at a predetermined position on the upper surface of the apparatus main body is attached to be freely opened and closed with the opening / closing fulcrum of the apparatus main body as a center of rotation. The above-mentioned document conveying section is positioned on the above-described apparatus main body by fitting into a boss drilled at a predetermined position on the bottom of the apparatus. In the arm component placement step 22, a bearing hole serving as a bearing for the shaft component is disposed on the document conveying portion positioned on the apparatus main body as described above in the positioning step 21, and at the portion serving as the arm portion, The surface opposite to the opening side of the concave portion of the arm part in which the concave portion having a predetermined shape whose thickness is thinner than the surrounding surface is parallel to the surface on which the bearing hole is formed is opposed to the above-mentioned housing side portion. Arrange. In the fixing sheet metal part arranging step 23, the surface forming the bottom part of the above-mentioned recess of the arm part arranged in the arm part arranging step 22 is brought into contact with one surface, and in a surface parallel to the contacted surface. It has a shape that can be slidably contacted only in a specific direction, and has two sides that are inclined with respect to the specific direction at a predetermined angle and are different from each other as a part of the contour shape. The fixing sheet metal part made of a sheet metal thinner than the above is arranged so that the surface forming the bottom of the recess and the one surface described above are in contact with each other. In the hold part engaging step 24, the two parts described above are engaged with each other in the state of being arranged so as to overlap the other surface of the fixing sheet metal part arranged in the fixing sheet metal part arranging step 23. The above-mentioned engaging part of the holding part provided with the engaging part that is movable along is engaged with the above-mentioned two sides of the above-described fixing sheet metal part. In the fixing screw screwing step 25 for the document conveying portion, the hold component described in the hold component engaging step 24 is engaged with the fixing sheet metal component, and the fixing sheet metal component described above is the above-described arm component. In a state where the surface forming the bottom portion of the concave portion and one surface are in contact with each other, a fixing screw for the document conveying portion is provided from the fixing sheet metal component side to the corresponding portion of the document conveying portion via the arm component described above. Screw in.

  <Embodiment of the Invention>

  Next, an embodiment of the present invention will be described.

  FIG. 3 shows the appearance of the image processing apparatus using the document conveying unit according to the embodiment of the present invention. FIG. 3 shows a state in which the document conveying unit is opened for maintenance. Actually, the document conveying section is held open by a damper mechanism (not shown). In FIG. 3, the same parts as those in FIGS. 18 and 19 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  The image processing apparatus 200 according to the present embodiment has a structure in which a document conveyance unit 102 that automatically conveys a document is attached to an upper part of an apparatus main body 104 having a printer mechanism. This figure shows a case where the document conveying unit 102 is opened with respect to the apparatus main body 104 and is in an inclined state. The opening / closing fulcrum is attached by using an opening / closing fulcrum portion not shown in the figure. This will be described later.

  At a predetermined position on the upper part of the apparatus main body 104, an origin reference male part 121 serving as an origin for performing a positioning operation when attaching the document conveying section 102 is suspended. Further, a sub-standard male part 122 is suspended from another predetermined point along the main scanning direction of the document passing through the origin defined by the origin-standard male part 121. An origin reference female mold 131 corresponding to the origin reference male part 121 and a sub reference female mold part 132 corresponding to the sub reference male part 122 are arranged on the bottom surface portion of the document conveying unit 102.

  In this image processing apparatus 200, after the fixing operation of the document conveying unit 102 on the apparatus main body 104 is completed and the entire assembly is completed, when an original is set on the document conveying unit 102 and the operation panel 211 is operated, the image reading is performed. Starts. When the image processing apparatus 200 is set to the facsimile transmission mode, the read image is transmitted to the transmission destination. The apparatus main body 104 is provided with a printing mechanism, and when printing a read image or a received image, the image is recorded on a sheet (not shown) sent from the paper feed tray 212 and discharged to the discharge tray 213. Will be.

  FIG. 4 illustrates a main part to which the document conveying unit of the image processing apparatus according to the present embodiment is attached. 4 that are the same as those in FIG. 18 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  A shaft component 106 protrudes from the side of the apparatus main body 104 of the image processing apparatus 200 in the same manner as the image processing apparatus 100 shown in FIG. An opening / closing fulcrum part 221 is attached to the shaft part 106. The opening / closing fulcrum portion 221 is fixed to a corresponding portion on the side portion of the document conveying portion 102 by three fixing screws 222 constituting a part thereof. Similar fixing is also performed at the opening / closing fulcrum portion 223 on the other side of the document conveying portion 102. By fixing the open / close fulcrum portions 221 and 223 as described above, the document conveying portion 102 is fixed at a desired position of the apparatus main body 104.

  FIG. 5 is a diagram for explaining how the opening / closing fulcrum part is assembled. The opening / closing fulcrum part 221 is attached to the arm part 231 fitted to the shaft part 106 on the apparatus main body 104 side, the fixing sheet metal part 233 to be inserted into the recess 232 of the arm part 231, and the fixing sheet metal part 233. The holding component 234 and the three fixing screws 222 are configured. The arm component 231 and the hold component 234 are made of resin, and the fixing sheet metal component 233 is obtained by processing one sheet metal.

  A screw receiving sheet metal component 236 is attached to a portion of the document conveying unit 102 disposed immediately above the shaft component 106 of the apparatus main body 104. The screw receiving sheet metal component 236 is screwed with two of the three fixing screws 222. Further, the remaining one fixing screw 222 is screwed to the arm component 231 itself.

  6 to 9 show the planar shapes of the respective parts related to the opening / closing fulcrum part. Among these, FIG. 6 shows the screw receiving sheet metal part 236. The screw receiving sheet metal part 236 is made of a sheet metal whose section is bent in a U shape, and screw fixing holes 241 and 242 for screwing two of the three fixing screws 222 shown in FIG. Has been. However, the screw fixing holes 241 and 242 are not necessarily screwed. If the fixing screw 222 is a self-tapping screw, the screw fixing holes 241 and 242 may be simple holes.

  A tongue-shaped portion 243 is disposed at an intermediate position between the two screw fixing holes 241 and 242 in the screw receiving sheet metal part 236. As shown in FIG. 5, when the tongue-shaped portion 243 of the screw receiving sheet metal part 236 is tilted so as to be horizontal, the arm part 231 shown in FIG. 7 and the fixing part shown in FIG. Positioning of the sheet metal part 233 and the hold part 234 shown in FIG. 9 can be easily performed.

  The arm part 231 shown in FIG. 7 is a resin part that becomes an arm part, and is directly connected to the screw receiving sheet metal part 236 arranged on the document conveying part 102 side shown in FIG. The shaft component 106 shown in FIG. 5 is inserted into the circular hole 251. In the recess 232 in which the thickness of the arm part 231 is further reduced, there are slightly large screw holes 253 and 254 through which the two fixing screws 222 shown in FIG. A through hole 255 is opened. A screw fixing hole 256 for fixing the remaining one fixing screw 222 to the arm component 231 itself is threaded below the through holes 253 to 255 in the recess 232. If the fixing screw 222 is a self-tapping screw, the screw fixing hole 256 may be a simple hole.

  The fixing sheet metal part 233 shown in FIG. 8 is an N-shaped sheet metal having two inclined side portions 261 and 262 parallel to each other. The fixing sheet metal part 233 has horizontally long slots 263 and 264 respectively corresponding to the screw through holes 253 and 254 in the arm part 231 shown in FIG. 7 and a vertically long slot 265 corresponding to the screw fixing hole 256. Each is open. Further, in order to pass the tip of the tongue-shaped portion 243 of the screw receiving sheet metal component 236 shown in FIG. 6, the slit-shaped bellows is provided at a position corresponding to the tongue-shaped portion through hole 255 in the arm component 231 shown in FIG. A shape portion through hole 266 is formed.

  In the case of the arm part 231 shown in FIG. 7, the shaft part 106 shown in FIG. 5 is fitted into the circular hole 251 so that the arm part 231 can be positioned with respect to the apparatus main body 104. In the case of the fixing sheet metal part 233 shown in FIG. 8, positioning with respect to the apparatus main body 104 is possible by passing the tip of the tongue-shaped portion 243 through the slit-shaped tongue-shaped portion through hole 266.

  The hold component 234 shown in FIG. 9 is a component that functions so that the fixing sheet metal component 233 does not move relative to the arm component 231. In addition, the hold component 234 can be manufactured in a slightly complicated shape by using a resin, thereby simplifying the shape of the fixing sheet metal component 233 shown in FIG. 8 combined therewith.

  In the hold component 234, a horizontally long slot 271 corresponding to the screw fixing hole 256 shown in FIG. 7 is formed. Further, corresponding to the two inclined side portions 261 and 262 of the fixing sheet metal part 233 shown in FIG. 8, there are provided inner groove portions 272 and 273 inclined in the same direction as these. In these inner groove portions 272 and 273, two inclined side portions 261 and 262 of the fixing sheet metal part 233 shown in FIG. 8 can be slidably contacted like the upper and lower end portions of the sliding door.

  FIG. 10 shows an arrangement state at the time of assembling the opening / closing fulcrum portion obtained by adding three fixing screws to the components described in FIGS. 7 to 9 from a direction different from FIG. As can be seen from this drawing showing the opening / closing fulcrum part 221, the fixing sheet metal part 233 has the inclined side parts 261 and 262 fitted into the inner groove parts 272 and 273 of the holding part 234, and the inclined side parts 261 and 262 are formed. It is assembled so as to be slidable in the hypotenuse direction 281 that constitutes.

  FIG. 11 shows a state in which the assembly of the opening / closing fulcrum portion is completed and the opening / closing fulcrum portion is fixed to the screw receiving sheet metal part. At this time, in a state where the fixing sheet metal part 233 is held by the hold part 234, the fixing sheet metal part 233 is screwed to the screw receiving sheet metal part 236 by the two fixing screws 222 in the recess 232 of the arm part 231. Yes. Referring to FIG. 10, the remaining one fixing screw 222 disposed on the lowermost side of the arm component 231 is connected to the arm component 231 via the elongated hole 271 of the holding component 234 and the elongated hole 265 of the fixing sheet metal component 233. The screw fixing hole 256 is screwed.

  FIG. 12 shows a state of relative vertical position adjustment between the two parts of the arm part and the fixing sheet metal part constituting the opening / closing fulcrum part. In the present embodiment, when the document conveying unit 102 of the image processing apparatus 200 shown in FIG. 3 is attached to the apparatus main body 104, positioning can be performed with sufficient accuracy without requiring high accuracy for related parts, and The goal is to minimize misalignment between parts even when a large impact is applied.

  In order to enable fine adjustment of the positioning, the fixing sheet metal part 233 is shorter in this direction than the length of the concave part 232 of the arm part 231 in the vertical direction 291. As a result, the position of the fixing sheet metal part 233 can be adjusted in the vertical direction within the recess 232 of the arm part 231. For example, even if the fixing sheet metal part 233 is moved up and down within this moving range, the screw fixing hole 256 can always be seen within the moving range of the long hole 265. The relationship between the oblong long holes 263 and 264 with respect to the screw through holes 253 and 254 and the relationship between the tongue shaped portion through holes 266 with respect to the tongue shaped portion through holes 255 are the same.

  The fixing sheet metal part 233 is movable in the vertical direction in the recess 232 as described above. However, the horizontal length of the fixing sheet metal part 233 is shorter than the length of the recess 232 of the arm part 231 by the minimum gap of the sheet metal width. For this reason, the fixing sheet metal part 233 does not move in the horizontal direction with respect to the arm part 231.

  FIG. 13 illustrates a state of relative position adjustment in the oblique direction between the two parts in the fixing sheet metal part and the holding part constituting the opening / closing fulcrum part. As already described, the two inclined side portions 261 and 262 of the fixing sheet metal part 233 are in sliding contact with the inner groove parts 272 and 273 (see FIG. 9) of the hold part 234. As a result, the holding component 234 can be moved relative to the fixing sheet metal component 233 in an inclination direction 301 parallel to the inclination constituting the inclined side portions 261 and 262.

  FIG. 14 shows the movement of the hold part when the fixing sheet metal part is relatively lowered. FIG. 15 shows the movement of the hold part when the fixing sheet metal part is relatively raised. As shown in FIG. 14, when the fixing sheet metal part 233 is lowered, the hold part 234 moves to the left. On the other hand, as shown in FIG. 15, when the fixing sheet metal part 233 is raised, the hold part 234 moves to the right.

  When the opening / closing fulcrum portion 221 is positioned by relative movement in the up-down direction 291 shown in FIG. 12 and the inclination direction 301 shown in FIG. 13, a fixing screw 222 (self-tapping screw) inserted into the elongated hole 271 of the hold component 234 is used. Fix it. Similarly, fixing using fixing screws 222 inserted into the long holes 263 and 264 of the fixing sheet metal part 233 is also performed. At this time, even if the positions of the opening / closing fulcrum part 221 and the screw receiving sheet metal part 236 of the document conveying part 102 are slightly deviated vertically and horizontally, these deviations are adjusted and the three fixing screws 222 are fixed with screws. It is possible.

  It is assumed that the screw fixing holes 241 and 242 of the screw receiving sheet metal part 236 shown in FIG. 6 are tapped, but can be fixed using a self-tapping screw for sheet metal without a tap. In this way, the arm part 231 is sandwiched between the screw receiving sheet metal part 236 and the fixing sheet metal part 233 provided in the document conveying unit 102 shown in FIG. 5, and the document is conveyed via the fixing sheet metal part 233 side. The screw receiving sheet metal part 236 of the portion 102 is fastened together. Further, the holding component 234 is also fastened to the fixing sheet metal component 233 and the arm component 231 at a screwed (self-tapping) location.

  When performing the above operation, the tongue-shaped portion 243 of the screw receiving sheet metal part 236 shown in FIG. 6 holds the fixing sheet metal part 233 when the opening / closing fulcrum part 221 is assembled. Therefore, the screwing operation using the fixing screw 222 can be easily performed. Further, as shown in FIG. 10, the portion of the hold component 234 that is fastened together with the fixing screw 222 is thinner than other portions. For this reason, a part of the thickness of the hold component 234 is crushed in the range where it is pressed by the fixing screw 222, and the resin portion constituting this is inside the elongated hole 265 (see FIG. 8) of the screw receiving sheet metal component 236. Get into

  FIG. 16 shows a state in which the hold component is screwed with a fixing screw. It is assumed that the fixing screw 222 is screwed to the arm component 231 with the fixing sheet metal component 233 sandwiched from the hold component 234 side. Then, the resin portion constituting the hold component 234 is slightly indented between the gaps of the long holes 265 (see FIG. 8) of the fixing sheet metal component 233. By the reaction of the resin indented portion 311 due to indentation, an effect of preventing loosening of the fixing screw 222 and prevention of deviation of the hold part 2346 from the fixing sheet metal part 233 occurs.

  FIG. 17 shows an outline of an operation of attaching the document supporting unit to the apparatus main body using the opening / closing fulcrum unit described above. The description will be made with reference to FIGS. 3 to 10, 19, and 22.

  First, as shown in FIG. 19, the document conveying section 102 is moved up on the apparatus main body 104, and the origin reference male part 121 is moved to the origin reference female part 131 and the sub reference male part 122 is moved to the subsidiary body. The reference female mold part 132 is fitted from the respective tip parts (refer to FIGS. 3 and 22 for the position of the reference). As a result, the horizontal positional relationship of the document conveyance unit 102 with respect to the apparatus main body 104 is determined (step S401).

  Next, the assembling worker attaches the screw receiving sheet metal part 236 to a predetermined position on the side of the document conveying unit 102 (step S402). The screw receiving sheet metal component 236 may be attached in advance to the side portion of the document conveying unit 102.

  Note that the opening / closing fulcrum portion 221 has a shape shown in FIG. 6 and a symmetrical shape, and are attached to both sides of the document conveying portion 102 one by one. The same applies to the arm part 231, the fixing sheet metal part 233, and the hold part 234 that constitute the opening / closing fulcrum part 221. However, in the following description, only the flow of work for attaching the opening / closing fulcrum part 221 to one side part of the document conveying part 102 will be described.

  When the operations of step S401 and step S402 are completed, the assembling worker inserts the shaft part 106 into the circular hole 251 of the arm part 231, and the tip of the tongue-shaped portion 243 of the screw receiving sheet metal part 236 is placed on the arm part 231. It passes through the tongue-shaped portion through hole 255 (step S403). Thereby, the arrangement relationship between the screw receiving sheet metal part 236 and the arm part 231 is roughly determined.

  Thereafter, the assembling operator incorporates these into the recess 232 of the arm part 231 in a state where the holding part 234 is engaged with the fixing sheet metal part 233. At this time, first, the tip of the tongue-shaped portion 243 of the screw receiving sheet metal component 236 is passed through the tongue-shaped portion through hole 255 of the arm component 231 and then passed through the slit-shaped tongue-shaped portion through hole 266 of the fixing sheet metal component 233 ( Step S404). In this way, the arrangement relationship of the arm component 231 with respect to the screw receiving sheet metal component 236 and the arrangement relationship of the fixing sheet metal component 233 in the arm component 231 are determined. When assembling the fixing sheet metal part 233 and the holding part 234 into the concave part 232 of the arm part 231, the assembly operator adjusts the positional relationship between these parts along the two inclined side parts 261 and 262.

  When the process of step S404 is completed, the assembling operator can attach the screw fixing hole 256 of the arm part 231 to the end of the fixing screw 222 inserted from the long hole 271 of the hold part 234 via the long hole 265 of the fixing sheet metal part 233. One fixing screw 222 is temporarily tightened into the screw fixing hole 256 in a positional relationship to reach the position. Then, the two long holes 263 and 264 of the fixing sheet metal part 233 are respectively set in a positional relationship of reaching the screw fixing holes 241 and 242 of the screw receiving sheet metal part 236 through the screw through holes 253 and 254 of the arm part 231. Each fixing screw 222 is temporarily tightened into the screw fixing holes 241 and 242. Thereafter, these three fixing screws 222 are tightened to the screw fixing holes 256 of the arm part 231 and the screw fixing holes 241 and 242 of the screw receiving sheet metal part 236, respectively, with a specified tightening torque (step S405). As a result, the positional relationship in the vertical direction of the document conveying section 102 with respect to the apparatus main body 104 is also fixed, and the attachment of the document conveying section 102 to the apparatus main body 104 is completed (end).

  According to the image processing apparatus 200 of the present embodiment described above, when an external impact is applied to the image reading unit 103 with the three fixing screws 222 screwed as shown in FIG. It becomes like this.

  First, when a force is applied to the image reading unit 103 from the lateral direction (horizontal direction) of the image processing apparatus 200, the origin reference male part 121 shown in FIG. 25, the origin reference female part 131 into which this is inserted, and FIG. The sub-standard male part 122 shown in FIG. 6 and the origin-standard male part 121 fitted with the same receive this force. This is the same for the conventional image processing apparatus 100 and the image processing apparatus 200 of the present embodiment.

  Next, a case where force is applied to the image reading unit 103 from the vertical direction (vertical direction) of the image processing apparatus 200 will be described. In this case, the fixing screw 222 shown in FIG. 10 connected to the screw receiving sheet metal part 236 shown in FIG. 6 passes through the long holes 263 and 264 of the fixing sheet metal part 233 shown in FIG. H.263 and H.264 have minimal backlash in the vertical direction. Therefore, the fixing screw 222, the fixing sheet metal part 233, and the screw receiving sheet metal part 236 are in an integrated state.

  In this state, there is a backlash between the fixing screw 222 and the screw through holes 253 and 254 of the arm component 231. In order to move the arm component 231 so as to fill the vertical play, it is necessary to move (slidably contact) the fixing sheet metal component 233 in the vertical direction in a state where it is disposed in the recess 232 shown in FIG. Even if the fixing sheet metal part 233 tries to move in the vertical direction, the hold part 234 shown in FIG. 9 enters the upper and lower gaps obliquely. As a result, the fixing sheet metal part 233 cannot move in the vertical direction.

  Of course, even in this state, the hold component 234 can be moved in the horizontal direction. However, if the thin part of the hold part 234 is crushed and the resin part is indented into the elongated hole 265 (see FIG. 8) of the screw receiving sheet metal part 236, the hold part 234 is the fixing sheet metal part. 233 is also integrated. The hold component 234 is also integrated with the arm component 231 in the vertical direction. Therefore, in the vertical direction, all of the document conveyance unit 102, the opening / closing fulcrum unit 221 and the image reading unit 103 of the image processing apparatus 200 are integrated. As a result, even when a force is applied to the image reading unit 103 from the vertical direction of the image processing apparatus 200, the fixing of the image reading unit 103 with respect to the document conveying unit 102 is difficult to be displaced.

  As described above, according to the image processing apparatus 200 of the present embodiment, the opening / closing fulcrum part 221 is configured by being divided into a plurality of parts. Accordingly, with regard to the connection between the document conveying unit 102 and the image reading unit 103, it is possible to provide a margin for the design quality and manufacturing quality of each component. As a result, the cost reduction and the ease of assembly of the image processing apparatus 200 can be realized.

  Further, the opening / closing fulcrum part 221 is constituted by an arm part 231, a fixing sheet metal part 233, a holding part 234 and three fixing screws 222. It is possible to configure this with only arm parts, fixing sheet metal parts and fixing screws. However, in this case, if an excessive force is applied in the vertical direction of the image processing apparatus, even if the fixing screw is loosened due to the play that inevitably exists between the through hole of the arm part and the screw of the fixing sheet metal. Even without this, the vertical displacement between the fixing sheet metal and the arm component cannot be prevented.

  In the present embodiment, by using the hold component 234 that holds the fixing sheet metal component 233, the hold component 234 stretches in the arm component 231 at least a part of the force by which the fixing sheet metal component 233 moves in the vertical direction. It will be received in the form. A horizontal force is also applied to the holding component 234. This is because the contact surface between the fixing sheet metal part 233 and the hold part 234 forms an inclined surface. In this embodiment, the angle of the slope is set to 30 degrees as an example. In the case of this example, the force applied to the fixing sheet metal part 233 is distributed in a ratio of 2: 1 in the vertical direction and the horizontal direction perpendicular thereto. For this reason, the proof stress of an up-down direction becomes strong.

  Furthermore, according to the image processing apparatus 200 of the present embodiment, the periphery of the long hole 271 in the hold component 234 is configured by a thin resin. If the seating surface of the fixing screw 222 of the holding component 234 and the surface of the screwing portion slip, the fixed state of the document conveying unit 102 and the image reading unit 103 cannot be maintained. In the present embodiment, the effect of crushing the resin is added to the thinning of the screw fixing portion of the hold component 234. Thus, in order for the seating surface of the fixing screw 222 of the holding component 234 to slide, it is necessary to apply a force until the portion of the fixing sheet metal component 233 that has been recessed into the elongated hole 265 (see FIG. 8) is sheared. become. The force required for shearing is generally greater than the force required for sliding. As a result, according to the present embodiment, an increase in the yield strength in the vertical direction can be expected.

  Furthermore, according to the image processing apparatus 200 of the present embodiment, even if the opening / closing fulcrum portion 221 is disassembled as necessary for maintenance or the like and then reassembled, the gap between the document conveying portion 102 and the image reading portion 103 is fixed. However, there is an effect that the function of maintaining the state is maintained.

  Next, a specific description will be given as an example of the image processing apparatus 200 described above. The holding component 234 (FIG. 9) that constitutes the opening / closing fulcrum part 221 (FIG. 5) of the image processing apparatus 200 is made of a PC / ABAS resin. In the embodiment, the size of the hold component 234 is 40 millimeters long and 22 millimeters wide, and the thickness of the lower part is 4.5 millimeters. Further, the thickness of the plane around the horizontally long slot 271 is 1 mm.

  The arm component 231 shown in FIG. 7 is made of PC-ABS resin, the size is 68 millimeters long and 52 millimeters wide, and the maximum thickness is 19 millimeters. Circular hole 251 is 15 millimeters in diameter.

  In this embodiment, the screw receiving sheet metal part 236 is manufactured by bending a galvanized steel sheet. As shown in FIG. 5, the tongue-shaped portion 243 is formed by cutting a corresponding portion of the screw receiving sheet metal part 236 into a U-shape that is upside down and folding back 90 degrees so that this portion is horizontal. doing. Of course, the tongue-shaped portion 243 can be variously modified. For example, two small pins may be provided as studs on the surface of the screw receiving sheet metal part 236 facing the arm part 231.

  <Deformability of invention>

  In the embodiment described above, the thickness of a part of the hold component 234 is reduced so that the resin is embedded in the elongated hole, but the present invention is not limited to this. For example, you may use the burr | flash shape produced when the sheet metal part 233 for fixation is punched out. That is, the outer portion is punched in the direction of biting into the arm component 231, and the long hole 265 (see FIG. 10) is pulled out in the direction of the contact surface with the hold component 234. Thereby, when the fixing screw 222 is screwed into the screw fixing hole 256 of the arm part 231, the edge portion of the resin and the fixing sheet metal part 233 bites in, and the holding effect of the holding part 234 can be enhanced.

  In the embodiment, the image processing apparatus 200 that performs facsimile communication has been described as an example. However, the present invention is not limited to this. Opening / closing fulcrum part fixing structure and opening / closing fulcrum part of any apparatus that has an opening / closing fulcrum part such as a copying machine or a scanner, and that is required to prevent displacement of a component or an apparatus that can be opened and closed with respect to the apparatus main body. Of course, the present invention can be applied to the fixing method.

  Furthermore, in the embodiment, the contact surface (inclination angle of the inclined side portions 261 and 262 in FIG. 8) between the fixing sheet metal part 233 and the hold part 234 is 30 degrees, and the force applied to the sheet metal is up and down 2, left and right It is distributed at a ratio of 1. When this inclination angle is in the range of 15 degrees or more and 35 degrees or less, the force applied in the vertical direction can be effectively dispersed. Of course, the inclination angle is not limited to these ranges.

  Some or all of the embodiments described above are described as in the following supplementary notes, but are not limited to the following descriptions.

(Appendix 1)
An apparatus main body provided with a document reading unit for reading a document, and projecting a shaft component as a predetermined opening / closing fulcrum from a side part of the casing near the document reading unit;
A document conveying section as an object to be freely opened and closed with the opening / closing fulcrum of the apparatus body as a rotation center;
A bearing hole serving as a bearing for the shaft component is disposed, and a concave portion having a predetermined shape whose thickness is thinner than the surrounding surface is formed on a surface parallel to the surface where the bearing hole is formed in a portion serving as an arm portion, An arm component arranged to face the side of the housing opposite to the opening side of the recess;
The arm component has a shape that allows one surface to be in contact with the surface that forms the bottom of the recess and that can slide only in a specific direction on a surface parallel to the contacted surface. A sheet metal part for fixing made of a sheet metal that has two sides that are different from each other at a predetermined angle as a part of the contour shape, and that is thinner than the depth of the recess;
A holding part provided with an engaging part that engages with the two sides in a state of being arranged so as to be superimposed on the other surface of the fixing sheet metal part, and is movable along these sides;
In the state where the hold component is placed in engagement with the fixing sheet metal component in the recess, an arm component fixing screw that is fastened to the arm component from the hold component side;
For the document conveying section that fixes the holding component in the recessed portion while being engaged with the fixing sheet metal component from the fixing sheet metal component side to the corresponding portion of the document conveying section via the arm component. An image processing apparatus comprising a fixing screw.

(Appendix 2)
In the apparatus main body and the document conveying section, either one of a pin for fixing the surface direction to be overlapped when fixing them in a state where they are overlapped and a boss engaging with the pin are arranged. The image processing apparatus according to supplementary note 1, which is characterized.

(Appendix 3)
2. The image processing apparatus according to claim 1, wherein a screw receiving sheet metal part for fixing the original conveying section fixing screw is attached to the original conveying section.

(Appendix 4)
The screw receiving sheet metal part is arranged so that a tongue-shaped portion having a tongue shape protrudes, and the arm part and the fixing sheet metal part are positioned with respect to the screw receiving sheet metal part. 4. The image processing apparatus according to appendix 3, wherein a positioning belo-shaped portion through-hole is formed in each of the corresponding portions when they are sequentially stacked and arranged.

(Appendix 5)
2. The image processing apparatus according to claim 1, wherein an elongated hole through which the fixing screw for arm part is inserted is formed in the fixing sheet metal part with the specific direction as a longitudinal direction.

(Appendix 6)
2. The image processing apparatus according to claim 1, wherein the fixing sheet metal part is provided with a long hole through which a fixing screw for the document conveying portion is inserted with a direction perpendicular to the specific direction as a longitudinal direction.

(Appendix 7)
2. The image processing apparatus according to claim 1, wherein the hold component has a shape that is slidable only in a direction orthogonal to the specific direction within the recess of the arm component.

(Appendix 8)
2. The image processing apparatus according to claim 1, wherein the hold component is made of resin, and a periphery of a screw fixing hole through which the document conveying unit fixing screw is inserted is thinner than other portions.

(Appendix 9)
The holding part is made of a PC / ABAS resin, the thickness of the periphery of the screw fixing hole is 1 mm, and the thickness of other parts is 4 mm or more. Image processing device.

(Appendix 10)
A document reading unit for reading a document is provided, and in the vicinity of the document reading unit in the apparatus main body, in which a shaft part is projected as a predetermined opening / closing fulcrum from the side of the casing in the vicinity of the document reading unit. A positioning pin suspended at a predetermined position on the upper surface is attached to a boss drilled at a predetermined position on the bottom of the document conveying section as an object to be freely opened and closed with the opening / closing fulcrum of the apparatus body as a rotation center. A positioning step of positioning the document conveying section on the apparatus main body by inserting;
A bearing hole serving as a bearing for the shaft component is disposed on the document conveying portion positioned on the apparatus main body in the positioning step, and at a portion serving as an arm portion, the surface is parallel to the surface on which the bearing hole is formed. An arm component disposing step of disposing a surface opposite to the opening side of the concave portion of the arm component in which a concave portion having a predetermined shape whose wall thickness is thinner than the surrounding surface is opposed to the housing side portion;
A shape that makes one surface contact the surface forming the bottom of the concave portion of the arm component arranged in the arm component arranging step, and is slidable only in a specific direction on a surface parallel to the contacted surface. And having a sheet metal part for fixing made of a sheet metal having a part of the contour shape having two sides that are inclined with respect to the specific direction at a predetermined angle and different from each other as a part of the contour shape, A fixing sheet metal component arranging step for arranging the surface forming the bottom of the recess and the one surface in contact with each other;
An engaging portion that engages with the two sides and is movable along the two sides in a state of being arranged so as to be superimposed on the other surface of the fixing sheet metal component arranged in the fixing sheet metal component arranging step. A holding part engaging step of engaging the engaging part of the holding part with the two sides of the fixing sheet metal part;
In the hold component engaging step, the hold component is engaged with the fixing sheet metal component, and the fixing sheet metal component is in contact with one surface and the surface forming the bottom of the recess of the arm component, A document conveying unit fixing screw screwing step for screwing a document conveying unit fixing screw into a corresponding portion of the document conveying unit via the arm component from the fixing sheet metal component side. Image processing apparatus opening / closing fulcrum fixing method.

(Appendix 11)
For fixing the arm part, the arm part fixing screw is fastened to the arm part from the hold part side in a state where the hold part is engaged with the fixing sheet metal part in the recess of the arm part. The image processing apparatus opening / closing fulcrum fixing method according to claim 10, further comprising a screw tightening step.

(Appendix 12)
11. The image processing apparatus opening / closing fulcrum fixing method according to claim 10, further comprising a screw receiving sheet metal part attaching step for attaching a screw receiving sheet metal part for fixing the original conveying part fixing screw to the original conveying part. .

(Appendix 13)
The screw receiving sheet metal part attached to the document conveying part in the screw receiving sheet metal part attaching step is arranged so that a tongue-shaped part having a tongue shape protrudes, and the arm with the protruding tongue-shaped part as a guide 13. The image processing apparatus opening / closing fulcrum fixing method according to claim 12, wherein the arm parts are arranged in the part arranging step and the fixing sheet metal parts are arranged in the fixing sheet metal part arranging step.

DESCRIPTION OF SYMBOLS 10, 100, 200 Image processing apparatus 11, 104 Apparatus main body 12, 102 Document conveyance part 13, 231 Arm part 14, 233 Fixing sheet metal part 15, 234 Hold part 16 Arm part fixing screw 17 Document fixing part fixing Screw 20 Image processing apparatus opening / closing fulcrum fixing method 21 Positioning step 22 Arm component placement step 23 Fixing sheet metal component placement step 24 Hold component engagement step 25 Document feeding portion fixing screw screwing step 106 Shaft component 221 Opening / closing fulcrum portion 222 Fixing screw 236 Screw receiving sheet metal parts 241, 242, 256 Screw fixing hole 243 Bello shaped part 251 Circular hole 232 Recessed part 253, 254 Screw through hole 255, 266 Bello shaped part through hole 261, 262 Inclined side part 263, 264, 271 Horizontal slot 265 Vertical Long holes 272 and 273 in the groove 311 resin embedment portion

Claims (10)

An apparatus main body provided with a document reading unit for reading a document, and projecting a shaft component as a predetermined opening / closing fulcrum from a side part of the casing near the document reading unit;
A document conveying section as an object to be freely opened and closed with the opening / closing fulcrum of the apparatus body as a rotation center;
A bearing hole serving as a bearing for the shaft component is disposed, and a concave portion having a predetermined shape whose thickness is thinner than the surrounding surface is formed on a surface parallel to the surface where the bearing hole is formed in a portion serving as an arm portion, An arm component arranged to face the side of the housing opposite to the opening side of the recess;
The arm component has a shape that allows one surface to be in contact with the surface that forms the bottom of the recess and that can slide only in a specific direction on a surface parallel to the contacted surface. A sheet metal part for fixing made of a sheet metal that has two sides that are different from each other at a predetermined angle as a part of the contour shape, and that is thinner than the depth of the recess;
A holding part provided with an engaging part that engages with the two sides in a state of being arranged so as to be superimposed on the other surface of the fixing sheet metal part, and is movable along these sides;
In the state where the hold component is placed in engagement with the fixing sheet metal component in the recess, an arm component fixing screw that is fastened to the arm component from the hold component side;
For the document conveying section that fixes the holding component in the recessed portion while being engaged with the fixing sheet metal component from the fixing sheet metal component side to the corresponding portion of the document conveying section via the arm component. An image processing apparatus comprising a fixing screw.   In the apparatus main body and the document conveying section, either one of a pin for fixing the surface direction to be overlapped when fixing them in a state where they are overlapped and a boss engaging with the pin are arranged. The image processing apparatus according to claim 1, wherein:   2. The image processing apparatus according to claim 1, wherein a screw receiving sheet metal part for fixing the original conveying section fixing screw is attached to the original conveying section.   The screw receiving sheet metal part is arranged so that a tongue-shaped portion having a tongue shape protrudes, and the arm part and the fixing sheet metal part are positioned with respect to the screw receiving sheet metal part. 4. The image processing apparatus according to claim 3, wherein a positioning-shaped tongue-shaped portion through-hole is formed in each of the corresponding portions when the components are sequentially overlapped and arranged.   The image processing apparatus according to claim 1, wherein an elongated hole through which the fixing screw for arm part is inserted is formed in the fixing sheet metal part with the specific direction as a longitudinal direction.   2. The image processing apparatus according to claim 1, wherein the fixing sheet metal part is formed with a long hole through which a fixing screw for the document conveying portion is inserted, with a direction perpendicular to the specific direction as a longitudinal direction.   The image processing apparatus according to claim 1, wherein the hold component has a shape that is slidable only in a direction orthogonal to the specific direction in the recess of the arm component.   2. The image processing apparatus according to claim 1, wherein the hold part is made of resin, and a periphery of a screw fixing hole through which the fixing screw for the document conveying unit is inserted is thinner than other parts.   9. The hold part is made of a PC / ABAS resin, the thickness around the screw fixing hole is 1 mm, and the thickness of other parts is 4 mm or more. Image processing apparatus. A document reading unit for reading a document is provided, and in the vicinity of the document reading unit in the apparatus main body, in which a shaft part is projected as a predetermined opening / closing fulcrum from the side of the casing in the vicinity of the document reading unit. A positioning pin suspended at a predetermined position on the upper surface is attached to a boss drilled at a predetermined position on the bottom of the document conveying section as an object to be freely opened and closed with the opening / closing fulcrum of the apparatus body as a rotation center. A positioning step of positioning the document conveying section on the apparatus main body by inserting;
A bearing hole serving as a bearing for the shaft component is disposed on the document conveying portion positioned on the apparatus main body in the positioning step, and at a portion serving as an arm portion, the surface is parallel to the surface on which the bearing hole is formed. An arm component disposing step of disposing a surface opposite to the opening side of the concave portion of the arm component in which a concave portion having a predetermined shape whose wall thickness is thinner than the surrounding surface is opposed to the housing side portion;
A shape that makes one surface contact the surface forming the bottom of the concave portion of the arm component arranged in the arm component arranging step, and is slidable only in a specific direction on a surface parallel to the contacted surface. And the other of the fixing sheet metal parts made of a sheet metal that has two sides that are different from each other in the arrangement position and that are inclined by a predetermined angle with respect to the specific direction as a part of the contour shape. The holding part of the holding part provided with an engaging part that engages with the two sides and is movable along the two sides in a state of being arranged so as to be superimposed on the surface of the fixing plate. A hold part engaging step for engaging with the two sides of
A fixing sheet metal part disposing step in which the fixing sheet metal part engaged with the hold part in the holding part engaging step is disposed so that the surface forming the bottom of the recess and the one surface are in contact with each other;
The holding component engages with the fixing sheet metal component in the holding component engaging step, and the fixing sheet metal component in the fixing sheet metal component arranging step forms one of the surfaces forming the bottom portion of the arm component in the recess. A document conveying unit fixing screw screwing step of screwing a document conveying unit fixing screw into a corresponding part of the document conveying unit from the fixing sheet metal component side through the arm component in a state where the surface is in contact An image processing apparatus opening / closing fulcrum part fixing method comprising:

Images