JP5325631B2 - Roll container for electrophotographic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage container for rolls for electrophotographic apparatus which excels in strength and can efficiently store more rolls for the electrophotographic apparatus. <P>SOLUTION: A plurality of sheet members 10, having a corrugated portion 22 in which alternate recesses 24 and projections 26 of trapezoidal cross-section are laid one upon another. The storage container is constructed from a honeycomb structure, formed such that a plurality of hexagonal cells as defined by the recesses 24 and projections 26 are formed parallel to one another, between the adjacent sheet members 10, and a laminate storing sections 62 for storing laminates 16 of rolls 12 for the electrophotographic apparatus are formed by such hexagonal cells. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a roll storage container for an electrophotographic apparatus, and more particularly to an improvement of a container for storing a roll for an electrophotographic apparatus in which a single-layer or multi-layer laminate is formed on the outer peripheral surface of a shaft.

  2. Description of the Related Art Conventionally, electrophotographic apparatuses such as copying machines and printers using an electrophotographic method include so-called electrophotographic apparatus rolls such as a charging roll, a developing roll, a transfer roll, a fixing roll, a toner supply roll, and a paper feed roll. ,It is used. These rolls for electrophotographic equipment are generally laminated on the outer peripheral surface of a shaft body (core metal), for example, a single-layer laminate comprising a low-hardness rubber layer, or such a rubber layer and the outer peripheral surface thereof. Structure in which a multi-layered laminate composed of a resistance adjusting layer, a protective layer, etc. is formed, or a single-layer laminated body composed of magnet pieces on the outer peripheral surface of the shaft body, and such a magnet layer and its outer periphery It has a structure in which a multi-layer laminate comprising a protective sleeve or the like laminated (extrapolated) on the surface is formed.

  By the way, in such a roll for electrophotographic equipment, if there are scratches, dirt, etc. on the surface of the laminate formed on the outer peripheral surface of the shaft body, the formed image of the electrophotographic equipment is adversely affected. Thus, conventionally, a dedicated container is used for storing and transporting such a roll for an electrophotographic apparatus. There are various types of roll storage containers for electrophotographic equipment, and one of them is a container capable of storing a laminate formed on the outer peripheral surface of a shaft body in a non-contact manner. It is clarified in 1st magnitude.

  The container is composed of a plurality of synthetic resin sheet members having a substantially longitudinal rectangular shape as a whole. On one surface of the sheet member, a plurality of plate-like partition portions extending in the longitudinal direction are provided in a state of being opposed to each other at a predetermined distance in a direction perpendicular to the longitudinal direction. A recess formed between the adjacent ones of the plurality of partition portions, with each partition portion as a side wall, is a laminate housing portion having a volume that is slightly larger than the laminate of the roll for an electrophotographic apparatus. ing. In addition, the outer peripheral portions of the sheet member that are located on both sides in the longitudinal direction with the partition portions interposed therebetween extend in the opposing direction of the partition portions (direction perpendicular to the longitudinal direction) and are adjacent to each other. A plate-like connecting portion that connects the end faces of each other is provided. Furthermore, the shaft body holding part which consists of a recessed part provided with the substantially peripheral cylindrical inner peripheral surface is provided in the part located in the approximate center between adjacent partition parts among each of these connection parts, respectively. .

  Thus, the laminated body of the roll for an electrophotographic apparatus is accommodated in the laminated body accommodating portion of the sheet member having such a structure, and the first shaft body protrudes from the end surfaces on both sides in the axial direction of the laminated body. The end portion and the second shaft body end portion are placed on and held by the shaft body holding portion of each connecting portion. Then, a plurality of sheet members that accommodate and hold such rolls for electrophotographic equipment are stacked so that the top of the partitioning portion and the bottom of the laminated body housing portion that is a recess are abutted with each other. However, it is formed in a state where a large number of rolls for electrophotographic equipment are accommodated therein.

  However, when the present inventors have examined the structure of such a conventional roll housing container for electrophotographic equipment from various angles, the conventional container includes a plurality of sheet members constituting the conventional container. There is an extra space in the laminated body accommodating part or inside the partition part located between adjacent laminated body accommodating parts. For this reason, the accommodation efficiency of the roll for electrophotographic equipment is low, and there are a plurality of spaces. It has been found that the problem of insufficient strength in a state where the sheet members are stacked in multiple stages is inherent.

JP 2007-269345 A

  Here, the present invention has been made in the background as described above, and the problem to be solved is excellent in strength and more efficiently accommodates more rolls for electrophotographic equipment. An object of the present invention is to provide a roll container for an electrophotographic apparatus.

  The present invention can be suitably implemented in various aspects listed below in order to solve the problems described above or the problems grasped from the description and drawings of the entire specification. Moreover, each aspect described below can be employed in any combination. The aspects or technical features of the present invention are not limited to those described below, and can be recognized based on the description of the entire specification and the inventive concept disclosed in the drawings. Should be understood.

(1) A container for accommodating a roll for an electrophotographic apparatus in which a laminated body is formed on an outer peripheral surface of a shaft body, and protrudes from an end surface on one axial side of the laminated body of the roll for an electrophotographic apparatus. A first shaft body holding portion that holds the first shaft body end portion, and a second shaft body holding portion that holds the second shaft body end portion protruding from the end surface on the other axial side of the laminate. A cross-sectional trapezoidal shape having a laminate housing portion that is positioned between the first shaft body holding portion and the second shaft body holding portion and accommodates the laminate in a non-contact manner. A plurality of sheet members having corrugated portions in which concave grooves and ridges are alternately positioned are stacked so that the tops of the ridges and the bottoms of the concave grooves of the respective corrugated portions abut each other. Due to the sheet member being stacked, between the adjacent ones of the stacked sheet members, The honeycomb structure has a honeycomb structure in which a plurality of hexagonal cells formed by the concave grooves and the ridges corresponding to each other in the stacking direction are juxtaposed, and the laminate housing portion includes the plurality of hexagonal cells. Each part of the sheet member on the opening side surface of the concave groove, the portions located on both sides in the extending direction across the concave groove, and the concave groove of the sheet member Clamping portions are respectively provided on the opposite side of the opening side to the portions located on both sides in the extending direction with the protrusions interposed therebetween, and a plurality of sheet members are provided. Under the stacked state, the first shaft body end portion and the second shaft body end portion of the roll for electrophotographic equipment are provided on both sides of the concave groove and the ridges. It is designed to be clamped between the clamping parts provided on both sides. Thus, the first shaft body holding portion and the second shaft body holding portion are configured by clamping portions that sandwich the first shaft body end portion and the second shaft body end portion, respectively. A roll container for an electrophotographic apparatus, characterized in that In the present invention, the hexagonal cell means a cell including both a cell having a regular hexagonal shape and a cell having a hexagonal shape approximated to a regular hexagonal shape.

(2) The roll accommodating container for an electrophotographic apparatus according to the aspect (1), wherein the plurality of sheet members have the same shape.

(3) a first outer peripheral surface contact portion that contacts an outer peripheral surface of the first shaft body end portion, a second outer peripheral surface contact portion that contacts an outer peripheral surface of the second shaft body end portion, A first end surface contact portion that contacts the end surface of the first shaft body end portion and a second end surface contact portion that contacts the end surface of the second shaft body end portion are provided. The movement of the roll for the electrophotographic apparatus in the direction perpendicular to the axis is regulated by the contact of the first and second outer peripheral surface contact portions with the outer peripheral surface of the end portion of the second shaft body, and The above aspect in which the movement of the roll for electrophotographic equipment in the axial direction is restricted by the contact of the first and second end surface contact portions with the end surfaces of the first and second shaft body end portions. The roll accommodating container for electrophotographic equipment according to (1) or (2).

(4) An engagement recess is provided in any one of the portions on both sides of the corrugated portion of the sheet member, and at least one of them is provided in the engagement recess. Engaging protrusions are provided that can be engaged with the inner peripheral surface of the engaging recess, and one of the sheet members adjacent to each other in the stacked state of the plurality of sheet members. By engaging the engagement convex portion of the other of the engagement concave portions, relative movement in the direction perpendicular to the stacking direction of the sheet members stacked on each other is prevented. The roll container for an electrophotographic apparatus according to any one of the above aspects (1) to (3) .

(5) The above aspects (1) to (1), wherein a marker portion that is positioned at a preset position only when the plurality of sheet members are stacked so as to have the honeycomb structure is provided on the sheet member. (4) The roll container for an electrophotographic apparatus according to any one of (4) .

  That is, in the roll housing container for an electrophotographic apparatus according to the present invention, a laminated body housing portion composed of hexagonal cells is formed with the corresponding hexagonal grooves and protrusions of the cross-section of the sheet members stacked on each other, Moreover, it has a honeycomb structure in which a plurality of hexagonal cells are arranged in parallel. Therefore, a larger number of laminated body accommodation portions can be efficiently provided in the accommodation container. In addition, for example, a conventional container in which a laminate housing portion having a rectangular cross section is formed by a concave groove and a convex strip having a rectangular cross section, and a concave groove and a convex strip having a trapezoidal cross section, Unlike the conventional container that does not have any hexagonal shape, the laminate housing portion formed by the present invention container has a roll for an electrophotographic apparatus that hangs on each side wall portion of the laminate housing portion made of hexagonal cells. Thus, the shear stress acting on each side wall portion of the laminate housing portion can be effectively reduced. As a result, the container of the present invention can exhibit superior properties in terms of load resistance, impact resistance, and the like, as compared with a conventional container in which the laminated body housing portion has a structure different from the hexagonal cell structure. It becomes.

  Therefore, in the roll container for an electrophotographic apparatus according to the present invention as described above, in a state where the sheet members are stacked in a multi-stage state, it is possible to ensure a high strength that can hardly be obtained with a conventional container, and more It is possible to accommodate many electrophotographic apparatus rolls very efficiently.

FIG. 3 is an explanatory view showing an embodiment of a roll housing container for an electrophotographic apparatus according to the present invention, in a cross section in a direction corresponding to a direction perpendicular to the axis of the roll for an electrophotographic apparatus housed in the container, and FIG. The cross-sectional form equivalent to the AA cross section in is shown. It is BB sectional explanatory drawing in FIG. FIG. 2 is an explanatory top view of a sheet member constituting the roll housing container for an electrophotographic apparatus shown in FIG. 1. It is CC sectional explanatory drawing in FIG. It is DD sectional explanatory drawing in FIG. It is explanatory drawing which shows one process example implemented when forming the roll accommodating container for electrophotographic equipment shown in FIG. 1, Comprising: Two things of the sheet | seat member shown in FIG. 3 are mutually stacked, The state which formed the accommodation unit is shown. It is explanatory drawing which expands and shows the axial direction cross section of the accommodating unit shown by FIG. It is explanatory drawing which shows the example of a process implemented following the process shown by FIG. 6, Comprising: (a) is the roll for electrophotographic apparatuses (in the figure, with a dashed-two dotted line in the upper part of the accommodating unit shown in FIG. (B) shows a state in which another storage unit is stacked on the storage unit.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, FIG. 1 and FIG. 2 show a charging roll container of a copying machine as an embodiment of a roll container for an electrophotographic apparatus having a structure according to the present invention. Each is shown in a longitudinal section in a direction corresponding to the direction. As is clear from these drawings, the storage container of the present embodiment has a plurality of (here, six) sheet members 10, and the plurality of sheet members 10 are arranged in the vertical direction in FIGS. 1 and 2. It is configured by stacking in multiple stages. A charging roll 12 (shown by a two-dot chain line in FIGS. 1 and 2) can be accommodated between the sheet members 10 that are adjacent to each other in the vertical direction among the stacked sheet members 10. . In the charging roll 12 housed in the housing container of the present embodiment, a laminated body 16 including a rubber layer, a resistance adjusting layer, and a protective layer is laminated on the outer peripheral surface of the shaft body 14. The first shaft body end portion 18 and the second shaft body end portion 20 are projected from the end surfaces on both sides in the axial direction. In the following, in the storage container of the present embodiment and the sheet member 10 constituting the container, the direction corresponding to the vertical direction in FIGS. 1 and 2 will be referred to as the vertical direction for convenience.

  More specifically, the sheet member 10 constituting the container of the present embodiment is made of a transparent resin molded body formed using a resin material such as polyvinyl chloride, polyethylene terephthalate, or polystyrene. . As shown in FIG. 3, the sheet member 10 has a substantially longitudinal rectangular shape as a whole, and a corrugated portion 22 is formed in a portion that enters the inside from the outer peripheral portion.

  As apparent from FIGS. 3 and 4, the corrugated portion 22 has a trapezoidal cross section that opens at the upper surface of the sheet member 10, and the longitudinal direction of the sheet member 10 (in the left-right direction in FIG. A groove 24 extending in a direction perpendicular to the paper surface and a ridge 26 projecting upward with the same trapezoidal cross-sectional shape as the groove 24 and extending in the longitudinal direction of the sheet member 10 are formed in the width direction of the sheet member 10 ( A plurality of pieces (here, six pieces) are provided so as to be alternately arranged in the vertical direction of FIG. 3 and in the horizontal direction of FIG. 4.

  The concave groove 24 is longer than the axial length of the stacked body 16 of the charging roll 12 and shorter than the axial body 14, the maximum width larger than the diameter of the stacked body 16, and the radius of the stacked body 16. Also has a great depth. On the other hand, the ridge 26 is also longer than the axial length of the laminated body 16 of the charging roll 12 and shorter than the axial body 14, the maximum width larger than the diameter of the laminated body 16, and the radius of the laminated body 16. Also has a great height.

Thereby, the inner space surrounded by the bottom portion 28 of the concave groove 24 and the two side wall portions 30, 30 is divided into two halves in the axial direction of the laminate 16 of the charging roll 12, and the laminate 16. The first shaft body end portion 18 and the second shaft body end portion 20 projecting from the both end faces are sized to accommodate a part of each laminated body 16 side. Further, on the lower surface side of the sheet member 10, the inner space of the ridge 26, which is surrounded by the top portion 32 of the ridge 26 and the two side wall portions 30, 30, also extends in the axial direction of the laminate 16 of the charging roll 12. A size capable of accommodating the halved portion divided into two parts and a part of each of the first shaft body end portion 18 and the second shaft body end portion 20 on the side of the laminate body 16 projecting from both end faces of the laminate body 16. It is said. Here, the width: W ₁ of the bottom portion 28 of the concave groove 24 and the width: W ₂ of the top portion 32 of the ridge 26 are smaller than the respective lengths: L of the side wall portions 30 by a predetermined dimension. .

  Thus, in the present embodiment, on the upper surface side of the sheet member 10, the same number of first laminated body accommodating portion forming recesses 34 formed of the concave grooves 24 are formed as the concave grooves 24, and also on the lower surface side thereof. The same number of second laminated body accommodation portion forming recesses 36 as the inner surface portion on the lower surface side of the sheet member 10 in the ridges 26 are formed. The first laminate housing portion forming recesses 34 and the second laminate housing portion forming recesses 36 are alternately positioned in the width direction of the sheet member 10.

  As shown in FIGS. 3 to 5, the lower surface of the bottom portion 28 of the groove 24 forming the first laminate housing portion forming recess 34 opens downward, and the outer peripheral surface of the half cylinder. A plurality of (six in this case) recesses 38 having a bottom surface corresponding to the shape are provided at equal intervals in the length direction of the laminate housing portion forming recess 34. On the other hand, on the upper surface of the top portion 32 of the ridge 26 forming the second laminate housing portion forming recess 36, it was raised one step higher than the other portions at a plurality of locations in the length direction (here, 6 locations). One convex portion 40 is formed for each. The protruding height of the convex portion 40 from the upper surface of the top portion 32 is approximately the same as the minimum depth of the concave portion 38.

  Further, at the end portions on both sides in the length direction across the corrugated portion 22 on the upper surface of the sheet member 10, the first sandwiching protrusions 42 as the sandwiching portions are the lengths of the respective first laminate housing portion forming recesses 34. On the extension of the center line extending in the vertical direction, one piece protrudes upward. On the other hand, the second sandwiching protrusions 44 as the sandwiching portions are also provided at the end portions on both sides in the length direction sandwiching the corrugated portion 22 on the lower surface of the sheet member 10. On the extension of the center line extending in the vertical direction, one piece protrudes downward. That is, a plurality of first clamping protrusions 42 and second clamping protrusions 44 are positioned at equal intervals in the width direction of the sheet member 10 at both end portions in the longitudinal direction of the upper surface and the lower surface of the sheet member 10. It is provided as follows. And while the 1st laminated body accommodating part formation recessed part 34 is each arrange | positioned between the 1st clamping protrusions 42 correspondingly located in the length direction of the sheet member 10, it respond | corresponds in the length direction of the sheet member 10. Between the 2nd clamping protrusion 44 located, the 2nd laminated body accommodating part formation recessed part 36 is each arrange | positioned.

  The first clamping protrusions 42 projecting on both sides in the length direction of each first laminate housing portion forming recess 34 have a flat plate shape having a width smaller than the maximum width of the first laminate housing portion forming recess 34. The protruding tip end face is positioned at the same height as the top face of the top 32 of the ridge 26. The second holding projections 44 projecting on both sides in the length direction of each second laminate housing portion forming recess 36 have a flat plate shape having a width smaller than the maximum width of the second laminate housing portion forming recess 36. The protruding front end surface is positioned at the same height as the lower surface of the bottom 28 of the concave groove 24.

  In addition, a central portion in the width direction of the projecting tip surface of each of the first clamping protrusion 42 and the second clamping protrusion 44 has a half diameter that is slightly larger than the outer diameter of the shaft body 14 of the charging roll 12. Recesses each having a split cylindrical inner peripheral surface are provided. And the recessed part each provided in such 1st and 2nd clamping protrusions 42 and 44 is each 1st shaft body of each of the some charging roll 12 accommodated in the storage container so that it may mention later. The outer peripheral surface contact portion 46 is in contact with the outer peripheral surface of the end portion 18 and the substantially half peripheral portion of the outer peripheral surface of the second shaft end portion 20.

  Furthermore, end surface contact portions 48 are formed on the upper surface of the sheet member 10 on both sides in the longitudinal direction with the corrugated portion 22 therebetween, and the first laminate housing portion is formed with the first holding protrusion 42 interposed therebetween. A single piece is formed on the opposite side of the recess 34 (concave groove 24). That is, a plurality (six in this case) of end surface contact portions 48 are positioned at equal intervals in the width direction of the sheet member 10 at both ends in the longitudinal direction of the upper surface of the sheet member 10. Provided between the end surface contact portions 48 corresponding to each other in the length direction, two first clamping protrusions 42 and 42 and one first laminate housing portion forming recess 34 are respectively provided. It is arranged.

  The end surface contact portion 48 is formed of a projection portion having a substantially quadrangular pyramid shape, and has four side surfaces that are inclined upward toward the central axis. Of these four side surfaces, the side surface of the first sandwiching protrusion 42 opposite to the side opposite to the first laminate housing portion forming recess 34 side is accommodated in the housing container as will be described later. Further, the contact surface 50 is in contact with the end surface of the first shaft end 18 and the end surface of the second shaft end 20 of each of the plurality of charging rolls 12.

  On the other hand, a stepped portion 52 has substantially the same length as the corrugated portion 22 at the widthwise central portion of one end in the width direction across the corrugated portion 22 on the upper surface of the sheet member 10. It is provided so as to extend in the length direction. The stepped portion 52 has an inner portion of the width direction end portion positioned on the corrugated portion 22 side further than the stepped portion 52 and an outer portion of the width direction end portion positioned on the opposite side of the stepped portion 52 from the corrugated portion 22 side. It is configured to be one step lower than that. As a result, among the end portions on one side in the width direction of the sheet member 10, the inner portion on the corrugated portion 22 side that is lowered by the stepped portion 52 is defined as the concave end portion 53.

  In addition, a plurality of rectangular engaging recesses 54 opening downward are provided on the lower surface of the concave end portion 53 at a predetermined interval in the length direction of the sheet member 10 (here, 7). Formed). In addition, among the end portions on one side in the width direction of the sheet member 10, the outer portion located on the opposite side to the concave end portion 53 side with the stepped portion 52 interposed therebetween is on one end side in the length direction. A rectangular notch 56 is formed.

  Further, the stepped portion 58 has substantially the same length as the corrugated portion 22 at the widthwise central portion of the other end in the widthwise direction with the corrugated portion 22 sandwiched therebetween on the upper surface of the sheet member 10. It is formed to extend in the length direction. The stepped portion 58 has an inner portion of the width direction end portion positioned on the corrugated portion 22 side further than the stepped portion 58 and an outer portion of the width direction end portion positioned on the opposite side of the stepped portion 58 from the corrugated portion 22 side. It is configured so that it can be made higher than that. As a result, of the end portion on the other side in the width direction of the sheet member 10, an inner portion on the corrugated portion 22 side that is raised by the stepped portion 52 is a convex end portion 59.

  Further, on the upper surface of the convex end portion 59, there are the same number of engaging convex portions 60 protruding upward as the engaging concave portions 54 at a predetermined interval in the length direction of the sheet member 10. (7 locations here) are provided. The engaging convex portion 60 has a rectangular shape that enters the engaging concave portion 54 and has a size capable of engaging with the entire inner peripheral surface of the engaging concave portion 54 on the outer peripheral surface.

  A plurality of sheet members 10 having such a structure are stacked on each other to form the charging roll container of this embodiment. A large number of charging rolls 12 are placed in the charging roll container. When housing, for example, the operation is performed as follows.

  That is, first, a plurality (six in this case) of charging rolls 12 are arranged on one sheet member 10 arranged as shown in FIG. At that time, as indicated by a two-dot chain line in FIGS. 3 to 5, each of the plurality of (in this case, six) charging rolls 12 is laid sideways, and each of the laminates 16 is Each of the sheet members 10 is accommodated in the first stacked body accommodating portion forming recess 34 in a non-contact manner, and below the outer peripheral surfaces of the first shaft body end portion 18 and the second shaft body end portion 20. The first and second shafts are configured so that the substantially half-circumferential portion contacts the outer peripheral surface contact portions 46, 46 of the first clamping protrusions 42, 42 located on both sides of each first laminate housing portion forming recess 34, respectively. The body end portions 18 and 20 are supported by the first clamping protrusions 42 and 42, respectively.

  Next, as shown in FIG. 6, the sheet member 10 different from the sheet member 10 in which the plurality of charging rolls 12 are arranged as described above is rotated 180 ° in the horizontal plane from the arrangement state shown in FIG. Then, they are stacked on the upper side of the sheet member 10 on which the plurality of charging rolls 12 are arranged.

  At this time, the top portion of the convex end portion 59 of the sheet member 10 disposed on the lower side and the bottom portion of the concave end portion 53 of the sheet member 10 stacked on the upper side are overlapped with each other, and the sheet member positioned on the lower side The plurality of engaging convex portions 60 provided on the ten convex end portions 59 are plunged into the plurality of engaging concave portions 54 provided on the concave end portion 53 of the sheet member 10 located on the upper side. The inner and outer peripheral surfaces are engaged with each other.

Further, the upper surface of the top portion 32 of each protrusion 26 of the sheet member 10 positioned on the lower side and the lower surface of the bottom portion 28 of each concave groove 24 of the sheet member 10 positioned on the upper side are overlapped, and the lower sheet member The ten concave grooves 24 and the ridges 26 of the upper sheet member 10 are positioned in the vertical direction. Thereby, in the mutually corresponding thing of the 1st laminated body accommodation part formation recess 34 which consists of each ditch | groove 24, and the 2nd laminated body accommodation part formation recess 36 comprised by each protruding item | line 26, The laminated body accommodating portion 62 having a hexagonal cross section is formed between the two sheet members 10 and 10 stacked on each other by the same number as the concave grooves 24 and the ridges 26. As in the cause, the width of the bottom 28 of the groove 24: the width of each of the top portion 32 of the W ₁ or ridges 26: W ₂ are those of the side wall portions of width: because it is smaller than L, The laminated body accommodation part 62 is not a regular hexagon, but has a shape approximated thereto.

  Further, the second clamping protrusions 44 of the upper sheet member 10 are abutted against the first clamping protrusions 42 of the lower sheet member 10 on both sides in the length direction of the respective laminate housing portions 62.

  In addition, when the two sheet members 10 and 10 are stacked on each other so as to form the laminate housing portion 62 as described above, a notch portion 56 provided on the outer peripheral portion of the sheet member 10 disposed on the lower side, and The notches 56 provided on the outer periphery of the sheet member 10 disposed on the upper side are positioned diagonally to each other. For this reason, in the present embodiment, when the two sheet members 10 and 10 are stacked on each other, without confirming the respective positions and orientations of the concave grooves 24 and the ridges 26 provided in each sheet member 10 one by one, Simply confirm from the appearance whether the notches 56 of the sheet members 10 are positioned diagonally to each other, and if the two sheet members 10 and 10 are stacked, the sheet members 10 stacked on each other In the meantime, the laminate housing portion 62 having the above-described structure can be easily formed. As is clear from this, in the present embodiment, the notch portion 56 constitutes a marker portion.

  Further, when the upper surface of the top portion 32 of each protrusion 26 in the lower sheet member 10 and the lower surface of the bottom portion 28 of each groove 24 in the upper sheet member 10 are overlapped, the top portion 32 of each protrusion 26. The protrusions 40 provided in the recesses are inserted into the recesses 38 provided on the lower surface of the bottom 28 of each groove 24 and are fitted. The concave-convex fitting between the convex portions 40 and the concave portions 38, the concave-convex fitting between the convex end portions 59 and the concave end portions 53, and the concave-convex fitting between the engaging convex portions 60 and the engaging concave portions 54. Accordingly, the relative movement in the horizontal direction of the two sheet members 10 stacked on each other is prevented. Therefore, the sheet member 10 stacked on the surface of the stacked body 16 is brought into contact with the surface of the stacked body 16 of the charging roll 12 due to an unnecessary positional shift in the horizontal direction. It is possible to effectively prevent the occurrence of the above.

  Thus, the laminate 16 of each charging roll 12 disposed on the lower sheet member 10 is accommodated in each laminate accommodating portion 62 in a non-contact manner. Further, as shown in FIG. 7, the first shaft end 18 of each charging roll 12 includes a first clamping protrusion 42 of the lower sheet member 10 and a second clamping protrusion 44 of the upper sheet member 10. And the outer peripheral surface of the sandwiched portion of the first shaft end 18 is the outer periphery of each of the first sandwiching protrusion 42 and the second sandwiching protrusion 44 over the entire periphery. The surface contact portions 46 are brought into contact with each other. At this time, the end surface of the first shaft body end portion 18 is brought into contact with the contact surface 50 of the end surface contact portion 48 located on the opposite side to the concave groove 24 side of the first clamping protrusion 42. As is clear from this, in the present embodiment, the first clamping protrusion 42 positioned on one side in the length direction of the lower sheet member 10 and the second clamping protrusion 44 of the upper sheet member 10 positioned corresponding thereto. And the first shaft body holding portion, and the outer peripheral surface contact portions 46 and 46 of the respective clamping protrusions 42 and 44, respectively, constitute a first outer peripheral surface contact portion, A first end surface contact portion is configured by the end surface contact portion 48 located on the opposite side of the first clamping protrusion 42 from the concave groove 24 side.

  On the other hand, although not shown, the second shaft end portion 20 of each charging roll 12 also includes the first clamping protrusion 42 of the lower sheet member 10 and the second clamping protrusion 44 of the upper sheet member 10. The outer peripheral surface of the sandwiched portion of the second shaft end portion 20 is the outer peripheral surface of each of the first sandwiching protrusion 42 and the second sandwiching protrusion 44 on the entire periphery thereof. The contact portions 46 are brought into contact with each other. At this time, the end surface of the second shaft body end portion 20 is brought into contact with the contact surface 50 of the end surface contact portion 48 located on the side opposite to the concave groove 24 side of the first clamping protrusion 42. As is clear from this, in the present embodiment, the first clamping protrusion 42 positioned on the other side in the length direction of the lower sheet member 10 and the second clamping protrusion 44 of the upper sheet member 10 positioned corresponding thereto. And the second shaft body holding portion, and the outer peripheral surface contact portions 46 and 46 of the respective holding projections 42 and 44, respectively, constitute a second outer peripheral surface contact portion, A second end surface contact portion is configured by the end surface contact portion 48 located on the opposite side of the first clamping protrusion 42 from the concave groove 24 side.

  Thus, the first storage unit 64a in which the plurality of charging rolls 12 are stored between the two sheet members 10 and 10 stacked on each other is formed. The charging roll 12 accommodated in the first accommodation unit 64a is perpendicular to the axis due to the contact of the first and second shaft end portions 18 and 20 with the outer peripheral surface contact portions 46 and the end surface contact portions 48. The movement in the direction and the axial direction is prevented. Thus, contact of the laminate 16 accommodated in the laminate accommodation portion 62 with the sheet member 10 can be prevented in advance.

  Next, as shown in FIG. 8A, on the sheet member 10 located on the upper side of the two sheet members 10, 10 constituting the first accommodation unit 64a, the first accommodation unit 64a A plurality of charging rolls 12 different from the charging rolls 12 accommodated in the apparatus are disposed. The arrangement of the charging roll 12 on the sheet member 10 is performed according to the same procedure as that for arranging the charging roll 12 on the lower sheet member 10 of the first storage unit 64a.

  Thereafter, as shown in FIG. 8B, the second storage unit 64b produced separately from the first storage unit 64a is stacked on the first storage unit 64a in the same operation procedure as described above. . At this time, each 1st laminated body accommodation part formation recessed part 34 of the sheet | seat member 10 located above the 1st accommodation unit 64a, and each 2nd laminated body of the sheet | seat member 10 located below the 2nd accommodation unit 64b A plurality of laminated body accommodating portions 62 are newly formed in the accommodating portion forming recess 36, and the charging rolls 12 are accommodated in the newly formed laminated body accommodating portions 62, respectively. .

  Further, the convex portions 40 of the respective convex ridges 26 of the upper sheet member 10 in the first accommodating unit 64a are concavo-convexly fitted to the concave portions 38 of the respective concave grooves 24 of the lower sheet member 10 in the second accommodating unit 64b. In addition, the engaging convex portion 60 of the convex end portion 59 of the upper sheet member 10 in the first accommodating unit 64a is the engaging concave portion of the concave end portion 53 of the lower sheet member 10 in the second accommodating unit 64b. Concave and convex are fitted to 54. Thereby, the relative movement in the horizontal direction of the 1st accommodating unit 64a and the 2nd accommodating unit 64b comes to be prevented. In addition, also when stacking such two accommodation units 64a and 64b, each notch part 56 of the sheet | seat member 10 stacked | stacked directly is located on the diagonal.

  Then, by sequentially stacking a plurality of sheet members 10 while sequentially repeating the above-described operations, as shown in FIG. 1, stacking is performed between adjacent ones of the stacked sheet members 10. A charging roll storage container is formed with a honeycomb structure in which a plurality of hexagonal cells constituting the body storage section 62 are arranged in parallel, and the charging roll 12 is stored in each stacked body storage section 62 of the storage container. .

  As described above, the charging roll storage container of the present embodiment is configured with a honeycomb structure having a large number of stacked body storage portions 62 made of cells having a hexagonal cross section, and therefore, the concaves forming the stacked body storage portions 62 are formed. The load of the charging roll 12 applied to the side walls 30 of the grooves 24 and the ridges 26 is advantageously decomposed, and the shear stress acting on the side walls 30 can be effectively reduced. As a result, the sheet member having a rectangular-shaped or trapezoidal laminate housing portion forming recess has superior characteristics in terms of load resistance, impact resistance, etc., compared to a conventional container having a structure in which the sheet member is simply stacked. Can be demonstrated. In addition, the number of stacked body accommodation portions 62 provided in the accommodation container can be effectively increased as compared with a conventional container having the same size, height, length, width, and the like.

  Therefore, in the charging roll storage container of this embodiment as described above, in a form in which a plurality of sheet members 10 are stacked in a multi-stage, high strength that cannot be obtained with conventional containers can be stably secured. In addition, more rolls for electrophotographic equipment can be accommodated very efficiently.

  Moreover, the charging roll storage container of this embodiment is formed using the some sheet | seat member 10 which exhibits the same shape. Therefore, as compared with the case where a plurality of types of sheet members 10 having different shapes are used, the productivity of the entire storage container can be advantageously improved, and further, the manufacturing cost can be effectively reduced. It becomes.

  Further, in the present embodiment, when the plurality of sheet members 10 are stacked in multiple stages, each of the sheet members 10 is simply provided on the stacked sheet members 10 without confirming the positions of the concave grooves 24 and the ridges 26 of each sheet member 10 one by one. By simply positioning the cut-out portions 56 on the diagonal line, it is possible to accurately form a storage container having a honeycomb structure with the plurality of sheet members 10. Therefore, the operation of forming the storage container and the operation of storing the plurality of charging rolls in the storage container can be performed more smoothly and easily.

  Here, in order to confirm that the charging roll container according to the present embodiment has an excellent strength as described above, the tests performed by the present inventors will be described in detail.

  That is, first, as shown in FIGS. 3 to 5, eleven resin sheet members having corrugated portions in which trapezoidal grooves and ridges having a trapezoidal cross section are alternately positioned, Got ready. Then, the 11 sheet members were stacked in multiple stages as shown in FIG. 1 to form a charging roll container having a honeycomb structure. This was designated as Test Product 1. Further, 60 charging rolls were accommodated in the charging roll storage container of the test product 1. Next, the charging roll storage container of the test product 1 storing the 60 charging rolls was stored in cardboard (WF, K6 × K6), and the storage port was sealed with gummed tape.

  For comparison, eleven resin sheet members each having a corrugated portion in which concave grooves and ridges having a rectangular cross section were alternately positioned were prepared and prepared. The material of the sheet member was the same as the material of the sheet member constituting the charging roll container having the honeycomb structure. Then, the 11 sheet members are stacked in multiple stages so that the tops of the ridges and the bottoms of the grooves are abutted with each other to form a charging roll container having the same structure as the conventional one having no honeycomb structure. did. This was designated as Test Product 2. Further, 60 charging rolls were accommodated in the charging roll storage container of the test product 2. Next, the charging roll storage container of the test product 2 storing the 60 charging rolls was stored in cardboard (WF, K6 × K6), and the storage port was sealed with gummed tape.

  Next, in order to confirm the strength of each of the test product 1 and the test product 2, the cardboard containing the test product 1 and the cardboard containing the test product 2 are used, and the drop test for them conforms to JIS Z0202. And implemented. The drop test condition was a bottom drop test with a drop height of 60 cm.

  As a result of the drop test, no load collapse occurred in either the cardboard containing the charging roll container of the test product 1 or the cardboard containing the charging roll container of the test product 2, but the test product 2 In the charging roll container, cracks occurred in the corners of the lowermost sheet member in the cardboard. On the other hand, in the charging roll container of the test product 1, no cracks occurred in all the sheet members. From this, it can be clearly recognized that the charging roll container having the structure according to the present invention has superior strength as compared with the conventional container.

  The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention is not limited by the above description.

  For example, in the above-described embodiment, the cross-sectional shape of the multilayer body accommodation portion 62 is a shape that approximates a regular hexagon. However, the cross-sectional shape of the multilayer body accommodation portion 62 is more preferably a regular hexagon. As a result, the strength and housing efficiency of the housing container having a honeycomb structure can be further advantageously increased.

  Further, the number of the grooves 24 and the ridges 26 forming the laminate housing portion 62 with respect to the sheet member 10 and the size thereof are the size of the roll for the electrophotographic apparatus such as the charging roll 12 to be housed. Needless to say, it can be changed as appropriate.

  Furthermore, in the said embodiment, although the marker part was comprised in the notch part 56 provided in the outer peripheral part of the sheet | seat member 10, this sheet | seat member 10 is mutually stacked | stacked, between them, In addition, when the hexagonal cell composed of the groove 24 and the ridge 26 is appropriately formed, it can be visually confirmed from the outside that it is arranged at a predetermined position. There is no particular limitation on the structure. Therefore, instead of the notch portion, an uneven portion is formed at a predetermined position of the sheet member 10 or various printed layers are formed, and the marker portion is configured by the uneven portion and the printed layer. You can also

  Furthermore, the sheet members 10 to be stacked may not necessarily have the same overall shape.

  In addition, in the above-described embodiment, the present invention is applied to a charging roll container for a copying machine. However, the present invention is advantageous for any roll container for an electrophotographic apparatus. Of course, it applies.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Sheet | seat member 12 Charging roll 14 Shaft body 16 Laminated body 18 1st shaft body edge part 20 2nd shaft body edge part 22 Corrugated part 24 Concave groove 26 Projection 28 Bottom part 32 Top part 42 1st clamping protrusion 44 2nd clamping Projection 46 Outer peripheral surface contact portion 48 End surface contact portion 56 Notch portion 62 Laminate housing portion

Claims (5)

A container for accommodating a roll for an electrophotographic apparatus in which a laminate is formed on an outer peripheral surface of a shaft body, the first container projecting from an end face on one axial side of the laminate of the roll for an electrophotographic apparatus A first shaft body holding portion for holding a shaft body end portion; a second shaft body holding portion for holding a second shaft body end portion protruding from the end surface on the other axial side of the laminated body; In what is located between one shaft body holding part and the second shaft body holding part, and has a laminated body housing part for housing the laminated body in a non-contact manner,
A plurality of sheet members having corrugated portions in which trapezoidal concave grooves and ridges are alternately positioned so that the top of the ridges and the bottom of the groove of each corrugated portion abut each other. By being stacked, a plurality of hexagonal cells formed by the concave grooves and the ridges corresponding to each other in the stacking direction of the sheet members are arranged in parallel between adjacent ones of the stacked sheet members. And having a honeycomb structure that is caulked, and the laminate housing portion is constituted by each of the plurality of hexagonal cells ,
A portion of the surface of the sheet member on the opening side of the groove, which is located on both sides in the extending direction with the groove interposed therebetween, and a surface opposite to the opening side of the groove of the sheet member And a plurality of sheet members in the stacked state, respectively, with respect to the portions located on both sides in the extending direction with the protrusions sandwiched therebetween. The first shaft body end portion and the second shaft body end portion of the roll for equipment include the sandwiching portions provided on both sides of the concave groove and the sandwiching portions provided on both sides of the ridge. So that the first shaft body holding portion and the second shaft body holding portion are connected to each other between the first shaft body end portion and the second shaft body end portion. A roll storage container for an electrophotographic apparatus, characterized in that it is composed of a clamping part that clamps each part .   The roll container for an electrophotographic apparatus according to claim 1, wherein the plurality of sheet members have the same shape.   A first outer peripheral surface contact portion that contacts an outer peripheral surface of the first shaft body end portion; a second outer peripheral surface contact portion that contacts an outer peripheral surface of the second shaft body end portion; A first end surface contact portion that contacts the end surface of the shaft body end portion and a second end surface contact portion that contacts the end surface of the second shaft body end portion are provided, and the first and second shafts are provided. The movement of the roll for electrophotographic equipment in the direction perpendicular to the axis is restricted by the contact of the first and second outer peripheral surface contact portions with the outer peripheral surface of the body end, and the first and second 2. The axial movement of the roll for an electrophotographic apparatus is restricted by the contact of the first and second end surface contact portions with the end surface of the end portion of the second shaft body. Item 3. A roll container for an electrophotographic apparatus according to Item 2. An engagement recess is provided in any one of the portions on both sides of the corrugated portion of the sheet member, and at least one of them enters the engagement recess. An engagement convex portion that is engageable with an inner peripheral surface of the engagement concave portion, and the engagement of one of the sheet members adjacent to each other in the stacked state of the plurality of the sheet members By engaging the other of the engaging convex portions with the concave portion, relative movement in the direction perpendicular to the stacking direction of the sheet members stacked on each other is prevented. The roll container for an electrophotographic apparatus according to any one of claims 1 to 3 . In only when the plurality of sheet members are stacked to have the honeycomb structure, the marker portion is caused to position a preset position, out of claims 1 to 4 is provided on the sheet member The roll accommodating container for electrophotographic equipment according to any one of the above.

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