JPH0858863A - Packaging container for photo-sensitive drum - Google Patents

Abstract

PURPOSE: To assuredly protect a photosensitive layer, and prevent paper powder from generating by a method wherein a plurality of storage recessed parts which correspond with photo sensitive drums are provided on top and bottom both cushioning members, and supporting parts are provided at both end parts, and a flange which is provided at both ends of the photosenstive drum is supported by the supporting parts. CONSTITUTION: For a packaging container, a storage space for a photosensitive drum 6 is formed by putting respective storage recessed parts 21, 41 of top and bottom both cushioning members 2, 4 together so as to be confronted to each other. Then, the top and bottom both cushioning members 2, 4 are equipped with a plurality of storage recessed parts 21, 41 with a length, width and depth which correspond with the photosensitive drum 6. In this case, at both end parts of respective storage recessed parts 21, 41, supporting parts 212, 213 which are formed at a location which is higher than the bottom surface of the storage recessed parts 21, 41 are provided. Then, flanges which are provided on both ends of the photosensitive drum 6 are supported by the supporting parts 212, 213. Also, a protruding line 221 which is formed at a joining part of the top cushioning member 2 is fitted in a recessed groove 421 which is formed at a joining part of the bottom cushioning member 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container for accommodating a plurality of photosensitive drums used in an image forming machine such as an electrostatic copying machine or an electrostatic printing machine.

[0002]

2. Description of the Related Art A photosensitive drum of this type comprises a cylindrical body made of metal such as an aluminum alloy, a photosensitive layer made of an organic photoconductor formed on the outer peripheral surface of the cylindrical body made of metal, and both end portions of the cylindrical body made of metal. The flange is attached to the photosensitive layer, and the photosensitive layer is made of a material that is easily scratched. like this,
In order to convey the photosensitive drum, it is necessary to package the photosensitive layer so as not to damage it. As a packaging form of the photosensitive drum, generally, a light-shielding paper is wound on the outer peripheral surface of the photosensitive drum alone, and a cushioning mat is further wound on the light-shielding paper, and the light-shielding paper is put in a corrugated box in a grid pattern by a corrugated partition plate. It is configured to be stored in a partitioned storage space. Further, in order to prevent the photosensitive drum on which the light-shielding paper and the cushioning mat are wound from moving in the accommodation space, a cushioning member made of styrene foam is fitted to the flanges attached to both ends.

[0003]

However, it is difficult to obtain an inexpensive fixing structure for reliably preventing the photosensitive drum from moving in the accommodation space, and the corrugated board partition plates are assembled in a grid pattern. The work is also inefficient and the packaging costs are quite high. Further, there is a problem that paper dust is generated by rubbing the corrugated partition plates, and the paper dust adheres to the surface of the photosensitive layer of the photosensitive drum.

The present invention has been made in view of the above facts, and its main technical problem is to securely protect the photosensitive layer by supporting the flanges attached to both ends of the photosensitive drum. Moreover, it is an object of the present invention to provide a packaging container for a photosensitive drum that can prevent the generation of paper dust.

Another technical object of the present invention is to provide a packaging container for a photosensitive drum which can prevent dust and the like from entering the photosensitive drum housing.

Yet another technical object of the present invention is to provide a photosensitive drum packaging container capable of preventing the occurrence of load collapse when stacking the packaging containers accommodating the photosensitive drums.

[0007]

In order to solve the above technical problems, according to the present invention, a length corresponding to the length of a photosensitive drum to be accommodated, a width corresponding to the diameter of the photosensitive drum, and a Each of the buffer members includes an upper cushioning member and a lower cushioning member integrally formed of synthetic resin, each of which has a plurality of storage recesses having a depth corresponding to the radius of the photosensitive drum. 1. A packaging container in which recesses are overlapped with each other so as to form a photosensitive drum accommodating space by the accommodating recesses facing each other, and the accommodating recesses are formed at both end portions at a position shallower than a bottom surface of the accommodating recess. The present invention provides a packaging container for a photoconductor drum, comprising: a support part provided with the support part, the support part supporting flanges provided at both ends of the photoconductor drum.

Further, according to the present invention, a plurality of members having a length corresponding to the length of the photosensitive drum to be accommodated, a width corresponding to the diameter of the photosensitive drum and a depth corresponding to the radius of the photosensitive drum. And a lower cushioning member integrally formed of synthetic resin, and the recesses provided in each of the cushioning members are opposed to each other by overlapping and overlapping each other. A packaging container for forming a photosensitive drum housing space by the housing recess,
One of the upper cushioning member and the lower cushioning member has a groove formed around the outside of the plurality of accommodation recesses, and the other has a ridge that fits with the groove around the outside of the plurality of accommodation recesses. To form
The width and depth of the concave groove and the width and height of the convex line are set so that an absorption space is formed in the fitting portion in the fitted state of the concave groove and the convex line. A packaging container for a body drum is provided.

Further, according to the present invention, a plurality of members having a length corresponding to the length of the photosensitive drum to be accommodated, a width corresponding to the diameter of the photosensitive drum, and a depth corresponding to the radius of the photosensitive drum. And a lower cushioning member integrally formed of synthetic resin, and the recesses provided in each of the cushioning members are opposed to each other by overlapping and overlapping each other. A packaging container for forming a photosensitive drum housing space by the housing recess,
The outer peripheral portions of the upper cushioning member and the lower cushioning member are respectively formed at the same position as the bottom surface of the accommodating recess or at a position slightly deeper than the bottom surface, an engaging protrusion is formed on one outer peripheral portion, and the outer peripheral portion is formed on the other outer peripheral portion. Provided is a packaging container for a photosensitive drum, characterized in that an engagement hole is provided at a position corresponding to the engagement protrusion.

[0010]

The photosensitive drum having the light-shielding paper wound around the outer peripheral surface of the photosensitive layer is housed in the housing recess formed in the lower cushioning member. At this time, the flanges attached to both ends of the photosensitive drum are supported by the support portions formed at both ends of the accommodation recess. In this way, after the photosensitive drum is housed in the housing recess formed in the lower cushioning member, the upper cushioning member is covered with the lower cushioning member and held in a superposed state. In this state, the ridge formed in the joint portion of the upper cushioning member fits into the groove formed in the joint portion of the lower cushioning member.

As described above, when the packaging containers containing the photosensitive drums are stacked for storage or transportation, the engaging protrusions formed on the outer peripheral portion of the upper cushioning member and the outer peripheral portion of the lower cushioning member are formed. The engaging holes are engaged. Therefore,
It is possible to prevent collapse of loads when a large number of packaging containers are stacked and conveyed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings, which show preferred embodiments of a photosensitive drum packaging container constructed according to the present invention.

The photosensitive drum packaging container according to the present invention comprises:
The upper cushioning member 2 shown in FIGS. 1 to 3 and the lower cushioning member 4 shown in FIGS. 1 is a plan view of the upper cushioning member, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB in FIG. The upper cushioning member 2 is integrally formed by vacuum forming a polystyrene sheet in the illustrated embodiment. The upper cushioning member 2 is provided with a plurality of (10 in the illustrated embodiment) housing recesses 21 that open downward in FIGS. 2 and 3. The plurality of accommodating recesses 21 have the same structure, and each has a length corresponding to the length of the photosensitive drum to be accommodated, a width corresponding to the diameter of the photosensitive drum, and a depth corresponding to the radius of the photosensitive drum. Have From the bottom surface 211 of the accommodating recess 21 to the both ends in the longitudinal direction of the accommodating recess 21.
The support surfaces 212 and 213, which are shallow about mm, are formed,
The supporting surfaces 212 and 213 support the flanges attached to both ends of the photosensitive drum. In the illustrated embodiment, the width of the accommodation recess 21 is narrower than the width of the accommodation recess 21 on both sides in the longitudinal direction.
Working recesses 214 and 215, which are shallower than the recesses 12 and 213, are formed. The working recesses 214 and 215 are used as the receiving recesses 21.
It functions as a relief part into which a finger of a worker or a hand of a work robot is inserted when the photosensitive drum is taken in and out.

A joint portion 22 is formed around the opening side of the plurality of accommodation recesses 21. In the joint portion 22,
2 and 3 so as to surround the plurality of accommodation recesses 21.
Ridges 221, 222, 223 protruding downward at
224 is formed. Further, the joint portion 22 has
2 along the above-mentioned ridges 221, 222, 223 and 224.
Also, a plurality of fitting protrusions 225 having a circular cross section and a plurality of fitting recesses 226 having a square cross section are formed alternately in a downward direction in FIG. Outer peripheral portion 23 of upper cushioning member 2
Is the same as the bottom surface 211 of the accommodation recess 21 or the bottom surface 2
11 is formed at a position slightly deeper than 11, that is, at an upper position in FIGS.
A plurality of (1 in the illustrated embodiment) 1 are provided.

Next, the lower cushioning member 4 will be described with reference to FIGS. 4 to 6. FIG. 4 is a plan view of the lower cushioning member, and FIG.
4 is a sectional view taken along line CC in FIG. 4, and FIG. 6 is D in FIG.
It is a -D line sectional view. The lower cushioning member 4, in the illustrated embodiment, is integrally formed by vacuum-forming a polystyrene sheet in the same manner as the upper cushioning member 2 described above.
The lower cushioning member 4 corresponds to the plurality of accommodating recesses 21 formed in the upper cushioning member 2, and a plurality (up to 10 in the illustrated embodiment) that opens upward in FIGS. 5 and 6.
It is provided with the individual accommodation recess 41. Each of the plurality of housing recesses 41 also has a length corresponding to the length of the photosensitive drum housed therein, a width corresponding to the diameter of the photosensitive drum, and a depth corresponding to the radius of the photosensitive drum. Also, the bottom surface 41 of the accommodation recess 41 is provided at both ends in the longitudinal direction of the accommodation recess 41.
Supporting surfaces 412 and 413, which are shallower than 1 by 3 mm, are formed, and the supporting surfaces 412 and 413 support the flanges attached to both ends of the photosensitive drum. Therefore, the plurality of housing recesses 41 provided in the lower cushioning member 4 are formed symmetrically with the joint surface with the plurality of housing recesses 21 formed in the upper cushioning member 2. In the illustrated embodiment, working recesses 414 and 415, which are narrower than the width of the housing recess 41 and shallower than the support portions 412 and 413, are formed on both sides of the housing recess 41 in the longitudinal direction. The work recesses 414 and 415 are also the recesses to be inserted by the fingers of the worker or the hand of the work robot when the photosensitive drum is taken in and out of the storage recess 41, like the work recesses 214 and 215 formed in the upper cushioning member 2. Function as a department.

A joint portion 42 is formed around the opening side of each of the plurality of accommodation recesses 41. The joint 42 has
The ridge 22 formed on the joint portion 22 of the upper cushioning member 2
Grooves 421, 4 that fit with 1, 222, 223, 224
22, 423, 424 are formed so as to surround the plurality of accommodation recesses 41. These grooves 421, 422, 4
23 and 424 have the widths of the ridges 221, 222, and 2 described above.
The width is larger than the width of 23, 224, and the depth is also 2
It is formed deeper than the height of 21, 222, 223, and 224. The recesses 421, 42 are formed in the joint portion 42.
Fitting protrusions 225 and fitting recesses 226 formed on the joint portion 22 of the upper cushioning member 2 along the lines 2, 423, 424.
A plurality of fitting concave portions 426 and a plurality of fitting convex portions 425 are formed alternately, respectively. The fitting recess 426 has a square cross section, and one side of the fitting recess 426 has the fitting projection 225.
The diameter is approximately the same as the diameter. Further, the fitting convex portion 425 is formed in a circular cross section, and the diameter thereof is substantially the same as one side of the fitting concave portion 226 formed in a square cross section. The outer peripheral portion 43 of the lower cushioning member 4 is formed at the same position as the bottom surface 411 of the accommodation recess 41 or at a position slightly deeper than the bottom surface 411, that is, at a lower position in FIGS. There are a plurality of engaging holes 431 that engage with a plurality of engaging protrusions 231 formed on the outer peripheral portion 23 of the upper cushioning member 2 (4 in the illustrated embodiment).
It is provided).

The photosensitive drum packaging container according to the illustrated embodiment is configured as described above, and its operation will be described below with reference to FIGS. 7 to 9. When the photosensitive drum is housed in the packaging container, the light shielding paper 8 is wrapped around the outer peripheral surface of the photosensitive layer 61 of the photosensitive drum 6 to protect the photosensitive layer. The photosensitive drum 6 having the light-shielding paper 8 wound around the outer peripheral surface of the photosensitive layer 61 is housed in the housing recess 41 formed in the lower cushioning member 4. At this time, the flanges 62 and 63 attached to both ends of the photosensitive drum 6 are attached to the support portion 412 of the accommodation recess 41.
413, and thus the support surfaces 412, 413
A gap 10 is formed between the deeper bottom surface 411 and the light-shielding paper 8 wound around the outer peripheral surface of the photosensitive layer 61. In this way, when the photosensitive drum 6 is housed in the housing recess 41 formed in the lower cushioning member 4, the upper cushioning member 2 is covered on the lower cushioning member 4 and polymerized, and the fitting formed in the lower cushioning member 4 is performed. The fitting convex portion 425 and the fitting concave portion 22 formed in the upper cushioning member 2
6 and the fitting concave portion 42 formed on the lower cushioning member 4 and the fitting convex portion 225 formed on the upper cushioning member 2.
By fitting 6 together, both cushioning members are held in a joined state. At this time, the housing recess 2 formed in the upper cushioning member 2
The first support surfaces 212 and 213 are in a state of lightly contacting the flanges 62 and 63 attached to both ends of the photosensitive drum 6. In this way, by stacking the upper cushioning member 2 on the lower cushioning member 4, the photoreceptor drum 6 is housed in the photoreceptor drum housing space formed by the housing recesses facing each other. In this state, the convex grooves 221, 222, 22 formed in the joint portion 22 of the upper cushioning member 2 in the concave grooves 421, 422, 423, 424 formed in the joint portion 42 of the lower cushioning member 4.
3, 224 fit together. The ridges 221, 222, 22
The widths and heights of the grooves 3 and 224 are concave grooves 421 and 42.
Since the width and the depth of 2, 423 and 424 are smaller than the width and the depth, respectively, an absorption space 12 is formed between them in the fitted state as shown in FIG. This absorption space 1
2 functions as a space for accumulating dust or the like that passes through between the joint portion 42 of the lower cushioning member 4 and the joint portion 22 of the upper cushioning member 2 and has a function of preventing the intrusion into the accommodation recesses 21 and 41. is there. As described above, when the packaging containers accommodating the photoconductor drums are stacked for storage or transportation, as shown in FIG. 8, the engagement protrusions 231 formed on the outer peripheral portion 23 of the upper cushioning member 2 are formed. The engaging hole 431 formed in the outer peripheral portion 43 of the lower cushioning member 4 is engaged. Therefore, it is possible to prevent the collapse of loads when a large number of packaging containers are stacked and stored or transported.

The present invention has been described above based on the illustrated embodiments, but the present invention is not limited to the embodiments, and various modifications can be made within the scope of the technical idea of the present invention. In the embodiment, an example is shown in which a concave groove is formed around the outer side of a plurality of accommodation concave portions provided in the lower cushioning member, and a convex strip that fits with the concave groove is formed in the upper cushioning member. The groove may be formed in the upper cushioning member and the ridge may be formed in the lower cushioning member. Further, in the embodiment, it is shown that both the width and height of the ridges are smaller than the width and depth of the concave groove, but either one of the width or the height of the ridge of the concave groove is shown. The absorbing space may be formed by configuring the absorbing space to be smaller than the width and the depth, and these are not excluded from the technical scope of the present invention.

[0019]

The accommodating recess formed in the upper cushioning member and the lower cushioning member is provided at both ends thereof with support portions formed at a position shallower than the bottom surface of the accommodating recess. Since the flanges provided in the above are supported, a gap is formed between the photosensitive layer formed between the flanges and the bottom surfaces of the upper cushioning member and the lower cushioning member, so that an external force acts from the vertical direction. Also, the bottom surfaces of the upper cushioning member and the lower cushioning member do not contact the photosensitive layer, and therefore, the photosensitive layer can be reliably protected only by wrapping light-shielding paper on the outer peripheral surface of the photosensitive layer. Further, according to the present invention, since the upper cushioning member and the lower cushioning member constituting the packaging container are integrally molded by the synthetic resin, it is not necessary to assemble the corrugated board partition plate in a lattice shape unlike the conventional one. The packaging cost can be reduced and the generation of paper dust can be prevented in advance since the corrugated board partition plate is not used.

Further, according to the present invention, one of the upper cushioning member and the lower cushioning member is formed with a groove around the outside of the plurality of housing recesses, and the other is provided with a groove around the outside of the plurality of housing recesses. A convex strip that fits in the concave groove is formed in the concave groove, and the width and depth of the concave groove and the convex strip of the convex groove are configured so as to form an absorption space in the fitting portion in the fitted state of the concave groove and the convex strip. Since the width and height are set, the absorption space functions as a space for collecting dust or the like that enters between the joint portion of the lower cushioning member and the joint portion of the upper cushioning member, and the lower cushioning member and the upper cushioning member. It is possible to prevent dust and the like from entering the photosensitive drum housing space formed by the housing recess formed in the member.

Further, according to the present invention, the outer peripheral portions of the upper cushioning member and the lower cushioning member are formed at the same position as the bottom surface of the accommodating recess or at a position slightly deeper than the bottom surface, and one of the outer peripheral portions has an engaging projection. Since the engaging hole is formed in the other outer peripheral portion at a position corresponding to the engaging protrusion, when the packaging container accommodating the photosensitive drum is stacked for storage or transportation, the upper cushioning member or the lower cushioning member is formed. The engagement protrusion formed on the cushioning member is engaged with the engagement hole formed on the lower cushioning member or the upper cushioning member. Therefore, it is possible to prevent collapse of the load when a large number of packaging containers are stacked and conveyed.

[Brief description of drawings]

FIG. 1 is a plan view of an upper cushioning member which constitutes a packaging container for a photosensitive drum according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

3 is a cross-sectional view taken along the line BB in FIG.

FIG. 4 is a plan view of a lower cushioning member that constitutes a packaging container for a photosensitive drum according to the present invention.

5 is a cross-sectional view taken along line CC of FIG.

6 is a cross-sectional view taken along the line DD in FIG.

FIG. 7 is a cross-sectional view corresponding to the line BB and the line D-D, showing a state in which the photosensitive drum is accommodated by an upper cushioning member and a lower cushioning member that form a packaging container for the photosensitive drum.

FIG. 8 is a cross-sectional view corresponding to the line AA and line C-C, showing a state in which the photosensitive drum is housed by an upper cushioning member and a lower cushioning member that form a packaging container for the photosensitive drum.

FIG. 9 is an enlarged cross-sectional view showing a fitted state of a ridge formed in an upper cushioning member and a concave groove formed in a lower cushioning member that constitute a packaging container for the photosensitive drum.

[Explanation of symbols]

 2: Upper cushioning member 4: Lower cushioning member 6: Photoreceptor drum 8: Light-shielding paper 10: Gap 12: Absorption space 21: Recessed recess 22: Joining portion 23: Outer peripheral portion 211: Bottom of recessed portion 212: Support surface 213: Support surface 214: Working recess 215: Working recess 221: Projection 222: Projection 223: Projection 224: Projection 225: Fitting projection 226: Fitting recess 231: Engagement projection 411: Bottom of housing recess 412: Supporting surface 413: Supporting surface 414: Working recess 415: Working recess 421: Recessed groove 422: Recessed groove 423: Recessed groove 424: Recessed groove 425: Fitting convex portion 426: Fitting recessed portion 431: Engagement hole

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location G03G 21/00 350

Claims (3)

[Claims] 1. A plurality of accommodating recesses each having a length corresponding to a length of a photosensitive drum to be accommodated, a width corresponding to a diameter of the photosensitive drum, and a depth corresponding to a radius of the photosensitive drum. An upper cushioning member and a lower cushioning member which are integrally molded of synthetic resin, and the accommodating recesses provided in each of the cushioning members are overlapped with each other so as to overlap with each other. A packaging container for forming a drum accommodation space, wherein the accommodation recesses are provided at both ends thereof with support portions formed at a position shallower than a bottom surface of the accommodation recesses, and the support portions are provided at both end portions of the photosensitive drum. A container for a photosensitive drum, characterized in that it supports the formed flange. 2. A plurality of accommodating recesses each having a length corresponding to the length of the photosensitive drum to be accommodated, a width corresponding to the diameter of the photosensitive drum, and a depth corresponding to the radius of the photosensitive drum. An upper cushioning member and a lower cushioning member which are integrally molded of synthetic resin, and the accommodating recesses provided in each of the cushioning members are overlapped with each other so as to overlap with each other. A packaging container forming a drum accommodation space, wherein a groove is formed around the outside of the plurality of accommodation recesses in one of the upper cushioning member and the lower cushioning member, and the other of the plurality of accommodation recesses is formed in the other. Form a ridge that fits with the groove around the outside,
The width and depth of the concave groove and the width and height of the convex groove are set so as to form an absorption space in the fitting portion in the fitted state of the concave groove and the convex stripe. Body drum packaging container. 3. A plurality of accommodating recesses each having a length corresponding to the length of the photosensitive drum to be accommodated, a width corresponding to the diameter of the photosensitive drum, and a depth corresponding to the radius of the photosensitive drum. An upper cushioning member and a lower cushioning member which are integrally molded of synthetic resin, and the accommodating recesses provided in each of the cushioning members are overlapped with each other so as to overlap with each other. A packaging container forming a drum accommodation space, wherein outer peripheral portions of the upper cushioning member and the lower cushioning member are respectively formed at positions that are the same as or slightly deeper than the bottom surface of the accommodation recess, and engage with one outer peripheral portion. A packaging container for a photosensitive drum, characterized in that a protrusion is formed, and an engaging hole is provided at a position corresponding to the engaging protrusion on the other outer peripheral portion.