JP2018151532A - Cylindrical body holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical body holder in which a liquid such as a cleaning fluid hardly remains and a method for manufacturing a photosensitive drum using the holder.SOLUTION: A holder 1 includes a holder body unit 2 that is inserted and disposed from a lower end opening of a cylindrical body 30 into an inside 31 of the cylindrical body 30, and a receiving unit 10 having a receiving face 11 that makes a low end 32 of the cylindrical body 30 contact with the low end 32 to receive it. The holder body unit 2 includes a plurality of first blade units 5 that radially protrude in a radially outside direction relative to a shaft line P of the holder 1 and extend in a shaft line P direction of the holder 1. The receiving unit 10 includes a plurality of second blade units 15 that radially protrude in a radially outside direction relative to the shaft line P and extend in the shaft line P direction. An upper end face 16 of the second blade unit 15 includes the receiving face 11. The first blade unit 5 and the second blade unit 15 are separated in a peripheral direction of the holder 1.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cylindrical body holder used for transporting, storing, cleaning, drying, and the like of a cylindrical body such as a photosensitive drum base, and a method for manufacturing a photosensitive drum using the holder.

  When a photosensitive drum substrate is transported, stored, washed, or dried to produce a photosensitive drum for an electrophotographic apparatus as a cylindrical body, for example, the substrate is generally held upright on a holder (for example, Patent Document 1).

  As shown in FIG. 12, the conventional holding body 501 includes a holding body main body portion 502 that is inserted into the inside 531 of the base body 530 from the lower end opening of the base body (shown by a two-dot chain line) 530, and a lower end surface 532 of the base body 530. And a trapezoidal receiving portion 510 having a receiving surface 511 that receives the lower end surface 532 in contact therewith. The holding body main body 502 is provided upright with respect to the receiving portion 510.

  The holding body body 502 includes a plurality of first blade portions 505 that project radially outward from the axis P of the holding body 501 and extend in the direction of the axis P of the holding body 501.

  The receiving portion 510 is formed integrally with the lower end portion of the holding body main body 502, and protrudes radially outward with respect to the axis P of the holding body 501 and extends in the axis P direction of the holding body 501. A second blade portion 515 is provided. The second blade portion 515 is formed integrally with the lower end portion of the first blade portion 505, and further protrudes radially outward from the first blade portion 505. The receiving surface 511 includes a part of the upper end surface 516 of the second blade portion 515.

Japanese Patent Laid-Open No. 7-333865 (FIG. 1)

  In the above-described holding body 501, as shown in the figure (upper), the positions of the first blade portion 505 and the second blade portion 515 in the circumferential direction of the holding body 501 all coincide. Further, the outer end surface 506 of the first blade portion 505 is provided so as to rise with respect to the upper end surface 516 of the second blade portion 515, and the outer end surface of the first blade portion 505 and the upper end surface 516 of the second blade portion 515. A corner portion 501 a having a substantially L-shaped cross section is formed between the first and second portions 506.

  Therefore, if the base 530 is cleaned while the base 530 is held by the holding body 501, the cleaning liquid tends to accumulate in the corners 501a on the upper end surface 516 of the second blade portion 515. It was easy for the cleaning liquid to remain in the corner 501a. If the cleaning liquid remains, the remaining cleaning liquid may adhere to the vicinity of the lower end of the inner peripheral surface of the base 530 or the lower end surface 532 and stain may occur in the portion. Further, in order to dry and remove the cleaning liquid so that the cleaning liquid does not remain in the corner corner portion 501a, the drying time of the substrate 530 has to be set long.

  The present invention has been made in view of the above-described technical background, and an object of the present invention is to provide a cylindrical body holding body in which a liquid such as a cleaning liquid hardly remains, and a method for manufacturing a photosensitive drum using the holding body. is there.

  The present invention provides the following means.

[1] A holding body main body inserted and disposed in the inside of the cylindrical body from the lower end opening of the cylindrical body,
A receiving portion having a receiving surface that receives the lower end of the cylindrical body in contact with the lower end, and
The holder body includes a plurality of first blade portions that project radially outward with respect to an axial line and extend in the axial direction;
The receiving portion includes a plurality of second blade portions projecting radially outward from the axis and extending in the axial direction, and an upper end surface of the second blade portion includes the receiving surface. ,
A cylindrical holding body in which the first blade portion and the second blade portion are spaced apart from each other in the circumferential direction of the holding body.

  [2] The cylindrical body holding according to the preceding item 1, wherein the first blade portion extends downward from a height position above the height position of the receiving surface to at least a height position equivalent to the receiving surface. body.

  [3] The cylindrical body according to item 1 or 2, wherein a portion of the upper end surface of the second blade portion on the axis line side with respect to the receiving surface is located at a lower height than the receiving surface. For holding body.

[4] The holding body main body is divided into a portion on the receiving portion side and a portion on the upper side thereof, and both the portions are detachably connected,
4. The cylindrical body holder according to any one of the preceding items 1 to 3, wherein the receiving portion integrally has a portion on the receiving portion side.

  [5] A method for producing a photosensitive drum, wherein the photosensitive drum substrate is washed and dried in a state in which the cylindrical photosensitive drum substrate is held substantially upright on the holder according to any one of items 1 to 4.

  The present invention has the following effects.

  In the preceding paragraph 1, since the first blade portion and the second blade portion are spaced apart from each other in the circumferential direction of the holding body, there is a corner between the upper end surface of the second blade portion and the outer end surface of the first blade portion. do not do. Therefore, it is possible to make it difficult for the liquid such as the cleaning liquid to remain on the upper end surface of the second blade portion, thereby shortening the drying time of the cylindrical body.

  In the preceding item 2, the first blade portion extends downward from a height position above the height position of the receiving surface to at least a height position equivalent to the receiving surface, so that the cylindrical body in the receiving portion of the holding body The accuracy of the receiving position can be improved.

  In the preceding item 3, since the portion on the axial line side of the upper end surface of the second blade portion is located at a lower position than the receiving surface, the liquid such as the cleaning liquid remaining on the portion is left. Can be prevented from flowing onto the receiving surface. Thereby, adhesion of the liquid to the lower end vicinity and the lower end of the inner peripheral surface of the cylindrical body can be suppressed, and the drying time of the cylindrical body can be reliably shortened.

  In the preceding item 4, when the receiving surface of the second blade portion of the receiving portion of the holding body is worn, by separating the receiving portion side portion of the holding body main body portion and the upper portion thereof, among the entire holding body, It is possible to replace the receiving portion integrally having the receiving portion side portion with a new one. Therefore, the running cost of the holding body can be reduced.

  In the preceding item 5, when producing the photosensitive drum, at least the effect of the preceding item 1 among the effects of the preceding items 1 to 4 can be achieved.

FIG. 1 is a plan view (top) and a front view (bottom) of a holding body according to the first embodiment of the present invention. FIG. 2 is a perspective view of the holder. FIG. 3 is a perspective view of a state in which the cylindrical body is held by the holding body. FIG. 4 is a partially cutaway front view showing the holding body fixed to a pallet. FIG. 5 is a perspective view of a holding body according to the second embodiment of the present invention. FIG. 6 is a perspective view of a state in which the cylindrical body is held by the holding body. FIG. 7 is an exploded perspective view of the holder. FIG. 8 is a perspective view of a holding body according to the third embodiment of the present invention. FIG. 9 is a perspective view of a state in which the cylindrical body is held by the holding body. FIG. 10 is an exploded perspective view of the holder. FIG. 11 is a perspective view of a holding body according to the fourth embodiment of the present invention. It is the top view (upper) and front view (lower) of the conventional holding body.

  Next, several embodiments of the present invention will be described below with reference to the drawings.

  1-4 is a figure explaining the holding body which concerns on 1st Embodiment of this invention.

  The holding body 1 according to the first embodiment includes a cylindrical body (shown by a two-dot chain line) 30 as a non-holding body held by the holding body 1 when the cylindrical body 30 is transported, stored, washed, dried, and the like. It is held upright.

  The cylindrical body 30 is, for example, a photosensitive drum base for an electrophotographic apparatus, and the shape thereof is a circular tube in detail. When the cylindrical body 30 is a photosensitive drum substrate, the photosensitive drum substrate is sequentially washed and dried, and then a predetermined layer such as a photosensitive layer is formed on the outer peripheral surface of the substrate to obtain a photosensitive drum. It is done.

  The outer shape and thickness of the cylindrical body 30 are constant in the axial direction of the cylindrical body 30. The outer diameter, thickness, and length of the cylindrical body 30 are not limited, respectively. For example, the outer diameter is 10 to 100 mm, the thickness is 0.1 to 5.0 mm, and the length is 50 to 500 mm. It is. The material of the cylindrical body 30 is not limited and is, for example, a metal such as aluminum (including its alloy).

  As shown in FIG. 4, the holding body 1 is used by being protruded and fixed on a pallet 20 as a fixed body to which the holding body 1 is fixed, and the axis P direction of the holding body 1 is vertically It matches the direction.

  As shown in FIGS. 2 and 3, the holding body 1 includes a holding body main body portion 2 and a base-like receiving portion 10.

  The holding body main body 2 is inserted and arranged from the lower end opening 33 of the cylindrical body 30 into the inside 31 of the cylindrical body 30, and is provided upright with respect to the receiving portion 10.

  The receiving portion 10 is formed to have a larger diameter than the holding body main body portion 2 and includes a receiving surface 11 that receives a lower end surface 32 as a lower end of the cylindrical body 30 in contact with the lower end surface 32. In the first embodiment, the receiving portion 10 is formed integrally with the lower end portion of the holding body main body portion 2.

  The holding body 1 is made of metal or synthetic resin, for example. As the metal, aluminum (including its alloy), stainless steel, or the like is used. Although the synthetic resin is not limited, it is desirable to use a synthetic resin having excellent heat resistance and chemical resistance. Specifically, polytetrafluoroethylene resin (PTFE resin), hard fluororubber, etc. Fluorine resin, polyamide resin, polyphenylene sulfide resin (PPS resin) and the like can be used. If the holder body 2 and the receiving part 10 are formed separately, the material of the holder body 2 and the material of the receiver 10 may be the same or different. .

  The diameter (thickness) of the holding body main body 2 is not limited as long as the holding body main body 2 can be arranged in the inside 31 of the cylindrical body 30. It is desirable to be -98%. The length of the holder body 2 is not limited, but is preferably 20% or more with respect to the length of the cylindrical body 30. By setting the diameter and length of the holding body main body 2 within such ranges, the cylindrical body 30 can be reliably held upright. The upper limit of the desirable length of the holding body main body 2 is not limited, and is 80% of the length of the cylindrical body 30, for example.

  The holding body main body 2 protrudes radially outward with respect to the axis P of the holding body 1 and extends continuously downward from the upper end position of the holding body 1 to the lower end position of the holding body 1. A plate-like blade portion 5 (referred to as “first blade portion 5” for convenience) is provided. The dimensions and shapes of the plurality of first blade portions 5 are the same.

  The plurality of first blade portions 5 are integrally connected to each other at the position of the axis P of the holding body 1, and are arranged substantially evenly in the circumferential direction of the holding body 1 as shown in FIG. Therefore, the angle between the first blade portions 5 and 5 in the plan view of the holding body 1 is about 90 °.

  In this 1st Embodiment, the number of the 1st blade | wing part 5 is four sheets, and the cross-sectional shape of these 1st blade | wing parts 5 is a substantially cross shape. In the present invention, the number of the first blade portions 5 is not limited to four, but is three, for example, and the cross-sectional shape of these first blade portions 5 is substantially a sagittal shape. There may be.

  As shown in FIG. 2, the upper end portion of the holding body main body 2 is formed in a locally tapered shape so that the holding body main body 2 can be easily inserted into the inside 31 from the lower end opening 33 of the cylindrical body 30. It has become. The taper angle θ of the upper end portion is not limited, but is particularly preferably 30 ° to 120 °.

  The diameter (thickness) of the receiving portion 10 is not limited as long as it can receive the lower end surface 32 of the cylindrical body 30, and is set larger than the outer diameter of the cylindrical body 30.

  The receiving portion 10 includes a columnar shaft portion 12 formed coaxially with the axis P of the holding body 1, and further radially outward from the outer peripheral surface of the shaft portion 12 with respect to the axis P of the holding body 1. Are provided with a plurality of blade portions 15 (which are referred to as “second blade portions 15” for convenience of description) that extend straight in the direction of the axis P of the holding body 1. The plurality of second blade portions 15 have the same size and shape. The second blade portion 15 protrudes outward in the radial direction from the first blade portion 5.

  The lower end surface of the receiving portion 10 is composed of the lower end surfaces of the plurality of second blade portions 15, and the lower end portion of the shaft portion 12 protrudes slightly below the lower end surface of the receiving portion 10. As a result, a positioning protrusion 13 is formed at the center of the lower end surface of the receiving portion 10.

  The plurality of second blade portions 15 are integrally formed on the outer peripheral surface of the shaft portion 12, and are arranged substantially evenly in the circumferential direction of the holding body 1 as shown in FIG. Therefore, in the plan view of the holding body 1, the angle between the second blade portions 15, 15 is about 90 °.

  The upper end surface 16 of the second blade portion 15 includes the receiving surface 11 described above, that is, the receiving surface 11 is constituted by a part of the upper end surface 16 of the second blade portion 15.

  In the first embodiment, the number of the second blade portions 15 is the same as that of the first blade portion 5 (that is, four), and the cross-sectional shape of these second blade portions 15 is the cross-section of the first blade portion 5. The shape is the same (that is, substantially cross-shaped). In the present invention, the number of the second blade portions 15 is not limited to four, but is three, for example, and the cross-sectional shape of these second blade portions 15 is substantially a sagittal shape. There may be.

  And in this 1st Embodiment, the 1st blade | wing part 5 and the 2nd blade | wing part 15 are spaced apart in the circumferential direction of the holding body 1, and if it explains in full detail, as shown in FIG. The first blade portion 5 and the second blade portion 15 are separated from each other in the circumferential direction of the holding body 1 so that the first blade portion 5 is disposed one by one between the second blade portions 15 and 15 in plan view. . The angle between the 1st blade | wing part 5 and the 2nd blade | wing part 15 in planar view of the holding body 1 is about 45 degrees.

  Here, as shown in FIG. 1 (below), the first blade portion 5 moves downward from the upper end position of the holding body 1 to the lower end position of the holding body 1 (that is, the lower end position of the receiving portion 10) as described above. Accordingly, the first blade portion 5 has a height equivalent to the receiving surface 11 in a downward direction from a height position higher than the height position of the receiving surface 11 of the second blade portion 15. It passes through the position and continuously extends to the height position of the lower end surface of the second blade portion 15.

  The upper end surface 16 of the second blade portion 15 is formed in a flat shape, and is disposed horizontally when the cylindrical body 30 is held.

  Further, a notch portion 17 is locally provided at a portion of the upper end surface 16 of the second blade portion 15 on the axis P side (shaft portion 12 side) with respect to the receiving surface 11, thereby receiving the portion. It is formed to be at a height position lower than the surface 11.

  A reference numeral “25” in FIG. 4 is a fixing bolt as a fixing means for fixing the holding body 1 on the pallet 20. The fixing bolt 25 is composed of, for example, a hexagon socket head bolt. The holding body 1 is fixed on the pallet 20 so as to protrude upward by the fixing bolt 25.

  That is, a screw hole 8 that extends upward from the lower end surface and is screwed into the fixing bolt 25 is formed on the lower end surface of the shaft portion 12 of the receiving portion 10 of the holding body 1. The pallet 20 is horizontally arranged, and the pallet 20 is provided with an insertion hole 22 for a fixing bolt 25 having a circular cross section. Then, the fixing bolt 25 inserted through the insertion hole 22 from below is screwed into the screw hole 8, whereby the holding body 1 is fixed on the pallet 20 in an upward projecting manner. In this state, the holding body 1 is used.

  In such a fixed state of the holding body 1, the positioning protrusion 13 of the holding body 1 is detachably fitted in a positioning recess 21 provided on the upper surface 20 a of the pallet 20. Therefore, when the holding body 1 is fixed on the pallet 20 with the fixing bolt 25, the fixing position of the holding body 1 on the pallet 20 can be determined by fitting the protruding portion 13 into the recess 21. Therefore, the fixing work of the holding body 1 on the pallet 20 with the fixing bolt 25 can be easily performed.

  When the cylindrical body 30 is held by the holding body 1, the cylindrical body 30 is held at the upper end portion of the inner peripheral surface of the cylindrical body 30 by a chuck portion (not shown) of the chuck device inserted from the upper end opening. The Next, as shown in FIG. 2, by operating the chuck device, the cylindrical body 30 is lowered so that the holding body main body 2 of the holding body 1 is inserted into the inside 31 from the lower end opening 33 of the cylindrical body 30. When the lower end surface 32 of the cylindrical body 30 comes into contact with the receiving surfaces 11 of the plurality of second blade portions 15 of the holding body 1, the lowering operation of the cylindrical body 30 by the chuck device is stopped. And the chuck | zipper of the cylindrical body 30 by the chuck | zipper part of a chuck | zipper apparatus is cancelled | released. As a result, as shown in FIGS. 1, 3, and 4, the holding body main body 2 is disposed in the inside 31 of the cylindrical body 30, and the receiving surface 11 of the second blade 15 has the lower end surface 32 of the cylindrical body 30. receive. As a result, the cylindrical body 30 is held upright on the holding body 1. In this state, the cylindrical body 30 is transported, stored, washed, dried, and the like.

  The holder 1 of the first embodiment has the following advantages.

  The plurality of first blade portions 5 of the holding body main body 2 of the holding body 1 project radially outward with respect to the axis P of the holding body 1 and extend in the axis P direction. The contact area between the inner peripheral surface of the cylindrical body 30 and the holding body main body 2 can be reduced in a state where the holding body main body 2 is inserted and arranged at 31 (ie, the cylindrical body 30 is held by the holding body 1). Thus, scratches on the inner peripheral surface of the cylindrical body 30 due to contact with the holding body main body 2 can be suppressed, and a fluid such as a cleaning liquid and drying air (eg, hot air, hot air) is contained in the inside 31 of the cylindrical body 30. It is easy to flow downward as the axis P direction of the cylindrical body 30.

  Further, the plurality of second blade portions 15 of the receiving portion 10 of the holding body 1 project radially outward from the axis P of the holding body 1 and extend in the axis P direction. The fluid flowing in the lower direction of the cylinder 31 can be easily discharged from the lower end opening 33 of the cylindrical body 30, so that the cylindrical body 30 can be cleaned and dried satisfactorily.

  Further, since the upper end surface 16 of the second blade portion 15 includes the receiving surface 11 that receives the cylindrical body 30, the contact area between the lower end surface 32 of the cylindrical body 30 and the receiving portion 10 can be reduced, and the receiving portion 10. It is possible to suppress scratching of the lower end surface 32 of the cylindrical body 30 due to contact with.

  Furthermore, since the 1st blade | wing part 5 and the 2nd blade | wing part 15 are spaced apart in the circumferential direction of the holding body 1, between the upper end surface 16 of the 2nd blade | wing part 15 and the outer side end surface 6 of the 1st blade | wing part 5. There are no corners. Therefore, it is possible to make it difficult for the cleaning liquid to remain on the upper end surface 16 of the second blade portion 15 after the cylindrical body 30 is cleaned, thereby shortening the drying time of the cylindrical body 30.

  Further, the first blade portion 5 continuously extends straight downward from the upper end position of the holding body 1 to the lower end position of the holding body 1, that is, the first blade portion 5 is higher than the height position of the receiving surface 11. Also, it extends downward from the upper height position to at least a height position equivalent to the receiving surface 11. Thereby, the accuracy of the receiving position of the cylindrical body 30 in the receiving portion 10 of the holding body 1 can be improved. Further, it is possible to reliably prevent the cleaning liquid droplets from dropping from the lower end of the first blade portion 5 onto the upper end surface 16 of the second blade portion 15 after the cylindrical body 30 is cleaned. It is possible to reliably prevent the cleaning liquid from remaining on the upper end surface 16 of the portion 15.

  Further, a portion of the upper end surface 16 of the second blade portion 15 on the axis P side (the shaft portion 12 side) with respect to the receiving surface 11 is lower than the receiving surface 11 by providing a notch portion 17 in the portion. Since it forms so that it may become a position, it can suppress that the washing | cleaning liquid which remained on the said part flows on the receiving surface 11. FIG. Thereby, adhesion of the cleaning liquid to the vicinity of the lower end of the inner peripheral surface of the cylindrical body 30 and the lower end surface 32 after the cleaning of the cylindrical body 30 can be suppressed, and the drying time of the cylindrical body 30 can be reliably shortened. .

  When the cylindrical body 30 is a photosensitive drum substrate, the substrate 1 is washed and dried in a state where the substrate is held upright on the holding body 1, so that the above-mentioned of the holding body 1 is produced when the photosensitive drum is manufactured. Advantages can be demonstrated.

  5-7 is a figure explaining the holding body 101 which concerns on 2nd Embodiment of this invention. In these drawings, elements having the same action as the elements of the holding body 1 of the first embodiment are given a reference numeral obtained by adding 100 to the reference numerals attached to the elements of the holding body 1 of the first embodiment. Yes. The holding body 101 of the second embodiment will be described below with a focus on differences from the holding body 1 of the first embodiment.

  In the holding body 101 of the second embodiment, as shown in FIG. 7, the holding body main body 102 is at a height position higher than the height position of the receiving surface 111 of the second blade portion 115 of the receiving portion 110. Thus, it is divided into a part 102B on the receiving part 110 side (this is referred to as “lower main body part 102B”) and an upper part 102A (this is referred to as “upper main body part 102A” for convenience). Then, the upper main body 102A and the lower main body 102B are detachably connected to each other, whereby the holding body main body 102 is configured as shown in FIG.

  As shown in FIG. 7, the first blade portion 105 of the holding body main body portion 102 is divided into a lower body portion 102B and an upper main body portion 102A, whereby the receiving portion 110 side portion 105B ( This is divided into a “lower first blade portion 105B” for convenience of explanation) and an upper portion 105A (referred to as “upper first blade portion 105A” for convenience of explanation).

  The lower main body portion 102B of the holding body main body portion 102 is formed integrally with the receiving portion 110, and therefore the receiving portion 110 has the lower main body portion 102B integrally.

  The receiving part 110 integrally having the lower main body part 102 </ b> B includes a cylindrical shaft part 112 formed coaxially with the axis P of the holding body 101. The upper end of the shaft portion 112 is located at the upper end of the lower main body portion 102B. The lower end portion of the shaft portion 112 protrudes slightly below the lower end surface of the receiving portion 110. As a result, a positioning projection 113 is formed at the center of the lower end surface of the receiving portion 110. The positioning projection 113 is formed by the lower end of the shaft 112 protruding.

  The lower first blade portion 105B protrudes radially outward from the outer peripheral surface of the shaft portion 112 with respect to the axis P of the holding body 101 and extends straight in the direction of the axis P, and is integrated with the outer peripheral surface of the shaft portion 112. Is formed. More specifically, the lower first blade portion 105B is straight downward from the upper end position of the lower main body portion 102B (that is, the upper end position of the shaft portion 112) to the lower end position of the holding body 101 (that is, the lower end position of the receiving portion 110). Accordingly, the lower first blade portion 105B extends from the height position above the receiving surface 111 of the second blade portion 115 to a height position equivalent to the receiving surface 111 downward. And continuously extending to the height position of the lower end surface of the second blade portion 115.

  The plurality of upper first blade portions 105A are integrally connected to each other at the position of the axis P of the holding body 101, as in the first embodiment.

  A fitting protrusion 107 having a circular cross section protruding downward is integrally formed at the center of the lower end surface of the upper main body 102A. Then, the fitting projecting portion 107 is detachably fitted to the inner side 112a of the shaft portion 112 described above from above, so that the upper main body portion 102A and the lower main body portion 102B are detachably connected to each other and the holding body 101. Is configured.

  Thus, in the state where the fitting protrusion 107 is fitted to the inner side 112a of the shaft portion 112 (that is, the state where the upper main body portion 102A and the lower main body portion 102B are connected), as shown in FIG. The positions of the upper first blade portion 105A and the position of the lower first blade portion 105B all coincide with each other in the circumferential direction. Furthermore, the outer end surface 106A of the upper first blade portion 105A and the outer end surface 106B of the lower first blade portion 105B are connected in a flush manner in the axis P direction of the holding body 101.

  As shown in FIG. 7, a screw hole 108 that extends upward from the lower end surface and engages with the fixing bolt 125 is formed in the lower end surface of the fitting projecting portion 107 of the upper main body portion 102 </ b> A. The pallet 20 has an insertion hole 22 for a fixing bolt 125. Then, in a state where the fitting projection 107 is fitted to the inner side 112 a of the shaft portion 112, the fixing bolt 125 inserted from below the insertion hole 22 is screwed into the screw hole 108 of the fitting projection 107. Thus, the holding body 101 is fixed on the pallet 20 so as to protrude upward.

  Furthermore, in such a fixed state of the holding body 101, the positioning protrusion 113 of the holding body 101 is detachably fitted into the positioning recess 21 provided on the upper surface 20a of the pallet 20. Thereby, when the holding body 101 is fixed on the pallet 20, the fixing position of the holding body 101 on the pallet 20 is determined.

  The method for holding the cylindrical body 30 on the holding body 101 is the same as that in the first embodiment.

  The holder 101 of the second embodiment has the following advantages in addition to the advantages of the holder 1 of the first embodiment.

  As shown in FIG. 6, in the state where the cylindrical body 30 is held by the holding body 101, the receiving surface 111 of the second blade portion 115 of the holding body 101 has the lower end surface 32 of the standing cylindrical body 30 as the lower end surface 32. Receiving in contact. By repeatedly holding the cylindrical body 30 by the holding body 101, the receiving surface 111 of the second blade portion 115 may be worn by contact with the lower end surface 32 of the cylindrical body 30 and may be locally recessed.

  When the receiving surface 111 is worn in this way, the fixing bolt 125 and the screw hole 108 of the fitting protrusion 107 are released and the fixing bolt 125 is pulled out, whereby the holding body 101 is removed from the pallet 20. Separate from. Next, the upper main body 102A and the lower main body 102B are separated by extracting the fitting protrusion 107 from the inner side 112a of the shaft 112. By doing so, it is possible to replace only the receiving portion 110 integrally having the lower main body portion 102B with a new one, not the entire holding body 101. Therefore, the running cost of the holding body 101 can be reduced.

  8-10 is a figure explaining the holding body 201 which concerns on 3rd Embodiment of this invention. In these drawings, elements having the same action as the elements of the holding body 1 of the first embodiment are given reference numerals obtained by adding 200 to the reference numerals attached to the elements of the holding body 1 of the first embodiment. Yes. The holding body 201 of the third embodiment will be described below with a focus on differences from the holding bodies 1 and 101 of the first and second embodiments.

  In the holding body 201 according to the third embodiment, as shown in FIG. 10, the holding body main body 2 has a height of the receiving surface 211 of the second blade part 215 of the receiving part 210 as in the second embodiment. It is divided into a lower main body portion 202B that is a portion on the receiving portion 210 side and an upper main body portion 202A that is an upper portion thereof at a height position above the vertical position. The upper body 202A and the lower body 202B are detachably connected to each other, so that the holder body 202 is configured as shown in FIG.

  As shown in FIG. 10, in the first blade portion 205 of the holding body main body 202, the holding body main body 202 is divided into a lower main body 202B and an upper main body 202A, as in the second embodiment. Thus, the lower first blade portion 205B which is a portion on the receiving portion 210 side and the upper first blade portion 205A which is an upper portion thereof are divided.

  The lower main body portion 202B of the holding body main body portion 202 is formed integrally with the receiving portion 210. Therefore, the receiving portion 210 has the lower main body portion 202B integrally.

  The receiving part 210 integrally including the lower main body part 202B includes a cylindrical shaft part 212 formed coaxially with the axis P of the holding body 201, as in the second embodiment. The upper end of the shaft portion 212 is located at the upper end of the lower main body portion 202B. The lower end portion of the shaft portion 212 protrudes slightly below the lower end surface of the receiving portion 210. As a result, a positioning protrusion 213 is formed at the center of the lower end surface of the receiving portion 210, which is a lower end portion of the shaft portion 212 protruding.

  The lower first blade portion 205B protrudes radially outward from the outer peripheral surface of the shaft portion 212 with respect to the axis P of the holding body 201 and extends straight in the direction of the axis P, and is integrated with the outer peripheral surface of the shaft portion 212. Is formed. More specifically, the lower first blade portion 205B is straight downward from the upper end position of the lower main body portion 202B (that is, the upper end position of the shaft portion 212) to the lower end position of the holding body 201 (that is, the lower end position of the receiving portion 210). Accordingly, the lower first blade portion 205B is located at a height position equivalent to the receiving surface 211 in a downward direction from a height position higher than the height position of the receiving surface 511 of the second blade portion 215. And continuously extending to the height position of the lower end surface of the second blade portion 215.

  Further, the upper end portion 206Ba of the outer end surface 206B of the lower first blade portion 205B is formed on an inclined surface that is inclined radially outward with respect to the downward direction.

  The upper main body portion 202A has a lower portion than the upper portion 202Aa having a smaller diameter than the upper portion 202Aa. More specifically, the entire portion below the upper portion 202Aa has a smaller diameter than the upper portion 202Aa. ing. Furthermore, the outer diameter of the upper body portion 202A at the lower end position of the upper first blade portion 205A (that is, the outer diameter of the lower end of the upper body portion 202A) and the outer diameter of the lower body portion 202B at the upper end position of the lower first blade portion 205B ( That is, the outer diameter of the upper end of the lower main body 202B is set equal.

  The plurality of upper first blade portions 205A are integrally connected to each other at the position of the axis P of the holding body 201, as in the first embodiment.

  A fitting protrusion 207 having a circular cross section protruding downward is integrally formed at the center of the lower end surface of the upper main body 202A. And the fitting part 207 is detachably fitted to the inner side 212a of the shaft part 212 from above, so that the upper body part 202A and the lower body part 202B are detachably connected to each other and the holding body 201 is connected. Is configured.

  Thus, in the state where the fitting protrusion 207 is fitted to the inner side 212a of the shaft portion 212 (that is, the upper main body portion 202A and the lower main body portion 202B are connected), as shown in FIG. The position of the lower first blade portion 205B and the position of the upper first blade portion 205A all coincide with each other in the circumferential direction. Further, the lower end position of the outer end surface 206A of the upper first blade portion 205A in the radial outward direction of the holding body 201 and the upper end position of the outer end surface 206B of the lower first blade portion 205B all coincide.

  As shown in FIG. 10, a screw hole 208 that extends upward from the lower end surface and engages with the fixing bolt 225 is formed on the lower end surface of the fitting protrusion 207 of the upper main body 202A. The pallet 20 has a fixing bolt 225 insertion hole 22 formed therein. Then, in a state where the fitting protrusion 207 is fitted to the inner side 212 a of the shaft portion 212, the fixing bolt 225 inserted through the insertion hole 22 from below is screwed into the screw hole 208 of the fitting protrusion 207. Thus, the holding body 201 is fixed on the pallet 20 so as to protrude upward.

  Further, in such a fixed state of the holding body 201, the positioning protrusion 213 of the holding body 201 is detachably fitted into the positioning recess 21 provided on the upper surface 20 a of the pallet 20. Thereby, when fixing the holding body 201 on the pallet 20, the fixing position of the holding body 201 on the pallet 20 is determined.

  The method for holding the cylindrical body 30 on the holding body 201 is the same as that in the first embodiment.

  The holder 201 of the third embodiment has the following advantages in addition to the advantages of the holders 1 and 101 of the first and second embodiments.

  In order to hold the cylindrical body 30 on the holding body 201, when inserting the holding body main body 202 of the holding body 201 into the inside 31 from the lower end opening 33 of the cylindrical body 30 held by the chuck portion of the chuck device, the cylinder The axis of the body 30 may not be coincident with the axis P of the holding body 201 and may be slightly inclined with respect to the axis P of the holding body 201. In this case, the lower end of the cylindrical body 30 (specifically, the lower side of the cylindrical body 30 will be described in detail) while the cylindrical body 30 in which the upper body 202Aa of the upper body 202A of the holding body main body 202 is inserted into the inside 31 of the cylindrical body 30 is lowered. There is a possibility that the inner peripheral edge of the end surface 32 may come into contact with the intermediate portion in the vertical direction of the holder body 2.

  However, as described above, the upper body portion 202A of the holding body body portion 202 is formed such that the lower portion of the upper body 202Aa is smaller in diameter than the upper portion 202Aa. The peripheral edge) can be prevented from contacting the intermediate portion in the vertical direction of the holder body 202. Thereby, the bottom end of the cylindrical body 30 and the wear of the holding body main body 202 can be suppressed.

  Furthermore, since the upper end portion 206Ba of the outer end surface 206B of the lower first blade portion 205B is formed as an inclined surface, the lower end of the cylindrical body 30 (if the intermediate body 31 is inserted into the interior 31 of the cylindrical body 30) Even when the inner peripheral edge of the lower end surface 32 contacts the upper end portion 206Ba of the outer end surface 206B of the lower first blade portion 205B, the lower end of the cylindrical body 30 can be guided downward by the inclined surface of the upper end portion 206Ba. . Therefore, the holding operation of the cylindrical body 30 to the holding body 201 can be performed smoothly.

  In addition, when the upper end portion 206Ba of the outer end face 206B of the lower first blade portion 205B is worn by contact with the lower end of the cylindrical body 30, the upper main body portion 202A and the lower main body portion 202B are separated, thereby lowering the lower main body portion. Only the receiving part 210 integrally having 202B can be replaced with a new one. Therefore, the running cost of the holder 201 can be further reduced.

  FIG. 11 is a view for explaining a holding body 301 according to the fourth embodiment of the present invention. In these drawings, elements having the same action as the elements of the holding body 1 of the first embodiment are given the reference numerals obtained by adding 300 to the reference numerals attached to the elements of the holding body 1 of the first embodiment. Yes. The holder 301 of the fourth embodiment will be described below with a focus on the differences from the holders 1, 101, 201 of the first to third embodiments.

  The holding body 301 of the fourth embodiment has basically the same configuration as the holding body 201 of the third embodiment, but in the fourth embodiment, the holding body main body portion in the circumferential direction of the holding body 301 The position of the lower first blade portion 305B of the lower main body portion 302B of 302 and the position of the upper first blade portion 305A of the upper main body portion 302A are all shifted.

  More specifically, the lower first blade portion 305B and the upper first blade portion 205A are arranged so that one upper first blade portion 305A is disposed between the lower first blade portions 305B and 305B in a plan view of the holding body 301. Are spaced apart in the circumferential direction of the holder 301. In the plan view of the holding body 301, the angle between the upper first blade portion 305A and the lower first blade portion 305B is about 45 °. Accordingly, the position of the upper first blade portion 305 </ b> A and the position of the second blade portion 315 in the circumferential direction of the holding body 301 all coincide. Furthermore, the upper first blade portion 305 </ b> A and the second blade portion 315 are separated from each other in the axis P direction of the holding body 301.

  The other structure of the holder 301 of the fourth embodiment is the same as that of the holder 201 of the third embodiment.

  Although several embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  The cylindrical body held by the holding body according to the present invention is particularly preferably a photosensitive drum base, but is not limited to this, and may be other cylindrical members.

  Further, the holding body according to the present invention may be one in which two or more technical features selected from all the technical features applied to the holding body of the plurality of embodiments described above are applied. good.

  INDUSTRIAL APPLICABILITY The present invention can be used for a cylindrical body holder used for transporting, storing, cleaning, drying, and the like of a cylindrical body such as a photosensitive drum substrate, and a method for manufacturing a photosensitive drum.

1: Holding body 2: Holding body body part 5: First blade part 10: Receiving part 11: Receiving surface 15: Second blade part 16: Upper end surface P of second blade part P: Axis 30 of holding body: Cylindrical body 32 : Bottom end of cylinder

Claims (5)

A holding body main body inserted into the inside of the cylindrical body from the lower end opening of the cylindrical body,
A receiving portion having a receiving surface that receives the lower end of the cylindrical body in contact with the lower end, and
The holder body includes a plurality of first blade portions that project radially outward with respect to an axial line and extend in the axial direction;
The receiving portion includes a plurality of second blade portions projecting radially outward from the axis and extending in the axial direction, and an upper end surface of the second blade portion includes the receiving surface. ,
A cylindrical holding body in which the first blade portion and the second blade portion are spaced apart from each other in the circumferential direction of the holding body.   2. The cylindrical body holder according to claim 1, wherein the first blade portion extends downward from a height position higher than a height position of the receiving surface to at least a height position equivalent to the receiving surface.   3. The cylindrical body holding according to claim 1, wherein a portion of the upper end surface of the second blade portion that is closer to the axis line than the receiving surface is positioned at a lower height than the receiving surface. body. The holding body main body is divided into a portion on the receiving portion side and a portion on the upper side thereof, and both the portions are detachably connected,
The cylindrical holder according to any one of claims 1 to 3, wherein the receiving portion integrally has a portion on the receiving portion side.   A method for producing a photosensitive drum, wherein the photosensitive drum substrate is washed and dried in a state where the cylindrical photosensitive drum substrate is held substantially upright on the holder according to claim 1.

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