JP4510435B2 - Packing member and packing method using packing member - Google Patents

Description

  The present invention relates to a packing member for packing an object to be packed and a packing method for packing an object to be packed using the packing member.

Conventionally, as this type of packing member, as described in the following publications (for example, FIG. 1 of Patent Document 1 and FIG. 1 of Patent Document 2), a medium storage unit that stores a medium (Patent Document) 1, reference numeral 37, and reference 3 in Patent Document 2), and a check valve that restricts a medium that flows back from the medium storage unit by allowing the medium toward the medium storage unit to pass therethrough (reference numeral 32 in Patent Document 1). In Patent Document 2, there is a reference 4) and an introduction part (reference 34 in Patent Document 1 and reference 2 in Patent Document 2) for introducing the medium from the outside of the packing member into the medium storage part via a check valve. In addition, a packing member (reference numeral 30 in Patent Document 1 and reference numeral 1 in Patent Document 2) that introduces a medium into a medium storage section through the introduction portion and the check valve is known. In these conventional examples, the longitudinal direction of the introduction portion is arranged in a direction intersecting with the longitudinal direction of the medium storage portion.
US Pat. No. 5,427,830 Japanese Utility Model Publication No. 1-164142

  However, in the above-described conventional technology, the medium storage portion is substantially perpendicular to the direction intersecting the longitudinal direction of the medium storage portion and the longitudinal direction of the introduction portion, that is, the medium introduction direction. However, there is a possibility that the medium cannot be efficiently fed. The present invention has been made in view of the problems to solve the above problems.

  An object of the present invention is to provide a packing member and a packing method capable of reliably and efficiently introducing a medium into a medium storage unit.

  Another object of the present invention is to provide a packing member and a packing method that can reliably and efficiently introduce a medium into the medium storage unit and can be downsized.

  Another object of the present invention is to provide a packing member and a packing method capable of downsizing an injection device for introducing a medium into a medium storage unit.

  Another object of the present invention is to provide a packing member and a packing method in which the medium does not leak to the outside of the packing member even if the medium stored in the packing member flows back through the reverse support valve due to environmental changes. There is to do.

A typical configuration of the present invention for achieving the above object is a packing member for packing an object to be packed, in which a medium is stored, a plurality of medium storage units arranged side by side,
A check valve that restricts the medium that flows back from the medium storage unit by allowing the medium toward the medium storage unit to pass therethrough, and the check valve provided in each of the plurality of medium storage units, and the plurality of media In order to inflate the storage unit, a plurality of media are introduced independently to the plurality of medium storage units, each of which introduces a medium from the outside of the packing member to the medium storage unit via the check valve. of the introduction portion, said their respective vignetting set to a plurality of end of the introduction, a inlet for introducing a medium, a width smaller than the width of the connecting portion between the inlet portion and the media housing section And a packing member having an inlet provided in contact with the adjacent inlet .

In addition, a typical packing method of the present invention for achieving the above object is a packing member for packing an object to be packed, a medium storing a plurality of medium storage units arranged side by side, and the medium A check valve that restricts a medium that flows back from the medium storage unit by allowing a medium that is directed to the storage unit to pass therethrough, the check valve provided in each of the plurality of medium storage units, and the plurality of medium storage units In order to inflate the medium, the medium is introduced into the medium container from the outside via the check valve, and a plurality of introductions provided independently for the plurality of medium containers are provided. and parts and their respective vignetting set at one end of said plurality of introduction, a inlet for introducing a medium, has a width less than the width of the connecting portion between the inlet portion and the media housing section , it included with, an injection port provided in contact with the inlet of the next Using said member A packing method for packing an object to be packed, the said packing member accommodating the object to be packed, after which the injection device media to the medium accommodating portion through the Symbol introducing portion from said inlet It is a packing method to inject by.

As described above, according to the present invention, it is possible to reduce the size of the injection apparatus for injecting a medium at a time to a plurality of medium storage portions of the packing member.

  Embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
(Structure of packing material)
Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the sheet of the packaging member S <b> 1 according to the present invention is configured by stacking and thermally welding two plastic films 1 and plastic films 2 that are flexible members. . The heat-welded regions are the welded portions 6, 8, 9, and 10. The packing member S1 is provided with a plurality of medium storage portions 3 that can store air as a medium. The medium storage unit 3 is configured by partitioning the film 1 and the film 2 by heat welding with the welding unit 10. The medium storage unit 3 has a long side as shown in FIG. In addition, the film 1 and the film 2 of this Embodiment are the flexible members of a 3 layer structure. That is, it has a sandwich structure in which a nylon layer is sandwiched between a polyethylene layer and a polypropylene layer. Mainly, the nylon layer has a characteristic that the medium does not easily permeate, and the polyethylene layer and the polypropylene layer have a characteristic of good weldability with respect to heat welding.

  A check valve 4 is provided on one end side in the longitudinal direction of the medium storage unit 3. The check valve 4 allows air to pass in the direction in which air is introduced into the medium storage unit 3. Then, after the air is introduced into the medium storage unit, as shown in FIG. 2, the pressure of the air inside the medium storage unit 3 is used to prevent the backflow of the introduced air. The detailed configuration of the check valve 4 is as shown in FIGS. The check valve 4 is manufactured by the following procedure. An upper check valve 4a is welded to the film 1 at the welded portion 1a, and a lower check valve 4b and a seal member 4c are welded to the film 2 at the welded portion 2a. And as shown in FIG. 1, the film 1 and the film 2 are heat-welded in the welding parts 6, 8, 9, and 10. As shown in FIG. The seal member 4c is made of a material that does not melt even at a temperature at which the welded portion 8 is thermally welded. The welded portions 9 and 10 are provided substantially in parallel along the longitudinal direction of the medium storage portion 3. The welded portions 6 and 8 are provided so as to extend in a direction intersecting with the longitudinal direction of the medium storage portion 3, and the welded portion 6 is located on the other end side in the longitudinal direction. As shown in FIG. 42, one end side of the upper check valve 4a and the lower check valve 4b extends from the welded portion 1a and the welded portion 2a to the upstream side of the air introduction direction. Located at the distance of the dimension. If A dimension is taken large, workability at the time of welding upper check valve 4a and lower check valve 4b to film 1 and film 2 will be good. However, when the dimension A is larger than 4.5 mm, when the air is allowed to pass through the check valve 4, one end of the upper check valve 4 a and the lower check valve 4 b is blocked in the air passage, Experiments have shown that air is fed into the media compartment. Therefore, in the present embodiment, the dimension A is set to 2 ± 1.5 mm in consideration of the tolerance of the welding position.

  And in the welding part 8, as shown in FIG. 30, the 8b part and the 8c part are heat-welded, but the 8a part corresponding to the position of the sealing member 4c is not welded. Therefore, when air is introduced, air can be introduced as shown by the arrows. Further, the longitudinal direction of the medium storage unit 3 and the air passage direction of the check valve 4 substantially coincide with each other, and air is efficiently introduced into the medium storage unit 3.

  Further, in order to inflate the medium storage unit 3 on one end side in the longitudinal direction of the medium storage unit 3, the medium is introduced from the outside of the packing member S1 to the plurality of medium storage units 3 via the check valves 4. The introduction part 5 is provided. Furthermore, an inlet 11 for injecting air is provided on one end side of the introduction part 5 with respect to the introduction part 5. The introduction part 5 is also configured by thermally welding the film 1 and the film 2. The heat-welded region is the weld portion 7. Here, as shown in FIG. 6, the width W1 of the injection port 11 is the same as that of the check valves 4 (4a to 4g) provided on the downstream side in the introduction direction of the plurality of introduction portions 5 (5a to 5g). It is narrower than the width W2 of the connecting portion. Further, the plurality of inlets 11 (11a to 11g) are provided adjacent to each other. Therefore, the injection part (not shown) of the injection device for introducing air from the injection port 11 at a time can be reduced. In the check valve 4, the medium can be introduced from the inlet 11 in a direction substantially coincident with the passing direction in which the medium passes toward the medium storage unit 3, and air is efficiently introduced into the medium storage unit 3. It is the composition which becomes. Further, due to the above-described configuration, the welded portion 7 has a shape that is inclined from the connecting portion with the check valve 4 toward the injection port 11 along the longitudinal direction of the medium storage portion 3. Details are shown in FIG. The introduction portions 5a to 5c and 5e to 5g lead the air in a direction inclined by a predetermined angle B (Ba to Bg) with respect to the longitudinal direction of the medium storage portion 3, and the first introduction passages 5a1 to 5c1 and 5e1 to 5g1 respectively. Further, air is guided in the longitudinal direction of the medium storage unit 3 between each check valve (4a to 4c and 4e to 4g) and the first introduction passage (5a1 to 5c1, 5e1 to 5g1). , Second introduction passages 5a2 to 5c2 and 5e2 to 5g2, respectively. The second introduction passages (5a2 to 5c2, 5e2 to 5g2) pass the air that has passed through the first introduction passages (5a1 to 5c1, 5e1 to 5g1), and check valves (4a to 4c and 4e to 4g). It leads to. With the above-described configuration, the air guided at an angle B (Ba to Bg) with respect to the longitudinal direction of the medium storage unit 3 is transferred to the medium by the second introduction passages (5a2 to 5c2, 5e2 to 5g2). The air can be guided to the check valves (4a to 4c and 4e to 4g) by changing the direction in the substantially same direction as the longitudinal direction of the storage unit 3. Therefore, since the longitudinal direction of the medium storage unit 3 and the air introduction direction D to the medium storage unit 3 coincide, air can be efficiently and reliably introduced into the medium storage unit 3.

  In addition, the first introduction passage 5d guides air from the injection port 11d in the substantially same direction as the longitudinal direction of the medium storage unit 3.

  The length F of the second introduction passages (5a2 to 5c2, 5e2 to 5g2) is longer as the angle B (Ba to Bg) is larger. That is, as the angle B (Ba to Bg) is larger, the first introduction passages (5a1 to 5c1 and 5e1 to 5g1) guide air at a larger angle with respect to the longitudinal direction of the medium storage unit 3. Therefore, in order to make the air introduction direction D coincide with the longitudinal direction of the medium storage portion 3, the length F of the second introduction passage 5b is secured to a predetermined distance, and the direction in which air is guided is substantially the same as the introduction direction D. It is desirable to change so that Specifically, the length of the second introduction passage 5b is in a relationship of Fa> Fb> Fc and Fg> Ff> Fe. Here, in the present embodiment, Fa = Fg = 11 ± 2 mm, Fb = Ff = 8 ± 2 mm, and Fc = Fe = 1 ± 1 mm. Further, angle Ba = angle Bg = 70 ° to 90 °, angle Bb = angle Bf = 60 ° to 70 °, and angle Bc = angle Be = 40 ° to 60 °.

  Further, pilot holes G1 and G2 are provided in the packing material S1. The pilot holes G1 and G2 are used for holding the packing material S1 in the automatic machine when packing an object to be packed by the automatic machine. By providing in the vicinity of the injection port 11 as in the present embodiment, an injection device (nozzle or the like) for injecting air into the injection port 11 can be accurately inserted. With the above-described configuration, areas J1 and J2 as shown in FIG. 41 can be secured, so that this pilot hole can be provided.

  Note that the center line described in FIG. 41 is a line that passes through the center position in the width direction of the introduction unit 5 or the medium storage unit 3.

  In addition, the region 48 is used to prevent the air flowing back from the medium storage unit 3 to the introduction unit 5 through the check valve 4 from leaking from the introduction unit 5 to the outside of the packaging member S1. It is a sealing region for sealing the introduction part 5 provided on the upstream side of the check valve 4 in the introduction direction toward the check valve 4. The region 48 is sealed by applying heat by a dedicated heat welding device (not shown) after storing air in the medium storage unit 3.

  Further, a region 3b having a narrow width in the width direction intersecting with the longitudinal direction of the medium storage unit is provided at a predetermined position in the longitudinal direction of the medium storage unit 3. The narrow area 3b is provided in order to weaken the pressure applied to the object to be packed after the medium is stored in the medium storage unit 3. That is, the narrow region 3b is provided at a position corresponding to a protrusion protruding from the packaged object, or a position where the packaged object may be deformed to damage the packaged object. As shown in FIG. 6, the width W4 of the narrow region 3b is narrower than the width W3 of the region 3a other than the narrow region 3b. That is, the cross-sectional area of the narrow region 3b is smaller than the cross-sectional area of the region 3a other than the narrow region 3b. Moreover, the narrow area | region 3b can be formed by enlarging the width | variety of the welding part 23 rather than the welding part 10, as shown in FIG. The welding part 23 is also formed by applying heat by a dedicated heat welding device (not shown).

  The configuration of the packaging member is summarized as follows.

  In the packing members S and S1 for packing the objects to be packed, the medium storage unit 3 that stores the medium and the check valve 4 that restricts the medium that flows back from the medium storage unit 3 through the medium toward the medium storage unit 3. In order to inflate the medium storage unit 3, the introduction unit 5 for introducing the medium from the outside of the packing member 1 to the medium storage unit 3 through the check valve 4, and the medium storage unit through the check valve 4 In order to prevent the medium flowing back from 3 to the introduction part 5 from leaking out of the packaging member S1 from the introduction part 5, the upstream side of the check valve 4 in the introduction direction from the introduction part 5 to the check valve 4 And a sealing region 48 for sealing the introduction portion 5, which is sealed after the medium is stored in the medium storage portion 3. Members S and S1.

  The medium storage unit 3 has an elongated shape, and the longitudinal direction of the medium storage unit 3 substantially coincides with the medium passing direction in the check valve 4.

  The introduction part 5 has an inlet 11 for introducing the medium from the outside of the packing members S and S1 at the upstream end in the introduction direction, and the direction of introduction of the medium at the inlet 11 is the check valve 4. This substantially coincides with the passing direction in which the medium passes toward the medium storage unit 3.

  Further, a plurality of medium storage units 3 are arranged side by side, check valves 4 are respectively provided for the plurality of medium storage units 3, and the introduction unit 5 also includes the plurality of medium storage units. Each part 3 is provided independently.

  In addition, the sealing region 48 is provided at a position where the volumes of the medium that flows back from the medium storage unit 3 can be stored in the introduction unit 5 are approximately equal.

  Each of the plurality of introducing portions 5 has an inlet 11 for introducing the medium from the outside of the packing member at the upstream end in the medium introducing direction. The width W1 of the inlet is narrower than the width W2 of the connection portion with the check valve 4 provided on the downstream side in the introduction direction of the plurality of introduction portions 5. Since the width W1 of the injection port 11 is narrower than the width W2 of the connecting portion, and the injection ports 11 are provided adjacent to each other, an injection device (not shown) for introducing air from the injection port 11 is provided. There exists an effect which can be reduced in size. Here, the width W1 of the injection port 11 is 10 to 15 mm, and the width W2 of the connecting portion is 25 to 30 mm.

  Further, in order to weaken the pressure applied to the object to be packed after the medium is stored in the medium storage unit 3, a region 3 b having a narrow width in the width direction intersecting with the longitudinal direction of the medium storage unit 3 is formed in the longitudinal direction of the medium storage unit 3. Provided at predetermined positions.

  Generally, the packaging member S1 having the plurality of medium storage units 3, the check valve 4, and the introduction unit 5 is first cut from the long roll sheet S. And the said sheet | seat is cut | disconnected and processed according to a to-be-packaged object, and packing suitable for the purpose of the to-be-packaged object is carried out. The packing method is shown below.

(Packing method using packing materials)
A packing method using the packing member S with a process cartridge that can be attached to and detached from the electrophotographic image forming apparatus main body as an object to be packed is shown in FIGS. Here, the electrophotographic image forming apparatus forms an image on a recording medium using an electrophotographic image forming system. Examples of the electrophotographic image forming apparatus include an electrophotographic copying machine, an electrophotographic printer (for example, a laser beam printer, an LED printer), a facsimile machine, a word processor, and the like. The process cartridge is a cartridge in which at least one of a charging unit, a developing unit, and a cleaning unit as a process unit and an electrophotographic photosensitive member are integrally formed so as to be detachable from the main body of the image forming apparatus.

(1) Cutting the packaging material from the sheet (Figure 3)
A packing member S1 having a predetermined width necessary for packing the process cartridge 35 is cut out from the long roll-shaped sheet S of the packing member having the plurality of medium storage units 3, the check valve 4, and the introduction unit 5. In the present embodiment, the packaging member S1 is cut using scissors K1, but the packaging member S1 may be cut using a cutter or a dedicated cutting device. Further, since the cored bar K2 is provided at the center of the roll-shaped sheet S, it is easy to pull out the sheet from the roll-shaped sheet S, and it is easy to cut out the packing member S1. Further, when the packing member S1 is cut out by an automatic machine or the like, it is easy to set the roll sheet S at a predetermined position.

(2) Processing the packaging member into a bag shape (FIGS. 4 to 6)
In the longitudinal direction of the medium storage portion 3 of the cut packaging member S1, the packaging member S1 is folded in half from the vicinity of the center. In the case of folding in two, they are stacked so that the rear end portion 53 in the longitudinal direction of the medium storage portion 3 comes to the position shown in FIG.

  And the bag shape which one end of the longitudinal direction opened the packing member S1 by heat-welding (heat-sealing) the both ends (welding part 12 and the welding part 13) of the direction which cross | intersects the longitudinal direction of the medium accommodating part 3. Can be. Further, the welded portion 12 and the welded portion 13 are provided to extend along the longitudinal direction of the medium storage portion 3.

  Further, as will be described in detail later, the notch 15 is provided in the packing member S1. This notch 15 is a portion that becomes a trigger for forming an opening for taking out the object to be packed when the object to be packed is taken out after being stored in the packing member S1. The notch 15 is a part for forming a discharge opening for discharging the medium stored in the medium storage unit 3 to the outside of the packing member S1 at the same time. The notch 15 in the present embodiment has a Y shape as shown in FIG. By making the tip of the lower end of the letter Y point in a direction substantially perpendicular to the medium storage portion 3, the discharge opening can be formed with high accuracy substantially parallel to the short direction of the packaging member S1.

  In the present embodiment, the packing member S1 has a bag shape in which one end in the longitudinal direction has an opening. However, the packaging member S1 has a bag in which one end in a direction intersecting the longitudinal direction or both ends in the direction intersecting the longitudinal direction are opened. It is good also as a shape. Furthermore, the packing member may have a bag shape in which one end in the longitudinal direction and one end in the direction intersecting the longitudinal direction are opened.

(3) Insert an object to be packed (cartridge 35) into the packing member S1 (FIG. 5).
As shown in FIG. 5, a cartridge 35, which is an object to be packed, is inserted from an opening 18 provided at one end in the longitudinal direction. That is, the cartridge 35 is inserted so that the longitudinal direction of the cartridge 35 and the longitudinal direction of the medium storage unit 3 coincide. After that, as shown in FIG. 5, in order to close the opening 18, the welded portion 19 is thermally welded (heat sealed) to completely seal the cartridge 35. The welded portion 19 is provided so as to extend in a direction crossing the longitudinal direction of the medium storage portion 3. That is, the welded portion 19 seals the short side of the cartridge 35. Further, the welded portion 19 is provided at a position closer to the injection port 11 than the welded portion 8 and the reverse support valve 4. However, as shown in FIG. 30, since the seal member 4c extends from the 19a portion of the welded portion 19, thermal welding is not performed. Therefore, it is possible to introduce air into the medium storage portion 3 of the packing member S1 in which the cartridge 35 is sealed through the check valve 4 as indicated by an arrow.

(4) Injection of medium (FIGS. 5 and 9)
Thereafter, air as a medium is injected from the inlet 11 of the medium introducing unit 5. Then, air is introduced into each medium storage unit 3 through the check valve 4. The reason why air is introduced after the cartridge 35 is inserted is to prevent the generation of static electricity between the film 1 and the film 2 when the cartridge 35 is inserted. That is, when the packaged object (cartridge 35) is placed in the packaging member into which air has been introduced, the packaged object (cartridge 35) is adversely affected by static electricity. Further, it is because the workability of inserting the cartridge 35 is better when the air is introduced after the cartridge 35 is inserted. As shown in FIG. 9, after air is introduced after the cartridge 35 is inserted, tension is applied to the medium introducing portion 5 to try to form a flat shape. Therefore, the air present in the medium introducing portion 5 is pushed out as indicated by the arrow and discharged from the inlet 11. Although air is introduced as a medium in the present embodiment, the medium is not limited to air, and may be nitrogen gas, oxygen gas, or the like. In particular, nitrogen gas has a high molecular weight, and therefore is difficult to leak from a medium storage portion made of plastic film or the like. Other media may be liquid or fluid. In the present embodiment, as shown in FIG. 14, the lengths of the end portions of the film 1 and the film 2 are shifted at the inlet 11. This is because the injection port 11 can be easily opened when a nozzle such as an injection device (not shown) is inserted into the injection port.

(5) Sealing of the medium introduction part (heat sealing)
Next, as shown in FIG. 10, the region 48 (sealing region) on the side where the injection port 11 is provided in the longitudinal direction, that is, the region where the medium introduction unit 5 is provided is thermally welded (see FIG. 10). Heat seal). The heat-welded area is the welded portion 50. And the position of this welding part 50 is a position where the capacity | capacitance of the introduction part 5 after heat welding will be 5%-10% of the whole capacity | capacitance of the medium storage part 3 of packing member S3. The welded portion 50 extends along the direction intersecting the longitudinal direction of the medium storage portion 3 and is thermally welded (heat sealed). As will be described in detail later, the air introduced into the medium storage unit 3 is expanded by the expansion of the medium storage unit 3 when the packaging member S1 is exposed to a high-temperature, high-humidity or low-pressure environment for a long period of time. This is to prevent leakage from the packaging member S1. That is, the region 48 is thermally welded to secure a region where air is stocked even when a predetermined amount of air flows back through the check valve 4. Further, in this embodiment, the region closer to the inlet 11 than the welded portion 50 is thermally welded by the welded portion 51. This is to prevent the air further leaked at the welded portion 50 from leaking out of the packing member. The welded portion 51 also extends along the intersecting direction and is thermally welded (heat sealed).

  Further, as shown in FIG. 8, the packing member S1 in which the cartridge 35 is inserted is in a state where the corners (C1, C2, C3, C4) protrude from between C1 and C2 and between C3 and C4. . Therefore, even when the packaging member S3 falls from the corner portion, the shock absorbing performance that weakens the impact is improved.

  In the present embodiment, the cartridge 35 is inserted into the bag-shaped packaging member S1 described above, but the cartridge 35 is directly covered (covered), and then the end of the packaging member is thermally welded to store the contents. It can be sealed.

(6) Packing in packing box The packing member S1 that completely seals the cartridge 35 is inserted into the packing box 38 (FIGS. 24 and 25). Thereafter, the tags 38a and 38b are bent inward. Then, the tag 38c is bent inward, and then the tag 38d is bent, and the tag 38d is bonded to the tag 38c. At this time, 38c1 and 38c2 of the tag 38c are inserted into the cut portions 38d1 and 38d2 of the tag 38d. In the present embodiment, as shown in FIG. 24 to FIG. 34, when the object to be packed is a cartridge 35, the cartridge 35 can be inserted from the side surface in the longitudinal direction. Conventionally, as shown in FIGS. 27 and 36, the cartridge 35 is inserted from the upper surface in the longitudinal direction. This is because, as shown in FIGS. 39 and 40, the cartridge 35 is inserted into the packing bag 42, and after the side pads 39 and 40 are inserted from both sides, the cartridge 35 is fixed in the packing box 43. It is.

As described above, the configuration in which the object to be packed (cartridge 35) is inserted from the side surface in the longitudinal direction has the following advantages.
(1) Since the opening 43e is not provided on the upper surface in the longitudinal direction and the opening 38e is provided on the side surface in the longitudinal direction as in the conventional packaging box 43, the strength of the entire packaging box can be increased.
(2) As shown in FIGS. 31 and 40, the packing box can be configured with a material area smaller than that of the conventional packing box 43. This is because, as shown in FIG. 40, the size of the tab 38a to the tab 38d in the present embodiment can be made smaller than the size of the conventional tab 43b to the tab 43d. Conventionally, as shown in FIG. 31, only three corrugated cardboard sheets B1 having a shape obtained by developing a conventional packing box 43 can be produced from the corrugated cardboard sheet B2. However, in the present embodiment, as shown in FIG. 32, the corrugated cardboard sheet B3 having a shape in which the packing box 38 is developed can form four packing boxes from the corrugated cardboard sheet B2. Therefore, the packaging box and the product unit cost can be reduced.
(3) Also, as shown in FIGS. 33 and 34, the number of packing boxes that can be placed on the pallet B4 for transportation is conventionally 180 packing boxes 43 (FIG. 33), In the present embodiment, 203 packing boxes 38 (FIG. 34) can be placed. The first reason is that the present embodiment can be made smaller than the conventional packing box. And the 2nd reason is because the intensity | strength of the whole packaging box could be increased as described in (1).
(4) Further, the machine for manufacturing the packing box 38 can be made smaller than the machine for manufacturing the conventional packing box 43. This is because the packing box 38 can be made from a small amount of material.
(5) It is easy for the user to take out the object to be packed (cartridge 35). This is because the zipper part 38f is also smaller than the zipper part 43f of the packing box 43 and there is no side pad.

  Hereinafter, a packing method for packing an object to be packed using a packing member is summarized as follows.

  In order to inflate the medium storage unit 3 and the medium storage unit 3, the medium toward the medium storage unit 3 is allowed to pass therethrough, the check valve 4 that restricts the medium flowing back from the medium storage unit 3, and the medium storage unit 3 is inflated. An introduction unit 5 that introduces a medium from the outside of the packaging member S1 to the medium storage unit 3 via the stop valve 4 and a medium that flows back from the medium storage unit 3 to the introduction unit 5 via the check valve 4 In order to prevent leakage from the packaging member S1 to the outside of the packing member S1, in order to seal the introduction part 5 provided on the upstream side of the check valve 4 in the introduction direction from the introduction part 5 toward the check valve 4. A packing method for packing an article to be packed using a packing member S1 having a sealing region 48 that is sealed after the medium is stored in the medium storage unit 3. The packaged material is stored in the member S1, and then the medium is transferred to the medium storage unit 3 through the introduction unit 5. Introduced, subsequently, a packing method characterized by sealing the sealing area 48.

  Moreover, the introduction part 5 has the inlet 11 which introduce | transduces a medium from the exterior of packing member S1 in the edge part of the upstream of an introduction direction. In the check valve 4, the medium is introduced from the injection port 11 in a direction substantially coinciding with the passing direction in which the medium passes toward the medium storage unit 3.

  The plurality of medium storage units 3 are arranged side by side, the check valves 4 are provided for the plurality of medium storage units 3, respectively, and the introduction unit 5 is also a plurality of the medium storage units. 3 are provided independently. The medium is introduced into the medium storage unit 3 through the introduction unit 5 and the check valve 4.

  Each of the plurality of introduction portions 5 has an injection port 11 for introducing a medium from the outside of the packing member S1 at an upstream end in the introduction direction, and the width W1 of the injection port 11 has a plurality of introduction ports. Narrower than the width W2 of the connecting portion with the check valve 4 provided on the downstream side in the introduction direction of the portion 5, and the inlet 11 are provided adjacent to each other. And it is a packing method characterized by introducing a medium from the inlet 11.

  In addition, it can be said that the above-mentioned packing method is a packing method suitable for manual work.

  Further, in the packing method for packing an object to be packed, a medium storage unit 3 for storing a medium, and a check valve 4 for restricting a medium flowing back from the medium storage unit 3 through the medium toward the medium storage unit 3 In order to inflate the medium storage unit 3, an introduction unit 5 for introducing a medium from the outside of the packing member S 1 to the medium storage unit 3 through the check valve 4, and the medium storage unit 3 through the check valve 4. In order to prevent the medium that has flowed back from the introduction part 5 to leak out of the packaging member S1 from the introduction part 5 to the upstream side of the check valve 4 in the introduction direction from the introduction part 5 to the check valve 4 Preparation for preparing a packing member S1 having a sealing region 48 for sealing the introduction unit 5 and sealed after the medium is stored in the medium storage unit 3. Process, packing object storing process for storing packing object in packing member S1, and packing A medium introduction step for introducing a medium into the medium storage portion 3 through the introduction portion 5 after the object storage step, and a sealing step for sealing the sealing region 48 after the medium introduction step. It is a packing method.

  Further, in the preparation step, the introduction part 5 prepares a packing member having an inlet 11 for introducing a medium from the outside of the packing member S1 at an upstream end in the introduction direction, and the medium introduction step is reversed. The packing method is characterized in that the medium is introduced from the injection port 11 in a direction substantially coinciding with the passing direction in which the medium passes toward the medium storage unit 3 in the stop valve 4.

  In the preparation step, a plurality of medium storage units 3 are arranged side by side, the check valve 4 is provided for each of the plurality of medium storage units 3, and the introduction unit 5 is also provided. A packing member provided independently in each of the plurality of medium storage units is prepared, and in the medium introduction step, the medium is introduced into the medium storage unit 3 via the introduction unit 5 and the check valve 4. Is a packing method characterized by

  Further, in the preparation step, each of the plurality of introducing portions 5 has an inlet 11 for introducing a medium from the outside of the packing member S1 at an upstream end in the introduction direction. The width W1 is narrower than the width W2 of the connection portion with the check valve 4 provided on the downstream side in the introduction direction of the plurality of introduction portions 5, and the inlets 11 are provided adjacent to each other. The packing member is prepared, and the medium introducing step is a packing method characterized by introducing the medium from the inlet 11.

  In addition, it can be said that the above-mentioned packing method is suitable for the packing method by a machine work, for example, an automatic machine.

(Media introduction unit 5)
As described above, when the packaging member S1 is exposed to a high temperature, high humidity, or low pressure environment for a long period of time, air flows back from the check valve 4 due to an increase in the internal pressure in the medium storage unit 3. In that case, since the medium introduction part 5 is not sealed in the conventional example, the air in the medium storage part 3 gradually escapes as shown in FIG. Therefore, there is a possibility that the packaged object cannot be reliably packed and the packaged object cannot be reliably protected from the impact.

  Therefore, in the present embodiment, as described above, as shown in FIGS. 10, 11, and 13, the region in which the air that flows back from the check valve 4 is stocked due to the increase in the internal pressure in the medium storage unit 3 ( The medium introduction unit 5 was used as a buffer area. That is, the air that has flowed back from the medium storage unit 3 to the introduction unit 5 via the check valve 4 is sealed by sealing the medium introduction unit 5 at the welding units 50 and 51 after storing the air in the medium storage unit 5. It is possible to prevent leakage from the introduction part 5 to the outside of the packaging member S1. Therefore, even if air flows backward through the reverse support valve 4 due to an environmental change in storage of the packaging member S1, the medium does not leak out of the packaging member. Specifically, in the past, when a packing member without a buffer area was left in a severe test environment (temperature 40 ° C., humidity 95%), the initial medium storage portion had an internal pressure of 50 Kpa. The internal pressure of the storage unit becomes 0 Kpa. However, in the packaging member S1 of the present embodiment, even when left in a severe test environment (temperature 40 ° C., humidity 95%) for 60 days, the initial internal pressure in the medium storage unit 3 is reduced to 20 Kpa. It can be suppressed to the extent. Incidentally, when it is left in a normal temperature environment (temperature 23 ° C., humidity 60%), it takes 4.58 years for the internal pressure in the medium storage unit 3 to drop from 50 Kpa to 10 Kpa in simulation. Therefore, it is possible to reliably pack the packaged item and to reliably protect the packaged item from the impact.

  Further, a cut 15 is provided at the end on one end side in the direction intersecting the longitudinal direction of the medium storage unit 3 of the medium introduction unit 5 (FIG. 6). An anti-slip portion (gripping portion) 16 is provided around the notch 15 so that an operator can easily hold the packaging member when tearing the packing member from the notch. The anti-slip portion 16 is a portion where the rear end portion in the longitudinal direction of the medium storage portion 3 and the medium introduction portion 5 are brought into close contact with each other by heat welding (heat sealing). Further, the cut 15 is located outside the welded portion 12 at one end in a direction intersecting the longitudinal direction of the medium storage portion 3. Then, by tearing the packing member from the cut 15, the medium storage unit 3 is broken as shown in FIGS. 15 and 16. The air introduced into the medium storage unit 3 can be removed simultaneously with the formation of the opening 21 for taking out the cartridge 35.

  In the present embodiment, as shown in FIG. 14, a welding portion 51 is provided in a portion where the opening 21 in the medium storage portion 3 is to be formed so that the medium storage portion 3 can be opened more smoothly. By providing the welded portion 51, the medium storage portion 3 can be easily torn without requiring a large force. In addition, the welding part 51 is provided so that the clearance gap H may be ensured so that the medium storage part 3 can be filled with air. By removing the air introduced into the medium storage unit 3, the volume of the used packaging member can be reduced. Further, the cartridge 35 can be easily taken out from the packing member S1. As shown in FIG. 14 a, guide portions 22 and 49 that can guide the tearing shape are provided so that the opening 21 is torn along the direction intersecting the longitudinal direction of the medium storage portion 3. Incidentally, FIG. 14a is a plan view of the packaging member S1 containing the cartridge as viewed from the opposite side. The guide portion 22 is formed at a distance of 7 mm from the welded portion 19 to the inner side (the check valve 4 side), with a width of 20 mm and a predetermined interval. A guide portion 49 is also provided inside the guide portion 22 at a predetermined interval with a width of 20 mm. The guide portions 22 and 49 are also formed by heat welding. Without the welded portions 22 and 49, it is difficult to tear along the direction intersecting the longitudinal direction of the medium storage portion 3. That is, it becomes impossible to take out the object to be packed (cartridge 35), and it is difficult to remove the air that is torn along the welded part 19 and introduced into the medium storage part 3 as shown in FIG. 14c. As shown in FIG. 14 a, the guide portions 22 are provided so as to cross the welded portions 10 between the medium storage portions 3. This is for preventing the welded portion 10 from becoming a resistance when the medium storage portion 3 is torn from the notch 15 and being able to be torn in parallel with the medium introducing portion 5. In addition, there are portions (non-welded portions) 34 and 35 that are not thermally welded between the guide portions 22 and 49. As shown in FIG. 14 b, even if the opening to be teared is between the welded portion 19 and the guide portion 22, the air in the medium storage portion 3 can be extracted. The guide portions 22 and 49 are formed from the state of the sheet S in FIG.

  Further, the shape of the other guide portions may be shapes such as the guide portion 38 in FIG. 23a, the guide portion 39b in FIG. 23, the guide portion 40 in FIG. 23c, and the guide portions 41 and 42 in FIG. Also in this case, non-welding portions 43, 44, 45, 46, and 47 are provided so that air in the medium storage portion 3 can escape.

(Medium storage)
As a characteristic configuration of the medium storage unit 3, a narrow region 3 b in the width direction intersecting with the longitudinal direction of the medium storage unit 3 is provided at a predetermined position in the longitudinal direction of the medium storage unit 3. Accordingly, the pressure applied to the cartridge 35 after the medium is stored in the medium storage unit can be reduced. As shown in FIG. 17, the width W4 of the narrow area 3b is narrower than the width W3 of the area 3a upstream and downstream of the narrow area 3b in the air introduction direction. That is, the cross-sectional area of the narrow region 3b is smaller than the cross-sectional area of the region 3a other than the narrow region 3b. Moreover, the narrow area | region 3b can be formed by making the width | variety of the welding part 23 larger than the welding part 10, as shown in FIG. The welding part 23 is also formed by applying heat by a dedicated heat welding device (not shown). Further, the welded portion 23 also has a shape extending along the longitudinal direction of the medium storage portion 3. In the present embodiment, the width W3 is 25 to 30 mm, and the width W4 of the narrow region 3b is 15 to 20 mm.

  In particular, in the present embodiment, the configuration is such that the amount of air introduced into the portion corresponding to the approximate center of the article to be packed (cartridge 35) is reduced. In the present embodiment, as shown in FIGS. 17 and 18, the amount of air introduced is reduced by making the width of the portion 3b corresponding to the substantially center narrower than the other region 3a. In order to reduce the width of the medium storage unit 3, the narrow portion 3b of the medium storage unit 3 is formed by partially increasing the area (welding part 23) for heat welding (heat sealing). It is possible. By reducing the amount of air introduced, it is possible to reduce the pressure applied to the substantially central portion of the object to be packed (cartridge 35) (FIG. 19A). When the object to be packed is the cartridge 35, the substantially central portions such as the housing 35d, the cover member 35b, and the handle portion 35c provided on the cartridge 35 are easily deformed as compared with the end portions due to the pressure. Accordingly, as shown in FIG. 19B, the photosensitive drum 35a or the transfer roll 35e provided in the cartridge 35 may be damaged by deformation of the housing 35d, the cover member 35b, and the like. As a means for preventing this, as shown in FIG. 19A, a region 3b in which the width of the medium storage portion 3 is narrowed is positioned at a substantially central portion of the cartridge 35 in the axial direction of the photosensitive drum. This is to prevent the pressure by the medium storage portion 3 of the packing member S <b> 1 from being applied to the substantially central portion of the cartridge 35. Therefore, it is necessary to form the narrow portion 3b of the medium storage portion 3 at a substantially central portion of the packaged object (cartridge 35) before making the packing member into a bag shape.

  20 and 21, in the case of a packing member S2 where the axial direction of the photosensitive drum of the cartridge 35 intersects the longitudinal direction of the medium storage unit 24, the axial direction of the photosensitive drum. The check valve 28 can be thermally welded (welded portion 26) so that air is not introduced into the medium storage portion 25 corresponding to the substantially central portion of the process cartridge 35 in FIG. With the above-described configuration, as shown in FIG. 22 a, the pressure by the medium storage unit 25 can be prevented from being applied to the substantially central portion of the cartridge 35. (FIG. 22b shows a state in which the housing 35d and the cover member 35b provided in the cartridge 35 are deformed as in FIG. 19B.) In FIG. The state in which the medium storage unit 25 in which no is introduced is configured to be at the position of the handle portion 35c is shown.

  As described above, in the present embodiment, the width of the medium storage portion 3 corresponding to the substantially central portion in the longitudinal direction of the object to be packed (cartridge 35) is reduced, or air cannot be introduced. However, as shown in FIG. 35, even in the end portion that is not the center of the article to be packed (cartridge 35), the medium storage portion 3 corresponding to the protrusion 47 from the protrusion 44 protruding from the article to be packed (cartridge 35). The width may be narrowed or a portion where air cannot be introduced may be configured. It is possible to prevent the medium storage unit 3 from being damaged by the protrusions and leaking air.

  In the present embodiment, the packing object is described using the cartridge 35, but in addition, the ink cartridge of the ink jet printer, the camera, the printer main body, the video camera, and the detachable used for the electrophotographic image forming apparatus. It may be a fixing unit. In addition to the plastic film, the flexible member may be a paper film, a metal film, or the like.

The top view which shows the packing member of this Embodiment Sectional drawing which shows the packaging member of this Embodiment The perspective view which shows the packing method which packs a cartridge using the packing member of this Embodiment. The perspective view which shows the packing method which packs a cartridge using the packing member of this Embodiment. The top view which shows the packing method which packs a cartridge using the packing member of this Embodiment The top view which shows the packing method which packs a cartridge using the packing member of this Embodiment The perspective view which shows the packing method (cartridge insertion) which packs a cartridge using the packing member of this Embodiment The top view which shows the packing method (cartridge insertion) which packs a cartridge using the packing member of this Embodiment The perspective view which shows the packing method (after sealing) which packs a cartridge using the packing member of this Embodiment The top view which shows the packing method (after sealing) which packs a cartridge using the packing member of this Embodiment Sectional drawing which shows the state where the pressure inside a medium storage part is high The perspective view which shows the state from which air leaks out of a medium storage part The perspective view which shows the packaging member of this Embodiment (A) is a plan view (rear side) showing the packaging member of the present embodiment, (b) is a plan view (rear side) showing a state where the packaging member of the present embodiment is torn from the notch, ( c) is a plan view (back side) showing a state in which a packaging member having no guide portion is torn. The perspective view which showed the state which open | releases a packing member from a notch part in this Embodiment The perspective view which showed the state which open | released the packaging member from the notch part in this Embodiment The top view which shows the packing member of this Embodiment The perspective view which shows the packaging member of this Embodiment (A) is sectional drawing which shows the state of the packaging member of this Embodiment, and a storage thing, (b) is sectional drawing which shows the state of the packaging member and cartridge which do not have a 2nd introducing | transducing part. The top view which shows the packing member of this Embodiment The perspective view which shows the packaging member of this Embodiment (A) is sectional drawing which shows the state of the packaging member of this Embodiment, and a storage thing, (b) is sectional drawing which shows the state of the packaging member and storage thing without the medium storage part into which air is not introduce | transduced (A) is a top view which shows the shape of the guide part in other embodiment, (b) is a top view which shows the shape of the guide part in other embodiment, (c) is other implementation. The top view which shows the shape of the guide part in the form of this, (d) is a top view which shows the shape of the guide part in other embodiment The perspective view which shows the packaging box of this Embodiment The perspective view which shows the packaging box of this Embodiment The perspective view which shows the packaging box of this Embodiment Perspective view showing a conventional packing box Perspective view showing a conventional packing box The top view which shows the packing member of this Embodiment Sectional drawing which shows the packaging member of this Embodiment Development view of conventional packing box Exploded view of the packaging box of this embodiment The perspective view which shows the loading state of the conventional packing box The perspective view which shows the loading state of the packaging box by this Embodiment Sectional drawing which shows the state of the packaging member and cartridge of this Embodiment Sectional drawing which shows the state of the packaging member and cartridge which do not have a 2nd introduction part Sectional drawing which shows the state of the packaging member and cartridge of this Embodiment Sectional drawing which shows the state of the packaging member and cartridge which do not have the medium accommodating part into which air is not introduced Perspective view showing a conventional packing box Perspective view showing a conventional packing box The top view which shows the detail of the introduction part of the packing member of this Embodiment Sectional drawing which shows the packaging member of this Embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plastic film 2 Plastic film 3, 24, 25 Medium storage part 4, 27, 28 Check valve 5, 5a-5g, 29 Medium introducing | transducing part 5a1-5c1, 5e1-5g1 1st introduction channel | path 5a2-5c2, 5e2- 5g2 Second introduction passage 6, 7, 8, 9, 10, 12, 13, 14, 19, 20, 23, 26, 30, 31, 32, 33, 49, 50, 51 Welded portion 11, 11a to 11g Air inlet 15 Notch 16 Grasping part 18, 21 Opening 22, 38, 39, 40, 41, 42 Guide part 34 Non-welded part 35 Process cartridge 35a Photosensitive drum 35b Drum shutter 35c Handle 35d Cartridge frame 35e Transfer roller 38 , 43 Packing box S1 Packing member S Packing member (roll shape)
K1 Scissors K2 Core metal B1, B2, B3 Corrugated cardboard sheet B4 Pallet

Claims (6)

In the packing material for packing the packaged items,
A plurality of medium storage units arranged side by side to store the medium;
A check valve that restricts a medium that flows back from the medium storage unit by allowing a medium that is directed to the medium storage unit to pass therethrough, and is provided in each of the plurality of medium storage units;
In order to inflate the plurality of medium storage units, the medium is introduced into the medium storage unit from the outside of the packing member via the check valve independently of the plurality of medium storage units. A plurality of introduction sections provided;
Said their respective vignetting set to a plurality of end of the introduction, a inlet for introducing a medium, has a width less than the width of the connecting portion between the inlet portion and the medium housing section, next An inlet provided in contact with the inlet;
A packaging member comprising: At least one of the plurality of medium storage units includes a first introduction passage that guides the medium injected from the injection port in a direction inclined with respect to a longitudinal direction of the medium storage unit, and the check valve A second introduction that is provided between the first introduction passage and guides the medium that has passed through the first introduction passage in a direction substantially coincident with a longitudinal direction of the medium storage portion to the check valve; The packaging member according to claim 1 , further comprising a passage.   3. The packaging according to claim 2, wherein, in the plurality of introduction portions, the length of the second introduction passage is longer as the inclination of the first introduction passage with respect to the longitudinal direction of the medium storage portion is larger. Element.   The packing member according to any one of claims 1 to 3, wherein a medium introduction direction at the inlet substantially coincides with a longitudinal direction of the medium storage portion. Furthermore, the packaging member is
In order to prevent the medium that has flowed back from the medium storage part to the introduction part through the check valve from leaking out of the packing member from the introduction part, the medium is directed from the introduction part to the check valve. A sealing region for sealing the introduction portion provided upstream of the check valve in the introduction direction, the sealing region being sealed after the medium is stored in the medium storage portion The packaging member according to any one of claims 1 to 4, wherein the packaging member is provided. A packing member that packs an object to be packed, a plurality of medium storage units arranged side by side that store a medium, and a medium that flows back from the medium storage unit through the medium that is directed to the medium storage unit. A check valve for regulating the check valve provided in each of the plurality of medium storage units, and the medium storage unit via the check valve to inflate the plurality of medium storage units. introducing medium from the outside of the packing member, and a plurality of inlet portions provided independently for each of for the plurality of medium accommodating portions, their respective been kicked set at one end of said plurality of introduction, An inlet for introducing a medium, the inlet having a width narrower than a width of a connecting portion between the medium storage portion and the inlet, and provided in contact with the adjacent inlet using said packing member to a packing method for packing an object to be packed,
Storing the object to be packed in the packing member;
Thereafter, a medium is injected from the injection port into the medium storage unit through the introduction unit by an injection device.

Images