JP2015101367A - Packaging apparatus for precision apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging apparatus for precision apparatus, which can be assembled from a small number of components, has a high protective function for an accommodated precision apparatus, and is easily assembled or disassembled, and from which the precision apparatus can safely and easily be taken out.SOLUTION: A packaging box 1 for a precision apparatus comprises an outer box 2 and an inner material 3, each of which is formed by folding one sheet of thin plate material having thickness and cushion as of corrugated board. The outer box 2 has a rectangular bottom part 10, four side parts 11A, 11C, and upper lids 21C, 21D. The two side parts 11A are composed as a collapsible outer door. Inside doors 14A, 14B, forming a double door, are provided inside the side parts 11A. By folding the foldable parts 18A, 18B inside, the side parts 11A and inside doors 14A, 14B are made non-separable. The inside material 3 has a central plate part 30 placed over the bottom part 10, and two upward extending parts 31C, 31D placed over the inside of the side parts 11C.

Description

  The present invention relates to a packaging box for precision equipment used for packaging precision equipment such as a bearing whose outer shape is substantially cylindrical and whose axial dimension is longer than the radial dimension.

  When sending precision equipment that has a substantially cylindrical shape and a long axial dimension compared to the radial dimension, for example, rolling stock axle bearings from a manufacturer to a delivery destination, a plurality of precision instruments can be contained in a wooden box, or One by one is transported in a cardboard box made of corrugated paper.

  As a packaging box made of paperboard that can accommodate the precision device 50, a rectangular box having an upper lid 60 that opens and closes as shown in FIG. 12 is generally used. Further, in order to protect and improve the strength of the precision device 50, there is a case in which a rectangular tube-shaped inner material 62 penetrating vertically is fitted inside the outer box 61 as shown in FIG. 13 (the precision device is omitted). . In any packing box, the upper lid 60 is opened and the precision device 50 is taken in and out from above.

  The following proposals have been made for packaging boxes used for packaging other than precision equipment. In Patent Document 1, in order to make it easy to take out an object to be packaged, a side perforation can be opened by putting a perforation in a box. In Patent Document 2, the side part of the box can be opened and closed in a double-spreading manner. Moreover, the structure which opens and closes the side surface of a box with the outside front-and-back wall which can be laid down, and the flap which opens in an inner side opening shape is employ | adopted for packaging boxes, such as the cake currently disclosed by patent document 3. Yes.

Japanese Patent Publication No. Sho 63-317480 Japanese Patent Publication No. 64-317480 JP 2003-226325 A

  Even if a plurality of precision instruments are packed in a wooden box, the cost per precision instrument is higher than that of a corrugated cardboard packaging box. In addition, when a plurality of precision instruments are packed in a wooden box, the overall weight becomes very heavy, making it difficult to handle and bulky storage. Furthermore, the wooden box is troublesome to dismantle and dispose of after use.

  On the other hand, the packaging box made of corrugated paper has the advantage that the cost per precision instrument can be kept low, and the precision equipment is packed one by one, so that it is easy to handle. However, since it is inferior to a wooden box in strength, it is necessary to put a cushioning material made of corrugated cardboard or the like in the box when accommodating precision equipment such as railcar bearings. Therefore, the number of parts as a whole of the packing means increases, and parts management is troublesome.

  A further problem is with precision equipment. The conventional packaging boxes made of corrugated paper as shown in FIG. 12 and FIG. 13 are a system in which a heavy precision instrument is lifted and taken out, so that it is difficult to take out and is dangerous. Therefore, in an actual site, the packing box is often cut with a cutter knife or the like to open a part of the side surface, and the precision instrument is slid sideways from there. This method of taking out requires careful attention not to damage the precision instrument with a cutter knife when the packaging box is disassembled, and it takes time to cut. In addition, some methods have been carried out by pulling out the precision equipment inside by defeating the packing box, but this method has a problem in handling the precision equipment.

  In addition, since the conventional corrugated cardboard packaging box has joined the corrugated sheet joints with iron pins or the like, it takes time to disassemble the iron pins and the like at the time of disassembly. In addition, a lot of garbage other than corrugated paper comes out after dismantling, and the rear cleaning is troublesome.

  In order to solve the above-described problem, as shown in FIG. 14, the packaging box includes a lower box 62 on which the precision device 50 is placed and an upper box 63 that covers the lower box 62 from above. A method of binding the upper box 63 from the outside with a band (not shown) was examined. However, this method cannot be re-packed once the band is cut. For this reason, once unpacking for product confirmation or the like, it is difficult to move the precision device 50 in a packing box. In addition, the packaging box after the new precision instrument is taken out cannot be used to collect the old precision instrument. Further, when the upper box 63 is pulled out, there is a risk that the heavy precision instrument 50 may fall down.

  The object of the present invention is to provide a precision instrument packaging box which can be assembled with a small number of parts, has a high protection function for stored precision instruments, is easy to assemble and disassemble, and can be taken out safely and easily. Is to provide.

A packaging box for precision equipment according to the present invention is a packaging box for precision equipment used for packaging precision equipment having a substantially cylindrical outer shape and a longer axial dimension than a radial dimension. It consists of an outer box that is housed in an up-and-down manner, and an inner material that is interposed between the outer box and the precision device, and both the outer box and the inner material have a cardboard-like thickness and cushioning properties. One thin plate is formed by bending.
The outer box has a rectangular bottom surface portion and four side surface portions extending upward from each side of the bottom surface portion, and one of these four side surface portions or two surfaces facing each other are: The outer door is configured as an outer door that can be laid down until its upper end is at the same height as the bottom surface. The two side surfaces adjacent to both sides of the outer door are folded inwardly of the outer door. Each of the door members is provided, and the pair of door members constitutes an inner door that can be opened outwardly in a double-sided manner when the outer door is lying down, and is not the outer door among the four side surfaces. An upper lid that closes an upper portion of a space surrounded by the bottom surface portion and the four side surface portions is provided at an upper end of the side surface portion, and the inner plate is a central plate portion that is overlaid on the bottom surface portion of the outer box And rises upward from two opposite sides of the central plate portion, and the outer box Two rising portions that are overlapped on the inside of the two side surfaces provided with the door member, and the outer door and the inner door are separably fixed to at least one of the outer door and the inner door. The fixing means is provided.

  According to this structure, in the state which packed the precision instrument, the external shape of the packaging box for precision instruments becomes a rectangular parallelepiped shape. Of the four side surfaces, one surface or two surfaces facing each other has a double structure including a side surface portion that is an outer door and an inner door. The remaining two surfaces facing each other have a double structure including a side surface portion that is not an outer door of the outer box and a rising portion of the inner material. In addition, the bottom surface of the packaging box for precision equipment has a double structure including a bottom surface portion of the outer box and a central plate portion of the inner material. As described above, since the precision device is double-protected by the thin plate material having the cushioning property, the protection function for the stored precision device is high.

  To remove the precision instrument, first open the top lid. Next, the fixing means is removed so that the outer door and the inner door can be separated from each other. Then, open the outer doors with lying down. In addition, the inner door is opened in a double door. Thereby, the side surface closed by the outer door and the inner door is opened. From this open side, slide the precision instrument inside to the side. Only precision equipment may be taken out, or precision equipment may be taken out together with the inner material. At the time of taking out, if the precision device is moved by sliding on the fallen outer door, the precision device can be taken out safely and easily.

  The packaging box for precision equipment having this configuration includes an outer box and an inner member, and both the outer box and the inner member are formed by bending one thin plate member. For this reason, the number of parts is small, and assembly / disassembly is simple.

In this invention, the fixing means is a state in which the outer door and the inner door are combined with each other by folding the folded portion provided at the upper end of the outer door inward beyond the upper end of the inner door. It is good to have a configuration to do.
With this configuration, a fastener such as an iron pin is not required for assembling the outer box. For this reason, the number of parts can be further reduced, and assembly and disassembly are simple.

In the present invention, it is preferable that an inner lid that can be bent inward is provided at the tip of the rising portion of the inner member, and a handle hole is formed in each inner lid.
When the inner lid is provided, the upper surface of the packaging box for precision equipment has a double structure consisting of the upper lid of the outer box and the inner lid of the inner material, and the protection function of the upper side against the precision equipment is enhanced. In addition, if a handle hole is formed in the inner lid, a rope, a band, or the like is passed through the handle hole or a hook is hooked at the time of packing, so that the precision device is hung together with the inner material by a crane or the like. Can be put inside. Thereby, it is not necessary for the operator to directly handle heavy precision equipment, which is safe.

In the present invention, the pair of door members preferably hold the inner door closed by frictional resistance of the contact surfaces of the concave and convex portions by engaging the dovetail concave and convex portions with each other.
By making the concave portion and the convex portion into a dovetail shape, the holding force for keeping the inner door closed can be appropriately increased. Accordingly, the inner door can be held in a closed state even when there is no restriction from the outside by the outer door, and the inner door can be opened by manually pulling the pair of door members apart.

In the present invention, a side notch for avoiding interference with the folded portion when the folded portion is folded inward or when the folded portion is returned may be provided on the side portion of the rising portion.
When the side notch is provided in the rising portion of the inner material, the folded portion does not interfere with the rising portion, and the outer door can be opened and closed smoothly.

In this invention, it is preferable to provide a handle hole that is closed from the inside by the rising portion of the inner member on the side surface portion of the outer box that is not the outer door.
When the handle hole is provided, it is easy to carry the outer box. In a state in which the precision instrument is packed, the handle hole is closed from the inside by the rising portion of the inner material, so that the hermeticity in the box is maintained.

In the present invention, a tip notch for avoiding interference with the precision instrument housed therein is provided at the tip of the folded portion of the inner material when returning the folded portion. And good.
When the front end cutout is provided, when the folded portion of the outer door is pulled out from the box to return the folded portion, the folded portion does not interfere with the precision device and the unpacking operation can be performed smoothly.

  In this invention, the fixing means may be an adhesive tape or a hook-and-loop fastener that is provided on at least one of the outer door and the inner door and fixes the outer door and the inner door to each other.

  A packaging box for precision equipment according to the present invention is a packaging box for precision equipment used for packaging precision equipment having a substantially cylindrical outer shape and a longer axial dimension than a radial dimension. It consists of an outer box that is housed in an up-and-down manner, and an inner material that is interposed between the outer box and the precision device, and both the outer box and the inner material have a cardboard-like thickness and cushioning properties. The outer box has a rectangular bottom surface portion and four side surface portions extending upward from each side of the bottom surface portion, and the side surfaces of these four surfaces are formed by bending one thin plate material. One of the two surfaces or two surfaces facing each other is configured as an outer door that can be laid down until its upper end is at the same height as the bottom surface, and two adjacent surfaces on both sides of the outer door. Doors that are folded inside the outer door and paired with each other on the side surface A pair of door members is provided, and the pair of door members constitutes an inner door that can be opened outwardly in a double-sided manner when the outer door is lying down. An upper lid is provided at the upper end to close the upper portion of the space surrounded by the bottom surface portion and the four side surface portions, and the inner material is a central plate portion overlaid on the bottom surface portion of the outer box, Two rising portions that rise upward from two opposite sides of the central plate portion and are overlapped on the inner side of the two side surfaces provided with the door member of the outer box, and the outer door and the inner At least one of the doors is provided with a fixing means that fixes the outer door and the inner door so that they can be separated from each other. Therefore, the door can be assembled with a small number of parts, and it has a high protection function for the precision equipment that is housed. Easy and precision equipment It can be taken out all and easily.

It is a disassembled perspective view of the packaging box for precision instruments concerning one Embodiment of this invention. It is a fracture front view of the packaging box for precision instruments. It is a fracture side view of the packaging box for precision instruments. It is an expanded view of the outer box of the packaging box for precision instruments. It is an expanded view of the inner side material of the packaging box for precision instruments. It is explanatory drawing of the operation | work which puts a precision instrument in the packaging box for the precision instruments. It is explanatory drawing of the procedure which takes out a precision instrument from the packaging box for the precision instruments. It is a fractured side view of the principal part of the packaging box for precision instruments. It is the top view which abbreviate | omitted a part of principal part of the packaging box for precision instruments. It is an expanded view of the example from which the outer box of the packaging box for precision devices differs. It is a fracture side view of a part of the outer box showing a different example of the fixing means. It is a perspective view of the conventional packaging box for precision instruments. It is a disassembled perspective view of the conventional different precision equipment packaging box. It is a perspective view of the packaging box for precision instruments of the examination example.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of a packaging box for precision equipment according to this embodiment. This precision equipment packaging box 1 is a packaging box for carrying a precision equipment 50, for example, a railcar axle bearing, whose outer shape is substantially cylindrical and whose axial dimension is longer than its radial dimension. Consists of an outer box 2 and an inner material 3. In addition, a vinyl protective bag 40 (FIGS. 2 and 3) for enclosing the precision device 50, an adhesive tape 41 (FIG. 7) for fixing the inner material 3 and the precision device 50, and a cushioning material 43 (FIG. 2, FIG. 2). 3), packing adhesive tape 44 (FIG. 2) and the like are used as necessary. These will be described later. When assembled, the precision instrument packaging box 1 has a rectangular parallelepiped shape as shown in the cross-sectional views of FIGS. 2 and 3. 2 is a cross-sectional view taken along the line III-III in FIG. 3, and FIG. 3 is a cross-sectional view taken along the line II-II in FIG.

  Both the outer box 2 and the inner member 3 are formed by bending a thin sheet material having cushioning properties, for example, a cardboard sheet. 4 shows a corrugated cardboard sheet 2S for the outer box, and FIG. 5 shows a corrugated cardboard sheet 3S for the inner material. The broken line in each figure is a fold line.

  As shown in the developed views of FIGS. 1 to 3 and 4, the outer box 2 includes a rectangular bottom surface portion 10 and four side surface portions 11 </ b> A extending upward (during assembly) from each side of the bottom surface portion 10. 11B, 11C, and 11D. The two side surfaces 11A and 11B facing each other among these four side surfaces 11A to 11D are configured as outer doors that can fall down until their upper ends are at the same height as the bottom surface 10. (Hereinafter, “side portions 11A and 11B” are referred to as “outer doors 11A and 11B”). In addition, door members 12 and 13 that are bent inwardly of the outer doors 11A and 11B and are paired with each other are provided on both side ends of the two side surfaces 11C and 11D adjacent to both sides of the outer doors 11A and 11B, respectively. . The pair of door members 12 and 13 constitute inner doors 14A and 14B that can be opened outwardly in a double door manner when the outer doors 11A and 11B are lying down.

  The dovetail recesses 15 and the projections 16 are provided alternately at the opposite edges of the door members 12 and 13. The concave portion 15 of the door member 12 and the convex portion 16 of the door member 13 have a corresponding positional relationship, and the convex portion 16 of the door member 12 and the concave portion 15 of the door member 13 have a corresponding positional relationship. By engaging the concave portion 15 and the convex portion 16 of the pair of door members 15 and 16 with each other, the inner doors 14A and 14B are held closed by the frictional resistance of the contact surfaces of the concave portion 15 and the convex portion 16. Since the concave portion 15 and the convex portion 16 have a dovetail shape, a wedge action works in a state where they are engaged with each other, and a large holding force is obtained.

  As fixing means for fixing the outer doors 11A and 11B and the inner doors 14A and 14B to be separable from each other, folded portions 18A and 18B that are folded back to the upper ends of the outer doors 11A and 11B via intermediate horizontal portions 17A and 17B. Is provided. The folded portions 18A and 18B are folded inward beyond the upper ends of the inner doors 14A and 14B, thereby fixing the outer doors 11A and 11B and the inner doors 14A and 14B in a combined state. At this time, the intermediate horizontal portions 17A and 17B are in a horizontal posture at positions above the inner doors 14A and 14B. A hook portion 18a projecting outward is provided at the tip of the folded portions 18A, 18B. By inserting the hook portion 18a into the slit 19 of the side surface portions 11C, 11D, the folded portions 18A, 18B are at the folded position. Be bound.

  The folded portions 18A and 18B of this embodiment are provided with a tip notch 20 having an arcuate edge at the tip. The front end cutout 20 is provided to avoid interference with the precision device 50 housed in the precision device packaging box 1 when the turn-back portions 18A and 18B are turned back. The radius of the arc of the tip notch 20 is a precision device so that interference between the precision device 50 and the turn-back portions 18A and 18B is avoided even when the folded portions 18A and 18B are inclined with respect to the precision device 50. It is larger than the radius of 50.

  Upper lids 21C and 21D are provided at the upper ends of the side surfaces 11C and 11D that are not outer doors, and close the upper part of the space surrounded by the bottom surface 10 and the four side surfaces 11A, 11B, 11C, and 11D. A handle hole 22 is formed in the upper part of the side surface parts 11C and 11D.

  As shown in the developed views of FIGS. 1 to 3 and FIG. 5, the inner member 3 includes a central plate portion 30 that is overlaid on the bottom surface portion 10 of the outer box 2 and two opposite sides of the central plate portion 30. It has two rising portions 31C and 31D that rise upward (during assembly) and overlap each other inside the side portions 11C and 11D that are not the outer doors. Furthermore, inner lids 32C and 32D that can be bent inward are provided at the tips of the rising portions 31C and 31D, respectively. A handle hole 33 is formed in each of the inner lids 32C and 32D. Further, side cutouts 34 having arcuate edges are provided on the upper portions on both sides of the rising portions 31C and 31D. The side cutouts 34 are for avoiding interference with the folded portions 18A and 18B when the folded portions 18A and 18B of the outer doors 11A and 11B are folded inside or returned. .

A method for packing the precision device 50 using the precision device packaging box 1 will be described.
First, the outer box 2 is assembled. That is, after the side surface portions 11C and 11D are erected with respect to the bottom surface portion 10, the inner doors 14A and 14B are closed and the outer doors 11A and 11B are closed. Inner door 14A, 14B is hold | maintained in the closed state by moderate holding force by meshing | combining the recessed part 15 and the convex part 16 of a pair of door members 12 and 13 mutually. Further, the outer doors 11A and 11B are joined to the side surface parts 11C and 11D by folding the folded parts 18A and 18B inwardly beyond the upper ends of the inner doors 14A and 14B, and inserting the hook parts 18a into the slits 19, respectively. The inner doors 14A and 14B are combined in an inseparable manner. With this assembly structure, the outer box 2 has high strength even though only one cardboard sheet 2S is assembled. The assembled outer box 2 can be carried by placing a hand on the handle hole 22.

  Next, a precision device 50 wrapped with a protective bag 40 made of vinyl or the like is placed on the central plate portion 30 of the inner member 3 placed at a position away from the outer box 2 so that the axial direction is vertically directed. Place. Then, the rising portions 31C and 31D of the inner member 3 are raised, and the packing material tape 41 and the like are wound around the rising portions 31C and 31D to fix the inner member 3 and the precision device 50. Using the handle holes 33 provided in the inner lids 32C and 32D, the inner member 3 is lifted together with the precision device 50 and placed in the outer box 2. At this time, the orientation of the inner member 3 is determined so that the rising portions 31C and 31D of the inner member 3 overlap the inner sides of the side portions 11C and 11D of the outer box 2.

  As shown in FIG. 6, a rope, a belt 42 or the like 42 is passed through the handle hole 33, or a hook (not shown) is hooked, and the precision device 50 is suspended together with the inner material 3 with a crane or the like. In this case, the precision instrument 50, which is a heavy object, does not have to be handled directly by the operator and is safe.

  In accordance with the size of the precision device 50, the cushioning material 43 that fills the gap between the precision device packaging box 1 and the precision device 50 is packed. The cushioning material 43 shown in FIGS. 2 and 3 fills the gap between the precision device 50 and the inner lids 32C and 32D, and is formed by bending corrugated cardboard. If necessary, a cushioning material (not shown) that fills the clearances around the four sides of the precision device 50 may be packed. After the cushioning material 43 is packed, the inner lids 32C and 32D and the upper lids 21C and 21D are closed, the butted portions of the upper lids 21C and 21D, and the joints between the upper lids 21C and 21D and the outer doors 11A and 11B are adhesive tape 44 (FIG. 2). ) To complete the packaging.

  The precision equipment packaging box 1 includes an outer box 2 and an inner material 3, and both the outer box 2 and the inner material 3 are formed by bending one cardboard sheet 2S, 3S. Moreover, the folded-back portions 18A and 18B are folded inward so that the outer doors 11A and 11B and the inner doors 14A and 14B are inseparably combined with each other, so that the precision instrument packaging box 1 is assembled. Kept. Therefore, a fastener such as an iron pin is not required for assembly. Therefore, the number of parts is small, and assembly / disassembly is easy. Furthermore, no dust other than corrugated paper is produced after dismantling, and it is easy to clean up.

  As shown in FIGS. 2 and 3, in a state where the precision device 50 is packed, all six outer surfaces of the precision device packaging box 1 whose outer shape is a rectangular parallelepiped shape have a double structure. That is, the outer doors 11A and 11B and the inner doors 14A and 14B overlap each other on the two side surfaces facing each other. The remaining two side surfaces facing each other overlap the side portions 11C and 11D of the outer box 2 and the rising portions 31C and 31D of the inner member 3. At the bottom, the bottom 10 of the outer box 2 and the central plate 30 of the inner member 3 overlap. Moreover, the upper lids 21C and 21D of the outer box 2 and the inner lids 32C and 32D of the inner member 3 overlap on the upper surface. As described above, since all of the six surfaces around the precision instrument 50 are double protected by the corrugated cardboard material having cushioning properties, the protection function for the precision instrument 50 accommodated therein is high.

  In the packed state, the rising portions 31C and 31D of the inner member 3 are pushed outward by the precision device 50, the buffer material 43, etc., and the handle holes 22 of the outer box 2 are closed from the inside by the rising portions 31C and 31D. Therefore, the sealing performance in the box is maintained and the precision instrument 50 is not adversely affected.

A method for taking out the precision instrument 50 from the precision instrument packaging box 1 will be described with reference to FIG. In FIG. 7, the protective bag 40 and the buffer material 43 are omitted.
In order to take out the precision instrument 50, first, the adhesive tape 44 (FIG. 2) connecting the upper lids 21C and 21D is peeled off, and the upper lids 21C and 21D and the inner lids 32C and 32D are removed as shown in FIG. open. Next, as shown in FIG. 7B, the folded-back portion 18A of either one of the outer doors 11A is pulled out from the box to return the folded-back so that the outer door 11A and the inner door 14B can be separated.

  FIG. 8 is an explanatory diagram of the operation of pulling out the folded portion 18A from the box. As shown in FIG. 5A, the folded portion 18A, in which the hook portion 18a is engaged with the slit 19 of the side surface portions 11C and 11D, is hooked up, for example, by hooking a finger on the notch 20 at the tip portion. The hook portion 18a and the slit 19 are disengaged due to the elastic deformation of the 18a. Further, when the folded portion 18A is pulled upward, the tip of the folded portion 18A is curved while accompanied by the rotating operation of the horizontal plate portion 17A and the falling operation of the outer door 18A as shown in FIGS. The folding part 18A is drawn out while drawing a trajectory. At this time, since the folded portion 18A passes through the side cutouts 34 provided on the side portions of the rising portions 31C and 31D of the inner member 3, the folded portion 18A does not interfere with the rising portions 31C and 31D, and smoothly The folded portion 18A can be pulled out. The same applies to the case where the folded portion 18A is folded at the time of assembly.

  Moreover, since the front-end | tip part notch 20 is provided in the folding | returning part 18A, when pulling out the folding | returning part 18A, as shown in FIG. 9, it can avoid that this folding | returning part 18A interferes with the precision instrument 50. In addition, since the folding | returning part 18A has elasticity, even if the folding | returning part 18A contacts the precision instrument 50 if it is a little, the folding | returning part 18A can be bent and pulled out. The front end notch 20 is provided when the precision device 50 has a long axial dimension and the folded portion 18A interferes with the upper portion of the precision device 50.

  When the precision device 50 has a short axial dimension and the folded portion 18A does not interfere with the precision device 50 even without the front end cutout 20, the front end cutout as in the corrugated cardboard sheet 2S for the outer box shown in FIG. Those without 20 may be used. In that case, the clearance above the precision device 50 is filled by adjusting the vertical thickness of the cushioning material 43. That is, the precision instrument packaging box 1 can be used for a plurality of precision instruments 50 having different axial dimensions by only a slight change in whether or not the tip notch 20 is provided in the folded portion 18A.

  After making the outer door 11A and the inner door 14A separable, the outer door 11A is laid down and opened as shown in FIG. Further, as shown in FIG. 7D, the inner door 14A is opened in a double-spread shape. Thereby, the side surface closed by the outer door 11A and the inner door 14A is opened. From the opened side surface, the precision instrument 50 inside is slid sideways and taken out. At that time, as shown in FIG. 7E, when the precision device 50 is slid on the inside material 3 so as to slide on the overturned outer door 11A, the precision device 50 can be taken out safely and easily. In some cases, only the precision device 50 may be slid out.

  In the above description, the case where the outer door 11A and the inner door 14A are opened and the precision device 50 is taken out in front of FIG. 7 is shown. However, the outer door 11B and the inner door 14B are opened and the precision device 50 is opened in the rear side in FIG. 50 may be taken out. Even in that case, similarly to the above, it is possible to simply unpack and remove the precision instrument 50 safely and easily.

In this embodiment, since the outer doors 11A and 11B and the inner doors 14A and 14B are provided on two surfaces facing each other on the four side surfaces, the precision device 50 can be taken out in two directions facing each other. Moreover, the flexibility of the layout in the take-out site of the precision instrument 50 is high. Further, the outer doors 11A, 11B and the inner doors 14A, 14B are provided on the two surfaces facing each other, and the folded portions 18A, 18B are folded back so that the outer doors 11A, 11B and the inner doors 14A, 14B cannot be separated from each other. The outer box 2 can be assembled without using a fixing metal fitting or the like.
In some cases, the outer door 11A (11B) and the inner door 14A (14B) may be provided on only one of the four side surfaces.

As a fixing means for fixing the outer doors 11A and 11B and the inner doors 14A and 14B so as not to be separated from each other, an adhesive tape or a hook-and-loop fastener may be used instead of the folded portions 18A and 18B of the above embodiment. For example, as shown in FIG. 11A, an adhesive tape 45 whose one end is a free end 45a is attached to the upper end of the inner door 14A (14B), and as shown in FIG. By sticking the free end 45a to the upper end of the upright outer door 11A (11B), the outer door 11A (11B) and the inner door 14A (14B) are fixed to each other. If the adhesive tape 45 is peeled off, the outer door 11A (11B) and the inner door 14A (14B) can be separated. The release paper 46 is attached to the free end 45a of the adhesive tape 45, and the release paper 46 is peeled off when the free end 45a is attached to the outer door 11A (11B).
When the fixing means is a hook-and-loop fastener, for example, one of the hook-and-loop fasteners of the pair of hook-and-loop fasteners and The other hook-and-loop fasteners are individually attached (not shown). Moreover, you may attach a double-sided adhesive tape to one of the surfaces which mutually oppose at the time of the assembly of outer door 11A (11B) and inner door 14A (14B) instead of a hook-and-loop fastener (not shown).

1 ... Packing box for precision equipment 2 ... Outer box 2S ... Cardboard sheet for outer box (thin plate)
3 ... Inner material 3S ... Corrugated sheet for inner material (thin plate)
10 ... bottom part 11A, 11B ... side part (outer door)
11C, 11D ... side face parts 12, 13 ... door member 15 ... concave part 16 ... convex part 18A, 18B ... folded part (fixing means)
20 ... tip end cutouts 21C and 21D ... upper lid 22 ... handle hole 30 ... center plate parts 31C and 31D ... rising part 32C and 32D ... inner lid 33 ... handle hole 34 ... side cutout 45 ... adhesive tape (fixing means)
50 ... Precision equipment

Claims (8)

It is a packaging box for precision equipment that is used for the packaging of precision equipment whose outer shape is substantially cylindrical and whose axial dimension is longer than the radial dimension,
It consists of an outer box that accommodates the precision instrument in an axial direction and an inner material interposed between the outer box and the precision instrument. Both the outer box and the inner material are cardboard-shaped. It is formed by bending one thin plate material having thickness and cushioning properties,
The outer box has a rectangular bottom surface portion and four side surface portions extending upward from each side of the bottom surface portion, and one of these four side surface portions or two surfaces facing each other are: The outer door is configured as an outer door that can be laid down until its upper end is at the same height as the bottom surface. The two side surfaces adjacent to both sides of the outer door are folded inwardly of the outer door. Each of the door members is provided, and the pair of door members constitutes an inner door that can be opened outwardly in a double-sided manner when the outer door is lying down, and is not the outer door among the four side surfaces. An upper lid is provided at the upper end of the side surface portion to close the upper portion of the space surrounded by the bottom surface portion and the four side surface portions,
The inner material rises upward from two opposite sides of the central plate portion that is superimposed on the bottom surface portion of the outer box, and the two surfaces on which the door member of the outer box is provided. Two rising parts that are overlapped inside the side part of the
A packaging box for precision equipment, characterized in that at least one of the outer door and the inner door is provided with a fixing means for detachably fixing the outer door and the inner door.   The packaging box for precision equipment according to claim 1, wherein the fixing means is configured to fold back a folded portion provided at an upper end of the outer door inward beyond the upper end of the inner door, thereby Precision equipment packaging box with doors combined with each other.   3. The precision instrument packaging box according to claim 1 or 2, wherein an inner lid that can be bent inward is provided at the tip of the rising portion of the inner member, and a handle hole is formed in each inner lid. Packing box.   The precision equipment packaging box according to any one of claims 1 to 3, wherein the pair of door members are formed by engaging the dovetail recesses and projections with each other, thereby A packaging box for precision equipment that holds the inner door closed by the frictional resistance of the contact surface.   5. The precision equipment packaging box according to claim 1, wherein when the folded portion is folded inward or returned to the side of the rising portion, the folded portion interferes with the folded portion. A precision equipment packaging box with side cutouts to avoid this.   6. The precision instrument packaging box according to claim 1, wherein a handle hole that is blocked from the inside by the rising portion of the inner member is formed on a side surface portion of the outer box that is not the outer door. 7. A packaging box for precision equipment.   The packaging box for precision equipment according to any one of claims 1 to 6, wherein the folded portion is housed inside the folded portion of the inner material when the folded portion is returned. A packaging box for precision equipment provided with a notch at the tip for avoiding interference with the precision equipment.   2. The precision instrument packaging box according to claim 1, wherein the fixing means is an adhesive tape or a hook-and-loop fastener that is provided on at least one of the outer door and the inner door and fixes the outer door and the inner door to each other. Equipment packaging box.

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