WO2015076329A1

WO2015076329A1 - Packaging box for precision instrument

Info

Publication number: WO2015076329A1
Application number: PCT/JP2014/080749
Authority: WO
Inventors: 山田潔; 児玉知大; 米沢正郎; 山下真衣; 小泉昭智
Original assignee: Ntn株式会社; 山田潔; 児玉知大; 米沢正郎; 山下真衣; 小泉昭智
Priority date: 2013-11-25
Filing date: 2014-11-20
Publication date: 2015-05-28
Also published as: JP2015101367A

Abstract

　Provided is a packaging box (1) for a precision instrument, it being possible for said box to be assembled with a small number of components; said box being highly effective at protecting a precision instrument contained therein, and simple to assemble and take apart, while also allowing the precision instrument (50) to be smoothly and easily removed. This packaging box (1) for a precision instrument comprises an outer box (2) and an inner-side member (3). The outer box and inner-side member have the thickness and cushioning of corrugated cardboard. The outer box and the inner-side member are formed by folding one thin board member. The outer box (2) has a rectangular bottom surface part (10), four side surface parts (11A, 11C), and a top lid (21C, 21D). Two of the side surface parts (11A) are configured as outer doors that can be laid down, double inner doors (14A, 14B) being provided on the inner side thereof. Folding foldback parts (18A, 18B) back toward the inside allows the side surface parts (11A) and the inner doors (14A, 14B) to be kept from separating from each other. The inner-side member (3) has a center board part (30) overlapped on the bottom surface part (10), and two upright parts (31C, 31D) overlapped on the inside of the side surface parts (11C).

Description

Packing box for precision equipment

Related applications

This application claims the priority of Japanese Patent Application No. 2013-242604 filed on Nov. 25, 2013, the entirety of which is cited as a part of this application.

The present invention relates to a packaging box for precision equipment used for packaging precision equipment such as bearings whose outer shape is substantially cylindrical and whose axial dimension is longer than 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 accommodates the precision device 50, a rectangular parallelepiped shape in which the upper lid 60 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.

JP-A-63-317480 Japanese Utility Model Publication No. 64-011921 JP 2003-226325 A

木 Even if multiple precision instruments are packed in a wooden box, the cost per precision instrument is higher than that of a corrugated paper 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 in and out of precision equipment. The conventional packaging box made of corrugated cardboard as shown in FIGS. 12 and 13 is a system in which a heavy precision instrument is lifted and taken out, so that it cannot be taken out smoothly. 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 some cases, the precision box inside is pulled down by dragging the packing box, but this method has an unfavorable problem in handling precision equipment (considering PL in the US).

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 problem, as shown in FIG. 14, the packaging box is composed of 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 outer periphery of the covered upper box 63 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 reused for collecting the old precision instrument. Further, when the upper box 63 is pulled upward, the precision instrument 50 that is a heavy object may fall down.

The object of the present invention is to provide a precision instrument packaging box that 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 smoothly 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 rise upward from two opposite sides of the central plate part, Two rising portions that are overlapped on the inner side of the two side surfaces provided with the door member, and at least one of the outer door and the inner door can be separated from each other. A fixing means for fixing is provided.

According to this configuration, in the state in which the precision device is packed, the precision device packaging box has 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 precision equipment, first open the top cover. 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, the precision instrument can be smoothly and easily taken out by sliding on the fallen outer door and moving the precision instrument.

The packaging box for precision equipment having this configuration is composed of an outer box and an inner material, and both the outer box and the inner material are formed by bending one thin plate material. 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 may be configured to do so. 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, an inner lid that can be bent inward is provided at the tip of the rising portion of the inner material, and a handle hole may be 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, and it can be smoothly stored in the outer box.

In this invention, the pair of door members hold the inner door in a closed state by frictional resistance of the contact surfaces of the concave and convex portions by engaging the dovetail concave and convex portions with each other. There may be. 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 this invention, the side portion of the rising portion may be provided with a side notch for avoiding interference with the folded portion when the folded portion is folded inward or when the folded portion is returned. good. 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 the present invention, a side hole that is not the outer door of the outer box may be provided with a handle hole that is blocked from the inner side by the rising portion of the inner member. 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. It may be a thing. When the front end cutout is provided, when the folded portion of the outer door is pulled out of the box and returned, the folded portion does not interfere with precision equipment and the unpacking operation can be performed smoothly.

In the present 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.

Any combination of at least two configurations disclosed in the claims and / or the specification and / or the drawings is included in the present invention. In particular, any combination of two or more of each claim in the claims is included in the invention.

The present invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings. However, the embodiments and drawings are for illustration and description only and should not be used to define the scope of the present invention. The scope of the invention is defined by the appended claims. In the accompanying drawings, the same reference numerals in a plurality of drawings indicate the same or corresponding parts.
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 sectional views of FIGS. 2 and 3. 2 is a sectional view taken along the line II-II in FIG. 3, and FIG. 3 is a sectional view taken along the line III-III in FIG.

The outer box 2 and the inner material 3 are both formed by bending a thin sheet material having cushioning properties, for example, a cardboard sheet. 4 shows the unfolded cardboard sheet 2S for the outer box 2, and FIG. 5 shows the unfolded cardboard sheet 3S for the inner material. The broken line in each figure is a folding line at the time of assembly.

As shown in the development views of FIGS. 1 to 3 and FIG. 4, the outer box 2 includes a rectangular bottom surface portion 10 and four side surface portions 11A extending upward (at the time of assembly) from each side of the bottom surface portion 10. 11B, 11C, and 11D. Of the four side surfaces 11A to 11D, the two

side surface portions

11A and 11B facing each other are configured as outer doors that can fall down until their upper ends are at the same height as the bottom surface portion 10. (Hereinafter, “

side portions

11A and 11B” may be referred to as “

outer doors

11A and 11B”). In addition,

door members

12 and 13 that are bent inside 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 that face each other on both sides of the

outer doors

11A and 11B. Yes. 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-shaped concave portions 15 and the convex portions 16 are provided alternately on 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

12 and 13 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 so as to be separable from each other, as shown in FIG. 4, at the upper ends of the

outer doors

11A and 11B, through the intermediate

horizontal portions

17A and 17B, Folded

portions

18A and 18B are provided. As shown in FIG. 3, the folded

portions

18A and 18B are folded inward beyond the upper ends of the

inner doors

14A and 14B, so that the

outer doors

11A and 11B and the

inner doors

14A and 14B are combined with each other. Fix it. At this time, the intermediate

horizontal portions

17A and 17B are in a horizontal posture at positions above the

inner doors

14A and 14B. As shown in FIG. 4, hook portions 18a projecting outward are provided at the tips of the folded

portions

18A and 18B, and the folded portions are inserted by inserting the hook portions 18a into the slits 19 of the

side surface portions

11C and 11D. 18A and 18B are restrained at the folding position.

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 development views of FIGS. 1 to 3 and 5, the inner member 3 is formed from a central plate portion 30 that is superimposed 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 of 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 raising the

side surface portions

11C and 11D with respect to the bottom surface portion 10 of the unfolded corrugated cardboard sheet 2S shown in FIG. 4, the

inner doors

14A and 14B are closed and the

outer doors

11A and 11B are raised. close.

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 folded back inwardly over the upper ends of the

inner doors

14A and 14B, and the hook portions 18a are inserted into the slits 19 of the side surfaces 11C and 11D. 11D and combined inseparably with respect to the

inner doors

14A and 14B. 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 instrument 50 packaged in a protective bag 40 (FIGS. 2 and 3) made of vinyl or the like is placed on the central plate 30 of the inner member 3 placed at a position away from the outer box 2 in the axial direction. Place it so that is facing up and down. Then, the rising

parts

31C and 31D of the inner member 3 are raised, and as shown in FIG. 6, the adhesive tape 41 for packing is wound around the rising

parts

31C and 31D, and the inner member 3 and the precision device 50 are attached. Fix it. 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.

When the inner member 3 to which the precision machine 50 is fixed is accommodated in the outer box 2, as shown in FIG. 6, a rope or belt 42 is passed through the handle hole 33, or a hook (not shown) is inserted. By hooking and hanging the precision device 50 together with the inner material 3 with a crane or the like and putting it in the outer box 2, the precision device 50, which is a heavy object, does not have to be handled directly by the operator and can be packed smoothly. it can.

According to the size of the precision device 50, the cushioning material 43 (FIGS. 2 and 3) 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 packaging box 1 for precision equipment is composed of 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 the state where the precision instrument 50 is packed, all six outer surfaces of the precision instrument packaging box 1 whose outer shape is a rectangular parallelepiped 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 the six surfaces around the precision device 50 are protected by the double structure by the corrugated cardboard material having cushioning properties, the protection function for the precision device 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 device 50 is stably held.

The method for taking out the precision device 50 from the precision device 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) that joins the

upper lids

21C and 21D is peeled off, and the

upper lids

21C and 21D and the middle lid are removed as in the first stage shown in FIG. Open the

lids

32C and 32D. Next, as in the second stage shown in FIG. 7 (B), the folded portion 18A of either one of the outer doors 11A is pulled out from the box to return the folded portion, and the outer door 11A and the inner door 14A located inside the outer door 11A. Can be separated.

After making the outer door 11A and the inner door 14A separable, the outer door 11A is laid down and opened as in the third stage shown in FIG. 7C. Further, as in the fourth stage shown in FIG. 7 (D), the

door members

12 and 13 constituting the inner door 14A are 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 in the fifth stage shown in FIG. 7E, when the precision device 50 is slid along the inner material 3 so as to slide on the fallen outer door 11A, the precision device 50 is smoothly and easily removed. be able to. In some cases, the adhesive tape 41 may be cut or removed, and 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 to the near side of FIG. 7 has been shown. However, the outer door 11B and the inner door 14B ( 7 may be opened, and the precision device 50 may be taken out from the back side of FIG. Even in that case, similarly to the above, it is possible to easily unpack and remove the precision instrument 50 smoothly and easily.

FIG. 8 is an explanatory diagram of an operation procedure for pulling out the folded portion 18A from the box when the precision apparatus 50 is taken out from the box 1 for precision equipment. As shown in the procedure 1 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 pulled up with a finger on the notch 20 at the tip, for example. Thus, the hook portion 18a and the slit 19 are disengaged due to the elastic deformation of the hook portion 18a. Further, when the folded portion 18A is pulled upward, the folded portion is accompanied by the rotation operation of the horizontal plate portion 17A and the falling operation of the outer door 18A as in

steps

2 and 3 shown in FIGS. The folded portion 18A is drawn with the tip of 18A drawing a curved locus. 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.

Further, since the tip notch 20 is provided in the folded portion 18A, it is possible to avoid the folded portion 18A from interfering with the precision device 50 when the folded portion 18A is pulled out as shown in FIG. 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 axial dimension of the precision device 50 is short and the folded portion 18A does not interfere with the precision device 50 even without the tip notch 20, the tip of the corrugated cardboard sheet 2S1 for the outer box shown in FIG. You may use what does not have the part notch 20. FIG. In that case, the clearance above the precision device 50 is filled by adjusting the vertical thickness of the cushioning material 43. In other words, the precision instrument packaging box 1 can handle packaging of a plurality of types 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. it can.

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 from 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 an example of a different fixing means for fixing the

outer doors

11A and 11B and the

inner doors

14A and 14B to each other in an inseparable manner, 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. The free end 45a is folded back to the outer door 11A (11B) side and attached to the upper end of the standing outer door 11A (11B), thereby fixing the outer door 11A (11B) and the inner door 14A (14B) 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 adhesive tape 45 has a release paper 46 attached to a free end 45a thereof, 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 on the surfaces facing each other when the outer door 11A (11B) and the inner door 14A (14B) are assembled, 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).

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily assume various changes and modifications within the obvious scope by looking at the present specification. Accordingly, such changes and modifications are to be construed as within the scope of the invention as defined by the appended claims.

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 notches

21C and 21D ... upper lid 22 ... handle hole 30 ...

center plate parts

31C and 31D ... rising

parts

32C and 32D ... middle lid 33 ... handle hole 34 ... side notch 45 ... adhesive tape (fixing means)
50 ... Precision equipment

Claims

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,
One of these four side 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,
Two side members adjacent to both sides of the outer door are provided with door members that are folded inside the outer door and paired with each other,
With the pair of door members, an inner door that can be opened outwardly in a double-sided manner in a state where the outer door is lying down,
An upper lid that closes an upper portion of the space surrounded by the bottom surface portion and the four side surface portions is provided at the upper end of the side surface portion that is not the outer door among 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 precision instrument packaging box in which 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.