WO2015097489A1 - Cushioning packaging material - Google Patents

Cushioning packaging material Download PDF

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Publication number
WO2015097489A1
WO2015097489A1 PCT/IB2013/002868 IB2013002868W WO2015097489A1 WO 2015097489 A1 WO2015097489 A1 WO 2015097489A1 IB 2013002868 W IB2013002868 W IB 2013002868W WO 2015097489 A1 WO2015097489 A1 WO 2015097489A1
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WO
WIPO (PCT)
Prior art keywords
packaging material
cushioning
buffer
packaging
box
Prior art date
Application number
PCT/IB2013/002868
Other languages
French (fr)
Japanese (ja)
Inventor
坂本　勝弘
Original Assignee
積水化成品工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 積水化成品工業株式会社 filed Critical 積水化成品工業株式会社
Priority to PCT/IB2013/002868 priority Critical patent/WO2015097489A1/en
Publication of WO2015097489A1 publication Critical patent/WO2015097489A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/107—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material
    • B65D81/113—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using blocks of shock-absorbing material of a shape specially adapted to accommodate contents

Definitions

  • the present invention relates to a buffer wrapping material used to protect a packaged article when a substrate storage box containing a semiconductor wafer or the like and other packaged articles are stored and packaged in an outer box. .
  • the cushioning packaging material used for the packaging is provided with a pair of upper and lower packaging materials for fitting and holding the upper and lower parts of the object to be packaged such as the substrate storage box, but the impact applied to the outer surface of the outer packaging box.
  • angular cushioning protrusions that project radially are provided on the outer peripheral surfaces of the upper and lower packaging materials, which are in contact with and supported by the inner surface of the cardboard outer packaging box.
  • Patent Document 1 a buffering effect is obtained by elastic deformation of the protrusions against an external force on the outer surface of the lens.
  • Patent Document 2 it is also proposed to provide a projection that protrudes in the side surface extension direction at the corner of the rectangular main body so as to have a space between the outer box and the same projection provided on the outer surface.
  • the protrusion provided on the outer side surface of the main body is supported by being in contact with the outer box, and the portion other than the protrusion is between the main body and the outer box. Since there is a space in between and there is no support by protrusions, it is vulnerable to external impact and pressure, and it is easy to dent in the outer box due to collision with other objects, especially the bottom side of the outer box Deformation such as large depressions at the corners and ridges is likely to occur.
  • the present invention has been made in order to solve the above-described problem, and the ridges and corners of the outer box can also exhibit the support effect and buffering effect by the buffer protrusions well, It is an object of the present invention to provide a shock-absorbing packaging material that does not cause a large dent or breakage at a corner.
  • the present invention that solves the above-mentioned problems is a pair of upper and lower packaging materials each formed of a synthetic resin foam, and a lower packaging material having a storage recess into which the lower part of the package can be inserted on the upper surface side of the planar rectangular main body part;
  • An upper wrapping material having a storage recess capable of inserting the upper portion of the packaged object on the lower surface side of the flat rectangular main body, and the outer surfaces of the four side walls surrounding the storage recess of the lower wrapping material and the upper wrapping material, respectively.
  • a cushioning packaging material provided with cushioning projections for side portions that protrude outward and abut on the inner surface of the outer packaging box, wherein the lower packaging material and the upper packaging material each have a corner portion where the outer side surfaces of the side walls intersect.
  • the outer surface is provided with buffer projections for ridges that protrude outward and obliquely with respect to the side wall and abut against or are close to the inner surfaces of both sides of the ridge in the side surface of the exterior box.
  • at least a pair of opposing side walls of the lower wrapping material or the upper wrapping material is provided with an intermediate protruding portion that protrudes outward between the buffer projections for adjacent side portions.
  • the lower part of an object to be packaged such as a substrate storage box is inserted into the storage recess of the lower packaging material, the upper part is inserted and held in the storage recess of the upper packaging material, and stored in the outer box.
  • the side buffer projections on the outer side walls of the lower packaging material and the upper packaging material are supported by being in contact with the inner surface of the exterior box, and the cushion projections for the ridge portion are both inner surfaces of the ridge portion of the exterior box. Therefore, when external force is applied to the exterior box due to contact with or against other objects, the buffer protrusions are elastically deformed to absorb and reduce the impact.
  • the ridge portion of the outer box becomes strong against external pressure, and the ridge portion or the corner portion is not easily dented or damaged even when it is dropped in an oblique direction, for example.
  • the buffer projections at both ends are compressed and deformed, by providing intermediate projections between the projections at both ends, it is possible to prevent the buffer material from being greatly damaged and separated due to the impact when the ridge is dropped.
  • the packaged item can be protected.
  • the bottom receiving lower surface of the lower packaging material has a bottom receiving convex portion that comes into contact with the bottom of the outer packaging box
  • the upper packaging material has a top receiving portion that comes into contact with the top of the outer packaging box.
  • Each of the lower packaging material and the upper packaging material has at least a ridge cushioning protrusion extending to the same plane position as the bottom receiving convex portion or the top receiving convex portion. It is preferable that the outer box is provided so as to be in contact with the bottom inner surface or the top inner surface.
  • the end part of the extended buffering projection serves to support the ridge part and corner part of the exterior box,
  • the ridges and corners of the outer box can be satisfactorily prevented from being dented.
  • an intermediate projecting portion projecting outward from the bottom portion of the lower packaging material is provided, and the dimension thereof is for the side portion whose length in the direction perpendicular to the side wall is at both ends. Since it is shorter than the end face of the buffer projection, even if the side buffer projection is compressed and deformed by external pressure or the like, the intermediate buffer projection comes into contact with the object to be packaged, and the three buffer projections provide strong elasticity.
  • the object to be packaged is supported by force, and the object to be packaged can be stably held while suppressing excessive deformation of the buffer protrusion.
  • the bottom cushioning protrusions at the bottom corners of the bottom cushioning projections and the side cushioning projections for the side portions close to the ridges of the lower packaging material It can be formed continuously. Furthermore, at least the top end side of the cushioning projection for the ridge portion in the upper packaging material is formed continuously with the four corner portions of the top surface of the top portion or the convex portions for receiving the top portion. You can also This increases the contact area with the bottom and top of the exterior box by the convex part for receiving the bottom part or the convex part for receiving the top part, so that a stable support state can be maintained, and the ridges and corners of the exterior box are recessed. The effect of prevention can be further enhanced.
  • At least the end surface on the bottom side of the cushioning projection for the ridge portion in the lower packaging material and the end surface on the top side of at least the cushioning projection for the ridge portion in the upper packaging material are respectively chamfered obliquely. What is formed is preferable. As a result, when a strong force acts on the ridges and corners of the outer box to cause crushing, the outer box is first crushed to reduce the impact, and a strong force acts directly on the buffer projection part. Can be prevented.
  • the intermediate protrusions formed on the lower packaging material or the upper packaging material may be extended along the side wall to the lower surface of the lower packaging material or the upper surface of the upper packaging material, respectively.
  • the intermediate protrusion extended on the lower surface of the lower packaging material or the upper surface of the upper packaging material is more than the convex portion for receiving the bottom portion on the lower surface of the lower packaging material or the convex portion for receiving the top plate on the upper surface of the upper packaging material. It can also be formed low.
  • the intermediate protrusions formed on the pair of side walls may be continuously formed integrally on the lower surface of the lower packaging material or the upper surface of the upper packaging material. . Also in this case, it is possible to prevent a strong force from acting directly on the buffer protrusion when the ridge or corner of the outer box is crushed.
  • the cushioning projections for the ridges of the upper and lower packaging materials are supported in contact with or in close proximity to the inner surfaces of the ridges on both sides in the packaging state.
  • the ridges and corners of the outer box are not easily overly dented or damaged, It does not become unstable when sitting down or stacking, has a good appearance, does not deteriorate the product image, and does not cause anxiety to the user.
  • the buffer packaging material A1 of the present embodiment is made of a synthetic resin foam (for example, an in-mold foam molded body of expandable beads) having a buffering effect.
  • An upper wrapping material 1 and a lower wrapping material 2 that are paired vertically are provided.
  • These packaging materials can be formed from any foamed resin molded body, but are preferably foamed molded bodies of thermoplastic resin.
  • thermoplastic resins polystyrene resins, polyolefin resins (eg, polypropylene resins, polyethylene resins), polyester resins (eg, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate), polycarbonate resins, polylactic acid resins
  • thermoplastic resins polystyrene resins, polyolefin resins (eg, polypropylene resins, polyethylene resins), polyester resins (eg, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate), polycarbonate resins, polylactic acid resins
  • a composite resin containing polystyrene and polyethylene it is preferable to use a composite resin containing polystyrene and polyethylene.
  • the foaming ratio of the foam is preferably 30 to 100 times.
  • the package to be packaged by the buffer wrapping material A1 of the present invention is, for example, a specially rigid plastic substrate that can hold and store substrates such as semiconductor wafers in a parallel state at regular intervals.
  • the storage box B is usually a flat square having a lower box body b1 and an upper lid b2 that can be attached to the lower box body, and rounded corners.
  • the upper side and the lower side are shown in a simplified manner.
  • the cushioning packaging material A1 of the present invention comprising the upper packaging material 1 and the lower packaging material 2 is used for housing and packaging the substrate storage box B in a cardboard outer packaging box C, and has the following configuration. It has.
  • the lower part of the planar rectangular object B is inserted into the upper surface side of the planar rectangular main body portion 21 and held so as not to rattle in the fitted state.
  • a rectangular storage recess 22 is provided.
  • Reference numeral 23 in FIG. 1 denotes a bottom portion of the main body portion 21, and a bottom receiving protrusion that abuts against the bottom portion c ⁇ b> 2 of the outer packaging box C in a packaged state housed in the outer packaging box C made of cardboard.
  • a portion 24 is provided so that a space can be held between the outer case C and the exterior box C.
  • four protrusions 24 are provided at the four corners of the bottom lower surface 23a with a predetermined interval on the front, rear, left and right of the bottom lower surface 23a, for example, as shown in FIG.
  • the storage recess 22 includes a recess b1 on the four sides of the lower part of the substrate storage box B on the inner side in the circumferential direction (the length direction of the side of the main body) of the four side walls 25 surrounding the storage recess 22. -1 and b1-2 are provided. In the case of FIG. 1, the central portion of each side wall 25 is dropped to form the convex portion 26.
  • Each side wall 25 surrounding the storage recess 22 is provided with a side buffer protrusion 27 that protrudes outwardly in a direction perpendicular to the side wall and abuts against the inner surface of the side wall of the outer packaging box C made of cardboard.
  • the buffer protrusions 27 are located at a corner portion in the plane of the main body portion 21 at intervals in the circumferential direction of each side wall outer surface, that is, at a position close to a corner portion 28 where each side wall outer surface intersects. It is provided at a location or more.
  • a required space corresponding to the protruding height of the buffer protrusion 27 can be held between the outer surface of the side wall 25 and the inner surface of the side of the exterior box C.
  • the corner portions 28 where the outer surfaces of the side walls 25 intersect with each other are projected outwardly obliquely with respect to the side walls and are ridged by the side surfaces of the exterior box C.
  • Cushion projections 29 for the ridge portion that are in contact with or close to the inner surfaces of both sides of the outer wall of the outer packaging box C are provided, so that the ridge portion by the side surface close to the bottom portion C2 of the outer packaging box C can be supported from the inside. It is formed as follows.
  • the ridge cushioning protrusion 29 may protrude only to the side of the main body 21, but in the case of this embodiment, the end on the bottom 23 side is the same as the protrusion 24 for receiving the bottom. Further, the extended end is formed continuously with the bottom receiving projections 24 at or near the four corners of the bottom lower surface 23a, and the buffer protrusion 29 is formed at the bottom. It is provided so as to fulfill the role of receiving the bottom portion 23 together with the receiving convex portion 24.
  • the end portion on the bottom 23 side is also flush with the convex portion 24 for the buffer projection 27 for the side portion close to the corner portion 28 of the main body portion 21 of the lower packaging material 2. It extends to the position and is continuously formed on the bottom convex portion 24 of the bottom lower surface 23a.
  • the end surface (lower surface) 29a on the bottom side of the buffer projections 29 for the ridges and the buffer projections 27 for the side portions is formed obliquely in a chamfered shape so as to be positioned higher toward the protruding tip side, Continuing from the convex portion 24, in the packaged state accommodated in the outer box C, a triangular shape is formed inside the ridge between the bottom C2 and the side C3 of the outer box C and inside the corner. A small gap S2 can be retained.
  • the outer side portions of the side walls 25 surrounding the storage recesses 22 are respectively spaced outwardly.
  • Intermediate projections 30 are provided to project in a direction perpendicular to the side wall 25.
  • the intermediate protrusion 30 may protrude only to the side of the main body 21, but in this embodiment, the end on the bottom 23 side protrudes vertically from the lower surface of the main body 21 to the lower surface.
  • Each of the intermediate protrusions 30 is continuously and integrally formed on the bottom lower surface of the main body up to the other opposite side. That is, the intermediate protrusion 30 has a substantially cross shape in plan view at the bottom of the main body.
  • the intermediate protrusion 30 projects outside the main body 21 in a plan view of the buffer protrusion 27 for the side portion and the buffer protrusion 29 for the ridge portion in a plan view. It is shorter than the dimension to the position where The intermediate protrusion 30 is formed lower than the protrusion of the bottom receiving convex portion 24 formed on the bottom lower surface 23a.
  • the intermediate protrusion 30 acts as a further buffer protrusion, that is, three buffer protrusions, and can support the object to be packaged with a strong elastic force. Therefore, it is possible to stably hold the packaged object while suppressing excessive deformation of the buffer protrusion.
  • the upper packaging material 1 is not shown in the plan view and the bottom view, it is basically symmetrical with the lower packaging material 2 in the vertical direction.
  • a rectangular storage recess 12 that can be held so as not to cause rattling in the fitted state by inserting the upper part of the flat rectangular object B to be packaged b2.
  • a plurality of convex portions 14 for receiving the top portion that come into contact with the top portion C1 of the exterior box C in the packaged state of the exterior box C made of cardboard. are provided at the four corners of the top surface 13a, for example, as shown in FIG.
  • the storage recess 12 does not have a configuration corresponding to the projection 26 in the lower packaging material 2 and is formed so that the upper portion of the substrate storage box B can be fitted.
  • a buffering protrusion 17 for a side portion that protrudes outward and abuts against the inner surface of the outer packaging box C is provided on the outer surface of each side wall in the same manner as the lower packaging material 2. It is provided at two or more locations near the corner portion 18 where the side walls 15 intersect with each other at intervals in the circumferential direction, and between the outer surface of the side walls 15 and the inner surface of the exterior box C, A required space corresponding to the protruding height of the buffer protrusion 17 can be held.
  • the corner portion 18 protrudes obliquely outward with respect to the side wall and abuts or slightly touches both inner surfaces of the ridge portion by the side surface portion of the exterior box C.
  • a buffer projection 19 for a ridge portion adjacent to each other with a gap is provided.
  • the ridge cushioning protrusion 19 has an end on the top portion side extended to the same plane position as the convex portion 14 for receiving the top portion, and the extended end portion has It is formed continuously with the bottom receiving convex portions 14 at or near the four corners of the top surface 13a so that the buffer projection 19 also serves to receive the bottom 13 together with the bottom receiving convex portions 14. Is provided.
  • the end portion on the top portion 23 side is the same as the convex portion 14 for the buffer projection 17 for the side portion close to the corner portion 18 of the main body portion 11 of the upper packaging material 1. It extends to a planar position and is continuously formed on the top convex portion 14 of the top top surface 13a.
  • the upper wrapping material 1 is also formed obliquely so that the top side end surfaces (upper surfaces) 19a of the ridge cushioning protrusions 19 and the side buffering protrusions 17 are located downward toward the protruding tip side. Then, in the packaged state that is continuous with the convex portion 14 and accommodated in the exterior box C, the inside of the ridge between the top portion C1 and the side surface portion C3 of the exterior box C, and the corner portion It becomes possible to have a small triangular gap S1 inside.
  • the outer side is perpendicular to the side walls 15.
  • An intermediate protrusion 30 protruding in the direction is provided.
  • the intermediate protrusion 30 has an end on the upper part 13 side protruding in a vertical direction from the upper surface of the main body 11 to the lower surface.
  • the intermediate protrusions 30 are continuously and integrally formed on the upper upper and lower surfaces of the main body 11 over the other opposing sides. That is, the intermediate protrusion 30 has a substantially cross shape in plan view at the bottom of the upper surface of the main body.
  • the intermediate protrusion 30 projects to the outside of the main body 11 in a plan view of the buffer protrusion 17 for the side portion and the buffer protrusion 19 for the ridge portion in a plan view. It is shorter than the dimension to the position where The intermediate protrusion 30 is formed lower than the protrusion of the upper receiving convex portion 14 formed on the upper upper surface 13a.
  • the buffer protrusions (17, 19) at both ends or the upper receiving protrusion 14 are compressed and deformed by the design of such a shape, the buffer protrusions 30 at the intermediate part come into contact with the article to be packaged at three locations. It becomes a buffer protrusion and can support the package with strong elastic force. Therefore, it is possible to stably hold the packaged object while suppressing excessive deformation of the buffer protrusion.
  • the buffer protrusion 17 for the side of the upper packaging material 1 and the buffer protrusion 19 for the ridge, and the buffer protrusion 27 for the side of the lower packaging material 2 and the buffer protrusion 29 for the ridge are as follows: As shown in FIG. 1, it has a flat trapezoidal shape, and can be implemented in various forms such as a prismatic shape, a cylindrical shape, or a hemispherical shape, in addition to a protrusion extending in a rib shape in the vertical direction.
  • the shape of the intermediate protrusion 30 can be implemented in various forms such as a columnar shape, a hemispherical shape, and a trapezoidal shape.
  • the lower part of the object B to be packaged B that stores the wafer is defined by the storage recess 22 of the lower packaging material 2. Inserted and held in a fitted state.
  • the lower packaging material 2 is set on the bottom of the outer packaging box C, and the lower portion of the substrate storage box B is stored in the storage recess 22 of the lower packaging material 2 from above and held in a fitted state.
  • the upper packaging material 1 is placed on the upper portion of the substrate storage box B, and the upper portion of the substrate storage box B is held in a fitted state in the storage recess 12 provided on the lower surface side of the upper packaging material 1. In this way, the flap which becomes the top part C1 of the upper part of the exterior box C is closed and wrapped.
  • the upper and lower parts of the flat rectangular article B are received and fitted in a fitted state from the upper packaging material 1 and the lower packaging material 2, respectively, and are stably held.
  • the side cushioning protrusions 27 and 17 that the lower packaging material 2 and the upper packaging material 1 of the cushioning packaging material A1 respectively have on the side wall outer surfaces of the main body portions 21 and 11 are in contact with the inner side surface of the outer box C.
  • the buffer projections 29 and 19 for the ridge portion are in contact with or close to the inner surfaces of both sides of the ridge portion of the exterior box C. Therefore, when an external force or an external impact is applied to the outer box C during handling in transportation and transportation, the side buffer projections 27 and 17 and the ridge buffer projections 29 and 19 are elastically deformed. Can alleviate the impact.
  • the bottom of the outer box C and the ridges near the top are supported by the buffer projections 29 and 19 for the ridges, and the corners or the like do not have a large space as in the prior art.
  • the bottom or top end of the ridge cushioning protrusions 29 and 19 of the lower packaging material 2 and the upper packaging material 1 is the same as the bottom receiving convex portion 24 or the top receiving convex portion 14.
  • the inside of the ridge portion and the corner portion between the bottom portion and the side surface portion of the exterior box C is also buffered. It will be supported by the protrusions 29 and 19, and it can be prevented that large dent deformation occurs at the ridges on the four sides and the corners of the four corners of the bottom part C2 and the top part C1 of the outer box C, and the shape retention of the packaging state can be prevented.
  • the protection of the substrate storage box B that is the packaged object can be well achieved.
  • the size of the intermediate projection 30 (the length in the direction perpendicular to the side wall) provided between the buffer projections 27 at both ends adjacent to each other on the bottom surface of the main body portion 21 is set as the buffer projection for the side portion.
  • 27 and the projections 29 on the ridges are designed to be shorter than the dimension (length) projecting outside, even if the cushioning projections 27 at both ends are compressed and deformed due to the impact when the ridges are dropped. Since the intermediate projection 30 at the intermediate portion is in contact with the package, the package can be stably held while suppressing excessive deformation of the buffer projections (27, 29).
  • the intermediate protrusion 30 has a cross shape extending from one side to the bottom of the main body portion 21 of the lower packaging material 2, but the present invention is not limited to this embodiment. I can't. That is, it is necessary to change the arrangement of the intermediate protrusions 30 depending on the load on the shape of the substrate storage box and the weight of the stored item.
  • the intermediate protrusions 30 provided on the opposite sides are not integrally formed continuously (FIG. 7B),
  • the intermediate protrusions 30 formed on the opposite side are integrally continuous on the lower surface, but the intermediate protrusions 30 on the adjacent side are continuously integrated with the intermediate protrusion 30 formed on the opposite side.
  • the upper packaging material 1 is the same as the lower packaging material 2.
  • the present invention can be suitably used to store and package a substrate storage box containing various substrates such as a semiconductor wafer and a glass substrate in an outer box, and also requires a high buffer protection effect. It can also be suitably used for packaging other packages.
  • Lower packaging material 21 ... Main body part, 22 ... Storage recessed part, 23 ... Bottom part, 23a ... Bottom bottom surface, 24, 124 ... Bottom receiving Convex part, 25 ... side wall, 26 ... convex part, 27 ... cushioning projection for side part, 28 ... corner part, 29 ... cushioning projection for ridge part, 29a ... end face, 30 ... intermediate projection

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  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)

Abstract

This cushioning packaging material comprises a flat square upper and lower pair of packaging materials respectively formed from synthetic resin foam. The cushioning packaging material is provided with: a lower packaging material having, on the upper surface side thereof, a receiving recess into which the lower part of an object to be packaged can be inserted; and an upper packaging material having, on the lower surface side thereof, a receiving recess into which the upper part of the objected to be packaged can be inserted. The cushioning packaging material is configured in such a manner that cushioning protrusions for side sections, the cushioning protrusions protruding outward and coming into contact with the inner surface of an exterior box, are formed on the outer surfaces of side walls surrounding the receiving recesses of both the lower packaging material and the upper packaging material. The cushioning packaging material is characterized in that: the lower packaging material and the upper packaging material are provided with cushioning protrusions for ridge sections, the cushioning protrusions being formed on the outer surfaces of corners formed by side walls, the cushioning protrusions each protruding outwardly and obliquely relative to side walls and coming into contact with or coming close to portions of the inner surfaces of the exterior box, the portions being located on both sides of a ridge section of the exterior box; and at least a pair of facing side walls of the lower packaging material or the upper packaging material are respectively provided with center protrusion sections protruding outward between adjacent cushioning protrusions for side sections.

Description

緩衝包装材Buffer packaging material
　本発明は、主として半導体ウエハー等を収納した基板収納ボックスおよびその他の被包装物を外装箱に収納して包装する際に、該被包装物を保護するのに使用する緩衝包装材に関するものである。 The present invention relates to a buffer wrapping material used to protect a packaged article when a substrate storage box containing a semiconductor wafer or the like and other packaged articles are stored and packaged in an outer box. .
　集積回路に使用する半導体ウエハーは、他物との接触による衝撃または汚れ等が品質の維持に支障をきたす極めて繊細な製品であり、さらに高価な製品でもあることから、その輸送においては、ウエハーの保護および安全性の観点から、プラスチックス製で保形強度のある専用の基板収納ボックス（ハードケース）を用い、所要枚数のウエハーを一定間隔に並べて収納し包装するのが普通である。かかる基板収納ボックスは、殆どの場合は緩衝機能を有していないために、そのまま輸送すると、外部からの衝撃により内部のウエハーが損傷する虞がある。そのため、合成樹脂発泡体を有する緩衝包装材により、前記基板収納ボックスの上下部を保持した状態で段ボール製の外装箱に収納して包装することにより衝撃を緩和、減衰させ、ウエハーの保護を図ってきた。 Semiconductor wafers used in integrated circuits are extremely delicate products that are difficult to maintain in quality due to impact or dirt caused by contact with other objects, and are also expensive products. From the viewpoint of protection and safety, it is common to use a dedicated substrate storage box (hard case) made of plastics and having a shape-retaining strength, and store and wrap the required number of wafers at regular intervals. Since such a substrate storage box does not have a buffering function in most cases, if it is transported as it is, the internal wafer may be damaged by an external impact. For this reason, the shock-absorbing packaging material having a synthetic resin foam is used to store and wrap in a cardboard outer packaging box while holding the upper and lower portions of the substrate storage box, thereby reducing and attenuating the impact and protecting the wafer. I came.
　前記包装に用いられる緩衝包装材は、前記基板収納ボックス等の被包装物の上下部をそれぞれ嵌合して保持する上下一対の包装材を備えるものであるが、外装箱の外面に加わる衝撃を吸収し緩和する効果を高めるために、上下の包装材の外周面に放射状に突出する角状の緩衝用突起を設け、これを段ボール製の外装箱の内面に当接させて支持し、外装箱の外面に対する外力に対して該突起の弾性変形により緩衝の効果を得るようにしたものが提案されている（例えば、特許文献１）。また、前記同様の突起を外側面に設けたものとして、方形の本体部の角部において、側面延長方向に突出する突起を、外装箱との間に空間を保有させるように設けることも提案されている（特許文献２）。 The cushioning packaging material used for the packaging is provided with a pair of upper and lower packaging materials for fitting and holding the upper and lower parts of the object to be packaged such as the substrate storage box, but the impact applied to the outer surface of the outer packaging box. In order to enhance the effect of absorbing and relaxing, angular cushioning protrusions that project radially are provided on the outer peripheral surfaces of the upper and lower packaging materials, which are in contact with and supported by the inner surface of the cardboard outer packaging box. There has been proposed one in which a buffering effect is obtained by elastic deformation of the protrusions against an external force on the outer surface of the lens (for example, Patent Document 1). In addition, it is also proposed to provide a projection that protrudes in the side surface extension direction at the corner of the rectangular main body so as to have a space between the outer box and the same projection provided on the outer surface. (Patent Document 2).
　しかしながら、前記いずれの緩衝包装材の場合も、本体部の外側面に設けた突起を外装箱に対して当接させて支持するものであって、突起以外の部分では本体部と外装箱との間に空間を保有し該部分には突起による支えを有さないため、外的衝撃および圧力に対して弱く、他物との衝突等により外装箱に凹みが生じ易く、特に外装箱の底部側の角部および稜部が大きく凹む等の変形が生じ易い。 However, in any of the above-mentioned cushioning packaging materials, the protrusion provided on the outer side surface of the main body is supported by being in contact with the outer box, and the portion other than the protrusion is between the main body and the outer box. Since there is a space in between and there is no support by protrusions, it is vulnerable to external impact and pressure, and it is easy to dent in the outer box due to collision with other objects, especially the bottom side of the outer box Deformation such as large depressions at the corners and ridges is likely to occur.
　仮に、底部側の角部および稜部に大きな変形が生じると、座りが悪くなって、段積みした場合に不安定になる上、外観的に不体裁で商品イメージが悪くなり、内部のウエハー等の基板に影響がなくてもユーザーに不安を与え、信頼性を損なう虞がある。 If a large deformation occurs in the corners and ridges on the bottom side, the seating becomes worse, and it becomes unstable when stacked, and the appearance of the product deteriorates and the product image deteriorates. Even if the substrate is not affected, there is a risk that the user may be worried and the reliability may be impaired.
日本国特開２００３−２６２３２号公報Japanese Unexamined Patent Publication No. 2003-26232 日本国特開２００７−１１９０２０号公報Japanese Unexamined Patent Publication No. 2007-1119020
　本発明は、上記の問題を解消するためになしたものであり、外装箱の稜部および角部においても、緩衝突起による支えの効果および緩衝効果を良好に発揮でき、外装箱の稜部および角部に大きな凹みまたは破損を生じさせないようにした緩衝包装材を提供するものである。 The present invention has been made in order to solve the above-described problem, and the ridges and corners of the outer box can also exhibit the support effect and buffering effect by the buffer protrusions well, It is an object of the present invention to provide a shock-absorbing packaging material that does not cause a large dent or breakage at a corner.
　上記課題を解決する本発明は、合成樹脂発泡体によりそれぞれ成形された上下一対の包装材で、平面方形の本体部の上面側に被包装物の下部を挿入できる収納凹部を有する下部包装材と、平面方形の本体部の下面側に被包装物の上部を挿入できる収納凹部を有する上部包装材とを備え、前記下部包装材および上部包装材の前記収納凹部を囲む四方の側壁外面に、それぞれ外方に突出して外装箱内面に当接する側部用の緩衝突起が設けられてなる緩衝包装材であって、前記下部包装材および上部包装材には、それぞれ前記側壁外側面が交わるコーナー部の外面に、外方へかつ側壁に対して斜めに突出して外装箱の側面部における稜部両側内面に当接もしくは近接する稜部用の緩衝突起が設けられていることを特徴とする。また、前記下部包装材または上部包装材の少なくとも対向する一対の側壁にはそれぞれ、隣り合う側部用の緩衝突起間に外方に突出した中間突起部が設けられてなることを特徴とする。 The present invention that solves the above-mentioned problems is a pair of upper and lower packaging materials each formed of a synthetic resin foam, and a lower packaging material having a storage recess into which the lower part of the package can be inserted on the upper surface side of the planar rectangular main body part; An upper wrapping material having a storage recess capable of inserting the upper portion of the packaged object on the lower surface side of the flat rectangular main body, and the outer surfaces of the four side walls surrounding the storage recess of the lower wrapping material and the upper wrapping material, respectively. A cushioning packaging material provided with cushioning projections for side portions that protrude outward and abut on the inner surface of the outer packaging box, wherein the lower packaging material and the upper packaging material each have a corner portion where the outer side surfaces of the side walls intersect. The outer surface is provided with buffer projections for ridges that protrude outward and obliquely with respect to the side wall and abut against or are close to the inner surfaces of both sides of the ridge in the side surface of the exterior box. Further, at least a pair of opposing side walls of the lower wrapping material or the upper wrapping material is provided with an intermediate protruding portion that protrudes outward between the buffer projections for adjacent side portions.
　この緩衝包装材によれば、基板収納ボックス等の被包装物の下部を下部包装材の収納凹部に挿入し、上部を上部包装材の収納凹部に挿入して保持し、外装箱に収納し包装した状態において、下部包装材および上部包装材の側壁外面に有する側部用の緩衝突起が外装箱内面に当接して支持されるとともに、稜部用の緩衝突起が外装箱の稜部の両側内面に当接もしくは近接して支持されることになるため、外装箱に他物当接または落下による外力が作用したときに、前記各緩衝突起が弾性変形して衝撃を吸収し緩和されるのみならず、特に、外装箱の稜部が外的圧力に対して強くなり、例えば斜め方向に落下した際にも稜部または隅角部が容易に大きく凹んだり破損したりすることがない。加えて、両端部の緩衝突起が圧縮変形したときでも、両端部の突起と突起との間に中間突起を設けることで、稜落下時の衝撃による緩衝材の大きな損傷および分離を防止でき、同時に被包装物を保護できる。 According to this shock-absorbing packaging material, the lower part of an object to be packaged such as a substrate storage box is inserted into the storage recess of the lower packaging material, the upper part is inserted and held in the storage recess of the upper packaging material, and stored in the outer box. In this state, the side buffer projections on the outer side walls of the lower packaging material and the upper packaging material are supported by being in contact with the inner surface of the exterior box, and the cushion projections for the ridge portion are both inner surfaces of the ridge portion of the exterior box. Therefore, when external force is applied to the exterior box due to contact with or against other objects, the buffer protrusions are elastically deformed to absorb and reduce the impact. In particular, the ridge portion of the outer box becomes strong against external pressure, and the ridge portion or the corner portion is not easily dented or damaged even when it is dropped in an oblique direction, for example. In addition, even when the buffer projections at both ends are compressed and deformed, by providing intermediate projections between the projections at both ends, it is possible to prevent the buffer material from being greatly damaged and separated due to the impact when the ridge is dropped. The packaged item can be protected.
　前記緩衝包装材において、前記下部包装材の底部下面には外装箱の底部に当接する底部受用の凸部が、前記上部包装材の天部上面には外装箱の天部に当接する天部受用の凸部がそれぞれ設けられており、前記下部包装材および上部包装材における少なくとも稜部用の緩衝突起が、前記底部受用の凸部または天部受用の凸部と同一平面位置まで延設されて、外装箱の底部内面または天部内面に当接するように設けられてなるものとするのが好ましい。これにより、底部および天部の緩衝性も良好に保持されるのみならず、延設された前記緩衝突起の端部が外装箱の稜部および隅角部の支えの役目を果たすことになり、外装箱の稜部および隅角部の凹み防止を良好に行うことができる。また、前記緩衝包装材において、前記下部包装材の底部から外側に向かって突出する中間突起部が設けられており、その寸法は前記側壁に対して垂直方向の長さが両端の前記側部用緩衝突起の端面より短いので、外的圧力などで前記側部用緩衝突起が圧縮変形しても、中間部の緩衝突起が被包装物に当接することで、３箇所の緩衝突起により、強い弾性力で被包装物を支えることになり、緩衝突起の過度の変形を抑制しながら、被包装物を安定性よく保持できる。 In the shock-absorbing packaging material, the bottom receiving lower surface of the lower packaging material has a bottom receiving convex portion that comes into contact with the bottom of the outer packaging box, and the upper packaging material has a top receiving portion that comes into contact with the top of the outer packaging box. Each of the lower packaging material and the upper packaging material has at least a ridge cushioning protrusion extending to the same plane position as the bottom receiving convex portion or the top receiving convex portion. It is preferable that the outer box is provided so as to be in contact with the bottom inner surface or the top inner surface. Thereby, not only the buffering properties of the bottom part and the top part are well maintained, but also the end part of the extended buffering projection serves to support the ridge part and corner part of the exterior box, The ridges and corners of the outer box can be satisfactorily prevented from being dented. Further, in the cushioning packaging material, an intermediate projecting portion projecting outward from the bottom portion of the lower packaging material is provided, and the dimension thereof is for the side portion whose length in the direction perpendicular to the side wall is at both ends. Since it is shorter than the end face of the buffer projection, even if the side buffer projection is compressed and deformed by external pressure or the like, the intermediate buffer projection comes into contact with the object to be packaged, and the three buffer projections provide strong elasticity. The object to be packaged is supported by force, and the object to be packaged can be stably held while suppressing excessive deformation of the buffer protrusion.
　前記の緩衝包装材において、前記下部包装材の稜部用の緩衝突起および稜部に近い側部用の緩衝突起の底部側の端部が底部下面の四隅部に有する底部緩衝用の凸部に連続して形成されてなるものとすることができる。さらに、前記上部包装材における少なくとも稜部用の緩衝突起の天部側の端部が、天部上面の四隅部もしくはその近傍に有する天部受用の凸部に連続して形成されてなるものとすることもできる。これにより、底部受用の凸部或いは天部受用の凸部による外装箱の底部および天部に対する当接面積が増し安定した支持状態を保持できるばかりか、外装箱の稜部や隅角部の凹み防止の効果をさらに高めることができる。 In the cushioning packaging material, the bottom cushioning protrusions at the bottom corners of the bottom cushioning projections and the side cushioning projections for the side portions close to the ridges of the lower packaging material It can be formed continuously. Furthermore, at least the top end side of the cushioning projection for the ridge portion in the upper packaging material is formed continuously with the four corner portions of the top surface of the top portion or the convex portions for receiving the top portion. You can also This increases the contact area with the bottom and top of the exterior box by the convex part for receiving the bottom part or the convex part for receiving the top part, so that a stable support state can be maintained, and the ridges and corners of the exterior box are recessed. The effect of prevention can be further enhanced.
　前記の緩衝包装材において、前記下部包装材における少なくとも稜部用の緩衝突起の底部側の端面、および前記上部包装材における少なくとも稜部用の緩衝突起の天部側の端面が、それぞれ斜めに面取り形成されてなるものが好ましい。これにより、外装箱の稜部や角部に強い力が作用して潰れが生じたときに、先ず外装箱が潰れることにより衝撃を緩和できて、前記緩衝突起の部分に直に強い力が作用するのを防止できる。 In the above cushioning packaging material, at least the end surface on the bottom side of the cushioning projection for the ridge portion in the lower packaging material and the end surface on the top side of at least the cushioning projection for the ridge portion in the upper packaging material are respectively chamfered obliquely. What is formed is preferable. As a result, when a strong force acts on the ridges and corners of the outer box to cause crushing, the outer box is first crushed to reduce the impact, and a strong force acts directly on the buffer projection part. Can be prevented.
　前記の緩衝包装材において、下部包装材または上部包装材に形成された前記中間突起はそれぞれ、側壁に沿って、下部包装材の下面または上部包装材の上面まで延設されていることもできる。この場合において、下部包装材の下面または上部包装材の上面に延設された中間突起は、下部包装材の下面の底部受用の凸部または上部包装材の上面の天板受用の凸部よりも、低く形成されていることもできる。前記の緩衝包装材において、さらに、一対の側壁に形成された中間突起部は、それぞれ連続して下部包装材の下面または上部包装材の上面で一体的に連続して形成されていることもできる。この場合も、外装箱の稜部または角部に潰れが生じたときに、前記緩衝突起部分に直に強い力が作用するのを防止することができる。 In the buffer packaging material, the intermediate protrusions formed on the lower packaging material or the upper packaging material may be extended along the side wall to the lower surface of the lower packaging material or the upper surface of the upper packaging material, respectively. In this case, the intermediate protrusion extended on the lower surface of the lower packaging material or the upper surface of the upper packaging material is more than the convex portion for receiving the bottom portion on the lower surface of the lower packaging material or the convex portion for receiving the top plate on the upper surface of the upper packaging material. It can also be formed low. In the above-described cushioning packaging material, the intermediate protrusions formed on the pair of side walls may be continuously formed integrally on the lower surface of the lower packaging material or the upper surface of the upper packaging material. . Also in this case, it is possible to prevent a strong force from acting directly on the buffer protrusion when the ridge or corner of the outer box is crushed.
　上記した本発明の緩衝包装材によれば、包装状態において、上下部包装材の稜部用の緩衝突起が外装箱の稜部両側内面に当接もしくは近接して支持されることで、稜部や隅角部においても良好な緩衝効果を発揮することができるとともに、外装箱の稜部および隅角部が容易に過度に大きく凹んだり破損したりすることがないため、保管時および輸送時の座りが悪くなったり、段積みした場合に不安定になることがなく、外観的な体裁もよく、商品イメージが悪くなったり、使用者に不安を与える虞もない。 According to the above-described cushioning packaging material of the present invention, the cushioning projections for the ridges of the upper and lower packaging materials are supported in contact with or in close proximity to the inner surfaces of the ridges on both sides in the packaging state. In addition to being able to exert a good cushioning effect even at the corners and corners, the ridges and corners of the outer box are not easily overly dented or damaged, It does not become unstable when sitting down or stacking, has a good appearance, does not deteriorate the product image, and does not cause anxiety to the user.
本発明の実施形態にかかる緩衝包装材の上部包装材および下部包装材の斜視図である。It is a perspective view of the upper packaging material and lower packaging material of the buffer packaging material concerning embodiment of this invention. 本発明の実施形態にかかる緩衝包装材の上部包装材および下部包装材の半部を縦断した正面図である。It is the front view which cut through the upper packaging material of the buffer packaging material concerning the embodiment of the present invention, and the half of the lower packaging material longitudinally. 本発明の実施形態にかかる緩衝包装材の下部包装材の平面図である。It is a top view of the lower packaging material of the buffer packaging material concerning embodiment of this invention. 本発明の実施形態にかかる緩衝包装材の下部包装材の底面図である。It is a bottom view of the lower packaging material of the buffer packaging material concerning embodiment of this invention. 本発明の実施形態にかかる緩衝包装材の上部包装材および下部包装材の包装状態での断面図である。It is sectional drawing in the packaging state of the upper packaging material and lower packaging material of the buffer packaging material concerning embodiment of this invention. 本発明の実施形態にかかる緩衝包装材の包装状態の外装箱を断面した一部を拡大して示した正面図（ａ）および底面図（ｂ）である。It is the front view (a) and bottom view (b) which expanded and showed a part which cut down the section of the packaging box of the packaging state of the buffer packing material concerning the embodiment of the present invention. 本発明の下部包装材の底部に中間突起部を設けた略図である。It is the schematic which provided the intermediate protrusion part in the bottom part of the lower packaging material of this invention.
　以下、本発明を実施するための形態を図面に示す実施形態に基づいて説明する。 Hereinafter, modes for carrying out the present invention will be described based on embodiments shown in the drawings.
　図１乃至図６に示す本発明を実施するための形態において、本実施形態の緩衝包装材Ａ１は、それぞれ緩衝効果を有する合成樹脂発泡体（例えば、発泡性ビーズの型内発泡成形体）から成形された、上下で対をなす上部包装材１と下部包装材２とを備える。 In the form for carrying out the present invention shown in FIGS. 1 to 6, the buffer packaging material A1 of the present embodiment is made of a synthetic resin foam (for example, an in-mold foam molded body of expandable beads) having a buffering effect. An upper wrapping material 1 and a lower wrapping material 2 that are paired vertically are provided.
　これらの包装材は、任意の発泡樹脂成形体から形成することができるが、熱可塑性樹脂の発泡成形体であることが好ましい。熱可塑性樹脂としては、ポリスチレン系樹脂、ポリオレフィン系樹脂（例えば、ポリプロピレン系樹脂、ポリエチレン系樹脂）、ポリエステル系樹脂（例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレート）、ポリカーボネート系樹脂、ポリ乳酸系樹脂等が挙げられる。なかでも、ポリスチレンとポリエチレンとを含む複合樹脂を用いることが好ましい。また、前記発泡体の発泡倍率は３０~１００倍が好ましい。 These packaging materials can be formed from any foamed resin molded body, but are preferably foamed molded bodies of thermoplastic resin. As thermoplastic resins, polystyrene resins, polyolefin resins (eg, polypropylene resins, polyethylene resins), polyester resins (eg, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate), polycarbonate resins, polylactic acid resins Examples thereof include resins. Among these, it is preferable to use a composite resin containing polystyrene and polyethylene. The foaming ratio of the foam is preferably 30 to 100 times.
　本発明の緩衝包装材Ａ１が対象とする被包装物は、例えば、半導体ウエハー等の基板を一定間隔の並列状態に保持して収納することができる、適度に剛性のあるプラスチック製の専用の基板収納ボックスＢであり、通常、下部のボックス本体ｂ１とこれに被着自在な上部の蓋ｂ２とを備え、コーナー部に丸みを備えた平面方形をなしている。図１の場合は、上部側および下部側を簡略化して示している。上部包装材１および下部包装材２を備える本発明の緩衝包装材Ａ１は、前記基板収納ボックスＢを段ボール製の外装箱Ｃに収納して包装するのに使用するものであり、以下に示す構成を備えている。 The package to be packaged by the buffer wrapping material A1 of the present invention is, for example, a specially rigid plastic substrate that can hold and store substrates such as semiconductor wafers in a parallel state at regular intervals. The storage box B is usually a flat square having a lower box body b1 and an upper lid b2 that can be attached to the lower box body, and rounded corners. In the case of FIG. 1, the upper side and the lower side are shown in a simplified manner. The cushioning packaging material A1 of the present invention comprising the upper packaging material 1 and the lower packaging material 2 is used for housing and packaging the substrate storage box B in a cardboard outer packaging box C, and has the following configuration. It has.
　先ず、下部包装材２について説明すると、平面方形をなす本体部２１の上面側に、平面方形の前記被包装物Ｂの下部を挿入して嵌合状態においてガタつきが生じないように保持することができる角形の収納凹部２２が設けられている。図１における２３は、前記本体部２１の底部であり、該底部２３の下面２３ａには、段ボール製の外装箱Ｃに収納した包装状態において該外装箱Ｃの底部ｃ２に当接する底部受用の凸部２４が設けられており、外装箱Ｃとの間に空間を保有できるようになっている。この実施形態の場合、底部下面２３ａの前後左右に所定の間隔を置いて、例えば図４に示すように、底部下面２３ａの四隅部に四つの凸部２４が設けられる。 First, the lower wrapping material 2 will be described. The lower part of the planar rectangular object B is inserted into the upper surface side of the planar rectangular main body portion 21 and held so as not to rattle in the fitted state. A rectangular storage recess 22 is provided. Reference numeral 23 in FIG. 1 denotes a bottom portion of the main body portion 21, and a bottom receiving protrusion that abuts against the bottom portion c <b> 2 of the outer packaging box C in a packaged state housed in the outer packaging box C made of cardboard. A portion 24 is provided so that a space can be held between the outer case C and the exterior box C. In the case of this embodiment, four protrusions 24 are provided at the four corners of the bottom lower surface 23a with a predetermined interval on the front, rear, left and right of the bottom lower surface 23a, for example, as shown in FIG.
　前記収納凹部２２には、該収納凹部２２を囲む四方の側壁２５の周長方向（本体部の辺の長さ方向）の中央部内側に前記基板収納ボックスＢの下部の四方側面に有する凹部ｂ１−１、ｂ１−２に嵌合する凸部２６が設けられている。図１の場合、各側壁２５の中央部が落とし込まれて前記凸部２６が形成されている。 The storage recess 22 includes a recess b1 on the four sides of the lower part of the substrate storage box B on the inner side in the circumferential direction (the length direction of the side of the main body) of the four side walls 25 surrounding the storage recess 22. -1 and b1-2 are provided. In the case of FIG. 1, the central portion of each side wall 25 is dropped to form the convex portion 26.
　前記収納凹部２２を囲む各側壁２５には、それぞれ外方に側壁に対して垂直方向に突出して段ボール製の外装箱Ｃの側部内面に当接する側部用の緩衝突起２７が設けられている。前記緩衝突起２７は、例えば図１に示すように、各側壁外面の前記周長方向に間隔をおいて本体部２１の平面におけるコーナー部、つまり各側壁外面が交わるコーナー部２８に近い位置の２個所、またはそれ以上の個所に設けられている。これにより、前記側壁２５の外面と外装箱Ｃの側部内面との間に、前記緩衝突起２７の突出高さに相当する所要の空間を保有できるようになっている。 Each side wall 25 surrounding the storage recess 22 is provided with a side buffer protrusion 27 that protrudes outwardly in a direction perpendicular to the side wall and abuts against the inner surface of the side wall of the outer packaging box C made of cardboard. . For example, as shown in FIG. 1, the buffer protrusions 27 are located at a corner portion in the plane of the main body portion 21 at intervals in the circumferential direction of each side wall outer surface, that is, at a position close to a corner portion 28 where each side wall outer surface intersects. It is provided at a location or more. Thus, a required space corresponding to the protruding height of the buffer protrusion 27 can be held between the outer surface of the side wall 25 and the inner surface of the side of the exterior box C.
　本発明の場合は、前記側部用の緩衝突起２７に加えて、各側壁２５の外面が交わる前記コーナー部２８に、外方に側壁に対して斜めに突出して外装箱Ｃの側面による稜部の両側内面に当接もしくは僅かな間隙を存して近接する稜部用の緩衝突起２９が設けられており、これにより外装箱Ｃの底部Ｃ２に近い側面による稜部を内側から支えることができるように形成されている。 In the case of the present invention, in addition to the cushioning protrusions 27 for the side portions, the corner portions 28 where the outer surfaces of the side walls 25 intersect with each other are projected outwardly obliquely with respect to the side walls and are ridged by the side surfaces of the exterior box C. Cushion projections 29 for the ridge portion that are in contact with or close to the inner surfaces of both sides of the outer wall of the outer packaging box C are provided, so that the ridge portion by the side surface close to the bottom portion C2 of the outer packaging box C can be supported from the inside. It is formed as follows.
　前記稜部用の緩衝突起２９は、本体部２１の側方のみに突出するものであってもよいが、この実施形態の場合は、底部２３側の端部が底部受用の凸部２４と同一平面位置まで延設され、さらに、延設された端部が前記底部下面２３ａにおける四隅部もしくはその近傍に有する底部受用の凸部２４に連続して形成されており、該緩衝突起２９が、底部受用の凸部２４と共に底部２３を受ける役目も果たすように設けられている。 The ridge cushioning protrusion 29 may protrude only to the side of the main body 21, but in the case of this embodiment, the end on the bottom 23 side is the same as the protrusion 24 for receiving the bottom. Further, the extended end is formed continuously with the bottom receiving projections 24 at or near the four corners of the bottom lower surface 23a, and the buffer protrusion 29 is formed at the bottom. It is provided so as to fulfill the role of receiving the bottom portion 23 together with the receiving convex portion 24.
　図１に示す実施形態の場合は、前記下部包装材２の本体部２１の前記コーナー部２８に近い側部用の緩衝突起２７についても、底部２３側の端部が前記凸部２４と同一平面位置まで延設されるとともに、底部下面２３ａの底部用の凸部２４に連続して形成されている。 In the case of the embodiment shown in FIG. 1, the end portion on the bottom 23 side is also flush with the convex portion 24 for the buffer projection 27 for the side portion close to the corner portion 28 of the main body portion 21 of the lower packaging material 2. It extends to the position and is continuously formed on the bottom convex portion 24 of the bottom lower surface 23a.
　図６の場合、前記稜部用の緩衝突起２９および側部用の緩衝突起２７の底部側の端面（下面）２９ａが突出先端側ほど上方に位置するように面取り状に斜めに形成されて、前記凸部２４に連続しており、これにより外装箱Ｃに収納した包装状態において、外装箱Ｃの底部Ｃ２と側面部Ｃ３との間の稜部の内側、および隅角部の内側に三角形の小さい空隙Ｓ２を保有できるようになっている。 In the case of FIG. 6, the end surface (lower surface) 29a on the bottom side of the buffer projections 29 for the ridges and the buffer projections 27 for the side portions is formed obliquely in a chamfered shape so as to be positioned higher toward the protruding tip side, Continuing from the convex portion 24, in the packaged state accommodated in the outer box C, a triangular shape is formed inside the ridge between the bottom C2 and the side C3 of the outer box C and inside the corner. A small gap S2 can be retained.
　本発明ではさらに、前記側部用の緩衝突起２７、および前記稜部用の緩衝突起２９に加え、前記収納凹部２２を囲む各側壁２５の側部用の緩衝突起２７の間に、それぞれ外方に側壁２５に対して垂直方向に突出する中間突起３０が設けられている。中間突起３０は、本体部２１の側方のみに突出するものであってもよいが、この実施形態の場合は、底部２３側の端部が、本体部２１の下面から下面に垂直方向に突出している。そして、中間突起３０はそれぞれ、本体の底部下面上で、対向する他方の辺まで亘って、連続して一体的に形成されている。すなわち、中間突起３０は、本体の底部において、平面視略十字型を呈している。このような中間突起３０を設けることで、稜落下時の衝撃による緩衝材の大きな損傷または分離を防止でき、同時に被包装物を保護することができる。また、被包装物に対する緩衝材の接触面積が増えるため、外的衝撃に対してより強くなり、凹み難くなる。 Furthermore, in the present invention, in addition to the buffer projections 27 for the side portions and the buffer projections 29 for the ridges, the outer side portions of the side walls 25 surrounding the storage recesses 22 are respectively spaced outwardly. Intermediate projections 30 are provided to project in a direction perpendicular to the side wall 25. The intermediate protrusion 30 may protrude only to the side of the main body 21, but in this embodiment, the end on the bottom 23 side protrudes vertically from the lower surface of the main body 21 to the lower surface. ing. Each of the intermediate protrusions 30 is continuously and integrally formed on the bottom lower surface of the main body up to the other opposite side. That is, the intermediate protrusion 30 has a substantially cross shape in plan view at the bottom of the main body. By providing such an intermediate protrusion 30, it is possible to prevent the buffer material from being greatly damaged or separated due to an impact when the ridge is dropped, and at the same time, it is possible to protect the object to be packaged. Moreover, since the contact area of the buffer material with respect to a packaged article increases, it becomes stronger against an external impact and becomes difficult to dent.
　本実施形態では、図４に示すように、前記中間突起３０の寸法は、平面視で前記側部用の緩衝突起２７および前記稜部用の緩衝突起２９の平面視で本体部２１外側に突出する位置までの寸法より短い。また、中間突起３０は底部下面２３ａに形成された底部受用の凸部２４の突出よりも低く形成されている。このような形状のデザインにより、両端部の緩衝突起（２７，２９）または底部受用の凸部２４が圧縮変形した（潰された）ときは、中間部の緩衝突起３０が被包装物に当接することで、中間突起３０が更なる緩衝突起として作用する、すなわち、３箇所の緩衝突起となり、強い弾性力で被包装物を支えることができる。従って、緩衝突起の過度の変形を抑制しながら、被包装物を安定性よく保持できる。 In the present embodiment, as shown in FIG. 4, the intermediate protrusion 30 projects outside the main body 21 in a plan view of the buffer protrusion 27 for the side portion and the buffer protrusion 29 for the ridge portion in a plan view. It is shorter than the dimension to the position where The intermediate protrusion 30 is formed lower than the protrusion of the bottom receiving convex portion 24 formed on the bottom lower surface 23a. With the design of such a shape, when the buffer protrusions (27, 29) at both ends or the convex part 24 for receiving the bottom part are compressed and deformed (collapsed), the buffer protrusions 30 at the intermediate part come into contact with the package. Thus, the intermediate protrusion 30 acts as a further buffer protrusion, that is, three buffer protrusions, and can support the object to be packaged with a strong elastic force. Therefore, it is possible to stably hold the packaged object while suppressing excessive deformation of the buffer protrusion.
　また、前記上部包装材１は、平面図および底面図の図示を省略するが、基本的に下部包装材２と上下に略対称形をなしているものであり、平面方形をなす本体部１１の下面側に、平面方形の前記被包装物Ｂの蓋部ｂ２による上部を挿入して嵌合状態でガタつきを生じさせないように保持できる角形の収納凹部１２が設けられている。また、前記本体部１１における天部１３の上面（外側面）１３ａには、段ボール製の外装箱Ｃでの包装状態において外装箱Ｃの天部Ｃ１に当接する天部受用の複数の凸部１４が前後左右に間隔をおいて、例えば図５に示すように、天部上面１３ａの四隅部に設けられており、外装箱Ｃとの間に空間を保有できるようになっている。 Although the upper packaging material 1 is not shown in the plan view and the bottom view, it is basically symmetrical with the lower packaging material 2 in the vertical direction. On the lower surface side, there is provided a rectangular storage recess 12 that can be held so as not to cause rattling in the fitted state by inserting the upper part of the flat rectangular object B to be packaged b2. Further, on the top surface (outer side surface) 13a of the top portion 13 of the main body portion 11, a plurality of convex portions 14 for receiving the top portion that come into contact with the top portion C1 of the exterior box C in the packaged state of the exterior box C made of cardboard. Are provided at the four corners of the top surface 13a, for example, as shown in FIG.
　ただし、前記収納凹部１２は、前記下部包装材２における凸部２６に相当する構成を有しておらず、前記基板収納ボックスＢの上部を嵌合できるように形成されている。 However, the storage recess 12 does not have a configuration corresponding to the projection 26 in the lower packaging material 2 and is formed so that the upper portion of the substrate storage box B can be fitted.
　そして、前記収納凹部１２を囲む各側壁１５には、それぞれ外方に突出して外装箱Ｃの内面に当接する側部用の緩衝突起１７が、前記下部包装材２と同様に、各側壁外面の周長方向に間隔をおいて各側壁１５が交わるコーナー部１８に近い位置の２個所またはそれ以上の数個所に設けられており、前記側壁１５の外面と外装箱Ｃ内面との間に、該緩衝突起１７の突出高さに相当する所要の空間を保有できるようになっている。 Further, on each side wall 15 surrounding the storage recess 12, a buffering protrusion 17 for a side portion that protrudes outward and abuts against the inner surface of the outer packaging box C is provided on the outer surface of each side wall in the same manner as the lower packaging material 2. It is provided at two or more locations near the corner portion 18 where the side walls 15 intersect with each other at intervals in the circumferential direction, and between the outer surface of the side walls 15 and the inner surface of the exterior box C, A required space corresponding to the protruding height of the buffer protrusion 17 can be held.
　さらに、前記側部用の緩衝突起１７に加えて、前記コーナー部１８には、外方に側壁に対して斜めに突出して外装箱Ｃの側面部による稜部の両側内面に当接もしくは僅かな間隙を存して近接する稜部用の緩衝突起１９が設けられている。 Further, in addition to the buffer protrusion 17 for the side portion, the corner portion 18 protrudes obliquely outward with respect to the side wall and abuts or slightly touches both inner surfaces of the ridge portion by the side surface portion of the exterior box C. A buffer projection 19 for a ridge portion adjacent to each other with a gap is provided.
　前記稜部用の緩衝突起１９は、下部包装材２と同様に、天部側の端部が天部受用の凸部１４と同一平面位置まで延設され、さらに、延設された端部が前記天部上面１３ａにおける四隅部もしくはその近傍に有する底部受用の凸部１４に連続して形成されており、該緩衝突起１９が、底部受用の凸部１４と共に底部１３を受ける役目も果たすように設けられている。 As in the case of the lower wrapping material 2, the ridge cushioning protrusion 19 has an end on the top portion side extended to the same plane position as the convex portion 14 for receiving the top portion, and the extended end portion has It is formed continuously with the bottom receiving convex portions 14 at or near the four corners of the top surface 13a so that the buffer projection 19 also serves to receive the bottom 13 together with the bottom receiving convex portions 14. Is provided.
　図１に示す実施形態の場合は、前記上部包装材１の本体部１１の前記コーナー部１８に近い側部用の緩衝突起１７についても、天部２３側の端部が前記凸部１４と同一平面位置まで延設されるとともに、天部上面１３ａの天部用の凸部１４に連続して形成されている。 In the case of the embodiment shown in FIG. 1, the end portion on the top portion 23 side is the same as the convex portion 14 for the buffer projection 17 for the side portion close to the corner portion 18 of the main body portion 11 of the upper packaging material 1. It extends to a planar position and is continuously formed on the top convex portion 14 of the top top surface 13a.
　さらに、この上部包装材１についても、前記稜部用の緩衝突起１９および側部用の緩衝突起１７の天部側の端面（上面）１９ａが突出先端側ほど下方に位置するように斜めに形成されて、前記凸部１４に連続しており、これにより外装箱Ｃに収納した包装状態において、外装箱Ｃの天部Ｃ１と側面部Ｃ３との間の稜部の内側、および隅角部の内側に三角形の小さい空隙Ｓ１を保有できるようになる。 Further, the upper wrapping material 1 is also formed obliquely so that the top side end surfaces (upper surfaces) 19a of the ridge cushioning protrusions 19 and the side buffering protrusions 17 are located downward toward the protruding tip side. Then, in the packaged state that is continuous with the convex portion 14 and accommodated in the exterior box C, the inside of the ridge between the top portion C1 and the side surface portion C3 of the exterior box C, and the corner portion It becomes possible to have a small triangular gap S1 inside.
　本発明ではさらに、前記側部用の緩衝突起１７および前記稜部用の緩衝突起１９に加え、各側壁１５の側部用の緩衝突起１７の間に、それぞれ外方に側壁１５に対して垂直方向に突出する中間突起３０が設けられている。中間突起３０は、上部１３側の端部が、本体部１１の上面から下面に垂直方向に突出している。そして、中間突起３０はそれぞれ、本体部１１の上部上下面上で、対向する他方の辺まで亘って、連続して一体的に形成されている。すなわち、中間突起３０は、本体の上面底部において、平面視略十字型を呈している。このような中間突起３０を設けることで、稜落下時の衝撃による緩衝材の大きな損傷または分離を防止でき、同時に被包装物を保護することができる。また、被包装物に対する緩衝材の接触面積が増えるため、外的衝撃に対してより強くなり、凹み難くなる。 Further, in the present invention, in addition to the buffer projections 17 for the side portions and the buffer projections 19 for the ridges, between the buffer projections 17 for the side portions of the side walls 15, the outer side is perpendicular to the side walls 15. An intermediate protrusion 30 protruding in the direction is provided. The intermediate protrusion 30 has an end on the upper part 13 side protruding in a vertical direction from the upper surface of the main body 11 to the lower surface. The intermediate protrusions 30 are continuously and integrally formed on the upper upper and lower surfaces of the main body 11 over the other opposing sides. That is, the intermediate protrusion 30 has a substantially cross shape in plan view at the bottom of the upper surface of the main body. By providing such an intermediate protrusion 30, it is possible to prevent the buffer material from being greatly damaged or separated due to an impact when the ridge is dropped, and at the same time, it is possible to protect the object to be packaged. Moreover, since the contact area of the buffer material with respect to a packaged article increases, it becomes stronger against an external impact and becomes difficult to dent.
　本実施形態では、図４に示すように、前記中間突起３０の寸法は、平面視で前記側部用の緩衝突起１７および前記稜部用の緩衝突起１９の平面視で本体部１１外側に突出する位置までの寸法より短い。また、中間突起３０は、上部上面１３ａに形成された上部受用の凸部１４の突出よりも低く形成されている。このような形状のデザインにより、両端部の緩衝突起（１７，１９）または上部受用の凸部１４が圧縮変形したときは、中間部の緩衝突起３０が被包装物に当接することで、３箇所の緩衝突起となり、強い弾性力で被包装物を支えることができる。従って、緩衝突起の過度の変形を抑制しながら、被包装物を安定性よく保持できる。 In the present embodiment, as shown in FIG. 4, the intermediate protrusion 30 projects to the outside of the main body 11 in a plan view of the buffer protrusion 17 for the side portion and the buffer protrusion 19 for the ridge portion in a plan view. It is shorter than the dimension to the position where The intermediate protrusion 30 is formed lower than the protrusion of the upper receiving convex portion 14 formed on the upper upper surface 13a. When the buffer protrusions (17, 19) at both ends or the upper receiving protrusion 14 are compressed and deformed by the design of such a shape, the buffer protrusions 30 at the intermediate part come into contact with the article to be packaged at three locations. It becomes a buffer protrusion and can support the package with strong elastic force. Therefore, it is possible to stably hold the packaged object while suppressing excessive deformation of the buffer protrusion.
　なお、前記上部包装材１の側部用の緩衝凸起１７および稜部用の緩衝突起１９、並びに、前記下部包装材２の側部用の緩衝凸起２７および稜部用の緩衝突起２９は、図１に示すように平面台形であり、上下方向にリブ状に延びる突起のほか、例えば、角柱状、円柱状あるいは半球状等の種々の形態による実施が可能である。また、同様に中間突起３０の形状も、円柱状、半球状、台形状等の種々の形態による実施が可能である。 In addition, the buffer protrusion 17 for the side of the upper packaging material 1 and the buffer protrusion 19 for the ridge, and the buffer protrusion 27 for the side of the lower packaging material 2 and the buffer protrusion 29 for the ridge are as follows: As shown in FIG. 1, it has a flat trapezoidal shape, and can be implemented in various forms such as a prismatic shape, a cylindrical shape, or a hemispherical shape, in addition to a protrusion extending in a rib shape in the vertical direction. Similarly, the shape of the intermediate protrusion 30 can be implemented in various forms such as a columnar shape, a hemispherical shape, and a trapezoidal shape.
　次に、上述した実施形態の緩衝包装材Ａ１を用いた包装状態について説明する。 Next, a packaging state using the buffer packaging material A1 of the above-described embodiment will be described.
　図５に示すように、ウエハー専用の平面方形の基板収納ボックスＢを被包装物として包装する場合、ウエハーを収納した該被包装物Ｂのボックス本体ｂ１による下部を下部包装材２の収納凹部２２に挿入し嵌合状態に保持する。通常、前記下部包装材２を外装箱Ｃ内の底部上にセットしておいて、該下部包装材２の収納凹部２２に前記基板収納ボックスＢの下部を上方より収納し嵌合状態に保持する。この後、上部包装材１を前記基板収納ボックスＢの上部に被せ、該上部包装材１の下面側に有する収納凹部１２に前記基板収納ボックスＢの上部を嵌合状態に保持する。こうして外装箱Ｃの上部の天部Ｃ１となるフラップを閉じて包装する。 As shown in FIG. 5, when a flat rectangular substrate storage box B dedicated to a wafer is packaged as an object to be packaged, the lower part of the object B to be packaged B that stores the wafer is defined by the storage recess 22 of the lower packaging material 2. Inserted and held in a fitted state. Usually, the lower packaging material 2 is set on the bottom of the outer packaging box C, and the lower portion of the substrate storage box B is stored in the storage recess 22 of the lower packaging material 2 from above and held in a fitted state. . Thereafter, the upper packaging material 1 is placed on the upper portion of the substrate storage box B, and the upper portion of the substrate storage box B is held in a fitted state in the storage recess 12 provided on the lower surface side of the upper packaging material 1. In this way, the flap which becomes the top part C1 of the upper part of the exterior box C is closed and wrapped.
　この包装状態においては、平面方形の被包装物Ｂの上下部がそれぞれ上部包装材１および下部包装材２より嵌合状態で受支されて安定性よく保持される。そして緩衝包装材Ａ１の下部包装材２および上部包装材１が、それぞれ本体部２１および１１の側壁外側面に有する側部用の緩衝突起２７および１７が外装箱Ｃの側部内面に当接するとともに、特に稜部用の緩衝突起２９および１９が外装箱Ｃの稜部両側内面に当接もしくは近接している。そのため、輸送および運搬等における取り扱いにおいて、外装箱Ｃに対し外力または外的衝撃が作用したときは、前記側部用の緩衝突起２７および１７並びに稜部用の緩衝突起２９および１９が弾性変形することで衝撃を緩和できる。 In this packaging state, the upper and lower parts of the flat rectangular article B are received and fitted in a fitted state from the upper packaging material 1 and the lower packaging material 2, respectively, and are stably held. And the side cushioning protrusions 27 and 17 that the lower packaging material 2 and the upper packaging material 1 of the cushioning packaging material A1 respectively have on the side wall outer surfaces of the main body portions 21 and 11 are in contact with the inner side surface of the outer box C. In particular, the buffer projections 29 and 19 for the ridge portion are in contact with or close to the inner surfaces of both sides of the ridge portion of the exterior box C. Therefore, when an external force or an external impact is applied to the outer box C during handling in transportation and transportation, the side buffer projections 27 and 17 and the ridge buffer projections 29 and 19 are elastically deformed. Can alleviate the impact.
　特に、外装箱Ｃの底部および天部近傍の稜部が前記稜部用の緩衝突起２９および１９により支えられ、隅角部等に従来のような大きな空間を有さないため、他物との接触または斜め方向に落下する等により、外装箱Ｃの稜部または隅角部に大きな外力が作用しても、該稜部における過度の大きな凹み変形を前記緩衝突起２９および１９により抑制できる。このため、包装状態において、座りが悪くなったり段積み状態が不安定になったりすることはなく、輸送先に不安感を与える心配がない。 In particular, the bottom of the outer box C and the ridges near the top are supported by the buffer projections 29 and 19 for the ridges, and the corners or the like do not have a large space as in the prior art. Even if a large external force is applied to the ridge or corner of the outer packaging box C by contact or falling in an oblique direction, excessively large dent deformation at the ridge can be suppressed by the buffer protrusions 29 and 19. For this reason, in the packaged state, the sitting state does not get worse or the stacked state does not become unstable, and there is no fear of giving an uneasy feeling to the transportation destination.
　特に、前記下部包装材２および上部包装材１の稜部用の緩衝突起２９および１９の底部側または天部側の端部が、底部受用の凸部２４あるいは天部受用の凸部１４と同一平面位置まで延設されていること、さらには該凸部２４または１４に連続していることで、外装箱Ｃの底部と側面部との間の稜部および隅角部の内側もまた前記緩衝突起２９および１９により支えられることになり、外装箱Ｃの底部Ｃ２や天部Ｃ１の四辺の稜部および四隅の隅角部における大きな凹み変形が生じるのを防止でき、包装状態の保形性がよく、被包装物である基板収納ボックスＢの保護を良好になし得る。 In particular, the bottom or top end of the ridge cushioning protrusions 29 and 19 of the lower packaging material 2 and the upper packaging material 1 is the same as the bottom receiving convex portion 24 or the top receiving convex portion 14. By extending to the planar position and continuing to the convex portion 24 or 14, the inside of the ridge portion and the corner portion between the bottom portion and the side surface portion of the exterior box C is also buffered. It will be supported by the protrusions 29 and 19, and it can be prevented that large dent deformation occurs at the ridges on the four sides and the corners of the four corners of the bottom part C2 and the top part C1 of the outer box C, and the shape retention of the packaging state can be prevented. The protection of the substrate storage box B that is the packaged object can be well achieved.
　また、本体部２１の底部面に、それぞれ隣接する両端の緩衝突起２７の間に設けられた中間突起３０の寸法（前記側壁に対して垂直方向の長さ）を、前記側部用の緩衝突起２７および前記稜部用の緩衝突起２９の外側に突出した寸法（長さ）より短くなるように設計することによって、仮に稜落下時の衝撃により両端部の緩衝突起２７などが圧縮変形したとしても、中間部の中間突起３０が被包装物に当接することで、緩衝突起（２７，２９）の過度の変形を抑制しながら、被包装物を安定よく保持することができる。 Further, the size of the intermediate projection 30 (the length in the direction perpendicular to the side wall) provided between the buffer projections 27 at both ends adjacent to each other on the bottom surface of the main body portion 21 is set as the buffer projection for the side portion. 27 and the projections 29 on the ridges are designed to be shorter than the dimension (length) projecting outside, even if the cushioning projections 27 at both ends are compressed and deformed due to the impact when the ridges are dropped. Since the intermediate projection 30 at the intermediate portion is in contact with the package, the package can be stably held while suppressing excessive deformation of the buffer projections (27, 29).
　なお、上述した実施形態では、上下で対をなす下部包装材２と上部包装材１とが、一つの被包装物を収納保持して、外装箱内に収納して包装する場合について説明したが、このほか、例えば上述した実施形態の緩衝包装材を複数個外装箱内に並べて収納して、複数個の被包装物を同時に包装するように使用することもできる。 In addition, although embodiment mentioned above demonstrated the case where the lower packaging material 2 and the upper packaging material 1 which make a pair up and down accommodate and hold | maintain one packaged object, and accommodate and package in an exterior box. In addition, for example, a plurality of the buffer wrapping materials of the above-described embodiment can be stored side by side in an exterior box, and a plurality of items to be packaged can be packaged simultaneously.
　さらに、上述した実施形態では、中間突起３０は、下部包装材２の本体部２１の底部に一辺から対向する他方の辺に亘って十字型を呈しているが、本発明はこの実施形態に限られない。すなわち、基板収納ボックスの形状および収容物の重量における荷重の掛かり具合によって中間突起３０の配置等を変更する必要がある。例えば、図７に示す様々な実施形態によれば、下部包装材２の下面において、対向する辺に設けられた中間突起３０が一体的に連続して形成されない形態（図７（ｂ））、対向する一辺において形成された中間突起３０同士が下面上で一体的に連続しているが、隣の辺における中間突起３０同士は対向する辺に形成された中間突起３０と連続して一体的に形成されない（図７（ｃ））または、いずれの中間突起３０も下面上で一体的に連続して形成されていない（図７（ｄ））等を組み合わせて設定できる。また、本体部２１の底部の一辺から対向する他辺に向かってある程度の長さ延伸していればよく、外装箱の形状によって様々な長さに設定してもよい。上部包装材１についても下部包装材２と同様である。 Furthermore, in the embodiment described above, the intermediate protrusion 30 has a cross shape extending from one side to the bottom of the main body portion 21 of the lower packaging material 2, but the present invention is not limited to this embodiment. I can't. That is, it is necessary to change the arrangement of the intermediate protrusions 30 depending on the load on the shape of the substrate storage box and the weight of the stored item. For example, according to various embodiments shown in FIG. 7, in the lower surface of the lower packaging material 2, the intermediate protrusions 30 provided on the opposite sides are not integrally formed continuously (FIG. 7B), The intermediate protrusions 30 formed on the opposite side are integrally continuous on the lower surface, but the intermediate protrusions 30 on the adjacent side are continuously integrated with the intermediate protrusion 30 formed on the opposite side. It can be set by combining (not shown) (FIG. 7 (c)), or any intermediate protrusion 30 not being integrally formed on the lower surface (FIG. 7 (d)). Moreover, it should just be extended to some extent toward the other side which opposes the one side of the bottom part of the main-body part 21, and may set it to various length by the shape of an exterior box. The upper packaging material 1 is the same as the lower packaging material 2.
　本発明は、半導体ウエハー等の基板、ガラス基板等の繊細な各種の基板を収納した基板収納ボックスを外装箱に収納して包装するのに好適に利用できるほか、高い緩衝保護の効果が求められる他の被包装物の包装にも好適に利用できる。 INDUSTRIAL APPLICABILITY The present invention can be suitably used to store and package a substrate storage box containing various substrates such as a semiconductor wafer and a glass substrate in an outer box, and also requires a high buffer protection effect. It can also be suitably used for packaging other packages.
　Ａ１，Ａ２，Ａ３…緩衝包装材、Ｂ…被包装物、ｂ１…ボックス本体、ｂ２…蓋、Ｃ…外装箱、Ｃ１…天部、Ｃ２…底部、Ｃ３…側面部、１…上部包装材、１１…本体部、１２…収納凹部、１３…天部，１３ａ…天部上面、１４，１１４…天部受用の凸部、１５…側壁、１６…凸部、１７…側部用の緩衝突起、１８…コーナー部、１９…稜部用の緩衝突起、１９ａ…端面、２…下部包装材、２１…本体部、２２…収納凹部、２３…底部、２３ａ…底部下面、２４，１２４…底部受用の凸部、２５…側壁、２６…凸部、２７…側部用の緩衝突起、２８…コーナー部、２９…稜部用の緩衝突起、２９ａ…端面、３０・・・中間突起 A1, A2, A3 ... buffer packaging material, B ... packaged object, b1 ... box body, b2 ... lid, C ... exterior box, C1 ... top part, C2 ... bottom part, C3 ... side part, 1 ... top packaging material, DESCRIPTION OF SYMBOLS 11 ... Main-body part, 12 ... Storage recessed part, 13 ... Top part, 13a ... Top part upper part, 14, 114 ... Convex part for top part reception, 15 ... Side wall, 16 ... Convex part, 17 ... Buffering protrusion for side parts, DESCRIPTION OF SYMBOLS 18 ... Corner part, 19 ... Buffering protrusion for ridge part, 19a ... End surface, 2 ... Lower packaging material, 21 ... Main body part, 22 ... Storage recessed part, 23 ... Bottom part, 23a ... Bottom bottom surface, 24, 124 ... Bottom receiving Convex part, 25 ... side wall, 26 ... convex part, 27 ... cushioning projection for side part, 28 ... corner part, 29 ... cushioning projection for ridge part, 29a ... end face, 30 ... intermediate projection

Claims (8)

  1. 　合成樹脂発泡体によりそれぞれ成形された平面方形の上下一対の包装材で、上面側に被包装物の下部を挿入できる収納凹部を有する下部包装材と、下面側に被包装物の上部を挿入できる収納凹部を有する上部包装材とを備え、前記下部包装材および上部包装材の前記収納凹部を囲む側壁の外側面に、それぞれ外方に突出して外装箱内面に当接する側部用の緩衝突起が設けられてなる緩衝包装材であって、
    　前記下部包装材および上部包装材には、それぞれ前記側壁によるコーナー部の外面に、外方へかつ側壁に対して斜めに突出して外装箱の稜部両側内面に当接もしくは近接する稜部用の緩衝突起と、
    　前記下部包装材または上部包装材の少なくとも対向する一対の側壁にはそれぞれ、隣り合う前記側部用の緩衝突起間に外方に突出した中間突起部と
    が設けられてなることを特徴とする緩衝包装材。     A pair of flat rectangular upper and lower packaging materials each molded with a synthetic resin foam, with a lower packaging material having a storage recess capable of inserting the lower part of the packaging object on the upper surface side, and an upper part of the packaging object on the lower surface side An upper wrapping material having a storage recess, and buffer projections for side portions that protrude outwardly and come into contact with the inner surface of the outer packaging box on the outer side surfaces of the lower wrapping material and the upper wrapping material that surround the storage recess. A buffer packaging material provided,
    The lower wrapping material and the upper wrapping material are used for ridges that protrude outwardly and obliquely to the side walls of the corner portions by the side walls and contact or approach the inner surfaces of both sides of the ridge portions of the outer packaging box. Buffer bumps,
    A shock absorber characterized in that at least a pair of opposing side walls of the lower wrapping material or the upper wrapping material is provided with an intermediate protruding portion protruding outward between the adjacent buffer protrusions for the side portions. Packaging material.
  2. 　前記下部包装材の底部下面には外装箱の底部に当接する底部受用の凸部が、前記上部包装材の天部上面には外装箱の天部に当接する天部受用の凸部がそれぞれ設けられており、前記下部包装材および上部包装材における少なくとも稜部用の緩衝突起が、前記底部受用の凸部または天部受用の凸部と同一平面位置まで延設されて、外装箱の底部内面または天部内面に当接するように設けられてなる、請求項１に記載の緩衝包装材。 A bottom receiving convex portion that contacts the bottom portion of the outer packaging box is provided on the bottom lower surface of the lower packaging material, and a top receiving convex portion that contacts the top portion of the outer packaging box is provided on the upper top surface of the upper packaging material. And at least a ridge cushioning protrusion in the lower packaging material and the upper packaging material is extended to the same plane position as the bottom receiving convex portion or the top receiving convex portion, and the bottom inner surface of the exterior box Or the buffer packaging material of Claim 1 provided so that it may contact | abut to an inner surface of a top part.
  3. 　前記下部包装材における少なくとも稜部用の緩衝突起の底部側に延設された端部が、底部下面の四隅部もしくはその近傍に有する底部受用の凸部に連続して形成され、且つ／或いは
    　前記上部包装材における少なくとも稜部用の緩衝突起の天部側に延設された端部が、天部上面の四隅部もしくはその近傍に有する天部受用の凸部に連続して形成されてなる、請求項２に記載の緩衝包装材。     In the lower wrapping material, at least end portions extended to the bottom side of the buffer projections for the ridges are formed continuously with the four corners of the bottom surface of the bottom portion or the convex portions for receiving the bottom portions, and / or Ends extended to the top side of at least the ridge cushioning projections in the upper packaging material are formed continuously from the four corners of the top surface of the top part or convex parts for receiving the top part. The shock-absorbing packaging material according to claim 2.
  4. 　前記下部包装材における少なくとも稜部用の緩衝突起の底部側の端面、および、前記上部包装材における少なくとも稜部用の緩衝突起の天部側の端面が、それぞれ斜めに面取り形成されてなる、請求項２または３に記載の緩衝包装材。 The end surface on the bottom side of at least the cushioning projection for the ridge portion in the lower packaging material and the end surface on the top side of the cushioning projection for at least the ridge portion in the upper packaging material are each formed by chamfering obliquely. Item 4. A packaging material according to Item 2 or 3.
  5. 　前記下部包装材の底部または前記上部包装材の天部における前記中間突起部の寸法は、前記側壁に対して垂直方向の長さが両端の側部用の緩衝突起の端面より短いことを特徴とする、請求項１記載の緩衝包装材。 The dimension of the intermediate projection at the bottom of the lower packaging material or the top of the upper packaging material is shorter in the direction perpendicular to the side wall than the end surfaces of the buffer projections for the side portions at both ends. The buffer packaging material according to claim 1.
  6. 　前記下部包装材または前記上部包装材に形成された前記中間突起部はそれぞれ、側壁に沿って、前記下部包装材の下面または前記上部包装材の上面まで延設されていることを特徴とする、請求項５に記載の緩衝包装材。 The intermediate protrusions formed on the lower packaging material or the upper packaging material respectively extend along the side wall to the lower surface of the lower packaging material or the upper surface of the upper packaging material, The shock-absorbing packaging material according to claim 5.
  7. 　前記下部包装材の下面または前記上部包装材の上面に延設された前記中間突起部は、前記下部包装材の下面の底部受用の凸部または前記上部包装材の上面の天部受用の凸部よりも低く形成されていることを特徴とする、請求項６に記載の緩衝包装材。 The intermediate protrusion extended on the lower surface of the lower packaging material or the upper surface of the upper packaging material is a convex portion for receiving the bottom portion of the lower surface of the lower packaging material or a convex portion for receiving the top portion of the upper surface of the upper packaging material. The cushioning packaging material according to claim 6, wherein the cushioning packaging material is formed lower.
  8. 　一対の側壁に形成された中間突起部は、それぞれ連続して前記下部包装材の下面で一体的に連続して形成され、且つ／或いは前記上部包装材の上面で一体的に連続して形成されていることを特徴とする、請求項７に記載の緩衝包装材。 The intermediate protrusions formed on the pair of side walls are continuously formed integrally on the lower surface of the lower packaging material and / or integrally formed on the upper surface of the upper packaging material. The cushioning packaging material according to claim 7, wherein
PCT/IB2013/002868 2013-12-26 2013-12-26 Cushioning packaging material WO2015097489A1 (en)

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PCT/IB2013/002868 WO2015097489A1 (en) 2013-12-26 2013-12-26 Cushioning packaging material

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Application Number Priority Date Filing Date Title
PCT/IB2013/002868 WO2015097489A1 (en) 2013-12-26 2013-12-26 Cushioning packaging material

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WO2015097489A1 true WO2015097489A1 (en) 2015-07-02

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110073U (en) * 1980-12-15 1982-07-07
JPS57196690U (en) * 1981-06-08 1982-12-13
JPS59109673U (en) * 1983-01-10 1984-07-24 松下電器産業株式会社 packaging equipment
JPS6021478U (en) * 1983-07-20 1985-02-14 三洋電機株式会社 Packing cushioning material
JP2000281139A (en) * 1999-03-31 2000-10-10 Sekisui Plastics Co Ltd Assembly package cushioning material
JP2004182237A (en) * 2002-11-29 2004-07-02 Shinano Kenshi Co Ltd Buffer material
JP2004203439A (en) * 2002-12-25 2004-07-22 Sekisui Plastics Co Ltd Buffer packaging material
JP2008094417A (en) * 2006-10-10 2008-04-24 Sumco Corp Cushion for use in packaging cassette case
JP2010208658A (en) * 2009-03-10 2010-09-24 Sekisui Plastics Co Ltd Shock-absorbing packaging material
JP2010208659A (en) * 2009-03-10 2010-09-24 Sekisui Plastics Co Ltd Shock-absorbing packaging material

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110073U (en) * 1980-12-15 1982-07-07
JPS57196690U (en) * 1981-06-08 1982-12-13
JPS59109673U (en) * 1983-01-10 1984-07-24 松下電器産業株式会社 packaging equipment
JPS6021478U (en) * 1983-07-20 1985-02-14 三洋電機株式会社 Packing cushioning material
JP2000281139A (en) * 1999-03-31 2000-10-10 Sekisui Plastics Co Ltd Assembly package cushioning material
JP2004182237A (en) * 2002-11-29 2004-07-02 Shinano Kenshi Co Ltd Buffer material
JP2004203439A (en) * 2002-12-25 2004-07-22 Sekisui Plastics Co Ltd Buffer packaging material
JP2008094417A (en) * 2006-10-10 2008-04-24 Sumco Corp Cushion for use in packaging cassette case
JP2010208658A (en) * 2009-03-10 2010-09-24 Sekisui Plastics Co Ltd Shock-absorbing packaging material
JP2010208659A (en) * 2009-03-10 2010-09-24 Sekisui Plastics Co Ltd Shock-absorbing packaging material

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