JP5259243B2 - Container for transporting plate-shaped body - Google Patents

Description

  The present invention relates to a transport container used for transporting and storing various glass substrates such as a glass plate, a glass substrate for liquid crystal display and a plasma display.

  Conventionally, it is made of synthetic resin foam with buffering properties as a transport container for storing and transporting relatively large glass substrates such as base glass and liquid crystal display glass substrates and other impact-resistant plate-like bodies. In this case, the plate-like bodies are inserted one by one into the longitudinal grooves arranged at equal intervals on the inner surface of one opposite side wall of the container body so as not to contact each other. As described above, a device that is supported and stored in an upright state is generally used.

  In recent years, due to an increase in demand for large-sized liquid crystal televisions and plasma televisions, large-sized glass substrates in which one or both of the vertical and horizontal directions exceed 100 cm have been adopted as glass substrates for televisions. Transport containers for transport are also becoming larger.

  However, in the conventional method of accommodating the glass substrate upright by the vertical grooves on the inner surface of the side wall, the glass substrate itself is bent and deformed by its own weight due to the large and heavy glass substrate, or the weight of the glass substrate is increased. When the load is concentrated on the bottom of the container body, the bottom is compressed and deformed, and the cushion function and the impact mitigating function may be impaired.

  In order not to cause such a problem, a container for transport in which glass substrates and buffer spacers are alternately stacked and stored in the container body, and each glass substrate is received by the surface via the spacer has also appeared. Yes.

  In the case of this type of container, there is no risk of bending deformation of the glass substrate, and the glass substrate can be well protected, but the movement restriction and edge protection of the glass substrate are not taken into consideration, and handling in transportation The glass substrate may be damaged when the container is laid down or slanted.

  Therefore, as a container of a method of alternately storing and storing glass substrates and buffer spacers in the container main body, there is a container that can hold and hold the end protection of the glass substrate to be stored well. It has been proposed (for example, Patent Document 1).

In the case of this container, there is provided a buffering contact member that elastically contacts the edge of the glass substrate housed on the inner surface of the side wall, and the edge of the glass substrate housed contacts the corresponding contact member. By contacting and supporting, the impact when the container is laid down or tilted is reduced, and the glass substrate is prevented from being damaged.
JP 2007-314236 A

  However, in the case of Patent Document 1, the buffer abutting member for abutting the edge of the glass substrate to be accommodated is made of a low-density material and a highly elastic foam compared to the container body. Therefore, when the weight of the glass substrate is concentrated and loaded against the abutting member at the abutting portion of the edge portion due to the container lying down or obliquely falling, the abutting member is compressed or damaged. In addition to impairing the durability of the abutting member itself, the impact mitigating effect of the abutting member may not be sufficiently exerted, and the stored glass substrate may move in the surface direction. The glass substrate cannot be fully satisfied in terms of movement regulation and edge protection.

  The present invention was made in order to solve the above-mentioned problem, and in a transporting container of a method of storing a plate-like body such as a glass substrate in a state of being stacked with a protective sheet sandwiched between each plate-like body, It is possible to prevent excessive compressive deformation and breakage of the member with which the edge of the plate-like body abuts, improve the impact mitigating effect by the member, and control the movement of the plate-like body such as a glass substrate to be stored. The present invention provides a container for transporting a plate-like body that provides excellent edge protection and excellent durability.

The present invention for solving the above-mentioned problems is a synthetic resin foam container comprising a container body that opens upward and a lid that is attached to the opening of the container body. A container for transporting a plate-shaped body that is stored in a state where a protective sheet is sandwiched between the plate-shaped bodies. contact cushioning striker member of the fixing is attached to protrude from the inner surface of the side wall, characterized in that the abutment member is formed by a high density material than the container body, further, in addition to the configuration described above, the person The contact member is fitted to and attached to a recess on the inner surface of the side wall of the container body, and at least one of the rear surface of the contact member and the inner surface of the recess facing the contact member is partially in contact with the other, A gap is provided between the inner surface of the recess and the contact member can be displaced outward. Protrusions are characterized by being obtained provided that.

According to this transport container, a plate-like body such as a glass substrate can be stacked and received so as to be received by the surface, there is no risk of bending deformation of the plate-like body, and the edge of the plate-like body to be stored Since the contact member for buffering and fixing the contact member is formed of a material having a higher density than the container body, the pressure due to the weight of the plate-like body is applied to the contact member due to the container being laid down or tilted. Even if it acts intensively, the corresponding contact member does not cause excessive compressive deformation or breakage. In addition, since the contact member that has received the pressure is elastically supported by the container main body made of a synthetic resin foam having a lower density than this, the contact member itself has low elasticity. Even if it exists, the outstanding buffer effect can be exhibited.
In addition, at least one of the back surface of the abutting member fitted in the concave portion on the inner surface of the side wall of the container body and the inner surface of the concave portion facing this, allows displacement of the corresponding contact member to the outside of the container. Since the convex portion is provided, when the weight of the plate-like body is concentrated and applied to the abutting member with which the edge of the plate-like body abuts due to the container lying down or obliquely falling, The abutting member can be elastically easily displaced outward by the convex portion, the acting pressure can be released, and an excellent impact relaxation effect can be exhibited.

  In the transport container, on the inner surface of at least one opposing side wall of the four side walls of the container main body, the buffer fixing contact member so that movement of the plate-like body in the opposing direction can be suppressed. Projecting from the inner surface of the side wall. Further, the abutting member having a planar L shape may be provided on the side wall inner surface at the four corners of the container body so as to protrude from the side wall inner surface. Thereby, while being able to prevent the edge part of the accommodated plate-shaped object from contact | abutting to a side wall inner surface, the movement regulation of a plate-shaped object can be made reliably.

  Moreover, in the said container for conveyance, what the said contact member consists of a synthetic resin foam of a low magnification foam from a container main body is preferable. As a result, the abutting member can be formed separately from the container main body, and it is also possible to make a difference in density by foaming integrally with the container main body, facilitating manufacture. In addition, excessive compressive deformation of the contact member can be suppressed, and a good buffering effect can be exhibited.

Also, in the carrying container, with the previous case Kitotsu portion is arc-shaped longitudinal ribs, can be easily fitted to the contact member so as to be inserted from above relative to the recess of the side wall inner surface, the plate When pressure is applied due to the weight of the body, it can be easily elastically deformed outward.

  As described above, according to the container for transporting a plate-like body of the present invention, a plate-like body such as a glass substrate can be stored in a state of being stacked via a protective sheet, and there is no risk of bending deformation of the plate-like body. In addition, by preventing excessive compression deformation and breakage of the member that contacts the edge of the plate-like body, the impact mitigation effect can be satisfactorily exhibited in the case of lying down or falling down, and stored. Therefore, it is possible to satisfactorily regulate the movement of the plate-like body such as a glass substrate or protect the end portion. Moreover, since excessive compressive deformation and breakage of the contact member can be prevented, it is excellent in durability and can be used repeatedly over a long period of time.

  Next, embodiments of the present invention will be described based on examples shown in the drawings.

  1 is a perspective view of a container body and a lid body separated from a plate-like conveyance container according to the present invention, FIG. 2 is a plan view of the container body, FIG. 3 is a partially enlarged plan view of the previous figure, and FIG. FIG. 5 and FIG. 6 are cross-sectional views of the abutting member mounted in the same part, FIG. 7 is a plate-like body stacked via a spacer protection sheet. FIG. 8 is a partial enlarged cross-sectional view of the above.

  As shown in FIG. 1, the transport container A is opened upward, and a plate-like body B such as a glass substrate to be stored is stacked between each plate-like body via a protective sheet C for spacers. It consists of a flat rectangular container body 1 and a lid 2 attached to the opening 1a of the container body 1.

  The container body 1 is mainly formed of a synthetic resin foam having a buffering property, and a storage space is formed by the four side walls 11a, 11b, 11c, and 11d that rise from the bottom 10. The storage space has a slightly larger vertical and horizontal dimension than the plate B to be stored, and a depth that can store the required number of the plates B stacked via the protective sheet C as described above. Is formed. Usually, although it changes also with the thickness of the plate-shaped body B, in the case of the plate-shaped body B, such as a glass substrate of thickness 2-5 mm, for example, it forms relatively shallowly so that about 10 to several dozen sheets can be accommodated.

  Further, the lid body 2 is formed of a synthetic resin foam having a buffer property similar to that of the container main body 1, and as an attachment means for the opening 1 a of the container main body, in the case of FIG. The part 1 a is formed with a notch step 13 on the outside leaving the convex edge 12 on the inside, and a fitting part 21 protruding from the lower peripheral edge of the lid body 2 is on the outside of the convex edge 12. It is formed so that it may fit.

  Further, on the inner surface of the side wall of the container body 1, buffer-fixing contact members 4, 5, and 6 with which the edge portions of the stored plate-like body B abut on each other are elastically attached to the surface of the plate-like body B. It is attached to several places that can suppress the movement of the direction. Specifically, of the four side walls 11a, 11b, 11c, and 11d, the side walls 11a, 11c or 11b, 11d facing each other in at least one direction, preferably the side walls 11a facing each other in both the vertical and horizontal directions as shown in the figure. 11c and 11b, 11d, the contact members 4, 5 and 6 are provided so as to protrude from the inner surface of the side wall so as to suppress the movement of the plate-like body B in the surface direction. The projecting dimensions of the contact members 4, 5, 6 are set so that the plate-like body B to be accommodated can be positioned at a predetermined position by the end edge portion contacting.

  In the case of the figure, a single abutting member 4 is attached to the inner surface of the side walls 11a, 11c on the short side, and the center part in the longitudinal direction is attached to the inner surfaces of the side walls 11b, 11d on the long side. The abutting members 5 are provided at two positions with a gap between them, and the inner surfaces of both side walls adjacent to each other at the four corners are provided with a short side wall 11a or 11c and a long side wall 11b or 11d. An abutting member 6 having a continuous plane L shape is attached.

  The arrangement position, number, width, shape, etc. of the contact members 4, 5 and 6 for buffer fixation are not limited to those of the illustrated embodiment, and are effective in restricting the movement of the stored plate-like body B. Various implementations are possible within a certain range, and it is also possible to omit the contact members 5 at the four corners and arrange only the contact members 4 and 5 at each side. 5 can be omitted, and only the contact members 6 at the four corners can be provided.

  Each of the contact members 4, 5, 6 is made of a material having elasticity that can exhibit a certain degree of buffering against the plate-like body B that contacts the contact members 4, but in the case of the present invention, the container body 1 It is made of a high-density material that exhibits low elasticity compared to the above. As this high-density material, a synthetic resin foam of the same type or the same type as that of the container main body 1, particularly a high-density synthetic resin foam obtained by low-fold foaming as compared with the container main body 1 can be suitably used.

  In addition, a high-density material having a low elasticity and a material different from that of the container main body 1, for example, a different synthetic resin foam, a non-foamed elastic synthetic resin or a rubber material can also be used.

As means for attaching the contact members 4, 5 and 6 to the inner surface of the side wall, various mounting means such as an adhesive means or a fitting means using an adhesive or a double-sided adhesive tape can be used . As in the illustrated embodiment, the corresponding contact members 4, 5 and 6 are inserted from above into the inner surface of the side wall where the contact members 4, 5 and 6 are attached or continuously from both the inner surface and the bottom surface of the side wall. The recesses 14, 15, 16 that can be fitted are formed, and the contact members 4, 5, 6 are fitted into the recesses 14, 15, 16 . Accordingly , it is preferable that the corresponding contact members 4, 5, 6 are easily assembled and replaced.

  4 to 6 show an enlarged view of the attachment portion of the abutment member 14 before and after the attachment. As shown in FIG. 4, the concave portion 14 for attaching the contact member 4 is formed on the inner surface of the side wall. The bottom surface portion and the bottom surface portion of the contact member 4 are fitted into the concave portion 14 so that a stable mounting state is maintained. Yes. By forming the recesses 15 and 16 for mounting the other contact members 5 and 6 in the same manner as described above, a stable mounting state can be obtained. It is also possible to bond the contact members 4, 5, 6 in a state of being fitted to the recesses 14, 15, 16 by using the fitting means and the bonding means together.

  Further, the inside of the recesses 14, 15, 16 is formed wider than the opening width, and the fitting portions on the back side and the lower surface side of the contact members 4, 5, 6 fitted to the recesses correspond to the recesses. It is also possible to implement the structure in which the contact members 4, 5, and 6 can be mounted without being easily removed by being formed into a shape.

In the present invention, as described above, In no event to fit the contact member 4, 5 and 6 in the recess 14, 15 and 16 by fitting means, the back of the abutment member 4, 5, 6 And at least one of the inner surfaces of the recesses 14, 15, 16 facing this, for example, as shown in the figure, the inner surfaces of the recesses 14, 15, 16 are partially in contact with the other contact members 4, 5, 6. As a result, there is a gap between the back surface of the corresponding contact members 4, 5, 6 and the inner surfaces of the recesses 14, 15, 16 so that the corresponding contact members 4, 5, 6 are displaced outward. the projection 14a of受支 the abutment member 4,5,6 as tolerated, 15a, may be provided to 16a, when subjected to pressure in the outer-facing by the weight of the plate-like body B stored The protrusions 14a, 15a, 16a or the contact portions of the protrusions are easily elastically deformed, and the contact member 4 5 and 6 is assumed to be formed so as to be resiliently displaced outwardly within said air gap. That is, the abutting member 4, 5 and 6 that is resiliently displaced can be configured outwardly effect of the shock can be absorbed pressure acting on the contact member 4, 5 and 6 from the plate-like body B mitigation In addition, a dimensional error in manufacturing the container body 1 or shrinkage with time can be allowed. The height of the convex portions 14a, 15a, 16a is, for example, around 5 mm.

  The protrusions 14a, 15a, and 16a can be arbitrarily set in shape and arrangement, but as shown in the figure, the abutment members 4, 5, and 6 are recessed on the inner surface of the side wall. For example, it can be easily fitted to 14, 15, 16 by being inserted from above, and when pressure due to the weight of the plate-like body B is applied, it can be easily elastically deformed outward.

  In the case of the illustrated embodiment, a part of the peripheral portion of the bottom portion 10 of the container body 1, for example, as shown in the drawing, a portion along both side walls 11 a and 11 c on the short side and a side wall 11 b on the long side. A locking member (not shown) for storing and taking out the plate-like body B to be housed is inserted into the portion along the bottom of the plate-like body B placed on the bottom 11 so as to be inserted. Notched recesses 17 and 18 are provided. On the side where the notch recesses 17 and 18 are present, an interval that allows the insertion of the locking member between the edge of the housed plate-like body B and the inner surface of the side wall 11a, 11c or 11b. The protruding heights of the contact members 4, 5 and 6 are set so that S1 or S2 can be held.

  The outer surfaces of the container body 1 and the lid body 2 are provided with a plurality of concave grooves 19 and 29 for banding in a state where the plate body B is accommodated in the container body 1 and the lid body 2 is attached. It is formed at a position corresponding to the top and bottom.

  In addition, although illustration is abbreviate | omitted, it can also be set as the uneven surface divided into the upper surface of the bottom part 10 of the said container main body 1 by forming the groove in at least one direction of width and width as needed.

  In addition, as a constituent material of the said container main body 1 and the cover body 2, styrene modified polyolefin resin, polystyrene, high impact polystyrene, a styrene-ethylene copolymer, a styrene-maleic anhydride copolymer, a styrene-acrylonitrile copolymer Various synthetic resin foams such as polystyrene resins such as coalescence, polyolefin resins such as polyethylene, polypropylene, and ethylene-vinyl acetate copolymer, and polyester resins such as polyethylene terephthalate can be used. Especially, the molded object by the bead foam of a styrene modified polyolefin resin is used suitably. The styrene-modified polyolefin resin is obtained by impregnating and polymerizing a polyolefin resin particle with a styrene monomer. Among the styrene-modified polyolefin resins, a styrene-modified polyethylene resin is preferable, for example, a styrene component The ratio is 40 to 90% by weight, preferably 50 to 85% by weight, more preferably 55 to 75% by weight. The foaming ratio of the foam is preferably 3 to 50 times.

  A molded product of a styrene-modified polyolefin resin bead foam has strength compared to a molded product of polypropylene resin beads having the same expansion ratio, and has a low shrinkage ratio after molding of the container and good dimensional accuracy. Furthermore, there is an advantage that powder due to rubbing is less likely to be produced as compared with foamed molded products of styrene resin beads.

  The same material as the material used for the container main body 1 can be used as the material for the buffer fixing contact members 4, 5, 6. In this case, the contact members 4, 5, and 6 are made to have a higher density foam than the container body 1 to have a higher foaming ratio. In particular, when the same material as the container body 1 is used, in the bead foam molding, a part corresponding to the abutting members 4, 5 and 6 is used by using a molding method in which the expansion ratio is partially different. By foaming at a lower magnification than the main body 1, it can be molded integrally with the container main body 1.

  According to this transport container A, when the plate-like body B such as the base plate glass and the glass substrate for liquid crystal display is stored, first, the protective sheet C for the spacer is placed on the inner bottom portion 10, and the plate is placed thereon. The body B and the protective sheet C are alternately stacked and stored. As the protective sheet C, a flexible soft synthetic resin foam sheet, for example, a polyolefin resin foam sheet, is preferably used. The thickness of the foamed sheet varies depending on the thickness and type of the plate-like body B to be accommodated, but usually a thickness of 0.2 to 5.0 mm is preferably used.

  When the plate-like body B and the protective sheet C are alternately stacked and stored as described above, the contact member 4 having the end face of each plate-like body B on the inner surface of the side wall 11a, 11b, 11c, 11d of the container body 1. 5 and 6 are accommodated so as to be positioned and to restrict movement in the surface direction. Thereafter, the lid body 2 is attached to the opening 1a of the container body 1, and the entire transport container A is belted for transport.

  In this transportation, the entire plate-like body B housed inside is received by a wide surface, so that there is no risk of bending deformation of the plate-like body B, and the end surface of each plate-like body B is a contact member of the inner surface of the side wall. By abutting on 3, 4, and 5, the plate-like body B can be supported away from the inner surface of the side wall, and movement in the surface direction due to vibration during transportation can be restricted. In handling during transportation, for example, due to the weight of the plate-like body B accommodated, the pressure concentrates on the contact members 4, 5 and 6 due to the weight of the plate-like body B accommodated. However, since the contact members 4, 5, 6 are made of a high-density material having lower elasticity than the container body 1, the contact members 4, 5, 6 receive the pressure. There is no risk of excessive compression deformation or damage. In addition, the contact members 4, 5, 6 that have received the pressure are elastically received and supported by the side wall of the container main body 1 made of a synthetic resin foam having a lower density than this, Thus, even if the contact members 4, 5, 6 themselves have low elasticity, an excellent buffering effect can be exhibited.

  The transport container of the present invention can be suitably used for transporting and storing relatively large glass substrates such as glass plates for glass, liquid crystal displays and plasma displays, and other various plate-like bodies that are vulnerable to impact. .

It is a perspective view of the container main body and lid which the conveyance container of the plate-shaped body of this invention isolate | separated. It is a top view of a container main body. It is a one part enlarged plan view of a previous figure. It is an expansion perspective view before mounting | wearing of the contact member attachment part. It is sectional drawing of the mounting state of a contact member. It is sectional drawing of the previous figure VI-VI line. It is sectional drawing which accommodated the plate-shaped body accumulated through the protective sheet for spacers, and covered the cover body. It is a partial expanded sectional view same as the above.

Explanation of symbols

  A ... container for conveyance, B ... plate-like body, C ... protective sheet, 1 ... container body, 1a ... opening, 2 ... lid, 4, 5, 6 ... contact member, 10 ... bottom, 11a, 11b, 11c, 11d ... sidewall, 12 ... convex edge, 13 ... notch step, 14, 15, 16 ... recess, 17, 18 ... notch recess, 19, 29 ... recess, S1, S2 ... spacing.

Claims (5)

A synthetic resin foam container consisting of a container body that opens upward and a lid that is attached to the opening of the container body, with a plurality of plate-like bodies sandwiching a protective sheet between each plate-like body It is a container for transporting a plate-like body to be stored in a stacked state,
Buffer fixing contact members that contact the end portions of the plate-like bodies to be stored are provided at a plurality of locations on the inner surface of the side wall of the container body so as to protrude from the inner surface of the side wall . It is made of a material , and the corresponding contact member is fitted and attached to a concave portion on the inner surface of the side wall of the container body, and at least one of the rear surface of the corresponding contact member and the inner surface of the concave portion facing this is partially in contact with the other A container for transporting a plate-like body, characterized in that a convex portion is provided between the back surface of the abutting member and the inner surface of the concave portion to allow a displacement of the corresponding contact member to the outside of the container. In at least one opposing inner surface of the side wall of the square side walls of the container body, wherein the contact member of the buffer fixing to allow suppress the movement of the plate-like body of said phase counter direction, which are set with Item 2. A plate-like conveyance container according to Item 1.   The container for transporting a plate-like body according to claim 1 or 2, wherein the abutting member having a planar L shape is attached to the inner surface of the side wall at the four corners of the container body so as to protrude from the inner surface of the side wall.   The container for transporting a plate-like body according to any one of claims 1 to 3, wherein the abutting member is made of a synthetic resin foam foamed at a lower magnification than the container body. The said convex part is a cross-section circular arc-shaped vertical rib, The conveyance container of the plate-shaped object of any one of Claims 1-4 .

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