JP2005225512A - Transporting method for glass plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method which replaces a packaging method using wooden frame used for transportation including marine transportation of a number of glass plates for construction of a large-sized building or the like from a factory to a construction site. <P>SOLUTION: According to the method, the glass plates are stacked and placed in a steel frame of a rectangular parallelepiped, which is made up of members that compose at least respective sides of the rectangular parallelepiped, and the glass plates are strapped to the steel frame for transportation. The steel frame is manufactured in adjustment to the size of the glass plates to be transported in such a way that the length of each side of height and of width at the front face or the rear face of the frame does not exceed 60 cm plus the maximum size of the height and width of a package of the glass plates to be transported. The steel frame is used one time or more to transport the glass plates of such a size, but is disposed of once the transportation of the glass plate of that size is over. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method of transporting a large number of glass plates used for construction of a large building from a factory to one building site.

  A lot of glass plates are used in building construction, and a large building often has a number of several thousand in one building. For example, many dimensions such as 1,700 mm × 2,800 mm and a thickness of 20 mm can be seen. Such glass plates are sent directly from the manufacturing plant to the construction site, but all of them have been conventionally packed in wooden frames when they need to be transported by sea, such as imported from abroad. In other words, if it can be transported by car, it can be transported by a dedicated car equipped with a pallet for carrying glass on the loading platform, but in the case of sea transport, it is stored in a container and transported. Pack it. However, for example, about 200 kg of wood is required for packing a glass plate having a weight of 1,500 kg.

On the other hand, as a pallet for carrying glass as described above, for example, there is a pallet as disclosed in JP-A-7-267290. It has a sturdy structure made of steel and has a mechanism to hold and fix the glass plate placed diagonally, and it is used for marine transportation such as importing from abroad. It is difficult. In other words, in the case of marine transportation, a plurality of glass plate packages are transported with containers packed therein, but it is expensive to prepare a large number of such pallets simultaneously. Further, since the pallet itself does not correspond to the size of the glass plate, it is often necessary to use an extra size. However, the transport device disclosed in Japanese Patent Application Laid-Open No. 7-267290 can adjust the horizontal dimension parallel to the glass surface, but this causes a problem in terms of protecting the glass plate as will be described later.
JP-A-7-267290

  The crate packaging currently used exclusively for transporting glass plates by sea wastes resources and also costs disposal of the waste after unpacking. In addition, packing work and unpacking work are troublesome in terms of efficiency. In addition, the glass plate is lifted up to the floor where the building is to be attached in use, but unpacking the wooden crate packaging requires some equipment, and it is difficult to unpack at the site where the glass plate is installed. For this reason, unpacking at a place different from the construction site, changing to a carriage, transporting it with a car, and lifting it to the floor to be installed in the state of being placed on the carriage, there is a problem that it takes extra time. An object of the present invention is to provide a method for solving the problem of transporting a glass plate used for building such a building from a factory to a building site.

  The present invention solves the above problems, and in a method of transporting a large number of glass plates from a manufacturing factory to one construction site, inside a steel frame made of members constituting at least each side of a rectangular parallelepiped, A method of transporting glass plates stacked and secured to a steel frame with a string, wherein the steel frame is transported as one package with the length of each side on the front or back side thereof. It is manufactured in accordance with the size of the glass plate to be transported within a range not exceeding 60 cm from the maximum dimension of each of the vertical and horizontal directions, and is used once or more for transporting the glass plate of the size. A method of transporting a glass plate, characterized in that the glass plate is discarded after all the transport of the glass plate is completed.

  Here, the steel frame body is a portion of the support frame in which a plurality of backrest members that form a bottom surface and a back surface of the steel frame body and tilt and lean the glass plate and a plurality of crosspiece members that support the glass plate from below are provided. And one or more parts to be formed other than the part of the support frame of the steel frame. In addition, the weight of the steel frame does not exceed 20% of the weight of the glass plate to be packed, and the steel frame is used for the total number of packages for transporting the glass plate of the dimensions and the number of times of repeated use. It is also characterized in that a predetermined number is manufactured. In addition, the method for transporting the glass plate is also characterized in that transport is performed without removing the steel frame from the manufacturing plant to the construction site.

  In the method for transporting a glass plate according to the present invention, when a large number of glass plates used for building construction or the like are transported by sea, a steel frame having a welded structure manufactured from steel according to the dimensions of the glass plate to be transported is used. Decided to use and pack. As a result, the labor for packing and unpacking is reduced, and it is possible to bring the glass plate to the site where it is packed in the factory, so that the work efficiency can be remarkably improved. In addition, since it is sufficient to ensure durability enough to withstand repeated use several times, it is possible to make it lighter than conventional wooden frame packaging and reduce the transport weight. Furthermore, it is difficult to use the wooden frame waste as a resource, but the steel frame can be discarded in the form of steel scrap when one building is completed and the transportation of the glass plate of that dimension is completed. .

  The glass plate transport method of the present invention is intended to transport a large number of glass plates from a manufacturing plant to one building site. It is an alternative to conventional wooden crate packaging, especially when shipping by container. Moreover, as described above, it is difficult to bring the wooden frame packaging as it is to the construction site. However, according to the method of the present invention, the wooden frame packaging can be transported to the construction site as it is when shipped from the factory. Moreover, the target glass plate is used for building construction and the like, and is generally shipped directly from a glass factory to a customer by order production. Therefore, in the present invention, a steel frame that matches the size of the glass is manufactured at the stage of receiving an order for manufacturing the glass, and is packed and transported.

  There is a conventional method of transporting a glass plate attached to a steel pallet or mount, but the steel frame in the present invention is fundamentally different from the pallet or the like in that it is a semi-consumable product. That is, it is assumed that the glass plate having the dimensions is used once or more, but is discarded after the transportation of the glass plates having the dimensions is completed. In the case of a glass plate used for building construction, the entire amount is sometimes transported at once, but in many cases, it is transported in multiple times as construction progresses from the lower floor to the upper floor of the building. In this case, the steel frame returned from the customer to the manufacturing factory is used in principle for the second and subsequent transportation. Therefore, the number of manufactured steel frames is determined based on the total number of packages for transporting the glass plates having the dimensions and the number of times of repeated use.

  The steel frame in the present invention is as light as possible to reduce the transport weight and to reduce the amount of steel used. In addition to the weight of glass, the steel frame is subjected to centrifugal force when turning a curve when transported by an automobile, external force during handling, etc., but the strength of each part of the steel frame is 3 times the weight of the glass. What is necessary is just to design so that it can endure to about twice. As described above, the packaging body made of the steel frame in the present invention is transported as it is from the glass plate manufacturing factory to the installation site, so that the total weight of the packaging body can be raised to the upper floor at the building construction site. As such, the number of glass plates in one package is determined.

  1 and 2 are perspective views showing an example of the structure of a steel frame used in the method for transporting a glass plate of the present invention. FIG. 1 shows a support frame 1 and FIG. 2 shows a front frame 3 combined therewith. Two upper side members 41 and 42 are shown. The steel frame can be formed by assembling the support frame portion and the front frame portion and the upper side member at the time of packaging, and is disassembled again when unpacking. The main structural part of this steel frame is manufactured by welding with a lightweight steel such as a square steel pipe or a lip groove steel.

  A support frame 1 shown in FIG. 1 forms a bottom surface and a back surface of a steel frame body, and also supports a plurality of backrest members 111, 112, 113, 114 for tilting and leaning a glass plate, and a plurality of crosspiece members for supporting the glass plate from the bottom. 121, 122, 123, and 124 are provided. That is, the side members 13, 14, 15, 16, 17, 18, 19 form the periphery of the back and bottom surfaces of the steel frame, that is, the sides. A plurality of backrest members are arranged side by side, and the glass plate is inclined and leaned. In addition, a plurality of crosspiece members are usually provided side by side at positions corresponding to the backrest member, and support the glass plate from below.

  The glass plate is placed in a steel frame, and is further fixed to the steel frame with a string such as a flat packing tape. The backrest members 111, 112, 113, and 114 are held in an inclined state of 2 to 4 degrees so that the glass plate is stable even when the string is unwound. In addition, it is preferable for the stability of the glass plate that the crosspiece members 121, 122, 123, and 124 provided on the bottom surface are inclined from the bottom surface constituted by the side members 16, 17, 18, and 19. Usually, the angle θ between the side member and the backrest member is set to be a right angle. In addition, it is preferable to stick a rubber plate (not shown) as a cushioning material on the surfaces of the crosspiece member and the backrest member that contact the glass plate.

  As shown in FIG. 1, the backrest members 111, 112, 113, and 114 are provided at positions away from the rear surface constituted by the side members 13, 14, 15, and 16 in the front direction. This is to ensure stability even when the number of placed glass plates is reduced. That is, when glass plates are sequentially used at the construction site and the number of glass plates remaining on the support frame decreases, the center of gravity of the support frame moves to the back side and easily falls later. The center of gravity of the glass plate placed is closer to the back as the number of sheets decreases, but when the number of sheets decreases, the weight of the glass plate itself decreases, and the risk of falling due to the balance of these conflicting conditions is determined. Normally, the risk of falling down is maximized when several glass plates remain, but even at this time, it is designed so as not to fall over even if it is tilted to some extent (usually 20 degrees) in the backward direction.

  The above is the basic structure of the support frame, but it is preferable to further attach a plurality of pillow materials 201, 202, 203 in the depth direction to the bottom surface as seen in FIG. As a result, since the bottom surface of the steel frame is not directly grounded, it is possible to insert a rope or sling for hanging with a fork or crane of a forklift without laying a dunnage (ten thousand bars) when unloading.

  Further, the support frame is provided with reinforcing members as appropriate on the back and bottom surfaces and between these surfaces. The backrest members 111, 112, 113, 114 and the crosspiece members 121, 122, 123, 124 also serve to reinforce, but this reinforces the shortage. In FIG. Diagonal reinforcements 211 and 212 are provided between them. Further, although two longitudinal reinforcing members 221 and 222 are provided on the back surface, a reinforcing material in the lateral direction may be provided on the back surface, for example, other than the illustrated case.

  On the other hand, the front frame 3 shown in FIG. 2 forms the front surface of the steel frame, and the basic configuration is from the side member 31 constituting the upper side of the front surface and the side members 32 and 33 constituting the vertical side. Become. Further, in the example of FIG. 2, the lateral reinforcing material 34 for reinforcement is provided, but instead of this, the purpose of reinforcement can be achieved by providing an oblique reinforcing material at two corner portions, for example. The front frame is coupled to the support frame by inserting lower ends 321 and 331 of the side members 32 and 33 into holes 231 and 232 (FIG. 1) provided in the support frame 1.

  Also, the two upper side members 41 and 42 shown in FIG. 2 constitute the side in the depth direction of the upper surface of the steel frame, and the side members 14 and 15 of the support frame 1 and the side member 32 of the front frame 3. , 33 by inserting protrusions 411, 421 provided at both ends of the upper side member into holes 141, 151, 322, 332 provided at the upper ends of the support frame 33 and the front frame, respectively.

  On the other hand, the portion shown in FIG. 2 is not separable into the front frame 3 and the upper side members 41 and 42 as described above, and these may be combined in advance. That is, the portions indicated as the holes 322 and 332 and the protrusions 411 and 421 may be welded without providing them. Whether the parts shown in FIG. 2 are integrated or can be disassembled as described above may be selected in consideration of the work procedure and the convenience of storing the assembly members. The part shown in FIG. 2 can be further finely disassembled. Eventually, the part to be formed other than the part of the support frame 1 of the steel frame body is assembled by one or more parts. If it is good.

  As described above, the steel frame has a structure in which a part of the support frame on which the glass plate is placed and one or more parts to be formed other than the part of the support frame of the steel frame are combined. Easy to assemble and disassemble during packing and unpacking. The method of inserting the other projection into the hole provided on one side as shown in FIGS. 1 and 2 as a method for connecting the members to each other in assembly can be done without packing or unpacking. Although it is preferable, various methods such as screwing are possible.

  FIG. 3 is a perspective view of a packing body in which a glass plate 6 is housed in a steel frame body 5. The glass plate is fixed to the steel frame by a string such as a flat tape for packing. However, as shown in FIG. 3, it is necessary to hang the string 7 together with the support frame 1 (FIG. 1) for binding. Convenient. In order to prevent lateral displacement between the stacked glass plates, it is preferable to tie the glass plates themselves in the horizontal direction, but this is not shown in FIG. As described in Japanese Patent Application Laid-Open No. 7-267290, the conventional glass transport pallet is equipped with various glass plate pressing mechanisms for fixing the glass plate, which are used in the present invention. Such a glass plate pressing mechanism that leads to an increase in weight and cost is not provided in the steel frame. The steel frame of the present invention is brought in as it is from the glass manufacturing plant to the site where the glass is used, and the work of binding the glass plate and the steel frame is performed in the manufacturing plant during the entire transportation process. Therefore, the trouble of fixing with a string does not matter.

  As described above, the basic structure of the steel frame is a member constituting each side (ridge) of the rectangular parallelepiped, and a plurality of backrest members and crosspiece members provided on the inside of the rectangular parallelepiped for placing a glass plate It consists of Further, a reinforcing member, a pillow member provided on the bottom surface, and the like are appropriately provided. As described above, the steel frame in the present invention is composed of members constituting at least each side of the rectangular parallelepiped, and as a result, as shown in FIG. Packed in a form surrounded by edges. Therefore, the probability that an obstacle will hit the glass plate from the outside as compared with the packaging method in which nothing is in the direction of the corner of the glass plate as illustrated in the state of accommodating the glass plate in JP-A-7-267290 described above. Can be significantly reduced. Note that the side members located on each side of the rectangular parallelepiped do not impair the protection function of the glass plate housed inside even if the side members are displaced from the exact position, for example, several cm geometrically due to design reasons such as welding. Of course, there is no limit.

  The steel frame used in the present invention is manufactured in accordance with the dimensions of the glass ordered to be manufactured as described above. Specifically, the steel frame is a front or back side of the steel frame. The length of the glass plate is set to a range not exceeding 60 cm from the maximum dimension of each of the vertical and horizontal directions of the glass plate transported as one package. That is, the dimensions of the glass plates used for building a single building may all be the same, but they may be of several types. In this case, for glass plates with completely different dimensions, a structural frame is manufactured to match the respective dimensions. However, if the difference in dimensions between each side is within about 30 cm, for example, it is impossible to bend the laminated glass plates with excessive force. There is no stress, and it is more convenient to transport them together as a single package. At this time, the dimensions of the steel frame are determined based on the maximum vertical and horizontal dimensions of the glass plate transported as one package.

  Although the dimensional relationship of said steel frame is shown in FIG. 3, the dimension A and B of each side of the steel frame parallel to each side of the glass plate accommodated are the values of these sides of the glass plate. Each of the maximum dimensions C and D shall not exceed 60 cm. This is because even if it is larger than this, the function of protecting the accommodated glass plate is not improved, and it takes up more space for the container and increases the weight of the steel frame. As described above, since the glass plate package is placed with a slight inclination, the steel frame and the glass plate are not strictly parallel in the vertical direction. However, since the inclination angle is small and the influence on the dimension is small, it is described here as parallel for convenience. Further, as described above, it is common to attach the pillows 201, 202, 203 to the bottom surface of the steel frame, but the dimensions thereof are not included in the dimension B of the vertical side of the steel frame.

  The steel frame of the present invention can be reduced in weight by using a steel material having a minimum cross-sectional dimension in strength as a member coupled with the simple structure having the minimum frame as described above. The weight of the steel frame can be secured within 20% of the weight of the glass plate to be packed. For example, the steel frame body is usually about 150 kg and about 10% with respect to the glass plate weight of 1,500 kg, and in most cases, the weight is within 15%. Conventional steel transporters for transporting glass plates are based on the premise of semi-permanent use, and are usually made rugged and generally have their own weight greater than the weight of transportable glass plates. By adopting a method in which the steel frame in the present invention is discarded after being used several times, such weight reduction can be realized for the first time, that is, economically.

  In the case of wooden frame packaging, the above example of the weight of the glass plate of 1,500 kg requires about 200 kg of wood. Since it is difficult to process such a large amount of wood at the site where the glass plate is used, it is unpacked at another place and loaded into a cart or the like and brought to the construction site. In the transportation method of the glass plate of the present invention, it can be transported without removing the steel frame from the manufacturing factory to the construction site, and in the place where it is used in the state where it is packed in the manufacturing factory, that is, in the building construction. You can bring it to the designated floor. This eliminates the need for extra work for dismantling the wooden frame and transshipping the glass. In addition, the waste wood is costly to dispose of, but the steel frame can be treated as valuable scrap during disposal.

The perspective view which shows the part of the support frame 1 in the steel frame used for the transportation method of the glass plate of this invention. The perspective view which shows the part of a front frame and an upper side member in the steel frame used for the transportation method of the glass plate of this invention. A perspective view of a packaging body in which a glass plate is stored in a steel frame.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support frame 3 Front frame 5 Steel frame 6 Glass plate 7 String 13, 14, 15, 16, 17, 18, 19 Side member 31, 32, 33 Side member 34 Lateral reinforcement 41, 42 Upper side member 111, 112 , 113, 114 Back member 121, 122, 123, 124 Cross member 141, 151 Hole 201, 202, 203 Pillow material 211, 212 Diagonal reinforcement member 221, 222 Vertical reinforcement member 231, 232 Hole 321, 331 Lower end 322, 332 Hole 411, 421 protrusion

Claims (5)

In a method of transporting a large number of glass plates from a manufacturing plant to a single construction site, a steel frame is placed with a glass plate placed on top of a steel frame made of members constituting at least each side of a rectangular parallelepiped. It is a method of transporting the steel frame fixed to the body, wherein the length of each side of the front or back surface of the steel frame is in a range not exceeding 60 cm from the maximum dimension of each of the vertical and horizontal directions of the glass plate transported as one package. , Manufactured according to the size of the glass plate to be transported and used once or more for transporting the glass plate of the size, but discarded after the transport of the glass plate of the size is completed A method for transporting a glass plate, characterized in that it is a thing. The steel frame is formed of a bottom surface and a back surface, and a portion of a support frame provided with a plurality of back members that tilt and lean the glass plate and a plurality of cross members that support the glass plate from below, and a steel frame 2. The method for transporting a glass plate according to claim 1, wherein the glass plate is assembled by one or more parts to be formed other than the part of the support frame of the frame body. The method for transporting a glass plate according to claim 1 or 2, wherein the weight of the steel frame does not exceed 20% of the weight of the glass plate packed thereby. The glass frame according to any one of claims 1 to 3, wherein the number of steel frames is determined based on the total number of packages for transporting glass plates of the dimensions and the number of times of repeated use. Board transportation method. The method for transporting a glass plate according to any one of claims 1 to 4, wherein the transport is performed without removing the steel frame from the manufacturing factory to the construction site.

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