Glass sheet conveying unit

Abstract

The glass plate conveying unit (1) includes: a bundling tray (3) for loading a glass plate stack (2) having multiple glass plates (G); a conveying container (5) for housing a glass plate bundle (4) obtained by loading the glass plate stack (2) on the bundling tray (3); and a fixing tool (10) for fixing the bundling tray (3) to the upper part of the conveying container (5).

Description

Technical Field

[0001] This invention relates to a glass plate conveying unit, and more specifically to a glass plate conveying unit comprising a packaging pallet for loading stacked glass plates and a conveying container. Background Technology

[0002] As is known, in the field of glass plate bundling, a process is performed in which a glass plate stack, consisting of multiple glass plates arranged alternately with backing paper, is loaded onto a bundling pallet. Furthermore, when transporting these glass plates, a process is performed in which the glass plate stack is loaded into a bundling unit, resulting in a glass plate bundle, which is then contained in a transport container.

[0003] When using this transport container for transport, it is necessary to pre-fix the bundling pallet inside the transport container. As a method for this purpose, for example, Patent Document 1 discloses placing a strapping band across the top of the bundling pallet and fixing both ends of the band to the bottom (floor) inside the transport container.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2014-122074 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] However, the method of fixing both ends of the strapping to the floor of the conveying container as disclosed in Patent Document 1 has created a space problem due to the increasing size of the strapping trays as the glass plates have become larger.

[0009] Furthermore, according to the method disclosed in this document, long strapping is required to secure the strapping across the top of the packaging pallet and fix both ends to the floor of the transport container. Moreover, given the increasing size of the packaging pallet along with the increasing size of the glass plates, the strapping must be further lengthened. Therefore, it is difficult to maintain the packaging pallet in a stable and fixed state against vibrations and swaying during transport.

[0010] Based on the above viewpoints, the objective of this invention is to provide a glass plate conveying unit that can avoid the problem of space constraints for fixing the bundled pallet within the conveying container, and can maintain the bundled pallet in a stable and fixed state in the face of vibration and shaking during conveying.

[0011] Solution for solving the problem

[0012] The present invention, made to solve the above-mentioned problems, is a glass plate conveying unit comprising: a bundling tray for loading a glass plate stack having a plurality of glass plates; and a conveying container for receiving a bundle of glass plates obtained by loading the glass plate stack on the bundling tray. The glass plate conveying unit is characterized in that it has a fixing tool for fixing the bundling tray to the upper part of the conveying container.

[0013] With this structure, even as the glass plates become larger and the bundled packages become larger, the upper part of the transport container, which has available space, is effectively utilized for securing the bundled pallet. This avoids the problem of space constraints for securing the bundled pallet within the transport container. Furthermore, the length of the securing tool is only sufficient to reach the upper part of the transport container from the bundled pallet, thus ensuring the bundled pallet remains stably fixed despite vibrations and shaking during transport.

[0014] In this structure, preferably, the glass plate stack is loaded onto the bundling pallet in an inclined position, with the two side walls of the conveying container tilted relative to each other, within the conveying container.

[0015] In this way, even large glass panels that are larger than the height and width of the container's internal space can be accommodated.

[0016] In this structure, preferably, the first end of the fixing tool is fixed to the corner between the side wall and the top wall of the glass plate laminate located on the front side of the conveying container.

[0017] In this way, the ample free space formed on the front side of the glass plate stack within the transport container is located near the corner where the first end of the fixing tool is fixed. Therefore, when the operator or others fix the first end of the fixing tool at the corner, the glass plate stack will not become an obstacle due to the presence of this ample free space. This improves the efficiency of the fixing operation.

[0018] In this structure, preferably, the first end of the fixing tool is located on the front side of the glass plate stack inside the conveying container.

[0019] In this way, by securing the first end of the fixing tool to the corner inside the conveying container with the aid of a belt or the like, contact between the laminate and the belt can be prevented. Therefore, it is possible to prevent damage to the glass plates included in the laminate that would occur upon contact with the belt.

[0020] In the above structure, the packaging tray may also have a back support portion that supports the glass plate stack from the back side, and the second end of the fixing tool may be fixed to the back support portion.

[0021] In this way, the second end of the fixing tool can be effectively fixed using the back support portion, which is a highly rigid part of the strapping tray. This ensures that the second end of the fixing tool is securely fixed and maintains a stable fixation.

[0022] In the above structure, the packaging tray may also have a base portion disposed on the bottom side of the glass plate stack, and the second end of the fixing tool may be fixed to the base portion.

[0023] In this way, the base portion of the strapping tray, which is a highly rigid part, can be effectively used to fix the second end of the fixing tool. As a result, the second end of the fixing tool can be firmly fixed, and a stable fixing state can be ensured.

[0024] In the above structure, it is preferred that the fixing tool is made of metal.

[0025] In this way, compared with the previous strapping, the rigidity of the fixing tool is greatly improved, and the loosening of the fixing tool during transportation is suppressed.

[0026] Invention Effects

[0027] According to the present invention, a glass plate conveying unit is provided that can avoid the problem of space constraints for fixing the bundled pallet within the conveying container and can maintain the bundled pallet in a stable and fixed state in the face of vibration and shaking during conveying. Attached Figure Description

[0028] Figure 1 This is a longitudinal sectional front view of the glass plate conveying unit before showing the characteristic structure of the embodiments of the present invention.

[0029] Figure 2 According to Figure 1 The longitudinal section side view obtained by cutting along the AA line.

[0030] Figure 3 This is a longitudinal sectional front view showing the glass plate conveying unit according to the first embodiment of the present invention.

[0031] Figure 4 According to Figure 3 The longitudinal section side view obtained by cutting along the CC line.

[0032] Figure 5 This is a longitudinal sectional front view showing the glass plate conveying unit according to the second embodiment of the present invention.

[0033] Figure 6 According to Figure 5 The longitudinal section side view obtained by cutting along the DD line. Detailed Implementation

[0034] Hereinafter, the glass plate conveying unit according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0035] The glass plate conveying unit 1 in this embodiment is... Figure 1 as well as Figure 2 The glass plate conveying unit 1' shown is obtained by adding a feature structure. Here, we will first describe the glass plate conveying unit 1' before adding the feature structure. It should be noted that, Figure 1 This is a longitudinal sectional front view showing the glass plate conveying unit 1'. Figure 2 According to Figure 1 The longitudinal section side view obtained by cutting along the AA line.

[0036] As shown in the figures above, the glass plate conveying unit 1' includes: a bundling tray 3, which holds a glass plate stack 2 formed by alternating arrangements of multiple glass plates G and backing paper (or resin sheet) H; and a conveying container 5, which holds a glass plate bundle 4 obtained by loading the glass plate stack 2 onto the bundling tray 3. The dimensions (longitudinal dimension × width dimension) of the glass plate G are, for example, 2200mm × 2500mm or more, and are large. The dimensions of the glass plate G are preferably 2400mm × 2800mm or more, more preferably 2800mm × 3100mm or more, and most preferably 2900mm × 3300mm or more.

[0037] The packaging tray 3 has the following main components: a base 6 disposed on the bottom side of the glass plate laminate 2 and bearing its weight; a back support 7 erected on the upper part of the base 6 and supporting the glass plate laminate 2 from the back side; and a pedestal 8 fixed to the upper part of the back support 7 and placing the glass plate laminate 2 on it. It should be noted that the lower end of the pedestal 8 is located lower than the upper end of the base 6.

[0038] The base portion 6 has a rectangular frame portion 6a in plan view and multiple reinforcing members (not shown) formed of square tubes or the like that reinforce the frame portion 6a. The back support portion 7 has multiple grid members 7a arranged below the pedestal portion 8 and formed of square tubes or the like that that constitute the skeleton. The pedestal portion 8 has an upper pedestal portion 8a that supports the planar portion of the glass plate laminate 2 and a lower pedestal portion 8b that supports the bottom portion of the glass plate laminate 2.

[0039] The transport container 5 has an internal space (reception section) N that is rectangular in longitudinal section. This internal space N is surrounded by a bottom wall 5A, a top wall 5B, two side walls 5C and 5D, and an end wall 5E. The height of the internal space N (distance from the bottom wall 5A to the top wall 5B) is approximately 2660 mm, and the width (distance between the two side walls 5C and 5D) is approximately 2340 mm. It should be noted that this transport container 5... Figure 2 On the side opposite to the depth direction shown (arrow B direction), there is a loading / unloading outlet (not shown) for moving the glass plate bundles 4 in and out. Multiple glass plate bundles 4 are arranged in the internal space N.

[0040] The following shows the relationship between the glass plate bundle 4 and the transport container 5. The glass plate stack 2 is in an inclined posture, tilted between the two side walls 5C and 5D of the transport container 5. Figure 1 The glass plate stack 2 (upper pedestal portion 8a) is loaded onto the packaging pallet 3 in an inclined posture. The glass plate stack 2 is positioned to mimic the diagonal of the internal space N of the transport container 5. Specifically, the inclination angle of the glass plate stack 2 relative to the horizontal plane is preferably within 10° greater or less than the inclination angle of the diagonal of the internal space N of the transport container 5 relative to the horizontal plane, and more preferably within 5° greater or less than 5°. It should be noted that the gap between the side walls 5C, 5D of the internal space N of the transport container 5 and the base portion 6 is, for example, 10–30 mm.

[0041] Hooks or other locking components 9 are fitted at the corner X of the side wall 5C (its inner side) and the top wall 5B (its top surface) on the front side of the glass plate laminate 2. It should be noted that the packaging pallet 3 is placed on the bottom wall 5A (its floor surface) of the transport container 5.

[0042] [First Implementation Method]

[0043] Figure 3 This is a longitudinal sectional front view of the glass plate conveying unit 1 of the first embodiment of the present invention with added feature structures. Figure 4 According to Figure 3 The longitudinal sectional side view obtained by cutting along the CC line. It should be noted that, regarding the glass plate conveying unit 1 and the previously described... Figure 1 as well as Figure 2 The common components of the illustrated glass plate conveying unit 1' are, Figure 3 as well as Figure 4 The same reference numerals are used in the accompanying drawings, and their detailed descriptions are omitted.

[0044] like Figure 3 as well as Figure 4As shown, the glass plate conveying unit 1 includes a fixing tool 10 for securing the bundling tray 3 to the upper part of the conveying container 5. In this embodiment, the fixing tool 10 connects and fixes the corner X locking member 9, which is assembled inside the conveying container 5, to the back support portion 7 of the bundling tray 3. Therefore, for the fixing tool 10, the upper end portion 10a, which is the first end portion, is fixed to the corner X locking member 9, and the lower end portion 10b, which is the second end portion, is fixed to the back support portion 7.

[0045] In detail, the fixing tool 10 includes a frame body 11 fixed to the lower rear part of the rear support 7 and a rod-shaped body 12 extending in a straight line from the frame body 11 toward the corner X inside the conveying container 5. The frame body 11 is fixed to a plurality of grid members 7a of the rear support 7 in a detachable manner using fastening members such as bolts. As for the rod-shaped body 12, its lower end is fixed to the frame body 11 by welding or the like, and its upper end (first end) 10a is fixed to the locking member 9 in a detachable manner using fittings, high-strength straps, or the like.

[0046] The back support portion 7 extends from one end of the glass plate laminate 2 in the width direction. Figure 4 The frame body 11, which extends from the right end (2a) in the width direction, is fixed to the protruding part 7x with the fixing tool 10. The frame body 11 and the rod-shaped body 12 are made of metals such as iron and stainless steel, and the locking member 9 is also made of metals such as iron and stainless steel.

[0047] Next, the effects of the glass plate conveying unit 1 in the first embodiment will be explained.

[0048] In this embodiment, because the glass plate G is large and the glass plate bundle 4 is also large, the gap between the side walls 5C and 5D of the internal space N of the transport container 5 and the base portion 6 is small, resulting in insufficient free space on the bottom wall 5A (floor surface) inside the transport container 5. Therefore, it is difficult to fix the bundle tray 3 on the bottom wall 5A. In contrast, in this embodiment, there is a wide free space S on the front side of the glass plate stack 2. This free space S is located near the assembly part of the locking member 9. Therefore, the operator can connect and fix the upper end 10a of the fixing tool 10 to the locking member 9 without being disturbed by the glass plate stack 2, thanks to the presence of this free space S. As a result, the work efficiency when fixing the upper end 10a of the fixing tool 10 is improved.

[0049] In this embodiment, by adopting the aforementioned inclined posture of the glass plate stack 2, even large glass plates G that are larger than the height and width of the internal space N of the transport container 5 can be accommodated.

[0050] In this embodiment, the lower end 10b of the fixing tool 10 is effectively fixed by utilizing the back support 7, which is a highly rigid part within the bundling tray 3. Furthermore, the lower end 10b of the fixing tool 10 is formed by a highly rigid frame body 11. Through the synergistic effect of these features, the lower end of the fixing tool 10 can be securely fixed, and a stable fixing state can be ensured.

[0051] In this embodiment, unlike conventional long strapping, the length of the securing tool 10 is sufficient to extend from the back support 7 of the strapping tray 3 to the corner X inside the transport container 5. Furthermore, since the securing tool 10 is made of metal, its rigidity is significantly improved compared to conventional strapping. Through the synergistic effect of these features, the strapping tray 3 can be stably and securely maintained against vibrations and swaying during transport.

[0052] [Second Implementation]

[0053] Figure 5 This is a longitudinal sectional front view showing the glass plate conveying unit 1 of the second embodiment of the present invention with added feature structures. Figure 6 According to Figure 5 The longitudinal section side view obtained by cutting along the DD line.

[0054] As shown in the figures above, the glass plate conveying unit 1 of this second embodiment differs from the glass plate conveying unit of the first embodiment in that the lower end 10b of the fixing tool 10 is fixed to the base portion 6. Specifically, the frame portion 6a of the base portion 6 extends from one end 2a in the width direction of the glass plate laminate 2 (see figure). Figure 6 The frame 11 of the fixing tool 10 is detachably fixed to the side of the protruding portion 6x via a bracket 13. It should be noted that, alternatively, the lower end 10b of the fixing tool 10 may be detachably fixed to the upper surface of the protruding portion 6x. Other structures and effects are the same as in the first embodiment described above; therefore, regarding the common components in both embodiments, Figure 5 as well as Figure 6 The same reference numerals are used in the accompanying drawings, and their descriptions are omitted.

[0055] The glass plate conveying unit 1 according to the embodiment of the present invention has been described above, but the present invention is not limited thereto, and various modifications can be made without departing from its spirit.

[0056] In the above embodiments, the fixing tool 10 is constructed using the frame body 11 and the rod-shaped body 12. However, in other embodiments, multiple rod-shaped bodies or a long frame body can also be used to construct the fixing tool. Furthermore, the fixing tool 10 is not limited to being made of metal; it can also be constructed using flexible fastening tools such as cable ties. Even so, in this invention, the length of the fastening tool can be shortened, thus enabling the bundled pallet to be stably fixed despite vibrations and shaking during transport.

[0057] In the above embodiments, the upper end (first end) 10a of the fixing tool 10 is fixed to the corner X inside the conveying container 5. However, the upper end 10a can also be fixed to the upper part of the top wall 5B, side walls 5C, and 5D inside the conveying container 5. In addition, the lower end (second end) 10b of the fixing tool 10 is fixed to the lower rear part of the back support 7 or the rear part of the base 6. However, the lower end 10b can also be fixed to the front part of the back support 7 or the front part of the base 6. Moreover, the lower end 10b can also be fixed to the upper part of the back support 7.

[0058] In the above embodiments, the locking member 9 is a short-sized member extending into the region near the corner X inside the conveying container 5. However, the locking member 9 may also be a long-sized member extending into the region of the free space S. In such a case, the vertical relationship between the first end 10a and the second end 10b of the fixing tool 10 may be reversed.

[0059] In the above embodiments, the lower end 10b (frame body 11) of the fixing tool 10 is fixed to the back support portion 7 and the base portion 6 respectively. However, the lower end 10b of the fixing tool 10 can also be fixed across both the back support portion 7 and the base portion 6.

[0060] In the above embodiments, the fixing tool 10 is fixed to one end of the glass plate laminate 2 in the width direction. However, the fixing tool 10 can also be fixed to the other end of the glass plate laminate 2 in the width direction, or it can be fixed to both one end and the other end of the glass plate laminate 2 in the width direction. In addition, the number of fixing tools 10 is not particularly limited.

[0061] In the above embodiments, the bundling tray 3 is placed on the bottom wall 5A inside the conveying container 5. Alternatively, a pedestal panel, for example, with a rubber sheet covering the upper surface of the panel, can be laid on the bottom wall 5A and the bundling tray 3 can be placed on the panel.

[0062] In the above embodiments, the back support portion 7 is shown extending from one end of the glass plate laminate 2 in the width direction. Figure 4In the case where the right end of the back support 7 extends outward in the width direction, and the frame body 11 of the fixing tool 10 is fixed at the extended portion 7x, the back support 7 may not have an extended portion 7x. In the case where the back support 7 does not have an extended portion 7x, the frame body 11 of the fixing tool 10 can be fixed to the end of the back support 7 in the width direction of the glass plate laminate 2.

[0063] In the above embodiments, the example shown is that the conveying container 5 has a top wall 5B. However, the conveying container 5 can also be an open-top container. Specifically, the conveying container 5 may not have a top wall 5B, but instead has an opening in the top plate. In this case, the first end 10a of the fixing tool 10 can be fixed to the upper part of the side wall 5C, and preferably to the upper end of the side wall 5C.

[0064] Explanation of reference numerals in the attached figures

[0065] 1 Glass plate conveying unit

[0066] 2. Glass plate laminate

[0067] 2a The end of the glass plate laminate in the width direction

[0068] 3. Bundling pallets

[0069] 4. Glass plate bundle

[0070] 5. Containers for conveying

[0071] 5B Top Panel Wall

[0072] 5C sidewall

[0073] 6 abutment

[0074] 6x The protruding part of the base section

[0075] 7. Rear support section

[0076] 7x Extended portion of the rear support

[0077] 9. Locking components

[0078] 10 Fixing tools

[0079] 10a Upper end (first end) of the fixing tool

[0080] 10b The lower end (second end) of the fixing tool

[0081] G glass plate

[0082] N. Internal space of the transport container

[0083] X Corner inside the conveying container

[0084] α is the tilt angle of the glass plate laminate.

Claims

1. A glass plate conveying unit comprising: a bundling tray for loading a glass plate stack having a plurality of glass plates; and a conveying container for receiving a bundle of glass plates obtained by loading the glass plate stack onto the bundling tray. The glass plate conveying unit is characterized in that... The glass plate conveying unit includes a fixing tool for securing the bundled tray to the upper part of the conveying container. Inside the transport container, the glass plate stack is loaded onto the bundling pallet in an inclined position, tilted between the two side walls of the transport container. The first end of the fixing tool is fixed to the corner between the side wall and the top wall of the glass plate laminate located on the front side of the conveying container.

2. The glass plate conveying unit according to claim 1, wherein, The packaging tray has a back support portion that supports the glass plate stack from the back side, and the second end of the fixing tool is fixed to the back support portion.

3. The glass plate conveying unit according to claim 1 or 2, wherein, The packaging tray has a base portion disposed on the bottom side of the glass plate stack, and the second end of the fixing tool is fixed to the base portion.

4. The glass plate conveying unit according to claim 1 or 2, wherein, The fixing tool is made of metal.

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