JP6872156B2 - Pallets for packing glass plates and packing bodies for glass plates - Google Patents

Description

The present invention relates to a pallet for packing a glass plate and a glass plate packing body.

In recent years, with the increase in size and thinning of glass substrates for flat panel displays, it has become the mainstream to pack glass substrates in a vertically laminated state. Further, as a pallet for packing the glass substrates in a vertically stacked state, a bottom support portion for supporting the bottom of the glass substrate laminate formed by laminating a plurality of glass substrates in the vertical position and a glass substrate laminate A back plate supporting portion for supporting the back surface of the glass substrate and a cushioning plate (also referred to as a back plate) disposed between the back surface supporting portion and the glass substrate laminate are known (for example, Patent Document 1). See).

Japanese Unexamined Patent Publication No. 2011-63274

By the way, when the glass substrate laminate is packed using a pallet provided with a cushioning plate as in Patent Document 1 and the packed body is transported, the glass substrate may be damaged during transportation. One of the causes of such damage to the glass substrate is considered to be the misalignment of the cushioning plate during transportation.

Further, when the glass substrate is damaged, the upper side of the cushioning plate falls down to the front side at the time of unpacking. When the cushioning plate collapses, it becomes difficult to dispose of the damaged glass substrate, or it becomes difficult to take out the undamaged glass substrate.

For the above reasons, it is desirable that the cushioning plate is firmly fixed to the back support portion. Here, the cushioning plate is usually fixed to the back support portion by adhesion. Further, Patent Document 1 describes that a groove for absorbing thermal deformation is provided on the side of the buffer plate as a technique for preventing peeling of the adhesive surface due to a difference in materials.

However, it has been difficult to securely fix the cushioning plate to the back support portion by adhesion. This is because the fixing means using an adhesive may not be suitable for fixing members made of different materials. That is, the back support portion is usually made of metal because it is composed of the frame member of the pallet for packing the glass substrate, whereas the cushioning plate is used for the purpose of absorbing impact on the glass substrate laminate. It is often made of a material with relatively high elasticity (low rigidity) such as foamed resin. Therefore, the difference in thermal deformation due to the temperature change during transportation tends to be large between the back support portion and the cushioning plate. In this case, even if a structure (groove) for absorbing thermal deformation is provided as described in Patent Document 1, it is difficult to sufficiently prevent peeling of the adhesive surface.

In view of the above circumstances, in the present specification, for glass plate packaging, which can prevent damage to the glass plate caused by the cushioning plate shifting from the back support portion and safely transport the glass plate laminate for a long period of time. Providing a pallet is a technical problem to be solved by the present invention.

The solution of the technical problem is achieved by the pallet for packing a glass plate according to the present invention. That is, this pallet is provided via a bottom support portion that supports the bottom of a glass plate laminate formed by laminating a plurality of glass plates in a vertical position, a buffer plate that abuts on the back surface of the glass plate laminate, and a buffer plate. In a glass plate packing pallet provided with a back support portion that supports the back surface of the glass plate laminate, one of the back support portion and the cushioning plate is provided with a protrusion that protrudes toward the other, and the other. Is characterized by the fact that a fitted portion that fits with the protrusion is provided.

As described above, in the pallet according to the present invention, one of the back surface support portion and the cushioning plate is provided with a protruding portion protruding toward the other, and the other is provided with a fitted portion that fits with the protruding portion. Since both the back support portion and the cushioning plate support the back surface of the glass plate laminate formed in a vertical posture, the protrusion and the fitted portion are vertically above or below due to the weight of the cushioning plate. It will be in a state of being engaged on the side. As a result, a sufficiently large frictional force can be generated between the protrusion and the fitted portion, and the cushioning plate and the back support portion can be fixed to each other. If such a fixing form is adopted, it is not necessary to fix the cushioning plate to the back support portion by adhesive, so that the engagement state between the protrusion and the fitted portion is maintained even when the temperature changes during transportation. However, the respective members can freely undergo thermal deformation without being restrained from each other. Therefore, it is possible to maintain a predetermined fixing force, prevent a problematic displacement of the cushioning plate, and prevent damage to the glass plate during transportation as much as possible.

Further, the pallet for packing a glass plate according to the present invention is provided with a protrusion on the back support portion and a fitting portion on the cushioning plate, and the protrusion height of the protrusion is equal to or less than the thickness dimension of the cushioning plate. It may be the one that is.

By setting the protrusion height of the protrusion in this way, even if the fitted portion is a through hole, the protrusion protrudes from the front surface of the cushioning plate (the surface on the side that comes into contact with the glass plate laminate). The situation can be reliably prevented. Therefore, the laminated state of the glass plates is stable.

Further, in the glass plate packing pallet according to the present invention, at least one set of protrusions and the fitted portion may be arranged above the center of the cushioning plate in the height direction.

With this configuration, the upper side of the shock absorber in the height direction can be fixed to the back support portion. Therefore, even if the glass plate is damaged and the cushioning plate tries to fall down from the upper side as described above, it is fitted with at least one set of protrusions arranged on the upper side in the height direction of the cushioning plate. The joint portion can increase the holding force of the cushioning plate on the upper side in the height direction and prevent the cushioning plate from falling forward.

Further, in the glass plate packing pallet according to the present invention, the fitted portion may be a through hole.

If the fitted portion is a through hole, the entire penetrating direction of the fitted portion can be used for engagement with the protrusion, so that the fixing force between the cushioning plate and the back support portion can be improved. Become. Further, if it is a through hole, it is very easy to process the fitted portion.

Further, in the glass plate packing pallet according to the present invention, the fitted portion may have a hole shape, and the maximum inner diameter dimension thereof may be set to 5 mm or more and 50 mm or less.

When the fitted portion has a hole shape in this way, by setting the maximum inner diameter dimension thereof, the strength of the member (buffer plate or back support portion) on which the fitted portion is provided can be ensured. The cushioning plate can be securely fixed to the back support portion. That is, if the maximum inner diameter dimension of the fitted portion is 50 mm or less, the strength of the member provided with the fitted portion is significantly impaired, and there is no possibility that the member is easily deformed. On the other hand, if the maximum inner diameter of the fitted portion is 5 mm or more, a sufficient frictional force with the protruding portion cannot be obtained, and there is no possibility that the fixing force between the cushioning plate and the back support portion is insufficient. Therefore, it is possible to enjoy the above-mentioned effects.

Further, in the glass plate packing pallet according to the present invention, the difference between the maximum outer diameter dimension when the protrusion is viewed from the protrusion direction and the maximum inner diameter dimension of the fitted portion is 0 mm or more and 20 mm or less. It may be set.

By setting the maximum outer diameter dimension of the protrusion and the maximum inner diameter dimension of the fitted portion in this way, the protrusion and the fitted portion are fitted without a gap or through a slight gap. The protrusion can be easily and surely fitted to the fitted portion.

Further, the pallet for packing a glass plate according to the present invention has a shape in which a plurality of protrusions each have a longitudinal direction in a plane perpendicular to the protrusion direction, and the protrusions of at least one of the plurality of protrusions. The longitudinal direction and the longitudinal direction of the other protrusions may be different from each other.

By making the direction of the maximum outer diameter dimension different depending on the protrusions in this way, the direction in which the cushioning plate is temporarily displaced in a predetermined direction, that is, the direction in which the engagement state between a part of the protrusions and the fitted portion is eliminated. Even when the force of the above is applied, the engagement state between the remaining protruding portion and the fitted portion is maintained. Therefore, it can be expected that the cushioning plate will not easily come off from the back support portion even in the event of an unexpected impact.

Further, in the glass plate packing pallet according to the present invention, three or more of the plurality of protrusions may be arranged on the same virtual straight line.

If three or more of the plurality of protrusions are arranged on the same virtual straight line in this way, the cushioning plate tilts in the direction away from the back support portion depending on the arrangement direction (direction of the virtual straight line). It is possible to exert a very high resistance to. For example, when three or more protrusions are arranged in a straight line along the width direction of the glass plate laminate, all the protrusions arranged in the straight line are against tilting around the axis along the width direction of the cushioning plate. It works effectively as a resistance (friction force with the fitted part). Therefore, it can be expected to have an effect of exerting a very high resistance to the tilting of the cushioning plate.

Alternatively, in the glass plate packing pallet according to the present invention, among the plurality of protrusions, two or more protrusions are arranged on the same virtual straight line, and one or more other protrusions. The portion may be arranged at a position deviating from the virtual straight line.

When a plurality of protrusions are arranged in this way, an effect of exerting an excellent resistance to deformation of the cushioning plate is obtained as compared with the case where three or more protrusions are arranged on the same virtual straight line. You can expect it.

Further, the glass plate packing pallet according to the present invention may be supported by the back surface support portion with a predetermined gap provided between the lower end of the cushioning plate and the bottom support portion.

With this configuration, the cushioning plate is suspended from the back support portion, so even if there is some variation in the processing accuracy between the protrusion and the fitted portion, the protrusion and the fitted portion Engages securely on its upper side (when the protrusion is provided on the back support) or on the lower side (when the protrusion is provided on the cushioning plate). Therefore, the cushioning plate can be stably fixed to the back support portion.

Further, in the glass plate packing pallet according to the above description, by fixing the cushioning plate to the back support portion without bonding, thermal deformation due to a temperature change is allowed, and the cushion plate is displaced from the back support portion. Since it can be suppressed, for example, it is possible to suitably provide the glass plate packaging body including the glass plate packaging pallet and the glass plate laminate placed on the glass plate packaging pallet. ..

As described above, according to the glass plate packing pallet according to the present invention, it is possible to prevent the glass plate from being damaged due to the cushioning plate being displaced from the back support portion, and to safely provide the glass plate laminate for a long period of time. It will be possible to transport.

It is a perspective view of the glass plate packing body which concerns on 1st Embodiment of this invention. It is a main part perspective view of the pallet for packing a glass plate shown in FIG. It is a side view of the main part of the pallet for packing a glass plate shown in FIG. It is a figure which looked at the main part of the glass plate packing pallet shown in FIG. 3 from the direction of arrow A. It is an enlarged view of the part B of the pallet for packing a glass plate shown in FIG. FIG. 5 is a cross-sectional view taken along the line CC of the protrusion and the fitted portion shown in FIG. It is a side view of the glass plate packing body shown in FIG. It is a figure which looked at the glass plate packing body shown in FIG. 7 from the direction of arrow D. It is a figure which looked at the protrusion part and the fitted part which concerns on 2nd Embodiment of this invention from the direction of arrow A shown in FIG. It is a figure which looked at the protrusion | fitting part which concerns on 3rd Embodiment of this invention from the direction of arrow A shown in FIG. It is sectional drawing of the protrusion part and the fitted part which concerns on 4th Embodiment of this invention. It is sectional drawing of the protrusion part and the fitted part which concerns on 5th Embodiment of this invention. It is a figure which looked at the protrusion part and the fitted part which concerns on 6th Embodiment of this invention from the direction of arrow A shown in FIG. It is a figure which looked at the main part of the pallet for packing a glass plate which concerns on 7th Embodiment of this invention from the direction of the arrow A shown in FIG. It is a figure which looked at the main part of the pallet for packing a glass plate which concerns on 8th Embodiment of this invention from the direction of the arrow A shown in FIG. It is a figure which looked at the main part of the pallet for packing a glass plate which concerns on 9th Embodiment of this invention from the direction of arrow A shown in FIG.

<First Embodiment of the present invention>
Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 8. In the present embodiment, a case where the glass plate to be packed is a glass substrate for a flat panel display and the glass substrate package in which the glass substrates are laminated via the interleaving paper is packed will be described as an example.

FIG. 1 is a perspective view of a glass plate packaging body 1 according to the first embodiment of the present invention. The glass plate packing body 1 includes a glass plate packing pallet 2 and a glass plate laminate 3 packed on the glass plate packing pallet 2.

The glass plate laminate 3 is formed by laminating a plurality of rectangular or square glass plates G in a vertical position via a slip sheet I. In the present embodiment, the interleaving paper I is arranged on the innermost back side of the glass plate laminate 3.

Here, to describe an example of the specifications relating to the glass plate laminate 3, the weight of the glass plate laminate 3 is 200 kg to 3800 kg. At this time, the number of glass plates G constituting the glass plate laminate 3 is 200 to 400, the size of the glass plate G is 1000 mm × 1200 mm to 2200 mm × 2500 mm, and the thickness of the glass plate G is 300 μm to 700 μm. Is. The interleaving paper I used for the glass plate laminate 3 is, for example, pure pulp paper. The size of the interleaving paper I is usually larger than that of the glass plates G, and the interleaving papers I are arranged alternately with the glass plates G so that the glass plates G do not come into direct contact with each other. As a result, the glass plate laminate 3 formed by alternately laminating the glass plate G and the interleaving paper I is formed.

The glass plate packing pallet 2 mainly includes a base portion 4, a back support portion 5, a bottom support portion 6, a holding portion 7, a cushioning plate 8, and a bottom side receiving plate 9. The back support portion 5 stands up from the base portion 4 to support the back surface of the glass plate laminate 3. The bottom support portion 6 supports the bottom (lower end) of the glass plate laminate 3 on the base portion 4. The cushioning plate 8 is arranged between the glass plate laminate 3 and the back surface support portion 5, and the bottom side receiving plate 9 is arranged between the glass plate laminate 3 and the bottom support portion 6. In the present embodiment, as shown in FIG. 2, three cushioning plates 8 are arranged on the front surface 5a side of the back support portion 5, and the bottom side receiving plate 9 is located on the top surface 6a side of the bottom support portion 6. It is arranged.

Further, in the present embodiment, as shown in FIG. 2, the total of the width direction dimensions of the cushioning plate 8 (the width direction here is the same as the width direction of the glass plate G; hereinafter the same) is the back surface. It is smaller than the width direction dimension of the front surface 5a of the support portion 5, and the cushioning plate 8 is attached to the region excluding the upper edge portion and the side edge portions of the front surface 5a. At this time, the area of the glass plate G of the glass plate laminated body 3 is smaller than the area of the front surface 8a of the cushioning plate 8. In the state where the glass plates G are laminated as shown in FIG. 1, the peripheral edge of the cushioning plate 8 is glass. It is in a state of protruding from the plate G (glass plate laminate 3). Therefore, the entire surface of the glass plate G is supported by the front surface 8a of the cushioning plate 8 (via the interleaving paper I).

Further, as shown in FIG. 3, the front surface 5a of the back surface support portion 5 is inclined rearward by a predetermined angle (for example, 5 ° to 25 °) with respect to the vertical direction. Further, the front surface 5a of the back support portion 5 has an angle of, for example, 90 ° to 100 ° with respect to the upper surface 6a of the bottom support portion 6 (that is, the support surface 9a of the receiving plate 9 on the bottom side), and the bottom support portion 5a. The upper surface 6a (support surface 9a of the backing plate 9 on the bottom side) of No. 6 is inclined with respect to, for example, 10 ° to 25 ° in the horizontal direction.

The cushioning plate 8 and the receiving plate 9 on the bottom side can be formed of a material having relatively high elasticity (low rigidity) such as foamed resin. To give a specific example, both the cushioning plate 8 and the backing plate 9 on the bottom side are formed of foamed polypropylene as the main material.

As shown in FIGS. 3 and 4, the back support portion 5 is provided with a plurality of protrusions 10 projecting toward the cushioning plate 8. Further, the cushioning plate 8 is provided with a plurality of fitted portions 11 that fit with the protrusions 10. Hereinafter, the details of the protrusion 10 and the fitted portion 11 will be described.

In the present embodiment, the number of the protrusions 10 and the number of the fitted portions 11 are the same. Specifically, as shown in FIG. 4, three protrusions 10 and a fitted portion 11 are arranged above the center of the cushion plate 8 in the height direction, and the cushion plate 8 is arranged in the height direction. Three protrusions 10 and a fitted portion 11 are arranged below the center. Both the upper protrusion 10 and the fitted portion 11 are arranged on the same virtual straight line X1, and the lower protrusion 10 and the fitted portion 11 are both on the same virtual straight line X2. Arranged. These two virtual straight lines X1 and X2 are parallel to each other. Further, the intervals in the width direction of each of the three protrusions 10 and the fitted portion 11 on the common virtual straight lines X1 and X2 are the same. Further, in the present embodiment, the back support portion 5 is composed of a metal frame 12 (a portion shown by a broken line in FIG. 4), and a plurality of protrusions 10 are formed on the frame 12. The protrusion 10 is formed on the back surface support portion 5 by joining, for example, a small piece member made of the same metal material as the frame 12 by welding or the like.

In the present embodiment, the protruding portion 10 has a columnar shape as shown in FIG. 5 when viewed from the protruding direction. Further, the fitted portion 11 has an annular hole shape in the present embodiment. Furthermore, the fitted portion 11 is a through hole as shown in FIG. As a result, the tip surface of the protrusion 10 is exposed (see FIG. 5). When the protrusion 10 is provided on the back support portion 5 and the fitted portion 11 is provided on the cushioning plate 8 as in the present embodiment, the protrusion 10 and the fitted portion 11 are separated from each other. They abut each other on the upper side in the vertical direction (upper side in FIG. 5).

Further, as shown in FIG. 5, the difference between the maximum outer diameter dimension d1 of the protrusion 10 and the maximum inner diameter dimension d2 of the fitted portion 11, actually, the protrusion portion from the maximum inner diameter dimension d2 of the fitted portion 11. The value obtained by subtracting the maximum outer diameter dimension d1 of 10 is set to 0 mm or more and 20 mm or less, preferably 2 mm or more and 15 mm or less, and more preferably 3 mm or more and 10 mm or less. In particular, if the dimensional difference d2-d1 is too small when there are a plurality of protrusions 10 and 11 to be fitted, even if the combination of the specific protrusions 10 and 11 to be fitted can be fitted, other factors may occur. There is a risk that the protrusions 10 and the fitted portion 11 do not match each other and cannot be fitted. Therefore, by providing a certain degree of dimensional difference d2-d1 as described above, all the protrusions 10 are surely fitted without increasing the positional accuracy between the plurality of protrusions 10 and the fitted portions 11. It can be fitted to the joint portion 11. The maximum outer diameter dimension of the protrusion 10 here means the maximum diameter of the circle circumscribing the protrusion 10 when the protrusion 10 is viewed in a plan view (viewed from the protrusion direction). Further, the maximum inner diameter dimension referred to here means the maximum diameter of the circle circumscribing the contour of the fitted portion 11 when the fitted portion 11 is viewed in a plan view.

Further, the maximum inner diameter dimension d2 of the fitted portion 11 is preferably set to, for example, 5 mm or more and 50 mm or less, preferably 10 mm or more and 40 mm or less, and more preferably 15 mm or more. And it is better to set it to 30 mm or less. By setting in this way, it is possible to securely fix the cushioning plate 8 to the back support portion 5 while ensuring the strength of the cushioning plate 8 itself, which is a member provided with the fitted portion 11. ..

Further, the protruding height (here, the height dimension based on the front surface 5a of the back support portion 5) h1 of the protruding portion 10 is set to be smaller than the thickness dimension h2 of the cushioning plate 8 as shown in FIG. .. As a result, the glass plate G can be reliably supported over the entire front surface 8a of the cushioning plate 8.

In the present embodiment, the holding portion 7 is configured with a belt 13, a pressing bar 14 as a pressing member, and a side stopper 15 as main elements, as shown in FIG. Of these, the belt 13 is, for example, one provided with a ratchet portion 16 (so-called ratchet belt), and is hung on a hook 17 arranged behind the back support portion 5 to be doubled, and the front surface of the pressing bar 14 is provided. It is fixed in a state of being tightened by a ratchet portion 16 or the like on (a contact surface 14a that is in surface contact with the belt 13 on the surface opposite to the glass plate laminate 3). At this time, as shown in FIGS. 1 and 7, the front side receiving plate 18 is placed on the most front side of the glass plate laminated body 3, and the front side receiving plate 18 is further on the front side. The frame plate 19 is placed on the frame plate 19. A hook 20 is provided on the frame plate 19, and with the pressing bar 14 mounted on the hook 20, the pressing bar 14 is attached to the belt 13 together with the glass plate laminate 3, the receiving plate 18 on the front side, and the frame plate 19. It is possible to press the back support portion 5 side with.

Of these, as shown in FIG. 8, the pressing bar 14 is attached to the belt 13 in a state where the longitudinal direction thereof is aligned with the width direction of the glass plate laminate 3 (disposed on the front side of the glass plate laminate 3). Ru). In the present embodiment, the two pressing bars 14 are arranged along the width direction of the glass plate laminate 3. Further, at this time, the protruding portion 10, the fitted portion 11, and the pressing bar 14 are in a positional relationship of being displaced from each other in the vertical direction. In other words, the protrusion 10 and the fitted portion 11 are not directly below the pressing direction of the pressing bar 14.

As described above, in the pallet 2 according to the present invention, one of the back surface support portion 5 and the cushioning plate 8 adjacent to each other, and in the present embodiment, the back surface support portion 5 is provided with a protrusion 10 protruding toward the cushioning plate 8. The other cushioning plate 8 is provided with a fitted portion 11 that fits with the protrusion 10. As a result, the protrusion 10 and the fitted portion 11 are engaged with each other by the weight of the cushioning plate 8 on the upper side in the vertical direction (see FIGS. 5 and 6). Therefore, a sufficient amount of frictional force can be generated between the protrusion 10 and the fitted portion 11, and the cushioning plate 8 and the back surface support portion 5 can be fixed to each other. When fixed in this way, it is not necessary to fix the cushioning plate 8 to the back support portion 5 by adhesion, so that the engagement state between the protrusion 10 and the fitted portion 11 is maintained even when the temperature changes during transportation. However, the members 5 and 8 can freely undergo thermal deformation without being constrained to each other. Therefore, a predetermined fixing force can be maintained between the back support portion 5 and the cushioning plate 8, the problematic displacement of the cushioning plate 8 can be prevented, and the glass plate G can be damaged during transportation. It is possible to prevent it.

Although the first embodiment of the glass plate packing pallet and the glass plate packing body according to the present invention has been described above, the pallet and the packing body can naturally take any form within the scope of the present invention.

<Second Embodiment of the present invention>
For example, the shapes of the protrusion 10 and the fitted portion 11 are both circular in the first embodiment, but of course, other shapes are also possible. FIG. 9 is a plan view of the protrusion 23 and the fitted portion 24 according to the second embodiment of the present invention. As shown in this figure, the protrusion 23 and the fitted portion 11 according to the present embodiment both have a polygonal shape (a pentagonal shape in FIG. 9), and are in surface contact with each other mainly on two sides on the upper side in the vertical direction. Is possible. According to this configuration, even if the dimensional control (machining accuracy, etc.) of the protrusion 23 and the fitted portion 24 is not performed with such high accuracy, they are surely brought into contact with each other in a predetermined area to generate a corresponding frictional force. Is possible.

<Third Embodiment of the present invention>
Further, in the above embodiment, the case where the protrusions 10 and 23 and the fitted portions 11 and 24 have similar shapes to each other is illustrated, but of course, they can be formed so as to be dissimilar to each other. FIG. 10 is a plan view of the protrusion 25 and the fitted portion 26 according to the third embodiment of the present invention. As shown in this figure, the protrusion 25 according to the present embodiment has a substantially rectangular shape, whereas the fitted portion 26 has a circular shape. Even with this configuration, the protrusion 25 and the fitted portion 26 are reliably fitted at a predetermined portion (for example, the two upper corners of the protrusion 25 in the vertical direction) without performing dimensional control of the protrusion 25 and the fitted portion 26 with high accuracy. It is possible to generate a corresponding frictional force by bringing it into contact with the inner peripheral surface of the portion 26.

<Fourth Embodiment of the present invention>
Further, in the above embodiment, the case where the protrusions 10, 23, 25 and the fitted portions 11, 24, 26 are all constant in the plan view direction in the stacking direction of the glass plate G is illustrated (FIG. 6). Etc.), of course, other forms are also possible. FIG. 11 shows a cross-sectional view of the protrusion 27 and the fitted portion 28 according to the fourth embodiment of the present invention. As shown in this figure, the protrusion 27 according to the present embodiment has a partial conical shape in which the diameter is reduced from the base end side to the tip end side. In this case, the fitted portion 28 may have an annular shape having a constant inner diameter dimension as shown in FIG. 11, or although not shown, the inner diameter dimension is reduced (reduced diameter) as in the protruding portion 27. It may have a partial conical shape. With this configuration, when the cushioning plate 8 is overlapped with the back support portion 5, the fitted portion 28 comes into contact with the outer peripheral surface 27a of the protrusion 27, so that the fitted portion 28 comes into contact with the fitted portion 28. The action of guiding 28 to an appropriate position can be expected. Therefore, the cushioning plate 8 can be easily mounted on the back support portion 5.

<Fifth Embodiment of the present invention>
FIG. 12 shows a cross-sectional view of the protrusion 29 and the fitted portion 30 according to the fifth embodiment of the present invention. As shown in this figure, the protrusion 29 according to the present embodiment has a so-called key-shaped (hook-shaped) shape in cross-sectional view. That is, the protruding portion 29 has a shape having a maximum outer diameter dimension on the tip side in the protruding direction when viewed from the protruding direction. Specifically, a flange portion 31 extending from the tip of the protrusion 29 in a direction substantially orthogonal to the protrusion direction of the protrusion 29 (direction along the front surface 5a) is formed. Further, the fitted portion 30 has a bottomed hole shape in which an opening is formed on the surface of the cushioning plate 8 opposite to the front surface 8a, and is oriented substantially orthogonal to the thickness direction of the cushioning plate 8 from the bottom portion. An extending horizontal hole portion 32 is formed. As a result, the cushioning plate 8 is arranged on the back support portion 5, and the cushion plate 8 is slid diagonally downward on the front surface 5a of the back support portion 5 from the state where the protrusion 29 is fitted to the fitted portion 30. By allowing the collar portion 31 and the lateral hole portion 32 to engage with each other, they are fixed to each other. By being fixed in this way, it is possible to reliably prevent the cushioning plate 8 from falling toward the front surface 8a side (the fitting portion 30 is pulled out from the protrusion 29).

<Sixth Embodiment of the present invention>
Further, the protruding portion and the fitted portion may have a certain longitudinal dimension along a predetermined direction in a plan view. FIG. 13 shows a plan view of the protrusion 33 and the fitted portion 34 according to an example thereof (sixth embodiment of the present invention). As shown in this figure, the protrusion 33 according to the present embodiment has a so-called rib shape, and the fitted portion 34 has an elongated hole shape. By doing so, the protrusion 33 and the fitted portion 34 can be brought into surface contact over a wide range in the longitudinal direction thereof, so that further improvement in the fixing force can be expected.

As described above, the protrusions and the fitted portions can take any shape and combination as long as they fit each other when the glass plates G are overlapped in the stacking direction.

<Seventh Embodiment of the present invention>
Further, when there are a plurality of protrusions 10, not all the protrusions 10 need to have the same shape or posture. FIG. 14 shows a plan view of the protrusions 35a to 35c according to an example thereof (seventh embodiment of the present invention). As shown in this figure, each of the protrusions 35a to 35c according to the present embodiment is the farthest two of the contact points between the protrusions 35a to 35c and the circumscribed circle in the plane perpendicular to the protrusion direction. It has a shape (direction of a straight line connecting two contacts), and the longitudinal directions are different from each other. Specifically, of the three protrusions 35a, 35b, and 35c arranged along the width direction of the cushioning plate 8, the longitudinal direction of the protrusion 35a on the left side in the width direction is diagonally upper left and diagonally lower right. The longitudinal direction of the protrusion 35b in the center in the width direction is the direction of passing vertically above and below, while the longitudinal direction of the protrusion 35c on the right side in the width direction is diagonally upper right and diagonally lower left. It is oriented to pass through. By providing the protrusions 35a to 35c having different longitudinal directions in this way, the direction in which the cushioning plate 8 is obliquely shifted to the upper left, that is, the engagement state between one protrusion 35a and the fitted portion 36 is eliminated. Even when a directional force is applied, the engagement state between the other protrusions 35b and 35c and the fitted portion 36 is maintained. Therefore, it can be expected that the cushioning plate 8 will not easily come off from the back support portion 5 even in the event of an unexpected impact.

<Eighth Embodiment of the present invention>
Further, in the above embodiment, the case where three or more protrusions 10 arranged along the width direction of the cushioning plate 8 are on the same virtual straight line X1 has been illustrated (see FIG. 4 and the like). Of course, it is also possible to take other arrangement modes. FIG. 15 is a diagram showing an arrangement mode of the protrusion 10 and the fitted portion 11 according to an example thereof (eighth embodiment of the present invention). As shown in this figure, among the plurality of protrusions 10 and the fitted portion 11 according to the present embodiment, first, the three protrusions 10 and the fitted portion 11 located on the upper side in the vertical direction of the cushioning plate 8 are described. While the two (left side and center in the width direction) protrusion 10 and the fitted portion 11 are arranged on the same virtual straight line X1, the other one (right side in the width direction) and the fitted portion 10 are fitted. The joint portion 11 is arranged at a position deviating from the virtual straight line X1. Further, with respect to the three protrusions 10 and the fitted portion 11 located on the lower side in the vertical direction of the cushioning plate 8, the two protrusions 10 (left side and right side in the width direction) and the fitted portion 11 are the same virtual straight line. While being arranged on X2, the other protrusion 10 (center in the width direction) and the fitted portion 11 are arranged at positions deviating from the virtual straight line X2. When the protrusions 10 and the fitted portion 11 are arranged in this way, the cushioning plate 8 is compared with the case where all the protrusions 10 are arranged on the same virtual straight line X1 and X2 (FIG. 4 and the like). It can be expected to have an effect of exerting excellent resistance to deformation of.

<Ninth Embodiment of the present invention>
Further, in the above embodiment, the case where the cushioning plate 8 is fixed to the back surface support portion 5 in a state of being in contact with the upper surface 6a of the bottom support portion 6 (see FIG. 3 and the like) is illustrated, but of course, other than this. It is also possible to take the form. FIG. 16 is a diagram for explaining the positional relationship between the cushioning plate 8 and the bottom support portion 6 according to the ninth embodiment of the present invention. As shown in the figure, the cushioning plate 8 has its lower end and bottom support. It is supported by the back surface support portion 5 with a predetermined gap g provided between the upper surface 6 a of the portion 6 and the upper surface 6 a. With this configuration, the cushioning plate 8 is always suspended from the back support portion 5, so that even if there is some variation in the shape accuracy or the position accuracy of the protrusion 10 and the fitted portion 11. The protrusion 10 and the fitted portion 11 are securely engaged on the upper side thereof. Therefore, the cushioning plate 8 can be stably supported by the back surface support portion 5.

The possible configurations of the protrusion and the fitted portion, and the cushioning plate and the back support portion have been described above, but of course, other elements can be arbitrarily configured. That is, in a glass plate packing pallet provided with a bottom support portion, a back support portion, and a cushioning plate, one of the back support portion and the cushioning plate is provided with a protrusion protruding toward the other, and the other As long as the fitted portion that fits with the protrusion is provided, other configurations are arbitrary, and it goes without saying that the above description is not limited to the matters related to the above description and the illustrated matters. For example, in the above description, the case where the protrusion 10 is provided on the back support portion 5 and the fitted portion 11 is provided on the cushioning plate 8 is illustrated, but the fitted portion 11 is provided on the back support portion 5 and the cushioning plate is provided. The protrusion 10 may be provided on the 8. Alternatively, at least one protrusion 10 and two or more fitted portions 11 are provided on the back support portion 5, and two or more protrusions 10 and at least one fitted portion 11 are provided on the cushioning plate 8. You may.

Further, in the above description, the case of laminating between the glass plates G via the interleaving paper I has been illustrated (FIG. 1 etc.), but of course, there is also a case where the interleaving paper I is omitted and only the glass plate G is laminated. It is possible to apply the glass plate packing pallet according to the present invention.

1 Glass plate packing body 2 Glass plate packing pallet 3 Glass plate laminated body 4 Base part 5 Back support part 6 Bottom support part 7 Holding part 8 Cushion plate 10, 23, 25, 27, 29, 33 Protrusions 11, 24 , 26, 28, 30, 34 Fitted part 13 Belt 14 Pressing bar 15 Side stopper 19 Frame plate G Glass plate I Insert paper d1 Maximum outer diameter dimension of protrusion d2 Maximum inner diameter dimension of fitting part h1 Protruding height h2 Thickness dimension of cushioning plate

Claims (11)

A bottom support portion that supports the bottom of a glass plate laminate formed by laminating a plurality of glass plates in a vertical position,
A cushioning plate that comes into contact with the back surface of the glass plate laminate,
In a glass plate packing pallet provided with a back support portion that supports the back surface of the glass plate laminate via the buffer plate.
The back support portion is provided with a protrusion protruding toward the cushioning plate, and is provided with a protrusion.
The cushioning plate is provided with a fitted portion that fits with the protruding portion.
A pallet for packing a glass plate, characterized in that the cushioning plate and the back surface support portion are mutually fixed by fitting the protrusion portion with the fitted portion. Glass plate packaging pallet according to claim 1 protrusion height of the front Symbol protrusion is less than the thickness of the buffer plate. The glass plate packing pallet according to claim 1 or 2, wherein at least one set of the protrusions and the fitted portion are arranged above the center in the height direction of the cushioning plate. The pallet for packing a glass plate according to any one of claims 1 to 3, wherein the fitted portion is a through hole. The pallet for packing a glass plate according to any one of claims 1 to 4, wherein the fitted portion has a hole shape, and the maximum inner diameter dimension thereof is set to 5 mm or more and 50 mm or less. The fourth or fifth aspect of the present invention, wherein the difference between the maximum outer diameter dimension when the protrusion is viewed from the protrusion direction and the maximum inner diameter dimension of the fitted portion is set to 0 mm or more and 20 mm or less. Glass plate packing pallet. Each of the plurality of protrusions has a shape having a longitudinal direction in a plane perpendicular to the protrusion direction.
The pallet for packing a glass plate according to any one of claims 1 to 6, wherein the longitudinal direction of at least one of the protrusions and the longitudinal direction of the other protrusions are different from each other. The pallet for packing a glass plate according to any one of claims 1 to 7, wherein three or more of the plurality of protrusions are arranged on the same virtual straight line. Two or more of the plurality of protrusions are arranged on the same virtual straight line, and one or more of the other protrusions deviate from the virtual straight line. The pallet for packing a glass plate according to any one of claims 1 to 7, which is arranged at a position. The invention according to any one of claims 1 to 9, wherein the cushioning plate is supported by the back surface supporting portion with a predetermined gap provided between the lower end of the cushioning plate and the bottom supporting portion. Pallet for packing glass plates. A glass plate packing body including the glass plate packing pallet according to any one of claims 1 to 10 and the glass plate laminated body placed on the glass plate packing pallet.

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