Vibration-damping pallet

Abstract

With its simple configuration, it can absorb both vertical and horizontal vibrations, offering excellent vibration absorption efficiency, and can handle a wide range of weights, from light to heavy objects. [Solution] The vibration absorption mechanism 4 is provided, consisting of an upper cushioning material receiving plate 4a having an upper inclined surface attached to the lower surface of the top plate 3, a lower cushioning material receiving plate 4b having a lower inclined surface attached to the upper surface of the pallet body 2, and a cushioning material 4c attached so as to be sandwiched between the upper inclined surface of the upper cushioning material receiving plate 4a and the lower inclined surface of the lower cushioning material receiving plate 4b. The upper inclined surface of the upper cushioning material receiving plate 4a and the lower inclined surface of the lower cushioning material receiving plate 4b are arranged to be parallel, and the cushioning material 4c is attached between them.

Description

Technical Field

[0001] The present invention relates to a pallet for placing a reusable box used when transporting goods such as products and articles, and particularly to a vibration-proof pallet that absorbs vibrations generated when transporting goods such as precision equipment and artworks.

Background Art

[0002] The reusable box, also known as a "folding container", is used when transporting goods such as products, semi-finished products, commodities, and artworks between companies or factories, or from logistics centers to stores such as supermarkets and drugstores. This reusable box can be folded when not in use and becomes about the thickness of a slightly thick board. It can be stored relatively space-saving and can be reused for a long time.

[0003] Some of the goods placed in this reusable box and transported are liable to be affected by vibrations, such as fragile products, commodities, and artworks. Also, the functions of precision equipment may deteriorate when vibrations during transportation are transmitted. Therefore, when transporting fragile items, precision equipment, artworks, and other goods, they are placed on a vibration-proof pallet so that vibrations during transportation do not propagate to the goods inside the reusable box.

[0004] Technologies related to vibration-proof pallets for placing reusable boxes have been proposed. For example, in Patent Document 1, "Vibration-Proof Pallet", there is proposed a vibration-proof pallet including a top plate portion on which an article to be transported is placed, and a base portion that supports the top plate portion via a plurality of pieces provided with a buffer material, wherein each piece is a vibration-proof pallet in which a fixing member detachably fixed to the base portion and a fixing member detachably fixed to the top plate portion are connected via a buffer material.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

[0006] The vibration-damping pallet described in Patent Document 1 is heavy and time-consuming to manufacture due to the large number of components.

[0007] Furthermore, when transporting cargo by aircraft, it experiences significant vertical shocks (vibrations) during landing. When transporting cargo by automobile, in addition to vertical vibrations, there are many longitudinal vibrations (lateral vibrations). Conventional vibration-damping pallets have the problem that while they can absorb vibrations in a specific direction depending on the cushioning material, they have difficulty absorbing vibrations in other directions.

[0008] This invention was devised to solve the aforementioned problems. Specifically, the objective of this invention is to provide a vibration-damping pallet that has a simple structure, can absorb both vertical and horizontal vibrations, has good vibration absorption efficiency, and can handle a wide range of cargo weights, from light to heavy. [Means for solving the problem]

[0009] The first aspect of the present invention is a vibration-damping pallet comprising a top plate (3) on which a returnable container (11) for transporting goods is placed, and a pallet body (2) positioned below the top plate, wherein a vibration-absorbing cushioning material (54) is provided between the lower surface of the top plate and the upper surface of the pallet body.

[0010] The second aspect of the present invention is a vibration-damping pallet comprising a vibration absorption mechanism (4) consisting of an upper cushioning support plate (4a) having an upper inclined surface attached to the lower surface of the top plate, a lower cushioning support plate (4b) having a lower inclined surface attached to the upper surface of the pallet body, and a cushioning material (4c) attached so as to be sandwiched between the upper inclined surface of the upper cushioning support and the lower inclined surface of the lower cushioning support plate, wherein the plane of the upper inclined surface of the upper cushioning support plate and the plane of the lower inclined surface of the lower cushioning support plate are arranged to be parallel, and the cushioning material is attached between them. For example, it is preferable to arrange multiple vibration absorption mechanisms installed between the top plate and the pallet body so that the axes of each cushioning material are in the same direction.

[0011] The third aspect of the present invention is a vibration-damping pallet in which a plurality of vibration absorption mechanisms (4) are installed between the top plate (3) and the pallet body (2), and the axes of each cushioning material (4c) are arranged in the same direction.

[0012] The fourth aspect of the present invention is a vibration-damping pallet further comprising a vibration absorption mechanism (24) consisting of an upper elastic member receiving plate (24b) attached to the underside of the top plate and an elastic member (24c) attached to the top surface of the pallet itself. The load of a returnable container filled with goods placed on the top plate is supported by a cushioning material, but when the load on the cushioning material becomes too great to support the returnable container, the upper part of the elastic member (24c) comes into contact with the elastic member receiving plate and is configured to support the top plate.

[0013] The fifth aspect of the present invention is a vibration-damping pallet comprising a vibration absorption mechanism (34) consisting of a first cushioning material (34a) attached between the lower surface of the top plate and the upper surface of the pallet body as a cushioning material, a second upper cushioning material receiving plate (34b) attached to the lower surface of the top plate, and a second cushioning material (34c) attached to the upper surface of the pallet body. The first cushioning material supports the load of a returnable container filled with goods placed on the top plate, but when the load applied to the first cushioning material is such that it cannot support the returnable container, the second cushioning material (34c) comes into contact with the second upper cushioning material receiving plate to support the top plate.

[0014] The sixth aspect of the present invention is a vibration-damping pallet comprising a vibration absorption mechanism (44) consisting of a first elastic member (44a) attached as a cushioning material so as to be sandwiched between the lower surface of the top plate and the upper surface of the pallet body, a second elastic member receiving plate (44b) attached to the lower surface of the top plate, and a second elastic member (44c) attached to the upper surface of the pallet body. The first elastic member supports the returnable containers containing cargo placed on the top plate, but when a load is applied to the first elastic member that is too great to support the returnable containers, the second elastic member comes into contact with the second elastic member receiving plate to support the top plate. [Effects of the Invention]

[0015] The first aspect of the present invention allows for the construction of a lightweight vibration-damping pallet with a simple structure using fewer materials.

[0016] The second aspect of the present invention is a configuration in which the vibration absorption mechanism (4) is arranged such that the plane of the upper inclined surface of the upper cushioning material receiving plate (4a) and the plane of the lower inclined surface of the lower cushioning material receiving plate (4b) are parallel, and a cushioning material (4c) is attached between them. Since the cushioning material (4c) is attached at an angle between the top plate (3) and the pallet body (2), the cushioning material (4c) can absorb vibrations in the vertical and horizontal directions that propagate from the pallet body (2).

[0017] The third aspect of the present invention is a vibration absorption mechanism (24) that combines a cushioning material (24a) and an elastic member (24c). The appropriate vibration absorption capacity varies depending on the weight of the cargo, and the same vibration absorbing material cannot handle both heavy and light cargo. When the cargo is light, the load of the returnable container (11) placed on the top plate (3) is supported only by the cushioning material (24a). However, when the load on the cushioning material (24a) becomes too great to support the returnable container (11), the upper part of the elastic member (24c) comes into contact with the elastic member receiving plate (24b), allowing the top plate (3) to be supported. Vibrations can be absorbed with the same vibration-damping pallet (21) for cargo ranging from light to heavier weights.

[0018] The fourth aspect of the present invention is a vibration absorption mechanism (34) that is composed of two cushioning materials (34a, 34c). When the cargo is light, the first cushioning material (34a) supports the load of the returnable container (11) placed on the top plate (3). However, when the load on the first cushioning material (34a) is such that it cannot support the returnable container (11), the second cushioning material (34c) can support the top plate (3). The same vibration-damping pallet can absorb vibrations for relatively light cargo of different weights.

[0019] The fifth aspect of the present invention has a vibration absorption mechanism (44) configured by combining two elastic members (44a, 44c). When the cargo is light, the first elastic member (44a) supports the load of the passing box (11) placed on the top plate (3). However, when a load that cannot support the passing box (11) is applied to the first elastic member (44a), the second elastic member (44c) can support the top plate (3). Regarding relatively heavy cargoes with different weights, vibration can be absorbed by the same anti-vibration pallet.

Brief Description of the Drawings

[0020] [Figure 1] Front view showing the anti-vibration pallet of Example 1. [Figure 2] Perspective view showing the anti-vibration pallet of the passing box of Example 2. [Figure 3] Front view showing the anti-vibration pallet of the passing box of Example 2. [Figure 4] Plan view showing the anti-vibration pallet of the passing box of Example 2. [Figure 5] Perspective view showing the disassembled state of the passing box. [Figure 6] Perspective view showing the assembled state of the passing box. [Figure 7] Enlarged side view showing the vibration absorption mechanism part of the anti-vibration pallet of Example 2. [Figure 8] It is an enlarged side view showing the operation of the vertical vibration of the vibration absorption mechanism part of the anti-vibration pallet of Example 2, (a) is the state without vibration, and (b) is the state during vibration absorption. [Figure 9] It is an enlarged side view showing the operation of the lateral vibration of the vibration absorption mechanism part of the anti-vibration pallet of Example 2, (c) is the state without vibration, and (d) is the state during vibration absorption. [Figure 10] It is an enlarged side view showing the configuration of the vibration absorption mechanism part of the anti-vibration pallet of Example 3, which consists of urethane and a spring. (a) is the state with light cargo placed, and (b) is the state with heavy cargo placed. [Figure 11]This is an enlarged side view showing the vibration absorption mechanism of the vibration-damping pallet of Example 4, which consists of two types of cushioning materials with different vibration absorption capabilities, with (a) showing the pallet loaded with light cargo and (b) showing the pallet loaded with heavy cargo. [Figure 12] This is an enlarged side view showing the vibration absorption mechanism of the vibration-damping pallet of Example 5, which consists of two types of springs with different vibration absorption capacities, with (a) showing the pallet loaded with light cargo and (b) showing the pallet loaded with heavy cargo. [Figure 13] A perspective view showing the vibration-damping pallet of Example 6. [Figure 14] A cross-sectional view showing the vibration-damping pallet of Example 7. [Modes for carrying out the invention]

[0021] The vibration-damping pallet of the present invention consists of a top plate on which a returnable container for goods such as products or articles to be transported is placed, and a pallet body positioned below the top plate. A vibration absorption mechanism is installed between the top plate and the pallet body to absorb vibrations transmitted from the pallet body. Preferred embodiments of the present invention will be described below with reference to the drawings. [Examples]

[0022] As shown in Figure 1, this vibration-damping pallet 51 consists of a pallet body 52, which is the lower member that comes into contact with the floor of a warehouse, the floor of a truck bed, or the floor of an airplane cargo compartment, and a top plate 53, which is the upper member on which goods such as products and articles are placed. Multiple cushioning materials 54, such as urethane resin or springs, are attached between the pallet body 52 and the top plate 53. The pallet body 52 is provided with slots 55 for inserting forklift forks. Multiple hooks 56 for lashing belts to secure cargo are attached to the top plate 53. [Examples]

[0023] [Configuration of a vibration-damping pallet with cushioning material installed at an angle] Even when using pallets of the same size, the weight of the cargo can vary significantly. In a vibration-damping pallet 51 consisting of cushioning material 54, heavy cargo can cause the cushioning material 54 to collapse, preventing it from expanding or contracting, and thus making it impossible to efficiently dampen vibrations transmitted from the pallet body 52. ​​Conversely, if the cargo is too light relative to the vibration absorption capacity of the cushioning material 54, it will not be able to properly absorb vibrations.

[0024] Figure 2 is a perspective view showing the vibration-damping pallet for the returnable container of Example 2. Figure 3 is a front view showing the vibration-damping pallet for the returnable container of Example 2. Figure 4 is a top view showing the vibration-damping pallet for the returnable container of Example 2. The vibration-damping pallet 1 of the returnable container in Example 2 consists of a pallet body 2 and a top plate 3, with several vibration absorption mechanisms 4 installed between the pallet body 2 and the top plate 3. The pallet body 2 and top plate 3 in this example are made of plastic, but they may also be made of wood or metal.

[0025] As shown in the figure, the vibration-damping pallet 1 of Example 2 consists of a pallet body 2, which is the lower member that comes into contact with the floor of a warehouse, the floor of a truck bed, or the floor inside a cargo airplane, and a top plate 3, which is the upper member on which the returnable container 10 (described later) is placed, with multiple vibration absorption mechanisms 4 made of cushioning material 4c such as urethane resin or springs attached between them. In the vibration-damping pallet 1 shown in Figure 4, vibration absorption mechanisms 4 are attached in nine locations. These nine locations are just an example, and the number of vibration absorption mechanisms 4 to be attached is determined according to the size of the pallet body 2 and the weight of the cargo to be carried. The pallet body 2 has insertion slots 5 for inserting the forks of a forklift used for moving the pallet. The top plate 3 has multiple hooks 6 for lashing belts to secure the returnable containers. The hooks 6 may be provided on the top surface of the top plate 3, or on the sides or bottom. Alternatively, instead of hooks, the pallet may be provided with a belt that has fittings for connecting the lashing belts.

[0026] [Composition of the returnable container] Figure 5 is a perspective view showing the disassembled state of the returnable container placed on the vibration-damping pallet of the present invention. Figure 6 is a perspective view showing the assembled state of the returnable container placed on the vibration-damping pallet of the present invention. The present invention involves placing and securing a reusable container 10 on a vibration-damping pallet 1 to transport goods. The reusable container 10 is formed by attaching the sides of one bottom plate 11, four side plates 12, and one lid 16 together. Using hook-and-loop fasteners for attachment allows for easy attachment and detachment, making assembly and disassembly convenient. Goods are secured to the bottom plate 11 with belts or the like. Furthermore, by using insulating material for the bottom plate 11, side plates 12, and lid 16, the reusable container 10 can be used as a temperature-controlled container for temperature-controlled transport.

[0027] Each side panel 12 has a hook-type hook fastener 13 attached to one side and a loop-type hook fastener 14 attached to the other vertical side. The returnable box 10 is formed by placing a bottom panel 11 on top of the vibration-damping pallet 1 and attaching the hook fasteners 13 of each of the four side panels 12 to the loop-type hook fasteners 14 of the bottom panel and adjacent side panels 12. Note that the arrangement of the hook-type hook fasteners 13 and loop-type hook fasteners 14 may be reversed.

[0028] A square-shaped lid 16 is placed over the top of the four combined side panels 12. By forming a hexahedron with six insulating materials and sealing it, the temperature inside the returnable container 10 is kept constant. When removing cargo, the lid 16 is removed, and the hook-and-loop fasteners 13 and 14 on each of the four side panels 12 are detached to disassemble the container.

[0029] The inner walls of the side panels 12 and lid 16 are fitted with heat storage nets (pockets) 15 for inserting heat storage material (insulating agent). For example, when transporting precision equipment by aircraft, the temperature inside the cargo compartment of the aircraft drops during flight and returns to room temperature on the ground, and there is a risk of condensation forming inside the precision equipment due to the large temperature change. To prevent such condensation, a heat storage material with a large heat capacity is placed inside the returnable container 10 to maintain a constant temperature inside the container during transport.

[0030] [Configuration of the vibration absorption mechanism] Figure 7 is an enlarged side view showing the vibration absorption mechanism portion of the vibration-damping pallet of Example 2. Figure 8 is an enlarged side view showing the vertical vibration operation of the vibration absorption mechanism portion of the vibration-damping pallet of Example 2, where (a) is the state without vibration and (b) is the state during vibration absorption. Figure 9 is an enlarged side view showing the lateral vibration operation of the vibration absorption mechanism portion of the vibration-damping pallet of Example 2, where (c) is the state without vibration and (d) is the state during vibration absorption. The vibration absorption mechanism 4 of Example 2 has an upper cushioning material receiving plate 4a having an upper inclined surface attached to the lower surface of the top plate 3, and a lower cushioning material receiving plate 4b having a lower inclined surface attached to the upper surface of the pallet body 2. Here, an inclined surface means a surface that is inclined with respect to the flat surface of either the top plate 3 or the pallet body 2. A cushioning material 4c is attached so as to be sandwiched between the upper inclined surface of the upper cushioning material receiving plate 4a and the lower inclined surface of the lower cushioning material receiving plate 4b. as These materials include urethane resin, rubber, and various springs. The upper cushioning plate 4a and the lower cushioning plate 4b are designed to mount the cushioning material 4c at an angle.

[0031] The inclination angles of the upper cushioning plate 4a and the lower cushioning plate 4b must be appropriate with respect to the flat surfaces of the top plate 3 and the pallet body 2, respectively. If the inclination angle is too small, the vibration absorption mechanism 4 of the vibration-damping pallet in Example 2 may not be able to perform its function of absorbing both "vertical vibrations" and "lateral vibrations," which is a technical feature of the vibration-damping pallet in Example 2. Conversely, if the inclination angle is too large, the vibration absorption mechanism 4 will constantly receive the load from the top plate 3 in the lateral direction, making it difficult to support the cargo. In this example, the angle is set to 10° with respect to the horizontal plane.

[0032] In the vibration absorption mechanism 4 of Example 2, as shown in Figure 8(a), the plane of the upper inclined surface and the plane of the lower inclined surface are arranged to be parallel, and the cushioning material 4c is attached at an angle between them. As a result, as shown in Figure 8(b), vertical vibrations transmitted from the pallet body 2 are absorbed and prevented from being transmitted to the top plate 3.

[0033] Furthermore, as shown in Figures 9(c) and (d), the cushioning material 4c can also absorb lateral vibrations propagating from the pallet body 2. Since the cushioning material 4c is installed at an angle between the lower inclined surface of the lower cushioning material receiving plate 4b of the pallet body 2 and the upper inclined surface of the upper cushioning material receiving plate 4a of the top plate 3, it can absorb lateral vibrations in addition to vertical vibrations. [Examples]

[0034] [Configuration of the vibration absorption mechanism consisting of urethane and springs] Figure 10 is an enlarged side view showing the vibration absorption mechanism of the vibration-damping pallet of Example 3, which consists of urethane and springs, with (a) showing the state with light cargo and (b) showing the state with heavy cargo. The vibration absorption mechanism 24 attached to the vibration-damping pallet 21 in Example 3 consists of a vibration absorber made of different materials, such as urethane and springs. Different materials are used because they have different vibration absorption capacities (rates). The appropriate vibration absorption capacity varies depending on the weight of the cargo, and the same vibration absorber cannot handle both heavy and light cargo. In Example 3, the vibration absorption mechanism 24 is installed so as to sandwich a cushioning material 24a between the lower surface of the top plate 3 and the upper surface of the pallet body 2. An elastic member receiving plate 24b is attached to the lower surface of the top plate 3, and below that, an elastic member 24c is attached to the upper surface of the pallet body 2 alongside the cushioning material 24a. Here, the cushioning material 24a is made of a material such as urethane resin, rubber, or elastomer. In this example, a metal coil spring is used as the elastic member 24c. At this time, the vibration absorption capacity of the elastic member (24c) is made stronger than that of the cushioning material 24a.

[0035] In Example 3, the vibration absorption mechanism 24 supports the load of the returnable container 10 containing cargo placed on the top plate 3 with the cushioning material 24a. However, when the load on the cushioning material 24a becomes too great to support the returnable container 10, the upper part of the elastic member 24c comes into contact with the elastic member receiving plate 24b, allowing it to support the top plate 3. This allows a single vibration-damping pallet 21 to handle both light and heavy cargo. In Example 3, the vibration-damping pallet 21 can absorb vibrations transmitted from the pallet body 2 regardless of whether the cargo is light or heavy. [Examples]

[0036] [Configuration of a vibration absorption mechanism consisting of two types of cushioning materials with different vibration absorption capabilities] Figure 11 is an enlarged side view showing the configuration of the vibration absorption mechanism of the vibration-damping pallet of Example 4, consisting of two types of cushioning materials with different vibration absorption capacities, where (a) is with light cargo loaded and (b) is with heavy cargo loaded. The vibration absorption mechanism 34 attached to the vibration-damping pallet 31 in Example 4 consists of two types of cushioning materials with different vibration absorption capabilities. Examples of materials with different vibration absorption capabilities include urethane resin, rubber, and elastomer. Furthermore, the cushioning materials support the top plate 3 in two stages.

[0037] In this embodiment 4, the vibration absorption mechanism 34 of the vibration absorption mechanism 31 is installed so as to sandwich the first cushioning material 34a between the lower surface of the top plate 3 and the upper surface of the pallet body 2. A second cushioning material receiving plate 34b is attached to the lower surface of the top plate 3, and below that, a second cushioning material 34c is attached to the upper surface of the pallet body 2 alongside the first cushioning material 34a. The first cushioning material 34a has a stronger vibration absorption capacity than the second cushioning material 34c. Here, "first" and "second" are used to distinguish similar components and do not indicate order or grade. Embodiment 5 is similar. Since the top plate 3 is supported in two stages, the vibration absorption capacity of the first cushioning material 34a and the second cushioning material 34c may be made to be of similar magnitude.

[0038] In the vibration absorption mechanism 34 of Example 4, the first cushioning material 34a supports the load of the returnable container 10 containing cargo placed on the top plate 3. However, when the load on the first cushioning material 34a is too great to support the returnable container 10, the second cushioning material 34c supports the top plate 3. In the vibration-damping pallet 31 of Example 4, the vibration absorption mechanism 34 can absorb vibrations transmitted from the pallet body 2, regardless of whether the cargo is light or heavy. [Examples]

[0039] [Configuration of a vibration absorption mechanism consisting of two types of springs with different vibration absorption capabilities] Figure 12 is an enlarged side view showing the configuration of the vibration absorption mechanism of the vibration-damping pallet of Example 5, consisting of two types of springs with different vibration absorption capacities, where (a) is with light cargo loaded and (b) is with heavy cargo loaded. In this embodiment 5, the vibration absorption mechanism 44 of the vibration-damping pallet 41 is installed so as to sandwich the first elastic member 44a between the lower surface of the top plate 3 and the upper surface of the pallet body 2. A second elastic member receiving plate 44b is attached to the lower surface of the top plate 3, and below that, a second elastic member 44c is attached to the upper surface of the pallet body 2 alongside the first elastic member 44a. Here, metal coil springs or the like are used for the first elastic member 44a and the second elastic member 44c. The first elastic member 44a has a different vibration absorption capacity from the second elastic member (44c). In the case of the vibration-damping pallet 41 of Example 5, since it is configured to support the top plate 3 in two stages, the vibration absorption capacity of the first elastic member 44a and the second elastic member 44c may be made to be of similar magnitude.

[0040] In the vibration-damping pallet 41 of Example 5, the vibration absorption mechanism 44 supports the load of the returnable container 10 containing the cargo placed on the top plate 3 with the first elastic member 44a. However, when the load on the first elastic member 44a is too great to support the returnable container 10, the second elastic member 44c can support the top plate 3. In this way, the vibration absorption mechanism (44) can absorb vibrations transmitted from the pallet body 2 whether the pallet is loaded with light or heavy cargo. The vibration-damping pallet 41 of Example 5 can also absorb vibrations transmitted from the pallet body 2 with the vibration absorption mechanism 44, whether the cargo is light or heavy. [Examples]

[0041] [Configuration with vibration absorption mechanisms arranged in multiple directions] Figure 13 is a perspective view showing the vibration-damping pallet of Example 6. Note that the top plate 3 is shown as transparent for illustrative purposes. The vibration-damping pallet 51 of Example 6 is constructed by attaching the vibration absorption mechanisms 4 (eight in the example) located on the outer periphery of the vibration absorption mechanism 4 of Example 2 to four directions (two in each direction in the example). Because the vibration absorption mechanism 4 is inclined, its shock absorption capacity differs depending on its orientation. By distributing the vibration absorption mechanism 4 to four directions, it is possible to address vibrations in each direction. Alternatively, if the direction of the vibration to be absorbed is determined, the mechanism can be divided and attached to two directions. [Examples]

[0042] [Configuration with vibration absorption mechanisms mounted in different orientations] Figure 14 is a cross-sectional view showing the vibration-damping pallet of Example 7. The vibration-damping pallet 61 of Example 7 has a horizontal cushioning material 64h that contacts the top plate 3 on its upper surface, and a vertical cushioning material 64v that contacts the top plate 3 on its sides, just like in the conventional design. In Example 7, a bottom plate 62 is provided on top of the pallet body 2 so that the vertical cushioning material 64v contacts the top plate 3 on its sides. The bottom plate 62 is box-shaped (concave cross-section) with walls that rise on all four sides. The top plate 63 is thin on the outer periphery and thicker in the center (convex cross-section). The vertical cushioning material 64v is installed so that each side contacts the walls of the bottom plate 62 and the center of the top plate 63. By arranging the cushioning material 4 in different orientations, the vibration absorption effect can be further improved.

[0043] Furthermore, the present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit of the invention, as long as it has a simple configuration that can absorb both vertical and horizontal vibrations, has good vibration absorption efficiency, and can handle products and articles of various weights, from light to heavy. [Industrial applicability]

[0044] The vibration-damping pallet of the present invention is used when transporting goods with returnable containers placed on top, but it can also be used in other situations where vibrations during transport are not transmitted to the goods. [Explanation of symbols]

[0045] 1. Vibration-damping pallet (Example 2) 2 Pallet body 3 Top plate 4. Vibration absorption mechanism 4a Upper cushioning material receiving plate 4b Lower cushioning material receiving plate 4c buffer material 10 Reusable containers 11 Bottom plate 12 Side panels 13. Hook and hook fastener 14. Loop fastener 15. Heat storage net (pocket) 16 Lid 21. Vibration-damping pallet (Example 3) 24. Vibration absorption mechanism 24a Cushioning material 24b Upper elastic member receiving plate 24c elastic member 31. Vibration-damping pallet (Example 4) 34. Vibration absorption mechanism 34a 1st buffer material 34b 2nd upper cushioning material receiving plate 34c 2nd buffer material 41 Vibration-damping pallet (Example 5) 44. Vibration absorption mechanism 44a First elastic member 44b Second elastic member receiving plate 44c Second elastic member 51. Prevention Pallet (Example 1) 52 Pallet body 53 Top plate 54 Cushioning material 51. Prevention pallet (Example 6) 61. Prevention pallet (Example 7) 62 Bottom plate 64h horizontal buffer 64V vertical cushioning material

Claims

1. A vibration-damping pallet for a returnable container, comprising a top plate (3) on which a returnable container (11) for transporting goods is placed, and a pallet body (2) positioned below the top plate, A vibration-absorbing cushioning material (54) is provided between the lower surface of the top plate and the upper surface of the pallet body. Vibration-damping pallet.

2. As the aforementioned cushioning material, An upper cushioning material receiving plate (4a) having an upward inclined surface is attached to the lower surface of the top plate, A lower cushioning material receiving plate (4b) having a downward sloping surface is attached to the upper surface of the pallet body, The vibration absorption mechanism (4) comprises a cushioning material (4c) that is attached so as to be sandwiched between the upper inclined surface of the upper cushioning material receiving plate and the lower inclined surface of the lower cushioning material receiving plate, The upper inclined surface of the upper cushioning material receiving plate and the lower inclined surface of the lower cushioning material receiving plate are arranged so that they are parallel, and the cushioning material is attached between them. The vibration-damping pallet according to claim 1.

3. Multiple vibration-absorbing mechanisms (4) are installed between the top plate (3) and the pallet body (2), and are arranged so that the axes of each cushioning material (4c) are in the same direction. The vibration-damping pallet according to claim 2.

4. The upper elastic member receiving plate (24b) attached to the lower surface of the top plate, The vibration absorption mechanism (24) further comprises an elastic member (24c) attached to the upper surface of the pallet body, The cushioning material supports the load of the returnable container holding the cargo placed on the top plate, but when the load on the cushioning material becomes too great to support the returnable container, the upper part of the elastic member is configured to come into contact with the elastic member receiving plate and support the top plate. The vibration-damping pallet according to claim 1.

5. A second upper cushioning material receiving plate (34b) is attached to the lower surface of the top plate, The vibration absorption mechanism (34) further comprises a second cushioning material (34c) attached to the upper surface of the pallet body, The cushioning material supports the load of the returnable container containing the cargo placed on the top plate, but when the load applied to the first cushioning material (34a) is such that it cannot support the returnable container, the second cushioning material is configured to come into contact with the second upper cushioning material receiving plate and support the top plate. The vibration-damping pallet according to claim 1.

6. As the aforementioned cushioning material, A first elastic member (44a) is attached so as to be sandwiched between the lower surface of the top plate and the upper surface of the pallet body, A second elastic member receiving plate (44b) is attached to the lower surface of the top plate, The vibration absorption mechanism (44) comprises a second elastic member (44c) attached to the upper surface of the pallet body, The first elastic member supports the returnable container holding the cargo placed on the top plate, but when the load applied to the first elastic member is too great to support the returnable container, the second elastic member is configured to come into contact with the second elastic member support plate and support the top plate. The vibration-damping pallet according to claim 1.

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