JP2024078692A - Packing structure of hot-water storage device - Google Patents

Abstract

To provide a packaging structure capable of forming a handle only from a packing member below a front part and a rear part of the packaging structure of a hot-water storage device.SOLUTION: According to a packing structure 10B comprising a front face packing material 12B for covering a front face of a hot-water storage device 1 provided with a front/rear width and a right/left width smaller than the front/rear width, and a rear face packing material 13B for covering a rear face; the hot-water storage device comprises outer-packaging cases 2, 3 and a plurality of leg parts 4 for supporting the outer-packaging cases 2, 3. There is provided a lower portion packing material 16B that passes through a space between a leg part 4 and another leg part 4 and covers a front face lower portion, a bottom face and a rear face lower portion of the hot-water storage device 1. There is provided a handle made from each of square cylinders 16e, 16f obtained by winding corrugated fiberboard around a front face material 16a for covering the front face lower portion of the lower portion packing material 16B and a rear face material 16b for covering the rear face lower portion.SELECTED DRAWING: Figure 6

Description

The present invention relates to a packaging structure for a hot water storage device.

Hot water storage devices that are a unit consisting of a heat source device for heating water and a hot water storage tank for storing hot water are widely used. The hot water storage devices are usually transported by truck in a form packaged in a packaging structure made of corrugated cardboard or the like, and then unpacked near the installation site, after which they are manually transported to the installation site under the eaves or the like and installed. When transporting by hand, the stepped portion or handles formed on the hot water storage device are used for transportation.
However, when the hot water storage device is unpackaged and then transported through a narrow passageway such as under a eaves, there are many cases where the outer casing of the hot water storage device is scratched, soiled, or dented. Therefore, there is a need to transport the hot water storage device to the installation site without unpackaging it.

In the packaging device described in Patent Document 1, a bottom support material made of a separate piece is provided at the bottom of the packaging structure for the electric water heater, a horizontally wound belt-shaped member is provided at the middle section, and a handle hole is formed in this belt-shaped member, and the bottom support material protects the bottom of the electric water heater, which is easily damaged when the electric water heater is transported in its packaged state near the installation location.

The packaging structure of the storage-type hot water supply device in Patent Document 2 has three panels covering the front and left and right sides, a back panel, a top cover, and a lower wooden frame. Handle holes are formed in the upper and lower parts of the rear end portions of the left and right sides. When transporting the storage-type hot water supply device in its packaged state at the site, it is transported with the back side facing down and by placing the hands in the handle holes.

The packaging structure of the hot water storage device in Patent Document 3 has a front packaging material, a rear packaging material, a top member, a top plate member, and a pallet member on the lower end side. This packaging structure is fixed to the pallet member by a vertically wound band member at the front and a vertically wound band member at the rear, so that at the site, the hot water storage device is unpacked after being unloaded from the truck and then transported after the packaging structure has been removed.

Patent No. 5014302 JP 2014-104989 A Patent No. 5858213

The packaging device in Patent Document 1 only has a pair of left and right handle holes formed in the rear end portion of the middle section, so the electric water heater can be transported in a horizontal position, but it is difficult to transport the electric water heater in a vertical position in a narrow passage where it cannot be transported in a horizontal position, and in particular, because there are no handle holes formed on either the front or back of the lower part of the packaging device, it is not suitable for two people to carry the lower part of the packaging device by supporting it with their hands from both the front and back.

The packaging structure of Patent Document 2 also has the same problems as the packaging device of Patent Document 1, since only a pair of left and right handle holes are formed in the upper and lower rear end portions of the packaging structure.
The packaging structure of Patent Document 3 is fixed to a pallet member by front and rear vertically wound band members, and is based on the assumption that the packaging structure will be unwrapped on-site and then transported to the installation location. Therefore, there is a risk that the outer case of the packaged item will be scratched, soiled, or dented when transporting through narrow passages such as under the eaves.

The object of the present invention is to provide a packaging structure that allows handles to be formed at the lower front and rear parts of the packaging structure for a hot water storage device using only packaging materials.

The packaging structure for a hot water storage device according to claim 1 is a packaging structure comprising a front packaging material covering the front surface of the hot water storage device and a rear packaging material covering the rear surface, the hot water storage device comprising an outer case and a plurality of legs supporting the outer case, a lower packaging material passing between the legs and covering the lower front surface, bottom surface and lower rear surface of the hot water storage device, the lower packaging material having a front material covering the lower front surface and a rear material covering the lower rear surface, and the front material and rear material each having a handle.

According to the above configuration, a lower packaging material is provided that covers the lower front, bottom and lower rear of the hot water storage device, so that the bottom of the hot water storage device can be covered and reliably protected.
In addition, handles are provided on the front material covering the lower part of the front surface and the rear material covering the lower part of the rear surface, so that the hot water storage device can be transported by two people supporting the handles on the lower part of the front surface and the handles on the lower part of the rear surface of the packaging structure for the hot water storage device from both the front and rear sides.

The packaging structure for the hot water storage device of claim 2 is the invention of claim 1, characterized in that the lower packaging material is arranged closer to the hot water storage device than the front packaging material and the rear packaging material, the handle of the front material comprises a front opening that communicates with a handle opening formed in the front packaging material, and the handle of the rear material comprises a rear opening that communicates with a handle opening formed in the rear packaging material.

According to the above configuration, the handle of the front material consists of a front opening that communicates with the handle opening of the front packaging material, so the handle opening and the front opening make the handle as thick as two packaging materials, making it easy to hang on. Similarly, the handle of the rear material consists of a rear opening that communicates with the handle opening of the rear packaging material, so the handle opening and the rear opening make the handle as thick as two packaging materials, making it easy to hang on.

The packaging structure for the hot water storage device of claim 3 is characterized in that, in the invention of claim 1, the lower packaging material is arranged closer to the hot water storage device than the front packaging material and the rear packaging material, the handle of the front material is made of a front square cylinder wrapped with the corrugated cardboard material that constitutes the lower packaging material, this front square cylinder protrudes outward from a front opening hole formed in the front packaging material, and the handle of the rear material is made of a rear square cylinder wrapped with the corrugated cardboard material, this rear square cylinder protrudes outward from a rear opening hole formed in the rear packaging material.

According to the above configuration, the front square cylinder that constitutes the handle of the front material protrudes outward from the front opening hole of the front packaging material, so it can be securely held. Similarly, the rear square cylinder that constitutes the handle of the rear material protrudes outward from the rear opening hole of the rear packaging material, so it can be securely held.

As described above, the present invention provides a variety of effects.

An oblique view showing the packaging structure of a hot water storage device according to the first embodiment of the present invention. FIG. 2 is an exploded perspective view of the packaging structure of FIG. 1 . A vertical cross-sectional side view of the hot water storage device and packaging structure of Figure 1. An oblique view of the packaging structure of a hot water storage device in a modified example. An oblique view showing the packaging structure of a hot water storage device according to Example 2 of the present invention. FIG. 6 is an exploded perspective view of the packaging structure of FIG. 5 . A vertical cross-sectional side view of the hot water storage device and packaging structure of Figure 5. An oblique view of the packaging structure of a hot water storage device in a modified example.

The following describes the form for implementing the present invention based on examples.

First, a hot water storage device to which the packaging structure of the present invention is applied will be described.
As shown in Figures 1 to 3, the hot water storage device 1 of this embodiment includes an auxiliary heat source unit that generates hot water, a hot water storage tank that stores hot water for hot water supply, auxiliary equipment including a pump, sensors, piping and piping joints, and a control box. A cylindrical hot water storage tank is disposed at the rear of the hot water storage device 1 and is covered with exterior cases 2 and 3, and the auxiliary heat source unit, auxiliary equipment and control box are disposed at the upper and middle sections of the front of the hot water storage device 1 and are covered with exterior case 2. Note that the front, rear, left and right indicated by the arrows in Figure 1 will be described as front, rear, left and right. As shown in Figure 1, the hot water storage device 1 has a front-to-rear width and a left-to-right width that is smaller than the front-to-rear width.

As shown in Figures 1 to 3, the hot water storage device 1 has legs 4 that support the outer case 2, and a pair of base members 1a are provided at the lower end of the hot water storage device 1 for fixing the hot water storage device 1 to a pallet 11, which will be described later.

Next, the packaging structure 10 of the hot water storage device 1 will be described.
1 to 3, this packaging structure 10 includes a pallet 11 for mounting and fixing the hot water storage device 1, a pair of front packaging members 12 and rear packaging members 13 that cover the front and rear of the hot water storage device 1, a top member 14 and a buffer member 15 that cover the top of the hot water storage device 1, and a lower packaging material 16, and these components are attached so as to cover most of the outer surface of the hot water storage device 1. Note that FIG. 1 shows the hot water storage device 1 in a packaged state.

Next, the pallet 11 will be described.
The pallet 11 is made of wood and has a pair of left and right base plates 11a and five square timbers 11b fixed onto the base plates 11a. Two square timbers 11b are fixed to the front ends of the pair of base plates 11a, two square timbers 11b are fixed to the rear ends of the pair of base plates 11a, and one square timber 11b is fixed to the center of the pair of base plates 11a in the front-to-rear direction. The pair of base members 1a at the lower end of the hot water storage device 1 are fixed to the square timbers 11b of the pallet 11 with four bolts.

Next, the front packaging material 12 and the rear packaging material 13 of the packaging structure 10 will be described.
1 and 2, the front packaging material 12 and the rear packaging material 13 are each made of thick cardboard material and are U-shaped in plan view with an open front, and extend vertically along the vertical direction of the hot water storage device 1. The overall length of the front packaging material 12 and the rear packaging material 13 in the vertical direction is set to be approximately the same as the overall length of the hot water storage device 1. The front packaging material 12 and the rear packaging material 13 are attached so as to cover and protect the front and rear parts of the hot water storage device 1. The upper end portions of the front packaging material 12 and the rear packaging material 13 are inserted inside a box-shaped top member 14 described later.

Next, the top member 14 will be described.
As shown in Figures 1 to 3, the top member 14 is a box having a width approximately the same as the left-right width of the hot water storage device 1, and this top member 14 is intended to package and protect the upper part of the hot water storage device 1, and the cushioning member 15 placed on the upper surface of the top member 14 is intended to prevent the hot water storage device 1 from moving or shaking during transportation.

The top member 14 is constructed from cardboard material as a box body that is open downwards and can be placed over the upper end of the hot water storage device 1. The front-to-back width of the top member 14 is set to be approximately the same as the front-to-back width of the hot water storage device 1, and the left-to-right width of the top member 14 is set to be approximately the same as the left-to-right width of the hot water storage device 1.

Next, the buffer member 15 will be described.
The buffer section 15 is for preventing movement or shaking of the hot water storage devices 1 when the hot water storage devices 1 are arranged in a row on the bed of a truck when the hot water storage devices 1 are transported to a delivery destination. The buffer member 15 is made of corrugated cardboard, and the left-right width of the buffer member 15 is set to be approximately the same as the left-right width of the pallet 11.

The cushioning member 15 has a top plate portion 15a, a pair of cushioning functional parts 15b that are integrally provided on both left and right ends of the top plate portion 15a, and a band corresponding part 15c that extends forward and backward from the front and rear ends of the top plate portion 15a. When the cushioning member 15 is fixed by the band member 19a, the side surfaces of the pair of cushioning functional parts 15b abut against the left and right side surfaces of the top member 14, respectively.

The cushioning member 15 is formed in a rectangular shape that is elongated in the front-to-rear direction, excluding the cushioning functional portion 15b, and the front-to-rear width of the cushioning member 15 is set to be approximately the same as the front-to-rear width of the hot water storage device 1, and the left-to-right width of the cushioning member 15 is set to be the same as the left-to-right width of the top member 14.

A cushioning function section 15b having a length of approximately 1/2 the front-to-rear width is integrally formed in the center of the length direction of the left end of the cushioning member 15, and a cushioning function section 15b having a length of approximately 1/2 the front-to-rear width is integrally formed in the center of the length direction of the right end of the cushioning member 15. Band corresponding sections 15c that are fastened by multiple band members 19a are formed in the front and rear parts of the cushioning member 15, except for the part where the pair of cushioning function sections 15b are joined.

The pair of buffer functional parts 15b are each composed of a rectangular cylinder made of wound cardboard. Each buffer functional part 15b is formed so that its upper end surface is located on the same plane as the upper end surface of the buffer member 15. Each buffer functional part 15b has an internal oblique side plate portion, which increases the strength of each buffer functional part 15b.

Since the left-right width of the pallet 11 and the left-right width of the cushioning member 15 are set to be approximately equal, when multiple hot water storage devices 1 are aligned in the left-right direction, the cushioning function portion 15b abuts against the cushioning function portion 15b of the packaging structure 10 of an adjacent hot water storage device 1.
Therefore, even if inertial forces or vibrations act on the hot water storage device 1 when the truck stops during transportation, the buffer function part 15b abuts against the adjacent buffer function part 15b, so that the hot water storage device 1 can be stably maintained in a vertical position, and multiple hot water storage devices 1 can be transported safely.

Next, the lower packaging material 16 made of corrugated cardboard will be described.
A lower packaging material 16 is provided which passes between the legs 4 of the hot water storage device 1 and covers the lower front, bottom and lower rear of the hot water storage device 1.
The lower packaging material 16 has a front material 16a that covers the lower front surface of the hot water storage device 1, a rear material 16b that covers the lower rear surface, and a bottom material 16c that covers the bottom surface, and the front material 16a and the rear material 16b are provided with handles 16d and 16e, respectively. The handles 16d and 16e are formed of elongated openings in the left-right direction that allow a hand to be inserted. However, in the manufacturing process, when the handles 16d and 16e are punched out, the punched pieces are folded back toward the upper side of the inner surface without being cut, making it easy to hold them.

The lower packaging material 16 is disposed closer to the hot water storage device 1 (i.e., on the inside) than the front packaging material 12 and the rear packaging material 13, and the handle 16d of the front material 16a is a front opening that communicates with the handle opening 12a formed in the front packaging material 12, and the handle 16e of the rear material 16b is a rear opening that communicates with the handle opening 13a formed in the rear packaging material 13.

Next, the band members 19a and 19b will be described.
As shown in Figure 1, when the lower packaging material 16, the front packaging material 12, the rear packaging material 13, the top member 14, and the cushioning member 15 are attached to the hot water storage device 1, two band members 19a are wrapped vertically around the front of the hot water storage device 1, two band members 19b are wrapped vertically around the rear of the hot water storage device 1, and one band member 19c is wrapped horizontally around the middle portion of the hot water storage device 1.

The two band members 19a that bind the front of the hot water storage device 1 tighten the front band corresponding part 15c of the cushioning member 15, and the two band members 19b that bind the rear tighten the rear band corresponding part 15c of the cushioning member 15. The four band members 19a and 19b secure the lower packaging material 16, the top member 14, and the cushioning member 15 to the hot water storage device 1.

One band member 19c is placed on the inner periphery of the four band members 19a, 19b, and this band member 19c secures the pair of front packaging material 12 and rear packaging material 13 to the hot water storage device 1. In addition, since the four band members 19a, 19b are wrapped around the base member 1a of the hot water storage device 1, the hot water storage device 1 and its packaging structure 10 can be separated from the pallet 11 by removing the four bolts that secure the pair of base members 1a to the pallet 11.

The function and effect of the packaging structure 10 of the hot water storage device 1 of the present invention will be described.
According to this packaging structure 10, a lower packaging material 16 is provided to cover the lower front, bottom, and lower rear of the hot water storage device 1, so that the bottom of the hot water storage device 1 can be covered and reliably protected.
In addition, the lower packaging material 16 has a front material 16a covering the lower part of the front surface and a rear material 16b covering the lower part of the rear surface, and the front material 16a and the rear material 16b are respectively provided with handles 16d, 16e, so that the hot water storage device 1 can be transported by two people supporting the handle 16d on the lower part of the front surface of the packaging structure 10 and the handle 16e on the lower part of the rear surface from both the front and rear sides without unpacking the hot water storage device 1.

In particular, handle 16c of front material 16a consists of a front opening that communicates with handle opening 12a of front packaging material 12, so the handle opening 12a and the front opening form a handle that is as thick as two packaging materials, allowing for a secure grip. Similarly, handle 16d of rear material 16b consists of a rear opening that communicates with handle opening 13a of rear packaging material 13, so the handle opening 13a and the rear opening form a handle that is as thick as two packaging materials, allowing for a secure grip.

An example in which the method of hanging the band members in the packaging structure 10 is changed will be briefly described.
As shown in Fig. 4, in this packaging structure 10A, one band member 19d is provided to be wound vertically around the left side of the hot water storage device 1, one band member 19e is provided to be wound vertically around the right side of the hot water storage device 1, and one band member 19c is provided to be wound horizontally around the middle part of the hot water storage device 1. This packaging structure 10A is economical because it is only necessary to provide three band members 19d, 19e, and 19c.

Second embodiment A packaging structure 10B for a hot water storage device according to a second embodiment will be described with reference to FIGS.
This packaging structure 10B for a hot water storage device has a modified handle formed on the lower packaging material 16B, and a modified handle opening 12b in the front packaging material 12B and a modified handle opening 13b in the rear packaging material 13B. Therefore, the same symbols are used for the same components as in the above embodiment, and descriptions are omitted; only the different configurations will be described.

A handle extending in the left-right direction is formed at the upper end of the front material 16a of the lower packaging material 16B, and this handle is composed of a front square cylinder 16f wrapped in cardboard. Similarly, a handle extending in the left-right direction is formed at the upper end of the rear material 16b of the lower packaging material 16B, and this handle is composed of a rear square cylinder 16g wrapped in cardboard.

The front packaging material 12B is formed with a handle opening 12b extending in the left-right direction into which the front square tube 16f of the front material 16a can be inserted. Similarly, the rear packaging material 13B is formed with a handle opening 13b extending in the left-right direction into which the rear square tube 16g of the rear material 16b can be inserted.

In the packed state, the front square cylinder 16f on the front side can be put into the handle opening 12b and protruded forward, and the rear square cylinder 16g on the rear side can be put into the handle opening 13b and protruded backward.
The front end of the front square cylinder 16f and the front end of the pallet 11 are located in the same vertical plane, and the rear end of the rear square cylinder 16g and the rear end of the pallet 11 are located in the same vertical plane.

The function and effect of the packaging structure 10B for a hot water storage device described above will be described.
The front square cylinder 16f constituting the handle of the front material 16a protrudes outward from the front opening hole 12b of the front packaging material 12B, so that it can be securely held. Similarly, the rear square cylinder 16g constituting the handle of the rear material 16b protrudes outward from the rear opening hole 13b of the rear packaging material 13B, so that it can be securely held. Moreover, both the front square cylinder 16f and the rear square cylinder 16g have excellent strength, so there is no risk of them breaking.

The manner in which the band members are hung in the packaging structure 10B in FIG. 5 is the same as the manner in which the band members are hung in the packaging structure 10 in FIG. 1. The manner in which the band members are hung in the packaging structure 10C in FIG. 8, which is a modified example, is the same as the manner in which the band members are hung in the packaging structure 10A in FIG. 4.

In addition, although the hot water storage device 1 in this embodiment has been described as an example having an auxiliary heat source unit, the hot water storage device 1 may also be one in which the hot water storage tank unit and the heat pump unit are integrally incorporated within the outer case.
In addition, those skilled in the art can implement the present invention in various modified forms without departing from the spirit of the present invention, and the present invention includes such modified forms.

1 Hot water storage device 2, 3 Outer case 4 Legs 10, 10A, 10B, 10C Packaging structure 11 Pallet 12, 12B Front packaging member 12b Front opening hole 13b Rear opening hole 13, 13B Rear packaging member 16, 16B Lower packaging member 16a Front material 16b Rear material 16d, 16e, 16f, 16g Handle 16d Front opening 16e Rear opening 16f Front square cylinder 16g Rear square cylinder

Claims (3)

A packaging structure including a front packaging material that covers the front surface of the hot water storage device and a rear packaging material that covers the rear surface of the hot water storage device,
The hot water storage device includes an outer case and a plurality of legs supporting the outer case,
A lower packaging material is provided that passes between the legs and covers the lower front surface, the lower bottom surface, and the lower rear surface of the hot water storage device;
A packaging structure for a hot water storage device, characterized in that a handle is provided on each of the front material covering the lower front surface of the lower packaging material and the rear material covering the lower rear surface of the lower packaging material. The packaging structure for a hot water storage device according to claim 1, characterized in that the lower packaging material is disposed closer to the hot water storage device than the front packaging material and the rear packaging material, the handle of the front material comprises a front opening that communicates with a handle opening formed in the front packaging material, and the handle of the rear material comprises a rear opening that communicates with a handle opening formed in the rear packaging material. the lower packaging material is disposed closer to the hot water storage device than the front packaging material and the rear packaging material, the handle of the front material is made of a front rectangular cylinder wound with the corrugated cardboard material constituting the lower packaging material, and the front rectangular cylinder protrudes outward from a front opening hole formed in the front packaging material,
The packaging structure for a hot water storage device as described in claim 1, characterized in that the handle of the rear material consists of a rear square cylinder wrapped around the cardboard material, and this rear square cylinder protrudes outward from a rear opening hole formed in the rear packaging material.

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