JPH0615873Y2 - Packaging materials for pulp molding - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a packaging material for pulp molding for packaging a washbasin and the like made of ceramics.

[Conventional technology]

Since pottery products such as washbasins and toilet bowls are easily broken and have a large capacity, it takes a lot of time and effort to pack them in the distribution process. For example, in the conventional packaging of washbasins, it is common to prepare multiple corrugated cardboard boxes, combine several of them to wrap almost the entire washbasin, and then tighten the band around it. It was

However, since various products with various specifications are shipped,
It is necessary to classify and prepare corrugated cardboard that matches the shape and size of the product into multiple parts, and select the parts that are suitable for the product to be shipped.

To address such a problem, the present applicant has proposed a pulp-molded packaging material in Japanese Patent Application No. 63-67221 filed earlier. This is a combination of a base pad that receives the upper surface of the basin upside down and a top pad that covers the lower surface. After wrapping the entire basin, the band is tightened and packed.

[Problems to be solved by the device]

By using such a base pad and a top pad, the work is simpler than the conventional packaging using a corrugated board, and the product can be protected surely.

On the other hand, many pottery products such as washbasins and other toilet bowls have complicated shapes and have an outer shape that is a combination of flat and curved surfaces. For this reason, if the packing material also has a shape that conforms to this outer shape, the packing work becomes simple and bulky, which is preferable in terms of physical distribution.

However, since the pulp mold is manufactured by mold manufacturing, the mold has a complicated curved surface, which considerably increases the cost of manufacturing the mold. To deal with such a problem of the mold, a pressing process is performed after the mold is manufactured to adjust the shape. However, since pulp is used as the raw material, if the strain due to bending is too large, the strength of the bent portion will be significantly reduced. For this reason, it is not always possible to perform packaging that follows the shape of the product to be wrapped, leaving room for improvement.

On the other hand, even in the manufacturing stage, there are many places where it is difficult to form a pad having a curved surface by using a pulp mold. Since the pulp mold is formed by papermaking, deformation due to its own weight is unavoidable in the stage before drying, and this tendency is particularly strong in the case of a complicated shape. For this reason, in the case where the molding is completed by papermaking, the shape of the pad is also limited, and there is a possibility that the demand cannot be met.

Therefore, an object of the present invention is to allow the packaging material to be further fitted to the product to be packaged so that the product can be packaged.

[Means for Solving the Problems]

A packaging material for valve molding capable of covering a product including a curved surface according to the present invention along an outer shape thereof, which is formed into a substantially umbrella shape following the surface of the product and has its apex. From the vicinity of the edge toward the edge, a plurality of convex mountain fold lines on the front surface side and concave valley fold lines on the rear surface side are radially formed, and a plurality of holes are formed on the ridge line formed by the mountain fold line and the valley fold line. Is opened at a predetermined interval.

The shape of the holes formed on the ridge can be circular.

[Action]

By forming a plurality of mountain fold lines and valley fold lines radially from the apex toward the edge from the apex, it is possible to use these fold lines to transform the packaging material into a shape that follows the outer contour of the product. Easier to do. And by making multiple holes in the ridgeline formed by the fold line,
Bendability is improved. Therefore, it is possible to realize a shape corresponding to a curved surface, which is difficult to produce by paper making in a pulp mold, and it is possible to perform packaging that fits the outer shell of the product.

Also, if the holes on the ridge line are circular openings, when an external force is applied, for example, if it is a quadrangular opening, stress concentrates at the corners and causes tearing, but it is possible to disperse the stress. It is also possible to prevent tearing. Furthermore, by arranging the holes at arbitrary positions according to the shape of the product, it can be applied to any product having a different shape.

〔Example〕

Hereinafter, the features of the present invention will be specifically described with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view showing an exploded view of a washbasin and a packing material.

The washbasin 1 has two base pads A and 1 upside down.
Two top pads B are stacked and packed in two stages. Moreover, one washbasin 1 can be packed with one base pad A and one top pad B. A rim 1a is formed in a substantially rectangular shape around the washbasin 1, and a drain port 1b projects from the lower surface. A drainage channel 1c for overflow is similarly formed to project from the back surface to the drainage port 1b.

Both the base pad A and the top pad B are molded by pulp molding, and the base pad A is shown in FIG.

The base pad A is formed in a trough shape as shown in the drawing, and has a bottom wall 2 on which the washbasin 1 is placed and which receives an upper surface portion thereof, and a side wall 3 is raised on the entire circumference thereof. The bottom wall 2 and the side wall 3 are formed with a plurality of ribs 2a, 3a for receiving the washbasin 1. These ribs 2a and 3a receive the lower surface and the peripheral surface when the washbasin 1 is turned upside down, and at the same time, as shown in FIG.
Since it becomes the grooves 2b and 3b when turned over as shown in (b), it is used for band hanging.

Further, a bending margin 4 is formed on the bottom wall 2 so as to draw a rectangular area. This folding allowance 4 is the base pad A
It is formed by pressing so as to have a depression at the time of manufacturing. Then, four flappers 5 are foldably provided in a portion surrounded by the folding margin 4. These flappers 5 are formed by slits 5b that open an opening 5a at a position biased to the back side and run from the opening 5a toward the four corners of the bending margin 4. Therefore, each of the four flappers 5 has a second
It can be bent upward in Fig. (A).

FIG. 3 is a perspective view of the top pad B as viewed from the front side and the back side.

The top pad B has a curved shape as a whole to receive the lower surface of the washbasin 1, and a chamber 6 that covers the drain port 1b of the washbasin 1 is provided in the portion that is biased to the back side. In this chamber 6, a protrusion 6a that fits into the drain port 1b
Is formed and is used for positioning when it is attached to the drainage port 1b. Around the chamber 6, a reinforcing rib 7 for reinforcement is provided.
Is formed, and a cross-shaped banding groove 8 with the chamber 6 as an intersection runs. Reference numeral 8a is a viewing window for confirming the product label attached to the bottom of the washbasin 1.

Further, a plurality of holes 9 are formed on the front side and the back side of the chamber 6. These holes 9 are arranged radially from the chamber 6 toward the four corners, and the holes 9 included in one row are on a common straight line. That is, as shown in FIGS. 3 (a) and 3 (b), the holes 9 are arranged on a bending line that gives bending at the stage of after-pressing, and the mountain fold line 9a and the back surface when viewed from the front side are seen. When lined up above the valley fold line 9b.
By providing these holes 9, the cross-sectional area becomes small when pushing and bending along the mountain fold line 9a and the valley fold line 9b, so that it is possible to easily perform bending work by giving a light bend. Therefore, if the arrangement of the holes 9 in which the shape of the top pad B can be set so as to follow the lower surface of the washbasin 1 is selected, the washbasin 1 can be packaged according to its outer shape.

Here, in the manufacture of the base pad A and the top pad B, the deformation due to its own weight cannot be ignored in the undried state after the papermaking process. This is particularly remarkable in the case where the top pad B has a curved surface, and it is quite difficult to mold a product having the curved surface properly held in the papermaking process. Therefore, in the molding of the top pad B, if it is molded into a relatively flat shape in the papermaking process and is formed into a required shape by post-pressing after drying, it is possible to perform molding with less influence of deformation after papermaking. Become. And
In the case of after-pressing, if the arrangement lines of the holes 9 are made to correspond to the mountain fold and valley fold lines 9a and 9b, the bendability due to the existence of the holes 9 can be effectively used, and appropriate molding can be performed. Can be done. Further, also in the packing process, when the band is fastened, it is easy to bend along the line along the arrangement line of the holes 9, so that the product can be packed more closely.

The above-described packaging of the washbasin 1 with the base pad A and the top pad B can be stacked in two or more layers as shown in FIG. 1, and the procedure for the two-layer stacking will be described below. To do.

First, the lower base pad A is placed on the binding line, and the washbasin 1 is placed upside down on this. That is, as shown in FIG. 1, the base pad A is set in a posture in which the bottom wall 2 is turned down, and thereafter, the upper surface of the washbasin 1 is turned downward.
Place it on top. At this time, the washbasin 1 by the ribs 2a, 3a
The bottom surface of the rim and the peripheral surface of the rim 1a are supported, and a buffer against external force can be provided. When a plurality of washbasins 1 are stacked and packed, the base pad A located at the lowest level may be flat without the flapper 5.

Next, as shown in FIGS. 5 and 6, another base pad A is put on the washbasin 1. In this case, the posture of the bottom base pad A is reversed, and the washbasin 1 is also set to be the reverse of the bottom one. When the second-stage base pad A is placed, the drainage port 1b and the drainage channel 1c protruding from the bottom surface of the lower basin 1 are bent and deformed by the flapper 5 so that the base pad A
It will stick out to the top. That is, the bottom wall 2 of the second-stage base pad A is placed on the rim bottom surface 1d of the basin 1 placed below, and the drainage port 1b of the lower basin 1 breaks through the flapper 5 and goes up. Become.

After stacking the washbasins 1 using the two base pads A, the top pad B is placed on the upper washbasin 1. At this time, since the protrusion 6a of the chamber 6 is fitted into the drain port 1b, the top pad B can be easily positioned, and the hole 9 is used to bend downward along the mountain fold line 9a and the valley fold line 9b. The portion is covered so as to follow the bottom surface of the washbasin 1.

Further, after the top pad B is placed, the two bands 10a and 10b are laid over and integrated with the binding machine by the binding machine. These bands 10a and 10b intersect each other in a cross shape on the upper surface of the chamber 6, and form the groove 8 of the top pad B and the base pad A.
It is hung along the grooves 2b and 3b.

In such a packing structure, the upper and lower two basins 1 have the drain port 1b of the lower basin protruding from the flapper 5 and entering into the ball portion 1e of the upper basin 1. For this reason, the height of the washbasin 1 in the height direction is reduced by this amount, and the overall capacity can be reduced even when stacked. Therefore, handling in the distribution process is facilitated, and the storage space can be significantly reduced even when stocked as inventory. Further, the drain port 1b is fitted into the flapper 5, so that the upper base pad A is naturally positioned with respect to the lower base pad A and the washbasin 1. Therefore, the step of alignment is not necessary, and the upper one is restrained by the lower one, so that the collapse of the load after the packing work and the completion of the packing can be prevented.

Further, as described above, the top pad B is provided with the plurality of holes 9 to facilitate bending along the arrangement lines. Therefore, if the arrangement lines of the holes 9 can be bent so as to follow the outer shape of the washbasin 1, the top pad B can be fitted into the washbasin 1 and packed.

Furthermore, since the top pad B is provided with the viewing window 12, it is possible to check the product number display of the washbasin 1 without unpacking after packing. Therefore, it is not necessary to attach a label or the like for indicating the product number to the surface of the packing material, and the packing process can be reduced.

It should be noted that the packaging of the washbasin is described in the embodiment, but it goes without saying that the packaging material of the present invention can be used for packaging other products.

[Effect of device]

In the present invention, the folding lines of the peaks and valleys are formed radially from the vicinity of the apex of the umbrella-shaped packing material to the edge, so that it can be easily bent and deformed according to the outer contour of the product, and it can be bent along the ridgeline. By opening a plurality of holes at intervals that can follow the shape of the product, it is possible to pack the product around the product, and it is possible to realize reliable protection of the product without making it bulky.

In addition, since the bending deformation can be further promoted by making a hole in the ridgeline of the fold line, workability is improved, and since the hole is circular, stress is not concentrated on the edge of the opening and tearing may occur. Absent.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a case of packing a washbasin with the packing material of the present invention, and FIG. 2 (a) is a perspective view of a base pad.
FIG. 3 (b) is a perspective view in which the top pad is turned upside down, FIG. 3 (a) is a perspective view of the top pad, FIG. 3 (b) is a perspective view in which the top pad is turned over, and FIG. Front sectional view when bent, Fig. 4
(b) is a side sectional view, and FIGS. 5 and 6 are vertical sectional views of a packaging structure in which washbasins are stacked in two stages. A: Base pad, B: Top pad 1: Washbasin, 1a: Rim 1b: Drainage port, 1c: Drainage channel 1d: Bottom rim, 2: Bottom wall 2a: Rib, 2b: Groove 3: Side wall, 3a: Rib 3b : Groove 4, Folding allowance 5: Flapper, 5a: Opening 5b: Slit, 6: Chamber 6a: Projection, 7: Rib 8: Groove, 8a: Viewing window 9: Hole, 9a: Mountain fold line 9b: Valley Folding line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 63-164492 (JP, U) Shoko 34-2789 (JP, Y1)

Claims (2)

[Scope of utility model registration request] 1. A packaging material for valve molding, which is capable of covering a product including a curved surface in an outer shape along the outer shape thereof, and which is formed in a substantially umbrella shape following the surface of the product, A plurality of convex mountain fold lines on the front surface side and concave valley fold lines on the rear surface side are radially formed from the vicinity of the apex toward the edge, and a plurality of ridge lines are formed on the ridge line formed by the mountain fold line and the valley fold line. A packaging material for pulp molding, in which holes are opened at predetermined intervals. 2. The packaging material for pulp molding according to claim 1, wherein the shape of the plurality of holes on the ridge is circular.