JP2003221072A - Packing tray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cushion a shock to an article when the article packed in the packing tray drops from a bottom of the tray, as compared with a conventional packing tray with a bottom having no step, because the bottom is constituted with a contact region and a non-contact region. <P>SOLUTION: The packing tray has a bottom 1 and a peripheral wall 2 which is formed so as to surround the bottom. At least one setting member 3 is formed in each of walls 2a constituting the peripheral wall and facing each other on one side thereof, respectively. The bottom is constituted with a contact region 1a formed by swelling the bottom downward and a non-contact region 1b formed in a peripheral region of the contact region. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing tray arranged on the bottom or the head of an article when packaging large articles such as electric appliances such as refrigerators and washing machines, air conditioners and furniture. It is a thing.

[0002]

2. Description of the Related Art Conventionally, there is known a packing tray having a recess into which the bottom of an article can be inserted, the recess having a substantially inverted U-shaped cross section and surrounded by a peripheral wall member having an open bottom. (For example, JP-A-9-58751 and JP-A-2001-151266).

[0003]

In the above-mentioned conventional packing tray, when an impact is applied to the packing tray from the lateral direction, the cross-sectional shape is a substantially inverted U shape and the lower part is opened. The impact is absorbed and mitigated by the peripheral wall member. By the way, in the middle of transportation, packed articles may fall, and at the time of such a drop, a large impact is applied to the corner of the packing tray, but in the case of the conventional packing tray, Since the peripheral wall member that absorbs and absorbs the impact has a structure in which the cross-sectional shape is a substantially inverted U shape and the lower part is opened, the impact is applied to the lower end portion of the outer wall made of one plate member of the peripheral wall member. Therefore, there is a problem that the packaging tray cannot sufficiently absorb and absorb such an impact, and the packaging tray and the packaged articles are damaged.

In addition, the article is placed on the packing tray, the cover is placed on the upper part of the article, and then a binding cord is used to relieve the problem. In the case of the conventional packing tray, the peripheral wall member has a cross section. Since the shape is a substantially inverted U shape and the lower part is open, the outer wall made of one plate of the peripheral wall member may be deformed or damaged due to the tightness caused by the binding cord, so that the outer wall is firmly tightened. There was a problem that I could not give up.

An object of the present invention is to solve the problems of the above-mentioned conventional packing tray.

[0006]

In order to achieve the above-mentioned object, the present invention provides a packing tray having a bottom portion and a peripheral wall portion formed so as to surround the bottom portion.
At least one mounting member is formed on each of the opposing wall portions forming the peripheral wall portion, and the bottom portion is
A contact region formed by bulging downward and a non-contact region formed in a peripheral region of the contact region, and secondly, a contact region forming a bottom portion,
It is configured by a central convex portion formed in the central region of the bottom portion and corner convex portions formed at the four corner portions of the bottom portion,
Thirdly, the contact area that constitutes the bottom is defined by a central convex portion formed in the central area of the bottom, corner convex portions formed at the four corner portions of the bottom portion, the central convex portion and the corner convex portion. And a connecting convex portion for connecting the parts to each other. Fourthly, a concave portion is formed in a wall portion on which the placing member is arranged, and fifthly, the placing member. Is formed on at least the opposing long wall portions forming the peripheral wall portion, and sixthly,
The inner corner portion of the upper end of the long wall portion is configured to be located outside the extension line of the inclined portion that configures the mounting member. Seventhly, the long wall portion located between the mounting members is formed. The central region is projected outward, and eighthly, an appropriate number of concave portions are formed in the upper horizontal portion which constitutes the mounting member.

[0007]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

1 is a bottom having a substantially rectangular plane shape,
Reference numeral 2 is a peripheral wall portion formed from a long wall portion 2a and a short wall portion 2a facing each other, which are slightly inclined outward from the peripheral edge of the bottom portion 1. A predetermined interval is provided at a corner formed by the long wall portion 2a and the bottom portion 1 of the peripheral wall portion 2 which face each other,
The long wall portion-side mounting member 3 is formed, and the peripheral wall portion 2 is also formed.
A short-wall portion-side mounting member 4 is formed at a substantially central portion of a corner formed by the short-wall portion 2b and the bottom portion 1 that face each other. The long-wall-side mounting member 3 and the short-wall-side mounting member 4 are formed by partially bulging the peripheral wall 2 and the bottom 1 inward of the packing tray. Below the part-side mounting member 3 and the short-wall part-side mounting member 4 is formed a space.

In the present embodiment, two long wall portion side mounting members 3 are formed on each of the opposing long wall portions 2a, but three or more long wall portion mounting members 3 may be formed.
In addition, the short wall portion side mounting member 4 is attached to the opposite short wall portion 2a,
Each one is formed, but if necessary,
It is possible to omit the formation of the short wall portion side mounting members 4 on the short wall portions 2a, or to form two or more short wall portion side mounting members 4 on the opposing short wall portions 2a, respectively. You can also do it. The numbers of the long-wall-side mounting members 3 and the short-wall-side mounting members 4 can be determined by timely considering the size of the packing tray, the size and weight of the articles to be packed, and the like.

The long-wall-side mounting member 3 formed on the opposing long-walls 2a has an upper horizontal portion 3a extending substantially horizontally from the vicinity of the upper end of the long-wall portion 2a, and a tip of the upper horizontal portion 3a. Of the movement restricting wall portion 3c, and a sloped portion 3b extending downward from the upper horizontal portion 3a and extending obliquely in a direction away from the upper horizontal portion 3a; A mounting portion 3d extending horizontally from the lower end, a substantially vertical vertical portion 3e reaching the bottom portion 1 downward from the tip of the mounting portion 3d, and opposing side wall portions 3 substantially vertical to the long wall portion 2a.
and f. Further, a concave portion 3g is formed along the movement regulation wall portion 3c at a corner formed by the movement regulation wall portion 3c and the placement portion 3d. This recess 3
The side surface of g of the movement restricting wall portion 3c side is formed flush with the movement restricting wall portion 3c. By forming such a concave portion 3g, it is possible to prevent the mounting portion 3d from being scraped by the contact of a right angle or an acute corner of an article mounted on the mounting portion 3d. If the corners of the article have an arcuate shape or a rounded shape and the mounting section 3d is not abraded even if the corners come into contact with each other, it is not necessary to provide such a recess 3g.

The short-wall-side mounting members 4 formed on the opposing short-walls 2b have an upper horizontal portion 4a extending substantially horizontally from the vicinity of the upper end of the short-wall portion 2b, and an upper horizontal portion. A movement restricting wall portion 4b extending substantially vertically downward from the tip of 4a,
A placing portion 4c extending horizontally from the lower end of the movement restricting wall portion 4b, a substantially vertical portion 4d that extends downward from the tip of the placing portion 4d to the bottom portion 1, and a substantially vertical portion to the short wall portion 2b. It is constituted by the side wall portion 4e facing each other. Further, a concave portion 4f is formed along the movement regulating wall portion 4b at a corner formed by the movement regulating wall portion 4b and the placing portion 4c.
The side surface of the recess 4f on the side of the movement restricting wall portion 4b is formed flush with the movement restricting wall portion 4b. Such a recess 4f
By forming the above, it is possible to prevent the mounting portion 4c from being scraped by the contact of a right angle or an acute corner of the article mounted on the mounting portion 4c. If the corners of the article have an arcuate shape or a rounded shape and the mounting section 4c is not abraded even if the corners come into contact with each other, it is not necessary to provide such a recess 4c. Further, an appropriate number of recesses 4a1 are formed in the upper horizontal portion 4a along the short wall portion 2b. In the upper horizontal portion 4a, such an appropriate number of recesses 4a1
By forming the above, the upper horizontal portion 4a is easily deformed even when the short wall portion 2b is impacted by being dropped on the packing tray in which the articles are packed, and therefore is placed on the placing portion 4c. It is possible to buffer the impact on the article being held. It should be noted that the recess 4a1 is formed in the long wall portion-side mounting member 3 described above.
It can also be formed on the upper horizontal portion 3a.

In the region of the long wall portion 2a where the long wall portion-side mounting member 3 is disposed, the lateral width of the long wall portion-side mounting member 3 (the interval between the side wall portions 3f facing each other substantially perpendicular to the long wall portion 2a) and Same or
A slightly wider recess 5 is formed. By forming such a concave portion 5, the long wall 2a of the packing tray in which the articles are packed is provided with the placement portion 3d on which the articles are placed even if an impact is applied by dropping or the like. Since the impact can be prevented from being directly applied to the part-side placement member 3, the impact on the article can be mitigated. The above-mentioned recess may be formed in the short wall portion 2b in which the short wall portion side mounting member 4 is arranged, if necessary. In addition, an elastic member such as a cord or a band for pressing the articles packed by the packing tray can be inserted into the recess 5 described above. When the tension member is inserted into the recess 5 and the article packed in the packing tray is tightened, the long-wall-side mounting member 3 functions as a tension member and damages the article. No, you can reinforce more strongly.

Further, the lower end of the central region 2a 'of the long wall portion 2a located between the long wall portion-side mounting members 3 (a boundary line with the bottom portion 1).
Is formed in a shape protruding to the outside. In the present embodiment, the central portion 2a at the lower end of the central region 2a '
1 projects outward, and the side portions 2a2 located on both sides of the central portion 2a1 are inclined toward the other long wall portion 2a. The upper end 2a3 of the central region 2a 'of the long wall portion 2a and the lower end composed of the central portion 2a1 protruding outward and the inclined side portion 2a2 are connected by a bending wall 2a ". By forming the “”, the strength and bending rigidity of the central region 2a ′ of the long wall portion 2a, which is particularly likely to be impacted when the packaging tray in which the articles are packaged is dropped, is easily deformed. Therefore, the impact on the article placed on the placing section 3d can be mitigated.

The bottom portion 1 includes a contact area 1a formed by bulging the bottom portion 1 downward so that the tray comes into contact with the floor when the packing tray is placed on a flat floor or the like, and a contact area. It is formed in two steps with a non-contact area 1b that does not contact the floor or the like formed in the peripheral area of 1a. The contact region 1a bulging downward includes a central cross-shaped convex portion 1a1 located in a central region of the bottom portion 1, corner convex portions 1a2 located near four corner portions of the bottom portion 1, and a central cross-shaped convex portion 1a1. And a strip-shaped connecting convex portion 1a3 for connecting the corner convex portion 1a2.
The central cross-shaped convex portion 1a1 located in the central region of the bottom portion 1 is
A portion 1a1 ′ along the short wall portion 2b, which extends substantially below a central region 2a ′ of the long wall portion 2a located between the long wall portion side mounting members 3 formed on the opposing long wall portions 2a, A portion 1a1 "extending along the long wall portion 2a extending substantially below the short wall portion-side mounting member 4 formed on the short wall portion 2b.
It is formed by and. In this way, by forming the bottom portion 1 in two steps, that is, the contact area 1a and the non-contact area 1b, when the packing tray in which the articles are packed falls from the bottom portion 1, there is no such a step-like bottom portion. The impact on the article can be mitigated as compared with the conventional packaging tray having the. Further, by forming the corner projections 1a2 near the four corners of the bottom part 1, it is possible to absorb the shock caused by the falling of the packing tray from the corners, and thus to mitigate the shock to the article. You can Further, by forming the central cross-shaped convex portion 1a1 located in the central region of the bottom portion 1 and the corner convex portions 1a2 located near the four corner portions of the bottom portion 1 by forming a belt-shaped connecting convex portion 1a3, When the packaging tray containing the is placed on a roller conveyor and transported,
It is possible to prevent the relatively small corner convex portion 1a2 from falling between the roller conveyors, which hinders smooth transportation, or the packaging tray in which the articles are stored is inclined. In addition, when the packing tray is not conveyed by the roller conveyor, the band-shaped connecting convex portion 1a3 may be omitted.

The inner corner portion 2a4 at the upper end of the long wall portion 2a forming the peripheral wall portion 2 is located outside the extension line L1 of the inclined portion 3b forming the long wall portion mounting member 3 (the long wall portion 2a of the peripheral wall portion 2).
Side). As shown by the dotted lines in FIGS. 4 and 5, when the long wall portion 2a is inclined in the direction of the article A placed on the placing portion 3d by an external force such as dropping, the upper end of the long wall portion 2a Since the inner corner portion 2a4 of the long wall portion 2a4 is located outside the extension line L1 of the inclined portion 3b that constitutes the long wall portion mounting member 3, first, the vertical side wall portion a1 of the article A has the long wall portion 2a of the long wall portion 2a. Angular inner corner 2a at the upper end
The flat inclined portion 3b comes into surface contact without contacting the flat portion 4, and therefore the flat inclined portion 3b can prevent the article A from being damaged. When the inner corner portion 2a4 of the upper end of the long wall portion 2a is located inside the extension line L1 of the inclined portion 3b forming the long wall portion mounting member 3, first, the vertical side wall portion of the article A is first. a1 is
The angular inner corner 2a4 at the upper end of the long wall 2a comes into contact with the upper wall 2a, so that the article A is easily damaged.

Reference numeral 6 is a long wall portion 2 which constitutes the peripheral wall portion 2.
a is a peripheral flange that extends substantially horizontally outward from the upper ends of the a and the short wall portion 2b, and 7 is an arrow indicating the directionality of the packing tray. In the present embodiment, the direction of the arrow 7 is , The long wall portion 2a. In addition, the mounting portions 3d that form the long-wall-side mounting member 3 and the mounting portions 4c that form the short-wall-side mounting member 4 are the mounting portions 3d, 4 and
When a protrusion or the like is hung on the lower surface of the article A placed on c, an appropriate recess or the like can be formed in order to avoid such a protrusion or the like.

The packing tray described above is integrally molded of synthetic resin by injection molding, blow molding, vacuum molding or the like.

When the article A is packed by using the above-mentioned packing tray, the vertical side wall portion a1 of the article A is mounted on the long wall portion side mounting member 3 on the movement restricting wall portion 3c and the short wall portion side. Placed on the placing portion 3d of the long wall side placing member 3 and the placing portion 4c of the short wall side placing member 4 of the packing tray so as to come into contact with or approach the movement restricting wall portion 4b of the placing member 4. To do. Also, the article A
A cover (not shown) is placed on the upper part of the cover, but this cover may be a packing tray having the above-mentioned configuration,
In this case, the packing tray is placed upside down. Next, a string member such as a string or band is inserted into the recess 5 or the like formed in the long wall portion 2a, and the string member is used.
The packing tray, the article A and the cover are closed together. After packaging the article A in this way, the packaging tray, the article A, and the entire cover are covered with a film such as a heat-shrinkable film. Of course, it is also possible to cover only the article A with a film such as a heat-shrinkable film before packaging and to omit coating with the film after packaging. As described above, in the article A, the vertical side wall portion a1 contacts or approaches the movement restriction wall portion 3c of the long wall portion side mounting member 3 and the movement restriction wall portion 4b of the short wall portion side mounting member 4. By arranging the article A, even if the article A tries to move in the lateral direction, the article A comes into contact with the movement restricting wall portions 3c and 4c and the movement thereof is suppressed. Therefore, the article A should be packed and conveyed in a stable state. You can

As described above, when the packing tray is turned upside down to cover the upper portion of the article and the packing tray is used as a cover, a recess is formed in the central portion of the opposing short wall portions 2b of the peripheral wall portion 2. 8 is provided, and the recess 8 of the packing tray is upside down.
It is also possible to insert a hand into and to perform work such as lifting or covering the top of the article.

Further, in the above-described embodiment, the corner portion formed by the long wall portion 2a and the bottom portion 1 of the peripheral wall portion 2 which face each other,
An example is shown in which two long-wall-side mounting members 3 are formed at a predetermined interval, but the corner portion formed by the long wall portion 2a and the bottom portion 1 of the peripheral wall portion 2 facing each other is shown. It is also possible to dispose only one long wall side mounting member 3 in the substantially central region. In this case, similarly to the above-described embodiment, in the region of the long wall portion 2a where the long wall side mounting member 3 is arranged,
The concave portion 5 may be formed, or the concave portion 5 may be formed in the area of another long wall portion 2a without forming the concave portion 5 in the area of the long wall portion 2a in which one long wall portion-side mounting member 3 is disposed. 5 can also be formed.

[0021]

Since the present invention has the constitution described above, it has the following effects.

Since the bottom portion is composed of the contact area and the non-contact area, when the packing tray in which the articles are packed falls from the bottom portion, compared to the conventional packing tray having such a stepless bottom portion. Thus, the impact on the article can be mitigated.

Since the contact area is constituted by the central convex portion formed in the central area of the bottom portion and the corner convex portions formed in the four corner portions of the bottom portion, the impact due to the dropping from the corner portion of the packing tray. Can be absorbed, and thus the impact on the article can be mitigated.

Since the central convex portion formed in the central region of the bottom portion and the corner convex portions formed at the four corner portions of the bottom portion are connected by the connecting convex portions, the corner convex portions fall between the roller conveyors. Therefore, it is possible to prevent smooth transportation from being hindered, or to prevent the packing tray containing the articles from tilting.

Since the recess is formed in the wall portion on which the placing member is arranged, the article is placed on the wall portion of the packing tray in which the article is packed even if an impact is applied to the wall portion by dropping or the like. Since it is possible to prevent a shock from being directly applied to the mounting member that is present, it is possible to reduce the shock to the article.

Since the placing member is formed on the opposing long wall portions forming the peripheral wall portion, the articles can be packed in a stable state and the strength and rigidity of the long wall portion can be increased.

Since the inner corner portion of the upper end of the long wall portion is located outside the extension line of the inclined portion forming the placing member, when the long wall portion is deformed, the inner side of the upper end of the long wall portion is inside. It is possible to prevent the corners from coming into contact with the article and damaging the article.

Since the central region of the long wall portion located between the mounting members is projected to the outside, there is a particularly high probability that a shock will be applied when the packaging tray in which the articles are packaged is dropped, and the deformation will occur. Since the strength and bending rigidity of the central region of the long wall portion are easily increased, the impact on the article placed on the placing portion can be mitigated.

Since an appropriate number of recesses are formed in the upper horizontal portion which constitutes the mounting member, even if a shock is applied to the packing tray in which the articles are packed by dropping or the like, the upper horizontal portion is deformed to cause a load. The impact on the article placed on the placing section can be buffered.

[Brief description of drawings]

FIG. 1 is a perspective view of a packing tray of the present invention.

FIG. 2 is a plan view of the packing tray of the present invention.

FIG. 3 is a rear perspective view of the packing tray of the present invention.

FIG. 4 is a vertical cross-sectional view along the short wall portion of the packing tray of the present invention.

FIG. 5 is a partially enlarged cross-sectional view of FIG.

FIG. 6 is a vertical cross-sectional view along the long wall portion of the packing tray of the present invention.

[Explanation of symbols]

A ... 1 ......... bottom 2 ... 3 ......... Mounting member on the long wall side 4 ・ ・ ・ ・ ・ ・ ・ Short-wall side mounting member

Claims (8)

[Claims] 1. A packaging tray having a bottom portion and a peripheral wall portion formed so as to surround the bottom portion, wherein at least one placing member is formed on each of the opposing wall portions constituting the peripheral wall portion. In addition, the packing tray is characterized in that the bottom portion is constituted by a contact region formed by bulging downward and a non-contact region formed in a peripheral region of the contact region. 2. The contact region forming the bottom portion is constituted by a central convex portion formed in a central region of the bottom portion and corner convex portions formed in four corner portions of the bottom portion. The packing tray according to claim 1. 3. A contact area forming a bottom portion, a central convex portion formed in a central area of the bottom portion, corner convex portions formed in four corner portions of the bottom portion, the central convex portion and the corner convex portion. The packaging tray according to claim 1 or 2, wherein the packaging tray is configured by a connecting convex portion that connects the portion. 4. The wall portion on which the mounting member is disposed is provided with a recessed portion.
The packaging tray according to any one of 1. 5. The packing tray according to any one of claims 1 to 4, wherein the mounting member is formed at least on opposing long wall portions forming a peripheral wall portion. 6. The packing tray according to claim 5, wherein an inner corner portion of an upper end of the long wall portion is located outside an extension line of an inclined portion forming the placing member. 7. The packing tray according to claim 5, wherein the central region of the long wall portion located between the mounting members is projected outward. 8. An appropriate number of recesses are formed in the upper horizontal portion which constitutes the mounting member.
The packaging tray according to any one of 1.