JPH08175582A - Support frame for packaging - Google Patents

Abstract

PURPOSE: To provide a support frame for packaging by which a plurality of packaging articles are kept separately and compactly and easily packed without decrease of the strength and the shock-absorbing property against falling of the package and further, remarkably improving the loading and transporting efficiency. CONSTITUTION: A support frame for packaging is formed of a synthetic resin foaming sheet and provided with the bottom plate 1 and side plates 2, 3 connected to both right and left sides of the bottom plate 1 so as to be bent and erected. Projections 6, 9 for retention of the distance are parallelly arranged with a distance in the front and rear directions, in the bottom plate and the side plates 2, 3 respectively. And further, receiving and supporting projections 7 are provided between respective projections 6, 6 and 9, 9. At least the projections 7 of the bottom plate 1 have a two- step structure of a support and receive face 7a, 7b on which the article B to be packaged are positioned to contact them and a stepped face 7c a little lower than the support and receive face and retaining a space S1 between the article and the face 7c. Stoppers 8 heaved upward from the receive and support face 7a to regulate the article B to be packaged against lateral transfer, are provided at both side ends of the projection 7 of the bottom plate 1 to serve as cushioning and supporting parts against dropping from the edges of the package.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly stores a hard disk built into a personal computer, a drive for inserting a CD-ROM, and other electronic device parts in a packaging box when the packaging is performed. The present invention relates to a packaging support frame that also serves as a partition for supporting and protecting a plurality of objects to be packaged that are separated from the inner wall surface of the packaging box and do not contact each other.

[0002]

2. Description of the Related Art When transporting a hard disk drive, a drive for inserting a CD-ROM or other electronic equipment parts, a plurality of them are supported in a packaging box such as a corrugated cardboard box so as not to come into contact with each other. Be stored.

Conventionally, as the above-mentioned packaging form, for example, as shown in FIG. 9, support pads (101) and (102) made of synthetic resin sheets which are paired with each other are used, and the lower pad (102) is first packed in a packaging box. (100) and set this lower pad (1
02) Set the holding cylinder (103) made of corrugated cardboard on top, and wrap the electronic device parts to be packed in a film bag (not shown) to prevent static electricity
(103) Insert it inside and place it on the receiving convex part (104) of the lower pad (102), and insert a buffering partition (105) made by folding corrugated cardboard between the parts. Further, the upper pad (101) having a symmetrical shape with the lower pad (102) is set on the upper part thereof and packed.

However, in the case of the above-mentioned packaging form, since a relatively large space (S3 ') (S4') is held between the storage portion of the object to be packaged (B ') and the packaging box (100), Although it is possible to exert a satisfactory cushioning and protection effect against the dropping of the package, the above-mentioned void (S
Due to 3 ') (S4'), the package is large, the loading efficiency in cargo handling and transportation is poor, and the transportation cost is high.

In addition, as described above, in the packaging form using the holding cylinder and the partition material in addition to the upper and lower pads, it takes a lot of time to set and store them, which is also a cause of the high packaging cost. Was becoming.

Therefore, as a packaging support frame used for the above packaging, the bottom plate and the both side plates are connected in a bendable manner in order to facilitate the setting work and the storing work of the object to be packed and compact packing. The support frame is used.

For example, as disclosed in Japanese Utility Model Publication No. 3-50057, it has been proposed to use a foldable cushioning material that also serves as a partition when packaging a bottle or the like. Although the cushioning material that also serves as a partition makes packaging and setting work easier when packaging relatively high-strength products such as bottles, due to its structure, it has strength and cushioning properties against falling of the package, especially ridge drop. On the other hand, no consideration has been given to preventing bottoming of the object to be packaged on the inner wall surface of the packaging box, and it is unsuitable as a packaging material for articles such as electronic equipment parts that require particularly high cushioning and safety.

The present invention has been made in view of the above, and a plurality of packages can be packaged without lowering the strength and buffering property against the fall of a package in which a packaging object is stored in a packaging box and packaged, in particular, a ridge drop or the like. The object to be packaged can be compactly supported by being separated from the inner wall surface of the packaging box and in a mutually isolated state, and the packaging work can be performed easily, and the loading efficiency and transportation efficiency can be greatly improved. An object of the present invention is to provide a supporting frame for packaging.

[0009]

A first aspect of the present invention for solving the above-mentioned problems is to form a synthetic resin foam sheet so that the bottom plate and its left and right opposite side edges can be bent and erected via hinge portions. The bottom plate and the both side plates each have side plates that are continuously provided, and each of the bottom plates and the both side plates is provided with a convex portion for holding an interval in parallel with an interval substantially corresponding to the object to be packaged in the hinge extension direction. In a packaging support frame in which convex portions for receiving and supporting are provided between the convex portions, at least the convex portion for receiving and supporting the bottom plate is a supporting surface portion on both sides with which the object to be packaged abuts in a normal supporting state. And a step surface portion having a step slightly lower than the receiving and supporting surface portion and holding a space with the object to be packaged, thereby forming a two-step structure.

According to a second aspect of the present invention, in the same packaging support frame as described above, both side end portions of the convex portion for receiving and supporting of the bottom plate are further above the receiving and supporting surface portions on both sides with which the object to be packaged abuts. A stopper portion is provided which bulges out to regulate the lateral movement of the packaging object placed on the receiving and supporting surface portion, and the stopper portion is provided so as to serve as a cushion and a support against a ridge drop of the package. It is characterized by

[0011]

The above-described packaging support frame of the present invention is in a state in which both side plates are bent and erected with respect to the bottom plate by hinges to face each other when packaging, for example, a box accommodating a hard disk or other electronic device parts. Then, store it in the packaging box and set it. When a plurality of sets of support frame parts are connected to each other by using the bottom plate and the both side plates connected to both side edges thereof so as to be bendable and discriminating as one set of support frame parts, the connected side plates are connected to each other. Bending back to back at the installation boundary part, the supporting frame parts of each set are assembled and configured, and stored and set in the packaging box.

[0012] In this state, the object to be packaged is fitted between the convex portions for holding the gaps of the both side plates facing each other, and is dropped as it is between the convex portions for holding the gaps of the bottom plate so as to receive it. It may be placed on the convex portion.

Each of the stored objects to be packaged is supported at its peripheral edge portion by the convex and concave portions on the bottom plate and the side plates on the bottom plate and both side plates, respectively, and is received between the inner wall surface of the packaging box and the packaging box. It has a space corresponding to the height of the support projections, and is supported by the projections of the bottom plate and both side plates for holding the respective spacings, and is supported in a state in which the required spacing is maintained between the packaging objects. It

If necessary, a top plate which is vertically symmetrical with the bottom plate is attached to the upper part. When the top plate is connected to at least one end side plate, the top plate may be bent and attached, and the upper end of the stored packaging object should be held similarly to the bottom plate. become.

Further, according to the packaging support frame of the first aspect, the convex portions for receiving and supporting the bottom plate have a two-step structure of the receiving and supporting surface portions on both sides and the step surface portion having a step between the receiving and supporting surface portions. Therefore, in handling such as cargo handling and transportation, when the package packed using the packaging support frame as described above falls, the receiving and supporting surface portion of the convex portion of the bottom plate first buckles, so that a good cushioning action is obtained. In addition, when the buckling of the receiving surface portion progresses to a certain extent or more, the step surface portion having a step lower than this acts as the receiving surface of the second step, and the load of the packaging object due to the drop is also applied to the step surface portion. It is possible to receive and support, even if the drop is repeated several times, it is possible to maintain sufficient support strength and prevent the convex portion from buckling and deforming excessively.

According to the second aspect of the present invention, at least both side end portions of the convex portion for receiving and supporting the bottom plate are provided with stopper portions which further bulge from the receiving and supporting surface portion and regulate the lateral movement of the object to be packaged. Therefore, if the package falls along a ridge during cargo handling work or during transportation, the bulging shape stopper part functions as a buffer part for the corner of the object to be packaged, and the side end surface is separated from the sheet part. By forming a continuous slope, the side end face serves as a diagonal support, and it is possible to prevent bottoming of the corner of the package.

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a support frame (A) for packaging according to the present invention, which is integrally molded from a synthetic resin foam sheet having appropriate rigidity and elasticity and having a relatively high elasticity, and FIG. The one set of support frame parts of the support frame (A) for packaging is expanded and shown. 3 and 4 are enlarged cross-sectional views taken along line XX and YY of the previous figure, respectively.

The support frame for packaging (A) is opposed to the left and right sides of the bottom plate (1) and the left and right sides of the bottom plate (1). Both side plates (2) and (3) are provided, and these and the top plate (4) form a set of support frame portions (10).

In the case of the embodiment shown in the figure, two side plates (2) and (3) are bent back to back via hinge parts (51) and (51) at a very narrow connecting part (5) in the central part. Side plates (3) and (2), which are connected as much as possible and are opposed to the bottom plates (1) and (1) and the side plates (2) and (3), respectively, are connected to the side plates (2) and (3) at the hinge portion (21). ) (31) so that they can be sequentially bent, and two sets of support frame parts (10) (1
0) are integrally connected.

Further, top plates (4) and (4) which are vertically symmetrical with respect to the bottom plate (1) are provided at the upper edges of the side plates (2) and (3) outside the two sets of the support frame portions (10). Each hinge part (4
1) It is connected so as to be bendable via (41). This top plate (4) (4) is a bottom plate (1) and both side plates (2).
Although it can be configured separately from the main body portion composed of (3), it is desirable to integrally connect the components as described above in terms of the number of parts, ease of handling and management. Two
It is also possible to integrally form a set of top plates (4) and (4) and connect them to one of the side plates (2) or (3).

The bottom plate (1) has hinge portions (21) (3).
1) In the extending direction, that is, the front-rear direction, for keeping the interval, which is formed by bulging while leaving the peripheral portion of the material sheet at an interval substantially corresponding to the thickness of the packaging object (B) such as electronic device parts. The convex portions (6) are arranged side by side. Each convex portion (6) is
Although it may be continuous in the left-right direction, in the case of the figure, the non-bulging portion (1b) is left in the center portion in the left-right width direction and the two convex portions having a mountain shape are formed in the left-right portion. (6) is formed. (1a) shows a peripheral sheet portion.

Between the convex portions (6) (6) adjacent to the front and rear, the convex portions (7) for receiving and receiving the object to be packaged (B) to be inserted are the convex portions (6). Sheet part (1a) continuously
The bulge is formed.

The receiving convex portion (7) is provided with supporting surface portions (7a) (7a) (7b) for receiving the object to be packaged (B) on both sides in the left-right direction and the central portion. In the meantime, a step surface portion (7c) having a step lower than the receiving and supporting surface portions (7a) and (7b) and holding a space (S1) between the lower surface of the object to be packaged (B) is provided. . In the case of the figure,
The bearing surface portion (7b) at the center is replaced with the bearing surface portions (7a) at both sides.
It is formed slightly lower (for example, 1 to 3 mm) than (7a), and normally, the supporting objects (7a) (7a) on both sides support the object to be packaged (B) and the load due to the dropping action, etc. Due to the increase in the number, the bearing can be supported at three places including the bearing surface portion (7b) at the central portion.

At both side ends of the receiving convex portion (7), stopper portions (which bulge further upward from the receiving surface portions (7a) (7a) and restrict lateral movement of the object to be packaged (B) ( 8) is provided, and further, the side end surface forms an inclined surface continuous from the seat portion (1a). As a result, the cushioning property at the time of falling of the ridge of the package is enhanced, and the side end face serves as an oblique support, so that the bottom of the corner of the object to be packaged (B) against the inner wall surface of the packaging box can be prevented. Has become.

Further, the side plates (2) and (3) are left with their peripheral portions in the same row as the convex portions (6) for maintaining the spacing and the convex portions (7) for receiving and supporting the bottom plate (1), respectively. And the protruding convex portions (9) (9) for bulging are provided in parallel,
Between each convex part (9) (9), the convex part (11) (11) for receiving and receiving the side surface of the packaging target object (B) is continuous with the convex part (9). It is formed to bulge.

Projections (1) for receiving and supporting the side plates (2) (3)
Regarding 1) as well, like the projecting portion (7) for receiving and supporting the bottom plate (1), the left and right end portions thereof, that is, the upper and lower end portions at the time of bending and standing, and the central portion in the normal supporting state, respectively, are packaged objects. (B) receiving and receiving surface part (11a) (11a) (11
b) is provided, and a two-step structure is formed between the step surface portion (11c) having a step lower than the above-mentioned support surface portion in order to provide cushioning properties and to maintain the bearing strength at the time of side drop. Are particularly preferred. Further, the central receiving surface (11b) of the receiving convex portion (11) may be formed slightly lower than the receiving surface portions (11a) at both ends.

The lower ends of the convex portions (9) of the side plates (2) and (3) and the side ends of the convex portions (6) of the bottom plate (1) are the side plates (2) and (3). When the height is set so as to elastically contact each other in the bent upright state, the shape retention in the upright state and in the state inserted into the packaging box is further improved.

The top plate (4) is formed so as to be vertically symmetrical with the bottom plate (1) during assembly, that is, in the unfolded state, has exactly the same shape as the bottom plate (1). A space-holding convex portion (16) and a space-receiving convex portion (17) corresponding to the space-holding convex portion (6) and the space-receiving convex portion (7) are provided in the same row and at the same distance. Has been.

The hinge portions (21), (31), (41) and (51) in the above embodiment are usually
Each convex portion (7) (11) (17) or convex portion (6) (9) (16) that is performed at the same time as trimming from the material sheet
Is formed by heating and pressing the portion in a V-groove shape at the time of molding, and the bending angle, that is, the opening angle of the V-groove shape may be set to be about 90 ° or less. .

In the packaging support frame (A) of the above embodiment, 2
Although the case where the supporting frame portions (10) (10) of the set are connected to each other is shown, it is also possible to configure only one supporting frame portion.
It is also possible to connect three or more sets of supporting frame portions.

As the synthetic resin foamed sheet which is the above-mentioned constituent material, a polyester resin foamed sheet is particularly preferable because it has appropriate rigidity and elasticity and is tough and can retain sufficient hinge strength. Used.

The polyester resin is a high molecular weight chain polyester obtained by reacting an aromatic dicarboxylic acid with a dihydric alcohol. Among them, polyethylene terephthalate, from the viewpoint of mechanical properties such as heat resistance and economical efficiency, Those containing polybutylene terephthalate as a main component are preferably used. This polyester resin is crystalline, and the higher the crystallinity, the better the mechanical properties such as heat resistance. Therefore, the crystallinity is 15% or more, preferably 2
It is better to be 0% or more.

In addition, polystyrene resin, polyolefin resin such as polypropylene and polyethylene, polyvinyl chloride resin, and other synthetic resin foamed sheets having appropriate rigidity and elasticity and being relatively elastic can be used. A foamed sheet obtained by laminating a non-foamed resin on the foamed sheet to have hinge strength can be preferably used. It is also possible to use a foamed sheet in which a relatively hard foamed sheet and a relatively flexible foamed sheet are laminated.

The thickness of the foamed sheet varies depending on the material used, but in the case of a polyester resin foamed sheet, it is 0.5 to 8.0 mm, preferably 1.0 to 3.0 m.
It is about m and the expansion ratio is preferably about 5 to 50 times. If the thickness is smaller than the above, sufficient bearing strength cannot be obtained, and if the thickness is larger than the above,
Molding from a sheet becomes difficult and bulky. If the expansion ratio is smaller than the above range, the buffering property will be poor, and the amount of resin used will be large, and if the expansion ratio is larger than the above range, there will be a problem in strength. Of course, other than the above, it is also possible to use depending on the type of material to be packaged and the material used.

The packaging support frame (A) of the above-described embodiment of the present invention can be made bulky by stacking a large number of sheets in a developed state before handling before use. Then, for example, an electronic device component such as a hard disk drive or a drive for inserting a CD-ROM, and other packaging objects (B) are assembled and used when they are packaged in a packaging box (C) such as a corrugated cardboard box. To do.

In this use, the central hinge part (51)
At (51), the adjacent side plates (2) and (3) of the two sets of support frame portions (10) and (10) are bent back to back, and
Both side plates (2) and (3) of each set are bent at a substantially right angle to the bottom plate (1) and are erected so as to face each other, and then assembled as shown in FIG. In this state, it is set in the packaging box (C) as shown in FIG.

Then, the object to be packaged (B) is provided with convex portions (9) and (9) for holding the respective intervals between the opposite side plates (2) and (3).
It suffices to fit it in the space, drop it between the convex portions (6) (6) for maintaining the gap of the bottom plate (1) as it is, and place it on the convex portion (7) for receiving and supporting. Further, a top plate (4) which is vertically symmetrical with the bottom plate (1) is attached to the upper part, and the packaging box (C) is packed.

As a result, a plurality of objects to be packaged (B)
Has a bottom plate (1), both side plates (2) (3) and a top plate (4) at its lower end, both side ends and further upper end, respectively.
By the projections (7), (11) and (17) for receiving and receiving, the space (S3) between the inner surface of the packaging box (C) and the projections.
In addition to being supported so as to hold, the convex portions (6), (9) and (16) for holding the respective intervals hold a constant interval (S2) and hold them without contacting each other.

Therefore, unlike the conventional packaging form shown in FIG. 9, there is no need for an inner holding cylinder made of corrugated board or a partitioning material such as corrugated board that acts as a spacer between articles, and a packaging support frame ( The setting work of A) and the storing work of the object to be packaged (B) can be easily performed, and the object to be packaged can be stably held in the isolated state at the peripheral portion thereof.

In the above supporting state, the receiving surface portion (7) at the center of the receiving convex portion (7) of the bottom plate (1).
Since b) is slightly lower than the receiving surface portions (7a) on both sides, the object to be packaged (B) has the receiving surface portions (7) on both sides.
If the bearing surface (7a) is slightly elastically deformed or buckled due to falling of the package, etc., it is supported only by a), and at three locations including the central bearing surface (7b). It can be supported and can perform a sufficient supporting action.

Moreover, at least the receiving projections (7) of the bottom plate (1) form a space (S1) between the receiving surface portions (7a) on both sides and the object to be packaged (B) lower than this. Since it has a two-step structure with the step surface portion (7c) that it holds, when the package falls during handling such as transportation, the receiving surface portion (7a) of the convex portion (7) of the bottom plate (1) and further ( 7b) first exerts a good cushioning effect by elastic deformation or buckling deformation, and when the buckling deformation of the bearing surface portions (7a) (7b) progresses to a certain extent or more, a step having a step is formed. The surface portion (7c) acts as a second stage receiving surface,
The load of the packaging object (B) due to the drop is applied to the stepped portion (7c).
However, it can be received and supported, and even if the drop is repeated several times, it maintains sufficient bearing strength and exhibits a good cushioning effect.

Further, stopper portions (8) for restricting the lateral movement of the object to be packaged are further bulged from the support surface portion (7a) at both end portions of the support projections (7) of the bottom plate (1). Therefore, if the package falls along a ridge during cargo handling work or transportation (FIG. 8), the bulged stopper portion (8) cushions the corner of the packaging target (B). And the side end face forms an inclined surface continuous from the sheet portion (1a), the side end face serves as an oblique support, and the corner portion of the packaging target (B) bottoms out. Can be prevented. This, in combination with the supporting action of the two-step structure of the receiving and projecting convex portion (7), further improves the cushioning property and safety.

Therefore, a sufficient cushioning and supporting action can be achieved without making the height of the receiving projections (7), (11) and (17) for receiving the object to be packaged (B) so large. Therefore, the space (S3) (S4) between the object to be packaged (B) and the inner wall surface of the packaging box (C) can be made smaller than before, without lowering the bearing strength and buffering property.
It can be packaged more compactly than before.

For example, a hard disk is used as a packaging object, and the packaging support frame (A) of the present invention made of a polyester-based resin foam sheet is used and stored in a corrugated cardboard box and packaged (length 305 mm × width). 265 mm x height 1
85 mm) and a package packaged by the conventional packaging method of FIG. 9 (length 310 mm × width 310 mm × height 225 mm)
The impact value measurement (the impact value (G) applied to the hard disk was measured by the drop test for each of the above.
In addition, the test method was based on JIS Z0200, and the drop height was 80 cm, and the test piece was free fall on six sides after falling on one ridge and three edges.

As a result of this test, there is almost no difference in the impact value (G) between the two, and by using the packaging support frame (A) of the present invention, it is possible to compare with the storage portion of the packaged object (B). Even if the space (S3) (S4) between the inner wall surface of the packaging box (C) and the inner wall surface is small, a buffer protection effect comparable to the conventional one can be exhibited. That is, it was possible to reduce the volume by about 30% and package it compactly without reducing the buffer protection effect.

Therefore, in the cargo handling work using pallets, for example, in the case of the conventional method, 3 × 3 × on one pallet.
If only 4 pieces (36 pieces) can be loaded, if the packaging body uses the packaging support frame (A) of the present invention, 3 × 4 × 5
It becomes possible to load about 60 (60) pieces, and the loading efficiency and transportation efficiency can be greatly improved.

Particularly, in the case where a plurality of sets of supporting frame portions are connected to each other as in the illustrated embodiment, the objects to be packaged can be easily and efficiently stored in a plurality of rows without contacting each other. The packaging efficiency and transportation efficiency can be further improved. Also, if the top plate that is symmetrical with the bottom plate is configured to be connected, packaging work will become easier and
Even when the top and bottom of the package are reversed and fall, the same cushioning effect as described above is obtained.

The packaging support frame (A) of the present invention is not limited to electronic device parts such as a drive for inserting a hard disk or a CD-ROM as described above, but various other articles requiring cushioning properties. Can be used for collective packaging.

[0050]

As described above, according to the supporting frame for packaging of the present invention, it can be assembled by folding operation and can be easily set in the packaging box, and the object to be packaged can be used for holding the space between the opposite side plates. Just by fitting and dropping it between the convex parts, the convex part for maintaining the space and the convex part for receiving and receiving can securely hold it at the peripheral edge part, and separate it from the inner wall surface of the packaging box and between the articles. It can be stably supported in a state where there is a gap, and packaging work can be performed easily.

Particularly, in the case of claim 1, since the convex portion for receiving and supporting the bottom plate has the two-step structure of the receiving surface portion and the stepped surface portion, the package can be dropped once or several times. On the other hand, when the bearing surface portion is buckled and deformed, the cushioning effect is excellent, and when the buckling deformation of the bearing surface portion progresses, the step surface portion acts as the second bearing surface and the convex portion is formed. As a whole, it can receive the object to be packaged, has sufficient bearing strength, can prevent bottoming of the object to be packaged, and can maintain good cushioning property.

Further, when the stoppers for restricting the lateral movement of the object to be packaged are provided at the both side ends of the receiving and supporting projection as in claim 2, the stoppers absorb the ridge drop of the package. It also serves as a support, and can prevent the corners of the packaged object from bottoming due to falling edges. Therefore, it can be suitably used especially for packaging electronic device parts that require cushioning and safety.

In addition, since a sufficient cushioning protection effect can be exerted as described above, the convex portion for receiving and supporting the object to be packaged is lowered, and the space between the stored object to be packaged and the inner surface of the packaging box is reduced. Can be set to be small, and the package can be made compact accordingly. Consequently, the loading efficiency in packaging and transportation of this kind of article can be improved, and the transportation cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a pair of support frame portions of the above.

FIG. 3 is an enlarged sectional view taken along line XX of the above.

FIG. 4 is an enlarged cross-sectional view taken along line YY of the above.

FIG. 5 is a perspective view showing a state in which a packaging support frame is assembled.

FIG. 6 is a cross-sectional view showing a storage state of the above-mentioned article to be packaged.

FIG. 7 is a cross-sectional view taken along the line ZZ of the previous figure in a packaged state.

FIG. 8 is a partial enlarged cross-sectional view showing a ridge falling state.

FIG. 9 is a cross-sectional view illustrating a conventional packaging form.

[Explanation of symbols]

 (A) Support frame for packaging of the present invention (1) Bottom plate (2) (3) Both side plates (4) Top plate (5) Connecting part (6) (9) (16) Space-holding convex part (7) ) (11) (17) Convex part for receiving and supporting (7a) Supporting surface parts on both sides (7b) Central supporting surface part (7c) Step surface part (8) Stopper part (10) One set of support frame part ( S1) Space (S2) Interval (S3) (S4) Void (B) Object to be packaged (C) Packaging box

Claims (2)

[Claims] 1. A synthetic resin foamed sheet, which has a bottom plate and side plates which are connected to opposite left and right side edges of the bottom plate so as to be bent and erected via hinge portions.
Along with the convex portions for maintaining the interval are arranged in parallel at intervals substantially corresponding to the object to be packaged in the hinge portion extending direction,
A supporting frame for packaging comprising convex portions for receiving and supporting provided between the respective convex portions, wherein at least the convex portion for receiving and supporting the bottom plate is provided on both side portions with which the object to be packaged abuts in a normal supporting state. A support frame for packaging, which has a two-stage structure including a support surface portion and a step portion having a step slightly lower than the support surface portion and having a space between the support target and the object to be packaged. 2. A synthetic resin foamed sheet, which has a bottom plate and side plates which are connected to both left and right opposite side edges of the bottom plate so as to be bent and erected via hinge portions.
Along with the convex portions for holding the intervals are arranged in parallel at intervals substantially corresponding to the object to be wrapped in the hinge portion extending direction, respectively,
A support frame for packaging comprising convex portions for receiving and supporting provided between the respective convex portions, wherein both end portions of the convex and convex portions for receiving and supporting of the bottom plate are provided on both sides with which the object to be packaged abuts. A stopper portion is provided which bulges further upward from the supporting surface portion and regulates the lateral movement of the object to be packaged placed on the receiving and supporting surface portion, and the stopper portion serves as a buffer and a support against the edge fall of the package. A support frame for packaging, characterized in that it is provided as follows.