JP6396262B2 - Foam cover for drums - Google Patents

Description

  The present invention relates to a foam cover for a drum can for protecting the top of the drum can from rainwater, dust and the like.

  Conventionally, drums have been widely used for storing and transporting liquids such as chemicals and liquid fuel. In general, when the drum can is stored outdoors, foreign matter such as dirt, dust, or rainwater tends to accumulate on the top plate of the drum can. As a result, as shown in FIG. Rust is generated and deteriorates, and foreign substances are easily mixed when the contents are taken out.

  For this reason, as shown in FIG. 4B, the top of the drum can 10 may be covered with a drum can cover (drum can cap) 11 made of plastic resin such as polyethylene. The drum can cover 11 has, for example, a bottomed cylindrical shape having a rising edge 11b on the periphery of the cover 11a of the circular flat surface portion.

  Also, a drum can cap that is light in weight and easily adjusts the fitting force with the drum can top is disclosed (for example, see Patent Document 1). Furthermore, a drum can cover is also disclosed that covers the top surface of a drum can stacked in a standing manner on a pallet without being blown by wind or the like, and can protect the top surface of the drum can from wind and rain (see, for example, Patent Document 2).

JP 2006-69657 A JP 2010-132330 A

  However, almost all drum covers currently in use are made of plastic. This plastic drum can cover is thin and easily distorted, and when it is attached to the top of the drum can, there is a problem that rainwater, dust and the like are likely to accumulate in the distorted portion.

  In addition, although the conventional plastic drum can cover is relatively lightweight, it is relatively heavy and has poor workability, and the fitting with the top of the drum can becomes strong, requiring labor for attachment and removal. For this reason, further weight reduction of the cover for drum cans is desired.

  Furthermore, if a rigid plastic cover for a drum can is used, a large amount of material such as a plus chip resin is used, resulting in a high manufacturing cost. As a result, the cover for a drum can is expensive (for example, 1500 yen per sheet). Above). For this reason, further cost reduction of the drum can cover is also desired.

  The present invention has been made in view of the above-mentioned problems, and is a completely new type that has not been heretofore known. It is difficult to collect rainwater, dust, etc., has excellent workability, and can achieve further cost reduction. An object is to provide a foam cover for a drum can.

In order to solve the above-mentioned problems, the present invention has a circular planar shape having a predetermined thickness so as to cover the top of the drum can, and has a plurality of cutout surfaces cut out in the vertical direction on the peripheral side. The cover portion is molded from foamed synthetic resin , and is fitted with the periphery of the top portion of the drum can. Therefore, a plurality of the cover portions are erected on one side from the periphery of the cover portion excluding the notch surface. A foam cover for a drum can , further comprising a standing surface .

  In this foam cover for drums, four of the cut-out surfaces are arranged at equal intervals along the circumferential direction of the cover portion, and the cut-out surfaces facing each other are planes parallel to each other. The planes are preferably planes that are orthogonal to each other.

  In this drum can foam cover, when the drum can foam cover is fitted to the top of the drum can placed so that the outer periphery of the top is in contact, the notched surface of the adjacent drum can foam cover is contacted. It is preferable to contact.

  In the foam cover for a drum can, it is preferable that a convex strip extending inward along the circumferential direction is formed on the inner side surface of the standing surface.

  In the foam cover for a drum can, it is preferable that the cover portion is formed with an inclined portion inclined downward from the center point toward the peripheral side.

  In the foam cover for a drum can, it is preferable that a cylindrical weight receiving portion is formed in the cover portion at a central position on the lower surface side.

  In the foam cover for a drum can, it is preferable that a plurality of reinforcing ribs having convex step portions are formed on the upper surface of the cover portion.

  In this foam cover for a drum can, each of the plurality of reinforcing ribs has an inner stepped portion and an outer stepped portion that are parallel to the circumference of the cover portion, and at least a part of the peripheral portion of the cover portion is at least a part of the edge. It is preferable that an extension portion further extending toward the peripheral side is formed on a part of the outer step portion of the reinforcing rib.

  Moreover, it is preferable that this foam cover for drums is colored using a color raw material.

  The foam cover for drums according to the present invention is formed of a foamed synthetic resin. Further, in order to cover the top of the drum can, a circular flat shape having a predetermined thickness and having a plurality of cutout surfaces cut out in the vertical direction on the peripheral side thereof, and the top of the drum can In order to fit with the peripheral edge, a plurality of standing surfaces are provided which are erected on one side from the peripheral edge of the cover part excluding the notch surface. With this configuration, the present invention is a new type that has never been obtained before, and it becomes a foam cover for a drum can that is unlikely to collect rainwater, dust, and the like, has excellent workability, and can achieve further cost reduction.

(A) The perspective view of the upper surface of the foam cover for drums which concerns on embodiment of this invention, (b) The perspective view of the lower surface of the foam cover for drums same as the above. (A) Front view of the foam cover for the drum can with the top and bottom reversed, (b) Top view of the foam cover for the drum can, (c) Left side view of the foam cover for the drum can, (d) Foam cover for the drum can (E) AA line sectional view of a foam cover for drum cans, (f) It is a BB line sectional view of a foam cover for drums same as the above. (A) It is a perspective view of the set of four drum cans using the foam cover for drums same as the above, (b) It is a top view of the set of drums same as the above. (A) The photograph figure which shows the use condition of the conventional drum can outdoors, (b) The photograph figure which shows the use condition of the cover for conventional drum cans.

  A drum can foam cover according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a foam cover 1 for a drum can molded from a foamed synthetic resin, and the foam cover 1 for a drum can is used for the purpose of protecting the top of the drum can.

  First, features of the foam cover 1 for drum cans will be described with reference to FIGS. 1 and 2. The foam cover 1 for a drum can has a shape that can cover the top of the drum can, and is molded from a foamed synthetic resin. Here, the foamed synthetic resin is, for example, a polyolefin-based resin such as polystyrene, polyethylene, or polypropylene, and the foam cover 1 for the drum can according to the present embodiment is molded by, for example, an EPS (expanded polystyrene) panel.

  The drum can foam cover 1 includes a cover portion 2 and an upright surface 3 as shown in FIGS. The cover portion 2 is a circular flat surface having a predetermined thickness (for example, 12.4 mm) so as to cover the top of the drum can, and a plurality of (in the present embodiment, notched in the vertical direction) Four) notch surfaces 2a are formed, and these notch surfaces 2a are arranged at equal intervals along the circumferential direction. A plurality of standing surfaces 3 are erected on the one side from the periphery of the cover portion 2 excluding the notch surface 2a (four in the present embodiment) in order to fit with the top periphery of the drum can. Here, the wall thickness of the standing surface 3 is 12 mm, for example.

  In the present embodiment, there are four notch surfaces 2a. As shown in FIG. 2, the facing notch surfaces 2a are parallel to each other, and the adjacent notch surfaces 2a are orthogonal to each other. The plane is formed. That is, an angle formed by a perpendicular line from the center point of the cover part 2 to the one notch surface 2a and a perpendicular line from the center point of the cover part 2 to the adjacent notch surface 2a is 90 ° in a top view. . With the configuration of the cut-out surface 2a, the top of the drum can placed so that the outer periphery is in contact can be easily covered with the foam cover 1 for the drum can.

  As shown in FIGS. 1B and 2D, the inner surface of the standing surface 3 of the foam cover 1 for drum cans has a reverse taper shape protruding inward along the circumferential direction thereof. Article 3a is formed. The ridges 3a are provided so that the drum can foam cover 1 is fitted to the top periphery of the drum can with an appropriate fitting force.

  As shown in FIGS. 2E and 2F, the cover portion 2 is formed with an inclined portion 2b inclined downward from the center point toward the peripheral side. The inclination angle of the inclined portion 2b is, for example, 2 °. By providing the inclined portion 2b, it is possible to appropriately prevent rainwater, dust and the like from accumulating on the upper surface of the foam cover 1 for drums.

  As shown in FIGS. 1B and 2D, the cover portion 2 is formed with a cylindrical weight receiving portion 2 c at the center position on the lower surface side. The weight receiving portion 2c has a height of, for example, 20 mm. By providing the weight receiving portion 2c, the cover portion 2 can be moved downward even when a heavy object (for example, a pallet) is placed on the foam cover 1 for the drum can. It is possible to appropriately prevent bending and cracking.

  As shown in FIGS. 1 (a) and 2 (b), the cover portion 2 is provided with reinforcing ribs 2d having a plurality of convex step portions on the upper surface thereof, thereby increasing the strength of the foam cover 1 for drum cans. It is reinforced. The height of the step portion of the reinforcing rib 2d is, for example, 4.2 mm. Each reinforcing rib 2d has an inner stepped portion 2da and an outer stepped portion 2db that are parallel along the circumferential direction of the cover portion 2, and the outer side of at least a part of the reinforcing rib 2d on the most peripheral side of the cover portion 2 In a part of the stepped portion 2db, an extending portion 2e extending further toward the peripheral edge side is formed. By providing this extending part 2e, even when a large number of drum can foam covers 1 are stacked in the vertical direction and transported, it is possible to appropriately prevent the drum can foam covers 1 located above and below from being displaced.

  Next, a specific example of installation of the foam cover 1 for drums according to the present embodiment on a drum can will be described with reference to FIG.

  In general, the drum 4 has a basic structure in which a disk member (top plate and bottom plate) is connected and closed on the upper end side and the lower end side of a cylindrical body 4a as shown in FIG. However, the size is standardized by the JIS standard. The body 4a is formed with a plurality of ribs 4b for increasing the strength of the drum. The drum can to which the foam cover 1 for drum can is attached is, for example, a drum can called a closed type (closed drum can). The closed drum can is provided with a main base for taking out the contents and a small base for facilitating air flow to the internal space when taking out the contents.

  In the work place, as shown in FIG. 3A, the drum cans 4 are gripped two by two using a drum clicker (conveyance machine) and placed on the pallet 5, and the outer periphery of the top is placed on the pallet 5. The four drum cans 4 are placed so as to be in contact with each other, and a set of the upper drum cans 4 is placed on the set of the lower drum cans 4 using the pallet 5 so as to have two layers in the vertical direction.

  At this time, as shown in FIG. 3B, when the drum can foam cover 1 is fitted to the top of the drum can 4 placed so that the outer periphery of the top is in contact, the adjacent foam can cover 1 for the drum can. The notch surface 2a contacts. Therefore, the drum can foam cover 1 for the adjacent drum can 4 does not get in the way when the foam cover 1 for drum can is attached to or removed from the top of the drum can 4. As a result, it is not necessary to move the heavy drum can 4 itself when attaching / removing the foam cover 1 for the drum can, and since the foam cover 1 for the drum can is made of foamed polystyrene, it is lightweight and very easy to work. Workability can be greatly improved.

  As described above, the foam cover 1 for a drum can according to the present embodiment has a shape that can cover the top of the drum can and is formed from a foamed synthetic resin. The drum can foam cover 1 is a circular flat shape having a predetermined thickness so as to cover the top of the drum can, and has a cover portion having four cutout surfaces 2a cut out in the vertical direction on the peripheral side thereof. 2 and a plurality of standing surfaces 3 erected on one side from the periphery of the cover portion 2 excluding the notch surface 2a in order to fit with the top periphery of the drum can.

  With this configuration, the foam cover 1 for drum cans is a completely new type that is not made of conventional plastic.

  And since the foam cover 1 for drum cans is provided with the inclined part 2b in the cover part 2, it is hard to collect rainwater, dust, etc., and can prevent appropriately that rust arises in the top plate of a drum can. The drum can foam cover 1 once attached to the top of the drum can is fitted to the periphery of the top of the drum with an appropriate fitting force by the ridges 3 a provided on the standing surface 3. In addition, since the reinforcing rib 2d and the extending portion 2e are formed in the cover portion 2, the strength of the drum can foam cover 1 is maintained, and even if the drum can foam covers 1 are stacked and transported, the upper and lower drum cans can be used. The foam cover 1 is not displaced.

  Moreover, since the foam cover 1 for drum cans is molded with foamed synthetic resin, it is very lightweight and has excellent workability. Further, since the cut-out surface 2a is formed in the cover portion 2, it is very easy to attach / remove the drum can foam cover 1 to / from the top of the drum can.

  Furthermore, since the foam cover 1 for drum cans is molded from foamed synthetic resin, the cost is about half that of the conventional plastic one, and further reduction in the price of the foam cover 1 for drum cans can be realized.

  Furthermore, the foam cover 1 for drum cans is molded from foamed synthetic resin, but has a durability of more than one year even if stored outdoors, and is one-way (one way) with drum cans that are exported overseas. Can be used and discarded.

(Modification)
A modification of the present embodiment will be described. In this modification (not shown), the foam cover 1 for drum cans is colored using a color raw material in a manufacturing stage. For this coloring, for example, colors such as green, pink, purple, beige, orange, blue, and yellow can be used. In this way, the above-described embodiment can achieve the same operational effects, and depending on the color of the foam cover 1 for the drum can, for example, the type of liquid stored in the drum can, whether it is a dangerous substance, The sorting destination can be discriminated, and the workability in storing and transporting the drum can can be improved. At the same time, various kinds of identification information can be displayed by performing ink jet character printing (black, green, blue, red) on the surface of the foam cover 1 for the drum can.

  The present invention is not limited to the configuration of the embodiment described above, and various modifications can be made without departing from the spirit of the invention. Moreover, although the example which applies the foam cover 1 for drum cans to a closed drum can was demonstrated in the said embodiment, it cannot be overemphasized that it can apply also to a canopy detachable open drum can.

DESCRIPTION OF SYMBOLS 1 Foam cover for drums 2 Cover part 2a Notch surface 2b Inclined part 2c Load receiving part 2d Reinforcement rib 2da Inner step part 2db Outer step part 2e Extension part 3 Standing surface 3a Projection 4 Drum can 5 Pallet

Claims (9)

In order to cover the top of the drum can, it has a circular flat shape having a predetermined thickness, and includes a cover portion having a plurality of cutout surfaces cut out in the vertical direction on the peripheral side thereof,
The cover part is molded from a foamed synthetic resin ,
A foam cover for a drum can, further comprising a plurality of standing surfaces erected on one side from the periphery of the cover portion excluding the cut-out surface so as to be fitted to the periphery of the top portion of the drum can. Four of the cutout surfaces are arranged at equal intervals along the circumferential direction of the cover portion, the cutout surfaces facing each other are parallel planes, and the adjacent cutout surfaces are orthogonal to each other. The foam cover for a drum can according to claim 1, wherein the foam cover is a flat surface . When the foam cover for a drum can is fitted to the top of a drum can placed so that the outer periphery of the top is in contact, the notched surfaces of the adjacent foam covers for the drum can come into contact with each other. The foam cover for drums according to claim 2. 4. The drum for a drum according to claim 1, wherein a ridge that protrudes inward along the circumferential direction is formed on an inner surface of the standing surface . 5. Foam cover. 5. The foam cover for a drum can according to claim 1, wherein the cover portion is formed with an inclined portion that is inclined downward from the center point toward the peripheral edge . 6. The foam cover for a drum can according to claim 1, wherein a cylindrical weight receiving portion is formed at a center position on a lower surface side of the cover portion . The foam cover for a drum can according to any one of claims 1 to 6 , wherein a plurality of reinforcing ribs having convex step portions are formed on the upper surface of the cover portion . Each of the plurality of reinforcing ribs has an inner step portion and an outer step portion that are parallel to the circumference of the cover portion,
An extension portion that extends further toward the peripheral edge side is formed in a part of the outer stepped portion of at least a part of the reinforcing rib on the peripheral edge side of the cover portion. The foam cover for drums according to claim 7 . The foam cover for a drum can according to any one of claims 1 to 8 , wherein the foam cover for the drum can is colored using a color raw material .