JP2670741C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber drum. 2. Description of the Related Art As a fiber drum, a fiber drum as shown in FIG. 8 and disclosed in Japanese Utility Model Publication No. 34-6990 is generally used. The fiber drum 100 includes a drum main body 200, a lid 300, and a tightening band 400. The drum body 200 has a bottom plate 500 integrally and an engagement recess 210 near the upper opening. The lid 300 has a peripheral portion 301 received by the opening edge of the drum main body 200, and closes the opening of the drum main body 200. The tightening ring 400 includes bent portions 401 and 402 that are bent inwardly.
03 has a ring shape having a substantially U-shaped cross section provided along both side edges thereof, and has a band body 404 in which a part of the ring is cut, and is reduced in diameter by being tightened by tightening means (not shown). The one bent portion 401 is engaged with the engaging recess 2 of the drum body.
10 and the other bent portion 402 forms a peripheral portion 301 of the lid 300.
And the lid 300 can be fixed to the drum main body 200. By the way, in recent years, recycling of resources has been called out from the viewpoint of environmental protection. However, there is a problem that recycling is difficult in the conventional fiber drum 100 as described above. That is, in the case of the conventional fiber drum 100, the drum body 200 is
As shown by a dashed line, a bottom plate (base plate) made of paper or plywood is provided on one side of the paper cylinder 201.
202 is fitted, and an iron plate (or a synthetic resin plate) 203 serving as a lower reinforcing material is wound around the lower opening of the paper cylinder 201 from the outside to form a tube, or an iron plate (or a composite 8 by crimping the projecting portion 204 of the iron plate (or synthetic resin plate) 203 inward as shown by a solid line in FIG. 201 and the bottom plate 202 are integrated. As shown by a dashed line in FIG. 10, an iron plate (or synthetic resin plate) 203 serving as an upper reinforcing material is wound around the upper opening of the paper cylinder 201 from the outside to form a cylinder, or The shaped iron plate (or synthetic resin plate) 203 is fitted. Then, as shown by a solid line in FIG. 10, the protruding portion 204 of the iron plate (or synthetic resin plate) 203 is crimped inward, so that the iron plate (or synthetic resin plate) 203 reinforces the vicinity of the upper opening of the paper cylinder 201. And an engagement recess 210 is formed. That is, since the iron plate (or synthetic resin plate) 203 as a reinforcing material, the paper cylinder 201, and the bottom plate 202 are integrated by caulking, when each material of the used fiber drum is to be recycled and used, Paper cylinder 201 and bottom plate 2
02 and the iron plate 203 as a reinforcing material must be separated, but it is very difficult to disassemble. Therefore, at present, used fiber drums are discarded after being incinerated and residual iron is discarded. SUMMARY OF THE INVENTION In view of such circumstances, an object of the present invention is to provide a fiber drum in which different material portions can be easily separated and separated and collected easily. [0008] In order to achieve the above object, a fiber drum according to the present invention has a paper cylinder serving as a fiber drum main body and a bottom side facing the inside of the paper cylinder. A bottomed cylindrical lid body that fits into the opening end of the paper cylinder and closes the opening, and extends from the upper edge of the lid body and engages with the opening edge of the paper cylinder when the lid body is fitted to the paper cylinder. A pair of upper and lower lids having a flange portion to be formed and a bent portion bent inward along both side edges of the plate-shaped ring portion have a substantially U-shaped cross section and a part of the ring is cut. Has a band body,
The band body is reduced in diameter by the fastening by the fastening means that can be loosened, and the tip of one of the bent portions clamps the vicinity of the opening end of the paper cylinder with the lid body fitted to the paper cylinder. And a pair of upper and lower fastening bands for securing the lid to the paper cylinder by locking the flange of the lid to the other bent portion. The bottom cover of the upper and lower covers has a configuration in which a wall surface corresponding to one bent end of the band body of the cover body is recessed toward the inside of the cylinder. In the above configuration, the lid and the tightening band are formed of metal or synthetic resin. Further, it is preferable that the tightening band includes an engaging claw that is engaged with a concave portion of a lid of another fiber drum stacked upward or downward when a plurality of fiber drums are stacked. The engaging claw may be provided over the entire circumference along the inner peripheral surface of the concave portion,
It may be provided intermittently. According to the fiber drum of the present invention, the diameter of the tightening band can be increased by releasing the tightening means. Accordingly, the paper tube is not pinched by the one bent portion of the tightening band and the wall surface of the lid body, and the lid can be separated from the paper tube. That is, the paper cylinder and the lid or the tightening band made of iron or synthetic resin can be easily separated, and separated collection can be performed. Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. FIG. 1 shows an embodiment of a fiber drum according to the present invention. As shown in FIG. 1, the fiber drum 1 includes a cylindrical paper cylinder 2, an upper cover 3, a bottom cover 4, a first tightening band (hereinafter, referred to as “first band”) 5, and a second tightening band 5. Attached band (hereinafter, referred to as “second band”) 6. The upper lid 3 and the bottom lid 4 are formed by pressing an iron plate, and include lid main bodies 31 and 41 and flanges 34 and 44 as shown in FIGS. The lid bodies 31 and 41 have a cylindrical shape with a bottom, and the opening ends 21 and
Alternatively, the bottoms 3a and 4a of the cylinder are fitted into the opening end 22 toward the inside of the paper cylinder 2, so that both opening ends 21 and 22 can be closed. The flanges 34 and 44 extend from the peripheral edges of the lid main bodies 31 and 41, and are engaged with the peripheral edges of the open ends 21 and 22 when the lid main bodies 31 and 41 are fitted to the open ends 21 and 22, respectively. The fitting depth of the main bodies 31, 41 is regulated. Also, the bottom cover 4 has a portion (hereinafter, referred to as a “recessed portion”) 41 a corresponding to the tip of one bent portion 68 of the second band 6 described later in a direction inward of the paper cylinder 2 from the other portion 41 b. Is recessed. As shown in FIGS. 4 and 5, the first band 5 and the second band 6 include band bodies 52 and 62 having a slit 51 or a slit 61 in part, and a band body 5.
Lever-type clamps (shrimp fittings) 7 as fastening means for reducing the diameters of 2, 62 are provided. As shown in FIG. 2 or FIG. 3, the band main body 52 or the band main body 62 has the bent portions 58 and 59 or the bent portions so as to be bent inward along both side edges of the plate-shaped ring portion 52a or the plate-shaped ring portion 62a. 68 and 69 are provided, respectively, and have a ring shape having a substantially U-shaped cross section. Further, the band 5 is provided over the entire circumference so that the engaging claw 57 rises vertically from the other lateral side 59 of the band main body 52. The engaging claw 57 is attached to the band body 52.
When the diameter is reduced, the diameter is such that it engages with the inside of the cylindrical portion 42 of the bottom cover 4. As shown in FIGS. 4 and 5, the lever type clamp 7 has a slit 51 (61).
A first member 71 and a second member 72 fixed to the band main body 52 (62) with a pair of levers 73 and a connection ring 74 connecting the first member 71 and the second member 72 therebetween. . The lever 73 is rotatably supported by the first member 71, and the connection ring 74 is rotatably supported by an intermediate portion between the second member 72 and the lever 73. That is, the lever-type clamp 7 rotates the lever 73 to rotate the first member 71.
Along the side band body 52 (62), the second
The member 72 is pulled toward the first member 71, and as shown in FIG.
62) is reduced in diameter. When the lever 73 is rotated toward the second member 72, the slit 51 (61) expands, and as shown in FIG.
62) is expanded. The fiber drum 1 can be used as follows. The opening end 22 corresponding to the bottom side of the paper cylinder 2 is covered with the bottom cover 4. That is, the collar 4
The lid main body 4 a is fitted into the opening end 22 until 4 hits the periphery of the opening end 22. The tightening band 6 is mounted so that the flange 44 of the bottom cover 4 fits between the bent portions 68 and 69 of the band main body 62. At this time, the lever 73 of the lever-type clamp 7 is turned to the second member 72 side, that is, the slit 61 is expanded. The diameter of the band body 62 is reduced by rotating the lever 73 of the lever-type clamp 7 along the band body 62 on the first member 71 side. Due to this reduced diameter, the paper cylinder 2 is sandwiched between the tip of the bent portion 68 of the band main body 62 and the wall surface of the lid main body 4a. Moreover, since the lateral side 68 is arranged so as to face the recessed portion 41a of the fitting portion 41, the paper cylinder 2 is also narrowed down into the recessed portion 41a, and the bottom cover 4 is more securely prevented from falling off. You. After the contents are put into the paper cylinder 2 from the opening end 22 of the paper cylinder 2, the opening end 22 is covered with the upper lid 3. That is, the lid main body 31 is fitted into the open end 21 until the flange 34 contacts the periphery of the open end 21. The tightening band 5 is mounted so that the flange 34 of the upper lid 3 fits between the bent portions 58 and 59 of the band main body 52. At this time, the state where the lever 73 of the lever-type clamp 7 is rotated toward the second member 72, that is, the state where the slit 51 is expanded, is kept. The diameter of the band body 52 is reduced by rotating the lever 73 of the lever type clamp 7 along the band body 52 on the first member 71 side. Due to the reduced diameter, the paper cylinder 2 is sandwiched between the tip of the bent portion 58 of the band main body 52 and the wall surface of the lid main body 31. The fiber drum 1 is transported by a transporting means such as a truck or stored in a warehouse or the like. During transport or storage, a large number of fiber drums 1 are often stacked up and down. Therefore, when the fiber drums 1 are stacked, the engaging claws 57 of the first band 5 project upward and the lid main body 4a has a bottomed cylindrical shape. The dovetail 57 enters the cylinder and enters the cylinder portion 42 to engage with the inner wall surface of the cylinder portion 42, so that even if the claws 57 are stacked high, the collapse of the load does not occur. On the other hand, when the fiber drum 1 has been used, the fiber drum 1
Is released, the top cover 3 and the bottom cover 4 can be easily separated from the paper cylinder 2. That is, the paper cylinder 2 made of only paper and the top cover 3, bottom cover 4, first band 5, and second band 6 formed of iron or synthetic resin can be easily separated, and recycling is facilitated. The fiber drum according to the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the first band 5 is used for the top cover 3 and the second band 6 is used for the bottom cover 4, but the first band 5 is used for the bottom cover 4, and the second band 6 is used for the top cover 3. It may be used for In the above embodiment, the lever type clamp 7 is used as the fastening means.
Is used, but a clamp screw may be used. Since the fiber drum according to the present invention is configured as described above, it can be easily separated for each material forming the fiber drum, and recycling can be facilitated. In particular, according to the second aspect, the bottom lid can be fixed more firmly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway front view of a fiber drum according to the present invention. FIG. 2 is a cross-sectional view illustrating a fixed state between an upper cover and a main body of the fiber drum in FIG. 1; FIG. 3 is a cross-sectional view illustrating a fixed state of a bottom cover and a main body of the fiber drum of FIG. 1; FIG. 4 is a plan view illustrating a state in which a tightening band is released. FIG. 5 is a plan view illustrating a closed state of the tightening band. FIG. 6 is a perspective view illustrating a state in which a first tightening band is closed. FIG. 7 is a sectional view showing a state in which the fiber drums of FIG. 1 are stacked. FIG. 8 is a sectional view of a conventional fiber drum. FIG. 9 is an explanatory diagram illustrating a manufacturing process near an upper opening of a conventional fiber drum. FIG. 10 is an explanatory diagram illustrating a manufacturing process near the bottom of a conventional fiber drum. [Description of Signs] 1 Fiber drum 2 Paper cylinder 3 Top lid 4 Bottom lid 5 First tightening band 6 Second tightening band 7 Lever type clamp (tightening means) 21 Open end 22 Open end 31 Lid body 3a Bottom 32 Tube part 34 Flange 41 Lid body 4a Bottom 42 Recess 44 Flange 52 Band body 58 Bend part 62 Band body 68 Bend part 41a Recessed part

Claims (1)

Claims: 1. A paper cylinder serving as a fiber drum main body, and a bottomed cylindrical shape which fits into an opening end of the paper cylinder with its bottom side facing the inside of the paper cylinder and closes the opening. A pair of upper and lower lids having a lid body, a flange extending from an upper edge of the lid body, and being engaged with an opening edge of the paper cylinder when the lid body is fitted to the paper cylinder; and a bent part bent inward. A ring-shaped band main body having a substantially U-shaped cross section provided along both side edges of the plate-shaped ring portion and having a partially cut and expandable / reducible diameter, and a band main body which is tightened by a releasable tightening means. Is reduced in diameter, and the end of one bent portion clamps the vicinity of the opening end of the paper cylinder with the lid body fitted into the paper cylinder, and the other bent portion has a flange portion of the lid. And a pair of upper and lower tightening bands for securing the lid to the paper cylinder. 2. A bottom cover of the upper and lower lids, wherein a wall surface corresponding to one bent end of the band body of the lid main body is recessed toward the inside of the cylinder. Fiber drum.