JP2670741B2 - Fiber drum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION This invention relates to fiber drums.

[0002]

2. Description of the Related Art As a fiber drum, a fiber drum as disclosed in Japanese Utility Model Publication No. 34-6990 shown in FIG. 8 is generally used. The fiber drum 100 includes a drum body 200, a lid 300, and a tightening band 400. The drum body 200 integrally has a bottom plate 500, and is provided with an engaging recess 210 near the upper opening. The lid 300 is configured such that the peripheral edge portion 301 is received by the opening edge of the drum main body 200 to close the opening of the drum main body 200. Tightening ring 4
00 has a band main body 404 in which a part of the ring is cut and has a ring shape with a substantially U-shaped cross section provided with bent portions 401 and 402 that bend inward along both side edges of the ring main body 403. One bent portion 401 is reduced in diameter by being tightened by attaching means (not shown).
Is engaged with the engaging recess 210 of the drum body, and the other bent portion 402 locks the peripheral edge portion 301 of the lid 300 to fix the lid 300 to the drum body 200. By the way, these days, from the viewpoint of environmental protection,
Although the recycling of resources is being called for, the conventional fiber drum 100 as described above has a problem that recycling is difficult. That is, the conventional fiber drum 1
In the case of No. 00, the drum main body 200 fits a bottom plate (base plate) 202 made of paper or veneer plate to one side of the paper cylinder 201 as shown by a chain line in FIG. An iron plate (or synthetic resin plate) 203 serving as a lower reinforcing member is wound from the outside to form a tubular shape, or a pre-cylindrical iron plate (or synthetic resin sheet) 203 is fitted, and is shown by a solid line in FIG. Like iron plate (or synthetic resin plate) 203
By caulking the protruding portion 204 inward, the paper cylinder 201 and the bottom plate 202 are integrated via the iron plate (or synthetic resin plate) 203.

Further, as shown by a chain line in FIG.
A steel plate (or synthetic resin plate) 203 serving as an upper reinforcing member is wound from the outside in the vicinity of the upper opening of 01 to form a tubular shape, or
A cylindrical iron plate (or synthetic resin plate) 203 is fitted in advance. Then, as shown by the solid line in FIG. 10, by caulking the protruding portion 204 of the iron plate (or synthetic resin plate) 203 inward, the vicinity of the upper opening of the paper cylinder 201 is reinforced by the iron plate (or synthetic resin plate) 203. At the same time, the engaging recess 210 is formed. That is, since the iron plate (or synthetic resin plate) 203 as the reinforcing material, the paper cylinder 201, and the bottom plate 202 are integrated by caulking, when trying to recycle and use each material of the used fiber drum, The paper cylinder 201 and the bottom plate 202 and the iron plate 203 as a reinforcing material must be separated,
Very difficult to dismantle. Therefore, the used fiber drum is currently incinerated and the 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 parts can be easily separated and can be easily collected separately.

[0008]

In order to achieve such an object, a fiber drum according to the present invention comprises a paper cylinder which serves as a fiber drum main body and a paper cylinder whose bottom side faces the inside of the paper cylinder. A bottomed cylindrical lid body that fits into the opening end and closes the opening, and a collar that extends from the upper edge of the lid body and is locked to the opening edge of the paper tube when the lid body is fitted into the paper tube. A pair of upper and lower lids each having a portion and a bent portion that bends inwardly along both side edges of the plate-shaped ring portion and has a substantially U-shaped cross section, and a band body in which a part of the ring is cut. The band body is reduced in diameter by being tightened by a tightening means that can be loosened, and the end of one of the bent portions is sandwiched between the opening end of the paper cylinder and the lid body fitted to the paper cylinder. While attaching the lid, fix the lid to the paper tube by locking the collar part of the lid to the other bent part. And a configuration in which a pair of fastening bands. In addition, the wall surface of the lid main body corresponding to one end of the bent portion of the band main body is recessed toward the inside of the cylinder.

In the above structure, the lid and the tightening band are made of metal or synthetic resin. In addition, the tightening band, when stacking multiple fiber drums,
It is preferable to have an engaging claw that is engaged with a recess of the lid of another fiber drum that is stacked above or below. The engaging claws may be provided over the entire circumference along the inner peripheral surface of the recess, or may be provided intermittently.

[0011]

According to the structure of the fiber drum of the present invention, the fastening band can be expanded in diameter by releasing the fastening means. Therefore, the pinching of the paper tube between the one bent end of the tightening band and the wall surface of the lid body is released, and the lid can be separated from the paper tube. That is, the paper cylinder and the lid or the fastening band made of iron or synthetic resin can be easily separated, and the separate collection can be performed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing the embodiments thereof. FIG. 1 shows an embodiment of a fiber drum according to the present invention. As shown in the figure, this fiber drum 1 has a cylindrical paper tube 2
And a top lid 3, a bottom lid 4, a first tightening band (hereinafter referred to as “first band”) 5, and a second tightening band (hereinafter, referred to as “first band”).
(Referred to as "second band") 6).

The upper lid 3 and the bottom lid 4 are formed by pressing an iron plate, and are provided with lid bodies 31 and 41 and collar portions 34 and 44 as shown in FIGS. 2 and 3. The lid bodies 31 and 41 have a bottomed tubular shape, and are fitted into the open end portion 21 or the open end portion 22 of the paper tube 2 with the bottoms 3 a and 4 a of the tube facing the inside of the paper tube 2, respectively. The open end portions 21 and 22 can be closed. Collar 3
Numerals 4 and 44 extend from the peripheral edges of the lid main bodies 31 and 41, and are locked to the peripheral edges of the open end portions 21 and 22 when the lid main bodies 31 and 41 are fitted into the open end portions 21 and 22. , 41 are adapted to regulate the fitting depth. In addition, bottom cover 4
A portion (hereinafter, referred to as a “recessed portion”) 41a to which one end of a bent portion 68 of the second band 6 described later corresponds is recessed inward from the other portion 41b in the paper tube 2. I have.

The first band 5 and the second band 6 are shown in FIG.
As shown in FIG. 5 and FIG. 5, a band main body 52, 62 partially provided with a slit 51 or a slit 61, and a lever type clamp (shrimp metal fitting) 7 as a tightening means for reducing the diameter of the band main body 52, 62 are provided. Each has it. As shown in FIG. 2 or 3, the band main body 52 or the band main body 62 has a plate-shaped ring portion 52a or a plate-shaped ring portion 62a.
Bending parts 58 and 5 so as to bend inward along both side edges of the
9 or bent portions 68 and 69, respectively, and have a ring shape having a substantially U-shaped cross section. Also, 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 body 52.
When the band main body 52 is in a contracted state, the engaging claws 57 are
The diameter is set so as to engage with the inside of the tubular portion 42 of the bottom lid 4.

As shown in FIGS. 4 and 5, the lever type clamp 7 includes a first member 71 and a second member 71 fixed to a band body 52 (62) with a slit 51 (61) interposed therebetween.
The member 72 includes a lever 73 and a connecting ring 74 that connect the first member 71 and the second member 72. The lever 73 is rotatably supported by the first member 71, and the coupling ring 74 is rotatably supported by an intermediate portion between the second member 72 and the lever 73.

That is, in this lever type clamp 7, the lever 73 is turned to rotate the band main body 52 on the side of the first member 71.
When it follows along (62), the second member 72 is pulled toward the first member 71 side via the connecting ring 74, and the band body 52 (62) is reduced in diameter as shown in FIG. . Further, when the lever 73 is rotated to the second member 72 side, the slit 51 (61) expands, and as shown in FIG. 5, the band main body 52 (62) expands in diameter.

The fiber drum 1 can be used as follows. The open end portion 22 corresponding to the bottom side of the paper tube 2 is covered with the bottom cover 4. That is, the lid main body 4 a is fitted into the opening end 22 until the flange 44 contacts the peripheral edge of the opening end 22.

The tightening band 6 is attached so that the collar portion 44 of the bottom lid 4 fits between the bent portions 68 and 69 of the band body 62. At this time, the lever 73 of the lever clamp 7 is rotated to the second member 72 side, that is, the slit 61 is expanded. The lever 73 of the lever clamp 7 is rotated along the band body 62 on the first member 71 side to reduce the diameter of the band body 62.

Due to this reduced diameter, the paper tube 2 is sandwiched between the tip of the bent portion 68 of the band body 62 and the wall surface of the lid body 4a. Moreover, the lateral side 68 is the concave portion 41 of the fitting portion 41.
Since it is arranged so as to face the portion a, the paper tube 2 is also narrowed down in the recessed portion 41a, and the bottom lid 4 is more firmly prevented from coming off. After the contents are put into the paper tube 2 through the opening end 22 of the paper tube 2, the opening end 22 is covered with the upper lid 3. That is, the lid main body 31 is fitted into the opening end portion 21 until the collar portion 34 contacts the peripheral edge of the opening end portion 21.

The tightening band 5 is attached so that the collar portion 34 of the upper lid 3 fits between the bent portions 58 and 59 of the band body 52. At this time, the lever 73 of the lever clamp 7 is rotated to the second member 72 side, that is, the slit 51 is expanded. The lever 73 of the lever clamp 7 is rotated along the band body 52 on the first member 71 side to reduce the diameter of the band body 52.

Due to the reduced diameter, the paper tube 2 is sandwiched between the tip of the bent portion 58 of the band body 52 and the wall surface of the lid body 31. The fiber drum 1 is transported by a transporting means such as a truck or stored in a warehouse or the like, but a large number of fiber drums 1 are often stacked vertically during transport or storage. Therefore, in this fiber drum 1, since the engaging claws 57 of the first band 5 project upward and the lid body 4a has a bottomed cylindrical shape, when the fiber drum 1 is stacked, it is engaged as shown in FIG. Dovetail 5
7 enters the inside of the cylinder and enters the inside of the cylinder portion 42 and engages with the inner wall surface of the cylinder portion 42, so that the load does not collapse even when stacked high.

On the other hand, when the fiber drum 1 is used, the upper lid 3 and the bottom lid 4 of the fiber drum 1 can be easily separated from the paper tube 2 by releasing the lever type clamp 7. That is, the paper tube 2 made only of paper and the top cover 3, the bottom cover 4, the first band 5, and the second band 6 made of iron or synthetic resin can be easily separated, which facilitates recycling.

The fiber drum according to the present invention is not limited to the above embodiment. For example, in the above embodiment, the first band 5 is used for the upper lid 3 and the second band 6 is used for the bottom lid 4, but the first band 5 is used for the bottom lid 4 and the second band 6 is used for the upper lid 3. It may be used for Further, although the lever type clamp 7 is used as the tightening means in the above embodiment, a clamp screw may be used.

[0025]

Since the fiber drum according to the present invention is constructed as described above, it can be easily separated for each material forming the fiber drum, and can be easily recycled. Particularly, according to claim 2, the lid can be fixed more firmly.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional front view of a fiber drum according to the present invention.

FIG. 2 is a cross-sectional view illustrating a fixed state between a top cover and a main body of the fiber drum of FIG.

FIG. 3 is a cross-sectional view illustrating a fixed state between a bottom cover and a main body of the fiber drum of FIG.

FIG. 4 is a plan view illustrating an opened state of the tightening band.

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 the first tightening band is closed.

7 is a cross-sectional view of the fiber drums of FIG. 1 in a stacked state.

FIG. 8 is a sectional view of a conventional fiber drum.

FIG. 9 is an explanatory diagram illustrating a manufacturing process near the upper opening of a conventional fiber drum.

FIG. 10 is an explanatory view illustrating a manufacturing process near the bottom of a conventional fiber drum.

[Explanation of symbols]

 1 Fiber Drum 2 Paper Tube 3 Top Lid 4 Bottom Lid 5 First Tightening Band 6 Second Tightening Band 7 Lever Clamp (Tightening Means) 21 Open End 22 Open End 31 Lid 3a Bottom 32 Tubing 34 Collar part 41 Lid main body 4a Bottom 42 Recessed part 44 Collar part 52 Band main body 58 Bent part 62 Band main body 68 Bent part 41a Recessed part

Claims (2)

(57) [Claims] 1. A paper cylinder to be a fiber drum main body, a bottomed cylindrical lid main body which is fitted into an opening end of the paper cylinder with its bottom side facing the inside of the paper cylinder and closes the opening, and the lid. A pair of upper and lower lids that extend from the upper edge of the main body and have a flange portion that is locked to the opening edge of the paper cylinder when the lid main body is fitted to the paper cylinder, and a bent portion that bends inward are provided in the plate-shaped ring portion. It has a ring-shaped band body that has a substantially U-shaped cross-section along both side edges and that can be expanded / contracted by cutting a part of it. The end of the bent portion of the paper is clamped near the opening end of the paper tube with the lid body fitted to the paper tube, and the flange portion of the lid is locked to the other bent portion to close the lid. A fiber drum that includes a pair of upper and lower tightening bands that are fixed to a paper cylinder. 2. The fiber drum according to claim 1, wherein a wall surface corresponding to one end of the bent portion of the band body of the lid body is recessed toward the inside of the cylinder.