JPH10329805A - Plastic container, and roping method for piled up plastic container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the roping of piled up round plastic containers. SOLUTION: This round plastic container 2 whose upper part is open and which is in an inverted truncated cone shape with a bottom is provided on the outer face of its opening part 2a with a pair of handles 5 which work as a stacking rib. When the plastic container 2 is piled up for shipping, etc., these handles 5 can be arranged vertically in a straight line. When a rope 51 is wound to encircle these handles 5 to tie, this work can be done much easier than traditional roping in a cross shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for hanging a stacked polycontainer on a rope and to the polycontainer.

[0002]

2. Description of the Related Art Conventionally, an inverted truncated cone-shaped upper-opening plastic bottomed container (which is also referred to as a round plastic container or simply a plastic container in this specification) is covered with a lid, and the lid is fixed. For this purpose, a clamping device is provided.

[0003] This clamp device is attached to the lid side (for example, see Japanese Utility Model Application Laid-Open No. 4-60904), and is attached to the container side (for example, Japanese Patent Publication No. 62-18765, Japanese Patent Application Laid-Open No. 7-285604). No., etc.), and the other party is tightened.

The clamp device attached to the container has the following features as compared with the clamp device attached to the lid.

[0005] 1) When attached to the lid side, to open the lid,
Since the lid is lifted after the lower portion of the clamp device is opened outwardly, the clamp device is deflated by its own weight and hangs down, and is easily hooked again on the locking piece provided on the container, so that the lid cannot be opened smoothly once. There are cases.

[0006] 2) When mounted on the lid side, as a case different from the above 1), the clamp device hangs down and it is not clear whether or not it is locked on the locking piece provided on the container.
It is difficult to see the closed state of the lid.

[0007] 3) Since the lid is often lost, it is necessary to replenish the lid when it is lost. However, if the lid is to be made as inexpensive as possible, it is necessary to simplify the lid. It is better to attach to the side.

[0008] 4) When the cover is attached to the lid side, it is difficult to fit the lid during stacking (stacking), but since the ear side handle is inevitably provided on the container side, even if the clamp device is attached to the container side. This has no effect on the stacking of the containers.

Therefore, the present inventors have attempted to develop a plastic container product while attaching the clamp device to the container side and utilizing the above-mentioned features.

On the other hand, an upper opening plastic bottomed container is
It is not a cylinder but an inverted truncated cone.
First, it is said that when a cylindrical one is stacked, it becomes very bulky.

In order to ship the inverted-cone-shaped upwardly open plastic bottomed container to a production plant, the container is stacked and then hanged on a rope (in the present specification, not only a rope but also a rope or a rope). (A nylon string or a PP rope may be used in some cases), and packing is performed. Usually, the rope is crossed by an orthogonal cross.

[0012]

Therefore, in order to take advantage of the above-mentioned features, a plastic bottomed container having a clamping device attached to the container side was developed in consideration of a rope hanging operation. Was.

The clamp device attached to the container has a vertical sectional shape of L or U-shape. When the clamp device is opened, the L or U-shape faces upward and hangs down.

For this reason, when five containers are stacked and roped, for example, the L or U-shape protrudes upward and becomes an obstacle, and when an external force acts on the containers, the pivotal portion may be damaged. is there.

In order to hang the plastic bottomed containers stacked one on the other, the crossing is usually carried out by orthogonal crossing. However, the lower surface of the lowermost stage is provided on the mud ring of the lowermost plastic bottomed container. Although a rope is hung on the dent to prevent slippage, the work of orthogonally hanging on an outer circumferential arc and a slippery plastic surface on the uppermost upper surface is often troublesome due to failure.

Therefore, for example, Japanese Utility Model Publication No. 55-397
Although it is possible to cross-hook a cylindrical body with a packing band as disclosed in Japanese Patent Application Publication No. 64, it is difficult to apply an automatic packing apparatus that hangs ropes on stacked plastic containers.

Further, if the plastic bottomed containers stacked one above the other are strongly roped, the outer periphery of the plastic bottomed container at the top may be deformed. That is, the product quality may be impaired.

In addition, as a method of hanging the inverted truncated conical bottomed container, a method called "barrel knotting" is widely used.
This is a method of tying two sets of three ropes at 120 ° intervals, so this knot tying is convenient for small items to be put on the store, but medium or large stacked plastic It is not preferable to pack the container when it is shipped from a production factory, because the quality becomes excessive and the product price may increase.

[0019]

SUMMARY OF THE INVENTION Therefore, a main object of the present invention is to make it easy to hang a pile of plastic containers, and a secondary object is to provide a clamping device attached to a plastic container. In order to overcome the above-mentioned problems, the gist of the invention is as follows: 1) A stack of plastic containers provided with a pair of left and right handles on the outer surface of the upper opening and provided with a handle functioning as a stacking rib. The method is to hang a string body around each of the handles after forming the handles in series and then wrapping the strings around the handles. A plastic container provided with a cover that can be covered, and the covered lid fixed by a clamp device attached to the container side. A pair of handles that function as stacking ribs are provided orthogonal to the device so that the clamp device can be kept upright even with the lid removed, and the handles can be stacked in series when stacking the plastic containers. The present invention provides a plastic container with a clamping device, wherein the plastic container is formed and wound around a rope so as to surround these handles.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to embodiments shown in the accompanying drawings. FIG. 1 is a partially omitted overall perspective view of a plastic container using an embodiment of the present invention, FIG. 2 is an explanatory view of the embodiment of the present invention, FIG. 4 is a plan view of a main part of FIG. 3, FIG. 5 is an explanatory view of a main part of FIG. 1, FIG. 6 is a perspective view of a main part of FIG. 5, and FIG. 7 is a perspective view of another main part of FIG.

Trash 1 using an embodiment of the present invention
Is an inverted frustoconical bottomed container called a round plastic container, which is an injection molded product using polypropylene or polyethylene. That is, for example, a 50 liter (more specifically, 30 to 90 liter) container made of a synthetic resin is mainly used for ordinary households.

Therefore, the height of the trash box main body 2 is approximately 500
mm, upper opening diameter about 380mmφ, bottom diameter about 330m
It has a size of mφ and a wall thickness of about 2 to 2.5 mm, and can be moved by a housewife.

Now, the method of hanging the rounded round plastic containers (2) according to the embodiment of the present invention on a rope is performed as follows.

In FIG. 2, (A) is a schematic diagram, and (B) is a detailed sectional view of a main part. The details of the structure will be described later.

A pair of main body handles 5 are provided in the upper opening 2a of the round plastic container (2), and these main body handles 5 are formed in a downward flat box shape. The so-called stacking ribs when stacking plastic containers (2) (when stacking molded articles with tapered side walls, when removing the molded articles from the stacking, slipping off due to frictional resistance, In addition, an excessive load is applied to the side wall at the time of stacking, and there is a possibility that the side wall may be damaged. In order to prevent such a load, the load is supported by stacking ribs. The lower edge or the lower side surface (foot ribs 46, 46) abuts the edge of the opening of the rounded plastic container (2) immediately below the stacked, and is stacked. Are arranged side by side so as to be stacked in series.

In view of this, the upper part (ceiling plate 45) of the uppermost body handle 5 where the rope disconnection preventing part is formed, and the lower part or the lower part where the rope detachment preventing part (cutout part 50) of the lowermost body handle 5 is formed. A round plastic container (2) in which a string (rope) 51 is hung on the lower side (foot ribs 46, 46) and stacked.
Of all the main body handles 5, 5...

In short, the method of hanging the stacked round plastic containers (2) on a rope is a pair of main body handles 5, 5 provided in a pair on the right and left sides and serving as a stacking rib.
By wrapping and tying a string so as to surround the

Therefore, the rope hanging can be performed efficiently without fail, and the handle 5 for the main body can be used instead of the stacking rib even if the cord is strongly tied. The round plastic container (2) will not be deformed or damaged without any breakage, and no barbed plate used for hanging ropes will be required. As a result, an automatic rope hanging device can be easily applied.

Next, the trash can 1 embodying the present invention will be outlined first. 1, 3 and 4,
The trash box body 2 has a cover 3 with a large flap
The lid 3 is fixed by a pair of right and left turning jaw clamps 4 attached to the trash box main body 2 side. The trash box main body 2 is provided with a pair of ear-shaped main body handles 5 and 5 at positions orthogonal to the pair of turning jaw clamps 4. The lid 3 is formed in a shallow dish shape, and a lid handle 6 is provided at the center of the upper surface.

Since the trash box 1 is used by mounting a plastic bag (not limited to a polystyrene bag, but a plastic film bag) 7, a pair of the following plastic bag holders (in this specification). The plastic bag retainer has a function of not only pressing the open end of the plastic bag but also holding or locking the same).

That is, this one plastic bag holder 8 is
One polybag 7 is held, and the other polybag holder 8 is designed to hold the other polybag 7 so that the two plastic bags 7 can be placed in the one-tank trash box 1 without using a partition plate or a partition bar. , 7 is attached to contribute to garbage separation and collection.

Accordingly, the plastic bag holder 8 used for the round trash box 1 is formed in a semicircular arc shape, and as shown in FIG. The opening 2a is stretched so as to extend across the diameter to the opposite shore, and the remaining opening is pressed.

For this purpose, plastic bag retainers 9 are provided at both ends of the plastic bag retainer 8, respectively, and a part of the opening of the plastic bag 8 is preliminarily engaged with these plastic bag retainers 9. To enlarge. 3 and 4, reference numeral 8a denotes an elongated plate-shaped main body forming the plastic bag holder 8, reference numeral 12 denotes a bent portion, and reference numeral 13 denotes a bent portion.
A slot pin 15 is a gripping portion.

Next, the clamp 4 with the turning jaw and the handle 5 for the main body will be described in detail. Swivel clamp 4 (rotating around pivot pin 33 described later is referred to as turning)
Is also referred to as a clamping device in the present specification, but as shown mainly in FIGS.
m, a rectangular curved plate 30 formed by injection molding and having a width of 85 mm, and the lower side (the upper and lower sides in a state where the lid 3 is clamped; the same applies hereinafter) inside the both ends of the long side (the state where the lid 3 is clamped). , And the same applies to the following. Arms 31 for pivotal support are projected from each other, and an eave body 32 is projected from the inside of the upper end.

Therefore, when viewed in a longitudinal section, the turning jaw clamp 4 is formed in a U-shape as shown in FIG. 5 (B). The curvature of the curved plate 30 is concentric with the arc of the upper opening 2a of the trash box main body 2.

The pair of pivoting arms 31, 3
A pivot pin 33 protrudes from the outer end of the tip 1, and a locking ridge 34 having a spherical cross section, that is, a jaw is provided below the tip of the eaves 32.

The pivot pin 33 has a diameter of about 5 mm and an axial length of about 5 mm, and a taper is formed on the tip of the pivot pin 33 so that the clamp 4 with the revolving jaw can be easily assembled to the trash box main body 2. I have.

In particular, on the upper surface of the pivot pin 33, a flat key -3 is provided to facilitate the rider with a taper toward the arm base.
5 are protruding. The pivot pin 33 and the flat key 35 are fitted and supported by a pair of bearing ribs 36 integrally formed on the outer periphery of the upper opening 2a of the trash box main body 2. Of course, the pair of bearing ribs 36,
36 are provided in two sets facing each other at the upper opening 2a.

That is, the bearing ribs 36 are parallel to each other, and this is
a-shaped peripheral edge portion 1 slightly enlarged in diameter by forming step portion 10 of FIG.
1, an outwardly directed flange 37 at its upper end, and
The folded flap 38 is connected. Therefore, the rib 36 is hardly deformed, and the pivot pin 33 is hardly disengaged.

In this bearing rib 36, a pin hole 39 for inserting the pivot pin 33 just below the outward flange 37, and a bearing rib 36, 36 facing above the pin hole 39. A key groove 40 into which the flat key 35 is fitted is formed on the inside, and the key groove 40 is formed below the pin hole 39.
An assembly guide groove 41 wider than the groove 40 is formed.

Therefore, the turning jaw clamp 4 operates as shown in FIG. That is, FIG. 5A is a partially omitted front view, FIG. 5B is a cross-sectional view taken along line A-A of FIG. 5A, FIG. FIG. 3C is a view showing a state in which the pivoting jaw clamp 4 or the bearing rib 36 is distorted due to resin elasticity when the pivoting jaw clamp 4 is positioned laterally, and FIG. FIG. 4 shows a state diagram in which 4 is made independent.

In these figures, in order to fix the lid 3, as shown by the solid line in (B), the turning jaw clamp 4 is erected, and the locking ridge (jaw) 34 is provided on the lid 3. The orientation flange 37 is locked on the upper surface where the lower convex portion 42 is located.
At this time, the flat key 35 is connected to the key groove 40 as shown in FIG.
Is fitted.

Next, as shown in a two-dot chain line in (B), the operator grasps and turns the clamp 4 with the turning jaw to open the lid 3 and turns it down sideways. As shown in FIG.
The clamp 4 with the pivoting jaw is distorted so as to distort the pair 36 outward from the parallel state, or to distort the pair of pivoting arms 31, 31 or both. It is fixed in a horizontal position. Therefore, when the clamp 4 with the revolving jaw is to be re-clamped,
One touch with the shortest turn.

If the turning jaw clamp 4 is turned further downward from the side, that is, if it is turned 180 ° from the solid line in FIG.
The clamp 4 with the swinging jaw is slightly swingable and hangs down.
When an external force acts on 2 from above, it is easy to catch on it,
As a result, the pivot pin 33 may be damaged, and the pivot pin 33 hangs slightly longer than the lower end of the main body handle 5, which will be described later.

Therefore, in the trash can 1 as described above,
When stacking 4 to 5 garbage bins 2 in a stack and hanging them on a rope, as shown in (E), even when the lid 3 is removed, the clamp 4 with the turning jaw is raised. At that time, flat key
35 is fitted in the key groove 40, and the turning jaw clamp 4 is held without falling.

Therefore, even if a pair of turning jaws 4 are erected facing each other in the upper opening 2a, the upper inverted truncated cone-shaped garbage bin main body 2 is formed during stacking.
There is no problem. Of course, the external force is unlikely to act on the clamp 4 with the pivoting jaw that stands up.

Next, the main body handle 5 will be described. This is located opposite to the outer surface of the upper opening 2a of the
As shown in FIGS. 2, 3, 4 and 7, the folded flap 3 of the trash box main body 2 is mainly provided.
8, a ceiling plate 45 integrally extending from the lower end of the trash box 8, the bank-shaped peripheral edge portion 11, a pair of foot ribs 46, 46 connected over the outward flange 37 and the folded flap 38, and the outer periphery of the trash can main body 2. And a concentric curved side plate 47 and a downward flat box type, which are integrally provided on the trash box main body 2 in an ear shape. This box is about 30mm high, about 100mm wide and about 40m deep
m, and can be easily molded at the time of injection molding of the plastic container (2).

The virtual outer diameter (approximately 460 mmφ) of the downwardly flat box-shaped main body handle 5 is substantially the same as that of the lid clamp devices 4 and 4A, so that the trash can main body 2 can be easily accommodated in stacking. I have.

The ceiling plate 45 is provided with a surrounding piece 48 extending slightly upward from the curved side plate 47, and a through hole 49 is provided at the center thereof. Also, a notch 50 is formed in the foot rib 46.
Has established

Accordingly, the downward flat box-shaped handle 5 for the main body is not only a handle for lifting the trash box main body 2, but also a stacking for stacking other trash can main bodies 2 as shown in FIG. Instead of ribs,
As described above, the rope can be hung, or the ends of the strings can be tied to the lid handle 6 of the lid 3 and the through hole 49, respectively, to prevent the lid from being dissipated, or to suspend the cash register pack.

Although the plastic container of this embodiment has been described as a trash can, the present invention is not limited to this, and it goes without saying that a general plastic container may be used.

[0052]

According to the first aspect of the invention, as compared with the conventional cross-shaped rope tying, the rope tying work does not fail, and there is no need to particularly lift the stacked poly-containers. Improve efficiency.

That is, following the principles such as being able to perform the work efficiently in packing, being safe, not taking up a packing work place, keeping the work height constant, and being a linear work. can do.

In particular, even if the cord is strongly tied, the handle is a solid handle that functions as a stacking rib. Therefore, the handle is not damaged and the plastic container is not deformed or damaged.

According to the second aspect of the present invention, since the clamping device is mounted on the container side, the above-mentioned advantageous advantages can be exerted, and of course, even when the lid is removed, the clamp device stands on the upper opening side of the container. So, even if you stack plastic containers,
This clamping device can be packed well without being hindered, and in addition to the effect of the first aspect.

In particular, an external force from above is unlikely to act on the clamp device, the pivotal portion thereof is not damaged, and the entire structure can be simplified, reduced in cost and improved in quality by serving as a stacking rib and a handle.

[Brief description of the drawings]

FIG. 1 is a partially omitted overall perspective view of a plastic container using an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an embodiment of the present invention.

FIG. 3 is a partial cross-sectional main part view of FIG. 1;

FIG. 4 is a plan view of a main part of FIG. 3;

FIG. 5 is an explanatory diagram of a main part of FIG. 1;

FIG. 6 is a perspective view of a main part of FIG.

FIG. 7 is a perspective view of another main part of FIG. 1;

[Explanation of symbols]

2 ... trash box body, 3 ... lid, 4 ... clamp with swiveling jaws, 5 ...
Handle for body, 51 ... string body

Claims (2)

[Claims] 1. A pair of left and right poly-containers provided on the outer surface of an upper opening and provided with handles that function as stacking ribs are formed in a stack so that the handles are stacked in series. Wrapping a string so as to surround the handle. 2. A plastic container having an upper opening provided with a cover capable of being covered, and the covered lid being fixed by a clamp device attached to the container side, wherein the clamp device is disposed on the upper opening at right and left sides. A pair of handles, which function as stacking ribs, are provided at right angles to these clamp devices so that the clamp device can be kept upright even when the lid is removed, and the handles are stacked in a poly container. A plastic container with a clamping device, wherein the container is formed so as to be sometimes stacked in series, and a cord is wound around the handle so as to surround the handle.