JP3070724B2 - Plastic large trash container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large plastic container to which a caster or a sliding plate can be attached, and more particularly to a plastic waste container with a caster or a sliding plate.

[0002]

2. Description of the Related Art Regarding municipal garbage disposal, if garbage generated at home or the like is not collected promptly, the hygiene is deteriorated, the occupation by garbage and the aesthetic appearance of the environment are impaired. Annual cost of 15 million yen per car)
There is a limit due to such factors.

[0003] For this reason, general households, apartment houses, business cafeterias, and the like have been required to store garbage, and the largest trash containers have been used.

[0004] That is, in recent garbage containers, beautiful and large-sized plastic garbage containers have become available, and the lid has been devised to provide countermeasures against crows and cats and deodorization. An improved caster (a free wheel attached to a leg) or the like is attached to the trash container, so that handling such as moving the trash container is convenient.

Regarding this improved caster, for example, in Japanese Patent Application Laid-Open No. Hei 7-117805, a metal mounting plate is provided on the lower surface of the bottom wall of a plastic trash container, and a caster support plate is stacked on the lower surface of the mounting plate. A caster-mounting structure is shown in which the bottom wall, the mounting plate and the caster-supporting plate are sewn together with bolts and integrated.

[0006] This caster mounting structure is a general caster mounting structure in which a threaded caster mounting shaft penetrates the bottom wall and is fastened with a nut inside (for example, Japanese Patent Laid-Open No. 3-26).
Unlike the publication No. 7202), since the caster-mounting shaft is eliminated, the caster-supporting plate is provided on the caster-support plate with a swivelable caster bracket, and the caster-support plate is detachably attached to the mounting plate. It is described that the caster can be easily replaced, and the mounting plate receives a load applied to the caster, so that the strength of the caster mounting structure is greatly improved.

[0007]

However, in such a caster mounting structure, although having the above advantages, the following problems have occurred.

1) Since the casters used here are not mass-produced general casters, they are expensive unless mass-produced garbage containers are applied.

2) Since the bottom wall, the mounting plate, and the caster-supporting plate are sewn with bolts, bolt holes are opened in the bottom wall, and there is a possibility that sewage collected in the bottom wall may leak.

For this reason, the above-mentioned Japanese Patent Application Laid-Open No. 3-267202 is disclosed.
Although it is conceivable to adopt the caster mounting structure described in Japanese Patent Application Laid-Open Publication No. H11-27139, the caster mounting structure described in this publication mounts a general caster on a carriage separate from the garbage container main body. In addition, while there is no leakage of waste water, there is a disadvantage (for example, expensive) that the garbage container main body and the cart are separated from each other.

[0011]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above problems entirely and to provide a large-sized plastic container such as an inexpensive large-sized garbage container. It was created focusing on the unique point that the concave portion and the rib are easily injection-molded and can be precision-molded in a plastic container. The main points are: 1) A plurality of casters on the bottom surface of the bottom wall. In a large-sized plastic trash container provided with-, a concave portion (27) viewed from the outside is formed in a bottom wall to which the caster is attached, and an upper surface of a plastic mounting plate (21) thicker than the thickness of the container. Then, the mounting plate side fitting peripheral wall (22) and the nut enclosure (23) provided inside the mounting plate side fitting peripheral wall (22) are integrally injection-molded upward, and the nut enclosure (23) is formed. Inside Fixing a metal nut (26),
These mounting plate side fitting peripheral wall (22) and nut enclosure (2)
And 3) connecting ribs (25) so as not to expand or deform
A recess forming wall (28A) for internally fitting the mounting plate side fitting peripheral wall (22) is formed on the lower surface of the recess (27), and the recess forming wall (28A) is formed on the mounting plate side. By fitting the fitting peripheral wall (22) inside, the mounting plate (21) is covered and fixed to the recess (27), and the nut (2) is fixed.
6) The metal caster mounting shaft erected on a mass-produced and commercially available inexpensive caster is attached to the mounting plate (21).
To prevent the leakage of sewage and the like collected in the bottom wall while strengthening the caster mounting structure to increase the durability, and replacing the mounting plate (21) with a trash container. A large-sized plastic trash container with casters, characterized in that a sliding plate (11) that can easily move can be used. By integrally molding a bolt push-in hole, a plastic push-in bolt having multi-stage elastic small teeth is pressed into the bolt push-in hole via the mounting plate,
3. The large-sized plastic trash container with casters according to claim 1, wherein the mounting plate is fixed to the recess, and 3) the mounting plate from which the nuts and casters are omitted is a thick sliding plate. Plastic large trash container with a sliding plate.

[0012]

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 cut front view of an embodiment of the present invention, and FIG.
1 is a bottom view of FIG. 1, FIG. 3 is a partially cutaway view of a side view of a main part of FIG. 1, FIG. 4 is a detailed view of a main part of FIG. 1, and FIG.
, FIG. 6 is a detailed view of the caster of FIG. 1, and FIG.
8 is a sectional view taken along line B-B of FIG. 8, FIG. 8 is a plan view of a main portion of FIG. 6, FIG. 9 is a sectional view of A-A of FIG. 8, and FIG.
FIG. 11 is a main part view of another embodiment of FIG. 1,
12 is a plan view of a main part of FIG. 11, and FIG.
It is sectional drawing.

The embodiment of the present invention is a large-sized garbage container injection-molded using a thermoplastic resin such as polypropylene. The overall size is about 600 mm in front view width, about 400 mm in side view width, and high. It is about 500 mm, which is convenient for use in, for example, a business cafeteria.

First, the trash container will be outlined. Mainly in FIG. 1, FIG. 2 and FIG.
Has a rectangular shape slightly narrowed down in a front view and a side view, and thus has a substantially rectangular shape in a plan view, and constitutes a rectangular container as a whole. In the upper opening of the garbage container main body 1, a bank-shaped peripheral edge (also referred to as a flap) 2 having a slightly enlarged diameter is formed, and the peripheral edge 2 is covered with a lid 3.

The lid 3 has an inverted shallow dish shape, and a fitting ring (also referred to as an outer flap) 4 is formed at an opening edge thereof. Handles 5 are integrally provided on both side surfaces of the trash container main body 1. The handle 5 is composed of a pair of main body brackets 6 and 6 and a grip 7. The bracket 6 is connected to the peripheral edge 2 and protrudes from the side surface of the trash container main body 1. The grip 7 is formed of a pipe body integrally provided at the vertex of the triangular plate bracket 6.

The four corners of the bottom wall 8 of the garbage container body 1
Each of the nuts is provided with a leg, and the leg is formed of a caster 10 (see FIG. 1) or a sliding plate 11 (see FIG. 11).

Since the trash container is as described above,
It is possible to store 70 liters of garbage. In order to move the garbage container main body 1 or tilt it for cleaning, it is sufficient to hold the grip portion 7, and in particular, the garbage container main body is provided by the legs. 1 is moved, so that handling becomes easy.

In this embodiment, a clamp 12 with a hook for sealing the lid 3 is provided as follows. Mainly in FIGS. 4 and 5, the hook-equipped clamp 12 is attached to the lid 3 so that the lid 3 can swing between the pair of main body brackets 6 and 6 in a state where the lid 3 is covered on the garbage container main body 1. The main body side locking piece 13 is provided between the brackets 6 and 6. The main body side locking piece 13 is extended from the bank-shaped peripheral edge portion 2 and bent slightly outward to form the hooked clamp 12.
Can be easily disengaged.

The clamp 12 with the hook is supported by a pair of brackets 14 for the lid, and is locked by the locking piece 13 on the main body side as shown by a chain line in FIG. Like that. The pair of lid brackets 14 is formed by bulging the fitting ring 4 and having side walls of the bulging portion.

The clamp 12 with a hook has a pair of arms 16 and 16 whose bases are rotatably supported, and a hook 17 with a T-shaped cross section connecting the ends of these arms 16.
And is composed of The T-shaped horizontal portion 18 of the hook 17 substantially coincides with the outer edge of the arm 16, and the lower surface 19A of the T-shaped vertical portion 19 is locked to the main body side locking piece 13. I have.

As shown in FIG. 5, the lower one surface 19A is provided with the lid 3 leaning against the side surface of the garbage container main body 1 and the hooked clamp 12 being swung upward. The main body 1 is hooked on a step portion 20 provided inside the peripheral portion 2.

Now, the caster 10 will be described in detail. Mainly in FIG. 2, FIG. 6, FIG. 7 and FIG. 8, recesses viewed from the outside are formed in the corners at the four corners on the lower surface of the bottom wall 8 of the garbage container main body 1, and these four corner recesses 27 are formed. Are provided with the following casters 10, respectively.
One of them will be described.

The caster 10 is a thick plastic mounting plate (corresponding to a gusset stay or a gusset plate) for covering and fixing the corner recess 27.
21 is attached. If the thickness of the garbage container main body 1 is 3 mm, the mounting plate 21 is thicker than this, for example, 8 m.
m. The mounting plate 21 is formed in a fan shape, and is covered and fixed to the fan-shaped corner recess 27.

As shown in FIG. 8, on the upper surface of the mounting plate 21, a mounting plate-side outer peripheral edge wall 22A is provided upright on the entire peripheral edge thereof.
And a mounting plate-side fitting peripheral wall 22 that is provided inside the mounting plate-side outer peripheral wall 22A so as to partially overlap with the mounting plate-side outer wall 22 and that is taller and has a triangular shape in plan view. And a nut enclosure 23 which is provided at the center of the inside and is at the same height as the mounting plate side fitting peripheral wall 22, and is provided on both sides of the nut enclosure 23 inside the mounting plate side fitting peripheral wall 22, and the nut enclosure is provided. Two bolt enclosures 24 shorter than 23 are integrally molded upward. These nut enclosures 23
A through hole 35 for a caster-mounting shaft and a through hole 36 for a push bolt are opened in the center of the bolt enclosure 24, respectively.

Incidentally, the mounting plate side fitting peripheral wall 22 and the nut enclosure 23 or the bolt enclosure 24 can be easily and precisely molded in the same manner as a general projecting rib at the time of injection molding, and these are connected to each other. Are connected by ribs 25, 25, and are reinforced so that they do not expand or deform.

Then, SUS is placed in the nut enclosure 23.
A hexagonal nut 26 is fixed with an adhesive (there is a plastic nut, but a metal nut is preferable for firm screwing with the metal caster mounting shaft 31). Alternatively, the nut 26 is firmly pushed and fixed by using the resin elasticity of the nut enclosure 23 so as not to rotate. Of course, the nut 26 may be insert-molded.

On the other hand, on the lower surface of the corner recess 27, as shown in FIGS. 6 and 7, a recess forming wall 28A in which the mounting plate side fitting peripheral wall 22 is fitted and a main body leg wall 28B are formed. I have. The tip of the main body leg wall 28B coincides with the lower end of the trash container main body 1.

Further, on the lower surface of the corner concave portion 27, a short cylindrical bolted hole 2 having a bottom and facing the bolt enclosure 24.
9 are integrally formed, and the nut enclosure 2
A short cylindrical guide rib 37 into which the outer sleeve 3 is fitted is integrally formed.

A portion of the reinforcing rib 8A provided on the lower surface of the bottom wall 8 is also extended near the lower surface of the corner concave portion 27, and the outer peripheral wall 22A on the mounting plate side is also fitted into the reinforcing rib 8A. It is supposed to be.

The mounting plate 21 and the corner recess 27 as described above.
Therefore, the mounting plate 21 is formed in the corner recess 27.
In order to cover and fix the outer peripheral wall 22A, the mounting plate side outer peripheral wall 22A and the mounting plate side fitting peripheral wall 22 are fitted inside the main body leg wall 28B of the corner concave portion 27, the concave portion forming wall 28A and the reinforcing rib 8A, respectively. Nut enclosure 2 on short cylindrical guide rib 37
3 is externally fitted. A caster mounting shaft 31 erected on the caster 10 is screwed in advance to a nut 26 of the mounting plate 21.

Then, a plastic push bolt 30 having multi-staged elastic small teeth (for example, one-way sawtooth shape) is pressed into the bolt push hole 29 through the push bolt through hole 36. As a result, the elastic small teeth prevent the pull-out, and the push-in bolt 30 is fixed to the bolt push-in hole 30 while its shaft portion is held by the bolt enclosure 24, so that the push-in bolt 30 is securely fixed without using a tightening nut. .

Of course, the caster 10 may be screwed after the mounting plate 21 is fixed to the corner recess 27.

As the caster 10, an inexpensive caster mass-produced and commercially available is used. That is, the position of the support shaft 33 of the caster wheel 32 and the position of the caster 10
The support shaft 33 is supported by a metal caster bracket 34, and the caster bracket 34 is rotatably mounted on the caster mounting shaft 31. It has a structure that is.

Next, a case where the legs are formed of the sliding plate 11 will be described. In FIG. 11, FIG. 12 and FIG.
The difference from the mounting plate 21 shown in FIG. 8 is that the caster-mounting shaft through-hole 35 is not opened and the nut 26
Is not used. By providing the sliding plate 11, the trash container main body 1 can be easily moved and the bottom wall 8 can be moved.
Copy of the corner (with the effect of gusset stay)
It can be reinforced.

The refuse container main body 1 itself is used for both the slide plate 11 and the caster 10, so that a molding die for injection-molding the container can be used in common.

The present invention can be applied not only to plastic waste containers, but also to general plastic large containers having an upper opening. Further, in order to cover and fix the mounting plate 21 to the corner concave portion 27, the mounting plate 21 is not necessarily limited to the plastic push bolt 30 having a large number of small elastic teeth, but may be fixed by an adhesive. At this time, the depth of the corner concave portion 27 is set to a depth that can accommodate at least the nut 26.

[0037]

According to the first aspect of the present invention, in a large plastic container, a nut is provided between a concave portion of a bottom wall and a mounting plate covering the concave portion, and a caster mounting shaft is screwed to the nut. Therefore, the caster mounting structure is strengthened by the concave portion and the mounting plate to increase the durability by utilizing the concave portion which is easy in plastic molding, and the caster is provided on the bottom wall.
Since the mounting shaft hole is not opened, there is no leakage of liquid such as sewage, and mass-produced inexpensive casters screwed to the nut can be used. Further, in the case where the caster is not mounted, if a thick sliding plate is fixed instead of the mounting plate, the container body can be shared, mass production can be achieved, and the production cost can be reduced.

According to the second aspect, in addition to the above, the mounting plate is fixed by the pushing bolt having the multi-stage elastic small teeth.
There is no need to open the mounting plate bolt holes in the container bottom wall.

According to the third aspect, in addition to the above, the container body can be reinforced while performing the function of the leg by the mounting plate.

[Brief description of the drawings]

FIG. 1 is a partially cut front view of an embodiment of the present invention.

2 is a plan view of FIG. 1 on the left side with respect to a center line b, and a bottom view of FIG. 1 is a right side.

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

FIG. 4 is a detailed view of a main part of FIG. 1;

FIG. 5 is an explanatory diagram of FIG.

FIG. 6 is a detailed view of the caster of FIG. 1;

7 is a detailed view of the bolt of FIG. 1 and is a cross-sectional view taken along the line BB of FIG. 8;

FIG. 8 is a plan view of a main part of FIG. 6;

FIG. 9 is a sectional view taken along the line AA of FIG. 8;

FIG. 10 is a bottom view of FIG. 8;

FIG. 11 is a main part view of another embodiment of FIG. 1;

FIG. 12 is a plan view of a main part of FIG. 11;

13 is a sectional view taken along the line CC of FIG. 12;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Garbage container main body, 8 ... Bottom wall, 10 ... Caster, 21
... Mounting plate, 24 ... Bolt enclosure, 26 ... Nut, 27 ... Corner concave part, 29 ... Bolt push-in hole, 30 ... Push bolt, 31 ... Caster mount shaft

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 49-76479 (JP, U) JP-A 6-53205 (JP, U) JP-A 57-200402 (JP, U) JP-A 59-76 81602 (JP, U) JP 5-93907 (JP, U) JP 51-80707 (JP, U) JP 50-22929 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65F 1/14 B60B 33/02

Claims (3)

(57) [Claims] 1. A large plastic trash container provided with a plurality of casters on the bottom surface of a bottom wall, wherein the bottom wall to which the casters are attached has a concave portion viewed from the outside.
While forming (27), the thickness of the container is larger than the thickness of the container.
On the upper surface of the plastic mounting plate (21), the mounting plate side
A wall (22) and an inner wall (22) provided on the mounting plate side fitting peripheral wall (22).
Shoot the girder nut enclosure (23) upwards, respectively.
The metal nut (2) is formed in the nut enclosure (23).
6) and fix the mounting plate side fitting peripheral wall (22)
Connection to the socket (23) so as not to expand or deform
Rib (25), and the lower surface of the concave portion (27) is provided with the mounting plate side fitting peripheral wall (2).
2) forming a recess forming wall (28A) in which the recess is formed;
The mounting plate side fitting peripheral wall (22) is formed on the forming wall (28A).
The fitting plate is inserted into the concave portion (27).
(21) is covered and fixed, and a metal caster mounting shaft erected on an inexpensive caster mass-produced and commercially available is screwed to the nut (26) via the mounting plate (21). And accumulated inside the bottom wall
Strengthen caster mounting structure while preventing leakage of sewage, etc.
To increase the durability and to replace the mounting plate (21).
In addition, a sliding plate (11) is used to easily move the trash container.
Caster characterized in that it can be
Large plastic trash container. To wherein said recess bottom surface, and integrally molded a plurality of bottomed short cylindrical bolt pushing holes in the bolt pushing holes, the plastic push bolt with multi-stage elastic teeth, through the mounting plate The caster-mounted large plastic according to claim 1 , wherein the mounting plate is fixed to the recess by press-fitting.
Garbage container. 3. The large plastic trash container with a sliding plate according to claim 1, wherein the mounting plate from which the nuts and casters are omitted is a thick sliding plate.