JPH10157802A - Waste material container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly move a container main body without inclining it at manually moving time by providing a main wheel in a container main body bottom part on the side wall side where a handle bar is arranged, and providing an auxiliary wheel in the container main body bottom part on the side wall side where a rock bar is arranged. SOLUTION: A metallic rock part 224 which is fitted to a container main body 201 and can be emptied by a lifting device and extends in the horizontal direction, is arranged on a front wall. A cover 207 is installed on a handle bar by a hinge means, and the hinge means contains first and second hinges extending outward direction from the rear side of the cover 207. A caster wheel 270 as an auxiliary wheel is installed on a bottom wall of the container main body 201 so as to be made adjacent to the front wall. That is, in a container 200, the caster wheel 270 enables the container main body 201 to be rolled without inclining the container main body 201 to its main wheel 227 or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a waste container.

[0002]

2. Description of the Related Art Blow molding is an example of a method for molding a large container made of a thermoplastic material. This blow molding
It offers a number of important advantages over other molding methods, such as injection molding. Blow molding allows for a smaller wall thickness for a given sized container. Therefore,
Blown containers generally require less raw material to manufacture than using other methods. This reduces raw material and energy requirements. A thinner wall thickness also results in a lighter container that is easier to rotate and lift, either manually or by a lifting device.

[0003] However, no matter how much the container is lightened,
When contents such as trash enter the container, the whole weight becomes considerable, and it is not easy to move the container by hand.

Therefore, as shown in FIG. 20, a wheel 5 having an axle parallel to the handle bar 4 is provided at the bottom of the container body on the side wall where the handle bar 4 of the container body 2 is provided. While holding the container body 2 slightly to the handlebar 4 side to apply the load of the entire container 1 to the wheels 5, the handlebar 4 can be easily moved by pushing or pulling,
When the container body 2 is full of contents near the mouth, the center of gravity is at the top, and when the container body 2 is tilted to move the container 1, a considerable load is applied to the handlebar 4 and the container 1 There is a problem that it takes a considerable amount of force to support and the balance when moving becomes very poor. In FIG. 20, reference numeral 3 denotes a lid.

[0005]

SUMMARY OF THE INVENTION In view of such circumstances, the present invention provides a waste container which can be manually moved more easily even if the contents such as trash are full. The purpose is.

[0006]

In order to achieve the above object, a waste container according to the present invention comprises a lightweight container body having a bottom wall and a side wall integrally formed of synthetic resin and having a mouth at an upper part; A lock bar provided along the outer surface of one side wall of the container body and locked by a lifting device, and provided along an upper edge of the side wall facing the side wall on which the lock bar is provided of the container body. A waste container provided with a handlebar, a main wheel having an axle parallel to the handlebar at the bottom of the container body on the side wall provided with the handlebar, and a bottom portion of the container body on the side wall provided with the lock bar. It was configured to have auxiliary wheels.

In the waste container of the present invention, the auxiliary wheels may be of a fixed type having an axle parallel to the main wheels, or may be of a type having a freely rotating shaft such as a caster. Further, the number of auxiliary wheels may be one, or a plurality of auxiliary wheels may be provided. The term "waste container" is used in this application to refer to recyclable items such as garbage, garbage, paper, bottles, cans, medical disposable containers,
Used broadly to refer to a container useful for receiving laundry or other bulk items or products.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. 1 to 4 show one embodiment of a waste container according to the present invention.

As shown in FIG. 1 to FIG.
Is blow molded to optimize raw materials from medium to high density polyethylene with a nominal wall thickness of 140 inches (.355 cm.) And to make lightweight and strong containers, 202, opposing side walls 203 and 204, rear wall 205 and front wall 206
And a container body 201 integrally formed. The volume enclosed by the container body 201 is sufficient to hold about 70 gallons (265 liters). As illustrated, the walls 203-206 are provided with relief areas that provide stiffness to relatively thin walls.

[0010] It should be noted that the blow molding process generally involves a hollow, tubular molded thermoplastic "parison".
This is carried out by extruding a preform called an inside of an open mold from an extrusion machine. The mold wall is then closed and a gas such as air is blown into the mold and preform. The expansion of the gas under pressure causes the preform to expand and move outwardly against the interior walls of the mold. The shape of the inner wall of the mold defines the shape of the product to be molded, and the thickness of the product can be controlled by controlling the shape and dimensions of the parison. As explained below, the protrusions, which can be inside or outside the container body of the product being molded, add strength and rigidity to the product. Material wall thickness and distribution throughout the product is controlled by extrusion nozzle design.

The walls 203-206 terminate and form the mouth of the container body 201 which is covered by the hinged lid 3 of the pivot. Handle supports 208 and 209 are attached to wall 203
To the container body 201 adjacent to the upper end of the container 206. These handle supports 208 and 209 are also blow molded and integrally formed with the container body 201 and are formed integrally with the container body 201 at the same time. Handle supports 208 and 209 support a laterally extending and integrally molded cylindrical handlebar 220 that is also blow molded.

As shown in FIGS. 5 and 6, the mouth of the container body 201 is blow molded and an upwardly extending rim providing a means for accurately positioning the lid 207 on the top of the container body 201. 230. The rims 230 are part of and lie on the plane of each wall of the container body 201.

As shown in FIG. 5, the reinforcing lip 231 is
It extends laterally outward from a position directly below the rim 230. The reinforcing lip 231 is compression molded at the same time as the blow molding of the container body 201 is performed. The auxiliary molding material of the blow molding apparatus is integrated at exactly the right time to capture a sufficient amount of molten plastic to form the lip 231. These auxiliary molding materials compress the plastic so captured into a solid, rigid mass as shown in FIG.

The front wall 206 of the container body 201 has a laterally extending metal which is fitted to the container body 201 and which can be emptied by a lifting device, as shown in FIGS. Lock bar 224 is provided.

[0015] As shown in FIG.
It is formed integrally with the front wall 206 of the container body 201. The recess 290 extends inwardly and upwardly toward the mouth of the container body 201 and the lock bar 22 when the container 200 is lifted by the lifting device.
Work with 4. The container 200 is thus locked onto the cart engaging plate of the lifting device, allowing the container body 201 to be fixedly lifted and inverted.

As generally shown in FIGS. 5 and 6,
Lid 207 is attached to handlebar 220 by hinge means, which include first and second hinges 221 and 222 extending outwardly from the rear side of lid 207. As also shown, the large dimension of the container body 201 is the handlebar 2 between the hinges 221 and 222.
Increase the span of 20. For this reason, the integrally formed support web 229 extends outwardly from the rear wall 205 of the container body 201 and is attached to the handlebar 220 midway between its ends, otherwise the handlebar 220 Prevents bending of handlebar 220, which can result from extreme center loads. Hinges 221 and 222 are
7 and extend itself to and provide reinforcement to the lid 207, as particularly shown in FIG.

Also, as shown in FIGS. 7-11, the lid 207 is blow molded and provided with double panel walls 235 and 236. Panel wall 235 includes an outer panel wall 235 and faces away upward from container body 201 when lid 207 is closed. See FIGS. 10 and 11. Panel wall 236 includes an interior panel wall 236 that faces downwardly into container body 201 when lid 207 is closed. See FIG. 7, FIG. 8 and FIG. As shown in FIG. 8, two panel walls 23
5 and 236 define between them a space that varies in a regular pattern over the area of the lid 207.

As shown in FIG. 7, the inner panel wall 23
6 can be cut out to form an access opening through the lid 207, or can be used to accept custom indicia such as usage instructions, manufacturer or owner information, etc. Possible generally rectangular area 2
37.

An elongated slot-shaped relief area 238 extends across lid 207. When cut out, the relief area 238 forms a slot 239 through which a sheet material such as paper can be placed in the container body 201 without opening the lid 207, as shown in FIG.
The frame 240 is placed around the slot 239, exposing the raw edges and the outer panel wall 235 and the inner panel wall 236 that remain when the plastic material of the lid 207 is cut off to form the slot 239. Surround the space. Frame 240 is secured to lid 207 by a suitable fastener, such as a rivet or snap fastener.

A pair of annular relief areas 242 and 243
Are placed concentrically on the lid 207. See FIG. When cut out, as shown in FIG. 9, the annular relief area 242 allows objects such as bottles, cans or anything else of a suitable size to be placed in the container body 201 without opening the lid 207. Possible hole 2
44 is formed. As shown in FIG.
45 is placed around hole 244 and is left when the raw edge and lid plastic material are cut off to form hole 244. It surrounds the exposed space between the outer panel wall 235 and the inner panel wall 236. Frame 245
Is secured to lid 207 by a suitable fastener, such as a rivet or snap fastener. Frame 245 suitably includes a rubber or plastic flap 246 having a pair of intersecting slits 247 that allow an object to be placed in container body 201 through an otherwise substantially closed opening. It is possible.

The hinges 221 and 222 are attached to the handlebar 220 as follows.

That is, as shown in FIG.
1 and 222 are formed from hinged pawls 248 and 249, respectively, defining an annular opening 250 therebetween. Meanwhile, handlebar 220 includes a pair of enlarged diameter hinge receiving areas 251 and 252 on both ends of handlebar 220 and a centrally located gripping area 253 between hinge receiving areas 251 and 252. Hinge receiving areas 251 and 252 are hinges 221 and 222, respectively.
Sized to be received in the opening 250 of

Claws 248 and 24 of hinges 221 and 222
9 is somewhat limited, so that hinge 2
21 and 222 are hinge receiving areas 251 and 252
Must be snapped on. this is,
12, placing the hinges 221 and 222 directly above the respective hinge receiving areas 251 and 252 and pressing the hinge claws 248 and 249 of the hinges 221 and 222 onto the hinge receiving areas 251 and 252. Can be performed by Once hinges 221 and 222 are in place, lid 207 can be opened and closed, and lid 207 pivots about an axis defined by handlebar 220.

Another method of attaching the cover 207 to the container body 201 is illustrated in FIG. The grip area 253 includes hinge claws 248 and 249 of hinges 221 and 222.
Are reduced in diameter so that they fit down onto the grip area 253 without snapping them in place. The lid 207 grips the hinge 222 on the handlebar 220 over the area 253 and then the hinge 222
Can be mounted more quickly and with less force by sliding over the hinge receiving area 252.
This positions hinge 221 directly above hinge receiving area 251. As such, hinge 221 is forced downwardly on hinge receiving area 251 as described above. Thus, only one hinge need be placed on handlebar 220 by applying force.

As shown in FIG. 14, the bottom of rear wall 205 is axle 2 to which main wheels 227 and 228 are attached.
26 includes an integrally formed axle journal 225 for receiving the same. As shown in FIGS. 14 and 15, the axle journal 225 defines an opening to accommodate the diameter of the axle 226, but the space for access is limited so that the axle 226 snaps into the opening. Must be stopped.

The feature of the axle 226 and the main wheel 22
Ensure secure mounting of 7 and 228 to container. The angle of reflection, that is, the degree of arc accommodated by the container body 201 of the container 200 is about 250-26.
0 degrees. This is shown in FIG.

As shown in FIGS. 1, 2, 4 and 16, a caster wheel 270 as an auxiliary wheel is attached to the bottom wall 202 of the container body 201 adjacent to the front wall 206. That is, this container 200
The caster wheels 270 can enable the container body 201 to be rolled without tilting the container body 201 relative to its main wheels 227,228.

The lip 231 of the front wall 206 is
As shown in FIG. 7, a step is made downward away from the mouth of the container body 201 to form a hand approaching area 232,
As a result, the hand can be extended up under the lid 207 to open the lid.

On the other hand, as shown in FIG. 18, the hinge may include a pair of opposing semi-circular recesses 260 and 261 molded into hinge pawls 248 and 249. As shown in FIG. 19, the handlebar 220 is
After snap-fitting to the hinge 50, the plastic strap 264 connects to the hinge-receiving area 151
Is fitted in place on the exposed side of the. Strap 264 has holes 2 in respective hinge claws 248 and 249
It is held in place by a pair of rivets or snap fasteners 265 fitted to 66. The use of plastic straps is optional, depending on use requirements.

The waste container according to the present invention is not limited to the above embodiment. The above embodiments are intended to illustrate the best mode for carrying out the present invention, and are not provided for the purpose of limiting the present invention, and the present invention is defined by the appended claims. Is done.

For example, in the above embodiment, the auxiliary wheels are caster wheels, but may be of a fixed type having an axle parallel to the axles of the main wheels. In the above embodiment, the container body is formed by blow molding, but may be formed by injection molding.

[0032]

As described above, the waste container according to the present invention is provided with auxiliary wheels in addition to the main wheels, so that the container body can be moved smoothly without tilting when manually moved. .

[Brief description of the drawings]

FIG. 1 is a front quarter perspective view of one embodiment of a waste container according to the present invention.

FIG. 2 is a side view of the waste container of FIG. 1;

FIG. 3 is a rear quarter perspective view of the waste container of FIG. 1;

FIG. 4 is a rear view of the waste container shown in FIG. 1;

FIG. 5 is a cutaway perspective view showing the hinge of the lid snap-fit onto the container handlebar.

FIG. 6 is a cutaway perspective view showing the hinge of the lid and the central support web snapped onto the container handlebar.

FIG. 7 is a plan view of the inside of the lid of the container according to the embodiment of the present invention.

FIG. 8 is a vertical sectional view of the lid of the container shown in FIG. 21.

FIG. 9 is a cutaway view of the lid shown in FIG. 21 showing a hole cut out to receive an object.

FIG. 10 shows a state in which the frame is fitted in the hole.
FIG. 4 is a perspective view of a lid shown in FIG.

FIG. 11 is a perspective view of the lid shown in FIG. 23 with the slot cut out and fitted with the frame.

FIG. 12 is an exploded exploded view showing the assembly of the lid on the handle.

FIG. 13 is an exploded cutaway view showing another assembly of the lid on the handle.

FIG. 14 is a cutaway perspective view showing the blow molded axle journal of the container.

FIG. 15 is a cutaway side view showing the wheel and the axle snap fitted to the axle journal.

FIG. 16 is an enlarged cutaway view of the caster wheel arrangement of FIG. 1;

FIG. 17 is an enlarged cut-away perspective view of the underside of the hinge showing the recesses for receiving the hinge pawls and the strap that locks the handlebar in place.

FIG. 18 is a cutaway perspective view showing the strap in place on a snap-fit hinge claw.

FIG. 19 is a cutaway perspective view of the mouth area of a container showing another example of a hollow integrally formed handle and a compression molded lip.

FIG. 20 is a side view of a conventional waste container.

[Explanation of symbols]

 200 Waste container 201 Container body 202 Bottom wall 203 Side wall 204 Side wall 205 Rear wall 206 Front wall 207 Lid 208 Handle support 209 Handle support 220 Handlebar 221 Hinge 222 Hinge 224 Lock bar 225 Axle journal 226 Axle 227 Main wheel 228 Main wheel 229 Support Web 230 Rim 231 Reinforcement lip 232 Hand access area 235 External panel wall 236 Internal panel wall 237 Rectangular area 238 Escape area 239 Slot 240 Frame 242 Annular escape area 243 Annular escape area 244 Hole 245 Frame 246 Flap 247 Slit 248 Claw 249 Claw 250 Opening 251 Hinge receiving area 252 Hinge receiving area 253 Grip area 260 Depression 261 Depression 264 Strap 265 Snack Fastener 266 holes 270 Caster wheel (auxiliary wheel) 290 recess

Claims (1)

[Claims] 1. A lightweight container body having a bottom wall and a side wall integrally formed of a synthetic resin and having a mouth at an upper portion, provided along an outer surface of one side wall of the container body, and locked by a lifting device. In a waste container including a lock bar and a handlebar provided along an upper edge of a side wall of the container body facing the side where the lock bar is provided, a waste container having a handlebar provided on a bottom of the container body on the side wall where the handlebar is provided. A waste container comprising: a main wheel having an axle parallel to a handlebar; and an auxiliary wheel provided at a bottom of the container body on a side wall provided with the lock bar.