NL2032585B1 - Waste container with a lifting and tilting device for waste bins - Google Patents

Abstract

The invention relates to a waste container (1) with a loading opening and a lifting and tilting device (10) for lifting and tilting and thus emptying a waste bin (15) into 5 the loading opening, wherein the loading opening can be closed by a loading flap (6) and wherein the loading flap (6) is coupled to a lever (13) of the lifting and tilting device (10) via at least one push rod (20), in order to swing open the loading flap (6) automatically when the lifting and tilting device is actuated, the push rod (20) has at least two sections (21, 23) in its longitudinal direction which can be pivoted 10 and/or linearly shifted relative to each other, wherein the pivoting or shifting can be locked in an extended state of the push rod (20). (Figure 2)

Description

Waste container with a lifting and tilting device for waste bins

The invention relates to a waste container with a lifting and tilting device for waste bins. The lifting and tilting device serves for lifting and tilting and thus emptying the waste bin into a loading opening of the waste container. The load- ing opening can be closed by a loading flap, the loading flap being coupled to the lifting and tilting device via at least one push rod in order to swing it open automatically when the lifting and tilting device is actuated.

Such waste containers are set up, for example, on an industrial site, in a busi- ness park or in a waste yard in order to pick up waste from waste bins and store it temporarily. Often, the waste containers are equipped with an integrated compacting device in order to utilize the pick-up volume they provide as effec- tively as possible. In order to be able to empty the waste bins, which are usually equipped with rollers and pushed towards the waste container, the latter has the aforementioned lifting and tilting device, which grips the waste bin with lift- ing arms, lifts it and tips it out over a loading opening. Once the waste container is full, the waste container with the attached lifting and tilting device can be picked up onto a transport vehicle and driven to a landfill or to a transfer station for emptying.

The loading opening of the waste container is usually closed by a loading flap which can be swung upwards. In order to open this loading flap automatically, the use of a removable push rod is known, which couples the lifting and tilting device with the loading flap, so that the loading flap is swung open with the lift- ing of a waste container.

For transporting the waste container, the loading flap must be closed and the lifting and tilting device must be swung up so as not to interfere with loading the waste container onto the transport vehicle and during transport. For this pur- pose, the push rod is dismounted and stowed away. Accordingly, after the waste container has been emptied and put back in place, the push rod must be mounted again. When mounting the push rod, securing elements, such as se- curing cotter pins or similar, are also used to ensure safe movement of the loading flap by the push rod. Regularly mounting and dismounting of the push rod is time-consuming and labor-intensive, and involves the risk that intended and important securing elements are not used correctly, especially if the re- quired care is diminished by repeated mounting.

It is the object of the present invention to provide a waste container of the type mentioned above, in which the loading flap opens and closes automatically when waste bins are emptied into the waste container, and in which the effort required for dismounting and mounting the push rod during transport of the waste container is eliminated.

This object is solved by a waste container having the features of the independ- ent claim. Advantageous embodiments and further developments are subject of the dependent claims.

A waste container of the type mentioned at the outset according to the inven- tion is characterized by the fact that the push rod has at least two sections in its longitudinal direction which can be pivoted and/or linearly shifted relative to each other, wherein the pivoting or shifting can be locked in an extended state of the push rod.

Such a push rod can be used in two operating states: On the one hand, the sections can be locked such that they are fixed with respect to each other so that the push rod is extended like a single, one-piece push rod known in the prior art, and transmits a pivoting movement of the lifting and tilting device to the loading flap to open it automatically when a waste bin is lifted for emptying into the waste container. On the other hand, in an operating state in which the locking is not enabled and the two sections of the push rod are displaceable or pivotable relative to each other, the push rod can remain mounted on the waste container for transporting it, allowing the lifting and tilting device to be pivoted up without this resulting in the loading flap being opened. In this way, the waste container can be transported without having to dismount the push rod. Mount- ing and dismounting of the push rod for transporting the waste container on a regular basis is no longer necessary, which reduces the amount of work and prevents the intended and important securing elements from being used incor- rectly or from being lost.

A push rod with at least two sections that can be pivoted relative to one another can be implemented, for example, by a hinge between two sections of the push rod. In this case, a locking device is preferably provided which blocks the hinge in a stretched state of the push rod so that it is suitable for lifting the loading flap. The locking device can preferably be self-locking, whereby the locked state is safely assumed as soon as the push rod is stretched once.

An embodiment in which the at least two sections of the push rod can be line- arly shifted relative to one another can be implemented, for example, by at least one of the sections being formed as a tube into which another of the sections is inserted. The sections can also be guided past one another laterally, for exam- ple by having profiled sections engaging in one another on one outer side in each case.

In the variant in which sections are displaceable relative to one another, a lock- ing device is provided in order to be able to use the push rod in the locked state for lifting the loading flap, whereas in the unlocked state it can remain mounted during transport of the waste container.

In both cases, it can be provided that the push rod is removable. Advanta- geously, the mounting method of the push rod according to the application with the sections on the waste container that can be pivoted and/or moved relative to each other can correspond to the mounting method of the known one-piece push rod. In this way, already existing waste containers can be easily retrofit- ted.

The invention is explained in more detail below by means of an example of an embodiment with the aid of figures. The figures show:

Figure 1 an isometric general view of a waste container with a lowered lifting and tilting device;

Figure 2 the waste container from Figure 1 with a waste bin lifted by the lifting and tilting device and with the loading flap open;

Figure 3 the waste container of Figures 1 and 2 with the lifting and tilting de- vice in a transport position;

Figure 4 a detailed isometric view of a push rod; and

Figure 5 a side view of a section of the waste container according to Figures 1-3 with the lifting and tilting device in various positions.

The figures show an embodiment of a waste container 1 according to the inven- tion, partly in detailed representation of its components. In all figures, the same reference signs indicate the same elements.

The waste container 1 has a vessel 2 which is closed at its rear end, shown on the right side in Figures 1-3, by an unloading flap 3. At the longitudinally oppo- site front end, a loading section 4 is formed which is slanted towards the front so that a front end wall 5 of the waste container 1 is lower than the vessel 2 or the unloading flap 3.

A loading flap 6, which can be swung open upwards and is shown in its closed state in Figure 1, is arranged above the loading opening of loading section 4.

The waste container 1 is designed as a transportable container and has transport rollers 8 at its rear end and a pick-up bracket 9 at the front end wall 5.

The waste container 1 can be lifted by an appropriate transport vehicle with a slewing crane at this pick-up bracket 9 and pulled onto a loading area. A filled waste container 1 can thus be driven to a landfill or waste collection point for unloading.

For loading the waste container 1, a lifting and tilting device 10 is arranged on the front end wall 5. This provides lifting arms 11 and a support plate 12 in or- der to be able to grip, lift and tilt a waste bin 15 and thereby empty it into the loading opening of the loading section 4.

This process is illustrated in Figure 2. There, a waste bin 15 lifted by the lifting and tilting device 10 is shown in the tilted position. In the example shown, hy- draulic cylinders 14 are provided to drive the lifting and tilting device 10.

In order to automatically open the loading flap 6 when the lifting and tilting de- vice 10 is pivoted or the waste bin 15 is lifted and tilted, push rods 20 are pro- vided which couple the loading flap 6 to the lifting and tilting device 10. In the present case, two push rods 20 are provided, which are used on both sides, i.e. on the right and the left side of the waste container 1. Especially for narrower waste containers 1, it is also conceivable to use only one push rod 20. On the lifting and tilting device 10, the push rods 20 are each hinged to a lever 13, which runs approximately parallel to the lifting arms 11 and is pivoted with them. On the loading flap 6, the push rods 20 are each mounted on tabs 7 which are attached to the edge of the loading flap 6 specifically for this purpose or for the purpose of locking the loading flap 6.

In contrast to what is known from the prior art, according to the invention the push rod 20 can be folded in approximately centrally in the embodiment exam- ple shown, as a result of which a pivoting movement of the lifting and tilting de- vice 10 is optionally not transmitted to the loading flap 6. For this purpose, the push rod 20 has a hinge 25 which is stretched and locked in the operating state of Figures 1 and 2. In the operating state of figure 3, the locking of the hinge 25 is released into the stretched position and the push rod 20 can buckle. The lift- ing and tilting device 10 can be swung up without the loading flap 6 opening.

In the position of the lifting and tilting device 10 shown in Figure 3, the pick-up bracket 9 is accessible and the waste container 1 can be pulled onto a transport vehicle and transported. The transport is possible without having to dismount the push rod 20.

The push rod 20 is shown enlarged separately from the waste container 1 in

Figure 4 to show it in more detail.

In this embodiment, the push rod 20 has two sections 21 and 23 that can be pivoted relative to one another and are connected to one another via the hinge 25. Eyelets 22, 24 are formed at the free ends of the sections 21, 23, at section 21 as an elongated hole eyelet and at section 23 as a round hole eyelet. The slotted eyelet compensates for possible tolerances in the lowered position of the lifting and tilting device 10. This eyelet 22, 24 is used to couple the push rod 20 to the lifting and tilting device 10 on the one hand and to the loading flap 6 on the other. A screw or bolt with a corresponding securing element can be passed through the eyelets 22, 24.

In the present case, the hinge 25 is formed by a bolt 26 which passes through the sections 21, 23, each of which is formed as a U-shaped profile. The parting 23 protrudes above the bolt 26 in order to rest against the section 21 in the stretched state and to be able to absorb acting buckling forces in the stretched state. In this regard, the hinge 25 may be formed as a toggle joint and allow for slight over-extension so that thrust forces acting on the push rod 20 hold the hinge 25 in the closed position.

Further, a locking device 27 is provided by which the push rod 20 is fixed in the extended position. In the present case, the locking device 27 consists of an an- gled leaf spring which engages when the push rod 20 assumes the stretched position and which must be actively pushed away by the user in order to be able to bring the push rod 20 into the angled position shown in Figure 4. In an alternative embodiment, for example, instead of the leaf spring, a locking pin can be used which is inserted through corresponding holes in the area where the sections 21, 23 overlap in order to fix the hinge 25.

Figure 5 illustrates the movement sequence when the lifting and tilting device 10 is swiveled up to assume the transport position of the waste container 1 in a schematic diagram. Only the loading section 4 of the waste container 1 is shown.

An initial position of the lifting and tilting device 10 is shown with solid lines, whereas two tilting positions are drawn with dashed lines. The two positions shown in dashed lines illustrate the angling of the push rod 20 in the hinge 25 that takes place when the lifting and tilting device 10 is swiveled up, by means of which the lifting and tilting device 10 can be brought into the transport posi- tion without the loading flap 6 opening.

Reference sign 1 waste container 2 vessel 3 unloading flap

4 loading section 5 end wall 6 loading flap 7 tab

8 transport roller 9 mounting bracket 10 lifting and tilting device 11 lifting arms 12 support plate

13 lever 14 hydraulic cylinder 15 waste bin push rod

20 21 (lower) section 22 eyelet (oblong hole) 23 (upper) section 24 eyelet hinge

25 26 bolt 27 locking device

Claims (9)

CONCLUSIONS 1. Waste container (1) with a loading opening and a lifting and tilting device (10) for lifting and tilting and thus emptying a waste container (15) into the loading opening. In which the loading opening can be closed by a loading ramp (6) and in which the loading ramp (8) is coupled via at least one push rod (20) to a lever (13) of the lifting and tilting device (10) in order to swing open the loading ramp automatically when the lifting and tilting device is operated, characterized in that the push rod (20) has in its longitudinal direction at least two sections (21,23) which can be rotated and/or linearly shifted relative to each other, the rotation or shifting being can be locked in an extended position of the push rod (20). The waste container (1) according to claim 1, wherein the at least two sections (21,23) of the at least one push rod (20) are rotatably connected to each other by means of a hinge (25). Waste container (1) according to claim 2, wherein the hinge (25) can be locked in the extended position of the push bar (20) by means of a locking device (27). A waste container (1) according to claim 3, wherein the locking device (27) is designed to lock in the extended position of the push bar (20). The waste container (1) according to claim 3 or 4, wherein the locking device (27) comprises an angular leaf spring attached to one of the sections (21,23) and having a free end that extends over another of the sections (21). ,23) grabs. The waste container (1) according to claim 2, wherein the locking device (27) comprises a locking pin inserted into bores formed in an overlapping portion of the sections (21,23). A waste container (1) according to any one of claims 2-6, wherein the hinge (25) forms an over-extensible knee joint. A waste container according to any one of claims 1-7, wherein at least two of the sections (21,23) of the push rod (20) are guided in a longitudinally opposite or mutually movable manner, so that the at least one push rod (20) has a telescopic movement. can perform. A waste container (1) according to any one of claims 1-8, wherein the at least one push bar (20) is removable.