EP0699602B1 - Pick-up device for refuse receptacles - Google Patents

Abstract

The device is for emptying refuse containers into a refuse collection vehicle. It incorporates an accommodation device (12) for the containers on the lift and tip mechanism of the collection vehicle. Several upwardly extending claws (14) are provided, between which are recesses (15) on the accommodation device for securing a pick-up strip with an open U-shaped profile standing away along a side wall on or near the opening edge of the refuse container. A lower support device is provided for the refuse container suspended on the accommodation device. The claw with a lower part (16) is fixed to the accommodation device and an upper part (44) of the claw is movably fitted to the lower part.

Description

TECHNICAL AREA

The invention relates to a device for emptying Garbage bins into a garbage collection vehicle. Such The device includes, for example, a receiving device on the lifting and tipping device of a refuse collection vehicle, those for picking up and transporting one or more also different sized containers in the refuse collection vehicle is trained into it. According to the respective different Position of the lifting and tipping device with respect to a Garbage collection vehicle are so-called rear, front or Sideloader distinguished. The cradle must each constructively adapted to empty garbage containers be. This means that the device next to the cradle accordingly adapted to the lifting and tipping device Containers on the garbage container must contain.

STATE OF THE ART

From DE-PS 21 46 653 is a device of the aforementioned Kind known. The cradle on the garbage truck arranged tilting device has several after claws protruding at the top and recesses in between, which are alternately attached to a mounting bar. This mounting strip engages in a cross-section from below essentially designed as a downwardly open U-profile strip Carrier bar. This take-out bar is on garbage containers to be emptied along a side wall on or protruding outwards near its opening edge. The Claws of the cradle can then take this bar underscore. There is a multitude on the mounting bar such claws available, so that different sizes Garbage bins in an unbound row on the receiving bar can be set and emptied.

From DE-PS 25 15 929 it is also known by Subdivide the mounting strip into two similar, side by side arranged mounting rails also larger waste containers to be emptied, which then on both mounting strips simultaneously attach. For emptying these larger garbage containers become the two recording strips and thus the two Tilting devices moved synchronously.

All of these known devices have the receiving devices next to the claws on which the container or containers can be attached, lower support devices to support the respective body hulls.

With these emptying devices, the claws are firmly attached to the Positioning device positioned. When immersing bottom up in the respective U-profile strip of the waste bin pull the garbage container towards you if the Garbage container with its U-profile strip not exactly above the claws should be positioned. Since the claws roughly plate-shaped, with approximately vertically oriented outer surfaces are formed, the lateral relative movement between Container and claw used to immerse the claw in the U-shaped profile should be required extremely low. Thereby is the load on the outer wall of the U-profile strip, when the claw is positioned off-center on the U-shaped profile can occur not very large.

Significantly larger loads in the form of a down open pocket-trained carry bar occur at the garbage containers known from EP-B1-235 784. This recording bag is the only way to hold the container on the cradle. As a result, the receiving bag be relatively large, which in turn means that only a single pocket on the front wall of the bin is available. This pocket must hold the container in hold all of its lift-and-tilt movements because of a lower support not available to support the container body is. The storage bag therefore does not only have to carry the load of the filled rubbish bin, but also the Endure shaking movements in the final phase of the tilt position. The receiving claw designed to be immersed in this bag is movably attached to a swivel arm of the receiving device. This allows the receiving claw to pass through from below corresponding more or less swing out respectively Extend the swivel arm so that it fits into the receiving pocket. When the receiving claw is loaded by the on it the garbage bin sits vertically downwards shifted and thereby fixed in their respective orientation. The claw itself has the shape of a parallel to aligned with the container wall carrying the receiving pocket isosceles, triangular plate, the top two Triangular edges on the side facing away from the waste container Form sloping gripping edges sloping towards the inside. The receiving pocket has corresponding undercuts Surface areas. These areas are in one reinforcing the edge area of the opening side of the waste container Profile provided. Due to the arrangement of a single bag on a garbage bin and omitting supporting devices supporting the container body is the one that acts on the edge of the bag in the bin Load both when emptying the container and already when immersing the pick-up claw in the Bag very high.

To avoid damage to such a pocket as possible to avoid it is known from DE-PS 37 03 034 the receiving pocket from several parallel to each other Assemble wall sections, these wall sections through struts, such as diamonds, with each other connected in the manner of a vault are.

PRESENTATION OF THE INVENTION

Based on this prior art, the Invention, the object of an improved device for emptying garbage containers with which the load on the carrier bar of the waste container as low as possible is, with a problem-free reception of garbage containers on the lifting and tipping device of a refuse collection vehicle should be possible.

This invention is given by the features of the main claim. Useful further training of this facility are the See subclaims. The device according to the invention includes constructive measures on the lifting and tipping device and requires one with its take-out bar accordingly customized garbage can.

The device according to the invention is based on that in the prior art Technically known, with several claws carrier bar and is characterized in that the individual Claw from a stationary attached to the cradle Lower part and a movably attached to the lower part Top is assembled. The top can be both towards the lower part as well as at right angles to it Move directions. The top can be in from the bottom distant positions relative to the base towards move freely towards and away from the container while it in its other minimally distant from the lower part extreme position relative to the lower part is not movable. There is only a single minimally distant position between Upper part and lower part available.

With this training, the claw can be said to be self-centering in the downward-open carrier bar of a garbage container be introduced. However, this will only be the case Upper part introduced self-centering. The lower part remains in its longitudinal axis, for example off-center position. This means that when the Claw the bottom of a carry bin in a garbage can Claw not positioned exactly below the carrier bar needs to be. It only has to be ensured that the Top reaches the mouth area of the driving bar. When pushing up the pick-up claw, the upper part can move in Direction towards the container or away from the container move so that it floats freely over the entire surface Take-in bar can dip. After the top is fully in the carrier bar is seated and therefore completely inside the carrier bar rests against their contact surfaces, further raising the claw the upper part towards the lower part emotional. The vertical distance between the top and bottom decreases and at the same time the upper part with its orientation in the vertical plane of the lower part moved laterally. This will also point the garbage bin in the direction to the lower part and thus in its predetermined for emptying Emptied position pulled. However, this pulling does not take place one only partially at the lower edge area, for example claw attacking the bag, but only in the Position in which the claw or its upper part Positioned over the entire surface in the storage bag of the waste container is. The container is thus drawn towards the receiving claw. This is also necessary because the container is in a predetermined Alignment to the tipping device, which is its distance from concerns the mounting strip, must be present. The side Alignment on the mounting bar can be variable, so as already known in the aforementioned DE-PS 21 46 653 is. The device according to the invention thus allows Gentle reception of waste containers to be emptied with a as it were self-centering recording device, wherein nevertheless, the exact alignment of the waste container with the lifting and tipping device during which the stroke-tilt movement is present.

The upper part can be transverse to the longitudinal extent of the receiving bar or also in the longitudinal direction of the receiving bar, i.e. at Tipping device positioned at the rear of the refuse collection vehicle in the transverse direction of the refuse collection vehicle, relative to Lower part can be designed to be movable. The pocket can therefore in the longitudinal direction of the drive bar as one essentially continuous groove may be formed or in the longitudinal direction with several pocket-like arranged in a row Be depressions. In both cases a system of rubbish bins offset along the receiving bar possible. This also allows different widths Waste bins can be attached to the mounting bar as required. In addition, a rubbish bin can be placed on the claws of two juxtaposed mounting strips can be attached. It is possible with all of these containers, the container only at an approximate distance from the mounting bar position and the claws of the mounting bar from below in the possibly not exactly aligned carrier bar driving the garbage can. In the known in the prior art, with multiple claws receiving bar this is practically only possible with a precisely aligned container. Therefore, the operator often also trashes the bin immediately attached to the pick-up claws to ensure that the garbage container is also exactly aligned with the receiving bar is.

Special designs of the device according to the invention are the features listed in the subclaims and the see the following embodiment.

BRIEF DESCRIPTION OF THE DRAWING

Fig. 1

zwei nebeneinander angeordnete, mit nach oben ragenden Klauen versehene Kammleisten von zwei Hub-Kippvorrichtungen eines Müllsammelfahrzeuges,

Fig. 2

einen Querschnitt durch eine Klaue entlang der Linie 2-2 von Fig. 1, mit einer Klaue, deren Oberteil sich in einer ersten extremen Stellung befindet, und

Fig. 3

eine Darstellung gemäß Fig. 2, bei der das Oberteil der Klaue sich in einer anderen extremen Stellung befindet.

The invention is described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:

Fig. 1

two comb strips of two lifting and tipping devices of a refuse collection vehicle arranged side by side and provided with claws projecting upwards,

Fig. 2

a cross-section through a claw along the line 2-2 of Fig. 1, with a claw, the upper part is in a first extreme position, and

Fig. 3

a representation of FIG. 2, in which the upper part of the claw is in another extreme position.

WAYS OF CARRYING OUT THE INVENTION

Of two existing side by side on a garbage collection vehicle Recording devices 10 are the comb strips 12 are schematic shown in Fig. 1. Collar 12 from each comb bar her teeth referred to below as claws 14 upwards out. Recesses 15 are provided between adjacent claws 14 the comb strip 12 is formed. On two or more of these Claws 14 are the garbage container to be emptied with hung up on his take-out bar. Except the comb strip 12 is a lower support on the receiving device 10 with which the garbage container hanging on the comb bar 12 is supported in its lower area.

Each claw 14 consists of a fixedly attached to the comb strip 12 Lower part 16. The lower part has an upward side cantilevered support walls 20, 22 which taper upwards Cross-section and in this context one after inner wall 24 running obliquely outwards on each Have support wall 20, 22. The inner walls 24 are through at the bottom a flat base surface 26 with one another in the present case connected.

In the base 26 there is a tapering downwards Breakthrough 28 available. This breakthrough ends in one Incision 30 forming a recessed shoulder 32. The shoulder 32 forms a support surface for the over a nut 34 washer attached to a bolt 36 38. The bolt 36 protrudes upward through the opening 28 and lies with its end ball head 40 on one roof-shaped central surface 42 from below, which in one Upper part 44 is molded in.

This upper part 44 has a circumferential side and top Surface 46, which is formed as a truncated cone in cross section is. This cross section is in parallel planes, along the Comb bar 12, the same size for a claw 14 and for all Claws 14 present in the same way. However, it is also possible, the surface 46 radially symmetrical and thus for example to be conical.

A design corresponding to surface 46 is shown in FIG Carrier bar of the garbage containers to be picked up, the to be hung on the claws 14. The inner surface the carrier bar is shaped so that the claws 14 over the entire surface with their surfaces 46 in the driving bar immerse and there on corresponding inner walls of the Driving bar and / or end faces of cross bars, which in the carrier bar are present.

Side walls projecting downward from the upper part 44 50 off. These sidewalls are centered over the Lower part 16 positioned upper part 44 at a distance 52 from the Outer wall 54 of the support walls 20, 22 positioned. The distances 52 are the same size. In from the support walls 20, 22 enclosed inner area, the upper part 44 has a downwardly protruding projection 56 in which the roof-shaped central surface 42 is present molded.

On the projection 56 is via a screw connection accessible from below 58 a molded part 60 attached, which is a clamping part with which the ball head 40 on the central surface 42 can be held pressed. Relative to ball head 40 the upper part 44 can be pivoted.

Between the projection 56 or its outer surfaces 57 and the support walls 20, 22 there are also distances 62, the existing at centrally above the lower part 16 Upper part 44 are the same size.

There is a between the molded part 60 and the base surface 26 Coil spring 64 positioned the molded part 60 and thus the upper part 44 from the base 26 and thus from the lower part pushes upwards.

The situation of the upper part 44 shown in FIG. 2 represents represents the unloaded state of the claw 14. As soon as the lower part 16 and thus the comb strip 12 from below into the down open carrier bar of a garbage container must the comb bar 12 is positioned only as far below the carrier bar be that the upper part 44 with its upper region 65 can dip into the carrier bar. In the further Starting up the lower part 16 can be the case with respect to the lower part 16 by the dimension 62 freely movable upper part 44 of the respective Position of the waste container and thus the existing one Adjust the position of its carrier bar. The upper part 44 can so full and unencumbered, without constraints on the take-out bar exercise, immerse in it.

As soon as the upper part 44 is fully immersed in the carrier bar is present, comes when the lower part is raised further 16 the projection 56 either on the inner wall 24 of the support wall 20 or on the inner wall 24 of the support wall 22 for contact. When the lower part 16 is raised further, the upper part becomes 44 pressed downwards along the inclined inner wall 24, whereby there is a transverse movement perpendicular to the longitudinal axis 66 (Double arrow 68) carried out. In the final state, this happens Upper part 44 in its position shown in Fig. 3, in the it is positioned centrally and exactly above the lower part 16 is.

In its transverse movement (double arrow 68) the upper part takes 44 the drive bar fully seated on it and thus the corresponding garbage container with movement. The on The garbage container can be exerted by the drive bar be well received since the upper part 44 is full sits in the carrier bar and accordingly for power transmission large contact surfaces between the waste container and the upper part 44 are available. Generally made of plastic, Existing garbage containers can therefore act on them Take up the load non-destructively. The between top 44 and lower part 16 occurring forces act only on one small area. However, these forces can generally made of sufficiently resistant material, such as metal, manufactured claws and comb strip 12 can be easily recorded.

The side walls 50 are over a rubber mat or other flexible mat 70 on the lower part, for example Screw connections 72, 74 connected. That’s through the distance 52 predetermined gap 76 between the upper part 44 and Lower part 16 covered dust-tight. The screw connections 72, 74 are to be sunk if necessary, so that no more protruding parts are present on the outside.

In order to deflect the upper part 44 shown in FIG. 2 enable, the bolt 36 must also from its in Fig. 2nd Deflect the vertical, central orientation shown can. To enable this deflection, the Breakthrough 28 that shown in the drawing down tapered shape. The bolt 36 also serves a complete lifting of the upper part 44 from the lower part 16 to prevent. This lifting is only after loosening the nut 34 and the screw connection 72 or 74 possible. The upper part 44 can then together with the bolt 36 upwards from the lower part 16 are taken away. By loosening the screw 58 then the molded part 60 is removed from the upper part 44 and thereby the Bolts 36 are removed from the upper part 44.

Instead of the coil spring 64, other elastic ones could also be used Shaped bodies such as shock absorbers can be arranged. The shock absorbers could also generally be called hydraulic or pneumatically actuated piston-cylinder arrangements be provided. It could be done by charging the Pistons with different amounts of pressure medium the size of the push the upper part 44 upwards, away from the lower part 16 Power can be designed variably. For example the risk of the upper part 44 tipping out of it vertical alignment by appropriate action to counteract the size of these compressive forces. This In some cases, it could tip over when centering the Upper part 44 occur on the lower part 16.

Claims (16)

1. Arrangement for emptying refuse containers into a refuse-collecting vehicle, having

   a receiving apparatus (12) [sic] which is provided on the lifting/tilting apparatus of the refuse-collecting vehicle and is intended for the refuse containers,

   a plurality of upwardly projecting claws (14) and recesses (15), located therebetween, on the receiving apparatus (12) [sic] for gripping beneath a carry-along bar, which is cross-sectionally designed as an essentially downwardly open U-profile bar and projects outwards on the respective refuse container, along a side wall at, or in the vicinity of, its opening border, and

   a bottom supporting means for the refuse container fitted on the receiving apparatus (12) [sic],
   characterized in that

   the claw (14) is fastened in a stationary manner, by way of a bottom part (16), on the receiving apparatus (12) [sic],

   a top part (44) of the claw (14) is fastened on the bottom part (16) in a movable manner, such that

   when it is in positions remote from the bottom part (16), the top part (44) can be moved freely relative to the bottom part in the direction (68) towards the container and away from the container, and that

   when it is in a position with minimal spacing from the bottom part (16), the top part (44) cannot be moved relative to the bottom part (16), and

   there is a single position in which there is minimal spacing between the top part (44) and bottom part (16).
2. Arrangement according to Claim 1, characterized in that

   when it is in positions remote from the bottom part (16), the top part (44) can be moved freely relative to the bottom part (16) in all directions.
3. Arrangement according to Claim 1 or 2, characterized in that

   provided between the top part (44) and the bottom part (16) is at least one spacer (64), which tries to move the top part (44) and bottom part apart to the extreme extent.
4. Arrangement according to Claim 3, characterized in that

   the spacer (64) is an elastically deformable element.
5. Arrangement according to Claim 3 or 4, characterized in that

   the spacer (64) is a spring element.
6. Arrangement according to one of the preceding claims, characterized in that

   the spacer is a piston/cylinder apparatus.
7. Arrangement according to one of the preceding claims, characterized in that

   the spacer is a hydraulically or pneumatically actuable piston/cylinder apparatus.
8. Arrangement according to one of the preceding claims, characterized in that

   the top part (44) has abutment surfaces (57) which taper obliquely downwards towards one another at least in a cross-section,

   the bottom part (16) has inner surfaces (24) corresponding to said abutment surfaces (57), such that, in the position with minimal spacing between the bottom part (16) and top part (44), the abutment surfaces (57) butt against the inner surfaces (24) over the entire surface area, and that, in the other positions, there are different spacings (62) between said surfaces (24, 57), this spacing (62) being greatest when there is maximum spacing between the top part (44) and the bottom part (16),

   there is a retaining element (36), by means of which it is possible to limit the maximum spacing of the top part (44) from the bottom part (16),

   the retaining part (36) is fastened on the bottom part (16) and top part (44) in a movable manner,

   provided between the top part (44) and bottom part (16) is a helical spring (64), by means of which the top part (44) can be forced in the direction away from the bottom part (16).
9. Arrangement according to Claim 8, characterized in that

   the retaining part (36) is a rod-like element which is retained on the bottom part (16) such that it can be displaced longitudinally and deflected out of its longitudinal direction.
10. Arrangement according to one of the preceding claims, characterized in that

    the retaining part (36) has a spherical-head-like end region (40) by way of which it butts against a recess (42) in the top part (44) from beneath,

    clamp-like fastening parts (60) are fastened on the top part (44) and can secure the spherical-head-like end region (40) on the top part (44).
11. Arrangement according to one of the preceding claims, characterized in that

    there is a protective mat (70) which covers over the overlapping region of the top part (44) and bottom part (16) on the outside.
12. Arrangement according to Claim 11, characterized in that

    the top part (44) and bottom part (16) each have the protective mat (70) fastened on them (72, 74).
13. Arrangement according to one of the preceding claims, characterized in that

    in the direction of the plurality of claws (14) present, the top part (44) has respectively mutually parallel, identical cross-sections.
14. Arrangement according to one of the preceding claims, characterized in that

    the top part (44) is of radially symmetrical design.
15. Arrangement according to one of the preceding claims, characterized in that

    the carry-along bar of the refuse container, said bar being designed essentially as an open U-profile bar in the downward direction, is adapted to the outer surface (46) of the top part (44) of the claw (14) such that, when the top part (44) has penetrated into the profile bar to the full extent, there can be no relative movement between the top part (44) and refuse container in the direction (68) towards the container and away from the container, but that, when the top part (44) has not penetrated into the profile bar to the full extent, such relative movement (68) between the top part (44) and container is possible.
16. Arrangement according to one of the preceding claims, characterized in that

    the inner surface of the profile bar can be positioned against the outer surface (46) of the top part (44) via planar inner-wall regions and/or via end surfaces of webs which are integrally formed in the interior of the profile bar.

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