DE7537968U - LIFT-TIPPING DEVICE FOR WASTE COLLECTION VEHICLES - Google Patents

Description

KARLSRUHE FELIX-MOTTL-STRASSE 1 a TELEFON 590455

P 15SO / 75 Gbm
November 10 1> 75

Pfitzenmeier & Rau, Knittlingen

7134 Knittlinqen
Unterer Steinweg 64

Lift and tilt device for refuse collection vehicles

In the following it is a lifting and tilting device for refuse collection vehicles, for arrangement on a bed, which with a pivotable, a pouring opening having Front panel is provided with a hinged to the bed, by means of a hinge pin to one Attachment of bin holders supporting, hydraulically operated lifting frames.

The device is used in particular for emptying standardized large garbage containers with a capacity of 220 or 120 liters in garbage trucks, but it's just as good for that Emptying of 35 or 50 liter rubbish bins and HO liters Suitable for garbage cans.

Lifting and tipping devices for refuse collection vehicles must have high dumping capacities and must be unhindered and complete Allow emptying of the garbage can. This not only requires a reliable and simple one Structure, which can cope with the unusually harsh operating conditions

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gen has grown in the removal of rubbish, but also appropriate movement sequences when lifting and tipping the garbage cans. A simple construction helps to avoid breakdowns and accidents, as well as wear and tear Particularly exposed parts of the device must be exchangeable quickly and, if possible, without the need for skilled workers being.

It has long been a group of lift and tilt devices known, in which one or two initially vertical lifting arms one by means of two hydraulic cylinder-piston units Carry a liftable and lowerable barrel holder intended for hanging up the garbage can. To the lifting of the garbage can to the level of the pouring opening provided in a pivoting front panel Barrel holder and garbage can by means of a third one, attached to the side of the device, via a rack and pinion a segment pinion on the pivot axis of the lifting arm engaging hydraulics pivoted up for the purpose of emptying. In devices of this type, lifting and tilting are done using separate working organs, which makes one not inconsiderable effort required, in addition, an exchange of the pivoting effect is necessary Hydraulics only possible by trained staff in a workshop.

This gave rise to the task of developing a lifting and tilting device which has a simple construction and only one hydraulic cylinder-piston unit needs, which is also easily exchangeable.

This object was achieved in a lifting-tilting device of the type described at the outset by a hinge pin

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pivotally engaging, a forwardly against the holder tons Kippschulter bearing, provided with a serving for engagement with a lifting frame arranged at the pawl cam tilting frame, on which an attached to the bed _t hydraulic cylinder-piston Aggreg ^ engages at. With the help of the proposed on which the _Hubraihme% n pivotally mounted with the barrel holder connecting hinge pin Kippgestelles a simple movement for lifting and pivoting is achieved of the to be emptied refuse container with little mechanical effort, which requires only one hydraulic cylinder-piston unit. Since this is also located in an easily accessible place between the bulk and the tilting frame, it can be exchanged quickly and easily by trained workers.

An advantageous embodiment of the lifting and tilting device consists of an electromagnet attached to the bed, which faces an armature provided on the lifting frame. This electromagnet secures the uppermost lifting position of the lifting frame while the rubbish bin is tipping.

Appropriately, for the automatic opening of the pawl connecting the lifting frame to the tilting frame, a lug is used the bed is arranged.

The hydraulic cylinder-piston unit is advantageous in a manner known per se with a multi-part telescopic unit diverging or converging pistons. Such an aggregate has a short length and can therefore be set quite high on the bed, so that a corresponding ground clearance for the Refuse collection vehicle results.

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The proposed lifting and tilting device is explained in more detail below with reference to the accompanying drawings. It show:

FIG. 1 shows the dump of a garbage truck arranged lifting-tilting device in a side view, with a garbage can attached to the barrel holder, the barrel holder in the lower lift position;

FIG. 2 the lifting and tilting device according to FIG. 1,

the barrel holder in the raised lifting position;

Figure 3, the lifting and tilting device according to Figure 1, the barrel holder in the uppermost, to the Front panel of the bed ajar lift position;

FIG. 4 the lifting and tilting device according to FIG. 1,

the barrel holder in the topmost stroke position, at the end of its tilted position.

The lifting and tilting device consists - see Figure 1 - essentially of a barrel holder 1, a lifting frame 2, a tilting frame 3 and a hydraulic cylinder-piston unit 4th

The lifting and tilting device is arranged on a bed 5, which forms the rear wall of a garbage collection vehicle 6 »The bulk 5 carries one in the direction of the garbage collection vehicle 6 front panel 7 which can be swiveled in and which is provided with a pouring opening 8 in its center. Through this

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The pouring opening 8 passes through the dumped garbage into the interior of the refuse collection vehicle 6. The front panel is pivotably attached to a pouring housing 10 with the aid of two pivot pins 9 and carries on its rear side a pivot lever 11 'on which a return spring 13 suspended on the head 12 of the pouring housing 10 engages.

The bed 5 carries a swei near its lower edge Holding frames 15 standing parallel and connected at the head end with a traverse 14 plates. On the traverse 14, a buffer 16 is attached to which the barrel holder 1 in its lower stroke position (see FIG. 1) is applied. One side of the hydraulic cylinder-piston unit 4 is pivotably attached to the holding frame 15.

The lifting frame 2 is articulated to the pouring device 5 with a bearing pin 17. He carries with the help of one on his front, The free end of the joint bolt 18 provided the barrel holder 1. An anchor 19 is located on the lifting frame 2 in the form of a plate made of ferromagnetic material, which in the uppermost stroke division - see Figures 3 and 4 = faces an electromagnet 20 fastened to the bed below the bed housing 10. On the lifting frame 2 a pawl 21 is also arranged.

The tilting frame 3 engages - see FIG. 2 - on the hinge pin connecting the cube frame 2 and the barrel holder 1 pivotable. The with its upper part in lower C Figure 1) or raised (Figure 2) stroke position within the Lifting frame 2 lying tilting frame 3 carries a facing towards the barrel holder 1 and reinforced with a damping lining 22 Tilting shoulder 23 on which the barrel holder 1 rests during the lifting and tilting movements. On the tilting frame 3

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the piston 25 of the hydraulic cylinder-piston unit engages 4 at. The tilting frame 3 is also equipped with a long cam 24 (see also FIG. 4), which is in the lower (Figure 1) and raised (Figure 2) stroke position in engagement with the pawl 21, so that during the lifting movement taking place under the action of the cylinder-piston unit 4, lifting frame 2 and Tilting frame 3 are connected to one another and are moved together.

At the bulk 5 (Figure 2) below the bulk housing 10 and just below the electromagnet 20 is a adjustable formed and thus adjustable nose 26 is arranged. This nose 26 is in the uppermost stroke position (cf. FIGS. 3 and 4) opposite a release lever 27 of the pawl of the lifting frame 2 and thus serves for the automatic Opening the pawl 21 at the moment in which the uppermost stroke position of the barrel holder 1 is reached.

The function of the lifting and tilting device shown is as follows.

A garbage can 29, which can be moved by means of rollers 28, is moved up to the garbage collection vehicle 6 for emptying and is attached with its profiled edge 30 to the holding shoulder 31 of the can holder 1. After actuation of a control valve (not shown), the pressure medium flows into the cylinder-piston unit A _1, whereby the barrel holder at the front of the lifting frame 2 is first brought vertically upwards into its raised lifting position according to FIG. At the end of this movement, the tilting shoulder 23 hits the barrel holder 1.

In the course of the subsequent movement process

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the barrel holder 1 together with the garbage can to be emptied 29 raised further and pivoted at the same time until the hinge pin 18 with the two hinge pins 9 of the front plate 7 is coaxial and at the same time the armature 19 sitting on the lifting frame 2 on the electromagnet 20 and c.er the upper edge of the garbage can 29 rest on the pivoting front plate 7 - Figure 3. An electrical switch (not shown), which causes current to flow through the coil of the electromagnet 20, so that this holds the lifting frame 2 in place. A moment earlier, the release lever 27 of the pawl 21 was on the type of Scbüttung 5 protruding nose 26 abutted, whereby the pawl 21 opened and the cam 24 of the Kippgesitelles 3 was released. Under the influence of am jistzt independent from the lifting frame 2 freely pivotable Kippgesi: ells 3 attacking cylinder-piston unit 4 are mm barrel holders 1 and garbage can 29 together with the front plate 7 in the interior of the debris housing IO against the Swiveled in by force of the return spring 13 (FIG. 4), the lid 32 of the garbage can 2 <) opening automatically and the garbage falls out.

After emptying, the (nichi; shown) Control valve initiated the return of the pressure medium of the cylinder-piston unit 4. The return spring 13 pivots the front plate 7 together with the garbage can 29 and the barrel holder 1 into that shown in FIG Lift position back; then the current to the electromagnet 20 is interrupted and the lifting frame 2 is thereby interrupted Approved. The lifting frame 2 can now also swivel back! the pawl 21 immediately engaging the cam 24 of the tilting frame 3. This makes the tilting frame 3 for the further lowering of the garbage can 29 hanging on the barrel holder 1 is connected again to the lifting frame 2 until finally the lowest lift position (Figure 1) is reached again and the garbage can 29 is on the floor and can be unhooked can.

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November 10, 1975

Compilation of the reference numbers used

1 Barrel holder 2 Lifting frame 3 Tilting frame 4th Cylinder-piston unit 5 Bulk 6th Garbage collection vehicle 7th Front panel 8th Pouring opening 9 Pivot pin 10 Bulk housing 11th Swivel lever 12th head 13th Return spring 14th traverse 15th Holding frame 16 buffer 17th Bearing pin 18th Hinge pin ₎ 19th Anchor ί 20th Electromagnet 21 pawl 22nd Cushioning lining 23 Tilt shoulder 24 Cam 25th Pistons 26th nose 27 Release lever 28 role 29 Garbage can 30th edge 31 Holding shoulder 32 lid

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Claims (4)

Expectations 1. Lifting and tilting device for refuse collection vehicles, for Arrangement on a bed, which is provided with a pivotable front plate having a pouring opening is, with a hinged to the bed, by means of a hinge pin one for hanging garbage cans hydraulic operated lifting frame supporting the barrel holder, characterized by one which engages pivotably on the hinge pin (18), one Tilting shoulder (23) bearing against the barrel holder (1), with one for engagement in one on the lifting frame (2) arranged pawl (21) serving cam (24) provided Tilting frame (3) on which a hydraulic cylinder-piston unit attached to the bed (5) (4) attacks. 2. Lifting-tilting device according to claim 1, characterized by one on the bed (5) fixed and an on the lifting frame (2) provided armature (19) opposite electromagnet (20). 3. Lift and tilt device according to claim 1 or 2, characterized by one on the bed (5) arranged, for opening the pawl (21) serving nose (26). 4. lifting-tilting device according to one of claims 1 to 3, characterized in that the hydraulic cylinder-piston unit in a manner known per se with a multi-part, telescopically apart or converging piston (25) is equipped. 7537968 Z5.03.76