EP0786424B1 - Lifting and tipping device with means for locking the trunnions of a refuse receptacle - Google Patents

Abstract

The device has two pivoted brackets, with pivoted fork-shaped prongs at the front ends. Each prong (2) has an open hook (5) at the front, and an upright hook (10) at the back, which is also open to the front. The rear end of each prong has a controlled locking unit (20-23). This acts with the rear hook, to lock with the holder journals (17) of a waste container to be emptied. The locking unit consists of a locking lever (21), which is held on the prong and pivoted by a drive (23), eg.a hydraulic cylinder. Adapted panels are positioned on the top of both prongs, with holders for side journals of a large-size refuse collection container.

Description

The invention relates to a refuse collection vehicle with two about a transverse axis Swiveling bracket on the chassis of a lifting and tilting device their free front ends with pivotable, fork-shaped tines are, each tine at its front end with a front open Hook is provided.

A known for example from DE-GM 295 11 275 lifting-tilting device This type is used to hold and tilt the brewing containers according to DIN 30737, the container trays of each one or two hinged covers can be closed, which are arranged around transverse axes are pivotally mounted. These cross axes are at an empty container with two hinged lids on the upper edge area in the transverse central plane and with a large waste container with only a hinged lid on the upper edge of the rear wall of the Container. The axes of the hinged lid are over the rare walls also extended so that protruding journal is formed are used to hold the container when it is tilted. Two there are cantilevers that are parallel to the axle journals in the front area by a peripheral edge profile stiffened container edge. Because of the arrangement of the axis or Receiving spigot and the design of the emptying container is on Referred to DIN 30737.

In the device known from DE-GM 295 11 275 the fork-shaped tines at their front ends with receptacles for the receiving pin formed by the journal and in their rear areas with shots for the front area of the Emptying container located receiving spigot provided Counter bearings exist, which can be pivoted by gravity Limits are provided.

From FR-A-24 30 898 (on which the preamble of claim 1 is based) is a lifting and tilting device consisting of two fork-shaped Tines known with front hook-shaped receptacles and rear hooks are provided for receiving spigots of an emptying container, the in the inserted into the rear hook through a gravity pendulum trained locking lever can be locked. This as a gravity pendulum trained locking levers are capable of a safe coupling of the emptying container to the tines because they fail if they are caught by objects in their swivel range, for example waste, can be prevented from swinging out.

The object of the invention is a lifting and tilting device for a refuse collection vehicle to create the type specified above, with which it is simple and reliable Pick up, tilt and empty the emptying container provided with a mounting pin let sit down again.

According to the invention, this object is achieved by a refuse collection vehicle 1 solved. Preferred embodiments of the invention are the subject of the dependent Expectations.

The fork-shaped tines are used to hold an empty container so advanced that they are the garbage can to be picked up between them and open the hooks that are open towards the front the mounting pins are pushed. Are those of the recording the hook serving for the receiving pin in its area, the locating pins slide completely into the hooks, when the tines are raised and the locating pins on the Slip the flanks of the lower hook legs backwards. As soon as in this way, the locating pins completely into the hook-shaped If the recordings engage, the pin is inserted into the rear Locking locking device closed, so that the locating pin is no longer forward from the hook can slip out and the mounting pin securely attached to the tines so that the garbage bins are emptied into the rear of the cab located waste collection container can be tilted overhead. The Locking will then occur during the final phase of depositing the trash can or released after weaning. The locking device exists from a locking lever pivoted by a drive and mounted on the tines. The drive can be a hydraulic cylinder.

Because the waste containers to be emptied through the fork-shaped tines of the lifting and tilting device pivoted overhead, they can come off the tines, if the locking is caused, for example, by incorrect operation at the wrong time is solved. It is therefore provided that the locking device is controlled in this way is that after lifting the bin to be emptied over a height, from which it could fall if the lock was released, also by incorrect operation cannot be solved and that the locking only occurs when the machine is lowered can be lifted again when the waste container has been moved into a position which can fall off the arms automatically after releasing the lock. The locking of the lock according to the invention ensures that the emptying garbage containers from the tines at an inappropriate time, so accidents, for example by releasing the lock as a result of incorrect operation can arise, be avoided.

The front hook expediently has a lower, the upper hook leg towering thigh. This lower hook leg protruding towards the front facilitates the coupling to the through the protruding axle journals formed spigot.

In a further embodiment it is provided that the inner flanks of the upper hook legs of the two hooks at an acute angle to the inner flanks of the lower Hook legs are angled. This configuration not only makes it easier Retracting the locating pin into the hook, it also causes the emptying container can be pushed forward after weaning so that Overloading of the container and the wheels of the container can be prevented.

According to a further embodiment of the invention it is provided that on the upper Hook part of the rear hook is a protruding extension with an approximately right angle to the flank of the lower hook leg extending abutting surface. This abutting surface forms when coupling the to be picked up and tilted Large waste container has a stop for the front mounting pin, so that after roughly placing the tines on the mounting pins and the When lifting the tines, slide the front locating pins off the abutting surfaces and slip into the open hook mouths of the rear hooks.

Large waste containers must also be emptied in refuse collection vehicles their opposite side walls with aligned locating pins (e.g. according to DIN 30700) or with pockets in which the fork-shaped Drive in the tines to couple the large containers.

According to a preferred embodiment of the invention is therefore that on the An adapter plate is arranged on the top of each of the two tines Holder for the lateral support spigot of a large waste container or emptying container is provided. The fork-shaped tines can be through these receptacles to the receptacles of the large waste containers couple it so that it is picked up, tilted and lifted by the tines can be discontinued.

At least one is expediently on the tine carrier Stop supporting arm attached, which when tilting one Large garbage container supporting on the tine carrier facing Side supports. This stop forms a moment support, which prevents the garbage container from swinging and this when Tilt supports.

The receptacle expediently consists of a recess with a curve rising towards the refuse collection vehicle, which in a hook opens, the mouth of which slants towards the tip of the tine extending opening. For holding the large waste container the fork-shaped tines on both sides of the large waste container attached to the laterally projecting mounting pin so that these slide into the hook mouth when lifting on the curve, in which they are held securely when lifting and tilting.

According to a further embodiment of the invention, that the adapter plate around a extending in the longitudinal direction of the tines Axis is mounted so that it is out of its functional position is pivotable into an inactive position in which it is on the outside of the tine. This configuration increases the compatibility of the fork-shaped tines for picking up different container types, the adapter plates being simple can be folded outwards if, for example, containers to be tilted with other receptacles.

The adapter plate is expediently fork-shaped on one side Provide bearing legs in their aligned holes an axis is mounted in a on the top of the Tine bracket is held so that the adapter plate between their inactive position in which they are the tine outside, and its active position pivotable in which it lies against the inside of the tines and protrudes above the top of the tines with their pick-up.

According to a further preferred embodiment, that stops in front of the adapter plate on the outside of the tines intended for holding bags of large waste or empty containers are. If such containers are to be tilted, leave them there the fork-shaped tines move so far into the receiving pockets until the stops hit their rear edges.

The width of the tines is expediently adjustable. For this purpose, they can be moved on the crossbeam that supports them be stored and provided with an actuator.

Fig. 1

eine Seitenansicht der Aufnahmegabel der Hub-Kipp-Vorrichtung eines Müllsaaunelfahrzeugs während des Ankuppeln eines Umleerbehälters an diese,

Fig. 2

eine der Fig. 1 entsprechende Aufnahmegabel, in deren Haken die Aufnahmezapfen des Umleerbehälters vollständig eingefahren sind,

Fig. 3

eine Seitenansicht einer Aufnahmegabel, die zusätzlich mit einer verschwenkbaren Adapterplatte zur Aufnahme von Müllgroßbehältern versehen ist, die in dem mittleren oberen Bereichen ihrer Seitenwände mit fluchtenden Aufnahmezapfen versehen sind,

Fig. 4

einen Schnitt durch einen gabelförmigen Zinken,

Fig. 5

eine Seitenansicht des gabelförmigen Zinkens nach Fig. 3, der an einen mit seitlichen Aufnahmetaschen versehenen Müllgroßbehälter angekuppelt

Embodiments of the invention are explained below with reference to the drawing. In this shows

Fig. 1

2 shows a side view of the receiving fork of the lifting and tilting device of a refuse sauna vehicle while coupling an emptying container to it,

Fig. 2

1 receiving fork corresponding to FIG. 1, in the hook of which the receiving pins of the emptying container are completely retracted,

Fig. 3

2 shows a side view of a receiving fork which is additionally provided with a pivotable adapter plate for receiving large refuse containers which are provided with aligned receiving pins in the middle upper regions of their side walls,

Fig. 4

a section through a fork-shaped prong,

Fig. 5

a side view of the fork-shaped tine of FIG. 3, which is coupled to a large waste container provided with side pockets

On the bow-shaped lifting arms 1 of a known front loader, as can be seen, for example, from DE-GM 295 11 426.6 is, two fork tines 2 are pivotable about pivot axes 3 stored. The fork tines 2 have short cantilevers projecting to the rear Arms 4, on which the pivoting of the fork tines 2 is used and attack hydraulic cylinders, not shown.

Each fork tine 2 points forward at its front end open hook or a hook-shaped receptacle 5 on the from a lower longer hook leg 6 and an upper shorter one Hook leg 7 is there. The inner edge 8 of the lower The hook leg runs approximately parallel to the longitudinal median plane of the tine 2, while the inner flank 9 of the upper hook leg 7 rises at an acute angle to the lower flank.

Each tine 2 also has one in its rear area hook 10 open towards the front, its lower hook leg an inner flank that runs parallel to the prong 2 11 owns. The upper hook leg 12 has an inner one Flank 13 running at an acute angle to the lower flank. The upper hook leg 12 has an upstanding extension 14 provided, the flat front of a thrust surface 15th forms.

In the rear area of each of the tines 2 or on the lower legs the rear hook 10 is pivotable about the axis 20 two-armed lever mounted, the upper arm 21 completely can be pivoted out of the mouth of the hook 10 and pivoted into it in this manner is that he has a peg inserted into this 17 locked. On the second arm 22 of the lever is the Piston rod of a hydraulic cylinder 23 articulated, which in turn is articulated to the tine 2.

The hooks 5, 10 are used to couple the tines 2 to the receiving pins 16, 17 of emptying containers according to DIN 30737.

1 shows a position of the fork-shaped tines 2, in which the bulk waste container to be picked up and tilted Border 25. The tines are so to the side of the Container has been advanced that the abutting surfaces 15 against the front receiving pin 17 encounter and the longer lower Hook leg 6 of the front hook 5 under the receiving pin 6 are located. If the tines 2 are now raised, the locating pins slide 16, 17 into the open hook mouths, as shown in FIG. 2 can be seen. In this position shown in Fig. 2 the lever arm 21 is in its locking position by the hydraulic cylinder 23 pivoted so that the large waste container 25th is securely coupled to the fork-shaped tines 2 and the container can be lifted and tilted.

The forked tines described above are still also suitable for large waste containers with folding or sliding lids according to DIN 30738, with each other on their side walls parallel pockets for retracting the fork-shaped tines are provided, take up and tilt. For this purpose are the fork-shaped tines 2 in their front and rear Provide areas with additional stops.

3 shows a large waste container or emptying container 30 according to DIN 30700 can be seen, on its opposite sides is provided with receiving pin 31, which is approximately in the transverse central plane the container pan are in the upper edge area. In order to accommodate such large containers, tilt and again To be able to set down is the tine on each narrow top 32 2 on bearing blocks 34, an adapter plate 35 is pivotally mounted. The adapter plate is forked on one side Bearing legs 36 provided, the bearing blocks and the bearing legs are aligned with holes that a bearing pin interspersed. This type of storage is the adapter plate 35 between their upright active position in which they 3 on the inside of the fork tines abuts, and its folded position 35 'pivotable, in the manner shown in FIG. 4 the outside of the fork-shaped tines 2 is folded. Both Swivel positions are stable because the swivel axis is approximately in the middle longitudinal plane of the fork tines 2 and the adapter plate thereby acted upon by moments in their two positions is that they hold in these positions. The adapter plate 35 has a receptacle 37, the bottom of which an inclined or curved towards the refuse collection vehicle Sliding curve 38 is formed. The curve 38 opens into a hook mouth 39, its opening obliquely towards the front area the tine 2 runs.

On the tine carrier 40, which consists of a cross member, are one or two arms 41 attached which stops at their front ends 42 wear, which serve as a moment support and a pendulum prevent when lifting, tipping and setting down the containers and support them.

4 is the adapter plate for the sake of clarity shown laterally offset to the receiving pin 31.

In fact, engages in the receiving pin 31 in the Recording 37 of the adapter plate 35.

In order to also be able to pick up and tilt large waste containers, the on their opposite side walls with receiving pockets 51 are provided, the fork-shaped tines 2 are on their outer sides provided with stops 50. To accommodate with pockets equipped waste containers are the adapter plates 35 in their inactive positions shown in FIGS. 4 and 5 folded in which they are on the outside of the tines 2. After setting the width of the tines 2 accordingly these are then inserted into the receiving pockets 51, until the stops on the rear edges of the receiving pockets create in the manner shown in Fig. 5.

The fork-shaped tines 2 have hooks at their front ends forming stages 53 provided behind the when recording grab upper front edges of the receiving pockets 51.

Claims (12)

1. Refuse-collecting vehicle having two clamps of a lifting/tipping device, which clamps are mounted on the undercarriage in a manner such that they can pivot about a transverse axis and are provided at their free, front ends with pivotable, forked prongs, each prong (2) being provided at its front end with a forwardly open hook (5), each prong (2) being provided on its rear end region with a projecting, likewise forwardly open hook (10), and on the rear end region of each prong (2) a controlled locking device (20 to 23) in the form of a pivotable locking lever (21) mounted on the prong (2) being provided, which device interacts with the rear hook (10) and by means of which a locating trunnion (17) pushed into the rear hook (10) and belonging to a refuse receptacle (25) to be emptied can be locked, and characterized in that the locking lever (21) can be pivoted by a hydraulic cylinder (23), the hydraulic cylinder being coupled at one end to the locking lever (21) and at the other end to the corresponding prong (2), a control device being provided for the hydraulic cylinder and being designed in such a manner that, after the receptacle to be emptied has been raised above a height from which it could drop down when the lock is released, the hydraulic cylinder is blocked and the locking device cannot be released even by an operating error, and in that the lock is only cancelled again when the receptacle is deposited, if the refuse receptacle has been moved into a position from which it can no longer drop down after the lock is released.
2. Refuse-collecting vehicle according to Claim 1, characterized in that the front hook (5) has a lower limb (6) protruding above the upper hook limb (7).
3. Refuse-collecting vehicle according to Claim 2, characterized in that the inner flank (9) of the upper hook limb (7) is angled at an acute angle to the inner flank (8) of the lower limb (6).
4. Refuse-collecting vehicle according to one of Claims 1 to 3, characterized in that the upper hook part (12) of the rear hook (10) is provided with a flank running at an acute angle to the flank (11) of the lower hook part.
5. Refuse-collecting vehicle according to one of Claims 1 to 4, characterized in that a protruding extension (14) having an impact surface (15) running approximately at right angles to the lower flank (11) of the lower hook part adjoins the upper hook part (12) of the rear hook (10).
6. Refuse-collecting vehicle according to one of Claims 1 to 5, characterized in that a respective adapter plate (35) which is provided with a socket (37) for lateral locating trunnions of a bulk refuse receptacle or discharging receptacle is arranged on the upper side of both prongs (2).
7. Refuse-collecting vehicle according to Claim 6, characterized in that at least one arm (41) bearing a stop (42) is fastened to the prong support (40), the said arm, during tipping of a bulk refuse receptacle, supporting the latter in the manner of a prop on its side facing the prong support.
8. Refuse-collecting vehicle according to Claim 6 or 7, characterized in that the socket (37) comprises a recess of a curve (38) which rises towards the refuse-collecting vehicle and opens into a hook, the mouth of which has an opening running obliquely to the prong tip.
9. Refuse-collecting vehicle according to one of Claims 6 to 8, characterized in that the adapter plate (35) is mounted about an axis running in the longitudinal direction of the prongs (2), in such a manner that it can be pivoted from its functional position into an inactive position in which it is situated on the outer side of the prong.
10. Refuse-collecting vehicle according to Claim 9, characterized in that the adapter plate (35) is provided on one side with forked bearing limbs in whose aligned holes a spindle, which is held in a bearing bracket (34) fastened on the upper side of the prongs (2), is held, so that the adapter plate (35) can be pivoted between its inactive position, in which it is situated on the outer side of the prongs, and its active position, in which it bears against the inner side of the prongs (2).
11. Refuse-collecting vehicle according to one of Claims 6 to 10, characterized in that stops (42) for locating pockets (51) of bulk refuse receptacles or discharging receptacles are provided on the outer side of the prongs (2) in front of the adapter plate (35).
12. Refuse-collecting vehicle according to one of Claims 1 to 11, characterized in that the prongs (2) can be adjusted in their width.

Images