CH630033A5 - LIFTING AND TILTING DEVICE FOR EMPTYING CONTAINERS IN COLLECTIVE TANKS, IN PARTICULAR OF WASTE CONTAINERS IN WASTE COLLECTING VEHICLES. - Google Patents

Description

The invention relates to a lifting and tilting device for emptying containers into collecting containers, in particular refuse containers in refuse collection vehicles, in which a lifting device that detects the container is attached to a swivel arm or a pair of swivel arms and the swivel arm or swivel arm pair can be tilted about a horizontal axis 55 a pouring device is mounted and is connected for pivoting with a cylinder-piston unit or a pair of cylinder-piston units.

In the known devices of this type, the cylinder-piston unit or pair of cylinder-piston units provided for pivoting the swivel arm or pair of swivel arms is supported on the pour-in device at a distance below the mounting of the swivel arm or pair of swivel arms. (See DT-GM 18 56 975, DT-PS 10 21 786, DT-AS 12 66 213, OE-PS 228 719, OE-PS 65 1 089 565.) This arrangement has the disadvantage that a considerable part of the Pouring device is included in the force path between the support point of the cylinder-piston unit and the bearing point of the swivel arm

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and accordingly must be stable and difficult to train. Another major disadvantage of this known arrangement is that in the case of refuse collection vehicles, such a deep arrangement of the support point of the cylinder-piston unit causes a considerable loss of ground clearance. Since the pouring device on garbage trucks is lower with increasing loading and corresponding spring loading and, moreover, garbage trucks have to drive on uneven terrain, for example for emptying in the landfill, the greatest possible ground clearance is to be sought, especially when the vehicle is loaded.

The object of the invention is therefore to provide a lifting and tipping device for emptying containers into collecting containers, in particular for emptying garbage containers in garbage collection vehicles, in which on the one hand a short force path between the support point of the cylinder-piston unit and the mounting of the swivel arm exists and on the other hand, the greatest possible ground clearance of the vehicle can be guaranteed even when loaded.

This object is achieved according to the invention in that the cylinder-piston unit is arranged approximately parallel to the respective swivel arm in the starting position and engages on an attachment which is attached in the lower end region of the swivel arm and up to behind the one containing the swivel axis of the swivel arm. extends parallel to the swivel arm, the cylinder-piston unit being supported on a bearing plate fastened to the pouring device, on which the swivel arm is also pivotably mounted about the horizontal axis. In addition to the solution to the problem, the invention creates a particularly compact lifting and tilting device which ensures optimum ground clearance with favorable development of the pivoting force generated by the cylinder-piston unit. The bearing plate is a central element that absorbs the supporting forces of the cylinder-piston unit and closes the force path with the mounting of the swivel arm, which can be made massive and strong without having to make the weight of the entire device excessively large.

In the known lifting and tipping devices, in which the lifting device is movably attached to the swivel arm or pair of swivel arms, and the movement of the lifting device is derived from the tilting movement of the swivel arm or pair of swivel arms, it is naturally necessary to support these to derive the stroke path from the tilting movement Arrange the device at a distance from the position of the swivel arm or swivel arm pair. However, support for the device deriving the lifting movement from the tilting movement has previously been provided on a wall of the pouring device. This in turn necessitates the design of parts of the pouring device to be particularly strong and massive. In contrast, as an advantageous development and addition to the invention, the device that derives the movement of the lifting device from the tilting movement of the swivel arm or swivel arm pair can also be supported on the bearing plate. This further complements and completes the function of the bearing plate as a central, force-absorbing and transmitting element. The contraction of all these storage and support points • on the bearing plate also makes the operation of the device considerably safer and the risk of accidents is significantly reduced.

In one embodiment of the invention, the device that derives the lifting movement from the tilting movement can be a handlebar that is pivotable at one end on the bearing plate and at the other end on an arm of a support arm for the lifting device, which is in the form of an angle lever and is mounted on the pivot arm Container is stored. In the lower starting position of the swivel arm or pair of swivel arms, the angle lever arm of the support arm connected to the handlebar can be directed approximately vertically upwards, while the handlebar with its articulation point on the bearing plate is supported on the length of the upward angle lever arm in such a way that the initial, upward tilting movement of the swivel arm or pair of swivel arms is converted into an approximately the same counter-tilting movement downward of the support arm. This converts the initial tilting movement of the swivel arms into a lifting movement of the support arms in a particularly simple manner.

It is particularly advantageous in the context of the invention if the cylinder-piston unit is designed with a simple piston guided in the cylinder and the cylinder is pivotally mounted on the bearing plate at a distance from its end. The design of the cylinder-piston unit with a simple cylinder and piston offers the advantage over a telescopic cylinder arrangement that it is much cheaper and simpler. However, with the same stroke length of the cylinder-piston unit with a simple design, a considerably longer cylinder length is required. By supporting the cylinder-piston unit on the bearing plate and thus in the vicinity of the swivel axis of the swivel arm or swivel arm pair, the required large length of the cylinder can easily be accommodated by the fact that the bearing parts required for the swivelable support of the cylinder away from the cylinder end in the middle area of the cylinder length.

To substantially strengthen and improve the bearing point and support point, a parallel second bearing plate can be added to the bearing plate within the scope of the invention, the swivel arm and the cylinder-piston unit being accommodated between the two plates and being mounted in both plates. In this way, not only the storage and support of the swivel arm and the cylinder-piston unit is significantly improved, but also a more or less symmetrical force path arrangement between the support point of the cylinder-piston unit and the bearing point of the swivel arm.

In the case of lifting and tipping devices according to the invention, which are equipped with a device for deriving the movement of the lifting device from the tilting movement of the swivel arm, it is possible within the scope of the invention to add a parallel second bearing plate to the bearing plate on both sides at a distance, the swivel arm and the cylinder-piston arrangement on one side of the bearing plate in this and the one second bearing plate and the handlebar of the device which converts the tilting movement into the lifting movement are mounted on the other side of the bearing plate in this and the other second bearing plate.

But you can also provide the handlebar with a fork-shaped end that engages over both sides of the possibly extended bearing plate. This means that the special secondary bearing plate for the handlebar can be saved.

In the case of lifting and tilting devices according to the invention which have a pair of swivel arms, it is expedient to arrange the second bearing plate additionally supporting the swivel arm and the cylinder-piston unit, and to arrange the second bearing plate additionally supporting the handlebars on the inside. In the case of lifting and tilting devices according to the invention with a pair of the swivel arms which receive the containers to be emptied between them, a funnel-shaped abutment and running when tipping into the pouring opening can be arranged between the two swivel arms

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Baffle must be attached. This abutment and baffle plate is a safeguard for the storage and support of the swivel arms and the cylinder and piston units on the bearing plates. In particular, this funnel-shaped abutment plate and baffle plate prevents dirt or garbage from getting onto the bearing plate when emptying containers reached. If the lifting and tipping device with handlebar is designed as a device that derives the lifting movement from the tipping movement and is pivotably mounted on the swivel arms and is designed as a lifting arm in the form of angle levers, the abutment and baffle plate on the supporting arms can expediently be used, preferably the angle lever arms pointing upwards in the starting position of the swivel arms to be appropriate.

An embodiment of the invention is explained below with reference to the drawing. Show it:

Figure 1 shows a lifting and tilting device according to the invention in side view, in the lower end position.

FIG. 2 shows a device according to FIG. 1 in the upper end tilt-in position;

Fig. 3 shows a device according to FIG. 1 in front view, without waste container and

Fig. 4 is an enlarged view of a bearing plate arrangement in another embodiment.

As can be seen from the drawings, in particular FIG. 1, the cylinder-piston unit 1 for pivoting the pair of pivot arms 2 and the handlebars 3 is arranged approximately parallel to the respective pivot arm 2 in the starting position. For the upper linkage for the cylinder-piston unit 1, for the swivel arms 2 and the handlebar 3 - the function of which will be explained later - serve the mounting plates 5, 6 and 7, which are fastened directly to the pouring device 4 and are arranged parallel to one another (see FIG 3).

As can be seen from the front view of FIG. 3, the bearing plates 5, 6 and 7 - which perform the function as central, force-absorbing and transmitting elements - are arranged on both sides below the pouring opening 4, with the axis 8 of the respective one of the bearing plates 5 and 6 Swivel arm 2 is added while the axis 9 of the handlebar 3 is supported by the plates 6 and 7. The upper articulation point 10 of the cylinder-piston unit 1 is arranged below it between the bearing plates 5 and 6 in the manner of a transverse journal.

In the lower area of each swivel arm 2, a projection 12, which projects behind the lower swivel axis 11 and is used for mounting the piston rod 1 a of the cylinder-the-piston unit 1. As can be seen from FIG. 1, the transverse bearing journal 10 is arranged at a distance from the upper end of the cylinder-piston unit 1. This measure allows a greater overall length of the cylinder-piston unit than the distance between the articulation point 10 and the shoulder 12.

The handlebar rods 3, which derive the lifting movement from the tilting movement, are - as already explained above - with their upper end pivotably mounted between the bearing plates 5, 7 while the lower end is articulated on the upwardly directed part of the angle lever arm 13, at the same time coaxial at this articulation point the respective support arm 14 and the respective swivel arm 2 are mounted. The horizontal part of the angle lever arm 13 merges into the support arm 14.

The movement or workflow of the tilting device is as follows:

When the cylinder-piston unit 1 is actuated, the pair of swivel arms 2 moves upward, but the support arms 14 initially remain in an essentially horizontal position. The garbage container 15 is grasped and lifted vertically upwards without, however, executing a tilting movement, i.e. that the handlebar rod converts the initial upward tilting movement of the swivel arms into an approximately equal counter-tilting movement downwards of the support arms. Up to this point, the cylinder-piston units 1, the swivel arms 2 and the handlebars 3 are still parallel to one another. Only after the substantially horizontal line of the swivel arms 2 has been exceeded does the movement of the support arms 4, which is derived from the tilting movement of the swivel arm pair, likewise become a tilting movement in such a way that the handlebar 3 presses the part of the angle lever arm 13 pointing upwards, and in the course of the movement further upward pivoting movement by the handlebars 3, the support arms 14 are pivoted in the sense of a tilting movement relative to the pivoting arms 2, the container being pivoted toward the pouring opening 4, as can be seen in FIG. During the lifting movement, the container 15 rests on the funnel-shaped abutment and guide plate 16, which is arranged between the two swivel arms 2 and is fastened to the support arms. This abutment and baffle plate 16 is a safeguard for the storage and support of the swivel arms and the cylinder-piston units on the bearing plates in such a way that it is prevented that dirt or garbage can get into the bearing plates when the container is emptied.

Fig. 4 shows an embodiment or bearing plate arrangement in which only two bearing plates are provided for mounting the cylinder-piston unit, the swivel arms and the handlebar. While the cylinder-piston assembly 1 and the swivel arms 2 are supported in the manner already described on the bearing plates 5 and 6. the handlebar 23 is fastened or mounted directly on the bearing plate 6 by means of a fork piece 24 arranged at its upper end, which extends over both sides.

As FIGS. 1 and 2, in particular FIG. 2, show, containers of different sizes can be detected and emptied with the lifting and tilting device according to the invention. The lid 15a of the container 15 is opened by the lid opening device 17, which grips the lid 15a with its fork-shaped end pieces 17a on the pin 15b and pushes it back during the pivoting-in movement. The pins 19b of the container 19 arranged on the lid 19a, on the other hand, run in the course of the pivoting-in tilting movement along the U-shaped guideways 20 arranged on both sides of the pouring opening 4, the lid 19a being opened by the guideways 20 which rise to the rear. To reduce the friction, the pins 19b can be rotatably mounted.

The support arms 14, 18 designed for the various containers 15, 19 are pivoted vertically and can be folded inwards while driving - as shown in dash-dotted lines in FIG. 3 - but the support arms 18 are not shown in FIG. 3 for the sake of clarity folded, but only shown unfolded.

The arrangement of the bearing plates according to the invention, in conjunction with the individual articulation points of the respective units and devices, creates a particularly compact lifting and tipping device which ensures optimum ground clearance with favorable development of the pivoting force generated by the cylinder-piston unit. The bearing plates represent a central element that absorbs the supporting forces of the cylinder-piston unit and closes the force path with the bearing, the weight of the entire device not being significantly increased, despite the solid construction of these plates.

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Claims (3)

630033 1. Lifting-tilting device for emptying containers into collecting containers, in particular of waste containers in refuse collection vehicles, in which a lifting device that detects the container is attached to a swivel arm or a pair of swivel arms and the swivel arm or the swivel arm pair is mounted on a pouring device so that it can be tilted about a horizontal axis and for pivoting is connected to a cylinder-piston unit or a pair of cylinder-piston units, characterized in that the cylinder-piston unit (1) is arranged approximately parallel to the respective swivel arm (2) in the starting position and engages on an extension (12) which is attached in the lower end region of the swivel arm (2) and extends beyond the plane which contains the swivel axis (11) of the swivel arm (2) and is parallel to the swivel arm (2), the cylinder piston - The unit (1) is supported on a bearing plate (5, 6) attached to the pouring device (4), on which the swivel arm (2) also rotates around the horizontal Axis (8) is pivotally mounted. (2) is directed approximately vertically upwards and the handlebar (3) with its articulation point (9) on the bearing plate (6, 7) is matched to the length of the upward angle lever arm (13) in such a way that the initially upward tilting movement of the swivel arm (2) or swivel arm pair into an approximate same counter-tilting movement down of the support arm (14) is implemented. 5. Lifting and tipping device according to one of claims 1 to 4, characterized in that the cylinder-piston unit (1) is designed with a simple piston (la) guided in the cylinder and the cylinder (1) is pivotable at a distance from its end (at 10) on the bearing plate (5, 6) is stored. 6. Lifting and tipping device according to one of claims 1 to 5, characterized in that a parallel second bearing plate (5) is added to the bearing plate (6) u. the swivel arm (2) and the cylinder-piston unit (1) are accommodated between the two plates (5, 6) and are mounted in both plates. 7. lift-tilt device according to one of claims 3 to 6, characterized in that a parallel second bearing plate (5, 7) is added to the bearing plate (6) on both sides at a distance and the swivel arm (2) and the cylinder-piston arrangement on one side of the bearing plate (6) in this and the one secondary bearing plate (5) and the handlebar (3) of the device converting the tilting movement into the lifting movement on the other side of the bearing plate (5) are mounted in this and in the other secondary bearing plate (7). 8. Lifting and tipping device according to claim 7 with a 5 pair of swivel arms, characterized in that the pivot arm (2) and the cylinder-piston unit (1) additionally bearing second bearing plate (5) each outside and the handlebar (3) additionally bearing Second bearing plate (7) are each arranged on the inside. 9. Lifting and tipping device according to one of claims 1 to 8, with a pair of the containers to be emptied between receiving swivel arms, characterized in that between the two swivel arms (2) a funnel-shaped, running when tipping into the pouring opening (4) 15 abutment and guide plate (16) is attached. 10. Lifting and tipping device according to claim 3 and 9, characterized in that the abutment and guide plate (16) on the support arms, preferably in the starting position of the swivel arms (2) upward angle 20 lever arms (13) is attached. 11. Lifting and tipping device according to claim 3, characterized in that the handlebar (23) engages with a fork-shaped end (24) on both sides of the bearing plate (6). 25 12. Lifting and tipping device according to one of claims 1 to 11, characterized by a lid opening device attached above the pouring opening (4) with obliquely upwardly extending guide rails (20), along the pins mounted on the lid (19a) of the container (19) (19b) 30 run. 13. Lifting and tipping device according to claim 12, characterized in that the guide rails (20) via support rails (21) are connected to the bearing plates (5). 14. Lifting and tipping device according to one of claims 1 35 to 13, characterized in that on the lifting device 2. Lifting and tipping device according to claim 1, characterized in that the lifting device (3, 13, 14) movably attached to the swivel arm or the swivel arm pair (2) and with a movement of the lifting device (3, 13, 14) from the tilting movement of the swivel arm (2) or swivel arm pair deriving device, wherein the movement of the lifting device (3, 13, 14) from the tilting movement of the swivel arm (2) or swivel arm pair deriving device is also supported on the bearing plate (6, 7) . 3. Lift-tilt device according to claim 2, characterized in that the lifting movement deriving from the tilting device is a handlebar (3) which is pivotable at one end on the bearing plate (6, 7) and at the other end on an arm of a Lifting device forming, in the form of an angle lever (13) and on the swivel arm (2) mounted support arm (14) for the container (15, 19) is mounted. 4. Lifting and tipping device according to claim 3, characterized in that the with the handlebar (3) connected to the lever arm (13) of the support arm (14) in the lower starting position of the pivot arm or pair of pivot arms 2nd PATENT CLAIMS (3, 13, 14) carrying devices (14, 18) for containers (15, 19) of different sizes to be emptied are attached and a combined lid opening device (17, 20) for containers (15, 20) of different sizes is provided. 40 15. Lifting and tipping device according to claim 14, characterized in that the guide rails (20) as an opening device for larger containers (19) and a catch and abutment frame (17, 17a) pivotable against the action of an elastic element (22) as a lid opening device -45 device for smaller containers (15) are provided.