DE2425584A1 - STOPPER DEVICE FOR COMPRESSING MUELL INTO REPLACEABLE, OPEN-TOP CONTAINERS - Google Patents

Description

DR.-ING. DIPL.-ING. M. ^ C. Dlfl.-PMYk. OH. OH "U -" - V ·. HÖGER - LEGAL RIGHTS - GRIESSBACH - HAECKER PATENT LAWYERS IN STUTTSART

May 21, 1974 2425584

J. Ochsner & Cie. AG, Badenerstrasse 119, Θ004 Zurich / Switzerland

Tamping device for compressing garbage in exchangeable,

open top containers

The invention relates to a stuffing device for compressing of rubbish in exchangeable, open-topped containers of any cross-section, one by means of a hydraulic press drivable stuffing body is immersed in the container.

In known stuffing devices of this type, the stuffing body leads either only a straight movement or only an arcuate pivoting movement, which requires a relatively large overall height, which is highly undesirable in basements, where such facilities are usually set up. The invention aims to remedy this disadvantage and at the same time strives for an economical construction of the stuffing device. In addition, should they can be used for all types and cross-sectional shapes of open-topped containers. The tamping device stands out according to the invention in that the hydraulic press is attached at the bottom to two L-shaped, on a base plate Stands and is hinged on top of two parallel, coaxial levers, the other hand on the stuffing body

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are articulated, and that two parallel links on the one hand are hinged on the staple body and on the other hand to the uprights, so that two equal hinge quadrilaterals of pairs opposite sides of the same length are formed which, when the press is actuated, the stuffing body inside the container move parallel to oneself downwards or upwards, but outside the container the same towards or from the latter swing the same way.

In the drawing is an embodiment of the stuffing device shown schematically according to the invention. It is;

Fig. 1 is a vertical section through the stuffing device a waste container inserted in the same,

2 shows a side view of the device in a different working position,

FIG. 3 is a front view of FIG. 2,

Fig. 4 is a perspective view of a protective bracket, and

5 shows a hydraulic circuit diagram.

The stuffing device shown has two L-shaped sheet metal stands 1, the lower legs of which are fastened to a base plate 2. On the base plate 2 there are two hydraulic lifting cylinders 3 which carry a lifting table 4. On the latter sits a garbage container 5, which has four bicycles 6 which, in the position shown in FIGS. 1 to 3, have been lifted from the ground by means of the lifting cylinders 3. The container 5 is held on the stands 1 by two hooks 7. The hooks 7 sit on a common pivot axis 8 and engage on two lateral,

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Bow-shaped handles 9 of the container 1. Between the stands 1 there is a pump 11 that can be driven by a motor 10 and a hydraulic working cylinder 12. The cylinder 12 is connected to the stands 1 at the bottom by a joint 12a, while its piston rod 13 is articulated at 14 to two identical, parallel levers 15 is. The levers 15 are pivotably mounted at 16 on the uprights 1 and, on the other hand, are articulated at 17 on a tamping body welded together from sheet metal, which is closed at the bottom by a tamping plate 19. Two connecting rods 20 parallel to one another are hinged at 21 and 22 to the stands 1 and to the stuffing body 18, respectively. As long as the handlebars 20 and the levers 15 do not cross each other (see Fig. 1), they form two sides of an articulated parallelogram with the articulation points 16 _f 17, 21, 22, so that the stuffing plate 18 is parallel to itself when the piston rod 13 moves upwards moves downward in the container 5 and thereby compresses the garbage 23 located in the latter. When retracting the piston rod 13 "is effected (Figure 5 see.) By a return spring 24, the link 20 and the lever 15 cross (see Fig. 2) _r so that the hinge points 16, 17, 21, 22 no longer parallelogram and the stuffing body 18 is pulled out of the container 5 with the stuffing plate 19 inclined.

At 16 there is also a protective bar which is omitted in FIGS. 2 and 3 25 (see FIGS. 2 and 4) hinged to the stand 1. Of the Protective bracket 25 is frictionally connected to a hollow shaft 26, e.g. by friction disks and disc springs (not shown), which carries the two levers 15. A handle 27 allows the protective bracket 25 to be lowered onto the upper edge of the container 5 to pull when it has been taken upwards by the friction on the hollow shaft 26 when the lever 15 is pivoted. Of the Protective bar 25 is the respective cross-sectional shape of the for use incoming container adapted.

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The hydraulic system of the stuffing device shown in FIG. 5 is very easy. The motor 10 of the pump 11 is means the electrical contacts of an Oruckwächers 28 switchable, so that the pump 11, depending on the switching position, OeI off a Qelsumpf 29 sucks or calls in the same. The pump On the other hand, 11 is the working cylinder 12 with the pressure chamber and a check valve 30 with the two lifting cylinders connected · A three-way valve 31 drawn in the blocking position allows the lifting cylinders 3 to be closed directly to the oil sump 29 associate. A safety valve 32 prevents an unacceptable increase in pressure in cylinders 3 and 12.

The stuffing device described works as follows: If there is no oil pressure, the stuffer body 18 is in the rest position according to FIG. 2 under the action of the return spring 24. After the refuse 23 has been filled in, the protective bracket 25 is pulled down onto the edge of the container, which actuates a limit switch (not shown). As a result, voltage is supplied to the motor 10, for example via a motor protection (not shown), the pressure monitor 28 ensuring that the pump 11 presses oil into the cylinders 3 and 12. The container 5 is thus raised and the garbage 23 is compressed. When the oil pressure set on the pressure switch 28 is reached, its contacts reverse the motor 10 via the motor contactor; the pump 11 conveys the oil from the working cylinder 12 back into the sump 29 and the return spring 24 brings the stuffing body 18 back into its rest position, taking the protective bow 25 with it. However, the container 5 remains in the raised position because of the check valve 30. After filling of further waste of the safety bar 25 is pulled down again, whereupon a new compression of the gauze takes place and so on, until the container is filled with compressed rubbish 5 is _r is now on renewed attainment of the rest position of the three-way valve 18 Stopfkörpers

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31 actuated so that the ObI runs out of the lifting cylinders 3, whereby the container 5 comes to stand on its wheels B and can be replaced with an empty container of the same type can.

The stuffing device has compared to known devices for rubbish bins of the same size a much smaller one Height. By placing the container 5 on the lifting table 4 the wheels 6 are relieved of the compression pressure. As the lifting cylinder 3 are supported on the base plate connected to the uprights 1, the uprights are not anchored to the ground necessary, as with certain facilities in which the compression pressure is diverted to the floor via the wheels of the container Compression movement of the pot body injures careless people can be. When the protective bracket 25 is raised, the work process is interrupted immediately. The reversible Motor-pump unit 1D, 11 and the return spring 24 arranged in the working cylinder 12 are in the hydraulic circuit Expensive Electrostatic Buerentile superfluous and the whole The device is very economical to manufacture because of its simplicity.

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Claims (3)

Claims f1. jStamping device for compressing refuse in exchangeable, open-topped containers of any cross-section, whereby a tamping body that can be driven by means of a hydraulic press dips into the container, characterized in that the hydraulic press (12, 13) is attached to two L-shaped, on a base plate (2) attached uprights (1) and at the top of two parallel, coaxial levers C15} which are articulated on the other hand to the tamping body (18), and that two parallel links (20) on the one hand on the tamping body and on the other hand the uprights are articulated so that two identical joint visracks (16, 17, 21, 22) are formed by pairs of opposite sides of equal length which, when the press is operated, the stuffing body (1Θ) inside the container (5) parallel to itself downwards or move upwards, outside of the container but pivot towards the latter or away from the same. 2. stuffing device according to claim 1, characterized in that that a protective bracket (25) adapted to the upper edge of the container is provided, which is arranged coaxially with the levers (15) and is frictionally coupled with the same so that it is at Pivoting away the stuffing body (18) from the container (5) of the Lever is taken, and that by manually pivoting the Hsrabschwenken of the protective bracket on the upper edge of the container Motor pump unit (10, 11) is put into operation in order to push pressure oil into the cylinder (12) of the hydraulic press (12, 13) to promote and thereby cause a compression stroke. 3. stuffing device according to claim 2, characterized in that that the motor-pump unit (10, 11) is reversible, wherein the delivery direction from that prevailing at the pump outlet, from 409851/0321 a pressure monitor (28) monitored pressure depends, and that when its adjustable maximum pressure is reached, the unit is switched so that there is OeI from the said cylinder (12) sucks out, with a return spring (24) arranged in the same then over the piston rod (13) of the press (12, 13) causes the return stroke of the stuffing body (18) « 4, stuffing device according to claim 3, characterized in that that two lifting cylinders (3) standing on the dBr base plate (2) a check valve (30) connected to the output of the pump (11) and carry a lifting table (4) which is used to lift a container (5) provided with bicycles (6) from the ground, and that a valve (31) is provided, around which when the motor-pump unit (10, 11) is actuated into the lifting cylinder Drain OeI from the same when the container is compressed Gauze is full and should be replaced with an empty container. 409851/0321 eerseite