Garbage packer with rotating moving components for a rear-loading garbage truck

Abstract

The present invention relates to a garbage packing mechanism, more specifically a garbage packer with rotary moving components for a rear-loaded garbage truck. The garbage packer comprises the body of the garbage packer with two side walls, concave bottom and substantially open at the top and rear sides, a gripping, locking, lifting and emptying mechanism of a garbage bin, and a lever (1) attached in a manner that enables rotation to the inner side of each side wall of the rear part of the body of the garbage packer, whereby the levers (1) can be rotated around the attachment points with lever cylinders (3). A press plate (4) enabling rotational movement is attached between the levers. The garbage packer comprises a stationary separation plate (8) with convex profile. A beam (13, 14, 15) with a plate-shaped extension part (16) is attached between the levers (1), wherein the extension part has a front edge (17). The front edge (17) slides during the garbage packing movements along the convex surface of the separation plate (8), whereby the profile of the convex surface matches the movement path of the lever (1), ensuring that during the packing process the garbage contained in the container does not spill back onto the press plate (4).

Description

Technical field

[0001] The present invention relates to a garbage packing mechanism. Also, emptying a garbage container is described in brief for providing an integral overview of the unit, but emptying a container is not part of the invention and emptying methods are generally known.Background art

[0002] Various garbage packing mechanisms are known from the background art.

[0003] A traditional rear-loaded garbage packer has a linearly moving transport plate, sliding surfaces enabling linear movement in the garbage zone (recess of sliding surfaces) and a press plate. Conventional garbage packers, which are manufactured by many well-known manufacturers, have sliding surfaces in the garbage zone, which contributes to abrasive wear on the sliding surfaces. Replacing the wear elements of the sliding surfaces of such garbage packers is a time consuming and expensive process.

[0004] KR102243468B1 discloses a pressing and collection unit for a garbage truck, including an upper opening / closing cylinder, a lower opening / closing cylinder, a sliding plate, and a press plate. Stationary ends of the lower opening / closing cylinder and the upper opening / closing cylinder are attached in the upper part of the hopper, on the same horizontal line. In the opinion of the applicant, the solution of KR102243468B1 does not enable to achieve as good kinematics or movement paths and force transmissions as in case of the present invention. A disadvantage of the solution is the garbage packing mechanism, more specifically the fact that in a new packing cycle, the garbage contained in the container can fall back out from the container over the planar sliding plate moving during the packing cycle. It is not clear, how the sliding plate of the solution of KR102243468B1 prevents back-flow of the garbage, because the design of the garbage container itself is not illustrated in the figures.

[0005] CN204624449U discloses a filling device of a garbage truck, where a parallelogram simulating straight movement is used in the pressing unit. Levers of the device are connected in a manner enabling rotation with the body of the garbage truck at one end. Other ends of the said levers are connected with a plate, which ensures movement based on a principle of a parallelogram.

[0006] CN201010283Y discloses a mechanism of a filling device of a garbage truck, more specifically a garbage scraper, comprising a scraper and a hydraulic cylinder of the scraper, wherein the scraper is aligned with the lower end of the sliding plate of the pressing unit. The sliding plate of the solution is linearly moving, similar to a traditional rear-loaded garbage packer.

[0007] JPS50143221A discloses a garbage packer, where a lever is attached to the inner side of each side wall of the back part of the body in a manner enabling rotation, wherein the levers can be rotated around the attachment points with cylinders, between the levers a press plate rotated with a cylinder in relation to the attachment points is attached to the levers between the levers, a stationary separation plate, and a plate is attached between the levers adjacent to the rotation axis of the press plate, wherein the free edge of the plate is configured to slide on the surface of the separation plate upon movement of the lever. The solution disclosed in the document JPS50143221A can be considered the closest to the present invention from among the solutions known from the background art. Disadvantage of the solution is the fact that the surface of the separation plate is a plane, therefore the free edge of the sliding plate moves along the plane, while the edge of the plate attached between the levers moves along the imaginary circle, the radius of which is the length of the lever. Thus, upon movement of the plate, the distance between the free edge of the plate and the separation plate changes, and therefore it is not possible to create immediate contact between the free edge of the plate and the separation plate.Summary of the invention

[0008] The objective of the invention is to propose a novel garbage packing mechanism, wherein the parts of the packing mechanism completely lack any linear movement. In the innovative solution, only rotary movements of components are used. Furthermore, most parts enabling movement (bearings) are located outside the garbage zone, and therefore the risk of abrasive wear is significantly lower. As the bearings enabling rotary movement can be designed sufficiently large, with high wear reserve, the new garbage packer can be constructed almost maintenance-free. The need to lubricate the bearings remains. Movement trajectories of the components of the packing mechanism are similar to a traditional garbage packer with linear movement, but not completely identical.

[0009] The garbage packer of the invention with rotary moving components for a rear-loaded garbage truck comprises the body of the garbage packer with two side walls, concave bottom and substantially open at the top and rear sides (seen from the side of garbage truck). The central part of the body of the garbage packer is separated from the garbage container and the garbage contained in the container with a stationary separation plate. The side of the separation plate facing towards the garbage container has convex profile. Gripping, locking, lifting, and emptying mechanism of a garbage container is arranged at the rear part of the garbage packer. The garbage packer comprises two levers, each of which is attached to a side wall of the body at one end in a manner enabling rotation, wherein one lever is attached to one side wall and the other lever is attached to the other side wall. Each lever has its lever cylinder, so that one end of the lever cylinder is attached to the lever in a manner enabling lever rotation, and the other end of the lever cylinder is attached to a side wall of the body in a manner enabling lever rotation. Free ends of the levers can be moved with lever cylinders. A press plate is attached between the free ends of the levers in a manner enabling press plate rotation. A press plate cylinder equipped with a rotary bearing is attached to each lever at each end of the press plate. Other ends of the press plate cylinders are attached to the levers with rotary bearings, so that the press plate can be rotated between the levers. A beam is attached between the levers adjacent to the rotary axis of the press plate, the said beam comprising a plate-shaped extension, made of sheet material, preferably metal, wherein the plate-shaped extension part has a front edge, so that upon movement of the levers the front edge of the plate-shaped extension part slides during the garbage packing movements along the convex surface of the separation plate, wherein the contour line of the convex surface matches the movement trajectory of the levers, ensuring that during the packing process the garbage does not fall onto the press plate in the lower position of the levers. The front edge can be made of steel, or optionally a flexible element can be added to the front edge to ensure better sealing between separation plate and front edge. Optionally, a blade may be attached to the edge of the press plate with bolted joint (or some other detachable joint), enabling to adjust the distance of the press plate from the bottom of the garbage packer. Adjustment takes place through various bolt holes in the blade. Furthermore, the blade can be manufactured in different shapes, for example providing the edge of the blade with teeth, in order to ensure better grip of e.g. paper and cardboard.Brief description of drawings

[0010] Figure 1 illustrates a side view of a garbage packer of the invention in the initial position of the packing cycle. Figure 2 illustrates a side view of a garbage packer of the invention in the 1st phase of the packing cycle. Figure 3 illustrates a side view of a garbage packer of the invention in the 2nd phase of the packing cycle. Figure 4 illustrates an enlarged section of the press plate of a garbage packer of the invention. Figure 5 illustrates a side view of a garbage packer of the invention in the 3rd phase of the packing cycle. Figure 6 illustrates a side view of a garbage packer of the invention in the 4th phase of the packing cycle. Figure 7 illustrates a sectional rear axonometric view of a garbage packer of the invention. Figure 8 illustrates a rear axonometric view of a garbage packer of the invention. Figure 9 illustrates a side view of emptying of a container of a garbage truck equipped with a garbage packer of the invention. Figure 10 illustrates a side view of alternative emptying of a container of a garbage truck equipped with a garbage packer of the invention. Description of embodiments

[0011] The central elements of the garbage packer of the invention are two levers 1, located at the rear part of the body 2 of the garbage packer, more specifically on the inner sides of the side walls of the body of the garbage packer - one on the inner side of one side wall and the other on the inner side of the other side wall. One end of each lever 1 is attached in a manner enabling rotation to the rear part of the body 2 of the garbage packer (seen from the side of garbage truck), in the central area of the inner side of the side wall in vertical direction. Arranging the attachment points of levers 1 as far back as possible in relation to the garbage container ensures better packing efficiency compared to the solutions of the prior art. Other ends of levers 1 can be moved with lever cylinders 3. At the body 2, the levers 1 are equipped with bearings enabling rotary movement. The levers 1 are suitably thin, so that a garbage container fits between the levers.

[0012] A press plate 4 is attached to the levers 1, more specifically between the movable ends of the levers 1. The press plate 4 is equipped with bearings enabling rotary movement in relation to the levers 1 and press plate cylinders 5 enabling movement of the press plate 4. Lever cylinders 3 for moving the movable ends of levers 1, one cylinder per each lever, are intended for performing garbage packing movement. Press plate cylinders 5 at each side end of the press plate 4 are intended for performing the garbage packing phases. First ends of the press plate cylinders 5 are attached to the levers 1, in the preferred embodiment adjacent to the points of attaching the levers 1 to the body 2, and second ends of the press plate cylinders 5 are attached to the rear side of the press plate 4, in the preferred embodiment adjacent to the longitudinal center line of the rear side of the press plate 4, ensuring efficient pressing movement of the press plate 4 due to favorable force transmission.

[0013] The garbage packer has concave bottom 6, wherein the concavity of the bottom 6 is designed such that the free end of the press plate 4 moves adjacent to the surface of the bottom 6. Between the garbage container 7 and the garbage packer there is a separation plate 8 to prevent the garbage from spilling out of the garbage container 7. Figure 1 illustrates schematically the garbage container 9 in tilted position. The gripping, locking, lifting, and emptying mechanism is not shown in the figures, because it is not part of the invention. The lifting mechanism may be equipped with a standard "comb" lift, as shown in Figures 7 and 8.

[0014] The separation line of the garbage container 7 and the garbage packer 2 is indicated with number 10. The garbage packer 2 can be opened hydraulically (Figures 9 and 10), which is a solution known from the prior art. The open (lifted) position of the garbage packer 2 is intended for emptying the garbage container. One option for emptying the garbage container 7 involves using a push plate 11 (Figure 9), as in most conventional garbage trucks. A conventional dual action telescope cylinder is used with the push plate. Another option for emptying the garbage container 7 involves using a tilting cylinder 12 of the garbage container 7, which is intended for lifting the closed end of the container and emptying the container (Figure 10).

[0015] In order to prevent the garbage from spilling onto the press plate 4 with the levers 1 in the low position, a beam is connected between levers 1, which beam is formed of details 13 and 14 and a round pipe 15. Details 13, 14 of the beam are metal plates with oblong shape. These two details are mutually connected at longitudinal edges, forming a beam, while an empty cavity is formed between the details 13 and 14. A plate-shaped extension part 16 extends from the connection site of the details 13, 14 of the beam, whereby part of the plate-shaped extension part 16 adjacent to the front edge 17 is bent towards the convex surface of the separation plate 8. The front edge 17 can be made of e.g. steel, or optionally a flexible element can be added to cover the front edge to ensure better sealing, when the front edge 17 slides on the convex surface of the separation plate 8. In the preferred embodiment of the invention, a metal plate with oblong shape (detail 13) is deformed at the straight line parallel to the longitudinal axis of the plate, forming a detail 13 with slightly V-shaped profile. The second metal plate with oblong shape (detail 14) is planar. In another preferred embodiment, the detail 14 of the beam and the plate-shaped extension part 16 form a single compact planar metal plate, i.e. the detail 14 of the beam and the plate-shaped extension part 16 are made of a single compact planar metal plate, to which the detail 13 of the beam is attached.

[0016] Figure 4 illustrates an enlarged section of the press plate 4, whereby to the free edge of the press plate 4 a blade 18 may be attached with bolt connection (or any other removable connection), enabling to adjust the distance of the press plate 4 from the bottom of the packer 6. Adjustment takes place through various bolt openings in the blade 18. Furthermore, the blade 18 can be cut into different shapes, for example providing the edge of the blade 18 with teeth, in order to ensure better grip of e.g. paper and cardboard.Description of phases of the packing cycle

[0017] 1st phase of the packing cycle, (Figure 2).

[0018] Garbage bin 9 is emptied, the garbage originating from the bin is at the bottom 6 of the packer 2. The free edge of the press plate 4 is moved back away from the garbage container 7 by the press plate cylinders 5. The movement is indicated with an arrow.

[0019] During this backwards movement of the press plate 4, some of the packed garbage falls from the garbage container 7 back to the bottom of the packer, which is normal also in case of classical garbage packer solutions. Separation plate 8 of the packer 2 prevents spilling back of garbage from the top also in the lower position of levers 1 (Figure 3).2nd phase of the packing cycle (Figure 3).

[0020] Levers 1 are moved down by lever cylinders 3. The movement is indicated with an arrow. Thereby the beam (details 13, 14, 15) ensures synchronous movement of levers 1, as this beam connects rigidly (for example with bolt connection, as illustrated in the figures) both levers 1. The press plate 4 is connected with bearings enabling rotary movement to the round pipe 15 forming an edge of the beam. The upper part of the beam has a plate-shaped extension part 16 with front edge 17. During up and down movement of levers 1 in packing cycles, the extension part 16 of the beam (details 13, 14, 15) also moves together with the levers, so that the front edge 17 of the extension part 16 slides along the surface of the separation plate 8, which prevents the garbage from spilling onto the press plate 4 when the levers 1 are in the lower position. During up and down movement, the front edge 17 movement contour copies the inner curved contour of the separation plate 8 on the side of the garbage container and thereby operates as a seal.3rd phase of the packing cycle (Figure 5).

[0021] The press plate 4 is moved down by the press plate cylinders 5. The movement is indicated with an arrow. The garbage is collected in front of the press plate 4.4th phase of the packing cycle (Figure 6).

[0022] The press plate 4 is moved up by levers 1 and lever cylinders 3, and packs garbage into the garbage container 7. After the end of the cycle, the parts of the packer are in the starting position again, as illustrated in Figure 1.

Examples

Embodiment Construction

[0011]The central elements of the garbage packer of the invention are two levers 1, located at the rear part of the body 2 of the garbage packer, more specifically on the inner sides of the side walls of the body of the garbage packer - one on the inner side of one side wall and the other on the inner side of the other side wall. One end of each lever 1 is attached in a manner enabling rotation to the rear part of the body 2 of the garbage packer (seen from the side of garbage truck), in the central area of the inner side of the side wall in vertical direction. Arranging the attachment points of levers 1 as far back as possible in relation to the garbage container ensures better packing efficiency compared to the solutions of the prior art. Other ends of levers 1 can be moved with lever cylinders 3. At the body 2, the levers 1 are equipped with bearings enabling rotary movement. The levers 1 are suitably thin, so that a garbage container fits between the levers.

[0012]A press plate 4...

Technical field

[0001] The present invention relates to a garbage packing mechanism. Also, emptying a garbage container is described in brief for providing an integral overview of the unit, but emptying a container is not part of the invention and emptying methods are generally known.Background art

[0002] Various garbage packing mechanisms are known from the background art.

[0003] A traditional rear-loaded garbage packer has a linearly moving transport plate, sliding surfaces enabling linear movement in the garbage zone (recess of sliding surfaces) and a press plate. Conventional garbage packers, which are manufactured by many well-known manufacturers, have sliding surfaces in the garbage zone, which contributes to abrasive wear on the sliding surfaces. Replacing the wear elements of the sliding surfaces of such garbage packers is a time consuming and expensive process.

[0004] KR102243468B1 discloses a pressing and collection unit for a garbage truck, including an upper opening / closing cylinder, a lower opening / closing cylinder, a sliding plate, and a press plate. Stationary ends of the lower opening / closing cylinder and the upper opening / closing cylinder are attached in the upper part of the hopper, on the same horizontal line. In the opinion of the applicant, the solution of KR102243468B1 does not enable to achieve as good kinematics or movement paths and force transmissions as in case of the present invention. A disadvantage of the solution is the garbage packing mechanism, more specifically the fact that in a new packing cycle, the garbage contained in the container can fall back out from the container over the planar sliding plate moving during the packing cycle. It is not clear, how the sliding plate of the solution of KR102243468B1 prevents back-flow of the garbage, because the design of the garbage container itself is not illustrated in the figures.

[0005] CN204624449U discloses a filling device of a garbage truck, where a parallelogram simulating straight movement is used in the pressing unit. Levers of the device are connected in a manner enabling rotation with the body of the garbage truck at one end. Other ends of the said levers are connected with a plate, which ensures movement based on a principle of a parallelogram.

[0006] CN201010283Y discloses a mechanism of a filling device of a garbage truck, more specifically a garbage scraper, comprising a scraper and a hydraulic cylinder of the scraper, wherein the scraper is aligned with the lower end of the sliding plate of the pressing unit. The sliding plate of the solution is linearly moving, similar to a traditional rear-loaded garbage packer.

[0007] JPS50143221A discloses a garbage packer, where a lever is attached to the inner side of each side wall of the back part of the body in a manner enabling rotation, wherein the levers can be rotated around the attachment points with cylinders, between the levers a press plate rotated with a cylinder in relation to the attachment points is attached to the levers between the levers, a stationary separation plate, and a plate is attached between the levers adjacent to the rotation axis of the press plate, wherein the free edge of the plate is configured to slide on the surface of the separation plate upon movement of the lever. The solution disclosed in the document JPS50143221A can be considered the closest to the present invention from among the solutions known from the background art. Disadvantage of the solution is the fact that the surface of the separation plate is a plane, therefore the free edge of the sliding plate moves along the plane, while the edge of the plate attached between the levers moves along the imaginary circle, the radius of which is the length of the lever. Thus, upon movement of the plate, the distance between the free edge of the plate and the separation plate changes, and therefore it is not possible to create immediate contact between the free edge of the plate and the separation plate.Summary of the invention

[0008] The objective of the invention is to propose a novel garbage packing mechanism, wherein the parts of the packing mechanism completely lack any linear movement. In the innovative solution, only rotary movements of components are used. Furthermore, most parts enabling movement (bearings) are located outside the garbage zone, and therefore the risk of abrasive wear is significantly lower. As the bearings enabling rotary movement can be designed sufficiently large, with high wear reserve, the new garbage packer can be constructed almost maintenance-free. The need to lubricate the bearings remains. Movement trajectories of the components of the packing mechanism are similar to a traditional garbage packer with linear movement, but not completely identical.

[0009] The garbage packer of the invention with rotary moving components for a rear-loaded garbage truck comprises the body of the garbage packer with two side walls, concave bottom and substantially open at the top and rear sides (seen from the side of garbage truck). The central part of the body of the garbage packer is separated from the garbage container and the garbage contained in the container with a stationary separation plate. The side of the separation plate facing towards the garbage container has convex profile. Gripping, locking, lifting, and emptying mechanism of a garbage container is arranged at the rear part of the garbage packer. The garbage packer comprises two levers, each of which is attached to a side wall of the body at one end in a manner enabling rotation, wherein one lever is attached to one side wall and the other lever is attached to the other side wall. Each lever has its lever cylinder, so that one end of the lever cylinder is attached to the lever in a manner enabling lever rotation, and the other end of the lever cylinder is attached to a side wall of the body in a manner enabling lever rotation. Free ends of the levers can be moved with lever cylinders. A press plate is attached between the free ends of the levers in a manner enabling press plate rotation. A press plate cylinder equipped with a rotary bearing is attached to each lever at each end of the press plate. Other ends of the press plate cylinders are attached to the levers with rotary bearings, so that the press plate can be rotated between the levers. A beam is attached between the levers adjacent to the rotary axis of the press plate, the said beam comprising a plate-shaped extension, made of sheet material, preferably metal, wherein the plate-shaped extension part has a front edge, so that upon movement of the levers the front edge of the plate-shaped extension part slides during the garbage packing movements along the convex surface of the separation plate, wherein the contour line of the convex surface matches the movement trajectory of the levers, ensuring that during the packing process the garbage does not fall onto the press plate in the lower position of the levers. The front edge can be made of steel, or optionally a flexible element can be added to the front edge to ensure better sealing between separation plate and front edge. Optionally, a blade may be attached to the edge of the press plate with bolted joint (or some other detachable joint), enabling to adjust the distance of the press plate from the bottom of the garbage packer. Adjustment takes place through various bolt holes in the blade. Furthermore, the blade can be manufactured in different shapes, for example providing the edge of the blade with teeth, in order to ensure better grip of e.g. paper and cardboard.Brief description of drawings

[0010] Figure 1 illustrates a side view of a garbage packer of the invention in the initial position of the packing cycle. Figure 2 illustrates a side view of a garbage packer of the invention in the 1st phase of the packing cycle. Figure 3 illustrates a side view of a garbage packer of the invention in the 2nd phase of the packing cycle. Figure 4 illustrates an enlarged section of the press plate of a garbage packer of the invention. Figure 5 illustrates a side view of a garbage packer of the invention in the 3rd phase of the packing cycle. Figure 6 illustrates a side view of a garbage packer of the invention in the 4th phase of the packing cycle. Figure 7 illustrates a sectional rear axonometric view of a garbage packer of the invention. Figure 8 illustrates a rear axonometric view of a garbage packer of the invention. Figure 9 illustrates a side view of emptying of a container of a garbage truck equipped with a garbage packer of the invention. Figure 10 illustrates a side view of alternative emptying of a container of a garbage truck equipped with a garbage packer of the invention. Description of embodiments

[0011] The central elements of the garbage packer of the invention are two levers 1, located at the rear part of the body 2 of the garbage packer, more specifically on the inner sides of the side walls of the body of the garbage packer - one on the inner side of one side wall and the other on the inner side of the other side wall. One end of each lever 1 is attached in a manner enabling rotation to the rear part of the body 2 of the garbage packer (seen from the side of garbage truck), in the central area of the inner side of the side wall in vertical direction. Arranging the attachment points of levers 1 as far back as possible in relation to the garbage container ensures better packing efficiency compared to the solutions of the prior art. Other ends of levers 1 can be moved with lever cylinders 3. At the body 2, the levers 1 are equipped with bearings enabling rotary movement. The levers 1 are suitably thin, so that a garbage container fits between the levers.

[0012] A press plate 4 is attached to the levers 1, more specifically between the movable ends of the levers 1. The press plate 4 is equipped with bearings enabling rotary movement in relation to the levers 1 and press plate cylinders 5 enabling movement of the press plate 4. Lever cylinders 3 for moving the movable ends of levers 1, one cylinder per each lever, are intended for performing garbage packing movement. Press plate cylinders 5 at each side end of the press plate 4 are intended for performing the garbage packing phases. First ends of the press plate cylinders 5 are attached to the levers 1, in the preferred embodiment adjacent to the points of attaching the levers 1 to the body 2, and second ends of the press plate cylinders 5 are attached to the rear side of the press plate 4, in the preferred embodiment adjacent to the longitudinal center line of the rear side of the press plate 4, ensuring efficient pressing movement of the press plate 4 due to favorable force transmission.

[0013] The garbage packer has concave bottom 6, wherein the concavity of the bottom 6 is designed such that the free end of the press plate 4 moves adjacent to the surface of the bottom 6. Between the garbage container 7 and the garbage packer there is a separation plate 8 to prevent the garbage from spilling out of the garbage container 7. Figure 1 illustrates schematically the garbage container 9 in tilted position. The gripping, locking, lifting, and emptying mechanism is not shown in the figures, because it is not part of the invention. The lifting mechanism may be equipped with a standard "comb" lift, as shown in Figures 7 and 8.

[0014] The separation line of the garbage container 7 and the garbage packer 2 is indicated with number 10. The garbage packer 2 can be opened hydraulically (Figures 9 and 10), which is a solution known from the prior art. The open (lifted) position of the garbage packer 2 is intended for emptying the garbage container. One option for emptying the garbage container 7 involves using a push plate 11 (Figure 9), as in most conventional garbage trucks. A conventional dual action telescope cylinder is used with the push plate. Another option for emptying the garbage container 7 involves using a tilting cylinder 12 of the garbage container 7, which is intended for lifting the closed end of the container and emptying the container (Figure 10).

[0015] In order to prevent the garbage from spilling onto the press plate 4 with the levers 1 in the low position, a beam is connected between levers 1, which beam is formed of details 13 and 14 and a round pipe 15. Details 13, 14 of the beam are metal plates with oblong shape. These two details are mutually connected at longitudinal edges, forming a beam, while an empty cavity is formed between the details 13 and 14. A plate-shaped extension part 16 extends from the connection site of the details 13, 14 of the beam, whereby part of the plate-shaped extension part 16 adjacent to the front edge 17 is bent towards the convex surface of the separation plate 8. The front edge 17 can be made of e.g. steel, or optionally a flexible element can be added to cover the front edge to ensure better sealing, when the front edge 17 slides on the convex surface of the separation plate 8. In the preferred embodiment of the invention, a metal plate with oblong shape (detail 13) is deformed at the straight line parallel to the longitudinal axis of the plate, forming a detail 13 with slightly V-shaped profile. The second metal plate with oblong shape (detail 14) is planar. In another preferred embodiment, the detail 14 of the beam and the plate-shaped extension part 16 form a single compact planar metal plate, i.e. the detail 14 of the beam and the plate-shaped extension part 16 are made of a single compact planar metal plate, to which the detail 13 of the beam is attached.

[0016] Figure 4 illustrates an enlarged section of the press plate 4, whereby to the free edge of the press plate 4 a blade 18 may be attached with bolt connection (or any other removable connection), enabling to adjust the distance of the press plate 4 from the bottom of the packer 6. Adjustment takes place through various bolt openings in the blade 18. Furthermore, the blade 18 can be cut into different shapes, for example providing the edge of the blade 18 with teeth, in order to ensure better grip of e.g. paper and cardboard.Description of phases of the packing cycle

[0017] 1st phase of the packing cycle, (Figure 2).

[0018] Garbage bin 9 is emptied, the garbage originating from the bin is at the bottom 6 of the packer 2. The free edge of the press plate 4 is moved back away from the garbage container 7 by the press plate cylinders 5. The movement is indicated with an arrow.

[0019] During this backwards movement of the press plate 4, some of the packed garbage falls from the garbage container 7 back to the bottom of the packer, which is normal also in case of classical garbage packer solutions. Separation plate 8 of the packer 2 prevents spilling back of garbage from the top also in the lower position of levers 1 (Figure 3).2nd phase of the packing cycle (Figure 3).

[0020] Levers 1 are moved down by lever cylinders 3. The movement is indicated with an arrow. Thereby the beam (details 13, 14, 15) ensures synchronous movement of levers 1, as this beam connects rigidly (for example with bolt connection, as illustrated in the figures) both levers 1. The press plate 4 is connected with bearings enabling rotary movement to the round pipe 15 forming an edge of the beam. The upper part of the beam has a plate-shaped extension part 16 with front edge 17. During up and down movement of levers 1 in packing cycles, the extension part 16 of the beam (details 13, 14, 15) also moves together with the levers, so that the front edge 17 of the extension part 16 slides along the surface of the separation plate 8, which prevents the garbage from spilling onto the press plate 4 when the levers 1 are in the lower position. During up and down movement, the front edge 17 movement contour copies the inner curved contour of the separation plate 8 on the side of the garbage container and thereby operates as a seal.3rd phase of the packing cycle (Figure 5).

[0021] The press plate 4 is moved down by the press plate cylinders 5. The movement is indicated with an arrow. The garbage is collected in front of the press plate 4.4th phase of the packing cycle (Figure 6).

[0022] The press plate 4 is moved up by levers 1 and lever cylinders 3, and packs garbage into the garbage container 7. After the end of the cycle, the parts of the packer are in the starting position again, as illustrated in Figure 1.

Examples

Embodiment Construction

[0011]The central elements of the garbage packer of the invention are two levers 1, located at the rear part of the body 2 of the garbage packer, more specifically on the inner sides of the side walls of the body of the garbage packer - one on the inner side of one side wall and the other on the inner side of the other side wall. One end of each lever 1 is attached in a manner enabling rotation to the rear part of the body 2 of the garbage packer (seen from the side of garbage truck), in the central area of the inner side of the side wall in vertical direction. Arranging the attachment points of levers 1 as far back as possible in relation to the garbage container ensures better packing efficiency compared to the solutions of the prior art. Other ends of levers 1 can be moved with lever cylinders 3. At the body 2, the levers 1 are equipped with bearings enabling rotary movement. The levers 1 are suitably thin, so that a garbage container fits between the levers.

[0012]A press plate 4...

Claims

1. A garbage packer with rotary moving components for a rear-loaded garbage truck, the front side of the garbage packer is connected to the garbage container (7) of the garbage truck, wherein the garbage packer comprises the body (2) of the garbage packer with two side walls, concave bottom and substantially open at the top and rear sides, a gripping, locking, lifting and emptying mechanism of a garbage bin (9), a lever (1) attached in a manner enabling rotation to the inner side of each side wall of the rear part of the body of the garbage packer, wherein the levers (1) can be rotated around the attachment points with lever cylinders (3), and a press plate (4) attached between the levers (1) to the levers (1), which can be rotated in relation to these attachment points with press plate cylinders (5), characterized in that the garbage packer further comprises in the central part of the body (2) of the garbage packer a stationary separation plate (8) with convex profile on the side of the garbage container, wherein a beam (13, 14, 15) is attached between the levers (1) adjacent to the rotational axis of the press plate (4), which beam has a plate-shaped extension part (16), wherein the plate-shaped extension part has a front edge (17), and the curve radius of the convex profile of the separation plate (8) is substantially equal to the distance between the attachment point of the lever (1) and the front edge (17), so that upon the movement of the lever (1) the front edge (17) is configured to slide along the surface of the separation plate (8) with convex profile.

2. A garbage packer according to claim 1, characterized in that part of the plate-shaped extension part (16) adjacent to the front edge (17) is bent towards the convex surface of the separation plate (8).

3. A garbage packer according to claim 1, characterized in that the front edge (17) is made of steel.

4. A garbage packer according to claim 2, characterized in that the front edge (17) is made of steel, with an added flexible element covering the fronte edge (17).

5. A garbage packer according to claim 1, characterized in that in the free edge of the press plate (4) there is a blade (18).

6. A garbage packer according to claim 4, characterized in that the position of the blade (18) is adjustable.

7. A garbage packer according to claim 4, characterized in that the edge of the blade (18) has teeth.

Images