US2793769A

US2793769A - Refuse truck with load packing means

Info

Publication number: US2793769A
Application number: US460432A
Authority: US
Inventors: Weber Walter Otto
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-11-06
Filing date: 1954-10-05
Publication date: 1957-05-28
Anticipated expiration: 1974-05-28
Also published as: DE1001183B

Description

May 28, 1957 w. o. WEBER REFUSE TRUCK WITH LOAD PACKING MEANS Filed Oct. 5, 1954 May 28, 1957 w. o. WEBER 2,793,769

REFUSE TRUCK WITH LOAD PACKING MEANS Filed oct. 5, 1954 2 sheets-sheet 2 INVENToR. .zZ/MW aff United States Patent REFUSE TRUCK WITH LOAD PACKING MEANS Walter Otto Weber, Buenos Aires, Argentina Application October 5, 1954, Serial No. 460,432

Claims priority, application Germany November 6, 1953 4 Claims. (Cl. 214-82) This invention relates to refuse trucks and ,more particularly, to refuse trucks incorporating load packing means.

Although there have been various proposals, prior to the time of the instant invention, for a refuse truck incorporating a load packing means, these prior art devices at best merely provided for the gradual forward displacement of the entire mass of refuse contained in the truck so that more refuse could be laccommodated in the rear of the vehicle. Although the forward displacement of the mass was effected by means .of an ad vancing wall within vthe rear compartment of the refuse truck, the prior art .devices Were such that, in addition to being compelled to move the entire mass of .refuse `on each occasion, they were also incapable of developing `an elfective pressure to accomplish the job. Additionally, in the prior art devices, no loading could .take place while the refuse already in the truck was being pushed forwards or compressed,

Accordingly, it is one of the primary objects of the present invention to provide a refuse truck having a compression system which allows Vfor the accommodation of unusually large quantities of refuse.

It is another important object of the .present invention to provide a refuse truck having a garbagecGmpression system wherein the loading of the. garbage is ;not interrupted during the compression thereof.

It is still a further object of the present inventionto provide a refuse truck having load packing ,means wherein only refuse located at the rear end of the storage compartment is forwardly displaced when it is desired to clear the rear of the truck for more refuse.

Yet another object of the present .invention is to provide a refuse vehicle having load packing means wherein loading of any nature can be accommodated in an Aetlicient and practical manner.

Another object of the present invention vis to lprovide a refuse vehicle having load packing means wherein the operators do not come into physical contact with the refuse, and, additionally, wherein the refuse and its as,- sociated dust and particles, etc. is .confiend to the :refuse compartment of the truck and will not escape to the'surrounding atmosphere.

With the above objects in view, the present invention mainly consists of a garbage collecting vehicle for vthe collection of house and streetrefuse comprising a tipping storage compartment closed on .its upperpart 'by a wall provided with a lower rear part which supports a hy-v draulic pressure device `for displacing garbage Yfrom the rear part into the storage chamber and means to 4move a swinging door disposed above the Arear aperture of a garbage depositing chamber which extends underneath Patented May 28, 1957 the bottom lof the storage compartment, the swinging door being adapted to be placed in a position representing the extension of the bottom yof the tipping storage compartment, the hydraulic pressure device being provided with telescopic piston means bearing a plate for forcing the collected garbage on said swinging door towards the transversal front wall.

The invention will be best understood from the following description of specic embodiments when read in conjunction with the accompanying drawings wherein:

Fig. 1 is a side elevation of one embodiment of the device of the present invention;

Fig. 2 is a rear elevation of the device of Fig 1;

Fig. 3 is a side elevation of another embodiment of the present invention which provides for the collection of ashes land other powdery materials;

Fig. 4 is a rear elevational view of the device of Fig. 2;

Fig. 5 is an enlarged fragmentary detail, partly in section, of the swinging door assembly shown in Fig. l; and

Fig. '6 is an Venlarged fragmentary detail, partly in section, of the swinging door assembly shown in Fig. 3.

Fig. 7 is a sectional view o'f hydraulic piston 10.

Referring to the drawings and more particularly to Fig. l thereof wherein a refuse truck is shown incorporating the device of the instant invention. A refuse depositing chamber 2 mounted at'the `rear Aof storage com partrnent 17 and depending from the bottom wall thereof is provided to initially receive the :refuse mass which `tlows during operation in the direction of the arrow marked 1. An opening is formed in the bottom wall of compartment 17 adjacent the forwardmost part of chamber v2 so that the two chambers are in communication with one another. A door 7 forms the rear wall of depositing chamber 2 :and is in -operative interconnection with hydraulic pressure piston 3 mounted in the rear of the vehicle above depositing chamber 2. Rack Ior toothed bar 4 is'movably interconnected with piston?, and meshes with ,gear 5 yto cause door 7 to swing forwardly so as to pass through depositing Vchamber 2 or swing rearwardly of the said chamber. The telescopic hydraulic piston 10 mounted rat the rear of storage compartment I7 `is operatively interconnected with movable plate 11 so as to cause the plate 11 to yadvance within storage compartment 17.

When depositing chamber 2 is loaded with refuse hydraulic pressure piston 3 is actuated, causing toothed bar 4 to mesh with gear 5, thereby setting swinging door 7 into movement in the kdirection of the arrow 8. It is in this fashion that garbage is introduced into storage compartment 17.

At this time, by means-of a telescopic hydraulic piston 10, the plate 11 is caused to advance, moving the refuse in .the direction of the arrow 1.2.

The swinging `door 7, which in `position 12 serves as part of the bottom wall Iof the storage compartment 17, returns to its original position 14 after the plate 11 passes location 16 and in this way, the depositing chamber 2 is emptied and the refuse moved towards the front of storage ,compartment117 while the swinging door 7 moves from the position designated at 13 in Fig. 1.

While the depositing chamber 2 `is being filled, the plate 11 moves in the direction of the arrow 12, pressing the garbage inside vthe storage compartment at 17. Shortly lbefore the depositing chamber 2 is lled up to a predetermined level, the plate 11, in the meantime having finished 'its function of compressing the garbage,

returns quickly into its original position and the cycle Y of movement of the swinging door 7 and the plate 11 is repeated, as described above. The wall, i. e. the inclined bottom 18 in front of the storage compartment 17, contributes to displacing the garbage during compression by causing the garbage to move in the direction of the roof of the storage compartment, in this way causing the storage compartment to be totally filled.

In case it is necessary to shovel thergarbage from the street, in order to carry out this task without the necessity of lifting the shovel not more than a few centimeters from the ground, the swinging door 7 is displaced by means of the mechanism as mentioned above and sustained in its position 19 so that the depositing chamber 2 in the rear part of the vehicle remains completely open to receive the shovel loads of refuse. Gnce the storage chamber 2 being filled up to a predetermined level, the cycle of movement of the swinging door 7 and of the plate 1l, as described above, is repeated, only with the difference that the initial position of the swinging door 7 is in 19 instead of in 14. Thus, this vehicle perfectly designed to receive the contents of garbage cans,

may also give practical results when shoveling garbage t from the ground, due to the fact that only a few centimeters of lifting distance is required.

In order to be able to introduce the garbage directly from the ground into the depositing chamber, there is disposed a lowerable bottom flap 38, which is hingedly connected to the side walls of the depositing chamber.

As described above, the movement of the swinging door 7 as well as that of the plate 11 is carried out by means of the piston 3 and the telescopic pist-on by means of a pressure liquid. However, mechanical elements such as, for example, a telescopic wheel spindle and gear movement operated from the axis of the .motor of the vehicle or by human power if the vehicle is a horse car, is also applicable. l

The telescopic piston 10 is most conveniently put into operation by means of a pressure liquid moved by a pump which provides for the automatic adjustment of the pressure and volume of the liquid in accordance with the resistance-.which the plate 11 has to overcome, so that the latter is moved quickly when the resistance is small and moves slowly in the moments `of maximum compression. All these operations are carried out with the same absorption of energy from the pump for the pressure liquid, conveniently put into action from the axis of the motor of the vehicle itself.

The vehicle is unloaded from one of its sides, as shown in Fig. 2, by opening the side door 20 and laterally pivoting the storage compartment on the chassis around point 21, putting into use the telescopic hydraulic piston 22. Additionally, on the roof of the storage chamber one or two compartments may be provided, as marked (23), in order to accommodate large objects which might have been left together with the garbage, or also in order to be able, if necessary, to separately load certain objects which have been separated from the garbage. To make the loading easy, a ladder 24 is attached, and for the unloading one or more (according to the quantity of compartments) side doors are provided.

In this way exists the advantage of unloading one or yall of these compartments 23 in one place, the general load of the vehicle being unloaded somewhere else.

The vehicle for collecting refuse primarily composed of combustion ashes is represented in Fig. 3 and in Fig. 4.

-The vehicle is essentially identical with the one shown in Figs. l and 2 and described before, the movement of the swinging door 7, and plate 11 being the samealong withv all other observations related to the compartments for large `objects and the way of unloading them. The difference lies in the hermetic closing off of the depositing chamber so as to prevent the spreading of dust during unloading. Accordingly, the chamber situated 4 above the depositing chamber is closed by means of walls 26, 27 and 28, and the depositing chamber itself is closed off by an inclined wall 29 which forms a uniform part with the swinging door 7.

For the operation of unloading the garbage cans there is provided a certain quantity of wings 30 (in Fig. 4 3 of them are visible), movable rotatively with articulation 31 where the wall 29 and the swinging door 7 join, adapted to hermetically connect to the garbage can 32 which in this moment is set down upon some of the supports 33 fixed in the swinging door 7.

Once `a garbage can is connected to one of the wings 30, the wing is revolved `around articulation point 31, until it is folded on the wall, the can in such a moment being situated in the position marked. 34. At this stage of the process, by means of an outside mechanism, the caps 35 of the

walls

29 and 36 of the wing 39 are opened, the garbage evaouating in the direction of the arrow 37 into the primary recipient.

Before disconnecting the garbage can, the cap 35 of the wall 29 is closed, and the wing com-es back to its horizontal position in order to connect another garbage can. The hydraulic pressure piston 3, the telescopic hydraulic piston 10 and the telescopic hydraulic piston 22 are operatively controlled by selectively operating means as shown in Figs. l and 3.

In this way the `escape of any dust resulting from unloading of the garbage cans is positively eliminated. Once the depositing chamber is filled, the contents of it is displaced towards the storage compartment of garbage in a way identical to the one described above.

Having described and determined particularly thc nature of the present invention and in what manner the same is to be performed I declare that what I claim is:

1. A garbage collecting vehicle `for the collection of house and street refuse comprising a tipping storage compartment closed on its upperpart by a wall provided with a lower rear part which supports a hydraulic pressure device for displacing garbage from the rear part into the storage chamber and means to move a swinging door disposed above the rea-r aperture of a garbage depositing chamber which extends underneath the bottom of the storage compartment, the swinging door being adapted to be placed in a position representing the extension of the bottom of the' tipping storage compartment, the hydraulic pressure device being provided with telescopic piston, means bearing a plate for forcing the collected garbage on said swinging door toward the transversal ber havin-g an arouated bottom which extends underneath the bottom of the storage compartment, the upperpart of the storage chamber is closed by a wall provided with a lower rear part which supports an obtuse angled swinging door disposed above said depositing chamber, hydraulic means for moving said swinging door from the outside of the depositing chamber into a straight line position with the bottom of the storage chamber, a hydraulic pressure device mounted on said lower rear part and provided with telescopic pressure means bearing-a plate for forcing the collected garbage on said swinging door towards the front wall of the storage compartment,selectively operating means for said hydraulic means Vand telescopic pressure means, the obtuse angled swinging door being provided on its upper pivoted arm with one or more closable openings and its lower free arm with supporting means for at least one garbage recipient.

3. A garbage collecting vehicle for the collection of house and street refuse according to claim l wherein the garbage depositing chamber is provided on its lower part with retaining means for an additional displaceable bottom.

4. A garbage collecting vehicle for the collection of 5 6 house and street refuse according to claim 1 and includ- 2,103,128 Walter Dec. 21, 1937 ing a tipping means which wil-1 laterally tip the storage 2,622,748 Feidert 1 Dec. 23, 1952 compartmentin a sidewise manner. 2,649,216 Gollnick Aug. 18, 1953 References Cited in the le of this patent 5 514 296 GORIITI PATENTS N 3 1939 i ea mtaln f ov. UNITED STATES PATENTS 474,041 yItaly Aug. 29, 1951 1,908,899 Kayel May 16, 1933 140,876 sweden 111119,16, 1953 2,084,656 Rottee June 22, 1937