JP2620552B2 - Road vacuum cleaner to collect garbage - Google Patents

Description

The present invention relates to a road cleaner for collecting refuse. Known types of road cleaners intended for cleaning large surfaces, such as roads, generally include a driver's cap and a mower before moving the refuse, and a mower on the road surface to prevent the levitation of dust. It has a storage tank for spraying water, a container for picking up debris from the road surface, and some brushes in direct contact with the road surface.

In each of the aforementioned types of machines, the desired requirements for continuous, multi-hour work daily are to supply particularly suitable areas and avoid frequent outages for loading and unloading garbage and refilling water. Due to the large capacity of containers and tanks for garbage. Also suitable is a driver's cap, where the driver does not suffer from excessive fatigue.

As for the brushes, the usual arrangement also includes a cup-shaped brush on both sides of each machine and a cylindrical brush or roller arranged substantially in the center of the machine and forming the main element of work on the road surface. is there.

The cup-shaped brush has at least two level-adjustable side brushes substantially within the outline of the machine, and for the purpose of directing material or debris to be removed to the bottom of the machine and towards the main center roller. Used.

The center roller is also generally adjustable in level and is used to sweep the road surface and to push all debris from the side brushes toward the interior of the debris container, including the center roller.

In the main case, the container is driven away from the main roller via a belt drive and is arranged to assist the debris transfer into the container by pushing up the pressing action of the main roller, and is particularly large in size. An auxiliary roller is provided inside the container to prevent waste from escaping from the place where the waste is contained.

Both the brushes and in particular the main center roller are provided with water spray nozzles, which are connected to the aforementioned storage tank and pump. The water sprayed on the road surface suppresses dust created by the cup-shaped brush and the rollers.

The flotation of the dust and the pushing action towards the typically dusty container take place in the same way, so that in particular an arrangement of sprinklers and a strong watering action at the actual position of the main center roller are defined. Dust also spreads in the area of the main center roller from the entrance to the garbage container.

Some road cleaners have one outside of two side brushes
It includes two additional or auxiliary brushes, which are arranged laterally forward of the frame and serve to collect debris from the side of the road or from the sidewalk. This additional brush directs debris toward the two side brushes and also moves easily out of the machine outline to a point that is difficult to clean with the two side brushes on the machine.

The first deficiency of these machines is that the machines become too large due to the requirements for large size waste containers, large capacity water storage tanks, comfortable driver cabs and waste directing devices. The huge ones are flawed because they reach all the points to be cleaned and hinder the quick maneuver to get past any obstacles.

Another deficiency of known types of vacuum cleaners is that the main center roller piles up debris in a nearby area within the container, despite the aid of a suitable device for the action of pushing the debris into the container. There is a tendency. Thus, the refuse is not deposited flat across the bottom of the container, not all of its capacity is available, and more refuse is deposited behind the entrance.

Furthermore, without water sprinkling equipment, rotating brushes and rollers can build up dust, spread through the air, and re-deposit on the ground later without being able to pour into containers. It should also be noted.

Furthermore, the use of water to reduce dust build-up in cold climates or during the winter results in a "varnish effect", ie, the formation of a thin ice layer.

As a minor defect, the additional brush is one of the machines
It is only applied to act on the side, so that it requires the operator, for example debris on the other side of the road with respect to the direction of movement of the vacuum cleaner, to be inconvenient and difficult to operate.

It is a technical aim of the present invention to provide a refuse collection road cleaner capable of substantially removing the above listed defects in view of the above-mentioned conditions.

Within this aim, an important object of the present invention is to provide a vacuum cleaner having a large mounting capacity and working area, but small in size.

Another important object is to provide a vacuum cleaner in which the refuse is loaded inside the container so that a favorable use of the available space can be made, and the work for loading the refuse is easily performed.

Still another object of the present invention is to arrange the entire garbage loading means in the garbage suction air flow so that the conveyor as the garbage loading means has an open structure through which the garbage suction air flow can penetrate, so that the air during operation can be interposed. It is an object of the present invention to provide a road cleaner capable of minimizing dust diffusion and collecting dust in a dust container.

It is another object of the present invention to provide a vacuum cleaner in which the amount of water sprayed for the work is very small, so that it can work well in cold regions or in winter.

It is an object of the present invention to provide a vacuum cleaner that can work over a large work surface that is clearly larger than a work surface that can be cleaned by a conventionally known vacuum cleaner and that can collect dust.

The technical objectives outlined are: a frame having a front portion and a rear portion; wheels supporting and moving the frame; and a driver's cap supported by the front portion of the frame. A waste container supported on a rear portion of the frame, a water storage tank and a waste conveyor supported on the frame, and contacting a road surface to be cleaned to direct the waste to the waste conveyor. A power-driven rotary brush supported on the frame,
A dust suction device supported on the frame for drawing in dust raised by the brush; wherein the conveyor has between its upper end communicating with the container and its lower end substantially at the same level as the brush. To
And a road surface in which the conveyor is an open structure to allow the passage of the resulting airflow across the conveyor, the garbage suction device communicating with the interior of the container to draw refuse through the conveyor. Achieved by a vacuum cleaner.

Further features and advantages of the present invention will become apparent from the following description of a preferred embodiment of a road cleaner of the present invention, as illustrated in the accompanying drawings.

〔Example〕

 In the figure, the vacuum cleaner of the present invention is indicated by 1.

Briefly, the vacuum cleaner 1 comprises a frame 2 having a front part 2a and a rear part 2b, the front part 2a being provided with a driver's cab 3 at the top and a road cleaning along a small bend at the bottom. It is formed rigidly with one steering wheel 4a for driving the machine 1.

The rear part 2b is provided at the top with a dust container 5 connected to a dust (dust) suction unit 6 and at the bottom with two appropriately powered drive wheels 4b. In the illustrated example, the motor is the frame 2 below the container 5.
Equipped to move a machine placed on top.

Between the cab 3 and the container 5, there is a refuse conveyor 7 for transporting refuse into the container 5.

The conveyor 7 is supplied by brushes 8 arranged below the frame 2 in contact with the road surface 9, and the road surface may also be a factory yard to be cleaned.

Between the cap 3 and the container 5 is also located a water storage tank 10 which forms part of a water discharge system as described below.

More specifically, the container 5 is a large-capacity body having a capacity of, for example, about 3 m ³ , and the swivel rod 11 (the seventh
(FIG.) And mounting on the frame 2 via at least one fluid-operated piston 12, which allows a local tilting and lifting action of the container 5 for unloading the refuse into a specially arranged container Have been. Unloading is accomplished through the bottom wall 14 by a dedicated unloading gate 13 located at the rear of the machine 1.

On the side remote from the bottom wall 14 is arranged a partition wall 15 which extends perpendicularly to the road surface 9 relatively close to the cabinet 3 and which has an opening 16 at the top. The container 5 has a roof having a removable part 18 connected to the waste suction unit 6.
f) Has 17.

The dust suction unit 6 is provided with a removable portion 18 of the roof 17.
Bank 19 of filters, turbine 20 mounted on frame 2, bank 19 and turbine
It consists of a suction conduit 21 extending between the 20 suction ports and mainly in the container 5.

Turbine 20 is adapted to maintain a vacuum inside container 5 connected to conveyor 7 through opening 16. As an example, a flow rate of about 2000 m ³ / h is planned for the turbine 20.

Filterbank 19, the porous fabric 22, made from an acrylic fabric having an area of filterable about 25 m ² until the particles of the particular 3 microns size, and the fabric pocket or by the action of Kahari link 23 formed by small rods Installed to form a bend.

The bends or pockets are vertical, and the links located at the lower level are engaged by a power-driven shaker 24, and the shaker 24 rotates dominating a cross piece 24a having a cam-shaped cross section, with each rotation Hit the bottom link 23 with.

The suction conduit 21 has two consecutive movable parts 21a, which are rigid and capable of ascending together with the container 5 (FIG. 7), and a second part 21b, rigid with the turbine 20 and attached to the frame 2. It is further divided into parts. An airtight rosette 25 engaged with the portion 21b is interposed between the two portions.

The conveyor 7 is close to the container 5,
It is substantially flat in the longitudinal direction of the road cleaner and extends almost over the width of the frame 2. Conveyor 7
Extends perpendicularly to the road surface 9 at a height between the bottom end level of the flange 8 and the top end level of the opening 16 formed by the partition wall 15.

The structure of the conveyor 7 is open, as shown in FIG. 2, to allow the suction air flow to pass through it, and is spaced apart from each other and pulled into a loop by two supporting and guiding chains 26. It is composed of A sprocket wheel 27 is power driven and meshes with the chain 26 to drive the chain.

A number of transport paddles 28 are attached to the chain 26 and are spaced apart from each other. A specially provided chain tensioning device (not shown) holds the chain pulled sufficiently to prevent any wobble of paddles 28.

The chain 26 and the sprocket wheel 27 are separated from each other by a group of paddles 28 arranged parallel to and separated from each other, and pick up the lower debris and throw it into the container 5 from the opening 16 above.
It is set so as to perform ascent and descent.

The transport channel 29 is adjacent to the conveyor 7 and is vertical. The transport channel 29 acts as a guide for the suction airflow flowing across the conveyor 7.

The wall of the transfer channel 29 is formed by the partition wall 15. Apart from the partition wall, a molding wall 30 having a flexible end bent to partially surround the transport channel 29
There is. It is actually characterized by a lower part 30a and an upper part 30b. The upper portion 30b can be swung outward to allow the container 5 to rise, and the lower portion 30a can be swung outward to allow the passage of debris, and is shown in FIG. Touching the garbage 2
It has two surfaces.

In fact, the surface that does not stand against the ground forms a guide or chute towards the conveyor 7 of the waste material.

The brushes 8 acting on the road surface 9 are located below the frame 2 and at the front and middle portions of the frame.

This includes two cup-shaped side brushes 31, a main center roller 32 having a rotation axis parallel to the road surface 9, and
And one additional auxiliary front brush 33 in the form of a cup.

The side brushes 31 rotate in opposite directions to direct dirt toward the center roller 32. The center roller 32 rotates in the opposite direction with respect to the wheels 4a, 4b which advance the machine 1 and is located rearward with respect to the lower end of the conveyor 7 and throws debris material towards the conveyor. The center roller 32 and the lower end of the conveyor 7 are
Longitudinal bulkhead 34 along the longitudinal side of the car (Figs. 6 and 7)
And a horizontal partition 35 at the rear of the center roller 32 (FIG. 1);
Lower part 30a of molding wall 30 in front of conveyor 7 (Figs. 1 and 2)
Note that it is bounded by

Naturally, the main roller 32 and the lower end of the conveyor 7 are inserted into the housing 36 which is substantially adjacent on the side surface by the flexible partition.

The auxiliary brush 33 can be moved by the operator between the separated space and the modified work area, across the front part 2a of the vacuum cleaner 1, as shown in FIGS. The movement is controlled via a drive 37 shown in FIGS. 8 and 9, which operates directly via an arm 38, which pivots the auxiliary brush 33.

The driving device 37 includes a slideway 39, a carriage 40, and a turning device 41.

The slide way 39 engages the entire front end of the frame 2 and extends across the entire width (FIG. 5) and is formed from a tubular element.

The carriage 40 is inserted into the slide way 39 and is armed via a small shaft 42 perpendicular to the road surface to be cleaned.
Supports 38 and houses therein a swivel device 41 acting on a small shaft 42. The carriage 40 is driven by a piston 43 outside the slide way 39.

The turning device 41 includes a gear 45 that is rigid with the shaft 42.
Arm 38 is fixed to a shaft 42, including a swivel cylinder 44 acting via a connecting rod 44a on the set.

As can be seen in detail in FIG. 8, the arm 38 has a shaft for adjusting the loading area and arm range of the auxiliary brush 33 to a position close to the machine outline at rest (FIG. 4). It has a first part 46 which can be positioned axially with respect to 42 and a terminal part defined by a quadrilateral linking device 47. The quadrilateral link device can swing in a vertical plane parallel to the small shaft 42, and the lower arm
48, an upper arm 49, a piston 50 for changing the position of the quadrilateral link device as a whole and the upper arm 49, and a lower side for changing only the inclination of the auxiliary brush 33. A member 51 for adjusting the length of the arm 48 is also provided.

A motor 52 directly mounted on the auxiliary brush 33 rotationally drives the brush during operation.

The tank 10 is flattened and substantially small in size with respect to the longitudinal direction of the machine, and is located close to the cabinet 3 to insulate both sound and heat from the conveyor 7.

The part of the water spray member also comprises, in a known manner, a pump, a gutter 53 for water and a number of nozzles 54. The nozzle then has a cup-shaped brush to reduce the build-up of dust (dust) and thus to eliminate the dust on the rollers 32 that has already been affected by the suction airflow.
Only 31,33 can advantageously provide water. The figure shows that the nozzle 54 is arranged on the brush along the girder 53 which is stretched circumferentially.

 The vacuum cleaner works as follows.

As shown in FIGS. 3, 4 and 5, the operator can place the auxiliary brush 33 in a desired position and simultaneously drive the machine forward, thereby simultaneously performing all necessary cleaning work on a wide road surface. I can do it.

Specifically, the operator can set the correct height of the auxiliary brush 33 on the road surface by operating the quadrilateral link device 47.
It can be set by the operation of the piston 50 that changes the position of the lower arm 49 and 49.

If the arms 48 and 49 are of different lengths, the inclination of the auxiliary brush 33 will vary with its height on the road surface, but in any case, the worker will have the correct inclination of the auxiliary brush 33 with respect to the road surface. The member 51 can also be adjusted to set
As a result, the dirt material is directed towards the side brush 31 and then towards the rollers 32 after passing under the flexible lower part 30a of the molding wall 30.

The rollers 32 rotate in the opposite direction to the forward direction of the wheel and, as a result, throw away the received debris forward, on the lower part 30a the action of the lower end of the conveyor 7 and its paddles 28. Move within range.

The paddles 28 separate from the rollers 32 and follow the pickup path,
Then, the mold wall 30 is raised without being in contact with the mold wall 30.
The vertical rise allows the transport of waste material by paddle 28,
Also, it is not necessary to lean against the molding wall 30, and as a result, the frictional force is minimized, and high-speed operation can be achieved.

The ascending run carries the debris higher with respect to the loading platform of the container 5, thereby allowing full utilization of the possible loading capacity. Even if the container is almost full, the conveyor can still carry on loading.

Thereafter, as shown in FIG. 1, the distance that the dust is thrown into the container 5 through the opening 16 is covered, and then the paddle 28 returns to the roller 32 ending its descending path.

The loading operation is also greatly facilitated by the strong suction airflow which directs dirt and other substances into the container 5. The air flow is generated by a turbine 20 that draws air from inside the container 5 through a filter set 19. The filter set keeps the trash out of the machine.

Due to the open structure allowing the free passage of the air flow of the conveyor 7 despite the presence of the conveyor 7, the transport channel 29 surrounding the outside of the conveyor, and the cooperation of the rollers 32 and the housing 36 closing the lower end of the conveyor, the air flow Also acts on the level of the road 9 to be cleaned, and a strong suction air flow acts on the entire refuse transport path including the conveyor 7 from the cleaning road 9 to the inside of the container 5. In practice, a wide suction assembly extends from the container 5 to the road surface 9 and initially surrounds the conveyor 7 and the rollers 32.

The presence of the turbine 20 does not impede the container 5 and does not impede the tilting movement of the container, due to the presence of the suction conduit divided into two parts which can be removed from each other.

The efficacy provided by the strong suction eliminates the need to sprinkle abundant water on the road surface 9 to hold down dust. It can also be provided that the nozzle is arranged only on the cup-shaped brushes 31 and 33. Thus, on the one hand, the virtual elimination of the defects associated with spraying the road with water and, on the other hand, the possibility of making the tank 10 relatively small make the vacuum cleaner smaller. Achieved that. The location of the tank is also useful for isolating the cab 3.

The reduction in size is also achieved by the flat vertical shape of the tank 10 and the conveyor 7 and thereby the conveyor 7
Also allows the use of a tall designed container 5 because it is fed from the top.

The arrangement of conveyors, tanks, brushes and turbines also has the advantage that these members do not come into close contact with the wheels, do not protrude from the outline of the machine (except for the discussion of the auxiliary brushes 33) and do not interfere with the lifting of the container 5.

Where the container 5 is installed with good plumbing, good drainage, and an associated suction pump for the plumbing, the emerging suction airflow created by the turbine 20 will also cause the suction action of the turbine to increase. Since the piping adds to the action of the pump, these operations can be performed with high efficiency and can be easily performed.

[Brief description of the drawings]

FIG. 1 is a partially cut-away side view of the vacuum cleaner of the present invention. FIG. 2 is a partially cutaway perspective view of the vacuum cleaner of FIG. FIG. 3 is a diagram showing a combined use mode of the action area and the area of the brush of the machine. FIGS. 4, 5, and 6 are a plan view, a front view, and a side view, respectively, showing the setting operation of the kind of the auxiliary front brush. FIG. 7 shows how a garbage container can be raised and tilted for unloading action. 8 and 9 are a longitudinal sectional view in a longitudinal direction and a partially cut-away plan view, each showing a driving device relating to an auxiliary front brush. 2: Frame, 3: Cab, 4a, 4b: Wheel, 5: Garbage container, 6: Suction device, 7: Conveyor, 9: Road surface, 10: Water storage tank, 15: Partition wall, 16: Opening, 19: Bank , 20: Turbine, 21: Suction conduit, 25: Sealed rose, 26: Chain, 27: Sprocket wheel, 28: Paddle, 29: Conveyance channel, 30: Molding wall, 31: Side brush, 32: Center roller, 33: Front brush, 38: arm, 39: slide way, 40: carriage, 47: quadrilateral link device, 54: nozzle.

Claims (12)

(57) [Claims] 1. A frame (2) having a front part (2a) and a rear part (2b), wheels (4a, 4b) supporting and moving the frame (2), and a front part of the frame (2). A driver's cab (3) supported on part (2a), a garbage container (5) supported on a rear part (2b) of the frame (2) and a garbage container (5) supported on the frame (2). Power drive supported on the frame (2) in contact with the water storage tank (10), the refuse conveyor (7), and the road surface (9) to be cleaned to direct the refuse to the refuse conveyor (7). A rotating brush (8) and a dust suction device (6) supported on the frame to draw in the dust set up by the brush; the conveyor (7) having its upper end in communication with a container (5). And between the brush (8) and its lower end at substantially the same level The conveyor (7) is open and allows the resulting airflow to pass across the conveyor (7), as a result of the dust suction device (6); A road cleaner (1) for collecting garbage, characterized in that it is in communication with the interior of a container (5) for drawing garbage through a conveyor (7). 2. The tank (10) and the conveyor (7) are installed side by side, and are reduced in size with respect to the longitudinal direction of the machine (1), and practically fill the width of the frame (2). Extending transversely, and wherein the tank (10) is positioned proximate to the cab (3) and the conveyor (7) is positioned proximate to the partition (15) of the container (5). The vacuum cleaner according to claim 1, 3. The conveyor (7) includes a plurality of transport paddles (28) spaced from one another, a plurality of chains (26) mounted on the paddles (28), and a plurality of chains (26). A plurality of meshing sprocket wheels (27),
At least one of the sprocket wheels (27) is driven by power, and the conveyor (7) having a chain (26) and a sprocket wheel (27) is driven by a paddle (28).
Claims characterized by defining an uphill run and a downhill run spaced apart from each other, picking up trash at the bottom of the run and throwing trash into the container (5) at the top of the run. The vacuum cleaner according to 1. 4. The conveyor (7) extends substantially perpendicular to the road surface (9) to be cleaned, and the transport channel (29) acts as a guide for the airflow flowing across the conveyor (7). A vacuum cleaner according to claim 3, characterized in that it is provided so as to surround at least the up and down travel of the paddle (28). 5. A transport channel (29) comprising a molding wall (30) standing on the side of the upstroke of the paddle (28) and defining a dirt guide at the lower end of the conveyor (7). The vacuum cleaner according to claim 4, characterized in that: 6. The refuse suction device (6) includes a frame (2).
A turbine (20) fixed to a rear part (2b) of the container, a suction conduit (21) extending between the turbine (20) and the container (5), and a high position in the container (5). At least one filter bank (19), wherein a first side of the filter bank (19) communicates with the interior of the container and a second side communicates with the suction conduit (21). The vacuum cleaner according to claim 1, 7. A perforated cloth (22) in which said filter bank (19) is held in a bent state, a plurality of links (23) for engaging said cloth (22), and action on said links (23). 7. A vacuum cleaner according to claim 6, wherein the vacuum cleaner is defined by a power-driven shaker (24). 8. A first part (21a) wherein said container (5) is controllable and tiltable and said suction conduit (21) is movable with said container; and said turbine (20). And a rigid second part (21b) and both parts (2
7. A vacuum cleaner according to claim 6, comprising a sealing rose (25) inserted between 1a, 21b). 9. A main center roller (3) for the brush (8) to throw dust toward the lower end of the conveyor (7).
2) and below the frame (2), bounded laterally and with the rollers (32) and the conveyor (7)
2. A vacuum cleaner according to claim 1, further comprising a housing for accommodating the lower end of the vacuum cleaner. 10. The roller (32) rotates in the opposite direction to the forward movement direction of the wheels (4a, 4b), and is disposed behind the lower end of the conveyor (7) with respect to the forward movement direction. And the molding wall (30) partially surrounds the conveyor (7) by its surface furthest from the roller (32),
10. A vacuum cleaner according to claim 9, wherein the end of the molding wall is inclined towards the rollers (32) to limit the dirt guide to the conveyor (7). 11. The brush (8) includes a main center roller (32) for throwing debris toward the conveyor (7), and a brush disposed below the frame (2) and on the main center roller (32). 2. A brush according to claim 1, comprising two side brushes (31) for directing and an auxiliary front brush (33) which can be positioned across the front part (2a) of the frame (2) by control. Vacuum cleaner. 12. A slideway (39) extending along and across the front portion (2a) of the frame (2) for controllably positioning the auxiliary brush (33); A carriage (40) movable along the carriage (39), a piston (43) for driving the carriage (40), and substantially perpendicular to the road surface (9) to be cleaned; ), And a swivel device carried by the carriage (40) and adapted to rotate the small shaft (42) about an axis, and swing in a vertical plane. An arm (38) including a quadrilateral link device (47) and rotatably supporting the auxiliary brush (33); and a rotary motor directly connected to the brush (33) for rotating the auxiliary brush (33). (52)
12. The vacuum cleaner according to claim 11, comprising: