JPS62286B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a beach cleaning device that utilizes centrifugal force.

Conventional beach cleaning equipment that uses centrifugal force releases the sand from which trash has been removed directly to the outside through the entire net of the rotating body and scatters it around the entire outer circumference, so as the cleaning equipment moves, the same sand is not duplicated. The drawback was that not only was the trash disposed of, but also the trash exposed on the sand was buried. Furthermore, regarding the ability to collect trash, because the rotating body stood upright relative to the raking plate, the sand did not flow smoothly into the rotating body, and the raking blades, which had a large surface area and stood upright, created resistance to raking by themselves. However, since there was no mechanism for transporting the separated trash, there was also the drawback that the trash could not be completely fed into the trash storage box. Furthermore, V
Due to the uneven ground on the letter-shaped scraping board,
Another problem is that the cleaning depth tends to be uneven.

The object of the present invention is to solve the above problems and provide a beach cleaning device that has high cleaning efficiency and can provide a uniform cleaning effect.

First, a beach cleaning device 1 according to a first embodiment will be explained. FIG. 1 is an explanatory diagram of the state in which the beach cleaning device 1 is attached to the front part of a tractor 2. The beach cleaning device 1 is attached to a lift arm device 3 of a tractor 2 via an attaching device 4. Utilizing the lifting and lowering functions and forward tilting functions of the lift arm device 3,
The beach cleaning device 1 can be operated to the required height and inclination.

The specific structure is shown in FIGS. 2 and 3. The various parts of this device are attached to a frame 20 at the center. The frame body 20 has a flat plate 20a and a pair of side plates 20b.
are welded to the rear ends of the side plates 20b on both sides.
0c is welded. Beach cleaning equipment 1 and tractor 2
A mounting machine 4 that connects the lift arm device 3 is fixed to the horizontal plate 20c.

In the drive mechanism for rotating the mortar-shaped hollow rotating body 11, a drive shaft 21 is supported in the center of a flat plate 20a of the ram frame 20 via a bearing 21a, and the upper part of the drive shaft 21 protrudes from the cutout of the flat plate 20a. A reduction gear 23 and a prime mover 24 are fixedly installed on a stand arranged side by side on a flat plate 20a, and a drive shaft 21 and an output shaft of the reduction gear 23 are connected to a coupling device 22 via keys 22a and 22b. The reduction gear 23 and the prime mover 24 are connected by a known method.

A mortar-shaped hollow rotating body 11 having a large diameter part on the upper side and a small diameter part on the lower side has a peripheral wall made of metal mesh,
A hollow rotating body 1 whose central axis is a plurality of instruction arms 16
7 and the inner peripheral surface of the rotating body 11, and a bolt 1 is connected to the drive shaft 21 fitted into the rotating body 17.
8. It is fixed by a collar 19, bolts 25, and nuts 26. In this example, the indicator arm 16 is a tube with a circular cross section.

A plurality of scraping blades 1 are fixed axially symmetrically to the rotating body 17 near the lower edge of the inner peripheral surface of the hollow rotating body.
Reference numeral 3 denotes an inclined plate having a front end facing downward and a rear end facing upward with respect to the rotating body direction of the rotating body 11, and has an upwardly convex curved surface. A plurality of sand feeding blades 14 are provided on the outer circumferential surface of the rotating body 11 at appropriate intervals to project outward. Multiple garbage feeding blades 1
5 is axially symmetrical with respect to the rotating body 17, with its inner lower edge fixed to the upper edge of the rotating body 11, and protruding outward.

The enclosure 27 and the housing section 31 are connected to a plurality of holding machines 40.
It is fixed as one piece to the bottom surface of the flat plate 20a of the frame body 20.

The enclosure 27 surrounds the outer periphery of the peripheral wall of the rotating body 11 with a slight gap between it and the sand feeding blade 14, and is connected to an inclined plate 27a located on the lower side and extending obliquely upward from the inclined plate 27a. It is constituted by a vertical plate 27b extending upward. The sand discharge ports are opened at appropriate intervals at the rear and sides of the enclosure 27, but in this example, the sand discharge ports
1 rotates counterclockwise, the sand discharge port 28 is opened on the left side of the inclined plate 27a, and the other sand discharge port 2
8a, 28b, 28c, 28d, and 28e are opened at the rear to limit the sand removal area (see Figure 5).

The storage part 31 surrounds the upper edge of the hollow rotating body 11 with a slight gap between it and the dust feed blade 15, and the inner peripheral part of the bottom plate 31a is fixed to the vertical plate 27a, and the pair of A guide plate 31b is fixed perpendicularly to the outer edge of the bottom plate 31a (see FIG. 4).
The upper edge of b and the bottom of the flat plate 20a are in close contact.

The scraping body 41 is attached to the lower edge of the inclined plate 27a, and is composed of a curved portion 41b surrounding the rear half of the lower edge of the hollow rotating body 11, and a pair of scraping plates 41a expanding forward from the curved portion 41b. The rotating shaft 17 of the rotating body 11 is inclined backward at an inclination angle of 50° to 70° with respect to the horizontal line formed by the lower edge of the scraping body 41, and the hollow rotating body 11 is tilted upward at the front. The lower edge opening is a hollow rotating body 11
It serves as an inlet for sand inside.

A pair of garbage storage boxes 32 are suspended from the frame 20 in contact with both sides of the storage section 31. Each wall surface is made of wire mesh, the side surfaces are rectangular, an intake port 32a for taking in the garbage from the storage section 31 is provided on the inner side, and a door 32b for taking out the garbage is provided on the front side.

Next, FIG. 6 shows a second embodiment. The beach cleaning device 1a uses a screw as a scraping mechanism. The screw type scraping structure 42 is the screw 4
3, an outer frame 44 surrounding the screw 43, and a hydraulic motor 46 for driving the screw 43. The outer frame body 44 pivotally supports the rotating body of the screw 43 on both sides thereof, and surrounds both sides of the screw 43 and the outside of the guide frame body 45 on the top and rear surfaces.

The guide frame body 45 includes a curved portion 45a surrounding the rear half of the lower edge of the hollow rotating body 11, and a pair of side plates 45b and both side plates 45b provided forward from the curved portion 45a.
It is composed of a cover plate 45c having both ends at the upper edge of the cover plate 45c. The front end of the guide frame 45 is fixed to the rear surface of the outer frame 44, and the upper edge of the curved part 45a is connected to the inclined plate 2.
7a.

In the beach cleaning device 1a, a hydraulic motor 47 is mounted as a drive mechanism for the hollow rotary body 11, and the drive hydraulic pressure can be easily supplied from the tractor 2 together with the hydraulic motor 46 for the screw. The other configurations are the same as the beach cleaning device 1 of the first embodiment.

The operation of the first embodiment will be explained with reference to FIG.

First, by driving the prime mover 24 to rotate the rotating body 11 and then operating the lift arm device 3 of the tractor 2, the raking body 4 of the beach cleaning device 1 is
1 horizontally on the sand and sink from there to the target cleaning depth. In this state, move forward in the direction of arrow F.

Now, as the beach cleaning device 1 moves forward in the F direction in the action explanatory diagram of FIG. 4, the scraping plate 41a scrapes up sand mixed with dirt and guides it to the lower edge opening of the hollow rotating body 11. Since this lower edge is upward-sloping, the sand penetrates to the inside of the rotating body 11, where it is given centrifugal force by the scraping blades 13.
Due to the upward component of this centrifugal force along the inner peripheral surface,
As shown by arrow G, the rotating body 11 begins to rotate upward along the inner circumferential surface. While the sand is being released from the metal net 12 during the upward movement, the objects remaining inside the rotating body 11 (hereinafter referred to as dust) continue to be supplied with centrifugal force from the metal net 12, which acts as a friction plate, and are pushed to the upper edge of the rotating body 11. reach. The garbage that has reached the upper edge is further accelerated by the garbage sending blade 15, guided by the guide plate 31b of the storage section 31, passes over the bottom plate 31a as shown by arrow G', and enters the garbage storage box 32 from the intake port 32a. Completely stored.

On the other hand, the majority of the released sand is once removed from the enclosure 27.
The sand feeding blade 14 is received as shown by the broken line arrow S.
The sand is guided to the sand discharge port 28 and discharged. The remaining sand is directly discharged from multiple sand outlets. In this example, since the rotating body 11 rotates to the left, the sand outlet 28 is provided on the left side as shown in FIG. 5, and the sand outlet 28a, 28b, 28 provided on the rear side
Together with d and 28e, it is possible to evenly remove sand from the passage surface through which the beach cleaning machine 1 has passed, as indicated by the broken line arrow S'.

In the case of the beach cleaning machine 1a of the second embodiment, the screw-type raking structure 42 scrapes up sand and sends it into the hollow rotating body 11, and the following operations are the same as in the previous example.

This invention is unique in that it maximizes the effects of centrifugal force, which is used to lift objects, store trash, and remove sand. First of all, the scraping blade is installed only near the lower edge and has an upwardly convex curved surface, which minimizes the resistance of the scraping blade itself against vortex motion, and the support arm also has a curved cross-section with low resistance. By doing so, a large stirring effect was obtained.

Next, by forcibly sending the garbage into the garbage storage box using the garbage sending blade, it is possible to prevent the accumulation of garbage in the storage section from interfering with the operation of the entire device.

Thirdly, by providing an enclosure with a sand discharge port and a sand feeding blade, and by tilting the rotating shaft backward, the sand from which dust has been removed can be removed only onto the surface to be cleaned after passing through the cleaning machine. succeeded in.

Regarding sand raking, by setting the angle between the hollow rotating body and the raking plate at a backward angle of 50° to 70°, it became possible to send sand smoothly into the inside of the hollow rotating body. Furthermore, when using a screw-type raking structure, the raking part and the raking part are close together, so it is less affected by surface irregularities than the raking plate, and sand is reliably raked to the center of the device at a constant depth. can be done.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the use state of the first embodiment of this invention, Fig. 2 is a perspective view of this beach cleaning device, Fig. 3 is a longitudinal cross-sectional view, and Fig. 4 is an explanatory diagram of the operation, showing the upper part of the sand frame. Diagram with the drive mechanism and left garbage storage box removed,
FIG. 5 is an explanatory view of the operation in a horizontal cross section of the sand discharge port, and FIG. 6 is a perspective view of the second embodiment. 13... Raising blade, 14... Sand feeding blade, 15
...Garbage sending blade, 16... Support arm, 41... Scraping body, 42... Screw type scraping structure.

Claims (1)

[Scope of Claims] 1. A mortar-shaped hollow rotating body having a large diameter part on the upper side and a small diameter part on the lower side, and this rotating body has a peripheral wall part made of a metal mesh or a perforated plate, and the peripheral wall part A plurality of sand-feeding blades projecting outward are arranged around the outer peripheral surface at appropriate intervals, and both the upper edge on the large diameter side and the lower edge on the small diameter side are open. a drive shaft located at the center of the rotating body; the drive shaft extending upward from approximately the center of the rotating body; a drive mechanism located above the drive shaft; and a drive mechanism located above the rotating body; a support arm connecting the body and the drive shaft;
One side of the support arm is attached to the inner circumferential surface of the peripheral wall of the rotating body, and the other side is attached to the lower part of the rotating shaft into which the drive shaft is inserted, and the support arm is attached to the inner circumferential surface of the rotating body to the rotating shaft. On the other hand, a plurality of scraping blades are attached axially symmetrically, and the scraping blades are inclined plates with the front end facing down and the rear end facing up with respect to the rotational direction of the rotating body, and the surface facing upward. It has a convex curved surface, its outer peripheral part is fixed to the inner peripheral surface near the lower edge of the rotating body, and is attached to the upper edge of the rotating body axially symmetrically with respect to the rotation axis of the rotating body. A plurality of dust feeding blades, each of which has an inner lower edge fixed to an upper edge of the rotary body and protrudes outward, and is attached to an opening at the lower edge of the rotary body. a scraping body; the scraping body is composed of a curved portion surrounding approximately half the circumference of the lower edge; and a scraping plate expanding forward from the curved portion; and an enclosure surrounding the outer periphery of the peripheral wall of the rotary body. body and
This enclosure is composed of an inclined plate that is fixed to the outer periphery of the lower part of the peripheral wall and extends obliquely upward, and a vertical plate that extends upward from the inclined plate. A storage part surrounding the upper edge of the rotating body, a bottom plate whose inner periphery is fixed to the vertical plate of the enclosure, and an outer periphery of the bottom plate. It is composed of a pair of guide plates that are planted opposite to each other, and a frame body is installed above the pair of guide plates, and the bottom surface of this frame body is located at the upper edge of the guide plate. It is composed of a flat plate in close contact with the flat plate, a pair of flat plates installed on the flat plate, and a horizontal plate connecting the flat plates.The driving mechanism is placed in the center of the flat plate, and the central part is located above the drive shaft. A garbage storage box is provided on both sides of the storage portion, and an opening on the inside of the garbage storage box matches the gap formed by both ends of the pair of guide plates to form a frame. The beach cleaning device is formed by a rectangular casing that hangs down from the body, and has the above-described configuration. By driving, the scraping blade causes the objects inside the rotating body to generate a vortex swirling motion to separate and remove the sand, and at the same time, the upward component force along the slope of the centrifugal force directed outward of the rotating body causes the sand to be separated and removed. A beach cleaning device that is characterized by rotating and lifting only the remaining objects to accommodate them. 2 Place the mortar-shaped rotating body at an angle of 50° to 70° to the scraping board.
2. The beach cleaning device according to claim 1, wherein the device is tilted rearward at an angle of inclination in the range of .degree. 3. A mortar-shaped hollow rotating body having a large diameter part on the upper side and a small diameter part on the lower side, and this rotating body has a peripheral wall part made of a metal net or a perforated plate, and the outer peripheral surface of the peripheral wall part has an appropriate A plurality of sand feeding blades protruding outward at intervals are provided around the circumference, and both the upper edge on the large diameter side and the lower edge on the small diameter side are opened, and the rotation a drive shaft located at the center of the body; the drive shaft extending upward from approximately the center of the rotating body; a drive mechanism located at the center of the rotating body; and the rotating body and the drive mechanism. a support arm that connects the rotary body, and the support arm has one side attached to the inner circumferential surface of the peripheral wall of the rotating body, and the other side attached to the lower part of the rotating shaft into which the drive shaft is inserted, a plurality of scraping blades attached to an inner circumferential surface axially symmetrically with respect to the rotation axis, and the scraping blades are inclined with the front end facing down and the rear end facing up with respect to the rotational direction of the rotating body. A plate having an upwardly convex curved surface, the outer part of which is fixed to the inner circumferential surface near the lower edge of the rotary body, and the rotation axis of the rotary body is attached to the upper edge of the rotary body. A plurality of dust sending blades are attached axially symmetrically to the rotating body, and the inside of the lower edge of the dust feeding blade is fixed to the upper edge of the rotating body and protrudes outward. A guide frame attached to the opening at the lower edge of the body, a curved part surrounding approximately half the circumference of the lower edge, a pair of side plates provided forward from the curved part, and the upper edges of these side plates at both ends. a screw-type scraping structure provided in front of the guide frame; this scraping structure consists of a box-shaped outer frame attached to the front end of the guide frame; an enclosure body that is constituted by a screw body that is pivotally supported by both ends of the outer frame body and housed in the outer frame body, and that surrounds the outer periphery of the peripheral wall portion of the rotating body;
This enclosure is composed of an inclined plate that is fixed to the outer periphery of the lower part of the peripheral wall and extends obliquely upward, and a vertical plate that extends upward from the inclined plate. A storage part surrounding the upper edge of the rotary body, a bottom plate whose inner circumference is fixed to a vertical plate of the front enclosure, and a bottom plate formed of the bottom plate. It is composed of a pair of guide plates that are planted opposite to each other on the outer periphery, and a frame body is installed above the pair of guide plates, and the bottom surface of this frame body is the upper edge of the guide plate. It is composed of a flat plate that is in close contact with the drive shaft, a pair of flat plates installed on the flat plate, and a horizontal plate that connects the flat plates. The upper part is supported, and the garbage storage box is provided on both sides of the storage part, and the opening on the inside of the garbage storage box matches the gap formed by both ends of the pair of guide plates. The beach cleaning device is formed by a rectangular casing that hangs down from a frame body, and has the above-described configuration, in which objects near the ground surface are sent to the rotating body by the screw-type raking structure, and the rotating body By driving the body to rotate, the scraping blades cause the object inside the rotating body to generate a whirlpool movement to separate and remove the sand, and at the same time, the centrifugal force is directed upward along the slope of the rotating body toward the outside. A beach cleaning device that is characterized by rotating and raising only the objects left behind by force and storing them therein.