JPH11229338A - Beach cleaner - Google Patents

Abstract

(57) [Summary] [Problem] There is no accumulation of sand at the front of the vehicle like a mountain,
To provide a beach cleaner that can efficiently clean sand. A beach cleaner provided with a screen conveyor having a cutting edge, wherein a driving blade provided above the cutting edge is forcibly rotated by a driving cylinder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is directed to recovering garbage such as seagrass, driftwood, or empty cans scattered on a wide sandy surface such as a beach or buried in a relatively shallow second of such sandy land. About beach cleaners.

[0002]

2. Description of the Related Art Conventionally, there has been known a self-propelled beach cleaner which separates sand excavated at a cutting edge while moving by a vibrating screen conveyor into sand and dust.

[0003]

However, sand accumulates like a mountain in front of the screen conveyor due to the sand quality of the sandy ground being cleaned, the running speed of the beach cleaner, or the digging depth of the cutting edge. A situation may occur in which sand cannot be scooped on the screen conveyor. In this case, it is necessary to perform an adjustment such as once stopping the cleaning work and re-adjusting the excavation depth of the cutting edge, and it has been difficult to efficiently perform the work.

An object of the present invention is to provide a beach cleaner free of such a problem.

[0005]

That is, a beach cleaner according to the present invention is a beach cleaner having a screen conveyor with a cutting edge, wherein a scraping blade is rotatably provided above the cutting edge, and
The swirling blade is forcibly rotated by a swirling cylinder.

When the above-mentioned swirling blade is rotated,
While the pile of sand accumulated in front of the screen conveyor can be dismantled, the sand can be scooped on the screen conveyor. Further, when the cutting edge approaches the rotational movement area A of the swirling blade, by stopping the swirling blade at the work start position,
The collision between the two can be prevented.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 5, the beach cleaner 1 of the present invention includes a pair of right and left crawlers 2 so that the beach cleaner 1 can travel freely on a sand surface (not shown). The operation of this beach cleaner 1 and the cutting depth H of the cutting edge
Adjustment of the start-up cycle T (second) of the scraping blade and the time setting of the work continuation time t (second) per one time are performed on the vehicle body 4.
The operation is performed in the cab 3 (see FIG. 4) provided in the front of the vehicle.

As shown in FIG. 2, an endless screen conveyor 6 supported by a conveyor frame 5 is rotatably provided at the center of the vehicle body 4. The screen conveyor 6 is vibrated by an eccentric sprocket 7. The conveyor frame 5 has a front part 8
And the rear part 9, the front part 8 can rotate about the shaft 10. The rotation of the conveyor frame front part 8 is performed by a screen elevating cylinder 11.

As shown in FIG. 1, a plate-like cutting edge 12 is attached to the front end of the conveyor frame front portion 8. A bottom plate 13 is attached below the cutting edge 12 so as to form a V-shape in a side view. Also, as shown in FIG. 3, plows 14 are provided at the front ends of the conveyor frame front portions 8, respectively. As shown in FIG. 3, the pair of left and right plows extends right and left toward the front of the vehicle body.

On the other hand, as shown in FIG. 1, a scraping device 15 is provided above the cutting edge 12.
The rake device 15 includes a plate-like rake blade 16.
And two arms 17 fixed to the back side of the scraping blade 16, and the arm 17 is rotatably supported by a support 18 fixed to the lower surface of the vehicle body 4. Further, a driving cylinder 19 is attached between the rear end of the arm 17 and the vehicle body 4, and by moving the rod 20 of the driving cylinder 19 in and out, the driving blade 16 is moved to a position a indicated by a solid line and a position b indicated by a two-dot chain line. It turns between. The arm 17 is formed in a hook-like shape so as to be rotated by inserting and removing the rod 20 of the pushing cylinder.

The stroke of the rod 20 is determined by two limit switches (not shown) arranged before and after the ram cylinder 19. In addition, the cutting edge 12 is rotated by the swirling blade 16 in the rotational movement range A.
, The cutting edge 12 is stopped in place by the interlock to prevent collision between the cutting edge 12 and the biting blade 16. The prevention of such collision between the two is avoided by the limit switch 21.

Next, the operation of the scraping device will be described. Prior to the sand work, the operating period T (seconds) of the scraping blade and the operation duration t per operation are determined in advance.
(Seconds) is set, and the excavation depth H of the cutting edge is adjusted while performing the cleaning operation. When the beach cleaner 1 travels at a predetermined traveling speed, the sand scooped up by the cutting edge 12 rides on the screen conveyor 6 behind the cutting edge together with garbage, and falls from the mesh of the screen conveyor 6 onto the sand surface. On the other hand, the refuse is transported rearward by the screen conveyor 6 and is thrown into the hopper 22 provided at the rear end of the conveyor frame 5.

Then, at the start time of the writing device,
When the squeezing cylinder 19 is operated for a predetermined time t (second), the squeezing blade 16 of the squeezing device 15 reciprocates between the position a indicated by the solid line and the position b indicated by the two-dot chain line and accumulates at the front of the vehicle body. The sand is scraped on the screen conveyor 6. When the refuse in the hopper 22 is full, the cleaning operation is temporarily stopped and the refuse is transported to a predetermined location. In this case, the cutting blade 12 is returned to the initial position a while the cutting edge 12 is raised to the position indicated by the arrow c (see FIG. 1).

[0014]

As described above, according to the present invention, in a beach cleaner having a screen conveyor with a cutting edge, a scraping blade is rotatably provided above the cutting edge, and the scraping blade is forcibly moved by a scraping cylinder. , The sand does not accumulate at the front of the vehicle body like a mountain, and the sand can be efficiently cleaned.

Further, when the cutting edge approaches the rotational movement area A of the wiping blade, the collision between the two can be prevented by stopping the wiping blade at the work start position.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a main part of a beach cleaner according to the present invention.

FIG. 2 is a side view showing a main part of the beach cleaner according to the present invention.

FIG. 3 is a plan view showing a main part of the beach cleaner according to the present invention.

FIG. 4 is a side view of the beach cleaner according to the present invention.

FIG. 5 is a front view of the beach cleaner according to the present invention.

[Explanation of symbols]

1 Beach Cleaner 6 Screen Conveyor 12 Cutting Edge 16 Scraping Blade 19 Scraping Cylinder

Claims (2)

[Claims] 1. A beach cleaner having a screen conveyor with a cutting edge, wherein a swirling blade is rotatably provided above the cutting edge and the swirling blade is forcibly rotated by a swirling cylinder. 2. The beach cleaner according to claim 1, wherein when the cutting edge approaches the rotational movement area A of the driving blade, the driving blade is stopped at the work start position.