AU764050B2 - Beach stamping roller and beach cleaner employing the same - Google Patents

Description

S&F Ref: 539769

AUSTRALIA

PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT

ORIGINAL

Name and Address of Applicant: Actual Inventor(s): Address for Service: Kawajyu Yachiyo Engineering Ltd.

1780 Kamikoya, Yachiyo City Chiba Pref. 276-0022 Japan Hiroo Hasegawa and Shinya Tabata Spruson Ferguson St Martins Tower,Level 31 Market Street Sydney NSW 2000 Beach Stamping Roller and Beach Cleaner Employing the Same Invention Title: The following statement is a full description of this invention, including the best method of performing it known to me/us:- EVLSh 5845c -1- BEACH STAMPING ROLLER AND BEACH CLEANER EMPLOYING THE

SAME

The present invention relates to a beach stamping roller which can announce to user that a beach has been cleaned, and a beach cleaner employing the same.

Conventionally, no such beach stamping roller and a beach cleaner employing the same has been known.

Normally, upon use of the beach, an autonomous body, volunteers and so forth clean up the beach by removing foreign matter manually or by means of a beach cleaner.

However, users has no way to know whether the beach has been cleaned or not. Therefore, users usually uses the beach with some fear 15 about the foreign matter on the beach.

*::oo Therefore, it is a primary object of the present invention to provide a beach stamping roller and a beach cleaner employing the same, which 0ooo beach stamping roller may announce that the beach has been cleaned 0* 20 and also announce advertisement of corporation or the like to a user.

0*0 In order to accomplish the above-mentioned and other objects, a beach stamping roller according to one aspect of the present invention, comprises: -2a roller frame in circular, elliptic or quadrangular shape in plan view and detachably connected to a traction vehicle or a beach cleaner which is towed by the traction vehicle or which is self-propelling; a pressure drum rotatably mounted on the roller frame through a horizontal shaft; and a stamping plate detachably mounted on the outer periphery of the pressure drum and formed with a message and/or a logotype for stamping the message and/or logotype on the sand in cleaned beach.

In the preferred construction, the beach stamping roller may further comprise a leveling brush mounting on the roller frame at front side of the pressure drum in height adjustable fashion and having at least a comparable width with the pressure drum for leveling the same of the cleaned beach.

Also, the beach stamping roller may further comprise a cleaning 15 brush mounted on the roller frame at front and/or rear sides of the pressure drum for cleaning the stamping plate.

o..

According to another aspect of the present invention, a beach o 0 cleaner comprises: a machine frame adapted for self-propelling or for towing by a °oooo o 20 traction vehicle; a screen arranged at the center portion of the machine frame in frontwardly descending position, and being consisted of a plurality of filter forming members formed with soft type material for filtering foreign matter from the sand with moving the sand rearwardly by rotating a -3plurality of shafts carrying the filter forming members; a scraper arranged in continuation with a front end of the screen and adapted for penetration a front end thereof into the sand; a sand pit-run device arranged at front side of the scraper and pitting run the sand admixed with the foreign matter rearwardly by rotating a rotor with a plurality of pit-run plates extended radially from the outer periphery of the rotor; a dust box receiving filtered out substance of the screen; a roller frame in circular, elliptic or quadrangular shape in plan view and detachably connected to a rear portion of the machine frame and positioned behind the dust box; a pressure drum rotatably mounted on the roller frame through a horizontal shaft; and a stamping plate detachably mounted on the outer periphery of 1. 0 the pressure drum and formed with a message and/or a logotype for stamping the message and/or logotype on the sand in cleaned beach.

oooo° In the preferred construction, the beach cleaner may further ooooo comprise a leveling brush mounting on the roller frame at front side of the pressure drum in height adjustable fashion and having at least a ooooo 20 comparable width with the pressure drum for leveling the same of the cleaned beach.

Also, the beach cleaner may further comprise a cleaning brush mounted on the roller frame at front and/or rear sides of the pressure drum for cleaning the stamping plate.

-4- The filter forming member may include star-shaped first member having arms each being arc-shaped configuration in convex in rotating direction and a polygonal second member, the first and second members are arranged alternately in adjacent shafts.

The screen may be variable of a tilt angle.

The scraper may be variable of a rake angle.

The sand pit-rub device may be vertically movable.

The dust box may be vertically movable and tiltable.

As set forth, with the beach stamping roller according to the present invention, the message and/or logotype can be continuously stamped on the sand of the beach by towing by the traction vehicle on the cleaned beach or by towing the beach cleaner.

In addition, the beach can be leveled before stamping the S'.o message or the logotype.

15 Furthermore, the beach stamping roller is cleaned before and after stamping.

It should be noted that, if necessary, a cover covering the upper "half of the pressure drum may be provided in the roller frame. The stamping plate may be formed with rubber, plastic, paper or the like.

S 20 On the other hand, by the beach cleaner according to the present invention, since the small size foreign matter, such as stripe form foreign matter may easily pass through the filter forming members, upon biting the foreign matter in the filter forming member, the filter forming member can be easily deflected, the sand admixed with the foreign matter is pit-run rearwardly by the pit-run plate of the rotor in the sand pit-run device with breaking, and by towing the beach stamping roller by the beach cleaner, cleaning of the beach and stamping of the message and/or logotype can be done simultaneously.

In addition, the beach can be leveled before stamping the message or the logotype.

Furthermore, the beach stamping roller is cleaned before and after stamping.

The filter forming member may be star-shape and plate shape to be arranged alternately on adjacent shafts. The filter forming member, however, can be all star-shape or all polygonal shape.

The tilt angle of the screen is preferably variable within a range of to 200 If the tilt angle is less than 10' the screen length becomes •"unnecessarily long. On the other hand, when the tilt angle exceeds 20 15 the transported substance can be rolled frontwardly to cause difficulty in o *o.

feeding rearwardly. More preferred tile angle range is 15 to 170 The rake angle is preferably variable within a range of 20 to 600 If the rake angle is less than 20' rotor diameter becomes excessively large. On the other hand, if the rake angle exceeds 60' rotor load becomes excessively large. More preferred rake angle is in a range of to 450 Rotation of the shafts of the screen or rotor of the sand pit-run device is performed by hydraulic motors. Preferably, the hydraulic motor is variable of revolution speed.

-6- The roller frame is preferably provided with a cover covering upper half of the pressure drum. The stamping plate may be formed with rubber, plastic, paper or the like.

The present invention will be understood more fully from the detailed description given hereinafter and from the accompanying drawings of the preferred embodiment of the present invention, which, however, should not be taken to be limitative to the invention, but are for explanation and understanding only.

In the drawings: Fig. 1 is a side elevation showing one embodiment of a beach stamping roller according to the present invention; Fig. 2 is a partially cut away plan view of the beach stamping roller of Fig. 1; 15 Fig. 3 is a side elevation showing one embodiment of a beach cleaner according to the present invention; .:o.oi Fig. 4 is a partially omitted plan view of the beach cleaner of Fig.

S* 3; Fig. 5 is a side elevation of a screen in the beach cleaner of Fig. 3; 20 Fig. 6 is a partially omitted plan view of the screen of Fig. Fig. 7 is a partial enlarged view of Fig. 6; Fig. 8 is a section taken along line VIII VIII of Fig. 7; Fig. 9 is an enlarged view of the major part of the beach cleaner of Fig. 3; -7- Fig. 10 is a plan view showing a major part of another embodiment of the beach cleaner according to the present invention; Fig. 11 is a section taken along line XI XI of Fig.. Fig. 12 is a plan view showing a major part of a further embodiment of the beach cleaner according to the present invention; and Fig. 13 is a section taken along line XIII-XIII of Fig.12.

The present invention will be discussed hereinafter in detail in terms of the preferred embodiment of the present invention with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be obvious, however, to those skilled in the art that the present invention may be practiced without these specific detailed. In the other instance, well known structure are not shown in detail in order to avoid unnecessary obscurity 15 of the present invention.

*o Figs. 1 and 2 are side elevation and a partially cut away plan view of one embodiment of a beach stamping roller according to the present invention.

°•o.oi °A beach stamping roller 1 has a roller frame 2 of circular shape in plan view. In the front side (left side portion in Figs. 1 and 2) of the roller frame 2, a connecting arm 3 is horizontally projected frontwardly for detachably connecting the roller frame 2 to a rear portion of a traction vehicle, such as a tractor, loader or the like or a beach cleaner traveling as towed by the traction vehicle, which traction vehicle and breach -8cleaner are not shown in Figs. 1 and 2.

On the other hand, on left and right sides in the roller frame 2 (lower and upper sides in Fig. bearing brackets 4a and 4b are arranged in opposition. Between both bearing brackets 4a and 4b, cylindrical pressure drum 5 is rotatably supported via shafts 6a and 6b which extend horizontally from axial center portions of both ends thereof.

On the outer periphery of the pressure drum 5, a stamping plate 7 formed with a rubber, plastic, paper or the like and carrying embossed or relieved message with data Dec. 20, 00 Save the Beach) and/or logotype of an autonomous body or business entity for stamping the message and/or logotype on the sand of the cleaned beach, is loaded in detachable manner.

At the outer central portion of the roller frame 2 located at the *front side of the pressure drum 5, a brush supporting member 8 of *949 15 hollow quadrangular cross section is fixed to extend vertically. To the 9 brush supporting member 8, a leveling brush 9 which has a width at 9oo least comparable with a length of the pressure drum 5 for leveling the sand on the cleaned beach is mounted in such a manner that a height thereof is adjustable via a quadrangular tube form arm 9a extending upwardly from the intermediate portion of the leveling brush.

On the lower surface of the roller frame 2 located at front and rear side of the pressure drum 5, cleaning brushes 10 and 11 are mounted for cleaning plate surface of the stamping plate 7.

In Fig. 1, the reference numeral 12 denotes a protection cover -9covering an upper half of the pressure drum 5. In Fig. 2, the reference numerals 5a and 5b denote bearing brackets rigidly secured on both end portions of the pressure drum 5 in perpendicularly intersecting fashion, denotes a cruciate reinforcement rod provided within the drum for reinforcing the intermediate portion and 5d is a connecting rod for connecting intersecting portions of both bearing brackets 5a and 5b and the reinforcement rod In the beach stamping roller 1 of the construction as set forth above, by towing with the traction vehicle or the beach cleaner on the cleaned beach, the sand on the cleaned beach can be leveled by the leveling brush and subsequently the message and/or logotype are continuously stamped by the stamping plate 7 on the pressure drum Also, the stamping plate 7 can be cleaned before and after stamping by the cleaning brushes 10 and 11.

While the foregoing embodiment has been discussed in terms of the roller frame of circular shape in plan view, the shape of the roller frame 1 is not limited to the circular shape but can be any appropriate shapes, such as elliptic shape, quadrangular shape or so forth.

On the other hand, the arm 9a of the leveling brush 9 is not limited to one but can be two or more.

The leveling brush 9, the cleaning brushes 10, 11 and the protective cover 12 covering the upper half of the pressure drum 5 may be omitted as required.

Figs. 3 and 4 are side elevation and a partially omitted plan view showing one embodiment of the beach cleaner according to the present invention.

The beach cleaner has a machine frame (vehicular frame) 13 traveling as towed by a traction vehicle (not shown) such as a tractor, loader or the like. The machine frame 13 is constructed with a main frame 14 in substantially U-shaped configuration in plan view, a connecting portion 15 provided at the center portion of the front portion (left side in Figs. 3 and 4) of the main frame 14, wheels 16 mounted on both outer sides of rear portion (right side in Figs. 3 and 4) of the main frame and a housing 17 mounted over the rear portion of the main frame 17, housing a not shown hydraulic unit or the like or mounting a dust box.

At the center portion of the main frame 14 in the machine frame 13, a screen 18 for screening the sand, in which foreign matters, such as ooeo 0° 0o V009 15 sea weed, vinyl bags, PET bottles, empty cans, fish nets, cords, ropes and *o so forth are admixed, with feeding the sand rearwardly. For this 0 *°oo° purpose, the screen 18 is arranged in tilting in frontwardly (left sides in 005o04 "Figs. 3 and 4) descending manner. The sand is screened to be removed *See the foreign matters as being fed rearwardly (right sides in Figs. 3 and 4).

Namely, the screen 18 is provided in rectangular shape elongated in back and forth direction (left and right directions in Figs. 3 and 4).

Oo: Mutually parallel screen frames 19a and 19b are latched on horizontally extending pins 21 inwardly projected on rear end portion of the main frame 14, and is supported by a hydraulic cylinder 22 (see Fig. 3) for the -11screen. The hydraulic cylinder 22 is disposed between the both sides of the front portion of the screen 18 and the main frame 14 in the machine frame 13. By actuation of the hydraulic cylinder 22, the screen 18 is pivoted about the pins 21 to vary the tilting angle in a range of 10 to 200 relative to a horizontal plane.

On the screen frames 19a and 19b, a plurality of shafts 23 are supported rotatably by bearings (not shown) in spaced apart from each other with a regular intervals in longitudinal direction of the screen frames 19a and 19b. From the second rearmost shaft 23, pulleys 24a having V-shaped grooves are mounted on respective one ends of every other shafts 23. On one end of an arbitrary one of the shaft 23, a hydraulic motor 25a mounted on the screen frame 19a is connected.

Also, adjacent pulleys 24a, intermediate pulleys 26a rotatably mounted on the screen frame 19a are arranged. On the other hand, from the rear *•o o 15 most shaft 23, pulleys 24b having V-shaped grooves are mounted on oo.ooi S•respective the other ends (upper side in Fig. 6) of every other shafts 23.

On the other end of an arbitrary one of the shaft 23, a hydraulic motor mounted on the screen frame 19b is connected. Also, adjacent pulleys 24b, intermediate pulleys 26b rotatably mounted on the screen frame 19b are arranged. Both hydraulic motors 25a and 25b are driven o• in synchronism with each other.

Furthermore, on the rear end portions of the screen frames 19a and 19b, brackets 27a and 27b are projected outwardly above the pulleys 24a and 24b. On both brackets 27a and 27b, tension -12adjustment bolts 28a and 28b extending in parallel to the longitudinal axes of the screen frames 19a and 19b are threaded. On the front end portions of the tension adjusting bolts 28a and 28b, take-up pulleys 29a and 29b are mounted via yokes 30a and 30b and he pins (not shown).

Also, on the front end portion of the screen frames 19a and 19b, auxiliary take-up rollers 31 a, and 31 b are rotatably provided above the pulleys 24a and 24b.

Over the pulleys 24a and 24b, the intermediate pulleys 26a and 26b, the take-up pulleys 30a and 30b and the auxiliary take-up pulleys 31a and 31b, endless belts 32a and 32b are would for circulation to drive respective shafts 23 in the same direction (clockwise direction in Fig. On each shaft 23, a plurality of star-shaped and polygonal filter forming members 33 and 34 are arranged in alternative manner. Also, on adjacent shafts 23, the star-shaped filter forming members 33 and 9. 15 the polygonal plate members 34 are arranged in alternative manner.

99** •The filter forming members 33 and 34 on the same shaft 23 are arranged with a predetermined gaps to form filters of 2.5 to 10 mm in mesh size.

9**9 Each of the star-shaped filter forming member 33 is formed of a soft material, such as plastic polyurethane), rubber or the like and has a boss 33a fitted on the shaft 23 and a plurality of (twelve in the shown example) arc-shaped arms 33b extending radially from the boss 33a and S convex in the rotating direction of the shaft 23. Also, each of the polygonal filter forming member 34 is formed of a soft material, such as plastic polyurethane), rubber or the like similarly to the filter -13forming member 33 and has a boss 34a fitted on the shaft 23 and a plate member 34b extending radially and having regular polygonal shape (regular hexagonal in the shown example).

In front of the screen 18, a scraper 35 which can penetrate a front end into the sand is arranged in continuation with the front end of the screen 18 in rake angle variable fashion, as shown in Figs. 3, 4 and 7.

Namely, in the screen 18, to bearing brackets 36 mounted both side portions of the front ends of the screen frames 19a and 19b, a horizontally extending pivot shaft 37 is inserted rotatably. On the pivot shaft 37, a rear end of the scraper 35 is secured. On the other hand, at both outer ends of the pivot shaft 37, base portions of semi-circular levers 38 are secured, respectively. On end portions of both levers 38, a plurality of holes 39 are formed in spaced apart relationship in a circumferential direction on two coaxial circles centered at the pivot shaft 37. Then, the scraper 35 is pivoted about the pivot shaft 37 by inserting oooo a bolt 41 into one of holes 39 through a hole (not shown) formed in engaging pieces 40 vertically extending from front end portions of the screen frames 19a and 19b to vary the rake angle within a range of 20 to 60' relative to the horizontal surface.

On the front side of the scraper 36, sand pit-run device 42 for .g pitting run the sand admixed with the foreign matter rearwardly.

Namely, in the front end portion of the screen frames 19a and 19b in the screen 18, bracket 43 is mounted adjacent the upper side of the bearing bracket 36. To both brackets 43, horizontal pins 44 are 14inserted. On both pins 44, a rotor cover 45 covering the scraper 35 and the front end portion of the screen 18 with opening downwardly and rearwardly, is pivotably supported via its lower side of the rear portion of the side walls thereof. The rotor cover 45 is supported by a turn buckles 46 disposed between both side walls and both side positions at the front end of the screen frames 19a and 19b in the screen 18. The rotor cover may be pivoted by expansion and contraction of the turn buckles 46 to move the front portion up and down.

The rotor cover 45 forms a part of the sand pit-run device 42.

Within the rotor cover 45, a rotor 50 is received. The rotor 50 is constructed with horizontal shafts 47 rotatably supported on the both side walls and a plurality of disc-shaped rotor blades 48 mounted on the shaft 47 in spaced apart in regular interval in the longitudinal direction thereof, a pit-run plate 49 formed with a steel plate or hard rubber and 15 radially assembled to the outer periphery of the rotor blade 48. The oooo• S"shaft 47 of the rotor 50 is cooperatively connected to a hydraulic motor 51 mounted on the outside of the rotor cover ••go On the other hand, on the rear end portion of the screen 18, the dust box 52 is arranged in continuation for receiving the filtered out foreign matter of the screen 18 and for vertically movable and tiltable fashion, as shown in Figs. 3 and 4.

Namely, on upper portion on both sides of the housing 17 in the machine frame 13, base end portions of a bent arms 53 extending rearwardly are pivotably mounted for extending and contracting the tip ends thereof by deformation of parallelogram. Both bent arms 53 are supported by hydraulic cylinders 54 for moving the dust box up and down, which hydraulic cylinders 54 are disposed between respective base end portion side and both side portions of the rear ends of the main frame 14. Thus, the tip ends of the bent arms 53 are moved up and down associating with extending or bending by actuation of the hydraulic cylinders 54. On the tip ends of both bent arms 53, the dust box 52 us mounted via pins 55 projected from both side walls. The dust box 52 is pivoted above the pins 55 by the action of hydraulic cylinders 57 for tilting respectively disposed between the end portion of the lever 56 which is secured the base portion on both pins 55 for tilting.

To the main frame 14 in the machine frame 13, a roller traction frame 60 having greater width than the main frame 14 and including a reversed U-shaped mounting portion 58 and a connecting portion short 15 cell grant generating portion provided at the rear end portion of the 0. 0 mounting portion 58, is mounted at both outer sides of the main frame 14. To the connecting portion short cell grant generating portion of the roller traction frames 60, the foregoing beach stamping roller 1 is detachably connected via the connection arm 3.

Since the beach stamping roller is similar to that in Figs. 1 and 3, S•discussion therefor will be omitted for avoiding redundant discussion and whereby to keep the disclosure simple enough to facilitate clear understanding of the present invention.

It should be noted that actuation and stop of the foregoing -16hydraulic unit, the hydraulic motors 25a and 25b and the hydraulic motor 51, and actuation of the hydraulic cylinders 22 for the screen, the hydraulic cylinder 54 for moving the dust box up and down, and the hydraulic cylinders 57 for tilting the dust box are performed by operation of an operation panel (not shown) provided below the housing 17.

For cleaning the san by the traction type beach cleaner constructed as set forth above, and stamping the message and/or logotype on the sane, at first, the machine frame 15 is connected to the traction vehicle via the connecting portion 15. In conjunction therewith, the hydraulic unit is driven by operation of the operation panel.

Then, by activating the hydraulic cylinders 22 for the screen, the screen 18 is set at a necessary tilt angle adapting to dry or wet condition of the sand. In conjunction therewith, by inserting the bolts 41 through i the relevant hole 39 of the lever 38 and the hole of the engaging pieces *15 the tip end of the scraper 35 is set at necessary rake angle adapting to .cleaning depth. Also, by operating the turn buckles 46 appropriately, height of the rotor 50 of the sand pit-run device 42 is set at necessary position. Furthermore, the dust box 52 is placed at the condition shown in Fig. 3. Thereafter, the hydraulic motors 25a, 25b and 51 are driven to travel the beach cleaner towing by the traction vehicle.

By the travel of the beach cleaner, a predetermined thickness of sand admixed with the foreign matter on the beach is pit-run rearwardly and broken by the pit-run plate 49 of the rotor in the sand pit-run device 42 to be supplied to the scraper 35. Then, by scooping of the scraper 17the sand with the foreign matter is supplied to the screen 18. The sand with the foreign matter supplied to the screen 18 is moved rearwardly by rotation of the filter forming members 33 and 34 with filtering to fall only sand having smaller particle size than the mesh size of the filter. On the other hand, the foreign matter having greater size than the mesh side of the filter is transferred rearwardly to be collected within the dust box 52.

In conjunction therewith, the cleaned sand is leveled by the leveling brush 9. Thereafter, the message and/or logotype is continuously stamped or imprinted on the leveled sand. Before and after stamping, the stamping plate 7 is cleaned by the cleaning brushes 10 and 11.

Upon filtering of the sand admixed with the foreign matter (substance to be processed) by means of the screen 18, strip form foreign matter or the like can pass through the filter forming members 33 and 34 .o to prevent jamming to result in plugging. Furthermore, the mesh size of 15 the filter can be made small to separate small size foreign matter with •improvement of work efficiency.

Upon biting of the foreign matter, since the filter forming members 33 and 34 can be easily deflected to prevent damaging of the filter forming members 19a and 19b to provide superior durability.

Subsequently, when the foreign matter collected in the dust box becomes full, the hydraulic cylinder 22 for the screen is contracted to pull up the scraper 23 and the sand pit-run device to travel to foreign matter stacking site to stop towing by the traction vehicle. At the same time, driving of the hydraulic motors 25a, 25b and 51 is also stopped as 18required. Then, the hydraulic cylinders 57 for moving the dust box up and down are extended to tilt the dust box 52 to discharge the foreign matter to the foreign matter stacking site. Then, the hydraulic cylinders 57 are contracted to return the dust box 52 at the initial position for receiving the foreign matter.

Figs. 10 and 11 are plan view and section taken long line XI XI in Fig. 10 and showing another embodiment of the beach cleaner according to the present invention.

In the shown embodiment, the beach cleaner has substantially the same construction as that in the former embodiment except for the shape of the filter forming members. Namely, in the former embodiment, the filter forming members 33 and 34 of the screen 18 are star-shaped one and polygonal one arranged alternately in the adjacent shafts. In contrast to this, the shown embodiment employs only star-shaped filter 15 forming members 33. Operation and function are the same as the S• former embodiment.

S•Figs. 12 and 13 are plan view and section taken long line XIII XIII in Fig. 12 and showing another embodiment of the beach cleaner according to the present invention.

In the shown embodiment, the beach cleaner has substantially the same construction as that in the former embodiment except for the shape of the filter forming members. Namely, in the former embodiment, the filter forming members 33 and 34 of the screen 18 are star-shaped one and polygonal one arranged alternately in the adjacent shafts. In 19contrast to this, the shown embodiment employs only polygonal filter forming members 33. Operation and function are the same as the former embodiment.

It should be noted that while the foregoing embodiments have been discussed in terms of traction type beach cleaner, the present invention is not limited to the shown type of the beach cleaner. For instance, the present invention is equally applicable for selfpropelling type beach cleaner which has a self-propelling machine frame with tire or crawler.

As set forth, with the beach stamping roller according to the present invention, the message and/or logotype can be continuously stamped on the sand of the beach by towing by the traction vehicle on the cleaned beach or by towing the beach cleaner. It becomes possible to announce to the user that the beach has been cleaned. Also, by the 15 beach stamping roller, mark of the autonomouns body or advertisement °o.ooi of the business entity can be easily stamped on the sand.

!In addition, since the beach can be leveled before stamping the message or the logotype, the stamped message and/or logotype can be °clear.

Furthermore, since the beach stamping roller is cleaned before and after stamping, clear stamping of the message and/or logotype can be maintained.

On the other hand, by the beach cleaner according to the present invention, since the small size foreign matter, such as stripe form foreign matter may easily pass through the filter forming members, jamming resulting in plugging may be successfully prevented. Furthermore, since the filter forming members may form small mesh size filter, fine foreign matter may be efficiently removed to improve work efficiency.

Also, upon biting the foreign matter in the filter forming member, the filter forming members may be easily deflected to avoiding damaging.

Therefore, high durability can be obtained.

Furthermore, since the sand admixed with the foreign matter is pit-run rearwardly by the pit-run plate of the rotor in the sand pit-run device with breaking, scooping of the sand by the scraper can be done efficiently in the predetermined thickness without being affected by dry and wet condition of the sand or other substance to be processed.

In addition, by towing the beach stamping roller by the beach o°cleaner, cleaning of the beach and stamping of the message and/or 15 logotype can be done simultaneously.

"Although the present invention has been illustrated and described with respect to exemplary embodiment thereof, it should be 0000 understood by those skilled in the art that the foregoing and various other changes, omission and additions may be made therein and thereto, without departing from the spirit and scope of the present invention.

Therefore, the present invention should not be understood as limited to the specific embodiment set out above but to include all possible embodiments which can be embodied within a scope encompassed and equivalent thereof with respect to the feature set out in the appended 21claims.

.J.

*S.

S. S S S. S

S

S.

Claims (10)

1. 2. A beach stamping roller as set forth in claim im, which further comprises a leveling brush mounting on the roller frame at front side of a.. "'a.*said pressure drum in height adjustable fashion and having at least a .oao 15 comparable width with said pressure drum for leveling the same of the ooooo S"cleaned beach.
2. 3. A beach stamping roller as set forth in claim 1 or 2, which further io ~comprises a cleaning brush mounted on said roller frame at front and/or rear sides of said pressure drum for cleaning said stamping plate. .i
3. 4. A beach cleaner comprising: a machine frame adapted for self-propelling or for towing by a traction vehicle; -23- a screen arranged at the center portion of said machine frame in frontwardly descending position, and being consisted of a plurality of filter forming members formed with soft type material for filtering foreign matter from the sand with moving the sand rearwardly by rotating a plurality of shafts carrying said filter forming members; a scraper arranged in continuation with a front end of said screen and adapted for penetration a front end thereof into the sand;. a sand pit-run device arranged at front side of said scraper and pitting run the sand admixed with the foreign matter rearwardly by rotating a rotor with a plurality of pit-run plates extended radially from the outer periphery of said rotor; a dust box receiving filtered out substance of the screen; o• r a roller frame in circular, elliptic or quadrangular shape in plan view and detachably connected to a rear portion of said machine frame *b *R 15 and positioned behind said dust box; a pressure drum rotatably mounted on said roller frame through •a horizontal shaft; and a stamping plate detachably mounted on the outer periphery of said pressure drum and formed with a message and/or a logotype for stamping the message and/or logotype on the sand in cleaned beach. 0 A beach cleaner as set forth in claim 4, which further comprises a leveling brush mounting on the roller frame at front side of said pressure drum in height adjustable fashion and having at least a comparable -24- width with said pressure drum for leveling the same of the cleaned beach.
4. 6. A beach cleaner as set forth in claim 4 or 5, which further comprises a cleaning brush mounted on said roller frame at front and/or rear sides of said pressure drum for cleaning said stamping plate.
5. 7. A beach cleaner as set forth in any one of claims 4 to 6, wherein said filter forming member includes star-shaped first member having arms each being arc-shaped configuration in convex in rotating direction and a polygonal second member, said first and second members are arranged alternately in adjacent shafts.
6. 8. A beach cleaner as set forth in any one of claims 4 to 7, wherein S. CS OS 15 said screen is variable of a tilt angle. *OSS CS•CS 9. A breach cleaner as set forth in any one of claims 4 to 8, wherein goo* said scraper is variable of a rake angle. Ootq.: %0.0 *66S
7. 10. A beach cleaner as set forth in any one of claims 4 to 9, wherein said sand pit-rub device is vertically movable. .C
8. 11. A beach cleaner as set forth in any one of claims 4 to 10, wherein said dust box is vertically movable and tiltable.
9. 12. A beach stamping roller substantially as hereinbefore described with reference to any one of the embodiments of the invention as shown in the accompanying drawings.
10. 13. A beach cleaner substantially as hereinbefore described with reference to any one of the embodiments of the invention as shown in the accompanying drawings. Dated 22 January, 2001 Kawajyu Yachiyo Engineering Ltd. Patent Attorneys for the Applicant/Nominated Person SPRUSON FERGUSON O 0 0@ 0* 0@ 0 S 0* 0 500 0 S 0 [R:\LIBLL]1052 .doc:caa