JPH0197708A - Beach cleaner - Google Patents

Abstract

PURPOSE: To permit even a small vehicle to efficiently process a large amount of sand by providing separately a shovel for digging up surface soil and a screen member for separating the surface soil into sand and trash. CONSTITUTION: A shovel 6 which makes digging movements is vertically movably suspended via camshafts 8a, 9a on the underside of a vehicle body frame 1 supported by a large diameter drive wheel 2 and a small diameter auxiliary wheel 3. A screen member 7 located therebehind for separating sand is freely rotationally suspended by a pivot and the shovel 6 and the screen member 7 are connected to vibration means for vibrating them horizontally and are bridged together by an elastic plate 6c. Therefore, surface soil is surely dug up, together with foreign matter, and separating operations using the screen member 7 can be performed efficiently.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The invention relates to a beach cleaner used for cleaning sand dunes on coasts and rivers, and in particular, the invention relates to a beach cleaner that can be operated by an operator while walking and holding the operating handle at the rear. It is OK to remove foreign objects such as empty cans and glass bottles from the sandy soil of coastal dunes.

[Conventional technology]

Conventionally, beach cleaners use four-wheel drive F-racks, tractors, and other vehicles for traveling on rough terrain to pull an endless belt with numerous nail-shaped spikes planted in it, and use the spikes to stir the sand to pierce or pinch foreign objects. The conventional method was to pull the material onto the belt and remove it.

On the other hand, agricultural machines that use large shovels to dig root vegetables out of the ground are also known.

[Problem that the invention seeks to solve]

However, the former requires a large amount of power and has the problem of not being able to completely remove foreign matter, while the latter has the function of thrusting the shovel into the soil, and lifting the sand and transferring it along with the foreign matter onto the wire mesh at the rear. The function and the function of shaking the wire mesh back and forth to remove soil were not differentiated, making it inefficient (and requiring a large amount of power).

[Means for solving problems]

The purpose of this invention is to eliminate the above-mentioned problems and provide a small and efficient beach cleaner, in which a shovel that performs digging motion is attached to the underside of a body frame supported by wheels via a camshaft. A sieve member that is movable up and down and located behind the sieve member to separate sand is rotatably suspended by a pivot, and these shovels and the sieve member are connected to a vibration means that vibrates in the horizontal direction,
It is unique in that an elastic plate is used as a bridge between the two.

[Effect]

The shovel is swung up and down by a camshaft and vibrated horizontally by a vibrating means, and the shovel follows its cutting edge into the soil, lifts the tip, lifts up sand along with foreign objects, and sends it backwards. An elastic plate is placed at the rear, and the sand passes over it and is sent onto the sieve member at the rear where it is vibrated. There, the sand falls to the ground through the sieving member, and bottles, empty cans, cigarette butts, etc. that are larger than the sand grains are sent to a garbage bag provided further back.

〔Example〕

Hereinafter, the present invention will be explained with reference to the illustrated embodiment. The figure shows a beach cleaner, and in the figure, 1 is a car body frame, a large-diameter driving TJJJ wheel 2.2 is placed at the rear, and a large-diameter drive wheel 2.2 is placed at the front. It is supported by small-diameter auxiliary wheels 3. That is, the vehicle body frame 1 has a main body made of a steel plate bent into a box shape that opens at the bottom, and a pair of left and right handlebars 4 are provided at the rear end.

4m is a steering lever, and 4b is a gear shift lever. drive 83
An engine 5 and a storage battery 5a are mounted on the upper surface of the vehicle body on the front side, and a shovel 6 and a sieve member 1 are arranged in the front and rear below the engine 5 and the storage battery 5a. A garbage bag 7a is attached to the rear end of the reinforcing member 7, and is used to store garbage and empty cans passing through the sieve member 1.

As shown in FIG. 6, the shovel 6 has a sand trench portion consisting of a cutting edge plate 6a, a perforated plate 6b made of a wire mesh, and a flexible plate 6C made of an elastic material such as rubber, and the sand trench portion is attached to the vehicle body. It consists of a support mechanism that is suspended from the frame 1 and vibrates back and forth and up and down. The support mechanism includes a hanging arm 6d;
A push/pull arm 6 that swings this back and forth via a pin 6C
The other ends of both arms 6d and 6f are supported by the vehicle body frame 1 via a first cam mechanism 8 and a second cam mechanism 9, respectively, which are made in exactly the same shape.

The cam mechanisms 8 and 9 consist of a cam shaft 8a#sa supported by the vehicle body frame 1 and eccentric cams 8b and 9b provided on the cam shaft 8a#sa, and the eccentric cams 6b and gb are connected to the hanging arm 6d and push/pull arm. The other end of 6f is rotatably fitted. Therefore, when the cam mechanism 8.9 is activated, the shovel B removes its elliptical motion and repeats the first action of penetrating into the sand and the second action of lifting the sand and flowing it backwards, as shown by the arrow in Figure 3. I'll give it back. That is, when the shovel 6 is lifted upward by the '1st cam mechanism 8 and the second cam mechanism 9 that operate synchronously, it is pulled backward, and the sand scooped onto the shovel 6 is thrown backward, as will be described later. Send to sieve member 7.

As shown in FIGS. 3 and 5, the sieve member 7 has two supporting arms 11 on the rear side that are installed relatively lying down and two supporting arms 12 on the front side that are installed upright, so that the front end can be It is disposed at a low position where it goes under the flexible plate 6C and at a relatively high position where the rear end is connected to the garbage bag 7a, and is suspended so that the front side forms a low slope.

A rod 14 is connected to one of the front and rear support arms via a pin 13, and a third cam mechanism 15 having the same shape as the cam mechanism 8.9 is connected to the other end of the rod 14. When the front side lifts rapidly, it moves rapidly backwards, throwing sand and debris from the top side backwards and making it run up the slope. 15a is a cam shaft similar to other cam mechanisms, and 15b is an eccentric cam.

First cam mechanism 8, second cam mechanism 9 and third cam mechanism 1
5 is connected to the output shaft of the engine 5 via chains C1, Cm, Cm, a bevel gear mechanism 16 and a V-belt 17.

19 is a continuously variable transmission interposed between the output shaft of the engine 5 and the axle 2a of the driving wheels, and 21 is a gear type reduction gear. Note that the drive wheels 2 require a differential gear mechanism for running on rough terrain, and a dog clutch 2 provided on the axle 2a for direction change.
It is removably connected to the axle 2a via the handle 4, and steering operation is performed by operating a steering lever 4a provided on the handlebar 4 to disengage the dog clutch 2b in the direction of turning.

Next, the operation of this embodiment will be explained. After transporting the vehicle to the coast or other sandy area and adjusting the digging depth of the shovel 6,
When the carrot 6 is started and the tension clutch (not shown) provided on the belt 17 is connected, the engine output operates the cam mechanisms 8, 9 and 15 via the bevel gear mechanism 16, so the shovel 6 The cutting edge plate 6a plunges into the sand and excavates the topsoil containing dirt, and then the cutting edge plate 6a lifts up and sends it backward, and the vertical vibration breaks up the soil clod on the perforated plate 6b, preventing the sand from falling. From there, it is sent to the rear sieve member 7 through the flexible plate 6c.

The sieving member 7 is swung back and forth by the third cam mechanism 15 to remove sand, and the remaining garbage such as bottles and cans is placed in the garbage bag 1.
Send it to a.

〔Effect of the invention〕

As described above, the beach cleaner of the present invention is provided with a shovel that excavates the topsoil of the sandy area to be cleaned, and a sieve member that separates the topsoil into sand and garbage. Since the separation function is differentiated, the topsoil is reliably excavated together with foreign substances, and the separation work is performed efficiently by the sieving member, so even small vehicles can efficiently process large trays of sand. There is an effect that can be done◎

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the beach cleaner, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along line I-1, and FIG. 4 is a sectional view taken along line IV-IV. Figures 5 and 6 are enlarged external views of the main parts. @ease shovel, 1 work... sieve member, 72・#l
l11 garbage bag. Patent applicant Showa Seisakusho Co., Ltd. Agent Masaki Yamakawa (6 applicants, 12 applicants)

Claims (3)

[Claims] (1) A shovel that excavates on the underside of the car body frame supported by wheels is movable up and down via a camshaft, and a sieve member located behind it that separates sand is mounted on a pivot shaft. The beach cleaner is constructed by connecting the shovel and the sieving member to a vibrating means for horizontally vibrating the shovel and the sieving member, which are each suspended rotatably, and which are bridged by an elastic plate. (2) The shovel and the sieve member are supported by the vehicle body frame with their front sides tilted low, and when their front sides are lifted by a camshaft, they are set to move rearward in synchronization with another camshaft. A beach cleaner according to claim 1. (3) The beach cleaner according to claim 1, wherein the vibration means is a camshaft driven by an engine and a push/pull arm driven by the cam.