JP2008025209A - Sandbox cleaning sieve machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sandbox cleaning sieve machine for safely and cleanly cleaning a sandbox, by efficiently and quickly selecting and removing foreign substances such as dung of dogs and cats, plastic, a glass piece, a stone, and the other refuses of the sandbox arranged in a park, a kindergarten and a school, through sieving while traveling or in a stopping state. <P>SOLUTION: The sandbox cleaning sieve machine has: a car body having a pair of right-left traveling wheels, a prime mover and a handle; a rotor of arranging a plurality of sand raking-up pieces for raking up sand in the circumferential direction; a net-like sieve basket for separating the foreign substance; a foot plate part changeably installed with an auxiliary wheel on the tip of a support leg part arranged on both right-left sides of the sieve basket so that the height can be adjusted; a horizontally adjusting means for maintaining the sieve basket horizontally or at a proper angle near to the horizontal when operating the sieve basket; and a transmission mechanism for transmitting rotary motion of the prime mover to the sieve basket by changing to reciprocating motion by a crank mechanism by reducing a speed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention can be efficiently passed through a sieve while running or stopped in a park, kindergarten, school, etc. while running a dog or cat dung, plastic or glass pieces, stones or other garbage such as garbage. The present invention relates to a sandbox cleaning sieving machine for quickly sorting and removing a sandbox safely and cleanly.

  Conventionally, this type of sandbox cleaning machine has only a function as a so-called cleaning machine that performs a sorting operation while running the cleaning machine (see Patent Document 1). By the way, in the conventional sandbox cleaning machine, when the supporting leg was raised, the sieve cake was tilted forward at a steep angle and the sieve was not used. Also, when cleaning using a normal sandbox cleaner, in order to avoid the traveling wheels coming into contact with the peripheral wall, the cleaner is generally left behind on the peripheral wall of the sandbox due to the fact that it runs inside the peripheral wall of the sandbox. Is produced. Furthermore, depending on the conditions of the sandbox, the sandbox cleaner may not be used. In such a case, it is unavoidable to manually separate impurities using a sieving machine, which not only causes a reduction in the efficiency of the cleaning work, but is also a problem in occupational health.

In addition, the conventional sandbox cleaner employs a vibration system that shortens the screen movement distance of the sieve cake and vibrates many times in a short time due to its structure. Overflowing, the vibration is weakened by the weight of the sand, and the screen efficiency is poor, causing a reduction in work efficiency (see Patent Document 1 and Patent Document 2). Further, the triangular pyramid-shaped float and the left and right sand scraping blades attached as the front sinking prevention device shown in Patent Document 3 have a large resistance and are difficult to use for deep digging cleaning. In addition, the plate-shaped sinking prevention tool combined with the auxiliary wheel is not useful when traveling on rough ground or stairs for movement because the sinking prevention plate gets in the way and the auxiliary wheel rises. There was a problem (see Patent Document 3).
Japanese Patent Laid-Open No. 11-172647 Utility Model Registration No. 3096679 JP 2001-164534 A

  As a result of earnest research based on the experience gained from the practice of sandbox cleaning work by engaging in sandbox cleaning work for many years, the present inventor has improved the conventional sandbox cleaner, which is a dedicated cleaning machine, It can also be used as a sieving machine, and moreover, by reciprocating the screen horizontally at an appropriate distance rather than vibrating the conventional sieve in small increments, and further combining the reciprocating motion and the vertical impact, The present invention has been conceived by knowing that the ability to separate foreign substances by sieving is greatly improved, and the object of the present invention is to solve the above-mentioned problems and to serve as a sandbox cleaner. In addition to the function, it also has a function as a sieve that performs work in a state where the vehicle body is stopped, and it also efficiently and quickly sorts and removes foreign substances to clean the sandbox safely and cleanly. Provide an eye To.

  In order to solve the above problems, the present invention provides a vehicle body having a pair of left and right traveling wheels, a prime mover for rotating the traveling wheels, and a handle, and sand mixed with impurities on the rear side of the traveling wheels. A rotor in which a plurality of sand scraps that scrape up the sand and the like are disposed in the circumferential direction, and a sand mixed with impurities on the back side of the rotor is placed on a net that reciprocates in a substantially horizontal direction. And a foot plate portion that is attached to the tip of a support leg that can be adjusted in height on both the left and right sides of the sieve screen so as to be exchangeable with auxiliary wheels, and the sieve screen is in operation. A leveling means for maintaining the sieve cake at an appropriate angle that is horizontal or close to horizontal, and a transmission mechanism that decelerates the rotational movement of the prime mover and converts it into a reciprocating motion by a crank mechanism and transmits it to the sieve cake. A sandbox cleaning sieving machine, which travels the vehicle body Working together function as a sandbox cleaner to perform while, and Sand cleaning sieve machine and having a function as a sieve machine for performing work in a state of stopping the vehicle traveling (claim 1).

  In order to solve the above-described problems, the present invention provides a method in which the sieve cake is movable in a horizontal direction and detachable on a sieve support wheel provided at a bottom portion of a chassis connected to a vehicle body. The body part is mounted on the left and right sides, and the length of the body part is freely adjustable. At the tip, the foot plate part is supported by a support leg part that can be exchanged with an auxiliary wheel. It is connected to the vehicle body through a leveling means, and the screen is maintained at an appropriate angle close to the horizontal or an appropriate angle during the operation of the sandbox cleaner and the sieve by switching the leveling means. It is preferable to use a sandbox cleaning sieve (claim 2).

  In order to solve the above-mentioned problems, the present invention provides the sieve cake according to the present invention, in which the mesh formed in at least the bottom portion of the bottom portion and the side portion is either a lattice shape or a comb shape. It is preferable to use the sandbox cleaning sieving machine, wherein any one of the ridges is selected and attached so as to be replaceable (Claim 3).

  In order to solve the above-mentioned problems, the present invention provides a method for repeating the screen screen reciprocating in the horizontal direction and repeatedly lifting and dropping, or by hitting the screen screen by an external means. Preferably, the sandbox cleaning sieve is characterized in that an impact in the vertical direction is applied to the sandbox cleaning sieve (claim 4).

  In order to solve the above-mentioned problems, the present invention provides an elastic body at a position where a sieve sieve or a sieve sieve that reciprocates with the sieve sieve collides in the front-rear direction of the reciprocating movement. The sandbox cleaning sieving machine is preferably the sandbox cleaning sieving machine characterized in that the sieving action of the sieve cake is improved by a repulsive force when colliding with the elastic body. 5).

  In order to solve the above-mentioned problems, the present invention relates to a transmission mechanism that decelerates the rotational motion of the prime mover and converts it to a reciprocating motion by a crank mechanism and transmits it to a sieve cake. The two slides are telescopically connected to each other, and a plurality of long holes are formed at appropriate intervals in the slide part of one shaft, and a round hole is formed in the slide part of the other shaft. The long hole is appropriately selected so that the transmission shaft has the desired length, overlapped with the round hole, pins are inserted into both holes, and the shafts are slidably coupled within the distance of the long hole. The two types of shafts slide within the distance of the long hole due to the repulsive force when the sieve cake collides with the elastic body, so that the direction change accompanying the reciprocating movement of the sieve sieve is smoothed. Defeat It is preferable that the above Sand cleaning sifter, characterized in that to increase the impact force by (claim 6).

  When the sandbox cleaning sieve according to the present invention is configured as described above, the sandbox cleaning sieve can be used as a sandbox cleaner that performs work while the vehicle is traveling, and as a sieve with the vehicle running and the rotor stopped. When used, the leveling means can maintain the sieve cake at an appropriate angle from horizontal to horizontal, so that one sandbox cleaning sieve machine can serve as a conventional sandbox cleaner and sieve machine. Play.

  Further, the ability to sort out foreign substances by sieving is increased by reciprocating the sieve horizontally over an appropriate distance and combining the impact in the vertical direction. Particularly in wet sand, a conventional sandbox cleaning machine that vibrates the sieve in small increments causes the mud contained in the sand to adhere to the wire mesh and cause clogging. The machine doubles work efficiency even in wet sand. Further, in the case where an elastic body is provided at a position where the front and rear screens of the casing collide, the sieve screen collides with the elastic body, and the repulsive force improves the screening function of the screen. The effect is increased.

  The best mode for carrying out the present invention (hereinafter abbreviated as “embodiment”) will be described with reference to the drawings. Therefore, the sandbox cleaning sieve of the present invention is not limited at all by this embodiment. FIG. 1 is a schematic side view showing a sandbox cleaning sieve according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a state where the sandbox cleaning sieve according to the embodiment of the present invention is used as a sieve. FIG. 3 is a side view, FIG. 3 is an explanatory view showing the leveling means of the sandbox cleaning sieve according to the embodiment of the present invention, and FIG. 4 is a screen of the sandbox cleaning sieve according to the embodiment of the present invention. It is a side view which shows the state which attached the sieve lage attachment frame to the eaves, FIG. 5 is also a top view and a side view, and FIG. 7 is a partial perspective view. FIG. 6 is an explanatory diagram of a transmission shaft of the sandbox cleaning sieve according to the embodiment of the present invention.

  As shown in FIG. 1, a sandbox cleaning sieving machine 1 according to an embodiment of the present invention includes a pair of left and right traveling wheels 2, a vehicle body 5 that includes a prime mover 3 that rotates the traveling wheels, and a handle 4, A rotor 7 in which a plurality of sand scraps 6 for scooping up sand or the like on the rear side of the traveling wheel are disposed in the circumferential direction, and a mesh-like sieve screen that reciprocates in a substantially horizontal direction on the rear side of the rotor. 8, a foot plate portion 11 that is attached to the tip of a support leg 9 that can be adjusted in height on both the left and right sides of the sieve rod, and can be exchanged with an auxiliary wheel 10, and the sieve sieve while the sieve is in operation. Level adjustment means 12 for maintaining the kite horizontally or at an appropriate angle close to horizontal, and a transmission mechanism 14 that decelerates the rotational motion of the prime mover and converts it into a reciprocating motion by the crank mechanism 13 and transmits it to the sieve cake. Become.

  In the sandbox cleaning sieving machine 1, the sieving sieve 8 is inside a casing part 15 connected to the vehicle body 5, and in a front-rear direction on a pair of wheels 16, 16 provided at two places on the front and rear of the bottom part. Mounted movably and detachably, the housing part is provided on both the left and right sides, the length of which can be adjusted, and the foot plate part 11 is attached to the front end of the support part 11 in an exchangeable manner. The front part is supported by the leg 9 and the front part is connected to the vehicle body 5 through the leveling means 12, and the leveling means allows the sieve cake to be horizontal or at an appropriate angle close to horizontal during the operation of the sandbox cleaner and sieve. Maintained.

  As shown in FIG. 4, the housing portion 15 is formed of a rectangular frame body, and the inside of the housing portion 15 is accommodated with a clearance for reciprocating back and forth. A rotating shaft having a pair of wheels 16 and 16 attached to both ends is rotatably attached to the front and rear two places on the inner bottom portion of the housing portion 15. As shown in FIG. 2B, the wheels 16 and 16 are formed with flanges 16a on the side surfaces of the casing portion 15, and the screen 8 is placed inside the flanges 16a of a pair of front and rear wheels. Placed so as not to contact the side surface of the housing. As shown in FIG. 1, slide grooves 14j are formed in the left and right side plates of the casing portion 15 in the front-rear direction, and both end portions of the sieve rod mounting frame 18 are slidably attached to the slide grooves 14j. Yes.

  On the other hand, as shown in FIG. 1, the rotational motion of the prime mover 3 is transmitted from the driving pulley 14f to the interlocking pulley 14d by the belt 14g, decelerated by the reduction gear (gear train), and reciprocated by the crank mechanism 13 (13a, 13b, 13c). It is converted into motion and transmitted to the sieve cake 8 by a transmission mechanism such as the transmission shaft 14. As another example of the crank mechanism, two crank pulleys 13a 'and 13a' are provided by connecting their central axes, and one of the crank pulleys 13a 'is connected to the interlocking pulley 14d and the speed reducer ( A gear train 13d is connected to a pulley 14d 'linked with a v-belt 13e, and the crank pulleys 13a' and 13a 'are sieved through an outer transmission shaft 14b and 14b and an inner transmission shaft 14a and 14a, respectively. You may comprise so that it may connect with the eaves 8 (refer FIG. 8). Then, as shown in FIGS. 5 and 7, the rotating lock 14q is placed in the vertically long position and tightened with the thumbscrew 14p, and the sieve cake 8 is detachably attached to the sieve mesh mounting frame 18, as shown in FIG. Further, the transmission shaft 14 is rotatably connected to the sieve screen mounting frame 18 by a universal pin 14c, and as the transmission shaft 14 reciprocates by the crank mechanism 13, both ends of the screen screen mounting frame 18 are slide grooves. It slides along 14j, and is configured such that the sieve 8 reciprocates back and forth on the wheels 16,16.

  Further, a tension pulley 14e is provided between the interlocking pulley 14d and the driving pulley 14f, the tension pulley 14e is connected to the intermittent lever 14h and the spring 14i, and the intermittent lever 14h is pulled or returned, whereby the rotational motion of the prime mover is transferred to the crank mechanism. The reciprocating motion of the screen can be activated or stopped by interrupting the transmission path. Then, the rotational motion of the prime mover is transmitted from the drive pulley 14f to the speed reduction device by another belt and decelerated, and then the rotor 7 is rotated by the sprocket and the chain. Further, by selecting neutral with the shift lever 19, the sieve rod 8 can be operated with the traveling wheel 2 stopped. At this time, the rotor 7 is also set to stop simultaneously.

  Next, the leveling means of the present invention is a connection for connecting the sieve screen or the fuselage portion with the vehicle body at an appropriate angle so that the screen mesh or the drive portion keeps a horizontal or near horizontal angle during operation. It is a tool. Although the horizontal adjustment means of the sandbox cleaning sieve according to the present embodiment will be described, it is not limited to such an embodiment. As shown in FIG. 3, the level adjusting means 12 is fixed to the L-shaped piece 12a fixed to the horizontal rod 12c provided in the horizontal direction in the vicinity of the front lower portion of the frame portion 15, and to the vehicle body convex portion 5a. It consists of the clamping part 12b. A plurality of through holes are perforated at appropriate intervals in the L-shaped piece 12a and the sandwiching portion 12b. Then, if the L-shaped piece 12a is sandwiched between the gaps of the sandwiching portion 12b, and the positions of the through holes are appropriately changed and fixed with bolts and nuts, the attachment angle between the fuselage portion 15 and the vehicle body is determined automatically, and the sieve in operation The hook 8 can be maintained at an angle close to horizontal.

  For example, when the through holes a and A, c and B, and e and C are overlapped and fixed, as shown in FIG. 1, the casing portion 15 and the sieve rod 8 are fixed in a slightly inclined state. However, when the sandbox cleaning sieving machine 1 runs in the sandbox, the rotor 7 sinks deeper than the central axis of the rotor while scooping up the sand, so that the sieve cake 8 is maintained substantially horizontal in this state. Next, when stopping traveling and working as a sieving machine, the through holes c and A, f and B are overlapped and fixed in a state where the support legs 9 are extended so high that the rotor 7 is lifted from the ground. . At the same time, adjust the length of the transmission shaft. As a result, the front portion of the casing portion 15 and the sieve bowl 8 are fixed in a state where they are lifted with respect to the vehicle body, so that the casing section 15 and the sieve bowl 8 are maintained substantially horizontal and work as a sieving machine is possible ( (See FIG. 2). In the horizontal adjustment means, the holding portion 12b may be omitted and the vehicle body convex portion 5a may be directly connected to the L-shaped piece 12a. A through groove is provided instead of the through hole of the L-shaped piece 12a, and the vehicle body is provided in the through groove. You may comprise so that a through-hole of the convex part 5a can be piled up and it can fix continuously with a volt | bolt and a nut, and an inclination can be adjusted continuously (not shown).

  As shown in FIG. 1, the rotor 7 is located on the rear side of the traveling wheel 2, and is provided with screw-like squeezing blades (not shown) for bringing sand or the like to the intermediate portion at both ends of the shaft. Four sand scraping pieces 6 for scooping up sand and the like are disposed at equal intervals in the circumferential direction at two positions in the middle of the both spreading blades. The sand scrap 6 is a plate having a slightly wider tip than the base and is curved in the rotational direction. Sand or the like scraped up by the rotation of the sand scrap 6 is received by a sieve cake 8 provided on the rear side. A cover sheet 20 that covers the upper part of the rotor and the fuselage part, and a guide plate 23 is provided obliquely from the rear end part toward the screen 8 and a part of sand or the like scraped up by the sand scraps 6 Is brought into contact with the cover sheet 20 and guided to the screen 8 by the guide plate 23. Further, the cover sheet 20 is provided so as to be openable from the rear end portion to the upper part of the sieve cake 8. When used as a sieve machine, the cover sheet 20 is opened by lifting the sheet upward and using a scoop etc. Etc. can be put into the sieve bowl 8.

  Furthermore, it is one of the characteristics of the sandbox cleaning sieve according to the present invention that the sieve 8 reciprocates back and forth and an impact in the vertical direction is applied to the sieve 8. There is no particular limitation on the method of applying a vertical impact to the sieve 8. For example, as shown in FIG. 4, the projection 22 is provided at a position where the outer bottom portion of the sieve mesh 8 is in contact with the wheel 16, or the projection 22 is provided at a position where the outer periphery of the wheel 16 is in contact with the outer bottom portion of the sieve mesh. (Not shown), the screen 8 is lifted by being brought into contact with the protrusions, and then the operation of hitting the upper wheel 16 ′ and rebounding and dropping is repeated, and a vertical impact is applied to the screen 8. What omitted the wheel 16 'is also included in the present invention. Further, as shown in FIG. 5, a lattice-like net is usually used for the sieve cake. However, in the case of grass, plant roots, and sandy pits with a lot of cilia, they must be removed many times because they become entangled with the net and block the mesh, which causes troubles in the work. Therefore, as shown in FIG. 5 (a), it is preferable that at least the net provided at the bottom is replaced with a lattice shape to have a comb shape. Normally, by attaching the filaments constituting the comb-shaped net so as to be oriented in a direction perpendicular to the direction of reciprocating movement of the sieve cake, it is possible to efficiently select filamentous bodies such as grass roots and cilia, In addition, it is convenient because the roots and cilia remaining on the net can be easily removed with a brush.

  An elastic body 17 is provided at a position at which either or both of the front part and the rear part of the casing part collide with each other in addition to the impact in the vertical direction on the sieve 8 or separately from the impact in the vertical direction. In the present invention, the elastic body 17 collides with the elastic body 17 and improves the sieving action of the sieve 8 by the repulsive force (see FIG. 4). In addition, as shown in FIG. 4, the slide groove 14j in which the sieve screen mounting frame 18 collides with the slide groove 14j in which the screen screen mounting frame 18 reciprocates as shown in FIG. You may provide the elastic body 17 in the rear-end part. Here, the elastic body 17 includes not only an elastic body such as natural rubber and synthetic rubber, but also ridges and the like. It is preferable to employ the transmission shaft according to claim 6 in combination with the elastic body 17 colliding with the sieve. As shown in FIG. 6, two transmission shafts (an inner transmission shaft 14a and an outer transmission shaft 14b) are provided so as to be slidable in a nested manner, and the inner transmission shaft 14a has a first slot and a second slot. A plurality of long holes 14k are formed, and one or a plurality of round holes 14l are formed in the outer transmission shaft 14b. The length of the transmission shaft 14 can be adjusted by changing the position of the long hole 14k overlapped with the round hole 14l and penetrating the connecting pin 14n to connect both shafts 14a and 14b (see FIGS. 6c to 6e). In this way, the length of the transmission shaft 14 can be adjusted when adjusting the level of the sieve cake according to the specifications of the sieve machine or the sandbox cleaner.

  Further, the position at which the screen 8 collides with the elastic body 17 is set slightly in front of the original folding position (position where the crankshaft is horizontal). When the sieve screen 8 is pulled in the direction of the arrow in the state shown in FIG. 6c before colliding with the elastic body 17, the screen screen 8 momentarily turns back due to the reaction of the sieve screen 8 and the elastic body 17 at the same time. The inner transmission shaft 14a advances in the opposite direction (extension direction) to the outer transmission shaft 14b, that is, in the state shown in FIG. 6d. Thus, the screen 8 is instantaneously moved without waiting until the crank turning point is reached. Can turn around. Further, the inner transmission shaft 14a and the outer transmission shaft 14b slide within the distance of the long hole, so that the load applied to the connecting pin and the crank pin is alleviated, and the direction change accompanying the reciprocating motion of the sieve cake is smooth. To be made. By this instantaneous change of direction, the impact force with which the sieve cake collides with the elastic body 17 is increased, and the sieve effect is further increased. In addition, the soundproofing effect is increased by providing the elastic body. The outer transmission shaft 14b is provided with two round holes 14l, and the corresponding inner transmission shaft 14a is provided with two first long holes and two second long holes, with two connecting pins 14n and 14n. Both shafts 14a and 14b may be connected (see FIG. 4).

  Further, in the sandbox cleaning sieve according to the present embodiment, the sieve cake may be configured to directly reciprocate without providing a casing, and instead of the transmission shaft 14, a belt and a pulley or string You may comprise by the well-known transmission mechanism by a combination with a roll, The sandbox cleaning sieve machine of such a structure is also contained in this invention. Although the material which comprises the sandbox cleaning sieving machine which concerns on this Embodiment is not specifically limited, Raw materials, such as the fuselage | body part 15, the sieve bowl 8, the support leg part 9, the footplate part 11, and the level adjustment means 12, etc. Is preferably a lightweight material, for example, a metal such as aluminum, duralumin, or titanium, or a plastic having excellent strength such as polycarbonate, FRP, or ABS resin. And operation and work efficiency improve by using a lightweight material.

  The sandbox cleaning sieving machine described in the above embodiment was created, and the cleaning work and the sieving work were performed in the sandbox secretly. In this example, the distance of the reciprocating motion before and after the sieve cake was 10 cm, the number of reciprocating motions was set to about 2 to 6.5 times per second, and the length of the rotor sand scraps was 19 to 20 cm. First, transport the sandbox cleaning sieving machine to the sandbox, and fix the length of the support leg to the extent that the lower end of the rotor scraping piece floats above the ground. The sieving work was carried out in a fixed state. Next, the foot plate part was attached to the tip of the support leg part, and the length of the support leg part was set so that the foot plate part was positioned at the middle position between the lower end part of the rotor scraping piece and the shaft. Furthermore, the through holes of the horizontal adjustment means were appropriately overlapped and fixed with bolts and nuts. In this state, the sandbox was cleaned. Next, the sandbox cleaning sieve was lifted from the sandbox, and after finishing the work, the footboard was removed from the support leg and an auxiliary wheel was attached instead, and the sandbox cleaning sieve was moved to a predetermined storage location.

  As a result of performing the sandbox cleaning operation and the sieving operation, it has been possible to clean up to a depth of 20 cm or more, although the conventional depth of cleaning was only 14 to 15 cm. In addition, clogging of the sieve cake was reduced, and work efficiency was improved. Especially in wet sand, the work efficiency doubled compared to conventional sandbox cleaners. Furthermore, in the sandbox where the grass grows, when a sieve mesh with a comb-like net is installed, the work of brushing and removing grass roots and cilia entangled in the net is dramatically shortened. The work efficiency has been improved several times compared to the sandbox cleaner. As for the sieving work, what has been conventionally performed manually can be performed by one worker by using the sandbox cleaning sieving machine of the present invention, which conventionally requires at least two workers. In addition to becoming, the work time has been shortened and the work has become easier. In addition, when moving the sandbox cleaning sieve, it was confirmed that the auxiliary wheel touches the ground and rotates, so that it can move without any problems even when traveling on a rough ground or floor.

  The sandbox cleaning sieve according to the present invention has a function as a sandbox cleaner as well as a function as a sieve, and is extremely useful from the viewpoint of improving work efficiency and an economical viewpoint.

It is a schematic side view which shows the sandbox cleaning sieve according to the embodiment of the present invention. It is a schematic side view which shows the state which uses the sandbox cleaning sieve machine which concerns on embodiment of this invention as a sieve machine, and explanatory drawing (inside a round frame) which shows a connection-shaped crank part. It is explanatory drawing which shows the level adjustment means of the sandbox cleaning sieve which concerns on embodiment of this invention. It is the side view (a) which shows the state which attached the sieve sieve attachment frame to the sieve sieve of the sandbox cleaning sieve which concerns on embodiment of this invention, and explanatory drawing (b) which shows the flange part of a wheel. The top view (a) which shows the state which attached the sieve sieve mounting frame to the sieve cake of the sandbox cleaning sieve machine concerning embodiment of this invention, side view (b), and explanatory drawing which shows a comb net (inside a round frame) It is. It is explanatory drawing of the transmission shaft of the sandbox cleaning sieve machine which concerns on embodiment of this invention. It is a fragmentary perspective view which shows the state which attached the sieve cake attachment frame to the sieve cake of the sandbox cleaning sieve machine which concerns on embodiment of this invention. It is explanatory drawing which shows the other crank mechanism of the sandbox cleaning sieving machine which concerns on embodiment of this invention.

Explanation of symbols

1: Sand cleaning sieving machine, 2: Driving wheel, 3: Motor, 4: Handle, 5: Car body, 5a: Car body convex part, 6: Sand scrape, 7: Rotor, 8: Sieve pad, 9: Support leg Part, 10: auxiliary wheel, 11: foot plate part, 12: horizontal adjustment means, 12a: L-shaped piece, 12b: clamping part, 12c: lying down, 13: crank mechanism, 13a: crank, 13a ': crank pulley, 13b: Crankshaft, 13c: Slider, 13d: Reducer, 13e: V belt, 13f: Crank pin, 14: Transmission shaft, 14a: Inner transmission shaft, 14b: Outer transmission shaft, 14c: Swivel pin, 14d: Interlocking pulley , 14d ': pulley, 14e: tension pulley, 14f: drive pulley, 14g: belt, 14h: intermittent lever, 14i: spring, 14j: slide groove, 14k: long hole, 14l: round hole , 14n: connecting pin, 14p: thumb screw :, 14q: locking tool, 15: housing part, 16, 16 ': wheel, 16a: flange, 17: elastic body, 18: sieve bowl mounting frame, 19: shift lever , 20: cover sheet, 21: weight balancer, 22: protrusion, 23: guide plate

Claims (6)

A pair of left and right traveling wheels, a vehicle body equipped with a prime mover and a handle for rotating the traveling wheels, and a plurality of sand scraps for scraping sand mixed with impurities on the rear side of the traveling wheels A rotor arranged in a direction, a mesh-like sieve screen for separating the contaminants by placing sand mixed with contaminants on the back side of the rotor on a mesh that reciprocates in a substantially horizontal direction, A foot plate that is attached to the tip of a support leg that can be adjusted in height on both the left and right sides so as to be exchangeable with an auxiliary wheel, and when the sieve is in operation, the sieve is set to an appropriate angle that is horizontal or close to horizontal. A sandbox cleaning sieving machine comprising leveling means for maintaining, and a transmission mechanism that decelerates the rotational motion of the prime mover and converts it to a reciprocating motion by a crank mechanism and transmits it to a sieve slab. As a sandbox cleaner that works while With ability, Sand cleaning sieve machine and having a function as a sieve machine for performing work in a state of stopping the vehicle traveling. The sieve cake is movably mounted in a horizontal direction on a sieve support wheel provided at the bottom of the chassis part connected to the vehicle body, and the chassis parts are provided on both left and right sides. The length is adjustable, and a foot plate part is supported at the tip of the support leg part so as to be exchangeable with the auxiliary wheel, and the front part is connected to the vehicle body through the leveling means, and the leveling means 2. The sandbox cleaning sieve according to claim 1, wherein the sieve cake is maintained at an appropriate angle in the horizontal or near horizontal direction during the operation of the sandbox cleaner and the sieve by switching. The sieve screen is formed by either a lattice or a comb-like netting at least at the bottom of the bottom and side portions, and is selected from any of these sieves and attached in a replaceable manner. The sandbox cleaning sieve according to claim 1 or 2. 2. The impact in the vertical direction is applied to the sieve screen by repeating the reciprocating motion of the sieve cake in the horizontal direction and repeating the operation of being lifted and dropped, or by hitting the sieve mesh with an external means. The sandbox cleaning sieve according to 1 or 2. A screen or reciprocating motion with a screen is provided with an elastic body at the position where they collide in the back-and-forth direction of the reciprocating motion, and the repulsive force when colliding with this elastic body The sandbox cleaning sieve according to claim 1 or 2, wherein the sieve action is improved. In the transmission mechanism that decelerates the rotational motion of the prime mover and converts it to reciprocating motion by a crank mechanism and transmits it to the sieve screen, the transmission shaft is formed by two large and small types of shafts that slide in a nested manner and are telescopically coupled. A plurality of long holes are formed at appropriate intervals in the slide portion of one shaft, a round hole is formed in the slide portion of the other shaft, and the long holes are formed so that the transmission shaft has a desired length. Appropriately selected and overlapped with round holes, pins are attached to both holes, and both shafts are slidably connected within the distance of the long hole, and the repulsion when the sieve cake collides with the elastic body The sandbox cleaning sieve according to claim 1, 2 or 5, wherein the two kinds of shafts slide within a range of a long hole distance by force.

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