JP3211869U - Weed removal equipment - Google Patents

Abstract

The present invention relates to a weed removal device that selects and removes weeds by sieving work at the same time as tillage work and drops crushed soil that has passed through the meshes to the ground, and is particularly suitable for field cultivation in fields where weeds grow. A type of weed removal device is provided. [MEANS FOR SOLVING PROBLEMS] Immediately after a cultivating section that rolls a weed together with soil and throws it back while rotating by rotating a rotor (7) having a plurality of clay pieces (6), it receives the thrown soil and weeds and receives a sieve. It is a weed removing device provided with a sieve 8 for working, and is provided with impact means by reciprocating movement of the sieve in the traveling direction to break up the soil more finely, separate the soil and weed, pass through the sieve mesh and only the crushed soil Drop to the ground. As the impact means by the reciprocating motion, it is preferable to provide a protrusion at a position in contact with the bottom of the sieve tool in the middle of the reciprocating motion, and repeatedly apply an impact in the vertical direction by lifting and dropping the sieve tool. [Selection] Figure 9

Description

  The present invention relates to a weed removal device, and more particularly to a device for removing weed by sieving work at the same time as tillage work, and particularly suitable for removing weeds in upland fields and fields where weeds grow. Relates to the device.

  Conventionally, when performing field cropping especially in fields where weeds are prosperous, it has first been necessary to remove impurities such as unnecessary plants that grow in the fields. When seedlings are transplanted in a field cultivated with such foreign matters mixed, not only will the transplanting be a hindrance, but there is a concern that the survival and growth of the seedlings may be adversely affected by harmful bacteria etc. possessed by the foreign matters.

  In addition, in clay fields, there is an increased risk that the tendency to be adversely affected will be noticeable. Therefore, conventionally, after first weeding weeds with pesticides or manually removing weeds and other debris, secondly using a rotary tiller, and then thirdly crushing the soil. Cultivate, 4th planting embankment forming tool is attached immediately after the rotary tillage part and the nail of the rotary tillage part is replaced with a different shape nail to form a field where seedlings can be transplanted through a total of 4 process operations It was.

  As an example of a conventional weed removal apparatus, Patent Document 1 discloses that when weeding a herbicidal body, only the roots of the weeds are scraped off without removing the roots of the crops by the root cutting function of the mud surface scratching means of the herbicidal body. In addition, each wire body of the weed hooking means is not simply a hard wire structure, but is configured as a wire body having appropriate flexibility, and when the hook protrusion of each wire body comes into contact with the crop. Each wire body bends and this hooking protrusion avoids movement with respect to the crop. On the other hand, the hooking protrusion of each wire body of the weed hooking means scratches the root by the root cutting function of the mud surface scratching means. If weeds such as cut weeds, moss or aquatic plants growing on the upper surface of the mud surface can be easily entangled from the mud surface (by weak force), these weeds can be caught and removed from the mud surface. Since the flexibility of each wire is set to Removing hooking any object weeds only can be selectively removed from the mud surface apparatus is disclosed instead.

JP 2007-097410 A

  Conventionally, especially when performing field cropping in fields contaminated with contaminants, including the work of sieving by hand to remove the contaminants requires labor of the fourth step. It takes one day just to remove things, and it may be impossible to finish a series of work in one day if it includes the work of creating a planting embankment, including the work of transplanting seedlings by forming a planting embankment It was difficult to carry out in a short period of time.

  The purpose of the present invention is to solve the above-mentioned problems. The weeds are selected by sieving work at the same time as the plowing work, and only the crushed soil that has passed through the sifter is dropped on the ground to remove it from the field. An object of the present invention is to provide a self-propelled weed removal device that can easily remove weeds.

  In order to solve the above problems, in the present invention, the plowing is carried out immediately after the plowing unit that rakes up the weeds together with the soil mass and throws it backward while rotating by rotating a rotor having a plurality of pieces of clay. A weed removal device comprising a sieve tool that receives sieving and weeds thrown from a section and performs a sieving operation, comprising a shocking means by reciprocating movement of the sieving tool in a traveling direction and further disaggregating the soil mass and A self-propelled weed removing device that separates the weeds and passes only a sieve to drop the crushed soil onto the ground.

  By this device, a self-propelled weed removal device that can easily remove weeds from fields etc. by selecting weeds by sieving work at the same time as plowing work, and dropping only the crushed soil that passed through the sieve mesh to the ground. Can be provided.

  With the weed removal device according to the present invention, conventionally, weed removal work that takes a long time and a lot of labor can be performed easily and in a short time by one operation. In addition, the sieving tool is broken down more finely by the impact of reciprocating motion in the traveling direction to break up the soil into crushed soil, and the crushed soil passes through the sieving mesh and spreads on the ground and accumulates in layers to contain air between the soil particles. It became possible to form a soft embankment. At the same time, the whole plant and plant roots are removed by the sieving operation, so that not only the transplantation trouble when transplanting the seedling into the conventional planting embankment is avoided, but also the effect of positively affecting the seedling survival and growth.

  The weed removal device according to the present invention is capable of pulverizing the clot by finely resolving the clot by impact by reciprocating motion in the traveling direction, and further reciprocating the screen horizontally over an appropriate distance, By combining the impacts in the vertical direction, it is possible to break up the soil mass more finely and increase the ability to sort weeds (including unwanted crop residues) by sieving. Further, in the case where an elastic body is provided at a position where the front and rear screens of the housing collide, the screen functions as a result of the screen tool colliding with the elastic body and the repulsive force improves the screen function of the screen. The effect is increased. For example, even weeds in which soil clumps are integrally entangled with the cilia of the roots, only the soil is appropriately crushed and sieved by the sieve function, and the weeds and their roots are selectively removed from the field etc. It becomes possible.

  Further, the weed removal device according to the present invention can cope with both the case where the work is performed while the vehicle body is traveling and the case where the vehicle body is used and when the rotor is used as a sieving machine with the rotor stopped. Since the screen can be maintained at an appropriate angle from horizontal to horizontal, it can also be used as a simple weed removing screen.

It is a figure explaining the U-shaped metal fitting provided in two places of the edge part upper end of a sieve cake. It is a figure explaining the state that the sieve weed is going to be attached to the weed removing device according to the present invention, so that the hole of the denden bolt of the weed removing device and the hole of the U-shaped metal fitting of the sieve cake are concentric. Indicates that it will be installed. It is a figure explaining the lynch pin penetrated and inserted in the hole of a denden bolt, and the hole of the U-shaped metal fitting of a sieve bowl. The pin part of the lynch pin is inserted through the hole of the denden bolt and the hole of the U-shaped metal fitting of the sieve bowl, and the push nut abuts between the uppermost edge of the sieve bowl and the head part of the lynch pin. FIG. It is a figure explaining the final state which fixed the sieve sieve using the lynch pin, and the figure explaining that the sieve sieve can transmit the reciprocating motion power of the sieve function from the denden bolt through the pin part of the lynch pin. It is. It is a figure explaining that it becomes the same structure also about the other U-shaped metal fitting about the state shown in FIG. It is a figure explaining the condition where the removal of weeds was started with the weed removal apparatus of this invention in the field where one side was covered with weeds. It is a figure explaining the whole picture of the weed removal device of the present invention. It is a schematic side view which shows the weed removal apparatus which concerns on embodiment of this invention. It is a schematic side view which shows the state which uses the weed removal apparatus which concerns on embodiment of this invention as a sieving machine, and explanatory drawing (in a round frame) which shows a connection-shaped crank part. It is explanatory drawing which shows the level adjustment means of the weed removal apparatus which concerns on embodiment of this invention. It is side view (a) which shows the state which attached the sieve tool attachment frame to the sieve tool of the weed removal apparatus 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 attachment frame to the sieve tool of the weed removal apparatus which concerns on embodiment of this invention, side view (b), and explanatory drawing (inside a round frame) which shows a comb net is there. It is explanatory drawing of the transmission shaft of the weed removal apparatus which concerns on embodiment of this invention. It is a fragmentary perspective view which shows the state which attached the sieve attachment frame to the sieve of the weed removal apparatus which concerns on embodiment of this invention. It is explanatory drawing which shows the other crank mechanism of the weed removal apparatus which concerns on embodiment of this invention.

  The self-propelled weed removing device according to the present invention is a cultivating unit immediately after a plowing unit that rakes up weeds together with a soil block while rotating by rotating a rotor having a plurality of pieces of clay. It is a self-propelled weed removal device equipped with a sieve tool that receives sieved soil blocks and weeds and performs a sieving operation. It is characterized by separating weeds, passing through sieves, and dropping only crushed soil onto the ground.

  In general, land where unnecessary weeds grow or are contained, that is, typically in fields, weeds grow one after another over the course of the year. Often grows naturally without any special care. In addition, the fields that will be cultivated and planted with new crops contain many remnants and residues (such as roots and leaves) of various crops that have been planted in the previous field and have already been harvested. ing.

  For example, leafy crops such as cabbage and spinach (vegetables), even if harvested parts for sale or food use (generally exposed leaves on the ground), the root part and unnecessary residual leaves are fielded. At first glance, even if the surface is beautiful, many roots and leaves are buried in the soil. If such residual leaves and roots are left unattended, they will cause undesired fungi to grow and damage the growth of new crops. The whole will be treated with chemicals. Although treatments using such chemicals are performed outdoors, they are carried out over a long period of time in a wide range of fields, so that the workers are exposed to a high concentration chemical atmosphere throughout the day. Therefore, it is preferable to avoid it as much as possible.

  In addition, weeds will naturally grow over a wide area in fields that have been rested without being planted for a while. Although it is possible to treat such weeds with chemicals, as described above, work using chemicals that are undesirable for the human body will be performed for a long time, so if possible, it should be avoided. This is not a favorite work for farmers. Furthermore, crops grown without using any chemicals, such as organically grown vegetables and pesticide-free vegetables, have become end-users from the perspective of recent consumer-oriented and health-oriented trends and environmental impacts. It tends to be sought after.

  From the above viewpoint, self-propelled that can carry out mechanical and physical uprooting weeding, which has been performed by human power work, more easily and with less labor, without using any chemicals. If weed weed removal device, it can be considered preferable because the labor load of workers can be reduced. In this case, if weed roots remain in the soil, new shoots grow immediately from the remaining roots, or the roots rot and cause fungal growth. It must be able to remove not only leaves but also roots.

  The self-propelled weed removal device of the present invention was devised from the above viewpoint, and can plow and remove the weeds and residual roots contained in the soil by cultivating the soil in the field and sieving it. A device is proposed. More specifically, the soil and weeds in the cultivated field are automatically scraped and loaded on the sieve in turn, and the sieve is reciprocated, so that the loaded soil mass is reciprocated on the sieve. Unraveling, separating soil clumps attached to the roots of weeds, etc., selecting weeds and roots on a sieve and returning only the soil from the sieve to the ground. Is efficiently separated from the roots. In addition, the weeds that collided with the side walls of the sieve are crushed by the impact and the soil and weeds are separated, and only the crushed soil falls to the ground.

  Also, if such a sieving operation is performed manually, the speed of reciprocating motion will be slow, so that the sieving operation is impossible because the fine roots (weed cilia etc.) are entangled with the sieving and the entire mesh is blocked. However, it is very difficult to remove the tangled cilia. In the self-propelled weed removal apparatus according to the present invention, for example, 360 reciprocations at a one-way distance of 10 centimeters per minute, that is, six reciprocations per second, is 120 centimeters per second. (1.2m) is also moved. This fast reciprocating movement of the sieve exerts inertia on the soil, weeds, etc. loaded on the cocoon, and the movement of the cocoons against each other causes the cilia to entangle with the cocoon. Even if it is entangled, it is cut off, so that the mesh of the cocoon is not blocked and the sieving work can be performed, and it becomes possible to remove weeds and the like with the roots.

  The screen of the weed removal device can be installed and removed by the bolts coming out of the mounting bar located on the back side of the handle to which the sieve screen is attached, or by attaching or removing the sieve screen with a washer and wing nut through the sieve screen mounting part. Although it is possible, if it has been operating for a long time, the screw may loosen due to vibration and the nut may come off, causing the nut and washer to enter the field, which may cause damage to the sieve cake and the mounting portion. In addition, it takes a certain amount of time to attach and remove the nut, and it is expected that the phlegm can be removed and attached more quickly and easily. The sieve cake can be replaced with various sieve meshes according to the characteristics of the ground or field from which weeds are removed and the characteristics such as the size and shape of the weeds to be removed.

  On the other hand, conventionally, it is not known that the lynch pin directly contributes to the transmission of power, etc., but in the present invention, the lynch pin is used for fixing the sieve screen and transmitting the reciprocating motion power. Smooth power transmission is possible, and attachment and removal are possible with one touch.

  A U-shaped bracket for pin guides (not necessarily U-shaped, for example, rectangular, triangular, hollow cylindrical, etc.) on the lower side of the frame where the mounting pins hit the left and right sides of the screen mounting part By attaching (typically welding and fixing), the ring of the lynch pin (which is a spring) is hung on the U-shaped bracket, so this can serve as a hook and prevent the pin from coming off, You can also prevent the pin from falling to the left or right. FIG. 1 is a diagram illustrating U-shaped metal fittings 1100 (1) and 1100 (2) provided at two positions on the upper edge of the edge portion of the sieve cake 1000. FIG. FIG. 2 is a diagram illustrating a state in which the sieve screen 1000 is about to be attached to the weed removal device according to the present invention. The hole of the denden bolt 2000 of the weed removal device and the U-shaped fitting 1100 (1 ) Hole is shown to be concentric. In FIG. 2, only the U-shaped bracket 1100 (1) is shown, but the U-shaped bracket 1100 (2) has the same configuration.

  A denden bolt (having a hole of the same diameter on the head) set on the rod mounting bar protrudes from the handle of the sieve, and a linch pin from above the handle frame attaches to the bolt hole and U-shaped bracket. A stable one-touch phlegm attachment device that can withstand violent reciprocation without detaching by hooking the hook at the two places on the upper and lower frames of the insertion and handle. FIG. 3 is a view for explaining the lynch pin 3000 inserted through the hole of the denden bolt 2000 and the hole of the U-shaped metal fitting 1100 (1) of the sieve sieve 1000. As shown in FIG. 3, the lynch pin 3000 includes a ring portion 3200, a head portion 3300, a push nut 3400, and a pin portion 3100.

  In addition, by using denden bolts, the mounting part can be adjusted according to the flange to be mounted. In addition, by fitting the push nut to the neck of the lynch pin, even if the mounting part is deformed due to intense movement, the push nut umbrella will not be displaced because it is wide. Thus, although it is a sieve device with a relatively simple structure, it is a reliable and stable sieve attaching device that does not come off or break almost 100%.

  FIG. 4 shows that the push nut 3400 passes through the hole of the denden bolt 2000 and the hole of the U-shaped metal fitting 1100 (1) of the sieve sieve 1000 through the pin portion 3100 of the linch pin 3000, and the push nut 3400 is the uppermost end of the sieve sieve 1000. It is a figure explaining the state contact | abutted between the edge part and the head part 3300 of the linch pin 3000. FIG. In FIG. 4, reference numeral 4000 denotes a string that gently locks the lynch pin 3000 to the weed removing device so that the lynch pin 3000 can move to some extent but is not lost or dropped. Thereafter, as shown in FIG. 5, the ring portion 3200 is lowered, and the U-shaped fitting 1100 (1) and the denden bolt 2000 are included in the ring portion 3200 and locked by the function of the lynch pin itself.

  FIG. 5 is a diagram for explaining a final state in which the sieve screen 1000 is fixed using the lynch pin 3000, and the sieve screen 1000 is reciprocated from the Denden bolt 2000 through the pin portion 3100 of the lynch pin 3000. Will be communicated. Further, in the state shown in FIG. 5, the ring portion 3200 of the lynch pin 3000 is locked by its own function, so that it is stably locked and does not easily come off. Since functions and configurations of the lynch pin 3000 itself can be applied, a description thereof is omitted here.

  FIG. 6 is a diagram for explaining that the U-shaped metal fitting 1100 (2) has the same configuration in the state shown in FIG. As shown in FIG. 6, when power is transmitted from the denden bolts 2000 at two locations, the sieve sieve 1000 reciprocates more stably and efficiently, and the durability of the sieve function is improved. Become.

  In the self-propelled weed removing device according to the present invention, preferably, the impact means by reciprocating motion repeats the operation of lifting and dropping the sieve tool by a protrusion provided at a position in contact with the bottom of the sieve tool during the reciprocating motion. A directional impact is applied to improve the sieving action. As a result, in addition to the reciprocating motion in the horizontal plane, the vertical sieving motion is weighted, so the soil is separated from the weeds and their roots, and the soil contains moisture adhering to the weeds, etc. The function of sieving is more powerfully and stably exhibited. In addition, this makes it possible to further avoid clogging of the sieve due to tangled cilia and weeds peculiar to weeds.

  Further, the self-propelled weed removing device according to the present invention is more preferably configured such that the impact means by reciprocating motion is subject to impact in the front-rear direction by a repulsive force caused by colliding with an elastic body provided at a collision position in the front-rear direction of the reciprocating motion. It is added to improve the sieving action, and is characterized by that. Thereby, while maintaining and improving the sieving function, damage and destruction of the sieving pad 1000 can be avoided and durability can be improved.

  The self-propelled weed removing device according to the present invention is more preferably characterized in that the sieve tool (for example, sieve sieve 1000) is detachably locked to the weed removing device by a linch pin. As a result, the attachment and detachment can be performed very easily and quickly, and it is possible to reliably avoid the accident that the operator unintentionally disengages after the attachment.

  Further, in the self-propelled weed removing device according to the present invention, more preferably, the sieve is configured such that the bottom portion thereof is configured in a comb shape that is configured in a direction perpendicular to the reciprocating motion instead of a mesh shape. Features. As a result, the comb-shaped wire portion reliably separates the weeds from the soil and the like, and it is possible to efficiently unravel the soil mass and return it to the soft soil. Although it depends on the soil where weeds grow and the characteristics of the weeds themselves, it is particularly effective for weed removal in places where there are a lot of hard soil blocks and hard weeds.

  Moreover, the self-propelled weed removing apparatus according to the present invention is more preferably characterized in that the sieving tool has a basket shape having a sieving function at the bottom and side surfaces. Thereby, the soil can be efficiently separated from the weeds that collided with the side wall portions due to the intense reciprocating motion, and the soil mass can be unraveled. And since the soil can be sieved also from the side surface, the sieving function is improved.

  FIG. 7 is a diagram for explaining a situation in which weed removal is started on a field covered with weeds on one side, and FIG. 8 is a general view of the weed removal apparatus of the present invention. It is a figure explaining. From FIG. 7, it can be understood that after processing (after passing) by the self-propelled weed removing device of the present invention, the weeds are smoothed and removed with a predetermined width. The U-shaped metal fittings 1100 (1) and 1100 (1) of the sieve bowl 1000 are not limited to the U-shape, and the pin portion 3100 of the lynch pin 3000 is inserted through, and the reciprocating sieve motion is transmitted from the Denden bolt 2000. As long as it can be locked, a hollow pipe or the like may be used, and its shape is arbitrary.

  The best mode for carrying out the invention (hereinafter abbreviated as “embodiment”) will be described in more detail with reference to the drawings. Therefore, the weed removal apparatus of the present invention is not limited at all by this embodiment. In this embodiment, a weed removal device of a type provided with a rotor having a scrap piece and a sieve tool in a walking type rotary tiller will be described, but this type using a tractor instead of the walking type rotary tiller is also described. Included in the idea. FIG. 9 is a schematic side view showing a weed removing device according to an embodiment of the present invention, and FIG. 10 is a schematic side view showing a state in which the weed removing device according to an embodiment of the present invention is used as a sieving machine. FIG. 11 is an explanatory view showing the leveling means of the weed removing apparatus according to the embodiment of the present invention, and FIG. 12 shows the sieve tool of the weed removing apparatus according to the embodiment of the present invention. It is a side view which shows the state which attached the attachment frame, FIG. 13 is also a top view and a side view, and FIG. 15 is a partial perspective view. FIG. 14 is an explanatory diagram of a transmission shaft of the weed removing device according to the embodiment of the present invention.

  As shown in FIG. 9, the weed removing device 1 according to the 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 tilling portion including a rotor 7 in which a plurality of soil pieces 6 for scraping up dirt and the like mixed with foreign matters are disposed in the circumferential direction on the rear side of the traveling wheel, and substantially on the rear side of the rotor. A reticulated mesh screen 8 that reciprocates in the horizontal direction, and a foot plate 11 that is attached to the tip of a support leg 9 that can be adjusted in height on the left and right sides of the screen so as to be exchangeable with the auxiliary wheel 10. The leveling means 12 for maintaining the sieve tool at an appropriate angle that is horizontal or close to horizontal while the sieve tool is in operation, and the rotational movement of the prime mover is decelerated and changed to reciprocating movement by the crank mechanism 13. And a transmission mechanism 14 for transmitting to.

  In the weed removal apparatus 1, the sieve 8 is moved in the front-rear direction on a pair of wheels 16 and 16 provided at two positions on the front and rear sides of the bottom 15 connected to the vehicle body 5. A support leg that is freely and detachably mounted, and that the casing part is provided on both the left and right sides, the length of which is adjustable, and a foot plate part 11 is attached to the tip of the leg part 11 so as to be exchangeable with the auxiliary wheel 10. The front part is connected to the vehicle body 5 through the level adjustment means 12 and is supported by the part 9, and the sieve tool is maintained at an appropriate angle that is horizontal or close to horizontal during the operation of the weed removal device and the sieve machine. Is done.

  As shown in FIG. 12, 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 sieve 8 is mounted 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. 9, slide grooves 14j are formed in the front and rear directions on the left and right side plates of the casing portion 15, and both end portions of the sieve mounting frame 18 are slidably attached to the slide grooves 14j. Yes.

  On the other hand, as shown in FIG. 9, 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 changed into motion and transmitted to the sieve 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 tool 8 (refer FIG. 16). Then, as shown in FIGS. 13 and 15, the rotating locking tool 14q is placed in the vertically long position and tightened with the thumbscrew 14p, and the sieve tool 8 is detachably attached to the sieve tool mounting frame 18, as shown in FIG. Further, the transmission shaft 14 is rotatably connected to the sieve attachment frame 18 by the universal pin 14c, and as the transmission shaft 14 reciprocates by the crank mechanism 13, both ends of the sieve attachment frame 18 are slide grooves. It slides along 14j, and it is comprised so that the sieve 8 may reciprocate back and forth on the wheels 16 and 16. In addition, as already demonstrated, it replaces with the thumbscrew 14p and the latching by the linch pin 3000 is more preferable.

  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 sieve device can be activated or stopped by intermittently transmitting 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 tool 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 tool or the fuselage part to the vehicle body at an appropriate angle so that the sieve tool or the fuselage part maintains a horizontal or near horizontal angle during work. It is a tool. Although the level adjustment means of the weed removal apparatus according to the present embodiment will be described, it is not limited to such an embodiment. As shown in FIG. 11, the horizontal adjusting means 12 is fixed to the L-shaped piece 12a fixed to the horizontal rod 12c provided in the lateral direction in the vicinity of the front lower portion of the casing 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 tool 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. 9, the housing portion 15 and the sieve tool 8 are fixed in a slightly inclined state. However, when the weed removal device 1 travels, the rotor 7 sinks deeper than the central axis of the rotor while scooping up the soil, so that the sieving tool 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 housing portion 15 and the sieve tool 8 is fixed in a state where it is lifted with respect to the vehicle body, so that the housing portion 15 and the sieve device 8 are maintained substantially horizontal and work as a sieving machine is possible ( (See FIG. 10). 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).

  Next, as shown in FIG. 9, the tilling part is on the rear side of the traveling wheel 2, and the rotor 7 is provided with screw-like lifting blades for bringing soil etc. to the intermediate part at both ends of the shaft (see FIG. 9). (Not shown), 4 to 8 pieces of soil scraping 6 for scooping up soil etc. are disposed at equal intervals in the circumferential direction at two or a plurality of positions in the middle of the both spreading blades. The clay piece 6 has a slightly wider plate shape on the tip side than the root side and is curved in the rotation direction. The soil or the like scraped up by the rotation of the clay piece 6 is received by the sieve tool 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 sieve tool 8, and a part of the soil or the like scraped up by the clay piece 6 Is brought into contact with the cover sheet 20 and guided to the sieve 8 by the guide plate 23. Further, the cover sheet 20 is provided so as to be openable from the rear end part to the upper part of the sieve tool 8, and when used as a sieve machine, the sheet is lifted upward to open it, and then using a scoop etc. Etc. can be put into the sieve 8. As the sieving tool 8, sieving tools having different widths can be exchangeably arranged according to the planting embankment of the field to be formed. Furthermore, the surface of the planting embankment to be formed can be averaged as much as possible by adjusting the distance between the clay pieces 6 arranged in the two places according to the width of the sieve tool 8. Further, the mesh of the sieve is not particularly limited depending on the type of soil or crop, but can be appropriately selected from a range of, for example, 5 to 20 mm.

  Furthermore, it is one of the features of the weed removing device according to the present invention that the sieve tool 8 reciprocates back and forth and an impact in the vertical direction is applied to the sieve tool 8. There is no particular limitation on the method of applying a vertical impact to the sieve 8. For example, as shown in FIG. 12, a protrusion 22 is provided at a position where the outer bottom portion of the sieve 8 is in contact with the wheel 16 or a protrusion 22 is provided at a position where the outer peripheral portion of the wheel 16 is in contact with the outer bottom portion of the sieve tool. (Not shown) The screen 8 is lifted by being brought into contact with the protrusions, and then repeatedly hits the upper wheel 16 ′ and rebounds and drops, and an impact in the vertical direction is applied to the screen 8. A device in which the wheel 16 'is omitted is also included in the present invention. Further, as shown in FIG. 13, a lattice-like net is usually used for the sieve tool. However, in the case of grassy fields, plant roots, and fields with many cilia, they are entangled in the net and close the mesh, which must be removed many times, which hinders work. Therefore, as shown in FIG. 13 (a), it is preferable to change the net at least at the bottom to a comb shape instead of a lattice shape. Usually, 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 tool, it is possible to efficiently sort the 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 housing part collide with each other in addition to the impact in the vertical direction on the sieve tool 8 or separately from the impact in the vertical direction. In the present invention, the elastic member 17 collides with the elastic body 17 to improve the sieving action of the sieving tool 8 by the repulsive force (see FIG. 12). Also, a slide groove 14j attached to the sieve tool and reciprocating with the sieve tool, for example, a slide groove 14j in which the sieve tool mounting frame 18 collides in a slide groove 14j in which the sieve tool 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 a collision of the sieve member with the elastic body 17. As shown in FIG. 14, two transmission shafts (an inner transmission shaft 14a and an outer transmission shaft 14b) are slidably provided in a mutually slidable manner, and the inner transmission shaft 14a has a first long hole and a second long hole. 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 the shafts 14a and 14b (see FIGS. 14c to 14e). In this way, the length of the transmission shaft 14 can be adjusted when adjusting the level of the sieving tool according to the sieving machine specification or the planting embankment forming machine specification.

  Furthermore, the position where the sieve 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 sieving tool 8 is pulled in the direction of the arrow in the state shown in FIG. 14c before colliding with the elastic body 17, the sieving tool 8 momentarily turns back against the elastic body 17 at the same time as the sieving tool 8 collides with the elastic body 17. 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. 14d, so that the sieving tool 8 instantly does not wait 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 relieved, and the direction change accompanying the reciprocating motion of the sieve tool is smoothed. To be made. Due to this instantaneous change of direction, the impact force with which the sieve tool 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. 12).

  Further, in the weed removal apparatus according to the present embodiment, the sieve device may be configured to directly reciprocate without providing a housing portion, and instead of the transmission shaft 14, a belt and a pulley or a string and a roll And a weed removing device having such a configuration is also included in the present invention. Although the material which comprises the weed removal apparatus which concerns on this Embodiment is not specifically limited, The materials, such as the driver's body part 15, the sieve tool 8, the support leg part 9, the footplate part 11, and the level adjustment means 12, are shown. A lightweight material such as a metal such as aluminum, duralumin, or titanium, or a plastic having excellent strength such as polycarbonate, FRP, or ABS resin is preferable. And operation and work efficiency improve by using a lightweight material.

  In addition, the weed removal device of the present invention may be provided with a transplanter for transplanting cabbage, lettuce, root vegetables, etc. on the formed embankment and a seeder for seeding or rose seeding on the rear of the weed removal device. Good. Or you may comprise so that the fertilizer etc. which spray a fertilizer according to a crop may be equipped with either or both of a rotary tiller thru | or tractor. Furthermore, the weed removal device of the present invention is not limited to the field. For example, when the field is used for field cultivation after rice cultivation, after harvesting the rice, or in the field where impurities such as wood chips, plant roots and stones are mixed due to the earthquake disaster. This is very useful for removing the foreign matter from the field and regenerating the field.

  The weed removal device described in the above embodiment was created, and a series of operations related to the removal of foreign matters or the formation of planting embankments was performed in fields where foreign matters such as wood chips, plant roots and stones were mixed. . In this example, the screen uses a 10 × 10 mm mesh with a width of 400 mm, the distance of the reciprocating motion before and after the screen is 100 mm, and the number of reciprocating motions is set to about 2 to 6.5 times per second. The rotor was provided with four rows of four pieces of 190 to 200 mm in length, for a total of eight pieces. First, the weed removal device is transported to the field, and the length of the support leg is extended and fixed so 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 portion was attached to the tip of the support leg portion, and the length of the support leg portion was set so that the foot plate portion was located at the intermediate position between the lower end portion of the rotor scrap 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, a series of operations related to the removal of impurities in the field or the formation of planting embankments was performed. Next, the weed removal device was lifted from the field, and after the work was completed, the foot plate portion was removed from the support legs, and an auxiliary wheel was attached instead, and the weed removal device was moved to a predetermined storage location.

  Moreover, when the soil forming the planting embankment was taken, a soft state including air between the soil particles could be confirmed. In addition, clogging of the sieve was reduced, and work efficiency was improved. Furthermore, in the field where grass grows, when attaching a sieve tool with a comb-shaped net, the work of brushing and removing grass roots and cilia entangled in the net is dramatically shortened. Improved several times. As for the sieving work, by using the weed removal device of the present invention, what was conventionally done manually, so that at least two workers were required by one worker. Not only has it become, but the work time has been shortened, making the work easier. In addition, when moving the weed removal device, 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 weed removal device according to the present invention relates to a method and an apparatus for removing a foreign substance by a sieving operation at the same time as a plowing operation and forming a planting embankment by accumulating crushed soil that has fallen on the ground through a sieve mesh. It is very useful from the viewpoint of improvement of work efficiency and economical viewpoint by using it as part of the field crop work in the field where the water is mixed.

  DESCRIPTION OF SYMBOLS 1: Weed removal apparatus, 2: Wheel for driving, 3: Motor | power_engine, 4: Handle, 5: Car body, 5a: Car body convex part, 6: Soil piece, 7: Rotor, 8: Sieve tool, 9: Support leg part DESCRIPTION OF SYMBOLS 10: Auxiliary wheel, 11: Foot board part, 12: Horizontal adjustment means, 12a: L-shaped piece, 12b: Holding part, 12c: Recumbent part, 13: Crank mechanism, 13a: Crank, 13a ': Crank pulley, 13b : Crankshaft, 13c: slider, 13d: speed reducer, 13e: v belt, 13f: crank pin, 14: transmission shaft, 14a: inner transmission shaft, 14b: outer transmission shaft, 14c: universal 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: Hole, 14n: Connecting pin, 14p: Thumbscrew :, 14q: Locking tool, 15: Housing part, 16, 16 ': Wheel, 16a: Flange, 17: Elastic body, 18: Screen attachment frame, 19: Shift Lever, 20: cover sheet, 21: weight balancer, 22: protrusion, 23: guide plate.

Claims (6)

Immediately after the plowing section that scrapes the weed together with the soil while running by rotating a rotor having a plurality of pieces of clay, and receives the soil and weed thrown from the plowing section and sifts. A self-propelled weed removal device equipped with a sieving tool,
The sieving tool is provided with impact means by reciprocating movement in the traveling direction to further break up the soil, separate the soil and the weeds, pass the sieve mesh, and drop only the crushed soil onto the ground. Traveling weed removal device. The impact means by the reciprocating motion improves the sieving action by repeatedly applying an impact in the vertical direction by repeatedly lifting and dropping the sieve tool by a protrusion provided at a position in contact with the bottom of the sieve tool during the reciprocating motion. The self-propelled weed removing apparatus according to claim 2, wherein The impact means by the reciprocating motion improves the sieving action by applying an impact in the front / rear direction by a repulsive force caused by collision with an elastic body provided at a collision position in the front / rear direction of the reciprocating motion. The self-propelled weed removing device according to claim 1 or 2. The self-propelled weed removal device according to any one of claims 1 to 3, wherein the sieve tool is detachably locked to the self-propelled weed removal device by a lynch pin. The said sieve tool is comprised in the comb shape by which the bottom part was comprised in the direction perpendicular | vertical with respect to the said reciprocation instead of mesh shape. A self-propelled weed removal device as described in 1. The self-propelled weed removal apparatus according to any one of claims 1 to 5, wherein the sieving tool has a basket shape having a sieving function at a bottom and a side surface.