JP4797604B2 - Intercostal weeding device - Google Patents

Description

  The present invention relates to an intercostal weeding device that cuts and scrapes weeds that grow in an intercostal space (groove).

  Conventionally, as an intercostal weeding device, as described in Japanese Patent Application Laid-Open No. 9-37604, a plurality of cultivate claws are provided at the rear of the vehicle body, and rotary tillage claws are provided on both the left and right sides of the cultivate claws, so that the vehicle travels. Along with this, there is known a method of cutting the surface of the ridge with the cultivated portion and weeding by cutting the ridge portion with the left and right tilling claws.

Further, as described in Japanese Patent Laid-Open No. 10-164903, a blade-type weeding rotor that rotates horizontally is attached to a mounting ring provided on the rotary shaft protruding left and right at the lower end of the chain case so as to be separated from the left and right. Some weeds are removed with a weeding rotor.
JP-A-9-37604 Japanese Patent Laid-Open No. 10-164903

  In the intercostal weeding device that cuts the surface of the ridge with the cultivate claw and cuts the ridge groove with the cultivating nail, the rotary cultivating nail is used to weed the ridge groove portion. The weeds were tightly wound around the mounting base, and it was necessary to remove these weeds during the work.

  In addition, what weeds with the blade-shaped weeding rotor can be effectively weeded at the bottom of the ridge groove, but it does not remove the weed that grows on the inclined surface of the ridge or falls on the ridge groove from the top of the ridge, Weeds often entangled with the weeding rotor mounting ring, and work had to be interrupted to remove the entangled weeds.

  Therefore, the present invention aims to provide a weeding device that cuts not only the bottom of the trough groove but also the weeds of the sloping groove surface and prevents the weed that has fallen on the trough from the top of the trough to be wound around the shaft. To do.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention of claim 1 is constructed by attaching left and right weeders 14 and 14 to the left and right sides of the drive shafts 2 and 2 projecting in the left and right direction at the lower part of the transmission case 1 that houses the transmission mechanism. The weeder 14 includes a large-diameter inner panel 4 close to the drive shaft and a small-diameter outer panel 5 far from the drive shaft, and the right weeder 14 includes a large-diameter inner panel close to the drive shaft. A blade blade 3 having a main blade portion 6a, which comprises a body 4 and a small-diameter outer plate body 5 far from the drive shaft and whose blade edge rotates concentrically with the rotation center, is provided on each of the left and right weeders 14 and 14, respectively. An inclined blade having a large diameter inner plate 4 close to the drive shaft and a small outer plate 5 having a small diameter far from the drive shaft. parts 6b and furrow weeding apparatus forms form a.

  In this configuration, when the grooving portion is moved while the drive shaft 2 is driven to rotate, the weed at the bottom of the grooving portion is cut by the main blade portion 6a of the blade blade 3, and the inclined blade portion 6b of the blade blade 3 The weeds below the sloped surface of the groove are cut from the root together with the soil surface.

Further, the invention of claim 2 is a blade blade 3 provided over a large-diameter inner board 4 close to the drive shaft provided in each of the left and right weeders 14 and 14 and a small-diameter outer board 5 far from the drive shaft. together with constituted by two members of the inner blade 3a and the outer blade 3b, together with the superposed central portion of the inner blade 3a and the outer blade 3b slidably fixed, the large-diameter inner panel body 4 close to the drive shaft drive shaft 2. The intercostal weeding device according to claim 1, wherein the interval between the outer diameter plates 5 having a small diameter far from the center can be changed .

In the configuration of this second aspect, the degree of overlap between the inner blade 3a and the outer blade 3b of the blade blade 3 is changed, and the distance between the large-diameter inner board 4 close to the drive shaft and the small-diameter outer board 5 far from the drive shaft. You can also change the shaving width by changing and fixing each.

In the invention of claim 1, the weed at the bottom of the ridge groove is cut by the main blade portion 6a of the blade blade 3, and the weed at the lower portion of the inclined surface of the ridge groove is scraped by the rotation of the inclined blade portion 6b of the blade blade 3, Furthermore, weeds that fall from the upper part of the ridge so as to cover the ridge groove are cut by the inclined blade portion 6 b of the blade blade 3. And since the blade blade 3 is attached to the large-diameter inner plate body 4 close to the plate-like drive shaft and the small-diameter outer plate body 5 far from the drive shaft , weeds are prevented from entering the rotation inside of the blade 3, Weeds can be less tangled around the rotating part, and work can be continued longer than before.

  Further, in the invention of claim 2, when the groove width is different, the cutting width can be changed so that weeding is performed in one grooving operation without requiring another part.

Embodiments of the present invention will be described below with reference to the drawings.
In this embodiment, the riding management machine 10 is equipped with a furrow weeding device 12.
As shown in FIG. 1, an intercostal weeding device 12 is connected to a rear portion of the vehicle body of the riding management machine 10 via a lifting device 11 so as to be lifted and lowered.

  This intercostal weeding device 12 includes a transmission box 13 for transmitting the PTO power of the riding management machine 10, a transmission case 1 provided in parallel with the transmission box 13 downward, and left and right sides of the lower end of each transmission case 1. Drive shafts 2, 2 projecting in a direction, weeders 14, 14 attached to the left and right side portions of the drive shafts 2, 2, and an upper cover covering the upper and upper outer sides of each weeder 14 15 and a tail wheel 16 that is attached to the frame portions of the upper covers 15 and 15 so as to be adjustable up and down. A groove plate 9 is attached to the lower part of each transmission case 1.

  As shown in FIGS. 2 and 3, the weeder 14 includes a large-diameter inner platen 4 that is rotated adjacent to the transmission case 1 and a small-diameter outer platen 5 that is rotated on the heel U side. The blade 3 is attached over the inner and outer plate bodies 4 and 5.

  The inner disk body 4 is a disk-shaped disk body welded to the inner end of the inner cylinder shaft 18 fixed to the drive shaft 2 with a pin 17, and a mounting flange 22 is welded to the outer end of the inner cylinder shaft 18. The mounting flange 22 is pressed against the end surface of the drive shaft 2 by the bolt 20 and the nut 21 to stabilize the inner cylinder shaft 18. A flange 24 welded to the extension inner cylinder shaft 23 is brought into contact with the attachment flange 22 of the inner cylinder shaft 18, and the extension inner cylinder shaft 23 is attached on the axis of the inner cylinder shaft 18 with bolts 25 and nuts 26.

  The outer disk body 5 is a disk-shaped disk body that is welded to the outer end portion of the outer cylinder shaft 19 that is externally fitted to the extended inner cylinder shaft 23 and fixed by a pin 27, and the extended inner cylinder shaft 23 and the outer cylinder shaft 19. Are provided with three holes for fitting the pins 27, and the positions of fitting the pins 27 to the extended inner cylinder shaft 23 and the outer cylinder shaft 19 are changed so that the distance between the inner board body 4 and the outer board body 5 is increased. It can be changed.

  The blade blade 3 is composed of two members, an inner blade 3 a and an outer blade 3 b, and an intermediate portion is fixed with a metal 30, a bolt 31 and a nut 32. The inner blade 3a stacked from the outside is provided with a bolt hole, and the outer blade 3b stacked from the inside is provided with a long hole in the longitudinal direction, and the interval between the mounting portions of the inner blade 3a and the outer blade 3b is set to the inner plate body 4 and the outer plate. The distance between the bodies 5 is adapted. The gold 30 is bent in an L shape and brought into contact with the back surface of the blade so that the inner blade 3a and the outer blade 3b are not bent. The overlapping portion of the inner blade 3a and the outer blade 3b is a main blade 6a whose blade is parallel to the axial direction of the drive shaft 2.

  The inner blade 3a is bent at an inner portion at a right angle, and an end thereof is fitted into the clasp 33, and is attached to the outer side of the inner plate body 4 with a bolt 34 and a nut 35. Further, the outer blade 3b has an intermediate blade portion inclined in the axial direction of the drive shaft 2 to form an inclined blade portion 6b, and a tip portion thereof is further bent along the outer platen 5, and the end portion thereof is retained. It is inserted into the gold 36 and attached to the outside of the outer panel 5 with bolts 37 and nuts 38.

  As shown in the side view of FIG. 5, the blade blade 3 is attached to the ground with an intrusion angle θ, and the blade blade 3 is at an acute angle with respect to the ground. I am trying to be driven in. This makes it easier to cut the ground.

  The cutting edges of the inner blade 3a and the outer blade 3b are formed on all the portions except the insertion portion of the clasps 33 and 36, and the weed cutting width is maximized. This also reduces the entanglement of weeds.

Further, the inner blade 3a is a single-edged blade whose outer side is inclined, and the outer blade 3b is a single-edged blade whose inner side is inclined so that the blade tip has no gap at the overlapping portion of both blades 3a and 3b. (See Figure 7)
In the intercostal weeding device 12 configured as described above, as shown in FIG. 3, for example, the main blade portion 6a of the blade blade 3 is positioned in the groove portion UM of the ridge U in which a crop S such as soybean is planted, The blade blades 3, 3,... Are rotated around the drive shaft 2 in the down cut direction (the direction of arrow A in FIG. 2) with the outer plate body 5 positioned on the slope portion of the flange U.

  Then, the weeds are cut and crushed while being scraped downward by the blade blade 3, or the slope portion and bottom portion of the ridge U are shallowly cut by the main blade portion 6a and the inclined blade portion 6b, and remain on the slope portion. Weeds and soil are raked inside and cut and crushed. Further, the weeds that grow on the upper surface of the ridge U and lie in the ridge groove are also cut by the inclined blade portion 6b.

  On the outside of the blade blade 3, weeds entering the drive shaft 2 side can be prevented by the inclined blade portion 6 b that cuts and the planar outer plate body 5, and entanglement can be reduced, so that weeding work can be continued without interruption. Can be done.

  The weed on the lower ground of the transmission case 1 where the blade blade 3 of the weeding machine 14 does not act is scraped off by the groove plate 9 as the riding management machine 10 travels, or the weed is moved to the rotational range of the blade blade 3 of the weeding machine 14. It will be pushed down and cut.

  The weeding machine 14 rotates the rotational speed of the drive shaft 2 at a speed higher than the speed of the riding management machine 10, more specifically the rotational speed of the front and rear wheels, and the rotational diameter is larger than the height of the weeds. Set a large diameter.

The side view of the whole passenger management machine. The side view of a weed weeding device. A back sectional view showing a working state of a weed weeding apparatus. FIG. 3 is a partially enlarged cross-sectional view of the furrow weeding apparatus. The partial side view of a weed weeding apparatus. The partially expanded top view of a weeding weeding apparatus. The partially expanded side view of a furrow weeding apparatus.

DESCRIPTION OF SYMBOLS 1 Transmission case 2 Drive shaft 3 Blade blade 3a Inner blade 3b Outer blade
4 inner body
5 outer plate body 6a main blade portion 6b inclined blade portion
14,14 Left and right weeder

Claims (2)

The left and right weeders (14, 14) are attached to the left and right sides of the drive shaft (2), (2) projecting in the left-right direction at the bottom of the transmission case (1) that houses the transmission mechanism. The weeder (14) has a large-diameter inner board (4) close to the drive shaft and a small-diameter outer board (5) far from the drive shaft, and the right weeder (14) has a drive shaft. A blade blade having a main blade portion (6a) in which the blade tip rotates concentrically with respect to the center of rotation (5). 3) is provided over a large-diameter inner board (4) close to the drive shaft provided on each of the left and right weeders (14, 14) and a small-diameter outer board (5) far from the drive shaft. blade edge (3) furrow herbicidal instrumentation for cutting the outer end portion is form form an inclined blade portion close enough outside to the rotation center side (6b) of . Blade blade (3) provided over a large-diameter inner board (4) close to the drive shaft provided in each of the left and right weeders (14, 14) and a small-diameter outer board (5) far from the drive shaft. Is composed of two members, an inner blade (3a) and an outer blade (3b), and the center portion of the inner blade (3a) and the outer blade (3b) is slidably fixed and has a large diameter close to the drive shaft. 2. The intercostal weeding device according to claim 1, wherein a distance between the inner board body (4) and the outer board body (5) having a small diameter far from the drive shaft can be changed.

Images