JPH0244677Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is an agricultural wide spreader for spraying fertilizers, pesticides, etc., in which the shutter along the bottom of the hopper is equally divided into multiple parts, and the divided shutters and the front crosspiece of the underframe are A parallelogram-shaped link mechanism was constructed by connecting the operating rods along the arm with an arm, and the connecting piece that linked to the operating lever was welded to one arm, and the pin connecting the arm and the operating rod was made to be freely inserted and removed. By removing this pin and letting the arm play, the shutter could be stopped in the closed or open position, making it easy to adjust the width of the fertilizer or pesticide sprayed from the bottom of the wide hopper. .

In the embodiment shown in the drawings, 1 is a hopper with a considerable width, the upper surface of which is covered with a cover plate 2, connected to the hinge so that it can be opened and closed freely, and the front and rear sides 3 and 4 are inclined into a downward concavity to form an arc-shaped hopper. Continuous to the bottom surface 5. The hopper 1 has long and short angle beams 6 and 7 attached vertically to the center of the front side, end pieces 8 and 8 having round holes 9 welded to the center of the upper beam 6, and two support columns. 10, 10 along the front side 3 and the beam 6,
A pin 12 is installed at the lower front corner of trapezoidal support plates 11, 11 connected to the support plate 7 and protruding from the lower part of each support.
This hopper connects pins 12 of two support plates to two lower links (not shown) coming out of the tractor, and also connects one upper link (not shown).
are connected to the round holes 9 in the end pieces, and the hopper 1 is supported at the rear and upper side of the tractor by these end pieces 8, 8 and the two support plates 11, 11 via a three-point link.

13 is a rectangular underframe on which hopper 1 is placed;
Four groove-shaped beams are framed to have a width approximately 1/3 of the width of the hopper 1, and the above-mentioned supports 10,
When the straight lower end of the hopper 10 and the two leg pieces 14 protruding from the rear side 4 of the hopper are attached, and the hopper 1 is removed from the tractor, the underframe 13
on the ground to support the hopper in a horizontal position. 15 is a gear box attached to the center of the bottom of the hopper 1, which houses a worm and a worm wheel (both not shown) that meshes with the worm.The worm is attached to a drive shaft 16 that enters from the front, and driven shafts that exit from both sides ( Attach a worm wheel to the drive shaft 16 (not shown) and
is connected to the tractor's power take-off shaft (not shown) to slow down and rotate the driven shaft. 17 is a stirring impeller provided at the bottom of the hopper 1, which consists of a large number of blades 18 arranged at a constant pitch and a core shaft 19 to which these blades are attached, and the inner end of the core shaft is connected to the driven shaft coming out of the gear box 15. Then, the blades 18 are rotated at the bottom of the hopper 1 to stir the fertilizer.

A large number of rectangular outlets 20 are formed at a certain pitch along the entire length of the bottom surface 5 of the hopper, and long shutters along the bottom surface are connected to the central portion 21 and both side portions 2.
The shutter is divided equally into three parts, 2 and 23, and each shutter is fitted into a guide 24 attached to the bottom of the hopper and held so as to be freely slidable in the longitudinal direction. 25... is a large number of outlets drilled in each shutter, consisting of a triangular hole 26 and a strip hole 27, and the total number and pitch of these outlets are made equal to the outlet 20 of the hopper, and the strip holes 27 and the outlet 20 of the hopper are approximately the same. Make it to size. 3
0 is an operating lever along the front of the center left part of the hopper 1, and the metal 28 attached to the bent part near the lower end is loosely fitted into the pin 29 planted on the left side of the two support plates 11, 11. By holding the grip 31 and moving the operating lever 30 back and forth, the shutter 21~
23 is opened and closed. Reference numeral 32 denotes a groove-shaped holder having a scale plate 33, which is protruded from the center left part of the beam 6 so as to face forward and downward, through which the operating lever 30 is passed and fixed at a desired position by a stopper 34.

35 is a round rod-shaped relay rod, whose front end is bent to the side and fitted into the round hole at the lower end of the operating lever 30, extended horizontally to the rear, and the rear end is bent downward, so that the bent end can be placed in an inclined position. Fit into the round hole at the top of the connecting piece 36. Reference numeral 37 indicates three support pieces that form the shape of the underframe 13.
The intermediate parts of the arms 41 to 43 extending in the front and back direction are stacked on the upper part of each support piece and pivoted with pins 38, 39, and 39, and each arm is Shutter 2 whose rear end is divided into three by pin 40
1 to 23, and a continuous joint piece 36 is welded to the side edge of the central arm 41 to connect them together. Reference numeral 44 denotes an operating rod that runs along the front crosspiece of the underframe 13, and has a connecting fitting 45 with a flat square cross section in the center, connecting fittings 46 and 47 with a flat square cross section on both ends, and a turnbuckle 48 in the middle. , 48, the total length can be adjusted. Here, the front end of the central arm 41 is inserted into the connecting fitting 45 and connected with a headed pin 51, and the arms 42 and 43 on both sides have their respective front ends inserted into the connecting fitting 4.
Headed pins 52, 5 that can be inserted and removed freely by inserting them into 6, 47
3, and play holes 54 and 55 for inserting pins are opened in these metal fittings 46 and 47.

One embodiment of the present invention has the above-mentioned configuration. When the tractor is driven, the power is transmitted to the drive shaft 16, which is decelerated by the gear box 15 to rotate the impeller 17, and the blades 18... Stir the fertilizer and spread the fertilizer from each outlet 20 on the bottom.

When the operating lever 30 is moved back and forth prior to driving the tractor, the relay rod 35 moves forward and backward as shown by arrow A along with the top end of the continuous joint piece 36, and the continuous joint piece pins the integrally connected central arm 41. It is rotated as shown by arrow B using 38 as a fulcrum. As the central arm rotates, the central shutter 21 moves left and right along the bottom surface 5 of the hopper, and the operating rod 44 also moves left and right along with the central arm. Operating rod 44
moves, the arms 42, 43 at both ends connected to both ends rotate about the pins 39, 39 as fulcrums, and this rotation causes the shutters 22, 2 on both sides to rotate.
3 also moves left and right along the bottom surface 5 of the hopper.
When the operating lever 30 is fully pressed against the rear end of the holder 32, the arms 41 and 42
As shown in 3, take a posture with the rear end tilted to the right,
The shutters 21 to 23 along the bottom of the hopper are offset by more than the width of the hopper outlet 20, and all the shutter outlets 25... are completely separated from all the hopper outlets 20... 21 to 23 are in a state where all the outlets 20 of the hopper 1 are completely closed.

When the operating lever 30 is pulled toward the front in this state, the relay rod 35 moves toward the front together with the top end of the continuous joint piece 36, and the continuous joint piece rotates counterclockwise using the central arm 41 as a fulcrum about the pin 38. let Due to the rotation of the central arm, the central shutter 21 moves to the left to align the outlet 25 with the hopper outlet 20, and the operating rod 44 moves to the right to engage the arms 4 at both ends.
2, 43 is rotated, and the shutters 22, 23 on both sides are also moved to the left to align the outlet 25 of each shutter with the outlet 20 of the hopper.
As a result, as shown in FIG. be dispersed.

Since the shutters 21 to 23 align the outlet triangular holes 26 with the hopper outlets 20 at the beginning of their movement, each hopper outlet 20 opens slightly, and as the amount of movement of the shutters 21 to 23 increases, the hopper The opening degree of the outlet 20... gradually increases, and when the operating lever 30 passes the middle of the holder 32, the strip hole 27... at the outlet of the shutter matches the outlet 20... of the hopper.
The opening degree of 0... gradually increases, and the operating lever 30
When pressed against the front end of the holder 32, the strip hole 27 at the shutter outlet is completely aligned with the hopper outlet 20, and the hopper outlet is fully opened. In this way, the degree of opening of the outlet 20 of the hopper is adjusted by pulling the operating lever 30, and since the triangular hole 26 is provided at the outlet of the shutter, the outlet 20...
The opening degree can be adjusted minutely.

In the state shown in FIG. 5 with all shutters 21 to 23 closed, the pin 53 at the right end of the operating rod is removed, and this pin is inserted into the play hole 55 of the right end connecting fitting to allow the right end arm 42 to play. When the operating lever 30 is pulled toward you in this state, the relay rod 35 moves forward together with the top end of the continuous joint piece 36, and the continuous joint piece rotates counterclockwise around the central arm 41 about the pin 38. make it move. As the central arm rotates, the central shutter 21 moves to the left and exits 25.
... to the outlet 20... of the hopper, and turn the operating rod 44.
also moves to the right and rotates the left end arm 42,
Along with this, the shutter 22 on the left side moves to the left to align the exits 25 with the exits 20 of the hopper. As a result, as shown in Fig. 5, the central shutter 21 and the left shutter 22 open the hopper outlet 20, and the fertilizer placed in the hopper is dispersed onto the ground from the center and left side of the bottom. Ru. Note that the arm 42 on the right side is left idle by removing the pin 53, so the shutter 23 on the right side
does not move from the state in which the outlet 20 of the hopper is fully closed.

With the central shutter 21 and the left shutter 22 open as shown in Fig. 5, remove the pin 52 at the left end of the operating rod, insert this pin into the play hole 54 of the left end connecting fitting, and remove the left end arm 42. Let them play. In this state, when the operating lever 30 is fully returned to the rear and the relay rod 35 is retreated, the connecting piece 36 tilts the central arm 41 to the right, so the central shutter 21 moves to the right, and the outlet 25... is shifted from the hopper outlet 20, so only the left shutter 22 is open, as shown in Fig. 5, and the fertilizer placed in the hopper reaches the ground only from the left side of the bottom 5. be scattered.

In addition, the fifth shutter with all shutters 21 to 23 closed
Pins 52, 5 at both ends of the operating rod in the state shown in the figure.
3 and pull the operating lever 30 toward you with the arms 42 and 43 at both ends loose, only the center shutter 21 will be open to the hopper outlet 20, as shown in FIG. The fertilizer is spread onto the ground only from the center of the bottom surface 5. Next, when all the shutters 21 to 23 have opened the hopper exits as shown in Fig. 5, the rightmost pin 5
3 and push the operating lever 30 to the rear with the right arm 43 loose, the central shutter 21 and left shutter 22 close the hopper outlet 20, as shown in FIG. Since only the bottom shutter is open, the fertilizer placed in hopper 1 is spread onto the ground only from the right side of the bottom. In addition, in the state shown in FIG. 5, if the pin 52 at the left end of the operating rod is removed and the operating lever 30 is pulled toward you with the arm 42 at the left end left idle, the fifth
As shown in the figure, only the shutter 22 on the left side is closed, and the shutter 21 on the center and the shutter 23 on the right side are open, and the fertilizer put in the hopper 1 is scattered on the ground from the center and right side of the bottom 5. be done.

The above describes one embodiment of the present invention, and the present invention is not limited to this embodiment, and the design can be changed within the gist of the invention. For example, depending on the width of the hopper, the shutter along the bottom surface 5 may be changed. The support piece 37 and the arms 41 to 4 may be divided into two equal parts or four or more equal parts, depending on the number of equal parts of the shutter.
3. The number of connecting fittings 45 to 47 will increase or decrease.

According to the present invention, in an agricultural wide spreader that spreads fertilizers, pesticides, etc., the shutter along the bottom of the hopper is divided into multiple equal parts, and the divided shutter and operating rod along the front crosspiece of the underframe are connected to the arm. A parallelogram-shaped link mechanism was constructed by connecting the joints to form a parallelogram link mechanism, and the connecting piece that interlocked with the operating lever was welded to one arm.The pin connecting the arm and the operating rod was made to be freely inserted and removed. By pulling it out and letting the arm play, the shutter will stop at the closed or open position, which has the effect of easily adjusting the width of the fertilizer or pesticide sprayed from the bottom of the wide hopper. This is particularly suitable when spraying the entire width and then spraying the blank area in the middle.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a partially cutaway side view of the hopper, Fig. 2 is a front view of the hopper, and Fig. 3 is an enlarged plan view of the main parts of the embodiment. , FIG. 4 is an enlarged sectional view of the right end of the operating rod, and FIG. 5 is an explanatory view showing the shutter in the open and closed state. In addition, 1 is a hopper, 5 is its bottom, 13 is an underframe, 20 is an outlet of the hopper, 21 to 23 are shutters, 25 is an outlet thereof, 30 is an operating lever, and 36
37 is a support piece, 41 to 43 are arms,
44 is an operating rod, and 51 to 53 are pins.

Claims (1)

[Scope of utility model registration request] A large number of outlets are drilled at equal intervals on the bottom of a wide hopper mounted on an underframe, and a long shutter, which is attached to the bottom of the hopper and can be slid freely, is equally divided into multiple parts, and a hopper is attached to each shutter. The same number of outlets are bored at the same pitch, and the middle part of the arm extending back and forth is pivotally connected to a plurality of support pieces planted on the front crosspiece of the underframe. Each arm was connected to the divided shutter and the operating rod along the front crosspiece of the underframe to form a parallelogram link mechanism, and the pin connecting the arm and operating rod was made to be freely inserted and removed. An agricultural wide spreader characterized by: