JPS5849042Y2 - Dual-use multiple plow - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to dual-use multi-row.

There are times when you want to plow the edge of a bank using dual-use multiple plowing, or you may want to use dual-use plowing as single plowing depending on the field conditions.

In such a case, the deflection reversal of the dual-use multiple
When the suspension is of the type that is automatically performed in response to the vertical movement of the point suspension, it is necessary to suppress the automatic reversal of deflection.

The present invention possesses the automatic deflection reversal function of such a dual-use multiplex, and also suppresses that function as necessary so that it can be used easily and reliably as a single-use multiplex. This is what I did.

Next, an embodiment of the present invention shown in the accompanying drawings will be described.

Reference numeral 1 denotes a connecting frame, and this connecting frame 1 has a mast 4 having a pin through hole 3 erected on an upper frame portion 2a of a channel-shaped base frame 2, and a supporting shaft 5 is connected to the upper part of the mast 4. It is formed by attaching a bell-crank-shaped operating metal fitting 6 so as to be rotatable in the vertical direction, and by protruding pitch bars 8 from both sides of the lower part of the upper frame portion 2b of the base frame 2 via a support frame 7.

Further, a connecting pin 9 is connected between the upper and lower side frame portions 2as2b of the base frame 2 of the connecting frame 1, and both side arms 10a and 1 as a machine frame are connected to each other.
The front end of 0b is rotatably supported in the horizontal direction, and
This both side arms 10a.

A main frame 13 serving as a machine frame is attached to the rear end of 10b via a connecting pin 11 and a main shaft 12 so as to be rotatable in the horizontal direction.

This main frame 13 is provided with upper and lower frame parts 13a, 13b and a middle frame part 13c, and a plywood part 14 is provided protrudingly from the front part of one side of the upper frame part 13a. A rod 15 is provided upright, and a frame portion 16 is provided at the rear of one side of the upper frame portion 13a, and the stopper piece 11 is supported on the frame portion 16 by a shaft 18 so as to be rotatable in the front and rear directions. death,
Projecting pieces 19 and 20 are provided on both sides of the upper part of this stopper piece 17, and the stopper piece 17 and the above-mentioned attachment are attached to the frame part 16.
It is formed by stretching a pressure spring 21 between the
The upper frame part 13a and the middle frame part 13c in this main frame 13
The rear ends of the both arms 10a, 10b are located between the shaft rod 15 and the stopper piece 17.
They are arranged in front and behind the main shaft 12, respectively.

Reference numeral 22 denotes a main shaft metal fitting formed in a substantially fan-shape.The main shaft 12 is firmly fixed to and vertically attached to the main frame 13 and the one side arm 10b, and the rear part of the main shaft metal fitting 22 is attached to the main shaft metal fitting 22. An arcuate long guide hole 23 having the main shaft 12 as its center is bored, and engaging recesses 24 and 25 are connected to each other at the rear of both ends of the long guide hole 23. Locking pieces 26 and 27 are integrally provided upright at both ends of the spindle fitting 22, located on the sides of the spindle fitting 25.

Further, a spring hook at the front end of the main shaft metal fitting 22 supports the rear end of the metal fitting 28 through a shaft 29 so as to be rotatable in the horizontal direction. Main frame 1 above
3, loosely fit the shaft rod 15 on the base plate portion 14.

Reference numeral 31 designates a floating metal fitting, which is pivotally supported on the upper protrusion of the main shaft 12 of the main shaft metal fitting 22 so as to be rotatable in the horizontal direction. At the same time, a bow tension spring 33 is stretched between the rear end of the stopper pusher 32 and the rear end of the floating bracket 31, and the tension spring 33
The stopper pusher 32 is held in position by this.

Further, the main shaft fitting 22 is rotated to one side of the reference position When engaged with the locking piece 26 and deviated by a predetermined angle α from the reference position y, there is no tension between the front end of the floating bracket 31 and the pin at the front end of the spring hook 28. The tension spring 34 causes the main shaft fitting 2 to move in the direction in which the floating fitting 31 is deflected.
Set 2 to rotate.

Further, the upper part of the protruding rod 36 fixed to the stopper pusher fitting 32 is loosely fitted into the elongated hole 35 formed in the longitudinal direction of the floating fitting 31 so as to be freely movable back and forth. The rear end of the connecting rod 31 is rotatably connected via the universal joint 36a, and the front end of the connecting rod 37 is freely connected to the rear end of the actuating fitting 6 which is rotatably mounted on the mast 4. The outer end of a coil spring 68 connected to a chain 67 serving as a tension rope is detachably connected to the front end of the operating fitting 6, and the outer end of the coil spring 68 is connected to the front end of the operating fitting 6 via a joint 6a. The end portion is locked to a locking portion 73 protruding from the rear of the tractor 70.

Further, a parallelogram-shaped variable frame 38 is attached to the main frame 13 so as to be horizontally rotatable and located between the lower frame portion 13b and the middle frame portion 13C of the main frame 13.

This variable frame 38 is provided with both side frames 39 and 40, and the front frame 4 as a horizontal frame is connected between the front part, the middle part, and the rear part of the both side frames 39 and 40 through link pins 41, respectively.
2, an intermediate frame 43 serving as a horizontal frame, and a rear frame 44 serving as a horizontal frame are pivoted so as to be horizontally rotatable. ) are formed by arranging shaft through holes 45°46.47 as shaft supports which are cylindrical in shape.

And the above-mentioned both side frames 39.40 in this variable frame 38
are the lower frame portion 13b and the middle frame portion 13 in the main frame 13.
c and both side frames 39.4 in this state.
The connecting pin 11 and the main shaft 12 are inserted into the pair of shaft through holes 47 of 0, and in this case, the main shaft 12 is fixed to the one side frame 40 via the key 12a, and the connecting pin 11 is fixed to the other side frame 40. 39 so as to be rotatable.

Further, holders 48 and 49 are attached to the lower portions of the front frame 42 and the intermediate frame 43, respectively, and a front umbrella 50 as a dual-use umbrella and an intermediate umbrella as a dual-use umbrella are attached to the holders 48 and 49, respectively. The body 51 is attached removably and vertically adjustable by fixing pins 52, and a rear umbrella body 53 as a dual-purpose umbrella body is fixed to the lower part of the rear frame 44.

Each of these umbrella bodies 50, 51, 53 has an inclined shaft 56 rotatably fitted to the lower end of the beam 54 via a shaft tube 55, and a tip 57 and a spatula 58 attached to the front of the inclined shaft 56. At the same time, a reversing rod 59 is attached to the rear part of the tilting shaft 56,
Further, it is formed by attaching a fertile bed 60 to the lower part of the beam 54.

Then, a shaft 1 rod 61 is provided projecting at the rear of the holder 48, 49 and at the rear of the upper part of the beam 54 of the rear umbrella body 53, and a guide tube 62 is rotatably fitted to the shaft rod 61, An operating rod 63 is attached to the lower part of the guide cylinder 62, and the lower end of the operating rod 63 is loosely fitted to the upper part of the reversing rod 59.
4 is provided protrudingly, and this interlocking rod 64 is loosely fitted into a retaining ring 65 provided protrudingly from the lower part of the side frame 40.

In FIG. 1, reference numeral 66 denotes a fixing pin, and this fixing pin 66 is detachably engaged with the negative side arm 10b from the upper frame portion 2a of the base frame 2. When removed, the arms 10a*10b on both sides can be rotated laterally using the connecting pin 9 as a fulcrum, thereby making it possible to deviate the entire variable frame 38 in the left-right direction. However, in this embodiment, the fixing pin 66 is not removed, that is, both arms 10
It is assumed that a and 10b are used in a fixed state.

In addition, the reference numeral 69 in the figure represents a preliminary hook protruding from the upper part of the mast 4.

In such a configuration, the hitch bar 8 is connected to the lower ring 71 as a three-point suspension mechanism of the tractor 70, and the mast 4 is connected to the top ring 72 as a three-point suspension mechanism via a pin (not shown). Also,
The chain 6 is attached to a locking portion 73 protruding from the rear of the tractor 70.
The outer end of the coil spring 68 at the other end of the chain 67 is removably engaged with the front part of the actuation fitting 6.

In addition, the umbrella bodies 50, 51, 53 connected to the connecting frame 1 via the arms 10a, 10b on both sides and the variable frame 38 are deflected to either the left or right side in the direction of movement, as shown in FIGS. 3 and 4. Then set the tractor 7 in the reverse position.
Kusamochi is performed while being towed by 0.

First, as shown in FIG. 3, each umbrella body 50.51
, 53 is assumed to be the case where the pregnancy is performed in the right-inverted state.

In this case, the main frame 13, which is rotatably connected to the connecting frame 1 via the connecting pin 11 and the main shaft 12, has each umbrella body 50°51. As shown in b, the main shaft fitting 22 is locked by a stopper piece 17 attached to the main frame 13 being engaged in an engagement recess 24 connected to one end of the guide elongated hole 23.
The floating metal fitting 31 performs the fertilization operation in a state in which it is in contact with the locking piece 26 on the engagement recess 24 side with the main shaft 12 as a fulcrum due to the tensioning action of the tension spring 34.

Next, when the tractor is turned and the umbrella bodies 50, 51, and 53 are reversed to the left in the traveling direction as shown in FIG. 4, when the three-point suspension mechanism of the tractor is raised, as shown in FIG.
As shown in the figure, the connecting frame 1 is lifted and the main frame 9 is equipped with umbrella bodies 50, 5L53 attached to the connecting frame 1 via both side arms 10a, 10b and the variable frame 38.
can also be lifted.

At the same time, the operating fitting 6 is pulled by a chain 67 having a coil spring 68 and rotates counterclockwise in FIG. A protruding rod 36 rotatably connected to the elongated hole 35 is pulled forward in the elongated hole 35, and a stopper pusher 32 fixed to the lower end of the protruding rod 36 engages the tension spring 3.
This stopper pusher 32 is pulled forward against 4.
Pushes the driven piece 19 of the stopper piece 17 forward against the tension spring 21 at the tip thereof, and causes the stopper piece 17 to escape from the engagement recess 24 of the guide elongated hole 23 of the main shaft fitting 22.

In addition, since the floating metal fitting 31, which is energized by the action of the spring hook metal fitting 28 and the bow tension spring 34, is in a state deviated from the reference position X by a predetermined angle α as described above, the connecting rod 37, the main shaft 12 is automatically rotated in the left direction in the figure as shown in FIG. Rotates in conjunction with the direction of power.

Further, due to this rotation of the main shaft fitting 220, the stopper piece 17 is positioned in front of the engagement recess 25 at the other end of the guide elongated hole 23, and is pulled by the return force of the tension spring 21 and engaged in the engagement recess 25. This stopper piece 17
The main shaft fitting 22 is locked to the main frame 13 by this.

Each umbrella body 5 is connected to the main shaft 12 integral with the main shaft fitting 22 via a variable frame 28 by the rotation of the main shaft fitting 22.
0, 51, and 53 are sequentially reversed to the left, that is, the front umbrella body 50 provided via the main shaft 12 and variable frame 38 is to the left in the plowing direction, and the rear umbrella body 53 is to the left in the plowing direction. At the same time, the intermediate green body 51 is slightly displaced to the left in the Kusamochi direction, and each umbrella body 50, 51, 53
They are each fixed and held at a predetermined position in a state inverted to the left in the fertilization direction.

Therefore, as shown in FIG.
3 is automatically reversed and set to the left in the direction of travel.

Next, as described above, the direction of the tractor is changed while lifting each umbrella body 50, 51, 53, and when the three-point suspension mechanism of the tractor is lowered in preparation for re-ploughing, the connecting frame is opened as shown in FIG. 7a. 1 and the main frame 13 are lowered, and each of the green bodies 5, 0, 51, 53 connected thereto via the variable frame 38 descends and lands, and the operating metal fitting 6 is rotated by the return force of the coil spring 68 of the chain 67. This operating metal fitting 6
The linking rod 37 connected to is interlocked.

In addition, as shown in FIG. 7, the floating bracket 31 automatically rotates around the main shaft 12 from the left position in the figure to the right position shown by the solid line due to the action of the bracket 28 and the tension spring 34. Then, it comes into contact with the locking piece 27 at the other end of the main spindle fitting 22, in preparation for the next direction change.

In this case, the protruding rod 36 is not interlocked by the connecting rod 37, the stopper pusher 32 is not moved toward the stopper piece 17 against the tension spring 33, and the stopper piece 17 is positioned within the engagement recess 25. Retained.

Then, re-plowing is performed by each umbrella body 50, 51, 53 which has changed direction and been reversed and lowered by being towed by a tractor.

Next, when changing direction to the outward route again at the terminal point of the return route, when the connecting frame 1 is lifted in the same manner as above, the chain 67 having the both-side arms 10atlOb, the main frame 13, the connecting rod 37, and the coil spring 68, The main shaft fitting 22, floating fitting 31, etc. operate in the same manner as described above, and each umbrella body 50, 51,
53 is automatically switched and reversed to prepare for impregnation on the outward journey.

In this way, the displacement of each umbrella body 50, 5L53 can be automatically reversed in conjunction with the raising and lowering operation of the three-point suspension mechanism of the tractor.

Next, when each of the above-mentioned umbrella bodies 50, 5L53 is used for a single purpose, that is, the umbrella bodies so and si.

53, the coil spring 68 is uncoupled from the front end of the actuation fitting 6.
Coil spring 68 is engaged with reserve hook 69.

As a result, even if the lower ring 71 and top link 72 as a three-point suspension mechanism of the tractor 70 are raised, no tension is exerted by the chain 67.
The actuating metal fitting 6 is held in a fixed state without rotating, and therefore the stopper pushing metal fitting 32 is not moved forward by the connecting rod 37, so the umbrella bodies 50, 51, and 53 are held in a single-use state without being reversed. be done.

FIG. 8 shows a means for fixing the actuating fitting 6 according to another embodiment, and in order to hold the actuating fitting 6 in a fixed state, a pin hole 4a drilled in the mast 4 and a pin hole 4a bored in the actuating fitting 6 are used. The two pin through holes 4a are aligned with the pin through holes 6b.
, 4b by inserting the fixing pin 74, and thereby the umbrella body 50, 51, 53 is held in a single-use state.

According to the present invention, the deflection reversal of a dual-use multi-pear that is towed by being connected to a three-point suspension mechanism of a tractor is automatically and smoothly performed in conjunction with the vertical movement of the three-point suspension mechanism. In this case, the stopper piece rotatably attached to the machine frame is provided to protrude so as to selectively engage and disengage into the engagement recess in the guide elongated hole of the spindle metal fitting, so there is no possibility of failure of the stopper pusher metal fitting. In conjunction with the operation, the set deflection reversal position of the expropriation umbrella can be reliably maintained by the switching operation of the stopper piece, and even when multiple expropriation umbrellas are connected, each expropriation can be The canopy body can be reliably deflected and reversed in the same direction.

In addition, the rear end of the tension cable whose front end was connected to the lower part of the tractor body was removably connected to the front end of the operating fitting, so by separating this tension cable from the operating fitting, the expropriation umbrella The automatic deflection reversal function can be easily and reliably suppressed, and as a result, it can be easily converted into a single-use pear for use, and therefore has the mechanism of an expropriation multiple-series falcon with a simple structure. However, it can also be used as a single use, providing a highly versatile multi-use use.

[Brief explanation of drawings]

The figures show one embodiment of the present invention. Figure 1 is a side view of the expropriation multiplex, Figure 2 is an exploded perspective view of a part of it, and Figures 3 and 4 explain the overall operation. Plan view, Figure 5a,
Figures b to 7 a and b illustrate the functions of the respective main parts, in which a is a side view thereof, b is a plan view thereof, and FIG. 8 is a side view of a part according to another embodiment. 1... Connection frame, 6... Operating metal fittings, 6a
, 36a... Universal joint, 10a, 10b...
...Both arms as a machine frame, 12...Main shaft, 13...Main frame as a machine frame, 17...
・Stopper piece, 21... Coil spring, 22...
...Main shaft fitting, 23...Guide slot, 24
, 25... Engagement recess, 31... Idle fitting, 32... Stopper push fitting, 37...
...Continuous rod, 38...Variable frame, 39,40...
...Both side frames, 40...-Side frames, 42, 43
, 44...Front frame, intermediate frame and rear frame as horizontal frames, 50,5L53...Front frame, intermediate umbrella and rear umbrella as expropriation umbrellas, 67. 68...
... Chain as tension rope and coil spring, 70 ... Tractor, 71, 72 ...
Lower link and top link as a three-point suspension mechanism.

Claims (1)

[Scope of utility model registration request] A machine frame connected to the three-point suspension mechanism of the tractor via a connecting frame, a main shaft vertically rotatably attached to the rear of the machine frame, and a main shaft fixed to the upper part of the main shaft and arranged around the center of a circle at the rear. A horizontally rotatable main shaft metal fitting is formed with an arc-shaped guide elongated hole and engagement recesses are formed at the rear of both ends of the guide elongated hole, and a frame on one side of the main shaft to which this main spindle metal fitting is fixed. A parallelogram-shaped variable frame in which both side frames are horizontally rotatably supported with respect to the machine frame in a fixed state, and a horizontal frame is pivoted between the both side frames; A plurality of dual-use housings are attached to the frame and reverse the deflection in response to the rotational deflection of the variable frame, and the above-mentioned main shaft is rotatably supported on the upper part of the main shaft to interlock the main shaft metal fittings and constantly - The idler fitting, which is biased and rotationally biased, is pivotally supported by the machine frame so as to be rotatable in the longitudinal direction, and is protruded into and engaged with the guide elongated hole formed in the main shaft fitting. a stopper piece that selectively engages and disengages within the concave portion to fix rotation of the main shaft fitting; and a stopper piece that is provided in the movable fitting so as to be movable forward and backward;
A stopper push fitting 33 that releases the engagement of the stopper piece engaged with one of the engagement recesses of the spindle fitting in conjunction with the vertical movement of the connection frame by the point suspension mechanism; an actuating fitting whose front end is rotatably and fixably supported by a shaft; a front end is connected to the rear of the actuating fitting via a universal joint; and a rear end is connected to the stopper push fitting via a universal joint; and a tension cable, the front end of which is connected to the lower part of the main body of the tractor, and the rear end of which is detachably connected to the front part of the operating fitting. A double-use multi-row machine featuring the following.