JPS586241Y2 - Automatic reversing double plow - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automatic reversing dual-purpose Hayabusa, which automatically reverses the deflection of the dual-purpose green body that is connected to the suspension mechanism of a tractor and is towed in conjunction with the lifting and lowering movements of the suspension mechanism. In addition, the automatic deflection reversal operation of the dual-use container can be suppressed as necessary.

Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a set metal fitting that is connected to a tractor (not shown), and this set metal fitting 1 has a bar through hole 3 formed at the lower end of a bifurcated lower side frame portion 2 facing each other, and a bar through hole 3 is bored in the lower end of the lower side frame portion 2 of the lower side frame portion. Pin through holes 4 and 5 are formed facing each other in the middle of the rear part 2, and a narrow upper both side frame part 6 is integrally erected at the upper part of this lower both side frame part 2, and this upper both side frame part A pin through hole 7 is formed in the middle of each frame 6 so as to face each other, and a frame body 8 is pivotally supported between the upper end portions of the upper and both side frame portions 6 so as to be rotatable in the vertical direction.

Further, 9 is a main frame, and this main frame 9 has bar through holes 11 at the lower ends of the bifurcated front side frame portions 10 that communicate with the bar through holes 3.
and pin through holes 12 are formed facing each other, and an arc-shaped elongated hole 13 with the bar through hole 11 as the center of the circle is formed at the rear of the bar through hole 11. 1
Three-pronged upper, middle, and lower step frame portions 14, 15, and 16 are arranged in series at the rear end of the 0, and a through hole 17 that passes through the upper, middle, and lower step frame portions in the vertical direction is bored through these upper, middle, and lower step frame portions 14, 15, and 16. With,
The lower end of the stopper piece 18 is attached to the upper part of the upper frame part 14 on the horizontal axis 1.
A tension spring 20 is provided between the stopper piece 18 and the protrusion at the rear end of the upper frame portion 14 to bias the stopper piece 18 rearward. There is.

A mounting shaft 21 is inserted into the front end of the main frame 9 through the respective bar passage holes 11 and 3 which are engaged with the lower side frame parts 2 of the set metal fitting 1 and communicate with each other. 21 is prevented from being removed by a stopper, so that the main frame 9 is attached to the set metal fitting 1 so as to be rotatable in the vertical direction around the mounting shaft 21, and the pin holes of the set metal fitting 1 that communicate with each other are attached. A locking pin 22 is inserted through the hole 5 and the elongated hole 13 of the main frame 9, and the vertical rotation of the main frame 9 is controlled through the locking pin 22 within the range of the elongated hole 13. ing.

Further, reference numeral 23 denotes a main shaft metal fitting having a substantially fan-like shape.A main shaft 24 rotatably inserted into the through hole 17 of the main frame 9 is fixed and vertically mounted on this main shaft metal fitting 23. An arcuate long guide hole 25 with the main shaft 24 as the center is bored in the rear part of the guide hole 25. Engagement recesses 26 and 27 are connected to the rear of both ends of the guide long hole 25. Locking pieces 25a and 25b are integrally erected at both end portions of the spindle fitting 23 at the sides of the recesses 26 and 27.

Further, the spring hook is attached to the front end of the main shaft metal fitting 23, and the rear end of the metal fitting 28 is pivotally supported via a shaft 29 so as to be freely rotatable in the horizontal direction.
This spring hook is formed by a long hole 30 bored in the length direction of the metal fitting 28.
The upper part of a shaft rod 31 bored into the upper part of the main frame 9 is loosely fitted therein so as to be freely rotatable in the horizontal direction.

Reference numeral 32 denotes a floating metal fitting, which is pivotally supported on the upper protrusion of the main shaft 24 of the main shaft metal fitting 23 so as to be rotatable in the horizontal direction. A movable stopper pusher 33 is attached to be able to move back and forth in the front and rear directions, and a tension spring 34 is stretched between the rear end of the stopper pusher 33 and the rear end of the floating bracket 32. 34 holds the stopper pusher 33 in position.

Further, the main shaft metal fitting 23 is rotated to one side of the reference position When engaged with the locking piece 25a at one end of the metal fitting 23 and deviated by a predetermined angle α from the reference position A tension spring 35 is stretched between them, and the floating metal fitting 32 is set to rotate in the direction in which it is deviated by the tension spring 35.

Furthermore, one end of a connecting rod 38 is attached to the upper end of a protruding rod 37 that is loosely fitted back and forth into a long hole 36 formed in the longitudinal direction of the floating metal fitting 32 and fixed to the stopper push metal fitting 33. The piece body 40 as a universal joint connected to the shaft 8a
The other end of the connecting rod 38 is rotatably connected to the block body 8 attached to the end of the set metal fitting 1 by a shaft 8a.

This continuous rod 38 is formed so that its length can be freely adjusted via a turnbuckle 39.

Next, at the rear of the main frame 9, a front rack 41 and a rear section 42 as a dual-use frame are respectively attached to be horizontally rotatable.

The front end 41 has a front end portion of one side arm 44 of both side arms 44 that is connected to the key 2 with respect to the main shaft 24 which is rotatable between the center frame portion 15 and the lower frame portion 16 of the main frame 9.
4a, and the front end of the other arm 44 of the both-side arms 44 is horizontally rotatable with respect to a front shaft 43 located on the side of the main shaft 24 and suspended in parallel. A beam 46 is attached to the rear ends of both arms 44 via a rear shaft 45 so as to be rotatable in the horizontal direction, and a tilt shaft 47 is rotatably attached to the lower end of this beam 46. The front part of the shaft 47 is provided with a drill tip 48 and a tensioning spatula 49, and the rear part of the tilting shaft 47 is formed with a reversing rod 50 attached thereto.

Further, in the rear section 42, front end portions of both side arms 52 are attached to front shafts 51 on both sides provided between the upper frame portion 14 and the middle frame portion 15 of the main frame 9 so as to be horizontally rotatable. The beam 53, the inclined shaft 54, the base point 55,
The pulling spatula 56 and the reversing rod 57, etc.
It is provided and formed in the same manner as in 1.

An intermediate portion of a front falcon reversal handle 58 is pivotally supported by an upwardly protruding portion of a rear shaft 45 on one side of the front furrow 41, and this reversal handle 5
The front part of the reversing handle 58 is supported by a shaft 59 on the one side arm 44, and the rear part of the reversing handle 58 is loosely fitted to the reversing rod 50, and the rear part of the reversing handle 58 is loosely fitted on the beam 53 of the rear part 42. An intermediate portion of the handle 60 is supported by a shaft 61, and a reversal interlocking rod 62 is provided between one side bent end of the reversal handle 60 and one side protrusion of the m arms 44 of the front furrow 41. The hook is supported by a shaft, and the rear part of the reversing handle 60 is loosely fitted into the reversing rod 57.

In FIG. 1, reference numeral 63 indicates a plowing depth adjustment device for the front section 41, and reference numeral 64 indicates a fixing pin for suppressing displacement of the rear section 42. When this fixing pin 64 is removed, the rear The arms 52 on both sides of the section 42 can be rotated laterally via front and rear shafts 51.65, thereby making it possible to deflect the rear section 42 in the left-right direction. In the example, it is assumed that the pin 64 is not removed, that is, the arms 52 on both sides of the rear portion 42 are used in a fixed state.

Next, a locking frame 71 as a locking body having a hook portion 70 at one end is provided inside one side frame portion 10 of the both side frame portions 10 of the main frame 9, and is rotatable by a shaft 72. A tension spring 73 is hooked between the other end of the locking frame 71 and the rear portion of the side frame 10, and a wire is attached to the other end of the locking frame 71. 74 is connected to the rear end, and on the other hand, an engaging frame 75 is provided near the driver's seat of the tractor (not shown), and the operating lever 7 is connected to this engaging frame 75.
The lower end of the operating lever 76 is rotatably supported by a shaft 77, the front end of the wire 74 is connected to the middle part of the operating lever 76, and the upper part of the operating lever 76 is connected to the engaging frame 75. A locking portion 78a that is movably engaged in an engagement groove 78 formed in the upper portion and that engages and disengages the operating lever 76 is connected to the front end of the engagement groove 78.

Furthermore, in the figure, y indicates the center line of the reference position X of the aircraft.

In such a configuration, set metal fittings 1 are attached to lower links on both sides of a three-point suspension mechanism of a tractor (not shown).
At the same time, the upper part of the set metal fitting 1 is connected to the top link above the center of the three-point suspension mechanism of the tractor through a pin inserted through the pin through hole T of the set metal fitting 1. As shown in FIGS. 4a and 4b, the front part 41 and the rear part 42 connected to this set metal fitting 1 are set in an inverted state to either the left or right side in the direction of movement, and the kusamochi is carried out while being towed by a tractor. It is something that can be done.

First, let us assume that the hawk plowing is performed in the left-inverted state shown in FIG. 4a.

In this case, the main frame 9, which is rotatably connected to the set metal fitting 1 via the mounting shaft 21, is pushed forward via the front tensioner 41 and the rear part 42 due to the lowering of the set metal fitting 1, and
As shown in FIG. 5a, the lower end of the arc-shaped elongated hole 13 is engaged with the pin 22 of the set fitting 1, and as shown in FIG. 25
The stopper piece 1B attached to the main frame 9 is engaged and locked in the engagement recess 26 connected to one end, and the floating metal fitting 32 supports the main shaft 24 as a fulcrum by the tension action of the tension spring 35. The locking piece 25 on the engagement recess 26 side
Hayabusa plowing work is performed in a state where it is in contact with a.

Next, when the direction of the tractor is changed and the front rack 41 and the rear section 42 are reversed to the right side in the traveling direction as shown in FIG.
When the three-point suspension mechanism of the tractor is raised with the hook part 70 of the locking frame 71 not locked with the pin 22, the set fitting 1 is lifted as shown in FIG. The main frame 9, which has a front rib 41 and a rear part 42 attached to the lower end of the metal fitting 1, is rotated downward about the mounting shaft 21 due to its own weight, and
The upper end of the elongated hole 13 is locked to the locking pin 22, and a chain of a certain length is rotatably connected to the upper end of the set metal fitting 1 via the piece 8 and the shaft 8a. The rod 38 is rotated downward about the shaft 8a in synchronization with the downward rotation of the main frame 9.

As the connecting rod 38 rotates downward, the protruding rod 37 connected to the rear end of the connecting rod 38 is pulled forward in the elongated hole 36, and the stopper pusher 33 fixed to the lower end of the protruding rod 37 is pulled forward. is pulled forward against the tension spring 34 , and the tip of this stopper pusher 33 pushes the stopper piece 18 forward against the tension spring 20 , causing the stopper piece 18 to be pulled forward against the guide length of the main shaft metal fitting 23 . It is made to escape from the engagement recess 26 of the hole 25.

In addition, since the floating bracket 32, which is energized by the action of the spring hook 28 and the bow tension spring 35, is deviated from the reference position X by a predetermined angle α as described above, the connecting rod is 38, the main shaft 24 is automatically rotated in the left direction in the figure as shown in FIG. The main shaft fitting 23 is rotated in conjunction with the rotational direction, and the rotation end point is when the upper end of the elongated hole 13 of the main frame 9, which rotates downward, is locked by the pin 22 of the set fitting 1.

Further, due to this rotation of the main shaft fitting 23, the stopper piece 18 is positioned in front of the engagement recess 27 at the other end of the guide elongated hole 25, and is pulled by the return force of the tension spring 20 and engaged in the engagement recess 27. This stopper piece 18
The main shaft fitting 23 is locked to the main frame 9 by this.

As the main spindle fitting 23 rotates, both arms 44 fixed to the main shaft 24 integrated with the main spindle fitting 23 via keys 24a are rotated, and are connected to one of the m arms 44 via an inversion handle 58. The forward vehicle 41 that has been rotated is reversed to the right side, and the rear vehicle 42 connected to the negative side arm 44 via the reversal linking rod 62 and the rear falcon reversing handle 60 is reversed to the right side, as shown in FIG. 4. car ahead 41
And the rear falcon 42 is automatically reversed and set to the right side in the direction of travel.

Next, as described above, the direction of the tractor is changed while the front vehicle 41 and the rear vehicle 42 are lifted, and the three-point suspension mechanism of the tractor is lowered in preparation for re-ploughing, and as shown in FIG. And while the main frame 9 is lowered, the main frame 9
is rotated upward about the mounting shaft 21 as a fulcrum, the lower end of the long hole 13 is locked by the pin 22, and the connecting rod 38 is also pushed up.

At the same time, as shown in FIG. 7, the floating bracket 32 automatically rotates around the main shaft 24 from the position shown by the chain line in the figure to the position shown by the solid line due to the action of the metal fitting 28 and the tension spring 35. Then, it comes into contact with the locking piece 25b at the other end of the main spindle fitting 23, and prepares for the next direction change.

In this case, since the connecting rod 38 is pushed up, the protruding rod 37 is not interlocked by the connecting rod 38, and the stopper pusher 33 is not interlocked toward the stopper piece 18 against the tension spring 34. The stopper piece 18 is held in position within the engagement recess 27.

Then, the front vehicle 41 and the rear falcon 42, which have changed direction and been lowered by being towed by a tractor, perform plowing.

Next, when changing direction to the outward route again at the terminal point of the return trip, when the set bracket 1 is lifted in the same manner as above, the main frame 9, connecting rod 38, main shaft bracket 23, floating bracket 32, etc. are the same as above. The forward vehicle 41 and the rear vehicle 42 are automatically switched and reversed to prepare for plowing on the outward journey.

In this way, the displacement of the front vehicle 41 and the rear vehicle 42 is automatically reversed in conjunction with the raising and lowering movement of the three-point suspension mechanism of the tractor. When the automatic deflection reversal of the tension spring 73 is not required, when the operating lever 76, which is always locked to the locking portion 78a of the engagement frame 75, is released from the locking portion 78a, the tensioning action of the tension spring 73 is removed. hook part 70 of locking frame 71
is locked to a pin 22 located in the elongated hole 13 of the main frame 9,
Movement of the pin 22 within the elongated hole 13 is blocked, thereby preventing automatic reversal of the deflection of the front vehicle 41 and the rear tail 42.

Next, FIG. 8 shows a locking body according to another embodiment. In this case, a guide frame 79 is provided inside one side frame part 10 of both side frame parts 10 of the main frame 9, and this guide frame A locking rod 80 as a locking body is engaged with the locking rod 79 so as to move forward and backward, and a coil spring 82 is attached to the locking rod 80 by positioning it between a pin 81 protruding from the locking rod 80 and the guide frame 79. Also, the flange 83 provided on the locking rod 80 is engaged with the guide frame 79, and the rear end of the wire 74 is connected to the base end of the locking rod 80, and the locking rod 80 is connected to the rear end of the wire 74. The tip of the locking rod 80 is adapted to engage with the locking pin 22.

Note that by aligning the pin through hole 4 of the set metal fitting 1 with the pin through hole 12 of the main frame 9 and inserting a fixing pin (not shown) as a locking body into this, the three-point suspension mechanism of the tractor can be raised and lowered. It is possible to prevent the front vehicle 41 and the rear traction vehicle 42 from being deflected or reversed even if the front vehicle 41 and the rear traction vehicle 42 are displaced.

According to the present invention, the main frame 9 can be reliably moved up and down within the vertical rotation range of the main frame 9 in accordance with the up and down movement of the three-point suspension mechanism of the tractor, and the linking rod 38 can also be moved up and down. The stopper pusher 3 is pressed by this connecting rod 38.
3, the stopper piece 18 is reliably switched, and the arm 44 integrated therewith is reliably rotated horizontally via the floating fitting 32, the main shaft fitting 23, and the main shaft 24. The working direction can be automatically and reliably reversed, and at this time, the stopper piece 18 rotatably attached to the main frame 9 is inserted into the guide slot 25 of the main shaft fitting 23.
Since the projections are provided so as to selectively engage and disengage from the engagement recesses 26 and 27 in the interior, the deflection of the expropriation umbrella body 41 set by the switching operation of the stopper piece 18, together with the non-operation of the stopper pusher 33, is prevented. The inverted position can be held securely,
Moreover, this deflection reversal is performed using the weight of the expropriation umbrella 41 itself as it moves up and down, so even when multiple expropriation umbrellas 41 are connected, each The expropriation umbrella body 41 can be reliably deflected and reversed in the same direction, and therefore reciprocating plowing can be performed with high efficiency.

In addition, when the above-mentioned automatic deviation reversal is not desired, by locking the locking bodies 71 and 80 to the locking pin 22, the main frame 9 is aligned with the mounting shaft 21 relative to the set metal fitting 1. The main frame 9 can be integrally connected and locked, and the vertical movement of the main frame 9 can be reliably prevented. Therefore, by locking the main frame 9 according to the working conditions in the field, the holding umbrella 4 can be reliably fixed.
It is possible to prevent the deflection reversal of the expropriation umbrella body 4, and it is possible to stably tow it and to stabilize the work.
1 can be used for many purposes.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view of the automatic reversing dual-purpose base, Fig. 2 is an exploded perspective view of the same switching mechanism, and Fig. 3 is a side view of the above locking body. Fig. 4 a, b is a plan view explaining the overall operation, Fig. 5 a, b to Fig. 7 a, b
are explanations of the functions of the main parts, a is a side view,
b is a plan view, and FIG. 8 is a side view of a locking body portion according to another embodiment. 1... Set metal fittings, 5... Pin through hole,
9... Main frame, 13... Long hole, 18...
...Stopper piece, 21...Mounting shaft, 22.
...Lock pin, 23 ... Main shaft metal fitting, 24
...Main shaft, 25...Guide slot, 26
．． 27...Engagement recess, 32...Idle fitting, 33...Stopper push fitting, 38...
・・Renjo, 41・・・・Forward conception as an expropriation umbrella,
44... Arm, 71.80... Locking frame and locking rod as locking bodies.

Claims (1)

[Scope of utility model registration request] a set metal fitting 1 connected to a three-point suspension mechanism of a tractor;
A main frame 9 is rotatably supported in the vertical direction via a mounting shaft 21 at the lower part of the set metal fitting 1 and has an arc-shaped elongated hole 13 with the mounting shaft 21 as the center of the circle. 13 and a locking pin 22 inserted into the pin through hole 5 of the set metal fitting 1.
, a locking body 71.80 that is attached to the main frame 9 and locks and releases the locking pin 22, a main shaft 24 rotatably vertically disposed at the rear of the main frame 9, and an upper part of the main shaft 24. An arcuate long guide hole 25 with the main shaft 24 as the center of the circle is fixed to the rear part.
and a sector-shaped main shaft fitting 23 in which engaging recesses 26 and 27 are connected to the rear of both ends of the guide elongated hole 25, and the main shaft fitting 23 is attached to the upper part of the main shaft 24 so as to be horizontally rotatable. The floating metal fitting 32 is always rotated and energized in a favorable manner by interlocking the movable bracket 32, and the arm 44 is attached to the rear part of the arm 44 whose front end is fixed to the lower part of the main shaft 24. The dual-use sill body 41 whose displacement is reversed is rotatably supported by the main main frame 9 in the front and rear direction, and is protruded into and engaged with the guide elongated hole 25 formed in the main shaft fitting 23. A stopper piece 18 that selectively engages and disengages in the recesses 26 and 27 to fix rotation of the spindle fitting 23, a connecting rod 38 whose front end is attached to the upper part of the set fitting 1 so as to be movable up and down, and this connecting rod. A stopper pusher is rotatably attached to the rear end of the rod 38 and moves forward and backward to release the engagement of the stopper piece 18 that has engaged with the engagement recess 26 or 27 as the three-point suspension mechanism rises. An automatic reversing dual-use tractor characterized by comprising a metal fitting 33.