JPS5849201B2 - Automatic reversing double plow - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic reversing pear, and the present invention relates to an automatic reversing pear, which is capable of reversing the deflection of a pear pulled by connecting one three-point suspension mechanism of a truck.
This is done automatically in conjunction with the vertical movement of the point suspension mechanism.

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

Reference numeral 1 denotes a main frame, and this main frame 1 has a bar through hole 3 bored in the front part of the front frame part 2 which is shaped like a channel, and the bar through hole 3 is connected at three points in the track A. A lower link 59 serving as a suspension mechanism is connected via a hitch bar 60.

Moreover, when both side frame parts 4 are set up on the front frame part 2 and a single pin through hole 5 is bored in the upper part of this both side frame part 4, three points of }, this pin through hole 5, and this hole A are formed. A top link 62 serving as a suspension mechanism is connected via a pin 63.

Further, a support pin 6 is horizontally suspended between the both side frame portions 4 below the pin passage hole 5, and trifurcated upper, middle and lower step frame portions 7, 8, 9 are connected to the rear of the front frame portion 2. A through hole 10 is bored in each of the middle and lower frame parts 7, 8.9, and the lower end of the stop flange piece 11 is pivoted on a horizontal axis 12 so as to be rotatable in the front and rear directions. Support this stopper piece 11
A tension spring 13 is stretched across the space between the upper frame portion 7 and the rear end protrusion portion of the upper frame portion 7.

Reference numeral 14 denotes a main shaft metal fitting having a substantially fan-like shape, and a main shaft 15 that is rotatably inserted into the through hole 10 of the main frame 1 is fixed and vertically fixed to the main shaft metal fitting 14 at approximately the middle portion thereof. An arcuate long guide hole 16 with the main shaft 15 as the center of the circle is bored in the rear part of the main shaft fitting 14, and engaging recesses 17 and 18 are connected to the rear of both ends of the long guide hole 16. established,
The main shaft fitting 1 is located one side of the engaging recesses 17 and 18.
Locking pieces 19 and 20 are provided upright on both side ends of 4.

Furthermore, a spring hook 21 is attached to the front end of the main shaft fitting 14.
The rear end portion is rotatably supported in a horizontal direction via a shaft 22,
The upper part of the shaft rod 24, which protrudes from the upper part of the main frame 1, is rotatably fitted into the elongated hole 23 formed by the splash fitting 211.

Further, reference numeral 25 denotes a floating metal fitting, which supports the upper protruding portion 1 of the main shaft 15 of the main shaft metal fitting 14 so as to be rotatable in the horizontal direction. At the same time, a tension spring 27 is stretched between the rear end of the stopper pusher 26 and the rear end of the idler 25, This tension spring 271 serves to hold the stop collar pusher 26 in position.

Furthermore, when the main shaft fitting 14 is rotated one degree on one side of the reference position The locking piece 191 at one end of the main shaft fitting 14 rotates to the side.
When engaged, the state is deviated by a predetermined angle (α) from the reference position The main shaft fitting 14 is set so that the tension spring 281 rotates the main shaft fitting 14 in the direction in which the floating fitting 25 is deviated.

Furthermore, a protruding rod 30 fixed to the stopper pusher fitting 26 is loosely fitted into the elongated hole 29 formed in the longitudinal direction of the floating metal fitting 25 so as to be freely movable back and forth, and the upper end of the protruding rod 30 is freely fitted. A block body 31 as a joint is rotatably attached via a shaft, one end of a wire 32 is connected to this block body 31, and the wire 32 is guided forward and connected to the main frame 1 along the way.
At both ends of the frame portion 4}ζ, the horizontally suspended support pin 6 is placed on top of the frame portion 4}. It is connected to a protruding locking body 65.

Next, a front pear body 33 and a rear pear body 34 as dual-use pear bodies are attached to the rear part of the main frame 1 so as to be horizontally rotatable.

That is, the front wing body 33 rotates between the middle frame part 8 and the lower frame part 9 of the main frame 1.
One arm 3 of the 51 parallel arms 35 on both sides
The front end of the main shaft 15 is fixed by the key 36, and the front shaft 3 is fixed at the side of the main shaft 15.
71, the front end of the other side arm 35 of the both side arms 35 is attached so as to be horizontally rotatable, and this both side arm 35
The beam 39 can be rotated in the horizontal direction via the rear shaft 38 at the rear end; the front part of the inclined shaft 40 is attached to the lower end of the beam 39; a pear tip 41 and a pear spatula 42 are provided. At the same time, a reversing rod 43 is attached to the rear part of the tilting shaft 40.

Further, the rear pear body 34 has front end portions of both side arms 45 attached to front shafts 44 on both sides provided between the upper frame portion 7 and the middle frame portion 8 of the main frame 1 so as to be horizontally rotatable. In addition, a beam 46, a tilting shaft 47, a tip 48, a pear spatula 49, a reversing rod 50, etc. are provided in the same manner as in the front pear body 33, respectively.

The middle part of the front pear reversal handle 51 is pivotally supported on the upper protrusion of the rear shaft 38 on one side of the front pear body 33, and this reversal handle 5
1 is pivotally supported on one side arm 35 by a shaft 52, the rear part of the reversible handle 51 is loosely fitted into the reversible handle 43, and a rear flower is placed on the beam 46 of the rear piriform body 34. Reversed pattern 53
The middle part of the inversion handle 53 is supported by a shaft 54, and a reversal interlocking rod 55 is pivoted between the one side bent end of the reversal handle 53 and the one side protrusion of the one side arm 35 of the front pear body 33. When supporting and spanning the shaft, the rear part of the reversing handle 53 is loosely fitted onto the reversing rod 501.

In FIG. 1, reference numeral 56 indicates a plowing depth adjustment device for the front piriform body 33, and reference numeral 57 indicates a fixing pin for suppressing deviation of the rear piriform body 34, and the fixing pin 57 is removed. The arms 45 on both sides of the rear body A 34 are connected to the front and rear shafts 44.5.
In this embodiment, the fixing pin 57 can be rotated laterally via the fixing pin 57.
are not removed, that is, both arms 45 of the posterior piriform body 34 are removed.
shall be used in a fixed state.

Note that y in the figure indicates the center line of the reference position X.

Next, the operation of the above structure will be explained.

In the above structure, the pear body 33 and the rear pear body 34 are turned over on either the left or right side and pulled by the tractor A to perform flower plowing.

First, let us assume that falcon plowing is performed in the left-inverted state shown in FIG. 3a.

At this time, the main frame 1 with the square body 33 and the rear green body 34 biased via the lower link 59 and the 1-spring 62
is lowered, and the front body 33 and the rear body 34 are grounded.

Then, as shown in FIGS. 4a and b1, the main shaft fitting 14 is
is inside the engagement recess 17 connected to one end of the guide elongated hole 16]
The stopper piece 11 attached to the main frame 1 engages and locks it, and the floating metal fitting 25 is connected to the tension spring 28.
The plowing operation is performed with the main shaft 15 as a fulcrum and in contact with the locking piece 19 on the engagement recess 17 side.

Next, change the direction of the truck and move it to 1 as shown in Figure 3b.
When the front body 33 and the rear body 34 are reversed to the right in the direction of travel, when the three-point suspension mechanism of the tractor is raised, the main frame 1 is moved to the lower link 5 as shown in FIG. 5a.
9 and the top link 62, and the front plastic body 33 and rear flower body 34 attached to the rear end of the main frame 1 are lifted.

Furthermore, the lifting and rotation I by the lower link 59 and the top link 62 causes one end to be locked to the block body 31, and the other end to be locked to the locking body 651 of the tractor A (L7).
The wire 32 having the coil spring 66 is pulled, and the position of the wire 32 in contact with the support pin 6 is on the side 1 of the medical body 65.
As this moves, the stopper push metal fitting 26 is fixed to the lower end of the protruding rod 30 via the piece 31 that locks one end of the wire 32 and the protruding rod 30 to which it is attached.
is pulled forward against the tension spring 271, and the tip of the stopper pusher 26 pushes the stopper piece 11 forward against the tension spring 13, causing the stopper piece 11 to guide the spindle metal 14. It is made to escape from the engagement recess 17 of the elongated hole 16.

Therefore, the lower link 59 and the top link 6
21ζ When lifting the main frame 1, lower link 5
9 and the top link 62 at the time of lifting up, therefore, when the main frame 1 is lifted, the wire 32 is moved by a predetermined length necessary to push the stopper piece 11 via the stopper push fitting 26. To be stretched to some extent.

At the same time, the floating bracket 25, which is energized by the action of the spring hook 21 and the tension spring 28, is in a state deviated from the reference position X by a predetermined angle (α), as described above. Therefore, as shown in FIG.
are rotated in conjunction with each other in the rotation direction.

Also, due to the rotation of the main shaft fitting 14, the stopper piece 11
is located one end of the guide elongated hole 16 on the front surface of the engagement recess 18, and the restoring force of the tension spring 13 is pulled and engaged in the engagement recess 18, and this stopper piece 11 locks the main shaft fitting 14 to the main frame 1.

Then, due to the rotation of the main shaft fitting 14, the main shaft fitting 14
The main shaft 15 integrated with the main shaft 15 {both sides arms 35 fixed via the keys 36 are rotated, and the front pear body 33 connected to this one side arm 35 via the inversion handle 51 is inverted to the right side. , the rear body 34 connected to the one side arm 35 via the reversal linking rod 55 is reversed to the right, so that the front body 33 and the rear body 34 are turned to the right in the direction of travel, as shown in FIG. 3b. It will be automatically flipped and set.

Next, as described above, the direction of the tractor is changed while the front pear body 33 and the rear pear body 34 are lifted, and the three-point suspension mechanism of the tractor is lowered in preparation for re-ploughing, as shown in Figure 6a.
As shown in 1, the front flower body 33 and the rear flower body 3 of the main frame 1
When 4 lands on the ground, the wire 32 that was pulled once when the front piriform body 33 and the rear piriform body 34 are lifted is automatically relaxed and returned to its original position, and the floating bracket 25 is moved to the position shown in FIG. 6b. As shown, due to the action of the spring hook 21 and the tension spring 28, it automatically rotates around the main shaft 15, comes into contact with the locking piece 20 at the other end of the main shaft fitting 14, and is ready for the next direction change. Be prepared.

Then, recultivation is performed by the front ferrule 33 and the rear ferrule 34, which have changed direction and been reversed and lowered by being towed by a tractor.

Next, when the direction is changed to the outward path again at the terminal point of the return trip, when the main frame 1 is lifted in the same way as above, the wire 32, the main shaft fitting 14, the floating fitting 25, etc. are operated in the same manner as above, The front frame 33 and the rear frame 34 are automatically switched and reversed to prepare for plowing on the outward journey.

According to the present invention, when reversing the deflection of the dual-use pear bodies 33 and 34, when the main frame 1 is moved up and down by the vertical movement of the three-point suspension mechanism of the tractor A, the tensile action of the wire 32 is Therefore, the stopper pusher 26 is interlocked to ensure that the stopper piece 11 is switched once, and the arm 35 integrated therewith is reliably switched via the floating bracket 25, the main shaft metal 14, and the main shaft 15.
This horizontally rotates, and via this arm 35, the dual-use flower body 33,
34 to the desired working direction automatically and reliably.
The attached stopper piece 11 is provided so as to protrude so as to be selectively engaged and disengaged into the engagement recesses 17 and 1B in the guide elongated hole 16 of the spindle metal fitting 14, so that the stopper piece 11 can be moved in conjunction with the movement of the stopper pusher metal fitting 26. The deflection reversal position of the dual-use flower bodies 33 and 34 set by the switching operation of the stopper piece 11 can be reliably maintained.
Since the wire 32 is stretched between the locking body 65 in the main body 64 and the stopper pusher 26 through the wire 32, the wire 32 acts sufficiently to operate the stopper pusher 26 in response to the vertical movement of the main frame 1. Automatic deflection reversal of dual piriform bodies 33 and 34 {
Therefore, it is possible to provide an automatic reversing dual-use flower that can carry out reciprocating plowing once with high efficiency.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of the automatic reversing Souyousui, Fig. 2 is an exploded perspective view of a part of it, and Fig. 3 is an exploded perspective view of a part of it.
Figures a and b are plan views explaining the overall operation, Figure 4 a and b
Figures 6a to 6b are for explaining the functions of the respective main parts, and a is a side view and b is a plan view. A...Tractor, 1...Main frame, 11.
...Stopper piece, 14...Main shaft fitting, 1
5...Main shaft, 16...Guide slot, 1
7, 18... Engagement recess, 25... Idle fitting, 26... Stopper push fitting, 32...
...Wire, 33, 34...Anterior body and rear piriform body as dual piriform body, 35,45...Arm, 59,62...3-point suspension Lower link and 1. link as a mechanism, 64...main body, 65...locking body.

Claims (1)

[Claims] 1 A main frame 1 connected to the three-point suspension mechanism of the tractor A, a main shaft 15 rotatably installed at the rear of the main frame 1, and an upper part of the main shaft 15 fixed to the main shaft 15. When forming an arcuate long guide hole 16 with the center of the circle 1
Engagement recesses 17 and 18 are provided at the rear of both ends of the guide slot 16 here.
This main shaft fitting 14 has a fan-shaped main shaft fitting 14 .
The lower part of the main shaft 15 is attached to the rear part of an arm 35 to which the front end is fixed, and the dual-purpose pear bodies 33 and 34 are deflected and reversed through the rotation of the arm 35, and the upper part of the main shaft 15 is horizontally moved. An idler fitting 25 that is rotatably supported by one shaft and interlocks with the main shaft fitting 14 and is always biased to one side and rotationally biased, and the main frame 1 is rotatably supported in the front-rear direction. together with the stopper piece 11 which locks the rotation of the main shaft fitting 14 by engaging and disengaging the main shaft fitting 14 (provided protrudingly within the formed guide elongated hole 16 and selectively into the engagement recesses 17, 18); The above-mentioned tractor A
The stopper push fitting 26 which releases the engagement of the stopper piece 11 engaged with the engagement recess 17 or the engagement recess 181 from one end of the three-point suspension mechanism is connected to one end of the stopper push fitting 261. The stopper pusher 2 is provided with a wire 32 connected to a locking body 65 whose other end protrudes from the tractor A1, and the wire 32 is moved forward and backward by the vertical movement of the three-point suspension mechanism of the tractor.
6 and the floating fitting 25, and the dual-use pear bodies 33, 34 are operated via the main shaft fitting 14 and the main shaft 15.
An automatic reversing dual-use contract characterized by reversing the left and right deviation by one angle.