JPS5850804Y2 - Automatic reversing double plow - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automatic reversing dual-use vehicle, and the above-mentioned
This invention relates to a device that automatically moves in conjunction with the lifting and lowering operations of a point suspension mechanism.

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 hitch bars 8 from both sides of the lower part of the lower frame portion 2b of the base frame 2 via a support frame 7.

Also, a connecting pin 9 is inserted between the upper and lower sides 2a and 2b 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 arm on both sides10. ．． 10. Connecting pin 11 at the rear end of
A main frame 13 serving as a machine frame is attached via the main shaft 12 so as to be rotatable in the horizontal direction.

This upper frame 13 is provided with upper and lower tier frame parts 13a, 13b and an outer tier frame part 13c, and the upper tier frame part 13. A plywood section 14 is provided protruding from one side of the front part of the frame section 13, and a shaft rod 15 is provided upright on the base plate section 14, and the upper frame section 13. A frame part 16 is provided at the rear of one side, and the lower end of the stopper piece 17 is supported on the frame part 16 by a shaft 18 so as to be rotatable in the front and rear direction. The passive pieces 19 and 20 are stretched over the upper part of the stopper piece 19 and the frame part 16, and the pressure spring 21 is stretched between the stopper piece 17 and the frame part 16. The rear end portions of the both side arms 10a and 10b are located between the upper frame portion 13a and the middle frame portion 13c of the main frame 13, and the shaft rod 15 and the stopper piece 17 are respectively They are arranged in front and behind the main shaft 12.

Further, 22 is a main shaft metal fitting formed in a substantially fan shape, and this main shaft metal fitting 22 includes the main frame 13 and one side arm 10.
The main shaft 12 is fixed and vertically disposed on the main shaft fitting 22, and an arcuate long guide hole 23 with the main shaft 12 as the center is bored in the rear part of the main shaft fitting 22.
Four retaining parts 24 and 25 are arranged in a row at the rear of both ends of the
The main shaft fitting 22 is located on the side of the engagement recesses 24 and 25.
Locking pieces 26 and 27 are integrally provided upright at both end portions.

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. The shaft rod 15 is loosely fitted onto the base plate portion 14 of the main frame 13.

Further, reference numeral 31 denotes a floating metal fitting, and this floating metal fitting 31 is pivotally supported on the upper protrusion of the main shaft 12 of the main shaft metal fitting 22 so as to be freely rotatable in the horizontal direction. It is attached so that it can move back and forth in the front and rear directions, and a tension spring 33 is stretched between the rear end of this stopper pusher 32 and the rear end of the floating bracket 31.
3 holds the stopper pusher 32 in position.

Further, the main shaft fitting 22 is rotated to one side of the reference position When engaged with the locking piece 26 at one end and deviated by a predetermined angle α from the reference position A tension spring 34 is tensioned, and the tension spring 34 is set to rotate the main shaft metal fitting 22 in the direction in which the floating metal fitting 31 is deviated.

Furthermore, the upper part of the protruding rod 36 fixed to the trapper 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 movable back and forth. The rear end of the connecting rod 37 is rotatably connected via the universal joint body 368, and the front end of the connecting rod 37 is connected to the rear end of the actuating fitting 6 which is rotatably mounted on the mast 4. A coil spring 6 is rotatably connected via a universal joint body 68 and is connected to a chain 67 at the front end of this operating metal fitting 6.
The outer ends of the chain 67 are removably connected, and the outer end of the chain 67 is locked to a locking part 73 protruding from the rear of the tractor 70.

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

This movable frame 38 is provided with both side frames 39 and 40, and link pins 41 are connected between the front and middle parts of the two side frames 39 and 40, and between the rear and front frames 42, intermediate frames 43, and rear frames. 44 is mounted on a shaft so as to be freely rotatable in the horizontal direction, and a plurality of pairs (three pairs in the figure) of cylindrical shaft holes 45.
It is formed by arranging 46 and 47 oppositely.

Then, the above-mentioned side frames 39°40 in this variable frame 38
are the lower center frame portion 135 and the middle frame portion 13 in the main frame 13.
o, and in this state both side frames 39.4
The connecting pin 11 and the main shaft 12 are inserted through 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 128, and the connecting pin 11 is fixed to the other side frame 40. 39 so as to be rotatable.

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

Each of these green bodies 51, 52, 53 has an inclined shaft 56 rotatably fitted to the lower end of the beam 54 via a shaft tube 55,
It is formed by providing a tip 57 and a green spatula 58 at the front of the tilting shaft 56, attaching a reversing rod 59 to the rear of the tilting shaft 56, and attaching a road bed 60 to the lower part of the beam 54.

Then, a shaft rod 61 is provided protruding from the rear rear part of the holder 48, 49 and the upper rear part of the beam 54 in the rear green 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 into the upper part of the reversing rod 59.
This interlocking rod 64 is loosely fitted into a retaining ring 65 that is protruded from the lower part of the side frame 40.

In addition, in FIG. 1, 66 is a fixing pin, and this fixing pin 66 is attached to the negative side arm 10 from the upper frame portion 2a of the base frame 2. When the fixing pin 66 is removed, both arms 10. ．． 10. can be rotated laterally, 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
．． ．． 10b is used in a fixed state.

In such a configuration, the hitch bar 8 is connected to the lower link 71 of the three-point suspension mechanism of the tractor 70, and the mast 4 is connected to the top link 72 of the three-point suspension mechanism via a pin (not shown). The chain 67 is attached to a locking portion 73 protruding from the rear of the tractor 70.
At the same time, a coil spring 68 is connected to the other end of the chain 67, and the other end of the coil spring 68 is detachably locked to the front part of the operating metal fitting 6.

Also, both side arms 10 of the connecting frame 1. ．． 10. and set the above-mentioned leaves 50, 51, 53 connected via the variable frame 38 so that the direction of travel is shifted to either the left or right side as shown in FIGS. 3 and 4, Then, flower plowing is performed while being towed by a tractor 70.

First, as shown in FIG. 3, each leaflet is 50°51.
53 is a case where impregnation is performed in a right-handed state.

In this case, the main frame 13, which is rotatably connected to the connecting rod 1 via the connecting pin 11 and the main shaft 12, is grounded by the lowering of the connecting frame 1, and as shown in FIG.
, l), 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 mowing work is performed while the floating metal fitting 31 is brought into contact with the locking piece 26 on the engagement recess 24 side with the main shaft 12 as a fulcrum due to the tensile action of the tension spring 34.

Next, when the tractor is turned and the leaves 50, 51, 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 the figure, the connecting frame 1 is lifted, and the arms 10 on both sides are attached to the connecting frame 1. ．． 10b and the main frame 9 with each manipulator 50, 51, 53 attached via the variable frame 38 is also 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.

At the same time, since the floating metal fitting 31, which is energized by the action of the spring hook metal fitting 28 and the tension spring 34, is in a state deviated from the reference position X by seven predetermined angles α as described above, The main shaft 12 is moved by the pulling action of the rod 37.
As shown in FIG. 6, the main spindle fitting 22 is automatically rotated in the left direction in the figure as shown in FIG. Ru.

Further, due to this rotation of the main shaft fitting 22, 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. The main shaft fitting 22 is locked to the main frame 13 by the stopper piece 17.

Each leaf 5 is connected to the main shaft 12 integral with the main shaft fitting 22 via a variable frame 38 by the rotation of the main shaft fitting 22.
0, 51, and 53 are sequentially reversed to the left, that is, the front soft body 50 provided via the main shaft 12 and the variable frame 38 is to the left in the plowing direction, and the rear soft 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 plowing direction, and each umbrella body 50, 51, 53
are each fixedly held at a predetermined position in a state inverted to the left in the plowing direction.

Therefore, as shown in Fig. 4, each leaflet is 50°51.5
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 of the green bodies 50, 51, 53, and the three-point suspension mechanism of the tractor is lowered in preparation for re-ploughing, and as shown in FIG. 7a, the connecting frame is 1 and the main frame 13 are lowered, and when the respective leaf bodies 50, 51, 53 connected thereto via the variable frame 38 descend and land, the operating metal fitting 6 is rotated by the return force of the coil spring 68 of the chain 67. and this operating metal fitting 6
The linking rod 37 connected to is interlocked.

At the same time, as shown in FIG. 7, the spring hook of the floating bracket 31 is automatically rotated around the main shaft 12 from the left position in the figure to the right position as shown by the solid line by the action of the bracket 28 and the tension spring 34. The main spindle fitting 22 moves to abut against the locking piece 27 at the other end of the 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 31 is not moved toward the stopper piece 17 against the tension spring 33, and the stopper piece 17 is positioned within the engagement recess 5. 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 the direction to the outward route again at the terminal point of the return route, when the connecting frame 1 is lifted in the same way as above, the chain having the both side arms 10a, 10b, the main frame 13, the connecting rod 37, and the coil spring 68 67, the spindle metal fitting 22, the floating metal fitting 31, etc. operate in the same manner as described above, and each grass body 50, 51.
53 is automatically switched and reversed to prepare for plowing on the outbound trip.

In this way, the displacement of each grass body 50, 51, 53 can be automatically reversed in conjunction with the raising and lowering movement of the three-point suspension mechanism of the tractor.

According to the present invention, the fertilizing work can be performed while connected to the tractor via a three-point suspension mechanism, and the deflection and reversal of the grass body can be automatically performed in conjunction with the vertical movement of the machine. In this case, the stopper piece rotatably attached to the machine frame was provided to protrude so as to selectively engage and disengage from the engagement recess in the guide elongated hole of the spindle metal fitting, so that the stopper pusher piece would not work. Together with this, it is possible to reliably maintain the deflection reversal position of the expropriation canopy set by the switching operation of the stopper piece, and even when multiple expropriation umbrellas are connected, each expropriation canopy can be kept in the same position. The stopper piece has a retaining piece that fits and engages with the engagement recess of the main shaft fitting, and a relatively wide passive piece for the stopper push fitting. By providing this section, when reversing the deflection of the umbrella body, the operating range of the floating bracket can be made as large as possible within limited conditions, and the grass can be moved smoothly and reliably with a small reversal starting force. The deflection can be reversed, so reciprocating plowing can be performed with high efficiency.

[Brief explanation of drawings]

The figures show one embodiment of the present invention. Figure 1 is a side view of a dual-use multiple shot, Figure 2 is an exploded perspective view of a part of it, and Figures 3 and 4 show the overall operation. Explanatory plan view, Fig. 5a,
Figures 1) to 7 a and 1) respectively explain the functions of the main parts, and a is a side view and b is a plan view. 6...Operating metal fittings, 10. ．． 10b...
Arms on both sides as machine frame, 12...Main shaft, 13
...Main frame as machine frame, 17...Stopper piece, 171...Engagement piece, 19.20...
... Driven piece part, 22 ... Main shaft fitting, 23 ...
...Guide slot, 24゜25...Engagement recess, 31...Idle fitting, 32...Stopper push fitting, 38...Variable Frame, 40...
・-Side frame, 50, 51゜53...Front green body, intermediate green body and rear green body as dual-use drag bodies, 67...
...Chain, 68...Coil spring, 70...
...Tractor.

Claims (1)

[Scope of utility model registration request] A machine frame connected to the three-point suspension mechanism of the tractor, a main shaft vertically rotatably attached to the rear of the machine frame, and an arc-shaped guide fixed to the top of the main shaft and centered around the main shaft at the rear. A fan-shaped main shaft metal fitting having an elongated hole and engagement recesses connected to the rear of both ends of the guide elongated hole, and a horizontal frame having one side frame pivotally supported on the machine frame and fixed to the main shaft. A variable frame in the shape of a parallelogram that can freely rotate in any direction, a dual-purpose falcon body that is attached to this variable frame and whose deflection is reversed in response to the rotational deviation of the variable frame, and a horizontally rotatable frame attached to the top of the main shaft. an idler fitting that is pivotally supported by the machine frame and interlocks with the main shaft fitting and is always biased and rotationally energized in the direction of bronze; a stopper piece that protrudes into the elongated guide hole and selectively engages and disengages into the engagement recess to fix the rotation of the main spindle fitting; A chain having a coil spring is stretched between the two, and a chain is connected to the other end of the actuating metal fitting, which is rotatably attached to the connecting rod connected to the actuating metal fitting. a stopper pusher for releasing the engagement of the stopper piece engaged with one of the engagement recesses; the stopper piece has a stopper pusher located above the retaining piece for the engagement recess; A self-reversing dual-use greenery characterized by passive pieces stretched on both sides.