JPH0350645Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is characterized in that a seedling stand and a planting part having planting claws are installed on the traveling vehicle body via a link mechanism so that it can be raised and lowered freely, and the link mechanism is connected to the left and right sides through sensor wires. This invention relates to a striation marker device for a riding rice transplanter in which the striation markers are interlocked and connected so that the left and right striation markers are automatically raised and lowered by the vertical movement of the planting section.

Previous Utility Model Application Publication No. 1984-94718 and Utility Model Application No. 1987-
As shown in Japanese Patent No. 55025, there is a means for raising the striation marker in conjunction with the raising of the planting part, thereby making it easier to carry out the turning operation at the edge of the ridge.

However, in the case of the above-mentioned conventional means, the lifting device for raising and lowering the streaking marker is provided on the machine side, so if the planting section is removed from the machine side, the left and right The striped markers fell freely without any restrictions, causing problems such as the markers becoming a hindrance in the handling and storage of the planting area, resulting in a decrease in efficiency in these operations.

However, the present invention has a structure equipped with an automatic marker switching mechanism that alternately lowers the left and right streaking markers to a use state based on the lifting and lowering movement of a planting section that is installed on a traveling vehicle body so as to be able to rise and fall freely. A marker storage member for storing the marker and a marker lock mechanism for supporting the marker at the storage position are included in an automatic marker switching mechanism, and the switching mechanism is provided in the planting section.

According to the present invention, even if the planting section is removed from the traveling vehicle body, the left and right streak markers can be held in the stored position by the marker storage member or marker lock mechanism of the automatic marker switching mechanism provided in the planting section. The marker can be safely protected, the marker can be prevented from becoming an obstacle, and the work of attaching and detaching the planting portion can be carried out efficiently.

Embodiments of the present invention will be described below in detail based on the drawings. FIG. 1 is a schematic side view of a riding rice transplanter, FIG. In the car body, 2 is the front body, 3 is the rear body,
4 and 5 are connection frames that connect the front and rear car bodies 2 and 3 so as to be bendable only in the horizontal direction via a rotation fulcrum shaft 6; Front and rear wheels for paddy fields installed with
11 is a column whose base end is fixed to the front vehicle body 2; 12 is a preliminary seedling stand supported by the column 11; 13 is a driver's seat that is attached to the upper rear part of the front vehicle body 2 via the column 11; and 14 is a front vehicle body 2. 15 is an engine mounted on the rear vehicle body 3.

In addition, 16 in the figure is a planting part for six-row planting that is installed in the front part of the front vehicle body 2 via a three-point linkage mechanism 17 that is a link mechanism so that it can be raised and lowered. 19 is a planting claw for taking out and planting one seedling from the seedling platform 18; 20 is a transmission case to which the seedling platform 18 and planting claw 19 are attached; 21 is a transmission case for mounting the seedling platform 18 and the planting claw 19; A float supporting the transmission case 20, 22 is a front bumper attached to the transmission case 20, 23 and 24 are striped markers supported on the front bumper 22 so as to be able to rise and fall, and 25 is a hitch mast that supports each transmission case 20.
The seedling stand 18 and the planting claw 19 are appropriately driven via the PTO transmission shaft 26 to continuously plant seedlings, and as shown in FIG. 3, the three-point link mechanism 17
The lower link 27 and top link 2 that constitute the
The rear end of 8 is connected to the front body 2, and each link 27,
The front end of 28 is connected to the hitch mast 25,
The middle of the lower link 27 is connected to one end of the lift arm 29 via a lift link 30, and the piston rod 32 of a hydraulic cylinder 31 is connected to the other end of the lift arm 29.
Attach the lift lever 33 to the right side of the
By operating the cylinder 31, the links 27 and 28 are moved up and down, and the entire planting section 16 is moved up and down.

As shown in FIG. 4, marker mounting brackets 34 and 35 are fixed on both sides of the front bumper 22 of the planting section 16, and streak markers 23 and 24 are provided at the tips to draw lines on the planted field on the unplanted side. The base ends of the left and right marker support rods 36, 37 are pivoted to the brackets 34, 35 via fulcrum shafts 38, 39 so as to be able to rotate outwardly, and each support rod 36, 37 is rotated outwardly. Springs 40, 41 are provided, and each support rod 36,
Left and right upright holding wires 42, 43 are attached to the base end of 37.
The support rods 36, 37 are erected by pulling the wires 42, 43, while the springs 4 are erected by loosening the wires 42, 43.
0 and 41 to rotate each support rod 36 and 37 outward, and mark the striped marker 2 at the tip of each support rod 36 and 37.
3 and 24 are formed so as to be grounded on the planting field surface.

As shown in FIGS. 5 to 8, a sensor frame 45 having a cross section of 2 mm 0 is fixed to the middle of the hitch mast 25 via an outer receiving bracket 44, and guide rails 46, 46 are fixed to the sensor frame 45. A pair of side U-shaped actuating bodies 47 and 48 are slidably arranged side by side through the
7, 48 flat U-shaped wire receiving parts 47a, 48a
The left and right upright holding wires 42 and 43 are fixed to the ends, respectively. A receiving metal fitting 49 having a U-shaped cross section and serving as a switching mechanism is slidable in a direction perpendicular to each of the actuating bodies 47 and 48.
are installed inside the sensor frame 45, and the actuating body 47,
The wire receiving parts 47a, 48a of 48 are brought into contact with the receiving metal fitting 49 to prevent the actuating bodies 47, 48 from retreating to hold the marker support rods 36, 37 upright, and also to hold the marker support rods 36, 37 upright. A planar fan-shaped switching plate 51 serving as a switching mechanism is horizontally rotatably supported on the switching mechanism 45 via a fulcrum shaft 50, and when one operating body 47 or 48 comes into contact with the switching plate 51, this switching plate 51 The actuating body 48 or 47 of the actuating body 48 or 47 is formed in such a manner that the actuating body 48 or 47 is alternately swung and rotated.
A switching pin 53 protruding through an arc-shaped elongated hole 52 on the upper surface of the sensor frame 45 is implanted in the switching plate 51, and is interlocked with the other ends of the switching links 54, 54 whose one end is supported by the fulcrum shaft 50. pin 55
A fulcrum shaft 50 is placed between each pin 53, 55.
and tension spring 5 between each pin 53 and 55.
6 and 56, and the notch 4 of the receiving metal fitting 49.
An interlocking pin 55 is engaged with 9a, and the receiving metal fitting 49 is formed to slide in the same direction in conjunction with the swinging of the switching plate 51. By sliding the receiving fitting 49, the wire receiving portion 47 of each operating body 47, 48
The receiving fitting 49 is provided with an opening 49b through which either one of the wire receiving portions 47a and 48a or both of the wire receiving portions 47a and 48a are inserted, and the switching operation of the switching plate 51 and the receiving fitting 49 is Therefore, the displacement of one of the actuating bodies 47 or 48 allows the next displacement of the other of the actuating bodies 48 or 47, and the respective actuating bodies 47, 48 are configured to be able to alternatively and alternately slide backward.

Further, a connecting shaft 58 is connected to each of the above-mentioned operating bodies 47, 48 and the wire receiving plate 57 held between them.
The ends of the shaft 58 are inserted into the elongated holes 46a, 46a of the guide rails 46, 46, and the elongated holes 47b, 48b for controlling the displacement of the actuating bodies 47, 48 are inserted into the respective actuating bodies 47, 48. The long holes 47 are opened in the action parts 47c and 48c of
b, 48b, and when the wire receiving plate 57 is displaced more than a certain amount, each actuating body 4
7 and 48 are formed to be freely movable. One end of the sensor wire 59 is fixed to the middle of the top link 28, and the other end of the sensor wire 59 is fixed to the wire receiving plate 57, and the outer receiving bracket 44 and the wire receiving plate 57 are connected to each other. A return spring 60, which is a marker storage member, is wound around the sensor wire 59 between them, and as shown in FIG. , the sensor wire 59 is made to protrude via the return spring 60 in conjunction with the raising of the planting part 16, and the actuating bodies 47, 4
8 and pulls each upright holding wire 42, 43, while the sensor wire 59 is retracted via the top link 28 in conjunction with the lowering of the planting section 16, and the actuating bodies 47, 48 are placed in a floating state. Bracket 49
The configuration is such that either one of the actuating bodies 47, 48 is retracted via the actuating body 47, 48.

Next, a photo 61 is attached to the upper end of the switching pin 55, and the switching plate 51 is manually operated via the photo 61.
is horizontally rotated and the receiving bracket 49 is slid to change the descending order of the left and right tension markers 23, 24,
A lock plate 62 serving as a marker lock mechanism is slidably attached to the upper surface of the sensor frame 45, and a V-shaped groove 63 is provided in the lock plate 62.
By engaging the interlocking pin 55, the receiving fitting 49 is held in a neutral state, and the receiving fitting 49 prevents the left and right tension markers 23, 24 from lowering due to the retreat of the respective actuating pieces 47, 48. It is to be formed.

On the other hand, the sensor wire 5 is connected to the top link 28.
9 is connected via a locking/disengaging pin 64 and an adjusting fitting 65, and a wire is attached to a locking plate 66 fixed to the top link 28 via an adjusting bolt 65a and a nut 65b, which are adjusting fittings 65. The planting part 16 is supported from the vehicle body 1 of the machine by supporting the metal fitting 67 so that its length can be adjusted, and by connecting and supporting the wire end 59a of the sensor wire 59 to the metal fitting 67 in a removable manner via the pin 64. At the time of removal, the sensor wire 59 is configured to be removed at this pin 64 portion.

The present invention is constructed as described above, and when rice planting work is performed continuously by lowering the planting section 16 to the planting field as shown in Fig. 1, one of the streak markers 23 or 24 is placed on the unplanted side. lower the marker 23 or 2.
4 to draw a line on the unplanted surface to form the next planting trajectory, and when the hydraulic cylinder 31 is driven by operating the lift lever 33 to raise the planting part 16, the hitch mast 25 and top link 28 becomes smaller, the sensor wire 59 is protruded by the force of the return spring 60, and each actuating body 47,
48 is advanced, the upright holding wires 42, 43 are pulled through the actuating bodies 47, 48, the left and right marker support rods 36, 37 are erected, the left and right tension markers 23, 24 are raised and held, and the ridge is raised. Make a sharp turn (change of direction). When rice planting work is resumed, when the planting part 16 is lowered again by operating the lift lever 33, the bending angle θ between the hitch mast 25 and the top link 28 increases, and the sensor wire 59 is pulled by the top link 28. The advance of each operating body 47, 48 by the return spring 60 is released. At this time,
Each operating body 4 is connected via the upright holding wires 42 and 43.
7 and 48 and under the condition shown in Fig. 6,
One of the actuating bodies 47 is moved backward through the opening 49b of the receiving metal fitting 49, and the wire receiving portion 47 of the actuating body 47 is
a is brought into contact with the switching plate 51, and the switching plate 51 is rotationally displaced to a position where the other operating body 48 is brought into contact. Bracket 49 by
At the same time, as the upright holding wire 42 fixed to the wire receiving part 47a is withdrawn, the left marker support rod 36 is rotated outward by the coiled spring 40, and the left tension marker 23 is ground. The other actuating body 48 has a wire receiving part 48a that comes into contact with a receiving metal fitting 49, and a right marker support rod 37 that is connected to the wire receiving part 48a via an upright holding wire 43.
, and raise and support the right muscle pull marker 24.

When the planting part 16 is further raised as described above after reaching the edge of the ridge, each actuating body 4 is moved by the return spring 60.
7, 48, and left and right muscle pull markers 23, 2
4 is raised and held, and as the actuating body 47 advances, the receiving fitting 49 is slid by the tension spring 56.
Then, when the planting section 16 is lowered again after turning,
Contrary to the above, the actuating body 47 comes into contact with the holder 49 and raises and holds the left muscle tension marker 23, while the actuating body 47
The wire receiving part 48a of No. 8 is connected to the opening 49b of the receiving fitting 49.
6, and at the same time rotates the switching plate 51 as shown in FIG. 6, the right marker support rod 37 is
When the planting part 16 is adjusted up and down according to the depth and shallowness of the tiller on the planting field, the bending angle θ with the top link changes slightly. Also, this change is caused by the elongated hole 47b,
48b, each streak marker 23, 24
The upward movement of is prevented.

When the hitch mast 25 and the three-point link mechanism are disconnected and the planting section 16 is removed from the vehicle body 1 of the machine, the sensor wire 59 connected thereto is removed by removing the pin 64. It is removed together with the planting part 16 at the same time, and as a result, the adjustment fittings 65 such as the adjustment bolt 65a are compared to the conventional method in which the wire 59 is directly removed using an adjustment bolt and nut.
Since the operation of the wire 59 itself is unnecessary, it is not easy to attach and detach the wire 59, and each time the wire 59 is attached again, the working length of the wire 59, that is, the tension marker 2
There is no need to perform standard adjustment of the lifting amount in steps 3 and 24, and it is possible to greatly reduce the labor involved in these operations.

In addition, when the planting part 16 is removed, the left and right tension markers 23 and 24 are held raised even by the force of the return spring 60, and the V-shaped groove 63 in the lock plate 62 and the pin 55 are Even when engaged, the markers 23 and 24 are fixedly held in the raised position, and are safely protected inside the planting part 16 without any inconvenience such as protruding outside the planting part 16.

As is clear from the embodiments described above, the present invention is such that the left and right streak markers 23 and 24 are alternately lowered to the use state based on the lifting and lowering movement of the planting section 16 that is installed on the traveling vehicle body 1 so as to be able to rise and fall freely. In the structure provided with automatic marker switching mechanisms 49 and 51, a marker storage member 60 stores the markers 23 and 24.
The automatic marker switching mechanisms 49, 51 are provided with a marker locking mechanism 62 for supporting the markers 23, 24 in the storage position, and the switching mechanisms 49, 51 are provided in the planting section 16. The marker storage member 6 of the automatic marker switching mechanism 49, 51 provided in the planting section 16 even if the planting section 16 is removed.
0 or the marker lock mechanism 62 can hold the left and right muscle tension markers 23, 24 in the stored position, and can safely protect the markers 23, 24.
Further, the markers 23 and 24 can be prevented from becoming an obstacle, and the work of attaching and detaching the planting portion 16 can be carried out efficiently.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of a riding rice transplanter showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the planting section, Fig. 4 is an explanatory diagram of the operation of the same part, 5 is an enlarged plan view of the same, FIG. 6 is a sectional plan view of the same, FIG. 7 is a front view of the same showing main parts, and FIG. 8 is a side view of the same. 1... Traveling part, 16... Planting part, 23, 24...
...Marker, 49...Bracket (switching mechanism), 51...
...Switching plate (switching mechanism), 60... Return spring (marker storage member), 62... Lock plate (marker lock mechanism).

Claims (1)

[Scope of utility model registration request] The left and right streak markers 23, 24 are set based on the vertical movement of the planting section 16, which is installed on the traveling vehicle body 1 so as to be vertically movable.
In a structure including automatic marker switching mechanisms 49 and 51 that alternately lower markers into a use state,
The marker automatic switching mechanisms 49, 51 are provided with a marker storage member 60 for storing the markers 23, 24, and a marker lock mechanism 62 for supporting the markers 23, 24 in the storage position.
1 is provided in a planting section 16. A streak marker device for a riding rice transplanter.