JPS6118651Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the structure of the seedling stand in various rice transplanters, and more specifically, the seedling stand attached to the seedling transplanting device is divided into upper and lower parts, and the upper seedling stand is placed on the lower seedling stand. It is configured to be rotatable with respect to the stand, so that replenishment of seedling pine can be carried out extremely easily and quickly.

Next, we will explain an embodiment in which the present invention is applied to a rice transplanter towed by a traveling power vehicle such as a tractor. In the figure, 1 is a passenger tractor equipped with front wheels 2, 2 and lug wheels 3, 3 instead of rear wheels The operator sitting on the seat 4 on the top of the machine 6 can steer the machine by turning the handle 5, and the output of the engine 7 mounted on the front of the machine 6 of the tractor 1 is controlled by the transmission. Power is transmitted via a telescopic universal joint 18 from a PTO shaft 9 protruding from the rear of the body 6 to an input shaft 17 of a seedling planting device 10, which will be described later.

This seedling planting device 10 has seedling planting nails 1 in a conduction case 11.
Three seedling planting units 14 with attached floats 13 and 2, 12 are installed in parallel, and each conduction case 11, 1 is installed in parallel.
A tubular member 15, 1 with a built-in conduction shaft between 1, 11
Furthermore, a guide rail 16 having an L-shaped cross section is provided horizontally on the upper surface of each conductive case, and the surface side is arranged so that the seedlings can be vertically transferred at each of the 12 locations of the seedling planting nails. A horizontally long lower seedling mounting stand 20 partitioned by a convex guide part 19 is mounted on the guide rail 16 with its upper end facing forward. Then, the boat-shaped sliding key 22 is engaged with the grooved cam shaft 21 to which power is transmitted from the central transmission case 11, and the cross-feeding shaft 23 is rotated on the sliding key 22, so that the cross-feeding shaft 23 is connected to the grooved cam shaft 21. 21, and is attached to the back surface of the lower seedling stand 20 through the brackets 24, 24 at both ends of the traverse shaft 23, so that the lower seedling stand 20 can be moved laterally and reciprocally. do. Furthermore, the one-way feed is attached to the vertical feed shaft 25 on the back side of the lower seedling stand 20 via the cross feed shaft 23 linked thereto so that the sliding key 22 reciprocates at a constant angle at the end of the horizontal movement. By rotating the clutch 26', the vertical feed shaft 25
The structure is such that the seedling pine is vertically fed by a ratchet wheel 26 disposed at.

A support rail 28 having a hollow circular cross section is provided parallel to the lower seedling stand 20 and along the horizontal direction between the upper ends of the brackets 27, 27 protruding from the conduction cases 11, 11 at both the left and right ends. When attaching a plurality of upper seedling stands 29 so as to be freely rotatable in the vertical direction and slidably in the lateral direction via the cross-sectional notched arc-shaped supports 30, the vertical movement of the upper seedling stands 29 is The length l2 from the support rail 28, which is the pivot point, to the lower end of the upper seedling stand 29 is,
It is longer than the length l1 from the support rail 28 to the upper end of the upper seedling stand 29, in other words, the pivot point of the upper seedling stand 29 is shifted upward from the center position of the upper seedling stand 29 in the vertical direction. While located in
A long guide groove 31 having a length corresponding to the lateral movement length of the lower seedling stand 20 is bored in the rail 28 along its longitudinal direction, and a notch protrudes from the middle part of the back surface of the upper seedling stand 29. A bifurcated rod 32 is provided on the arc-shaped support 30 so as to protrude so as to intersect with the outer periphery of the long groove 31 of the rail 28, and a pin 33 is inserted between the bifurcated rod and the long groove 31 of the support rail so that it cannot be removed. Installing. Each upper seedling mounting stand 29 is formed into an upwardly facing individual character shape for each width of the seedling pine, and when the seedling pine is placed on each of the seedling mounting stands 29, the lower end left and right side walls of the seedling mounting stand 29 are The plates 34, 34 are in contact with the upper end convex guide portion 19 of the corresponding lower seedling platform 20,
While the lower end of the upper seedling stand 29 is configured to be attached to the lower seedling stand 20, the force of the spring 36 suspended between the tip of the pin 33 and the back surface of the upper seedling stand 29 allows the upper seedling stand 29 to be attached. It biases the upper end side downward.

Reference numeral 35 denotes a support stand that comes into contact with the back surface of the upper seedling stand 29 when it is placed in a substantially horizontal state.

Further, 37 is a micro switch provided near the overlapping part of each of the upper and lower seedling stands 29, 20, and when each of the upper seedling stands 29 rotates upward and separates from the upper end of the lower seedling stand, the corresponding position is activated. micro switch 37
is turned on, and the wires are connected so that an alarm 38 such as a buzzer or lamp installed at an appropriate location on the aircraft body is activated.

Note that this seedling planting device 10 is equipped with a tractor body 6.
The lift arms 42, 42, which rotate at the rear of the fuselage 6, are connected to the lower link via a connecting rod. 40, 40 to enable the seedling planting device 10 to move up and down significantly relative to the body, and frame support rods 43, 43 whose base ends are pivotally connected to both the lower links 40, 40, Each seedling planting unit 14
The frame body 44 is attached to the rear part of the seedling planting device 10 through the lower part of the tubular members 15, 15 connecting between the two, and a pair of left and right tail wheels 4 are attached to the lower surface of the rear frame body 44.
5 and 45 are provided so that the frame body 44 can run along the tiller plate regardless of the vertical movement of the seedling planting device 10 which slides the field surface by the float 13, and a step is provided on the upper surface of the frame body 44. At the same time, a seat 46 is provided at a substantially central position of the frame body 44 in a plan view.

In this configuration, an operator sits on the seat 4 of the traveling body 6, lowers the float 13 so as to touch the field field I, tows the seedling planting device 10, and pulls the seedling planting device 10.
When power is transmitted from the seedling to the input shaft 17 of the seedling planting device 10, the seedling planting claws 12 in each unit 14 swing in one step, and in synchronization with this, the lower seedling platform 20 moves horizontally one pitch to each seedling. The planting nails are divided into individual plants from the lower end of the lower seedling stand 20 and planted along six rows in the field.

At this time, the upper seedling rest 29 is slidably supported by the pipe-shaped support rail 28 via the notched arc-shaped support 30 at the middle part of the back surface, and the lower left and right walls of the upper seedling rest 29 are connected to the lower seedling rest 29. Since it is fitted between the upper end guide parts and overlapped, the upper seedling stand 29 can be moved laterally together with the lower seedling stand 20, and as the seedling planting progresses, the upper end of the seedling pine moves to the upper seedling stand. 29 to the upper end of the lower seedling stand 20, and when the seedling pine on the upper seedling stand 29 disappears,
The upper platform 29 is mounted on the rail 2 by the force of the spring 36.
It automatically rotates upward around 8 points and becomes approximately horizontal.

Therefore, the operator places the seedlings taken out from the preliminary table 47 onto the upper seedling table 29 which is in a substantially horizontal state. In this case, by locating the fulcrum of the vertical rotation of the upper seedling support 29 at a position shifted upward from the center position of the upper seedling support 29 in the vertical direction, When a pine is placed on the seedling pine, the upper seedling mount 29 automatically rotates downward due to the weight of the seedling pine, and its lower end is joined to the upper end of the lower seedling mount 20, so that the seedling pine on the upper seedling mount 29 is The seedlings are smoothly spliced onto the lower seedling platform 20.

In summary, the present invention divides the inclined seedling stand in a rice transplanter into a lower seedling stand and an upper seedling stand whose lower end is joined to the upper end of the lower seedling stand, and the lower seedling stand is attached to the machine. On the other hand, the back of the upper seedling stand has a rail attached to the machine body, etc.
The upper seedling tray is disposed so as to extend in the horizontal direction and parallel to the seedling tray, and the upper seedling tray is supported on the rail so as to be rotatable in the vertical direction and slidable in the longitudinal direction of the rail. A fulcrum for vertical rotation of the seedling platform is located at a position shifted upward from the vertical center of the upper seedling platform, and biases the upper seedling platform in an upward rotational direction. It is made up of a spring,
In this configuration, when there are no seedlings on the upper seedling stand, the upper seedling stand automatically rotates upward so that its lower end is separated from the lower seedling stand, and the seedlings are placed on the upper seedling stand. When a pine is placed on the upper seedling stand, the upper seedling stand automatically rotates downward and its lower end is joined to the lower seedling stand. Therefore, seedling pine can be replenished when the upper seedling stand rotates upward. All you have to do is to do it in a very comfortable position, and you can shorten the time and labor required to add seedlings, which also has the effect of improving work efficiency.

The present invention can be applied not only to those in which the seedling platform is tilted forward but also to those in which it is tilted backward, and can also be applied to riding-type and walking-type rice transplanters.
Needless to say, it can be applied to both a multi-row seedling stand and a single-row seedling stand.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a riding rice transplanter, Fig. 2 is a plan view of Fig. 1, Fig. 3 is an enlarged sectional view taken along the line - The drawings are an enlarged cross-sectional view taken along the - line in FIG. 2, FIG. 5 is an enlarged cross-sectional view of the main part of FIG. 4, and FIG. 1... Tractor, 6... Traveling body, 10... Seedling planting device, 11... Conduction case, 12... Seedling planting claw,
13...Float, 16...Guide rail, 20
... Lower seedling stand, 27 ... Bracket, 28 ...
Circular cross-section support rail, 29... Upper seedling stand, 30
... Notched arc-shaped support shape, 35 ... Support stand, 36 ...
...Spring.

Claims (1)

[Scope of utility model registration request] A slanted seedling platform in a rice transplanter is divided into a lower seedling platform and an upper seedling platform whose lower end is joined to the upper end of the lower seedling platform, and the lower seedling platform is connected to the transverse feed mechanism of the machine. On the other hand, on the back side of the upper seedling stand, a rail attached to the machine body etc. is arranged so as to extend in the horizontal direction and parallel to the seedling stand, and the upper seedling stand is attached to the rail in the vertical direction. a portion that is rotatable in the direction of the rail and slidably supported in the longitudinal direction of the rail, and whose fulcrum for vertical rotation of the upper seedling support is shifted upward from the center of the upper seedling support in the vertical direction; A seedling loading stand for a rice transplanter, which is located at the upper seedling loading stand and is provided with a spring that biases the upper seedling loading stand in an upward rotational direction.