JPH0822176B2 - Seedling planting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling planting device used in a seedling planting machine.

[0002]

2. Description of the Related Art Conventionally, as seen in Japanese Utility Model Laid-Open No. 54-80933 and Japanese Utility Model Laid-Open No. 56-5418, a planting main body of a seedling planting machine has an extrusion rod for operating a seedling extruded body. It is housed inside the cavity. Here, this pushing rod moves the seedling extruding body up and down by swinging like a seesaw around the shaft in the middle part during the vertical movement of the planting main body by the action of the cam and the spring. Since it has a great influence on the operation, it is necessary to mount it accurately on the planting main body, and in the past, it was supported by inserting it into a round hole penetrating the side wall of the planting main body.

[0003]

Since this round hole is cut out from the cavity, it is necessary to form a hole in the side wall in production and to prevent water from entering from the round hole into the cavity. In addition, it required a seal and a lid and was expensive. Also,
If muddy water enters the inside due to damage of the seal or lid and deterioration due to secular change, the seedling extrudate may malfunction and planting of seedlings may become unstable.

[0004]

In order to solve the conventional problems, the present invention provides a case body 3 having an opening 2 for a planting main body 1 having a seedling dividing body 8 mounted on the tip side thereof, and the opening. A seedling extruded body that is formed by a lid body 4 that covers 2 and forms a cavity 5 inside, and pushes out one seedling of one strain divided by a seedling division body 8 at the tip side of the cavity 5 to the field. The upper part of 9 is located, the cam 14 is arranged on the base side in the cavity 5, and the middle part of the pushing rod 16 is arranged so that one end engages with the upper part of the seedling extruding body and the other end contacts the cam 14. In the seedling planting device which is swingably supported by the support shaft 17, both ends of the support shaft 17 of the push-out rod 16 are inserted into the bearing grooves 15, 15 formed on the inner surfaces of the left and right side walls of the case body 3, and the lid is closed. The support shaft 17 is provided with a bearing groove by a spring 18 that is provided between the body 4 and the pushing rod 16 to push down the seedling pushing body 9. While pressing the end of the 5-15,
Action position a for pushing down the seedling extrusion body 9 of the spring 18
The swinging shaft center d of the support shaft 17 is positioned on the side of the line c connecting the cam shaft 14 and the rotating shaft center b of the cam 14 opposite to the spring 18, and the pushing rod 1
The seedling planting device is characterized in that the end of 6 is brought into contact with the cam 14 from the same side as the side on which the swing axis d is located.

[0005]

According to the present invention, both ends of the support shaft 17 of the pushing rod 16 are inserted into the bearing grooves 15 formed on the inner surfaces of the left and right side walls of the case body 3, and the lid 4 and the pushing rod are pushed. 16, the support shaft 17 is pressed against the end portions of the bearing grooves 15 and 15 by the spring 18 that pushes down the seedling extruding body 9 to operate, so that the assembly is easy and the support shaft 17 Even if the bearing grooves 15 and 15 are slightly worn, the spring 18
It has excellent durability because it can eliminate the play caused by abrasion.

The swing axis d of the support shaft 17 is located on the side opposite to the spring 18 along a line c connecting the action position a of the spring 18 for pushing down the seedling extrusion body 9 and the rotation axis b of the cam 14. Since the end portion of the push-out rod 16 is brought into contact with the cam 14 from the same side as the side where the swing axis d is located, the support shaft 17 of the push-out rod 16 is inserted into the bearing grooves 15 and 15. The action force of the spring 18 that presses the end of the plant effectively works, and it is practically as accurate as when it is supported by inserting it into a round hole penetrating the side wall of the planting main body as in the past. The push-out rod 16 can be mounted swingably, and good seedlings can be planted.

Further, since the planting main body 1 does not have a hole penetrating the outer wall for supporting the support shaft 17, muddy water may enter inside due to damage of the seal and lid and deterioration due to aging unlike the conventional example. The seedling extrudate 9 operates well over a long period of time, and the planting of seedlings is stable.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a planting main body, which is a case body 3 having an opening 2 whose top is open from the tip to the middle, and the opening 2
And a lid body 4 for covering the inside of which a cavity 5 is formed. The base portion is rotatably attached to the tip of the swing rod 6 by a pin 7 and a downward seedling dividing body 8 is attached to the tip. It is fixed.

Reference numeral 9 denotes a seedling extruding body, which is slidably provided at the tip of the planting main body 1 so that an extruding element 10 provided at the lower end thereof moves up and down along the seedling dividing body 8. Reference numeral 11 denotes a crank-shaped shaft which is configured to be inserted into an intermediate portion of the planting main body 1 and swung by a drive shaft 13 which is supported and driven by a machine body 12, and a cam 14 is fixed in the cavity 5. There is. In addition, a pair of U-shaped bearing grooves 15 having an open top are directly provided on the inner wall of the cavity 5 of the planting main body 1 so as to face each other on the left and right, and are integrally formed at an intermediate portion of the pushing rod 16. Both ends of a support shaft 17 provided in the above are supported, and the tip end and the base end of this pushing rod 16 are engaged with the upper portion of the seedling pushing body 9 and the cam 14, respectively. Is fixed and the lower end of the spring 18 fixed to the inner surface of the lid 4 presses the working position a of the push-out operating rod 16 on the tip side of the support shaft 17, and both ends of the support shaft 17 are U-shaped. Bearing groove 15
It is pressed against the bottom end of 15. Then, swing of the support shaft 17 on the side opposite to the spring 18 (downward in FIG. 2) of the line c connecting the action position a of the spring 18 for pushing down the seedling extrusion body 9 and the rotation axis b of the cam 14. The shaft center d is located, and the push rod 16 is in contact with the cam 14 from the same side as the side where the swing shaft d is located (from below in FIG. 2).

In the figure, 19 is a seedling stand, 20 is a float, and 21 is a rotating shaft. Since the seedling planting device in this seedling planting machine is configured as described above, when the drive shaft 13 rotates, the planting main body 1 is swung by the shaft 11, but the base portion of the planting main body 1 rotates. It is pivotally attached to the tip of the swing rod 6 pivotally attached to the machine body 12 by the shaft 21, and swings around the rotary shaft 21. To do. Then, the rotation of the shaft 11 causes the cam 14 to rotate with respect to the rotation axis b with respect to the planting main body 1 to raise and lower the base of the push-out operating rod 16, so that the tip end thereof rotates around the swing axis d of the support shaft 17. On the contrary, the seedling extruding body 9 is moved up and down to move the seedling extruding body 9 up and down. Therefore, the extruding element 10 is at the upper limit when the seedling dividing body 8 is on the upper side, and in this state, the extruding body 10 is projected to the seedling mounting table 19 to cover one seedling. It is divided only, and it is held by both and descends, and when it reaches the lower limit in the soil, the extruder 10 further descends and pushes the seedling downward and pushes it into the soil. It returns to the original position with respect to the divided body 8.

Here, the spindle 17 of the pushing rod 16 for actuating the seedling pushing body 9 is provided in the U-shaped bearing grooves 15 and 15 provided on the inner wall of the groove-shaped cavity 5 of the planting main body 1. Since the support shaft 17 is stored and supported, and the support shaft 17 is not exposed to the outside of the outer wall of the planting main body 1, water does not enter the cavity 5 from the support portion of the support shaft 17. . Further, since the bearing grooves 15, 15 are directly provided on the side wall in a U-shape with the upper side opened, they are die-cast by die-casting when forming the cavity 5, and no processing is required. It is extremely easy to manufacture and does not require waterproofing means such as a seal or lid, so it can be provided at an extremely low price.

Further, since the support shaft 17 in the middle portion of the pushing operation rod 16 is constantly pressed by the spring 18 for pushing down the seedling pushing body 9 against the bottom of the U-shaped bearing grooves 15 and 15 to rotate, the bearing groove. No play occurs between the shaft 15 and the support shaft 17. Further, the spring 18 of the line c connecting the action position a of the spring 18 for pushing down the seedling extrusion body 9 and the rotation axis b of the cam 14.
The pivot axis d of the support shaft 17 is located on the opposite side to
Since the push-out rod 16 is configured to contact the cam 14 from the same side as the side on which the swing axis d is located, the support shaft 17 of the push-out rod 16 presses against the ends of the bearing grooves 15, 15. Since the acting force of the spring 18 works effectively, the push-out operating rod 16 can be swingably mounted with high precision, and the movement amount of the push-out element 10 does not change, so that stable planting performance is always exhibited. .

[Brief description of drawings]

[Figure 1] Side view of part of the seedling planter

FIG. 2 is a side sectional view of the planting device.

FIG. 3 is a plan sectional view of the planting device.

FIG. 4 is a front sectional view of a main part.

[Explanation of symbols]

1 Main body with planting 2 Opening 3 Case body 4 Lid body 5 Cavity 8 Seedling division body 9 Seedling extrusion body 14 Cam 15 Bearing groove 16 Extrusion actuating rod 17 Spindle 18 Spring a Spring 18 Action to push down the seedling extrusion body 9 Position b Rotating axis of cam 14 c Line connecting action position a and rotating axis b d Swing axis of support shaft 17

Claims (1)

[Claims] 1. A planting main body 1 having a seedling division body 8 mounted on the tip side thereof is constituted by a case body 3 having an opening 2 and a lid 4 covering the opening 2 to form a cavity 5 therein. Then, the upper part of the seedling extruding body 9 on which the seedlings for one strain divided by the seedling dividing body 8 are extruded and planted in the field is located on the tip side in the cavity 5,
The cam 14 is arranged on the base side of the cavity 5, one end swingably intermediate portion of the extrusion operating rod 16 so that the top and engage the other end of the seedling extrudate is brought into contact with the cam 14 shaft 17 In the seedling planting device supported by, the support shaft 1 of the pushing rod 16 is inserted into the bearing grooves 15 formed in the inner surfaces of the left and right side walls of the case body 3.
Both ends of 7 are inserted, and the support shaft 17 is pressed against the end portions of the bearing grooves 15 and 15 by the spring 18 which is provided between the lid 4 and the pushing rod 16 to push down the seedling pushing body 9 . Spring
18 the seedling extruding body 9 is pushed down and actuated.
On the opposite side of the spring 18 on the line c connecting the rotation axis b of the arm 14
The swing shaft center d of the support shaft 17 is positioned so that the pushing rod 16
From the same side as the side on which the swing axis d is located,
4. A seedling planting device characterized in that it is brought into contact with 4 .