JPH1056829A - Vegetable transplanter - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To stabilize planting depth control of a planting section (10), widen an applicable range of ridge height, and improve planting function. SOLUTION: A sensor (13) for detecting the height of the planting portion (10) with respect to the ground is attached, and the planting is adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetable transplanter for receiving potted seedlings of one plant taken out from a seedling tray of a seedling mounting stand by a seedling picking nail into a planting nail and sequentially planting the seedlings in a field.

[0002]

Conventionally, a change in the planting depth causes a shift between the floating (elevation) range of the planting portion and the dead zone of the planting depth control, so that the planting depth changes more than the floating range of the planting portion. However, there is a problem that planting depth control is not performed.

[0003]

According to the present invention, a sensor for detecting the height of the planted portion with respect to the ground is mounted and the planting is adjusted, and the planting portion is changed by changing the planting depth. The floating area and the dead zone width of the planting depth control eliminate the problem of relative deviation, stabilize the planting depth control of the floating planting part, widen the ridge height adaptation range, and easily improve the planting function Things.

[0004]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an explanatory side view of the planting portion, FIG. 2 is an overall side view, and FIG. 3 is an overall plan view thereof. In FIG. 1, (1) is a base frame on which an engine (2) is mounted, and (3) is the frame. (1) A transmission case connected to the rear end,
(4) rear wheels which are left and right traveling drive wheels which are supported on the transmission case (3) via a left and right swing case (5) so as to be able to swing up and down, and (6) is at a front end side of the front frame (1). Left and right front wheels supported so as to be able to swing up and down via a swing arm (7), (8) is a seedling supply device installed behind the transmission case (3) via a chassis frame (9), and (10) is a left and right Seedling planting section installed between the rear wheels (4) and (4) via the planting transmission case (11) in the transmission case (3), and (12) a pressure-reducing roller for repressing the ridge surface (A) , (13) are gauge rings for supporting the seedling mounting part (10) so as to be able to swing up and down, and the seedling tray (15) on the seedling table (14) reciprocating left and right in the seedling supply device (8). ) And one pot of seedlings is taken out with the seedling removal nail (16). Is supplied to the hopper-type planting claw (18) of the planting part (10), and is moved at regular intervals on the running ridge surface (A) of the body by operating the steering handle (19). It is configured to plant, ie, transplant, pot seedlings.

[0005] Further, (20) is a vehicle height adjusting lever, (2)
1) is a planting clutch lever, (22) is a traveling speed change lever, (23) is a stock speed change lever, (24) is a planting depth adjusting lever, (25) is a left and right side clutch lever, and (26).
Is a top hood, (27) is a fuel tank, and (28) is a spare seedling stand.

Further, as shown in FIGS. 4 and 5, a hydraulic lifting cylinder (29) for raising and lowering the body to adjust the vehicle height.
And a horizontal control hydraulic rolling cylinder (30) for correcting the horizontal tilt angle of the body, and a left and right swing case (16) that idles and supports at both left and right ends of the traveling output shaft (31) of the transmission case (3). 5) Left and right fixed pivot plates (33a) are attached to the base bosses (32a) (32b) of (5).
(33b) and swing arms (36) at both ends of the rolling fulcrum shaft (35) via connecting links (34b) with turnbuckles (34a) on the pivot plates (33a) (33b).
a) (36b) are connected to each other, and a swing shaft (37) for rotatably penetrating the middle of the fulcrum shaft (35) is connected to the tip of a piston rod (38) of the lifting / lowering cylinder (21); (35) is connected to a piston rod (40) of a rolling cylinder (30) via a rolling arm (39). The rolling cylinder (30) is connected to the swing shaft (37) via a bracket (41). At the same time, the guide frame (42) is fixed on the upper side of the transmission case (3).
The elevating cylinder (29) is attached to the guide frame (42), and the swing shaft (37) is configured to reciprocally slide and guide by the long groove (43) of the guide frame (42).

Left and right swing arms (27a, 27b) project downward and upward from both left and right ends of the fulcrum shaft (35), respectively, to move the piston rod (38) of the lifting cylinder (29) forward and backward. , The swing shaft (37) is slid, the left and right swing cases (5) and (5) are moved up and down integrally in the same direction to raise and lower the body to adjust the vehicle height, while the rolling cylinder (30) Piston rod (4
0), the fulcrum shaft (35) is rotated, and the left and right swing cases (5) and (5) are moved up and down in the opposite direction to perform horizontal control for correcting the horizontal inclination angle of the body. doing.

Further, a front frame (45) having a front bumper (44) is bolted and fixed to the front surface of the base frame (1), and a fixed shaft (46) is provided on the front frame (45), and both ends of the shaft (46) are provided. Left and right swing fulcrum shaft (47) (47)
The left and right front wheels (6) and (6) are attached to the left and right swing arms (7) and (7) at the other end via front axles (48) and (48), with one end fixed to each shaft (47) (47). And the right and left swing fulcrum shafts (47) (4)
7), the front ends of the left and right swing rods (50) and (50) are connected via links (49) and (49).
0) (50) Connect the rear end to each of the pivot plates (33a) (33b).
To drive the rear wheels (4) and the front wheels (6)
And a hydraulic lift cylinder (29) for lifting and lowering the body by pushing and pulling the swing shaft (37), and a rolling fulcrum shaft (35) supported by the swing shaft (37).
And a rolling cylinder (30) for inclining the fuselage to the left and right by rotating the gutter (B) so as to straddle the ridge (A).
The front and rear wheels (6) and (4) are arranged on the vehicle, and the left and right front and rear wheels (6) and (4) are moved up and down in the same direction by controlling the elevating cylinder (29) to adjust the vehicle height. The left and right front and rear wheels (6) and (4) are moved up and down in opposite directions by control, so that the body is tilted left and right.

Further, as shown in FIGS. 6 and 7, the planting transmission case (11) and the planting pawl are interposed via a planting drive shaft (51) and a floating fulcrum shaft (52) provided substantially on the same axis. Elevating guide plates (53) are swingably provided on both sides of the transmission case (3), and bolted front ends of both sides of a U-shaped planting guard frame (54) in plan view to the case (11) and the guide plate (53). At the same time, the front end of the gauge frame (56) is swingably connected to the guard frame (54) via the support shaft (55), and the gauge wheel (13) is axially supported at the rear end of the gauge frame (56). A link (58) which can be connected to the rear end of the guard frame (54) so as to be adjustable in position via a lever guide (57) and the connection length can be switched in two steps by replacing a pin. Through the The bar (24) is connected to the gauge frame (56), the height of the support of the gauge wheel (13) with respect to the planting nail (18) is changed by operating the lever (24), and the seedling transplanting depth of the planting nail (18) is changed. It is configured to change the length.

[0010] The present invention further comprises upper and lower stoppers (59) and (60) for setting a floating (elevating) range of the planting portion (10) including the gauge wheel (13). Each of the stoppers (59) and (60) is fixed to the height of the stopper (59) and (60) via a bracket (61) or the like so that the floating operation of the planting portion (10) performed around the shafts (51) and (52) is performed. Stopper (59)
It is configured to be regulated by (60).

The engine (2) drives a rotary valve type lifting valve (62) for operating the lifting cylinder (29) and a slide valve type rolling valve (63) for operating the rolling cylinder (30). A hydraulic pump (not shown) is provided in the hydraulic unit case (64), and the case (64) is mounted on the front upper surface of the base frame (1). A fulcrum arm (6) is provided on the right side of the base frame (1) via a support shaft (65).
6), and the fulcrum arm (66) is attached to a vehicle height adjusting arm (70) of a spool (69) of an elevating valve (62) via a telescopic connecting rod (68) having a buffer spring (67). Are linked. Further, the rear end of the sensor arm (71) is integrally fixed to the planting claw elevating guide plate (53), and a roller (72) is pivotally supported at the front end of the sensor arm (71). The fulcrum arm (66) is brought into contact with the fulcrum arm (66), and a return spring (73) is connected to the fulcrum arm (66).
0) to the vehicle height adjusting arm (7) via the operating rod (74).
0), and the lift cylinder (29) is controlled by manual operation of the lever (20).

As is apparent from the above description, the front side of the planting portion (10) is rotatably attached to the body via a floating fulcrum shaft (52) or the like, and travels along the ridge surface (A). Planting part (10) with gauge ring (13)
, And detects the vertical movement of the gauge wheel (13) to automatically control the vertical movement of the body. The gauge wheel () is a sensor for detecting the height of the planting portion (10) above the ground. 13), the planting is adjusted, and the floating range of the planting portion (10) is not shifted from the dead zone width of the planting depth control by changing the planting depth. ) The planting depth control is stabilized, the ridge height adaptation range is widened, and the planting function is easily improved. Further, as shown in FIG. 1, the dead zone width (N) of the elevation control is set within the floating (free elevation) range (H) of the planting portion (10), and the vehicle height adjusting arm (7) is set.
The ascending and descending range of 0) is extremely narrower than the dead zone. The planting section (10) is installed so as to be able to move up and down, and is grounded on the upper surface of the ridge (A) to suppress the covering of the already planted seedlings. Is mounted on the planting part (10), and the height adjustment by the lifting cylinder (29) is automatically performed based on the vertical movement of the gauge wheel (13), and the height adjustment control of the body is performed. The height adjustment arm (70) is provided, and the height adjustment arm (70) is returned by the return force of the spring (73) to return the vehicle height adjustment arm (70) in the vehicle height reduction signal direction by the downward movement of the gauge wheel (13). On the other hand, the roller (72) of the sensor arm (71) abuts on the fulcrum arm (66) due to the upward movement of the gauge wheel (13), forcibly moving the vehicle height adjusting arm (70) in the vehicle height increasing signal direction. (Body lift). The connection point (66a) between the fulcrum arm (66) and the connection rod (68) is configured to change the distance from the support shaft (65) by replacing the pin, and as shown in FIG. Control is performed insensitively at times, and sensitively at long distances.

Further, a pendulum-type rolling sensor (74) is provided in front of the base frame (1), and the sensor (74) is attached to a bearing (75) on the upper surface of the hydraulic unit case (64) so as to be able to swing left and right. At the same time, the upper end base of the sensor (74) is connected to the spool (76) of the rolling valve (63) via the horizontal control arm (77), and the valve (6) is rotated by the left and right swing of the sensor (74).
The spool (76) of (3) is switched to control the operation of the rolling cylinder (30) to support the machine body and the planting section (10) substantially horizontally.
3) and the planting claws (18) are arranged on the rear side of the rear wheel (4),
The planting claw (18) is configured so that the planting depth of the planting claw (18) is appropriately maintained against pitching, rolling, rolling reaction force, etc. of the fuselage, and a loop-shaped handle (19) as shown by an imaginary line in FIG. The left and right widths of the left and right rear wheels (4) and (4) are made larger than the tread, or the handle (19) is attached to the left and right so that the position can be freely changed, and the worker walks in the groove (B) between the ridges (A). The handle (19) can be positioned at the same position. Also, as shown in FIG. 6, a pressure reducing wheel (12) is set by a spring (79) pressure set by a lever (78).
Is made to repress the ridge surface (A).

[0014]

As apparent from the above embodiments, the present invention relates to a sensor (1) for detecting the height of the planting portion (10) with respect to the ground.
3) attached and configured to perform planting adjustment.
By changing the planting depth, the floating range of the planting portion (10) and the dead zone width of the planting depth control do not cause a relative shift, and the planting depth control of the floating planting portion (10) is stabilized, and the ridge height is reduced. Therefore, the adaptation range can be widened and the planting function can be easily improved.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a planting section.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of a traveling unit.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view of a detection unit.

FIG. 7 is a plan view of the same.

[Explanation of symbols]

 (10) Planting part (13) Gauge wheel

Claims (1)

[Claims] 1. A vegetable transplanter comprising a sensor for detecting the height of the planting portion with respect to the ground, and adapted to perform planting adjustment.