JPH1118531A - Controller of seedling pick up amount in rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject controller capable of cutting a seedling mat to square and improving operability by connecting linked bars controlling the rotation speed of a lateral feeding shaft of a seedling loading stage to a hand lever controlling a longitudinal cut length. SOLUTION: This controller controls a cutting amount of a seedling mat decided by longitudinal and lateral lengths of the seedling mat by connecting linked bars controlling the rotation speed of a lateral feeding shaft (e) of a seedling loading state (d) deciding a lateral cut length of the seedling mat to a hand lever (h) controlling a longitudinal cut length of the seedling mat. As a relation between the longitudinal cut length of the seedling mat and the rotation of the lateral feeding shaft (e) of the seedling loading state (d), the rotation speed of the lateral feeding shaft (e) of the seedling loading stage (d) is large when the longitudinal cut length of the seedling mat is large, and the rotation speed of the lateral feeding shaft (e) of the seedling loading stage (d) is small when the longitudinal cut length of the seedling mat is small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a rice transplanter,
The present invention relates to a device for adjusting the amount of seedlings collected from a seedling mat.

[0002]

2. Description of the Related Art Conventionally, the amount of seedlings taken from a seedling mat in a rice transplanter has been adjusted by adjusting the vertical cutting length of the seedling mat and the feed amount of a lateral feed shaft of the seedling mat mounting table. This was done by operating the hand lever.

[0003]

As in the prior art, if the amount of seedlings taken from the seedling mat was adjusted, the hand levers for vertical and horizontal adjustments were individually operated, respectively.
Even with the same number of used mats, it is difficult to adjust the shape of the small pieces of the cut seedling mat to an ideal square shape because it is rectangular in the vertical direction or rectangular in the horizontal direction Met.

The present invention has been made to solve such a problem. It is an object of the present invention to reduce the cutting amount of the seedling mat in the vertical and horizontal directions by operating one hand lever. It is adjusted so that the desired cut seedling mat piece becomes square.

In order to achieve the above object, the present invention solves the problem by operating the hand lever for adjusting the feed in the vertical direction to adjust the feed in the horizontal direction at the same time. I have.

In other words, the apparatus for controlling the amount of seedlings in a rice transplanter according to the present invention determines the amount of cutting of the seedling mats determined by the vertical and horizontal cutting lengths of the seedling mats and the vertical cutting length of the seedling mats. The hand lever to be adjusted is linked to a connecting rod that adjusts the rotation speed of the lateral feed shaft of the seedling mat mounting table that determines the lateral cutting length of the seedling mat. The relationship between the vertical cut length and the rotation of the feed shaft in the horizontal direction of the seedling mat table is that when the cut length of the vertical seed mat is large, the rotation of the feed shaft in the horizontal direction of the seed mat place is When the cutting speed of the seedling mat in the vertical direction is small, the rotation speed of the feed shaft in the horizontal direction of the seedling mat mounting table is also small.

Further, the connecting rod for adjusting the rotation of the feed shaft in the horizontal direction of the seedling mat mounting table associated with the hand lever for adjusting the vertical cutting length of the seedling mat is provided in the horizontal direction of the seedling mat mounting table. The rotation of the feed shaft of the stepped transmission (for example, high,
This is a configuration that acts to change the traverse amount by middle or low three-stage) or stepless speed change.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for adjusting the amount of seedlings harvested in a rice transplanter according to the present invention will be described with reference to a walking rice transplanter. The same applies to a riding rice transplanter. The power source from the engine mounted on the front of the fuselage is used to drive the wheels through the mission, and through the side frame to the seedling planting case, a part of which is branched to drive the seedling planting claw and the transmission case Through the horizontal reciprocation of the seedling mat table,
Further, at the end of the reciprocation in the horizontal direction, the seedling mat is used for driving a vertical feed belt.

The apparatus for controlling the amount of seedlings collected according to the present invention is one hand that controls the vertical movement of the take-out frame supporting the seedling mat mounting table, ie, the vertical movement and the horizontal movement adjustment of the seedling mat mounting table. This is done with a lever.

That is, with respect to the adjusting lever for adjusting the vertical cutting amount of the seedling mat attached to, for example, the right operating handle of the operating handle of the body, the movement by the rotation of the lever is taken out by the adjusting connecting rod, and the adjustment is performed. The rotation of the connecting rod is transmitted to a transverse feed shaft that reciprocates in the lateral direction of a seedling mat mounting table provided on the seedling mat mounting table via a stepped speed change (for example, three steps of high, middle, and low) or a continuously variable transmission mechanism. It is like that.

[0011] Then, by rotating the cutting adjustment lever in the vertical direction of the seedling mat, the seedling mat mounting base can be moved in the vertical direction with respect to the seedling take-out frame, and the horizontal feed axis of the seedling mat mounting base can be adjusted. The conversion of the rotation speed is performed simultaneously by operating one handle lever.

[0012]

1 and 2 are a side view and a plan view, respectively, of a walking type rice transplanter provided with a device for controlling the amount of seedlings according to the present invention. The power from the engine (1) mounted on the front of the body (a) is branched via the transmission case (2), passes through the hollow side frames (3) and (3) on both sides, and seedling planting case ( 4) and (4), from these seedling planting cases (4) and (4), respectively, a planting claw device (b),
(B). The traveling wheels (6) are driven from the transmission case (2) via the swing case (5).

Operating handles (c), (c) extend rearward from the seedling planting cases (4), (4), and the side frames (3), (3) and the operating handles (c),
Floats (7) and (7) are respectively suspended from the lower part of (c). Both operating handles (c), (c)
Is formed in an obliquely upward and rearwardly inclined shape, and a seedling mat mounting table (d) is supported on the upper surface of the inclined portion, and reciprocates in the left-right and lateral directions.

A transmission case (8) projects from the side of the left seedling planting case (4) to the rear with respect to the traveling direction. A transverse feed shaft (e) for reciprocating the seedling mat mounting table (d) in the left and right directions is provided between the side of (4) and the tip of the support member (9) protruding rearward. Have been. An endless cross-shaped groove (10) is provided on the peripheral surface of the transverse feed shaft (e), and a sliding slider (11) is engaged in the groove (10). Slider (1
The tip (12) of (1) is engaged with an engaging portion (13) provided at the center of the back surface of the seedling mat mounting table (d), and the endless cross-shaped portion thereof is rotated by rotation of the transverse feed shaft (e). The movement of the sliding slider (11) engaged in the groove (10) moves the seedling mat mounting table (d) in the lateral direction.

At the final end of the lateral movement of the seedling mat support (d), the rotating cam (14) is rotated in relation to the transverse feed shaft (e), and the rotation causes the seedling mat support (d) to rotate. )
The rotating cam (15) on the side rotates. By this rotation, the roll (16) provided on the back surface on the side of the seedling mat mounting table (d) rotates. A roll (16 ') similar to the roll (16) is also provided above the rear surface of the seedling mat mounting table (d), and these rolls (16), (16')
Is slightly protruding from the front side of the seedling mat table (d),
These rolls (16) work to support the seedling mats,
Each shaft of (16 ') is openly belted. By the rotation of the roll (16), the seedling mat is fed downward by a fixed amount, that is, in the vertical direction together with the roll (16 ') via the belt.

The seedling mat mounting table (d) is provided with guide rails (17) and (17 ') near and above the lower end thereof, and the guide rail (17) has a corner on its lower surface. A mold support rail (18) is fitted. The seedling mat mounting table (d) in such a state is in the state of being close to the L-shaped take-out frame (f) from which the seedlings are taken out, and the seedling mat mounting table (d) is provided with the transverse feed shaft (e). By the rotation, the guide rail (17) slides on the square support rail (18) while cutting the seedling mat while cutting the seedling mat along the take-out frame (f). Both ends of the rectangular support rail (18) are supported at the position of a horizontal portion below the operation handles (c) and (c).

The support device (g) for the operation handles (c) and (c) on both sides of the rectangular support rail (18) has a structure as shown in FIGS.
That is, the operation handle (c) has a plate-shaped bracket (19) on its upper surface side in the traveling direction of the body (a).
A support plate (20) is provided inside the bracket (19), and a support arm (2) is provided outside the bracket (19).
1) is attached. Bolts (23) and (23) implanted in the support arm (21) are inserted through the elongated holes (22) of the bracket (19) and the support plate (20), respectively, through a spring. It is fixed with nuts. The tip of the support arm (21) is in contact with the rectangular support rail (18) via the support member (24). The plate-shaped bracket (19) and the support plate (20) are each provided with a recess (25) in an overlapping state.

A hand lever (h) for moving the seedling mat mounting table (d) in the vertical direction, that is, in the vertical direction, is provided on the operation handle (c) as shown in FIG. The distal end of the hand lever (h) is rotatably provided with its forked portion fitted to a pin (26) protruding from the operation handle (c), as shown in FIG. h)
Is rotated in a longitudinal groove of an arc-shaped guide plate (27) protruding from the operation handle (c), and is locked when rotated by a certain angle. The end of the hand lever (h)
8) is provided, and a vertical link (29) is connected to the front end thereof in a downward direction.

An operating link (30) is connected to the lower end of the vertical link (29) in the horizontal direction. As shown in FIG. 5, the operating link (30) has an operating shaft (31) projecting inward through the support arm (21) at the distal end side. , Plate-shaped brackets (19) provided on operation handles (c), (c) on both sides
A rotation shaft (32) is provided between the rotation shaft (19) and the rotation shaft (32). The rotation shaft (32) has its base welded to a portion of the operation shaft (31) projecting from the support plate (20). Have been. The pivot shaft (32) has brackets (19), (19), support plates (20), (2) on both sides thereof.
0) support arm (21) through recess (25),
It is welded to the crankshafts (33) and (33) implanted in (21).

Accordingly, the rotation of the hand lever (h) causes the horizontal link (28), the vertical link (29), the operation link (30), the operation shaft (31), the rotation shaft (32), and the crank shaft (33). ), The support arms (21) and (21) are
Bolts (23), (23) are used as guides to form long holes (22),
Move along (22). By this movement, the support member (24) fixed to the tip of the support arm (21) moves up and down, and is guided by the guide rail (17), that is, the seedling mat mounting table, via the square support rail (18) fitted thereto. (D) is moved in the vertical direction, that is, in the vertical direction.

At this time, the tip of the sliding slider (11) which moves in the lateral direction by engaging with the endless cross groove (10) on the peripheral surface of the lateral feed shaft (e) of the seedling mat mounting table (d). Department (1
2) is engaged with an engaging portion (13) provided on the back surface of the seedling mat mounting table (d), and this engaging portion (13) is in the vertical direction of the seedling mat mounting table (d). It is long so that it does not disengage during movement. In order to stabilize the lateral movement of the seedling mat mounting table (d), the seedling mat mounting table (d)
A guide rail (17 ') provided above the back surface of the trochanter (3') protruded from the operation handles (c) and (c).
4) and (34) are fitted and guided, but also in this case, the guide does not interfere with the vertical movement of the seedling mat mounting table (d). I have.

Next, the transmission to the transverse feed shaft (b) via the transmission case (8) is performed by the following configuration. The transmission from the seedling planting case (4) to the transverse feed shaft (e) via the transmission case (8) is performed by the seedling planting case (4).
A chain is interposed between the sprocket in the inside and the sprocket of the intermediate shaft provided at the bent portion of the transmission case (8), and the other sprocket of this intermediate shaft and the sprocket (35) of the transmission shaft (i). It is designed to be driven.

The gears (36) and (37) transmit power between the transmission shaft (i) and the intermediate transmission shaft (j). The transmission shaft (j) has a long groove (3
8), the shifter device (k) slides along the long groove (38), and the locking portion (39) at the tip of the shifter device (k) is connected to the shift shaft (39). j) small, medium and large gears (40), (41),
The gear is engaged with the groove of one of the gears of (42), and the gear rotates together with the speed change shaft (j). A concave ring (43) is fitted in the base of the shifter device (k), and an operating ring (44) is fitted in the concave portion of the ring (43).

The concave ring (43) is provided with a transmission shaft (j).
Rotates with the shifter device (k) fitted in the long groove (38), but the actuation ring (44) fitted in the concave ring (48) does not rotate. This operating ring (4
4) is linked to an operating rod (45) which is branched and linked from the outside of the transmission case (8).
Is linked to a projection (29 ') provided on a vertical link (29) of the hand lever (h).
Is moved in the vertical direction, and the operating rod (45) is moved in the direction of the transmission shaft (j). The axial movement of the operating rod (45) causes the shifter device (k) to move.
Moves in the axial direction, and the loose fitting gears (40), (41),
The rotation is transmitted by selecting one of (42).

The loose fitting gear (40) of the variable axis (j),
(41), (42) are gears (46), (47), fixed to the base side (e ') of the transverse feed shaft (e).
(48) Each meshes. Therefore, the loosely fitted gears (40), (41), (42) are formed by the shifter device (k).
Is selected, the rotation is transmitted to the selected gear, for example, the gear (46) meshing with the gear (40).
The traverse shaft (e) rotated by any one of the gears (46), (47), and (48) has a different rotation speed depending on the gear ratio of the meshed gears.

The above description relates to the device (m) for rotating the transverse feed shaft (e) of the seedling mat mounting table (d) by three steps of low, medium and high speeds. This is a device (n) that performs gear shifting. As shown in FIG. 7, a continuously variable transmission (n) is provided between the transmission shaft (i) and the base side (e ') of the transverse feed shaft (e). In this continuously variable transmission (n), a split pulley (49) and a cam device (50) are provided on a transmission shaft (i) driven by a sprocket (35), and the cam device (50) is fixed. Cam (50 ')
On the other hand, when the rotating cam (50 ") is rotated by the cam lever (51), the movable pulley (49 ') of the split pulley (49) is moved. ), A split pulley (52) is provided at a position facing the split pulley (49), and the movable pulley (5) of the split pulley (52).
Spring (53) between 2 ') and transmission case (8)
Is provided, and a V-belt (54) is hung between the split pulley (49) and the split pulley (52).

The continuously variable transmission (n) having such a structure is as follows.
By the operation of the hand lever (h) attached to the operation handle (c), the operating rod (45) linked to the hand lever (h) is connected to the cam lever (51), and the cam lever (51) Is rotated, the rotating cam (50 ") is pushed by the fixed cam (50 ') to move in the axial direction, and the distance between the moving pulley (49') and the rotating pulley (49") is increased. Narrow. As a result, the V belt (54) moves in the direction of the outer periphery of the split pulley (49).
On the 2) side, the moving pulley (52 ') is pressed against the spring (53) and cuts into the shaft side of the split pulley (52), whereby the transverse feed shaft (e) is steplessly changed. Shift gears.

As described above, the apparatus for adjusting the amount of seedlings in the rice transplanter of the present invention rotates the operating link (30) via the vertical link (29) by operating the hand lever (h). The support arm (21) is rotated by the crankshaft (33) of the operation link (30), and the rotation causes the support member (24) at the tip of the support arm (21) to move up and down. A guide rail (17) provided on a seedling mat mounting table (d) fitted to the rectangular support rail (18) fitted with the (24);
Subsequently, the seedling mat mounting table (d) is moved up and down. As a result, the vertical cut length of the seedling mat is adjusted.

On the other hand, the operation of the hand lever (h) is performed by a shifter device (k) connected to an operating rod (45) linked to a branch projection (29 ') of a vertical link (29) linked thereto. Of the continuously variable transmission (n) via the three-stage transmission (m) by the action of the operating ring (44) or by the operation of the cam device (50) to which the operating rod (45) is connected.
, The rotation of the transverse feed shaft (e) is shifted, and the lateral cutting length of the seedling mat is adjusted by changing the feed amount of the seedling mat mounting table (d).

The cutting of the seedling mat in the horizontal direction is performed even when the opening through which the planting nail of the seedling removing frame (f) passes and the planting nail are always constant. The amount of the seedling mat to be cut out depends on the rotation speed of the horizontal feed shaft (e) of the seedling mat mounting table (d). It is determined by the lateral feed rate.

In the present invention, by operating one hand lever (d), the vertical cut amount and the horizontal cut amount of the seedling mat are simultaneously adjusted, and the cut amount is large in the vertical direction. At that time, the cut amount in the horizontal direction is large, and conversely, when the vertical direction is small, the horizontal direction is also small, and the cut piece of the seedling mat is considered to be close to the forward direction.

[0032]

According to the device for adjusting the amount of seedlings in a rice transplanter according to the present invention, a hand lever provided on an operation handle is operated to move the seedling mat mounting table in the vertical direction. The cutting length of the seedling mat in the vertical direction is adjusted, and the rotation of the feed shaft in the horizontal direction of the seedling mat mounting table is changed by the operating rod that branches off and is linked from the hand lever, and the horizontal direction of the seedling mat is adjusted. By changing the feed amount and adjusting the horizontal cutting length by operating one hand lever, the two vertical and horizontal hand levers are adjusted separately as in the past. There is no hassle, the cut seedling mat is always square, and the planting timing does not get out of order. But Always it is possible to ideal feed.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter equipped with the device of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a side view of a main part.

FIG. 4 is a side view of a hand lever portion.

FIG. 5 is an explanatory drawing of a main part viewed from the back side.

FIG. 6 is a sectional view of a three-speed transmission unit.

FIG. 7 is a sectional view of an infinite transmission unit;

[Explanation of symbols]

 a Airframe b Planting claw device c Operation handle d Seedling mat mounting stand e Lateral feed shaft f Seedling take-out frame g Supporting device h Hand lever i Transmission shaft j Shift shaft k Shifter device m Three-speed transmission device n Continuously variable transmission device 3 Hollow Side frame 4 Planting case 6 Running wheel 8 Transmission case 10 Endless cross groove 11 Sliding slider 12 Tip 13 Engaging part 14, 15 Rotating cam 16, 16 'Roll 17 Guide rail 18 Square support rail 19 Plate-shaped Bracket 20 Support plate 21 Support arm 22 Slot 23 Bolt 24 Support member 25 Depressed portion 27 Guide plate 28 Horizontal link 29 Vertical link 29 'Branch projection 30 Working link 31 Working shaft 32 Rotating shaft 33 Crankshaft 34 Roller 35 Sprocket 36, 37 gear 38 long groove 39 locking part 40, 41, 42 gear 43 concave phosphorus 44 the actuating ring 45 actuating rod 46, 47, 48 gear 49 percent pulley 50 cam device 51 the cam lever 52 percent pulley 53 spring 54 V belt

Claims (3)

[Claims] 1. A method of cutting a seedling mat in a horizontal direction with respect to a hand lever for adjusting a cutting length of the seedling mat in a vertical direction, the amount being determined by a cutting length in a vertical direction and a horizontal direction of the seedling mat. An apparatus for adjusting the amount of seedlings to be harvested in a rice transplanter, wherein a connecting rod for adjusting a rotation speed of a feed shaft in a lateral direction of a seedling mat mounting table for determining a length is linked. 2. The relationship between the cutting length of the seedling mat in the vertical direction and the rotation of the feed shaft in the horizontal direction of the seedling mat mounting table is such that the cutting length of the seedling mat is large when the cutting length of the seedling mat is large. The rotation speed of the feed shaft in the horizontal direction of the mounting table is also high, and when the cut length of the seedling mat in the vertical direction is small, the rotation speed of the horizontal feed shaft of the seedling mat mounting table is also low. The apparatus for adjusting the amount of seedlings harvested in a rice transplanter according to claim 1, characterized in that: 3. A connecting rod for adjusting a rotation speed of a feed shaft in a lateral direction of a seedling mat mounting table associated with a hand lever for adjusting a cutting length of the seedling mat in a vertical direction is provided on a side of the seedling mat mounting table. The direction of rotation of the feed shaft is stepped (eg, high, medium,
2. The apparatus for adjusting the amount of seedlings harvested in a rice transplanter according to claim 1, which has an effect of changing the amount of traversing by low speed (3 steps) or continuously variable transmission. 3.