JP2550452Y2 - Spare nursery lock for rice transplanter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention provides a seedling lock for a rice transplanter which has a planting part having a seedling rest and a seeding claw, and performs rice transplanting while supplying a spare seedling from the spare seedling to the seedling rest. Related to the device.

[0002]

2. Description of the Related Art As described in, for example, Japanese Utility Model Application No. 2-71889, there is a means for allowing a spare seedling stand to be movable in the front-rear direction centering on the upper part.

[0003]

However, when the spare seedlings of such means are moved in the front-rear direction, the spare seedlings cannot be securely fixed, and the supplementary seedlings need to be supplied or taken out. There were drawbacks such as making it difficult.

[0004]

According to the present invention, an upper portion of a parallel link for supporting a spare seedling is supported on a body so as to be able to swing back and forth through two pivot points, and the spare seedling is supported by the spare seedling. In the spare seedling stand of the rice transplanter configured to be able to move while keeping the horizontal posture in the longitudinal direction of the machine with the spare seedling mounted thereon, a gas spring is interposed between the spare seedling stand and the machine body, and the parallel link is provided. A guide plate that supports the rear part of the lock pin and a collar that supports the tip part are provided on the support plate side that pivotally supports the base, and the lock pin is pushed in an extruded manner to support it, and on the parallel link side A plurality of pin holes are provided on the lock plate side, and the tip of the lock pin is freely disengageable from the pin holes to fix the spare seedling stand at a predetermined moving position. It is intended to provide a nursery stand locking device.

[0005]

In the spare seedling stand according to the present invention, the spare seedling is placed on the spare seedling stand while the seedling remains on the seedling stand, and the parallel link is positioned downward. . The tip of the lock pin of the lock device is fitted into the pin hole on the lock plate side to keep the spare seedling stand in a fixed state.

Next, when the remaining amount of the seedlings on the seedling mounting table becomes small, the lock pin of the lock device is pulled out from the pin hole on the lock plate side by hand, and the lock device is released.

Then, the spare seedling is moved backward, and in this state, the lock pin of the locking device is fitted into the pin hole on the lock plate side to fix the spare seedling.

[0008] Therefore, it is possible to easily take out and replenish the spare seedlings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 is an explanatory side view of a spare seedling stand, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same. In the drawing, reference numeral 1 denotes a traveling vehicle which is a traveling body on which an operator rides; A transmission case 4 is mounted on the rear end of a vehicle body frame 3 on which the transmission case 2 is mounted, and front wheels 6 for paddy fields are supported on both rear sides of the engine 2 via a front axle case 5. , A rear paddle 8 for paddy field traveling is supported via a rear axle case 7.
A spare seedling stand 10 is disposed outside both sides of the hood 9 covering the engine 2, and the axle cases 5, 7 and the like are covered with a body cover 12 forming a step 11, and the body cover above the transmission case 4 is provided. A driver's seat 13 is mounted above the driver's seat 12, and a steering handle 14 is provided in front of the driver's seat 13 and behind the hood 9.

Further, in the figure, reference numeral 15 denotes a planting portion having a seedling mounting table 16 for multiple planting and a plurality of planting claws 17. A rotary case that supports the planting case 20 reciprocally slidably to the left and right via guide rails 18 and 19, and rotates at a constant speed in one direction.
21 is supported by the planting case 20, and a pair of planting cases, which are a pair of planting cases, are symmetrically positioned around the rotation axis of the case 21.
22 and 22 are provided, and planting claws 17 and 17 are attached to the tip of the claw case 22. In addition, a rotating fulcrum shaft 23 is provided on the front side of the planting case 20.
The support frame 24 is provided via a three-point link mechanism 27 including a top link 25 and a lower link 26.
The support frame 24 is connected to the rear side, and the lifting cylinder 28 for raising and lowering the planting section 15 via the link mechanism 27 is moved to the traveling vehicle 1.
The front and rear wheels 6 and 8 are driven and moved at a substantially constant speed, and at the same time, the seedling table 16 is reciprocally slid left and right by two rotations of the rotary case 21 by two planting claws 17 and 17. 2
The plant is constructed so that the seedlings of the plant are taken out and the seedlings are planted continuously.

In the drawing, reference numeral 29 denotes a traveling speed change lever, reference numeral 30 denotes a planting operation lever, reference numeral 31 denotes a main clutch pedal, reference numerals 32 and 32 denote left and right brake pedals, and reference numerals 33 ... floats for paddy leveling.

Also, as shown in FIGS. 1 and 4, there are provided front and rear columns 34, 35 for supporting the spare seedling stand 10, and support columns 38, 37 fixed to front and rear brackets 36, 37 of the body frame 3. The base ends of the columns 34, 35 are removably fitted upright on the receiving shaft portions 38a, 39a of each of the 39 via bolts 40, and the connecting frames 41, which are in the form of a front view, are arranged so as to straddle the upper side of the hood 9. The base end is detachably connected to and fixed to the upper end receiving shaft portion 35a of the rear support 35 via a bolt 40.

As shown in FIG. 5, the support columns 34, 35 have front and rear parallel links 46, 47 for supporting the spare seedling stand 10 in multiple stages via front and rear rods 44, 45 on the inner and outer frames 42, 43, respectively. A parallel link 46,47 is provided on a support plate 48 fixed between the upper portions of the front and rear support columns 34,35.
Are mounted at the same height so as to be able to swing back and forth, and the inner frames 42 provided in upper and lower stages are connected to and supported by the parallel links 46 and 47 via the respective rotating pivots 51 to maintain the spare seedling stand 10 in a horizontal posture. It is configured to be able to move in the front-rear direction in the state where it is made to move.

Further, a guide plate 52 is fixedly provided between the upper and lower centers of the columns 34 and 35, and an arc-shaped guide groove 53 of the guide plate 52 is provided.
In addition, a guide shaft 54 attached to the third inner frame 42 from the upper side is swingably engaged with the shaft 55a substantially at the center of a horizontal frame 55 fixed between the lower ends of the columns 34 and 35. A gas spring 56 having an extending action force is interposed between the guide shafts 54, and when the spare seedling stand 10 in the normal state is stored, the gas spring 56 is set to the minimum contracted state, and the seedling stand is moved by the spring 56. While supporting the weight support of 10, the operation force is reduced by the extension action force when the spare seedling stand 10 is moved in the front-rear direction.

Reference numerals 57a and 57b denote guide rollers provided on the parallel links 46 and 47 for rolling contact with the guide plate 52.

On the other hand, a spare seedling stand is provided on the inner surface of the support plate 48.
A lock device 58 for fixing the position of the lock device 58 is provided, and lock release levers 59 and 60 for unlocking the lock device 58 are provided.
Are provided in two places before and after the seedling stand 10.

The lock device 58 is connected to the front side parallel link.
A lock plate 62 having a plurality of positioning pin holes 61 fixed to the upper end of 46, and a lock arm 65 which is supported by a support plate 48 via a pivot shaft 63 to engage and disengage a lock pin 64 with the pin hole 61. And the release levers 59 and 60 are respectively provided on spare seedling moving operation handles 66 and 67 fixed to the front and rear side surfaces of the parallel links 46 and 47, respectively.
And each release lever 59, 60 is connected by each wire 68, 69,
Release lever 59,6 from any direction before and after spare seedling stand 10
It is configured such that the spare seedling stand 10 can be moved by operating “0”.

In FIG. 5, 58-1 is a lock pin.
A guide plate that supports the rear 64-1 of the 64
Has a base fixed to the support plate 48 while being formed in an L-shape. Reference numeral 58-2 denotes a collar for supporting the distal end portion 64-2 of the lock pin 64, which is directly fixed to the support plate. 65-1 is a connecting pin for connecting the lock arm 65 and the lock pin 64, 65-2 is a winding spring provided between the rotation fulcrum shaft 63 and the lock arm 65, and the lock pin 64 is always pushed out. Energize,
The tip 64-2 of the lock pin 64 is the pin hole 61 on the lock plate 62 side.
So that it can be inserted into

Further, the spare seedling stand 10 can be attached to the outside of the spare seedling stand 10 supported by the parallel links 46 and 47. An engaging shaft for attachment is provided on the outer surface of the frame 43, and a hook fitting for engaging and holding the engaging shaft is fixedly provided on the outer surface of the inner frame 42a of the outer seedling stand 10a at the outer position to integrally support them. It is composed.

In the embodiment of the present invention, the lock device 58 is unlocked by the release levers 59 and 60 when the spare seedling stand 10 is moved. The operation can be performed lightly by the urging force of the spring 56, and the seedling stand 10 can be tilted even when the seedling stand 10 is held at the front seedling supply position or the rear seedling removal position. There is no inconvenience such as the preliminary seedlings slipping down while maintaining the horizontal posture, and in this case, as the lower seedlings 10 gradually move back and forth, the lower seedlings 10 The front and rear ends of the table 10 project to a certain size, so that the work of replenishing and removing the seedlings can be further improved.

Further, in such a moving operation of the spare seedling stand 10, the operator does not change the working position each time, and the seedling replenishing position in front of the seedling stand 10 or the picking out position in the rear of the seedling stand 10 is not required. Can be easily operated from any of
Workability can be improved.

FIGS. 6 and 7 show another embodiment, in which a side marker mounting structure is shown.

In the figure, reference numeral 80 denotes a marker arm for connecting the side marker 81 to the tip, and the base 80-1 is attached to the rear support 39. 82 is a fastening means, which is the same as the marker arm.
80 can be fixed to a state in which it is set so as to protrude in the lateral direction of the body around the column receiver 39, and a state in which it is turned forward and stored around the column receiver 39. Reference numeral 84 denotes a connecting means provided at the distal end of the marker arm 80. The side marker 81 can be turned up and down around a horizontal axis 85 to be fixed in the set state and the stored state.

Therefore, according to the above embodiment, since it is possible to reliably store the spare seedlings substantially in line with the edge thereof, the side markers are hardly caught and do not become an obstacle.

[0025]

According to the present invention, the spare seedling stand is supported by the parallel link so as to be movable while maintaining the horizontal posture in the longitudinal direction of the fuselage, and the base of the parallel link is pivotally supported. On the support plate side, a guide plate that supports the rear end of the lock pin and a collar that supports the tip end are provided, and the lock pin is pushed out and supported in the pin hole of the lock plate provided on the parallel link side while pushing and supporting it. It is a spare nursery lock device of a rice transplanter that can be engaged and disengaged and fixes the spare nursery at a predetermined moving position, so that when the spare seedling is moved to the front side or the rear side, the lock pin is returned. Operation is easy because it is automatically locked.

Further, since the rear and front ends of the lock pin are securely supported, the lock pin is not accidentally damaged.

Further, since the gas spring is interposed between the spare seedling stand and the machine body, the operating force for moving the spare seedling stand in the front-rear direction can be reduced by the extension action force of the gas spring. In addition to this, the gas spring can assist the weight support of the spare seedling stand.
Further, the parallel link can be held auxiliary by the gas spring, and the parallel link can be reliably locked in cooperation with the lock mechanism.

Further, since the parallel link supporting the spare seedling stand is swingably supported on the machine body above the parallel link, when the parallel link is swung when replenishing or taking out the spare seedling, Since the lower seedling stand is always located on the outside (worker side) than the upper seedling stand, the upper seedling stand is in the way when replenishing or removing the seedlings from the lower seedling stand. In addition, the replenishment and removal of the spare seedlings can be easily performed, and the seedling planting operation can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a spare seedling stand;

FIG. 2 is an overall side view of the rice transplanter.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory front view of a spare seedling stand;

FIG. 5 is an explanatory plan view of a spare nursery stand locking device.

FIG. 6 is a side view showing an attached state of a side marker.

FIG. 7 is a plan view of the same.

[Explanation of symbols]

 10 Spare seedling stand 46 Parallel link 47 Parallel link 48 Support plate 58-1 Guide plate 58-2 Collar 61 Pin hole 62 Lock plate 64 Lock pin 64-1 Rear 64-2 Tip

Claims (1)

(57) [Scope of request for utility model registration] A parallel link for supporting a spare seedling stand.
The upper part is supported by the body so as to be able to swing back and forth through two rotation fulcrums, and the spare seedlings are placed on the spare seedling stand 10 and can be moved while maintaining a horizontal posture in the body longitudinal direction. Between the spare nursery 10 and the machine
A gas spring 56 is interposed between the lock plate 64 and a lock pin 64 on the side of the support plate 48 for pivotally supporting the bases of the parallel links 46 and 47.
A guide plate 58-1 for supporting the rear part 64-1 and a collar 58-2 for supporting the tip part 64-2 are provided to support the lock pin 64 by pushing it in an extruded manner, and to provide a parallel link 46. A plurality of pin holes 61 are provided on the side of the lock plate 62 provided on the side, and the leading end portion 64-2 of the lock pin 64 is freely disengageable from the pin hole 61 and the spare seedling stand 10 is fixed at a predetermined moving position. A spare nursery stand locking device for a rice transplanter.