JP2546676Y2 - Seedling holding device for rush planting machine - 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 holding device of a rush planter for planting rush seedlings on a rice field.

[0002]

2. Description of the Related Art Conventionally, a sprouts of a sprouts portion of a sprouts portion of a sprouts portion of a sprouts portion of a sprouts portion of a sprouts portion connected in a belt shape is adhered from both sides with a paper adhesive tape or the like at the end of the sprouts. There has been proposed a rush planting machine in which planted seedlings are cut at a time, and the planted seedlings are sandwiched between planting claws which move up and down in a loop-like rotational locus and are planted on a rice field.

[0003]

However, the band-shaped seedling used in the rush planting machine as described above is different from a mat-shaped rice seedling in which the roots are grouped into a block shape by the floor soil, and the root is the floor. Grass seedlings that are separated from the soil and are independent from each other in a root-washing state are simply connected in a weeping state with a paper adhesive tape. In particular, when the plant is cut into planted seedlings one by one at the feeding end side of the band-shaped seedling, the clamping action by the adhesive tape is loosened and the cut surface may be uneven, so that the planted seedling is transferred to the planting nail. There is a problem in that the seedling posture is disturbed, and the pinching performance of the planting claw in which the seedling posture is disturbed is deteriorated, and the seedling portion may fall apart or fall down before being pushed and planted on the rice field. In particular, there is a disadvantage that the holding position of the planted seedlings is disturbed by the influence of the wind, and once the seedlings are broken or fall down, the planting posture with respect to the rice field is disturbed, and inevitably the lodging seedlings and floating seedlings are inevitable. And the accuracy of planting is deteriorated. In rush seedlings, the quality of planting (whether it grows well) can be determined immediately after planting and can be determined about 2 months after planting.
At the time of planting seedlings, it is necessary to keep the planted seedlings in orderly stand-by posture without dispersing them and to ensure that the planted seedlings are transferred to the planting claws. In particular, rush seedlings are different from rice seedlings in that the stalks are less resistant to mud, and there is a drawback in that if mud adheres to the stalks at the time of planting, they will not grow, and the quality of planting depends on cropping and quality. It depends directly.

[0004]

SUMMARY OF THE INVENTION The present invention has been made based on the above-mentioned situation, and is intended to extend the seedlings from the end of the feeding of the band-shaped seedlings formed by connecting rush seedlings. A bifurcated planting claw that moves up and down in a loop-shaped rotation locus R is arranged in the front direction, and the planting claw sandwiches the seedlings one by one at the end of the feeding of the band-shaped seedlings and plants them on the rice field. In the rush planter that is attached, an upper-stage nipping guide and a lower-stage nipping guide for respectively holding the upper and lower portions of the seedling stem from the left and right sides are provided on the feed terminal side of the band-shaped seedling, and the upper and lower nipping guides are provided. A middle-stage seedling receiver for receiving the seedling stem portion of the feeding terminal edge is provided therebetween, and the standby posture of the planted seedling to be inherited by the planting claws is kept constant by the upper and lower clamping guides and the middle seedling receiver. The gist is that you have done it.

[0005]

[Function] The stem portion of the planted seedling waiting for the penetration of the planting claw at the end of the feeding is clamped in two upper and lower stages by the upper clamping guide and the lower clamping guide, and the planted seedling falls downward. Is prevented by the middle seedling receiving, so that the standing posture of the planted seedlings that are about to be inherited by the planting nails is always kept in an orderly and proper posture without stalks of the stems, and as a result, the seedlings by the planting nails The holding posture can be made constant, and the planting posture with respect to the rice field can be stabilized.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to an embodiment shown in the drawings. The drawing illustrates an example in which a rush planting machine P is mounted via a lifting link mechanism 2 behind a traveling unit (the machine) 1 of a riding rice transplanter. The grass planting machine P has a seedling table 3,
A planting section 7 including a drive case 4, a planting rod 5, a float 6 for sliding on a rice field, and the like is provided. Grass seedlings placed on the seedling mounting table 3 are held by the planting rod 5 one by one. It is designed to be continuously planted on rice fields. A seedling replenishing section 8 for detachably mounting an auxiliary seedling box 8a is continuously provided on the inclined upper end side of the seedling mounting table 3, and the stem section a is cut to a predetermined length in the auxiliary seedling box 8a. A band-shaped rush seedling in which the stem near the root b is interleaved (taping) with paper adhesive tape 9 from both sides and the tape 9 is wound around from outside with a thread 9a. (Strip-shaped seedlings) 10 are loaded, and the strip-shaped seedlings 10 are bridged between pulleys 13 and 14 of pivots between partition plates 11 and 12 assembled on the seedling mounting table 3 corresponding to each planting strip. The left and right pair of upper conveying belts 15 are sequentially fed downward in a laid state toward the lower side of the inclination of the seedling mounting table 3, and a pair of lower conveying belts 16 for raising seedlings is provided at a middle portion in the feeding direction at a middle portion in the stem direction. Is transported while being pinched, and in the transporting process, the band-shaped seedling 10 is turned downward from the lying down position to the root b. The plant is transformed into a standing posture, and the seedling cutting mechanism 18 is provided at the feeding end portion 17 so that the band-shaped seedling 10 comes close to the rotation locus of a planting claw described later and is provided in front of the band-shaped seedling feeding direction end portion in the feeding direction. The planted seedlings are cut one by one, and the cut planted seedlings are clamped by the planting claws 19 of the rotating planting rod 5 and are continuously planted on the rice field. The planting claw 19 is a bifurcated fixed claw having an opening 19a, and always moves up and down while drawing a loop-shaped rotation locus R, and is cut off from the band-shaped seedling 10 on the upper side of the rotation locus R. The planted seedlings are sandwiched and are pushed and planted on the rice field with a pushing fork 19b on the lower side. However, the forked fixed claws may be rod-shaped claws. Numeral 20 denotes a gutter-shaped seedling root guide fixed on the seedling mounting table 3. 21 is a tension roller, 22 and 22a are pulleys, and 23 is a transmission case. Numeral 24 denotes a seedling presser. The seedling presser 24 is transported by an L-shaped rod 24a supported by a bearing portion 12a provided on the partition plate 12 so as to be able to move up and down.
The presser rod 24b is connected integrally with the seedling presser 2
4 is urged by an urging spring 25 in a direction to press the lower stem portion of the rush 10 from above. 26 is a drive shaft of the upper conveyor belt, 27 is a drive shaft of the lower conveyor belt, 27a,
Reference numeral 27b denotes an auxiliary pulley of the lower transport belt 27.

[0007] The feeding end portion 17 of the band-shaped seedling 10 is configured as follows. That is, a pair of U-shaped pulley bearing frames 29 are provided opposite to each other on a pair of left and right side plates 28 erected on the seedling mounting table 3, and rubber shafts are formed on both upper and lower projecting ends of a shaft 30 a to which the pulley 30 is fixed. Each of the feeding wheels 31 is fixed, and on the side plate 28, an elastic thin rod-shaped upper holding guide 32 for guiding while holding the upper side of the seedling from the left and right, a middle seedling receiver 33 for receiving the leading end edge of the middle side, a seedling. Each of the base ends of the leaf spring lower holding guides 34 for guiding and guiding while holding the lower stem from the left and right is attached to each of the mounting bolts 32a,
It is fixed at 33a and 34a. That is, as shown in FIG. 4 and FIG. 7, the upper holding guide 32 is located immediately below the facing surface of the upper feeding wheel 31, the lower holding guide 34 is located directly above the facing surface of the lower feeding wheel 31, and the middle seedling receiver 33 is placed there. The seedling receiving portion is disposed so as to be located in front of the upper and lower feeding wheels 31 in the seedling feeding direction, respectively, and is cut from the band-shaped seedling 10 by the cutting mechanism 18 by the upper and lower clamping guides 32 and 34 and the middle seedling receiver 33. After that, the waiting posture of the planted seedling until it is inherited by the planting claws 19 is kept in a regular and orderly posture. The tip of the lower holding guide 34 projects forward from the seedling feeding end in the seedling feeding direction. The projecting end of the lower holding guide 34 faces a position above the rotation locus R of the planting claw 19 and is planted. The rotation locus R of the planting claws 19 and the lower holding guide 34 are wrapped in a plan view so that the forked opening 19a of the claw 19 passes through the projecting end side of the lower holding guide 34 from right and left. Incidentally, the seedling cutting mechanism 18 is composed of a cutter 35 and a receiving seat 36 which intermittently rotate reciprocally around fulcrum shafts 35b and 36b.
The cutter 35 and the seat 36 are provided integrally with plate-shaped seedling holding guides 35a and 36a which are located on both left and right sides of the root of the cut planted seedling and prevent the seedlings from being scattered. The cutter 35 and the receiving seat 36 are rotated in the directions approaching and moving away from each other about the fulcrum shafts 35b and 36b, respectively, in synchronization with the feeding operation of the band-shaped seedling 10, the rotation of the planting claws 19, and the like. The tape 9 portion of the band-shaped seedling 10 is cut one by one from the feeding tip side, and the lower part (root side) of the planted seedling after cutting is the seedling holding guide 35.
The a and 36a are arranged so as to wait for the insertion and pinching action of the planting claws 19 while being attached and held from both left and right sides. 3
Reference numeral 7 denotes a space formed in a space between the support arm 35b of the cutter 35 and the support arm 36b of the seat 36.
In this embodiment, the cutter 35 and the receiving seat 36 are configured to be rotatable by scissors.
May be configured to reciprocate linearly (reciprocating motion). Numeral 38 denotes a shooter provided along the descending locus of the planting claw 19, and the shooter 38 guides and guides the planting seedlings sandwiched between the planting claws 19, and includes a bracket 38a or the like. It is fixed to.

Numeral 39 denotes a seedling receiving plate. The seedling receiving plate 39 is provided in front and rear of the seedling cutting mechanism 18 in the vicinity of the root portion b of the seedling. The seedling receiving plate 39 is fitted and fixed to the bottom plate of the seedling guide 20 whose rear end is fixed to the seedling mounting table 3 and the front side is the cutter support arm 35.
b and the seat support arm 36b are extended forward through a space portion 37 formed in the space between the opposing support arms 36b. The front end of the extension is close to the rotation locus R in the downward stroke of the planting claw 19. Let me do it. In this embodiment, the seedling receiving plate 39 is formed integrally with the shooter 38.

In the above configuration, when the planting claws 19 enter the descending stroke from the ascending stroke on the rotation locus R, the cutter 35 and the receiving seat 36 of the seedling cutting mechanism 18 operate in the approaching direction, respectively, and the belt-shaped seedling 10 is extended. Planted seedlings are cut one by one from the tip. 6 and 7, the cut planted seedlings are clamped by the bifurcated openings 19a of the planting claws 19 that have entered from the front in the seedling unwinding direction in a substantially horizontal posture. The extrusion fork 19b operates to extrude and plant on the rice field. By the way, the stem portion a of the planted seedling waiting for the entry of the planting claw 19 at the feeding end side is clamped by the upper clamping guide 32 and the lower clamping guide 34 in two vertical stages from the left and right with an appropriate elastic force. Since the downward displacement of the planted seedlings is prevented by the middle seedling receiver 33, the waiting posture of the planted seedlings to be inherited by the planting claws 19 is such that the stems of the planting claws 19 are not displaced. As a result of being kept in an orderly and proper posture almost in parallel with the nail trajectory at the start end side of the descending stroke, when the planting nail 19 enters, the stalk a is pierced at the tip of the nail or a bent-down seedling is generated. The inconvenience is eliminated, and the entire planted seedling of one plant is securely bitten into the bifurcated portion 19a without the planted seedling protruding from the bifurcated portion 19a of the planting claw 19. Therefore, the holding posture of the seedlings by the planting claws 19 can be fixed, and the seedlings can be planted in a substantially upright appropriate posture without causing poor planting such as lodging seedlings and floating seedlings.

[0010] Since the present invention is constructed as described above, the stem portion of the planted seedling waiting for the penetration of the planting claw at the feeding end side is vertically moved by the upper and lower holding guides and the lower and lower holding guides.
While being held between the stages, the downward displacement of the planted seedlings can be prevented by the middle-stage middle-stage seedling receiver, so the standby posture of the planted seedlings that are going to be inherited by the planting claws is always without dislocation of the stem parts As a result of being kept in a proper and proper posture, the posture of holding the seedlings by the planting claws can be made constant, and the planting posture with respect to the rice field can be stabilized.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a rush planter is mounted on a traveling section of a riding rice transplanter.

FIG. 2 is a partially cutaway perspective view of a seedling mounting table.

FIG. 3 is a side view of the grass planting machine.

FIG. 4 is a plan view of a leading end portion of a band-shaped grass seedling.

FIG. 5 is a perspective view of a lower holding guide.

FIG. 6 is a side view of a main part.

FIG. 7 is a side view of a main part.

FIG. 8 is a front view of a main part and a cutting mechanism.

FIG. 9 is a plan view showing the operation of the cutting mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Band-shaped rush seedling (band-shaped seedling) 18 Cutting mechanism 19 Planting claw 19a Bifurcated part 32 Upper-stage pinching guide 33 Middle-stage seedling receiving 34 Lower-stage pinching guide a Seedling stem R Rotation locus of planting claw

Claims (1)

(57) [Scope of request for utility model registration] 1. A loop-shaped rotation locus R ahead of a terminating end of a strip-shaped seedling formed by connecting rush seedlings in a strip shape.
In a grass planting machine, a bifurcated planting claw that moves up and down by drawing is arranged, and the planting claw sandwiches the seedling one plant at a time at the end of feeding of the band-shaped seedling and plants it on the rice field. An upper-stage nipping guide and a lower-stage nipping guide for holding the upper and lower portions of the seedling portion from the left and right, respectively, on the feeding end side of the band-shaped seedling, and the seedling portion of the feeding end edge between these upper and lower holding guides. A middle-stage seedling receiver for receiving is provided, and the standby posture of the planted seedling inherited by the planting claw is configured to be kept constant by the upper and lower clamping guides and the middle-stage seedling receiver. Machine seedling holding device.