JP3966843B2 - Ride type rice transplanter - Google Patents

Description

  The present invention relates to a riding type rice transplanter provided with a supply device for supplying medicine (insecticide, fungicide, etc.) or fertilizer from above to seedlings placed on the seedling surface.

In a riding type rice transplanter, for example, as disclosed in Patent Document 1, a support member (27 in FIGS. 2, 3, and 4 of Patent Document 1) is used as a seedling stand (FIGS. 1, 2, and 4 of Patent Document 1). 3, 4) is supported so as to be placed over the seedling surface (14 a in FIG. 3 of Patent Document 1) over the upper side, and a feeding device (FIG. 1, 2, 3, 4 of Patent Document 1). 30) is provided so as to be reciprocally movable along the support member, and drive mechanism for reciprocating the supply device along the support member (40, 44 in FIGS. 1, 2, 3, and 4 of Patent Document 1). There is something with.
Thereby, a chemical | medical agent or a fertilizer is supplied from the upper direction to the seedling mounted on the seedling stand from a supply apparatus, a supply apparatus reciprocatingly moving along a support member.

Japanese Patent Laid-Open No. 2003-52211 (FIGS. 1, 2, 3, and 4)

  When the riding device is equipped with a supply device, a support member, and a drive mechanism as in Patent Document 1, for example, in a seedling platform having a large width such as an 8-row model or a 10-row model, the entire width of the seedling platform is set. If a long support member is provided, it takes time for the supply device to move from the right end of the support member to the left end (from the left end to the right end). It may be difficult to evenly supply the medicine or fertilizer (for example, when the feeding device starts moving from the right end of the support member to the left end while feeding the medicine or fertilizer, the feeding device supports If the seedling placed on the seedling table by the vertical feed mechanism has been sent down many times before reaching the left end of the member, the seedling that is not supplied with chemicals or fertilizer in the vicinity of the left end of the support member Part may occur). In addition, when a long support member that extends over the entire width of the seedling table is provided, anxiety is caused in terms of strength of the support member.

  In the riding type rice transplanter, the present invention includes a feeding device, a support member, and a drive mechanism. For example, even in a seedling table having a large width such as an eight-row type or a ten-row type, a drug is applied to the seedling placed on the seedling bed Or it aims at comprising so that fertilizer may be supplied appropriately.

[I]
(Constitution)
The first feature of the present invention is a riding type provided with a seedling platform having a large number of seedling surfaces, and provided with planting arms for taking out the seedlings from the seedling surfaces and planting them on the rice field corresponding to each of the seedling surfaces. The rice transplanter is configured as follows.
A right support member supported by the seedling platform so as to be disposed over the upper surface of the predetermined number of seedlings on the right, and a right supply device provided to be reciprocally movable along the right support member; A right drive mechanism that reciprocates the right supply device along the right support member. A left support member supported by the seedling platform so as to be arranged over the predetermined number of seedling surfaces on the left, and a left supply device provided to be reciprocally movable along the left support member; And a left drive mechanism that reciprocates the left supply device along the left support member. The right and left support members are arranged so that one of the right and left support members is positioned on the front side in plan view and the other of the right and left support members is positioned on the rear side in plan view. The right and left supply devices are configured to supply medicine or fertilizer from above to the seedlings placed on a predetermined number of seedling surfaces on the right and left while reciprocating along the right and left support members. .

(Function)
According to the first aspect of the present invention, the right and left support members are supported by the seedling platform so as to be arranged over the predetermined number of seedling surfaces on the right and left, and the right and left supports are supported. The right and left supply devices are provided on the member so as to be reciprocally movable, and right and left drive mechanisms for reciprocating the right and left supply devices along the right and left support members are provided. The drug or fertilizer is supplied from the right supply device to the seedlings placed on the number of seedling surfaces, and the drug or fertilizer from the left supply device to the seedlings placed on the predetermined number of seedlings on the left Fertilizer is supplied.

Thus, according to the first feature of the present invention, the right and left feeding devices do not reciprocate over the entire width of the seedling platform (since they reciprocate over a predetermined number of seedling surfaces on the right and left). The right and left feeding devices reach relatively quickly from the right end to the left end (left end to right end) of the right and left support members. Therefore, for example, when the right supply device starts to move from the right end portion of the right support member to the left end portion while supplying the drug or fertilizer, the right supply device reaches the left end portion of the right support member until the right supply device reaches the left end portion. It is difficult for the seedlings placed on the seedling table to be sent down many times by the feeding mechanism, and the drug or fertilizer is evenly distributed on the seedlings placed on the seedling table. It becomes easy to be supplied.
According to the first feature of the present invention, the right and left support members are not necessary because the support members are divided into right and left support members rather than having a single long support member extending over the entire width of the seedling platform. It will not be long.

According to the first feature of the present invention, the right and left support members are arranged in the left-right direction, but one of the right and left support members is located on the front side in plan view, and the right and left support members The right and left support members are arranged so that the other of the support members is located on the rear side in plan view.
Thus, according to the first feature of the present invention, even if the left end portion of the right support member and the right end portion of the left support member come close to each other, the right supply device is left at the left end of the right support member. When the left supply device is positioned at the right end of the left support member, the right supply device does not come into contact with the right end portion of the left support member. Does not contact the left end of the right support member.

(The invention's effect)
According to the first feature of the present invention, in the riding type rice transplanter, the right and left feeding devices, the right and left support members, and the right and left drive mechanisms are provided, so that the seedling placed on the seedling platform is provided. The drug or fertilizer can be easily supplied evenly, and the supply performance of the drug or fertilizer to the seedlings placed on the seedling table can be improved. Since the right and left support members do not become unnecessarily long, the anxiety in terms of the strength of the right and left support members could be eliminated.

  According to the first feature of the present invention, the right supply device does not contact the right end of the left support member, and the left supply device does not contact the left end of the right support member. And the supply device on the left reciprocates without trouble, and the supply performance of the medicine or fertilizer to the seedlings placed on the seedling platform was improved.

[II]
(Constitution)
The second feature of the present invention resides in the following configuration in the riding rice transplanter of the first feature of the present invention.
The left end of the right support member is positioned to the left of the position of the right end of the left support member, and the right end of the left support member is positioned to the right of the position of the left end of the right support member Configure.

(Function)
According to the second feature of the present invention, the “action” described in the preceding item [I] is provided in the same manner as the first feature of the present invention, and in addition to this, the following “action” is provided.
According to the second feature of the present invention, when the right supply device is located at the left end of the right support member, the right supply device slightly enters above the seedling surface in the range of the left support member. When the left supply device is positioned at the right end of the left support member, the left supply device slightly enters above the seedling surface in the range of the right support member. . Thus, according to the second feature of the present invention, it is less likely that a seedling portion to which no medicine or fertilizer is supplied is generated in the vicinity of the left end portion of the right support member and the right end portion of the left support member.

(The invention's effect)
According to the second feature of the present invention, the “effect of the invention” described in the preceding item [I] is provided in the same manner as the first feature of the present invention. In addition, the following “effect of the invention” is provided. ing.
According to the second feature of the present invention, it is less likely that a seedling portion to which no medicine or fertilizer is supplied is generated in the vicinity of the left end portion of the right support member and the right end portion of the left support member. The supply performance of chemicals or fertilizers to the seedlings placed on the plant could be improved.

[III]
(Constitution)
The third feature of the present invention resides in the following configuration in the riding type rice transplanter of the first or second feature of the present invention.
A right drive mechanism is provided at the right end of the right support member, and a left drive mechanism is provided at the left end of the left support member.

(Function)
According to the third feature of the present invention, the “action” described in the preceding item [I] [II] is provided in the same manner as the first or second feature of the present invention. In addition, the following “action” is provided. It has.
According to the third aspect of the present invention, since the right and left drive mechanisms are arranged apart from each other, the right and left support members are appropriately arranged without causing the right and left drive mechanisms to interfere with each other. can do.

(The invention's effect)
According to the third feature of the present invention, the “effect of the invention” described in the preceding paragraphs [I] and [II] is provided in the same manner as the first or second feature of the present invention. The effect of the invention is provided.
According to the third aspect of the present invention, the right and left support members can be appropriately arranged without causing the right and left drive mechanisms to interfere with each other, and the right and left weight balance, structure and arrangement can be improved. It became advantageous in terms.

[IV]
(Constitution)
A fourth feature of the present invention resides in the following configuration in any one of the riding rice transplanters of the first to third features of the present invention.
When the right supply device is located at the right end of the right support member, the left supply device is located at the right end of the left support member, and the right supply device is located at the left end of the right support member. In this case, the right and left supply devices are configured to be reciprocated so that the left supply device is positioned at the left end of the left support member.

(Function)
According to the 4th characteristic of this invention, it is equipped with "action" of previous clause [I]-[III] similarly to any one of the 1st-3rd characteristics of this invention, In addition to this, It has the following “actions”.
For example, when the right supply device is positioned at the left end of the right support member and the left supply device is positioned at the right end of the left support member at the same time, the right and left supply devices are Since they are in a state of being close to each other, a portion of a seedling to which a larger amount of medicine or fertilizer is supplied than usual is generated in the vicinity of the left end portion of the right support member and the right end portion of the left support member.

  According to the fourth aspect of the present invention, when the right supply device is located at the right end of the right support member, the left supply device is located at the right end of the left support member, and the right supply device is right When the left and right supply devices are positioned at the left end of the left support member, the right and left supply devices are reciprocated so that the left supply device is positioned at the left end of the left support member. Are driven in a reciprocating manner at a distance from each other without approaching each other.

(The invention's effect)
According to the fourth feature of the present invention, the “effect of the invention” described in the preceding paragraphs [I] to [III] is provided similarly to any one of the first to third features of the present invention. In addition, the following “effects of the invention” are provided.
According to the fourth aspect of the present invention, the right and left feeding devices are reciprocated at a distance from each other without approaching each other, so that a seedling portion to which more medicine or fertilizer is supplied than usual is generated. No, the drug or fertilizer was easily supplied evenly to the seedlings placed on the seedling platform, and the supply performance of the drugs or fertilizer to the seedlings placed on the seedling platform was improved. .

[V]
(Constitution)
The fifth feature of the present invention resides in the following configuration in any one of the riding rice transplanters of the first to fourth features of the present invention.
The position where the right supply device supplies the drug or fertilizer from above to the seedlings placed on the predetermined number of seedling surfaces on the right, and the seedling where the left supply device is placed on the predetermined number of seedling surfaces on the left The right and left supply devices are provided with guide members for guiding the drug or fertilizer so that the position where the drug or fertilizer is supplied from above is the same position in a side view.

(Function)
According to the fifth aspect of the present invention, the “action” described in the preceding paragraphs [I] to [IV] is provided similarly to any one of the first to fourth characteristics of the present invention. It has the following “actions”.
As described in the preceding item [I], the right and left support members are positioned so that one of the right and left support members is positioned on the front side in plan view, and the other of the right and left support members is positioned on the rear side in plan view. When the supporting members are arranged, the positions of the right and left supply devices are also different from each other in the side view. In this case, according to the fifth feature of the present invention, the right and left supply devices are provided with guide members, and the right supply device is applied to the seedlings placed on the predetermined number of seedling surfaces on the right from above. Alternatively, the position where the fertilizer is supplied and the position where the left supply device supplies the drug or fertilizer from above to the seedlings placed on the predetermined number of seedlings on the left are the same position as seen from the side. It becomes easy to supply a chemical | medical agent or a fertilizer equally to the seedling mounted on the stand.

(The invention's effect)
According to the fifth feature of the present invention, the “effect of the invention” described in the preceding paragraphs [I] to [IV] is provided as in any one of the first to fourth features of the present invention. In addition, the following “effects of the invention” are provided.
According to the fifth aspect of the present invention, even when the positions of the right and left supply devices are different from each other in a side view, the medicine or fertilizer is easily supplied evenly to the seedlings placed on the seedling table. Thus, the supply performance of the drug or fertilizer to the seedlings placed on the seedling table was improved.

[VI]
(Constitution)
The sixth feature of the present invention resides in the following configuration in any one of the riding rice transplanters of the first to fifth features of the present invention.
Adjacent in the state in which the right and left supply devices reciprocate along the right and left support members and supply the drug or fertilizer from above to the seedlings placed on the predetermined number of right and left seedling surfaces. The partition part guide part which guides the chemical | medical agent or fertilizer supplied to the partition part between the seedling surface to perform to the seedling surface of an adjacent seedling is provided.

(Function)
According to the sixth aspect of the present invention, the “action” described in the preceding paragraphs [I] to [V] is provided in the same manner as any one of the first to fifth aspects of the present invention. It has the following “actions”.
When the right and left supply devices reciprocate along the right and left support members, the right and left supply devices move over a predetermined number of seedling surfaces on the right and left, so In several seedling surfaces, the right and left feeding devices pass above the partition between adjacent seedling surfaces. Thereby, it is considered that the medicine or fertilizer gets on the partition part. According to the sixth feature of the present invention, the partition part guide part for guiding the medicine or fertilizer supplied to the partition part to the next seedling surface. Therefore, it is less likely that the medicine or fertilizer gets on the partition part.

(The invention's effect)
According to the sixth aspect of the present invention, as in any one of the first to fifth aspects of the present invention, the “effect of the invention” described in the preceding paragraphs [I] to [V] is provided. In addition, the following “effects of the invention” are provided.
According to the sixth aspect of the present invention, it is possible to reduce the amount of medicine or fertilizer that gets on the partition part, and it is possible to reduce problems caused by the accumulation of medicine or fertilizer on the partition part (for example, the partition part). If the drug or fertilizer accumulates and gradually becomes a large lump, then if the large lump of drug or fertilizer falls to the side and rides on the seedling, a part of the seedling that is supplied with more drug or fertilizer than usual is generated (However, according to the sixth feature of the present invention, the above-described state is unlikely to occur).

[VII]
(Constitution)
The seventh feature of the present invention resides in the following configuration in any one of the riding rice transplanters of the first to sixth features of the present invention.
A right planting portion having a predetermined number of seedling surfaces on the right and a planting arm corresponding to the predetermined number of seedling surfaces on the right, a predetermined number of seedling surfaces on the left, and a predetermined number of seedling surfaces on the left The seedling planting device is configured so as to be divided into a left planting portion provided with a planting arm corresponding to. Working state in which the right and left planting parts are connected side by side in the left-right direction, and the right and left planting parts are separated, the backs of the seedling surfaces face each other, and the right and left planting parts are front and back The folding state arranged in the direction is set, and the seedling planting device is configured to be freely set to the working state and the folded state.

(Function)
According to the seventh aspect of the present invention, in addition to any one of the first to sixth characteristics of the present invention, the “action” described in the preceding paragraphs [I] to [VI] is provided. It has the following “actions”.
According to the seventh feature of the present invention, by setting the seedling planting device in the folded state, the overall width of the seedling planting device can be reduced compared to the seedling planting device in the working state. This makes it easier to transport a riding rice transplanter on a truck.

  In this case, according to the seventh aspect of the present invention, the right supply device, the support member, and the drive mechanism are supported by the right planting portion, and the left supply device, the support member, and the drive mechanism are supported by the left planting portion. So, when setting the seedling planting device in the folded state as described above, the right feeding device, the support member and the drive mechanism move together with the right planting part without any trouble, the left feeding device, The support member and the drive mechanism move together with the left planting part without any trouble.

(The invention's effect)
According to the seventh feature of the present invention, as in any one of the first to sixth features of the present invention, the “effect of the invention” described in the preceding paragraphs [I] to [VI] is provided. In addition, the following “effects of the invention” are provided.
According to the seventh feature of the present invention, when the seedling planting device is set in the folded state, the right and left feeding devices, the support members, and the drive mechanism move together with the right and left planting parts without any trouble. The operability when setting the seedling planting device in the folded state could be improved.

[VIII]
(Constitution)
The eighth feature of the present invention resides in the following configuration in the riding type rice transplanter of the seventh feature of the present invention.
In the state where the seedling planting device is set to the working state, the support member of the planting part to be moved to the folded state first among the right and left planting parts is located on the rear side in plan view, and the right and left The supporting member of the planting part to be moved to the folded state later is placed on the front side in plan view.

(Function)
According to the eighth feature of the present invention, the “action” described in the preceding paragraphs [I] to [VII] is provided in the same manner as the seventh feature of the present invention. In addition, the following “action” is provided. ing.
When the seedling planting apparatus is set in the folded state as described in the previous section [VII], generally the right and left planting parts are not moved to the folded state at the same time, for example, the right planting part first It is often said that the left planting part is moved to the folded state after the plant is moved to the folded state (especially when one worker sets the seedling planting device to the folded state).

  According to the eighth aspect of the present invention, when the seedling planting apparatus is set in the folded state, for example, the right planting part is first moved to the folded state, and then the left planting part is moved to the folded state. If it is comprised, it is comprised so that a right support member may be located in the rear side in planar view, and a left support member may be located in the front side in planar view. Thus, for example, when the right planting portion is moved to the folded state first, the right support member moves rearward from the left support member, so that the right support member is moved relative to the left support member. By being positioned on the rear side, the right support member moves rearward without interfering with the left support member.

(The invention's effect)
According to the eighth feature of the present invention, as in the seventh feature of the present invention, the “effect of the invention” described in the preceding items [I] to [VII] is provided. Effect.
According to the eighth aspect of the present invention, the seedling planting apparatus can be set in the folded state without causing the right and left support members to interfere with each other, and the seedling planting apparatus is set in the folded state. The operability at the time could be improved.

[1]
As shown in FIG. 1, an engine 3 and a transmission case 4 are provided at the front of the aircraft supported by the front wheels 1, the rear wheels 2, and the auxiliary rear wheels 2 a, and an operation unit 5 is formed at the center of the aircraft, A quadruple link type link mechanism 6 is connected to a rear portion of the machine body by a hydraulic cylinder 14 so as to be movable up and down, and a seedling planting device 7 is provided in the link mechanism 6 to constitute a riding type rice transplanter.

  As shown in FIGS. 1, 2, and 9, the seedling planting device 7 is configured in a ten-row planting type, and includes five transmission cases 8, and rotation cases that are rotatably supported on the left and right sides of the transmission case 8. 9, a pair of planting arms 10 provided at both ends of the rotating case 9, five grounding floats 11, seedling placing bases 13 provided with seedling placing surfaces 13a for 10 strips (see FIG. 3), seedling placing bases 13 The belt-type vertical feed mechanism 12 and the like provided on the seedling raising surface 13a.

  As a result, as shown in FIGS. 1, 2, and 9, the rotary case 9 is rotationally driven as the seedling platform 13 is reciprocated horizontally to the left and right, and the seedling platform 13 (seedling surface 13a). The seedling arm 10 alternately takes out the seedlings from the lower part of the seedling platform 13 (seedling surface 13a) and plantes them on the rice field. The seedling on the seedling base 13 (the seedling surface 13a) is sent downward by the feeding mechanism 12.

[2]
The seedling planting device 7 is configured to be separable into a right planting part 7R and a left planting part 7L. Next, the structure of the right and left planting parts 7R and 7L will be described.
As shown in FIGS. 2 and 9, the boss portion 6b is fixed to the lower portion of the vertical link 6a (see FIG. 1) at the rear end of the link mechanism 6, and the support case 15 is rolled around the front and rear axis P1 of the boss portion 6b. It is connected freely. Support frames 16 and 17 are fixed laterally on the upper and lower portions of the support case 15, and right and left support frames 18 are swingably connected around the longitudinal axis P <b> 2 of the support frames 16 and 17. The right and left support frames 19 are connected to the periphery of the vertical axis P3 at the end of the support frame 18 via a bracket 20 so as to be swingable.

  As shown in FIGS. 2 and 9, the right three transmission cases 8 are connected to the right support frame 19 in a cantilevered manner, and the left two transmission cases 8 are connected to the left support frame 19. It is connected in a cantilevered manner facing backwards. A bracket 21 extends rearward from the three right transmission cases 8, and a right frame 22 is fixed to the bracket 21 so as to surround the rear of the three right transmission cases 8. A bracket 21 extends rearward from the two left transmission cases 8, and a left frame 22 is fixed to the bracket 21 so as to surround the rear of the two left transmission cases 8.

  As shown in FIG. 3, the right seedling setting portion 13 </ b> R is configured by the seven partition portions 13 b between the right six seedling setting surfaces 13 a and the adjacent seedling setting surfaces 13 a, and the four left seedlings are formed. The left seedling platform portion 13L is configured by the five partition portions 13b between the mounting surface 13a and the adjacent seedling mounting surface 13a, and the seedling platform 13 is configured by the right and left seedling platform portions 13R and 13L. The vertical feed mechanism 12 is provided on each of the seedling setting surfaces 13a.

  As shown in FIGS. 3 and 9, the right sliding rail 34 is supported across the three right planting transmission cases 8, and the left sliding rail is spanned across the two left planting transmission cases 8. A moving rail 34 is supported, and a lower portion of the seedling base 13 is supported so as to be slidable along the right and left sliding rails 23. As shown in FIG. 2, the vertical frame 35 is fixed to the right and left support frames 19, and the right and left slide rails 37 are installed over the upper portion of the vertical frame 35, and the right and left slide rails 37. The upper part of the seedling bed 13 is slidably supported. As a result, the seedling bed 13 is driven to reciprocate horizontally and laterally along the right and left slide rails 34 and the right and left slide rails 37.

  With the above structure, as shown in FIGS. 3 and 9, the right three transmission cases 8, the right support frame 19, the right vertical frame 35, the right slide rail 37, the right slide rail 34, the right The right planting portion 7R is configured by the three grounding floats 11, the right seedling stage portion 13R, the vertical feed mechanism 12, and the like. Two left transmission cases 8, a left support frame 19, a left vertical frame 35, a left slide rail 37, a left slide rail 34, two left grounding floats 11, a left seedling platform portion 13L And the left planting part 7L is comprised by the vertical feed mechanism 12 grade | etc.,.

[3]
Next, the fertilizer application will be described.
As shown in FIG. 1, five feeding parts 24 corresponding to two items are attached to the rear side of a driver seat 23 provided in the driving part 5, and five hoppers 25 made of transparent resin and storing fertilizer are provided. The blower 26 is provided to supply the conveying air to the feeding portion 24.

  As shown in FIGS. 2 and 9, the vertical frame 47 is fixed to the right and left support frames 17, and the right and left metal support plates 48 are fixed to the upper part of the vertical frame 47. Six flexible hoses 27 are connected across the three right feeding portions 24 and the right support plate 48, and across the two left feeding portions 24 and the left support plate 48. Four flexible hoses 27 are connected.

  As shown in FIG.1 and FIG.2, ten grooving devices 29 for feeding fertilizer to the rice field while forming a groove on the side of the seedling planted by the planting arm 10 are prepared. A vessel 29 is attached to the ground float 11. The right and left metal support plates 53 are fixed to the right and left slide rails 37 by a support frame 54. Six flexible hoses 28 are connected across the right six grooved grooves 29 and the right support plate 53, and the left four grooved grooves 29 and the left support plate 53 are connected to each other. Four flexible hoses 28 are connected.

  With the above structure, as the seedlings are planted on the rice field as described in [1] above, the fertilizer in the hopper 25 is fed out by a predetermined amount from the feeding section 24, and the hoses 27 and 28 are fed by the blower 26 carrying air. The fertilizer is fed into the groove formed on the paddy surface by the groove generator 29.

[4]
Next, the case where the seedling planting device 7 is set from the working state to the folded state will be described.
The state shown in FIGS. 9 and 12 is a working state in which the right and left planting parts 7R and 7L and the right and left seedling setting parts 13R and 13L are connected side by side in the left-right direction. When the seedling planting device 7 is set from the working state to the folded state, the seedling rest 13 is separated into right and left seedling rests 13R and 13L, and the right seedling rest 13R is moved to the right end of the reciprocating lateral feed drive. To the left end of the reciprocating lateral feed drive.

  As shown in FIGS. 9 and 12 to 10, the right support frame 19 is swung laterally outward about the vertical axis P3 while the right support frame 18 is swung rearward about the vertical axis P2. Let Thereby, the seedling planting device 7 is separated into the right and left planting parts 7R and 7L, and the right support plate 53 (the right planting part 7R) is separated from the right support plate 48. As shown in FIG. 10 to FIG. 11 and FIG. 13, the right support frame 18 is swung further back around the vertical axis P2, and the right support frame 19 is swung further laterally outward about the vertical axis P3. The right planting part 7R and the right seedling setting part 13R are set to face in the front-rear direction.

  Next, as shown in FIGS. 9 and 12 to 10, while the left support frame 18 is swung backward about the vertical axis P2, the left support frame 19 is turned laterally around the vertical axis P3. The left support plate 53 (left planting portion 7L) is separated from the left support plate 48. As shown in FIG. 10 to FIG. 11 and FIG. 13, the left support frame 18 is swung further back around the vertical axis P2, and the left support frame 19 is swung further laterally outward about the vertical axis P3. By moving, the back surfaces of the right and left seedling platform portions 13R and 13L face each other, and the right and left planting portions 7R and 7L are set in the front-rear direction. Thus, the state shown in FIGS. 11 and 13 is the folded state of the seedling planting device 7, and the seedling planting device in the folded state is larger than the lateral width of the seedling planting device 7 in the working state shown in FIGS. 9 and 12. The width of 7 is narrow.

[5]
Next, the right and left support members 31 that support the right and left supply devices 30 will be described.
As shown in FIGS. 2, 4, and 5, seven metal plate-like support brackets 32 are prepared, and the seven support brackets 32 are all the same in the same shape. The support bracket 32 is formed in a U-shape when viewed from the side, and a large number of attachment holes 32a are opened at the upper portion, and the lower portion is bent into an oblique crank shape to form an inclined portion 32b. As shown in FIGS. 3 and 8, the support bracket 32 is fixed to the lower portion of the right seedling portion 13R, the second, third and fifth partition portions 13b from the right end portion in the right seedling stage portion 13R. Yes. As shown in FIGS. 3 and 7, the support bracket 32 is fixed to the left seedling portion 13 </ b> L at the left end, the second and third partitions 13 b from the left end.

  As shown in FIGS. 3, 5, and 8, in the right seedling stage portion 13 </ b> R, a pipe-like support frame is provided at the right end portion of the right seedling platform portion 13 </ b> R and below the fifth support bracket 32 from the right end portion. 33 is fixed, and a support frame 36 is fixed to the lower portion of the third support bracket 32 from the right end of the right seedling stage portion 13R. As shown in FIGS. 3, 4, and 7, a pipe-shaped support frame 38 is fixed to the upper portion of the support bracket 32 at the left end portion of the left seedling platform portion 13 </ b> L in the left seedling platform portion 13 </ b> L, A support frame 39 and a pipe-like support frame 33 are fixed to the lower part of the second and third support brackets 32 from the left end of the left seedling stage portion 13L.

  As shown in FIGS. 3, 5, and 8, a right support member 31 having a U-shaped cross section is prepared, and a pipe-like support portion 40 is fixed to the right support member 31. The support portion 40 of the right support member 31 is attached to the support frame 33 of the fifth support bracket 32 from the right end portion and the right end portion of the right seedling support portion 13R. A support frame 36 of the third support bracket 32 from the right end is attached to the right support member 31.

  As shown in FIGS. 3, 4, and 7, a left support member 31 having a U-shaped cross section is prepared, and pipe-like support portions 41 and 42 are fixed to the left support member 31. The support portions 41 and 42 of the left support member 31 are attached to the support frames 38 and 33 of the third support bracket 32 from the left end portion and the left end portion of the left seedling support portion 13L. A support frame 39 of the second support bracket 32 from the left end of the base portion 13 </ b> L is attached to the left support member 31.

  As shown in FIGS. 3, 5, and 8, the right guide rod 43 is attached over the attachment holes 32 a of the four support brackets 32 in the right seedling stage portion 13 </ b> R. As shown in FIG. 3, the left guide rod 43 is attached to the left seedling stage portion 13L over the attachment holes 32a of the three support brackets 32. In this case, by changing the mounting hole 32a of the support bracket 32, the positions of the right and left guide rods 43 can be changed up and down. A connection portion 43a is provided at the right end portion of the left guide rod 43 (see FIG. 3), and the left end portion of the right guide rod 43 is configured to be connectable and detachable to the connection portion 43a of the left guide rod 43. Yes.

When the seedling planting device 7 is set from the working state to the folded state, the right planting portion 7R and the right seedling platform portion 13R are first set to the folded state as described in [4] above, and then The left planting part 7L and the left seedling stage part 13L are set in a folded state.
Thereby, as shown in FIGS. 3, 4, 5, and 12, in the working state of the seedling planting device 7, the right support member 31 is positioned on the rear side in a plan view and the left support member 31 is in a plan view. It is located on the front side, and the right and left support members 31 are located at the same height in a side view. As shown in FIGS. 3 and 12, the left end of the right support member 31 is located to the left of the position of the right end of the left support member 31, and the right end of the left support member 31 is the right support member. It is located to the right of the position of the left end of 31.

[6]
Next, the right and left supply devices 30 and the right and left drive mechanisms 44 will be described.
As shown in FIGS. 3 and 12, a right drive mechanism 44 is provided at the right end of the right support member 31, and a left drive mechanism 44 is provided at the left end of the left support member 31. As shown in FIG. 6, a drive sprocket 45 and a driven sprocket 46 are rotatably supported by the right and left drive mechanisms 44, and a motor 49 for rotating the drive sprocket 45 forward and backward is provided. The driven sprocket 50 is rotatably supported by the left end portion of the right support member 31 (the right end portion of the left support member 31), and the chain 51 is wound around the drive sprocket 45 and the driven sprockets 46, 50. The chain 51 is disposed inside the right and left support members 31.

  As shown in FIGS. 4, 5, and 6, the right and left supply devices 30 include a hopper 52 that stores medicine (insecticide, fungicide, etc.) or fertilizer, a feeding unit 55 that is connected to the lower part of the hopper 52, and a feeding A supply hose 56 and the like connected to the lower part of the portion 55 are provided. A guide shoe 57 having a U-shaped cross section is fixed to the lower portion of the hopper 52, the guide shoe 57 is movably mounted on the upper portions of the right and left support members 31, and a roller 58 provided in the feeding portion 55 is provided. It is applied to the right and left support members 31. A feeding roller 59 is rotatably supported inside the feeding portion 55, and a support shaft 59 a of the feeding roller 59 protrudes from the feeding portion 55 and enters the right and left support members 31. A sprocket 60 fixed to 59 a is engaged with the chain 51. The occlusion portion 61 is fixed to the feeding portion 55 and enters the right and left support members 31, and the occlusion portion 61 is engaged with the chain 51.

  As shown in FIGS. 4, 5 and 6, in the right and left supply devices 30, the cored bar member 62 is provided inside the supply hose 56, and the attitude of the supply hose 56 is set by the cored bar member 62. The cored bar member 62 is made of metal and has an elongated flat plate shape. As shown in FIGS. 2, 3, and 5, in the right supply device 30, the supply hose 56 is slightly bent to the right drive mechanism 44 side when viewed from the front, and is bent to the front side when viewed from the side. As shown in FIGS. 2, 3, and 4, in the left supply device 30, the supply hose 56 is slightly bent to the left drive mechanism 44 side in a front view and is bent to the rear side in a side view. As a result, as shown in FIGS. 2, 4, and 5, in the right and left supply devices 30, the supply port 56 a at the lower end of the supply hose 56 is in the same position in a side view. 56a is located behind the right and left guide rods 43.

  With the above structure, as shown in FIGS. 3 and 6, the drive sprocket 45 and the chain 51 are rotated forward and backward by the motor 49, and the right supply device 30 is moved to the right and left ends of the right support member 31. The left supply device 30 is reciprocally driven across the right and left end portions of the left support member 31. In this case, when the right supply device 30 is positioned at the right end of the right support member 31, the left supply device 30 is positioned at the right end of the left support member 31, and the right supply device 30 is When positioned at the left end portion of the support member 31, the right and left supply devices 30 are simultaneously reciprocated in the same direction so that the left supply device 30 is positioned at the left end portion of the left support member 31.

  When the right and left supply devices 30 are reciprocally driven as described above, the sprocket 60 is rotationally driven by the chain 51 and the feeding roller 59 is rotationally driven as shown in FIGS. The stored medicine (insecticide, fungicide, etc.) or fertilizer is fed out by a predetermined amount by the feeding roller 59 and falls downward from the supply port 56 a of the supply hose 56. As a result, as shown in FIG. 3, a drug (insecticide, fungicide, etc.) from the right supply device 30 is applied to the seedling placed on the right seedling setting portion 13R (six seedling setting surface 13a) or Fertilizer is supplied, and a drug (insecticide, fungicide, etc.) or fertilizer or fertilizer is supplied from the left supply device 30 to the seedling placed on the left seedling stage portion 13L (4 seedling setting surface 13a). Supplied.

In this case, as shown in FIGS. 4 and 5, the seedling placed on the right seedling stage portion 13 </ b> R (six seedling setting surface 13 a) is tilted slightly forward by the right guide rod 43 and left The seedling placed on the seedling raising portion 13L (four seedling placement surfaces 13a) is tilted slightly forward by the left guide rod 43, and the right and left feeding devices 30 are placed on the tilted portion. Supplies chemicals (insecticide, fungicide, etc.) or fertilizer.
As described above, when the right and left supply devices 30 are driven to reciprocate, medicine (insecticide, fungicide, etc.) or fertilizer may be supplied to the partition portion 13b (support bracket 32). In this case, as shown in FIGS. 3, 4, and 5, the inclined portion 32 b of the support bracket 32 guides the medicine (insecticide, fungicide, etc.) or fertilizer to the seedling on the next seedling setting surface 13 a.

[Another Embodiment of the Invention]
In the above-mentioned [Embodiment of the invention], the right seedling setting portion 13R is constituted by the six partition portions 13b between the right five-row seedling setting surface 13a and the adjacent seedling setting surface 13a. The left seedling platform portion 13L may be configured by the six partition portions 13b between the five seedling placing surfaces 13a and the adjacent seedling placing surfaces 13a. If comprised in this way, the length of the right and left supporting member 31 will become the same.

  When the seedling planting device 7 is set from the working state to the folded state, the left planting portion 7L and the left seedling platform portion 13L are first set to the folded state, and then the right planting portion 7R and the right planting portion 7L When the seedling stage portion 13R is configured to be set in the folded state, in the working state of the seedling planting device 7, the left support member 31 is positioned on the rear side in a plan view, and the right support member 31 is in a plan view. It is configured to be located on the front side. The present invention can be applied not only to the 10-row type seedling planting device 7 but also to the 8-row type seedling planting device 7.

Overall side view of riding rice transplanter Overall side view of seedling planting device Rear view of seedling platform Vertical side view of the left support member and the vicinity of the left supply device Longitudinal side view of the vicinity of the right support member and the right supply device Vertical rear view of the right support member, right supply device, and right drive mechanism Perspective view of the vicinity of the left support member Perspective view of the vicinity of the right support member Plan view of seedling planting device in working condition Plan view of the seedling planting device in a state between the working state and the folded state Top view of the seedling planting device in the folded state Plan view near the seedling bed in the working state Top view near the seedling bed in the folded state

Explanation of symbols

7 Seedling planting device 7R Right planting part 7L Left planting part 10 Planting arm 13 Seedling stage 13a Seedling surface 13b Partition unit 30 Right and left supply device 31 Right and left support member 32b Partition unit guide Part 44 Right and left drive mechanism 56 Guide member

Claims (8)

In a riding-type rice transplanter equipped with a seedling platform with a large number of seedling surfaces, a planting arm for taking out seedlings from the seedling surface and planting them on the rice field corresponding to each of the seedling surfaces,
A right support member supported by the seedling platform so as to be disposed over a predetermined number of right seedling placement surfaces, and a right support member that is reciprocally movable along the right support member. A supply device, and a right drive mechanism that reciprocates the right supply device along a right support member,
A left support member supported by the seedling platform so as to be disposed over a predetermined number of left seedling placement surfaces, and a left support member that is reciprocally movable along the left support member. A supply device, and a left drive mechanism that reciprocates the left supply device along a left support member,
The right and left support members are arranged so that one of the right and left support members is located on the front side in plan view and the other of the right and left support members is located on the rear side in plan view. ,
The right and left supply devices are configured to supply medicine or fertilizer from above to seedlings placed on a predetermined number of seedling surfaces on the right and left while reciprocating along the right and left support members. A riding rice transplanter.   The left end of the right support member is positioned to the left of the position of the right end of the left support member, and the right end of the left support member is to the right of the position of the left end of the right support member The riding-type rice transplanter according to claim 1, wherein the rice-type rice transplanter is configured to be located in   The riding type rice transplanter according to claim 1 or 2, wherein the right drive mechanism is provided at a right end portion of a right support member, and the left drive mechanism is provided at a left end portion of the left support member.   When the right supply device is located at the right end of the right support member, the left supply device is located at the right end of the left support member, and the right supply device is the left end of the right support member. The right and left supply devices are configured to be reciprocally driven so that the left supply device is positioned at the left end of the left support member. The riding type rice transplanter as described in any one of them.   A position where the right supply device supplies a drug or fertilizer from above to a seedling placed on the predetermined number of seedling surfaces on the right, and the left supply device is placed on the predetermined number of seedling surfaces on the left 5. The right and left supply devices are provided with guide members for guiding the drug or fertilizer so that the position where the drug or fertilizer is supplied to the seedlings from above is the same position in a side view. The riding type rice transplanter as described in any one of them.   In the state where the right and left supply devices reciprocate along the right and left support members, while supplying the drug or fertilizer from above to the seedlings placed on the predetermined number of seedling surfaces on the right and left, The riding according to any one of claims 1 to 5, further comprising a partition guide unit that guides the medicine or fertilizer supplied to the partition between adjacent seedling surfaces to the adjacent seedling surface. Type rice transplanter. The right predetermined number of seedling surfaces and the right planting portion having planting arms corresponding to the predetermined number of seedling surfaces on the right, the predetermined number of seedling surfaces on the left and the predetermined number of seedlings on the left The seedling planting device can be divided into a left planting part with a planting arm corresponding to the resting surface,
Working state in which the right and left planting parts are connected side by side in the left-right direction, and the right and left planting parts are separated, and the back surfaces of the seedlings face each other so that the right and left planting parts Set the folded state where the parts line up in the front-rear direction,
The riding type rice transplanter according to any one of claims 1 to 6, wherein the seedling planting device is configured to be freely set to a working state and a folded state.   In the state where the seedling planting device is set in the working state, the support member of the planting part to be moved to the folded state first among the right and left planting parts is located on the rear side in plan view, The riding type rice transplanter according to claim 7, wherein the support member of the planting part to be moved to the folded state later among the right and left planting parts is positioned on the front side in a plan view.

Images