JP5535345B2 - Passenger rice transplanter - Google Patents

Description

  The present invention relates to a riding rice transplanter provided with a fertilizer application device for fertilizing a farm field.

  Conventionally, a technique for improving the maintainability of the fertilizer application apparatus by configuring a fertilizer applied to a farming machine that is provided in a working machine of a riding rice transplanter to be switchable between a work posture and a maintenance posture is known. (For example, refer to Patent Document 1).

  Similarly, from the viewpoint of improving maintainability, there is also a fertilizer that is configured so that the upper part of the fertilizer, that is, the hopper that stores the fertilizer, the feeding portion that feeds the fertilizer in the hopper, and the like can be rotated upward. .

  Specifically, a plurality of hoppers and feeding portions are arranged in the left-right direction in the fertilizer application apparatus. Of the plurality of hoppers and feeding portions, the left hopper and feeding portion are supported by a turning support shaft provided at the left end portion of the fertilizer application device so as to be rotatable upward. Of the plurality of hoppers and feeding sections, the right hopper and feeding section are supported by a pivot support shaft provided at the right end of the fertilizer application so as to be pivotable upward.

  However, the power for driving the plurality of feeding portions provided in the fertilizer applying apparatus is transmitted by the input shaft horizontally mounted in the left-right direction. Therefore, in order to rotate the left and right hoppers and the feeding device upward as described above, it is necessary to separate the input shaft to the left and right in the middle, and the work for the separation is complicated. It was disadvantageous.

JP 2006-101783 A

  This invention provides the riding rice transplanter provided with the fertilizer which can discharge | emit the fertilizer in a hopper easily.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

In Claim 1, in the riding rice transplanter provided with the fertilizer which discharge | releases the fertilizer in a hopper to a farm field by a predetermined amount, the said hopper is arrange | positioned right and left as a left hopper and a right hopper, and it feeds to the said left hopper and the right hopper , respectively And an input shaft for transmitting power to the feeding portion, the left hopper can be rotated in the left and up direction, the right hopper can be rotated in the right and up direction, and the input shafts of the left and right hoppers And connecting the input shaft of the left hopper and the right hopper via a release mechanism, releasing the connection of the input shaft of the left hopper and the right hopper, The fertilizer in the left hopper and the right hopper can be discharged respectively by rotating the right hopper upward and left and right respectively .

In claim 2, wherein the connecting mechanism comprises a first occlusal member provided on the input shaft of the left hopper, any one side of the hopper of the right hopper, left hopper, the input shaft of any other side of the hopper of the right hopper A second occlusion member provided on the left hopper and an input shaft of the right hopper when the first occlusion member and the second occlusion member are engaged with each other. A member is provided, and by operating the operation member, the occlusion between the first occlusion member and the second occlusion member is released.

According to a third aspect of the present invention, the left hopper and the right hopper are each provided with a grip portion that is gripped when rotating in the left-right and up-down directions, and the operation member of the release mechanism is provided in the grip portion.

  In this invention, the fertilizer in the hopper of the fertilizer application of a riding rice transplanter can be discharged | emitted easily.

The side view which shows the riding rice transplanter which comprises a fertilizer. The rear view which shows a fertilizer application apparatus. Similarly rear perspective view. Similarly side sectional drawing. FIG. The partial plane sectional view which shows the structure of a connection mechanism and a cancellation | release mechanism. Similarly front perspective view. The partial plane sectional view which shows the operation | movement aspect of a connection mechanism and a cancellation | release mechanism. The front perspective view which shows a fertilizer application. Similarly front sectional drawing. The front fragmentary sectional view which shows the operation | movement aspect of a fertilizer application. The front fragmentary sectional view which similarly shows an operation | movement aspect.

  Next, a four-row riding rice transplanter 1 (hereinafter simply referred to as “rice transplanter 1”) including the fertilizer application apparatus 100 will be described. In the following description, for the sake of explanation, the direction of the arrow A in the figure is defined as “front”, and the left, right, and rear are determined toward the front.

  As shown in FIG. 1, the rice transplanter 1 mainly includes a traveling device 10, a lifting device 30, a planting device 40, a fertilizer application device 100, and the like.

  The traveling device 10 of the rice transplanter 1 mainly includes a vehicle body frame 11, front wheels 12 and 12, rear wheels 13 and 13, an engine 14, a bonnet 15, a vehicle body cover 16, a dashboard 17, a steering handle 18, a driver's seat 19, and a column. A frame 20 and the like are provided.

  The body frame 11 that forms the skeleton of the rice transplanter 1 is supported by front wheels 12 and 12 on the both sides of the body frame 11 and rear wheels 13 and 13 on the rear. An engine 14 is mounted on the front portion of the body frame 11, and a bonnet 15 is disposed so as to cover the engine 14.

  A vehicle body cover 16 is disposed on both sides of the bonnet 15 and behind the bonnet 15 so as to cover the upper surface of the vehicle body frame 11. The vehicle body cover 16 is formed in a substantially staircase shape with front, rear, and rear heights, and the front portion of the vehicle body cover 16 is a step when the operator gets into the rice transplanter 1.

  At the rear part of the bonnet 15, a dashboard 17 having operation devices such as levers and switches for operating the rice transplanter 1 is arranged. Further, a steering handle 18 for steering the rice transplanter 1 is disposed so as to protrude above the bonnet 15. A driver's seat 19 for an operator to sit is disposed behind the steering handle 18 and at a substantially upper center in the front and rear direction of the body frame 11.

  A pair of left and right column frames 20 are erected on both sides of the rear portion of the body frame 11, and a horizontal beam frame (not shown) is horizontally disposed on the column frame 20. A fertilization frame 110 described later is fixed on the support frame 20 and the cross beam frame.

  And the raising / lowering apparatus 30 is arrange | positioned behind the traveling apparatus 10, and the rice transplanter 1 has connected the planting apparatus 40 mentioned later by the raising / lowering apparatus 30 so that raising / lowering is possible.

  The planting device 40 is for planting seedlings in a field, and mainly includes a seedling mount 41, a planting unit 42 (rotary case 44, planting claws 45), a float 43, and the like.

  The seedling stage 41 is disposed behind the vehicle body frame 11 so as to incline from front to rear and low, and a planting portion 42 is disposed at the rear lower part of the seedling stage 41. The planting unit 42 includes a rotary case 44 that rotates with a driving force from the engine 14, a planting claw 45 that is attached to the rotary case 44 and that plants seedlings on a farm field.

  The float 43 supports the planting device 40 to level the field, and is disposed below the seedling table 41.

  In this way, the rice transplanter 1 reciprocates (slids) the seedling table 41 left and right by the lateral feed mechanism as it travels forward, and drives the rotary case 44 and the planting claws 45 in synchronization with this reciprocation. Then, planting continuously, scraping one seedling into each strip.

  Below, the fertilizer application apparatus 100 is demonstrated. In addition, in this embodiment, although the fertilizer application apparatus 100 demonstrates as what is for four strips corresponding to the rice transplanter 1, it does not limit the said number of strips.

  The fertilizer application device 100 supplies fertilizer to the field in accordance with the seedling planting by the planting device 40. The fertilizer application device 100 is disposed behind the driver's seat 19 and in front of the planting device 40. The fertilizer application apparatus 100 mainly includes a fertilizer frame 110, a first power transmission mechanism 120, a first upper fertilizer 130, a second upper fertilizer 140, a lower fertilizer 150, a first rotation mechanism 160, a second rotation mechanism 170, A coupling mechanism 180, a release mechanism 190, and the like are provided.

  As shown in FIGS. 2 to 4, the fertilizing frame 110 is a main structure of the fertilizing apparatus 100. The fertilization frame 110 mainly includes support plates 111 and 111, upper frames 112 and 112, lower frames 113 and 113, connection frames 114 and 114, auxiliary support plates 115 and 115, and the like.

  The support plates 111 and 111 are plate-like members erected in a pair of left and right. The support plates 111 are arranged at a predetermined interval from each other.

  The upper frames 112 and 112 are hollow rod-shaped members having a rectangular cross section (see FIG. 4). The upper frames 112 and 112 are disposed such that the longitudinal direction thereof substantially coincides with the left-right direction. The upper frames 112 and 112 are fixed to the upper front and rear portions of the support plates 111 and 111, respectively, and connect the support plates 111 and 111 to each other.

  The lower frames 113 and 113 are hollow rod-shaped members having a circular cross section (see FIG. 4). The lower frames 113 and 113 are arranged such that the longitudinal direction thereof substantially coincides with the left-right direction. The lower frames 113 and 113 are fixed to the lower front and rear portions of the support plates 111 and 111, respectively, and connect the support plates 111 and 111 to each other.

  The connection frames 114 and 114 are members obtained by bending a plate-like member into a substantially U shape when viewed from the back. The connection frames 114 and 114 are arranged in a pair of left and right, and connect the front and rear lower frames 113 and 113 to each other. Thereby, the rigidity of the fertilization frame 110 is increased.

  The auxiliary support plates 115, 115... Are plate-like members. The auxiliary support plates 115, 115... Are arranged between the support plates 111, 111 in parallel with the support plates 111, 111 at a predetermined interval.

  As shown in FIGS. 4 and 5, the first power transmission mechanism 120 shifts and transmits the power transmitted from the engine 14. The first power transmission mechanism 120 is provided at the front portion of the fertilization frame 110 via the bracket 121. The first power transmission mechanism 120 mainly includes a first transmission shaft 122, a transmission 123, a second transmission shaft 124, a clutch 125, and the like.

  One end of the first transmission shaft 122 is linked to a transmission (not shown).

  The transmission 123 shifts the transmitted power. The transmission 123 is configured by members such as a gear and a shaft for shifting power. The other end of the first transmission shaft 122 is linked to the transmission 123 from below.

  The second transmission shaft 124 transmits the power changed by the transmission 123. One end (front end) of the second transmission shaft 124 is linked to the transmission 123. The other end (rear end) of the second transmission shaft 124 protrudes toward the rear of the transmission 123.

  The clutch 125 connects and disconnects power transmission by the second transmission shaft 124. The clutch 125 is provided in the middle of the second transmission shaft 124, and the power transmission by the second transmission shaft 124 can be blocked by separating the second transmission shaft 124 forward and backward.

  In the first power transmission mechanism 120 configured as described above, the power transmitted from the engine 14 to the first transmission shaft 122 is shifted by the transmission 123 and transmitted to the second transmission shaft 124.

  As shown in FIGS. 2 to 5, the first upper fertilizer applicator 130 mainly includes a second power transmission mechanism 131, a first input shaft 132, first hoppers 133 and 133, a lid 134, a first gripping part 135, It has a single feed-out portion 136, 136, etc.

  As shown in FIG. 5, the second power transmission mechanism 131 shifts and transmits the power transmitted from the first power transmission mechanism 120. The second power transmission mechanism 131 is configured by a member such as a gear or a shaft for shifting the power. The second power transmission mechanism 131 is disposed behind the first power transmission mechanism 120. The other end (rear end) of the second transmission shaft 124 is interlocked with the second power transmission mechanism 131.

  As shown in FIGS. 2, 4, and 5, the first input shaft 132 is linked to the second power transmission mechanism 131 and transmits the power shifted by the second power transmission mechanism 131. The first input shaft 132 is inserted into the second power transmission mechanism 131 and extends from the second power transmission mechanism 131 to the left and right.

  The first hoppers 133 and 133 are containers that are provided side by side on the left and right sides of the second power transmission mechanism 131 and store fertilizers. Upper and lower portions of the first hoppers 133 and 133 are opened. The lower parts of the first hoppers 133 and 133 are formed in a funnel shape. The first hoppers 133 and 133 are fixed to each other. Notches 133a and 133a are formed on the side surfaces of the first hoppers 133 and 133 that face each other, and the internal spaces communicate with each other by the notches 133a and 133a. In the present embodiment, the first hoppers 133 and 133 are integrally formed. A communication hole 133b is formed on the right side surface of the first hopper 133 on the right side of the first hoppers 133 and 133 (see FIG. 3). Usually, the communication hole 133b is closed by a plug or the like capable of closing the communication hole 133b.

  The lid 134 covers the upper parts of the first hoppers 133 and 133 and closes the upper parts of the opened first hoppers 133 and 133.

  As shown in FIG. 5, the first grip portion 135 is a member obtained by bending a rod-shaped member into a substantially U shape in plan view. The first grip 135 is fixed to a first hopper 133 disposed on the left side of the second power transmission mechanism 131. More specifically, one end of the first grip 135 is fixed to the lower front surface of the first hopper 133. The other end of the first grip 135 is fixed to the lower left side surface of the first hopper 133 via a bracket 135a.

  As shown in FIG. 2 and FIG. 4, the first feeding parts 136 and 136 are respectively disposed below the first hoppers 133 and 133, and feed out the fertilizers stored in the first hoppers 133 and 133 by a predetermined amount. It is. The first feeding portion 136 mainly includes an upper housing portion 136a, a feeding mechanism 136b, a lower housing portion 136c, and the like.

  The upper housing portion 136a is a container that receives the fertilizer dropped from the first hopper 133. The upper and lower portions of the upper housing portion 136a are opened. The upper part of the opened upper accommodating part 136a is connected to the lower part of the opened first hopper 133.

  The feeding mechanism 136b feeds the fertilizer stored in the upper storage unit 136a by a predetermined amount. The feed mechanism 136b is driven by power transmitted via a drive bevel gear 136d fixed to the first input shaft 132, a driven bevel gear 136e meshing with the drive bevel gear, and a feed shaft 136f fixed to the driven bevel gear. .

  The lower housing portion 136c is a container that receives fertilizer supplied through the feeding mechanism 136b. The lower accommodating portion 136c is disposed below the feeding mechanism 136b. The upper and lower portions of the lower housing portion 136c are opened. The lower accommodating portion 136c is formed in a funnel shape.

  In the first upper fertilizer machine configured as described above, the power transmitted from the first power transmission mechanism 120 to the second power transmission mechanism 131 is shifted by the second power transmission mechanism 131 and the first input shaft 132 is transmitted. Is transmitted to. The power transmitted to the first input shaft 132 is transmitted to the feed shaft 136f via the drive bevel gear 136d and the driven bevel gear 136e. The feed mechanism 136b is driven by the power transmitted to the feed shaft 136f, and the fertilizer stored in the first hopper 133 is supplied to the lower storage portion 136c via the upper storage portion 136a and the feed mechanism 136b.

  As shown in FIGS. 2 to 5, the second upper fertilizer applicator 140 mainly includes a second input shaft 142, a second hopper 143, a lid 144, a second gripping part 145, a second feeding part 146, and the like. The second upper fertilizer applicator 140 is juxtaposed to the left of the first upper fertilizer applicator 130.

  As shown in FIGS. 2 and 5, the second input shaft 142 transmits the power shifted by the second power transmission mechanism 131. The second input shaft 142 is disposed on the same axis as the first input shaft 132. The second input shaft 142 is linked and connected to the first input shaft 132 via a connecting mechanism 180 described later. Further, the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180 can be released by a release mechanism 190 described later.

  The 2nd hoppers 143 and 143 are juxtaposed to the left of the first hoppers 133 and 133, and are containers for storing fertilizers. Since the configuration of the second hoppers 143 and 143 is substantially the same as the configuration of the first hoppers 133 and 133 described above, description thereof is omitted. A communication hole 143b is formed on the left side surface of the second hopper 143 on the left side of the second hoppers 143 and 143 (see FIG. 3). Usually, the communication hole 143b is closed by a plug or the like that can close the communication hole 143b.

  The lid 144 covers the upper parts of the second hoppers 143 and 143 and closes the upper parts of the opened second hoppers 143 and 143.

  As shown in FIG. 5, the second grip portion 145 is a member obtained by bending a rod-like member into a substantially U shape in plan view. The second grip 145 is fixed to the right second hopper of the two second hoppers 143 and 143. More specifically, one end of the second grip portion 145 is fixed to the lower front surface of the second hopper 143. The other end of the second gripping portion 145 is fixed to the lower right side surface of the second hopper 143 via the bracket 145a.

  As shown in FIG. 2, the second feeding portions 146 and 146 are respectively disposed below the second hoppers 143 and 143, and feed out the fertilizers stored in the second hoppers 143 and 143 by a predetermined amount. The second feeding portions 146 and 146 are driven by the power transmitted by the second input shaft 142. The second feeding portion 146 mainly includes an upper housing portion 146a, a feeding mechanism, a lower housing portion, and the like. Since the configuration of the second feeding portion 146 is substantially the same as the configuration of the first feeding portion 136 described above, the description thereof is omitted.

  As shown in FIG. 1 to FIG. 4, the lower fertilizer applicator 150 mainly includes fertilizer transfer units 151, 151..., Fertilizer units 152, 152.

  As shown in FIG. 4, the fertilizer application units 151, 151,... Guide the fertilizer fed from the first feeding unit 136 and the second feeding unit 146. The fertilizer transfer unit 151 mainly includes a connection pipe 151a, a transfer hose 151b, and the like.

  The connecting pipe 151a is a substantially cylindrical member arranged so that the longitudinal direction is the front-rear direction. The lower part of the first feeding part 136 (or the second feeding part 146) is connected to the middle part of the connecting pipe 151a.

  The conveyance hose 151b is a bendable member formed of a soft synthetic resin or the like. One end of the transport hose 151b is connected to the rear end of the connection pipe 151a. The other end of the transfer hose 151b is extended to the vicinity of the planting part 42 (see FIG. 1).

  As shown in FIG. 1, the fertilizers 152, 152,... The fertilizer 152 is connected to the other end of the transport hose 151b in the vicinity of the planting part.

  As shown in FIG. 2 to FIG. 4, the blower 153 supplies wind into the fertilizer transfer unit 151 to assist the transfer of fertilizer. The blower 153 mainly includes a blower 153a, a blower pipe 153b, and the like.

  The blower 153 a applies pressure to the air and discharges it, and is disposed at the left end of the fertilizer application frame 110. The blower 153a is configured by a fan, a blower, or the like.

  The blower pipe 153b is a substantially cylindrical member arranged so that the longitudinal direction is the left-right direction. One end of the blower pipe 153b is connected to the discharge port of the blower 153a. The other end of the blower pipe 153b is closed. The blower pipe 153b is connected to the front end of the connection pipe 151a in the middle part thereof.

  In the lower fertilizer machine 150 configured as described above, the fertilizer supplied from the first upper fertilizer machine 130 and the second upper fertilizer machine 140 to the connection pipe 151a is transported by the air supplied from the blower 153 to the transport hose 151b. Is transferred to the fertilizer 152. The fertilizer 152 releases the fertilizer to the field while creating grooves in the field.

  As shown in FIG.2 and FIG.3, the 1st rotation mechanism 160 supports the 1st upper fertilizer 130 so that rotation upward with respect to the fertilizer frame 110 is possible. The first rotation mechanism 160 mainly includes first pivot support brackets 161 and 161, a first rotation support shaft 162, and the like.

  The first pivot bracket 161 is a plate-like member fixed to the right side surface of the first upper fertilizer applicator 130. The lower end of the first pivot support bracket 161 extends downward to the right side of the fertilization frame 110.

  The first rotation support shaft 162 is supported on the right side surface (support plate 111) of the fertilizer frame 110 with the axial direction as the front-rear direction. The 1st rotation support shaft 162 supports the lower end part of the 1st pivot bracket 161 so that rotation is possible.

  The 2nd rotation mechanism 170 supports the 2nd upper fertilizer 140 so that rotation upward with respect to the fertilizer frame 110 is possible. The second rotation mechanism 170 mainly includes second pivot brackets 171 and 171, a second rotation support shaft 172, and the like.

  The second pivot bracket 171 is a plate-like member fixed to the left side surface of the second upper fertilizer applicator 140. The lower end of the second pivot bracket 171 extends downward to the left side of the fertilizer frame 110.

  The second rotation support shaft 172 is supported on the left side surface (support plate 111) of the fertilization frame 110 with the axial direction as the front-rear direction. The 2nd rotation support shaft 172 supports the lower end part of the 2nd pivot support bracket 171 so that rotation is possible.

  By the first rotation mechanism 160 configured as described above, the first upper fertilizer applicator 130 is configured to be rotatable upward about the first rotation support shaft 162. Further, the second upper fertilizer applicator 140 is configured to be rotatable upward about the second rotation support shaft 172 by the second rotation mechanism 170.

  Hereinafter, the connection mechanism 180 and the release mechanism 190 will be described with reference to FIGS. 3 and 6 to 8.

  As shown in FIGS. 6 and 7, the connecting mechanism 180 connects the first input shaft 132 and the second input shaft 142 so as not to be relatively rotatable. The coupling mechanism 180 mainly includes a first occlusion member 181, a second occlusion member 182, an urging member 183, and the like. For convenience of explanation, illustration of the second hopper 143 of the second upper fertilizer applicator 140, the first hopper 133 of the first upper fertilizer applicator 130, the first gripping portion 135, and the like is omitted in FIG.

  The first occlusion member 181 is provided at the left end portion of the first input shaft 132 so as not to rotate relative to the first input shaft 132. Specifically, the first occlusion member 181 is fixed to the first input shaft 132 by a spring pin 181a. At the left end of the first occlusion member 181, a nail that can be engaged with a second occlusion member 182 described later is formed.

  The second occlusion member 182 is provided at the right end portion of the second input shaft 142 so as to be slidable along the axial direction of the second input shaft 142. A claw that can be engaged with the first occlusion member 181 is formed at the right end of the second occlusion member 182. When the second occlusion member 182 is slid rightward, the claws of the second occlusion member 182 and the claws of the first occlusion member 181 are engaged.

  Further, when the second occlusion member 182 and the first occlusion member 181 are engaged, the second occlusion member 182 cannot rotate relative to the second input shaft 142. Specifically, the spring pin 182a inserted through the second input shaft 142 engages with a groove portion 182b formed in the second occlusion member 182 so that the second occlusion member 182 is connected to the second input shaft 142. Relative rotation is impossible.

  The urging member 183 urges the second occlusion member 182 toward the right. The urging member 183 is disposed between the second occlusion member 182 and the spring receiving portion 142a formed in the middle portion of the second input shaft 142 (leftward of the second occlusion member 182). The urging member 183 urges the second occlusion member 182 to the right, that is, toward the direction of occlusion with the first occlusion member 181. The biasing member 183 according to the present embodiment is a coil spring, but the present invention is not limited to this, and any member that can bias the second occlusion member 182 to the right may be used.

  The release mechanism 190 releases the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180. The release mechanism 190 mainly includes an engagement member 191, an operation member 192, and the like.

  The engaging member 191 is a member obtained by bending a plate-like member into a substantially U shape in a side view. The engagement member 191 is engaged with the second occlusion member 182 by sandwiching the second occlusion member 182 from above and below by both ends thereof.

  The operation member 192 is a member obtained by bending a plate-like member. The operating member 192 has a predetermined length in the longitudinal direction, and is arranged so that the longitudinal direction substantially coincides with the front-rear direction. An engagement member 191 is fixed to the rear end of the operation member 192. A midway portion of the operation member 192 is rotatably supported by the second gripping portion 145 by a rotation shaft 192a whose vertical direction is the axial direction. Here, the predetermined length in the longitudinal direction is a length that allows the front end of the operation member 192 to be easily gripped by an operator.

  The operation modes of the coupling mechanism 180 and the release mechanism 190 configured as described above will be described.

  First, the case where the fertilizer applying apparatus 100 is in a normal working state in which fertilizer is supplied to the farm will be described with reference to FIGS. 6 and 7. In this case, the bracket 145a of the second gripping portion 145 is fixed by the fastener 112b fixed to the upper frame 112 via the bracket 112a. Thereby, the upward rotation of the second upper fertilizer applicator 140 is restricted. Further, the second occlusion member 182 is biased rightward by the biasing member 183. Accordingly, the second occlusion member 182 slides rightward along the second input shaft 142 and engages with the first occlusion member 181. In this state, the first input shaft 132 and the second input shaft 142 cannot be rotated relative to each other. Therefore, the power transmitted from the engine 14 to the first input shaft 132 is supplied to the second input via the coupling mechanism 180. Is transmitted to the shaft 142.

  Next, the case where the 1st upper fertilizer 130 or the 2nd upper fertilizer 140 is rotated upward is demonstrated using FIG. In this case, first, the operator releases the fixing of the bracket 145a by the fastener 112b (see FIG. 7). Thereafter, the operator grasps the front end portion of the operation member 192 and rotates the operation member 192 clockwise around the rotation axis 192a. Accordingly, the engaging member 191 fixed at the rear end of the operation member 192 is rotated clockwise in plan view. The second occlusion member 182 that engages with the engagement member 191 slides to the left against the urging force of the urging member 183. As a result, the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180 is released.

  In a state where the connection between the first input shaft 132 and the second input shaft 142 is released, the first gripper 135 or the second gripper 145 provided in the first hopper 133 and the second hopper 143 is gripped, and the upper side The first upper fertilizer machine 130 or the second upper fertilizer machine 140 can be rotated upward by lifting up (see FIG. 3).

  As described above, by rotating the first upper fertilizer machine 130 upward, the fertilizer accommodated in the first upper fertilizer machine 130 can be easily discharged from the communication hole 133b of the first hopper 133. Moreover, the fertilizer accommodated in the 2nd upper fertilizer application 140 can be easily discharged | emitted from the communicating hole 143b of the 2nd hopper 143 by rotating the 2nd upper fertilizer 140 upward. Accordingly, maintenance such as cleaning in the first upper fertilizer applicator 130 and the second upper fertilizer applicator 140 can be easily performed.

  As described above, the fertilizer application apparatus 100 is horizontally mounted on the first hopper 133 that stores fertilizer, the first feeding portion 136 that is disposed below the first hopper 133 and feeds the fertilizer by a predetermined amount, and the first feeding portion 136. A first upper fertilizer applicator 130 having a first input shaft 132 that transmits power from the engine 14 to the first feed-out portion 136, a second hopper 143 that stores fertilizer, and a fertilizer disposed below the second hopper 143. A second feeding portion 146 that feeds by a predetermined amount, and a second input that is horizontally mounted on the second feeding portion 146 so as to be on the same axis as the first input shaft 132 and transmits power from the engine 14 to the second feeding portion 146. A second upper fertilizer applicator 140 having a shaft 142, and a fertilizer transport unit that guides the fertilizer fed from the first feed unit 136 and the second feed unit 146 to the vicinity of the fertilizer unit 152. 51, a first upper fertilizer 130, a second upper fertilizer 140, a fertilizer frame 110 that supports the lower fertilizer 150, and a first upper fertilizer on the left and right sides of the fertilizer frame 110. The first rotation mechanism 160 that supports the fertilizer frame 110 so as to be pivotable upward, and the second upper fertilizer applicator 140 can pivot upward relative to the fertilizer frame 110 on the left and right sides of the fertilizer frame 110 The second rotation mechanism 170 to be supported, the connection mechanism 180 that connects the first input shaft 132 and the second input shaft 142 so as not to be relatively rotatable, the first input shaft 132 and the second input by the connection mechanism 180. And a release mechanism 190 that releases the connection with the shaft 142. With this configuration, the connection between the first input shaft 132 and the second input shaft 142 can be easily released by the release mechanism 190. Thereby, the 1st upper fertilizer machine 130 and the 2nd upper fertilizer machine 140 can be rotated up easily, and the manure in the 1st upper fertilizer machine 130 and the 2nd upper fertilizer machine 140 can be discharged easily. it can.

  In addition, the coupling mechanism 180 is provided on the first input shaft 132 so as not to rotate relative to the first input shaft 132, and is provided on the second input shaft 142 so as to be slidable in the axial direction. The second occlusion member 182 and the second occlusion member 182 that are incapable of occlusion and engaged with the first occlusion member 181 cannot be rotated relative to the second input shaft 142. The release mechanism 190 has an engagement member 191 that engages with the second occlusion member 182, a predetermined longitudinal length, and an engagement member 191. And an operation member 192 that can move in the axial direction of the first input shaft 132 and the second input shaft 142. With this configuration, the connection between the first input shaft 132 and the second input shaft 142 can be released only when the operation member 192 is operated. When the operation member 192 is not operated, the first input shaft 132 and the second input shaft 142 can be connected by the connecting mechanism 180. Furthermore, by configuring the operation member 192 to have a predetermined length in the longitudinal direction, the connection mechanism 180 can be easily operated even if the connection mechanism 180 is disposed at a position where it is difficult to operate manually. .

  In the present embodiment, the first occlusion member 181 is provided on the first input shaft 132, and the second occlusion member 182 is provided on the second input shaft 142. However, the first occlusion member 181 is provided on the second input shaft. It is also possible to adopt a configuration in which the shaft 142 is provided with the second occlusion member 182 on the first input shaft 132, respectively.

  Further, the fertilizer applying apparatus 100 is provided in the second upper fertilizer applicator 140 and includes a second gripping portion 145 that can be gripped, and the operation member 192 of the release mechanism 190 is attached to the second gripping portion 145. With this configuration, the connection between the first input shaft 132 and the second input shaft 142 can be released by simultaneously gripping the operation member 192 and the second grip portion 145. Further, since the second upper fertilizer applicator 140 can be rotated with the operation member 192 and the second gripping part 145 as they are, the operability during maintenance such as discharging fertilizer can be improved.

  In the present embodiment, the operation member 192 of the release mechanism 190 is provided on the second grip portion 145, but the operation member 192 may be provided on the first grip portion 135.

  Below, the fertilizer application apparatus 200 is demonstrated using FIGS. 9-12. In addition, the same code | symbol is attached | subjected to the member of the structure substantially the same as the above-mentioned fertilizer application apparatus 100, and description is abbreviate | omitted. For convenience of explanation, the illustration of the fastener 112b and the like is omitted in FIGS. The difference between the fertilizer application apparatus 200 and the fertilizer application apparatus 100 is that a release mechanism 290 is provided instead of the release mechanism 190.

  As shown in FIGS. 9 and 10, the release mechanism 290 releases the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180. The release mechanism 290 mainly includes an engagement member 191, an operation member 192, a holding member 293, and the like.

  The holding member 293 holds the first input shaft 132 and the second input shaft 142 in a state where the connection mechanism 180 is released. The holding member 293 mainly includes a rod-shaped member 293a, a bracket 293b, a biasing member 293c, a locking member 293d, and the like.

  The rod-shaped member 293a is a member configured by bending a round bar member. The rod-shaped member 293a has an upper end portion (hereinafter simply referred to as “hook portion 293e”) formed in a hook shape. The length (height) from one end (lower end) to the other end (end on the hook portion 293e side) of the rod-shaped member 293a is greater than the length (height) from the upper surface of the upper frame 112 to the upper surface of the operation member 192. Also configured to be larger.

  The bracket 293b is a pipe-like member that supports the rod-like member 293a so as to be slidable up and down. The bracket 293b is fixed to the right side surface of the second grip portion 145.

  The urging member 293c is a member that urges the rod-shaped member 293a downward, and includes a spring or the like. The biasing member 293c is disposed between the bracket 293b and a spring receiving portion 293f fixed to the rod-like member 293a below the bracket 293b.

  The locking member 293d is a member configured by forming a notch 293g in a plate-like member. The locking member 293d is fixed to the right side surface of the operation member 192. The locking member 293d is a rod-shaped member 293a in plan view when the operation member 192 is rotated clockwise in plan view and the connection between the first input shaft 132 and the second input shaft 142 by the connecting mechanism 180 is released. The end portion on the side of the hook portion 293e and the notch portion 293g are disposed at substantially the same position.

  In such a configuration, an operation mode when the first upper fertilizer machine 130 or the second upper fertilizer machine 140 is rotated upward will be described with reference to FIGS. 10 to 12.

  As shown in FIG. 11, when the operation member 192 is rotated clockwise in plan view, the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180 is released.

  As shown in FIG. 12, in this state, when the second grip 145 is held and lifted upward, the lower end of the bar-shaped member 293a is separated from the upper surface of the upper frame 112, and the bar-shaped member 293a is moved by the urging member 293c. It is slid downward. When the rod-like member 293a is slid downward, the hook portion 293e of the rod-like member 293a engages with the notch portion 293g of the locking member 293d. As a result, the operation member 192 can be held at the position even when the hand is released from the operation member 192. As a result, the connection between the first input shaft 132 and the second input shaft 142 can be held. .

  After rotating the first upper fertilizer machine 130 or the second upper fertilizer machine 140 and performing maintenance such as discharge of fertilizer, turning the second upper fertilizer machine 140 downward to return to the original position, The lower end of the rod-shaped member 293a contacts the upper surface of the upper frame 112, and the rod-shaped member 293a is slid upward. When the rod-shaped member 293a is slid upward, the engagement between the hook portion 293e and the notch portion 293g is released (see FIG. 11). As a result, the operation member 192 can be rotated, and the first input shaft 132 and the second input shaft 142 are coupled by the coupling mechanism 180 (see FIG. 10).

  In this way, when the second upper fertilizer applicator 140 is rotated downward after the first upper fertilizer applicator 130 is rotated downward, the operation member 192 is held in a state of being rotated clockwise in plan view. Therefore, the second occlusion member 182 does not interfere with the first occlusion member 181, and damage or breakage can be prevented. Further, the operating member 192 can be held in a state of being rotated clockwise in plan view by simply rotating the second upper fertilizer applicator 140 upward by the holding member 293. Furthermore, the holding of the operation member 192 can be released simply by rotating the second upper fertilizer applicator 140 downward. Thereby, it is possible to prevent forgetting the connection operation and the connection release operation of the connection mechanism 180.

  The configuration of the holding member 293 is not limited to the above configuration, and when the first upper fertilizer 130 and the second upper fertilizer 140 are rotated upward, the operation member 192 is locked with a locking lever, a pin, or the like. It is also possible to adopt a configuration in which the locking or fixing is manually performed after the first upper fertilizer 130 and the second upper fertilizer 140 are pivoted downward after being locked or fixed.

  As described above, the release mechanism 290 includes the holding member 293 that holds the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180 in a released state. With this configuration, the connection between the first input shaft 132 and the second input shaft 142 by the connection mechanism 180 can be held in a released state. Thereby, when rotating the 1st upper fertilizer machine 130 or the 2nd upper fertilizer machine 140, interference with the 1st occlusion member 181 and the 2nd occlusion member 182 can be prevented, and breakage of connection mechanism 180 by extension Can be prevented.

DESCRIPTION OF SYMBOLS 1 Riding rice transplanter 100 Fertilizer 132 First input shaft 133 First hopper 135 First gripping part 136 First feeding part 142 Second input shaft 143 Second hopper 145 Second gripping part 146 Second feeding part 160 First rotation Mechanism 170 Second rotation mechanism 180 Connection mechanism 181 First occlusion member 182 Second occlusion member 183 Biasing member 190 Release mechanism 191 Engagement member 192 Operation member

Claims (3)

In a riding rice transplanter equipped with a fertilizer that discharges fertilizer in the hopper to the field by a predetermined amount,
The left and right hoppers are arranged on the left and right as the left hopper and the right hopper ,
The left hopper and the right hopper are each provided with a feeding part, and an input shaft for transmitting power to the feeding part,
The left hopper can be rotated in the left up and down direction and the right hopper in the right up and down direction .
The input shaft of the left hopper and the right hopper is connected via a connection mechanism, and the connection of the input shaft of the left hopper and the right hopper is released via a release mechanism,
The connection between the input shafts of the left hopper and the right hopper is released, and the left hopper and the right hopper are rotated leftward and upward, respectively, so that the fertilizer in the left hopper and the right hopper can be discharged respectively. A riding rice transplanter characterized by The coupling mechanism includes a first occlusion member provided on the input shaft of the left hopper, any one side of the hopper of the right hopper, second occlusion provided in an input shaft of the left hopper, either the other side of the right hopper hopper The first occlusion member and the second occlusion member are engaged, whereby the input shafts of the left hopper and the right hopper are connected, and the release mechanism includes an operation member, The riding rice transplanter according to claim 1, wherein the operation member is operated to release the occlusion between the first occlusion member and the second occlusion member. 3. The riding rice transplanter according to claim 2, wherein the left hopper and the right hopper are each provided with a grip portion for gripping when rotating in the left-right and up-down directions, and an operation member for the release mechanism is provided on the grip portion. .

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