JP2021164428A - Harvesting machine - Google Patents

Abstract

To provide a harvesting machine that can reduce the number of parts.SOLUTION: A harvesting machine includes a conveyor 15 in which a front portion 15a of the conveyor can rotate in the vertical direction with respect to a rear portion 15b around rotation center shafts 22L and 22R. The harvesting machine includes a clutch wire 139 for stopping the conveyor 15 and a retaining connection member 141 to which the clutch wire 139 is connected. The retaining connection member 141 prevents the rotation center shaft 22R from coming off, and pulls the clutch wire 139 when the front portion 15a of the conveyor rotates upward to stop the conveyor 15.SELECTED DRAWING: Figure 9

Description

The present invention relates to a harvester capable of reducing the number of parts.

Conventionally, for example, a harvester described in Patent Document 1 below is known, and in this harvester, the first transport portion is vertically oriented with respect to the second transport portion about a rotation center axis in the left-right direction. It is equipped with a rotatable harvest transport means.

Then, as shown in FIG. 12, the harvested product transporting means (conveyor) includes, for example, a wire connecting pin 4 fixed to the front conveyor frame 1 and inserted into the arcuate elongated hole 3 of the fulcrum frame 2. A clutch wire 5 for stopping the conveyor is connected to the connection pin 4. Further, the rotation center shaft (rotation fulcrum) fixed to the front conveyor frame 1 is inserted into the shaft insertion hole of the fulcrum frame 2, and the nut 6 is screwed into the rotation center shaft to form a washer for retaining. 7 is fixed to the fulcrum frame 2.

JP-A-2019-146513

However, there is a problem that the number of parts is large in the configuration including the fulcrum frame 2 having the arc-shaped elongated hole 3 formed, the wire connecting pin 4 and the like as in the conventional harvester.

The present invention has been made in view of such a point, and an object of the present invention is to provide a harvester capable of reducing the number of parts.

The harvester according to claim 1 has a first transport portion and a second transport portion, and the first transport portion can rotate in the vertical direction with respect to the second transport portion about a rotation center axis. The harvest product transporting means, the stop member for stopping the harvest product transport means, and the retaining connection member to which the stop member is connected are provided, and the rotation center shaft is fixed to the first transport portion and is fixed to the first transport portion. It is inserted into the shaft insertion hole of the second transport portion, and the retaining connection member prevents the rotation center shaft from coming out of the shaft insertion hole, and at the same time, the stop member is rotated upward when the first transport portion is rotated. Is what moves.

The harvester according to claim 2 is the harvester according to claim 1, wherein the retaining connection member has a fixing portion fixed to the rotation center shaft and a connecting portion to which the stop member is connected.

The harvester according to claim 3 is the harvester according to claim 2, wherein the fixed portion is formed in a cylindrical shape that fits to the rotation center axis, and the connecting portion is located on the axial end side of the fixed portion. It is provided.

The harvester according to claim 4 is the harvester according to claim 2 or 3, wherein the stop member is a clutch wire, and the tip end portion of the clutch wire is connected to a protruding portion of the connection portion. ..

The harvester according to claim 5 is the harvester according to any one of claims 1 to 4, and includes a fixing member for fixing the retaining connection member to the rotation center axis.

According to the present invention, the number of parts can be reduced.

It is a left side view of the harvester which concerns on one Embodiment of this invention. It is a side view on the right side of the harvester as above. Same as above It is a plan view of the harvester. Same as above It is a perspective view on the left side of the harvester. It is a perspective view on the right side of the harvester as above. It is the left side view of the retracting posture of the harvester. (A) to (c) are diagrams showing a safety body provided in the harvester as above. It is a figure which shows the vibration means which the harvester has. It is a partially disassembled perspective view of the conveyor of the harvester of the same as above. (A) and (b) are perspective views of the retaining connection member (conveyor receiver). (A) to (c) are rotation views of the front side portion of the conveyor. It is explanatory drawing of the conventional harvester.

An embodiment of the present invention will be described with reference to FIGS. 1 to 11.

In FIGS. 1 to 6, reference numeral 11 denotes a harvester which is an agricultural work machine, and the harvester 11 is a small self-propelled harvester for harvesting a harvested product (agricultural product) W in a field. The harvested product W to be harvested is, for example, a substantially spherical potato grown in the soil of a field. In addition to potatoes, the harvested product W may be, for example, sweet potatoes, onions, carrots, or the like.

The harvester 11 is based on the engine 13 which is the drive source installed in the machine frame 12, the crawler 14 which is the left and right traveling means which operates based on the power from the engine 13, and the power from the engine 13 as well. It is provided with a conveyor 15 which is a harvest material transporting means which can operate and transport the harvested product W in a transporting direction (obliquely upward and backward), and a vibrating means 17 for vibrating the transporting portion 16 of the conveyor 15 in the vertical direction. There is.

The conveyor 15 has a conveyor front side portion 15a which is a first transport portion on the front side and a conveyor rear side portion 15b which is a second transport portion on the rear side, and the conveyor front side portion 15a is a center of rotation in the left-right direction. It is rotatable in the vertical direction with respect to the rear portion 15b of the conveyor around the shaft 22 (22L, 22R).

Specifically, the conveyor front side portion 15a, which is a rotating portion, is centered on two left and right rotating central shafts 22L and 22R located coaxially based on the expansion and contraction (operation) of the cylinder 21 which is a driving means. It can rotate in the vertical direction with respect to the rear portion 15b of the conveyor. Then, the conveyor front side portion 15a is put into a non-working state (retracted state) by the upward rotation based on the extension operation of the cylinder 21, and is put into the working state by the downward rotation based on the contraction operation of the cylinder 21. Further, the conveyor front side portion 15a has a digging blade 23 and a gauge ring 24, and the height position (vertical position) of the gauge ring 24 can be adjusted by the adjusting handle 25.

Further, the harvester 11 includes left and right seats 26 on which the worker sits, steps 27 provided in the vicinity of each of the seats 26, an operating means 28 operated by the worker sitting on the left seat 26, and harvesting. It is equipped with a front container stand 29, a rear container stand 30, and an auxiliary container stand 40 on which a container (a container in which the harvested product W is stored) is placed.

The front container stand 29 is arranged on the front side of the seat 26, and the rear container stand 30 and the auxiliary container stand 40 are arranged on the rear side of the seat 26. The rear container base 30 is provided at the rear end of the conveyor rear side portion 15b of the conveyor 15. The operating means 28 includes various operating levers, operating switches, and the like, and includes, for example, a main clutch lever 61, an auxiliary clutch lever 62, an engine stop switch 63, and the like.

Further, the harvester 11 is provided with left and right safety bodies 71 for ensuring the safety of the operator when the front side portion 15a of the conveyor is rotated upward with respect to the rear side portion 15b of the conveyor. Then, in the harvester 11, the safety body 71 can regulate the downward rotation of the non-working state conveyor front portion 15a that has been rotated upward to a predetermined position (for example, the non-working position which is the upper limit position) by the operation of the cylinder 21. It is composed. That is, the safety body 71 also has a fall prevention function for preventing the front side portion 15a of the conveyor in a non-working state from falling (downward rotation due to its own weight) due to a failure of the cylinder 21 or the like.

Here, as shown in FIGS. 7A to 7C, the safety body 71 is attached to the mounting member (mounting frame for gauge wheels) 72 erected on the side plate 46 (46a) of the conveyor front side portion 15a. A longitudinal safety cover member 76 rotatably connected via a connecting pin 73 and a fixing for fixing (locking) the safety cover member 76 to the side plate 46 (46b) of the rear side portion 15b of the conveyor. It has a detachable pin 77 which is a member.

The safety cover member 76 has a cross section that simultaneously covers the upper parts of the side plates 46 (46a, 46b) of both parts 15a and 15b of the conveyor 15 so that the operator does not pinch his or her hands between the front and rear side plates 46 (46a, 46b). It is a U-shaped longitudinal member. A work hole (slide hole) 78 is formed on the upper side of the rear end portion of the safety cover member 76, and a fixing hole 79 is formed on the lower side of the rear end portion.

The attachment / detachment pin 77 is a headed pin member that can be attached / detached to / from the safety cover member 76. The attachment / detachment pin 77 has a round shaft-shaped shaft portion 81 and a head portion 82 provided at the base end of the shaft portion 81. A tip side hole 83 is formed at the tip end portion of the shaft portion 81, and a base end side hole 84 is formed at the base end portion of the shaft portion 81.

The side plate 46 (46b) of the conveyor rear side portion 15b includes a vertical side plate portion 86, an upper plate portion 87 protruding inward (conveyor portion 16 side) from the upper end portion of the side plate portion 86, and this upper plate. It has a protruding plate portion 88 that projects downward from the inner end portion of the portion 87. A reinforcing member (for example, a reinforcing washer) 90 is welded and fixed to a predetermined portion on the inner surface of the side plate portion 86. Fixing holes 91 and 92 are formed in the reinforcing member 90 and the side plate portion 86, respectively.

Then, as shown in FIGS. 7A and 7B, at the time of work, the attachment / detachment pin 77 is inserted into the work hole 78 of the safety cover member 76, and then the R pin inserted into the proximal end side hole 84. The (removal pin) 93 prevents the work hole 78 from coming out, and in this state, the attachment / detachment pin 77 responds to the rotation of the conveyor front portion 15a based on the operation of the cylinder 21 and the conveyor rear portion 15b. The upper surface 87a of the upper plate portion 87 of the side plate 46 (46b) is slid along the upper surface 87a in a state of being in linear contact with the upper surface 87a. At this time, the R pin 93 is inserted into the base end side hole 84 and inside the safety cover member 76 so that the R pin 93 does not come off due to contact with the harvested product W, soil, the operator's hand, or the like. Is located in.

Further, as shown in FIGS. 6 and 7 (c), when not working (when retracted), the detachable pin 77 is inserted into the fixing holes 79, 91, 92 which are pin insertion holes facing each other. After that, the R pin 93 inserted into the tip side hole 83 keeps the fixing holes 79, 91, 92 from coming out. Then, in this state, even if the conveyor front side portion 15a in the non-working state tries to rotate downward by its own weight due to, for example, a failure of the cylinder 21, the fixed state (lock) fixed to the conveyor rear side portion 15b. The safety body 71 in the non-working state regulates the downward rotation of the conveyor front portion 15a in the non-working state, and the non-working state is maintained. At this time, the R pin 93 is inserted into the tip side hole 83 and is located outside the safety cover member 76 so that the R pin 93 can be easily attached to and detached from the attachment / detachment pin 77.

On the other hand, the conveyor 15 is a foldable one having a conveyor front side portion 15a and a conveyor rear side portion 15b that are rotatably connected to each other so that the front and rear lengths can be shortened during non-working. It is a digging and transporting device (harvest transporting means) that digs the harvested product W vegetated in the soil from the soil and transports it in the transporting direction.

Then, the conveyor 15 moves the harvested product W diagonally upward and backward (conveyed) while dropping the soil of the field carried on the conveyor 15 together with the harvested product W from the soil drop opening (gap between adjacent transport bars 43) 20. It has an endless transport unit 16 that can be rotated to transport in the direction (direction). The front side portion of the transport portion 16 is a part of the conveyor front side portion 15a, and the rear side portion of the transport portion 16 is a part of the conveyor rear side portion 15b.

The transport unit 16 is wound around a driven roller (driven rotating body) 31 located at the front end and a driving roller (driving rotating body) 32 located at the rear end, and is driven in a predetermined direction by the driving rotation of the driving roller 32. The harvested product W is transported while rotating. The transport unit 16 has an outward road surface portion 33 on the upper side that transports the harvested product W while dropping soil from the plurality of soil drop openings 20, and the outward road surface portion (belt portion of the outward road surface portion) 33 is a roller body (a roller body ( It is supported from below by the support body) 35 and the fixed guide body 36.

Further, the transport portion 16 is erected between an endless belt (belt portion) 41 which is a pair of left and right band-shaped endless members rotating in a predetermined direction and both endless belts 41, and rotates together with the endless belt 41. It has a transport bar (conveyor bar) 43 which is a plurality of transport members long in the left-right direction for transporting the harvested product W in the transport direction. Between the transport bars 43 adjacent to each other in the transport direction, there is a soil drop opening 20 for dropping soil toward the field.

The plurality of conveyor bars 43 are composed of three types of conveyor bars 43a, 43b, and 43c, which are different in shape from each other and have different heights at the lowest position (lower end position which is the contact position with the vibrating roller 101). One of the transport bars 43 (43a) is a rising conveyor bar. The transport bar 43 (43a) is located above the other transport bars 43 (43b, 43c) and has an upward protruding rolling prevention portion (rising portion) 44 that prevents the harvested product W from rolling. doing.

Further, the left and right roller bodies 35 are intermediate driven roller bodies that support the intermediate portion of the endless belt 41 of the transport portion 16 from below while rotating in a driven direction in a predetermined direction. The roller body 35 is fixed to a predetermined portion of the side plate 46 (46a) of the conveyor rear side portion 15b by a fixing means 50 including an elongated plate-shaped fixing member (stone avoidance plate) 51.

On the other hand, the vibrating means 17 is a conveyor vibrating device for vibrating the transport portion 16 of the conveyor 15 in the vertical direction in order to shake off the soil. Then, the vibrating means 17 vibrates in at least three states, that is, for example, the transport portion 16 in the first vibration strength (vibration strength having an amplitude "20 mm" and an amplitude "9 mm"). A "strong" state) and a second vibration input state (vibration "weak" state) in which the transport unit 16 is vibrated with a second vibration strength (vibration strength having an amplitude "8.2 mm") weaker than the first vibration strength. ) And the vibration off state (vibration "off" state) in which vibration is not applied to the transport unit 16 can be selectively switched.

Here, as shown in FIG. 8, the vibrating means 17 is conveyed based on the contact of the transfer unit 16 with the transfer bar 43 in the vibration input state (the first vibration input state and the second vibration input state). The vibrating roller 101, which is a vibrating body that can move up and down to apply vibration to the unit 16, and the endless belt of the transport unit 16 so that the vibrating roller 101 does not come into contact with the transport bar 43 of the transport unit 16 when the vibration is off. It has a support guide 102, which is a plate-shaped left and right support that can move up and down to slidably support 41.

Further, the vibrating means 17 has an operating lever 103 which is a rotatable operating body for switching the state of the vibrating means 17 to any one of three states, and includes a vibrating roller 101 and a support. The guide 102 is simultaneously set at a predetermined position corresponding to the state of the vibrating means 17 by vertical movement based on the rotational operation of the operating lever 103. That is, the vibrating means 17 is switched to the first vibration input state by fixing the operation lever 103 to the first vibration input position with the lock pin 104, and the operation lever 103 is fixed to the second vibration input position with the lock pin 104. The vibrating means 17 is switched to the second vibration on state, and the vibrating means 17 is switched to the vibration off state by fixing the operation lever 103 to the vibration off position with the lock pin 104.

The operating lever 103 has a plate-shaped lever main body 106 and a U-shaped frame 107 fixed to the lever main body 106. The L-shaped lock pin 104 is inserted into the pin hole 108 of the lever main body 106 and the pin hole 109 of the U-shaped frame 107. Further, in the portion of the lock pin 104 located inside the U-shaped frame portion 107, the holes of the switching plate 110 (first vibration input position hole 111, second vibration input position hole 112, vibration cut position hole 112). A spring 115, which is an urging member for urging the lock pin 104 toward 113), is attached.

The switching plate 110 is fixed to the left side plate 46 of the conveyor front side portion 15a. Stoppers 117 and 118 that regulate the rotation of the operating lever 103 by contacting the operating lever 103 are provided on the front and rear sides of the switching plate 110. Therefore, the rotation range of the operating lever 103 is limited by the front and rear stoppers 117 and 118.

Further, the vibrating means 17 has a rotating shaft 121 rotatably installed between the left and right side plates 46 which are separated from each other and face each other, and the lever main body of the operating lever 103 is located at the left end of the rotating shaft 121. The base end of 106 is fixed. Further, the left and right side plates (front conveyor frame) 46 are connected by a connecting pipe 120.

The base end side of the mounting plate 122 is fixed to two places of the rotating shaft 121, and a vibrating roller 101, which is a cylindrical rotating body, is rotatably attached to the tip end side of the mounting plate 122 via a bearing 100. There is. Further, a support plate 123 for supporting the support guide (belt support guide plate) 102, which is a rotating body, is fixed to a portion of the rotation shaft 121 located outside the mounting plate 122. Therefore, the vibrating roller 101 and the support guide 102 rotate in the vertical direction in conjunction with each other based on the rotation of the rotating shaft 121 by the operation of the operating lever 103.

The support guide 102 can rotate in the vertical direction so that the rear end side moves up and down around the support shaft portion (rotation fulcrum) 124 fixed to the side plate 46 of the conveyor front side portion 15a. In other words, the support guide 102 can rotate in the vertical direction about the rotation fulcrum on the front end side.

The support guide 102 is provided on an elongated plate-shaped guide main body 126 that is bent at one point, a mounting portion 127 provided at the front end of the guide main body 126, and a lower surface of the guide main body 126. It has a protruding plate portion 128 that is projected. The attachment portion 127 is rotatably attached to the support shaft portion 124, and the lower surface of the guide main body portion 126 is supported by the support portion 130 which is the curved upper end portion of the support plate 123.

The vibrating roller 101 and the support guide 102 are arranged between the left and right side plates 46 and between the outward road surface 33 and the return road surface 34 of the conveyor 15 conveyor 15, but the operating lever 103 is operated by the operator. It is located outside the side plate 46 on the left side so that it can be easily operated from the side of the conveyor 15.

Next, as shown in FIG. 9, in the conveyor 15 in which the conveyor front portion 15a can rotate in the vertical direction with respect to the conveyor rear portion 15b about the left and right rotation center axes 22L and 22R, the conveyor front portion 15a The left rotation center shaft 22L is fixed to the left side plate 46a, and the right rotation center shaft 22R is fixed to the right side plate 46a of the conveyor front portion 15a. The left rotation center shaft 22L is formed with a screw hole 131 extending in the axial direction, and the right rotation center shaft 22R is formed with a pin hole 132 extending in the radial direction. ..

As is clear from FIGS. 5 and 9, the right rotation center shaft 22R is formed of a shaft insertion hole 134 of the right side plate 46b of the rear side portion 15b of the conveyor and a fixing plate 135 fixed to the outer surface of the side plate 46b. It is inserted through the shaft insertion hole 136. In addition, for example, a tubular member such as a collar may be arranged on the outer peripheral side of the rotation center shaft 22R.

Then, on the tip end side of the rotation center shaft 22R, the tip end portion of the clutch wire 139, which is a stop member for stopping the conveyor 15 when the conveyor front side portion 15a rotates upward around the rotation center shaft 22R. The retaining connection member (retaining member and wire connecting member) 141 to which the is connected is fixed by a fixing pin 140 which is a fixing member.

That is, the retaining connection member 141 prevents the rotation central shaft 22R fixed to the conveyor front side portion 15a and inserted into the shaft insertion holes 134 and 136 of the conveyor rear side portion 15b from coming out of the shaft insertion holes 134 and 136. In addition to preventing it, when the conveyor front side portion 15a is rotated upward (when rotating to a non-working state), it rotates together with the rotation center shaft 22R and pulls the clutch wire 139 to stop the operation of the conveyor 15. ..

Although the base end side of the clutch wire 139 is not shown, the clutch wire 139 is connected to a clutch for stopping the conveyor, and the clutch wire 139 is pulled by the retaining connection member 141 when the front portion 15a of the conveyor is rotated upward. Is cut off and the transport unit 16 of the conveyor 15 stops. Further, the clutch wire 139 is covered with a cover member 138 except for the tip end side and the base end side.

Then, as shown in FIG. 10, the retaining connection member 141 is fixed to the rotation center shaft 22R by the fixing pin 140, and is a cylindrical fixing portion 142 located coaxially with the rotation center shaft 22R, and the fixing portion. It has a connecting portion 143 integrally provided on the 142, and the tip portion of the clutch wire 139 is connected to the pin portion (protruding portion) 144 of the connecting portion 143.

The fixing portion 142 is formed in a cylindrical shape having an opening on both end surfaces that fits on the outer peripheral side of the round shaft-shaped rotation center shaft 22R. The fixing portion 142 is formed with two pin holes 146 facing (matching) the pin holes 132 of the rotation center shaft 22R. Then, the fixing pin 140 is inserted into the pin holes 132 and 146 facing each other from the outside in the radial direction, so that the retaining connection member 141 is fixed to the rotation center shaft 22R.

The connecting portion 143 includes a plate-shaped portion 147 fixed to the outer peripheral side of the axial end portion of the fixing portion 142, and a protruding pin portion 144 projecting from the tip end side of the plate-shaped portion 147 in the plate thickness direction. have. The base end portion of the pin portion 144 is fitted and fixed in the fitting hole 148 formed in the plate-shaped portion 147, and the tip portion of the pin portion 144 has a split pin hole 149 extending in the radial direction. It is formed. The axial direction of the pin portion 144 and the axial direction of the rotation center shaft 22R are parallel to each other.

Then, the pin portion 144 is fitted (inserted) into the annular portion 139a formed at the tip of the clutch wire 139, and then the split pin (pin member) 150 is inserted into the split pin hole 149 and mounted. As a result, the annular portion 139a of the clutch wire 139 is rotatably fitted and connected to the pin portion 144 of the connecting portion 143 (see FIG. 5). Although the split pin 150 is used in the illustrated example, for example, a stopper member having each shape such as a C-shape or an E-shape may be used.

The left rotation center shaft 22L is the same as the right rotation center shaft 22R described above, that is, the shaft insertion hole 134 of the left side plate 46b of the rear side portion 15b of the conveyor and the fixing plate 135 fixed to the outer surface of the side plate 46b. It is inserted through the shaft insertion hole 136. Unlike the rotation center shaft 22R on the right side, a screw hole 131 is formed in the rotation center shaft 22L on the left side, and a washer 152 for retaining is formed by screwing a bolt 151 into the screw hole 131. Is fixed to the fixing plate 131. The mounting plates 153 of the machine frame 12 are attached to the left and right fixing plates 135 by mounting tools 154 such as bolts (see FIG. 5).

Here, FIGS. 11A to 11C are rotation views of the conveyor front side portion 15a with respect to the conveyor rear side portion 15b, and the wire length shown in FIG. 11A (the length of the tip side portion of the clutch wire 139). La is, for example, "109 mm", the wire length Lb shown in FIG. 11 (b) is, for example, "117 mm", and the wire length Lc shown in FIG. 11 (c) is, for example, "119 mm".

Then, when the conveyor 16 of the conveyor 15 is operating (rotating), the conveyor front portion 15a of the conveyor 15 is in an extension operation of the cylinder 21 as shown in FIGS. 11A to 11C. Based on this, the conveyor rotates upward to a predetermined position with respect to the rear portion 15b of the conveyor about the rotation center shaft 22 (22L, 22R), and a desired non-working state is obtained.

At this time, the retaining connection member 141 rotates together with the rotation center shaft 22R to pull up the clutch wire 139 while functioning as a retaining for the rotation center shaft 22R. As a result, the clutch for stopping the conveyor is switched from the on state to the off state, and the conveyor 16 of the conveyor 15 is stopped.

When the conveyor front portion 15a rotates downward around the rotation center shaft 22 (22L, 22R) due to the contraction operation of the cylinder 21 and returns to the working state, the clutch wire 139 also returns to the original state, and the clutch wire 139 also returns to the original state. As a result, the clutch is engaged and the conveyor 16 of the conveyor 15 operates. The configuration is not limited to this, and for example, a configuration that requires a lever operation by an operator to operate the conveyor 15 again may be used.

Next, the operation and the like of the harvester 11 described above will be described.

When the harvester 11 is moved forward (in the direction of travel shown in FIG. 1) so that the left and right gauge wheels 24 run on the hem of the ridge by the operation of the crawler 14 in the field, the harvested product W in the soil of the ridge in the field W. Is dug out of the soil of the ridge by the excavation blade 23 of the front side portion 15a of the conveyor, and the excavated harvest W is collected by the transport portion 16 located over the front side portion 15a of the conveyor and the rear portion 15b of the conveyor. The conveyor is transported in the transport direction, and is manually picked up from the transport unit 16 by a worker sitting on the seat 26 during the transport and stored in the container.

Here, for example, in the case of folding back at the end of the field, the front side portion 15a of the conveyor is rotated around the central axis 22 by the cylinder 21 as shown in FIG. 11 while the transport portion 16 of the conveyor 15 is operating. When the clutch wire 139 is rotated upward as above, the clutch wire 139 is pulled by the retaining connection member 141 against the urging force of an urging member (not shown) such as a spring, the clutch is disengaged, and the transport portion 16 of the conveyor 15 is operated. Stop once.

Then, after the conveyor 14 is swiveled by the crawler 14 in a state where the transport portion 16 of the conveyor 15 is stopped, when the conveyor front side portion 15a is rotated downward around the rotation center axis 22, the clutch wire 139 is urged by a spring or the like. It is returned to the original state by the urging force (not shown), the clutch is engaged, and the conveyor 16 of the conveyor 15 is operated again. Therefore, the harvesting work of the harvested product W can be resumed. For example, a push-pull wire may be used as the clutch wire 139. In this case, the push-pull wire is pushed back by the retaining connection member 141 to return to the original state.

Further, for example, after the work is completed, as shown in FIGS. 6 and 7 (c), the front side portion 15a of the conveyor is rotated upward by the cylinder 21 to put it in a non-working state, and then the attachment / detachment pin 77 is fixed. The safety cover member 76 is fixed to the side plate 46b of the rear side portion 15b of the conveyor by inserting it into 79, 91, 92 and inserting the R pin 93 into the tip side hole 83 of the attachment / detachment pin 77. This makes it possible to regulate (prevent) the downward rotation of the conveyor front portion 15a in the non-working state by using the safety body 71. Further, the small and lightweight harvester 11 shown in FIG. 6 can be mounted on the loading platform of a light truck, which is a small cargo vehicle.

Then, according to such a harvester 11, the retaining connection member 141 that prevents the rotation center shaft 22R from coming out of the shaft insertion holes 134 and 136 and moves the clutch wire 139 when the front side portion 15a of the conveyor is rotated upward is provided. Therefore, the number of parts can be reduced, and therefore the weight and cost can be reduced.

Further, since the retaining connection member 141 has a cylindrical fixing portion 142 fixed to the rotation center shaft 22R and a connecting portion 143 to which the clutch wire 139 is connected, the retaining connection member 141 rotates. The clutch wire 139 can be properly operated by rotating integrally with the central shaft 22R.

Further, since the retaining connection member 141 can be fixed to the rotation center shaft 22R simply by inserting the fixing pin 140 into the pin holes 132 and 146, the retaining connection member 141 can be easily attached.

On the other hand, even if the non-working state (retracted state) conveyor front side portion 15a tries to rotate downward with respect to the conveyor rear side portion 15b due to its own weight due to a failure of the cylinder 21, the non-working state conveyor front side portion 15a Since downward rotation (fall due to its own weight) is regulated by the safety body 71 in a fixed state, a fall prevention member separate from the safety body 71 is not required, and the number of parts can be reduced accordingly. It is possible to further reduce the weight and cost.

Further, by replacing the attachment / detachment pin 77 from the work hole 78 to the fixing holes 79, 91, 92, the safety cover member 76 can be easily and surely fixed to the rear side portion 15b of the conveyor, and the operator can attach / detach it. By replacing the pin 77, it is possible to confirm (consciously) fix the safety cover member 76 and prevent forgetting to fix it.

Further, the detachable pin 77 slides in a state where the lower end thereof is in linear contact with the upper surface 87a of the upper plate portion 87 of the side plate 46 (46b) of the rear side portion 15b of the conveyor. It can slide smoothly with less frictional resistance than the structure that slides. For example, the detachable pin 77 may move on the upper surface 87a while rotating.

In the above embodiment, the retaining connection member has been described in which the connecting portion is fixed to the fixed portion fixed to the rotation center shaft, but for example, the connecting portion may be integrally provided on the fixed portion. Further, for example, a configuration in which a protruding portion (pin portion or the like) is integrally provided on the plate-shaped portion of the connecting portion may be used.

Further, the configuration is not limited to the configuration in which the retaining connection member is fixed to the rotation center shaft by the fixing pin, and the configuration may be fixed by a fixing member other than the pin, or may be fixed by, for example, a screw or welding. good.

11 Harvester
15 Conveyor as a means of transporting harvested products
15a Conveyor front part, which is the first transport part
15b The rear part of the conveyor, which is the second transport part
22R Rotation center axis (right side)
134, 136 shaft insertion holes
139 Clutch wire that is a stop member
140 Fixing pin that is a fixing member
141 Retaining connection member
142 Fixed part
143 Connection
144 Pin part that is a protruding part

Claims (5)

A harvest material transporting means having a first transporting portion and a second transporting portion, wherein the first transporting portion can rotate in the vertical direction with respect to the second transporting portion about a rotation center axis.
A stop member for stopping the harvest transport means and
A retaining connecting member to which the stopping member is connected is provided.
The rotation center shaft is fixed to the first transport portion and inserted into the shaft insertion hole of the second transport portion.
The harvester is characterized in that the retaining connection member prevents the rotation center shaft from coming out of the shaft insertion hole and moves the stopping member when the first transport portion is rotated upward. The retaining connection member is
A fixed part fixed to the rotation center axis and
The harvester according to claim 1, wherein the stop member has a connecting portion to which the stopping member is connected. The fixed portion is formed in a cylindrical shape that fits on the rotation center axis.
The harvester according to claim 2, wherein the connecting portion is provided on the axial end side of the fixed portion. The stop member is a clutch wire,
The harvester according to claim 2 or 3, wherein the tip end portion of the clutch wire is connected to a protruding portion of the connecting portion. The harvester according to any one of claims 1 to 4, further comprising a fixing member for fixing the retaining connection member to the rotation center axis.

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