JPH04129727U - Vertical transport device for seedlings on a seedling stand - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention makes it possible to easily supply seedlings to a seedling stand. [Configuration] On/off clutch for drive shaft 96 of seedling feeding belt 76
103 and a brake mechanism 102, and a seedling replenishment lever 121 that can operate these at the same time.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a device for vertically transporting seedlings on a seedling stand installed in a rice transplanter. Ru.

0002

[Conventional technology]

Conventionally, on the seedling stand installed in rice transplanters, a seedling feeding belt on which the seedling mat is placed is used. is supported by the drive side roller and the driven side roller, and the drive side roller is opposed to the drive shaft. There are some that are always supported in a connected state.

0003

[Problem that the idea aims to solve]

However, when the number of remaining seedlings on the seedling feeding belt decreases and replenishing seedlings is required, , since the seedling feeding belt remains in a stopped state, the worker must manually transport the supplied seedlings. Therefore, it was necessary to supply the seedlings to the lower position of the seedling feeding belt.

0004 Therefore, not only the seedling planting work cannot be done efficiently, but also the seedling mat during planting A gap occurs between both seedling mats because the connection with the supplied seedling mats is not smooth. This led to problems such as stock shortages.

[0005]

[Means to solve the problem]

This invention positions the driving side roller and the driven side roller on the seedling platform on which the seedling mat is placed. A seedling feeding belt that vertically feeds the seedling mat between the driving and driven rollers. In the vertical conveyance device for seedlings on a seedling stand formed by winding the drive side roller; An on/off clutch is provided between the drive shaft that drives the drive side roller intermittently. The brake mechanism is equipped with a brake mechanism that stops the drive roller. A release means for releasing the brake mechanism is provided, and the release means for releasing the on/off clutch is also provided. It is characterized by the provision of a seedling supply lever that simultaneously releases the brake mechanism. The present invention aims to provide a vertical conveyance device for seedlings on a seedling stand.

[0006]

【Example】

Embodiments of the present invention will be specifically described based on the drawings.

[0007] A shown in FIG. 1 is a riding rice transplanter, and the riding rice transplanter A has a self-propelled traveling section 1 The planting part 2 is connected to the rear of the machine via an elevating link mechanism 3, and the planting part 2 is connected to the elevating hydraulic system. It can be raised and lowered by a cylinder 4.

[0008] As shown in FIGS. 1 and 2, the traveling section 1 has an engine mounted on the front part of the fuselage frame 10. 11, and a driving section 12 is provided at the rear.

[0009] Then, the mission case 13 is connected to the engine 11 at the rear lower side of the fuselage frame 10. It is installed in a dynamically connected manner.

0010 In addition, on the lower front side of the fuselage frame 10, there are left and right floors, respectively, toward the left, right, lateral, and outer sides. The front axle cases 15, 15 are installed protrudingly, and the front wheels 16, 16 are attached to the tips of the cases 15, 15. I'm wearing it. 19 interlocks and connects the front axle case 15 and the transmission case 13 This is a power transmission shaft.

[0011] In addition, the rear axle case 17 is attached to the mission case at the rear of the fuselage frame 10. The rear wheels 18 and 18 are attached to the left and right sides of the same case 13, respectively. It's on.

0012 20 also serves as a floor surface, gear shift guide, fender, seat mounting plate 20a, etc. It is a single-piece body made of highly rigid synthetic resin such as FRP, and machine-molded. It is stretched over the body frame 10.

[0013] Also, 21 is a bonnet, which includes the engine 11 and the steering wheel of the driving section 12, which will be described later. Covers 23 shafts.

[0014] Further, the above-mentioned driving section 12 has a steering shaft 23 erected immediately after the engine 11. The handle 24 is attached to the upper end of the shaft 23, and the handle 24 is attached directly behind the handle 24. A seat 25 is placed on the seat mounting plate 20a located at .

[0015] In addition, 30 is a gear shift lever located on the left side of seat 25, and 31 is on the left side of bonnet 21. The sub-shift lever 32, which protrudes upward from the side, is the planting part located on the right side of the seat 25. Lifting lever, 33 is the clutch pedal located on the left side of the bonnet 21, 34 is the bonnet This is the brake pedal located on the right side of cut 21.

[0016] In addition, as shown in FIG. The front end of the case 40 is attached so that it can swing left and right, and the float 41 is mounted below the case 40. Attach the seedling stand 42 above the case 40, and attach the planting claw to the rear end of the case 40. 43 is installed. 44 is between mission case 13 and planting mission case 40 This is the transmission shaft interposed in the

[0017] In addition, the elevating link mechanism 3 is located at the top and bottom of the rear of the aircraft frame 10, respectively. The front end of link 51 and the front ends of left and right lower links 45, 45 are moved upward by pivots 51a, 45a, respectively. The rear end of the top link 51 and the rear ends of the left and right lower links 45, 45 An elevating link mechanism side hitch part 61 is interposed between the two, and the hitch part 61 is placed in front of the planting part 2. It is removably connected to the planting side hitch part 49 which is installed upright.

[0018] At the front ends of the left and right lower links 45, 45, there are left and right lifting arms 46, 46, respectively. is installed in an upright manner, between the upper ends of both arms 46, 46 and the midway part of the fuselage frame 10. An elevating hydraulic cylinder 4 is interposed between them, and between the upper ends of both arms 46, 46 and the left and right lower Connecting rods 48, 48 are interposed between the rear ends of the links 45, 45.

[0019] In addition, in FIGS. 3 and 4, 70 is located at the back side of the lower end 42-1 of the seedling stand 42. The seedling stand support rail has a downward concave shape and can be moved left and right on the square support rod 71. It is placed.

[0020] 72 is a seedling take-out plate that is integrally connected to the support frame 71, and has a cutter for operating the planting claw 43. A groove 73 is provided. 74 intermittently vertically feeds the seedling mat 75 on the seedling stand 42 to A vertical conveyance device that feeds the seedlings to the side of the seedling take-out plate 72, which includes the seedling feeding belt 76 and the upper part of the drive side. It is composed of a roller 77, a lower driven roller 78, and the like.

[0021] The vertical conveyance device 74 has a structure in which the drive roller 77 side is intermittently driven. At the same time, place the seedling mat 75 on the slack side 76-1 of the seedling feeding belt 76, and hold the seedling mat 75 vertically. It is configured to be transported. 76-2 is the tension side of the seedling feeding belt 76.

[0022] In addition, the driven roller 78 is configured to have a small diameter, and the distance between it and the planting case 79 is reduced. It is configured so that it can be done. 80 is a vertical feed drive lever installed on the planting case 79 side. An intermediate cam 81 provided on the back side of the seedling stand 42 can be intermittently pushed upward. .

[0023] 82 is a cam connecting member that integrally attaches the intermediate cam 81, and is a cam connecting member that straddles the seedling feeding belt 76. is formed.

[0024] The intermediate cam 81, cam connecting member 82, etc. constitute a cam mechanism 81A. .

[0025] 83 is a pivot shaft that supports the cam connecting member 82, and 84 is a pivot shaft that supports the intermediate cam 81 and the cam connecting member 82. A cam return spring 85 presses downward, and 85 is a stopper gong provided on the cam connecting member 82. It is a stopper that receives the spring 86, and is adjustable with bolts and nuts. Ru. 87 is a mounting seat for mounting the stopper rubber 86, and 88 is a stopper mounting plate.

[0026] 89 is a lower operating arm connected to the intermediate cam 81, and 90 is a driven roller shaft.

[0027] In addition, 91 is a one-way clutch body installed on the drive side roller 77, and the upper operating arm 92 and the lower A link mechanism 93A is constructed by interlockingly connecting the partial operating arm 89 with an intermediate link 93. There is.

[0028] In addition, the link mechanism 93A has the arm length R1 of the upper operating arm 92 and the lower operating arm. The arm length R2 of the cam 89 is formed so that R1<R2, and the rotation of the intermediate cam 81 is The amount is amplified and transmitted to the upper actuating arm 92 side.

[0029] In addition, 94 is a clutch shaft provided on one side clutch body 91, which is connected to the left and right sides through a joint 95. The drive shafts 96, 96 are interlocked and connected, and both ends of the drive shafts 96, 96 have clamps. A clutch body 98 having a claw 97 is fixed via a pin 99.

[0030] 100 is a bearing that pivotally supports the clutch body 98, and 101 is fitted concentrically to the outer periphery of the drive shafts 96, 96. The drive roller shaft is hollow and long in the horizontal direction. A drive-side roller 77 is interlocked and connected for each strip. 102 prevents the drive shaft 96 from reversing. 103 is a brake mechanism that stops the drive side roller 77, and 103 is a brake mechanism that stops the driving roller 77. This is an on/off clutch that engages with the clutch pawl 97, and is slidably connected to the drive roller shaft 101. and is always in the closed state due to the spring body 104.

[0031] 105 is a spring receiver for receiving the spring body 104, and 106 is for operating the on/off clutch 103. It is an L-shaped on/off link that can be operated freely using the hand lever 107A via the wire 107. ing.

[0032] 108 is the left roller that constitutes the drive side roller 77, and the right roller is symmetrically formed. The roller 109 and the central connecting portion 110 are connected to each other while being combined. And the same left low The roller 108 and the right roller 109 each have a large diameter at both ends, and a small diameter at the central connecting part 110. A gear-shaped uneven portion 112 is formed on the circumferential surface of the central recessed portion 111.

[0033] 113 is a convex portion formed at the center of the back surface of the seedling feeding belt 76, which is similar to the concave and convex portion of the upper roller 77. 112 and can be freely engaged. 114 is a convex portion provided on the surface of the seedling feeding belt 76; It is configured to be bitten into the bottom of the seedling mat 75.

[0034] 115 is a bearing portion that supports the drive roller shaft 101 at the rib 116 position of the seedling stand 42; It is fixed to a back cover 117 that closes the back surface of the rib 116. 118 supports the driven roller shaft 90 The bearing part 119 is fixed to the center of the rear surface of the seedling stand 42 in a horizontally extending manner. This is a reinforcing plate.

[0035] Also, 120 is a seedling adjustment link that adjusts the amount of seedlings taken.

[0036] The brake mechanism 102 includes an L-shaped release link 102-1 and a brake. A release means 102A is provided which includes a body 102-2 and a brake spring 102-3.

[0037] In addition, 121 is for disengaging the above-mentioned on/off clutch 103 and releasing the brake mechanism 102. It is a seedling supply lever that can be operated at the same time, and the above solution is connected via connecting wires 122 and 123. It is connected to the exclusion link 102-1 and the entry/exclusion link 106. In addition, the above seedling supply lever 121 is arranged at the front of the seedling stand 42 at a position close to the driver.

[0038] The embodiment of the present invention is configured as described above, and the seedling mat 75 on the seedling stand 42 is lowered. When vertically feeding in the direction shown in FIG. Rotate to push the intermediate cam 81 upward. Then, the cam connecting member 82 and the lower operation The arm 89 is integrally operated upward.

[0039] Therefore, via the intermediate link 93, the upper actuating arm 92 of the clutch body 91 is Rotate upward. This causes one clutch body 91 to rotate clutch shaft 94 clockwise. At the same time, the left and right drive shafts 96, 96 are simultaneously rotated. And shown in Figure 5 Similarly, at the shaft ends of the drive shafts 96, 96, a clutch body 98 and an on/off clutch 103 are connected. If the rollers are connected, the drive roller shaft 101 rotates together.

[0040] Then, the driving roller 108 that drives the seedling feeding belt 76 rotates by a certain amount, The seedling mat 75 is vertically fed downward by the slack side 76-1 of the seedling feeding belt 76. Ru.

[0041] Additionally, when the vertical feed drive lever 80 is rotated downward and restored to its original state, the The intermediate cam 81, the cam connecting member 82, and the lower operating arm 89 are lowered by the cam return spring 84. It rotates depending on the direction and returns to its original state.

[0042] Also, since the lower actuating arm 89 is returned downward, the upper part of the clutch body 91 side Actuation arm 92 rotates counterclockwise. However, the one clutch body 91 is When rotating clockwise, it slips and does not drive the drive shafts 96,96.

[0043] Therefore, the drive roller shaft 101 and the drive side roller 108 are operated by the brake mechanism 102. It maintains a stopped state depending on the situation.

[0044] Then, by repeating the above operation, the seedling mat 75 is sequentially conveyed vertically to the side of the seedling take-out plate 72. This is what you send.

[0045] In addition, when the remaining amount of the seedling mat 75 during planting becomes low, the replenishing mat 75 can be placed on the seedling stand 42. Supplied from the top. In this case, the driver operates the seedling supply lever 121. Therefore, the on/off clutch 103 is disengaged and the brake mechanism 102 is released at the same time. Thus, the driving side roller 77 and the seedling feeding belt 76 are brought into a state where they can idle. And supply The seedling mat 75 can be automatically conveyed to the lower side and set.

[0046] As described above, according to the above embodiment, the drive-side roller 77 of the seedling stand 42 and the drive-side roller 77 of the seedling stand 42 An on/off clutch 103 is provided between the drive shaft 96 that drives the roller 77 intermittently, and , a brake mechanism 102 is provided to stop the driving roller 77, and the brake mechanism 10 2 is provided with a release means 102A for releasing the brake mechanism 102, and also has a release means 102A for releasing the brake mechanism 102. Seedling supply that simultaneously cuts the latch 103 and releases the brake mechanism 102 Since this is a vertical transport device for seedlings on a seedling stand equipped with a lever 121, the seedlings are not placed on the seedling stand 42. When replenishing the mat 75, simply operate the seedling replenishment lever 121 to replenish the replenishing seedling mat. It is also possible to set the mat 75 on the seedling mat 75 during planting without any gaps. It is. In addition, normally, the drive side roller 77 is securely moved by the brake mechanism 102. Since it remains in a stopped state, the seedling mat 75 placed on the seedling feeding belt 76 will not fall off. It is something that is kept without any restrictions.

[0047] Further, FIGS. 6 and 7 show other embodiments, and in the figures, 130 indicates the upper side. The seedling feeding belt is composed of a seedling feeding belt 131 and a lower seedling feeding belt 132. The side seedling feed belt 131 is not connected to the intermittent drive mechanism and becomes an idle belt. ing. 133 is an adjustable brake provided on the roller shaft 134 of the upper seedling feeding belt 131. be.

[0048] 135 is an upper pulley that supports the upper side of the lower seedling feeding belt 132, and 136 is an upper pulley that supports the lower side. The lower drive pulley rotates intermittently by the operating cam 137 to feed the lower seedlings. It rotates the belt 132.

[0049] Therefore, in the past, when replenishing seedlings, the seedling mat caused friction with the bottom plate of the seedling stand. Because the seedlings are compressed and shrink vertically, the density of the seedlings varies and grows. However, according to the above example, the amount of seedlings planted during seedling supply was Since the compression of the mat is eliminated, the number of seedlings to be planted becomes stable. Ma In addition, the braking force of the adjustable brake can be changed depending on the slippage of the seedling mat. , which can prevent seedlings from collapsing.

[0050]

[Effect of the idea]

According to the present invention, when replenishing seedlings on the seedling stand, it is easy to operate the seedling supply lever. The seedlings can be automatically set without any gaps. In addition, the drive side roller is usually kept in a stopped state reliably by a brake mechanism. Because of this, the seedling mat placed on the seedling feed belt is securely held without falling off. It is something that will be done. In addition, the entire seedling feeding device has a simple structure and is easy to operate. At the same time, the work of planting seedlings can be carried out efficiently.

[Brief explanation of drawings]

FIG. 1 is an overall side view of a riding rice transplanter equipped with a seedling stand according to the present invention.

[Fig. 2] A plan view of the rice transplanter.

FIG. 3 is a cross-sectional side view of essential parts of the seedling stand according to the present invention.

FIG. 4 is a rear view of the same.

FIG. 5 is a rear view of the main parts of the present invention.

FIG. 6 is a cross-sectional side view of main parts showing another embodiment of the seedling stand.

FIG. 7 is a plan view of the main parts.

[Explanation of symbols]

42 Seedling stand 75 Seedling mat 76 Seedling feeding belt 77 Drive side roller 78 Driven roller 96 Drive shaft 102 Brake mechanism 103 On/off clutch 102A Release means

Claims (1)

[Scope of utility model registration request] Claim 1: A driving roller 77 and a driven roller 78 are positioned on the seedling table 42 on which the seedling mat 75 is placed, and the seedling mat 75 is vertically fed by the driving roller 77 and the driven roller 78. In the vertical conveyance device for seedlings on the seedling stand 42, which is formed by wrapping a seedling feeding belt 76 around the seedling conveyor belt 76, an inlet/cut device is provided between the drive-side roller 77 and the drive shaft 96 that drives the drive-side roller 77 intermittently. A clutch 103 is provided, and a brake mechanism 102 for stopping the driving roller 77 is provided.
A release means 102A for releasing the brake mechanism 102 is provided, and a release means 102A for releasing the brake mechanism 102 is provided, and the brake mechanism 10
2. A vertical transfer device for seedlings on a seedling stand, characterized by being provided with a seedling supply lever 121 that simultaneously performs both of the above release operations.