JPH0539216U - Ambulatory transplanter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a device in which an operation rod provided between an operation panel above a handle portion and a guide plate below is arranged linearly along the handle portion to prevent malfunction. . [Structure] A handle portion 9 is arranged at the rear of the seedling placing table 7, a planting device 8 is provided below, and operation members 11c, 1 having one end supported on an operation panel 11 side provided at the handle portion 9 are provided.
A guide plate 1 having a lower part of 1d provided below the seedling stand 7
A walk-type transplanter that passes through the second opening 12a.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention is based on the operation part composed of the work clutch lever and the main clutch lever on the operation panel provided near the handle provided at the rear of the mobile agricultural machine such as the walk type rice transplanter, and below the seedling table. The present invention relates to a guide means for a lower portion of an operation member including an operation rod and an operation wire that connect with an operated portion that is provided by bypassing.

[0002]

[Prior Art]

 A transplanter such as a walk-behind rice transplanter, which is one of the mobile agricultural machines, has a power unit consisting of an engine and a transmission at the front of the machine frame arranged in the front-rear direction, and wheel transmissions on both sides below the power unit. The wheels are placed through the case, the seedling mounting table is tilted rearwardly behind the power unit, and the handle is arranged at the rearmost rear portion of the seedling mounting base. A wheel that supports a float that can move up and down downwards, changes the rotation of the engine through a transmission, and is supported by a transmission case that is vertically swingably supported on the front side of the machine frame. It is configured to rotate and move forward while performing seeding work while supplying seedlings to the planting claws that are operating below the seedling mount.

A handle portion is provided obliquely rearward of the rear of the body frame, and an operation panel is provided at the tip of the handle portion at the lower center of the handle extended in a V shape. The work clutch lever (planted clutch lever) and the main clutch lever (travel clutch lever) are installed in the operation wire between these levers and the operated part that bypasses the lower part of the handle part. Are connected with.

[0004]

[Problems to be solved by the device]

 An operation panel is arranged above the handle, and the operated clutch is composed of a work clutch lever and a main clutch lever provided on the operation panel, and various links covered by a guide plate provided below the handle. An operation wire is connected to the members. However, it is difficult to arrange this operation wire neatly along the handle portion, and it is necessary to arrange a large number of supporting members for this operation wire, which poses a problem that it is also restricted in terms of design.

The present invention solves at least the problem of the supporting means of the operation wire arranged along the handle part, and connects the operation panel provided on the upper part of the handle part and the operated part provided on the lower part. It is an object of the present invention to provide a walking type transplanter excellent in design as well as a means for guiding while protecting the lower part of the operation member.

[0006]

[Means for Solving the Problems]

 A walk-behind transplanter according to the present invention for achieving the above-mentioned purpose has a body frame and a handle part as a skeleton, and supports a vehicle wheel via wheel transmission cases on both sides of the front part of the body frame and rearwardly. A seedling table is provided and a planting device is provided below it, and the lower part of the operation member, one end of which is supported by the operation panel side of the handle, is located below the seedling table and the guide plate has an opening. It is configured by passing through.

A relay link for the operated part is provided below the guide plate, but a place where the handle part and the operated part cannot be directly connected by an operating member such as a connecting rod. In addition, such a relay link is provided to detour, and at that time, the operation member is guided by the guide plate.

[0008]

[Work]

 The lower part of the operation member consisting of an operation rod or operation wire fixed at one end to the operation panel is covered with this guide plate through an opening formed in the center of the guide plate provided below the seedling table. Since it is connected to the relay link for use, there is no malfunction. Further, when the operating member is the operating rod, since it is protected by this guide plate, no bending occurs and the operating rod can be arranged linearly.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. The walk-behind rice transplanter 1 has a body frame 3 supported by wheels 2 as shown in FIG. 1, and a float 4 is arranged below the body frame 3 along the longitudinal direction thereof. There is. A power unit including an engine 5 and a mission case 6 is arranged in front of the body frame 3, and a seedling stand 7 on which mat seeds or tape seedlings are placed is arranged behind the body frame 3. It is supported so as to be laterally movable in the machine width direction, and a planting device having a planting claw 8 is arranged in front of this seedling platform 7. Further, behind the seedling mounting table 7 on the rear side of the machine frame 3, a handle portion 9 is obliquely extended so as to be parallel to the seedling mounting table 7. The handle portion 9 is composed of a post portion 9a and a handle 9b, a side clutch lever 10 is provided at an end portion of the handle 9b, and an operation panel 11 is provided at a lower central portion of the handle 9b. Has been done.

A working clutch lever 11a for planting work is provided on the right side of the operation panel 11, and a main clutch lever 11b for traveling is provided on the left side. An apron 7a is arranged below the seedling table 7, and a guide plate 12 is arranged below the rear surface of the seedling table 7. On this guide plate 12, a planting depth adjusting lever 13 for adjusting the space between the body frame 3 and the float 4, and an apron 7a which is moved up and down with respect to the seedling platform 7 to be scraped by the planting claws 8. A scraping amount adjusting lever 14 is provided so as to adjust the amount.

Further, a vertical feed lever 15 for intermittently transferring the mat seedlings in the vertical direction is arranged on a side portion of the guide plate 12, and the vertical feed lever 15 is connected to the mission case 6 by a connecting rod 16. It is connected to a vertical feed drive unit 17 protruding from the side of the vertical feed drive unit 17, and the vertical feed drive unit 17 is intermittently driven to intermittently rotate the vertical feed lever 15 in the standing direction to thereby raise the seedling table. By driving the vertical feeding device 18 provided on the back surface of the mat 7, a predetermined amount of mat seedlings are transferred to the apron 7a side.

Reference numeral 20 is a bumper weight, 21 is a fuel tank, 22 is a gear shift lever, 23 is a hydraulic actuator for moving the wheels 2 up and down, 24 is a swing arm, and 25 is one end fixed to the swing arm 24. The wheel transmission case is provided with an axle for supporting the wheel 2 at the other end, and the mechanism for transmitting these wheels is similar to that used in the conventional device.

FIG. 2 is a perspective view of the operation system connecting mechanism. Most of these members are covered with the guide plate 12. This figure shows an apron support frame 7b for supporting the apron 7a. The back part of is drawn. An apron front and rear plate 7c is fixed to the back surface of the apron 7a, and a crank rod 7e whose both ends are supported by a bracket 7d fixed to an apron support frame 7b has an engaging portion 7f formed on the apron front and rear plate 7c. Engaged. A scraping amount adjusting lever 14 is fixed to the crank rod 7e. When the scraping amount adjusting lever 14 is rotated in the direction of arrow S, the apron 7a descends to the lower end of the seedling placing table 7 and the planting claw 8 scratches. The amount of seedlings taken increases. If the lever operation is performed in the opposite way, the scraping amount will be reduced.

A vertical feed lever 15 is provided on a side portion of the guide plate 12, and a bracket having a U-shaped cross section provided at the other end of a connecting rod 16 whose one end is connected to a vertical feed drive unit 17 provided in the power unit. A pin 16b (connecting member) provided on 16a is inserted into a vertical groove 16c provided on the vertical feed lever 15, and is engaged with an uneven portion 16d (engaging portion) provided on the front portion of the vertical groove 16c for positioning. It is supposed to be done.

Further, the crank rod 7e is provided with a regulation rod 7g (regulation member), which supports the connecting rod 16 only from below. Therefore, the upper and lower positions of the pin 16b are determined by the restriction rod 7g. When the connecting rod 16 is pulled by the vertical feed drive unit 17, the vertical feed lever 15 stands up in the direction of arrow S, and the protrusion 15a provided on the side surface of the vertical feed lever 15 drives the vertical feed device 18 of FIG. 18a is kicked up and the mat seedlings placed on the seedling placing table 7 are transferred downward according to the amount of movement of the vertical feed lever 15. The seedling feeding operation is performed only when the seedling mounting table 7 is moved to the outermost side.

A guide plate 12 is provided below the handle portion 9, and a first fulcrum shaft 28 is laterally supported by a front portion of the guide plate 12, and a vertical feed lever is provided at an end portion of the first fulcrum shaft 28. -15 is provided. The first fulcrum shaft 28 is originally provided for the vertical feed lever 15, but in the embodiment of the present invention, relay links 29 and 30 are provided as detour means. The operating rod 11c, one end of which is connected to the work machine clutch lever 11a provided on the operation panel 11, is connected to the relay link 30, and the operating rod 11d, one end of which is connected to the main clutch lever 11b, is connected to the relay link. 30 are connected to each other. These relay links 29, 30 are connected to each operated member by operating rods as relay points or detour points.

As can be understood from FIG. 2, the vertical feed lever 15 is provided on the side of the relay link 29 provided at the end of the first fulcrum shaft 28, and the relay links 29 and 30 are connected to the first fulcrum shaft 28. The operation rods 11c and 11d are arranged at the central portion of the above, and this configuration prevents the operation rods 11c and 11d (or the operation member) from being bent to reduce erroneous operations.

As shown in FIG. 1, an opening 12a is provided at the center of the guide plate 12, and the operation rod 11c connected to the levers 11a and 11b on the operation panel 11 is provided in the opening 12a. , 11d are passed through in a collective state, the guide plate 12 protects the detour means, and the opening 12a forms a kind of guide member as an operating member.

FIG. 3 and FIG. 4 show an operation system connecting mechanism in which an operation portion and an operated portion are connected by an operation rod, and an operation connected to a work clutch lever 11 a provided on the operation panel 11. The rod 11c is connected to the operating rod 11e via a relay link 30 which is a relay point supported on the first fulcrum shaft 28, and the operating rod 11e passes through the second fulcrum shaft 31 and the operating rod 11f. It is configured to operate the planted clutch 32 that is the operated part. The main clutch lever 11b is connected to the main clutch 33 via an operating rod 11d, a relay link 29 supported by the first fulcrum shaft 28, and an operating rod 11g.

As can be seen from FIG. 3, the machine body frame 3 and the handle frame or the post portion 9a are connected in a staggered manner, but the operation rods 11e and 11g are bent in accordance with the machine body frame 3 and bent. C is formed and arranged along the side portion, and is arranged so as not to overhang in the lateral direction of the mobile agricultural machine as much as possible. In addition, the bow wire 35 is connected to the side claw levers 10 provided at both ends of the handle 9b, and the inner wires 100 and 101 of the bow wire 35 pass through the inside of the handle portion 9 and the swing member A provided on the machine body frame 3 is connected. , B, and the swinging members A, B swing by gripping the side clutch lever 10 to pull the operating rods 11h, 11g rearward so that the side clutch 34 in the mission case 6 is pulled. Each is configured to operate.

Further, in FIG. 2, a regulating rod 7g (regulating member) is fixed to a crank rod 7e fixed to a seedling scraping amount adjusting lever 14, and the regulating rod 7g reciprocates in a longitudinal feed direction. Although the connecting rod 16 for use in the above is supported from below and the regulation from above is omitted, this regulating rod or regulating member may be a member directly fixed to the scraping amount adjusting lever 14. In any case, the connecting rod 16 is moved up and down with respect to the first fulcrum shaft 28 in response to the rotation of the scraping amount adjusting lever 14, and the bracket 16a and the pin provided at the end of the connecting rod 16 are connected. It suffices to move the engagement position with 16b up and down in the vertical groove 16c. Further, the uneven portion 16d is preferably formed as a kind of rack matching the shape of the pin 16b which is the engaging member.

Since only the lower side of the connecting rod 16 to which reciprocating motion is given by the vertical feed drive unit 17 is supported by the regulating rod 7g as shown in FIG. 2, the regulating rod 7g is operated by operating the scraping amount adjusting lever 14. Even if the angle of the lever changes, the connecting rod 16 does not have a member for preventing the upward movement, and the position of the connecting rod 16 relative to the vertical groove 16c provided in the vertical feed lever 15 can be accurately set regardless of the rotation angle of the lever 14. Can be held.

FIG. 5 is a front view of the transmission case 40, and FIG. 6 is a side view of the transmission case 40. An ear portion 41 is integrally projected below the transmission case 40. The first hole 42, the second hole 43, and the third hole 44 are provided side by side. The first hole 42 forms a kind of bearing portion for inserting and supporting the lower end portion of the speed change lever 22 of FIG. Further, the second hole 43 shows a portion for locking the end portion of the spring for always pulling the planting clutch to the entrance side. Further, the third hole 44 indicates a hole for guiding the operation rod 11e in FIG.

[0024]

[Effect of the device]

 The walk-behind transplanter according to the present invention has a body frame and a handle portion as a skeleton, supports wheels through wheel transmission cases on both sides of the front portion of the body frame, and provides seedling pedestals at the rear, and the seedling mounting table is provided. A planting device is installed below the table, and the lower part of the operation member, one end of which is supported on the operation panel side of the handle, is placed through the opening of the guide plate below the seedling table. The following effects can be achieved.

A) One end is connected to the work clutch lever 11a and the main clutch lever 11b provided on the operation panel provided in the upper center part of the handle portion, and the operation member guided downward along the handle portion 9 Since the lower end of the (operation rod 11c, operation wire) passes through the opening 12a of the guide plate 12, these operation members can be arranged in a straight line parallel to the rear of the handle portion 9. The supporting member can be omitted or minimized, and the bypass portion of the operating member can be simply summarized.

(B) Since the operating member is guided to the opening 12a provided in the guide plate 12 that protects the relay point of the operating member, the bending of the operating member can be prevented and malfunction can be prevented. C) Since the operating members, particularly the operating rods 11c and 11d, are linearly arranged along the handle portion 9, a good design can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of a walking type transplanter according to an embodiment of the present invention.

FIG. 2 is a perspective view of a relay point portion of a connecting rod.

FIG. 3 is a plan view showing a main part of the ambulatory transplanter of FIG.

FIG. 4 is a side view of FIG.

FIG. 5 is a front view of a transmission case.

FIG. 6 is a side view of a transmission case.

[Explanation of symbols]

1 Pedestrian transplanter 3 Body frame 4 Float 5 Engine 7 Seedling stand 7a Apron 7b Apron support plate 7e Crank rod 7g Control rod (regulator member) 9 Handle part 10 Side clutch lever 11 Operation panel 11a Work implement clutch lever 11b Main clutch Lever 11c to 11h Operation rod 12 Guide plate 12a Opening 13 Depth adjusting lever with planting 14 Scraping amount adjusting lever 15 Vertical feed lever 16 Connecting rod 16a
Bracket 16b Pin 16c Vertical groove 16d Concavo-convex part (rack part) 17 Vertical feed drive unit 18 Vertical feed device 18a
Longitudinal feed cam 28 First fulcrum shaft 29,30 Relay cam 31
Second fulcrum shaft 32 Planted clutch 33 Main clutch 34
Side cutic 40 transmission case.

Claims (1)

[Scope of utility model registration request] 1. A body frame and a handle are used as a skeleton, and wheels are supported on both sides of a front portion of the body frame via wheel transmission cases, and a seedling stand is provided in the rear and planted below the seedling stand. Walk-type transplantation in which the lower part of the operation member, which is provided with an attachment device and whose one end is supported on the operation panel side provided on the handle part, is arranged so as to pass through the opening of the guide plate provided below the seedling table. Machine.