JPH11127638A - Folding device in rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a planting device in a rice transplanter dividing and folding plural strings in right and left end sides in a planting case driving planting claws prevent a misoperation of an auxiliary speed change lever for changing a planting elevation, work running in folding the planting part and surely fix a supporting frame and a revolving frame in storing. SOLUTION: This folding device in a rice transplanter has an arm 104 protruded from a revolving side of a folding mechanism and the arm is connected to a planting work lever with a wire 101, and the folding device is constructed to control the planting work in the folding. A length from an end part of an outer case 102 storing the wire 101 to a connecting part of the wire 101 and the arm 104 in the folding is made to be longer than the corresponding length in the work, and an one-touch type connecting mechanism composed of a hook member and an engage-fastening member is provided between a revolving frame and a fulcrum frame of the folding mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanting machine having a seedling table and planting claws for continuously planting.
The present invention relates to a safety structure of a folding part of a rice transplanter in which the entire left and right widths of a planting part such as a seedling mounting table are reduced.

[0002]

2. Description of the Related Art For example, in a multi-row rice transplanter such as a 10-row type, a plurality of rows such as two rows on the left and right outer sides of a planting section such as a planting case and a float are rotated upward by about 90 degrees together with a seedling mounting table. There is a means to fold inside the fuselage. In the above configuration, the planting portion and the sub-shift lever for planting raising / lowering and work traveling speed are independent, and when the planting portion is folded, a wire connected to the planting operation lever by a knob screw behind the driver's seat when the planting portion is folded. , The rotation of the planting operation lever connected to the wire is restricted, and the planting operation lever cannot be rotated to the “in” position.

[0003]

However, it is necessary to fix the wire with a knob screw in accommodating the planting portion.
The storing operation of the planting section becomes complicated. Also, if the wire is forgotten to be fixed, the planting clutch may rotate to the "on" position even when the planting section is in the housed state. Further, since the wire is solidified by inserting the knob screw into a loop provided at one end of the wire, it is necessary to pull out and insert the knob, and the knob may be lost.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a planting device for a rice transplanter which divides and folds a plurality of struts at both right and left ends of a planting case for driving a planting claw. The side and the planting work lever are interlocked and connected to regulate planting work at the time of folding, and the wire and the arm from the end of the outer case that stores the wire connecting the pivoting side of the folding mechanism and the planting work lever Is longer than that at the time of work.
Further, a one-touch type coupling mechanism including a hook member and an engagement tightening member is provided between the pivot frame and the fulcrum frame of the folding mechanism.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of the entirety, and FIG. 2 is a plan view of the same. In FIG. 1, reference numeral 1 denotes a traveling vehicle on which an operator rides. A front wheel 6 for traveling is supported via an axle case 5, and a rear axle case 7 is connected to a rear portion of the transmission case 4 to support a rear wheel 8 for traveling on the rear axle case 7. And
A spare seedling mounting table 10 is mounted on both sides of the hood 9 covering the engine 2 and the like, and the transmission case 4 and the like are covered by a body cover 12 on which an operator rides via a step 11. A steering handle 14 is provided in front of the driver's seat 13 and at the rear of the hood 9.

In the figure, reference numeral 15 denotes a seedling mounting table 1 for planting 10 rows.
6 and a plurality of planting claws 17 and the like. The planting case 20 is provided with a front-tilt type seedling mounting table 16 made of a synthetic resin having a front height and a low height through a lower rail 18 and a guide rail 19.
And a rotary case 21 that is slidably reciprocally slidable in the left and right directions, and a rotary case 21 that rotates at a constant speed in one direction is supported by the planting case 20, and a pair of claw cases 22 are positioned symmetrically about the rotation axis of the case 21. 22 and its claw case 22
· Attach the planting claws 17 to the tip of 22. Further, a support frame 24 is provided on the front side of the planting case 20 via a rolling fulcrum shaft 23, and the support frame 24 is connected to the rear side of the traveling vehicle 1 via a link mechanism 27 including a top link 25 and a lower link 26, A raising / lowering cylinder 28 for raising and lowering the planting section 15 via the link mechanism 27 is connected to the lower link 26, and the front and rear wheels 68 are driven and moved, and at the same time, the seedling table 16 is reciprocally slid left and right. The seedlings of the stock are taken out by the planting claws 17 and the planting operation is performed continuously.

In the drawing, reference numeral 29 denotes a traveling speed change lever, 30 denotes an auxiliary speed change lever for planting up / down and work traveling speed change, 31 denotes a planting sensitivity adjusting lever, 32 denotes a main clutch pedal, and 33/33.
Is a left and right brake pedal, 34 is a center float for leveling, 35 is a side float for leveling, and 36 is a side fertilizer for 10 rows.

The right and left outer portions of the planting section 15 such as the seedling table 16 and the planting case 20 are provided so as to be foldable inside the machine body. The seedling mounting table 16 is divided and formed into a foldable divided seedling mounting table 16b, and the divided seedling mounting table 16b is connected to the 6-row seedling mounting table main body 16a at the center of the machine via a parallel folding mechanism 37. The divided seedling mounting table 16b is provided so as to be substantially parallel to the upper side of the working surface of the mounting table main body 16a and to be folded in two steps, so that the entire width of the seedling mounting table 16 at the time of folding is equal to the width of approximately 6 steps. It is composed.

As shown in FIGS. 3 and 4, the outermost left and right portions of the planting case 20 are divided into a claw case 22 and a float 3.
5. A planting search adjusting shaft 38, a seedling extracting plate 39, etc., are provided so as to be freely foldable integrally with related components such as a transmission pipe 40 connecting the planting cases 20 and the adjusting shaft 38 and the seedling extracting plate 39, The pipe 40, the adjusting shaft 38, the seedling extracting plate 39, and the like are divided slightly outside the approximate center between the left and right outermost planting cases 20 and the inner planting case 20, and the central side of the fixed side has three sections. The rear ends of the two planting cases 20a are connected by fulcrum frames 42 via the respective brackets 41a, and one planting case 2 for each of the left and right outer sides on the split side is provided.
0b, a pivot frame 43 fixedly mounted at the rear end via a bracket 41b and the fulcrum frame 42 are coupled via a pivot fulcrum shaft 44.
One planting case 20b / 2 for left and right for 0a
0b is rotated about 180 degrees inward via the rotation fulcrum shaft 44, so that the split-side planting case 20b is located at a position rearward of the split seedling mounting table 16b folded behind the central fixed-side planting case 20a. It is configured to fold.

In the above construction, as shown in FIGS. 6 and 7, the fulcrum frame 42 is divided at the center in the left and right direction and extended to both sides, and the left and right sides are divided by the bracket 41a behind the central planting case 20a on both sides. Fulcrum frame 4
2.42 are connected. With such a configuration, the fulcrum frame 42 does not need to be formed of one large member over the entire width, and the assemblability in the manufacturing process is improved and the efficiency is improved. Also, when storing the parts, the space occupied by the members is small, so that the storage equipment can be used effectively and it is economical. Also, when replacing a member, only one of the fulcrum frame 42
Is replaceable, which reduces the cost of repair parts and is economical.

The outer end of the rotating frame 43 can be used as a handle when the rotating frame 43 is unfolded and stored. The outer end of the rotating frame 43 can be used to fold the planting portion 15. And deployment work can be performed easily. Also,
As shown by a two-dot chain line in FIGS.
It is also possible to provide the handle 130 by extending the outer end of the front side so as to extend forward to protect the claw case 22. In this case, the possibility that the claw case 22 and the rotary case 21 come into contact with an obstacle and be damaged is reduced. When the planting section 15 is folded or unfolded, it is possible to hold the handle 130 and perform storage and unfolding operations. For this reason, workability can be improved. Further, since the guard member and the handle can be shared by one member, the number of members can be reduced and the manufacturing cost can be reduced, which is economical.

[0012] As shown in FIG.
Is inclined approximately 45 degrees in a front-to-back and rear-to-back manner, and is disposed approximately at the center of each of two planting cases 20a and 20b on the left and right sides of the six-row width position of the seedling table 16 at the left and right ends of the fulcrum frame 42. A cylindrical shaft 45 fixed to the left and right ends of the fulcrum frame 42 and a cylindrical shaft 4 fixed to the inner end of the left and right rotating frame 43
6 at the lower and upper positions to form a hinge 47, and the fulcrum frame 42 and the rotating frame 43 are equidistant downward and upward from the contact surface of each of the cylinder shafts 45 and 46. Interconnected at different positions.

[0013] The fixed and divided planting cases 2
The frames 42 and 43 are provided on the rear surfaces of the U-shaped brackets 41a and 41b that are fixedly fastened to the bolts 48a and 20b by bolts 48a.
The semicircular arc grooves 49a and 49b are formed up and down along the circumference of the circle, and in the fixed-side fulcrum frame 42, the arc groove 49b at the lower position of the bracket 41a and the split-side rotating frame 43 In this case, the fulcrum shaft 44 is engaged with and fixed to an arc groove 49a above the bracket 41b.
When the rotating frame 43 on the divided side is rotated about 180 degrees inward around the center, the rotating frame 43 is engaged and held by the arc groove 49a above the fixed bracket 41a, and the planting case on the divided side is rotated. 20b is folded and stored in a vertical position with the front end side facing upward. It is to be noted that, when the planting case 20b on the split side is folded, the planting case 20b is folded symmetrically around the frame 42 behind the planting cases 20a on the left and right sides on the fixed side.

Conventionally, as shown in the upper part of FIG. 9, the fitting surface of the claw clutch 63 is such that "mountains" and "mountains" having the same shape are arranged symmetrically with respect to the axis center, and the other portions are formed. Is formed as a “valley”, or “mountains” and “mountains” having different sizes are provided on the opposite side with respect to the axis center, as shown in the lower part of FIG. 9. However, in any case, the joining surface has a symmetrical shape, the same one cannot be used, and two types of claw members are required. As shown in FIG. 8, the fitting surface of the clutch 63 according to the present invention is such that a “mountain” is formed from an end in a semicircular portion obtained by dividing the fitting surface by a symmetrical line that divides the fitting surface into right and left halves. An angle from the center is greater than 0 ° and less than 90 °, a “valley” is formed in the remaining portion, and a “valley” is formed at a symmetrical position of the “peak” with respect to the symmetry line. A "mountain" was formed at the symmetric position of.

Since the fitting surface of the clutch 63 is formed as described above, the clutch 63 is fitted only once per rotation.
For this reason, three planting cases 20a for the central 6-row on the fixed side
Rotation cycle of the rotary case 21 and two left and right
The rotation periods of the two planting cases 20b and 20b are the same. Thereby, the planting case 20b
Even when the 20b is unfolded from the housed state, the rotation cycles of the rotary case 20 of the planting section 15 are all the same, and planting can be performed at the same cycle. In the fitting surface of the clutch 63, the clutch 63 on the fixed side pipe 40a side
Since the shape of the fitting surface of the clutch 63 and the shape of the fitting surface of the split-side pipe 40b are the same, the clutch 63 can be formed of the same member. Thereby, the number of types of members can be reduced, and it is possible to save labor such as the need for two types of molds in the manufacturing process, which is economical.

As shown in FIG. 10, the sub-shift lever 30 for planting up / down and work travel is pivotally supported by a shaft 110. The transmission is stopped, and the planting section 15 can be raised. When rotated forward, power is transmitted to the planting portion 15 so that planting work can be performed. In addition, near the base of the sub-shift lever 30 for the planting elevating and working travel shifting,
The wire 101 is connected. The wire 101 is a shaft 1
Behind 10, it is fitted into an outer case 102 fixed to a stay 105 fixed to a frame 111. With this configuration, it is possible to rotate the planting elevating and working traveling speed change sub-transmission lever 30 backward. The other side of the wire 101 and the outer case 102 is extended to the fulcrum frame 42 of the planting portion 15.

The wire 101 and the outer case 102
11 and 12, the outer case 102 is fixed to a stay 103 welded and fixed to the fulcrum frame 42, and the wire 101 is fixed to a rotating frame 43. Arm 10 protruding from cylinder shaft 46
4 is connected to one end. Since the arm 104 is protruded rearward and inward, even when the turning frame 43 is turned 180 ° about the turning fulcrum shaft 44,
The wire 101 connected to the arm 104 is
-It does not touch the 45. The length L2 from the end of the outer case 102 for storing the wire 101 to the connection between the wire 101 and the arm 104 when folded is from the end of the outer case 102 to the connection between the wire 101 and the arm 104 during work. Is longer than the length L1. However, in order to protect the wire 101, the wire 101 can be inserted into the bellows.

In order to adopt the above configuration, when the rotating frame 43 is stored as shown in FIG.
04 pulls the wire 101 outward. As a result, the sub-shift lever 30 for planting up / down and work traveling speed shift connected to the other end of the wire 101 is pulled rearward, and its rotation is regulated. For this reason, when the rotating frame 43 is stored, the sub-shift lever 30 for planting up / down and work traveling shift cannot be rotated to the planting drive position. When the turning frame 43 is unfolded, the wire 101 is in a loosened state, so that the rotation of the sub-shift lever 30 for planting up / down and work travel is not restricted. .

The rotating frame 43 has a cylindrical shaft 45.
A fulcrum frame 42 is provided via the fulcrum shaft 46 and the fulcrum shaft 44.
It is connected to the. As shown in FIGS. 13 and 14, the one-touch coupling mechanism 1 is provided near the end of the rotating frame 43.
A hook member 142 of the coupling mechanism 120 is fixedly provided near the center of the fulcrum frame 42, and the engagement tightening member is provided with the handle 145 and the engaging member. 141, pivot 143 and handle support 1
46, and the handle support 145 is
2 and the handle support 145 is pivoted
43 is supported. The handle support 146
Is projected forward of the fulcrum frame 42 and does not hinder the rotation of the rotating frame 43.

An engaging body 141 is pivotally supported by the handle 145 so as to be rotatable, and is configured to be connectable to the hook member 142. When the rotating frame 43 is rotated rearward to be folded inward and fixed, the tip of the engaging body 141 is hooked on the hook member 142 on the rotating frame 43, and the handle 145 is rotated toward the handle support 146. By pushing the hook member 142 inward, the hook member 142 is pulled forward, and the fulcrum on the mounting side of the engagement body 141 is beyond the dead center beyond the pivot 143, and the turning frame 43 fixed to the hook member 142 is pulled forward. It can be locked while maintaining its state.

An arc-shaped groove is formed on the rear surface of the handle support 146, and the rotating frame 43 contacts the groove and pushes the rotating frame 43 forward. . For this reason, the rotating frame 43 is sandwiched in the front-rear direction, and is engaged and held by the coupling mechanism 120. With such a configuration, when the rotating frame 43 is folded, the coupling mechanism 120 enables the rotating frame 43 to be engaged and held on the fulcrum frame 42.

[0022]

Since the present invention is configured as abnormal, the following effects can be obtained. First, since the pivoting side of the folding mechanism and the planting work lever are interlocked and connected to regulate the planting work at the time of folding, the planting case is folded when the planting case is folded. The rotation of the auxiliary transmission lever for lifting and lowering work speed is restricted, so that even if the lever is operated by mistake, the planting portion is not driven when the planting case is folded, and the planting claw or other The driver can concentrate on traveling only without damaging the driving parts of the vehicle.

Also, the length from the end of the outer case for storing the wire when folded to the connecting portion between the wire and the arm is made longer than that at the time of work, so that the length of the wire is reduced. Only by changing, the planting work lever can be regulated in conjunction with the folding, and is linked by the wire. Therefore, the folding safety device can be configured with a simple structure, and the regulating mechanism can be configured at low cost.

Further, since the one-touch type coupling mechanism including the hook member and the engagement tightening member is provided between the pivot frame and the fulcrum frame of the folding mechanism, the planting portion is firmly fixed. In addition, it is possible to suppress rattling during movement, eliminate vibration and noise, inadvertently deploy the folding frame, and prevent the restriction of the auxiliary shifting lever for planting up / down and work travel shifting from being released. For this reason, it is possible to reduce the driver's attention to the planting portion during traveling. Further, since the support frame and the rotation frame having the same folding rotation fulcrum are fixed, it is possible to reduce the displacement of the fixing position.

[Brief description of the drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall plan view.

FIG. 3 is a development explanatory view of a folding mechanism of the planting section.

FIG. 4 is an explanatory view of folding of a planting case.

FIG. 5 is an explanatory perspective view of a rotation fulcrum shaft.

FIG. 6 is a plan view of the support frame and the rotating frame when they are unfolded.

FIG. 7 is a plan view of the folding of the support frame and the rotating frame.

FIG. 8 is an explanatory view of a clutch fitting surface of the present invention.

FIG. 9 is an explanatory view of a conventional clutch fitting surface.

FIG. 10 is a side view of a sub-shift lever for planting elevating and working traveling speed change.

FIG. 11 is a plan view showing a wire sliding mechanism.

FIG. 12 is a perspective view showing a configuration of a wire provided on a support frame.

FIG. 13 is a plan view of a coupling mechanism for fixing the support frame and the rotating frame.

FIG. 14 is a side view of a coupling mechanism for fixing the support frame and the rotating frame.

[Explanation of symbols]

 REFERENCE SIGNS 30 sub-shift lever for planting raising / lowering and work traveling speed change 101 wire 102 outer case 103 stay 104 arm 105 stay 120 coupling mechanism 141 engagement body 142 hook part 143 pivot 145 handle 146 handle support

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kazuhisa Shioya 1-32 Chayacho, Kita-ku, Osaka-shi, Osaka Inside Yanmar Agricultural Machinery Co., Ltd.

Claims (3)

[Claims] 1. A planting device for a rice transplanter which divides and folds a plurality of sections at both left and right ends of a planting case for driving a planting claw, wherein a rotating side of a folding mechanism and a planting work lever are interlocked and connected. A folding device for a rice transplanter, wherein a planting operation is regulated at the time of folding. 2. A length from an end of an outer case for storing a wire connecting a pivoting side of the folding mechanism to a planting work lever to a connecting portion between the wire and the arm is made longer than the length at the time of work. The folding device for a rice transplanter according to claim 1. 3. A planting device for a rice transplanter which divides and folds a plurality of sections on both right and left ends of a planting case for driving a planting claw, wherein a folding mechanism is provided between a rotating frame and a fulcrum frame of a folding mechanism.
A folding device for a rice transplanter, comprising a one-touch coupling mechanism comprising a hook member and an engagement fastening member.