JP2010124735A - Power tiller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power tiller whose structure can be simplified and which can improve workability, when tilling tines are exchanged, repaired, washed, or the like. <P>SOLUTION: This power tiller 10 includes a resistant bar 22 detachably attached to a resistant bar-attaching hole 33 disposed in a power tiller body 11, and a stand means 24. In the stand means 24, a pole portion 51 capable of being detachably attached to the resistant bar-attaching hole 33 from which the resistant bar 22 is removed, and the stand means 24 singly holds the posture of the power tiller 10 in a self-standing state, in a state that the pole portion 51 is attached to the resistant bar-attaching hole 33. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cultivator in which a resistance rod is detachably attached to a resistance rod attachment hole provided in the machine body, and maintains the posture during tillage with the resistance rod.

Some tillers are capable of projecting a stand downward from the front of the body frame in order to maintain the position of the tiller in a state where they are self-supporting in a transporting position and a storing position.
According to this cultivator, it is possible to keep the cultivator in a self-supporting state by projecting the stand downward from the front part of the body frame and grounding the stand, the cultivating claw and the resistance rod (for example, (See Patent Document 1).
JP 2006-115777 A

However, in order to provide the stand of Patent Document 1 on the cultivator, it is necessary to provide the cultivator with a mounting bracket for attaching the stand.
For this reason, the structure of the cultivator became complicated, and there was room for improvement from this viewpoint.

By the way, it is conceivable that the cultivating claws of the cultivator are worn out to agitate the soil.
In this case, in order to maintain the workability of the tiller, it is preferable to replace the worn tillage claw with a new tillage claw.

Further, the tilling claws of the tiller are usually configured so that the inner tilling claws on the machine body center side and the outer tilling claws on the outer side of the body can be divided.
In some cases, the soil is cultivated by attaching an inner cultivating claw and an outer cultivating claw when plowing, and only the inner cultivating claw is attached for mowing during mowing.
For this reason, it is conceivable to attach and detach the outer tillage nail according to the use of work.

Thus, when exchanging the worn tilling claw with a new tilling claw or attaching / detaching the outside tilling claw, it is conceivable to keep the tiller in a self-supporting posture using the stand of Patent Document 1.
However, the stand of Patent Document 1 is a simple stand that keeps the tiller in a self-supporting state by grounding the tilling claw and the resistance rod, that is, by using the tilling claw and the resistance rod.

Therefore, in a state where the tiller is made self-supporting using the stand of Patent Document 1, it is difficult to keep the tiller in a stable state when exchanging the tilling nail or attaching / detaching the outside tilling nail.
For this reason, it takes time to replace the tilling claws and to attach and detach the outside tilling claws.
In addition, since it is difficult to keep the tiller stable, it takes time to repair and clean the tilling claws.

  It is an object of the present invention to provide a cultivator capable of simplifying the configuration of the cultivator and improving workability when exchanging the cultivating claws and repairing / cleaning the cultivating claws. And

  According to a first aspect of the present invention, in a cultivator in which a resistance rod is detachably attached to a resistance rod attachment hole provided in the fuselage, and the posture at the time of tilling is maintained by the resistance rod, the tiller is provided below the fuselage. A stand means for maintaining the position of the tiller in a self-supporting state with a single member, and the stand means is provided with a pole portion that can be removably attached to the resistance rod mounting hole from which the resistance rod is removed, In a state where the pole portion is attached to the resistance rod attachment hole, the position of the tiller is maintained in a self-supporting state by the stand means alone.

  According to a second aspect of the present invention, the stand means includes wheels that can hold the posture of the tiller in a self-supporting state and can be used for movement of the tiller.

  According to a third aspect of the present invention, the stand means includes a horizontal extension portion that extends below a tilling claw provided below the airframe, and holds the tilling claw in a floating state by the horizontal extension portion. Features.

In the invention according to claim 1, a pole portion is provided on the stand means, and the pole portion can be detachably attached to the resistance rod attachment hole.
Thus, by attaching the stand means using the resistance bar attaching hole, the mounting bracket for attaching the stand means to the machine body can be removed, and the tiller can be simplified.

Furthermore, in a state where the pole portion is attached to the resistance rod attachment hole, the position of the tiller is maintained in a self-supporting state by the stand means alone.
Therefore, when exchanging tillage claws or attaching / detaching outer tillage claws, the tiller can be made to stand in a stable state by the stand means.
As a result, it becomes possible to perform the replacement work of the tilling claws, the repairing / cleaning work of the tilling claws, and the like, and the workability can be improved.

In the invention which concerns on Claim 2, the wheel for a movement was provided in the stand means. Thereby, a cultivator can be easily moved using a wheel for movement, and usability can be improved.
Furthermore, the posture of the cultivator can be maintained in a self-supporting state by using wheels for movement. In this way, the stand means can be simplified by using the moving wheel as a member for maintaining the position of the tiller in a self-supporting state.

In the invention which concerns on Claim 3, the horizontal extension part of the stand means was extended under the cultivation nail | claw (it turns around). And it was made to hold | maintain the tilling nail | float in the horizontal extension part.
As a result, it is possible to perform the replacement work of the tilling claws, the repairing / cleaning work of the tilling claws, and the like, and further improve the workability.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front”, “rear”, “left”, and “right” indicate the direction viewed from the operator, and the front side is Fr, the rear side is Rr, the left side is L, and the right side is R.

FIG. 1 is a side view showing a state where a resistance rod is attached to a field cultivator according to the present invention, FIG. 2 is a side view showing a state where a stand means is attached to the field cultivator according to the present invention, and FIG. It is a side view which shows the state which attached the case body to the machine.
The cultivator 10 includes an engine 12 mounted on an upper end portion of a cultivator main body (machine body) 11, a cultivating shaft 13 provided below the engine 12, and a plurality of cultivating claws (working unit) provided on the cultivating shaft 13. ) 15, a handle column 18 extending rearward and upward from the support bracket 16 of the cultivator main body 11, a resistance bar mounting portion 20 provided at the front end portion 18 a of the handle column 18, and a resistance bar mounting portion 20 A resistance rod 22 and a stand means 24 that can be detachably attached to the stand means 24, a case body 26 attached to the stand means 24, a carry handle 28 for transportation provided substantially at the center of the handle column 18, and a handle column 18 This is a walking type tiller provided with an operation handle 29 provided at the upper end.

  This cultivator 10 is a walking cultivator that travels while cultivating soil with a plurality of cultivating claws 15 by transmitting the power of the engine 12 to the cultivating shaft 13 and rotating the cultivating shaft 13.

FIG. 4 is a perspective view showing a state in which a resistance bar is attached to the field cultivator according to the present invention, and FIG.
The resistance rod attaching portion 20 includes an attaching pipe portion 31 provided at the front end portion 18 a of the handle column 18 and an attaching / detaching operation means 32 attached to the attaching pipe portion 31.

The attachment pipe portion 31 is a cylindrical body in which a resistance rod attachment hole 33 is coaxially penetrated.
The attachment pipe portion 31 is provided so as to intersect the handle column 18 while penetrating the front end portion 18a of the handle column 18, and is inclined at an angle θ (see also FIG. 1) with respect to the vertical line 35. It is arrange | positioned at the downward slope toward the vehicle body back by arrange | positioning.
The attachment pipe portion 31 has a pair of locking holes 31 a formed coaxially above the front end portion 18 a of the handle column 18.

  The attachment / detachment operation means 32 includes a bracket 37 welded to the upper end portion 31b of the attachment pipe portion 31 and the front end portion 18a of the handle column 18, a stopper piece 38 provided on the upper and lower ends 37a, 37b of the bracket 37, a bracket 37, a cylindrical collar 41 penetrating through the bent portion 39, an operating rod 42 penetrating through the collar 41 and inserted into the locking holes 31a, 31a of the mounting pipe portion 31, the stopper piece 38, and the folding piece. And a compression spring 43 interposed between the curved portions 39.

In the bracket 37, the end 37 a of the upper piece 44 is welded to the upper end 31 b of the attachment pipe portion 31, the end 37 b of the lower side 45 is welded to the front end 18 a of the handle column 18, and the upper piece 44 and the lower side 45 are folded. They are connected by a curved portion 39.
The bracket 37 is formed in a substantially U shape with an upper piece 44, a lower side 45, and a bent portion 39.

The stopper piece 38 is provided in the vicinity of the end portion 37a of the upper piece 44 and in the vicinity of the end portion 37b of the lower side 45, and a through hole 38a is formed in the approximate center.
The collar 41 is penetrated and fixed to the bent portion 39 while being arranged coaxially with the through hole 38a.

  The operating rod 42 includes a collar 41, a through hole 38 a of the stopper piece 38, locking holes 31 a and 31 a of the mounting pipe portion 31, and a linear rod main body 42 a that passes through the mounting hole 22 a of the resistance rod 22, and the rod main body 42 a. And a handle 42c provided at the base end of the rod main body 42a projecting outward from the collar 41.

  The compression spring 43 is disposed between the bent portion 39 of the bracket 37 and the flange 42 b of the operation rod 42 and is fitted to the operation rod 42 and the collar 41.

According to the attaching / detaching operation means 32, the rod 42 a is pressed against the stopper piece 38 by pressing the flange 42 b with the spring force of the compression spring 43, so that the rod body 42 a is engaged with the locking holes 31 a, 31 a of the attachment pipe portion 31. The resistor rod 22 can be held in the state of being inserted into the mounting hole 22a.
Thereby, the resistance rod 22 can be attached to the resistance rod attachment hole 33 of the attachment pipe portion 31.
By attaching the resistance rod 22 to the resistance rod attachment hole 33, when the soil is cultivated by the cultivator 10, the posture during tilling can be held by the resistance rod.

On the other hand, by pulling the handle portion 42c to the right as shown by the arrow, the flange 42b moves in the direction of the arrow, and the compression spring 43 is compressed by the flange 42b. By compressing the compression spring 43, the rod main body 42 a can be extracted from the locking holes 31 a and 31 a of the mounting pipe portion 31 and the mounting hole 22 a of the resistance rod 22.
Thereby, it is possible to easily attach or remove the resistance rod 22 from the resistance rod attachment hole 33 of the attachment pipe portion 31 without taking time and effort.

FIG. 6 is a perspective view showing a state where the stand means and the case body are attached to the tiller according to the present invention, and FIG. 7 is a perspective view showing a state where the stand means and the case body are removed from the tiller according to the present invention.
The stand means 24 includes a pole portion 51 that can be detachably attached to the resistance rod attachment hole 33 of the attachment pipe portion 31, an attachment bracket 52 provided at the lower end portion 51 a of the pole portion 51, and an upper end portion 52 a of the attachment bracket 52. A resistance member holding part 54 attached to the stand member 53, and a wheel 55 provided at the lower end part 52 b of the attachment bracket 52.

The pole portion 51 is a rod member that can be inserted into the resistance rod attachment hole 33 from below, and an attachment hole 51c is provided in the upper end portion 51b.
The mounting hole 51c is formed so that the rod main body 42a of the operation rod 42 can pass therethrough.
The stand means 24 can be attached to the attachment pipe portion 31 by attaching the pole portion 51 to the resistance rod attachment hole 33.

Thus, as shown in FIG. 1, by using the cultivator 10 as a cultivator, the stand means 24 can be detachably attached using the resistance bar attaching hole 33 provided in the cultivator.
Thereby, in order to attach the stand means 24, it is not necessary to equip the tiller 10 with an exclusive attachment bracket (attachment hole), and simplification can be achieved by suppressing the number of parts.

The mounting bracket 52 includes a top portion 57 provided at the lower end portion 51 a of the pole portion 51, and left and right leg portions 58 bent downward from the left and right ends of the top portion 57.
Receiving recesses 59 and 59 are formed at upper ends of the left and right leg portions 58, and a stand member 53 is provided in the receiving recesses 59 and 59.
A wheel 55 is disposed between the left and right legs 58, and the wheel 55 is rotatably attached to the lower ends of the left and right legs 58 via a support shaft.

FIG. 8 is a perspective view showing a stand means according to the present invention.
The stand member 53 is a member formed by bending a rod.
The stand member 53 includes a horizontal rod portion 62 that extends substantially horizontally in the width direction, a left support extension portion (support extension portion) 63 that extends forward from the left end portion of the horizontal rod portion 62, and a horizontal rod. A right support extension part (support extension part) 64 extending downwardly from the right end of the part 62 toward the front.
The stand member 53 is formed in a substantially U shape in plan view.

The left support extension 63 extends horizontally from the left end of the horizontal rod 62 to the left inclined extension 66 that extends downward toward the front, and from the lower end of the left inclined extension 66 toward the front. And a left horizontal extending portion (horizontal extending portion) 67.
The right support extension 64 extends horizontally from the right end of the horizontal rod 62 to the front and extends downward from the right end of the horizontal rod 62 and from the lower end of the right inclination extension 68 to the front. And a right horizontal extending portion (horizontal extending portion) 69.

The left and right horizontal extending portions 67 and 69 extend below (to wrap around) the tilling claws 15 provided below the cultivator main body 11 shown in FIG.
The horizontally extending left and right horizontal extending portions 67 and 69 are disposed below the lower end 15a of the tilling claw 15 by a distance H1 (see FIG. 2).
Therefore, as shown in FIG. 2, the tilling claw 15 can be held in a floating state with the left and right horizontal extending portions 67 and 69 being grounded.

The resistance rod holding portion 54 is a pipe (cylindrical member) that holds the resistance rod 22, and is provided on the left inclined extending portion 66 of the stand member 53, and the lower end portion 54a is crushed in a concave shape.
By crushing the lower end portion 54 a into a concave shape, the upper end portion 22 b of the resistance rod 22 is held in a state of being inserted into the resistance rod holding portion 54.
As a result, the resistance rod 22 can be held by the resistance rod holding portion 54.

According to the stand means 24, by attaching the pole portion 51 to the resistance rod mounting hole 33 with the resistance rod 22 removed from the resistance rod mounting hole 33, the left and right horizontal extending portions 67, 69 and the wheel 55 can be grounded.
The cultivator 10 can be kept in a self-supporting state in the carrying posture and the storage posture by the stand means 24 alone.

Here, as described above, the left and right horizontal extending portions 67 and 69 are disposed below the lower end 15a of the tilling claw 15 by a distance H1 (see FIG. 2).
Therefore, as shown in FIG. 2, in a state where the left and right horizontal extending portions 67 and 69 are grounded, the tiller 10 is kept in a state of being transported or stored independently with the tilling claws 15 floating. Can do.
As a result, it is possible to perform the replacement work of the tilling claws 15 and the repair / cleaning work of the tilling claws 15 without much effort, and the workability can be improved.

Further, according to the stand means 24, the stand means 24 is provided with a moving wheel 55.
Thereby, it becomes possible to move the cultivator 10 easily using the wheels 55, and the usability can be improved.

Furthermore, the cultivator 10 can be kept in a self-supporting state in the transporting posture or the storage posture using the moving wheels 55.
Thus, the stand means 24 can be simplified by using the moving wheel 55 as a member for holding the tiller 10 in a self-supporting state.

Returning to FIGS. 6 and 7, the case body 26 is attached to the stand member 53 (specifically, the left and right support extending portions 63 and 64) of the stand means 24 and accommodates the tilling claws 15 shown in FIG. 1. This is possible.
By storing the tilling claws 15 in the case body 26, the earth and sand that has fallen from the tilling claws 15 can be stored in the case body 26.
Thereby, when carrying the cultivator 10 with a vehicle, it can prevent that the floor part of a vehicle is soiled with the earth and sand which fell from the tilling nail | claw 15. FIG.

The case body 26 includes a bottom portion 71 formed in a substantially rectangular shape, a front wall portion 72 raised upward from the front side of the bottom portion 71, and a rear wall portion raised upward from the rear side of the bottom portion 71. 73, a left side wall 74 raised upward from the left side of the bottom 71, and a right side wall 75 raised upward from the right side of the bottom 71.
The case body 26 is formed in a box shape with a bottom 71, a front wall 72, a rear wall 73, a left wall 74 and a right wall 75.

The bottom 71 is a horizontal part formed in a substantially rectangular shape.
The front wall portion 72 is a wall portion that is inclined with an upward slope from the front side of the bottom portion 71 toward the front.
The rear wall 73 is a wall that is inclined with an upward slope from the rear side of the bottom 71 toward the rear.

The left side wall portion 74 is a side wall that rises substantially vertically from the left side of the bottom portion 71.
The upper side 77 of the left side wall 74 has an upper front side 77a formed in an upward slope toward the rear, an upper central side 77b formed substantially horizontally from the upper end of the upper front side 77a to the rear, and an upper central side. 77b and an upper rear side 77c formed in a downward gradient from the rear end toward the rear.
That is, the upper side 77 is formed in a substantially Mt. Fuji shape by making the upper central side 77b substantially horizontal and the upper front side 77a and the upper rear side 77c inclined.

The left side wall 74 includes a gripping part 78 projecting outward from an upper front side (front part of the left side wall part) 77a, an upper central side 77b, and an upper rear side (rear part of the left side wall part) 77c. And a flange portion 79 projecting outward.
The gripping portion 78 is projected to a relatively large extent with a projecting width W1 so that an operator can grip the gripping portion 78.

FIG. 9 is a plan view showing a state in which the case body is attached to the field cultivator according to the present invention.
The flange portion 79 protrudes with an overhang width W2 that is smaller in width than the overhang width W1 of the grip portion 78.
Therefore, an interference prevention recess 81 that is recessed toward the center in the width direction of the case body 26 with respect to the grip 78 is formed in the upper center side 77b and the upper rear side 77c.

The right side wall 75 is a side wall that rises substantially vertically from the right side of the bottom 71.
Since the right side wall part 75 is a side wall part symmetrical to the left side wall part 74, the same reference numerals as those of the left side wall part 74 are assigned to the constituent parts of the right side wall part 75, and description thereof is omitted.

By providing the left and right grips 78 on the upper front sides 77a of the left and right side walls 74, 75, the operator can grip the left and right grips 78 and easily lift the case body 26.
Furthermore, by providing the left and right concave portions 81 for preventing interference in the upper central side 77b and the upper rear side 77c of the left and right side wall parts 74, 75, the operator interferes with the case body 26 when lifting up the tiller 10. Can be prevented.

FIG. 10 is a perspective view showing a case body according to the present invention, and FIG. 11 is a rear view showing the field cultivator according to the present invention.
The case body 26 can be fitted with the left and right support extension portions 63 and 64 from the outside of the case body 26 at portions corresponding to the left and right support extension portions 63 and 64 in the bottom portion 71 and the rear wall portion 73. Left and right fitting groove portions (fitting groove portions) 83 and 84 are provided.

The left fitting groove 83 is omitted in side view so as to extend along the left wall 74 (that is, the left support extension 63) from the vicinity of the left side of the bottom 71 to the vicinity of the left side of the rear wall 73. It is formed in a square shape.
In the left fitting groove 83, a left support extension 63 is formed in a concave shape so as to be fitted from the outside of the case body 26.

The right fitting groove 84 is omitted from the side view so as to extend along the right side wall 75 (that is, the right support extension 64) from the vicinity of the right side of the bottom 71 to the vicinity of the right side of the rear wall 73. It is formed in a square shape.
A right support extension 64 is formed in the right fitting groove 84 in a concave shape so as to be fitted from the outside of the case body 26.

  The left fitting groove 83 is fitted to the left support extension 63, and the right fitting groove 84 is fitted to the right support extension 64, so that the case body 26 has left and right support extensions 63. , 64 from above.

Therefore, it is possible to place the case body 26 on the left and right support extension parts 63 and 64 and to remove the placed case body 26 from the left and right support extension parts 63 and 64 without lifting the tiller 10. it can.
Thereby, since it is not necessary to lift the tiller 10 and store it in the case body 26, the tilling claw 15 can be easily stored in the case body 26, and the tilling claw 15 can be easily detached from the case body 26. .

Furthermore, the stand means 24 can maintain the tiller 10 in a state of carrying or storing in a state where the tilling claws 15 are floating while the left and right horizontal extending portions 67 and 69 are grounded. .
Accordingly, the case fitting 26 is inserted along the tillage claw 15 and the left and right support extension parts 63 and 64 while rotating the case body 26 along the left and right support extension parts 63 and 64, so that the left fitting groove 83 is extended to the left support extension. The right fitting groove 84 is fitted to the right support extending portion 64 while being fitted to the protruding portion 63.
Thereby, the tilling claw 15 can be stored in the case body 26 more easily, and the tilling claw 15 can be removed from the case body 26 more easily.

  In addition, as described above, the left and right grips 78 are provided on the upper front sides 77a of the left and right side walls 74, 75. Thereby, the operator can grip the left and right grips 78, and the case body 26 can be more easily attached to and detached from the stand member 53 (left and right support extension portions 63 and 64 (see FIG. 7)).

The rear wall 73 is provided with a pair of drain holes 86 at a position at a predetermined height position H2 from the bottom 71.
The pair of drainage holes 86 are horizontally disposed with a certain interval between the left and right reinforcing ribs 87 and are capable of draining the water in the internal space 88 of the case body 26.
Accordingly, by providing the pair of drain holes 86 at the predetermined height position H <b> 2, it is possible to prevent water from being accumulated in a space higher than the pair of drain holes 86 in the internal space 88 of the case body 26.

Further, since the pair of drain holes 86 are provided at the predetermined height position H <b> 2 of the rear wall 73, the pair of drain holes 86 are positioned above the bottom 71 of the case body 26.
Therefore, for example, when water drops are dropped from the tiller 10 onto the bottom 71 of the case body 26, the dropped water can be stored in the bottom 71 of the case body 26.
Thereby, it is possible to prevent water drops dripped from the tilling claws 15 from being drained from the internal space 88 of the case body 26 to the floor of the vehicle.

By the way, the case body 26 can arrange | position a pair of drain hole 86 in a lowest position easily by tilting the tiller 10 (refer FIG. 1) back centering on the wheel 55 of the stand means 24. As shown in FIG.
Therefore, when water accumulates in a space lower than the pair of drain holes 86 in the internal space 88 of the case body 26, the tiller 10 is tilted rearward so that the pair of drain holes 86 are disposed at the lowest position. 26 water can be easily drained.

Returning to FIG. 9, the carry handle 28 is provided at substantially the center of the handle column 18 as shown in FIG. 1, and the left and right grip portions 46 and 47 and the central grip portion that are gripped (gripped) to carry the tiller 10. 48 is provided.
In order to carry the cultivator 10, for example, each worker stands on the left and right sides of the cultivator 10 (left and right sides of the case body 26), and each worker holds the left grip portion 46 and the right grip portion 47, respectively. The grip portions 46 and 47 are lifted to carry the cultivator 10.
Alternatively, one worker stands on one of the left and right sides of the cultivator 10 (left and right sides of the case body 26), holds the central grip portion 48, lifts the central grip portion 48, and carries the cultivator 10.

For this reason, when carrying the cultivator 10, the worker stands on the left and right sides or one side of the case body 26. For this reason, if the flange is greatly extended from the upper central side 77b and the upper rear side 77c of the left and right side wall portions 74, 75, it is conceivable that the operator interferes with the flange.
Therefore, as described above, the left and right concave portions 81 for preventing interference are provided on the upper central side 77b and the upper rear side 77c of the left and right side wall portions 74, 75.
Thereby, when lifting up the tiller 10, it is possible to prevent the operator from interfering with the case body 26.

Here, as described above, the drain hole 86 of the case body 26 is provided in the rear wall 73.
On the other hand, when carrying the cultivator 10, the operator is positioned on the left and right sides of the case body 26.
Thereby, when the tiller 10 is carried, the water drained from the drain hole 86 can be prevented from being applied to the operator.

Next, a procedure for removing the resistance bar 22 from the tiller 10 and attaching the stand means 24 will be described with reference to FIGS.
FIGS. 12A and 12B are views for explaining the procedure for removing the resistance bar from the cultivator according to the present invention.
In (a), the guard member 27 is grounded by tilting the cultivator 10 forward as shown by the arrow A with the tiller shaft 13 as an axis. When the guard member 27 and the tilling claw 15 are grounded, the tiller 10 is held in a forward tilted state.
When the cultivator 10 is tilted forward, the lower end portion 31c of the attachment pipe portion 31 is arranged facing rearward, and the resistance rod 22 is kept in a state of floating sideways.

  In FIG. 5 (b), by operating the operating rod 42 (specifically, the handle portion 42c) of the attaching / detaching operating means 32 shown in FIG. 5, resistance is applied from the resistance rod mounting hole 33 (see FIG. 5) of the mounting pipe portion 31. Remove the rod 22 as shown by arrow B.

FIGS. 13A and 13B are views for explaining the procedure for attaching the stand means to the cultivator according to the present invention.
In (a), the pole portion 51 of the stand means 24 is inserted as shown by an arrow C into the resistance rod mounting hole 33 (see FIG. 5) of the mounting pipe portion 31. With the pole portion 51 inserted, the operation rod 42 (the handle portion 42 c) shown in FIG. 5 is operated to attach the pole portion 51 to the attachment pipe portion 31.

In (b), by returning the cultivator 10 to the position where the tiller 10 is self-supporting in the carrying posture and the storage posture as indicated by the arrow D, the left and right horizontal extending portions 67 and 69 and the wheels 55 provided in the stand means 24 are grounded. By grounding the left and right horizontal extending portions 67 and 69 and the wheels 55, the tiller 10 is kept in a self-supporting state by the stand means 24 in the carrying posture and the storage posture.
The resistance rod 22 removed from the attachment pipe portion 31 is attached to the resistance rod holding portion 54 as indicated by an arrow E.

FIG. 14 is a view showing a state in which the cultivator according to the present invention is self-supported by the stand means.
The left and right horizontal extending portions 67 and 69 are disposed below the lower end 15a of the tilling claw 15 by a distance H1. Therefore, the tilling claw 15 can be kept in a floating state by grounding the left and right horizontal extending portions 67 and 69 and the wheels 55.

Next, a procedure for attaching the case body 26 to the stand means 24 will be described with reference to FIG.
FIGS. 15A and 15B are views for explaining the procedure for attaching the case body to the cultivator according to the present invention.
In (a), the left and right grips 78 (see also FIG. 6) of the case body 26 are gripped, the case body 26 is tilted rearward as indicated by the arrow F, and the rear wall 73 is disposed horizontally. In this state, the case body 26 is moved as shown by an arrow G, and the rear wall portion 73 is inserted between the left and right horizontal extending portions 67 and 69 and the tilling claws 15.
By grasping the left and right grips 78 of the case body 26, the operation of inserting the case body 26 can be easily performed without trouble.
By inserting the case body 26, the left fitting groove portion 83 is fitted to the left horizontal extending portion 67 and the right fitting groove portion 84 is fitted to the right horizontal extending portion 69.

The rear wall portion 73 of the case body 26 is inserted between the left and right inclined extending portions 66 and 68 and the tilling claw 15.
The left fitting groove 83 is fitted to the left inclined extending portion 66 and the right fitting groove 84 is fitted to the right inclined extending portion 68.

In (b), the rear wall portion 73 (see FIG. 15A) of the case body 26 is moved along the left and right horizontal extending portions 67 and 69, and then the left and right inclined extending portions 66 and 68 are moved. By moving along, the case body 26 rotates as indicated by the arrow I.
When the case body 26 rotates as indicated by the arrow I, the left fitting groove 83 is fitted into the left supporting extension 63 and the right fitting groove 84 is fitted into the right supporting extension 64.

By rotating the case body 26 as shown by the arrow I, the bottom portion 71 of the case body 26 is disposed horizontally and is grounded.
In this state, the case body 26 is attached in a state of being placed on the stand member 53 (specifically, the left and right support extending portions 63 and 64).

Note that the cultivator according to the present invention is not limited to the above-described embodiment, and can be appropriately changed and improved.
For example, in the above-described embodiment, the example in which the tilling claw 15 is floated when the tiller 10 is held in the self-standing posture by the stand means 24 has been described, but the present invention is not limited to this, and the tilling claw 15 is configured not to float. It is also possible.

Moreover, although the said embodiment demonstrated the example provided with the left and right support extension parts 63 and 64 in the stand member 53, the number of support extension parts is not limited to two.
For example, the stand member 53 may be provided with a single support extension, and the single support extension may be formed in a substantially T shape.

  Further, the cultivator main body 11, the cultivating claw 15, the resistance rod 22, the stand means 24, the attachment pipe portion 31, the resistance rod attachment hole 33, the pole portion 51, the stand member 53, the wheels 55, the left and right The support extending portions 63 and 64 and the left and right horizontal extending portions 67 and 69 are not limited to the illustrated shapes, and can be appropriately changed.

  INDUSTRIAL APPLICABILITY The present invention is suitable for application to a field cultivator in which a resistance bar is detachably attached to a resistance bar mounting hole provided in the machine body and maintains the posture during tilling with the resistance bar.

It is a side view which shows the state which attached the resistance rod to the cultivator which concerns on this invention. It is a side view which shows the state which attached the stand means to the cultivator which concerns on this invention. It is a side view which shows the state which attached the case body to the cultivator which concerns on this invention. It is a perspective view which shows the state which attached the resistance rod to the cultivator which concerns on this invention. FIG. 5 is a view taken in the direction of arrow 5 in FIG. 4. It is a perspective view which shows the state which attached the stand means and the case body to the cultivator which concerns on this invention. It is a perspective view which shows the state which removed the stand means and the case body from the cultivator which concerns on this invention. It is a perspective view which shows the stand means based on this invention. It is a top view which shows the state which attached the case body to the cultivator which concerns on this invention. It is a perspective view which shows the case body which concerns on this invention. It is a rear view which shows the cultivator which concerns on this invention. It is a figure explaining the procedure which removes a resistance stick | rod from the tiller which concerns on this invention. It is a figure explaining the procedure which attaches a stand means to the cultivator which concerns on this invention. It is a figure which shows the state which hold | maintained the tiller which concerns on this invention in the self-supporting attitude | position by the stand means. It is a figure explaining the procedure which attaches a case body to the cultivator which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Tiller, 11 ... Tiller main body (machine body), 15 ... Tillage claw (working part), 22 ... resistance bar, 24 ... stand means, 31 ... mounting pipe part, 33 ... resistance bar mounting hole, 51 ... pole part , 53 ... Stand member, 55 ... Wheel, 63, 64 ... Left and right support extension parts (support extension part), 67, 69 ... Left and right horizontal extension parts (horizontal extension part).

Claims (3)

In the cultivator in which the resistance rod is detachably attached to the resistance rod mounting hole provided in the machine body, and holds the posture at the time of tillage with the resistance rod,
A stand means provided below the machine body to maintain the position of the tiller in a self-supporting state with a single member;
The stand means includes
A pole portion that can be detachably attached to the resistance rod mounting hole from which the resistance rod is removed is provided,
A field cultivator characterized in that the position of the field cultivator is maintained in a self-supporting state by the stand means alone in a state where the pole portion is mounted in the resistance rod mounting hole. The stand means includes
The cultivator according to claim 1, further comprising a wheel that can hold the posture of the cultivator in a self-supporting state and can be used for movement of the cultivator. The stand means includes
A horizontal extension extending below the tillage claw provided below the aircraft,
The cultivator according to claim 1 or 2, wherein the cultivating claw is held in a floating state by the horizontal extension portion.

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