JP4916265B2 - Agricultural equipment support equipment - Google Patents

Description

  The present invention relates to a support device for an agricultural implement that is attached to a rear portion of a towing vehicle such as a tractor and performs ground work by being towed.

Conventionally, there is a soil cultivator as an agricultural implement that is attached to the rear portion of a tractor and performs ground work by being pulled.
This earthenware is supported by a rear part of a support frame provided in a rearward projecting manner at the rear part of the tractor so as to be pivotable up and down around the axis of the pivot shaft in the left-right direction. By rotating upward around the axis of the shaft, the soil cultivator can be repositioned from a working position located below the rotating support shaft to a non-working position located above the rotating support shaft. It is configured.
In addition, since this earthenware has a considerable weight and the work for raising and lowering the earthenware is heavy labor, in order to reduce the lifting force of the earthenware, the earthenware is biased in the direction of rotating upward. There is a support device for agricultural equipment provided with a biasing means (see Patent Document 1).
JP 2004-113036 A

In the conventional supporting device for farm equipment, a fixing pin for fixing the soil cultivator at the working position is provided, and a reaction force that the cultivator receives from the soil during the operation acts on the fixing pin. There is a possibility that the fixing portion for fixing the cultivator to the working position may be damaged early.
Therefore, in view of the above-described problems, the present invention can reduce the labor for raising and lowering the farm equipment, and also reduces the load acting on the fixed portion that fixes the farm equipment at the work position during the work. An object of the present invention is to provide a support device for agricultural equipment.

Technical measure taken by the present invention to solve the above technical problem, the rear end of the support frame provided behind protrude from the machine frame of the rotary tiller which is vertically movable mounted to the rear of 牽 pull vehicle the soil vessel was rotatably supported about the axis of the left-right direction through the pivot shaft to the toolbar, the soil unit, earthenware pots rows, driven ground work a rear position of the rotary tiller create in the support apparatus of farm equipment from work position to allow the position changed to a non-working position above the said working position by reversing the Atomawari about the axis of the rotation support shafts,
An operation member which is stretchable operated by longitudinally telescopically constructed and motor provided with a threaded stretching structure, supporting a longitudinal front end side of the operation member to the fixing member relative to the support frame, the operation a longitudinal rear end side of the member through an interlocking mechanism is interlockingly connected to a member which rotates integrally with soil device to the rotation around the support shaft, soil device via the interlocking mechanism by extending and retracting the the operating member It is configured to rotate about the axis of the rotation support shaft ,
A mounting frame that is detachably attached to the toolbar; and the rotation support shaft, the operation member, and the interlocking mechanism are attached to the mounting frame, and the mounting portion that is attached to the toolbar of the mounting frame is attached to the toolbar Removably attached from the rear side, the pivot support shaft is disposed obliquely below the mounting portion, the operation member is disposed on the front side of the mounting portion, and the interlocking mechanism is disposed on the rear side of the mounting portion. In the present invention, a member that rotates integrally with the earthenware container is disposed on the rear end side in the length direction of the operation member.

The operating member is provided at a screw rod formed by forming a male screw on the outer peripheral portion, a cylinder body into which the screw rod can be inserted and removed, and a screw rod insertion side end of the cylinder body. And a nut to which the screw rod is screwed, and the screw rod or cylinder is rotated around the axis by the motor so that the screw rod is screwed and retracted with respect to the nut. It may be configured.
Moreover, it is good for the agricultural equipment fixture for attaching a soil cultivator to the support part extended from the back side of the said mounting part to be rotatably supported via the rotation spindle .
Further, the interlocking mechanism includes a rotating arm that rotates integrally with the earthenware device , a rotating link that is rotatably supported by the mounting frame, and that rotates when the operating member expands and contracts. becomes a connecting link for connecting the rotating arm, it is preferable that to place the said pivot link upward from the mounting portion.

Moreover, it is good to arrange | position the pivot which supports the said rotation link substantially right above the said toolbar , and to arrange | position a rotation support shaft to the back side from this pivot.

  According to the present invention, the agricultural implement can be raised and lowered by the expansion and contraction operation of the operation member configured to be extendable in the lengthwise direction by the screw-type expansion and contraction structure. The reaction force from the acting soil can be received even at the threaded portion of the screw of the operation member, and the load acting on the fixed portion for fixing the agricultural implement at the work position during work can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 8 show a first embodiment. In FIGS. 3 and 4, reference numeral 1 denotes a rotary cultivator that is mounted on a rear portion of a tractor (towing vehicle) through a mounting mechanism such as a three-point link mechanism so as to be movable up and down. It is.
The rotary cultivator 1 includes a machine frame 2, a cultivating unit 3 that cultivates soil, a cultivating cover 4 that covers the cultivating unit 3, and a support frame 6 that supports a pair of left and right gauge wheels 5.
The machine frame 2 has a support arm 8 projecting left and right from the gear case 7 in the center in the left-right direction, a transmission case 9 attached to the outer end of the left support arm 8, and a side frame attached to the outer end of the right support arm 8. It is mainly composed of a gate shape.

The cultivating unit 3 is configured by attaching and fixing a number of cultivating claws 11 on a claw shaft 10 that is supported between a lower portion of the transmission case 9 and the side frame so as to be rotatable about a horizontal axis. .
The power input from the PTO shaft of the tractor to the transmission mechanism in the gear case 7 through the joint shaft is transmitted to the claw shaft 10 through the transmission shaft in the left support arm 8 and the transmission mechanism in the transmission case 9. The tillage unit 3 is configured to be rotationally driven when the claw shaft 10 is rotationally driven in the direction of arrow A by power.

The tillage cover 4 includes an upper cover 12 that covers the top of the tillage unit 3, a rear cover 13 that covers the rear of the tillage unit 3, and side covers 14 that cover the left and right sides of the rear side of the tillage unit 3. 13 is pivotally connected to the rear end side of the upper cover 12 so as to be rotatable about a horizontal axis, and a cultivator 15 to be described later is attached to the lower portion of the central portion of the rear cover 13 with respect to the tilling portion 3. V-shaped notches are formed so that they can be attached close to each other, and the notches are closed with a lid.
The support frame 6 includes a pair of left and right support arms 16 arranged in the front-rear direction, an intermediate connecting member 17 that connects the front-rear direction intermediate portions of the left and right support arms 16, and rear end portions of the left and right support arms 16. And a mounting member (toolbar) 18 provided so as to connect the two.

Each of the left and right support arms 16 is configured to be adjustable in length in the front-rear direction from an outer cylindrical body 16A disposed in the front-rear direction and an inner cylindrical body 16B inserted from the rear end side of the outer cylindrical body 16A. The front end sides of the left and right outer cylinders 16A are pivotally connected to the support arm 8 on the same side in the left-right direction so as to be pivotable about the axis in the left-right direction. Connected by a connecting member 17, the rear ends of the left and right inner cylinders 16 </ b> B are connected by a tool bar 18.
The toolbar 18 is formed by a rectangular cylindrical cylinder having a horizontal axis, and both right and left sides extend outward in the horizontal direction from the left and right inner cylinders. 5 are detachably attached.

A reinforcing member 19 that is formed in a U-shape in a front-opened side view from the upper and lower walls and the rear wall that connects the rear ends of the upper and lower walls is disposed at a substantially central portion in the left-right direction of the toolbar 18. Further, the gear case 7 is provided with a lifting / lowering operation device 21 extending between the fixed top mast 20 and the intermediate connecting member 17, and the lifting / lowering operation device 21 allows the support frame 6 to pivot on the front end side. It is possible to adjust the vertical swing around the support (the height of the tool bar 18 can be adjusted).

On the rear part (toolbar 18) of the support frame 6, a soil cultivator 15 exemplified as an agricultural implement is located at a work position B where the ground work is towed and a non-work position C located above the work position B. Agricultural implement lifting / lowering device 22 for changing the position of the earthenware container 15 to the working position B and the non-working position C is provided.
In addition, as an agricultural implement which is attached to the support frame 6 and is raised and lowered by the agricultural implement lifting and lowering device 22, a vertical stand, a grooving device, a plowing plate plow for cultivating a farm field, a cultivating work, a vertical work, a grooving work Plows, plows, etc. used for the above may be used as long as they perform ground work by being pulled.

As shown in FIGS. 1 to 8, the farm equipment lifting / lowering device 22 includes a mounting frame 23 that is detachably attached to the support frame 6, a rotation support shaft 24 that rotatably supports the cultivator 15, and the cultivator 15. An operation member 25 for raising and lowering the operation member, an interlocking mechanism 26 for interlockingly connecting the operation member 25 and the earthenware vessel 15 side, and an operation handle 27 for manually operating the operation member 25 are provided.
The rotating support shaft 24, the operation member 25, the interlocking mechanism 26, and the operation handle 27 are attached to the mounting frame 23. In this embodiment, the farm equipment lifting / lowering device 22 is used as a unit with respect to the support frame 6. The agricultural implement attachment 28 for attaching the earthenware device 15 is incorporated in the agricultural implement raising / lowering device 22 and can be attached to and detached from the support frame 6 together with the agricultural implement raising / lowering device 22 (integral). it can.

The mounting frame 23 includes a mounting portion 29 that is detachably attached to the tool bar 18 of the support frame 6, a first support portion 30 (support portion) that supports a farm equipment fixture 28 for mounting the earthenware 15, and an operation member 25. , And a second support portion 31 that supports the operation handle 27 and the interlocking mechanism 26.
The mounting portion 29 is formed in a U-shape that is open forward in a side view from the upper and lower walls 29a and 29b and the rear wall 29c that connects the rear end sides of the upper and lower walls 29a and 29b. The reinforcing member 19 provided at the center is fitted from the rear side so that the tool bar 18 is sandwiched between the upper and lower walls 29a and 29b.

Further, the mounting portion 29 is provided on the upper and lower walls 29 a and 29 b of the mounting portion 29, the upper and lower walls of the reinforcing member 19, and the pair of left and right fixing pins 32 penetrating the upper and lower walls of the tool bar 18, and The fixing bolt 33 is screwed in a penetrating manner and fixed at its front end with a fixing bolt 33 that contacts the back surface of the reinforcing member 19.
Reference numeral 34 denotes a lock nut that locks the fixing bolt 33.
The first support portion 30 is formed in a plate shape, and is positioned at the center in the left-right direction of the tool bar 18 so that the thickness direction coincides with the left-right direction. It is integrally formed on the center side in the left-right direction of the mounting portion 29 so as to extend downward.

The first support portion 30 is provided with the rotation support shaft 24 that rotatably supports the agricultural equipment fixture 28 about the axis in the left-right direction. The rotation support shaft 24 is provided with the mounting portion. It is arranged below 29 and on the rear side.
The farm equipment fixture 28 has a mounting bracket 35 attached to the first support portion 30 and a mounting cylinder 36 fixed to the mounting bracket 35.
The mounting bracket 35 includes a pair of left and right main plates 35 </ b> A arranged opposite to each other in the left-right direction, and is connected to the front-rear direction middle portion by a connection plate 35 </ b> B, and is disposed below the mounting portion 29.

The main plate 35A has a left-right facing interval that is wider at the front side than the rear side, and the mounting cylinder 36 is arranged in the vertical direction on the front end side between the main plates 35A. The mounting cylinder 36 is connected to the main plate 35A. It is fixed.
An upper end side of a support member 37 provided in an upward projecting shape is inserted into the mounting cylinder 36 on the front side of the earthenware vessel 15 and the support member 37 is attached so that the vertical position can be adjusted.
Further, the rear side of the mounting bracket 35 is arranged so that the left and right main plates 35 </ b> A are positioned on both the left and right sides of the first support portion 30 of the mounting frame 23.

In the present embodiment, the rotation support shaft 24 is configured by a bolt arranged so that the axial center direction coincides with the left-right direction, and passes through one (left side) main plate 35A and the first support portion 30. A spacer collar 38 disposed between the left and right main plates 35A and penetrating the first support portion 30 is relatively rotatable on the rotation support shaft 24. The spacer collar 38 is screwed into the other (right) main plate 35A. It is fitted.
As a result, the farm equipment fixture 28 is supported so as to be rotatable about the axis of the rotation support shaft 24, and the farm equipment attachment 28 is rotated 180 ° rearward around the axis of the rotation support shaft 24. Accordingly, the cultivator 15 is configured to change its position from the work position B to the non-work position C.

Further, the farm equipment fixture 28 is provided with a position fixing means 39 for fixing the cultivator 15 between the work position B and the non-work position C.
As shown in FIG. 6, the position fixing means 39 includes lock holes 40, 41 formed in the left and right main plates 35 </ b> A of the mounting bracket 35 and the first support portion 30 of the mounting frame 23 so as to penetrate in the left and right directions, A lock pin 42 inserted into the holes 40 and 41, a holder 43 that holds the lock pin 42, and a spring 44 that urges the lock pin 42 in a direction of inserting the lock pin 42 into the lock holes 40 and 41 are provided.

  The lock holes 40 formed in the left and right main plates 35A are formed concentrically in the left-right direction, and the lock holes 41 formed in the first support portion 30 are at two locations, the working position B and the non-working position C of the cultivator 15. A pair is formed so as to coincide with the lock hole 40 formed in the main plate 35A, and the lock pin 42 and the first support are formed at the work position B or the non-work position C. By inserting through the lock hole 41 formed in the portion 30, the rotation of the agricultural implement fixture 28 around the rotation support shaft 24 becomes impossible, and the cultivator 15 is in each of the working position B or the non-working position C. The lock pin 42 resists the biasing force of the spring 44 from one of the lock holes 40 formed in the main plate 35A and the lock hole 41 formed in the first support portion 30. Rotation of the agricultural machinery fixture 28 (ridging 15) is allowed by pulled out.

The holder 43 is formed of a half cylinder, and is fixed to the outer surface of the left main plate 35 </ b> A so as to protrude leftward. A support wall 45 is provided on the left end side of the holder 43 in the left-right direction, and the lock pin 42. Passes through the support wall 45 so as to be movable in the left-right direction.
Further, the right side of the lock pin 42 is inserted through the lock hole 40 formed in the left and right main plates 35 and the lock hole 41 formed in the first support part 30 in the axial center direction of the lock pin 42. A locking pin 46 that contacts the outer surface of the left main plate 35 </ b> A in the state is provided, and the spring 44 made of a compression coil spring fitted into the locking pin 42 between the locking pin 46 and the support wall 45. Is interposed, and the lock pin 42 is urged in a direction to be inserted into the lock holes 40 and 41.

On the left end side of the lock pin 42, an operation rod 47 for hooking a finger or the like to move the lock pin 42 in the left-right direction is provided.
Further, on the left end side of the holder 43, an operating rod 47 is engaged at a position where the lock pin 42 is inserted through the lock hole 40 formed in the main plate 35A and the lock hole 41 formed in the first support portion 30. The operation pin is in the removal position where the lock pin 42 is removed from the first engagement portion 48 and the lock hole 40 formed in the right main plate 35A and the lock hole 41 formed in the first support portion 30. A second engaging portion 49 for holding the lock pin 42 in the removal position by engaging 47 is provided.

The second support portion 31 includes an attachment plate 51 provided in the attachment portion 29, a first cover body 52 attached and fixed to the attachment plate 51, and a second cover body attached and fixed to the first cover body 52. 53.
The mounting plate 51 is disposed on the right end side of the mounting portion 29 so that the plate thickness direction coincides with the left-right direction, and is integrally formed with the mounting portion 29.
The first cover body 52 is disposed on the right side of the mounting plate 51, and is formed of left and right side wall portions 52a disposed to face each other in the left-right direction, and a peripheral wall portion 52b that covers the upper surface side and the back surface side between the left and right side wall portions 52a. The left side wall 52 a is attached and fixed to the right side surface of the attachment plate 51.

An open U-shaped notch 53c is formed in the front half of the front side of the left and right side walls 52a of the first cover body 52 so that the tool bar 18 can be inserted into the notch 53c. A first cover body 52 is disposed.
The second cover body 53 includes a pair of left and right support plates 54 and an upper plate 55 fixed to the left and right support plates 54, and the left and right support plates 54 are arranged on the upper front side of the first cover body 52. The rear end side is overlapped and fixed to the outer surface of the side wall portion 52a of the first cover body 52 on the same side in the left-right direction, and is projected forward from the upper front portion of the first cover body 52. ing.

The upper side of the upper plate 55 is disposed and fixed on the upper part between the support plates 54, the front side is projected forward from the support plate 54, and the front end side is bent downward.
The operation member 25 is disposed between the support plate 54 and the left and right side wall portions 52a of the first cover body 52, and is configured to be extendable in the length direction (front-rear direction) by a screw-type extension structure.
Specifically, the operation member 25 includes a front screw rod 56 having a male screw formed on the outer peripheral portion, a rear cylinder 57 into which the screw rod 56 can be removably inserted, and the cylinder. And a nut 58 fixed to the front end side of the screw 57 and to which the screw rod 56 is screwed.

Therefore, by rotating the screw rod 56 about the axis and screwing it back on the nut 58, the screw rod 56 enters the cylindrical body 57 or protrudes from the cylindrical body 57. Therefore, the operation member 25 is configured to expand and contract.
A first bevel gear 59 is fixed to the front end side of the screw rod 56 of the operating member 25, and the first bevel gear 59 is held by a holder 60 so as to be rotatable about the axis of the screw rod 56. The second bevel gear 61 that meshes with the first bevel gear 59 is inserted from the side (right side), and is supported by the holder 60 so as to be rotatable about a horizontal axis.

The left and right side walls 60a of the holder 60 extend forward, and on the front end side of the left and right side walls 60a of the holder 60, a left and right support shaft 62 extending across the left and right side walls 60a is provided so as to be rotatable about the axis. A collar 63 disposed between the left and right side walls 60a of the holder 60 is fitted onto the support shaft 62 and is fixed by a pin.
The front end side of the upper plate 55 of the second cover body 53 is fixed to the collar 63, and the holder 60 is supported by the upper plate 55. Therefore, the front end side of the operation member 25 is placed on the front end side of the upper plate 55. Is supported through. .

The holder 60 is provided with a cover cylinder 64 that covers the screw rod 56.
One end side of the operation handle 27 passes through the second bevel gear 61 and is connected to the second bevel gear 61 so as to be integrally rotatable, and a grip 65 is provided on the other end side of the operation handle 27. 65 is arranged on the right and left outer sides of the right support arm 16 of the support frame 6 so that the operation handle 27 can be rotated on the right and left outer sides of the right support arm 16 of the support frame 6. When the operating handle 27 is rotated, the screw rod 56 of the operating member 25 is rotated around the axis by the meshing of the first and second bevel gears 59 and 61.

Note that the second bevel gear 61 may be connected to an output shaft of an electric (or hydraulic) motor, and the second bevel gear 61 may be rotated by the motor.
The interlocking mechanism 26 is rotatably supported by the cultivator 15 (agricultural equipment fixture 28), a rotating arm 66 that rotates integrally around the axis of the rotating support shaft 24, and the second support portion 31 of the mounting frame 23. The rotation link 67 that is rotated by the expansion and contraction operation of the operation member 25 and the connection link 68 that connects the rotation link 67 and the rotation arm 66 are provided in the first cover body 52 ( It is provided as a storage shape between the side wall portions 52a).

As shown in FIG. 8, one end side (base end side) of the rotation arm 66 is a support cylinder 69 arranged concentrically with the rotation support shaft 24 on the right side of the rear portion of the right main plate 35 </ b> A of the agricultural equipment fixture 28. The left end side of the support cylinder 69 is fixed to the rear right side surface of the right main plate 35A, and the rotating arm 66 is connected to the farm equipment fixture 28 (the earthenware container 15) via the support cylinder 69. It is comprised so that it may rotate integrally.
Further, a cylindrical shaft portion 70 disposed concentrically with the axis of the rotation support shaft 24 is provided on one end side of the rotation arm 66 as a right protruding shape. A bearing member 71 fixed to the right side wall portion 52a of one cover body 52 is supported so as to be rotatable about an axis.

A notch 72 is formed in the left side wall 52 a of the first cover body 52 to avoid interference with the support cylinder 69.
The rotation link 67 is composed of a pair of left and right bell cranks 67a and a cylindrical boss 67b provided at a pivotal support portion of the bell crank 67a. The boss 67b passes through the left and right bell cranks 67a. The left and right bell cranks 67a are connected to each other by the boss 67b.
The boss 67b of the rotation link 67 is externally fitted to a spacer collar 73 interposed between the side wall portions 52a of the first cover body 52, and the left and right side wall portions 52a of the first cover body 52 and the mounting plate are attached to the spacer collar 73. 51, and a rotation link 67 is inserted into the first cover body 52 (mounting frame 23) in the left-right direction by a spacer collar 73, a mounting bolt 74, and a nut 75 screwed to the mounting bolt 74. It is pivotally supported around the axis of.

The mounting bolt 74 is a pivot that rotatably supports the rotation link 67, and the pivot 74 is disposed on the upper side of the mounting portion 29 and substantially above the tool bar 18.
One arm portion 67a of the rotation link 67 is pivotally connected to a connection plate 50 provided on the rear end side of the operation member 25 via a pin 78 so as to be rotatable about a horizontal axis. The other arm portion 67b of the 67 is pivotally connected to one end side of the connecting link 68 via a pin 79 so as to be rotatable about a horizontal axis.
The other end side of the connecting link 68 is pivotally connected to the other end side (front end side) of the rotating arm 66 via a pin 80 so as to be rotatable about a horizontal axis.

The connecting link 68 is formed in an arc shape.
One end side (front end side) in the length direction of the operation member 25 is supported (pivoted) by a member fixed to the support frame 6 (in this embodiment, the upper plate 55 of the second cover body 53). The other end side (rear end side) in the length direction of the operation member 25 is interlocked and connected to a member (a support cylinder 69 in the present embodiment) that rotates integrally with the agricultural implement via the interlock mechanism 26.
In the farm equipment lifting / lowering device 22 having the above configuration, when the cultivator 15 is at the work position B, as shown in FIG. 1, the operation member 25 is in the extended state, and the pivot link 67 is pivoted with the operation member 25. The support portion (pin 78) is located obliquely above the rear of the pivot 74, and the pivot portion (pin 79) of the rotation link 67 with the connecting link 68 is located obliquely below the rear of the pivot 74. The other end side faces downward, and the connecting link 68 is arranged vertically.

In this state, when the cultivator 15 is pulled to perform the work, the reaction force received by the cultivator 15 from the soil acts on the lock pin 42, and the operating member 25 is screwed through the support cylinder 69 and the interlocking mechanism 26. This also acts on the portion, and the load acting on the lock pin 42 during work can be reduced.
Further, in order to lift the cultivator 15 from the working position B to the non-working position C, first, the lock pin 42 is removed from the lock holes 40 and 41 and the cultivator 15 can be rotated. After that, the operation handle 27 is rotated so that the operation member 25 contracts.

Then, one arm portion 67a of the rotation link 67 rotates to the front side, and the other arm portion 67b rotates to the upper side, so that the connection link 68 is pulled up. The earthenware container 15 is lifted by rotating backward about the axis 24 (see FIG. 2).
9 to 11 show a second embodiment, in which the operation member 25 is expanded and contracted by an electric motor 81.
In the second embodiment, the description of the same configuration as that of the first embodiment is omitted, and only the configuration is different.

The second cover body 53 is formed in a U-shape that is open downward from the left and right side wall parts 53a and the upper wall part 53b that connects the upper ends of the left and right side wall parts 53a. A portion 82 is provided, and the support shaft portion 82 is supported by the left and right side wall portions 53 a of the second cover body 53 so as to be rotatable around the axis in the left-right direction.
The operating member 25 is configured such that the cylindrical body 57 is positioned on the front side and the screw rod 56 is positioned on the rear side, and a shaft portion 83 provided on the front end side of the cylindrical body 57 rotates around the axis of the holder 60. A connecting plate 50 that is supported movably and provided on the rear end side of the screw rod 56 is pivotally connected to one arm portion 67a of the rotating link 67 via a pin 78 so as to be rotatable about a horizontal axis. Has been.

A motor 81 is attached to the holder 60, and an output shaft 81 a of the motor 81 is provided concentrically with the axis of the operation member 25. The output shaft 81 a of the motor 81 is on the front end side of the operation member 25. When the output shaft 81a of the motor 81 is rotated, the cylinder 57 of the operation member 25 is rotated around the axis and the operation member 25 is expanded and contracted.
The connecting link 68 has one end pivotally connected to the other arm 67b of the rotation link 67 at one end, and one end pivotally connected to the other end of the first link 68A via a pin 85. The other end side includes a second link 68B pivotally connected to the other end side of the rotating arm 66.

In addition, on the right side surface of the rotating arm 66, a contact member 84 is provided that is located above the second link 68B and contacts the second link 68B when the cultivator 15 is at the working position B. In the agricultural equipment lifting / lowering device 22 according to the embodiment having the above-described configuration, when the cultivator 15 is located at the work position B, the first link 68A of the connection link 68 is inclined forward, and the second link 68B is rearward. It is inclined and hits the contact member 84 from below.
When the earthenware container 15 is lifted, when the operation member 25 is contracted, the rotating arm 66 is initially lifted while the second link 68B is in contact with the contact member 84, and the second link 68B is in the middle. Is separated from the contact member 84, and the first link 68A and the second link 68B are formed in a straight line so that the rotating arm 66 is pulled up.

In this embodiment, since the earthenware container 15 is raised and lowered by the motor 81, the labor for raising and lowering the earthing machine 15 is reduced.
Further, since the connecting link 68 is linear, the production yield is good and the cost can be reduced.
12 to 15 show a third embodiment. Also in this embodiment, the description of the same configuration as that of the first embodiment will be omitted, and the difference in configuration will be described.
The tool bar 18 is formed by connecting the left and right cylinders 86 with a rotation support shaft 24 located at the center in the left-right direction of the support frame 6.

A rotation shaft 87 is fitted on the rotation support shaft 24 so as to be rotatable about a horizontal axis.
The agricultural implement fixture 28 is fixed to the rotating shaft 87, and the cultivator 15 is configured to change the position between the working position B and the non-working position C by rotating the rotating shaft 87. .
A movable plate 88 is fixed to the right end side of the rotating shaft 87, and a fixed plate 89 fixed to the right cylinder 86 of the tool bar 18 is provided on the right side of the movable plate 88.
A lock pin 42 of the position fixing means 39, a holder 43, and a spring 44 are provided on the rear side of the right side surface of the fixed plate 89. One lock hole 40 is provided in the fixed plate 89. A lock hole 41 through which the lock pin 42 is inserted is formed at the position B and the non-work position C.

This position fixing means 39 is functionally similar to the first embodiment.
The mounting frame 23 includes a mounting plate 51 fixed to the tool bar 18, a first cover body 52 fixed to the mounting plate 51, and a second cover body 53 fixed to the first cover body 52. It is configured.
The mounting plate 51 is fixed to the right end side of the left-side cylinder 86 of the tool bar 18, and the first cover body 52 is fixedly attached to the right side surface of the mounting plate 51.
The second cover body 53 includes a lower plate 90 positioned on the lower side of the operation member 25, and the front end side of the lower plate 90 and the front end side of the upper plate 55 have a cylindrical pivotal support portion having a horizontal axis. The front end side of the holder is supported by the pivotal support portion 91 via a support shaft 62 so as to be rotatable about a horizontal axis.

The rotation link 67 is pivotally supported by the mounting plate 51 and the first cover body 52, the proximal end side of the rotation arm 66 is fixed to the rotation shaft 87, and the connection link 68 is provided at the distal end side of the rotation arm 66. A pin portion 80 for pivotally connecting is formed.
The operation of raising and lowering the earthenware container 15 in this embodiment is substantially the same as that in the first embodiment.

It is a side view of the agricultural implement support apparatus concerning 1st Embodiment. It is a side view of an agricultural implement support apparatus when an agricultural implement is made into a non-working position. It is a side view of a rotary tiller. It is a top view of the rear part side of a rotary tiller. It is a plane sectional view of a part of agricultural implement support device. (A) is a plane expanded sectional view of an agricultural implement support apparatus, (b) is a back sectional view of a position fixing means. It is a side view of a mounting frame. It is a plane partial sectional view of the support part of an agricultural implement fixture. It is a side view of the agricultural implement support apparatus concerning 2nd Embodiment. It is a plane sectional view of an agricultural implement support device concerning a 2nd embodiment. It is a rear view of the agricultural implement support apparatus concerning 2nd Embodiment. It is a top view of the rear part side of the rotary tiller concerning a 3rd embodiment. It is a side view of the agricultural implement support apparatus concerning 3rd Embodiment. It is sectional drawing of the position fixing means of the agricultural implement support apparatus concerning 3rd Embodiment. It is a plane sectional view of a part of an agricultural implement support apparatus according to a third embodiment.

Explanation of symbols

6 Support frame 15 Cultivator (agricultural equipment)
18 Toolbar (Mounting member)
DESCRIPTION OF SYMBOLS 23 Mounting frame 24 Rotating spindle 25 Operation member 26 Interlocking mechanism 27 Operation handle 29 Mounting part 66 Rotating arm 67 Rotating link 68 Connection link 81 Motor B Work position C Non-work position

Claims (5)

牽 pull rotary tiller is freely mounted lifting the rear of the vehicle (1) of the machine frame (2) from soil device to the rear end of the tool bar (18) of the support frame provided behind the protruding shape (6) (15 ) Is supported by a pivot shaft (24) so as to be pivotable about a horizontal axis , and the soil cultivator (15) is pulled to the ground at the rear position of the rotary tiller (1). and repositionable on non-working position above the working line cormorants working position by reversing the working position in Atomawari about the axis of the rotating shaft from (B) (24) (B ) (C) In the farm equipment support device,
An operation member which is stretchable operated by and motor is configured longitudinally stretchable by a screw telescopic structure (81) (25) is provided, the lengthwise front end side supporting frame of the operating member (25) (6) and supported by the fixing member relative to said via operating member (25) in the lengthwise rear end side interlocking mechanism (26) pivoting axles (24) around the soil (15) integral times By interlockingly connecting to the moving member (69) and expanding and contracting the operating member (25), the earthenware device (15) rotates around the axis of the rotating support shaft (24) via the interlocking mechanism (26). Configured to work ,
The mounting frame (23) is detachably attached to the tool bar (18), and the rotation support shaft (24), the operation member (25), and the interlocking mechanism (26) are attached to the mounting frame (23). A mounting portion (29) attached to the tool bar (18) of the mounting frame (23) is detachably attached to the tool bar (18) from the rear side, and the rotating support shaft (24) is attached to the tool mounting portion (24). (29) is disposed obliquely below the rear, the operating member (25) is disposed on the front side above the mounting portion (29), and the interlocking mechanism (26) is disposed on the rear side of the mounting portion (29). A support device for an agricultural implement, characterized in that it is arranged from a member (69) that rotates integrally with the earthenware vessel (15) to the rear end side in the length direction of the operation member (25) . The operating member (25) includes a screw rod (56) having a male screw formed on the outer peripheral portion, a cylindrical body (57) in which the screw rod (56) can be removably inserted, and the cylindrical body (57 ) And a nut (58) to which the screw rod (56) is screwed. The screw (56) or the cylinder (57) by the motor (81). The screw rod (56) is rotated and retracted with respect to the nut (58) by rotating the shaft around the shaft center so as to be expanded and contracted. Agricultural equipment support equipment. An agricultural implement fixture (28) for attaching the earthenware device (15) to the support portion (30) extended from the back side of the mounting portion (29) is freely rotatable via a rotation support shaft (24). farm equipment supporting device according to claim 1 or 2, characterized in that it is supported. The interlocking mechanism (26) is rotatably supported by the rotating arm (66) that rotates integrally with the cultivator (15) and the mounting frame (23), and is rotated by the expansion and contraction of the operation member (25). And a connecting link (68) for connecting the rotating link (67) and the rotating arm (66). The connecting link (68) is provided above the mounting portion (29). farm equipment supporting device according to any one of claims 1 to 3, characterized in that the pivot link (67) was placed. The pivot shaft (74) pivotally supporting the pivot link (67) is disposed substantially directly above the toolbar (18), and the pivot pivot shaft (24) is disposed behind the pivot shaft (74). The supporting device for agricultural machinery according to claim 4, wherein

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