JP2005312362A - Tending machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tending machine capable of rapidly and stably carrying out change-over between resistance bars in an operation state of the tending machine and wheels for transfer in a moving state of the tending machine. <P>SOLUTION: This tending machine is equipped with a tending machine body 1 in which an operating apparatus 13 operated by power from an engine 12 is installed on the front side of a machine body 11 and a control lever 14 is installed on the rear side, a resistance bar 2 in which the base end is attached to the rear side of the tending machine body 1 so as to enable turning into the longitudinal direction and wheels 3 for transfer installed integrally with the resistance bar 2, and the resistance bar 2 can be changed over between a storage state by forward turning and an operation state by backward turning, and in the storage state of the resistance bar 2, the axle B of each wheel 3 for transfer is positioned below a turning supporting point A and ahead of the turning supporting point A of the resistance bar, and the top side of the resistance bar 2 is brought into contact with the side of the tending machine body 1 and supported by the side of the tending machine body 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a management machine used when performing various operations such as tillage work in a field, and more particularly, quickly switches between a resistance rod in a work state of the management machine and a moving wheel in a movement state of the management machine. In addition, the present invention relates to a management machine that can be performed stably.

  In a management machine that performs work by attaching various work devices to the power shaft in the field, for example, in a management machine that performs work by attaching a tillage device, a resistance bar is attached to the rear side of the management machine body during work, By adjusting the tip of the resistance rod to the ground, the tillage depth is adjusted by the tillage device to adjust the traveling speed of the management machine, and when moving the management machine, the resistance bar is removed and the moving wheel is attached, It was used to move the management machine to work places. When working with such a management machine, it is necessary to have a resistance rod at the time of work and a wheel for movement at the time of movement. It is necessary to remove the wheel and attach a moving wheel, or to cause troublesome work, resulting in a decrease in work efficiency.

  On the other hand, the resistance bar a is maintained by maintaining the use state (FIG. 7) and the folded state (FIG. 8) of the resistance bar a by the urging force of the spring b and moving the cultivator backward in the use state of the resistance bar a. It is known that the cultivator can be moved naturally from the cultivated soil and held in a folded state, and the cultivator can be easily moved (see, for example, Patent Document 1). In the folded state, the resistance bar a is held in the horizontal position by the urging force of the spring b, so that the operation bar c integrated with the resistance bar a must be pulled up to return the resistance bar a to the use state. Troublesome work not only reduces work efficiency but also does not require removal of the resistance rod a when moving the cultivator, but it does not have wheels for movement, making it difficult to move to the work place. Than it is.

  In addition, the resistance bar and the wheel for movement are integrally configured and attached to the rear part of the cultivator main body so as to be pivotable in the front-rear direction. It is known that the wheel is grounded by the movement and the wheel is locked by a foot-operated latch, and at the time of work, the locking by the foot-operated latch is released and the resistance rod and the wheel are rotated backward (for example, (See Patent Document 2.) Since this tiller has a stepping type latch mechanism, the structure is complicated and the cost is increased, and the wheel is locked every time it shifts from the moving state to the working state. In order to release, it is necessary to operate the foot-operated latch with one foot, and an unstable working posture is forced on the cultivated soil softened by the tilling work, which may cause the operator to fall.

Registered Utility Model No. 3099176 (paragraphs 0014 to 0016) JP-A-62-134001 (Gazette 4, column 20 to 44; column 6, line 18 to 31)

  As described above, in the technique described in Patent Document 1 of the prior art, in order to return the resistance rod to the use state, the troublesome work that the operation rod of the resistance rod has to be pulled up is only caused to reduce the work efficiency. In addition, since there is no moving wheel, there is an inconvenience that it makes it difficult to move the cultivator to the work place. In addition, the structure described in Patent Document 2 has a structure with a foot-operated latch mechanism. In addition to being complicated and costly, there is an inconvenience that an unstable work posture is forced on the soft cultivated soil by one foot operation of the foot-operated latch, which may cause the operator to fall.

  The present invention can solve the above disadvantages at once, and can quickly and stably switch between the resistance rod in the working state of the management machine and the moving wheel in the movement state of the management machine. The purpose is to provide a management machine that can be used.

  In order to achieve the above object, an invention according to claim 1 is directed to a management machine main body provided with a working device operated by power from an engine on the front side of the machine body and a steering handle on the rear side, It has a resistance bar with a proximal end attached to the rear side so that it can be rotated in the front-rear direction, and a moving wheel integrated with the resistance bar. In the retracted state of the resistance rod, the axle of the moving wheel is located below and forward of the pivot point of the resistance rod and the tip end side of the resistance rod is in contact with and supported by the management machine main body. It is what has been.

  In the invention according to claim 1, the work device operated by the power from the engine is operated by the steering handle, and the work according to various work devices is performed. In this case, the traveling speed of the management machine is adjusted by the ground resistance of the resistance rod, and when the working device is a tilling device, the tilling depth can be adjusted along with the adjustment of the traveling speed.

  Further, the resistance rod is integrally provided with a moving wheel, and the axle of the moving wheel is positioned below and in front of the rotation fulcrum of the resistance rod in the retracted state of the resistance rod. At the same time, the leading end side of the resistance rod is supported by the management machine main body, so that the management machine main body is supported by the moving wheel via the resistance rod in the retracted state of the resistance rod. The management machine can be easily moved to the work place by the moving wheel in the storage state, or can be easily moved to another place after the work is completed.

  In addition, since the resistance bar can be rotated with respect to the management machine main body, the management machine main body is moved forward with the operation handle side as a fulcrum by the operation of the control handle in the retracted state of the resistance bar. By moving the wheel axle to the rear from the pivoting fulcrum of the resistance rod and grounding the tip of the resistance rod, the resistance rod can be quickly and stably transferred from the retracted state to the working state only by operating the steering handle. Moreover, in the working state of the resistance rod, the control rod body is moved backward by operating the steering handle, and the axle of the moving wheel is moved forward from the rotation fulcrum of the resistance rod, so that the resistance rod is removed from the working state. The storage state can be quickly and stably shifted only by operating the steering handle.

  According to a second aspect of the present invention, in the first aspect of the present invention, when the resistance bar is stored, the tip end side of the resistance bar is stored near the power shaft of the work device on the management machine main body side. .

  In the invention which concerns on Claim 2, since the front end side of the resistance rod is housed in the vicinity of the power shaft of the work device on the management machine main body side, the front end side of the resistance rod is the position of the work device when the management machine is moved. When the power shaft is not in contact with the power shaft and the working device is a tilling device, the resistance rod is housed in the rotation trajectory of the tip of the tilling nail. The management machine can be moved without grounding the resistance bar together with the non-grounded state.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, in the working state of the resistance rod, the moving wheel is positioned above the power shaft of the working device on the management machine body side. The proximal end side of the resistance rod is abutted and supported on the management machine main body side.

  In the invention according to claim 3, since the moving wheel is positioned above the power shaft of the working device in the working state of the resistance rod, the moving wheel contacts the ground in the working state of the resistance rod. Therefore, there is no hindrance to the work by the working device, and the proximal end side of the resistance bar is abutted and supported by the management machine main body side in the working state of the resistance bar. The grounding resistance of the resistance bar is adjusted by the up and down operation of the control rod, and the traveling speed of the management machine can be adjusted. In addition, when the working device is a tilling device, the tilling depth is adjusted with the adjustment of the traveling speed. be able to.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, in the retracted state of the resistance bar, the management machine body is turned upward with the work device side as a fulcrum by operating the steering handle. By moving forward while rotating, moving the axle of the moving wheel to the rear from the rotation fulcrum of the resistance rod, grounding the distal end side of the resistance rod and making the base end abut and support the management machine body side, The resistance rod is shifted to the working state. In the working state of the resistance rod, the control machine main body is moved backward by operating the steering handle, and the axle of the moving wheel is moved forward from the rotation fulcrum of the resistance rod and the resistance The resistance rod is shifted to the housed state by abutting and supporting the tip end side of the rod to the management machine main body side.

  In the invention according to claim 4, in the retracted state of the resistance rod, the management machine main body is moved forward by rotating the steering wheel with the operation device side as a fulcrum by operating the steering handle, and the axle of the moving wheel is rotated by the rotation of the resistance rod. By moving the resistance rod backward from the moving fulcrum and grounding the tip of the resistance rod, the resistance rod can be quickly and stably transferred from the housed state to the working state only by operating the steering handle. In this state, the control unit body is moved backward by operating the control handle, and the axle of the moving wheel is moved forward from the rotation fulcrum of the resistance rod. The transition can be made quickly and stably.

  The present invention is configured as described above, and in the retracted state of the resistance rod rotated forward, the axle of the moving wheel is positioned below and forward of the rotation fulcrum of the resistance rod and the tip of the resistance rod. Since the side is supported by the management machine main body side, the management machine body is supported by the moving wheel via the resistance bar in the resistance bar storage state. Can be easily moved to the work place by the wheel for movement, or can be easily moved to another place after the work is completed. The traveling speed of the machine can be adjusted, and when the working device is a tilling device, the tilling depth can be adjusted with the adjustment of the traveling speed.

  In addition, since the resistance bar can be rotated with respect to the management machine main body, the management machine main body is moved forward with the operation handle side as a fulcrum by the operation of the control handle in the retracted state of the resistance bar. By moving the wheel axle to the rear from the pivoting fulcrum of the resistance rod and grounding the tip of the resistance rod, the resistance rod can be quickly and stably transferred from the retracted state to the working state only by operating the steering handle. Moreover, in the working state of the resistance rod, the control rod body is moved backward by operating the steering handle, and the axle of the moving wheel is moved forward from the rotation fulcrum of the resistance rod, so that the resistance rod is removed from the working state. The storage state can be quickly and stably shifted only by operating the steering handle.

Embodiments of the present invention will be described in detail with reference to the drawings.
1 is a side view showing a movement state of a management machine according to an embodiment of the present invention, and FIG. 2 is a side view showing a transition state from the movement state of the management machine to a work state. FIG. 4 is a side view showing a working state of the management machine, and FIG. 4 is a side view showing a transition state from the working state to the moving state of the management machine.

  First, the outline of the embodiment of the present invention will be described in the case where a tilling device is used as a working device. The management machine has a machine body 11 in which a normal posture assumes a forwardly lowered posture, and an intermediate front side of the machine body 11. The mounted engine 12 as a power source, the tiller 13 attached to the front of the body 11 at the lower part of the engine 12 and operated by the power of the engine 12, and the steering handle provided at the rear of the body 11 so as to be raised rearward. 14, a resistance bar 2 connected to a hitch 15 rotatably provided in the front-rear direction on the middle rear side of the machine body 11, and a middle part on the middle rear side of the resistance bar 2 It is comprised from the wheel 3 for a movement.

  The airframe 11 is composed of a relatively large-diameter pipe material, and a support member 16 ′ that supports the transmission device 16 of the engine 12 is provided at the front of the airframe 11. A support base 12 ′ that extends to the front side and mounts the engine 12, and a support member 15 ′ that extends to the rear side and rotatably supports the hitch 15 by a pivot A serving as a pivot point. 11 is provided with a support member 14 ′ for supporting the steering handle 14.

  The engine 12 is mounted on the support base 12 ′ and started by a starter (not shown), and the power of the engine 12 is transmitted to the power shaft 17 of the tillage device 13 via a centrifugal clutch (not shown) built in the transmission device 16. However, the rotational speed of the engine 12 is adjusted from a throttle (not shown) of the engine 12 through a cable by a throttle lever 18 disposed at the hand of the steering handle 14, and when the engine 12 reaches a predetermined rotational speed, the centrifugal clutch Are coupled and transmitted to the power shaft 17 of the tilling device 13.

  Various working devices are attached to the power shaft 17 according to the work, but in the case of a tilling work, a tilling claw 13 'is attached, and the field is changed by the rotation of the tilling claw 13' by the power from the transmission device 16. The plowing work is performed by operating the control handle 14 while the management machine body 1 moves forward while plowing.

  Thus, the cylindrical hitch 15 is connected to the support member 15 ′ extending to the rear side from the intermediate portion of the machine body 11 in the management machine body 1 by the pivot A so as to be pivotable in the front-rear direction. In addition, a stopper 19 is provided on the support member 15 'in the upper part of the pivot A, and when the cylindrical hitch 15 is rotated upright, that is, the hitch 15 is counterclockwise from the state shown in FIG. The hitch 15 is supported in contact with the stopper 19 when it is turned to the upright state shown in FIG.

  The cylindrical hitch 15 is fitted with the proximal end side of the resistance rod 2, and the hitch 15 and the resistance rod 2 are connected by a connecting pin 21 penetrating in a skewered manner. It can be rotated with the hitch 15 with respect to the machine main body 1 and can be switched between a housed state by turning forward and a work state by turning backward, and the resistance bar 2 is moved to an intermediate lower side in the housed state. The moving wheel 3 is fixed via the support member 31, and the axle B of the moving wheel 3 is below and forward of the pivot A of the hitch 15 in the retracted state (see FIG. 1) of the resistance rod 2 rotated forward. In addition, the front end side of the resistance rod 2 is in contact with and supported by the transmission device 16 on the management machine main body 1 side. Thereby, since the management machine main body 1 is supported by the moving wheel 3 via the resistance rod 2, the management machine can be easily moved to the work place by the moving wheel 3, or easily moved to another place after the work is completed. Can be moved.

  Further, in the working state by the backward rotation of the resistance rod 2 (see FIG. 3), the moving wheel 3 is located above the power shaft 17 of the tillage device 13 on the management machine body 1 side, and the resistance rod 2 The proximal end side is supported by a stopper 19 on the management machine main body 1 side via a hitch 15. Thereby, since the moving wheel 3 is positioned above the power shaft 17 of the tilling device 13 in the working state of the resistance rod 2, the moving wheel 3 does not bite into the soil. 13, and the base end side of the resistance bar 2 is supported on the management machine main body 1 side in the working state, so that the grounding resistance of the resistance bar 2 is adjusted by operating the steering handle 14 up and down. The traveling speed of the management machine can be adjusted, and the tilling depth can be adjusted with the adjustment of the traveling speed. The height of the hitch 15 can be adjusted by drilling a plurality of connecting holes 22 in the axial direction of the resistance rod 2, thereby enabling the height of the steering handle 14 to be adjusted during operation.

  The operation mode of the management machine configured as described above will be described. First, when the management machine is moved to the work place, as shown in FIG. 1, the front side of the resistance bar 2 whose base end side is connected to the hitch 15 is shown. In the retracted state by rotation, the axle B of the moving wheel 3 is positioned below and in front of the pivot A of the hitch 15, and the distal end side of the resistance rod 2 is in contact with the transmission device 16 on the management machine main body 1 side. Since the management machine main body 1 is supported by the moving wheel 3 via both ends of the resistance rod 2, the management machine main body 1 is supported by the movement wheel 3 by the downward operation of the steering handle 14. As a result, the tiller 13 is pivoted upward θ to obtain a moving state in which the tiller 13 is separated from the ground, and the management machine is moved to the work place by the moving wheel 3.

  Next, in the cultivation work by the management machine, as shown in FIG. 2, the cultivation apparatus of the management machine main body 1 is operated by the upward operation of the steering handle 14 in a state where the cultivation apparatus 13 is operated in the retracted state of the resistance bar 2. 13 is moved forward while rotating φ around the moving wheel 3 as a fulcrum, and the resistance wheel 2 is rotated backward relative to the pivot A as a rotating fulcrum by the operation of the management machine body 1. As shown in FIG. 3, the resistance rod 2 is rotated until the proximal end side is supported by the stopper 19 on the management machine main body 1 side via the hitch 15 and is supported by the stopper 19. The working state can be shifted to the working state, and the working state in which the resistance bar 2 is stood up from the housed state in which the resistance bar 2 is housed can be quickly and stably shifted only by operating the steering handle 14.

  When the plowing work is completed and the management machine is moved to another location, as shown in FIG. 4, management is performed by operating the steering handle 14 while the tiller 13 is stopped in the working state of the resistance bar 2. The machine body 1 is moved backward, and the axle B of the moving wheel 3 is relatively moved forward from the pivot A of the hitch 15 by the operation of the management machine body 1. 1 is supported until it is supported by the transmission device 16 on the side, and can be shifted to the stored state in the state shown in FIG. 1 supported by the transmission device 16, and the resistance rod 2 is moved from the working state in which the resistance rod 2 is erected. The storage state can be quickly and stably shifted only by operating the steering handle 14, and further, the movement state that facilitates the movement of the manager can be obtained by separating the tillage device 13 from the ground.

  In the working state by the backward rotation of the resistance rod 2 (see FIG. 3), the pivot A is placed at the upper position of the pivot A in the support member 15 ′ supporting the hitch 15 and the lower position of the pivot A in the hitch 15. A so-called toggle mechanism that stretches the coil spring across the bridge gives a knot to the switching operation at the time of switching from the moving state of the management machine to the working state or from the working state to the moving state. It is also possible to guide the operation. Further, FIG. 6 shows an integrated configuration of the resistance rod 2 and the moving wheel 3, and in this embodiment, the moving wheel 3 is an example of two wheels, but it may be a single wheel.

It is a side view which shows the movement state of the management machine which is one Example of this invention. It is a side view which similarly shows the transition state from the movement state of a management machine to a working state. It is a side view which similarly shows the working state of a management machine. It is a side view which similarly shows the transition state from the working state of a management machine to a movement state. It is a rear view which similarly shows the working state of a management machine. It is a perspective view which shows the integral structure of a resistance rod and the wheel for a movement. It is a perspective view which shows the use condition of the conventional resistance rod. It is a perspective view which shows the folding state of the conventional resistance rod.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Management machine main body 11 Airframe 12 Engine 13 Work apparatus 14 Steering handle 2 Resistance rod 3 Wheel for movement A Axis B as pivot point B Axle

Claims (4)

  A management machine body provided with a working device operated by power from the engine on the front side of the machine body and a steering handle on the rear side, and a base end side attached to the rear side of the management machine body so as to be pivotable in the front-rear direction. A resistance rod and a moving wheel provided integrally with the resistance rod are provided. The resistance rod can be switched between a retracted state by forward rotation and a working state by backward rotation. A management machine characterized in that an axle of a wheel is positioned below and in front of a pivoting fulcrum of a resistance bar, and a front end side of the resistance bar is abutted and supported on the management machine main body side.   2. The management machine according to claim 1, wherein in a state where the resistance bar is stored, the tip side of the resistance bar is stored in the vicinity of the power shaft of the work device on the management machine main body side.   In the working state of the resistance rod, the moving wheel is positioned above the power shaft of the working device on the management machine main body side, and the proximal end side of the resistance bar is supported by the management machine main body side. The management machine according to claim 1 or 2, characterized by the above-mentioned.   In the retracted state of the resistance rod, the control machine main body is advanced by rotating the steering wheel upward with the operation device side as a fulcrum, and the axle of the moving wheel is moved backward from the rotation fulcrum of the resistance rod. The resistance rod is shifted to the working state by grounding the tip side of the resistance rod and supporting the base end side against the main body of the management machine, and is managed by operating the steering handle in the working state of the resistance rod. The machine body is moved backward, and the axle of the moving wheel is moved forward from the pivoting fulcrum of the resistor bar, and the tip of the resistor bar is brought into contact with and supported by the management machine body, so that the resistor bar is shifted to the storage state. The management machine according to any one of claims 1 to 3, wherein the management machine is configured.

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