JP3124172B2 - Cultivator with working weight and lifting handle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a cultivator, and more particularly to a structure for mounting a working weight and a lifting handle.

[0002]

2. Description of the Related Art A conventional cultivator is shown in FIGS. FIG.
Is a side view of the whole, and FIG. 7 is a front view. The drive unit 6 is provided with a gear case 8 and a support arm 7, and a rotor shaft 10 </ b> J is supported at the tip of the support arm 7. The power of the drive unit 6 is transmitted to the rotor shaft 10J via the gear case 8 and the support arm 7, and the plurality of rotors 10 (see FIG. 7) fixed to the rotor shaft 10J are rotationally driven to make soil. The guard 9 attached to the gear case 8 is a mudguard.

[0003] An operator operates the tiller by holding the working handle 14 to perform a tillage operation. The working handle 14 is connected to the bar 12, and the bar 12 is fixed to the gear case 8 via the connection portion 13. Further, a resistance bar 16 and a moving wheel 18 are fixed to the gear case 8, and the rotor 10 is pressed by bringing the resistance bar 16 into contact with the ground as shown in FIG. When the cultivator is moved, the resistance bar 16 and the moving wheel 18 are rotated by 180 degrees about the rotating shaft 17 to bring the moving wheel 18 into contact with the ground. The lever 17a is a fixed lever for fixing the rotation of the resistance bar 16 and the moving wheel 18.

[0004] When the cultivator is mounted on a vehicle or stored, it is necessary to lift the entire cultivator. For such a case, a lifting handle 60 is fixed to the tip of the guard 9. When the lifting handle 60 is gripped and lifted, the weight of the cultivator is balanced on both sides.

A work weight 6 is provided at the tip of the guard 9.
2 is also fixed. The work weight 62 is provided to press the rotor 10 against the soil during the tilling work. As shown in FIG. 7, screw shafts 65 are provided on the guard 9, and these screw shafts 65 pass through the screw holes of the working weight 62, and are fastened and fixed with nuts 64. Note that two screw shafts 65 are used to securely fix the working weight 62 (see FIG. 7).

FIG. 8 shows another conventional example. In this cultivator, a first lifting handle 66 is fixed to a gear case 68, and a second lifting handle 67 is fixed to a front portion. The tilling machine is lifted by holding the first lifting handle 66 and the second lifting handle 67. As shown in FIG. 8, a working weight 68 is fitted into the second lifting handle 67, and the rotor 10 is pressed against the soil during the tilling operation.

[0007]

The conventional cultivator has the following problems. First, in the cultivator shown in FIGS. 6 and 7, since the lifting handle 60 is provided at the tip of the guard 9 as described above, for example, when storing the cultivator, the lifting handle protrudes and causes an obstacle. Become
There is a problem that a large storage space must be secured.

Further, it is necessary to provide two screw shafts 65 at the tip of the guard 9 in order to attach the working weight 62, and such a dedicated member complicates the configuration. Further, in order to fix the working weight 62, the nut 64 must be tightened with respect to each screw shaft 65, and there is a problem that the fixing work of the working weight 62 is troublesome.

In particular, depending on the condition of the soil, the working weight 6
2 may be removed for tilling work. For example, when the soil is soft and sticky, the working weight 6 is used to reduce the load applied to the rotor 10.
Remove 2 and work. Therefore, it is extremely inconvenient if it takes time to attach and remove the working weight 62.

In the tiller shown in FIG. 8, a working weight 68 is attached by being fitted into a second lifting handle 67. For this reason, the work of attaching the working weight 68 to the cultivator shown in FIGS. 6 and 7 is relatively easy. However, with this tiller,
In addition to the first lifting handle 66, it is necessary to provide a second lifting handle 67 to which the working weight 68 is attached. Therefore, there is a problem that the number of parts increases and the configuration becomes complicated.

Further, the second lifting handle 67 is provided in front of the cultivator, and the work weight 68 attached thereto is also shifted forward with respect to the rotor 10. Therefore, the weight of the working weight 68 is not sufficiently applied to the rotor 10 during the tilling operation.

Accordingly, the present invention has a simple structure because the lifting handle does not become an obstacle when the cultivator is stored, and a dedicated member such as a screw shaft for attaching a working weight and a second handle are not required. It is an object of the present invention to provide a work weight in which the work weight can be easily attached and fixed and the work weight can be sufficiently loaded on the rotor, and a tiller having a lifting handle. .

[0013]

[0014]

[SUMMARY OF] cultivator with working weights and lifting handle according to claim 1, the drive unit, a power transmission portion provided in the drive unit, the rotor portion supported by the power transmission part A rotor section that is driven to rotate by receiving the power of the driving section to plow the soil, a lifting handle provided for lifting the cultivator, and an operation for pressing the rotor section toward the soil during tilling work. In a cultivator having a working weight provided with a weight and a lifting handle, the lifting handle is provided in the power transmission unit and is located substantially at the position of the center of gravity of the entire cultivator, and the tilling cultivates soil by the rotor unit. Work
At the time of work, it is provided substantially vertically above the rotor part, and a penetrating space for penetrating the lifting handle is formed in the working weight, and the lifting handle is penetrated into the penetrating space. A work weight is attached to the work piece.

[0015]

In the cultivator having the lifting handle according to the first aspect, the lifting handle is provided on the power transmission section and is provided only at a position substantially at the center of gravity of the entire cultivator.

As described above, the lifting handle is provided directly on the power transmission portion, and for example, the lifting handle is not attached to a mudguard or the like from the rotor portion. Further, since the lifting handle is provided substantially at the position of the center of gravity of the entire cultivator, when the cultivator is lifted, the balance can be maintained on both sides of the lifting handle. Further, one lifting handle is provided almost only at the position of the center of gravity of the entire cultivator, and no other lifting handle is provided.

According to the first aspect of the present invention, there is provided a cultivator having a working weight and a lifting handle, wherein the lifting handle is provided at a power transmission portion and is located substantially at the center of gravity of the entire cultivator, and soil is removed by a rotor portion. Plowing tillage
At the time of operation, it is provided almost vertically above the rotor unit. And a penetration space for penetrating the lifting handle is formed in the working weight,
The working weight is attached by passing the lifting handle through this through space.

Therefore, there is no need to provide a dedicated member for attaching the working weight, for example, a screw shaft. In addition, the working weight attached to the lifting handle is provided substantially vertically above the rotor part, so that a sufficient weight can be added to the rotor part.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a cultivator having a working weight and a lifting handle according to the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the entire configuration of the cultivator of the present embodiment, and FIG. 2 is a front view.

The drive unit 6 includes a gear case 8 and a support arm 7
The support arm 7 has a rotor shaft 1
0J is supported. The gear case 8 and the support arm 7 are a power transmission unit in the present invention. The gear case 8 has a built-in reduction gear, and the power of the driving unit 6 is reduced by the reduction gear.
It is transmitted to 0J.

As shown in FIG. 2, a plurality of rotors 10 are fixed to a rotor shaft 10J. And the rotor shaft 1
The plurality of rotors 10 are also rotationally driven by the rotation of OJ receiving the power of the driving unit, and the rotating rotor 10 causes soil to be generated. Note that a guard 9 for preventing mud is attached to the gear case 8.

A bar 12 is fixed to the gear case 8 via a connecting portion 13, and a working handle 14 is further connected to the bar 12. The operator operates the cultivator by holding the working handle 14 to perform tilling work. As shown in FIG. 1, a resistance bar 16 is attached to the connection portion 13. The operator can use this resistance rod 1 during tilling work.
6 is pressed against the ground, and work is performed while controlling the progress of the cultivator. The angle of the resistance bar 16 can be switched around the resistance rod center axis 16J according to the height of the worker.

A moving wheel 18 is fixed to the resistance bar 16. Two moving wheels 18 are provided side by side in the direction of the rotor shaft 10J (see FIG. 2). At the time of the tilling work, the work is performed with the resistance bar 16 in contact with the ground as shown in FIG. On the other hand, when moving the cultivator, the resistance bar 16 and the moving wheel 18 are rotated 180 degrees around the rotation shaft 17 so that the moving wheel 18 is positioned so as to be in contact with the ground (not shown). Then, the tiller is moved in this state. By operating the lever 17a, the resistance bar 16,
The moving wheel 18 is rotated and fixed.

When the cultivator is mounted on a vehicle or stored, for example, it is necessary to lift the entire cultivator. For this purpose, a lifting handle 2 is provided. In this embodiment, the lifting handle 2 is fixed to the gear case 8. FIG. 3 shows details of a fixed portion between the lifting handle 2 and the gear case 8. 3A is a side view, and FIG. 3B is a front view. In FIG. 3B, the guard 9 and the like are omitted. As shown in FIG. 3B, both ends 2a of the lifting handle 2 are fixed with fixing bolts 20. FIG.
It is a figure which shows the state lifted in the 0 direction. As shown in FIG. 5, the lifting handle 2 is provided substantially at the position of the center of gravity of the whole cultivator, and when the lifting handle 2 is gripped and lifted, the weight of the cultivator can be balanced on both sides thereof. ing.

As described above, since the lifting handle 2 is provided directly on the gear case 8, it is more convenient for storage and storage than a conventional cultivator. That is, as shown in FIG. 6, the conventional cultivator is positioned so as to protrude from the entire cultivator since the lifting handle 60 is attached to the guard 9. On the other hand, in the present embodiment, the lifting handle 2 is provided directly on the gear case 8 and does not protrude unlike a conventional cultivator.
The lifting handle does not become an obstacle during storage, and there is no need to secure a large storage space.

In the cultivator of this embodiment, there is only one lifting handle 2. For example, like the conventional cultivator shown in FIG.
Is not provided. For this reason, the number of parts is reduced,
The configuration can be simplified.

The lifting handle 2 is not limited to the one shown in the present embodiment, and any other shape may be used as long as it is suitable for lifting the cultivator. Also, the mounting position may be provided at another location as long as it does not hinder storage and storage. For example, the lifting handle 2 can be attached to the drive unit 6.

As shown in FIGS. 1 and 2, a working weight 4 is attached to the lifting handle 2. The work weight 4 is for pressing the rotor 10 against the soil during the tilling work. The details of the working weight 4 are shown in FIG. A is a side view, and B is its plan view. The working weight 4 has a mounting hole 4K as a penetration space.
Are formed. The working weight 4 is attached by passing the lifting handle 2 through the attachment hole 4K.

In this embodiment, the mounting hole 4K is formed obliquely to the bottom surface 4M of the working weight 4 (FIG. 4A). Thereby, when the working weight 4 is attached to the lifting handle 2, the bottom surface 4M is located along the guard 9 that is curved and extends forward (see FIG. 1). .

The lifting handle 2 is connected to the rotor 10
Is provided substantially vertically above (see FIG. 1). Therefore, the work weight 4 attached to the lifting handle 2 is also located above the rotor 10, and a sufficient weight can be added to the rotor 10. That is, the rotor 10 can be reliably pressed against the soil during the tilling operation.

A rubber cushion 43 is fixed to the bottom surface 4M of the working weight 4 as a vibration isolating member. The rubber cushion 43 can prevent the working weight 4 from vibrating during the tilling operation, and can improve the operability of the tilling operation. Note that the vibration isolating member may be any member having a vibration isolating effect, and for example, a resin cushion or the like may be used. Also, a recess 42 is formed on the surface 4H of the working weight 4 as shown in FIGS. 4A and 4B. The recess 42 makes it easier to hold the lifting handle 2 with the working weight 4 attached.

The working weight 4 is provided with a pressing fixing screw 5 as a pressing fixture. A screw hole is formed in the side surface of the work weight 4, and the pressing and fixing screw 5 is screwed and penetrated into the screw hole, and the tip 5T is attached to the mounting hole 4K.
(See FIG. 4B). After attaching the working weight 4 by passing the lifting handle 2 through the mounting hole 4K, the pressing and fixing screw 5 is tightened. As a result, the tip 5T presses the side surface of the lifting handle 2,
The work weight 4 is fixed to the lifting handle 2. When removing the working weight 4 from the lifting handle 2, the pressing and fixing screw 5 is loosened to release the pressing on the lifting handle 2.

The working weight 4 is not limited to the one shown in the present embodiment, and the through space may be notched so as to fit into the lifting handle 2 instead of the mounting hole 4K (not shown). Further, the pressing fixture is also a pressing fixing screw 5.
The present invention is not limited to this, and other structures can be adopted as long as the work weight 4 can be fixed by pressing the lifting handle 2.

As described above, since the working weight 4 is attached by penetrating the lifting handle 2 into the attachment hole 4K, the working weight 4 is, for example, a dedicated screw shaft 65 (FIGS. 6 and 7) in a conventional cultivator. There is no need to provide a member, and the configuration can be simplified. Further, since the working weight 4 can be mounted simply by penetrating the lifting handle 2 into the mounting hole 4K, the mounting work is easy.

Further, the working weight 4 can be fixed by pressing the lifting handle 2 with the tip 5T of the pressing and fixing screw 5, so that the mounting and detaching work of the working weight 4 is easy.

[0036]

In the tilling machine having the lifting handle according to the first aspect, the lifting handle is provided on the power transmission unit and is provided only at a position substantially at the center of gravity of the entire cultivator.

As described above, the lifting handle is provided directly on the power transmission portion, and the lifting handle is not attached to, for example, a guard for preventing mud from the rotor portion. Therefore, the lifting handle does not become an obstacle when storing and storing the cultivator, and it is not necessary to secure a wide storage space.

Further, since the lifting handle is provided substantially at the position of the center of gravity of the entire cultivator, when the cultivator is raised, the balance can be maintained on both sides of the lifting handle. Therefore, when the tilling machine is lifted with the lifting handle, the stability of the cultivator can be ensured.

Furthermore, one lifting handle is provided almost only at the position of the center of gravity of the entire cultivator, and no other lifting handle is provided. Therefore, the number of parts can be reduced and the configuration can be simplified.

The cultivator with working weights and lifting handle according to claim 1, the handle for lifting, provided in a power transmission unit, and a substantially center of gravity of the entire tiller, the soil by the rotor unit Plowing tillage
At the time of operation, it is provided almost vertically above the rotor unit. And a penetration space for penetrating the lifting handle is formed in the working weight,
The working weight is attached by passing the lifting handle through this through space.

That is, there is no need to provide a dedicated member for attaching the working weight, for example, a screw shaft. In addition, it is not necessary to separately provide a handle portion or the like for attaching the work weight. Therefore, the number of parts can be reduced and the configuration can be simplified. Furthermore, since the working weight can be attached only by passing the lifting handle through the through space, the attaching work is easy. In addition, the working weight attached to the lifting handle is provided substantially vertically above the rotor part, so that a sufficient weight can be added to the rotor part. Therefore, the rotor portion can be reliably pressed against the soil during the tilling operation.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an embodiment of a cultivator having a working weight and a lifting handle according to the present invention.

FIG. 2 is a front view of the cultivator shown in FIG.

3A and 3B are diagrams showing details of a mounting state of the lifting handle shown in FIG. 1, wherein A is a side view and B is a front view.

FIG. 4 is a view showing details of the work weight shown in FIG. 1, wherein A is a side view and B is a plan view of the state of A as viewed from above.

FIG. 5 is a view showing a state in which the tiller shown in FIG. 1 is lifted by holding a lifting handle.

FIG. 6 is an overall side view showing a conventional tiller.

FIG. 7 is a front view of the conventional tiller shown in FIG.

FIG. 8 is an overall side view showing another conventional tiller.

[Explanation of symbols]

 2 Lifting handle 4 Working weight 4K Mounting hole 5 Pressing and fixing screw 6 Drive unit 7 Support Arm 8 ... Gear case 10 ... Rotor

Claims (1)

(57) [Claims] 1. A drive unit, a power transmission unit provided in the drive unit, a rotor unit supported by the power transmission unit, the rotor unit receiving the power of the drive unit, rotating and receiving the power of the drive unit, and raising the soil. In a cultivator having a working weight provided with a lifting handle provided for lifting a cultivator, a working weight for pressing a rotor portion against soil during tilling work, and a lifting handle, the lifting handle is , Which is provided in the power transmission unit and is located at substantially the center of gravity of the whole cultivator,
The work weight is provided with a penetrating space through which the lifting handle penetrates, and the work weight is penetrated by the lifting handle. Cultivator having a work weight and a lifting handle, to which a work weight is attached.