JP2006006148A - Tending implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tending implement easy to handle and enabling work to be made stably when an operator tills a paddy/field by manipulating it while walking. <P>SOLUTION: The tending implement 100 includes an angle sensor 61 as an example of angle detective means for detecting the posture angle of such tending implements and a controller 62 connected to the angle sensor 61 and functioning to actuate or halt the tending implement 100 based on data detected by the angle sensor 61. This tending implement 100 solves such a problem that some conventional tending implements have a switch for actuating or halting such an implement set on a user grip; therefore the switch turns 'on' at the same time of user's holding the grip; however, in such a circumstance that the condition of a field/paddy field is so poor that a work cannot be made stably(the implement itself is excessively inclined forward or backward), the implement needs to be temporarily halted; in such a case, the user needs to hold the grip because the user must support the implement, resulting in impossibility to halt the action of the implement. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention mainly relates to a management machine for plowing a field, and in particular, a management machine that is operated by an operator while walking to plow the field.

Conventionally, the technique regarding the management machine as shown in the following patent document 1 is publicly known.
Specifically, this Patent Document 1 shows a walking type management machine driven by a battery.
Such a management machine is operated by charging a battery from a commercial power source that is generally widespread, and supplying electric energy to the motor from the charged battery.
Therefore, such a management machine is easy to use and has a small turn compared to a management machine using an engine that uses fuel such as gasoline or light oil as a drive source.
JP 2001-169602 A

By the way, the conventional management machine as described above is convenient in that it can be driven by a battery, but it is not always easy to use in a situation where an operator (hereinafter simply referred to as “user”) is working. There was no aspect.
For example, in some conventional management machines, a switch for operating or stopping the management machine is provided on a grip (grip) gripped by a user.
This switch is turned on at the same time as the user grips the grip portion, for example.
For this reason, there is a case where it is difficult to use the management machine because the user starts the operation only by holding the gripping part so as to support the user without intention to operate the management machine.
In addition, for example, in a situation where the field is in a bad condition and the work cannot be performed stably (a situation where the management machine itself is tilted too far forward or backward), it is desired to temporarily stop the operation of the management machine There is.
In such a case, since the user is forced to support the management machine, it is necessary to grip the gripping part, and thus the operation of the conventional management machine cannot be stopped.
For this reason, the conventional management machine may not be able to properly perform the field cultivation work.
Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a management machine that is easy to use and can perform work stably.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  In claim 1, in the management machine for plowing the field, the angle detection means for detecting the attitude angle of the management machine, and the management machine based on the detected angle detected by the angle detection means And a control means for operating or stopping.

  According to a second aspect of the present invention, the switch for operating or stopping the management machine has a trigger shape in which the periphery of the operation unit is guarded, and has a structure that is biased toward the side to be constantly stopped. .

  According to a third aspect of the present invention, the switch for operating or stopping the management machine is a touch sensor provided in a grip portion of the management machine.

  According to a fourth aspect of the present invention, a hand hook is provided on the upper portion of the tillage portion that performs tilling in contact with the field.

  According to a fifth aspect of the present invention, the battery that is the drive source of the management machine is provided at the approximate center in the vertical and horizontal directions of the management machine.

  As effects of the present invention, the following effects can be obtained.

According to the configuration of claim 1, when the attitude angle of the management machine becomes difficult to operate by the user, the operation of the management machine automatically stops, so that the user cannot easily operate the management machine. It is possible to avoid handling, and it is possible to allow the user to appropriately use the management machine.
Even if the hand switch is in the on state, if the attitude angle of the management machine is too tilted, the operation of the management machine can be automatically stopped.
Therefore, for example, when the attitude of the management machine changes unexpectedly, even if the user holds the gripping part in an attempt to prevent the change, the operation may be forcibly stopped if the attitude angle is excessively inclined. It becomes possible, and it becomes possible to operate a management machine stably.

According to the configuration of claim 2, the manager operates only when the trigger switch is pulled.
Further, by providing the guard member so as to guard the periphery of the operation part (lever) of the trigger switch, it is possible to prevent the trigger switch from being inadvertently pulled.

According to the configuration of claim 3, the management machine can be operated only when the user has an intention to operate the management machine such as a situation where the user grips the gripping part, while the gripping part is not gripped. In this case, the management machine can be stopped.
That is, the user can easily operate / stop the management machine, and the management machine can be automatically stopped when the user's hand is away from the grip.

  According to the configuration of claim 4, it is possible to easily lift the tillage part where the weight of the management machine is concentrated, so that the management machine can be easily carried finally.

  According to the configuration of the fifth aspect, the position of the battery that occupies a large proportion of the total weight in the configuration of the management device can be arranged on the management device with a good balance.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings for understanding of the present invention. The following best mode for carrying out the present invention is an example embodying the present invention, and is not intended to limit the technical scope of the present invention.
1 is a schematic configuration diagram (side view) of the management machine 100 of the present invention, FIG. 2 is a schematic configuration diagram (front view) of the management machine 100 of the present invention, and FIG. 3 is an example of a usage state of the management machine 100 of the present invention. Figure showing the
FIG. 4 is an explanatory diagram of posture angles at which the management device 100 of the present invention can operate, FIG. 5 is a schematic configuration diagram (side view) of the management device 100 of the present invention, and FIG. 6 is a schematic configuration diagram of the management device 100 of the present invention. FIG.

<Outline of management machine 100>
First, a schematic configuration of the management machine 100 according to the best mode for carrying out the present invention will be described with reference to FIGS. 1 and 2.
The management machine 100 includes a support unit 1 and a tilling unit 2 disposed at one end of the support unit 1.
The tillage unit 2 has a built-in rotation drive unit for driving the tillage unit 2 to rotate.
Further, in such a configuration, the portion to be cultivated in direct contact with the field is the cultivating section 2.

<Supporting part 1, tilling part 2>
As shown in FIGS. 1 and 2, the support portion 1 includes a support member 4 that supports the tillage portion 2, a support portion intermediate body 5 that extends upward from the support member 4, and an upper end portion of the support portion intermediate body 5. And a grip 6 extending rearward.
Since it is comprised in this way, the support part 1 has a function as a handle | steering-wheel.
The support member 4 is formed in a gate shape when viewed from the front, and supports the rotation support shaft 40 of the tillage unit 2 at both ends corresponding to the gate-shaped legs.
The support member 4 is formed of a hollow pipe-shaped member.
The support intermediate 5 is fixed to the support 9 fixed above the support member 4, the intermediate body 10 standing on the support 9, and the intermediate body 10 below the intermediate body 10 via the attachment 11. And a resistance rod 12 provided.
The support base 9 supports a battery case 13 and an intermediate body 10 for attaching a battery (not shown).
The intermediate body 10 includes a hollow pipe-like lower pipe portion 14 extending in the vertical direction, an upper pipe portion 15 slidably fitted into a hollow portion of the lower pipe portion 14, the lower pipe portion 14 and the upper pipe portion 14 An adjustment body 16 for adjusting the positional relationship with the pipe portion 15 is provided.
The adjusting body 16 is provided on the outer periphery of the upper end portion of the lower pipe portion 14, and the diameter of the adjusting body 16 itself sheathed on the lower pipe portion 14 is changed by turning the operation portion 20. Thus, the diameter of the upper end portion of the lower pipe portion 14 can be changed.
That is, by rotating the operation portion 20 to reduce the diameter of the upper end portion of the lower pipe portion 14, the lower pipe portion 14 tightens and fixes the upper pipe portion 15, thereby setting the mutual positional relationship. It is possible.

<Switches, tilling claws, etc.>
The battery case 13 is provided with a main switch 32, and the grip portion 6 is provided with a hand switch 35.
That is, the battery case 13 has a socket function for electrically connecting the battery to be installed and the management device 100 of the present invention in terms of hardware, and a function for opening and closing the battery power source by operating the main switch 32. It can be said that it is a thing.
The main switch 32 and the hand switch 35 are connected to a controller 62, which is an example of a control means described later, and operate / stop the management machine 100.
Specifically, only when the main switch 32 provided in the battery case 13 is in the on state (ON state), the operation start operation of the management machine 100 (that is, the rotation drive unit 3 in the tillage unit 2) by the hand switch 35 is performed. Or stop operation is enabled.
Since the power is supplied with the main switch 32 in the ON state and the grip portion 6 is gripped by the user, the operation switch 100 can be operated / stopped by the hand switch 35. It becomes possible to do.
Further, a male screw portion is formed at the outer end portion of the rotation support shaft 40. The male screw portion is inserted into the end portion of the support member 4, and a nut 56 that is screwed into the male screw portion is a washer or the like. Screwed through.
By configuring in this way, the rotation support shaft 40 is rotatably provided on the support member 4.
Furthermore, since the rotation support shaft 40 is also a rotation shaft of the cylindrical tillage shaft 41, the tillage shaft 41 is also rotatable with respect to the support member 4.
A plurality of tilling claws 46 are provided on the outer peripheral surface of the tilling shaft 41 for tilling by directly contacting the field.

<Usage example>
As a specific example of the usage state of the management device 100 schematically configured as described above, for example, as shown in FIG.
A dotted line M indicates a specific example of a user who operates the management device 100.
Unlike the state (upright state) shown in FIG. 1, the management machine 100 is often used while being slightly inclined to the user side as shown in FIG. 3.
That is, the support portion intermediate body 5 is used in a state where it is slightly inclined toward the user side.
For this reason, the gripping portion 6 is provided so as to be slightly bent from the direction in which the upper pipe portion 15 extends to the user side (rear side).

<Attitude angle>
Furthermore, the management device 100 configured as described above may be provided with an angle sensor 61 (see FIG. 1) which is an example of an angle detection unit for detecting the attitude angle of the management device 100.
Here, the attitude angle is an angle formed by, for example, the support part intermediate body 5 of the management machine 100 and a substantially horizontal plane such as Tabata.
Specifically, this angle sensor 61 may detect an angle formed by the weight suspended in the vertical direction and the support intermediate body 5 as data.
Furthermore, the controller 62 (see FIG. 1) is connected to the angle sensor 61 and is an example of a control means for operating or stopping the management machine 100 based on the data (detection angle) detected by the angle sensor 61. ).
In this case, specifically, the controller 62 first calculates the attitude angle of the support portion intermediate body 5 based on the data detected by the angle sensor 61.
Subsequently, the controller 62 determines whether or not the posture angle is within a predetermined angle range determined in advance by the controller 62.
The range of the predetermined angle is, for example, a range as shown in FIG.
For example, it is assumed that the attitude angle of the management device 100 during normal use is in a state indicated by a solid line in FIG. 4 (that is, a state as shown in FIG. 3).
Further, in FIG. 4, a state of tilting in a direction away from the user (front side) from the state of the management machine 100 at the posture angle indicated by the solid line is shown as the management machine 100a, and on the other hand, in a direction approaching the user (rear side). A tilted state is shown as a management machine 100b.
By the way, in the above-mentioned case, if the management device 100 is tilted too far forward than the state of the management device 100a, the user is not easily operated. It can be said that it is not easy to operate.
Thus, for example, specific examples of the predetermined angle range include an angle range 200 from the state of the management device 100 to the state of the management device 100a, and an angle range from the state of the management device 100 to the state of the management device 100b. 210.
At this time, for example, the state of the management machine 100a may be about 80 degrees from the horizontal plane, and the state of the management machine 100b may be about 20 degrees from the horizontal plane.
In this case, the controller 62 determines whether or not the attitude angle of the management device 100 belongs to the angle range 200 or the angle range 210.
When it is determined by the above determination that the attitude angle of the management machine 100 belongs to the angle range 200 or the angle range 210, the controller 62 operates the management machine 100 (ie, by the tillage unit 2). Stop tilling).
With the configuration as described above, when the attitude angle of the management device 100 becomes difficult to be operated by the user (that is, when it is not within the angle range 200 or 210), the operation of the management device 100 is performed. Automatically stops, it is possible to avoid the user from handling the management device 100 in a difficult state, and to allow the user to use the management device 100 appropriately.
Moreover, in the conventional management machine, since the hand switch is turned on at the same time when the user is gripping and operating the gripping part of the management machine, the management machine is in an operating state as long as it is in the on state.
However, regarding the management machine 100 of the present invention, even if the hand switch 35 is in the on state, if the attitude angle of the management machine 100 is not within the angle range 200/210, the management machine 100 is automatically operated. It can be stopped.
Therefore, even when the posture of the management device 100 changes unexpectedly, even if the user holds the grip 6 in order to prevent the change, the management device 100 of the present invention has a posture angle within the above-mentioned angle range 200/210. If not, the operation can be forcibly stopped, and the management device 100 can be stably operated.

<Trigger switch>
Next, a switch for operating or stopping the management machine 100 will be described.
In the above description, the case where the hand switch 35 is provided on the lower surface of the grip portion 6 has been described. However, an example of a switch different from the hand switch 35 will be described below.
Of course, the trigger switch 35a and the touch sensor 35b described below are also connected to the controller 62 in the same manner as the hand switch 35, and have a function of operating or stopping the management machine 100.
First, for example, as shown in FIG. 5, a case where the switch for operating or stopping the management machine 100 is a trigger switch 35 a provided in the vicinity of the connection portion between the upper pipe portion 15 and the grip portion 6 will be described.
That is, the trigger switch 35a is a trigger-like (trigger-shaped) lever such as a handgun.
In this case, the trigger switch 35 a may be guarded by the guard member 36 around the operation portion (lever).
Furthermore, basically, when no force is applied to the trigger switch 35a, the trigger switch 35a is urged toward the tillage unit 2 side (the lower side in FIG. 5), and in this case, the management device 100 is stopped. It is configured to let you.
On the other hand, when the user holds the grip 6 and pulls the trigger switch 35a toward the grip 6 (upper side in FIG. 5) with an index finger or the like, the management device 100 is operated.
Since it is configured in this way, the management device 100 operates only when the trigger switch 35a is pulled by the user.
The trigger switch 35 a has a shape protruding from the upper pipe portion 15.
Therefore, as described above, by providing the guard member 36 so as to guard the periphery of the trigger switch 35a, it is possible to prevent the trigger switch 35a from being inadvertently pulled.

<Touch sensor>
As another example of a switch for operating or stopping the management device 100, for example, a touch sensor 35b that detects that the user is in contact may be used.
For example, as shown in FIG. 5, the touch sensor 35 b may be provided on the upper surface side of the grip portion 6.
In this configuration, when the grip portion 6 is gripped by the user, the touch sensor 35b comes into contact with the user at the same time, so the touch sensor 35b detects the user.
In other words, the management device 100 can be operated only when the user has an intention to operate the management device 100 such as a situation where the user grips the grip portion 6, while the grip portion 6 is not gripped. In this case, the management machine 100 can be stopped.
Therefore, the user can easily operate and stop the management device 100, and can automatically stop the management device 100 when the user's hand is away from the gripping unit 6. It becomes.
In addition, even when the trigger switch 35a and the touch sensor 35b are in the on state (pulled or touched), as described above, when the attitude angle of the management device 100 is not within the angle range 200/210, The operation can be forcibly stopped, and the same effect as in the case of the hand switch 35 can be obtained.

<Hand hook>
Next, as shown in FIG. 6, a hand hook 70 may be provided on the upper portion of the cultivating section 2, which is a part where the field is cultivated in contact with the field.
6A is a side view showing a schematic configuration when a hand hook 70 is provided in the management machine 100, and FIG. 6B shows the vicinity of the tillage portion 2 when FIG. 6A is viewed from the front. FIG.
As with the support member 4, the hand hook 70 may be formed in a portal shape when viewed from the front.
Moreover, both end portions of the hand hook 70 corresponding to the gate-shaped leg may be formed as engaging portions 70b that fit into the nut 56 (see FIG. 6B).
The hand hook 70 can be provided on the tillage portion 2 by the engaging portion 70b.
Moreover, you may comprise so that the upper part 70a of this hand hook 70 may become thin unlike the location connected with the leg of both ends.
With this configuration, the user can easily grasp the hand hook 70 and lift the management device 100.
Further, as shown in FIG. 6, both ends of the hand hook 70 are hooked on the nut 56 so that the upper portion 70 a of the hand hook 70 is positioned above the rotation support shaft 40 of the tillage portion 2. May be.
With such a configuration, it is possible to easily lift the tillage unit 2 where the weight of the management machine 100 is concentrated, and it is finally possible to carry the management machine 100 easily.

<Battery position>
The battery that is the drive source of the management device 100 of the present invention is mounted on the battery case 13 as already described above.
In this case, as shown in FIG. 2, the battery case 13 is provided approximately at the center of the management machine 100 in the vertical and horizontal directions.
Therefore, the battery attached to the battery case 13 is also provided at the approximate center of the management device 100.
As a result, the position of the battery that occupies a large proportion of the total weight due to the configuration of the management machine 100 can be arranged on the management machine 100 with a good balance.

The schematic block diagram (side view) of the management machine 100 of this invention. The schematic block diagram (front view) of the management machine 100 of this invention. The figure which shows an example of the use condition of the management machine 100 of this invention. Explanatory drawing of the attitude | position angle which the management machine 100 of this invention can operate | move. The schematic block diagram (side view) of the management machine 100 of this invention. The schematic block diagram (front view, side view) of the management machine 100 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support part 2 Tillage part 3 Rotation drive part 4 Support member 5 Support part intermediate body 6 Grasp part 9 Support stand 10 Intermediate body 13 Battery case 35 Hand switch 35a Trigger switch 35b Touch sensor 61 Angle sensor 62 Controller 100 Management machine

Claims (5)

In the management machine for tilling the fields,
Angle detection means for detecting the attitude angle of the management machine;
Control means for operating or stopping the management machine based on the detection angle detected by the angle detection means;
The management machine characterized by comprising.   The management machine according to claim 1, wherein the switch for operating or stopping the management machine has a trigger shape in which the periphery of the operation unit is guarded, and has a structure that is biased to a side to be constantly stopped.   The management machine according to claim 1, wherein the switch for operating or stopping the management machine is a touch sensor provided in a grip portion of the management machine.   The management machine according to any one of claims 1 to 3, wherein a hand hook is provided on an upper part of a tilling portion that performs tilling in contact with a field. The management machine according to any one of claims 1 to 4, wherein a battery that is a drive source of the management machine is provided at a substantially center in the vertical and horizontal directions of the management machine.

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