JP2009034000A - Electric field cultivator - Google Patents

Abstract

【Task】
It is an object to make an electric cultivator with good operability.
[Solution]
The drive motor (5) that drives the tilling claw (1), the battery (7) that is the power source of the drive motor (5), the left and right operation handle (H) that the operator holds, and the main power supply A main switch (32) to be operated, and the first grip (23) provided at the rear end of one first handle (21) of the left and right operation handle (H) is turned on / off of the drive motor (5). And an operation lever (27) for operating the operation switch (26). The drive motor (5) is operated when the operator holds the operation lever (27) and the first grip (23). In the vicinity of the second grip (24) provided at the rear end of the other second handle (22) of the left and right operation handle (H), the rotational speed adjustment is performed to adjust the rotational speed of the drive motor (5). Switch (30) and drive motor 5) provided with forward and reverse switch for switching forward and reverse (31).
[Selection] Figure 1

Description

  The present invention relates to an electric field cultivator.

Patent Document 1 describes an electric field cultivator having a configuration in which a main switch is provided on the grip of one operation handle and the rotation of a drive motor is turned on and off and the number of rotations of the other operation handle is variable.
JP 2006-60943 A

  In Patent Document 1, since the adjustment of the rotation speed of the drive motor and the turning on / off of the rotation are adjusted by the amount of gripping the lever, it is difficult to adjust the amount of gripping during the tillage work, and there is a drawback that erroneous operation is easy. Moreover, since the main switch is provided on the lever, it leads to an erroneous operation.

  An object of the present invention is to provide an electric cultivator with good operability.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention described in claim 1 includes a tilling claw (1) for tilling a field, a drive motor (5) for driving the tilling claw (1), and a battery (7) as a power source for the driving motor (5). A left and right operation handle (H) held by the operator and a main switch (32) for turning on and off the main power supply, and a rear end of one first handle (21) of the left and right operation handle (H) A work switch (26) for turning on and off the drive motor (5) and an operation lever (27) for operating the work switch (26) are provided on the first grip (23) provided in the section. 5) is configured to be driven when the operator holds the operation lever (27) and the first grip (23), and is provided at the rear end of the other second handle (22) of the left and right operation handle (H). Near the grip (24) is a drive motor ( ) And the rotation speed control switch for adjusting a rotational speed of (30), the electric cultivator, characterized in that a positive reverse switch for switching forward and reverse drive motor (5) (31).

  According to this invention, when the operator turns on the main switch (32) and grasps the first grip (23) and the operation lever (27) with one hand, the tilling claw (1) rotates and the field is plowed. Then, the operator operates the rotation speed adjustment switch (30) and the forward / reverse rotation switch as necessary while holding the second grip (24) with the other hand.

  According to the second aspect of the present invention, the rear ends of the first handle (21) and the second handle (22) are connected by a connecting frame (25), and the operation frame (29) is connected to the connecting frame (25). ), And the rotation speed adjustment switch (30) and the forward / reverse rotation switch (31) are attached to the operation panel (29) on the second grip (24) side from the left and right center position (M). The electric field cultivator according to item 1.

  According to a third aspect of the present invention, on the operation panel (29), a rotation speed adjustment switch (30), a forward / reverse rotation switch (31), and a main switch (32) are arranged in order from the side closer to the second grip (24). The electric field cultivator according to claim 2.

  According to the invention of claim 1, when the operator releases the operation lever (27), the tilling claw (1) automatically stops, so that a safe tiller can be obtained with a simple configuration. In addition, with the hand holding the second grip, the rotation speed adjustment switch (30) and forward / reverse rotation switch (31) in the vicinity of the second grip (24) can be adjusted, so that the adjustment operation can be performed during tillage. Easy to do.

  According to the second aspect of the present invention, since the connecting frame 25 is provided at the rear end of the left and right operation lever H, the strength of the left and right operation lever H is increased, and the operation panel 29 is provided at a close distance of the operator. Therefore, the operability is improved.

  According to the third aspect of the present invention, a smooth tillage operation can be performed by providing the rotation speed adjustment switch (30) having a high adjustment frequency at a place close to the second grip (24) during the tillage operation. Moreover, by providing the main switch (32) in a place away from the second grip (24), it is possible to prevent the main switch (32) from being turned off by mistake during a tilling operation.

The electric field cultivator of the present embodiment will be described below.
A plurality of cultivating claws 1 that rotate on a rotation trajectory F and cultivate the field are provided on a cultivating shaft 2 provided at a horizontal axis in the lateral direction of the craft body at a set interval, and a mission case 3 is provided at the left and right center of the cultivating shaft 2. A transmission shaft 4 having a vertical axis is provided inside the transmission case 3, and one end of the transmission shaft 4 is connected to the drive shaft 5a of the drive motor 5 and the tillage shaft 2 to drive the power of the drive motor 5 to the tillage shaft. 2 is transmitted.

  The drive motor 5 is configured to be placed on a cover 6 that covers the top of the tillage claw 2, a battery 7 is placed adjacent to the rear side of the drive motor 5, and a controller 8 is provided above the battery 7. .

  A main frame 10 is formed from the rear of the mission case 3 so that the center position M of the left and right sides of the fuselage is raised upward. A left and right bifurcated left and right operation handle H is formed from the rear end of the main frame 10 toward the rear of the fuselage. is doing.

  Further, a carrying frame 11 is extended toward the front side of the machine body in the middle of the main frame 10, and a carrying grip 12 is provided at the front end of the carrying frame 11, and the carrying grip 12 is a drive motor. 5 and the controller 8 are positioned above the controller 8 so that when the operator holds the carrying grip 12 and lifts the machine body, the weight balance is good and the carrying is easy.

An auxiliary frame 13 is provided from the start end side of the main frame 10 toward the rear of the machine body, and a pair of left and right support wheels 14 for supporting the machine body and a stand 15 are attached to the auxiliary frame 13.
The drive motor 5 is provided on the front side of the tilling shaft 2 in a side view, and the battery 7 and the controller 8 are provided on the rear side of the tilling shaft 2 so that the front / rear balance of the body at the time of tilling work is good. It is the structure which can prevent the lifting of.

  Further, by arranging the controller 7 with the battery 7 on the bottom, the heavy battery 7 makes the entire aircraft have a low center of gravity, and the handling of the aircraft is improved. As another embodiment, if the battery 7 is provided on the upper side and the controller 8 is provided on the lower side, there is an advantage that the battery 7 that is frequently attached / detached can be easily attached / detached and maintainability is improved.

Next, the configuration of the operation handle H and the peripheral portion of the operation handle H will be described.
The operation handle H is provided with a first handle 21 and a second handle 22 that branch from the root portion 20 in the left-right direction. When the knob bolt N provided on the side surface of the root portion 20 is loosened, the root portion 20 rotates about the horizontal axis. The position of the left and right operation handle H can be adjusted in the vertical direction.

  A first grip 23 and a second grip 24 are further provided from the rear ends of the first handle 21 and the second handle 22 toward the rear of the aircraft, respectively, and the rear ends of the first handle 21 and the second handle 22 are provided on the left and right sides of the aircraft. It is set as the structure connected with the connection frame 25 extended in a direction.

  The first grip 23 is provided with a limit switch type work switch 26 for turning the drive motor 5 on and off and an operation lever 27 for operating the work switch 26 on and off. When the operator holds the first grip 23 and the operation lever 27, the work switch 26 is turned on, and the drive motor 5 is driven to rotate the tillage claw 1. When the operator releases the operation lever 27, the work switch 26 is turned off, the drive motor 5 is stopped, and the rotation of the tillage claw 1 is stopped.

  An operation panel 29 is attached to the second grip 24 side of the connecting frame 25 from the left and right center position M of the machine body, and the operation panel 29 adjusts the rotation speed of the drive motor 5 from the side closer to the second grip 24 side toward the left and right center side of the machine body. There are provided a volume type driving motor rotation speed adjustment switch 30, a forward / reverse switch 31 for switching forward / reverse of the drive motor 5, a main switch 32 for turning on / off the power, and an indicator 33 for displaying the remaining amount of the battery 7. Further, the operation panel 29 of the drive motor rotation speed adjustment switch 30 is bent to provide an inclined surface 29a, and the drive motor rotation speed adjustment switch 30 is inclined to the second grip 24 side.

  Although the harnesses for connecting the work switch 26, the drive motor rotation speed adjustment switch 30, the forward / reverse rotation switch 31, the main switch 32, and the controller 8 are provided along the operation handle H, illustration is omitted.

Hereinafter, it describes about the effect of the electric field cultivator of this Embodiment.
When the operator turns on the main switch 32 and then grips the operation lever 27 together with the first grip 23, the work switch 26 is turned on, the drive motor 5 starts to drive, and the tilling claw 1 rotates along the rotation locus F. The farm is cultivated. When the operation lever 27 is released, the work switch is turned OFF, the drive motor 5 is stopped, and the tilling claw 1 is also stopped.

  When adjusting the rotation speed of the tilling nail 1 during the tilling operation, the first grip 23 and the operation lever 27 are held with one hand and the second grip 24 is supported with the other hand with a finger (for example, index finger). The dial type rotation speed adjustment switch 30 is turned to adjust the rotation speed to a desired value. That is, with respect to the rotation adjustment of the tilling claw 1 that needs to be adjusted while working, workability is improved by facilitating adjustment with a finger (for example, index finger) while supporting the second grip 24.

  When changing the forward / reverse rotation, the operation lever 27 is once released to stop the rotation of the tilling claw 1 and the rotation of the tilling claw is resumed after switching the forward / reverse rotation switch 31. In other words, by providing the position of the forward / reverse switch 31 closer to the second grip 24 than the center of the left and right sides of the body, the forward / reverse switch 31 can be easily operated, while supporting the second grip 24 with one hand. By providing at a position where it is difficult to operate with a finger, it is possible to prevent the finger from performing a forward / reverse switching operation while the tilling claw 1 is being driven.

  The main switch 32 is provided at a position away from the second grip 24 to prevent the main switch 32 from being turned off by mistake during a tilling operation. The main switch 32 may be provided not at the operation panel 29 but at the position b of the root portion 20.

  Furthermore, by providing the indicator 33 on the surface of the operation panel 29 on the side close to the left-right center position M, the operator can easily see the indicator and can easily grasp the remaining amount of the battery 7.

  Further, since the connecting frame 25 is provided at the rear end portion of the left and right operation lever H, the strength of the left and right operation lever H is increased and the operability is improved because the operation panel 29 can be provided at a close distance of the operator. .

  FIG. 5 shows a configuration when the electric power tiller of the present embodiment is replaced with an engine type, in which a clutch drum 40 is attached to the transmission shaft 4 and a centrifugal clutch type engine 41 is attached. With this configuration, the drive motor 5 and the engine 41 can be replaced, and the airframe can be shared.

Plan view Side view The top view which shows the principal part of invention Block Diagram Side view showing another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tillage nail 5 Drive motor 7 Battery 21 1st handle 22 2nd handle 23 1st grip 24 2nd grip 25 Connection frame 26 Operation switch 27 Operation lever 29 Operation panel 30 Revolution adjustment switch 31 Forward / reverse switch 32 Main switch H Left and right Operation handle M Left and right center position

Claims (3)

  A tilling claw (1) for cultivating a field, a drive motor (5) for driving the tilling claw (1), a battery (7) as a power source of the drive motor (5), and a left / right operation handle held by an operator (H) and a main switch (32) for turning on and off the main power supply, and a first grip (23) provided at the rear end of one first handle (21) of the left and right operation handle (H). Is provided with a work switch (26) for turning on / off the drive motor (5) and an operation lever (27) for operating the work switch (26). ) And the first grip (23) are driven, and a drive motor (near the second grip (24) provided at the rear end of the other second handle (22) of the left and right operation handle (H)). 5) Adjusting the rotation speed to adjust the rotation speed A switch (30), an electric tiller, characterized in that a positive reverse switch for switching forward and reverse drive motor (5) (31).   The rear ends of the first handle (21) and the second handle (22) are connected by a connecting frame (25), and an operating panel (29) is provided on the connecting frame (25), and a rotation speed adjusting switch (30 2) and a forward / reverse switch (31) are attached to the operation panel (29) on the second grip (24) side from the center position (M) of the machine body.   The rotation number adjustment switch (30), the forward / reverse rotation switch (31), and the main switch (32) are arranged on the operation panel (29) in order from the side closer to the second grip (24). Electric field cultivator.

Images