JPS59156207A - Monocycle type walking type cultivator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a rotary tilling device is provided on a tree root having one drive wheel, and is located at the rear of the drive wheel, and the rotary tiller is installed in a tree root provided with one drive wheel, and the rotary tiller is installed in a tree root having one drive wheel, and the rotary tiller is installed in a state where the rotary tiller is located at the rear of the drive wheel. A single-wheel type equipped with a ground-type movable detector that automatically and reversibly disconnects a clutch interposed in the transmission system to the rotary tiller in conjunction with the rise of the rotary tiller above a certain level from the ground due to rocking. Regarding walk-behind tillers.

In the single-wheeled walk-behind tiller with the above configuration, when turning the machine at the edge of a field, the operator lifts the handle and tilts the machine back and forth using the drive wheel contact point as a fulcrum to attach the rotary tiller. As a means to cut off the power transmission to the rotary tiller, which is necessary from the perspective of preventing danger when the machine is raised from the ground, a clutch installed in the transmission system to the rotary tiller is automatically and reversibly activated by detecting the rocking tilt of the machine. In this type of device, for example, as seen in Japanese Patent Laid-Open No. 5G-1236705, the ground type movable detector is equipped with an o-tally. For those equipped with a VC on the tilling device side, a detection device should be attached to each of the various rotary tillage devices that can be used interchangeably with this machine, or a detection device should be installed to increase the versatility of the detection device. It is necessary to either make the rotary tiller removable and replace the rotary tiller with a new one. The disadvantage of VC is that the replacement work is troublesome. In addition, if the ground contact point of the movable ground-contact detector is in a rough and rugged place, the detector described in 11J will erroneously detect and operate even during tilling work, causing the drive rotation of the rotary tiller to stop unexpectedly. The disadvantage is that it is easy to cause trouble.

In view of the above circumstances, the present invention makes it possible to use the above-mentioned detection device as a detection device for various rotary cultivating devices by making a simple improvement such that the mounting of the detection device is 1 u variation. The purpose is to provide a single-wheel walk-behind cultivator that can reliably prevent the occurrence of troubles associated with this.

The characteristic structure of the present invention, which has been made to achieve the above object, is as follows:
In the single-wheeled walk-behind cultivator mentioned above, both of the above-mentioned detections are
1 so as to be located directly behind the drive wheel and within the ground contact width thereof.
(The point VC attached to the drive wheel transmission case side is 0.) The effects of the present invention having such a characteristic configuration are as follows.

In other words, since the detection tool is attached to the drive wheel transmission case side, that is, the tree root side, the detection tool is attached to the various rotary tillers that are used as replacements. There is no waste in installing a detection tool, and it can also be used when replacing a rotary tiller.
There is no need to go through the trouble of changing the attachment. Moreover, since the detection device is located just behind the drive wheels and within the ground contact width thereof, it lands on the ground that has been leveled into a nearly flat platform using the weight of the aircraft as it passes the drive wheels. Since it is a detection device, there is no or almost no erroneous detection caused by unevenness in the field, and there is no worry of erroneous detection caused by the sideways tilt of the machine, so there is no chance of the VC clutch accidentally disengaging during plowing work. We have now been able to reliably prevent problems such as being stolen.

Next, embodiments of the configuration of the present invention will be described based on the drawings.

As shown in Fig. 1, a transmission case (3) which rotatably supports one drive wheel (2) is supported at the rear W- of a front frame (1), and an engine ( 4), the control handle (5) extends rearward and upward to form a tree root (6), and a removable rotary tiller (8) is fully connected to this machine (6). This is a one-wheeled walk-behind cultivator that automatically travels and tills the soil while the operator holds the operating handle (5). In addition, the transmission case +31K is equipped with a ground-type movable detection device (9), and as shown in FIGS. The detection tool (
9) oscillates around the horizontal axis (Pi), and the oscillation is transmitted to the clutch (II) which is interposed in the transmission system to the rotary tiller (8) using an inner wire (10a) and an actor wire (10b). ) The clutch (ll) is configured to automatically and regularly disconnect when the rotary tilling device (8) exceeds a certain level. , the grounding point (9) of the detection tool (9)
a) is the ground contact width (1
), and is configured to prevent the detection tool (9) from making false detections even when the aircraft is lateral (or tilted).

[Brief explanation of the drawing]

The drawings show an embodiment of the single-wheeled walk-behind cultivator according to the present invention, and FIG. 1 is an overall side view, FIG. 2 is a side view of the main part, and FIG. 8 is a rear view of the main part. (2)... Drive wheel, (6)... Machine,
(8)...Rotary tillage device, (11)...
...Clutch, (9)...Detector, (3).
...Transmission booth, (Pi...horizontal axis. Voluntary procedure amendment document, February 1920) - Commissioner of the Japan Patent Office, 1.
Indication of the incident 1981 Special M No. al gai
No. (old) - Wheel-type percussion cultivator 3, relationship with the amended case Special case Applicant address Naniwa Ward, Osaka City, Osaka Prefecture & Kuruma East 1R No. 1 F7 Name (105)
Kubota Iron Works Co., Ltd. 4, Agent 7, Contents of the amendment (1. The name of the invention is corrected to "walking tiller" 0 tel The full text of the specification is corrected as shown in the attached document. & Statement of correction of the full text of the list of attached documents 1 full text correction F!J1 Specification Title of the invention Walking type cultivator 2, scope of claims This machine f61 equipped with a 10-cut JL (3)- is provided with Evil rotary tiller (81
The drive shaft 12) is automatically moved to the rotary tiller (8) in conjunction with the rise of the rotary tiller (8) above a certain level by the back-and-forth rocking of the machine body using the grounding ts as a fulcrum. Detailed Description of the Invention The present invention provides a walking type machine equipped with a movable ground-contact detector (9) that reversibly and reversibly cuts the ground. A rotor tilling device is provided in a position where the rotary tilling device is installed, and a clutch to the rotor tilling device is actuated in conjunction with the rise of the rotary tilling device above a certain level from the ground due to the first backward swing of the machine body using the drive wheel ground contact portion as a fulcrum. This invention relates to a walk-behind cultivator that is equipped with a movable ground-based detection device that automatically and reversibly cuts. When using a walk-behind cultivator with the above configuration, when turning the machine at the edge of a field, etc., an operator lifts the handle and tilts the machine back and forth using the drive wheel contact point as a fulcrum to raise the rotary tiller from the ground. A ground-based movable detector that automatically and reversibly disconnects the clutch to the rotary tiller by detecting the swinging inclination of the rotary tiller as a power transmission cutoff means for the rotary tiller, which is necessary from the perspective of preventing danger. However, with this type of equipment, conventional VCs are equipped with
In most cases, the detection tool and clutch were attached to the rotary tiller, and in rare cases, only the clutch was attached to the main machine. In any case with these conventional rotary tillers, all of the various types of rotary tillers that are used as replacements for this machine are either equipped with at least a detection device, or both, in order to be dedicated, or they must be specially designed. In order to increase the versatility of the detection tool and clutch, it is necessary to either configure them to be detachable and replace them when the rotary tilling device is replaced, and in the above case, it is disadvantageous in terms of cost. In the latter case, there is a drawback that the work of replacing the rotary tiller becomes troublesome. The purpose of the present invention is to eliminate the conventional drawbacks by making minor improvements such as changing the mounting position of the detection device and the clutch, and the characteristic configuration of the walk-behind cultivator according to the present invention made for this purpose includes: In the configuration described above, both the detection tool and the clutch are attached to the main machine side. The effects of the present invention having such features and configurations are as follows. In other words, by attaching both the clutch and the detection device to the machine, they can be used interchangeably with this machine.
There is no waste in attaching the detection tool and clutch to each side of a rotary tiller of various types, and there is no need to take the trouble of replacing the detector and clutch when the rotary tiller is replaced. It is possible to replace the tilling device with this machine without paying any extra money and in a state where it can fulfill the intended danger prevention function. Next, embodiments of the configuration of the present invention will be described based on the drawings. As shown in Fig. 1, a transmission case (3) which rotatably supports one drive wheel (2) is supported at the rear of the front frame, and an engine (4) is mounted at the front. The machine (6) is constructed by installing the machine and extending the control handle (6) rearward and upward, and the detachable rotary tilling device 18) is connected to the machine (6). It consists of a single-wheeled walk-behind tiller that supports the control handle +61k and travels on its own to cultivate the land. In addition, the transmission case (
3) is attached with a ground-type movable detection device 19], and as shown in FIG. 2 and FIG.・Detection tool +93
oscillates around the circumference of the horizontal axis (P), and the oscillation is reflected by the inner wire (IOJI) and the actuator wire (10b). 61J is automatically and reversibly disconnected as the rotary tillage bag rises above the O- chamber. In addition, the ground contact point (9m) of the first self-detection device (9) is located immediately behind the drive wheel (21) and within the ground contact span of the drive wheel (21). 4. Brief explanation of the drawings The drawings show an embodiment of the walking type FR switch according to the present invention, and FIG. 1 is an overall side view, and FIG. 2 is a general side view. Figure 8 is a side view of the main parts, and Figure 8 is a rear view of the main parts. (21...drive shaft, (6)...this machine,
(8)...Rotary tillage device, Ilυ...
...Clutch, (9)...Detector, (3)...
...Transmission case, LP) ...Horizontal shaft center.

Claims (1)

[Claims] ■ A rotary tiller (6) equipped with one drive wheel (2) is provided with a rotary tiller (6) located at the rear of the drive wheel (2).
8) is provided, and the - of the rotary tilling device (8) is provided by the back and forth rocking of the machine body using the ground contact part of the drive wheel (2) as a fulcrum.
A clutch (II) interposed in the transmission system to the rotary tiller (8) in conjunction with the rise above the ground above the room k A single wheel equipped with a ground-type movable detector (9) that automatically and reversibly disconnects In the walk-behind cultivator, the detection tool (9) is attached to the drive wheel transmission case (3) side so as to be located immediately behind the drive wheel (2) and within the ground contact width of the drive wheel (2). Walking type tiller. (2) The single-wheel walk-behind cultivator according to claim 0, wherein the detection tool (9) swings around a horizontal axis ψ).