JPS635Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lifting timing warning device for a tillage machine.

[Prior art]

When tilling a field with a tillage machine such as a rotary tiller, conventionally, once one stroke of plowing is completed, the tillage machine is raised from the plowing position and the machine is moved from the end of tillage of the already tilled land to the next stage. After turning to the plowing start end of the plowing area, the plowing implement is lowered again to align with the plowing end of the adjacent plowing mark. The lifting and lowering operations of such plowing machines are all done manually by the operator, so it is necessary to align the machine with the adjacent plowing tracks, raise and lower the tillage machine in the right place, and even turn the machine. This required complex eye movements and required considerable skill. In addition, in order to adjust to the adjacent plowed land, it is necessary to adjust the raising and lowering timing of the tillage work machine according to the vehicle speed of the traveling machine, and it has been extremely difficult to judge the timing.

Therefore, as shown in FIG. 1, A, B,
The tillage work is carried out in the order of C, ..., F, but due to the above-mentioned reasons, the tillage work is carried out on the cultivated land A, B, C, ...,
If the border between F and headland G becomes irregular and uneven, it will become more troublesome to till the headland where the border is uneven so that no uncultivated land remains, leading to inefficiency in the tilling work. There was a problem.

[Purpose of invention]

This invention was devised in order to solve the problem in view of the actual situation of the conventional equipment mentioned above, and allows the operator to appropriately judge the timing to raise and lower the plowing machine according to the vehicle speed of the traveling machine. The purpose of the present invention is to provide a lifting/lowering timing warning device for a tilling machine that can prevent unevenness from occurring at the boundary between cultivated land and headland and streamline headland plowing work. be.

[Purpose of invention]

The raising/lowering timing warning device for a tilling work machine according to the present invention achieves the above object. A discrimination device is provided to discriminate between cultivated land and cultivated land, and this discrimination device is connected to a warning alarm that emits a warning bell and then a main bell via an output setting device that is linked to a speed detector. A main bell for notifying the ascent and descent of the tilling work machine is set to notify after a predetermined time according to the vehicle speed of the machine, and a warning bell in front of the main bell is designed to give different notifications in conjunction with the vehicle speed of the moving machine. It is composed of

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings as an embodiment thereof.

Figures 3 and 4 show plan views of the tractor. Figure 3 shows the case where the tiller is lowered in the next stroke after completing the previous stroke, and Figure 4 shows the case where the tiller is lowered in the next stroke after finishing the previous stroke, and Figure 4 shows the case where the tiller is lowered in the next stroke after finishing the previous stroke. This shows the case where the work equipment is raised.

In FIGS. 3 and 4, 1 is a tractor which is a traveling body, 2 is a rotary tilling unit constituting a tilling machine which is attached to the rear of the tractor 1 so as to be able to rise and fall, and 3 is a driver's seat. This driver's seat 3
A control lever 4 that constitutes a lifting device for the rotary tiller 2 is provided on the side of the rotary tiller 2. By operating this control lever 4, the rotary tiller 2 can be lowered to the tilling position or moved to the non-tillage position. It is now possible to raise the height. A discrimination device 5 for discriminating between uncultivated land and cultivated land in the adjacent plowing trace 30 is provided at the front of the tractor 1, which is a traveling body. 31 is currently cultivated land.

The discrimination device 5 discriminates between uncultivated land and cultivated land by contact or non-contact, and many known devices that have already been proposed can be adopted.
For example, as a method for non-contact discrimination, a method can be applied in which a predetermined amount of infrared rays is emitted onto the ground, and the amount of reflected infrared rays is detected to discriminate between uncultivated land and cultivated land. This discrimination device 5 is configured to open the contact when the land is uncultivated, and close the contact when the land is cultivated.

Further, an alarm alarm 6 consisting of an audio device such as a buzzer or a bell is provided on the tractor 1 in front of the driver's seat 3, and this alarm alarm 6 is connected to the discrimination device 5 as will be described in detail later. It is in.

FIG. 5 is an electrical circuit diagram for operating the device of the present invention. In FIG. 5, 6 is the above-mentioned alarm alarm, and two drivers 7A and 7B are connected to this alarm alarm 6 via contacts 8A and 8B. The drivers 7A and 7B are provided with output setting devices 9A and 9B, respectively. The outputs of the output setting devices 9A and 9B are set in accordance with the speed via a speed detector or the like, as will be described in detail later.

A contact 5A operated by the discrimination device 5 is connected in series to the drivers 7A and 7B. Among these, the driver 7A outputs an output when the contact 5A is closed, that is, when the discrimination device 5 detects cultivated land and closes the contact 5A, and drives the alarm alarm 6. on the other hand,
The driver 7B outputs an output to drive the alarm alarm 6 when the contact 5A is open, that is, when the discrimination device 5 detects cultivated land and opens the contact 5A.

FIG. 6 is a diagram showing the output relationship between the above-mentioned contact 5A and the driver 7A. FIG. 6A shows the output of the contact 5A, and FIG. 6B shows the output of the driver 7A. When contact 5A closes as shown in the figure,
The driver 7A outputs an output at time _T1 , stops at time _T2 , and emits a warning bell that is repeated several times during time T _a . These T ₁ and T ₂ signal lengths are determined by the output setting device 9A, which sets the output according to the tractor speed.
Set by When the preliminary bell at time T _a ends, the main bell is output for a certain period of time T ₃ . This bell notifies the operator that the timing has come to lower the rotary tiller 2.

When the rotary tiller 2 descends just before or during the output of time _T3 , the contact point 8A opens and the alarm alarm 6 stops generating an alarm such as a buzzer.
The contact 8A is always closed while the rotary tiller 2 is being raised.

FIG. 7 is a diagram showing the output relationship between the contact 5A and the driver 7B. FIG. 7A shows the output of the contact 5A, and FIG. 7B shows the output of the driver 7B.
As shown in the figure, when the contact 5A opens, the driver 7B outputs an output at time T ₁ ', pauses at time T ₂ ', and emits a warning bell which is repeated several times during time T _a '. The signal lengths of T ₁ ' and T ₂ ' are set by an output setting device 9B that sets the output according to the speed of the tractor. After the preliminary bell at time T _a ′ ends, the main bell rings for a certain period of time.
Only T ₃ ′ is output. This bell notifies the operator that the timing has come to raise the rotary tiller 2.

When the rotary tiller 2 rises just before or during the output of the time T ₃ ', the contact 8B opens and the alarm alarm 6 stops generating an alarm such as a buzzer.
The contact 8B is always closed while the rotary tiller 2 is being lowered.

After being informed in advance by the pre-bell that the plowing start point at which plowing begins or the plowing end point at which plowing ends, the rotary tiller unit 2 is lowered or raised at a predetermined position for the first time by the main bell. Therefore, as shown in Figure 2, cultivated land A, B,
The boundaries between C, . Since the warning bell gives different notifications depending on the vehicle speed, it is easy to judge the timing of lowering or raising the tillage machine even if the speed of the moving vehicle is high or low. C,
..., the boundary between F and the headland G becomes uneven, and the headland G
This can prevent the plowing work from becoming inefficient.

[Effect of idea]

In short, the lifting timing warning device for a tillage work machine according to the present invention is designed to provide a warning system for a tillage work machine on uncultivated land in an adjacent plowed area to a traveling machine connected to the tillage work machine so as to be able to switch between a lowered position and a raised position via a lifting device. A discriminating device is provided to discriminate between land and cultivated land, and this discriminating device is connected to an alarm alarm that issues a warning bell after a warning bell via an output setting device that is linked to a speed detector. The system is configured to issue a main bell that notifies the ascent and descent of the tilling work machine after a predetermined time according to the vehicle speed of the vehicle, and a warning bell in front of the main bell is configured to issue different notifications in conjunction with the vehicle speed of the moving vehicle. Therefore, the operator knows in advance the timing of lowering or raising the plowing machine using the pre-bell, and can raise and lower the plowing machine at a predetermined position only by using the main bell. Compared to the lifting and lowering operation of a tillage machine, it is easier to synchronize the timing of the lift and fall of the tillage machine, making it possible to align the end of the tilled field with the start of the next plowing process, thereby eliminating unevenness at the boundary between the tilled field and the headland. Plowing work can be easily carried out without causing any damage. Moreover, since the warning bell varies depending on the speed of the traveling vehicle, it is extremely easy to judge the timing of lowering or raising the tillage equipment even if the speed of the moving vehicle varies. It is possible to reliably prevent unevenness from occurring at the boundary between the cultivated land and the headland due to misalignment between the end of plowing and the start of the next stage of plowing. This makes it possible to efficiently plow the headland.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are schematic plan views showing the state of tilling by a tractor, respectively. Figures 3 and 4 are plan views of a tractor equipped with a tilling machine lifting/lowering timing warning device, Figure 5 is an electric circuit diagram for operating the device, Figures 6A, B, and 7 are respectively Figures A and B are relationship diagrams between the output of the contact of the discrimination device and the output of the driver, respectively. DESCRIPTION OF SYMBOLS 1... Tractor (traveling machine body), 2... Rotary tilling section (plowing work machine), 4... Control lever, 5... Discrimination device, 5A... Contact, 6... Warning alarm, 7A, 7B... ...Driver, 9A, 9B
...Output setting device.

Claims (1)

[Scope of utility model registration request] A discriminating device for discriminating between uncultivated land and plowed land in adjacent plowing sites is installed on a traveling machine body to which the tillage work machine is connected so as to be switchable between a lowered position and an elevated position via an elevating device. It is connected to a warning alarm that emits a warning bell followed by a main bell via an output setting device connected to the detector, and notifies the raising and lowering of the tillage machine after a predetermined time period according to the vehicle speed of the traveling machine from the time of discrimination by the discrimination device. A rising/lowering timing warning device for a tillage work machine, which is configured to notify the main bell and to give different notifications using a warning bell in front of the main bell in conjunction with the vehicle speed of a moving traveling machine.