JP2007104931A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To give priority to a direction displaying function of a direction displaying device of a combine having alarming function for grain storage quantity and direction displaying function in the case of changing the traveling direction of the combine by an operator in a grain quantity alarming state. <P>SOLUTION: A flasher unit 26 is added to a flasher circuit 20 to blink a direction displaying device to monitor the flasher action of the circuit and the burnout of a bulb, and a changeover relay 27 is added to transfer the direction displaying device in working state to a traveling state by the detection of a turn switch 24. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a combine, and more particularly, to means for warning the amount of stored grain in a grain tank using a combine direction indicator.

  In general, in a combine that stores threshed grains while traveling in a field, it is necessary to transfer the grains to the outside of the combine according to the amount of grains in the grain tank, and a truck or the like is used as the transfer means. In this case, as a means for notifying peripheral workers who operate a truck or the like of the amount of grain in the grain tank, a visual means for blinking and displaying the direction indicators of the combine at once is known (Patent Document 1).

  As shown in FIG. 5, the flasher circuit 100 for blinking and displaying the direction indicator that has been conventionally used is cut off in accordance with the load current at the positive electrode of the battery 101 mounted on the fuselage frame. The fuse 102 that can be turned on and a starter switch 103 that is turned ON / OFF by the driver's operation are connected in series and led to the power supply terminal 105C of the controller unit 105 to be used as the controller unit power supply. The controller unit 105 performs predetermined program processing based on various sensor signal inputs by operating the CPU, and outputs appropriate control signals.

  To the signal input terminal of the controller unit 105, an ON / OFF of a grain amount detection sensor 106 disposed in the grain tank 8 and a turn switch 104a provided in a combination switch 104 steered by the driver A signal is input, and the signal output terminal of the controller unit 105 is connected to 1-make type relays 120 and 121 for driving the left-right direction indicator.

  In order to explain the operation of the flasher circuit 100, considering that the turn switch 104a in the combination switch 104 is operated on the right side by the driver, in the controller unit 105, the RH flasher input terminal 105a is grounded when the turn switch 104a is turned on. The right operation signal input ON is detected. When the right operation signal input is ON, the controller unit 105 outputs an ON / OFF pulse signal to the RH flasher output terminal 105b in accordance with a processing program set in advance. The RH flasher terminal 105b is connected to a battery power source branched from the starter switch 103 via a relay coil 120a of an RH relay 120 used in order to drive the right direction indicator valve in series. The relay coil 120a is connected to the RH flasher terminal 105b. Excited. The relay switch 120b is turned on in accordance with the magnetization of the relay coil 120a, battery power is supplied to the RF valve 122 and the RR valve 123, and the valve blinks. When the turn switch 104a is operated to the left side, the flasher circuit 100LH side circuit works, and the left valve blinks with the same circuit configuration as described above.

  On the other hand, when storage of the grain amount in the grain tank 8 proceeds and the grain amount detection sensor 106 is turned ON, the grain amount detection terminal 105d of the controller unit 105 becomes the ground level, and the grain detection procedure of the controller unit 105 is followed. An ON / OFF pulse is output to both the RH and LH flasher terminals 105b. The signal output from the flasher terminal 105b blinks the valve by the same configuration as the operation of the turn switch 104a.

JP 2004-33098 A

  However, in the flasher circuit 100 according to the above-described conventional example, only a single pulse signal is output from the flasher terminal 105b of the controller unit 105. Therefore, when the grain amount detection sensor 106 and the turn switch 104a are simultaneously input ON. However, it cannot be determined which switch signal is ON, and the result is that priority is given to blinking of the left and right valves by the grain amount detection sensor 106. Further, the flasher terminal 105b of the controller unit 105 is connected to the relay coils 120a and 121a, and cannot have a means for detecting valve disconnection.

  In the combine 1, even when the grain tank 8 is filled with the grain and goes to the transfer field while traveling on the road which is a public road, the left and right direction indicator for making the grain amount visible is blinked. However, it will travel on the road, which may interfere with safe driving. Thus, although the direction indicator is a safety part having both the warning function of the grain amount and the function of indicating the direction, the direction indicator cannot be used properly according to the working state.

  In addition, in order to improve the reliability of the direction indicator, when an abnormality occurs in the valve disconnection or the flasher circuit, it is required to immediately issue a warning to alert the operator.

  The present invention has a mode in which the direction indicator can be switched as needed during field work and public road travel, and provides means for warning the lamp bulb disconnection abnormality of the direction indicator.

In order to achieve the object, the present invention according to claim 1 includes a threshing part (5) and a grain tank (8) for storing the grain threshed in the threshing part, and is provided with a traveling device (2). In the combine (1), which is driven and steered while being displayed by the direction indicators (10a, 10b, 11a, 11b) based on the traveling and the steering operation of the traveling device,
Detecting means (S2) for detecting the amount of grain in the grain tank (8);
Based on the detection of a certain amount of grain by the detection means, the grain warning means for operating the direction indicator (10a, 10b, 11a, 11b);
Switching means (27) for switching between the operation of the warning means and the operation of the direction indicators (10a, 10b, 11a, 11b) by the steering operation,
It is in the combine (1) characterized by this.

The present invention according to claim 2 is provided with a flasher unit (26) for blinking and displaying the direction indicator (10a, 10b, 11a, 11b),
Comprising disconnection warning means for operating the direction indicators (10a, 10b, 11a, 11b) via the flasher unit (26) when the direction indicators (10a, 10b, 11a, 11b) are disconnected;
A combine (1) according to claim 1.

  The reference numerals in the parentheses are for reference to the drawings and do not limit the present invention.

  According to the first aspect of the present invention, when the amount of the grain in the grain tank reaches a certain level during the field work, the direction indicator is operated to, for example, a peripheral operator such as a truck driver. It is possible to inform and can perform effective work such as moving the truck to an appropriate position, while traveling by moving the combine on the road with the grain amount of the grain tank above a certain amount In this case, the grain warning can be stopped by the switching means, and the direction display by the original steering operation can be switched to enable the combine to travel on the road.

  According to the second aspect of the present invention, since the flasher unit is provided, it is possible to warn the direction indicator via the flasher unit based on the direction indicator disconnection information.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 show a preferred embodiment of the present invention. FIG. 1 is a side view of a combine, FIG. 2 is a front view of the combine, FIG. 3 is a circuit diagram showing a flasher circuit according to the present invention, and FIG. FIG. 5 is a circuit diagram showing a flasher circuit according to another embodiment of the present invention, and FIG. 5 is a circuit diagram showing a flasher circuit according to a conventional example.

  As shown in FIGS. 1 and 2, the combine 1 includes a pair of left and right crawler traveling devices 2, 2, and a cutting device 4 can be moved up and down at the front portion of the body frame 3 supported by the crawler traveling devices 2, 2. And a threshing unit 5 is mounted on the rear side. In addition, a driver's seat 6 is mounted on the other side of the threshing unit 5, and a grain tank 8 including a grain transfer auger 7 is mounted on the rear side.

  Also, the combine 1 is provided with direction indicators 10a, 10b, 11a, and 11b at the four corners of the fuselage in order to change the course of the fuselage and inform the traveling direction when turning, as in a general vehicle. By operating the turn switch 24 provided in the operation unit 12, the direction indicators 10a, 10b, 11a, and 11b display the traveling direction. On the other hand, the direction indicators 10a, 10b, 11a, and 11b in the work state in the field use the grain amount detection sensors S1 to S3 that are means for detecting the grain amount disposed in the grain tank 8 to obtain the grain. There is a grain warning means that starts flashing according to the quantity and warns the necessity of grain transfer to surrounding workers who work away from the combine 1. The grain amount detection sensors S1 to S3 use limit switches, pressure sensors, etc. that are turned ON / OFF according to the grain amount stored in the grain tank 8, and usually the grain amount detection sensor. S1 detects 1/3 filling of the grain tank 8, the grain quantity detection sensor S2 further detects that the storage tank 8 is filled to 2/3, and the grain quantity detection sensor S3 It is detected that the grain tank 8 is full. In the present invention, when the grain amount detection sensor S2 is turned on, the direction indicator blinks to give a full notice.

  The present invention is capable of switching the direction indicators 10a, 10b, 11a, and 11b as appropriate according to the time of farm work and traveling on public roads, and warns of abnormalities in valve disconnection of the direction indicator. Details will be described.

  The flasher circuit according to the present invention will be described with reference to FIG. 3. The flasher circuit 20 is provided with a switching relay 27 which is a switching means and a flasher unit 26 having a direction indication and a disconnection warning means in addition to the conventional flasher circuit 100. Thus, the above-described problem of the flasher circuit 100 is solved.

  First, the operation of the flasher circuit 20 when the switching unit is set to the road running state will be described, and the operation of the flasher circuit 20 when the switching unit is switched to the working state will be described later.

  In the flasher circuit 20 in a road running state, a breaker fuse 22 that cuts off the circuit according to a load current and a starter switch 23 that is turned on / off by a driver's operation are connected in series to the positive electrode of the in-vehicle battery 21. Supplied as drive power.

  Considering the case where the combine 1 is steered to the right (left turn), the terminal 24R (24L) of the turn switch 24 steered to the right (left) by the driver is turned ON with the grounded terminal 24G. The ground level is supplied to the turn switch input 51R of the controller unit 50 through the turn switch detection diode 25R (25L), and the controller unit 50 detects that the terminal 24R (24L) of the right turn switch 24 is turned on ( In addition, the symbol shown in parenthesis shows the operation at the time of the left turn).

  Next, the controller unit 50 drives the make break type switching relay 27 connected to the switching terminal 52 by outputting a switching signal to the switching terminal 52 based on the input of the turn switch input 51R. According to this figure, in order to break the state in which the terminals 27a and 27b of the switching relay 27 are turned on, the power supply level is supplied to the switching terminal 52 and the coil 27d of the switching relay 27 branched from the starter switch 23. These terminals are set to the same potential so that the coil 27d is not excited.

  When the terminal 27a and the terminal 27b of the switching relay 27 are ON, the battery power source branches from the starter switch 23, passes through the flasher unit 26 and the switching relay 27 in series, and the direction indicators 10a, 10b ( Since the power is supplied up to 11a, 11b), the direction indicator can be turned on. Since the direction indicators 10a and 10b (11a and 11b) are arranged in parallel to the circuit, they blink simultaneously in synchronization with ON / OFF of the power supply.

  Here, the function of the flasher unit 26 will be described in detail. The flasher unit 26 is arranged in series with the flasher circuit 20 and generates an ON / OFF pulse for blinking the load side valve when the switching relay is in the running state. It has both a function and a function of modulating a pulse in accordance with a load change on the load side, thereby forming a disconnection warning means. That is, when the turn switch 24 is turned ON, the flasher circuit 20 is turned ON / OFF at a predetermined cycle, and when any one of the valves of the direction indicator is disconnected, the circuit It has a function of delaying an ON / OFF cycle for detecting a load and supplying it to a circuit. The driver can know that an abnormality has occurred in the direction indicator from the difference in the ON / OFF pulse cycle by an indicator lamp or the like in the driver's seat.

  Next, description will be made on the flasher circuit 20 when the switching means is in the working state.

  In the case where the combine 1 is used for cutting work or the like in the field, the grain is stored in the grain tank 8 according to the progress of the work, and is disposed in the grain tank 8 when a certain storage amount level is exceeded. The performed grain amount detection sensor S1 (or S2) is turned ON. In the controller unit 50, the grain amount detection sensor S1 (or S2) connected to the grain amount detection terminal 53 is recognized as an ON signal when it reaches the ground level, and the switching terminal 52 is grounded according to a preset procedure. At the same time, an ON / OFF pulse is output to the hazard output terminal 51H.

  A power supply branched from the starter unit 23 is connected to the switching terminal 52 through a relay coil 27d of the switching relay 27 in series. When the switching terminal 52 becomes a ground level, a current flows into the relay coil 27d. Then, the terminal 27a and the terminal 27c are turned on to form a working state. At the same time, the power supply branched from the starter switch 23 is connected to the hazard output terminal 51H of the controller unit 50 in parallel with the relay coils 28a and 29a of the RH relay 28 and the LH relay 29 that drive the left / right direction indicator. By repeating the ON / OFF signal to the hazard output terminal 51H, the current interruption to the relay coils 28a, 29a is repeated, and the relay switches 28b, 29b of the RH relay 28, LH relay 29 are turned ON / OFF. It becomes.

  When the terminals 27a and 27c of the switching relay 27 in this working state are ON, and the relay switches 28b and 29b of the RH relay 28 and LH relay 29 are ON, the battery supply power passes through the switching relay 27. Thus, a circuit that branches to the left and right direction indicators 10a, 10b, 11a, and 11b, is supplied in parallel, and passes through the RH relay 28 and the LH relay 29 to be grounded is formed. In this circuit, the ON / OFF pulse is output to the hazard output terminal 51H, and the conduction circuit repeats the connection, so that the left and right direction indicators 10a, 10b, 11a, and 11b are flashed to fill the grain tank 8. Alert the surroundings.

  As described above, each of the flasher circuits 20 in which the combine 1 is in the running state and the working state has been described. Next, when the turn switch 24 is operated by the driver when the combine 1 is in the working state, the running is performed. The description of the configuration in which the state is given priority will be continued.

  In the flasher circuit 20 in the above-described working state, when the turn switch 24 is steered to turn right and the terminal 24R and the terminal 24G are conducted, the turn switch input 51R of the controller unit 50 is connected to the terminal 24G, the terminal 24R, The ground level is supplied via the turn switch detection diode 25R, and it is detected that the turn switch 24 is turned on (for convenience, in this description, the description will be made on the case where the terminal 24R and the terminal 24G are turned on due to the right turn, Even when the terminal 24L and the terminal 24G are turned on by the left turn, the same circuit configuration is adopted.

  Next, the controller unit 50 stops the output to the hazard output terminal 51H, and outputs a processing signal for returning the switching relay 27 by shifting the switching terminal 52 at the ground level to the high level. As a result, the flasher circuit 20 returns to the traveling state, and the traveling state has priority.

  As described above, when the combine 1 in the working state operates the direction indicator and issues a grain amount warning, the priority switch is immediately made to the flasher circuit in the running state by operating the turn switch 24. In addition, the flasher circuit 20 can issue a warning when the valve is disconnected using the function of the flasher unit 26.

(Other embodiments)
In the flasher circuit 20 in the above-mentioned working state, two RH relays 28 and LH relays 29 are used for switching the direction indicators 10a, 10b, 11a, and 11b. It can also be realized by a flasher circuit according to an example. In FIG. 3, the hazard output terminal 51 of the controller unit 50 is connected to one terminal of the relay coils 28a and 29a of the RH relay 28 and the LH relay 29 arranged in parallel, and the other terminal of the relay coils 28a and 29a. Although a configuration in which is grounded is shown, any one of the relays can be replaced with a diode element.

  The flasher circuit 60 in which the RH relay 28 and two diodes are connected in parallel will be described with reference to FIG. 4. The battery power source branched from the starter switch 23 is transmitted to the hazard output of the controller unit 50 via the relay coil 28a of the RH relay 28. Connected to the terminal 51H, the relay switch 28b is opened and closed by the ON / OFF signal output of the hazard output terminal 51H. One terminal of the relay switch 28b is connected to a power supply line, and the other terminal of the relay switch 28b is connected to input terminals of diodes 61 and 62 arranged in parallel. Further, the output terminal of the diode 61 is connected to the right direction indicators 10a and 10b and grounded. Similarly, the output terminal of the diode 62 is connected to the left direction indicators 11a and 11b and grounded, thereby forming a circuit. .

  Thus, a circuit having the same function can be obtained by omitting the LH relay 29 used in FIG. 3 and adding the diodes 61 and 62 of FIG.

  Finally, in the flasher circuit 20 and the flasher circuit 60 according to the present embodiment, the circuit configuration using the relay as the switching means of the direction indicator has been shown. However, it is also possible to use a transistor element instead of the relay. Further, it will be noted that the same function as described above can be achieved even if an LED element is used instead of the bulb of the direction indicator. Further, the embodiment according to the present invention describes the best mode of the functional structure of the direction indicator that can be used for the combine working in the field, but the idea of the present invention is widely used for the machine having the direction indicator. It is added that it can be diverted.

The side view of a combine. The front view of a combine. The circuit diagram which shows the flasher circuit by this invention. The circuit diagram which shows the flasher circuit by the other Example of this invention. The circuit diagram which shows the flasher circuit by a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 8 Grain tank 10a, 10b Direction indicator 11a, 11b Direction indicator 20, 60, 100 Flasher circuit 21 In-vehicle battery 22 Fuse 23 Starter switch 24 Turn switch 24R terminal 24G Grounding terminal 25R, 25L Turn switch detection diode 26 Flasher Unit 27 switching relay (switching means)
27d Coil 28 RH Relay 28a RH Relay Coil 28b RH Relay Switch 29 LH Relay 29a LH Relay Coil 29b LH Relay Switch 50 Controller Unit 51R Turn Switch Input 51L Turn Switch Input 51H Hazard Output Terminal 52 Switching Terminal 53 Grain Quantity Detection Terminal 61, 62 Diode S1, S2, S3 Grain amount detection sensor (detection means)

Claims (2)

A threshing unit and a grain tank that stores the grain threshed in the threshing unit, are driven by a traveling device, and are steered while being displayed by a direction indicator based on the steering operation of the traveling device. In the combine that
Detecting means for detecting the amount of grain in the grain tank;
Based on a certain amount of grain detection by the detection means, a grain warning means for operating the direction indicator,
Switching means for switching between the operation of the warning means and the operation of the direction indicator by the steering operation,
Combine that is characterized by that. A flasher unit that blinks and displays the direction indicator is provided.
Comprising disconnection warning means for operating the direction indicator via the flasher unit when the direction indicator is disconnected;
The combine according to claim 1.

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