JP2008072975A - Operation device of combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation device of a combine regarding to an operating lever essential for the traveling work operation of the combine, improving the operability of traveling work of the combine, and while suppressing its production cost, capable of securing controlling reliability. <P>SOLUTION: This operation device of the combine is constituted by equipping at least one lever of a travel transmission lever (5c) capable of performing an inclined operation for traveling speed change and front and rear progression-switching operation of a machine body, and a swinging lever (3) capable of performing the inclined operation for the lifting up and down operation of a reaping part (A) and left and right swinging operation of a machine body, installing a multiple number of push button switches (SW) for alternative operations at its grip part on one of the levers, forming a multiple number of partial voltage resistance circuits (R) having different resistance values with each other for corresponding to these multiple number of push button switches, and also installing as mediating the above push button switches (SW) enabling the conduction of each of the partial voltage resistance circuits (R) with a common signal line (L). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine operating device including an operation lever for running and operating a combine.

  Japanese Patent Application Laid-Open No. 2004-228561 describes a combine operating device that includes an operation lever that is indispensable for traveling and working the combine. Specifically, in FIG. 4 of the same document, there are described a turning lever for operating the left-right turning operation of the airframe and the raising / lowering operation of the cutting unit, and a traveling speed change lever for operating the traveling speed of the airframe and the forward / backward movement.

  In the above combine operating device, the combine operator adjusts the vehicle speed with the left hand side shifting lever, and at the same time, performs the steering operation and the lifting and lowering operation of the cutting part with the right hand side turning lever. By arranging them close to each other, it is possible to efficiently proceed with the cutting work according to the field condition and the traveling according to the traffic condition on the road.

For example, with a manual switch that finely adjusts the direction of travel of the aircraft, in addition to lever operation of both hands, it is possible to finely adjust the direction of travel of the aircraft to match the row of cereals, In addition, the chopping up / down adjustment switch performs fine adjustment of the chopping part to follow the height of the field, and the handling depth adjustment switch raises the cutting part at the low position when approaching the ridge. It is possible to adjust the handling depth of the threshing portion according to the condition.
Japanese Patent No. 3513385

  However, the above-mentioned fine adjustment switch has a problem in terms of operability because it must be operated by releasing a hand from an operation lever that is indispensable for the traveling operation of the combine. In order to solve this operability problem, If the fine adjustment switch is configured in the gripping portion of both levers, the production cost increases by incorporating a harness made up of a large number of signal circuits corresponding to the number of switches into an operation lever that is a movable body that is always oscillated. This has been a practical problem in that the reliability of control is reduced.

  An object of the present invention is to provide an operation device for a combine that can improve the operability of the combine traveling operation and reduce the production cost and ensure the control reliability for the operation lever essential for the combine traveling operation. It is to provide.

  According to the first aspect of the present invention, the traveling speed change lever (5c) and the mowing part (A) that can be tilted to perform the traveling speed change operation and the forward / reverse switching operation of the airframe and the left / right turning operation of the airframe are performed. In the operation device of the combine provided with at least one lever of the swivel lever (3) that can be tilted to perform the operation, a plurality of push button switches (SW) to be selectively operated on the grip portion are provided on the one lever. A plurality of voltage dividing resistor circuits (R) having different resistance values are formed corresponding to the plurality of push button switches (SW), and each voltage dividing resistor circuit (R) is connected to a common signal line (L ) Is provided with the push button switch (SW) so as to be conductive.

  The travel speed lever can be used to adjust the traveling speed of the aircraft, including forward / reverse switching, and the turning lever can be used to adjust the turning of the aircraft and the harvesting height of the culm during the traveling process, and at least one of the levers. Since the operation of a plurality of push button switches provided in the gripping part of the handle is specified as a voltage dividing signal by the corresponding voltage dividing resistor circuit, traveling work control according to the switch operation is possible via a common signal line. Become.

  According to a second aspect of the present invention, in the configuration of the first aspect, the plurality of push button switches (SW) include control input means for adjusting the handling depth of the cereal to the deep handling side and the shallow handling side. It is characterized by comprising. The handling depth of the cereal is adjusted by operating the push button switch.

  According to a third aspect of the present invention, in the configuration of the first aspect, the plurality of push button switches (SW) constitutes a control input means for adjusting a right / left tilt posture of the airframe. The left / right inclination of the aircraft is adjusted by operating the push button switch.

According to the configuration of claim 1, by operating a plurality of push button switches provided in the grip portion of at least one lever, a divided voltage signal by a corresponding voltage dividing resistor circuit is transmitted via a common signal line. Traveling work control according to the switch operation is possible.
Therefore, when operating the operation lever, which is indispensable for the traveling operation of the combine, it can be operated by a plurality of push button switches arranged on the grip portion, and simple operation by a single signal line for sending a partial pressure signal. The configuration enables driving operation control corresponding to the selection operation of a plurality of pushbutton switches, improving the operability of the traveling operation of the combine and ensuring the control reliability while suppressing the production cost. be able to.

  According to the configurations of the second and third aspects, it is possible to quickly adjust the operation without releasing a hand from each lever.

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
The combine to which the present invention is applied includes, for example, as shown in FIG. 1, a side view of the machine body, a harvesting part A that harvests cereals from a farm field, a threshing part B that receives and threshs and receives the harvested grains Storage unit C that stores the selected grain, working machine such as a discharge part D by an auger mechanism that discharges the stored grain to the outside of the machine, left and right crawlers E and E that are traveling means, and work machine operation And a control unit F for operating the vehicle. Further, the aircraft includes an engine which is a driving part of the combine and a control device thereof, a traveling transmission device incorporating a main transmission mechanism for transmission control of the power of the crawlers E and E, and the like. In addition, a winker is provided on both sides of the machine body, and the cutting part A is provided with a headlamp on the right outer side and a work lamp on the upper part.

  As shown in FIG. 2, the cab arranged in the control unit F has various switches for operation of the monitor panel, the airframe traveling, and various work devices, centering on the operator seat 1. An operation lever or the like is arranged.

  More specifically, a monitor panel 2 incorporating a monitor display device capable of switching display is arranged in front of the seat 1, a turning lever 3 and a hand table 3a for turning left and right and cutting up and down on the right side, and on the left side. Is a switch panel 4 provided with a switch group for operating equipment, a sub-transmission lever 5a of a sub-transmission mechanism for selecting a speed band on the front side thereof, an accelerator lever 5b for changing and holding the engine speed, and forward / reverse rotation of the main transmission mechanism A traveling speed change lever (main speed change lever) 5c for continuously variable speed operation, a harvesting / moving mono lever 5d for harvesting equipment operation by mowing and threshing, and the like are disposed.

  The swivel lever 3 is configured to be tiltable in the left-right direction for the left-right swiveling operation of the airframe, and to be tiltable in the front-rear direction for the lifting operation of the cutting unit A. Provide a momentary switch for adjustment.

  The fine adjustment switch can be operated with the thumb at the upper end of the gripping portion of the turning lever 3 as shown in FIG. 3 in an enlarged top view (a), an enlarged front view (b), and an enlarged side view (c). Right and left tilt switches SW1 and SW2 for adjusting the rolling of the aircraft, and raising and lowering switches SW3 and SW4 for adjusting the vehicle height, and a right and left fine adjustment switch for finely adjusting the traveling direction of the aircraft so that it can be operated with the thumb on the left side of the grip SW5 and SW6, and upper and lower fine adjustment switches SW7 and SW8 for finely adjusting the reaping portion up and down so as to be operable with the index finger and the middle finger are arranged on the front side of the gripping portion.

  As shown in FIG. 4, the switch circuit of the adjusting switch is connected between the machine controller C and the turning lever 3 with a multi-core cable including a common power line S, a common ground line G, and signal lines L1 to L3. The turning lever 3 side forms a plurality of voltage-dividing resistor circuits having different resistance values corresponding to the four push button switches of the right and left tilt switches SW1 and SW2 and the vehicle height lowering switches SW3 and SW4, Each of the voltage dividing resistor circuits is provided with the push button switch so as to be conductive to the common signal line L1.

  For fine adjustment of the direction, a plurality of voltage dividing resistor circuits corresponding to the right and left fine adjustment switches SW5 and SW6 are formed for the signal line L2. Similarly, for fine adjustment of the cutting part, the signal line L3 is used. A plurality of voltage dividing resistor circuits corresponding to the upper and lower fine adjustment switches SW7 and SW8 are formed.

  Specifically, the signal line L1 receives the reference voltage from the common power supply line S via the resistor R1, and connects the resistor R2 in series with the right tilt switch SW1, and in series with the left tilt switch SW2 connected by short-circuiting the resistor R2. A resistor R3 is connected, a resistor R4 is connected in series with the raising switch SW3 connected by short-circuiting the resistor R3, and a resistor R5 is connected in series with the lowering switch SW4 connected short-circuited.

Further, the signal line L2 receives a reference voltage from the common power supply line S via a resistor R6, and a resistor R7 is connected in series with the right fine adjustment switch SW5, and the left fine adjustment switch SW6 is short-circuited and connected. And a resistor R8 is connected in series.
Similarly, the signal line L3 receives a reference voltage from the common power supply line S via a resistor R9, and a resistor R10 is connected in series with the upper fine adjustment switch SW7, and the lower fine adjustment switch connected by short-circuiting the resistor R10. A resistor R11 is connected in series with SW8.

  In the switch circuit having the above configuration, the right tilt switch SW1 is interposed in the voltage dividing resistor circuit including the four resistors R2 to R5, the left tilt switch SW2 is interposed in the voltage dividing resistor circuit including the three resistors R3 to R5, and the lowering switch SW3. Is provided in a voltage dividing resistor circuit by two resistors R4 and R5, and a raising switch SW4 is provided in a voltage dividing resistor circuit by one resistor R5, thereby providing a divided voltage signal corresponding to the four push button switches SW. Since it is specified through the common signal line L1, traveling work control according to the switch operation is possible.

  In the above case, each of the resistors R1 to R5 has, for example, a resistance value of 120Ω, 330Ω, 100Ω, 51Ω, and 33Ω, thereby identifying the switch operation identification accuracy by four voltage-divided signals with a resistance value of 1% tolerance. Can be secured. The same applies to the fine adjustment switches SW5 and SW6 on the right and left of the traveling unit and the fine adjustment switches SW7 and SW8 on the top and bottom of the cutting unit. The specific control operation is a single switch when the vertical adjustment control of the cutting unit is seen. A single pulse of 100 ms is output by the ON operation, and the tip of the weed culm is moved up and down in units of 15 to 20 mm.

  With the above configuration, when operating the operation lever, which is indispensable for the traveling operation of the combine, just move the thumb, index finger, middle finger while holding the grip, and move the vehicle up and down, left and right, Adjustment and fine adjustment of cutting up and down are possible. In addition, the difficult work of passing about 10 wires inside the pipe of the lever can be simplified by providing a resistor inside the gripping part, with fewer wires of 6 power sources, GND, and signals. A simple configuration with a single signal line for sending makes it possible to control traveling work corresponding to the selection operation of multiple pushbutton switches. Control reliability can be ensured while reducing costs. In addition, the amount of wiring used can be reduced because the size of the pipe of the lever can be suppressed while the pipe can be routed inside the pipe, which can be evaluated in terms of environmental considerations.

Next, a configuration example of the travel transmission lever will be described.
The travel shift lever performs travel shift of the aircraft by tilting operation in the front-rear direction and forward / reverse switching by tilting operation in the left-right direction at its neutral position. , Momentary switch SW for turning change that applies cereal-induced sync speed (low speed, standard side, high speed), sudden turning of the aircraft (so-called spin turn), for turning on / off interlocking of cutting clutch An alternate switch SW is arranged and a voltage dividing resistor R is provided. Further, as shown in FIG. 6, the switch circuit diagram is configured so that the switch operation can be identified by the voltage dividing resistor circuit and the common signal line L.

  Specifically, as shown in FIG. 5 in an enlarged front view (a) and an enlarged side view (b), the upper and lower switches SW1 and SW2 of the adjustment chain, which can be operated with the index and middle fingers on the front side of the gripping portion, On the right side, there are provided a high-speed and low-speed cutting switch SW3 and SW4 that cause the cereal to be operated with the thumb, and a turn switch SW5, and an on / off switch SW6 that can be operated with the thumb on the rear side of the grip. In this state, when the on / off switch SW6 is turned on, the cutting clutch A and the feed chain clutch are automatically disconnected when the cutting unit A is raised above the set height.

  As shown in FIG. 6, the travel shift lever switch circuit connects the machine controller C and the turning lever 3 with a multi-core cable comprising a common power line S, a common ground line G, and signal lines L1 to L4. By configuring the voltage dividing resistor circuit with the resistors R1 to R6, it is possible to reduce the number of wirings, which conventionally required about eight, to six, so that the same effect as described above can be obtained.

Next, the monitor panel 2 will be described.
As shown in FIG. 7, the monitor panel 2 includes a box-shaped panel frame 2b as a mounting case in which a mounting opening is formed, and an engine tachometer as a display unit that can be inserted into the mounting opening from above. A monitor assembly 11 in which a meter portion 11a and a monitor display portion 11b using a liquid crystal display device are integrated, and an upper panel 13 in which operation portions of switch groups 13a to 13f are formed symmetrically on both sides of the display window by blow molding or the like. It consists of.

  Specifically, as shown in FIG. 8, a vertical cross-sectional view shows that the fixing member 2c is introduced from the bottom hole 2d formed in the bottom surface portion of the panel frame 2b, and this fixing member 2c is connected to the back side of the mounting opening. Then, the monitor assembly 11 is fixed so as to be attracted by screw fastening from the back side thereof. The bottom hole 2d is provided with a detachable cover in order to ensure maintainability. In the monitor display portion 11b, switch contact portions that are separated from the operation portions of the switch groups 13a to 13f and receive their respective actions are formed.

  The monitor panel 2 configured as described above has a monitor assembly 11 and an upper panel 13 which are divided to improve the waterproofness and dustproofness of the operation parts of the switch groups 13a to 13f. It becomes possible. Further, by configuring the operation portions of the switch groups 13a to 13f of the upper panel 13 with a stepped shape from the surface of the monitor display portion 11b, it is possible to grasp the position of the switch at night or by some groping. .

  Specifically, the switch group includes left and right blinker switches 13a and 13b, a work light switch 13d, a headlight switch 13c, a display changeover switch 13e, a horn switch 13f, and the like. The left and right blinker switches 13a and 13b are respectively The left and right airframe indicator lamps are for blinking, the headlamp switch 13c and the work lamp switch 13d are for blinking the lights of the cutting part A, and the display changeover switch 13e is for switching the screen of the monitor display part 11b. Frequently used switches are arranged near the operator, that is, a horn, a display switch on the front side, a work light, a headlight in the middle, and a winker switch on the outside.

  The blinker operation by the left and right blinker switches 13a and 13b is alternately switched between blinking and extinguishing every time each switch is operated, that is, blinks when pressed once, and is extinguished when the same switch is pressed again in that state. Parts. Further, when the blinker on one side is blinking, and the other side is blinked by operating the switch, the control unit is configured to switch the left and right blinking operation and turn off the original blinker.

  On the operation parts of the left and right blinker switches 13a and 13b, a built-in green LED is blinked in conjunction with the blinker for visual confirmation of operation, and the monitor display part 11b is displayed to prevent forgetting to turn off the switch. In addition, the display control is performed so that the characters “left” and “right” and images (arrows) are displayed.

  In addition, the switch operation of the work light switch 13d and the headlight switch 13c is alternately switched on and off every operation, that is, the light is turned on when pressed once and turned off when pressed again in that state. Configure. When these light switches 13c and 13d are pressed, the built-in orange LED is lit in conjunction with the switch operation section, so that the switch section is also lit while the light is on, so that the operation can be confirmed visually. Become.

  By arranging the monitor panel 2 in the front center portion of the control seat 1 and arranging various switches on both sides of the monitor display portion 11b as described above, the operability of the switch can be improved. The switch can be operated with either the left or right hand when operating the lever 5c or the like. Therefore, the problem that the blinker, work light, headlight, and horn switch, which are configured by a conventional combination switch, can be operated only by one of the left and right hands depending on the arrangement location can be solved.

  In addition to the above lighting control, an on switch and an off switch are arranged symmetrically in place of the work light switch 13d and the headlight switch 13c, and when the on switch is pressed once, the headlight lights up and when it is pressed again. Further, the work light is turned on, and when the OFF switch is pressed once, the work light is turned off, and when it is pressed again, the headlight is turned off. Characters and images (light pictures) of “lighting ON” and “headlight + work light ON” are displayed. By configuring in this way, it is possible to confirm the operation visually, so that the same operability as described above can be obtained.

Next, an auger operation panel for auger discharge operation will be described.
The auger operation panel 21 is configured as a switch box that is connected to a moving cable 21c extending from the control unit F and can be operated outside the machine when the discharge unit D is operated by the auger mechanism. As shown in FIG. 9, the operation switch includes a discharge switch 22, an overhang switch 23a, a storage switch 23b for automatically operating the auger with one touch, a stop switch 24 for emergency stop of these automatic operations, a discharge position. Adjustable up / down switch 25a, 25b, left / right switch 25c, 25d, transfer distance adjustment telescopic switch 26a, 26b, discharge port direction adjustment left / right switch 27a, 27b, discharge port direction up / down switch 28 And an overhang position switch 23c for selecting an overhang position by the overhang switch 23a from two set positions.

  By using simple tactile switches that are always open, all of these operation switches can be configured compactly and with good operability within the reach of their thumbs while holding the switch box with one hand. it can. In addition, the discharge switch 22 is provided with an operation display lamp 22a, and the extended position switch 23c is provided with selection display lamps 23d and 23e so that the operation status can be confirmed by LED display.

  The auger operation panel 21 has a built-in CPU for transmitting switch signals from a number of switches to the controller of this machine, and constitutes a wired communication means using the moving cable 21c as a communication line. With this wired communication means, the number of wires for connection can be suppressed. In addition, the number of switches that increase or decrease depending on the specifications of the auger operation panel due to the installation of the CPU is determined by the presence or absence of switches on the circuit board. Because it can be temporarily replaced even if there is a difference in equipment, maintenance can be improved.

Next, another configuration example of the switch box type auger operation panel will be described.
As shown in FIG. 10A, the auger operation panel 31 is constituted by two four-way levers 25 and 26 in addition to the tact switch.

  Specifically, as shown in the cross-sectional view (b) along the line AA in FIG. 10A, the overhang switch 23a, the storage switch 23b, the stop switch 24, the discharge switch 22, and the up / down switch 28 are arranged on one side. On the other side, as shown in the cross-sectional view (c) along the line B-B, a four-way lever 25 that integrates an upper / lower switch for adjusting the discharge position and a left / right switch, a telescopic switch, and a left / right switch for adjusting the discharge direction. Are arranged, and a projecting position switch 23c for selecting a projecting position by the projecting switch 23a from three set positions.

  The discharge switch 22 is provided with an LED display, and the extension position switch 23c is provided with three selection display LEDs 23d to 23f, so that the lever operation for adjusting the discharge position of the auger can be performed. The effect of can be obtained.

It is a body side view of a combine. It is equipment arrangement drawing of a cab. They are an enlarged top view (a) enlarged front view (b), and an enlarged side view (c) of a turning lever. It is a switch circuit diagram of a turning lever. FIG. 4 is an enlarged front view (a) and an enlarged side view (b) of a travel shift lever. It is a switch circuit diagram of a travel shift lever. It is an enlarged sketch of a monitor panel. It is a longitudinal cross-sectional view which shows an internal structure. It is a front view of an auger operation panel. It is the front view (a) of the auger operation panel of another structure, the sectional view (b) of the AA line, and the sectional view (c) of the BB line.

Explanation of symbols

1 Control seat 3 Swivel lever 5c Traveling shift lever (main shift lever)
C Machine controller F Control section S Common power line L Signal line R Resistance (voltage divider resistor circuit)
SW adjustment switch

Claims (3)

  Turning that can be tilted to perform the lifting and lowering operation of the traveling speed change lever (5c) and the cutting part (A) that can be tilted to perform the traveling shift operation and forward / reverse switching operation of the aircraft and the left and right turning operation of the aircraft. In the operation device of the combine provided with at least one lever of the lever (3), the one lever is provided with a plurality of push button switches (SW) to be selectively operated, and the plurality of push button switches. A plurality of voltage dividing resistor circuits (R) having different resistance values corresponding to (SW) are formed, and the voltage dividing resistor circuits (R) can be electrically connected to a common signal line (L). A combine operating device, characterized in that a switch (SW) is interposed.   The operation of the combine according to claim 1, wherein the plurality of push button switches (SW) constitute control input means for adjusting the handling depth of the cereal to the deep handling side and the shallow handling side. apparatus.   The combine operating device according to claim 1, wherein the plurality of push button switches (SW) constitute control input means for adjusting a tilting posture of the airframe in the left-right direction.

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