JP2007074988A - Riding-type farm working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester equipped with a front light on a reaping part, improved in safety when the combine harvester conducts reaping work or travels on a road at night. <P>SOLUTION: In a riding-type farm working machine, the front light 17 is attached to a front frame 14 of the reaping part 3 through a first motor 33 and a second motor 34, so as to be freely vertically oscillatory and freely horizontally rotatable. An illuminating direction of the front light 17 is set to an optimal state, by bringing down and rotating a crosswise operating lever 35 located near a handle. Further, the illuminating direction the front light 17 is made to follow a traveling direction of a machine body, by interlocking rotation of the handle with the second motor 34. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a riding-type farm work machine such as a riding-type combine.

  A self-propelled self-propelled passenger combine has a main part having a cockpit and a cutting part arranged to adjust the height in front of the main part, and the grains harvested by the cutting part are placed in the main part. The straw that has been transported to the provided threshing section and threshed by the threshing section is stored in a Glen tank, and the straw is discharged outside the machine.

There are cases where various farming operations such as tillage work using a riding type tractor and rice transplanting work using a riding type rice transplanter are performed at night (after sunset or before dawn). In some cases, the vehicle travels on the road to and from the farm work at night, or travels on the road to move the farm machine at night regardless of the farm work. A light is provided on the agricultural machine for such nighttime farm work and road running, especially in the case of a ride-type combine, in general, a headlight is provided on the main body, and a front light that illuminates the front is provided on the cutting part. (See, for example, Patent Document 1).
JP 2004-229521 A

  For example, when performing harvesting operations with a combine, the harvesting conditions such as the state of the field and the state of the rice fall are variously different.Therefore, when performing harvesting at night with a combiner, the operator must If you want to see the rice field more clearly, or if you want to overlook the rice field widely, or if you want to check the field after harvesting, or if you want to see the situation of uncut rice, you want to change the place or range illuminated by the light. May want.

  Further, when traveling on roads or roads, the driver may want to clearly check the road surface condition, or may want to clearly see the place to turn when changing the steering direction. In particular, it can be said that such a demand is strong when traveling on an unpaved road such as a tunnel.

  However, in the conventional farm work machine including the combine of Patent Document 1, the light is fixedly attached to the vehicle body, and the irradiation direction of the light is constant, so that it can respond to the operator's request at the time of farm work or traveling on the road. could not.

  This invention makes it a subject to improve such a present condition.

  In order to achieve the above object, a first aspect of the present invention is directed to a riding-type agricultural work machine in which a vehicle body having a cockpit is provided with a front light that illuminates the front thereof. It is attached to the vehicle body so that it can be changed in the left and right directions.

  The invention according to claim 3 is the one in which claim 1 or 2 is applied to the combine, and the manual operation means for adjusting the irradiation direction of the front light to a part of the vehicle body that can be reached by the operator seated in the cockpit Is provided. The invention according to claim 3 is the invention according to claim 1 or 2, wherein the vehicle body is constituted by a main body having a crawler and a cockpit, and a cutting part disposed at a front part thereof so that the height can be adjusted. The front light is provided in the cutting part.

  According to a fourth aspect of the present invention, in the third aspect, the traveling speed change mechanism is configured to be switched between a cutting operation mode and a road traveling mode by a lever operation, while the front light has an irradiation direction of the traveling vehicle body. It is possible to switch between the automatic variable (following) mode that is suitable for the steering direction and the fixed mode that does not change the irradiation direction even if the steering is performed, and the front light shifts while the power to the front light is ON. It is set to switch to the automatic variable mode when the mechanism enters the road running mode.

  Further, in the invention of claim 5, in any one of claims 1, 3 and 4, a follow mode for changing the irradiation direction of the front light by following the rotation of a handle or other movable body, and irradiation of the front light A fixed mode in which the direction is fixed, and a switch for switching between the two modes is provided in the driver's seat.

  According to the invention of claim 1, since the irradiation direction of the front light can be changed to the vertical direction or the horizontal direction or both the vertical and horizontal directions, it is possible to respond to the operator's request at the time of agricultural work such as mowing work, traveling on the road, or taking in and out of the warehouse It is possible to realize a response irradiation mode.

  According to the second aspect of the present invention, the direction of irradiation by the front light can be switched as necessary by the operator, which is very convenient. As described above, the harvester has a front light on the harvester as described above, but the harvester is arranged to block the operator's field of view on the farm and road surfaces. Making the direction variable is particularly suitable for improving visibility on the field and on the road. In other words, making the irradiation direction of the front light adjustable is particularly beneficial when applied to a riding combine.

  According to the fourth aspect of the present invention, when the course is changed by running on the road, the place on the side that bends with the front light can be intensively illuminated, so that safety can be significantly improved. Further, since the automatic variable mode of the front light is activated by turning on the light and entering the sub-shift mode, the front light does not move in the daytime when no illumination is required, and thus the power for moving the front light can be saved.

  By the way, in a combine that travels with a crawler, the responsiveness between the steering wheel and the traveling machine body is not high compared to a wheel-driven agricultural machine, and the traveling machine body faces the front even if the steering wheel is turned (even if it is rotated). There is. For example, in order to avoid roadside obstacles when traveling on the road, there are cases where the direction of the traveling aircraft does not change, but in this case, the front light preferably illuminates the front of the traveling aircraft. According to the fifth aspect of the present invention, when the front direction is set as the standard mode of the front light irradiation, the optimal operating environment is set by switching from the follow mode to the fixed mode by turning on the switch. Obtainable.

  Next, an embodiment in which the present invention is applied to a self-propelled self-decomposing combine for rice (hereinafter simply referred to as “combine”) will be described with reference to the drawings.

(1) First Embodiment FIGS. 1 to 4 show a first embodiment. This embodiment is applied to a four-cut harvesting combine. FIG. 1 is an overall schematic perspective view. First, the outline of the combine will be described based on FIG. In the following description, the term “left and right” is used. The left and right are based on the direction toward the forward direction.

  The combine includes a main body portion 2 having a crawler 1a and a cutting portion (pretreatment portion) 3 disposed in front of the main portion 2 so as to be adjustable in height. The main body portion 2 and the cutting portion 3 constitute the vehicle body 1. Has been. An open-type cockpit (control area) 4 is formed in the right part of the substantially first half of the main body 2, and a threshing part 5 is arranged on the left side of the cockpit 4. A Glen tank 6 is provided behind 4. Reference numeral 7 denotes an auger.

  A cockpit (chair) 8 is provided in the cockpit 4. A handle 10 is disposed in front of the cockpit 4 in the main body 2 via a front column 9. An operation unit 11 is provided which is provided with levers for switching travel speeds and working states. A side cover 12 is disposed on the right side of the cockpit 4.

  The operation unit 11 is a lever for changing the traveling speed in accordance with the purpose, a main transmission lever used at the time of cutting work, an auxiliary transmission lever used at the time of traveling on the road, a lever for raising and lowering the cutting unit 3, and driving of the auger 7. A lever such as a lever to be operated is arranged, and FIG. 2 shows an operation lever that constitutes a part of the speed change mechanism in cooperation with the missions.

  In this example, the operation unit 11 is provided with a main transmission lever 13a that performs forward / stop / reverse switching and speed adjustment, and a sub-transmission lever 13b that switches modes such as cutting and road running. That is, when the main transmission lever 13a is tilted forward from the neutral stop state in which power is not transmitted to the crawler, the speed increases in proportion to the tilt angle when it is tilted forward, while the stop is stopped. If you tilt backward from the state, you will move backward and increase the speed in proportion to the backward tilt angle.

  The low-speed mode in which the auxiliary transmission lever 13b is tilted forward is used, for example, when the rice is in a state where it is over-brown or half-fallen, or when crops other than rice and crops with poor harvesting conditions are harvested. The combine does not run in the neutral position. When the sub-transmission lever 13b is set to the standard mode, the standard cutting operation can be performed safely while the rice is upright and the field conditions are good. When traveling on the road, the traveling mode is selected and the vehicle can travel at high speed.

  The operation unit 11 includes a main transmission lever for selecting a main transmission mode used at the time of cutting work, an auxiliary transmission lever for selecting an auxiliary transmission mode used at the time of traveling on the road, a lever for raising and lowering the cutting unit 3, an auger 7 is arranged, and a sub-shift lever for selecting the sub-shift mode is indicated by reference numeral 13b.

  The cutting unit 3 includes a scraping chain (not shown), a cutter (not shown), and the like to which the front frame 14, the weed body 15 and the tine 16 are attached. A front light 17 is attached to the left and right side surfaces of the front frame 14 so as to be able to swing and horizontally turn.

  FIG. 3 is a side view partly broken and partially conceptually shown. As shown in FIG. 3, the cutting part 3 has a link body 19 at the front end of the support beam 18 extending in the front-rear direction. It is attached via. The support beam 18 is tilted forward as viewed from the side, and details thereof are omitted. However, the rear end portion of the support beam 18 is fixed to a lifting support shaft 20 that is supported by a bearing in the left-right longitudinal direction.

  The main body 2 includes a body frame 21, and a front and rear halfway portion of the support beam 18 and the body frame 21 are connected by a hydraulic cylinder 22. Therefore, by moving the piston rod of the hydraulic cylinder 22 back and forth, the cutting unit 3 can be moved up and down. The cutting unit 3 moves up and down while changing the posture in side view. Note that the support beam 18 is disposed at a substantially intermediate portion between the left and right sides of the main body 2.

  The main body 2 includes a hydraulic unit having a hydraulic pump 23 and an oil tank 24, and the hydraulic pump 23, the oil tank 24, and the cylinder 22 are connected by a pipe line 26 via an electromagnetic solenoid 25. In addition, the control unit 27 that controls various cylinders and the like is provided. The operation unit 11 is provided with a first sensor (limit switch) 28 that detects when the auxiliary transmission lever 13b is switched to the road running state. The first sensor 28 and the control unit 27 are connected. The electromagnetic solenoid 25 is also electrically connected to the control unit 27.

  Further, a dog 29 protruding radially outward is provided on the lifting support shaft 20, and when the front end of the weeding body 15 of the cutting unit 3 is raised by a certain height from the road surface in the vicinity of the dog 29, the dog 29 is hit. A second sensor (limit switch) 30 that is turned on upon contact is provided. In the present embodiment, when the mowing unit 3 is raised while the auxiliary transmission lever 13b is in the traveling state, the ascent of the mowing unit 3 stops when the mowing unit 3 reaches a certain height lower than the upper limit height. The cutting unit 3 is held at a certain height from the road surface.

  When the ascent is stopped at a certain height from the road surface, the center optical axis F of the light emitted from the front light 17 is in the range of θ1 upward and θ2 downward with reference to the state parallel to the road surface. Is set to fit within. Specifically, the elevation angle θ1 and the depression angle θ2 are both set to 3 degrees.

  Since it is generally not necessary to illuminate the front light during daytime road driving, the lighting switch 31 is associated with the first sensor 28 and the lighting switch 31 of the front light 17 (or the switch of the entire light group including the headlights). As long as the first sensor 28 is ON and the second sensor 30 is ON, it is possible to set the control unit 27 so that the operation stop signal to the electromagnetic solenoid 25 is not issued.

  Further, there is a possibility that the auxiliary shift lever 13b is switched to road running after raising the cutting unit 3 to near the upper limit, for example, so that if the first sensor 28 is turned on with the third sensor 30 turned off, It is also possible to automatically control the cutting unit 3 to be raised or lowered until the sensor 30 is turned on.

  As a means for configuring the front light 17 to be able to swing vertically and horizontally, as shown in FIG. 4A, a first motor 33 whose rotating shaft extends horizontally and horizontally is fixed to the front frame 14, and the first motor A second motor 34 having a rotating shaft 34 a extending vertically is fixed to the rotating shaft 33 a of 33, and the front light 17 is further fixed to the rotating shaft 34 a of the second motor 34.

  As an example of manual operation means for driving both motors 33 and 34, as shown in FIG. 4B, for example, on the upper surface of the front column 9, a cross operation type that can be rotated in the left-right direction and the front-rear direction. A lever 35 is provided. When the cross operation lever 35 is tilted to the left with the switch 31 turned on, the front light 17 rotates horizontally to the left, and when the cross operation lever 35 is tilted to the right, the front light 17 rotates horizontally to the right. When the cross operation lever 35 is tilted forward, the front light 17 is rotated upward. When the cross operation lever 35 is tilted forward, the front light 17 is rotated downward. The lever 35 may be disposed at the position of the operation unit 11.

  In the present embodiment, for example, during the cutting operation, by operating the cross operation lever 35, the irradiation direction of the front light 17 can be adjusted so that the place that the operator wants to see is illuminated. For this reason, it can contribute to the improvement of work efficiency, ensuring of safety, etc. In addition, when traveling on the road, the state of the road surface can be confirmed by operating the cross operation type lever 35, which contributes to safe traveling.

  In this embodiment, when traveling on the road, the front light 17 is in an automatic mode in which the vertical irradiation direction is kept constant. However, a switch for canceling the automatic mode is provided, and the vertical irradiation angle is set manually. It is also possible to make it adjustable. It is also possible to travel on the road with the cutting part 3 at an arbitrary height. In this case, a height sensor (for example, a potentiometer) that detects the height of the cutting part 3 from the road is provided, and this height is provided. By associating the sensor with the first motor 33, it is possible to control the irradiation direction so as to be within a range of 3 degrees above and below the horizontal at any height.

(2). Second embodiment (FIG. 5)
In the second embodiment shown in FIG. 5, the bracket portion 17 a is attached to the front frame 14 with a pin 36 so that the front light 17 can only swing up and down, and the rotation angle can be changed by an electromagnetic solenoid 38. It is like that. Therefore, in this embodiment, the irradiation angle of the front light 17 is switched stepwise (two steps or three steps).

  As can be understood from this example, the rotation angle of the front light 17 can be adjusted steplessly or stepwise. The front light 17 can also be attached to the front frame 14 so that only horizontal turning is possible.

(3) Third embodiment (FIG. 6)
FIG. 6 shows a third embodiment corresponding to claim 4. In this embodiment, when the front light 17 is configured to be horizontally turnable by the second motor 34, the rotary encoder 40 that detects the rotation direction and the rotation angle of the rotation shaft 39 of the handle 11 is provided to control the rotary encoder 40. The unit 27 is electrically connected. Then, the second motor 34 is driven based on the reading result of the rotary encoder 40, and the irradiation direction of the front light 17 is controlled to face the turning direction.

  The rotation angle of the handle 11 does not necessarily need to be detected, and only the rotation direction of the handle 11 may be detected by a sensor, and the front light 17 may be horizontally turned by a predetermined angle based on the detection signal. .

  Also, the front light 17 is irradiated in the steering direction when traveling on the road as in the present embodiment, and the front light 17 is moved by manual operation means such as the cross operation lever 35 as in the first embodiment. Manual adjustment is not an exclusive configuration, and both can be provided (for example, the front light 17 can be manually operated in the main transmission mode, and the automatic follow-up mode can be set in the auxiliary transmission mode. good).

  As shown in FIG. 6, a changeover switch S such as a push method is provided at an appropriate part such as the center surface of the handle 10, and when this switch S is pressed, a follow mode in which the irradiation direction of the light 17 is directed to the rotation direction of the handle 10. The irradiation direction is set to be alternately switched to a fixed mode facing the front of the vehicle body 1. Therefore, for example, the front light 17 is useful when the front light 17 is turned to the front although the handle 10 is cut to avoid an obstacle on the roadside or pass the opponent.

  It should be noted that the posture of the front light 17 before turning off the handle 10 and the relative posture with respect to the vehicle body 1 are stored, and the front light 17 (or headlight) is maintained even if the orientation of the vehicle body 1 is changed by rotating the handle 10. ) Irradiation direction can be set so as not to change. In other words, even if the direction of the vehicle body 1 changes, the front light 17 can be set so as to keep irradiating one point. In this case, the front light 17 rotates horizontally in the direction opposite to the rotation direction of the handle 10.

(4). Others The present invention can be embodied in various ways other than the above embodiment. For example, the application target is not limited to the combine, but can be applied to other agricultural machines such as a tractor. Moreover, when applying to a combine, it is also possible to provide a front light in three places, the left and right both sides of a cutting part, and a left and right intermediate part. The front light of the present invention is a concept including a headlight, and in the case of an agricultural machine without a pretreatment unit such as a tractor, it is preferable to adjust the irradiation direction of the headlight and the rotation of the handle.

It is a schematic perspective view of the combine which concerns on 1st Embodiment. It is a perspective view of a transmission lever. It is the side view which made some structures into blocks. It is a perspective view which shows the drive form and operation means of a front light. It is a figure which shows 2nd Embodiment. It is a figure which shows 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Main-body part 3 Cutting part 11 Handle 13b Subtransmission lever for switching to the subtransmission means for driving | running | working on a road 14 Front frame (front cover) which comprises a cutting part
Reference numeral 17 Front light 27 Control unit 33 First motor for swinging and rotating the front light 34 Second motor for horizontally rotating the front light 35 Cross-operating lever as an example of manual operation means

Claims (5)

A riding type farm working machine provided with a front light that illuminates the front of a vehicle body having a cockpit,
The front light is attached to the vehicle body in a state where the irradiation direction can be changed in the vertical direction, the horizontal direction, or the vertical and horizontal directions.
Riding type farm work machine. A manual operation means for adjusting the irradiation direction of the front light is provided in a part of the vehicle body that can be reached by the operator seated in the cockpit,
The riding type agricultural working machine according to claim 1. The vehicle body is composed of a main body portion having a crawler and a cockpit, and a cutting portion arranged to be adjustable in height at a front portion thereof, and the front light is provided in the cutting portion.
The riding type combine as a riding type farm work machine according to claim 1 or 2. While the traveling speed change mechanism can be switched between a cutting operation mode and a road traveling mode by lever operation,
The front light can be switched between an automatic variable mode in which the irradiation direction is directed to the steering direction of the traveling body and a fixed mode in which the irradiation direction does not change even when the steering is steered. It is set to switch to the automatic variable mode when the speed change mechanism enters the road running mode with the power ON.
The riding type combine machine as a riding type farm work machine according to claim 3. It has a follow-up mode that changes the front light irradiation direction by following the rotation of the handle or others, and a fixed mode in which the front light irradiation direction is fixed at a constant level, and a switch that switches between the two modes is provided in the driver's seat. Yes,
The riding type agricultural working machine according to any one of claims 1, 3, and 4.

Images