JP2008118969A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To illuminate not only the front of a machine body of a combine but also a lateral area of a reaping section with sufficient brightness. <P>SOLUTION: In this combine 1, the reaping section 4 which is ascendably/descendably arranged at the front part of the machine body, is provided with headlights 27 for illuminating the front of the machine body, and a working lamp 28 for illuminating the working area of the reaping section 4 and its periphery. A light unit 36R, in which the headlight 27 and the working lamp 28 are provided in one casing 39R, is provided on the right side portion of the reaping section 4, and a light unit 36L, in which the headlight 27 and the working lamp 28 are provided in one casing 39L, is provided on the left side portion of the reaping section 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine equipped with a headlamp and a work lamp.

Conventionally, a combine equipped with a headlamp that irradiates the front so that the harvesting operation can be performed at dusk or at night is well known, and the headlamp is disposed at the front portion of the cutting portion. And was provided integrally.
JP 2006-115799 A

  However, since the headlamp illuminates the front of the aircraft, in the configuration in which only the headlamp is provided in the cutting part, the side of the cutting part cannot be illuminated with sufficient brightness and is difficult to see. For this reason, workability has deteriorated during work at dusk or at night.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  In other words, in the first aspect, the harvester is arranged to include a headlamp that illuminates the front of the fuselage and a worklamp that illuminates the work area of the harvester and its surroundings. A light unit having the headlamp and the work lamp in one housing is attached to each of the left and right sides of the cutting unit.

  In Claim 2, the said light unit is attached so that it may protrude from the each side part of the right and left both sides of the said cutting part to the side.

  In Claim 3, the housing | casing of the said light unit is comprised by the side view substantially triangle shape, providing the opening in the front surface of this housing | casing, forming the irradiation hole of the said headlamp, and opening in the side surface of this housing | casing Is provided to form an irradiation hole of the work lamp.

  According to a fourth aspect of the present invention, a discharge opening is provided on the lower surface of the light unit casing.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, not only the headlight can illuminate the front of the airframe but also the worklight can illuminate the front side of the airframe during work in the evening or at night, thereby improving workability. In addition, the head unit and the work lamp can be compactly configured with a small number of parts and attached to the cutting unit. Furthermore, since the headlamp and the work lamp have a unit configuration, the installation or removal work is simplified, and maintenance and replacement can be easily performed.

  In claim 2, the irradiation range can be widened in the left-right direction by the headlamp, and the irradiation range can be widened in the front-rear direction by the work lamp. Moreover, each side part of the right-and-left both sides of a cutting part can be manufactured at low cost as a simple structure.

  According to the third aspect, it is possible to irradiate the front with the headlamp and irradiate the side with the work lamp, and it is possible to irradiate a wide range with a compactly configured light unit.

  In claim 4, even if a part of the waste or dust enters the inside of the housing, it can be discharged to the outside without accumulating, and maintenance is simplified, and the headlamp and work lamp It is also possible to prevent a decrease in irradiation amount and poor contact between members.

  Next, embodiments of the invention will be described.

  1 is a side view showing the overall configuration of a combine according to an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a plan view of the front of the fuselage, FIG. 4 is a control block diagram, and FIG. FIG. 6 is a plan view of the driving operation unit, FIG. 7 is a side view, FIG. 8 is a plan view of a side column in the driving operation unit of another example, and FIG. 9 is attached to the side cover. FIG. 10 is a side view of the light unit, FIG. 11 is a side sectional view of the light unit, FIG. 12 is a side sectional view of the light unit of another embodiment, and FIG. 13 is a side cover. It is a perspective view which shows the structure of the attached left light unit.

  First, the overall structure of a combine according to an embodiment of the present invention will be described.

  As shown in FIGS. 1, 2, and 3, the combine 1 supports a body frame 2 with a crawler type traveling device 3, and power from an engine 10 mounted on the body frame 2 is transmitted via a transmission to the crawler type traveling device. 3 is driven to drive forward or backward. In this combine 1, a cutting part 4 is provided at the front part of the body frame 2 for cutting the grain straw and transporting it to the rear of the body frame, and threshing the harvested grain seeds from the cutting part 4 at the left and right front and rear middle parts of the body frame 2. A threshing unit 5 and a sorting unit 6 for sorting the grains threshed by the threshing unit 5 are arranged up and down. Behind the threshing unit 5, there is provided a slaughter processing unit 7 for discharging the cereal threshed by the threshing unit 5 to the outside as waste.

  A grain tank 8 is provided at the rear right side of the machine body frame 2 to store grains conveyed from the sorting unit 6 by a cereal cylinder. From the rear of the grain tank 8 upward, the grains in the grain tank 8 are removed from the machine body. A discharge auger 9 for discharging to the outside is disposed. The glen tank 8 is configured so that the front portion of the discharge auger 9 can be pivoted open to the side of the machine body with the vertical auger 9a as the center. In front of the grain tank 8 and in the front right side of the fuselage frame 2, there is provided an operation means 15 such as a steering handle 11, various operation levers and operation switches, a driving seat 12, and the like. A transmission and the engine 10 are disposed below the operation unit 15.

  As shown in FIG. 4, a working clutch 63 is provided between the engine 10 and the cutting unit 4 and the threshing unit 5 which are working machines. The work clutch 63 is for intermittently transmitting power from the engine 10 to the cutting unit 4 and the threshing unit 5, and transmits power from the engine 10 when in the engaged state, so that the cutting unit 4 and the threshing unit 5 are engaged. Is set to the operating state, and conversely, the cutting portion 4 and the threshing portion 5 are set to the operation stopped state without transmitting the power from the engine 10 by being in the cut state.

  In addition, the combine 1 is provided with a headlamp 27 that illuminates the front of the machine body, and a work lamp 28 that illuminates the work area of each part of the machine body and its surroundings. The headlamp 27 is provided on each of the left and right sides of the cutting unit 4. A plurality of work lamps 28 are provided as first to fifth work lamps 28A to 28E, of which the first work lamp 28A on the left in the traveling direction constitutes a light unit 36L with the left headlamp 27 to form the cutting unit 4. The second work lamp 28B is also disposed on the right side of the cutting unit 4 by constituting a light unit 36R with the right headlamp 27. The third work lamp 28C is provided above the left and right light units 36L and 36R of the cutting unit 4, in a dustproof cover 91 disposed in the upper part of the cutting unit 4 in this embodiment. The fourth work lamp 28D is provided above the handling port (threshing inlet) 77 of the threshing section 5, and the fifth work lamp 28E is provided at the tip of the discharge auger 9.

  Thus, the first work lamp 28A and the second work lamp 28B illuminate the left and right sides of the cutting unit 4, respectively, and the third working lamp 28C cuts from the front portion of the dust cover 78 that covers the transport mechanism 33 of the cutting unit 4 from above. The front of the part 4 is illuminated. The fourth work lamp 28D illuminates the lower conveying device and the vicinity of the handling port 77 from the front upper part of the threshing unit 5, and the fifth work light 28E illuminates the lower part of the discharge auger 9 from the lower part of the discharge port 79. . Thereby, it is possible to irradiate the work range seen from the operator sitting on the driver's seat 12 without excess or deficiency. In addition, when the cabin is provided in the driving operation unit 15, a work lamp is also provided at the front upper part of the cabin, and this is configured to illuminate the front of the cutting unit.

  Next, the configuration of lighting control of the headlamps 27 and 27 and the work lamp 28 will be described.

  In the combine 1, a control device 25 as a lighting control unit for the headlamps 27 and 27 and the first to fifth work lamps 71 to 75 is provided in the vicinity of the driving operation unit 15. As shown in FIG. 4, the control device 25 is connected to the headlamp 27 and the first to fifth work lamps 71 to 75 on the output side, and further to the headlamp 27 and the first or second work. It is connected to an actuator 47, which will be described later, provided in each of the left and right light units 36L and 36R provided with the lamps 71 and 72, the working clutch 63, the cutting unit lifting cylinder 26 serving as a lifting unit for the cutting unit 4, and the like. .

  On the other hand, the control device 25 turns on or off the headlamp switch 23, which is a headlamp lighting means for turning on or off the headlamp 27 on the input side, and the first to fifth work lights 28A to 28E. The operation operation unit 15 such as the work lamp switch 24 serving as a means, the work clutch lever 64 serving as an operation means for turning on and off the work clutch 63, and the reaping part lifting switch 19 serving as an operation means for extending and retracting the reaping part lifting cylinder 26. Are connected to various operating means provided on the road, and a road running detection means 22 for detecting the road running state of the traveling machine body.

  As shown in FIG. 4, the road travel detection means 22 includes a work clutch sensor 60 as a detection means for detecting the on / off state of the work clutch 63 and a travel speed as a travel speed detection means for detecting the travel speed of the traveling machine body. The sensor 62 and the cereal presence / absence sensor 61 as a cereal presence / absence detecting means for detecting the presence / absence of the cereal in the cutting unit 4 are provided. Alternatively, as shown in FIG. 5, there is provided a means for detecting the shift operation position of the sub-transmission device provided in the transmission, for example, an angle sensor 81 for detecting the operation position of the sub-transmission lever 16 serving as the operation means of the sub-transmission device. Has been.

  In the former configuration in which the road travel detection means 22 includes the work clutch sensor 60, the travel speed sensor 62, and the grain scum presence / absence sensor 61, the work clutch 63 is in a disengaged state (the reaping part and the threshing part are in an inoperative state). When the work clutch sensor 60 detects that the travel speed is equal to or higher than the set speed, the control device 25 determines that the road travel state is present. Furthermore, in addition to this, when the cereal presence / absence sensor 61 does not detect that the cereal is present in the cutting unit 4, it is possible to adopt a configuration in which the control device 25 determines that the road is running. By setting it as such a structure, the precision of judgment of the driving state on a road by the control apparatus 25 can be improved.

  On the other hand, in the latter configuration in which the road running detection means 22 is provided with the angle sensor 81, the angle sensor 81 detects that the operation position of the auxiliary transmission lever 16 is the road running position, that is, the transmission operation position of the auxiliary transmission. Is detected on the road, the control device 25 determines that the vehicle is on the road. In the present embodiment, the road travel detection means 22 includes a work clutch sensor 60, a travel speed sensor 62, and a cereal presence / absence sensor 61, and an angle sensor 81. Anything can be used as long as it can detect traveling on the road, and is not particularly limited.

  The control device 25 turns on the headlamp 27 when the headlamp switch 23 is turned on and turns off the headlamp when the headlamp switch 23 is turned off. The first to fifth work lamps 28A to 28E are turned on simultaneously when turned on, and the first to fifth work lights 28A to 28E are turned off simultaneously when turned off. The work lamp 28 is turned on. With this configuration, when the headlamp 27 and the work lamp 28 are lit by the operation of the headlamp switch 23 and the work lamp switch 24, as described above, on the road When it is determined that the vehicle is traveling, lighting control is performed so that the work lamp 28 is turned off while the headlamp 27 is turned on.

  Further, after the control device 25 determines that the vehicle is traveling on the road and turns off the first to fifth work lights 28A to 28E, and determines that the vehicle is not traveling on the road but is traveling on the road, the work light switch 24 is turned on in that state. When operated from OFF to ON, lighting control is performed to turn on the first to fifth work lights 28A to 28E again. Accordingly, the first to fifth work lights 28A to 28E can be arbitrarily turned on as required by the operator except when the control device 25 determines that the vehicle is traveling on the road.

  In other words, the combine 1 travels with the headlamp 27 and the work lamp 28 turned on, and when the control device 25 detects that the vehicle is traveling on the road, the work lamp 28 is turned off. When the operation is stopped or stopped, the work lamp 28 remains off. Therefore, when the work is resumed after running on the road, or when it is desired to check after the aircraft is stored, the work light 28 can be turned on again by turning on the work light switch 24 again. .

  Subsequently, the arrangement configuration of the headlight switch 23 and the work light switch 24 in the operation unit 15 will be described.

  As shown in FIGS. 3, 6, and 7, in the driving operation unit 15, a steering column 88 is erected in front of the driver seat 12, and the steering shaft of the steering handle 11 can be rotated on the steering column 88. It is supported by. Below the steering handle 11, operation panels 84L and 84R are provided so as to extend from the upper part of the steering column 88 to the left and right sides. Operation means such as operation switches and setting dials are provided on the left and right operation panels 84L and 84R. Is arranged. A display panel 83 is disposed at the center of the steering handle 11. A switch installation portion 88a is formed between the left and right operation panels 84L and 84R so as to slightly protrude rearward (driver's seat 12 side) from the upper portion of the steering column 88, and the headlight is placed on the switch installation portion 88a. A light switch 23 is arranged.

  A side column 20 is provided on the side of the steering handle 11 and the driver's seat 12 so as to extend in the front-rear direction. The work light switch 24, the work clutch lever 64, and the sub-column are provided on the side column 20. The transmission lever 16 is disposed together with the main transmission lever 21 and the like serving as operating means of the main transmission provided in the transmission. In the side column 20, the auxiliary transmission lever 16 and the main transmission lever 21 are arranged side by side with a lever guide groove on the front part thereof, and the work clutch lever 64 is arranged on the rear part with a lever guide groove. ing. Each of the levers 21, 16, 64 is supported by a fulcrum shaft extending in the left-right direction on the base end side in the side column 20 so as to be able to rotate back and forth, and is formed in a lever guide groove formed on the upper surface of the side column 20. It can be rotated in the front-rear direction along.

  Of the levers 21, 16, and 64, when the working clutch lever 64 is turned forward to the entering position 85 a set on the front side of the lever guide groove, the working clutch 63 is brought into the on state, and conversely the lever guide groove. The work clutch 63 is configured to be disengaged when it is rotated backward to the disengagement position 85b set on the rear side. During the turning operation, the clutch is engaged at a position 85a where the clutch is engaged, and is held in a state where the clutch is disengaged. A work light switch 24 is disposed in the vicinity of the work clutch lever 64.

  In this embodiment, since the driving operation unit 15 is configured by arranging a plurality of operation means and the display panel 83 in the vicinity of the steering handle 11 as described above, on the rear side of the side column 20 around the work clutch lever 64. Can secure a relatively large space. Therefore, the work light switch 24 is disposed in the space behind the work clutch lever 64. Thus, the headlight switch 23 is disposed in the vicinity of the steering handle 11 in front of the driver's seat 12 and the work light switch 23 is disposed on the side column 20 on the side of the driver's seat 12 so that the switches are separated from each other. Arranged at the position, the headlamp switch 23 and the work lamp switch 24 can be definitely operated quickly. The headlamp switch 23 and the work lamp switch 24 may be provided at positions opposite to those described above.

  Further, the work light switch 24 is a pushbutton switch with a lamp, and is configured to be turned on when the operator presses it to turn on the lamp, and to be turned off when pressed again to turn off the lamp. . That is, when the work lamp 28 is turned on, the lamp is turned on. When the work lamp 28 is turned off by pressing again, the lamp is also turned off. As a result, the operator can easily recognize the ON / OFF operation state of the work lamp switch 24, and the operating state of the operation lamp 28 can be reliably grasped by the operator 15. However, the type of switch is not limited.

  Further, in the configuration in which the driving operation unit 15 arranges the operation clutch lever 64, the auxiliary transmission lever 16, and the main transmission lever 21 on the side column 20, a number of operation means and display panels are arranged. Both the switch 23 and the work light switch 24 may be disposed on the side column 20. In such a case, for example, as shown in FIG. 8, in the side column 20, the display panel 83 and operation switches are disposed on the front portion thereof, and the main transmission lever 21 and the auxiliary transmission lever 16 are respectively connected to the lever guide. The working clutch lever 64 is arranged with a lever guide groove on the rear part.

  The headlight switch 23 is disposed between the display panel 83 and the main transmission lever 21 and the auxiliary transmission lever 16 on the front part of the side column 20, while the work light switch 24 is operated on the rear part of the side column 20. The clutch lever 64 is arranged so as to be arranged on the left side of the front portion of the lever guide groove. In particular, the work light switch 24 is located on the side farther from the driver seat 12 than the work clutch lever 64 and in the vicinity of the entry position 85 a of the work clutch lever 64. It is arranged so that it is not possible. In this way, when traveling on the road with the work clutch lever 64 in the off position 85b, the operator sets the work clutch lever 64 as far as possible from the work light switch 24 and changes the ON / OFF operation state of the work light switch 24 to the work clutch lever 64. It is configured so that it can be easily recognized without being disturbed.

  As described above, the cutting unit 4 in which the combine 1 is arranged to be movable up and down on the front part of the body includes the headlamp 27 that illuminates the front of the body, and the work light 28 that illuminates the work area of the cutting part 4 and its surroundings. In this combine 1, the headlamp 27, the work lamp 28, and the road running detection means 22 are connected to the control device 25, and the headlamp 27 and the work lamp 28 are turned on. When the control device 25 determines that the vehicle is traveling on the road based on the detection result of the road traveling detection means 22, the work lamp 28 is controlled to be turned off. In addition to illuminating the front of the aircraft with the lamp 27, the front side of the aircraft can be illuminated with the work lamp 28, and workability can be improved. In addition, when traveling on the road, the work light can be automatically turned off even when the light is on, preventing glare of the work light 28 due to forgetting to turn off, and avoiding adverse effects on the surroundings. Furthermore, useless energy consumption can be prevented.

  In the combine 1, the road travel detection means 22 travels with the on / off detection means (work clutch sensor 60) of the work clutch 63 provided between the engine 10 and the work implement (the mowing part 4 and the threshing part 5). When the road travel detection means 22 detects that the work clutch 63 is disengaged and the travel speed is equal to or higher than the set speed, the control device 25 is constituted by speed detection means (travel speed sensor 62). Since it is determined that the vehicle is traveling on the road, it is possible to reliably detect the road traveling state and turn off the work lamp 28 when shifting from the state in which the work lamp 28 is lit to the road traveling state in which lighting is unnecessary. it can.

  Further, in the combine 1, the road travel detection means 22 is configured by means (angle sensor 81) for detecting the shift operation position of the auxiliary transmission, and the shift operation position of the auxiliary transmission is at the road travel position. When the road running detection means 22 detects the road running condition, the control device 25 determines that the road running condition is present. The work lamp 28 can be turned off by reliably detecting the state.

  Further, in the combine 1, work light lighting means (work light switch 24) for turning on or off the work light 28 is connected to the control device 25, and the control device 25 determines that the vehicle is traveling on the road. When the vehicle is determined to be in a non-road running state, the work lamp 28 can be turned on again by operating the work lamp lighting means (work lamp switch 24). Thereafter, it becomes possible to turn on the work lamp 28 when traveling is stopped, and it becomes easier to perform work that requires illumination of the work lamp 28.

  In the combine 1, the work lamp lighting means (work light switch 24) is disposed on the side column 20 on the side of the driver's seat 12, and the headlamp lighting means for turning on or off the headlamp 27 ( Since the headlight switch 23) is disposed in the vicinity of the steering handle 11 in front of the driver's seat 12, the operation of the work light lighting means (work light switch 24) and the headlight lighting means (headlight switch 23) is incorrect. And can be done quickly.

  Next, the cutting unit 4 including the pair of left and right light units 36L and 36R including the headlamp 27 and the first or second work lamps 28A and 28B will be described.

  In the cutting unit 4, the cutting support frame 30 is pivotally supported by the upper end portion of the cutting support body 29 erected on the front part of the machine body frame 2 at the base end part, and can be moved up and down around the horizontal axis. It is said that. A cutting unit lifting cylinder 26 is interposed between the cutting support frame 30 and the body frame 2 as lifting means for the cutting unit 4, and the cutting support frame 30, that is, the cutting unit, is expanded and contracted by the cutting unit lifting cylinder 26. The part 4 is moved up and down with respect to the body frame 2.

  The reaping part raising / lowering cylinder 26 is configured to be expanded and contracted by operating a reaping part raising / lowering switch 19 provided on the steering handle 11, so that the reaping part 4 can be raised and lowered to an arbitrary height. Here, as described above, the cutting unit lifting cylinder 26 (actually a cylinder drive circuit) is connected to the control device 25 on its output side, and the cutting unit lifting switch 19 is connected to the control device 25 on its input side. Thus, the cutting unit 4 can adjust the cutting height and the rising height by appropriately adjusting the lifting position by the cutting unit lifting cylinder 26.

  Further, in the cutting unit 4, a weeding body 31 that separates the uncut grain culm is provided through a weeding frame at the front end of the cutting support frame 30, and the cereal after the weeding is placed above the weeding body 31. A corn straw raising body 32 for standing is provided. Further, a cutting body for scraping the stock side of the cedar after raising is provided behind the grain raising body 32, and a cutting blade 34 for cutting the stock of the cereal at the time of scrambling under the scratching body. Is provided, and a transport mechanism 33 for transporting the cut cereal after cutting to the vicinity of the handling port 77 of the threshing unit 5 is provided behind the scraper.

  Left and right side covers 35 </ b> L and 35 </ b> R are provided on both the left and right sides of the front part of the grain culvert raising body 32, the scraping body, and the transport mechanism 33. The left and right side covers 35L and 35R constitute the left and right side portions of the cutting unit 4, and are formed such that the front part is inclined toward the front of the machine body as the lower side. The right and left light units 36L and 36R having the headlamp 27 and the first or second work lamps 28A and 28B are located at the middle of the upper and lower portions of the covers 35L and 35R. It arrange | positions so that it may be located in the vicinity, and it can irradiate over the body front part side from the body front.

  Thus, the light units 36L and 36R are arranged in the middle of the upper and lower parts of the cutting unit 4 so as to be positioned near the tip height of the uncut grain culm in the field. As a result, the height of the ears of the cereals becomes approximately the same, and the irradiation light of the headlamp 27 and the work lamp 28 is not blocked by the ears to cause a shadow. Therefore, it is possible to ensure good visibility of the working area of the front of the machine body and the work area of the cutting unit 4 and the periphery thereof, and the visibility can be improved.

  For example, as shown in FIG. 3, the irradiation ranges of the left and right light units 36L and 36R include an irradiation range L1 and L3 that illuminate the front of the aircraft and an irradiation range L2 that illuminates the side of the front of the aircraft. Combined. Among the irradiation ranges, the irradiation range L1 is an irradiation range by the left and right headlamps 27, the irradiation range L2 is an irradiation range of each of the first work lamp 28A and the second work lamp 28B, and the irradiation range L3 is the first irradiation range L3. The irradiation range by the third work lamp 28C, and the irradiation range L4 is the irradiation range by the fourth work lamp 28D. Further, the irradiation range L1, the irradiation range L2, and the irradiation range L3 are partially overlapped, that is, the irradiation ranges of the left and right headlamps 27 and the corresponding work lamps 28A and 28B and the fourth work lamp 28D are partially. It sets so that it may overlap, and it can illuminate the periphery of the cutting part 4 completely.

  Between the upper ends of the left and right side covers 35L and 35R, an upper cover 17 that covers the upper part of the raising body 32 from the upper side is provided horizontally, and a dust-proof cover 91 that covers the transport mechanism 33 from the upper side is connected to the upper cover 17 at the rear. Is provided. The dust-proof cover 91 is for preventing dust coming out from the harvested cereal grains conveyed by the conveying mechanism 33 from being scattered to the operation unit 15 and is formed so that the front part faces slightly downward. And the 3rd work light 28C is provided in the front part of this dustproof cover 91, and the front of the cutting part 4 can be illuminated between right-and-left light units 36L and 36R.

  Next, the configuration of the light units 36L and 36R will be described in detail.

  As shown in FIGS. 2, 3, 9, and 13, the left and right light units 36 </ b> L and 36 </ b> R include the headlamp 27 and the first or second work lamps 28 </ b> A and 28 </ b> B in one housing 39 </ b> L and 39 </ b> R. And is attached to the left and right side covers 35L and 35R that are the left and right sides of the cutting unit 4. Here, the light units 36L and 36R protrude laterally from the side covers 35L and 35R so that the respective headlamps 27 and work lights 28A and 28B are located outside the mounting surfaces of the side covers 35L and 35R. It is attached to do.

  Further, the left and right light units 36L and 36R are disposed on the inner side of the left and right outermost sides of the aircraft. That is, the left light unit 36L is disposed on the inner side of the left side of the threshing unit 5 that is the outermost side of the left side of the body, such as the feed chain cover 93, and the right light unit 36R is the outermost side of the right side of the body. The engine room cover 95 on the right side of the seat 12 is disposed inside the fuselage.

  As described above, the light units 36L and 36R are arranged on the inner side of the outermost side of the airframe, so that the light units 36L and 36R are prevented from coming into contact with surrounding objects during driving or being damaged. it can. The left and right light units 36L and 36R may be arranged on both the left and right sides of the cutting unit 4, and may be provided in the side covers 35L and 35R, for example.

  Hereinafter, the configuration of the right light unit 36R disposed on the right side in the traveling direction of the aircraft will be described. The configuration of the left light unit 36L is omitted because the left and right light units 36R and 36L are substantially symmetrical as shown in FIG.

  As shown in FIGS. 9, 10, and 11, the light unit 36R includes a housing 39 having a substantially right-angled triangular shape in a side view, and the front surface of the light unit 36R is inclined downward toward the front of the fuselage as in the front part of the side cover 35R. The headlamp 27 is housed in the front part of the housing 39 and the second work lamp 28B is housed in the outer side part. An opening 40 serving as an irradiation hole for the headlamp 27 is provided on the front surface of the housing 39R, and a translucent cover 41 is mounted on the outside of the opening 40 so as to cover the opening 40. A headlamp 27 is disposed on the front of the machine body through the cover 41 through the opening 40.

  The headlamp 27 includes a reflector 51, a valve 53 supported by a valve support 52 positioned at the bottom (back bottom) of the reflector 51, and a front-view rectangular lens 54 attached to the front of the reflector 51. It consists of and. The lens 54 is disposed so as to be substantially perpendicular to the ground surface at a position facing the opening 40 in the housing 39. The upper end portion of the headlamp 27 protrudes slightly from the inclined opening 40. Therefore, the cover covering the headlamp 27 has a rounded convex shape so as not to contact the upper end portion of the headlamp 27. Is formed.

  A substantially trapezoidal opening 42 serving as an irradiation hole for the second work lamp 28B is provided on the outer side surface of the housing 39R, and the second work lamp 28B is disposed inside the opening 42. The side of the cutting unit 4 can be illuminated from 42. The second work lamp 28 </ b> B is formed along the shape of the substantially trapezoidal opening 42, and is supported by a reflector 55 having a recess 59 in the center and a valve support 56 positioned on the side of the reflector 55. And a lens 58 mounted so as to cover the recess 59 of the reflector 55.

  Further, as shown in FIG. 12, a discharge opening 43 can be provided on the lower surface of the housing 39R. The discharge opening 43 is formed so that the inside of the housing 39R is opened downward, and a gap is generated in the opening 40 part on the headlamp 27 side and the opening 42 part on the second work lamp 28B side, When a part of the waste or dust enters from the gap, these can be discharged outside without accumulating inside the housing 39R.

  In the light unit 36R, as shown in FIG. 11, the headlamp 27 is provided so as to be swingable in the vertical direction around a fulcrum shaft having an axis line in the horizontal direction in the housing 39R. When the cutting unit 4 moves up and down using the balance weight 46, it is configured to swing up and down in conjunction with this and maintain the irradiation direction in a substantially predetermined direction. However, the headlamp 27 is fixed in the housing 39R so that the housing 39R can be swung in the vertical direction and can be swung up and down together with the work lamp 28 to maintain the irradiation direction. Is also possible.

  That is, a pivot pipe 45 is provided in the left and right horizontal direction at the rear end portion of the headlamp 27, and this is externally fitted to a support shaft 44 fixed in the left and right horizontal direction on the inner surface of the housing 39R and is rotatably supported. Yes. The valve support 52 is fixed to the pivot pipe 45, and the balance weight 46 is fixed in a state of protruding downward. The weight of the balance weight 46 is set to be heavier than the weights of the valve support 52 and the valve 53. In addition, the structure which fixes the reflector 51 to the pivot pipe 45 instead of the valve support part 52 may be sufficient.

  In such a configuration, when the cutting unit 4 moves up and down, the balance weight 46 tends to be positioned vertically below the support shaft 44 due to its gravity, so that the balance weight 46 swings back and forth around the support shaft 44. At the same time, the headlamp 27 (bulb 53) is swung in the vertical direction. Thereby, the headlamp 27 is held at a substantially predetermined angle in conjunction with the lifting and lowering operation of the cutting unit 4, and the irradiation direction is maintained in a substantially predetermined direction.

  As described above, the light units 36L and 36R are configured so that the irradiation direction of the headlamp 27 can be maintained in a substantially predetermined direction. Irradiation in a fixed direction can be continued. Therefore, for example, even when the combine 1 turns while raising the cutting unit 4 on a headland or the like, the headlamp 27 maintains a substantially predetermined angle regardless of the change in the lifting position of the cutting unit 4. Since the irradiation direction can be maintained, it is possible to reliably irradiate the front of the aircraft, and it is possible to satisfactorily ensure traveling operability and safety.

  In addition, with only the above-described configuration, the headlamp 27 may vibrate due to the driving of the engine 10 or the transport mechanism 33 when the combine 1 is running or working, and the irradiation direction may be blurred, making it difficult to see the front of the aircraft. is there. In addition, depending on the slope where the vehicle travels, the headlight 27 may turn upward or too downward, and the irradiation direction may be inappropriate. Therefore, in the light unit 36R, fixing means for stopping the swinging of the headlamp 27 and fixing the irradiation direction is provided in the casing 39R except when the cutting unit 4 is raised and lowered.

  The fixing means includes a friction pad 49 and an actuator 47 that presses the friction pad 49 against the pivot pipe 45. The actuator 47 includes a cylinder, a motor, and the like, and is connected to the control device 25. When the headlamp 27 is turned on by the operation of the headlamp switch 23, the actuator 47, in this embodiment, the cylinder operates to extend the piston 48 under the control of the control device 25, whereby the friction pad 49 is expanded. Is supported by the pivot pipe 45 and the head lamp 27 is fixed so as not to rotate with respect to the casing 39R.

  In addition, when the cutting unit lifting switch 19 is operated in a state where the headlamp 27 is fixed by the fixing means, the actuator 47 is operated by the control of the control device 25 to contract the piston 48, thereby causing the friction pad 49. By releasing the pressing of the pivot pipe 45, the headlamp 27 can be swung freely, and can be swung so as to be directed in a substantially predetermined direction by the balance weight 46 in accordance with the raising and lowering of the cutting unit 4. It is like that. Thereafter, when the cutting unit lifting switch 19 is not operated, the actuator 47 is operated under the control of the control device 25 to fix the headlamp 27 again. Thus, the headlamp 27 is configured to be controlled by the control device 25 so as to always face a predetermined direction with a simple configuration.

  As described above, the light units 36L and 36R are provided with fixing means for changing the irradiation direction of the headlamp 27 and fixing it in an arbitrary direction. If it is shaken by vibrations that occur occasionally, or if the direction of irradiation of the headlamp 27 is maintained in a substantially predetermined direction, the direction of irradiation is arbitrarily changed and fixed in order to irradiate an appropriate direction. can do.

  Note that the configuration of the fixing means is not limited, and may be a configuration in which the balance weight 46 is fixed. Further, instead of providing a fixing means, the headlamp 27 is configured to be rotatable about a support shaft 44 by a motor, and the elevation angle of the cutting unit 4 is detected by a sensor so that the elevation state of the cutting unit 4 is determined. It is also possible to configure so that when the cutting unit 4 is turned up and down, the control device 25 drives the motor and the headlamp 27 illuminates a predetermined direction according to the turning. It is.

  Furthermore, since the second work lamp 28B is attached to the side surface, the irradiation direction hardly changes even when the cutting unit 4 is raised or lowered, but when the work lamp is attached to the front face, it is the same as the headlamp 27. It is also possible to illuminate a predetermined direction by constructing or integrating with the headlamp 27.

  As described above, the cutting unit 4 in which the combine 1 is arranged to be movable up and down on the front part of the body includes the headlamp 27 that illuminates the front of the body, and the work light 28 that illuminates the work area of the cutting part 4 and its surroundings. In this combine 1, the light units 36L and 36R provided with the headlight 27 and the work light 28 in one housing 39L and 39R are connected to the left and right sides of the cutting part 4 respectively. As a result, it is possible not only to illuminate the front of the aircraft with the headlight 27 but also to illuminate the side of the front of the aircraft with the work light 28 during work in the evening or at night, thereby improving workability. . Further, the light unit 36L / 36R can be configured compactly with a small number of parts by the headlamp 27 and the work lamp 28, and can be attached to the cutting unit 4. Furthermore, since the headlamp 27 and the work lamp 28 have a unit configuration, the installation or removal work is simplified, and maintenance and replacement can be easily performed.

  In the combine 1, the light units 36L and 36R are attached so as to protrude laterally from the left and right sides of the mowing unit 4, so that the irradiation range is widened by the headlamp 27 in the left-right direction. The irradiation range can be widened by the work lamp 28 in the left and right directions. Moreover, each side part (side cover 35L * 35R) of the right-and-left both sides of the cutting part 4 can be manufactured at low cost as a simple structure.

  Further, in the combine 1, the casings 39L and 39R of the light units 36L and 36R are formed in a substantially triangular shape when viewed from the side, and an opening 40 is provided in front of the casings 39L and 39R to irradiate the irradiation holes of the headlamp 27. Since the opening 42 is provided on the side surfaces of the housings 39L and 39R to form the irradiation hole of the work lamp 28, the front lamp 27 can irradiate the front and the work lamp 28 can irradiate the side. It becomes possible, and it becomes possible to irradiate a wide range with the compactly configured light units 36L and 36R.

  Further, in the combine 1, since the discharge opening 43 is provided on the lower surface of the casings 39L and 39R of the light units 36L and 36R, when a part of the waste or dust enters the casings 39L and 39R. However, it can be discharged to the outside without accumulating, maintenance is simplified, and it is possible to prevent a decrease in the amount of irradiation of the headlamp 27 and the work lamp 28 and poor contact between members.

The side view which showed the whole structure of the combine which concerns on one Example of this invention. Similarly front view. The top view of a body front part. Control block diagram. The control block diagram of another Example. The top view of a driving | operation operation part. Similarly side view. The top view of the side column in the driving | operation operation part of another Example. The perspective view which shows the structure of the right light unit attached to the side cover. The side view of a light unit. Side surface sectional drawing of a light unit. Side surface sectional drawing of the light unit of another Example. The perspective view which shows the structure of the left side light unit attached to the side cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 4 Cutting part 5 Threshing part 9 Discharge auger 11 Steering handle 22 Road travel detection means 23 Headlight switch 24 Work light switch 25 Control device 27 Headlight 28 Work light 28A First work light 28B Second work light 28C Third work light 28D Fourth work light 28E Fifth work light 35R Side cover 35L Side cover 36R Light unit 36L Light unit 39R Case 39L Case 40 Opening 42 Opening 43 Opening

Claims (4)

A combine provided with a headlamp that illuminates the front of the fuselage, and a worklight that illuminates the work area of the harvester and its surroundings, on a cutting part that is arranged to be movable up and down on the front part of the body,
A combine comprising: a light unit having the headlamp and the work lamp in a single housing attached to each side of the right and left sides of the cutting unit.   The combine according to claim 1, wherein the light unit is attached so as to protrude laterally from the left and right sides of the cutting unit.   The casing of the light unit is configured in a substantially triangular shape when viewed from the side, an opening is provided on the front surface of the casing to form an irradiation hole for the headlamp, and an opening is provided on the side of the casing to provide the work lamp. The combine according to claim 1 or 2, wherein the irradiation hole is formed.   The combine according to any one of claims 1 to 3, wherein a discharge opening is provided on a lower surface of the casing of the light unit.

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