JP2013241098A - Cabin of work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the following problem that, in such a configuration that an air conditioner duct is disposed bulging to under a cabin roof, an entire cabin becomes high for maintaining a cabin room to a predetermined height, and it is difficult to monitor an operation state of an external work machine and to perform operability etc. thereof, furthermore the monitoring and operability of a panel disposed in the cabin room are degraded.SOLUTION: Communicating parts between front ends of side ducts 4 which are disposed in both right and left side edges of a roof 1 in a cabin room 8 and along a front-rear direction and front ducts 3 communicate each other through bending ducts 6 which form narrowed passages 7 where duct cross-sectional areas are narrowed and which are bent in an L-character. Faces on the cabin room 8 inner side of the narrowed passages 7 of the bending ducts 6 are bent in a concave manner to form concave bent faces 9. In concave bent spaces 44 formed on the concave bent face side, an air conditioner operation panel 10 or an audio unit 11 is disposed on the cabin room 8 inner side of the bending duct 6.

Description

  The present invention relates to a cabin of a working machine vehicle such as a tractor or a combiner, and is configured to easily check an arrangement form of an operation panel or the like in a cabin roof on which an air conditioner duct is laid, thereby improving work operability.

  A technology that arranges an air conditioner at the rear end of the cabin roof, lays an air conditioner duct from the left and right outer sides of the cabin roof to the front side, and blows out air conditioning adjustment air from the air outlet arranged in this air conditioner duct (See, for example, Patent Document 1).

Japanese Patent No. 4681502

  In the form in which the air conditioner duct is bulged below the cabin roof, even if the air conditioner unit is installed at the rear part of the cabin roof, the cabin as a whole becomes higher in order to maintain the cabin room at a predetermined height, In addition, it is difficult to perform an inspection of the working state of the externally mounted working machine, operability, and the like, and the inspection or operability of the operation panel unit disposed in the cabin room is also reduced.

  According to the first aspect of the present invention, side ducts 4 are provided along the front-rear direction on the left and right sides of the roof 1 in the cabin room 8, and the side ducts 4 are provided at the rear end of the cabin roof 1. The rear duct 41 that communicates with the front duct 3 provided along the upper side of the windshield 5 is provided so as to communicate with the front duct 3. A constricted curved surface in which a narrowed passage portion 7 is formed and communicated via a bent duct 6 bent in an L shape, and the inner side surface of the cabin room 8 of the throttle passage portion 7 of the bent duct 6 is bent. The cabinet of the working vehicle in which the air conditioner operation panel 10 or the audio unit 11 is disposed inside the cabin room 8 of the bent duct 6 in the concavely curved space 44 formed on the side of the section 9. And configuration.

  The side duct 4 of the air conditioner is laid on the inner side of the cabin 8 of the cabin roof 1 along the left and right sides along the front-rear direction, and the front end of the side duct 4 extends along the inner upper side of the windshield 5. The adjusted air blown from the air conditioner unit 2 located on the rear side portion of the cabin roof 1 to the rear duct 41 by connecting the duct 3 with the bent duct 6 is arranged in the middle of the side duct 4. The air can be blown into the cabin room 8 from the air outlet 43 of the front duct 3 at the front end. At this time, the formation of the throttle passage portion 7 of the bent duct 6 maintains the appropriate air volume and pressure of the adjusted air blown from the outlet 42 of the side duct 4, and the concave space 44 portion inside the cabin room 8 of the bent duct 6 is By forming the concave curved surface portion 9, a deep concave space 44 is formed deeper to the front side. Since the air conditioning operation panel 10 or the audio unit 11 is disposed in the concave space 44, the driver seated in the cabin driver 8 and 19 driver seats in the center is operating while driving. The air conditioner operation panel 10 and the audio unit 11 can be easily operated while visually checking. In addition, the air conditioner operation panel 10 and the audio unit 11 are arranged in such a manner that the inner surface of the bent duct 6 is formed with a concave curved surface portion 9 which is deeply bent by the formation of the throttle passage portion 7. The arrangement space of the panel 10, the audio unit 11, etc. can be deeply and widely formed to the front side, and it is easy to set the visual interval with the driver.

  According to the second aspect of the present invention, the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel 12 is disposed on the cabin roof 1, and the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel is arranged. A spotlight 13 is provided for illuminating 12 or switching and illuminating.

  As described above, the air conditioning operation panel 10 and the audio unit 11 are provided in the bending space 44 of the bending duct 6 between the side duct 4 and the front duct 3 in the cabin roof 4 part, or the side duct 4 is provided with a cabin operation switch panel 12 or the like to make it easy for the driver in the driver's seat to visually check the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel 12 or the like. Can be accurately and easily visually observed by illuminating only the necessary area by lighting the spotlight 13 provided in the vicinity of the same cabin roof 1. In addition, the spotlight 13 and the air conditioner operation panel 10 illuminated by the spotlight 13 are disposed opposite to each other in the front-rear direction or the left-right direction at a region position approaching front-rear on the lower surface of the same cabin roof 1. Therefore, it is possible to effectively illuminate only the portion of the operation panel and secure a wide control area of the cabin room 8.

  According to a third aspect of the present invention, a concave curved surface portion 14 of the throttle passage portion 7 is formed on the back side of the side duct 4, and a cabin operation switch panel 12 is provided adjacent to the concave curved surface portion 14 of the side duct 4, A connecting harness 15 is disposed on the concave curved surface portion 14 of the side duct 4 on the back side of the cabin operation switch panel 12.

  The side duct 4 is formed with a throttle passage portion 7 in the space between the air outlets 42 for blowing out the adjusted air on the way, and discharges a predetermined amount or a predetermined pressure of the adjusted air from each air outlet 42. However, since the kayabine operation switch panel 12 is provided close to a part of the concave curved surface portion 14 of the side duct 4, the bulge amount of the cabin operation switch panel 12 into the cabin room 8 is reduced. Thus, the space in the upper part of the room near the cabin roof 1 part can be secured high and wide to facilitate the operation. Further, in order to arrange the back side portion of the cabin operation switch panel 12 close to the concave curved surface portion 14 of the side duct 4, a harness 15 of an operation switch connected to the back side of the cabin operation switch panel 12 is provided. Therefore, the installation space of the cabin operation switch panel 12 can be reduced and wiring can be easily performed.

  The invention according to claim 1 is a concave curved surface portion in which the bent inner surface on the cabin room 8 side of the bent duct 6 formed between the front end portion of the side duct 4 and the front duct 3 is configured as the throttle passage portion 7. 9 and the bent inner surface side of the bent duct 6, that is, the bent space 44 on the cabin room 8 side is formed deeper and wider to the front side, and the air conditioner operation panel 10 The audio unit 11 and the like can be installed, and it is easy to maintain an appropriate visual distance for the driver, and the space near the roof 1 in the upper part of the cabin room 8 is kept high and wide to facilitate driving operation. Can do. Moreover, it can be set as a small and simple cabin form.

  According to the second aspect of the present invention, the air conditioner operation panel 10, the audio unit 11, and the like are arranged in the bending space 44 of the bent inner side of the bent duct 6, or the cabin near the bent portion 14 of the side duct 4. Since the operation switch panel 12 is disposed, the spotlight 13 for illuminating the operation switch panel 12 is provided in the cabin roof 1 portion that is close to and opposed to the air conditioner operation panel 10, the audio unit 11, the cabin operation switch panel 12, and the like. Only the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel 12, which is a visual necessity portion, can be spot-lit partially by turning on the spotlight 13, and the overhead space in the cabin room 8 is high and wide. Maintain, visual check by lighting, switch, etc. It is possible to facilitate the operation.

  According to a third aspect of the present invention, a cabin operation switch panel 12 is provided adjacent to the concave curved surface portion 14 of the throttle passage portion 7 formed on the back side of the side duct 4 and connected to the operation switch of the cabin operation switch panel 12. Since the harness 15 is drawn out and wired through the concave curved surface portion 14, the cabin operation switch panel 12 is installed close to the concave curved surface portion 14 of the side duct 4, so that the cabin roof 1 portion is raised, A large overhead space can be formed so that the cabin can be easily operated, wiring can be easily laid, and damage to the wiring can be prevented.

The side view of a tractor cabin. The front perspective view of the cabin part. The top view of the cabin room part. The rear view. The perspective view inside the cabin room. The perspective view of the cabin room back surface part. The perspective view which shows the arrangement | positioning form of an air-conditioner unit and a cabin duct part. The perspective view at the time of seeing a cabin roof part from the lower side. The perspective view at the time of seeing a cabin roof back part from the upper side. The top view of a cabin floor part.

  Based on the drawings, a configuration in which the cabin 17 is mounted on the tractor vehicle body 16 is shown, and the cabin room 8 is configured by covering the upper periphery of the driver's seat 19 or the dashboard 20 on the floor 18 as the cabin room 8. is there. The cabin 17 has a floor 18 on which a driver's seat 19 is mounted at the bottom, a fender 22 that covers the upper part of the rear wheel 21 of the vehicle body 16, a step 23 formed outside the door opening, and the like. In the right-hand fender 22 portion of the driver's seat 19, operation lever mechanisms such as a joystick lever 48 for operating the work implement, an elevating lever 49, and a transmission lever 50 are disposed. Further, the upper portion of the cabin 17 forms a roof 1 in the form of a girder, sheet metal, or synthetic resin, and a pair of left and right fronts are provided between the front end of the floor 18 and the front end of the roof 1. A pillar 24 is provided, and a pair of left and right rear pillars 25 are provided between the rear end portion of the fender 22 and the rear end portion of the roof 1. Also, a mid-pillar 26 is provided between the front and rear intermediate portions of the left and right fenders 22 and the roof 1 portion, a door glass 32 for opening and closing the front door opening of the mid-pillar 26 is provided, and the rear side window is opened and closed. Side glass 27 is provided. Further, a windshield 5 is provided between the left and right front pillars 24, and an openable / closable rear glass 28 is provided between the left and right rear pillars 25 so that the outside of the cabin 17 can be easily seen through from the driver's seat 19.

  The vehicle body 16 has a configuration in which a front engine 29 is covered with a bonnet 30 and front wheels 31 are provided on both left and right sides thereof, and can be steered by a steering handle 47 disposed at the rear of the dashboard 20. In addition, a rotary tiller and a working machine such as a plow can be attached to the rear end portion of the vehicle body 16 via a lift link 46 to perform various farming operations.

  The cabin roof 1 is in the form of a double upper and lower cover plate made of sheet metal or a synthetic resin plate as described above, but the upper cover is formed on the upper side, and the inner ceiling portion of the lower cabin room 8 is placed inside. The cover 34 is formed in a substantially double ceiling form. The air conditioner unit 2 is supported and attached in a form protruding from the rear end of the cabin roof 1 to the rear upper part of the rear glass 28. The air conditioner unit 2 is composed of a sirocco fan 35, an evaporator 36, a heater 37, and the like, and sends out outside air inside and outside the cabin room 8 to the duct as adjusted air through the evaporator 36 and the heater 37. It is. The upper and lower surfaces of the air conditioner unit 2 are covered with rear covers 38 and 39 so as to be opened and closed.

  The air outlet unit 40 is provided with a blower opening 40 for sending the adjustment air at the center of the front end of the air conditioner unit 2, and the rear end of the cabin duct disposed in the cabin room 8 is connected to the blower opening 40. The cabin duct includes a rear duct 41 that branches from the air blowing port 40 to the left and right sides, a side duct 4 that receives the adjustment air sent from the rear duct 41 and guides it forward, and a bent duct 6 at the front end of the side duct 4. It is comprised from the front duct 3 etc. which are connected through this. Each side duct 4 is laid in a form along the front-rear direction on both the left and right sides of the roof 1 in the cabin room 8 to form a blow-out opening 42 that blows downward at an appropriate interval in the middle. A narrowing passage portion 7 having a narrowed air passage cross-sectional area is formed in the interval portion 42 so as to maintain the air volume or the air pressure of the adjusted air at each air outlet 42 at a predetermined value or more. The front duct 3 is located at the upper front end in the cabin room 8 and is formed to extend over the right and left sides at the upper end of the windshield 5. The bent duct 6 extends from the front end of the side duct 4. It is comprised by the substantially L-shaped curve thru | or a bending form through. The front duct 3 is formed with a blow-out port 43 for injecting air downward, and the bent duct 6 is formed with a throttle passage portion 7 inside the throttle passage portion 7, that is, the cabin room 8. The curved surface 9 is formed by remarkably bending the surface of the bent duct 6 facing the center. Then, a wide concave space 44 is formed on the inner side of the bent duct 6. Then, the air conditioner operation panel 10 for operating the air conditioner unit 2 and the like, the audio unit 11 and the like are disposed in the concave curved spaces 44 on both the left and right sides with their operation surfaces facing the driver seat 19 side.

  The space | interval part of the front duct 3 of the said right-and-left both sides is open | released over the width | variety suitably, and maintains a driver | operator's near field view wide. The front ducts of the side ducts 4 and the front ducts 3 are connected by a horizontal connecting rod 45, and the air conditioner operation panel 10, an audio unit 11 such as a radio, etc. are attached to the connecting rod 45.

  The air conditioner operation panel 10 is provided with an air conditioner switch, an air conditioner adjustment switch, an air outlet position switch, a dial, and the like. The cabin operation switch panel 12 has a room lamp 47, a work lamp, a wiper, and the like. Further, depending on the form of the working machine, switches for opening and closing the side glass 27 and the rear glass 28 of the cabin room 8 can be arranged. Further, the audio unit 11 is provided with a switch for turning on and off the sound output, an adjustment dial, and the like.

  Further, a concave curved surface portion 14 is appropriately formed on the upper side surface of the side duct 4 (see FIG. 6) to form a throttle passage portion 7, and a cabin is formed on the upper side surface portion of the concave curved surface portion 14. The operation switch panel 12 is adjacent to the back surface portion, the connection portion of the harness 15 connected to each operation switch 12 is positioned, and the harness 15 taken out from the connection portion is received on the upper surface of the concave curved surface portion 14. Further, wiring is performed from a position on the concave curved surface portion 14 toward a predetermined connecting portion.

  The spotlight 13 that illuminates the air conditioner operation panel 10, the audio unit 11, the cabin operation switch panel 12, and the like includes a lower side surface portion of the cabin roof 1 in the vicinity of the air conditioner operation panel 10 and the audio unit 11. It is provided in the side duct 4 part. Since the operation surface of the air-conditioner operation panel 10 or the audio unit 11 is provided so as to face the driver seat 19 on the rear side, the spotlight 13 has a cabin roof at a rear position or a lateral position thereof. 1 may be configured to irradiate. The room lamp 47 illuminates the cabin room 8 widely downward, but the spotlight 13 irradiates the operation panel 10 and the audio unit 11 on the opposite side in a concentrated manner, so it is effective even if the illumination output is reduced. Thus, efficient illumination can be performed and operability can be improved. Moreover, when the spotlight 13 is shared, or when irradiating by changing the irradiation direction, it is possible to provide a changeover switch so as to switch every illumination location, and the configuration can be simplified.

  Here, side ducts 4 along the front-rear direction are provided on the left and right sides of the roof 1 in the cabin room 8, and the side duct 4 is connected to a rear duct 41 communicating with the air conditioner unit 2 provided at the rear end of the cabin roof 1. The communication between the front duct 3 provided along the upper side of the windshield 5 and the front duct 3 is connected to the front duct 3 with a narrowed aperture that narrows the cross-sectional area of the duct. The passage portion 7 is formed and communicated via a bent duct 6 bent in an L shape, and is formed on the concave curved surface portion 9 side where the inner side surface portion of the cabin room 8 of the throttle passage portion 7 of the bent duct 6 is bent. The configuration of the cabin of the work vehicle in which the air conditioner operation panel 10 or the audio unit 11 is disposed in the inside of the cabin room 8 of the bent duct 6 in the concave curved space 44. That.

  The side duct 4 of the air conditioner is laid on the inner side of the cabin 8 of the cabin roof 1 along the left and right sides along the front-rear direction, and the front end of the side duct 4 extends along the inner upper side of the windshield 5. The adjusted air blown from the air conditioner unit 2 located on the rear side portion of the cabin roof 1 to the rear duct 41 by connecting the duct 3 with the bent duct 6 is arranged in the middle of the side duct 4. The air can be blown into the cabin room 8 from the air outlet 43 of the front duct 3 at the front end. At this time, the formation of the throttle passage portion 7 of the bent duct 6 maintains the appropriate air volume and pressure of the adjusted air blown from the outlet 42 of the side duct 4, and the concave space 44 portion inside the cabin room 8 of the bent duct 6 is By forming the concave curved surface portion 9, a deep concave space 44 is formed deeper to the front side. Since the air conditioning operation panel 10 or the audio unit 11 is disposed in the concave space 44, the driver seated in the cabin driver 8 and 19 driver seats in the center is operating while driving. The air conditioner operation panel 10 and the audio unit 11 can be easily operated while visually checking. In addition, the air conditioner operation panel 10 and the audio unit 11 are arranged in such a manner that the inner surface of the bent duct 6 is formed with a concave curved surface portion 9 which is deeply bent by the formation of the throttle passage portion 7. The arrangement space of the panel 10, the audio unit 11, etc. can be deeply and widely formed to the front side, and it is easy to set the visual interval with the driver.

  Further, the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel 12 is disposed on the cabin roof 1, and the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel 12 is illuminated, or A spotlight 13 is provided that is illuminated by switching operation.

  As described above, the air conditioning operation panel 10 and the audio unit 11 are provided in the bending space 44 of the bending duct 6 between the side duct 4 and the front duct 3 in the cabin roof 4 part, or the side duct 4 is provided with a cabin operation switch panel 12 or the like to make it easy for the driver in the driver's seat to visually check the air conditioner operation panel 10, the audio unit 11, or the cabin operation switch panel 12 or the like. Can be accurately and easily visually observed by illuminating only the necessary area by lighting the spotlight 13 provided in the vicinity of the same cabin roof 1. In addition, the spotlight 13 and the air conditioner operation panel 10 illuminated by the spotlight 13 are disposed opposite to each other in the front-rear direction or the left-right direction at a region position approaching front-rear on the lower surface of the same cabin roof 1. Therefore, it is possible to effectively illuminate only the portion of the operation panel and secure a wide control area of the cabin room 8.

  Further, a concave curved surface portion 14 of the throttle passage portion 7 is formed on the back side of the side duct 4, and a cabin operation switch panel 12 is provided adjacent to the concave curved surface portion 14 of the side duct 4. A connecting harness 15 is disposed on the curved surface portion 14 on the back side of the cabin operation switch panel 12.

  The side duct 4 is formed with a throttle passage portion 7 in the space between the air outlets 42 for blowing out the adjusted air on the way, and discharges a predetermined amount or a predetermined pressure of the adjusted air from each air outlet 42. However, since the kayabine operation switch panel 12 is provided close to a part of the concave curved surface portion 14 of the side duct 4, the bulge amount of the cabin operation switch panel 12 into the cabin room 8 is reduced. Thus, the space in the upper part of the room near the cabin roof 1 part can be secured high and wide to facilitate the operation. Further, in order to arrange the back side portion of the cabin operation switch panel 12 close to the concave curved surface portion 14 of the side duct 4, a harness 15 of an operation switch connected to the back side of the cabin operation switch panel 12 is provided. Therefore, the installation space of the cabin operation switch panel 12 can be reduced and wiring can be easily performed.

DESCRIPTION OF SYMBOLS 1 Cabin roof 2 Air conditioner unit 3 Front duct 4 Side duct 5 Windshield 6 Bending duct 7 Restriction passage part 8 Cabin room 9 Concave surface part 10 Air conditioner operation panel 11 Audio unit 12 Cabin operation switch panel 13 Spotlight 14 Concave surface part 15 Harness 17 Cabin 19 Driver's seat 41 Rear duct 42 Air outlet 43 Air outlet 44 Recessed space

Claims (3)

  An air conditioner unit (4) is provided in the cabin room (8) at the left and right sides of the roof (1) along the front-rear direction, and the side duct (4) is provided at the rear end of the cabin roof (1). 2) The rear duct (41) communicated with the portion and the front duct (3) provided along the upper side of the windshield (5) are provided to communicate with each other, and the front end portion of the side duct (4) The communicating portion with the front duct (3) forms a throttle passage portion (7) with a narrowed sectional area of the duct and communicates with the bent duct (6) via an L-shaped bent duct (6). ) Of the throttle passage (7) in the cabin room (8) and the concave curved space (44) formed on the concave curved surface (9) side of the inner side surface of the cabin (8), the cabin room ( 8) Air conditioning operation panel (1 ), Or work vehicle cabin, characterized by arranging the audio unit (11).   An air conditioning operation panel (10), an audio unit (11), or a cabin operation switch panel (12) is disposed on the cabin roof (1), and these air conditioning operation panel (10), audio unit (11), or cabin is arranged. The cabin of a work vehicle according to claim 1, wherein a spotlight (13) for illuminating or switching the operation switch panel (12) is provided.   A concave curved surface portion (14) of the throttle passage portion (7) is formed on the back side of the side duct (4), and adjacent to the concave curved surface portion (14) of the side duct (4), the cabin operation switch panel (12). The connecting harness (15) is arranged on the back side of the cabin operation switch panel (12) on the concave curved surface (14) of the side duct (4). Working vehicle cabin.

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