Work vehicles

Abstract

To solve the problem that in a tractor in which an air conditioning unit is mounted on a cabin, the air conditioning unit is arranged at a lower side of a seat in the cabin and an air-conditioning duct and the like is arranged from the lower side of the seat, so that a living space of the cabin becomes narrow; and provide a work vehicle having a cabin securing a wide living space.SOLUTION: A work vehicle comprises: a front duct 33F which guides air-conditioning air discharged from an air conditioning unit 30 mounted at one of right and left side on an upper side of a cabin 23 into a front part air outlet port 34a, 34b at a front side in the cabin 23 and a side part air outlet port 34c, 34d at the other side that is an opposite side to the side where the air conditioning unit 30 is mounted; and a rear duct 33R which guides the air-conditioning air into a side part air outlet port 34e at the side where the air-conditioning unit 30 is mounted in the cabin 23 and a rear part air outlet port 34f at a rear part side.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a work vehicle equipped with a cabin. [Background technology]

[0002] Conventionally, there is a tractor equipped with an air conditioning unit in the cabin in which the operator sits (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-224278 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, since the air conditioning unit is located below the seats in the cabin, locating the air conditioning ducts from below the seats results in a narrower living space in the cabin, which reduces the driver's ability to control the vehicle and makes the driver more likely to feel claustrophobic or oppressive, resulting in increased physical and mental fatigue.

[0005] The present invention has been made in consideration of the above, and provides a work vehicle equipped with a cabin that can ensure a spacious living space. [Means for solving the problem]

[0006] The first invention relates to a work vehicle equipped with a traveling device (4) and a cabin (23) in which a driver sits, and includes a front duct (33F) for guiding conditioned air discharged from an air conditioning unit (30) provided on one of the upper left and right sides of the cabin (23) to front air outlets (34a, 34b) on the front side of the cabin (23) and to side air outlets (34c, 34d) on the other left and right sides opposite to the side on which the air conditioning unit (30) is provided, and a rear duct (33R) for guiding the conditioned air to a side air outlet (34e) on the side on which the air conditioning unit (30) is provided in the cabin (23) and a rear air outlet (34f) on the rear side, and a front intake port (33Fa) of the front duct (33F) is wider than a rear intake port (33Ra) of the rear duct (33R), The conditioned air is guided through a rear duct (33R) to a storage chamber (32) for keeping PET bottles (30a, 30b), canned bottles, etc., cool and / or warm, and a rear air outlet (34f) is provided in the storage chamber (32); This work vehicle is characterized in that a storage compartment (32) is disposed on the rear side of the cabin (23), with its bottom positioned higher than the bottom of the air conditioning unit (30), a rear air outlet (34f) is provided on an opening / closing door (32a) of the storage compartment (32), and the opening / closing door (32a) of the storage compartment (32) is configured so that the upper side opens downward and forward on a pivot shaft provided at the bottom, and the storage compartment (32) and the rear air outlet (34f) are positioned rearward of the operator's seat (21). The second invention relates to a work vehicle equipped with a traveling device (4) and a cabin (23) in which a driver sits, and further includes a front duct (33F) for guiding conditioned air discharged from an air conditioning unit (30) provided on one of the upper left and right sides of the cabin (23) to front air outlets (34a, 34b) on the front side of the cabin (23) and side air outlets (34c, 34d) on the other left and right sides opposite to the side on which the air conditioning unit (30) is provided, and a rear duct (33R) for guiding the conditioned air to a side air outlet (34e) on the side on which the air conditioning unit (30) is provided in the cabin (23) and a rear air outlet (34f) on the rear side, and a front intake port (33Fa) of the front duct (33F) is wider than a rear intake port (33Ra) of the rear duct (33R), The conditioned air is guided through a rear duct (33R) to a storage chamber (32) for keeping PET bottles (30a, 30b), canned bottles, etc., cool and / or warm, and a rear air outlet (34f) is provided in the storage chamber (32); This work vehicle is characterized in that a storage space (32) is disposed behind a rear duct (33R) that is biased toward the interior side of the cabin (23) behind the air conditioning unit (30), and a position information acquisition device (31) that acquires position information of the vehicle is disposed in a space formed by the air conditioning unit (30) and the storage space (32) at a rear position within the left-right width of the air conditioning unit (30). The first invention related to the present inventionis a work vehicle equipped with traveling gear 4 and a cabin 23 in which a driver sits, and is provided with a front duct 33F that guides conditioned air released from an air conditioning unit 30 provided on one of the upper left and right sides of the cabin 23 to front air outlets 34a, 34b at the front side of the cabin 23 and side air outlets 34c, 34d on the other left and right side opposite the side on which the air conditioning unit 30 is provided, and a rear duct 33R that guides the conditioned air to a side air outlet 34e on the side on which the air conditioning unit 30 is provided in the cabin 23 and a rear air outlet 34f on the rear side, and a front intake port 33Fa of the front duct 33F is wider than a rear intake port 33Ra of the rear duct 33R.

[0007] The first invention related to the present invention According to the invention, since the air conditioning unit 30, the front duct 33F, the rear duct 33R and the plurality of air outlets 34a, 34b, 34c, 34d, 34e and 34f are provided at the upper part of the cabin 23, a spacious living space can be ensured within the cabin 23.

[0008] In addition, by making the front intake port 33Fa of the front duct 33F, which has a longer air blowing distance, wider than the rear intake port 33Ra of the rear duct 33R, which has a shorter air blowing distance, conditioned air can be sent evenly from the air conditioning unit 30 to the multiple air outlets 34a, 34b, 34c, 34d, 34e, and 34f around the cabin 23, the temperature inside the cabin 23 can be changed as evenly as possible, and an easy-to-work environment can be realized.

[0009] The second invention related to the present invention The rear duct 33R guides the conditioned air to a storage chamber 32 for keeping PET bottles 30a, 30b, canned bottles, etc., cool and / or warm, and a rear air outlet 34f is provided in the storage chamber 32. The first invention related to the present invention It is a work vehicle.

[0010] The second invention related to the present inventionAccording to the above, conditioned air is guided through rear duct 33R to storage compartment 32 which keeps PET bottles 30a, 30b, canned bottles, etc., cool and / or warm, and rear air outlet 34f is provided in storage compartment 32, so that storage compartment 32 can be positioned utilizing the guide path of the conditioned air, thereby ensuring a large living space in cabin 23.

[0011] The third invention related to the present invention In the storage compartment 32, the storage compartment 32 is disposed on the rear side of the cabin 23, the bottom of the storage compartment 32 is located above the bottom of the air conditioning unit 30, a rear air outlet 34f is provided on the opening / closing door 32a of the storage compartment 32, and the opening / closing door 32a of the storage compartment 32 opens downward toward the front on a pivot shaft provided at the bottom, and the storage compartment 32 and the rear air outlet 34f are located behind the operating seat 21. Second Invention Related to the Present Invention It is a work vehicle.

[0012] The third invention related to the present invention According to the invention, the storage 32 is disposed on the rear side of the cabin 23, and its bottom is positioned higher than the bottom of the air conditioning unit 30, so that a large living space can be secured within the cabin 23.

[0013] Furthermore, since the rear air outlet 34f is provided on the opening and closing door 32a, the space required for the air conditioner can be further reduced.

[0014] In addition, the opening and closing door 32a of the storage compartment 32 is configured so that the upper side opens downward toward the front on a pivot axis provided at the bottom, and the storage compartment 32 and the rear air outlet 34f are positioned rearward of the operator's seat 21, so that conditioned air can be sent to the rear of the operator's seat 21, improving the comfort of the cabin 23. Even if the opening and closing door 32a opens unintentionally and the PET bottles 30a, 30b etc. inside fall out, they are positioned so that they are unlikely to hit the pilot seated in the operator's seat 21, ensuring safety.

[0015] The fourth invention related to the present invention A storage 32 is disposed behind a rear duct 33R biased toward the interior side of the cabin 23 behind the air conditioning unit 30, and a position information acquisition device 31 for acquiring the position information of the aircraft is disposed in a space formed by the air conditioning unit 30 and the storage 32 at a rear position within the left-right width of the air conditioning unit 30. The second invention related to the present invention It is a work vehicle.

[0016] The fourth invention related to the present invention According to this, the air conditioning unit 30, the rear duct 33R, the storage 32 and the position information acquisition device 31 can be arranged compactly by utilizing the upper space of the cabin 23, thereby ensuring a spacious living space inside the cabin 23.

[0017] Fifth Invention Related to the Present Invention The bottle storage 32 has a recess 32c on the inner bottom surface thereof to prevent the bottle 30a from rolling, and a space 25a is provided between the storage 32 and the cabin roof 25. Any one of the second to fourth inventions related to the present invention It is a work vehicle.

[0018] Fifth Invention Related to the Present Invention According to the above, a recess 32c for preventing the bottle 30a from rolling is provided on the inner bottom surface of the storage 32, so that the stored bottle 30a can be prevented from rolling due to movement or vibration of the aircraft, and can be prevented from falling into the cabin 23 when the opening and closing door 32a is pushed open.

[0019] In addition, since a space 25a is provided between the storage facility 32 and the cabin roof 25, the heat of the cabin roof 25 is not directly transferred to the storage facility 32.

[0020] The sixth invention related to the present invention The monitor 35 is disposed in a portion of the cabin 23 that has been widened by curving the front duct 33F, and the front air outlets 34a and 34b located above the windshield 28 blow conditioned air toward the bottom of the windshield 28. Any one of the second to fourth inventions related to the present invention It is a work vehicle.

[0021] The sixth invention related to the present invention According to the above, the monitor 35 is disposed in a portion of the cabin 23 that has been enlarged by curving the front duct 33F, thereby making it possible to secure a large living space in the cabin 23 and to place the monitor 35 in a location that is easy to see, thereby enabling efficient work.

[0022] In addition, the front air outlets 34a, 34b located at the top of the windshield window 28 blow out conditioned air toward the bottom of the windshield window 28, which also serves as an anti-fogging function (defroster) for the windshield window 28 to prevent a decrease in visibility.

[0023] The seventh invention related to the present invention The cabin roof 25 is protruded forward of the windshield window 28 at the front of the cabin 23, and the wiper 40 of the windshield window 28 is stored under the front protruding portion of the cabin roof 25 when not in operation. Any one of the second to fourth inventions related to the present invention It is a work vehicle.

[0024] The seventh invention related to the present invention According to this, the cabin roof 25 protrudes forward of the windshield window 28 at the front of the cabin 23, and the wipers 40 of the windshield window 28 are stored under the front protruding portion of the cabin roof 25 when not in operation, thereby improving forward visibility. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a left side view of a combine harvester according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a right side view of the combine harvester according to the embodiment of the present invention. [Diagram 3] 1 is a plan view of a combine harvester according to an embodiment of the present invention. FIG. [Figure 4] 1 is a plan cross-sectional view of a cabin of a combine harvester according to an embodiment of the present invention. [Diagram 5] FIG. 2 is a right-side cross-sectional view of a cabin of a combine harvester according to an embodiment of the present invention. [Figure 6] 1 is a front cross-sectional view of a main part of a cabin of a combine harvester according to an embodiment of the present invention. [Figure 7] 1 is a right-side cross-sectional view of a main part of a cabin of a combine harvester according to an embodiment of the present invention. FIG. [Figure 8] 1 is a cross-sectional view for explaining the operation of a hot and cold storage unit of a combine harvester according to an embodiment of the present invention. FIG. [Figure 9]1 is a front cross-sectional view of a main part of a cabin of a combine harvester according to an embodiment of the present invention. [Figure 10] 1 is a bottom cross-sectional view of a cabin of a combine harvester according to an embodiment of the present invention. FIG. [Figure 11] 1 is a front cross-sectional view of a main part of a cabin of a combine harvester according to an embodiment of the present invention. [Figure 12] 1 is a right-side cross-sectional view of a main part of a cabin of a combine harvester according to an embodiment of the present invention. FIG. [Figure 13] 1 is a left side cross-sectional view of a main part of a cabin of a combine harvester according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] A combine harvester 1, which is an example of a work vehicle according to an embodiment of the present invention, will be described below with reference to the attached drawings. In order to facilitate understanding, the directions are conveniently indicated as the front side, the rear side, the right hand side, and the left hand side as seen from the operator, but the configuration is not limited to these.

[0027] <Overall configuration of combine harvester> As shown in Figures 1 to 3, the combine harvester 1 has a traveling device 4 on the lower side of a chassis 2, on which a pair of left and right traveling crawlers 3 are stretched, which travel on the soil surface, and on the left and right sides of the chassis 2, a threshing device 6 that threshes and sorts the stalks that are clamped and transported by a feed chain 5, a grain tank 7 as a storage device for temporarily storing the grains, and a grain discharging auger 8 that discharges the grains stored in the grain tank 7 outside the machine are mounted, and a straw waste processing device 9 is mounted on the rear end of the threshing device 6. The grain discharging auger 8 is raised and lowered by operating an auger lifting cylinder when discharging grains.

[0028] A harvesting device 15 having a grass dividing body 11 that divides uncut stalks from the front end side, a raising section 12 that raises the divided stalks, a cutting blade section 13 that cuts the raised stalks, and a supply adjustment transport section that rakes in the cut stalks and adjusts the handling depth during transport and hands them over to the feed chain 5 is suspended from the front end of the chassis 2 in front of the threshing device 6 so that it can be freely raised and lowered relative to the soil surface by a harvesting lifting cylinder.

[0029] An operating device for controlling the operation of the combine 1 and an operating seat 21 where an operator sits are provided at the upper rear of the harvesting device 15, an engine 22 is mounted below the operating seat 21, the grain tank 7 is positioned at the rear, and a cabin 23 is provided to cover the operating device and operating seat 21, and the traveling device 4, threshing device 6, harvesting device 15, operating device, engine 22, cabin 23, etc. are mounted on the chassis 2 of the combine.

[0030] In addition, the monitor 35 installed in the cabin 23 displays a grain tank full alarm when the full sensor detects that the grain tank 7 is full of grain, a fuel low alarm when the fuel low sensor detects that there is little fuel remaining in the fuel tank, and various other support messages from the control device.

[0031] The operating device is equipped with various operating tools such as a main speed change lever that operates a speed change actuator that switches between forward / reverse travel and stopping and switches the main speed change when operated forward / reverse by an operator seated in the operating seat 21, a left / right traveling actuator that operates the left / right side clutches and left / right side brakes of the left / right traveling crawlers 3, 3 when tilted left / right to perform left / right steering when traveling straight and turning in various turning modes, and a steering lever that operates the harvesting lifting cylinder when operated forward / backward to raise and lower the harvesting device 15, a harvesting / threshing lever that operates the harvesting / threshing clutch actuator to turn the drive of the harvesting device 15 and the threshing device 6 on and off, an auger operating lever that moves the position of the discharge outlet 8a at the tip of the threshing auger 8 in the vertical direction by operating the auger lifting cylinder and in the horizontal direction by operating the left / right turning actuator, and an auger drive switching lever that operates the auger drive electromagnetic clutch that turns the drive of the threshing auger 8 on and off to discharge the grains in the grain tank 7 out of the machine from the discharge outlet 8a.

[0032] <Cabin 23> As shown in Figures 1 to 3, the cabin 23 is configured in a box shape with a cabin roof 25 provided on the upper part of a cabin frame 24 whose base is fixed to the chassis 2, and is equipped with a door 26 that opens and closes at the front and has a right glass window 26a on the right side, a left glass window 27 on the left side, a windshield window 28 on the front side, and a rear glass window 29 on the rear side.

[0033] As shown in Figures 4 to 7, an air conditioning unit 30 is provided in the central front-to-rear position on the upper left side of the cabin 23, and a GNSS unit 31 as a position information acquisition device and a hot / cold storage unit 32 as a storage unit for keeping PET bottles 30a, 30b, canned bottles, etc. cool and warm are provided behind the air conditioning unit 30.

[0034] The GNSS unit 31 is arranged within the left-right width of the air conditioning unit 30, and the hot / cold storage unit 32 is arranged in a position where its left side overlaps with the right side of the air conditioning unit 30.

[0035] Furthermore, by arranging the GNSS unit 31 within the front-to-rear width of the hot / cold storage unit 32, it can be arranged without protruding rearward from the cabin 23.

[0036] Therefore, the air conditioning unit 30, the GNSS unit 31 and the hot / cold storage 32 can be arranged compactly in the upper left space inside the cabin 23.

[0037] In addition, the GNSS unit 31 and the hot / cold storage unit 32 are placed by utilizing the dead space behind the air conditioning unit 30, and the air conditioning unit 30 and the hot / cold storage unit 32 are positioned so that they overlap in the left-right direction, so that the space within the cabin 23 can be utilized effectively and the unit is prevented from protruding significantly into the living space within the cabin 23 or outside the cabin 23.

[0038] Furthermore, by providing the GNSS unit 31 inside the cabin 23, the appearance is improved.

[0039] The bottom surface of the GNSS unit 31 is configured to be higher than the bottom surface of the hot / cold storage unit 32, improving rear visibility.

[0040] The GNSS unit 31 is disposed protruding to the left of the left end of the operator seat 21, ensuring a spacious interior space.

[0041] A front duct 33F is extended from the front right side of the air conditioning unit 30 toward the upper part of the cabin 23 toward the front, then curved (detouring) to protrude to the left in front of the air conditioning unit 30, and then extended from the left side to the right side of the front part of the cabin 23, and further extended rearward on the right side of the cabin 23 to the right side of the operator's seat 21.

[0042] The front duct 33F is provided with left and right front air outlets 34a, 34b at the front part of the cabin 23, and further provided with front and rear right air outlets 34c, 34d at the right part of the cabin 23 as side air outlets.

[0043] The left and right front air outlets 34a, 34b provided at the front inside the cabin 23 are configured to blow out conditioned air downward, and also serve as an anti-fogging function for the windshield window 28 (defroster).

[0044] A monitor 35 is disposed in a portion where the front left portion of the front duct 33F is curved (detouring) to increase the interior space of the cabin 23.

[0045] The monitor 35 is attached so as to be embedded into the interior side of the interior panel 36, and has a good appearance with a sense of unity as if it were embedded in the interior panel 36.

[0046] In addition, the monitor 35 is positioned above the underside of the interior panel 36 to prevent light reflection, and is located to the left of the rearview mirror (or a rearview monitor) 37 located in the center of the front left and right, making it easy for the operator seated in the operating seat 21 to see.

[0047] In addition, a rear duct 33R is extended from the rear right side of the air conditioning unit 30 in a bifurcated manner toward the front and rear at the upper part of the cabin 23, and a left front air outlet 34e is provided as a side air outlet at the part where the rear duct 33R extended toward the front reaches the left side of the operator's seat 21, and the end extended toward the rear opens at the top of the hot and cold storage cabinet 32 ​​to spray conditioned air into the hot and cold storage cabinet 32. In addition, a left rear air outlet 34f is provided as a rear air outlet on the opening and closing door 32a, and conditioned air is blown out to the rear of the operator's seat 21 to condition the back of the pilot.

[0048] The front intake port 33Fa at the base of the front duct 33F connected to the front side of the right side of the air conditioning unit 30 is wider than the rear intake port 33Ra at the base of the rear duct 33R connected to the rear side of the right side of the air conditioning unit 30.

[0049] Therefore, the front duct 33F is a long duct that runs from the left to the right through the front inside the cabin 23, in which the four left and right front air outlets 34a, 34b and the front and rear right air outlets 34c, 34d are provided, but a sufficient volume of conditioned air can be secured from the air conditioning unit 30 through the wide front intake port 33Fa, allowing for good air conditioning.

[0050] In addition, the rear duct 33R has a relatively short path for blowing out conditioned air from the left front air outlet 34e near the air conditioning unit 30 and the left rear air outlet 34f via the hot / cold storage unit 32, so that a sufficient air conditioning effect can be obtained even through the narrow rear intake port 33Ra from the air conditioning unit 30.

[0051] In addition, conditioned air is blown from the air conditioning unit 30 through the rear duct 33R to the hot / cold storage 32, and fresh conditioned air is blown into the hot / cold storage 32 and then blown out from the left rear air outlet 34f, so that the inside of the hot / cold storage 32 can always be cooled or heated with fresh conditioned air.

[0052] In addition, conditioned air is discharged from the air conditioning unit 30 through the rear duct 33R to an upper position inside the hot / cold storage unit 32 and then discharged from the lower left rear air outlet 34f into the cabin 23, thereby improving the cooling and heating efficiency of the hot / cold storage unit 32.

[0053] Furthermore, since the left rear air outlet 34f is provided on the door 32a of the hot / cold storage 32, it can be arranged without providing a separate space for the outlet, resulting in a simple and inexpensive configuration.

[0054] The front duct 33F and the rear duct 33R are integrally formed from synthetic resin. Although the ducts are separate front and rear, by forming them integrally, the number of parts does not increase and manufacturing costs can be reduced.

[0055] The bottom surface of the hot / cold storage 32 is disposed higher than the bottom surface of the air conditioning unit 30, ensuring a large space inside the cabin 23.

[0056] The hot / cold storage 32 is disposed in the upper left rear part of the cabin 23 and does not obstruct the forward visibility of the operator seated in the operator's seat 21.

[0057] The hot / cold storage 32 is disposed behind the operation seat 21. Therefore, even if the plastic bottles 30a, 30b, etc. in the hot / cold storage 32 fall, they will not hit the operator sitting in the operation seat 21.

[0058] The hot / cold storage 32 is disposed near the backrest of the operator's seat 21. Therefore, the hot / cold storage 32 is not far from the operator's seat 21, which is the pilot's seat, and is therefore easy to use.

[0059] The door 32a of the hot / cold storage 32 has a pivot shaft in the front-rear direction at the bottom end and is configured so that the top opens downward toward the front, so that the plastic bottles 30a, 30b, etc. placed inside will not fall out even if the door 32a is opened. In addition, a hook 32b that can be operated from the outside is provided at the top of the door 32a to keep it closed.

[0060] Hoses 30c of the air conditioning unit 30 are routed below the hot / cold storage unit 32, making effective use of the space below the hot / cold storage unit 32.

[0061] A left rear glass window 27a disposed behind the left glass window 27 is provided up to the bottom surface of the hot / cold storage unit 32, improving visibility to the left rear.

[0062] As shown in FIG. 8, the hot / cold storage 32 can accommodate two 500 ml plastic bottles 30a horizontally, or three 350 ml plastic bottles 30b vertically.

[0063] As shown in FIG. 9, the hot / cold storage 32 has a recess 32c on the inner bottom surface thereof for preventing a 500 ml plastic bottle 30a from rolling when stored horizontally.

[0064] A space 25a is provided between the upper surface of the hot / cold box 32 and the cabin roof 25, so that the temperature of the cabin roof 25 is not directly transferred to the hot / cold box 32.

[0065] As shown in FIG. 10, the base of the mounting portion 35a of the monitor 35 is mounted in a monitor mounting hole 35b provided on the underside of the interior panel 36, providing a neat appearance.

[0066] The hot / cold storage 32 has its bottom attached to a cold storage attachment hole 32d provided on the underside of the interior panel 36, giving it a neat appearance.

[0067] In the above embodiment, an example of a hot / cold storage cabinet 32 ​​is shown as a storage cabinet, but it may also be a cold storage cabinet that functions using cold air from the air conditioning unit 30, or a warm storage cabinet that functions using hot air from the air conditioning unit 30.

[0068] In summary, by providing the air conditioning unit 30, the front duct 33F, the rear duct 33R and the multiple air outlets 34a, 34b, 34c, 34d, 34e, and 34f at the top of the cabin 23, a spacious living space can be ensured within the cabin 23.

[0069] In addition, by making the front intake port 33Fa of the front duct 33F, which has a longer air blowing distance, wider than the rear intake port 33Ra of the rear duct 33R, which has a shorter air blowing distance, conditioned air can be sent evenly from the air conditioning unit 30 to the multiple air outlets 34a, 34b, 34c, 34d, 34e, and 34f around the cabin 23, the temperature inside the cabin 23 can be changed as evenly as possible, and an easy-to-work environment can be realized.

[0070] In addition, the rear duct 33R guides the conditioned air to the hot / cold storage 32 that keeps PET bottles 30a, 30b, canned bottles, etc., cool or warm, and a rear air outlet 34f is provided in the hot / cold storage 32, so that the hot / cold storage 32 can be positioned utilizing the guide path of the conditioned air, thereby ensuring a large living space in the cabin 23.

[0071] In addition, since the hot / cold storage 32 is disposed on the rear side of the cabin 23 and its bottom is positioned higher than the bottom of the air conditioning unit 30, a large living space can be secured within the cabin 23.

[0072] Furthermore, since the rear air outlet 34f is provided on the opening and closing door 32a, the space required for the air conditioner can be further reduced.

[0073] In addition, the door 32a of the hot / cold storage unit 32 is configured to open with the upper side facing downward toward the front on a pivot axis provided at the bottom, and the hot / cold storage unit 32 and the rear air outlet 34f are positioned rearward of the operation seat 21, so that conditioned air can be sent to the rear of the operation seat 21, improving the comfort of the cabin 23. Even if the door 32a opens unintentionally and the plastic bottles 30a, 30b etc. inside fall out, they are positioned so that they are unlikely to hit the operator seated in the operation seat 21, ensuring safety.

[0074] In addition, the air conditioning unit 30, rear duct 33R, hot / cold storage 32, and position information acquisition device 31 can be arranged compactly by utilizing the upper space of the cabin 23, thereby ensuring a spacious living space inside the cabin 23.

[0075] In addition, the monitor 35 is disposed in a portion where the interior space of the cabin 23 is enlarged by curving the front duct 33F, so that a large living space of the cabin 23 can be secured and the monitor 35 can be disposed in a place where it is easily visible, enabling efficient work.

[0076] In addition, the front air outlets 34a, 34b located at the top of the windshield window 28 blow out conditioned air toward the bottom of the windshield window 28, which also serves as an anti-fogging function (defroster) for the windshield window 28 to prevent a decrease in visibility.

[0077] As shown in FIGS. 11 to 13, a wiper 40 is provided on the upper outer surface of the windshield window 28.

[0078] The cabin roof 25 protrudes forward beyond a windshield window 28 at the front of the cabin 23 .

[0079] The wiper 40 has a typical configuration in which its base is supported so as to be freely rotatable on an offset plate 39 fixed to the front protrusion of the cabin roof 25, and when not in operation, it is stored in a horizontal position within the underside of the front protrusion of the cabin roof 25.

[0080] Therefore, since the wiper 40 is stored within the underside of the front protruding portion of the cabin roof 25 when not in operation, forward visibility is improved.

[0081] A wiper motor 41 that drives a wiper 40 is provided inside the front end of the cabin roof 25. The drive shaft 41a of the wiper motor 41 passes through the offset plate 39. By activating the rotary link mechanism of the wiper 40, the wiper 40 rotates back and forth between a horizontal inoperative position and a position facing vertically downward, thereby wiping off water droplets, dirt, etc. adhering to the outer surface of the windshield window 28.

[0082] A washer nozzle 42 is provided in the center of the left and right of the offset plate 39, and a washer pump is operated by operating an operating device to spray washing water onto the outer surface of the windshield window 28. [Explanation of symbols]

[0083] 4 Running gear 21 Control seat 23 Cabin 25 Cabin roof 25a Space 28 Windshield Window 30 Air Conditioning Unit 30a Plastic bottle 30b Plastic bottle 31 Location information acquisition device (GNSS unit) 32 Storage (warm / cold) 32a Opening and closing door 32c Recess 33F Front Duct 33Fa Front intake 33R Rear duct 33Ra Rear intake 34a Front air outlet (left front air outlet) 34b Front air outlet (right front air outlet) 34c Side air outlet (front right air outlet) 34d Side air outlet (rear right air outlet) 34e Side air outlet (front left air outlet) 34f Rear air outlet (left rear air outlet) 35 Monitor 40 Wiper

Claims

1. A work vehicle equipped with a running gear (4) and a cabin (23) in which a driver sits, comprising a front duct (33F) for guiding conditioned air discharged from an air conditioning unit (30) provided on one of the upper left and right sides of the cabin (23) to front air outlets (34a, 34b) on the front side within the cabin (23) and to side air outlets (34c, 34d) on the other left and right side opposite the side on which the air conditioning unit (30) is provided, and a rear duct (33R) for guiding the conditioned air to a side air outlet (34e) on the side on which the air conditioning unit (30) is provided within the cabin (23) and to a rear air outlet (34f) on the rear side, and a front intake port (33Fa) of the front duct (33F) is wider than a rear intake port (33Ra) of the rear duct (33R), The conditioned air is guided to a storage chamber (32) for keeping PET bottles (30a, 30b), canned bottles, etc., cool and / or warm through a rear duct (33R), and a rear air outlet (34f) is provided in the storage chamber (32); A work vehicle characterized in that a storage compartment (32) is disposed on the rear side of a cabin (23), with its bottom located higher than the bottom of an air conditioning unit (30), a rear air outlet (34f) is provided on an opening / closing door (32a) of the storage compartment (32), and the opening / closing door (32a) of the storage compartment (32) is configured so that the upper side opens toward the front and downward on a pivot shaft provided at the lower part, and the storage compartment (32) and the rear air outlet (34f) are located rearward of an operator's seat (21).

2. A work vehicle equipped with a running gear (4) and a cabin (23) in which a driver sits, comprising a front duct (33F) for guiding conditioned air discharged from an air conditioning unit (30) provided on one of the upper left and right sides of the cabin (23) to front air outlets (34a, 34b) on the front side within the cabin (23) and to side air outlets (34c, 34d) on the other left and right side opposite the side on which the air conditioning unit (30) is provided, and a rear duct (33R) for guiding the conditioned air to a side air outlet (34e) on the side on which the air conditioning unit (30) is provided within the cabin (23) and to a rear air outlet (34f) on the rear side, and a front intake port (33Fa) of the front duct (33F) is wider than a rear intake port (33Ra) of the rear duct (33R), The conditioned air is guided to a storage chamber (32) for keeping PET bottles (30a, 30b), canned bottles, etc., cool and / or warm through a rear duct (33R), and a rear air outlet (34f) is provided in the storage chamber (32); A storage space (32) is disposed behind a rear duct (33R) biased toward the interior side of the cabin (23) behind an air conditioning unit (30), and a position information acquisition device (31) for acquiring vehicle position information is disposed in a space formed by the air conditioning unit (30) and the storage space (32) at a rear position within the left-right width of the air conditioning unit (30).

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