WO2014184891A1 - キャブ、及び作業車両 - Google Patents
キャブ、及び作業車両 Download PDFInfo
- Publication number
- WO2014184891A1 WO2014184891A1 PCT/JP2013/063518 JP2013063518W WO2014184891A1 WO 2014184891 A1 WO2014184891 A1 WO 2014184891A1 JP 2013063518 W JP2013063518 W JP 2013063518W WO 2014184891 A1 WO2014184891 A1 WO 2014184891A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air
- cab
- conditioning unit
- blowing
- duct
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00378—Air-conditioning arrangements specially adapted for particular vehicles for tractor or load vehicle cabins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00185—Distribution of conditionned air
- B60H2001/00192—Distribution of conditionned air to left and right part of passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
- B60H2001/00221—Devices in the floor or side wall area of the passenger compartment
Definitions
- the present invention relates to a cab and a work vehicle.
- the cab in a work vehicle such as a motor grader is provided with an air conditioning unit for cooling or heating the inside of the cab body as shown in Patent Document 1.
- the air conditioning unit cools the air in the cab body to generate cold air, and blows out the generated cold air from the outlet through the duct.
- the air conditioning unit can generate not only cold air but also hot air.
- An object of the present invention is to blow cool air or warm air from both sides to the driver while securing a space in the cab body.
- the work vehicle includes a cab body, a seat, an air conditioning unit, a first blowing unit, a second blowing unit, a distribution box, a first duct, and a second duct.
- the cab body has a floor portion.
- the seat is installed in the cab body.
- the air conditioning unit is disposed below the seat and on the floor portion.
- the first blowing section is arranged on the first side in the vehicle width direction in the cab body, and blows out air from the air conditioning unit.
- the second blowing section is arranged on the second side opposite to the first side in the cab body, and blows out air from the air conditioning unit.
- the distribution box has a box body.
- the box body is formed with an introduction port, a first blower port, and a second blower port.
- the introduction port opens toward the second side and introduces air from the air conditioning unit.
- the first blower opening opens toward the first side.
- the second blower opening opens downward.
- the first duct is connected to the first air outlet and supplies air from the air conditioning unit to the first blow-out portion.
- the second duct is connected to the second air outlet and extends toward the second side, and supplies air from the air conditioning unit to the second blowing section.
- the first blowing section blows air from the air conditioning unit from the first side in the vehicle width direction to the worker seated on the seat.
- the second blowing unit blows cold air or hot air from the second side opposite to the first side to the operator seated on the seat.
- the distribution box is arranged on the second side while supplying air from the air conditioning unit to the first blowing section arranged on the first side through the first air outlet opening toward the first side.
- the air from the air-conditioning unit is supplied to the second blow-out section that has been made through a second blower opening that opens downward.
- the distribution box supplies the air from the air conditioning unit to the second side through the second blower opening that opens downward, the installation space in the horizontal direction can be reduced.
- the 2nd duct which supplies the air from an air-conditioning unit to a 2nd blowing part from a 2nd ventilation opening is arrange
- the distribution box further includes a partition plate for restricting a flow path of air from the air conditioning unit in the box body.
- the air volume of the air from the air-conditioning unit supplied to the 1st blowing part and the 2nd blowing part can be adjusted with a partition plate, and eventually it blows off from the 1st blowing part and the 2nd blowing part.
- the air volume balance of the air from the air conditioning unit can be improved.
- the partition plate extends upward from the bottom surface of the box body, and surrounds the second air blowing port and opens toward the second side in plan view. Air from the air conditioning unit introduced into the box body from the introduction port tends to flow toward the first blower opening that opens at a position opposite to the introduction port. That is, the air volume from the air conditioning unit discharged through the first air outlet is larger than the second air outlet opening downward.
- the air-conditioning unit which guides the air from the air-conditioning unit which has entered from the introduction port to the second air blowing port and is discharged through the second air-blowing port by configuring the partition plate as described above. The air volume from the air can be increased. As a result, the air volume from the air conditioning unit discharged through the first air outlet and the air volume from the air conditioning unit discharged through the second air outlet can be made closer to each other.
- the partition plate is formed such that a gap is formed between the upper end and the ceiling surface of the box body. According to this configuration, even if the temperature of the air from the air conditioning unit sent from the air conditioning unit to the distribution box is uneven, the air is mixed in the distribution box through the above-described gap and the uniform temperature is maintained. The air from the air conditioning unit that has become can be discharged from the second air outlet or the like.
- the second duct extends below the floor portion. According to this configuration, the flow passage cross-sectional area of the second duct can be increased without reducing the space in the cab body.
- the second duct has a duct body and a heat insulating material covering the periphery of the duct body. According to this configuration, the temperature of the air from the air conditioning unit flowing in the duct body can be maintained constant by the heat insulating material.
- the first blowing part is arranged on either the right side or the left side of the sheet, and the second blowing part is arranged on either the right side or the left side of the sheet. According to this configuration, air from the air conditioning unit can be blown out from the left and right toward the worker.
- the box body further includes a third air outlet that opens toward the first side, and the partition plate partitions the first air outlet and the second air outlet in a plan view, and The second air outlet and the third air outlet are partitioned.
- the air volume from the air conditioning unit discharged through the first air outlet, the air volume from the air conditioning unit exhausted through the second air outlet, and the third air outlet can be made closer.
- the work vehicle further includes a connecting duct that connects the air conditioning unit and the inlet of the box body.
- a connecting duct that connects the air conditioning unit and the inlet of the box body.
- the work vehicle according to the second aspect of the present invention includes any of the cabs described above.
- air from the air conditioning unit can be blown to the driver from both sides.
- the perspective view of a motor grader The side view of a motor part radar.
- the perspective view of a cab. The perspective view of an air-conditioning subassembly.
- the rear view of a cab. The perspective view of the duct main-body part of a 2nd duct.
- FIG. 1 is an external perspective view of the motor grader 1
- FIG. 2 is a side view of the motor grader 1.
- “front” and “rear” mean the front and rear of the vehicle body 2. That is, in FIG. 2, the right side is “front” and the left side is “rear”.
- “right”, “left”, “upper”, and “lower” refer to directions based on the state of looking forward from the driver's seat, and are referred to as “vehicle width direction” and “left-right direction”. Is synonymous.
- the front-rear direction is indicated by the x axis
- the left-right direction is indicated by the y-axis
- the up-down direction is indicated by the z-axis.
- the motor grader 1 includes a vehicle main body 2, a work implement 3, and a cab 4.
- the motor grader 1 can perform leveling work, snow removal work, light cutting, or material mixing by the work machine 3.
- the vehicle body 2 includes a rear vehicle body 21 and a front vehicle body 22.
- the rear vehicle body 21 has a plurality of (for example, four) rear wheels 211.
- the motor grader 1 travels when these rear wheels 211 are rotated by a driving force from an engine (not shown).
- the engine is housed in the engine chamber 212 of the rear vehicle body 21.
- the engine chamber 212 also accommodates a torque converter, a transmission, and the like (not shown).
- the torque converter is connected to the output side of the engine and transmits power from the engine to the transmission.
- the transmission is connected to the output side of the torque converter.
- the transmission includes a clutch and a transmission gear (not shown), and transmits power from the engine to the rear wheel 211 via a final reduction gear and a tandem device (not shown).
- the front vehicle body 22 is disposed in front of the rear vehicle body 21.
- the front vehicle body 22 has a plurality of (for example, two) front wheels 221.
- the front wheel 221 is disposed at the front portion of the front vehicle body 22.
- the work machine 3 includes a draw bar 31, a circle 32, a blade 33, a hydraulic motor 34, various hydraulic cylinders 35 to 39, and the like.
- the various hydraulic cylinders 35 to 39 have lift cylinders 35, 36, a drawbar shift cylinder 37, a blade shift cylinder 38, and a tilt cylinder 39 (see FIG. 2).
- the hydraulic motor 34 and the hydraulic cylinders 35 to 39 are driven by hydraulic oil from a hydraulic pump (not shown).
- the front portion of the draw bar 31 is swingably attached to the front portion of the front vehicle body 22.
- the rear part of the draw bar 31 moves up and down by the synchronized expansion and contraction of the pair of lift cylinders 35 and 36.
- the draw bar 31 swings about an axis along the front-rear direction due to the different expansion and contraction of the lift cylinders 35 and 36. Furthermore, the draw bar 31 moves to the left and right as the draw bar shift cylinder 37 expands and contracts.
- the circle 32 is rotatably attached to the rear part of the draw bar 31.
- the circle 32 is driven by a hydraulic motor 34 (see FIG. 1). As a result, the circle 32 rotates clockwise or counterclockwise with respect to the draw bar 31 as viewed from above the vehicle.
- the blade 33 is supported so as to be slidable in the left-right direction with respect to the circle 32.
- the blade 33 is supported so as to be swingable about an axis parallel to the left and right direction with respect to the circle 32.
- the blade 33 moves to the left and right with respect to the circle 32 by the blade shift cylinder 38.
- the blade 33 swings around an axis parallel to the left and right direction with respect to the circle 32 by a tilt cylinder 39 (see FIG. 2).
- the blade 33 can move up and down, change the tilt with respect to the front-rear direction, change the tilt with respect to the left-right direction, rotate, and shift in the left-right direction via the draw bar 31 and the circle 32.
- FIG. 3 is a perspective view showing details of the cab 4 as viewed from the left front.
- the cab 4 is provided on the front vehicle body 22.
- the cab 4 may be provided on the rear vehicle body 21.
- the cab 4 includes a cab main body 40 that includes a body portion 41 and a floor portion 42.
- the body portion 41 is formed in a box shape whose bottom surface is opened by a frame including the pillar 411 and is detachably attached to the floor portion 42.
- the body part 41 is attached to the floor part 42 by a fastening member, for example, a bolt.
- the body portion 41 has a front window in front of a seat 422 to be described later, a right door window in the front right of the seat 422, and a left door window in the left front of the seat 422.
- the body portion 41 has a right window on the right side of the seat 422, a left window on the left side of the seat 422, and a rear window on the rear side of the seat 422.
- the cab 4 also includes a control unit 43 (see FIG. 6) for operating the work machine 3 in the cab body 40, an air conditioning subassembly 9 described later, and the like.
- the floor portion 42 is a portion that defines the lower surface of the cab body 40, and seals the lower surface of the body portion 41.
- the floor portion 42 is attached to the front vehicle body 22 or the rear vehicle body 21.
- a pedestal portion 421 formed so as to be one step higher than the other portions is installed on the floor portion 42, and a seat 422 is detachably mounted on the pedestal portion 421.
- FIG. 4 is a perspective view showing the air conditioning subassembly 9 viewed from the left front.
- the air conditioning subassembly 9 is mainly composed of an air conditioning unit 5, a distribution box 6, ducts 7a to 7c, and blowing members 8a to 8c.
- the air conditioning subassembly 9 is basically provided in the cab body 40 except for a part of the second duct 7b.
- the air conditioning unit 5 is disposed in the cab body 40 below the seat 422 and on the floor portion 42, specifically in the pedestal portion 421.
- the air conditioning unit 5 generates cold air or hot air by exchanging heat between the air sucked into the interior and the refrigerant.
- the air conditioning unit 5 includes a core part and a fan.
- the core portion has a refrigerant flowing therein, and cold air or hot air is generated by heat exchange between the refrigerant and air. Examples of the refrigerant include ammonia, carbon dioxide, or hot water.
- the fan sends out the generated cold air or hot air to the outside of the air conditioning unit 5.
- the air conditioning unit 5 includes a first intake portion (not shown) that sucks air in the cab body 40 and a second intake portion 51 that sucks air outside the cab body 40.
- the first intake portion sucks air in the cab body 40 through an opening formed in the pedestal portion 421.
- the second intake portion 51 opens to the outside of the cab body 40, specifically, a space between the cab body 40 and the engine chamber 212.
- the air conditioning unit 5 sucks air from the inside of the cab body 40 and the outside of the cab body 40 by the first air intake part and the state in which only the air in the cab body 40 is sucked by the first air intake part. It is possible to switch between two states.
- the air conditioning unit 5 has an air outlet (not shown) for discharging the generated cold air and hot air.
- FIG. 5 is a perspective view showing details of the distribution box 6 as seen from the left front.
- the distribution box 6 is a member that distributes cold air or hot air discharged from the air conditioning unit 5, and is installed adjacent to the air conditioning unit 5.
- the distribution box 6 includes a box body 61 and first and second partition plates 62 a and 62 b installed in the box body 61.
- the box body 61 has a substantially rectangular parallelepiped shape extending in the front-rear direction and has a space inside.
- the box body 61 is made of resin.
- the box body 61 has an introduction port 61a and air blowing ports 61b to 61e.
- the introduction port 61 a is a part formed for introducing the cold air or the hot air from the air conditioning unit 5 into the box body 61.
- the introduction port 61a opens toward the left side (an example of the second side) that is the air conditioning unit 5 side. More specifically, the introduction port 61 a is formed in the entire left side wall of the box body 61.
- the introduction port 61 a communicates with the air blowing port of the air conditioning unit 5.
- the first air outlet 61b of the box body 61 opens toward the right side (an example of the first side) that is the opposite side to the air conditioning unit 5 side. More specifically, the first air blowing port 61 b is formed in a circular shape at the front portion of the right side wall of the box body 61.
- the second blower opening 61c opens downward. More specifically, the second blower opening 61 c is formed in a circular shape at the center of the bottom wall of the box body 61. Moreover, the 3rd ventilation opening 61d is opened toward the right side (an example of the 1st side) which becomes the opposite side to the air-conditioning unit 5 side. More specifically, the third air outlet 61 d is formed in a circular shape at the rear portion of the right side wall of the box body 61. Therefore, the box body 61 is formed with a first air outlet 61b, a second air outlet 61c, and a third air outlet 61d in this order from the front, and these first to third air outlets 61b to 61d are formed in a side view. 61d do not overlap each other.
- the box body 61 is formed with a fourth air outlet 61e that opens forward. More specifically, the fourth air outlet 61 e is formed on the entire front wall of the box body 61.
- first and second partition plates 62a and 62b are installed in the box body 61.
- the first partition plate 62 a extends upward from the bottom surface 611 of the box body 61. Further, the first partition plate 62a is formed so as to surround the second air blowing port 61c except for the left side which is the introduction port 61a side in a plan view. That is, the first partition plate 62a is formed on the front, right side, and rear side of the second air outlet 61c in plan view.
- the first partition plate 62 a does not extend to the ceiling surface of the box body 61, that is, a gap is formed between the upper end of the first partition plate 62 a and the ceiling surface of the box body 61. As a result, the space S defined by the first partition plate 62a and the bottom wall of the box body 61 is open on the left side and the upper side.
- the second partition plate 62b is installed so as to completely partition the flow path connecting the introduction port 61a and the fourth blower port 61e, and a through slit 621b extending in the vertical direction is formed at the center of the second partition plate 62b. Is formed. Therefore, the cool air or the warm air introduced from the introduction port 61a is sent to the fourth blower port 61e only through the through slit 621b. Moreover, since the 4th ventilation port 61e is formed so that cold wind or warm air may be blown out toward the front of the base part 421, the cold wind or warm air blown out from the 4th ventilation port 61e is the sheet
- the first air outlet 61b of the distribution box 6 is connected to the first end of the first duct 7a, and the second end of the first duct 7a is connected to the first blowing member 8a.
- the 1st duct 7a has connected the distribution box 6 and the 1st blowing member 8a.
- the first duct 7a is made of resin, and the flow passage cross-sectional area of the first duct 7a is not particularly limited.
- the first blowing member 8a is a substantially rectangular parallelepiped member extending in the vertical direction, and the inside is hollow.
- the first blowing member 8 a is fixed to the pillar 411 of the body portion 41 of the cab body 40, and is disposed on the right side of the seat 422 in the cab body 40. In other words, the first blowing member 8a is arranged on the right front side when viewed from the operator seated on the seat 422.
- the first blowing member 8a Since the first blowing member 8a is connected to the first duct 7a at the lower end, cold air or warm air generated by the air conditioning unit 5 is sent through the distribution box 6 and the first duct 7a.
- the first blowing member 8a has a plurality of (for example, four) first blowing portions 81a to 83a. Each of the first blowing portions 81a to 83a has a function of blowing cold air or hot air sent into the first blowing member 8a into the cab body 40.
- first blowing portions 81a to 83a will be described.
- the two first blowing portions 81a formed on the left side wall of the first blowing member 8a in the upper part of the first blowing member 8a are located at almost the same height as the face of the operator seated on the seat 422.
- a first blowing part 82a (see FIG. 6) formed on the rear wall of the first blowing member 8a at the lower part of the first blowing member 8a is cold air or hot air against the right window located on the right side of the seat 422.
- the angle is set to blow.
- the first blowing portion 83a formed on the front wall of the first blowing member 81a at the lower end portion of the first blowing member 8a blows cold air or hot air to the lower portion of the right door window located on the right front side of the seat 422. The angle is set so that it is attached.
- FIG. 6 is a cross-sectional rear view showing details of the cab 4. As shown in FIG. 6, a first end of the second duct 7b is connected to the second air outlet 61c of the distribution box 6, and the second end of the second duct 7b is connected to the second blowing member 8b. Has been. That is, the second duct 7b connects the distribution box 6 and the second blowing member 8b.
- the second duct 7b has a duct main body portion 71b connected to the distribution box 6 and a connecting portion 72b connected to the second blowing portion 8b.
- the duct main body portion 71 b is disposed below the floor portion 42 of the cab main body 40. That is, the duct main body 71 b is exposed to the outside of the cab main body 40.
- the connecting portion 72b is disposed inside the cab body 40.
- FIG. 7 is a perspective view of the duct main body 71b of the second duct 7b as viewed from the left rear.
- the duct main body 71b is made of resin and extends in the left-right direction.
- the duct body 71b communicates with the second air blowing port 61c of the distribution box 6 via the first connection portion 711b formed at the right end portion, and the connection portion via the second connection portion 712b formed at the left end portion. 72b.
- the second duct 7 b further includes a heat insulating material 73 b that covers the periphery of the duct body 71 b.
- the heat insulating material 73b can be formed of, for example, urethane foam.
- the flow path cross-sectional area of the duct main body portion 71b and the connecting portion 72b is not particularly limited.
- the second blowing member 8b has a rectangular parallelepiped shape extending in the vertical direction and has a space inside.
- the second blowing member 8 b is fixed to the pillar 411 of the body portion 41 of the cab body 40 and is disposed on the left side of the seat 422 in the cab body 40. That is, the second blowing member 8b is disposed on the left front side when viewed from the operator seated on the seat 422.
- the second blowing member 8b Since the second blowing member 8b is connected to the second duct 7b at the lower end, the cold air or hot air generated by the air conditioning unit 5 is sent through the distribution box 6 and the second duct 7b.
- the second blowing member 8b has a plurality of (for example, four) second blowing portions 81b to 83b. Each of the second blowing portions 81b to 83b has a function of blowing cold air or warm air sent into the second blowing member 8b into the cab body 40.
- the two second blowing portions 81b formed on the right side wall of the second blowing member 8b above the second blowing member 8b are substantially the same height as the face of the operator seated on the seat 422. Is located. Further, the second blowing portion 82b formed on the rear wall of the second blowing member 8b below the second blowing member 8b blows cold air or hot air against the left window located on the left side of the seat 422. It is set to an angle. As shown in FIG. 4, the second blowing portion 83 b formed on the front wall of the second blowing member 8 b at the lower end of the second blowing member 8 b is a lower portion of the left door window located on the left front side of the seat 422. The angle is set so that cold air or hot air is blown out.
- the first end of the third duct 7 c is connected to the third air outlet 61 d of the distribution box 6, and the second end of the third duct 7 c is connected to the third blowing member 8 c.
- the third duct 7c connects the distribution box 6 and the third blowing member 8c.
- the third duct 7c extends upward in the cab body 40 along the right rear pillar 411 of the body portion 41 to the ceiling surface of the cab body 40, and extends forward along the ceiling surface of the cab body 40. 3 is connected to the blowing member 8c.
- the third duct 7c is made of resin.
- the third blowing member 8 c is installed at the front part of the ceiling surface of the cab body 40.
- the third blowing member 8c has three third blowing portions 81c to 83c so as to blow cold air or hot air from above on the front window, left door window, and right door window of the cab body 40. Yes.
- the operation of the air conditioning subassembly 9 when the cab body 40 is cooled in the motor grader 1 configured as described above will be described.
- the air conditioning unit 5 sucks air in the cab body 40 from the first air intake portion, and cools the air by exchanging heat between the sucked air and the refrigerant flowing through the core portion. And the air-conditioning unit 5 discharges the cooled air from a ventilation opening with a fan, and produces
- the cold air generated by the air conditioning unit 5 is sent into the box body 61 of the distribution box 6 through the inlet 61a.
- the cold air sent into the box main body 61 of the distribution box 6 is mixed in the box main body 61 so that the temperature unevenness is eliminated and the temperature becomes constant.
- a part of the cold air supplied into the box main body 61 is sent to the first blowing member 8a via the first air blowing port 61b and the first duct 7a, and each first blowing portion 81a of the first blowing member 8a.
- Cold air is blown from ⁇ 83a.
- the 1st blowing part 81a formed in the left side wall in the upper part of the 1st blowing member 8a blows cold wind from the front right on the worker seated on the seat 422, especially the worker's face.
- the 1st blowing part 82a formed in the rear wall in the lower part of the 1st blowing member 8a blows cold wind with respect to a right window. As a result, fogging of the right window can be prevented.
- the 1st blowing part 83a formed in the front wall in the lower end part of the 1st blowing member 8a blows cold wind with respect to the lower part of a right door window. This prevents fogging of the right door window.
- each second blowing member 8b has a second one.
- 2 Cold air is blown out from the blowing parts 81b to 83b.
- the 2nd blowing part 81b formed in the right side wall in the upper part of the 2nd blowing member 8b blows cold wind from the front left on the worker seated on the seat 422, especially the worker's face.
- the 2nd blowing part 82b formed in the rear wall in the lower part of the 2nd blowing member 8b blows cold wind with respect to a left window.
- the 2nd blowing part 83b formed in the front wall in the lower end part of the 2nd blowing member 8b blows cold wind with respect to the lower part of a left door window. This prevents fogging of the left door window.
- each third blowing member 8c has a third blowing member 8c.
- Cold air is blown out from the three blowing portions 81c to 83c.
- the 3rd blowing part 81c formed in the right end part of the 3rd blowing member 8c sprays cold wind from upper direction with respect to a right door window. Thereby, fogging of the right door window can be prevented.
- the 3rd blowing part 82c formed in the center part of the 3rd blowing member 8c sprays cold wind from upper direction with respect to a front window.
- the 3rd blowing part 83c formed in the left end part of the 3rd blowing member 8c sprays cold wind from upper direction with respect to a left door window. This prevents fogging of the left door window.
- the motor grader 1 according to the present embodiment has the following characteristics.
- the first blowing part 81a formed on the upper part of the first blowing member 8a blows cold air or warm air from the right side on the operator seated on the seat 422.
- the 2nd blowing part 81b formed in the upper part of the 2nd blowing member 8b blows cold air or warm air from the left side with respect to the operator seated on the seat 422.
- the first and second blowing portions 81a and 81b can blow cold air or warm air from both sides to the operator.
- the distribution box 6 supplies cold air or hot air to the first blowing portion 81a arranged on the right side through the first air outlet 61b that opens toward the right side, while the second blowing unit 81a arranged on the left side.
- Cold air or warm air is supplied to the blowout portion 81b through the second air outlet 61c that opens downward.
- the second duct 7b connected to the second air outlet 61c is connected to the second air outlet. After extending downward from the mouth 61c, it extends to the left. That is, since the second duct 7b does not extend to the right side, the installation space in the horizontal direction can be reduced.
- the second duct 7b that supplies the cool air or the warm air from the second air blowing port 61c to the second blow-out portion 81b is disposed below the seat 422, so that the space in the cab body 40 is not narrowed. .
- the first partition plate 62a for restricting the flow path of the cold air or the hot air flowing through the box body 61 is installed in the box body 61 of the distribution box 6, the first blowing part 81a and the second blowing part The amount of cold air or hot air supplied to the section 81b can be adjusted. As a result, it is possible to improve the air volume balance of the cold air or the hot air blown out from the first blowing portion 81a and the second blowing portion 81b.
- the first partition plate 62a extends upward from the bottom surface of the box body 61, and surrounds the second air blowing port 61c in a plan view and opens toward the left side (introduction port 61a side).
- the amount of cold air or hot air can be increased. Thereby, the air volume of the cool air or the hot air discharged through the first air outlet 61b can be brought close to the air volume of the cold air or the hot air discharged through the second air outlet 61c.
- the first partition plate 62a is formed so that a gap is formed between the upper end and the ceiling surface of the box body 61, the first partition plate 62a is adapted to receive cold air or hot air sent from the air conditioning unit 5 into the box body 61. Even when the temperature is uneven, the cold air or the hot air mixed in the box body 61 through the gap and having a uniform temperature can be discharged from the second air outlet 61c or the like.
- the flow path cross-sectional area of the second duct 7b can be increased without reducing the space in the cab body 40. .
- the second duct 7b includes the duct main body 71b and the heat insulating material 73b covering the periphery of the duct main body 71b, the temperature of the cold air or the hot air flowing in the duct main body 71b is kept constant by the heat insulating material 73b. be able to.
- the first partition plate 62a is not particularly limited to the shape of the above-described embodiment as long as it has a shape that guides the cool air or the warm air introduced into the box body 61 from the introduction port 61a to the second air blowing port 61c.
- Modification 2 The number of blower openings formed in the box body 61 of the distribution box 6 in the above embodiment, the number of blowing portions provided in each blowing member, and the like are not limited to the above embodiment.
- the motor grader 1 to which the present invention is applied has been described as an example.
- the work vehicle to which the present invention can be applied is not limited to the motor grader 1.
- the present invention can be applied to a hydraulic excavator, a bulldozer, a wheel loader, or the like.
- the box body 61 of the distribution box 6 in the above embodiment is formed in a substantially rectangular parallelepiped shape, but is not particularly limited thereto.
- the box body 61 may have a cylindrical bellows portion, and an inlet 61a may be formed at the tip of the bellows portion.
- Modification 5 In the above embodiment, the air conditioning unit 5 and the distribution box 6 are directly connected. However, the present invention is not particularly limited thereto. For example, as shown in FIG. 9, a connection duct is provided between the air conditioning unit 5 and the distribution box 6. 10 may intervene.
- the connecting duct 10 has a bellows shape, and connects the air outlet of the air conditioning unit 5 and the inlet 61a of the distribution box 6.
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- Thermal Sciences (AREA)
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Abstract
Description
次に、上述したように構成されたモータグレーダ1においてキャブ本体40内を冷房する際の空調サブアセンブリ9の動作について説明する。
本実施形態に係るモータグレーダ1は、次の特徴を有する。
以上、本発明の実施形態について説明したが、本発明はこれらに限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。
第1仕切板62aは、導入口61aからボックス本体61内に導入された冷風又は温風を第2送風口61cに導く形状であれば、上記実施形態の形状に特に限定されない。
上記実施形態における分配ボックス6のボックス本体61に形成された送風口の数、及び各吹き出し部材に設けられた吹き出し部の数などは、上記実施形態に限定されるものではない。
上記実施形態では、本発明を適用したモータグレーダ1を例に挙げて説明したが、本発明を適用できる作業車両はモータグレーダ1に限定されない。例えば、本発明を、油圧ショベル、ブルドーザ、又はホイールローダなどに適用することも可能である。
上記実施形態における分配ボックス6のボックス本体61は、略直方体状に形成されているが、特にこれに限定されるものではない。例えばボックス本体61は、筒状となった蛇腹部分を有しており、この蛇腹部分の先端に導入口61aが形成されていてもよい。
上記実施形態では、空調ユニット5と分配ボックス6とが直接連結されているが、特にこれに限定されず、例えば、図9に示すように、空調ユニット5と分配ボックス6との間に連結ダクト10が介在していてもよい。この連結ダクト10は、蛇腹状であって、空調ユニット5の送風口と分配ボックス6の導入口61aとを連結している。
4 キャブ
40 キャブ本体
42 フロア部
422 シート
5 空調ユニット
6 分配ボックス
61 ボックス本体
61a 導入口
61b 第1送風口
61c 第2送風口
62 第1仕切板
7a 第1ダクト
7b 第2ダクト
71b ダクト本体
73b 断熱材
81a 第1吹き出し部
81b 第2吹き出し部
Claims (10)
- フロア部を有するキャブ本体と、
前記キャブ本体内に設置されたシートと、
前記シートの下方であって前記フロア部上に配置された空調ユニットと、
前記キャブ本体内において車幅方向の第1側に配置され、前記空調ユニットからの空気を吹き出す第1吹き出し部と、
前記キャブ本体内において前記第1側と逆側の第2側に配置され、前記空調ユニットからの空気を吹き出す第2吹き出し部と、
前記第2側に向かって開口し前記空調ユニットからの空気を導入する導入口、前記第1側に向かって開口する第1送風口、及び下方に向かって開口する第2送風口が形成されたボックス本体を有する分配ボックスと、
前記第1送風口に接続され、前記第1吹き出し部に前記空調ユニットからの空気を供給する第1ダクトと、
前記第2送風口に接続されて前記第2側に向かって延び、前記第2吹き出し部に前記空調ユニットからの空気を供給する前記第2ダクトと、
を備える、キャブ。 - 前記分配ボックスは、前記ボックス本体内において、前記空調ユニットからの空気の流路を規制する仕切板をさらに有する、請求項1に記載のキャブ。
- 前記仕切板は、前記ボックス本体の底面から上方に延び、平面視において前記第2送風口を囲むとともに前記第2側に向かって開口する、請求項2に記載のキャブ。
- 前記仕切板は、上端と前記ボックス本体の天井面との間に隙間を有する、請求項3に記載のキャブ。
- 前記第2ダクトは、前記フロア部の下方を延びる、請求項1から4のいずれかに記載のキャブ。
- 前記第2ダクトは、ダクト本体と、前記ダクト本体の周囲を覆う断熱材とを有する、請求項5に記載のキャブ。
- 前記第1吹き出し部は、前記シートの右側及び左側のいずれか一方に配置され、
前記第2吹き出し部は、前記シートの右側及び左側のいずれか他方に配置される、請求項1から6のいずれかに記載のキャブ。 - 前記ボックス本体は、前記第1側に向かって開口する第3送風口をさらに有し、
前記仕切り板は、平面視において、前記第1送風口と前記第2送風口とを仕切るとともに、前記第2送風口と前記第3送風口とを仕切る、請求項3に記載のキャブ。 - 前記空調ユニットと前記ボックス本体の前記導入口とを連結する連結ダクトをさらに備える、請求項1から8のいずれかに記載のキャブ。
- 請求項1から9のいずれかに記載のキャブを備える、作業車両。
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PCT/JP2013/063518 WO2014184891A1 (ja) | 2013-05-15 | 2013-05-15 | キャブ、及び作業車両 |
US14/351,223 US9027687B2 (en) | 2013-05-15 | 2013-05-15 | Cab, and work vehicle |
JP2013555110A JP5654145B1 (ja) | 2013-05-15 | 2013-05-15 | キャブ、及び作業車両 |
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US9821629B2 (en) * | 2015-06-23 | 2017-11-21 | Deere & Company | Operator station |
US10041226B2 (en) * | 2015-08-26 | 2018-08-07 | Deere & Company | Operator cabin post configuration in work vehicle |
US10352084B2 (en) * | 2017-07-17 | 2019-07-16 | Caterpillar Inc. | System and method for monitoring a cabin of a machine |
FR3079452B1 (fr) * | 2018-03-30 | 2021-06-04 | Renault Sas | Dispositif de distribution d'air pour vehicule automobile |
CN112762591B (zh) * | 2021-01-05 | 2022-07-12 | 格力电器(武汉)有限公司 | 空调的控制方法和装置、电子设备和存储介质 |
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