JP2010076497A - Cabin of mobile agricultural machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent, on performing operation, an air blow-out opening, an air-conditioning apparatus itself, ducts or the like from being projected to an inside of a cabin when an air-conditioning apparatus is mounted on a cabin roof of a mobile agricultural machine. <P>SOLUTION: An intake air duct 3 of a brower case 5, provided in a front part of a cabin roof 1 is connected to an outside air duct 8 that extends via an air filter 6 to an air blow-out opening 7 of a rear end of the cabin roof 1. In a lower side of the intake air duct 3, the air blow-out opening 4 is formed in a step part 9 that is formed over the blower 2 in a front part and the intake air duct 3 in a rear upper part, and an air flow generated by the blower 2 is blown out from the air blow-out opening 4 to the rear lower part. The blower 2 is configured in a front end part of the intake air duct 3 so that a projection margin projecting downwards from the intake air duct 3 can be made small, and further, projection of the air blow-out opening 4, an blow-out cylinder or the like to the inside of the cabin is made small. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cabin mounted on a mobile agricultural machine, and is intended to facilitate a driving operation by simply configuring a cabin in which an air conditioner is installed.

By installing a mist cooler on the cabin roof, the outside air sucked from the outside air at the rear end of the roof is guided to the blower at the front through the air intake duct at the center of the roof, and blown from the blower to the blowing cylinder A technique (see Patent Document 1) is known in which air is blown from the blow-out cylinder into the cabin while adjusting the mist during the operation.
JP 2003-267043 A (2nd page, FIG. 1).

  In the form in which the air conditioner is mounted on the cabin roof of the mobile farm machine, it is necessary that the air blower outlet, the air conditioner itself, the ducts, and the like do not protrude from the cabin interior in the operation. In addition, when these air conditioners or the like are protruded largely upward from the roof plate on the upper outer side of the roof, or when the roof plate is bulged upward and accommodated in the cabin room on the lower side, It is likely that workability is limited by increasing the absolute height of the roof panel.

  In the first aspect of the present invention, a blower case 5 having a blower 2, an intake duct 3, and an air outlet 4 is provided at the front portion of the cabin roof 1, and the intake duct 3 is connected to the cabin via an air filter 6. A stepped portion 9 is formed between the front blower 2 and the rear upper intake duct 3 on the lower side of the intake duct 3 while being connected to an outside air duct 8 over the outside air port 7 at the rear end of the roof 1. The air blower 4 is formed in the air blower 2 so that the wind generated by the blower 2 is blown out rearward from the air outlet 4. By driving the blower 2, the outside air sucked from the outside air port 7 is sucked from the intake duct 3 to the blower 2 through the outside air duct 8 and the air filter 6. The wind blown out from the blower 2 is blown out downward in the cabin from the rear outlet 4 in the cabin. Although the blower 2 has a relatively large thickness, the blower 2 is configured at the front end portion of the intake duct 3, so that the protrusion margin protruding downward from the intake duct 3 can be reduced. In order to form the step portion 9 between the intake duct 3 and the blower 2 and the blowout port 4 that blows out toward the lower rear side, the protrusion of the blowout port 4 or the blowout cylinder into the cabin room is reduced. Is. Further, since the air filter 6 is housed at the rear end of the intake duct 3 and at the connecting portion with the outside air duct 8, the protrusion of the air filter 6 into the cabin room is also reduced. It is.

  According to the second aspect of the present invention, the duct lower surface 10 of the intake duct 3 between the blower 2 and the air filter 6 is made higher than the filter lower surface 11 which is the lower end surface of the air filter 6 portion, and the rear pace is increased. R is formed, and the air outlet 4 is formed in the step portion 9 on the front side of the rear space R. As described above, the blower 2 and the air filter 6 that filters the outside air sucked by the drive of the blower 2 are bulky and easily protrude into the cabin room. The duct lower surface 10 is curved higher than the air filter 6-part filter lower surface 10, and a rear space R is formed on the rear side of the blower 2 to keep the cabin room high. Therefore, the lower end portion of the blower 2 protrudes from the front side surface portion of the rear space R, and the step 9 is formed to form the blowout portion 4.

  According to a third aspect of the present invention, a front space F that can be seen through is formed between the front end face 12 of the blower case 5 and the upper window frame 14 on the windshield 13. By configuring the blower 2 of the blower case 5 arranged at the front of the cabin roof 1 as described above at the foremost end of the blower case 5, the blower 2 and the air filter 6 can enter the cabin room. The front space F is easily formed by forming the front space F between the front end face 12 and the upper window frame 14 together with the front windshield 13 of the driver. Widen the perspective area and field of view.

  According to the first aspect of the present invention, a blower case 5 is formed at the front portion of the cabin roof 1, a floor 2 is formed at the front portion of the intake duct 3, and an outside air duct 8 is formed at the rear end portion via the air filter 6. In order to connect, the air filter 6 as well as the blower 2 can be disposed at the uppermost position together with the air intake duct 3, and the protrusion of the stepped portion 9 protruding to the lower surface of the air intake duct 3 of the blower 2 can be reduced. Since the air outlet 4 is provided by using the step portion 9, the protrusion of the air outlet 4 into the local cabin room can be reduced, and the rear side of the air outlet 4 is directed downward. The blowout setting in the inclination direction can be facilitated, and the thickness of the cabin roof 1 as a whole is formed into a thin layer and is simply configured to maintain the height in the cabin room high, thereby improving the driving operability. Can keep good That.

  Since the rear space R is formed high on the upper side of the cabin room portion blown out from the air outlet 4 of the stepped portion 9 and the position of the air outlet 4 can be increased, The convection of the wind around the blower outlet 4 is performed smoothly, and the thickness of the blower case 5 part is made thinner and wider so that the cabin can be made less disturbing the driving operation. Further, when the stepped portion 9 and the outlet 4 are inclined so as to face downward in the rear side, the lower end corner portion of the stepped portion 9 is formed in an obtuse angle so that the lower portion of the rear space R Can be made wide to the front side, making it difficult to get in the way.

  According to the third aspect of the present invention, in order to reduce the thickness of the entire blower case 5 as described above, the front pace F between the front end face 12 and the upper corner frame 14 is formed to be larger. It is easy to widen the driver's forward field of view by this front space F, and the operability can be enhanced.

  Based on the drawings, the cabin 15 is mounted in a form that covers the driver's seat of a four-wheel traveling riding tractor, a crawler traveling combine, and other various agricultural machines. The cabin 15 has a mounting base frame or a mounting bracket 26 that is supported and mounted on a vehicle body such as a tractor. A configuration in which a cabin floor, a driver's seat, and the like are integrally mounted on the mounting base frame and the like. It can also be. The cabin roof 1 is supported by a pair of front pillars 16 positioned on the left and right outer portions of the front dashboard of the tractor vehicle body and a pair of rear pillars 17 positioned on the left and right rear fenders. The lower ends of each front pillar 16 are connected by a lower window frame 18, and the upper ends are connected by an upper window frame 14, and are surrounded by each front pillar 16, lower window frame 18, and upper window frame 14. Attach the windshield 13 to the window frame. Further, the upper and lower ends of the front pillars 16 and the rear pillars 17 are connected by upper and lower frames 19 and 20, and the left and side glasses 21 are connected to the front pillars 13, the rear pillars 17, the upper frame 19, And the left and right window frame portions surrounded by the lower frame 20 and the like. Further, the upper ends of the left and right rear pillars 17 are connected by an upper window frame 22, and the lower ends are surrounded by a rear frame or the like connected across the left and right fenders. Attach an openable / closable glass. At the upper part of the rear pillar 17, the mounting bracket 26 that is mounted and supported via a mounting arm 24 is provided inside the cabin room 28, and the mounting bracket 26 is directly attached to the rear frame of the rear portion of the vehicle body, the vehicle body, or the like. Can be installed.

  In this manner, the upper and lower frames 19 on both the left and right sides supported by the front pillar 16 and the rear pillar 17, the upper window frames 14 and 22, and the like are configured in a girder shape. On the upper side of the cabin frame 25, an inverted dish-shaped cabin roof 1 made of sheet metal or blown fat is provided around the rear hinge 27 so as to be pivotable up and down.

  The cabin roof 1 covered on the upper side of the cabin frame 25 includes a pair of front and rear front bars 29 and a rear bar 30 extending in the horizontal direction, a vertical bar 31 connecting the front bar 29 and the rear bar 30, and these It is attached to a roof frame 33 having a horizontal bar 32 connecting the left and right vertical bars 31 with a bis stop 34 or the like. Support frames 35 are provided on both left and right sides of the rear frame 30 at the rear end of the roof frame 33, and the support arms 35 are supported around the hinges 27 at the upper end of the rear pillar 17 so as to be openable and closable. This open / close link 36 is provided between the horizontal beam 32 of the roof frame 33 and the connected horizontal beam 37 between the left and right upper frames 19 of the cabin frame 25, and opens and closes the cabin roof by expanding and contracting. Can do.

  An outside air duct 8 that sucks and guides outside air is attached along the inner central portion of the cabin roof, and the blower case 5 is attached to the front portion of the cabin frame 25. Here, a blower case 5 having a blower 2, an intake duct 3, and an outlet 4 is provided at the front of the cabin roof 1, and the intake duct 3 is connected to the outside air at the rear end of the cabin roof 1 via an air filter 6. The blower outlet 4 is connected to an outside air duct 8 extending over the mouth 7, and a step 9 formed between the front blower 2 and the rear upper intake duct 3 below the intake duct 3. It forms and it is set as the structure of the cabin of the mobile agricultural machine characterized by blowing off the wind generated by the blower 2 from this blower outlet 4 to the back lower side. By driving the blower 2, the outside air sucked from the outside air port 7 is sucked from the intake duct 3 to the blower 2 through the outside air duct 8 and the air filter 6. The wind blown out from the blower 2 is blown out downward in the cabin room 28 from the rear outlet 4. Although the blower 2 has a relatively large thickness, the blower 2 is configured at the front end portion of the intake duct 3, so that the protrusion margin protruding downward from the intake duct 3 can be reduced. In order to constitute the step 9 between the air intake duct 3 and the blower 2 and the air outlet 4 that blows out toward the lower rear side, the protrusion into the cabin room 28 such as the air outlet 4 or the air outlet cylinder is made small. To do. Further, since the air filter 6 is accommodated at the rear end portion of the intake duct 3 and at the connection portion with the outside air duct 8, the protrusion of the air filter 6 portion into the cabin room 28 is also reduced. Is.

  Further, the duct lower surface 10 of the intake duct 3 between the blower 2 and the air filter 6 is made higher than the lower filter surface 11 which is the lower end surface of the air filter 6 to form a rear pace R. The air outlet 4 is formed in the step 9 on the front side of the space R. As described above, the blower 2 and the air filter 6 that filters the outside air sucked by the drive of the blower 2 are bulky and easily protrude into the cabin room. The duct lower surface 10 is raised so as to bend upward from the air filter 6-part filter lower surface 10, and a rear space R is formed on the rear side of the blower 2 to keep the cabin room high. Accordingly, the lower end portion of the blower 2 is projected from the front side surface portion of the rear space R, the step 9 is formed, and the blowout portion 4 is formed.

  Furthermore, a front space F that can be seen through is formed between the front end face 12 of the blower case 5 and the upper window frame 14 on the windshield 13. By configuring the blower 2 of the blower case 5 arranged at the front of the cabin roof 1 as described above at the foremost end of the blower case 5, the blower 2 and the air filter 6 can enter the cabin room. The front space F is easily formed by forming the front space F between the front end face 12 and the upper window frame 14 together with the front windshield 13 of the driver. Widen the perspective area and field of view.

  The intake duct 8 has a rectangular cross section that is wide in the horizontal direction and has a low vertical height, and is configured to have a length ranging from a substantially central position in the front-rear direction of the cabin roof 1 to a rear end position. The front end portion of the intake duct 8 is bent slightly downward, and the rear end portion is bent at a right angle downward, and the outside air port 7 is formed at the rear end portion of the rear duct 23 of the cabin 15. It looks into the rear side. The front end portion of the intake duct 8 is attached to the horizontal rail 32 and the rear end portion is attached to the rear rail 30.

  The blower case 5 is formed to have substantially the same width as the outside air duct 8, has an intake duct 3 connected to the front end of the outside air duct 8, and a blower 2 at the front end of the outside air duct 3. The upper window frame 14 on the frame 25 is attached over a pair of left and right mounting bars 38 that connect the rear side horizontal bar 37. The blower case 5 has a height corresponding to the rotational diameter of the blower 2, and the intake duct 3 is connected to the upper end of the blower case 5 so as to extend to the rear outside air duct 8. The duct lower surface 10 of the outside air duct 8 is configured so as to be recessed upward as much as possible, and the duct mouth portion 39 at the rear end of the outside air duct 8 is greatly expanded in the vertical direction, and the air filter 6 is formed inside. Easy to put on and take off. The duct port 39 connects the front end duct port 40 of the outside air duct 8 when the cabin roof 1 is closed. An air filter is provided between the duct port 39 and the duct port 40 of the outside air duct 8. 6 is also possible, and a filter case that houses the air filter 6 is formed. The front and rear end surfaces of the filter case are connected to the duct ports of the intake duct 3 and the outside air duct 8. It can be connected to the parts 39, 40.

  Since the duct lower surface 10 of the intake duct 3 is formed so as to bend to a position above the filter lower surface 11 of the duct opening 39, the rear space R formed below the intake duct 3 is also formed high. Thus, the height of the step 9 on the rear side of the blower 2 can be made large regardless of the shape of the blower 2 having a large or small rotational diameter. The diameter of the blowout port 4 can be increased. In addition, by inclining the step portion 9 and the air outlet 4 forward and downward, it is easy to set the air blowing direction to the cabin room 28 in an oblique direction toward the lower rear side. By forming the corner with the lower surface of the blower 2 to be an obtuse angle, it is possible to make it difficult to obstruct driving operations.

  Further, in this way, the height of the blower case 5 is made small and configured in a thin layer form, so that the space between the front end face 12 of the blower 2 and the upper window frame 14 on the windshield 13 of the cabin frame 25 is reduced. The front space F can be widely formed. Therefore, the viewing area of the windshield 13 is maintained higher and the operability is improved. Further, side spaces S are formed on both the left and right sides of the blower case 5 and the outside air duct 8.

  A blower case 5 is attached to the front portion of the cabin frame 25 to close the cabin roof 1. By electrically rotating the blower 2, the suction force of the blower 2 sucks outside air from the outside air port 7 at the rear end of the outside air duct 8, and passes the outside air through the outside air duct 3. The outside air is filtered by the air filter 6 on the way. Then, the air is sucked into the blower 2 and blown out from the blower 2 to the rear outlet 4. The interior of the cabin room 28 is cooled or heated by blowing out from the air outlet 4 downward in the rear side. The cabin roof 1 is formed high by the rear space R formed below the lower duct lower surface 10 of the air intake duct 3 portion of the blower case 5, so that the height difference of the stepped portion 9 on the front side is greatly formed. In addition, the height and thickness of the blower case 5 as a whole can be made small, so that the blow-out of the blower case 5 into the cabin room 28 can be reduced. In addition, the rear space R at the upper part of the outlet 4 can be formed wide to reduce the resistance of the blowing air at this portion, so that the convection of the blowing air can be performed smoothly and the air conditioning effect can be enhanced.

  By forming the stepped portion 9 forming the blower outlet 4 high up and down, and forming the inclined surface facing downward on the rear side, the lower end corner of the stepped portion 9 of the blower 2 can be released to the front side, For this reason, even if the driver gets on and off or stands on the upper surface of the cabin floor, the head is less likely to hit. Moreover, by moving the setting position of the blower case 5 slightly rearward, it is possible to widen the front space F above the windshield 13 and widen the upper limit view area, thereby facilitating the driving operation. Further, by disposing the air filter 6 of the blower case 5 at the rear end portion of the intake duct 3, the filter lower surface 11 of the air filter 6 installation portion is lowered to form a wide set sectional area of the air filter 6. As a result, the outside air duct 8 can be easily connected, and the duct lower surface 10 can be formed high upward to form a wide rear space R.

The side view of a cabin roof part. FIG. The plan view. The side view which shows the operation state. The perspective view seen from the lower direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cabin roof 2 Blower 3 Air intake duct 4 Air outlet 5 Blower case 6 Air filter 7 Outside air port 8 Outside air duct 9 Step part 10 Duct lower surface 11 Filter lower surface 12 Front end surface 13 Front glass 14 Upper window frame R Rear space F Front space

Claims (3)

  A blower case (5) having a blower (2), an intake duct (3), and an outlet (4) is provided at the front of the cabin roof (1). The intake duct (3) is provided with an air filter (6 ) To the outside air duct (8) extending to the outside air port (7) at the rear end of the cabin roof (1) through the air intake duct (3). The said blower outlet (4) is formed in the level | step-difference part (9) formed between upper air intake ducts (3), and the wind by a blower (2) is rear-side downward from this blower outlet (4) A cabin of a mobile agricultural machine characterized by blowing out.   The lower duct surface (10) of the intake duct (3) between the blower (2) and the air filter (6) is higher than the lower filter surface (11), which is the lower end surface of the air filter (6). Then, a rear pace (R) is formed, and the air outlet (4) is formed in a step portion (9) on the front side of the rear space (R). .   A front space (F) that can be seen through forward is formed between a front end face (12) of the blower case (5) and an upper window frame (14) on the windshield (13). Item 3. The mobile agricultural machine according to Item 1 or 2.

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