JP2019202609A - Work machine - Google Patents

Abstract

To provide a work machine for preventing positional deviation of a hinge by easily adjusting a position of the hinge of a boarding door.SOLUTION: A work machine comprises an operation part 2 for boarding by an operator, a cabin 7 for covering the operation part 2 and a boarding part 4 having a transverse-opening boarding door 40 in a boarding port 40a of the operation part 2, and the cabin 7 comprises a frame body for forming the boarding port 40a, and the boarding part 4 comprises a hinge 41 having a frame side member fixed to the frame body and a door side member fixed to the boarding door 40 and a stopper 45 fixed to the frame body and positioning the hinge 41, and the frame side member is fixed to an airframe outside surface of the frame boody, and the stopper 45 comprises an abutting surface for positioning the hinge 41 by surface-abutting on an outer peripheral surface of the frame side member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a working machine including a driving unit on which a driver is boarded, a cabin that covers the driving unit, and a boarding unit that includes a boarding door that opens laterally at a boarding port of the driving unit.

  Patent Document 1 describes a self-removable combine (an example of a working machine) that includes a driving unit having a driver's seat and a cabin that covers the driving unit from above. A passenger door (an example of a boarding door) is provided at one side of the cabin of the self-detaching combine in the left-right direction of the machine body. The passenger door is swingably supported on the right rear column by a pair of upper and lower hinges (so-called hinges).

JP 2017-175950 A

  When attaching a boarding door in a working machine as described in Patent Document 1, it is necessary to adjust the position of a hinge so that the boarding door is attached to an appropriate position. Moreover, it is necessary to fix the position of the hinge so that the boarding door does not tilt even when a load is applied to the boarding door, for example, when the passenger grabs the door handle of the boarding door and climbs to the driving section. Therefore, it is desired to provide a working machine that facilitates the adjustment of the position of the hinge and prevents the displacement of the hinge.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a working machine that facilitates the adjustment of the hinge position of the boarding door and prevents the displacement of the hinge position.

  In order to achieve the above object, the working machine according to the present invention has a characteristic configuration in which a driving unit on which a driver is boarded, a cabin that covers the driving unit, and a boarding door having a lateral opening at a boarding port of the driving unit. The cabin has a frame that forms the boarding opening, and the boarding portion includes a frame side member fixed to the frame body and a door side member fixed to the boarding door. A hinge that is fixed to the frame, and a stopper that positions the hinge. The frame-side member is fixed to an outer surface of the body of the frame, and the stopper is the frame-side member. It has the contact surface which contacts the surface with respect to the outer peripheral surface and positions the hinge.

  According to the above configuration, the boarding gate is formed by the frame body such as the cabin frame of the cabin that covers the operation unit. Further, the boarding door is swingably attached to the frame body by a hinge having a frame side member fixed to the outer surface of the frame body. Thus, when the boarding door is attached to the frame body with a hinge, the contact surface of the stopper is brought into contact with the outer peripheral surface of the frame-side member of the hinge, and the stopper is moved while adjusting the position of the frame-side member. If the frame side member is fixed to the frame body, the hinge position can be easily adjusted. In addition, it is possible to prevent displacement after the position is adjusted and the hinge is fixed.

  The further characteristic structure of the working machine which concerns on this invention exists in the point to which the said contact surface is contacting the bottom part of the said frame side member.

  According to the said structure, a frame side member can be supported toward the inner side of a boarding opening from a downward direction with a stopper. Thereby, the hinge can be slid on the stopper to easily adjust the position in the left-right direction. Moreover, it is possible to prevent the hinge from being displaced from the inside of the boarding opening to the lower side (outside of the boarding opening) after the hinge is fixed.

  The further characteristic structure of the working machine which concerns on this invention exists in the point to which the said contact surface is contacting the side part of the said frame side member.

  According to the said structure, a frame side member can be supported toward the inner side of a boarding entrance from a side with a stopper. This makes it easy to adjust the vertical position by sliding the hinge along the stopper. In addition, it is possible to prevent the hinge from being displaced from the inside of the boarding entrance to the side (outside of the boarding entrance) after fixing the hinge.

  A further characteristic configuration of the working machine according to the present invention is that the stopper is detachable from the frame.

  According to the said structure, after adjusting the position of a hinge with a stopper, a stopper can be removed from a frame as needed. For example, after fixing the hinge by adjusting the position with the stopper for position adjustment, it is possible to remove the position adjustment stopper and replace it with the position fixing stopper to firmly fix the hinge position etc. Become.

  According to a further characteristic configuration of the working machine according to the present invention, the stopper includes a first plate portion having the contact surface at a plate end portion, and a second plate portion integrated with the first plate portion, The first plate portion has a first surface along the outer surface of the frame body, and the second plate portion has a second surface along the outer peripheral surface of the frame body, and is fixed to the frame body. It is in the point.

  According to the above configuration, the stopper is formed in, for example, an L-shape having one end at the first plate portion and the other end at the second plate portion. Then, with the first plate portion having the contact surface positioned on the outer side of the frame body and the second plate portion positioned on the outer peripheral side of the boarding opening in the frame body, the first surface is outside the frame body. It is possible to stably and firmly fix the stopper to the frame body along the side surface and along the second surface along the outer circumferential surface of the frame body (a surface located on the outer circumferential side of the boarding entrance). . The hinge can be reliably fixed by abutting the contact surface of the stopper fixed to the frame body stably and firmly on the outer peripheral surface of the frame side member.

  It is possible to provide a working machine that facilitates the adjustment of the hinge of the boarding door and prevents the positional deviation of the hinge.

It is a right view which shows the whole combine. It is a top view which shows the whole combine. It is sectional drawing of the top view which shows the structure of a cabin, etc. It is sectional drawing of right view which shows a cabin, the structure of a storage chamber, etc. It is sectional drawing of the back view which shows the structure of a cabin, a storage chamber, etc. It is a perspective view explaining the structure of a footrest. It is a perspective view which shows the structure of a maintenance port, a cover, etc. It is sectional drawing of the top view which shows a maintenance port, the structure of a cover, etc. It is sectional drawing which shows the structure around the corner | angular part of an engine bonnet. It is sectional drawing of the top view which shows the structure of a boarding door, a hinge, and a door seal. It is a perspective view which shows structures, such as a hinge, a stopper, and a frame. It is sectional drawing of the top view which shows the structure of a boarding door, a hinge, and a door seal. It is explanatory drawing about positioning of a hinge and a boarding door. It is a left view which shows the structure etc. of side glass. It is sectional drawing of the top view which shows the structure etc. of side glass. It is sectional drawing of the back view which shows the structure etc. of a front glass and a front sealing material. It is sectional drawing of the back view which shows the structure etc. of back glass and a back sealing material. It is sectional drawing of the back view which shows the structure etc. of an accommodating chamber, and the flow of air. It is sectional drawing of the top view which shows the position of a communication port, a structure, etc. It is a perspective view which shows another structures etc., such as a hinge, a stopper, a flame | frame. It is a perspective view which shows another structures etc., such as a hinge, a stopper, a flame | frame. It is a perspective view which shows another structures etc., such as a hinge, a stopper, a flame | frame. It is a perspective view which shows another structures etc., such as a hinge, a stopper, a flame | frame.

[Description of Embodiment]
Hereinafter, a working machine according to the present invention will be described with reference to FIGS.

〔overall structure〕
FIG. 1 and FIG. 2 show a self-removing combine harvester that harvests planted cereal grains while traveling as an example of a working machine according to the present invention.

  In this embodiment, when defining the front-rear direction of the combine 100, it is defined along the airframe traveling direction in the working state. When defining the left-right direction of the combine 100, the left-right direction is defined in a state viewed in the aircraft traveling direction. That is, the direction indicated by reference numeral (F) in FIGS. 1 and 2 is the front side, and the direction indicated by reference numeral (B) is the rear side. In FIG. 2, the direction indicated by the symbol (L) is the left side, and the direction indicated by the symbol (R) is the right side. Note that the vertical direction of the combine 100 is defined as a vertical direction.

  As shown in FIGS. 1 and 2, the combine 100 is placed on the body frame 1 (airframe) in order from the front side F toward the rear side, the harvesting unit 19 for harvesting and harvesting the planted cereals, and the operation on which the operator is boarded. The storage chamber 15 which accommodated the part 2, the engine 3a (refer FIG. 4), and the storage tank 15 which stores a crop are provided. The body frame 1 is supported by a crawler type traveling device 18. The driving unit 2 includes a driving seat 22 on which an occupant sits, a footrest 25, and the like. The driving unit 2 is covered with a cabin 7 having a boarding unit 4. The inside of the cabin 7 is a cab S (see FIG. 3 and the like). The boarding unit 4 includes a boarding door 40 that opens laterally at the boarding port 40a that enters the cab S. The storage chamber C is provided below the operation unit 2. In addition, the storage chamber C is covered with a dustproof case 8 having a dustproof filter 80 from the right lateral outer side of the body.

  The storage chamber C is partitioned into an engine room C1 and a capacitor chamber C2 as shown in FIGS. The engine 3a is housed in the engine room C1 together with a radiator 36 that is a heat exchanger of the engine 3a. The engine room C1 is partitioned from the cab S and the capacitor room C2 by the engine bonnet 31. The capacitor room C2 is partitioned by the cab S and a wall 7c. The condenser room C2 accommodates a condenser 39, which is a heat exchanger of an air conditioner (so-called air conditioner) in the cab S.

  As shown in FIGS. 1 and 2, the harvested product harvested by the harvesting unit 19 is transferred to the threshing device 6 behind the transport unit 19 a via the transport unit 19 a on the left side of the boarding unit 4 (cabin 7) and slightly on the rear side. Be transported. The harvest is handled and processed by the threshing device 6, transported to the storage tank 15 on the right side of the threshing device 6, and temporarily stored. The harvested product stored in the storage tank 15 is transported from the storage tank 15 by a vertical screw conveyor 15c that transports the harvested product upward in accordance with an operator's instruction, and is discharged from the discharge port 15b via the carry-out cylinder 15a. It is discharged outside. The storage tank 15 is pivotable so that the space between the storage chamber C and the storage tank 15 is opened with the rear rotational axis X as an axis. As a result, maintenance of the storage chamber C or the devices disposed between the storage chamber C and the storage tank 15 is possible.

[Configuration of each part]
As shown in FIGS. 3 and 4, the driving unit 2 includes a driver seat 22 on which a passenger is seated, a wall body such as a floor board 21 that serves as a floor of the driver's cab S, a footrest 25 placed on the floor board 21, an operator Has an operation interface for operating the combine 100, an air blower (not shown) of an air conditioner in the cab S, and the like. The driver seat 22 is placed on the engine bonnet 31. The operation unit 2 is supported by the body frame 1 via a plurality of vertical frames that are erected with the lower end fixed to the body frame 1. The cab S of the driving unit 2 is a space partitioned by the cabin 7, the wall 7c, the floor board 21, and the like.

  As shown in FIG. 6, the footrest 25 is a scaffold for a passenger sitting on the driver's seat 22 (see FIG. 3 and the like) to take a comfortable posture during driving operation. The footrest 25 includes an angular U-shaped fixed seat 25a that is fixed to the floor plate 21 and opens upward, a support 25b that is supported by the front wall of the cabin 7 and reinforces the fixation of the fixed seat 25a, and an occupant Has a pair of left and right coupling tools 25c for coupling the scaffold plate 25f on which the foot is placed to the fixed seat portion 25a. The installation height with respect to the floor board 21 of the scaffold board 25f is performed by changing the connection position of the connection tool 25c and the fixed seat part 25a.

  The fixed seat portion 25a has a plurality of mounting holes 25h penetrating in the left-right direction at both planar end portions bent at both ends of the plate material upward. Both end portions of the fixed seat portion 25a are provided so that their surfaces are oriented along the normal in the left-right direction.

  The connector 25c is an L-shaped plate material, and one end extends downward and the other end extends rearward. A plate portion extending below the connector 25c is connected to the fixed seat portion 25a, and the plate portion extending rearward supports the scaffold plate 25f. A nut is welded to the left side surface of the plate portion extending downward from the connector 25c, and a bolt can be inserted from the right side. The connector 25c is in contact with the left side surface of both ends of the fixed seat portion 25a. The connecting tool 25c is fixed to the fixed seat 25a at a desired height by inserting a bolt from the right side where the boarding door 40 is located into the mounting hole 25h of the desired height and screwing it into the nut of the connecting tool 25c. Is done. Accordingly, the occupant can adjust the position of the scaffolding plate 25f to a comfortable height, and at the time of adjusting the position, the passenger can open the boarding door 40 and, for example, reach out from the boarding port 40a and perform bolt installation work. High nature.

  As shown in FIGS. 7 and 8, a heat insulating material 31 b such as glass wool is attached to the inner surface of the operator cab S of the operating unit 2 in the metal plate 31 t of the engine bonnet 31. Further, a finish sheet 31a mainly composed of, for example, vinyl chloride is attached to the surface inside the cab S of the heat insulating material 31b for the purpose of improving the design and airtightness in the cab S.

  A part of the engine bonnet 31 is provided with a maintenance port 32p for performing maintenance of the engine room C1 from the inside of the cab S, and the maintenance port 32p is sealed with a lid 32. The lid 32 has an outer lid portion 32a that covers the maintenance port 32p up to the edge portion 32f of the opening, and 32b that is inserted into the maintenance port 32p. A finishing sheet 31a is attached to the outer lid portion 32a from the surface to the back side of the edge portion of the outer lid portion 32a, and has a so-called walnut structure. Thereby, since the outer peripheral part of the outer cover part 32a is also covered with the finishing sheet 31a, the designability improves.

  As shown in FIG. 8, the heat insulating material 31b is not attached to the edge portion 32f of the maintenance port 32p. As a result, when the maintenance port 32p is sealed with the lid 32, the surface of the finishing sheet 31a of the engine bonnet 31 and the surface of the finishing sheet 31a of the lid 32 are smoothly integrated visually to improve design. To do.

  As shown in FIG. 9, a corner 31 c formed by bending a metal plate 31 t is formed on a part of the engine bonnet 31. The design around the corner 31c is enhanced by, for example, overlapping the finishing sheet 31a in two layers. In FIG. 9, the heat insulating material 31b on the top plate side above the engine bonnet 31 is pasted while being limited to a range slightly inside the top plate, and the heat insulating material 31b on the side wall side of the engine bonnet 31 is attached to the side of the wall surface. The case where it sticks to the range which reaches a little to the top plate side of the corner | angular part 31c is shown in figure. The finishing sheet 31a on the top plate side of the engine bonnet 31 and the finishing sheet 31a on the ridge wall side overlap at the corner portion 31c so that the finishing sheet 31a on the top plate side is on the surface side. Thereby, the finishing sheet 31a is smoothly stuck in the corner | angular part 31c, and the designability improves.

  As shown in FIGS. 3, 4, 14, and the like, the cabin 7 includes a riding part 4, a roof 7 a covering the upper part of the driving part 2, a boarding door 40 with a window, a windshield 7 b, a left side glass 75, and a right rear A rear frame 76, a floor plate 21 serving as a floor of the cab S, a vertical frame that is a plurality of frames such as a right front column 71 and a rear column 72, a left column (not shown), and the rear surface of the driving unit 2. It has the other wall body which surrounds the operation parts 2, such as the wall part 7c. The roof 7a is supported by the body frame 1 through these vertical frames. Between the right front column 71 and the right rear column 72 is a boarding gate 40a. In the present embodiment, the front strut 71, the rear strut 72, the frame extending in the front-rear direction supporting the roof 7a, the floor plate 21, and the frame extending in the front-rear direction supporting the rear strut 72 and the floor plate 21 are used. The inside enclosed by the diagonal frame 73 bridge | crosslinked between is the boarding opening 40a. A door seal 40c that tightly contacts the door frame 40b of the boarding door 40 and seals the cab S is attached to the inner peripheral surface of the boarding port 40a.

  As shown in FIG. 1, the boarding unit 4 includes a side-opening boarding door 40 of a boarding opening 40 a that enters the cab S, a hinge 41 that supports the boarding door 40 in a swingable manner, and the like. The boarding door 40 is supported by the rear column 72 so as to be swingable via a hinge 41 integrated with the upper and lower sides. A stopper 45 abuts on the hinge 41 from below and is positioned (see FIG. 11). A lower hinge 41 (hereinafter simply referred to as a hinge 41) is attached adjacently above the connecting portion of the rear column 72 and the diagonal frame 73 in the rear column 72. The boarding door 40 is curved so that the upper and lower central portions of the cabin 7 bulge outward (right side) of the cab S with respect to the upper end portion and the lower end portion of the cabin 7 in a front view.

  As shown in FIG. 10, the door seal 40c is formed of an elastic member such as rubber. The door seal 40c includes a fixing portion 40d for fixing the door seal 40c to the frame of the boarding opening 40a such as the rear column 72, and extends outward from the fixing portion 40d. When the boarding door 40 is closed, the door seal 40c closely And a sealing portion 40e in contact therewith. The seal portion 40e has a circular cross section that intersects the extending direction and is hollow. As shown in FIG. 12, the seal portion 40e urged by the door frame 40b is deformed and tightly seals with the door frame 40b. The seal portion 40e is brought into contact with the door frame 40b from the side surface. As a result, the repelling force of the door seal 40c (the force that biases the boarding door 40 in the opening direction) can be lowered to facilitate the opening / closing of the boarding door 40, and the airtightness in the closed state of the boarding door 40 can be ensured. is there.

  As shown in FIGS. 10 to 13 and the like, the hinge 41 includes a frame side member 42 fixed to the rear column 72 with a bolt or the like, and a door side member 43 fixed to the boarding door 40. The frame side member 42 and the door side member 43 are metal plates having at least a rectangular plate portion 42a and a plate portion 43a. In the present embodiment, the frame-side member 42 has a shaft pin 42c that stands up in the vertical direction on a plate portion 42b that bends and extends from the plate portion 42a. The door-side member 43 has a bearing portion 43c having a through hole along the vertical direction formed by winding a plate portion extending from the plate portion 43a into a cylindrical shape. By inserting the shaft pin 42c through the through-hole of the bearing portion 43c, the frame side member 42 and the door side member 43 are connected so as to be swingable about the shaft pin 42c as a rotation axis.

  The frame side member 42 is fixed to the body outer surface of the rear column 72 in a state where the longitudinal direction of the plate portion 42a is along the vertical direction and the plate portion 42b extends outward (right side). The frame side member 42 is attached adjacently above the connection portion of the rear column 72 and the oblique frame 73 in the rear column 72. The door-side member 43 is a fuselage of a door frame 40b that extends in the vertical direction on the rear side of the boarding door 40 in a state where the longitudinal direction of the plate portion 43b is along the vertical direction and the bearing portion 43c is positioned on the outer side (right side). It is fixed to the outer surface with bolts.

  As shown in FIGS. 11 and 13, the stopper 45 has at least a first plate portion 46 and a second plate portion 47. The first plate portion 46 and the second plate portion 47 are integrally formed. The stopper 45 is attached adjacent to the lower part of the connecting portion between the rear column 72 and the oblique frame 73 after the oblique frame 73.

  The second plate portion 47 has a plate portion, and the surface of the plate portion (an example of the second surface) is aligned with the outer peripheral surface of the boarding opening 40a in the oblique frame 73 (the surface on the rear side of the oblique frame 73). In the state, it is detachably fixed to the oblique frame 73 with a bolt or the like. As a result, the stopper 45 is fixed to the oblique frame 73. That is, the stopper 45 is fixed to the rear column 72 to which the frame side member 42 is fixed via the oblique frame 73.

  The first plate portion 46 has a plate portion, and the surface of the plate portion (an example of the first surface) is in a state along the body outer surface of the rear column 72. The upper end of the plate portion of the first plate portion 46 is a contact surface formed in a flat shape, and is in contact (per surface) with the lower end (bottom portion) of the frame side member 42. Thereby, the frame side member 42 is supported by the 1st board part 46 from the downward direction, and the hinge 41 and the boarding door 40 are positioned in an up-down direction. If the frame side member 42 is slid in the front-rear direction along the contact surface, the hinge 41 and the boarding door 40 can be easily positioned in the front-rear direction. This positioning is adjusted so that the seal portion 40e contacts the door frame 40b from the side surface.

  As shown in FIGS. 14 to 17, the side glass 75 is a horizontal sliding window provided on the left side surface of the cabin 7. The side glass 75 includes a rectangular window frame 75a, a pair of left and right groove-like rails 75b provided inside the upper and lower frames of the window frame 75a, a pair of front and rear front glasses 75f and 75r, and a front glass 75f. And a pair of front and rear sealing materials 75α and 75β corresponding to the rear glass 75r.

  The front glass 75f slides back and forth along the inner (right) rail 75b. The rear glass 75r slides back and forth along the outer (left side) rail 75b. That is, the rear glass 75r is disposed outside the front glass 75f. The closed state of the side glass 75 (the front glass 75f and the rear glass 75r) is a state in which the front glass 75f is in contact with the front end of the window frame 75a and the rear glass 75r is in contact with the rear end of the window frame 75a.

  The rear glass 75r in the closed position is closer to the transport unit 19a (see FIG. 2) than the front glass 75f in the closed position, but the rear glass 75r is outside the front glass 75f. Due to the arrangement, dust such as rice husks scattered from the conveying portion 19a is less likely to accumulate on the lower rail 75b.

  As shown in FIGS. 16 and 17, the front sealing material 75α and the rear sealing material 75β are formed of an elastic material such as rubber. The front sealing material 75α and the rear sealing material 75β have an L-shaped cross section in which one end of two rectangular plate-like elastic members are connected to each other.

  In the front sealing material 75α and the rear sealing material 75β, an L-shaped inner surface on one end side of the L-shape is fixed to the outer (left) side surface of the lower window frame 75a by bonding or the like. The front sealing material 75α and the rear sealing material 75β are in a state where the L-shaped inner side is pushed open against the elastic force of the elastic material, and the L-shaped inner side on the other end side of the L-shaped is the front glass 75f or the rear glass. It is attached so as to press tightly against 75r. Thereby, since the rail 75b is covered with the front sealing material 75α and the rear sealing material 75β, dust such as rice husks can be prevented from accumulating on the rail 75b. Further, when the cabin 7 is washed with water from the outside, it becomes possible to prevent the washing water from entering the cab S.

  As shown in FIG. 15 and the like, the front sealing material 75α extends from the front end of the window frame 75a to the front end of the rear glass 75r in the closed state. The rear sealing material 75β extends from the rear end of the window frame 75a to the front end of the rear glass 75r in the closed state. The front sealing material 75α overlaps with the closed front glass 75f when viewed in the left-right direction. The rear sealing material 75β overlaps the closed rear glass 75r in the left-right direction view. When the side glass 75 is in the fully closed state, the front sealing material 75α and the rear sealing material 75β are in contact with the front glass 75f and the rear glass 75r, respectively. A corner 75γ above the rear end on the other end side of the L-shape of the front sealing material 75α is chamfered. Although FIG. 15 illustrates a case where the corner 75γ is rounded, it may be chamfered. By such chamfering, the rear glass 75r can be slid forward to reduce the sliding resistance when the rear glass 75r is in sliding contact with the front seal member 75α.

  As shown in FIGS. 3 and 5, the rear glass 76 is a window formed of glass, transparent acrylic, or the like provided on the wall 7 c on the back surface of the operation unit 2. The rear glass 76 is provided on the right rear side of the cabin 7. A passenger seated on the driver's seat 22 can view the precleaner 34 described later via the rear glass 76. The rear glass 76 has a first glass surface 76a along which the normal line extends in the front-rear direction, and a second glass surface 76b connected to the first glass surface 76a via the window corner portion 76r and along which the normal line extends in the left-right direction. The rear glass 76 has an L shape in which a cross section viewed in the vertical direction is recessed toward the inside of the cab S. An L-shaped bent portion of the rear glass 76 is a window corner portion 76r. The window corner 76r is formed with a small bending radius (bending radius (L-shaped inner radius)) of about 5 mm to 15 mm. Therefore, the rear glass 76 secures wide flat portions as the first glass surface 76a and the second glass surface 76b, and the bent portion (window corner portion 76r) whose view is distorted is devised. Thereby, when the passenger seated on the driver's seat 22 views the precleaner 34 through the rear glass 76, the operator's field of view is not distorted and is comfortable.

  As shown in FIGS. 4, 5, 18, etc., the storage chamber C is covered with a dustproof case 8 having a dustproof filter 80 from the outer right side of the aircraft body. The dust filter 80 allows air to pass and does not allow dust such as sawdust to pass. As the dustproof filter 80, for example, a porous material such as a wire mesh or a punching plate is used. The dust-proof case 8 has an upper opening 8U and a lower opening 8L in the frame 8a. The opening 8U and the opening 8L overlap with the dust filter 80 when viewed in the left-right direction. The engine room C1 overlaps the opening 8L in the left-right direction and communicates with the outside through the opening 8L. The capacitor chamber C2 overlaps the opening 8U in the left-right direction and communicates with the outside through the opening 8U. Hereinafter, the dust filter 80 that overlaps the opening 8U in the left-right direction is referred to as a second dust filter unit 80U, and the dust filter 80 that overlaps the opening 8L in the left-right direction is referred to as a first dust filter unit 80L.

  In the storage chamber C, an air cleaner 33 for removing dust from the pre-cleaner 34 that removes dust such as saw dust and rice husk contained in the outside air and supplying the dust to the engine 3a, and a condenser of an air conditioner in the cab S 39, the second blower 38 of the condenser 39, the driving section 3 and the like are accommodated. Among these, the air cleaner 33, the condenser 39, and the second blower 38 are accommodated in the condenser chamber C2. The prime mover 3 is accommodated in the engine room C1. As shown in FIG. 5 and the like, the pre-cleaner 34 is located behind the wall 7c on the back surface of the operation unit 2 and outside the right side of the fuselage, that is, behind the rear glass 76, below the roof 7a, and in the storage chamber. It is arrange | positioned on the wall part which covers the upper direction of C.

  As shown in FIGS. 5, 18, and the like, the prime mover 3 includes an engine 3 a that is an internal combustion engine serving as a power source, a first blower 37 that cools the engine 3 a and the radiator 36 of the engine 3 a, and the like. Have. From the dust-proof case 8 toward the left side, the radiator 36, the shroud 37a for guiding air from the radiator 36 to the first blower 37, the first blower 37, and the engine 3a are arranged in this order.

  The first blower 37 is driven to rotate by an electric motor or the like. The first blower 37 sucks outside air through the dust filter 80 and blows (blows out) air toward the engine 3a, and a second operation mode blows (blows out) air toward the dust proof case 8. Operates in operation mode. The first operation mode and the second operation mode can be changed in accordance with an instruction from a central controller (not shown) of the combine 100. For example, the first blower 37 can be switched between the first operation mode and the second operation mode by switching the rotation direction of the electric motor between normal rotation and reverse rotation.

  In the capacitor chamber C <b> 2, the second blower 38 cools the capacitor 39 by sucking outside air from the first dust filter 80 </ b> L and blowing (blowing) air toward the capacitor 39. The capacitor 39 is disposed at the rear part of the capacitor chamber C2. The second blower 38 is disposed between the air cleaner 33 and the condenser 39. The air blown to the condenser 39 by the second blower 38 is discharged into the space between the condenser 39 and the storage tank 15 (see FIG. 1). The second blower 38 operates (rotates) and stops according to the use state of the occupant's air conditioner, but stops rotating when the first blower 37 operates in the second operation mode.

  As shown in FIG. 19, a partition wall 74 having a communication port 30 that communicates the engine room C1 and the capacitor chamber C2 is provided on the side of the dust proof case 8 (outside the right side of the fuselage) of the engine bonnet 31 in the storage chamber C. ing. The partition wall 74 is mounted on a horizontal frame 73a that is bridged between the oblique frame 73 and the vertical frame 73b of the capacitor chamber C2.

  The communication port 30 is a through hole that penetrates the engine bonnet 31 in the storage chamber C in the vertical direction. An internal filter 35 having a filter material such as a metal net reinforced with a frame material such as a metal plate or a punching metal is detachably attached to the communication port 30. The internal filter 35 allows passage of air and does not allow passage of dust such as sawdust. As a result, even if the engine room C1 is contaminated with dust and flows into the condenser chamber C2 from the engine room C1, the air is filtered by the internal filter 35. Contamination of the capacitor chamber C2 can be avoided. In the present embodiment, the case where a pair of front and rear connection ports 30 are provided is illustrated, but one or three or more connection ports 30 may be provided.

  The flow of air in the storage chamber C will be described. As shown in FIG. 18, when the second blower 38 is operating in the first operation mode, the outside air is sucked by the second blower 38 through the second dustproof filter unit 80U. When the second blower 38 is stopped in the first operation mode, outside air is sucked through the first dust-proof filter portion 80L, and suction of the first blower 37 through the internal filter 35 of the communication port 30 Outside air is sucked through the second dustproof filter 80U. Therefore, in the first operation mode, the clogging of the first dustproof filter unit 80L and the second dustproof filter unit 80U proceeds.

  On the other hand, in the second operation mode, the second blower 38 is stopped and the first blower 37 is blowing air toward the dustproof case 8. A part of the air blown toward the dustproof case 8 by the first blower 37 is exhausted from the engine room C1 toward the outside through the first dustproof filter portion 80L. The other part is filtered through the internal filter 35 and flows into the capacitor chamber C2, and is further exhausted from the capacitor chamber C2 to the outside through the second dustproof filter unit 80U. Thereby, in the second operation mode, air flows in the reverse direction to the first dust filter unit 80L and the second dust filter unit 80U and is regenerated (so-called back-flow cleaning). In the present embodiment, the central control unit alternately switches between the first operation mode and the second operation mode at a predetermined timing. As the predetermined timing, for example, every 60 seconds in the first operation mode, the second operation mode is repeated for 10 seconds, the execution of the first operation mode is resumed, and the following operation is repeated. I do.

  As described above, it is possible to provide a working machine that facilitates the adjustment of the hinge position of the boarding door and prevents the hinge from being displaced.

[Another embodiment]
(1) In the said embodiment, the upper end of the board part of the 1st board part 46 became the contact surface formed in planar shape, and illustrated the case where it contact | abuts to the lower end of the frame side member 42. However, the first plate portion 46 is not limited to the case where the first plate portion 46 is in contact with the lower end of the frame side member 42.

  For example, as shown in FIG. 20, the front end of the plate portion of the first plate portion 46 may be formed in a flat shape to be a contact surface and contact the rear end (side portion) of the frame side member 42. In this case, the frame side member 42 is supported from behind by the first plate portion 46, and the hinge 41 and the boarding door 40 are positioned in the front-rear direction. If the frame side member 42 is slid in the vertical direction along the contact surface, the hinge 41 and the boarding door 40 can be easily positioned in the vertical direction.

  Furthermore, as shown in FIG. 21, the upper end and the front end of the plate portion of the first plate portion 46 are formed in an L-shaped plane so as to be in contact with the lower end and the rear end of the frame side member 42. May be.

(2) In the above embodiment, the case where the second plate portion 47 is fixed to the rear strut 72 to which the frame side member 42 is fixed via the oblique frame 73 has been described. However, as shown in FIGS. 22 and 23, the second plate portion 47 may be directly fixed to the rear column 72.

(3) In the above-described embodiment, the second plate portion 47 is detachably fixed to the oblique frame 73 with bolts or the like, and with respect to the rear strut 72 to which the frame side member 42 is fixed via the oblique frame 73. The case where it is fixed is explained. However, the second plate portion 47 is not limited to being attachable / detachable, and may be fixed to the oblique frame 73 and the rear column 72 so as not to be attachable / detachable by welding or the like.

  Note that the configurations disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in the other embodiments as long as no contradiction arises. The embodiment disclosed in this specification is an exemplification, and the embodiment of the present invention is not limited to this. The embodiment can be appropriately modified without departing from the object of the present invention.

  The present invention can be used as a work machine such as a combine machine, a paddy field work machine, or a tractor.

2: Driving part 4: Boarding part 7: Cabin 8a: Frame body 40: Boarding door 40a: Boarding door 41: Hinge 42: Frame side member 43: Door side member 45: Stopper 46: First plate part 47: Second plate Part

Claims (5)

A driving section on which the pilot boarded,
A cabin covering the operating section;
A boarding part having a side-opening boarding door at the boarding gate of the driving part,
The cabin has a frame that forms the boarding gate,
The boarding unit includes a hinge having a frame side member fixed to the frame body and a door side member fixed to the boarding door, and a stopper fixed to the frame body and positioning the hinge. ,
The frame side member is fixed to the outer surface of the frame body,
The stopper has a contact surface that contacts the outer peripheral surface of the frame side member and positions the hinge.   The work machine according to claim 1, wherein the contact surface is in contact with a bottom portion of the frame side member.   The work machine according to claim 1, wherein the contact surface is in contact with a side portion of the frame side member.   The work machine according to any one of claims 1 to 3, wherein the stopper is detachable from the frame. The stopper includes a first plate portion having the contact surface at a plate end portion, and a second plate portion integrated with the first plate portion,
The first plate portion has a first surface along the outer surface of the frame body,
5. The work machine according to claim 1, wherein the second plate portion has a second surface along an outer peripheral surface of the frame body, and is fixed to the frame body.

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