JP2008018902A - Cabin of working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily adjust a jet position of a washer nozzle in a working vehicle having a cabin. <P>SOLUTION: In a working vehicle having a cabin C, a hand catcher 32 is mounted to one of right and left front stays 11F of the cabin C, a front supporting pipe 33 extends to right and left sides from a vertically middle portion of the front stay 11F, and a washer nozzle 38 is provided at its fore end. The front supporting pipe 33 is supported by a supporting arm 32a extending from the hand catcher 32, and a washer liquid is fed to the washer nozzle 38 via a washer hose 37 in the front stay 11F and the front supporting pipe 33. The washer liquid is jetted from the washer nozzle 38 toward the front glass 14 of the cabin C. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cabin of a work vehicle for agriculture, construction, transportation, or the like.

A wiper device for a cabin window such as an agricultural tractor is provided with a wiper arm with a wiper blade on the windshield so that it can pivot back and forth, and a hole is formed on the upper side of the windshield to attach a washer nozzle. An apparatus for ejecting a washer liquid is known (Patent Document 1).
JP 2006-27507 A (FIG. 10)

  As described above, the attachment of the washer nozzle with a hole in the peripheral portion of the front glass of the cabin has a problem that it is difficult to adjust the injection position. Therefore, the present invention is intended to solve such a problem.

  According to the first aspect of the present invention, in a work vehicle having a cabin (C), a hand catcher (32) is attached to the left and right front struts (11F) of the cabin (C), and the upper and lower middle portions of the front struts (11F) The front support pipe (33) extends from the left and right sides, and a washer nozzle (38) is provided at the tip thereof. The front support pipe (33) is supported by the support arm (32a) extended from the hand catcher (32). The washer fluid is sent to the washer nozzle (38) via the washer hose (37) in the front support post (11F) and the front support pipe (33), and the cabin (C) A work vehicle cabin characterized by being configured to inject washer fluid from a washer nozzle (38) toward the front glass (14); That.

  According to the said structure, the hand catcher (32) is attached to the right or left front support | pillar (11F) of a cabin (C), and the front support pipe (33) extended from the up-and-down middle part of the front support | pillar (11F) A washer nozzle (38) is provided at the tip of the front support pipe, and the front support pipe (33) is supported by a support arm (32a) extending from the hand catcher (32). Then, the washer fluid is sent to the front end of the front support pipe (33) through the washer hose (37) disposed in the front column (11F) and the front support pipe (33), and the washer nozzle (38 ) To the front glass (14) of the cabin (C), the washer liquid is sprayed, and the wiper (41) wipes off water droplets and dirt.

  According to a second aspect of the present invention, a front work lamp (34) or a front combination lamp (35) is provided at the front end of the front support pipe (33), and a harness is provided in the front column (11F) and the front support pipe (33). The work vehicle cabin according to claim 1, characterized in that (36) is routed and connected to the front work lamp (34) or the front combination lamp (35).

  According to the said structure, in addition to the said effect | action of invention of Claim 1, the front work lamp | ramp (34) or the front combination lamp | ramp (35) is provided in the front-end | tip part of the front support pipe (33), The front support | pillar ( 11F) and the harness (36) routed in the front support pipe (33), the front work lamp (34) or the front combination lamp (35) is energized.

  Since the washer nozzle (38) is provided in the front support pipe (33) near one of the left and right handle catchers (32) on the cabin (C) side, the front glass (14) and the washer nozzle are provided. (38) is in a predetermined arrangement relationship, the ejection position can be easily adjusted, and the washer hose (37) is covered with the front strut (11F) and the front support pipe (33). The aesthetics can be improved and the durability of the washer hose (37) can be increased.

  The invention of claim 2 can improve the design of the front work lamp (34) or the front combination lamp (35) in addition to the effect of the invention of claim 1, and can prevent disconnection of the harness (36). .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall side view of a tractor T having the present invention. The tractor T includes an engine E inside the hood 1 on the front side of the vehicle body, and the rotational power of the engine E is transmitted to the rear wheels 3R and 3R via various transmissions in the transmission case 2 to travel by two-wheel drive. Or, it is configured to travel by four-wheel drive by transmitting to the front and rear wheels 3F, 3F, 3R, 3R. Further, the rotational power of the engine E is used to charge the battery 4 in front of the engine E or to circulate refrigerant and hot water of the air conditioner 21 described later. A cabin C surrounding the handle 5 and the cockpit 6 is provided behind the engine E.

  As shown in FIG. 1, the cabin C is provided with a floor 7 extending from below the handle 5 to the cockpit 6, and left and right fenders 8 and 8 are provided on the left and right sides of the rear portion of the floor 7. A cabin frame 11 is provided on the floor 7. The cabin frame 11 includes left and right front struts 11F and 11F, left and right intermediate struts 11M and 11M, left and right rear struts 11R and 11R, a flat rectangular roof frame 11U attached to the upper end and lower end of these struts, and a lower frame. 11D, and the roof 13 is attached to the roof frame 11U.

  A front glass 14 is attached between the left and right front struts 11F and 11F, a rear glass 15 is attached between the left and right rear struts 11R and 11R, and the left and right rear struts are interposed between the left and right intermediate struts 11M and 11M and the left and right rear struts 11R and 11R. Glasses 15L and 15R are attached, and left and right door glasses 16 and 16 are attached between the left and right front columns 11F and 11F and the left and right intermediate columns 11M and 11M so as to be freely opened and closed.

  As shown in FIGS. 2 and 3, the roof 13 of the cabin C is formed into a two-layered internal cavity shape by sticking up and down a plate state in which the outer roof 13a and the inner roof 13b are blow-molded with, for example, a synthetic resin material. However, the air is configured to flow. The outer roof 13a and the inner roof 13b are fixed to the roof frame 11U.

  An air conditioner 21 is provided on the roof 13. As shown in FIGS. 2 and 3, the air conditioner 21 is disposed on the inner front portion of the roof 13, and its main body is configured by a synthetic resin case 21 a, and is directed to the right side of the case 21 a toward the front of the vehicle body ( A fan 22 is disposed on the upper side of FIG. 2, an evaporator 23 is provided in the center, and a heater 24 is provided on the left side. The left and right sides of the fan 22, the evaporator 23, and the heater 24 are shifted to the front and back so as to be adjacent to each other. It arrange | positions and it is comprised so that it may superpose | polymerize partially by front view. The evaporator 23 is directed toward the rear exhaust port 21r on the rear side of the case 21a, and the heater 24 is directed toward the left side surface of the case 21a.

In addition, an air inlet 22a is opened above the fan 22 in the case 21a, and a front air outlet 21f is opened on the left side of the case 21a.
Further, as shown in FIG. 2, a front duct 25 having front defroster outlets 25a,... Is attached to the front exhaust port 21f, and a duct 26 having rear defroster outlets 26a,. Is attached. Further, the front duct 25 and the rear duct 26 are configured to taper toward the leeward side so that the ventilation volume is gradually reduced, and the wind speed blown out from the front and rear defroster outlets 25a, 25a, 26a,... Is increased. .

  In addition, an air path switching first shutter 27 that rotates about the vertical axis P1,... Is provided behind the evaporator 23, and is integrally rotated via a link mechanism by an operation lever (not shown). Thus, the air path to the rear exhaust port 21r is configured to be opened and closed. Thus, the air path switching first shutter 27,... Can be switched to select whether the air flowing from the fan 22 flows directly to the rear exhaust port 21r or to the heater 24 side.

  Further, as shown in FIG. 2, the left side of the heater 24 is also provided with an air path switching second shutter 28,... That rotates about the vertical axis P2,. By rotating integrally, it is possible to select whether the air flowing from the evaporator 23 flows to the front exhaust port 21f or the rear exhaust port 21r.

  When the interior of the cabin C is cooled, the fan 22 and the evaporator 23 are operated, and the air taken in from the air inlet 22a of the fan 22 is passed through the evaporator 23, the air path switching first shutter 27, ..., the rear air outlet 21r, and the duct 26. After that, it blows out from the defroster outlet 26a,. Further, when heating the cabin C, the fan 22 and the heater 24 are operated, and the air taken in from the air inlet 22a of the fan 22 is passed through the evaporator 23, the heater 24, the rear air outlet 21r, and the duct 26 in the non-operating state. Blow out into the cabin C from the rear defroster outlet 26a,.

  Further, when the wind or hot air is applied to the front glass 14, the fan 22 and the evaporator 23 are operated, and the air taken in from the air inlet 22a passes through the evaporator 23, the heater 24, the second shutter 28, and the front air outlet 21f. It is the structure which blows off from the defroster blower outlet 25a.

  Since the air conditioner 21 configured as described above is arranged along the oblique direction while shifting the evaporator 23 and the heater 24 back and forth, the left-right width of the case 21a can be narrowed to be compact. Further, the evaporator 23 is disposed obliquely toward the rear exhaust port 21r, and the cooled air can be exhausted into the cabin C at a short distance from the rear exhaust port 21r, so that the thermal efficiency in the cabin C can be increased. .

Next, an arrangement configuration of the front washer nozzle 38 will be described with reference to FIGS. 4 and 5.
Mirrors 31 and 31 are attached to the upper ends of the left and right front columns 11F and 11F of the cabin frame 11, and the flat U-shaped hand catcher is positioned below the mirrors 31 and 31 on the left and right front columns 11F and 11F. 32 and 32 are attached so as to protrude from the left and right sides along the vertical direction. In addition, left and right front support pipes 33 and 33 are extended from the upper and lower intermediate portions of the hand catchers 32 and 32 in the left and right front columns 11F and 11F to the left and right sides, and are supported by support arms 32a and 32a extending from the hand catchers 32 and 32. The left and right front support pipes 33 are supported.

  Further, left and right front work lamps 34 and 34 and left and right front combination lamps 35 and 35 that irradiate forward are attached to the front ends of the left and right front support pipes 33 and 33, respectively. Further, the harnesses 36,... Routed in the left and right front columns 11F, 11F are connected to the left and right front work lamps 34, 34 and the left and right front combination lamps 35, 35 through the left and right front support pipes 33, 33.

  In addition, a washer hose 37 is disposed in the left front column 11F and the left support pipe 33 and led to the tip of the left front support pipe 33, and a washer nozzle 38 is provided at the tip. For example, the cleaning liquid is sent from a washer tank (not shown) disposed below the floor 7 to the washer nozzle 38 via the washer hose 37 and sprayed to the cleaning portion of the front glass 14. Further, a wiper 41 is provided, for example, at the lower left and right central portions of the front glass 14, and the wiper operating device 42 is configured to reciprocate the wiper 41 left and right.

  If a conventional washer nozzle is attached by making a hole in the periphery of the front glass 14, it is difficult to adjust the injection position, and there is also a type in which the washer nozzle is arranged on the bonnet 1. In this type, the washer tank is a cabin. If it is on the C side, there is a problem that the wiring and assembling work of the washer hose 37 becomes complicated.

  However, according to the above configuration, the washer nozzle 38 is attached to the front support pipe 33 in the vicinity of one of the left and right handle catchers 32 on the cabin C side, so the front glass 14 and the washer nozzle 38 are in a predetermined arrangement relationship. The ejection position can be easily adjusted. Further, since the washer hose 37 is covered with the front support pipe 33, the aesthetic appearance can be improved and the durability of the washer hose 37 can be enhanced. Further, the design of the front work lamps 34 and 34 and the left and right front combination lamps 35 and 35 can be improved, and disconnection of the harnesses 36 and 36 can be prevented.

Next, a related configuration of the mirror 31 and the muffler tail pipe 57 will be described with reference to FIGS.
A muffler tail pipe 57 is disposed in the vicinity of the front right side of the right front column 11F along the vertical direction, and its exhaust port 57a is opened obliquely forward to the right side so that exhaust from the muffler 59 of the engine E is discharged. It is composed. A bracket 58 is provided on the upper right front column 11F of the cabin frame 11 so as to be positioned in the vicinity of the exhaust port 57a of the muffler tail pipe 57. The bracket 58 is provided with an inverted U-shaped mirror arm 31b and a vertical axis 31c. The mirror 31 is attached to the tip of the mirror arm 31b. Thus, the reverse U-shaped middle part of the mirror arm 31b is configured to be able to turn left and right around the tip of the muffler tail pipe 57. The muffler tail pipe 57 is covered with a cover 57b, and the left mirror 31 is similarly attached to the left front column 11F.

According to the said structure, the mirror 31 can be stored to the front position of the front glass 14 inside the left front support | pillar 11F, raising the exhaust position from the engine E. FIG.
Next, the mounting configuration of the capacitor 81 of the air conditioner 21 will be described with reference to FIGS.

  As shown in FIG. 9, a radiator 46 is provided on the front side of the engine E, a compressor 47 is provided on the rear side of the radiator 46, and a capacitor frame 49 for attaching a capacitor 48 is provided on the front side of the radiator 46. As shown in FIG. 11, the capacitor frame 49 has L-shaped left and right support bars 49a and 49a standing from the frame, and four sides in front view attached to the upper ends of the left and right support bars 49a and 49a. The frame 49b has a shape, a left-right guide plate 49c provided on the upper side of the frame 49b, and a notch groove 49d on the left side of the guide plate 49c. The capacitor bracket 50 is detachably supported on the left side with respect to the frame 49b of the capacitor frame 49.

  Further, the capacitor bracket 50 is configured to have a quadrilateral shape in front view by the left and right upper and lower frame bodies 50a, 50b, 50c, and 50d, and is configured to fit and support the capacitor 48 from the rear side. Further, guides 50e,... For inserting nets are provided on the front sides of the frames 50a, 50b, 50c, 50d, and a net 51 larger than the core area of the capacitor 48 can be removed from the guides 50e,. It is attached to.

  Further, a stepped portion 50e is formed at the lower right side of the lower frame body 50d of the capacitor bracket 50, and the left side portion is inclined downward when the capacitor bracket 50 is taken out to the left side.

  According to the said structure, when taking out the capacitor | condenser bracket 50 to the left side from the capacitor | condenser flame | frame 49 at the time of a maintenance, the left side part of the capacitor | condenser bracket 50 can fall and can be made into an inclined state. Therefore, as shown in FIG. 10, when the bonnet 1 is pivoted upward around the pin in the left-right direction with the rear upper part pivoted upward, the net 51 is pulled out from the capacitor bracket 50 obliquely to the left and the lower end of the bonnet 1 is inclined. The net 51 can be easily removed upward from between the edge 1a, the left outer surface, and the left front wheel 3F, so that the maintainability can be improved.

Next, the routing configuration of the reciprocating cooler hoses 43a and 43b and the reciprocating hot water hoses 43a and 43b will be described with reference to FIGS.
As shown in FIG. 8, the reciprocating cooler hoses 43a and 43b for circulating the refrigerant to the evaporator 23 of the air conditioner 21 in the right front column 11F, and the wiring of various electric devices attached to the fan 22 and the roof 13 (not shown). ) Is inserted and guided downward. Further, reciprocating cooler hoses 43a and 43b are extended to the front side and connected to a compressor 47, a condenser 48 and a receiver tube 45, which will be described later, in the vicinity of the engine E. Further, hot water hoses 44a and 44b for circulating hot water to the heater 24 of the air conditioner 21 are inserted into the left front support column 11F, guided downward, and further extended to the front side to be connected to the radiator 46 of the engine E. Yes.

  Further, the bonnet 1 is configured to be openable and closable by pivotally supporting the rear upper end portion thereof with a pin 1b in the left and right direction, and the lower left and right rear portions of the bonnet 1 are configured as an upward inclined portion 1a. The reciprocating cooler hoses 43a and 43b led downward from the right front column 11F are taken out from the vicinity of the pin 1b of the bonnet 1 in the middle, and supported by holders 55 and 55 on the inner side surface of the bonnet 1. It leads to the front side along the inclined portion 1a. Further, as shown in FIG. 14, the holders 55, 55 are configured by a substrate 55 a, a holder portion 55 b, and a support protrusion 55 c configured on the mounting surface of the substrate 55 a, and are formed in the holes of the holder bracket 1 d of the bonnet 1. The support protrusion 55c of the holder 55 is inserted and supported, and the holder 55 is supported so as to be rotatable around the support protrusion 55c.

According to the above configuration, when the bonnet 1 is opened, the reciprocating cooler hoses 43a and 43b are also moved upward together, and maintenance of the auxiliary equipment of the engine E can be easily performed.
Next, FIGS. 15 and 16 will be described. A rear glass 15 is provided at the rear part of the cabin C so as to be freely opened and closed. Left and right rear combination lamps 62, 62 are provided on the rear side of the rear part of the cabin C of the left and right fenders 8, 8, and the left and right rear work lamps 61, 61, the PTO cut-off switch SW1, and the work equipment lifting switch SW2 The working machine lowering switch SW3 and other switches (not shown) are provided. In addition, when the work lamp 61, the PTO switch SW1, the work implement raising switch SW2, the work implement lowering switch SW3, and other switches are provided on the left and right side portions, the irradiation direction of the work lamp 61 is set diagonally outward and left and right. The switch SW1, the work implement raising switch SW2, the work implement lowering switch SW3, and the other switches are disposed on the front side. In addition, 63 is a left-right reflecting plate.

  According to the said structure, the side view behind the vehicle at night can be ensured and it is safe, and also from the cabin C, the blinking of the combination lamps 62 and 62 can be confirmed and the steering direction can be confirmed.

  Next, the mounting structure of the rear work lamps 65,... Will be described with reference to FIGS. On the roof frame 11U at the upper rear side of the cabin C, rear work lamps 65,. A roof 13 is placed and attached to the cabin frame 11, and a bracket 67 is supported on the rear portion of the roof frame 11 U of the cabin frame 11 so as to be rotatable around the left and right pins 67 a. A sun visor (not shown) is attached, and left and right rear work lamps 65,... Are attached to arms 67b, 67b extending from the left and right sides of the bracket 67 to the left and right.

  When the rear work lamps 65,... Are attached to the roof 13, when the roof 13 is removed from the cabin C, it is necessary to remove the harnesses for the rear work lamps 65,. There was a problem that the rear work lamps 65,...

  However, according to the above configuration, the roof 13 can be attached to and detached from the roof frame 11U of the cabin C as a single item, and the bracket 67 is attached to the roof frame 11U, so The rear work lamps 65,... Can be chucked, and when the bracket 67 is removed from the cabin frame 11, the rear work lamps 65,.

Next, a configuration for attaching the roof 13 to the cabin frame 11 will be described with reference to FIGS. 19 to 21.
When the left and right side portions of the roof 13 are formed into left and right bent portions 13c and 13c that are bent downward, and the left and right bent portions 13c and 13c are placed on the left and right roof frame frames 11U and 11U of the cabin frame 11, the left and right side views are obtained. Thus, the lower end portions of the left and right bent portions 13c, 13c are positioned below the upper surfaces of the roof frames 11U, 11U, and the upper surfaces of the roof frames 11u, 11U are hidden. A plurality of fixing nuts 13d,... Are provided along the front-rear direction on the lower surfaces of the left and right bent portions 13c, 13c.

  Thus, the roof 13 is placed on the roof frames 11U and 11U, the inner portions of the bent portions 13c and 13c of the roof 13 are placed on the upper surfaces of the left and right roof frames 11U and 11U, and the lower surfaces of the bent portions 13c and 13c are placed. Roof seals 71 and 71 are fitted and inserted into the formed recesses 13d and 13d, mounting holes for fixing plates 11Ua and 11Ua provided along the front-rear direction of the roof frames 11U and 11U, and bent portions 13c, The fixing bolts 72, ... are screwed into the nuts 13d, ... 13c, and the roof 13 is attached.

  According to the above configuration, the plates Ua and 11Ua that are long in the front-rear direction are provided on the lower surfaces of the left and right bent portions 13c and 13c of the roof 13, and the upper surface portions of the left and right roof frames 11U and 11U are the bent portions 13c and 13c of the roof 13. Since it covers from both right and left sides, it is possible to prevent water from entering the cabin C even when washing with high-pressure water.

  Next, another embodiment of the roof 13 will be described with reference to FIGS. Left and right rear lops frames 75r and 75r are raised from the rear side of the mission case 2, and left and right front lops frames 75f and 75f are raised to the handle frame 76 erected from the front side of the mission case 2. A roof 13 is attached to the top of the lops frames 75f, 75f, 75r, and 75r. The roof 13 is long in the front-rear direction, and is configured to cover the pilot seat 6 part in a wide range from the front-rear.

  Left and right roof frames 11U and 11U are attached to the left and right front and rear roof frames 75f, 75f, 75r and 75r along the front and rear direction, and left and right slide rails 77 and 77 are provided on the left and right roof frames 11U and 11U. Brackets 13d and 13d are provided inside the left and right bent portions 13c and 13c, and are attached with bolts and nuts through the brackets 13d and 13d so as to be adjustable in the front-rear direction. A handle 13e is provided on the lower surface side of the roof 13.

  According to the above configuration, since the roof 13 is configured to be adjustable in the front-rear direction in the front and rear lops frames 75f, ..., 75r, ..., it is possible to prevent interference with the roof 13 when the rear working machine (not shown) is raised, Visibility defects due to the roof 13 can be eliminated.

  In addition, as shown in FIG. 25, if transparent front and rear transparent portions 13f and 13r are provided on the front and rear portions of the roof 13 with glass or acrylic material, the visibility can be improved. The front and rear transparent portions 13f and 13r are detachably fixed to the front and rear portions of the roof 13 by bolts and nuts.

Next, the floor mat 81 that covers the surface of the floor 7 will be described with reference to FIGS. 26 and 27.
The floor 7 is covered with a floor mat 81, and a water supply port 82a of a washer tank 82 and a grease-up hole (not shown) are provided below the boarding / alighting portion of the floor 7, and the floor 7 is provided with a water supply port 82a of the washer tank 82. Together, the opening 7a is configured. Further, the floor mat 81 is configured such that an annular locking convex portion 81a that matches the opening 7a of the floor 7 protrudes downward.

  According to the above-described configuration, the floor mat 81 is placed on the floor 7 and the engaging projection 81a of the floor mat 81 is fitted into the opening 7a of the floor 7, so that there is no need to provide a locking tool with a hook or the like. The displacement of the floor mat 81 when getting on and off the operator can be prevented. Further, since the annular locking projection 81a of the floor mat 81 is fitted into the opening 7a of the floor 7 so as to protrude downward, it is possible to prevent water and dust from entering from the opening 7a. it can. The water supply to the washer tank 82 is performed in a state in which the locking projection 81a of the floor mat 81 is removed and the floor mat 81 is turned up.

Overall side view of tractor Roof top view Side view of roof front side Cabin perspective view Cabin side view Front view of cabin Cabin perspective view Air conditioner perspective view Side view of the engine Perspective view of the front side of the tractor Perspective view of capacitor Perspective view of capacitor Side view of tractor Cross section and front view of bonnet and holder Rear view of cabin and fender Fender side view Cabin perspective view Perspective view of cabin frame Cabin side view Cabin perspective view Perspective view of the roof Side view of tractor Roof top view Roof cut back view Roof top view, cross-sectional view Floor plan of floor mat Cutting front view of floor and floor mat

Explanation of symbols

T tractor C cabin 11F front support 14 front glass 32 hand catcher 32a support arm 33 front support pipe 34 front work lamp 35 front combination lamp 36 harness 37 washer hose 38 washer nozzle 41 wiper

Claims (2)

  In a work vehicle equipped with a cabin (C), a hand catcher (32) is attached to one of the left and right front struts (11F) of the cabin (C), and a front support pipe (33) is installed from the middle of the front strut (11F). The front support pipe (33) is supported by the support arm (32a) extended from the hand catcher (32), the washer nozzle (38) is provided at the front end thereof, and the front support post (33) is supported. (11F) and a washer hose (37) in the front support pipe (33) so that the washer fluid is sent to the washer nozzle (38), and directed toward the front glass (14) of the cabin (C). A work vehicle cabin characterized in that the washer fluid is ejected from the washer nozzle (38).   A front work lamp (34) or a front combination lamp (35) is provided at the tip of the front support pipe (33), and a harness (36) is routed in the front strut (11F) and the front support pipe (33). The work vehicle cabin according to claim 1, wherein the cabin is connected to the front work lamp (34) or the front combination lamp (35).

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