JP2012224278A - Cabin of tractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driver of a clear view in a cabin of a tractor.SOLUTION: In a tractor cabin, a front glass 5, a rear glass 6, and a side door glass 7 are formed in an outer periphery section of a cabin room 1. An air conditioner unit 10 is arranged to overhang at the rear part of the upper end of the rear glass 6, on the upper side of a rear beam 9 of a roof frame 8, on the rear end of the cabin roof 4. The roof frame (8) for supporting the cabin roof 4 is inclined upward toward the front so that a rear pillar (13) is made lower and a front pillar (19) is made higher.

Description

  The present invention relates to a tractor cabin.

  Japanese Patent Application Laid-Open No. 2004-133867 describes a technique for providing an air conditioner unit at the rear of a cabin roof of a tractor to improve the driver's field of view.

JP 2009-255921 A

  Furthermore, it makes it a subject to make a driver | operator's visual field favorable.

  The invention according to claim 1 comprises a driver's seat (3) on the floor (2) of the cabin room (1), a cabin roof (4) on the upper side, and a windshield (1) on the outer periphery of the cabin room (1). 5) In the tractor cabin forming the rear glass (6) and the door glass (7), the rear glass (6) is arranged at the rear end portion of the cabin roof (4) at the upper part of the rear beam (9) of the roof frame (8). The air conditioner unit (10) is disposed so as to extend over the rear end of the upper end of the air conditioner), and the outlet (11) for ejecting the air sent from the air conditioner unit (10) and the duct (12) are connected to the cabin roof (4). The roof frame (8) for supporting and mounting the cabin roof (4) is lowered on the rear pillar (13) side and raised on the front pillar (19) side. Uni ago characterized by being configured to up-ramp.

  A driver who sits on the driver's seat 3 in the cabin 1 and performs a driving operation performs a predetermined tractor operation while seeing through the windshield 5, the side door glass 7, the rear glass 6, and the like. An air conditioner unit 10 is mounted at the rear end of the cabin roof 4, and adjustment air is sent from the jet outlet 11 to the cabin room 1 through the duct 12 of the cabin roof 4 and is air-conditioned by the electric power of the air conditioner unit 10. The Such an air conditioner unit 10 is supported on the upper side of the rear beam 9 of the roof frame 8 and connected to the rear beam 9 at the upper end of the rear glass 6 as well as the front glass 5 even if it is mounted in a projecting form that projects rearward long. The driver's field of view is widened by maintaining a high area.

  Furthermore, the roof frame 8 connected between the front pillars 14 and the upper ends of the rear pillars 13 is configured such that the rear end rear beam 9 part is low and the front glass part 14 side of the front end part is high. The mounting height of the air conditioner unit 10 mounted on the rear upper part of the rear beam 9 is maintained high so that the viewing area of the rear glass 14 is maintained high, and the viewing area of the windshield 14 is also maintained high. In addition, the viewing area at the upper end of the side door glass on both the left and right sides is also increased.

  According to the second aspect of the present invention, the rear glass 6 formed on the rear side of the driver's seat 3 in the cabin room 1 is arranged below the lower end portion of the rear glass 6 and the upper end portion of the rear glass 6 is the lower side of the rear air conditioner unit 10. It is formed on the rear-side upward inclined surface so as to be positioned at the part.

  Since the rear glass 6 is provided on the rear-side upward inclined surface and the upper end edge is located on the lower surface of the air-conditioning unit 10 that protrudes behind the cabin roof 4, the air-conditioning unit 10 is placed on the rear beam 9. The rear glass 6 can be mounted and supported in a stable state, and the upper end portion of the rear glass 6 can be connected and mounted as high as possible regardless of the configuration of the rear beam 9, and the upper end portion of the rear glass 6 is positioned rearward. Keep the field of view high and wide.

  According to a third aspect of the present invention, the air conditioner unit 10 is mounted on the rear part of the rear beam 9 at the rear end of the roof frame 8 and covers the outer peripheral part of the air conditioner unit 10 projecting to the rear side of the roof frame 8. The cover 15 includes the under cover 16 and the upper cover 17.

  The air conditioner unit 10 is attached to the rear upper part of the rear beam 9 so as to protrude or protrude long behind the cabin roof 4. Moreover, the bottom of the air conditioner unit 10 is covered with an under cover 16 and is covered with an upper cover 17 at the top. Accordingly, such an air conditioner cover 15 can be detachable even when the air conditioner unit 10 is attached, or the air conditioner unit 10 can be attached in a state where the under cover 16 is attached on the rear beam 9. The upper cover 17 can be attached and detached later.

  According to the first aspect of the present invention, the air conditioner unit 10 is mounted so as to protrude rearward from the cabin roof 4, so that the ceiling portion on the lower surface of the cabin roof 4 is raised to widen the front view from the windshield 5. Thus, the space above the driver's seat 3 can be maintained high, and the height of the entire cabin can be reduced, so that a compact form can be achieved. Further, since the air conditioner unit 10 is disposed outside the cabin roof 4, the noise of the air conditioner operation in the cabin room 1 can be reduced, and the driving operability and the driving environment can be improved. Therefore, the air conditioner unit 10 can be easily attached and detached.

  Further, since the cabin roof 4 is formed so that the roof frame 8 is inclined upward and downward, the roof thickness on the front end side is made thinner and the roof thickness on the rear end side is made thicker. Inside, the front view through which the windshield 5 and the side door glass 7 can be seen can be widened. The height of the cabin roof 1 on the rear beam 9 on the upper side of the rear glass 6 is formed high, and the rear side of the rear beam 9 is formed. The installation space of the air conditioner unit 10 supported by the part can be formed high, and a wide rear field of view through the rear glass 6 can be maintained.

  According to the second aspect of the present invention, the rear space 6 is inclined to the rear upper portion and is located on the lower side of the air conditioner unit 10, thereby widening the rear space of the cabin room 1 and widening the field of view of the rear working portion. In addition, it is possible to facilitate fluoroscopy.

  The invention according to claim 3 is attached to the rear beam 9 of the room frame 8 with the front end portion of the under cover 16 of the air conditioner cover 15 supported, or formed integrally from the under cover 16 and the upper cover 17. Since the air conditioner cover 15 is set so as to be fitted from the rear side, the air conditioner unit 10 can be easily attached and detached, maintained, etc., and the upper view of the rear glass 6 can be maintained widely. Can do.

The side view of a tractor cabin. The side view of the cabin frame part. FIG. The top view of a cabin roof part. The side view of the cabin which shows a part another example. The side view of the cabin which shows a part another example. The lower perspective view of a cabin roof part. The inner side perspective view of the door glass part of another example cabin. FIG.

  Based on the illustrated example, the tractor vehicle body is equipped with an engine at the front, a pair of left and right front wheels that are steered by operating the steering handle 18 on the front side of the driver's seat 3, and a transmission mechanism that is interlocked with the engine. As a configuration of a riding four-wheel traveling mode in which a rear pair of left and right rear wheels is mounted on the rear portion of the transmission case, driving is performed between the dashboard portion 19 on the vehicle body and the fender 20 on the upper rear wheel. A cabin that forms the cabin room 1 is configured to cover the seat 3 and the upper side of the floor 2 at the bottom. A work machine such as a tillage device can be attached to the rear part of the vehicle body via a lift link that is lifted and lowered by a lift arm, and farming such as tillage can be performed.

  The cabin has a floor 3 such as a step floor 21 and a seat floor on which the driver's seat 3 is mounted at the bottom, a rear wheel fender 20 on both right and left sides of the seat floor, and an inner side of the fender 20. A fender cover 23 and the like are provided, and the seat floor portion is recessed in a bucket shape, and this lower surface is placed on the upper surface of the vehicle body, and is supported and mounted. A dashboard 19 that covers the steering post 23 is provided at the center of the front side of the step floor 21 and is mounted so as to cover the rear side of the engine bonnet. There is an elevating step 24 outside the step floor 21.

  On the upper side of such a floor 3 part, a front pillar 14, a rear pillar 13, a mid pillar 25, etc. are arranged on both the left and right sides, and a girder-shaped roof is provided at the upper end of each pillar 14, 13, 25, etc. The frame 8 is attached and supported, and the cabin roof 4 is attached to the upper side. The lower end of the front pillar 14 is located on the outer side of the front end of the step floor 21, and extends between the upper end edge of the dashboard 19 at the center and the front beam 26 of the upper roof frame 8. Under glass 27 is formed on the left and right sides of the windshield 5 to form a wide field of view in front of the feet.

  A door opening is formed between the front pillar 14 and the mid pillar 25 so that the side door glass 7 can be opened and closed. The side door glass 7 has a rear edge attached to the mid pillar 25 with a hinged opening / closing hinge, and the front edge can be opened and closed inward and outward. The upper edge of the door glass 7 is formed along the lower edge of the side beam 29 of the roof frame 8, and the lower edge is formed along the door floor step floor 21 to the upper edge of the fender 20. ing. A side glass 28 is provided between the mid pillar 25 and the rear pillar 13 so as to be openable and closable. The upper end edge of the side glass 28 is formed along the lower edge of the side beam 29, and the lower end edge is formed along the upper edge of the fender 20.

  A rear glass 6 is provided between the left and right rear pillars 13 so as to be openable and closable. The upper edge of the rear glass 6 is formed along the lower edge of the rear beam 9 of the roof frame 8, and the lower edge is formed along the upper edge of a connecting bar 30 that connects the lower ends of the rear pillars 13. .

  The roof frame 8 configured at the upper ends of the pillars 13, 14, 25 and the like is configured in a girder shape in plan view. Among these, the rear beams 9, 31 and the side beams 29, 32 on both the left and right sides are arranged vertically. The upper rear beam 31 and the side beam 29 are arranged on a horizontal plane having the same height as the front beam 26, while the lower rear beam 9 and the side beam 32 are separated from the front beam 26 portion. A unit space 33 having an appropriate height for accommodating the air conditioner unit 10 is formed between the rear rear beam 31 and the upper rear beam 31, 9.

  A semi-dish-like under cover 16 is positioned below the unit space 33, and the front end edge of the sander cover 16 is supported and connected to the rear beam 9, and the left and right side edges are the upper ends of the rear pillar 13. Connect to The lower surface of the under cover 16 is formed so as to project in a substantially horizontal form behind the rear beam 9. The upper surface of the under cover 16 is fixed and supported by an arm 34 protruding rearward from the rear beam 9.

  The air conditioner unit 10 in which the blower 35, the duct 36, the heat exchanger 37, etc. are housed in the casing 38 is positioned in the unit space 33 on the under cover 16, and is mounted on the mounting arm 39 protruding rearward from the rear beam 31. The air outlet unit 40 can be opened to the cabin room 1 side and communicated with the duct 12 disposed below the cabin roof 4 to send out the adjusted air.

  The lower surface of the under cover 16 is formed and maintained as high as possible so as not to protrude below the lower edge of the rear beam 9 so that the rear view from the rear glass 6 is not obstructed. An upper cover 17 is covered and attached to the upper side of the under cover 16 to constitute an air conditioner cover 15 that covers the upper portion of the air conditioner unit 10 mounted in the unit space 33. The front end edge of the upper cover 17 is fixed to the rear beam 31 and the rear edge is connected and fixed to the rear edge of the under cover 16 so that the air conditioner unit 10 and the air conditioner cover 15 are mounted on the rear beams 9, 31 and the rear pillar 13 and the like. Install with support.

  Here, in the tractor cabin in which the driver's seat 3 on the floor 2 of the cabin room 1 is configured with the cabin roof 4 on the upper side and the windshield 5, the rear glass 6, and the side door glass 7 are formed on the outer periphery of the cabin room 1, At the rear end of the cabin roof 4, an air conditioner unit 10 is arranged on the upper part of the rear beam 9 of the roof frame 8 so as to protrude from the rear upper end of the rear glass 6, and the air sent from the air conditioner unit 10 is blown out. It is set as the structure of the air conditioner characterized by arrange | positioning the jet nozzle 11 and the duct 12 which are arranged in the cabin roof 4, and circulating and blowing in the cabin room 1. FIG.

  A driver who sits on the driver's seat 3 in the cabin 1 and performs a driving operation performs a predetermined tractor operation while seeing through the windshield 5, the side door glass 7, the rear glass 6, and the like. An air conditioner unit 10 is mounted at the rear end of the cabin roof 4, and adjustment air is sent from the jet outlet 11 to the cabin room 1 through the duct 12 of the cabin roof 4 and is air-conditioned by the electric power of the air conditioner unit 10. The

  Such an air conditioner unit 10 is supported on the upper side of the rear beam 9 of the roof frame 8 and connected to the rear beam 9 at the upper end of the rear glass 6 as well as the front glass 5 even if it is mounted in a projecting form that projects rearward long. The driver's field of view is widened by maintaining a high area. In this way, the mounting and dismounting mode of the air conditioner unit 10 supported and mounted on the rear upper portion of the rear beam 9 is simplified, and the mounting mode of the cabin roof 4 configured on the front roof frame 8 is difficult to limit. The roof 4 can be easily attached and detached.

Further, the roof frame 8 for supporting and mounting the cabin roof 4 is configured to be inclined forward so that the rear pillar 13 side is lowered and the front pillar 19 side is raised.
The roof frame 8 connected between the front pillars 14 and the upper ends of the rear pillars 13 is configured such that the rear-end rear beam 9 portion is low and the front-end windshield 14 portion side is high. The mounting height of the air conditioner unit 10 mounted on the upper rear side is kept high, the viewing area of the rear glass 14 is kept high, and the viewing area of the windshield 14 is kept high. In addition, the viewing area at the upper end of the side door glass on both the left and right sides is also increased.

  Further, the rear glass 6 formed on the rear side of the driver's seat 3 in the cabin room 1 is rearward so that the upper end of the rear glass 6 is positioned at the lower side of the rear air conditioner unit 10 with respect to the lower end of the rear glass 6. It is formed on the side rising slope.

  Since the rear glass 6 is provided on the rear-side upward inclined surface and the upper end edge is located on the lower surface of the air-conditioning unit 10 that protrudes behind the cabin roof 4, the air-conditioning unit 10 is placed on the rear beam 9. The rear glass 6 can be mounted and supported in a stable state, and the upper end portion of the rear glass 6 can be connected and mounted as high as possible regardless of the configuration of the rear beam 9, and the upper end portion of the rear glass 6 is positioned rearward. Keep the field of view high and wide.

  The air conditioner unit 10 is attached to the rear portion of the rear beam 9 at the rear end of the roof frame 8, and an air conditioner cover 15 covering the outer periphery of the air conditioner unit 10 projecting to the rear side of the roof frame 8 is attached to the under cover. 16 and an upper cover 17.

  The air conditioner unit 10 is attached to the rear upper part of the rear beam 9 so as to protrude or protrude long behind the cabin roof 4. Moreover, the bottom of the air conditioner unit 10 is covered with an under cover 16 and is covered with an upper cover 17 at the top. Accordingly, such an air conditioner cover 15 can be detachable even when the air conditioner unit 10 is attached, or the air conditioner unit 10 can be attached in a state where the under cover 16 is attached on the rear beam 9. The upper cover 17 can be attached and detached later.

  Mainly in FIG. 5, the air conditioner unit 10 is attached to a rear beam 31 at the rear end portion of the roof frame 8 extending rearward from the upper end portion of the rear pillar 13. The outer peripheral portion of the cabin unit 10 is attached by connecting an air conditioner cover 15 composed of an under cover 16 and an upper cover 17 from the rear side portion and connected to a front cover 41 portion fixed above and below the rear beam 31. The rear glass 6 has an outer peripheral edge connected to the rear pillar 13, the rear end portion of the upper roof frame 8, the rear end portion of the lower fender 20, or the connecting bar 30. In this configuration, the rear side surface is formed as a rear-side upward inclined B surface, and the upper end portion is projected rearward. The upper end edge of the rear glass 6 can be brought close to the lower surface of the air conditioner cover 15 and can be hermetically joined with a rubber damper or rubber seal 42 interposed therebetween.

  In FIG. 6, the cabin roof 4 covers the upper part of the cabin room 1, and the outer peripheral part is attached to the upper side of the front beam 26, the side beam 32, and the rear beam 31 of the cabin frame 8. The rear end edge of the cabin roof 4 can be connected to the upper surface of the front end edge of the upper cover 17 of the air conditioner cover 15 so as to overlap. The duct 12 for connecting the air outlet 40 is arranged annularly along the lower outer periphery of the cabin roof 4, and the air outlet 11 is formed in the duct 12.

  A duct 12 is integrally formed on the lower side of the cabin roof 4, and the cabin roof 4 is supported and mounted on the upper side of the roof frame 8. The configuration of the cabin roof 4 can be simplified and can be easily attached and detached. The duct 12 is arranged such that the left and right side portions of the cabin roof 4 are arranged along the inside of the left and right door glasses 7 so that the overhead space is formed directly above the driver's seat 3 in the center portion. Make the height as low as possible and compact.

  A front duct 43 is provided along the inner surface of the windshield 5 at the front side of the cabin roof 4, and the annular duct 12 is configured by communicating between the front ends of the ducts 12 on the left and right sides. Further, the audio 44 is arranged at the inner peripheral portion of the annular duct 12 at the left and right front pillar 14 side corners to maintain a wide front field of view. 45 is a side mirror attached to the front pillar 14, and 46 is a lifting handle.

  Next, mainly based on FIG. 7, the under cover 15 of the air conditioner cover 15 is configured to project rearward from the rear beam 9 at the upper end of the rear glass 6. The ejection port 48 is configured to eject from the upper rear side to the rear side surface of the rear glass 6. Reference numeral 49 denotes a wiper. 51 is a water tank, 50 is a backlight.

  Next, mainly based on FIG. 8 and FIG. 9, a wiper motor 52 is attached to the inside of each of the left and right door glasses 7 of the cabin, and a wiper 53 is provided on the outside of the door glass 7. By rotating the wiper shaft 55 connected to the wiper arm 54 through the hole and cleaning the outer surface of the door glass 7, the visibility in front of the side portion is maintained well. Reference numeral 56 denotes an inner handle of the door glass 7.

DESCRIPTION OF SYMBOLS 1 Cabin room 2 Floor 3 Driver's seat 4 Cabin roof 5 Front glass 6 Rear glass 7 Side door glass 8 Roof frame 9 Rear beam 10 Air conditioner unit 11 Outlet 12 Duct 13 Rear pillar 14 Front pillar 15 Air conditioner cover 16 Under cover 17 Upper cover

Claims (3)

The driver's seat (3) on the floor (2) of the cabin room (1) is configured with a cabin roof (4) on the upper side, the windshield (5), rear glass (6), In the tractor cabin forming the door glass (7), at the rear end of the cabin roof (4), the rear beam (9) upper part of the roof frame (8) is extended to the rear upper end of the rear glass (6). The air conditioner unit (10) is arranged, and the outlet (11) for ejecting the air sent from the air conditioner unit (10) and the duct (12) are arranged in the cabin roof (4).
A tractor cabin characterized in that the roof frame (8) for supporting and mounting the cabin roof (4) is configured to be inclined forward so that the rear pillar (13) side is lowered and the front pillar (19) side is raised. .   The rear glass (6) formed on the rear side of the driver's seat (3) of the cabin room (1), the rear glass (6) upper end portion of the rear glass (6) lower end portion and the rear air conditioner unit (10). The tractor cabin according to claim 1, wherein the tractor cabin is formed on a rear-side upward inclined surface so as to be positioned on a lower side portion.   The air conditioner unit (10) is mounted on the rear part of the rear beam (9) at the rear end of the roof frame (8) and covers the outer peripheral part of the air conditioner unit (10) projecting to the rear side of the roof frame (8). The tractor cabin according to claim 1 or 2, wherein the air conditioner cover (15) comprises the under cover (16) and the upper cover (17).

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