JP4303565B2 - Tractor cabin - Google Patents

Description

  The present invention relates to a tractor cabin structure. More specifically, the present invention relates to a technique for improving the rigidity of a cabin frame that is erected on the left and right front portions of a cabin of a tractor and supports a roof.

  Conventionally, a tractor in which a periphery of a seat on which an operator is seated is covered with a cabin is known. In such a tractor cabin, the front pillar is erected from the left and right of the front of the seat, and the rear pillar is erected from the left and right of the rear of the seat, and the roof is supported by the front pillar and the rear pillar. A transparent draft shield made of glass or resin is provided. In addition, a plate-like member called an air cut plate is provided at a connection portion between the rear end portion of the bonnet and the central lower portion of the front surface of the cabin to block noise and outside air from the bonnet into the cabin. And, one end of the pair of front center frames is fixed to the left and right side ends of the air cut plate, and the other end of the pair of front center frames is fixed to the middle part of the pair of left and right front pillars, or By mounting a single front center frame in the middle of the pair of left and right front pillars, and fixing the left and right ends of the front center frame to the middle of the pair of left and right front pillars, Strength) is improved. For example, as described in Patent Document 1.

JP 2003-175860 A

  However, as shown in FIG. 16, the conventional front center frame 181 is bent into a substantially L shape in a side view to form an upper surface 181a and a front surface 181b, and the front surface 181b is formed in a substantially "<" shape in a side view. In order to improve the strength of the front center frame 181, the front center frame 181 itself has to be made large (thick) to obstruct the operator's field of view, and the contact area with the front pillar is reduced. There is a problem that it is not easy to increase the size and it is difficult to ensure the strength of the joint by welding. In view of the situation as described above, the present invention improves the strength of the front center frame itself without interfering with the visibility of the operator and increases the area of the joint portion with the front pillar, and improves the strength of the joint by welding, A tractor with improved cabin rigidity is provided.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

According to claim 1, in the cabin (12) of the tractor (201), a pair of front pillars (40, 40) are erected on the left and right of the front portion of the cabin (12), and the left and right front pillars (40, 40) are erected. ) Between the front center frame (81) and the seal plate (82) bent in a side view and the front side of the bent portion of the seal plate. The upper and lower partition plates (83) projecting from each other and the pipe (84) fixed to the rear surface of the seal plate (82) are provided. 83a) is drilled, and the engaging portions (90a, 90a) of the mounting table (90) on which the fuel container (89) is placed are detachably provided in the through holes (83a, 83a). (90a 0a) is formed in a hook shape, mounting table (90) are those arranged on the side of the hood (6).

In claim 2, in the cabin of the tractor according to claim 1, the mounting table (90) and the front table (90) and the front lower glass (52) of the cabin (12) are not buffered. A cushioning material (91) is interposed in the contact portion between the front lower glass (52) .

According to claim 3, in the cabin (12) of the tractor (201), a pair of front pillars (40, 40) are erected on the left and right of the front portion of the cabin (12), and the left and right front pillars (40, 40) are erected. ) Between the front center frame (81) and the seal plate (82) bent in a side view and the front side of the bent portion of the seal plate. The projecting upper and lower partition plates (83) and the pipe (84) fixed to the rear surface of the seal plate (82) constitute a roof (41) that constitutes the roof of the cabin (12). A through hole (41a / 41a) is formed as a locking part, and the locking part (93a / 93a) of the mounting table (93) on which the fuel container (89) is placed in the through hole (41a / 41a). Removable Provided, engaging portion (93a · 93a) is formed in a hook shape, mounting table (93) are those arranged on the side of the hood (6).

According to a fourth aspect of the present invention, in the cabin of the tractor according to the third aspect, in the portion where the mounting table (93) passes through the upper and lower partition plates (83) of the front center frame (81), the mounting table (93) A cushioning material (94) is interposed between the contact portions of the upper and lower partition plates (83) .

  As effects of the present invention, the following effects can be obtained.

According to claim 1, in the cabin (12) of the tractor (201), a pair of front pillars (40, 40) are erected on the left and right of the front portion of the cabin (12), and the left and right front pillars (40, 40) are erected. ) Between the front center frame (81) and the seal plate (82) bent in a side view and the front side of the bent portion of the seal plate. The upper and lower partition plates (83) projecting from each other and the pipe (84) fixed to the rear surface of the seal plate (82) are provided. 83a) is drilled, and the engaging portions (90a, 90a) of the mounting table (90) on which the fuel container (89) is placed are detachably provided in the through holes (83a, 83a). (90a 0a) is formed in a hook shape, so mounting table (90) is arranged on the side of the hood (6), without the front center frame itself increases (thicker) excellent rigidity, the junction between the front pillar The contact area is large and the joint strength by welding is excellent. Therefore, it is possible to improve the rigidity (strength against torsion) of the cabin without hindering the operator's view.
Whether the operator inserts an accordion-shaped fueling nozzle into the fueling port and tilts the fuel container to supply fuel from the fuel container, or supplies fuel from the fuel container manually or using a motor-type pump. The operator can perform the refueling work in an easy posture and is excellent in workability.

In claim 2, in the cabin of the tractor according to claim 1, the mounting table (90) and the front table (90) and the front lower glass (52) of the cabin (12) are not buffered. Since the cushioning material (91) is interposed in the contact portion between the front lower glass (52), the mounting table (90) cushions the impact with the front lower glass (52) during traveling. .

According to claim 3, in the cabin (12) of the tractor (201), a pair of front pillars (40, 40) are erected on the left and right of the front portion of the cabin (12), and the left and right front pillars (40, 40) are erected. ) Between the front center frame (81) and the seal plate (82) bent in a side view and the front side of the bent portion of the seal plate. The projecting upper and lower partition plates (83) and the pipe (84) fixed to the rear surface of the seal plate (82) constitute a roof (41) that constitutes the roof of the cabin (12). A through hole (41a / 41a) is formed as a locking part, and the locking part (93a / 93a) of the mounting table (93) on which the fuel container (89) is placed in the through hole (41a / 41a). Removable Provided, engaging portion (93a · 93a) is formed in a hook shape, mounting table (93) is so arranged on the side of the hood (6), the operator insert the bellows-like oil supply nozzle filler opening Whether the fuel container is tilted and fuel is supplied from the fuel container, or the fuel is supplied from the fuel container using a manual or motor-type pump, the operator can perform the refueling work in an easy posture. And excellent workability. Further, since the mounting table is formed by bending a bar, the view of the operator in the cabin is not obstructed even when the mounting table is locked.
Whether the operator inserts an accordion-shaped fueling nozzle into the fueling port and tilts the fuel container to supply fuel from the fuel container, or supplies fuel from the fuel container manually or using a motor-type pump. The operator can perform the refueling work in an easy posture and is excellent in workability.

According to a fourth aspect of the present invention, in the cabin of the tractor according to the third aspect, in the portion where the mounting table (93) passes through the upper and lower partition plates (83) of the front center frame (81), 93) and the upper and lower partition plates (83) between the abutting portions, since the cushioning material (94) is interposed, it occurs between the upper and lower partition plates (83) and the mounting table (93) during traveling. It is possible to buffer the impact.

  Below, the whole structure of the tractor 201 which is one Embodiment of this invention is demonstrated using FIG. The present invention is not limited to the tractor 201 of the present embodiment, and can be widely applied to a tractor having a cabin and a passenger work vehicle. In the following description, the direction of arrow A in FIG. 1 is the front side of the tractor 201, and the front side of the paper in FIG. 1 is the left side surface of the tractor 201.

  Tractor 201 Front wheels 1 and 1 and rear wheels 2 and 2 are supported on the front and rear sides of the tractor, an engine 5 is disposed inside the front bonnet 6, and a cabin 12 is provided behind the bonnet 6. A steering handle 10 is disposed inside the cabin 12, and a seat 11 is disposed behind the steering handle 10. Further, a group of operation levers such as a main transmission lever, a sub transmission lever, and a PTO operation lever are disposed on the side portion of the seat 11. A clutch housing 7 is disposed at the rear of the engine 5, and a transmission case 9 is disposed at the rear of the clutch housing 7. The driving force from the engine 5 is transmitted to the front wheels 1 and 1 and the rear wheels 2 and 2 for driving. . It should be noted that even if the tractor 201 is a rear-wheel drive system or a system that can switch between transmission and shut-off of the driving force to the front wheels 1 and 1 via a dedicated clutch, a system that always transmits the driving force to the front wheels 1 and 1 There is no limitation.

  Below, the detailed structure of the cabin 12 is demonstrated using FIGS. 1-7. As shown in FIGS. 1 and 2, the cabin 12 covers the periphery of the seat 11 of the tractor 201 and protects workers from wind and rain, direct sunlight, etc., and mainly includes a pair of left and right side frame units 20 and 20 and a lower The frame unit 21, the front upper frame 23, the rear upper frame 24, the front center frame 81, the roof 41, the door glass 50/50, the windshield 13, the front lower glass 52/52 (FIG. 8), the rear glass 51, etc. .

  As shown in FIG. 2, the pair of left and right side frame units 20, 20 is a structure that forms the side surface of the cabin 12. In addition, since the side frame units 20 and 20 of the present embodiment are configured to be substantially symmetrical, one side frame unit 20 will be described in the following description. The side frame unit 20 mainly includes a front pillar 40, a rear pillar 14, a side upper frame 44, a side step frame 42, a fender 33, and the like.

  The front pillar 40 is a member that forms the front portion of the side frame unit 20 and supports the right front end or the left front end of the roof 41 of the cabin 12. As shown in FIG. 4, the front pillar 40 is a pipe-like member having recesses 40 a and 40 b at the front inner corner and the rear outer corner, respectively, in a plan sectional view. Bent into a letter shape. When the windshield 13 is of an openable type, the windshield is disposed above the bent portion via the weather strip 80 (FIG. 5) which is a seal member provided at the outer edge of the windshield 13 in the recess 40a and the recess 40a. When the left and right edge portions of the front glass 13 are in contact with each other and the windshield 13 is hermetically sealed, the left and right edge portions of the windshield 13 are stuck to the recesses 40a and 40a with an adhesive. Further, the outer edge of the front lower glass 52, 52 is pasted to the recess 40a and the recess 40a below the bent portion with an adhesive. Furthermore, the front edge part of the door glass 50 * 50 contact | abuts to the recessed parts 40b * 40b via a weather strip. The rear pillar 14 is a member constituting the rear part of the side frame unit 20 and supports the right rear end or the left rear end of the roof 41 of the cabin 12. Further, a door glass 50 covering the side surface of the cabin 12 is pivotally supported on the rear pillar 14 via a hinge or the like so as to be opened and closed. A weather strip as a seal member is provided on the outer edge of the door glass 50. The side upper frame 44 is a member that forms an upper portion of the side frame unit 20, and a front end thereof is fixed to an upper end portion of the front pillar 40, and a rear end thereof is fixed to an upper end portion of the rear pillar 14. The side step frame 42 is a member forming the lower front half of the side frame unit 20, and the front end thereof is fixed to the lower end portion of the front pillar 40, and the rear end thereof is fixed to the front end portion of the fender 33. The side step frame 42 also functions as a step for an operator to take a foot when getting on and off. The fender 33 is a member constituting the lower second half of the side frame unit 20, and one end thereof is fixed to the rear end portion of the side step frame 42, and the rear end thereof is fixed to the lower end portion of the rear pillar 14. The fender 33 is opposed to the rear wheels 2 and 2 and prevents dirt, mud, and the like splashed by the rear wheels 2 and 2 from entering the cabin 12.

  The lower frame unit 21 is a structure constituting the lower surface of the cabin 12. The lower frame unit 21 mainly includes a pair of left and right down frames 26 and 26, a rear center frame 30, a dust cover 29, a seat fixing member 38, an air cut plate 39, a front mount stay 27, a rear mount stay 28, and the like.

  The down frames 26 and 26 are members that are bent into a substantially “<” shape when viewed from the side, and form a portion from the lower part to the rear part of the lower frame unit 21. The front end portions of the down frames 26 and 26 are respectively fixed to the left and right lower end portions of the air cut plate 39, and the rear end portions are respectively fixed to the left and right end portions of the rear center frame 30. The rear center frame 30 is a member that forms the rear portion of the lower frame unit 21, and is fixed to the rear end portions of the down frames 26 and 26. The dust cover 29 is a member that forms the rear surface of the lower frame unit 21. The dust cover 29 is fixed to the rear portions of the down frames 26 and 26 and the rear center frame 30 to improve the rigidity of the lower frame unit 21. The soil is blocked and dirt or mud is prevented from entering the cabin 12. The seat fixing member 38 is a member disposed above the down frames 26 and 26 and in front of the rear center frame 30, and the seat 11 and the operation lever group are disposed on the upper surface thereof. The air cut plate 39 is a member that forms the front surface of the lower frame unit 21, and the lower end portion thereof is fixed to the front end portions of the down frames 26 and 26. The air cut plate 39 has a function of preventing noise and outside air from entering the cabin 12 from the bonnet 6 and a function of a mounting member provided with the steering handle 10, other instruments, an operation pedal, and the like. The front mount stays 27 and 27 are members fixed to the front end portions of the down frames 26 and 26, respectively, and the front portion of the lower frame unit 21 and the front portion of the side frame unit 20 (side step frames 42 and 42). And the function of fixing the cabin 12 to the main body of the tractor 201 via the vibration isolating member. The rear mount stays 28 and 28 are members fixed to the bent portions of the down frames 26 and 26, respectively, and fix the rear portion of the lower frame unit 21 and the rear portions of the side frame units 20 and 20 (fenders 33 and 33). And the function of fixing the cabin 12 to the tractor 201 body via the vibration isolating member.

  As shown in FIG. 7, the front upper frame 23 is a member obtained by bending a sheet metal into a substantially U shape in a side view, and both ends of the front upper frame 23 are front upper portions of the side frame units 20 and 20 (the front pillar 40 and the side upper frame 44). To the joint). A convex portion 23a bulging forward is formed on the front surface of the front upper frame 23 by pressing. When the windshield 13 is of an openable type as shown in FIG. 5, the convex portion 23a is a part that comes into contact with the upper edge of the windshield 13 via the weather strip 80, and the windshield 13 is hermetically sealed as shown in FIG. In the case of a formula, it is a part which sticks the upper edge part of the windshield 13 with an adhesive agent.

  Thus, by forming the convex part 23a according to the shape of the windshield 13, rainwater etc. are prevented from entering the cabin 12. Note that the left and right end portions of the convex portion 23a are smoothly processed after pressing to improve the followability to the windshield 13 (or the weather strip 80). In addition, the convex portion 23a is not formed of a separate member such as a bent pipe, and is integrated with the front upper frame 23, so that the number of parts can be reduced and different front upper frames can be prepared according to the specifications of the tractor. It is possible to cope with this by simply changing the pressing position of the convex portion 23a, and it is easy to make parts common.

  When the windshield 13 is openable as shown in FIG. 5, a stay 87 for fixing a wiper motor 85 having a waterproof property is provided on the front end of the roof 41 (above the windshield 13). The outer cover 86 is fixed to the upper end of the stay 87 above the roof 41 and the outer cover 86 is disposed above the roof 41. Then, the front end portion of the outer cover 86 is projected forward of the wiper motor 85 so as not to be directly exposed to rainwater or the like, and a windscreen wiper (not shown) is attached to the output shaft 85a of the wiper motor 85. ). Further, when the windshield 13 is hermetically sealed as shown in FIG. 6, a through hole 13a is formed in the lower portion of the windshield 13, covered with a cover, and a waterproof wiper motor 85 is provided inside the cabin 12. The output shaft 85a of the wiper motor 85 is projected outside the cabin 12 through the through hole 13a, and a windscreen wiper (not shown) is provided on the output shaft 85a.

  In this way, the wiper motor 85 is provided with a cover so as to be waterproof. If the windshield 13 is open / closed, the windshield 13 is above the windshield 13, and if the windshield 13 is hermetically sealed, the wiper is disposed on the inside of the windshield 13. By providing the motor 85, it is possible to share the roof 41 when the windshield 13 is an openable type and a closed type. Further, since the wiper motor 85 itself is waterproofed by being covered with a cover, the outer cover 86 does not have to be completely waterproof in the case of the open / close type, and therefore the outer cover 86 can be manufactured at a low cost. is there.

  As shown in FIG. 2, the rear upper frame 24 is a member fixed to the rear upper part of the side frame units 20, 20 (joint portion between the rear pillar 14 and the side upper frame 44), and has an outside air intake port to the cabin 12. Provided.

  As shown in FIGS. 3, 4, 5 and 6, the front center frame 81 is a structure for improving the rigidity of the front surface of the cabin 12, and is provided in the middle of the front pillars 40 and 40 (in this embodiment, This is a member that is laid across and fixed to the front pillars 40 and 40 bent in a side view. The front center frame 81 mainly includes a seal plate 82, an upper and lower partition plate 83, a pipe 84, and the like.

  The seal plate 82 is a member bent in a substantially “<” shape so that the upper and lower ends are located behind the bent portion in a side view, and the longitudinal direction thereof substantially coincides with the left-right direction of the tractor 201. . The lower edge portion of the windshield 13 is in contact with the portion above the bent portion of the seal plate 82 via the weather strip 80 (or the lower edge portion of the windshield 13 is attached with an adhesive). The upper edge portions of the front lower glasses 52 and 52 are attached to the portion below the bent portion with an adhesive. The upper end of the air cut plate 39 is fixed to the lower end of the seal plate 82. With this configuration, the lower frame unit 21 and the front center frame 81 are connected, and the rigidity of the cabin 12 is improved. Further, by making the air cut plate 39 not to protrude above the front center frame 81, it is possible to simplify the shape of the windshield 13 (substantially rectangular in front view) and reduce processing man-hours, When the specifications change such as changing the tilt angle of the windshield 13 in front view (tilt angle of the front surface of the cabin 12) or changing the windshield 13 to either openable or sealed, the shape of the parts No change is required, and workability during assembly is excellent.

  The upper and lower partition plates 83 are elongated rectangular members, and project from the front side of the bent portion of the seal plate 82 by welding. The pipe 84 is a rectangular tube-like member fixed to the rear surface of the seal plate 82 by welding.

  The configuration of the front center frame 81 in this way has the following advantages. That is, the conventional front center frame 181 is bent into a substantially L shape in a side view as shown in FIG. 16 to form an upper surface 181a and a front surface 181b, and the front surface 181b has a substantially "<" shape in a side view. The front glass 113 is attached to a portion above the bent portion with an adhesive and the front lower glass 152 is attached to a portion below the bent portion with an adhesive. A glass molding 111 is interposed between the glass 152 and the glass 152. However, in order to improve the strength of the front center frame 181, the front center frame 181 itself has to be enlarged (thickened), which hinders the operator's field of view, and the contact area at the joint with the left and right front pillars. There is a problem that it is not easy to increase the size and it is difficult to ensure the strength of the joint portion by welding. On the other hand, the front center frame 81 of this embodiment has a seal plate 82, an upper and lower partition plate 83, and a pipe 84 fixed to each other over a long length by welding. It is excellent in rigidity without being thick. Further, the joint portions with the front pillar 40 are the left and right end surfaces of the seal plate 82, the left and right end surfaces of the upper and lower partition plates 83, and the left and right end surfaces of the pipe 84, and the contact area is large and the strength of the joint portion by welding is excellent. Therefore, it is possible to improve the rigidity (strength against torsion) of the cabin 12 without hindering the operator's view. Further, the glass molding 111 interposed between the windshield 113 and the front lower glass 152 in the case of the conventional front center frame 181 can be omitted. As shown in FIGS. 14 and 15, the front center frame 81 may have a shape having a plurality of bent portions in plan view in accordance with the shape of the windshield 13 or may have a gentle arc shape.

  Below, the detailed structure of the mounting base 90 of the fuel container 89 is demonstrated using FIG.8, FIG.9 and FIG.10. In the tractor 201 of this embodiment, the fuel tank of the engine 5 is accommodated in the bonnet 6, and the fuel filler port 88 is provided on the upper surface of the rear part of the bonnet 6. Therefore, when an operator refuels the fuel from the portable fuel container 89 to the refueling port 88, the workability is poor because the position of the refueling port 88 is high, and it is unstable when the fuel container 89 is placed on the hood. There was a problem of becoming. Therefore, in the case of the present embodiment, a locking portion is provided on the upper and lower partition plates 83 of the front center frame 81, and the locking portion formed on the mounting table on which the fuel container is mounted is attached to and detached from the locking portion. It is provided as possible. That is, a pair of locking holes 83a and 83a and a pair of locking holes 83b and 83b formed as through-holes as locked portions are provided at the left and right end portions of the upper and lower partition plates 83 of the front center frame 81, Locking portions 90a and 90a (both ends of the bar) of the mounting table 90 in which the bar is bent into the locking holes 83a and 83a or the locking holes 83b and 83b and formed into a substantially L-shaped hook when viewed from the side. The mounting table 90 on which the fuel container 89 is mounted is detachably disposed in the vicinity of the fuel filler port 88. At this time, the bar is bent and formed so that the height of the upper surface of the fuel container 89 placed on the mounting table 90 and the height of the fuel filler port 88 are substantially the same. Further, a buffer material 91 is provided on the rear surface of the mounting table 90 so that the mounting table 90 does not interfere with the front lower glass 52.

  With this configuration, even when a bellows-like fuel supply nozzle is inserted into the fuel supply port 88 and the fuel container 89 is tilted to supply fuel from the fuel container 89, the fuel container 89 is manually or using a motor-type pump. Even when the fuel is supplied from the tank, the worker can perform the refueling work in an easy posture, and the workability is excellent. Further, since the mounting table 90 is formed by bending a bar, the view of the operator in the cabin 12 is not obstructed even when the mounting table 90 is locked.

  It is to be noted that a rod stay 92 which is a tool mounting body formed by bending a bar material in the locking holes 83a and 83a or the locking holes 83b and 83b is locked, and a farm tool such as a sickle, a scoop or a hoe is attached or It is good also as locking.

  Further, as shown in FIG. 9, the mounting table 93 is detachably locked in locking holes 41 a and 41 a (FIG. 10) penetrating in the vertical direction provided in the front end portion of the roof 41, and is vertically moved on the rear surface of the mounting table 93. Even if the cushioning material 94 is provided at the portion that comes into contact with the partition plate 83, the same effect as that of the mounting table 90 can be obtained. At this time, as shown in FIG. 10, locking holes 41b and 41b penetrating in the front-rear direction are provided at the front end portion of the roof 41, and the mounting table 93 is mounted on the roof 41, and a band 97 (may be a lock stay or the like). While fixing, it is good also as latching part 93a * 93a being latched by this latching hole 41b * 41b, and enabling the mounting base 93 to be conveyed. With this configuration, when the mounting table 93 is not used, the mounting table 93 can be disposed outside the operator's field of view.

  Hereinafter, detailed configurations of the outer cover 86 and the roof 41 will be described with reference to FIGS. 11, 12, and 13. The outer cover 86 is a decorative cover provided further above the roof 41. The outer cover 86 may be made of iron plate or resin. In the present embodiment, the outer cover 86 and the roof 41 are separate bodies, but may be integrated with the roof 41 by welding or integral molding. As shown in FIGS. 12 and 13, in the tractor 201 of this embodiment, a substantially U-shaped concave portion 41c in plan view is formed on the upper surface of the roof 41 so as to extend from the left half of the rear end to the right half of the rear end. Then, the space between the inner roof 96 and the lower surface of the recess 41c is closed with urethane 99, and an air conditioning path 95 serving as a wind flow path for the air conditioner 98 is formed in the center of the space surrounded by the inner roof 96 and the roof 41. is doing. With this configuration, it is possible to omit a duct or the like for forming the air flow path of the air conditioner 98. Further, by providing the recess 41c, it is possible to minimize the amount of urethane 99 used for forming the air conditioning path 95. In addition, it is also possible to use the left and right end portions of the space surrounded by the inner roof 96 and the roof 41 defined by the concave portion 41c and the urethane 99 as a blowing duct for blowing air from the cabin 12 to the outside.

The left view of the tractor which concerns on one Example of this invention. The perspective view which shows the structure of the cabin of the tractor which concerns on one Example of this invention. The perspective view which shows the junction part of a front center frame and a front pillar. The top view of the 1st Example of a front center frame. Side surface sectional drawing which shows a cabin upper front part in case a windshield is a retractable type. Side surface sectional drawing which shows a cabin upper front in case a windshield is a sealing type. The perspective view which shows a front upper frame. The perspective view which shows the 1st Example of the mounting base of a fuel container. The perspective view which shows the 2nd Example of the mounting base of a fuel container. The side view which shows the 2nd Example of the mounting base of a fuel container. Side surface sectional drawing of the cabin upper part. The perspective view of a roof. Front sectional drawing of a roof. The top view of the 2nd Example of a front center frame. The top view of the 3rd Example of a front center frame. Side surface sectional drawing of the conventional front center frame.

12 cabin 40/40 front pillar 81 front center frame 82 seal plate 83 upper and lower partition plate 84 pipe 201 tractor

Claims (4)

In the cabin (12) of the tractor (201), a pair of front pillars (40, 40) are erected on the front left and right sides of the cabin (12), and the middle between the left and right front pillars (40, 40) The front center frame (81) is horizontally mounted on the part, and the front center frame (81) includes a seal plate (82) bent in a side view and an upper and lower partition protruding from the front side of the bent portion of the seal plate. It consists of a plate (83) and a pipe (84) fixed on the rear surface of the seal plate (82), and through holes (83a and 83a) are drilled as the locked portions in the upper and lower partition plates (83). The mounting portions (90a, 90a) of the mounting table (90) for mounting the fuel container (89) are detachably provided in the through holes (83a, 83a), and the locking portions (90a, 90a) Like a hook Form, mounting stage (90) is a tractor cabin, characterized in that arranged on the side of the hood (6). The tractor cabin according to claim 1, wherein the mounting table (90) and the front lower glass (52) are arranged so that the mounting table (90) and the front lower glass (52) of the cabin (12) are not buffered. A tractor cabin, characterized in that a cushioning material (91) is interposed in a contact portion between the tractor and the vehicle. In the cabin (12) of the tractor (201), a pair of front pillars (40, 40) are erected on the front left and right sides of the cabin (12), and the middle between the left and right front pillars (40, 40) The front center frame (81) is horizontally mounted on the part, and the front center frame (81) includes a seal plate (82) bent in a side view and an upper and lower partition protruding from the front side of the bent portion of the seal plate. The plate (83) and the pipe (84) fixed to the rear surface of the seal plate (82) are formed, and the roof (41) constituting the roof of the cabin (12) penetrates as a locked portion. Holes (41a, 41a) are drilled, and the engaging portions (93a, 93a) of the mounting table (93) on which the fuel container (89) is placed are detachably provided in the through holes (41a, 41a). The locking portion (9 a · 93a) is formed in a hook shape, mounting table (93) is a tractor cabin, characterized in that arranged on the side of the hood (6). The tractor cabin according to claim 3, wherein the mounting table (93) and the upper and lower partition plates (83) are disposed at a portion where the mounting table (93) passes through the upper and lower partition plates (83) of the front center frame (81). The tractor cabin is characterized in that a cushioning material (94) is interposed between the abutment portion and the contact portion .