JP2017190010A - Tractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance machine body strength by installing a reinforcement member both in a specification in which a fuel tank is arranged at the back of a driver seat and a specification in which it is not arranged.SOLUTION: A tractor includes a reinforcement member 12 for connecting left and right fender frames 10 at the back of a driver seat 8. Each of the left and right fender frames 10 includes a front side fixing place 13e and a rear side fixing place 13f where the reinforcement member 12 is selectively fixed. In a first specification in which a second fuel tank 14 is arranged at the back of the driver seat 8, the reinforcement member 12 is fixed to the rear side fixing place 13f and an arrangement space for the second fuel tank 14 is secured between the driver seat 8 and the reinforcement member 12, and the second fuel tank 14 is protected by the reinforcement member 12. In a second specification in which the second fuel tank 14 is not arranged at the back of the driver seat 8, the reinforcement member 12 is fixed to the front side fixing place 13e, and a rear protrusion amount of the reinforcement member 12 is suppressed.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a tractor including a reinforcing member that connects left and right fender frames.

  A tractor comprising a driver's seat, left and right fenders provided on the left and right sides of the driver's seat, left and right fender frames that support the left and right fenders, and a reinforcing member that connects the left and right fender frames behind the driver's seat Are known. For example, Patent Documents 1 and 2 describe a tractor in which a license plate and a rear lamp are attached to a reinforcing member that connects left and right fender frames.

Japanese Patent No. 5785104 Japanese Utility Model Publication No. 62-203788

  In this type of tractor, although it is the same model, a plurality of specifications may be set according to the difference in usage. For example, a specification (for example, paddy field specification) in which a fuel tank (sub fuel tank) is disposed behind the driver's seat in order to increase the fuel tank capacity, and a specification in which the fuel tank is not disposed behind the driver's seat (for example, However, in the specifications where the fuel tank is placed behind the driver's seat, it is difficult to install the reinforcing member described above due to layout restrictions, and the strength of the fuselage between the specifications is reduced. There was a risk of differences.

The present invention has been created in view of the above-described circumstances in order to solve these problems. The invention of claim 1 is directed to a driver's seat and left and right sides of the driver's seat. And a left and right fender frame that supports the left and right fenders, and includes a reinforcing member that connects the left and right fender frames behind the driver's seat, and the left and right fender frames are: In the tractor having a specification in which a fuel tank is disposed behind the driver's seat, the reinforcing member is fixed to the rear fixing portion, including a front fixing portion and a rear fixing portion to which the reinforcing member is selectively fixed. The fuel tank is secured between the driver seat and the reinforcing member, the fuel tank is protected by the reinforcing member, and the fuel tank is disposed behind the driver seat. In the tractor specification is not disposed tank, which comprises suppressing the rearward projection amount of the reinforcing member is fixed to the reinforcing member to the front fixing points.
The invention according to claim 2 is the tractor according to claim 1, wherein the reinforcing member extends along the front-rear direction, the left and right fixing parts fixed to the fender frame, and the left-right direction. And a connecting portion that connects the rear ends of the fixing portion, and the fixing portion is fixed to the front fixing portion of the fender frame when the fixing portion is fixed to the rear fixing portion. It is characterized by covering up.
Further, the invention of claim 3 is the tractor according to claim 1 or 2, wherein in the tractor of the specification in which the fuel tank is arranged behind the driver's seat, the front side fixing portion of the fender frame includes A fuel tank bracket for supporting the fuel tank is fixed.
A fourth aspect of the present invention is the tractor according to any one of the first to third aspects, wherein a safety frame mounting base for mounting the safety frame is fixed to upper portions of the left and right fender frames. The front side fixing point and the rear side fixing point are provided on the safety frame mounting base.
A fifth aspect of the present invention is the tractor according to any one of the first to fourth aspects, wherein the reinforcing member is a license plate, a low-speed vehicle mark, an external power supply, and / or a rear lamp. It comprises a part.
The invention according to claim 6 is the tractor according to claim 5, wherein the reinforcing member is detachably fixed to the left and right fender frames, and the connecting portion includes the external take-out power source, And / or a harness electrically connected to the rear lamp is routed, and the harness is integrally attached to and detached from the reinforcing member when the reinforcing member is attached and detached.

According to the first aspect of the present invention, the strength of the airframe can be increased by installing the reinforcing member in both the specification in which the fuel tank is disposed behind the driver's seat and the specification in which the fuel tank is not disposed. In the specification in which the fuel tank is arranged behind the driver's seat, the reinforcing member is also used as the protective member for the fuel tank, so that the structure can be simplified and the cost can be reduced. In addition, in the specification in which the fuel tank is not disposed behind the driver's seat, there is an advantage that the lifting range of the work implement can be widened because the amount of rearward protrusion of the reinforcing member is suppressed.
According to the invention of claim 2, since the fixing portion of the reinforcing member covers the rear fixing portion when it is fixed to the front fixing portion of the fender frame, the appearance is deteriorated due to the exposure of the rear fixing portion. Can be avoided.
According to the invention of claim 3, in the specification in which the fuel tank is arranged behind the driver's seat, the fuel tank bracket that supports the fuel tank is fixed to the front fixed position of the fender frame. Not only can the structure be simplified on the basis of the improvement, but also the deterioration of the appearance due to the exposure of the front-side fixed portion can be avoided.
According to the fourth aspect of the present invention, since the front side fixing portion and the rear side fixing portion are provided on the safety frame mounting base, the safety frame mounting base can also be reinforced by fixing to the reinforcing member.
According to the invention of claim 5, since the reinforcing member includes a license plate, a low speed vehicle mark, an external power supply, and / or a rear lamp mounting portion, the reinforcing member is also used as a mounting portion for various members. The structure can be simplified.
According to the invention of claim 6, since the harness is attached / detached integrally with the reinforcing member when the reinforcing member is attached / detached, it is possible to improve assemblability and maintainability.

1 is an overall side view of a tractor (first specification) according to an embodiment of the present invention. It is the perspective view which looked at the rear part of the tractor (1st specification) concerning one embodiment of the present invention from the back upper part. It is a perspective view which shows the reinforcement member of the tractor which concerns on one Embodiment of this invention. It is a figure which shows the reinforcement member of the tractor which concerns on one Embodiment of this invention, (a) is a top view of a reinforcement member, (b) is a front view of a reinforcement member, (c) is a side view of a reinforcement member. It is the perspective view seen from the front upper part which shows the state which attached the reinforcement member to the tractor (1st specification) which concerns on one Embodiment of this invention. It is the perspective view which looked at the state which attached the low speed vehicle mark, the external taking-out power supply, and the rear lamp to the reinforcement member of the tractor (1st specification) which concerns on one Embodiment of this invention from the front upper direction. It is the perspective view which looked at the state which attached the 2nd fuel tank to the tractor (1st specification) concerning one embodiment of the present invention from the front upper part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a tractor. The tractor 1 includes an engine mounting portion 2 on which an engine and a fuel tank (not shown) are mounted, a transmission case 3 for shifting engine power, and power transmitted from the transmission case 3. The front wheel 4 and the rear wheel 5 that are rotationally driven, a work machine connection unit 6 to which a work machine (not shown) is connected, and a driving unit 7 on which an operator gets on.

As shown in FIGS. 1 and 2, the driving unit 7 includes a driver seat 8 on which an operator is seated. Left and right fenders 9 are disposed on the left and right sides of the driver's seat 8 so as to cover the upper side of the rear wheel 5. The left and right fenders 9 are left and right fender frames 10 that are erected inward of the rear wheel 5. It is supported. As shown in FIGS. 5 to 7, the left and right fender frames 10 are connected by a connecting frame 11 whose height direction intermediate portions are directed in the left-right direction, and the reinforcing members whose height direction upper end portions are directed in the left-right direction. 12 are connected.
Strictly speaking, a safety frame mounting base 13 for mounting a safety frame (not shown) is provided at the upper end portions of the left and right fender frames 10, and the safety frame mounting bases 13 provided on the left and right fender frames 10 are the reinforcing members 12. It is connected through.

  At least two specifications are set for the tractor 1 of the present embodiment. One specification is a first specification (for example, paddy field specification) in which a second fuel tank 14 is disposed behind the driver's seat 8 in order to increase the fuel tank capacity, and the other specification is behind the driver's seat 8. The second specification (for example, field cropping specification) in which the second fuel tank 14 is not disposed. In the second specification in which the second fuel tank 14 is disposed behind the driver's seat 8, the attachment position may interfere with the second fuel tank 14 and it may be difficult to install the reinforcing member 12, but this embodiment The reinforcing member 12 can correspond to the first specification and the second specification. Hereinafter, a specific shape of the reinforcing member 12 and a fixing structure thereof will be described.

  As shown in FIG. 3 and FIG. 4, the reinforcing member 12 of the present embodiment extends along the front-rear direction, the left and right fixing portions 12 a fixed to the safety frame mounting base 13 (fender frame 10), and the left-right direction. It has a U-shape in plan view that is integrally provided with a connecting portion 12b that connects rear end portions of the left and right fixing portions 12a. The fixing portion 12a has two bolt insertion holes (not shown) arranged in the front-rear direction on the front end side thereof, and the two bolts 15 inserted from above into the bolt insertion holes are attached to the safety frame mounting base 13. Removably fixed.

  The safety frame mounting base 13 of the present embodiment includes a fender frame fixing portion 13a fixed to the upper end portion of the fender frame 10 via four bolts 16, a column portion 13b rising from the fender frame fixing portion 13a, and the column The safety frame fixing portion 13c provided at the upper end of the portion 13b and the reinforcing member fixing portion 13d provided at the upper part inside the fender frame fixing portion 13a are integrally provided.

  The reinforcing member fixing portion 13d has a square shape in a side view, and a front fixing portion 13e and a rear fixing portion 13f to which the reinforcing member 12 is selectively fixed are formed on the upper surface portion. Each of the fixing points 13e and 13f includes two bolt insertion holes corresponding to the two bolt insertion holes of the reinforcing member 12, and the bolt insertion holes of the reinforcing member 12 and the bolt insertion holes of the selected fixing points 13e and 13f. By tightening the inserted bolt 15 and a nut (not shown) that is screwed into the bolt 15, the reinforcing member 12 is fixed to the front fixing portion 13e or the rear fixing portion 13f.

  As shown in FIGS. 5 to 7, in the first specification in which the second fuel tank 14 is disposed behind the driver's seat 8, the reinforcing member 12 is fixed to the rear fixing portion 13 f of the safety frame mounting base 13. Thereby, the arrangement space of the second fuel tank 14 is ensured between the driver's seat 8 and the reinforcing member 12, and the reinforcing member 12 can also be used as a protective member for protecting the second fuel tank 14 from a rear collision. It becomes possible.

  As shown in FIG. 7, the second fuel tank 14 is attached to the fender frame 10 via the left and right fuel tank brackets 17. The fuel tank bracket 17 includes a fuel tank connecting portion 17 a connected to the second fuel tank 14, an upper fixing portion 17 b fixed to the safety frame mounting base 13 via two bolts 18, and two to the connecting frame 11. And a lower fixing portion 17c fixed through a bolt 19. In the present embodiment, when the upper fixing portion 17b of the fuel tank bracket 17 is fixed to the safety frame mounting base 13, the upper fixing portion of the fuel tank bracket 17 is fixed to the front fixing portion 13e in order to fix the reinforcing member 12 in the second specification. 17b is fixed.

  On the other hand, in the second specification in which the second fuel tank 14 is not disposed behind the driver's seat 8, the reinforcing member 12 is fixed to the front side fixing portion 13 e of the safety frame mounting base 13. Thereby, not only the backward protrusion amount of the reinforcing member 12 is suppressed, but also the safety frame mounting base 13 can be reinforced by fixing to the reinforcing member 12. Further, as is clear from FIG. 6, the fixing portion 12 a of the reinforcing member 12 can cover the rear fixing portion 13 f when being fixed to the front fixing portion 13 e of the safety frame mounting base 13.

  As shown in FIG.3 and FIG.4, the reinforcement member 12 of this embodiment is provided with the four attachment parts 12c-12f. As shown in FIG. 6, a license plate (not shown) is attached to the first attachment portion 12c located on the leftmost side, and a low speed vehicle mark 20 is attached to the second attachment portion 12d adjacent to the right side thereof. The external extraction power source 21 is attached to the third attachment portion 12e adjacent to the right side, and the rear lamp 22 is attached to the fourth attachment portion 12f located on the rightmost side.

  As shown in FIGS. 5 and 6, a harness 23 that is electrically connected to the external power supply 21 and the rear lamp 22 is routed on the reinforcing member 12. Specifically, the harness 23 is routed along the connecting portion 12b of the reinforcing member 12, and the harness 23 is held by a plurality of holding members 24 provided on the connecting portion 12b and the fixing portion 12a.

  As shown in FIG. 5, the harness 23 of the present embodiment is connected to the main harness 25 via connectors 23 a and 25 a in the vicinity of the fender frame 10. In other words, the harness 23 of this embodiment can be separated from the main harness 25 in the vicinity of the fender frame 10, and the harness 23 can be attached to and detached from the reinforcing member 12 when the reinforcing member 12 is attached and detached.

  According to the present embodiment configured as described, the driver seat 8, the left and right fenders 9 provided on the left and right sides of the driver seat 8, and the left and right fender frames 10 that support the left and right fenders 9 are provided. The tractor 1 includes a reinforcing member 12 that connects the left and right fender frames 10 behind the driver's seat 8, and the left and right fender frames 10 include a front fixing portion 13e and a rear side where the reinforcing members 12 are selectively fixed. In the first specification, which includes a fixing portion 13f and the second fuel tank 14 is arranged behind the driver's seat 8, the reinforcing member 12 is fixed to the rear-side fixing portion 13f, and the space between the driver's seat 8 and the reinforcing member 12 is fixed. In the second specification in which the second fuel tank 14 is secured by the reinforcing member 12 and the second fuel tank 14 is not disposed behind the driver's seat 8, the reinforcing member 1 is provided. Since the suppressing rearward projection amount of the front fixing portion 13e fixed to the reinforcing member 12 to be enhanced body strength also placed a reinforcing member 12 in either of the first specification and the second specification.

  Further, in the first specification in which the second fuel tank 14 is disposed behind the driver's seat 8, the reinforcing member 12 is also used as a protective member for protecting the second fuel tank 14 from a rear collision. Cost reduction is possible.

  Further, in the second specification in which the second fuel tank 14 is not disposed behind the driver's seat 8, since the rearward protrusion amount of the reinforcing member 12 is suppressed, there is an advantage that the lifting range of the work implement can be expanded.

  The reinforcing member 12 includes a left and right fixing portion 12a fixed to the fender frame 10 along the front-rear direction, and a connecting portion 12b that connects the rear ends of the left and right fixing portions 12a along the left-right direction. The fixing portion 12a covers the rear fixing portion 13f when the fixing portion 12a is fixed to the front fixing portion 13e of the fender frame 10, so that the appearance is deteriorated due to the exposure of the rear fixing portion 13f. Etc. can be avoided.

  Further, in the first specification in which the second fuel tank 14 is arranged behind the driver's seat 8, the fuel tank bracket 17 that supports the second fuel tank 14 is fixed to the front fixing portion 13e of the fender frame 10, so that it is fixed. Not only can the structure be simplified on the basis of the common use of the places, but also deterioration of the appearance due to the exposure of the front side fixing places 13e can be avoided.

  Further, a safety frame mounting base 13 for mounting the safety frame is fixed to the upper part of the left and right fender frames 10, and the front side fixing portion 13e and the rear side fixing portion 13f are provided on the safety frame mounting base 13, so that reinforcement is provided. The safety frame mounting base 13 can also be reinforced by fixing to the member 12.

  Further, since the reinforcing member 12 includes the number plate, the low-speed vehicle mark 20, the external take-out power source 21, and the mounting portions 12c to 12f of the rear lamp 22, the reinforcing member 12 can be used as mounting portions for various members, thereby simplifying the structure. I can plan.

  The reinforcing member 12 is detachably fixed to the left and right fender frames 10, and a harness 23 that is electrically connected to the external extraction power source 21 and the rear lamp 22 is routed to the connecting portion 12b. Since the harness 23 is attached and detached integrally with the reinforcing member 12 when attaching and detaching 12, the assembling property and the maintenance property can be improved.

DESCRIPTION OF SYMBOLS 1 Tractor 8 Driver's seat 9 Fender 10 Fender frame 12 Reinforcement member 12a Fixing part 12b Connecting part 12c-12f Mounting part 13 Safety frame mounting base 13e Front fixing part 13f Rear fixing part 14 Second fuel tank 17 Fuel tank bracket 20 Low speed vehicle Mark 21 External power supply 22 Rear lamp 23 Harness

Claims (6)

The driver ’s seat,
Left and right fenders provided on the left and right sides of the driver seat;
A left and right fender frame that supports the left and right fenders,
A reinforcing member that connects the left and right fender frames behind the driver seat;
The left and right fender frames include a front side fixing portion and a rear side fixing portion to which the reinforcing member is selectively fixed,
In the tractor having a specification in which a fuel tank is disposed behind the driver's seat, the reinforcing member is fixed to the rear fixing portion, and an arrangement space for the fuel tank is provided between the driver's seat and the reinforcing member. And securing the fuel tank with the reinforcing member,
In the tractor having a specification in which the fuel tank is not disposed behind the driver's seat, the reinforcing member is fixed to the front fixing portion to suppress the rearward protruding amount of the reinforcing member. The reinforcing member includes a left and right fixing portion that is fixed to the fender frame along the front-rear direction, and a connecting portion that connects the rear end portions of the left and right fixing portions along the left-right direction. Has a shape,
2. The tractor according to claim 1, wherein when the fixing portion is fixed to the front fixing portion of the fender frame, the fixing portion covers the rear fixing portion.   2. The tractor having a specification in which the fuel tank is disposed behind the driver's seat, wherein a fuel tank bracket that supports the fuel tank is fixed to the front fixing portion of the fender frame. 2. The tractor according to 2. On the upper part of the left and right fender frames, a safety frame mounting base for mounting the safety frame is fixed,
The tractor according to any one of claims 1 to 3, wherein the front side fixing portion and the rear side fixing portion are provided on the safety frame mounting base.   The tractor according to any one of claims 1 to 4, wherein the reinforcing member includes a license plate, a low-speed vehicle mark, an external power supply, and / or a rear lamp mounting portion. The reinforcing member is detachably fixed to the left and right fender frames,
In the connecting portion, a harness that is electrically connected to the external extraction power source and / or the rear lamp is routed,
The tractor according to claim 5, wherein the harness is attached / detached integrally with the reinforcing member when the reinforcing member is attached / detached.

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