JPH04317859A - Steering support device for tractor - Google Patents

Abstract

PURPOSE:To widen the space of an engine room and stabilize a steering frame and a steering handle supported thereby by forming an engine fuel tank for tractor and a steering bracket for supporting the steering handle as part of the steering frame. CONSTITUTION:A front wall frame 2 on an engine room 1 rear side is connected to a rear wall frame 4 on a steering floor 3 front side in the upper part through a fuel tank 5 and a steering bracket 7 and in the lower part through a housing cover 9 on a clutch housing to enhance the rigidity.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering support device for a tractor or the like.

0002

BACKGROUND OF THE INVENTION In a tractor in which a fuel tank is provided in the engine room, there are many structural limitations such as the engine room being longer from front to back and the operating floor being narrower. This invention prevents the longitudinal length from becoming long by locating a part of the fuel tank on the steering post side and making it part of the steering support structure together with the steering bracket.
It attempts to provide stable support for the fuel tank itself and the steering wheel.

0003

[Means for Solving the Problems] The present invention provides a structure in which a front wall frame 2 that partitions a space between a front engine room 1 and a rear wall frame 4 between a rear control floor 3 and a rear wall frame 4 whose upper part is a fuel tank. tank 5
The fuel tank 5 is fixed to the fuel tank 5 and connected via a steering bracket 7 that supports a steering handle 6, and the lower part is connected by a housing cover 9 that covers a clutch housing 8, thereby forming a steering support device for a tractor or the like.

0004

[Operation and effects of the invention] The steering handle 6 is
The fuel tank 5 and the rear wall frame 4 are connected and supported by the steering bracket 7, and the fuel tank 5 and the steering bracket 7 are connected by the front wall frame 2 and the rear wall frame 4, which are connected at the lower part by the housing cover 9. Since the fuel tank 5 is connected, its rigidity is increased.
The housing cover 9 itself becomes the main body of the steering support structure, and the fuel tank 5, steering bracket 7,
Moreover, the installation space for the housing cover 9 and the like can be made more efficient and the size can be reduced, and the steering handle 6 can be stably supported.

[0005]

[Embodiment] A tractor body in a four-wheel drive mode extends from the engine 10 at the front to the rear transmission case 11 at the rear.
A clutch housing 8, a transmission shaft housing 13, a transmission case 14, etc. are provided and integrally connected, an axle housing 15 is provided on both left and right sides of the rear transmission case 11, a rear wheel 17 is provided on the rear wheel shaft 16, and the vehicle body A front wheel bracket 18 made of a thick plate provided at the front of the vehicle is provided with an axle housing 20 that swings around a center pivot 19, and a front wheel 22 is mounted on a front wheel shaft 21 so as to be freely steerable.

[0006] A bonnet 23 that covers an engine room 1 that houses the engine 10 and the like is provided on the upper part of the vehicle body so as to be openable and closable, and a steering handle 6, an operation panel 24, etc. are provided on the rear side of the engine room 1. Control frame 25
A pilot seat 27, a rear wheel fender 28, etc. are provided behind the control frame 25 via the control floor 3. Reference numeral 29 denotes a lift arm that lifts and lowers a working machine connected to the rear of the vehicle body by a three-point link or the like.

The control frame 25 is installed on the floor frame 30 at the upper part of the vehicle body, and includes a front wall frame 2 and a rear wall frame 4 made of sheet metal.
, a fuel tank 5, a steering bracket 7, a housing cover 9, and the like. The front wall frame 2 has a lower part formed in a gate shape so as to straddle both sides of the housing 8 from side to side, and has an opening formed in the upper part so as to surround the fuel tank 5. Fit and install the fuel tank 5. The gap in the opening into which the fuel tank 5 is fitted is filled with a sealing material or the like to keep it airtight so that hot air does not flow from the engine room 1 side to the rear.

The rear wall frame 4 has a clutch housing 8 at its lower part.
The steering post 31 is formed to straddle the rear portion of the steering post 31 from side to side, and the upper portion has a connecting portion protruding from both left and right sides of the steering post 31 . Between the front wall frame 2 and the rear wall frame 4, the front and rear ends of a housing cover 9 formed to have a gate-shaped cross section in front view so as to cover the clutch housing 8 are welded or tightened with bolts and nuts. They are connected using a tool 32. Moreover, the fuel tank 5
The front side part looks into the engine room 1, and the rear side part has a recessed part 33 formed along the steering post 31, and the lower part of the steering post 31 is fitted into this recessed part 33. and steering bracket 7
The steering bracket 7 is attached to the fuel tank 5 by the following means, and both sides of the lower end of the steering bracket 7 are connected to the upper end of the rear wall frame 4 using fasteners 34 such as bolts and nuts. Reference numeral 35 denotes a mounting seat provided at the lower end of the housing cover 9, which is mounted to the floor frame 30. Reference numeral 36 denotes a steering shaft bearing on a steering post, which is interlocked to steer the front wheels 22 through orbit roll, power steering, or the like. Reference numeral 37 denotes a fuel filler port, which is located in the engine room 1 and supplies fuel for the engine 10 to the fuel tank 5. Numeral 38 is a fastener made of bolts, nuts, etc., which connects and fixes a joining edge 39 formed on the outer periphery of the fuel tank 5 to the opening edge of the front wall frame 2. Reference numeral 42 denotes a fixture that clamps and fixes the steering post 31 to the steering bracket 7.

[0009] Such a control frame 25 has an outer circumferential cover 40 formed to cover the outer circumferential portion of the front wall frame 2, and has an operation panel 24 on its upper end surface with instruments arranged thereon. Further, a column cover 41 that covers the rear side of the steering bracket 7 above the rear wall frame 4 is attached to the rear side of the outer peripheral cover 40 to form an exterior structure. The rear edge of the openable and closable bonnet 23 is overlapped with the front edge of the outer cover 40.

The front wheel bracket 18 of the front wheel 17 includes:
The left and right sides of the engine 10 extend forward, and have a bumper 43 at the front end that projects forward of the bonnet 23, and this middle portion forms a curved portion 45 that curves outward at the radiator 44. There is. On the outside of this front wheel bracket 18, a bracket cover 46 and an intermediate cover 6 are provided.
0 is provided, the upper edge is formed horizontally so as to be close to the lower edge of the bonnet 23 and cover the upper edge of the front wheel bracket 18, and the lower edge is close to the lower edge of the front wheel bracket 18, A cover room 47 is formed between the front wheel bracket 18 and the bracket cover 46, and the engine 1
All or part of the equipment incidental to 0 may be located. The bracket cover 46 and the intermediate cover 60 may be directly attached to the front wheel bracket 18 with a stay or the like interposed therebetween.
It may also be installed indirectly on equipment etc. mounted on 8 etc.

Reference numeral 48 denotes a radiator fan, 49 a battery provided in front of the radiator 44, and 50 a power steering provided below the battery 49 between the left and right front wheel brackets 18. 51 is a muffler, 52 is a generator, 53 is an air compressor for the air conditioner, 5
4 is an air cleaner, 55 is an oil tank, 56 is an alarm, 57 is a headlight, 58 is a receiver dryer, 59
is a capacitor.

The oil tank 55 and receiver dryer 5
8 etc., the lower part may be located in the cover room 47 between the front wheel bracket 18 and the bracket cover 46. In this case, the oil tank 55 and the receiver dryer 58
It is preferable to form holes through which the oil tank 55 and the like are located at the upper edge of the bracket cover 46 where the oil tank 55 and the like are located. Even if mud is scattered while the tractor is running, the front wheel bracket 18
Since a bracket cover 46 is provided on the outside of the engine compartment 1, it does not enter the upper engine room 1 through the cover room 47, and grass etc. do not enter the engine room 1 on the upper side.

Note that the intermediate cover 60 is attached to the bonnet 2.
3 (Fig. 7), and the bracket cover 4
The bonnet 23 may be opened and closed at the upper edge of the hood 6.

[Brief explanation of drawings]

The figure shows an embodiment of the invention.

FIG. 1 is a partial side view.

[Fig. 2] Its rear view.

FIG. 3 is a partial side view.

FIG. 4 is a plan view thereof.

FIG. 5 is a front sectional view thereof.

FIG. 6 is an overall side view.

FIG. 7 is a front sectional view of a partial embodiment.

[Explanation of symbols]

1 Engine room 2 Front wall frame 3. Control floor 4 Rear wall frame 5 Fuel tank 6 Steering handle 7 Steering bracket 8 Clutch housing 9 Housing cover

Claims (1)

[Claims] Claim 1: Between the front wall frame 2 that partitions the front engine room 1 and the rear wall frame 4 between the rear control floor 3, the upper part is connected to the fuel tank 5 and the fuel tank 5. A steering support device for a tractor or the like, which is connected via a steering bracket 7 that fixedly supports a steering handle 6, and connected by a housing cover 9 that covers a clutch housing 8 at the lower part.