JPH085108Y2 - Structure of the front of the tractor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to the structure of the front part of a tractor in a tractor used for, for example, agricultural work, civil engineering work, and the like.

(Prior Art) In an agricultural tractor or the like, a front axle frame is projected forward from an engine, a radiator and a battery are mounted on the front axle frame, and the engine, the radiator and the battery are covered with a bonnet.
It is supported by a pair of support frames.

(Problems to be solved by the invention) The upper and side parts of the bonnet are composed of a top plate and left and right side plates, and the left and right side plates are detachable for maintenance. However, when the tractor becomes large, the top plate and the front axle are attached. A plate having a size that covers the space between the frame and the frame becomes heavy and difficult to attach and detach.

The front grille on the front of the bonnet is detachable from the bonnet top plate and side plates to allow maintenance from the front of the tractor, but this front grill also becomes heavy when the tractor becomes large, It becomes difficult to put on and take off. Further, it is required to increase the strength of the support frame that supports the bonnet.

(Means for Solving the Problems) In the present invention, a side plate and a front grille are divided into upper and lower parts, a lower side of each of which is a skirt body and a skirt front member, and the skirt body is a front and rear support frame to which a bonnet top plate is attached. By attaching the skirt front member to the front axle frame and supporting the lower portion of the front grille to the front support frame, the problems of the prior art can be solved.

That is, the concrete configuration for solving the problem in the present invention is to connect the clutch housing 4, the flywheel housing 3, the engine 2 and the front axle frame 5 in the front-rear direction to form the vehicle body 6, and to mount the vehicle body 6 on the front axle frame 5. The radiator 7 and the battery 8 are arranged, and the engine 2 and the radiator 7 are arranged.
And the battery 8 is covered with a bonnet 10,
In the structure of the front part of the tractor in which 10 is supported by front and rear support frames 23 and 24 which are erected on the vehicle body 6, and the bonnet top plate 12 is attached to the front and rear support frames 23 and 24, the side of the bonnet 10 is attached to the front and rear support frames. Lower skirt front member formed by a lower skirt body 14 fixed to 23 and 24 and a bonnet top plate 12 and a side plate 13 which can be attached to and detached from the skirt body 14 above the skirt body 14 and whose front bonnet is fixed to the front axle frame 5. 16 and the bonnet top plate 12 and the front grille 15 which can be attached to and detached from the front support frame 23 above it.

(Function) A skirt body in which front and rear support frames 23, 24 are erected on the vehicle body 6 and arranged above and outside the front axle frame 5 in parallel therewith.
14 is fixed to the front and rear support frames 23, 24, and the front and rear support frames 23, 24
The top plate 12 of the bonnet 10 is fixed to 24, and these firmly reinforce each other. Side plate that opens and closes the side of the bonnet 10
13 is provided between the top plate 12 and the skirt body 14, and is shorter than the length from the top plate 12 to the front axle frame 5 by about 14 minutes, and the weight thereof is reduced. A skirt front member 16 is arranged between the front ends of the left and right skirt bodies 14, the skirt front member 16 is fixed to the front axle frame 5, and the front grill 15 that opens and closes the front portion of the bonnet 10 is the skirt front member 16.
The weight is reduced by that amount, and the attachment / detachment work is light, and the lower portion thereof is supported by the front support frame 23.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 3, reference numeral 1 denotes a front half of a tractor, which is a vehicle body 6 in which a flywheel housing 3 and a clutch housing 4 are connected to the rear of the engine 2 and a front axle frame 5 is connected to the engine 2 so as to project forward. Are formed.

A radiator 7 and a battery 8 are provided on the front axle frame 5.
And the like, and a fuel tank 9 is arranged above and behind the engine 2, and these are covered with a hood 10 and a control box 11.

The bonnet 10 includes a top plate 12 and left and right side plates 13 on the left and right sides thereof.
And a skirt body (14) below it, a front grille (15) and a skirt front member (16).

The control box 11 has a box base 17 fixed to the vehicle body 6 and a panel cover 18 attached to the box base 17.
A brake pedal 19, a clutch pedal 20, a handle post, and the like are supported on the panel, and various meters are attached to a panel cover 18.

The bonnet 10 is supported by a pair of front and rear support frames 23, 24 which are erected on the vehicle body 6. The front support frame 23 connects the left and right columns 25A and 25B made of pipes with the upper and lower horizontal members 26 and 27. The lower horizontal member 27 is bolted to the mounting portion 28 of the front axle frame 5, and the upper horizontal member 26. Is an L-shaped section metal fitting and is a top plate 12
The front part of is fixed.

The front support frame 23 fixes the upper part of the radiator 7 via an upper stay 29, and also mounts an air cleaner 31 via a mounting body 30.

Further, a pair of left and right brackets 32 are welded to the lower portion of the front support frame 23, and the skirt body mounting portion 32 is attached to the bracket 32.
An a and a front grille supporting portion 32b are formed.

The rear support frame 24 connects the left and right columns 34A, 34B made of U-shaped cross-section material with the upper member 35 and the midway horizontal member 36, and the upper member 35 fixes the rear portion of the top plate 12, and the midway horizontal direction. The frame 36 is the car body 6,
For example, it is mounted and fixed on the flywheel housing 3.

The rear support frame 24 includes left and right columns 34, an upper member 35, and a midway cross member 36.
And surrounds the fuel tank 9, and at least the upper and lower parts of the flange portion 9a of the fuel tank 9 are the upper member 35 and the intermediate cross member 36.
It is attached to the vehicle body 6 by being fixed to and.

A skirt body mounting portion 37 is formed under the left and right columns 34 of the rear support frame 24, and the skirt body 14 is mounted on the skirt body mounting portion 37.
The front and rear ends are bolted to the mounting portion 32a of the front support frame 23 and below the side plate 13, the front axle frame 5 in a side view.
It is arranged in parallel with.

The left and right side plate 13 is locked so that the upper end is engaged with the side edge portion of the top plate 12 from above, and a hook-shaped stopper 38 is provided on the lower portion, and this stopper 38 is provided on the skirt body 14. A pin
It is stopped by engaging with 39, and the side plate 13 is disengageable with respect to the top plate 12 and the skirt body 14 by engaging and disengaging the stopper 38, so that the side portion of the bonnet 10 can be opened and closed.

An opening 41 for projecting the tip of the muffler pipe 40 outward is formed in one of the left and right side plates 13 (right side plate in the embodiment),
A mouthpiece 42 is provided in the opening 41 to prevent the side plate 13 from becoming black due to smoke exhaust.

The skirt front member 16 arranged in a forwardly protruding shape between the front ends of the left and right skirt bodies 14 is a stay 43 of the front axle frame 5.
And covers substantially the lower half of the battery 8.

Above the skirt front member 16, a top plate 12 and left and right side plates 13 are provided.
The front grill 15 placed in front of the
A hook 45 is hooked by a hook 44 provided at the front part of the bracket, and a pin 45 hangs down from the lower part thereof and is engaged with a hole formed in the front grille supporting portion 32b of the bracket 32.

Reference numeral 45 denotes a fan shaft of a radiator fan 46, which is connected to a water pump shaft via a coupling 47. The bearing body 48 supporting the fan shaft 45 is a lower mounting plate 49.
Are bolted to the front axle frame 5. The mounting plate 49 has one end protruding laterally to mount the skirt body 14, and the other end may also be formed with a mounting portion for the skirt body 14.

On the front surface of the radiator 7, a insect screen 50 is provided,
This insect screen 50 is supported by rails at the top and bottom, and the side plate 13
When removed, it can be inserted and removed outward, and one skirt body
A notch 51 for inserting and removing the insect net 50 is formed in the portion 14.

Forming the notch 51 in the skirt body 14 lowers the strength, but this is compensated for by the attachment plate 49 being connected.

The bonnet 10 includes a top plate 12, side plates 13, and a skirt body.
14, the front grille 15, the skirt front member 16 and the like can be painted in different colors or in different colors.

(Effect of the Invention) According to the present invention described in detail above, the lower skirt body 14 in which the side portions of the bonnet 10 are fixed to the front and rear support frames 23, 24 can be attached to and detached from the bonnet top plate 12 and the skirt body 14 above it. Front side frame 13 and front bonnet frame 5
Since it is formed by the lower skirt front member 16 fixed to and the bonnet top plate 12 and the front grill 15 which is detachable from the front support frame 23 above it, the front and rear support frames 23 and 24, the bonnet top plate 12, and the left and right support frames 23 are formed. The skirt body 14 has a square frame structure, which makes it possible to form a robust frame structure in which the upper side portions are open, the supporting strength of the side plate 13 and the front grille 15 can be improved, and the side plate 13 is small and lightweight and can be attached and detached even if the vehicle becomes large. The side plate 13 is the bottom side of the bonnet top plate 12 that can be easily and most needed for maintenance.
And it can be opened with the front grill 15.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is a side view,
2 is a partially sectional plan view, and FIG. 3 is a sectional front view. 1 ... tractor, 2 ... engine, 3 ... flywheel housing, 4 ... clutch housing, 5 ... front axle frame, 6 ... vehicle body, 7 ... radiator, 8 ... battery, 9 ... fuel tank , 10 …… Bonnet, 12 ……
Top plate, 13 ... side plate, 14 ... skirt body, 15 ... front grill, 16 ... skirt front member, 23 ... front support frame, 24 ... rear support frame

Claims (1)

[Scope of utility model registration request] 1. A front axle frame (5) comprising a clutch housing (4), a flywheel housing (3), an engine (2) and a front axle frame (5) connected in the front-rear direction to form a vehicle body (6). The radiator (7) and the battery (8) are arranged on the upper side, the engine (2), the radiator (7) and the battery (8) are covered with the bonnet (10), and the bonnet (10) is erected on the vehicle body (6). Front and rear support frame (23,
In the structure of the front part of the tractor in which the bonnet top plate (12) is attached to the front and rear support frames (23, 24), the side parts of the bonnet (10) are supported by the front and rear support frames (23, 24). It is formed by the fixed lower skirt body (14) and the bonnet top plate (12) and the side plate (13) that can be attached to and detached from the skirt body (14) above it, and the front part of the bonnet is fixed to the front axle frame (5). The structure of the front part of the tractor, which is formed by the lower skirt front member (16) and the bonnet top plate (12) and the front grill (15) which can be attached to and detached from the front support frame (23) above the skirt.