JPH07285467A - Bonnet seal for tractor - Google Patents

Abstract

PURPOSE:To enhance the sealing effect by simplifying a seal constitution between an engine room bottom part and a bonnet lower part in a tractor. CONSTITUTION:From an outer side part over to a front part of a front frame 3, positioning an engine 1 in an upper part and a front axle housing in a lower part, a side part bottom plate 9 and a front part bottom plate 10 are provided in a bottom part of an engine room covered with a bonnet 4 and in a bottom part of an air intake room covered with a front grille 7 in the front of a radiator 6. In this constitution, a bonnet seal for a tractor is formed by mounting a mounting part fitted of a series of hollow rubber seals 11 where lower end edge inner side surfaces of the bonnet 4 and the front grille 7 are brought into contact over peripheral edges of these bottom plates 9, 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonnet seal for a tractor, which seals the opening / closing portion of the lower end of the bonnet with a seal to prevent scattered mud and dust from entering the engine intake room. -Easy and secure attachment of the lever.

[0002]

PRIOR ART AND PROBLEM TO BE SOLVED BY THE INVENTION A radiator from a front bottom plate of a bottom of an intake room of a radiator is a radiator.
A seal made of urethane, felt material, etc. is provided between the outer periphery of the hood and the inner surface of the bonnet.
11073) is known. Further, in the engine room of the tractor, mud and dust often come in from the bottom side of the bonnet portion facing the rotation range of the front wheels.

[0003]

According to the present invention, an engine 1 is located at an upper part and a front axle housing 2 is located at a lower part.
From the outer side to the front side of the front frame 3 where the engine is located, the engine room 5 covered by the bonnet 4 and the bottom of the intake room 8 covered by the front grille 7 in front of the radiator 6 are provided with side parts. The bottom plate 9 and the front bottom plate 10 are provided, and the bonnet 4 and the front grille 7 are extended over at least the side edges D and D and the front edge E which are the outer peripheral edges of the front bottom plate 10 among the bottom plates 9 and 10. A bonnet seal of a tractor is constructed by fitting and mounting a series of mounting portions 12 of a hollow rubber seal 11 that abut the inner surface of the lower edge.

[0004]

Action and effect of the invention A series of hollow rubber seals 11 are attached over the outer peripheral edges of the left and right side bottom plates 9 of the engine room 5 and the front bottom plate 10 of the intake room 8. Since 12 are fitted and attached, even if there is a step in the rubber seal 11 attaching portion 12 between the left and right side edges DD of the front bottom plate 10 and the front edge E of the front bottom plate 10. Since a gap is unlikely to occur, the rubber seal 11 can be easily attached and detached, and the cooling air of the engine 1 that is pressure-fed from the vicinity of the radiator 6 does not directly blow on the ground surface to scatter mud and dust. It is possible to effectively prevent the entry of mud and dust into the chamber 8. In addition, the side bottom plate 9 and the front bottom plate 10 often have different mounting heights, shapes, and the like. Even in such a case, the rubber seal 1 at the outer peripheral edge of them is different.
1 is continuously formed, and the close contact of the bonnet 4 which is pressed and attached thereto can be uniformly maintained, so that the structure can be simplified.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor is integrally formed by connecting a front engine 1 to a clutch housing 13, a front mission case 14 and a rear mission case 15, and from the left and right sides of the engine 1 body to the left and right. By projecting the pair of front frames 3,
Front axle housing 2 with 17 front wheels on the lower side
Install. Rear axle housings 16 are provided on both left and right sides of the rear transmission case 15 so as to axially mount rear wheels 18, and a hydraulic case 20 having a lift arm 19 is mounted on the transmission case 16. A fender 21 and a cockpit 22 are provided. Reference numeral 23 is a steering wheel, and 24 is a dashboard.

The engine room 5 has a rear end fitted with a dashboard.
The front wall portion 25 of the door 24 is partitioned, the upper side and the left and right side portions are covered with the bonnet 4, and the bottom portion is covered with the side bottom plates 9 on the left and right outer side portions of the front frame 3. The intake rum 8 formed in front of the radiator 6 on the front side of the engine 1 is covered with the bonnet 4, the front side of the bonnet is covered with the front grille 8, and the bottom is covered with the front bottom plate 10. .

The intake room 8 accommodates an air cleaner 26, a battery 27 mounted on the front bottom plate 10, and the like. 28 is a headlight. The bonnet 4 is composed of an upper cover 4A on the ceiling and a side cover 4B that covers the left and right parts by engaging the upper edges 29 along the left and right end edges of the upper cover 4A. A catcher 30 is provided at the front and rear of the lower end of 4B, and a hook 31 on the inside is provided.
The hook pin 3 attached to the frame 33 in the room
2 can be engaged or disengaged.

The front grill 7 is formed above and below an upper grill 7A, a lower grill 7B and a headlight 28, and the headlight 28 is exposed at the front. A mounting pin 40 projecting downward is provided at a lower end portion of the front grill 7, and the mounting pin 40 is integrated with the frame 3 in a pin hole 4 of a bracket 41.
It can be installed by inserting it from above in 2. Vents are formed in the lower grill 7B to guide outside air into the intake room 8.

The side bottom plate 9 is attached to the outside of the left and right front frames 3 at the bottom of the engine room 5 by bolts 34, and the outer edge C of this side bottom plate 9 is the lower end edge of the side cover 4B. Approach the inner surface of the. Reference numeral 35 is a battery cable, which is fixedly held by a fixture 36 which is fastened together by the bolt 34. Reference numeral 37 denotes a hydraulic pipe, which is held by a fitting 39 fixed to the upper surface of the side bottom plate 9 with a bolt 38.

The front bottom plate 10 covers the bottom part of the intake room 8 in front of the radiator 6 and the left and right front frames.
Is provided above the frame 3, and the left and right side edges D are connected to the side bottom plate 9
Is formed along the front extension line of the outer edge C of the
The portion is formed between these left and right side edges D and D portions. The left and right side edges D and the front side edge E are formed with a step or a downward slope toward the outer peripheral side with respect to the surface of the central portion of the front bottom plate 10.

Although the side edge C of the side bottom plate 9, the side edge D of the front bottom plate 10 and the front edge E are not continuously formed by the radiator 6 and the front end corners, etc. A structure in which these are connected or connected in series and no space is formed may be used. The rubber seal 11 forms a hose-shaped hollow portion through elasticity, and is provided with a mounting portion 12 having a mounting groove along which a plate edge is fitted and clamped from above and below. The mounting portion 12 is fitted over the side edge C of each side bottom plate 9, the side edge D of the front bottom plate 10, and the front edge E to form a series of rubber seals 11.

In this way, the rubber seal 11 is continuously formed even if there is a seam spacing between the side edges C and the D front edge E, so that the rubber seal 11 contacts the outer surface of the rubber seal 11. The side cover 4B and the lower edge of the front grill 7 which are in contact with each other are evenly contacted with each other, so that a gap is unlikely to occur and vibration or the like is unlikely to occur. Pin hole 42 into which the pin 40 of the front grill 7 is fitted
Is formed on the front side of the rubber seal 11 portion attached to the front edge E portion of the front bottom plate 10, and the lower edge portion F of the front grill 7 is attached in a substantially horizontal plane. The rubber seal 11 is compressed at the lower end of the front edge E by the edge of the lower edge F when the mounting pin 40 is inserted, but is sealed by the rubber seal 11 after mounting.

[Brief description of drawings]

FIG. 1 is a front sectional view of an engine room portion of a bonnet portion.

FIG. 2 is a plan view of a part thereof.

FIG. 3 is a back cross-sectional view of the intake hood portion of the bonnet portion.

FIG. 4 is a partial plan view of an intake room portion.

FIG. 5 is a side view and a partially enlarged side view.

FIG. 6 is a side view of the tractor.

FIG. 7 is a plan view thereof.

[Explanation of symbols]

 1 Engine 2 Front Axle Housing 3 Front Frame 4 Bonnet 5 Engine Room 6 Radiator 7 Front Grill 8 Intake Room 9 Side Bottom Plate 10 Front Bottom Plate 11 Rubber Seal 12 Mounting Part

Claims (1)

[Claims] 1. A front frame in which an engine 1 is located at an upper part and a front axle housing 2 is located at a lower part.
The side bottom plate 9 and the front bottom plate are provided on the bottom of the intake room 8 covered by the front grill 7 in front of the engine room 5 and the radiator 6 covered with the bonnet 4 from the outer side part to the front part of the frame 3. 10 are provided, and the inner surfaces of the lower end edges of the bonnet 4 and the front grille 7 are connected to at least the side edges D and D or the front edge E which are the outer peripheral edges of the front bottom plate 10 among the bottom plates 9 and 10. A bonnet seal for a tractor in which a mounting portion 12 of a series of hollow rubber seals 11 is fitted and mounted.