JPH0789456A - Front grille of tractor - Google Patents

Abstract

PURPOSE:To make an upper grille as a part of a front grille, mutually common among tractors different in hood height from one another. CONSTITUTION:A front grille 2 in front of a hood 1 to cover an upper part of an engine is joined to and installed on upper and lower two stages of an upper grille 5 and a lower grille 6 having grille nets 3 and 4 respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front grille on the front side of a hood of a tractor. According to the specifications of the tractor, a part of the front grille of the bonnet is shared between models having different heights of the bonnet. It is a thing.

[0002]

2. Description of the Related Art The front grill attached to the front of the hood of a tractor differs depending on the model specifications of the tractor. Especially when the output of the engine is different, it depends on the height of the bonnet. It is necessary to prepare different heights for the front grille. Therefore, the production cost tends to be high.

[0003]

The present invention provides an engine E
The front grill 2 of the front of the bonnet 1 that covers the upper portion is a front grill of a tractor, which is attached by joining two upper and lower stages of an upper grill 5 and a lower grill 6 each having grill nets 3 and 4, respectively.

[0004]

The front surface of the bonnet 1 of the tractor is covered with the front grill 2, but the outside air in the radiator of the engine E is sucked through the grill nets 3 and 4 of the front grill 2 and the radiator. To cool. If the bonnet 1 is tall, the upper grill 5
The front surface of the bonnet 1 can be covered by attaching the lower grill 6 to the lower part of the. Further, in the case where the height of the bonnet 1 is low, it is possible to cover only the upper grill 5 but not the lower grill 6 and cover the front surface of the bonnet 1. Therefore, it is possible to share the upper grille 5 between the models having different heights of the bonnet 1 and reduce the production cost.

[0005]

[Example] The tractor body 7 is provided with a front engine E,
The clutch housing 8, the transmission cases 9, 10 and the like are integrally connected to the rear portion, and a front axle bracket 11 is provided at the front portion of the engine E. The front axle bracket 11 has a front axle housing 12.
And a front wheel 13 which can be steered is mounted on both left and right ends, and rear wheels 15 are mounted on rear axle housings 14 on both left and right sides of the rear mission case 10.
The front and rear wheels 13 and 15 are driven to drive a four-wheel drive mode.

On the front side of the engine E, a radiator fan 16, a radiator 17, an air conditioning condenser 18, a condenser fan 19, an air cleaner 20, and a battery are provided.
21 and the like, which are covered with the bonnet 1 and the side cover 22 over the upper part and the left and right side parts of the side cover.
22 is configured to be removable. The front surface of the bonnet 1 is open, and the front grill 2 is detachably attached to this opening. The front grill 2 is composed of an upper grill 5 and a lower grill 6. However, due to the bonnet 1 having different heights, the upper grill 5 and the lower grill 5 are different depending on the model.
6 is used, and the lower model uses only the upper grill 5.

The upper grill 5 has an opening at the lower part, and the grill net 3 is attached thereto. A headlight 23 to a small lamp 24 and the like are attached to the upper part. This top grill 5
Inside the upper end of the bracket 25, a hook 26 is attached to a bracket 25 by a bolt 27 so that the hook 26 can be moved back and forth.
A rotary hook 30 is provided around the knob shaft 29 so as to be rotatable. The rotary hook 30 is rotated by the knob 28 so that the rotary hook 30 is engaged with the hook 26 to fix the attachment of the upper grille 5. You can When the upper grill 5 is removed, the rotating hook 30 is operated.

The bonnet 1 is located on the ceiling of the engine room and is fixed at appropriate front and rear positions with bolts 51 and the like. Locking grooves 52 are formed along the left and right sides of the bonnet 1 to cover the left and right side surfaces of the engine room.
The bent portion 53 at the upper end of 2 is fitted into the locking groove 52,
By pushing the hook pins 54 at the lower ends of the front and rear two places into the pin holes of the bracket 55 integrated with the front axle bracket 11, the knob 56 at the outer end of the hook pin 54 is pivotally operated, whereby the hook pin 54 is engaged. It is configured so that it does not come off.

The front end edges of the bonnet 1 and the left and right side covers 22 are aligned on the same plane, and the rear end edges of the front grill 2 are brought close to each other. 31
Is a bracket for attaching the turning hook 30 to the bonnet 1, and 32 is a hook spring for tensioning the turning hook 30 toward the engaging side. Reference numeral 33 denotes a boss portion integrated with a base portion of the knob shaft 29 of the knob 28. When the knob shaft 29 is inserted into the knob hole of the bonnet 1 by slightly projecting from the lower end edge of the knob 28, the knob 28 and the bonnet 1 surface are Keep the gap between them.

The lower grill 6 is interposed between the upper grill 5 and the lower front axle bracket 11 (also serving as a bumper in the illustrated example), and has an opening to form the grill net 4 therein. Have. Positioning protrusions 34 are provided on the lower surface of the lower grille 6, and a fitting portion 35 is formed on the upper surface of the front axle bracket 11 facing the positioning protrusions 34. Engage and attach lower grill 6.

Similarly, the upper grill 5 is mounted on the lower grill 6 or directly by engaging with the upper surface of the front axle bracket 11. Reference numeral 36 denotes a protrusion projecting from the lower surface of the upper grill 6, which engages with the fitting portion formed on the lower grill 6 or the front axle bracket 11. Such a front grill 2 is formed of a synthetic resin material. In the opening of the upper grill 5, vertical reinforcing members 37 are provided on both left and right sides to connect and reinforce the upper side and the lower side of the opening edge. The reinforcing member 37 is arranged along the back side of the grill net 3 so that it cannot be seen from the front side.

Incidentally, the front axle bracket 1
A cushion rubber 38 is provided on the fitting portion 35 of the protrusions 34 and 36 of the bumper 1 to the bumper, and the protrusion 34 is inserted into the pin hole which is the fitting portion 35 formed on the cushion rubber 38. 36 is inserted to position the front grill 2. 9 and 10, the upper grill 5
The upper and lower sides of the grill net 3 and the lower grill 6 are fixed by speed nuts 39 and 40, and when the lower grill 6 is mounted, the upper edge portion 41 of the lower grill 6 and A structure in which the upper edge of the upper grill 5 and the lower edge 42 are sandwiched between the upper and lower contact plates 43 and 44, and the upper and lower grills 5 and 6 are integrally attached and detached by tightening and fixing with bolts 45. Is.

Reference numeral 46 is a steering handle, 47 is a fender, 48 is a cabin, 49 is a lift arm, and 50 is a lower link. When the front grill 2 is removed, the knob 28 is rotated against the spring 32 to disengage the rotating hook 30 from the engagement with the hook 26, and is pulled upward to move the protrusion 34 from the fitting portion 35. remove.

When mounting the front grille 2, the operation may be carried out in the reverse order to position the front grille 2 or fix it by operating the knob 28. In FIGS. 11 and 12, the lower edge 57 of the upper grill 5 is projected to the inner periphery and fitted into the groove 58 formed on the outer periphery of the upper edge of the lower grill 6, so that the upper and lower grills 5, 6 are They are connected to each other, and a part of this connecting portion is tightened and fixed with a bolt and a nut 59.

[Brief description of drawings]

FIG. 1 is a side view of a front grill part.

FIG. 2 is a front view thereof.

FIG. 3 is a side view of a part thereof.

FIG. 4 is an exploded perspective view thereof.

FIG. 5 is a side view of a front grill mounting portion.

FIG. 6 is a side view of the knob portion.

FIG. 7 is a plan view thereof.

FIG. 8 is a side view of the tractor.

FIG. 9 is a side view of a front grill part showing another embodiment.

FIG. 10 is an exploded perspective view of a part thereof.

FIG. 11 is a side view of the front grill part showing another embodiment.

FIG. 12 is a perspective view of a part thereof.

[Explanation of symbols]

 1 Bonnet 2 Front grill 3 Grill net 4 Grill net 5 Upper grill 6 Lower grill E Engine

Front Page Continuation (72) Inventor Takashi Niiyama No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A front of a tractor in which a front grille 2 on a front surface of a bonnet 1 covering an upper part of an engine E is joined by being attached to upper and lower two stages of an upper grille 5 and a lower grille 6 each having grill nets 3 and 4, respectively. grill.