JPH07228160A - Dust discharge structure for tractor - Google Patents

Abstract

PURPOSE:To discharge dust outside without opening a bonnet by providing the front lower part of a radiator with a shielding plate for receiving dust falling from a dust- proof net, and making the shielding plate changeable into a dust receiving attitude and a dust drop attitude by an attitude changing-supporting means. CONSTITUTION:A dust-proof net 8 is removably mounted to the front face of a radiator 3 by fastening means 21, 22, and a partition plate 23 is provided at the front lower part to partition a bonnet 7 so that air sucked into the radiator 3 is prevented from flowing to the other part. The partition plate 23 is provided with an opening formed on the front side from directly under the front face of the dust-proof net 8 and made closable by a shielding plate 9 that can be in charge of falling dust. Both sides of the coil spring 26 of an attitude changing means 10 are locked to the lateral side parts of the shielding plate 9 and the partition plate 23 so as to energize the shielding plate 9 in the direction of closing the opening, and the shielding plate 9 is changed into a dust receiving attitude and a dust drop attitude by operating the annular part of the coil spring 26 with the finger. Dust can be thereby dropped and discharged without opening the bonnet 7 so as to enable easy disposal of collected dust.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust discharging structure of a tractor used for agricultural purposes.

[0002]

2. Description of the Related Art For example, in an agricultural tractor used for cutting grass or the like, as disclosed in Japanese Utility Model Laid-Open No. 5-44654, a battery is mounted in front of a radiator on an axle frame and a stay is installed. An air cleaner is attached via this, and these are surrounded by a bonnet.To absorb a large amount of dust such as grass and insects into the radiator, a dust net (insect net) made of a flexible material is placed in front of it. ing.

One end of the dustproof net is detachably attached to a radiator, the middle part to the free end is slackened in a U-shape, and the dustproof net is arranged between the radiator and the battery. The free end is pulled out above the battery. Yes, the dust-proof net is designed to collect dust and to catch dust that has adhered to it, and to remove it from the radiator by opening the bonnet for cleaning. .

[0004]

In the above prior art, the dustproof net can be cleaned by opening the bonnet, but the bonnet must be opened to remove the dust caught by falling. When picking up the dustproof net, dust that has adhered may fall from the dustproof net and fall under the front of the radiator and collect.The dust thus collected may accumulate in the bonnet in large numbers such as batteries and air cleaners. Since there is a vehicle accessory, it is difficult to clean even if the bonnet is opened, and the dust that is left without being removed adheres to the dustproof net again, which repeats a vicious cycle.

According to the present invention, a shield plate for receiving dust falling from the dustproof net is provided in the lower front portion of the radiator, and the shield plate is supported so as to be changeable from the dust receiving posture to the dust falling posture. Once you receive the falling dust,
An object of the present invention is to provide a dust discharge structure of a tractor that can be dropped and discharged to the outside without opening the bonnet.

[0006]

A concrete means for solving the problems in the present invention is to mount a battery 4 in front of a radiator 3 on an axle frame 2 and attach an air cleaner 6 via a stay 5, Bonnet 7
In a tractor which is surrounded by the radiator 3 and has the dust-proof net 8 arranged on the front surface of the radiator 3, the dust-proof net 8 is provided at the lower front portion of the radiator 3.
That is, a shield plate 9 for receiving dust falling from the device and a posture changing support means 10 for supporting the shield plate 9 from the dust receiving posture A to the dust dropping posture B are provided.

[0007]

The dust, such as grass and insects sucked into the bonnet 7 from the front, is prevented from entering the radiator 3 by the dustproof net 8, and adheres to the dustproof net 8. If a large amount of dust adheres to the dustproof net 8, the dust that has adhered due to vibrations at the time of starting the engine and taking out the dustproof net 8 falls, and the radiator 3
It is received by the shielding plate 9 at the lower front part of the and accumulates on it.

When the shield plate 9 is changed from the dust receiving posture A to the dust dropping posture B via the posture changing and supporting means 10, the dust accumulated thereon is dropped and discharged to the outside of the bonnet 7. When the shielding plate 9 is returned to the dust receiving posture A after discharging the dust, the dust receiving action is performed again with the upper surface thereof cleaned. The bonnet 7 need not be opened as long as the accumulated dust is removed.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5, reference numeral 12 denotes an agricultural tractor with a cabin, which directly connects an engine 13, a transmission case 14 and the like to form a vehicle body, projects an axle frame 2 forward from the engine 13, and sucks a radiator on the axle frame 2. 3, a battery 4 is mounted in front of the radiator 3, and an air cleaner 6 is attached via a stay 5, and these are surrounded by a bonnet 7, and a front grill 15 and a skirt 16 are provided on the front surface of the bonnet 7. It is arranged.

The axle frame 2 is formed of a pair of left and right steel plates (or may be a cast product), the radiator 3 is mounted on the mounting portions 17 formed on the left and right steel plates, and the stay 5 is erected on the mounting portion 18 in front of it. It is set up. In addition, the skirt 16 is attached to the attachment portion 19 in front of the attachment portion 18.
Is fixed and the front grill 15 is attached to the stay 5.

A dustproof net 8 is arranged on the front surface of the radiator 3, and the dustproof net 8 has a pair of upper and lower hooks 21 on the left and right, which are hooked on hooking portions 22 provided on the side surfaces of the radiator 3. It is detachably attached. The hook 21
The hook 22 is formed on the dust net 8 and the radiator 3, respectively, or guide rails for inserting the dust net 8 from above are provided on the left and right sides of the radiator 3 so that the dust net 8 can be prevented. 3 may be detachably held.

A partition plate 23 is arranged in the lower front portion of the radiator 3. This partition plate 23 is attached to the stay 5 or the lower portion of the radiator 3 or the axle frame 2, and the wind to be sucked into the radiator 3 does not pass through the lower portion of the radiator 3 and reach the engine 13 side. Are separated. This partition 23
An opening 24 is formed in the center of the. The opening 24 is formed in the range from just below the front surface of the dustproof net 8 to the front side,
It can be opened and closed by the shield plate 9. Therefore, this shielding plate 9 can be received when the dust attached to the front surface of the dustproof net 8 falls.

The shield plate 9 is bent so that the rear side of the flat plate is rounded, and both ends of the support shaft 25 fixed to the lower surface of the partition plate 23 are hooked so as to be swingable about the horizontal axis. Both ends of a pair of left and right coil springs 26 are engaged with the left and right side portions and the partition plate 23.
The shield plate 9 is biased by the lower surface of the partition plate 23 by 6 to close the opening 24.

The partition plate 23, the support shaft 25, the coil spring 26, etc. constitute a posture changing support means 10. The shield plate 9 is rocked by hooking a finger on an annular portion of the coil spring 26 and swinging the shield plate 9. Is in a dust receiving position A (a solid line position in FIG. 2) that abuts the partition plate 23 and closes the opening 24. Line attitude) and is supported so that the attitude can be changed accordingly.

Therefore, the coil spring 26 serves to close the shield plate 9, prevents the shield plate 9 from coming off the support shaft 25, and serves as a handle when opening and closing the shield plate 9 (changing the posture). Therefore, the shield plate 9 can be opened and closed from either the left or right side of the tractor 12. The posture changing support means 10 includes a support shaft 25, an axle frame 2,
The shield plate 9 is attached to the radiator 3 or the stay 5, the shield plate 9 is formed in the size of the partition plate 23, and the coil spring 26 is provided between the shield plate 9 and the mounting member of the support shaft 25. It is also possible to partition almost the entire surface with the shielding plate 9 and receive dust so that the dust can be discharged to the outside.

Further, the posture changing support means 10 includes the support shaft 2
5 is fixed to the shield plate 9, a member for supporting the shield plate 9 is provided on the axle frame 2, the radiator 3 or the stay 5 side, a tension spring is used instead of the coil spring 26, or the shield plate 9 is used without using a spring. It is also possible to provide a stopper that is locked in the dust receiving posture A. In FIGS. 1 and 3, 27 is a radiator fan, and 28 is a sealing material for preventing air from passing over the radiator 3 and on the left and right sides.

By the way, when the tractor 12 is used for mowing work, a large amount of finely cut grass and the like enters from the front grill 15, so that the air intake portion of the front grill 15 itself is easily clogged. Therefore, in FIGS. 1 and 5, the upper and lower air intake portions 31,
32, and the nets 33 and 34 are attached to each, and the air intake portion 35 is also formed on the front and side surfaces of the skirt 16 and the net 36 is attached, thereby greatly expanding the air intake area. There is.

By expanding the air intake area on the front side of the bonnet 7 in this way, the suction wind speed can be halved, and the suction of grass, grass, etc. can be reduced, and
It is possible to make the nets 33, 34, 36 finer than in the past, which also makes it possible to reduce the inhalation of grass, grass and the like. The upper net 33 is attached to the entire surface of the upper air intake portion 31 so that the wind does not leak into the bonnet 7 from between the upper grill 33 and the front grill 15.

Reference numeral 38 is an entrainment prevention plate provided between the lower side of the radiator 3 and the engine 13. When the radiator wind flows downward, it winds up grass and ash in the field,
Since it is sucked into the radiator 3, the wind-up prevention plate 38 prevents the radiator wind from flowing downward, and allows the radiator wind to flow downward behind the engine 13.

[0020]

According to the present invention described in detail above, a shield plate 9 for receiving dust falling from the dustproof net 8 on the lower front portion of the radiator 3 and the shield plate 9 is changed from the dust receiving posture A to the dust dropping posture B. Since the posture changing support means 10 for supporting the change is provided, when the engine 13 is stopped or the dustproof net 8 is provided.
Even if the attached dust falls from the dust-proof net 8 when it is taken out for cleaning, etc., it can be received by the shielding plate 9, and the accumulated dust is collected from the dust receiving posture A by the shielding plate 9. Only by changing to the falling posture B, it is possible to easily drop and discharge to the outside of the bonnet 7, and this can be performed without opening the bonnet 7, and the collected dust can be easily treated.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged side sectional view of the main part.

FIG. 3 is a plan view of the main part.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a side view of the front part of the tractor.

[Explanation of symbols]

 2 Axle frame 3 Radiator 4 Battery 5 Stay 6 Air cleaner 7 Bonnet 8 Dustproof net 9 Shield 10 Position change support means A Dust receiving position B Dust dropping position

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[Procedure amendment]

[Submission date] March 16, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

A partition plate 23 is arranged in the lower front portion of the radiator 3. This partition plate 23 is attached to the stay 5 or the lower portion of the radiator 3 or the axle frame 2, and the wind to be sucked into the radiator 3 does not pass through the lower portion of the radiator 3 and reach the engine 13 side. Are separated. The partition plate 23
3 to the radiator 3 in FIGS. 1 to 3, and the stay 5 in FIGS.
Attached to each. An opening 24 is formed in the center of the partition plate 23. The opening 24 is formed in a range from just below the front surface of the dustproof net 8 to the front side thereof, and can be opened and closed by the shield plate 9. Therefore, this shielding plate 9
Can be received when the dust attached to the front surface of the dustproof net 8 falls.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

As shown in FIG. 3, the shield plate 9 is mounted so that the rear side of the flat plate is bent into a circle and both ends thereof are hooked on a support shaft 25 fixed to the lower surface of the partition plate 23 so as to be swingable about a horizontal axis. The left and right side portions of the shield plate 9 and the partition plate 23 are engaged with both ends of a pair of left and right coil springs 26. The coil springs 26 allow the shield plate 9 to close the opening 24 of the partition plate 23. It is biased to the lower surface.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Figure 6

[Correction method] Added

[Correction content]

FIG. 6 is an enlarged side sectional view in which a partition plate is attached to a stay.

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Added

[Correction content]

[Figure 6]

Claims (1)

[Claims] 1. A battery (4) is mounted in front of a radiator (3) on an axle frame (2), an air cleaner (6) is attached through a stay (5), and these are surrounded by a bonnet (7). In the tractor having the radiator (3) provided with the dustproof net (8) on the front side thereof, a shield plate (9) for receiving dust falling from the dustproof net (8) at the lower front portion of the radiator (3), and the shield plate A dust discharging structure for a tractor, comprising: posture changing support means (10) for changingably supporting (9) the dust receiving posture (A) to the dust falling posture (B).