JPH0619384Y2 - Bonenet structure of mobile farm - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a bonnet structure for covering an engine or the like mounted on a mobile agricultural machine such as a tractor.

[Prior art]

In a mobile agricultural machine such as a tractor of this type, an engine 2 and a radiator 3 in front of the engine 2 are arranged in a bonnet 1, as shown in FIG. The connecting plate 4 in the direction along the front surface of the radiator 3 and the mounting plate 6 fixed to the bonnet top plate 5 are connected by the mounting bolts 7 to support the bonnet top plate 5. Was there. Further, the connecting plate 4 prevents the hot air from being blown back from the engine 2 to the radiator suction side.

However, the connecting plate 4 extending in the lateral direction along the upper part of the front surface of the radiator 3 needs to be thickened to have strength, and when the connecting plate 4 and the mounting plate 6 are assembled, the bonnet top plate is used. Since the mounting bolt 7 is present, the mounting bolt 7 must be set in the front-rear direction, and it is very difficult to visually align both holes and insert a tool, which makes assembly difficult. It was

Also, when opening and closing the cap 8 of the radiator 3,
There is a problem that it is difficult to operate since the connecting plate 4 approaching the cap 8 comes into contact with the hand, and further, when the air cleaner 9 is supported by the connecting plate 4, the support metal fitting 10 of the air cleaner 9 becomes long, There is a problem in that it is necessary to increase the strength of the support fitting 10.

[Purpose of device]

The present invention has been made in view of the above-mentioned conventional circumstances to solve these problems, and provides strength to the connecting plate without increasing the plate thickness of the connecting plate, and An object is to provide a bonnet structure for a mobile agricultural machine in which an assembly work with a bonnet is easy, a cap of a radiator can be easily opened and closed, and a supporting metal fitting for supporting an air cleaner is made compact. It is a thing.

[Constitution of device]

In the bonnet structure of the mobile agricultural machine of the present invention which achieves the above object, an air cleaner, a radiator and an engine are sequentially arranged from the front in a bonnet, and a hood top plate located above the radiator and the engine is provided with an opening / closing lid. In the hood structure of an agricultural machine, a pair of left and right frames supporting both sides of the radiator are erected on a chassis of a machine body on which the engine is mounted, and are connected between the upper portions of the pair of frames so as to be an upper front portion of the radiator. The plate is laterally fixed, and the intermediate portion of the connecting plate is formed as a downward inclined portion whose upper end side is separated from the cap provided on the upper surface of the radiator and inclined toward the front air cleaner side. The mounting plate provided on the upper part of the air cleaner is fixed to the inclined part via a tightening member, and the air cleaner is supported. It is characterized in that fixed to the inclined portion through the bracket.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be described.

As shown in FIGS. 2 and 3, the tractor 15 has a bonnet 1 arranged in front of the body, and steerable front wheels 16, 16 are arranged on both left and right sides of the bonnet 1, and behind the bonnet. A steering handle 17 is arranged in the.

An engine 2 is arranged in the rear of the bonnet 1,
A clutch housing 18 is fixed to the rear of the engine 2, and a mission case 19 extending rearward is fixed to the rear of the clutch housing 18, so that the body 20 of the tractor 15 extending in the front-rear direction is configured. I'm running.

A chassis 21 extending forward is fixed to the engine 2, and a radiator 3 located in front of the engine 2 is fixed above the chassis 21 by a frame 35 described later. A front wheel mission case 23 to which a front wheel drive shaft 22 disposed forward from a rear mission case 19 is interlockingly connected is disposed below.

In addition, the bonnet 1 includes a panel body 24 fixed to the body 20 behind the engine 2, a bonnet top plate 5 having its rear end fixed to the panel body 24 and covering the upper surface and extending forward, and the bonnet top plate 5. Front grille 25 fixed at the top, and side covers 2 covering both left and right sides
6 and 26, the lower side of the front grill 25 is fixed to the front side of a bottom plate 27 fixed to the chassis 21, and the bonnet top plate 5 is located above the engine 2 and the radiator 3. An opening / closing lid 5a is provided on the part.

A muffler 28 attached to the engine 2 is provided inside the above-mentioned bonnet 1.
Are arranged in the front and rear direction, and the tail pipe of this muffler 28
29 is arranged in the up-down direction.

A pair of left and right frames 35, 35 fixed to the left and right sides of the radiator 3 are provided in the vertical direction, and the lower portions 35a of the respective frames 35 are fixed to the chassis 21 as shown in FIG. 3A. . The pair of left and right frames 35 are connected and fixed at both end sides of a connecting plate 36 that extends in the lateral direction along the upper front surface of the radiator 3, and the upper end side of the intermediate portion excluding both end sides of the connecting plate 36 is Even if the connecting plate 36 is a thin plate-shaped member, the strength is great even if the connecting plate 36 is a thin plate, which is bent and formed apart from the cap 8 provided on the upper surface of the radiator 3 and inclined toward the front air cleaner 9 side. By connecting the upper portion of the downwardly inclined portion 37 and the mounting plate 6 fixed to the bonnet top plate 5 with mounting bolts (tightening members) 7, the bonnet top plate 5 is connected to the connecting plate. 36
It can be fixed via the downwardly inclined portion 37.

Further, the open / close lid may be supported above the connecting plate 36.

Connection plate 36 provided on the front upper part of the radiator 3,
And the left and right wind-shielding sponges 41, 41 attached along the respective vertical frames 35 prevent the hot air from being blown back from the engine 2 to the radiator suction side, and the connecting plate 36 faces downward. The air hose of the air cleaner 9 is provided in the hole 39 on one side opened in the inclined portion 37.
38 passes through the air cleaner 9, and the air cleaner 9 is fixed to the downward inclined portion 37 via a support metal fitting 40 having a short length.

Therefore, at the time of assembly as shown in FIG. 4A, by opening the opening / closing lid 5a, it is possible to visually check the mounting hole positions of the mounting plate 6 and the downward sloped portion 37 from diagonally behind. Therefore, the mounting bolt 7 can be easily inserted, and the tool K for tightening the mounting bolt 7 can be inclined, so that the tightening can be facilitated.

Further, as shown in FIG. 4B, since the downwardly inclined portion 37 of the connecting plate 36 can be moved away from the cap 8 of the radiator 3, it is possible to avoid contact with a hand for operating the cap 8 as in the conventional case, and Not only can the operation be facilitated, but also the air cleaner 9 can be supported by the supporting metal piece 40 having a short length fixed to the downward inclined portion 37, and the position close to the air cleaner 9 can be supported. .

Further, as shown in FIG. 4C, since the hole 39 provided in the downwardly inclined portion 37 also has a shape orthogonal to the axis of the air hose 38, the air hose 38 is damaged at the edge of the hole 39 due to vibration or the like. Can be blocked.

[Effect of device]

As described above, according to the present invention, between the upper parts of the pair of left and right frames, which stand on the chassis and support both sides of the radiator,
Since the connecting plate having the inclined downward inclined portion is laterally fixed, the strength of the connecting plate itself can be increased without increasing the wall thickness, and the bonnet ceiling attached to the downward inclined portion via the attaching plate. The plate can be firmly supported.

In addition, the downward slope is formed so that its upper end side is separated from the radiator cap and is inclined toward the front air cleaner side.Therefore, when the cap is opened or closed by hand, the hand may come into contact with the connecting plate. Therefore, it is possible to easily perform the opening and closing operation, and it is possible to effectively prevent accidental injury to the hand due to contact with the connecting plate.

Furthermore, when the mounting plate of the bonnet top plate is attached to the connecting plate, the tightening member can be tightened with a tool diagonally above the downwardly inclined portion of the connecting plate. It is possible to perform assembly work for visually aligning holes with the lid open and tightening the tightening member with a tool very easily and safely.

In addition, since the air cleaner is attached to the downwardly inclined portion via the support fitting, the air cleaner can be arranged closer to the connecting plate, and the length of the support fitting can be made shorter and compact. The strength (thickness) of the support fitting can be reduced to make it lightweight and inexpensive.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a vertical sectional view of a bonnet structure of a mobile agricultural machine, Fig. 2 is a partially cutaway plan view of Fig. 1, and Fig. 3 A is a front view with the front grill removed, FIG. 3B is a perspective view of the connecting plate, FIG. 4A is an operation explanatory view showing the assembled state, and FIG. 4B.
Is an operation explanatory view showing an operating state of the cap, FIG. 4C is an operation explanatory view showing an attached state of the air hose, and FIG. 5 is an enlarged side sectional view of a main part showing a conventional example. 1 ... Bonnet, 2 ... Engine, 3 ... Radiator, 5 ... Bonnet top plate, 5a ... Opening / closing lid, 6 ... Mounting plate, 7 ... Mounting bolt (tightening member), 8 ... Cap, 9 ... Air cleaner, 20 ... Airframe, 21 ... Chassis, 35 ... Frame, 36 ... Connecting plate, 37 ... Downwardly inclined part, 40 ... Supporting metal fittings.

Claims (1)

[Scope of utility model registration request] 1. A bonnet structure for a mobile agricultural machine in which an air cleaner, a radiator and an engine are sequentially arranged from the front in a bonnet, and an opening / closing lid is provided on a bonnet top plate located above the radiator and the engine. A pair of left and right frames supporting both sides of the radiator are erected on the chassis of the machine to be placed, and a connecting plate is laterally fixed between the upper portions of the pair of frames so as to be the front upper part of the radiator, and the connecting plate Is formed as a downward inclined portion whose upper end side is separated from the cap provided on the upper surface of the radiator and is inclined toward the front air cleaner side, and the mounting plate provided on the hood top plate is formed into the inclined portion. Agricultural machine fixed to the inclined portion via a support fitting and the air cleaner fixed to the inclined portion via a fastening member. Bonnet structure.