JPH1028449A - Engine cover of movable agricultural machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine cover of a movable agricultural machine, enabling to reduce the weight of the engine cover, facilitate its manufacture, and simultaneously efficiently supply cooling winds to the radiator of the engine. SOLUTION: A frame 7 constituting the radiator-cooing wind intake of an engine cover 6 is blow-molded from a resin in a hollow shape having an opening 7a in the center, and a porous plate-like member 8 for closing the opening 7a is mounted on the periphery of the opening 7a. A plate 9 is fitted on the back surface side of the frame 7 at a prescribed distance from the plate-like member 8 so as to face to the suction opening peripheral edge of the suction duct 13 of a radiator 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine cover for a mobile agricultural machine, and preferably to a combine engine cover.
It is about.

[0002]

2. Description of the Related Art FIG. 1 is a schematic perspective view showing the basic structure of a conventional combine, which is composed of a vehicle body frame, a cockpit provided on the right front end of the vehicle body frame, and
It has a cutting section provided from the front of the driver's seat to the left side of the front end of the body frame, and a threshing section located behind the cutting section, and the combine travels through a running section provided below the body frame. It has become. An engine is disposed below the driver's seat in the cockpit, and the engine is concealed by a so-called engine cover a.

However, like the so-called body, the engine cover is formed entirely of a steel plate and is manufactured by press-forming a flat plate. Therefore, it is necessary to increase the thickness of the steel plate to have strength, and as a result, the weight increases.

Conventionally, a handle is provided on the side of the driver's seat of the combine for convenience in boarding. However, the conventional handle b is formed of a curved thin arm member as shown in the figure, and not only is the grip portion thin and difficult to grip, but the handle is separately attached to the upper end of the engine cover. Therefore, the number of parts has increased and the number of assembly steps has increased accordingly.

[0005]

SUMMARY OF THE INVENTION The present invention has been made based on a completely new idea with the aim of solving the above-mentioned problems in the prior art. In particular, the first aspect of the present invention provides an engine cover capable of efficiently supplying cooling air to a radiator while reducing the weight of the engine cover and facilitating its manufacture. The purpose is to
An object of the invention described in claim 2 is to eliminate the problem of the conventional handle portion.

[0006]

Means for Solving the Problems In order to achieve the above object, the technical means adopted by the present invention is to provide an engine cover for concealing an engine in a mobile agricultural machine having an engine below a driver's seat. Radiator of the engine cover
The frame constituting the cooling air intake has an opening at the center, has a predetermined thickness, and is resin-molded in a hollow shape by blow molding, and the opening is formed at the periphery of the opening of the frame. A porous plate-like member for closing the frame is mounted, and a rear surface of the frame has a predetermined distance from the plate-like member and a radiator.
A plate material is disposed so as to face the intake port peripheral edge of the intake duct of the heater, and the cooling air taken in from the opening through the porous plate-shaped member is guided to the intake duct by the plate material. Is what you do.

The frame has a predetermined thickness and is made of resin by blow molding into a hollow shape, so that a sufficient strength is secured while reducing the weight. Here, the predetermined thickness does not mean the thickness of the frame body,
It means the thickness of the entire frame body, which means that the frame body is formed so as to have a predetermined space between the front surface side and the back surface side (inside of the frame body).

[0008] The porous plate member means a member having ventilation holes for introducing radiator cooling air, and the shape, size, number and the like of the ventilation holes are not particularly limited. However,
The porous plate-shaped member is preferably formed from a punched metal or a mesh-shaped steel plate because it is necessary to prevent the intrusion of straw chips and the like.

The phrase "disposed so as to face the periphery of the intake port of the radiator intake duct" means, in other words, that a plate member is disposed so as to surround the intake port of the radiator intake duct. By doing so, the air taken in from the opening of the frame via the porous plate-like member is efficiently guided to the radiator duct. Usually, the area of the opening of the frame body is larger than the cross-sectional area of the intake port of the intake duct of the radiator, so that a plate material is provided on the back side of the frame body so as to face the intake port periphery of the intake duct. It regulates and regulates the flow of cooling air taken from the plant, and efficiently introduces it into the duct.

According to a second aspect of the present invention, in the engine cover according to the first aspect, a handle is integrally formed on a surface of an upper peripheral edge of the frame. Since the engine cover is made of resin, the handle can be formed simultaneously with the production of the engine cover, and there is no need to provide a separate handle as in the conventional case, so that the manufacturing process can be simplified, Cost reduction of the entire engine cover can be achieved.

The handle may be like a protrusion, but preferably the handle is formed in a concave shape. By doing so, the operator only has to lock his or her hand in the concave portion as needed, and does not need to grip the handle every time unlike the related art. In addition, the handle is recessed and the engine cover
If it is formed integrally with the main body, the design of the overall appearance of the combine is excellent.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on a combine illustrated as a preferred embodiment. FIG. 2 is a side view of a combine embodying the present invention. The combine is composed of a vehicle body frame 1, a control unit 2 provided on the right front end of the vehicle frame 1, and a control unit 2.
A cutting section 3 disposed from the front lower side of the vehicle frame 1 to the left side of the front end of the vehicle body frame 1, a threshing section (not shown) located behind the cutting section 3, and an engine 4 (shown in FIG. 3) disposed below the driver's seat. And travels via a traveling section 5 provided below the vehicle body frame 1.

A part of the body frame of the combine, a threshing unit, an engine and the like are covered with a so-called body.
In particular, the engine 4 is concealed by an engine cover 6 located on the side of the vehicle body. FIG. 3 is a partially cutaway front view showing a driver's seat, an engine, and an engine cover in the control section. FIG. 6B is a sectional view of the engine cover in FIG.

The engine cover 6 has a frame 7 having an opening 7a at the center for taking in radiator cooling air, and a frame 7
A porous plate-shaped member 8 mounted to close the opening 7a and having a vent, a plate 9 stretched on the back side of the frame 7, and mounted on the plate 9; An engine protection cover 10 that is formed in a substantially U-shape in side view from the front plate and the rear plate, and that partitions the upper side and the front and rear of the engine 4;
A driver's seat 11 is mounted on an upper plate of the protective cover 10.

The engine cover 6 is rotatably mounted on the combine body via a lower portion thereof, and its upper portion is normally fixed to the combine body with a bolt (not shown). When the bolt is removed and the engine cover 6 is rotated outward (in the direction of the arrow in FIG. 3), the engine cover 6 and the driver's seat 11 are turned together and the engine 4 appears. Has become.

Next, each component of the engine cover 6 will be described. FIG. 4 is a side view of the frame 7 constituting the radiator cooling air intake of the engine cover 6 as viewed from the front side, and FIGS. 5 (a), (b), (c), ( d) is a cross-sectional view taken along the line BB and AA in FIG. 4, respectively.
It is CC sectional drawing and DD sectional drawing. The frame 7 is formed by curving an upper right corner of a substantially rectangular main body in a side view, and has an opening 7a having a predetermined area in the center. The size of the opening 7a is not particularly limited, but it needs to have a certain size because it is necessary to introduce sufficient air to cool the radiator.

The frame 7 is made of a hollow resin by blow molding to reduce the weight and secure the strength. As is clear from the cross-sectional view, the periphery of the opening 7a protrudes outward compared to the outer periphery of the frame, and the frame 7 has a predetermined thickness (depth) d as a whole, A predetermined space is formed inside the frame. As shown in FIGS. 5 (d) and 7, the frame 7 has an uneven surface 7b formed at the upper and lower peripheral edges of the opening 7a. This is for facilitating the mounting of the camera.

On the surface of the upper peripheral edge of the frame 7, a concave portion is formed close to the curved peripheral edge, and the concave portion functions as a handle 7c. The shape of the handle is not limited to the shape of the embodiment, and may be, for example, a protrusion to support the hand. Note that, for safety reasons, the recessed portion is hermetically closed without providing an opening. In order to fulfill the function as a handle, an opening may be provided in the frame body and a hand may be inserted into the opening, but such a structure is not adopted because it is dangerous when the aircraft body suddenly moves. .

FIGS. 6A and 6B show a porous plate member 8,
FIG. 7 is a cross-sectional view of the frame 7 in a state where the plate member 9 is mounted, and corresponds to FIGS. 5A and 5B, respectively, and FIG.
7B is a side view of the frame 7 as viewed from the back side, and FIG.
(A), a porous plate-like member, an engine protection cover;
Is shown by a two-dot chain line, and a plate material is shown by oblique lines.

As shown in FIGS. 6 and 7B, a porous plate member 8 is stretched from the inside around the opening 7a of the frame 7 so as to close the opening 7a. Has become. The porous plate member 8 is provided with a not-shown ventilation hole (for example, a mesh) through which air passes, and is formed of a punching metal in the embodiment. In addition, the plate member 8
Are formed so as to be wavy in the vertical direction, thereby increasing the surface area to improve the intake efficiency and improve the design. The size of the ventilation hole is not particularly limited, but it is preferable that the ventilation hole is made fine to prevent the intrusion of straw chips and the like into the engine, especially the radiator. The mounting means of the plate-shaped member 8 is not particularly limited, but is mounted from the inside of the frame by, for example, bolts or the like.

The plate member 9 is made of a steel plate. As shown in FIG. 7, a portion 9a corresponding to the upper frame of the frame 7 and portions 9b and 9b corresponding to the left and right vertical frames of the frame 7 are substantially U-shaped in side view. It is stretched on the back surface side of the frame 7 with a predetermined space between it and the porous plate member 8. The space surrounded by the upper frame 9a of the plate material and the left and right vertical frames 9b, 9b is smaller than the area of the opening 7a. The intake duct 13 of the
Frame 7 except for a communication part (a space surrounded by the plate material 9)
To close the back side.

The plate member 9 is an intake duct 13 of a radiator 12.
And the space surrounded by the plate member 9 is the air intake duct 13 of the radiator 12.
Is located so as to correspond substantially to the suction port. By doing so, the air taken in from the opening 7a having an area larger than the cross-sectional area of the intake port of the intake duct 13 is efficiently introduced into the duct 13 of the radiator 12 through the plate material 9. . A portion of the plate 9 corresponding to the upper frame 9a of the frame is provided with an intake hose 14 communicating with the air cleaner.
Is provided with an insertion hole 9c through which the tip of the hole is inserted. The plate 9 also has the significance of reinforcing the frame 7 made of resin by being stretched on the back side of the frame 7. Further, since the upper portion 9a of the plate 9 closes the upper portion on the back surface side of the frame 7 in a hermetically closed manner, air does not enter from above the frame 7.

As shown in FIG. 6B, the intake duct 13
A dustproof filter 15 is disposed at the intake port of the filter so as to partition the space inside the frame 7 from the radiator side.
This prevents dust and dirt from entering the core of the radiator. In the figure, reference numeral 16 denotes a fan. In addition, the plate material 9 and a portion that abuts on the peripheral edge of the intake port of the lower frame of the frame body 7 include:
A cushioning material (not shown) such as a rubber and a sponge is provided.

As is apparent from FIG. 6B, the intake duct 13 is disposed slightly below the opening 7a of the frame 7, and the cooling duct for the radiator cooling air provided in the frame 7 is provided. The position of the intake (opening 7a) and the position of the intake of the intake duct 13 do not completely match. This is because the opening 7a of the frame 7 needs to be arranged at a certain height in order to prevent the grain stem from being pulled in during the middle splitting operation. On the other hand, the arrangement position of the radiator is determined by other members. Is determined to some extent due to the positional relationship with However, the arrangement relationship between the cooling air intake and the intake duct is not limited to this, and both may be provided at the same height.

Since the engine cover 6 according to the present invention is constructed as described above, the radiator cooling air taken in from the opening 7a of the frame 7 through the porous plate member 8 does not While being guided by a plate material 9 stretched on the back side of 7, it is introduced into an intake duct 13 of a radiator 12. The use of the frame 7 formed by resin molding by blow molding for a part of the engine cover 6 simplifies the manufacture of the engine cover, and also provides a lightweight engine cover having sufficient strength. -Can be provided. Further, by rotating the frame body 7 outward, the engine protection cover 10 and the driver's seat 11 are integrally rotated to expose the engine, thereby facilitating maintenance. Although a combine has been described as an example of a preferred embodiment, the present invention is not limited to a combine, but can be used for a mobile agricultural machine in general.

[0026]

According to the present invention, in a mobile agricultural machine in which an engine is arranged below a driver's seat, an engine cover for concealing the engine is provided, and a radiator cooling air intake of the engine cover is provided. The frame body has an opening in the center, has a predetermined thickness, and is resin-molded into a hollow shape by blow molding, and a porous plate-like member that closes the opening is provided around the opening of the frame. A plate material is disposed on the back side of the frame body at a predetermined distance from the plate-shaped member so as to face the periphery of the intake opening of the intake duct of the radiator, and from the opening. The cooling air introduced through the porous plate-shaped member is guided to the intake duct by the plate material. Therefore, the strength and the function of supplying the radiator cooling air are reduced without reducing the engine cover. − Can be reduced in weight, Concrete cost can also be reduced.

In the case where the handle portion is integrally formed on the surface of the upper peripheral edge of the frame body, there is no need to provide a separate handle portion as in the conventional case, so that the manufacturing process can be simplified and
Cost reduction of the entire engine cover can be achieved. In addition, since the handle portion is integrally formed on the front side of the engine cover, there is no possibility that the handle portion is accidentally hit by an object and the handle portion is damaged, and furthermore, the design of the overall appearance of the combine is improved. Excellent.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a conventional combine.

FIG. 2 is a side view of a combine embodying the present invention.

FIG. 3 is a partially cutaway front view showing a driver's seat, an engine, and an engine cover in a control section.

FIG. 4 is a side view of the frame viewed from the front side.

5 (a), (b), (c), and (d) are cross-sectional views taken along line BB, line AA, line CC, and line DD of FIG. 4, respectively. FIG.

FIG. 6 is a cross-sectional view of the frame body with the porous plate-shaped member and the plate material mounted thereon, and corresponds to FIGS. 5A and 5B, respectively.

7A is a side view of the frame body viewed from the back side, FIG.
FIG. 2B is a diagram in which the porous plate-like member and the engine protection cover are indicated by a two-dot chain line in FIG.

[Explanation of symbols]

 Reference Signs List 6 engine cover 7 frame 7a opening 7c handle 8 porous plate member 9 plate 10 engine protection cover 11 driver's seat 12 radiator 13 intake duct

Claims (2)

[Claims] In a mobile agricultural machine having an engine disposed under a driver's seat, an engine cover for concealing the engine is provided. A frame constituting an intake of a radiator cooling wind of the engine cover includes: It has an opening in the center, has a predetermined thickness, and is resin-molded into a hollow shape by blow molding, and a porous plate-like member that closes the opening is attached to the periphery of the opening of the frame. A plate member is disposed on the back side of the frame so as to face the periphery of the intake port of the intake duct of the radiator at a predetermined distance from the plate member, and a porous plate is provided from the opening. An engine cover for a mobile agricultural machine, wherein cooling air taken in through a member is guided to the intake duct by the plate member. 2. The engine cover according to claim 1, wherein a handle portion is integrally formed on a surface of an upper peripheral edge of the frame body.