JPH076069Y2 - Driver's seat support structure of harvester - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a harvester such as a combine harvester, and more particularly to a structure near an engine bonnet for supporting a driver's seat.

[Conventional technology]

In a combine harvester, which is one of the harvesters, for example, as disclosed in Japanese Utility Model Laid-Open No. Sho 63-78534, the outside air is cooled by a wind outside the engine bonnet that covers the engine and radiator on the side of the machine. In some cases, a cooling air introduction case for guiding the radiator is provided, and a driver's seat is provided on the upper wall of the engine bonnet.

Since there is not enough space in the vicinity of the driver's seat for harvesters such as combine harvesters, the driver's seat is installed on the upper wall of the engine bonnet so that the narrow space can be used as effectively as possible.

[Problems to be solved by the device]

When the driver's seat is provided on the upper wall of the engine bonnet as described above, the driver sits near the engine, and the engine noise is still annoying to the driver.

It is an object of the present invention to configure a reaper and harvester so that when the driver's seat is provided on the upper wall of the engine bonnet, engine noise is prevented from reaching the ears of the driver.

[Means for Solving the Problems]

The feature of the present invention resides in the following structure in the driver seat support structure of the above harvester.

It is equipped with an engine bonnet that covers the engine and radiator on the side of the machine body, a cooling air introduction case is provided on the outside of the engine bonnet body, and an intake port is provided on the lateral side of the cooling air introduction case. The outside air is used as cooling air through the cooling air introduction case and is guided to the radiator.The upper wall of the engine bonnet is provided with an intake duct having an intake port and the driver's seat. As a hollow structure surrounded by the inner and outer wall members of the airframe front side wall, from the intake duct as the outside air sucked from the intake port of the intake duct as a cooling air, through the space in the upper wall of the engine bonnet or in the front side wall of the airframe, The guide is provided inside the cooling air introduction case.

[Action]

(I) When configured as in the present invention, as shown in FIGS. 1 and 2, for example, when the driver is seated on the driver's seat (9) on the upper wall (3a) of the engine bonnet (3). The upper wall (3a) of the engine bonnet (3) and the front side wall (3b) of the fuselage are located in the passage where noise from the engine (1) is most likely to reach the driver's ears.

As a result, the upper wall (3a) and the front side wall (3b) of the engine bonnet (3) have a hollow double-walled sound-insulating structure to reduce engine noise reaching the ears of the driver. be able to.

(Ii) For example, as shown in FIG. 1 and FIG. 2, when the upper wall (3a) of the engine bonnet (3) and the front side wall (3b) of the fuselage have a hollow double-wall structure, the air passage is formed in this. Can be

As a result, cooling air from the intake duct (5) provided on the upper wall (3a) of the engine bonnet (3) as in the present invention is transferred to the inside of the upper wall (3a) of the engine bonnet (3) or the front wall ( When guided into the cooling air introduction case (4) through the inside of 3b), the cooling air introduced from the intake port (4a) of the cooling air introduction case (4) to the radiator (2) becomes
The cooling air from the intake duct (5) is added.

[Effect of device]

As described above, the upper wall of the engine bonnet and the front side wall of the fuselage located in the passage where engine noise is most likely to reach the driver's ears have a hollow double-walled structure with a high sound insulation effect. The noise of the engine reaching the ears can be reduced and the driver's discomfort can be suppressed.

By effectively utilizing the hollow double wall structure for the purpose of sound insulation as described above, the cooling air from the cooling air introduction case is guided to the radiator by the cooling air from the intake duct at the upper part of the engine bonnet. Therefore, suppression of engine overheating can be expected.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings using a combine that is one of the harvesters.

As shown in FIG. 2 and FIG. 4, the engine (1) and the radiator (2) are arranged on the front right side of the machine body, and the upper side of the engine (1) and the radiator (2) and the front and rear sides of the machine body are covered. The engine bonnet (3) is provided so that As shown in FIGS. 1 and 2, a hollow double wall in which an upper wall (3a), a front body side wall (3b) and a rear body side wall (3c) of an engine bonnet (3) are surrounded by inner and outer wall materials. It has a wall structure, and wall surfaces (3d) are provided on the outside and inside of the engine bonnet (3).

As shown in FIGS. 1, 2, and 4, a cooling air introduction case (4) for guiding cooling air to the radiator (2) is connected to the outside of the engine bonnet (3) to connect the cooling air introduction case (4). An intake port (4a) with a dust screen is provided on the lateral side of the. An intake duct (5) is provided on the upper wall (3a) of the engine bonnet (3). As shown in FIGS. 1, 2, and 3, the intake duct (5) has an engine bonnet side portion (5a) connected to the engine bonnet (3) by an inclined parting line (A) that goes upward toward the outer surface of the fuselage. , A driving cabin side portion (5b) connected to a driving cabin (6) described later. Engine bonnet (3)
A driver's seat (9) is provided on the upper wall (3a), and a driver's cabin (6) is attached so as to cover the engine bonnet (3), the intake duct (5) and the driver's seat (9).

With the above structure, as shown in FIGS. 2 and 1, the outside air serves as cooling air due to the suction action of the fan (7), and is sucked into the cooling air introduction case (4) from the intake port (4a) to cool it. It is guided to the radiator (2) through the wind introduction case (4). Then, outside air is taken in as cooling air from the intake port (5c) with a dust net of the intake duct (5), the cooling air passes through the inside of the intake duct (5), and the upper wall (3a) of the engine bonnet (3) The cooling air introduction case (4) enters through the opening (3e) through the inside of the upper wall (3a) and the inside of the airframe front side wall (3b) and through the opening (3f). An air intake (3g) with a dust net is also provided on the front side wall (3b) of the airframe, and the cooling air taken in through this air intake (3g) also passes through the inside of the front side wall (3b) and opens (3f). ) Into the cooling air introduction case (4). A cooling metal introduction case (4) is provided with a punching metal-like jammer plate (16) for dispersing the suction action of the fan (7). As shown in FIG. 3 and FIG. ) To the front of the fuselage and open the door (8) of the driving cabin (6) to allow the driver's seat (9) to pass through the open part of the door (8) and the engine bonnet (3). The cooling air introduction case (4) and the air intake duct (5) on the engine bonnet side (5a) can be united as a unit and tilted outward around the longitudinal axis (P ₁ ) to operate.

Next, the structure of the muffler (10) will be described. As shown in FIG. 5, exhaust gas from the engine (1) flows as shown by the solid line, and outside air enters into the muffler (10) as shown by the dotted line. In this case, muffler (10)
Since the front and rear parts (10a) are extremely heated, another wall (10b) is installed in front of this to create a double structure.
The front and rear parts (10a) of the muffler (10) are configured so as not to be extremely heated. As shown in FIGS. 6 and 7, the outside air is sucked from the connecting portion of the muffler (10) between the first exhaust pipe (11) and the second exhaust pipe (12), A taper-shaped pipe (13) is also attached to the end of the exhaust pipe (12) to suck in the outside air. As a result, the temperature of the exhaust gas is reduced as much as possible.

[Another embodiment]

As shown in FIGS. 8 and 9, in addition to the structure of the present invention, the cooling air introduction case (4) is provided with an intake port (4a) which is offset toward the rear side of the machine body and faces the intake port (4a). The baffle plate (14) is provided to bend the passage from the intake port (4a) to the radiator (2) so that the engine (1) passes through the intake port (4a) of the cooling air introduction case (4). The noise of the engine (1) that emerges may be reduced.

As shown in FIG. 9, in addition to the structure of the present invention, a baffle plate (15) is also provided in the intake duct (5) so that the intake hood (5c) of the intake duct (5) is connected to the engine hood (3). By bending the passage to the opening (3e) of the upper wall (3a), the engine (1) exiting from the intake port (5c) of the intake duct (5) through the opening (3e) of the upper wall (3a). The noise may be reduced. A sponge or the like may be adhered to the inner surface of the engine bonnet (3) as a sound absorbing material, or the engine bonnet (3) itself may be attached to the machine body via a vibration proof rubber or the like.

In the claims of the utility model registration, reference numerals are given for convenience of comparison with the drawings, but the invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1 shows an embodiment of a driver's seat support structure of a harvester according to the present invention, FIG. 1 is an exploded perspective view of an engine bonnet and an intake duct, FIG. 2 is a vertical sectional front view of an engine bonnet and an intake duct, FIG. Fig. 3 is an exploded perspective view of the engine bonnet, intake duct, operating cabin, etc., Fig. 4 is a side view of the first half of the combine, Fig. 5 is a sectional view of the muffler, and Fig. 6 is a simplified side view from the engine to the muffler and the exhaust pipe. FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6, FIG. 8 is a cross-sectional plan view of an engine bonnet according to another embodiment, and FIG. 9 is a vertical sectional front view of an engine bonnet according to another embodiment. . (1) ... Engine, (2) ... Radiator, (3) ...
… Engine bonnet, (3a) …… Engine bonnet top wall, (3b) …… Engine hood front fuselage side wall,
(4) …… Cooling air introduction case, (4a) …… Cooling air introduction case intake port, (5) …… Intake duct, (5c) …… Intake duct intake port, (9) …… Driver's seat.

Claims (1)

[Scope of utility model registration request] 1. An engine bonnet (3) for covering an engine (1) and a radiator (2) on a lateral side of the machine body, and a cooling air introduction case (4) outside the machine body of the engine bonnet (3). An inlet (4a) is provided on a lateral side surface of the cooling air introduction case (4), and the outside air sucked from the intake (4a) is used as cooling air to introduce the cooling air introduction case (4).
And an air intake duct (5) having an intake port (5c) on the upper wall (3a) of the engine bonnet (3) and a driver's seat (9). And an upper wall (3a) of the engine bonnet (3) and a front body side wall (3b) are surrounded by inner and outer wall materials to form a hollow structure from the intake port (5c) of the intake duct (5). The cooling air introduction case (4) is introduced from the inside of the intake duct (5) into the upper wall (3a) of the engine bonnet (3) or the space in the front side wall (3b) of the machine body by using the sucked outside air as cooling air. ) A structure for supporting the driver's seat of the reaper harvester that is guided inside.