JP2022104758A - Water entering prevention structure of cabin - Google Patents

Abstract

To provide a water entering prevention structure of a cabin, capable of preventing water from invading from a pillar into the cabin.SOLUTION: Water invades from a screw hole screwed with a screw 35 into a square cylindrical pillar 21 since a blade 34 of a hinge 25 is mounted on the pillar 21 by the screw 35, and thereby the water possibly flows out from the pillar 21 into the cabin. Therefore, a drain hole 43 for making the inside of the pillar 21 communicate with the outside of a combine harvester 1 is formed in a right-front corner part in a bottom edge of the pillar 21.SELECTED DRAWING: Figure 4

Description

The present invention relates to a cabin water entry prevention structure.

For example, in a combine, a reaping device is arranged at the front portion, and a main frame is provided behind the reaping device. A cabin containing operating members such as a driver's seat, operating levers, and operating pedals is supported on the front end of the main frame. The combine driver (worker performing the harvesting work) can board the cabin and perform various operations such as running and steering of the combine.

An entrance / exit is formed on the side surface of the cabin, and a door for opening / closing the entrance / exit is provided. The door is connected to, for example, a pillar extending along the trailing edge of the entrance / exit via a hinge, and the entrance / exit is closed and the entrance / exit is opened outward by swinging around the hinge as a fulcrum. It can be displaced to the state where the mouth is open.

Japanese Unexamined Patent Publication No. 2008-182922

When the inventor of the present application investigated such a structure, it was found that water infiltrated into the cabin from the pillar supporting the door.

An object of the present invention is to provide a water entry prevention structure for a cabin, which can prevent water from entering the cabin from pillars.

In order to achieve the above object, the water entry prevention structure of the cabin according to the present invention is provided with a door provided at the entrance / exit formed on the side surface of the cabin, one wing of the hinge is attached to the door, and the other of the hinges. The wings of the wing are screwed onto a tubular pillar that extends along the front or rear edge of the doorway, so that the door can be opened and closed by the pillar, which is applied to work vehicles having a configuration in which the door can be opened and closed. It is a structure that prevents water from entering the pillar, and in this structure, a drain hole is formed at the lower end of the pillar at the outer end in the vehicle width direction to communicate the inside of the pillar with the outside of the work vehicle.

Since the hinge wings are attached to the tubular pillars with screws (bolts), water may enter the pillars through the screw holes into which the screws are screwed, and the water may flow out from the pillars into the cabin. Therefore, at the lower end of the pillar, a drain hole is formed at the outer end in the vehicle width direction to communicate the inside of the pillar with the outside of the work vehicle. As a result, even if water enters the pillar, the water can be drained to the outside of the work vehicle, so that it is possible to prevent water from entering the cabin from the pillar.

It is preferable that the pillar is provided with a guide for guiding the water that has entered the pillar toward the drain hole. As a result, the water that has entered the pillar can be satisfactorily drained from the drain hole. As a result, it is possible to further prevent water from entering the cabin from the pillars.

An air conditioner for air conditioning in the cabin is arranged on the ceiling of the cabin, and a hose extending from the air conditioner may be inserted in the pillar.

By passing the hose of the air conditioner through the pillar, the hose can be hidden, so that the design is improved. In addition, it is possible to prevent the hose from being damaged.

If the hose is a drain hose that drains the drainage from the air conditioner, even if the drainage leaks from the drain hose, the drainage can be drained from the drain hole, so that the leaked drainage enters the cabin. Can be prevented.

According to the present invention, it is possible to prevent water from entering the cabin from the pillars.

It is a right side view of the combine which concerns on one Embodiment of this invention. It is a plan view of a combine. It is a right side view which shows the vicinity of the rear end part of a door. It is a perspective view which looked at the pillar from the lower side. It is sectional drawing which shows the inside of a pillar. It is a top view which shows the structure of the ceiling part of a cabin. It is sectional drawing which shows the inside of a pillar, and is the figure which cut the pillar in the plane along the front-rear direction and the up-down direction.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<Overall composition of combine>
FIG. 1 is a right side view of the combine 1 according to the embodiment of the present invention. FIG. 2 is a plan view of the combine 1.

Combine 1 is an example of a harvester that cuts culms and threshs from culms while traveling in a field.

As shown in FIG. 1, the combine 1 includes a main frame 2 which is a structure in which a plurality of steel materials are combined. Further, the combine 1 employs a pair of left and right crawlers 3 as a traveling device having an ability to run through rough terrain such as a field. The main frame 2 is supported by a pair of left and right crawlers 3.

The crawler 3 is provided with a drive sprocket 4 as a drive wheel. An axle 5 is connected to the drive sprocket 4 so as not to rotate relative to each other. The power of the engine is transmitted to the axle 5 via the power transmission mechanism. The engine is a diesel engine with an exhaust turbine turbocharger. The power transmission mechanism includes, for example, an HST (Hydro Static Transmission) and a gear mechanism. The engine and power transmission mechanism are supported by the mainframe 2. The power transmission mechanism is arranged on the center portion in the left-right direction (vehicle width direction) at the front end portion of the main frame 2, and the engine is arranged on the rear side of the power transmission mechanism so as to protrude to the right side of the power transmission mechanism. ing.

A cutting device 11 is provided in front of the main frame 2 and at the front of the combine 1. The reaping device 11 reaps the culm planted in the field as the combine 1 advances.

A threshing device 12, a cabin 13, and a grain tank 14 are supported on the main frame 2.

The threshing device 12 is arranged on the left portion of the main frame 2 as shown in FIG. The threshing device 12 transports the stock root side of the culm cut by the reaping device 11 to the rear by a threshing feed chain, and supplies the tip side of the culm to the handling chamber for threshing.

The cabin 13 is arranged closer to the right side on the front end portion of the main frame 2. The cabin 13 provides a space for the driver to board, and in the space, for example, an operation member such as a driver's seat on which the driver sits, an operation lever, and an operation pedal are arranged. As shown in FIG. 1, the bottom plate portion 15 that provides the floor of the cabin 13 is on the right side of the power transmission mechanism and is separated upward from the right front end portion of the main frame 2. The portion of the cabin 13 on the left side of the bottom plate portion 15 protrudes above the power transmission mechanism, and the rear portion protrudes above the engine.

An entrance / exit 16 is formed on the right side surface of the cabin 13, and a door 17 for opening / closing the entrance / exit 16 is provided. The driver of the combine 1 (the worker who performs the harvesting work) can open the door 17 and get on and off the cabin 13 from the entrance 16 and the cabin 13.

The Glen tank 14 is arranged behind the cabin 13 at a distance from the cabin 13. The grain tank 14 provides a space in which paddy (grains) can be stored. The paddy removed from the culm by the threshing device 12 is transported to the grain tank 14 and stored in the grain tank 14. An unloader 18 is connected to the grain tank 14, and the paddy stored in the grain tank 14 can be carried out by the unloader 18 and discharged to the outside of the machine.

<Pillar>
FIG. 3 is a right side view showing the vicinity of the rear end portion of the door 17.

The cabin 13 is provided with a pillar 21 extending along the rear end edge of the entrance 16 on the rear side of the entrance 16. The pillar 21 has a square columnar shape.

The door 17 that opens and closes the entrance 16 is connected to the pillar 21 via a hinge 22. Specifically, one wing 24 of the first hinge 23 is attached to the rear end of the door 17, and one wing 26 of the second hinge 25 is located at a position spaced downward from the first hinge 23. Is attached. The other wing 31 of the first hinge 23 is attached to the right side surface 33 of the pillar 21 by two screws 32. The other wing 34 of the second hinge 25 is attached to the right side 33 of the pillar 21 by two screws 35. Then, the door 17 is displaced between the open and closed states of the entrance 16 by swinging around the core rods of the first hinge 23 and the second hinge 25 as fulcrums.

FIG. 4 is a perspective view of the pillar 21 as viewed from below. FIG. 5 is a cross-sectional view showing the inside of the pillar 21.

A plate-shaped closing plate 41 is provided in the pillar 21 along the lower end edge of the pillar 21. The left front corner portion of the closing plate 41 is notched in a rectangular shape, and the notched portion is closed by an inclined member 42 extending forward and downward along the lower end edge of the pillar 21. The right front corner of the closing plate 41 is cut diagonally so as to be chamfered. As a result, a substantially triangular drainage hole 43 is formed between the closing plate 41 and the right front corner portion of the pillar 21. Since the drain hole 43 is formed, the inside of the pillar 21 and the outside of the combine 1 communicate with each other through the drain hole 43.

Further, the front side surface 44 of the pillar 21 includes a first portion 45 extending to the left from the front end edge of the right side surface 33 and bending forward and extending, and a second portion 47 extending to the right from the front end edge of the left side surface 46. ing. A gap is formed between the bent portion 48 and the second portion 47 of the first portion 45, and a square columnar guide 49 made of a flexible material is fitted in the gap. The guide 49 bends and extends to the left at the position above the closing plate 41.

FIG. 6 is a plan view showing the configuration of the ceiling portion 51 of the cabin 13. FIG. 7 is a cross-sectional view showing the inside of the pillar 21, which is a view obtained by cutting the pillar 21 in a plane along the front-rear direction and the vertical direction.

An air conditioner 52 for air conditioning in the cabin 13 is arranged on the ceiling portion 51 of the cabin 13. Further, a plurality of hoses 53, 54 extending from the air conditioner 52 are arranged in the ceiling portion 51. Examples of the plurality of hoses 53 and 54 include a drain hose that discharges drainage from the air conditioner 52, a heater hose in which engine cooling water circulates, and an A / C hose in which a refrigerant circulates. The hoses 53 and 54 extend from the right side of the air conditioner 52 toward the front side at the right end of the ceiling portion 51, and pass through the pillar 21 as shown in FIG. 7.

<Action effect>
Since the wing 31 of the first hinge 23 is attached to the square cylindrical pillar 21 with the screw 32 and the wing 34 of the second hinge 25 is attached with the screw 35, the screws 32 and 35 are screwed through the screw holes. Water may enter the pillar 21 and the water may flow out from the pillar 21 into the cabin 13. Therefore, at the lower end of the pillar 21, a drain hole 43 is formed in the right front corner portion to communicate the inside of the pillar 21 with the outside of the combine 1. As a result, even if water enters the pillar 21, the water can be drained to the outside of the combine 1, so that it is possible to prevent water from entering the cabin 13 from the pillar 21.

A guide 49 is provided in the pillar 21. The guide 49 extends along the front side surface 44 to a position above the closing plate 41. Therefore, the guide 49 has a function of guiding the water that has entered the pillar 21 toward the drain hole 43. As a result, the water that has entered the pillar 21 can be satisfactorily drained from the drain hole 43. As a result, it is possible to further prevent water from entering the cabin 13 from the pillar 21.

An air conditioner 52 for air conditioning in the cabin 13 is arranged on the ceiling portion 51 of the cabin 13. The hoses 53 and 54 extending from the air conditioner 52 are passed through the pillar 21. As a result, the hoses 53 and 54 can be hidden by the pillar 21, so that the design is improved. Further, it is possible to prevent the hoses 53 and 54 from being damaged.

If at least one of the hoses 53 and 54 is a drain hose that drains the drainage from the air conditioner 52, even if the drainage leaks from the drain hose, the drainage can be drained from the drain hole 43. It is possible to prevent the drainage from entering the cabin 13.

<Modification example>
Although the embodiment of the present invention has been described above, the present invention can also be implemented in other embodiments.

For example, in the above-described embodiment, the combine 1 provided with the harvesting device 11 and the threshing device 12 as working devices is taken as an example of the working vehicle, but the present invention harvests vegetables such as carrots, radishes, edible beans, and cabbage. A harvester equipped with a harvesting and transporting device as a working device, a rice planting machine equipped with a seedling planting device as a working device, a direct sowing machine equipped with a sowing device as a working device, a tractor equipped with a plow as a working device, and a bucket as a working device. It can be applied to various work vehicles such as a construction work vehicle to be equipped.

In addition, various design changes can be made to the above-mentioned configuration within the scope of the matters described in the claims.

1: Combine (work vehicle)
13: Cabin 16: Entrance / exit 17: Door 21: Pillar 22: Hinge 23: First hinge 24, 26, 31, 34: Wings 25: Second hinge 32, 35: Screw 43: Drain hole 49: Guide 51: Ceiling 52: Air conditioner 53, 54: Hose

Claims (4)

A door is provided at the doorway formed on the side of the cabin, one wing of the hinge is attached to the door, and the other wing of the hinge is screwed along the front or rear edge of the doorway. A structure that is applied to a work vehicle having a structure in which the door is openably and closably supported by the pillar by being attached to an extending tubular pillar to prevent water from entering the cabin.
A water entry prevention structure in which a drain hole is formed at the lower end of the pillar at the outer end in the vehicle width direction to communicate the inside of the pillar with the outside of the work vehicle. The water entry prevention structure according to claim 1, wherein a guide is provided in the pillar to guide the water that has entered the pillar toward the drain hole. An air conditioner for air conditioning in the cabin is arranged on the ceiling of the cabin.
The water entry prevention structure according to claim 1 or 2, wherein a hose extending from the air conditioner is inserted into the pillar. The water entry prevention structure according to claim 3, wherein the hose is a drain hose that discharges drainage from the air conditioner.

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