JP2000245235A - Cab structure of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cab capable of widely opening surroundings of a prime mover covered with a seat-supporting stand while preventing a link mechanism such as a control lever installed in a control tower from becoming complicated. SOLUTION: A control tower 13 is fixed on a chassis frame 8. In a mutually coupling state of a seat-supporting stand 12 with a cab floor 14 they are supported by the frame 8 in a rotatable state around the center P of a shaft and a shakable changeover can be carried out as one body between an operating state where the stand 12 is coupled with the frame 8 to cover an engine 2 and a maintenance one where the stand 12 is separated from the frame 8 to open surroundings of the engine 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat support supported on a body frame of a traveling body, a driver seat connected to an upper portion of the seat support, a control tower located in front of the seat support, The present invention relates to an operating unit structure of a combine having an operating unit floor located between the control tower and the seat support.

[0002]

2. Description of the Related Art Conventionally, in the above combine, for example, as shown in Japanese Utility Model Application Laid-Open No. 62-112612,
In some cases, the seat support stand serves as an engine hood, and the lower end of the seat support stand is rotatably connected to the body frame around a longitudinal axis of the body. That is, by swinging the seat support around the axis, the seat support is connected to the fuselage frame to cover the engine, and the seat support is separated laterally outward from the fuselage frame to open the engine. There was something to switch.

[0003]

Conventionally, when performing a work such as checking or repairing a driving part, even if the seat support is switched to an open state, a very large working space around the engine cannot be obtained. For example, the work is difficult to perform because the seat support is located near the engine or on the lateral outside of the fuselage and is likely to hinder the work. SUMMARY OF THE INVENTION An object of the present invention is to provide an operating unit structure of a combine which can greatly open the fuselage side without adding a special modification to a structure such as an electric system related to a control tower.

[0004]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] A seat support supported on the body frame of the traveling body, a driving seat connected to an upper portion of the seat support, a control tower located in front of the seat support, the control tower and the control tower In a driving unit structure of a combine including a driving unit floor located between a seat support, the control tower is fixed to an airframe, and the seat support and the driving unit floor are connected to each other. It is swingably supported by the fuselage frame, and is configured to be able to swing at a time between a use state in which the seat support is connected to the fuselage frame and a maintenance state in which the seat support is separated from the fuselage frame. .

[Operation] When the seat support is switched to the maintenance state, the seat support and the operating section floor are connected and swing. Therefore, the seat support is moved forward from the seat support such as the front end side of the operating section floor. It swings around the fulcrum, which is relatively far away from the side, and largely separates from the fuselage frame, and the operating unit floor also separates from the fuselage frame, and the traveling body side portion normally covered by the seat support is largely open At the same time, it can be opened to open the vicinity.

When the control tower also swings together with the seat support and the operating section floor so that the seat support is largely separated from the fuselage frame, control valves and controls for operating levers and instruments supported by the control tower are provided. An electric or mechanical link mechanism that links to the linking target such as a part or sensor, an electric cord or link mechanism bypasses the swing fulcrum of the control tower to the outside, or around the same axis as the swing fulcrum. A wiring section and a rotation connection section are required to allow the control tower to swing such as turning. On the other hand, the control tower is fixed to the fuselage frame, and the seat support base can be largely separated from the fuselage frame without having to provide a special mechanism such as the wiring section and the rotary connection section as described above.

[Effects] Therefore, when performing a work such as checking and repairing a driving portion of the seat support base as an engine bonnet, or a transmission device having a lateral side covered with the seat support base, When inspecting or repairing the mowing part, normally open the aircraft side part covered with the seat support and open the vicinity as well, and make sure that the seat support is It is far away from the frame and hardly becomes an obstacle to work, so you can work easily and efficiently.

In addition, it is not necessary to equip the linking mechanism for linking the operation levers and instruments provided in the control tower with the linking target portion with the above-mentioned special mechanism such as the wiring portion and the rotary connection portion, so that the structure and the structure can be improved. This can be advantageous in cost.

The construction, operation and effect of the invention according to claim 2 are as follows.

In the structure according to the first aspect of the present invention, the seat frame and the operating section floor are located at a front end of the operating section floor and are swingable about a horizontal axis of the body. It is supported by.

[Operation] When the seat support is switched to the maintenance state, the seat support and the operating unit floor swing around the horizontal axis of the fuselage to separate upward from the fuselage frame, and inspection and repair are performed from the lateral outer side of the fuselage. In such a case, the seat support base can be opened so that the lateral side of the body is also opened so that the seat support and the like are unlikely to become obstacles.

[Effect] The prime mover and the transmission are opened such that there are no obstacles on the lateral outside of the machine body, and work such as inspection and repair can be easily performed from the lateral side of the machine body.

The structure, operation and effect of the invention according to claim 3 are as follows.

[Structure] In the structure of the invention according to claim 1 or 2, a side cover is provided between the seat support and the control tower, and the side cover, the seat support and the driving floor are provided. Are swing-switched at once.

[Operation] It is possible to work while shielding the dust and driving noise and heat radiation generated in the driving part and the mowing part by the side cover so as not to easily enter the living space. When the seat support is switched to the maintenance state, the side cover also swings together with the seat support, and a portion normally covered by the side cover, such as the transport device of the reaper, is opened.

[Effect] It is possible to prevent dust and driving noise from entering the living space with the side cover, so that the steering can be performed comfortably. It can be easily opened by opening the device part.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 and FIG.
Is provided on the side of the driving unit 10 of the traveling body, which has a driving unit provided with the engine 2 located below the driver's seat 11.
1. A cutting unit 20 provided with a dust-proof cover 22 is movably mounted on the cutting unit 20. The threshing unit 3 is located on the rear side of the cutting unit 20, and the resin grain is located on the rear side of the operating unit 10. A tank 4 is provided on the traveling body, and a threshing device 3 is provided.
A waste straw treatment device 5 is provided on the rear side, and a grain discharge device 7 is connected to a rear portion of a bottom screw case 6 to which the bottom side of the grain tank 4 is connected, thereby forming a combine.

That is, the cutting section 20 raises and processes the planted grain culm of rice or the like by the raising device 21 and also cuts by the clipper-type cutting device 23, and positions the cut grain culm below the dustproof cover 22. It is conveyed by a vertical conveying device (not shown) and supplied to the start end of the threshing feed chain 3a of the threshing device 3. At this time, scattering of dust is prevented by the dustproof cover 22.

The threshing device 3 includes a threshing feed chain 3a.
The tip side is supplied to a threshing unit while holding and transporting the root side of the cut culm by threshing, and threshing is performed. Threshing grains are supplied to the grain tank 4 and threshing waste straw is supplied to the waste straw processing device 5. I do. The waste straw processing apparatus 5 is switched to the shredding processing state, shreds the threshing waste straw and discharges it to the field, and is switched to the long straw processing state to lengthen the threshing waste straw. It is released to the field in the straw state. The grain discharge device 7 includes a vertical screw conveyor 7a connected to a bottom screw 6a located inside the bottom screw case 6, and a horizontal screw conveyor 7b connected to an upper end side of the vertical screw conveyor 7a. Threshing grains from the screw 6a are pumped up by the vertical screw conveyor 7a, supplied to the horizontal screw conveyor 7b, and discharged from the discharge port 7c of the horizontal screw conveyor 7b.

As shown in FIGS. 3 and 5, the driving section 10 includes a seat support 12, and the driving seat 11, which is connected to the upper surface side of the top plate 12a of the seat support 12,
A control tower 13 located in front of the seat support 12, a driving section floor 14 located between the seat support 12 and the control tower 13, and a drive tower 13 located between the left lateral ends of the seat support 12 and the control tower 13. A side cover 15 that covers a lower side of the living space so that dust, driving noise, and hot air generated in the mowing unit 20 and the driving unit do not enter the living space of the driving unit 10, and an upper end side of the side cover 15. Lever guide 1 which is connected to the top plate 12a of the seat support 12
6, an operation panel 17 located between the front end of the operation lever guide 16 and the left lateral end of the control tower 13;
A living space for steering operation comprising a lower living space S surrounded by a control tower 13 and a side cover 15 and an upper living space provided with a driver's seat 11, a seat support 12 and a right side of the control tower 13. Each of the entrances located between the side edges is provided.

The control tower 13 is provided with an operation lever 30 for raising and lowering the mowing unit 20 and for steering the traveling machine body, and a gripping rod 31 for supporting the operator to stabilize his body. The operating lever guide 16 has guide grooves for guiding the respective operations of the main transmission lever 32 for operating the main transmission for traveling, the auxiliary transmission lever 33 for operating the auxiliary transmission for traveling, and the threshing lever 34 for switching the threshing clutch. Is provided. The operation panel 17 includes a waste straw processing device 5.
A clogging warning lamp that lights up and warns when a straw is clogged in the waste straw cutter, a full lamp that lights up and notifies when the grain tank 4 is full, and a water temperature that lights up and warns when the engine coolant temperature rises abnormally. It includes a lamp, an oil lamp that lights up when the engine oil level is low to give an alarm, a charge lamp that lights up when a battery charging failure occurs and an alarm, and an engine tachometer indicating the load state of the engine 2 and a load display section.

A front end portion 14b of the floor surface 14a of the operating section floor 14 which is located below the control tower 13 is formed as a front-inclined inclined surface which is located at a higher level toward the front of the fuselage.

The seat support base 12 is connected to the rear end side of an intake tower 35 having an upward intake port 35a and a forward intake port 35b for sucking the combustion air of the engine 2 into the prime mover. A top plate portion 12a configured to mount the driver's seat 11 on the upper surface side, and a front side wall configured such that an upper end portion is connected to a front end portion of the top plate portion 12a and a lower end side is connected to the driving portion floor 14. So that the air intake tower 35 is connected to the rear end side and covers the right side of the driver's seat 11.
a and a lateral outer wall portion 12c configured to cover a right lateral side of a space surrounded by the front wall portion 12b. The lateral outer wall portion 12c is provided with a through hole H that forms a grip portion G used when getting on and off the driving section.

As shown in FIG. 6, the top plate 12a
It is formed so as to cover the upper part of the driving part and to have a hollow part K1. The front side wall portion 12b is formed so as to cover the front side of the body of the prime mover and to have the prime mover with an intake port A1 through which the combustion air of the engine 2 is sucked. The lateral outer wall 12c is formed so as to cover the lateral outer side of the body of the driving unit.

That is, the seat support 12 becomes an engine bonnet, and the driving sound and heat radiation of the engine 2 generated in the prime mover portion are hardly transmitted to the living space by the sound insulation and heat insulation effect of the hollow structure of the top plate 12a. The upper portion of the engine 2, the front side of the fuselage, and the lateral outer side of the fuselage are covered while allowing the engine combustion air to be sucked from the front wall portion 12b.

The lower end of the control tower 13 is immovably connected to the end of an attachment portion 8a extending from the front end of the body frame 8 of the traveling body, so that the control tower 13 is fixed to the body frame 8 in a fixed state. It is to be done. The lower end side of the seat support 12 and the rear end side of the operating section floor 14 are connected, and the operating section floor 1 is connected.
4 are connected to the mounting portion 8a so as to be rotatable around the axis P in the lateral direction of the machine body, respectively. It is. The side cover 15 is connected to the top plate 12 a of the seat support 12 and the lateral side of the control tower 13, and is also connected to the operation unit floor 14. This allows
The seat support 12, the driving section floor 14, and the side cover 15 form one structure, and the body is configured to swing around the axis P, which is located at the front end side of the structure and is lateral to the body. The seat support 12, the driving section floor 14, and the side cover 15 supported by the frame 8 can be swung with respect to the fuselage frame 8 at a stroke. As shown in FIG. 3, a use state in which the seat support 12 is connected to the body frame 8 to cover the driving unit, and a maintenance state in which the seat support 12 rises and separates from the body frame 8 to open the driving unit as shown in FIG. Is switched to.

That is, at normal times, the seat support 12 is set in the above-mentioned use state to enable the use of the driver's seat 11 and to be used as an engine bonnet. Then, when inspecting or repairing a driving part or a device part covered by the side cover 15 such as the vertical transport device of the cutting unit 20, the seat support 12 is switched to the maintenance state, the driving unit is opened, and the cutting unit is opened. The side of the device part 20 is opened. At this time, the main transmission lever 32, the auxiliary transmission lever 33, and the threshing lever 34 come out of the guide grooves of the operation lever guide 16 that swings up and down.

Each of the top plate portion 12a, the front side wall portion 12b, the lateral outer side wall portion 12c, the driving section floor 14, the control tower 13, the side cover 15, the operation lever guide 16, and the intake tower 35 of the seat support base 12 Made of synthetic resin.

As shown in FIGS. 7 and 8, the side cover 15 includes a rear side cover portion 15 d located below the operation lever guide 16 and the rear side cover portion 1.
It is formed by a front side cover portion 15e located between 5d and the control tower 13. The thickness of the rear side cover portion 15d in the inside and outside directions of the living space S is increased so that the operation lever guide 16 is stably connected to the upper end side of the rear side cover portion 15d. The thickness of the front side cover portion 15e in the inside and outside directions of the living space S is smaller than the thickness of the rear side cover portion 15d.

As shown in FIG.
The wiring unit 37 includes a wiring space through which an electric wire 36 that connects the lamps and instruments provided in 7 to a control unit and a sensor unit provided in the traveling body and a lid 37a that opens and closes the wiring space. It is provided on the inner surface side of the side cover 15. As shown in FIG. 6 and FIG.
The panel-side electric wire portion 36a connected to the operation panel side of the connector 38 and the electric wire 36 provided on the vehicle, and the fuselage-side electric wire portion 36b of the body-side electric wire portion 36b connected to the traveling fuselage side
Is configured to slidably support the side cover 15.
Of the pair of couplers 38a, 38b constituting the connector 38 and the drawer string 39 connected to the coupler 38b provided on the body-side electric wire portion 36b of the pair of couplers 38a, 38b. When the seat support base 12 is switched between the maintenance state and the use state, the panel-side electric wire portion 36a and the fuselage-side electric wire portion 36b of the electric wire 36 are separated or connected as shown in FIG. It is.

That is, as shown in FIG. 9 (b), when the seat support 12 is switched to the maintenance state, the electric wires 36 are raised so that the seat support 12, the operating section floor 14, and the side cover 15 can be raised. Is separated into a panel-side electric wire portion 36a and a fuselage-side electric wire portion 36b by a coupler 38. As the side cover 15 moves up together with the seat support 12 and the like, the electric wire holder 40 is
5 and the side cover 15 enters the maintenance state, the body side electric wire portion 36b
It will be in the state of being drawn to 0. After that, as shown in FIG. 9C, even if the seat support 12, the driving section floor 14, and the side cover 15 are returned to the above-mentioned use state, the fuselage-side electric wire portion 3 remains
6b may be bent on the traveling body side with respect to the electric wire holder 40 and remain in the electric wire holder 40, and the couplers 38a and 38b may not be able to be connected. At this time, as shown in FIG. 9 (D), a pulling operation is performed by holding the drawer string 39, and as shown in FIG.
6b is pulled out from the wire holder 40 and the two couplers 38 are pulled out.
a, 38b, and the panel-side wire portion 36 of the wire 36
a and the fuselage-side electric wire portion 36b are returned to a state where they are connected by the coupler 38.

[Another Embodiment] Each of the top plate portion 12a, the front side wall portion 12b, the lateral outer side wall portion 12c, the driving section floor 14, the side cover 15, the operation lever guide 16, and the intake tower 35 of the seat support base 12 is provided. In making and implementing with synthetic resin, in addition to individually creating and connecting them, some of them are created at once by blow molding method, and after creating others separately from this integrated part, Or all of them may be created all at once by a blow molding method.

The seat support 12, the driving floor 14, the control tower 1
3, each of the side cover 15 and the operation lever guide 16 may be made of sheet metal in addition to being made of synthetic resin.

[Brief description of the drawings]

FIG. 1 is a side view of the entire combine.

FIG. 2 is a plan view of the entire combine.

FIG. 3 is a perspective view of a driving unit.

FIG. 4 is a side view showing an open state of the seat support.

FIG. 5 is a plan view of the driving unit.

FIG. 6 is a sectional view of a seat support and an intake tower.

FIG. 7 is a sectional view of a seat support and a side cover.

FIG. 8 is a front view of an operation unit.

FIG. 9 is an explanatory diagram showing connection procedures of electric wires.

[Explanation of symbols]

 8 Airframe 11 Driver Seat 12 Seat Support 13 Control Tower 14 Operating Floor 15 Side Cover P Shaft Core

Claims (3)

[Claims] 1. A seat support supported by a body frame of a traveling body, a driver seat connected to an upper portion of the seat support, a control tower located in front of the seat support, the control tower and the seat. An operating part structure of a combine having an operating part floor located between the support base and the operating tower, wherein the control tower is fixed to an airframe, and the seat support base and the operating part floor are connected to each other. It is configured to be swingably supported by the body frame and to be able to swing at a stroke between the use state where the seat support is connected to the body frame and the maintenance state where the seat support is separated from the body frame. The driving structure of a certain combine. 2. The vehicle body frame according to claim 1, wherein the seat support base and the driving section floor are located at a front end of the driving section floor and are supported by a body frame so as to be swingable about a lateral axis of the body. The driving unit structure of the combine. 3. A side cover is provided between the seat support and the control tower, and the side cover, the seat support and the operating section floor are swingably switched at one time. The operating part structure of a combine according to claim 1 or 2, wherein: