JPH08242663A - Maneuvering apparatus of combine harvester - Google Patents

Abstract

PURPOSE: To easily attach a single operation lever and a side clutch lever having different steering operation systems to a maneuvering part with a simple structure without increasing the production models of the machine by using an operation column, etc., in common and to perform smooth reaping operation by clearing the front view. CONSTITUTION: A maneuvering column 6 of a maneuvering part placed oppositely to a reaping part and a thresher is protruded at a position deviated to the outside of the machine body to enable the installation of a single operation lever 7 on a maneuvering column 6. The machine body is steered by tilting the operation lever to the right or left. In the case of using a side clutch lever 70 to steer the machine by the forward and backward pulling operation in place of the operation lever 7, the side clutch lever 70 is placed in a maneuvering space formed in the machine body in place of the operation lever and a handle is attached to the maneuvering column 6 at a position for attaching the operation lever.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine control device, and more particularly to an arrangement of steering levers for steering a machine body.

[0002]

2. Description of the Related Art Generally, as a steering system for combine harvesters, a single steering lever is provided on an operation column standing upright in the front part of a control unit, and the steering lever is tilted to the left or right to operate the machine body. There are a steering type and a type in which a pair of left and right side clutch levers are provided in the operation column and one of the side clutch levers is pulled in the front-rear direction to steer the machine body. It has been known.

[0003]

In the case of manufacturing a combine for steering the airframe with the single steering lever and a combine with different specifications for steering the airframe by the pair of left and right side clutch levers. In the past, since the control part was manufactured separately according to the specifications, the manufacturing cost of the control part was high, and there was a problem that it was not possible to provide an inexpensive combine as a whole. On the other hand, in order to eliminate such problems, the operation column for attaching the steering lever is shared regardless of the specifications,
It is conceivable that a single steering lever or a pair of left and right side clutch levers can be attached to the operation column instead of being attached, thereby reducing the die cost when manufacturing the operation column. However, sharing the operation column in this way causes a new problem because the steering system is different.

That is, in a steering system using a single steering lever, since the steering lever is operated mainly with the right hand in the left and right directions, an operation column for mounting the steering lever is provided. It is preferable in terms of operation that the position of the left side clutch is biased to the right side of the cockpit, and in the case where a steering system using a pair of left and right side clutch levers is adopted, Since each is operated with the right hand or the left hand in the front-rear direction, it is preferable that the position of the operation column where this is installed is in the center of the cockpit. Considering the operability of both, the operation column where the lever is installed must be installed. The positions are incompatible. In view of this point, the operation column may be widened in the left-right direction in advance, and each of the levers may be attached to the wide operation column so as to be biased toward the outside of the body or located in the center. If this is possible, the space of the control section will be obstructed by the wide operation column, and the comfortability will deteriorate. In addition, the operation column unnecessarily increases in size, which causes a problem that the control device cannot be manufactured at low cost.

According to the present invention, even when a single steering lever or a combine adopting a steering system having different specifications by a pair of left and right side clutch levers is manufactured, an operating column to which those levers are attached is provided. An object of the present invention is to provide a combine control device which can be manufactured in common and can be manufactured at a low cost, and which does not impair the steering operability and does not deteriorate the habitability of the control part. .

[0006]

In order to solve the above-mentioned problems, the present invention provides a mowing section and a threshing section in order from the front on one side of a traveling machine body having a traveling device, and a control section on the front side of the other side. In a combine provided with a steering column, an operation column is erected on the front part of the control section so as to be biased toward the outside of the machine body, and the operation column has a single steering system that steers the machine body by tilting in the left-right direction. When a pair of left and right side clutch levers for steering the machine body by pulling in the front-rear direction are provided instead of the lever and the single steering lever, they are formed inside the machine body of the operation column. It is characterized in that the pair of left and right side clutch levers are arranged in the space.

When a pair of left and right side clutch levers are provided in the control section, the handle of the operator is attached to the part of the operation column where a single steering lever is attached. Even when manufacturing a combine that employs a steering system with a pair of side clutch levers, the part of the operation column where the single steering lever is mounted is effectively used as the part where the operator's handle is attached. The purpose is to make it possible to reasonably manufacture the control part of the combine.

[0008]

In the case of manufacturing a combine adopting a steering system with a single steering lever, the above-mentioned single steering lever is mounted on the operation column which is erected near the outside of the body of the control section. It is attached so that the body can be steered by tilting the single steering lever in the left-right direction.
Also, when manufacturing a combine adopting a steering system with a pair of left and right side clutch levers, a pair of left and right side clutch levers are arranged and mounted in a space formed inside the body of the operation column described above. The body can be steered by pulling the side clutch lever in the front-rear direction.

In this case, in the case where the steering system using a single steering lever is adopted, the steering lever is located near the outside of the machine body with respect to the cockpit, and one hand is used. With, the steering operation of the airframe can be favorably performed while the steering lever is gripped. Also, in the case of employing a steering system with a pair of left and right side clutch levers, the left and right side clutch levers are located in the approximate center with respect to the cockpit, so that the left and right side clutch levers can be used with both hands. It is possible to satisfactorily perform the steering operation of the machine body by grasping the. Further, in a combine adopting a steering system with a pair of left and right side clutch levers, a handle of an operator is attached to a portion of the operation column where a single steering lever is attached. Therefore, the operator can hold the handle and support his / her body at any time during mowing work or traveling on the road, and can always operate the aircraft in a stable state.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a traveling machine body of a combine A having a crawler type traveling device 2. The traveling machine body 1 is provided with a reaping section 3 and a threshing section 4 from the left front side thereof, and is operated to the right front side. The part 5 is provided. Also, cockpit 5
An engine 5b is installed below a, and a hopper 4a for accommodating threshered grains is arranged behind it.

An operation column 6 is erected in front of the cockpit 5a toward the right outside of the machine body, and a space portion 6a is provided on the left side of the operation column 6 in which a side clutch lever 70 described later can be arranged. Set up. In addition, a side operation panel 8 for providing a traveling speed change lever 8a and the like is arranged in a region close to the threshing unit 4. An upper panel 60 is provided on the operation column 6 to cover it, and a single steering lever 7 for steering the aircraft by tilting in the left-right direction is attached to the upper panel 60. 71 is provided so as to project. Further, on the upper panel 60, an operation lever 7a of a direction indicator, a key switch 7b, a horn switch 7c, etc., electrical components for operation, a display lamp, a display seal 7d, etc. are arranged to form an assembly. .

As shown in FIGS. 2 to 5, the operation column 6 is shown.
Is a pillar 6 whose upper part is connected by a connecting frame 62 having a U-shape in plan view.
The lower ends of 3, 63 are fixed to the machine body (machine frame) 1 below the control section 5, and the steering lever 7 can be connected to a hanging mounting plate 62a formed in the front part of the connecting frame 62. The hydraulic valve unit 72 supported by is detachably attached. The outer and front surfaces of the columns 63, 63 are covered with the front cover 9, and the rear side is covered with the rear cover 9b.

One of the steering valves constituting the hydraulic valve unit 72 supplies pressure oil from a hydraulic pump (not shown) to the left and right steering cylinders via a hydraulic pipe 72a,
Alternatively, the pressure oil from the left and right steering cylinders is discharged to the tank. When the steering valve is switched by tilting the steering lever 7 to the left or right, the steering valve supplies pressure oil to one of the left and right steering cylinders, and the steering cylinder extends to form a traveling mission case. The left and right side clutches provided and the side brakes on that side are respectively disengaged and the braking operation is performed. The steering lever 7 also serves as a mowing section elevating lever that moves the mowing section 3 up and down by tilting operation in the front-rear direction. In this case, when the steering lever 7 is tilted in the front-rear direction, the other lifting valve that constitutes the hydraulic valve unit 72 is switched, and the lifting cylinder that communicates therewith expands and contracts, and the mowing section 3 is provided at the rear portion (not shown). Move up and down around the fulcrum.

The front cover 9 is provided on the operation column 6
Pillar 63 and the side operation panel 8 extending from the machine body 1
Between the support frames 81 positioned below the control frame 5, the front cover 9 is detachably attached so as to cover the front surface of the control section 5. The front cover 9 has an upper edge portion in the space portion 6a in the body of the operation column 6, A portion located on a straight line connecting the operator's viewpoint and the front end of the mowing unit 3 on the side of the already-cutted ground (divider 3a at the right end), and a notch is formed in the recessed notch window 9a, and the notch window 9a is transparent. By attaching a transparent cover body 90,
A field of view of the front end of the reaping section 3 that is directly on the cut ground is ensured through the notch window 9a, and dust and the like are prevented from entering the control section 5 side.

Reference numeral 65 denotes a reinforcing frame which connects the support column 63 and the supporting frame 81 at the rear lower portion of the cutout window 9a of the front cover 9, and the reinforcing frame 65 reinforces the middle portion of the operation column 6 to the supporting frame 81. The front cover 9 can be attached while being supported. An engine throttle lever 73 is attached to the left side surface of the operation column 6, and a rearview mirror 74 is attached to the right side surface. 8b
Is a running clutch and a brake brake petal installed on the floor below the space 6a.

A downwardly U-shaped handle 10 is provided above the operation column 6 and above the space 6a so that the handle 10 can be gripped during mowing and when getting on and off. The base of the handle 10 is formed at the upper end of the column 63. The mounting portion 66 and the reinforcing frame 65 are mounted near the support frame 81. Then, the handle 10 straddles the above-mentioned space 6a and is attached in an upright position such that the upper part thereof is behind the steering lever 7 so as not to obstruct the operator's viewpoint and the front view of the reaping unit 3 and to operate the handle. The upper side of the column 6 is connected to the support frame 81 to increase the rigidity of the operation column 6.

Next, in FIG. 3, FIG. 4 (B), FIG. 6, and FIG. 7, in place of the steering lever 7, the side clutch lever 70 having a different steering operation system is mounted on the operation column 6. Aspects will be described. In this case, the operation column 6 is provided with the steering lever 7 and the hydraulic valve unit 72.
As shown in FIG. 3, the machine frame or cover members such as the operation column 6 and the front cover 9 are shared as they are without changing the related equipment and the handle 10, and the operation column 6 is located inside the machine body. The side clutch lever 70 is installed in the space 6a to be formed, and another handle 1 is provided.
1 is attached to the operation column 6.

That is, the support column with the one end of the support rod 75 supporting the pair of left and right side clutch levers 70, 70 inserted into the operation column 6 in the state where the lever boot 71 and the hydraulic valve unit 72 are not present. 63 and the other end of the support rod 75 to the support frame 81 by the mounting screws M. The handle 11 formed on the operation column 6 on the side of the side clutch lever 70 is formed in an inverted L shape. One end of the handle 11 is fastened to the mounting portion 66 at the upper end of the support column 63, and the supporting leg 11a vertically provided on the other side is provided. The lever boot 71 is inserted into the removed mounting hole 60a, and its end is detachably fixed to a mounting piece 75a formed on the support rod 75 by a mounting screw M. When mounting the handle 11, a boot cover 77 formed of rubber or plastic material shown in FIG. 7 is detachably mounted and closed in the mounting hole 60a. The boot cover 77 has the support legs 11
A slit 79 is formed in the insertion hole 78 through which a is inserted, and the insertion hole 78 is expanded by this slit 79 so that the supporting leg 11a can be easily inserted into the insertion hole 78.

The support rod 75 is divided into left and right parts, and support pieces 75a, 75a are fixed to opposite end portions thereof, and
The side clutch levers 70, 70 consisting of a pair of left and right levers are provided between the support pieces 75a, 75a, and the upper and lower sides thereof are connected by connecting shafts 75b, 75c in a grid pattern, and the upper connecting shaft 75b is connected to Side clutch lever 7
The bases of 0 and 70 are rotatably supported. The base of the side clutch lever 70 is connected to a link mechanism 76. The link mechanism 76 is mechanically linked to the left and right side clutches and side brakes provided in the traveling mission case, and the left and right side clutch levers 70, 70
When either one of the above is pulled toward the cockpit 5a side, the link mechanism 76 disengages the side clutch on that side, and the side brake is subsequently actuated by the subsequent pulling operation of the side clutch lever 70, and the airframe makes a pivotal turn.

According to the present invention having the above-described structure, when the steering section 5 is assembled and manufactured, and when the combine is a steering operation specification by the single steering lever 7, the operation is supported by the hydraulic valve unit 72. Orient the lever 7 to the top panel 60
So as to project from the mounting hole 60a of
The hydraulic valve unit 72 can be easily assembled by mounting and fixing it on the mounting plate 62a.

Since the steering lever 7 thus mounted on the operation column 6 is located on the front right hand side of the control section 5, the operator can operate the steering lever 5 with his right hand while sitting on the cockpit 5a. 7 can be grasped and the steering operation can be performed accurately.
Further, the space portion 6 formed inside the body of the operation column 6
The divider and the like in front of a can be visually recognized well, and the maneuvering and reaping work of the machine can be accurately performed. Further, in this case, since the handle 10 is attached to the outer side of the operation column 6 and the support frame 81 side across the space 6a, the operator holds the steering lever 7 with the right hand while holding the handle 1 with the left hand.
It is possible to satisfactorily carry out the steering operation of the machine body in a stable posture with 0 being gripped, and the handle 10 reinforces and supports the upper side of the operation column 6 which is erected on the machine base 1a to prevent the operation column 6 from shaking. There is an advantage of suppressing vibration and the like.

When the steering operation specification combine by the pair of left and right side clutch levers 70, 70 is used, both ends of the support rod 75 are provided without the steering lever 7 and the hydraulic valve unit 72. Is fixedly supported on the support column 81 and the support frame 81 on the outer side of the operation column 6, and the side clutch levers 70, 70 attached to the support rod 75 are connected to the link mechanism 76. Can be easily mounted in the space 6a formed inside the body of the operation column 6, and the upper portion of the operation column 6 can be reinforced and supported by the support frame 81 via the support rod 75 instead of the handle 10. be able to.

The handle 11 is mounted in the mounting portion 60 and the mounting hole 60a in which the steering lever 7 of the operating column 6 is mounted.
By inserting and supporting the support leg 11a, the handle 11
Can be stably erected and supported above the operation column 6 with a simple structure. Therefore, the operator does not have to twist the body while the side clutch levers 70, 70 installed at the front center of the cockpit 5a are sitting on the cockpit 5a.
The side clutch levers 70, 70 can be grasped and operated by both hands or one hand, and the handle 11 can be properly grasped at any time, so that the driving operation can be favorably performed.

As described above, according to the present invention, the single steering lever 7 and the pair of left and right side clutch levers 70, 70 are provided.
The steering-type combine combiner is shared without changing the machine frame such as the operation column 6 and the front cover 9 or the mounting member such as the cover, and is manufactured at a low cost with a simple structure. It can be provided at a proper portion where steering operation can be easily performed without impairing the forward field of view. In this embodiment, when the steering device 2a is switched, the hydraulic lever 72 is switched by the steering lever 7, but the present invention is not limited to this, and the steering lever 7 is provided with a switching switch. A steering system may be used in which the side clutch is electrically switched.

[0025]

Since the present invention is configured as described above, it has the following effects. According to claim 1, a single steering lever can be attached to an operation column erected near the outside of the body of the control section, and a side clutch lever is attached to a space inside the body of the operation column. As a result, it is possible to easily attach steering levers with different steering operation methods or side clutch levers to the operating column, and to double the operating column without increasing the size of the operating column. The entire part can be manufactured inexpensively. Also, in the case where the steering system with a single steering lever is adopted, the steering lever is located closer to the outside of the aircraft than the cockpit, and the steering lever is gripped with one hand. In addition, the steering system of the fuselage can be satisfactorily operated, and in the case of a steering system that uses a pair of left and right side clutch levers, the left and right side clutch levers are located at the center of the cockpit. Since the vehicle is positioned, the left and right side clutch levers can be grasped by both hands and the steering operation of the machine body can be performed well.

According to the second aspect of the present invention, in the combine adopting the steering system with the pair of left and right side clutch levers, the handle of the operator is attached to the portion of the operation column where the single steering lever is attached. Therefore, the operator can hold the handle and support his / her body, and can always operate the aircraft favorably in a stable state.

[Brief description of drawings]

FIG. 1 is a perspective view of a combine.

FIG. 2 is a partially cutaway front view showing a control section provided with a single steering lever.

FIG. 3 is a partially cutaway front view showing a control unit provided with a side clutch lever.

FIG. 4A is a side view showing a partially broken operation column having a single steering lever. FIG. 3B is a side view showing a state in which a side clutch lever is installed in a space formed inside the operation column on the inner side of the body.

FIG. 5 is a perspective view showing a control unit provided with a single steering lever.

FIG. 6 is a perspective view showing a control unit provided with a side clutch lever.

FIG. 7A is a plan view of the handle attached to the operation column when the side clutch lever is installed. FIG. 7B is a side view showing the operation column of FIG. (C) is a front view of the boot cover.

[Explanation of symbols]

 1 Airframe (traveling machine) 2 Traveling device 2a Steering device 3 Mowing section 4 Threshing section 5 Control section 6 Operation column 6a Steering space section 7 Single steering lever 8 Side operation panel 9 Front cover 10, 11 Handle 60 Top panel 63 Strut 70 Side clutch lever 81 Support frame 72 Hydraulic valve unit 75 Support rod 76 Link mechanism

Claims (2)

[Claims] 1. A combine having a cutting unit and a threshing unit in order from the front on one side of a traveling machine body having a traveling device, and a steering section on the front side of the other side. The operation column is erected so as to be biased toward the vehicle, and the operation column is provided with a single steering lever that steers the aircraft by tilting in the left-right direction. When providing a pair of left and right side clutch levers that steer the machine body by pulling in the front-rear direction, arrange the pair of left and right side clutch levers in a space formed inside the machine body of the operation column. A combine control device characterized by being configured. 2. When the pair of left and right side clutch levers are provided in the control section, the handle of the operator is attached to the portion of the operation column where the single steering lever is attached. The combine control device according to claim 1.