JP2001273047A - Operating lever structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operating lever structure wherein an operation structure itself is reduced in size, with a fitting space reduced as well. SOLUTION: An interlock mechanism F is provided. Here, a cylindrical axle 3 is fitted on an operation axle 2. The operation axle 2 is interlocked with a first device so that the first device is operated by rotation of the operation axle 2 in a first direction. The cylindrical axle 3 is interlocked with a second device so that the second device is operated by rotation of the cylindrical axle 3 in the first direction. The operation axle 2 supports an operating lever 1 for free rotation together with the operation axle 2, as one body, in the first direction, as well as for freely swinging in the second direction across the first direction. The operation of the operating lever 1 in the second direction is transmitted to the cylindrical axle 3, so that the cylindrical axle 3 is rotated in the first direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation lever structure used for operating different objects by lever operations in different directions such as a cross-shaped swing type.

[0002]

2. Description of the Related Art Generally, an operation lever structure of this type has a structure in which the swing in the longitudinal direction is perpendicular to the longitudinal direction, as in the operational lever structure of a combine disclosed in Japanese Patent Application No. 2-45276. Along with being mounted rotatably around the core,
It has a support structure that is mounted to be able to rotate left and right around an axis perpendicular to the left and right direction, and the operation parts that are integrally driven and rotated by lever operation in each direction are symmetrical with each axis. It is provided at a position, and by linking the rotational displacement of the operation unit to each operation target, each operation target can be operated.

[0003]

However, in this kind of operation lever structure, since the structure utilizes the rotational displacement of the operating portion, the rotational displacement due to the forward and backward swing and the right and left swing A space is required to allow for rotational displacement due to movement, and since the structure is such that the operation unit and the operation target are linked via release wires or the like in accordance with different directions of rotation, the connection directions are different. Since the release wires need to be arranged so as not to interfere with each other, there is a problem that a large mounting space is indispensable for both to work well.In this type of operation lever structure, There is a problem that this mounting space needs to be reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and its main problems are that the operation structure itself can be made compact and the mounting space can be reduced. This is to provide an operation lever structure.

[0005]

According to a first feature of the present invention, a cylindrical shaft is relatively rotated along a first direction on an operation shaft rotatably supported along a first direction. The operation shaft is freely fitted, and the first operation shaft is rotated by the operation shaft along the first direction.
The operating shaft and the first device are linked so that the device is operated, and the cylindrical shaft and the second device are operated so that the second device is operated by rotation of the cylindrical shaft along the first direction. And an operation lever that is manually operated on one of the operation shaft and the cylindrical shaft, is rotatable along the first direction integrally with one of the operation shaft and the cylindrical shaft, The operation lever is supported to be swingable in a second direction intersecting the first direction, and the operation of the operation lever in the second direction is transmitted to the other of the operation shaft and the cylindrical shaft. It has a linkage mechanism for rotating the other of the shafts in the first direction, and its operation and effect are as follows.

[Operation] Operation of the operation lever in the first direction,
While the operation of the operation lever in the second direction is a lever operation in a different direction, the coaxial operation shaft and the cylindrical shaft are individually rotated via the linkage mechanism to separate the first device and the second device. Can be operated.

[Effect] Therefore, as compared with the conventional operation lever structure which requires a large mounting space, the direction of the rotational displacement of the operation portion is the same while the lever operation is performed in a different operation direction. The mounting space can be reduced because the and the shaft are compacted with a double structure.

According to a second feature of the present invention, the operation of the operation lever in the second direction is transmitted to the other of the operation shaft and the cylindrical shaft, and the operation of the operation shaft and the cylindrical shaft is performed. An operation arm for rotating the other of the operation levers in the first direction, and a flexible portion that permits the operation of the operation lever along the first direction and does not transmit the operation lever to the operation arm. , The link mechanism is constituted, and the operation and effect thereof are as follows.

[Operation and Effect] When the operating lever is operated in the first direction, the operating shaft is rotated and the cylindrical shaft is not rotated. However, when the operating lever is operated in the second direction, the cylindrical shaft is not operated. When the shaft is rotated and the operation shaft is not rotated, or when the operation lever is operated in the first direction, the cylindrical shaft is rotated and the operation shaft is not rotated, but the operation lever is moved in the second direction. In the operating state, the operating shaft is rotated and the cylindrical shaft is not rotated.
Although the operation in the first direction and the operation in the second direction of the operation lever are lever operations in different directions, the coaxial operation shaft and the cylindrical shaft are separately rotated through the linkage mechanism to perform the second operation. The first device and the second device can be operated.

According to a third aspect of the present invention, the operation lever is rotated by operating the operation lever in the second direction, and is not rotated by the operation of the operation lever in the first direction. An operating lever-side gear that is in a state, and an axial gear that rotates along the first direction integrally with the other of the operating shaft and the cylindrical shaft, and engages the operating lever with the axial-side gear. In this regard, the above-described link mechanism is configured, and the operation and effect are as follows.

[Operation] When the operating lever is operated in the first direction, the shaft side gear of the linkage mechanism and the operating lever side gear do not interfere with each other, but the operating shaft rotates. When the operating lever is operated in the second direction, the shaft side gear and the operating lever side gear of the linkage mechanism are rotated, and the rotation relative to the operation shaft is performed through this rotation. In a configuration in which the free cylindrical shaft is rotated, or in a state where the operation lever is operated in the first direction, there is a non-rotation state in which the shaft side gear and the operation lever side gear of the linkage mechanism do not interfere with each other, The cylindrical shaft is rotated, and when the operation lever is operated in the second direction, the shaft-side gear and the operation lever-side gear of the linkage mechanism are in a rotating state. Since the operation shaft, which is rotatable relative to the operation lever, is configured to rotate, the operation lever is operated in the first direction. When the operation lever - operation and in the second direction, yet different directions of lever operation, first by rotating the coaxial operation axis and the cylindrical shaft to each other via a linkage mechanism
The device and the second device can be operated.

[Effect] Therefore, as compared with the conventional operation lever structure which requires a large mounting space, the operation direction is the same as that of the conventional operation lever, and the direction of the rotational displacement of the operation portion is the same. Since the shaft and the cylindrical shaft are double-structured and compact, the mounting space can be reduced.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIGS.
For example, in a combine, the raising and lowering operation of the reaping unit A is performed by a lever operation in the front-back direction (corresponding to the first direction), and the left-right turning operation of the striker B is performed by a lever operation in the left-right direction (corresponding to the second direction). 2 shows an operation lever structure that can be implemented in the above.

The operating lever structure comprises an operating shaft 2 rotatably supported on both ends around an axis P1, and an operating shaft 2 rotatably fitted to an intermediate portion of the operating shaft 2.
A cylindrical cylindrical shaft 3 having a shorter length, and a downward U-shaped base supported at one end side of the operation shaft 2 around a shaft center P2 orthogonal to the operation shaft 2 via a rotation support pin. An operation lever 1 to which the end portion 1A is connected, and a long hole 4A orthogonal to the operation shaft 2 are formed on the upper surface while being pivotally supported around an axis P2 orthogonal to the operation shaft 2 like the rotation support pin. Gate-shaped restraining member 4 through which the vertical rod portion 1B of the operating lever 1 is inserted.
And an operation arm 5 in which one of the rotation support shafts 5A of the restraining member 4 is formed by bending in a direction along the operation shaft 2 and a rolling contact ball 5B is integrally formed at a tip thereof. The spherical body 5B is placed between parallel plates 6A, 6A of a U-shaped bent plate.
A swinging guide 6 which is internally located in the portion and a base end of which is integrally connected to the cylindrical shaft 3;
The first operating piece 8 is provided integrally with the other end of the cylindrical shaft 3 and is linked to the first device C via the inner wire 7A of the release wire 7, and is provided integrally with the other end of the cylindrical shaft 3. And the second device D and the release wire 9
And the second operation piece 10 linked via the inner wire 9A.

An operating arm 5 for the restraining member 4, a swing guide 6 for the cylindrical shaft 3, and a slot 4A of the restraining member 4 which is a flexible portion G are provided before and after the operating lever-1. Although the operation along the direction is permitted and is not transmitted to the operation arm 1,
A linking mechanism F configured to transmit the operation of the operation lever 1 in the left-right direction to the cylindrical shaft 3 and rotate the cylindrical shaft 3 in the front-rear direction.

The operation lever 1 can be operated in the front-rear direction around the axis P1 of the operation shaft 2 perpendicular to the front-rear direction, and can be operated in the left-right direction around the axis P2 perpendicular to the left-right direction. Is possible.

With such a configuration, the operation lever 1 is manually operated in the front-rear direction within the range of the elongated hole 4A of the restraining member, whereby the first operation is performed by the rotation of the operation shaft 2 along the front-rear direction. The first device C can be operated by pivotally displacing the piece 8 back and forth, and by manually operating the operation lever 1 in the left-right direction, the restraining member 4 is forcibly rotated about the axis P2 and operated. Rolling sphere 5 provided at the tip of arm 5
By rotating the swing guide 6 up and down through B to rotate the cylindrical shaft 3 in the front-back direction, the second operation piece 10 is turned back and forth to operate the second device D. You can.

In this embodiment, the first device C is a mowing unit elevating device for elevating and lowering the mowing unit A of the combine.
The second device D is a turning device of the right and left crawler type running devices B, B, and the relationship between the operation lever 1 and each device C, D will be described below.

FIGS. 4 and 5 show the structure inside the transmission case MK of the running system of the combine. The power from the engine E as a driving unit is transmitted via a belt transmission mechanism 62 having a tension clutch to the main transmission. Is transmitted to the input pulley 26 of the hydrostatic continuously variable transmission M. Of the power from the output shaft 11 of the hydrostatic type continuously variable transmission M, only the forward rotation power is transmitted through the one-way clutch OC, the first transmission shaft 24, the output pulley 25, and the cutting clutch 63, and the cutting section. It is transmitted to the input pull 53A of 53.

As shown in FIG. 6, in this combine, a hydraulic cylinder 9 for raising and lowering the cutting unit A is used.
0 is mechanically linked with a lifting / lowering switching valve 91 for the reaping unit C. The reaping unit lifting / lowering device C is constituted by rotating the operating lever 1 in the front-rear direction. The cutting section A can be moved up and down by operation. Specifically, when the operation lever 1 is rotated rearward from the neutral position, the reaping unit A rises, and when the operation lever 1 is rotated forward from the neutral position, the reaping unit A descends.

The power from the output shaft 11 is transmitted to the second transmission shaft 31 via the first gear 20. This second transmission shaft 3
A first high-speed gear 32 is externally fitted to 1 so as to be relatively rotatable, and a shift gear 13 is slidably mounted in a spline structure. The third transmission shaft 34 has a low-speed gear 3
5, the medium-speed gear 18 and the second high-speed gear 33 are attached in a spline structure, and the first and second high-speed gears 32, 33
Is biting. Thus, by sliding the shift gear 13 to engage the first high-speed gear 32, the medium-speed gear 18, and the low-speed gear 35, the power can be shifted to three stages of high, medium, and low. Is transmitted to the first output gear 17 that meshes with the first gear. As described above, the gear transmission type transmission 54 is configured.

Right and left side gears 22 are fitted around the support shaft 16 supporting the first output gear 17 so as to be rotatable relative to each other, and input gears 28 of the left and right axles 15 always mesh with the left and right side gears 22. -ing This allows
An occlusal type first clutch FC (corresponding to a side clutch) is formed between the right or left side gear 22 and the first output gear 17, and the convex engagement portion 23 of the side gear 22 is connected to the first output gear 17. The forward rotation power is transmitted to the right and left crawler-type running devices B, B by engaging with the right and left. or,
The spring 29 biases the side gear 22 toward the first output gear 17. As described above, the second transmission shaft 31
Thus, a normal rotation system driving mechanism is constituted by the shift gear 13, the medium speed gear 18, the first output gear 17, and the like.

A pair of second output gears 1 are provided on the left and right sides of the support shaft 16.
9, the second output gear 19 and the support shaft 16
And a second clutch RC of a multi-plate friction type. On the other hand, the second gear 2 is provided at both ends of the third transmission shaft 34.
1 is fixed, and a sleeve 48 is externally fitted to the bearing so that the third transmission shaft 34 can be slid left and right. In this case, the low-speed gear 35 and the medium-speed gear 18
The third transmission shaft 34
The low-speed gear 35 and the medium-speed gear 1
The position of 8 does not change. The second gear 21, the third gear 37, the fourth gear 38, the second output gear 19, the second clutch RC, and the like interlocked with the third transmission shaft 34 constitute a reverse rotation system drive mechanism.

Then, the gear transmission type transmission 54
, A forward rotation system drive mechanism and a reverse rotation system drive mechanism constitute a left and right crawler-type traveling device B, and a turning device D of B. Hereinafter, the operation of the turning device D will be described.

The state shown in FIG. 4 is a state in which the third transmission shaft 34 is being slid to the left in the drawing, and a state in which the left and right second gears 21 are engaged with the left and right third gears 37.
In this state, the power of the third transmission shaft 34 is
The power is transmitted to the left and right second output gears 19 via the transmission shaft 49 and the fourth gear 38 in a reverse rotation state. Accordingly, for example, when the left side gear 22 is separated from the first output gear 17 and the second clutch RC is pressed and operated by the pressing portion 27 of the side gear 22, the reverse rotation power of the left second output gear 19 is transmitted to the left traveling device B. It will be transmitted and you can make a left turn. When the pressing force of the left side gear 22 is reduced and the second clutch RC is slid, the forward force of the right striker B and the driving force of the reverse rotation of the left striker 14 are balanced, and the left strike The device B is apparently stopped. This allows a pivot turn to the left.

Next, the third transmission shaft 3 is switched by the switching lever 47.
When the slider 4 is slid from the state shown in FIG. 4 to the right in the drawing, the left and right second gears 21 are shifted to the positions indicated by two-dot chain lines and directly mesh with the left and right second output gears 19. Thereby, the forward rotation power, which is lower in speed than the forward rotation power transmitted from the third transmission shaft 34 to the first output gear 17, is transmitted from the third transmission shaft 34 to the second output gear 19. Therefore, for example, when the second clutch RC is pressed and operated by the left side gear 22, the left traveling device B is driven to rotate forward at a lower speed than the right traveling device B, and the aircraft slowly turns left.

Next, the slide operation structure of the side gear 22 will be described. As shown in FIGS. 4 and 5, an operating arm 30 for sliding operation of the side gear 22 and a hydraulic cylinder 39 for swinging the arm are provided. And
Hydraulic oil from a pump 40 is supplied to a turning control valve 41 for a hydraulic cylinder 39. The side gear 22 is the first
When the hydraulic cylinder 39 extends until it is separated from the output gear 17 (the first clutch FC is disengaged) and moves to a position where the second clutch RC is not pressed and operated, the hydraulic oil is removed from the hydraulic cylinder 39 to remove the hydraulic oil. Is stopped at that position.
Further, a variable relief valve 43 is provided in the drain oil passage 42.

Next, the operation of the swing control valve 41 and the variable relief valve 43 will be described. The state shown in FIG. 4 is a straight traveling state in which the left and right side gears 22 mesh with the first output gear 17. From this state, for example, the operation lever-1 is moved to the left first position.
When the operation is performed up to the turning position L1, only the turning control valve 41 is switched via the release wire 7, hydraulic fluid is supplied to the left hydraulic cylinder 39, and the left side gear 22 slides to the left on the drawing sheet. Moves away from the first output gear 17 (the disengagement state of the first clutch FC). in this case,
The drain oil passage 42 opens at the neutral position before the left side gear 22 presses the second clutch RC, the hydraulic oil flows out of the variable relief valve 43, and the left side gear 22 stops at the neutral position. This is a state in which transmission to the left running device 14 has been cut off. This causes the aircraft to gently turn to the left.

When the operating lever-1 is turned to the left and operated to the second turning position L2, the variable relief valve 43 is throttled through the release wire 7, and the hydraulic cylinder 39 is extended from the neutral position. And the second clutch R on the left
C Completely entered and operated. In this case, if the third transmission shaft 34 is slid leftward on the paper as shown in FIG. 4, the left traveling device B is driven in reverse.

When the operating lever-1 is located between the first and second left and right turning positions L1 and L2, the hydraulic oil is removed from the hydraulic cylinder 39 from the state described above, and the pressing force on the second clutch RC is reduced. Can be weakened. Thereby, the second clutch RC
Slides, and the left striker B stops. The position (the position at which the second clutch RC slides) and the second turning position L2
When the operation lever-1 is operated between the second clutch RC
Is changed, and the reverse rotation speed of the left traveling device B can be changed.

Conversely, when the third transmission shaft 34 is slid rightward on the paper surface and the second gear 21 is directly engaged with the second output gear 19, the operation lever-1 is moved to the left second turning position L2. , The left striker B becomes the right striker B.
It is driven in a forward rotation state at a lower speed.

When the operating lever-1 is operated between the left first turning position L1 and the second turning position L2, the pressing force on the second clutch RC is changed and the left traveling device B rotates forward. You can change the speed. The above operation is similarly performed at the right first turning position R1 and the second turning position R2.

As shown in FIG. 5, a manually operated opening / closing valve 46 is provided in the oil drain passage 45 of the turning control valve 41, and a reaping and squeezing pedal 50 is provided at the foot of a control section of the machine body. 46 can be switched to a closed state.

Normally, the on-off valve 46 is in an open position by a spring. When the operation pedal 50C is depressed, the on-off valve 46
Is switched to the closed position, and the hydraulic oil from the pump 40 cannot be discharged from the oil drain passage 45, but is supplied to the left and right hydraulic cylinders 39. As a result, the left and right hydraulic cylinders 39 extend to drain oil from the drain oil passage 42,
Stop at the neutral position described above. The neutral position is such that the left and right side gears 22 are connected to the first output gear 17 as described above.
(The first clutches FC, FC are in the disengaged state) and the second clutch RC is not pressed and operated. As a result, the aircraft stops, but the power of the engine E is transferred from the output shaft 1 of the hydrostatic continuously variable transmission M to the first transmission shaft 2.
4 to the reaper A. The fourth transmission shaft 4
A parking brake 60 is provided at an end of the switch 9 and is linked to an operation mechanism (not shown).

[Second Embodiment] The operation lever structure is as follows.
As shown in FIGS. 7 (a) and 8, the operation shaft 2 is rotatably fitted around the shaft center P1 and both ends thereof are supported by bearings. And a cylindrical cylindrical shaft 3 having a shorter length than the operating shaft 2 to which an operating lever-side gear 70 formed of a bevel gear is integrally connected at a base end, and a boss 2A at one end of the operating shaft 2. A driven shaft 80 rotatably supported and engaged at its tip with a rotation support shaft 71A of a shaft side gear 71 which is a bevel gear meshing with the operation lever side gear 70; An operating lever 1 integrally connected to the fork base 80 so as to straddle the boss 2A; a first device C and an inner wire 7 of the release wire 7 integrally connected to the other end of the operating shaft 2;
The first operation piece 8 linked via A is provided integrally with the other end of the cylindrical shaft 3 and is linked with the second device D via the inner wire 9A of the release wire 9. And a second operation piece 10.

As shown in FIG. 7 (b), the driven shaft 80 and the rotation support shaft 71A of the shaft-side gear 71 are engaged with each other at the tip of the driven shaft 80 in the direction of rotation of the operating shaft 2. Is formed, and the protrusion 80A of the driven shaft 80 is fitted to the tip of the rotation support shaft 71A of the shaft-side gear 71 only when the driven shaft 80 and the axis match. A concave portion 71B is formed along the rotation direction of the operation shaft 2, which is in a non-fitting state when the driven shaft 80 intersects with the shaft center.

In this embodiment, the operating lever-side gear 70, the driven shaft 80, the convex portion 80A of the driven shaft 80, the shaft-side gear 71, and the rotation support shaft of the shaft-side gear 71. A concave portion 71B of the operating lever 71 is provided to allow the operation of the operating lever-1 in the front-rear direction and is not transmitted to the operating lever-side gear 70. A linkage mechanism F that transmits the rotation to the side gear 71 and rotates the cylindrical shaft 3 in the front-rear direction is configured.

With such a configuration, as shown in FIG. 7, when the operation lever-1 is operated in the front-rear direction, the rotation of the projection 80A of the driven shaft 80 and the driving gear 71 is performed. The support shaft 71A is disengaged from the concave portion 71B and the operation shaft 2 is rotated, and the first operation piece 8 of the operation shaft 2 is rotated, whereby the first device C can be operated. As shown in FIG. 8, when the operation lever-1 is operated in the left-right direction, the driven shaft 80 rotates, and the driven shaft 8 rotates.
The shaft-side gear 71 fitted and connected to the shaft 0 rotates, and the operation lever-side gear 70 engaged with the shaft-side gear 71 rotates and is integrally connected to the operation lever-side gear 70. The second device D can be operated by the rotation of the cylindrical shaft 3 and the rotation of the second operation piece 10 of the cylindrical shaft 3.

[Other Embodiments] (1) In the first embodiment, the operation lever 1 which is artificially operated by the operation shaft 2 is rotatable in the front-rear direction integrally with the cylindrical shaft 3. And, it is swingably supported in the left-right direction intersecting the front-rear direction, and transmits the left-right operation of the operation lever-1 to the cylindrical shaft 3 to rotate the cylindrical shaft 3 along the front-rear direction. Although the operation lever structure provided with the mechanism F has been described, the present invention is not limited to this, and the operation lever 1 that is artificially operated is attached to the cylindrical shaft 3 along the operation shaft 2 in the front-rear direction. To rotate freely and swingably in the left-right direction intersecting the front-rear direction, transmitting the left-right operation of the operation lever-1 to the operation shaft 2, and moving the operation shaft 2 along the front-rear direction. An operation lever structure provided with a linkage mechanism F that rotates by rotation.

That is, as shown in FIGS. 9 and 10, the operation lever structure includes an operation shaft 2 whose both ends are supported by bearings so as to be rotatable around an axis P1, and an intermediate portion of the operation shaft 2. A cylindrical cylindrical shaft 3 having a shorter length than the operation shaft 2 which is rotatably fitted to the outer periphery, and an axis center orthogonal to the cylindrical shaft 3 via a rotation support pin at one end of the cylindrical shaft 3 An operation lever 1 connected to a downwardly U-shaped base end pivotally supported by P2; The operation lever 1 is formed by forming a slot 4A, which is a flexible portion orthogonal to the
And a pivotal support shaft 5A of the restraint member 4 is bent in the direction along the operation shaft 2 to form a rolling contact ball 5B integrally at the tip. The operating arm 5 and the rolling sphere 5B of the operating arm 5 are located inside the portions 6A, 6A between the parallel plates of the U-shaped bent plate, and the base end is integrally connected to the operating shaft 2. The swinging guide 6 is provided integrally with the other end of the operation shaft 2, and the second device and the release wire 9 are provided integrally.
The first operation piece 8 linked via an inner wire 9A is provided integrally with the other end of the cylindrical shaft 3 and linked to the first device C via an inner wire 7A of a release wire 7. The same operation and effect as those of the first embodiment can be obtained even when the second operation piece 10 is used.

(2) In the second embodiment, the operation lever-1 is rotated by the operation along the left-right direction, and the operation lever-1 is not rotated by the operation along the front-rear direction. An operating lever-side gear 70, and a shaft-side gear 71 that rotates integrally with the cylindrical shaft 3 along the front-rear direction. The operation lever-side gear 70 and the shaft-side gear 71 are engaged with each other,
Although the operation lever structure in which the linkage mechanism F is configured has been described, the present invention is not limited to this, and the operation lever-1 is rotated by an operation along the left-right direction and the operation lever-1 is operated.
An operation lever-side gear 70, which is in a non-rotational state when operated along the front-rear direction, and a shaft-side gear 71, which rotates together with the operation shaft 2 in the front-rear direction, are provided. An operation lever structure in which the gear 70 and the shaft-side gear 71 are engaged with each other to form the linkage mechanism F may be used.

That is, as shown in FIGS. 11 and 12,
This operation lever structure includes an operation shaft 2 having both ends supported rotatably about an axis P1 and an operation lever-side gear 70 formed of a bevel gear in the middle, and
A cylindrical cylindrical shaft 3 having a shorter length than the operation shaft 2 rotatably fitted to an intermediate portion of the operation shaft 2;
Boss 3 formed integrally with the other end of the shaft and orthogonal to the operation shaft 2
A and the boss portion 3A are rotatably supported by being divided into both end portions except for a central portion through which the operation shaft 2 is inserted.
A driven shaft 80 fitted and connected to a rotation support shaft 71A of a shaft side gear 71 formed of a bevel gear meshing with the operation lever side gear 70, and a forked base 1A is connected to the driven shaft 80 by a boss 3A. And an operation lever 1 integrally connected to the base 1A so as to straddle a
The first operation piece 8 linked to the device D via the inner wire 9A of the release wire 9 is provided integrally with one end of the cylindrical shaft 3 and the inner wire of the first device C and the release wire 7 is provided. The same operation and effect as in the second embodiment can be obtained even when the second operation piece 10 is connected to the second operation piece 10 via the 7A.

(3) In the above embodiment, an example is described in which the present invention is applied to an operating lever of a work vehicle such as a combine. However, the present invention is not limited to this, and is applicable to a cross-shaped operating lever used for remote control operation. The present invention may be applied to a control lever of a construction machine or a weight control machine in which a plurality of operations are incorporated in one control lever.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an operation lever structure according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation of an operation lever.

FIG. 3 is a diagram illustrating the operation of an operation lever.

FIG. 4 is a configuration diagram showing a strike transmission mechanism and a mowing transmission mechanism.

FIG. 5 is a schematic configuration diagram of a turning device.

FIG. 6 is a schematic configuration diagram of a mowing unit elevating device.

FIG. 7 is an operation explanatory view of an operation lever structure according to a second embodiment.

FIG. 8 is an operation explanatory view of an operation lever structure.

FIG. 9 is an operation explanatory view of an operation lever structure of another embodiment.

FIG. 10 is a diagram illustrating the operation of an operation lever.

FIG. 11 is an operation explanatory view of an operation lever structure according to another embodiment.

FIG. 12 is a diagram illustrating the operation of an operation lever.

[Description of Signs] 1 Operating lever 2 Operating shaft 3 Cylindrical shaft 5 Operating arm C First device D Second device G Flexible part F Linkage mechanism 70 Operating lever side gear 71 Shaft side gear

Claims (3)

[Claims] 1. An operation shaft rotatably supported along a first direction, a cylindrical shaft being externally fitted to the operation shaft so as to be relatively rotatable along the first direction, and along the first direction of the operation shaft. The operation shaft and the first device are linked so that the first device is operated by the rotation of the second shaft, and the second shaft is rotated by the cylindrical shaft along the first direction.
The cylinder shaft and the second device are linked so that the device is operated, and an operation lever that is artificially operated is attached to one of the operation shaft and the cylinder shaft. One of which is rotatably supported along a first direction and swingably movable in a second direction intersecting the first direction, wherein the operation of the operation lever in the second direction is performed by the operation shaft and the cylinder. An operation lever structure including a linkage mechanism for transmitting the other of the shafts and rotating the other of the operation shaft and the cylindrical shaft along a first direction. 2. An operation of the operating lever in a second direction is transmitted to the other of the operating shaft and the cylindrical shaft, and the other of the operating shaft and the cylindrical shaft is moved along the first direction. The linking mechanism, comprising: an operating arm for rotating the operating lever; and a flexible portion that allows the operating lever to be operated in the first direction and does not transmit the operating arm. The operation lever structure according to claim 1. 3. An operation lever-side gear which is rotated by an operation of the operation lever in a second direction and which is in a non-rotation state by an operation of the operation lever in a first direction. A shaft-side gear that rotates along the first direction integrally with the other of the operation shaft and the cylindrical shaft, and the operation lever and the shaft-side gear are engaged with each other to constitute the linkage mechanism. The operating lever structure according to claim 1, wherein the operating lever structure is provided.