JP2004130982A - Operation section structure for riding type work machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type work machine facilitating working device lifting operation and headlight operation in turning travel. <P>SOLUTION: A working operation tool 23 for lifting and falling the working device and a headlight operation tool 22 for turning on and off a headlight are arranged in the same lateral side of a rotary shaft center 5b of a steering wheel 5. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a driving unit structure of a riding type working machine, such as a cultivator or a rice transplanter, in which a working device is connected to a rear part of a self-propelled vehicle body so as to be able to move up and down.
[0002]
[Prior art]
Conventionally, in the above-mentioned riding type working machine, as shown in, for example, Patent Document 1, there is a type in which an operating lever as a working operating tool for operating a working device up and down is arranged on a side of a rotation axis of a steering wheel. .
In addition, in the above-mentioned riding type working machine, a light switch as a headlight operating tool for turning on / off a headlight is conventionally mounted on an operation panel, as shown in Non-Patent Document 1, for example.
[0003]
[Patent Document 1]
JP-A-9-74814 (paragraph numbers [0017], [0018], [0019], FIG. 3)
[Non-patent document 1]
Fuwa Kazu Ai et al., "Basic Agricultural Seminar, Structure and Utilization of Agricultural Machinery", Agriculture, Mountain and Fishing Village Cultural Association, March 10, 2000, first print, p. 69
[0004]
[Problems to be solved by the invention]
In general, work such as tilling or rice planting using a riding type work machine is performed by turning a vehicle body toward a next work row when the work reaches a ridge after finishing a work row. This turning is preferably performed at a location close to the ridge rather than at a location away from the ridge because unoccupied land formed on the ridge becomes narrower. For this reason, turning on a headlight may make it easier to see the ridge and bring the vehicle closer to the ridge, such as when the ridge is in a shaded area or at sunset. In this case, in addition to the operation of the steering wheel and the operation of lifting the working device, an operation of turning on a headlight is required. Conventionally, however, it is necessary to extend a hand to a driving panel for a lighting operation. Was hanging. In some cases, the vehicle must be driven at a reduced speed so that the lighting of the ridge cannot be illuminated due to a lighting delay.
[0005]
An object of the present invention is to provide a driving unit structure of a riding type working machine that can easily and quickly turn on a headlight even when turning.
[0006]
[Means for Solving the Problems]
The configuration, operation and effect of the invention according to claim 1 are as follows.
[0007]
〔Constitution〕
In a driving unit structure of a riding type work machine in which a working device is connected to a rear part of a self-propelled vehicle so as to be able to move up and down freely, a work operating tool for operating the working device up and down, and a headlight for turning on and off a headlight The operating tool is arranged on the same lateral side of the rotation axis of the steering wheel.
[0008]
[Action]
Since the work operation tool and the headlight operation tool are arranged on the same lateral side of the rotation axis of the steering wheel, the steering wheel is operated with one hand to steer the vehicle body. If the other hand is slightly moved from the steering wheel or the finger of the hand is extended, the work operation tool and the headlight operation tool are reached, the work operation tool is operated to lift the work device, and the headlight operation is performed. The headlight can be turned on by operating the tool.
[0009]
〔effect〕
Therefore, when turning while illuminating the ridge, etc., it is possible to quickly and easily lift the working device and turn on the headlight by slightly moving the hand different from the one operating the steering wheel. The turning operation can be quickly performed from this operation surface, and work can be performed efficiently.
[0010]
The configuration, operation and effect of the invention according to claim 2 are as follows.
[0011]
〔Constitution〕
In the configuration of the invention according to claim 1, the lifting switch operated by the work operation tool and the headlight switch operated by the headlight operation tool are supported by one switch holder, and the switch holder The work operation tool and the headlight operation tool are supported.
[0012]
[Action]
The lifting switch and the headlamp switch are supported by one switch holder, and the work holder and the headlamp operating tool are supported by this switch holder. Each operation tool is brought into a predetermined assembled state at once.
[0013]
〔effect〕
Therefore, by assembling the switches and the operating tools at once, the above-described switch having good operability can be efficiently assembled.
[0014]
The configuration, operation and effect of the invention according to claim 3 are as follows.
[0015]
〔Constitution〕
In the configuration of the invention according to claim 1 or 2, the operation unit of the work operation tool is located on the front side of the vehicle body with respect to the headlight operation tool.
[0016]
[Action]
If the swing type is adopted as the work operation tool and the rotary type is adopted as the headlight operation tool, each of the operation tools becomes an operation tool of an operation form adapted to the operation target, and it is difficult to cause operation errors. Can be operated. Since the operation part of the work operation tool is located on the front side of the vehicle body with respect to the headlight operation tool, the swing operation type is used as the work operation tool while making it easy to operate all the operation tools. A rotary type can be adopted as the lamp operating tool.
[0017]
〔effect〕
Therefore, while both the work operation tool and the headlight operation tool are located on the same lateral side of the steering hole rotation axis, the swing operation type as the work operation tool and the rotary type as the headlight operation tool are used. By adopting each of them, both the working device and the headlight can be operated so as to be hardly operated.
[0018]
The configuration, operation and effect of the invention according to claim 4 are as follows.
[0019]
〔Constitution〕
In the configuration of the invention according to claim 3, the headlight operating tool is located right beside the rotation axis of the steering wheel.
[0020]
[Action]
Since the headlight operating tool is located right beside the axis of rotation of the steering wheel, the operation becomes easier when a rotary type headlight operating tool is adopted.
[0021]
〔effect〕
By adopting a rotary type headlight operating tool, the headlight can be operated so that an operation error is unlikely to occur, and the operation can be easily performed.
[0022]
The structure, operation and effect of the invention according to claim 5 are as follows.
[0023]
〔Constitution〕
In the configuration of the invention according to claim 3 or 4, the distance at which the operation unit of the work operation tool is separated from the steering wheel rotation axis is the distance at which the headlight operation tool is separated from the steering wheel rotation axis. It is larger.
[0024]
[Action]
Since the distance that the operation part of the work operation tool is separated from the steering wheel rotation axis is longer than the distance that the headlight operation tool is separated from the steering wheel rotation axis, the work operation tool is operated. In doing so, the headlight operating tools can be arranged so as to be distributed in the vehicle longitudinal direction while making the headlight operating tools less likely to become obstacles.
[0025]
〔effect〕
Therefore, although the operation unit of the work operation tool is disposed on the front side of the vehicle body with respect to the headlight operation tool, all the operation tools can be easily operated to easily operate the work apparatus and the headlight.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIGS. 1 and 2, the vehicle has an engine 3 which is self-propelled by a pair of left and right driveable and steerable front wheels 1 and a pair of left and right driveable rear wheels 2 and is located at a front portion of the vehicle body. A driving mechanism, a driving cabin 4 located behind the driving section, a steering wheel 5, and a transmission case 7 which constitutes a rear part of a self-propelled vehicle body including a driving section equipped with a driving seat 6 via a link mechanism 8. And the rotary tilling device 9 is connected to the rotary tilling device 9 via the rotary shaft 10 to transmit the driving force of the engine 3 of the self-propelled vehicle body from the power take-out shaft 7a of the transmission case 7 to the rider. It constitutes a type tiller.
[0027]
The tiller performs tillage work. When the steering wheel 5 is rotated, the left and right front wheels 1 swing in a direction equal to the rotation direction of the steering wheel 5 by an angle corresponding to the rotation angle of the steering wheel 5. Then, the steering operation can be performed such that the vehicle travels straight or the vehicle runs leftward or rightward. When the single-acting lift cylinder 11 connected to each of the pair of left and right lift arms 12 of the link mechanism 8 is operated, the link mechanism 8 is driven by the drive force of the lift cylinder 11 and the weight of the rotary plow 9 so that the transmission case 7 , The rotary tilling device 9 is moved up and down to a lowering work position in which the rotor 9a is in contact with the field and a rising and non-working position in which the rotor 9a rises from the field scene. When the self-propelled vehicle body travels with the rotary tilling device 9 set in the lowering work position, the field is tilled by the rotor 9a with which the rotary tilling device 9 rotates.
[0028]
A headlight 14 is provided at the front end of the engine hood 13, and direction indicators 15 a and 15 b are provided on both sides of the front and rear walls of the driving cabin 4. The operation of the headlight 14 and the direction indicators 15a and 15b, and the operation of raising and lowering the rotary tilling device 9 are performed by using the indicator lever 21 as shown in FIG. It is configured to be performed by an operating device provided with a tool 22 and a work operating tool 23. This operating device is specifically configured as follows.
[0029]
As shown in FIG. 4 and the like, both the indicator lever 21 and the work operation tool 23 are fixed to the upper end of the steering post 5c supporting the rotation support shaft 5a of the steering wheel 5, and One switch holder 25 located near the lower side extends toward the outer peripheral side of the steering wheel 5. The headlight operating tool 22 is attached to the tip of the indicator lever 21. Accordingly, as shown in FIG. 3, the indicator lever 21, the work operation tool 23, and the headlight operation tool 22 are all on the same lateral side of both sides of the rotation axis 5 b of the steering wheel 5. On the right side.
[0030]
The indicator lever 21 is configured to swing in the vehicle front-rear direction with a base end side rotatably supported by the switch holder 25 as a swing fulcrum. As described above, the switch operating shaft 22a extending integrally and rotatably from here is connected to the indicator lever 21 so as to be rotatable as a mounting shaft. That is, the indicator lever 21 and the headlight operating tool 22 are such that the headlight operating tool 22 is an operating portion of the indicator lever 21, and the indicator lever 21 and the switch holder 25 are moved in the vehicle longitudinal direction with respect to the switch holder 25. This is a combination operating tool that swings and rotates the headlight operating tool 22 independently around the axis of the switch operating shaft 22a.
[0031]
The indicator lever 21 is pivoted in the vehicle longitudinal direction, so that the neutral position N shown in FIG. 3, the left instruction position L that is swung about 10 degrees forward from the neutral position N toward the vehicle body, and the neutral position N shown in FIG. It is configured to switch to three operation positions of a right pointing position R that has swung to the rear side of the vehicle body by about 10 degrees. When the indicator lever 21 is located at the neutral position N, the headlight operating tool 22 is configured to be located right beside the steering wheel rotation axis 5b when viewed in a direction along the rotation axis 5b of the steering wheel 5. It is.
[0032]
The headlight operating tool 22 is rotated by turning operation to turn the cutting position OFF, the low position LO rotated about 25 degrees in the normal rotation direction from the cutting position OFF, and the high position rotated about 25 degrees in the normal rotation direction from the low position LO. It is configured to switch to the three operation positions of position HI.
[0033]
A direction indicating switch 31 linked to the indicator lever 21 and a headlight switch 32 linked to the switch operating shaft 22a of the headlight operating tool 22 are provided outside or inside the switch holder 25. is there. As shown in FIG. 5, the direction indicator switch 31 is linked to the power switch 33, the lamps of the plurality of direction indicators 15a and 15b, and the flasher unit 34, and the indicator lever 21 is moved to the three operating positions N and L. , R, it is configured to switch to three states of left-turning and right-turning due to this operating force. The headlight switch 32 is linked to the headlight 14, and when the headlight implement 22 is switched to the three operation positions OFF, LO, and HI, the headlight switch 32 is turned off due to this operation force. , Low, and high.
The power switch 33 is operated by a detachable key (not shown) as shown in FIG.
[0034]
The work operation tool 23 is configured to swing in the vertical direction of the vehicle body with the base end side rotatably supported by the switch holder 25 as a swing fulcrum. A neutral position N, an up position UP that has swung up from the neutral position N, and a down position DN that has swung down from the neutral position N are configured to switch to the three operating positions, and return to the neutral position N naturally. It is configured to do so.
[0035]
A resin member is attached to the distal end side of the work operation tool 23 to form an operation section 23a having a larger diameter than the base end side. The work operation tool 23 is further configured as shown in FIG. That is, the entire operation unit 23a is located on the vehicle body front side with respect to the headlight operation tool 22. Further, the distance L1 at which the tip of the operating portion 23a is separated from the rotation axis 5b of the steering wheel 5 is the distance L2 at which the tip of the headlight operating tool 22 is separated from the rotation axis 5b of the steering wheel 5. It is configured to be larger.
[0036]
An elevating switch 35 in which the base end of the work operation tool 23 is interlocked is provided inside the switch holder 25, and the work operation tool 23 is moved to the three operation positions N, UP, and DN. When the switching operation is performed, the operation state is switched to the neutral state, the ascending command state, and the descending command state due to the operation force. As shown in FIG. 6, the lift switch 35 is linked to a control means 37 using a microcomputer which is linked to an electromagnetic operation section of a control valve 36 of the lift cylinder 11. The control means 37 automatically operates the control valve 36 based on the detection result of the tillage depth sensor 39 for detecting the tillage depth of the rotary tillage device 9 to operate the lift cylinder 11, thereby obtaining the tillage depth sensor. The rotary tilling device 9 is automatically moved up and down so that the tillage depth detected by 39 becomes the tillage depth set by the tillage depth setting device 40. The up / down switch 35 outputs a command for forcibly raising the rotary tillage device 9 to the ascending non-working position to the control means 37 when the ascending command state is set, and sets the tillage to the rotary tillage device 9 when the descent command state is reached. A command to execute the automatic tillage depth control for maintaining the depth is output to the control means 37.
The tillage depth sensor 39 is disposed so as to cover the rear of the tillage rotor 9a, and is supported by the machine frame of the rotary tillage device 9 so as to be swingable up and down such that the free end side comes into contact with the ground after the tillage. It comprises a potentiometer linked to the vertical swing of a certain rotary cover 38, and detects the tillage depth based on the swing angle of the rotary cover 38.
[0037]
That is, when the vehicle body is turned toward the next work row after the completion of the tilling work in a certain work row, the work operation tool 23 is swung upward to the ascending position UP. Then, the elevation switch 35 outputs an elevation command to the control means 37, and this control means 37 forcibly operates the lift cylinder 11 to the elevation side, whereby the rotary tillage device 9 is elevated to the elevation non-working position. When the turning of the vehicle body is completed, the work operation tool 23 is swung down to the lowered position DN. Then, the raising / lowering switch 35 outputs a lowering command to the control means 37, and the control means 37 executes automatic plowing depth control for automatically operating the lift cylinder 12, whereby the rotary plowing device 9 is controlled by the plowing depth setting device 40. Lower until the set tillage depth is reached.
[0038]
When changing the traveling direction of the vehicle body, when the indicator lever 21 is swung forward from the neutral position N to the left instruction position L, the direction instruction switch 31 enters the left position, and the left and right direction instruction is performed. The lamp 15a blinks by the action of the flasher unit 34. When the indicator lever 21 is pivoted backward from the neutral position N to the right instruction position R, the direction instruction switch 31 is turned to the right, and the right and left direction indicators 15b are turned on and off of the flasher unit 34. Blinks by action.
[0039]
When the headlight 32 needs to be turned on, the headlight operating tool 22 is turned from the off position to the low position LO or the high position HI. When operated to the low position LO, the headlight switch 32 is turned on and the headlight 14 is turned on in a low beam state. When operated to the high position HI, the headlight switch 32 is turned on, and the headlight 14 is turned on in a high beam state.
[0040]
The rear left and right direction indicators 15a and 15b are mounted by a mounting structure shown in FIG.
That is, a lamp stay 43 made of a bent sheet metal having a U-shaped cross section is mounted on a vertically extending frame 42 of a cabin located on a lateral side of a hatchback glass 41 which can swing up and down around a horizontal axis located at an upper end side. The direction indicators 15a and 15b are fixedly fastened to the rearward supporting surface 43a of the lamp stay 43 having the wiring holes 44 by mounting screws.
[0041]
[Another embodiment]
The present invention can be applied to various work vehicles such as lawn mowers and rice transplanters in addition to cultivators. Therefore, these are collectively referred to as a riding type working machine, and the rotary tilling device 9 and the like are referred to as a working device 9.
[Brief description of the drawings]
FIG. 1 is a side view of the entire riding cultivator. FIG. 2 is a rear view of a self-propelled vehicle body. FIG. 3 is a plan view of an operating tool disposition portion. FIG. 4 is a rear view showing a positional relationship between the operating tool and a steering wheel. FIG. 5 is an electric circuit diagram. FIG. 6 is a block diagram. FIG. 7 is a perspective view of a mounting structure of a direction indicator.
9 Working device 14 Headlight 22 Headlight operating tool 23 Work operating tool 25 Switch holder 32 Headlight switch 35 Elevating switch L1 Distance of operating section of work operating tool from steering wheel rotation axis L2 Headlight operating tool Of the steering wheel from the axis of rotation

Claims (5)

An operating unit structure of a riding type working machine in which a working device is connected to a rear part of the self-propelled body so as to be able to lift and lower freely,
An operation unit of a riding-type work machine in which a work operation tool for raising and lowering the work device and a headlight operation tool for turning on and off a headlight are arranged on the same lateral side of a rotation axis of a steering wheel. Construction. A lift switch operated by the work operation tool, and a headlight switch operated by the headlight operation tool are supported by one switch holder, and the work operation tool and the headlight are mounted on the switch holder. The operating part structure of the riding type working machine according to claim 1, wherein the operating tool is supported. The driving unit structure of the riding type working machine according to claim 1, wherein the operation unit of the work operation tool is located on a vehicle body front side with respect to the headlight operation tool. 4. The driving unit structure of a riding type working machine according to claim 3, wherein the headlight operating tool is located right beside a rotation axis of the steering wheel. 5. The distance that the operation unit of the work operation tool is separated from the steering wheel rotation axis is greater than the distance that the headlight operation tool is separated from the steering wheel rotation axis. 6. Of the driving section of the riding type work machine.

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