JP4216767B2 - Operation equipment for construction machinery - Google Patents

Description

  The present invention relates to a construction machine driving operation apparatus that is provided in a construction machine such as a wheel loader, a hydraulic excavator, and the like, and is preferably used for driving a vehicle body or a work device.

  In general, construction machines include, for example, a wheel loader, a hydraulic excavator, etc., and these construction machines are provided with a driving operation device for operating, stopping, and steering a vehicle body and operating a working device by an operator. ing.

  As a construction machine according to this type of technology, a wheel loader will be described as an example. The wheel loader is provided with a self-propelled vehicle body and a front side of the vehicle body that can be lifted and lowered. Is substantially constituted by a work device to which is attached (for example, see Patent Documents 1 and 2).

Japanese Utility Model Publication No. 5-26582 JP-A-10-121522

  The vehicle body is provided with a driver's seat on which the operator is seated, a steering wheel that is positioned on the front side of the driver's seat, and the operator steers the vehicle body, and pedal devices such as an accelerator pedal and a brake pedal that the operator steps on. It has been. Further, a shift lever that shifts up and down the shift gear when the vehicle body travels is provided in the vicinity of the steering wheel, and this shift lever extends, for example, to the left side of the operator.

  Further, a shift selection switch for selecting transmission shift control is provided in the vicinity of the steering wheel, and the shift selection switch is selected according to a manual shift in which an operator manually switches a shift gear and a driving state of the vehicle body. One shift control is selected from the automatic shift that automatically switches the shift gear.

  Further, on the right side of the driver's seat, a work operation lever for operating a boom, a bucket, and the like of the work device is provided. In this case, the operation lever includes a boom operation lever that moves the boom up and down, and a bucket operation lever that rotates the bucket on the tip end side of the boom. It is attached to the upper surface of a console provided on the right side of the driver's seat.

  Here, when using a wheel loader at a work site or the like, for example, a pile such as earth and sand piled up on the ground may be scooped up and loaded onto a truck bed. In such loading work, for example, the operator uses the left hand to push the steering wheel. In many cases, the operating device is operated by operating the boom operation lever and the bucket operation lever with the right hand while operating.

  Also, during this work, a sufficient amount of earth and sand can be obtained by first driving the vehicle body with the transmission gear shifted down to a low-speed gear such as 1st speed, and applying a large rushing force to the loader bucket that thrusts into the pile of earth and sand. Scoop up. Thereafter, there is a demand for smoothly transporting the scooped earth and sand by shifting up the transmission gear to a high-speed gear of 2 or more and running the vehicle body at a relatively high speed. In this case, since the operator operates the steering wheel with the left hand, it is difficult to perform these speed change operations with the speed change lever located at the left hand side.

  For this reason, in the prior art, for example, a shift switch is provided on the grip of one of the boom operation lever and the bucket operation lever. Thereby, at the time of the loading operation mentioned above, even if the operator operates the steering wheel with the left hand and operates the operation lever with the right hand, the shift operation can be executed by operating the shift switch with the fingertip of the right hand. I am doing so.

  In this case, in the prior art of Patent Document 2, a shift switch used for both manual shift and automatic shift is provided on the grip of the operation lever. This shift switch functions as, for example, a shift-up switch that sequentially shifts up the shift gear when the vehicle is operated at manual shift, and when the shift switch is operated at automatic shift, the shift at the time when the shift switch is operated. It functions as a hold switch that holds the gear.

  By the way, in the prior art described above, for example, a shift switch is provided on the grip of one of the boom operation lever and the bucket operation lever. However, in this case, for example, when the operator is gripping the other operation lever, if the transmission switch is operated to switch the transmission gear, or the hold switch is operated to keep the transmission gear in a certain state. These shifting operations cannot be performed unless the hand is released from the lever being operated and the lever is changed.

  For this reason, in the prior art, when the operator performs a shift operation, the operation of the boom or bucket is interrupted by changing the operation lever, or the shift gear cannot be switched at a desired timing by giving priority to these operations. In some cases, the operability of the operator deteriorates and the work efficiency decreases.

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to smoothly perform a speed change operation together with these operations even when a work device is operated while steering a vehicle body, for example. Therefore, it is an object of the present invention to provide an operation device for a construction machine that can maintain good operability for an operator and improve work efficiency.

  In order to solve the above-described problems, the present invention provides a driver's seat provided on a vehicle body of a construction machine, a steering device that is disposed on the front side of the driver's seat and that is seated on the driver's seat, and steers the vehicle body, A shift lever that is arranged in the vicinity of the steering device and shifts up and down the shift gear when the vehicle travels, and a manual shift and shift gear that switches the shift gear manually according to the driving state of the vehicle body. A shift selection switch for selecting any one of the shift control and the automatic shift to be switched, a console disposed on the side of the driver's seat, and an upper surface of the console that can be operated forward and backward. The present invention is applied to an operation operating device for a construction machine comprising an operation lever for operating a working device provided on the vehicle body.

The feature of the configuration adopted by the invention of claim 1 is that the shift gear is shifted down on the upper surface of the console when the vehicle body is operated at manual shift according to the selection of the shift selection switch. A shift-down switch, a shift-up switch that shifts up the transmission gear when the vehicle is operating at manual shift, and a shift lock that locks the shift gear switching operation when the vehicle is operating at automatic transmission Three types of switches comprising switches are provided , and the working device is configured to move downward when the work operation lever is operated to the front side and to move upward when the work operation lever is operated to the rear side, downshift switch is disposed on the front side of the working lever, this said shift-up switch which is configured you arranged on the side of the working lever Located in.

According to the second aspect of the present invention , the shift gear is shifted down on the upper surface of the console according to the selection of the shift selection switch when the vehicle body is operated at manual shift. A shift-down switch , a shift-up switch that shifts up the transmission gear when the vehicle is operating at manual shift, and a shift lock that locks the shift gear switching operation when the vehicle is operating at automatic transmission three switches consisting of a switch is provided, wherein the shift lock switch Ru near that where the structure disposed on the side of the working lever.

According to a third aspect of the present invention , the shift gear is shifted down on the upper surface of the console when the vehicle body is operated at manual shift according to the selection of the shift selection switch. A shift-down switch, a shift-up switch that shifts up the transmission gear when the vehicle is operating at manual shift, and a shift lock that locks the shift gear switching operation when the vehicle is operating at automatic transmission There are provided three types of switches, and the shift down switch is disposed on the front side of the work operation lever, and another shift down switch and a shift up switch are provided on the side of the work operation lever. Ru near that where the structure Ru provided the switch is switched to the integral formed downshift position and a shift-up position.

According to a fourth aspect of the present invention , the shift gear is shifted down on the upper surface of the console according to the selection of the shift selection switch when the vehicle body is operated at manual shift. A shift-down switch, a shift-up switch that shifts up the transmission gear when the vehicle is operating at manual shift, and a shift lock that locks the shift gear switching operation when the vehicle is operating at automatic transmission Three types of switches are provided, and the shift down switch and the shift up switch are integrally formed as a changeover switch that can be switched between a shift down position and a shift up position . Ru near that where the structure disposed laterally.

Further, according to the fifth aspect of the present invention , the shift gear is shifted down when the vehicle body is operated at manual shift according to the selection of the shift selection switch on the upper surface of the console. A shift-down switch, a shift-up switch that shifts up the transmission gear when the vehicle is operating at manual shift, and a shift lock that locks the shift gear switching operation when the vehicle is operating at automatic transmission There are provided three types of switches including switches, and the work operation lever includes two operation levers that are arranged side by side in the left and right directions and operate a plurality of actuators constituting the work device, and the shift down switch is disposed on the front side located between the two operating levers, the shift-up switch side of one of the operating levers of the respective operating levers Ru near that is configured to be placed.

According to the invention of claim 6, the console is provided with a wrist rest that is located on the side of the driver's seat and on which a wrist is placed by an operator, and a lever operating lever that is disposed on the front side of the wrist rest. a Department provided, the shift down switch, upshift switch and shift lock switch has a configuration you provided on the lever mounting portion.

According to the invention of claim 7, the lever mounting portion is formed as an inclined surface portion that extends downward from the position of the wrist rest and is inclined downward .

According to the first aspect of the present invention, three types of switches including a shift down switch, a shift up switch, and a shift lock switch are provided on the upper surface of the console, and the work device operates the work operation lever forward. It is configured to move downward when the work operation lever is operated to the rear side, the shift down switch is disposed on the front side of the work operation lever, and the shift up switch is provided for the work operation. since a configuration you disposed laterally of the lever, the operator of the construction machine, for example by operating the steering device with one hand, even when operating the work operating lever with the other hand, the operating lever Each of the three types of switches can be easily operated by the fingertips of the gripping hand. As a result, even if the operator steers the vehicle body and both hands are closed by using the work device, the operator only needs to extend the fingertips of the hand on the console while performing these operations. It is possible to smoothly shift down and up the transmission gear.

  In addition, the operator can lock the shift gear (shift lock) by a simple operation of simply extending the fingertip even during operation at automatic shift. As a result, the transmission gear can be fixed at a desired gear position with a single touch in accordance with the traveling state of the vehicle, the state of the operation, etc. while operating the operation lever to prevent unnecessary switching of the transmission gear. be able to.

  As a result, for example, even when a plurality of operation levers are operated together, there is no need to shift the operation levers as in the prior art, and shifting such as downshifting, upshifting, and shifting lock can be performed. It is possible to prevent the operation timing from being restricted according to the operation state of the work operation lever. Therefore, the operability of the operator can be maintained well, and the work using the work device can be performed efficiently.

In addition, the work device is configured to move upward and downward when the work operation lever is operated to the front and rear sides, the shift down switch is disposed on the front side of the work operation lever, and the shift up switch is used for work. It is configured to be disposed on the side of the operation lever. In this case, for example, when the working device is rocked downward or dumped, the operator's hand moves to the front side together with the operation lever, so the fingertip of the hand is naturally extended toward the front side at this position. it allows you to operate the shift-down switch easily.

Thus, for example, when the working device is lowered near the ground and brought into contact with an object such as earth and sand, the transmission gear can be switched to the low speed side to increase the driving force of the vehicle body. For this reason, the working device can be brought into contact with the object with a large force or can be raised, and the working efficiency can be improved.

You can also upwardly Osshado the work device, when cloud before along with the operator's hand work operating lever, it is in the rear direction of the intermediate position (neutral position), and to the rear side than this since moving, by extending naturally toward the side of the thumb or the like at this position, it is possible to operate the shift-up switch easily.

Body Thus, for example, sometimes the work apparatus scooped earth and sand or the like is moved upward, it is Rukoto is run at a relatively high speed of the vehicle body to switch the transmission gear to the high speed side, toward the place or the like down the sediment can it to smoothly move.

According to the second aspect of the present invention, since the shift lock switch is arranged on the side of the work operation lever , when operating the work device while operating the vehicle body at automatic shift, for example, the operator The shift lock switch can be easily operated by naturally extending the thumb or the like of the hand holding the operation lever to the side.

According to the invention of claim 3, the downshift switch is disposed on the front side of the work operation lever, and the other downshift switch and the upshift switch are integrated on the side of the work operation lever. Since the switch is provided, the operator can simply switch the thumb etc. to the side, regardless of whether the operating lever is in the front position, neutral position, or rear position. The switch can be easily operated .

Thereby, for example, even if the operator does not operate the operation lever to the front side, the transmission gear can be shifted down smoothly, and the transmission operation can be performed smoothly. In addition, when the operator downshifts the transmission gear, for example , the front shift down switch and the side change switch can be used properly in accordance with the operation state (lever position) of the work operation lever . Therefore, even when there are individual differences in the operation methods by the operator, it can be adapted to various operation methods may Rukoto enhance the operability.

Further, by adopting the changeover switch can be arranged to switch to compact the upper surface of the console, it is possible simplify the structure of the console or the switch, it is possible to reduce the number of parts associated with the switch.

According to the invention of claim 4, the shift down switch and the shift up switch are integrally formed as a changeover switch, and the changeover switch is arranged on the side of the operation lever. The change-over switch can be switched to the shift-down position or the shift-up position, whereby a speed change operation can be performed .

As a result, on the upper surface of the console , for example, a shift down switch and a shift up switch can be compactly arranged as one changeover switch , the structure of the console and the switch can be simplified, and the number of parts related to the switch can be reduced. be able to. In addition, since the selector switch is arranged on the side of the operation lever, the operator can turn the thumb or the like to the side regardless of whether the operation lever is in the front position, neutral position, or rear position. The changeover switch can be easily operated by simply extending it naturally.

According to a fifth aspect of the present invention, the downshift switch is located between the two operation levers and disposed on the front side thereof, and the upshift switch is disposed on the side of one of the operation levers. Since the arrangement is made, the operator can easily perform the switch operation regardless of the position of the operation lever, for example, by extending the fingertip to the front side or the side while holding the operation lever. Therefore, regardless of which switch is operated, the operator does not need to change the operation lever, and the transmission gear can be switched smoothly .

According to a sixth aspect of the present invention, the console is provided with a lever mounting portion located on the front side of the wrist rest, and the lever mounting portion together with the operation lever is provided with a shift down switch and a shift up switch. Since the shift lock switch is arranged , the operator can place the wrist on the wrist rest and fix it stably. In this state, the operator can operate the operation lever and the three types of switches located on the front side of the wrist rest. It can be operated with an easy posture. Thus, for example, even in the case of operating the operation lever for a long time, it is Rukoto suppress fatigue and the like of the operator.

Further, according to the invention of claim 7 , since the lever mounting portion is configured as an inclined surface portion that extends downward from the position of the wrist rest and is inclined downward, when the operator places the wrist on the wrist rest, Devices such as an operation lever , a downshift switch, and an upshift switch are arranged on the obliquely lower front side . Therefore, the operator is in a state of extending the wrist natural angle can be operated smoothly these devices can Rukoto enhance the operability.

  Hereinafter, a construction machine operation device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, FIGS. 1 to 12 show a first embodiment, in this embodiment, a hydraulic excavator driving operation device is applied, hydraulic cranes, as a construction machine such as a wheel loader, the cab specifications Wheel Ruroda Is described as an example.

  In the figure, reference numeral 1 denotes a wheel loader. The wheel loader 1 includes a rear vehicle body 2, a front vehicle body 3 that is connected to the front side of the rear vehicle body 2 so as to be pivotable leftward and rightward, and a work device 8 described later. And is roughly composed.

  Here, the rear vehicle body 2 has a cab 4 positioned on the front side thereof and a driver's seat 12 described later on a floor plate 4A (see FIG. 2), and an engine described later positioned on the rear side of the cab 4. 9, an exterior cover 5 that covers a hydraulic pump (not shown) and the like, and left and right rear wheels 6 that run the wheel loader 1 are provided. The front vehicle body 3 rotates left and right with respect to the rear vehicle body 2 by operating a steering wheel 13 to be described later, and changes the traveling direction of the wheel loader 1. Left and right front wheels 7 are provided on the side.

  Reference numeral 8 denotes a working device provided on the front side of the front vehicle body 3 so as to be able to be lifted and lowered. The working device 8 is attached to the front vehicle body 3 so as to be able to be lifted and lowered, and to a front end portion of the boom 8A. The loader bucket 8B is movably mounted, the boom cylinder 8C moves the boom 8A up and down, and the bucket cylinder 8D rotates the loader bucket 8B upward and downward (dump or cloud). And actuators, such as each cylinder 8C and 8D, are operated using the two operation levers 20 and 21 mentioned later by the operator of a vehicle.

  Reference numeral 9 denotes an engine mounted on the rear vehicle body 2. The engine 9 has a transmission 10 connected to its output side as shown in FIG. 7, and rotationally drives the rear wheels 6 via the transmission 10 and the like. Further, the engine 9 operates the cylinders 8C and 8D of the work device 8 by driving a hydraulic pump.

  Reference numeral 10 denotes a transmission connected to the output side of the engine 9. The transmission 10 decelerates the rotation of the engine 9 and transmits it to the rear wheels 6. The reduction ratio (gear ratio) at this time is different, for example, 4 A stage transmission gear (not shown) is provided. The transmission gear is switched to a gear position of any one of the first speed, the second speed, the third speed, and the fourth speed by a mission control valve 26 described later.

  Here, as a transmission gear switching method, either one of manual shift and automatic shift control is selected according to the setting content of a shift selection switch 17 described later. In this case, the manual shift is a shift control in which the shift gear is manually switched by operating a shift lever 16 and switches 22, 23, which will be described later. The automatic shift is a shift control in which a shift gear is automatically switched by a controller 25 (to be described later) according to, for example, the driving state of the vehicle body, the operation contents of the shift lever 16 and the shift lock switch 24, and the like.

  Further, the relationship between the driving state of the vehicle body and the transmission gear will be described. When the rotation is transmitted from the engine 9 to the rear wheel 6 via the transmission 10, the rotational speed increases sequentially from the first speed to the fourth speed. Rotational torque decreases sequentially. For this reason, for example, at the first speed, the rear wheel 6 is driven in a low rotation and high torque state, and a large driving force can be obtained even at a low speed. In the fourth speed, the rear wheel 6 is driven in a high rotation / low torque state, and the vehicle body can obtain a high traveling speed even if the driving force is small.

  Next, 11 is a driving operation device provided in the cab 4, and the driving operation device 11 is a system in which an operation system for driving the wheel loader 1 is gathered around the operator as shown in FIGS. Driver seat 12, steering wheel 13, pedals 14 and 15, shift lever 16, shift selection switch 17, console 18, operation levers 20 and 21, shift down switch 22, shift up switch 23, shift lock switch, which will be described later. 24, a controller 25, and the like.

  A driver's seat 12 is located near the rear side in the cab 4 and is disposed on the floor plate 4A. The driver's seat 12 is seated when the operator operates the wheel loader 1, and the front side thereof. A steering wheel 13 which will be described later is attached.

  Reference numeral 13 denotes a steering wheel as a steering device disposed on the front side of the driver's seat 12, and the steering wheel 13 is rotated by gripping and rotating the front vehicle body 3 in the left and right directions by the operator. The vehicle body is steered leftward or rightward. An accelerator pedal 14 and a brake pedal 15 are provided below the steering wheel 13 on the floor plate 4A of the cab 4.

  Reference numeral 16 denotes a speed change lever disposed in the vicinity of the mounting portion of the steering wheel 13, and the speed change lever 16 is switched between a plurality of switching positions by an operator. To the operator's left hand. Then, for example, when the operator performs normal travel without using the work device 8, the operator operates the shift lever 16 with the left hand as needed while grasping the steering wheel 13 to steer the vehicle body, Is switched.

  In this case, when the vehicle body is operated at manual shift, the shift gear is shifted up from the 1st speed to the 4th speed and downshifted from the 4th speed to the 1st speed according to the switching position of the shift lever 16. be able to. These gear shifting operations can also be performed by a shift down switch 22 and a shift up switch 23 described later.

  Further, the maximum gear position that can be switched by manual shift and automatic shift while driving the vehicle body is set as the shift position of the shift lever 16, for example. That is, for example, when the speed change lever 16 is in the 3rd speed position, the transmission gear can be switched only between the 1st and 3rd speeds by either manual shift or automatic shift, and is not shifted up to the 4th speed. .

  Reference numeral 17 denotes a shift selection switch provided on, for example, an operation panel on the front side of the driver's seat 12, and the shift selection switch 17 is operated by an operator to perform manual shift or automatic shift as shift control of the transmission 10. Either one is selected.

  Reference numeral 18 denotes a console which is positioned on the right side of the driver's seat 12 and is erected on the floor plate 4A of the cab 4. The console 18 is an elongated box extending in the front and rear directions of the vehicle body as shown in FIGS. It is formed into a shape, and is composed of a front side, a rear side, a left side, a right side portion 18A, and an upper surface portion 18B. In this case, the rear portion of the upper surface portion 18B is formed so as to extend substantially horizontally, and a wrist rest 19 on which the operator places and fixes the wrist (the portion beyond the elbow) is provided.

  The front portion of the upper surface portion 18B is a lever mounting portion 18C to which devices such as operation levers 20, 21 and switches 22, 23, 24 described later are mounted. The lever mounting portion 18C is located from the position of the wrist rest 19. It is formed as an inclined surface portion extending downward and inclined downward. In this case, the inclination angle of the lever mounting portion 18C is determined so that each device is arranged in front of the wrist or diagonally below the front with the wrist placed on the wrist rest 19, and the wrist is extended to a natural angle. The device is set to operate.

  Reference numeral 20 denotes, for example, a boom operating lever as a working lever provided at the right side of the lever mounting portion 18C of the console 18, and the boom operating lever 20 is operated by operating it forward and backward by the operator. The boom cylinder 8C of the device 8 is expanded and contracted to move the boom 8A up and down.

  Here, the boom operation lever 20 is pivotally attached to the inside of the console 18 via an attachment pin (not shown) in the same manner as the bucket operation lever 21. Further, the distal end side of the operation lever 20 protrudes upward from the lever mounting portion 18C of the console 18, and for example, a spherical grip 20A is attached to the protruding end portion. When the boom control lever 20 is operated, as shown in FIG. 9 to be described later, the operator holds the grip 20A with the palm of the hand from above, and moves the control lever 20 forward and backward with the mounting pin as the center. Tilt operation.

  Accordingly, the operation lever 20 rotates between the front position 20 ′ and the rear position 20 ″ with reference to the neutral position indicated by the solid line in FIG. 5. In this case, the operation lever 20 is moved to the front position 20 ′. When the operation lever 20 is operated toward the rear position 20 ″, the boom 8A is indicated by a solid line. Thus, it is configured to be lifted upward.

  Reference numeral 21 denotes, for example, a bucket operating lever as another working lever provided on the left side of the lever mounting portion 18C of the console 18, and the bucket operating lever 21 is operated forward and backward by the operator, The loader bucket 8B is dumped or clouded by expanding and contracting the eight bucket cylinders 8D.

  Here, the bucket operation lever 21 is arranged side by side with the boom operation lever 20 in the left and right directions, and is formed with substantially the same shape and structure as that. A spherical grip 21A is attached so as to be wrapped from above. The operation lever 21 has a base end side rotatably attached to the inside of the console 18 via an attachment pin 21B (see FIG. 6).

  Then, the bucket operating lever 21 is tilted forward and backward between the front position 21 ′ and the rear position 21 ″ with reference to the neutral position indicated by the solid line in FIG. When the operation lever 21 is operated toward the front position 21 ', the loader bucket 8B dumps downward as indicated by the phantom line in FIG. 1, and the operation lever 21 is operated toward the rear position 21 ". Sometimes, the loader bucket 8B is clouded upward as indicated by the solid line.

  A shift down switch 22 is provided, for example, at the front side position of the lever mounting portion 18C of the console 18. The shift down switch 22 is, for example, shown in FIG. When the vehicle body is driven at manual shift, the right fingertip pushes the push operation, and the transmission gear of the transmission 10 is sequentially shifted down from the fourth speed to the first speed.

  Here, as shown in FIGS. 7 and 8, the shift down switch 22 is composed of, for example, an automatic return type (momentary type) push button switch or the like, and is held in the closed (ON) state only when the operator is pressing. When the operator removes his / her finger, the open (OFF) state is restored.

  Further, the shift down switch 22 is disposed on the front side of the operation levers 20 and 21 as shown in FIG. Thereby, when the operator is tilting the operation levers 20 and 21 toward the front positions 20 ′ and 21 ′ (that is, the boom 8A of the work device 8 is rocked or the loader bucket 8B is dumped). In other words, the shift-down switch 22 can be easily operated by extending the index finger, middle finger, etc. of the right hand forward.

  Further, the shift down switch 22 is arranged in a rectangular range A indicated by a one-dot chain line in FIG. 5 so that it can be easily operated with the fingertips of the hands enclosing the operation levers 20 and 21. This range A means that the switch 22 is within the width W between the right end of the operation lever 20 and the left end of the operation lever 21 with respect to the left and right directions, and the switch 22 is in the front position 20 ′, It is arranged in front of the center of 21 ', and is defined as a region in which the distance in the front and rear direction between this center and the switch 22 falls within a dimension Y of about 50 mm, for example. That is, the range A corresponds to a position on the front side of one of the two operation levers 20 and 21 or on the front side between the operation levers 20 and 21.

  Further, as shown in FIG. 6, the downshift switch 22 is arranged in a predetermined range H in consideration of operability in the upward and downward directions. This range H is, for example, the operation lever 20 in the neutral position, 21 is defined as a region that fits between the upper end of 21 and the center of rotation (such as mounting pin 21B).

  23 is a shift-up switch provided at the left side of the lever mounting portion 18C of the console 18, for example. The shift-up switch 23 is, for example, in accordance with the selection of the shift selection switch 17, as shown in FIG. When the vehicle body is driven at manual shift, the push operation is performed with the fingertip of the right hand, and the transmission gear of the transmission 10 is sequentially shifted up from the first speed to the fourth speed. In this case, the upshift switch 23 is configured by, for example, an automatic return type push button switch or the like in substantially the same manner as the downshift switch 22.

  Further, as shown in FIG. 5, for example, the upshift switch 23 is disposed at a position on the left side with respect to the neutral position of the bucket operation lever 21 or slightly behind the position. As a result, when the operator holds the operation levers 20 and 21 in the neutral position, or tilts them closer to the rear positions 20 ″ and 21 ″ (that is, the boom 8A of the work device 8 is lifted up). When the loader bucket 8B is clouded), the upshift switch 23 can be easily operated, for example, by extending the thumb of the right hand to the side.

  Further, the upshift switch 23 is disposed within a rectangular range B indicated by a one-dot chain line in FIG. 5 so that it can be easily operated with the fingertips of the hands enclosing the operation levers 20 and 21. This range B means that the distance in the left and right directions between the center of the operation lever 20 (or the operation lever 21) and the switch 23 is within a dimension X of about 100 mm, for example, and the front positions 20 ′ and 21 ′ of each lever. The distance in the front and rear direction between the center of (or the rear position 20 ″, 21 ″) and the switch 23 is defined as an area within a dimension Y of about 50 mm, for example. Further, the upshift switch 23 is disposed in the above-described range H with respect to the upward and downward directions.

  A shift lock switch 24 is provided in the lever mounting portion 18C of the console 18 together with the switches 22 and 23. The shift lock switch 24 automatically shifts the vehicle body according to the selection of the shift selection switch 17, for example. When the vehicle is being driven, a push operation is performed with the fingertip of the right hand, and the transmission gear of the transmission 10 is locked (shift-locked) at the gear position when the shift lock switch 24 is operated.

  Here, the shift lock switch 24 is composed of, for example, an automatic return type push button switch or the like, almost the same as the upshift switch 23, and is disposed at a position that falls within the horizontal range B and the vertical range H, respectively. As a result, it is easy to operate with the fingertips of the hands enclosing the operation levers 20 and 21.

In a state in which by operating the shift lock switch 24 locks the gear, for example, even the vehicle traveling speed or the like is changed, the switching operation of the speed change gear is restricted, the speed change gear is maintained in a fixed gear position . In the shift lock state, when any one of the shift lever 16, the shift down switch 22 or the shift up switch 23 is operated, the shift lock state is released and the normal automatic shift control is restored. .

  As described above, in this embodiment, three types of switches 22, 23, and 24 for shifting operation are provided on the lever mounting portion 18C of the console 18 on which the operation levers 20 and 21 are disposed. For this reason, the operator operates the steering wheel 13 with the left hand and operates the operation levers 20 and 21 with the right hand, for example, while driving the vehicle body at manual speed change, while performing these operations. The shifting operation can be smoothly performed by the downshift switch 22 and the upshifting switch 23 only by moving the fingertip in a natural direction.

  For example, when the operator operates the vehicle body 8 while operating the vehicle body at an automatic speed change, the shift lock switch 24 is set by a natural operation of extending the fingertips from the positions of the operation levers 20 and 21 to the side. It can be easily operated, whereby the transmission gear can be locked at a desired gear position with one touch.

  At this time, it is possible to prevent the need to change the operating lever as in the prior art, and to restrict the timing of the speed change operation according to the operating state of the lever. Can be done well.

  On the other hand, 25 is a shift control controller mounted on the wheel loader 1. On the input side of the controller 25, as shown in FIG. 7, a shift lever 16, a shift selection switch 17, a shift down switch 22, and a shift up switch are provided. A switch 23, a shift lock switch 24, and the like are connected. Further, an electromagnetic mission control valve 26 for switching the transmission gear of the transmission 10 is connected to the output side of the controller 25.

  Then, the controller 25 outputs a command signal to the mission control valve 26 according to the operation state of the transmission lever 16 and the switches 17, 22, 23, 24, and the transmission gear is shifted down and up through the control valve 26. Alternatively, a shift lock is performed.

  The wheel loader 1 according to the present embodiment has the above-described configuration. Next, the shift control of the controller 25 will be described with reference to FIG. During the operation of the controller 25, steps 1 to 15 in FIG. 12 are repeatedly executed.

  First, an operator seated in the driver's seat 12 in the cab 4 selects a manual shift or an automatic shift with the shift selection switch 17, and then operates the steering wheel 13 while depressing the accelerator pedal 14 and the brake pedal 15. By doing so, the vehicle body can be driven.

  For example, when the operator selects manual shift, it is determined as “YES” in step 1, so manual shift control is performed in step 2. In this manual shift control, it is determined in step 3 whether or not the shift lever 16 has been operated. If "YES" is determined, the shift gear is switched in accordance with the operation of the shift lever 16 in step 4 to be described later. Return at 15.

  Thus, for example, when the operator operates the vehicle body by manual shift without using the work device 8, the operator can smoothly perform the shift operation with the shift lever 16 in the vicinity while operating the steering wheel 13 with both hands. it can.

  If “NO” is determined in the step 3, it is determined whether or not the downshift switch 22 or the upshift switch 23 is operated in a step 5. If “YES” is determined in step 5, the transmission gear is switched in accordance with the operation content of the switches 22 and 23 in step 4, and the process returns in step 15 described later. If “NO” is determined in the step 5, the process directly returns in the step 15.

  As a result, when the work device 8 is used while the vehicle body is driven, for example, the steering wheel 13 is operated with the left hand, the operation levers 20 and 21 are operated with the right hand, and the switches 22 and 23 are operated with the fingertips of the right hand. Thus, the speed change operation can be performed smoothly.

  On the other hand, if the operator selects automatic shift using the shift selection switch 17, the determination at step 1 is "NO", so that the process proceeds to step 6 to perform automatic shift control. In this automatic transmission control, for example, the operator operates the steering wheel 13 with the left hand, operates the operation levers 20 and 21 with the right hand, and operates the shift lock switch 24 with the fingertip of the right hand as necessary.

In step 7, it is determined whether or not the shift lock is released (lockable again). If “YES” is determined, whether or not the shift lock switch 24 is operated in step 8. Determine whether. If “YES” is determined in the step 8, the transmission gear is locked in the step 9, and the process returns in the step 15. If “NO” is determined in step 8, normal automatic shift control is performed in step 12 described later, and the process returns in step 15.

  As a result, the operator can automatically switch the transmission gear by automatic shifting at all times. For example, when a shift lock is required according to the traveling state of the vehicle body, the state of the working device 8, etc., the transmission gear can be fixed at an appropriate gear position by operating the shift lock switch 24, and the transmission gear is unnecessary. Switching can be prevented.

  If “NO” is determined in step 7, the shift lock state has already been established, and therefore it is determined in step 10 whether or not the speed change lever 16 has been operated. If “YES” is determined in the step 10, the shift lock state is released in a step 11, and the normal automatic shift control is restored in a step 12.

  If “NO” is determined in the step 10, it is determined whether or not any of the switches 22 and 23 is operated in a step 13. If “YES” is determined in step 13, the shift lock state is released in step 11, and normal automatic shift control is restored in step 12. If it is determined “NO” in step 13, the shift lock state is maintained in step 14, and the process returns in step 15.

  Thus, the operator can quickly release the shift lock by operating the shift lever 16 or each of the switches 22 and 23 when the shift gear is no longer required to be locked, and the normal automatic shift control can be performed by a simple operation. Can be returned.

  Next, an operation performed with the right hand when the operator operates the work apparatus 8 while operating the vehicle body at manual shift will be described.

  First, as shown in FIG. 9, the operator can place the right wrist on the wrist rest 19 and hold it with the palm so as to wrap the grips 20A and 21A of the operation levers 20 and 21. 21 can be operated smoothly forward and backward.

  Moreover, when working using the wheel loader 1, for example, a mountain such as earth and sand piled up on the ground may be scooped up and loaded on a truck bed. In such work, the operator first swings the boom 8A of the work device 8, dumps the loader bucket 8B, and advances the vehicle body in this state, as indicated by a virtual line in FIG. The loader bucket 8B is inserted into a pile of earth and sand stacked on the ground.

  At this time, the operator wants to increase the driving force of the vehicle body by, for example, switching the transmission gear to a low-speed gear such as the first speed, and to give a sufficient rushing force to the loader bucket 8B, but is steering the vehicle body with the left hand. Therefore, the left shift lever 16 cannot be used.

  However, as shown in FIG. 10, the operator's right hand tilts the operation levers 20 and 21 to the front positions 20 ′ and 21 ′ in order to swing (dump) the work device 8, so at this position. The shift down switch 22 can be smoothly operated by a simple operation of extending the fingertips such as the index finger and the middle finger forward. Thus, the operator can switch the transmission gear to the low speed side to give a sufficient rushing force to the loader bucket 8B.

  Further, after the loader bucket 8B is plunged into the pile of earth and sand, the operation levers 20 and 21 are tilted toward the rear positions 20 ″ and 21 ″ so that the loader bucket 8B is moved as shown by the solid line in FIG. The bucket 8B can be clouded to scoop up earth and sand, and the boom 8A can be lifted.

  At this time, as shown in FIG. 11, the operator's right hand is in the vicinity of the neutral position or the rear position 20 ″, 21 ″ together with the operation levers 20, 21, so that at this position, the fingertip of the thumb is simply extended to the left. The upshift switch 23 can be smoothly operated by a simple operation. As a result, the operator can switch the speed change gear to a high-speed gear of 2 or more speed, for example, so that the vehicle body can travel at a high speed, and can quickly reach the truck bed.

  Further, when the operator is driving the vehicle body at automatic shift, as shown by the phantom line in FIG. 11, the shift lock is performed by a natural operation of simply extending the fingertip to the left as in the case of the shift up switch 23. Can be performed smoothly.

  Thus, according to the present embodiment, the lever mounting portion 18C of the console 18 is provided with the shift down switch 22 and the shift up switch 23 that are operated at the time of manual shift, and the shift lock switch 24 that is used at the time of automatic shift. Therefore, for example, even when the operator operates the steering wheel 13 with the left hand and operates the operation levers 20 and 21 with the right hand, the operator easily operates these three types of switches 22, 23 and 24 with the fingertip of the right hand. be able to.

  This allows the operator to shift down the transmission gear by simply extending the fingertips on the console 18 while performing these operations, even when both hands are closed by using the work device 8 while steering the vehicle body. Shift up and shift lock can be performed smoothly.

  As a result, for example, even when the two operating levers 20 and 21 are operated together, there is no need to shift the operating lever as in the prior art, and the shifting operation can be performed according to the operating state of the lever. It is possible to prevent the timing from being restricted. Therefore, the operability of the operator can be maintained well, and the work using the work device 8 can be performed efficiently.

  In this case, since the downshift switch 22 is provided in front of the operation levers 20 and 21, for example, when the boom 8A of the work device 8 is swung or the load gear bucket 8B is dumped, the transmission gear is shifted down. In addition, the operator can easily operate the downshift switch 22 by simply extending the fingertip of the right hand moved to the front side together with the operation levers 20 and 21 toward the front.

  Thus, for example, when the loader bucket 8B is thrust into a mountain such as earth and sand, the transmission gear can be switched to the low speed side to increase the driving force of the vehicle body, and sufficient thrust force can be applied to the loader bucket 8B. It is possible to efficiently scoop up earth and sand.

  Further, since the upshift switch 23 is disposed on the left side of the bucket operation lever 21, the operation levers 20, 21 are any of the front position 20 ', 21', the neutral position and the rear position 20 ", 21". Even in the position, the operator can easily operate the shift-up switch 23 only by naturally extending the thumb of the right hand or the like toward the side.

  In particular, when the boom 8A of the working device 8 is lifted or the loader bucket 8B is clouded, the operator's right hand is in the neutral position together with the operation levers 20 and 21 or moved to the rear side. Therefore, the shift gear can be quickly shifted up by the shift-up switch 23 located on the side thereof.

  Thus, for example, when the loader bucket 8B scoops up earth and sand and the work apparatus is lifted, the vehicle body can be driven at a relatively high speed. Therefore, for example, the vehicle body can be smoothly moved toward the truck bed or the like, and the loading operation can be performed efficiently.

  Further, since the shift lock switch 24 is also arranged on the left side of the bucket operation lever 21 in the same manner as the shift up switch 23, the operator operates the work device 8 while operating the vehicle body at an automatic transmission. The shift lock switch 24 can be smoothly operated by a simple operation of extending the fingertip from the position of the operation lever 21 to the left side.

  Accordingly, the transmission gear can be locked at a desired gear position in accordance with the traveling state of the vehicle body, the state of the operation, etc. while operating the operation levers 20 and 21 to perform various operations. It can be done with one touch without disturbing the flow. For this reason, it is possible to prevent the vehicle driving force, travel speed, etc. from fluctuating in a situation unintended by the operator due to, for example, an accidental switching of the transmission gear by automatic transmission, and operability and work efficiency when operating at automatic transmission. Can be increased.

  Further, the console 18 is provided with a lever mounting portion 18C located on the front side of the wrist rest 19, and the operation levers 20, 21 and the switches 22, 23, 24 are disposed on the lever mounting portion 18C. The wrist can be placed on the wrist rest 19 and can be stably fixed. In this state, the operation levers 20 and 21 positioned on the front side of the wrist rest 19 can be operated in an easy posture. Thereby, for example, even when the operation levers 20 and 21 are operated for a long time, it is possible to suppress operator fatigue and the like.

  In this case, since the lever attaching portion 18C is formed as an inclined surface portion inclined toward the lower front side, when the operator places the wrist on the wrist rest 19, the operation lever 20, 21 and switches 22, 23, 24, etc. can be arranged. Thus, the operator can smoothly operate these devices with the wrist extended to a natural angle, and the operability can be further improved.

  Next, FIG. 13 and FIG. 14 show a second embodiment according to the present invention. The feature of this embodiment is that a shift down switch is arranged on the front side of a work operation lever, and other shift down switches and shifts are arranged. The change switch integrated with the up switch is arranged on the side of the operation lever. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  Reference numeral 31 denotes a driving operation device for the wheel loader 1, and the driving operation device 31 has a driver's seat, a steering wheel, an accelerator pedal, a brake pedal (all not shown), and a gear shift, as in the first embodiment. A lever 16, operation levers 20 and 21, a shift down switch 22, a shift lock switch 24, a controller 25, a console 32 and a switch 33 described later are configured.

  The console 32 is formed by front, rear, left, and right side portions 32A, an upper surface portion 32B, and a lever mounting portion 32C. However, a seesaw switch 33 (to be described later) is provided on the lever mounting portion 32 </ b> C of the console 32 together with the shift down switch 22 and the shift lock switch 24, and these are connected to the input side of the controller 25.

  Reference numeral 33 denotes a seesaw switch as a change-over switch disposed on the left side of the bucket operating lever 21, for example. The seesaw switch 33 is formed by integrating a shift-down switch and a shift-up switch. An automatic return type (momentary type) toggle switch or the like is used.

  Here, the seesaw switch 33 is disposed so as to fall within a range substantially similar to the range B described in the first embodiment. Accordingly, the operator can easily operate the seesaw switch 33 with a thumb or the like while holding the operation levers 20 and 21 so as to wrap them with palms.

  Further, the seesaw switch 33 has a shift-down operation unit 33A and a shift-up operation unit 33B, and when the operator removes his / her finger from these operation units 33A and 33B, the neutral position (a) shown in FIG. Is held in. The seesaw switch 33 is switched to the shift-down position (b) when the operator presses the shift-down operation unit 33A, and is switched to the shift-up position (c) when the operator presses the shift-up operation unit 33B. When these operations are stopped, the operation returns to the neutral position (a).

  Thereby, when the seesaw switch 33 is switched to the downshift position (b), the controller 25 shifts down the transmission gear via the mission control valve (not shown), and the seesaw switch 33 is in the upshift position ( When switched to c), the transmission gear is shifted up.

  Thus, in the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the first embodiment. In particular, in the present embodiment, the console 32 is provided with the shift down switch 22, the shift lock switch 24, and the seesaw switch 33 together.

  In this case, since the seesaw switch 33 is formed by integrating the downshift switch and the upshift switch, the operator moves the seesaw switch 33 from the neutral position (a) to the downshift position (b) or upshift position (c). By shifting to, the shifting operation can be easily performed.

  In addition, since the seesaw switch 33 is arranged on the left side of the bucket operating lever 21, the operator simply extends the thumb or the like toward the side regardless of the position of the operating lever 20, 21. The seesaw switch 33 can be easily operated. Thereby, for example, even if the operator does not operate the operation levers 20 and 21 to the front side, the transmission gear can be smoothly shifted down, and the operability can be improved.

  Therefore, when the operator downshifts the transmission gear, for example, depending on the operation state (position) of the operation levers 20 and 21, the front downshift switch 22 and the downshift operation unit 33A of the side seesaw switch 33 Even when there are individual differences in operation methods depending on the operator, it is possible to adapt to various operation methods.

  Further, by adopting the seesaw switch 33, a plurality of switches 22, 24, 33 can be compactly arranged on the lever mounting portion 32C, the structure of the console 32 and the switch 33 can be simplified, and the number of parts related to the switch 33 can be reduced. Can be reduced.

  Next, FIGS. 15 and 16 show a third embodiment according to the present invention. The feature of the present embodiment is that only a changeover switch including a seesaw switch is arranged on the side of the operation lever. It is in that. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  41 is a driving operation device of the wheel loader 1, and the driving operation device 41 has a driver seat, a steering wheel, an accelerator pedal, a brake pedal (all not shown), and a gear change, almost the same as in the first embodiment. The lever 16, the operation levers 20 and 21, the shift lock switch 24, the controller 25, a console 42 and a switch 43 described later are configured.

  The console 42 is formed by front, rear, left, and right side portions 42A, an upper surface portion 42B, and a lever mounting portion 42C. However, a seesaw switch 43 described later is provided in the lever mounting portion 42 </ b> C of the console 42, and the seesaw switch 43 is connected to the input side of the controller 25.

  43 is a seesaw switch as a changeover switch disposed on the left side of the bucket operating lever 21, for example. The seesaw switch 43 is, for example, an automatic return type toggle switch or the like, as in the second embodiment. Thus, the shift down switch and the shift up switch are integrated.

  The seesaw switch 43 includes a shift down operation unit 43A and a shift up operation unit 43B that are pushed by an operator with a fingertip, and is shifted from the neutral position (a) to the shift down position (b) shown in FIG. By shifting to either position (c), the transmission gear is shifted down or up.

  Thus, in the present embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the first and second embodiments. In particular, in the present embodiment, in addition to the shift lock switch 24, for example, one seesaw switch 43 may be disposed on the lever mounting portion 42C of the console 42. Therefore, the console 42 and the switch 43 can be formed compactly, and the structure Can be simplified.

  In each of the above-described embodiments, the switches 23, 24, 33, 43 are arranged on the left side of the bucket operating lever 21. However, the present invention is not limited to this. For example, the present invention may be configured as a modification shown in FIG. In this case, the upshift switch 23 ′ and the shift lock switch 24 ′ are disposed on the right side of the boom operation lever 20.

  In the embodiment, the two operation levers 20 and 21 are provided on the console 18 located on the right side of the driver's seat 12. However, the present invention is not limited to this. For example, a console and an operation lever may be provided on the left side of the driver's seat. The console may be provided with, for example, one operation lever or three or more operation levers.

  Furthermore, in the embodiment, the cab specification wheel loader 1 is described as an example of the construction machine. However, the present invention is not limited to this, and may be applied to a canopy specification wheel loader, for example. Further, it can be widely applied to other construction machines including a hydraulic excavator and a hydraulic crane.

1 is a front view showing a wheel loader to which a driving operation device according to a first embodiment of the present invention is applied. It is the perspective view which fractured | ruptured the upper part of the cab and saw the driving | operation operation apparatus from back. It is the perspective view which looked at the driver's seat in a cab, a console, etc. from the front. FIG. 4 is a partially enlarged perspective view of a console showing an operation lever, a shift down switch, a shift up switch, a shift lock switch and the like in FIG. 3 in an enlarged manner. It is the elements on larger scale of the console which looked at the operation lever and each switch from the upper side. It is the partial expanded side view which looked at the operation lever and each switch from the left side. It is a block diagram which shows the speed change operation system of a wheel loader. FIG. 8 is a circuit configuration diagram illustrating a shift lever, each switch, a controller, and the like in FIG. 7. It is a partial expansion perspective view which shows the state in which an operator operates the operation lever for booms, and the operation lever for buckets. It is a partial expansion perspective view which shows the state which pushes down a down switch, while an operator tilts an operation lever to the front side. It is a partial expansion perspective view which shows the state which pushes a shift up switch or a shift lock switch, while an operator tilts the operation lever back. It is a flowchart which shows the shift control of a controller. It is a partial expansion perspective view which shows the console of the driving | operation control apparatus by the 2nd Embodiment of this invention. It is a circuit block diagram which shows a transmission lever, each switch, a controller, etc. It is a partial expansion perspective view which shows the console of the driving | operation control apparatus by the 3rd Embodiment of this invention. It is a circuit block diagram which shows a transmission lever, each switch, a controller, etc. It is the elements on larger scale which show the console of the driving operation apparatus by the modification of this invention.

Explanation of symbols

1 Wheel loader (construction machine)
2 Rear body (body)
3 Front car body
4 Cab 8 Working device 8A Boom 8B Loader bucket 8C, 8D Cylinder (actuator)
11, 31, 41 Driving operation device 12 Driver's seat 13 Steering wheel (steering device)
14 Accelerator pedal dull 15 Brake pedal 16 Shift lever 17 Shift selection switch 18, 32, 42 Console 18A, 32A, 42A Side face 18B, 32B, 42B Top face 18C, 32C, 42C Lever mounting part 19 Wrist rest 20 Boom operation Lever (operating lever for work)
20A, 21A Grip 21 Bucket control lever (work control lever)
21B Mounting pin 22 Shift down switch 23, 23 'Shift up switch 24, 24' Shift lock switch 25 Controller 26 Mission control valve 33, 43 Seesaw switch (switch)
33A, 43A Shift-down operation unit 33B, 43B Shift-up operation unit

Claims (7)

A driver's seat provided on the vehicle body of the construction machine, a steering device that is disposed on the front side of the driver's seat and an operator seated on the driver's seat steers the vehicle body, and is disposed in the vicinity of the steering device so that the vehicle body travels. One of a shift lever that sometimes shifts up and down the shift gear, a manual shift that manually switches the shift gear, and an automatic shift that automatically switches the shift gear according to the driving state of the vehicle body A shift selection switch for selecting the shift control of the vehicle, a console disposed on the side of the driver's seat, and a work device provided on the vehicle body that can be operated forward and backward on the upper surface of the console. In a construction machine operation control device comprising a work control lever for operating
A shift-down switch that shifts down the transmission gear when the vehicle body is operated at a manual shift according to the selection of the shift selection switch, and a manual shift of the vehicle body are also provided on the upper surface of the console. Three types of shift-up switches for shifting up the transmission gear when driving at a speed change and a shift lock switch for locking the shifting operation of the transmission gear when the vehicle body is driven at an automatic transmission. the switch is provided,
The work device is configured to move downward when the work operation lever is operated to the front side and to move upward when the work operation lever is operated to the rear side.
The shift down switch is disposed on the front side of the operation lever,
Driving operation device for a construction machine wherein the shift-up switch, characterized in that a configuration you arranged on the side of the working lever. A driver's seat provided on the vehicle body of the construction machine, a steering device that is disposed on the front side of the driver's seat and an operator seated on the driver's seat steers the vehicle body, and is disposed in the vicinity of the steering device so that the vehicle body travels. One of a shift lever that sometimes shifts up and down the shift gear, a manual shift that manually switches the shift gear, and an automatic shift that automatically switches the shift gear according to the driving state of the vehicle body A shift selection switch for selecting the shift control of the vehicle, a console disposed on the side of the driver's seat, and a work device provided on the vehicle body that can be operated forward and backward on the upper surface of the console. In a construction machine operation control device comprising a work control lever for operating
A shift-down switch that shifts down the transmission gear when the vehicle body is operated at manual shift according to the selection of the shift selection switch, and a manual shift of the vehicle body are also provided on the upper surface of the console. Three types of shift-up switches for upshifting the transmission gear when operating at a speed and a shift lock switch for locking the switching operation of the transmission gear when the vehicle body is operated at automatic transmission. Provided a switch
A construction machine driving operation device according to claim 1, wherein the shift lock switch is arranged on a side of the work operation lever. A driver's seat provided on the vehicle body of the construction machine, a steering device that is disposed on the front side of the driver's seat and an operator seated on the driver's seat steers the vehicle body, and is disposed in the vicinity of the steering device so that the vehicle body travels. One of a shift lever that sometimes shifts up and down the shift gear, a manual shift that manually switches the shift gear, and an automatic shift that automatically switches the shift gear according to the driving state of the vehicle body A shift selection switch for selecting the shift control of the vehicle, a console disposed on the side of the driver's seat, and a work device provided on the vehicle body that can be operated forward and backward on the upper surface of the console. In a construction machine operation control device comprising a work control lever for operating
A shift-down switch that shifts down the transmission gear when the vehicle body is operated at a manual shift according to the selection of the shift selection switch, and a manual shift of the vehicle body are also provided on the upper surface of the console. Three types of shift-up switches for shifting up the transmission gear when driving at a speed change and a shift lock switch for locking the shifting operation of the transmission gear when the vehicle body is driven at an automatic transmission. Provided a switch
The shift down switch is disposed on the front side of the operation lever ,
That on the side of the front Symbol working lever, where the structure Ru provided the switch is switched to another shift-down switch is formed integrally with said shift-up switch and a shift-down position and the shift-up position A construction machine operation control device. A driver's seat provided on the vehicle body of the construction machine, a steering device that is disposed on the front side of the driver's seat and an operator seated on the driver's seat steers the vehicle body, and is disposed in the vicinity of the steering device so that the vehicle body travels. One of a shift lever that sometimes shifts up and down the shift gear, a manual shift that manually switches the shift gear, and an automatic shift that automatically switches the shift gear according to the driving state of the vehicle body A shift selection switch for selecting the shift control of the vehicle, a console disposed on the side of the driver's seat, and a work device provided on the vehicle body that can be operated forward and backward on the upper surface of the console. In a construction machine operation control device comprising a work control lever for operating
A shift-down switch that shifts down the transmission gear when the vehicle body is operated at a manual shift according to the selection of the shift selection switch, and a manual shift of the vehicle body are also provided on the upper surface of the console. Three types of shift-up switches for shifting up the transmission gear when driving at a speed change and a shift lock switch for locking the shifting operation of the transmission gear when the vehicle body is driven at an automatic transmission. Provided a switch
The shift down switch and the shift up switch are integrally formed as a changeover switch that can be switched between a shift down position and a shift up position ,
Driving operation device for a construction machine the selector switch, characterized in that the structure disposed on the side of the working lever. A driver's seat provided on the vehicle body of the construction machine, a steering device that is disposed on the front side of the driver's seat and an operator seated on the driver's seat steers the vehicle body, and is disposed in the vicinity of the steering device so that the vehicle body travels. One of a shift lever that sometimes shifts up and down the shift gear, a manual shift that manually switches the shift gear, and an automatic shift that automatically switches the shift gear according to the driving state of the vehicle body A shift selection switch for selecting the shift control of the vehicle, a console disposed on the side of the driver's seat, and a work device provided on the vehicle body that can be operated forward and backward on the upper surface of the console. In a construction machine operation control device comprising a work control lever for operating
A shift-down switch that shifts down the transmission gear when the vehicle body is operated at a manual shift according to the selection of the shift selection switch, and a manual shift of the vehicle body are also provided on the upper surface of the console. Three types of shift-up switches for shifting up the transmission gear when driving at a speed change and a shift lock switch for locking the shifting operation of the transmission gear when the vehicle body is driven at an automatic transmission. Provided a switch
The operation lever for work is composed of two operation levers that are arranged side by side in the left and right directions and operate a plurality of actuators constituting the work device ,
Before SL downshift switch disposed on a front-side located between the two operating levers,
Before SL upshift switch the driving operation device for a construction machine characterized by being configured to be disposed on the side of one of the operating lever of the operating levers. The console is provided with a wrist rest on the side of the driver's seat on which an operator puts his wrist, and a lever mounting portion on the front side of the wrist rest to which the operation lever is attached. 6. The operation operating device for a construction machine according to claim 1 , wherein a down switch, a shift up switch, and a shift lock switch are disposed in the lever mounting portion. The operation operating device for a construction machine according to claim 6 , wherein the lever attachment portion is formed as an inclined surface portion that extends forward from the position of the wrist rest and is inclined downward.

Images