JP4471749B2 - Industrial vehicle driving operation device and driving control device - Google Patents

Description

  According to the present invention, in an industrial vehicle, a single operation lever that can be tilted in two directions intersecting each other, the first operation for causing the action portion to move substantially vertically in the in-vehicle work device, and the action portion in the in-vehicle work device. The present invention relates to a driving operation device for controlling a second operation that moves substantially in the front-rear direction, or forward and backward movement of a vehicle, and a driving control device that includes the driving operation device.

As this type of driving operation device, there is one disclosed in Patent Document 1. This device is provided on a backhoe that supports a swivel base on a traveling machine base, and includes a swivel base, a boom that tilts in a substantially vertical direction with respect to the swivel base, and an arm that tilts in a substantially vertical direction with respect to the boom. The bucket that tilts substantially vertically with respect to the arm is controlled independently. In this device, operation levers that can be tilted in two intersecting directions are provided in operation boxes provided on the left and right sides of the driver's seat, respectively. That is, each operation lever is tilted from the neutral position in the vehicle front-rear direction and the vehicle left-right direction. Then, the right operating lever is tilted in the vehicle left-right direction to turn the swivel, and the operating lever is tilted in the vehicle front-rear direction to cause the boom to tilt up and down. Further, the arm is tilted up and down by tilting the left operation lever in the vehicle left-right direction, and the bucket tilts up and down by tilting the operation lever in the vehicle front-rear direction.
Japanese Utility Model Publication No. 4-15660

  By the way, each operation lever in the above-mentioned device is provided with a substantially spherical gripping portion at the tip thereof, and is configured such that the driver grips this gripping portion with the right hand or the left hand. At this time, the driver grips the grip portion with the right hand or the left hand with the palm facing downward, and tilts the operation lever in the vehicle front-rear direction or the vehicle left-right direction. Therefore, when the operation lever is tilted in the vehicle front-rear direction or the vehicle left-right direction, the right hand or the left hand usually remains facing downward.

  For this reason, when the arm is operated to tilt up and down by tilting the operating lever in the left-right direction of the vehicle with the left hand, the operating direction of the operating lever and the operating direction of the arm are not related at all. Therefore, as before, I became accustomed to a vehicle having a configuration in which the swivel turning operation, the boom up-and-down operation, the arm up-and-down operation, and the bucket up-and-down operation are performed by operating the independent operation levers. The driver could not easily get used to a vehicle in which one operation lever is tilted in two directions intersecting to perform two different operations.

  The present invention has been made paying attention to such problems existing in the prior art. Its purpose is to better relate the direction of tilting the operating lever that is tilted in two intersecting directions with the operating direction of the operating part of the in-vehicle work equipment or the traveling direction of the vehicle. An object of the present invention is to provide an industrial vehicle driving operation device capable of improving the driving operability of an apparatus or a vehicle. Another object of the present invention is to provide an operation control device provided with the operation device.

  In order to achieve the above object, the invention described in claim 1 has a substantially rod-shaped grip portion, and is mainly provided around a first axis extending in the vehicle front-rear direction and around a second axis extending mainly in the vehicle left-right direction. A driving operation device in an industrial vehicle provided with an operation lever that is tilted in both directions from a neutral position, wherein the axis of the grip portion when the operation lever is in the neutral position is orthogonal to the vehicle left-right direction. It was tilted from the top by a predetermined angle around the first axis toward the driver's seat. Here, the “bar-shaped” is not limited to a thickness that is constant in the axial direction, but includes a shape that changes in thickness in the axial direction. In addition, the “operating lever to be tilted” is not limited to the actually tilting of the operating lever, but also includes a lever that does not tilt only by receiving an operating force applied to the tilting direction of the operating lever.

  Therefore, in the present invention, when the rod-shaped grasping portion is grasped with the right hand or the left hand and the operation lever is tilted about the first axis, the operation lever moves upward or downward from the neutral position. For this reason, the operating direction of the operating lever and the operating direction of the operating portion of the in-vehicle work device are more closely related by operating the operating portion of the in-vehicle working device in a substantially vertical direction by the tilting operation of the operating lever around the first axis Can be made. When the operation lever is tilted around the second axis, the operation lever moves forward or backward from the neutral position. For this reason, the operating direction of the operating lever and the in-vehicle working device can be determined by operating the action part of the in-vehicle working device in a substantially front-rear direction or by moving the vehicle forward and backward by tilting the operating lever around the second axis. It is possible to better relate the operation direction of the operating portion or the traveling direction of the vehicle.

According to the first aspect of the present invention, the axis of the gripping portion when the operation lever is in the neutral position is also determined from the plane perpendicular to the vehicle longitudinal direction to the front of the driver's seat around the second axis. Tilt only the angle.

  Therefore, in the present invention, when the operation lever is gripped with the right hand or the left hand and tilted around the second axis, the right hand pushed out by the driver to the right front or the left hand pushed out by the driver to the left front The operating lever can be gripped without difficulty and the operating lever can be tilted around the second axis within a range in which the wrist joint can be easily moved.

The invention according to claim 1 is configured such that the grip portion of the operation lever is configured such that an axis thereof is located away from a tilt center around the first axis and the second axis, and the operation lever The center of gravity of the hand gripping the grip portion when in the neutral position is positioned directly above the tilt center of the operation lever.
According to a second aspect of the present invention, in the first aspect of the present invention, the axis of the grip portion when the operation lever is in the neutral position is arranged around the first axis from a plane perpendicular to the vehicle lateral direction. The driver's seat was tilted by an angle in the range of 15 to 165 °.

According to a third aspect of the present invention, in the second aspect of the present invention, the axis of the grip portion when the operation lever is in the neutral position is arranged around the first axis from a plane perpendicular to the vehicle lateral direction. It was tilted toward the driver's seat by an angle within the range of 45 to 75 °.

According to a fourth aspect of the present invention, there is provided an in-vehicle work device based on a driving operation device for an industrial vehicle according to any one of the first to third aspects and a tilting operation of the operation lever around a first axis. And the second movement of the action part of the in-vehicle work device in the substantially front-rear direction based on the tilting operation of the operation lever around the second axis, or And control means for controlling forward and reverse travel.

  Therefore, in the present invention, when the control lever is tilted upward or downward from the neutral position around the first axis by gripping the rod-shaped gripping portion with the right hand or the left hand, the control means causes the action portion of the in-vehicle work device to face substantially upward. Or operate downward. Further, when the operation lever is tilted forward or backward from the neutral position around the second axis, the control means causes the action part in the in-vehicle work device to operate substantially forward or backward, or to advance or reverse the vehicle.

The invention according to claim 5 is the invention according to claim 4 , wherein the in-vehicle work device is a fork lifting and tilting device in a forklift truck as an industrial vehicle, the action part is a fork, and the control means Controls the fork elevating operation as the first operation of the fork in the fork elevating and tilting device based on the tilting operation of the operation lever about the first axis, and the operation lever about the second axis. Based on the tilting operation of the fork, the fork forward and backward tilting operations as the second motion of the fork in the fork lifting and tilting device are controlled.

  Accordingly, in the present invention, when the control lever is tilted upward or downward from the neutral position around the first axis by gripping the rod-shaped gripping portion with the right hand or the left hand, the control means moves up and down the fork in the forklift truck. Move the fork up or down. When the operation lever is tilted forward or backward from the neutral position around the second axis, the control means tilts the fork forward or backward.

  According to the present invention, when the operating lever is tilted around the first axis by gripping the rod-shaped gripping portion with the right hand or the left hand, the operating lever moves upward or downward from the neutral position. When the operation lever is tilted about the second axis, the operation lever moves forward or backward from the neutral position. Therefore, the direction in which the operation lever that is operated to tilt in the two intersecting directions is tilted, and the operation direction of the action part of the in-vehicle work device, or the traveling direction of the vehicle can be related better. The driving operability of the vehicle can be improved.

Next, an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 2, the forklift truck 10 as an industrial vehicle is a counterbalance type battery type, and a cab 12 is provided in the center of a vehicle body 11. The cab 12 is provided with a battery hood 13 that covers a battery (not shown), and an operation seat (driver's seat) 14 is provided above the battery hood 13.

  A fork lifting and tilting device (hereinafter simply referred to as a fork device) 15 as an in-vehicle working device is provided on the front side of the vehicle body 11. The fork device 15 includes a mast 17 that supports a fork 16 on which a load is placed so as to be able to move up and down, a lift cylinder 18 that moves the fork 16 up and down (first operation) along the mast 17, and the fork 16 together with the mast 17. A tilt cylinder 19 or the like for tilting and tilting backward (second motion) is formed.

  An armrest 20 is provided on the right side of the operation seat 14, and an operation lever 21 for moving the fork 16 up and down and tilting is provided at the front end of the armrest 20. In the present embodiment, the armrest 20 and the operation lever 21 constitute a driving operation device.

  As shown in FIG. 3, the armrest 20 includes an arm placement portion 20 a on the upper side of the portion excluding the front end portion, and a mounting surface 20 b that faces obliquely upward on the left front of the vehicle on the right side of the front end. The operation lever 21 is erected on the mounting surface 20b. The operation lever 21 is composed of a rod-shaped gripping portion 21a that is gripped by the driver's right hand.

  As shown in FIGS. 1, 4, and 5, the operation lever 21 extends obliquely upward to the front left of the vehicle from the mounting surface 20 b in the neutral position. The operation lever 21 is configured to be tilted in both directions from a neutral position around a first axis A1 extending in the vehicle front-rear direction and around a second axis A2 extending in the vehicle left-right direction. At this time, the tilt center of the operation lever 21 around the first axis A1 and the tilt center around the second axis A2 are both at the intersection C between the first axis A1 and the second axis A2. Further, the first axis A1 only needs to extend mainly in the vehicle front-rear direction, and may be inclined with respect to the horizontal plane so as to be directed upward in front of the vehicle, for example. Similarly, the second axis A2 only needs to extend mainly in the left-right direction of the vehicle. For example, the second axis A2 may be inclined with respect to the horizontal plane so as to be directed to the upper left of the vehicle.

  The operation lever 21 is configured to extend linearly from the tilt center (intersection point C) around the first axis A1 and around the second axis A2. As shown in FIGS. 1 and 4, the operation lever 21 at the neutral position has the axis AL of the operation lever 21 including the grip portion 21a from the orthogonal plane P1 to the second axis A2 (the vehicle left-right direction). Inclined by a predetermined angle α = 60 ° around one axis A1 toward the operation seat 14 (Note that in FIGS. 1 to 5 and FIGS. 7 and 8, α is smaller than 60 ° for convenience of illustration. ). As the angle α, if it is within the range of 15 to 165 °, the direction in which the operation lever 21 is tilted and the direction in which the fork 16 moves up and down can be better related to each other. Is more preferable in terms of easy tilting operation of the operation lever 21 with the gripping portion 21a being gripped, and is most preferably in the range of 55 to 65 °.

  As shown in FIGS. 1 and 5, the operation lever 21 at the neutral position has an axis AL of the entire operation lever 21 including the gripping portion 21 a from the orthogonal plane P <b> 2 with respect to the first axis A <b> 1 (vehicle longitudinal direction). Inclined by a predetermined angle β ° = 22.5 ° forward of the driving seat 14 (In FIGS. 1 to 5 and FIGS. 7 and 8, β is larger than 22.5 ° for convenience of illustration. .) The angle β may be in the range of 0 to 45 °, more preferably in the range of 15 to 30 °, and most preferably in the range of 20 to 25 °.

Next, a cargo handling control system for operating the fork device 15 in the forklift truck 10 will be described with reference to FIG.
The tilting direction from the neutral position around the first axis A1 and the second axis A2 of the operation lever 21 and the tilt angle from the neutral position in each tilt direction are detected by the detection unit 22. The detection unit 22 is electrically connected to the input side of a controller (control means) 23 provided inside the vehicle body 11. When the operation lever 21 is tilted in any direction around the first axis A1, the detection unit 22 outputs a signal corresponding to the tilt angle from the neutral position in that direction to the controller 23. Further, when the operation lever 21 is tilted in any direction around the second axis A2, the detection unit 22 outputs a signal corresponding to the tilt angle from the neutral position in that direction to the controller 23.

  On the output side of the controller 23, a fork lifting electromagnetic control valve 24 for supplying hydraulic oil to the lift cylinder 18 or discharging the hydraulic oil from the lift cylinder 18 is electrically connected. Further, a fork tilting electromagnetic control valve 25 for supplying hydraulic oil to the tilt cylinder 19 or discharging the hydraulic oil from the tilt cylinder 19 is electrically connected to the output side of the controller 23. Yes.

  A hydraulic pump 27 is connected to the fork lifting electromagnetic control valve 24 and the fork tilting electromagnetic control valve 25 via a supply oil passage 26, and an oil tank 29 is connected via a return oil passage 28, respectively. Yes. A cargo handling electric motor 30 that drives the hydraulic pump 27 is connected to the hydraulic pump 27. The electric motor 30 for cargo handling is electrically connected to the output side of the controller 23. In the present embodiment, the detection unit 22, the controller 23, the fork elevating electromagnetic control valve 24, the fork tilting electromagnetic control valve 25, the hydraulic pump 27, and the cargo handling electric motor 30 constitute an operation control device.

  The controller 23 controls the operation of the cargo handling electric motor 30 during the start-up, and supplies hydraulic oil from the hydraulic pump 27 to the electromagnetic control valves 24 and 25. Further, the controller 23 controls the fork elevating electromagnetic control valve 24 based on a signal input from the detection unit 22 in response to the tilting operation of the operation lever 21 around the first axis A1, and the first axis of the operation lever 21 is controlled. The fork 16 is moved up and down at an operation direction and an operation speed according to the tilt direction and tilt angle around A1. Similarly, the controller 23 controls the fork tilting electromagnetic control valve 25 based on a signal input from the detection unit 22 in response to the tilting operation of the operation lever 21 around the second axis A2, and the second of the operation lever 21 is controlled. The fork 16 is tilted with an operation direction and an operation speed corresponding to the tilt direction and tilt angle around the axis A2.

Next, the operation of the present embodiment configured as described above will be described.
When the fork 16 is moved up and down, as shown in FIG. 7, the driver grips the grip portion 21a with the right hand RH and tilts the operation lever 21 around the first axis A1. Here, the operation lever 21 is configured to tilt and operate the rod-shaped gripping portion 21a gripped by the driver with the right hand, and the axis AL of the operation lever 21 including the gripping portion 21a extends from the orthogonal plane P1 to the second axis A2. The angle α = 60 ° is inclined toward the operation seat 14 around one axis A1. For this reason, when the driver tilts the operation lever 21 holding the grip portion 21a with the right hand RH around the first axis A1, the operation lever 21 moves upward or downward from the neutral position. Further, since the operation lever 21 is configured to linearly extend from the tilt center around the first axis A1, when the operation lever 21 is tilted around the first axis A1, the operation lever 21 is moved from the neutral position. The vehicle moves smaller in the left-right direction of the vehicle and moves more greatly in the vertical direction. Then, the fork 16 is lifted by tilting the operating lever 21 upward from the neutral position, and the fork 16 is lowered by tilting the operating lever 21 downward from the neutral position.

  When the fork 16 is to be tilted forward or backward, as shown in FIG. 8, the driver tilts the operation lever 21 held by the right hand around the second axis A2. Here, in the operation lever 21, the axis AL of the entire operation lever 21 including the gripping portion 21a is inclined by an angle β = 22.5 ° forward of the driver's seat around the second axis A2 from the orthogonal plane P2 with respect to the first axis A1. ing. For this reason, when the driver grips the grip portion 21a with the right hand RH and tilts the operation lever 21 about the second axis A2, the operation lever 21 moves forward or backward from the neutral position. Further, the operation lever 21 moves smaller around the second axis A2 in the up-down direction from the neutral position as well as around the second axis A1, and also moves more greatly in the vehicle front-rear direction. Then, the fork 16 is tilted forward by tilting the operation lever 21 forward from the neutral position, and the fork 16 is tilted backward by tilting the operation lever 21 backward from the neutral position.

Next, effects of the present embodiment described in detail above will be listed.
(1) According to the present embodiment, the fork 16 can be moved up and down by tilting the operating lever 21 holding the grip 21a with the right hand up and down from the neutral position around the first axis A1. Further, the fork 16 can be tilted back and forth by tilting the operation lever 21 around the second axis A2 from the neutral position in the vehicle front-rear direction.

  Therefore, since the direction when the operation lever 21 is tilted from the neutral position and the operation direction of the fork 16 can be related better, the driver can operate the operation lever 21 intuitively. Therefore, even if the driver is unfamiliar with the forklift truck 10 in which the fork 16 is moved up and down and tilted back and forth by tilting the operation lever 21 in two directions intersecting with each other, the operation lever Familiarity with the operation of 21 is not required. As a result, when the forklift truck configured to perform the raising / lowering operation and the forward / backward tilting operation of the fork 16 with separate operation levers is transferred to the forklift truck 10 of the present embodiment, the physical and mental of the driver. Burden can be reduced.

  (2) The operation lever 21 is configured to extend linearly from the tilt center around the first axis A1 and around the second axis A2. For this reason, when the operating lever 21 is tilted around the first axis A1 as compared with an operating lever configured such that the axis of the gripping part deviates from the tilting center, the gripping part 21a is more in the vehicle left-right direction from the neutral position. Moves smaller and moves more vertically. Similarly, when the operation lever 21 is tilted about the second axis A2, the gripping portion 21a moves smaller in the vertical direction from the neutral position and moves more in the vehicle left-right direction. Therefore, the operation direction of the operation lever 21 and the operation direction of the fork 16 can be associated more clearly.

  (3) The axis AL of the operating lever 21 including the grip portion 21a when the operating lever 21 is in the neutral position is tilted by an angle β forward of the driver seat 14 around the second axis A2 from the orthogonal plane P2 with respect to the vehicle longitudinal direction. It was. For this reason, the driver can grip the grip portion 21a with his / her right hand and tilt the operation lever 21 around the second axis A2 within a range in which the wrist joint can be easily moved.

Next, embodiments other than the above embodiment will be described.
The position where the operation lever 21 is installed in the forklift truck 10 may be a position where the driver can tilt the operation lever 21 around the first axis A1 and the second axis A2 with the right hand or the left hand. . As illustrated in FIG. 9, this position is a range in which the right hand or the left hand can reach in front of the driver's shoulder seated on the driving seat 14, above the shoulders, above the hips, and below the head as viewed in the vehicle left-right direction. It may be within M. Further, as illustrated in FIG. 10, in a vertical direction view, within the range (including the front part of the seat 14 b of the driving seat 14) N that the right hand or the left hand reaches in front of the backrest 14 a of the driving seat 14. I just need it. That is, the operation lever 21 may be installed at a position corresponding to the center of the driving seat 14 in the left-right direction of the vehicle, and may be configured to be operated with the right hand or the left hand. In this case, the “driver's seat side” includes the right side or the left side with respect to the center of the driver's seat 14 in the vehicle left-right direction.

  The operation lever 21 may be configured such that the tilt center around the first axis A1 does not coincide with the tilt center around the second axis A2. In this case, the operation lever 21 may be configured to extend linearly from either the tilt center around the first axis A1 or the second axis A2.

The grip part 21a of the operation lever 21 may be configured such that a concave part into which each finger enters is formed in accordance with the position of each finger of the right hand that grips the grip part 21a.
The operation lever is not limited to a configuration that actually tilts, and may be one that does not tilt only by receiving an operation force applied to the operation lever in a direction of tilting around the first axis and the second axis. In this case, an operation force applied to the operation lever may be detected, and the operation direction and operation speed of the fork 16 may be controlled based on the direction and magnitude of the operation force.

The present invention may be embodied in a reach-type forklift truck provided with a fork lifting and tilting device that performs a lifting operation and a tilting operation of the fork.
The present invention is embodied in a counterbalance type or reach type forklift truck equipped with a fork lifting device that performs only the lifting and lowering operation of the fork. The controller (control means) controls the lifting / lowering operation of the fork 16 based on the tilting operation around the first axis A1 with respect to the operating lever 21. Further, the controller may control the forward / backward movement of the vehicle by controlling the electric motor for traveling based on the tilting operation around the second axis A2 with respect to the operation lever 21.

  The present invention is embodied in an excavator loader as an industrial vehicle that includes an excavator elevating and tilting device as an in-vehicle work device, and that causes the excavator as an action unit to move up and down (first operation) and forward and backward tilt (second operation). To do. That is, the excavator is moved up and down by a tilting operation around the first axis A1 of the operating lever, and the excavator is tilted back and forth by a tilting operation around the second axis A2 of the operating lever.

  As described above, a bent operation lever 40 as shown in FIGS. 11A and 11B is provided in place of the operation lever 21 extending linearly from the tilt center (intersection point C). The grip portion 41 of the operation lever 40 has an axis AL at a position away from the tilt center (intersection C) around the first axis A1 and the second axis A2 of the operation lever 40. Then, the operation lever 40 is configured such that the center of gravity position G assumed in the right hand RH that holds the holding portion 41 is located immediately above the tilting center of the operation lever 40 when the operation lever 40 is in the neutral position. According to such a configuration, when the operation lever 40 is in the neutral position, the operation lever 40 does not tilt from the neutral position even if the driver does not consciously support the right hand RH that grips the grip portion 41. This makes it easier to hold the operation lever 40.

The technical ideas grasped from each of the embodiments will be listed below.
(1) a pre-Symbol the grip of the axis at the time the operating lever is in the neutral position, from the orthogonal plane relative to the vehicle longitudinal direction in the range of 0 to 45 ° even forward of the driver's seat to the second axis Tilt only the angle .

  (2) In the driving operation device for an industrial vehicle described in the technical idea (1), the axis of the grip portion when the operation lever is in the neutral position is set to be the second from the plane orthogonal to the vehicle longitudinal direction. A driving operation device in an industrial vehicle that is tilted by an angle within a range of 15 to 30 ° around the axis and in front of the driver's seat.

  (3) In the driving operation device for an industrial vehicle described in the technical idea (2), the axis of the grip portion when the operation lever is in the neutral position is set from the plane orthogonal to the vehicle front-rear direction. A driving operation device in an industrial vehicle that is tilted by an angle within a range of 20 to 25 ° around an axis to the front of the driver's seat.

(4) a pre-Symbol axis of the grip part at the time the operating lever is in the neutral position by an angle in the range from the orthogonal plane relative to the vehicle lateral direction of 55 to 65 ° to the driver's side to said first axis Tilted .

(5) the working part prior SL-vehicle working equipment is a fork lift device in fork-lift trucks as industrial vehicle is a fork, the control means, the tilting operation in the first axis of the operating lever based fork lift operation as the first operation of the fork in the fork lift device controlled by, that controls the forward and reverse of the vehicle based on the tilting operation in the second axis of the operating lever.

(6) industrial vehicle provided with an operation control device in the industrial vehicle.
(7) fork-lift truck with a driving control device of the industrial vehicle.

The side view which shows the driving operation apparatus provided in the forklift truck of one Embodiment. The side view which shows a forklift truck. The perspective view which shows a driving | operation operation apparatus. The front view which shows a driving | operation operation apparatus. The top view which shows a driving | operation operation apparatus. The block diagram which shows a cargo handling control apparatus. The front view of the driving operation apparatus which shows the operation state of an operation lever. The side view of the driving operation apparatus which similarly shows the operation state. The side view of the driver's cab which shows the installation position of the operation lever in other embodiment. The top view of a driver's cab similarly. (A) is a side view which shows the operation lever in other embodiment, (b) is a front view similarly.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Forklift truck as an industrial vehicle, 14 ... Driving seat as a driver's seat, 15 ... Fork raising / lowering and tilting device as on-vehicle work equipment, 16 ... Fork as an action part, 20 ... Armrest which comprises driving operation device, 21 ... same operating lever, 21a ... gripping part, 22 ... detection part constituting the operation control device, 23 ... controller as control means constituting the operation control device, 24 ... fork lifting electromagnetic control valve constituting the operation control device 25 ... same fork tilting electromagnetic control valve, 27 ... same hydraulic pump, 30 ... same electric motor for cargo handling, 40 ... operating lever, 41 ... gripping part, A1 ... first axis, A2 ... second axis, AL ... ( Axis of operation lever, C ... center of tilting (operation lever), P1, P2 ... orthogonal plane, RH ... right hand, α, β ... angles.

Claims (5)

An industry having a substantially rod-shaped gripping portion and having an operation lever that is tilted in both directions from a neutral position around a first axis extending mainly in the vehicle longitudinal direction and around a second axis extending mainly in the vehicle left-right direction. A driving operation device in a vehicle,
Wherein the axis of the grip part at the time the operating lever is in the neutral position, the vehicle orthogonal planes from the plane orthogonal with respect to the horizontal direction with respect to only tilt allowed Rutotomoni the vehicle longitudinal direction by a predetermined angle to the driver's side to said first axis It is configured to be inclined at a predetermined angle from above to the front of the driver's seat around the second axis,
The grip portion of the operation lever is configured such that its axis is located away from the tilt centers around the first axis and the second axis,
A driving operation device in an industrial vehicle, wherein the operation lever is configured such that a gravity center position of a hand holding the holding portion is located immediately above the tilt center of the operation lever when the operation lever is in the neutral position . The axis of the gripping portion when the operation lever is in the neutral position is tilted by an angle within a range of 15 to 165 degrees toward the driver's seat around the first axis from a plane orthogonal to the vehicle lateral direction. Item 2. A driving operation device for an industrial vehicle according to Item 1. The axis of the gripping portion when the operation lever is in the neutral position is tilted from the plane orthogonal to the vehicle lateral direction to the driver's seat side by an angle in the range of 45 to 75 ° around the first axis. Item 3. A driving operation device for an industrial vehicle according to Item 2. A driving operation device in an industrial vehicle according to any one of claims 1 to 3,
Based on the tilting operation of the operation lever around the first axis, the first operation of the action part in the in-vehicle work device is controlled in the substantially vertical direction, and the on-vehicle operation is performed based on the tilting operation of the operation lever around the second axis. An operation control apparatus for an industrial vehicle, comprising: a second operation in a substantially front-rear direction of an action part in a work device; or a control unit that controls forward and reverse of the vehicle. The in-vehicle work device is a fork lifting and tilting device in a forklift truck as an industrial vehicle, and the action part is a fork,
The control means controls the fork elevating operation as the first operation of the fork in the fork elevating and tilting device based on the tilting operation of the operation lever around the first axis, and the second of the operating lever. The industrial vehicle operation control device according to claim 4, wherein the fork forward / backward tilting operation as the second motion of the fork in the fork lifting / lowering device is controlled based on a tilting operation around an axis.

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