[go: up one dir, main page]

WO2000076902A1 - Vehicule de transport du type a fourche laterale - Google Patents

Vehicule de transport du type a fourche laterale Download PDF

Info

Publication number
WO2000076902A1
WO2000076902A1 PCT/JP2000/002947 JP0002947W WO0076902A1 WO 2000076902 A1 WO2000076902 A1 WO 2000076902A1 JP 0002947 W JP0002947 W JP 0002947W WO 0076902 A1 WO0076902 A1 WO 0076902A1
Authority
WO
WIPO (PCT)
Prior art keywords
turning
wheels
wheel
cylinder
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2000/002947
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Nishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCM Corp
Original Assignee
TCM Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP16612499A external-priority patent/JP3375569B2/ja
Priority claimed from JP16612599A external-priority patent/JP3375570B2/ja
Priority claimed from JP19825799A external-priority patent/JP3403673B2/ja
Application filed by TCM Corp filed Critical TCM Corp
Publication of WO2000076902A1 publication Critical patent/WO2000076902A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/08—Masts; Guides; Chains
    • B66F9/10—Masts; Guides; Chains movable in a horizontal direction relative to truck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/04—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
    • B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
    • B62D11/183—Control systems therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/15—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
    • B62D7/1509—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels with different steering modes, e.g. crab-steering, or steering specially adapted for reversing of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D9/00—Steering deflectable wheels not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07568—Steering arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07572—Propulsion arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0015—Disposition of motor in, or adjacent to, traction wheel the motor being hydraulic

Definitions

  • the present invention relates to a side-fook-type transport vehicle used for transporting, for example, eleven-quantity goods.
  • the vehicle body 1 can travel on the floor via the driving wheels (rear wheels) 2 and the turning wheels (front wheels) 3, and at that time, the vehicle is driven by the engine 4 mounted on the vehicle body 1. This is performed by forcibly rotating the drive wheel 2 by force.
  • the vehicle body 1 is provided with a pair of front and rear guide rails 5 in the left-right direction, and a movable body 6 is provided between the guide rails 5.
  • a pair of front and rear masts 7 are erected from the end of the movable body 6.
  • a pair of left and right guide rollers 8 are provided before and after the movable body 6 and the mast 7, respectively.
  • An elevating body 9 guided by both masts 7 is provided, and the elevating body 9 is provided with a fork 10 which faces in the left-right direction.
  • the elevating body 9 is moved up and down by a lift cylinder 11
  • Reach means 13 is provided for protruding the fork 10 in the left-right direction.
  • the reach means 13 includes a pair of support rods 14 erected from the vehicle body 1 side, a front-rear support pin 15 provided between upper ends of both support rods 14, and a support pin 15.
  • the main body is connected and the piston rod is constituted by an operation cylinder 17 and the like connected to the master 7 side via a connection pin 16.
  • An operating unit 20 is provided at the front of the vehicle body 1 and at one upper side, and the operating unit 20 is equipped with a driver's seat 21, an operating handle 22, and a group of operating levers 23. I have.
  • the movable body 6 and the movable body 6 are guided through the guide roller 8.
  • the fork 10 can be protruded sideways.
  • the solid line in FIG. 26 by contracting the operation cylinder 17, the movable body 6 and the mast 7 are laterally moved in the opposite direction via the guide rollers 8, thereby forming a fork. You can move out of 10.
  • the turning is performed by turning the turning wheel 3 in accordance with the operation of the operation handle 22.
  • the turning center 0 is driven by the drive shaft. Since it is on an extension of (fixed axis), in-situ rotation is impossible. Then, the turning radius R also increases.
  • the first object of the present invention is to traverse, turn in place.
  • An object of the present invention is to provide a side fork-type transfer vehicle that enables various traveling modes such as parallel movement.
  • a second object is to provide a side-fork-type transfer vehicle that can perform straight-ahead, turn, and turn in place in this order continuously and can also traverse.
  • a third object is to provide a side-fork-type transfer vehicle which is a four-wheeled vehicle type, and is capable of turning during normal driving and traversing and turning on the spot. It is in.
  • a side fork-type transfer vehicle is provided with a pair of left and right drive wheels and diverting wheels, and is capable of reciprocating in the left and right directions.
  • a side fork type transfer vehicle provided with a mast, a fork movable up and down on the mast side, and a reach means for moving the fork in and out of the fork.
  • Both drive wheels are respectively linked to the drive shaft on the hydraulic motor side, and both hydraulic motors are mounted on pivot members provided rotatably around the vertical axis with respect to the vehicle body side.
  • turning means for turning the turning member are provided, and a hydraulic pump driven by an engine is provided on the vehicle body side, and the hydraulic motor is connected to the hydraulic pump.
  • the exchange wheel Is characterized by being provided rotatably around the longitudinal axis with respect to the vehicle body side.
  • the transport vehicle when traveling straight in normal traveling in which the pair of left and right drive wheels and the diverting wheels face in the front-rear direction, the transport vehicle can be turned right and left due to the difference in the rotational speed between the two drive wheels. .
  • the rotating means operates by a predetermined amount and the left and right drive wheels are operated. Can be converted to a state in which the rear ends approach each other, and the hydraulic pressure from the hydraulic pump driven by the engine is supplied to the hydraulic motor to drive the drive wheels in the normal and reverse directions.
  • the transport vehicle can be turned right and left on the spot.
  • the turning center is located in the vehicle body, so that the turning can be performed with a small turning radius.
  • the turning wheel changes its direction and performs follow-up rotation.
  • the turning means when the traverse mode switch is selected, the turning means is operated to turn the turning member around the vertical axis, and both drive wheels are turned 90 degrees with respect to the vehicle body (directly turned to the side). ) it can.
  • the drive wheels are each integrated with the hydraulic motor, the conversion can be performed easily and smoothly.
  • the transport vehicle By driving the drive wheels in the normal and reverse directions through the hydraulic motor, the transport vehicle can travel sideways in the left and right directions. At that time, the turning wheel changes its direction to 90 degrees and performs follow-up rotation.
  • the transporting vehicle can be easily moved to the front of the shelf device, that is, to the very edge of the luggage, so that it is not necessary to shift the width by turning back and forth, and loading and unloading of the luggage by the fork is always performed stably. be able to.
  • one side of a pair of right and left turning wheels is steered by an operation handle.
  • the other side is a casing wheel that is rotatable with respect to the vehicle body side.
  • the turning is performed continuously in this order.
  • normal straight running can be performed by turning the pair of left and right driving wheels, and the steering wheel and the casing wheel that are distributed to the left and right, all in the front-rear direction.
  • turning can be performed by steering the steered wheels with the operating handle.At that time, based on the detection of the steering angle, turning straight, turning, and then turning in place can be performed continuously in this order. For example, if the traverse mode switch is selected, both the drive wheels can be turned 90 degrees to the vehicle body (directly to the side) by operating the rotating means, and the steered wheels can be turned to the vehicle body. Can turn 90 degrees.
  • the side fork-type transport vehicle can travel sideways in the left and right directions.
  • a turning wheel turning means for turning a pair of right and left turning wheels.
  • the diverting wheel rotating means includes a diverting cylinder and a link mechanism for rotating the diverting wheel by expansion and contraction of the diverting cylinder.
  • the cylinder includes a left-right cylinder body, a pair of pistons disposed in the cylinder body, and a pair of pistons connected to these bones and projecting outward in the left-right direction.
  • the turning cylinder is operated by a handle operation to perform left and right operations with an opto-roll, and by operating respective control valves. , Characterized in that both pistons are individually operable.
  • the left and right driving wheels and the left and right turning wheels face in the front-rear direction during normal running.
  • the inner ends of the piston port are in contact with each other, and the left and right screws are evenly positioned on the left and right.
  • the turning cylinder is actuated to the left and right so that both of the pistons reach the outer ends respectively, whereby the left and right turning wheels are moved to the next position.
  • the end sides can be turned to be inclined away from each other, and the drive wheel rotating means can be operated to turn the left and right drive wheels to the inclined state so that the rear ends come closer to each other. , It is possible to turn on the spot.
  • the setting to the in-place turning mode can be performed regardless of the operation position of the operation handle.
  • a lever-type traversing mode switch is operated to operate the turning means and the turning wheel turning means.
  • the rotating means is operated to rotate the drive wheel around the vertical axis, thereby turning the vehicle to 90 degrees (directly to the side) with respect to the vehicle body.
  • both piston rods are extended and contracted to a designated position by the control flow from each control valve, and the turning wheel is moved to the vehicle body via a link mechanism. Is turned to 90 degrees (turned to the side).
  • Such a setting in the traversing mode can be performed regardless of the operation position of the operation handle.
  • the forklift can travel sideways on the left and right.
  • the pair of right and left turning wheels follow up.
  • the operating handle is operated as usual, and both piston rods are moved left and right within the allowable range by the control flow from the control valve.
  • the position, turn, and correction during traversing can be performed.
  • it is a four-wheeled vehicle type, and a single conversion cylinder is used, and the bistro rod of the conversion cylinder is divided into right and left.
  • a single conversion cylinder is used, and the bistro rod of the conversion cylinder is divided into right and left.
  • FIG. 1 shows a first embodiment of the present invention, and is a partially cutaway side view of a side fork-type transfer vehicle.
  • FIG. 2 is a longitudinal sectional front view of the side fork-type transfer vehicle.
  • FIG. 3 is a partially cutaway plan view of the side fork-type transfer vehicle.
  • FIG. 4 is a schematic perspective view of the side fork-type transfer vehicle.
  • FIG. 5 is a partially cutaway front view of a drive wheel portion of the side fork-type transfer vehicle.
  • FIG. 6 is a partially cutaway front view of a turning wheel portion of the side fork-type transfer vehicle.
  • Fig. 7 is a schematic plan view of the side fork-type transfer vehicle. (B) is a normal turn when traveling forward.
  • Fig. 8 is a schematic plan view of the side fork-type transfer vehicle, in which (a) shows a turn at the place and (b) shows a traverse.
  • FIG. 9 shows a second embodiment of the present invention, and is a schematic plan view of a side fork-type transfer vehicle, in which (a) shows a straight running and (b) shows a parallel movement.
  • FIG. 10 shows a third embodiment of the present invention, and is a schematic plan view of a side fork-type transfer vehicle.
  • Fig. 11 shows the turning wheel portion of the side fork-type transfer vehicle, where (a) is an explanatory diagram of acceleration and (b) is an explanatory diagram of steering acceleration.
  • FIG. 12 is a schematic plan view comparing the operation of the first embodiment of the present invention with the conventional example.
  • FIG. 13 shows a fourth embodiment of the present invention, and is a partially cutaway side view of a side fork-type transfer vehicle.
  • FIG. 14 is a diagram illustrating the operation of the side fork-type transfer vehicle.
  • Figure 15 is a partially cutaway front view of the steering wheel and casing wheel of the side fork-type transfer vehicle.
  • Fig. 16 is a partially cutaway plan view of the steering wheel and cascade wheel of the side fork-type transfer vehicle.
  • Fig. 17 is a schematic plan view of the side fork-type transfer vehicle, where (a) is for straight running and (b) is for large radius turning.
  • Fig. 18 is a schematic plan view of the side fork-type transfer vehicle, where (a) shows a middle radius turn and (b) shows a small radius turn.
  • FIG. 19 is a schematic plan view of the side fork-type transfer vehicle, where (a) shows a turn while on the spot and (b) shows a sideways travel.
  • FIG. 20 shows a fifth embodiment of the present invention, and is a partially cutaway plan view of a turning-wheel turning means of a side fork-type transfer vehicle.
  • Figure 21 is a partially cutaway side view of the side fork-type transfer vehicle.
  • FIG. 22 is a partially cutaway front view of a turning wheel portion of the side fork-type transfer vehicle.
  • Fig. 23 is a schematic plan view of the side fork-type transfer vehicle, (a) when traveling straight ahead, and (b) when traveling sideways.
  • Fig. 24 is an explanatory diagram of the operation of the turning wheel portion of the side fork-type transfer vehicle.
  • (A) is for normal turning
  • (b) is for in-situ turning
  • (c) is for traversing.
  • Fig. 25 is an explanatory diagram of the electric control of the side fork-type transfer vehicle, where (a) is for a traversing right turn and (b) is for a traversing left turn.
  • FIG. 26 shows a conventional example, and is a schematic plan view of a side fork-type transfer vehicle when turning.
  • FIG. 27 is a longitudinal sectional front view of the side fork-type transfer vehicle.
  • Fig. 28 is a partially cutaway side view of the side fork-type transfer vehicle.
  • FIGS. 1 to 8 and FIG. FIGS. 4 and 12 are shared with the conventional example.
  • the same or almost the same components as those in the conventional example are denoted by the same reference numerals, and the details are omitted.
  • 1 is the body
  • 2 is the drive wheel
  • 3 is the turning wheel
  • 4 is the engine
  • 5 is a guide rail
  • 6 is a movable body
  • 7 is a mast
  • 8 is a guide roller
  • 9 is an elevating body
  • 10 is a fork
  • 11 is a lift cylinder
  • 13 is a reach means
  • 1 4 Is a support rod
  • 15 is a support bin
  • 16 is a connecting pin
  • 17 is an operating cylinder
  • 20 is a driving section
  • 21 is a driver's seat
  • 22 is an operating handle
  • 23 is an operating lever
  • 2 is an operating lever. 5 shows each shelf device.
  • the pair of left and right drive wheels 2 are provided so as to be able to turn 90 degrees with respect to the vehicle body 2 (turn right beside).
  • the drive wheel 2 has its rim 2a directly attached to the rotary flange (drive shaft) 31 of the hydraulic motor 30 via the connector 32 so that the hydraulic motor 3 Linked to the 0 side.
  • An arm 47 fixed to the left and right vertical axes 35 is connected to each other via a link body 48 and a connecting pin 49 so as to be relatively rotatable. That In this case, the link body 48 is arranged so as to be in a cross shape with respect to a left-right direction line connecting the left and right longitudinal centers 36 when the two drive wheels 2 face in the straight traveling direction.
  • the turning member 33 is rotated via the link 45, and the drive wheel 2 on one side is moved to the vertical axis 3 via the hydraulic motor 30 or the like. 6 and can be turned to the side, and the drive wheel 2 on the other side is turned to the circumference of the vertical axis center 36 via the arm 47-link body 48, etc. Get to. That is, according to the rotating means 40, the left and right drive wheels 2 are turned in opposite directions by the operation of the common traversing cylinder 41, and are directed to the side.
  • An example of the rotating means 40 is constituted by the above 41 to 49 and the like.
  • a pair of hydraulic pumps 51 driven by the engine 4 are provided on the vehicle body 2 side. Then, the hydraulic pumps 51 should correspond to one hydraulic motor 30, that is, the hydraulic drive system (HST system) should be a two-pump two-motor hydraulic drive system (HST system).
  • the hydraulic pump 51 and the hydraulic motor 30 are communicated via a pipe (eg, a hydraulic hose) 52.
  • the pair of right and left diverting wheels 3 are each provided so as to be able to turn to the vehicle body 2 by 180 degrees or more.
  • the pair of left and right diverting wheels 3 are each attached to the turning bracket 55 by a free axle 56 via a lateral axle 56 or the like.
  • the turning bracket 55 is rotatably provided around the longitudinal axis 59 with respect to the vehicle body 2 via a bearing 57 and a longitudinal axis 58. At that time, the vertical axis center 59 is shifted in the front-rear direction with respect to the position of the axle 51, so that the whole is in a cascade configuration.
  • FIGS. 1 to 4 solid lines in FIGS. 5 and 6, and (a) in FIG. 7, a pair of left and right driving wheels 2 and a pair of right and left turning wheels 3 are oriented in the front-rear direction.
  • the traversing cylinder 41 is positioned in the middle, and the link body 48 is positioned so as to form a cross with respect to the left-right direction line.
  • an operator sitting in the driver's seat 21 of the driving unit 20 can travel by operating the operation handle 22.
  • the movable cylinder 17 of the reach means 13 is contracted and moved as shown by a solid line in FIG.
  • the mast 7 can be moved to the reach means 13 side, and the fork 10 can be moved in and out.
  • the movable body 6 and the mast 7 are moved laterally away from the reach device 13 via the guide roller 8,
  • the fork 10 can be protruded in the lateral direction.
  • the intended conveyed goods can be unloaded.
  • the driving wheel 2 is turned in accordance with the difference in the rotational speed between the two driving wheels 2. That is, as shown in (b) of FIG. 7, for example, when the rotation speed 75 B on the right side is made higher than the rotation speed 75 A on the left side, the transporting vehicle makes a left turn due to the difference in the rotation speed.
  • the pair of right and left divert wheels 3 is of the cascade type, the direction is automatically changed to the turning direction. The follow-up rotation is performed while changing.
  • the transport vehicle can be turned leftward and laid on the shelf device 25, for example, as shown by the solid line to the virtual line in Z in FIG. Note that a right turn can be performed in the same manner by increasing the left rotation speed relative to the right rotation speed.
  • the traversing cylinder 141 When the on-the-fly turning mode is selected, the traversing cylinder 141 is contracted by a predetermined amount (stopped halfway) as shown in FIG. 8 (a).
  • the driving wheels 2 are turned to a state where the rear end sides are inclined so as to approach each other. In this way, the sensor 1 or the like senses that the drive wheel 2 has been turned, and turns on the indicator lamp, thereby enabling the on-the-fly turning mode.
  • the hydraulic pressure from the pair of hydraulic pumps 51 driven by the engine 4 is supplied to the corresponding hydraulic motor 30 through the pipe 52 by forward / reverse control in the driver's seat 21.
  • the drive wheel 2 is driven in the normal or reverse direction, so that the transport vehicle can turn right and left in place.
  • the turning center 0 is located in the vehicle body 1 and can turn in the field with a small turning radius r.
  • the transport vehicle is placed on the shelf device 25, and then the normal traveling is switched to the traversing traveling.
  • the transporting vehicle can be sufficiently moved toward the front of the shelf device 25 (it can be moved to the side). This can be done, for example, by operating a lever-type traversing mode switch (not shown) and operating the rotating means 40.
  • the lever for tilting the lever causes the traversing cylinder 41 to extend, and the rotating member on one side is extended via the link 45.
  • the pivot member 33 on the other side is pivoted about the longitudinal axis 36 through the link 47 and the link body 48.
  • both drive wheels 2 are turned 90 degrees with respect to the vehicle body 1 (turn right beside).
  • the drive wheels 2 are each integrated with the hydraulic motor 30, the turning can be easily and smoothly performed, and the longitudinal axis 36 is located directly above the drive wheels 2.
  • the drive wheel 2 is compact and can turn 90 degrees.
  • the 90-degree turning of the drive wheel 2 is performed, that is, the fact that the drive wheel 2 is turned right beside is detected by a sensor or the like, and the indicator is turned off.
  • Lights the lamp which enables traversing mode. Therefore, by driving the drive wheels 2 in the normal and reverse directions via the hydraulic motor 30, the transport vehicle can be traversed left and right, and the transport vehicle can be moved in front of the shelf device 25. Sufficient (can be wide).
  • the directions are automatically changed to 90 degrees as shown by the imaginary line in FIG. 6 and (b) in FIG. Then, follow-up rotation is performed.
  • the transport vehicle can be easily moved to the front of the shelving device 25, that is, to the load, so that it is not necessary to pull the vehicle back and forth, and the fork 10 can be used to load the load. Loading and unloading can be performed stably.
  • the contraction action chamber of the traversing cylinder 41 has a small width during such traversing, and this Position, turning, and correction during traversing And so on.
  • the piston rod 43 left and right within the range of the leeway (up to about 30 ° left and right), the position, turning, correction, and the like during traversing can be performed.
  • the on-the-fly turning mode or the traversing mode is released by returning the piston to the specified position (neutral position or a position matching the sensor of the operation handle 22). This can be done by moving rods 43.
  • the link body 48 of the rotating means 40 is connected to the left and right longitudinal centers 36 when both drive wheels 2 face the straight direction. It is arranged so as to be parallel to the direction line.
  • the traversing cylinder 141 is contracted by a predetermined amount, as shown in FIG. Accordingly, the left and right drive wheels 2 are inclined and turned in the same direction. In this way, the fact that the drive wheel 2 has been turned is sensed by a sensor or the like, and the indicator lamp is turned on, thereby enabling the parallel movement mode. Accordingly, by driving the drive wheels 2 in the same direction via the hydraulic motor 30, the transfer vehicle can be translated in the left and right inclination directions.
  • one of the pair of front wheels on the left and right is one of the turning wheels 3 in the Cass evening style, while the other is positioned on the wheels by the vertical axis 58 (vertical axis 59).
  • the turning wheel 3A is steered by the operation handle 22.
  • the turning wheel 3A since the turning wheel 3A is turned just below the vertical axis 58, the turning wheel 3A protrudes outward or unnecessarily with respect to the vehicle width during the turning.
  • the vehicle does not enter the vehicle, so that the vehicle can always turn at a predetermined position with good stability.
  • the turning wheel 3A needs a turning angle of 180 degrees or more in order to perform on-the-spot turning or turning around the drive shaft, and in order to do this smoothly, increase gears and chains. Speeding or steering using hydraulic motors.
  • a pinion 60 is provided on the vertical axis 58, and a rack 61 that is always joined to the pinion 60 is a push-pull cylinder 62. Connected to the Boston rod 63. Therefore, by operating the push-pull cylinder — 62 in accordance with the angle of operation of the operation handle 22, it is possible to easily and smoothly turn the turning wheel 3 A by 180 ° or more. .
  • a passive gear 65 is provided on the vertical axis 58, and a transmission gear 66 always connected to the passive gear 65 is provided. Further, a gear box 67 is provided in which the operation handles 22 are linked. The pitman arm 68 from the gear box 67 and the transmission gear 66 are interlocked via a drag link 69, etc., and a PS cylinder 70 is also interlocked with the transmission gear 66. ing. Therefore, with the speed increasing gear configuration including the passive gear 65 and the transmission gear 66, the turning of the turning wheel 3A more than 180 degrees can be easily and smoothly realized.
  • one is a turning wheel 3 of a cascade type, and the other is a turning wheel 3A in which a vertical axis 58 is positioned on the wheel.
  • the vertical axis 58 is located on the wheel for both wheels
  • the wheel may be 3 A.
  • the two-way directional wheels 3A are configured to be independently steered.
  • the traversing cylinder 41 of the rotating means 40 is configured to be able to perform stop control during operation.
  • one side is configured as a steering wheel 100 steered by an operation handle 22, and the other side is a casing wheel 1 2 which is rotatable with respect to the vehicle body 1 side.
  • the steered wheels 100 and the cascade wheels 120 are respectively provided so as to be able to turn to 180 degrees or more with respect to the vehicle body 1.
  • the steered wheel 100 has its rim 100a portion attached to the vertical plate portion of the turning member 101 via a horizontal axle 102 or the like so as to rotate freely.
  • the horizontal plate portion of the revolving member 101 is provided rotatably around the longitudinal axis 105 with respect to the vehicle body 1 via the bearing 103 and the longitudinal axis 104. I have.
  • the vertical axis center 105 is configured to be located directly above the steered wheel 100.
  • the steered wheel 100 is rotated around the vertical axis center 105.
  • Steering wheel turning means 106 is provided, and the steering wheel turning means 106 has a turning cylinder 107 which is electrically controlled.
  • the conversion cylinder 107 is fixed to the vehicle body 1 with the cylinder main body 108 oriented in the left-right direction, and the piston port connected to the piston is formed.
  • the head 109 projects outward in the vehicle width direction.
  • the protrusion of the arm rod 110 and the piston rod 109 connected continuously from the longitudinal axis 104 side.
  • the protruding end is connected so as to be relatively rotatable via a link 111 and vertical connecting pins 112, 113.
  • the deflection cylinder 107 is extended and moved in accordance with the turning angle of the operation handle 22
  • the extension movement of the turning cylinder 107 causes the longitudinal axis 104 to rotate through the link 111, the arm body 110, and the like.
  • the steered wheel 100 can be turned to the side of the vertical axis center 105 via the 101 or the like, and be turned sideways.
  • the above-mentioned 106 to 114 and the like constitute an example of the steering wheel turning means 106 for turning the steered wheel 100 around the vertical axis 105.
  • the casing wheel 120 is freely rotatably mounted on the turning bracket 122 via a lateral axle 122 or the like.
  • the turning bracket 122 is rotatably provided around the longitudinal axis 125 with respect to the vehicle body 1 via a bearing 123 and a longitudinal axis 124.
  • the longitudinal axis 1 25 is displaced in the front-rear direction with respect to the position of the axle 1 2 2, so that it is of a cascade type.
  • the side-fork-type transfer vehicle having the above configuration, based on the detection of the turning angle when the steering wheel 100 is steered by the operation handle 22, determines that the straight ahead A, the turn B, and the turn in place C are: So that they are performed continuously in this order It is configured. In addition, it is configured that the traversing D is performed by selecting the traversing mode.
  • a detecting means (a sensor or the like) 128 for detecting a turning angle of the operating handle 22 is provided, and a controller 1 for receiving a signal from the detecting means 128 is provided. 29 are provided. Further, a control valve 127 which is connected to the controller 127 and operates the traversing cylinder 41 is provided.
  • the solid lines in Figs. 13 and 15 and the solid lines in Figs. 16 and 17 (a) show a pair of left and right drive wheels 2, the steering wheels 100 and the left and right wheels 1 and 0, respectively. All point in the front-rear direction, which indicates the state of straight ahead A in normal driving.
  • the rotating means 40 the traversing cylinder 41 is positioned in the middle, and the link body 48 is positioned so as to form a cross with respect to the left-right direction line.
  • the turning cylinder 110 ° is positioned in the middle. In such a side fork-type transfer vehicle, a worker sitting in the driver's seat 21 of the driver 20 can operate and move the operation handle 22 or the like.
  • the traveling motion of the side fork-type transfer vehicle is controlled by turning the turning means 40 and the steered wheel turning means 106 based on the detection of the turning angle when the steered wheels 100 are steered by the operation handle 22.
  • the straight running A, the turning B1 to B3, and the in-situ turning C are performed continuously in this order.
  • the casing wheel 1202 performs the following rotation while automatically changing its direction to the turning direction by the casing function. That is, in (a) of FIGS. 14 and 17, when everything is facing in the front-rear direction, the detecting means 1 28 for detecting the turning angle of the operation handle 22 is used to control the controller 12 9
  • the forward turning angle signal F is input to.
  • the forward control signal f from the controller 12 9 is input to the control valve 1 27, whereby the traversing cylinder 4 1 is set to the intermediate operation and the front and rear directions of the two drive wheels 2 are set. Posture is maintained. Further, by controlling the opto rolls 114 directly connected to the operation handle 22, the turning cylinder 107 is operated in an intermediate manner, and the front and rear posture of the steered wheels 100 is maintained. Further, both hydraulic pumps 51 are driven in the same amount by the forward control signal f, whereby both drive wheels 2 are rotated at the same rotational speed of 130 A, and straight traveling A in normal running is performed.
  • the turning mode is entered.
  • the detection means 1 28 is moved to the controller 1 29 from the first detecting means.
  • the turning angle signal G is input.
  • the first turning control signal g from the controller 12 9 is input to the control valve 1 27, but before and after both drive wheels 2 where the traversing cylinder 4 1 is operated in the middle.
  • the orientation is maintained.
  • the turning cylinder 1 07 is slightly extended by the control of the opto roll 1 14 based on the rotation operation of the operating handle 2 2, and the steered wheel 100 is turned right. .
  • both hydraulic pumps 51 are driven in different amounts by the first turning control signal g, and thus the rotational speed 1 30 C of the right drive wheel 2 with respect to the rotational speed 130 B of the left drive wheel 2.
  • the side fork-type transfer vehicle is turned B1 to the right by a large radius due to the difference in the number of rotations.
  • the detection means 1 28 in FIG. 14A and FIG. The second turning angle signal H is input to la 1 2 9.
  • the second turning control signal h from the controller 12 9 is input to the control valve 1 27, but the front and rear directions of the two drive wheels 2 with the traversing cylinder 4 1 being operated in the intermediate position. Posture is maintained.
  • the turning cylinder-107 is further extended and the steered wheels 100 are turned in the horizontal direction. Is done. Further, the right hydraulic pump 51 is stopped and the left hydraulic pump 51 is driven by the second turning control signal h, so that only the left driving wheel 2 is driven at the intermediate rotation speed of 130 D. As a result, the side fork-type transport vehicle turns B 2 to the right at the middle radius.
  • the third turning from the detecting means 128 to the controller 121 is performed in (b) of FIGS. 14 and 18.
  • the turning angle signal I is inserted.
  • the third turning control signal i from the controller 12 9 is input to the control valve 1 27, and the front and rear directions of the two drive wheels 2 with the traversing cylinder 4 1 being operated in the intermediate position. Posture is maintained.
  • the turning cylinder 107 is further extended and the steered wheels 100 are turned obliquely backward.
  • the third hydraulic control pump i drives the left hydraulic pump 51 forward at an intermediate rotation speed of 130 D and the right hydraulic pump 51 backwardly at an intermediate rotation speed of 130 E by the third swing control signal i. Accordingly, the side fork-type transfer vehicle is turned B 3 to the right with a small radius, together with the drive rotations in the opposite directions to each other.
  • the left and right drive wheels 2 are rotated in a state in which the rear end sides are inclined so as to approach each other (a predetermined angle), and the left drive wheel 2 is driven forward at an intermediate rotational speed of 130 D. And the right drive wheel 2 is driven backward at an intermediate rotation speed of 130 E, whereby the side fork-type transfer vehicle makes a turn C in place.
  • the turning center ⁇ is located in the vehicle body 1, so that the in-turn C can be performed with a small turning radius.
  • the side fork-type transport vehicle that travels as described above stops its normal travel, including turning, and then turns, for example, by operating a lever-type traverse mode switch (not shown). By activating means 40, the trip can be switched to traverse D.
  • a transverse mode signal K similar to the second turning angle signal H is input to the controller 1229.
  • the traversing cylinder 41 is extended by the traversing control signal k from the controller 12 9 being input to the control valve 127.
  • the pivot member 33 on one side is rotated around the vertical axis center 36 via the link 45, and the rotating member 33 via the vertical axis 35, the arm 47, the link body 48, etc.
  • the rotating member 33 on the other side is rotated around the vertical axis center 36, and as a result, as shown in (b) of FIG.
  • the two drive wheels 2 are turned 90 degrees relative to the vehicle body 1 (turned straight sideways).
  • the drive wheels 2 are each integrated with the hydraulic motor 30, the turning can be easily and smoothly performed, and the longitudinal axis 36 is located right above the drive wheels 2. Therefore, the driving wheel 2 can be turned 90 degrees in a compact manner.
  • the turning cylinder 100 is extended by the control of the obviator roll 114 based on the rotation operation of the operation handle 222, and the steered wheels 100 are placed sideways. It is turned to the shape direction.
  • the sensor 1 detects that the drive wheel 2 and the steered wheel 100 have turned 90 degrees in a direction, that is, that the drive wheel 2 and the steered wheel 100 have turned straight sideways.
  • the indicator lamp is turned on, which enables the traversing mode. Therefore, by driving the drive wheels 2 in the forward and reverse directions via the hydraulic motor 30, the transport vehicle can be traversed right and left.
  • the direction of the Cass wheel 120 is automatically changed to 90 degrees, and the following rotation is performed. Will be performed.
  • the contraction action chambers of the traversing cylinder 41 and the turning cylinder 107 have a small width during such traversing travel. Since it is secured, this clearance can be used to perform position, turning, correction, etc. at traverse D. That is, by moving the piston rod 43 left and right within the range of the loose width (up to about 30 ° left and right), it is possible to perform the position, the turning, and the correction in the traverse D.
  • a plurality of downward cylinders 200 are provided at a plurality of lower portions of the vehicle body 1, that is, at two locations before and after the fork 10 protruding side, and the cylinder rods of these cylinders 200 are provided.
  • an over-trigger trigger 201 At the lower end of the vehicle, there is provided an over-trigger trigger 201 that can freely contact and separate from the floor.
  • a pair of left and right turning wheels 203 A and 203 B and a pair of left and right The drive wheels 204 A and 204 B are respectively provided so as to be able to turn 90 degrees with respect to the vehicle body 1 (to be able to turn sideways).
  • a pair of left and right turning wheels 203 A and 203 B are mounted so that their rim portions can freely rotate through a horizontal axle 206 etc. to the vertical plate portion of the turning member 205.
  • the horizontal plate portion of the revolving member 205 is provided rotatably around the longitudinal axis 209 with respect to the vehicle body 1 via the bearings 207 and the longitudinal axis 209. Have been killed.
  • a turning wheel turning means 210 is provided for turning a pair of right and left turning wheels 203 A and 203 B around the longitudinal axis 209.
  • the diverting wheel rotating means 210 is formed by the diverting cylinder 221 and the diverting wheels 213 A, 213 B by the expansion and contraction movement of the diverting cylinder 211. It is composed of link mechanisms 217A, 217B, etc. that rotate
  • the conversion cylinder 2 1 1 includes a left-right cylinder body 2 1 2 and a pair of bolts 2 2 disposed in the cylinder body 2 1 2.
  • the cylinder body 2 1 2 is attached to the vehicle body 1 with the length direction of the cylinder body 2
  • outer working chambers 21A and 21B are formed on the outer surfaces of the pistons 21A and 21B, respectively, and the pistons 21A and 21B are formed.
  • a common inner working chamber 2 16 is formed between the opposing surfaces of 3B.
  • the left and right widths (lengths) of the inner working chamber 2 16 are formed to the shortest width 2 16 e when the inner end portions 2 14 a and 2 14 b are brought into contact with each other.
  • the longest width 2 16 E is formed when the tonnes 2 13 A and 2 13 B reach the outer ends.
  • the link mechanisms 2 17 A and 2 17 B are composed of arm bodies 2 18 A and 2 18 B connected from both longitudinal axes 208 and these arm bodies 2 18 A and 2 1 It is composed of links 220A, 220B, etc., which are connected to 8B via connecting pins 211A, 219B so as to be relatively rotatable.
  • the free ends of the links 220A and 220B and the outer ends of the pistons 21A and 21B are connected to the connection bins 22A and 22B. It is connected so that it can rotate relatively.
  • the turning cylinder 2 11 is configured to perform a left-right operation with an orbit roll (fully hydraulic power steering) 2 25 by turning an operation handle 22. That is, the oil passage from the orbit roll 2 25 is connected to the outer working chambers 2 15 A and 2 15 B. Non-return valves (double check valves) 22 A and 22 B are interposed in the oil passage from the orbit roll 2 25 to the turning cylinder 2 11.
  • the conversion cylinder 2 11 1 operates both control valves 2 28 A and 2 28 B, so that both pistons 2 13 A, 2 1 3 B are configured to be individually operable. That is, the oil passages from the control valves 2 228 A and 228 B are connected to the outer working chambers 2 15 A and 2 15 B and the inner working chamber 2 16 respectively.
  • the control valves 228A and 228B an electromagnetic proportional control type or the like is adopted.
  • Rotation amount detection means 22A and 22B are provided.
  • the vertical axis 208 is provided via the links 220A, 220B and the arm bodies 218A, 218B.
  • the turning wheels 203 A and 203 B can be turned around the vertical axis 209 via the turning member 205 or the like, and can be turned right beside. That is, the left and right diverting wheels 203 A and 203 B are configured to be turned in opposite directions to each other and to be directed sideways by the extension operation of the turning cylinder 211.
  • the pair of left and right turning wheels 203 A, 203 B are rotated around the vertical axis center 209.
  • An example of the turning wheel rotating means 210 is configured.
  • the solid lines in FIG. 20, FIG. 21, and FIG. 22 and (a) in FIG. 23 indicate a pair of left and right turning wheels 203 A and 203 B and a pair of left and right driving wheels 204 A. , 204 B are oriented in the front-rear direction, indicating that the vehicle is traveling straight in normal traveling.
  • the inner ends 2 14 a and 2 14 b of the piston rods 2 14 A and 2 14 B are brought into contact with each other, and the inner working chamber 2 16 has a minimum width 2 16 e.
  • Formed and left and right outer working chambers 2 15 A , 2 15 B are formed in a uniform left and right width (length).
  • each of the triggers-201 is lowered by the extension movement and is brought into contact with the floor, thereby preventing the body 1 from falling.
  • the vehicle is turned according to the operation of the operation handle 22. That is, for example, by turning the operation handle 22 to the right, the turning cylinder 2 11 1 is actuated by the control flow from the opto roll 2 25, and as shown in FIG.
  • both piston rods 2 14 A and 2 14 B are connected so that the left outer working chamber 2 15 A is enlarged and the right outer working chamber 2 15 B is reduced. -Moved to the right side simultaneously (simultaneously).
  • Such a rightward movement of the piston rods 21A and 21B is transmitted to the vertical axis 208 via the link mechanisms 21A and 21B.
  • the turning wheels 203A and 203B can turn to turn right.
  • a left turn can be performed by performing the reverse action in the same manner.
  • the turning cylinder 2 1 1 When the in-situ turning mode is selected, the turning cylinder 2 1 1 is actuated to the left and right as shown in (b) of FIG. 24, that is, both pistons 2 1 3 A, 2 13 B reach the outer end and the inner working chamber 2 16 is formed with the longest width 2 16 E, whereby the right and left turning wheels 203 A, 203 B are The rear ends are turned to be inclined away from each other. Before or after this, the rotating means 40 is actuated, and the left and right driving wheels 204 A, 204 B are inclined so that the rear ends approach each other. Will be converted This enables a turn on the spot, and at that time, the setting to the turn on the spot mode can be performed regardless of the operation position of the operation handle 22.
  • a lever type traversing mode switch (not shown) is operated, and the turning means 40 and the turning wheel turning means 210 are operated. Activate. That is, in the rotating means 40, by operating the traversing cylinder 41 in the same manner as described above, as shown in FIG. 23 (b), the driving wheels 204A and 204D are driven. B is turned 90 degrees with respect to body 1 (turned right beside).
  • both piston rods 214A and 214B are controlled by the control flow from the respective control valves 222A and 228B.
  • the swiveling member 205 is extended and retracted to the specified position, and is rotated around the longitudinal axis 209 via the link mechanisms 217A and 217B.
  • the turning wheels 203A and 203B are turned 90 degrees with respect to the vehicle body 1. (Turn right beside).
  • the position specified at that time is controlled by detecting the sensors 22A and 22B.
  • the setting to the traversing mode can be performed regardless of the operation position of the operation handle 22.
  • the turning wheels 203A and 203B and the driving wheels 204A and 204B were turned, that is, turning wheels 203A and 203B.
  • the drive wheels 204 A and 204 B are turned to the right side by the sensors 23 A and 22 B, etc., and the indicator lamps are turned on. Mode is enabled.
  • a pair of hydraulic pumps driven by the engine 4 The hydraulic pressure from 51 is supplied to the corresponding hydraulic motor 30 through the pipe 52 by forward / reverse control in the driver's seat 21, so that the drive wheels 204 A and 204 B are supplied.
  • the side fork-type transfer vehicle can be traversed right and left by driving in the opposite direction. At that time, the pair of left and right turning wheels 203 A and 203 B are rotated following.
  • the outer working chambers 2 15A and 2 15B each secure a small width during such traversing.
  • the position, turning, and correction during traversing can be performed.
  • both piston rods 2 14 A and 2 14 B are simultaneously moved left and right by the control flow from the opto roll 2 25. This makes it possible to perform position, turning, and correction for traversing.
  • the on-the-fly turning mode and the traversing mode are released by returning the piston to the specified position (neutral position or a position matching the sensor of the operation handle 22).
  • a check valve is provided for the separation between the piston rods 2 14 A and 2 14 B due to valve leakage during normal running, and the outer working chamber 2 15 A, 2 15 B is pressed and brought into contact with each other.
  • the turning from the traversing straight as shown in (a) of Fig. 23 is the turning
  • the drive wheels 204 A and 204 B are tilted so that their rear ends are separated from each other, as shown in Fig. 25 (a), in accordance with the angle of cut of the wheels 203A and 203B.
  • a sloping traverse right-turning posture with the skewed state or a traversing left-sided slewing posture with the rear end sides inclined so as to approach each other as shown in (b) of Fig. 25 can provide a smoother conversion.
  • the position with the handle knob is adjusted.
  • the sensor can be installed at the operation handle 22 and returned to a position that matches the position of the operation handle 22, thereby preventing the knob from slipping.
  • this system is used at the time of turning of normal driving, it is possible to control the knob roll of the opto roll 2 25.
  • the side fork-type transport vehicle does not move during the setting to the traversing mode, and the mode cannot be switched unless the side fork-type transport vehicle is stopped. There can be almost no restrictions on people.
  • V Other cargo handling controls can be performed.
  • the traversing cylinder 41 is shown as a driving source of the rotating means 40, but this may be an electric motor or a hydraulic motor.
  • the traversing cylinder 41 that acts on the both driving wheels 2 (also serves as a driving source) of the rotating means 40 is shown.
  • this may be a left and right independent traversing cylinder, electric motor, hydraulic motor, or the like.
  • the running mode can be freely switched by controlling the independent drive sources individually.
  • a two-pump two-motor type hydraulic drive system is adopted as the drive type of the side fork-type transfer vehicle, but this is a one-pump two-motor type hydraulic drive system.
  • a drive system or the like may be employed. In this case, it is particularly suitable for the parallel movement mode.
  • a free-traveling side-fork-type transport vehicle that is used for transporting heavy objects and the like is shown.
  • a pickup coil provided on the vehicle body side is used.
  • a side fork-type transfer vehicle that can travel on a fixed automated transfer line or the like by catching electromagnetic waves on the floor-side guide wire may be used.
  • the four-wheel type in which the pair of left and right drive wheels 2 and the pair of left and right drive wheels 3 are provided is shown. It may be a three-wheel type provided with a turning wheel 3 at the center and one (one wheel).
  • the turning angle at the operation handle 22 is detected by the detection means 1 28.
  • this may be a form in which the steering angle at the steering wheel 100 is detected by the detecting means 128.
  • a side fork-type transfer vehicle capable of turning to the right is shown, but this is achieved by arranging the steered wheels 100 to the left, It can be a side fork-type transport vehicle that can turn to the side.
  • the turning is performed in three stages B 1 to B 3 Although it is described as a form, this may be a form that is performed in one step or in multiple steps other than three steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Automation & Control Theory (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

Un véhicule de transport du type à fourche latérale, ce par quoi, lorsque le véhicule circule droit devant en un mode de circulation normale dans lequel une paire de roues motrices de droite et de gauche (2) et de roues directrices (3) font face à la direction longitudinale, le véhicule peut être tourné dans les directions de droite et de gauche par une différence de vitesses des deux roues motrices (2) et, quand un mode de giration stationnaire est sélectionné, un organe de rotation (40) est mis en oeuvre d'une quantité spécifiée pour braquer les roues motrices de droite et de gauche (2) dans l'état d'être inclinées de façon que leurs côtés de l'extrémité arrière sont rapprochées l'une de l'autre et une pression hydraulique est alimentée depuis une pompe hydraulique (10) entraînée par un moteur (4) vers un moteur hydraulique (30) de façon à entraîner les roues motrices (2) dans les directions avant et arrière, de façon que le véhicule peut être tourné en stationnaire avec un petit cercle tournant et ensuite, lorsqu'un mode de déplacement latéral est sélectionné, l'organe de rotation (40) est mis en oeuvre de façon à mettre en rotation un élément tournant (33) autour d'un axe vertical (36) de façon à braquer les deux roues motrices (2) à 90° par rapport à une carrosserie (1) et les roues motrices (2) peuvent être entraînées dans les directions avant et arrière au travers du moteur hydraulique (30) de façon à faire circuler le véhicule en direction latérale, ce par quoi une variété de modes de circulation tels que la criculation latérale, la giration stationnaire et un mouvement parallèle sont rendus possibles.
PCT/JP2000/002947 1999-06-14 2000-05-08 Vehicule de transport du type a fourche laterale Ceased WO2000076902A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP11/166124 1999-06-14
JP16612499A JP3375569B2 (ja) 1999-06-14 1999-06-14 サイドフォーク式搬送用車両
JP11/166125 1999-06-14
JP16612599A JP3375570B2 (ja) 1999-06-14 1999-06-14 横行システムを持ったフォークリフト
JP11/198257 1999-07-13
JP19825799A JP3403673B2 (ja) 1999-07-13 1999-07-13 サイドフォーク式搬送用車両

Publications (1)

Publication Number Publication Date
WO2000076902A1 true WO2000076902A1 (fr) 2000-12-21

Family

ID=27322630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/002947 Ceased WO2000076902A1 (fr) 1999-06-14 2000-05-08 Vehicule de transport du type a fourche laterale

Country Status (1)

Country Link
WO (1) WO2000076902A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2369333A (en) * 2000-11-28 2002-05-29 Nippon Yusoki Co Ltd Forklift truck steering mode control
US8701801B2 (en) 2010-06-09 2014-04-22 Ntn Corporation Electric vehicle
AT518165B1 (de) * 2016-03-25 2017-08-15 Bulmor Holding Gmbh Fahrzeug mit seitlicher Hubeinrichtung
AT518164B1 (de) * 2016-03-25 2017-08-15 Bulmor Holding Gmbh Fahrzeug mit seitlicher Hubeinrichtung
WO2018018057A1 (fr) * 2016-07-26 2018-02-01 Bulmor Holding Gmbh Engin pourvu d'un système de levage latéral
CN110155166A (zh) * 2019-06-03 2019-08-23 衡阳市利美电瓶车制造有限责任公司 一种全角度转向系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823899A (en) * 1986-07-10 1989-04-25 Ashot Ashkelon Industries Ltd. Steering apparatus
JPH01168580A (ja) * 1987-12-22 1989-07-04 Toyota Autom Loom Works Ltd 産業車両における旋回制御装置
JPH02306879A (ja) * 1989-05-22 1990-12-20 Kaaneru:Kk 自走式作業台車
JPH03235762A (ja) * 1990-02-09 1991-10-21 Nippon Sharyo Seizo Kaisha Ltd 走行車両のステアリング装置
US5325935A (en) * 1993-05-18 1994-07-05 Nippon Yusoki Co., Ltd. Reach forklift
JPH09124290A (ja) * 1995-10-30 1997-05-13 Nippon Yusoki Co Ltd 長尺物保管・搬送装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823899A (en) * 1986-07-10 1989-04-25 Ashot Ashkelon Industries Ltd. Steering apparatus
JPH01168580A (ja) * 1987-12-22 1989-07-04 Toyota Autom Loom Works Ltd 産業車両における旋回制御装置
JPH02306879A (ja) * 1989-05-22 1990-12-20 Kaaneru:Kk 自走式作業台車
JPH03235762A (ja) * 1990-02-09 1991-10-21 Nippon Sharyo Seizo Kaisha Ltd 走行車両のステアリング装置
US5325935A (en) * 1993-05-18 1994-07-05 Nippon Yusoki Co., Ltd. Reach forklift
JPH09124290A (ja) * 1995-10-30 1997-05-13 Nippon Yusoki Co Ltd 長尺物保管・搬送装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2369333A (en) * 2000-11-28 2002-05-29 Nippon Yusoki Co Ltd Forklift truck steering mode control
FR2817543A1 (fr) * 2000-11-28 2002-06-07 Nippon Yusoki Co Ltd Vehicule de manutention de charges
GB2369333B (en) * 2000-11-28 2004-11-10 Nippon Yusoki Co Ltd Cargo handling vehicle
US6901323B2 (en) 2000-11-28 2005-05-31 Nippon Yusoki Co., Ltd. Cargo handling vehicle
US8701801B2 (en) 2010-06-09 2014-04-22 Ntn Corporation Electric vehicle
AT518165B1 (de) * 2016-03-25 2017-08-15 Bulmor Holding Gmbh Fahrzeug mit seitlicher Hubeinrichtung
AT518164B1 (de) * 2016-03-25 2017-08-15 Bulmor Holding Gmbh Fahrzeug mit seitlicher Hubeinrichtung
AT518165A4 (de) * 2016-03-25 2017-08-15 Bulmor Holding Gmbh Fahrzeug mit seitlicher Hubeinrichtung
AT518164A4 (de) * 2016-03-25 2017-08-15 Bulmor Holding Gmbh Fahrzeug mit seitlicher Hubeinrichtung
WO2018018057A1 (fr) * 2016-07-26 2018-02-01 Bulmor Holding Gmbh Engin pourvu d'un système de levage latéral
CN110155166A (zh) * 2019-06-03 2019-08-23 衡阳市利美电瓶车制造有限责任公司 一种全角度转向系统

Similar Documents

Publication Publication Date Title
US6557658B1 (en) Forklift having transverse travel system
US7900732B2 (en) Fork lift truck with a single front wheel
US6913102B2 (en) Working vehicle with traversing system
US6206127B1 (en) Lead wheel steering system for a gantry crane
US20100230201A1 (en) Three-wheel forklift truck
CN1321051C (zh) 具有横向移动系统的工程车辆
US6732831B2 (en) Fork lift with laterally travelling system
EP1327602A1 (fr) Vehicule utilitaire pourvu d'un systeme a deplacement lateral
WO2000076902A1 (fr) Vehicule de transport du type a fourche laterale
US7117962B2 (en) Articulated forklift truck
JP3375569B2 (ja) サイドフォーク式搬送用車両
JP3375570B2 (ja) 横行システムを持ったフォークリフト
JP3403673B2 (ja) サイドフォーク式搬送用車両
JP3140014B2 (ja) 横行システムを持ったフォークリフト
KR20020046094A (ko) 사이드포크식 반송용 차량
JPH03258661A (ja) 高所作業車の操向機構
JP3272341B2 (ja) 横行システムを持った作業車両
JP3140013B2 (ja) 横行システムを持ったフォークリフト
JP2002104225A (ja) サイドフォーク式搬送用車両
JP2002104226A (ja) 横行システムを持った車両
JP2001226090A (ja) 横行システムを持った作業車両
JP2002087316A (ja) 横行システムを持った作業車両
JP2000309497A (ja) 横行システムを持ったフォークリフト
IE20030493U1 (en) Articulated forklift truck

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase