Jungheinrich Aktiengesellschaft

Erno Raumfahrttechnik Gmbh

Jungheinrich Aktiengessellschaft

Jungheintich Atkiengesellschaft

Juugheinrich Aktiengesellschaft

Jungheinrick Aktiengesellschaft

Ralf Baginski

Rainer Bruns

Nis-Georg Nissen

Frank Manken

Martin Von Werder

Frank M&auml;nken

Hans-Peter Claussen

Paul Rickers

Matthias Kube

Hans-Joachim Doss

Andreas Klatt

Nikolaus Eggert

Michael Niebuhr

Andreas Rogg

Stefan Steiger

Frank Mänken

Roland Felkai

George Nissen

Jochen Korner

Frank M{overscore (a)}nken

Martin VonWerder

Ing Torsten Hunte

Ernst Peter Magens

An industrial truck with an electronic memory and/or a data transfer unit, an equipment for acquiring utilization data and a control unit, which is connected with the equipment for acquiring utilization data and the memory and/or the data transfer unit, characterized in that the control unit continuously generates an utilization protocol from the acquired utilization data and files it in the memory or transmits it to the data transfer unit.

Industrial truck with acquirement of utilization data

Industrial truck with a display unit for an operator and with a sending and receiving unit directed towards the load pick-up region, which can receive sent data from load goods and from load supports, and an analyzing unit, which displays the received data in the display unit, wherein the analyzing unit examines the data received from a load good with respect to transportation conditions and displays existing transportation conditions in the display unit.

Industrial truck with a display unit for the operator

An industrial truck with at least one antenna for sending and receiving data from and/or to an RFID transponder, characterized in that the antenna has a network of wires, which are embedded in a flexible material.

Industrial truck with at least one antenna for sending and receiving data

An industrial truck with a load supporting device, a sending and receiving unit, the sending and receiving range of which is directed towards a region of the load supporting device and towards a region in front of the load supporting device, and a control unit, which activates the sending and receiving unit for the reception of data from external senders, a sensor being provided which detects a load on the load supporting device and triggers an activation of the sending and receiving unit via the control unit when the sensor has detected a load, characterized in that the sensor is integrated into a housing for the sending and receiving unit.

Industrial truck with a load supporting means

Driving system for a an industrial truck with a combustion engine, a two-branch gear transmission whose first shaft is coupled to the combustion engine, whose second shaft is coupled to a change-over transmission, whose outlet acts on the driven wheels of the industrial truck via a collecting transmission, an electric transmission of which a first electric machine cooperates therewith, with respect to the torque, using the two-branch gear transmission, and a second electric machine is coupled via at least one collecting transmission to the driven wheels, the two-branch gear transmission producing a constant torque ratio between the first electric machine and at least the first and second shaft and an electrical circuit arrangement electrically coupling the electric machines and being connected to an electric accumulator,

Driving system for an industrial truck

A method for influencing the torque on at least one driving wheel of an industrial truck for the purpose of driving and/or braking it wherein the torque of a driving motor for the industrial truck is reduced by means of a slip regulator at an appropriate amount depending on the slip by determining the slip between the driving wheel and the floor by making a comparison of the circumferential speed measured or calculated for the driving wheel and the vehicle travelling speed measured for the industrial truck, and comparing it to a set-point.

Method for influencing the torque on at least one driving wheel of an industrial truck

A driving system for an industrial truck, comprising: a combustion engine, an electric motor fed from a battery, a gear assembly the inputs of which are coupled to the shaft of the combusion engine and the electric motor and the output of which is coupled to the driven shaft of the driving system.

Driving system for industrial trucks

A driving system for an industrial truck, comprising: a combustion engine; a two-branch gear transmission the input of which is coupled to the shaft of the combustion engine and the outputs of which are coupled to a primary shaft and a secondary shaft which are at a fixed speed ratio to each other; an adjustable transmission in the course of the secondary shaft; a gear assembly the inputs of which are coupled to the primary and secondary shafts; a change-over transmission the input of which is coupled to the output of the gear assembly and the output of which is coupled to the driven shaft of the driving system.

An apparatus for controlling a drive system for an industrial truck having an internal combustion engine and a hydrostatic transmission wherein the hydrostatic transmission has a pump the delivery volume of which is variable and at least one hydraulic engine acting on at least one wheel of the industrial truck, comprising a first controller for the speed of the industrial truck in which a desired speed value compares to a actual value arriving from a speed transducer, further in which a speed controller determines a corresponding desired motive force and in which the signal for the motive force and the actual speed is provided to a characteristics stage in which at least one characteristic is stored which assigns approximately optimal rpm values to power values of the internal combustion engine and presets a corresponding desired-value signal for the number of revolutions of the internal combustion engine, and a second controller underlying the first controller having a desired-value and actual-value comparator in which an actual value of the pump arriving from a pressure transducer is compared to desired-pressure value, further in which a pressure controller produces a variation signal for the delivery volume in the pump, wherein a desired-value transducer for the pressure determines the desired value from the desired motive force and parameters of the drive system.

Apparatus for controlling a drive system for an industrial truck

A driving system for an industrial truck having a driving device and at least one unit for working motions of the industrial truck, comprising: A combustion engine; an adjustable transmission coupled to the engine shaft; a gear assembly the first input shaft of which is directly coupled to the shaft of the combustion engine and the second input shaft of which is coupled to the driven shaft of the adjustable transmission; an electric motor the shaft of which is coupled to a third input shaft of the gear assembly; a change-over transmission between the driven shaft of the gear assembly ( ) and the driving wheels of the industrial truck; a battery which is connected to the electric motor via an electronic power unit; a sensor system which measures at least the speeds of the combustion engine, the electric motor, and the output shafts of the change-over transmission and, if necessary, the charging state of the battery and generates appropriate output signals; a shaft coupled to the driving system for driving the unit for the working motions of the industrial truck; a governing device which controls the speed of the motors and the gear ratio of the adjustable transmission and actuates the rotary brake and shifts the change-over transmission according to the desired-value signals of the desired-value transmitters actuated by the driver of the industrial truck and on the basis of the output signals of the sensor system.

The invention relates to a fork-lift truck including a vehicle body which has rear wheels and a lift frame for load-carrying means, and including a wheel bearing means. For an increase in stability in standing of the fork-lift truck, a shifting or pivoting device interacting with the vehicle body is provided, which moves the wheel bearing means with respect to the vehicle body while varying the axle base and the distance of the load center from the front wheel.

Fork lift truck

An industrial truck, particularly a fork-lift truck, wherein the front and rear wheels are supported on a vehicle frame and one of which is adapted to be driven, a load-receiving means which is adjustable at least in height by means of a power-exerting apparatus, and a safety device which detects a tilt of the industrial truck and is in an operative communication at least with an alarm signal emitter, whereby a load sensor is associated with at least one wheel and the safety device has a comparison device which provides a signal to the alarm signal emitter when one or more of the wheel loads measured fall below a preset value.

Industrial truck with a tilt prevention mechanism

A motion controller for a motor-driven transportation truck or trolley with a steering pole that can be swivelled about a horizontal axis attached to a steering shaft or a steering frame and is provided with means for setting the direction of motion and the speed, characterized in that the steering pole is equipped with a sensor means providing an output signal that depends not only on the magnitude of the force applied to the steering pole, but also on whether this force is a push or a pull, and that the system also comprises a feed back controller unit that sets and/or regulates the speed and the direction of rotation of the driving motor according to this output signal.

Motion controller for a motor-driven, pole-conducted transportation truck or trolley

A follower industrial truck including a drive motor, a handle lever having a first end which is linked to a steering shaft of the industrial truck to pivot about a horizontal axis, a handle lever head which is movably mounted with respect to the handle lever in a pull and push manner, a spring arrangement between the handle lever and the head, which biases the head in opposite directions towards a neutral position produces a path signal (S,), the magnitude of the path signal (S,) being approximately proportional to the extent of the deflection, a first controller which produces a first nomimal value (I,) for the current of the drive motor, and a further controller adapted to receive a comparison current value which is achieved by the comparison of the actual current value (I,) of the drive motor and of the first nomimal value (,) from the first controller in order to produce a setting current value for the drive motor.

Follower industrial truck with handle lever

A hydraulic lift apparatus for a battery driven lift truck includes a hydraulic lift cylinder. A hydraulic pump operates as a pump in a load raising mode, so as to feed pressure fluid to the lift cylinder. The hydraulic pump operates as a motor in a load lowering mode. The hydraulic pump is driven by the pressure fluid displaced by the lift cylinder. A direct current machine is coupled to the hydraulic pump, so as to operate as an electric motor in the load raising mode and to operate as a generator in the load lowering mode. A useful brake circuit is energized by the direct current machine in the load lowering mode. A valve assembly is disposed in the pressure fluid path between the lift cylinder and the hydraulic pump. Control apparatus are provided for controlling the valve assembly and including speed regulating apparatus for varying the speed of the direct current machine. At least one secondary hydraulic consumer is adapted to be connected to a hydraulic pressure source via an associated control valve. A lowering branch is provided between the valve assembly and a connection is provided between a check valve and the inlet of the hydraulic pump. The secondary hydraulic consumer receives fluid from the hydraulic pump via the valve assembly. There is provided an externally excited direct current machine having its speed controlled by the speed regulating apparatus in response to operation of the valve assembly.

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Neetze, Germany

Ralf Baginski