EP1479644A1 - Flurförderzeug mit mindestens zwei Funktionsantrieben - Google Patents
Flurförderzeug mit mindestens zwei Funktionsantrieben Download PDFInfo
- Publication number
- EP1479644A1 EP1479644A1 EP04010596A EP04010596A EP1479644A1 EP 1479644 A1 EP1479644 A1 EP 1479644A1 EP 04010596 A EP04010596 A EP 04010596A EP 04010596 A EP04010596 A EP 04010596A EP 1479644 A1 EP1479644 A1 EP 1479644A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- industrial truck
- drive
- drives
- truck according
- functional
- 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.)
- Granted
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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
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
Definitions
- the invention relates to an industrial truck with at least two functional drives.
- Industrial trucks of this type are available in many designs, for example as pallet trucks or as a counterbalance forklift, with internal combustion engine or electric drive and with different lifting functions. Usually these devices are designed that the highest possible productivity in the transport tasks to be performed is achieved. Powerful energy sources are used for it enable various functional drives, for example for lifting a load and tilting the mast and driving the truck at the same time press and save time. This is particularly the case in continuous operation noticeable if a high throughput is to be achieved.
- the invention is therefore based on the object of at least one industrial truck To create two functional drives, which is easy with full functionality is constructed and inexpensive to manufacture.
- the at least two function drives have at least one drive motor less than there are functional drives, can be operated alternately. This is compared to an arrangement in which each function drive has its own drive motor, at least one Drive motor saved.
- all of the functional drives are included exactly one drive motor can be operated.
- a very simple construction is possible for all functional drives, in particular as far as the power supply of the drive motor is concerned.
- At least one of the Function drives a travel drive.
- Travel drives usually have a large one Power consumption, therefore drive motors are suitable for the travel drive are also suitable for the operation of most other functions.
- At least one of the Function drives a hydraulic pump unit.
- Hydraulic power units for example for a linear actuator, usually have a large power consumption, therefore, drive motors that are suitable for driving hydraulic units are also suitable for the operation of most other functions.
- a vehicle brake is used when the travel drive is not in operation can be activated. This prevents the vehicle from moving when the Travel drive is deactivated.
- At least one is hydraulic Steering pump for operating at least one hydraulic function drive usable. This enables the hydraulic pump unit for the functional drive can be made smaller or even eliminated entirely.
- the at least two functional drives are advantageously by means of one common coupling device connectable to the drive motor.
- a common coupling device reduces construction costs, especially since the Drive motor only requires an output shaft.
- a braking device is advantageously integrated in the coupling device. This saves installation space and an automatic brake application The drive cannot be operated easily.
- travel drives are Coupling device and drive motor designed as a structural unit. Thereby a particularly simple construction with a few housing parts is achieved.
- the drive motor is as Electric motor trained. Electric motors are quiet and emission-free and therefore as Drives for industrial trucks particularly suitable for indoor use.
- Figure 1 shows the front axle area of a forklift according to the invention.
- Drive wheels 1 are attached to a front axle 2.
- a travel drive 3 comprises in addition to wheel transmissions 4 and a storage brake 5, a differential 6 and a transmission 7 and is summarized as a front axle unit.
- the gear 7 is operatively connected to an electric motor 10.
- the coupling device 8 makes it possible, alternately, via a coupling 11 Travel drive 3 or via a further clutch 12 to a hydraulic pump 13 operate.
- the drive motor 10 and the drives 3, 13 be operated at optimal speed. Execution forms are also possible, where a reversal of the direction of motion of the drives in this way is realized.
- a hydraulic steering pump for a likewise not shown is not shown hydraulic steering device, which is operated by a separate drive motor.
- the individual components are controlled according to the state of the art, for example, via an electronic control unit, not shown here, which its Receives specifications from controls that are operated by an operator. This control unit also carries out the fault monitoring of the components the usual procedures for this.
- the drive 3 is engaged and the storage brake 5 is released, the The vehicle is in the driving state.
- the hydraulic pump 13 is deactivated, can hydraulically operated functions such as a linear actuator or Tilt cylinders are not operated and are secured against adjustment. Is not a Operated control element for the drive 3, the brake 5 is activated automatically and prevents the truck from rolling away.
- the Delay with which the truck brakes when the controls are released is adjustable, for example depending on the load or the Driving speed to avoid abrupt maneuvers.
- the electric motor 10 is switched off as long as no drive activity is required. When the Brake 5 by the operator remain drive 3 and electric motor 10 to Standstill coupled to the electric motor 10 in generator operation To use energy recovery.
- the hydraulic pump for a hydraulic steering device is permanently with a separate drive motor in operative connection. This ensures that the Steering is operational in all operating conditions. Via a priority circuit according to the prior art, it is possible to use the hydraulic pump in addition to the Steering device to supply further hydraulic drives. This allows when the power of the steering pump is not completely required for the steering process, other hydraulically operated functions, such as a linear actuator or Tilt cylinders are operated and so these functions are restricted be operated when the hydraulic pump 13 is deactivated. Is the hydraulic pump 13 activated, the travel drive 3 is deactivated at the same time, and the steering is not permanently needed. The steering pump is therefore practically full power for the Further hydraulic drives are available. Therefore the Hydraulic pump 13 less power than when it is supplying the hydraulic Drives would have to take over on their own and can be made smaller and thus smaller run easier and cheaper.
Abstract
Description
- Figur 1
- eine erfindungsgemäße Antriebsvorrichtung für einen Gabelstapler mit aktiviertem Fahrantrieb,
- Figur 2
- eine erfindungsgemäße Antriebsvorrichtung für einen Gabelstapler mit aktivierter Hydraulikpumpe.
Claims (14)
- Flurförderzeug mit mindestens zwei Funktionsantrieben (3, 13), dadurch gekennzeichnet, dass die mindestens zwei Funktionsantriebe (3, 13) ausschließlich wechselweise betreibbar sind.
- Flurförderzeug nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens zwei Funktionsantriebe (3, 13) mit mindestens einem Antriebsmotor (10) weniger, als Funktionsantriebe (3, 13) vorhanden sind, wechselweise betreibbar sind.
- Flurförderzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sämtliche Funktionsantriebe (3, 13) mit genau einem Antriebsmotor (10) betreibbar sind.
- Flurförderzeug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens einer der Funktionsantriebe (3,13) ein Fahrantrieb (3) ist.
- Flurförderzeug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass mindestens einer der Funktionsantriebe (3, 13) ein hydraulisches Pumpaggregat (13) ist.
- Flurförderzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass eine Fahrzeugbremse (5) vorgesehen ist, die bei Nichtbetrieb des Fahrantriebs (3) selbsttätig aktivert wird.
- Flurförderzeug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Flurförderzeug bei Vorliegen einer Fehlfunktion selbsttätig, vorzugsweise durch Deaktivieren des Fahrantriebes (3) und/oder Betätigen der Fahrzeugbremse (5), abstoppbar ist.
- Flurförderzeug nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass mindestens eine hydraulische Lenkpumpe zum Betrieb-mindestens eines hydraulischen Funktionsantriebes (13) verwendbar ist.
- Flurförderzeug nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Auswahl des zu betreibenden Funktionsantriebs (3, 13) in Abhängigkeit von der Betätigung der Bedienelemente zur Steuerung der Funktionsantriebe (3, 13) erfolgt.
- Flurförderzeug nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die mindestens zwei Funktionsantriebe (3, 13) mittels einer gemeinsamen Kupplungsvorrichtung (8) mit dem Antriebsmotor (10) verbindbar sind.
- Flurförderzeug nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass zwischen Antriebsmotor (10) und Kupplungsvorrichtung (8) ein Getriebe (9) angeordnet ist.
- Flurförderzeug nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass eine Bremsvorrichtung in der Kupplungsvorrichtung (8) integriert ist.
- Flurförderzeug nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass Fahrantrieb (3), Kupplungsvorrichtung (8) und Antriebsmotor (10) als bauliche Einheit ausgebildet sind.
- Flurförderzeug nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass der Antriebsmotor (10) als Elektromotor ausgebildet ist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10322716 | 2003-05-20 | ||
DE10322716 | 2003-05-20 | ||
DE10332048A DE10332048A1 (de) | 2003-05-20 | 2003-07-15 | Flurförderzeug mit mindestens zwei Funktionsantrieben |
DE10332048 | 2003-07-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1479644A1 true EP1479644A1 (de) | 2004-11-24 |
EP1479644B1 EP1479644B1 (de) | 2007-03-07 |
Family
ID=33099317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040010596 Expired - Lifetime EP1479644B1 (de) | 2003-05-20 | 2004-05-04 | Flurförderzeug mit mindestens zwei Funktionsantrieben |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1479644B1 (de) |
DE (1) | DE502004003101D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019179726A1 (de) * | 2018-03-20 | 2019-09-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Bremsvorrichtung |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB707296A (en) * | 1950-12-16 | 1954-04-14 | Rubery Owen & Co Ltd | Improvements in fork-lift trucks |
US3216599A (en) * | 1962-10-15 | 1965-11-09 | Grand Specialties Company | Lift truck with a detachable mast assembly, and a propelling and elevating control system |
GB1441445A (en) * | 1972-09-01 | 1976-06-30 | Crown Controls Corp | Multi-function controller for a self-propelled lift truck |
US4755100A (en) * | 1985-11-12 | 1988-07-05 | Clark Equipment Company | Operator control system |
DE19510717A1 (de) * | 1995-03-24 | 1996-09-26 | Jungheinrich Ag | Elektrische Lenkvorrichtung für Flurförderzeuge |
DE19752022A1 (de) * | 1997-11-24 | 1999-05-27 | Linde Ag | Fahrzeug mit einem elektrischen Fahrantrieb und einer Feststellbremseinrichtung |
US20010031196A1 (en) * | 1998-10-02 | 2001-10-18 | Nippon Yusoki Co., Ltd. | Single lever with button for selectively controlling either tilt or lift of a forklift mechanism |
-
2004
- 2004-05-04 EP EP20040010596 patent/EP1479644B1/de not_active Expired - Lifetime
- 2004-05-04 DE DE200450003101 patent/DE502004003101D1/de not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB707296A (en) * | 1950-12-16 | 1954-04-14 | Rubery Owen & Co Ltd | Improvements in fork-lift trucks |
US3216599A (en) * | 1962-10-15 | 1965-11-09 | Grand Specialties Company | Lift truck with a detachable mast assembly, and a propelling and elevating control system |
GB1441445A (en) * | 1972-09-01 | 1976-06-30 | Crown Controls Corp | Multi-function controller for a self-propelled lift truck |
US4755100A (en) * | 1985-11-12 | 1988-07-05 | Clark Equipment Company | Operator control system |
DE19510717A1 (de) * | 1995-03-24 | 1996-09-26 | Jungheinrich Ag | Elektrische Lenkvorrichtung für Flurförderzeuge |
DE19752022A1 (de) * | 1997-11-24 | 1999-05-27 | Linde Ag | Fahrzeug mit einem elektrischen Fahrantrieb und einer Feststellbremseinrichtung |
US20010031196A1 (en) * | 1998-10-02 | 2001-10-18 | Nippon Yusoki Co., Ltd. | Single lever with button for selectively controlling either tilt or lift of a forklift mechanism |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019179726A1 (de) * | 2018-03-20 | 2019-09-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Bremsvorrichtung |
CN111867903A (zh) * | 2018-03-20 | 2020-10-30 | 克诺尔商用车制动系统有限公司 | 制动装置 |
JP2021516189A (ja) * | 2018-03-20 | 2021-07-01 | クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツングKnorr−Bremse Systeme fuer Nutzfahrzeuge GmbH | ブレーキ装置 |
EP3768561B1 (de) | 2018-03-20 | 2023-04-26 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Bremsvorrichtung |
JP7416709B2 (ja) | 2018-03-20 | 2024-01-17 | クノル-ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング | ブレーキ装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1479644B1 (de) | 2007-03-07 |
DE502004003101D1 (de) | 2007-04-19 |
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