EP0411335B1 - Elément de commande de véhicules de transport - Google Patents

Elément de commande de véhicules de transport Download PDF

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Publication number
EP0411335B1
EP0411335B1 EP90112662A EP90112662A EP0411335B1 EP 0411335 B1 EP0411335 B1 EP 0411335B1 EP 90112662 A EP90112662 A EP 90112662A EP 90112662 A EP90112662 A EP 90112662A EP 0411335 B1 EP0411335 B1 EP 0411335B1
Authority
EP
European Patent Office
Prior art keywords
turning handle
operating element
element according
circuit
signal generator
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.)
Expired - Lifetime
Application number
EP90112662A
Other languages
German (de)
English (en)
Other versions
EP0411335A3 (en
EP0411335A2 (fr
Inventor
Gert Dipl.-Ing. Seng (Fh)
Gerard Vesin
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.)
Wagner Foerdertechnik GmbH and Co KG
Original Assignee
Wagner Foerdertechnik GmbH and Co KG
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
Application filed by Wagner Foerdertechnik GmbH and Co KG filed Critical Wagner Foerdertechnik GmbH and Co KG
Priority to AT90112662T priority Critical patent/ATE102372T1/de
Publication of EP0411335A2 publication Critical patent/EP0411335A2/fr
Publication of EP0411335A3 publication Critical patent/EP0411335A3/de
Application granted granted Critical
Publication of EP0411335B1 publication Critical patent/EP0411335B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • G05G1/10—Details, e.g. of discs, knobs, wheels or handles
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H01H2009/068—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner with switches mounted on a handlebar, e.g. for motorcycles, fork lift trucks, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/20612—Hand

Definitions

  • the invention relates to an operating element for industrial trucks, preferably forklift trucks, with a rotary handle for the stepless actuation of a driving gear and with a lifting gear, the rotary handle being designed as a multifunctional handle for one-hand operation of all the steering-independent functions of the industrial truck at the same time and in the area of movement of the thumb of an operator with one on both sides in the circumferential direction the twist grip adjustable signal transmitter is provided for actuating the lift circuit.
  • a handle control device for forklift vehicles which serves the driver as a handle on the one hand and with which on the other hand at least three control functions can be triggered by one hand, a first control signal by turning a handle, a second Control signal can be generated by means of a rotary controller arranged on the handle and rotatable and thumb-actuated relative to it, and finally a third control signal by depressing the entire handle control device against a spring plate.
  • a major disadvantage of this facility is in that, by actuating the rotary control, a cam disc cooperating on the periphery with a plurality of microswitches is rotated and thus a stepless regulation is prevented and the use thereof is therefore limited to only contactive signal transmitters.
  • each of the microswitches has its own control circuit, this device requires an unacceptable expenditure on circuitry and control technology, which increases with the number of gradation steps. Apart from this, the holding function and the triggering of the third control signal are adversely affected by the arrangement of the handle control device on the resilient spring plate in a mutual manner. Due to the requirement for the rotary handle to be supported on both sides, certain structural conditions and an ergonomic arrangement on the control panel cannot always be taken into account.
  • the object of the invention is to create an operationally reliable and, in particular, ergonomic control element of high stability for industrial trucks, preferably for a forklift vehicle, with little effort in terms of resources and costs, which enables a simultaneous triggering of several vehicle functions with one hand, without the requirement to have to release the hand from the control element at any time and that should also serve as a handle for the driver while the industrial truck is moving.
  • the driving and lifting circuits are arranged opposite each other at both ends of the rotary handle and are equipped with stepless signal generating means, the actuating shafts of which are rotatably integrated independently of one another in the rotating handle, the actuating shaft of the driving circuit signal generating means with the rotary handle and the Actuating shaft of the lifting circuit signal generating means is spring-loaded to the signal transmitter, and the lifting circuit is fixedly connected to one end of the rotary handle.
  • the ergonomic integration of the actuator for the lift control directly into the control element for the drive control enables simultaneous one-hand operation of both and the resulting superimposed motion sequences of the hoist and industrial truck, without any interruption of the simultaneous steering process of the industrial truck with the other hand. Due to the opposite arrangement of travel and lift control at both ends of the twist grip and the integration of their control shafts in the twist grip, a particularly space-saving, compact design can be achieved, which requires a minimum of circuitry complexity and is characterized in particular by short travel ranges and stepless controllability.
  • the rotary handle on the industrial truck or parts thereof is mounted on one side so that an ergonomic arrangement - both in and transversely to the direction of travel - favors industrial trucks of various types, the rotary handle due to its stable design when starting or braking as well as when cornering
  • the industrial truck can also be used as a handle and driver support, without running the risk of impairing existing functional regulations or even unintentionally triggering new ones.
  • a preferred embodiment of the invention is characterized in that the signal transmitter is designed for ease of use as a slider adjustable on both sides in the circumferential direction, which not only facilitates stepless actuation of the lift switch, but also advantageously the use of signal generating means of contactless design, for example Hall Generators allowed.
  • the signal transmitter is arranged in the center of a circular segment-shaped recess in the rotary handle and is provided with a radial adjusting tongue which extends the potentiometer shaft centrally in the longitudinal axis of the rotary handle.
  • a twist grip 1 is equipped with a non-slip grip surface 2, which preferably extends over the entire circumference and the entire length of the twist grip 1.
  • the gripping surface 2 is provided with a rough or corrugated and possibly rubberized covering or instead with a knurled surface structure.
  • a shaft shoulder 3 into which an outer annular groove 4 is embedded. Centrally in the shaft paragraph 3 is as Square 5 formed blind hole introduced.
  • a bearing pot 8 is arranged on the shaft shoulder 3 by means of a ball bearing 7 and is designed as a flange 9 on its outer diameter for the purpose of attachment to the industrial truck.
  • Ball bearing 7 and bearing cup 8 are secured against axial displacement by means of two circlips 10 and 11, an outer circlip 10 being located in the outer annular groove 4 of the shaft shoulder 3, and an inner circlip 11 being embedded in an inner annular groove 13 of the bearing cup 8.
  • a drive circuit 18 is screwed onto the end of the bearing pot 8 by means of a bearing cover 14.
  • the driving circuit 18 includes u. a. a potentiometer 15 with a potentiometer shaft 16 and generates driving signals, such as "FORWARD”, “STOP” and “REVERSE", for controlling at least one driving motor in a known manner via pulse control.
  • the potentiometer shaft 16 is designed as a square. It extends through a bore 17 of the cover 14 and is guided in the inner square 5 of the shaft shoulder 3.
  • the rotary handle 1 extends into a bearing shell 19 with an inner recess 20.
  • a spring-loaded ball catch 41 is arranged in the wall of the bearing shell 19, the spring tension of which can be changed by means of an adjusting screw 42.
  • the recess 20 is followed by a bearing seat 21 which merges into a longer blind hole 6.
  • a bearing cap 22 which closes the same and has a central bore 23 is screwed onto the bearing shell 19.
  • a lifting circuit 24 is attached, which u. a. contains a potentiometer 25 with a potentiometer shaft 26 and generates stroke signals, such as "RAISE”, "STOP” and "LOWER", in a known manner for controlling at least one lifting motor.
  • Driving circuit 18, lifting circuit 24, potentiometers 15 and 25, pulse controls and the driving and lifting motor are known, commercially available components and therefore not, or only shown and described schematically.
  • the potentiometer shaft 26 extends through the bore 23 of the bearing cover 22 over the entire length of the blind bore 6 and is supported at the end in a bore 36 which is made centrally in the bottom of the blind bore 6.
  • the potentiometer shaft 26 is formed over the entire length of the blind bore 6 as a square shaft and the shaft end mounted in the bore 36 is concentric.
  • the potentiometer shaft 26 is guided in a bearing bush 27, which in turn is supported by means of a ball bearing 28 arranged on the bearing seat 21. In front of the bearing bush 27, the potentiometer shaft 26 is secured against axial displacement by a locking ring 29.
  • a return spring 30 Arranged in the recess 20 of the bearing shell 19 on the bearing bush 27 is a return spring 30 designed as an expansion spring, one end of which rests against a stop 31 fixed in the bearing shell 19 and the other end of which rests against a driver 32 fastened in the bearing bush 27 ( FIG. 1 ) .
  • the aforementioned potentiometer shaft 16 is spring-loaded.
  • the rotary handle 1 is preferably cast, for example in cast aluminum.
  • the rotary handle 1 can also be made as a turned part.
  • a circular segment-shaped recess 34 is embedded in the circumference of the rotary handle 1.
  • a signal transmitter 35 is preferably designed as a slider with a knurled surface and, according to FIG .
  • the signal generator 35 is provided with an adjusting tongue 38 which extends radially into the blind bore 6 of the rotary handle 1 and into which a bore in the form of an inner square 39 is embedded.
  • the square area of the potentiometer shaft 26 extends centrally in the longitudinal axis 40 of the rotary handle 1 through the inner square 39.
  • the adjusting tongue 38 of the signal transmitter 35 is secured on its underside with respect to the potentiometer shaft 26 in a known manner with a locking screw, not shown.
  • the signal transmitter 35 can be displaced continuously or finely graduated against the force of the return spring 30 on both sides in the circumferential direction by a certain angle (radian measure), as is indicated schematically by a dash-dot line in FIG. 2 .
  • control element The operation of the control element according to the invention is explained in more detail below.
  • the potentiometer shaft 16 of the travel switch 18 is rotated and thereby alternating voltage values are generated which, after their processing in the pulse control, are used to control the travel motor. Since the other, preferably left hand is used to steer the industrial truck, it was previously only possible to carry out a superimposed lifting mechanism movement while driving at the same time as the generation of the driving signals.
  • the spring-loaded ball detent 41 can be brought out of engagement with the detent recesses 43 by means of the set screw 42 or other mechanical means, which enables the signal transmitter 35 to be moved absolutely continuously. This can also be done in a simple manner in such a way that a rest position, not shown, is provided, into which the spring-loaded ball catch 41 can be lifted completely out of its catch position in order to relieve and release its catch ball.
  • the operator can, in an emergency, bring the initiated movement sequences to a standstill individually or together by simply releasing the rotary handle 1 and / or the signal generator 35.
  • the signal generator 35 is automatically returned to its zero position 37, since the force of the return spring 30 is far greater than that of the ball catch 41 and the latter thus cancels. In principle, this means that operating errors are completely ruled out and the operator can fully concentrate on the movement sequences of his vehicle that he has initiated, or the loading and unloading processes.
  • the rotary handle 1 can be used by the driver in a kind of additional function as a stabilizing handle or as a side support during driving movements - especially when accelerating and decelerating as well as when cornering.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Mechanical Control Devices (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Control Of Conveyors (AREA)
  • Handcart (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Claims (9)

  1. Elément de commande pour chariots de manutention, de préférence de véhicules gerbeurs, avec une poignée tournante (1) pour l'actionnement sans gradations d'une commande de marche (18) et avec une commande de levage (24), la poignée tournante (1) étant réalisée comme une poignée multifonction pour la commande simultanée, par une main, de toutes les fonctions indépendantes de la direction du chariot de manutention et étant pourvue, dans la zone de mouvement du pouce d'un opérateur, d'un transmetteur de signaux (35) déplaçable vers les deux côtés dans le sens de la périphérie de la poignée tournante (1) et servant à l'actionnement de la commande de levage (24),
    caractérisé en ce que les commandes de marche et de levage (18 et 24) sont disposées, l'une à l'opposé de l'autre, aux deux extrémités de la poignée tournante (1) et sont pourvues de moyens sans gradations (15 et 25) de production de signaux dont les axes de manoeuvre (16, 26) sont intégrés dans la poignée tournante (1) de façon à pouvoir être tournés indépendamment l'un de l'autre, l'axe de manoeuvre (16) du moyen de production de signaux (15) pour la commande de marche étant accouplé en rotation, sous la charge d'un ressort, à la poignée tournante (1), l'axe de manoeuvre (26) du moyen de production de signaux (25) pour la commande de levage étant accouplé en rotation, sous la charge d'un ressort, au transmetteur de signaux (35), et la commande de levage (24) étant reliée rigidement à une extrémité de la poignée tournante (1).
  2. Elément de commande selon la revendication 1, caractérisé en ce que la poignée tournante (1) est montée en porte à faux, par un côté, au chariot de manutention ou à des parties de celui-ci.
  3. Elément de commande selon la revendication 1 et/ou 2, caractérisé en ce que le transmetteur de signaux (35) est réalisé comme un régulateur à coulissement manoeuvrable sans gradations vers les deux côtés dans la direction périphérique.
  4. Elément de commande selon une ou plusieurs des revendications précédentes, caractérisé en ce que les moyens de production de signaux (15, 25) sont de type à contact, des potentiomètres par exemple.
  5. Elément de commande selon une ou plusieurs des revendications 1 - 4, caractérisé en ce que les moyens de production de signaux (15, 25) sont de type sans contact, des générateurs Hall par exemple.
  6. Elément de commande selon une ou plusieurs des revendications précédentes, caractérisé en ce que le transmetteur de signaux (35) est placé au milieu d'un évidement en forme de segment de cercle (34) de la poignée tournante (1) et est pourvu d'une languette radiale de manoeuvre (38) à travers de laquelle s'étend l'axe de manoeuvre (26), centré sur l'axe longitudinal (40) de la poignée tournante (1).
  7. Elément de commande selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'axe de manoeuvre (26) est guidé sur un roulement à billes dans un coussinet (27) de la poignée tournante (1), coussinet sur lequel est disposé un ressort de rappel (30) dont une extrémité est appliquée contre une butée (31) fixée sur la poignée tournante (1) et dont l'autre extrémité est appliquée contre un entraîneur (32) fixé dans le coussinet (27), de sorte que le transmetteur de signaux (35) est ramené automatiquement à sa position zéro (37) après avoir été libéré.
  8. Elément de commande selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'un déclic à bille (41), chargé par ressort et réglable, est disposé dans une coquille de palier (19) et est en liaison fonctionnelle avec des crans (43) du coussinet (27), le déclic à bille (41) pouvant être amené sélectivement d'une position d'encliquetage à une position de repos.
  9. Elément de commande selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'une coquille de palier (8) est montée sur billes à l'extrémité de la poignée tournante (1) située à l'opposé de la commande de levage (24), coquille qui est réalisée à son pourtour comme une bride (9) pour la fixation au chariot de manutention et sur laquelle sont fixés, au moyen d'un couvercle de palier (14), la commande de marche (18) avec le moyen de production de signaux (15) dont l'axe de manoeuvre (16) est monté dans un carré femelle (5) ménagé dans la poignée tournante (1).
EP90112662A 1989-08-04 1990-07-03 Elément de commande de véhicules de transport Expired - Lifetime EP0411335B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90112662T ATE102372T1 (de) 1989-08-04 1990-07-03 Bedienungselement fuer flurfoerderzeuge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3925872 1989-08-04
DE3925872A DE3925872A1 (de) 1989-08-04 1989-08-04 Bedienungselement fuer flurfoerderzeuge

Publications (3)

Publication Number Publication Date
EP0411335A2 EP0411335A2 (fr) 1991-02-06
EP0411335A3 EP0411335A3 (en) 1991-04-03
EP0411335B1 true EP0411335B1 (fr) 1994-03-02

Family

ID=6386541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112662A Expired - Lifetime EP0411335B1 (fr) 1989-08-04 1990-07-03 Elément de commande de véhicules de transport

Country Status (5)

Country Link
US (1) US5069082A (fr)
EP (1) EP0411335B1 (fr)
AT (1) ATE102372T1 (fr)
DE (2) DE3925872A1 (fr)
ES (1) ES2052108T3 (fr)

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DE4111675C2 (de) * 1991-04-10 1994-06-09 Wagner Foerdertechnik Kombidrehgriff zur Zweihandbedienung zwangsgeführter Flurförderzeuge
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US5664634A (en) * 1995-10-23 1997-09-09 Waxing Corporation Of America, Inc. Power tool
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DE19548950A1 (de) * 1995-12-28 1997-07-10 Jungheinrich Ag Deichselkopf für kraftgetriebene Deichselflurförderzeuge
DE19623792C2 (de) * 1996-06-14 2002-01-10 Still Wagner Gmbh & Co Kg Bedienelement für ein deichselgelenktes Flurförderzeug
MXPA00002131A (es) * 1997-09-08 2002-07-05 Crown Equip Corp Vehiculo para transporte de personal.
DE19848941C2 (de) * 1998-10-23 2002-05-02 Audi Ag Bedieneinrichtung für einen elektrischen Fensterheber eines Kraftfahrzeuges
DE102004005762A1 (de) * 2004-02-05 2005-09-01 Rema Lipprandt Gmbh & Co. Kg Deichselkopf für einen Flurförderer, Flurförderer sowie Verfahren zum Betrieb eines Flurförderers
DE102004042226A1 (de) * 2004-09-01 2006-03-02 Jungheinrich Ag Deichsel für einen Mitgeh- und Mitfahrstapler
CN114833849B (zh) * 2022-06-06 2024-01-16 深圳市尚为照明有限公司 一种防爆机器人

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Also Published As

Publication number Publication date
EP0411335A3 (en) 1991-04-03
DE3925872C2 (fr) 1992-03-26
ATE102372T1 (de) 1994-03-15
EP0411335A2 (fr) 1991-02-06
ES2052108T3 (es) 1994-07-01
DE59004743D1 (de) 1994-04-07
DE3925872A1 (de) 1991-02-07
US5069082A (en) 1991-12-03

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