EP0184834A2 - Switching device - Google Patents

Switching device Download PDF

Info

Publication number
EP0184834A2
EP0184834A2 EP85115788A EP85115788A EP0184834A2 EP 0184834 A2 EP0184834 A2 EP 0184834A2 EP 85115788 A EP85115788 A EP 85115788A EP 85115788 A EP85115788 A EP 85115788A EP 0184834 A2 EP0184834 A2 EP 0184834A2
Authority
EP
European Patent Office
Prior art keywords
switching device
counter
drive shaft
electronic
pulse
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
EP85115788A
Other languages
German (de)
French (fr)
Other versions
EP0184834A3 (en
Inventor
Heinz Dr.-Ing. Hasselmann
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0184834A2 publication Critical patent/EP0184834A2/en
Publication of EP0184834A3 publication Critical patent/EP0184834A3/en
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • H01H19/18—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H19/183—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift adapted for operation by the simultaneous action of two cam plates, rotating at different speeds
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/108—Design features of general application for actuating the drive by electric or magnetic means by electronic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/02—Counters with additional facilities for performing an operation at a predetermined value of the count, e.g. arresting a machine

Definitions

  • the invention relates to a switching device for actuating switch contacts after a predetermined number of revolutions of a drive shaft, which engages via a gear with cam disks which actuate a switch contact with one another in a specific position.
  • Such a switching device is known from DE-PS 29 04 681 and switches off an engine after a certain number of revolutions and thus prevents an undesired collision of two parts moving relative to one another, e.g. hitting a load hook on a rope drum.
  • Machines must be serviced at certain intervals, which are determined by the professional association, the TÜV or similar institutions. These intervals are time-related and do not take into account the actual load, although this is the decisive factor for wear and tear and not time.
  • the object of the invention is therefore to design a switching device of the type mentioned in such a way that the maintenance of the machine connected to it is carried out as a function of the load that has actually taken place and therefore when a check is expedient because of the load that has taken place.
  • This object is achieved in that one of the shafts of the transmission is connected to a revolution counter.
  • the revolutions determined by the revolution counter give a reliable indication of the inspection due.
  • the counter can be designed so that it only records one working direction, e.g. in the case of a crane, only the lifting, while the lowering does not have to be recorded separately because of the necessarily the same path.
  • the drive shaft is provided with a pulse wheel, the teeth of which extend into the area of a pulse counter of the revolution counter, which preferably is an electronic counter arranged in a housing of the transmission, which is connected via a line to an evaluator to which a warning system in the form of a signal horn, a warning lamp or the like is assigned.
  • the electronic counter is preferably inserted into an opening in the housing of the transmission.
  • one of the camshafts of the switching device can be connected via a gear in the form of a traction sheave and driving member to a driving wheel of a counter, which is provided with a number plate.
  • a gear in the form of a traction sheave and driving member to a driving wheel of a counter, which is provided with a number plate.
  • the drive shaft 1 of the switching device is connected to the shaft 31 of a cable drum, not shown.
  • the drive shaft 1 drives the camshaft 3 at about 1/8 and the camshaft 4 at about 1/140 of their speed via a gearbox 2.
  • the camshaft 3 carries three cam disks 5 with wide switching cams 6, and the camshaft 4 carries cam disks 7 with narrow switching cams 8. Only if the switching cams 6 and 8 lying next to one another simultaneously lift the rocker arm 9 does a plunger 10 actuate contacts 11. The one-sided lifting of the rocker arm 9 in the position shown in FIG. 4 does not yet cause a switching operation.
  • the drive shaft 1 connected to the cable drum carries a pulse wheel 12 with thirty teeth 13, which are moved and scanned by a pulse generator 14 of an electronic counter 15. This passes the counted impulses via a line 28 to an electronic evaluator 29 which is provided with a warning system 30.
  • the electronic counter 15 is inserted into an opening 16 of the gear housing 22, to which a bearing plate 24 is fastened with screws 23.
  • the bearing plate 24 carries a rear bearing plate 25, in which the camshafts 3 and 4 are mounted, via two lateral supports 26.
  • the rapidly rotating camshaft 3 has a drive pulley 17 at the end opposite the transmission 2 for a drive member 18 in the form of a toothed belt which drives a drive wheel 19 of a counter. This is attached to the end shield 25 and has an easily readable number plate 21.
  • the adjusting screws 27 arranged around the camshafts 3 and 4 serve to adjust the cam disks 5 and 7 and thus to set the desired switching points.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Devices (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

The drive shaft (1) of the switching device is connected to the shaft (31) of a cable drum. The drive shaft (1) drives the camshaft (3) of the switching device at different speeds, via a transmission (2). The drive shaft (1), connected to the cable drum, carries a pulse wheel (12) with thirty teeth (13) which are moved through a pulse transmitter (14) of an electronic counter (15), and are thus sampled. The counter (15) passes the counted pulses via a line (28) to an electronic analyser (29) which is provided with an alarm system (30). The electronic counter (15) is inserted in an opening (16) in the transmission housing (22) to which a bearing plate (24) is attached with screws (23). Via two side supports (26), the bearing plate (24) carries a rear bearing bracket (25) in which the camshafts (3 and 4) are mounted. <IMAGE>

Description

Die Erfindung betrifft eine Schalteinrichtung zum Betätigen von Schaltkontakten nach einer vorbestimmten Anzahl von Umdrehungen einer Antriebswelle, die über ein Getriebe mit Nockenscheiben in Eingriff steht, die bei einer bestimmten Stellung zueinander einen Schaltkontakt betätigen.The invention relates to a switching device for actuating switch contacts after a predetermined number of revolutions of a drive shaft, which engages via a gear with cam disks which actuate a switch contact with one another in a specific position.

Eine derartige Schalteinrichtung ist durch die DE-PS 29 04 681 bekannt und bewirkt das Abschalten eines Motors nach einer bestimmten Anzahl von Umdrehungen und verhindert damit ein ungewolltes Zusammenstoßen zweier sich relativ zueinander bewegender Teile, z.B. das Anschlagen eines Lasthakens an eine Seiltrommel. Maschinen müssen in bestimmten Intervallen gewartet werden, die von der Berufsgenossenschaft, dem TÜV oder ähnlichen Institutionen bestimmt werden. Diese Intervalle sind zeitbezogen und berücksichtigen nicht die tatsächlich erfolgte Belastung, obgleich gerade diese für den Verschleiß und die Abnützung maßgebend ist und nicht die Zeit.Such a switching device is known from DE-PS 29 04 681 and switches off an engine after a certain number of revolutions and thus prevents an undesired collision of two parts moving relative to one another, e.g. hitting a load hook on a rope drum. Machines must be serviced at certain intervals, which are determined by the professional association, the TÜV or similar institutions. These intervals are time-related and do not take into account the actual load, although this is the decisive factor for wear and tear and not time.

Aufgabe der Erfindung ist es daher, eine Schalteinrichtung der genannten Art so zu gestalten, daß die Wartung der mit ihr verbundenen Maschine in Abhängigkeit von der tatsächlich erfolgten Belastung und somit dann erfolgt, wenn wegen der stattgefundenen Belastung eine Überprüfung zweckdienlich ist. Diese Aufgabe wird dadurch gelöst, daß eine der Wellen des Getriebes mit einem Umdrehungszählwerk verbunden ist. Die vom Umdrehungszählwerk festgestellten Umdrehungen geben einen sicheren Hinweis auf die fällige Inspektion. Das Zählwerk kann so gestaltet sein, daß es nur eine Arbeitsrichtung festhält z.B. bei einem Kran nur das Heben, während das Senken wegen des zwangsweise gleichen Weges nicht gesondert erfaßt werden muß.The object of the invention is therefore to design a switching device of the type mentioned in such a way that the maintenance of the machine connected to it is carried out as a function of the load that has actually taken place and therefore when a check is expedient because of the load that has taken place. This object is achieved in that one of the shafts of the transmission is connected to a revolution counter. The revolutions determined by the revolution counter give a reliable indication of the inspection due. The counter can be designed so that it only records one working direction, e.g. in the case of a crane, only the lifting, while the lowering does not have to be recorded separately because of the necessarily the same path.

In weiterer Ausgestaltung der Erfindung ist die Antriebswelle mit einem Impulsrad versehen, dessen Zähne in den Bereich eines Impulszählers des Umdrehungszählwerkes reichen, das vorzugsweise ein in einem Gehäuse des Getriebes angeordnetes Elektronik-Zählwerk ist, welches über eine Leitung mit einem Auswerter verbunden ist, dem eine Warnanlage in Form eines Signalhorns, einer Warnlampe oder dergleichen zugeordnet ist. Das Elektronik-Zählwerk ist vorzugsweise in eine Öffnung des Gehäuses des Getriebes eingesetzt.In a further embodiment of the invention, the drive shaft is provided with a pulse wheel, the teeth of which extend into the area of a pulse counter of the revolution counter, which preferably is an electronic counter arranged in a housing of the transmission, which is connected via a line to an evaluator to which a warning system in the form of a signal horn, a warning lamp or the like is assigned. The electronic counter is preferably inserted into an opening in the housing of the transmission.

Eine der Nockenwellen der Schalteinrichtung kann in anderer Ausgestaltung der Erfindung über ein Getriebe in Form einer Treibscheibe und Treibglied mit einem Treibrad eines Zählers verbunden sein, der mit einer Zifferntafel versehen ist. Jedes der genannten Umdrehungszählwerke erhöht den Nutzwert der Schalteinrichtung mit geringem Aufwand erheblich.In another embodiment of the invention, one of the camshafts of the switching device can be connected via a gear in the form of a traction sheave and driving member to a driving wheel of a counter, which is provided with a number plate. Each of the rotation counters mentioned significantly increases the utility of the switching device with little effort.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und im folgenden erläutert. Es zeigen:

  • Fig. 1 eine Seitenansicht der Schalteinrichtung, zum Teil im Schnitt,
  • Fig. 2 die Stirnansicht von Fig. 1,
  • Fig. 3 einen Längsschnitt durch die Schalteinrichtung nach Fig. 1, in der Draufsicht,
  • Fig. 4 den Schnitt IV-IV durch die Fig. 1.
An embodiment of the invention is shown in the drawing and explained below. Show it:
  • 1 is a side view of the switching device, partly in section,
  • 2 shows the end view of FIG. 1,
  • 3 shows a longitudinal section through the switching device according to FIG. 1, in plan view,
  • 4 shows the section IV-IV through FIG. 1.

Die Antriebswelle 1 der Schalteinrichtung ist mit der Welle 31 einer nicht gezeichneten Seiltrommel verbunden. Die Antriebswelle 1 treibt über ein Getriebe 2 die Nockenwelle 3 mit ca. 1/8 und die Nockenwelle 4 mit ca. 1/140 ihrer Drehzahl. Die Nockenwelle 3 trägt drei Nockenscheiben 5 mit breiten Schaltnocken 6, und die Nockenwelle 4 trägt Nockenscheiben 7 mit schmalen Schaltnocken 8. Nur wenn die nebeneinander liegenden Schaltnocken 6 und 8 gleichzeitig den Kipphebel 9 anheben, bewirkt ein Stößel 10 das Betätigen von Kontakten 11. Das einseitige Anheben des Kipphebels 9 in der gezeichneten Stellung nach Fig. 4 bewirkt noch keinen Schaltvorgang.The drive shaft 1 of the switching device is connected to the shaft 31 of a cable drum, not shown. The drive shaft 1 drives the camshaft 3 at about 1/8 and the camshaft 4 at about 1/140 of their speed via a gearbox 2. The camshaft 3 carries three cam disks 5 with wide switching cams 6, and the camshaft 4 carries cam disks 7 with narrow switching cams 8. Only if the switching cams 6 and 8 lying next to one another simultaneously lift the rocker arm 9 does a plunger 10 actuate contacts 11. The one-sided lifting of the rocker arm 9 in the position shown in FIG. 4 does not yet cause a switching operation.

Die mit der Seiltrommel verbundene Antriebswelle 1 trägt ein Impulsrad 12 mit dreißig Zähnen 13, die durch einen Impulsgeber 14 eines Elektronik-Zählwerkes 15 bewegt und dabei abgetastet werden. Dieses gibt die gezählten Impulse über eine Leitung 28 an einen elektronischen Auswerter 29 weiter, der mit einer Warnanlage 30 versehen ist. Das Elektronik-Zählwerk 15 ist in eine Öffnung 16 des Getriebe-Gehäuses 22 eingesetzt, an das eine Lagerschildplatte 24 mit Schrauben 23 befestigt ist. Die Lagerschildplatte 24 trägt über zwei seitliche Träger 26 ein hinteres Lagerschild 25, in dem die Nockenwellen 3 und 4 gelagert sind.The drive shaft 1 connected to the cable drum carries a pulse wheel 12 with thirty teeth 13, which are moved and scanned by a pulse generator 14 of an electronic counter 15. This passes the counted impulses via a line 28 to an electronic evaluator 29 which is provided with a warning system 30. The electronic counter 15 is inserted into an opening 16 of the gear housing 22, to which a bearing plate 24 is fastened with screws 23. The bearing plate 24 carries a rear bearing plate 25, in which the camshafts 3 and 4 are mounted, via two lateral supports 26.

Die sich schnell drehende Nockenwelle 3 hat an dem dem Getriebe 2 gegenüberliegenden Ende eine Treibscheibe 17 für ein Treibglied 18 in Form eines Zahnriemens, der ein Treibrad 19 eines Zählers treibt. Dieser ist am Lagerschild 25 befestigt und hat eine gut lesbare Zifferntafel 21. Die um die Nockenwellen 3 und 4 herum angeordneten Stellschrauben 27 dienen zum Verstellen der Nockenscheiben 5 und 7 und damit dem Einstellen der gewünschten Schaltpunkte.The rapidly rotating camshaft 3 has a drive pulley 17 at the end opposite the transmission 2 for a drive member 18 in the form of a toothed belt which drives a drive wheel 19 of a counter. This is attached to the end shield 25 and has an easily readable number plate 21. The adjusting screws 27 arranged around the camshafts 3 and 4 serve to adjust the cam disks 5 and 7 and thus to set the desired switching points.

BezeichnungslisteLabel list

  • 1 Antriebswelle1 drive shaft
  • 2 Getriebe2 gears
  • 3 Nockenwelle, schnell3 camshaft, fast
  • 4 Nockenwelle, langsam4 camshaft, slow
  • 5 Nockenscheibe5 cam disc
  • 6 Schaltnocken6 switch cams
  • 7 Nockenscheibe7 cam disc
  • 8 Schaltnocken8 switching cams
  • 9 Kipphebel9 rocker arms
  • 10 Stößel10 pestles
  • 11 Kontakte11 contacts
  • 12 Impulsrad12 impulse wheel
  • 13 Zahn13 tooth
  • 14 Impulsgeber14 pulse generator
  • 15 Elektronik-Zählwerk15 electronics counter
  • 16 Öffnung16 opening
  • 17 Treibscheibe17 traction sheave
  • 18 Treibglied18 drive link
  • 19 Treibrad19 driving wheel
  • 20 Zähler20 counters
  • 21 Zifferntafel21 number plate
  • 22 Gehäuse22 housing
  • 23 Schraube23 screw
  • 24 Lagerschildplatte24 end shield plate
  • 25 Lagerschild25 end shield
  • 26 Träger26 carriers
  • 27 Stellschrauben27 set screws
  • 28 Leitung28 line
  • 29 Auswerter29 evaluators
  • 30 Warnanlage30 warning system

Claims (6)

1. Schalteinrichtung zum Betätigen von Schaltkontakten nach einer vorbestimmten Anzahl von Umdrehungen einer Antriebswelle, die über ein Getriebe mit Nockenscheiben in Eingriff steht, die bei einer bestimmten Stellung einen Schaltkontakt betätigen, dadurch gekennzeichnet, daß eine der Wellen (1, 3, 4) mit einem Umdrehungszählwerk (14, 20) verbunden ist.1. Switching device for actuating switch contacts after a predetermined number of revolutions of a drive shaft, which engages via a gear with cam disks that actuate a switch contact in a certain position, characterized in that one of the shafts (1, 3, 4) with a revolution counter (14, 20) is connected. 2. Schalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebswelle (1) mit einem Impulsrad (12) versehen ist, dessen Zähne (13) in den Bereich eines Impulszählers (14) des Umdrehungszählwerkes reichen.2. Switching device according to claim 1, characterized in that the drive shaft (1) is provided with a pulse wheel (12), the teeth (13) of which extend into the area of a pulse counter (14) of the revolution counter. 3. Schalteinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Umdrehungszählwerk eine'in einem Gehäuse (22) des Getriebes (2) angeordnetes Elektronik-Zählwerk (15) ist, das über eine Leitung (28) mit einem Auswerter (29) verbunden ist.3. Switching device according to claim 2, characterized in that the revolution counter is a 'in a housing (22) of the transmission (2) arranged electronic counter (15) which is connected via a line (28) to an evaluator (29) . 4. Schalteinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß dem Auswerter (29) eine Warnanlage (30) zugeordnet ist.4. Switching device according to claim 3, characterized in that the evaluator (29) is assigned a warning system (30). 5. Schalteinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Elektronik-Zählwerk (15) in eine Öffnung (16) des Gehäuses (22) eingesetzt ist.5. Switching device according to claim 3, characterized in that the electronic counter (15) in an opening (16) of the housing (22) is inserted. 6. Schalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine der Nockenwellen (3, 4) über eine Treibscheibe (17) und ein Treibglied (18) mit einem Treibrad (19) eines mit einer Zifferntafel (21) versehenen Zählers (20) verbunden ist.6. Switching device according to claim 1, characterized in that one of the camshafts (3, 4) via a traction sheave (17) and a drive member (18) with a drive wheel (19) of a with a number plate (21) provided counter (20) is.
EP85115788A 1984-12-14 1985-12-11 Switching device Ceased EP0184834A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843445675 DE3445675A1 (en) 1984-12-14 1984-12-14 SWITCHING DEVICE
DE3445675 1984-12-14

Publications (2)

Publication Number Publication Date
EP0184834A2 true EP0184834A2 (en) 1986-06-18
EP0184834A3 EP0184834A3 (en) 1987-12-02

Family

ID=6252807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115788A Ceased EP0184834A3 (en) 1984-12-14 1985-12-11 Switching device

Country Status (2)

Country Link
EP (1) EP0184834A3 (en)
DE (1) DE3445675A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010047305A1 (en) * 2010-10-01 2012-04-05 Ika-Werke Gmbh & Co. Kg Mixing, stirring or dispersing method and apparatus therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE568590C (en) * 1933-02-02 Walter Schulz Trip control device to automatically indicate when parts of a vehicle need to be oiled
DE2904681B2 (en) * 1979-02-08 1981-01-22 Mannesmann Demag Ag, 4100 Duisburg Switching device for actuating switching contacts
US4361312A (en) * 1979-02-07 1982-11-30 Columbus Mckinnon Corporation Precise load positioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114689C2 (en) * 1981-04-10 1985-08-01 Bayerische Motoren Werke AG, 8000 München Service interval display device for prime movers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE568590C (en) * 1933-02-02 Walter Schulz Trip control device to automatically indicate when parts of a vehicle need to be oiled
US4361312A (en) * 1979-02-07 1982-11-30 Columbus Mckinnon Corporation Precise load positioner
DE2904681B2 (en) * 1979-02-08 1981-01-22 Mannesmann Demag Ag, 4100 Duisburg Switching device for actuating switching contacts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010047305A1 (en) * 2010-10-01 2012-04-05 Ika-Werke Gmbh & Co. Kg Mixing, stirring or dispersing method and apparatus therefor

Also Published As

Publication number Publication date
EP0184834A3 (en) 1987-12-02
DE3445675A1 (en) 1986-06-19

Similar Documents

Publication Publication Date Title
DE3137201A1 (en) Labelling machine with a turntable
DE10152906A1 (en) Drive for locking elements
EP0184834A2 (en) Switching device
EP0063702A1 (en) Driving means for a rotating platform of an industrial robot
DE3304853C2 (en) Forage harvester
DE2932295C2 (en)
DE2348899A1 (en) Pressure controlled brush for car wash - has two coaxial sections joined by torsion coupling and driven by single drive shaft
DE3634796C1 (en) Arrangement for automatic, timely positioning of a chart
DE2919369A1 (en) FLAT-KNITTING MACHINE WITH PULSER FOR ELECTRONIC CONTROL
EP0957566A2 (en) Asynchronous motor with controllable speed and direction of rotation for drive units, in particular for hoisting units or running gears
DE3132320A1 (en) DEVICE FOR AUTOMATIC LIFT CHANGE OF A CRANKSHAFT
DE2705529C3 (en) Monitoring and control device in a high-speed stranding machine with a brake
EP0858380B1 (en) System for limiting rotation angles
DE1410153C3 (en) Program switching mechanism for automatic washing machines or the like
DE384244C (en) Drive device for circular knitting machines
DE572418C (en) Drive device for star wheels on bottle handling machines
DE685076C (en) Car spinner with a device for changing the machine from right-hand to left-hand drive spindles (and vice versa)
DE2161677A1 (en) DRIVE FOR LOAD SWITCH
DE456781C (en) Drive device for motor vehicles and a working machine arranged on the vehicle
DE872795C (en) Drive for swivel bridge
DE353185C (en) Combing machine
DE2410626A1 (en) Multiple chain drive breakage monitoring mechanism - has rotary body with peripheral metal masses running past indicator
DE184287C (en)
DE486822C (en) Electric winding device for clocks
DE656337C (en) Shifting device on machine tools, especially for the boom of radial drilling machines

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19880422

17Q First examination report despatched

Effective date: 19900824

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19920717

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HASSELMANN, HEINZ, DR.-ING.