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EP0214463B1 - Elektromotorisches Stellglied - Google Patents

Elektromotorisches Stellglied Download PDF

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Publication number
EP0214463B1
EP0214463B1 EP86110735A EP86110735A EP0214463B1 EP 0214463 B1 EP0214463 B1 EP 0214463B1 EP 86110735 A EP86110735 A EP 86110735A EP 86110735 A EP86110735 A EP 86110735A EP 0214463 B1 EP0214463 B1 EP 0214463B1
Authority
EP
European Patent Office
Prior art keywords
motor
sliding contacts
contact
section
worm wheel
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
EP86110735A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0214463A3 (en
EP0214463A2 (de
Inventor
Roland Sudler
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO 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 VDO AG filed Critical Mannesmann VDO AG
Publication of EP0214463A2 publication Critical patent/EP0214463A2/de
Publication of EP0214463A3 publication Critical patent/EP0214463A3/de
Application granted granted Critical
Publication of EP0214463B1 publication Critical patent/EP0214463B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to an electromotive actuator with limit switches and pushbuttons for the zero setting of a daily distance counter in a motor vehicle, consisting essentially of a housing and a motor mounted therein, which drives a worm wheel via a worm, which in turn has an eccentric and a tappet is in operative connection with the zero setting.
  • Such an actuator is known from DE-A-34 05 950. It performs all functions satisfactorily. In the limit switch provided there, however, it is considered disadvantageous that it takes up too much of the space available at the installation site, given its comparatively minor importance. In addition, it was structurally too complex for series production and also unacceptable in terms of price, because it was almost as expensive as the actuator motor.
  • the object of the invention is therefore to overcome the shortcomings of the known actuator, but in particular to show a possibility of realizing a much more cost-effective limit switch in the generic actuator.
  • a further development of the invention is that the sliding contacts are arranged on a sheet metal part designed as a leaf spring, which includes the flattened shaft of the wheel and rests on the wheel with surfaces lying between the sliding contacts.
  • This development represents a particularly simple form of sliding contacts, which in particular contributes to the inexpensive assembly of the actuator according to the invention.
  • the eccentric is designed like a crank.
  • a motor 1 drives a wheel, also not shown, via a gear, not shown, which is provided with a contact device 2.
  • the contact device 2 has two sliding contacts and connects an inner slip ring 3 with an outer slip ring 4 or 5. Details of the configuration of the contact device 2 are explained in connection with FIG. 2.
  • the outer slip ring is divided into a longer section 4 and a shorter section 5.
  • the slip rings are arranged as conductor tracks on an insulating plate. They can therefore be manufactured in an extremely inexpensive manner using known methods for producing printed circuits. They are preferably made of copper and are coated with a more noble metal to prevent oxidation.
  • the contact device 2 connects the inner slip ring 3 to the section 5 of the outer slip ring and thus short-circuits the motor 1 via the lines 6, 7 and 8 and the normally closed contact 9 of a pushbutton switch 10.
  • the longer section 4 of the outer slip ring is connected to the one pole 11 of a voltage source, not shown.
  • the motor is connected to the inner slip ring and to the other pole 12 of the voltage source.
  • the motor In the position of the contact device 2 shown, the motor is short-circuited, as already mentioned above, and is therefore at a standstill. By pressing the pushbutton switch 10, this short circuit is canceled by disconnecting the normally closed contact 9 and the pole 11 of the voltage source is connected to the motor via the normally open contact 13. The motor 1 thus starts up. After a short time, the contact arrangement 2 has reached a position in which it connects the inner slip ring and the longer section 4 of the outer slip ring to one another, so that the pushbutton switch 10 can be released and the motor runs until the position shown is reached again.
  • Fig. 2 shows a longitudinal section through a second embodiment in which the motor 1 and the other moving parts are mounted in a housing 15.
  • a worm 17, which engages in a worm wheel 18, is arranged on the motor shaft 16.
  • the plunger 21 is guided in the housing part 22 and is connected to the zeroing element of a daily distance counter. The latter is known per se and need not be explained in connection with the invention.
  • a connector plug 23 is provided for the electrical connections to the voltage source and to the pushbutton switch 10 (FIG. 1).
  • a contact spring 25 is plugged onto the flattened shaft 24 of the worm wheel 18, which is shown enlarged in FIG. 2a for the sake of clarity.
  • a cutout in the contact spring shaped in accordance with the cross section of the axis 24 secures the contact spring 25 against rotation relative to the worm wheel 18 and the eccentric 19. With the surfaces 26 and 27, the contact spring 25 rests on the surface of the eccentric 19.
  • the parts 28 and 29 of the contact spring 25 are bent away from the surface of the eccentric 19 and carry the sliding contacts 30 and 31, which are arranged at different distances from the axis according to the radii of the slip rings.
  • the sliding contacts 30 and 31 touch with appropriate pressure circular conductor tracks, which are not shown in FIG. 2 for the sake of clarity, but correspond to those shown in FIG. 1.
  • the third embodiment is shown in Fig. 3 as a cross section.
  • a motor 1 drives a worm wheel 18 via a worm 17.
  • the shaft 33 of the worm wheel 18 is formed on one side by appropriately enlarging the diameter and arrangement of a pin 34 as a crank.
  • Sliding contacts 35, 36 are arranged on a correspondingly designed contact spring 37 on the other side of the worm wheel 18.
  • both contacts are arranged on the same side of the shaft 33.
  • this is irrelevant to the function of the invention, since the inner slip ring comprises a full circle.
  • the position of the grinder 36 is therefore arbitrary.
  • the housing 38 also shows a housing 38 and a printed circuit board 14 which carries the conductor tracks 3 and 4 and 5, respectively.
  • the housing 38 comprises a run-up bead 39 which causes the worm wheel 18 to be guided in the axial direction.

Landscapes

  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
EP86110735A 1985-09-06 1986-08-04 Elektromotorisches Stellglied Expired - Lifetime EP0214463B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3531796 1985-09-06
DE19853531796 DE3531796A1 (de) 1985-09-06 1985-09-06 Elektromotorisches stellglied

Publications (3)

Publication Number Publication Date
EP0214463A2 EP0214463A2 (de) 1987-03-18
EP0214463A3 EP0214463A3 (en) 1989-11-15
EP0214463B1 true EP0214463B1 (de) 1991-07-24

Family

ID=6280250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110735A Expired - Lifetime EP0214463B1 (de) 1985-09-06 1986-08-04 Elektromotorisches Stellglied

Country Status (5)

Country Link
US (1) US4727263A (pt)
EP (1) EP0214463B1 (pt)
JP (2) JPS6261217A (pt)
BR (1) BR8604268A (pt)
DE (2) DE3531796A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879803A (en) * 1987-08-14 1989-11-14 Asmo Co., Ltd. Method for mounting a plurality of brushes
DE3844813C2 (de) * 1987-08-14 1993-03-11 Asmo Co Ltd Steuereinrichtung f}r ein Stellelement
US4940903A (en) * 1989-01-23 1990-07-10 Square D Company Motor controlled switch mechanism
JP4771420B2 (ja) 2006-01-12 2011-09-14 本田技研工業株式会社 サイドスタンドスイッチ
US8493061B2 (en) 2010-04-23 2013-07-23 Hamilton Sundstrand Corporation Cycle meter adjustment device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792460A (en) * 1954-03-31 1957-05-14 Perkins Machine Company Machine control devices
DE1076973B (de) * 1957-01-07 1960-03-03 Int Standard Electric Corp Abtaststeueranordnung fuer mechanische Zaehlwerke, insbesondere Umlaufzaehlwerke
US3253127A (en) * 1961-07-14 1966-05-24 Anthony P Morreale Digital readout and drive means therefor
US3177645A (en) * 1963-03-25 1965-04-13 Veeder Root Inc Counter reset mechanism
US3289131A (en) * 1964-11-12 1966-11-29 Patent Button Co Electromagnetic switch selector
JPS5113575B1 (pt) * 1971-04-20 1976-04-30
DE2831204C2 (de) * 1978-07-15 1980-05-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Miniatur-Stufenschalter
US4376895A (en) * 1979-10-24 1983-03-15 Meister Jack B Electromechanical switching device
FR2544912B1 (fr) * 1983-04-19 1986-08-14 Klaxon Sa Actionneur a moteur electrique
DE3405950A1 (de) * 1984-02-18 1985-08-22 Vdo Adolf Schindling Ag, 6000 Frankfurt Nullstellvorrichtung
US4507549A (en) * 1984-06-18 1985-03-26 Chrysler Corporation Odometer reset mechanism

Also Published As

Publication number Publication date
EP0214463A3 (en) 1989-11-15
BR8604268A (pt) 1987-05-05
DE3531796A1 (de) 1987-03-12
EP0214463A2 (de) 1987-03-18
DE3680422D1 (de) 1991-08-29
JPH0463519U (pt) 1992-05-29
JPS6261217A (ja) 1987-03-17
JPH0541471Y2 (pt) 1993-10-20
US4727263A (en) 1988-02-23

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