DE2509188A1 - Electro servo operated driving mirror - has plastic, axially slotted drive nut as torque limited drive - Google Patents

Electro servo operated driving mirror - has plastic, axially slotted drive nut as torque limited drive

Info

Publication number
DE2509188A1
DE2509188A1 DE19752509188 DE2509188A DE2509188A1 DE 2509188 A1 DE2509188 A1 DE 2509188A1 DE 19752509188 DE19752509188 DE 19752509188 DE 2509188 A DE2509188 A DE 2509188A DE 2509188 A1 DE2509188 A1 DE 2509188A1
Authority
DE
Germany
Prior art keywords
nut
mirror
drive
thread
plastic
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.)
Pending
Application number
DE19752509188
Other languages
German (de)
Inventor
Walter Sebald
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.)
Gebr Maerklin und Cie GmbH
Original Assignee
Gebr Maerklin und Cie GmbH
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 Gebr Maerklin und Cie GmbH filed Critical Gebr Maerklin und Cie GmbH
Priority to DE19752509188 priority Critical patent/DE2509188A1/en
Publication of DE2509188A1 publication Critical patent/DE2509188A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02Rear-view mirror arrangements
    • B60R1/06Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B60R1/07Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
    • B60R1/072Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for adjusting the mirror relative to its housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

The external driving mirror is set at the selected angles by a servo driven shaft (2) from an electric motor. The shaft is coupled to the mirror by a special threaded nut (4). The nut is moulded from a thermoplastic and has axial slots (6) extending from either end. This provides a weakened structure so that when the torque on the drive shaft exceeds a set value the nut is splayed out to disengage the threads, and allow the drive to slip. Alternatively, only the top and bottom edges of the nut are threaded leaving the middle section clear of the thread.

Description

Vorrichtung zum BetätiÓen eines Autospiegels oder dergleichen Die Erfindung betrifft eine Vorrichtung zum Anlenken eines Autospiegels an die elektromotorisch angetriebene, dem Verschwenken des Trägers der Spiegelsscheibe dienenen Gewindespirldel, vorzugsweise in der Art, dass die-Spiegelscheibe mittels zweier Vorrichtungen um ein Kugel- oder Kreuzhautpgelenk klapp- und quer zur Klappachse verschwenkbar ist, wobei die Gewindespindel die Mutter zum Verstellen des Trägers trägt. Device for actuating a car mirror or the like The invention relates to a device for articulating a car mirror to the electric motor driven, the pivoting of the support of the mirror disc serving screw, preferably in such a way that the mirror pane by means of two devices around a ball or cruciform skin joint can be folded and pivoted transversely to the folding axis, wherein the threaded spindle carries the nut for adjusting the carrier.

Schweirig ist es bei allen solchen Apparaten, den Blektromotorl im bestmöglichen Liass gegen Ueberlasten zu richten. Dies bezogen auf die Beanspruchungen, auf die verlangte Dauerbelastungsfähigkeit und auf die vorgegebenen Höchstpreise. Diese Aufgabe löst das Beanspruchte bestmöglich, das dadurch gekennzeichnet -ist, dass die Mutter radialelastisch wirkt, in der Art, dass ihr Durchmesser zwecks Auskuppelns aus dem Gewinde der Gewindespindel beim Ansteigen der Stellkraft auf eine bestimmte den ordnungsgemässen Betrieb der Vorrichtung gefährdenke Grösse variabel gestaltet isto Beispielsweise kann die Mutter aus einem Thermoplast gefertigt und axparallel eingeschlitzt sein, so dass das Spreizen und auch wieder das Zurückfedern der Mutter exakt beherrchbar und vorherberechenbar ist0 Eine erfindungswesentliche Ausgestaltung sieht vor, dass das Gewinde der Mutter durch ein gewindeloses Mittelstück unterbrochen ist, in das die Schlitze zwecks Bilden von Gewindeteile tragende Zangen hineintauchenO Zeichnerisch sind Ausführungsbeispiele erläutert mit der Fig 1, die einen Autorückblickspiegel im Längsschnitt wiedergibt Die Fig. 2 und 3 stellen eine Variante im Querschnitten einander gegenäber (Mittelstellung und eine der beiden Endstellungen), während die Fig 4 und 5 eine Mutter im Axialschnitt (teils im Aufriss) und im Grundriss zeigt.It is treacherous with all such devices, the Blektromotorl im as best possible to direct against overloads. This related to the stresses on the required long-term load capacity and on the specified maximum prices. This task solves what is claimed in the best possible way, which is characterized by that the nut acts radially elastic, in such a way that its diameter for the purpose of uncoupling from the thread of the threaded spindle when the actuating force increases to a certain level The correct operation of the device jeopardizing size is made variable isto For example, the nut can be made from a thermoplastic and be slotted axparallel, so that the spreading and also the springing back again the mother is precisely controllable and predictable in advance0 An essential element of the invention Design provides that the thread of the nut through a threadless center piece is interrupted, in which the slots for the purpose of forming threaded parts carrying pliers In the drawing, exemplary embodiments are explained with FIG. 1, which shows a car rearview mirror in longitudinal section. Figs. 2 and 3 represent a Variant in cross-section facing each other (middle position and one of the two End positions), while Figs. 4 and 5 show a nut in axial section (partly in elevation) and shows in plan.

Das Gewinde 3 der Gewindespindel 2, 3 trägt die Mutter 4 zum Verstellen des Trägers i Die Mutter 4 in der Art radialelastisch, dass ihr Durchmesser zwecks Auskuppelns aus dem Gewinde 3 der Gewindespindel 2 (vgl. Endstellung bzwO Freilaufstellung in Pig 3) beim Ansteigen der Stellkraft auf eine bestimmte Grösse variabel ist0 Das Gewinde 3 der Mutter 4 ist durch ein gewindelostes Mittelstück 5 unterbrochen mithin zweigeteilt, so dass nach 2?ig 4 die Schlitze 6 zwecks Bildens von Gewindeteile traenden Zangen hineintauchen. Der Träger 1 wird mittels der Kugel 7 auf der Konsole 8 gelagert Die Teile 9, 10, sind Glieder eines Kreuzgelenkes den der Träger 1 -des Spiegels ist zweidimensional kipp- bzw. verstellbar0 Die zweite Gewindespindel istnicht veranschaulicht0 Beim Ausführungsbeispiel der Fig. 2 und 3 sind die Federdrahtschenkel 11 Mittel zum Belasten bzwO Zuruckstellen der Mutter 4 in die Transportstellung (Fig 2)o Die federartig ausgestaltete Gelenkmutter 4 öffnet und schliesst sichmithin im Betrieb im Wechsel fortwährend, solange die Gewinde spindel sich draht und die Gelenkplatte mit den an ihr angebrachten Begrensungen am Deckel aufläuft. Wird durch Fremdeinwirkung auf die Gelenkplatte (Träger 1) (oder Spiegel) ein Druck P ausgeübt, kann dieselbe nach oben oder unten gedrpckt werden , denn die Gelenkmutter überrastet dabei eine Anzahl von Gewindegängen der Gewinde spindel (ev. bis an die Begrenzung einer ddr Scheiben 12, 13) hin.The thread 3 of the threaded spindle 2, 3 carries the nut 4 for adjustment of the support i The nut 4 is radially elastic in such a way that its diameter in order to Decoupling from the thread 3 of the threaded spindle 2 (see end position or free-running position in Pig 3) is variable when the actuating force increases to a certain value0 The thread 3 of the nut 4 is through an unthreaded middle piece 5 interrupted and therefore divided into two, so that after 2? ig 4 the slots 6 for the purpose of forming Immerse in pliers that are touching threaded parts. The carrier 1 is by means of the ball 7 mounted on the console 8 The parts 9, 10 are members of a universal joint The support 1 of the mirror can be tilted or adjusted in two dimensions0 The second Screw spindle is not illustrated0 In the embodiment of Figs 3, the spring wire legs 11 are means for loading or resetting the nut 4 in the transport position (Fig. 2) o The spring-like hinged nut 4 opens and closes continuously during operation as long as the thread The wire and the joint plate with the boundaries attached to it screw themselves runs up on the lid. If the joint plate (carrier 1) (or Mirror) exerted a pressure P, the same can be pressed up or down , because the joint nut engages a number of threads of the thread spindle (possibly up to the limit of a gdr disk 12, 13).

Claims (1)

Ansprüche: Expectations: 9 Vorrichtung zum Anlenken eines Autospiegels an die elektromotorisch angetriebene, dem Verschwenken des Trägers der Spiegelscheibe dienenden Gewindespindel, vorzugsweise in der Art, daß die Spiegelscheibe mittels zweier Vorrichtungen um ein Eugel- oder Kreuzhauptgelenk klapp- und quer zur Klappachse verschwenkbar ist, wobei die Gewindespindel die Mutter zum Verstellen des Trägers trägt, dadurch gekennzeichnet, daß die Mutter (4) radialelastisch ist, in der Art, daß ihr Durchmesser zwecks Auskuppelns aus dem Gewinde (3) der Gewindespindel (2) beim Ansteigen der Stellkraft auf eine bestimmte Größe variabel gestaltet ist0 2o) Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Mutter (4) axparallel eingeschlitzt isto 3o) Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gewinde (3) der Mutter (4) durch ein gewindeloses Mittelstück (5) unterbrochen ist, in das die Schlitze (6) zwecks Bildens von Gewindeteile tragenden Zangen hineintauchenO L e e r s e i t e9 device for articulating a car mirror to the electric motor driven, the pivoting of the support of the mirror disk serving threaded spindle, preferably in such a way that the mirror pane by means of two devices around a ball joint or universal joint can be folded and pivoted transversely to the folding axis, wherein the threaded spindle carries the nut for adjusting the carrier, characterized in that, that the nut (4) is radially elastic, in such a way that its diameter for the purpose of uncoupling from the thread (3) of the threaded spindle (2) when the actuating force increases to one certain size is designed variable is0 2o) device according to claim 1 thereby characterized in that the nut (4) is slotted axparallelo 3o) device according to claim 1 or 2, characterized in that the thread (3) of the nut (4) is interrupted by a threadless middle piece (5) into which the slots (6) Dip in to form pliers carrying threaded parts L. e e r e i t e
DE19752509188 1975-03-03 1975-03-03 Electro servo operated driving mirror - has plastic, axially slotted drive nut as torque limited drive Pending DE2509188A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752509188 DE2509188A1 (en) 1975-03-03 1975-03-03 Electro servo operated driving mirror - has plastic, axially slotted drive nut as torque limited drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752509188 DE2509188A1 (en) 1975-03-03 1975-03-03 Electro servo operated driving mirror - has plastic, axially slotted drive nut as torque limited drive

Publications (1)

Publication Number Publication Date
DE2509188A1 true DE2509188A1 (en) 1976-09-09

Family

ID=5940333

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752509188 Pending DE2509188A1 (en) 1975-03-03 1975-03-03 Electro servo operated driving mirror - has plastic, axially slotted drive nut as torque limited drive

Country Status (1)

Country Link
DE (1) DE2509188A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526737A1 (en) * 1982-05-13 1983-11-18 Manzoni Stephane TORQUE LIMITING DEVICE FOR MECHANISM FOR CONTROLLING A RETROVISOR MIRROR
US4474428A (en) * 1980-11-19 1984-10-02 Efrudec Gmbh Rear view mirror adjustable by electric motor
FR2545768A2 (en) * 1982-05-13 1984-11-16 Manzoni Stephane Torque limiting device for a mechanism for controlling a rear view mirror
USRE33583E (en) * 1982-05-03 1991-05-07 Societe Manzoni Bouchot Mechanism with torque-limiting device for controlling a rearview mirror

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474428A (en) * 1980-11-19 1984-10-02 Efrudec Gmbh Rear view mirror adjustable by electric motor
USRE33583E (en) * 1982-05-03 1991-05-07 Societe Manzoni Bouchot Mechanism with torque-limiting device for controlling a rearview mirror
FR2526737A1 (en) * 1982-05-13 1983-11-18 Manzoni Stephane TORQUE LIMITING DEVICE FOR MECHANISM FOR CONTROLLING A RETROVISOR MIRROR
EP0094856A1 (en) * 1982-05-13 1983-11-23 Stéphane Manzoni Torque limiter for a rear view mirror
FR2545768A2 (en) * 1982-05-13 1984-11-16 Manzoni Stephane Torque limiting device for a mechanism for controlling a rear view mirror
US5007725A (en) * 1982-05-13 1991-04-16 Societe Manzoni Bouchot Mechanism with torque-limiting device for controlling a rearview mirror

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