DE2831572C3

DE2831572C3 - The exterior mirror can be adjusted from inside the vehicle

Info

Publication number: DE2831572C3
Application number: DE19782831572
Authority: DE
Inventors: Juergen 6273 Waldems Reinhardt
Original assignee: Thermoplast & Apparatebau 6270 Idstein De GmbH
Current assignee: Thermoplast & Apparatebau 6270 Idstein De GmbH
Priority date: 1978-07-18
Filing date: 1978-07-18
Publication date: 1982-01-14
Also published as: DE2831572A1; DE2831572B2

Description

Anhand der nun folgenden Beschreibung eines in der Zeichnung dargestellten Ausführungsbeispiels der Erfindung wird diese näher erläutert, dabei zeigtOn the basis of the following description of an exemplary embodiment of the invention shown in the drawing this is explained in more detail, it shows

F i g. 1 einen Horizontalschnitt durch den Sockel eines erfindungsgemäßen Rückblickspiegels, wobei von den Getriebeelementen nur der Mitnehmer geschnitten ist,F i g. 1 shows a horizontal section through the base of a rearview mirror according to the invention, from only the driver is cut from the gear elements,

F i g. 2 einen Schnitt nach der Linie H-II in F i g. 1,F i g. 2 shows a section along the line H-II in FIG. 1,

Fig.3 einen Schnitt nach der Linie IH-III in F^;g. 1 und ίο3 shows a section along the line IH-III in F ^; G. 1 and ίο

F i g. 4 eine Ansicht in Richtung des Pfeils X in F i g. 3 in größerem Maßstab.F i g. 4 is a view in the direction of arrow X in FIG. 3 on a larger scale.

In den F i g. 1 und 3 ist das Spiegelgehäuse 10 mit der Spiegelscheibe 12 lediglich schematisch und in mehreren unterschiedlichen Stellungen angedeutet. Das Spiegelgehäuse 10 ist fest mit einer Gewindekalotte 14 verbunden, in welche ein Gewindestück 16 eingesetzt ist, so daß die Gewindekalotte 14 und das Gewindestück 16 als Bestandteil des Spiegelgehäuse., betrachtet werden können.In the F i g. 1 and 3, the mirror housing 10 with the mirror pane 12 is only schematically and in several ways different positions indicated. The mirror housing 10 is fixed with a threaded dome 14 connected, in which a threaded piece 16 is inserted, so that the threaded dome 14 and the threaded piece 16 as part of the mirror housing., Can be viewed.

In Richtung der für das Verschwenken des Spiegelgehäuses 10 im Falle eines Anpralls vorgesehenen Schwenkachse 18 erstreckt sich im Gewindestück 16 eine Gewindebohrung 20. Die im wesentlichen rotationssymmetrisch zu dieser Schwenkachse ausgebildete Gewindekalotte 14 besitzt einen zylindrischen Hohlraum 22, der sich in Richtung auf einen Befestigungssokkel 24 öffnet. Gegenüber der Gewindekalotte 14 drehbar ist im Hohlraum 22 ein hohlzylindrischer Schaft 26 eines Zwischenstückes 28 angeordnet, wobei, wie aus F i g. 4 ersichtlich ist, die Stirnseite 30 der Gewindekalotte eine Einkerbung 32 in Achsrichtung aufweist, in welche ein entsprechender Vorsprung 34 an einem Kragen 36 des Zwischenstückes 28 eingreift. Der Kragen 36 liegt mit einer an seiner Unterseite J5 ausgebildeten Kugelfläche 38 an einer komplementären Kugelfläche 40 an der Außenseite des Befestigungssokkels 24 an, wobei das Drehzentrum 42 für die Bewegung des Spiegelgehäuses 10 längs dieser Kugelflächen 38 und 40 im Inneren des gehäuseartigen Befestigungssokkels 24 liegt, der aus einem Fuß 24a und einem Deckel 246 besteht, die durch nicht gezeigte Schrauben miteinander verbindbar sind.In the direction provided for pivoting the mirror housing 10 in the event of an impact The pivot axis 18 has a threaded hole 20 extending in the threaded piece 16, which is essentially rotationally symmetrical Threaded dome 14 designed for this pivot axis has a cylindrical cavity 22, which opens in the direction of a fastening base 24. Opposite the threaded dome 14 rotatably a hollow cylindrical shaft 26 of an intermediate piece 28 is arranged in the cavity 22, wherein, as from F i g. 4 it can be seen that the end face 30 of the threaded dome has a notch 32 in the axial direction, in FIG which a corresponding projection 34 engages on a collar 36 of the intermediate piece 28. Of the Collar 36 rests on a complementary one with a spherical surface 38 formed on its underside J5 Spherical surface 40 on the outside of the fastening base 24, the center of rotation 42 for the movement of the mirror housing 10 along these spherical surfaces 38 and 40 in the interior of the housing-like fastening base 24 lies, which consists of a foot 24a and a cover 246, which is secured by screws, not shown are connectable to each other.

Durch eine kreisförmige Ausnehmung 44 im Deckel 24b wird eine durch das Drehzentrum 42 verlaufende, im -f¹» wesentlichen vertikale Achse 46 festgelegt, um welche — wie noch erläutert wird — das Spiegelgehäuse 10 eine Schwenkbewegung ausführen kann. An dieser Schwenkbewegung nimmt ein Lagerbock 48 teil, der mit einem hohlzylindrischen Ansatz 50 in die Ausnehmung 44 eingreift. Auf diesem Lagerbock 48 ist um eine zur erwähnten vertikalen Achse 46 rechtwinklig verlaufende, also horizontale Achse 52, welche ebenfalls durch das Drehzentrum 42 verläuft, verschwenLbar ein Gelenkstück 54 gelagert, welches mit einem Achsstummel 56 aus einer öffnung 58 des Fußes 24a in Richtung auf das Spiegelgehäuse 10 hervorragt. Auf diesem Achsstummel 56 ist das Zwischenstück 28 angeordnet.By a circular recess 44 in the cover 24b has a line passing through the center of rotation 42, in ¹ -f "substantially vertical axis 46 is determined by which - the mirror housing 10 can execute a pivoting movement - as will be explained. A bearing block 48 which engages in the recess 44 with a hollow cylindrical extension 50 takes part in this pivoting movement. On this bearing block 48, a joint piece 54 is mounted pivotably about a vertical axis 46 running at right angles to the mentioned vertical axis 46, i.e. horizontal axis 52, which also runs through the center of rotation 42 Mirror housing 10 protrudes. The intermediate piece 28 is arranged on this stub axle 56.

Das Gelenkstück 54 wird koaxial zum Achsstummel 56 von einer Bohrung 60 durchzogen, die etwa im bo Bereich des Achsstummels 56 eine Durchgangsbohrung 62 für eine Stellschraube 64 bildet, während sich in einem vom Spiegelgehäuse 10 abgewandten, im Durchmesser unter Bildung einer Schulter 66 erweiterten Abschnitt 69 eine die Stellschraube 64 umgebende Druckfeder 68 befindet, die zwischen dem Kopf 70 der Stellschraube 64 und der Schulter 66 eingespannt ist. Die Stellschraube 64 steht mit der Gewindebohrung 20 des Gewindestückes 16 in Eingriff. Durch Verstellung der Stellschraube 64 kann somit die Kraft eingestellt werden, mit welcher die Gewindekalotte in aixaler Richtung gegen das Zwischenstück 28 gezogen wird und damit das Drehmoment, welches erforderlich ist, um die Rastverbindung zwischen der Gewindekalotte 14 und dem Zwischenstück 28 zu lösen, durch welche die Betriebsstellung des Spiegelgehäuses festgelegt wird.The joint piece 54 is traversed coaxially to the stub axle 56 by a bore 60 which is approximately in the bo Area of the stub axle 56 forms a through hole 62 for an adjusting screw 64, while in one facing away from the mirror housing 10, enlarged in diameter to form a shoulder 66 Section 69 is a compression spring 68 surrounding the adjusting screw 64, which is between the head 70 of the Adjusting screw 64 and shoulder 66 is clamped. The adjusting screw 64 is with the threaded hole 20 of the Threaded piece 16 in engagement. The force can thus be adjusted by adjusting the adjusting screw 64 with which the threaded dome is drawn in aixaler direction against the intermediate piece 28 and so that the torque which is required to the locking connection between the threaded dome 14 and to solve the intermediate piece 28, through which the operating position of the mirror housing is determined.

Der Kopf 70 der Stellschraube 64 ist durch die Ausnehmung 44 und eine Durchbrechung 72 des Lagerbocks 48 zugänglich. Die Ausnehmung 44 kann durch eine Kappe 74 verschlossen werden.The head 70 of the adjusting screw 64 is through the recess 44 and an opening 72 of the Bearing block 48 accessible. The recess 44 can be closed by a cap 74.

Parallel zur horizontalen Achse 52, nachfolgend auch erste Achse genannt, ist im Lagerbock 48 eine Antriebswelle 76 gelagert, die eine Stirnverzahnung 78 aufweist, die in eine Stirnverzahnung 80 am Gelenkstück 54 eingreift, so daß sich bei einer Drehung der Antriebswelle 76 das Gelenkstück 54 und damit auch das Spiegelgehäuse 10 gegensinnig um die erste Achse 52 drehen und damit eine Kippbewegung ausführen wird.Parallel to the horizontal axis 52, hereinafter also referred to as the first axis, a drive shaft 76 is mounted in the bearing block 48, which has a spur toothing 78 which engages in a spur toothing 80 on the joint piece 54, so that when the drive shaft 76 rotates, the joint piece 54 and so that the mirror housing 10 will also rotate in opposite directions about the first axis 52 and thus perform a tilting movement.

An ihrem aus dem Lagerbock 48 ragenden Ende ist die Antriebswelle 76 mit einem eine kugelige Außenfläche aufweisenden Abschnitt 82 versehen, der mit einem radial vorspringenden Mitnehmerzahn 84 versehen ist. Der Abschnitt 82 wird von einer zylindrischen Hülse 100 umschlossen, die an ihrer Innenfläche mit einer achsparallelen Nut 102 versehen ist, in welche der Mitnehmerzahn 84 eingreift. An ihrer Außenfläche ist die Hülse 100 mit einer Verzahnung 104 versehen, die mit an einem zylindrischen Endabschnitt 86 einer Stellwelle 88 ausgebildeten Zähnen 90 einer Stirnverzahnung in Eingriff steht, wobei dieser Endabschnitt 86 in einem Mitnehmer 92 drehbar gelagert ist, der um eine zur vertikalen Achse 46, nachfolgend auch zweite Achse genannt, parallele Mitnehmerachse 94 verschwenkbar im Befestigungssockel 24 gelagert ist. Der Mitnehmer 92 besitzt eine zylindrische, in Richtung auf den Lagerbock 48 geöffnete Ausnehmung 96, in welcher die Hülse 100 parallel zur Achse des Endabschnittes 86 der Stellwelle 88 drehbar gelagert ist, wobei die Anordnung so getroffen ist, daß die Hülsenachse mit der Achse der Antriebswelle 76 fluchtet, wenn sich der Mitnehmer 92 in bezug auf die Mitnehmerachse 94 in einer mittleren Winkelstellung befindet. Die Stellwelle 88 ragt mit einer als Handhabe 98 dienenden Verlängerung aus dem Befestigungssockel 24.At its end protruding from the bearing block 48, the drive shaft 76 has a spherical outer surface having section 82 which is provided with a radially projecting driver tooth 84. The portion 82 is enclosed by a cylindrical sleeve 100, which on its inner surface with a axially parallel groove 102 is provided, in which the driver tooth 84 engages. On its outer surface is the sleeve 100 is provided with a toothing 104, which at a cylindrical end portion 86 a Actuating shaft 88 formed teeth 90 of a spur toothing in engagement, this end portion 86 is rotatably mounted in a driver 92, which is about a vertical axis 46, subsequently also a second axis called, parallel driver axis 94 is pivotably mounted in the mounting base 24. The driver 92 has a cylindrical recess 96 which is open in the direction of the bearing block 48 and in which the Sleeve 100 is rotatably mounted parallel to the axis of the end section 86 of the actuating shaft 88, the arrangement is made so that the sleeve axis is aligned with the axis of the drive shaft 76 when the driver 92 with respect to the driver axis 94 is in a central angular position. The actuating shaft 88 protrudes with a Extension from the fastening base 24, serving as a handle 98.

Wird die Handhabe 98 bewegt, um den Endabschnitt 86 um seine Achse zu drehen, so wird diese Drehbewegung unabhängig von der Winkelstellung zwischen Antriebswelle 76 und Stellwelle 88 auf die Antriebswelle 76 zu einer gegenläufigen Bewegung und von dieser wiederum gegenläufig auf das Gelenkstück 54 übertragen, so daß das Spiegelgehäuse 10 eine zur Bewegung der Handhabe 98 analoge Bewegung ausführen wird.If the handle 98 is moved in order to rotate the end section 86 about its axis, this becomes Rotational movement regardless of the angular position between drive shaft 76 and adjusting shaft 88 on the Drive shaft 76 to move in opposite directions and from this in turn in opposite directions to the joint piece 54 transmitted, so that the mirror housing 10 has a movement analogous to the movement of the handle 98 will perform.

Wird die Handhabe 98 um die Mitnehmerachse 94 verschwenkt, wird durch die Ausnehmung % eine gegenläufige Bewegung auf die Antriebswelle 76 zur Verschwenkung des Lagerbocks 48 um die zweite Achse 46 übertragen. Da in bezug auf diese zweite Achse 46 das Spiegelgehäuse 10 einerseits und die Antriebswelle 76 andererseits die beiden Schenkel eines zweiarmigen Hebels darstellen, wird das Spiegelgehäuse in die gleiche Richtung, bezogen auf die Fahrtrichtung, verschwenkt wie die Handhabe 98.If the handle 98 is pivoted about the driver axis 94, the recess% becomes a opposite movement on the drive shaft 76 for pivoting the bearing block 48 about the second Transfer axis 46. Since with respect to this second axis 46, the mirror housing 10 on the one hand and the Drive shaft 76, on the other hand, represent the two legs of a two-armed lever, becomes the mirror housing pivoted in the same direction with respect to the direction of travel as the handle 98.

Hierzu 3 Blatt ZeichnungenFor this purpose 3 sheets of drawings

Claims

Claim:

Mechanically adjustable vehicle exterior rearview mirror with a mounting base, mechanically adjustable from inside the vehicle, one adjustably mounted on the mounting base and carrying a mirror pane Mirror housing and one adjustable with respect to the mounting base with the mirror housing gear-connected actuator, the mirror housing with a joint piece around a Center of rotation pivotable with a ball joint on the mounting base and around a first, radial to Drehzeiitrum extending axis rotatable on one in turn around a second, to the first axis in Angle offset, also mounted radially to the center of rotation axis rotatable bearing block is, wherein a parallel to the first axis drive shaft is rotatably mounted in the bearing block, the, for Transmission of a rotational movement in the opposite direction to its own rotational movement, with the the mirror housing connected to the joint piece is in gear connection, furthermore the bearing block and a driver axis opposite the fastening base, parallel to the second axis rotatable drivers are coupled to one another for executing counter-rotating movements, and wherein one for transmitting a counter-rotating movement with the drive shaft in gear connection standing control shaft rotatably mounted in the driver and as an actuator with one of the Fastening base is provided outstanding handle, according to patent 28 20 714, thereby characterized in that the drive shaft (76) is in gear connection with the control shaft (88) standing portion (82) has a spherical outer surface, which of a in the driver (92) is enclosed around an axis parallel to the control shaft rotatably mounted sleeve (100) that the spherical portion is provided with a radially projecting driver tooth (84) which is in a axially parallel groove (102) engages on the inner surface of the sleeve, and that the sleeve with external teeth (104) is provided with a toothing (90) at the adjacent end (86) of the Actuating shaft is in engagement.

The invention relates to a vehicle exterior rearview mirror that is mechanically adjustable from inside the vehicle with a mounting base, one adjustably mounted on the mounting base, one Mirror housing carrying the mirror pane and an adjustable with respect to the mounting base the mirror housing in gear connection actuator, the mirror housing with a Joint piece pivotable in a ball-and-socket manner around a center of rotation on the mounting base and around a first, Axis running radially to the center of rotation is rotatable on one side around a second axis, in relation to the first axis Angularly offset, also radially to the center of rotation axis rotatable bearing block is mounted, wherein a drive shaft parallel to the first axis is rotatably mounted in the bearing block and is used for transmission suitable for a rotational movement in the opposite direction to its own rotational movement, with the with the Joint piece connected mirror housing is in gear connection, furthermore the bearing block and a about a driver axis parallel to the second axis relative to the mounting base rotatable driver are coupled to each other to perform counter-rotating movements, and one for Transmission of a counter-rotating movement with the drive shaft in gear connection Control shaft rotatably mounted in the driver and as

ίο Actuator with one from the mounting base outstanding handle is provided, according to patent 28 20 714.

This construction, which has comparatively few individual parts, can be made extremely compact, so that the mounting base can be attached instead of the mounting base of conventional mirrors. By turning the handle, the mirror pane executes an analog movement that is the tilting movement represents, while by a pivoting movement of the handle about the driver axis an analog Movement of the mirror can be caused to pivot the mirror. Since the ball joint-like Storage of the mirror housing offers the possibility of the mirror housing in each case on the shortest path To move to the desired position, the adjustment process is very simple. In addition, the construction allows a smooth and jerk-free and at the same time sensitive setting. After all, it's constructive Construction so simple that the mirror is internally adjustable in comparison to known constructions can be produced very cheaply.

In the embodiment described in the main patent, the actuating shaft has on its inside the Driver mounted end on a toothing which is in engagement with a toothing on the spherical outer surface of that portion of the drive shaft is formed which is in a recess of the driver engages in opposite directions to the pivoting movement of the actuating shaft about the driver axis to transfer the bearing block. The production of a toothing on the spherical surface is technically difficult and requires the use of steel because the teeth at both ends become relatively thin and otherwise they will not be able to withstand the load.

As a result, on the one hand, there is a weak point that requires special effort, on the other hand, it is a problem this effort is reflected in the price.

The invention is based on the object of further developing the exterior mirror according to the main patent

to improve so that the toothed spherical surface can be omitted, whereby special material expenditure can be omitted and the mirror is even more cost-effective can be produced. In addition, possible wear is to be avoided by avoiding the toothed spherical surface can be prevented due to high stress, which in turn leads to play and thus to a distorted reflection.

The solution to the problem is that the drive shaft is in gear connection with the actuating shaft standing section has a spherical outer surface, which from one to the driver to one Adjusting shaft parallel axis rotatably mounted sleeve is enclosed that the spherical section with a radially projecting driver pin is provided, the

(v into an axially parallel groove on the inner surface of the sleeve engages, and that the sleeve is provided with external teeth with teeth on which you adjacent end of the actuating shaft is in engagement.