WO1998007037A1 - Fastening device for the sensor of a speed of rotation measurement system - Google Patents

Fastening device for the sensor of a speed of rotation measurement system Download PDF

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Publication number
WO1998007037A1
WO1998007037A1 PCT/DE1997/000825 DE9700825W WO9807037A1 WO 1998007037 A1 WO1998007037 A1 WO 1998007037A1 DE 9700825 W DE9700825 W DE 9700825W WO 9807037 A1 WO9807037 A1 WO 9807037A1
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WO
WIPO (PCT)
Prior art keywords
sensor
spring clip
bolt
fastening device
housing
Prior art date
Application number
PCT/DE1997/000825
Other languages
German (de)
French (fr)
Inventor
Thomas Ullmann
Hans-Juergen Herderich
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to AU29493/97A priority Critical patent/AU2949397A/en
Publication of WO1998007037A1 publication Critical patent/WO1998007037A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments

Definitions

  • the invention is based on a fastening device for a sensor of a speed measurement system in the area of a motor vehicle wheel support with the aid of an at least partially resilient support according to the preamble of claim 1.
  • a fastening device for a sensor of a speed measurement system which includes, inter alia, a disk-shaped or plate-shaped carrier which is arranged on a wheel carrier of a non-driven motor vehicle wheel.
  • the carrier sits there clamped between a roller bearing inner ring and a shoulder of the wheel carrier. It has a rectangular recess on its circumference radially to the axis of rotation of the motor vehicle wheel, which is slightly narrower than the width of the sensor housing.
  • the sensor housing has grooves on both sides which, in the case of a sensor used in the carrier, encompass the lateral edges of the rectangular recess, so that the sensor is fixed in the circumferential direction and parallel to the center line of the wheel carrier.
  • a spring clip with a lock made of wire or sheet metal is, inter alia, on the disk or plate-shaped carrier arranged, which engages in an existing notch on the sensor housing.
  • the combination of notch and spring clip has only one locking function.
  • the sensor can be removed from its position by an improper pull on the sensor cable.
  • this type of fastening there is a risk that if the spring action of the spring clip diminishes, the sensor will slide radially out of the holder and be destroyed between the standing and rotating parts of the wheel bearing.
  • the electronic part of the anti-lock braking system can at least be damaged by an occurring short circuit.
  • the fastening device in the area of the locking mechanism is additionally equipped with at least one bolt lock consisting of a bolt and a bolt recess.
  • an exclusively positive locking mechanism is arranged.
  • the bolt is arranged either on the spring clip of the carrier or on the housing of the sensor, while the corresponding bolt recess is located either on the housing or on the spring clip.
  • the spring clip in this case forms the component which holds the latch lock elastically, regardless of whether it carries the latch or has the latch recess. Due to the positive engagement of the bolt and bolt recess, the Riegeiges lock is essentially independent of the holding force of the spring clip. The Riegeige lock locks the sensor in the area of its position necessary for its function, even if the residual clamping force of the spring clip for the locking lock is less than zero, i.e. the locking mechanism only holds the sensor with play.
  • the senor can no longer be removed from its holder by pulling the sensor cable.
  • a tool such as e.g. a screwdriver or the like is necessary.
  • the sensor housing or the carrier can be equipped with a stop element, the stop surface of which runs approximately parallel to the rear of the sensor housing and possibly transversely to the spring clip, the distance being slightly greater than the overall height of the spring clip in the area of the elements of its locking and locking mechanism .
  • the stop element prevents the spring bracket from stretching too far.
  • the opening travel of the spring clip is limited by the stop element to a stroke which is only insignificantly greater than the depth of penetration of the bolt into the bolt recess.
  • the stop element can also be part of a pocket or other recess in which the spring clip engages.
  • FIG. 1 fastening device for a speed sensor in the wheel bearing area (prior art)
  • FIG. 2 fastening device as in FIG. 1 with an additional locking bar
  • FIG 3 Fastening device as in Figure 2 with an upper expansion protection.
  • a fastening device as shown in FIG. 1 is known from the prior art. About half of the carrier (20) with the clipped-on speed sensor (1) can be seen there.
  • the carrier (20) consists of a plate-shaped carrier disc (21) made of a metal sheet, the center line (25) of which is congruent with the center line of a wheel carrier (not shown).
  • the inner flat area of the carrier disc (21) is usually clamped axially, e.g. between a roller bearing inner ring and a shoulder of the wheel carrier.
  • the laterally offset, also flat edge (22) has, for example, a rectangular recess in the area of the sensor (1).
  • the recess may be created by forming the spring clip (23) by means of forming.
  • the edge (22) is cut in two places and the spring clip (23) is formed by bending.
  • the spring clip (23) has sufficient elasticity due to a suitable choice of material and / or heat treatment.
  • the spring clip (23) has an approximately rectangular shape, the horizontal section of which is tangential here from the carrier disc (21) emerges.
  • the vertical section is aligned parallel to the edge (22).
  • a locking lug (24) serving as a blocker, which is formed by double bending.
  • the latching edge of the latching lug (24) runs transversely to the radial direction and transversely to the center line (25).
  • the spring clip (23) can be arranged in this or other form as an independent carrier on a non-rotating component of the wheel carrier.
  • the sensor (1) is surrounded by a housing (2), from the upper area of which a sensor cable (9) is led out.
  • the sensor housing (2) has a largely flat scanning side (12) which faces a multipole ring (not shown) or the like.
  • the back (13) of the housing (2) includes a housing chamfer (6) and a notch (7) located above it.
  • Grooves (3) are formed in the side walls (11), the flanks of which enclose the edge (22) of the carrier disk (21) in the recess.
  • the flanks of the grooves (3) facing the locking notch (7) are the guide surfaces (4) which specify the distance between the sensor housing (2) and the multipole ring.
  • the two base surfaces (5) of the grooves (3) determine the position and the play in the initial direction of the wheel rotation.
  • the sensor housing (2) When the sensor (1) is attached to the carrier (20), the sensor housing (2) is engaged in the recess in the edge (22) via its grooves (3). After the first millimeters of insertion, the locking lug (24) rests on the housing chamfer (6) and bends the spring clip (23) elastically when the sensor housing (2) is inserted again. As soon as the locking lug (24) fits into the locking notch (7), the assembly process is finished.
  • the locking mechanism on the one hand fixes the transmission sensor (1) in the radial direction and on the other hand, it presses the guide surfaces (4) of the sensor housing (2) axially against the edge (22) of the carrier disk (21) via the spring clip (23).
  • Dismantling is carried out without tools by radially pulling the sensor housing (2) off the carrier disc (21).
  • FIG. 2 shows a fastening device which is extended by a bolt lock.
  • the latch lock here comprises a hook-shaped latch (41) arranged on the spring clip (23) and a latch recess (31) recessed in the sensor housing (2).
  • the bolt (41) is formed here by punching and bending from the spring clip (23). It protrudes vertically towards the sensor (1). Its length corresponds approximately to one and a half times the average sheet thickness of the spring clip (23).
  • the locking recess (31) runs perpendicular to the scanning side (12) of the sensor housing (2). It is deeper than the bar (41) and has a cross-section that is larger than that of the bar (41). In the assembled state, the bolt (41) does not touch the wall of the bolt recess (31). In this way, an additional, superfluous centering is prevented in addition to the centering by the guide surfaces (4), the groove base surfaces (5) and the locking mechanism (7, 24). The lateral distance of the bolt (41) from the bolt recess (31) is just so large that the function of the tachometer is guaranteed when the spring clip (23) no longer clamps properly.
  • the housing chamfer (6) is designed to be enlarged to such an extent that the sensor housing (2) can be mounted in the carrier (20) without tools.
  • the bar (41) is rounded at least at its free end in the direction of the sensor cable (9), so that it slides along the housing chamfer (6) during installation without hooks.
  • Figure 3 shows a fastening device with an angular stop bracket (32).
  • the latter is molded onto the side surface of the sensor housing (2), not shown.
  • the stop surface (33) of the stop bracket (32) runs approximately parallel to the spring bracket (23) when the sensor (1) is mounted.
  • the distance is slightly larger than the overall height of the spring clip (23) in the area of the elements (24, 41) of its locking and locking mechanism.
  • the stop bracket (32) prevents the spring bracket (23) from being stretched too far by the dismantling tool. With the dismantling tool, the spring clip (23) can only be lifted or opened until its free end lies against the stop clip (32). In this open position, the bolt (41) has completely left the bolt recess (31).
  • the length of the bolt (41) and the distance of the stop surface (33) from the rear (13) of the sensor housing (2) are designed so that the spring clip (23) can only be elastically deformed for opening.
  • the stop element (32) can also consist of several parts, which include Collar or bridge over more than one side of the spring clip.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

A fastening device is disclosed for the sensor of a speed of rotation measurement system arranged in the area of a motor vehicle wheel carrier by means of an at least partially resilient elastic support. The sensor has in the side walls of its housing guiding surfaces which rest on the carrier and determine its position in at least two directions, and in the back side of its housing a catching notch which at least in some sections is approximately perpendicular to the mounting direction. A resilient hoop arranged on the carrier and provided with a stopper snaps into the catching notch. In addition, the fastening device is provided in the area of the catch with at least one locking mechanism with a lock and a locking recess. The fastening device thus has besides the form-fitting and positive catch an exclusively form-fitting locking mechanism.

Description

Befestigungsvorrichtung für einen Sensor eines Drehzahlmeßsystems Fastening device for a sensor of a speed measuring system
Stand der TechnikState of the art
Die Erfindung geht von einer Befestigungsvorrichtung für einen Sensor eines Drehzahlmeßsystems im Bereich eines Kraftfahr- zeugradträgers mit Hilfe eines zumindest bereichsweise federelastischen Trägers nach dem Oberbegriff des Anspruchs 1 aus.The invention is based on a fastening device for a sensor of a speed measurement system in the area of a motor vehicle wheel support with the aid of an at least partially resilient support according to the preamble of claim 1.
Ein derartiger Gegenstand ist aus der EP 0 619 438 AI be- kannt. Dort wird eine Befestigungsvorrichtung für einen Sensor eines Drehzahlmeßsystems beschrieben, die u.a. einen scheiben- bzw. tellerförmigen Träger umfaßt, der auf einem Radträger eines nicht angetriebenen Kraftfahrzeugrades angeordnet ist. Der Träger sitzt dort eingeklemmt zwischen einem Wälzlagerinnen- ring und einer Schulter des Radträgerε. Er hat an seinem Umfang radial zur Rotationsachse des Kraftfahrzeugrades eine rechteckige Ausnehmung, die geringfügig schmäler ist als die Breite des Sensorgehäuses. Das Sensorgehäuse hat beidseits Nuten, die bei einem im Träger eingesetzten Sensor die seit- liehen Ränder der rechteckigen Ausnehmung umgreifen, so daß der Sensor in Umfangsrichtung und parallel zur Mittellinie des Radträgers festgelegt ist. Für eine Fixierung des Sensors in radialer Richtung ist u.a. am Scheiben- bzw. tellerförmigen Träger ein Federbügel mit einem Sperrer aus Draht oder Blech angeordnet, der in eine am Sensorgehäuse vorhandene Rastkerbe eingreift .Such an object is known from EP 0 619 438 AI. There, a fastening device for a sensor of a speed measurement system is described, which includes, inter alia, a disk-shaped or plate-shaped carrier which is arranged on a wheel carrier of a non-driven motor vehicle wheel. The carrier sits there clamped between a roller bearing inner ring and a shoulder of the wheel carrier. It has a rectangular recess on its circumference radially to the axis of rotation of the motor vehicle wheel, which is slightly narrower than the width of the sensor housing. The sensor housing has grooves on both sides which, in the case of a sensor used in the carrier, encompass the lateral edges of the rectangular recess, so that the sensor is fixed in the circumferential direction and parallel to the center line of the wheel carrier. To fix the sensor in the radial direction, a spring clip with a lock made of wire or sheet metal is, inter alia, on the disk or plate-shaped carrier arranged, which engages in an existing notch on the sensor housing.
Die Kombination aus Rastkerbe und Federbügel hat nur eine Rastfunktion. Folglich kann der Sensor durch einen unsachgemäßen Zug am Sensorkabel aus seiner Position entfernt werden. Außerdem besteht bei dieser Befestigungsart die Gefahr, daß bei einem Nachlassen der Federwirkung des Federbügels der Sensor radial aus der Halterung rutscht und zwischen den ste- henden und rotierenden Teilen der Radlagerung zerstört wird, wodurch u.a. der elektronische Teil des Antiblockiersyste s durch einen auftretenden Kurzschluß zumindest geschädigt werden kann.The combination of notch and spring clip has only one locking function. As a result, the sensor can be removed from its position by an improper pull on the sensor cable. In addition, with this type of fastening there is a risk that if the spring action of the spring clip diminishes, the sensor will slide radially out of the holder and be destroyed between the standing and rotating parts of the wheel bearing. the electronic part of the anti-lock braking system can at least be damaged by an occurring short circuit.
Vorteile der Erfindung:Advantages of the invention:
Bei dem Gegenstand der Erfindung ist die Befestigungsvorrichtung im Bereich des Rastgesperres zusätzlich mit mindestens einem aus einem Riegel und einer Riegelausnehmung bestehenden Riegeigesperre ausgestattet. Somit ist neben dem form- und kraftschlüssigen Rastgesperre ein ausschließlich formschlüs- εiges Riegeigesperre angeordnet. Der Riegel ist entweder am Federbügel des Trägers oder am Ge- häuse des Sensors angeordnet, während sich die korrespondierende Riegelausnehmung entsprechend entweder am Gehäuse oder am Federbügel befindet. Der Federbügel bildet hierbei das das Riegeigesperre elastisch zuhaltende Bauteil, unabhängig davon, ob er den Riegel trägt oder die Riegelausnehmung aufweist. Durch den formschlüssigen Eingriff von Riegel und Riegelausnehmung ist das Riegeigesperre im wesentlichen unabhängig von der Haltekraft des Federbügels. Das Riegeigesperre fixiert den Sensor im Bereich seiner für seine Funktion notwendigen Lage, selbst wenn die Restklemmkraft des Federbügels für das Rast- gesperre kleiner Null wird, also das Rastgesperre den Sensor nur noch mit Spiel hält.In the subject matter of the invention, the fastening device in the area of the locking mechanism is additionally equipped with at least one bolt lock consisting of a bolt and a bolt recess. Thus, in addition to the positive and non-positive locking mechanism, an exclusively positive locking mechanism is arranged. The bolt is arranged either on the spring clip of the carrier or on the housing of the sensor, while the corresponding bolt recess is located either on the housing or on the spring clip. The spring clip in this case forms the component which holds the latch lock elastically, regardless of whether it carries the latch or has the latch recess. Due to the positive engagement of the bolt and bolt recess, the Riegeiges lock is essentially independent of the holding force of the spring clip. The Riegeige lock locks the sensor in the area of its position necessary for its function, even if the residual clamping force of the spring clip for the locking lock is less than zero, i.e. the locking mechanism only holds the sensor with play.
Außerdem kann der Sensor nicht mehr durch Ziehen am Sensorkabel aus seiner Halterung entfernt werden. Für die Demontage ist grundsätzlich ein Werkzeug, wie z.B. ein Schraubendreher oder dergleichen notwendig.In addition, the sensor can no longer be removed from its holder by pulling the sensor cable. A tool such as e.g. a screwdriver or the like is necessary.
Zusätzlich kann das Sensorgehäuse oder der Träger mit einem Anschlagelement ausgestattet sein, dessen Anschlagfläche mit Abstand zur Rückseite des Sensorgehäuses annähernd parallel und gegebenenfalls quer zum Federbügel verläuft, wobei der Abstand geringfügig größer ist als die Bauhöhe des Federbügels im Bereich der Elemente seines Rast- und Riegelgesperres . Das Anschlagelement verhindert bei einer unsachgemäßen Demontage das Oberdehnen des Federbügels. Der Öffnungsweg des Federbügels ist durch das Anschlagelement auf einen Hub begrenzt, der nur unwesentlich größer ist als die Eindringtiefe des Rie- gels in die Riegelausnehmung.In addition, the sensor housing or the carrier can be equipped with a stop element, the stop surface of which runs approximately parallel to the rear of the sensor housing and possibly transversely to the spring clip, the distance being slightly greater than the overall height of the spring clip in the area of the elements of its locking and locking mechanism . In the event of improper disassembly, the stop element prevents the spring bracket from stretching too far. The opening travel of the spring clip is limited by the stop element to a stroke which is only insignificantly greater than the depth of penetration of the bolt into the bolt recess.
Das Anschlagelement kann auch Teil einer Tasche oder einer anderen Aussparung sein, in die der Federbügel eingreift.The stop element can also be part of a pocket or other recess in which the spring clip engages.
Zeichnungen:Drawings:
Weitere Einzelheiten der Erfindung ergeben sich aus den bisher nicht zitierten Unteransprüchen und der nachfolgenden Beschreibung mehrerer schematisch dargestellter Ausführungsformen: Figur 1: Befestigungsvorrichtung für einen Drehzahlsensor im Radlagerungsbereich (Stand der Technik) ,Further details of the invention result from the subclaims not previously cited and the following description of several schematically illustrated embodiments: FIG. 1: fastening device for a speed sensor in the wheel bearing area (prior art),
Figur 2: Befestigungsvorrichtung wie in Figur 1 mit einem zusätzlichen Riegeigesperre,FIG. 2: fastening device as in FIG. 1 with an additional locking bar,
Figur 3: Befestigungsvorrichtung wie in Figur 2 mit einem Oberdehnschutz .Figure 3: Fastening device as in Figure 2 with an upper expansion protection.
Beschreibung des Ausführungsbeispiels:Description of the embodiment:
Aus dem Stand der Technik ist eine Befestigungsvorrichtung bekannt, wie sie in Figur 1 dargestellt ist. Dort ist etwa die Hälfte des Trägers (20) mit eingeclipstem Drehzahlsensor (1) zu sehen.A fastening device as shown in FIG. 1 is known from the prior art. About half of the carrier (20) with the clipped-on speed sensor (1) can be seen there.
Der Träger (20) besteht hier im Ausführungsbeispiel aus einer tellerförmigen, aus einem Metallblech gefertigten Träger- scheibe (21) , deren Mittellinie (25) mit der Mittellinie eines nicht dargestellten Radträgers deckungsgleich ist. Der innere plane Bereich der Trägerscheibe (21) wird in der Regel axial eingespannt, z.B. zwischen einem Wälzlagerinnenring und einer Schulter des Radträgers. Der seitlich versetzte, eben- falls plane Rand (22) hat im Bereich des Sensors (1) eine beispielsweise rechteckige Aussparung. Die Aussparung entsteht gegebenenfalls durch das Ausbilden des Federbügels (23) mittels Umformen. Der Rand (22) wird dazu an zwei Stellen eingeschnitten und der Federbügel (23) durch Biegen geformt. Der Federbügel (23) besitzt durch eine entsprechende Materialauswahl und/oder Wärmebehandlung eine ausreichende Elastizität.In the exemplary embodiment, the carrier (20) consists of a plate-shaped carrier disc (21) made of a metal sheet, the center line (25) of which is congruent with the center line of a wheel carrier (not shown). The inner flat area of the carrier disc (21) is usually clamped axially, e.g. between a roller bearing inner ring and a shoulder of the wheel carrier. The laterally offset, also flat edge (22) has, for example, a rectangular recess in the area of the sensor (1). The recess may be created by forming the spring clip (23) by means of forming. For this purpose, the edge (22) is cut in two places and the spring clip (23) is formed by bending. The spring clip (23) has sufficient elasticity due to a suitable choice of material and / or heat treatment.
Der Federbügel (23) hat eine annähernd rechtwinkelige Form, dessen horizontaler Abschnitt hier tangential aus der Träger- scheibe (21) hervorgeht. Der vertikale Abschnitt ist parallel zum Rand (22) ausgerichtet. Er trägt an seinem freien Ende eine als Sperrer dienende Rastnase (24) , die durch zweifaches Biegen gebildet ist. Die rastwirksame Kante der Rastnase (24) verläuft quer zur Radialrichtung sowie quer zur Mittellinie (25) .The spring clip (23) has an approximately rectangular shape, the horizontal section of which is tangential here from the carrier disc (21) emerges. The vertical section is aligned parallel to the edge (22). At its free end it carries a locking lug (24) serving as a blocker, which is formed by double bending. The latching edge of the latching lug (24) runs transversely to the radial direction and transversely to the center line (25).
Selbstverständlich kann der Federbügel (23) in dieser oder auch anderer Form als selbständiger Träger an einem nicht- rotierenden Bauteil des Radträgers angeordnet werden.Of course, the spring clip (23) can be arranged in this or other form as an independent carrier on a non-rotating component of the wheel carrier.
Der Sensor (1) ist von einem Gehäuse (2) umgeben, aus dessen oberem Bereich ein Sensorkabel (9) herausgeführt ist. Das Sen- sorgehäuse (2) hat eine weitgehend plane Abtastseite (12) die zu einem nicht dargestellten Multipolring oder dergleichen gewandt ist. Die Rückseite (13) des Gehäuses (2) beinhaltet u.a. eine Gehäusefase (6) und eine darüber gelegene Rastkerbe (7) . In die Seitenwandungen (11) sind Nuten (3) eingeformt, deren Flanken den Rand (22) der Trägerscheibe (21) in der Ausεparung umfassen. Die der Rastkerbe (7) zugewandten Flanken der Nuten (3) sind die Führungsflächen (4) die den Abstand zwischen dem Sensorgehäuse (2) und dem Multipolring vorgeben. Die beiden Grundflächen (5) der Nuten (3) bestimmen die Lage und das Spiel in U fangsrichtung der Raddrehung.The sensor (1) is surrounded by a housing (2), from the upper area of which a sensor cable (9) is led out. The sensor housing (2) has a largely flat scanning side (12) which faces a multipole ring (not shown) or the like. The back (13) of the housing (2) includes a housing chamfer (6) and a notch (7) located above it. Grooves (3) are formed in the side walls (11), the flanks of which enclose the edge (22) of the carrier disk (21) in the recess. The flanks of the grooves (3) facing the locking notch (7) are the guide surfaces (4) which specify the distance between the sensor housing (2) and the multipole ring. The two base surfaces (5) of the grooves (3) determine the position and the play in the initial direction of the wheel rotation.
Beim Befestigen des Sensors (1) auf dem Träger (20) wird das Sensorgehäuse (2) über seine Nuten (3) in die Ausparung im Rand (22) eingespurt. Nach den ersten Millimetern des Ein- Schiebens legt sich die Rastnase (24) an der Gehäusefase (6) an und biegt bei einem weiteren Einschieben des Sensorgehäuses (2) den Federbügel (23) elastisch auf. Sobald sich die Rastnase (24) in die Rastkerbe (7) einschmiegt, ist der Montagevorgang beendet. Das Rastgesperre fixiert zum einen den Sen- sor (1) in Radialrichtung und zum anderen preßt es über den Federbügel (23) die Führungsflächen (4) des Sensorgehäuses (2) axial gegen den Rand (22) der Trägerscheibe (21) .When the sensor (1) is attached to the carrier (20), the sensor housing (2) is engaged in the recess in the edge (22) via its grooves (3). After the first millimeters of insertion, the locking lug (24) rests on the housing chamfer (6) and bends the spring clip (23) elastically when the sensor housing (2) is inserted again. As soon as the locking lug (24) fits into the locking notch (7), the assembly process is finished. The locking mechanism on the one hand fixes the transmission sensor (1) in the radial direction and on the other hand, it presses the guide surfaces (4) of the sensor housing (2) axially against the edge (22) of the carrier disk (21) via the spring clip (23).
Die Demontage erfolgt ohne Werkzeug durch radiales Abziehen des Sensorgehäuses (2) von der Trägerscheibe (21) .Dismantling is carried out without tools by radially pulling the sensor housing (2) off the carrier disc (21).
Figur 2 zeigt eine Befestigungsvorrichtung, die um ein Riegel- gesperre erweitert ist. Das Riegeigesperre umfaßt hier einen am Federbügel (23) angeordneten hakenförmigen Riegel (41) und eine im Sensorgehäuse (2) eingelassene Riegelausnehmung (31). Der Riegel (41) ist hier durch Stanzen und Biegen aus dem Federbügel (23) herausgeformt. Er steht senkrecht in Richtung auf den Sensor (1) ab. Seine Länge entspricht ungefähr der eineinhalbfachen mittleren Blechstärke des Federbügels (23) .FIG. 2 shows a fastening device which is extended by a bolt lock. The latch lock here comprises a hook-shaped latch (41) arranged on the spring clip (23) and a latch recess (31) recessed in the sensor housing (2). The bolt (41) is formed here by punching and bending from the spring clip (23). It protrudes vertically towards the sensor (1). Its length corresponds approximately to one and a half times the average sheet thickness of the spring clip (23).
Die Riegelausnehmung (31) verläuft senkrecht zur Abtastseite (12) des Sensorgehäuses (2) . Sie ist tiefer als der Rie- gel (41) lang ist und hat einen Querschnitt, der größer als der des Riegels (41) ist. Im montierten Zustand berührt der Riegel (41) die Wandung der Riegelausnehmung (31) nicht. Auf diese Weise wird eine zusätzliche, überflüssige Zentrierung neben den Zentrierungen durch die Führungsflächen (4) , die Nutgrundflächen (5) und das Rastgesperre (7, 24) verhindert. Der seitliche Abstand des Riegels (41) von der Riegelausnehmung (31) ist gerade so groß, daß die Funktion des Drehzahlmessers bei einem nicht mehr einwandfrei klemmenden Federbügel (23) gewährt ist.The locking recess (31) runs perpendicular to the scanning side (12) of the sensor housing (2). It is deeper than the bar (41) and has a cross-section that is larger than that of the bar (41). In the assembled state, the bolt (41) does not touch the wall of the bolt recess (31). In this way, an additional, superfluous centering is prevented in addition to the centering by the guide surfaces (4), the groove base surfaces (5) and the locking mechanism (7, 24). The lateral distance of the bolt (41) from the bolt recess (31) is just so large that the function of the tachometer is guaranteed when the spring clip (23) no longer clamps properly.
Die Gehäusefase (6) ist soweit vergrößert ausgebildet, daß das Sensorgehäuse (2) ohne Werkzeug in den Träger (20) montiert werden kann. Zusätzlich ist der Riegel (41) an seinem freien Ende zumindest in Richtung Sensorkabel (9) abgerundet, so daß er bei der Montage ohne zu Haken an der Gehäusefase (6) entlanggleitet .The housing chamfer (6) is designed to be enlarged to such an extent that the sensor housing (2) can be mounted in the carrier (20) without tools. In addition, the bar (41) is rounded at least at its free end in the direction of the sensor cable (9), so that it slides along the housing chamfer (6) during installation without hooks.
Figur 3 zeigt eine Befestigungsvorrichtung mit einem winkelförmigen Anschlagbügel (32). Letzterer ist auf der nicht dargestellten Seitenfläche des Sensorgehäuses (2) angeformt. Die Anschlagfläche (33) des Anschlagbügels (32) verläuft bei montiertem Sensor (1) annähernd parallel zum Federbügel (23) . Der Abstand ist geringfügig größer als die Bauhδhe des Federbügels (23) im Bereich der Elemente (24, 41) seines Rast- und Riegelgesperres. Der Anschlagbügel (32) verhindert das Oberdehnen des Federbügels (23) durch das Demontagewerkzeug. Mit dem Demontagewerkzeug kann der Federbügel (23) nur soweit an- gehoben bzw. geöffnet werden, bis sein freies Ende am Anschlagbügel (32) anliegt. In dieser geöffneten Position hat der Riegel (41) die Riegelausnehmung (31) vollständig verlassen.Figure 3 shows a fastening device with an angular stop bracket (32). The latter is molded onto the side surface of the sensor housing (2), not shown. The stop surface (33) of the stop bracket (32) runs approximately parallel to the spring bracket (23) when the sensor (1) is mounted. The distance is slightly larger than the overall height of the spring clip (23) in the area of the elements (24, 41) of its locking and locking mechanism. The stop bracket (32) prevents the spring bracket (23) from being stretched too far by the dismantling tool. With the dismantling tool, the spring clip (23) can only be lifted or opened until its free end lies against the stop clip (32). In this open position, the bolt (41) has completely left the bolt recess (31).
Die Länge des Riegels (41) und der Abstand der Anschlagfläche (33) von der Rückseite (13) des Sensorgehäuses (2) sind so ausgelegt, daß der Federbügel (23) zum öffnen ausschließlich elastisch verformt werden kann.The length of the bolt (41) and the distance of the stop surface (33) from the rear (13) of the sensor housing (2) are designed so that the spring clip (23) can only be elastically deformed for opening.
Je nach der Größe des Sensorgehäuse (2) und der Breite des Federbügels (23) können an letzterem auch mehrere Riegeigesperre angeordnet werden. Auch das Anschlagelement (32) kann aus mehreren Teilen bestehen, die u.a. von mehr als einer Seite über den Federbügel kragen oder überbrücken. Depending on the size of the sensor housing (2) and the width of the spring clip (23), several locking bars can also be arranged on the latter. The stop element (32) can also consist of several parts, which include Collar or bridge over more than one side of the spring clip.

Claims

Patentansprüche : Claims:
1. Befestigungsvorrichtung für einen Sensor eines Drehzahlmeßsystems im Bereich eines Kraftfahrzeugradträgers mit Hilfe eines zumindest bereichsweise federelastischen Trägers, wobei der Sensor zum einen in den Seitenwandungen seines Gehäuses Führungsflächen aufweist, die am Träger anliegen und seine Lage in mindestens zwei Richtungen bestimmen, zum anderen an der Rückseite seines Gehäuses eine zumindest bereichsweise annähernd quer zur Montagerichtung verlaufende Rastkerbe hat, in die, ein Rastgesperre bildend, ein am Träger angeordneter, mit einem Sperrer versehener Federbügel einrastet, dadurch gekennzeichnet, daß im Bereich des Rastgesperres (7, 24) mindestens ein aus einem Riegel (41) und einer Riegelausnehmung (31) bestehendes Riegeigesperre angeordnet ist, wobei sich der Riegel (41) entweder am Federbügel (23) des Trägers (20) oder am Gehäuse (2) des Sensors (1) und die Riegelausnehmung (31) entsprechend entweder am Gehäuse (2) oder am Federbügel (23) befindet.1.Fixing device for a sensor of a speed measurement system in the area of a motor vehicle wheel carrier with the aid of an at least partially resilient support, the sensor having guide surfaces in the side walls of its housing, which bear against the support and determine its position in at least two directions, and on the other The back of its housing has an at least partially latching notch running transversely to the mounting direction, into which, forming a latching lock, a spring clip arranged on the carrier and provided with a lock engages, characterized in that in the area of the locking latch (7, 24) at least one of a Bolt (41) and a bolt recess (31) consisting of a locking bar is arranged, the bolt (41) either on the spring clip (23) of the carrier (20) or on the housing (2) of the sensor (1) and the bolt recess (31) is located either on the housing (2) or on the spring clip (23).
2. Befestigungsvorrichtung gemäß Anspruch 1, dadurch gekenn- zeichnet, daß die Führungsflächen (4) Bestandteil von Nuten (3) sind, die parallel zur Abtastseite des Sensorgehäuses (2) orientiert sind.2. Fastening device according to claim 1, characterized in that the guide surfaces (4) are part of grooves (3) which are oriented parallel to the scanning side of the sensor housing (2).
3. Befestigungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß der Bereich des Federbügels (23) , an oder in dem die Elemente (7, 34) und (31, 41) für das Rast- und Riegeigesperre angeordnet sind, annähernd parallel zu den Führungsflächen (4) verläuft. 3. Fastening device according to claim 1, characterized in that the region of the spring clip (23), on or in which the elements (7, 34) and (31, 41) for the locking and latch lock, are arranged approximately parallel to the guide surfaces (4) runs.
4. Befestigungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß der Riegel (41) ein aus dem Federbügel (23) herausgebogener Haken ist, der senkrecht zum Federbügel (23) in eine im Sensorgehäuse (2) angeordnete Riegelausnehmung (31) eingreift.4. Fastening device according to claim 1, characterized in that the bolt (41) is a bent out of the spring clip (23) hook which engages perpendicular to the spring clip (23) in a sensor recess (2) arranged bolt recess (31).
5. Befestigungsvorrichtung gemäß Anspruch 1 oder 4, dadurch gekennzeichnet, daß im montierten Zustand der Riegel (41) in die Riegelausnehmung (31) eingreift und zur Wandung der Riegelausnehmung (31) allseitig eine Abstand hat, der mindestens ein Fünftel der Blechstärke des Riegels (41) beträgt.5. Fastening device according to claim 1 or 4, characterized in that in the assembled state the bolt (41) engages in the bolt recess (31) and on all sides to the wall of the bolt recess (31) has a distance which is at least one fifth of the sheet thickness of the bolt ( 41) is.
6. Befestigungsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß am Sensorgehäuse (2) ein Anschlagelement (32) befestigt ist, dessen Anschlagfläche (33) mit einem Abstand zur Rückseite (13) des Sensorgehäuses (2) annähernd parallel zum Federbügel (23) verläuft, wobei der Abstand geringfügig größer ist als die Bauhδhe des Federbügels (23) im Bereich der Elemente (7, 34) und (31, 41) seines Rast- und Riegel- gesperres .6. Fastening device according to claim 1, characterized in that a stop element (32) is attached to the sensor housing (2), the stop surface (33) with a distance to the rear (13) of the sensor housing (2) extends approximately parallel to the spring clip (23) , wherein the distance is slightly larger than the overall height of the spring clip (23) in the area of the elements (7, 34) and (31, 41) of its locking and bolt lock.
7. Befestigungsvorrichtung gemäß Anspruch 6, dadurch gekennzeichnet, daß das Anschlagelement (32) ein Bügel ist, der quer zum Federbügel (23) ausgerichtet ist. 7. Fastening device according to claim 6, characterized in that the stop element (32) is a bracket which is aligned transversely to the spring clip (23).
PCT/DE1997/000825 1996-08-09 1997-04-25 Fastening device for the sensor of a speed of rotation measurement system WO1998007037A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29493/97A AU2949397A (en) 1996-08-09 1997-04-25 Fastening device for the sensor of a speed of rotation measurement system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19632214.6 1996-08-09
DE1996132214 DE19632214A1 (en) 1996-08-09 1996-08-09 Fastening device for a sensor of a speed measuring system

Publications (1)

Publication Number Publication Date
WO1998007037A1 true WO1998007037A1 (en) 1998-02-19

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ID=7802262

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Application Number Title Priority Date Filing Date
PCT/DE1997/000825 WO1998007037A1 (en) 1996-08-09 1997-04-25 Fastening device for the sensor of a speed of rotation measurement system

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AU (1) AU2949397A (en)
DE (1) DE19632214A1 (en)
TW (1) TW355217B (en)
WO (1) WO1998007037A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018648A1 (en) * 1970-02-09 1971-08-26 Coppieters De Gibsons W Device for connecting two elements
DE2340004A1 (en) * 1973-08-07 1975-02-20 Siemens Ag Locking device for multipin connectors - is for printed circuit board edge connectors at two ends of board
GB2173250A (en) * 1985-04-02 1986-10-08 Tucker Fasteners Ltd Weld stud and means for co- operating therewith
US4825156A (en) * 1988-03-30 1989-04-25 Schwinn Bicycle Company Signal detector for cycle computer with releasable strap frame mounting
EP0508977A1 (en) * 1991-04-09 1992-10-14 ISOVOLTAÖsterreichische IsolierstoffwerkeAktiengesellschaft Clip to connect two plate-like elements
EP0725281A1 (en) * 1995-02-03 1996-08-07 Snr Roulements Bearing seal incorporating an encoder and equipped with a sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018648A1 (en) * 1970-02-09 1971-08-26 Coppieters De Gibsons W Device for connecting two elements
DE2340004A1 (en) * 1973-08-07 1975-02-20 Siemens Ag Locking device for multipin connectors - is for printed circuit board edge connectors at two ends of board
GB2173250A (en) * 1985-04-02 1986-10-08 Tucker Fasteners Ltd Weld stud and means for co- operating therewith
US4825156A (en) * 1988-03-30 1989-04-25 Schwinn Bicycle Company Signal detector for cycle computer with releasable strap frame mounting
EP0508977A1 (en) * 1991-04-09 1992-10-14 ISOVOLTAÖsterreichische IsolierstoffwerkeAktiengesellschaft Clip to connect two plate-like elements
EP0725281A1 (en) * 1995-02-03 1996-08-07 Snr Roulements Bearing seal incorporating an encoder and equipped with a sensor

Also Published As

Publication number Publication date
DE19632214A1 (en) 1998-02-12
TW355217B (en) 1999-04-01
AU2949397A (en) 1998-03-06

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