FR2530801A1 - Device for sensing the angular position of a shaft whose angle of rotation is limited - Google Patents
Device for sensing the angular position of a shaft whose angle of rotation is limited Download PDFInfo
- Publication number
- FR2530801A1 FR2530801A1 FR8212727A FR8212727A FR2530801A1 FR 2530801 A1 FR2530801 A1 FR 2530801A1 FR 8212727 A FR8212727 A FR 8212727A FR 8212727 A FR8212727 A FR 8212727A FR 2530801 A1 FR2530801 A1 FR 2530801A1
- Authority
- FR
- France
- Prior art keywords
- shaft
- rotation
- cam
- angle
- angular position
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
-
- 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
- H01H19/54—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 the operating part having at least five or an unspecified number of operative positions
- H01H19/60—Angularly-movable actuating part carrying no contacts
- H01H19/62—Contacts actuated by radial cams
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
L'invention se rapporte à un capteur associé à un arbre susceptible de tourner autour de son axe d'un nombre de tours limité et destiné à fournir soit une information par tout ou rien pour une position angulaire donnée de l'arbre, soit une information continue en fonction de l'angle de rotation. The invention relates to a sensor associated with a shaft capable of rotating around its axis by a limited number of turns and intended to provide either all-or-nothing information for a given angular position of the shaft, or information continues according to the angle of rotation.
A titre d'exemple d'application, on sait que, dans un dispositif d'assistance de direction sur un véhicule automobile, on peut arrêter la pompe hydraulique d'assistance lorsque le véhicule circule en ligne droite, ce qui permet d'économiser de l'énergie, donc de réduire la consommation du véhicule.L'arrêt de l'assistance en ligne droite peut être commandé au wosren d'un capteur coCDé- avec une came située sur la colonne de direction.Malheureusement, cette disposition présente l'inconvénient dYarreer également l'assis - tance lorsque le volant a été tourné de 360 degrés, ce qui peut être particulièrement gênant dans un virage important correspondant sensiblement à cet angle de rotation du volant. As an example of an application, it is known that, in a steering assistance device on a motor vehicle, the hydraulic assistance pump can be stopped when the vehicle is traveling in a straight line, which saves energy, therefore to reduce the consumption of the vehicle. The stopping of the assistance in a straight line can be ordered with the wosren of a coCD- sensor with a cam located on the steering column. Unfortunately, this provision presents the drawback of also assisting when the steering wheel has been turned 360 degrees, which can be particularly troublesome in a large turn corresponding substantially to this angle of rotation of the steering wheel.
L'invention a pour but de remédier à cet inconvénient. The invention aims to remedy this drawback.
Elle concerne donc un capteur de position angulaire d'un arbre à angle de rotation limité, comportant un palpeur coopérant avec au moins une came portée par l'arbre. Ce capteur est caractérisé en ce que l'arbre porte au moins une surface hélicoRåa- le assurant le guidage du palpeur sur un angle au moins égal à l'angle maximal de rotation de l'arbre. It therefore relates to an angular position sensor of a shaft with limited angle of rotation, comprising a feeler cooperating with at least one cam carried by the shaft. This sensor is characterized in that the shaft carries at least one helical surface ensuring the guiding of the probe over an angle at least equal to the maximum angle of rotation of the shaft.
Un exemple de réalisation de l'invention fait l'objet de la description qui suit, en référence aux dessins joints dans les quels
- la Fig. I montre, en perspective, un capteur des tiné à interrompre une assistance de direction sur un véhicule automobile, lorsque ce dernier circule en ligne droite
- la Fig. 2 est une vue en coupe suivant la ligne 2-2 de la Fig. 1 ;
- la Fig. 3 est un développement. de la bande avec laquelle coopère le palpeur, dans le capteur représenté aux Fig. 1 et 2.An exemplary embodiment of the invention is the subject of the following description, with reference to the accompanying drawings in which
- Fig. I shows, in perspective, a sensor for interrupting steering assistance on a motor vehicle, when the latter is traveling in a straight line
- Fig. 2 is a sectional view along line 2-2 of FIG. 1;
- Fig. 3 is a development. of the strip with which the probe cooperates, in the sensor shown in FIGS. 1 and 2.
Le capteur représenté sur les Figs. est associé à une colonne de direction 1 de véhicule automobile. Autour de cette colonne est disposé un manchon 2 qui peut être soit surmoulé, soit emmanché et fixé sur la colonne par tout moyen approprié, par exemple une vis 3. The sensor shown in Figs. is associated with a steering column 1 of a motor vehicle. Around this column is a sleeve 2 which can be either overmolded or fitted and fixed on the column by any suitable means, for example a screw 3.
Sur la-surface extérieure du manchon est formée une nervure hélicoidale 4 dont les spires ddlimitent une bande 5 comportant un nombre de tours au moins égal au nombre de tours que peut effectuer la colonne de direction 1 entre ses deux positions extrêmes de braquage.A égale distance des deux extrémités de la bande 5, cette dernière forme une came 6. On the outer surface of the sleeve is formed a helical rib 4, the turns of which delimit a band 5 comprising a number of turns at least equal to the number of turns that the steering column 1 can perform between its two extreme turning positions. distance from the two ends of the strip 5, the latter forms a cam 6.
Sur une partie fixe 7 du véhicule, proche de la colonne de direction 1, est fixé un interrupteur 8 muni d'un bouton poussoir 9 soumis à l'action d'un linguet 10. Ce dernier est articulé, à une de ses extrémités, sur la partie fixe 7, autour d'un pivot 11 d'axe orthogonal à celui X-X de la colonne de direction. A son autre extrémité, le linguet 10 porte un palpeur 12 maintenu élastiquement en appui sur la bande 5 entre deux spires voisines de la nervure 4. On a fixed part 7 of the vehicle, close to the steering column 1, is fixed a switch 8 provided with a push button 9 subjected to the action of a latch 10. The latter is articulated, at one of its ends, on the fixed part 7, around a pivot 11 of axis orthogonal to that XX of the steering column. At its other end, the latch 10 carries a feeler 12 which is resiliently supported on the strip 5 between two turns adjacent to the rib 4.
L'orientation du linguet 10 est telle que le palpeur 12 est placé au droit de la came 6 lorsque l'orientation de la colonne de direction 1 correspond à un déplacement rectiligne du véhicule.De cette façon , Si l'interrupteur 8 contrôle l'assistance de direction du véhicule, on voit que cette assistance est interrompue lorsque le véhicule circule en ligne droite, ce qui permet d'économiser de l'énergie. The orientation of the latch 10 is such that the feeler 12 is placed in line with the cam 6 when the orientation of the steering column 1 corresponds to a rectilinear movement of the vehicle. In this way, If the switch 8 controls the vehicle steering assistance, it can be seen that this assistance is interrupted when the vehicle is traveling in a straight line, which saves energy.
Par contre, cette interruption ne se produit pas lorsque la colonne de direction a été tournée dans un sens ou dans l'autre, d'un nombre
exact de tours par rapport à la position précédente, car le palpeur
12 guidé par les faces en regard 4a de la nervure 4, s'est déplacée transversalement, en tournant autour du pivot 11, et ne se trouve plus face à la came 6.However, this interruption does not occur when the steering column has been turned in one direction or the other, by a number
exact turns from the previous position, because the probe
12 guided by the facing faces 4a of the rib 4, has moved transversely, turning around the pivot 11, and is no longer facing the cam 6.
Naturellement, l'invention n'est pas limitée à l'application envisagée ci-dessus.Pour d'autres applications,la bande 5 peut comporter plusieurs cames telles que 6,ou même être constituée par une rampe continue fournissant une information fonction de l'angle de rotation de l'arbre. Naturally, the invention is not limited to the application envisaged above. For other applications, the strip 5 can comprise several cams such as 6, or even consist of a continuous ramp providing information depending on the 'angle of rotation of the shaft.
De même, la surface hélicoidale de guidage du palpeur peut être réalisée en creux dans le manchon 2,la bande avec laquelle le palpeur est en contact peut être au sommet de la surface hélicoi- dale et non dans le fond, la came d'actionnement peut être en creux au lieu d'être en saillie, la rampe hélicoldale et la came peuvent faire -me U+égrale de l'ar'e,etc Likewise, the helical guide surface of the probe can be hollowed out in the sleeve 2, the strip with which the probe is in contact can be at the top of the helical surface and not in the bottom, the actuating cam can be recessed instead of projecting, the helical ramp and the cam can make -me U + equal to the edge, etc.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8212727A FR2530801A1 (en) | 1982-07-21 | 1982-07-21 | Device for sensing the angular position of a shaft whose angle of rotation is limited |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8212727A FR2530801A1 (en) | 1982-07-21 | 1982-07-21 | Device for sensing the angular position of a shaft whose angle of rotation is limited |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2530801A1 true FR2530801A1 (en) | 1984-01-27 |
FR2530801B1 FR2530801B1 (en) | 1985-01-11 |
Family
ID=9276164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8212727A Granted FR2530801A1 (en) | 1982-07-21 | 1982-07-21 | Device for sensing the angular position of a shaft whose angle of rotation is limited |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2530801A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1081563A1 (en) * | 1999-09-01 | 2001-03-07 | Montres Rolex Sa | Bracelet type watch |
WO2010023292A1 (en) * | 2008-08-30 | 2010-03-04 | Leopold Kostal Gmbh & Co. Kg | Arrangement for protecting a rotatable operating element in a motor vehicle from excessive rotation |
CN110125833A (en) * | 2019-05-16 | 2019-08-16 | 沈阳飞机工业(集团)有限公司 | A kind of fixture for examining twisting joint notch angles |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE636500C (en) * | 1935-04-06 | 1936-10-10 | Knorr Bremse Akt Ges | Power steering device |
DE705517C (en) * | 1937-09-24 | 1941-04-30 | Siemens Schuckertwerke Akt Ges | Cam switch, especially for rail vehicles |
DE1276473B (en) * | 1963-12-13 | 1968-08-29 | Magneti Marelli Spa | Power steering for vehicles |
DE2339369A1 (en) * | 1973-08-03 | 1975-02-13 | Bosch Gmbh Robert | Position selecting switch controlling actuator motor - comprises disc with spiral groove allowing several turns between limits |
FR2323564A1 (en) * | 1975-09-11 | 1977-04-08 | Lucas Industries Ltd | Sensor for servo assisted steering - with strain gauge to monitor force on steering column |
FR2435379A1 (en) * | 1978-09-08 | 1980-04-04 | Bosch Gmbh Robert | ELECTROHYDRAULIC ASSISTED STEERING |
-
1982
- 1982-07-21 FR FR8212727A patent/FR2530801A1/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE636500C (en) * | 1935-04-06 | 1936-10-10 | Knorr Bremse Akt Ges | Power steering device |
DE705517C (en) * | 1937-09-24 | 1941-04-30 | Siemens Schuckertwerke Akt Ges | Cam switch, especially for rail vehicles |
DE1276473B (en) * | 1963-12-13 | 1968-08-29 | Magneti Marelli Spa | Power steering for vehicles |
DE2339369A1 (en) * | 1973-08-03 | 1975-02-13 | Bosch Gmbh Robert | Position selecting switch controlling actuator motor - comprises disc with spiral groove allowing several turns between limits |
FR2323564A1 (en) * | 1975-09-11 | 1977-04-08 | Lucas Industries Ltd | Sensor for servo assisted steering - with strain gauge to monitor force on steering column |
FR2435379A1 (en) * | 1978-09-08 | 1980-04-04 | Bosch Gmbh Robert | ELECTROHYDRAULIC ASSISTED STEERING |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1081563A1 (en) * | 1999-09-01 | 2001-03-07 | Montres Rolex Sa | Bracelet type watch |
US6422740B1 (en) | 1999-09-01 | 2002-07-23 | Montres Rolex S. A. | Wristwatch |
WO2010023292A1 (en) * | 2008-08-30 | 2010-03-04 | Leopold Kostal Gmbh & Co. Kg | Arrangement for protecting a rotatable operating element in a motor vehicle from excessive rotation |
CN110125833A (en) * | 2019-05-16 | 2019-08-16 | 沈阳飞机工业(集团)有限公司 | A kind of fixture for examining twisting joint notch angles |
Also Published As
Publication number | Publication date |
---|---|
FR2530801B1 (en) | 1985-01-11 |
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