EP1131832A1 - Detecteur de position avec mecanisme d'orientation - Google Patents
Detecteur de position avec mecanisme d'orientationInfo
- Publication number
- EP1131832A1 EP1131832A1 EP99972361A EP99972361A EP1131832A1 EP 1131832 A1 EP1131832 A1 EP 1131832A1 EP 99972361 A EP99972361 A EP 99972361A EP 99972361 A EP99972361 A EP 99972361A EP 1131832 A1 EP1131832 A1 EP 1131832A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- axis
- positioner
- detector
- moving part
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
- H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
- H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
- H01H2011/0025—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts with provisions for allowing different orientation of the operating part, e.g. turning knob can be mounted in different positions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force 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
- H01H2021/287—Operating parts, e.g. handle biased to return to normal position upon removal of operating force 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 with adjustable head, e.g. the actuator head can have different positions in relation to the limit switch itself
Definitions
- the invention relates to a position detector of a moving part capable of actuating a pusher of the detector. More precisely, the invention discloses a mechanism for orienting the pusher of the detector.
- a position detector is a device intended to be actuated by a moving part, either because of the shape of its push-button, or because of the force necessary for its action.
- the position of the moving part is detected by the mechanical action that the part exerts on the pusher when it is in contact with the latter.
- Position detectors are usually fitted with microswitches combining a reliable abrupt switching system with a sealed enclosure confining around the contacts an atmosphere of neutral gas suitable for switching circuits from low level to high currents.
- the movement of the pusher by the moving part actuates the microswitch producing the closing or opening of an electrical contact signaling the presence of the moving part.
- the shape of the part of the pusher coming into contact with the moving part is adapted on the one hand, to the shape of the moving part whose position is to be detected, and on the other hand to the type of movement of the part. Indeed, according to the configuration of the mechanical system in which the detector is inserted, the angle of attack defined between the direction of movement of the moving part and the axis of the pusher, during contact of the moving part with the pusher , may be different.
- the free end of the pusher may simply be a semi-spherical surface ensuring punctual contact with the moving part.
- the free end of the pusher can be equipped with a ball that can pivot in the pusher in order to ensure frictionless contact with the mechanical part, when the latter exhibits lateral movements relative to the axis of the pusher.
- the moving part moves in a linear movement substantially perpendicular to the axis of the pusher
- the latter comprises at its free end a roller oriented in the direction of movement of the part, the roller being integral with the pusher and capable of turning around an axis of rotation perpendicular to the axis of the pusher.
- FIG. 1a represents a partial section of a position detector 10 according to the prior art, comprising a roller 12, a guide 14 which can be rotated around a first axis XX 'of rotation, in a body 16 and a pusher 18 sliding without rotation in the guide 14 along this first axis XX '.
- the pusher comprises at its free end the roller 12 of circular cylindrical shape, which can rotate using a shaft 20 around a second axis YY 'of rotation, this second axis YY' being collinear with the axis of revolution of the roller, and perpendicular to the first axis XX '.
- a moving part P moving in a direction Dz substantially perpendicular to the first axis XX 'and to the second axis YY' comes into contact with the roller 12 at a point on its cylindrical surface located above the second axis YY ', a first force F1 is then exerted by the moving part P on the periphery of the roller.
- This first force F1 transmitted to the pusher 18 via the shaft 20 produces a component force F2 in the direction of the first axis XX '.
- This component F2 slides the pusher 18 in the guide 14, and the roller 12 in two guide grooves 22 of the guide 14, located on either side of the first axis XX '.
- a return spring 28 is compressed during displacement of the pusher towards the interior of the body.
- the body 16 of the position detector is fixed to a frame (not shown in Figure 1 a) thus being immobilized in position relative to the direction of movement of the moving part.
- the roller 12 must be able to be oriented and maintained in an angular position around the first axis XX 'so that the second axis YY', around which the roller rotates, is substantially perpendicular to the direction Dz of the movement of the moving part whose position is to be detected.
- the orientation of the roller in the direction of movement of the moving part ensures optimal rolling of the roller on its shaft while avoiding lateral forces during contact with the moving part.
- the guide 14 has at its lower part position grooves 30 distributed at its periphery at an angular pitch ⁇ around the first axis XX '.
- the detector comprises a positioner 32 located at the upper part of the body 16, fixed in rotation in the body of the detector, being in the form of a washer comprising a lug 34 intended to penetrate one of the position grooves 30.
- the body has a thread 35 on its outer cylindrical surface making it possible to screw a nut 36 making the guide 14 and the positioner 34 integral with the body 16 by tightening.
- Figure 1b shows a perspective view of the guide 14 showing the position grooves 30 distributed around the periphery of the guide at an angular pitch ⁇ of 45 degrees.
- An angular position ⁇ of the guide grooves 22 and therefore that of the roller 12 sliding in these grooves relative to a reference axis ZZ 'of the detector passing through the first axis XX' and through the middle of the lug 34 of the positioner 32 will therefore be determined by the choice of one of the position grooves 30, comprising the lug 34.
- the drawing in FIG. 1c shows a simplified top view along AA ′ of the detector, for an angular positioning ⁇ substantially equal to 90 degrees of the guide grooves 22 relative to the reference axis ZZ '. In this configuration, the second axis YY 'of the roller 12 shown in dotted lines in FIG. 1c, will have rotated by the angle ⁇ equal to 90 degrees relative to its position in FIG. 1a.
- FIG. 2a shows a principle view of a position detector 40 according to the prior art showing another mechanism for angular positioning of a pusher 42 relative to a fixed body 44 of the detector.
- the position detector 40 comprises, as in the case of the detector of FIG. 1a, a guide 46 which can be rotated around the first axis XX 'in the body 44, the pusher 42 sliding without rotation in the guide 46 along this first axis XX '.
- the guide 46 includes first holes 48 distributed radially along the angular pitch ⁇ around the first axis XX ', the axes of the holes being located in the same plane perpendicular to the first axis XX', each of the holes 48 being able to be placed in alignment with a second hole 50 opening at the periphery of the body 44.
- Figure 2b shows the collar 52 having in its central part a small rod 54 which can be inserted in the second hole 50 of the body and in one of the first holes 48 of the guide located in the extension of the first. The choice of one of the second holes 48 held in the extension of the first hole by the rod 54 ensures an angular positioning ⁇ of the guide relative to the body of the detector.
- the invention proposes to overcome the drawbacks of the prior art by proposing a position detector of a moving part comprising: - A guide which can be rotated in a body around a first axis XX 'of rotation and a pusher sliding without rotation in the guide along this axis XX';
- a positioner ensuring a locking in rotation of the guide in the body around the first axis of rotation, in a determined angular position, characterized in that the positioner is fixed in a non-removable manner in the body and in that it comprises, several tongues distributed regularly around the guide and capable of penetrating into a position groove to block the guide, that is to say several position grooves into which a tongue can penetrate to block the guide.
- the tab or tabs are able to be folded to allow the introduction of at least one tab into a position groove of the guide, ensuring the rotation blocking of the guide in the body .
- the positioner comprises several tongues, two of these tongues being inserted by folding respectively into two grooves for positioning the guide, thereby blocking the rotation of the guide in the body.
- the positioner comprises a single foldable tongue and the guide several position grooves, the angular position of the guide being determined by the choice of one of the position grooves comprising the single folded tongue.
- FIG. 3a and 3b respectively represent a perspective view and a sectional view of a position detector according to the invention
- FIG. 3c shows a perspective view of the detector guide of Figure 3a, according to the invention
- - Figure 3d shows a simplified top view of the detector of Figure 3a, according to the invention.
- Figure 3a shows a perspective view of a position detector 60 according to the invention.
- the detector comprises a guide 62 which can be rotated around the first axis XX 'in a body 64 and a pusher 66 sliding without rotation in the guide 62 along the first axis XX'.
- the free end of the pusher leaving the guide comprises the roller 12 which can rotate around the shaft 20 of the second axis YY ', perpendicular to the first axis XX'.
- FIG. 3b shows a sectional view of the position detector of FIG. 3a, along a plane passing through the first axis XX 'perpendicular to the second axis YY' of the roller 12.
- the guide 62 of circular cylindrical shape has an upper part 68 and a lower part 70, the upper part being of a smaller diameter than the lower part which penetrates into a first recess 72 of the body 64 of the detector
- the first recess 72 of circular cylindrical shape, coaxial with the first axis XX ', opens on one side by one end 74 of the body 64 located on the side of the free end of the pusher and on the other side on a second recess 76 coaxial with the first, of the same shape, having a diameter slightly smaller than that of the first recess thus creating a circular bearing 78 on which a washer 80 rests.
- the second recess 76 opens onto a third recess 82, leaving passage to a lower part 84 of the pusher 66, sliding inside the body 64.
- the lower part 70 of the guide is applied by a base surface 86 perpendicular to its axis of revolution, against the washer 80, keeping the guide in longitudinal position along the first axis XX ', in the body of the detector.
- a washer-shaped positioner 88 has an outer edge 90 and an inner edge 92.
- the positioner is crimped by its outer edge 90 into the body of the detector, near its end 74, coaxially with the first axis XX '.
- the positioner 88 is crimped in the body 64 of the detector so as to enclose the cylindrical lower part 70 of the guide between said positioner resting on a circular surface 94 resulting from the intersection of the upper part 68 and the lower part 70 of the guide, and the washer 80.
- the guide is thus held longitudinally along the first axis XX ', in a non-removable manner in the body of the detector, between the positioner 88 and the washer 80.
- the positioner In addition to the longitudinal holding function, of the guide in the detector body, the positioner provides a second angular positioning function in the detector body around the first axis XX '.
- the positioner 88 comprises on the one hand, on the side of its outer edge 90, notches 96 in order to make it immovable in rotation once crimped in the body 64, and on the other hand, on the side of its edge inside 92, tongues 98, regularly distributed at an angular pitch ⁇ around the first axis XX ', the faces of the tongues being parallel to the cylindrical surface of the guide.
- the sliding of the pusher 66 in the guide 62 takes place without rotation.
- the second axis YY ′ of the roller 12 is held in the same direction during the sliding of the plunger, the roller 12 sliding on the side of the upper part 68 of the guide, in two symmetrical guide grooves 100 located on either side other of the first axis XX '.
- the two guide grooves 100 continue towards the lower part 70 of the guide 62, up to the circular surface 94, in the form of two position grooves 102, narrower than the guide grooves, in each of which one of the tabs 98 of the positioner 88 after folding.
- FIG. 3c shows a perspective view of the guide 62 comprising the two position grooves 102.
- FIG. 3b shows two folded tongues 104 almost horizontally, among the tongues 98, on either side of the first axis XX '.
- the folded tabs 104 respectively entering one and the other of the two position grooves 102, in order to block the guide 62 in rotation in the body 64 of the detector.
- the choice of two folded tongues 104 on either side of the first axis XX determines the angular position of the guide relative to a reference direction of the body fixed on a frame and therefore that of the roller 12 relative to this direction of reference.
- the guide must be oriented so that the two position grooves 102 are positioned opposite the two opposite tabs chosen to be folded.
- the positioner 88 has eight tongues distributed at an angular pitch ⁇ equal to 45 degrees. The positioner can therefore be oriented in the body according to an angular increment of 45 degrees.
- the angular position ⁇ of the guide grooves 100 and consequently that of the roller 12 sliding in these grooves, relative to the body of the detector, will be determined by the choice of the two opposite tongues to be folded in the two position grooves 102.
- the drawing of Figure 3d shows a simplified top view along BB 'of the position detector 60, showing the position of the roller 12 relative to a reference axis W passing through the first axis XX' and the middle of a locking groove 106 produced in the detector body parallel to the first axis XX '.
- the position detector is fixed relative to the direction of movement of the moving part by its mounting on a frame 108.
- the body of the detector comprises on its circular cylindrical surface, a thread 110 and the locking groove 106 parallel to the first axis XX '.
- a washer 112 in position surrounding the body of the detector has on the side of its inner edge an internal recess 114, penetrating into the locking groove 106 and an external recess 116, intended to be introduced into a cavity 118 of the frame 108.
- Two lock washers can be interposed between the tightening nuts 120 and 122 and the frame 108, in order to make the fixing of the detector more reliable.
- the production of the positioner is not limited to the example described and other steps can be chosen within the limits of the possibilities of production of the positioner and the guide. For example, a step of 30 degrees leads to the production of a positioner comprising twelve tabs distributed regularly.
- the positioner 88 will be made of a material allowing the folding, almost horizontally and the unfolding in the vertical initial position, of the tongues, so as to be able to change a large number of times, the angular position of the roller.
- the positioner can be made of stainless steel.
- the positioner 88 and the guide 62 are not limiting to the embodiments described.
- the positioner has several tongues and the guide a single position groove 102, one of the folded tongues penetrating into the single position groove 102, which allows angular steps ⁇ not giving rise to necessarily place two opposite tongues on either side of the first axis XX '.
- a scraper seal 124 located in the lower part of the guide in an internal circular surface 126 of said guide, is held in position in the guide by the washer 80.
- An O-ring seal 128 is placed in the second recess 76.
- the seal scraper 124 and the seal 128 enclose the pusher 66, allowing its sliding in the guide and in the body of the detector while ensuring the sealing of the interior of the body of the detector with respect to the external environment.
- the movable part comprises a slot whose position it is to detect the position, for this purpose, the free end of the pusher leaving the guide, comprises a blade secured to the pusher .
- the blade must be able to be oriented and in this application, the blade must be oriented in the direction of the length of the slot of the moving part, so that it can penetrate into the slot of the part. mobile on the go.
- the position detector according to the invention is perfectly suited to this type of application.
- the position detector according to the invention has many advantages compared to the position detectors of the prior art, namely: - a reduced size by the disappearance of the positioner locking systems, for example the locking nuts;
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9814481 | 1998-11-18 | ||
FR9814481A FR2785985B1 (fr) | 1998-11-18 | 1998-11-18 | Detecteur de position avec mecanisme d'orientation |
PCT/FR1999/002807 WO2000030136A1 (fr) | 1998-11-18 | 1999-11-16 | Detecteur de position avec mecanisme d'orientation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1131832A1 true EP1131832A1 (fr) | 2001-09-12 |
EP1131832B1 EP1131832B1 (fr) | 2002-10-02 |
Family
ID=9532862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99972361A Expired - Lifetime EP1131832B1 (fr) | 1998-11-18 | 1999-11-16 | Detecteur de position avec mecanisme d'orientation |
Country Status (5)
Country | Link |
---|---|
US (1) | US6518522B1 (fr) |
EP (1) | EP1131832B1 (fr) |
DE (1) | DE69903338T2 (fr) |
FR (1) | FR2785985B1 (fr) |
WO (1) | WO2000030136A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU729236B2 (en) * | 1997-09-09 | 2001-01-25 | Patrick Joseph Byrne | Rotary mechanism limit sensing |
FR2800506B1 (fr) * | 1999-10-29 | 2002-01-04 | Crouzet Automatismes | Dispositif d'amplification du deplacement d'un bouton de manoeuvre d'un interrupteur |
FR2830981B1 (fr) * | 2001-10-15 | 2004-10-15 | Schneider Electric Ind Sa | Interrupteur, notamment de position, a tete orientable |
EP1870914A2 (fr) * | 2006-06-22 | 2007-12-26 | ZIMM Maschinenelemente GmbH + Co | Interrupteur de fin de course doté d'un élément de commutation |
JP6005991B2 (ja) * | 2012-05-18 | 2016-10-12 | 株式会社ヴァレオジャパン | 密閉型スイッチ及び密閉型スイッチの内圧減圧方法 |
DE102013019597A1 (de) * | 2013-11-25 | 2015-05-28 | K.A. Schmersal Holding Gmbh & Co. Kg | Positionsschalter |
DE102014109072B4 (de) | 2014-06-27 | 2016-06-30 | Bernstein Ag | Elektrische Schalteinrichtung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275764A (en) * | 1964-06-05 | 1966-09-27 | Square D Co | Electric limit switch having a diagonally divided housing, a detachable actuator, and mechanisms for causing selected operation of a push button snap switch |
CA1236506A (fr) * | 1983-01-12 | 1988-05-10 | Norio Iwakiri | Interrupteur de fin de course |
JP3036052B2 (ja) * | 1990-11-01 | 2000-04-24 | オムロン株式会社 | リミツトスイツチ |
FR2748151B1 (fr) | 1996-04-30 | 1998-07-10 | Crouzet Automatismes | Systeme de commande manuelle d'un organe de commutation electrique |
FR2755533B1 (fr) * | 1996-11-04 | 1998-12-24 | Schneider Electric Sa | Interrupteur de securite a tete pivotante |
DE29711163U1 (de) * | 1997-06-26 | 1997-08-21 | Hans Bernstein Spezialfabrik für Schaltkontakte GmbH & Co, 32457 Porta Westfalica | Sicherheitsschalter |
-
1998
- 1998-11-18 FR FR9814481A patent/FR2785985B1/fr not_active Expired - Fee Related
-
1999
- 1999-11-16 DE DE69903338T patent/DE69903338T2/de not_active Expired - Lifetime
- 1999-11-16 US US09/831,381 patent/US6518522B1/en not_active Expired - Lifetime
- 1999-11-16 WO PCT/FR1999/002807 patent/WO2000030136A1/fr active IP Right Grant
- 1999-11-16 EP EP99972361A patent/EP1131832B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0030136A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6518522B1 (en) | 2003-02-11 |
DE69903338T2 (de) | 2003-07-31 |
FR2785985B1 (fr) | 2001-02-23 |
WO2000030136A1 (fr) | 2000-05-25 |
DE69903338D1 (de) | 2002-11-07 |
FR2785985A1 (fr) | 2000-05-19 |
EP1131832B1 (fr) | 2002-10-02 |
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