EP1229421A1 - Dispositif d'arrêt en rotation d'une roue dentée - Google Patents
Dispositif d'arrêt en rotation d'une roue dentée Download PDFInfo
- Publication number
- EP1229421A1 EP1229421A1 EP02290185A EP02290185A EP1229421A1 EP 1229421 A1 EP1229421 A1 EP 1229421A1 EP 02290185 A EP02290185 A EP 02290185A EP 02290185 A EP02290185 A EP 02290185A EP 1229421 A1 EP1229421 A1 EP 1229421A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- toothed wheel
- rotation
- finger
- branch
- 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
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/58—Rests or guides for relevant parts of the operator's body
- G05G1/60—Foot rests or foot guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
- G05G5/20—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a quadrant, rod, or the like carried by the member
- G05G5/24—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a quadrant, rod, or the like carried by the member by positive interengagement, e.g. by a pawl
Definitions
- the invention relates to a device for stopping the rotation of a toothed wheel.
- the device for stopping the rotating gear consists of a pawl removable inserted into the gear wheel housing, this pawl comprising teeth that cooperate with the teeth of the gear wheel to stop this last in rotation.
- the ratchet is provided with a lug carried by an elastic support deformable for engaging the lug in a notch, in view immobilization of the pawl on the housing.
- the device is easily maneuverable using an inserted tool in the access channel along the side of the accommodation from which the operating member is projecting. By removing the tool, the device resumes its initial position and the finger is pulled back towards the toothed wheel.
- the return means comprises a flexible blade disposed in the housing to flex in a plane normal to the axis of rotation of the toothed wheel, the blade having a linked anchoring end in the housing, the operating member being formed by a section of the blade.
- the blade comprises two rectilinear branches substantially at right angles connected by the section forming the operating member, one of the branches extending to the toothed wheel in a radial direction to constitute the finger, the other branch forming the means of finger recall.
- a housing 1 comprises in known manner a bottom 2 comprising a housing 3 of a toothed wheel 4 rotatably mounted on the case 1 around an axis of rotation X perpendicular to the bottom 2.
- the bottom 2 of the box 1 is normally attached to a mechanical element not shown and a case 101 is attached to case 1 preventing access to the toothed wheel 4 according to a radial direction thereof.
- a channel access 20 extends between the two housings parallel to the axis X between the sides 17 and 117 opposite boxes 1 and 101.
- the housing 1 is equipped with an angular stop device of the toothed wheel 4, here a flexible blade 5 mounted on the housing 1 opposite of the toothed wheel 4 to bend in a plane normal to the X axis.
- the blade flexible 5 has a bent anchoring end 6 engaged in a groove 7 of corresponding shape of the bottom 2.
- the anchoring end 6 is linked to a first branch 8 of the blade 5 housed in a groove 9 in the bottom 2 having a width sufficient to allow bending of the branch 8.
- the branch 8 is linked to a section 10 projecting from the side 17 of the housing 1, so that the end of a tool not shown in this figure can be inserted in the access channel 20 between the side 17 and the section 10.
- the section 10 is also connected to a second branch 11 substantially perpendicular to the branch 8.
- the branch 11 has a setback 18 at its junction with the section 10 so as to increase the space available between the section 10 and the housing 1 for the introduction of the end of a tool.
- the second branch 11 extends towards the toothed wheel 4 in a radial direction in a groove 12 in the bottom 2 opening into the housing 3.
- the branch 11 has a free end here shown engaged in a hollow between two teeth of the gear 4.
- the slope of the sides of the teeth of the toothed wheel 4 is such that it does not not allow a radial clearance of the end 14 of the hollow in which it is engaged under the effect of a rotation of the toothed wheel 4.
- the branch 11 thus constitutes a locking finger in rotation of the toothed wheel 4.
- the groove 12 is equipped with a guide collar 13 in the vicinity of the housing 3, preventing any transverse movement of the free end 14, but not preventing a radial movement of the latter.
- the operation of the angular stop device is as follows: when we want to release the rotating gear 4, we slide a flat tool along of the housing 1 in the access channel 20, so as to introduce its visible end 15 in Figure 2 between the section 10 and the housing 1. Then we cause a spacing the section 10 relative to the housing 1 by pivoting the end 15 around an axis parallel to the X axis.
- the first branch 8 then takes an arrow f indicated in Figure 3.
- the end 14 of the branch 11 is driven by this bending substantially in a radial direction to move away from the wheel toothed 4 by an amount equal to the arrow f of the branch 8, while being guided by the guide neck 13.
- the free end 14 is then released from the hollow between two teeth of the gear 4 in which it was engaged, and the gear 4 is free to turn. It is then possible to rotate the gear wheel so known per se from document FR 2 792 679.
- the first branch 8 then acts as a return spring to gradually return the branch 11 to the wheel toothed.
- the free end 14 then again enters a hollow between two teeth of the gear wheel 4.
- the branch 8 has a direction inclined relative to the side 17, thereby increasing the length of this branch, and therefore increase its elasticity.
- This arrangement provides a sufficient deflection to bring the end 14 out of a hollow between two teeth of the wheel toothed 4.
- This arrangement allows optimal installation of the stop device, between an obviously 19 of the bottom 2 provided for the passage of a toothed sector of operation of the toothed wheel 4, and a bore 21 for an assembly stud of the case.
- the anchoring end 6 has a bent portion 16 having a direction parallel to side 17, which makes it possible to retain the blade 5 in position at against the spreading force imposed by the tool on the blade 5.
- the structure of the device according to the invention makes it possible to automate the operation of the stop device.
- the angular stop device equips an electromagnetic actuator of the type described in FR 2 792 679
- the release tool can be integrated into a bench for adjusting the actuator also comprising means for operating the toothed wheel.
- the operating member has been described in the form of a section straight 10 integrated into the flexible blade 5, it is possible to use a maneuver having any type of shape allowing the passage of an operating tool. It is also possible to produce an operating member having an oblique part with respect to the side 17 of the case, so that the simple introduction of a tool in contact with this oblique part causes the release finger 11.
- the stop device also applies to a toothed wheel installed in an interior housing of the housing to which it is possible to access through a channel made in the housing.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Braking Arrangements (AREA)
Abstract
Description
- la figure 1 est une vue de dessous partielle de deux boítiers accolés portant une roue dentée et équipés d'un dispositif d'arrêt selon l'invention ;
- la figure 2 est une vue de dessous partielle d'un boítier de la figure 1 montrant le dispositif d'arrêt avec un outil de déblocage mis en place ;
- la figure 3 est une vue de dessous partielle d'un boítier de la figure 1 montrant le dispositif d'arrêt avec l'outil en position de déblocage du dispositif.
Claims (7)
- Dispositif d'arrêt en rotation d'une roue dentée (4) montée tournante autour d'un axe de rotation (X) dans un logement (3) d'un boítier (1) et accessible par un canal d'accès (20) s'étendant sur un côté du logement (3) parallèlement à l'axe de rotation de la roue dentée (4), caractérisé en ce que le dispositif comporte un doigt (11) monté sur le boítier (1) pour être mobile radialement en regard de la roue dentée (4) à l'encontre d'un moyen de rappel (8) vers la roue dentée (4), et en ce que le doigt (11) comporte un organe de manoeuvre (10) s'étendant en saillie dans le canal d'accès (20).
- Dispositif d'arrêt en rotation selon la revendication 1, caractérisé en ce que le moyen de rappel comprend une lame flexible (5) disposée dans le boítier (1) pour fléchir dans un plan normal à l'axe de rotation (X) de la roue dentée (4), la lame (5) ayant une extrémité d'ancrage (6) liée au boítier (1), et en ce que l'organe de manoeuvre est formé par un tronçon de la lame (10).
- Dispositif d'arrêt en rotation selon la revendication 2, caractérisé en ce que la lame (5) comporte deux branches rectilignes (8,11) sensiblement à angle droit reliées par le tronçon (10) formant l'organe de manoeuvre, l'une des branches (11) s'étendant jusqu'à la roue dentée (4) selon une direction radiale pour constituer le doigt, l'autre branche (8) formant le moyen de rappel du doigt.
- Dispositif d'arrêt en rotation selon la revendication 2 ou la revendication 3, caractérisé en ce que l'extrémité d'ancrage (6) comprend une partie coudée (16) engagée dans une rainure (7) de forme correspondante du boítier (1).
- Dispositif d'arrêt en rotation selon la revendication 3 ou la revendication 4, caractérisé en ce que la branche (8) formant le moyen de rappel est inclinée par rapport au côté (17) du boítier (1) sur lequel l'organe de manoeuvre (10) est en saillie.
- Dispositif d'arrêt en rotation selon la revendication 5, caractérisé en ce qu'au moins l'une des branches (11) comporte un décrochement (18).
- Dispositif d'arrêt en rotation selon la revendication 2 ou la revendication 6, caractérisé en ce que la branche (11) formant le doigt coopère avec un organe de guidage (13) du boítier (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0101400A FR2820520B1 (fr) | 2001-02-02 | 2001-02-02 | Dispositif d'arret en rotation d'une roue dentee |
| FR0101400 | 2001-02-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1229421A1 true EP1229421A1 (fr) | 2002-08-07 |
| EP1229421B1 EP1229421B1 (fr) | 2007-12-19 |
Family
ID=8859532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02290185A Expired - Lifetime EP1229421B1 (fr) | 2001-02-02 | 2002-01-28 | Dispositif d'arrêt en rotation d'une roue dentée |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1229421B1 (fr) |
| DE (1) | DE60224124T2 (fr) |
| FR (1) | FR2820520B1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2870564A1 (fr) * | 2004-05-19 | 2005-11-25 | Peugeot Citroen Automobiles Sa | Dispositif d'actionnement de soupapes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853718A (en) * | 1957-11-15 | 1960-11-09 | Ft Products Ltd | Click-stop assembly |
| US4038508A (en) * | 1975-05-22 | 1977-07-26 | General Electric Company | Electrical switch method operating such and indexing system |
| US5214982A (en) * | 1992-03-30 | 1993-06-01 | Shieh Jin Ren | Locking device for a ratchet wheel |
| FR2792679A1 (fr) | 1999-04-23 | 2000-10-27 | Sagem | Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif |
-
2001
- 2001-02-02 FR FR0101400A patent/FR2820520B1/fr not_active Expired - Fee Related
-
2002
- 2002-01-28 EP EP02290185A patent/EP1229421B1/fr not_active Expired - Lifetime
- 2002-01-28 DE DE60224124T patent/DE60224124T2/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853718A (en) * | 1957-11-15 | 1960-11-09 | Ft Products Ltd | Click-stop assembly |
| US4038508A (en) * | 1975-05-22 | 1977-07-26 | General Electric Company | Electrical switch method operating such and indexing system |
| US5214982A (en) * | 1992-03-30 | 1993-06-01 | Shieh Jin Ren | Locking device for a ratchet wheel |
| FR2792679A1 (fr) | 1999-04-23 | 2000-10-27 | Sagem | Dispositif reglable de commande de soupapes et procede de reglage d'un tel dispositif |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2870564A1 (fr) * | 2004-05-19 | 2005-11-25 | Peugeot Citroen Automobiles Sa | Dispositif d'actionnement de soupapes |
| WO2005113946A1 (fr) * | 2004-05-19 | 2005-12-01 | Peugeot Citroen Automobiles | Dispositif d'actionnement de soupapes |
| US7654235B2 (en) | 2004-05-19 | 2010-02-02 | Peugeot Citroen Automobiles Sa | Valve actuating device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60224124T2 (de) | 2009-01-02 |
| EP1229421B1 (fr) | 2007-12-19 |
| FR2820520B1 (fr) | 2003-05-16 |
| DE60224124D1 (de) | 2008-01-31 |
| FR2820520A1 (fr) | 2002-08-09 |
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