[go: up one dir, main page]

WO1997025539A1 - Circlip-type shut-off device - Google Patents

Circlip-type shut-off device Download PDF

Info

Publication number
WO1997025539A1
WO1997025539A1 PCT/CH1996/000467 CH9600467W WO9725539A1 WO 1997025539 A1 WO1997025539 A1 WO 1997025539A1 CH 9600467 W CH9600467 W CH 9600467W WO 9725539 A1 WO9725539 A1 WO 9725539A1
Authority
WO
WIPO (PCT)
Prior art keywords
circlip
rod
transverse part
sectional area
stop
Prior art date
Application number
PCT/CH1996/000467
Other languages
French (fr)
Inventor
Maurice Petignat
Original Assignee
Etablissements Sarran S.A.
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 Etablissements Sarran S.A. filed Critical Etablissements Sarran S.A.
Priority to AU11373/97A priority Critical patent/AU1137397A/en
Publication of WO1997025539A1 publication Critical patent/WO1997025539A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F16B21/186—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action

Definitions

  • the subject of the present invention is a stop member of the so-called "circlip” type, consisting of a stirrup-shaped part, having two branches connected by a transverse part, fixing on a rod which it overlaps like of a jumper in s 1 engaging in an annular groove of said rod.
  • Such stop devices are known. They generally have, at the ends of their two branches, a lobe intended to engage in the annular groove of the rod on which they are mounted and, in the middle of their central part, a third lobe also engaging in said throat.
  • stop members lies in the fact that the middle of their transverse part, which should be shaped so as to be easily deformed, has a cross-sectional area greater than that of the rest of said transverse part, due to the presence of the central lobe, which makes the deformation of the circlip awkward, during its installation and its extraction and causes the risk that one or the other of the lateral parts of its central part will break during said deformation .
  • the object of the present invention is to eliminate this drawback.
  • FIG. 1 is a plan view of a known circlip, as described above, and
  • Fig. 2 is a plan view of the circlip which is the subject of the present invention.
  • Cirlip shown in fig. 1, designated by 1 has the general shape of a horseshoe, the two branches of which, designated by la_, each have an inner lobe 1b at their end.
  • Circlip 1 has a third lobe, designated by, located in the middle of its transverse part, itself designated by ld.
  • the center C being located at- beyond the center C with respect to the transverse part 6c, between the lobes 6b, the circlip is off-center with respect to the rod 8 and its middle part engages in the groove 7 without the circlip having to present a lobe for this purpose as in the case of circlip 1 in fig. 1.
  • the radius of the inner edge of the transverse part 6 £ of the circlip is substantially equal to the radius of the bottom of the groove 7 of the rod 8.
  • the cross-sectional area of the middle of the transverse part 6 £ of the circlip, in line with the axis designated by 9 in FIG. 2 is substantially the same as the cross-sectional area of all the rest of the transverse part 6ç_ of the circlip.
  • it deforms elastically much more easily, when it is put in place on the rod 8 or when it is extracted than is the case with the circlip 1 in FIG. 1.
  • the assembly and disassembly of the circlip easier, but the risk of it breaking is considerably reduced.
  • the shape of the circlip which is the subject of the invention may be different from that of the circlip shown in FIG. 2 provided that in the middle of its cross-section its cross-sectional area is at most equal to the average cross-sectional area of said cross-section.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

The transverse portion (6c) of the circlip (6) is an arc of a circle whose centre (C) is situated beyond the centre (C') of the rod (8) on which the circlip is fixed. As a result, the middle section of this transverse portion (6c) can be fixed in the groove (7) of the rod (8) without the transverse portion (6c) having to incorporate a lobe for that purpose. Accordingly, the surface area of the middle section of the transverse portion (6c) aligned with the axis (9) is equivalent to the average surface area of the said transverse portion (6c), which facilitates the deformation of the circlip occurring when the latter is fixed to the rod (8) or is removed from it.

Description

Organe d'arrêt du type dit "circlip' Locking device of the so-called "circlip" type
La présente invention a pour objet un organe d'arrêt du type dit "circlip", constitué par une pièce en forme d'étrier, présentant deux branches reliées par une partie transversale, se fixant sur une tige qu'il chevauche à l'instar d'un cavalier en s1engageant dans une gorge annulaire de ladite tige.The subject of the present invention is a stop member of the so-called "circlip" type, consisting of a stirrup-shaped part, having two branches connected by a transverse part, fixing on a rod which it overlaps like of a jumper in s 1 engaging in an annular groove of said rod.
De tels organes d'arrêt sont connus. Ils présentent, le plus généralement, aux extrémités de leurs deux branches, un lobe destiné à s'engager dans la gorge annulaire de la tige sur laquelle ils se montent et, au milieu de leur partie centrale, un troisième lobe s 'engageant également dans ladite gorge. Such stop devices are known. They generally have, at the ends of their two branches, a lobe intended to engage in the annular groove of the rod on which they are mounted and, in the middle of their central part, a third lobe also engaging in said throat.
L'inconvénient de tels organes d'arrêt réside dans le fait que le milieu de leur partie transversale, qui devrait être conformé de façon à se déformer aisément, présente une surface de section supérieure à celle du reste de ladite partie transversale, en raison de la présence du lobe central, ce qui rend la déformation du circlip malaisée, lors de sa mise en place et de son extraction et provoque le risque que l'une ou l'autre des parties latérales de sa partie centrale se brise lors de ladite déformation.The disadvantage of such stop members lies in the fact that the middle of their transverse part, which should be shaped so as to be easily deformed, has a cross-sectional area greater than that of the rest of said transverse part, due to the presence of the central lobe, which makes the deformation of the circlip awkward, during its installation and its extraction and causes the risk that one or the other of the lateral parts of its central part will break during said deformation .
Le but de la présente invention est d'éliminer cet inconvénient.The object of the present invention is to eliminate this drawback.
Ce but est atteint grâce aux moyens définis dans la revendication 1.This object is achieved by the means defined in claim 1.
Le dessin représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention. La fig. 1 est une vue en plan d'un circlip connu, tel que décrit ci-dessus, etThe drawing represents, by way of example, an embodiment of the subject of the invention. Fig. 1 is a plan view of a known circlip, as described above, and
La fig. 2 est une vue en plan du circlip objet de la présente invention.Fig. 2 is a plan view of the circlip which is the subject of the present invention.
Le circlip représenté à la fig. 1, désigné par 1, a la forme générale d'un fer à cheval dont les deux branches, désignées par la_, présentent, à leur extrémité, chacun un lobe intérieur lb. Le circlip 1 présente un troisième lobe, désigné par le, situé au milieu de sa partie transversale, elle-même désignée par ld.The circlip shown in fig. 1, designated by 1, has the general shape of a horseshoe, the two branches of which, designated by la_, each have an inner lobe 1b at their end. Circlip 1 has a third lobe, designated by, located in the middle of its transverse part, itself designated by ld.
Lorsque le circlip est engagé sur une tige telle que la tige 2 représentée en coupe à la fig. 1, ses lobes lb et l£ s'engagent dans une gorge annulaire 3 que présente ladite tige. Le circlip se maintient ainsi par sa propre élasticité sur la tige 2 sur la¬ quelle il constitue un organe d'arrêt. L'inconvénient de cette disposition réside dans le fait que le milieu de la partie transver¬ sale ld du circlip, au droit de l'axe 4 de la fig. 1, présente une surface de section supérieure à la surface de section du reste de ladite partie transversale au droit, par exemple, de l'axe 5 de la fig. 1. Il en résulte que la force qu'il faut appliquer aux branches la du circlip pour l'ouvrir lors de sa mise en place sur la tige 2 ou de son extraction est supérieure à celle qui serait nécessaire si la partie médiane de la partie transversale ld du circlip ne présentait pas cet accroissement de surface de section dû à la présence du lobe lç_.When the circlip is engaged on a rod such as the rod 2 shown in section in FIG. 1, its lobes 1b and 1b engage in an annular groove 3 which said rod has. The circlip is thus maintained by its own elasticity on the rod 2 on which it constitutes a stop member. The disadvantage of this arrangement lies in the fact that the middle of the transver¬ dirty part ld of the circlip, in line with the axis 4 of FIG. 1, has a cross-sectional area greater than the cross-sectional area of the remainder of said transverse part in line with, for example, the axis 5 of FIG. 1. It follows that the force which must be applied to the branches of the circlip to open it when it is put in place on the rod 2 or when it is extracted is greater than that which would be necessary if the middle part of the part transverse ld of the circlip did not exhibit this increase in cross-sectional area due to the presence of the lobe lç_.
Cet inconvénient ne se retrouve pas dans le circlip représenté à la fig. 2, désigné par 6, qui a la forme générale d'un étrier dont les deux branches, dé¬ signées par 6ÇÎ, se terminent chacune par un lobe 6b destiné à s'engager dans une gorge annulaire 7 que pré¬ sente une tige 8 représentée en coupe à la fig. 2. Quant à la partie transversale de l'étrier, désignée par 6ç_, de section constante, elle est constituée par un arc de cercle ayant son centre C qui ne coïncide pas avec le centre C de la tige 8. Le centre C étant situé au-delà du centre C par rapport à la partie transversale 6c, entre les lobes 6b, le circlip est décentré par rapport à la tige 8 et sa partie médiane s'engage dans la gorge 7 sans que le circlip ait à présenter de lobe à cet effet comme c'est le cas du circlip 1 de la fig. 1.This drawback is not found in the circlip shown in fig. 2, designated by 6, which has the general shape of a stirrup, the two branches of which, designated by 6 Ç , each end with a lobe 6b intended to engage in an annular groove 7 which is presented by a rod 8 shown in section in FIG. 2. As for the transverse part of the stirrup, designated by 6c, of constant section, it is constituted by an arc of a circle having its center C which does not coincide with the center C of the rod 8. The center C being located at- beyond the center C with respect to the transverse part 6c, between the lobes 6b, the circlip is off-center with respect to the rod 8 and its middle part engages in the groove 7 without the circlip having to present a lobe for this purpose as in the case of circlip 1 in fig. 1.
Le rayon du bord intérieur de la partie transversale 6£ du circlip est sensiblement égal au rayon du fond de la gorge 7 de la tige 8.The radius of the inner edge of the transverse part 6 £ of the circlip is substantially equal to the radius of the bottom of the groove 7 of the rod 8.
De ce fait, la surface de section du milieu de la partie transversale 6£ du circlip, au droit de l'axe désigné par 9 à la fig. 2, est sensi¬ blement la même que la surface de section de tout le reste de la partie transversale 6ç_ du circlip. En con- séquence, celui-ci se déforme élastiquement beaucoup plus aisément, lors de sa mise en place sur la tige 8 ou de son extraction que ce n'est le cas du circlip 1 de la fig. 1. Non seulement le montage et le démontage du circlip sont plus faciles, mais le risque que celui- ci vienne à se casser est considérablement réduit.Therefore, the cross-sectional area of the middle of the transverse part 6 £ of the circlip, in line with the axis designated by 9 in FIG. 2, is substantially the same as the cross-sectional area of all the rest of the transverse part 6ç_ of the circlip. In con- sequence, it deforms elastically much more easily, when it is put in place on the rod 8 or when it is extracted than is the case with the circlip 1 in FIG. 1. Not only is the assembly and disassembly of the circlip easier, but the risk of it breaking is considerably reduced.
La forme du circlip objet de l'invention pourra être différente de celle du circlip représenté à la fig. 2 pour autant qu'au milieu de sa partie transversale sa surface de section soit au plus égale à la surface de section moyenne de ladite partie transversale . The shape of the circlip which is the subject of the invention may be different from that of the circlip shown in FIG. 2 provided that in the middle of its cross-section its cross-sectional area is at most equal to the average cross-sectional area of said cross-section.

Claims

R E V E N D I C A T I O N S
1. Organe d'arrêt du type dit "circlip", constitué par une pièce en forme d'étrier, présentant deux branches reliées par une partie transversale, se fixant sur une tige qu'il chevauche à l'instar d'un cavalier en s'engageant dans une gorge annulaire de ladite tige, caractérisé par le fait que ladite partie transversale est de section sensiblement constante.1. Stop member of the so-called "circlip" type, consisting of a stirrup-shaped part, having two branches connected by a transverse part, fixing on a rod which it straddles like a rider in engaging in an annular groove of said rod, characterized in that said transverse part is of substantially constant section.
2. Organe d'arrêt suivant la revendication 1, caractérisé par le fait que le milieu de sa partie trans¬ versale présente une surface de section au plus égale à la surface de section moyenne de ladite partie trans¬ versale . 2. Stop member according to claim 1, characterized in that the middle of its transverse part has a cross-sectional area at most equal to the average cross-sectional area of said transverse part.
3. Organe d'arrêt suivant la revendication 1, caractérisé par le fait que sa partie transversale a la forme d'un arc de cercle dont le centre est situé sensi¬ blement entre les extrémités de ses branches de telle manière que ledit organe d'arrêt soit décentré par rap¬ port à la tige sur laquelle il s'engage et que le milieu de sa partie transversale s'engage dans la gorge de ladite tige.3. Stop member according to claim 1, characterized in that its transverse part has the shape of an arc of a circle whose center is located sensi¬ ble between the ends of its branches so that said member stop is off-center relative to the rod on which it engages and that the middle of its transverse part engages in the groove of said rod.
4. Organe d'arrêt suivant la revendication 3, caractérisé par le fait que le rayon du bord intérieur de sa partie transversale, en arc de cercle, est sensible¬ ment égal au diamètre du fond de la gorge de la tige dans laquelle ledit organe d'arrêt est destiné à s'en¬ gager. 4. Stop member according to claim 3, characterized in that the radius of the inner edge of its transverse part, in an arc, is substantially equal to the diameter of the bottom of the groove of the rod in which said member stop is intended to engage.
PCT/CH1996/000467 1996-01-10 1996-12-31 Circlip-type shut-off device WO1997025539A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11373/97A AU1137397A (en) 1996-01-10 1996-12-31 Circlip-type shut-off device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH66/96 1996-01-10
CH6696 1996-01-10

Publications (1)

Publication Number Publication Date
WO1997025539A1 true WO1997025539A1 (en) 1997-07-17

Family

ID=4178527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1996/000467 WO1997025539A1 (en) 1996-01-10 1996-12-31 Circlip-type shut-off device

Country Status (2)

Country Link
AU (1) AU1137397A (en)
WO (1) WO1997025539A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2426033A (en) * 2005-05-13 2006-11-15 Chubu Bearing Kabushikikaisha Shaft retaining ring
USRE41296E1 (en) * 2001-11-28 2010-05-04 Bobby Hu Retainer ring for securely retaining a first object to a second object
CN102852901A (en) * 2012-09-17 2013-01-02 李理 Spacing clamp ring of hydraulic device
CN104533914A (en) * 2014-11-11 2015-04-22 中国北方发动机研究所(天津) Elastic bearing retainer ring applicable to internal combustion engine
WO2022194537A1 (en) * 2021-03-15 2022-09-22 Zf Cv Systems Europe Bv Device with a sensor and a circlip for indicating wear of a brake lining of a disc brake, and circlip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR918406A (en) * 1944-12-30 1947-02-07 Waldes Kohinoor Inc Open fret
US2491306A (en) * 1945-11-21 1949-12-13 Waldes Kohinoor Inc Retaining ring
EP0386617A2 (en) * 1989-03-08 1990-09-12 Chubu Bearing Kabushiki Kaisha E-shaped retainer ring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR918406A (en) * 1944-12-30 1947-02-07 Waldes Kohinoor Inc Open fret
US2491306A (en) * 1945-11-21 1949-12-13 Waldes Kohinoor Inc Retaining ring
EP0386617A2 (en) * 1989-03-08 1990-09-12 Chubu Bearing Kabushiki Kaisha E-shaped retainer ring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE41296E1 (en) * 2001-11-28 2010-05-04 Bobby Hu Retainer ring for securely retaining a first object to a second object
GB2426033A (en) * 2005-05-13 2006-11-15 Chubu Bearing Kabushikikaisha Shaft retaining ring
CN102852901A (en) * 2012-09-17 2013-01-02 李理 Spacing clamp ring of hydraulic device
CN104533914A (en) * 2014-11-11 2015-04-22 中国北方发动机研究所(天津) Elastic bearing retainer ring applicable to internal combustion engine
WO2022194537A1 (en) * 2021-03-15 2022-09-22 Zf Cv Systems Europe Bv Device with a sensor and a circlip for indicating wear of a brake lining of a disc brake, and circlip

Also Published As

Publication number Publication date
AU1137397A (en) 1997-08-01

Similar Documents

Publication Publication Date Title
EP1780427B1 (en) Not drastic anchorage disk
EP2751011B1 (en) Device for handling a load
WO1997025539A1 (en) Circlip-type shut-off device
EP0288366A1 (en) Device for attaching a towing hitch to a motor vehicle
EP2430321B1 (en) Device for attaching a first part to a second part which is attached to a third part and the assembly of three parts, in particular, of a motor vehicle
EP3095684B1 (en) Derailleur tab
FR2681918A1 (en) DEVICE FOR THE QUICK ASSEMBLY AND DISASSEMBLY OF TWO PARTS ON THE OTHER.
EP2927517A1 (en) Cycle comprising a quick-release saddle adjusting mechanism and quick-release saddle adjusting mechanism for such a cycle
EP0287446A1 (en) Device for quick coupling a plug with a receiving part
EP0424204B1 (en) Coupling between handle and actuating bar of vehicle door lock
EP0539253B1 (en) Disc brake
EP0930175B1 (en) Screw for fastening a vehicle wheel of light alloy or sheet metal
FR2703963A1 (en) Pedal joint for wiper device.
FR2549184A1 (en) Swivel hook with shanked ring including an elastic head
FR2913082A1 (en) Speed control cable's sheath stopping plate for gearbox, has clamp comprising fixed pins projecting from surface of clamp, where pins are placed at proximity of support edge of clamp for ensuring immobilization of end fitting on cable
EP2300243B1 (en) Device for attaching a roller bearing to a shaft
FR2503050A1 (en) DEVICE FOR FIXING A SECOND WHEEL TO FORM A DOUBLE WHEEL, PARTICULARLY ON A TRACTOR
EP0011008B1 (en) Screw-base lamp socket having braking means to oppose unscrewing of the lamp
EP1059466B1 (en) Engine mount with non-elastic wire movement limiter
FR2580237A1 (en) Improved hitching device for tractors and semi-trailers
FR2859162A1 (en) DEVICE FOR LOCKING THE SEAT ROD
EP0890775B1 (en) Locking device for connecting pipe members and use of such a connection
EP0930176B1 (en) Motor vehicle wheel, fixed with screws with flat or conical surface
FR2503123A1 (en) OIL LOADING STATION AT SEA
FR2882967A3 (en) Washer for vehicle components has round washer body formed with expansion and insertion portions of different diameters and placed into assembly hole of vehicle component to change pitch center diameter of component

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AU BA BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU JP KE KG KP KR KZ LC LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SI SK TJ TT UA US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 97506977

Format of ref document f/p: F

NENP Non-entry into the national phase

Ref country code: CA

122 Ep: pct application non-entry in european phase