EP0760721A1 - Method for manufacturing a thin metal part and application particularly to a bush - Google Patents

Method for manufacturing a thin metal part and application particularly to a bush

Info

Publication number
EP0760721A1
EP0760721A1 EP95923381A EP95923381A EP0760721A1 EP 0760721 A1 EP0760721 A1 EP 0760721A1 EP 95923381 A EP95923381 A EP 95923381A EP 95923381 A EP95923381 A EP 95923381A EP 0760721 A1 EP0760721 A1 EP 0760721A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
strip
recessed
bore
raised areas
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.)
Withdrawn
Application number
EP95923381A
Other languages
German (de)
French (fr)
Inventor
Yves Brenier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0760721A1 publication Critical patent/EP0760721A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like

Definitions

  • the invention relates to the technical sector of automobile accessories in particular.
  • the invention relates to a contactor-starter.
  • a starter used on automobile engines is an electric motor operating on the vehicle battery.
  • the electric motor is series excitation.
  • the armature shaft is extended by a very inclined thread screw on which a small toothed pinion can slide.
  • the armature shaft is driven in rotation, to put the pinion in gear with the teeth of a toothed ring, which has the flywheel.
  • the control of the armature is carried out by means of a contactor, constituted by a coil on which is wound, between two flanges, a copper wire. Inside the coil body is mounted a metal tube, which acts as a cushion. A plunger element, mounted in combination with the bearing, provides electrical contact for driving the launcher. The bearing is locked in translation in the body of the coil, by means of a flange.
  • this pad poses certain problems. Indeed, the latter delimits an entirely smooth internal recess, so that a seizure phenomenon of the plunger element can occur, since there are no arrangements for the exhaust of air. he may consequently result in air compression, preventing any movement of the plunger element and, consequently, the driving of the starter.
  • these pads are made of a material generally greater than 7/10 mm thick, hence a high cost of material.
  • these bearings are not elastic for their introduction into the body of the coil, so they must be machined in a very precise manner. They also require the presence of a flange for their locking in translation.
  • patent JP-A-57.154341 describes a process for obtaining a cylindrical body from a flat sheet subjected before an operation capable of forming hollow parts.
  • the flat sheet is then rolled to obtain the cylindrical body.
  • the hollow parts appear on the outside.
  • the relatively large thickness of the sheet is observed and an entirely smooth bore of the cylindrical body corresponding to the state of the art developed above with the resulting drawbacks.
  • the object of the invention is to remedy these drawbacks in a simple, safe, effective and rational manner.
  • a new manufacturing process has been designed and developed making it possible to obtain parts in particular of generally cylindrical shape, from a metal strip of very reduced thickness and, in all cases , less than 7/10 mm.
  • the problem which the invention proposes to solve is to produce a pad of very reduced thickness, having an elastic deformation capacity, being arranged for the exhaust of air, in the case of certain applications, such as those of a starter, without thereby excluding other applications in various fields.
  • a method has been designed and developed according to which:
  • the strip is subjected to a rolling operation to obtain a split cylindrical sleeve to give it a diametrical elasticity
  • the cylindrical sleeve is engaged by elasticity, inside a bore of a body and it is introduced into said sleeve , a cylindrical body with the ability to move in translation and / or in rotation, so that the recessed and raised areas delimit parts for the circulation and evacuation of air or for the deposition of a self-treatment lubricant.
  • the hollow and raised areas appear outside or inside and are obtained by an embossing operation.
  • the split cylindrical sleeve is introduced by elasticity inside a bore of a body made of material, in particular plastic.
  • Figure 1 is a plan view of the metal strip.
  • Figure 2 is a perspective view showing the rolling of the strip to obtain a split sleeve.
  • Figure 3 is a longitudinal sectional view showing the application of the pad according to the invention to a starter contact for a motor vehicle.
  • Figure 4 is, on a large scale, a sectional view transverse * along line 4.4 of Figure 3.
  • the pad is produced by rolling a metal strip (1) of reduced thickness.
  • the strip (1) has a thickness less than or equal to 7/10 mm.
  • the strip (1) is subjected, prior to the rolling operation, to an operation capable of punctually deforming the material, to form hollow (1a) and raised (1b) areas. These areas are obtained by an embossing operation and can appear inside and / or outside.
  • the strip is subjected to a rolling operation, by any known and appropriate means, to obtain a split cylindrical sleeve (1c).
  • a rolling operation by any known and appropriate means, to obtain a split cylindrical sleeve (1c).
  • the split sleeve can be introduced by elasticity, inside a bore (2a) of a body (2), made of plastic.
  • the bearing finds a particularly advantageous application, in the case of a starter contactor.
  • the sleeve (1c) is housed inside the bore (2a) of the body (2) in the form of a coil (3), between the flanges- from which is wound a coil (4), constituting the induced.
  • the winding participates in the joining of the whole of the sleeve, in combination with the hollow and raised parts (1a) and (1b) which constitute anchoring zones (FIG. 3).
  • the plunger core (P) can, under these conditions, be moved safely, without risk of seizure, the air being expelled by the channels.
  • a reduction in the range is therefore obtained, while obtaining a better coefficient of sliding, the embossing making it possible, as indicated, to evacuate the air and consequently to avoid any problem of jamming, when for example, a plunger core is introduced in the sleeve (1c).
  • the bearing implemented according to the method of the invention, can find other applications, particularly in all cases where problems of connection and air circulation can appear and more particularly, in all cases where the elements used require very precise machining.
  • the method can be implemented by producing elements other than the pads. We can cite for example, washers.
  • the invention finds an application, in all cases of parts combining a movement of rotation and translation.
  • the recessed and raised areas prove to be particularly advantageous for evacuating the air or for depositing any type of self-lubricating treatment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The process for manufacturing a reduced thickness metal part is characterized in that a reduced thickness strip is used, at least one face of the strip is subjected to an operation intended to locally deform the material in order to make depressed and raised zones (1a, 1b) delimiting anchoring portions and portions for the circulation and evacuation of air or for the deposition of a self-lubricating treatment film.

Description

Procédé de fabrication d'une pièce métallique de faible épaisseur et son application à un coussinet notamment. Method of manufacturing a thin metal part and its application to a pad in particular.
L'invention se rattache au secteur technique des accessoires pour automobile notamment.The invention relates to the technical sector of automobile accessories in particular.
Plus particulièrement mais non limitativement, l'invention concerne un contacteur-démarreur.More particularly but not limited to, the invention relates to a contactor-starter.
De manière parfaitement connue, un démarreur employé sur les moteurs automobiles, est un moteur électrique fonctionnant sur la batterie du véhicule. Généralement, le moteur électrique est à excitation série. L'arbre de l'induit se prolonge par une vis à filet très incliné sur laquelle peut coulisser un petit pignon denté. En mettant le contact d'allumage, l'arbre de l'induit est entraîné en rotation, pour mettre le pignon en prise avec la denture d'une couronne dentée, que présente le volant du moteur.As is perfectly known, a starter used on automobile engines is an electric motor operating on the vehicle battery. Generally, the electric motor is series excitation. The armature shaft is extended by a very inclined thread screw on which a small toothed pinion can slide. By switching on the ignition, the armature shaft is driven in rotation, to put the pinion in gear with the teeth of a toothed ring, which has the flywheel.
Généralement, la commande de l'induit est réalisée au moyen d'un contacteur, constitué par une bobine sur laquelle est enroulé, entre deux flasques, un fil de cuivre. A l'intérieur du corps de la bobine est monté un tube métallique, qui fait office de coussinet. Un élément plongeur, monté en combinaison avec le coussinet, permet d'assurer le contact électrique pour l'entraînement du lanceur. Le coussinet est bloqué en translation dans le corps de la bobine, au moyen d'une collerette.Generally, the control of the armature is carried out by means of a contactor, constituted by a coil on which is wound, between two flanges, a copper wire. Inside the coil body is mounted a metal tube, which acts as a cushion. A plunger element, mounted in combination with the bearing, provides electrical contact for driving the launcher. The bearing is locked in translation in the body of the coil, by means of a flange.
La conception de ce coussinet pose certains problèmes. En effet, ce dernier délimite un chambrage interne entièrement lisse, de sorte que peut se produire un phénomène de grippage de l'élément plongeur, étant donné qu'il n'y a pas d'agencements pour l'échappement de l'air. Il peut en résulter en conséquence, une compression de l'air, interdisant tout déplacement de l'élément plongeur et, par conséquent, l'entraînement du démarreur.The design of this pad poses certain problems. Indeed, the latter delimits an entirely smooth internal recess, so that a seizure phenomenon of the plunger element can occur, since there are no arrangements for the exhaust of air. he may consequently result in air compression, preventing any movement of the plunger element and, consequently, the driving of the starter.
Par ailleurs, ces coussinets sont réalisés dans une matière généralement supérieure à 7/10 de mm d'épaisseur, d'où un coût de matière important. Enfin, ces coussinets ne sont pas élastiques pour leur introduction dans le corps de la bobine, de sorte qu'ils doivent être usinés d'une manière très précise. Ils nécessitent, en outre, la présence d'une collerette, pour leur blocage en translation.Furthermore, these pads are made of a material generally greater than 7/10 mm thick, hence a high cost of material. Finally, these bearings are not elastic for their introduction into the body of the coil, so they must be machined in a very precise manner. They also require the presence of a flange for their locking in translation.
L'enseignement du brevet JP-A-57.154341 décrit un procédé pour obtenir un corps cylindrique à partir d'une feuille plane soumise préalablement à une opération apte à former des parties en creux. La feuille plane est ensuite roulée pour obtenir le corps cylindrique. Les parties en creux apparaissent à l'extérieur. On observe l'épaisseur relativement importante de la feuille et un alésage entièrement lisse du corps cylindrique correspondant à l'état de la technique développé ci- dessus avec les inconvénients en résultant.The teaching of patent JP-A-57.154341 describes a process for obtaining a cylindrical body from a flat sheet subjected before an operation capable of forming hollow parts. The flat sheet is then rolled to obtain the cylindrical body. The hollow parts appear on the outside. The relatively large thickness of the sheet is observed and an entirely smooth bore of the cylindrical body corresponding to the state of the art developed above with the resulting drawbacks.
L'invention s'est fixée pour but de remédier à ces inconvénients, de manière simple, sûre, efficace et rationnelle.The object of the invention is to remedy these drawbacks in a simple, safe, effective and rational manner.
Notamment, selon l'invention, il a été concçu et mis au point un nouveau procédé de fabrication permettant d'obtenir des pièces notamment de forme générale cylindrique, à partir d'un feuillard métallique d'épaisseur très réduite et, dans tous les cas, inférieur à 7/10 mm.In particular, according to the invention, a new manufacturing process has been designed and developed making it possible to obtain parts in particular of generally cylindrical shape, from a metal strip of very reduced thickness and, in all cases , less than 7/10 mm.
Plus particulièrement, le problème que se propose de résoudre l'invention, est de réaliser un coussinet d'épaisseur très réduite, ayant une capacité de déformation élastique, en étant agencé pour l'échappement de l'air, dans le cas de certaines applications, telles que celles d'un démarreur, sans pour cela exclure d'autres applications dans des domaines divers. Pour résoudre un tel problème il a été conçu et mis au point un procédé selon lequel :More particularly, the problem which the invention proposes to solve is to produce a pad of very reduced thickness, having an elastic deformation capacity, being arranged for the exhaust of air, in the case of certain applications, such as those of a starter, without thereby excluding other applications in various fields. To solve such a problem, a method has been designed and developed according to which:
- on prend un feuillard d'épaisseur inférieure ou égale à 7/10 de mm,- we take a strip of thickness less than or equal to 7/10 mm,
- on soumet l'une des faces au moins du feuillard, à une opération apte à déformer ponctuellement la matière pour constituer des zones en creux et en relief ,- at least one of the faces of the strip is subjected to an operation capable of temporarily deforming the material to form recessed and raised areas,
- on soumet le feuillard à une opération de roulage pour obtenir un manchon cylindrique fendu pour lui conférer une élasticité diamétrale, - on engage le manchon cylindrique par élasticité, à l'intérieur d'un alésage d'un corps et on introduit dans ledit manchon, un corps cylindrique avec capacité de déplacement en translation et/ou en rotation, de sorte que les zones en creux et en relief délimitent des parties pour la circulation et l'évacuation de l'air ou pour le dépôt d'un traitement auto- lubrifiant.- the strip is subjected to a rolling operation to obtain a split cylindrical sleeve to give it a diametrical elasticity, - the cylindrical sleeve is engaged by elasticity, inside a bore of a body and it is introduced into said sleeve , a cylindrical body with the ability to move in translation and / or in rotation, so that the recessed and raised areas delimit parts for the circulation and evacuation of air or for the deposition of a self-treatment lubricant.
Avantageusement, après roulage, les zones en creux et en relief apparaissent à l'extérieur ou à l'intérieur et sont obtenues par une opération de gaufrage.Advantageously, after rolling, the hollow and raised areas appear outside or inside and are obtained by an embossing operation.
Compte-tenu de la conception du coussinet, il est possible de le réaliser dans des épaisseurs très réduites, de l'ordre de 3/10 de mm.Given the design of the pad, it is possible to produce it in very reduced thicknesses, of the order of 3/10 mm.
Pour résoudre le problème posé d'assurer la fixation du coussinet, dans un alésage, en supprimant l'emploi d'une collerette ou autres éléments de blocage en translation, le manchon cylindrique fendu est introduit par élasticité à l'intérieur d'un alésage d'un corps en matière, plastique notamment.To resolve the problem posed of securing the bearing, in a bore, by eliminating the use of a flange or other elements for locking in translation, the split cylindrical sleeve is introduced by elasticity inside a bore of a body made of material, in particular plastic.
L'invention est exposée, ci-après plus en détail à l'aide des dessins annexés, dans lesquels :The invention is set out below in more detail using the appended drawings, in which:
La figure 1 est une vue en plan du feuillard métallique. La figure 2 est une vue en perspective montrant le roulage du feuillard pour obtenir un manchon fendu.Figure 1 is a plan view of the metal strip. Figure 2 is a perspective view showing the rolling of the strip to obtain a split sleeve.
La figure 3 est une vue en coupe longitudinale montrant l'application du coussinet selon l'invention à un contact démarreur pour véhicule automobile. La figure 4 est, à très grande échelle, une vue en coupe* transversale considérée selon la ligne 4.4 de la figure 3.Figure 3 is a longitudinal sectional view showing the application of the pad according to the invention to a starter contact for a motor vehicle. Figure 4 is, on a large scale, a sectional view transverse * along line 4.4 of Figure 3.
Selon l'invention, le coussinet est réalisé par roulage d'un feuillard métallique (1) d'épaisseur réduite.According to the invention, the pad is produced by rolling a metal strip (1) of reduced thickness.
Avantageusement, le feuillard (1 ) présente une épaisseur inférieure ou égale à 7/10 mm. Le feuillard (1) est soumis, préalablement à l'opération de roulage, à une opération apte à déformer ponctuellement la matière, pour constituer des zones en creux (1a) et en relief (1b). Ces zones sont obtenues par une opération de gaufrage et peuvent apparaître à l'intérieur et/ou à l'extérieur.Advantageously, the strip (1) has a thickness less than or equal to 7/10 mm. The strip (1) is subjected, prior to the rolling operation, to an operation capable of punctually deforming the material, to form hollow (1a) and raised (1b) areas. These areas are obtained by an embossing operation and can appear inside and / or outside.
Comme indiqué, après cette opération de gaufrage, le feuillard est soumis à une opération de roulage, par tout moyen connu et approprié, pour obtenir un manchon cylindrique fendu (1c). Eventuellement, pour certaines applications, on prévoit de réaliser, au niveau de la fente (1c1), des agencements d'agrafage.As indicated, after this embossing operation, the strip is subjected to a rolling operation, by any known and appropriate means, to obtain a split cylindrical sleeve (1c). Optionally, for certain applications, provision is made to produce, at the level of the slot (1c1), stapling arrangements.
Ainsi réalisé, le manchon fendu peut être introduit par élasticité, à l'intérieur d'un alésage (2a) d'un corps (2), en matière plastique.Thus produced, the split sleeve can be introduced by elasticity, inside a bore (2a) of a body (2), made of plastic.
Il apparaît qu'après introduction du manchon (1c) dans l'alésage (2a), le gaufrage (1a) (1b) et la fente (1c1) délimitent des canaux pour la circulation et l'évacuation de l'air.It appears that after introduction of the sleeve (1c) in the bore (2a), the embossing (1a) (1b) and the slot (1c1) delimit channels for the circulation and evacuation of air.
Comme indiqué, le coussinet, selon les caractéristiques de l'invention, trouve une application particulièrement avantageuse, dans le cas d'un contacteur démarreur. Le manchon (1c) est logé à l'intérieur de l'alésage (2a) du corps (2) sous forme d'une bobine (3), entre les flasques- de laquelle est enroulé un bobinage (4), constituant l'induit. Le bobinage participe à la solidarisation de l'ensemble du manchon, en combinaison avec les parties en creux et en relief (1a) et (1b) qui constitue des zones d'ancrage (figure 3).As indicated, the bearing, according to the characteristics of the invention, finds a particularly advantageous application, in the case of a starter contactor. The sleeve (1c) is housed inside the bore (2a) of the body (2) in the form of a coil (3), between the flanges- from which is wound a coil (4), constituting the induced. The winding participates in the joining of the whole of the sleeve, in combination with the hollow and raised parts (1a) and (1b) which constitute anchoring zones (FIG. 3).
En outre, sous l'effort de serrage résultant du bobinage, d'une part, et de la faible épaisseur du feuillard (1), d'autre part, le gaufrage (1a) (1b) est reproduit à l'intérieur du manchon, suite à la déformation du métal, constituant des canaux pour la circulation et l'évacuation de l'air (figure 4).In addition, under the clamping force resulting from the winding, on the one hand, and the thin thickness of the strip (1), on the other hand, the embossing (1a) (1b) is reproduced inside the sleeve. , following the deformation of the metal, constituting channels for the circulation and evacuation of air (Figure 4).
Le noyau plongeur (P) peut, dans ces conditions, être déplacé en toute sécurité, sans risque de grippage, l'air étant chassé par les cannaux.The plunger core (P) can, under these conditions, be moved safely, without risk of seizure, the air being expelled by the channels.
On obtient donc une diminution de la portée, tout en obtenant un meilleur coefficient de glissement, le gaufrage permettant, comme indiqué, d'évacuer l'air et d'éviter par conséquent, tout problème de coincement, lorsque par exemple, un noyau plongeur est introduit dans le manchon (1c).A reduction in the range is therefore obtained, while obtaining a better coefficient of sliding, the embossing making it possible, as indicated, to evacuate the air and consequently to avoid any problem of jamming, when for example, a plunger core is introduced in the sleeve (1c).
Le coussinet, mis en oeuvre selon le procédé de l'invention, peut trouver d'autres applications, particulièrement dans tous les cas où des problèmes de liaison et de circulation de l'air peuvent apparaître et plus particulièrement, dans tous les cas où les éléments mis en oeuvre nécessitent un usinage très précis. De même, le procédé peut être mis en oeuvre par la réalisation d'éléments autres que les coussinets. On peut citer par exemple, les rondelles.The bearing, implemented according to the method of the invention, can find other applications, particularly in all cases where problems of connection and air circulation can appear and more particularly, in all cases where the elements used require very precise machining. Similarly, the method can be implemented by producing elements other than the pads. We can cite for example, washers.
Plus généralement, l'invention trouve une application, dans tous les cas de pièces combinant un mouvement de rotation et de translation.More generally, the invention finds an application, in all cases of parts combining a movement of rotation and translation.
Les avantages ressortent bien de la description, en particulier on souligne et on rappelle :The advantages clearly emerge from the description, in particular it is emphasized and recalled:
- La possibilité de réaliser un coussinet d'épaisseur très réduite, avec capacité de déformation élastique, pour son introduction dans un alésage, évitant l'obligation de réaliser des ajustements très précis, comme c'est le cas selon l'état antérieur de la technique, notamment dans le cas de manchons frittes.- The possibility of making a bearing of very reduced thickness, with capacity for elastic deformation, for its introduction into a bore, avoiding the obligation to make very precise adjustments, as is the case according to the prior state of the technical, especially in the case of sintered sleeves.
- Les zones en creux et en relief s'avèrent particulièrement- avantageuses pour l'évacuation de l'air ou pour le dépôt de tout type de traitement auto-lubrifiant. - The recessed and raised areas prove to be particularly advantageous for evacuating the air or for depositing any type of self-lubricating treatment.

Claims

R E V E N D I C AT I O N S R E V E N D I C AT I O N S
-1- Procédé de fabrication d'une pièce métallique de faible épaisseur, caractérisé en ce que : - on prend un feuillard (1) d'épaisseur inférieure ou égale à 7/10 de mm,-1- Method of manufacturing a thin metal part, characterized in that: - a strip (1) of thickness less than or equal to 7/10 mm is taken,
- on soumet l'une des faces au moins du feuillard, à une opération apte à déformer ponctuellement la matière pour constituer des zones en creux et en relief (1a) (1b),- at least one of the faces of the strip is subjected to an operation capable of temporarily deforming the material to form recessed and raised areas (1a) (1b),
- on soumet le feuillard à une opération de roulage pour obtenir un manchon cylindrique fendu (1c) pour lui conférer une élasticité diamétrale,- the strip is subjected to a rolling operation to obtain a split cylindrical sleeve (1c) to give it a diametrical elasticity,
- on engage le manchon cylindrique par élasticité, à l'intérieur d'un alésage (2a) d'un corps (2) et on introduit dans ledit manchon, un corps cylindrique avec capacité de déplacement en translation et/ou en rotation, de sorte que les zones en creux et en relief délimitent des parties pour la circulation et l'évacuation de l'air ou pour le dépôt d'un traitement auto¬ lubrifiant.- the cylindrical sleeve is engaged by elasticity, inside a bore (2a) of a body (2) and a cylindrical body is introduced into said sleeve with capacity for displacement in translation and / or in rotation, so that the recessed and raised areas delimit parts for the circulation and evacuation of air or for depositing a self-lubricating treatment.
-2- Procédé selon la revendication 1 , caractérisé en ce qu'après roulage, les zones en creux et en relief (1a) (1b) apparaissent à l'extérieur et/ou à l'intérieur.-2- Method according to claim 1, characterized in that after rolling, the recessed and raised areas (1a) (1b) appear outside and / or inside.
-3- Procédé selon la revendication 1 , caractérisé en ce qu'on obtient les zones en creux et en relief (1a) (1b) par une opération de gaufrage.-3- The method of claim 1, characterized in that one obtains the recessed and raised areas (1a) (1b) by an embossing operation.
-4- Coussinet obtenu par la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le manchon cylindrique fendu (1c) est introduit par élasticité à l'intérieur d'un alésage (2a) d'un corps (2) en matière plastique notamment, ledit manchon recevant avec capacité de déplacement en translation et/ou en rotation, d'une manière guidée, un corps cylindrique. -5- Coussinet selon la revendication 4, caractérisé par son application à un contacteur - démarreur, le manchon (1c) étant introduit dans l'alésage d'une bobine (3), dont le noyau reçoit un enroulement sinusoïdal (4) constituant l'induit, à l'intérieur du manchon, étant logé l'élément cylindrique, sous forme d'un élément plongeur (P). -4- Bushing obtained by the implementation of the method according to any one of claims 1 to 3, characterized in that the split cylindrical sleeve (1c) is introduced by elasticity inside a bore (2a) d 'A body (2) in particular plastic, said sleeve receiving with displacement capacity in translation and / or rotation, in a guided manner, a cylindrical body. -5- A bearing according to claim 4, characterized by its application to a contactor - starter, the sleeve (1c) being introduced into the bore of a coil (3), the core of which receives a sinusoidal winding (4) constituting l armature, inside the sleeve, being housed the cylindrical element, in the form of a plunger element (P).
EP95923381A 1994-06-15 1995-06-14 Method for manufacturing a thin metal part and application particularly to a bush Withdrawn EP0760721A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9407595A FR2721238B1 (en) 1994-06-15 1994-06-15 Method for manufacturing a thin metal part and its application to a pad in particular.
FR9407595 1994-06-15
PCT/FR1995/000778 WO1995034390A1 (en) 1994-06-15 1995-06-14 Method for manufacturing a thin metal part and application particularly to a bush

Publications (1)

Publication Number Publication Date
EP0760721A1 true EP0760721A1 (en) 1997-03-12

Family

ID=9464462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95923381A Withdrawn EP0760721A1 (en) 1994-06-15 1995-06-14 Method for manufacturing a thin metal part and application particularly to a bush

Country Status (4)

Country Link
EP (1) EP0760721A1 (en)
CN (1) CN1150768A (en)
FR (1) FR2721238B1 (en)
WO (1) WO1995034390A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001252490A (en) * 2000-03-14 2001-09-18 Juki Corp Sewing machine
CN101530873B (en) * 2009-04-15 2011-01-19 秦龙 Process for fabricating slotted liner bushing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283918A (en) * 1940-05-02 1942-05-26 Cleveland Graphite Bronze Co Method of making bushings
US3142887A (en) * 1960-09-14 1964-08-04 Star Kugelhalter Gmbh Dt Method of making a split annular tolerance ring
GB1394828A (en) * 1971-07-21 1975-05-21 Glacier Metal Co Ltd Apparatus for manufacturing thin-walled half bearings
JPS57154341A (en) * 1981-03-18 1982-09-24 Taiyo Stainless Spring Kk Production for bush to be inserted
GB8923552D0 (en) * 1989-10-19 1989-12-06 Glacier Metal Co Ltd Bearings
DE69204900T2 (en) * 1991-05-16 1996-03-21 Pullman Co Improved rubber-metal bearing and process for its manufacture.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9534390A1 *

Also Published As

Publication number Publication date
WO1995034390A1 (en) 1995-12-21
FR2721238A1 (en) 1995-12-22
FR2721238B1 (en) 1996-09-13
CN1150768A (en) 1997-05-28

Similar Documents

Publication Publication Date Title
EP1979995B1 (en) Electric motor brush
FR2549551A1 (en) PROCESS FOR MANUFACTURING HALF CUPBOARDS WITH SHOULDER FLASKS
CA2901656A1 (en) Magnet-bearing moving part for permanent magnet synchronous machine
FR2896828A1 (en) ENGINE STARTER EQUIPPED WITH A UNIDIRECTIONAL CLUTCH.
FR2676872A1 (en) CARTER STRUCTURE FOR ENGINE.
FR2828715A1 (en) ELASTIC SLEEVE AND METHOD FOR MANUFACTURING SUCH AN ELASTIC SLEEVE, IN PARTICULAR FOR PRE-STRESSING A PIEZOELECTRIC ACTUATOR IN A VALVE
EP0760721A1 (en) Method for manufacturing a thin metal part and application particularly to a bush
EP1882121A2 (en) Sealing by material deformation
FR2634602A1 (en) ELECTRIC MOTOR COMPRISING AN AUTOMATICALLY OPERATING BRAKE
FR2767080A1 (en) Electromagnetic clutch manufacture
FR2850215A1 (en) Armature of motor in vehicle starter, consists of grooves formed in brush-slide surface of commutator, so as to increase contact area with brush
FR3048734B1 (en) MOTOR VEHICLE STARTER GEAR WITH IMPROVED ACOUSTIC PERFORMANCE
FR2992367A1 (en) Starting device i.e. choke for starting internal combustion engine of vehicle, has transmission comprising axial clearance limitation unit for decreasing and/or removing axial clearance, and plastically deformable section in axial direction
FR2681921A1 (en) METHOD FOR MANUFACTURING A BRAKE STRIP
EP3707412A1 (en) Pulley for a starter-alternator
FR2797109A1 (en) Automobile starter motor has two part axially aligned housing with low axial play in inductor shaft
FR2925619A1 (en) Solenoid starter for heat engine of motor vehicle, has head with indexing finger that is co-operated with notches carried by bearing for positioning cylinder head on bearing in two angular assembling positions around its longitudinal axis
FR2894402A1 (en) CYLINDER OF A ROTATING ELECTRIC MACHINE AND METHOD OF MANUFACTURING THE SAME
WO2017153672A1 (en) Motor vehicle starter motor pinion with a variable-radius tooth-root fillet
WO2005113841A2 (en) Method for producing a shaft pertaining to a starter
FR2809782A1 (en) HYDROSTATIC ALVEOLE FLUID BEARING AND MANUFACTURING METHOD THEREOF
FR3077848A1 (en) MOTOR VEHICLE STARTER GEAR WITH IMPROVED ACOUSTIC PERFORMANCE
FR2816126A1 (en) ARMATURE SHAFT OF ELECTRIC MOTOR COMPRISING AN OUTLET PINION, AND STARTER OF A MOTOR VEHICLE COMPRISING SUCH AN ARMATURE SHAFT
FR3081939A1 (en) LAUNCHER FOR MOTOR VEHICLE STARTER
FR3056261A1 (en) MOTOR VEHICLE STARTER GEAR WITH IMPROVED ACOUSTIC PERFORMANCE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE DK ES FR GB IT NL PT SE

17Q First examination report despatched

Effective date: 19990723

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19991006