FR2518702A1 - Hydraulic clutch housing with feed pipes - uses housing wall insert to locate bore former during moulding - Google Patents

Hydraulic clutch housing with feed pipes - uses housing wall insert to locate bore former during moulding Download PDF

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Publication number
FR2518702A1
FR2518702A1 FR8221297A FR8221297A FR2518702A1 FR 2518702 A1 FR2518702 A1 FR 2518702A1 FR 8221297 A FR8221297 A FR 8221297A FR 8221297 A FR8221297 A FR 8221297A FR 2518702 A1 FR2518702 A1 FR 2518702A1
Authority
FR
France
Prior art keywords
housing
casing
locate
bore
hydraulic clutch
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
Application number
FR8221297A
Other languages
French (fr)
Other versions
FR2518702B1 (en
Inventor
Manfred Brandenstein
Hans Rudiger
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.)
SKF GmbH
Original Assignee
SKF Kugellagerfabriken GmbH
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 SKF Kugellagerfabriken GmbH filed Critical SKF Kugellagerfabriken GmbH
Publication of FR2518702A1 publication Critical patent/FR2518702A1/en
Application granted granted Critical
Publication of FR2518702B1 publication Critical patent/FR2518702B1/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/08Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/083Actuators therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00Fluid-actuated clutches
    • F16D25/12Details not specific to one of the before-mentioned types

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Actuator (AREA)

Abstract

The hydraulic clutch housing (1) is equipped with long small bore pipes (3,4) for hydraulic feed and air discharge. A support element (10) is incorporated at the junction between a conduit (3) and the housing. The pipes are tangential to the internal housing wall (7) and the element is sited where the pipe opens out into the housing between the housing wall and the pipe. The element may comprise a bolt with a shoulder (13) or a body with two diametrically opposed limbs, its purpose being to locate the pipe-former (9) during pressure moulding of the housing.

Description

carter, notamment pour embrayages
à commande hydraulique
La présente invention concerne un carter, destiné notamment à des embrayages à commande hydraulique, et comportant de longs conduits à faible diamètre qui débouchent tangentiellement dans l'alésage du carter.
casing, especially for clutches
hydraulically operated
The present invention relates to a housing, intended in particular for hydraulically controlled clutches, and comprising long small diameter conduits which open tangentially into the bore of the housing.

I1 est déjà connu de réaliser des carters comportant des tuyaux ou évents du genre sifflet ou pipe qui sont façonnés d'un seul tenant, par exemple par moulage sous pression, et de fabriquer ensuite, par enlèvement de copeaux, les longs conduits qui débouchent tangentiellement dans l'alésage du carter. It is already known to produce casings comprising pipes or vents of the whistle or pipe type which are formed in one piece, for example by die-casting, and then to manufacture, by removal of chips, the long conduits which open tangentially. in the housing bore.

Ces carters connus présentent toutefois l'inconvénient d'être d'une fabrication très longue et coûteuse. These known casings, however, have the disadvantage of being very long and expensive to manufacture.

La présente invention a pour objet de mettre au point un carter, notamment pour embrayages à commande hydraulique, dans le cas duquel les longs conduits à faible diamètre qui débouchent tangentiellement dans un alésage du carter puissent être fabriqués, avec la précision de forme requise, lors du moulage du carter. The object of the present invention is to develop a casing, in particular for hydraulically controlled clutches, in the case of which the long, small diameter conduits which open tangentially into a bore of the casing can be manufactured, with the required shape precision, when of the casing molding.

Dans le cas des carters du type défini ci-dessus, la présente invention permet de résoudre ce problème par le fait qu'un élément de support est prévu dans le carter, pour chaque conduit, dans la zone où le conduit débouche dans l'alésage du carter, entre la paroi du carter et le conduit, élément de support qui, pendant le moulage sous pression, est disposé de façon à reposer, par une surface tournée vers l'alésage du carter, sur l'extrémité libre du noyau prévu pour former le conduit. In the case of casings of the type defined above, the present invention makes it possible to solve this problem by the fact that a support element is provided in the casing, for each conduit, in the area where the conduit opens into the bore. of the casing, between the wall of the casing and the duct, a support element which, during the pressure molding, is arranged so as to rest, by a surface facing the bore of the casing, on the free end of the core provided for form the conduit.

On obtient ainsi que le noyau prévu pour le conduit ne soit pas poussé hors de sa position pendant le moulage sous pression. It is thus obtained that the core provided for the conduit is not pushed out of its position during the pressure molding.

Une caractéristique additionnelle de la présente invention prévoit que l'élément de support soit constitué par un boulon qui présente une partie en épaulement. An additional feature of the present invention provides that the support element is constituted by a bolt which has a shoulder portion.

Une autre caractéristique de la présente invention prévoit que l'élément de support comporte une partie centrale et deux tronçons diamétralement opposés. Another characteristic of the present invention provides that the support element comprises a central part and two diametrically opposite sections.

La présente invention sera mieux comprise à l'aide de la description détaillée d'un mode de réalisation pris comme exemple non limitatif et illustré par le dessin annexé, sur lequel
- la figure 1 est une vue d'un carter comportant un élément de support noyé dans le carter au moulage
- la figure 2 est une vue d'un autre mode de réalisation d'un élément de support.
The present invention will be better understood with the aid of the detailed description of an embodiment taken as a nonlimiting example and illustrated by the appended drawing, in which
- Figure 1 is a view of a housing comprising a support element embedded in the housing during molding
- Figure 2 is a view of another embodiment of a support element.

Le carter 1 représenté sur la figure 1 est réalise en une matière plastique renforcée de fibres de verre et est utilisé pour un dispositif de débrayage à commande hydraulique (non représenté) destiné à des embrayages de véhicules automobiles. Le carter i comporte une chambre de pression annulaire 2 et deux tuyaux du genre sifflet ou pipe 3, 4, façonnés d'un seul tenant et relié-s l'un à l'autre par une barrette ou ailette de liaison 5. Le tuyau inférieur 4 présente un conduit d'amenée 6 prévu pour le fluide de pression, lequel déplace, dans le sens de l'axe, un piston (non représenté) prévu dans la chambre de pression 2, et opère le débrayage de l'embrayage par l'intermédiaire de moyens appropriés.Pour obtenir une bonne évacuation de l'air de la chambre de pression 2, il est prévu que le conduit d'évacuation de l'air 8, qui est tangentiel à l'alésage 7 du carter, débouche dans le tuyau 3, en haut, dans l'alésage 7 du carter. Par suite de cette disposition du conduit d'évacuation de l'air 8, qui est un conduit long et à faible diamètre, il est difficile de maintenir et de guider le noyau 9 prévu pour le conduit 8 pendant le moulage sous pression. A cet effet, un élément de support 10, qui, par une surface 11 tournée vers l'alésage 7 du carter, repose sur l'extrémité libre 12 du noyau 9 prévu pour le conduit 8, est disposé dans le carter 1, dans la zone où le conduit 8 débouche dans l'alésage 7 du carter, entre la paroi extérieure du carter et le conduit.  The casing 1 shown in Figure 1 is made of a plastic material reinforced with glass fibers and is used for a declutching device with hydraulic control (not shown) intended for clutches of motor vehicles. The casing i comprises an annular pressure chamber 2 and two pipes of the whistle or pipe type 3, 4, formed in one piece and connected to each other by a connecting bar or fin 5. The pipe lower 4 has a supply duct 6 provided for the pressure fluid, which moves, in the direction of the axis, a piston (not shown) provided in the pressure chamber 2, and operates the clutch disengaging by To obtain good evacuation of the air from the pressure chamber 2, provision is made for the air evacuation duct 8, which is tangential to the bore 7 of the casing, to open out. in the pipe 3, above, in the bore 7 of the casing. As a result of this arrangement of the air evacuation duct 8, which is a long and small diameter duct, it is difficult to maintain and guide the core 9 provided for the duct 8 during the pressure molding. To this end, a support element 10, which, by a surface 11 facing the bore 7 of the casing, rests on the free end 12 of the core 9 provided for the conduit 8, is disposed in the casing 1, in the area where the duct 8 opens into the bore 7 of the casing, between the outer wall of the casing and the duct.

L'élément de support 10, qui est, par exemple, réalisé sous la forme d'un boulon cylindrique comportant une partie en épaulement 13 de section réduite, peut être en métal ou en matière plastique. Lorsque l'on utilise de la matière plastique, il faut que le point de fusion de l'élément de support 10 soit plus élevé que celui du matériau du carter. The support element 10, which is, for example, produced in the form of a cylindrical bolt having a shoulder portion 13 of reduced section, can be made of metal or plastic. When using plastic, the melting point of the support member 10 must be higher than that of the housing material.

La figure 2 représente un élément de support 14 qui se compose d'une partie centrale cylindrique 15 et de deux tronçons cylindriques 16 diamétralement opposés, de sorte que cet élément se trouve solidement ancré dans le carter après le moulage. FIG. 2 represents a support element 14 which consists of a cylindrical central part 15 and two diametrically opposite cylindrical sections 16, so that this element is firmly anchored in the casing after molding.

Le mode de réalisation décrit ci-dessus ne constitue qu'un exemple d'un carter selon la présente invention. The embodiment described above is only one example of a housing according to the present invention.

Des modifications de la construction des composants sont parfaitement possibles dans le cadre de la présente invention. Modifications to the construction of the components are perfectly possible within the scope of the present invention.

Claims (3)

REVENDICATIQNS l.-larter, destinénotamment à des embrayages à commande hydraulique, et comportant de longs conduits à faible diamètre qui débouchent tangentiellement dans l'ald- sage du carter, caractérisé en ce qu'un élément de support (10, 14) est prévu dans le carter (1), dans la zone où le conduit (8) débouche dans l'alésage (7) du carter, entre la paroi du carter et le conduit l.-larter, in particular for hydraulically controlled clutches, and comprising long small-diameter conduits which open tangentially into the casing alignment, characterized in that a support element (10, 14) is provided in the casing (1), in the zone where the duct (8) opens into the bore (7) of the casing, between the wall of the casing and the duct 2.- Carter selon la revendication 1, caracterisé en ce que l'élément de support (10) est constitué par un boulon qui présente une partie en épaulement (13). 2. Housing according to claim 1, characterized in that the support element (10) is constituted by a bolt which has a shoulder portion (13). 3.- Carter selon la revendication 1, caractérisé en ce que l'élément de support- (14) comporte une partie centrale (15) et deux tronçons diamétralement opposés (16).  3. Housing according to claim 1, characterized in that the support element (14) comprises a central part (15) and two diametrically opposite sections (16).
FR8221297A 1981-12-21 1982-12-20 CRANKCASE, PARTICULARLY FOR HYDRAULICALLY CONTROLLED CLUTCHES Expired FR2518702B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19818137244 DE8137244U1 (en) 1981-12-21 1981-12-21 HOUSING, IN PARTICULAR FOR HYDRAULICALLY ACTUATED COUPLINGS

Publications (2)

Publication Number Publication Date
FR2518702A1 true FR2518702A1 (en) 1983-06-24
FR2518702B1 FR2518702B1 (en) 1985-06-14

Family

ID=6734092

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8221297A Expired FR2518702B1 (en) 1981-12-21 1982-12-20 CRANKCASE, PARTICULARLY FOR HYDRAULICALLY CONTROLLED CLUTCHES

Country Status (3)

Country Link
JP (1) JPS58109727A (en)
DE (1) DE8137244U1 (en)
FR (1) FR2518702B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19523011A1 (en) * 1995-06-24 1997-01-02 Schaeffler Waelzlager Kg Hydraulic release device for a friction clutch
DE19523218A1 (en) * 1995-06-27 1997-01-02 Schaeffler Waelzlager Kg Hydraulically actuated release device for a friction clutch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1087195A (en) * 1953-11-16 1955-02-22 Ideal Standard Process for manufacturing radiators
GB1255002A (en) * 1967-09-01 1971-11-24 Skefko Ball Bearing Company Lt Improvements in or relating to clutch operating mechanisms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1087195A (en) * 1953-11-16 1955-02-22 Ideal Standard Process for manufacturing radiators
GB1255002A (en) * 1967-09-01 1971-11-24 Skefko Ball Bearing Company Lt Improvements in or relating to clutch operating mechanisms

Also Published As

Publication number Publication date
FR2518702B1 (en) 1985-06-14
DE8137244U1 (en) 1982-04-29
JPH0139495B2 (en) 1989-08-22
JPS58109727A (en) 1983-06-30

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