FR2484036A1 - METHOD OF ATTACHING A BRAKE LINING TO ITS SUPPORT, AND BRAKE ELEMENT OBTAINED - Google Patents
METHOD OF ATTACHING A BRAKE LINING TO ITS SUPPORT, AND BRAKE ELEMENT OBTAINED Download PDFInfo
- Publication number
- FR2484036A1 FR2484036A1 FR8012717A FR8012717A FR2484036A1 FR 2484036 A1 FR2484036 A1 FR 2484036A1 FR 8012717 A FR8012717 A FR 8012717A FR 8012717 A FR8012717 A FR 8012717A FR 2484036 A1 FR2484036 A1 FR 2484036A1
- Authority
- FR
- France
- Prior art keywords
- support
- brake
- lining
- brake lining
- thermoplastic material
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract 3
- 239000012815 thermoplastic material Substances 0.000 claims description 9
- 150000001768 cations Chemical class 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 239000007799 cork Substances 0.000 abstract description 3
- 239000010425 asbestos Substances 0.000 abstract description 2
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D69/0408—Attachment of linings specially adapted for plane linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
- B29C37/0082—Mechanical anchoring
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7482—Brakes
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/0441—Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/0483—Lining or lining carrier material shaped in situ
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
La présente invention concerne les éléments de freins, comportant un support en matière thermoplastique, ce support supportant au moins une garniture de frein réalisée en matière poreuse constituée par exemple de liège, d'amiante, etc. Elle concerne également un procédé permettant de fixer une telle garniture sur son support en matière thermoplastique. The present invention relates to brake elements, comprising a support made of thermoplastic material, this support supporting at least one brake lining made of porous material consisting for example of cork, asbestos, etc. It also relates to a method for fixing such a lining on its support in thermoplastic material.
Dans des éléments de frein connus de ce genre, tels que celui décrit dans le brevet français NO 2 376 286, la garniture en matière poreuse est solidarisée de son support par une couche de colle. In known brake elements of this kind, such as that described in French Patent No. 2,376,286, the lining of porous material is secured to its support by a layer of adhesive.
Une telle solution présente certains inconvénients car la couche de colle peut ne pas assurer une fixation aussi efficace qu on pourrait le supposer a priori. En effet, l'efficacité de cette couche de colle dépend, pour une part, de la façon dont llopération de collage a été effectuée. Or cette opération de collage est souvent effectuée manuellement, surtout lorsque les quantités d'éléments a fabriquer sont relativement faibles, et l'épaisseur optimale de la couche de colle, ainsi que sa répartition correcte sur toute la surface des pièces à assembler, risquent de ne pas être absolument identiques sur tous les éléments de frein.Ainsi, si cette opération de collage n'est pas effectuée correctement a cent pour cent, les éléments de freins obtenus risquent de ne pas assurer un freinage efficace à cent pour cent, ce qui est un inconvénient. Such a solution has certain drawbacks because the adhesive layer may not provide as effective a fixing as one might suppose a priori. Indeed, the effectiveness of this layer of adhesive depends, in part, on the manner in which the bonding operation was carried out. However, this bonding operation is often carried out manually, especially when the quantities of elements to be manufactured are relatively small, and the optimum thickness of the adhesive layer, as well as its correct distribution over the entire surface of the parts to be assembled, risk being not be absolutely identical on all brake elements, so if this bonding operation is not carried out one hundred percent correctly, the brake elements obtained may not ensure 100% effective braking, which is a drawback.
Le procédé de fixation d'une ou plusieurs garnitures en matière poreuse, sur un élément réalisé en matière thermoplastique, élément lui servant de support dans un dispositif de freinage, est, suivant l'invention, caractérisé en ce que l'élément-support en matière thermoplastique est sur moulé sur la garniture en matière poreuse. L'élément de frein obtenu en utilisant un tel procédé de fixation est caractérisé en ce que la garniture est ainsi solidarisée de son support par des mini-aspérités d'ancrage, faisant partie du support, s'étendant dans les porosités de la garniture. The method of fixing one or more linings of porous material, on an element made of thermoplastic material, element serving as a support in a braking device, is, according to the invention, characterized in that the support element in thermoplastic material is molded on the lining of porous material. The brake element obtained by using such a fixing method is characterized in that the lining is thus secured to its support by mini-asperities of anchoring, forming part of the support, extending in the porosities of the lining.
Une telle solution présente de nombreux avantages. En effet, si l'opération de surmoulage est certes connue en ellememe, elle est le plus souvent utilisée pour assembler un insert métallique dans une pièce en matière plastique moulée et cet insert métallique doit avoir une forme particulière réalisée spécialement, pour pouvoir être maintenu dans la pièce moulée, lors du surmoulage de celle-ci. Ce n'est pas le cas dans la présente invention, dans laquelle il n'est pas nécessaire que la garniture ait une forme particulière complexe; une face même plane d'une garniture en matière poreuse peut en effet être ainsi fixée à son élément-support en utilisant un procédé qui, contrairement au collage utilisé dans l'art antérieur, est effectué mécaniquement dans un moule, d'une façon constante et régulière. Such a solution has many advantages. Indeed, if the overmolding operation is certainly known in itself, it is most often used to assemble a metal insert in a molded plastic part and this metal insert must have a particular shape specially made, in order to be able to be maintained in the molded part, during overmolding of the latter. This is not the case in the present invention, in which the lining need not have a particularly complex shape; even a flat face of a lining made of porous material can indeed be thus fixed to its support element using a process which, unlike the bonding used in the prior art, is carried out mechanically in a mold, in a constant manner and regular.
L'élément de frein, obtenu en utilisant le procédé suivant l'invention, présente lui aussi de nombreux avantages car les mini-aspérités d'ancrage, faisant partie du support, qui s'étendent dans les porosités de la garniture en matière poreuse, assurent une fixation absolument efficace, de la garniture sur son support. La séparation de la garniture et du support est pratiquement impossible sans détruire la garniture ellemême. The brake element, obtained using the method according to the invention, also has many advantages because the mini-asperities of anchoring, forming part of the support, which extend in the porosities of the lining of porous material, ensure an absolutely effective fixing of the gasket on its support. The separation of the lining and the support is practically impossible without destroying the lining itself.
Le dessin annexé illustre, à titre d'exemple un mode de réalisation d'un élément de frein, conforme à la présente invention. The accompanying drawing illustrates, by way of example an embodiment of a brake element, in accordance with the present invention.
La fig. I représente, vu en coupe longitudinale, un tel élément de frein. Fig. I represents, seen in longitudinal section, such a brake element.
La fig. 2 représente partiellement le même élément, vu en coupe suivant Il-Il de la fig. 1, à très grande échelle. Fig. 2 partially shows the same element, seen in section along Il-Il of FIG. 1, on a very large scale.
Tel qu'il est représenté sur la fig. 1, l'élément de frein, qui est par exemple un élément coulissant pour frein de moteur électrique, comporte un support en matière thermoplastique 1, qui supporte une garniture de frein 5 réalisée en matière poreuse, par exemple en liège aggloméré. La fa ce 2, de forme générale plane dans cet exemple, de la garniture 5 est solidarisée de son support i par une multitude de mini-aspérités d'ancrage 3, faisant partie du support 1. Ces mini-aspérités 3 (fig. 2) se sont formées à l'intérieur des porosités 4 de la garniture 5, lors du surmoulage du sur port 1. As shown in fig. 1, the brake element, which is for example a sliding element for an electric motor brake, comprises a support made of thermoplastic material 1, which supports a brake lining 5 made of porous material, for example agglomerated cork. Fa 2, of generally flat shape in this example, of the lining 5 is secured to its support i by a multitude of mini-asperities of anchoring 3, forming part of the support 1. These mini-asperities 3 (fig. 2 ) formed inside the porosities 4 of the lining 5, during overmolding of the port 1.
Dans cet exemple de réalisation, un examen au microscope a permis de constater que les plus grosses de ces mini-aspérités avaient une hauteur d'environ O,l millimètre, celles-ci étant ellesmêmes hérissées de mini-aspérités plus petites, d'une hauteur de quelques millièmes de millimètre en viron, orientées en toutes directions. In this exemplary embodiment, an examination under a microscope revealed that the largest of these mini-asperities were about 0.1 millimeter high, these themselves being bristling with smaller mini-asperities, of a approximately a few thousandths of a millimeter in height, oriented in all directions.
Claims (3)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8012717A FR2484036A1 (en) | 1980-06-04 | 1980-06-04 | METHOD OF ATTACHING A BRAKE LINING TO ITS SUPPORT, AND BRAKE ELEMENT OBTAINED |
| DE19813119126 DE3119126A1 (en) | 1980-06-04 | 1981-05-14 | Braking element and a method for its manufacture |
| JP8424881A JPS5722431A (en) | 1980-06-04 | 1981-06-01 | Manufacture of brake parts and brake device |
| BE0/216667A BE904774Q (en) | 1980-06-04 | 1986-05-14 | METHOD OF FIXING A BRAKE LINING ON ITS SUPPORT AND OBTAINED BRAKE ELEMENT. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8012717A FR2484036A1 (en) | 1980-06-04 | 1980-06-04 | METHOD OF ATTACHING A BRAKE LINING TO ITS SUPPORT, AND BRAKE ELEMENT OBTAINED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2484036A1 true FR2484036A1 (en) | 1981-12-11 |
| FR2484036B1 FR2484036B1 (en) | 1984-09-21 |
Family
ID=9242838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8012717A Granted FR2484036A1 (en) | 1980-06-04 | 1980-06-04 | METHOD OF ATTACHING A BRAKE LINING TO ITS SUPPORT, AND BRAKE ELEMENT OBTAINED |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5722431A (en) |
| BE (1) | BE904774Q (en) |
| DE (1) | DE3119126A1 (en) |
| FR (1) | FR2484036A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0578927A2 (en) * | 1992-05-27 | 1994-01-19 | Sew-Eurodrive Gmbh & Co. | Brake disc and method of manufacturing a brake disc |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3213951C2 (en) * | 1982-04-16 | 1989-08-10 | KERFA GmbH Industriebeheizungen, 5820 Gevelsberg | Method of manufacturing a ceramic fiber insulating body |
| EP0267561A1 (en) * | 1986-11-14 | 1988-05-18 | ZWN ZAHNRADWERK NEUENSTEIN GMBH & CO. | Method of manufacturing synchroniser parts for motor vehicle transmissions |
| JPH0229183U (en) * | 1988-08-12 | 1990-02-26 | ||
| DE4343429C2 (en) * | 1993-12-18 | 1999-08-12 | Schaeffler Waelzlager Ohg | Tensioning device for a belt or chain drive |
| DE10103669B4 (en) * | 2001-01-27 | 2004-07-29 | Ksb Ag | Process for producing a plastic-coated casting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2332737A (en) * | 1940-07-23 | 1943-10-26 | Gen Motors Corp | Composite metal article |
| FR1205580A (en) * | 1957-04-24 | 1960-02-03 | Bendix Aviat Corp | Friction member fabrication and attachment processes |
| US3265167A (en) * | 1964-07-10 | 1966-08-09 | Goodyear Tire & Rubber | Integral molded piston and lining for brakes and method for forming thereof |
| FR2158003A1 (en) * | 1971-10-29 | 1973-06-08 | Bp Chem Int Ltd |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1911415A (en) * | 1931-07-07 | 1933-05-30 | Bendix Brake Co | Brake shoe |
| DE2659457A1 (en) * | 1976-12-30 | 1978-07-06 | Gross Hans | ELECTRIC DRIVE DEVICE FOR BLINDS |
-
1980
- 1980-06-04 FR FR8012717A patent/FR2484036A1/en active Granted
-
1981
- 1981-05-14 DE DE19813119126 patent/DE3119126A1/en not_active Ceased
- 1981-06-01 JP JP8424881A patent/JPS5722431A/en active Pending
-
1986
- 1986-05-14 BE BE0/216667A patent/BE904774Q/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2332737A (en) * | 1940-07-23 | 1943-10-26 | Gen Motors Corp | Composite metal article |
| FR1205580A (en) * | 1957-04-24 | 1960-02-03 | Bendix Aviat Corp | Friction member fabrication and attachment processes |
| US3265167A (en) * | 1964-07-10 | 1966-08-09 | Goodyear Tire & Rubber | Integral molded piston and lining for brakes and method for forming thereof |
| FR2158003A1 (en) * | 1971-10-29 | 1973-06-08 | Bp Chem Int Ltd |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0578927A2 (en) * | 1992-05-27 | 1994-01-19 | Sew-Eurodrive Gmbh & Co. | Brake disc and method of manufacturing a brake disc |
| EP0578927A3 (en) * | 1992-05-27 | 1994-08-10 | Sew Eurodrive Gmbh & Co | Brake disc and method of manufacturing a brake disc |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2484036B1 (en) | 1984-09-21 |
| JPS5722431A (en) | 1982-02-05 |
| BE904774Q (en) | 1986-09-01 |
| DE3119126A1 (en) | 1982-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |