FR2800814A1 - Sleeve insert fastener in molded front panel of vehicle, includes gap preventing rotation and axial sliding by accepting plastic of molding - Google Patents
Sleeve insert fastener in molded front panel of vehicle, includes gap preventing rotation and axial sliding by accepting plastic of molding Download PDFInfo
- Publication number
- FR2800814A1 FR2800814A1 FR9914167A FR9914167A FR2800814A1 FR 2800814 A1 FR2800814 A1 FR 2800814A1 FR 9914167 A FR9914167 A FR 9914167A FR 9914167 A FR9914167 A FR 9914167A FR 2800814 A1 FR2800814 A1 FR 2800814A1
- Authority
- FR
- France
- Prior art keywords
- insert
- sleeve
- slot
- plastic
- axis
- 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
- 239000004033 plastic Substances 0.000 title claims abstract description 27
- 229920003023 plastic Polymers 0.000 title claims abstract description 27
- 238000000465 moulding Methods 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/0408—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights built into the vehicle body, e.g. details concerning the mounting of the headlamps on the vehicle body
- B60Q1/0433—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights built into the vehicle body, e.g. details concerning the mounting of the headlamps on the vehicle body the housing being fastened onto the vehicle body using screws
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/72—Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
-
- 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/12—Nuts or like thread-engaging members with thread-engaging surfaces formed by inserted coil-springs, discs, or the like; Independent pieces of wound wire used as nuts; Threaded inserts for holes
- F16B37/122—Threaded inserts, e.g. "rampa bolts"
-
- 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
- B29C37/0085—Mechanical anchoring by means of openings in the layers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Connection Of Plates (AREA)
Abstract
Description
L'invention concerne un insert de fixation pour une pièce en matière plastique, l'insert étant du type comprenant un manchon de réception d'un or gane de fixation et des moyens de blocage du manchon dans ladite pièce en translation et en rotation par rapport à l'axe du manchon. The invention relates to a fixing insert for a plastic part, the insert being of the type comprising a sleeve for receiving a fixing gold and means for locking the sleeve in said part in translation and in rotation relative to to the axis of the sleeve.
L'invention s'applique en particulier aux faces avant de véhicules automobiles. The invention applies in particular to the front faces of motor vehicles.
Une telle face avant comprend généralement au moins une pièce en matière plastique moulée dans laquelle sont disposés des inserts destinés à recevoir des organes de fixation tels que des vis. Ces inserts permettent ainsi de fixer sur la face avant divers équipements comme, par exemple, un groupe moto- ventilateur, des projecteurs, et un ou plusieurs échangeurs thermiques. Such a front face generally comprises at least one molded plastic part in which are arranged inserts intended to receive fastening members such as screws. These inserts thus make it possible to fix various equipment, such as, for example, a fan motor unit, projectors, and one or more heat exchangers, to the front face.
Généralement, les inserts du type précité sont réalisés par décolle tage, c'est-à-dire usinage sur un tour les uns à la suite des autres à partir d'une barre métallique. Ces inserts ont généralement une forme extérieure moletée présentant une gorge circulaire intermédiaire centrée sur l'axe du manchon. La matière plastique de la face avant est ensuite surmoulée sur ces inserts. La forme extérieure des inserts assure leur blocage à la fois en rotation et en trans lation par rapport à matière plastique qui les entoure. Generally, the inserts of the aforementioned type are produced by peeling, that is to say machining on a lathe one after the other from a metal bar. These inserts generally have a knurled outer shape having an intermediate circular groove centered on the axis of the sleeve. The plastic material of the front face is then overmolded on these inserts. The external shape of the inserts ensures their blocking both in rotation and in relation to the plastic material which surrounds them.
De tels inserts sont relativement coûteux â réaliser, notamment en raison de leur forme extérieure relativement complexe. Such inserts are relatively expensive to produce, in particular because of their relatively complex external shape.
II est également connu d'utiliser des inserts réalisés par mise en forme de tôles et comprennent chacun, avant leur pose, une seule collerette de blocage prolongeant une extrémité de leur manchon. On introduit un tel insert dans la pièce en matière plastique préalablement moulée, puis on vient former une deuxième collerette de blocage à l'autre extrémité du manchon, pour fixer l'insert dans la face avant à la manière d'un rivet. It is also known to use inserts produced by shaping sheets and each comprise, before their installation, a single locking collar extending one end of their sleeve. We introduce such an insert into the plastic part previously molded, then we come to form a second locking collar at the other end of the sleeve, to fix the insert in the front face like a rivet.
L'intégration de tels inserts dans une face avant d'un véhicule au tomobile est donc relativement coûteuse. The integration of such inserts in a front face of a vehicle with a mobile is therefore relatively expensive.
Un but l'invention est de résoudre ces problèmes en fournissant un insert du type precité qui soit de coûts de fabrication et/ou d'intégration dans une pièce en matière plastique plus réduits. An object of the invention is to solve these problems by providing an insert of the aforementioned type which is of lower manufacturing and / or integration costs in a plastic part.
A cet effet, l'invention a pour objet un insert de fixation du type pré cité, caractérisé en ce que le manchon présente une fente formant lesdits moyens de blocage destinée à recevoir de la matière plastique de ladite pièce. Selon des modes particuliers de réalisation, l'insert peut compren dre l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles - la fente s'étend au moins axialement rapport au manchon pour bloquer celui-ci en rotation autour de son axe dans pièce en matière plasti que ; - la fente s'étend en outre transversalement à l'axe du manchon pour bloquer celui-ci en translation le long de son dans la pièce-en matière plastique ; - la fente comprend au moins deux parties qui s'étendent dans des directions non parallèles entre elles ; - la fente comprend au moins un tronçon sensiblement en forme d'ondulation sinusoïdale ; - l'insert est obtenu par mise en forme d'une tôle ; - l'insert est obtenu par roulage d'une tôle préalablement découpée. L'invention a en outre pour objet ensemble comprenant au moins une pièce en matière plastique et au moins insert de fixation disposé dans ladite pièce, l'insert comprenant un manchon réception d'un organe de fixation et des moyens de blocage du manchon dans pièce en translation et en rotation par rapport à l'axe du manchon, le manchon traversant la pièce en ma tière plastique, caractérisé en ce que l'insert est un insert tel que défini ci-dessus. To this end, the invention relates to a fixing insert of the aforementioned type, characterized in that the sleeve has a slot forming said blocking means intended to receive plastic material from said part. According to particular embodiments, the insert can comprise one or more of the following characteristics, taken alone or in any technically possible combination - the slot extends at least axially relative to the sleeve to block it ci in rotation around its axis in plastic part; - The slot further extends transversely to the axis of the sleeve to block the latter in translation along its in the plastic part; - The slot comprises at least two parts which extend in directions which are not parallel to each other; - The slot comprises at least one section substantially in the form of a sinusoidal undulation; - the insert is obtained by shaping a sheet; - The insert is obtained by rolling a previously cut sheet. The invention further relates to an assembly comprising at least one plastic part and at least one fixing insert disposed in said part, the insert comprising a sleeve receiving a fixing member and means for blocking the sleeve in the part. in translation and in rotation relative to the axis of the sleeve, the sleeve passing through the piece of plastic, characterized in that the insert is an insert as defined above.
Selon une variante, l'ensemble constitue une face avant pour un véhicule automobile. According to a variant, the assembly constitutes a front face for a motor vehicle.
L'invention a en outre pour objet un procédé de fabrication d'un en semble tel que défini ci-dessus, caractérisé en ce on surmoule la matière plastique de ladite pièce sur l'insert de fixation. The invention further relates to a method for manufacturing a set as defined above, characterized in that the plastic material of said part is overmolded on the fixing insert.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite se référant aux dessins annexés, sur lesquels - la figure 1 est une vue latérale d'un insert de fixation selon l'invention, - la figure 2 est une vue schématique, partielle, latérale et partielle ment en coupe, illustrant la réalisation d'une face avant d'un véhicule automobile incorporant l'insert de la figure 1, - la figure 3 est une vue partielle, schématique et en coupe prise suivant la ligne 111-11I de la figure 2, et la figure 4 est une vue partielle, schématique et en perspective, illustrant la face avant ainsi obtenue. The invention will be better understood on reading the description which will follow, given solely by way of example, and made with reference to the accompanying drawings, in which - Figure 1 is a side view of a fixing insert according to l invention, - Figure 2 is a schematic, partial, side and partially sectional view, illustrating the production of a front face of a motor vehicle incorporating the insert of Figure 1, - Figure 3 is a view partial, schematic and sectional view taken along line 111-11I of FIG. 2, and FIG. 4 is a partial, schematic and perspective view, illustrating the front face thus obtained.
figure 1 illustre un insert de fixation 1 pour une face avant véhicule automobile. FIG. 1 illustrates a fixing insert 1 for a front face of a motor vehicle.
insert 1 est un manchon de section circulaire et d'axe longitudi nal A, qui présente un orifice traversant 2 circulaire destiné à recevoir un organe de fixation, comme par exemple une vis d'un boulon. L'orifice 2 est centré sur l'axe A. insert 1 is a sleeve of circular section and of longitudinal axis A, which has a circular through hole 2 intended to receive a fixing member, such as for example a screw of a bolt. Port 2 is centered on axis A.
insert 1 est fendu sur toute sa longueur, c'est-à-dire le long de son axe longitudinal A, par une fente 3 traversant toute l'épaisseur de l'insert 1. Cette fente 3 comprend un tronçon intermédiaire 4 en forme d'ondulation sinusoïdale et deux tronçons d'extrémité 5 et 6 rectilignes, alignés, et parallèles l'axe A. insert 1 is split over its entire length, that is to say along its longitudinal axis A, by a slot 3 crossing the entire thickness of the insert 1. This slot 3 comprises an intermediate section 4 in the form of a '' sinusoidal undulation and two straight end sections 5 and 6, aligned, and parallel to axis A.
La fente 3 s'étend donc à la fois axialement et transversalement par rapport à l'insert 1. The slot 3 therefore extends both axially and transversely relative to the insert 1.
Plus particulièrement, le tronçon intermédiaire 4 comprend trois parties successives 7 à 9 qui s'étendent alternativement dans des directions non parallèles entre elles et inclinées par rapport à l'axe A. More particularly, the intermediate section 4 comprises three successive parts 7 to 9 which extend alternately in directions which are not parallel to each other and inclined relative to the axis A.
L'insert 1 a, par exemple, été obtenu par mise en forme d'une tôle. Pour ce faire, la tôle a par exemple été découpée le long de lignes destinées à former les bords de la fente 3 et les tranches supérieure 10 et inférieure 11 de l'insert 1, puis la tôle a été déformée par roulage pour former l'insert 1. The insert 1 has, for example, been obtained by shaping a sheet. To do this, the sheet was for example cut along lines intended to form the edges of the slot 3 and the upper 10 and lower 11 edges of the insert 1, then the sheet was deformed by rolling to form the insert 1.
Comme illustré par les figures 2 et 3, pour intégrer un tel insert dans une face avant d'un véhicule automobile, il est possible de disposer l'insert à l'intérieur d'un moule 12 d'injection d'une matière plastique. On notera que la figure 2 l'insert 2 n'a pas été représenté en coupe. As illustrated in FIGS. 2 and 3, to integrate such an insert into a front face of a motor vehicle, it is possible to arrange the insert inside a mold 12 for injecting a plastic material. Note that Figure 2 the insert 2 has not been shown in section.
Le moule 12 comprend un demi-moule supérieur 13 et un demi- moule inférieur 14 qui s'appuient respectivement sur la tranche supérieure et sur la tranche inférieure 11 de l'insert 1. The mold 12 comprises an upper half-mold 13 and a lower half-mold 14 which are supported respectively on the upper edge and on the lower edge 11 of the insert 1.
Le demi-moule inférieur 14 comprend en outre une broche 17 cir culaire qui s'étend vers le haut et autour de laquelle l'insert 1 est disposé. Cette broche 17 est prolongée radialement au niveau de sa base par une collerette circulaire 18 de diamètre extérieur correspondant au diamètre de l'orifice 2 l'insert 1. The lower half-mold 14 further comprises a circular pin 17 which extends upwards and around which the insert 1 is arranged. This pin 17 is extended radially at its base by a circular collar 18 of outside diameter corresponding to the diameter of the orifice 2 the insert 1.
demi-moule supérieur 13 comprend un pion circulaire 19 saillie vers , disposé en regard de la collerette 18 et de même diamètre extérieur celle-ci. Le bord supérieur de la broche 17 prend appui sur ce pion 19. upper half-mold 13 comprises a circular pin 19 projecting towards, disposed opposite the flange 18 and of the same outer diameter thereof. The upper edge of the pin 17 is supported on this pin 19.
Le pion 19 et la collerette 18, sur lesquels le manchon 1 s'ajuste à faible jeu, assure le positionnement de l'insert 1 dans le moule 12 et son cen trage sur la broche 17. The pin 19 and the collar 18, on which the sleeve 1 adjusts with little play, ensures the positioning of the insert 1 in the mold 12 and its centering on the spindle 17.
La broche 17, la collerette 18, le pion 19 et l'insert 1 délimitent ainsi un espace annulaire 20 qui communique, via la fente 3, avec le reste de l'empreinte de moulage 21 délimitée par le moule 12 et l'insert 1. The spindle 17, the collar 18, the pin 19 and the insert 1 thus delimit an annular space 20 which communicates, via the slot 3, with the rest of the molding imprint 21 delimited by the mold 12 and the insert 1 .
Pour réaliser la face avant, on injecte une matière plastique 22, exemple du polyamide ou du polyéthylène, dans l'empreinte 21 du moule Cette matière plastique remplit alors l'empreinte de moulage 21, y compris fente 3 et l'espace annulaire 20, et entoure donc extérieurement et intérieure ment l'insert Après durcissement de la matière plastique 22 et démoulage, on obtient ainsi face avant 24, partiellement représentée sur la figure 4, qui comprend une pièce en matière plastique 22 surmoulée sur l'insert 1 et traversée de part en par l'insert 1. Les tranches supérieure 10 et inférieure 11 (non visible sur figure 4) de l'insert 1 affleurent dans la face avant 24. La matiere plastique qui a rempli l'espace annulaire 20 forme une bague intérieure dont les tranches supérieure et inférieure sont, du fait de la collerette 18 et pion 19, légèrement en retrait par rapport aux tranches 10 et 11 correspondantes de l'insert 1. To make the front face, a plastic material 22, for example polyamide or polyethylene, is injected into the mold cavity 21 This plastic material then fills the molding cavity 21, including slot 3 and the annular space 20, and therefore surrounds the insert externally and internally After hardening of the plastic material 22 and demolding, the front face 24 is thus obtained, partially shown in FIG. 4, which comprises a plastic part 22 molded onto the insert 1 and passed through right through the insert 1. The upper 10 and lower 11 (not visible in FIG. 4) sections of the insert 1 are flush with the front face 24. The plastic which has filled the annular space 20 forms an inner ring whose upper and lower sections are, due to the collar 18 and pin 19, slightly set back relative to the corresponding sections 10 and 11 of the insert 1.
fait de la matière plastique 22 reçue dans la fente 3, on conçoit que la fente assure un blocage satisfaisant de l'insert 1 dans la face avant la fois en translation et en rotation par rapport à l'axe A de l'insert 1. made of the plastic 22 received in the slot 3, it can be seen that the slot ensures satisfactory blocking of the insert 1 in the front face both in translation and in rotation relative to the axis A of the insert 1.
De plus, la structure relativement simple de l'insert 1, qui permet réalisation par mise en forme d'une tôle et son intégration par surmoulage dans une face avant 24 confère à l'insert 1 des coûts de fabrication et de pose relati vement faibles. In addition, the relatively simple structure of the insert 1, which allows production by shaping a sheet and its integration by molding in a front face 24 gives the insert 1 relatively low manufacturing and installation costs. .
De plus, le poids de l'insert 1 est réduit.In addition, the weight of insert 1 is reduced.
Selon des variantes non représentées, la fente peut avoir, par exemple, une forme en créneau ou une forme étagée. According to variants not shown, the slot can have, for example, a square shape or a stepped shape.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9914167A FR2800814B1 (en) | 1999-11-10 | 1999-11-10 | FIXING INSERT FOR A PLASTIC MATERIAL, ASSEMBLY COMPRISING SUCH A PART AND SUCH AN INSERT, AND MANUFACTURING METHOD THEREOF |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9914167A FR2800814B1 (en) | 1999-11-10 | 1999-11-10 | FIXING INSERT FOR A PLASTIC MATERIAL, ASSEMBLY COMPRISING SUCH A PART AND SUCH AN INSERT, AND MANUFACTURING METHOD THEREOF |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2800814A1 true FR2800814A1 (en) | 2001-05-11 |
FR2800814B1 FR2800814B1 (en) | 2002-03-01 |
Family
ID=9551993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9914167A Expired - Fee Related FR2800814B1 (en) | 1999-11-10 | 1999-11-10 | FIXING INSERT FOR A PLASTIC MATERIAL, ASSEMBLY COMPRISING SUCH A PART AND SUCH AN INSERT, AND MANUFACTURING METHOD THEREOF |
Country Status (1)
Country | Link |
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FR (1) | FR2800814B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7540816B2 (en) * | 2005-08-04 | 2009-06-02 | Tsubakimoto Chain Co. | Plastic hydraulic tensioner |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0511061A1 (en) * | 1991-04-25 | 1992-10-28 | SAGEM ALLUMAGE Société Anonyme | Plastic objject with alignment inserts |
EP0855525A1 (en) * | 1997-01-24 | 1998-07-29 | Mitsuba Corporation | Fastener insert |
-
1999
- 1999-11-10 FR FR9914167A patent/FR2800814B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0511061A1 (en) * | 1991-04-25 | 1992-10-28 | SAGEM ALLUMAGE Société Anonyme | Plastic objject with alignment inserts |
EP0855525A1 (en) * | 1997-01-24 | 1998-07-29 | Mitsuba Corporation | Fastener insert |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7540816B2 (en) * | 2005-08-04 | 2009-06-02 | Tsubakimoto Chain Co. | Plastic hydraulic tensioner |
Also Published As
Publication number | Publication date |
---|---|
FR2800814B1 (en) | 2002-03-01 |
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