FR2646800A1 - Method for producing, from opaque plastic material, water boxes having a level-reading window, and water boxes obtained - Google Patents

Method for producing, from opaque plastic material, water boxes having a level-reading window, and water boxes obtained Download PDF

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Publication number
FR2646800A1
FR2646800A1 FR8906527A FR8906527A FR2646800A1 FR 2646800 A1 FR2646800 A1 FR 2646800A1 FR 8906527 A FR8906527 A FR 8906527A FR 8906527 A FR8906527 A FR 8906527A FR 2646800 A1 FR2646800 A1 FR 2646800A1
Authority
FR
France
Prior art keywords
window
water boxes
producing
seal
level
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.)
Pending
Application number
FR8906527A
Other languages
French (fr)
Inventor
Andre Coutier
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.)
Akwel SA
Original Assignee
MGI Coutier SA
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 MGI Coutier SA filed Critical MGI Coutier SA
Priority to FR8906527A priority Critical patent/FR2646800A1/en
Publication of FR2646800A1 publication Critical patent/FR2646800A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336Coating a portion of the article, e.g. the edge of the article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336Coating a portion of the article, e.g. the edge of the article
    • B29C45/14344Moulding in or through a hole in the article, e.g. outsert moulding

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

A transparent window 1 equipped with a peripheral seal 2 is placed in the mould cavity shaped for producing the water box and the opaque material is injected for producing the wall 3 of the said box. The edge of the window 1 is thus incorporated, in a perfectly sealed manner, in a projecting frame 3a.

Description

On sait qu'aux radiateurs destinés à assurer Le refroidissement des moteurs thermiques montés sur les véhicuLes automobiles ou à poste fixe est généralement associé un réservoir de compensation ou "boîte à eau" formant vase d'expansion et réserve. Lorsqu'une telle boite est réalisée en une matière plastique transparente ou même simplement translucide,
L'utilisateur peut sans difficulté lire le niveau à travers la paroi.
It is known that with radiators intended to ensure the cooling of heat engines mounted on motor vehicles or at a fixed station, there is generally associated a compensation tank or "water box" forming an expansion tank and reserve. When such a box is made of a transparent or even simply translucent plastic material,
The user can easily read the level through the wall.

Par contre, il n'en va plus de même Lorsque pour des motifs de résistance à La pression et à la température, la boite à eau ou réservoir doit être réalisé en une matière synthétique parfaitement opaque ; en pareil cas, la lecture du niveau de liquide implique La nécessité d'ouvrir un bouchon prévu sur la boîte à eau.On the other hand, it is no longer the same When, for reasons of resistance to pressure and temperature, the water box or reservoir must be made of a perfectly opaque synthetic material; in such a case, reading the liquid level implies the need to open a stopper provided on the water box.

C'est à cet inconvénient qu'entend remédier la présente invention, en permettant la réalisation d'une boite à eau équipée d'une fenêtre de lecture autorisant le contrôle du niveau par transparence en dépit du caractère opaque de la matière synthétique qui constitue la paroi du ré servir.  It is to this drawback that the present invention intends to remedy, by making it possible to produce a water box equipped with a reading window allowing the level to be checked by transparency despite the opaque nature of the synthetic material which constitutes the wall of the refill.

L'invention a pour objet un procédé de réalisation qui consiste
- à établir en une matière translucide, préférablement transparente, une fenêtre qui comporte au niveau de sa périphérie une gorge apte à former Logement pour un joint à profil fermé ;
- å placer la fenêtre équipée de son joint à L'intérieur d'une empreinte de moulage établie au profil désiré pour la boite à eau ;
- et à injecter dans ladite empreinte une quantité appropriée de matière synthétique sous une pression propre à opérer la compression du joint périphérique.
The subject of the invention is a method of production which consists
- to establish a translucent material, preferably transparent, a window which has at its periphery a groove capable of forming a housing for a joint with closed profile;
- place the window fitted with its seal inside a molding footprint established to the desired profile for the water box;
- And injecting into said cavity an appropriate quantity of synthetic material under a pressure suitable for effecting the compression of the peripheral seal.

L'invention englobe également les boîtes à eau établies par mise en oeuvre du procédé qui précède. The invention also encompasses the water boxes established by implementing the above process.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre L'invention, les caractéristiques qu'elle présente et Les avantages qu'elle est susceptible de procurer :
Fig. 1 montre en perspective une fenêtre de lecture équipée de son joint périphérique, préalablement à sa mise en place à l'intérieur du moule.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
Fig. 1 shows in perspective a reading window equipped with its peripheral seal, prior to its installation inside the mold.

Fig. 2 représente de la même manière la fenêtre une fois incorporée à la boîte à eau. Fig. 2 shows in the same way the window once incorporated into the water box.

Fig. 3 et 4 sont des vues analogues à celles de fig. 1 et 2, mais correspondant à une variante de mise en oeuvre. Fig. 3 and 4 are views similar to those of FIG. 1 and 2, but corresponding to a variant implementation.

En fig. 1, la référence 1 désigne une plaquette en forme de fenêtre à profil rectangulaire en élévation ; cette plaquette est établie en une matière synthétique rigide, obligatoirement translucide, mais préférablement de nature transparente. Le bord de cette plaquette ou fenêtre 1 est creusée d'une gorge périphérique la à section semi-circulaire, à l'intérieur de laquelle on a logé un joint torique 2. On observera qu'un peu en retrait de chacun des deux côtés verticaux, les deux parois opposées de la fenêtre 1 présentent deux rainures rectilignes lb qui s'arrêtent à une courte distance des bords horizontaux. In fig. 1, reference 1 designates a window-shaped plate with a rectangular profile in elevation; this plate is made of a rigid synthetic material, necessarily translucent, but preferably transparent in nature. The edge of this plate or window 1 is hollowed out by a peripheral groove 1a of semi-circular section, inside which an O-ring 2 has been housed. It will be observed that a little set back from each of the two vertical sides , the two opposite walls of the window 1 have two rectilinear grooves 1b which stop a short distance from the horizontal edges.

La fenêtre 1 ainsi équipée de son joint 2 est placée à l'intérieur de l'empreinte d'un moule de conformation, empreinte qui est établie au profil général désiré pour les boites à eau à réaliser. On injecte alors dans cette empreinte une quantité appropriée de la matière synthétique opaque destinée à constituer le corps de chaque boite, et ce sous une pression suffisante pour exercer une contrainte sur le joint 2 qui se déforme de manière plus ou moins marquée. The window 1 thus equipped with its seal 2 is placed inside the imprint of a shaping mold, imprint which is established with the general profile desired for the water boxes to be produced. An appropriate quantity of the opaque synthetic material intended to constitute the body of each box is then injected into this imprint, and this under sufficient pressure to exert a stress on the seal 2 which deforms in a more or less marked manner.

On obtient de la sorte un article qui, en un point précis de sa paroi, présente l'aspect représenté à la fig. 2, en ce sens que la plaquette ou fenêtre 1 se trouve incorporée à l'interieur d'un encadrement 3a dont l'épaisseur est évidemment supérieure à celle de la paroi 3 de la boîte à eau La compression qui s'exerce sur le joint 2 assure l'étanchéité en dépit de la pression qui peut regner à l'intérieur de la boîte, étant observé que cette étanchéité est encore renforcée par les tenons opposés 3b formés par la matière qui a empli les rainures lb de la fenêtre 1 ; ces tenons 3b s'opposent en fait à toute ouverture intempestive des levures qui constituent l'encadrement 3a. An article is thus obtained which, at a precise point on its wall, has the appearance shown in FIG. 2, in the sense that the plate or window 1 is incorporated inside a frame 3a whose thickness is obviously greater than that of the wall 3 of the water box The compression which is exerted on the joint 2 provides the seal despite the pressure that may prevail inside the box, it being observed that this seal is further reinforced by the opposite studs 3b formed by the material which has filled the grooves 1b of window 1; these tenons 3b in fact oppose any untimely opening of the yeasts which constitute the frame 3a.

Il va de soi que la fenêtre I peut porter tout repère ou inscription imprimée propre à faciliter la lecture du niveau. Suivant un mode de mise en oeuvre préféré de l'invention, on peut prévoir dans l'empreinte de moulage des dépressions horizontales aptes à déterminer après surmoulage des pontets horizontaux de matière 3c reliant les deux parties verticales de l'encadrement 3a, de façon à correspondre aux niveaux maximal et minimal. It goes without saying that window I can carry any mark or printed inscription capable of facilitating the reading of the level. According to a preferred embodiment of the invention, it is possible to provide in the molding imprint horizontal depressions capable of determining after overmolding horizontal bridges of material 3c connecting the two vertical parts of the frame 3a, so as to correspond to the maximum and minimum levels.

Fig. 3 et 4 illustrent une variante de réalisationcontrmément à laquelle le joint torique 2 destiné à équiper la plaquette ou fenêtre, ici référencée 10, est logé dans une gorge 10a délimitée par l'espace séparant deux nervures 10c prévues en saillie sur l'une des faces de ladite plaquette. Ces nervures 10c s'étendent périphériquement sur tout le pourtour de la plaquette transparente 1, à une faible distance du bord de cette dernière, étant noté-que l'une d'entre elles, à savoir celle qui est tournée vers l'intérieur de ladite plaquette, est creusée d'une rainure lOb qui s'ouvre parallèlement à la face correspondante de la plaquette. Fig. 3 and 4 illustrate an alternative embodiment in which the O-ring 2 intended to equip the plate or window, here referenced 10, is housed in a groove 10a delimited by the space separating two ribs 10c provided projecting on one of the faces of said wafer. These ribs 10c extend peripherally around the entire periphery of the transparent plate 1, a short distance from the edge of the latter, it being noted that one of them, namely that which is turned towards the inside of said plate is hollowed out with a groove 10b which opens parallel to the corresponding face of the plate.

Le surmoulage s'effectue dans les mêmes conditions qu'en fig. 1 et 2, si bien qu'on obtient une boite à eau dont la paroi 13-présente un encadrement en relief 13a qui incorpore le bord de la plaquette 10, l'étanchéité étant assurée par le joint 2 à l'état plus ou moins comprime et par le tenon en saillie 13b correspondant à la rainure périphérique 10~, ledit tenon s'opposant efficacement å toute ouverture intempestive de la lèvre intérieure de l'encadrement 13a sous l'effet d'une pression interne s'exerçant suivant la flèche F de fig. 4. Overmolding takes place under the same conditions as in fig. 1 and 2, so that a water box is obtained, the wall 13 of which has a raised frame 13a which incorporates the edge of the plate 10, the seal being provided by the seal 2 in a more or less state. compresses and by the protruding tenon 13b corresponding to the peripheral groove 10 ~, said tenon effectively opposing any untimely opening of the inner lip of the frame 13a under the effect of an internal pressure acting along the arrow F of fig. 4.

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.  It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (4)

R E V E N D I C A T I O N S REVENDICATIONSR E V E N D I C A T I O N S CLAIMS 1. Procédé pour réaliser en une matière plastique opaque des boites à eau présentant une fenêtre de lecture de niveau, caractérisé en ce qu'il consiste : 1. Method for producing an opaque plastic material for water boxes having a level reading window, characterized in that it consists: - à établir en une matière translucide une fenêtre (1, 10) qui comporte au niveau de sa périphérie une gorge (la, 10a) apte à former logement pour un joint (2) à profil fermé ; - To establish a translucent material a window (1, 10) which comprises at its periphery a groove (la, 10a) capable of forming housing for a seal (2) with closed profile; - à placer la fenêtre (1, 10) équipée de son joint (2) à l'intérieur d'une empreinte de moulage établie au profil désiré pour les boites à eau ; - placing the window (1, 10) fitted with its seal (2) inside a molding imprint established at the desired profile for the water boxes; - et à injecter dans ladite empreinte une quantité appropriée de matière synthétique opaque sous une pression propre à opérer la compression du joint. - And injecting into said cavity an appropriate quantity of opaque synthetic material under a pressure suitable for effecting the compression of the joint. 2. Procédé suivant la revendication 1, caractérisé en ce qu'on fait comporter à la fenêtre des dépressions (lob, 10b) propres à déterminer des tenons en saillie (3b, 13b) s'opposant à l'ouverture intempestive des lèvres qui forment l'encadrement (3a, 13a) de la fenêtre. 2. Method according to claim 1, characterized in that the window has depressions (lob, 10b) capable of determining protruding studs (3b, 13b) opposing the untimely opening of the lips which form the window frame (3a, 13a). 3. Procédé suivant l'une quelconque des revendications 1 et 2, caractérisé en ce qu'on fait comporter à l'empreinte de moulage des rainures propres à déterminer des pontets horizontaux de matière (3c) aptes à former repères pour la lecture des niveaux maximal et minimal. 3. Method according to any one of claims 1 and 2, characterized in that the molding imprint has grooves capable of determining horizontal bridges of material (3c) capable of forming marks for reading the levels maximum and minimum. 4. Boites à eau et autres réservoirs en matière synthétique opaque, caractérisés en ce qu'ils sont réalisés par mise en oeuvre du procédé suivant l'une quelconque des revendications 1 à 3.  4. Water boxes and other tanks made of opaque synthetic material, characterized in that they are produced by implementing the method according to any one of claims 1 to 3.
FR8906527A 1989-05-12 1989-05-12 Method for producing, from opaque plastic material, water boxes having a level-reading window, and water boxes obtained Pending FR2646800A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8906527A FR2646800A1 (en) 1989-05-12 1989-05-12 Method for producing, from opaque plastic material, water boxes having a level-reading window, and water boxes obtained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8906527A FR2646800A1 (en) 1989-05-12 1989-05-12 Method for producing, from opaque plastic material, water boxes having a level-reading window, and water boxes obtained

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FR2646800A1 true FR2646800A1 (en) 1990-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125324A1 (en) * 1991-07-31 1993-02-04 Bopla Gehaeuse Systeme Gmbh Prodn. of window in casing wall - by making hole with e.g. annular groove in wall, inserting O=ring in groove, and injection moulding window into groove and flush with surfaces
EP0802031A1 (en) * 1996-04-19 1997-10-22 Schott Glaswerke Shaped body of brittle material clasped in an injection moulded plastic supporting frame and method for clasping a shaped body in a supporting frame
JP2007136868A (en) * 2005-11-18 2007-06-07 Toyota Motor Corp Method for producing molding and molding

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB659191A (en) * 1949-02-18 1951-10-17 Metal Box Co Ltd Improvements in or relating to metal containers
US2642911A (en) * 1949-06-20 1953-06-23 Jr James Clifton De Shazor Closure for containers
US2859483A (en) * 1957-01-11 1958-11-11 Roy F High Coalescence of pre-molded parts
FR2085294A1 (en) * 1970-04-07 1971-12-24 Chausson Usines Sa
US4213536A (en) * 1977-09-28 1980-07-22 Hafner & Krullmann Gmbh Container for convoluted wire or the like
DE3820814A1 (en) * 1987-06-19 1989-01-05 Minolta Camera Kk Connecting arrangement of shaped resin parts and process for connecting said shaped resin parts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB659191A (en) * 1949-02-18 1951-10-17 Metal Box Co Ltd Improvements in or relating to metal containers
US2642911A (en) * 1949-06-20 1953-06-23 Jr James Clifton De Shazor Closure for containers
US2859483A (en) * 1957-01-11 1958-11-11 Roy F High Coalescence of pre-molded parts
FR2085294A1 (en) * 1970-04-07 1971-12-24 Chausson Usines Sa
US4213536A (en) * 1977-09-28 1980-07-22 Hafner & Krullmann Gmbh Container for convoluted wire or the like
DE3820814A1 (en) * 1987-06-19 1989-01-05 Minolta Camera Kk Connecting arrangement of shaped resin parts and process for connecting said shaped resin parts

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125324A1 (en) * 1991-07-31 1993-02-04 Bopla Gehaeuse Systeme Gmbh Prodn. of window in casing wall - by making hole with e.g. annular groove in wall, inserting O=ring in groove, and injection moulding window into groove and flush with surfaces
EP0802031A1 (en) * 1996-04-19 1997-10-22 Schott Glaswerke Shaped body of brittle material clasped in an injection moulded plastic supporting frame and method for clasping a shaped body in a supporting frame
DE19615371A1 (en) * 1996-04-19 1997-10-23 Schott Glaswerke Molded body made of brittle material, encased in an overmolded plastic holding frame and method for enclosing the shaped body with the holding frame
DE19615371C2 (en) * 1996-04-19 1998-09-10 Schott Glaswerke Molded body made of glass or glass ceramic, enclosed in an overmolded plastic holding frame and method for enclosing the shaped body with the holding frame
US5944324A (en) * 1996-04-19 1999-08-31 Glaswerke, Schott Article made of brittle material encapsulated in an injection-molded plastic holding frame
JP2007136868A (en) * 2005-11-18 2007-06-07 Toyota Motor Corp Method for producing molding and molding
EP1787783A3 (en) * 2005-11-18 2008-03-19 Toyota Jidosha Kabushiki Kaisha Injection molded article production method and molded article
US8038914B2 (en) 2005-11-18 2011-10-18 Toyota Jidosha Kabushiki Kaisha Molded article production method and molded article

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