FR2584338A1 - Process for manufacturing optical units and optical units obtained according to the said process - Google Patents

Process for manufacturing optical units and optical units obtained according to the said process Download PDF

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Publication number
FR2584338A1
FR2584338A1 FR8510066A FR8510066A FR2584338A1 FR 2584338 A1 FR2584338 A1 FR 2584338A1 FR 8510066 A FR8510066 A FR 8510066A FR 8510066 A FR8510066 A FR 8510066A FR 2584338 A1 FR2584338 A1 FR 2584338A1
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FR
France
Prior art keywords
crystal element
cover
window
optical units
intended
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
FR8510066A
Other languages
French (fr)
Other versions
FR2584338B1 (en
Inventor
Jean-Paul Mauviere
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.)
Compagnie dEquipements Automobiles Axo Scintex SA
Original Assignee
Compagnie dEquipements Automobiles Axo Scintex 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 Compagnie dEquipements Automobiles Axo Scintex SA filed Critical Compagnie dEquipements Automobiles Axo Scintex SA
Priority to FR8510066A priority Critical patent/FR2584338B1/en
Priority to IT1986A05181A priority patent/IT8605181A1/en
Priority to IT05181/86A priority patent/IT1191422B/en
Priority to ES1986297095U priority patent/ES297095Y/en
Publication of FR2584338A1 publication Critical patent/FR2584338A1/en
Application granted granted Critical
Publication of FR2584338B1 publication Critical patent/FR2584338B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
    • B29C39/023—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps for making multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • B29K2995/0021—Multi-coloured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0029—Translucent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Window Of Vehicle (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

Optical units for motor vehicles. Process for manufacturing optical units of the type consisting in moulding a first coloured translucent part 1, in placing this first part 1 in a second mould in order to overmould a second coloured translucent part 2 having a different colour from the first part, by making a window intended to receive a crystal element 5 in this second part, the said second part including a catadioptric element 4, characterised in that it consists in separately moulding the crystal element 5, by extending one of its edges by means of a cover 6 corresponding to the dimensions of the catadioptric element 4 and in fixing the crystal element 5 in the window and the cover 6 to the catadioptric element 4.

Description

La présente invention vise la fabrication de blocs optiques destinés à équiper les véhicules automobiles. The present invention relates to the manufacture of optical units intended to equip motor vehicles.

L'invention vise notamment, les blocs~ optiques comprenant une partie translucide orangée, une partie translucide rouge, un élément catadioptrique rouge et une partie cristal correspondant aux feux de recul. The invention is aimed, in particular, at the optical units comprising an orange translucent part, a red translucent part, a red catadioptric element and a crystal part corresponding to the reversing lights.

En général de tels blocs optiques sont fabriqués de la façon suivante
On moule la partie translucide orange, puis on place celle-ci dans un second moule dans lequel on moule la partie translucide rouge, avec son élément catadioptrique, en ménageant une fenêtre destinée à recevoir la partie cristal.In general, such optical units are manufactured in the following manner
The orange translucent part is molded, then it is placed in a second mold in which the red translucent part, with its catadioptric element, is molded, leaving a window intended to receive the crystal part.

On place, ensuite, l'élément obtenu dans un troisième moule dans lequel on réalise la partie cristal. The element obtained is then placed in a third mold in which the crystal part is produced.

De manière que l'élément catadioptrique conserve sa fonction il est impératif que sa face pourvue des prismes réfléchissants soit à l'abri des souillures et on doit donc encore fixer sur cette face un cache translucide. In such a way that the retro-reflecting element retains its function, it is imperative that its face provided with reflective prisms is protected from dirt and therefore a translucent cover must still be fixed on this face.

On conçoit qu'une telle manière de procéder est onéreuse. Elle conduit à réaliser trois moules, chers encombrants qui immobilisent des machines importantes. It is understandable that such a procedure is expensive. It leads to the production of three molds, expensive bulky items which immobilize important machines.

L'un des buts de la présente invention est de permettre de réaliser de tels blocs d'une manière plus simple et beaucoup moins onéreuse. One of the aims of the present invention is to allow such blocks to be produced in a simpler and much less expensive manner.

Le précédé, selon l'invention, vise la fabrication de blocs optiques du type consistant à mouler une première partie translucide colorée à placer cette première partie dans un second moule pour surmouler une seconde partie translucide colorée ayant une couleur différente de la première en ménageant dans cette seconde partie une fenêtre destinée à recevoir un élément cristal, ladite seconde partie comportant un élément catadioptrique et est caractérisé en ce qu'il consiste à mouler séparément l'élément cristal en prolongeant l'un de ses bords par un couvercle corres pondant aux dimensions de l'élément catadioptrique et à fixer l'élément cristal dans la fenêtre et le couvercle sur l'élément catadioptrique. The foregoing, according to the invention, relates to the manufacture of optical blocks of the type consisting in molding a first colored translucent part to place this first part in a second mold to overmold a second colored translucent part having a color different from the first by providing in this second part a window intended to receive a crystal element, said second part comprising a catadioptric element and is characterized in that it consists in molding the crystal element separately by extending one of its edges by a cover corresponding to the dimensions of the retro-reflecting element and to fix the crystal element in the window and the cover on the retro-reflecting element.

Grâce à un tel procédé, on supprime la réalisation d'un troisième moule cher et compliqué pour réaliser l'élément cristal directement dans la fenêtre, cet élément étant réalisé à part à un prix de revient qui est beaucoups plus bas. Thanks to such a process, it eliminates the production of an expensive and complicated third mold for producing the crystal element directly in the window, this element being produced separately at a cost price which is much lower.

Dans la technique antérieure on devait, après le moulage de l'élément cristal fixer le couvercle de l'élément catadioptrique. Le procédé prévoit de fixer simultanément l'élément cristal et le couvercle ce qui est aussi simple que de fixer le couvercle seul. In the prior art, after the molding of the crystal element, the cover of the catadioptric element had to be fixed. The method provides for simultaneously fixing the crystal element and the cover which is as simple as fixing the cover alone.

L'invention vise également un bloc optique réalisé, selon le procédé, ci-dessus défini et du type comprenant une première partie translucide colorée attenante à une deuxième partie translucide colorée ayant une couleur différente de la première, cette deuxième partie présentant une fenêtre destinée à recevoir un élément cristal et un élément catadioptrique, ledit bloc optique étant caractérisé en ce qu'il comporte,fixé sur sa face interne l'élément cristal, celui-ci étant prolongé le long d'un bord par un couvercle destiné à fermer ledit élément catadioptrique. The invention also relates to an optical unit produced, according to the method defined above, and of the type comprising a first colored translucent part adjoining a second colored translucent part having a color different from the first, this second part having a window intended for receiving a crystal element and a catadioptric element, said optical unit being characterized in that it comprises, fixed on its internal face, the crystal element, the latter being extended along an edge by a cover intended to close said element catadioptric.

Suivant une caractéristique constructive particulière, la fenêtre et l'élément catadioptrique sont entourés par un bord en saillie du côté de la face interne du bloc optique et l'élément cristal, avec son couvercle, affecte une forme en cuvette pour s'emboîter le long des bords avec un rebord destiné à coopérer avec l'extrémité libre desdits bords et à être fixé à ceux-ci.  According to a particular constructive characteristic, the window and the retro-reflecting element are surrounded by a protruding edge on the side of the internal face of the optical unit and the crystal element, with its cover, takes on a bowl shape to fit along edges with a rim intended to cooperate with the free end of said edges and to be fixed thereto.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de mise en oeuvre particulier donné à titre d'exemple seulement et représenté aux dessins annexés :
Figure 1 est une vue schématique qui image les différentes phases du procédé, selon l'invention,
Figure 2 montre en perspective éclatée le bloc optique terminé.The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings:
FIG. 1 is a schematic view which images the different phases of the process, according to the invention,
Figure 2 shows in exploded perspective the finished optical unit.

Le bloc optique à réaliser et représenté à la figure 2 comprend une première partie translucide orangée 1, une partie translucide rouge 2 avec une fenêtre 3 et un élément catadioptrique 4 et un élément cristal 5. The optical unit to be produced and shown in FIG. 2 comprises a first orange translucent part 1, a red translucent part 2 with a window 3 and a catadioptric element 4 and a crystal element 5.

La partie 1 est réalisée par moulage dans un premier moule 10, puis elle est disposée dans un second moule 11 dans lequel, par son moulage, on réalise la partie 2 avec sa fenêtre 3 et son élément catadioptrique 4. Part 1 is produced by molding in a first mold 10, then it is placed in a second mold 11 in which, by its molding, part 2 is produced with its window 3 and its catadioptric element 4.

Dans un plus petit moule 12 et indépendamment des deux précédents moulages, on réalise les éléments cristal 5 ceux-ci étant prolongés, le long de l'un de leurs côtés par un couvercle 6 dont les dimensions correspondent à celles de l'élément catadioptrique 4. In a smaller mold 12 and independently of the two previous moldings, the crystal elements 5 are produced, these being extended, along one of their sides by a cover 6 whose dimensions correspond to those of the retro-reflecting element 4 .

-La fenêtre 3 comporte du côté de la face interne du bloc optique un bord 7 et l'élément catadioptrique 4 un bord 8, tandis que l'élément cristal 5 affecte une forme en cuvette pour s'insérer dans la fenêtre 3 avec un rebord 9 destiné à coopérer avec le bord 7. Le couvercle 6 est également légèrement en forme de cuvette pour s'emboîter le long du bord 8 et comporte un rebord 14 destiné à coincider avec celui-ci. -Window 3 comprises on the side of the internal face of the optical unit an edge 7 and the retro-reflecting element 4 an edge 8, while the crystal element 5 has a bowl shape to fit into window 3 with a rim 9 intended to cooperate with the edge 7. The cover 6 is also slightly bowl-shaped to fit along the edge 8 and has a flange 14 intended to coincide with the latter.

L'élément cristal 5 avec son couvercle 6 sont fixés sur les bords 7 et 8 par tous moyens appropriés collage, soudage à chaud, aux ultra-sons etc... The crystal element 5 with its cover 6 are fixed to the edges 7 and 8 by any appropriate means bonding, hot welding, ultrasonic etc ...

On conçoit que la fabrication de tels blocs optiques est simple et beaucoup moins onéreuse que la technique antérieure. It is understood that the manufacture of such optical units is simple and much less expensive than the prior art.

Bien entendu, l'invention n'est pas limitée au mode de mise en oeuvre qui vient d'être décrit et représenté. On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'invention.  Of course, the invention is not limited to the mode of implementation which has just been described and shown. Many modifications of detail can be made without departing from the scope of the invention.

Claims (1)

REVENDICATIONS 1 - Procédé de fabrication de blocs optiques du type consistant à mouler une première partie translucide colorée (1) à placer cettre première partie (1) dans un second moule (11) pour surmouler une seconde partie translucide colorée (2) ayant une couleur différente de la première en ménageant dans cette seconde partie une fenêtre destinée à recevoir un élément cristal (5), ladite seconde partie comportant un élément catadioptrique (4), caractérisé en ce quil consiste à mouler séparement l'élément cristal (5) en prolongeant l'un de ses bords par un couvercle 6 correspondant aux dimensions de l'élément catadioptrique (4) et à fixer l'élément cristal (5) dans la fenêtre et le couvercle (6) sur l'élément catadioptrique (4). 1 - Method for manufacturing optical units of the type consisting in molding a first colored translucent part (1) in placing this first part (1) in a second mold (11) to overmold a second colored translucent part (2) having a different color of the first by providing in this second part a window intended to receive a crystal element (5), said second part comprising a catadioptric element (4), characterized in that it consists in molding the crystal element (5) separately by extending the 'one of its edges by a cover 6 corresponding to the dimensions of the retro-reflecting element (4) and to fix the crystal element (5) in the window and the cover (6) on the retro-reflecting element (4). 20 Bloc optique réalisé selon le procédé de la revendication 1, et du type comprenant une prémière partie translucide colorée (1) attenante à une deuxième partie translucide colorée (2) ayant une couleur différente de la première, cette deuxième partie présentant une fenêtre (3) destinée à recevoir un élément cristal (5) et un élément catadioptrique (4) caractérisé en ce qu'il comporte fixé sur sa face interne l'élément cristal (5) celuici étant prolongé le long d'un bord par un couvercle (6) destiné à fermer ledit élément catadioptrique (4). 20 optical unit produced according to the method of claim 1, and of the type comprising a first colored translucent part (1) adjoining a second colored translucent part (2) having a color different from the first, this second part having a window (3 ) intended to receive a crystal element (5) and a catadioptric element (4) characterized in that it comprises fixed on its internal face the crystal element (5) this being extended along an edge by a cover (6 ) intended to close said retro-reflecting element (4). 30- Bloc optique, selon la revendication 2, caractérisé en ce que la fenêtre (3) et l'élément catadioptrique (4) sont entourés par un bord (7-8) en saillie du côté de la face interne du bloc optique et l'élément cristal (5), avec son couvercle (6), affecte une forme en cuvette pour s'emboîter le long des bords (7-8) avec un rebord (914) destiné à coopérer avec l'extrémité libre desdits bords et à être fixé à ceux-ci.  30- Optical unit, according to claim 2, characterized in that the window (3) and the retro-reflecting element (4) are surrounded by an edge (7-8) projecting from the side of the internal face of the optical unit and l 'crystal element (5), with its cover (6), has a bowl shape to fit along the edges (7-8) with a flange (914) intended to cooperate with the free end of said edges and to be attached to these.
FR8510066A 1985-07-02 1985-07-02 METHOD FOR MANUFACTURING OPTICAL BLOCKS AND OPTICAL BLOCKS OBTAINED, ACCORDING TO SAID METHOD Expired FR2584338B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8510066A FR2584338B1 (en) 1985-07-02 1985-07-02 METHOD FOR MANUFACTURING OPTICAL BLOCKS AND OPTICAL BLOCKS OBTAINED, ACCORDING TO SAID METHOD
IT1986A05181A IT8605181A1 (en) 1985-07-02 1986-06-17 PROCEDURE FOR THE MANUFACTURE OF OPTICAL BLOCKS FOR MOTOR VEHICLES AND OPTICAL BLOCKS OBTAINED WITH THE ABOVE PROCEDURE
IT05181/86A IT1191422B (en) 1985-07-02 1986-06-17 PROCEDURE FOR THE MANUFACTURE OF OPTICAL BLOCKS FOR VEHICLES AND OPTICAL BLOCKS OBTAINED WITH THE SAID PROCEDURE
ES1986297095U ES297095Y (en) 1985-07-02 1986-06-23 OPTICAL BLOCK INTENDED TO EQUIP AUTOMOBILE VEHICLES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8510066A FR2584338B1 (en) 1985-07-02 1985-07-02 METHOD FOR MANUFACTURING OPTICAL BLOCKS AND OPTICAL BLOCKS OBTAINED, ACCORDING TO SAID METHOD

Publications (2)

Publication Number Publication Date
FR2584338A1 true FR2584338A1 (en) 1987-01-09
FR2584338B1 FR2584338B1 (en) 1987-10-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8510066A Expired FR2584338B1 (en) 1985-07-02 1985-07-02 METHOD FOR MANUFACTURING OPTICAL BLOCKS AND OPTICAL BLOCKS OBTAINED, ACCORDING TO SAID METHOD

Country Status (3)

Country Link
ES (1) ES297095Y (en)
FR (1) FR2584338B1 (en)
IT (2) IT1191422B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110528A (en) * 1988-01-22 1992-05-05 Greenfield Nancy C Process for making sculptured interfitting pieces

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853104A (en) * 1955-11-26 1960-11-02 James Neale And Sons Ltd Improvements relating to electric lamps for road vehicles
FR2380864A1 (en) * 1977-02-18 1978-09-15 Vega Auto Products Ltd PROCESS FOR MAKING A COMPOSITE DIFFUSER GLASS FOR AN ELECTRIC LAMP SUCH AS A MOTOR VEHICLE LIGHT
EP0139275A1 (en) * 1983-10-11 1985-05-02 Nissan Motor Co., Ltd. Light assembly
FR2818081A1 (en) * 2000-12-08 2002-06-14 Thomson Marconi Sonar Sas HULL SONAR FOR NAVAL BUILDING

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853104A (en) * 1955-11-26 1960-11-02 James Neale And Sons Ltd Improvements relating to electric lamps for road vehicles
FR2380864A1 (en) * 1977-02-18 1978-09-15 Vega Auto Products Ltd PROCESS FOR MAKING A COMPOSITE DIFFUSER GLASS FOR AN ELECTRIC LAMP SUCH AS A MOTOR VEHICLE LIGHT
EP0139275A1 (en) * 1983-10-11 1985-05-02 Nissan Motor Co., Ltd. Light assembly
FR2818081A1 (en) * 2000-12-08 2002-06-14 Thomson Marconi Sonar Sas HULL SONAR FOR NAVAL BUILDING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110528A (en) * 1988-01-22 1992-05-05 Greenfield Nancy C Process for making sculptured interfitting pieces

Also Published As

Publication number Publication date
FR2584338B1 (en) 1987-10-16
IT1191422B (en) 1988-03-23
ES297095Y (en) 1989-08-01
IT8605181A0 (en) 1986-06-17
IT8605181A1 (en) 1987-12-17
ES297095U (en) 1989-01-16

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