FR2980429A1 - Method for manufacturing plastic panel used to protect e.g. side door of car from shocks, involves defining cell by wall spacing zones, where cell is filled with air and delimited by sealed mechanical connection formed by laser welding line - Google Patents

Method for manufacturing plastic panel used to protect e.g. side door of car from shocks, involves defining cell by wall spacing zones, where cell is filled with air and delimited by sealed mechanical connection formed by laser welding line Download PDF

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Publication number
FR2980429A1
FR2980429A1 FR1158516A FR1158516A FR2980429A1 FR 2980429 A1 FR2980429 A1 FR 2980429A1 FR 1158516 A FR1158516 A FR 1158516A FR 1158516 A FR1158516 A FR 1158516A FR 2980429 A1 FR2980429 A1 FR 2980429A1
Authority
FR
France
Prior art keywords
wall
flexible
rigid
cell
walls
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
FR1158516A
Other languages
French (fr)
Other versions
FR2980429B1 (en
Inventor
Matteo Missiroli
Dimitri Deydier
Sebastien Colin
Eddy Pennerath
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.)
PSA Automobiles SA
Rehau SAS
Original Assignee
Peugeot Citroen Automobiles SA
Rehau SAS
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
Priority to FR1158516A priority Critical patent/FR2980429B1/en
Application filed by Peugeot Citroen Automobiles SA, Rehau SAS filed Critical Peugeot Citroen Automobiles SA
Priority to ES12766620.4T priority patent/ES2583805T3/en
Priority to BR112014005867A priority patent/BR112014005867A2/en
Priority to PCT/EP2012/068253 priority patent/WO2013041489A1/en
Priority to RU2014116121/11A priority patent/RU2568520C2/en
Priority to EP12766620.4A priority patent/EP2758280B1/en
Priority to CN201280057878.8A priority patent/CN103958277B/en
Publication of FR2980429A1 publication Critical patent/FR2980429A1/en
Application granted granted Critical
Publication of FR2980429B1 publication Critical patent/FR2980429B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1674—Laser beams characterised by the way of heating the interface making use of laser diodes
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B29C66/712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311—Thermal properties
    • B29C66/73111—Thermal expansion coefficient
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7315—Mechanical properties
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B29C2045/1678—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part first moulding the soft material
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/58—Snap connection
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/234—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being in the form of tessellations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • 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
    • B29K2995/0037—Other properties
    • B29K2995/0082—Flexural strength; Flexion stiffness

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Body Structure For Vehicles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The method involves molding a transparent rigid plastic wall (2) and an opaque flexible plastic wall (3) whose flexible material contains laser additives such as antimony dioxide or carbon black. The flexible plastic wall is applied against the rigid plastic wall such that the walls are in contact with each other in wall contacting zones (4) that surround wall spacing zones in which the walls are spaced from one another. A cell (5) is defined by the spacing zones, where the cell is filled with air and delimited by a sealed mechanical connection (7) formed by a laser welding line. An independent claim is also included for a plastic protection panel to be fixed on a body part of a car.

Description

PROCEDE DE FABRICATION D'UN PANNEAU DE PROTECTION DESTINE A ETRE FIXE SUR UNE PARTIE DE LA CARROSSERIE D'UN VEHICULE AUTOMOBILE ET PANNEAU AINSI OBTENU. METHOD FOR MANUFACTURING A PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE AND A PANEL THUS OBTAINED

La présente invention concerne un procédé de fabrication d'un panneau de protection destiné à être fixé sur une partie de la carrosserie d'un véhicule. Les portes latérales des véhicules automobiles sont souvent équipées de baguettes de protection qui sont censées protéger ces portes à l'égard de petits chocs urbains, tels que les chocs de portes latérales, et de caddies. Du fait de leur faible largeur, ces baguettes ont une fonction de protection qui est très réduite. Certains véhicules sont équipés de bandeaux latéraux présentant une grande largeur. Ces bandeaux sont en matière plastique rigide et ne présentent pas la capacité de se déformer sous l'effet d'un petit choc urbain. De ce fait, l'énergie d'impact en cas de choc d'un chariot de supermarché ou d'un choc poteau est transmise intégralement à la portière. Ce bandeaux présentent tout au plus l'avantage qu'en cas d'éraflures, ils évitent d'avoir à repeindre la totalité d'une porte ou d'une aile du véhicule. Les déposants ont proposé un panneau de protection en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile et comprenant une paroi en matière plastique rigide et une paroi en matière plastique souple, ces deux parois étant en contact l'une avec l'autre dans des zones qui entourent des zones dans lesquelles ces deux parois sont espacées l'une de l'autre. Ces zones dans lesquelles les deux parois sont espacées définissent entre elles une zone remplie d'air, chaque zone remplie d'air étant délimitée par une liaison étanche entre la paroi souple et la paroi rigide. On améliore ainsi de manière très avantageuse la protection en adoptant un panneau de protection constitué d'un tel support rigide (paroi rigide) et d'une peau souple (paroi souple), comportant des cellules d'air étanches. La peau souple constituant la partie extérieure de la bulle d'air est bombée vers l'extérieur véhicule et l'air emprisonné de façon étanche dans la cellule d'air joue un rôle d'amortisseur. Sous l'impact, la pression d'air augmente progressivement. La matière souple possédant de bonnes caractéristiques élastiques s'allonge sous cette pression. Cela permet d'absorber l'énergie de l'impact provoqué par le choc. La résistance opposée par la cellule d'air augmente progressivement jusqu'au moment où la peau souple vient buter contre la paroi support rigide. The present invention relates to a method of manufacturing a protective panel for attachment to a portion of the body of a vehicle. The side doors of motor vehicles are often equipped with protective rods that are supposed to protect these doors against small urban shocks, such as side door shocks, and caddies. Due to their small width, these rods have a protection function which is very small. Some vehicles are equipped with side bands having a large width. These bands are rigid plastic and do not have the ability to deform under the effect of a small urban shock. As a result, impact energy in case of impact of a supermarket trolley or post shock is transmitted integrally to the door. These bands have at most the advantage that in case of scratches, they avoid having to repaint the entire door or wing of the vehicle. The applicants have proposed a plastic protection panel intended to be fixed on a part of the bodywork of a motor vehicle and comprising a rigid plastic wall and a flexible plastic wall, both of these walls being in contact with each other. with each other in areas that surround areas in which these two walls are spaced from each other. These zones in which the two walls are spaced define between them a zone filled with air, each air-filled zone being delimited by a tight connection between the flexible wall and the rigid wall. Protection is thus very advantageously improved by adopting a protective panel consisting of such a rigid support (rigid wall) and a flexible skin (flexible wall), comprising airtight air cells. The flexible skin constituting the outer portion of the air bubble is bulged outwardly vehicle and air trapped tightly in the air cell plays a role of damper. Under the impact, the air pressure increases gradually. The flexible material having good elastic characteristics elongates under this pressure. This absorbs the energy of the impact caused by the shock. The resistance opposed by the air cell gradually increases until the flexible skin abuts against the rigid support wall.

Ces cellules remplies d'air doivent être parfaitement étanches y compris pendant l'impact, et par conséquent, la liaison mécanique réalisée entre la paroi souple et la paroi rigide doit suffisamment solide. Cette résistance doit être supérieure à la contrainte provoquée par l'augmentation de pression. These cells filled with air must be perfectly sealed even during the impact, and therefore, the mechanical connection made between the flexible wall and the rigid wall must be sufficiently solid. This resistance must be greater than the stress caused by the increase in pressure.

La présente invention a donc pour but de proposer un procédé de fabrication d'un tel panneau permettant en particulier de réaliser de manière simple et fiable la liaison entre les parois du panneau pour définir les cellules étanches. A cet effet, l'invention concerne un procédé de fabrication d'un panneau de protection en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile, comprenant une paroi en matière plastique rigide et une paroi en matière plastique souple, ces deux parois étant en contact l'une avec l'autre dans des zones qui entourent des zones dans lesquelles ces deux parois sont espacées l'une de l'autre, comprenant les étapes consistant : à réaliser par moulage les deux parois, l'une en une première matière plastique pour former la paroi rigide et l'autre en une deuxième matière plastique pour former la paroi souple, puis à appliquer la paroi souple contre la paroi rigide de sorte que ces deux parois soient en contact l'une avec l'autre dans les zones entourant des zones dans lesquelles elles sont espacées, lesdites zones définissant une cellule remplie d'air délimitée par une liaison mécanique réalisée par une ligne de soudage laser formant ainsi une liaison étanche. The present invention therefore aims to provide a method of manufacturing such a panel in particular to achieve a simple and reliable way the connection between the walls of the panel to define the sealed cells. To this end, the invention relates to a method of manufacturing a plastic protection panel intended to be fixed on a part of the bodywork of a motor vehicle, comprising a rigid plastic wall and a plastic wall. flexible, these two walls being in contact with each other in areas which surround areas in which these two walls are spaced apart from each other, comprising the steps of: molding the two walls, one in a first plastic material to form the rigid wall and the other in a second plastic material to form the flexible wall, then to apply the flexible wall against the rigid wall so that these two walls are in contact with one another; with the other in the zones surrounding zones in which they are spaced, said zones defining an air-filled cell delimited by a mechanical connection made by a laser welding line thus forming a tight connection.

De manière avantageuse, la paroi souple est assemblée sur toute la zone périphérique à la paroi rigide à l'aide d'une liaison réalisée par procédé de soudage laser. De préférence, on réalise également un soudage laser pour assembler les parois souple et rigide dans les zones où elles sont en contact selon des lignes de soudage. Ainsi, la paroi en matière plastique souple comporte des zones présentant une forme bombée définissant avec la paroi rigide des cellules emprisonnant de l'air, la liaison au soudage laser entre les deux parois assurant l'étanchéité des cellules de sorte qu'elles sont déformables en cas de choc de type urbain sans risque de rupture de l'étanchéité de la cellule. Lors d'un tel choc, la paroi souple peut se déformer sans être endommagée, ni même éraflée. Advantageously, the flexible wall is assembled over the entire peripheral area to the rigid wall by means of a connection made by laser welding process. Preferably, a laser welding is also performed to assemble the flexible and rigid walls in the areas where they are in contact along welding lines. Thus, the flexible plastic wall comprises zones having a curved shape defining with the rigid wall cells trapping air, the connection to the laser welding between the two walls sealing the cells so that they are deformable in case of urban type shock without risk of breaking the tightness of the cell. In such an impact, the flexible wall can deform without being damaged or even scratched.

De plus, ces zones peuvent être réparties sur le panneau de protection de façon à former un motif esthétique. Ainsi, une partie prépondérante de la surface du panneau est deformable en cas de choc, ce qui lui confère une capacité optimale de protection. Dans les zones dans lesquelles la paroi en matière plastique souple présente des surfaces convexes dirigées vers l'extérieur, celles-ci sont soit sous forme de bulle de section circulaire soit sous forme d'une bulle allongée ou toute autre forme appropriée comme une alvéole. Ainsi, selon le procédé de l'invention, on moule par injection la première matière plastique pour former une paroi souple présentant des zones de surface bombées. On peut également réaliser un moulage par injection de la 30 seconde matière plastique pour former la paroi rigide. Cette paroi rigide peut alors présenter des zones bombées disposées sur la paroi de manière à être en regard d'une zone de surface bombée de la paroi souple. On réalise ensuite l'assemblage des deux parois en réalisant un soudage au laser en particulier autour desdites cellules ainsi formées. De manière à favoriser le soudage au laser, les deux parois sont plaquées l'une contre l'autre avec un serrage suffisant dans la zone de soudage. De préférence, on applique une pression locale comprise entre 0,5 et 40 bars et ce, au plus près de la ligne de soudage. La matière plastique souple servant à réaliser la paroi souple du panneau est à l'extérieur et est choisie opaque. Le support rigide est réalisé dans une matière transparente permettant au faisceau laser de la traverser jusqu'à la matière opaque. Ainsi, une fois la matière plastique transparente traversée, le faisceau laser arrive au contact de la matière opaque de la paroi souple et provoque un échauffement local de ladite matière du panneau souple. Le placage sous pression des deux parois permet une transmission de la chaleur à la paroi rigide et lors du refroidissement intervenant après le passage du faisceau, les deux matières ont été fixées. Ainsi, la matière plastique souple doit présenter une transmission du faisceau laser nulle, elle doit donc être totalement opaque. En effet, si une transmission survenait une partie de l'énergie apportée par le laser traverserait la peau souple ou échaufferait celle-ci à coeur et non uniquement en surface, ce qui perturberait la qualité de la liaison obtenue entre la paroi souple et la paroi rigide. In addition, these areas can be distributed over the protective panel so as to form an aesthetic pattern. Thus, a preponderant part of the surface of the panel is deformable in case of shock, which gives it an optimal capacity of protection. In areas in which the flexible plastic wall has outwardly convex surfaces, these are either in the form of a circular-section bubble or in the form of an elongated bubble or any other shape suitable as a cell. Thus, according to the method of the invention, the first plastic material is molded by injection to form a flexible wall having curved surface areas. Injection molding of the second plastic material can also be performed to form the rigid wall. This rigid wall may then have curved areas disposed on the wall so as to be facing a curved surface area of the flexible wall. The two walls are then assembled by laser welding, in particular around said cells thus formed. In order to favor laser welding, the two walls are pressed against each other with sufficient tightening in the welding zone. Preferably, a local pressure of between 0.5 and 40 bars is applied, as close as possible to the welding line. The flexible plastic material used to make the flexible wall of the panel is outside and is chosen opaque. The rigid support is made of a transparent material allowing the laser beam to pass through to the opaque material. Thus, once the transparent plastic material passes through, the laser beam comes into contact with the opaque material of the flexible wall and causes a local heating of said material of the flexible panel. The pressure plating of the two walls allows a transmission of heat to the rigid wall and during cooling after the passage of the beam, the two materials were fixed. Thus, the flexible plastic material must have a transmission of zero laser beam, it must be completely opaque. Indeed, if a transmission occurs a portion of the energy provided by the laser would pass through the flexible skin or heat it to the heart and not only at the surface, which would disrupt the quality of the bond obtained between the flexible wall and the wall rigid.

On choisit de préférence une matière plastique souple dont la transmission est comprise dans la plage de 0 à 10%. De manière à assurer cette opacité, la matière souple peut contenir des additifs-laser (dioxyde d'antimoine, noir de carbone, etc ...) Cette matière souple est de préférence choisie parmi un polyuréthane thermoplastique (TPU) aromatique pour les teintes foncées, un TPU aliphatiques pour toutes les autres teintes, un polychlorure de vinyle (PVC) souple ou semi-rigide un copolymère SEBS (styrène-ethylène-butylènestyrène), un silicone (SIK). A flexible plastic material whose transmission is in the range of 0 to 10% is preferably chosen. In order to ensure this opacity, the flexible material may contain laser additives (antimony dioxide, carbon black, etc.). This flexible material is preferably chosen from an aromatic thermoplastic polyurethane (TPU) for dark shades. , an aliphatic TPU for all other colors, a polyvinyl chloride (PVC) flexible or semi-rigid a copolymer SEBS (styrene-ethylene-butylenestryne), a silicone (SIK).

Ces matières présentent en outre l'avantage de présenter un toucher souple et agréable comme à l'intérieur des véhicules, une impression de protection (effet amortisseur caoutchouc), une bonne résistance aux rayures, une matière auto-cicatrisante, un effet de protection du véhicule par absorption d'énergie, un aspect extérieur mat possible. De plus, si on choisit une teinte différente de celle de la carrosserie du véhicule sur lequel le panneau doit être fixé, on peut obtenir un effet visuel bi-ton. Par ailleurs, la matière plastique constituant la paroi souple doit également présenter des caractéristiques physiques telles qu'une résistance à la rayure, une nettoyabilité, une résistance aux UV, une résistance mécanique dans une plage de température allant de -30°C à +85°C. La matière plastique pour constituer la paroi rigide doit être compatible avec la matière de la paroi souple pour rendre possible un soudage au laser. Elle est choisie parmi le polypropylène (PP), l'acrylonitrile butadiène styrène (ABS), un alliage de Polycarbonate (PC)/ABS. These materials also have the advantage of having a soft and pleasant feel as inside the vehicles, a protective impression (rubber damping effect), good scratch resistance, a self-healing material, a protective effect of the vehicle by energy absorption, a matte appearance possible. In addition, if one chooses a shade different from that of the body of the vehicle on which the panel must be fixed, one can obtain a two-tone visual effect. Moreover, the plastic constituting the flexible wall must also have physical characteristics such as a scratch resistance, a cleanability, a UV resistance, a mechanical resistance in a temperature range from -30 ° C to +85 ° C. The plastic material for forming the rigid wall must be compatible with the material of the flexible wall to make possible laser welding. It is selected from polypropylene (PP), acrylonitrile butadiene styrene (ABS), an alloy of Polycarbonate (PC) / ABS.

La matière plastique pour la paroi rigide doit également posséder de bonnes caractéristiques mécaniques, notamment une résistance au chocs y compris à basse température, une résistance en température ( module de Young et résistance à la traction ) à 85°C, un faible coefficient de dilatation afin de garantir les jeux et affleurements ainsi qu'une bonne injectabilité. The plastic for the rigid wall must also have good mechanical properties, including impact resistance including low temperature, temperature resistance (Young's modulus and tensile strength) at 85 ° C, a low coefficient of expansion to guarantee play and outcrop as well as good injectability.

Selon un autre aspect, l'invention concerne également un véhicule automobile comportant au moins un panneau de protection obtenu selon le procédé de l'invention fixé sur une partie de sa carrosserie qui est exposée à des chocs. According to another aspect, the invention also relates to a motor vehicle comprising at least one protective panel obtained according to the method of the invention attached to a part of its body which is exposed to shocks.

Selon une variante, ledit panneau de protection est fixé sur une partie de la carrosserie qui comporte au moins un ajour. Cet ajour permet d'alléger la partie de la carrosserie sur laquelle le panneau de protection est fixé Dans une version préférée de l'invention, ledit panneau de protection est fixé sur chacune des portes latérales du véhicule. Ce panneau de protection peut également être fixé sur l'avant et/ou l'arrière du véhicule. According to a variant, said protective panel is fixed on a part of the bodywork which comprises at least one aperture. This opening makes it possible to lighten the part of the body on which the protective panel is fixed. In a preferred version of the invention, the said protective panel is fixed on each of the lateral doors of the vehicle. This protection panel can also be attached to the front and / or rear of the vehicle.

Selon une forme de réalisation préférée, un évent est ménagé dans la paroi rigide au niveau de chaque cellule, cet évent étant dimensionné pour ne pas laisser s'échapper de l'air en cas de choc ou d'effort rapide sur la cellule tout en permettant un échappement et une entrée d'air lors de variation de pression interne dans la cellule sous l'effet de variations thermiques. According to a preferred embodiment, a vent is provided in the rigid wall at the level of each cell, this vent being dimensioned so as not to allow air to escape in the event of impact or rapid force on the cell while allowing an escape and an air inlet during variation of internal pressure in the cell under the effect of thermal variations.

On décrira maintenant l'invention plus en détail en référence au dessin dans lequel : La figure 1 représente une vue en coupe d'un panneau fabriqué selon le procédé de l'invention au niveau d'une cellule et ; la figure 2 représente schématiquement le procédé de soudage laser. Un panneau 1 selon l'invention comporte une paroi en matière plastique rigide 2 et une paroi en matière plastique souple 3. Ces deux parois 2, 3 sont en contact l'une avec l'autre dans des zones 4 qui entourent des zones 5 dans lesquelles la paroi souple 3 est bombée 31 en saillie vers l'extérieur du panneau 1 et la paroi 2 en matière plastique rigide présente une surface convexe 21 orientée dans une direction opposée à celle de la paroi 2 en matière plastique souple. Pour former une cellule C, on réalise une liaison étanche 7 entre la paroi souple 3 et la paroi rigide 2 autour de la cellule C ainsi définie. La paroi 3 est obtenue par moulage par injection d'une matière plastique souple dans un moule rotatif, cette matière pouvant être un polyuréthane thermoplastique (TPU). Cette première matière plastique est destinée à 10 former la paroi souple du panneau et est pourvue de zones bombées 31. On dépose sur la paroi souple ainsi formée la paroi en matière plastique rigide également issue de moulage par injection. La paroi 2 présente des surfaces bombées 21 ainsi qu'un réseau de nervures 22 de renforcement. 15 Ces nervures de renforcement 22 augmentent la rigidité du panneau et garantissent une résistance suffisante aux efforts externes et aux chocs. Ces nervures 22 s'étendent de la face interne du panneau jusqu'à quelques millimètres de la tôle sur laquelle le panneau est placé. Ainsi, si le panneau a 20 une épaisseur de 2,5 mm, les nervures 22 ont une épaisseur légèrement inférieure à 2,5 mm. La liaison étanche 7 étant réalisée à l'aide d'un soudage laser, les nervures 22 ne sont pas présentes dans les zones de soudage. En effet, lors d'un tel 25 soudage, le rayon laser 10 doit traverser une paroi d'épaisseur constante, afin de garantir une soudure homogène. La présence d'une nervure 22 provoquerait une modification de la transparence et ainsi de la température de soudage, aussi prévoit-on de laisser libre la zone de soudage laser. 30 Toutefois pour que cette interruption de nervure ne provoque pas d'affaiblissement du panneau, on réalise des cuvettes 23 sur le panneau rigide 2, notamment dans les zones des cellules C. Ces cuvettes 23 rigidifient localement le panneau 3. 2 98042 9 8 La matière plastique rigide est telle que de l'acrylonitrile butadiène styrène (ABS) chimiquement compatible avec le TPU de la paroi souple ou encore de manière préférée un alliage de PC(polycarbonate)/ABS présentant un 5 pourcentage de PC de l'ordre de 65%. . Une fois, les parois 2, 3 reposant l'une sur l'autre, les zones bombées 21 en regard des zones bombées 31, on réalise la liaison étanche 7 par un soudage au laser. The invention will now be described in more detail with reference to the drawing in which: Figure 1 shows a sectional view of a panel manufactured according to the method of the invention at a cell and; Figure 2 shows schematically the laser welding process. A panel 1 according to the invention comprises a rigid plastic wall 2 and a flexible plastic wall 3. These two walls 2, 3 are in contact with one another in zones 4 which surround zones 5 in which the flexible wall 3 is curved 31 projecting outwardly of the panel 1 and the wall 2 of rigid plastic material has a convex surface 21 oriented in a direction opposite to that of the wall 2 of flexible plastic material. To form a cell C, a sealed connection 7 is made between the flexible wall 3 and the rigid wall 2 around the cell C thus defined. The wall 3 is obtained by injection molding of a flexible plastic material in a rotary mold, this material may be a thermoplastic polyurethane (TPU). This first plastic material is intended to form the flexible wall of the panel and is provided with curved zones 31. The rigid wall thus formed is deposited on the wall made of rigid plastic material also produced by injection molding. The wall 2 has curved surfaces 21 and a network of reinforcing ribs 22. These reinforcing ribs 22 increase the rigidity of the panel and ensure sufficient resistance to external forces and shocks. These ribs 22 extend from the inner face of the panel to a few millimeters of the sheet on which the panel is placed. Thus, if the panel has a thickness of 2.5 mm, the ribs 22 have a thickness slightly less than 2.5 mm. Since the sealed connection 7 is made using laser welding, the ribs 22 are not present in the welding zones. Indeed, during such welding, the laser beam 10 must pass through a wall of constant thickness, to ensure a homogeneous weld. The presence of a rib 22 would cause a change in transparency and thus the welding temperature, so it is expected to leave the laser welding area free. However, for this interruption of the rib does not cause weakening of the panel, the bowls 23 are made on the rigid panel 2, especially in the areas of the cells C. These cups 23 locally stiffen the panel 3. 2 98042 9 8 The rigid plastic material is such that acrylonitrile butadiene styrene (ABS) chemically compatible with the TPU of the flexible wall or preferably PC (polycarbonate) / ABS alloy having a percentage of PC of the order of 65 %. . Once, the walls 2, 3 resting on one another, the curved zones 21 facing the curved zones 31, is made the sealed connection 7 by laser welding.

La matière plastique formant la paroi rigide 2 est transparente de manière à se laisser traverser par le faisceau du laser 10 qui vient buter contre la paroi souple 3 qui, elle, est opaque. The plastic forming the rigid wall 2 is transparent so as to be passed through by the laser beam 10 which abuts against the flexible wall 3, which itself is opaque.

Ainsi, l'ABS choisi présente une transmission de 100% du faisceau laser tandis que le TPU est opaque vis-à-vis du laser. A l'interface entre les deux matières, il se crée un échauffement qui génère une liaison mécanique des deux matières. Cette liaison 7 est étanche. Thus, the ABS selected has a transmission of 100% of the laser beam while the TPU is opaque to the laser. At the interface between the two materials, a heating is created which generates a mechanical connection of the two materials. This connection 7 is waterproof.

De préférence, la température de soudage est choisie dans une plage de 200 à 300°C, la vitesse de soudage est choisie dans une plage de 10 à 50 mm / sec pour une puissance laser comprise entre 60 et 300 W. On utilise un laser à diodes 10 dont la longueur d'onde est de 800 à 1000 nm, le contrôle de température s'effectuant en boucle fermée, la puissance délivrée étant ainsi asservie. De préférence, la largeur de cordon de soudage est comprise entre 3 et 15 mm. La matière plastique souple servant à réaliser la paroi souple 3 du panneau est à l'extérieur et est choisie opaque. Le support ou paroi rigide 2 est réalisé dans une matière transparente permettant au faisceau laser 10 de la traverser jusqu'à la matière opaque. Preferably, the welding temperature is chosen in a range of 200 to 300 ° C, the welding speed is chosen in a range of 10 to 50 mm / sec for a laser power between 60 and 300 W. A laser is used with diodes 10 whose wavelength is 800 to 1000 nm, the temperature control being carried out in closed loop, the power delivered being thus enslaved. Preferably, the welding bead width is between 3 and 15 mm. The flexible plastic material used to make the flexible wall 3 of the panel is outside and is opaque. The support or rigid wall 2 is made of a transparent material allowing the laser beam 10 to pass through to the opaque material.

Ainsi, une fois la matière plastique transparente 2 traversée, le faisceau laser 10 arrive au contact de la matière opaque de la paroi souple 3 et provoque un échauffement local 11 de ladite matière du panneau souple 3. Le placage sous pression des deux parois 2, 3 permet une transmission de la chaleur à la paroi rigide 2 et lors du refroidissement intervenant après le passage du faisceau 10, les deux matières ont été fixées. Ainsi, la matière plastique souple 3 doit présenter une transmission du faisceau laser nulle, elle doit donc être totalement opaque. En effet, si une transmission survenait une partie de l'énergie apportée par le laser 10, traverserait la paroi souple 3 ou échaufferait celle-ci à coeur et non uniquement en surface, ce qui perturberait la qualité de la liaison étanche obtenue entre la paroi souple 3 et la paroi rigide 2.15 Thus, once the transparent plastic material 2 passes through, the laser beam 10 comes into contact with the opaque material of the flexible wall 3 and causes a local heating 11 of said material of the flexible panel 3. The pressure plating of the two walls 2, 3 allows a transmission of heat to the rigid wall 2 and during cooling occurring after the passage of the beam 10, the two materials were fixed. Thus, the flexible plastic material 3 must have a zero laser beam transmission, it must be completely opaque. Indeed, if a transmission occurred a portion of the energy provided by the laser 10, would pass through the flexible wall 3 or heat it to the heart and not only at the surface, which would disrupt the quality of the sealed connection obtained between the wall flexible 3 and the rigid wall 2.15

Claims (14)

REVENDICATIONS1. Procédé de fabrication d'un panneau de protection (1) en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile, comprenant une paroi en matière plastique rigide (2) et une paroi en matière plastique souple (3), ces deux parois (2, 3) étant en contact l'une avec l'autre dans des zones qui entourent des zones dans lesquelles ces deux parois sont espacées l'une de l'autre, comprenant les étapes consistant : à réaliser par moulage les deux parois, l'une en une première matière plastique pour former la paroi rigide (2) et l'autre en une deuxième matière plastique pour former la paroi souple (3), puis à appliquer la paroi souple (3) contre la paroi rigide (2) de sorte que ces deux parois (2, 3) soient en contact l'une avec l'autre dans les zones entourant des zones dans lesquelles elles sont espacées, lesdites zones définissant une cellule (5) remplie d'air délimitée par une liaison mécanique réalisée par une ligne de soudage laser formant ainsi une liaison étanche (7). REVENDICATIONS1. A method of manufacturing a plastic protective panel (1) for attachment to a portion of the body of a motor vehicle, comprising a rigid plastic wall (2) and a flexible plastic wall (3) ), said two walls (2, 3) being in contact with each other in areas which surround areas in which said two walls are spaced from each other, comprising the steps of: molding the two walls, one into a first plastic material to form the rigid wall (2) and the other into a second plastic material to form the flexible wall (3), then to apply the flexible wall (3) against the rigid wall (2) so that these two walls (2, 3) are in contact with one another in the zones surrounding zones in which they are spaced apart, said zones defining a cell (5) filled with air delimited by a mechanical connection made by a line of souda ge laser thus forming a sealed connection (7). 2. Procédé selon la revendication 1, caractérisé en ce que la matière plastique souple est opaque et la matière plastique rigide est transparente, le faisceau laser traversant la matière rigide transparente jusqu'à la matière souple opaque et provoquant un échauffement local de ladite matière opaque, tandis qu'un placage sous pression des deux parois (2, 2. Method according to claim 1, characterized in that the flexible plastic material is opaque and the rigid plastic material is transparent, the laser beam passing through the rigid material transparent to the opaque flexible material and causing a local heating of said opaque material while a plating under pressure of the two walls (2, 3) permet une transmission de la chaleur à la paroi rigide (2) et lors du refroidissement intervenant après le passage du faisceau, les deux matières sont fixées. 3. Procédé selon l'une des revendications 1 et 2, la largeur de cordon de soudage de la liaison mécanique étanche est comprise entre 3 et 15 mm. 3) allows a transmission of heat to the rigid wall (2) and during cooling occurring after the passage of the beam, the two materials are fixed. 3. Method according to one of claims 1 and 2, the weld bead width of the sealed mechanical connection is between 3 and 15 mm. 4. Procédé selon l'une des revendications 2 et 3, caractérisé en ce que la paroi souple (3) est assemblée sur toute la zone périphérique à la paroi rigide (2) à l'aide d'une liaison (7) réalisée par procédé de soudage laser. 2 98042 9 11 4. Method according to one of claims 2 and 3, characterized in that the flexible wall (3) is assembled over the entire peripheral area to the rigid wall (2) by means of a connection (7) made by laser welding process. 2 98042 9 11 5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'on réalise un soudage laser pour assembler les parois souple (3) et rigide (2) dans les zones où elles sont en contact selon des lignes de soudage. 5 5. Method according to one of claims 1 to 4, characterized in that performs a laser welding to assemble the flexible walls (3) and rigid (2) in the areas where they are in contact along welding lines. 5 6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que les deux parois (2, 3) sont plaquées l'une contre l'autre avec un serrage suffisant dans la zone de soudage, de préférence, on applique une pression locale comprise entre 0,5 et 40 bars et ce, au plus près de la ligne de soudage. 10 6. Method according to one of claims 1 to 5, characterized in that the two walls (2, 3) are pressed against each other with a sufficient clamping in the welding zone, preferably, one applies a local pressure between 0.5 and 40 bar, and as close as possible to the welding line. 10 7. Procédé selon la revendication 2, caractérisé en ce que la matière plastique souple (3) présente une transmission comprise dans la plage de 0 à 10%. 7. Method according to claim 2, characterized in that the flexible plastic material (3) has a transmission in the range of 0 to 10%. 8. Procédé selon la revendication 7, caractérisé en ce que la matière 15 souple (3) contient des additifs-laser tels que du dioxyde d'antimoine, du noir de carbone. 8. Method according to claim 7, characterized in that the flexible material (3) contains laser additives such as antimony dioxide, carbon black. 9. Procédé selon l'une des revendications 2, 7 et 8, caractérisé en ce que la matière souple (3) est de préférence choisie parmi un polyuréthane 20 thermoplastique (TPU) aromatique pour les teintes foncées, un TPU aliphatiques pour toutes les autres teintes, un polychlorure de vinyle (PVC) souple ou semi-rigide un copolymère SEBS (styrène-ethjylène-butylènestyrène), un SIK (silicone). 25 9. Method according to one of claims 2, 7 and 8, characterized in that the flexible material (3) is preferably selected from an aromatic thermoplastic polyurethane (TPU) for dark shades, an aliphatic TPU for all others dyes, soft or semi-rigid polyvinyl chloride (PVC), an SEBS copolymer (styrene-ethylene-butylenestyrene), an SIK (silicone). 25 10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce que la matière plastique pour constituer la paroi rigide (2) compatible avec la matière de la paroi souple (3) pour un soudage au laser, est choisie parmi le polypropylène (PP), l'acrylonitrile butadiène styrène (ABS), un alliage de Polycarbonate (PC)/ABS. 30 10. Method according to one of claims 7 to 9, characterized in that the plastic material to form the rigid wall (2) compatible with the material of the flexible wall (3) for laser welding, is selected from polypropylene (PP), acrylonitrile butadiene styrene (ABS), an alloy of Polycarbonate (PC) / ABS. 30 11. Procédé selon l'une des revendications précédentes, caractérisé en ce que la température de soudage est choisie dans une plage de 200 à 300°C, la vitesse de soudage est choisie dans une plage de 10 à 50 mm / sec pour unepuissance laser comprise entre 60 et 300 W, le laser à diodes (10) utilisé présentant une longueur d'onde de 800 à 1000 nm. 11. Method according to one of the preceding claims, characterized in that the welding temperature is chosen in a range of 200 to 300 ° C, the welding speed is chosen in a range of 10 to 50 mm / sec for a laser power between 60 and 300 W, the diode laser (10) used having a wavelength of 800 to 1000 nm. 12. Procédé selon la revendication 11, caractérisé en ce que le contrôle de température s'effectue en boucle fermée, la puissance délivrée étant ainsi asservie. 12. The method of claim 11, characterized in that the temperature control is performed in a closed loop, the power output is thus enslaved. 13. Panneau de protection en matière plastique destiné à être fixé sur une partie de la carrosserie d'un véhicule automobile, comprenant une paroi en matière plastique rigide (2) et une paroi en matière plastique souple (3), ces deux parois étant en contact l'une avec l'autre dans des zones (4) qui entourent des zones (5) dans lesquelles ces deux parois (2, 3) sont espacées l'une de l'autre, lesdites zones (5) définissant une cellule remplie d'air délimitée par une liaison mécanique étanche (7) réalisée par un procédé de soudage laser selon l'une des revendications 1 à 12. 13. A protective plastic panel for attachment to a part of the body of a motor vehicle, comprising a rigid plastic wall (2) and a flexible plastic wall (3), both of which are contacting each other in zones (4) surrounding zones (5) in which these two walls (2, 3) are spaced from one another, said zones (5) defining a filled cell of air delimited by a sealed mechanical connection (7) produced by a laser welding method according to one of claims 1 to 12. 14. Panneau selon la revendication 13, caractérisé en ce qu'un évent est ménagé dans la paroi rigide (2) au niveau de chaque cellule, cet évent étant dimensionné pour ne pas laisser s'échapper de l'air en cas de choc ou d'effort rapide sur la cellule tout en permettant un échappement et une entrée d'air lors de variation de pression interne dans la cellule sous l'effet de variations thermiques. 14. Panel according to claim 13, characterized in that a vent is formed in the rigid wall (2) at each cell, this vent being sized to not allow air to escape in case of shock or rapid effort on the cell while allowing an exhaust and an air inlet when internal pressure variation in the cell under the effect of thermal variations.
FR1158516A 2011-09-23 2011-09-23 METHOD FOR MANUFACTURING A PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE AND A PANEL THUS OBTAINED Expired - Fee Related FR2980429B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR1158516A FR2980429B1 (en) 2011-09-23 2011-09-23 METHOD FOR MANUFACTURING A PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE AND A PANEL THUS OBTAINED
BR112014005867A BR112014005867A2 (en) 2011-09-23 2012-09-17 protection panel intended to be fixed to a part of the body of an automotive vehicle, the method of manufacture thereof and a vehicle equipped with such panel
PCT/EP2012/068253 WO2013041489A1 (en) 2011-09-23 2012-09-17 Protective panel to be attached onto a portion of the body of a motor vehicle, and vehicle provided with such a panel
RU2014116121/11A RU2568520C2 (en) 2011-09-23 2012-09-17 Protective panel to be secured at vehicle body part and vehicle with such panel
ES12766620.4T ES2583805T3 (en) 2011-09-23 2012-09-17 Protection panel intended to be fixed to a body part of a motor vehicle and vehicle equipped with said panel
EP12766620.4A EP2758280B1 (en) 2011-09-23 2012-09-17 Protective panel to be attached onto a portion of the body of a motor vehicle, and vehicle provided with such a panel
CN201280057878.8A CN103958277B (en) 2011-09-23 2012-09-17 Protection board, the manufacture method of this plate and assemble the vehicle of this plate

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FR1158516A FR2980429B1 (en) 2011-09-23 2011-09-23 METHOD FOR MANUFACTURING A PROTECTIVE PANEL FOR FASTENING ON A PART OF THE BODY OF A MOTOR VEHICLE AND A PANEL THUS OBTAINED

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3042456A1 (en) * 2015-10-16 2017-04-21 Peugeot Citroen Automobiles Sa PROTECTIVE PANEL WITH RELIEF FOR FIXING ON A PART OF THE BODY OF A VEHICLE

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GB256144A (en) * 1926-03-06 1926-08-05 John Levi Douglass Improvements in bumpers or collision guards for vehicles
US3169756A (en) * 1962-07-20 1965-02-16 Barberton Plastics Products In Pneumatic cushion
GB2257391A (en) * 1991-07-02 1993-01-13 Standard Products Co A hollow trim strip and its manufacture
WO2001054888A1 (en) * 2000-01-25 2001-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a lasting connection between a planar lightweight plastic component that has a quality surface and an element

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB256144A (en) * 1926-03-06 1926-08-05 John Levi Douglass Improvements in bumpers or collision guards for vehicles
US3169756A (en) * 1962-07-20 1965-02-16 Barberton Plastics Products In Pneumatic cushion
GB2257391A (en) * 1991-07-02 1993-01-13 Standard Products Co A hollow trim strip and its manufacture
WO2001054888A1 (en) * 2000-01-25 2001-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a lasting connection between a planar lightweight plastic component that has a quality surface and an element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3042456A1 (en) * 2015-10-16 2017-04-21 Peugeot Citroen Automobiles Sa PROTECTIVE PANEL WITH RELIEF FOR FIXING ON A PART OF THE BODY OF A VEHICLE

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