EP4188748A1 - Système de montage d'un écran de protection acoustique au-dessus d'un moteur de véhicule automobile - Google Patents
Système de montage d'un écran de protection acoustique au-dessus d'un moteur de véhicule automobileInfo
- Publication number
- EP4188748A1 EP4188748A1 EP21752517.9A EP21752517A EP4188748A1 EP 4188748 A1 EP4188748 A1 EP 4188748A1 EP 21752517 A EP21752517 A EP 21752517A EP 4188748 A1 EP4188748 A1 EP 4188748A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- head
- housing
- size
- stud
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
-
- 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
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0884—Insulating elements, e.g. for sound insulation for mounting around noise sources, e.g. air blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
Definitions
- the invention relates to a system for mounting an acoustic protection screen above a motor vehicle engine, a stud of such a system and a screen provided with such a stud.
- a molded elastomer stud for receiving said head, said stud being integral with said zone, said stud being provided with a recessed housing for receiving said head, the opening of said housing being reduced in relation to its size and to the size of said head, so that the introduction of said head into said housing takes place with a temporary widening of said opening and that said head is blocked in said housing by returning said opening to its nominal size, said housing having a nominal size allowing it to receive in fitted contact a head of similar nominal size.
- the size of the head is variable, which can for example vary between 8 and 14 mm.
- the object of the invention is to overcome this drawback.
- the invention proposes a system for mounting an acoustic protection screen above a motor vehicle engine, said system comprising:
- a molded elastomer stud for receiving said head, said stud being integral with said zone, said stud being provided with a recessed housing for receiving said head, the opening of said housing being reduced in relation to its size and to the size of said head, so that the introduction of said head into said housing takes place with a temporary widening of said opening and that said head is blocked in said housing by returning said opening to its nominal size, said housing having a nominal size allowing it to receive in fitted contact a head of similar nominal size, the wall of said housing having at least one hook shaped like a bellows, so as to allow, by deformation of said wall at the level of said hook, an enlargement of the size said housing allowing it to accommodate a head of size greater than said nominal size.
- the size of the housing adapts to that of the head to accommodate the latter always in adjusted contact.
- a nominal housing size corresponding to a minimum head size should be chosen.
- FIG. 1a representing the case of a rod provided with a head of nominal size
- FIG. 1b representing the case of a rod provided with a head larger than the nominal size
- FIG.2 is a schematic view of a system according to a second embodiment
- FIG.3 is a schematic view of a system according to a variant of the second embodiment
- FIG.4 is a schematic perspective view of a stud according to the first embodiment.
- a system 1 for mounting an acoustic protection screen 10 above a motor vehicle engine comprising:
- a rod 2 intended to be secured to said motor, said rod projecting upwards, said rod having at its free end a head 3 projecting radially - said head being here inscribed in a substantially spherical envelope -,
- a stud 5 in molded elastomer for receiving said head said stud being integral with said zone, said stud being provided with a recess 6 for receiving said head interlocking, the opening 7 of said recess being reduced with respect to its size and to the size of said head, so that the introduction of said head into said housing is done with a temporary widening of said opening and that said head is blocked in said housing by returning said opening to its nominal size, said housing having a nominal size allowing it to receive in fitted contact a head of similar nominal size, the wall 8 of said housing having at least one hook 9 shaped like a bellows, so as to allow, by deformation of said wall at the level of said unhooked, an enlargement of the size of said housing allowing it to accommodate a head 3 of a size greater than said nominal size.
- the wall 8 has a plurality of hooks 9 - in particular two according to the embodiments shown - so that the bellows is shaped in zigzags.
- At least one - in particular two according to the embodiments shown - unhooked 9 is located at the bottom of the housing 6, that is to say opposite its opening 7.
- the screen 10 comprises a body 11 of elastically compressible molded foam, in particular polyurethane, the pad 5 being overmolded by said body, so that said body opposes resistance to deformation of the wall 8 to reinforce the anchoring of the head 3 in the housing 6.
- the stud 5 is shaped so as to have a zone forming an interlocking means 12 - here shaped in the form of a peripheral groove - fitting with a reciprocal means 13 - here shaped in the form of a peripheral projection fitting into said groove - provided in fixing zone 4.
- the reciprocal means 13 is arranged on an intermediate piece 14 - in particular made of molded plastic material - associated with the fixing zone 4.
- the screen 10 is for example derived from molding by hot compression of fibers, in particular of glass, linked together by a bonding agent, in particular phenolic, or even from injection molding of a thermoplastic material.
- a stud 5 of such a system 1 said stud being made of molded elastomer, said stud being provided with a housing 6 for receiving a head 3 of rod 2, the opening 7 of said housing being reduced by in relation to its size and to the size of said head, so that the introduction of said head into said housing takes place with a temporary widening of said opening and that said head is blocked in said housing by returning from said opening to its nominal size, said housing having a nominal size allowing it to receive in fitted contact a head 3 of similar nominal size, the wall 8 of said housing having at least one hook 9 shaped like a bellows, so as to allow, by deformation of said wall at the level of said hook, an enlargement of the size of said housing allowing it to accommodate a head 3 of a size greater
- a screen 10 equipped with at least one such stud 5 is described, said stud being associated with said screen in an attachment zone 4 provided on said screen.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2008110A FR3113010B1 (fr) | 2020-07-30 | 2020-07-30 | S ystème de montage d’un écran de protection acoustique au-dessus d’un moteur de véhicule automobile |
| PCT/EP2021/070936 WO2022023307A1 (fr) | 2020-07-30 | 2021-07-27 | Système de montage d'un écran de protection acoustique au-dessus d'un moteur de véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4188748A1 true EP4188748A1 (fr) | 2023-06-07 |
Family
ID=73013694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21752517.9A Pending EP4188748A1 (fr) | 2020-07-30 | 2021-07-27 | Système de montage d'un écran de protection acoustique au-dessus d'un moteur de véhicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230286449A1 (fr) |
| EP (1) | EP4188748A1 (fr) |
| FR (1) | FR3113010B1 (fr) |
| WO (1) | WO2022023307A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10314220C5 (de) * | 2003-03-28 | 2009-09-10 | Woco Industrietechnik Gmbh | Abdeckung für wenigstens eine Komponente in einem Motorraum eines Kraftfahrzeugs |
| DE10317305B4 (de) * | 2003-04-14 | 2006-04-13 | Carcoustics Tech Center Gmbh | Abdeckung für ein Aggregat im Motorraum eines Kraftfahrzeuges |
| FR2879149B1 (fr) * | 2004-12-14 | 2008-07-04 | Renault Sas | Plots d'ecran cache-moteur ameliores |
| EP2008883A1 (fr) * | 2007-06-29 | 2008-12-31 | Rieter Technologies AG | Fixation d'un cache moteur supérieur |
-
2020
- 2020-07-30 FR FR2008110A patent/FR3113010B1/fr active Active
-
2021
- 2021-07-27 WO PCT/EP2021/070936 patent/WO2022023307A1/fr not_active Ceased
- 2021-07-27 EP EP21752517.9A patent/EP4188748A1/fr active Pending
- 2021-07-27 US US18/018,510 patent/US20230286449A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| FR3113010B1 (fr) | 2022-09-02 |
| FR3113010A1 (fr) | 2022-02-04 |
| US20230286449A1 (en) | 2023-09-14 |
| WO2022023307A1 (fr) | 2022-02-03 |
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