Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F7/00—Vibration-dampers; Shock-absorbers
  • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
  • F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
  • B60J5/00—Doors
  • B60J5/04—Doors arranged at the vehicle sides
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
  • B60J5/00—Doors
  • B60J5/04—Doors arranged at the vehicle sides
  • B60J5/0412—Lower door structure
  • B60J5/0418—Water or sound barrier, e.g. watershields or seals between dry/wet compartment, sound or vibration dampers
• • 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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
  • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems

Definitions

• the invention is in the field of sound-damping devices for flat components.
• the US6135541A discloses a door of a motor vehicle comprising a reinforcing member, which ensures a side impact protection, on which damping elements are provided for damping of acoustic vibrations, which have a shock-absorbing adhesive and for damping of acoustic vibrations with the cover plate of the door in contact.
• the disadvantage here is the high assembly costs when using many damping elements. Also, the possible area to be damped is limited to the area of the side impact protection for mounting the damping elements.
• the object of the present invention is therefore to provide an improved sound-damping device.
• the basic idea of the invention is to use a device for reducing vibrations and / or vibrations and / or noises on preferably flat, in particular planar or curved components, for example of vehicles, which has a carrier, a damping device provided on the carrier.
• vibration zones for reducing the vibrations and / or noises and / or vibrations, wherein a plurality of damping means are provided on the carrier in order to detect a plurality of vibration and / or noise and / or vibration zones, hereinafter referred to as vibration zones, the flat components .
• the source of vibration and / or vibration would be the engine of the vehicle, whereas the vibration zone would be found on a thin-walled plate vibrated by the engine, for example, in which it is more disturbing than airborne Sound are radiated.
• a carrier By equipping a carrier at a plurality of regions with a damping means, a plurality of vibration zones of a planar component can be influenced by means of a carrier. This ensures in particular a cost-effective installation, since only a device with a carrier must be installed, with which several vibration zones can be influenced.
• the shape of the carrier is adapted to the zones of the planar component to be influenced and provided in the region of the zones with the damping means or a damping material.
• Candidate carriers may in particular be made of a metallic material.
• Aluminum supports are also conceivable.
• a plastic material is used.
• the carrier can be made of polyamide and / or nylon.
• damping means or damping material are preferably expandable materials, most preferably thermally expandable materials used.
• all inner and outer panels of a vehicle such as a door panel, a hood, a trunk lid, a vehicle roof, a floor panel, a fender, an A-pillar, a B-pillar, a C-frame, are suitable as flat components to be damped. Pillar and / or a sill.
• a device according to the invention can also be used in aviation or in mechanical and plant engineering for damping flat components.
• Another advantage is the equipment of the wearer with the damping means on the side facing the planar component of the carrier. In this way it can be ensured that the damping means safely with the sheet-like component in Come in contact.
• an expansion direction of the damping means is predetermined by such equipment of the carrier, in the direction of the flat component to be damped.
• Another advantage is the production of the support for a device according to the invention of a metallic material, in particular a material or a group of materials is conceivable from which the flat component or another component is designed, to which the carrier is attached. In this way, contact corrosion of the components with each other can be avoided.
• a production of the planar component and the carrier made of a material facilitates disposal.
• the use of a metallic material for the carrier may provide strength benefits.
• the carrier may be designed such that it reinforces the planar component and thus additionally provides a strengthening effect of the structure in addition to the carrier function for the damping means.
• the carrier may be advantageous to manufacture from a plastic material.
• a plastic material particularly advantageous is the use of a thermoplastic material. This can in particular simplify the production of such a carrier.
• a particularly lightweight carrier can be provided by the use of a plastic material.
• the use of a plastic material can have a positive effect on the corrosion resistance of the device.
• the use of a polyamide, in particular PA 6.6, has proved to be particularly advantageous as a material for the carrier.
• the damping means preferably consists of an expandable material, which is sprayed onto the support of a metallic material or a plastic material during an injection molding process.
• all damping means of the carrier are applied in an injection molding process in order to save time and costs.
• the dosage of the amount of damping material is simpler, so not too much material is applied, which would increase the cost or too little material, which would lead to a reduced damping of the sheet-like component.
• the production of the device has proven by means of a connection injection molding process and / or Biinjetechnischsspritzgussvons.
• the carrier itself can be produced with possible connection means for fixing the position and / or optionally further equipment features by injection of a thermoplastic material, in particular a polyamide, into an injection mold. The two halves of the injection mold are then pulled apart for demolding.
• a plurality of damping means in particular consisting of a thermally expansible material, can then be applied in a second suitable injection mold.
• a thermally expandable material as a damping or damping material.
• suitable polymeric base binders may be used, such as, for example, ethylene vinyl acetate copolymers (EVA), copolymers of ethylene with (meth) acrylate esters, which may still contain (meth) acrylic acid in copolymerized form, random or block copolymers of styrene with butadiene or Isoprene or its hydrogenation products.
• EVA ethylene vinyl acetate copolymers
• copolymers of ethylene with (meth) acrylate esters which may still contain (meth) acrylic acid in copolymerized form
• random or block copolymers of styrene with butadiene or Isoprene or its hydrogenation products random or block copolymers of styrene with butadiene or Isoprene or its hydrogenation products.
• SBS SIS
• SEES hydrogenation products
• the binders may also contain crosslinkers, adhesion promoters, tackifiers, plasticizers, and other auxiliaries and additives such as low molecular weight oligomers, for example, to provide sufficient propensity and expandability, these polymeric binders contain propellants
• blowing agents such as the "chemical blowing agents" which release gases by decomposition, or "physical blowing agents", ie expanding hollow spheres are examples of the former blowing agents are azobisisobutyronitrile, azodicarbonamide, di-Nitrosopentamethylenentetramin, 4.4 '-Oxybis (benzenesulfonic acid) hydrazide, diphenylsulfone-3,3'-disulfohydrazide, benzene-1,3-disulfohydrazide, p-toluenesulfonyl semicarbazide
• physical blowing agents are expandable plastic microbubble
• a damping material is suitable as a damping agent, as described in International Patent Application PCT / EP2007 / 008141.
• a damping agent as described in International Patent Application PCT / EP2007 / 008141.
• the activation and expansion of the expansible material may preferably take place by utilizing the process heat of a cathodic immersion furnace for curing the cathodic dip painting of, for example, a motor vehicle body.
• a separate effect of heat for expansion of the expandable material is conceivable.
• the carrier ensures in particular the position of the damping means on the vibration zone before fixing during expansion.
• the carrier is preferably firmly connected to the flat component or another component.
• the equipment of the carrier with fastening means for fixing the position of the device relative to the component to be damped can be provided to fasten the carrier to the component itself or to another component which is directly or indirectly connected to the component to be damped.
• the carrier may be provided in particular on a stiffening or reinforcing component, such as a side impact protector, the carrier being provided with corresponding fastening means.
• the fastening means are preferably molded in the production of the carrier made of a plastic material. In this case, in particular clips or terminals are used, which can engage in corresponding recordings at the installation.
• the equipment of the carrier by fasteners in the form of openings is conceivable to fix the carrier by protruding corresponding fasteners at the installation.
• Another advantage is the production of the carrier from a plurality of carrier parts, which are connected to each other prior to assembly at the installation of the device.
• the carrier parts can, for example, be considered individually with one or more damping agents, whereupon the carrier parts equipped with the damping means are added to provide the carrier.
• the production of multiple support parts may prove useful, for example, undercuts or other possible special features of the carrier and / or the damping means injection molding are difficult to implement.
• Another advantage is the equipment of the carrier with openings or holes in the intended areas for the damping means.
• the openings ensure a secure fixation of the damping means on the carrier.
• the damping means can be sprayed onto the carrier in such a way that the material to be damped reaches the openings in certain areas, so that a mechanical fastening can be provided.
• an expandable material as a damping means, this can expand in the expansion through the opening, so that an additional attachment of the damping means to the support is ensured after the expansion.
• this fastening can have advantages, since in this way the forces acting on the surface to be damped by the damping means can be transmitted to the support via the damping means.
• FIG. 1 is a side view of the inside of a motor vehicle door with devices according to the invention, which are used for damping the outer panel,
• FIG. 2 is a partially sectioned side view of the outside of the motor vehicle door of Figure 1
• 3 is a partially sectioned side view of the outside of a motor vehicle door with an alternative embodiment of devices according to the invention, which are used for damping the outer panel
• Fig. 4 is a sectional view through the motor vehicle door of Figure 3 along A-A
• FIG. 5 is a partial perspective view of a motor vehicle door with a further alternative of a device according to the invention, which is used for damping the outer panel,
• FIG. 6 is a partially sectioned side view of the device according to the invention from FIG. 5
• FIG. 1 shows a side view of an inside of a motor vehicle door 200, which is equipped with devices 100, 110 according to the invention.
• the motor vehicle door 200 has, as a flat component, an inner panel 201, which is connected to a further planar component, an outer panel 202.
• the outer panel 202 thereby forms part of the outer surface of the vehicle.
• the door 200 is connected to the body of the vehicle via hinges 203.
• the door 200 has a window opening 208, in which a disc, not shown, is provided.
• the inner panel 201 and the outer panel 202 surround in regions a cavity 208.
• a reinforcing member 206 is arranged, which in the present embodiment via fastening elements
• the reinforcing member 206 is mounted to the inner panel 201 and which increases the stability and strength of the door 200, and more particularly provides side impact protection for the door 200.
• the reinforcing member 206 extends obliquely within the cavity
• the outer panel 202 and the inner panel are made of thin-walled sheets which can be vibrated by moving parts of the vehicle or by a running motor, which may be in the range of the human ear. These vibrations can be radiated into the air as disturbing sound, so that within the cavity 208, two devices 100, 110 for damping the vibrations at a vibration zones and / or vibration are provided zone.
• the one device 100 is provided in the cavity 208 below the reinforcing member 206.
• the second device 110 is provided within the cavity 208 below the window opening 204.
• the device 100 has a carrier 101 made of a plastic material, in the present case of polyamide 6.6.
• the carrier 101 consists of an upper carrier region 104 which extends parallel to the reinforcing member 206 within the cavity 208.
• the support 101 On the upper support portion 104 fastening means 103 are formed, with which the support 101 is fixed to the reinforcing member 206 of the door 200. From the upper support region 104 projects from a connection support piece 106, to which a lower support portion 105 is formed.
• the support 101 thus includes the lower support portion 105, the connecting support piece 106 and the upper support portion 104 with the integrally formed fasteners 103.
• damping means not shown are provided which receive the vibrations of the outer sheet 202 and preferably convert it into heat.
• the second device 110 is provided with a carrier 11, which extends with an upper carrier area 14 substantially parallel to the underside of a frame bounding the window opening 204.
• the carrier 1 11 further comprises an angle projecting from the upper support portion 114 connecting carrier piece 1 16 and a lower support portion 115 which extends into the region of the door opening device, not shown.
• the carrier 11 1 is equipped with fastening means 1 13, with which the carrier 1 11 is attached to the outer panel 202.
• the carrier 1 has 11 damping means, not shown, which serve to damp the vibrations of the outer plate 202.
• the damping means 102, 1 12 of the devices 100, 110 may also be used for damping the inner panel 201.
• a use of the devices 100, 1 10 for other flat components of a motor vehicle, in particular the hood, the roof, the trunk lid, the fender, the remaining doors, a floor panel and / or a sill conceivable.
• FIG 2 shows a partially sectioned side view of the outside of the motor vehicle door 200 of Figure 1.
• the cavity 208 partially delimiting surface of the outer panel 202 has been omitted for clarity.
• the reinforcing member 206 Due to the omitted area of the outer panel 202 is the reinforcing member 206, which via the fasteners 207 to the inner panel 201 is mounted and seen to extend obliquely within the cavity 208.
• the fastening means 103 can be designed as clips or clamps, which preferably interact with corresponding receptacles on the reinforcing member 206.
• an adhesive bond of the carrier 101 to the reinforcing member 206 is conceivable.
• the carrier 101 is equipped with two damping means 102, wherein the first damping means 102 is provided on the upper support portion 104 and the second damping means 102 on the lower support portion 105.
• the second device 210 is provided below the window opening 204, which is preferably glued to the outer panel 202 via the fastening means 13.
• the second device 1 10 has a plurality of damping means 1 12, which influence a plurality of vibration zones of the outer panel 202.
• the dampening means 102, 112 used in the present exemplary embodiment are a thermally expanded material, in particular a material as described in the patent application PCT / EP2007 / 008141, the disclosure content of which supplements the present disclosure in this respect.
• the activation and expansion of the expandable material is preferably done by utilizing the process heat of a cathodic furnace to cure the preferably cathodic dip painting of the vehicle body and thus the vehicle door 200. This can be a step and thus time and cost can be saved because the process heat of anyway carried out method used to expand the expandable material.
• the damping means 102, 1 12 stick to the component to be damped, in the present embodiment, the outer panel 202 and absorb the vibrations of the outer panel 202 and convert them preferably into heat.
• the carriers 101, 11 1 thus serve primarily as an assembly aid and fixation possibility of the damping means 102, 112.
• the carrier 101, 1 11 may additionally be designed such that they cause a reinforcing effect, in particular of the outer panel 202.
• FIG. 3 shows a partially cutaway side view of the outside of a motor vehicle door 200 with alternative embodiments of devices according to the invention.
• gen 100, 1 10 which come to cushion the outer panel 202 are used.
• the cavity 208 partially delimiting surface of the outer plate 202 has been omitted for clarity.
• the door 200 has the reinforcing member 206 connected to the inner panel 201 on both sides via fasteners 207, which extends obliquely within the cavity 208.
• On the outer panel 202 facing side of the reinforcing member 207 is provided on the same device 100 according to the invention with the carrier 101, which is connected via fastening means 103 with the reinforcing member 206.
• the carrier 101 consists of the upper carrier region 104 and the lower carrier region 105, which is connected to the upper carrier region 104 via a connecting carrier piece 206. Via the upper carrier region 104, the device 100 is connected to the reinforcing member 206 via said attachment means 103.
• the upper carrier region 104 extends on the reinforcing component 206 and is thus arranged at least in regions between the reinforcing component 206 and the outer shell 202.
• the lower carrier region 105 is used for detecting and acting on a further vibration zone of the outer plate 202 below the reinforcing member 206.
• a plurality of damping means 102 of a thermally expandable material are provided, which after expansion with the inner wall of the outer panel 202 come into contact and, for example, stick together to achieve a damping of vibrations of the outer panel 202.
• the door 200 has a second device 110 above the first device 100 below the window opening 204.
• the carrier 11 1 of the second device 10 has an upper carrier region 14 and a lower carrier region 115, which is connected to the upper carrier region 14 via a connecting carrier piece 16.
• the carrier 11 1 is connected to the upper support portion 114 via integrally formed fastening means 113 with the outer panel 202.
• the fastening means 1 13 are configured as projecting surface regions of the carrier 1 11, which are clamped between a bent portion of the outer sheet 202.
• an attachment of the device 1 10 to the inner panel 201 is conceivable.
• damping means 112 are provided, which also here from a thermally expandable Material exist and are provided for damping the outer panel 202. Both devices 100, 110 can of course also be provided for damping the inner panel 201.
• the damping means 102, 1 12 consist of different materials.
• FIG. 4 shows a sectional view through the motor vehicle door 200 of FIG. 3, taken along the line A-A, on which, substantially inside the inner panel
• the device 100 for damping the outer panel 202 is provided. This is disposed between the reinforcing member 206 and the inner wall of the outer panel 202.
• the carrier 101 of the device 100 is connected to the reinforcing member 206 via fastening means, not shown, to fix the position of the device 100.
• the carrier 101 has a protruding region, on which a further damping means 102 is provided, which serves to influence a further vibration zone of the outer plate 202.
• the further damping means 102 is no longer disposed in the region of the reinforcing member 206.
• a disk 205 is shown, through which the window opening, not shown, can be closed.
• a disk guide 209 is provided, which projects into the cavity 208.
• the window guide 209 is connected to the outer panel 202 at a fold 210 of the outer panel 202. In this case, the disk guide 209 is clamped between the folded portion and fixed by a frictional connection.
• the window guide 209 is designed as part of the second damping device 110. It is in this case around the area of the carrier 11 1 above fasteners 113, with which the carrier 11 1 is connected to the outer panel 202.
• the connection also provides a position fixation of the carrier 11 1 with the damping means 1 12 provided thereon.
• the damping means 112 is provided on the inner wall of the outer plate 202 facing side of the carrier 11 1.
• the carrier 11 has further damping means 102, which are not visible in the sectional view or are omitted for better clarity, in order to detect a plurality of vibration zones with the second device 110.
• FIG. 5 shows a perspective view of a motor vehicle door 200 with a further alternative of a device 100 according to the invention, which is used for damping the outer panel 202 of the door 200.
• the inner panel of the door 200 has been omitted in the illustrated embodiment for the sake of clarity.
• the door 200 has the reinforcing member 206 which includes openings.
• the device 100 which is partially disposed between the reinforcing member 206 and the inner wall of the outer panel 202, has attachment means 103 projecting on the carrier 101 in the form of snap-connection means which can be engaged with the openings provided in the reinforcing member 206 to provide a connection between the reinforcing member 206 and Device 100 and in particular to secure the position of the device 100 disposed on the damping means 102 relative to the outer shell 202 to be damped.
• the damping means 102 are arranged between the carrier 101 and the inner wall of the outer panel 202. In this area, the carrier 101 extends substantially and at least partially parallel to the reinforcing member 206.
• the carrier 101 has an angularly protruding part which provides a connection to another part of the carrier 101, which is provided for receiving a further damping means 102.
• This second area is arranged below a door handle recess 21 1 of the door 200.
• the damping means 102 is again provided in this area on the inner wall of the outer panel 202 side facing. In this region of the carrier 101, said openings 108 of the carrier 101 can be seen. These openings 108 are also found in the other areas of the carrier 101, which are equipped with the damping means 102.
• the damping means 102 in the present embodiment an expandable material, can expand during the expansion through the openings 108, so that a fixation and / or bonding of the carrier 101 at / with the damping means 102 and / or the inner wall of the outer shell 202 and / or the reinforcing member 206 is achieved.
• the carrier 101 as a structurally reinforcing component, an additional reinforcement of the outer panel 202 can be achieved in this way.
• further fastening means 103 are provided on the part of the carrier 101 provided below the door handle recess 211. These can be used for further attachment of the device 100 to other components of the door 200.
• further damper devices may be connected to the illustrated device 100 to detect further vibratory zones.
• FIG. 6 shows a partially cutaway side view of the device 100 according to the invention from FIG. 5.
• the device 100 has the carrier 101 made of a thermoplastic material.
• the carrier 101 includes the upper support portion 104, which serves to receive the damping means 102 of an expandable material.
• hidden fastening means are provided for fastening the device 100 to a component, for example on a motor vehicle door.
• an angularly protruding connection support piece 106 is provided at the upper support portion 104. This can be equipped with a further damping means.
• connection support piece 106 connects the upper support portion 104 to a lower support portion 105, which in turn projects angularly from the connection support piece 106, but in the present embodiment is oriented in approximately the opposite direction than the upper support portion 104.
• the upper carrier region 104, the connecting carrier piece 106 and the lower carrier region 105 form the carrier 101 of the device 100.
• the lower carrier region 105 is in turn equipped with a further damping means 102.
• the openings 108 of the carrier 101 can be seen, through which the damping means 102 can expand through. Similar openings 108 may also have the upper support area 104.
• the device 100 is produced by means of a bijection injection molding process.
• the upper carrier region 104 with the integrally formed connection carrier piece 106 and the damping means 102 is produced in a separate production step as the lower carrier region 105 with the second damping means 102.
• the upper support portion 104 with the connection carrier piece 106 with the lower Carrier portion 106 connected to provide the carrier 101 and the device 100.
• connecting means 107 are formed on the connecting carrier piece 106 and corresponding receptacles for the connecting means 107 on the lower carrier region 105.
• These may be, in particular, clip or snap-on connecting elements, which are well known to the person skilled in the art.
• the carrier part 104, 105 In order to produce a carrier part 104, 105 of the carrier 101, in a first step the carrier part 104, 105 itself is produced with possible connection means 107 for fixing the position and / or optionally further equipment features, for example the openings 108 by injection of a thermoplastic material into an injection mold. The two halves of the injection mold are then pulled apart for removal from the mold. In a second step, the damping means 102 can then be applied in a second suitable injection mold by injection in a second injection molding process.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Aviation & Aerospace Engineering (AREA)
• Body Structure For Vehicles (AREA)
• Vibration Prevention Devices (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41650419

Family Applications (1)

Country Status (9)

Families Citing this family (7)

Citations (1)

Family Cites Families (18)

• 2009
  • 2009-02-26 DE DE102009010439A patent/DE102009010439A1/de not_active Withdrawn
  • 2009-11-27 CN CN2009801574072A patent/CN102326011A/zh active Pending
  • 2009-11-27 RU RU2011139122/11A patent/RU2011139122A/ru unknown
  • 2009-11-27 JP JP2011551421A patent/JP2012518767A/ja active Pending
  • 2009-11-27 BR BRPI0924281A patent/BRPI0924281A2/pt not_active IP Right Cessation
  • 2009-11-27 WO PCT/EP2009/065988 patent/WO2010097129A1/de active Application Filing
  • 2009-11-27 EP EP09760870A patent/EP2401519A1/de not_active Ceased
  • 2009-11-27 KR KR1020117019976A patent/KR20110119769A/ko not_active Application Discontinuation
• 2011
  • 2011-08-24 US US13/216,674 patent/US20110303503A1/en not_active Abandoned

Patent Citations (1)

Non-Patent Citations (1)

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