WO2003104008A1 - Dispositif d'etanchetite servant a etancheifier un element de fermeture, en particulier une porte ou une vitre d'un vehicule automobile et procede permettant d'influer sur la rigidite d'une garniture d'etancheite - Google Patents

Dispositif d'etanchetite servant a etancheifier un element de fermeture, en particulier une porte ou une vitre d'un vehicule automobile et procede permettant d'influer sur la rigidite d'une garniture d'etancheite Download PDF

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Publication number
WO2003104008A1
WO2003104008A1 PCT/EP2003/005860 EP0305860W WO03104008A1 WO 2003104008 A1 WO2003104008 A1 WO 2003104008A1 EP 0305860 W EP0305860 W EP 0305860W WO 03104008 A1 WO03104008 A1 WO 03104008A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
actuator
lip
seal
closing element
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.)
Ceased
Application number
PCT/EP2003/005860
Other languages
German (de)
English (en)
Inventor
Christian Huck
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.)
Metzeler Automotive Profile Systems GmbH
Original Assignee
Metzeler Automotive Profile Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metzeler Automotive Profile Systems GmbH filed Critical Metzeler Automotive Profile Systems GmbH
Priority to AU2003240744A priority Critical patent/AU2003240744A1/en
Publication of WO2003104008A1 publication Critical patent/WO2003104008A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60J10/00—Sealing arrangements
    • 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
    • B60J10/00—Sealing arrangements
    • B60J10/15—Sealing arrangements characterised by the material
    • B60J10/17—Sealing arrangements characterised by the material provided with a low-friction material on the surface
    • 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
    • B60J10/00—Sealing arrangements
    • B60J10/50—Sealing arrangements characterised by means for prevention or reduction of noise, e.g. of rattling or vibration of windows
    • 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
    • B60J10/00—Sealing arrangements
    • B60J10/70—Sealing arrangements specially adapted for windows or windscreens
    • B60J10/74—Sealing arrangements specially adapted for windows or windscreens for sliding window panes, e.g. sash guides
    • B60J10/79—Sealing arrangements specially adapted for windows or windscreens for sliding window panes, e.g. sash guides for flush-glass windows, i.e. for windows flush with the vehicle body or the window frame

Definitions

  • Sealing arrangement for sealing a closing element, in particular a door or a window pane
  • the invention relates to a sealing arrangement for sealing a closing element, in particular a door or a window pane of a motor vehicle.
  • the seal arrangement is provided with a seal made of an elastically deformable, incompressible material.
  • the seal can be fixed to a frame that at least partially surrounds the closing element and has at least one sealing lip that bears against the closing element.
  • the invention further relates to a method for influencing the rigidity of a seal made of an elastically deformable, incompressible material, by means of which a closing element, in particular a door or a window pane of a motor vehicle, is sealed against a frame which at least partially surrounds the closing element and which has at least one sealing lip abutting the closing element.
  • Seals that are used in vehicle construction to seal a closing element, such as a door, a window, a sliding roof or a tailgate, are subject to different requirements. In addition to a reliable sealing effect, such seals generally meet additional requirements.
  • the seal is often used to guide a window pane or to accommodate the anti-trap sensor.
  • a seal in such a way that it can be excited to vibrate, which interfere with sound waves, in order to bring about a reduction in noise in a motor vehicle.
  • DE 198 26 171 C1 describes a seal that is provided with piezo elements.
  • the piezo elements for example made of a piezoceramic material, cause the seal to be excited to an oscillation of a predetermined frequency and amplitude, in order to compensate for oscillations of the window pane of a motor vehicle caused by wind noise or engine vibrations.
  • Such an active seal makes use of the so-called inverse piezoelectric effect, which is based on the fact that piezoceramic materials deform under the action of an electrical field.
  • the reason for the deformation is that an electrical voltage applied to the piezoceramic material causes the piezoceramic material to expand in the direction of the polarity and, perpendicular to it, a contraction.
  • the deformation is primarily dependent on the piezoelectric deformation constant of the material and the field strength of the electrical field.
  • DE 43 31 790 C2 discloses a device for avoiding squeaking noises which are caused when a window pane is moved along a seal which seals the window pane.
  • the known device provides that the seal is designed as a hollow profile strip on which either a vibration damper or a vibration absorber is arranged.
  • the vibration damper can, for example, be a damping covering consisting of a highly damping elastomer, whereas the Vibration absorber can be a waveguide that derives vibrations in the seal and absorbs them.
  • the invention has for its object to develop a sealing arrangement of the type mentioned in such a way that a variable sealing effect can be achieved with external environmental influences.
  • a method for influencing the stiffness of a seal made of an elastically deformable, incompressible material is also to be specified.
  • the sealing lip is provided with an actuator made of a piezoceramic material and can be pressed against the closing element under the action of an electrical voltage applied to the actuator.
  • a sealing arrangement designed in this way adopts the inverse piezoelectric effect in order to specifically deform a sealing lip.
  • the sealing lip is not excited to vibrate but is pressed against the closing element, for example a window pane.
  • the actuator based on the inverse piezoelectric effect, stiffens the sealing lip, which significantly increases the sealing effect.
  • the stiffening of the sealing lip can be controlled by the electrical voltage applied to the actuator, so that the sealing effect can be adapted to external environmental influences.
  • the sealing arrangement according to the invention ensures variable adaptation of the stiffness of the sealing lip and thus the Sealing effect on the respective speed. The functionality of the seal is thus ensured over the entire speed range of a motor vehicle.
  • the seal has at least one retaining lip which bears against the frame and is provided with the actuator and can be pressed against the frame under the action of an electrical voltage applied to the actuator. Similar to the sealing lip, the holding lip can be stiffened in a targeted manner by the actuator in order to increase the holding force.
  • the actuator is also particularly advantageous to design the actuator as a piezoceramic film which covers at least some areas of at least one outer surface of the sealing lip and / or holding lip.
  • the design of the actuator as a piezoceramic film enables comparatively simple and inexpensive production. Piezoceramic foils can be produced with a thickness of less than 100 ⁇ m and therefore do not impair the installation space usually available for a sealing lip or holding lip.
  • a piezoceramic film offers the advantage of a large-area action on the sealing lip or holding lip, which allows a relatively high deformation to be achieved.
  • the actuator is preferably integrally connected, preferably by gluing, to the sealing lip and / or the holding lip.
  • the actuator is embedded in the sealing lip and / or the holding lip.
  • the sealing lip or holding lip can be made from a composite Material consist of pierzoceramic fibers with a diameter of usually less than 30 microns.
  • the seal advantageously has an electrically conductive region, preferably produced by coextrusion, which is connected to the actuator.
  • the electrically conductive region makes it possible to apply the voltage required for the inverse piezoelectric effect to the actuator, without the need to provide separate electrical lines.
  • the electrically conductive area can be manufactured in a relatively simple manner by coextrusion and, due to the high degree of functional integration inherent in the seal, ensures comparatively simple assembly.
  • an elastomer preferably a thermoplastic elastomer (TPE) or ethylene-propylene-diene rubber (EPDM).
  • TPE thermoplastic elastomer
  • EPDM ethylene-propylene-diene rubber
  • the sealing lip can also be excited to vibrate by the actuator.
  • the sealing lip can be used to generate vibrations which interfere with sound waves and thereby contribute to noise reduction in a manner known per se.
  • a method for influencing the stiffness of a seal made of an elastically deformable, incompressible material is sealed, by means of which a closing element, in particular a door or a window pane of a motor vehicle, is sealed against a frame which at least partially surrounds the closing element and the at least one on that Has sealing element adjacent sealing lip, proposed, which is characterized by the following method steps:
  • the sealing lip is provided with an actuator made of a piezoceramic material
  • Such a method makes use of the inverse piezoelectric effect described above in order to influence the stiffness of a sealing lip by means of a targeted deformation.
  • the method is therefore suitable for variably adapting the sealing effect of the sealing arrangement described above to external environmental influences, such as the speed of a motor vehicle.
  • the seal preferably has at least one retaining lip on the frame, the retaining lip being provided with the actuator and being pressed against the frame under the action of an electrical voltage applied to the actuator.
  • the holding force with which the seal is attached to the frame can be specifically changed.
  • Such a configuration enables, for example, a constant holding force with differently designed frames and thus a universal use of the seal.
  • FIG. 1 shows a side view of a motor vehicle
  • FIG. 2 shows a section along the section line II in FIG. 1;
  • 3a shows a perspective view of a sealing lip in the undeformed state
  • FIG. 3b shows a perspective view of the sealing lip according to FIG. 3a in the deformed state.
  • FIG. 1 shows a motor vehicle 10 which has a window pane 30.
  • the window pane 30, which represents a closing element, is enclosed by a frame 40 of the motor vehicle 10.
  • a seal 20 is attached to the frame 40, which guides the movably arranged window pane 30 and seals it against the frame 40.
  • the frame 40 is provided with projections 41, on which retaining lips 24 of the seal 20 engage.
  • the seal 20 made of an elastically deformable, incompressible material, for example EPDM, has a steel reinforcement 21 and is provided with sealing lips 22, 23.
  • the sealing lip 23 adjoins the roof of the motor vehicle 10, whereas the sealing lips 22 abut the window pane '30. Since the window pane 30 can be moved, some of the sealing lips 22 are provided with a friction-reducing flock 27.
  • some of the sealing lips 22, 23 and the holding lips 24 are provided on an outer surface 25 with an actuator 50, as for the sealing lips
  • the actuator 50 is designed as a pierzoceramic film which is glued to an outer surface 25 of the lips 22 to 24.
  • the actuator 50 is connected to an electrically conductive region 26 of the seal 20.
  • Such an electrically conductive region 26 can be manufactured in a manner known per se by means of coextrusion.
  • the electrically conductive region 26 serves to apply an electrical voltage to the actuator 50.
  • the connection of actuator 50 and electrically conductive region 26 is such that an electrical field is generated by an applied electrical voltage, which causes a deformation of the sealing lips 22 and retaining lips 24 due to the inverse piezoelectric effect inherent in the actuator 50.
  • the outer surface 25 extends in the longitudinal direction y of the sealing lip 22. The same applies to the sealing lip
  • the polarity of the electrical voltage applied to the actuator 50 is such that the electrical field generated is aligned in the longitudinal direction y.
  • the inverse piezoelectric effect caused by the actuator 50 leads above all to a contraction of the sealing lips 22, 23 and the holding lip 24 in the transverse direction z. The result of this is that, in the event of a deformation caused by the actuator 50, the sealing lips 22 are pressed against the window pane 30, the sealing lip 23 against the roof of the motor vehicle 10 and the holding lip 24 against the frame 40.
  • the sealing arrangement described above is characterized by a seal 20 which, in comparison to conventional seals, has sealing lips 22, 23 and retaining lips 24, the rigidity of which can be influenced by the actuator 50. In this way it is possible, for example, to variably adapt the sealing effect generated by the sealing lips 22, 23 to external environmental influences.
  • the suction effect that occurs at a higher speed of the motor vehicle 10 in the area of the window pane 30 can be countered with a higher rigidity of the sealing lips 22, 23, the higher rigidity being generated by the actuator 50 due to a targeted deformation of the sealing lips 22, 23 becomes.
  • the rigidity of the holding lip 24 can be changed in order to ensure, for example, a constant holding force in the case of frames 40 of different dimensions.
  • the deformation of the sealing lips 22, 23 and the holding lip 24 is based on the inverse piezoelectric effect of the actuator 50.
  • the actuator 50 can also be operated as a sensor, for example in order to determine the contact pressure of the sealing lips 22, 23.
  • the operation of the actuator 50 either in an actuator operation or in a sensor operation depends on the electrical circuitry and is therefore independent of the design of the seal 20. It is therefore easily possible to deform the sealing lips 22, 23 and to regulate the holding lip 24 by means of a control loop.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

L'invention concerne un dispositif d'étanchéité servant à étanchéifier un élément de fermeture, en particulier une porte ou une vitre (30) d'un véhicule automobile (10), ce dispositif étant pourvu d'une garniture d'étanchéité (20) produite à partir d'un matériau incompressible et élastiquement déformable. Cette garniture d'étanchéité (20) est fixée sur un cadre (40) entourant au moins partiellement l'élément de fermeture (30) et comprend au moins une lèvre d'échantéité (22) qui repose contre l'élément de fermeture (30). L'objectif de cette invention est de perfectionner un tel dispositif d'étanchéité de façon à obtenir une action étanchéifiante qui peut s'adapter de manière variable aux influences environnantes extérieures. A cet effet, ladite lèvre d'étanchéité (22) est pourvue d'un actionneur (50) constitué d'un matériau piézocéramique et peut être comprimée en direction de l'élément de fermeture (30) sous l'action d'une tension électrique appliquée sur cet actionneur (50).
PCT/EP2003/005860 2002-06-05 2003-06-04 Dispositif d'etanchetite servant a etancheifier un element de fermeture, en particulier une porte ou une vitre d'un vehicule automobile et procede permettant d'influer sur la rigidite d'une garniture d'etancheite Ceased WO2003104008A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003240744A AU2003240744A1 (en) 2002-06-05 2003-06-04 Sealing system for sealing a closing element, especially a door or a window pane of a motor vehicle, and method for influencing the rigidity of said seal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10224966.0 2002-06-05
DE10224966A DE10224966C1 (de) 2002-06-05 2002-06-05 Dichtungsanordnung zum Abdichten eines Schliesselements, insbesondere einer Tür oder einer Fensterscheibe eines Kraftfahrzeugs, und Verfahren zur Beeinflussung der Steifheit einer Dichtung

Publications (1)

Publication Number Publication Date
WO2003104008A1 true WO2003104008A1 (fr) 2003-12-18

Family

ID=29414305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/005860 Ceased WO2003104008A1 (fr) 2002-06-05 2003-06-04 Dispositif d'etanchetite servant a etancheifier un element de fermeture, en particulier une porte ou une vitre d'un vehicule automobile et procede permettant d'influer sur la rigidite d'une garniture d'etancheite

Country Status (3)

Country Link
AU (1) AU2003240744A1 (fr)
DE (1) DE10224966C1 (fr)
WO (1) WO2003104008A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1561656B1 (fr) * 2004-02-09 2011-11-30 Robert Bosch Gmbh Balai d'essuie-glace et méthode pour sa fabrication
DE102011005033B4 (de) * 2011-03-03 2021-05-12 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug mit einer Dichtungsanordnung
DE102017001119A1 (de) 2017-02-07 2018-08-09 Audi Ag Vorrichtung zur Reduzierung von Störschwingungen
EP3919714B1 (fr) * 2020-06-04 2023-05-17 Athmer OHG Joint d'étanchéité doté d'une baguette d'étanchéité mobile automatiquement et doté d'un dispositif de mesure pour la détection des déformations en traction et en compression
DE102024112062A1 (de) * 2024-04-30 2025-10-30 Bayerische Motoren Werke Aktiengesellschaft Lagerungselement für eine Lagerungseinrichtung eines öffenbaren Karosserieelements an einer Restkarosserie eines Kraftwagens sowie Lagerungseinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331790C2 (de) 1993-09-18 1996-02-08 Daimler Benz Aerospace Ag Einrichtung zur Vermeidung von Quietschgeräuschen durch eine Dichtung an einer Fensterscheibe
US5812684A (en) * 1995-07-05 1998-09-22 Ford Global Technologies, Inc. Passenger compartment noise attenuation apparatus for use in a motor vehicle
US5970659A (en) * 1995-08-25 1999-10-26 Draftex Industries Limited Sealing and guiding strips
DE19826171C1 (de) 1998-06-13 1999-10-28 Daimler Chrysler Ag Verfahren und Vorrichtung zur aktiven Beeinflussung von von Fensterscheiben stammenden Geräuschen
US20010001916A1 (en) * 1999-11-30 2001-05-31 Masahiro Nozaki Glass run of an automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331790C2 (de) 1993-09-18 1996-02-08 Daimler Benz Aerospace Ag Einrichtung zur Vermeidung von Quietschgeräuschen durch eine Dichtung an einer Fensterscheibe
US5812684A (en) * 1995-07-05 1998-09-22 Ford Global Technologies, Inc. Passenger compartment noise attenuation apparatus for use in a motor vehicle
US5970659A (en) * 1995-08-25 1999-10-26 Draftex Industries Limited Sealing and guiding strips
DE19826171C1 (de) 1998-06-13 1999-10-28 Daimler Chrysler Ag Verfahren und Vorrichtung zur aktiven Beeinflussung von von Fensterscheiben stammenden Geräuschen
US20010001916A1 (en) * 1999-11-30 2001-05-31 Masahiro Nozaki Glass run of an automobile

Also Published As

Publication number Publication date
AU2003240744A1 (en) 2003-12-22
DE10224966C1 (de) 2003-12-04

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