EP0929422A2 - Bras d'essuie-glace - Google Patents

Bras d'essuie-glace

Info

Publication number
EP0929422A2
EP0929422A2 EP98946257A EP98946257A EP0929422A2 EP 0929422 A2 EP0929422 A2 EP 0929422A2 EP 98946257 A EP98946257 A EP 98946257A EP 98946257 A EP98946257 A EP 98946257A EP 0929422 A2 EP0929422 A2 EP 0929422A2
Authority
EP
European Patent Office
Prior art keywords
wiper
joint part
wiper arm
arm according
sheet metal
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.)
Withdrawn
Application number
EP98946257A
Other languages
German (de)
English (en)
Inventor
Wilfried Merkel
Peter De Block
Roger Daenen
Frans Breesch
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0929422A2 publication Critical patent/EP0929422A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/34—Wiper arms; Mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3425—Constructional aspects of the arm
    • B60S1/3431—Link pieces
    • B60S1/3434—Manufacturing details thereof

Definitions

  • the invention is based on a wiper arm according to the features of the preamble of claim 1.
  • Known windshield wipers have a wiper arm which is constructed from a driven fastening part, a joint part connected to the latter via a knee joint and a wiper rod rigidly adjoining the joint part. Furthermore, the windshield wiper has a wiper blade, which has a support bracket system and a wiper strip held by this. The wiper blade is articulated on the wiper arm in that a hook-shaped end of the wiper rod engages between two side cheeks of the support bracket system and comprises a hinge pin. The joint thus formed guides the wiper blade with the wiper strip over a motor vehicle window, the joint part and the support bracket system making it possible for the wiper adjusted a curvature of the motor vehicle window. A required contact pressure of the
  • Wiper strip on the motor vehicle window is achieved with at least one tension spring, which braces the fastening part and the joint part together with the wiper rod via the knee joint.
  • the shape of the individual components of the wiper arm is influenced by different requirements and loads, and they should be designed to be torsionally rigid, rigid and narrow in the field of view so that the wiper blade can be guided over the motor vehicle window in a vibration-free and controlled manner and thereby hardly disturbs the field of vision.
  • the fastening part transmits the drive torque from the drive axle via the joint part and via the wiper rod to the wiper blade. Furthermore, it forms part of the knee joint, via which the fastening part is braced with the joint part with the tension spring and is pressed in the direction of the motor vehicle window.
  • the fastening part and the first part of the joint part must therefore be designed to be particularly resistant to bending and torsion.
  • the second part of the joint part moves partially during a wiping movement and the wiper rod completely through the field of vision of the driver, which means that they not only have to be torsionally and flexurally rigid, but also particularly narrow so that they disturb the view as little as possible.
  • the wiper arm should be shaped so that it is not lifted off the windshield by the wind.
  • Known wiper arms have a wide fastening part and a hinge part formed from sheet metal, which in the area of the fastening part, i.e. at the bottom of the field of vision, is still relatively wide, often with a U-profile open to the motor vehicle window. Because of its favorable resistance torque, it is particularly torsion and bending resistant in this area and the tension spring can be hidden in the U-profile.
  • the joint part tapers in the direction of the free end or the connection point with the wiper rod so that it is narrow in the field of vision.
  • the profile has a constant material thickness, determined by the sheet used, over the entire length of the joint part, which is designed for the desired stiffness at the greatest expected material load, which is composed essentially of bending and torsional stresses, namely vertically and parallel to the motor vehicle window.
  • the wiper rod is usually formed by a rod profile with a constant material thickness, which is crimped to the joint part.
  • the material loads in the wiper arm depend on various factors. Of driving forces and contact forces, their points of attack, lever arms and moments of resistance of the wiper arm. Since the shape cannot be matched to the load profiles and the deflections alone, other aspects must also be taken into account, such as creating a storage space for the tension spring, effective wind attack surfaces and, in particular, a slim design in the field of vision, etc., occur on various Set up large, different material loads.
  • the materials are often rial requirements in the connection point of the wiper rod with the joint part and in the wiper rod itself due to the small cross-sectional area and unfavorable resistance moments.
  • the material thickness of the joint part is determined by the material load at the connection point to the wiper rod and the wiper rod is formed from a stronger material overall.
  • the parts of the wiper arm formed from sheet metal i.e. in the fastening part and in particular in the joint part and the wiper rod, different amounts of material layers are folded over one another in different areas until the material thickness required for the respective cross section is reached.
  • the material can be folded over once or several times by approximately 180 °, or removed surface areas can be folded in one or preferably in several steps in order to support one another.
  • the folded layers of material in the corresponding areas act almost like an overall stronger material. This means that different materials can be made from a relatively thin sheet in different areas. strengths can be achieved that can be precisely matched to different loads. Only in areas where high material loads occur can the folding technology generate larger material thicknesses. Overall, a thinner sheet thickness can be used for the parts. In addition, the surfaces lying on one another dampen vibrations and thus largely suppress rattling of the wiper strip on the motor vehicle window, or cause it to fade away quickly.
  • connection point of the wiper rod on the joint part is usually already relatively far in the field of vision and must therefore be made narrow with a small cross-sectional area. Furthermore, in addition to large material tensions due to the drive torque and the tension spring, tensions occur due to the fastening of the wiper rod on the joint part, which overlaps with the other material tensions.
  • the joint part in the area of the connection point of the wiper rod is reinforced by several layers of material folded over one another and thus the small cross-sectional area is compensated for.
  • the multi-layer surface area can be changed continuously over the length of the parts, for example by one layer tapering obliquely in the longitudinal direction.
  • the parts can be inexpensively matched to constant torque profiles or material load profiles.
  • the joint part tapers strongly in the longitudinal direction from the drive axis to the wiper rod.
  • the cross-sectional area decreases and the material load increases. It is therefore proposed that, based on the cross-sectional area, the partial region with several material layers folded over one another in the longitudinal direction increases. If the joint part has an advantageous U-profile, this is achieved in that, starting from the articulation point with the fastening part, first side cheeks and then a cover side of the U-profile are increasingly made with two or more layers of material.
  • the folding technique results in low material costs due to thinner sheet thicknesses, less waste material and low weight.
  • more cost-effective, weakly dimensioned cutting tools can also be used, as a result of which a smaller gap is required between the shapes to be cut out.
  • As a guide a distance of three times the sheet thickness must be maintained. Lower sheet thicknesses therefore result in less material waste.
  • the folding technique can be used to create elegant transitions between different material thicknesses in a one-piece component.
  • the previously known sheet metal parts for the wiper arm are partially cut out side by side from a larger sheet metal sheet, so that they do not mutually influence each other during further forming and can nevertheless be transported cheaply.
  • this area is proposed to use as folding surfaces.
  • the sheet metal parts are thus produced from one-piece, flat sheet metal sheets with contour surfaces and subsequent folding surfaces.
  • the contour surfaces are used for the basic shaping of the sheet metal part and the folding surfaces for fastening areas and to achieve different material thicknesses. The material is better used, ie waste material is largely avoided and thus the material costs are reduced.
  • the folding surfaces lie in a rectangle predetermined by the contour surfaces and this is almost completely filled by the two surfaces, the material can be used even better and the waste material can be reduced even further. It is also possible that the folding areas extend beyond the rectangle and complement each other with folding areas of adjacent identical or different components with the same or different orientation.
  • the wiper rod is fastened at one end to the joint part, for example crimped, welded, etc.
  • a spring suspension in the form of a hole for a tension spring is introduced into this end, with which the fastening part and the wiper rod are jointly used be clamped to the joint part.
  • the wiper rod extends over the fastening area with the joint part in the direction of the fastening part, so that the tension spring is made shorter and can be conveniently arranged in the still wider lower area of the joint part.
  • the spring suspension is formed on the joint part. As a result, the wiper rod can be made shorter, which saves material, weight and costs.
  • the spring suspension can be inserted into a single-walled contour of the joint part.
  • the spring attachment is formed from folding surfaces on the joint part. whereby an externally concealed spring attachment that is precisely matched to the load by the wall thickness can be achieved without the contour of the joint part being weakened by recesses.
  • the wiper rod is usually connected to the joint part by crimping. If the joint part has several material layers in the area of the connection point of the wiper rod and at least the material layer that comes into contact with the wiper rod has one or more locking holes, favorable snap connections can be created between the joint part and the wiper rod, which can be made releasable.
  • the elaborate connection by crimping is no longer necessary and already painted wiper rods and joint parts can be connected to each other. If the locking holes do not go through all layers of material and are therefore covered to the outside, no water and dirt can accumulate in them, which can create corrosion-resistant and dirt-insensitive, elegant snap connections.
  • the wiper rod can be attached particularly securely, torsionally and rigidly.
  • the hollow profile can have locking holes for the wiper rod on the upper and lower sides.
  • the joint part and the wiper rod are formed from a one-piece sheet metal part.
  • the wiper arm has fewer individual parts and can be elegantly designed without a transition between individual components. Furthermore, one assembly step is saved to connect the wiper rod and the joint part to one another. Since the wiper rod is directly in the field of vision, this is special to be carried out narrowly with a small cross-section. In order to compensate for the small cross-section and to achieve a sufficiently torsion and bending-resistant wiper rod, it is proposed to form the wiper rod from at least two layers of material folded over one another.
  • recesses are made in the still flat sheet metal plate, which form the locking holes or fastening holes after the bending process. Several recesses can be made at the same time with simple means in the flat metal sheet.
  • Fig. 5 shows a section along the line V-V in Fig. 4
  • Fig. 6 shows a section along the line VI-VI in
  • FIG. 11 shows a section along the line XI-XI in FIG. 10,
  • FIG. 14 shows a section along the line XIV-XIV in FIG. 11
  • FIG. 15 shows a view of a joint part integrally connected to a wiper rod from below with a fastening area for a wiper blade
  • 16 shows a section along the line XVI-XVI in FIG. 15.
  • the windshield wiper shown in FIG. 1 has a wiper arm which is fastened to a drive axle 10 with a fastening part 12.
  • a joint part 14 is articulated together with a wiper rod 18, on which a wiper blade 84 is suspended in a hook-shaped end 88.
  • FIG. 2 shows a still flat sheet metal part for a joint part 14, which has cut surfaces 94, folding surfaces 22, 28 and contour surfaces 20.
  • the folding surfaces 22, 28 are cut out of the cut surfaces 94 together with the contour surfaces 20 using a cutting or stamping method, which are obtained as waste material.
  • the folding surfaces 22, 28 lie in a predetermined by the contour surfaces 20
  • Rectangle 24 which is almost completely filled by the surfaces 22, 28, 20, as a result of which several joint parts 14 can advantageously be arranged next to one another during manufacture, without large amounts of waste material being produced.
  • the joint part 14 is formed from the contour surfaces 20 and the folding surfaces 22, 28 in one or more work steps, in that the contour surfaces 20 in bending edges 104 are usually bent by approximately 90 ° and the folding surfaces 22, 28 by approximately 180 ° ( Fig. 3).
  • the contour surfaces 20 essentially result in the outer contour, which is preferably formed at least in the region 40 from a articulation point 38 with the fastening part 12 from a U-profile (FIG. 3).
  • the folding surfaces 22, 28 serve to certain areas of the joint part 14 to produce greater wall thicknesses by means of a plurality of material layers 34, 36 and latching holes 54, 56 or fastening holes 26, for example by simply or repeatedly folding them in one or more work steps by approximately 180 ° or opposing surfaces 28 are folded together (Fig. 4 to 8).
  • the joint part 14 becomes flatter and narrower from the articulation point 38 with the fastening part 12 in the longitudinal direction 32 to a connection point 30 with the wiper rod 18 (FIGS. 3 and 4). With the decrease in the spanned cross-sectional area of the U-profile, the torsional and bending stiffness decrease at the same time. It is proposed that the part with a plurality of 15 layers of material 34, 36 folded over one another increases from the articulation point 38 with the fastening part 12 to the connection point 30 with the wiper rod 18 over the cross section of the joint part 14.
  • the joint part 14 completely has only one material layer 34, in a second partial area 44 side cheeks 20 46, 48 of the U-profile are made with two material layers 34, 36 and in a third partial area 50 the side cheeks 46, 48 and a top side 52 of the U-profile with two material layers 34, 36 executed (Fig. 3 to 7).
  • folding surfaces 22, 28 can be used for fastening points 26. It is particularly advantageous if a spring attachment 26 is formed on the joint part 14, specifically by making recesses 72 in folding surfaces 28 (FIG. 2), which form the spring attachment 26 after folding
  • connection point 30 of the articulated part 14 the wiper rod 18 is fastened without play, which in addition to being caused by wind forces and driving forces also by clamping forces. te burdens arise.
  • the connection point 30 has a hollow profile 58, which is designed with several material layers 34, 36 over the entire cross section (FIG. 8). However, an open, not closed profile is also possible.
  • the wiper rod 18 can be crimped, welded, riveted to the joint part 14 or fastened in a positive or non-positive manner in any other known manner.
  • the wiper rod 18 is fastened to the joint part 14 with a latching connection, which can be designed to be detachable or non-detachable.
  • locking holes 54, 56 are arranged in the area of the connection point 30 in the hollow profile 58, specifically in the upper area of the hollow profile 58, the side facing away from a motor vehicle window, only in the material layer 36 coming into contact with the wiper rod 18 and in the lower area in both Material layers 34, 36 (Fig. 8).
  • the latching holes 54 are covered on the upper side, they are thus protected against dirt, corrosion, etc., and an optically elegant surface is achieved.
  • the locking mechanism can be actuated by the material layers 34, 36, for example in order to be pressed out of the locking position and to detach the wiper rod 18 from the joint part 14.
  • the lower locking holes 56 can, however, also be arranged only in the inner material layer 36, concealed from the outside.
  • Comparable areas and parts are therefore designated with the same reference numerals, such as the spring attachment 26, the fastening point 82, the bending edges 104 etc.
  • the folding surfaces 100 also lie in a rectangle 102 predetermined by the contour surfaces 98.
  • the wiper rod 62 must be made very thin and narrow so that it restricts the field of vision as little as possible and does not form a large contact surface for the airstream. So that, despite the resulting small cross-sectional area, this has high bending and torsional rigidity, the wiper rod 62 is formed according to the invention by a plurality of material layers 64, 66, 92 folded over one another (FIGS. 11 and 14). In the exemplary embodiment shown, the folding surfaces 100 are folded twice by approximately 180 ° and thus form three material layers 64, 66 and 92 (FIG. 14), but it is also possible that they are used only once or more than twice in one or preferably in several manufacturing steps. Sheet thicknesses between 2 or 1.5 mm with which wiper rods 62 in different widths with a material thickness of 2.0; 4.0; 6.0; 8.0; or 1.5; 3.0; 4.5; 6.0 mm, etc. can be formed.
  • a hook is bent at the free end 88, into which the wiper blade 84 is suspended and in which Usually attached with a snap connection (Fig. 15 and 16).
  • a fastening hole 90 is made in the wiper rod 62 in the area of the hook, which is formed by recesses 86 in the folding surfaces 100 after the wiper rod 18 is folded and the recesses 86 are thereby placed one above the other.
  • the fastening hole 90 can pass through all material layers 64, 66, 92 or preferably only through the two inner 66, 92.
  • Joint part 60 is connected to the fastening part 12, are introduced in several or in one step in the sheet metal part, which is still flat, analogous to the first exemplary embodiment.
  • Steel material is suitable as material for long joint parts 14, wiper rods 18, or one-piece joint parts 60 and wiper rods 62, with which sufficient bending and torsional rigidity is achieved with acceptable material thicknesses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Tents Or Canopies (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention se fonde sur un bras d'essuie-glace muni d'une pièce de fixation (12) entraînée, reliée de manière articulée à une pièce d'articulation (14, 60), à laquelle se raccorde de manière rigide une tige (18, 62), au moins une des pièces (12, 14, 60, 18, 62) étant en tôle. Il est prévu qu'au moins une des parties (12, 14, 60, 18. 62) en tôle présente au moins une zone comportant plusieurs couches de matériau (34, 36, 64, 66, 92) repliées les unes sur les autres.
EP98946257A 1997-08-14 1998-08-05 Bras d'essuie-glace Withdrawn EP0929422A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19735301A DE19735301A1 (de) 1997-08-14 1997-08-14 Wischarm
DE19735301 1997-08-14
PCT/DE1998/002251 WO1999008911A2 (fr) 1997-08-14 1998-08-05 Bras d'essuie-glace

Publications (1)

Publication Number Publication Date
EP0929422A2 true EP0929422A2 (fr) 1999-07-21

Family

ID=7839001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98946257A Withdrawn EP0929422A2 (fr) 1997-08-14 1998-08-05 Bras d'essuie-glace

Country Status (7)

Country Link
US (1) US6505377B1 (fr)
EP (1) EP0929422A2 (fr)
JP (1) JP2001502640A (fr)
KR (1) KR20000068765A (fr)
BR (1) BR9806093A (fr)
DE (1) DE19735301A1 (fr)
WO (1) WO1999008911A2 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020004A1 (de) 2000-04-22 2001-11-08 Bosch Gmbh Robert Gelenkteil für Scheibenwischer
US7055208B2 (en) 1997-08-14 2006-06-06 Robert Bosch Gmbh Joint part for a windshield wiper
JP3174772B2 (ja) * 1999-06-25 2001-06-11 株式会社ミツバ ワイパアーム
DE19931155A1 (de) * 1999-07-06 2001-01-25 Bosch Gmbh Robert Verfahren zur Fertigung von Wischanlagenkomponenten aus extrudierten Profilen
DE10031274A1 (de) * 2000-06-27 2002-01-10 Bosch Gmbh Robert Wischarm für Kraftfahrzeuge
DE10039053A1 (de) * 2000-08-10 2002-02-28 Bosch Gmbh Robert Befestigungsteil für einen Scheibenwischer
DE10100020A1 (de) * 2001-01-03 2002-07-04 Bosch Gmbh Robert Wischerarme sowie Verfahren zur Herstellung von Wischerarmen
DE10108183A1 (de) * 2001-02-21 2002-08-29 Bosch Gmbh Robert Wischvorrichtung, insbesondere für ein Kraftfahrzeug
DE10122458A1 (de) * 2001-05-09 2002-11-14 Bosch Gmbh Robert Wischerarm, insbesondere für ein Kraftfahrzeug und Verfahren zur Herstellung eines solchen
DE10208537A1 (de) 2002-02-27 2003-09-11 Bosch Gmbh Robert Wischarm
DE10227819A1 (de) 2002-06-21 2004-01-08 Robert Bosch Gmbh Befestigungsteil für einen Wischerarm eines Fahrzeug-Scheibenwischers
US7225498B2 (en) * 2002-10-28 2007-06-05 Valeo Electrical Systems, Inc. Windshield wiper system with tubular member plus internal hose
US7165287B2 (en) * 2002-10-28 2007-01-23 Valeo Electrical Systems, Inc. Windshield wiper system having a tubular member having a foam core
US7272867B2 (en) * 2002-10-28 2007-09-25 Valeo Electrical Systems, Inc. Windshield wiper system with drive arm
US6833682B2 (en) * 2002-10-28 2004-12-21 Valeo Electrical Systems, Inc. Windshield wiper system with tubular drive arm and cavity
US7222387B2 (en) * 2002-10-28 2007-05-29 Valeo Electrical Systems, Inc. Windshield wiper system having tubular member
DE10259155A1 (de) * 2002-12-18 2004-07-01 Robert Bosch Gmbh Scheibenwischvorrichtung, insbesondere für ein Kraftfahrzeug
EP1647459B1 (fr) * 2004-10-18 2009-08-05 Federal-Mogul S.A. Un bras d'essuie-glace
FR2887833B1 (fr) * 2005-06-29 2008-08-08 Valeo Systemes Dessuyage Bras d'entrainement realise en materiau composite
US7636981B2 (en) * 2005-10-12 2009-12-29 Concord Tool & Manufacturing, Inc. Windshield wiper arm with hemmed distal end
EP2045153B1 (fr) * 2007-10-01 2014-11-26 Federal-Mogul S.A. Dispositif d'essuie-glace
CN103569058A (zh) * 2013-10-31 2014-02-12 昆山市大久电子有限公司 一种汽车雨刮臂
US20170050620A1 (en) * 2014-05-01 2017-02-23 Federal-Mogul S.A. Windscreen wiper arm
DE102016225161A1 (de) * 2016-12-15 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug-Scheibenwischer sowie hiermit ausgestattetes Kraftfahrzeug
CN117225989B (zh) * 2023-11-15 2024-02-23 苏州铭峰精密机械有限公司 一种一体式雨刮臂成型工艺

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US3427675A (en) * 1967-07-03 1969-02-18 James W Tibbet Windshield wiper and washer assembly
US4133071A (en) * 1976-11-08 1979-01-09 Sprague Devices, Inc. Windshield wiper arm
DE4140958A1 (de) * 1991-12-12 1993-06-17 Swf Auto Electric Gmbh Wischarm, insbesondere zur reinigung von scheiben an kraftfahrzeugen
FR2693693B1 (fr) * 1992-07-15 1994-08-19 Valeo Systemes Dessuyage Bras d'essuie-glace.
WO1996018529A1 (fr) * 1994-12-16 1996-06-20 United Technologies Automotive Systems, Inc. Ensemble essuie-glace pour pare-brise de vehicule
DE19615867A1 (de) * 1996-04-20 1997-10-23 Teves Gmbh Alfred Verfahren zur Herstellung eines Gelenkteiles aus Blech für einen Fahrzeugscheibenwischer
DE19651856A1 (de) * 1996-12-13 1998-06-18 Teves Gmbh Alfred Wischarm einer Fahrzeugscheibenwischervorrichtung

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Title
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Also Published As

Publication number Publication date
WO1999008911A3 (fr) 1999-05-06
JP2001502640A (ja) 2001-02-27
BR9806093A (pt) 1999-08-24
US6505377B1 (en) 2003-01-14
WO1999008911A2 (fr) 1999-02-25
DE19735301A1 (de) 1999-02-18
KR20000068765A (ko) 2000-11-25

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