EP0941184A1 - Raclette d'essuie-glace pour vehicules - Google Patents

Raclette d'essuie-glace pour vehicules

Info

Publication number
EP0941184A1
EP0941184A1 EP97913139A EP97913139A EP0941184A1 EP 0941184 A1 EP0941184 A1 EP 0941184A1 EP 97913139 A EP97913139 A EP 97913139A EP 97913139 A EP97913139 A EP 97913139A EP 0941184 A1 EP0941184 A1 EP 0941184A1
Authority
EP
European Patent Office
Prior art keywords
wiper
strip
spring rail
spring
wiper blade
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Withdrawn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
EP97913139A
Other languages
German (de)
English (en)
Inventor
Oliver Schael
Volker Herrmann
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.)
Valeo Wischersysteme GmbH
Original Assignee
Valeo Auto Electric Wischer und Motoren GmbH
ITT Manufacturing Enterprises LLC
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 Valeo Auto Electric Wischer und Motoren GmbH, ITT Manufacturing Enterprises LLC filed Critical Valeo Auto Electric Wischer und Motoren GmbH
Publication of EP0941184A1 publication Critical patent/EP0941184A1/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Withdrawn legal-status Critical Current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
    • B60S1/38—Wiper 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
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3817—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support
    • B60S2001/382—Means of supporting or holding the squeegee or blade rubber chacterised by a backing strip to aid mounting of squeegee in support the backing strip being an essentially planar reinforcing strip, e.g. vertebra
    • 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
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3822—Means of supporting or holding the squeegee or blade rubber characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips

Definitions

  • the invention relates to a wiper blade for cleaning windows on vehicles of the type described in the preamble of claim 1.
  • Such a wiper blade from which the invention is based and which has all the features of the preamble of claim 1, is already known from DE 43 25 601 AI.
  • a single end cap is provided, which alone secures the wiper strip on the support frame and the spring rail in the wiper strip.
  • the housing-like end cap which is pushed onto one end of the back strip of the wiper strip is squeezed into the material of the head strip with a hook set formed from inwardly directed hook-shaped projections and is thereby held on the latter.
  • a pair of spring arms belonging to the end cap engages behind the adjacent outer claw pair of the DT support frame with inwardly directed latching shoulders and thus locks this end of the wiper strip equipped with the spring rail on the support frame of the wiper blade.
  • two locking fingers are provided in the interior of the housing-like end cap, which extend longitudinally into the through channel of the head strip and engage corresponding counter-locking shoulders on the spring rail with locking shoulders located at their free ends, which by corresponding undercuts on the longitudinal sides of the reduced-width end section of the spring rail are formed.
  • the internal dimensions and shapes of the housing-like end cap are thus based on the dimensions and external shapes of the back strip of the wi- adjusted so that the outside of the end of the back cap received by the end cap fits tightly against the inside of the cap.
  • the disadvantage of this is that when the worn wiper strip has to be replaced, the end cap can hardly be removed from the wiper strip and the spring rail without being destroyed, so that reuse of the spring rail and the end cap is impossible.
  • a wiper blade of a different type for a vehicle wiper is known, two spring rails being provided which are inserted into corresponding longitudinal grooves on the opposite longitudinal sides of the head strip of the wiper strip and are held therein.
  • two identical housing-like end pieces are provided, which are arranged on the opposite ends of the head strip protruding from the support frame. The two end pieces are each fastened by inward-directed projections which engage in corresponding recesses in the two spring rails.
  • DE 86 16 349.3 Ul thus uses two end pieces to secure the wiper strip on Support frame and the two spring rails disclosed on the wiper strip, but such a solution is not readily transferable to a wiper blade of the type described in the preamble of claim 1.
  • the invention has for its object to improve a wiper blade of the type described in the preamble of claim 1 so that a secure hold of the wiper strip and the spring rail is guaranteed on the support frame of the wiper blade without reducing the quality of the wiper.
  • the invention provides that an end cap of the same type is now attached to each end of the head strip equipped with the spring rail. This ensures that both ends of the wiper strip are covered by an end cap with respect to the head strip, so that the spring rail cannot protrude openly or unprotected from the head strip even when the wiper strip shrinks in length. It is essential to the invention, however, that the two end caps are each locked in the outward longitudinal direction of the wiper strip only on the spring rail and are also formed in the inward longitudinal direction as a stop for the support frame or for the - adjacent outer pair of claws . The end caps are now locked in a form-fitting manner at the ends of the spring rail.
  • the spring rail has a significantly greater dimensional stability compared to the elastic wiper strip, this positive connection between the end caps and the spring rail is much more stable than fastening the end caps to the head strip by means of hook pairs squeezed into the material of the head strip, so that the stability required for the wiper operation the fastening of the cover caps is guaranteed.
  • the secure fit of the cover caps due to the longitudinal locking exclusively on the spring rail is a guarantee that the elastic wiper strip is held securely and functionally on the support frame of the wiper blade under all operating conditions.
  • the locking projections provided on the locking fingers of the two end caps are designed as barbs. Accordingly, the edge-open snap-in receptacles provided at the ends of the spring rail on the opposite longitudinal sides are designed as corresponding barb-like undercuts. This configuration significantly increases the security of the positive connection of the end caps via the locking fingers to the spring rail.
  • the particular advantage of the measures according to claim 3 is that a worn wiper strip can be replaced in a simple manner without destroying the end caps.
  • the end cap By turning the end cap around the longitudinal direction of the spring rail, the locking projections on the two locking fingers are brought out of engagement with the locking receptacles of the spring rail.
  • This rotation of the end caps is made possible by the fact that there is a certain amount of clearance between the inside of the housing-like end cap and the outside of the end of the elastic head strip, which allows a temporary elastic deformation of the end section of the head strip.
  • a further development of the invention according to claim 4 is advantageous, which provides that a spring element is arranged on the inner end face of the end cap, which spring element is connected to resilient bias is supported on the end face of the spring rail, while the locking projections on the locking fingers engage in the locking receptacles on the spring rail.
  • This measure ensures a secure, longitudinal play-free fit of the end cap on the spring rail, especially when the length of the elastic wiper strip has shrunk by a certain amount due to material aging, so that the end caps are supported at the opposite ends only on the spring rail can.
  • a further development of the invention according to claim 5 is also recommended, which facilitates the insertion of the spring rail into the through channel of the head strip belonging to the wiper strip when the wiper blade is installed.
  • a further development of the invention according to claim 6 can in particular be used to indicate the aging or worn state of the wiper strip as a function of time and thus to signal the required replacement of the wiper strip or the wiper blade.
  • Figure 2 shows an end cap in a bottom view, i.e. from the direction of the window to be wiped
  • FIG. 2 shows the section III-III from FIG. 2,
  • Fig. 4 in a partially sectioned illustration one end of a wiper strip equipped with a spring rail and provided with an end cap and
  • FIG. 5 shows the section VV from FIG. 4.
  • 1 shows a wiper blade for a vehicle wiper device, the structure of which essentially corresponds to the generally customary structure.
  • a support frame 1 is formed by a main bracket 2 and subordinate brackets which are connected to one another in an articulated manner. The most subordinate are the claw brackets 3, which are each provided with a pair of claws 4 at their opposite ends.
  • a so-called hanging box 5 is formed, in the parallel side walls of which a hinge pin 6 is held, the hanging box 5 and the hinge pin 6 being designed to pivot the main bar 2 of the support frame 1 at the end of a pendulum-driven wiper arm, not shown to fix.
  • FIG. 1 also shows a wiper strip 7 made of rubber-elastic material, which has a back strip 8, on the underside of which a wiper lip 10 is fastened via a tilting web 9, which wiping in a known manner on the one not shown in FIG. 1 Disc rests.
  • the opposite longitudinal sides of the back bar 8 are each, as can also be seen from FIG. 5, equipped with a longitudinal groove 11, in which the pairs of claws 4 of the claw brackets 3 of the support frame 1 engage in order to hold and guide the wiper strip 7.
  • a through channel 12 with a closed circumference is introduced into the back bar 8, which is intended to receive a one-piece spring rail 13 for pressure distribution.
  • the spring rail 13 is made of spring steel strip, and the cross section of the through channel 12 is adapted to the cross section of this spring rail 13.
  • the wiper strip 7 is produced in the extrusion process, so that it has the same cross section over its entire length.
  • Fig. 1 it can be seen that the entire wiper strip 7 is longer than the support frame 1, so that the opposite ends of the wiper strip 7 protrude from the support frame 1 and thus protrude from the respective outer pairs of claws 4.
  • the length of the spring rail 13 arranged in the through-channel 12 of the head strip 8 corresponds approximately to the length of the wiper strip 7.
  • end caps 14 of the same type are arranged on the ends of the head strip 8 protruding from the DTragstelll. These end caps 14 are each locked in the outward longitudinal direction RA only on the spring rail 13.
  • the two end caps 14 are designed so that they cooperate in the inward longitudinal direction RE as stops with the support frame 1 or with the adjacent outer pair of claws 4, whereby the wiper strip 7 is secured overall in its longitudinal direction on the support frame 1 .
  • the end cap 14 which is produced overall as a one-piece plastic part, has a housing-like structure with the opposite side walls 15, the upper wall 16, a lower wall and an end wall 17.
  • the side of the cover cap 14 opposite the end wall 17 is open.
  • In the middle of the lower wall there is a gap 18 which extends from the open side to the front wall 17 of the cover cap 14, whereby only the ribs 19 which extend inwards from the side walls 15 remain from the lower wall.
  • the chamber-like cavity of the end cap 14 thus formed accommodates the end section of the back bar 8, the ribs 19 immersing in the same longitudinal grooves 11, in which the pairs of claws 4 of the support frame 1 also engage.
  • the two locking fingers 20 can be seen, which extend from the end wall 17 and extend in the longitudinal direction of the wiper blade or the back strip 8 without protruding from the end cap 14.
  • the inward locking projections 21 can be seen, which in the present exemplary embodiment are designed as barbs.
  • a spring element 22 can be seen inside the end cap 14, which is arranged at a distance between the two locking fingers 20 and also emerges from the end wall 17.
  • the spring element 22 has two fork-like spring legs, which, like the two locking fingers 20, are formed symmetrically to the longitudinal axis 24 of the end cap 14, which is also the longitudinal axis 24 of the spring rail 13 or the head strip 8.
  • the spring rail 13 arranged in the through channel 18 of the wiper strip 7 has at its opposite ends end sections 23, the width of which is reduced compared to the width of the remaining spring rail 13.
  • corresponding free spaces have been created on the longitudinal sides of the end section 23, into which the latching fingers 20 of the end cap 14 can dip.
  • the barb-shaped locking projections 21 engage at the free ends of the locking fingers 20 in corresponding locking receptacles 25 on the end section 23, which have a barb-shaped undercut.
  • the fork-like spring element 22 is integrally formed on the end wall 17 of the end cap 14.
  • an outer pair of claws 4 can also be seen, which engages in the same longitudinal grooves 11 on the back bar 8 as the two ribs 19 of the end cap 14.
  • the end caps locked on the opposite end portions 23 of the spring rail 13 each act as a stop with one outer claw pair 4 together to secure the spring rail 13 and thus the entire wiper strip 7 in the longitudinal direction on the support frame 1.
  • it In order to replace a worn wiper strip, it must be removed from the support frame 1.
  • At least one end cap 14, but preferably both end caps 14, are removed from the spring rail 13 or the head strip 8.
  • the positive locking connection between the locking fingers 20 of the cap 14 and the end portion 23 of the spring rail 13 must be canceled. This is done by rotating the end cap 14 relative to the spring rail 13 about the longitudinal axis 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

L'invention concerne une raclette d'essuie-glace pour le nettoyage de vitres de véhicules, comprenant un cadre-porteur de forme allongée, pouvant être appliqué sur un bras entraîné de monture d'essuie-glace, ce cadre maintenant, au moyen d'une paire de griffes (4), une réglette élastique d'essuie-glace en caoutchouc (7), dans la barre dorsale (8) de laquelle est disposé, dans un canal traversant, un rail élastique d'une seule pièce (13), dont la longueur est sensiblement égale à la longueur de la réglette (7) ou de la barre de tête (8). Cette réglette (7), équipée du rail (13) est retenue longitudinalement par deux capuchons terminaux (14) sur le cadre-porteur de la raclette, les deux capuchons étant retenus uniquement dans le sens longitudinal sur le rail élastique (13) et étant réalisés sous forme de butée pour le cadre-porteur de la raclette ou de la paire de griffes extérieure adjacente (4).
EP97913139A 1996-12-04 1997-10-14 Raclette d'essuie-glace pour vehicules Withdrawn EP0941184A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1996150159 DE19650159A1 (de) 1996-12-04 1996-12-04 Wischblatt zur Reinigen von Scheiben an Fahrzeugen
DE19650159 1996-12-04
PCT/EP1997/005653 WO1998024665A1 (fr) 1996-12-04 1997-10-14 Raclette d'essuie-glace pour vehicules

Publications (1)

Publication Number Publication Date
EP0941184A1 true EP0941184A1 (fr) 1999-09-15

Family

ID=7813535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97913139A Withdrawn EP0941184A1 (fr) 1996-12-04 1997-10-14 Raclette d'essuie-glace pour vehicules

Country Status (3)

Country Link
EP (1) EP0941184A1 (fr)
DE (1) DE19650159A1 (fr)
WO (1) WO1998024665A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19802451A1 (de) * 1998-01-23 1999-07-29 Bosch Gmbh Robert Wischblatt für Scheiben von Kraftfahrzeugen mit einem langgestreckten, federelastischen Tragelement
DE10000373B4 (de) * 2000-01-07 2015-09-10 Valeo Auto-Electric Wischer Und Motoren Gmbh Wischblatt zum Reinigen von Scheiben an Fahrzeugen
DE10025706A1 (de) * 2000-05-25 2001-11-29 Bosch Gmbh Robert Wischblatt zum Reinigen von Fahrzeugscheiben
DE10120467A1 (de) 2001-04-26 2002-10-31 Bosch Gmbh Robert Wischblatt zum Reinigen von Scheiben, insbesondere von Kraftfahrzeugen
DE10139104A1 (de) * 2001-08-09 2003-03-06 Valeo Auto Electric Gmbh Wischblatt, insbesondere Flachwischblatt
DE10333083A1 (de) * 2003-07-21 2005-02-17 Volkswagen Ag Wischblatt für Fahrzeugscheiben
FR2871127B1 (fr) * 2004-06-03 2007-09-07 Valeo Systemes Dessuyage Balai d'essuie-glace plat notamment pour vehicule automobile
FR2910414B1 (fr) * 2006-12-21 2009-07-31 Valeo Systemes Dessuyage Balai plat notamment pour dispositif d'essuie-glace de vehicule automobile
CN103237693B (zh) * 2010-11-24 2016-08-17 特瑞克产品公司 具有自锁端帽的梁片式风档刮水器组件
CN107618480B (zh) * 2016-07-13 2020-08-25 台州法雷奥温岭汽车零部件有限公司 用于雨刷臂的保护帽
WO2020001776A1 (fr) * 2018-06-28 2020-01-02 Federal-Mogul S.A. Dispositif d'essuie-glace
WO2020074078A1 (fr) * 2018-10-10 2020-04-16 Federal-Mogul S.A. Dispositif d'essuie-glace

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2267909B1 (fr) * 1974-04-18 1978-01-20 Ducellier & Cie
FR2391882A1 (fr) * 1977-05-25 1978-12-22 Ducellier & Cie Balai d'essuie-glace pour vehicules automobiles
DE8616349U1 (de) 1986-06-19 1986-08-14 Robert Bosch Gmbh, 7000 Stuttgart Wischblatt zum Reinigen von Scheiben an Kraftfahrzeugen
DE8911642U1 (de) * 1989-09-29 1991-01-31 Robert Bosch Gmbh, 7000 Stuttgart Wischblatt zum Überstreichen von Kraftfahrzeugscheiben
IT1241627B (it) * 1990-12-07 1994-01-25 Champion Spark Plug Divisione Braccio tergitore per dispositivi tergicristallo di veicoli
DE4322200A1 (de) * 1993-07-03 1995-01-12 Bosch Gmbh Robert Wischblatt zum Reinigen von Scheiben an Kraftfahrzeugen
DE4325601A1 (de) 1993-07-30 1995-02-02 Bosch Gmbh Robert Scheibenwischblatt mit einem mehrgliedrigen Traggestell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9824665A1 *

Also Published As

Publication number Publication date
DE19650159A1 (de) 1998-06-10
WO1998024665A1 (fr) 1998-06-11

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