WO1998054036A1 - Essuie-glace - Google Patents

Essuie-glace Download PDF

Info

Publication number
WO1998054036A1
WO1998054036A1 PCT/SE1997/000948 SE9700948W WO9854036A1 WO 1998054036 A1 WO1998054036 A1 WO 1998054036A1 SE 9700948 W SE9700948 W SE 9700948W WO 9854036 A1 WO9854036 A1 WO 9854036A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper
windshield
bellows
rail
manoeuvring
Prior art date
Application number
PCT/SE1997/000948
Other languages
English (en)
Inventor
Björn JOHANNESSON
Original Assignee
Statens Järnvägar
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
Priority to SE9504293A priority Critical patent/SE505404C2/sv
Application filed by Statens Järnvägar filed Critical Statens Järnvägar
Priority to PCT/SE1997/000948 priority patent/WO1998054036A1/fr
Priority to AU35609/97A priority patent/AU3560997A/en
Publication of WO1998054036A1 publication Critical patent/WO1998054036A1/fr

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
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/52—Arrangement of nozzles; Liquid spreading means
    • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
    • B60S1/524—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms arranged in 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
    • 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
    • B60S2001/3818—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 a channel-like element, e.g. not continuous
    • 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
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3829—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by the material of the squeegee or coating thereof
    • B60S2001/3831—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by the material of the squeegee or coating thereof cleaning by scrubbing or abrasive action
    • 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
    • B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
    • B60S2001/3836—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape
    • B60S2001/3837—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by cross-sectional shape with more than one wiping edge or lip

Definitions

  • the present invention relates to windshield wipers, and particularly to such windshield wipers that are driven by a wiper motor in a to-and-fro motion across the windshield and that are provided with a pair of wiper blades and a device for scraping the windshield clean from insects and the like.
  • Most vehicles which are equipped with a windshield are also equipped with a windshield wiper, the main purpose of which is to keep the windshield clear from water.
  • the water removing effect is achieved by a wiper blade, preferably of rubber, affix- ed to a holder, which sweeps across the windshield in a to-and-fro motion.
  • the effect can be improved by doubling the number of wiper blades on each holder.
  • these vehicles, and in some cases also their windshield wipers are provided with a washer fluid delivery system for cleaning the windshield when required.
  • the washer fluid delivery system makes it possible to spray detergent directly onto the windshield for dissolving more severe dirt.
  • This construction has the disadvantage that the elasticity of the expanding device is decreased relatively fast, whereby the function of the to-and-fro motion is impaired. It is also difficult to achieve a uniform to-and-fro motion along the entire length of the wiper. Furthermore, the mentioned construction is provided with a pair of wiper blades made in one piece, i.e. a relatively complicated construction, which blades are provided with gripping edges to fit a holder manufactured specially for the blades.
  • this known construction is provided with a scraping surface which is fitted directly onto the elastic device, whereby it becomes considerably more difficult to change the scraping surface.
  • a further embodiment in the mentioned document shows a scraping device secured to a pair of H-beams, which moves the scraping device between an inoperative and an operative position by the action of a cam member.
  • This embodiment is relatively complicated, owing to that the cam member requires a specific driving means for its rotary motion.
  • the object of the present invention is to provide a windshield wiper of the type shown in the document mentioned above, but which solves the problems connected with the previous device.
  • the object is futhermore that it shall be easy to change the wiper blades one by one, against almost any type of standard blade and also against wiper blades sold by the metre.
  • the present windshield wiper has also been designed considering the ability of the wiper blades to engage the windshield at relatively high vehicle speeds and in case of strongly curved windshields.
  • the windshield wiper comprises a specially designed holder in the form of an extruded aluminium profile.
  • the holder is symmetrically formed and is adapted to receive two wiper blades, one on each side of the line of symmetry.
  • a wiper rail is arranged in the holder for transverse movement in a space adapted in the holder.
  • the transverse movement of the wiper rail is achieved by pressurising an elastic bellow, preferably of rubber, with air or liquid.
  • the transverse movement causes a scraping element in the form of a sponge, which is attached to the wiper rail, to be pushed out against the windshield to clean the same.
  • Figure 1 is a side view, showing a windshield wiper in accordance with the invention.
  • Figure 2 is a cross section on the line A-A of figure 1 , showing the windshield wiper in the position for normal wiping of rain.
  • Figure 3 is a cross section corresponding to figure 2, but showing the windshield wiper in the position for scraping.
  • Figure 1 shows a windshield wiper comprising a body profile 1 , which extends along the entire length of the wiper.
  • the body profile 1 is attached to a motor-driven wiper arm 2 via a holder 3, which is displaceably adapted to the body profile 1.
  • the holder 3 is secured to the body profile 1 at an optional position along the body profile 1 by means of a locking device (not shown).
  • Rubber wiper blades 4 for wiping of rain are attached to the body profile 1.
  • These wiper blades 4 are slidably inserted into two recesses 5a,5b formed in the body profile 1 , see figure 2, and are secured from sliding in each recess by a locking clamp.
  • the locking clamp has two pins facing each other, which are hooked from either side of the body profile through apertures in the body profile and into transverse grooves, designed for this purpose in the wiper blades.
  • the wiper blades 4 are each provided with a guide rail 7a,7b for stiffening the blades and thereby facilitating the handling of the blades when they are changed.
  • the body profile 1 has a symmetrical cross section, see figure 2, and its recesses 5a, 5b for the wiper blades 4 are arranged on either side of the line of symmetry, with the openings of the recesses facing the windshield. Consequently, the windshield wiper is provided with two wiper blades 4 for wiping of rain.
  • the body profile 1 is further provided with a U-shaped symmetrically placed manoeuvring track 8, which also has its opening facing the windshield.
  • the manoeuvring track receives a wiper rail 9, which is transversally slidable in the track.
  • the wiper rail 9 consists of a pair of H-beams having a web in parallel with the windshield.
  • a manoeuvring bellows 10 is mounted between the web of the H-beams and the bottom of the manoeuvring track, and on the other side of the web, the side facing the windshield, a scraping element 11 is mounted.
  • the manoeuvring bellows 0 is arranged to expand by being pressurised by air or liquid.
  • the manoeuvring bellows 10 is formed as an elongate hollow rubber beam, which on the side facing the web of the wiper rail (H-beams) is provided with a pressing shoulder 12.
  • the pressing shoulder 12 is arranged along the entire length of the bellows 10, and at the expansion of the bellows the pressing shoulder 12 forces the wiper rail 9 towards the windshield, whereby the space between the bottom of the manoeuvring track and the web of the wiper rail increases.
  • This movement causes the scraping element 11 , which is attached to the other side of the web of the wiper rail, to be pressed against the windshield, thereby lifting the body profile 1 with its wiper blades 4 away from the windshield, see figure 3, to a position for insect cleaning.
  • the flanges of the wiper rail (H-beams) are functioning as sliding surfaces against the walls of the manoeuvring track.
  • the flanges are formed with such dimensions that a good guidance in the manoeuvring track is achieved.
  • the wiper rail 9 may also be formed as a U-shaped beam, where the side of the web facing the windshield is provided with a scraping element in the way previously described. In this case the flanges of the U-shaped beam are directed towards the manoeuvring bellows and are functioning, in the same way as the flanges of the H- beams, as guidance against the walls of the manoeuvring track.
  • the manoeuvring bellows 10 is made of crude rubber or of an elastic polymer, and is pressurised via a, not shown, hose.
  • the manoeuvring bellows 10 extends substantially along the entire length of the body profile.
  • a dowel 13 of elastic material is attached to the body profile 1 and the wiper rail 9 in such a way that a spring force, acting against the expansion of the manoeuvring bellows, will bring back the wiper rail 9 and thereby the scraping element 11 towards the body profile 1 , when the pressure in the manoeuvring bellows 10 decreases.
  • the two flanges of the wiper rail 9 determine the stop position for the wiper rail at its inner position, i.e. the position for wiping of rain.
  • An elastic dowel 13 is suitably arranged at each end of the body profile 1.
  • the manoeuvring bellows 10 is in a not shown embodiment provided with a number of nozzles, through which washing fluid or the like can flow out at the expansion of the bellows.
  • the wiper rail 9 is provided with perforations or nozzles, so that fluid will trickle into the scraping element 11 and thereafter get onto the windshield.
  • Figure 2 shows the position of the wiper during wiping of water.
  • the manoeuvring bellows 10 is not pressurised, and the bellows is compressed owing to that the elastic dowels 13 are pulling the wiper rail 9 (H-beams) towards the bottom of the U-shaped manoeuvring track.
  • Figure 3 shows the position of the wiper during scraping. In this position, the manoeuvring bellows 10 is pressurised, and the pressing shoulder 12 of the bellows has pushed out the wiper rail 9 with its scraping element 11 against the action of the elastic dowels 13. It will also be seen from figure 3, that the wiper blades 4 are raised from the windshield in the position for scraping.
  • the scraping element 11 is made of a relatively hard sponge, which can scrape away insects and the like, but which is soft enough not to damage the windshield. If the bellows is expanded by means of washing fluid or some other detergent, perforations are arranged in both the bellows and the wiper rail, so that the scraping element will be soaked with fluid.
  • the body profile 1 is further provided with two guides 14, facing each other, for keeping the holder 3 in a suitable position. Furthermore, the body profile 1 is provided with two symmetrically arranged pressure wings 15, outwardly inclined from the windshield, which help to press the windshield wiper against the windshield at high speeds.
  • the wiper rail 9 is suitably articulately shaped, with one or more joints, to enable the wiper rail 9 to bend into engagement with the windshield along the whole length of the wiper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Transmission Devices (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un essuie-glace comprenant un élément corps allongé (1) de forme symétrique sur lequel sont montés deux balais (4) sensiblement parallèles, un élément de raclage (11) placé entre les balais (4) et un soufflet (10) également placé entre les balais (4). Ce soufflet (10), qui peut être poussé par de l'air ou un liquide, est conçu pour coopérer avec l'élément de raclage (11). L'élément corps (1) est doté d'une rainure de manoeuvre (8), dans laquelle l'élément de raclage (11) monté dans un rail (9) de balai, peut coulisser sous l'effet de l'expansion du soufflet (10).
PCT/SE1997/000948 1995-11-30 1997-05-30 Essuie-glace WO1998054036A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9504293A SE505404C2 (sv) 1995-11-30 1995-11-30 Vindrutetorkare
PCT/SE1997/000948 WO1998054036A1 (fr) 1995-11-30 1997-05-30 Essuie-glace
AU35609/97A AU3560997A (en) 1995-11-30 1997-05-30 Windshield wiper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9504293A SE505404C2 (sv) 1995-11-30 1995-11-30 Vindrutetorkare
PCT/SE1997/000948 WO1998054036A1 (fr) 1995-11-30 1997-05-30 Essuie-glace

Publications (1)

Publication Number Publication Date
WO1998054036A1 true WO1998054036A1 (fr) 1998-12-03

Family

ID=26662438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/000948 WO1998054036A1 (fr) 1995-11-30 1997-05-30 Essuie-glace

Country Status (3)

Country Link
AU (1) AU3560997A (fr)
SE (1) SE505404C2 (fr)
WO (1) WO1998054036A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6375968B1 (en) 1999-10-22 2002-04-23 3M Innovative Properties Company Encapsulated active material immobilized in hydrogel microbeads
WO2005016714A1 (fr) * 2003-08-13 2005-02-24 Delgado Acarreta Raul Dispositif de raclage et de lavage
DE202005016941U1 (de) * 2005-10-28 2007-03-08 Schmitt, Michael Scheibenwischer für Fahrzeugscheiben
EP2181901A3 (fr) * 2008-10-29 2010-09-22 Robert Bosch GmbH Balais d'essuie-glace pour le nettoyage d'une vitre de véhicule
ES2643787A1 (es) * 2016-05-23 2017-11-24 Juan Carlos SAN JOSÉ TORRAS Escobilla limpiaparabrisas
CN109131230A (zh) * 2018-09-17 2019-01-04 王致远 一种储水式汽车雨刮器
KR20210021700A (ko) * 2019-08-19 2021-03-02 김영돈 이물질 제거 브러쉬가 구비된 차량용 와이퍼

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725405A1 (de) * 1977-06-04 1978-12-14 Egon Gelhard Scheibenwischerblatt
WO1980001155A1 (fr) * 1978-12-06 1980-06-12 Trico Folberth Ltd Amelioration aux installations d'essuie-glaces de pare-brise
WO1988008797A1 (fr) * 1987-05-15 1988-11-17 D & D Marketing And Manufacturing Balai d'essuie-glace ameliore

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725405A1 (de) * 1977-06-04 1978-12-14 Egon Gelhard Scheibenwischerblatt
WO1980001155A1 (fr) * 1978-12-06 1980-06-12 Trico Folberth Ltd Amelioration aux installations d'essuie-glaces de pare-brise
WO1988008797A1 (fr) * 1987-05-15 1988-11-17 D & D Marketing And Manufacturing Balai d'essuie-glace ameliore

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6375968B1 (en) 1999-10-22 2002-04-23 3M Innovative Properties Company Encapsulated active material immobilized in hydrogel microbeads
WO2005016714A1 (fr) * 2003-08-13 2005-02-24 Delgado Acarreta Raul Dispositif de raclage et de lavage
DE202005016941U1 (de) * 2005-10-28 2007-03-08 Schmitt, Michael Scheibenwischer für Fahrzeugscheiben
EP2181901A3 (fr) * 2008-10-29 2010-09-22 Robert Bosch GmbH Balais d'essuie-glace pour le nettoyage d'une vitre de véhicule
ES2643787A1 (es) * 2016-05-23 2017-11-24 Juan Carlos SAN JOSÉ TORRAS Escobilla limpiaparabrisas
WO2017203079A1 (fr) * 2016-05-23 2017-11-30 SAN JOSE TORRAS, Juan Carlos Balai d'essuie-glace
CN109131230A (zh) * 2018-09-17 2019-01-04 王致远 一种储水式汽车雨刮器
KR20210021700A (ko) * 2019-08-19 2021-03-02 김영돈 이물질 제거 브러쉬가 구비된 차량용 와이퍼
KR102241265B1 (ko) * 2019-08-19 2021-04-16 김영돈 이물질 제거 브러쉬가 구비된 차량용 와이퍼

Also Published As

Publication number Publication date
SE505404C2 (sv) 1997-08-18
SE9504293L (sv) 1997-05-31
AU3560997A (en) 1998-12-30
SE9504293D0 (sv) 1995-11-30

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