EP0837798A1 - Dispositif permettant d'eliminer la glace et/ou la neige d'essuie-glaces - Google Patents

Dispositif permettant d'eliminer la glace et/ou la neige d'essuie-glaces

Info

Publication number
EP0837798A1
EP0837798A1 EP96926038A EP96926038A EP0837798A1 EP 0837798 A1 EP0837798 A1 EP 0837798A1 EP 96926038 A EP96926038 A EP 96926038A EP 96926038 A EP96926038 A EP 96926038A EP 0837798 A1 EP0837798 A1 EP 0837798A1
Authority
EP
European Patent Office
Prior art keywords
pressure chamber
ofthe
wiper arm
piston
window
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Withdrawn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
EP96926038A
Other languages
German (de)
English (en)
Inventor
Thor Anders Loftheim
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0837798A1 publication Critical patent/EP0837798A1/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Withdrawn legal-status Critical Current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
    • B60S1/0475—Cleaning of wiper blades
    • B60S1/0477—Arrangement for deicing or for removing debris from 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3413—Wiper arms; Mountings therefor with means for holding the arm off the glass in an intermediate position between the working position and the fully folded back position
    • 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
    • B60S1/0452—Position of the wipers relative to the vehicle
    • B60S1/0455—Device for lifting the wipers off the screen in its parking position or at extremes of wipe

Definitions

  • the present invention relates to a device for removing ice and/or snow from windshield wipers, particularly for use on relatively heavy vehicles, in accordance with the preamble of claim 1.
  • a number of devices of this type are known. Among these are the one described in US 2,784,438. Here, there is shown a device which raises the windshield wiper up from the window, in order thereafter to release the wiper so that snow and/or ice is knocked off the wiper blade.
  • the lifting ofthe windshield wiper arm is brought about by means of a solenoid mounted on the arm and operative between a fastening means for the solenoid and a bracket on the wiper arm.
  • the solenoid is electrically powered. This implies that it must be well sealed in order to prevent moisture and/or dust from penetrating into the mechanism and impairing its function as, for example, in the case of a short circuit.
  • a special bracket must be designed for the windshield wiper arm; this necessitates the replacement ofthe windshield wiper arm in cases where the solenoid is to be mounted after delivery on a vehicle which has not been equipped with such a device from the factory . . For this reason the device also becomes very expensive for post-delivery installation.
  • US 4,309,789 also shows an apparatus that utilizes compressed air to remove ice and/or snow from the windshield wiper blade.
  • compressed air is supplied to an internal duct running along the length ofthe windshield wiper blade, which causes the windshield wiper blade to inflate, almost like a balloon, and the snow and/or ice will thereby be loosened.
  • the wiper blade will also be quite vulnerable to damage, since merely a single crack extending from the surface ofthe blade into the duct will puncture the duct and impair the snow and ice removing function. Considering how frequently it is necessary to change a common windshield wiper blade, this device would have to be very uneconomical for use over a long period of time.
  • Figure 1 is a side view ofthe device, from a first direction
  • Figure 2 is a side view ofthe device, from a direction perpendicular to the first direction
  • Figure 3 is a top view of the device
  • Figure 4 is a cross-sectional view ofthe device
  • Figure 5 is a view ofthe device moimted in conjunction with a windshield wiper arm.
  • the device 1 is shown in Figures 1 and 5 mounted in connection with a windshield wiper arm 20, which is illustrated in cross section in Figure 1.
  • the device consists of a housing 2 and a foot 3. Projecting from an opening 4 at the top of housing 2 is a piston 5 (see Figure 4). Fastened to the top of piston 5 by means of a screw 6 is a lifting hook 7.
  • the lifting hook 7 is provided at its outermost end with a lifting member 8.
  • a high pressure chamber 9 Inside housing 2 on one ofthe sides of piston 5 is formed a high pressure chamber 9, and on the other side of piston 5 is formed a low pressure chamber 10.
  • High pressure chamber 9 is supplied with compressed air via a compressed air duct 11.
  • a return spring 12 In low pressure chamber 10 is positioned a return spring 12, which urges piston 5 into housing 2 when the compressed air in high pressure chamber 9 is released.
  • An O-ring seal 13 ensures that dust and moisture do not penetrate into housing 2.
  • the device 1 may be placed with foot 3 against the body 21 of a vehicle.
  • Device 1 is arranged such that lifting member 8 is situated underneath a section of windshield wiper arm 20.
  • the entire device if space permits, may be placed between the vehicle body 21 and the windshield wiper arm 20.
  • the screw 6, or optionally a suitable striking member mounted thereon, will form the thrust surface against the wiper arm 20.
  • the compressed air duct 11 may be connected in a practical manner via a suitable valve (not shown) to a compressed air system already existing in the vehicle.
  • the valve may be, for example, electrically powered and may be situated inside the driver's cabin.
  • the vehicle driver may operate a switch, preferably several times in succession, and thereby send a plurality of compressed air pulses to the high pressure chamber 9.
  • the piston will thereby be thrust out ofthe housing with great force, and will thus lift the wiper arm 20, thereby bringing wiper blade 22 out of contact with the window pane 23.
  • the return spring 12 will ensure that the piston 5 is returned to its original position in housing 2 when the presssure in high pressure chamber 9 has dropped sufficiently.
  • a plurality of successive operations ofthe valve will cause piston 5 to be lifted and returned to its original position several times in succession, and ice and snow will thereby be knocked off the windshield wiper blade 22 in a very effective manner, as the blade repeatedly strikes against the window pane 23.
  • a small compressor In vehicles without an internal compressed air system, a small compressor must be mounted after delivery for the operation ofthe ice/snow removal device.
  • the device may also be designed for attachment to a vacuum, e.g., the vehicle's vacuum brake booster. In that case, the vacuum will have effect on the low pressure chamber 10, while the high pressure chamber 10 remains below atmospheric pressure.
  • Piston 5 may also be designed with adjustable length to adapt to various spacing relationships between the vehicle body and the wiper arm.
  • the device may also be adhered securely to the vehicle window pane and thereby be operative between the window pane and the wiper arm, or it may be integrated into the vehicle body with factory installation.
  • the device components could basically be made of plastic, e.g., POM.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Regulating Braking Force (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

L'invention porte sur un dispositif (1) permettant d'éliminer la glace et/ou la neige d'essuie-glaces, utilisable notamment, dans des véhicules relativement lourds. Ce dispositif est du type destiné à faire se relever le porte-balai d'essuie-glace (20), ce qui amène le balai d'essuie-glace (22) à se désolidariser du pare-brise du véhicule (23), le porte-balai d'essuie-glace (20) revenant ensuite à sa position première de sorte que le balai d'essuie-glace (22) heurte le pare-brise (23) et que, par le fait, la glace et/ou la neige s'en détachent. Le dispositif (1) comporte un cylindre pneumatique (2) et un piston (5) susceptible de se mouvoir dans ce cylindre, lui-même subdivisé en chambre haute pression (9) et chambre basse pression (10). La chambre haute pression (9) peut éventuellement se trouver à une pression supérieure à celle de la chambre basse pression (10) par compression d'air ou création d'une dépression, afin de faire se déplacer le piston (5) dans une première direction, ce qui amène le porte-balai d'essuie-glace (20) à s'éloigner du pare-brise (23). La chambre basse pression (10) est pourvue d'un ressort de rappel (12) destiné à faire revenir le piston (5) dans une seconde direction opposée afin de laisser le porte-balai d'essuie-glace (20) aller vers le pare-brise (23) lorsque il n'existe plus de différence de pression entre la chambre haute pression (9) et la chambre basse pression (10). Ce dispositif (1) est conçu pour se positionner de manière à fonctionner entre le corps (21) ou le pare-brise (23) du véhicule et le porte-balai (20).
EP96926038A 1995-07-19 1996-07-19 Dispositif permettant d'eliminer la glace et/ou la neige d'essuie-glaces Withdrawn EP0837798A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO952875 1995-07-19
NO952875A NO952875L (no) 1995-07-19 1995-07-19 Pneumatisk isfjerner for vindusviskere
PCT/NO1996/000188 WO1997003867A1 (fr) 1995-07-19 1996-07-19 Dispositif permettant d'eliminer la glace et/ou la neige d'essuie-glaces

Publications (1)

Publication Number Publication Date
EP0837798A1 true EP0837798A1 (fr) 1998-04-29

Family

ID=19898416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96926038A Withdrawn EP0837798A1 (fr) 1995-07-19 1996-07-19 Dispositif permettant d'eliminer la glace et/ou la neige d'essuie-glaces

Country Status (6)

Country Link
EP (1) EP0837798A1 (fr)
JP (1) JPH11509497A (fr)
AU (1) AU6634196A (fr)
CA (1) CA2227242A1 (fr)
NO (1) NO952875L (fr)
WO (1) WO1997003867A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104691502A (zh) * 2014-07-14 2015-06-10 昆山昱国机械设备有限公司 一种雨刷自动顶高装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717408A (en) * 1954-08-30 1955-09-13 Page Alfred P Le Windshield blade de-icer
US2784438A (en) * 1954-09-08 1957-03-12 Lee B Petersen Windshield wiper arm operating mechanism
US4309789A (en) * 1980-09-11 1982-01-12 Ziner Erwin N Self-deicing windshield wiper
FR2604405B1 (fr) * 1986-09-29 1990-05-11 Delluc Rene Dispositif de lavage et de degivrage automatique des pare-brise de vehicules automobiles
DE4202965C1 (en) * 1992-02-01 1993-01-28 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Windscreen wiper blade for vehicle - is lifted off screen in park position by lifting arm carried clear of area swept by blade
FR2724351B1 (fr) * 1994-09-14 1997-04-11 Peugeot Ensemble de balai d'essuie-glace a usure reduite en position d'arret, pour vehicule automobile
US5487204A (en) * 1994-11-28 1996-01-30 Nelson; Steven M. Windshield wiper with deicer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9703867A1 *

Also Published As

Publication number Publication date
CA2227242A1 (fr) 1997-02-06
AU6634196A (en) 1997-02-18
NO952875D0 (no) 1995-07-19
JPH11509497A (ja) 1999-08-24
NO952875L (no) 1997-01-20
WO1997003867A1 (fr) 1997-02-06

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