EP4149801A1 - Levier d'essuie-glace - Google Patents

Levier d'essuie-glace

Info

Publication number
EP4149801A1
EP4149801A1 EP21719566.8A EP21719566A EP4149801A1 EP 4149801 A1 EP4149801 A1 EP 4149801A1 EP 21719566 A EP21719566 A EP 21719566A EP 4149801 A1 EP4149801 A1 EP 4149801A1
Authority
EP
European Patent Office
Prior art keywords
wiper
valve
liquid
nozzles
nozzle
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Withdrawn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
EP21719566.8A
Other languages
German (de)
English (en)
Inventor
Andrija Terentic
Harald Rapp
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 EP4149801A1 publication Critical patent/EP4149801A1/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Withdrawn legal-status Critical Current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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3415—Wiper arms; Mountings therefor with means for supplying cleaning fluid to windscreen cleaners, e.g. washers
    • 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
    • B60S1/481—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means
    • B60S1/482—Liquid supply therefor the operation of at least part of the liquid supply being controlled by electric means combined with the operation of windscreen wipers
    • 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
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
    • B60S1/3862—Transport of liquid there through

Definitions

  • the invention relates to a wiper lever for cleaning a vehicle window by means of a movement in a first and a second direction, comprising a wiper blade, a wiper arm, an adapter for fastening the wiper blade to the wiper arm and a hydraulic system which supplies a liquid from a vehicle via the wiper arm directs the wiper blade to eject it through nozzles on the wiper blade, at least one nozzle being directed in the first direction and one nozzle being directed in the second direction.
  • valve is from the nozzle, the more time it takes to fill the emptied part of the line.
  • wiper lever can spray in two directions, with a valve being provided for one direction in each case, then it is advantageous if at least one direction is not subjected to any great delay.
  • the object of the present invention is to provide a hydraulic system for a wiper lever that ensures a very short reaction time of the nozzles.
  • first valve for the first direction in the flow direction of the liquid closer to the nozzles than a second valve for the second direction.
  • the lines extend from a reservoir with the pump for the liquid that is provided for cleaning to the nozzles.
  • the valves are arranged in the lines.
  • the line piece for the first valve, which is arranged between the nozzle and valve, is shorter than that of the second valve. This reduces the response time for ejecting the liquid in the first direction.
  • the movement for cleaning can be a pendulum movement of the wiper lever, the first direction being an upward wiping and the second direction being a downward wiping, the first valve allowing fluid to pass through to nozzles directed in the first direction, while the second valve is fluid to the Lets through nozzles which are directed in the second direction.
  • the nozzles spray liquid with a reduced reaction time, since the first valve is arranged directly on the adapter. This allows the response times to be matched when wiping up and down.
  • the second valve is not permeable to the liquid during a movement in the first direction, the first valve not being permeable to the liquid during a movement in the second direction. This can prevent unintentional emptying of the lines.
  • a particular development can include that the first valve is arranged in front of a fastening bracket of the wiper arm in the flow direction of the liquid, the fastening bracket extending transversely to the longitudinal extension of the wiper arm.
  • the fastening bracket engages around the adapter part on the wiper blade side and fixes the wiper blade on the wiper arm.
  • the valve is arranged in particular in a groove between the bracket and the wiper arm.
  • the liquid pump can be arranged with a reservoir for the liquid in the vehicle.
  • the first valve close to the nozzle and further adapting the distance of the first valve from the pump, the liquid can emerge from the nozzle for the first direction after a shorter time after actuation of the pump than from the nozzle for the second direction.
  • FIG. 1 shows a wiper lever 10 for cleaning a vehicle window by means of a pendulum movement, the movement taking place in a first and a second direction 1, 2.
  • the first direction 1 represents an upward wipe along the window, while the movement in the second direction represents a downward wipe.
  • the wiper lever 10 comprises a wiper blade 12, a wiper arm 14, an adapter 16 for fastening the wiper blade 12 to the wiper arm 14.
  • the adapter 16 comprises an adapter part on the blade side and an adapter part on the arm.
  • the arm-side adapter part has a fastening bracket 22 which engages around the blade-side adapter part when the wiper blade 12 is fastened to the wiper arm 14.
  • the invention according to the claims can also be applied to an adapter which does not have a fastening bracket 22.
  • a two-part blade-side adapter part can be provided, a part of the blade-side adapter part being movable.
  • a hydraulic system 18 is part of the wiper lever, the hydraulic system 18 having fluid lines 19, a reservoir for the fluid and a pump 24.
  • the pump 24 conveys a liquid from a vehicle through the Lines via the wiper arm 14 to the wiper blade 12 in order to expel it through nozzles 20 on the wiper blade 12.
  • At least two nozzles 20 are provided, at least one nozzle 20 being directed in the first direction 1 and one nozzle 20 in the second direction.
  • the nozzles can be formed in a rubber element, e.g. wiper rubber or spoiler, of the wiper blade 12 and / or in a separate nozzle unit which is attached to the wiper blade 12.
  • a heating element can also be provided which prevents the liquid from freezing, the heating element being arranged in the area of the nozzles and / or the lines.
  • a first valve 221, which controls the discharge of liquid in the first direction, is positioned closer to the nozzles 20 in the flow direction 3 of the liquid than a second valve 222, which controls the discharge of the liquid in the second direction 2.
  • the direction of flow of the liquid is directed from the reservoir and the pump 24 to the nozzles 20.
  • the first direction 1 represents an upward wiping.
  • the second direction 2 is carried out as a downward wiping.
  • the first valve 221 lets liquid through to nozzles 20 which are directed in the first direction 1. This takes place during the upward wiping, while the second valve 222, during the downward wiping, allows liquid to pass through to the nozzles which are directed in the second direction 2.
  • the liquid is sprayed directly in front of a wiper rubber of the wiper blade 12 so that it can be wiped away from the wiper blade promptly after application.
  • the two valves 221, 222 alternate during the wiping movements, so that when wiping upwards the first valve 221 is open and the second valve 222 is closed, while when wiping downwards the second valve is open and the first valve 221 is closed.
  • the spatially close position of the first valve 221 on the nozzles 20 can reduce the time until the liquid is ejected.
  • the time until the liquid is ejected can also be set by the length of the lines 19 from the pump 24 or the reservoir to the valves 221, 222. The closer the valve 221, 222 is to the pump 24 or the reservoir, the faster the liquid can reach the nozzle 20.
  • the first valve 221 is arranged upstream of the fastening bracket 22 of the wiper arm 14 in the direction of flow of the liquid, the fastening bracket 22 extending transversely to the longitudinal extension of the wiper arm 14.
  • the first valve 221 is arranged in a groove between the fastening bracket 22 and the wiper arm 14, the valve 221 being arranged on the side of the fastening bracket 22 that faces the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne un levier d'essuie-glace (10) destiné au nettoyage d'une vitre de véhicule au moyen d'un mouvement dans une première et une seconde direction. Le levier d'essuie-glace comprend un balai d'essuie-glace (12), un bras d'essuie-glace (14), un adaptateur (16) de fixation du balai d'essuie-glace (12) au bras d'essuie-glace (14), et un système hydraulique (18) qui conduit un liquide d'un véhicule vers le balai d'essuie-glace (12) par l'intermédiaire du bras d'essuie-glace (14) afin d'éjecter le liquide par l'intermédiaire de buses (20) sur le balai d'essuie-glace (12). Le levier d'essuie-glace présente au moins une buse (20) qui est orientée dans la première direction (1) et une buse (20) qui est orientée dans la seconde direction. Selon l'invention, une première soupape (221) pour la première direction est positionnée plus près des buses (20) dans la direction d'écoulement (3) du liquide qu'une seconde soupape (222) pour la seconde direction (2).
EP21719566.8A 2020-05-12 2021-04-13 Levier d'essuie-glace Withdrawn EP4149801A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202020102660.7U DE202020102660U1 (de) 2020-05-12 2020-05-12 Wischhebel
PCT/EP2021/059539 WO2021228479A1 (fr) 2020-05-12 2021-04-13 Levier d'essuie-glace

Publications (1)

Publication Number Publication Date
EP4149801A1 true EP4149801A1 (fr) 2023-03-22

Family

ID=71079647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21719566.8A Withdrawn EP4149801A1 (fr) 2020-05-12 2021-04-13 Levier d'essuie-glace

Country Status (6)

Country Link
US (1) US12024134B2 (fr)
EP (1) EP4149801A1 (fr)
CN (1) CN115461256A (fr)
DE (1) DE202020102660U1 (fr)
FR (1) FR3110125B1 (fr)
WO (1) WO2021228479A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143753A (en) * 1963-02-18 1964-08-11 Torelv Tore Samuel Rune Windshield wiper and washer assembly
BR0209595A (pt) * 2001-05-14 2006-01-17 Microheat Inc Sistema e método para limpeza ou desembaçamento de um pára-brisa
DE102010054687A1 (de) 2010-12-16 2012-06-21 GM Global Technology Operations LLC Scheibenwisch- und Wascheinrichtung für Kraftfahrzeuge
DE102013113691A1 (de) 2013-12-09 2015-06-11 Rehau Ag + Co. Scheibenwischeinrichtung zum Reinigen einer Fahrzeugscheibe, Fahrzeug und Verfahren zum Betreiben einer Scheibenwischeinrichtung
JP6973281B2 (ja) 2018-05-08 2021-11-24 株式会社デンソー 車両洗浄システム
DE102018213726A1 (de) 2018-08-15 2020-02-20 Robert Bosch Gmbh Wischvorrichtung

Also Published As

Publication number Publication date
WO2021228479A1 (fr) 2021-11-18
CN115461256A (zh) 2022-12-09
DE202020102660U1 (de) 2020-05-22
US20230174021A1 (en) 2023-06-08
FR3110125B1 (fr) 2023-07-21
FR3110125A1 (fr) 2021-11-19
US12024134B2 (en) 2024-07-02

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