WO2002012033A1 - Systeme d'essuie-glace, notamment pour automobile - Google Patents

Systeme d'essuie-glace, notamment pour automobile Download PDF

Info

Publication number
WO2002012033A1
WO2002012033A1 PCT/EP2001/008769 EP0108769W WO0212033A1 WO 2002012033 A1 WO2002012033 A1 WO 2002012033A1 EP 0108769 W EP0108769 W EP 0108769W WO 0212033 A1 WO0212033 A1 WO 0212033A1
Authority
WO
WIPO (PCT)
Prior art keywords
wiper
wiper device
arm
section
arm section
Prior art date
Application number
PCT/EP2001/008769
Other languages
German (de)
English (en)
Inventor
Bruno Egner-Walter
Original Assignee
Valeo Auto-Electric Wischer Und Motoren 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
Priority claimed from DE2000138404 external-priority patent/DE10038404A1/de
Priority claimed from DE2000138394 external-priority patent/DE10038394A1/de
Application filed by Valeo Auto-Electric Wischer Und Motoren Gmbh filed Critical Valeo Auto-Electric Wischer Und Motoren Gmbh
Publication of WO2002012033A1 publication Critical patent/WO2002012033A1/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
    • B60S1/04—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
    • B60S1/38—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
    • B60S1/3848—Flat-type wiper blade, i.e. without harness
    • B60S1/3874—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra
    • B60S1/3875—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section
    • 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
    • B60S2001/3825—Means of supporting or holding the squeegee or blade rubber the squeegee mounted directly to or in wiper blade arm

Definitions

  • Wiper device in particular for motor vehicles
  • the invention relates to a wiper device, in particular for cleaning a window of a motor vehicle, with a wiper arm, with a drivable component arranged at one end of the wiper arm and with a wiper blade provided at the other end of the wiper arm, which has a wiper rubber with one of the windows to be wiped facing wiper lip and a band-shaped, resilient support element extending in the longitudinal direction of the wiper blade.
  • the support element ensures an optimal distribution of the wiper blade contact pressure emanating from the wiper arm on the window to be wiped.
  • the support element is pre-bent in the unloaded state, that is, if the wiper blade is not in contact with the window, and has a curvature that is dependent, inter alia, on the curvature of the window to be wiped.
  • the support element of such a wiper device thus replaces the complex support bracket construction with two spring rails arranged on the wiper rubber, as has become known, for example, from DE 1 505 397.
  • the wiper devices according to the type described at the outset have two components which can be moved and are usually releasable, namely the wiper arm and the wiper blade.
  • a disadvantage of such a wiper device in which the end of the wiper arm facing the wiper blade articulates the wiper blade in the middle, is that the wiper device has a construction height that should not be neglected. This overall height leads to an undesirably high air resistance, in particular at higher vehicle speeds, which is why the drive motor driving the wiper device has a correspondingly high output. In addition, unwanted wind noise can occur. Furthermore, the manufacture and assembly of such a wiper device consisting of several components is correspondingly complex and expensive.
  • a wiper device of the type described in the introduction in that the resilient support element is formed by the wiper arm extending in the longitudinal direction, so that the wiper device has an arm section facing the drivable component and a blade section carrying the wiper rubber.
  • a wiper device has the particular advantage that it consists of only one basic component, namely the wiper arm forming the support element, only the wiper rubber being arranged on the support element.
  • the wiper device can be designed according to the invention to be very flat and therefore favorable in terms of flow technology.
  • Such a wiper device according to the invention can also be used in particular for wiping vehicle rear windows.
  • the wiping device in particular on the arm portion having stiffeners.
  • the part of the arm section facing the drivable component is U-shaped.
  • the legs of the U section can advantageously have cutouts. These cutouts can be used, for example, to receive a hinge pin, so that the wiper device is arranged so as to be pivotable about the axis of such a hinge pin.
  • the arm section and the support element of the leaf section are in one piece and made of the same material, preferably of spring steel.
  • the arm section and the carrying element can be one and the same component, which means that considerable costs can be saved, particularly in series production.
  • the support element has two spring rail sections that run largely parallel to one another, preferably lying in one plane, the mutually facing edges of the spring rail sections being largely in Limit the longitudinal direction parallel space, and wherein the squeegee two longitudinally extending longitudinal grooves for receiving the
  • Such an arrangement of the squeegee on the support element has proven particularly advantageous in practice in particular because a relative movement is possible between the support element and the squeegee. This relative movement is necessary in particular in the case of curved panes to be wiped in order to achieve a satisfactory wiping result.
  • the arm section is also formed by the two spring rail sections. This advantageously eliminates a special design of the arm section, which can lead to considerable cost savings.
  • the spring rail sections have a largely identical base area. This considerably reduces the effort required to produce the corresponding spring rails.
  • the intermediate space is open at the end of the leaf section facing away from the arm section.
  • Securing spring rail sections can be provided according to the invention that a delimiting part delimiting the interspace can be provided for delimiting the open end of the interspace.
  • locking bays can be provided on the ends of the spring rails facing away from the arm section.
  • the limiting part then has latching hubs which can be latched into the latching bays, so that the limiting part can be connected releasably or non-releasably to the two spring rail sections in a functionally reliable manner.
  • the intermediate space at the end of the wiper blade facing away from the wiper arm is enclosed by the spring rail sections, the intermediate space preferably having an insertion extension for introducing the wiper rubber into the intermediate space. In this way, a corresponding delimitation part is not necessary, as a result of which the wiper device according to the invention can be reduced overall.
  • the insertion extension has larger dimensions than the wiper rubber back facing away from the window.
  • the squeegee can be guided through the insertion extension to arrange the squeegee, which is possible in a simple and uncomplicated manner.
  • the arm section can be pivoted and / or folded down relative to the drivable component. As a result, the windshield to be wiped can be cleaned by hand, for example, without the wiping device interfering with the windshield to be wiped.
  • a further development of the invention according to which the U-shaped arm section is open in the direction of the window to be wiped, has the advantage that it forms a protection or a cover for components arranged underneath it and additionally also a protection against injuries without using a additional cover cap causes.
  • the U-shaped arm section is open in the direction pointing away from the pane, the open side preferably being covered by a cover part.
  • the particular advantage here is that the support element or the spring rail sections are already arranged very close to the pane, that is to say at a low height above the surface to be wiped. This results in a particularly low overall height.
  • the U-shaped section, which is open at the top, also achieves very good stiffness of the wiper device against, in particular, transverse forces.
  • the cover part in particular prevents dirt or moisture from penetrating into the area between the two side walls and the web of the wiper arm. Such dirt or moisture can adversely affect the energy storage.
  • the cover part advantageously engages around the side walls at least in sections, as a result of which any sharp edges of the U-shaped section of the wiper arm are covered.
  • the cover part engages behind the side walls at least in sections. Such a gripping behind enables a clamping connection between the cover part and the U-shaped section of the wiper arm, as a result of which no additional means for fastening the cover part are required.
  • the wiper device comprises an energy storage element which presses the wiper arm with the wiper blade in the direction of the window.
  • the energy storage element engages on the one hand on the component, preferably on a first holding element arranged on the component, and on the other hand on the arm section, preferably on a second holding element arranged on at least one of the side walls of the U-shaped arm section.
  • This arrangement of the energy storage element also contributes to a very flat overall height of the wiper device.
  • the second holding element is arranged on one of the side walls of the U-shaped section of the wiper arm, a wiper device consisting of very few individual parts is realized, which can be manufactured in a simple manner.
  • An advantageous embodiment of the invention is characterized in that the first holding element is arranged in the area of the hub part facing the disk and that the second holding element is arranged in the area of the at least one side wall remote from the web.
  • the first holding element comprises a bolt-like shoulder arranged on the hub part.
  • Such a paragraph is characterized as a point of attack for the energy storage.
  • the second holding element comprises a web, preferably in the form of a bolt, extending from one side wall to the other side wall of the U-shaped section.
  • a web offers a favorable point of attack for the energy store, with a uniform force distribution taking place on both side walls due to the support of the web.
  • the energy store is advantageously a tension spring.
  • the arm section is formed in one piece with the drivable component. It is also conceivable that the drivable component includes the arm section. Further advantageous refinements and details of the invention can be found in the following description, in which the invention is described and explained in more detail with reference to the exemplary embodiments shown in the drawing.
  • Fig. 2 is a plan view of an inventive
  • Wiper device without drivable component and wiper rubber
  • Fig. 3 shows a different wiper blade section
  • the wiper device 1 shown in FIG. 1 for cleaning a rear window of a motor vehicle has a wiper arm 2 with a wiper blade 3.
  • the wiper arm 2 is divided into an arm section 2 'and a blade section 3 ⁇ .
  • At one end of the arm section 2 ' is a drivable component 4 arranged, which can be pivotally driven via a conical bore 5 along the pivot axis 6 by a drive motor, not shown.
  • the part of the arm section 2 ′ facing the drivable component 4 is U-shaped.
  • Cylinder bores for receiving a joint pin 29 which can be coupled to the drivable component 4 are attached.
  • the arm section 2 'together with the sheet section 3' can be pivoted or folded down along the axis of the pivot pin 29.
  • a tension spring is arranged as an energy storage element 10, which presses the leaf section 3 'against the disk, not shown.
  • the two side walls 9 of the arm section 2 ' are designed as stiffeners 7 and are used in particular for torsion stiffening of the wiper device 1.
  • Fig. 1 From Fig. 1 it can also be clearly seen that the support element 13 is pre-bent in the form of the two spring rail sections in the unloaded state shown in Fig. 1, in order to ensure an optimal distribution of the wiper blade contact pressure on the window, not shown, to be wiped.
  • the blade section 3 'of the wiper device 1 has a carrying element in the form of two spring rail sections 13 which run largely parallel to one another.
  • the mutually facing edges 14 of the spring rail sections 13 form a largely parallel longitudinal space 17, which can also be seen in FIG. 3.
  • the intermediate space 17 is provided for receiving the squeegee 18, which has two longitudinal grooves 34 extending in the longitudinal direction for receiving the spring rail sections 13.
  • the wiper rubber 18 has a wiper lip 19 on its side facing the window, not shown. Although not shown, it is conceivable that the wiper rubber 18 has a spoiler-like approach on the side facing away from the window.
  • the support element in the form of the two spring rails 13 is formed by the longitudinal web 12 of the arm section 2 'which extends in the longitudinal direction.
  • the arm section 2 'and the support element in the form of the two spring rails 13 are in one piece and made of the same material, namely spring steel.
  • the spring rail sections 13 have a largely identical base area.
  • the embodiment of the invention shown in FIG. 2 is distinguished, inter alia, by the fact that the intermediate space 17 is open at the end of the sheet section 3 'facing away from the arm section 2'.
  • the squeegee 18 or the spring rail sections 13 can be easily and Be axially inserted into the existing on the squeegee 18 longitudinal grooves 34.
  • the wiper device 1 shown in FIG. 1 shows a limiting part 22 delimiting the intermediate space 17.
  • latching bays 23 are provided in the form of rectangular recesses into which latching lugs (not shown) on the limiting part 22 can be latched.
  • the insertion extension 32 has the width a.
  • the squeegee 18 shown in FIG. 4 has a squeegee back 33 with the width b and the two longitudinal grooves 34 extending in the longitudinal direction, parallel to one another, for receiving the two
  • the width b of the squeegee 33 is smaller than the width a of the insertion extension 22, so that the squeegee 18 can be inserted into the space 17 via the insertion extension 32.
  • the arm portion is formed integrally with the driven ⁇ 2 component 4, or that the drivable component 4 includes the arm portion 2 '.
  • the arm section 2 'does not have a web 12, but is formed by the two spring rail sections 13.
  • the wiper device 1 shows another wiper device 1 for cleaning a window, not shown, of a motor vehicle.
  • the wiper device 1 comprises a component 4, referred to as a hub part, which has a receptacle in the form of a cylindrical bore 5 for a wiper shaft, not shown.
  • the hub part 4 is connected to a wiper arm 2 via a joint 30.
  • the wiper arm 2 has at its end facing the hub part 4 a U-shaped arm section 2 'with two side walls 9 and a web 12 connecting the side walls to one another.
  • the open side of the U-shaped arm section 2 faces in the direction facing away from the pane.
  • the wiper device 1 also has a wiper blade 3, consisting of a resilient support element 13 and a wiper rubber 18 with a wiper lip 19 facing the window.
  • the wiper arm 2 is connected to a free end of the wiper blade 3, the web 12 being formed in one piece with the carrying element 13 in order to reduce the parts of the wiper device 1.
  • the support element 3 thus forms the sheet section 3 '.
  • the U-shaped arm section 2 ′ of the wiper arm 2 is designed such that the side walls 9 protrude beyond the web 12 in the region of the component 4 and each have a cylindrical bearing bore for receiving a joint pin that belongs to the joint 30. This enables the wiper arm 2 with the wiper blade 3 to be folded down in the direction facing away from the window.
  • 5 shows a partial section, the stris edge of the side wall 9 is shown in dashed lines in the area of the hub part 4.
  • an energy storage element 10 namely a tension spring
  • the tension spring acts on the one hand on a first holding element 42 arranged on the component 4 and on the other hand on a second holding element 43 arranged on the side walls 9 of the arm section 2 '.
  • the first holding element 42 comprises a bolt-like shoulder arranged on the component 4.
  • the second holding element 43 comprises a bolt which extends from one side wall 9 to the other.
  • the bolt is of circular cylindrical design and is pressed into two bores in the side walls 9 corresponding to the bolt diameter.
  • the end of the tension spring 10 which cooperates with the holding element 43 is advantageously designed such that it can be gripped around the bolt.
  • the first holding element 42 is in the area of the component 4 facing the window and the second holding element 43 is in the Web 12 remote region of the side walls 9 arranged.
  • the side walls 9 of the arm section 2 ' are designed such that their height decreases steadily in the direction of the sheet section 3' and is zero when the sheet section 3 'is reached.
  • a cover part 24 is provided which, as can be seen clearly from FIGS. 6 and 7, engages both around and behind the side walls 9.
  • the sections 27 engaging behind the side walls 9 act as latching lugs which ensure that the cover part 24 is securely attached to the U-shaped arm section 3 '. 5 that the cover part 24 is flush with the end of the wiper rubber 18 facing the cover part 24.
  • the cover part 24 has a spoiler-like section which, in particular at higher vehicle speeds, additionally increases the contact pressure of the wiper blade 3 on the window.
  • the side walls 9 are formed only in the area in which the energy storage element 10 engages on the holding element 43 on the wiper arm 2. As a result, the wiper device according to the invention can be made even flatter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne un système d'essuie-glace, servant notamment à nettoyer une vitre d'une automobile. Ce système d'essuie-glace comprend un bras d'essuie-glace (2), un composant (4), qui peut être entraîné et qui est situé à une extrémité du bras d'essuie-glace (2), ainsi qu'une raclette d'essuie-glace (3), qui est située à l'autre extrémité du bras d'essuie-glace (2). Cette raclette d'essuie-glace présente une lame d'essuie-glace en élastomère (18), qui comprend une lèvre d'essuie-glace (19), faisant face à la vitre devant être essuyée, ainsi qu'un élément de support (13), en forme de bande, élastique et s'étendant dans la direction longitudinale du bras d'essuie-glace (2). Cette invention est caractérisée en ce que l'élément de support (13) est constitué du bras d'essuie-glace (2) s'étendant en direction longitudinale, de façon que le système d'essuie-glace présente une partie de bras (2') qui fait face au composant pouvant être entraîné (4) et une partie de raclette (3') qui porte la lame d'essuie-glace en élastomère (18).
PCT/EP2001/008769 2000-08-07 2001-07-28 Systeme d'essuie-glace, notamment pour automobile WO2002012033A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2000138404 DE10038404A1 (de) 2000-08-07 2000-08-07 Wischvorrichtung, insbesondere für Kraftfahrzeuge
DE10038404.8 2000-08-07
DE2000138394 DE10038394A1 (de) 2000-08-07 2000-08-07 Wischvorrichtung
DE10038394.7 2000-08-07

Publications (1)

Publication Number Publication Date
WO2002012033A1 true WO2002012033A1 (fr) 2002-02-14

Family

ID=26006626

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/008769 WO2002012033A1 (fr) 2000-08-07 2001-07-28 Systeme d'essuie-glace, notamment pour automobile

Country Status (1)

Country Link
WO (1) WO2002012033A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375273A2 (fr) * 2002-06-21 2004-01-02 Robert Bosch Gmbh Dispositif d'essuie-glace
WO2004056626A1 (fr) * 2002-12-19 2004-07-08 Robert Bosch Gmbh Ensemble bras d'essuie-glace comportant un bras d'essuie-glace et une raclette d'essuie-glace
US8881337B2 (en) 2008-07-11 2014-11-11 Federal-Mogul S.A. Windscreen wiper device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB524720A (en) * 1939-02-04 1940-08-13 Lucas Ltd Joseph Improvements relating to vehicle wind screen wipers
DE1505397A1 (de) 1965-05-07 1969-10-30 Bosch Gmbh Robert Scheibenwischer fuer Fahrzeuge
US3480986A (en) * 1966-09-16 1969-12-02 Walter D Appel Integral windshield wiper and arm construction
FR2566726A1 (fr) * 1984-06-28 1986-01-03 Michel Dominique Lame d'essuyage souple

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB524720A (en) * 1939-02-04 1940-08-13 Lucas Ltd Joseph Improvements relating to vehicle wind screen wipers
DE1505397A1 (de) 1965-05-07 1969-10-30 Bosch Gmbh Robert Scheibenwischer fuer Fahrzeuge
US3480986A (en) * 1966-09-16 1969-12-02 Walter D Appel Integral windshield wiper and arm construction
FR2566726A1 (fr) * 1984-06-28 1986-01-03 Michel Dominique Lame d'essuyage souple

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375273A2 (fr) * 2002-06-21 2004-01-02 Robert Bosch Gmbh Dispositif d'essuie-glace
EP1375273A3 (fr) * 2002-06-21 2005-08-10 Robert Bosch Gmbh Dispositif d'essuie-glace
WO2004056626A1 (fr) * 2002-12-19 2004-07-08 Robert Bosch Gmbh Ensemble bras d'essuie-glace comportant un bras d'essuie-glace et une raclette d'essuie-glace
CN100408394C (zh) * 2002-12-19 2008-08-06 罗伯特-博希股份公司 雨刷杆
US8881337B2 (en) 2008-07-11 2014-11-11 Federal-Mogul S.A. Windscreen wiper device
EP2143602B2 (fr) † 2008-07-11 2019-12-11 Federal-Mogul S.A. Dispositif d'essuie-glace

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