WO2001089894A1 - Wischblatt zum reinigen von scheiben insbesondere von kraftfahrzeugen - Google Patents
Wischblatt zum reinigen von scheiben insbesondere von kraftfahrzeugen Download PDFInfo
- Publication number
- WO2001089894A1 WO2001089894A1 PCT/DE2001/001117 DE0101117W WO0189894A1 WO 2001089894 A1 WO2001089894 A1 WO 2001089894A1 DE 0101117 W DE0101117 W DE 0101117W WO 0189894 A1 WO0189894 A1 WO 0189894A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiper blade
- leg
- spring
- wiper
- hinge pin
- Prior art date
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
- B60S1/40—Connections between blades and arms
- B60S1/4006—Connections between blades and arms for arms provided with a hook-shaped end
- B60S1/4009—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end
-
- 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
- B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
-
- 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
- B60S1/40—Connections between blades and arms
- B60S1/4006—Connections between blades and arms for arms provided with a hook-shaped end
-
- 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
- B60S1/40—Connections between blades and arms
- B60S1/4006—Connections between blades and arms for arms provided with a hook-shaped end
- B60S1/4009—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end
- B60S1/4016—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end the element being provided with retention means co-operating with the hook-shaped end of the arm
- B60S1/4019—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end the element being provided with retention means co-operating with the hook-shaped end of the arm the retention means being protrusions or holes
Definitions
- the invention is based on a wiper blade according to the preamble of claim 1.
- the spring means are formed by a tension spring attached to the main bracket at one end, the other end of which is held on the outermost pendulum-axis-dependent claw bracket that holds the wiper strip.
- the tension spring is positioned and designed in such a way that it pulls the end of the wiper strip, which is distant from the pendulum axis, beyond the contact pressure emanating from the wiper arm towards the pane, and thus also loads the pane, especially when the vehicle spheres that are most spherically curved in the edge or corner regions are swept over. This should also allow these areas of the windshield, which are considered problem areas, to be properly cleaned.
- the leg spring is considerably compact and comparatively light, so that the loads acting on the drive unit of the wiper device during wiping operation are significantly reduced.
- Their arrangement in the area of the hinge pin also contributes to this, as a result of which the center of gravity of the wiper blade is shifted toward the pendulum axis.
- the main bracket has two spaced-apart cheeks, on which the ends of the hinge pin are held and between the cheeks on the hinge pin, a connection adapter matched to the free end of the wiper arm is supported in a pendulum manner, one leg being immersed in a recess in the adapter and the other leg is attached to one of the two cheeks, the leg spring is positioned essentially in a space between the cheeks and delimited by the wiper arm acting on the adapter and is therefore practically invisible.
- the other leg of the leg spring expediently engages under the one cheek with a shoulder, so that the wiper blade half remote from the pendulum axis is loaded towards the window if the leg spring is appropriately preloaded.
- a reliable securing of the leg spring in its operating position is achieved by fixing the attachment of the other spring leg in a recess in the cheek of the main bow.
- FIG. 1 shows a plan view of a wiper blade according to the invention with the associated wiper arm
- FIG. 2 shows a partial side view of the wiper blade according to FIG. 1 in the direction of arrow II, seen in an enlarged view
- FIG. 3 shows a partial section through the main bracket of the wiper blade 5
- FIG. 4 shows the sectional areas of a cross section through the main bracket according to FIG. 3 along the line IV-IV with the drawn end of the other leg of a leg spring
- FIG. 5 the sectional area of a cross section through the main bracket according to Figure 3 along the line VV with the position indicated by the line III-III of the section III-III according to Fig. 3
- Figure 6 is a scale perspective view of a connecting adapter belonging to the wiper blade for connecting the wiper blade with the wiper arm.
- a wiper blade 10 shown in FIGS. 1 and 2 has a support bracket system 12 which is known per se and which is constructed from a plurality of support brackets which are connected to one another in an articulated manner. It has a superordinate main bracket 14, at the ends of which subordinate claw brackets 16 are articulated. The main bracket 14 is thus located in the central section of the support bracket system.
- the claw brackets 16 grip with claws 18 an elongated, rubber-elastic wiper strip 20, which is applied with its wiper lip to the surface of a windshield 22 of a motor vehicle to be wiped.
- the main bracket 14 has two spaced-apart side cheeks 24, on each of which one end of a hinge pin 26 is held.
- the hinge pin is arranged in the middle section of the main bracket 14 and extends transversely to the longitudinal extent of the wiper blade 10 or the main bracket.
- the hinge pin 26 is used for the articulated connection of the wiper blade 10 to a wiper arm 28 driven in a pendulum manner about a pendulum axis 34 in the direction of the double arrow 35.
- the wiper arm 28 is located at the end of the wiper arm facing away from the wiper blade or from the hinge pin 26. Arrangements of this type are generally known to the person skilled in the art, for example from D ⁇ -OS 15 05 257. As FIG. 1 shows, the wiper blade 10 which is articulated to the wiper arm 28 thus has an end 30 near the pendulum axis and an end 32 remote from the pendulum axis.
- the free end of the wiper arm 28 facing away from the pendulum axis 34 is curved like a hook (FIG. 2). It thus merges into a first hook leg 36, which is followed by a curved section 38, which in turn merges into a second hook leg 40.
- This wiper arm hook 36, 38, 40 forms the part of a wiper arm
- the adapter 42 made of an elastic plastic is shown in perspective in FIG. It has a block-like body 44 with a bearing bore 46 which is matched to the diameter of the hinge pin 26.
- the bearing bore itself is open at the edge via an insertion channel 48 to the underside 50 of the body 44.
- the width 42 of the adapter is so matched to the distance 54 (FIG. 4) between the two cheeks 24 of the main bracket 14 that it can be positioned between these cheeks with as little play as possible.
- the adapter 42 with its insertion channel 48 is placed on the hinge pin 26 and is snapped into the bearing bore with an elastic widening of the insertion channel 48 converging towards the bearing bore 46.
- the coordination between the diameter of the hinge pin 26 and the bearing bore 46 is such that the connection adapter 42 can swing around the longitudinal axis of the hinge pin with as little play as possible.
- the plastic adapter 42 is provided with a locking tooth 58 (FIG. 6) which engages in a recess in the wiper arm assigned to it when the wiper blade 10 is articulatedly connected to the wiper arm 28 in the manner shown in FIG.
- FIGS. 3 and 5 show that a leg spring 60 is arranged on the side of the adapter 42 facing the pendulum axis 34. This leg spring has a helical compression spring-like spring body 62 having a plurality of turns.
- each end turn merges into a spring leg 64 or 66 which overlaps each extend essentially tangentially from an end turn away from the spring body 62.
- this leg spring which can be referred to as a torsion spring, can also be preloaded.
- one relatively short spring leg 64 is introduced into a bore 68 in the adapter 42, while the other, longer spring leg 66 with an attachment 70 (FIG. 4) arranged at its free end engages under one cheek 24 of the main bracket 14. It is essential that the shoulder 70 engages under a shoulder of the cheek 24 which faces the disk 22.
- the point of attack of the spring leg 66 or of the attachment 70 on the cheek 24 is - based on the hinge pin 26 - on the side of the main bracket 14 facing the pendulum axis end 30 of the wiper blade 14.
- the spring body 62 is supported its entire length in a groove 72 of the adapter, which extends parallel to the hinge pin 26 or parallel to the bearing bore 46 over the entire width 52 of the adapter between the cheeks 24.
- the shoulder 70 of the spring leg 66 lies in an open-ended recess 74 on the underside of the cheek 24.
- the pretension of the leg spring is such that the spring leg 66 with its Approach 70 loads the main bracket 14 in the direction of arrow 76 (FIG. 3), so that the wiper blade 10 attempts to rotate in the direction of arrow 78 about the hinge axis of the bearing pin 26.
- the wiper blade 10 according to the invention is thus provided with spring means which are designed as leg springs 60.
- One spring leg 60 is supported - since it dips into the recess 68 - indirectly in the exemplary embodiment from the adapter on the hinge pin 26, while the other leg 66 is fixed to the half of the main bracket 14 near the pendulum axis.
- leg spring preload - it is thus possible in a simple manner - for example by changing the leg spring preload - to adapt the additional load on the wiper blade half remote from the pendulum axis to the respective requirements, for example depending on the vehicle type.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01923527A EP1289808A1 (de) | 2000-05-25 | 2001-03-22 | Wischblatt zum reinigen von scheiben insbesondere von kraftfahrzeugen |
JP2001586101A JP2003534194A (ja) | 2000-05-25 | 2001-03-22 | 特に自動車のウインドガラスを洗浄するためのワイパブレード |
US10/049,713 US6684449B2 (en) | 2000-05-25 | 2001-03-22 | Wiper blade with spring bias |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10025722A DE10025722A1 (de) | 2000-05-25 | 2000-05-25 | Wischblatt zum Reinigen von Scheiben insbesondere von Kraftfahrzeugen |
DE10025722.4 | 2000-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001089894A1 true WO2001089894A1 (de) | 2001-11-29 |
Family
ID=7643401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/001117 WO2001089894A1 (de) | 2000-05-25 | 2001-03-22 | Wischblatt zum reinigen von scheiben insbesondere von kraftfahrzeugen |
Country Status (5)
Country | Link |
---|---|
US (1) | US6684449B2 (de) |
EP (1) | EP1289808A1 (de) |
JP (1) | JP2003534194A (de) |
DE (1) | DE10025722A1 (de) |
WO (1) | WO2001089894A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4920240B2 (ja) * | 2005-10-27 | 2012-04-18 | 日本ワイパブレード株式会社 | ワイパーブレード用結合部材 |
DE102008042236A1 (de) * | 2008-09-19 | 2010-04-01 | Robert Bosch Gmbh | Anschlussvorrichtung zum gelenkigen Verbinden eines Wischblatts |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888702A (en) * | 1955-07-22 | 1959-06-02 | Gen Motors Corp | Windshield wiper blade assembly |
FR2216152A1 (de) * | 1973-02-06 | 1974-08-30 | Trico Folberth Ltd | |
US4187576A (en) * | 1977-12-15 | 1980-02-12 | Trico Products Corporation | Wiper blade |
FR2437959A1 (fr) * | 1978-10-04 | 1980-04-30 | Sev Marchal | Essuie-glace, notamment pour vehicule automobile |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3399419A (en) * | 1966-07-13 | 1968-09-03 | Ralph H. Wise | Windshield wiper |
US4007511A (en) * | 1975-04-07 | 1977-02-15 | Trico Products Corporation | Vehicle windshield wiper blade assemblies |
US4095308A (en) * | 1976-12-16 | 1978-06-20 | Tridon Limited | Low profile windshield wiper assembly |
-
2000
- 2000-05-25 DE DE10025722A patent/DE10025722A1/de not_active Withdrawn
-
2001
- 2001-03-22 WO PCT/DE2001/001117 patent/WO2001089894A1/de not_active Application Discontinuation
- 2001-03-22 JP JP2001586101A patent/JP2003534194A/ja active Pending
- 2001-03-22 US US10/049,713 patent/US6684449B2/en not_active Expired - Fee Related
- 2001-03-22 EP EP01923527A patent/EP1289808A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2888702A (en) * | 1955-07-22 | 1959-06-02 | Gen Motors Corp | Windshield wiper blade assembly |
FR2216152A1 (de) * | 1973-02-06 | 1974-08-30 | Trico Folberth Ltd | |
US4187576A (en) * | 1977-12-15 | 1980-02-12 | Trico Products Corporation | Wiper blade |
FR2437959A1 (fr) * | 1978-10-04 | 1980-04-30 | Sev Marchal | Essuie-glace, notamment pour vehicule automobile |
Also Published As
Publication number | Publication date |
---|---|
DE10025722A1 (de) | 2001-11-29 |
EP1289808A1 (de) | 2003-03-12 |
JP2003534194A (ja) | 2003-11-18 |
US6684449B2 (en) | 2004-02-03 |
US20020104183A1 (en) | 2002-08-08 |
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