WO2010145864A1 - Befestigungselement zur aufnahme eines wischerarmes - Google Patents
Befestigungselement zur aufnahme eines wischerarmes Download PDFInfo
- Publication number
- WO2010145864A1 WO2010145864A1 PCT/EP2010/055160 EP2010055160W WO2010145864A1 WO 2010145864 A1 WO2010145864 A1 WO 2010145864A1 EP 2010055160 W EP2010055160 W EP 2010055160W WO 2010145864 A1 WO2010145864 A1 WO 2010145864A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- metal layer
- fastening element
- receiving
- region
- 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.)
- Ceased
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
- B60S1/3425—Constructional aspects of the arm
- B60S1/3436—Mounting heads
- B60S1/3438—Manufacturing details thereof
-
- 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
- B60S1/3425—Constructional aspects of the arm
- B60S1/3436—Mounting heads
-
- 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
- B60S1/3463—Means to press blade onto screen
- B60S1/3465—Means to press blade onto screen with coil springs
- B60S1/3468—Mountings therefor
Definitions
- the present invention relates to a fastening element for receiving a wiper arm, in particular for a windshield wiper device of a motor vehicle.
- windscreen wiper devices for motor vehicles are known, for example from DE 101 26 258 A1. These windscreen wiper devices have a fastening element, which is connected at one end to a hinge part of a wiper arm tiltably. On the wiper arm, a wiper blade is attached. The other end of the fastener is connected to a wiper shaft conically configured at one end and thus enables the transmission of a pendulum movement of the shaft to the wiper blade.
- the fastening part is designed as a deep-drawn sheet metal part.
- a disadvantage of such an embodiment of the fastener as a deep-drawn sheet metal part are the high costs due to the complex manufacturing process.
- the fastening element according to the invention for receiving a wiper arm in particular for a windshield wiper device of a motor vehicle, comprises a receiving region for receiving the wiper arm, and a connecting region for connecting the fastening element to a shaft, wherein the connecting region has a conically shaped opening for receiving a conically shaped shaft end.
- the opening is formed within a region formed from at least one first sheet metal layer and at least one second sheet metal layer.
- the fastening element according to the invention can be produced from a sheet metal strip, or be cut out of a metal sheet, and then brought into the desired shape by forming, for example by bending.
- a second layer of sheet metal in the connection region By using, for example, a second layer of sheet metal in the connection region, the thickness of the fastening element in the region can be increased.
- the opening may be configured conical in order to accommodate the conical end of a shaft, such as the shaft of a windshield wiper drive, within the opening can.
- the opening can be introduced, for example, prior to assembly in the respective sheet metal layer, or be formed at the same time in both sheet metal layers after mounting the sheet metal layers.
- the puncturing can be done for example by means of lasers or punching.
- the opening can be calibrated to increase tolerance accuracy. Increasing the thickness of the fastener in the connection area increases the internal area of the opening, thereby increasing the contact area that contacts the conical end of the shaft. Thereby, the transmission of a larger force from the shaft to the fastening part and thus to the wiper arm is possible.
- the thickness of the fastening part required for force transmission and secure fastening of the wiper arm can also be achieved, for example, by three or more sheet metal layers. Due to the inventive design of the fastener, the shape of the fastener is simplified.
- the manufacturing process of the fastener can be simplified, whereby, for example, the Tool costs can be reduced. This allows a simplified manufacturing and reduces the cost of manufacturing the fastener.
- the first sheet-metal layer and the second sheet-metal layer are formed by a bent by at least 180 degrees sheet metal, wherein the sheet is bent within the connection region.
- the second sheet metal layer can lie in the same plane of the sheet when cutting the opening as the first layer. After cutting, the second sheet metal layer, for example in the form of a sheet metal strip, which is connected to the first sheet metal strip, be formed.
- An advantage of this embodiment is that the sheet metal strip, for example, can be bent once by 180 degrees to form the second sheet metal layer, and is thus arranged substantially parallel to the first sheet metal layer.
- the second sheet-metal layer can be bent downwards, to the underside of the fastening element, in the direction of the shaft, as well as up, to the top of the fastener, away from the shaft.
- the metal strip can be bent several times, for example twice or three times by 180 degrees.
- the first sheet-metal layer is provided on an upper side of the fastening element and the second sheet-metal layer is provided on an underside of the fastening element, wherein the opening in the region of the first sheet-metal layer has a smaller diameter than in the region of the second sheet-metal layer.
- the top is the side of the fastener that faces the nut.
- the underside is the side facing away from the nut in the mounted state of the shaft on the fastener.
- the first sheet-metal layer which is arranged at the top, has a smaller diameter than the second sheet-metal layer at the bottom, the conical end of the shaft can be received in the opening such that a tight fit is ensured.
- the conical end of the shaft can have a thread extension which projects beyond the surface in the axial direction of the shaft through the opening of the fastening element.
- a nut can be attached on this thread extension of the shaft.
- the nut When assembled, the nut is located on the surface of the fastener.
- transmission element and can apply a tensile force on the shaft, which presses the shaft into the conical opening and locks the shaft.
- the first sheet-metal layer is formed in the region of the opening such that the sheet-metal layer has an offset.
- the offset may be formed, for example, as an annular step around the opening.
- the offset can be designed as a recess in the first sheet metal layer, towards the bottom.
- the recess can be formed by reducing the thickness of the first sheet metal layer, or by forming the first sheet metal layer at substantially constant sheet thickness of the sheet metal layer. It is advantageous that remains a distance between the bottom of the nut and the beginning of the conical shaft end. Due to the manufacturing tolerance tolerances at the conical opening and at the conical shaft end, the relative position between the conical shaft end and the opening can vary. The distance has the advantage that the nut can not hit against the conical surface of the shaft. As a result, a sufficiently large pressure between the fastener and shaft is guaranteed even with an unfavorable tolerance pairing.
- the second sheet metal layer extends into the receiving area. This has the advantage that the second sheet metal layer can reinforce the receiving area, for example against forces that compress the receiving area.
- the receiving area has at least two bevelled side surfaces, wherein the second sheet metal layer is connected to the side surfaces.
- the fastening element may have two side surfaces, which are formed substantially perpendicular to the surface of the fastening element and extend along the connecting region and the receiving region.
- the side surfaces can be produced for example by bending the sheet.
- the side surfaces in the receiving area may be formed higher than in the connecting area and have recesses for tiltably receiving the wiper arm.
- the second sheet metal layer may be connected to the side surfaces both in the receiving area and in the connection area. This will increase the range of Ches achieved that can transmit tensile and compressive forces.
- the second sheet metal layer is positively connected to the side surfaces.
- the second sheet-metal layer may have a laterally formed extension in the receiving region on each side, which extension can be received in an adapted recess in the respective side surface.
- the lateral extension can also be connected by a press fit with the side surface. This allows a cost-effective, easy to manufacture connection between the second sheet-metal layer and the side surface, which increases the stability of the fastening element.
- the second sheet-metal layer has a recess for fastening a tensioning element.
- the recess may be configured in the form of an opening extending through the second sheet metal layer.
- the integration of the recess in the second sheet metal layer allows a cost-effective attachment of the clamping element to the fastener.
- the tensioning element may for example be designed in the form of a spring, which is connected to the fastening element and the wiper arm.
- the invention further relates to a vehicle with a fastening element for a windshield wiper device designed and developed as described above.
- FIG. 1 shows a schematic perspective top view of a fastening element according to the invention
- FIG. 2 shows a schematic perspective bottom view of the fastening element according to the invention shown in FIG. 1;
- FIG. 3 shows a schematic representation of a side view of the fastening element shown in FIG. 1 with a shaft arranged on the fastening element.
- the fastening element 10 shown in FIG. 1 has a receiving region 12 and a connecting region 14.
- the connecting region 14 is formed by a first sheet-metal layer 16 and a second sheet-metal layer 18 which is bent downward by 180 degrees.
- a conically shaped opening 20 Through the first sheet-metal layer 16 and the second sheet-metal layer 18 through a conically shaped opening 20 is formed, which has an annular offset 22.
- the surface of the offset 22 is arranged deeper than the surface 24 of the fastener 10.
- Along the receiving area 12 and the connecting portion 14 extend on each side each have a side surface 28 which are arranged substantially perpendicular to the top 24.
- the side surfaces 28 each have a bearing 30 for receiving a wiper arm.
- the second sheet-metal layer 18 is positively connected to both side surfaces 28, for which purpose a recess 46 can be provided on the side surfaces 28 in each case, into which the second sheet-metal layer 18 can engage.
- FIG. 2 shows the second sheet-metal layer 18, bent over 180 degrees down to the underside 26, which is arranged substantially parallel to the first sheet-metal layer 16 in the region of the conically shaped opening 20.
- the second sheet-metal layer 18 extends into the receiving region 12 and is connected on both sides positively to the side surfaces 28.
- a recess 32 for receiving a clamping element 44 is configured in the second sheet-metal layer 18.
- the conically shaped opening 20 has on its inner side a contact surface 34 for contacting a conical shaft end 36.
- the conically shaped opening 20 in the first sheet-metal layer 16 and the second sheet-metal layer 18 serves to receive a conical shaft end 36 of a windscreen wiper shaft 38.
- the conical shaft end 36 bears against the contact surface 34 of the opening 20.
- a threaded extension 40 of the shaft 38 protrudes through the opening 20.
- a nut 42 is connected, which touches the upper side 24 of the fastening element 10 with its underside.
- the offset 22 and the conical shaft end 36 are spaced from each other.
- the offset is in this case designed such that the first sheet metal ge 16 at substantially constant sheet thickness was unshaped.
- a clamping element 44 is hooked in the form of a spring.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201080026963.9A CN102803029B (zh) | 2009-06-17 | 2010-04-20 | 用于容纳刮水臂的固定部件 |
| EP10714284.6A EP2443008B1 (de) | 2009-06-17 | 2010-04-20 | Befestigungselement zur aufnahme eines wischerarmes |
| BRPI1010742A BRPI1010742A2 (pt) | 2009-06-17 | 2010-04-20 | elemento de fixação para alojar um braço de limpador. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009027005.1 | 2009-06-17 | ||
| DE200910027005 DE102009027005A1 (de) | 2009-06-17 | 2009-06-17 | Befestigungselement zur Aufnahme eines Wischerarmes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010145864A1 true WO2010145864A1 (de) | 2010-12-23 |
Family
ID=42341663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/055160 Ceased WO2010145864A1 (de) | 2009-06-17 | 2010-04-20 | Befestigungselement zur aufnahme eines wischerarmes |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2443008B1 (de) |
| CN (1) | CN102803029B (de) |
| BR (1) | BRPI1010742A2 (de) |
| DE (1) | DE102009027005A1 (de) |
| WO (1) | WO2010145864A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993011978A1 (de) * | 1991-12-12 | 1993-06-24 | Itt Automotive Europe Gmbh | Wischarm, insbesondere zur reinigung von scheiben an kraftfahrzeugen |
| GB2311209A (en) * | 1996-03-23 | 1997-09-24 | Trico Products Corp | Windscreen wiper heads |
| DE10126258A1 (de) | 2001-05-29 | 2002-12-05 | Bosch Gmbh Robert | Wischerarm, insbesondere für eine Scheibenwischvorrichtung eines Kraftfahrzeugs |
| EP1486389A2 (de) * | 2003-06-11 | 2004-12-15 | Robert Bosch Gmbh | Vorrichtung mit einem Befestigungsteil eines Wischarms |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2493527A (en) * | 1946-05-23 | 1950-01-03 | Marquette Metal Products Co | Wiper drive arm |
| DE3926714A1 (de) * | 1989-08-12 | 1991-02-14 | Swf Auto Electric Gmbh | Verfahren zur herstellung von insbesondere lackierten metallteilen fuer scheibenwischer und wischarm mit einem insbesondere nach einem solchen verfahren hergestellten metallteil |
| US5652994A (en) * | 1993-08-11 | 1997-08-05 | Swf Auto-Electric Gmbh | Wiper arm especially for cleaning windshields of motor vehicles |
| NL1004634C2 (nl) * | 1996-11-28 | 1998-05-29 | Champion Spark Plug Sa | Ruitenwisserarm. |
| DE19929914B4 (de) * | 1999-06-29 | 2010-09-30 | Robert Bosch Gmbh | Wischarm |
| DE10228349A1 (de) * | 2002-06-25 | 2004-01-15 | Robert Bosch Gmbh | Scheibenwischer für Fahrzeugscheiben |
-
2009
- 2009-06-17 DE DE200910027005 patent/DE102009027005A1/de not_active Withdrawn
-
2010
- 2010-04-20 WO PCT/EP2010/055160 patent/WO2010145864A1/de not_active Ceased
- 2010-04-20 CN CN201080026963.9A patent/CN102803029B/zh not_active Expired - Fee Related
- 2010-04-20 EP EP10714284.6A patent/EP2443008B1/de not_active Not-in-force
- 2010-04-20 BR BRPI1010742A patent/BRPI1010742A2/pt not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993011978A1 (de) * | 1991-12-12 | 1993-06-24 | Itt Automotive Europe Gmbh | Wischarm, insbesondere zur reinigung von scheiben an kraftfahrzeugen |
| GB2311209A (en) * | 1996-03-23 | 1997-09-24 | Trico Products Corp | Windscreen wiper heads |
| DE10126258A1 (de) | 2001-05-29 | 2002-12-05 | Bosch Gmbh Robert | Wischerarm, insbesondere für eine Scheibenwischvorrichtung eines Kraftfahrzeugs |
| EP1486389A2 (de) * | 2003-06-11 | 2004-12-15 | Robert Bosch Gmbh | Vorrichtung mit einem Befestigungsteil eines Wischarms |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102803029A (zh) | 2012-11-28 |
| CN102803029B (zh) | 2015-05-20 |
| EP2443008A1 (de) | 2012-04-25 |
| BRPI1010742A2 (pt) | 2016-03-15 |
| DE102009027005A1 (de) | 2010-12-23 |
| EP2443008B1 (de) | 2018-06-13 |
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