WO1993011977A1 - Wischarm, insbesondere zur reinigung von scheiben von kraftfahrzeugen - Google Patents
Wischarm, insbesondere zur reinigung von scheiben von kraftfahrzeugen Download PDFInfo
- Publication number
- WO1993011977A1 WO1993011977A1 PCT/EP1992/002758 EP9202758W WO9311977A1 WO 1993011977 A1 WO1993011977 A1 WO 1993011977A1 EP 9202758 W EP9202758 W EP 9202758W WO 9311977 A1 WO9311977 A1 WO 9311977A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiper arm
- receptacle
- arm according
- fastening part
- section
- 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
- B60S1/34—Wiper arms; Mountings therefor
-
- 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
- B60S1/344—Flat-type 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
- B60S1/3425—Constructional aspects of the arm
- B60S1/3445—Joints between elements
- B60S1/345—Joints between elements the elements being a link piece and a mounting head
-
- 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
- Wiper arm in particular for cleaning windows of motor vehicles
- the invention is based on a wiper arm which is used in particular for cleaning windows of motor vehicles and which has a fastening part, preferably made entirely of sheet metal, which can be mounted in a rotationally fixed manner on a wiper shaft and has a receptacle for mounting a joint part.
- the wiper arms commonly used today on motor vehicles have as essential components a fastening part with which they sit on a wiper shaft in a rotationally fixed manner and which is made of zinc or aluminum as a die-cast part, a joint part punched out of a sheet metal and brought into a U-shape, a wiper rod , which is fixedly connected to the joint part and is articulated together with it on the fastening part and can be pivoted relative to the latter, and a contact pressure spring which is hooked into the fastening part on the one hand and on the joint part or on the wiper rod on the other hand known from EP 0301 131 AI
- a fastening part made of die-cast is an expensive part of the wiper arm simply from the manufacturing process and the material used, especially because in new motor vehicles the wiper shaft is increasingly in a slot between the windshield and d he body is arranged and therefore very long fasteners be used. Since the fastening parts are generally at least partially visible, high quality requirements are imposed on the surface, which are difficult to meet
- a wiper arm with such a fastening part is e.g. B. from DE 3428795 AI or DE 3926714 AI known.
- the fastening parts of these wiper arms have a back, which lies at least in sections in a plane perpendicular to the wiper shaft r and two side cheeks which are bent perpendicularly from the back and point to the pane to be cleaned or point away therefrom.
- Bores arranged coaxially to one another are provided in the two side cheeks and, possibly with the aid of a pressed-in bearing bush, receive a hinge pin for the pivotable mounting of the hinge part on the fastening part.
- the openings in the side panels must already be formed when the sheet is punched out. Only then is the sheet metal bent and pulled to the fastening part, so that an exact coaxial arrangement of the openings is not guaranteed.
- the known constructions also entail that a relatively large amount of material has to be used for a fastening part.
- the invention has for its object to develop a wiper arm with the features from the preamble of claim 1 so that the fastening part can be made of sheet metal with little material and little effort for the deformation inexpensively.
- a wiper arm with the features from the preamble of claim 1 in that the receptacle for mounting the joint part is formed by bending the sheet metal parallel to the axis of the receptacle.
- side cheeks of the fastening part are therefore no longer necessary in order to accommodate a bearing bush and a hinge pin for mounting the To create the joint part on the fastening part. This saves material.
- the problem of the coaxial arrangement of two openings spaced apart from one another is eliminated.
- a solution according to claim 3 appears particularly simple, according to which the sheet is rolled in the manner of a hinge band to form a receptacle.
- an embodiment according to claim 6 also appears to be advantageous, according to which the fastening part in the region of the receptacle has a plurality of sections lying one behind the other in the direction of the receptacle axis, of which at least one is bent in one direction and at least one is bent in the opposite direction.
- An embodiment appears to be particularly expedient in which there are at least three sections which are alternately bent in opposite directions and in which the two outermost sections are bent in the same direction. In this way, symmetrical support of a pressed-in bearing bush can be achieved.
- the fastening part has a particularly high stability in the area of the receptacle if sections of the sheet metal bent in opposite directions are connected to one another on both sides of the receptacle.
- a lateral offset of the axis of the receptacle to the plane of the sheet is obtained according to claim 10 in a simple manner in that a bent section of the fastening part serving to form the receptacle merges tangentially into a flat section of the fastening part. If the achievable direction of the offset does not coincide with the desired direction, it is possible to obtain the desired offset in accordance with claim 11 in that the fastening part in a section which is used to form the receptacle and which is bent in a specific direction in a section to bend it opposite bend passes.
- the sheet advantageously has a cutout, which, according to claim 12, is viewed from a hole for placement on the wiper shaft before being received in the sheet.
- the support point of the contact pressure spring is located in the opening in the region of the underside of the sheet metal facing the disc to be cleaned. A support on this edge is expediently achieved in that the sheet is inclined in the area of the opening to the pane to be cleaned.
- the height of the sheet is used to a large extent to maintain a large distance between the axis of the receptacle and the line of action of the spring. Conversely, this means that the wiper arm can be built very flat in the area of the joint between the fastening part and the joint part.
- Wiper arms for motor vehicles usually have a stop in the area of the receptacle. the articulated, so that the fastening part and the articulated part before mounting the wiper arm on the motor vehicle from the contact pressure springs only up to a very obtuse angle with respect to one another can be kinked.
- a stop is also formed in a wiper arm according to the invention.
- the stop is cut out in a simple manner from a section of the sheet metal of the fastening part bent to form the receptacle.
- the stop can be formed by a straight, extended end of a section of the sheet metal of the fastening part bent to form the receptacle.
- FIG. 1 shows a wiper arm fastened on a wiper shaft according to a first embodiment, in which the receptacle is formed by sections of the fastening part bent in opposite directions,
- FIG. 2 shows a plan view of the bare fastening part according to FIG. 1,
- FIG. 3 shows a slightly modified version of the fastening part according to FIGS. 1 and 2 with a different design of the stop for the joint part
- FIG. 4 shows in longitudinal section an embodiment of a fastening part in which the receptacle is formed by rolling the sheet metal in the manner of a hinge band
- FIG. 5 shows a top view of the fastening part according to FIG. 4
- FIG. 6 shows a further embodiment of a fastening part, in which the receptacle is formed by rolling the sheet metal in the manner of a hinge plate,
- FIG. 7 shows an embodiment of a fastening part in which, to form the receptacle, differently bent sections of the sheet metal are connected to one another on both sides of the receptacle,
- FIG. 8 shows a top view of the fastening part according to FIG. 7,
- FIG. 10 shows an enlarged illustration of the detail X from FIG. 9.
- the essential components of a wiper arm are a fastening part 10 with which the wiper arm is fastened on a wiper shaft 11 in a rotationally fixed manner, a U-shaped joint part 12 which is formed from a sheet metal and which is pivotably articulated on the fastening part via a bolt 13 Wiper rod 14, which is bent at the free end to a hook 15 and is firmly connected at the other end by crimping to the joint part 12, and a coil spring 16, which is hooked onto the fastening part 10 and the wiper rod 14 and which is essentially inside the joint part 12 runs.
- the fastening part 10 is formed by a sheet metal of elongated shape which extends from the wiper shaft 11 in the longitudinal direction of the entire wiper arm.
- the fastening part At its end remote from the wiper shaft 11, the fastening part has a receptacle 20 into which a bearing bush 21 is pressed, which axially projects beyond the sheet metal of the fastening part, so that the side cheeks 17 of the joint part 12 can rest against it.
- the fastening part 10 Seen from the articulated part 1 12 behind the receptacle 20, the fastening part 10 consists of non-profiled, solid material such as steel or aluminum.
- a conical and knurled section 22 of the wiper shaft 11 To put on a conical and knurled section 22 of the wiper shaft 11 has the Fastening part a conical bore 23 which is pre-punched when punching the sheet metal blank for the fastening part and then lowered.
- an opening 24 is punched out of the sheet metal forming the fastening part, into which the coil spring 16 is suspended via a bracket 25.
- the fastening part 10 has three sections 30, 31 and 32 lying one behind the other in the direction of the axis of the receptacle 20.
- the two outer sections 30 and 32 are bent upward parallel to the axis of the receptacle 20 from the plane of the sheet metal, and merge tangentially into the flat section 33 of the sheet metal.
- the middle section 31 is bent around the receptacle 20 opposite to the two sections 30 and 32, whereby it merges into the flat section 33 of the fastening part 10 in a bend opposite to its bend. Overall, this results in an offset of the axis of the receptacle 20 from the plane of the section 33.
- the free ends of the sections 30 and 32 on the one hand and the section 31 on the other hand do not overlap, as can clearly be seen in FIG. 1, but are at a short distance from one another . However, this does not impair the secure fixing of the bearing bush 21.
- a stop 35 is cut out of the middle section 31, which extends tangentially to the receptacle 20 or to the section 31 and which rises above this section.
- the joint part can rest against it with its back 36, so that the stop 35 limits the buckling of the wiper arm due to the force of the helical spring 16.
- the embodiment according to FIG. 3 is similar to that from FIGS. 1 and 2 in that the receptacle 20 is again formed by sections 30, 31 and 32 which are bent in accordance with the corresponding sections of the embodiment according to FIGS. 1 and 2. The only difference is with regard to the stop 35 for the joint part 12.
- the sections 30 and 32 are longer than in the embodiment according to FIGS. 1 and 2 and stand with a straight end perpendicular to the plane of section 33 upward away from the pane 26 to be cleaned. Each upstanding end represents a stop 35 for the joint part 12. Both stops 35 act in parallel.
- section 40 is similar to section 31 of the embodiments according to FIGS. 1 and 3 in a bend opposite to its bend into the flat section 33.
- a stop 35 is cut out of section 40, which points tangentially from section 40 and slopes slightly downwards. Like the stop 35 in the embodiment according to FIGS. 1 and 2, the stop 35 according to FIGS. 4 and 5 is also connected to this in the region of the highest point of the section 40.
- section 40 is rolled in the opposite direction to that according to FIGS. 4 and 5.
- the free end of section 40 is thus located on the upper side 42 of sheet metal section 33 opposite disk 26.
- Section 40 merges tangentially into flat section 33, the offset of the axis of receptacle 20 from Plane of section 33 is obtained by the rolling direction of section 40.
- a stop 35 for the hinge part 12 is again cut out of the section 40, but is now similar to the stops 35 of the embodiment according to FIG. 3 tangentially starting from the section 40 vertically upwards. Connected to section 40, stop 35 is approximately at the level of the axis of receptacle 20.
- the stop 35 is connected to the free end of the section 40, so that at least before the sheet metal rolls its free end in the same direction as the free end of a section 40 shows.
- the stop 35 would then stand up similarly to the embodiment according to FIG. 6, in the embodiment according to FIG. 6, however, would protrude more in the longitudinal direction of the wiper arm, similar to the embodiment according to FIGS.
- the fastening part 10 according to FIGS. 7 and 8 in turn has a flat section 33 with a conical bore 23 and an opening 24.
- the receptacle 20 is formed by three sections 30, 31 and 32 similarly to the embodiments according to FIGS. 1 to 3, which lie one behind the other in the axial direction of the receptacle 20.
- the central section 31 is bent opposite to the two outer sections 30 and 32 and leads around the receptacle 20 at the top, while the sections 30 and 32 below around the receptacle 26 close to the disk 26 lead around.
- the sections 30, 31 and 32 are now connected to one another on both sides of the receptacle 20, that is to say they have no free end. Only in the area of the receptacle 20 are they separated from one another by longitudinal cuts, so that they can be bent in opposite directions.
- a stop for the joint part can also be cut out from the central section 31 in the embodiment according to FIGS. 7 and 8.
- FIG. 9 again shows a fastening part 10 made of sheet metal with a conical bore 23 and with an opening 24 for hanging in a bracket 25, on which in turn a helical spring 16 is suspended.
- the receptacle 20 is formed by rolling a sheet metal section 40 similarly to the embodiment according to FIGS. 4 and 5.
- the fastening part is in the area of the opening 24 downwards, i. H. inclined to the disk 26 to be cleaned, so that the bracket 25 rests against the edge of the opening 24, which this has with the underside 41 of the sheet.
- this overall height is still determined by the outer diameter of the bent section 40, since the maximum distance of the sheet from the flat section 33 in the area of the downward inclination is not greater than in the area of the section 40.
- the edge 43, on which the bracket 25 rests, is rounded off, as can be seen in FIG. 10, by an additional embossing.
- the fastening part 10 can be covered with a plastic cap which is snapped onto the projecting portions of the bearing bush 21 in a conventional manner.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Clamps And Clips (AREA)
- Body Structure For Vehicles (AREA)
- Cleaning In General (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9205618A BR9205618A (pt) | 1991-12-12 | 1992-11-28 | Braço de limpador, especialmente para limpeza de pára-brisas de veiculos motorizados |
JP5510552A JPH06505459A (ja) | 1991-12-12 | 1992-11-28 | 特に自動車のウインドシールドを拭取るためのワイパアーム |
CS931638A CZ282698B6 (cs) | 1991-12-12 | 1992-11-28 | Raménko stírače, zejména pro čištění čelních skel motorových vozidel |
SK863-93A SK86393A3 (en) | 1991-12-12 | 1992-11-28 | Wiper arm, especially for cleaning motor vehicle window panels |
KR1019930702317A KR930703169A (ko) | 1991-12-12 | 1992-11-28 | 자동차의 바람막이 유리 세척용 와이퍼 아암 |
US08/104,096 US5502867A (en) | 1991-12-12 | 1992-11-28 | Wiper arm assembly including a single piece fixing part |
EP92924620A EP0580822B1 (de) | 1991-12-12 | 1992-11-28 | Wischarm, insbesondere zur reinigung von scheiben von kraftfahrzeugen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4140960.4 | 1991-12-12 | ||
DE4140960A DE4140960A1 (de) | 1991-12-12 | 1991-12-12 | Wischarm, insbesondere zur reinigung von scheiben an kraftfahrzeugen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993011977A1 true WO1993011977A1 (de) | 1993-06-24 |
Family
ID=6446866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1992/002758 WO1993011977A1 (de) | 1991-12-12 | 1992-11-28 | Wischarm, insbesondere zur reinigung von scheiben von kraftfahrzeugen |
Country Status (11)
Country | Link |
---|---|
US (2) | US5502867A (de) |
EP (1) | EP0580822B1 (de) |
JP (1) | JPH06505459A (de) |
KR (1) | KR930703169A (de) |
BR (1) | BR9205618A (de) |
CZ (1) | CZ282698B6 (de) |
DE (1) | DE4140960A1 (de) |
ES (1) | ES2077444T3 (de) |
HU (1) | HU213484B (de) |
SK (1) | SK86393A3 (de) |
WO (1) | WO1993011977A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0670252A1 (de) * | 1994-03-03 | 1995-09-06 | Valeo Systemes D'essuyage | Befestigungsteil für einen Scheibenwischer eines Kraftfahrzeuges |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10106235A1 (de) * | 2001-02-10 | 2002-08-22 | Bosch Gmbh Robert | Wischarm |
DE10126258A1 (de) * | 2001-05-29 | 2002-12-05 | Bosch Gmbh Robert | Wischerarm, insbesondere für eine Scheibenwischvorrichtung eines Kraftfahrzeugs |
DE10228349A1 (de) * | 2002-06-25 | 2004-01-15 | Robert Bosch Gmbh | Scheibenwischer für Fahrzeugscheiben |
JP4091493B2 (ja) * | 2003-07-08 | 2008-05-28 | アスモ株式会社 | 連結装置、及びワイパブレード |
DE102006004110A1 (de) * | 2006-01-28 | 2007-08-16 | Valeo Systèmes d`Essuyage | Wischarm |
EP3284642A4 (de) * | 2015-04-17 | 2019-05-08 | Mitsuba Corporation | Wischervorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1011618A (fr) * | 1950-02-08 | 1952-06-25 | Montage des balais d'essuie-glaces | |
US4932097A (en) * | 1987-06-16 | 1990-06-12 | Jidosha Denki Kogyo Kabushiki Kaisha | Wiper 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 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1626629A (en) * | 1925-11-09 | 1927-05-03 | Owen Dyneto Corp | Windshield wiper |
US2353208A (en) * | 1942-07-04 | 1944-07-11 | Stewart Warner Corp | Windshield wiper |
US2847695A (en) * | 1954-07-16 | 1958-08-19 | Gen Motors Corp | Windshield wiper arm |
US3061866A (en) * | 1960-04-01 | 1962-11-06 | Auderson Company | Windshield wiper arm structure |
US3216053A (en) * | 1963-01-14 | 1965-11-09 | Lake Park Tool And Die Inc | Hinge |
US3950818A (en) * | 1974-12-06 | 1976-04-20 | Jaybee Manufacturing Corporation | Self latching cabinet hinge having a resilient tension strap |
JPS60104438A (ja) * | 1983-08-04 | 1985-06-08 | エキプマン、オ−トモビル、マルシヤル | ワイパ部片の組立てヘツド |
US4873744A (en) * | 1988-03-14 | 1989-10-17 | L. E. Johnson Products, Inc. | Door hinge |
-
1991
- 1991-12-12 DE DE4140960A patent/DE4140960A1/de not_active Ceased
-
1992
- 1992-11-28 KR KR1019930702317A patent/KR930703169A/ko not_active Application Discontinuation
- 1992-11-28 CZ CS931638A patent/CZ282698B6/cs not_active IP Right Cessation
- 1992-11-28 WO PCT/EP1992/002758 patent/WO1993011977A1/de active IP Right Grant
- 1992-11-28 JP JP5510552A patent/JPH06505459A/ja active Pending
- 1992-11-28 SK SK863-93A patent/SK86393A3/sk unknown
- 1992-11-28 ES ES92924620T patent/ES2077444T3/es not_active Expired - Lifetime
- 1992-11-28 EP EP92924620A patent/EP0580822B1/de not_active Expired - Lifetime
- 1992-11-28 BR BR9205618A patent/BR9205618A/pt not_active IP Right Cessation
- 1992-11-28 US US08/104,096 patent/US5502867A/en not_active Expired - Fee Related
- 1992-11-28 HU HU9302307A patent/HU213484B/hu not_active IP Right Cessation
-
1996
- 1996-02-28 US US08/608,425 patent/US5680669A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1011618A (fr) * | 1950-02-08 | 1952-06-25 | Montage des balais d'essuie-glaces | |
US4932097A (en) * | 1987-06-16 | 1990-06-12 | Jidosha Denki Kogyo Kabushiki Kaisha | Wiper 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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0670252A1 (de) * | 1994-03-03 | 1995-09-06 | Valeo Systemes D'essuyage | Befestigungsteil für einen Scheibenwischer eines Kraftfahrzeuges |
FR2716852A1 (fr) * | 1994-03-03 | 1995-09-08 | Valeo Systemes Dessuyage | Essuie-glace de véhicule automobile comportant une tête d'entraînement perfectionnée. |
Also Published As
Publication number | Publication date |
---|---|
HUT68343A (en) | 1995-06-28 |
HU213484B (en) | 1997-07-28 |
EP0580822B1 (de) | 1995-09-13 |
CZ282698B6 (cs) | 1997-09-17 |
DE4140960A1 (de) | 1993-06-17 |
SK86393A3 (en) | 1994-05-11 |
US5502867A (en) | 1996-04-02 |
KR930703169A (ko) | 1993-11-29 |
HU9302307D0 (en) | 1994-01-28 |
EP0580822A1 (de) | 1994-02-02 |
BR9205618A (pt) | 1994-05-03 |
CZ163893A3 (en) | 1994-02-16 |
JPH06505459A (ja) | 1994-06-23 |
ES2077444T3 (es) | 1995-11-16 |
US5680669A (en) | 1997-10-28 |
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