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
  • B60S1/38—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
  • B60S1/3801—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
  • B60S1/38—Wiper blades
  • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
  • B60S2001/3813—Means of supporting or holding the squeegee or blade rubber chacterised by a support harness consisting of several articulated elements

Definitions

• the invention is based on a wiper blade according to the preamble of claim 1.
• a fastening part is generally attached to a drive shaft, to which a joint part is connected via a joint pin.
• a wiper rod adjoins the joint part and a wiper blade is hooked into the hook-shaped end.
• the wiper blade generally has an integral support bracket system with intermediate brackets articulated on a central bracket, the ends of which are connected to the claw brackets in an articulated manner.
• the claw brackets hold a wiper strip on their ends with their claws.
• the multi-section support bracket system and a spring rail inserted in the head strip of the wiper strip enable the wiper strip to adapt to a curved windshield when wiping with a uniform contact pressure.
• a wiper blade with a multi-member support bracket system is known from DE ü 74 07 325.
• the parent bracket and the claw brackets are provided between several articulation points. By shifting the normally central articulation point towards one end, different leg lengths result, which also allows the pressure distribution to be adapted.
• the claw brackets can also be straight or curved and made of an elastic material.
• the wiper blades Since the windshields of different vehicle types differ in the curvature of the windshield, the wiper blades must be adapted accordingly so that on the one hand the wiper blade is as aerodynamic as possible and, on the other hand, an optimal contact force for the respective vehicle type is obtained. A large number of different bracket shapes are therefore required. This does not make sense for logistical reasons and for cost reasons.
• the wiper blade with a multi-member mounting bracket system has at least one bracket which has at least one area between its ends, which area is defined in a longitudinal center plane of the mounting bracket system and is plastically deformable.
• a universal bracket system can be created, which is matched to the respective vehicle window by changing the height of the bracket through a targeted deformation.
• the individual variant is optimized for the respective vehicle with regard to the distribution of the contact pressure of the wiper strip and the height of the wiper blade, with a flat wiper blade less obstructing the driver's view at the same time.
• the flat design also gives advantages in terms of electrical engineering, i.e. The wind blows around the wiper blade more favorably and it offers it less attack surface, which reduces the buoyancy forces. At the same time, the noise from the forest is significantly reduced.
• One or more deformable areas can be provided.
• claw balls they are preferably close to the claws or near the joint. Both variants are based on a universal claw ball IUS, which is deformed after an amount previously determined in an additional operation before the wiper strip is installed, so that the wiper blade lies optimally on the vehicle window and has the smallest possible height. This not only takes into account the tolerances of the individual components, but also assembly tolerances can be compensated for. Since the total height of the wiper blade results from the sum of the heights of the components used, such as the middle bow, intermediate bow and claw bow, and the manufacturing tolerances, precise coordination is only possible when assembled. The measured values determined during assembly are therefore used for completion.
• the process for plastically deforming the support bracket system is expediently designed so that it can be used before, during or after assembly. Such a process therefore offers not only the advantage of versatile use during production, but also that of control and post-processing.
• the stirrups may only be deformed to such an extent that there is still sufficient freedom of movement to a subordinate stirrup or the wiper strip.
• the defined deformable area is formed by making its cross section of the bow weaker than neighboring areas in the direction of deformation. This can e.g. can be achieved through a lower material thickness. A simple possibility is also that the section modulus is reduced by beads or openings in the rare walls of the bracket. Lower component shapes adapted to the local load mean less material and less weight at the same time.
• the invention reduces the complexity of the individual parts of the support bracket system. Iron parts are manufactured more cost-effectively due to the large number of pieces. At the same time, the manufacture of the wiper blade is generally more cost-effective, since it is possible to work with larger production batches, which means that frequent changeovers are not necessary. Since series components are largely used in this process, the meet specific requirements after a defined change, you can also react quickly and cost-effectively to new vehicle types.
• Fig. 6 is a view of the claw bow in the direction of arrow VI in Fig. 3, and
• Fig. 7-9 partial view of a claw bow with openings in the side walls and Fig. 10 shows a cross section along the line X-X in Fig. 7th
• E n wiper blade 10 has a support bracket system 12, which essentially consists of a central bracket 14, intermediate brackets 16 and the claw brackets 46, 48, which are connected to one another via joints 32 and 34.
• the claw ball 46, 48, the m generally m the same bracket system 12 have the same shape, m special cases but also have different shapes adapted to the requirements, hold with their claws 20 a wiper strip 22 on their head strip 24, m which has a spring rail 18 inserted (FIG. 1).
• a wiper arm presses the multi-membered bracket system 12 with the wiper strip 22 against a vehicle window 28, 30 with a force 26 and, due to its construction, generates a uniform contact pressure.
• 1 and 2 show vehicle windows 28 and 30 with different window curvatures as dash-dotted lines, to which the wiper strip 22 adapts optimally.
• the limits of the adaptation m with respect to the curvature of the vehicle window 28, 30 and the overall height of the wiper blade 10 lie in the shape of the brackets 14, 16, 46, 48, since in each case there must be sufficient freedom of movement of the support bracket system 12.
• the bracket to be deformed is a claw bracket 46, 48, which has a U-shaped profile that is open toward the vehicle window 28, 30 (FIG. 10) and is stretched or compressed or bent accordingly, starting from a basic shape.
• the claw ball 46 has a bead 36 near the claws 20 (Fig. 3, Fig. 6).
• the Claw ball 46 is more easily deformable than the adjacent areas, so that when a force 56, 66 acts against the supporting forces 54, 58, especially area 50 is deliberately plastically deformed.
• the claw ball 48 can have a different shape (FIGS. 7 to 10), in particular it can have openings 38 and 40 in its side walls 44, so that when a force 56, 66 acts on these areas 52, which also in FIG close to the joint 34 can be deliberately plastically deformed (Fig. 7).
• brackets 14, 16, 46, 48 of the carrying bracket system 12 is such that they can be used universally, and the wiper blade 10 is manufactured conventionally on existing mounting devices until the wiper strip 22 is threaded in.
• An amount previously determined by measurement provides information about the direction and the amount by which the bracket 14, 16, 46, 48 must be deformed.
• the corresponding bracket 14, 16, 46, 48 in the exemplary embodiment the claw bracket 46, 48 of the supporting bracket system 12 is plastically deformed.
• the claw balls 46_, 48 are generally supported in the area of their claws 20, while the forces 56, 66 for deformation are applied in the area of the joint 34.
• a reverse arrangement is also possible. If necessary, the claw brackets 46, 48 are additionally guided over their claws 20 in a rail 60.
• FIG. 4 shows a claw ball 46, on the claws of which 20 support forces 54 act. If necessary, the claw ball 46 can be supported on the claws 20 in the longitudinal direction during the deformation.
• the arrow 62 describes the movement of the legs 42 of the claw bracket 46. After the deformation, the claw bracket 46 has a lower overall height 70.
• FIG. 5 shows a deformation in the opposite direction, 20 claw forces 58 against a force 66 on the claw bracket 46 on its claws act in the area of the joint 34. The position of the legs 42 changes in the direction of the arrow 64.
• the claw ball 46 After this deformation, the claw ball 46 has a larger overall height 72.
• the structural height 68 of the undeformed claw ball 46 is individually changed in this method according to dimensional specifications, as a result of which the wiper strip 22 is optimally adapted to the existing curvature of the window.
• the claw ball 48 is deformed in the same way as the claw ball 46, a plurality of deformation areas 52 being provided. The areas in between are practically not changed by the deformation. This results in an embodiment according to FIG. 8 with a small overall height . 70 and an embodiment according to FIG. 9 with a larger overall height 72. The lowest possible overall height is sought for reasons of electrical engineering. However, the claw ball 46, 48 may only be deformed to such an extent that the joint 34 still has sufficient freedom of movement to the wiper strip 22 which is retracted later. If the wiper strip 22 strikes the vehicle window 28, 30 during assembly or maintenance, the joint 34 can be supported on the wiper strip 22. This will make the claw ball
• the claw brackets 46, 48 relieved of excessive impact forces and can be dimensioned more easily. When deformed, the claw brackets 46, 48 can bulge laterally. Therefore, the claw brackets 46, 48 are optionally calibrated laterally after the deformation in order to reverse changes in the bracket width.
• the forces required for calibration are denoted by 74 in FIG. 10.

Landscapes

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

Applications Claiming Priority (3)

Publications (1)

Family

ID=7910028

Family Applications (1)

Country Status (8)

Family Cites Families (6)

• 1999
  • 1999-06-02 DE DE19925293A patent/DE19925293A1/de not_active Withdrawn
• 2000
  • 2000-05-25 CN CN00801026A patent/CN1310678A/zh active Pending
  • 2000-05-25 JP JP2000621201A patent/JP2003500289A/ja active Pending
  • 2000-05-25 WO PCT/DE2000/001698 patent/WO2000073112A1/de not_active Application Discontinuation
  • 2000-05-25 PL PL00345613A patent/PL345613A1/xx unknown
  • 2000-05-25 BR BR0006180-8A patent/BR0006180A/pt not_active Application Discontinuation
  • 2000-05-25 KR KR1020017001252A patent/KR20010072104A/ko not_active Application Discontinuation
  • 2000-05-25 EP EP00943645A patent/EP1098794A1/de not_active Withdrawn

Non-Patent Citations (1)

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