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
  • B60S1/3848—Flat-type wiper blade, i.e. without harness
  • B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
  • B60S1/386—Connectors therefor; Connection to wiper arm; Attached to blade made in two halves
• • 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
  • B60S1/3806—Means, or measures taken, for influencing the aerodynamic quality of the 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
  • B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
  • B60S1/3863—Connectors having a spoiler
• • 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
  • B60S1/3849—Connectors therefor; Connection to wiper arm; Attached to blade
  • B60S1/3865—Connectors having an integral pivot pin for connection with the wiper arm
  • B60S1/3867—Connectors having an integral pivot pin for connection with the wiper arm pin formed on the interior of side walls
• • 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
  • B60S1/3881—Flat-type wiper blade, i.e. without harness with a reinforcing vertebra rectangular section in additional element, e.g. spoiler
• • 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
  • B60S1/4038—Connections between blades and arms for arms provided with a channel-shaped end
  • B60S1/4064—Connections between blades and arms for arms provided with a channel-shaped end the channel-shaped end being provided with protrusions on, or holes in, the side walls to create a pivot
• • 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
  • B60S2001/3818—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 a channel-like element, e.g. not continuous
• • 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

Definitions

• the spring rail should ensure as uniform a distribution as possible of the wiper blade contact pressure emanating from the wiper arm on the windshield over the entire wiper blade.
• the wiper blade must therefore be somewhat stronger than the greatest curvature measured on the windshield to be wiped in the wiping field. In the unloaded state, the wiper blade is therefore curved concavely to the course of the window.
• the spring rail thus replaces the complex support bracket construction with two spring rails arranged in the wiper strip, as is practiced with conventional wiper blades (DE 15 05 357 AI).
• the invention is based on a wiper blade according to the preamble of claim 1. In a known wiper blade of this type (DE-PS 12 47 161), the wiper strip is glued to the band surface of the metallic spring rail facing the disc. This adhesive connection is during the
• the Holder of the wiper strip which improves the wiping quality and also ensures that the wiper strip is quickly and quietly moved into its required drag position when the wiper blade guided over the windshield is moved out of its reversed positions. If the sheath completely surrounds the spring rail, the otherwise unavoidable optical surface treatment of the spring rail can be dispensed with, because such a treatment can already be taken into account when selecting and coordinating the plastic to be used without additional costs. When producing the Wrapping requirements for the design of the wiper blade can also be taken into account at low cost.
• the at least one spring rail can be designed free of the requirements for the connection for an optimal distribution of the contact force.
• a particularly simple type of sheathing and the holding means for the wiper strip connected to it is achieved if the housing wall of the sheathing facing the pane is opened via a central longitudinal slot and if holding strips are arranged along the two slot edges of the housing wall, which are spaced apart from one another and which engage with mutually directed claws in these associated longitudinal grooves arranged in the two opposite sides of the wiper strip.
• This advantage can also be achieved in that the holding strips or the holding rails are divided by slots lying transversely to their longitudinal extent and at a distance from one another.
• the transverse slots in the holding rails and the transverse slots in the covering offset with respect to one another in the longitudinal direction of the wiper blade.
• the space enclosed by the casing is at least partially covered at its longitudinal ends by end walls of the casing, of which - to simplify the replacement of the wiper strip - at least one end wall can be deflected elastically.
• a wind deflector strip is molded onto the plastic covering.
• the longitudinal wall of the casing facing the pane is thicker than the other longitudinal walls of the casing. This can improve the stability of particularly long wiper blades.
• the longitudinal wall of the sheathing facing the window is designed as an additional spring rail, viewed in side view and when viewed individually, it has a curvature that deviates from the curvature of the metallic spring rail, it is possible for the metal spring rail to have a constant cross section over its entire longitudinal extent to train.
• the Adjustment of the contact force distribution through the overall spring rail - metal spring rail and plastic additional spring rail - to the requirements specified by the disk profile can be achieved solely by the design of the additional spring rail - width, thickness, curvature profile.
• a particularly simple assembly of the wiper blade is achieved if the covering is cross-divided in its central section, because then the two covering parts can each be pushed onto the metal spring rail from one end thereof.
• the two covering parts are provided with means for connecting them together.
• a further simplified construction of the wiper blade is possible if a device for connecting the wiper blade to a driven wiper arm is molded onto the plastic covering.
• FIG. 1 shows a side view of an embodiment of the invention
• FIG. 2 is a partial perspective view of a cover belonging to the wiper blade according to Figure 1
• Figure 3 is a section through the cover in a view in the direction of arrow III in Figure 2, with the wiper strip and mounted spring rail
• Figure 4 a partial perspective view of a differently designed casing
• FIG. 5 shows a section through the casing according to FIG. 4 in a view in the direction of arrow V with the wiper strip and mounted spring rail
• FIG. 6 shows a perspective end view of a wiper blade with a one-piece casing according to FIG. 2
• FIG. 8 is a plan view of a spring rail and an associated, cross-divided casing in a reduced view
• FIG. 9 shows the
• FIGS. 10 and 11 basic representations of the covering according to FIG. 3 with wind deflector strips arranged thereon
• FIG. 12 a perspective partial representation of a cross-divided covering with arranged on the covering parts
• FIG. 13 another type of transverse division of a differently designed casing
• FIG. 14a a basic illustration of the curvature of a relaxed metal spring rail
• FIG. 14b a possible course of curvature with an associated, as
• FIG. 14c shows the course of curvature after the assembly of the spring rail according to FIG. 14a and the additional spring rail according to FIG.
• An elongated wiper blade 10 shown in FIG. 1 has a band-like elongated spring rail 12
• FIG. 3 which is surrounded by a plastic sheath 14.
• the plastic covering 14 holds an elongated rubber-elastic wiper strip 16 on the metal spring rail 12 so that the spring rail 12 and the wiper strip 16 lie parallel to one another along the longitudinal axes.
• a connection device 18 is fastened either to the plastic covering 14 or to the metal spring rail 12, with the aid of which the wiper blade 10 can be connected to a wiper arm 20 guided on the motor vehicle body.
• the wiper arm 20 and thus also the wiper blade 10 are loaded in the direction of the arrow 22 toward the pane 24 of the motor vehicle indicated by a dash-dotted line in FIG. 1.
• the dash-dotted line 24 is intended to represent the strongest curvature of the window surface, it can be clearly seen that the curvature of the unloaded wiper blade 10 resting on the window with its two ends is stronger than the maximum window curvature. Relative to the window surface 24, the unloaded spring mechanism 12 or the wiper blade 10 is therefore concavely curved. Under the
• FIG. 3 shows the metal spring rail 12, which practically forms the backbone of the wiper blade 10. It is surrounded by the plastic covering 14.
• the casing 14 has a central longitudinal slot 28, via which a space 34 enclosed by the casing walls 32, 36 is opened.
• the central longitudinal slot 28 is arranged on the cladding wall 36 which, when the wiper blade 10 is ready for operation, faces the window 24 of the motor vehicle to be wiped.
• the metal spring rail 12 is housed loosely in the space 34.
• the walls 32 and 36 of the plastic sheath 14 are dimensioned so that an impairment of the
• Wiping direction reversal positions of the wiper blade 10, in the so-called drag position required for clean and noiseless wiping.
• the holding strips 40 of the plastic covering 14 are divided by slots 58 lying at a distance 56 from one another transversely to their longitudinal extension, the depth of which extends close to the covering wall 36 (FIGS. 2 and 3).
• FIGS. 4 and 5 Another embodiment of the plastic covering 114, shown in detail in FIGS. 4 and 5, corresponds essentially to the plastic covering 14 already described.
• the covering wall 136 facing the pane 24 is designed to be continuous. This results in a more stable design of the covering 114. However, it can then be particularly widespread with very long wiper blades
• the hose-like envelope 114 by transverse slots 160 extending transversely to its longitudinal extent and at a distance from one another and reaching as close as possible to the envelope wall 136 facing the disk 24 is divided.
• the slots 158 in the holding rails 140 lie, seen in the longitudinal direction, between the slots 160 in the plastic sheath 114.
• the course has been offset in such a way that the cutting course leads through both the slots 160 and the slots 158.
• the holding rails 140 are likewise provided with claws 142 directed towards one another.
• Plastic covering 114 referred to the explanations for the plastic covering 14.
• FIGS. 8 and 9 show an embodiment of the plastic covering 214 which is divided transversely in its central section in the longitudinal direction.
• the two sheathing parts 213 and 215 are then pushed onto the metallic spring rail 12 in the direction of the arrows 218 in such a way that the metallic spring rail 12 into the space 34 already described, which also applies to this
• Embodiment comes to rest. After the covering parts 213, 215 have been completely pushed onto the spring rail 12, the two separating edges 220 of the covering parts 213, 215 which then lie against one another can be connected to one another by gluing, welding or the like. It is clear that corresponding recesses must be provided in the upper cladding wall of this embodiment, which also allows the cladding parts 213, 215 to be pushed open when the connecting device 18 is fastened to the spring rail 12.
• the connecting device 318 can also be molded onto the cross-divided, two-part plastic covering 314.
• the Connection device 318 on the wrapping part 315.
• a locking tooth 334 is formed on the upper wrapping wall 332 of the wrapping part 315, which can cooperate with a locking receptacle 336 on the other wrapping part 313 when the two wrapping parts 313, 315 are joined in the direction of arrow 316. Since the latching receptacle 336 is arranged in a tab 340 of the wrapping part 313 that can be deflected elastically in the direction of the arrow 338, a simple and reliable connection of the two wrapping parts 313, 315 is achieved with one another.
• FIG. 13 Another type of transverse division of the sheathing 414 is shown in FIG. 13.
• the parting plane runs through the longitudinal axis of a connecting bolt 420 (FIG. 1) which serves to connect the wiper blade 10 to the wiper arm 20 and which belongs to the integrally formed connecting device 418.
• the two sheathing parts 413, 415 are secured to one another by the counter-connection means 19 of the wiper arm 20, which grip around the two pin halves 421, 422 when the two parts 413, 415 are joined together in the direction of the arrow 416.
• FIGS. 10 and 11 show that a wind deflector bar 570 can also be molded onto the plastic covering 514. It does not matter whether the
• Deflection strip 570 is formed on the plastic sheathing 514 in accordance with FIG. 10 or is formed in a hanging manner in accordance with FIG. Even if the cross-sectional shape of the casing according to FIGS. 2 and 3 has been chosen for the explanation of this important detail, it is also readily possible to attach the wind deflector strip 570 to a plastic casing 114 according to FIGS. 4 and 5. In this case it is of course clear that the wind deflector strip 570 must also be provided with the slots 160 of the plastic sheath shown there so that the elasticity of the Plastic covering and thus the elasticity of the spring rail 12 located in the space 34 is not impaired.
• FIGS. 14a, 14b and 14c A further, essential further development of the invention is explained below with reference to FIGS. 14a, 14b and 14c.
• a plastic sheath 600 is advantageously used, as has been illustrated and explained with reference to FIGS. 4 and 5.
• this one-piece plastic sheath 600 is designed as an additional spring rail.
• the wrapping wall designated 136 in FIGS. 4 and 5 is thickened or otherwise reinforced in such a way that its rigidity is greater than the other wrapping walls.
• Figure 14b shows that the plastic wrap 600 has positive (+) and negative (-) curvatures with respect to the disc.
• the metallic spring rail 602 (FIG. 14a) is only positively (+) curved. If the positively curved, metallic spring rail 602 is now inserted into the plastic sheath 600 preformed according to FIG.
• the suspension properties of the spring rail 602 can be changed in the desired manner.
• a major advantage of this further development of the invention is that the metallic spring rail 602 can have a constant cross section over its entire longitudinal extent.
• the adjustment of the spring rail 602 to the respective requirements determined by the shape of the windshield can be achieved by appropriate shaping and design of the additional spring rail 600.
• a shape of the overall spring rail 604 can result, as shown in FIG. 14c.
• Figures 14a, 14b and 14c are only the principle of this training should clarify. The idea of the invention can in no way be limited to the shapes shown in these figures.
• the sheath 700 has two lateral longitudinal channels 702, in which two spring rails 704 are loosely inserted.
• the spring rails 704 are held in the channels 702 by holding elements (not shown) molded onto the casing or by claws and end clips applied from the outside.
• This version is particularly suitable for realizing the combination of the different curvature curves described above.
• the metallic spring rail 12 is arranged loosely in a housing-like casing 14 or 114 or 214 or 314 which is essentially enclosed and is made of a plastic and which is provided on its side facing the disk 24 with holding means 40, 42 or 140, 142 is provided for the wiper strip 16.
• a component is glued onto the band surface of the spring rail 12, which, based on the embodiment according to FIGS. 4 and 5, has only one support plate, such as the wall 136 there, to which the holding rails are molded in accordance with 140.
• Such a component made of a plastic is more securely to be glued to the metal spring rail than a rubber wiper strip, because - due to the large number of material admixtures in the rubber - even the smallest mixture changes can lead to problems when gluing. Such difficulties do not occur when metal and plastic are glued.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Quality & Reliability (AREA)
• Springs (AREA)
• Window Of Vehicle (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=7854530

Family Applications (1)

Country Status (6)

Families Citing this family (49)

Family Cites Families (9)

• 1998
  • 1998-01-14 DE DE19801058A patent/DE19801058A1/de not_active Ceased
  • 1998-09-29 KR KR1019997008179A patent/KR20000076091A/ko not_active Application Discontinuation
  • 1998-09-29 WO PCT/DE1998/002878 patent/WO1999036300A1/de not_active Application Discontinuation
  • 1998-09-29 EP EP98958175A patent/EP0966373A1/de not_active Withdrawn
  • 1998-09-29 JP JP53661699A patent/JP2001516310A/ja active Pending
• 1999
  • 1999-01-13 ZA ZA9900211A patent/ZA99211B/xx unknown

Non-Patent Citations (1)

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