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
  • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
  • B60S1/48—Liquid supply therefor
  • B60S1/52—Arrangement of nozzles; Liquid spreading means
  • B60S1/522—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms
  • B60S1/524—Arrangement of nozzles; Liquid spreading means moving liquid spreading means, e.g. arranged in wiper arms arranged in 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
  • B60S1/381—Spoilers mounted on the squeegee or on the vertebra
• • 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
  • B60S1/38—Wiper blades
  • B60S2001/3898—Wiper blades method for manufacturing wiper blades

Definitions

• Wiper blade member comprising at least one windshield washer fluid distribution channel
• the present invention relates to the field of cleaning a vehicle windshield, in particular automobile. It relates to a windscreen wiper member provided with at least one washer fluid distribution channel, and a wiper blade comprising such a member. It also relates to a method of manufacturing the organ.
• Such a device has the significant disadvantage of using nozzles which are necessarily remote from the windshield, which makes it difficult to obtain a uniform watering of the windshield.
• said member comprises in said at least one channel means for spreading said liquid.
• spreading means configured to longitudinally spread the liquid within said at least one channel, so that the liquid after spreading occupies a cross section of the channel less than the cross section. he occupied before spreading. Thus, after spreading, the liquid no longer occupies the entire section of the channel.
• the spreading means may be means integrated in the organ. They can be for example geometric means.
• the spreading means may in particular be in the form of a groove, slot, groove or slot, formed in the member at the periphery of the channel and capable of absorbing by capillarity and / or gravity at least a portion of the liquid .
• the spreading means may be constituted by the actual shape of the channel, for example by a shape allowing the liquid to be spread by capillarity, typically by a channel provided with at least one longitudinal edge.
• the presence of the spreading means makes it possible to spread the residual liquid in the channel and thus to reduce the cross section of the ice plugs formed in the channel, so that the ice plugs no longer occupy the channel. entire section of the channel, which allows a subsequent passage of washer fluid in the channel.
• the spreading means may extend longitudinally over at least a part of the length of said at least one channel, or even over substantially the entire length of said at least one channel.
• the spreading means are advantageously arranged to respect the minimum thickness of said at least one channel.
• the thickness of a channel is defined by the minimum distance between a point of said channel and the outer envelope of the object member of the invention.
• the minimum thickness of the channel is provided to ensure good behavior of the channel during sweeping movements, in particular by avoiding excessive deformation of the internal section of the duct which would be detrimental to the circulation of the liquid.
• the thickness of the channel at the level of the spreading means is greater than or equal to the minimum thickness of the channel.
• the spreading means may comprise at least one slot formed in the member at the periphery of said at least one channel and capable of collecting by capillarity and / or gravity at least a portion of the liquid.
• each slot is advantageously formed at the periphery of a lower zone of said at least one channel.
• each slot is advantageously formed in the member so that, in cross section, once the member integrated with the brush, the acute angle between the longitudinal plane of symmetry of the slot and the longitudinal plane of symmetry. the broom is less than or equal to 45 °.
• the longitudinal plane of symmetry of the blade is defined as the longitudinal plane of symmetry of the blade of the blade.
• the spreading means may comprise a plurality of slots, preferably two, and the spreading means may be formed at the periphery of a lower area of said at least one channel.
• the member may comprise two channels and the spreading means may comprise in each channel two slots formed at the periphery of a lower zone of said channel.
• the member may in particular comprise two converging slots and two substantially parallel slots.
• said at least one channel is preferably of curved section, preferably circular.
• the spreading means comprise at least a longitudinal portion of said at least one channel having at least one longitudinal edge, said at least one longitudinal portion being in particular of polygonal cross section.
• the spreading means may further comprise spreading means according to the first embodiment.
• the member may be a cover member of the blade.
• the cover member may comprise in particular an aerodynamic deflector.
• the invention also relates to a method for manufacturing a wiper blade member described above, the method comprising a step of forming liquid spreading means in said at least one channel.
• the step of forming the spreading means may comprise forming in the member at least one longitudinal slot at the periphery of said at least one channel.
• the step of forming liquid spreading means may comprise the formation in said at least one channel of at least one longitudinal portion of polygonal cross section.
• FIG. 1 is an exploded perspective view of a wiper blade connected to the end of a brush arm
• FIG. 7 is a cross-sectional view of a windscreen wiper blade of FIG. 6, the blade comprising frozen residues of windshield washer fluid, and
• FIG. 10 is a cross-sectional view of a windscreen wiper blade according to the invention, according to a first variant of the first embodiment,
• FIG. 11 is a cross-sectional view of the blade of FIG. 10, in operative configuration of the blade
• FIG. 12 is a cross-sectional view of a windscreen wiper blade according to the invention, according to a second variant of the first embodiment
• FIG. 13 is a cross-sectional view of a windscreen wiper blade according to the invention, according to a second embodiment
• the longitudinal or lateral names refer to the orientation of the wiper blade according to the invention.
• the longitudinal direction corresponds to the main axis of the blade in which it extends
• the lateral orientations correspond to intersecting straight lines, that is to say which intersect the longitudinal direction, in particular perpendicular to the longitudinal axis of the blade. broom in his plane of rotation.
• the outer or inner names are assessed relative to the point of attachment of the blade on a brush arm, the inner denomination corresponding to the part where the arm and a half-brush extend.
• the directions referenced as upper or lower correspond to orientations perpendicular to the plane of rotation of the wiper blade, the lower denomination containing the plane of the windshield.
• FIG. 1 shows a windscreen wiper, in particular a motor vehicle windshield, this wiper comprising a wiper blade 10 and a wiper arm 12 which is partially shown and intended to be driven by a motor to follow a back-and-forth angular movement to evacuate the water and possibly other undesirable elements covering the windshield.
• the blade 10 here comprises a longitudinal cover member 14, a longitudinal scraper blade 16, generally of rubber, and at least a longitudinal vertebra 18 which gives a stiffening to the blade 16 so as to promote the application of this blade 16 on the windshield.
• the blade 10 further comprises hooks or hooking clips 22 of the blade 16 and the vertebra 18 on the cover member 14, these clips 22 being located at each of the longitudinal ends of the cover member 14.
• the cover member 14 of the brush is here made in two independent parts which are arranged substantially end to end and separated from one another by an intermediate connector 24.
• This connector 24 is thus interposed between the two parts of the cover member 14 and may comprise means for fluidically connecting the washer fluid supply means of the connector 24 to the conduits of the member 14.
• the blade 10 comprises an adapter 26 mounted on the connector 24 and allowing an articulation of the blade 10 relative to the arm 12.
• the articulation of the blade 10 relative to the arm 12 is a hinge according to a rotational movement about an axis of rotation Y perpendicular to the longitudinal axis of the blade 10.
• the blade 10 must in fact have at least one degree of freedom in rotation relative to the arm 12, and more specifically with respect to a part terminal 28 of the arm 12, to allow the blade 10 to follow the curvature of the windshield.
• FIG. 2 represents an embodiment of a wiper blade 10 'of the state of the art, this wiper 10' comprising, in addition to the characteristics described above with reference to FIG. longitudinal support 30a of the blade 16 and the vertebra 18.
• the support member 30a comprises two lateral longitudinal ribs 46, for example in the form of two blades. These ribs 46 are substantially coplanar, each rib 46 extending laterally on the opposite side to the other rib.
• the rib 46 located at the front of the blade 10 'thus extends forward and the rib 46 located at the rear of the blade extends rearwardly.
• the hooks 50 are substantially coplanar and each define a slot in which the support member 30a can slide and is mounted.
• the hook 50 located at the front of the blade thus extends rearward and the hook 50 located at the front of the blade extends forward.
• the vertebra 18 has a curved shape at rest and comprises a convex curved upper face and a concave curved lower face.
• part of the liquid may remain inside one or more channels 45a, 45b of the wiper 10 '. of the state of the art, especially in the form of drops that remain blocked at certain points of the ramp.
• ice plugs 48 may then be formed in the channels 45a, 45b, making it impossible to dispense windscreen washer fluid.
• FIGS. 4 and 5 ice plugs 48 formed in the high ramp 45b are shown.
• the slots 49 are advantageously formed in a lower portion of the channels 45a, 45b, so that in cross section their axes of symmetry are slightly inclined relative to the vertical in operational configuration
• the acute angle ⁇ between the longitudinal plane of symmetry F of the slot 49 and the longitudinal plane of symmetry B of the blade 10 is advantageously less than or equal to 45.degree. ° ( Figure 9).
• the longitudinal plane of symmetry B of the blade 10 is defined as being the longitudinal plane of symmetry of the blade 16.
• the channels 45a, 45b may each comprise at least two longitudinal slots 49 formed in a lower portion of the blade 10 ( Figure 10).
• the channels 45a, 45b may each comprise at least two longitudinal slots 49 formed in a lower portion of the blade 10 ( Figure 10).
• the spreading means consist of at least one longitudinal portion of the blade 10, preferably the entire length of the blade 10, in which the cross section S channels 45a, 45b has at least one angle (or edge). In this embodiment, it is the angle or angles of the channels 45a, 45b that generate capillarity.
• the channels 45a, 45b thus typically have a polygonal cross section S, for example a square section S as illustrated in FIG. 13.
• the formation of the spreading means comprises, for example during the extrusion of the channels 45a, 45b of the member 14, the formation of at least one longitudinal slot 49 at the periphery of the at least one of the channels 45a, 45b.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Quality & Reliability (AREA)
• Water Supply & Treatment (AREA)
• Pivots And Pivotal Connections (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=56263790

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Family Cites Families (10)

• 2016
  • 2016-01-19 FR FR1650399A patent/FR3046765B1/fr active Active
• 2017
  • 2017-01-19 US US16/069,792 patent/US20190009751A1/en not_active Abandoned
  • 2017-01-19 EP EP17701456.0A patent/EP3405368A1/de not_active Withdrawn
  • 2017-01-19 WO PCT/EP2017/051112 patent/WO2017125510A1/fr active Application Filing

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