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GB2234670A - Wiper blade lamina - Google Patents

Wiper blade lamina Download PDF

Info

Publication number
GB2234670A
GB2234670A GB9016767A GB9016767A GB2234670A GB 2234670 A GB2234670 A GB 2234670A GB 9016767 A GB9016767 A GB 9016767A GB 9016767 A GB9016767 A GB 9016767A GB 2234670 A GB2234670 A GB 2234670A
Authority
GB
United Kingdom
Prior art keywords
lamina
blade assembly
windscreen
wiper
wiper according
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.)
Granted
Application number
GB9016767A
Other versions
GB9016767D0 (en
GB2234670B (en
Inventor
Marcello Scorsiroli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Federal Mogul Italy SRL
Original Assignee
Cooper Industries Italia SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Cooper Industries Italia SpA filed Critical Cooper Industries Italia SpA
Publication of GB9016767D0 publication Critical patent/GB9016767D0/en
Publication of GB2234670A publication Critical patent/GB2234670A/en
Application granted granted Critical
Publication of GB2234670B publication Critical patent/GB2234670B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B60S1/38—Wiper blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
    • 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
    • B60S2001/3817—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Laminated Bodies (AREA)
  • Springs (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

A wiper blade lamina 18d has at least a portion which is curved in shape. The lamina may be curved at one end only, centrally, or along its length in a sinuous manner, or at each end, the curvature at one end being opposite to that at the other end. A notch 20 may be formed at one end of the lamina for fixing purposes. <IMAGE>

Description

BLADE ASSEMBLY FOR WINDSCREEN WIPER WITH A CONTOUR OF VARIABLE PROFILE 1
is The present invention relates to a blade assembly for a windscreen-wiper consisting ofi a framework formed from at least one arc-shaped element and bearing a wiper element made of elastomeric material and provided with a longitudinal reinforcement of flexible metal lamina.
In known blade assemblies for winds c reen-wipers.. the lamina reinforcementy which can consist of one or more laminae,, has a constant contour,, which means that the wiper element assumes over Its entire length a concave or convex shape,, having at all points along it the sa curvature.
]Known blade assemblies have the disadvantage of not guaranteeing good adhesion of the wiper element over its entire length on the rear window or windscreen on which they are mounted,, particularly when the latter have curvatures which are very pronounced or variable at certain points along them.
For the purpose of eliminating the disadvantage.referred to. the subject of the present invention consists of a blade assembly for a windscreenwiper of the type indicated above. characterized In that the abovementioned reinforcement of flexible metal lamina has a contour of variable profile.
The blade assembly according to the Invention has the advantage of being capable of being adapted according to a particular required shape and thus of adapting,, for example in the case of use on a windscreen, to the substantial difference in curvature which the latter has In the area of the parts In front of the driver and the passenger.
Further advantages and characteristics of the present Invention will become clear from the detailed description which follows and which in made with reference to the attached drawings which are provided by way of non-limitative example and In which:
Figure 1 in a perspective view of a blLde assembly for a windscreen-wiper according to the Invention; Figure 2 is a perspective view of a detail of the is blade assembly in Figure 1; Figures 3 to 7 are perspective views which Illustrate alternative embodiments of the element illustrated in Figure 2; Figure 8 is a schematic perspective view which illustrates a machine for the production of an element of the blade assembly according to the invention, and Figure 9 in a schematic view of a detail of Figure 8.
A blade assembly for a windscreen-wiper (Fgure 1) consists of a framework 2 formed from a main arc-shaped element 4 which supports at its ends a f Irst pair of secondary arc-shaped elements 6 which with their Internal ends In turn support a second pair of secondary arcshaped elements 8. The free ends of the arc-shaped elements 6 r 8 are provided with C-shaped hooks 10 which are arranged transversely in relation to the longitudinal direction of the arc-shaped elements 6. 8.
The framework 2 supports a wiper element 12. known per se. of elongate shape and made of elastomeric material. which has a transverse crosssection in the form of a triple T. having two continuous longitudinal grooves 141 16 on each of its sides. The hooks 10 of the fram work 2 engage In the pair of grooves 14 furthest from the framework 2. securing the wiper element 12 to the latter. In the other pair of grooves 16. a pair of flexible metal laminae 18a for reinforcement of the wiper element In located,, which have a notch 20 to favour their fixing. The laminae 18a (Figure 2) have a contour of variable profile, one end curved and the remaining part rectilinear,. and thus make the wiper element 12 assume a similar shape. which is suited to a corresponding profile of a windscreen or rear window.
Figures 3 to 7 illustrate alternative embodiments of flexible metal laminae of variable profile which can be mounted on blade assemblies of the type described above In order to be suited to different requirements of use.
Figure 3 illustrates a pair of laminae 18b which have a curve in an essentially central position.
1 is Figure 4 illustrates a pair of laminae 18c which have a plurality of curves.
Figure 5 illustrates a pair of laminae 18d which have a pair of curves in an essentially symmetrical position in relation to their central part.
Figure 6 illustrates a pair of laminae 18e which have the ends curved with opposite convexity.
Figure 7 illustrates a pair of laminae 18f which have one end curved and the remaining part of opposite convexity.
Figures 8 and 9 illustrate a machine 22 for the. production of flexible metal laminae 18 which have a contour of variable profile. This machine 22 has a casing 24 which is provided with an opening 26 for the introduction of the lamina 18 to be worked. Beyond the opening 26, two counter-rotating rollers 28 for drawing in the lamina 18 are arranged and downstream of these a roller 30 which is movable transversely to the direction of advance of the lamina 18, in a direction which is orthogonal to its general plane. The rollers 28, 30 are operated by an electric motor 32.
In the functioning of the machine 22, the lamina 18 is introduced into the opening 26, possibly already curved beforehand according to a constant profile. It is then drawn in by the pair of rollers 28 and subjected to curving at predetermined points an a result of the translation of the movable roller 30 (the direction of movement of which is indicated by the arrow 34 in Figure 9), which is controlled by means of conventional adjustable sensors and timers.
Obviously the effects of the present invention extend to models which achieve similar utility using the same innovative idea.

Claims (7)

1. Blade assembly for a windscreen-wiper consisting o f.
a framework (2) formed from at least one arcshaped element (4) and bearing a wiper element (12) 0 made of elastomeric material, provided with a longitudinal reinforcement of flexible metal lamina.
said blade assembly being characterized in that said reinforcement of flexible metal lamina (18) has a contour of variable profile
2. Blade assembly for a windscreen-wiper according to Claim 1. characterized In that the lamina (18a) has one end curved and the remaining part rectilinear.
3. Blade assembly for a windscreen-wiper according to Claim 1,, characterized In that the lamina (18b) has a curve in an essentially central position.
4. Blade assembly for a windscreen-wiper according to Claim 1. characterized In that the lamina (18c) has a plurality of curves.
5. Blade assembly for a windscreen-wiper according to Claim 4,. characterized in that the lamina (18d) has a pair of curves In an essentially symmetrical position in relation to its central part.
6. Blade assembly for a windscreen-wiper according to Claim 1,, characterized In that the lamina (10) has the ends curved with opposite convg%A.1y,,
7. Blade assembly for a windscreen-wiper according to Claim 1. characterized In that the lamina (18f) has one end curved and the remaining part of opposite convexity.
The whole essentially as described and Illustrated with reference to the attached drawings and for the specified purposes.
Published 1991 atThe Patent Office. State House. 66/71 High Holloom, London WCIR47?. Further copies may be obtained from Sales Branch. Unit 6. Nire mile point Cwmflinfach. Cross Keys. Newport. NPI 7HZ. Printed by Multiplex techniques lid. St Mary Cray. Kent.
GB9016767A 1989-08-11 1990-07-31 Blade assembly for windscreen wiper with a contour of variable profile Expired - Fee Related GB2234670B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5330789U IT217172Z2 (en) 1989-08-11 1989-08-11 WIPER SPATULA WITH VARIABLE PROFILE CEN TINA

Publications (3)

Publication Number Publication Date
GB9016767D0 GB9016767D0 (en) 1990-09-12
GB2234670A true GB2234670A (en) 1991-02-13
GB2234670B GB2234670B (en) 1993-10-27

Family

ID=11281676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9016767A Expired - Fee Related GB2234670B (en) 1989-08-11 1990-07-31 Blade assembly for windscreen wiper with a contour of variable profile

Country Status (8)

Country Link
BE (1) BE1002972A3 (en)
DE (2) DE4025297A1 (en)
ES (1) ES2023761A6 (en)
FR (1) FR2650798A1 (en)
GB (1) GB2234670B (en)
IT (1) IT217172Z2 (en)
PL (1) PL166082B1 (en)
RU (1) RU1836245C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152329A1 (en) * 2011-12-14 2013-06-20 Federal-Mogul Corporation Windscreen wiper device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743041B1 (en) * 1995-12-28 1998-01-30 Valeo Systemes Dessuyage CURVED WIPER BLADE FOR MOTOR VEHICLE COMPRISING INTERCHANGEABLE LEVER
DE102007057631A1 (en) * 2007-11-30 2009-06-04 Volkswagen Ag Wiper blade for a vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873346A (en) * 1959-05-18 1961-07-26 John Will Anderson A windshield wiper
GB887637A (en) * 1958-10-24 1962-01-24 John Will Anderson Windshield wiper blade
GB1012902A (en) * 1962-05-21 1965-12-08 Walter Daniel Appel Windshield wiper blade assembly
US3795935A (en) * 1971-11-11 1974-03-12 Pylon Mfg Corp Universal blade construction
US4343063A (en) * 1980-09-29 1982-08-10 Trico Products Corporation Windshield wiper assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933608C (en) * 1945-12-22 1955-09-29 Trico Products Corp Wiper for cleaning curved windshields
US2767419A (en) * 1952-12-17 1956-10-23 Trico Products Corp Windshield wiper blade
FR2193370A5 (en) * 1972-07-19 1974-02-15 Sev Marchal
IT1118510B (en) * 1979-03-23 1986-03-03 Apman Spa TERGIORISTALLO SPATULA

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB887637A (en) * 1958-10-24 1962-01-24 John Will Anderson Windshield wiper blade
GB873346A (en) * 1959-05-18 1961-07-26 John Will Anderson A windshield wiper
GB1012902A (en) * 1962-05-21 1965-12-08 Walter Daniel Appel Windshield wiper blade assembly
US3795935A (en) * 1971-11-11 1974-03-12 Pylon Mfg Corp Universal blade construction
US4343063A (en) * 1980-09-29 1982-08-10 Trico Products Corporation Windshield wiper assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152329A1 (en) * 2011-12-14 2013-06-20 Federal-Mogul Corporation Windscreen wiper device
CN104114420A (en) * 2011-12-14 2014-10-22 费德罗-莫格尔公司 Windscreen wiper device
US9333947B2 (en) 2011-12-14 2016-05-10 Federal-Mogul Corporation Windscreen wiper device
US9469276B2 (en) 2011-12-14 2016-10-18 Federal-Mogul Corporation Windscreen wiper device
US9481343B2 (en) * 2011-12-14 2016-11-01 Federal-Mogul Corporation Windscreen wiper device
US20170043748A1 (en) * 2011-12-14 2017-02-16 Federal-Mogul Corporation Windscreen wiper device
US9643573B2 (en) 2011-12-14 2017-05-09 Federal-Mogul Llc Windscreen wiper device
US10703339B2 (en) 2011-12-14 2020-07-07 Trico Products Corporation Windscreen wiper device

Also Published As

Publication number Publication date
PL166082B1 (en) 1995-03-31
PL286435A1 (en) 1991-04-08
DE4025297A1 (en) 1991-02-14
RU1836245C (en) 1993-08-23
IT217172Z2 (en) 1991-11-12
GB9016767D0 (en) 1990-09-12
FR2650798B1 (en) 1995-05-12
ES2023761A6 (en) 1992-02-01
BE1002972A3 (en) 1991-10-08
IT8953307V0 (en) 1989-08-11
FR2650798A1 (en) 1991-02-15
DE9011630U1 (en) 1990-10-11
GB2234670B (en) 1993-10-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040731