WO1994020337A1 - Ressort pour bras d'essuie-glace - Google Patents
Ressort pour bras d'essuie-glace Download PDFInfo
- Publication number
- WO1994020337A1 WO1994020337A1 PCT/CA1994/000086 CA9400086W WO9420337A1 WO 1994020337 A1 WO1994020337 A1 WO 1994020337A1 CA 9400086 W CA9400086 W CA 9400086W WO 9420337 A1 WO9420337 A1 WO 9420337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support arm
- spring
- arm
- hook
- 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
- B60S1/3463—Means to press blade onto screen
- B60S1/3475—Means to press blade onto screen with blade or leaf springs
-
- 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
Definitions
- This invention relates to vehicle wiper arms, and more particularly to a spring for a wiper arm.
- the wiper arm of vehicles already has certain means for maintaining a certain pressure of the rubber blade against the windshield.
- the wiper arm does not rest very high on the windshield and the coil tension spring which is stretched between a base attached to a splined drive shaft and a swivel wiper arm, does not not free enough space to release a long enough arm moment to create enough pressure on the blade, compared to the force exerted by the spring, since it works in tension with a short lever.
- the spring must be extremely powerful in relation to the force of the arm and the pivot in order to create a moment large enough to generate good pressure on the blade so that in turn, the wiper blade produces a satisfactory wiping action on the windshield.
- the wind-induced lifting effect on the arm and broom counterbalances the force exerted by the spring and thus reduces the wiping action of the broom.
- the spring consists of an elastic rod curved so as to define a portion of helical intermediate torsion, with a hook at each end formed so as to surround the fixed base and the pivoting arm of the wiper pivoting in such a way that an additional force is applied to the wiper blade by the crank effect induced by the helical torsion portion. In this way, the wiper blade receives enough pressure to provide satisfactory wiping action and to withstand the lifting effect induced by the wind.
- the spring remains hooked correctly even if the support arm is pivoted away from the windshield.
- the spring can be installed as an addition to most existing vehicles, without the need for special tools or modifications.
- This invention therefore relates to a spring for engaging and a wiper support arm and a base part by which said support arm is articulated about a pivot axis for a pivoting movement relative to a windscreen. breeze to be engaged by a blade carried by said support arm, each of said base portion and the support arm having an upper surface, a lower surface, and a first and second side, said spring consisting of a bent elastic rod so as to include an intermediate spiral section consisting of at least two coaxial turns defining an inner turn and an outer turn, a first and a second U-shaped hook section each including an upper arm and a lower arm connected by a leg portion, and each hook section opening towards said spiral section with its upper and lower arms being generally parallel to the axis of the spiral section, the lower arm of said first hook section starting directly from said inner turn, a connecting arm connecting said second hook section to said spiral section, merging with and generally tangent to said outer turn and merging with said upper arm of said second hook section, said spring being intended to be placed on said base part and on said
- Figure 1 shows a top plan view of a wiper arm connected to the fixed base and with the spring of the invention surrounding it;
- Figure 2 is a side view of the arrangement of Figure 1;
- Figure 3 is a side view opposite to that of the arrangement of Figure 1, showing in dotted lines the spring in the constrained operating position, and in solid lines the unstressed portion of the spring before it is hooked to the support arm wiper; and
- Figure 4 shows a top plan view of the helical torsion spring.
- the spring according to the invention consists of an elastic rod made of a solid, water-proof material such as plastic or metal.
- the rod is curved so as to include a spiral intermediate section, 1, preferably making four to five turns.
- An end portion of the rod defines a first U-shaped hook section, constituted by a lower arm 8 and an upper arm 6, parallel to each other, and which are joined by a tab 10.
- L another end portion of the rod defines a second U-shaped hook section consisting of a lower arm 7 and an upper arm which are parallel to one another, which are joined by a tab 2.
- the two hook sections open towards the spiral section 1 and all the arms 8, 6, and 7 and 11 are parallel to each other and generally parallel to the axis of the spiral section 1.
- the lower arm 8 of the first hook section projects directly from the inner coil of spiral section 1.
- a connecting arm 12 connects the outer coil of the spiral section 1 to the upper arm 11 of the second hook section.
- the two legs 2 and 11 are generally coplanar.
- the connecting arm 12 is generally tangent to the outer turn of the spiral section 1 and is inclined towards the plane containing the tabs 2 and 10 from the outer turn of the spiral section 1.
- the spring is intended to be placed on a conventional wiper support arm 3, which is pivoted at 9 to the base part 4 which is installed on a conventional drive splined shaft 5 in order to produce a wiping movement of a blade (not shown) on a windshield (not shown), this rubber blade being carried by the blade located at the end of the wiper arm, 3.
- the spiral section 1 is on one side of the base part 4 and the support arm 3, in the region of the pivot axis 9 and with the axis of the spiral section being generally parallel to said pivot pin 9.
- the two legs 10 and 2 pass on the sides of the base part 4 and of the support arm 3, which are opposite to the spiral section 1, while the lower arm 8 and the upper arm 6 pass transversely to the base part 4 and are applied against the underside and the top face of the base portion 4, respectively.
- the arms 11 and 7 of the second hook section extend transversely to the support arm 3 with the upper arm 11 and the lower arm 7 which are applied against the upper face and the underside respectively of the support arm 3 .
- the two upper arms 6 and 11 are more distant from one another and also relative to the pivot axis 9 than to the lower arms 8 and 7.
- the spring Since the arm 7 of the second hook portion passes under the support arm 3, the spring remains firmly attached to said support arm 3 even when the latter is pivoted about the axis 9 away from the windshield, eg during cleaning.
- section 1 is spiraled with numerous turns allows the support arm to pivot at least 90 degrees relative to the base part 4, without the spring reaching its elastic limit and breaking. Likewise, the numerous turns of the spiral section 1 make it possible to produce a spring which applies greater pressure to the support arm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69410444T DE69410444T2 (de) | 1993-03-01 | 1994-02-18 | Anpressfeder für einen scheibenwischerarm |
AU60351/94A AU6035194A (en) | 1993-03-01 | 1994-02-18 | Wiper arm spring |
JP6519408A JP2934316B2 (ja) | 1993-03-01 | 1994-02-18 | ワイパーアーム用ばね |
EP94906812A EP0686104B1 (fr) | 1993-03-01 | 1994-02-18 | Ressort pour bras d'essuie-glace |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/024,467 US5320333A (en) | 1993-03-01 | 1993-03-01 | Spring for windshield wiper arm |
US08/024,467 | 1993-03-01 | ||
CA002122993A CA2122993C (fr) | 1993-03-01 | 1994-02-18 | Ressort pour balai d'essuie-glace |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994020337A1 true WO1994020337A1 (fr) | 1994-09-15 |
Family
ID=25677248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA1994/000086 WO1994020337A1 (fr) | 1993-03-01 | 1994-02-18 | Ressort pour bras d'essuie-glace |
Country Status (4)
Country | Link |
---|---|
US (1) | US5320333A (fr) |
AU (1) | AU6035194A (fr) |
CA (1) | CA2122993C (fr) |
WO (1) | WO1994020337A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479077A (en) * | 1994-06-21 | 1995-12-26 | Hughes Aircraft Company | Window wiper system for infrared camera |
US6553623B2 (en) * | 2001-03-27 | 2003-04-29 | Michael W. Long | Automatic pivot door opener |
CA2417549C (fr) * | 2003-01-31 | 2006-12-19 | Francois Lebel | Compresseur a pression variable amovible pour jambe de bras de soutient d'essuie-glace |
US6931691B1 (en) * | 2003-07-17 | 2005-08-23 | Der 3 Products | Wiper spring |
US7093877B2 (en) * | 2004-02-09 | 2006-08-22 | M & C Corporation | Gutter mounted deck lid hinge |
US20050172453A1 (en) * | 2004-02-09 | 2005-08-11 | M & C Corporation | Single pivot hinge with integral coil spring assist |
US8650702B1 (en) | 2012-11-29 | 2014-02-18 | Jean Koch | Spring for windshield wiper assemblies |
US9297193B1 (en) * | 2015-08-15 | 2016-03-29 | James Bell Martin | Door opener aid |
DE102015219529A1 (de) * | 2015-10-08 | 2017-04-13 | Robert Bosch Gmbh | Wischarm sowie Scheibenwischanlage für ein Kraftfahrzeug |
US11047162B1 (en) * | 2020-03-03 | 2021-06-29 | Leonard Tennessee | Torsion spring door closing apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB249136A (en) * | 1925-03-11 | 1927-08-11 | Trico Products Corp | Improvement in windshield cleaner |
US2602950A (en) * | 1948-05-27 | 1952-07-15 | Marquette Metal Products Co | Wiper drive arm mechanism |
US2885710A (en) * | 1957-01-23 | 1959-05-12 | Brasty Joseph | Spring for windshield wiper arms |
GB2189984A (en) * | 1986-05-08 | 1987-11-11 | Champion Spark Plug Italiana | Wiper arm with helical torsion biassing spring |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1974342A (en) * | 1931-02-25 | 1934-09-18 | Paul L Morris | Spring tooth for peanut pickers |
US2660748A (en) * | 1951-07-11 | 1953-12-01 | Ind Devices Of America Inc | Windshield wiper tensioning attachment |
JPH0613284B2 (ja) * | 1985-01-16 | 1994-02-23 | アイシン精機株式会社 | ワイパ装置 |
JPS6259151A (ja) * | 1985-09-06 | 1987-03-14 | Ichikoh Ind Ltd | 押圧力の調整可能なワイパ装置 |
US4993102A (en) * | 1987-09-03 | 1991-02-19 | Asmo Co., Ltd. | Variable-driving unit for wipers and a wiper device incorporating the same |
DE3739510A1 (de) * | 1987-11-21 | 1989-06-01 | Swf Auto Electric Gmbh | Wischarm, insbesondere fuer kraftfahrzeug-scheibenwischeranlagen |
JP2758453B2 (ja) * | 1989-09-08 | 1998-05-28 | アイシン精機株式会社 | アーム圧可変ワイパ装置 |
US5008971A (en) * | 1989-10-20 | 1991-04-23 | United Technologies Electro Systems, Inc. | Windshield wiper arm |
US5062175A (en) * | 1990-05-16 | 1991-11-05 | General Motors Corporation | Windshield wiper with adjustable wiping pressure |
-
1993
- 1993-03-01 US US08/024,467 patent/US5320333A/en not_active Expired - Lifetime
-
1994
- 1994-02-18 AU AU60351/94A patent/AU6035194A/en not_active Abandoned
- 1994-02-18 WO PCT/CA1994/000086 patent/WO1994020337A1/fr active IP Right Grant
- 1994-02-18 CA CA002122993A patent/CA2122993C/fr not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB249136A (en) * | 1925-03-11 | 1927-08-11 | Trico Products Corp | Improvement in windshield cleaner |
US2602950A (en) * | 1948-05-27 | 1952-07-15 | Marquette Metal Products Co | Wiper drive arm mechanism |
US2885710A (en) * | 1957-01-23 | 1959-05-12 | Brasty Joseph | Spring for windshield wiper arms |
GB2189984A (en) * | 1986-05-08 | 1987-11-11 | Champion Spark Plug Italiana | Wiper arm with helical torsion biassing spring |
Also Published As
Publication number | Publication date |
---|---|
US5320333A (en) | 1994-06-14 |
AU6035194A (en) | 1994-09-26 |
CA2122993A1 (fr) | 1994-06-05 |
CA2122993C (fr) | 1996-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2152551B1 (fr) | Dispositif de liaison comportant des moyens de limitation du retournement | |
FR2882710A1 (fr) | Support pour gobelet pour automobile | |
EP0410854A1 (fr) | Déflecteur d'air mobile pour balai d'essuie-glace, notamment de véhicule automobile | |
WO2006131628A1 (fr) | Dispositif de commande de l’ouverture du capot d’un vehicule, notamment pour proteger la tete d’un pieton en cas de choc | |
WO2010106262A1 (fr) | Toit souple pour vehicule automobile et vehicule equipe d'un tel toit | |
WO1994020337A1 (fr) | Ressort pour bras d'essuie-glace | |
FR2736572A1 (fr) | Pince-etau | |
FR2872434A1 (fr) | Fixation de chaussure de sport sur planche de glisse avec chaussage/dechaussage facilite | |
CH628389A5 (fr) | Entrebailleur de porte. | |
WO2006063781A1 (fr) | Agencement de liaison debrayable d’un bras d’essuie glace sur un arbre moteur | |
FR2791630A1 (fr) | Vehicule automobile a element aerodynamique escamotable | |
EP1493664A1 (fr) | Verrouillage des capots de nacelle d'un turboreacteur | |
WO2015110764A1 (fr) | Casque de protection avec mentonniere mobile | |
EP0686104A1 (fr) | Ressort pour bras d'essuie-glace | |
FR2940934A1 (fr) | Vehicule automobile comprenant un toit ouvrant monte mobile sur le pavillon de ce vehicule | |
EP0479663B1 (fr) | Dispositif d'arrêt de porte pour véhicules | |
EP1213038B1 (fr) | Lance à incendie comportant un dispositif de sécurité pour l'empêcher de se déplacer sous l'action de l'eau assurant son alimentation | |
FR2696779A1 (fr) | Verrou automatique de sécurité pour volets roulants. | |
FR2940745A1 (fr) | Ensemble a vehicule tracteur et machine de traitement du sol, telle qu'une machine de debroussaillage-broyage de vegetaux | |
EP0506542B1 (fr) | Déflecteur d'air à ailerons, notamment pour véhicule automobile | |
FR2908368A1 (fr) | Baguette de protection exterieure pour portiere de vehicule automobile. | |
EP0319357B1 (fr) | Exutoire de fumées ou ouverture de toiture analogue à grand débattement du panneau de fermeture | |
EP0207823A1 (fr) | Pince pour l'ouverture de bocaux pressurisés | |
FR2561604A3 (fr) | Dispositif de freinage pour un moyen de transport a traineau | |
BE1003725A3 (fr) | Agencement pour l'ouverture et la fermeture de la porte d'un vehicule mobile, tel qu'un vehicule a passagers. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2122993 Country of ref document: CA |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR BY CA CH CN CZ DE DK ES FI GB HU JP KP KR KZ LK LU LV MG MN MW NL NO NZ PL PT RO RU SD SE SK UA UZ VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1994906812 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1994906812 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWG | Wipo information: grant in national office |
Ref document number: 1994906812 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: CA Ref document number: 2122993 Kind code of ref document: A Format of ref document f/p: F |