FR2516879A1 - Windscreen wiper arm for car - incorporates rod which limits rotational movement between arm and mounting head - Google Patents

Windscreen wiper arm for car - incorporates rod which limits rotational movement between arm and mounting head Download PDF

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Publication number
FR2516879A1
FR2516879A1 FR8122129A FR8122129A FR2516879A1 FR 2516879 A1 FR2516879 A1 FR 2516879A1 FR 8122129 A FR8122129 A FR 8122129A FR 8122129 A FR8122129 A FR 8122129A FR 2516879 A1 FR2516879 A1 FR 2516879A1
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France
Prior art keywords
arm
casing
head
axis
rod
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
FR8122129A
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French (fr)
Other versions
FR2516879B3 (en
Inventor
Emile Nougrigat
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.)
Ducellier et Cie
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Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Priority to FR8122129A priority Critical patent/FR2516879A1/en
Publication of FR2516879A1 publication Critical patent/FR2516879A1/en
Application granted granted Critical
Publication of FR2516879B3 publication Critical patent/FR2516879B3/fr
Granted legal-status Critical Current

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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
    • 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
    • B60S1/3479—Means to cover the wiper parts
    • B60S1/3481—Means to cover the wiper parts for mounting head

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

A windscreen-wiper arm for a car comprises a U-shaped case (2) pivoting about a head (1) secured to a shaft undergoing reciprocating rotation. The case houses a spring (5) extending between the arm and one end of a rod (6), the other end of which pivots about an axis (7) on the head. When the arm is raised, movement is limited by the rod (6) bearing against the pivotal axis (3) between the case and the head. When the arm is lowered, movement is limited by the rod (6) bearing against a stop (11) which extends transversely between the sides of the case.

Description

PORTE BALAI D'ESSUIE-GLACE NOTAMMENT POUR VEHICULES AUTOMOBILES
La présente invention concerne un porte balai d'essuie-glace notamment pour véhicules automobiles du type comportant ; une tête fixép sur un arbre d'entrainement et sur laquelle est articulé, dans les limites d'un angle prédéterminé, un carter prolongé par un bras porte balai ; un ressort hélicoidal qui engendre la force nécessaire pour l'application du balai contre le pare brise en se tendant entre l'extrémité du bras solidaire du carter et la tête d'entrainement par l'intermédiaire d'une bielle articulée sur ladite tête autour d'un axe excentré par rapport à l'articulation du carter ; des moyens de fixation de la tête d'entrainement.WIPER BLADE HOLDER, PARTICULARLY FOR MOTOR VEHICLES
The present invention relates to a wiper blade holder in particular for motor vehicles of the type comprising; a head fixed on a drive shaft and on which is articulated, within the limits of a predetermined angle, a casing extended by a brush-carrying arm; a helical spring which generates the force necessary for the application of the brush against the windscreen by stretching between the end of the arm secured to the casing and the drive head by means of a connecting rod articulated on said head around d 'an axis eccentric with respect to the articulation of the casing; means for fixing the drive head.

Les porte-balais connus de ce type et plus particulièrement ceux destinés aux lunettes arrière de véhicules dont l'inclinaison tend vers la perpendicularité, présentent l'inconvénient d'être très vulnérables aux rouleaux équipant les pstiques de lavage automatique qui réussissent à les soulever par la prise constituée par l'extrémité libre des balais prolongeant lesdits porte balais.The known brush holders of this type and more particularly those intended for the rear glasses of vehicles whose inclination tends towards perpendicularity, have the drawback of being very vulnerable to the rollers equipping the automatic washing pstics which succeed in lifting them by the outlet formed by the free end of the brushes extending said brush holder.

Ce soulèvement est égal au débattement angulaire maximum du carter par rapport à la tête d'entrainement. Le retour du balai sur la lunette arrière, après passage du rouleau, s'effectue alors avec une force proportionnelle à la distance parcourue par le balai et à la force de rappel du ressort, et provoque ainsi un choc pouvant, comme cela s'est vérifié, faire éclater la lunette. De plus le bras porte balai subit une déformation permanente.This lifting is equal to the maximum angular movement of the casing relative to the drive head. The return of the brush on the rear window, after passage of the roller, is then carried out with a force proportional to the distance traveled by the brush and to the return force of the spring, and thus causes a shock which can, as has happened checked, burst the telescope. In addition, the brush holder arm undergoes permanent deformation.

Le but de la présente invention est de remédier à ces inconvénients en limitant le débattement angulaire du carter à une valeur suffisante pour permettre toutefois le nettoyage manuel du pare brise. A cet effet l'invention concerne un porte balai d 'essuie- glace notamment pour véhicules automobiles du type comportant ; une tête fixée sur un arbre d'entrainement et sur laquelle est articulé, dans les limites d'un angle prédéterminé, un carter prolongé par un bras porte balai ; un ressort hélicoidal qui engendre la force nécessaire pour l'application du balai contre le pare brise en se tendant entre l'extrémité du bras solidaire du carter et la tête d'entrainement par l'intermédiaire d'une bielle articulée sur ladite tête autour d'un axe excentré par rapport à l'articulation du carter ; des moyens de fixation de la tête d'entrainement caractérisé en ce qu'il comporte des moyens de limi
tation du débattement angulaire du carter par rapport à la tête d'entraînement constitués par @@@ ^^^^^ @@@@@ matérialisée par l'articulation carier@@@ts et sur laquelle, au cours de la course du carter d'où du bras, vient s'immobiliser la bielle pour constituer une seconde butée, en filì de~ couse à un axe solidaire et perpendiculaire à l'axe XX' du carter.The object of the present invention is to remedy these drawbacks by limiting the angular movement of the casing to a value sufficient to allow manual cleaning of the windshield, however. To this end the invention relates to a wiper blade holder in particular for motor vehicles of the type comprising; a head fixed on a drive shaft and on which is articulated, within the limits of a predetermined angle, a casing extended by a brush-carrying arm; a helical spring which generates the force necessary for the application of the brush against the windscreen by stretching between the end of the arm secured to the casing and the drive head by means of a connecting rod articulated on said head around d 'an axis eccentric with respect to the articulation of the casing; means for fixing the drive head, characterized in that it comprises means for limiting
tation of the angular movement of the casing with respect to the drive head constituted by @@@ ^^^^^ @@@@@ materialized by the carier joint @@@ ts and on which, during the course of the casing from where the arm comes to immobilize the connecting rod to form a second stop, in filì of ~ couse to an integral axis and perpendicular to the axis XX 'of the housing.

La description qui va suivre en fonction des dessins annexés fera mieux comprendre comment l'invention peut être réalisée.The following description based on the accompanying drawings will make it easier to understand how the invention can be implemented.

La figure 1 représente en vue de dessous un porte balai comportant des moyens de limitation du débattement angulaire suivant l'invention.Figure 1 shows a bottom view of a brush holder comprising means for limiting the angular displacement according to the invention.

Les figures 2,3 et 4 sont des vues en coupe longitudinale du porte balai suivant la figure 1 respectivement représenté au repos, en cours de fonctionnement et en fin de course.Figures 2,3 and 4 are views in longitudinal section of the brush holder according to Figure 1 respectively shown at rest, during operation and at the end of the race.

Le porte balai d'essuie glace représenté sur les figures comporte une tête d'entrainement 1 fixée sur un arbre d'entrainement (non représenté) sur laquelle s'articule un carter 2 autour d'un axe d'articulation 3, dans les limites d'un angle prédéterminé.The wiper blade holder shown in the figures includes a drive head 1 fixed on a drive shaft (not shown) on which a casing 2 revolves around a hinge pin 3, within the limits at a predetermined angle.

Le carter 2 présente une section en forme de U et se prolonge par un bras porte balai 4 fixé à l'intérieur dudit carter 2 dans une position prédéterminé et comportant à son extrémité une lumière 4a permettant l'accrochage d'un ressort hélicoidal 5 qui engendre la force nécessaire pour l'application du balai contre le parebrise en se tendant entre ladite extrémité 4a du bras 4 et la tête d'entrainement 1 par l'intermédiaire d'une bielle 6 articulée sur ladite tête 1 autour d'un axe 7 excentré par rapport à l'axe d'articulation 3 du carter 2.The housing 2 has a U-shaped section and is extended by a brush-carrying arm 4 fixed inside said housing 2 in a predetermined position and comprising at its end a light 4a allowing the attachment of a helical spring 5 which generates the force necessary for the application of the brush against the windshield by stretching between said end 4a of the arm 4 and the drive head 1 by means of a connecting rod 6 articulated on said head 1 about an axis 7 eccentric with respect to the hinge pin 3 of the casing 2.

Selon le but de l'invention le porte balai comporte des moyens de limitation du débattement angulaire du carter 2 par rapport à la tete d'entrainement 1. Ces moyens sont constitués par une première butée 8 matérialisée par la surface externe d'un palier 9, obtenu de moulage avec la tête 1 et dans lequel pivote l'axe d'articulation 3 du carter 2, laquelle butée 8 constitue un obstacle fixe à une extrémité 6a de la bielle 6 au cours de la course suivant F

Figure img00020001

du carter 2 d'où du bras 4. La bielle 6 ainsi immobilisée constitue à son tour, à se partie opposée de son autre extrémité 6b, une seconde butée 10 destinée à stopper, le déplacement d'un axe 11 solidaire du carter 2 et perpendiculaire à son axe XX', d'où la course dudit carter 2. According to the object of the invention, the brush holder comprises means for limiting the angular movement of the casing 2 relative to the drive head 1. These means consist of a first stop 8 materialized by the external surface of a bearing 9 , obtained by molding with the head 1 and in which pivots the hinge pin 3 of the casing 2, which stop 8 constitutes a fixed obstacle at one end 6a of the connecting rod 6 during the stroke following F
Figure img00020001

of the casing 2 from which of the arm 4. The connecting rod 6 thus immobilized in turn constitutes, opposite its other end 6b, a second stop 10 intended to stop, the movement of an axis 11 integral with the casing 2 and perpendicular to its axis XX ', hence the travel of said housing 2.

Claims (1)

REVENDICATIONCLAIM Porte balai d'essuie-gloce notamment pour véhicules automobiles du type comportant ; une tête (1)fixée sur un arbre d'entrainement et sur laquelle est articulé, dans les limites d'un angle prédéterminé, un carter 2 prolongé par un bras porte-balai (4) ; un ressort hélicoidal (5) qui engendre la force nécessaire pour l'application du balai contre le pare brise en se tendant entre l'extrémité (4a) du bras (4) solidaire du carter (2) et la tête d'entrainement (1) par l'intermédiaire d'une bielle articulée (6) sur ladite tete (1) autour d'un axe excentré (7) par rapport à l'articulation (3) du carter (2) ; des moyens de fixation de la tête d'entrainement (1) caractérisé en ce qu'il comporte des moyens de limitation du débattement angulaire du carter (2) par rapport à la tête d'entrainement (1), constitués par une première butée (8) matérialisée par l'articulation (3) carter#tAete et sur laquelle, au cours de la course du carter (2) d'où du bras (4), vient s'immobiliser la bielle (6) pour constituer une seconde butée (in), en fin de course à un axe (11) solidaire et perpendiculaire à l'axe XX' du carter (2). Wiper blade holder in particular for motor vehicles of the type comprising; a head (1) fixed on a drive shaft and on which is articulated, within the limits of a predetermined angle, a casing 2 extended by a brush-carrying arm (4); a helical spring (5) which generates the force necessary for the application of the brush against the windscreen by stretching between the end (4a) of the arm (4) secured to the casing (2) and the drive head (1 ) by means of an articulated connecting rod (6) on said head (1) about an eccentric axis (7) relative to the articulation (3) of the casing (2); means for fixing the drive head (1) characterized in that it includes means for limiting the angular movement of the casing (2) relative to the drive head (1), constituted by a first stop ( 8) materialized by the articulation (3) casing # tAete and on which, during the course of the casing (2) hence the arm (4), comes to immobilize the connecting rod (6) to constitute a second stop (in), at the end of the travel to an axis (11) integral and perpendicular to the axis XX 'of the casing (2).
FR8122129A 1981-11-26 1981-11-26 Windscreen wiper arm for car - incorporates rod which limits rotational movement between arm and mounting head Granted FR2516879A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8122129A FR2516879A1 (en) 1981-11-26 1981-11-26 Windscreen wiper arm for car - incorporates rod which limits rotational movement between arm and mounting head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8122129A FR2516879A1 (en) 1981-11-26 1981-11-26 Windscreen wiper arm for car - incorporates rod which limits rotational movement between arm and mounting head

Publications (2)

Publication Number Publication Date
FR2516879A1 true FR2516879A1 (en) 1983-05-27
FR2516879B3 FR2516879B3 (en) 1984-09-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435042A (en) * 1993-01-25 1995-07-25 Nippon Wiperblade Co., Ltd. Windshield wiper arm including a link device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435042A (en) * 1993-01-25 1995-07-25 Nippon Wiperblade Co., Ltd. Windshield wiper arm including a link device

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FR2516879B3 (en) 1984-09-07

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