WO1984003866A1 - Spring cover for windshield wiper and windshield wiper provided with said spring cover - Google Patents

Spring cover for windshield wiper and windshield wiper provided with said spring cover Download PDF

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Publication number
WO1984003866A1
WO1984003866A1 PCT/FR1984/000089 FR8400089W WO8403866A1 WO 1984003866 A1 WO1984003866 A1 WO 1984003866A1 FR 8400089 W FR8400089 W FR 8400089W WO 8403866 A1 WO8403866 A1 WO 8403866A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
spring cover
yoke
arm
wiper
Prior art date
Application number
PCT/FR1984/000089
Other languages
French (fr)
Inventor
Regis Grare
Original Assignee
Marchal Equip Auto
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 Marchal Equip Auto filed Critical Marchal Equip Auto
Publication of WO1984003866A1 publication Critical patent/WO1984003866A1/en

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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
    • B60S1/3425—Constructional aspects of the arm
    • B60S1/3431—Link pieces
    • B60S1/3434—Manufacturing details thereof
    • 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
    • B60S1/3465—Means to press blade onto screen with coil springs
    • B60S1/3468—Mountings therefor

Definitions

  • the present invention relates to a spring cover for a wiper blade holder as well as to a brush holder provided with this spring cover.
  • the present invention proposes to remedy these drawbacks and to produce a spring cover for a wiper blade holder which is compact, simple, quick to assemble and ultimately very economical.
  • the object of the invention is therefore, and, as a new industrial product, a spring cover for a wiper, said wiper comprising a head for receiving the drive axis of the wiper, a longitudinal yoke articulated at one end on the head and continuing at its other end by the arm intended to receive the brush, a helical spring being disposed longitudinally in the yoke and fixed by one of its ends to the yoke or the arm and, by its other end, at the head, so as to exert on the broom a restoring force towards the windshield while allowing pivoting of the yoke around the articulation axis which connects it to the head, the yoke having a general U-shaped section whose open face, revealing the spring, is closed by the spring cover, characterized in that it comprises means for being fixed on the spring.
  • the means for fixing to the spring are latching means and, in such an embodiment, the spring cover may advantageously have, on the side of the drive head of the wiper, a slot latching capable of receiving and trapping the non-helical end portion of the spring which is directed towards said head.
  • the spring cover can also be fixed at its other end, arm side, on the spring, but it is preferable, at this level, to fix the spring cover on the yoke or the arm provided that allow, either by the method of attachment, or by the deformability of the spring cover itself, an angular movement of the spring cover relative to the yoke in order to allow it to follow the movements of the spring relative to the yoke.
  • the end of the spring on the arm side is very short; it can therefore be difficult to fix the spring cover on the spring and this is the reason why the spring cover may preferably be fixed by snap-fastening on the clevis or on the arm.
  • the spring cover can then advantageously include latching or hooking means which are fixed on the end of the arm or on the yoke, preferably on either side of the extension of the spring, the deformation of the concealment being allowed thanks to an articulation connecting the end of the spring cover, which is substantially fixed relative to the yoke, and most of said concealment, which is movable with the spring.
  • the articulation can be easily produced inside. desired location by an interruption of said wings, leaving only the core which, thanks to its own possibilities of deformation, allows the spring cover to follow the movements of the spring. It is understood, however, that other more complex embodiments remain possible to achieve an articulation between the fixed part of the spring cover and the movable part of the latter to follow the movements of the spring.
  • the invention also has as its object and the new industrial product that constitutes a wiper fitted with a spring cover as defined above.
  • FIG. 1 shows a partial perspective view of a wiper according to the invention provided with its spring cover
  • - Figure 2 shows a perspective view the spring cover of Figure 1;
  • FIG. 3 shows a bottom view of the spring cover of Figure 2;
  • FIG. 4 shows a longitudinal sectional view of the spring cover of Figures 1 to 3, mounted on the spring and on the arm extending the yoke, the latter being assumed removed.
  • the wiper shown in the drawing comprises a head 1 of usual shape which can be seen fitted on a drive shaft 2 and which is connected, by means of a hinge pin 3, to one end a yoke 4, the other end of which is rigidly attached to the arm of the soot glass 5.
  • the yoke 4 has a U-shaped section open at its lower part (windshield side), said yoke being seen turned over in FIG. 1: two wings 4a extend parallel to each other and are connected by a core (not seen in Figure 1); the two wings 4a extend longitudinally beyond the core, on the side of the head 1, to form extensions receiving the articulation 3, this in order to allow an angular movement of the yoke 4 relative to the head 1 around the articulation axis 3.
  • the yoke 4 Towards the arm 5, the yoke 4 gradually narrows to its end 4b which is crimped onto the arm 5, an extension 5a, provided with a hole 5b penetrates inside screed 4 for a short distance.
  • the helical spring 6, arranged longitudinally in the yoke, has a first filiform end 6a ending in a hook, conventionally hooked in the head 1, and a second much shorter filiform end 6b in the form of a hook penetrating into the hole 5b for hooking the spring.
  • the spring 6 moves angularly in the yoke 4 around a point located at the level of the hanging hole 5b.
  • the spring cover 7 preferably made of molded or injected plastic, has a general U-shaped cross section which decreases progressively, to follow the section of the yoke, in the direction of the end on the arm side 5 so as to be inserted, without friction, in the yoke 4.
  • the core of the U-shaped section of the spring cover 7 has two parts, namely a part of greater length la and a part of shorter length 7b normally making an elbow relative to the part as seen in the drawing.
  • the wings of the U-shaped section of the spring cover are also composed of two parts, namely a part 7c corresponding to the core part 7a and a part 7d corresponding to the core part 7b.
  • the wings are interrupted by a slot 7e extending to the core and materially separating the wing parts 7c and 7d, so that at this location, the spring cover is reduced to the thickness of the core, which thus forms a deformable or flexible hinge allowing angular movement of the longest part 7.a, 7c relative to the shortest part 7b, 7d; the 7th slots having a divergent shape allowing deformation in both directions.
  • the transverse bottom 7f of the spring cover 7 has a central slot 7g, the width of which is slightly less than the diameter of the wire forming the spring 6; the slot 7g opens, in the vicinity of the core 7a, into a transverse slot 7h; the slot 7 g is defined between two internal flanges 7i which project towards the inside of the spring cover.
  • the core 7b In the vicinity of the slots 7e, the core 7b has two legs 7 i in the form of a hook. Finally, in its extreme part, the core part 7b. has a longitudinal slot 7k reinforced by a flange 7l, the conformation being such that this end of the spring cover can decrease in width thanks to the presence of the slot 7k and adapt exactly to the place which is offered to it in the yoke 4 During assembly, it can be seen, in particular with reference to FIG.

Abstract

The spring cover (7) comprises means (7g, 7h) to fix the cover to the spring of the wiper and rear fixing means (7j) to the rod or arm of the wiper; a flexible hinge is formed by the slots (7e) of the wings of the spring cover. It may be set in place by a simple ratchet system. Application to windshield wipers of motor vehicles.

Description

CACHE-RESSORT POUR ESSUIE-GLACE ET ESSUIE-GLACE MUNI DE CE CACHE-RESSORT. SPRING COVER FOR WINDSCREEN WIPER AND WIPER PROVIDED WITH THIS SPRING COVER.
La présente invention a trait à un cache-ressort pour porte-balai d ' essuie-glace ainsi qu' à un porte-balai muni de ce cache-ressort .The present invention relates to a spring cover for a wiper blade holder as well as to a brush holder provided with this spring cover.
Dans le domaine des essuie-glaces de véhicules automobiles , on peut être amené, de façon connue, à incliner l 'axe de rotation du bras d ' essuie-glace par rapport à la normale moyenne de la surface à essuyer, de façon à b énéficier d 'un effet anti-soulèvement s 'opposant au soulèvement du balai d 'essuie-glace par rapport au pare-brise sous l 'effet du vent provoqué par la vitesse . Cependant, dans ces conditions, le ressort logé dans la chape du bras d 'essuieglace devient visible, ce qui, d'une part, est inesthétique et, d 'autre part, expose le ressort aux intempéries et salissures .In the field of wipers for motor vehicles, it may be necessary, in known manner, to incline the axis of rotation of the wiper arm relative to the average normal of the surface to be wiped, so as to b benefit from an anti-lifting effect opposing the lifting of the wiper blade relative to the windshield under the effect of the wind caused by the speed. However, under these conditions, the spring housed in the yoke of the wiper arm becomes visible, which, on the one hand, is unsightly and, on the other hand, exposes the spring to weather and dirt.
Pour éviter ces inconvénients, on a donc déj à prévu de munir la chape du bras d ' essuie-glace d 'un cache- ressort solidaire de la chape . Une telle réalisation est, par exemple, décrite dans le brevet des Etats-Unis d 'Amérique 3 042 955. Du fait que le ressort logé longitudinalement dans la chape possède obligatoirement un certain débattement transversalement par rapport à la direction longitudinale de la chape, la position du cache- ressort doit être déterminée de façon à permettre ce débattement, et le cacheressort se trouve donc maintenu sur la chape dans une position augmentant l 'encombrement transversal de celle-ci avec tous les inconvénients qui en résul tent, tant du point de vue esthétique que du point de vue technique . En outre, des moyens de fixation particuliers doivent être prévus pour fixer le cache-ressort sur la chape, ce qui nécessite une modification de celle-ci , un montage plus long et se traduit en fin de compte par un prix de revient sensiblement accru.To avoid these drawbacks, provision has therefore already been made to provide the yoke of the wiper arm with a spring cover integral with the yoke. Such an embodiment is, for example, described in the patent of United States of America 3,042,955. Because the spring housed longitudinally in the yoke necessarily has a certain movement transversely with respect to the longitudinal direction of the yoke, the position of the spring cover must be determined so as to allow this clearance, and the spring cover is therefore maintained on the yoke in a position increasing the transverse size thereof with all the drawbacks which result therefrom, both from the point of aesthetic view only from a technical point of view. In addition, special fixing means must be provided to fix the spring cover on the yoke, which requires a modification thereof, a longer assembly and ultimately results in a substantially increased cost price.
La présente invention se propose de remédier à ces inconvénients et de réaliser un cache-ressort pour porte-balai d 'essuie-glace qui soit peu encombrant, simple, de montage rapide et, finalement, très économique.The present invention proposes to remedy these drawbacks and to produce a spring cover for a wiper blade holder which is compact, simple, quick to assemble and ultimately very economical.
L 'invention a donc pour obj et, à titre de produit industriel nouveau, un cache-ressort pour essuie-glace, ledit essuie-glace comportant une tête pour recevoir l 'axe d'entraînement de l 'essuie-glace, une chape longitudinale articulée à une extrémité sur la tête et se poursuivant à son autre extrémité par le bras destiné à recevoir le balai, un ressort hélicoïdal étant disposé longitudinalement dans la chape et fixé par une de ses extrémités à la chape ou au bras et, par son autre extrémité, à la tête, de façon à exercer sur le balai un effort de rappel en direction du pare-brise tout en permettant un pivotement de la chape autour de l ' axe d' articulation qui la relie à la tête, la chape présentant une section générale en forme de U dont la face ouverte, laissant apparaître le ressort, est obturée par le cache-ressort, caractérisé par le fait qu'il comporte des moyens pour être fixé sur le ressort.The object of the invention is therefore, and, as a new industrial product, a spring cover for a wiper, said wiper comprising a head for receiving the drive axis of the wiper, a longitudinal yoke articulated at one end on the head and continuing at its other end by the arm intended to receive the brush, a helical spring being disposed longitudinally in the yoke and fixed by one of its ends to the yoke or the arm and, by its other end, at the head, so as to exert on the broom a restoring force towards the windshield while allowing pivoting of the yoke around the articulation axis which connects it to the head, the yoke having a general U-shaped section whose open face, revealing the spring, is closed by the spring cover, characterized in that it comprises means for being fixed on the spring.
De préférence, les moyens de fixation sur le ressort sont des moyens d 'encliquetage et, dans une telle forme de réalisation, le cache-ressort peut avantageusement présenter, du côté de la tête d'entraînement de l 'essuie-glace, une fente d 'encliquetage susceptible de recevoir et d'emprisonner la partie terminale non hélicoïdale du ressort qui se dirige vers ladite tête . Conformément à l 'invention, le cache-ressort peut également être fixé à son autre extrémité, côté bras, sur lé ressort, mais il est préférable, à ce niveau, de fixer le cache-ressort sur la chape ou le bras à condition alors de permettre, soit par le mode de fixation, soit par la déformabilité du cache-ressort lui-même, un débattement angulaire du cache-ressort par rapport à la chape afin de lui permettre de suivre les mouvements du ressort par rapport à la chape. En effet, généralement, l'extrémité du ressort côté bras est très courte ; il peut donc être difficile de fixer le cache-ressort sur le ressort et c 'est la raison pour laquelle le cache-ressort peut, de préférence , être fixé par encliquetage sur la chape ou sur le bras . Dans ce cas , le cacheressort peut alors avantageusement comporter des moyens d ' encliquetage ou d ' accrochage venant se fixer sur l ' extrémité du bras ou sur la chape , de préférence, de part et d ' autre du prolongement du ressort, la déformation du cacheressort étant permise grâce à une articulation reliant l 'extrémité du cache-ressort, qui est sensiblement fixe par rapport à la chape, et la plus grande partie dudit cacheressort, qui est mobile avec le ressort .Preferably, the means for fixing to the spring are latching means and, in such an embodiment, the spring cover may advantageously have, on the side of the drive head of the wiper, a slot latching capable of receiving and trapping the non-helical end portion of the spring which is directed towards said head. According to the invention, the spring cover can also be fixed at its other end, arm side, on the spring, but it is preferable, at this level, to fix the spring cover on the yoke or the arm provided that allow, either by the method of attachment, or by the deformability of the spring cover itself, an angular movement of the spring cover relative to the yoke in order to allow it to follow the movements of the spring relative to the yoke. Indeed, generally, the end of the spring on the arm side is very short; it can therefore be difficult to fix the spring cover on the spring and this is the reason why the spring cover may preferably be fixed by snap-fastening on the clevis or on the arm. In this case, the spring cover can then advantageously include latching or hooking means which are fixed on the end of the arm or on the yoke, preferably on either side of the extension of the spring, the deformation of the concealment being allowed thanks to an articulation connecting the end of the spring cover, which is substantially fixed relative to the yoke, and most of said concealment, which is movable with the spring.
Dans le cas préféré où le cache-ressort présente une section transversale sensiblement en forme de U comportant une âme et deux ailes latérales destinées , de préférence, à pénétrer à l 'intérieur de la chape, l 'articulation peut être aisément réalisée à l ' emplacement voulu par une interruption desdites ailes , en ne laissant subsister que l ' âme qui, grâce à ses possibilités propres de déformation, permet au cache- ressort de suivre les mouvements du ressort. On comprend cependant que d 'autres formes de réalisation plus complexes res tent possibles pour réaliser une articulation entre la partie fixe du cache-ressort et la partie mobile de celui-ci des tinée à suivre les mouvements du ressort .In the preferred case where the spring cover has a substantially U-shaped cross section comprising a core and two lateral wings intended, preferably, to penetrate inside the yoke, the articulation can be easily produced inside. desired location by an interruption of said wings, leaving only the core which, thanks to its own possibilities of deformation, allows the spring cover to follow the movements of the spring. It is understood, however, that other more complex embodiments remain possible to achieve an articulation between the fixed part of the spring cover and the movable part of the latter to follow the movements of the spring.
L 'invention a également pour obj et le produit industriel nouveau que cons titue un essuie-glace muni d 'un cache-ressort tel que ci-dessus défini .The invention also has as its object and the new industrial product that constitutes a wiper fitted with a spring cover as defined above.
L 'invention sera maintenant décrite plus en détail à propos d 'une forme de réalisation particulière, faite à titre d 'exemple non limitatif et se référant au dessin annexé.The invention will now be described in more detail with regard to a particular embodiment, made by way of nonlimiting example and referring to the attached drawing.
Sur ce dessin :On this drawing :
- la figure 1 représente une vue partielle en perpective d'un essuie-glace selon l'invention muni de son cache-ressort ; - la figure 2 représente une vue en perspective du cache-ressort de la figure 1 ;- Figure 1 shows a partial perspective view of a wiper according to the invention provided with its spring cover; - Figure 2 shows a perspective view the spring cover of Figure 1;
- la figure 3 représente une vue de dessous du cache-ressort de la figure 2 ;- Figure 3 shows a bottom view of the spring cover of Figure 2;
- la figure 4 représente une vue en coupe longitudinale du cache- ressort des figures 1 à 3, monté sur le ressort et sur le bras prolongeant la chape, cette dernière étant supposée enlevée.- Figure 4 shows a longitudinal sectional view of the spring cover of Figures 1 to 3, mounted on the spring and on the arm extending the yoke, the latter being assumed removed.
L'essuie-glace représenté sur le dessin comporte une tête 1 de forme usuelle que l 'on voit emmanchée sur un axe d'entraînement 2 et qui est reliée, par l 'intermédiaire d'un axe d'articulation 3, à une extrémité d'une chape 4 dont l 'autre extrémité est rigidement solidaire du bras d' es suie- glace 5.The wiper shown in the drawing comprises a head 1 of usual shape which can be seen fitted on a drive shaft 2 and which is connected, by means of a hinge pin 3, to one end a yoke 4, the other end of which is rigidly attached to the arm of the soot glass 5.
De façon usuelle, la chape 4 présente une section en U ouverte à sa partie inférieure (côté pare-brise) , ladite chape étant vue retournée sur la figure 1 : deux ailes 4a s ' étendent parallèlement l 'une à l 'autre et sont reliées par une âme (non vue sur la figure 1) ; les deux ailes 4a s 'étendent longitudinalement au-delà de l 'âme, du côté de la tête 1 , pour former des prolongements recevant l ' articulation 3, ceci afin de permettre un débattement angulaire de la chape 4 par rapport à la tête 1 autour de l' axe d'articulation 3. Vers le bras 5, la chape 4 se rétrécit progressivement jusqu 'à son extrémité 4b qui est sertie sur le bras 5 dont un prolongement 5a, muni d'un trou 5b pénètre à l 'intérieur de la chape 4 sur une courte distance.Usually, the yoke 4 has a U-shaped section open at its lower part (windshield side), said yoke being seen turned over in FIG. 1: two wings 4a extend parallel to each other and are connected by a core (not seen in Figure 1); the two wings 4a extend longitudinally beyond the core, on the side of the head 1, to form extensions receiving the articulation 3, this in order to allow an angular movement of the yoke 4 relative to the head 1 around the articulation axis 3. Towards the arm 5, the yoke 4 gradually narrows to its end 4b which is crimped onto the arm 5, an extension 5a, provided with a hole 5b penetrates inside screed 4 for a short distance.
Le ressort hélicoïdal 6, disposé longitudinalement dans la chape, possède une première extrémité filiforme 6a se terminant en crochet, accroché de façon classique dans la tête 1, et une seconde extrémité filiforme beaucoup plus courte 6b en forme de crochet pénétrant dans le trou 5b pour l 'accrochage du ressort. Lors du mouvement de pivotement de la chape 4 par rapport à la tête 1 autour de l 'axe d'articulation 3, on comprend que le ressort 6 se déplace angulairement dans la chape 4 autour d'un point situé au niveau du trou d 'accrochage 5b .The helical spring 6, arranged longitudinally in the yoke, has a first filiform end 6a ending in a hook, conventionally hooked in the head 1, and a second much shorter filiform end 6b in the form of a hook penetrating into the hole 5b for hooking the spring. During the pivoting movement of the yoke 4 relative to the head 1 around the hinge pin 3, it is understood that the spring 6 moves angularly in the yoke 4 around a point located at the level of the hanging hole 5b.
Le cache- ressort 7, réalisé de préférence en matière plastique moulée ou injectée, présente une section transversale générale en U qui décroît progressivement, pour suivre la section de la chape, en direction de l 'extrémité côté bras 5 afin d 'être insérée, sans frottement, dans la chape 4. L 'âme de la section en U du cache- ressort 7, comporte deux parties, à savoir une partie de plus grande longueur la et une partie de plus petite longueur 7b faisant normalement un coude par rapport à la partie la comme on le voit sur le dessin . Les ailes de la section en U du cache-ressort sont également composées de deux parties, à savoir une partie 7ç correspondant à la partie d 'âme 7a et une partie 7d correspondant à la partie d'âme 7b . Les ailes sont interrompues par une fente 7e s 'étendant jusqu'à l 'âme et séparant matériellement les parties d 'ailes 7c et 7d, de sorte qu' à cet emplacement, le cache-ressort est réduit à l ' épaisseur de l 'âme, qui forme ainsi une charnière déformable ou souple permettant un débattement angulaire de la partie la plus longue 7.a, 7c par rapport à la partie la plus courte 7b, 7d ; les fentes 7e présentant une forme divergente autorisant une déformation dans les deux sens . Le fond transversal 7f du cache-ressort 7 présente une fente médiane 7g, dont la largeur est légèrement inférieure au diamètre du fil formant le ressort 6 ; la fente 7g débouche, au voisinage de l 'âme 7a, dans une fente transversale 7h ; la fente 7 g est définie entre deux rebords internes 7i qui font saillie vers l 'intérieur du cacheressort. Il est ainsi possible de fixer par encliquetage le cache sur l 'extrémité 6a du ressort en faisant pénétrer cette extrémité 6a, comme on le voit sur la figure 1 , dans la fente 7g, puis en l 'immobilisant au niveau de la fente transversale 7h dont la largeur est cependant légèrement supérieure au diamètre du fil formant le ressort, de sorte que celui-ci peut ne pas être centré dans la partie médiane du fond 7f du cache-ressort .The spring cover 7, preferably made of molded or injected plastic, has a general U-shaped cross section which decreases progressively, to follow the section of the yoke, in the direction of the end on the arm side 5 so as to be inserted, without friction, in the yoke 4. The core of the U-shaped section of the spring cover 7 has two parts, namely a part of greater length la and a part of shorter length 7b normally making an elbow relative to the part as seen in the drawing. The wings of the U-shaped section of the spring cover are also composed of two parts, namely a part 7c corresponding to the core part 7a and a part 7d corresponding to the core part 7b. The wings are interrupted by a slot 7e extending to the core and materially separating the wing parts 7c and 7d, so that at this location, the spring cover is reduced to the thickness of the core, which thus forms a deformable or flexible hinge allowing angular movement of the longest part 7.a, 7c relative to the shortest part 7b, 7d; the 7th slots having a divergent shape allowing deformation in both directions. The transverse bottom 7f of the spring cover 7 has a central slot 7g, the width of which is slightly less than the diameter of the wire forming the spring 6; the slot 7g opens, in the vicinity of the core 7a, into a transverse slot 7h; the slot 7 g is defined between two internal flanges 7i which project towards the inside of the spring cover. It is thus possible to snap the cover on the end 6a of the spring by making this end 6a penetrate, as seen in FIG. 1, into the slot 7g, then by immobilizing it at the level of the transverse slot 7h whose width is however slightly greater than the diameter of the wire forming the spring, so that it may not be centered in the middle part of the bottom 7f of the spring cover.
Au voisinage des fentes 7e, l 'âme 7b présente deux pattes 7 i en forme de crochet. Enfin, dans sa partie extrême, la partie d 'âme 7b. présente tme fente longitudinale 7k renforcée par un rebord 7l, la conformation étant telle que cette extrémité du cache-ressort peut diminuer de largeur grâce à la présence de la fente 7k et s ' adapter exactement à la place qui lui est offerte dans la chape 4. Au montage, on voit, notamment en se référant à la figure 4, que les pattes en forme de crochet 7i , qui se déforment dans le plan longitudinal, viennent se fixer sur l'extrémité 5a du bras , de part et d ' autre du crochet de ressort 6a, formant ainsi un accrochage par encliquetage, l 'extrémité du rebord 7l empêchant pour sa part un déplacement axial et un décrochage en coopérart avec l 'extérieur de l'extrémité 6b. en ferme de crochet . En outre, en jouait sur l' élasticité et les possibilités de défbrmaticn grâce à la fente 7k, la partie 7b, 7d du cache-ressort peut ainsi être pratiquement solidaire de la chape 4. Pratiquement dans le même mouvement, on vient encliqueter le cache-ressort sur l 'extrémité de ressort 6a, de sorte que le cache-ressort se trouve fixé dans la position définitive représentée sur la figure 1.In the vicinity of the slots 7e, the core 7b has two legs 7 i in the form of a hook. Finally, in its extreme part, the core part 7b. has a longitudinal slot 7k reinforced by a flange 7l, the conformation being such that this end of the spring cover can decrease in width thanks to the presence of the slot 7k and adapt exactly to the place which is offered to it in the yoke 4 During assembly, it can be seen, in particular with reference to FIG. 4, that the hook-shaped legs 7i, which are deformed in the longitudinal plane, come to be fixed on the end 5a of the arm, on either side of the spring hook 6a, thus forming a snap hooking, the end of the rim 7l for its part preventing an axial displacement and a stall in coopart with the outside of the end 6b. in hook farm. In addition, by playing on the elasticity and the possibilities of defbrmaticn thanks to the slot 7k, the part 7b, 7d of the spring cover can thus be practically secured to the yoke 4. In practically the same movement, the cover is snapped -spring on the spring end 6a, so that the spring cover is fixed in the final position shown in Figure 1.
Lorsque la chape 4 pivote par rapport à la tête 1 autour de l ' axe 3, le ressort 6 se déplace angulairement par rapport à la chape et toute la partie du cache-ressort 7a, 7c qui entoure le ressort 6 se déplace avec celui-ci autour de l ' articulation autorisée par les fentes 7e, tandis que la partie de cache-ressort 7b., 7d, reste solidaire de la la chape et immobile par rapport à celle-ci .When the yoke 4 pivots with respect to the head 1 about the axis 3, the spring 6 moves angularly with respect to the yoke and the whole part of the spring cover 7a, 7c which surrounds the spring 6 moves with it. ci around the articulation authorized by the slots 7e, while the part of spring cover 7b., 7d, remains integral with the yoke and immobile with respect thereto.
Il va de soi que l 'invention peut faire l 'objet de nombreuses variantes tant dans les matériaux utilisés que dans les formes présentées . It goes without saying that the invention can be the subject of numerous variants both in the materials used and in the forms presented.

Claims

REVENDICATIONS 1 - Cache-ressort pour essuie-glace, ledit essuieglace comportant une tête (1) pour recevoir l 'axe d 'entraînement de l 'essuie-glace, une chape longitudinale (4) articulée à une extrémité sur la tête (1) et se poursuivant à son autre extrémité par le bras (5) destiné à recevoir le balai, un ressort hélicoïdal (6) étant disposé longitudinalement dans la chape (4) et fixé par une de ses extrémités (6b.) à la chape ou au bras, et par son autre extrémité, à la tête, de façon à exercer sur le balai un effort de rappel en direction du pare-brise, tout en permettant un pivotement de la chape (4) autour de l 'axe d 'articulation (3) qui la relie à la tête, la chape présentant une section générale en forme de U, dont la face ouverte laissant apparaître le ressort (6) est obturée par le cache-ressort (7) , caractérisé par le fait qu'il comporte des moyens (7g, 7h) pour être fixé sur le ressort. CLAIMS 1 - Spring cover for wiper, said wiper comprising a head (1) for receiving the drive shaft of the wiper, a longitudinal yoke (4) articulated at one end on the head (1) and continuing at its other end by the arm (5) intended to receive the brush, a helical spring (6) being arranged longitudinally in the yoke (4) and fixed by one of its ends (6b.) to the yoke or to the arm, and by its other end, at the head, so as to exert on the broom a restoring force towards the windshield, while allowing pivoting of the yoke (4) around the articulation axis ( 3) which connects it to the head, the yoke having a general U-shaped section, the open face of which reveals the spring (6) is closed by the spring cover (7), characterized in that it comprises means (7g, 7h) to be fixed on the spring.
2 - Cache- ressort selon la revendication 1, caractérisé par le fait que les moyens (7g, 7h) de fixation sur le ressort sont des moyens d 'encliquetage .2 - Spring cover according to claim 1, characterized in that the means (7g, 7h) for fixing on the spring are latching means.
3 - Cache-ressort selon la revendication 2, caractérisé par le fait que les moyens d 'encliquetage comprennent , au moins une fente (7g) pour un encliquetage sur une extrémité allongée (6a) du ressort (6) . 4 - Cache-ressort selon la revendication 3, caractérisé par le fait que les moyens d 'encliquetage comportent une fente médiane (7g) ouverte sur l ' extérieur et une fente transversale (7h) débouchant dans la fente médiane .3 - Spring cover according to claim 2, characterized in that the latching means comprise, at least one slot (7g) for latching on an elongated end (6a) of the spring (6). 4 - Spring cover according to claim 3, characterized in that the latching means comprise a middle slot (7g) open to the outside and a transverse slot (7h) opening into the middle slot.
5 - Cache- ressort selon l 'une des revendications 1 à 4, caractérisé par le fait qu 'il est fixé sur le ressort (6) vers l 'extrémité (6a) du ressort, qui est proche de la tête (1) , et qu'il est fixé, du côté bras, sur la chape (4) et/ou le bras (5) , des moyens ( 7e) étant prévus pour permettre au cache-ressort (7) de suivre le débattement du ressort (6) . 6 - Cache-ressort selon la revendication 5, caractérisé par le fait que lesdits moyens (7e) permettant au cache-ressort de suivre le débattement du ressort (6) sont réalisés sous forme d'une charnière souple. 7 - Cache-ressort selon l'une des revendications5 - Spring cover according to one of claims 1 to 4, characterized in that it is fixed on the spring (6) towards the end (6a) of the spring, which is close to the head (1), and that it is fixed, on the arm side, to the yoke (4) and / or the arm (5), means (7e) being provided to allow the spring cover (7) to follow the movement of the spring (6 ). 6 - Spring cover according to claim 5, characterized in that said means (7e) allowing the spring cover to follow the movement of the spring (6) are made in the form of a flexible hinge. 7 - Spring cover according to one of claims
5 et 6, caractérisé par le fait qu'à son extrémité côté bras, il possède des moyens d'encliquetage (7j) sur un prolongement (5a) du bras (5) .5 and 6, characterized in that at its end on the arm side, it has latching means (7j) on an extension (5a) of the arm (5).
8 - Cache-ressort selon l'une des revendications 1 à 7, caractérisé par le fait qu'il comporte deux parties8 - Spring cover according to one of claims 1 to 7, characterized in that it comprises two parts
(7a-7c, 7b-7d) faisant un angle, la partie antérieure (7a7c) étant disposée le long du ressort.(7a-7c, 7b-7d) forming an angle, the front part (7a7c) being arranged along the spring.
9 - Cache-ressort selon l'une des revendications 1 à 8, caractérisé par le fait qu'il comporte une section sensiblement en forme de U se rétrécissant selon la forme de la chape et comportant une âme déformable (7.a-7b,), deux ailes séparées par une fente (7e) en deux parties d'ailes (7c, 7d), une face antérieure (7f) munie de moyens d'encliquetage (7g, 7h) sur une extrémité (6a) du ressort, et deux pattes recourbées en forme de crochet (7i) pour un encliquetage, de part et d?autre de l'autre extrémité (6b) du ressort, sur un prolongement du bras (5a) de l'essuie-glace.9 - Spring cover according to one of claims 1 to 8, characterized in that it has a substantially U-shaped section narrowing according to the shape of the yoke and comprising a deformable core (7.a-7b, ), two wings separated by a slot (7e) into two parts of wings (7c, 7d), an anterior face (7f) provided with latching means (7g, 7h) on one end (6a) of the spring, and two hooked curved tabs (7i) for a snap, on either side of the other end (6b) of the spring, on an extension of the arm (5a) of the wiper.
10 - Essuie-glace, caractérisé par le fait qu'il comporte un cache-ressort selon l'une des revendications 1 à 9. 10 - Wiper, characterized in that it comprises a spring cover according to one of claims 1 to 9.
PCT/FR1984/000089 1983-04-05 1984-04-03 Spring cover for windshield wiper and windshield wiper provided with said spring cover WO1984003866A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8305527A FR2543896B1 (en) 1983-04-05 1983-04-05 SPRING COVER FOR WINDSCREEN WIPER AND WIPER PROVIDED WITH THIS SPRING COVER

Publications (1)

Publication Number Publication Date
WO1984003866A1 true WO1984003866A1 (en) 1984-10-11

Family

ID=9287526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1984/000089 WO1984003866A1 (en) 1983-04-05 1984-04-03 Spring cover for windshield wiper and windshield wiper provided with said spring cover

Country Status (5)

Country Link
JP (1) JPS60500950A (en)
DE (1) DE3490116T1 (en)
ES (1) ES286970Y (en)
FR (1) FR2543896B1 (en)
WO (1) WO1984003866A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0721870A1 (en) * 1995-01-16 1996-07-17 Paul Journee S.A. Wind screen wiper for vehicle
US5564158A (en) * 1992-04-04 1996-10-15 Itt Automotive Europe Gmbh Wiper arm for windshield wipers of automotive vehicles
US5673456A (en) * 1994-12-13 1997-10-07 Valeo Systemes D'essuyage Z.A. De L'agiot Windscreen wiper device for a motor vehicle provided with a covering shroud

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9606148D0 (en) * 1996-03-23 1996-05-29 Trico Ltd Improvement relating to windscreen wipers heads
EP1810898A1 (en) * 2006-01-18 2007-07-25 Federal-Mogul S.A. A windscreen wiper arm
JP6387796B2 (en) * 2014-11-05 2018-09-12 株式会社デンソー Vehicle wiper
JP6417875B2 (en) * 2014-11-13 2018-11-07 株式会社デンソー Vehicle wiper

Citations (3)

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Publication number Priority date Publication date Assignee Title
FR1094670A (en) * 1955-05-23
US2804639A (en) * 1952-11-22 1957-09-03 Trico Products Corp Windshield cleaner wiper arm
DE2607365A1 (en) * 1976-02-24 1977-09-01 Bosch Gmbh Robert Removable cover for rear of wiper arm - has clip on plastic cover moulded in U-shape and fitted by ratchet slots

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1094670A (en) * 1955-05-23
US2804639A (en) * 1952-11-22 1957-09-03 Trico Products Corp Windshield cleaner wiper arm
DE2607365A1 (en) * 1976-02-24 1977-09-01 Bosch Gmbh Robert Removable cover for rear of wiper arm - has clip on plastic cover moulded in U-shape and fitted by ratchet slots

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564158A (en) * 1992-04-04 1996-10-15 Itt Automotive Europe Gmbh Wiper arm for windshield wipers of automotive vehicles
US5673456A (en) * 1994-12-13 1997-10-07 Valeo Systemes D'essuyage Z.A. De L'agiot Windscreen wiper device for a motor vehicle provided with a covering shroud
EP0721870A1 (en) * 1995-01-16 1996-07-17 Paul Journee S.A. Wind screen wiper for vehicle
FR2729350A1 (en) * 1995-01-16 1996-07-19 Journee Paul Sa PERFECTED WIPER OF MOTOR VEHICLE

Also Published As

Publication number Publication date
FR2543896A1 (en) 1984-10-12
ES286970U (en) 1985-11-16
FR2543896B1 (en) 1985-07-26
ES286970Y (en) 1986-06-01
DE3490116T1 (en) 1985-05-02
JPS60500950A (en) 1985-06-27

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