EP0319443B1 - Venetian blind - Google Patents
Venetian blind Download PDFInfo
- Publication number
- EP0319443B1 EP0319443B1 EP88480085A EP88480085A EP0319443B1 EP 0319443 B1 EP0319443 B1 EP 0319443B1 EP 88480085 A EP88480085 A EP 88480085A EP 88480085 A EP88480085 A EP 88480085A EP 0319443 B1 EP0319443 B1 EP 0319443B1
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- EP
- European Patent Office
- Prior art keywords
- blind
- venetian blind
- profile
- blind according
- braking
- 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.)
- Expired - Lifetime
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
- E06B9/307—Details of tilting bars and their operation
Definitions
- the present invention applies in the field of interior or exterior architecture and decoration by providing a new type of Venetian blind with specific advantages.
- Venetian blinds generally consist of a metal upper case containing a more or less sophisticated mechanism, intended to transmit to the horizontal slats coupled between them, on the one hand the adjustment of their inclination, and on the other hand the vertical movements of translation allowing the awning to go up and down at any desired height.
- the means used to adjust the inclination of the horizontal slats must be fitted with a braking device capable of maintaining the position taken as a function of the lighting desired by the user.
- a tilting mechanism housing of a Venetian blind has a first surface which bears against the front wall of the heald and a longitudinal groove on the surface opposite to the rear wall of the heald forming a spring plate which is housed under the edge of the rear wall which is directed downwards and which fixes the housing inside the arm.
- the tilt mechanism has a spur gear that rests on a control axle for common rotation.
- the spur gear has a smooth peripheral part, along the length of a certain angle, without gear wheels, and a part which has the usual gear teeth on the rest of the gear.
- An elongated shaft with a worm gear returns to the top of the housing through an opening in the bottom wall of the heddle for continuous engagement with the spur gear.
- the principle of the invention is therefore to be able to obtain a progressive, proportional adjustment, without jerks or hard spots, but ensuring the maintenance of the position of the inclination of the blind slats.
- the supporting profile used being of the type usually used in the lower part of traditional Venetian blinds, it was necessary to compensate for the appearance of an arrow, due to the thinness of this profile, by the possible presence of an internal reinforcement. , or by the presence of an intermediate support constituting a simple bearing intended to receive a hollow axis integral with two end pieces which can fit into each of the half lengths of the profile.
- This variant also requires a longitudinal machining of the wooden bar to conceal the pulleys and drawstrings for the blind.
- the venetian blind is of the type containing a mechanism intended to transmit to the horizontal slats coupled between them, on the one hand the adjustment of their inclination and on the other hand the vertical movements of translation allowing the ascent and descent of the blind at all the desired heights characterized in that it comprises support bearings provided with a braking device, associated with end caps fitting at the ends of a support profile acting as an upper casing. Said end pieces are machined to constitute an orientation pulley, as well as an axis provided with a groove used for positioning a braking pin, associated with a spring and a braking screw which acts at the center of said groove. Said conical pin is placed in a tapped hole opposite said groove of the support bearings.
- the end piece is constituted by a part of revolution whose central part, forming a grooved pulley, is intended to retain a cord, which acts on the orientation of the slats of the blind.
- the pulley is secured to a flat whose role is to allow it to fit into the upper hollow section of the blind, a stop serving to bear against the support bearing; the pivot axis ensuring perfect rotation in said support bearing.
- the braking pin acts in the center of the groove to maintain the entire blind in the position controlled by the action of the user on the cord coupled to the pulley.
- the support bearing consists of a part of revolution comprising a base extended by a cylindrical part in which a flat has been machined intended to serve as a counter-stop for the stop.
- the support bearing has a hole in which the axis, consisting of two spans, rotates; and another hole in which the braking device is placed, said hole being placed in the axis and at the end of the cylindrical part.
- the vertical translation of the blind is ensured by the drilling of the end pieces axially and the drilling of the bearings laterally, which allows the passage of the drawstrings.
- the thin profile has internal reinforcement to compensate for the appearance of an arrow.
- an intermediate support has been designed constituting a bearing which is intended to receive a hollow axis, integral with two end pieces which can fit into each of the two profile lengths; this double end-piece being made up of two flat parts, located on either side of the axis, the assembly being traversed axially by the hole intended for the passage of the blind lifting cord.
- the conventional bar used as a traditional support replaces the profile; it is, for this purpose, modified to be able to constitute bearings allowing the orientation of said bar and of the blades which are attached to it, the braking device being integrated by means of the tapped hole opening into the axis of the diameter hole smaller, which is secant in the cylinder constituting the rotation bearing of the upper bar.
- the bar has a longitudinal machining to hide the pulleys and drawstrings of the blind.
- the various elements, end caps and support bearings are made of a self-lubricating material of the "NYLON” or “TEFLON” type (registered trademarks), either by molding or by machining.
- Figure 1 is an elevational view of a nozzle intended to be fitted into a flat profile, it is a part of revolution essentially consisting of a central part (1) forming a grooved pulley intended to receive a cord to act on the orientation of the blind slats.
- this pulley (1) is integral with a flat (2) whose role is to fit into the upper hollow profile of the blind which supports, thanks to “ladders” in wire, all the blades superimposed on the blind.
- a stop (3) is used to bear, without play against the support bearing shown in Figure 2.
- the pivot axis provides by its bearing surfaces (4) and (5) perfect rotation in the support bearing.
- a braking pin associated with a spring and an adjustment screw as in Figure 5, will act in the center of the groove (6) to maintain the entire blind in the position controlled by the action of the user on the cord coupled to the pulley (1).
- the endpiece is also axially pierced by a hole (7) to allow passage of the blind lifting cord.
- Figure 2 shows a side view of the support bearing associated with the nozzle described in Figure 1, these two elements being shown on the right side, the elements placed to the left of the carrier profile being similar in all respects.
- This support bearing also being a part of revolution, it consists of a base (8) extended by a cylindrical part (9), on which a flat part (10) has been machined, intended to serve as a stop against the stop. (3) of Figure 1, as well as a hole (11) in which will rotate the axis consisting of the two bearings (4) and (5), and another hole (12) placed in the axis and at the end of said cylindrical part (9). In the tapped and shouldered hole (12), the braking system described in FIG. 5 is placed.
- FIG. 3 represents a top view of a double central end piece intended to fit between two sections of support profile in order to eliminate the excessive deflection at the center of the great lengths.
- This double end piece consists of two flat parts (13) and (14) located on either side of an axis (15), the entire part being traversed right through and axially by a hole (16 ) intended for the passage of the blind lifting cord.
- Figure 4 is a side view of the central support bearing in which is placed the double end fitting described above in order to constitute an additional support point.
- a stud fixed in a wall or a partition takes place in the blind hole (17) machined in the base (18) and extending into the cylindrical body (19) in which was also machined a bearing " U "(20).
- All of these elements, described in FIG. 1 in FIG. 4, can advantageously be obtained by molding or machining in self-lubricating materials such as NYLON or TEFLON (registered trademarks).
- Figure 5 shows a side view of a support bearing which can be made of wood, which can correspond to the style of decoration of certain interiors and attenuate the overly modern appearance of Venetian blinds while retaining the specific advantages of these blinds.
- a tapped hole (21) was made opening into the axis of a second hole (22) of smaller diameter, said hole (22) being secant in the cylinder (23 ) constituting the rotation bearing of the upper bar (24) of the blind (shown in FIG. 6).
- the operation of the braking system is obtained by means of an adjustment screw (25) pushing on a spring (26), the latter acting on a braking pin (27).
- FIG. 6 represents a view in longitudinal section of a bar which may be made of wood, to match the part described in FIG. 5.
- This bar (24) is provided with a grooved pulley (28).
- the groove (29) used to receive the brake pin (27) while the pulley (30) allows easy operation of the lifting cord passing through the longitudinal notch (31).
Abstract
Description
La présente invention s'applique dans le domaine de l'architecture d'intérieur ou d'extérieur et de la décoration en apportant un nouveau type de store vénitien doté d'avantages spécifiques.The present invention applies in the field of interior or exterior architecture and decoration by providing a new type of Venetian blind with specific advantages.
Actuellement, les stores vénitiens sont généralement constitués d'un boîtier supérieur métallique contenant un mécanisme plus ou moins sophistiqué, destiné à transmettre aux lames horizontales couplées entre elles, d'une part le règlage de leur inclinaison, et d'autre part les mouvements verticaux de translation permettant la montée et la descente du store à toutes les hauteurs voulues.Currently, Venetian blinds generally consist of a metal upper case containing a more or less sophisticated mechanism, intended to transmit to the horizontal slats coupled between them, on the one hand the adjustment of their inclination, and on the other hand the vertical movements of translation allowing the awning to go up and down at any desired height.
Les moyens utilisés pour le réglage de l'inclinaison des lames horizontales doivent être dotés d'un dispositif de freinage capable de maintenir la position prise en fonction de l'éclairement désiré par l'utilisateur.The means used to adjust the inclination of the horizontal slats must be fitted with a braking device capable of maintaining the position taken as a function of the lighting desired by the user.
L'état de la technique peut être défini par le brevet suivant: US-A-4.676.292: Système de bascule pour garniture de vitre à lames. Un logement de mécanisme de bascule d'un store vénitien comporte une première surface qui s'appuie contre la paroi avant de la lisse et une rainure longitudinale sur la surface opposée à la paroi arrière de la lisse formant une plaque de ressort qui se loge sous le rebord de la paroi arrière qui est dirigée vers le bas et qui fixe le logement à l'intérieur de la lisse. Le mécanisme de bascule comporte un engrenage droit qui repose sur un essieu de contrôle pour une rotation commune. L'engrenage droit comporte une partie périphérique lisse, pendant la longueur d'un certain angle, sans roues d'engrenage, et une partie qui comporte les dents habituelles d'engrenage sur le reste de l'engrenage. Un arbre allongé avec un engrenage à vis sans fin rentre vers le haut du logement à travers une ouverture dans la paroi inférieure de la lisse pour une prise continue avec l'engrenage droit.The state of the art can be defined by the following patent: US-A-4,676,292: Rocking system for trim of window glass with blades. A tilting mechanism housing of a Venetian blind has a first surface which bears against the front wall of the heald and a longitudinal groove on the surface opposite to the rear wall of the heald forming a spring plate which is housed under the edge of the rear wall which is directed downwards and which fixes the housing inside the arm. The tilt mechanism has a spur gear that rests on a control axle for common rotation. The spur gear has a smooth peripheral part, along the length of a certain angle, without gear wheels, and a part which has the usual gear teeth on the rest of the gear. An elongated shaft with a worm gear returns to the top of the housing through an opening in the bottom wall of the heddle for continuous engagement with the spur gear.
Bien que de nombreux brevets existent sur les stores vénitiens, on observe que le principe du dispositif de commande de l'inclinaison des lames est généralement le même, à savoir celui d'une démultiplication obtenue par vis sans fin, car ce système simple a l'avantage, du fait de son grand rapport de démultiplication, d'assurer en même temps le blocage dans la position affichée.Although many patents exist on Venetian blinds, we observes that the principle of the device for controlling the inclination of the blades is generally the same, namely that of a reduction obtained by worm, since this simple system has the advantage, because of its large reduction ratio, at the same time ensure locking in the displayed position.
L'inconvénient de ce dispositif est qu'il nécessite la présence d'un mécanisme qu'il est nécessaire de dissimuler dans un boîtier dont l'esthétique sera toujours sujette à certaines critiques.The disadvantage of this device is that it requires the presence of a mechanism which it is necessary to conceal in a case whose aesthetics will always be subject to certain criticisms.
Pour remédier à cet inconvénient, il a été conçu un nouveau store vénitien sans mécanisme apparent, permettant la suppression du caisson supérieur, mais offrant malgré tout toutes les possibilités du store vénitien classique.To remedy this drawback, a new Venetian blind was designed without any apparent mechanism, allowing the removal of the upper box, but still offering all the possibilities of the classic Venetian blind.
Le principe de l'invention est donc de pouvoir obtenir un réglage progressif, proportionnel, sans à coups ni points durs, mais assurant le maintien de la position de l'inclinaison des lames du store.The principle of the invention is therefore to be able to obtain a progressive, proportional adjustment, without jerks or hard spots, but ensuring the maintenance of the position of the inclination of the blind slats.
Ce résultat est obtenu grâce à la conception de paliers supports munis d'un dispositif de freinage associés à des embouts s'emboîtant aux extrémités d'un profilé porteur faisant office de boîtier supérieur, lesdits embouts sont usinés pour constituer une poulie d'orientation ainsi qu'un axe muni d'une gorge servant au positionnement d'un moyen de freinage.This result is obtained thanks to the design of support bearings provided with a braking device associated with end caps which fit together at the ends of a support profile acting as upper casing, said end caps are machined to constitute an orientation pulley as well. an axle provided with a groove used for positioning a braking means.
Ces embouts étant percés axialement et les paliers latéralement pour permettre le passage des cordonnets de tirage assurant la translation verticale du store.These end pieces being drilled axially and the bearings laterally to allow the passage of pulling cords ensuring the vertical translation of the blind.
Le profilé porteur utilisé étant du type de ceux habituellement employés en partie basse des stores vénitiens traditionnels, il était nécessaire de compenser l'apparition d'une flèche, due à la faible épaisseur de ce profilé, par la présence éventuelle d'un renfort interne, ou par la présence d'un support intermédiaire constituant un simple palier destiné à recevoir un axe creux solidaire de deux embouts pouvant s'emboîter dans chacune des demi longueurs du profilé.The supporting profile used being of the type usually used in the lower part of traditional Venetian blinds, it was necessary to compensate for the appearance of an arrow, due to the thinness of this profile, by the possible presence of an internal reinforcement. , or by the presence of an intermediate support constituting a simple bearing intended to receive a hollow axis integral with two end pieces which can fit into each of the half lengths of the profile.
Dans le but de pouvoir utiliser à la place du profilé porteur une simple barre pouvant être en bois, toujours dans un souci d'adaptation esthétique avec certains intérieurs, il a été conçu une variante de l'invention dans laquelle les supports traditionnels sont repris et modifiés pour pouvoir constituer de véritables paliers permettant l'orientation de la barre et des lames qui lui sont attachées.In order to be able to use a simple bar that can be made of wood in place of the support profile, always with a view to aesthetic adaptation with certain interiors, a variant of the invention has been designed in which the traditional supports are used and modified to be able to constitute real bearings allowing the orientation of the bar and the blades which are attached to it.
Cette variante nécessite également un usinage longitudinal de la barre en bois pour dissimuler les poulies et les cordons de tirage de store.This variant also requires a longitudinal machining of the wooden bar to conceal the pulleys and drawstrings for the blind.
Afin de pouvoir utiliser un profilé porteur ou une barre dont le diamètre serait inférieur à la largeur des lames du store, il existe une bague d'adaptation permettant l'enroulement correct des "échelles" servant à supporter les lames du store.In order to be able to use a support profile or a bar whose diameter would be less than the width of the blind blades, there is an adapter ring allowing the correct winding of the "ladders" used to support the blind blades.
Le store vénitien, selon l'invention, est du type contenant un mécanisme destiné à transmettre aux lames horizontales couplées entre elles, d'une part le réglage de leur inclinaison et d'autre part les mouvements verticaux de translation permettant la montée et la descente du store à toutes les hauteurs voulues caractérisé en ce qu'il comporte des paliers supports munis d'un dispositif de freinage, associés à des embouts s'emboîtant aux extrémités d'un profilé porteur faisant office de boîtier supérieur. Lesdits embouts sont usinés pour constituer une poulie d'orientation, ainsi qu'un axe muni d'une gorge servant au positionnement d'un pion de freinage, associé à un ressort et à une vis de freinage qui agit au centre de ladite gorge. Ledit pion cônique est disposé dans un trou taraudé en regard de ladite gorge des paliers-supports.The venetian blind, according to the invention, is of the type containing a mechanism intended to transmit to the horizontal slats coupled between them, on the one hand the adjustment of their inclination and on the other hand the vertical movements of translation allowing the ascent and descent of the blind at all the desired heights characterized in that it comprises support bearings provided with a braking device, associated with end caps fitting at the ends of a support profile acting as an upper casing. Said end pieces are machined to constitute an orientation pulley, as well as an axis provided with a groove used for positioning a braking pin, associated with a spring and a braking screw which acts at the center of said groove. Said conical pin is placed in a tapped hole opposite said groove of the support bearings.
L'embout est constitué par une pièce de révolution dont la partie centrale, formant poulie à gorge, est destinée à retenir un cordon, lequel agit sur l'orientation des lames du store. La poulie est solidaire d'un méplat dont le rôle est de permettre son emboîtement dans le profilé creux supérieur du store, une butée servant à prendre appui contre le palier-support; l'axe de pivotement assurant une rotation parfaite dans ledit palier-support. Le pion de freinage agit au centre de la gorge pour maintenir l'ensemble du store dans la position commandée par l'action de l'utilisateur sur le cordon couplé à la poulie.The end piece is constituted by a part of revolution whose central part, forming a grooved pulley, is intended to retain a cord, which acts on the orientation of the slats of the blind. The pulley is secured to a flat whose role is to allow it to fit into the upper hollow section of the blind, a stop serving to bear against the support bearing; the pivot axis ensuring perfect rotation in said support bearing. The braking pin acts in the center of the groove to maintain the entire blind in the position controlled by the action of the user on the cord coupled to the pulley.
Le palier-support est constitué par une pièce de révolution comportant une embase prolongée par une partie cylindrique dans laquelle a été usiné un méplat destiné à servir de contre-butée à la butée.The support bearing consists of a part of revolution comprising a base extended by a cylindrical part in which a flat has been machined intended to serve as a counter-stop for the stop.
Le palier-support comporte un trou dans lequel l'axe, constitué de deux portées, tourne; et un autre trou dans lequel est placé le dispositif de freinage, cedit trou étant placé dans l'axe et en bout de la partie cylindrique.The support bearing has a hole in which the axis, consisting of two spans, rotates; and another hole in which the braking device is placed, said hole being placed in the axis and at the end of the cylindrical part.
La translation verticale du store est assurée par le perçage des embouts axialement et le perçage des paliers latéralement, ce qui permet le passage des cordonnets de tirage.The vertical translation of the blind is ensured by the drilling of the end pieces axially and the drilling of the bearings laterally, which allows the passage of the drawstrings.
Le profilé de faible épaisseur possède un renfort interne afin de compenser l'apparition d'une flèche.The thin profile has internal reinforcement to compensate for the appearance of an arrow.
Pour compenser l'apparition d'une flèche, il a été conçu un support intermédiaire constituant un palier lequel est destiné à recevoir un axe creux, solidaire de deux embouts pouvant s'emboîter dans chacune des deux longueurs de profilé; ce double embout étant constitué des deux parties méplates, situées de part et d'autre de l'axe, l'ensemble étant traversé axialement par le trou destiné au passage du cordon de levage de store.To compensate for the appearance of an arrow, an intermediate support has been designed constituting a bearing which is intended to receive a hollow axis, integral with two end pieces which can fit into each of the two profile lengths; this double end-piece being made up of two flat parts, located on either side of the axis, the assembly being traversed axially by the hole intended for the passage of the blind lifting cord.
Dans une variante, la barre classique utilisée comme support traditionnel remplace le profilé; elle est, à cet effet, modifiée pour pouvoir constituer des paliers permettant l'orientation de ladite barre et des lames qui lui sont attachées, le dispositif de freinage étant intégré par l'intermédiaire du trou taraudé débouchant dans l'axe du trou de diamètre plus petit, lequel est sécant dans le cylindre constituant le palier de rotation de la barre supérieure.In a variant, the conventional bar used as a traditional support replaces the profile; it is, for this purpose, modified to be able to constitute bearings allowing the orientation of said bar and of the blades which are attached to it, the braking device being integrated by means of the tapped hole opening into the axis of the diameter hole smaller, which is secant in the cylinder constituting the rotation bearing of the upper bar.
La barre comporte un usinage longitudinal afin de dissimuler les poulies et les cordons de tirage du store.The bar has a longitudinal machining to hide the pulleys and drawstrings of the blind.
L'adaptation du profilé ou de la barre dans le cas où le diamètre serait inférieure à la largeur des lames de store est assuré par une bague d'adaptation permettant l'enroulement correct des "échelles" qui servent à supporter les lames du store.The adaptation of the profile or the bar in the case where the diameter is less than the width of the blind slats is ensured by an adapter ring allowing the correct winding of the "ladders" which are used to support the blind slats.
Les différents éléments, embouts et paliers supports, sont réalisés dans un matériau auto-lubrifiant du type "NYLON" ou "TEFLON" (marques déposées), soit par moulage, soit par usinage.The various elements, end caps and support bearings are made of a self-lubricating material of the "NYLON" or "TEFLON" type (registered trademarks), either by molding or by machining.
Afin d'expliciter l'invention, et de faire apparaître d'autres caractéristiques nouvelles, il est donné à titre d'exemple non limitatif un mode de réalisation de l'invention illustré par les dessins ci-annexés:
- Figure 1: Vue en élévation d'un embout pour profilé plat
- Figure 2: Vue de profil d'un palier-support associé à l'embout ci-dessus.
- Figure 3: Vue de dessus d'un double embout central
- Figure 4: Vue de profil du palier-support central
- Figure 5: Vue de profil d'un palier-support "bois".
- Figure 6: Vue en coupe longitudinale d'une barre de style bois.
- Figure 1: Elevation view of a tip for flat profile
- Figure 2: Profile view of a support bearing associated with the above nozzle.
- Figure 3: Top view of a double central tip
- Figure 4: Profile view of the central support bearing
- Figure 5: Profile view of a "wood" support bearing.
- Figure 6: View in longitudinal section of a wooden style bar.
La figure 1 est une vue en élévation d'un embout destiné à venir s'emboîter dans un profilé plat, il s'agit d'une pièce de révolution constituée essentiellement d'une partie centrale (1) formant poulie à gorge destinée à recevoir un cordon permettant d'agir sur l'orientation des lames du store.Figure 1 is an elevational view of a nozzle intended to be fitted into a flat profile, it is a part of revolution essentially consisting of a central part (1) forming a grooved pulley intended to receive a cord to act on the orientation of the blind slats.
En effet, cette poulie (1) est solidaire d'un méplat (2) dont le rôle est de venir s'emboîter dans le profilé creux supérieur du store qui supporte, grâce à des "échelles" en fil, l'ensemble des lames superposées du store.Indeed, this pulley (1) is integral with a flat (2) whose role is to fit into the upper hollow profile of the blind which supports, thanks to "ladders" in wire, all the blades superimposed on the blind.
Une butée (3) sert à prendre appui, sans jeu contre le palier-support représenté à la figure 2. L'axe de pivotement assure par ses portées (4) et (5) une rotation parfaite dans le palier-support.A stop (3) is used to bear, without play against the support bearing shown in Figure 2. The pivot axis provides by its bearing surfaces (4) and (5) perfect rotation in the support bearing.
Un pion de freinage, associé à un ressort et à une vis de réglage comme à la figure 5, va agir au centre de la gorge (6) pour maintenir l'ensemble du store dans la position commandée par l'action de l'utilisateur sur le cordon couplé à la poulie (1).A braking pin, associated with a spring and an adjustment screw as in Figure 5, will act in the center of the groove (6) to maintain the entire blind in the position controlled by the action of the user on the cord coupled to the pulley (1).
L'embout est par ailleurs percé axialement par un trou (7) pour permettre le passage du cordon de levage du store.The endpiece is also axially pierced by a hole (7) to allow passage of the blind lifting cord.
La figure 2 montre en vue de profil le palier support associé à l'embout décrit à la figure 1, ces deux éléments étant représentés du côté droit, les éléments placés à gauche du profilé porteur étant en tous points semblables. Ce palier-support étant également une pièce de révolution, il est constitué d'une embase (8) prolongée par une partie cylindrique (9), sur laquelle on a usiné un méplat (10), destiné à servir de contre butée à la butée (3) de la figure 1, ainsi qu'un trou (11) dans lequel va tourner l'axe constitué des deux portées (4) et (5), et un autre trou (12) placé dans l'axe et en bout de ladite partie cylindrique (9). Dans le trou (12) taraudé et épaulé, est placé le système de freinage décrit à la figure 5.Figure 2 shows a side view of the support bearing associated with the nozzle described in Figure 1, these two elements being shown on the right side, the elements placed to the left of the carrier profile being similar in all respects. This support bearing also being a part of revolution, it consists of a base (8) extended by a cylindrical part (9), on which a flat part (10) has been machined, intended to serve as a stop against the stop. (3) of Figure 1, as well as a hole (11) in which will rotate the axis consisting of the two bearings (4) and (5), and another hole (12) placed in the axis and at the end of said cylindrical part (9). In the tapped and shouldered hole (12), the braking system described in FIG. 5 is placed.
La figure 3 représente en vue de dessus un double embout central destiné à s'emboîter entre deux tronçons de profilé porteur afin de supprimer la flèche excessive au centre des grandes longueurs. Ce double embout est constitué de deux parties méplates (13) et (14) situées de part et d'autre d'un axe (15), l'ensemble de la pièce étant traversé de part en part et axialement par un trou (16) destiné au passage du cordon de levage du store.FIG. 3 represents a top view of a double central end piece intended to fit between two sections of support profile in order to eliminate the excessive deflection at the center of the great lengths. This double end piece consists of two flat parts (13) and (14) located on either side of an axis (15), the entire part being traversed right through and axially by a hole (16 ) intended for the passage of the blind lifting cord.
La figure 4 est une vue de profil du palier support central dans lequel est placé le double embout précédemment décrit afin de constituer un point d'appui supplémentaire.Figure 4 is a side view of the central support bearing in which is placed the double end fitting described above in order to constitute an additional support point.
Pour cela, un piton fixé dans un mur ou une cloison vient prendre place dans le trou borgne (17) usiné dans l'embase (18) et se prolongeant dans le corps cylindrique (19) dans lequel a été également usiné un palier en "U" (20).For this, a stud fixed in a wall or a partition takes place in the blind hole (17) machined in the base (18) and extending into the cylindrical body (19) in which was also machined a bearing " U "(20).
Tous ces éléments, décrits de la figure 1 à la figure 4, peuvent être avantageusement obtenus par moulage ou usinage dans des matériaux autolubrifiant tels que le NYLON ou le TEFLON (marques déposées).All of these elements, described in FIG. 1 in FIG. 4, can advantageously be obtained by molding or machining in self-lubricating materials such as NYLON or TEFLON (registered trademarks).
La figure 5 montre en vue de profil un palier support pouvant être en bois, ce qui peut correspondre au style de décoration de certains intérieurs et atténuer l'aspect trop moderne des stores vénitiens tout en conservant les avantages spécifiques de ces stores.Figure 5 shows a side view of a support bearing which can be made of wood, which can correspond to the style of decoration of certain interiors and attenuate the overly modern appearance of Venetian blinds while retaining the specific advantages of these blinds.
Dans le but d'incorporer le système de freinage nécessaire au bon fonctionnement de l'orientation des lames du store, il a été pratiqué un trou taraudé (21) débouchant dans l'axe d'un second trou (22) de diamètre plus petit, ledit trou (22) étant sécant dans le cylindre (23) constituant le palier de rotation de la barre supérieure (24) du store (représentée à la figure 6).In order to incorporate the braking system necessary for the correct functioning of the orientation of the blind blades, a tapped hole (21) was made opening into the axis of a second hole (22) of smaller diameter, said hole (22) being secant in the cylinder (23 ) constituting the rotation bearing of the upper bar (24) of the blind (shown in FIG. 6).
Le fonctionnement du système de freinage est obtenu grâce à une vis de réglage (25) poussant sur un ressort (26), celui-ci agissant sur un pion de freinage (27).The operation of the braking system is obtained by means of an adjustment screw (25) pushing on a spring (26), the latter acting on a braking pin (27).
Ce dispositif est le même que celui utilisé dans la figure 2This device is the same as that used in Figure 2
La figure 6 représente une vue en coupe longitudinale d'une barre pouvant être en bois, pour s'accorder avec la pièce décrite à la figure 5. Cette barre (24) est dotée d'une poulie à gorge (28). La gorge (29) servant à recevoir le pion de freinage (27) alors que la poulie (30) permet la manoeuvre aisée du cordon de levage passant par l'entaille longitudinale (31).FIG. 6 represents a view in longitudinal section of a bar which may be made of wood, to match the part described in FIG. 5. This bar (24) is provided with a grooved pulley (28). The groove (29) used to receive the brake pin (27) while the pulley (30) allows easy operation of the lifting cord passing through the longitudinal notch (31).
Claims (13)
characterized in that
it comprises supporting bearings (8 and 9, 10, 11, 12) provided with a braking means and associated with adjoining pieces (1, 2, 3, 4, 5, 6, 7) which fit into the ends of a carrier profile serving as an upper casing, said adjoining pieces (1 and 2, 3, 4, 5, 6, 7) are machined to form a castor (1), as well as a shaft provided with a groove (6) serving for the positioning of a braking-pin (27), associated to a spring (26) and a braking screw acting upon the centre of said groove (6), said conical pin (27) being disposed in a threaded bore (12, 21) opposite of said groove a (6) of the supporting bearings.
characterized in that
the adjoining piece is made up of a rotary component whose central portion (1), forming a pulley with a groove, serves to accommodate a cord acting upon the blind lamellas for pivoting the same.
characterized in that
the pulley (1) is firmly connected to a flattened portion (2) which is adapted to be fitted into the upper hollow profile of said blind, an abutment (3) serving to rest against the supporting bearing, whilst the pivot axis ensures by the portions (4) and (5) a perfect rotation in said supporting bearing.
characterized in that
the braking pin (25) acts upon the centre of the groove (6) in order to hold the entire blind in the position demanded as a result of the user operating the cord coupled to the pulley (1).
characterized in that
the supporting bearing is made up of a rotary component having a support (8) extended by a cylindrical portion (9) in which a flattened portion (10) has been machined to serve as a counter-abutment for the abutment (3).
characterized in that
the supporting bearing comprises a bore (11) in which the shaft formed of two surfaces (4) and (5) rotates, and another bore (12) in which the braking means is disposed, this bore (12) being provided in the shaft and at the end of the cylindrical portion (9).
characterized in that
the vertical displacement of said blind is ensured through the piercing (7) of the adjoining pieces in axial direction and the piercing of the bearings in lateral direction, permitting passing of the pull cords therethrough.
characterized in that
the thin profile possesses an internal reinforcement to compensate for a sag.
characterized in that
in order to compensate for a sag an intermediate support has been provided, constituting a bearing to accommodate a hollow shaft, firmly connected to two adjoining pieces which may be fitted into each of the two profile lengths, this pair of adjoining pieces being formed of two flattened portions (13) and (14) disposed on either side of the shaft (15), and the unit being traversed in axial direction by the bore (16) permitting the passage of the cord for pulling the blind up.
characterized in that
in a variant the classical bar used as conventional support replaces the profile and in that it has been modified to this end in order to be able to constitute bearings permitting the pivoting of said bar and of the lamellas attached to it, the braking means being integrated by means of the bore with the internal threads (21) terminating in the axis of the bore (22) of a smaller diameter, which is a secant in the cylinder (23) constituting the rotary bearing of the upper bar (24).
characterized in that
the bar has been machined into a longitudinal shape in order to conceal the castors and the pull cords of the blind.
characterized in that
adaptation of the profile or of the bar in case that the diameter is smaller than the width of the blind lamellas is ensured by an adjustment ring permitting correct rolling up of the "ladders" serving to support the blind lamellas.
the different elements, adjoining pieces and supporting bearings are made from a self-lubricating material of the type "NYLON" or "TEFLON" (registered trademarks) either by moulding or by machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88480085T ATE63362T1 (en) | 1987-12-04 | 1988-12-02 | LOUVRE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8717113A FR2624195B1 (en) | 1987-12-04 | 1987-12-04 | VENETIAN BLIND |
| FR8717113 | 1987-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0319443A1 EP0319443A1 (en) | 1989-06-07 |
| EP0319443B1 true EP0319443B1 (en) | 1991-05-08 |
Family
ID=9357656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88480085A Expired - Lifetime EP0319443B1 (en) | 1987-12-04 | 1988-12-02 | Venetian blind |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0319443B1 (en) |
| AT (1) | ATE63362T1 (en) |
| DE (1) | DE3862748D1 (en) |
| ES (1) | ES2023008B3 (en) |
| FR (1) | FR2624195B1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE377360B (en) * | 1972-06-28 | 1975-06-30 | Perma System Ab | |
| US4676292A (en) * | 1985-04-11 | 1987-06-30 | Beatrice Companies, Inc. | Tilter apparatus for a slatted window covering |
-
1987
- 1987-12-04 FR FR8717113A patent/FR2624195B1/en not_active Expired - Lifetime
-
1988
- 1988-12-02 DE DE8888480085T patent/DE3862748D1/en not_active Expired - Lifetime
- 1988-12-02 ES ES88480085T patent/ES2023008B3/en not_active Expired - Lifetime
- 1988-12-02 EP EP88480085A patent/EP0319443B1/en not_active Expired - Lifetime
- 1988-12-02 AT AT88480085T patent/ATE63362T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3862748D1 (en) | 1991-06-13 |
| EP0319443A1 (en) | 1989-06-07 |
| ATE63362T1 (en) | 1991-05-15 |
| FR2624195A1 (en) | 1989-06-09 |
| FR2624195B1 (en) | 1990-05-04 |
| ES2023008B3 (en) | 1991-12-16 |
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