EP2441913A1 - Device for blocking a load bar of a screen and closing or sun-protection installation provided with such a blocking device - Google Patents
Device for blocking a load bar of a screen and closing or sun-protection installation provided with such a blocking device Download PDFInfo
- Publication number
- EP2441913A1 EP2441913A1 EP11184962A EP11184962A EP2441913A1 EP 2441913 A1 EP2441913 A1 EP 2441913A1 EP 11184962 A EP11184962 A EP 11184962A EP 11184962 A EP11184962 A EP 11184962A EP 2441913 A1 EP2441913 A1 EP 2441913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- retractable stop
- screen
- load bar
- locking device
- tilting mechanism
- 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.)
- Withdrawn
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Classifications
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B2009/801—Locking arrangements
- E06B2009/804—Locking arrangements acting directly on the shutter
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B2009/801—Locking arrangements
- E06B2009/805—Locking arrangements located on or in the guides
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
- E06B2009/885—Braking mechanism activated by the bottom bar
Definitions
- the invention relates to the field of closure screens and / or sun protection, equipped with a load bar, such as blinds or venetian outdoor or rolling shutters.
- the invention relates more particularly to the devices for blocking the load bar of these screens.
- Such devices make it possible to stretch the fabric so that it does not slap, for example, in the presence of wind, or to limit the opening of the apron, for example, to avoid an attempted intrusion.
- a first solution is to have a pivoting locking means at each end of the load bar, capable of cooperating with a surface of a stop fixed on a portion of the frame of the screen.
- a mechanism alternately tilts the locking means between a position where it cooperates with the fixed stop and a position where it does not cooperate with the fixed stop.
- the patent EP-B-0 305 081 describes a crank positioned at the end of a load bar and pivoting about a main axis thereof.
- the moving end of the crank enters a guide path of a fixed housing.
- the movable end is directed towards a stop surface.
- the movable end then cooperates with the abutment surface, so as to block the opening of the screen.
- a second vertical reciprocating motion is required.
- a rotational locking means is placed in the extension of a load bar. With a tilting mechanism, the locking means rotates to alternately reach a locking position and an unlocking position. In the locking position, a surface of the locking means cooperates with a fixed abutment surface. Conversely, in unlocking position, this surface is no longer positioned vis-à-vis the fixed abutment surface.
- the tilting mechanism is It is also activated by a vertical movement back and forth near the end of the screen.
- This first solution therefore incorporates a movable locking element at the end of the load bar.
- this element can move while moving the load bar and thus generate a noise nuisance.
- the integration of this blocking element at the end of the load bar can be difficult or even unsightly.
- This solution imposes the use of a load bar equipped with the complex blocking element, which makes the installation specific and increases, consequently, the number of references to be managed.
- a second solution is to use a latch whose strike is activated by a manual action of the user or by an electrical system independent of the movement of the screen.
- the lock can not be used automatically.
- the installation is complex and expensive, because it requires the installation of a specific electrical system activating the lock strike.
- a third solution consists in placing a retractable stopper in particular in slides guiding the screen.
- the load bar is then equipped with a single end at each end. This tip acts on a mechanism associated with the retractable stop for activating or deactivating the stop.
- a return means keeps the retractable stop in the active position. The mechanism is actuated by a movement back and forth of the load bar at the bottom end of the screen.
- the invention proposes a device for locking and unlocking the load bar reciprocating the previous systems.
- the invention relates to a device for blocking a load bar of a screen comprising a retractable stop, a tip attached to one end of the load bar and capable of cooperating with the retractable stop and a locking mechanism.
- tilt associated with the retractable stop allowing, in a first case, to move the retractable stop from a folded position, where it is not likely to cooperate with the tip, to an extended position, where it is likely to cooperate with the tip and, in a second case, to move the retractable stop from the deployed position to the folded position.
- the tilting mechanism is actuated by a displacement of the load bar.
- the locking device is activated when the tilting mechanism has moved the retractable stop into the extended position.
- the locking device is deactivated when the tilting mechanism has moved the retractable stop to the folded position.
- the tilting mechanism also makes it possible to keep the retractable stop in its folded position when the screen is deployed, when it moves from an open or semi-open position to a closed position where the screen completely obscures the opening associated.
- This retention of the retractable stop in the folded position avoids any contact between the retractable stop and the tip extending the load bar during the passage thereof at the retractable stop, before the tip is in contact with the failover mechanism, when deploying the screen.
- the displacement of the load bar at the retractable abutment is thus fluid, continuous, without saccades and without noise nuisance.
- the tilting mechanism can be actuated by the load bar directly or by the nozzle mounted in the extension of the load bar.
- the tip can be simple in design, easily adaptable to different types of screens.
- the tilting mechanism After actuation of the tilting mechanism for disabling the locking device, the tilting mechanism preferably moves the retractable stop into the folded position before the endpiece comes into contact with an element of the locking device as it rises. Consequently, no element of the tilting mechanism hinders the stroke of the mouthpiece when opening the screen.
- the displacement of the load bar at the retractable abutment is thus fluid, continuous, without saccades and without noise nuisance.
- the device can be housed inside one of the side slides guiding the screen. The device is then hidden and protected.
- the retractable abutment cooperates with an elastic means for adapting its deployed position.
- the retractable stop can adapt to the different load bar dimensions or compensate for the operating clearance.
- the resilient means positions the retractable stop so that it can always cooperate with the tip.
- the retractable stop In the folded position, the retractable stop is preferably immobilized relative to the fixed structure flanking the screen.
- the immobilization consists in limiting the movement of the retractable stop so that it can not interfere with the endpiece when the load bar moves. The displacement of the load bar is therefore not disturbed.
- a simple solution for making the retractable stop is to use a pivoting plate about an axis perpendicular to the plane formed by the screen, once deployed.
- the plate can cover and protect part of the mechanism when folded.
- the tilting mechanism may comprise a movable activation plate between two stable positions, namely a first stable position where the retractable stop is folded and a second stable position where the retractable stop is deployed.
- the tip of the load bar interacts with this activation plate, including support, to move it from one stable position to another.
- the invention also relates to a closure or sun protection system comprising a screen equipped with a load bar moving between two slides and equipped with a tip at each of its ends characterized in that each tip forms, with a sub assembly comprising a retractable stop, a locking device.
- the figure 1 represents an installation according to the invention comprising a screen 1 composed of a roll-up fabric 3 hooked to a winding tube not shown at its upper end and a load bar 2 fixed to the lower end of the fabric.
- a tip 4a, 4b extends each end of the load bar.
- Each endpiece cooperates with a lateral slide 5a, 5b whose horizontal section forms a "U", open towards the screen.
- Each slide 5a, 5b thus makes it possible to guide the vertical displacement of the load bar 2 and therefore of the screen 1.
- a locking device according to the invention comprises the endpiece 4a, 4b and a latch subassembly 100a, 100b .
- Each lock subassembly 100a, 100b is housed inside one of the two lateral slides 5a, 5b, while the corresponding end piece 4a, 4b is partially housed inside this slide.
- the lock subassemblies 100a and 100b are identical, as are the end pieces 4a and 4b and the slides 5a and 5b.
- the faces of the objects visible in the figure 2 are the front faces, facing the screen, while the faces visible at the figure 3 are the back faces.
- the Figures 2 to 5 represent a latch subassembly 100 of a blocking device. It may be the subassembly 100a or the subassembly 100b shown in FIG. figure 1 .
- This subassembly 100 comprises a retractable stop 110 and a tilting mechanism 120.
- the tilting mechanism 120 comprises a housing 160, a driver 130, a slider 140 and a spring 150, of helical type.
- the housing 160 allows the positioning of the retractable stop 110 relative to a slide 5a or 5b.
- the housing 160 is fixed on the bottom of the slide 5a or 5b, for example by means of a screw not shown, passing through a hole 173 of the housing.
- the reference 5 designates, generically, a slide which can be the slide 5a or the slide 5b.
- the retractable stop 110 comprises two coaxial shafts 111a and 111b, of the same diameter, arranged on either side of a tab 112. These two shafts together define an axis of rotation X 111 .
- a plate 113 extends the lug 112 and ends with a lower edge 114.
- a yoke 116 is fixed on the inner face 115 of the plate 113 facing the housing 160 in the mounted configuration of the retractable stop 110 on the housing 160.
- the yoke 116 supports a shaft 117 whose axis of revolution X 117 is parallel to the axis of rotation X 111 and remote from a non-zero distance d 117 thereof according to a projection of these axes in a plane perpendicular to the plate 113.
- the retractable abutment 110 is mounted on the housing 160 by housing each shaft 111a, 111b respectively in a corresponding cradle 161a, 161b of the housing 160. These cradles 161a and 161b are in an arc and together define an axis pivot X 161 .
- the establishment of the retractable stop 110 is achieved by means of mounting grooves 162a, 162b provided on the housing 160.
- the rotation of the retractable stop 110 is limited, in one direction, by the internal face 115 of the plate 113 which bears against a front face 163 of the housing 160. In the other direction, its rotation is limited by a face of 118 end of the tab 112 which abuts against a face 165 of the housing 160 which is inclined relative to the front face 163.
- the retractable stop 110 is in the folded position when the inner face 115 of the plate 113 comes substantially in support against the front face 163 of the housing 160.
- the retractable stop 110 is in the extended position when the end face 118 of the lug 112 approaches the face 165 of the housing.
- the housing 160 further comprises a first slot 166 for receiving the shaft 117 when the retractable stop 110 is in the folded position.
- Z 160 is a longitudinal axis of the housing 160.
- the Z axis 160 is vertical in installed configuration of the latch subassembly 100 in a slider 5a or 5b.
- a tilting mechanism 120 with several elements.
- This mechanism comprises a sliding subassembly 125 formed by the driver 130 and the slider 140.
- the assembly of these two parts 130 and 140 is obtained by means of assembly means 131 and 141, such as, for example, linking means by clipping.
- the driver 130 is, preferably, rigid material, for example sintered steel, while the slider is, preferably, flexible material, such as a plastic material.
- Z 125 is a longitudinal axis of the sliding subassembly 125. In mounted configuration of the sliding subassembly 125 on the housing 160, the Z axes 125 and Z 160 are parallel.
- the sliding subassembly 125 comprises several sections S1, S2 and S3 distributed along the axis Z 125 and different widths I1, I2, I3, these widths being measured perpendicular to the axis Z 125 and parallel to the front face 163 of the housing 160.
- Each section S1, S2 or S3 is housed in a corresponding groove R1, R2 and R3 of the housing.
- the width I1, I2 or I3 of each section S1, S2 or S3 is slightly smaller than the width 1, 2, 3 of the corresponding groove R1, R2 or R3.
- the sliding subassembly 125 can move in translation along these grooves, parallel to the axes Z 125 and Z 160 .
- the guide of the subassembly 125 by the housing 160 is vertical.
- the housing 160 is provided with a second slot 167 for connecting a rear portion 135 of the driver 130 to an activation plate 132 extending perpendicularly to the front face 163 of the housing, in the direction of a tip 4a or 4b engaged in the slide 5a or 5b in which the latch subassembly 100 is installed.
- the rear part of the driver 130 is that which carries the assembly means 131 and which is located in the extension of the slide 140, along the axis Z 125 .
- the activation plate 132 is horizontal and the front face 163 is vertical and perpendicular to the plane of the screen 1 once it is deployed.
- the tilting mechanism 120 is actuated by a support of a nozzle 4a or 4b on the upper face 133 of the activation plate 132.
- the displacement of the sliding subassembly 125 is limited in a first direction, downwards, by the contact between a lower oblique surface 134 of the driver and an oblique surface 168 bordering the R3 groove of the housing down.
- the sliding subassembly 125 is stopped by the contact between an upper surface 149 of the slider with a surface 169 delimiting the groove R1 upwards. .
- the latch subassembly 100 also includes a spring 150 for pushing by default the sliding subassembly 125 in the second direction described above. In this case, the slide is pushed up.
- the spring 150 is supported, on one side, on a surface 170 of the housing and, on the other side, on a surface 142 of the slide 140.
- the sliding subassembly 125 can assume a first stable position corresponding to a configuration where it abuts, by its surface 149, against the surface 169 of the housing, under the action of the spring 150.
- the retractable stop 110 is folded and the upper face 133 of the driver 100 is positioned at a first distance Z R from the base of the housing 160.
- the sliding subassembly 125 can assume a second stable position for which the retractable stopper 110 is deployed and the upper face 133 of the driver is positioned at a second distance Z D from the base of the housing 160, as shown in FIG. figure 5 .
- the distance Z D is less than the distance Z R.
- This second stable position is obtained thanks to the cooperation of the end 143a of a flexible tab 143 of the slide 140 with a housing 171 has a guide path 171 formed through the housing 160. Indeed, the displacement of the sub sliding assembly 125, pushed by the spring 150, is stopped when the end 143a of the flexible tab 143 is received in the housing 171a.
- the retractable stop 110 can take the positions mentioned above: an extended position and a folded position. To switch from one position to another, the retractable stop pivots about its axis of rotation X 111 by an action of the slide 140 on the shaft 117.
- the slide 140 forms a "guide path" 144 allowing to move the shaft 117 in different positions relative to the fixed housing 160.
- the guide path 144 is formed in a slot 145 of the slider. It is constituted, on the one hand, by a rigid tab 146 extending on one side of the light 145 and, on the other hand, by a flexible lug 147 extending on the other side of the light. On both sides of the tabs, a sufficiently wide space between a lateral edge of a tab 146, 147 and the edge opposite the light 145, is provided for the passage of the yoke 116 when the slide 140 moves relative to the housing 160.
- the rigid lug 146 defines, with respect to the housing 160, a longitudinal recess 144a obtained by virtue of the spacing of the rear face 146a of the rigid lug with respect to the rear face 164 of the housing 160.
- This recess 144a forms a first portion of the 144.
- the rigid tab 146 terminates in an oblique surface 146b which is parallel to another oblique surface 147b forming the end of the flexible tab 147. These two oblique surfaces are sufficiently spaced apart to define between them a passage 144b for the shaft 117.
- This passage 144b forms a second portion of the guide path 144, following the recess 144a.
- the passage 144b ends in a bump 147a, forming part of the flexible tab and whose top is positioned at a non-zero distance d 147a from the rear face 164 of the casing 160.
- This bump 147a and the front face 146c delimit a third portion 144c of the guide path 144, following the passage 144b.
- the translation of the slide 140 thus makes it possible to guide the shaft 117 of the retractable abutment through the different portions 144a, 144b, 144c of the guide path 144.
- the shaft 117 deviates more or less from the rear face 164 of the housing 160.
- the shaft 117 In the first portion 144a, the shaft 117 is close to the surface 164.
- the second portion 144b it departs gradually to reach a maximum gap at the top of the bump 147a.
- the retractable stop 110 can only pivot about its axis of rotation X 111 , thanks to the pivot connection connecting it to the housing 160, the position of the shaft 117 directly conditions the angular position of the retractable stop, around the X axis 111 .
- the retractable stopper 110 is folded and the inner face 115 of the plate 113 abuts against the front face 163 of the housing 160.
- the plate 113 is immobilized, that is to say that the rotation of the plate about its axis of rotation X 111 is limited to a few degrees necessary for the proper operation of the mechanism. This angular limitation is obtained by the rigid tab 146.
- the retractable stop 110 begins to rotate, the shaft 117 comes into contact with the rear face 146a of the rigid tab. The rotation of the retractable stop 110 is then stopped.
- the mechanism When the sliding subassembly 125 is in its first stable position, the mechanism is in this blocking configuration of the retractable stop 110 in the folded position.
- This first stable position of the sliding subassembly 125, and therefore of the tilting mechanism 120 ensures in particular that, during the deployment of the screen 1, that is to say during a downward movement of the load bar 1, the retractable stop 110 does not interfere with the tip 4 neighbor. Moving the load bar 2 to the retractable abutment thus takes place smoothly and without noise.
- the immobilization of the retractable stop 110 within the meaning of the invention, when the tilting mechanism 120 is in this first stable position, provides additional security
- the retractable stop 110 rotates about its axis of rotation X 111 until reaching a functional opening angle.
- the tree 117 is then at the top of the hump 147a or close to this vertex.
- the functional opening angle is defined so that the position of the plate 113 is such that its lower edge 114 can cooperate with a surface 44 of a tip 4 representing one of the end pieces 4a or 4b of the figure 1 .
- the flexible tab 147 is flexible in the sense that, if the rotation of the plate 113 is blocked by an obstacle, the shaft 117 presses on the flexible tab to bend it.
- the bump 147a then flattens. This flexibility makes it possible to adjust the position of the retractable stop 110, and more particularly the position of the lower edge 114 of the plate 113, so as to ensure cooperation between the retractable stop 110 and the endpiece 4 as soon as it is necessary, taking into account manufacturing tolerances and mounting clearance. For example, when it deploys, the plate 113 can come into contact with a lateral edge of the nozzle 4, thus blocking the rotation of the retractable stop.
- the deployed position of the retractable stop corresponds to a configuration where the opening angle is functional.
- the Figures 6 to 9 represent the different stages of the activation of the blocking device.
- the figure 6 represents the disabled device.
- the retractable stop 110 is folded.
- the sliding subassembly is in its first stable position.
- the shaft 117 is located in the first portion 144a of the guide path 144 of the slide 140.
- the plate 113 is immobilized within the meaning of the invention. Following the "descent" operation of the screen, the load bar 2 moves vertically downwards, as indicated by the arrow D 2 until the endpiece 4 comes into contact with the upper face 133 of the activation plate 132.
- the figure 7 represents a phase of the actuation of the tilting mechanism.
- the load bar 2 causes the driver 130 to move downward, as indicated by the arrow D 130 until the sliding subassembly 125 comes to a stop.
- the load bar 2 must have a mass sufficient to be able to move the trainer and compress the spring 150.
- the shaft 117 then leaves the first portion 144a of the guide path 144 to enter the second 144b portion through the oblique surface 147b of the flexible lug 147. Therefore, the shaft 117 deviates from the rear face 164 of the housing 160 which causes the rotation of the plate 113 as indicated by the arrow R 113 to the figure 7 .
- ⁇ is the angle between the outer surface 116 of the plate 112 opposite the surface 115 and a plane parallel to the axis Z 160 .
- This angle ⁇ is approximately zero in the configuration of the figure 6 and increases progressively during the rotation of the plate 113 in the direction of the arrow R 113 .
- the angle ⁇ is the opening or tilting angle of the retractable stopper 110.
- the figure 8 represents the actuation of the tilting mechanism in view of activating the locking device.
- the sliding subassembly 125 comes to a stop, with the activation plate below its stable position.
- the stop is obtained by contact between the lower oblique surface 134 of the driver 130 and the oblique surface 168 of the housing 160.
- the shaft 117 has emerged from the second portion 144b of the guide path 144 has penetrated into the third portion 144c and has slightly exceeded the top of the bump 147a of the flexible tab 147.
- the opening angle ⁇ of the retractable stop 110 is then functional.
- the retractable stop 110 is deployed.
- the lower surface of the load bar is at a distance Z 2B from the base of the housing 160. This distance corresponds to the minimum aperture of the screen.
- the angle ⁇ of opening or tilting of the retractable abutment 110 is said to be "functional" when it is sufficient for the plate 113 to effectively provide a stop function for the upward movement of the bar. charge.
- the value of this functional opening angle depends on the dimensionality of the elements of the screen, in particular the spacing of the slides 5a and 5b and the length of the loaded bar 2 equipped with the tips 4a and 4b. In practice, this angle ⁇ is generally functional when its value exceeds 10 °.
- the figure 9 represents the activated device. Following an "up" maneuver of the screen 1, the load bar 2 rises as indicated by the arrow M 2 . The tip 4 then abuts, via its surface 44, against the lower edge 114 of the plate 113. The load bar is stopped. The screen is locked. The sliding subassembly 125 is in its second stable position. The tree 117 is located near the top of the bump 147a. The retractable stop 110 is deployed. The lower surface of the load bar is at a distance Z 2H from the base of the housing 160. This distance corresponds to the opening of the screen when it is locked in the low position.
- the Figures 10 to 13 represent the different stages of the deactivation of the blocking device.
- the figure 10 represents the activated device.
- the configuration is the same as that of the figure 9 .
- the difference comes from the direction of movement of the load bar 2.
- the deactivation of the device begins with a closing movement of the screen as indicated by the arrow D 2 at the figure 10 .
- the load bar then causes the movement of the driver until the sliding subassembly 125 comes to a stop.
- the figure 11 represents the end of the actuation of the tilting mechanism in view of disabling the locking device.
- the sliding subassembly 125 comes to a stop.
- the configuration is similar to that of the figure 8 .
- the figure 12 represents a step where the mechanism automatically moves the retractable stop 110 to its folded position. Disabling the locking device no longer requires any support of the tip on the trainer.
- This configuration is similar to that of the figure 7 but the kinematics is slightly different.
- the load bar 2 rises following maneuver "rise” of the screen, as indicated by the arrow M 2 to the figure 12 .
- the sliding subassembly 125 also rises, as indicated by the arrow M 130 at the figure 12 . But unlike the stage of the figure 8 this movement is generated by the spring 150 and not by the action of the tip 4.
- the tip 4 brakes the rise of the driver 130 but does not act directly on the sliding subassembly 125 During this step, the plate 113 folds down as indicated by the arrow R ' 113 . Its opening angle ⁇ decreases.
- This rotation is obtained by moving the shaft 117 which borrows the portion 144b, then the portion 144a of the guide path 144 of the slider.
- the shaft 117 is led in the portion 144b through the oblique surface 146b of the rigid tab 146.
- the non-zero distance 146b between the end of the oblique surface 146b and the rear face 164 of the housing 160 is greater at the distance d 147a .
- the difference is preferably greater than the diameter of the shaft 117.
- the upward movement of the slider drives the shaft 117 in this portion 144b by contact with this end portion of the oblique face 146b. It should be noted that the weight of the retractable stop naturally tends to rotate it in the direction of the slide 140. As a result, this movement also facilitates the guiding of the shaft 117 in the guide portion 144b.
- the figure 13 represents the disabled device.
- the load bar 2 continues its opening movement as indicated by the arrow M 2 .
- the retractable stop 110 is folded before the tip 4 can come into contact therewith. This configuration is similar to that of the figure 6 .
- the Figures 14 to 17 illustrate the mechanism allowing the sliding subassembly to move from one stable position to another.
- the figure 14 represents the activated blocking device.
- the sliding subassembly 125 is in its first stable position.
- the upper face 133 of the activation plate is then positioned at a height Z R relative to the base of the housing 160.
- This configuration corresponds to that of the figures 6 and 13 .
- the spring 150 urges the sliding subassembly against the surface 169 of the housing.
- the end 143a of the flexible tab 143 is received in a housing 171b of the guide path 171 of the housing 160.
- the sliding subassembly moves vertically upwards. it happens in abutment.
- the end 143a of the flexible tab deviates from its equilibrium position by a cam 171c formed by the guide path 171.
- the flexible tab flexes in a first direction of stress.
- the spring 150 compresses.
- the figure 15 represents the end of the actuation of the tilting mechanism in view of activating the locking device.
- the sliding subassembly 125 is in abutment.
- This configuration corresponds to that of the figure 8 .
- the end 143a of the flexible tab has passed the cam 171c and tends to return to its equilibrium position.
- the guide path 171 includes the housing 171a, at the output of the cam 171c. Consequently, the spring effect of the flexible tab associated with the position of the end of the flexible tab opposite the housing 171a makes it possible to move this end 143a towards the housing 171a when the sliding subassembly goes back driven by the spring 150.
- the tilting mechanism is actuated to activate the locking device when the end 143a of the flexible tab is opposite the housing 171a.
- the mechanism is actuated when the sliding subassembly is slightly above its position when it is in abutment.
- Z A1 is noted the position of the upper face 133 of the trainer when the mechanism is in this position of end of actuation. This position Z A1 is extrapolated to the figure 15 . In this configuration, the load bar is slightly above the Z 2B position.
- the figure 16 represents the activated blocking device.
- the sliding subassembly 125 is in its second stable position.
- the upper face 133 of the activation plate is then positioned at a height Z D relative to the base of the housing 160.
- This configuration corresponds to that of figures 9 and 10 .
- the end 143a of the flexible tab 143 is in the housing 171a of the guide path.
- the position of the housing 171a is misaligned, a non-zero distance 171 , measured parallel to the widths I1, I2 and I3, with respect to the position of the housing 171b, so that the end 143a of the flexible tab is not in her equilibrium position when she is in dwelling 171 a.
- the figure 17 represents the actuation of the tilting mechanism in view of disabling the locking device.
- the sliding subassembly 125 is in abutment.
- the tip 4 again presses the driver 130 to move the sliding subassembly 125 abutting.
- This configuration corresponds to that of the figure 11 .
- the kinematics of the flexible tab 143 is different.
- the end 143a of the flexible tab has a ramp 143b adapted to cooperate with a lower face 171d of the housing 171a.
- the flexible tab releases the end of the flexible tab of the housing 171a.
- the flexible tab returns to its position of equilibrium with respect to its first biasing direction, but remains constrained with respect to the second biasing direction.
- the end 143a of the flexible tab has left the guide path 171 and bears on a rear face 172 of the housing 160, in the vicinity of the path 171. It is this contact that generates the bias in the second direction.
- the tilting mechanism 120 is actuated to deactivate the locking device when the end 143a of the flexible tab escapes from the housing 171a.
- the mechanism is actuated when the sliding subassembly 125 is slightly above its position when it is in abutment.
- Z A2 denotes the position of the upper face 133 of the trainer when the mechanism is in this end of actuation position. This Z A2 position is extrapolated to the figure 15 . In this configuration, the load bar is slightly above the Z 2B position.
- the maximum aperture between the threshold of the screen and the load bar when it is locked depends, among other things, end of actuation positions Z A1 , Z A2 .
- the lowest actuation end position thus makes it possible to determine this maximum aperture since it is necessary that the mechanism can always be actuated.
- An actuating stroke corresponds to the difference between a stable position Z R , Z D and the corresponding actuation end position Z A1 , Z A2 . Consequently, the dimensioning actuating stroke is that which allows the deactivation of the locking system, namely the difference between the second stable position Z D and the end position of actuation Z A2 .
- This actuation stroke must be as low as possible so that the end position of actuation Z A2 is the highest possible.
- the actuation stroke for deactivating the locking system is advantageously less than five millimeters and preferably less than two millimeters. Furthermore, it is preferable that the end of actuation position Z A1 is above the end of actuation position Z A2 or slightly below. In the latter case, it is the end of actuation position Z A1 that becomes dimensioning to determine the maximum aperture between the threshold of the screen and the load bar when it is locked.
- the distance between the two positions of end of actuation Z A1 , Z A2 of the tilting mechanism is as small as possible, that is, less than five millimeters and, preferably, less than two millimeters.
- the automatic control of the actuation of the mechanism is facilitated because it is sufficient to move the screen to the same close position, controllable, to activate or deactivate the locking device.
- the difference is substantially zero, the two actuating positions correspond to a position slightly above the position of the sliding sub-assembly in abutment.
- the actuation of the tilting mechanism 120 in the sense of the invention is the action for triggering the irreversible tilting of the retractable stop 110 from an extended position to a folded position or vice versa.
- the tilting mechanism When the tilting mechanism is actuated, it does not necessarily mean that the tilting is already done. In this case, the tilting can be done automatically during a subsequent maneuver.
- the activation or deactivation of the locking device means that the retractable stop has already rocked from one position to another.
- the deactivation of the locking device is done in two stages. At first, the mechanism is actuated or triggered by an action of the tip on the coach, as illustrated by the figures 11 and 17 , but the retractable stop always remains deployed at the end of the actuation.
- the release of the driver automatically drives the retractable stop to the folded position, as illustrated in FIG. figure 12 .
- the blocking device is then deactivated. Conversely, the activation of the blocking device is different by taking place in a single operation.
- the retractable stop is already in the deployed position, as illustrated in FIGS. figures 8 and 15 .
- the tilting of a folded position to an unfolded position proceeded simultaneously with the actuation of the mechanism.
- the blocking device is then activated.
- the retractable abutment 110 is not continuously associated with a return element that may wear. In the folded position, no element acts on it. In the deployed position, the retractable stop bears on a flexible element 147 enabling it to adjust the angular position by a return element.
- the flexible element is weakly solicited for occasional use and therefore insensitive to breakage.
- the invention is applicable to various closure or sunscreen installations in which the screen can be a Venetian blind, a shutter or the like.
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Abstract
Description
L'invention concerne le domaine des écrans de fermeture et/ou de protection solaire, équipés d'une barre de charge, tels que des stores toile ou vénitiens extérieurs ou celui des volets roulant. L'invention concerne plus particulièrement les dispositifs de blocage de la barre de charge de ces écrans. De tels dispositifs permettent de tendre la toile de sorte qu'elle ne claque pas, par exemple, en présence de vent, ou de limiter l'ouverture du tablier, par exemple, pour éviter une tentative d'intrusion.The invention relates to the field of closure screens and / or sun protection, equipped with a load bar, such as blinds or venetian outdoor or rolling shutters. The invention relates more particularly to the devices for blocking the load bar of these screens. Such devices make it possible to stretch the fabric so that it does not slap, for example, in the presence of wind, or to limit the opening of the apron, for example, to avoid an attempted intrusion.
Il existe de nombreuses solutions de verrouillage de barres de charge d'écrans de protection.There are many solutions for locking protection bars of protection screens.
Une première solution consiste à disposer un moyen de blocage pivotant, à chaque extrémité de la barre de charge, susceptible de coopérer avec une surface d'une butée fixée sur une partie du cadre de l'écran. Un mécanisme permet de faire basculer alternativement le moyen de blocage entre une position où il coopère avec la butée fixe et une position où il ne coopère pas avec la butée fixe.A first solution is to have a pivoting locking means at each end of the load bar, capable of cooperating with a surface of a stop fixed on a portion of the frame of the screen. A mechanism alternately tilts the locking means between a position where it cooperates with the fixed stop and a position where it does not cooperate with the fixed stop.
Ainsi, le brevet
La demande de brevet
Cette première solution intègre donc un élément de blocage mobile en extrémité de la barre de charge. De ce fait, cet élément peut bouger lors du déplacement de la barre de charge et générer ainsi une nuisance sonore. D'autre part, compte tenu du nombre de variantes d'écrans, l'intégration de cet élément de blocage en extrémité de barre de charge peut s'avérer difficile, voire inesthétique. Cette solution impose l'utilisation d'une barre de charge équipée de l'élément de blocage complexe, ce qui rend l'installation spécifique et augmente, en conséquence, le nombre de références à gérer.This first solution therefore incorporates a movable locking element at the end of the load bar. As a result, this element can move while moving the load bar and thus generate a noise nuisance. On the other hand, given the number of screen variants, the integration of this blocking element at the end of the load bar can be difficult or even unsightly. This solution imposes the use of a load bar equipped with the complex blocking element, which makes the installation specific and increases, consequently, the number of references to be managed.
Une deuxième solution consiste à utiliser un verrou dont la gâche est activable par une action manuelle de l'utilisateur ou par un système électrique indépendant du mouvement de l'écran. Dans le premier cas, le verrou n'est pas utilisable en automatique. Dans le deuxième cas, l'installation est complexe et coûteuse, car elle nécessite la pose d'un système électrique spécifique activant la gâche du verrou. Ces solutions sont fragiles et sujettes à la casse mécanique.A second solution is to use a latch whose strike is activated by a manual action of the user or by an electrical system independent of the movement of the screen. In the first case, the lock can not be used automatically. In the second case, the installation is complex and expensive, because it requires the installation of a specific electrical system activating the lock strike. These solutions are fragile and subject to mechanical breakage.
Une troisième solution consiste à placer une butée escamotable notamment dans des coulisses guidant l'écran. La barre de charge est alors équipée d'un embout simple à chacune de ses extrémités. Cet embout agit sur un mécanisme associé à la butée escamotable permettant d'activer ou de désactiver la butée. Un moyen de rappel permet de maintenir la butée escamotable en position active. Le mécanisme est actionné par un mouvement de va-et-vient de la barre de charge, en fin de course basse de l'écran. Cette troisième solution est notamment illustrée dans les demandes de brevet
Toutes ces solutions mettent en oeuvre une action directe de l'embout sur la butée escamotable lors de la fermeture de l'écran. Pour pouvoir passer la butée escamotable, la barre de charge doit exercer un effort suffisant pour s'opposer à l'effort de rappel de la butée escamotable. Le dimensionnement du dispositif de verrouillage, qui dépend du poids de la barre de charge, par rapport au moyen de rappel de la butée escamotable, peut être délicat. De plus, le contact systématique de l'embout sur la butée peut abîmer celle-ci à chaque fermeture de l'écran. Enfin, le rappel de la butée escamotable après le passage de l'embout peut engendrer du bruit.All these solutions implement a direct action of the tip on the retractable stopper when closing the screen. To pass the retractable stop, the load bar must exert sufficient effort to oppose the retraction force of the retractable stop. The sizing of the locking device, which depends on the weight of the load bar, relative to the return means of the retractable stop, may be difficult. In addition, the systematic contact of the tip on the stop can damage it at each closing of the screen. Finally, the reminder of the retractable stop after the passage of the tip can cause noise.
L'invention propose un dispositif de verrouillage et de déverrouillage de la barre de charge alternatif aux systèmes précédents.The invention proposes a device for locking and unlocking the load bar reciprocating the previous systems.
A cet effet, l'invention concerne un dispositif de blocage d'une barre de charge d'un écran comprenant une butée escamotable, un embout fixé à une extrémité de la barre de charge et susceptible de coopérer avec la butée escamotable et un mécanisme de basculement associé à la butée escamotable permettant, dans une premier cas, de déplacer la butée escamotable d'une position repliée, où elle n'est pas susceptible de coopérer avec l'embout, à une position déployée, où elle est susceptible de coopérer avec l'embout et, dans un deuxième cas, de déplacer la butée escamotable de la position déployée à la position repliée. Dans les deux cas de basculement, le mécanisme de basculement est actionné par un déplacement de la barre de charge. Le dispositif de blocage est activé quand le mécanisme de basculement a déplacé la butée escamotable en position déployée. A l'inverse, le dispositif de blocage est désactivé quand le mécanisme de basculement a déplacé la butée escamotable en position repliée. Le mécanisme de basculement permet également de maintenir la butée escamotable dans sa position repliée lors du déploiement de l'écran, quand celui-ci passe d'une position ouverte ou semi-ouverte à une position fermée où l'écran occulte complètement l'ouverture associée. Ce maintien de la butée escamotable en position repliée évite tout contact entre la butée escamotable et l'embout prolongeant la barre de charge lors du passage de celui-ci au niveau de la butée escamotable, avant que l'embout ne soit en contact avec le mécanisme de basculement, lors du déploiement de l'écran. Le déplacement de la barre de charge au niveau de la butée escamotable est ainsi fluide, continu, sans saccades et sans nuisance sonore.For this purpose, the invention relates to a device for blocking a load bar of a screen comprising a retractable stop, a tip attached to one end of the load bar and capable of cooperating with the retractable stop and a locking mechanism. tilt associated with the retractable stop allowing, in a first case, to move the retractable stop from a folded position, where it is not likely to cooperate with the tip, to an extended position, where it is likely to cooperate with the tip and, in a second case, to move the retractable stop from the deployed position to the folded position. In both cases of tilting, the tilting mechanism is actuated by a displacement of the load bar. The locking device is activated when the tilting mechanism has moved the retractable stop into the extended position. Conversely, the locking device is deactivated when the tilting mechanism has moved the retractable stop to the folded position. The tilting mechanism also makes it possible to keep the retractable stop in its folded position when the screen is deployed, when it moves from an open or semi-open position to a closed position where the screen completely obscures the opening associated. This retention of the retractable stop in the folded position avoids any contact between the retractable stop and the tip extending the load bar during the passage thereof at the retractable stop, before the tip is in contact with the failover mechanism, when deploying the screen. The displacement of the load bar at the retractable abutment is thus fluid, continuous, without saccades and without noise nuisance.
Préférentiellement, seules des manoeuvres de fermeture de l'écran actionnent le mécanisme de basculement. Cette conception du mécanisme permet de mettre en oeuvre un verrouillage automatique simple et contrôlable à partir de mouvements définis de l'écran, qu'il soit provoqué manuellement ou par un moteur.Preferably, only closing maneuvers of the screen actuate the tilting mechanism. This design of the mechanism makes it possible to implement a simple and controllable automatic locking from defined movements of the screen, whether it is caused manually or by a motor.
Le mécanisme de basculement peut être actionné par la barre de charge directement ou par l'embout monté dans le prolongement de la barre de charge. L'embout peut être de conception simple, facilement adaptable à différents types d'écrans.The tilting mechanism can be actuated by the load bar directly or by the nozzle mounted in the extension of the load bar. The tip can be simple in design, easily adaptable to different types of screens.
Après actionnement du mécanisme de basculement permettant la désactivation du dispositif de blocage, le mécanisme de basculement déplace préférentiellement la butée escamotable en position repliée avant que l'embout n'entre en contact avec un élément du dispositif de blocage lorsqu'il monte. En conséquence, aucun élément du mécanisme de basculement n'entrave la course de l'embout lors de l'ouverture de l'écran. Le déplacement de la barre de charge au niveau de la butée escamotable est ainsi fluide, continue, sans saccades et sans nuisance sonore.After actuation of the tilting mechanism for disabling the locking device, the tilting mechanism preferably moves the retractable stop into the folded position before the endpiece comes into contact with an element of the locking device as it rises. Consequently, no element of the tilting mechanism hinders the stroke of the mouthpiece when opening the screen. The displacement of the load bar at the retractable abutment is thus fluid, continuous, without saccades and without noise nuisance.
Pour améliorer l'intégration du dispositif, celui-ci peut être logé à l'intérieur d'une des coulisses latérales guidant l'écran. Le dispositif est alors caché et protégé.To improve the integration of the device, it can be housed inside one of the side slides guiding the screen. The device is then hidden and protected.
Avantageusement, la butée escamotable coopère avec un moyen élastique permettant d'adapter sa position déployée. La butée escamotable peut s'adapter aux différentes dimensions de barre de charge ou compenser les jeux de fonctionnement. Ainsi, quelle que soit la position de l'embout prolongeant la barre de charge, le moyen élastique positionne la butée escamotable de manière à ce qu'elle puisse toujours coopérer avec l'embout.Advantageously, the retractable abutment cooperates with an elastic means for adapting its deployed position. The retractable stop can adapt to the different load bar dimensions or compensate for the operating clearance. Thus, whatever the position of the tip extending the load bar, the resilient means positions the retractable stop so that it can always cooperate with the tip.
En position repliée, la butée escamotable est préférentiellement immobilisée par rapport à la structure fixe encadrant l'écran. L'immobilisation consiste à limiter le déplacement de la butée escamotable de manière à ce qu'elle ne puisse pas interférer avec l'embout quand la barre de charge se déplace. Le déplacement de la barre de charge n'est donc pas perturbé.In the folded position, the retractable stop is preferably immobilized relative to the fixed structure flanking the screen. The immobilization consists in limiting the movement of the retractable stop so that it can not interfere with the endpiece when the load bar moves. The displacement of the load bar is therefore not disturbed.
Une solution simple pour réaliser la butée escamotable consiste à utiliser une plaque pivotante autour d'un axe perpendiculaire au plan formé par l'écran, une fois déployé. La plaque peut couvrir et protéger une partie du mécanisme lorsqu'elle est repliée.A simple solution for making the retractable stop is to use a pivoting plate about an axis perpendicular to the plane formed by the screen, once deployed. The plate can cover and protect part of the mechanism when folded.
Le mécanisme de basculement peut comprendre une plaque d'activation mobile entre deux positions stables, à savoir une première position stable où la butée escamotable est repliée et une deuxième position stable où la butée escamotable est déployée. L'embout de la barre de charge interagit avec cette plaque d'activation, notamment par appui, pour la faire passer d'une position stable à l'autre. Ces positions stables de la plaque d'activation permettent de s'assurer que la butée escamotable est également maintenue dans une position stable, quelle que soit la position de la barre de charge.The tilting mechanism may comprise a movable activation plate between two stable positions, namely a first stable position where the retractable stop is folded and a second stable position where the retractable stop is deployed. The tip of the load bar interacts with this activation plate, including support, to move it from one stable position to another. These stable positions of the activation plate make it possible to ensure that the retractable stop is also maintained in a stable position, whatever the position of the load bar.
L'invention concerne également une installation de fermeture ou de protection solaire comprenant un écran équipé d'une barre de charge se déplaçant entre deux coulisses et équipé d'un embout à chacune de ses extrémités caractérisé en ce que chaque embout forme, avec un sous-ensemble comprenant une butée escamotable, un dispositif de blocage.The invention also relates to a closure or sun protection system comprising a screen equipped with a load bar moving between two slides and equipped with a tip at each of its ends characterized in that each tip forms, with a sub assembly comprising a retractable stop, a locking device.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels :
- la
figure 1 est une coupe verticale de principe d'une installation conforme à l'invention comprenant un écran équipé d'une barre de charge et un dispositif de blocage selon l'invention ; - les
figures 2 et 3 sont des vues en perspective éclatées, respectivement par l'avant et par l'arrière, d'un sous-ensemble verrou équipé d'une butée escamotable appartenant au dispositif de blocage de l'installation de lafigure 1 ; - la
figure 4 est une vue en perspective en demi-coupe du sous-ensemble verrou desfigures 2 et 3 équipé de la butée escamotable quand le dispositif de blocage est activé ; - la
figure 5 est une vue en perspective en demi-coupe du mécanisme de basculement desfigures 2 et 3 équipé de la butée escamotable quand le dispositif de blocage est désactivé ; - les
figures 6 à 9 sont des coupes partielles représentant l'activation du dispositif de blocage équipant l'installation de lafigure 1 ; - les
figures 10 à 13 sont des coupes partielles représentant la désactivation du dispositif de blocage équipant l'installation de lafigure 1 ; - les
figures 14 à 17 sont des vues de face représentant l'état du sous-ensemble verrou équipé de la butée escamotable en cours de fonctionnement.
- the
figure 1 is a vertical section of principle of an installation according to the invention comprising a screen equipped with a load bar and a locking device according to the invention; - the
figures 2 and3 are exploded perspective views, respectively front and rear, of a latch subassembly equipped with a retractable stop belonging to the locking device of the installation of thefigure 1 ; - the
figure 4 is a half-section perspective view of the latch subassemblyfigures 2 and3 equipped with the retractable stop when the locking device is activated; - the
figure 5 is a perspective view in half-section of the tilting mechanism offigures 2 and3 equipped with the retractable stop when the locking device is deactivated; - the
Figures 6 to 9 are partial sections representing the activation of the locking device equipping the installation of thefigure 1 ; - the
Figures 10 to 13 are partial cuts representing the deactivation of the locking device equipping the installation of thefigure 1 ; - the
Figures 14 to 17 are front views showing the state of the latch subassembly equipped with the retractable stop during operation.
La
Dans cette description, on considère que les faces des objets visibles à la
Les
La butée escamotable 110 comprend deux arbres coaxiaux 111 a et 111 b, de même diamètre, disposés de part et d'autre d'une patte 112. Ces deux arbres définissent ensemble un axe de rotation X111. Une plaque 113 prolonge la patte 112 et se termine par un bord inférieur 114. Une chape 116 est fixée sur la face interne 115 de la plaque 113 tournée vers le boîtier 160 en configuration montée de la butée escamotable 110 sur le boîtier 160. La chape 116 supporte un arbre 117 dont l'axe de révolution X117 est parallèle à l'axe de rotation X111 et éloigné d'une distance non nulle d117 de celui-ci selon une projection de ces axes dans un plan perpendiculaire à la plaque 113.The
La butée escamotable 110 se monte sur le boîtier 160 en logeant chaque arbre 111 a, 111 b respectivement dans un berceau correspondant 161 a, 161 b du boîtier 160. Ces berceaux 161 a et 161 b sont en arc de cercle et définissent ensemble un axe de pivot X161. La mise en place de la butée escamotable 110 est réalisée grâce à des rainures de montage 162a, 162b prévues sur le boîtier 160. Une fois la butée escamotable 110 montée sur le corps 160, les axes X111 et X161 sont confondus ou quasi-confondus. La butée escamotable 110 peut alors pivoter, par rapport au corps 160, autour de son axe de rotation X111. La rotation de la butée escamotable 110 est limitée, dans un sens, par la face interne 115 de la plaque 113 qui vient en appui contre une face avant 163 du boîtier 160. Dans l'autre sens, sa rotation est limitée par une face d'extrémité 118 de la patte 112 qui vient en appui contre une face 165 du boîtier 160 qui est inclinée par rapport à la face avant 163. La butée escamotable 110 est en position repliée quand la face interne 115 de la plaque 113 vient sensiblement en appui contre la face avant 163 du boîtier 160. La butée escamotable 110 est en position déployée quand la face d'extrémité 118 de la patte 112 s'approche de la face 165 du boîtier. Le boîtier 160 comprend en outre une première lumière 166 permettant de recevoir l'arbre 117 quand la butée escamotable 110 est en position repliée.The
On note Z160 un axe longitudinal du boîtier 160. L'axe Z160 est vertical en configuration installée du sous-ensemble verrou 100 dans une coulisse 5a ou 5b.Z 160 is a longitudinal axis of the
Pour faire basculer la butée escamotable de la position repliée à la position déployée ou inversement, il est prévu un mécanisme de basculement 120 à plusieurs éléments. Ce mécanisme comprend un sous-ensemble coulissant 125 formé par l'entraîneur 130 et le coulisseau 140. L'assemblage de ces deux parties 130 et 140 est obtenu grâce à des moyens d'assemblage 131 et 141, tels que, par exemple, des moyens de liaison par clippage. L'entraîneur 130 est, préférentiellement, en matériau rigide, par exemple en acier fritté, alors que le coulisseau est, préférentiellement, en matière souple, telle qu'une matière plastique.To tilt the retractable stop from the folded position to the deployed position or vice versa, there is provided a
On note Z125 un axe longitudinal du sous-ensemble coulissant 125. En configuration montée du sous-ensemble coulissant 125 sur le boîtier 160, les axes Z125 et Z160 sont parallèles.Z 125 is a longitudinal axis of the sliding
Le sous-ensemble coulissant 125 comprend plusieurs sections S1, S2 et S3 reparties le long de l'axe Z125 et de largeurs I1, I2, I3 différentes, ces largeurs étant mesurées perpendiculairement à l'axe Z125 et parallèlement à la face avant 163 du boîtier 160. Chaque section S1, S2 ou S3 se loge dans une rainure correspondante R1, R2 et R3 du boîtier. La largeur I1, I2 ou I3 de chaque section S1, S2 ou S3 est légèrement inférieure à la largeur l'1, l'2, l'3 de la rainure R1, R2 ou R3 correspondante. Ainsi, le sous-ensemble coulissant 125 peut se déplacer en translation le long de ces rainures, parallèlement aux axes Z125 et Z160.The sliding
Dans le cas présent, le guidage du sous-ensemble 125 par le boîtier 160 est vertical.In this case, the guide of the
Dans sa partie inférieure, le boîtier 160 est pourvu d'une deuxième lumière 167 permettant de relier une partie arrière 135 de l'entraîneur 130 à une plaque d'activation 132 s'étendant perpendiculairement à la face avant 163 du boîtier, en direction d'un embout 4a ou 4b engagé dans la coulisse 5a ou 5b dans laquelle est installé le sous-ensemble verrou 100. La partie arrière de l'entraîneur 130 est celle qui porte les moyens d'assemblage 131 et qui se situe dans le prolongement du coulisseau 140, selon l'axe Z125. Dans le cas présent, la plaque d'activation 132 est horizontale et la face avant 163 est verticale et perpendiculaire au plan de l'écran 1 une fois celui-ci déployé.In its lower part, the
Le mécanisme de basculement 120 est actionné par un appui d'un embout 4a ou 4b sur la face supérieure 133 de la plaque d'activation 132. Le déplacement du sous-ensemble coulissant 125 est limité dans un premier sens, vers le bas, par le contact entre une surface oblique inférieure 134 de l'entraîneur et une surface oblique 168 bordant la rainure R3 du boîtier vers le bas. Dans le deuxième sens, opposé au premier, c'est-à-dire, vers le haut, le sous-ensemble coulissant 125 est arrêté par le contact entre une surface supérieure 149 du coulisseau avec une surface 169 délimitant la rainure R1 vers le haut.The
Le sous-ensemble verrou 100 comprend également un ressort 150 destiné à pousser par défaut le sous-ensemble coulissant 125 selon le deuxième sens décrit précédemment. Dans le cas présent, le coulisseau est donc poussé vers le haut. Pour cela, le ressort 150 est en appui, d'un coté, sur une surface 170 du boîtier et, de l'autre coté, sur une surface 142 du coulisseau 140.The
Le sous-ensemble coulissant 125 peut prendre une première position stable correspondant à une configuration où il bute, par sa surface 149, contre la surface 169 du boîtier, sous l'action du ressort 150. Dans cette configuration représentée notamment à la
Le sous-ensemble coulissant 125 peut prendre une deuxième position stable pour laquelle la butée escamotable 110 est déployée et la face supérieure 133 de l'entraîneur est positionnée à une deuxième distance ZD de la base du boîtier 160, comme représenté à la
Le basculement d'une position stable à l'autre est détaillé dans ce qui suit.The changeover from one stable position to another is detailed in the following.
La butée escamotable 110 peut prendre les positions mentionnées ci-dessus : une position déployée et une position repliée. Pour basculer d'une position à l'autre, la butée escamotable pivote autour de son axe de rotation X111 grâce à une action du coulisseau 140 sur l'arbre 117. Pour cela, le coulisseau 140 forme un « chemin de guidage » 144 permettant de déplacer l'arbre 117 dans différentes positions par rapport au boîtier fixe 160. Le chemin de guidage 144 est réalisé dans une lumière 145 du coulisseau. Il est constitué, d'une part, par une patte rigide 146 s'étendant d'un coté de la lumière 145 et, d'autre part, par une patte souple 147 s'étendant de l'autre coté de la lumière. De part et d'autre des pattes, un espace suffisamment large, entre un bord latéral d'une patte 146, 147 et le bord en vis-à-vis de la lumière 145, est prévu pour le passage de la chape 116 quand le coulisseau 140 se déplace par rapport au boîtier 160.The
La patte rigide 146 définit, par rapport au boîtier 160, un évidement longitudinal 144a obtenu grâce à l'écartement de la face arrière 146a de la patte rigide par rapport à la face arrière 164 du boîtier 160. Cet évidement 144a forme une première portion du chemin de guidage 144. La patte rigide 146 se termine par une surface oblique 146b qui est parallèle à une autre surface oblique 147b formant l'extrémité de la patte souple 147. Ces deux surfaces obliques sont suffisamment écartées pour définir entre elles un passage 144b pour l'arbre 117. Ce passage 144b forme une deuxième portion du chemin de guidage 144, faisant suite à l'évidement 144a. Le passage 144b se termine par une bosse 147a, faisant partie de la patte souple et dont le sommet est positionné à une distance non nulle d147a de la face arrière 164 du boîtier 160. Cette bosse 147a et la face avant 146c délimitent une troisième portion 144c du chemin de guidage 144, faisant suite au passage 144b.The
La translation du coulisseau 140 permet donc de guider l'arbre 117 de la butée escamotable à travers les différentes portions 144a, 144b, 144c du chemin de guidage 144. Ainsi guidé, l'arbre 117 s'écarte plus ou moins de la face arrière 164 du boîtier 160. Dans la première portion 144a, l'arbre 117 est proche de la surface 164. Dans la seconde portion 144b, il s'en écarte progressivement jusqu'à atteindre un écart maximum au sommet la bosse 147a. Or, comme la butée escamotable 110 ne peut que pivoter autour de son axe de rotation X111, grâce à la liaison pivot la reliant au boîtier 160, la position de l'arbre 117 conditionne directement la position angulaire de la butée escamotable, autour de l'axe X111.The translation of the
En conséquence, quand l'arbre 117 se situe dans la première portion 144a, la butée escamotable 110 est repliée et la face interne 115 de la plaque 113 vient en appui contre la face avant 163 du boîtier 160. Dans cette configuration, la plaque 113 est immobilisée, c'est-à-dire que la rotation de la plaque autour de son axe de rotation X111 est limitée à quelques degrés nécessaires pour le bon fonctionnement du mécanisme. Cette limitation angulaire est obtenue par la patte rigide 146. Dès que la butée escamotable 110 commence à tourner, l'arbre 117 entre en contact avec la face arrière 146a de la patte rigide. La rotation de la butée escamotable 110 est alors stoppée. Quand le sous-ensemble coulissant 125 est dans sa première position stable, le mécanisme est dans cette configuration de blocage de la butée escamotable 110 en position repliée. Cette première position stable du sous-ensemble coulissant 125, et donc du mécanisme de basculement 120, assure en particulier que, lors du déploiement de l'écran 1, c'est-à-dire lors d'un mouvement vers le bas de la barre de charge 1, la butée escamotable 110 n'interfère pas avec l'embout 4 voisin. Le déplacement de la barre de charge 2 au voisinage de la butée escamotable a ainsi lieu sans heurt et sans bruit. L'immobilisation de la butée escamotable 110 au sens de l'invention, lorsque le mécanisme de basculement 120 est dans cette première position stable, apporte une sécurité complémentaireAccordingly, when the
Lorsque l'arbre 117 emprunte la deuxième portion 144b du chemin de guidage 144 suite au déplacement du sous-ensemble coulissant 125, la butée escamotable 110 tourne autour de son axe de rotation X111 jusqu'à atteindre un angle d'ouverture fonctionnel. L'arbre 117 est alors au niveau du sommet de la bosse 147a ou proche de ce sommet. L'angle d'ouverture fonctionnel est défini de manière à ce que la position de la plaque 113 est telle que son bord inférieur 114 puisse coopérer avec une surface 44 d'un embout 4 représentant l'un des embouts 4a ou 4b de la
La patte souple 147 est flexible dans le sens où, si la rotation de la plaque 113 est bloquée par un obstacle, l'arbre 117 appuie sur la patte souple pour la faire fléchir. La bosse 147a s'aplatit alors. Cette souplesse permet d'ajuster la position de la butée escamotable 110, et plus particulièrement la position du bord inférieur 114 de la plaque 113, de manière à assurer la coopération entre la butée escamotable 110 et l'embout 4 dès que cela est nécessaire, en tenant compte des tolérances de fabrication et des jeux de montage. Par exemple, lorsqu'elle se déploie, la plaque 113 peut entrer en contact avec un bord latéral de l'embout 4, bloquant ainsi la rotation de la butée escamotable. La position déployée de la butée escamotable correspond à une configuration où l'angle d'ouverture est fonctionnel.The
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On note α l'angle entre la surface externe 116 de la plaque 112 opposée à la surface 115 et un plan parallèle à l'axe Z160. Cet angle α vaut approximativement zéro dans la configuration de la
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Au sens de cette description, l'angle α d'ouverture ou de basculement de la butée escamotable 110 est dit « fonctionnel » lorsqu'il est suffisant pour que la plaque 113 assure efficacement une fonction de butée au mouvement de remontée de la barre de charge. La valeur de cet angle d'ouverture fonctionnel dépend du dimensionnel des éléments de l'écran, en particulier de l'écartement des coulisses 5a et 5b et de la longueur de la barre de chargé 2 équipé des embouts 4a et 4b. En pratique, cet angle α est généralement fonctionnel lorsque sa valeur dépasse 10°.Within the meaning of this description, the angle α of opening or tilting of the
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Le mécanisme de basculement 120 est actionné pour désactiver le dispositif de blocage quand l'extrémité 143a de la patte flexible s'échappe du logement 171 a. Dans le cas présent, le mécanisme est actionné quand le sous-ensemble coulissant 125 est légèrement au-dessus de sa position quand il est en butée. On note ZA2 la position de la face supérieure 133 de l'entraîneur quand le mécanisme est dans cette position de fin d'actionnement. Cette position ZA2 est extrapolée à la
Ensuite, quand la barre de charge 2 remonte, le sous-ensemble coulissant 125 remonte également, sous l'impulsion du ressort 150. L'extrémité 143a de la patte flexible 143 se déplace verticalement, en appui continu sur la face arrière 172 du boîtier, jusqu'à atteindre l'emplacement du logement 171 b du chemin de guidage 171. A cette position, l'extrémité de la patte flexible entre de nouveau dans le chemin de guidage. Dans cette configuration, la patte flexible revient à sa position d'équilibre par rapport à sa deuxième direction de sollicitation. Elle n'est plus sollicitée. Cette configuration correspond à la
L'ajour maximum entre le seuil de l'écran et la barre de charge quand celle-ci est verrouillée dépend, entre autres, des positions de fin d'actionnement ZA1, ZA2. La position de fin d'actionnement la plus basse permet ainsi de déterminer cet ajour maximum puisqu'il faut que le mécanisme puisse toujours être actionné. Une course d'actionnement correspond à la différence entre une position stable ZR, ZD et la position de fin d'actionnement correspondant ZA1, ZA2. En conséquence, la course d'actionnement dimensionnante est celle permettant la désactivation du système de blocage, à savoir la différence entre la deuxième position stable ZD et la position de fin d'actionnement ZA2. Cette course d'actionnement doit être la plus faible possible pour que la position de fin d'actionnement ZA2 soit la plus haute possible. La course d'actionnement permettant la désactivation du système de blocage est avantageusement inférieure à cinq millimètres et, préférentiellement, inférieure à deux millimètres. Par ailleurs, il est préférable que la position de fin d'actionnement ZA1 soit au-dessus de la position de fin d'actionnement ZA2 ou légèrement au-dessous. Dans le dernier cas, c'est la position de fin d'actionnement ZA1 qui devient dimensionnante pour déterminer l'ajour maximum entre le seuil de l'écran et la barre de charge quand celle-ci est verrouillée.The maximum aperture between the threshold of the screen and the load bar when it is locked depends, among other things, end of actuation positions Z A1 , Z A2 . The lowest actuation end position thus makes it possible to determine this maximum aperture since it is necessary that the mechanism can always be actuated. An actuating stroke corresponds to the difference between a stable position Z R , Z D and the corresponding actuation end position Z A1 , Z A2 . Consequently, the dimensioning actuating stroke is that which allows the deactivation of the locking system, namely the difference between the second stable position Z D and the end position of actuation Z A2 . This actuation stroke must be as low as possible so that the end position of actuation Z A2 is the highest possible. The actuation stroke for deactivating the locking system is advantageously less than five millimeters and preferably less than two millimeters. Furthermore, it is preferable that the end of actuation position Z A1 is above the end of actuation position Z A2 or slightly below. In the latter case, it is the end of actuation position Z A1 that becomes dimensioning to determine the maximum aperture between the threshold of the screen and the load bar when it is locked.
Avantageusement, l'écart entre les deux positions de fin d'actionnement ZA1, ZA2 du mécanisme de basculement est la plus faible possible, c'est à dire, inférieur à cinq millimètres et, préférentiellement, inférieur à deux millimètres. Avec un faible écart, le pilotage en automatique de l'actionnement du mécanisme est facilité car il suffit de déplacer l'écran jusqu'à une même position proche, maîtrisable, pour activer ou désactiver le dispositif de blocage. Dans le cas présent, l'écart est sensiblement nul, les deux positions d'actionnement correspondent à une position légèrement au-dessus de la position du sous-ensemble coulissant en butée.Advantageously, the distance between the two positions of end of actuation Z A1 , Z A2 of the tilting mechanism is as small as possible, that is, less than five millimeters and, preferably, less than two millimeters. With a small difference, the automatic control of the actuation of the mechanism is facilitated because it is sufficient to move the screen to the same close position, controllable, to activate or deactivate the locking device. In the present case, the difference is substantially zero, the two actuating positions correspond to a position slightly above the position of the sliding sub-assembly in abutment.
L'actionnement du mécanisme de basculement 120 au sens de l'invention est l'action permettant de déclencher le basculement irréversible de la butée escamotable 110 d'une position déployée à une position repliée ou inversement. Quand le mécanisme de basculement est actionné, cela ne signifie pas nécessairement que le basculement est déjà réalisé. Dans ce cas, le basculement peut se faire automatiquement lors d'une manoeuvre suivante. A l'inverse, l'activation ou la désactivation du dispositif de blocage signifie que la butée escamotable a déjà basculé d'une position à l'autre. Par exemple, selon le mode de réalisation décrit, la désactivation du dispositif de blocage se fait en deux temps. Dans un premier temps, le mécanisme est actionné ou déclenché par une action de l'embout sur l'entraîneur, comme illustré par les
La butée escamotable 110 n'est pas associée continuellement à un élément de rappel susceptible de s'user. En position repliée, aucun élément n'agit sur elle. En position déployée, la butée escamotable est en appui sur un élément flexible 147 lui permettant d'ajuster la position angulaire par un élément de rappel. L'élément flexible est faiblement sollicité pour un usage occasionnel et donc peu sensible à la casse.The
L'invention est applicable à diverses installations de fermeture ou de protection solaire dans lesquelles l'écran peut être un store toile ou vénitien, un volet roulant ou équivalent.The invention is applicable to various closure or sunscreen installations in which the screen can be a Venetian blind, a shutter or the like.
Claims (11)
caractérisé en ce que
lors du déploiement de l'écran (1), le mécanisme de basculement (120) maintient la butée escamotable (110) en position repliée, avant que l'embout (4) ne soit en contact avec le mécanisme de basculement (120).Device (4, 100) for locking a load bar (2) of a screen (1) comprising a retractable stop (110), an end piece (4) fixed at one end of the load bar (2) and capable of cooperating with the retractable stop (110) and a tilting mechanism (120) associated with the retractable stop allowing, in a first case, to move the retractable stop from a folded position (FIGS. 5, 9), where it is not likely to cooperate with the endpiece, in an extended position (FIGS. 4, 13), where it is capable of cooperating with the end piece (4) and, in a second case, to move the retractable stopper from the position deployed in the folded position, the tilting mechanism being actuated, in both cases of tilting, by a displacement of the load bar (2)
characterized in that
when deploying the screen (1), the tilting mechanism (120) holds the retractable stop (110) in the folded position, before the tip (4) is in contact with the tilting mechanism (120).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1058438A FR2966189B1 (en) | 2010-10-15 | 2010-10-15 | DEVICE FOR LOCKING A CHARGE BAR OF A SCREEN AND SOLAR CLOSURE OR PROTECTION PLANT EQUIPPED WITH SUCH A LOCK DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2441913A1 true EP2441913A1 (en) | 2012-04-18 |
Family
ID=43759800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11184962A Withdrawn EP2441913A1 (en) | 2010-10-15 | 2011-10-13 | Device for blocking a load bar of a screen and closing or sun-protection installation provided with such a blocking device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2441913A1 (en) |
FR (1) | FR2966189B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3032999A1 (en) * | 2015-02-23 | 2016-08-26 | Pierre Christian Charles Andre Wallet | DEVICE FOR AUTOMATIC LOCKING, CONTROL UNLOCKING FOR METAL CURTAINS OR OTHERWISE OF THE SAME TYPE |
IT201800003042A1 (en) * | 2018-02-26 | 2019-08-26 | Florida S R L | LOCKING DEVICE FOR CURTAINS WITH SIDE GUIDES |
DE102019006789A1 (en) * | 2019-09-27 | 2021-04-01 | Stobag Ag | Shading device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2535485A1 (en) * | 1975-06-10 | 1977-02-24 | Goern Geb Koscielny | Roller shutter stop mechanism for clatter prevention - includes angle rails in guide rails engaged by clamp for pressure against opposite shank |
EP0305081B1 (en) | 1987-08-27 | 1991-10-16 | Hunter Douglas Industries B.V. | A retractable window covering assembly |
EP0915214A1 (en) | 1997-11-04 | 1999-05-12 | Windvast N.V. | Sun blind with locking device |
EP1223262A1 (en) | 2001-01-15 | 2002-07-17 | Jakob Lassche | Blocking device |
EP1975367A1 (en) | 2007-03-29 | 2008-10-01 | BUBENDORFF Société Anonyme | Device for protecting an opening of a construction |
-
2010
- 2010-10-15 FR FR1058438A patent/FR2966189B1/en active Active
-
2011
- 2011-10-13 EP EP11184962A patent/EP2441913A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2535485A1 (en) * | 1975-06-10 | 1977-02-24 | Goern Geb Koscielny | Roller shutter stop mechanism for clatter prevention - includes angle rails in guide rails engaged by clamp for pressure against opposite shank |
EP0305081B1 (en) | 1987-08-27 | 1991-10-16 | Hunter Douglas Industries B.V. | A retractable window covering assembly |
EP0915214A1 (en) | 1997-11-04 | 1999-05-12 | Windvast N.V. | Sun blind with locking device |
EP1223262A1 (en) | 2001-01-15 | 2002-07-17 | Jakob Lassche | Blocking device |
EP1975367A1 (en) | 2007-03-29 | 2008-10-01 | BUBENDORFF Société Anonyme | Device for protecting an opening of a construction |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3032999A1 (en) * | 2015-02-23 | 2016-08-26 | Pierre Christian Charles Andre Wallet | DEVICE FOR AUTOMATIC LOCKING, CONTROL UNLOCKING FOR METAL CURTAINS OR OTHERWISE OF THE SAME TYPE |
IT201800003042A1 (en) * | 2018-02-26 | 2019-08-26 | Florida S R L | LOCKING DEVICE FOR CURTAINS WITH SIDE GUIDES |
DE102019006789A1 (en) * | 2019-09-27 | 2021-04-01 | Stobag Ag | Shading device |
Also Published As
Publication number | Publication date |
---|---|
FR2966189A1 (en) | 2012-04-20 |
FR2966189B1 (en) | 2012-11-30 |
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