FR2662464A1 - Automatic device for a shutter brake and/or shutter stop allowing an adjustment of the opening of the said shutter by means of a notched plate - Google Patents

Abstract

The subject of the invention is an automatic device for a shutter brake and/or a shutter stop. Device of the type comprising a blocking element fixed to the hinge, on which a spindle of a leaf or panel is articulated, and at least one other element fixed to the panel and intended to cooperate with the said blocking means during the rotation of the said leaf and to be blocked relative to the latter, characterised in that the piece or element (2) arranged on the panel functions as a hook (4) mounted on a flexible blade functioning as a toggle joint, and in that the other piece (3) fixed to the hinge functions as a notched plate (3) with teeth which cooperate with the end of the hook (4) of the flexible blade (2). Shutter brake or shutter stop for panels or leaves of windows, doors or blinds.

Description

 The subject of the invention is an automatic device for shutter brake and / or shutter stop allowing the opening of said shutter to be adjusted by means of a notched plate.

The state of the art can be defined by the following patents
- FR-A-2.629.510: the present invention relates to a wind stop for flaps of shutters. The wind stop according to the present invention is essentially characterized in that it comprises a locking means secured to the hinge on which a hinge of a shutter flap is articulated and at least one element secured to the flap intended to come cooperate with the blocking means during the rotation of said leaf and come to block relative to the latter in the open position and in that the cooperation of the element integral with the leaf with the blocking means during rotation of said leaf creates a relative movement between said element integral with the leaf and the locking means.

 - FR-A-2.608.716: the valve of this device is of the type performing an opening movement composed of a translation and a rotation. The valve is mounted on a straight guide which protrudes at a right angle from a control shaft and is freely rotatable thereon. The movement of the guide around the shaft is limited by a first stop which fixes the closed position of the valve and from which the guide can be moved apart, for the rotation of the flap to the open position, by a toggle.

 - FR-A-2.603.321: the present invention comprises, for this purpose, a device provided with a flat iron bent at right angles, centered and folded at its upper part in the form of a handle.

 By pulling on this handle, to close the shutter, you act on a latch, freeing it from a fitting fixed to the wall and serving as a stop. By pushing the flap back with the same handle, this latch is lowered.

Thanks to a practical notch on it, it snaps into place by sliding on the inclined plane of the fitting, which blocks the flap.

- FR-A-2.547.852: the invention relates to a stop device for the shutter of a window. This device is made up
- a support piece, provided with fixing means on the inside of the shutter
- an L-shaped bracket pierced with a row of orifices and provided with fixing means on the window panel;
- And an elbow-shaped operating arm, articulated at its end around a pivot held in the support piece and provided at its free end with a locking lug intended to be housed in one of the orifices of the 'square.

 - FR-A-2,495,676: the invention relates to a shutter stop comprising a plate fixed along the inner vertical border of the visible face of an open flap, and a handle in the general shape of a beak articulated on the plate so as to be able to be slid and pivoted, in particular in a plane intersecting the plane of the window panel (or door) when the shutter is open, and thus being able to block the latter in this open position by simply pressing the handle on said panel.

 - FR-A-2.496.746: this device consists of a support element intended to be fixed in a wall and on which pivots, relative to a horizontal axis, a U-shaped rocker arm, the interior of which is hollow to receive exactly the support element, the rocker being intended to receive and stop the flap between its vertical arms.

 - FR-A-2.589.225: the device is in particular intended for the automatic control of the opening of the ventilation flaps in the breeding premises. The shutter is kept closed by a hydraulic or pneumatic cylinder and tends to be opened by a counterweight. The pump or compressor is driven by an electric motor. In the event of a power failure, the engine stops and the pressure in the cylinder escapes through a discharge circuit and through the pump or compressor.

The counterweight opens the shutter which provides ventilation to the room.

 - FR-A-2.473.099: the device comprises a body, with a threaded rod for fixing to a wall of a building. The body has a stop for a shutter leaf, and carries at its outer end a movable locking head, articulated on an axis which passes through a notch in the form of a keyhole, formed in the movable head.

This is made up of two parts articulated one on the other by a tightening bolt. The two articulated parts of the movable locking head can thus be joined together in any desired relative angular position.

 - FR-A-2.514.811: this stop comprises only two parts, a housing and a plastic lever.

 The return spring is constituted by a tongue part of the housing actuated by a spout of the lever.

 The axis of rotation, part of the lever can only be placed in the corresponding bearings, parts of the housing, in a particular position, different from all the possible positions in normal operation. This positioning position is also the disassembly position.

 - FR-A-2.529.249: the invention relates to a shutter stop system, of the type comprising a support fixed on the shutter and an elbow stop member, composed of a rod guided by the support and an opposite stop part. The support and the rod are provided with conjugate stop means adapted to allow, on the one hand, to block in rotation the rod in an extreme stop position, on the other hand, to block it in rotation in a position intermediate, finally to release said abutment means from the support by a longitudinal sliding of the rod. The stop part comprises a maneuverable support member, in particular an eccentric shoe, which makes it possible to block said part against the opening panel or, on the contrary, to release it.

 - FR-A-2,459,863: this device comprises a base provided with two sets of wings which each receive an arch: the arch which can pivot on 2700 and the arch which can pivot on 1800.

 To obtain the shutter stop position - open position shutter - it is enough to rotate 2700 of the arch which thus forms an approximate angle of 900 relative to the shutter towards the inside of the masonry table and then rotate the arch at 1800 which thus very effectively blocks the arch against the masonry table.

In the intermediate position, this device forms a pull handle.

 The device according to the invention serves as a shutter brake when opening and closing the leaves, but also as a shutter stop with the opening chosen by the user. This device is automatic, it acts automatically when the user opens and closes the shutters.

The latter must simply act in force to unlock or block the shutter, louver or door leaf.

 The numerous patents cited above are specific to such or such applications.

 They often require the user to operate a rod or lever to block or unblock the shutter stop. These devices are often simple shutter stops which only act when the shutter is fully open. it is not possible to leave the leaves ajar in a desired position. Access to these shutter stops is sometimes dangerous for children because, to access them, they must lean very strongly at the window. They require a hole in the wall to fix the shutter stop support.

 With use, the flap changes position on its hinges, the flap stop is no longer in place. These modifications require adjustment work to keep the mechanism working over time.

 The device according to the invention makes it possible to position the two decks of a shutter (door or louver) in various closed, ajar, 300, 450 or fully open positions.

 In each position, the apron is fixed.

 To this end, the device according to the invention is of the type consisting of two independent parts, one arranged on the apron, the other is taken between the body of the hinge and the eye of the hinge, characterized in that the piece arranged on the apron acts as a hook mounted on a flexible blade acting as a knee switch and the other part acts as a notched plate with teeth which cooperate with the end of the hook of the flexible blade.

 Said plate is taken in a vice between the body of the hinge and the rolling of the hinge and therefore holds by the own weight of the deck. The second moving part which is a spring is screwed onto the apron.

 The flexible blade which acts as a spring toggle with its hook at one end is provided, at its other end, with holes for the passage of fixing screws which are fixed in the apron.

 The plate is notched, it has notches or teeth arranged radially which are symmetrical relative to the median plane of said plate and allow the right or left use on the flap and all the intermediate positions and this, depending on the notches of the plate .

 A central hole allows the positioning of said plate once the leaf removed.

 The rear face of the plate is pierced with tapped holes allowing angular adjustment of the plate relative to the axis of the hinge.

 The flexible spring blade which acts as a toggle is screwed onto the apron on the front face or possibly on the edge. It exerts continuous pressure on the edge of the notched plate. This flexible blade is permanently arched and acts like a toggle.

 To bring the deck back from the open position, the user must exert a force greater than the intermediate rotation force, which guarantees good support in normal wind conditions.

 During the rotation of the deck around the axis of its hinges, the flexible blade which acts as a spring is successively blocked in each notch or between two teeth to the desired position.

 To unlock the apron, simply increase the force during rotation.

 In the fully open position, the system acts as a shutter stop and therefore eliminates the use of a conventional stop, the release of the shutter stop outside the window is therefore eliminated.

 The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.

 Figure 1 is a plan view of the device according to the invention showing the two parts that compose it.

 Figure 2 is a view of the device according to Figure 1 but where according to arrow F1, the deck is actuated in rotation to open the shutters.

The arrows F2, F3 highlight the action of the flexible blade acting as a toggle and its hook in the notches of the plate.

 Figure 3 is a view according to Figure 1 but where the deck is almost in the fully open position and where the hook is in the last notch of the plate.

 Figure 4 is a top view of the plate.

 Figure 5 is a front view of the plate.

 Figure 6 is a schematic view of the device in place and seen from the side.

 Figure 7 is a schematic view of the flexible leaf spring seen from above.

 Figures 8 and 9 show the shape that can take the flexible blade when a rotational force is exerted on the deck.

 The device 1 consists of two elements 2, 3.

 The element 2 is a flexible spring leaf which forms a hook 4 at one end while the other end 5 is provided with holes which allow fixing by screws 6 in the deck 7.

 Element 3 is a notched plate.

 The hook 4 comes opposite the notches of the plate 3. The plate 3 may for example comprise eight notches 8 arranged radially and symmetrical with respect to the median plane of said plate so as to allow right or left use on the shutter and all the intermediate positions and this, as a function of the notches or notches 8 of the plate 3.

 A central hole 9 allows the establishment of the plate 3 once the leaf removed.

 The plate is positioned on the hinge 10 which is sealed to the wall 11.

 The rear face 12 of the plate 3 is pierced with tapped holes allowing angular adjustment of the plate relative to the axis of the hinge 10.

 REFERENCES 1. Device 2. Element, flexible blade 3. Element, notched plate 4. End which forms a hook 5. End provided with holes 6. Screw 7. Apron 8. Notches 9. Central hole 10. Hinge 11. Wall 12. Back side of the plate

Claims (5)

 1. Automatic device for shutter brake and / or shutter stop for aprons or shutters of shutters, doors, louvers of the type comprising a locking element secured to the hinge on which a hinge of a leaf or apron is articulated. at least one other element integral with the deck intended to come to cooperate with said blocking means during the rotation of said leaf and to come to block relative to the latter characterized by the fact  that the part or element (2) arranged on the apron acts as a hook (4) mounted on a flexible blade acting as a knee switch and that the other part (3) integral with the hinge (10) acts as a notched plate (3 ) with teeth which cooperate with the end of the hook (4) of the flexible blade (2).  2. Device according to claim 1 characterized by the fact  that the notched plate (3) is taken in a vice between the body of the hinge (10) and the rolling of the hinge.  3. Device according to claim 1 characterized in that  that the hook (4) comes opposite the notches of the plate (3); the plate (3) has notches (8) arranged radially and symmetrical with respect to the median plane of said plate so as to allow right or left use on the flap and all the intermediate positions, depending on the notches.  4. Device according to any one of claims 1 or 3 characterized in that  qu a central hole (9) allows the establishment of the plate (3) once the leaf removed; the plate is positioned on the hinge (10) which is sealed to the wall (11); the rear face (12) of the plate (3) is pierced with threaded holes allowing angular adjustment of the plate relative to the axis of the hinge (10).  5. Device according to claim 1 characterized in that  that the flexible spring leaf forms, at one end, a hook (4) while the other end (5) is provided with holes which allow fixing by screws (6) in the deck (7).