FR2842559A1 - Window shutter stop comprises L-shaped bar pivoting in brackets fixed to shutter and having roller that engages with wall opening - Google Patents

Abstract

The shutter stop consists of an L-shaped bar (9) able to slide and pivot in brackets (1, 2) fixed to the shutter's inner surface (when closed). When the shutter is open against a wall the bar is slid lengthwise and rotated so that a roller (12) on its free end (11) presses lightly against the side of a wall opening to prevent the shutter from moving. An adjustable ring (13) on the bar allows its maximum travel to be set, and a metal cover (16) clips onto the brackets to conceal the mechanism.

Description

MANEUVERABLE SYSTEM FOR STOPPING A SHUTTER FLAP

  The invention relates to a maneuverable system for stopping a shutter leaf, of the type of systems which are fixed on the shutter in the absence of any sealing in the masonry. There are already known such systems described in particular in patents FR-2,588,605, FR-2,411,946, FR-2,569,439, FR-2,547,852, FR2,214,312, FR-2,406,713 or FR-2,682,307 The latter have the advantage of eliminating, during installation, the sealing operations (necessary operations io when using systems of older type, in which the latching of the shutter is carried out in the vicinity of a edge of it by means of a tab

  swivel sealed in the masonry).

  These systems are generally constituted by a support which is fixed on the shutter near the switchboard of the opening concerned, and by a movable stop member carried by this support so as to be able to slide and pivot relative to the latter. This stop member can thus be arranged, either in a stop position with its end in abutment against the opening panel, or

  in an opposite fold-back position.

  However, known systems of this type have several shortcomings. Firstly, the positioning of such systems must be very precisely adjusted on the shutter if we want the stop member to come to bear correctly against the switchboard in the stop position; in the event of imprecise mounting, this stop device risks stopping too early against the switchboard with a deficient blocking or, on the contrary, pivoting in a vacuum on 3600 without fulfilling its function. There are even cases where these systems cannot be used, in particular when the painting is coated with a very irregular rustic plaster. In addition, before reaching the blocking position, the end of the stop member rubs tangentially against the table over a fairly long distance, which determines rapid wear of the end piece of flexible material which is generally provided for. this end, especially if the painting is covered with a plaster

  (which always has abrasive properties).

  In addition, these systems have a meaning and each system is adapted either to equip a left shutter, or to equip a right shutter, without the possibility of exchange; this drawback increases the number of tools required for manufacturing, increases the necessary stocks and their management cost at resellers, and obliges installers to select the system in each case.

  specific suitable for the shutter to be fitted.

  The present invention proposes to remedy the faults of systems of the type mentioned above (without sealing), and has the essential objective of providing a system which does not require high installation precision and which is capable of operating satisfactorily, without wear, in all cases

presenting in practice.

  Another objective is to provide a system which can

  equip either a left or right shutter.

  To this end, the shutter stop system targeted by the invention comprises: a support adapted to be fixed on the shutter, - a bent stop member composed of a rod carried and guided by the support and a opposite stop part forming an operating handle, said stop member being arranged so that the rod can rotate and slide relative to the support in order to allow the stop part to be moved between an extreme stop position and a position opposite fall back against the flap, - and conjugate stop means arranged on the support and the rod of the stop member, adapted to be able to cooperate so as to define the position

extreme stopping of said rod.

  According to the invention, this maneuverable stop system is characterized in that: - the stop means arranged on the rod of the stop member consist of a ring mounted to slide along said rod, and of means manual actuating clamp capable of locking in translation said ring on said rod, - the stop part of the stop member is provided, at its free end, with a rotary roller mounted so as to be able to rotate freely

  around the longitudinal axis of said stop part.

  By its original characteristics, this stop system can be fixed on the shutter without requiring precise adjustment of the positioning of the support, because the extreme stop position of the stop member is, once

  this fixing carried out, adjustable by means of the stop ring.

  In practice, this design makes it possible to equip the shutters with their maneuverable shutdown system directly on their production sites, which leads to a very appreciable saving of time during the setting up.

  place these shutters on site.

  In addition, when adjusting the extreme stop position of the stop member, on site, the positioning accuracy of the stop ring is not a determining factor conditioning the operation of the stop system. Indeed, due to its rotation on the opening table, the roller of the stop part constitutes a catching member of a possible play, which

  causes a positioning latitude of the stop ring.

  In addition to this backlash function, the rotating roller, by means of an adequate positioning of the stop ring, also makes it possible to obtain a clamping force against the opening panel which guarantees perfect fitting of the shutter against the wall in which this opening is practiced, and

  even in windy conditions.

  This clamping force is also obtained by elastic deformation of the stop part and the rod of the stop member, during the pivoting of said stop member from its folded position against the flap, without having to exert a substantial traction force on the stop part, forming

  operating handle, of this stop member.

  Indeed, during this pivoting, the rotary roller engages and then rolls against the table of the opening, and therefore significantly reduces the effort to be exerted to generate this pivoting because it does not bear against the table that by one of its generators, while leading to obtaining

  a satisfactory clamping force.

  In addition, this rotary roller, precisely because of its rotation but also because of the positioning clearance of the stop ring which it allows, makes it possible to use the stop system according to the invention when the table is coated.

  even a very irregular plaster, of the rustic plaster type.

  Furthermore, due to its design, this stop system, the stop member of which is simply provided with a stop ring and a rotary roller, does not have a mounting direction and can therefore be fitted equally

  a left pane or a right pane without requiring any adaptation.

  According to an advantageous characteristic of the invention, the support consists of two brackets each comprising a wing adapted to be fixed on the flap, and a perpendicular wing pierced with an orifice for guiding the rod of the stop member, and forming a stop wall for limiting the

  longitudinal movement of the stop ring of said stop member.

  In addition, advantageously and according to the invention, the rod of the stop member is provided with a stopper tip mounted at its free end, the role of this tip being to avoid dismantling the system.

  stop before fixing on the shutter and tightening of the stop ring.

  Furthermore, according to another advantageous characteristic of the invention, the means of tightening the ring on the rod of the stop member comprise a radial bore opening through the thread formed in said ring, and

  a clamping screw capable of being screwed into said threaded bore.

  The stop system according to the invention further comprises, advantageously, for aesthetic purposes, a removable hollow cover of shape combined with that of the guide wings of the brackets, adapted to be secured to said brackets so as to mask the portion of the rod of the stop member

provided with the stop ring.

  Other characteristics, aims and advantages of the invention

  will emerge from the detailed description which follows with reference to the appended drawings

  which represent, by way of nonlimiting example, a preferred embodiment. In these drawings: - Figure 1 is an exploded perspective view of the components of a stop system according to the invention, - Figure 2 is a sectional view through a horizontal plane showing a flap fitted with a system stop according to the invention, in the open position folded against a wall of this shutter, before activation of the stop system, - Figure 3 is a sectional view similar to Figure 2 in which the stop system is shown in an intermediate pivoting position, - and Figure 4 is a sectional view similar to Figures 2 and 3 showing the stop system in its shutter locking position

1o against the wall.

  The shutter stop system shown by way of example in the figures is to be installed without sealing by fixing by means of

  simple screws on the flap to be fitted.

  This stop system essentially comprises a support

  1,2 which supports and guides a stop member 9.

  This support which can be produced by injection in synthetic material, consists of two parts 1, 2 each having the shape of a square comprising a first flat wing 3 for fixing intended to be applied against the flap, and provided with holes such only 5 (in the example four in number)

for the passage of fixing screws.

  Each bracket 1,2 comprises, in addition, a second planar wing 4, called a guide wing, perpendicular to the fixing wing 3, pierced with a bore

  6 forming a bearing for the stop member 9.

  This stop member 9 is itself made up of a metal bar of circular section which is bent substantially at 900 to form a rod 10 carried and guided by the support 1, 2, and a stop part 11 forming

  also as an operating handle.

  This stop member 9 further comprises, slidingly mounted along the rod 10, a stop ring 13 threaded on said rod so as to be positioned between the two brackets 1, 2, so as to be able to move over a distance limited by the guide wings 4 of said brackets, a

  times these fixed on a shutter.

  This stop ring 13 is pierced with a radial bore opening threaded, in which is housed a threaded screw without head 14 which allows, during its screwing, to block in translation by tightening said stop ring

  on the rod 10 of the stop member 9.

  This stop member 9 further comprises a roller 12 mounted to rotate freely on the stop part 11, at the free end of the latter. This stop member comprises, finally, a plug 15 covering the free end of the rod 10 and intended to be put in place once the two

  1o brackets 1, 2, and the stop ring 13 threaded on said rod.

  The stop system according to the invention further comprises a cover 16 adapted to cover the guide wings 4 of the brackets 1, 2 once these have been secured to a flap, and to snap in removably onto

said brackets.

  In the example shown, the guide wings 4 of the brackets 1, 2 have a generally triangular shape, and the cover 16 consists of a sheet folded so as to have a section in the general shape of V conjugate with

that of said guide wings.

  Each of the wings of the V formed by this cover 16 is further extended by a longitudinal plane fin 17 extending in a plane parallel to the plane of symmetry of said cover, each of said fins 17 being provided with an internal longitudinal hook d 'snap 18 formed at its edge

longitudinal free.

  With a view to fitting and maintaining this cover 16, each fixing wing 3 of the brackets 1, 2 has two parallel rear rebates such as 7 formed respectively along the lower and upper edges of the rear face of said wing, and adapted to each house a

  snap hooks 18 of said cover.

  In addition, the guide wing 4 of each bracket 1, 2 comprises, itself, a perimeter rebate 8 formed along the edge of the internal face of said wing, and in which is positioned the longitudinal end portion of the cover 16, so that the latter extends in the

  continuity of said guide wings, between the latter.

  The installation of a stop system according to the invention simply requires fixing the two brackets 1, 2 on a shutter, an operation which can advantageously be carried out in the workshop for manufacturing shutters, because the positioning of squares 1, 2 does not condition the

  operation of the shutdown system.

  The only imperative when positioning the brackets 1, 2, is, in fact, simply to arrange the stop system in such a way that, over 1o a portion of the stroke of the rod 10 of the stop member 9, delimited by the stopper of the plug 15 against the guide wall 4 of one of the brackets 1, the stop portion 11 extends beyond the flap, thus allowing to do freely

  turn the stop member 9 to a stroke of 3600.

  Figures 2 to 4 illustrate the operation and

  advantages of the stop system according to the invention.

  In FIG. 2, the flap V is open, and the stop system is in a non-active position similar to that which it occupies when this flap V is closed: the rod 10 of the stop member 9 is in its "retracted" position o the stop part 11 abuts longitudinally against the guide wall 4 of the bracket 2 vis-à-vis, and extends vertically in a folded position against the flap V. Figure 3 shows the stop member 9 in its extreme longitudinal stop position determined by the positioning along the rod of the stop ring 13, and in which: - said stop ring 13 abuts against the guide wall 4 of the square 1 positioned near the vertical edge of the flap V fitted with hinges, - the stop part 1 1 is slightly offset from the opening table, so that the roller 12 slightly encroaches on the

portion of wall bordering this painting.

  In addition, in this FIG. 3, the stop system is shown in an intermediate pivoting position in which the roller 12 initiates

  his engagement on the opening board.

  FIG. 4 shows, finally, the stop system according to the invention in its position where it locks the open flap V, obtained from the intermediate position in FIG. 3, by pivoting the stop part 11 by relative to the axis of the rod 10, until bringing said stop portion to a locking position where it extends substantially horizontally. When pivoting between these intermediate and locking positions, the roller 12 is caused to move by rolling against the table of the opening, which makes it possible to obtain a substantial locking force by elastic deformation of the stop member. 9, without having to exert an effort

  1o important in order to generate this pivoting.

  It should be noted, moreover, that obtaining a satisfactory locking force is not conditioned by a very precise adjustment of

  the locking position of the stop ring 13.

  Indeed, obtaining this locking force which results from the elastic deformation of the stop member, authorizes a clearance x (cf. FIG. 3) for positioning the stop ring 13, depending on the diameter of the roller and

  which in practice can reach several millimeters.

Claims (4)

  1 / - Maneuverable system for stopping a shutter flap (V), making it possible to lock said flap in the vicinity of a wall (M) in an open position, and to release it in order to close it , this system comprising: - a support (1,2) adapted to be fixed on the flap (V), a bent stop member (9) composed of a rod (10) carried and guided by the support (1, 2) and an opposite stop part (11) forming an operating handle, said stop member being arranged so that the rod (10) can 1o rotate and slide relative to the support (1, 2) in order to allow the stop part (11) to be moved between an extreme stop position and an opposite folded-back position against the flap (V), - and conjugate stop means (4, 13) arranged on the support (1, 2) and the rod (10) of the stop member (9), adapted to be able to cooperate so as to define the extreme stop position of said rod, said maneuverable stop system being characterized erized in that - the stop means arranged on the rod (10) of the stop member (9) consist of a ring (13) slidably mounted along said rod, and of clamping means (14 ) with manual actuation capable of locking in translation said ring on said rod, - the stop part (11) of the stop member (10) is provided, at its free end, with a rotary roller ( 12) mounted so that it can be rotated   freely around the longitudinal axis of said stop part.   2 / - Maneuverable stop system according to claim 1, characterized in that the support consists of two brackets (1, 2) each comprising a wing (3) adapted to be fixed on the flap (V), and a wing perpendicular (4) pierced with an orifice (6) for guiding the rod (10) of the stop member (9), and forming a stop wall for limiting movement   longitudinal of the stop ring (13) of said stop member.   3 / - Maneuverable stop system according to claim 2, characterized in that the rod (10) of the stop member (9) is provided with a   stop end piece (15) mounted at its free end.   4 / - Maneuverable stop system according to one of the   claims 2 or 3, characterized in that the means for tightening the ring   (13) on the rod (10) of the stop member (9) comprise a tapped through radial bore formed in said ring, and a clamping screw (14) capable of being screwed into said tapped bore. / - Maneuverable stop system according to one of the   Claims 2 to 4, characterized in that it comprises a removable hollow cover   (16) of shape combined with that of the guide wings (4) of the brackets (1, 2), adapted to be secured to said brackets so as to mask the portion of the   1o rod (10) of the stop member (9) provided with the stop ring (13).