EP0841449B1 - Monodirectional esplagnolette - Google Patents

Abstract

The long bolt mechanism consists of a housing (1) fitted into a recess in the door or window frame and containing a rotary toothed plate (14) which can be turned through 90 degrees by a handle and a bar (15) with two studs (8) connected to the bolts and a rack (16) meshing with the teeth (17) of the plate (14). The greatest diameter of the toothed plate (14) is more or less equivalent to the width of the mechanism's housing, which has an aperture (18) in one side wall to receive the edge of the plate. The mechanism also has a spring-loaded vane (21) which lies parallel to the direction of the rack's travel and is aligned between the plate's centre of rotation and the points where it meshes with the rack.

Description

The present invention relates to a fitting for opening with unidirectional lever.

It is known to equip openings with profiles, such as doors, windows, patio doors or the like, with a cremone bolt adapted to move elements of locking, such as rollers, tilting bolts, for put these in engagement with the frame keepers.

These cremones comprise in known manner a cremone bolt housing housing the movement mechanism rods. The cremone bolt and the rods are fixed in grooves of uprights and / or crosspieces depending on the type of opening of the opening. A headrest, flush with the profile groove, possibly masking the whole mechanism when the groove is made in soft materials, such as wood or PVC.

The case includes a nut ordered in 90 ° rotation by one handle per example, and an easel supporting two fixed lugs respectively to two rods of the lever. This easel generally has a cooperating rack with teeth arranged on a peripheral portion circular of the follower.

It is easy to understand that the displacement in rotation, by means of the handle, of the follower around its axis allows to translate the bridge and by the same token, the rods of the lever.

The gearbox to be housed in the groove made in the opening, the width and the thickness of this case must remain less respectively to the depth of the groove in the plane of the sash and the width of the groove in the plan of the sash of the opening.

The faces of the case, supporting the follower adjacent to the rack of the easel, so have a width, in a transverse direction of the housing, limited.

This is all the more important since, by material saving, window manufacturers and analogs tend to reduce the cross section of the uprights and sleepers, especially their width in the plane of opening.

The easel, extending parallel and adjacent to a side wall of the housing, has usually thick enough to support mechanical forces generated by the meshing follower in his rack. The follower, housed between this easel and the other side wall of the case, has generally a diameter between half and two thirds of the width of the housing.

Patent application EP 0 167 386 describes a locking device in which the follower has a diameter corresponding to three quarters of the width of the housing.

Patent application DE 44 09 420 describes a other locking device in which the follower has a diameter corresponding substantially to the width of the housing. However, this device is rotationally controlled at an angle of 180 °.

This small dimension of the follower has the effect to create a relatively small stroke of the bridge. This race is transmitted or resumed by the rods of the cremone bolt which has locking elements. The latter, which may be of the pebble type, penetrate keepers able to accommodate these elements on the race displacement of the rod.

However, in known manner, the strikes have a opening that allows the passage of the element of locking, then a ramp secured to a wall on which rolls or slides the locking element. This the latter is insured when the roller is properly engaged the back of this wall.

The shorter the rod travel, plus the positioning of the strike plate when mounting the hardware must be precise. This constraint is uncomfortable for carpenters, manufacturers of windows or other openings and can generate over time malfunctions.

The aim of the present invention is to solve the disadvantages mentioned and to propose a fitting to unidirectional cremone bolt which can be applied to all types of existing openings.

The fitting for sash contemplated by the invention includes a one-way cremone bolt and a gearbox cremone bolt adapted to be housed in a groove opening it, this case including a nut controlled by rotation through an angle of 90 ° by a handle, a easel supporting two lugs fixed respectively to two rods of the cremone bolt and including a rack cooperating with teeth arranged on a circular peripheral portion of the follower on an arc 90 ° circle.

According to the invention, the largest diameter of the follower is substantially equal to the interior width of the case, and the case includes a light in a longitudinal side wall, a second portion circular device of the follower having a radius substantially equal to the distance between the axis of the follower of this side wall of the housing and adapted to circulate in rotation in said light, the base of the easel extending substantially parallel to a side wall of the case, the base of the easel comprising an offset portion, supporting the rack and extending into a groove formed on a inner face of the side wall of the housing, this groove having a length in the longitudinal direction of the housing at least equal to the stroke of the bridge.

The lever of gearbox of cremone bolt thus uses maximum possibilities in width of this case that is to say the transverse dimension of the case taken in the plan of the opening when the case is in place in the groove.

By thus increasing the diameter of the follower, the easel race and therefore rods of the cremone bolt, is thus increased.

By thus shifting the active surface of the rack inside a wall groove side of the case, we further increase the space available for the follower and thus the stroke of the cremone rod.

By larger diameter of the follower, the greatest distance between two points peripheral of the follower aligned with the center of rotation of the latter.

The arrangement of the teeth on a 90 ° arc allows the follower to stay in contact with the rack on the entire rotation of the follower operated by the handle.

The light of the case allows to get rid of internal dimensions of the housing to further increase the diameter of the follower and consolidate it so that it can withstand the mechanical forces exerted on it during its rotation.

According to a preferred version of the invention, the easel is substantially U-shaped in one plane parallel to an outer face of the case, the branches of the easel supporting the pins and the base of the easel supporting the rack, the follower being housed between the branches of the easel.

The axis of drive of the rod in front imperatively correspond to the center of the groove of the profile, by configuring the U-shaped bridge, we can offset the axis of the follower and therefore shift it by the rod drive axis, which allows respect the reversibility of the cremone bolt case.

Indeed, the asymmetrical arrangement of the center of the follower allows reversibility which, as the case may be move the center of the follower closer or further away from the edge of opening. In a remote position, the use of a handle with rosette is possible. Conversely, a approximation of the axis of the follower to the edge of the sash allows the installation of a handle without rosette, with a thin barrel.

In addition, thanks to the U-shape of the easel, the minimum size of the latter, allowing maximum dimensions for the follower, is respected.

Other features and advantages of the invention will appear further in the description below.

• la figure 1 est une vue de face d'un boítier de crémone conforme à l'invention;
• la figure 2 est une vue schématique de côté illustrant le montage du boítier de crémone à la tringle;
• les figures 3 et 4 sont des vues schématiques en coupe longitudinale du boítier de crémone illustrant la course des tringles de crémone;
• la figure 5 est une vue de face du mécanisme de crémone logé dans le boítier;
• la figure 6 est une vue en coupe selon la ligne VI-VI à la figure 5;
• la figure 7 est une vue en coupe selon la ligne VII-VII à la figure 5;
• la figure 8 est une vue en coupe longitudinale du boítier illustrant la crémone dans une première position;
• la figure 9 est une vue analogue à la figure 5, le mécanisme de crémone étant dans une seconde position;
• la figure 10 est une vue en coupe analogue à la figure 6, le mécanisme de crémone n'étant pas représenté;
• la figure 11 est une vue analogue à la figure 7, le mécanisme de crémone n'étant pas représenté; et
• la figure 12 est une vue en coupe longitudinale du boítier analogue à la figure 8, la crémone étant dans une seconde position.

In the appended drawings, given by way of nonlimiting examples:

• Figure 1 is a front view of a cremone bolt housing according to the invention;
• Figure 2 is a schematic side view illustrating the mounting of the gearbox to the rod;
• Figures 3 and 4 are schematic views in longitudinal section of the cremone bolt housing illustrating the race of the rods;
• Figure 5 is a front view of the cremone mechanism housed in the housing;
• Figure 6 is a sectional view along line VI-VI in Figure 5;
• Figure 7 is a sectional view along line VII-VII in Figure 5;
• Figure 8 is a longitudinal sectional view of the housing illustrating the cremone bolt in a first position;
• Figure 9 is a view similar to Figure 5, the cremone mechanism being in a second position;
• Figure 10 is a sectional view similar to Figure 6, the cremone mechanism is not shown;
• Figure 11 is a view similar to Figure 7, the cremone mechanism is not shown; and
• Figure 12 is a longitudinal sectional view of the housing similar to Figure 8, the cremone bolt being in a second position.

Referring first to Figures 1 and 2, the opening fitting according to the invention comprises a gearbox housing 1 whose outer face 2 is illustrated in figure 1.

This fitting is in particular intended for tilting type sashes, requiring fittings with so-called perimeter cremones.

The outer face 2 includes an opening central 3, arranged in a median transverse plane of the case 1 and adapted to receive a follower housed in the housing as will be described below; the follower receives in its center a square 4, crossing or not, connecting a handle (not shown) to the mechanism.

The square can be secured to the follower or preferably removable to allow adaptation of any type of handle.

The outer face 2 of the housing comprises also two circular openings 5, aligned with the central opening 3, for fixing, by means of screw for example, the housing in the bottom of the groove of the opening profile.

It can also be equipped with two other circular openings 6, of larger dimensions important, allowing attachment to the housing 1 a handle with rosette.

The other exterior face 2 'of the housing (see Figure 8) is arranged parallel to this first side 2 and also includes facing openings openings 3, 5 and 6 previously described.

The outer face 2 further comprises two longitudinal lights 7, extending in the direction longitudinal X-X of housing 1 and adapted respectively the passage of a lug 8 engaged with a rod 9 as illustrated in Figure 2 and secured to a easel described below.

The lugs 8 are moved in translation in the longitudinal lights 7 by a mechanism, described below, housed in box 1.

The length of the longitudinal lights 7 therefore corresponds substantially to the travel of the lugs 8.

The translational movement is then transmitted to the rods 9, as shown in FIGS. 3 and 4, the end positions of the lugs 8 in the lights 7 corresponding respectively to a position locking and unlocking the sash.

The rods 9 thus move between the face outer 2 of the housing and the bottom 10 of the groove opening. This groove bottom 10 includes openings 11, 12, 13 opposite the openings 3, 5 and 6 of the face outer 2 of the housing, to allow respectively the passage of square 4 of the follower and the means of fixing the housing 1 and the handle.

The mechanism for translational movement of rods 9 will now be described with reference to Figures 5 to 12.

Figure 5 illustrates the locking mechanism housed in case 1.

The housing 1 comprises a follower 14 controlled by rotation through an angle of 90 ° via a square 4 mounted in a handle or stand.

An easel 15 supports the two pins 8 and includes a rack 16 cooperating with teeth 17 arranged on a circular peripheral portion 14a of the follower 14.

The latter has a second portion circular device 14b which extends substantially over an arc of 270 °.

The first circular peripheral portion 14a has teeth on a complementary arc 90 °.

The follower 14 thus has two portions circular peripherals 14a and 14b, centered on the axis of rotation Y-Y of the follower, the radius of the first peripheral portion 14a being greater than the radius of the second peripheral portion 14b.

The follower 14 is disposed in the housing of so that the radius of the second peripheral portion circular 14b is substantially equal to the distance separating the axis of the follower Y-Y from a side wall longitudinal of the housing 1, this side wall 1a comprising a light 18 in which the second circular peripheral portion 14b of the follower 14 can circulate in rotation.

By convention, this side wall will be called face wall of the housing and the other side wall longitudinal will be called bottom wall 1b of the housing 1.

The largest diameter of the follower 14, that is to say, in the illustrated embodiment, the sum of the radius of the first circular peripheral portion 14a fitted with teeth 17 and the second portion circular device 14b, is substantially equal to the width of the housing 1 that is to say the distance between the internal faces of the faceplate and bottom walls la, 1b of the housing 1.

The dimensions of the follower 14 thus result of a compromise between a toothed peripheral portion 14a of a sufficiently large radius to develop a large stroke of the bridge 15 driven by the rack 16 and a smooth peripheral portion 14b of a sufficiently large radius to consolidate the follower 14 and withstand the mechanical forces exerted on this one during its rotation and its gear in the rack 16.

The distance from the center of follower 14 from edge of the sash profile must be sufficient to avoid overflow of the handle body beyond the opening profile.

The first circular peripheral portion 14a has teeth on a quarter of a circle, so that be operational for the entire trip in rotation of the follower 14, of the end teeth 17 ′, delimiting this circular peripheral portion 14a, extending respectively along two axes perpendicular, intersecting in the center of the follower 14.

The easel 15 is substantially -U-shaped in a plane parallel to an outer face 2 of the case 1, the branches of the easel supporting the lugs 8 and the base of the easel supporting the rack 16, the follower 14 being housed between the easel branches 15.

The asymmetrical arrangement of the center of the follower allows reversibility which, as the case may be, approximates or move the center of the follower away from the edge of the profile. Advantageously in a remote position for example, the handle with rosette can be used. AT conversely a reconciliation can allow the installation of a handle without rosette, with thin barrel.

Advantageously, the asymmetry allows the housing to lend themselves to various assemblies depending on the position of the groove in the profile.

In addition, right or left reversibility is acquired when the follower can accommodate a square on one and / or the other of its faces or if the center of the follower is located halfway up the housing. he it suffices, in the latter case, to pivot the handle and the 180 ° square to obtain the application opening to left or right.

The base of the easel 15 extends parallel to the second side wall 1b of the housing 1, called the wall of bottom, and has an offset portion 19 supporting the rack 16.

This offset portion 19 extends in a groove 20 formed on an internal face of the bottom wall 1b of the case 1.

The groove 20 has a length whose direction longitudinal X-X of the housing 1 at least equal to the easel stroke 15 and is adapted to accommodate this easel 15 over the entire length of its stroke.

As illustrated in Figures 6 and 7, the base of the bridge 15 has an L-shaped cross section, the base of the L being perpendicular to the outer face 2 of the housing 1 and supporting the rack 16. The branch of L extends in a plane parallel to the outer face 2 of the housing, the follower 14 being housed between this face 2 and the L branch of the easel 15.

This gives an easy-to-install fitting, thanks to a sufficiently large stroke of the rods 9 to allow positioning tolerance of the fitting when mounted in the profile opening.

This advantage is particularly important for perimeter cremones, because everything is square suffers when installed in the profiles of sashes and crosspieces of the sash, warping and deformation.

By way of nonlimiting example, the width of the case 1 is between 33 and 36 mm and from preferably equal to 35.5 mm. The radius of the first toothed peripheral portion 14a is substantially equal to 17.8 mm thus allowing a 28 mm stroke, against about 17 mm in conventional fittings.

The radius of the second peripheral portion circular 14b of the follower is between 15 and 17 mm.

Thus, the carpenter can free himself from the exact positioning of the strikes on the frame and consequences due to the deformation of a opening to use.

The housing further includes an elastic blade 21 fixed at its ends to a face of the housing 1, such as the outer face 2 thanks to fixing studs 22.

The follower 14 comprises two elements forming finger 23, arranged at 90 ° in a centered arc on the axis of rotation Y-Y of the follower 14 and the blade elastic 21 comprises, substantially in the middle, a notch 24, of complementary shape to the elements forming finger 23.

The distance between this notch 24 from the center rotation of the follower 14 is substantially less than the distance between the finger elements 23 of the center of rotation of the follower 14.

These finger elements 23 thus come lodge in the notch 24 at the end of the rotary travel of the follower, at an angle of 90 °, in a direct direction or indirect around its axis of rotation Y-Y, corresponding to the extreme locking positions and unlocking the cremone bolt.

The finger elements 23 thus put the elastic blade 21 in tension, against the restoring force elastic of the blade tending to bring this blade 21 in a direction confused with the right passing through its ends fixed to the housing 1.

The elastic stress is felt by the user through the handle, so that the unlocking / locking indexing, i.e. the end of travel of the rods 9 and the easel 15, becomes clearly noticeable.

This elastic blade 21 thus makes it possible to index the movement of the mechanism, directly at the follower 14, freeing himself from mechanical play inevitably existing between the different rooms in movement of the mechanism.

Preferably, the elastic blade 21 extends in a direction substantially parallel to the direction of X-X translation of the rack 16 of the bridge 15, the notch 24 of the elastic blade 21 being aligned with the center of rotation of the follower 14 and the point of the teeth 17 of the follower 14 in the rack 16.

The follower 14 includes a crown concentric 25, extending in a plane parallel to the plan containing the first and second portions peripherals 14a, 14b, the finger elements 23 extending from this crown 25, each being aligned with an axis passing through the center of rotation of the follower 14 and an end tooth 17 'of the first circular peripheral portion 14a.

The follower 14 is made integral with the faces exterior and interior of the housing 1 by means of circular lights 26, 27 as illustrated in the figure 11 in which the faces 28, 29 of the follower 14, formed of two studs 28, 29 substantially cylindrical, centered on the axis of rotation Y-Y of the follower 14.

With reference to Figures 5 and 8 on the one hand and 9 and 12 on the other hand, the functioning of the locking and unlocking of the lever easily understands. The rotation of the follower 14 by a quarter clockwise on the FIG. 5 has the effect of moving the rack 16, and thereby the easel 15, the lugs 8 and the rods 9 from right to left of the figure.

The end of the movement is indexed by the insertion a finger element 23 in the notch 24 of the elastic blade 21.

Reverse rotation from position illustrated in figure 9 has the opposite effect of moving the rods 9 from left to right of the figure 1.

Of course, many modifications can be made to the example described above without depart from the scope of the invention as defined in claims.

Claims (4)

1. Fittings for the opening panel of a door or window, which comprise a monodirectional espagnolette and an espagnolette casing (1) designed to be accommodated in a slot in the opening panel, said casing (1) including a tumbler (14) which is driven in rotation through an angle of 90° by a handle, a support member (15) supporting two studs (8) which are respectively fixed to two rods (9) of said espagnolette, and a rack (16) which cooperates with teeth (17) disposed on a circular peripheral portion (14a) of the tumbler (14) over a circular arc of 90°, characterized in that the largest diameter of the tumbler (14) is substantially equal to the internal width of the casing (1) between a first side wall (1a) and a second side wall (1b), and in that said casing (1) has an aperture (18) formed in the first longitudinal side wall (1a), a second circular peripheral portion (14b) of the tumbler (14) having a radius which is substantially equal to the distance separating the axis (Y-Y) of the tumbler (14) from said side wall (1a) of the casing (1) and being designed to move so as to rotate in said aperture (18); the base of the support member (15) extending substantially parallel to the second side wall (1b) of the casing (1) and having an offset portion (19) which supports said rack (16) and extends into a groove (20) formed on an inner face of said side wall (1b) of the casing (1), said groove (20) having a length in longitudinal direction of the casing (X-X) which is at least equal to the course of the support member (15).
2. Fittings according to Claim 1, characterized in that the support member (15) essentially has the shape of a U on a plane which is parallel to an outer face (2) of the casing (1), the sides of the support member (15) supporting the studs (8) and the base of the support member (15) supporting said rack (16), the tumbler (14) being accommodated between the sides of the support member (15).
3. Fittings according to Claim 1 or 2, characterized in that the tumbler (14) has two elements forming fingers (23) which are disposed at 90° along a circular arc centred on the axis of rotation (Y-Y) of the tumbler (14); in that the casing (1) also includes an elastic strip (21) which is fixed at its ends to a face (2) of the casing (1) and has a notch (24) which is complementary in shape to the elements forming fingers (23), the distance separating said notch (24) from the centre of rotation of the tumbler (14) being substantially less than the distance separating the elements forming fingers (23) from the centre of rotation of the tumbler (14).
4. Fittings according to Claim 3, characterized in that the elastic strip (21) extends in a direction which is substantially parallel to the direction (X-X) of translation of the rack (16) of the support member (15), the notch (24) in the elastic strip (21) being aligned with the centre of rotation of the tumbler (14) and a meshing point of the teeth (17) of the tumbler (14) in the rack (16).

Images