EP0067075B1 - Locking handle for a sliding wing with semi-automatic locking - Google Patents

Description

The present invention relates to a closing handle for a leaf mounted sliding in a frame, comprising a profile fixed to the leaf, in which is articulated, by means of a cylindrical bead placed in a groove-shaped housing, another profile circumferentially stressed, by elastic means interposed between the two profiles, towards a position in which a locking element, such as a pawl, secured to the movable profile normally comes, for the leaf closed position, automatically engaged with an element of conjugate locking, fixed to the frame, the elastic means being capable of being neutralized under the effect of a device for retaining the movable profile immobilizing the latter in a separable manner in a position in which, for the closed position of the leaf, the locking elements are out of engagement.

Such a handle (US-A-3,161,923), the locking of which is said to be semi-automatic, meets a safety condition which is not fulfilled in the handles with so-called automatic locking, that is to say of which the arrangement is such that it is not possible to prevent the leaf from locking in the closed position. In this case, in fact, if the leaf gives access, for example, to a balcony or a terrace, the person who has crossed the open leaf may find themselves, so to speak, trapped outside when an untimely maneuver, for example by a child, close the leaf by locking it in an almost irreversible way. In semi-automatic locking handles, prior manual action on the retainer makes the locking spring inoperative and therefore eliminates the risk of unwanted locking.

In known handles with semi-automatic locking, the retaining device causes mechanical complications and makes it necessary to have protruding members on the handle, such as buttons or control levers which, being visible, are not appreciated by architects and users.

the object of the invention is to provide a closing handle whose construction is simpler and more aesthetic than the known handles.

To this end, the invention provides a closing handle of the type mentioned at the start, characterized in that the retaining device provided for neutralizing the circumferential elastic means comprises, in one of the profiles, a radial cavity forming a catch for a conjugate radial boss provided on the other profile, and in that the groove, in section, has an oval-shaped profile allowing the movable profile, not only to pivot, but also to undergo movements in a transverse direction to the joint, thanks to which a relative sliding, both circumferential and radial, can take place between one of the edges of the cavity and the boss of the retaining device when a corresponding angular displacement is printed manually on the movable profile.

The combination according to the invention, essentially constituted by a bore of oval section for mounting the articulation axis in the form of a bead and by a retainer of the boss and stop notch type for the temporary immobilization of the movable profile , allows to execute almost all the elements necessary for the neutralization of the automation during the factory forming of the profiles, for example by spinning if their material is based on aluminum.

The only additional mechanical element to be provided is an elastic means with radial action which urges the movable profile in a direction corresponding either to locking, in the case where the retaining device is inactive, or to tightening the boss in the cavity forming notch. stop if the retainer occupies its active position keeping the conjugate locking elements out of engagement.

It is moreover possible, according to an advantageous arrangement, to use a single spring with double action, circumferential and radial, comprising for example a helical winding to urge the movable profile towards its locking position and a part in the form of an isosceles triangle extending one of the ends of the winding, compressed between two radially spaced anchoring zones, provided on the respective sections, in which the vertex of the triangle adjacent to the equal sides and the base opposite this vertex are supported.

As the spring itself the boss, provided for example on a circumferential wing of the movable profile, and the cavity forming a catch notch are located entirely in the interior space comprised between the two profiles, so that the handle following the The invention has the same plain appearance as a purely automatic locking handle, without any visible projecting or recessed part.

Additional embodiments are characterized in dependent claims 3, 4 and 6 to 10.

• la figure 1 est une vue en coupe shématique d'une porte-fenêtre constituée de profilés à base d'aluminium, dans laquelle est incorporée une poignée de fermeture suivant l'invention ;
• la figure 2 est une vue en élévation de la poignée de fermeture de la figure 1 ;
• la figure 3 est une vue en coupe suivant la ligne 3-3 de la figure 2 ;
• la figure 4 est une vue du ressort utilisé dans la poignée ;
• la figure 5 est une vue en coupe analogue à la figure 3, d'une variante.

The invention will be explained during the description which follows, with reference to the accompanying drawings, in which:

• Figure 1 is a schematic sectional view of a French window made of aluminum-based profiles, in which is incorporated a closing handle according to the invention;
• Figure 2 is an elevational view of the closing handle of Figure 1;
• Figure 3 is a sectional view along line 3-3 of Figure 2;
• Figure 4 is a view of the spring used in the handle;
• Figure 5 is a sectional view similar to Figure 3, of a variant.

Figure 1 shows a French window with two sliding leaves, 1, 2, of which the frame 3 is fitted and is fixed in a rebate of a concrete wall 4. One of the leaves, the right leaf 2 of FIG. 1, has a recessed closure 6 which does not is open, in principle, only for cleaning purposes. Access to the outside is normally done by opening the left leaf, 1, which for this purpose comprises a closing handle 7 mounted on the surface, with semi-automatic locking obtained by hooking a pawl 8 on a keeper 9 fixed on the inside face of the frame 3.

As can be seen more clearly in FIG. 3, the closing handle 7 comprises a profile 11 of general shape in an angle at an obtuse angle, one of the wings 12 of which is bolted on the surface, at 13, on a profile 14 of the chassis leaf 1 and whose junction zone 16 with the other wing 17, radial, has an axial groove 18 in which is engaged a bead 19 constituting a hinge pin carried by another movable profile 21. The bead 19 is formed at one end of a radial wing 22 of the profile 21, which forms a body with a curved circumferential wing 23 covering the end 24 of the wing 17 of the fixed profile 11.

On the side opposite to this wing 17 the pawl 8 extends from the radial wing 22 of the profile 21 and carries at its end a spout 26 which can be kept engaged with the keeper 9 in the form of a hook, for the position closed leaf 1, under the double elastic action of a spring 27 comprising, on the one hand a helical winding 28 whose respective ends are supported on the radial wings 17, 22 of the profiles and which tends to rotate in the direction clockwise, the profile 21 around the articulation defined by the bead 19 and the groove 18, on the other hand a triangular part 29 which extends the end of the winding 28 supported on the radial wing 17 of the fixed profile, and which exerts on the mobile profile 21 an essentially radial thrust holding the bead 19 in the cylindrical bottom 18a of the groove 18.

As shown in FIG. 4, the part 29 has the shape of an isosceles triangle, the apex 31 adjacent to the equal sides of the triangle is engaged and retained in a groove 32 located approximately to the right of the pawl 8 and relatively close to the bead 19 on the wing 22, and the base of the triangle 33 which is opposite the apex 31 and which consists of two segments 33a, 33b, is engaged in a groove 34 adjacent the end 24 of the radial wing 17 of the profile fixed 11.

To prevent the locking elements constituted by the pawl 8 and the keeper 9 from engaging for the closed position of the leaf 1, there is provided, according to the invention, a retaining device which neutralizes the circumferential action of the winding 28 of the spring 27 and which keeps the pawl 8 free from the keeper 9. This device comprises on the inner face of the circumferential wing 23 of the movable profile 21 a boss 36 which, under the effect of a manual push exerted in the opposite direction to that of clockwise on the movable profile 21, can engage in a conjugate groove 37 formed in the edge of the wing 17 of the fixed profile 11. The boss 36 can slide radially and axially in contact with the adjacent edge 37a of the groove 37 when the profile 21 is moved manually in an anti-clockwise direction, thanks to the fact that the cooperation of the boss 36 with the groove edge 37a prints the profile 21 a travel t radial, against the triangular part 29 radially compressed by the spring 27, made possible by the oval shape 18b of the housing 18 of the bead 19.

When the edge 37 has been crossed by the boss 36 the latter falls into the groove 37 and remains there under the action of the part 29 of the spring 27. The bead 19 then comes back into contact with the cylindrical part 18a of the groove 18 and the spout 26 is released relative to the keeper 9 ..

It will be noted that the movable profile 21 is retained axially with respect to the fixed profile 11 by virtue of a notch 38 formed in the bead 19 opposite the cylindrical part 18a of the groove 18, through which a headless screw 39 engaged in a threaded orifice 41 executed in the junction region 16, between the two wings 12, 17 of the fixed section. The spring 27 is itself retained axially relative to the fixed profile by a notching or crushing of the edge 34a of the groove 34, which punctually punctures the segments 33a, 33b of the base 33 of the triangular part 29 with radial elasticity.

The reestablishment of the automatic locking can obviously be obtained from the position for which the boss 36 is retained in the groove 37 by a manual action exerted clockwise on the movable profile 21.

In the variant of FIG. 5, which represents the position of the two profiles 111, 121, corresponding to the neutralization of the automatic locking obtained by the active positioning of the retaining device, the boss 136 instead of forming a simple bulge as in Figure 3, on the circumferential wing 123 of the movable profile 121, has the shape of a cylinder provided in the junction region between the wings 122 and 123, which cooperates with a complementary groove 137-disposed laterally at the end 124 of the radial wing 117 of the fixed section.

The operation of the handle of FIG. 5 is identical to that which has been described with reference to FIG. 3.

Claims (10)

1. A closing handle (7) for a panel (1) slidably mounted in a frame (3), comprising a section member (11, 111) fixed to the panel, in which there is pivotally mounted, by means of a cylindrical bead (19) placed in a cavity in the form of a groove (18), another section member (21, 121) biased circumferentially, by elastically yieldable means (29) interposed between the two section members, toward a position in which a locking element, such as a pawl (8) connected to the movable section member, normally becomes for the closing position of the panel, automatically engaged with a conjugate locking element fixed to the frame, the elastically yieldable means being capable of being neutralized under the effect of a retaining device for the movable section member which immobilizes the latter in a separable manner in a position in which, for the closing position of the panel, the locking elements are out of engagement, characterised in that the retaining device provided for neutralizing the circumferential elastically yieldable means comprises in one (11, 111) of the section members a radial cavity (37, 137) constituting a stop step for a conjugate radial boss (36, 136) provided on the other section member (21, 121), and the groove has a sectional shape (18a, 18b) of oval appearance enabling the movable section member not only to pivot but also to effect movements in a direction transverse to the pivotal connection, whereby a relative circumferential and radial sliding can occur between one of the edges (37a) of the cavity (37, 137) and the boss (36, 136) of the retaining device when a corresponding angular displacement is imparted manually to the movable section member.

2. A handle according to claim 1, characterised by an elastically yieldable means (29) having a radial action which biases the movable section member (21) in a direction corresponding either to the locking, in the case where the retaining device is inoperative, or to the clamping of the boss (36, 136) in the cavity forming a stop step (37, 137) if the retaining device occupies its operative position in which it maintains the conjugate locking elements (8, 9) out of engagement.

3. A handle according to claim 2, characterised in that the elastically yieldable means having a radial action has the shape of a triangle compressed between two anchoring regions (32, 34) which are radially spaced apart and provided on the respective section members (21, 11) in which bear one (31) of the apices of the triangle and the base (33) opposed to said apex.

4. A handle according to claim 3, characterised in that the triangle is an isosceles triangle and the apex (31) bearing against the corresponding anchoring region (34) is adjacent to the equal sides of the triangle.

5. A handle according to one of the claims 1 to 4, characterised in that it comprises a single spring (27) comprising a helical winding (28) for biasing the movable section member (21, 121) toward its locking position and a part in the shape of an isosceles triangle (29) extending one of the ends of the winding, compressed between two radially spaced-apart anchoring regions (32, 34) provided on the respective section members (21, 121-11, 111) in which bear the apex (31) of the triangle adjacent to the equal sides and the base (33) opposed to said apex.

6. A handle according to one of the claims 1 to 5, characterised in that the fixed section member (11, 111) has the general shape of an L having an obtuse angle and including a radial wing (17,117) whose end (24, 124) is covered by a circumferential wing (23, 123) of the movable section member (21, 121) with which is integral a radial wing (22, 122) pivotally mounted on the fixed section member in the region of the junction (16) of its wings (12, 17).

7. A handle according to claim 6, characterised in that the retaining boss (36) constitues an axial and radial projection formed on the inner surface of the circumferential wing (23) of the movable section member (21), the complementary cavity forming a stop constituting an axial groove (37) formed in the edge of the radial wing (17) of the fixed section member (11).

8. A handle according to claim 6, characterised in that the retaining boss (136) constitues a cylindrical element formed at the junction between the radial wing (122) and the circumferential wing (123) of the movable section member (121), the complementary cavity constituting a laterally oriented axial groove (137) formed at the end (124) of the radial wing (117) of the fixed section member (111).

9. A handle according to one of the claims 1 to 8, characterised in that the bead (19) which constitutes a pivot axis is provided in the movable section member (21, 121) and the latter is axially retained by means of a screw (39) or like means which is engaged in the junction region (16) of the two wings (12, 17) of the fixed section member (11, 111) and extends through a notch (38) in the bead.

10. A handle according to one of the claims 3 to 5, characterised in that the spring (27) is axially retained in one of the section members by a crushing effected on the corresponding anchoring region (34).

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