DE69402279T2 - Sliding sash - Google Patents

Description

The present invention relates to an openable sash arrangement which can be operated by sliding within a fixed frame of a window, door or the like which is installed and fixed in a wall or similar supporting structure, the arrangement comprising two wings - a movable wing and a fixed or semi-fixed wing - which, in the closed position of the window, are arranged in one and the same plane, each in the extension of the other, and are made to be arranged one behind the other, plane to plane, parallel to one another in the open position.

In particular, the invention relates to a device which, at the same time as the movable sash is moved in the frame from the open position to the closed position of the window or vice versa, enables this sash to be moved perpendicular to its plane in order to move it behind or in front of the fixed or semi-fixed sash which is also arranged within the same frame.

Conventional sliding sash arrangements are known in technology, comprising two sashes offset from one another in two adjacent and parallel but nevertheless separate planes, which creates difficulties in terms of sealing and, above all, requires a considerable thickness for the window in the closed position when the two sashes are arranged in two separate planes, which detracts from the aesthetics of the whole.

Through the European patent application EP-A-148 812 a sliding wing arrangement of this type is also known, but it is improved in that the two wings in the closed position of the window are substantially in the same plane. However, in this embodiment, when the window is opened, the movable sash is brought behind or in front of the semi-fixed sash as a result of a pivoting in its plane which causes the movable sash to be displaced relative to the semi-fixed sash at the end of the latter, this pivoting being carried out about inclined support surfaces provided on the frame before the movable sash is gradually moved out of its housing inside the frame to finally come into position in front of or behind the other sash.

Such an embodiment, however, requires that the frame be of relatively great thickness or depth in order to accommodate this pivoting and then to restore the position of the movable sash, which is undesirable from the point of view of the external appearance of the window. In addition, the operation of the movable sash requires the application of successive forces to first pivot it and then, secondly, to adjust it laterally, which also has disadvantages.

The subject of the present invention is a sliding sash arrangement which, by exerting a single lateral pull as a result of the usual hand movement for opening a conventional sash, ensures the automatic opening of the movable sash, such that the behavior of the arrangement is improved, in particular with regard to the water and air tightness and the insulation between the inside and outside of the window, whereby the aesthetic appearance of the window is also improved.

The sliding sash arrangement under consideration with a movable sash and a fixed or semi-fixed sash of the same dimensions arranged in a fixed frame, which has two parallel rails which extend over the entire length of the frame, which corresponds to the sum of the widths of both wings, in such a way that, when arranged side by side, they are arranged in the same plane in one of the two rails and thereby completely close the frame, is characterized for this purpose in that the two rails are connected to one another at least approximately in their middle region, based on the length of the frame, via a transition switch for a guide roller, which is provided with a pin which is arranged in a receptacle provided in the lower part of the movable wing, the two rails each having, in the region of the switch, two internal fillers in the form of protruding parallel webs and an intermediate guide of greater height than the webs, the guide roller having two steps arranged one above the other, each with a profile ramp which can cooperate on the one hand with the internal webs and on the other hand with the intermediate guide in order to move and pivot the guide roller from one rail to the other as it passes through the switch.

Preferably, the guide roller has a slot machined into its lower step, in which a support roller resting on the floor of the rails is arranged, whereby this roller is arranged to rotate on a horizontal axis which is mounted transversely within the slot.

According to a special feature, the intermediate guide in the area of the transition switch has an inclined contact surface, which can interact with a contact surface incorporated in the upper step of the guide roller.

Advantageously, the lower step of the guide roller has a rounded edge with a large radius of curvature, which when passing through the switch, it is able to interact with the end pieces of the webs arranged in the rails.

According to another preferred characteristic, the lateral end of the rail which, in the closed position of the window, receives the movable sash, has, opposite the transition switch, a stop plate provided with an inclined surface which cooperates with a second guide roller which has a single step corresponding to the second step of the first guide roller and also has a rounded edge with a large radius of curvature which cooperates with the inclined surface of the plate.

According to a further preferred feature, the two guide rollers have, on the side opposite their rounded edges, a straight section for guiding these guide rollers in the rails.

Further features of a flush sliding sash arrangement according to the invention also emerge from the following description of an exemplary embodiment given for explanation and not as a limitation with reference to the attached drawings, in which

Fig. 1 is a simplified side view of a sliding sash arrangement according to the invention, showing the positional relationship of the two sashes when the window is opened;

Fig. 2 is a simplified view, but from above, of the sash arrangement under consideration, which makes it possible to specify the principle of adjustment of the movable sash within the fixed frame;

Fig. 3 and 4 are partial longitudinal sections on an enlarged scale of the two wings of the wing arrangement in the area of the guide rails of the frame, which in particular represent the structure of the means for moving the movable sash, shown in Fig. 3 in the closed position of the window and in Fig. 4 in the open position;

Fig. 5 is a detailed oblique view of the first cam guide roller used to enable opening and closing of the movable sash in the rails of the frame;

Fig. 6 is a cross-sectional view of the cam guide roller according to Fig. 5, shown arranged in the rails of the frame;

Fig. 7 is a sectional view of the rails of the frame along the line VII-VII in Fig. 3.

In Figs. 1 and 2, reference numeral 1 generally designates the fixed frame or the fixed lining of a window, a door or the like, this frame being held in place within a wall 2 or a similar supporting structure in a manner known per se in the art using conventional devices which are of little importance for the present invention.

The opening sash arrangement 3 of the window is arranged within the fixed frame 1 and is formed by two sashes 4 and 5, the sash 4 being movable in the frame, whereas the - fixed or semi-fixed - sash 5 is fixed within the frame, for example in the position shown in the figures.

In the closed position of the window shown in Fig. 2, the movable frame 4 is arranged flush with and in the extension of the semi-fixed sash 5; the movable frame is shown in a simplified manner with dot-dash lines. In contrast, in the open position, the movable sash 4 first undergoes an adjustment at right angles to its plane within the frame 1 before it is parallel to itself. itself is adjusted to position itself behind the semi-fixed wing 5; this time the movable wing 4 in this position is shown in solid lines in Fig. 1 and 2.

It should be noted that the semi-fixed leaf 5 can, if necessary, be unlocked in relation to the frame in the previous position and, if necessary, be adjusted in the latter in order to take up the initial position of the movable leaf if necessary.

The invention makes it possible, by exerting on the movable leaf 4 the normal force for its lateral displacement within its frame, to first carry out its displacement in the depth direction, which is achieved automatically, then to carry out its transverse movement in order to pass from the open position to the closed position or vice versa with, in this case, first a transverse movement, then, at the end of the travel, a movement perpendicular to itself, which returns it to the plane of the semi-fixed leaf.

For this purpose, and as shown in Figs. 3 and 4, the lower part of the frame 1 is designed to have two parallel guide rails which extend in the longitudinal direction of the two wings, these rails, which are designated by the reference numerals 6 and 7 in Figs. 3 and 4, respectively, extending over the entire length of the frame.

Inside the aforementioned rails, there are arranged webs of limited length, which are arranged in these rails parallel to the longitudinal extension of the latter, these webs, 8 and 9 respectively in the rail 6, 10 and 11 in the rail 7, thus being parallel to each other and being connected to the bottom of the rails by screws 12, the heads of which are in corresponding holes in these webs so as not to protrude outwards, especially beyond the latter.

The webs, 8, 9 on the one hand, 10 and 11 on the other hand, are separated within the rails in which they are arranged, on the one hand by a gap 13, and on the other hand by a gap 14, the dimension of which in the transverse direction is slightly larger than that of a roller 15 which is mounted so as to be rotatable about an axis 16, which in turn is arranged in a component 17 called a cam guide roller, the structure of which is shown very specifically in Figs. 3 to 6.

This curved guide roller 17 is composed in particular of two steps 18 and 19 arranged one above the other, the step 18 extending in the transverse direction, essentially at the height of the webs 8 and 9 or 10 and 11, depending on whether the guide roller is located in one or the other of the two rails 6 or 7, as shown in particular in the sectional view of Fig. 6, this step 18 also being slightly higher in relation to the bottom of the frame 1 on which the roller 15 moves.

The first step 18 has on the outside a rounded edge 20 with a large radius of curvature, the profile of which is intended to enable, in cooperation with inclined stop surfaces 21 in the form of bevels formed in the end pieces, which are essentially opposite the webs 8 and 9 on the one hand and 10 and 11 on the other hand, a gradual pivoting of the curve guide roller 17 when it passes through a transition switch 22. Preferably, the stop surfaces 21 form an angle of approximately 45º with the direction of the rails.

The switch 22 is provided essentially in the central part of the frame and has the shape of a kind of connecting corridor between the two rails 6 and 7, with a width that is approximately equal to the width of these rails and in an oblique orientation, with an angle to the longitudinal direction of the frame 1 equal to that of the stop surfaces 21.

At the rear of the edge 20, the first step 18 of the curve guide roller 17 has two inclined surfaces 23 and 24 and, opposite this edge 20, a straight section 25, the inclination of which is equal to that of the stop surfaces 21 provided at the ends of the webs when the curve guide roller assumes the position shown in Fig. 3.

The switch 22 corresponds to an opening for the passage of the curved guide roller 17 from one rail to the other, such that the movable leaf 4 is able to move at right angles to its own plane when the leaf assembly is opened, before moving behind the semi-fixed leaf 5 in the manner explained in more detail below, the passage of this switch by the guide roller 17 being carried out in particular thanks to the relative cooperation of part of the rounded edge 20 with the inclined end stop surfaces 21 in succession with respect to the webs 8 and 9 of the rail 6, and part of the straight section 25 with the same inclined stop surfaces 21, but with the webs 10 and 11 of the other rail 7.

The step 19 of the curved guide roller 17, which extends above the step 18 and consequently above the upper level of the webs 8 and 9 on the one hand, 10 and 11 on the other hand, is intended to cooperate with an intermediate guide 26 which is arranged in the frame 1 so as to separate the rails 6 and 7 essentially halfway along the width of the latter.

The guide 26 extends practically over the entire length of the frame 1, except in its central area at the switch 22 and also at the end of the frame, which is arranged on the left in the drawings of the example shown. The height of this guide 26 is greater than that of the webs 8 to 11, as shown in particular in Fig. 7.

In its upper part, the curved guide roller 17 has a pin 27 suitable for engaging a fitting 28 provided in the lower part of the movable leaf 4 (see Fig. 6). The installation of this pin thus allows the curved guide roller to pivot freely relative to the leaf, in particular when passing through the switch 22, the guide roller following the profile of this switch when passing from the rail 6 to the rail 7 or vice versa, while the movable leaf remains constantly parallel to itself.

Advantageously, the movable leaf comprises at its upper end a similar guide device (not shown) which adjusts in a guide or a rail of the same profile provided in the upper part of the fixed frame.

The equipment of the frame 1 and the movable leaf 4 is completed by the arrangement at the end of the rail 6, which is located in particular on the left in Fig. 3, of a triangular plate 29 fixed to the bottom of the rail by screws 30, this plate having an inclined surface 31 which extends into the interior of the adjacent rail 7, beyond the end 32 of the intermediate guide 26.

With the same arrangement as described in connection with the curve guide roller 17, the movable wing also provided with a second guide roller 33 which differs from the first essentially in that it does not have a component similar to that which forms the step 18 in the curved guide roller 17, this guide roller 33 only taking over the profile of the second step 19 with a rounded edge 34, an inclined surface 35 and a straight section 36 opposite the rounded edge 34. Furthermore, the distance separating the underside of this second guide roller 33 from the plane of the rail 6 or 7 is such that, during adjustment of the movable wing 4, this guide roller runs above part of the webs 8, 9 and part of the webs 10, 11, unlike the curved guide roller 17 which, as already stated, cooperates with the sides of these webs while being guided by them during the adjustment movement of the movable wing.

The operation of the wing arrangement according to the invention, in particular its movable wing 4 by sliding it in the frame 1, can be easily derived from the above description.

In the position shown in Fig. 3, the wing 4 is in the closed position, being housed in the rail 7 of the frame in the extension of the semi-fixed wing 5, whereas the same movable wing 4 according to Fig. 4 has been moved into the open position of the wing arrangement, being arranged in the rail 6 behind the semi-fixed wing.

The transition from one position to the other is carried out by applying to the movable wing 4 a simple lateral displacement force from the position shown in Fig. 3.

In this latter, the cam guide roller 17 with its first step 18 with its rounded edge 20 lies on the bevel 21 of the web 9, whereas its straight section 25 also rests on the parallel bevel of the web 11. At the opposite end of the wing, the second guide roller 33 also rests with its rounded edge 34 on the inclined section 31 of the plate 29.

As soon as the opening force is exerted on the leaf 4, the curved guide roller 17 enters the switch 22, the rounded edge 20 of its first step 18 sliding on the bevel 21 of the web 9, then on that of the web 8 in the rail 6, this last bevel preferably being rounded itself in its end section 37, so as to facilitate the pivoting of the curved guide roller 17, which thus enters the rail 6. At the same time, the second step 19 follows the profile of the intermediate guide 26 by running above the webs, the interaction of the actions of the two steps of the curved guide roller thus enabling the pivoting and continuous guidance of the guide roller.

At the same time, the second guide roller 33 slides along the inclined surface 31 of the plate 29 until its straight section 36 has also passed over the end 32 of the same intermediate guide 26 in the opposite part, on the left side of the frame. During this adjustment and due to the greater height of the guide roller 33 above the bottom of the rails, it moves above the webs 8, 9, 10 and 11 without risk of being blocked by the latter.

The guide rollers 17 and 33 are then in the position shown in Fig. 4 because the movable leaf 4 they support has moved with the rollers 15 of its guide rollers rolling on the bottom of the frame, this time placing itself behind the semi-fixed leaf 5. The movement of the movable leaf then continues in the rail 6 until it reaches the fully open position. , whereby the roller 15 of the second guide roller is arranged at the end of the path in the space 13 between the webs 8 and 9.

During the passage of the first guide roller 17 through the switch on the one hand, and the adjustment of the second guide roller 33 along the inclined surface 31 of the plate 29 on the other hand, these guide rollers pivot freely about the vertical axis of their support pins 27 of the movable wing, while the latter remains constantly parallel to itself. It is understood that when the movable wing adjusts in the opposite direction to go from the open position of Fig. 4 to the closed position according to Fig. 3, the movements of both the guide roller and the wing are reversed, but with an identical sequence of their associated adjustments.

In this way, an assembly of simple design is created, but which has particularly significant advantages, both in terms of the simplicity of manufacture and assembly of the necessary components, and in the use of the movable leaf after it has been mounted in its frame, the unlocking of this leaf being carried out solely under the action of a force in its plane, without any oblique movement being required to move it from one rail to the other.

It goes without saying that the invention is not limited to the embodiment specifically described above and shown in the accompanying drawings, but on the contrary includes all modifications covered by the claims.

In particular, it must be understood that the wing arrangement under consideration usually comprises devices of the type seals allowing the window to be sealed in the closed position, these seals being carried by the movable leaf and the semi-fixed leaf, resting against a peripheral stop of the frame in a conventional manner without hindering the opening or closing movement of the window. The two leaves of the latter can also advantageously be equipped with an appropriate locking mechanism. Finally, they have, in their upper part, on the inside of the fixed frame 1, guide rollers or runners which are symmetrical to those carried by these leaves in their lower part, but without guide rollers.

It should also be noted that the embodiment under consideration provides for the movement of the movable sash when the window is opened from left to right, as shown in the drawings. To obtain the opposite operation with opening from right to left, it is sufficient to reverse the positions of the webs in the rails, the transition switch itself then being symmetrical to that provided for in the example given above.

Whatever the variant envisaged and in accordance with the example described, the guide rollers 17 and 33 move on the bottom of the rails 6 and 7 by means of a single roller 15 freely rotating about the axis 16 which supports each of these guide rollers. However, if the load formed by the movable wing is greater, in particular due to the intrinsic dimensions of this wing assembly, the roller can advantageously be doubled by two adjacent elements arranged on the same axis and driven in rotation simultaneously with the displacement of the wing assembly. The two rollers supported by each guide roller can arranged side by side in the same recess of the guide roller or, if necessary, in two adjacent recesses.

Finally, and in the previous description, it has been indicated that after the movable wing has been adjusted and after it has moved from the rail 7 containing the semi-fixed wing into the rail 6 in order to position itself behind the latter, it is possible to adjust this semi-fixed wing laterally in the rail 7. In this case, this semi-fixed wing is also provided with rollers, shown in simplified form in Figures 3 and 4, which are advantageously carried by guide rollers similar to those indicated by the reference 33 for the movable wing 4, i.e. whose height is determined so that these guide rollers move above the webs 8 to 11 without risk of blocking by the latter.

Claims (7)

1. Flush sliding sash arrangement for windows, doors or similar, with a movable sash (4) and a fixed or semi-fixed sash (5) of the same dimensions, which are arranged in a stationary frame (1) which has two parallel rails (6, 7) which extend over the entire length of the frame, which corresponds to the sum of the widths of both sashes, such that when arranged next to one another in one of the two rails they are arranged in the same plane and thereby completely close the frame, characterized in that the two rails are connected to one another at least approximately in their middle region, based on the length of the frame, via a transition switch (22) for a guide roller (17) which is provided with a pin (27) which is arranged in a receptacle provided in the lower part of the movable sash, the two rails each having two internal filler pieces in the region of the switch in Form of protruding parallel webs (8, 9 - 10, 11) and an intermediate guide (26) of greater height than the webs, the guide roller has two steps (18, 19) arranged one above the other, each with a profile section which can interact on the one hand with the internal webs and on the other hand with the intermediate guide in order to move and pivot the guide roller from one rail to the other when passing through the switch. 2. Sliding wing arrangement according to claim 1, characterized in that the guide roller (17) has a slot machined into its lower step (18), in on which a support roller (15) is arranged which rests on the bottom of the rails (6, 7), said roller being arranged to rotate on a horizontal axis (16) which is mounted transversely within the slot. 3. Sliding wing arrangement according to one of claims 1 or 2, characterized in that the intermediate guide (26) in the area of the transition switch (22) has an inclined contact surface which is able to interact with a contact surface incorporated in the upper step of the guide roller (17). 4. Sliding wing arrangement according to one of claims 1 to 3, characterized in that the lower step (18) of the guide roller (17) has a rounded edge (20) of large radius of curvature, which can interact with the end pieces (21) of the webs (8, 9 - 10, 11) arranged in the rails (6, 7) when passing through the switch. 5. Sliding wing arrangement according to one of claims 1 to 4, characterized in that the lateral end of the rail (7) which receives the movable sash in the closed position of the window has, opposite the transition switch (22), a stop plate (29) provided with an inclined surface (31) which cooperates with a second guide roller (33) which has a single step corresponding to the second step of the first guide roller (17) and also has a rounded edge (34) of large radius of curvature which cooperates with the inclined surface of the plate. 6. Sliding wing arrangement according to claim 5, characterized in that the two guide rollers (17, 33) have a straight section (25, 36) on the side opposite their rounded edges (20, 34) for guiding these guide rollers in the rails. 7. Sliding wing arrangement according to one of claims 2 to 6, characterized in that the support rollers (15) resting on the bottom of the rails (6, 7) are doubled depending on the load they bear.