ITMI20012059A1 - MECHANICALLY DRIVEN SLIDING DOOR SLIDING DEVICE - Google Patents

Description

DESCRIPTION

Of the Patent Application for Industrial Invention entitled:

"Release device for mechanically driven swing shutters"

The present invention relates to a device for releasing mechanically driven swing shutters, comprising at least one arm whose first end is rotatably mounted on a motor shaft and whose second end is suitable for resting on said shutter to drag it into rotation, from a position said closed towards a position called open.

Devices intended to drag swing shutters from inside homes without having to open the windows are known and exist in motorized or manual versions.

Generally, the compartment is closed by two doors, each door being able to rotate 180 ° around a vertical axis located near the lateral edges of the compartment. An elbow arm connects each of the internal faces of the leaves to a vertical drive shaft, which protrudes outside a transmission box, which is located under the lintel or on the lower edge of the compartment near the axis of rotation of the leaves . The transmission box comprises motor means, in particular, but not exclusively, electric motors capable of rotating the motor shaft on which the first end of said arm is mounted. The second end of said arm is slidably mounted in longitudinal guide means fixed, perpendicular to the rotation axis, on the leaf so as to be integral with it. Therefore, the arm constitutes a lever arm, the second end of which is adapted to rest on said leaf and to drag it into rotation around its vertical axis, and since the motor shaft and the axis of rotation are not coaxial, the end of the arm is movable in translation with respect to said leaf.

The total closure of the compartment is achieved when, under the action of the arms, the doors stop against the edges of said compartment. The shutters thus constitute a means of insulating the interior of the house from the cold, but they also represent a means of preventing break-ins.

Now, the mechanical dragging devices of the swing shutters do not allow the two shutters to be kept in a sufficiently secure manner in the closed position on the shaft.

One solution is to mount a traditional locking system on said shutter, and this requires, in addition to opening the window, a manual operation to operate said system to lock and unlock. The present invention has the purpose of obviating these drawbacks by proposing an unlocking and locking device operated by the means of dragging the shutter.

This object is achieved thanks to the fact that the release device comprises: a connecting rod, the first end of which is rotatably mounted on the second end of said arm and the second end of which is slidably mounted on said leaf so that said arm can drag said arm clapper from said open position to said closed position, in which said second end of said arm is in a position spaced from said clapper; locking means integral with said leaf and suitable for being controlled by a control rod, the end of which is located near said second end of said connecting rod, from a locked position corresponding to the said closed position of said leaf, in which said locking means are mechanically connected to at least one fixed stop point, towards an unlocked position, in which said locking means are released from said fixed stop point; and in that, in said locked position, said arm is suitable for dragging the first end of said connecting rod towards the sash so that the second end of said connecting rod which slides on said sash cooperates with said end of said control rod and controls said locking means to free them from said fixed stop point and that said second end of said arm rests against the sash to drag it into rotation, so that the rotation of said arm releases said shutter and then drags the sash towards said position open.

Therefore, a characteristic of the release device consists in the method of dragging the release means by rotating the arm, the second end of which, spaced from the sash in the closed position, acts first of all on the first end of the connecting rod, causing the sliding of the second end of the connecting rod. on the leaf and the rotation of said connecting rod around said second end of the arm. In this way, during the rotation of the arm, before its second end comes into contact with the sash which is held in a fixed position by the locking means, the second end of the connecting rod is guided in translation against the sash and drags the rod control whose end is located near the second end of said connecting rod. The control rod is suitable for controlling the locking means, which are fixed on the leaf and are mechanically connected to a fixed stop point integral with the compartment, so as to free said stop point.

As soon as the stopping point is released, the second end of the arm comes into contact with said leaf and drags it in rotation towards the open position, the connecting rod being substantially parallel to said leaf and held against the end of the control rod. In this way, the swing shutter, initially locked on said fixed stop point, is unlocked and is opened only by the rotating actuation of the arm.

According to a particularly advantageous embodiment of the invention, said locking means comprise a locking member suitable for rotating between a first position, in which said locking means are mechanically connected to said fixed stop point and a second position, in which said locking means are released from said fixed stopping point, said locking member being provided with return means suitable for keeping it in said first position;

and due to the fact that during the closure of said door the locking means and said fixed stop point cooperate with each other so that said locking member rotates to mechanically connect the locking means and said fixed stop point in said closed position of said swing.

Therefore, the locking member constitutes a simple movement transmission element for locking and unlocking the shutter. Furthermore, the recall means allow the locking member to be kept in the position corresponding to the active state of the locking means, i.e. in the state in which they are connected to the stopping point. In this way, when the door leaf is driven in rotation towards the closed position, the locking means are first of all guided by the stop point so as to rotate said locking member and to allow the door to be closed; then, when the sash is in the closed position and the locking member has found its initial position under the action of the return means, the locking means are connected to the fixed stop point and ensure the locking of the shutter.

According to an advantageous configuration, the control rod is hingedly mounted on said locking member and said end of said control rod is slidably mounted on said sash, so that the translational displacement of the end of said control rod drives the rotation of said blocking organ.

As will be explained in greater detail, according to a preferred embodiment, the locking means comprise at least one longitudinal piece which forms a hook integral with said locking member, suitable for rotating and mechanically connecting said locking means with said fixed stop point. . The longitudinal piece is mounted hinged on the leaf and is integral with the locking member so as to rotate simultaneously with it.

Moreover, the longitudinal piece forms a hook which is kept in the active position by the return means of the locking member and which can be moved from the stop point, initially during the closure of the door. Later, when the sash is in the closed position, the longitudinal piece finds its active position under the action of the return means on the locking member and the hook part is engaged behind the fixed stop point.

According to another preferred embodiment of the invention, the locking means comprise at least one return rod substantially perpendicular to said control rod and rotatably mounted on said locking member, so that the rotation of said locking member drives in translation the end of said return rod which is suitable to be engaged in said fixed stop point.

According to an advantageous characteristic, the second end of said connecting rod is suitable for sliding towards the rotation axis of said sash during opening, so as to drag the end of said control rod to exert traction on the locking member. opposite to the action of said return means, whereby said locking means are released from said fixed stop point.

According to another advantageous characteristic, the locking device comprises first means, which form a slide, integral with said leaf, in which said second end of said connecting rod and the end of said control rod are engaged so that the second end of said connecting rod sliding in said first means which form a slide in the opposite direction to the axis of rotation of said sash is suitable for exerting a thrust, on said end of the control rod, opposite to the action of said return means, for causing said locking member to rotate and freeing said locking means from said fixed stop point. Therefore, according to this feature, the second end of the connecting rod and the end of the control rod are guided in translation in the same means that form a slide. In this way, the second end of the connecting rod, under the action of the arm, can rest on the end of the control rod and drag it into translation in the means that form a slide.

Advantageously, the locking member is made of an elastically deformable material to form said return means, whereby said member rotates elastically around a fixed point. This feature makes it possible to produce locking means at an advantageous cost, while retaining the technical characteristics necessary for the operation of the locking means. According to a particularly advantageous arrangement, the locking device comprises second means which form a slide, parallel to said first means which form a slide, in which the second end of said arm is suitable for being engaged during the opening of said sash in a manner to be integral with said second means which form a slide, whereby said leaf is in a fixed position when said arm is immobile between said open position and said closed position. This arrangement makes it possible to keep the shutter of the shutter in a fixed position when it is ajar. In fact, in this case, the sash is held by the second end of the connecting rod which is articulated on the second end of the arm and which is immobilized in mid-stroke. Considering the degree of freedom of the connecting rod, the sash has a play in rotation which is detrimental. According to this particular arrangement, when the end of the arm comes into contact with the sash, the second means which form a slide is engaged and in the half-closed position the triangle formed by the end of the arm, the axis of rotation of the sash and the rotation axis of the arm is non-deformable and the sash is kept in a fixed position.

Advantageously, the first means which form a slide have a lateral recess in which the second end of said arm can be engaged during the opening of said wing, so as to be integral with said first means which form a slide, whereby said wing it is in a fixed position when said arm is immobile between said open position and said closed position. As soon as the end of the arm comes into contact with the sash, it crosses the recess and engages in the same means that form a slide in which the second end of the connecting rod slides and allows the sash to be immobilized in a ajar position.

Other particularities and advantages of the invention will emerge from the reading of the description given below of particular embodiments of the invention, provided as an indication but not of limitation, with reference to the attached drawings, in which:

- Figure 1 is a schematic top elevation view showing the device according to the invention, in which the shutter of the shutter is in the closed position;

- Figure 2 is a schematic top elevation view showing the operation of the device to unlock the shutter;

- Figure 3 is a schematic top elevation view showing the shutter of the shutter being opened;

- Figure 4 is a schematic top elevation view showing the shutter of the shutter in the open position; And,

- Figure 5 is a schematic top elevation view showing the shutter of the shutter being closed.

Reference will be made first to Figure 1 to describe the constitutive elements of the invention.

Figure 1 illustrates a partial top view of a compartment suitable to be closed by a shutter. The shutter comprises a leaf 10 which is rotatably mounted on the edge of the space according to a rotation axis 12, perpendicular to the plane of the drawing. In a classical way, the leaf comprises hinges suitable for cooperating with hinges fixed in the edge of the compartment.

The leaf 10 is in the closed position and cooperates with a second leaf 16 so as to completely obstruct the compartment.

The device comprises an arm 18, the first end 20 of which is rotatably mounted on a drive shaft 22 located in the compartment. The drive shaft 22 essentially protrudes vertically outside a box 24 in which a transmission mechanism of the drive shaft 22 is installed. Therefore, the drive shaft 22 is suitable for dragging the arm 18 in a substantially horizontal plane.

The arm 18 has a second end 26, on which a connecting rod 28 is rotatably mounted. Said connecting rod 28 is suitable for rotating around its first end 30 and its second end 32 is mounted slidingly in a slide 34 which is integral with the internal wall of the leaf 10.

In the position illustrated, in which the sash 10 is in the closed position, the connecting rod 18 is inclined to the minimum by an angle 36 corresponding to the angle that the connecting rod 28 forms with the perpendicular to the sash 10. So that this angle is not less than the fixed limit which is greater than 0 °, the end 26 of the arm 18 comprises a relief, not shown, against which the connecting rod 28 can abut.

The slide 34 integral with the sash 10 is formed by a section in which a gap 38 is made along its entire length. The second end 32 of the connecting rod 28 has a vertical axis, not shown, which ends with a nib engaged in the opening 38 of the slide 34, so as to guide said second end 32 in translation.

Any other guiding means could be suitable for guiding the second end 32 of the connecting rod 28.

The device according to the invention comprises locking means 40 integral with the internal wall of the leaf 10. According to a particular embodiment, they comprise a longitudinal piece 42, the pointed end of which forms a hook and which is articulated according to a horizontal plane on the upper inner edge 44 of said shutter 10. The longitudinal piece 42 is engaged in a fixed point 46 integral with the upper edge of the compartment, so as to block the rotational movement of the shutter 10. Furthermore, it comprises return means, not shown , mounted on its axis of rotation 48, intended to keep it engaged in the fixed point 46. Moreover, stop means prevent the longitudinal piece 42 from rotating towards the sash 10 below an angle of 90 °.

Advantageously, the locking member is integral with a vertical shaft coaxial to the rotation axis of said member and drives in rotation longitudinal pieces which form hooks at the upper and lower ends of said leaf, said longitudinal pieces which form a hook being suitable for be engaged in fixed stop points located in the lower edge and in the upper edge of the compartment.

The device, according to this particular embodiment, also comprises a control rod 50, articulated on the longitudinal piece 42, whose end 52 is slidably mounted in the slide 34. The end 52 comprises, exactly like the second end 32 of the connecting rod 28, a vertical axis that ends with a nib engaged in the opening 38, suitable for guiding said end 52 in translation parallel to the sash 10.

According to the invention, when the arm 18 is rotated clockwise to rotate the sash 10 and open the shutter, the second end 26 of the arm 18 initially approaches the sash 10 and causes sliding of the second end 32 of the connecting rod 28 in the slide 34 towards the end 52 of the control rod 50.

It is understood that the sliding of the end 32 of the connecting rod 28 in the slide 34 starting from the rotation of the arm 18 is technically possible only if said connecting rod 28 has a sufficiently open angle 36. In fact, if the connecting rod 28 is perpendicular to the slide 34, the whole force of the arm is applied perpendicularly to the sash 10, with possible deterioration of the device.

When the second end 32 of the connecting rod 28 slides into the slide 34, it abuts against the end 52 of the control rod 50 which is located in proximity to the slide and moves it in translation colinearly, against the return means, until the end 26 of the arm 18 comes to abut against the internal wall of the leaf 10, according to Figure 2.

Figure 2 shows the arm 18, whose end 26 is in contact with the internal wall of the leaf 10, and the connecting rod 28 arranged parallel to the slide 34.

When the end 52 of the control rod 50 is moved in translation, it drags the longitudinal piece which forms a hook 42 in rotation about its axis 48, with the effect of unhooking the hook part from the fixed stop point 46 and releasing the locking means 40 from said fixed stop point 46.

In this way the shutter is unlocked and no obstacle opposes the rotating movement of the shutter 10 under the action of the arm 18 which subsequently drags it, as shown in Figure 3.

In this Figure 3, the connecting rod 28 is parallel to the slide 34 and its second end 32 is no longer abutting against the end 52 of the control rod 50 which has resumed its initial position thanks to the return means located on the axis 48 for rotation of the longitudinal piece which forms a hook 42, said piece going to rest on the stop means.

Figure 4 illustrates the open position of the sash, when the sash 10 is applied against the external wall of the building and the arm 18 is at the end of its travel. When the shutter is closed, the arm 18 is rotated counterclockwise, as shown in Figure 5.

Considering the fact that the connecting rod 28 is rotatably mounted at the end 26 of the arm 18 and that its second end 32 is suitable for sliding in the slide 34, when the arm 18 is driven in rotation, the dragging of the shutter is achieved by means of the connecting rod 28. The end 26 of the arm 18 is spaced from the sash 10 and is the second end 32 of the connecting rod 28, integral with the slide 34, which drives the sash 10.

When the latter, dragged by the arm 18, is applied to the compartment, the pointed part of said longitudinal piece 42 comes into contact with the fixed stop point 46 and is distanced by friction by rotating around its axis 48 clockwise, then it is it lowers under the action of the return means so that the hook part engages behind the fixed stop point 46, as soon as the sash 10 is in the closed position.

Therefore, the leaf is automatically locked without any manipulation and the locking means find their initial positions so as to allow a new release and a new opening.

According to a second particular embodiment of the invention, not shown, the locking means comprise a circular symmetry locking member, suitable for rotating around a fixed point of the sash and controlled by said control rod. On the periphery of said locking member, two transmission rods are mounted hinged in two diametrically opposite points, said transmission rods being suitable for being engaged in two fixed stop points, one in the upper part of the compartment, the other in the lower part .

Therefore, the control rod drags the locking member in rotation, which in turn drags the return rods to the fixed stop points.

According to a third embodiment, not shown, the connecting rod 28, like the one shown in Figure 1, is inclined according to an angle opposite to the angle 36 with respect to the perpendicular to the sash 10, and the actuation of the rotating arm drags the second end of the connecting rod 28 in the opposite direction to the direction of displacement according to the first embodiment. The second end 32 thus comes to abut against the end of a control rod, not shown, which exerts a traction on the locking member in order to release the locking means from the fixed stop point.

According to a fourth embodiment of the invention, not shown, the device comprises second means which form a slide, parallel to said first means, in which the second end of said arm can engage when the end of the arm comes into contact with the leaf, so as to be integral with said leaf. Therefore, in a ajar position, the sash is kept in a fixed position.

According to a fifth embodiment which also aims to immobilize the sash in a slightly closed position, the first means that form slides have a lateral recess, in which the second end of said arm can engage.

According to a sixth embodiment, the locking member is made of an elastically deformable material, so as to form the return means at an advantageous cost.

Claims (10)

CLAIMS 1. Unlocking device for mechanically driven swing shutters, comprising at least one arm whose first end is rotatably mounted on a motor shaft and whose second end is suitable for resting on said shutter to drag it into rotation, from a position called closed towards a so-called open position, characterized by the fact that it includes: - a connecting rod (28), whose first end (30) is rotatably mounted on the second end (26) of said arm and whose second end (32) is slidably mounted on said leaf (10), so that said arm (18) can drag said wing (10) from said open position into said closed position, in which said second end (26) of said arm (18) is in a position spaced from said wing; - locking means (40) integral with said leaf and suitable for being controlled by a control rod (50), whose end (52) is located in proximity to said second end (32) of said connecting rod (28), from a locked position corresponding to the said closed position of said leaf (10), in which said locking means (40) are mechanically connected to at least one fixed stop point (46), towards an unlocked position, in which said locking means (40) are released from said fixed stop point (46); and by the fact that, in said locked position, said arm (18) is suitable for dragging the first end (30) of said connecting rod (28) towards the sash (10), so that the second end (32) of said connecting rod (28) which slides on said leaf (10) cooperates with said end (52) of said control rod (50) and controls said locking means (40) to free them from said fixed stop point (46) and said second end (26) of said arm (18) rests against the sash (10) to drag it into rotation, whereby the rotation of said arm (18) releases said shutter and then drags the sash (10) towards said open position. 2. Mechanically driven swing shutter release device according to claim 1, characterized in that said locking means (40) comprise a locking member (42) suitable for rotating between a first position, in which said locking means (40) are mechanically connected to said fixed stop point (46) and a second position, in which said locking means (40) are released from said fixed stop point (46), said locking member (42) being provided with return means suitable for keeping it in said first position; and by the fact that during the closure of said flap (10), the locking means (40) and said fixed stop point (46) cooperate with each other so that said locking member (42) rotates to mechanically connect the locking means block (40) and said fixed stop point (46) in said closed position of said leaf (10). 3. Mechanically driven shutter release device according to claim 2, characterized by the fact that said control rod (50) is hingedly mounted on said locking member (42) and by the fact that said end (52) of said rod control element (50) is slidably mounted on said leaf (10), whereby the translation movement of the end (52) of said control rod (50) drives the rotation of said locking member (42). 4. Unlocking device for mechanically driven swing shutters according to claims 2 and 3, characterized in that said locking means (40) comprise at least one longitudinal piece which forms a hook (42) integral with said locking member (42) , suitable for rotating and for mechanically connecting said locking means (40) to said fixed stop point (46). 5. Device for releasing mechanically driven swing shutters according to claims 2 and 3, characterized in that said locking means (40) comprise at least one transmission rod substantially perpendicular to said control rod (50) and mounted in rotation on said lock member (42), so that the rotation of said lock member (42) translates the end of said return rod which is suitable to be engaged in said fixed stop point (46). 6. Mechanically driven swing shutter release device according to any one of claims 2 to 5, characterized in that the second end (32) of said connecting rod (28) is suitable for sliding towards the rotation axis (12) of said sash (10) during opening, so as to drag the end (52) of said control rod (50) to exert a traction on the locking member (42) opposite to the action of said return means , whereby said locking means (40) are released from said fixed stop point (46). 7. Mechanically driven shutter release device for shutters according to claim 3, characterized in that it comprises first means (34) which form a slide integral with said shutter (10), in which said second end (32) of said connecting rod (28) and the end (52) of said control rod (50), so that the second end (32) of said connecting rod (28) which slides in said first means (34) which form a slide in the direction opposite to the axis of rotation (12) of said wing (10) can exert a thrust on said end (52) of the control rod (50), opposite to the action of said return means, to rotate the locking member (42) and releasing said locking means (40) from said fixed stop point (46). 8. Unlocking device for mechanically driven swing shutters according to any one of claims 2 to 7, characterized in that said locking member (42) is made of an elastically deformable material to form said return means, whereby said member lock (42) rotates elastically around a fixed point. 9. Unlocking device for mechanically driven swing shutters according to claim 7, characterized in that it comprises second means which form a slide parallel to said first means (34) which form a slide, in which the second end of said arm can be engaged during the opening of said wing, so as to be integral with said second means which form a slide, whereby said wing is in a fixed position when said arm is immobile between said open position and said closed position. 10. Mechanically driven shutter release device according to claim 7, characterized in that the first means forming a slide have a lateral recess in which the second end of said arm can be engaged during the opening of said shutter, so as to be integral with said first means which form a slide, whereby said leaf is in a fixed position when said arm is immobile between said open position and said closed position.