BE1020046A3 - PROTECTION SYSTEM FOR BLINDEE DOOR. - Google Patents

Abstract

Protection system 1 for a rotor and / or stator of a locking device for a shielded access door, said protection system comprising: - a first flat metal body 2, - a disc 5, - a second flat metal body 7, wherein the first flat metal body 2 and the second flat metal body 7 are welded to each other, advantageously by a peripheral weld bead 9, and wherein the peripheral openings 4 of the flat metal body 2 are adapted for receiving weld areas for attaching the first metal flat body to the metal wall P of the door.

Description

The invention relates to a protection system 1 for a rotor and / or stator of a locking device for a shielded access door, said locking device being controlled by a key adapted to control the rotation of the rotor about an axis relative to the stator between at least one locked position and an unlocked position, said protection system being adapted to be attached to a metal wall of the armored door, said protection system comprising: a first flat metal body 2, advantageously a disc, having a central opening 3 and at least three peripheral openings 4 distributed around the central opening 3, a disc 5, advantageously metallic, adapted to be rotatably mounted in the central opening 3 of the first flat body 2, said disk being rotatable relative to an axis substantially parallel to the axis of rotation the rotor, said disk having a slot 6 adapted for the passage of a portion of a key, - a second flat metal body 7 having a central opening 8 whose shape and / or dimension is / are adapted to oppose at the passage of the disk by a translational movement parallel to the axis of rotation of the rotor, wherein the first flat metal body 2 and the second flat metal body 7 are welded to one another, preferably by a weld seam 9, and wherein the peripheral openings 4 are adapted to receive weld zones 10 for attaching the first metal flat body to the metal wall P of the door.

The protection system according to the invention makes it possible to protect the rotor and / or the stator, advantageously the rotor and the stator of the mechanical aggression locking device, for example by means of a grinder, circular saw, hammer, etc.

Particular features and details of the invention are given in the appended claims, and will emerge from the description of preferred embodiments given by way of example only, the subject of the claims being generalizations of the embodiments shown, generalizations being possible. to be combined differently to arrive at other embodiments.

Such a protection system is shown by way of example in Figure 1, Figure 2 showing the system of Figure 1 after removal of the second flat body 7, while Figure 3 shows the disc 5. Figure 4 is a sectional view on a larger scale of the system of Figure 1.

FIG. 5 is a view similar to that of FIG. 4, but for an advantageous embodiment for which the central openings 3.8 of the first and second flat bodies 2.7 and the disc 5 are adapted to oppose the withdrawal. disc 5 out of said central openings by translation movement parallel to the axis of rotation of the disc 5 relative to said central openings, and in two opposite directions.

According to a detail of advantageous embodiments, detail shown only in Figure 5, the peripheral openings 4 have a frustoconical shape, the widest section preferably being turned towards the metal wall of the door.

According to still another detail of advantageous embodiments, detail shown in Figure 5, the flat bodies 2, 7 have edges adapted to substantially form one or more surfaces or faces F1, F2 continuous inclined relative to the axis of rotation R of the disc 5, which axis is also the axis of rotation of the rotor.

The first disk 2 is advantageously welded on its periphery (weld bead 11) to the wall of the door P.

In the embodiments of Figures 4 and 5, the flat bodies 2.7 are discs having a circular opening centered with respect to the center of the disc and relative to the center of rotation of the disc.

Although in the embodiments of Figures 4 and 5, the first disk 2 has four peripheral holes, it would have been advantageous to have 5 or 7.

The peripheral holes are advantageously arranged between them with substantially the same angular spacing between two adjacent or successive peripheral holes.

In the embodiment of Figure 5, the central opening 3 of the first flat body has a substantially frustoconical shape, the widest section facing the wall of the door.

In preferred embodiments, the first body, the second body and the disc are made of a hard steel, in particular a spring type steel.

Still in the preferred embodiments, at least the faces of the system not facing the wall of the door are covered with an anti-abrasive coating AB. This AB coating (broken lines) also covers at least a portion of the adjacent door of the protection system.

The invention therefore also relates to a shielded door (shown only partially and schematically in FIGS. 4 and 5) comprising a locking device comprising a stator and a rotor movably mounted relative to the stator, said rotor being controlled by a key, characterized in that the stator and / or the rotor are protected by a protection system according to the invention.

The flat body 2 has for example a thickness twice that of the flat body 7. for example the flat body 2 has a thickness of between 2 and 10 mm, while the body 7 has a thickness of 1 to 5 mm.

Claims (11)

1. Protection system 1 for a rotor and / or stator of a locking device for a shielded access door, said locking device being controlled by a key adapted to control the rotation of the rotor about an axis with respect to the stator between at least one locked position and an unlocked position, said protection system being adapted to be attached to a metal wall of the armored door, said protection system comprising: a first flat metal body 2, advantageously a disk, having a central opening 3 and at least three peripheral openings 4 distributed around the central opening 3, - a disc 5, advantageously metallic, adapted to be rotatably mounted in the central opening 3 of the first flat body 2, said disc being rotatable relative to an axis substantially parallel to the axis of rotation of the rotor, said disc having a slot 6 adapted to the pitch wise of a part of a key, - a second flat metal body 7 having a central opening 8 whose shape and / or dimension is / are adapted to oppose the passage of the disk by a translational movement parallel to the the axis of rotation of the rotor, wherein the first flat metal body 2 and the second flat metal body 7 are welded to each other, advantageously by a peripheral weld bead 9, and in which the peripheral openings 4 are adapted for receiving weld areas for attaching the first metal flat body to the metal wall P of the door. 2. Protection system according to claim 1, characterized in that the central openings 3.8 of the first and second flat bodies 2.7 and the disk 5 are adapted to oppose the removal of the disc 5 from said central openings by movement translation parallel to the axis of rotation of the disc 5 relative to said central openings, and in two opposite directions. 3. System according to claim 1 or 2, characterized in that the peripheral openings 4 have a frustoconical shape, the widest section preferably being turned towards the metal wall of the door. 4. System according to any one of the preceding claims, characterized in that the flat bodies 2.7 have edges adapted to form substantially one or more surfaces or continuous faces inclined relative to the axis of rotation of the disc 5. 5. System according to any one of the preceding claims, characterized in that the flat bodies 2.7 are discs having a circular opening centered with respect to the center of the disc and relative to the center of rotation of the disc. 6. System according to any one of the preceding claims, characterized in that the first flat body has 4 or more than 4, advantageously 5 or more peripheral holes. 7. System according to any one of the preceding claims, characterized in that the peripheral holes are arranged between them with substantially the same angular spacing between two adjacent or successive peripheral holes. 8. System according to any one of the preceding claims, characterized in that the central opening 3 of the first flat body has a substantially frustoconical shape, the widest section being turned towards the wall of the door. 9. System according to any one of the preceding claims, characterized in that the first body, the second body and the disc are made of a hard steel, in particular of a spring type steel. 10. System according to any one of the preceding claims characterized in that at least the faces of the system not facing the wall of the door are covered with an anti-abrasive coating. 11. Armored door comprising a locking device comprising a stator and a rotor movably mounted relative to the stator, said rotor being controlled by a key, characterized in that the stator and / or the rotor are protected by a protection system according to the invention. Any one of the preceding claims, wherein the first flat body 2 is attached by solder zones extending into the peripheral holes.