FR2559198A1 - Door-closing device for manual and remote-control use. - Google Patents

Abstract

Door-locking device controlled either manually from inside a dwelling or from outside after modification and adaptation of a remote-control system. The invention relates to a device making it possible to lock a door. In its manual version, it consists of an articulated mechanism functioning as a hinge and composed of two tabs and of a tongue. The fixed tab or fastening lug 1 is equipped with a knuckle 4 having a groove 5 intended for receiving the tongue 7 articulated on the swing tab 2 which, together with the fastening lug, forms the hinge. The device according to this version is intended especially for locking a door from inside. The device according to the invention is intended particularly for ensuring the closing of a door, without the device being noticeable from outside. It supplements the traditional lock.

Description

 The present invention relates to door closing devices which can be used manually from inside a dwelling and which makes it possible to block a door perfectly without the device being visible from the outside; such a device does not replace a lock but is an additional security, including in the case of one of its particular applications with command- & remote.

 In known devices of this type, either a lock or a bar substantially longer than the width of the door blocks the door; the blocking bar is then fitted into two metal parts in the shape of an "L" sealed in the wall on either side of the door.

 The major drawbacks of these systems are, depending on the case, their size, their rusticity and their limited use and safety.

 The device according to the invention aims to overcome the above drawbacks while ensuring absolute closure and allowing more technically sophisticated variants. It indeed comprises three metal parts articulated together, the first two functioning as a hinge while the third , the tongue, fixed to the hinged flap of the hinge and complementary to the other two in its function, allows the device to lock; in the description below we will refer to the term hinge to designate the two parts of the locking device, the operation of which is similar to that of a hinge. The device according to the invention and according to the claims to which it relates is characterized by the following three metal parts, two constituting the hinge, the fixing lug and the flap, while the third the tongue, fixed to the hinged flap of the hinge allows, because of its racket shape and suitable machining of the knuckle, the device to block a door.

 The invention will be explained in a purely indicative manner during the illustrated description of figures which follows.

 Figure I shows a perspective view of the complete device according to the invention and its preferred embodiment.

Figure 2 shows a top view of the mounting bracket (section sq.AA)
Figure 3 shows a top view of the swinging shutter (section along AA)
Figure 4 shows a side view of a tab
Figure 5 shows a top view of the complete device in the locked position.

 Figures 6 to I4 show views of the variant of the present invention modified to be actuated mechanically by use of a remote control.

 Figure 6 shows a perspective view of the hinge.

 Your Figure 7 shows a perspective view of the locking piece.

Figures 8 and 9 show a perspective view of the transmission system
FIG. 10 represents the motor transmitting the movement to the device.

 Figures II and I2 show the device respectively open and closed when actuated by a remote control.

Figures I3 and I4 show horizontal pupae of the system when it respectively ends in the closed and open positions w section along AA
According to one preferred embodiment, the blocking device for manual use and in accordance with the invention comprises a hinge composed of two flaps I and 2 which are connected by a hinge pin 3.

the flap I where the triangular fixing lug has a knuckle 4 of rounded shape and machined so as to comprise a locking groove 5 and a safety recess 6 placed symmetrically with respect to the axis of rotation 3 of the depth voleta of the groove is "g", the distance from the bottom of the groove the axis of rotation is "e". The flap 2 beating on the fixing lug is rectangular and pierced at a distance "d" from its axis of rotation of a hole in which a tongue is riveted 7.The riveting is such that the tongue is free in its plane of movement. The fixing lug is substantially thicker than the flap and is fixed to the frame 8 of the door 9 , its knuckle flush with the plane of the wall and the door. The range of movement of the shutter 2 when the device is placed is slightly greater than 180.'a tongue 7,. flat, slightly thinner than the width of the groove and mushroom-shaped, at its axis of rotation 10 located in the middle of the mushroom. It is riveted to flap 2 on the side opposite the plane of this flap intended to block the door. a preferred embodiment of the invention the tongue may have the following proportions
. d + = 2 x dt
. d1 = I / 2 x d3. d1 = d - (e + t) t depending on manufacturing tolerances
Its center of gravity is located vertical to its axis of rotation IC so that the tongue in the locked position has a sraetric position relative to a vertical passing through IO.

The locking device is fixed so that the axis of rotation 3 of the hinge is vertical and the knuckle 4 is flush with the door frame.

This is the combined effect of the movement of the flap 2 and the tongue 7
snowshoeing combined with its and the action of gravity form after having released the tongue of the safety hook and by moving the swinging flap, the latter first slides freely on the rounded part of the knuckle at an angle with its position free from the order to come and fit into the groove 5 provided for this purpose door is then absolutely blocked and the flap is flush with the inner plane of the door leaf perpendicular to the fixing lug. Indeed if pressure is exerted from the outside on the door, the latter exerts the same pressure on the flap which is blocked by the part of the tongue housed in the groove which abuts against the heels I 'of said groove (see Fig. 4 part In addition, the pressure is exerted on the plane of the swinging shutter or, failing this, on a vertical line very close to the knuckle, in a place of great resistance of the device, with a minimum leverage effect. live now the bracket (I2) in the doorframe would jump, then
on the one hand, the respective positions of the fixing lug and the door frame mean that the device is liable to get caught
. on the other hand the triangular shape of the recess in the door frame prevents the fixing lug from slipping and contributes to the security of the system.

 In a particular application of the device, its manual and direct use of the interior of the dwelling is replaced by an indirect use of the exterior of the dwelling thanks to the combined action of a mechanical transmission system and a remote control system.

In this particular application the shutter 2 and the tongue 7 are respectively modified and replaced to allow the complementary mechanical system remotely controlled to position the locking device.

 In this variant, the shutter 2 is modified to constitute a hollow block I3 of adequate size to be able to accommodate and pivot there a blocking piece 14 to which a movement of sufficient amplitude is transmitted by a transmission system I5, I6 ma by an I7 motor controlled remotely by one of the known systems suitable for the present invention. coalairesaires - your forms of the flap I3 and of the part 14 allow the device to operate. Indeed according to a preferred embodiment of the variant of the invention the flap beating in the form of a rectangular parallelepiped having only three sides, one intended to block the door, the other two parallel and of the same size serve as and support for a blocking part are pierced with two holes intended to allow the axis of rotation of the part to pass. The latter has the form / of an "L" whose branch to which the transmission rod 15 is articulated is slight 0 or opposite direction from the end to be housed in the groove.

This particular shape allows, when the blocking piece pivots on its axis, to ensure the minimum of lateral displacement to the transmission rods.

The part is further reinforced at its axis of rotation to ensure an acceptable mechanical resistance to the device. Finally to ensure the best resistance of the device to the forces which it would undergo in the event of pressure exerted on the door, 1 axis of rotation of the blocking piece is located at the intersection of a circle having for its center the axis of rotation of the shutter and of radius R = I, 9 xr and of a straight line parallel to the plane of the fixing lug and located at a distance kegale to I / 3 of r; r is the radius of the circle delimiting the contours of the knuckle and the same center; R is also 5.7 d (see Figure I3 when the device seen in section AA is in the closed position).

The two elements of the device as described above then allow the system to operate. On closing, the rods I5 and I6 pushed by the action of the motor controlled remotely by the user, causes the rotation of the part I4, the rotation on its axis I8 is uninterrupted when its end I9 comes to touch the rounded part of the knuckle and then causes the entire movement of the block I3. This rotation continues until the point where the end of the blocking piece arrives at the throat; the rotation of the swinging block, the blocking plane of which is then perpendicular to the fixing lug, stops while that of the blocking piece resumes and ends when its end touches the bottom of the groove. the door is blocked.

 Upon opening the reverse operation is carried out. The rods I5 and I6 pulled by the action of the motor, the blocking piece emerges from the throat of the knuckle by pivoting on its axis, the beating flap I3 remaining fixed, up to the point where it comes to bear on the stop 20 provided for this purpose on the inner part of the flap then causing the movement of the flap in which it pivots.The movement of the assembly continues until the blocking plane 2I of the shutter is in a position perpendicular to the plane of the wall, i.e. aligned with the plane of the mounting bracket; the door can then be opened.

 The advantage of the modified remote control system is that, undetectable from the outside, it conveniently completes the traditional lock which does not disappear and makes entry into the house by break-in much more difficult.

 Backups commonly used in remote locking systems are used here; in particular, it will be ensured that the energy required to close the device is greater than that required to open it.

Claims (3)

CLAIMS I) Door blocking device characterized in that it comprises three metal parts articulated together. Two constitute a hinge whose rounded shape of the knuckle provided with a groove allows the third, a tongue in the shape of a racket, fixed and movable on the hinged flap of the hinge, to block the door when the tongue, in the vertical position is housed in the groove of the knuckle. 2) Device according to. claim I characterized in that the knuckle has a blocking groove and a safety recess / located smét ~ ic in relation to its axis of rotation, the respective positions of the groove and the axis of rotation being such that the tongue, when the locking position of the device is taken, occupies a position perpendicular to the plane formed by the fixing lug.  3) Dispcsitif according to claim I characterized in that the tongue is in the form of 9th racket, its axis of rotation is located in the middle of the sieve and its -l2: .che is swollen at its end, the whole contributing by positioning against gravity of said tongue below its axis of rotation to ensure - the latter a perfectly stable position when free on the axis and in the locking position. The typical proportions allowing such - ~ sitioning are then as follows:  .d1 = 2 x d2  .d1 = I / 2 x d3  .d1 = d - (e + t); t = manufacturing tolerance, Device according to claim I characterized in that the fixing lug is triangular.  55 Device according to claim I characterized in that the shutter is modified to be able to support a part of parallelepipid shape, of eme plane of rotation as the movable shutter and which connected to a transmission system controlled remotely according to one of the systems known and adapted to the present invention, peraet to close or open the locking system.  6) Device according to claim 5 characterized in that the shutter has the shape of a rectangular parallelepiped having only three faces, one intended to block the door, the other two parallel and of the same dimension serving as support for a blocking part and pierced with two holes intended> to allow the axis of rotation of said part to pass. 7) Device according to claims 5 and 6 characterized in that the face of the shutter intended to block the door is provided on its inner face with a stop. R) Device according to claims 5 and 6 characterized in that the blocking part is in the shape of an "L" swollen at its axis of rotation and the branch of which on which is articulated the transmission rod is curved in the opposite direction from the end of the part to be housed in the groove 9) Device according to claims 5 and 6 characterized in that the position of the axis of rotation of the locking piece, positioned from the closed position of the device, is located at the intersection of a circle having for center the axis of rotation of the shutter and of radius R = I, 9 xr and of a straight line parallel to the plane of the fixing lug and situated at a distance d 'from this plane equal to I / 3 of r; r is the radius of the circle delimiting the contours of the knuckle.