FR2694328A1 - Locking arrangement of a movable closure member of an opening, such as a door. - Google Patents

Abstract

The invention relates to a locking arrangement for a movable member for closing an opening. This arrangement is of the type comprising a housing (5) preferably mounted on the fixed structure (2) of the opening and enclosing a locking mechanism (4) of a device forming a bolt (3) integral with the movable member. (1) and a remote controlled locking device (8) for locking the locking mechanism (4) in its locking position of the bolt device (3) and comprising a locking element (60) movable between locking positions and release of the mechanism (4), and a connecting device (9) interposed between the locking device (8) and the locking mechanism (4). The locking device (8), the connecting device (9) and the locking mechanism (4) are arranged so as to be aligned in the axis of the housing, the locking element (60) is movable parallel to the axis of the housing in a rectilinear reciprocating movement and the connecting device (9) is designed as a multiplier gear comprising several pinions (30, 31, 32).

Description

The invention relates to the locking arrangement of a movable member of

  closing an opening, such as a door, of the type comprising a housing preferably mounted on the fixed structure of the opening and enclosing a locking mechanism of a device forming a bolt integral with the movable member and a locking device remote control device for locking the locking mechanism in its locking position of said latch device and comprising a locking element movable between locking and releasing positions of said mechanism, and a connecting device

  interposed between the locking device and the locking mechanism.

  Locking arrangements of this type are already known, but they have the major disadvantage that the force to which the locking arrangement can withstand is not high enough, that the housing is too bulky for certain applications and applications. that the structure is too complex

  and requires too much installation space.

  The object of the present invention is to propose a locking arrangement of the type described above, which no longer has the disadvantages which

have just been stated.

  To achieve this purpose, the housing is designed as an elongated housing in which the locking device, the connecting device and the locking mechanism are arranged to be aligned in the axis of the housing, the element locking device is movable parallel to the axis of the housing in a rectilinear movement back and forth and the connecting device is in the form of a multiplier gear comprising a plurality of pinions whose axes are parallel, perpendicular to the longitudinal direction of the housing and

  juxtaposed in this longitudinal direction of the latter.

  According to an advantageous characteristic of the invention, the locking mechanism comprises at least one pair of locking jaws, made in the form of rotating members about axes perpendicular to the longitudinal direction of the housing and offset in the longitudinal direction of the latter. and each having at their periphery a portion shaped as a locking means of said bolt device, in cooperation with the locking means portion of the other jaw, at least the rotary member adjacent to the multiplier gear having on a portion of its periphery. , angularly offset from the locking portion, a toothed sector meshing with the device

multiplier mentioned above.

  According to another advantageous characteristic of the invention, the other rotary jaw member also comprises at its periphery, angularly offset from its locking portion, a toothed sector which meshes with a toothed sector of another rotary member connected to the first jaw so as to turn

  with it in the same direction and in synchronism.

  According to yet another advantageous characteristic of the invention, the multiplier gear comprises a first pinion provided with two different peripheral tooth sectors with different primitive radii, the sector whose lower radius meshes with the toothed portion of the first jaw and the sector having a larger pitch radius meshes with the toothing of a smaller pitch radius of a second pinion which has a further peripheral toothing of a larger pitch radius adapted to rotate a circular plate to which a link device is eccentrically articulated actuating the aforementioned locking element, where appropriate via a third pinion having a toothing of a lower pitch radius. The invention will be better understood and other purposes, features, details

  and benefits of it will become clearer during the description

  explanatory text which will follow with reference to the accompanying schematic drawings given solely by way of example illustrating an embodiment of the invention and in which: FIG. 1 is a cross-sectional view of the locking arrangement according to the invention; along line II of Figure 3, and shows this arrangement in the closed position of the opening; Figure 2 is a view similar to that of Figure 1, but shows the arrangement in the open position of the opening; FIG. 3 is a view in the direction of the arrow III of FIG. 1 and shows, on a larger scale, part of the arrangement according to FIG. 1, the front walls of the bottom and of the housing cover having been removed and the walls upper and lower cut; Figures 4 and 5 are views similar respectively to Figures 1 and 2 and show on a larger scale a portion of the arrangement according to the invention. In the example shown in the figures, the locking arrangement according to the invention is illustrated in its application to a door structure, the opening of which then forming the movable closing member The opening and the frame of the door structure is indicated by the reference numerals 1 and 2, respectively. The door 1 carries a bolt device 3 integral with the door and intended to cooperate with the locking mechanism 4 locked in a door.

  housing 5 which is fixed on the frame 2.

  The housing 5 is of elongated shape and is formed by a first U-shaped section 6 intended to form the bottom of the housing and a second U-shaped section 7 which forms the housing cover and covers the bottom profile 6. in the axis of the housing the locking mechanism 4 of the pene device 3 when the door is closed, a locking device 8 adapted to lock the mechanism 4 in its locking position and a connecting device 9 disposed between the locking device 8 and the locking mechanism This device 9 is configured to multiply the locking force produced by the

  locking device 8 at the locking mechanism 4.

  The locking mechanism 4 comprises a pair of locking jaws bearing the references 11 and 12, respectively. The jaws have the shape of circular disks each with a radial protrusion 13 provided with a notch 14. Each jaw is pivotally mounted about a pivot 15 fixed at its ends in the bases of the bottom and cover profiles 6 and 7 The two jaws 11 and 12 are laterally offset in the axis of the housing As shown in the figures, the two notches 14 which give the protuberances the general shape of U have branches whose shapes are different to perform different functions The branch 17 near the side wall of the housing has the shape of a hook while the end of the other branch 18 has a substantially frustoconical profile parts of the growth 13 of the jaws overlap For this purpose the thickness of these parts is half that of the remaining part The two jaws 11 and 12 are arranged relative to each other so that when the door is open, the ends of the two hook branches 17 are spaced apart from one another to allow engagement. in the space 18 delimited by the notches 14 of the two overlapping zones, a peg member 20 in the form of a loop of the latch device secured to the door, through a window 21 in the front wall of the profile at the two ends 17 of the jaws As shown in FIGS. 2 and 5, in this open state of the door, the two other branches 18 overlap each other and their front face

  internal form a bowl in the shape of a V in front of the bolt member 20.

  When the latter is pushed into the bowl, the levers 11 and 12 pivot in the direction of arrows respectively Fl and F 2 to the position shown in Figures 1 and 4 in which the two hook branches are

  overlap each other by passing through the loop of the bolt member 20.

  The latter is thus trapped by the two protuberances of the jaws.

  Each jaw 11, 12 bears on its peripheral part diametrically

  opposed to growth 13 a toothed sector 22.

  The locking mechanism 4 comprises a third locking jaw 24 which is pivotally mounted about an axis 25 parallel to the axes 15 and arranged in the same plane as the latter. This third jaw also comprises at its periphery a toothed sector 26 identical to the sector 22 of the two locking jaws of the latch device The third jaw 24 is disposed on the side of the corresponding end of the housing and its sector gear 26 meshes with the toothed sector 22 of the adjacent jaw 12 The locking jaw 11 and the third jaw 24 are connected by a U-shaped driver 25 constituting a rod which extends substantially parallel to the walls of the bottom profile 6 and is hinged at its ends respectively at locations near the periphery of the jaws 11 and 24. The function of the trainer rod is to synchronize in rotation the two jaws which it connects so that the jaw 24 can rotate the jaw 12, the latter then moving in the opposite direction of the jaw 11, but

with the same angular velocity.

  The toothed sector 22 of the jaw 11 is adapted to actuate the

connecting device 9.

  This connecting device 9 comprises a gear multiplier formed by a train of three gears 30, 31 and 32 and a set of three links 34, 35 and 36, the latter being articulated to the locking device 8 The axes of rotation of the gears are laterally offset in the axial direction of the housing and extend parallel to the axes of rotation 15 of the jaws The axes of articulation of the

  rods are also parallel to these.

  The first pinion 30 comprises two toothed sectors 38, 39 concentric but different primitive radii and diametrically opposite with respect to the axis of rotation 40 The toothed sector of smaller pitch radius has the same module of teeth as the sector 22 of the jaw 11 and meshes it The toothed sector 39 of a smaller gear module and whose prime radius is larger engages a first ring gear 42 of the second pinion 31 This ring 42 has a relatively small diameter The pinion 31 comprises a second a toothed peripheral ring 43 with a larger diameter which meshes with the toothing 44 of smaller diameter of the third pinion 32 which is integral in rotation with a circular plate 45 at the periphery of which is articulated the link 34 This link is articulated at its other end to the rod 35 which is in the form of a lever which pivots about a fixed axis 48 At the opposite end The lever 34 is hinged to the lever 35 at a location 50 located between the pivots 48 and 49 of this lever. The end of the link 36 is articulated.

to the locking device 8.

  The locking device 8 comprises an electromagnet 51 whose

  mobile core 52 is provided with a rod 53 which passes axially through the electro-

  magnet, is mobile parallel to the axis of the housing and enters a mechanism

  lock 54 which is controlled by the electromagnet 51.

  This locking mechanism comprises a sleeve of rectangular cross-section 55 fixedly mounted in the housing. This sleeve, which extends parallel to the axis of the housing, receives the hollow end 55, also of section.

  rectangular cross-section, of a rod 56 which is hinged at 57 to the rod 36.

  In the internal space of the hollow end 58 of the rod 56 is housed a body 60.

  It is axially movable in its housing, against a return spring 61 which is supported on the bottom of the cavity of the end 58 The body 60 is fixedly mounted on the free end of the rod 53 This body, of substantially rectangular cross-section, comprises on the electromagnet side 51 a portion 63 of dimensions complementary to those of the internal space of the rod 56 and a portion 64 situated on the spring-side 61 of which the height is reduced with respect to the height of the hollow space, symmetrically with respect to the median plane of the rod. The two portions 63 and 64 are connected by a median portion 65 which has inclined surfaces which constitute ramps cooperating with each other. with a small body of revolution, namely a small roller 68 For each roller 68 is formed in the wall of the end 58 a light 70 through which the roller can partially penetrate a notch Advantageously triangular 71 made in the wall of the sleeve 55 Referring to Figures 4 and 5, it is easily understood that the locking body 60 when moving in the end 58 against the spring 61 pushes the rollers through the When the rollers are held in this position, the rod 56 is locked axially in the sleeve. On the other hand, when the locking body 60 moves in the opposite direction, to occupy the position according to FIGS. can move in the sleeve in the

  measure o the rollers 70 will be pushed out of their notches 71.

  The arrangement according to the invention is equipped with a self-locking device 72 with independent circuit, which is located in the housing in axial alignment with

  the electromagnet 51 and is designed to block the mobile core of this

  this. This overlocking device 72 essentially comprises an electric motor 73 whose rotary output shaft 74 extends parallel to the axis of the housing and carries at its end an intermediate piece 75 which is integral in rotation with the output shaft 74 and carries at its free end a diametral pin 76 which engages in an axial recess 78 in the form of a slot which diametrically traverses a screw 80. The screw is integral in rotation with the intermediate piece 75 and thus with the output shaft 74 The screw 80 passes axially through a nut 81 which is fixedly mounted in the housing, cooperating with the internal threading of this nut. The end 82 of the screw which moves axially in response to the rotation of the output shaft of the motor is adapted to lock the movable core 52 in its retracted position in the electromagnet 51 In a second axial position, the end 82 of the screw 80 p lets the mobile core 52 out of the magnet to occupy its

  position shown in Figures 2 and 5.

  It is further noted that the screw 82 has a flange 83 which allows

  the actuation of two end-of-travel contacts 85 and 86 of the screw 80.

  The operation of the locking arrangement will be described below.

  according to the invention, which has just been described with reference to the figures.

  To close the door, that is to say to go from the state shown in Figure 2 to that shown in Figure 1, it pushes the bolt device 1 in the space formed by the notches 14 of the jaws of blocking 11, 12 Under the effect of this device, the locking jaw 1 1 rotates in the direction of the arrow F 1, the jaw 12 in the direction of the arrow F 2, this rotation being performed at the same angular speed that of the jaw 11, but in the reverse direction This rotational movement of the jaw 12 is provided by the jaw 24 which moves in synchronism with the jaw 11 which drives the pinion 30 in rotation in the direction of the arrow F 3 which on the other hand causes the rotation of the pinion 31 along the arrow F 4 The pinion 31 rotates the pinion 32 in the direction of the arrow F 5 This pinion being integral in rotation with the plate 45 to which is articulated the rod 34, the rotation of the pinion causes the linear axial displacement of the rod 56 of the locking device, through the rods 34, 35 and 36 Due to the multiplication effect of the gear train, the rotation at an angle of 60 of the locking jaw 11 of the locking device 4 causes a rotation of the pinion 32 and the hinge plate 45 at an angle of about 350, in the direction of the arrow F 5 Under the effect of this rotation, the rod 56 performs a movement of va which is symbolized by the arrow F 6 and, because of the pivoting angle of 3500 of the plate 45, stops in the position shown in Figure 1 in which the rod is fully inserted into the sleeve 55 of the locking device In this position, the rollers 68 are opposite the notches 70 For locking the locking device

  in the closed position of the door, it is now sufficient to excite the electro-

  magnet 51 of the locking device to cause the displacement of the movable core 52 in the position shown in Figure 1, which forces the rollers 68 in the notches 70, which blocks the rod 56 in its retracted position in the sleeve 55 locking the door in this position can be ensured additionally by the actuation of the overlock 72 To this end it will control the axial movement of the screw 82 in its end position that

shows figures 1 and 4.

  For the opening of the door, it is first necessary to suppress the overlocking effect and cause the motor 73 to remove the screw 82 in the position shown in FIGS. 2 and 5. Then, the excitation of the electro- magnet 52, which allows the spring 61 to push the locking body 60 axially in the position shown in Figures 2 and 5, o the movable core is removed from the electromagnet In this position pushed back, the locking body 60 eliminates the blockage of the rod 56 in the sleeve 55 of the locking device, through the rollers 68 Si under these conditions is exerted on the door a tensile force in the direction of the arrow F 8, it causes the rotation of the locking jaw 11 in the direction of the arrow F 9, which causes the rotation of the gears 30, 31 and 32 respectively in the direction of the arrows F 10, F Il and F 12 With this pinion 32, the hinge plate 45 of the rods 34 , 35 and 36 moves at an angle of 35 0 to the position shown in Figures 2 and 5, in the direction of the arrow F 12, which has the effect that the rod 56 is not again fully pushed into the sleeve 55 of the locking device but stops at a short distance before this position, as illustrated in FIGS. 2 and 5, the movement of the rod 56 being possible because

  since the locking effect by the rollers 68 has been eliminated.

  The locking arrangement according to the invention, as it has been described and shown, makes it possible, by varying the pitch diameters of the teeth, to increase the amplitude of rotation of the jaws and thus to reduce

8 2694328

  the tensile force on the locking element, to obtain a high efficiency and a high degree of movement and thus reduce the noise and avoid adjustment systems setting position and reduce the size of the arrangement.

Claims (9)

  1 Locking arrangement of a movable closure member of an opening such as a door, of the type comprising a housing preferably mounted on the fixed structure of the opening and enclosing a locking mechanism of a device forming integral peg the movable member and a remote-controlled locking device for locking the locking mechanism in its locking position of the latch device and comprising a movable locking element between locking and release positions of the mechanism, and a latching device; interposed connection between the locking device and the locking mechanism, characterized in that the housing (5) is in the form of an elongate housing in which the locking device (8), the connecting device (9) and the locking mechanism (4) are arranged to be aligned in the axis of the housing, the locking element (60) is movable parallel to the axis of the box in a rectilinear movement back and forth and the connecting device is formed as a gear multiplier comprising a plurality of pinions (30, 31, 32) whose axes are parallel and perpendicular to the longitudinal direction of the housing and juxtaposed in the sense longitudinal of it.   2 Arrangement according to claim 1, characterized in that the locking mechanism (4) comprises at least one pair of locking jaws (11, 12) formed as rotary members about axes (15) perpendicular to the direction longitudinal of the housing (5) and offset in the longitudinal direction thereof and each having at their periphery a portion (13) shaped as a locking means (14) of said latch device (3), in cooperation with the middle portion of locking the other jaw, at least the rotary member (11) adjacent to the multiplier gear (9) having on a periphery portion angularly offset to the locking portion (13)   a tooth sector (22) meshing said multiplier device.   3 Arrangement according to claim 2, characterized in that the other rotary jaw member (12) also has at its periphery, angularly offset from its locking portion (13, 14) a toothed sector (22) which meshes with a toothing (26) of a third rotary member (24) connected to the first jaw (11) so as to rotate in synchronism therewith and in the same way.   4 Arrangement according to one of the preceding claims, characterized in   the multiplier gear (9) comprises a first pinion (30) having two peripheral tooth sectors (38, 39) of different pitch radius, the smaller radius tooth sector meshing with the tooth sector (22) of the first tooth (11). ) and the toothed sector (39) having a larger pitch radius meshes with the toothing (42) of a smaller pitch radius of a second pinion (31) which has a peripheral toothing (43) of a larger pitch diameter adapted to drive in rotation a circular plate (42) to which is articulated eccentrically a link device (34 to 36) for actuating the locking element (60) above, where appropriate via a   third pinion (32) of a lower pitch radius.   Arrangement according to claim 4, characterized in that the link device comprises a pivoting lever (35) multiplier, which is articulated by a rod (34) to the aforesaid circular plate (45) and by a connecting rod (36) to the device locking device (8), the articulation with the connecting rod (34) being situated closer to the axis of rotation (48) of the lever (35) than the articulation at this lever, of the link (36).   Arrangement according to one of the preceding claims, characterized in   that the locking device (8) comprises an electromagnet (51) whose movable core (52) controls the movement of the locking element (60) which comprises ramp means (66) capable of pushing locking elements (68) in locking positions of a rod (56) connected to the device   link (9), in a member (55) which is fixedly mounted in the housing (5).   7 Arrangement according to claim 6, characterized in that the fixed member (55) is formed by a sleeve in which axially engages the hollow end (58) of the rod (56) in which is mounted axially movable under ' effect of the core (52) of the electromagnet (51), against a return spring (61), the locking element (60), that the locking elements (68) are formed by bodies of revolution which are engaged in recesses (70) formed in the hollow end (78) and are capable of partially engaging in notches (71) formed in the underside of the sleeve (55), under the effect ramps (66) provided on the locking element (60).   8 Arrangement according to one of the preceding claims, characterized in   it comprises an overlocking device (72) arranged in the housing (5), axially aligned with the locking device (8) and adapted to lock the latter in the locking position of the locking mechanism (4) in its   closing position of the moving angel.   9 Arrangement according to claim 8, characterized in that the overlocking device (72) comprises an electric motor (73) whose output axis (74) extends parallel to the axis of the housing and is connected to a screw ( 80), integral in rotation but axially displaceable, this screw (80) is axially aligned with the drive shaft (74) and meshes with a nut (81) fixedly mounted in the limp, so that the end (82) the screw (80) is axially displaceable in the housing between an axial locking position of the movable core (52) of the electromagnet (51) in its axial locking position of the locking element (60) and a position in which it allows the movement of the   movable core (52) in its release position of the locking member (60). he