FR2891535A1 - Elevator safety installation for e.g. handicapped person, has safety device opening door when platform attains upper level, and self-locking interconnection mechanism with platform and door locking parts and interconnection part - Google Patents

Abstract

The installation (1) has a platform (5) for accessing a level (P1) and an upper level (P2). The access to the level (P2) is secured by a door (11). A safety device (13) opens the door when the platform has attained the level (P2) and locks the platform in position, when the door is in open state. The device has a self-locking interconnection mechanism with a platform locking part, a door locking part and an interconnection part between the platform and the door.

Description

The present invention relates to a secure installation for

  elevator, in particular to allow access to persons with disabilities at a higher level by

  guaranteeing these persons, or any other located at said higher level, the risk of falling from said access. It will therefore especially find its use in private homes and also in all public places that must be able to accommodate people with reduced mobility in the best conditions of access.

  However, it can be extended in all areas requiring the use of an elevator by eliminating the risk of falling, such as for truck platforms, for the loading of goods, where pallet trucks transit between the platform elevating form and floor of the truck in a very variable time depending on the load to move.

  The lifts for disabled people consist mainly of a lifting platform that allows to go from a first level to a second level, higher than the first, the elevation of the platform being done by all means of Lifting known to those skilled in the art, such as a worm or a belt driven by a motor, or a pneumatic cylinder or hydraulic.

  In order to guarantee the safety of persons at the upper level, and in particular to prevent the risk of falling, such as that of a child, access to said higher level is generally closed by means such as a door or a door. fence. These closure means remain however manipulable regardless of the position of the platform; it is therefore not excluded that a person fails to close the door or the barrier, or that a child, careless and unconscious by nature, does not open the said door or barrier, causing his own fall or that of a other person.

  Elevator platforms are intended for BGA-FR-17 TEXT REMOVAL 2 - receive wheelchairs for disabled persons, or possibly persons with reduced mobility; these therefore take a longer or shorter time to evacuate said platform and access the upper level because they move more slowly; they are therefore provisionally in an intermediate position, straddling the platform and the firm ground of said upper level. In case of failure of the lifting means, the platform may eventually resume its initial position and down to the lower level; in the case where this failure occurs when the disabled person is in the intermediate position, it is then destabilized, which may eventually cause its fall.

  There are known secure installations for elevating devices, such as those used in elevators; these installations generally use a device that allows the opening of an automatically controlled door when the platform is in front of said door, said platform then being immobilized in position as long as the door remains open. These devices are automated, and more or less complex design; and although it is possible to adapt them to elevators for handicapped persons, their installation at home and in public places necessitates more or less significant modifications to existing premises. In addition, these installations, intended especially for elevators, require very rigorous preventive maintenance, to avoid any failure of the automation.

  The present invention aims to overcome the drawbacks of existing installations by providing a secure installation particularly suitable for lifts for disabled people, which ensures the maintenance in the closed position of the closing means of the door or barrier type, as the platform does not. has not reached the next level, and then locks the platform into the upper position as soon as the door or gate is opened.

  For this purpose, the present invention relates to a secure installation for an elevator, said elevator comprising a platform allowing access from a first level to at least a second upper level, the access to the second level being secured by means of closing the door type, said installation comprising a secure device allowing the opening of said door when the platform has reached the upper level, then locking said platform in position as said door remains open, remarkable in that the secure device is constituted by a self-locking interconnection mechanism comprising purely mechanical means alternately blocking either the platform or the door.

  Such an invention has the advantage of being of very simple design and easily adaptable in all public or private spaces and all elevators to serve levels whose access must be secure, including those intended to allow access to disabled people, ensuring an optimal level of security. Its purely mechanical design makes it possible remarkably to ensure a smooth operation of the installation, without particular risk of failure of components of electrical or pneumatic nature.

  Other advantages and features of the present invention will become more apparent from the description which will be given of a nonlimiting example of the invention with reference to the appended drawings in which: FIGS. 1 and 2 represent two perspective views, following different angles of the secure installation object of the present invention, - Figures 3 to 5 show the interlocking interconnection mechanism implemented in the secure installation, in several positions of the platform and the door.

  With reference to FIGS. 1 and 2, the present invention relates to a secure installation 1 for BGA-FR-17 TEXTE REMOVAL - 4 - elevator 3, in particular intended to allow access to a level higher than a handicapped person, by guaranteeing this person, or any other person at the higher level, against the risk of falling.

  The secure installation 1 consists of an elevator 3 which essentially comprises a platform 5 and lifting means 7 of said platform for moving it vertically, in both directions, from a first level P 1 to less a second level P2, greater than the first. The elevator 3 is generally equipped with a non-return bar 9 which enhances the safety of the user. The user, initially located at the first level Pl, is positioned on the platform 5, then lowers the non-return barrier 9 which then allows the actuation of the lifting means 7 which move said platform 5 to the second level P2.

  The installation 1 also comprises closing means of the door or barrier type 11 which close the access to the second level P2, thus preventing a person from passing through this access if the platform is not exactly located. in position facing this one.

  In the remainder of the description, in order to facilitate its reading, the term door 11 will be used to define the closing means. The skilled person may, however, consider any implementation having the same function, such as a rigid barrier or simply a chain, depending on the degree of risk of falling into the environment where it is installed, said barrier or said chain having to have fastening means design adapted to the installation.

  The installation provided with its secure device 13, is remarkable in that it blocks the door 11 in the closed position as the platform 5 has not reached the upper level P2, and once the level reached, the person disabled can then open said door 11 and the opening thereof then blocks the platform 5 in position at P2, thus ensuring its accessibility in complete safety.

  BGA-FR-17 TEXT REMOVAL - 5 - The secure device 13, as shown in FIGS. 3 to 5 in several operating phases, is remarkable in that it consists solely of a self-locking interconnection mechanism 15 between the door 11 and platform 5, requiring no automated and / or electrical assistance.

  The mechanism 15 is remarkable in that it comprises purely mechanical means that alternately block either the platform 5 or the door 11; these purely mechanical means consist simply of three mechanical parts, namely: a blocking part 17 of the platform 5, a blocking part 19 of the door 11 and an interconnection piece 21 between the platform 5 and the door 11.

  The part 17 is mounted in pivot connection 23 on the frame 25 of the secure device 13. The part 17 has a concavity for example V-shaped, U or C. According to a preferred and nonlimiting mode of design on which the following description is based, and as shown in Figures 3 to 5, the part 17 is in the general shape of V; the pivot connection 23 is disposed at the tip 27 of the V of the part 17. The general V-shaped is intended to receive a stop 29 integral with the platform 5; the position of the abutment 29 relative to that of the pivot connection 27 is such that during the upward vertical translation of said platform 5, this abutment 29 fits into the concavity 30 of the V and comes into resting on the first side 31 of the V, initially in an almost horizontal position, as shown in FIG. 3. The upward vertical movement of the stop 29 thus causes the workpiece 17 to pivot relative to the frame 25 the platform reaches the second level P2; in this position, the second side 33 of the V is then preferably inclined slightly above the horizontal, as shown in Figures 4 and 5. It is thus ensured that in case of malfunction of the lifting means 7 the second side 33 of the V is in opposition to BGA-FR-17 TEXTE REMOVAL 2891535 6 to the downward movement of the stop 29 of the platform 5.

  The part 17 is also mounted in pivot connection 35, at the end 37 of the first side 31 of the V, with the interconnection piece 21; the pivoting of the part 17 relative to the frame 25 thus transmits a movement to the interconnection piece 21.

  In a preferred embodiment is not limiting, the angle of the V of the part 17 will be between sixty and ten ninety degrees (60 to 90). However, it will be possible to envisage any type of shape for the part 17, the latter having a concavity and fulfilling the same functions as those described above for the general shape of V.

  According to FIGS. 3, 4 and 5, the blocking part 19 of the door 11 is mounted in pivot connection 39 relative to the frame 25 of the secure device 13. The part 19 has a concavity, for example V-shaped, U-shaped or Dec . According to a preferred and non-limiting design mode on which the following description is based, and as shown in Figures 3 to 5, the part 19 is V-shaped which has, for example, an angle between twenty and forty degrees (20 and 40). The position of the pivot connection 39 on the piece 19 is preferably along the axis of symmetry and substantially halfway up the V. The V-shaped is intended to receive a stop 41 disposed, for example, on the blank 42 of the door 11; when the door 11 is in the closed initial position, as shown in Figure 3, the stop 41 is disposed in the concavity 43 of the V, said V being in an inclined position, opposite to the opening direction of the door, namely the direction of clearance of the stop 41 out of the V of the piece 19.

  The part 19 is mounted in sliding connection with the interconnection piece 21. For this, the interconnection piece 21 is provided with an L-shaped groove 45 in which are arranged guides BGA-FR-17 TEXT REMOVAL On the part 19, these guides being implemented by the pivot connection 39 and by a guide pin 47. The guide pin 47 is preferably arranged at the tip 48 of the V of the piece 19, the straight line defined by the guide pin 47 and the pivot connection 39 being preferably close to the axis of symmetry of said V.

  As for the piece 17, the piece 19 may have any type of shape, the latter having a concavity 43 and performing the same functions as those described above for the general shape of V.

  As shown in Figure 3, in the initial position where the door 11 is closed and the platform at the first level P1, the interconnection piece 21 is in sliding connection with the piece 19 along the long side 49 of the form in L. In this position, the piece 19 is locked in the long side 49 of the groove 45, which prevents the pivoting of said piece 19 relative to the frame 25 and thus prevents the extraction of the stop 41 from the concavity 43 of the V ; it is therefore impossible to open the door 11.

  The pivoting of the part 17, generated by the upward vertical translation of the stop 29 of the platform 5, causes the displacement of the interconnection piece 21 which makes it possible to pass from the position shown in FIG. represented in FIG. 4; during this transition, the interconnection piece 21 slides along the first side 49 of the groove 45 in L and with respect to the axis of the part 19 defined by the pivot connection 39 and the guide pin 47.

  FIG. 4 represents an intermediate step where the platform 5 has reached the upper level P2 and the door 11 is still closed, but can be opened. Indeed, in this position, the stop 29 is inserted into the V of the part 17, and the pivot connection 39 of the part 19 is in the angle 51 of the groove 45 L. The piece 19 can then pivot relative to the frame 25 under the action of the force exerted by the abutment 41 BGA-FR-17 TEXTE REMOVAL - 8 - on said piece 19 during the opening of the door 11; the pivoting of the piece 19 generates a support of the guide pin 47 on the interconnection piece 21; it then pivots relative to the part 17, simultaneously causing its displacement relative to the part 19. The pivot connection 39 then slides along the short side 53 of the L and the guide pin 47 slides along the long side 49 , until the guide post 47 reaches the angle 51 of the groove 45 where the axis of the part 19, defined by the guide pin 47 and the pivot connection 39, is along the short side 53 groove 45 as shown in Figure 5, in which position the stop 41 is extracted from the V of the part 19 and the door 11 is open. The interconnection piece 21 is then locked with respect to the piece 19, which consequently prevents the rotation of the piece 17 with respect to the frame 25, and thus blocks the stopper 29 inserted inside the V of said 17. The blocking of the stop 29 in the V therefore eliminates any risk of descent of the platform 5, particularly in case of failure of the lifting means 7.

  Conversely, the descent of the platform 5 is allowed when the door 11 is closed. When closing said door 11, the stop 41 fits into the V of the part 19 which pivots, the axis defined by the guide pin 47 and the pivot connection 39 then passing from the defined position along the short side 53 of the L, shown in Figure 5, at the position defined along the long side 49, shown in Figure 4, allowing the descent of the platform 5; the abutment 29 then translates vertically downward, causing the pivoting of the part 17 and the sliding of the interconnection piece 21 along the long side of the groove 45 in L and along the axis of the part 19 defined by the guide pin 47 and the pivot link 39.

  The design of the interlocking interconnection mechanism 15 requires proper sizing of the three pieces (17, 19 and 21) to first ensure the BGA-FR-17 TEXTE REMOVAL blocking in the V position of the piece 19, as shown in FIG. 3, as long as the stop 29 does not enter the part 17, then to allow the pivoting of said part 19 making it possible to disengage the abutment 41 of the V, as represented in FIG. 4, and finally to guarantee the blocking in position V of the part 17, as shown in Figure 5, as the stop 41 does not enter the part 19.

  As a nonlimiting example, an identical spacing will be chosen between that separating the pivot connection 39 and the guide pin 47 on the part 19 and that separating the pivot connection 23 and the pivot connection 35 on the part 17; concerning the groove 45 in L, the length of the short side 53 will be equal to the spacing between the pivot connection 39 and the guide pin 47 on the part 19, and the length of the long side 49 will be equal to three times that of the small side 53.

  The chassis 25 of the secure device 13 will have, in a preferred and non-limiting mode, the shape of a housing as shown in FIGS. 1 and 2, into which the self-locking interconnection mechanism 15 is inserted; the parts (17, 19, 21) will therefore be of small thickness to limit the depth and bulk of the housing, to facilitate its implementation on the site.

  The parts (17, 19, 21) will, however, be sufficiently sized to mechanically resist in case of failure of the lifting means 7 of the elevator 3.

  The housing of the device 13 comprises, in a preferred embodiment, a notch 55 arranged vertically, as shown in Figure 1; the stop 29 penetrates inside said notch 55 and consequently it comes into contact with the part 17. The stop 29 will therefore have a shape adapted, according to its position on the platform 5, to allow it to be inserted correctly in notch 55 and in V of part 17.

  Similarly, the housing of the device 13 comprises, in a preferred embodiment, a notch 57 disposed horizontally, as shown in Figure 2, BGA-FR-17 TEXT REMOVAL - 10 - to penetrate the stop 41 inside of this to insert it into the room 19. The stop 41 will therefore also have a shape adapted, according to its position on the door 11, to allow to insert it correctly in the notch 57 and in the V of the room 19.

  According to an alternative embodiment, not shown in the accompanying figures, the interconnection piece has a T-slot, inclined in a position identical to that of the L-shaped groove shown in FIGS. 3 to 5, the T-slot. corresponding, in this case, the downward extension of the long side 49 of the groove 45 L.

  This design of the inclined T-slot is remarkable and will preferably be adapted to secure devices 13 equipping installations composed of at least three levels: a ground floor, a first level, and a second level. In this case, the part 17 will preferably have a U-shaped or C-shaped concavity. Thus during the elevation of the platform 5, the stop 29 enters the U-shape or C of the part 17 and the self-locking interconnection mechanism 15 evolves identically to the operation described above. When the platform 5 is at the first level, the pivot connection 39 of the part 19 is in position facing the short side 53 of the groove 45, which then allows the opening of the door 11 and the pivoting of the piece 19, the pivot connection 39 translates in this case along the short side 53.

  When the platform does not stop at the first level and continues to rise to the second level, the stop 29 on the platform is supported on the upper part of the U-shape or C of the part 17 and thereby rotate it until said stopper 29 exceeds the first level and disengages from said U-shape or C-shape. In this case the pivot connection 39 and the pin 47 continue their translation along the long side of the inclined T and said pivot connection 39 exceeds the position corresponding to the short side 53, which prevents the BGA-FR-17 TEXTE REMOVAL - 11 - pivoting of the part 19 and thus keeps the door 11 in the locked position, in a secure mode. The platform continues its elevation to the next level which is itself equipped with a secure device, either with an interconnection piece 21 provided with an L-shaped groove, if it is the last level or with an interconnection piece 21 provided with an inclined T-slot, if it is an intermediate level.

  It will be possible, in a first variant not shown in the appended figures, to also install a door at the level P1 allowing access to the platform 5 of the elevator 3, the closure of said door allowing the actuation of the lifting means 7.

  According to another variant, it may be envisaged to install a door or, preferably, a barrier directly on the elevator, replacing the anti-return bar.

  In this case the door located at the level P1 will be in a preferred and non-limiting mode also equipped with a secure device comprising a self-locking interconnection mechanism similar to that described above, but mounted in an inverted position, the stop 29 on the plate form 5 being blocked in the direction of the rise and not the descent.

  Other implementations of the present invention may be envisaged by those skilled in the art, without departing from the scope of the present invention.

BGA-EN-17 TEXT REMOVAL - 12 -

Claims (8)

  1 - secure installation (1) for elevator (3), said elevator (3) comprising a platform (5) allowing access from a first level P1 to at least a second level P2 upper, access to the second level P2 being secured by door-type closure means (11), said installation (1) comprising a secure device (13) allowing the opening of said door (11) when the platform (5) has reached the level upper P2, then locking said platform (5) in position as said door (11) remains open, characterized in that the secure device (13) is constituted by a self-locking interconnection mechanism (15) comprising purely mechanical means (17, 19, 21) alternately blocking either the platform (5) or the door (11).   2 - secure installation (1) according to the preceding claim, characterized in that the self-locking interconnection mechanism (15) consists of a part (17) for blocking the platform (5), a piece (19) blocking the door (11) and an interconnection piece (21) between these two locking pieces (17, 19), said pieces (17, 19) being mounted in pivot connection (23, 39). ) with the chassis (25) of the secure device (13).   3 - secure installation (1), according to the preceding claim, characterized in that the part (17) for locking the platform (5) has a concavity generally V-shaped, the tip (27) of the V being mounted in pivot connection (23) on the frame (25) and the end (37) of one (31) of the sides of the V being pivotally connected (35) to the interconnection piece (21).   4 - secure installation (1) according to any one of claims 2 or 3, characterized in that the piece (19) for locking the door (11) has a concavity generally V-shaped and is mounted in pivot connection (39) on the frame (25), said pivot link (39) being located approximately on the BGA-FR-77 TEXT V-REMOVAL axis of the V at the mid-height of the V, said piece (19) also being mounted in slide connection relative to the interconnection piece (21).   - Secure installation (1), according to the preceding claim, characterized in that the interconnection piece (21) has a groove (45) L-shaped or inclined T for mounting in sliding connection with the workpiece ( 19) for locking the door (11).   6 - secure installation (1), according to the preceding claim, characterized in that the interconnection piece (21) slides along the long side (49) of the L and relative to an axis defined by the pivot connection (39) and a guide pin (47) on the piece (19), then slide simultaneously along the short side (53) of the L, relative to the pivot connection (39), and along the long side (49), relative to the tenon guide (47).   7 - secure installation (1) according to any one of claims 3 to 6, characterized in that a stop (29) on the platform (5) engages in the concave form of the part (17) during the elevation of said platform (5), causing said piece (17) to pivot relative to the frame (25).   8 - secure installation (1), according to the preceding claim, characterized in that the pivoting of the part (17) for locking the platform (5) causes the translation of the interconnection piece (21) according to the axis defined by the guide post (47) and the pivot connection (39) on the door locking piece (19) until the pivot connection (39) reaches the angle (51) of the the groove (45) L, position in which the platform (5) has reached the upper level P2, allowing the opening of the door (11).   9 - secure installation (1) according to any one of claims 3 to 8, characterized in that a stop (41) on the door (11) disengages from the part (19) for blocking the door (11). ) when it opens, causing said piece (19) to pivot relative to the frame (25) with respect to BGA-FR-17 TEXTE DEPOSE.   - Secure installation (1) according to the preceding claim, characterized in that the pivoting of the piece (19) causes the translation of the guide pin (47) along the long side (49) of the groove (45) L and translating the pivot connection (39) along the short side (53) until said guide pin (47) reaches the angle (51), thereby blocking the workpiece (17) in which it is engaged the stop (29) of the platform (5). BGA-EN-17 TEXT REMOVAL