FR2824582A1 - Motor drive for sliding door comprises independent, self-propelled chassis for attachment to door, running along ground surface on wheels - Google Patents

Abstract

The motorised block (100) includes an electric motor (4), such as is used for operating windows in a vehicle. There is also a battery (5) and an electronic control circuit (6). The motor drives two wheels (7) via a reducing gear, in order to propel itself along, and take with it a sliding door. The motorised block (100) comprises a chassis (1) formed from a U-shaped plate. The horizontal base of the chassis supports an electric motor (4), such as is used for operating windows in a vehicle. There is also a battery (5) and an electronic control circuit (6). Two wheels (7) are provided to carry the device, and are driven by the motor via a reducing gear (13) attached to a vertical plate. Connections (19) are provided on the end of the device, making contact with further fixed contacts (20) in order to charge the battery when the device is parked at one end of its movement. The device is attached to a door (17) in order to move this in the open (O) and closed (F) directions. If complete autonomy is required, the unit may include solar cells to charge the battery.

Description

any of claims 1 to 5.

  LOCKING DEVICE FOR SLIDING GATES

  The invention relates to electric locks for sliding gates. Manually operated sliding gates are generally fitted with a lock comprising a hook-shaped bolt which can engage in a slot forming a keeper situated on the post on which the gate abuts. When the leaf is in the closed position, the bolt is locked in the slot. Whenever you want to open the leaf, it is necessary to actuate the lock using a key to lift the

bolt and release it from the slot.

  This device is particularly ill-suited to motorized sliding gates operated from a distance. Indeed, it requires that the user manually unlocks the lock whenever he wants

order the gate to open.

  This is why there are currently locks that can be actuated automatically when the gate is opened. US Patent 4,434,635 filed March 6, 1984 in the name of F.A.M.A. di Sandra Borgato & C. describes an automated hook lock that can be operated either from

  electrically, either with a key.

  The device described comprises a mechanism that can be controlled electrically. This device comprises coils, a magnetic plate, levers and means forming a spring allowing a bolt in the form of a hook to be held in a lowered position. When the coils are energized, the magnetic field created causes the magnetic plate to move, which then releases a lever. The released lever disengages from the spring means which made it possible to maintain the hook-shaped bolt in the low position. The bolt is then driven by a succession of levers in the raised position. In this

  position, it can be disengaged from the keeper.

  The device also includes a barrel enabling the lock to be actuated using a key. When the user turns the key in the barrel, the. barrel panet pushes back the magnetic plate and in the same way as before, by a lever system, the bolt in the shape of

  hook is moved to the lifting position.

  f This type of lock can therefore be controlled electrically by the automatic gate opening device. In the event of a power cut or the non-functioning of the opening and closing device

  automatic, the lock can be released manually.

  The disadvantage of this device is that it includes many mechanical parts. It is therefore relatively expensive to manufacture

and unreliable in the long run.

  The object of the present invention is to provide an electric lock for a sliding gate that is simple, robust, inexpensive and capable of being

  controlled by an automatic opening and closing device.

  To this end, the invention proposes a locking device for a sliding leaf, characterized in that it comprises an actuator, a lever element, one of the ends of which has a general hook shape, said end being able to be engaged in a keeper, and elastic means to keep the end of the element engaged in the keeper, the actuator being able to exert a force directly on the lever element to disengage the end of

  The hook-shaped element of the keeper.

  The device of the invention comprises a simple mechanism, presenting a minimum of parts. Ceffe characteristic gives it

several advantages.

  In particular, because it includes few mechanical parts, this

  device has an advantageous cost and great ease of assembly.

  In addition, it can be carried out using mechanical elements having simple geometric shapes, therefore easy to machine and

  robust. This gives the locking device great reliability.

  In one implementation of the invention, the actuator is a motor with a linear output stroke capable of being controlled in two extreme positions. Preferred aspects but not the im it itatives of the invention are as follows: - the actuator is capable of being controlled by an automated device for opening and closing the gate, f - the device comprises a manual lock suitable for exert a force on the lever element to disengage the hook-shaped end of the keeper, - the manual lock is a cylinder lock having a pivoting pin capable of exerting a force on a double lever system to disengage the hook from the keeper, - the device comprises a guide finger capable of being engaged in an orifice when the leaf is in the closed position, - the end of the bolt forming a hook has an inclined outer surface capable of coming into contact with an edge of the keeper and causing the element to engage with the keeper, - the device includes a cover to prevent access to the element

  when the leaf is in the closed position.

  Other characteristics and advantages will also emerge from the

  description which follows, which is purely illustrative and not limiting and must

  be read with reference to the appended figures in which: - Figure 1 is a front sectional view of an example of a locking device according to the invention, the hook-shaped bolt of which is in the kissed position, - Figure 2 is a side view of the device of Figure 1, Figure 3 is a front sectional view of the device of Figure 1, the bolt being actuated by an electric motor, - Figure 4 is a front sectional view of the figure device

  1, the bolt being operated manually.

  In FIGS. 1 to 4, the locking device 100 comprises an actuator 1 (of the car electric lock motor type) fixed to the bottom of the housing 2 and whose output axis 3 can translate between two extreme positions corresponding to a minimum extension and a maximum extension along the axis X. The device 100 further comprises a bolt 4 in the general shape of a hook mounted to pivot around an axis 7 and having an extension 5 forming a lever. The part of the hook bolt 4 extends outside the housing, the hook 4 being oriented downwards. A torsion spring 6 keeps the part of the bolt forming a lever 5 resting on

the end of axis 3 of the engine.

  In this way, the translation of the axis 3 of the motor along the X axis causes the rotation of the bolt 4 around the axis 7. When the axis 3 is in the position of maximum extension, the hook end 4 of the bolt is in the raised position. When the axis 3 is in the minimum extension position, the spring 6 exerts a restoring force on the part 5 of the bolt

  forming a lever and brings the hook end 4 back to the low position.

  In FIG. 1, the device 100 is fixed to a sliding leaf 20 by means of screws 8. A column 30 constitutes a stop when the gate is in the closed position. The hook portion of the bolt 4 is located opposite a slot 9 formed in the column 30 constituting the keeper in

which he can come to commit.

  A horizontal guide finger 10 is fixed on the housing 2. This finger consists for example of a rod whose end has a chamfer. This finger 10 is capable of coming to engage in an orifice 11 formed

  in column 30 when the leaf 20 is in the closed position.

  When the gate is closed, the leaf 20 is moved in the direction F. During this closing phase, the hook 4 is in the low position. When the leaf 20 comes close to the column

  , the finger 10 enters the orifice 11, ensuring the guiding of the leaf 20.

  The end of the hook bolt 4 comprises an inclined outer surface 12 coming into contact with the lower edge 13 of the keeper 9 and constituting a guide making it possible to start the rotation of the bolt 4 about its axis 7 in the opposite direction to the needles of a watch. This rotation generates the lifting of the end of the hook 4. This lifting allows the progressive engagement of the hook 4 in the keeper 9. When the hook 4 is fully engaged, ie return spring 6 entrainé {a rotation of the bolt 4 in the clockwise and the latching of the

hook 4 in strike 9.

  A cover 14 secured to the housing ^ tier 2 prevents access to the bolt 4 when the gate is in the closed position. This cover 14 consists of a U-shaped piece which envelops the horizontal part of the bolt 4. In this configuration, it advantageously makes it possible to prevent a person from being able to lift the bolt 4 by sliding an element between the leaf 20 and

column 30.

  In FIG. 3, the opening of the leaf 20 is controlled. The motorized opening and closing device connected to the motor by the connections 15

  controls the supply of motor 1 for a predetermined duration.

  The axis 3 of the motor 1 moves to the position of maximum extension, causing the rotation of the bolt 4 around the axis 7 in the anticlockwise direction. This rotation generates the lifting of the hook 4 and its disengagement of the keeper 9. The leaf 20 can then move in the opening direction O. At the end of the predetermined time, the power to the motor 1 is cut, the axis 3 returns to the extended position

  minimum and hook 4 returns to the low position.

  In FIG. 4, the leaf 20 is opened manually. To this end, a cylinder lock 16 is actuated using a key. The bit 17 of the barrel 16 pivots and comes to bear on a lever 18 which can pivot about an axis 19 and comes to bear on the part of the bolt 5 forming a lever. This double lever system advantageously allows to multiply the torque exerted by the user on the key. The rotation of the key in the barrel 16 causes the rotation of the bolt 5 anticlockwise. In the same way as in FIG. 3, this rotation generates the lifting of the hook 4 and its disengagement of the keeper 9. The leaf 20 can then be moved ma n ue lement sel in the direction O.

Claims (8)

REVEN DICATIONS   1. Locking device for sliding leaf (20) characterized in that it comprises an actuator (1), an element (5) forming a lever, one of the ends (4) of which has a general hook shape, the said end ( 4) being able to be engaged in a keeper (9), and elastic means (6) for holding the end (4) of the element engaged in the keeper (9) 7 the actuator (1) being able to exert a force directly on the element (5) forming a lever to disengage the end (4) of the element in strike form of the keeper (9).   2. Device according to claim 1, characterized in that the actuator (1) is a linear output stroke motor capable of being   controlled in two extreme positions.   3. Device according to one of the preceding claims, characterized   in that the actuator (1) is able to be controlled by a device   automated gate opening and closing.   4. Device according to one of the preceding claims, characterized   in that it further comprises a manual lock (16) capable of exerting a force on the element (5) forming a lever to disengage the end (4) of   The hook-shaped element of the keeper (9).   5. Device according to claim 4, characterized in that the manual lock (16) is a cylinder lock having a pivoting pin (17) capable of exerting a force on a double lever system for   disengage the hook (4) from the keeper (g).   6. Device according to one of the preceding claims, characterized   in that it comprises a guide finger (10) capable of being engaged in a   orifice (11) when the leaf (20) is in the closed position.   7. Device according to one of the preceding claims, characterized   in that the end (4) of the hook element has an inclined outer surface (12) capable of coming into contact with a flange (13) of the   keeper (9) and cause the engagement of the element (4) in the keeper (9).   8. Has one of the previous vendicaBons in the living room, characterized in that the compound comprises a cover (14) to prevent the sccAs lament (4)   Iprsque vantaU (20) is in postman Burma.