EP3464762A1 - Device for locking and unlocking a manhole cover on a frame by means of a key, with the option of automatic keyless locking of said manhole cover on the frame - Google Patents

Device for locking and unlocking a manhole cover on a frame by means of a key, with the option of automatic keyless locking of said manhole cover on the frame

Info

Publication number
EP3464762A1
EP3464762A1 EP17729185.3A EP17729185A EP3464762A1 EP 3464762 A1 EP3464762 A1 EP 3464762A1 EP 17729185 A EP17729185 A EP 17729185A EP 3464762 A1 EP3464762 A1 EP 3464762A1
Authority
EP
European Patent Office
Prior art keywords
opening
buffer
bolt
key
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17729185.3A
Other languages
German (de)
French (fr)
Other versions
EP3464762B1 (en
Inventor
Sylvain Jean-Jacques Daniel Ghislain DEBUCHY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EJ Emea SAS
Original Assignee
EJ Emea SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EJ Emea SAS filed Critical EJ Emea SAS
Priority to PL17729185T priority Critical patent/PL3464762T3/en
Publication of EP3464762A1 publication Critical patent/EP3464762A1/en
Application granted granted Critical
Publication of EP3464762B1 publication Critical patent/EP3464762B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/006—Locks or fastenings for special use for covers or panels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1481—Security devices, e.g. indicating unauthorised opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/18—Closures or guards for keyholes shaped as lids or slides
    • E05B17/186—Closures or guards for keyholes shaped as lids or slides sliding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys

Definitions

  • Locking and unlocking device by means of a key of a buffer on a frame with possibility of automatic locking without key of this stamp on the frame
  • the present invention relates to a locking and unlocking device with a key of a buffer or cover on a frame, including the manhole.
  • Document FR 2 979 368 discloses such a device comprising a latch integral with the buffer which has an opening opening for access to the latch for the key which comprises an arm, one end of which makes it possible to maneuver the latch when the key is introduced into the opening of the buffer of a locking position in which a bolt of the lock is held prisoner of a striker of the frame to an unlocked position for which the bolt is released from the striker.
  • This lock comprises a rotor rotatably mounted in the buffer, accessible at one of its ends through the opening opening and carrying at its opposite end the bolt constituted by a substantially rectangular flat transverse arm so that the rotation of the Rotor under the action of the key causes the pivoting in its own plane of the bolt between its positions prisoner and unobstructed in and strike the frame.
  • the opening opening of the buffer coaxial with the end of the rotor can be engaged with the end of the key arm, is closed by a plug pressed against the pad under its closed position the opening opening by a return spring and the key, when introduced into the opening opening, causes the depression of the closure cap against the restoring force of the spring along the rotor whose end is in engagement with the end of the arm of the key.
  • the closing cap of the opening opening prevents debris from passing through the opening opening of the buffer can reach some of the internal components of the lock and lead to difficult to pivot by the key of the bolt of its locking position of the buffer to the frame at its unlocking position of this frame buffer.
  • the closing cap of the opening opening of the buffer prevents detritus from accumulating in the opening opening and obstructing it, otherwise the introduction of the key into the opening opening of the buffer for it would be impossible to maneuver the latch bolt.
  • the flat bolt of the lock is in its position corresponding to that of locking the buffer to the frame.
  • the operator especially when the buffer is hinged to one side of the frame, accidentally causes the buffer to tip to its closed position of the frame, thereby damaging the latch bolt and , therefore the lock, by striking violently the corresponding side wall of the frame.
  • the present invention aims to overcome the disadvantages above.
  • the device for locking and unlocking with a key of a buffer on a frame comprising a lock secured to the buffer which has an opening opening access to the lock for the key having an arm whose one end allows the lock to be operated when the key is inserted into the opening of the buffer of a locking position in which a bolt of the lock is held prisoner of a striker of the frame to lock the lock buffer in the frame at an unlocking position for which the bolt is released from the striker to allow the displacement of the buffer to its position released from the opening of the frame
  • the lock comprising a drive mechanism connected to the bolt so as to allow the movement of the bolt under the action of the key between its locked and unlocked positions of the striker, characterized in that the latch bolt comprises a rod returned to its locked position of the striker by an elastic return member and the drive mechanism cooperates with the bolt under the action of the key to move in translation against the restoring force of the return member the rod of the bolt at its unobstructed position of the striker, in that the bolt of
  • the drive mechanism comprises a rotor rotatably mounted in the pad perpendicularly below it, accessible at one of its ends through the opening and a cam member secured to the opposite end of the rotor and engaged in a recess of the rod of the bolt and cooperating with the cam part of the rotor when the latter is operated by the key engaged with the corresponding end of the rotor to move in translation against the restoring force of the organ return the bolt rod to its released position of the striker.
  • the rod of the bolt and the return member are coaxial and housed perpendicularly to the rotor in a housing removably fixed under the pad and the end portion of the rotor having the cam passes through a wall of the housing located on the inner side of the pad so that the cam engaged in the recess of the rod of the bolt is housed in the housing.
  • the rotor cam extends perpendicularly to the longitudinal direction of the rod of the bolt when the latter occupies its captive position of the striker.
  • the rod of the bolt is supported by an inner face of its obviously located on the return member member on a side face of the rotor adjacent to the cam when the rod of the bolt occupies its captive position in the striker.
  • the bolt rod is flat and the housing comprises two parts removably attached to each other respectively a first substantially flat-shaped ⁇ -shaped cross-section portion in which are housed guided sliding bolt rod and the return member and a second flat plate-shaped portion constituting the aforementioned wall of the housing through which the cam and to which are releasably attached the two elongate side branches of the first portion.
  • the second portion of the housing comprises a plate secured to an edge of the second portion so as to close the end opening of the first portion opposite to that allowing the passage of the beveled end of the rod bolt and on which plate bears one end of the return member constituted by a helical compression spring.
  • the second part of the housing is removably fixed under the buffer.
  • the opening opening of the buffer is coaxial with the end of the rotor can be engaged with the end of the arm of the key and in that the key, when introduced into the opening opening, causes the depression closing cap against the restoring force of the spring along the rotor whose end is engaged with the end of the arm of the key.
  • a cylindrical barrel fixed under the buffer and having a transverse end wall through which is formed the opening opening of the buffer which comprises a circular central orifice and two diametrically opposed grooves opening into the circular central orifice and the closing cap is in the form of a cylindrical section slidably mounted guided in the cylindrical barrel and on the rotor of the lock and having two cylindrical end portions separated from one another by a flange slidable in the cylindrical barrel, l one of the end portions of the closure cap having two diametrically opposite pins engaged respectively in the two grooves of the opening opening with the flange bearing under the transverse wall of the barrel when the closure cap is in its closed position of the opening opening, the tenons of the closure cap being disengaged from the opening opening when the key arm is engaged with the end of the lock rotor to rotate the rotor to its position at which the latch bolt is disengaged from the striker frame.
  • the closure cap is integral in rotation with the end of the rotor of the lock.
  • the return spring of the closure cap is housed in the cylindrical barrel being mounted prestressed between the flange of the cylindrical plug and an internal shoulder of the cylindrical barrel.
  • the transverse end wall of the cylindrical barrel is part of a cylindrical sleeve attached to the corresponding end portion of the cylindrical barrel.
  • the cylindrical barrel is integral with the second flat plate-shaped portion of the housing and perpendicular thereto.
  • the key comprises at the tubular end of its arm two diametrically opposite lugs of form conjugated to the grooves of the opening opening to allow the engagement of the tubular end of the arm of the key through the opening opening by pushing the closure plug into the cylindrical shaft to meet the restoring force of the spring and to a position at which the two lugs of the key are brought in support under the transverse wall of the cylindrical drum by rotation of the key engaged with the rotor of the lock and held under this wall by the closing cap and the return force exerted by the spring on the collar of the closure cap.
  • FIG. 1 is a top view of a pad mounted in locked position on a frame for manhole
  • FIG. 2 is a bottom view of the buffer and frame assembly of FIG.
  • FIG. 3 is a sectional view along the line III-III of Figure 2;
  • FIG. 4 is an enlarged view of the circled portion IV of Figure 3;
  • FIG. 5 is a perspective view from below of the buffer and frame assembly of FIG. 1;
  • FIG. 6 is an enlarged view of the portion circled at VI of FIG. 5;
  • FIG. 7 is an exploded perspective view of the lock of the invention.
  • FIG. 8 is a perspective view of the lock of Figure 7 in the assembled position
  • Figure 9 is a view similar to that of Figure 8 showing the release key engaged in the lock
  • FIG. 10 is a perspective view of the key for unlocking the stamp; and FIG. 11 is a view of the unlocking key along arrow XI in FIG.
  • the locking and unlocking device of the invention which will be described below is intended to equip a buffer or cover 1 to seal a frame or frame 2 delimiting the access opening including a look of ground or buried visit.
  • the locking and unlocking device can be actuated by a key 3 as will be seen later to unlock the buffer 1 of the frame 2 and disengage it from this frame to access the manhole and, if necessary, lock it to new to this frame.
  • the pad 1 has a square shape and is housed in its closed position in a square opening of the frame 2, but the pad 1 can be circular to ensure the closure of the circular opening of the corresponding frame 2. Any other form of pad of Pavement look can be considered as rectangular or triangular.
  • the buffer 1 is pivotally mounted at one of its straight sides to an adjacent side walls 2a of the frame 2 about a hinge axis A as is known per se to allow the tilting of the buffer 1 relative to the frame 2 between its open and closed positions of the frame and hold the buffer to the frame 2 when the buffer is in its upright raised position of this opening.
  • the articulation of the buffer 1 to the frame 2 may be of the type allowing the removal of the buffer 1 of this frame in the standing position of the buffer 1.
  • a non-articulated device whose buffer would be maneuvered by a movement "pulled-slip" to put it in the opening of the frame.
  • the pad 1 has its upper wall forming a substantially planar web 1 having on its outer surface non-skid protruding elements 1b.
  • the pad 1 further includes an opening 4 opening outwards at the flat upper face 1c of the wall 1a and allowing access by the key 3 to a latch 5 fixed under the wall 1a of the buffer 1 .
  • the latch 5 is located opposite the side wall 2a of the frame 2 opposite that of articulation of the buffer 1 to this frame.
  • the lock will be located opposite a wall adjacent to that of the joint.
  • the key 3 comprises an arm or longitudinal rod 6, one end of which is provided with a sleeve 7 coaxial with the arm 6 and the opposite end is provided with a maneuvering handle 8 extending perpendicularly from one side to the other. other of the arm 6.
  • the sleeve 7 has an internal cavity 9 allowing to be engaged with a rotor 10 rotatably mounted in the buffer 1 to operate the latch 5 of a locking position in which a bolt 1 1 of the latch 5 is held prisoner of a striker 12 of the frame 2 to lock the buffer 1 to the frame 2 to an unlocked position for which the bolt 1 1 is released from the striker 12 to allow the removal of the buffer 1 of the frame 2.
  • the striker 12 is formed by a recess made in an internal thickness of the side wall 2a of the frame opposite to the hinge axis A.
  • the rotor 10 of the latch 5 extends perpendicularly to the upper wall 1a of the buffer 1 under it and is connected at its end opposite to that intended to engage with the sleeve 7 of the key 3, to the bolt 1 1 so as to allow the movement of the bolt 1 1 under the action of the key 3, when the sleeve 7 is engaged with the end 10b of the rotor 10, between its captive positions and released from the striker 12 of the frame 2.
  • the reference V designates an assistance cylinder to the opening of the buffer and mounted articulated between the buffer 1 and the side wall 2a of the frame 1 provided with the hinge A.
  • the reference B designates a buffer holding crutch 1 at its upright position of the opening of the frame 2 and having one of its ends connected hinged to the side wall 2a of the frame 2 provided with the hinge A and its opposite end shaped and adapted to cooperate with a rib 1 n buffer 1 under the latter to block the buffer 1 to its standing position.
  • An elastic support J is fixed under the buffer 1 and bears on an inner peripheral nipple 2n of the frame 2 when the buffer 1 closes the frame 2.
  • This elastic support J may have a sealing function.
  • the bolt 1 1 of the latch 5 comprises a rod 1 1 a, preferably constituted by a flat slender bar, housed guided sliding in a housing 13 removably fixed under the buffer 1, the rod 1 1 a extending in a direction substantially parallel to the upper wall 1a of the buffer 1 and transverse to the side wall 2a of the frame 2 provided with the hinge A when it is hinged.
  • the rod 1 1 a bolt January 1 is recalled to its engagement position in the striker 12 of the frame 2 by a resilient member 14 preferably constituted by a helical compression spring housed in the housing 13 coaxially to the rod 1 1a of the bolt 1 1 and perpendicular to the rotor 10.
  • the housing 13 comprises two parts 15, 16 removably attached to each other by fixing screws 17 and respectively comprising a first elongate portion 15 of substantially flat-shaped ⁇ -shaped cross-section 18 in which are guided sliding guide the rod 1 1 a of the bolt 1 1 and the return member 14 and a second portion in the form of a flat plate 16 in which are removably attached the two flat longitudinal branches 19 of the first part 15 by the screws 17 anchored in threaded holes 20 of the second part 16.
  • the second part 16 has a generally rectangular shape preferably (depending on the ribbing of the cast iron on the underside buffer, this shape may be different).
  • the second portion 16 of the housing 13 comprises a plate 21 integral with an edge of the second portion perpendicular to it so as to close the end opening of the first portion 15 opposite to that allowing the passage of the beveled end 1 1b of the rod 1 1a of the bolt January 1 and on which plate 21 bears one end of the return member 14, the opposite end portion is housed in an end notch U-shaped of the rod 1 1 a of the bolt 1 1.
  • the second portion 16 of the housing 13 is removably attached to four feet 22 which can come from a casting projecting under the upper wall 1a of the buffer. More specifically, the substantially square flat plate of the second portion 16 of the housing 13 comprises four holes 23 made at the four corners of this plate and allowing the passage of four screws 16a, which can be anchored respectively in four threaded holes formed in parts d ends of the four legs 22 of the pad 1.
  • the rod 1 1 has the bolt 1 1 has a through recess 24 formed in the vicinity of the central portion of this rod and whose role will be explained below.
  • the rotor 10 has, integral with its end 10a opposite the end 10b can be engaged with the key 3, a cam member 25 engaged in the recess 24 of the rod 1 1 has bolt 1 1, which recess 24 is shaped to cooperate with the cam member 25 of the rotor 10 when it is operated by the key 3 to move in translation the rod 1 1 a of the bolt January 1 in the housing 13 in its disengaged position of the striker 12 against the restoring force of the elastic return member 14.
  • the cam part 25 of the rotor 10 has its own cam 25a extending perpendicularly to the longitudinal direction of the rod 1 1a of the bolt 1 1 when the latter occupies its engaged position in the keeper 12.
  • the rod 1 1a of the bolt January 1 is supported by an inner face 24a of its recess 24 located on the side of the return member 14 on a side face 25b of the cam member 25 and adjacent to the cam 25a when the rod 1 1 has the bolt 1 1 occupies its engaged position in the keeper 12 to thereby constitute a retaining stop of the rod 1 1 a of the bolt January 1 at this position under the action of the return member 14.
  • the end portion of the rotor 10 having the cam-shaped end 10a passes through the flat wall of the second portion 16 of the housing 13 as will be seen later so that the cam member 25 can be engaged in the recess 24 of the rod of the bolt January 1 and, therefore, is housed in the housing 13.
  • the latch 5 comprises a cylindrical barrel 26 integral with the upper face of the flat plate of the second portion 16 of the housing 13 extending perpendicularly to this face so that the cylindrical shaft 26 extends to a fixed position perpendicular to the wall 1a of the buffer 1 below this wall.
  • the rotor 10 extends coaxially in the cylindrical barrel 26 with its smaller cylindrical lower end portion passing through a lower central bore 27 of the cylindrical barrel 26 and the flat wall of the second portion 16 of the casing 13 so as to that the cam member 25 is housed in the recess 24 of the rod of the bolt 1 1.
  • the rotor 10 can rotate under the action of the key 3 in the bore 27 of the cylindrical shaft 26 to angularly drive the piece forming a cam 25 between its two positions of withdrawal of the rod 1 1 a of the bolt 1 1 of the keeper 12 and engagement of the rod 1 1 a of the bolt January 1 in this striker.
  • the end portion of the cylindrical barrel 26 opposite the second portion 16 of the housing 13 is capped by a cylindrical sleeve 28 integral with this end portion and having a transverse end wall 29 through which is defined the opening opening 4 which comprises a circular central orifice 4a of a diameter slightly greater than the outer diameter of the sleeve 7 of the key 3 and two diametrically opposed grooves 4b opening into the central circular opening 4a.
  • the cylindrical sleeve 28 comprises opposite its end wall 29 an annular base 30 having two diametrically opposed holes 31 in which are engaged two cylindrical pins 32, such as for example fluted pins, respectively press-fitted in two corresponding holes 33 of the cylindrical shaft 26 for fixing the cylindrical sleeve 28 to the cylindrical shaft 26 with the transverse end wall 29 resting on the annular end of the cylindrical shaft 26.
  • the lock 5 also comprises a plug 34 for closing the opening opening 4.
  • the closure cap 34 is in the form of a cylindrical section having two cylindrical end portions 35, 36 separated from one another by a collar 37 slidable in the cylindrical drum 26 , a superior 35 of the parties of cylindrical ends of the closure cap 34 having two diametrically opposite pins 38 engagable with the cylindrical end portion 35 in the central circular hole 4a and the grooves 4b of the cylindrical sleeve 28 to seal the opening opening 4 with the collar 37 bearing under the transverse end wall 29 of the cylindrical sleeve 28.
  • a helical compression spring 39 is mounted prestressed between the flange 37 of the closure cap 34 and an internal shoulder 40 of the cylindrical barrel 26 so as to exert a return force of the cap 34 to its closed position of the opening opening 4.
  • the plug 34 is made captive, that is to say it can not be removed from the buffer 1.
  • the closure cap 34 may be axially guidedly displaced along the larger diameter end portion 10b of the rotor 10 against the restoring force of the spring 39 when the socket 7 of the key 3 is introduced through the opening opening 4. [0050]
  • the closure cap 34 has a central orifice through
  • cylindrical end portion 10b of the rotor 10 comprises a flattened portion 10d extending along the end portion 10b that can cooperate with a flat portion 41a of the through hole 41 of the closure plug. 34.
  • Other forms of key impressions may exist.
  • the end portion 10b of the rotor has a second flat 10e of smaller width than that of the flat portion 10d, connected thereto and constituting a polarizer cooperating with a second flat portion 41b of the hole 41 of the cap
  • the closure cap 34 can slide axially along the rotor 10 against the restoring force of the spring 39 being secured in rotation to this end portion.
  • the end wall 29 of the cylindrical sleeve 28, the upper end of the closure cap 34 and the upper end of the rotor 10 are flush in the same plane located in the plane.
  • the cylindrical sleeve 28 is largely housed in a hole 1 d of the wall 1a of the buffer 1.
  • the rotor 10 is axially held in the cylindrical drum 26 by the cam member 25 housed in the recess 24 of the bolt January 1 between the bottom wall 18 of the first portion 15 of the housing 13 and the lower end of the cylindrical barrel 26, while being able to rotate a limited angle in this barrel under the action of the key 3.
  • the footprint 9 of the sleeve 7 of the key 3 is of complementary shape to that of the part d 10b end of the rotor 10, that is to say in the illustrated example that the cavity 9 has a flat 9a adapted to cooperate with the flat portion 10d of the end portion 10b of the rotor 10 and a second flat of Wider width 9b adapted to cooperate with the flat portion 10e of the end portion 10b of the rotor 10 to together constitute a polarizing means.
  • the socket 7 of the key 3 further comprises two diametrically opposed lugs 7a protruding from either side of this socket and shaped respectively conjugate to the two diametrically opposed grooves 4b of the opening opening 4.
  • the rotor 10 is engaged in the cylindrical shaft 26 without its cam member 25 so that its cylindrical lower end portion 10a is engaged in the bore 27 of the cylindrical shaft 26 and the piece forming Cam 25 is fixed to the end of the rotor 10 by a central fixing screw, not shown.
  • the bolt January 1 and the elastic return member 14 are mounted in the first portion 15 of the housing 13 and the rotor 10 is engaged in the recess 24 of the bolt January 1.
  • the first part 15 is then fixed by the fastening screws 17 under the plate of the second part 16 of the casing 13 and the spring 39 is engaged in the cylindrical drum 26.
  • the closure cap 34 is disposed above the spring 39 so that the flange 37 of the cap is supported on the upper end turn of this spring.
  • the cylindrical sleeve 28 is engaged on the upper end portion of the cylindrical barrel 26 by positioning the opening orifice 4 so that the tenons 38 of the plug 34 are engaged respectively in the two grooves 4b of the cylindrical sleeve 28 which is then attached to the cylindrical shaft 26 by the cylindrical pins 32 passing through the bores 31 of the circular base 30 of the cylindrical sleeve 28 and the bores 33 of the cylindrical shaft 26.
  • the assembled assembly of the casings 13, cylindrical barrel 26, closure cap 34 and cylindrical sleeve 38 is engaged under the wall 1a of the buffer 1 so that the cylindrical sleeve 28 is engaged in the bore 1 d of the wall 1a and the housing 13 is fixed via its second portion 16 to the four legs 22 of the buffer 1.
  • the part of end 10b of the rotor 10 is coupled to the sleeve 7 of the key 3 which is then rotated about a quarter of a turn to also rotate a quarter turn the plug 34 in the barrel 26 so that the two lugs 7a of the bushing 7 can bear under the end wall 29 of the cylindrical sleeve 28 and are held below it by the restoring force exerted by the spring 39 on the flange 27 of the plug 34, the lugs 7a being thus trapped between the wall 29 and the coll erette 37, holding key 3 in buffer 1.
  • the cam member 25 causes by its cam 25a the displacement in guided translation of the rod 1 1 a of the bolt 1 1 in the housing 13 against the return force of the elastic member 14 so as to disengage the beveled end 1 1 a of this rod of the striker 12 of the frame 2.
  • the operator can then with the aid of the key 3 lift the buffer 1 to disengage it from the frame 2 by pivoting about the hinge axis A.
  • the operator can remove the key 3 from this buffer by turning it a quarter of a turn so as to disengage the two lugs 7a of the key 3 of the grooves 4b of the cylindrical sleeve 28, then bringing the piece back forming a cam 25 of the rotor 10 at its position at which the rod 1 1 has the bolt 1 1 is brought by the elastic return member 14 to its projecting position of the housing 13.
  • the operator manually switches the buffer 1 from its upright position.
  • tapered portion 11a of bolt rod 11 hits one side of a protruding portion of frame 2 located above striker 12 to cause translational movement.
  • the rod 1 1 has the bolt 1 1 in part in the housing 13 against the restoring force of the elastic member 14 and this member remembers the rod 1 1 a of the bolt 1 1 in its engagement position of the beveled end 1 1b in the keeper 12 of the frame 2 to lock the buffer 1 again to this frame.
  • the standing position of the buffer 1 the key 3 can be held captive of this buffer and the operator can switch the buffer to its closed position of the frame 1.
  • the operator turns the key 3 by a quarter of a turn to cause the angular pivoting of the cam member 25 to its position at which the elastic member 14 can recall the rod bolt 1 1 to its engaged position in the keeper 12 of the frame 2 to lock the buffer 1 to this frame.
  • the rotor 10 and the cam member 25 may be replaced by any other drive mechanism housed in the buffer 1 and which, under the action of the key 3, allows the translational movement of the bolt 1 1 between its positions engaged in the keeper 12 and cleared thereof.
  • the above described device of the invention uses a lock that allows the automatic locking of the buffer 1 to the frame 2 during the switchover of this buffer to its closed position of the frame 2 without the help of the key to maneuver of this lock while ensuring the anti-fouling function of the access opening to this lock to the closed position of the frame 2 by the buffer 1.
  • the advantages of the invention are the ability to quickly close and lock the buffer in the frame and to prohibit the on-site forgetting of foreign bodies, such as a removable plug attached in the opening opening of the buffer and removed from this opening to access the rotor to unlock the frame buffer.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The present invention relates to a device for locking and unlocking a manhole cover on a frame by means of a key, with the option of automatic keyless locking of said manhole cover on the frame. According to the invention, the device is characterised in that the bolt (11) of the lock (5) comprises a shank (11a) returned to the captive position of the strike (12) by a resilient return member (14) and the drive mechanism (10, 25) engages with the bolt (11) so as to allow the automatic locking of the manhole cover (1) to the frame (2) when the key is removed from the manhole cover (1) in the position thereof separated from the opening of the frame (2), and the manhole cover (1) comprises a captive plug (34) for sealing the through-opening (4) of the manhole cover (1).

Description

Dispositif de verrouillage et de déverrouillage à l'aide d'une clé d'un tampon sur un cadre avec possibilité de verrouillage automatique sans clé de ce tampon sur le cadre  Locking and unlocking device by means of a key of a buffer on a frame with possibility of automatic locking without key of this stamp on the frame
[0001 ] La présente invention concerne un dispositif de verrouillage et de déverrouillage à l'aide d'une clé d'un tampon ou couvercle sur un cadre, notamment de regard de chaussée. The present invention relates to a locking and unlocking device with a key of a buffer or cover on a frame, including the manhole.
[0002] On connaît par le document FR 2 979 368 un tel dispositif comprenant un verrou solidaire du tampon qui présente une ouverture débouchante d'accès au verrou pour la clé qui comporte un bras dont une extrémité permet de manœuvrer le verrou lorsque la clé est introduite dans l'ouverture du tampon d'une position de verrouillage dans laquelle un pêne du verrou est retenu prisonnier d'une gâche du cadre à une position de déverrouillage pour laquelle le pêne est dégagé de la gâche. [0002] Document FR 2 979 368 discloses such a device comprising a latch integral with the buffer which has an opening opening for access to the latch for the key which comprises an arm, one end of which makes it possible to maneuver the latch when the key is introduced into the opening of the buffer of a locking position in which a bolt of the lock is held prisoner of a striker of the frame to an unlocked position for which the bolt is released from the striker.
[0003] Ce verrou comprend un rotor monté à rotation dans le tampon, accessible à l'une de ses extrémités par l'ouverture débouchante et portant à son extrémité opposée le pêne constitué par un bras transversal plat sensiblement rectangulaire de manière que la rotation du rotor sous l'action de la clé provoque le pivotement dans son propre plan du pêne entre ses positions prisonnière et dégagée dans et de la gâche du cadre. [0004] En outre, l'ouverture débouchante du tampon, coaxiale avec l'extrémité du rotor pouvant être en prise avec l'extrémité du bras de la clé, est obturée par un bouchon rappelé en appui sous le tampon à sa position de fermeture de l'ouverture débouchante par un ressort de rappel et la clé, lorsque qu'introduite dans l'ouverture débouchante, provoque l'enfoncement du bouchon de fermeture à rencontre de la force de rappel du ressort le long du rotor dont l'extrémité est en prise avec l'extrémité du bras de la clé. This lock comprises a rotor rotatably mounted in the buffer, accessible at one of its ends through the opening opening and carrying at its opposite end the bolt constituted by a substantially rectangular flat transverse arm so that the rotation of the Rotor under the action of the key causes the pivoting in its own plane of the bolt between its positions prisoner and unobstructed in and strike the frame. In addition, the opening opening of the buffer, coaxial with the end of the rotor can be engaged with the end of the key arm, is closed by a plug pressed against the pad under its closed position the opening opening by a return spring and the key, when introduced into the opening opening, causes the depression of the closure cap against the restoring force of the spring along the rotor whose end is in engagement with the end of the arm of the key.
[0005] Le bouchon de fermeture de l'ouverture débouchante empêche des détritus de traverser l'ouverture débouchante du tampon pouvant atteindre certains des composants internes du verrou et conduire à rendre difficile le pivotement par la clé du pêne de sa position de verrouillage du tampon au cadre à sa position de déverrouillage de ce tampon du cadre. [0006] En outre, le bouchon de fermeture de l'ouverture débouchante du tampon empêche des détritus de s'accumuler dans l'ouverture débouchante et de l'obstruer, sinon l'introduction de la clé dans l'ouverture débouchante du tampon pour manœuvrer le pêne du verrou serait rendue impossible. [0007] Cependant, la structure du verrou du tampon à bouchon de fermeture de l'ouverture débouchante de ce tampon est relativement complexe et fastidieuse à assembler sous le tampon. The closing cap of the opening opening prevents debris from passing through the opening opening of the buffer can reach some of the internal components of the lock and lead to difficult to pivot by the key of the bolt of its locking position of the buffer to the frame at its unlocking position of this frame buffer. In addition, the closing cap of the opening opening of the buffer prevents detritus from accumulating in the opening opening and obstructing it, otherwise the introduction of the key into the opening opening of the buffer for it would be impossible to maneuver the latch bolt. [0007] However, the structure of the plug lock of the closing cap of the opening opening of this buffer is relatively complex and tedious to assemble under the buffer.
[0008] Par ailleurs, lorsque le tampon est désengagé de l'ouverture du cadre à sa position relevée avec la clé retirée du tampon, le pêne plat du verrou occupe sa position correspondant à celle de verrouillage du tampon au cadre. Dans ces conditions, il y a un risque que l'opérateur, notamment lorsque le tampon est articulé à l'un des côtés du cadre, provoque accidentellement le basculement du tampon à sa position de fermeture du cadre, endommageant alors le pêne du verrou et, par conséquent le verrou, en heurtant violemment la paroi latérale correspondant du cadre. [0009] La présente invention a pour but de remédier aux inconvénients ci- dessus. Furthermore, when the buffer is disengaged from the opening of the frame to its raised position with the key removed from the buffer, the flat bolt of the lock is in its position corresponding to that of locking the buffer to the frame. Under these conditions, there is a risk that the operator, especially when the buffer is hinged to one side of the frame, accidentally causes the buffer to tip to its closed position of the frame, thereby damaging the latch bolt and , therefore the lock, by striking violently the corresponding side wall of the frame. The present invention aims to overcome the disadvantages above.
[0010] A cet effet, selon l'invention, le dispositif de verrouillage et de déverrouillage à l'aide d'une clé d'un tampon sur un cadre, comprenant un verrou solidaire du tampon qui présente une ouverture débouchante d'accès au verrou pour la clé comportant un bras dont une extrémité permet de manœuvrer le verrou lorsque la clé est introduite dans l'ouverture du tampon d'une position de verrouillage dans laquelle un pêne du verrou est retenu prisonnier d'une gâche du cadre pour verrouiller le tampon dans le cadre à une position de déverrouillage pour laquelle le pêne est dégagé de la gâche pour permettre le déplacement du tampon à sa position dégagée de l'ouverture du cadre, le verrou comprenant un mécanisme d'entraînement relié au pêne de manière à permettre le déplacement du pêne sous l'action de la clé entre ses positions prisonnière et dégagée de la gâche, caractérisé en ce que le pêne du verrou comprend une tige rappelée à sa position prisonnière de la gâche par un organe élastique de rappel et le mécanisme d'entraînement coopère avec le pêne sous l'action de la clé pour déplacer en translation à rencontre de la force de rappel de l'organe de rappel la tige du pêne à sa position dégagée de la gâche, en ce que le pêne du verrou, lorsque la clé est retirée du tampon à sa position dégagée du cadre, permet le verrouillage automatique par l'organe élastique de rappel du tampon au cadre lors de l'introduction du tampon dans le cadre et en ce que l'ouverture débouchante du tampon, est obturée par un bouchon imperdable rappelé en appui sous le tampon à sa position de fermeture de l'ouverture débouchante par un ressort de rappel. For this purpose, according to the invention, the device for locking and unlocking with a key of a buffer on a frame, comprising a lock secured to the buffer which has an opening opening access to the lock for the key having an arm whose one end allows the lock to be operated when the key is inserted into the opening of the buffer of a locking position in which a bolt of the lock is held prisoner of a striker of the frame to lock the lock buffer in the frame at an unlocking position for which the bolt is released from the striker to allow the displacement of the buffer to its position released from the opening of the frame, the lock comprising a drive mechanism connected to the bolt so as to allow the movement of the bolt under the action of the key between its locked and unlocked positions of the striker, characterized in that the latch bolt comprises a rod returned to its locked position of the striker by an elastic return member and the drive mechanism cooperates with the bolt under the action of the key to move in translation against the restoring force of the return member the rod of the bolt at its unobstructed position of the striker, in that the bolt of the latch, when the key is removed from the buffer in its unobstructed position of the frame, allows the automatic locking by the elastic member for returning the buffer to the frame during the introduction of the buffer in the setting and in that the opening opening buffer, is closed by a cap captive recalled support under the buffer at its closed position of the opening opening by a return spring.
[001 1 ] Le mécanisme d'entraînement comprend un rotor monté à rotation dans le tampon perpendiculairement sous celui-ci, accessible à l'une de ses extrémités par l'ouverture et une pièce formant came solidaire de l'extrémité opposée du rotor et engagée dans un évidement de la tige du pêne et coopérant avec la pièce formant came du rotor lorsque ce dernier est manœuvré par la clé en prise avec l'extrémité correspondante du rotor pour déplacer en translation à rencontre de la force de rappel de l'organe de rappel la tige du pêne à sa position dégagée de la gâche. [0012] La tige du pêne et l'organe de rappel sont coaxiaux et logés perpendiculairement au rotor dans un boîtier amoviblement fixé sous le tampon et la partie d'extrémité du rotor comportant la came traverse une paroi du boîtier située côté face interne du tampon de manière que la came engagée dans l'évidemment de la tige du pêne soit logée dans le boîtier. [0013] La came du rotor s'étend perpendiculairement à la direction longitudinale de la tige du pêne lorsque ce dernier occupe sa position prisonnière de la gâche. [001 1] The drive mechanism comprises a rotor rotatably mounted in the pad perpendicularly below it, accessible at one of its ends through the opening and a cam member secured to the opposite end of the rotor and engaged in a recess of the rod of the bolt and cooperating with the cam part of the rotor when the latter is operated by the key engaged with the corresponding end of the rotor to move in translation against the restoring force of the organ return the bolt rod to its released position of the striker. The rod of the bolt and the return member are coaxial and housed perpendicularly to the rotor in a housing removably fixed under the pad and the end portion of the rotor having the cam passes through a wall of the housing located on the inner side of the pad so that the cam engaged in the recess of the rod of the bolt is housed in the housing. The rotor cam extends perpendicularly to the longitudinal direction of the rod of the bolt when the latter occupies its captive position of the striker.
[0014] La tige du pêne est en appui par une face interne de son évidemment située côté organe de rappel sur une face latérale du rotor adjacente à la came lorsque la tige du pêne occupe sa position prisonnière dans la gâche. The rod of the bolt is supported by an inner face of its obviously located on the return member member on a side face of the rotor adjacent to the cam when the rod of the bolt occupies its captive position in the striker.
[0015] La tige du pêne est plate et le boîtier comprend deux parties amoviblement fixées l'une à l'autre respectivement une première partie à section transversale sensiblement en forme de Ω à fond plat dans laquelle sont logés à coulissement guidé la tige du pêne et l'organe de rappel et une seconde partie en forme de plaque plane constituant la paroi précitée du boîtier traversée par la came et à laquelle sont amoviblement fixées les deux branches latérales longilignes de la première partie. The bolt rod is flat and the housing comprises two parts removably attached to each other respectively a first substantially flat-shaped Ω-shaped cross-section portion in which are housed guided sliding bolt rod and the return member and a second flat plate-shaped portion constituting the aforementioned wall of the housing through which the cam and to which are releasably attached the two elongate side branches of the first portion.
[0016] La seconde partie du boîtier comprend une plaquette solidaire d'un bord de cette seconde partie de manière à obturer l'ouverture d'extrémité de la première partie opposée à celle autorisant le passage de l'extrémité biseautée de la tige du pêne et sur laquelle plaquette est en appui une extrémité de l'organe de rappel constitué par une ressort hélicoïdal de compression. The second portion of the housing comprises a plate secured to an edge of the second portion so as to close the end opening of the first portion opposite to that allowing the passage of the beveled end of the rod bolt and on which plate bears one end of the return member constituted by a helical compression spring.
[0017] La seconde partie du boîtier est amoviblement fixée sous le tampon. [0018] L'ouverture débouchante du tampon est coaxiale avec l'extrémité du rotor pouvant être en prise avec l'extrémité du bras de la clé et en ce que la clé, lorsqu'introduite dans l'ouverture débouchante, provoque l'enfoncement du bouchon de fermeture à rencontre de la force de rappel du ressort le long du rotor dont l'extrémité est en prise avec l'extrémité du bras de la clé. The second part of the housing is removably fixed under the buffer. The opening opening of the buffer is coaxial with the end of the rotor can be engaged with the end of the arm of the key and in that the key, when introduced into the opening opening, causes the depression closing cap against the restoring force of the spring along the rotor whose end is engaged with the end of the arm of the key.
[0019] Un fût cylindrique fixé sous le tampon et comportant une paroi d'extrémité transversale au travers de laquelle est réalisée l'ouverture débouchante du tampon qui comprend un orifice central circulaire et deux rainures diamétralement opposées débouchant dans l'orifice central circulaire et le bouchon de fermeture est en forme de tronçon cylindrique monté à coulissement guidé dans le fût cylindrique et sur le rotor du verrou et comportant deux parties d'extrémités cylindriques séparées l'une de l'autre par une collerette pouvant coulisser dans le fût cylindrique, l'une des parties d'extrémités du bouchon de fermeture comportant deux tenons diamétralement opposés engagés respectivement dans les deux rainures de l'ouverture débouchante avec la collerette en appui sous la paroi transversale du fût lorsque le bouchon de fermeture occupe sa position d'obturation de l'ouverture débouchante, les tenons du bouchon de fermeture étant désengagés de l'ouverture débouchante lorsque le bras de la clé est en prise avec l'extrémité du rotor du verrou pour entraîner en rotation le rotor à sa position à laquelle le pêne du verrou est désengagé de la gâche du cadre. [0020] Le bouchon de fermeture est solidaire en rotation de l'extrémité du rotor du verrou. A cylindrical barrel fixed under the buffer and having a transverse end wall through which is formed the opening opening of the buffer which comprises a circular central orifice and two diametrically opposed grooves opening into the circular central orifice and the closing cap is in the form of a cylindrical section slidably mounted guided in the cylindrical barrel and on the rotor of the lock and having two cylindrical end portions separated from one another by a flange slidable in the cylindrical barrel, l one of the end portions of the closure cap having two diametrically opposite pins engaged respectively in the two grooves of the opening opening with the flange bearing under the transverse wall of the barrel when the closure cap is in its closed position of the opening opening, the tenons of the closure cap being disengaged from the opening opening when the key arm is engaged with the end of the lock rotor to rotate the rotor to its position at which the latch bolt is disengaged from the striker frame. The closure cap is integral in rotation with the end of the rotor of the lock.
[0021 ] Le ressort de rappel du bouchon de fermeture est logé dans le fût cylindrique en étant monté précontraint entre la collerette du bouchon cylindrique et un épaulement interne du fût cylindrique. [0022] La paroi d'extrémité transversale du fût cylindrique fait partie d'un manchon cylindrique fixé à la partie d'extrémité correspondante du fût cylindrique. The return spring of the closure cap is housed in the cylindrical barrel being mounted prestressed between the flange of the cylindrical plug and an internal shoulder of the cylindrical barrel. The transverse end wall of the cylindrical barrel is part of a cylindrical sleeve attached to the corresponding end portion of the cylindrical barrel.
[0023] Le fût cylindrique est solidaire de la seconde partie en forme de plaque plane du boîtier et perpendiculairement à celle-ci. The cylindrical barrel is integral with the second flat plate-shaped portion of the housing and perpendicular thereto.
[0024] La clé comporte à l'extrémité tubulaire de son bras deux ergots diamétralement opposés de forme conjuguée aux rainures de l'ouverture débouchante pour permettre l'engagement de l'extrémité tubulaire du bras de la clé au travers de l'ouverture débouchante en enfonçant le bouchon de fermeture dans le fût cylindrique à rencontre de la force de rappel du ressort et jusqu'à une position à laquelle les deux ergots de la clé sont amenés en appui sous la paroi transversale du fût cylindrique par rotation de la clé en prise avec le rotor du verrou et maintenus sous cette paroi par le bouchon de fermeture et la force de rappel exercée par le ressort sur la collerette du bouchon de fermeture. [0025] L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels : The key comprises at the tubular end of its arm two diametrically opposite lugs of form conjugated to the grooves of the opening opening to allow the engagement of the tubular end of the arm of the key through the opening opening by pushing the closure plug into the cylindrical shaft to meet the restoring force of the spring and to a position at which the two lugs of the key are brought in support under the transverse wall of the cylindrical drum by rotation of the key engaged with the rotor of the lock and held under this wall by the closing cap and the return force exerted by the spring on the collar of the closure cap. The invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the explanatory description which follows with reference to the accompanying drawings given solely by way of example illustrating a embodiment of the invention and in which:
- la figure 1 est une vue de dessus d'un tampon monté en position verrouillée sur un cadre pour regard de chaussée ; - Figure 1 is a top view of a pad mounted in locked position on a frame for manhole;
- la figure 2 est une vue de dessous de l'ensemble à tampon et cadre de la figureFIG. 2 is a bottom view of the buffer and frame assembly of FIG.
1 ; 1;
- la figure 3 est une vue en coupe suivant la ligne lll-lll de la figure 2 ; - Figure 3 is a sectional view along the line III-III of Figure 2;
- la figure 4 est une vue agrandie de la partie cerclée en IV de la figure 3 ; - la figure 5 est une vue en perspective de dessous de l'ensemble à tampon et cadre de la figure 1 ; Figure 4 is an enlarged view of the circled portion IV of Figure 3; FIG. 5 is a perspective view from below of the buffer and frame assembly of FIG. 1;
- la figure 6 est une vue agrandie de la partie cerclée en VI de la figure 5 ; FIG. 6 is an enlarged view of the portion circled at VI of FIG. 5;
- la figure 7 est une vue en perspective éclatée du verrou de l'invention ; FIG. 7 is an exploded perspective view of the lock of the invention;
- la figure 8 est une vue en perspective du verrou de la figure 7 en position assemblée ; - Figure 8 is a perspective view of the lock of Figure 7 in the assembled position;
- la figure 9 est une vue semblable à celle de la figure 8 représentant la clé de déverrouillage engagée dans le verrou ; - Figure 9 is a view similar to that of Figure 8 showing the release key engaged in the lock;
- la figure 10 est une vue en perspective de la clé de déverrouillage du tampon ; et - la figure 1 1 est une vue de la clé de déverrouillage suivant la flèche XI de la figure 10. FIG. 10 is a perspective view of the key for unlocking the stamp; and FIG. 11 is a view of the unlocking key along arrow XI in FIG.
[0026] Le dispositif de verrouillage et de déverrouillage de l'invention qui va être décrit ci-dessous est destiné à équiper un tampon ou couvercle 1 permettant d'obturer un cadre ou châssis 2 délimitant l'ouverture d'accès notamment à un regard de chaussée ou de visite enterré. The locking and unlocking device of the invention which will be described below is intended to equip a buffer or cover 1 to seal a frame or frame 2 delimiting the access opening including a look of ground or buried visit.
[0027] Le dispositif de verrouillage et de déverrouillage peut être actionné par une clé 3 comme on le verra ultérieurement pour déverrouiller le tampon 1 du cadre 2 et le désengager de ce cadre pour accéder au regard de chaussée et, au besoin, le verrouiller à nouveau à ce cadre. Le tampon 1 présente une forme carrée et est logé à sa position de fermeture dans une ouverture carrée du cadre 2, mais le tampon 1 peut être circulaire pour assurer la fermeture de l'ouverture circulaire du cadre correspondant 2. Toute autre forme de tampon de regard de chaussée peut être envisagée comme rectangulaire ou triangulaire. The locking and unlocking device can be actuated by a key 3 as will be seen later to unlock the buffer 1 of the frame 2 and disengage it from this frame to access the manhole and, if necessary, lock it to new to this frame. The pad 1 has a square shape and is housed in its closed position in a square opening of the frame 2, but the pad 1 can be circular to ensure the closure of the circular opening of the corresponding frame 2. Any other form of pad of Pavement look can be considered as rectangular or triangular.
[0028] En outre, le tampon 1 est monté pivotant à l'un de ses côtés droits à l'une adjacente des parois latérales 2a du cadre 2 autour d'un axe d'articulation A comme cela est connu en soi pour permettre le basculement du tampon 1 relativement au cadre 2 entre ses positions d'ouverture et de fermeture de ce cadre et retenir le tampon au cadre 2 lorsque le tampon occupe sa position relevée debout de dégagement de cette ouverture. Cependant, l'articulation du tampon 1 au cadre 2 peut être du type permettant le retrait du tampon 1 de ce cadre à la position relevée debout du tampon 1 . On peut imaginer mettre ce verrou sur un dispositif non articulé dont le tampon serait manœuvré par un mouvement "tiré-glissé" pour le mettre dans l'ouverture du cadre. [0029] Le tampon 1 a sa paroi supérieure formant voile 1 a sensiblement plane comportant sur sa face externe des éléments en saillie antidérapants 1 b. Le tampon 1 comporte en outre une ouverture 4 débouchant vers l'extérieur au niveau de la face supérieure plane 1 c de la paroi 1 a et permettant d'accéder par la clé 3 à un verrou 5 fixé sous la paroi 1 a du tampon 1 . Le verrou 5 est situé en regard de la paroi latérale 2a du cadre 2 opposée à celle d'articulation du tampon 1 à ce cadre. Pour un tampon triangulaire notamment, le verrou sera situé en regard d'une paroi adjacente à celle de l'articulation. In addition, the buffer 1 is pivotally mounted at one of its straight sides to an adjacent side walls 2a of the frame 2 about a hinge axis A as is known per se to allow the tilting of the buffer 1 relative to the frame 2 between its open and closed positions of the frame and hold the buffer to the frame 2 when the buffer is in its upright raised position of this opening. However, the articulation of the buffer 1 to the frame 2 may be of the type allowing the removal of the buffer 1 of this frame in the standing position of the buffer 1. One can imagine putting this lock on a non-articulated device whose buffer would be maneuvered by a movement "pulled-slip" to put it in the opening of the frame. The pad 1 has its upper wall forming a substantially planar web 1 having on its outer surface non-skid protruding elements 1b. The pad 1 further includes an opening 4 opening outwards at the flat upper face 1c of the wall 1a and allowing access by the key 3 to a latch 5 fixed under the wall 1a of the buffer 1 . The latch 5 is located opposite the side wall 2a of the frame 2 opposite that of articulation of the buffer 1 to this frame. For a triangular buffer in particular, the lock will be located opposite a wall adjacent to that of the joint.
[0030] La clé 3 comprend un bras ou tige longitudinal 6 dont une extrémité est pourvue d'une douille 7 coaxiale au bras 6 et l'extrémité opposée est pourvue d'une poignée de manœuvre 8 s'étendant perpendiculairement de part et d'autre du bras 6. La douille 7 comporte une empreinte interne 9 permettant d'être en prise avec un rotor 10 monté à rotation dans le tampon 1 pour manœuvrer le verrou 5 d'une position de verrouillage dans laquelle un pêne 1 1 du verrou 5 est retenu prisonnier d'une gâche 12 du cadre 2 pour verrouiller le tampon 1 au cadre 2 à une position de déverrouillage pour laquelle le pêne 1 1 est dégagé de la gâche 12 pour permettre le retrait du tampon 1 du cadre 2. La gâche 12 est formée par un évidement réalisé dans une épaisseur interne de la paroi latérale 2a du cadre opposé à l'axe d'articulation A. The key 3 comprises an arm or longitudinal rod 6, one end of which is provided with a sleeve 7 coaxial with the arm 6 and the opposite end is provided with a maneuvering handle 8 extending perpendicularly from one side to the other. other of the arm 6. The sleeve 7 has an internal cavity 9 allowing to be engaged with a rotor 10 rotatably mounted in the buffer 1 to operate the latch 5 of a locking position in which a bolt 1 1 of the latch 5 is held prisoner of a striker 12 of the frame 2 to lock the buffer 1 to the frame 2 to an unlocked position for which the bolt 1 1 is released from the striker 12 to allow the removal of the buffer 1 of the frame 2. The striker 12 is formed by a recess made in an internal thickness of the side wall 2a of the frame opposite to the hinge axis A.
[0031 ] Le rotor 10 du verrou 5 s'étend perpendiculairement à la paroi supérieure 1 a du tampon 1 sous celle-ci et est relié, à son extrémité opposée à celle destinée à venir en prise avec la douille 7 de la clé 3, au pêne 1 1 de manière à permettre le déplacement du pêne 1 1 sous l'action de la clé 3, lorsque la douille 7 est en prise avec l'extrémité 10b du rotor 10, entre ses positions prisonnière et dégagée de la gâche 12 du cadre 2. The rotor 10 of the latch 5 extends perpendicularly to the upper wall 1a of the buffer 1 under it and is connected at its end opposite to that intended to engage with the sleeve 7 of the key 3, to the bolt 1 1 so as to allow the movement of the bolt 1 1 under the action of the key 3, when the sleeve 7 is engaged with the end 10b of the rotor 10, between its captive positions and released from the striker 12 of the frame 2.
[0032] La référence V désigne un vérin d'assistance à l'ouverture du tampon et monté articulé entre le tampon 1 et la paroi latérale 2a du cadre 1 pourvue de l'articulation A. La référence B désigne une béquille de retenue du tampon 1 à sa position debout de dégagement de l'ouverture du cadre 2 et ayant l'une de ses extrémités reliée articulée à la paroi latérale 2a du cadre 2 pourvue de l'articulation A et son extrémité opposée conformée et apte à coopérer avec une nervure 1 n du tampon 1 sous ce dernier pour bloquer le tampon 1 à sa position debout. The reference V designates an assistance cylinder to the opening of the buffer and mounted articulated between the buffer 1 and the side wall 2a of the frame 1 provided with the hinge A. The reference B designates a buffer holding crutch 1 at its upright position of the opening of the frame 2 and having one of its ends connected hinged to the side wall 2a of the frame 2 provided with the hinge A and its opposite end shaped and adapted to cooperate with a rib 1 n buffer 1 under the latter to block the buffer 1 to its standing position.
[0033] Un support élastique J est fixé sous le tampon 1 et vient en appui sur une nevure périphérique interne 2n du cadre 2 lorsque le tampon 1 obture le cadre 2. Ce support élastique J peut avoir une fonction d'étanchéité. An elastic support J is fixed under the buffer 1 and bears on an inner peripheral nipple 2n of the frame 2 when the buffer 1 closes the frame 2. This elastic support J may have a sealing function.
[0034] Selon l'invention, le pêne 1 1 du verrou 5 comprend une tige 1 1 a, de préférence constituée par un barreau longiligne plat, logée à coulissement guidé dans un boîtier 13 amoviblement fixé sous le tampon 1 , la tige 1 1 a s'étendant suivant une direction sensiblement parallèle à la paroi supérieure 1 a du tampon 1 et transversale à la paroi latérale 2a du cadre 2 pourvue de l'articulation A lorsque celui-ci est articulé. According to the invention, the bolt 1 1 of the latch 5 comprises a rod 1 1 a, preferably constituted by a flat slender bar, housed guided sliding in a housing 13 removably fixed under the buffer 1, the rod 1 1 a extending in a direction substantially parallel to the upper wall 1a of the buffer 1 and transverse to the side wall 2a of the frame 2 provided with the hinge A when it is hinged.
[0035] La tige 1 1 a du pêne 1 1 est rappelée à sa position d'engagement dans la gâche 12 du cadre 2 par un organe élastique 14 de préférence constitué par un ressort hélicoïdal de compression logé dans le boîtier 13 coaxialement à la tige 1 1 a du pêne 1 1 et perpendiculairement au rotor 10. The rod 1 1 a bolt January 1 is recalled to its engagement position in the striker 12 of the frame 2 by a resilient member 14 preferably constituted by a helical compression spring housed in the housing 13 coaxially to the rod 1 1a of the bolt 1 1 and perpendicular to the rotor 10.
[0036] Le boîtier 13 comprend deux parties 15, 16 amoviblement fixées l'une à l'autre par des vis de fixation 17 et comprenant respectivement une première partie longiligne 15 à section transversale sensiblement en forme de Ω à fond plat 18 dans laquelle sont logés à coulissement guidé la tige 1 1 a du pêne 1 1 et l'organe de rappel 14 et une seconde partie en forme de plaque plane 16 sous laquelle sont amoviblement fixées les deux branches planes latérales longilignes 19 de la première partie 15 par les vis 17 ancrées dans des trous taraudés 20 de la seconde partie 16. La seconde partie 16 présente une forme générale rectangulaire de préférence (en fonction du nervurage de la fonte en sous- face du tampon, cette forme pourra être différente). [0037] La seconde partie 16 du boîtier 13 comprend une plaquette 21 solidaire d'un bord de cette seconde partie perpendiculairement à celle-ci de manière à obturer l'ouverture d'extrémité de la première partie 15 opposée à celle autorisant le passage de l'extrémité biseautée 1 1 b de la tige 1 1 a du pêne 1 1 et sur laquelle plaquette 21 est en appui une extrémité de l'organe de rappel 14, dont la partie d'extrémité opposée est logée dans une échancrure d'extrémité en forme de U de la tige 1 1 a du pêne 1 1 . The housing 13 comprises two parts 15, 16 removably attached to each other by fixing screws 17 and respectively comprising a first elongate portion 15 of substantially flat-shaped Ω-shaped cross-section 18 in which are guided sliding guide the rod 1 1 a of the bolt 1 1 and the return member 14 and a second portion in the form of a flat plate 16 in which are removably attached the two flat longitudinal branches 19 of the first part 15 by the screws 17 anchored in threaded holes 20 of the second part 16. The second part 16 has a generally rectangular shape preferably (depending on the ribbing of the cast iron on the underside buffer, this shape may be different). The second portion 16 of the housing 13 comprises a plate 21 integral with an edge of the second portion perpendicular to it so as to close the end opening of the first portion 15 opposite to that allowing the passage of the beveled end 1 1b of the rod 1 1a of the bolt January 1 and on which plate 21 bears one end of the return member 14, the opposite end portion is housed in an end notch U-shaped of the rod 1 1 a of the bolt 1 1.
[0038] La seconde partie 16 du boîtier 13 est amoviblement fixée à quatre pieds 22 pouvant venir de fonderie en faisant saillie sous la paroi supérieure 1 a du tamponl . Plus précisément, la plaque plane sensiblement carrée de la seconde partie 16 du boîtier 13 comprend quatre perçages 23 réalisés aux quatre coins de cette plaque et permettant le passage de quatre vis 16a, pouvant s'ancrer respectivement dans quatre trous taraudés formés dans les parties d'extrémités des quatre pieds 22 du tampon 1 . The second portion 16 of the housing 13 is removably attached to four feet 22 which can come from a casting projecting under the upper wall 1a of the buffer. More specifically, the substantially square flat plate of the second portion 16 of the housing 13 comprises four holes 23 made at the four corners of this plate and allowing the passage of four screws 16a, which can be anchored respectively in four threaded holes formed in parts d ends of the four legs 22 of the pad 1.
[0039] La tige 1 1 a du pêne 1 1 comporte un évidement traversant 24 formé au voisinage de la partie centrale de cette tige et dont le rôle sera expliqué ci-dessous. The rod 1 1 has the bolt 1 1 has a through recess 24 formed in the vicinity of the central portion of this rod and whose role will be explained below.
[0040] Le rotor 10 comporte, solidaire de son extrémité 10a opposé à l'extrémité 10b pouvant être en prise avec la clé 3, une pièce formant came 25 engagée dans l'évidement 24 de la tige 1 1 a de pêne 1 1 , lequel évidement 24 est conformé pour coopérer avec la pièce formant came 25 du rotor 10 lorsque ce dernier est manœuvré par la clé 3 pour déplacer en translation la tige 1 1 a du pêne 1 1 dans le boîtier 13 à sa position dégagée de la gâche 12 à rencontre de la force de rappel de l'organe de rappel élastique 14. The rotor 10 has, integral with its end 10a opposite the end 10b can be engaged with the key 3, a cam member 25 engaged in the recess 24 of the rod 1 1 has bolt 1 1, which recess 24 is shaped to cooperate with the cam member 25 of the rotor 10 when it is operated by the key 3 to move in translation the rod 1 1 a of the bolt January 1 in the housing 13 in its disengaged position of the striker 12 against the restoring force of the elastic return member 14.
[0041 ] La pièce formant came 25 du rotor 10 a sa came proprement dite 25a s'étendant perpendiculairement à la direction longitudinale de la tige 1 1 a du pêne 1 1 lorsque ce dernier occupe sa position engagée dans la gâche 12. En outre, la tige 1 1 a du pêne 1 1 est en appui par une face interne 24a de son évidement 24 située du côté de l'organe de rappel 14 sur une face latérale 25b de la pièce formant came 25 et adjacente à la came 25a lorsque la tige 1 1 a du pêne 1 1 occupe sa position engagée dans la gâche 12 pour constituer de la sorte une butée de retenue de la tige 1 1 a du pêne 1 1 à cette position sous l'action de l'organe de rappel 14. [0042] La partie d'extrémité du rotor 10 comportant l'extrémité 10a à pièce formant came 25 traverse la paroi plane de la seconde partie 16 du boîtier 13 comme on le verra ultérieurement de manière que la pièce formant came 25 puisse être engagée dans l'évidement 24 de la tige du pêne 1 1 et, par conséquent, soit logée dans le boîtier 13. [0043] Le verrou 5 comprend un fût cylindrique 26 solidaire de la face supérieure de la plaque plane de la seconde partie 16 du boîtier 13 en s'étendant perpendiculairement à cette face de manière que le fût cylindrique 26 s'étende à une position fixe perpendiculairement à la paroi 1 a du tampon 1 en-dessous de cette paroi. The cam part 25 of the rotor 10 has its own cam 25a extending perpendicularly to the longitudinal direction of the rod 1 1a of the bolt 1 1 when the latter occupies its engaged position in the keeper 12. In addition, the rod 1 1a of the bolt January 1 is supported by an inner face 24a of its recess 24 located on the side of the return member 14 on a side face 25b of the cam member 25 and adjacent to the cam 25a when the rod 1 1 has the bolt 1 1 occupies its engaged position in the keeper 12 to thereby constitute a retaining stop of the rod 1 1 a of the bolt January 1 at this position under the action of the return member 14. The end portion of the rotor 10 having the cam-shaped end 10a passes through the flat wall of the second portion 16 of the housing 13 as will be seen later so that the cam member 25 can be engaged in the recess 24 of the rod of the bolt January 1 and, therefore, is housed in the housing 13. The latch 5 comprises a cylindrical barrel 26 integral with the upper face of the flat plate of the second portion 16 of the housing 13 extending perpendicularly to this face so that the cylindrical shaft 26 extends to a fixed position perpendicular to the wall 1a of the buffer 1 below this wall.
[0044] Le rotor 10 s'étend coaxialement dans le fût cylindrique 26 avec sa partie d'extrémité cylindrique inférieure de plus petit diamètre traversant un alésage central inférieur 27 du fût cylindrique 26 et la paroi plane de la seconde partie 16 du boîtier 13 afin que la pièce formant came 25 soit logée dans l'évidement 24 de la tige du pêne 1 1. Ainsi, le rotor 10 peut tourner sous l'action de la clé 3 dans l'alésage 27 du fût cylindrique 26 pour entraîner angulairement la pièce formant came 25 entre ses deux positions de retrait de la tige 1 1 a du pêne 1 1 de la gâche 12 et d'engagement de la tige 1 1 a du pêne 1 1 dans cette gâche. The rotor 10 extends coaxially in the cylindrical barrel 26 with its smaller cylindrical lower end portion passing through a lower central bore 27 of the cylindrical barrel 26 and the flat wall of the second portion 16 of the casing 13 so as to that the cam member 25 is housed in the recess 24 of the rod of the bolt 1 1. Thus, the rotor 10 can rotate under the action of the key 3 in the bore 27 of the cylindrical shaft 26 to angularly drive the piece forming a cam 25 between its two positions of withdrawal of the rod 1 1 a of the bolt 1 1 of the keeper 12 and engagement of the rod 1 1 a of the bolt January 1 in this striker.
[0045] La partie d'extrémité du fût cylindrique 26 opposée à la seconde partie 16 du boîtier 13 est coiffée par un manchon cylindrique 28 solidaire de cette partie d'extrémité et comportant une paroi d'extrémité transversale 29 au travers de laquelle est définie l'ouverture débouchante 4 qui comprend un orifice central circulaire 4a d'un diamètre légèrement supérieur au diamètre externe de la douille 7 de la clé 3 et deux rainures diamétralement opposées 4b débouchant dans l'orifice central circulaire 4a. The end portion of the cylindrical barrel 26 opposite the second portion 16 of the housing 13 is capped by a cylindrical sleeve 28 integral with this end portion and having a transverse end wall 29 through which is defined the opening opening 4 which comprises a circular central orifice 4a of a diameter slightly greater than the outer diameter of the sleeve 7 of the key 3 and two diametrically opposed grooves 4b opening into the central circular opening 4a.
[0046] Le manchon cylindrique 28 comporte à l'opposé de sa paroi d'extrémité 29 une embase annulaire 30 comportant deux perçages diamétralement opposés 31 dans lesquels sont engagés deux pions cylindriques 32, tels que par exemple des goupilles cannelées, emmanchés à force respectivement dans deux perçages correspondant 33 du fût cylindrique 26 pour fixer le manchon cylindrique 28 au fût cylindrique 26 avec la paroi transversale d'extrémité 29 en appui sur l'extrémité annulaire du fût cylindrique 26. [0047] Le verrou 5 comprend également un bouchon 34 permettant d'obturer l'orifice débouchant 4. Le bouchon de fermeture 34 est en forme de tronçon cylindrique comportant deux parties d'extrémités cylindriques 35, 36 séparées l'une de l'autre par une collerette 37 pouvant coulisser dans le fût cylindrique 26, l'une supérieure 35 des parties d'extrémités cylindriques du bouchon de fermeture 34 comportant deux tenons diamétralement opposés 38 pouvant s'engager avec la partie d'extrémité cylindrique 35 dans l'orifice central circulaire 4a et les rainures 4b du manchon cylindrique 28 pour obturer l'orifice débouchant 4 avec la collerette 37 en appui sous la paroi transversale d'extrémité 29 du manchon cylindrique 28. The cylindrical sleeve 28 comprises opposite its end wall 29 an annular base 30 having two diametrically opposed holes 31 in which are engaged two cylindrical pins 32, such as for example fluted pins, respectively press-fitted in two corresponding holes 33 of the cylindrical shaft 26 for fixing the cylindrical sleeve 28 to the cylindrical shaft 26 with the transverse end wall 29 resting on the annular end of the cylindrical shaft 26. The lock 5 also comprises a plug 34 for closing the opening opening 4. The closure cap 34 is in the form of a cylindrical section having two cylindrical end portions 35, 36 separated from one another by a collar 37 slidable in the cylindrical drum 26 , a superior 35 of the parties of cylindrical ends of the closure cap 34 having two diametrically opposite pins 38 engagable with the cylindrical end portion 35 in the central circular hole 4a and the grooves 4b of the cylindrical sleeve 28 to seal the opening opening 4 with the collar 37 bearing under the transverse end wall 29 of the cylindrical sleeve 28.
[0048] Un ressort hélicoïdal de compression 39 est monté précontraint entre la collerette 37 du bouchon de fermeture 34 et un épaulement interne 40 du fût cylindrique 26 de manière à exercer un effort de rappel du bouchon 34 à sa position d'obturation de l'ouverture débouchante 4. Ainsi, le bouchon 34 est rendu imperdable, c'est-à-dire qu'il ne peut être retiré du tampon 1 . A helical compression spring 39 is mounted prestressed between the flange 37 of the closure cap 34 and an internal shoulder 40 of the cylindrical barrel 26 so as to exert a return force of the cap 34 to its closed position of the opening opening 4. Thus, the plug 34 is made captive, that is to say it can not be removed from the buffer 1.
[0049] Le bouchon de fermeture 34 peut être axialement déplacé de façon guidée le long de la partie d'extrémité de plus grand diamètre 10b du rotor 10 à rencontre de la force de rappel du ressort 39 lorsque la douille 7 de la clé 3 est introduite au travers de l'ouverture débouchante 4. [0050] A cet effet, le bouchon de fermeture 34 a un orifice central traversantThe closure cap 34 may be axially guidedly displaced along the larger diameter end portion 10b of the rotor 10 against the restoring force of the spring 39 when the socket 7 of the key 3 is introduced through the opening opening 4. [0050] For this purpose, the closure cap 34 has a central orifice through
41 de forme complémentaire à la forme externe de la partie d'extrémité 10b du rotor 10. 41 of complementary shape to the outer shape of the end portion 10b of the rotor 10.
[0051 ] Plus particulièrement, la partie d'extrémité cylindrique 10b du rotor 10 comporte un méplat 10d s'étendant tout le long de la partie d'extrémité 10b pouvant coopérer avec un méplat 41 a de l'orifice traversant 41 du bouchon de fermeture 34. D'autres formes d'empreintes de clés peuvent exister. More particularly, the cylindrical end portion 10b of the rotor 10 comprises a flattened portion 10d extending along the end portion 10b that can cooperate with a flat portion 41a of the through hole 41 of the closure plug. 34. Other forms of key impressions may exist.
[0052] En outre, la partie d'extrémité 10b du rotor comporte un second méplat 10e de largeur moindre que celle du méplat 10d, raccordé à ce dernier et constituant un détrompeur coopérant avec un second méplat 41 b de l'orifice 41 du bouchon de fermeture 34. [0053] Ainsi, le bouchon de fermeture 34 peut coulisser axialement le long du rotor 10 à rencontre de la force de rappel du ressort 39 en étant solidarisé en rotation à cette partie d'extrémité. In addition, the end portion 10b of the rotor has a second flat 10e of smaller width than that of the flat portion 10d, connected thereto and constituting a polarizer cooperating with a second flat portion 41b of the hole 41 of the cap Thus, the closure cap 34 can slide axially along the rotor 10 against the restoring force of the spring 39 being secured in rotation to this end portion.
[0054] En position de fermeture du bouchon 34, la paroi d'extrémité 29 du manchon cylindrique 28, l'extrémité supérieure du bouchon de fermeture 34 et l'extrémité supérieure du rotor 10 sont en affleurement dans un même plan situé dans le plan de la face externe 1 c de la paroi 1 a du tampon 1. Il est à noter que le manchon cylindrique 28 est en grande partie logé dans un perçage 1 d de la paroi 1 a du tampon 1 . [0055] Le rotor 10 est axialement maintenu dans le fût cylindrique 26 par la pièce formant came 25 logée dans l'évidement 24 du pêne 1 1 entre la paroi de fond 18 de la première partie 15 du boîtier 13 et l'extrémité inférieure du fût cylindrique 26, tout en pouvant tourner d'un angle limité dans ce fût sous l'action de la clé 3. [0056] L'empreinte 9 de la douille 7 de la clé 3 est de forme complémentaire à celle de la partie d'extrémité 10b du rotor 10, c'est-à-dire dans l'exemple illustré que l'empreinte 9 comporte un méplat 9a apte à coopérer avec le méplat 10d de la partie d'extrémité 10b du rotor 10 et un second méplat de plus faible largeur 9b apte à coopérer avec le méplat 10e de la partie d'extrémité 10b du rotor 10 pour constituer ensemble un moyen détrompeur. In the closed position of the cap 34, the end wall 29 of the cylindrical sleeve 28, the upper end of the closure cap 34 and the upper end of the rotor 10 are flush in the same plane located in the plane. the outer face 1c of the wall 1a of the buffer 1. It should be noted that the cylindrical sleeve 28 is largely housed in a hole 1 d of the wall 1a of the buffer 1. The rotor 10 is axially held in the cylindrical drum 26 by the cam member 25 housed in the recess 24 of the bolt January 1 between the bottom wall 18 of the first portion 15 of the housing 13 and the lower end of the cylindrical barrel 26, while being able to rotate a limited angle in this barrel under the action of the key 3. [0056] The footprint 9 of the sleeve 7 of the key 3 is of complementary shape to that of the part d 10b end of the rotor 10, that is to say in the illustrated example that the cavity 9 has a flat 9a adapted to cooperate with the flat portion 10d of the end portion 10b of the rotor 10 and a second flat of Wider width 9b adapted to cooperate with the flat portion 10e of the end portion 10b of the rotor 10 to together constitute a polarizing means.
[0057] La douille 7 de la clé 3 comprend en outre deux ergots diamétralement opposés 7a faisant saillie de part et d'autre de cette douille et de forme conjuguée respectivement aux deux rainures diamétralement opposées 4b de l'ouverture débouchante 4. [0058] Le montage des différents composants du verrou 5 ressort déjà en grande partie de la description qui précède et va être maintenant expliqué. The socket 7 of the key 3 further comprises two diametrically opposed lugs 7a protruding from either side of this socket and shaped respectively conjugate to the two diametrically opposed grooves 4b of the opening opening 4. [0058] The mounting of the various components of the lock 5 is already largely in the foregoing description and will now be explained.
[0059] Tout d'abord, le rotor 10 est engagé dans le fût cylindrique 26 sans sa pièce formant came 25 de manière que sa partie d'extrémité inférieure cylindrique 10a soit engagée dans l'alésage 27 du fût cylindrique 26 puis la pièce formant came 25 est fixée à l'extrémité du rotor 10 par une vis de fixation centrale, non représentée. Ensuite, le pêne 1 1 et l'organe élastique de rappel 14 sont montés dans la première partie 15 du boîtier 13 et le rotor 10 est engagé dans l'évidement 24 du pêne 1 1 . La première partie 15 est alors fixée par les vis de fixation 17 sous la plaque de la seconde partie 16 du boîtier 13 et le ressort 39 est engagé dans le fût cylindrique 26. Ensuite, le bouchon de fermeture 34 est disposé au-dessus du ressort 39 de manière que la collerette 37 de ce bouchon soit en appui sur la spire d'extrémité supérieure de ce ressort. Puis, le manchon cylindrique 28 est engagé sur la partie d'extrémité supérieure du fût cylindrique 26 en positionnant l'orifice débouchant 4 de manière que les tenons 38 du bouchon 34 soient engagés respectivement dans les deux rainures 4b du manchon cylindrique 28 qui est alors fixé au fût cylindrique 26 par les pions cylindriques 32 traversant les perçages 31 de l'embase circulaire 30 du manchon cylindrique 28 et les perçages 33 du fût cylindrique 26. Puis l'ensemble assemblé des boîtier 13, fût cylindrique 26, bouchon de fermeture 34 et manchon cylindrique 38 est engagé sous la paroi 1 a du tampon 1 de manière que le manchon cylindrique 28 soit engagé dans le perçage 1 d de la paroi 1 a et le boîtier 13 est fixé par l'intermédiaire de sa seconde partie 16 aux quatre pieds 22 du tampon 1 . First, the rotor 10 is engaged in the cylindrical shaft 26 without its cam member 25 so that its cylindrical lower end portion 10a is engaged in the bore 27 of the cylindrical shaft 26 and the piece forming Cam 25 is fixed to the end of the rotor 10 by a central fixing screw, not shown. Then, the bolt January 1 and the elastic return member 14 are mounted in the first portion 15 of the housing 13 and the rotor 10 is engaged in the recess 24 of the bolt January 1. The first part 15 is then fixed by the fastening screws 17 under the plate of the second part 16 of the casing 13 and the spring 39 is engaged in the cylindrical drum 26. Next, the closure cap 34 is disposed above the spring 39 so that the flange 37 of the cap is supported on the upper end turn of this spring. Then, the cylindrical sleeve 28 is engaged on the upper end portion of the cylindrical barrel 26 by positioning the opening orifice 4 so that the tenons 38 of the plug 34 are engaged respectively in the two grooves 4b of the cylindrical sleeve 28 which is then attached to the cylindrical shaft 26 by the cylindrical pins 32 passing through the bores 31 of the circular base 30 of the cylindrical sleeve 28 and the bores 33 of the cylindrical shaft 26. Then the assembled assembly of the casings 13, cylindrical barrel 26, closure cap 34 and cylindrical sleeve 38 is engaged under the wall 1a of the buffer 1 so that the cylindrical sleeve 28 is engaged in the bore 1 d of the wall 1a and the housing 13 is fixed via its second portion 16 to the four legs 22 of the buffer 1.
[0060] Le fonctionnement du verrou de l'invention pour déverrouiller le tampon 1 du cadre 2 va être maintenant expliqué. [0061 ] A la position de verrouillage du tampon 1 au cadre 2, le pêne 1 1 occupe sa position à laquelle il est prisonnier, par son extrémité biseauté 1 1 a, de la gâche 12 du cadre 2 comme cela ressort mieux de la figure 4. The operation of the lock of the invention to unlock the buffer 1 of the frame 2 will now be explained. At the locking position of the buffer 1 to the frame 2, the bolt 1 1 occupies its position to which it is trapped, by its bevelled end 1 1 a, the striker 12 of the frame 2 as is best shown in FIG. 4.
[0062] Un opérateur positionne la clé 3 au-dessus de l'ouverture débouchante 4 de manière que la douille 7 et les ergots 7a soient en aplomb de l'ouverture 4 et des rainures 4b et l'introduction de la douille 7 dans le fût cylindrique 26 provoque l'enfoncement du bouchon de fermeture 34 dans ce fût à rencontre de la force de rappel du ressort 39 avec désengagement des tenons 38 du bouchon 34 des rainures 4b du manchon cylindrique 28. Lors de cet enfoncement, la partie d'extrémité 10b du rotor 10 est accouplée à la douille 7 de la clé 3 qui est ensuite tournée d'environ un quart de tour pour tourner également d'un quart de tour le bouchon 34 dans le fût 26 de manière que les deux ergots 7a de la douille 7 puissent venir en appui sous la paroi d'extrémité 29 du manchon cylindrique 28 et soient maintenus sous celle-ci par la force de rappel exercée par le ressort 39 sur la collerette 27 du bouchon 34, les ergots 7a étant ainsi emprisonnés entre la paroi 29 et la collerette 37, retenant la clé 3 au tampon 1 . [0063] Lors de la rotation d'un quart de tour du rotor 10, la pièce formant came 25 provoque par sa came 25a le déplacement en translation guidée de la tige 1 1 a du pêne 1 1 dans le boîtier 13 à rencontre de la force de rappel de l'organe élastique 14 de manière à désengager l'extrémité biseautée 1 1 a de cette tige de la gâche 12 du cadre 2. An operator positions the key 3 above the opening opening 4 so that the sleeve 7 and the lugs 7a are plumb with the opening 4 and grooves 4b and the introduction of the sleeve 7 in the cylindrical barrel 26 causes the closing cap 34 to be depressed in this barrel against the restoring force of the spring 39 with disengagement of the studs 38 from the plug 34 of the grooves 4b of the cylindrical sleeve 28. During this depression, the part of end 10b of the rotor 10 is coupled to the sleeve 7 of the key 3 which is then rotated about a quarter of a turn to also rotate a quarter turn the plug 34 in the barrel 26 so that the two lugs 7a of the bushing 7 can bear under the end wall 29 of the cylindrical sleeve 28 and are held below it by the restoring force exerted by the spring 39 on the flange 27 of the plug 34, the lugs 7a being thus trapped between the wall 29 and the coll erette 37, holding key 3 in buffer 1. During the rotation of a quarter turn of the rotor 10, the cam member 25 causes by its cam 25a the displacement in guided translation of the rod 1 1 a of the bolt 1 1 in the housing 13 against the return force of the elastic member 14 so as to disengage the beveled end 1 1 a of this rod of the striker 12 of the frame 2.
[0064] La pression exercée par le ressort 39 sur le bouchon 34 pour retenir la clé 3 emprisonnée au tampon 1 est suffisante pour que la pièce formant came 25 du rotor 10 reste à sa position de maintien de la tige 1 1 a du pêne 1 1 à sa position rétractée dans le boîtier 13 hors de la gâche 12. The pressure exerted by the spring 39 on the cap 34 to retain the key 3 trapped in the buffer 1 is sufficient for the cam member 25 of the rotor 10 remains at its position of holding the rod 1 1 a of the bolt 1 1 to its retracted position in the housing 13 out of the striker 12.
[0065] L'opérateur peut alors à l'aide de la clé 3 soulever le tampon 1 pour le désengager du cadre 2 par pivotement autour de l'axe d'articulation A. [0066] A la position relevée debout du tampon 1 , l'opérateur peut retirer la clé 3 de ce tampon en tournant celle-ci d'un quart de tour de manière à désengager les deux ergots 7a de la clé 3 des rainures 4b du manchon cylindrique 28, ramenant alors la pièce formant came 25 du rotor 10 à sa position à laquelle la tige 1 1 a du pêne 1 1 est ramenée par l'organe élastique de rappel 14 à sa position en saillie du boîtier 13. The operator can then with the aid of the key 3 lift the buffer 1 to disengage it from the frame 2 by pivoting about the hinge axis A. [0066] At the upright position of the buffer 1, the operator can remove the key 3 from this buffer by turning it a quarter of a turn so as to disengage the two lugs 7a of the key 3 of the grooves 4b of the cylindrical sleeve 28, then bringing the piece back forming a cam 25 of the rotor 10 at its position at which the rod 1 1 has the bolt 1 1 is brought by the elastic return member 14 to its projecting position of the housing 13.
[0067] Il est à noter que dans le cas où le tampon 1 n'est pas articulé au cadre 2, ce tampon est retiré complètement du cadre 2 pour dégager l'ouverture de ce dernier et la clé 3 peut être également retirée du tampon 1 comme expliqué au paragraphe précédent pour que la tige 1 1 a du pêne 1 1 soit ramenée automatiquement par l'organe élastique de rappel 14 à sa position en saillie du boîtier 13. It should be noted that in the case where the pad 1 is not articulated to the frame 2, this pad is removed completely from the frame 2 to clear the opening of the latter and the key 3 can also be removed from the buffer 1 as explained in the previous paragraph so that the rod 1 1 has the bolt 1 1 is automatically brought back by the elastic return member 14 to its projecting position of the housing 13.
[0068] Pour ramener le tampon 1 à sa position de fermeture du cadre 2, l'opérateur fait basculer manuellement le tampon 1 à partir de sa position debout. Lors du basculement du tampon 1 vers sa position de fermeture, la partie biseautée 1 1 a de la tige du pêne 1 1 heurte une face d'une partie saillante du cadre 2 située au-dessus de la gâche 12 pour provoquer le déplacement en translation de la tige 1 1 a du pêne 1 1 en partie dans le boîtier 13 à rencontre de la force de rappel de l'organe élastique 14 puis cet organe rappelle la tige 1 1 a du pêne 1 1 à sa position d'engagement de l'extrémité biseautée 1 1 b dans la gâche 12 du cadre 2 pour verrouiller à nouveau le tampon 1 à ce cadre. Bien entendu, l'engagement de cette extrémité biseautée 1 1 b dans la gâche 12 du cadre 2 pour verrouiller à nouveau le tampon 1 au cadre 2 s'effectue également dans le cas du tampon 1 non articulé au cadre 2 en déposant manuellement ce tampon directement dans l'ouverture du cadre 2. [0069] Ainsi, le tampon 1 est automatiquement verrouillé au cadre 2 sans l'aide de la clé 3. To return the buffer 1 to its closed position of the frame 2, the operator manually switches the buffer 1 from its upright position. When tilting buffer 1 to its closed position, tapered portion 11a of bolt rod 11 hits one side of a protruding portion of frame 2 located above striker 12 to cause translational movement. of the rod 1 1 has the bolt 1 1 in part in the housing 13 against the restoring force of the elastic member 14 and this member remembers the rod 1 1 a of the bolt 1 1 in its engagement position of the beveled end 1 1b in the keeper 12 of the frame 2 to lock the buffer 1 again to this frame. Of course, the engagement of this beveled end 1 1b in the keeper 12 of the frame 2 to lock the buffer 1 again to the frame 2 is also performed in the case of the buffer 1 not articulated to the frame 2 by manually depositing this buffer directly in the opening of the frame 2. [0069] Thus, the buffer 1 is automatically locked to the frame 2 without the help of the key 3.
[0070] Bien entendu, au besoin, à la position debout du tampon 1 , la clé 3 peut être maintenue prisonnière de ce tampon et l'opérateur peut faire basculer le tampon à sa position de fermeture du cadre 1 . Une fois le cadre 1 obturé par le tampon, l'opérateur tourne la clé 3 d'un quart de tour pour provoquer le pivotement angulaire de la pièce formant came 25 à sa position à laquelle l'organe élastique 14 peut rappeler la tige du pêne 1 1 à sa position engagée dans la gâche 12 du cadre 2 afin de verrouiller le tampon 1 à ce cadre. Of course, if necessary, the standing position of the buffer 1, the key 3 can be held captive of this buffer and the operator can switch the buffer to its closed position of the frame 1. Once the frame 1 closed by the buffer, the operator turns the key 3 by a quarter of a turn to cause the angular pivoting of the cam member 25 to its position at which the elastic member 14 can recall the rod bolt 1 1 to its engaged position in the keeper 12 of the frame 2 to lock the buffer 1 to this frame.
[0071 ] Le rotor 10 et la pièce formant came 25 peuvent être remplacés par tout autre mécanisme d'entraînement logé dans le tampon 1 et qui, sous l'action de la clé 3, permet le déplacement en translation du pêne 1 1 entre ses positions engagée dans la gâche 12 et dégagée de celle-ci. [0072] Le dispositif ci-dessus décrit de l'invention utilise un verrou qui permet le verrouillage automatique du tampon 1 au cadre 2 lors du basculement de ce tampon à sa position de fermeture du cadre 2 sans l'aide de la clé de manœuvre de ce verrou tout en garantissant la fonction d'anti-encrassement de l'ouverture d'accès à ce verrou à la position de fermeture du cadre 2 par le tampon 1 . Les avantages de l'invention sont la possibilité de fermer et verrouiller rapidement le tampon dans le cadre et d'interdire l'oubli sur le chantier de corps étrangers, tels qu'un bouchon amovible rapporté dans l'ouverture débouchante du tampon et retiré de cette ouverture pour accéder au rotor afin de déverrouiller le tampon du cadre. The rotor 10 and the cam member 25 may be replaced by any other drive mechanism housed in the buffer 1 and which, under the action of the key 3, allows the translational movement of the bolt 1 1 between its positions engaged in the keeper 12 and cleared thereof. The above described device of the invention uses a lock that allows the automatic locking of the buffer 1 to the frame 2 during the switchover of this buffer to its closed position of the frame 2 without the help of the key to maneuver of this lock while ensuring the anti-fouling function of the access opening to this lock to the closed position of the frame 2 by the buffer 1. The advantages of the invention are the ability to quickly close and lock the buffer in the frame and to prohibit the on-site forgetting of foreign bodies, such as a removable plug attached in the opening opening of the buffer and removed from this opening to access the rotor to unlock the frame buffer.

Claims

REVENDICATIONS
1 . Dispositif de verrouillage et de déverrouillage à l'aide d'une clé (3) d'un tampon (1 ) sur un cadre (2), comprenant un verrou (5) solidaire du tampon (1 ) qui présente une ouverture débouchante (4) d'accès au verrou (5) pour la clé (3) comportant un bras (6) dont une extrémité (7) permet de manœuvrer le verrou (5) lorsque la clé (3) est introduite dans l'ouverture (4) du tampon (1 ) d'une position de verrouillage dans laquelle un pêne (1 1 ) du verrou (5) est retenu prisonnier d'une gâche (12) du cadre (2) pour verrouiller le tampon (1 ) dans le cadre à une position de déverrouillage pour laquelle le pêne (1 1 ) est dégagé de la gâche (12) pour permettre le déplacement du tampon (1 ) à sa position dégagée de l'ouverture du cadre (2), le verrou (5) comprenant un mécanisme d'entraînement (10,25) relié au pêne (1 1 ) de manière à permettre le déplacement du pêne (1 1 ) sous l'action de la clé (3) entre ses positions prisonnière et dégagée de la gâche (12), caractérisé en ce que le pêne (1 1 ) du verrou (5) comprend une tige (1 1 a) rappelée à sa position prisonnière de la gâche (12) par un organe élastique de rappel (14) et le mécanisme d'entraînement (10,25) coopère avec le pêne (1 1 ) sous l'action de la clé (3) pour déplacer en translation à rencontre de la force de rappel de l'organe de rappel (14) la tige (1 1 a) du pêne (1 1 ) à sa position dégagée de la gâche (12), en ce que le pêne (1 1 ) du verrou (5), lorsque la clé (3) est retirée du tampon (1 ) à sa position dégagée de l'ouverture du cadre (2), permet le verrouillage automatique par l'organe élastique de rappel (14) du tampon (1 ) au cadre (2) lors de l'introduction du tampon (1 ) dans le cadre (2) et en ce que l'ouverture débouchante (4) du tampon (1 ), est obturée par un bouchon imperdable (34) rappelé en appui sous le tampon (1 ) à sa position de fermeture de l'ouverture débouchante (4) par un ressort de rappel (39). 1. Device for locking and unlocking with a key (3) a buffer (1) on a frame (2), comprising a latch (5) integral with the buffer (1) which has an opening opening (4) ) access to the lock (5) for the key (3) comprising an arm (6), one end (7) for operating the latch (5) when the key (3) is inserted into the opening (4) buffer (1) of a locking position in which a bolt (1 1) of the lock (5) is held prisoner of a striker (12) of the frame (2) to lock the buffer (1) in the frame to an unlocking position for which the bolt (1 1) is disengaged from the striker (12) to allow the displacement of the buffer (1) to its position released from the opening of the frame (2), the latch (5) comprising a driving mechanism (10,25) connected to the bolt (1 1) so as to allow the bolt (1 1) to move under the action of the key (3) between its captive and released positions of the striker ( 12), characterized in that the bolt (1 1) of the lock (5) comprises a rod (1 1 a) returned to its captive position of the striker (12) by an elastic return member (14) and the mechanism of drive (10,25) cooperates with the bolt (1 1) under the action of the key (3) to move in translation against the return force of the return member (14) the rod (1 1 a) the bolt (1 1) at its position released from the striker (12), in that the bolt (1 1) of the lock (5), when the key (3) is removed from the buffer (1) at its position disengaged from the opening of the frame (2), allows the automatic locking by the elastic return member (14) of the buffer (1) to the frame (2) during the introduction of the buffer (1) in the frame (2). ) and in that the opening opening (4) of the buffer (1), is closed by a cap cap (34) biased bearing under the buffer (1) at its closed position of the opening opening (4) by a return spring (39).
2. Dispositif selon la revendication 1 , caractérisé en ce que le mécanisme d'entraînement (10,25) comprend un rotor (10) monté à rotation dans le tampon (1 ) perpendiculairement sous celui-ci, accessible à l'une (10b) de ses extrémités par l'ouverture (4) et une pièce formant came (25) solidaire de l'extrémité opposée (10a) du rotor (10) et engagée dans un évidement (24) de la tige (1 1 a) du pêne (1 1 ) et coopérant avec la pièce formant came (25) du rotor (10) lorsque ce dernier est manœuvré par la clé (3) en prise avec l'extrémité correspondante (10b) du rotor (10) pour déplacer en translation à rencontre de la force de rappel de l'organe de rappel (14) la tige (1 1 a) du pêne (1 1 ) à sa position dégagée de la gâche (12). 2. Device according to claim 1, characterized in that the drive mechanism (10,25) comprises a rotor (10) rotatably mounted in the buffer (1) perpendicularly thereto, accessible to one (10b). ) of its ends by the opening (4) and a cam member (25) integral with the opposite end (10a) of the rotor (10) and engaged in a recess (24) of the rod (1 1 a) of bolt (1 1) and cooperating with the cam member (25) of the rotor (10) when the latter is operated by the key (3) engaged with the corresponding end (10b) of the rotor (10) to move in translation against the return force of the return member (14) the rod (1 1 a) of the bolt (1 1) in its released position of the striker (12).
3. Dispositif selon la revendication 2, caractérisé en ce que la tige (1 1 a) du pêne (1 1 ) et l'organe de rappel (14) sont coaxiaux et logés perpendiculairement au rotor (10) dans un boîtier (13) amoviblement fixé sous le tampon (1 ) et la partie d'extrémité (10a) du rotor (10) comportant la came (25) traverse une paroi (16) du boîtier (13) située côté face interne du tampon (1 ) de manière que la came (25) engagée dans l'évidemment (24) de la tige (1 1 a) du pêne (1 1 ) soit logée dans le boîtier (13). 3. Device according to claim 2, characterized in that the rod (1 1 a) of the bolt (1 1) and the return member (14) are coaxial and housed perpendicular to the rotor (10) in a housing (13) removably secured under the pad (1) and the end portion (10a) of the rotor (10) having the cam (25) extending through a wall (16) of the casing (13) on the side internal face of the buffer (1) so that the cam (25) engaged in the recess (24) of the rod (1 1 a) of the bolt (1 1) is housed in the housing (13).
4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que la came (25) du rotor (1 1 ) s'étend perpendiculairement à la direction longitudinale de la tige (1 1 a) du pêne4. Device according to claim 2 or 3, characterized in that the cam (25) of the rotor (1 1) extends perpendicularly to the longitudinal direction of the rod (1 1 a) of the bolt
(1 1 ) lorsque ce dernier occupe sa position prisonnière de la gâche (12). (1 1) when the latter occupies its position prisoner of the striker (12).
5. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que la tige (1 1 a) du pêne (1 1 ) est en appui par une face interne (24a) de son évidemment (24) située côté organe de rappel (14) sur une face latérale (10c) du rotor (10) adjacente à la came (25) lorsque la tige (1 1 a) du pêne (1 1 ) occupe sa position prisonnière dans la gâche5. Device according to one of claims 2 to 4, characterized in that the rod (1 1 a) of the bolt (1 1) is supported by an inner face (24a) of its obviously (24) located on the body side. reminder (14) on a side face (10c) of the rotor (10) adjacent to the cam (25) when the rod (1 1 a) of the bolt (1 1) occupies its captive position in the latch
(12) . (12).
6. Dispositif selon l'une des revendications 3 ou 4, caractérisé en ce que la tige (1 1 a) du pêne (1 1 ) est plate et le boîtier (13) comprend deux parties (15, 16) amoviblement fixées l'une à l'autre respectivement une première partie (15) à section transversale sensiblement en forme de Ω à fond plat (18) dans laquelle sont logés à coulissement guidé la tige (1 1 a) du pêne (1 1 ) et l'organe de rappel (14) et une seconde partie (16) en forme de plaque plane constituant la paroi précitée du boîtier (13) traversée par la came (25) et_à laquelle sont amoviblement fixées les deux branches latérales longilignes (19) de la première partie (15). 6. Device according to one of claims 3 or 4, characterized in that the rod (1 1 a) of the bolt (1 1) is flat and the housing (13) comprises two parts (15, 16) removably attached the one to the other respectively a first portion (15) of substantially flat-shaped Ω-shaped cross-section (18) in which the rod (1 1 a) of the bolt (1 1) is slidably guided and the member return member (14) and a second portion (16) in the form of a flat plate constituting the aforesaid wall of the housing (13) traversed by the cam (25) and to which the two elongate side branches (19) of the first part are removably attached. (15).
7. Dispositif selon la revendication 6, caractérisé en ce que la seconde partie (16) du boîtier (13) comprend une plaquette (21 ) solidaire d'un bord de cette seconde partie de manière à obturer l'ouverture d'extrémité de la première partie (15) opposée à celle autorisant le passage d'une extrémité biseautée (1 1 b) de la tige (1 1 a) du pêne (1 1 ) et sur laquelle plaquette (21 ) est en appui une extrémité de l'organe de rappel (14) constitué par un ressort hélicoïdal de compression. 7. Device according to claim 6, characterized in that the second portion (16) of the housing (13) comprises a plate (21) integral with an edge of this second portion so as to close the end opening of the first part (15) opposite to that allowing the passage of a beveled end (1 1 b) of the rod (1 1 a) of the bolt (1 1) and on which plate (21) bears one end of the return member (14) constituted by a helical compression spring.
8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que la seconde partie (16) du boîtier (13) est amoviblement fixée sous le tampon (1 ). 8. Device according to claim 6 or 7, characterized in that the second portion (16) of the housing (13) is removably fixed under the buffer (1).
9. Dispositif selon l'une des revendications 2 à 8, caractérisé en ce que l'ouverture débouchante (4) du tampon (1 ) est coaxiale avec l'extrémité (10b) du rotor (10) pouvant être en prise avec l'extrémité (7) du bras (6) de la clé (3) et en ce que la clé (3), lorsqu'introduite dans l'ouverture débouchante (4), provoque l'enfoncement_du bouchon de fermeture (34) à rencontre de la force de rappel du ressort (39) le long du rotor (10) dont l'extrémité (10b) est en prise avec l'extrémité (7) du bras (6) de la clé (3). 9. Device according to one of claims 2 to 8, characterized in that the opening opening (4) of the buffer (1) is coaxial with the end (10b) of the rotor (10) can be engaged with the end (7) of the arm (6) of the key (3) and in that the key (3), when introduced into the opening opening (4), causes the depression of the plug of closing (34) against the restoring force of the spring (39) along the rotor (10) whose end (10b) is engaged with the end (7) of the arm (6) of the key (3) ).
10. Dispositif selon la revendication 9, caractérisé en ce qu'il comprend un fût cylindrique (26) fixé sous le tampon (1 ) et comportant une paroi d'extrémité transversale (29) au travers de laquelle est réalisée l'ouverture débouchante (4) du tampon (1 ) qui comprend un orifice central circulaire (4a) et deux rainures diamétralement opposées (4b) débouchant dans l'orifice central circulaire (4a) et le bouchon de fermeture (34) est en forme de tronçon cylindrique monté à coulissement guidé dans le fût cylindrique (26) et sur le rotor (10) du verrou (5) et comportant deux parties d'extrémités cylindriques (35,36) séparées l'une de l'autre par une collerette (37) pouvant coulisser dans le fût cylindrique (26), l'une (35) des parties d'extrémités du bouchon de fermeture (34) comportant deux tenons diamétralement opposés (38) engagés respectivement dans les deux rainures (4b) de l'ouverture débouchante (4) avec la collerette (37) en appui sous la paroi transversale (19) du fût (26) lorsque le bouchon de fermeture (34) occupe sa position d'obturation de l'ouverture débouchante (4), les tenons (38) du bouchon de fermeture (34) étant désengagés de l'ouverture débouchante (4) lorsque le bras (6) de la clé (3) est en prise avec l'extrémité (10b) du rotor (10) du verrou (5) pour entraîner en rotation le rotor (10) à sa position à laquelle le pêne (1 1 ) du verrou (5) est désengagé de la gâche (12) du cadre (2). 10. Device according to claim 9, characterized in that it comprises a cylindrical barrel (26) fixed under the buffer (1) and having a transverse end wall (29) through which is made the opening opening ( 4) of the buffer (1) which comprises a circular central orifice (4a) and two diametrically opposed grooves (4b) opening into the circular central orifice (4a) and the closure plug (34) is in the form of a cylindrical section mounted at guided sliding in the cylindrical shaft (26) and the rotor (10) of the latch (5) and having two cylindrical end portions (35,36) separated from each other by a flange (37) slidable in the cylindrical barrel (26), one (35) of the end portions of the closure plug (34) having two diametrically opposite posts (38) respectively engaged in the two grooves (4b) of the opening opening (4). ) with the flange (37) resting under the transverse wall ale (19) of the barrel (26) when the closure cap (34) occupies its closed position of the opening opening (4), the tenons (38) of the closure cap (34) being disengaged from the opening outlet (4) when the arm (6) of the key (3) is engaged with the end (10b) of the rotor (10) of the latch (5) to rotate the rotor (10) to its position at which the bolt (1 1) of the lock (5) is disengaged from the striker (12) of the frame (2).
1 1. Dispositif selon la revendication 10, caractérisé en ce que le bouchon de fermeture (34) est solidaire en rotation de l'extrémité (10b) du rotor (10) du verrou (5). 1 1. Device according to claim 10, characterized in that the closure cap (34) is integral in rotation with the end (10b) of the rotor (10) of the latch (5).
12. Dispositif selon la revendication 10 ou 1 1 , caractérisé en ce que le ressort de rappel (39) du bouchon de fermeture (34) est logé dans le fût cylindrique (26) en étant monté précontraint entre la collerette (37) du bouchon cylindrique (34) et un épaulement interne (40) du fût cylindrique (26). 12. Device according to claim 10 or 1 1, characterized in that the return spring (39) of the closure cap (34) is housed in the cylindrical barrel (26) being mounted prestressed between the collar (37) of the cap cylindrical (34) and an inner shoulder (40) of the cylindrical barrel (26).
13. Dispositif selon l'une des revendications 10 à 12, caractérisé en ce que la paroi d'extrémité transversale (29) du fût cylindrique (26) fait partie d'un manchon cylindrique (28) fixé à la partie d'extrémité correspondante du fût cylindrique (26). 13. Device according to one of claims 10 to 12, characterized in that the transverse end wall (29) of the cylindrical shaft (26) is part of a cylindrical sleeve (28) attached to the corresponding end portion cylindrical drum (26).
14. Dispositif selon l'une des revendications 10 à 13 lorsque considérée en combinaison avec la revendication 6, caractérisé en ce que le fût cylindrique (26) est solidaire de la seconde partie en forme de plaque plane (16) du boîtier (13) et perpendiculairement à celle-ci. 14. Device according to one of claims 10 to 13 when considered in combination with claim 6, characterized in that the cylindrical shaft (26) is integral with the second flat plate-shaped portion (16) of the housing (13). and perpendicular to it.
15. Ensemble comportant une clé et un dispositif selon l'une des revendications 10 à 14, caractérisé en ce que la clé (3) comporte à l'extrémité tubulaire (7) de son bras (6) deux ergots diamétralement opposés (7a)) de forme conjuguée aux rainures (4b) de l'ouverture débouchante (4) pour permettre l'engagement de l'extrémité tubulaire (7) du bras (6) de la clé (3) au travers de l'ouverture débouchante (4) en enfonçant le bouchon de fermeture (34) dans le fût cylindrique (26) à rencontre de la force de rappel du ressort (39) et jusqu'à une position à laquelle les deux ergots (7a) de la clé (3) sont amenés en appui sous la paroi transversale (29) du fût cylindrique (26) par rotation de la clé (3) en prise avec le rotor (10) du verrou (5) et maintenus sous cette paroi par le bouchon de fermeture (34) et la force de rappel exercée par le ressort (39) sur la collerette (37) du bouchon de fermeture (34). 15. A set comprising a key and a device according to one of claims 10 to 14, characterized in that the key (3) comprises at the tubular end (7) of its arm (6) two diametrically opposed lugs (7a). ) of shape conjugate to the grooves (4b) of the opening opening (4) to allow the engagement of the tubular end (7) of the arm (6) of the key (3) through the opening opening (4). ) by pressing the closing plug (34) into the cylindrical shaft (26) against the return force of the spring (39) and to a position at which the two lugs (7a) of the key (3) are brought into support under the transverse wall (29) of the cylindrical drum (26) by rotation of the key (3) in engagement with the rotor (10) of the latch (5) and held under this wall by the closure plug (34) and the return force exerted by the spring (39) on the flange (37) of the closure cap (34).
EP17729185.3A 2016-05-24 2017-05-22 Device for locking and unlocking a manhole cover on a frame by means of a key, with the option of automatic keyless locking of said manhole cover on the frame Active EP3464762B1 (en)

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PL17729185T PL3464762T3 (en) 2016-05-24 2017-05-22 Device for locking and unlocking a manhole cover on a frame by means of a key, with the option of automatic keyless locking of said manhole cover on the frame

Applications Claiming Priority (2)

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FR1654622A FR3051818B1 (en) 2016-05-24 2016-05-24 LOCKING AND UNLOCKING DEVICE USING A KEY FROM A BUFFER ON A FRAME WITH THE POSSIBILITY OF AUTOMATIC KEYLESS LOCKING OF THIS BUFFER ON THE FRAME
PCT/FR2017/051256 WO2017203148A1 (en) 2016-05-24 2017-05-22 Device for locking and unlocking a manhole cover on a frame by means of a key, with the option of automatic keyless locking of said manhole cover on the frame

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EP3464762A1 true EP3464762A1 (en) 2019-04-10
EP3464762B1 EP3464762B1 (en) 2021-01-06

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CN (1) CN109154167B (en)
DK (1) DK3464762T3 (en)
ES (1) ES2866897T3 (en)
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IT201900003089A1 (en) * 2019-03-04 2020-09-04 Elesa Spa DOOR CLAMPING DEVICE
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FR3051818A1 (en) 2017-12-01
WO2017203148A1 (en) 2017-11-30
FR3051818B1 (en) 2021-05-28
DK3464762T3 (en) 2021-04-12
PT3464762T (en) 2021-04-28
MY192484A (en) 2022-08-23
EP3464762B1 (en) 2021-01-06
ES2866897T3 (en) 2021-10-20
CN109154167B (en) 2021-04-13
CN109154167A (en) 2019-01-04
PL3464762T3 (en) 2021-11-29
SG11201810342WA (en) 2018-12-28

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