• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a removable closure device (1) for transversely obstructing a passage (20) delimited by a cylindrical side wall (20a, 20b) characterized in that it comprises: a) a support and blocking element (2) comprising a central block (2a) supporting a plurality of arms (3) arranged perpendicularly in a radial position (XX ', YY') relative to the longitudinal axis (ZZ ') of said block and of said side wall, each arm (2) comprising an extendable rod (3b) comprising a shoe (4) intended to be locked against said side wall, and b) at least one complementary closure element (6) extending in a radial transverse plane (XX ', YY') perpendicular to said longitudinal axis (ZZ '), partly at least in or opposite the space (3-1) between said arms (3) so as to prevent the fall of an individual through said passage, said obstruction element (6) preferably being detachably attached to said support and blocking element (2). Figure for the abstract: Figure 2B.
    公开号:FR3090708A1
    申请号:FR1874003
    申请日:2018-12-21
    公开日:2020-06-26
    发明作者:Yvan Cardona
    申请人:Libervit；
    IPC主号:
    专利说明:

    Description
    Title of invention: DEVICE FOR SHUTTERING A PASSAGE
    Technical area
    The present invention relates to a device for temporarily obstructing a passage, in particular an access well to an underground pipe of an underground drainage network intended to collect and evacuate the various waters, whether natural such as runoff and rainwater or water produced by human activity such as washing water, drainage water or wastewater (household water and sewage; gray water)., called sewer , in addition to or temporarily replacing a manhole cover constituting the cover of the manhole cover. Its vocation is primarily utilitarian and safety: it is a question of limiting the access of the underground drainage networks only to the professionals (sewers) and of avoiding the accidents on the public highway. In the event of theft of a manhole cover or of displacement or loss linked to a flood, the closure device according to the invention makes it possible to prevent the fall of pedestrians during the time of replacement of the cover (frequent problem sometimes causing death of victims).
    More particularly, the object of the present invention is to provide a sewer mouth closure device which is installed in prevention of high floods or precipitation with the risk of sewer overflow or water from runoff or flood, which allows water to drain through the device while preventing a pedestrian fall into the sewer hole. Another object is to provide a device provided with fastening means sufficiently resistant to support the weight of a pedestrian who passes over it without detaching it from the vertical support surfaces and to support the weight of a cast iron manhole cover. if the device is placed on the underside thereof. Another object is to provide a device which can be easily installed in series from the same blocking tool on site.
    The sewer plates are most often round, with a diameter slightly larger than that of the hole because it is the simplest form to produce to prevent the plate from falling to the bottom of the hole, which constitutes a safety factor for the sewer workers working at the bottom. A square plate, for example, could fall if introduced through the diagonal of a square hole. A round shape is also easier to handle for workers or sewer workers, since it is possible to roll it up and replace it without having to align it, at least for the plates which are completely removed, some having a retaining lug and only swivel. In addition, for the hole, the cylindrical shape is the most solid and the simplest to avoid its compression by the pressure of the surrounding earth. The plate is therefore of the same shape as the hole.
    Prior art
    We know in WO 2010/125270 in the name of the applicant an autonomous protection device for temporarily obstructing a passage such as a corridor, a door or a window characterized in that it comprises at least one extendable bar longitudinally, preferably a telescopic bar, actuable in extension by a jack, said bar being capable of being detachably blocked in extension between two wall surfaces delimiting said passage called blocking surfaces, said extendable bar supporting a plurality of elements of obstruction to form a protective screen obstructing said passage, preferably said obstruction or said elements being removably attached thereto. This device makes it possible to temporarily obstruct a passage such as a bay or such as a corridor in order to prevent or delay the crossing of this passage by consenting or not consenting and / or to prevent the projection of objects to through said device, in particular from the outside to the inside or from the inside to the outside when the device is placed against a door or window. More particularly, this type of device aims to prevent suicidal defenestration during the arrest of madmen, but also aims to make it possible to channel people by temporarily obstructing certain passages, for example corridors, during demonstrations or crowd movement in places public or private.
    The device of WO 2010/125270 is not suitable for closing cylindrical passage, in particular circular and in a horizontal plane on the one hand and on the other hand does not meet the specific aims of the present invention in terms of partial obturation allowing the evacuation of water without authorizing a pedestrian passage with a fastening sufficiently resistant to support the weight of a pedestrian who goes over it and the weight of a cast iron manhole cover if the device is placed in front of it. Finally, it does not allow removable installation in easy series.
    To do this, the present invention provides a removable closure device for transversely obstructing a passage defined by a cylindrical side wall characterized in that it comprises:
    A) a support and blocking element comprising a central block comprising a longitudinal axis (ZZ'j intended to be positioned in the longitudinal axis of said side wall of said passage, supporting a plurality of arms arranged perpendicularly in a radial position (XX ', YY') relative to said longitudinal axis (ZZ'j, preferably the different arms being arranged symmetrically with respect to said longitudinal axis (ZZ'j; each arm comprising an extendable rod comprising at its free end a shoe , preferably fixed reversibly at the end of said extendable rod, capable of being locked in abutment against a said side wall by extension of said extendable rod, and
    B) at least one complementary closure element extending in a transverse plane (XX ', YY') perpendicular to said longitudinal axis (ZZ ') of said passage, partly at least in or facing screw the space between said arms so as to prevent the fall of an individual through said passage, said obstruction element being preferably removably attached to said support and blocking element.
    This system is possibly intended for several uses. In the event of a flood, it is installed to prevent severe flooding or precipitation. In the event of theft of a manhole cover, it helps to prevent pedestrians from falling during the time of replacement of the cover (a frequent problem in India, sometimes causing the death of victims). In the event of a terrorist attack or perimeter blockade, the system can be used to prohibit entry or exit of underground passages by security personnel, such as law enforcement.
    Preferably, the device according to the invention further comprises a removable actuating element able to cooperate with said central block to actuate in extension or retraction said extendable rods of said arms simultaneously, said actuating element preferably comprising first reversible fixing means on said support element and blocking, preferably at said central block.
    The ZZ axis is called longitudinal in that it extends in the longitudinal direction of said passage
    More particularly, in the device according to the invention:
    -Its said actuating element comprises a geared motor capable of actuating in rotation on itself along its longitudinal axis (ZZ ’) a shaft called the drive shaft, and
    Said support and blocking element comprises:
    Al) said arms each comprising a said drive shaft disposed in a said longitudinal direction in a perpendicular radial plane (XX ', YY') relative to said longitudinal axis (ZZ ') of said central block, each said shaft drive being able to be driven in rotation on itself along its radial longitudinal axis (XX ', YY') and able to cooperate with a said rod extendable in coaxial translation by helical connection such that said rotation on itself in one direction or the other of said drive shaft causes the translation of said extendable rod in extension or respectively in retraction in a said radial direction (XX ′, YY ′), and
    A2) a said central block comprising a shaft called the input shaft (2b) arranged along the longitudinal axis (ZZ ') of said central block and able to be actuated in rotation on itself relative to its longitudinal axis (ZZ ') when it cooperates with said drive shaft of said actuating element, and a bevel gear device comprising bevel gears able to cooperate with each other at the ends of said input shaft and said shafts drive so that the rotation on itself along its longitudinal axis (ZZ ') of said input shaft simultaneously causes the rotations on themselves of said drive shafts along their axes in their said radial directions (XX', YY ').
    More particularly, in the device according to the invention, said helical connection is of the screw-nut type, said drive shaft comprising an external helical thread forming a screw cooperating with a tubular rod of which at least a portion d end forms a nut engaged on the thread of the threaded screw formed by said drive shaft, said nut being prevented from following said rotation of said drive shaft and said tubular rod being guided in said translation by a pin of guiding said nut due to the fact that said guide pin cooperates with a rectilinear internal groove of a guiding and protective cylinder inside which extend said drive shaft and at least one end portion of the said tubular rod, the free end of the rod comprising said pad always remaining outside of said guide and protection cylinder.
    Said guide and protection cylinder also acts as protection for all of the rod and drive shaft in helical connection.
    More particularly, the device according to the invention comprises a single closure element extending above said arms, adapted to be removably attached to said support element and blocking preferably at said block central.
    More particularly, said closure element comprises a hoop connected to a central hub by spokes, said central hub of said hoop being able to be removably attached to said support element and locking around said central block so that said radii of the hoop extend between said arms, preferably along the bisectors of the angles between said arms.
    More particularly, said support and blocking element comprises four said arms arranged in a cross at 90 ° around the central block.
    In an alternative embodiment, said closure element comprises or cooperates with threads or pieces of rubber for absorbing a fall between said arms.
    In another alternative embodiment, said closure element comprises pointed elements to dissuade from crossing said passage.
    More particularly still, said actuating element comprises a handle in the form of a flywheel around said gearmotor to which it is fixed.
    More particularly still, said actuating element comprises first reversible fixing means on said closure element, preferably at a central hub of said hoop-shaped closure element, the latter comprising second reversible fixing means on said support and blocking element, preferably at said central block.
    It is understood that in this embodiment, said actuating element is fixed reversibly on said support element and fixing by means of said shutter element before or after fixing thereof on the said support and blocking element.
    More particularly still, said actuating element comprises a handle in the form of a flywheel around said gearmotor to which it is fixed, said flywheel comprising first reversible locking means allowing the blocking of the reversible fixing of said element. actuation on said closure element, by a relative axial rotational movement around said longitudinal axis (ZZ ') of a ring with a rotating magnet with respect to said flywheel and below said flywheel, at least one magnet of the said ring being able to cooperate respectively with at least a first metal elastic locking pin in a hole of said closure element, said first locking pin being able to come out of said hole attracted against said magnet, preferably thanks to a first spring, when the positioning of said actuating element relative to said closure element and the rotation of said ring places said magnet opposite of the first elastic locking pin of said closure element, preferably opposite a first elastic locking pin in a hole at a central hub of said hoop-shaped closure element.
    More particularly still, said closure element comprises second reversible locking means allowing blocking of the reversible fixing on said support element and blocking of all of said actuating element fixed to said element of obturation, by translational movements and relative axial rotation with respect to said support element and fixing of the assembly of said actuating element fixed to said obturation element, along and respectively around said longitudinal axis (ZZ ').
    These translational movements and relative axial rotation relative to said support member and fixing of all of said actuating element fixed to said closure element, guarantee that said actuating element remains fixed to said shutter element.
    More particularly still, said closure element is in the form of a hoop and said second reversible locking means comprise:
    - At a central hub of said hoop-shaped closure element, at least a second locking pin and a second spring in a cylindrical recess cy6 within said central hoop means, and
    - On the outer wall of said central block, at least one locking groove comprising a first vertical part in the longitudinal direction (ZZ ') of said block, a second part in an arc around the periphery of said block and a third vertical part, said second part in an arc forming the junction of the lower ends of said first and third vertical parts, said first vertical part being open at its upper end and said third vertical part being closed at its upper end,
    -So that said second reversible locking means are capable of being actuated by locking by:
    - A first movement in vertical translation down from the assembly of said actuating element fixed to said closure element relative to said central block and coaxially with the latter along its longitudinal axis (ZZ '), said second locking pin thus being able to be guided in translation in said first vertical groove part to its lower end by compressing said second spring thereby,
    A second rotational movement of the assembly of said actuating element fixed to said obturation element relative to said central block, said second locking pin thus being able to be guided in rotation in said second circular groove part up to the lower end of said third vertical groove part, while maintaining said second spring compressed, and
    - a third movement in vertical upward translation of all of said actuating element fixed to said closure element relative to said central block and coaxially with the latter along its longitudinal axis (ZZ '), said second locking pin thus being able to be guided in translation in said third vertical groove part to its upper end due to the extension of said second spring.
    The present invention also provides a method of installing a closure device according to the invention for transversely obstructing a passage delimited by a cylindrical side wall characterized in that it comprises the steps of:
    A) positioning of the device according to the invention in said passage with the extendable rods of said arms in the retracted position, said arms being arranged in a perpendicular radial plane (XX ', YY') relative to said longitudinal axis ( ZZ ') of said central block itself arranged coaxially with the axis of said passage, and
    B) actuation using a said actuating element, said arms for blocking said pads bearing against the cylindrical wall of said passage by extension of said extendable rods, said cooperating actuating element with the said central block for actuating in extension the said extendable rods of the said arms simultaneously.
    More particularly still, the method for installing a closure device according to the invention comprises the additional steps of:
    A) positioning of said device according to the invention in said passage with the extendable rod of said arms in the retracted position, using a grip element in the form of a flywheel fixed around a gearmotor of said element d '' removable actuation, and
    B) actuation of said arms to block said pads bearing against the cylindrical wall of said passage by extension of said extensible rods using said gearmotor of said actuating element, and
    C) removal of said removable actuating element in order to leave in the passage only the whole of said support and blocking element and of said obturation element.
    More particularly still, the method comprises the prior steps of: al) fixing on said closure element of a said actuating element comprising a gripping element in the form of a steering wheel, then
    A2) fixing of the assembly of said actuating element assembled to said obturation element on said central block of said support and blocking element.
    By doing so, said steering wheel-shaped gripping element facilitates the establishment of said closure element on said support and blocking element, then facilitates the establishment of closure device according to the invention 1 with its 3 elements thus assembled in an appropriate position in said passage, then facilitated the removal of said actuating element to use it for mounting and installing another obturation device according to the invention in another passage.
    Other characteristics and advantages of the present invention will emerge more clearly on reading the description which follows, given in an illustrative and nonlimiting manner, with reference to the appended drawings in which: Brief description of the drawings
    [Fig.l]
    FIG. 1 represents a perspective view of a closure device according to the invention with a said support and blocking element 2 supporting a closure element 6 and an actuation element 10.
    [Fig.2A]
    FIG. 2A represents a first variant of a sealing device according to the invention placed in a sewer mouth 20 with a cylindrical vertical underground wall with circular section 20a, with a said support and blocking element 2 supporting a shutter 6.
    [Fig.2B]
    FIG. 2B represents a second variant of a sealing device according to the invention placed in a sewer mouth 20 with a cylindrical vertical underground wall with square section 20b, with a said support and blocking element 2 supporting a shutter 6 and an actuating element 10.
    [Fig.3A]
    FIG. 3A represents a perspective view of a said support and blocking element 2 of a shutter device according to the invention.
    [Fig.3B]
    FIG. 3B represents a top view of a said support and blocking element 2 of a shutter device according to the invention.
    [Fig.3C]
    FIG. 3C represents a view in axial vertical section along XX ′ of a said support and blocking element 2 of a closure device according to the invention with the rod 3b retracted.
    [Fig.3D]
    FIG. 3D represents a view in axial vertical section along XX ′ of a said support and blocking element 2 of a closure device according to the invention with the rod 3b in extension.
    [Fig.4]
    FIG. 4 represents a perspective view of the cylindrical walls 2al and 2a2 delimiting an empty space 2a3 of a central block 2a devoid of the input shaft 2b of a said support and blocking element 2.
    [Fig.4A]
    FIG. 4A represents a view in axial vertical section along XX ′ showing the detail of the helical connection of the drive shaft 3a and the extendable rod 3b of an arm 3 of a said support and blocking element 2 a closure device according to the invention.
    [Fig.4B]
    FIG. 4B represents a view in axial vertical section along XX ′ showing the detail of the reversible connection of the end of the extendable rod 3a with a shoe 4 of a said support and blocking element 2 of a device d obturation according to the invention.
    [Fig.5A]
    FIG. 5A shows a perspective view of an actuating element 10 with geared motor 11 and flywheel 12 with a magnet ring 9 on the underside.
    [Fig.5B]
    FIG. 5B represents a view in axial vertical section along ZZ ’of an actuating element 10 with geared motor 11 and flywheel 12 with a magnet ring 9 on the underside.
    [Fig.6A]
    FIG. 6A represents a perspective view of a shutter element 6 of the hoop type.
    [Fig.6B]
    FIG. 6B represents a view in axial vertical section along ZZ ’of a shutter element 6 of the hoop type.
    [Fig.7A]
    FIG. 7A represents a perspective view of the fixing of an actuating element 10 of FIGS. 5A and 5B on a shutter element 6 of the hoop type of FIGS. 6A and 6B.
    [Fig.7B]
    FIG. 7B shows a view in axial vertical section along ZZ ’of the fixing of an actuating element 10 of FIGS. 5A and 5B on a closure element 6 of the hoop type of FIGS. 6A and 6B.
    [Fig.8A]
    FIG. 8A represents a view in axial vertical section along ZZ 'of the detail of the mode of operation of the fixing of an actuating element 10 on a shutter element 6 of the hoop type of FIGS. 7A and 7B, showing the cooperation of the magnet ring 9 and of the first locking pin 8 without locking.
    [Fig.8B]
    FIG. 8B represents a view in axial vertical section along ZZ ′ of the detail of the mode of operation of the fixing of an actuating element 10 on a shutter element 6 of the hoop type of FIGS. 7A and 7B, showing the cooperation of the magnet ring 9 and of the first locking pin 8 in the locking position before locking.
    [Fig.9A]
    FIG. 9A represents a view in horizontal section along AA of FIG. 8A. [Fig.9B]
    FIG. 9B represents a view in horizontal section along AA of FIG. 8B. [Fig.10]
    FIG. 10 includes FIGS. 10A-10C which represent views in vertical section along ZZ 'showing the cooperation of a locking pin 13 of a central hub 6c-6d of a shutter element 6 of the hoop type during the locking of the latter on a central block 2a of a said support and blocking element 2 by movements of vertical translation and rotation along ZZ 'of said assembly 10.6 with respect to said central block 2a according to FIGS. 10A-10C respectively.
    [Fig.ll]
    FIG. 11 includes FIGS. 11A-1 IC which represent perspective views showing the cooperation of a locking pin 13 of a central hub 6c-6d of a shutter element 6 of the hoop type during the locking of that - Here on a central block 2a of a said support and blocking element 2 by movements of vertical translation and rotation along ZZ 'of said assembly 10.6 relative to said central block 2a according to FIGS. 10A-10C respectively.
    In Figures 1 to 11, there is shown an embodiment of a manhole closure device according to the invention 1 comprising 3 elements which can be fixed to one another by means reversible locking mechanism, namely:
    - A support and blocking element 2 comprising a central block 2a enclosing a bevel gear bevel gear 5 cooperating with four arms 3 arranged in a cross with their longitudinal axes in directions XX 'and YY' perpendicularly and radially with respect to the axis ZZ 'of said central block 2a to which they are connected, and
    - a complementary shutter element 6 of the hoop type, and
    - An actuating element 10 comprising (a) an electric geared motor 11 capable of actuating a motor shaft 11a along the axis ZZ 'cooperating with the angular return device 5 and (b) a gripping element 12 in the shape of a steering wheel.
    In practice, the fixing of said actuating element 10 is carried out on said closure element 6, which facilitates the fixing of said closure element 6 on said central block 2a of said support and blocking element. 2 with said steering wheel-shaped gripping element 12. Then, said steering wheel-shaped gripping element 12 facilitates the positioning of said closure device according to the invention 1 with its 3 elements 2, 3 and 10 as well assembled.
    In Figure 1 and 2B, there is shown the shutter device according to the invention 1 with its 3 elements 2, 3 and 10 thus assembled. In FIGS. 2A and 2B, the closure device according to the invention 1 is shown in the blocking position with the blocking pads 4 bearing against the cylindrical wall 20a by extension of the extendable rods 3b arranged in a radial plane XX ', YY' perpendicular to the longitudinal axis of the central block 2a itself arranged coaxially to the axis ZZ 'of the cylindrical walls 20a and 20b. In FIG. 2A, said actuating element 10 has been removed, comprising a gripping element 12 and a geared motor 11, in order to be able to use it for the installation of another obturation device in another hole 20.
    In FIGS. 3A-3D, the structure and the operation of the arms 3 mounted on the central block 2a of the support and blocking element 2 are shown.
    Each arm 3 comprises a drive shaft 3a disposed in a said longitudinal direction in a perpendicular radial plane XX ', YY' relative to said longitudinal axis ZZ 'of said central block 2a. Each drive shaft 3a crosses at a first end an orifice 2-1 of the cylindrical wall 2a2 of the block 2a shown in figure and ends at the level of said perrial end by a bevel gear 5a emerging inside a space vacuum 2a3 delimited by the wall 2a2 of said central block 2a.
    As shown in Figure 3A, said central block 2a comprises an input shaft 2b arranged along the longitudinal axis ZZ 'of said central block 2a and ends at its lower end by a bevel gear 5b inside the empty space 2a3 delimited by the wall 2a2 of said central block 2a. The bevel gear 5b at the end of the input shaft 2b is able to cooperate with the 4 gears 5a at the ends of the drive shafts to form a bevel gear 5.The input shaft 2b comprises an axial recess 2d open in the upper part of the central block 2a able to receive and cooperate with the motor axis 1a of the geared motor 11. Thus, the input shaft 2b can be rotated on itself relative to to its longitudinal axis ZZ 'when it cooperates with said drive shaft 11a of said actuating element 10 and when the gearmotor is electrically actuated. The rotary actuation of said input shaft 2b makes it possible to actuate the bevel gears 5a and 5b of the angular gearbox 5 in rotation so that the rotation on itself along its longitudinal axis ZZ 'of said input shaft 2b simultaneously drives the rotations on themselves of said drive shafts 3a along their axes in their said radial directions XX ', YY'.
    As shown in Figures 3B-3D and 4A-4B, each arm 3 comprises a drive shaft 3a comprises an external peripheral helical thread 3al forming a screw cooperating with a nut 3b 1 engaged on the thread 3al, the said nut 3b 1 being fixed to the end of an extendable tubular rod 3b capable of covering said drive shaft 3a coaxially when the tubular rod 3b is in the retracted position with the nut 3b 1 furthest from the central block 2a as shown in the figure 3C and able to extend beyond the drive shaft 3a when the tubular rod 3b is in the extended position shown in FIG. 3D with the nut 3bl furthest from the central block 2a.
    A guide pin 3b2 at the periphery of the nut 3bl cooperates with a rectilinear internal groove 3c 1 of a guide and protection cylinder 3c coaxially covering said drive shaft 3a and said tubular rod 3b in the retracted position. Thus said drive shaft 3a is able to cooperate with said extendable tubular rod 3b in coaxial translation by helical connection because when said drive shaft 3a is rotated on itself along its longitudinal longitudinal axis XX ' , YY ', said rotation about itself in one direction or the other of said drive shaft 3a causes the translation of said tubular rod 3b in extension or respectively in retraction in a said radial direction XX', YY 'because that the nut 3b 1 and therefore said tubular rod 3b which is attached to it are prevented from rotating in rotation by themselves by blocking and guiding the pin 3b2 in the groove 3c2 thus forcing said coaxial translation of said rod 3b . The tubular rod 3b slides in translation through an end ring 3c2 closing the annular space between the guide cylinder and protection 3c and the tubular rod 3b at the end of the guide cylinder and protection 3c.
    In FIG. 3B, on the arms 3 at the top and on the right, the guide and protection cylinder 3c has not been shown for mounting the drive shafts 3a which otherwise are obscured by the said cylinders 3c. Said guide and blocking cylinder 3c also acts as a protection for the rod 3b and drive shaft 3a assembly in helical connection.
    The free end of the tubular rod 3b furthest from the central block 2a comprises a shoe 4 always remaining outside of said guide and protection cylinder 3c when the rod 3b is in the maximum retracted position.
    In Figure 4B, there is shown an embodiment of a reversible attachment of the shoe 4 at the end of the rod 3b using a ball ring system by which a sliding ring on a cylindrical heel 4a of the shoe 4 covers and holds a ball 3dl in a groove of a terminal piece 3d at the end of the rod 3b. It suffices to pull the sliding ring 4b on the heel 4a to elastically release the ball 3dl out of the groove of the terminal piece 3d at the end of the cylindrical rod 3b in order to be able to separate the plate 4 from the rod 3b. reversible is quick and ergonomic. Thus it is possible to change the shoe 4 so that it has a shape adapted to the surface of the cylindrical side wall 20a, 20b of the passage 20 against which it must be applied in abutment.
    The shoe 4 comprises an end piece 4c fixed to the heel 4a which provides the connection at the end of the arm 3 preferably an end piece 4c made of rigid elastomeric material. The end piece 4c has a longitudinal shape in the direction ZZ 'of the axis of the passage or hole 20. The end piece 4c comprises a contact surface 4d with the cylindrical wall 20a, 20b of the passage 20 which has a contour in cross section in the plane XX ', YY' which follows the contour of said cylindrical wall 20a, 20b in cross section in the plane XX ', YY'.
    In FIGS. 5A and 5B, an actuating element 10 is shown with a geared motor 11 and a grip element in the form of a flywheel 12 and a magnet ring 9 on the underside intended for the reversible locking of said actuating element on a shutter element 6 of the hoop type shown in FIG. 6A-6B.
    The reduction gear 11 is able to actuate in place rotation along the axis ZZ ’of a passage 20 with a cylindrical wall 2a, 20b. A gripping element 12 comprises a circular flywheel 12a and a first coaxial central hub 12c connected together by first connecting elements by forming first spokes 12b arranged in a cross (to
    90 °). The tubular wall of the first central hub 12c is surmounted by the said gearmotor which is fixed to it by studs 11b and delimits a first cylindrical central recess 12c 1 crossed by the said drive shaft 1 arranged coaxially along the axis ZZ ’. On the underside of the tubular wall of the first central hub 12c is arranged coaxially a ring 9 which is fixed to it by a circular attachment 9-1 coaxial along ZZ 'so that the ring 9 is capable of being manually driven in relative rotation by report to said first central hub 12c to effect the reversible locking of said actuating element on a closure element 6 of the hoop type shown in FIG. 6A-6B while maintaining said ring integral with the penny opposite the tubular wall of said first central hub 12c.
    The ring 9 comprises two magnets 9a in two first diametrically opposite empty housings 9b.
    In FIGS. 6A-6B, there is shown a shutter element 6 of the hoop type comprising:
    - a second central hub 6c of axis ZZ ’and a peripheral circular rim 6a of axis ZZ’ when the element is in place coaxially on the device of the invention 1 in passage 20, and
    -4 four second spokes 6b arranged in a cross (at 90 °) in a radial plane XX ’,
    YY ’ensuring the connection with respect to a second central hub 6c of axis ZZ’ and a wheel rim 6a.
    The hoop 6 is intended to be positioned above the support and blocking element 2 with the second spokes 6b arranged on the 4 arms 3 in the directions of the bisectors of the empty spaces 3-1 between two adjacent arms 3. The second spokes 6b have a length such that the rim 6a arrives at the end 3c2 of the protective cylinder 3c. In practice, the hoop 6 and the protective cylinders 3c of the arms 3 are dimensioned so that the arms 3 being in maximum extension with the pads 4 being in abutment on the lateral surface 20a, 20b, the rim 6a arrives approximately at the half the length of the said arms 3, that is to say that the length of the protective cylinders 3c represents approximately half the length of the said bars 3 in maximum extension.
    The second central hub 6c is of tubular shape delimiting an internal recess of the 6th coaxial cylindrical axis ZZ ’. The second central hub 6c is surmounted by a coaxial upper part 6d of cylindrical tubular shape forming a shoulder 6c 1 at the junction between the second central hub 6c and its upper part 6d. The upper part 6d delimits an internal recess 6th 1 of smaller diameter than the obviously 6th and communicating with it.
    The shoulder 6c 1 is capable of supporting the circular fastener 9-1 and the ring 9 on the underside of the tubular wall of the first central hub 12c when the said actuating element 10 comprising the geared motor 11 and the flywheel 12 are assembled on the hoop 6 by threading coaxially the ring 9 and the tubular wall of the first central hub 12c on the upper part 6d surmounting the second central hub 6b as shown in FIGS. 7A-7B.
    The tubular wall of the upper part 6d surmounting the second central hub 6c comprises at its lower end close to the shoulder 6c 1, two second hollow housings 8b diametrically opposite respectively containing two first locking pins 8.
    A second coaxial spring 7 which serves for the reversible locking of the hoop 6 on the support and blocking element 2 is disposed within the recess 6e delimited by the tubular wall of the first central hub 12c. The tubular wall of the first central hub 12c has four second protruding locking pins on its internal face projecting towards the central recess 6e. The second spring 7 and the second locking pins are able to cooperate with external grooves 2c at the periphery of the walls of the central block 2a of the support and blocking element 2 in order to achieve a reversible locking of the hoop 6 on the central block 2a .
    In FIGS. 8A-9A, the ring 9 is in a relative position relative to the second central hub 6c and its upper part 6d such that the first two locking pins 8 are held in the hollow housings 8b by compressing first springs 8a because the first hollow housing 9b is not positioned opposite the second hollow housing 8b.
    In FIGS. 8B-9B, the ring 9 is in the position of relative rotation relative to the second central hub 6c and its upper part 6d such that the two first hollow housings 9b are positioned opposite the second housings hollow 8b. Thus, the first two metal locking pins 8 are ready to be attracted by the magnets 9a and out of the second hollow housings 8b by extension of the first springs 8a because the first hollow housings 9b are not positioned opposite each other. second hollow housings 8b. A new rotation of the ring 9 will cause the first two metallic locking pins 8 to be re-entered into the second hollow housings 8b and compression of the first springs 8a.
    Figures 10A-1 IA, 10B-1 IB, 10C-1 IC, there is shown the operation of the second reversible locking means allowing the reversible fixing of the hoop 6 on the central block 2a of said support member and blocking 2, by relative axial translation and rotation movements of the assembly of said actuating element 10 fixed to said closure element 6 relative to said said support and fixing element 2, long and respectively around said longitudinal axis ZZ '.
    In Figure 4, there is shown the outer wall of said central block 2a comprises four grooves 2c each comprising a first vertical part 2c 1 in the longitudinal direction (ZZ ') of said block, a second part 2c2 in an arc at the periphery of said cylindrical block 2a corresponding for example to a rotation of 45 °, and a third vertical part 2c3, said second part 2c2 in an arc forming the junction of the lower ends of said first and third vertical parts 2cl, 21c3, said first vertical part 2c 1 being open at its upper end and said third vertical part 2c3 being closed at its upper end.
    In FIG. 10A, there is shown a first movement in vertical translation descending from the assembly of said actuating element 10 fixed to said obturation element 6 relative to said central block 2a and coaxially with it according to its longitudinal axis ZZ ', by engaging the drive shaft 11a in an upper axial hole 2d of the input shaft 2b of said central block 2a, before the second central hub 6c of the hoop 6 comes to bear on the shoulder 2nd of the central block 2a, the second spring 7 being in extension.
    In FIG. 11A, the sequence of the first movement in vertical translation descending from the assembly of said actuating element 10 fixed to said obturation element 6 relative to said central block 2a is shown and coaxial with it. ci along its longitudinal axis ZZ ', said second blocking pin 13 of the hoop 6 being engaged and guided in translation in said first vertical part of groove 2c 1. This first movement continues until the second central hub 6c of the hoop 6 comes to bear on the shoulder 2e of the central block 2a and the pin 13 arrives at the lower end of said first vertical part of groove 2clen thereby compressing said second spring 7 as shown in FIG. 10B. This first movement in downward vertical translation is facilitated by the gripping and the axial positioning of the assembly of said actuating element 10 fixed to said obturation element 6 relative to said central block 2a, using the handwheel 12.
    At this stage, as shown in Figure 1 IB, by turning the handwheel 12, a second rotational movement of the assembly of said actuating element 10 fixed to said obturation element 6 relative to said central block is carried out. 2a, the said second blocking pin 13 being thus guided in rotation in the said second circular part of groove 2c2 to the lower end of the said third vertical part of the groove 2c3, while maintaining the said second spring 7 compressed.
    In FIGS. 10C and 1 IC, there is shown a third movement in upward vertical translation of the assembly of said actuating element 10 fixed to said obturation element 6 relative to said central block 2a and coaxially with it. ci along its longitudinal axis ZZ ′, said second blocking pin 13 thus being guided in translation in said third vertical part of groove 2c3 to its upper end due to the extension of said second spring 7.
    The shutter device according to the invention is an articulated system of 4 arms making it possible to block the passage of a manhole such as a manhole. The arm extension system has been described as being preferably an electromechanical operating via a screw nut system to achieve a helical connection causing the deployment of the rod accompanied by a torque reduction by gears to provide the necessary effort with bevel gears to redirect the axes of rotation. The input shaft 2b is rotated via the axis of the motor 11a and the bevel gear system 5 allows the redirection of the main rotation on the 4 secondary shafts 3a which cause the helical connection (screw-nut) . Thus, also by blocking the rotation of the outlet rod 3b via a groove 3c 1 in the guide 3c, the system is deployed. It stresses when the plates 4 come into contact with the walls of the manhole 20.
    However, they can be replaced by hydraulic or pneumatic cylinders, thereby achieving a sliding or sliding pivot connection rather than a helical connection, the said cylinders being coupled to a supply of hydraulic or pneumatic fluid. In this case, a manual preset is necessary to reduce the volume of fluid used.
    The shutter device according to the invention is adaptable for all geometries and dimensions of the manhole thanks to a constraint produced on the walls of the hole by activation of the arm extension system.
    The shutter device according to the invention is mainly used for prevention in the event of flooding (the system can be sealed), prevention during work, or the obturation of possible exits in the event of an attack . In these multiple cases, the shutter device according to the invention makes it possible to prevent the fall of a person through the manhole, or else to prohibit the voluntary passage of an individual.
    A method of installing a closure device according to invention 1 for transversely obstructing a passage 20 delimited by a cylindrical side wall 20a, 20b, comprises the steps of:
    1) attachment to said closure element 6, of a said actuating element 10 comprising a gripping element in the form of a flywheel 12, then
    2) fixing on said central block 2a of said support and blocking element 2, of the assembly of said actuating element 10 assembled to said obturation element 6, and [0112] 3) using the 'flying-shaped gripping element 12, positioning of the device according to the invention in the said passage 20 with the extendable rods 3b of the said arms in the retracted position, the said arms being arranged in a perpendicular radial plane XX', YY 'with respect to to said longitudinal axis ZZ 'of said central block 2a itself arranged coaxially with the axis of said passage 20, and
    4) actuation of the geared motor 11 to actuate in extension said four extensible rods 3b simultaneously said arms 3 in extension to block said pads 4 bearing against the cylindrical wall 20a, 20ab of said passage as shown in Figure 2A-2B , and
    5) removal of said removable actuating element 10 so as to leave in the passage only the whole of said support and locking element 2 and of said closure element 6 as shown in FIG. 2A.
    The closing hoop 6 is lockable via a simple mechanical action carried out by the user on the steering wheel 12. It is therefore necessary to align the locking pins 13 with the grooves 2c 1 present on the central block 2a. Then, we push the assembly and we rotate 45 ° in the groove 2c2. Finally, the flywheel 12 is released, which allows the assembly to go back up thanks to the spring 7. The locking pins 12 will thus become blocked in the groove 2c3. Unlocking is simple: you must perform the actions listed in reverse order.
    In step 5), the flywheel 12 is separated by a simple 30 ° rotation of the magnet ring 9.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    Claims [Claim 1] Removable closure device (1) allowing a passage (20) delimited transversely to be delimited by a cylindrical side wall (20a, 20b) characterized in that it comprises:a) a support and blocking element (2) comprising a central block (2a) comprising a longitudinal axis (ZZ ') intended to be positioned in the longitudinal axis of said side wall (20a, 20b) of said passage, supporting a plurality arms (3) arranged perpendicularly in a radial position (XX ', YY') relative to said longitudinal axis (ZZ '), preferably the different arms being arranged symmetrically with respect to said longitudinal axis (ZZ'); each arm (2) comprising an extendable rod (3b) comprising at its free end a shoe (4), preferably fixed reversibly at the end of said extendable rod (3b), capable of being locked in abutment against a said side wall (20a, 20b) by extension of said extendable rod (3b), andb) at least one complementary closure element (6) extending in a transverse plane (XX ', YY') perpendicular to said longitudinal axis (ZZ ') of said passage, partly at least in or facing screw the space (3-1) between said arms (3) so as to prevent the fall of an individual through said passage, said obstruction element (6) being preferably removably attached to said element support and blocking (2). [Claim 2] Device according to claim 1, characterized in that it further comprises a removable actuating element (10) able to cooperate with said central block (2a) to actuate in extension or retraction said extendable rods (3b) of said arm (3) simultaneously, said actuating element (10) preferably comprising first reversible fixing means on said support and locking element (2), preferably at said central block (2a). [Claim 3] Device according to claim 2, characterized in that-said actuating element (10) comprises a geared motor (11) capable of actuating in rotation on itself along its longitudinal axis (ZZ ’) a shaft called the drive shaft (1 la), and-said support and blocking element (2) includes:al) said arms (3) each comprising a said drive shaft (3a) disposed in said longitudinal direction in a perpendicular radial plane (XX ’, YY’) relative to said longitudinal axis (ZZ ’) of said block
    [Claim 4] [Claim 5] [Claim 6] central, each said drive shaft (3a) being able to be rotated on itself along its longitudinal longitudinal axis (XX ', YY') and able to cooperate with a said extendable rod (3b) in coaxial translation by helical connection such that said rotation on itself in one direction or the other of said drive shaft (3a) causes the translation of said extendable rod (3b) in extension or respectively in retraction in a said radial direction (XX ', YY'), and a2) a said central block (2a) comprising a shaft called the input shaft (2b) arranged along the longitudinal axis (ZZ ') of said block central and capable of being actuated in rotation about itself relative to its longitudinal axis (ZZ ') when it cooperates with said drive shaft (lia) of said actuating element (10), and a return device for angle (5) comprising bevel gears (5a-5b) able to cooperate with each other at the ends of said input shaft ( 2b) and said drive shafts (3a) so that the rotation on itself along its longitudinal axis (ZZ ') of said input shaft (2b) simultaneously causes the rotations on themselves of said shafts d 'drive (3a) along their axes in their said radial directions (XX', YY ').
    Device according to Claim 3, characterized in that the said helical connection is of the screw-nut type, the said drive shaft (3a) comprising an external helical thread (3al) forming a screw cooperating with a tubular rod (3b) of which at least one end portion forms a nut (3bl) engaged on the thread (3al) of the threaded screw formed by said drive shaft (3a), said nut being prevented from following said rotation of said shaft drive and said tubular rod (3b) being guided in said translation by a guide pin (3b2) of said nut (3b 1) due to the fact that said guide pin (3b2) cooperates with a rectilinear internal groove (3c 1) d '' a guiding and protection cylinder (3c) inside which coaxially extend said drive shaft (3a) and at least one end portion of said tubular rod (3b), the free end of the rod comprising said pad (4) always remaining outside said guide and protection cylinder (3c) .
    Device according to one of claims 1 to 4, characterized in that it comprises a single closure element (6) extending above said arms, capable of being removably attached to said support element and blocking (2) preferably at said central block (2a).
    Device according to claim 5, characterized in that said element
    shutter (6) comprises a hoop (6a) connected to a central hub (6c) by spokes (6b), said central hub (6c) of said hoop-shaped shutter element being capable of being fixed in a removable manner (7,13,2c) to said support and blocking element (2) around said central block (2a) so that said spokes (6b) of the hoop (6a) extend between said arms (3), preferably along the bisectors of the angles between said arms. [Claim 7] Device according to one of claims 1 to 6, characterized in that said support and blocking element (2) comprises 4 said arms arranged in a cross at 90 ° around the central block (2a). [Claim 8] Device according to one of claims 2 to 7, characterized in that said actuating element (10) comprises a gripping element in the form of a flywheel (12) around said gearmotor (11) to which it is fixed. [Claim 9] Device according to claim 1 to 8, characterized in that said actuation element (10) comprises first reversible fixing means (9,8) on said closure element (6), preferably on a central hub (6c) of said hoop-shaped closure element, the latter comprising second reversible fixing means (7,13,2c) on said support and locking element (2), preferably on said central block (2a ). [Claim 10] Device according to claim 9, characterized in that. said actuating element (10) comprises a flywheel-shaped gripping element (12) around said geared motor (11a) to which it is fixed, said flywheel (12) comprising first reversible locking means (9,8) allowing the reversible fixing of said actuating element (10) to be blocked on said closure element (6), by a movement of relative axial rotation around said longitudinal axis (ZZ ') of a magnet ring (9 -9a) rotatable relative to said flywheel (12) and on the underside of said flywheel (12), at least one magnet (9a) of said ring being able to cooperate with at least one first metal pin of elastic blocking respectively (8- 8a) in a hole (8b) of said closure element (6), said first metal locking pin (8) being able to come out of said hole (8b) attracted against said magnet (9a), preferably thanks to a first spring (8a), when the positioning of said actuating element (10) relative to said obturating element on (6) and the rotation of said ring (9) places said magnet (9a) opposite the first elastic locking pin (8-8a) of said closure element, preferably opposite -vis a first pawn of
    [Claim 11] [Claim 12] elastic locking (8-8a) in a hole (8b) at a central hub (6c) of said hoop-shaped closure element (6). Device according to claim 10, characterized in that said closure element (6) comprises second reversible locking means (7,13,2c) allowing a blocking of the reversible fixing on said support and blocking element (2) of the assembly of said actuating element (10) fixed to said closure element (6), by translational movements and relative axial rotation relative to said said support and fixing element (2) of said assembly actuation element (10) fixed to said closure element (6), along and respectively around said longitudinal axis (ZZ ').
    Device according to claim 11, characterized in that said closure element is in the form of a hoop (6) and said second reversible locking means (7, 13, 2c) comprise:
    - At a central hub (6c) of said closure element (6), at least a second locking pin (13) and a second spring (7) in a cylindrical recess (6e) within said means central (6b), and - on the outer wall of said central block (2a), at least one locking groove (2c) comprising a first vertical part (2c 1) in the longitudinal direction (ZZ ') of said block, a second part (2c2) in an arc at the periphery of said block and a third vertical part (2c3), said second part (2c2) in an arc forming the junction of the lower ends of said first and third vertical parts (2cl, 21c3) , said first vertical part (2cl) being open at its upper end and said third vertical part (2c3) being closed at its upper end,
    - so that said second reversible locking means are capable of being actuated by locking by:
    - A first movement in vertical translation descending from the assembly of said actuating element (10) fixed to said obturation element (6) relative to said central block and coaxially with the latter along its longitudinal axis (ZZ ') , said second locking pin (13) thus being able to be guided in translation in said first vertical groove part (2cl) to its lower end by compressing in doing so said second spring (7),
    - A second rotational movement of the assembly of said actuating element (10) fixed to said closure element (6) relative to said central block, said second locking pin (13) thus being [Claim 13] [Claim 14] able to be guided in rotation in said second circular groove part (2c2) to the lower end of said third vertical groove part (2c3), while maintaining said second spring (7) compressed, and
    - a third movement in upward vertical translation of the assembly of said actuating element (10) fixed to said obturation element (6) relative to said central block and coaxially with the latter along its longitudinal axis (ZZ ') , said second locking pin (13) thus being able to be guided in translation in said third vertical groove part (2c3) to its upper end due to the extension of said second spring (7).
    Method for installing a closure device according to one of claims 1 to 12 for transversely obstructing a passage (20) delimited by a cylindrical side wall (20a, 20b), characterized in that it comprises the steps from:
    a) positioning of the device according to the invention (1) in said passage (20) with the extendable rods (3b) of said arms in the retracted position, said arms being arranged in a perpendicular radial plane (XX ', YY') relative to said longitudinal axis (ZZ ') of said central block (2a) itself arranged coaxially with the axis of said passage (20), and
    b) actuation by means of a said actuating element (10), of the said arms (3) for blocking the said pads (4) bearing against the cylindrical wall (20a, 20ab) of the said passage by extension of the said extendable rods (3b), said actuating element (10) cooperating with said central block (2a) to actuate in extension said extendable rods (3b) of said arms (3) simultaneously.
    Method for installing a closure device according to claim 13, characterized in that it comprises the steps of: a) positioning said device according to the invention (1) in said passage (20) with the rod extendable (3b) of said arms in the retracted position, using a flywheel-shaped gripping element (12) fixed around a geared motor (11a) of said removable actuating element (10), and
    b) actuation of said arms (3) to block said pads (4) bearing against the cylindrical wall (20a, 20ab) of said passage by extension of said extendable rods (3b) using said gearmotor (11) of the said actuating element (10), and
    c) removal of said removable actuating element (10) so as not to leave
    in the passage (20) that all of said support and blocking element (2) and said closure element (6). [Claim 15] Method for installing a closure device according to claim 13 or 14, characterized in that it comprises the prior steps of:al) attachment to said closure element (6) of a said actuating element (10) comprising a handwheel-shaped gripping element (12), thena2) fixing of the assembly of said actuating element (10) assembled to said obturation element (6) on said central block (2a) of said support and blocking element (2).
    1/10
    类似技术:
    公开号 | 公开日 | 专利标题
    WO2020128232A1|2020-06-25|Device for blocking a passage
    CA2615686C|2011-12-13|Device for articulating a stopper or lid to a frame in particular of a man hole
    FR2518204A1|1983-06-17|UNDERWATER DEVICES COMPRISING REMOTELY CONTROLLED BLOCKING MEANS
    FR2679593A1|1993-01-29|Screwing and unscrewing machine, in particular for a string of pipes of a drilling installation
    FR2540279A1|1984-08-03|SCREWDRIVER APPARATUS, IN PARTICULAR FOR SCREWING-DISCHARGING THE FASTENERS OF THE COVER OF THE TANK OF A NUCLEAR REACTOR
    FR2717548A1|1995-09-22|Stud tensioning device, in particular for the bolting of covers and in particular of pressure vessels of reactors.
    WO2003071174A1|2003-08-28|Safety valve against positive pressure in pressurized fluid tanks
    FR2666782A1|1992-03-20|STORAGE DEVICE FOR SPARE WHEEL.
    EP0620624A1|1994-10-19|Assembly for tipping over control cabitnets, capable of being lowered into the ground
    WO2002101152A1|2002-12-19|Dismountable protective barrier
    WO2020016500A1|2020-01-23|Detachable thrust device for opening a door
    FR2992870B1|2019-07-26|FILTER DRUM TREE WITH RETRACTABLE EXTREMITS
    FR3028579A1|2016-05-20|REMOVABLE FASTENING DEVICE, A SUPPORT, A FIXING ELEMENT, FIXING SYSTEM COMPRISING SAID DEVICE, AND CORRESPONDING UNLOCKING DEVICE
    BE1010936A3|1999-03-02|Closure device for door.
    FR2728012A1|1996-06-14|Device for preventing access to lower section of ladder with safety hoop
    FR2813456A1|2002-03-01|MANUAL CONTROL DEVICE OF AN ELECTRIC MOTOR FOR ROLLER SHUTTER
    FR2933109A1|2010-01-01|SYSTEM AND METHOD FOR HANDLING A HEAVY PLATE
    FR2799894A1|2001-04-20|RETRACTABLE DISTRIBUTION TERMINAL
    FR2833987A1|2003-06-27|Locking device for public highway infrastructures comprises unit sheltering locking mechanism coupled to driving arm having cavity into which key fits
    FR2744756A1|1997-08-14|Sliding armoured door for building
    FR2854413A1|2004-11-05|Safety barrier for preventing passage of unauthorized vehicle e.g. bicycle, has tube with one end linked to support and another end placed at sufficient distance from ground, to rotate half- barriers after removing blocking unit
    FR2736663A1|1997-01-17|Lock for cover of access passage to underground conduits etc.
    FR2500573A1|1982-08-27|Appts. for making and breaking threaded joints - in pipes of large dia. using threaded locking ring
    FR3016381A1|2015-07-17|SIDE ARMS FOR FORMWORK.
    FR2824352A1|2002-11-08|Padlock has recessed barrel lock and casing sections spaced by laminated wedge to accommodate different barrel length locks
    同族专利:
    公开号 | 公开日
    IL284166D0|2021-08-31|
    FR3090708B1|2021-03-12|
    WO2020128232A1|2020-06-25|
    CN113382780A|2021-09-10|
    US20220074162A1|2022-03-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2005093168A1|2004-03-26|2005-10-06|Jens Skov|Fall-prevention device intended to prevent the unhindered fall of people into a corrugated well shaft.|
    WO2010125270A2|2009-04-30|2010-11-04|Libervit|Device for blocking a passage|
    US20130312338A1|2012-05-25|2013-11-28|Chris Gaspar|Adjustable support apparatus for a utility access cover|
    DE102013013520A1|2013-08-13|2015-02-19|Guardia Turnavision UG |Security cross to secure temporary openings|
    US20160122126A1|2014-11-04|2016-05-05|Polylok, Inc.|Universal Secondary Safety System Including A Riser And Screen|
    US9574338B1|2015-08-21|2017-02-21|Jesse C. Cannon|Sump pit safety shield|
    CN111894041A|2020-08-28|2020-11-06|安徽绿洲危险废物综合利用有限公司|Anti-seismic wear-resistant composite resin inspection well|
    CN112854301A|2021-01-08|2021-05-28|李洪玉|Prevent falling high support nature well lid|
    法律状态:
    2019-12-20| PLFP| Fee payment|Year of fee payment: 2 |
    2020-06-26| PLSC| Publication of the preliminary search report|Effective date: 20200626 |
    2020-12-22| PLFP| Fee payment|Year of fee payment: 3 |
    2021-12-21| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1874003A|FR3090708B1|2018-12-21|2018-12-21|DEVICE FOR OBSTRUCTING A PASSAGE|FR1874003A| FR3090708B1|2018-12-21|2018-12-21|DEVICE FOR OBSTRUCTING A PASSAGE|
    CN201980085283.5A| CN113382780A|2018-12-21|2019-12-11|Device for stopping a channel|
    PCT/FR2019/053013| WO2020128232A1|2018-12-21|2019-12-11|Device for blocking a passage|
    US17/416,740| US20220074162A1|2018-12-21|2019-12-11|Device for blocking a passage|
    IL284166A| IL284166D0|2018-12-21|2021-06-17|Device for blocking a passage|
    [返回顶部]