EP3181297A1 - Fuel cartridge for a gas-fixing tool and gas-fixing tool comprising such a cartridge - Google Patents

Fuel cartridge for a gas-fixing tool and gas-fixing tool comprising such a cartridge Download PDF

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Publication number
EP3181297A1
EP3181297A1 EP16200427.9A EP16200427A EP3181297A1 EP 3181297 A1 EP3181297 A1 EP 3181297A1 EP 16200427 A EP16200427 A EP 16200427A EP 3181297 A1 EP3181297 A1 EP 3181297A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
axis
housing
tool
ring
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
EP16200427.9A
Other languages
German (de)
French (fr)
Other versions
EP3181297B1 (en
Inventor
Pierre Cordeiro
Patrick Herelier
Frédéric Nayrac
Alain Vettoretti
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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Filing date
Publication date
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP3181297A1 publication Critical patent/EP3181297A1/en
Application granted granted Critical
Publication of EP3181297B1 publication Critical patent/EP3181297B1/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/105—Cartridge ejecting mechanisms and latch mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
    • B25C1/163—Cartridges

Definitions

  • the invention relates to a fuel cartridge for a gas fastening tool and a gas fastening tool comprising such a cartridge.
  • Sealing or fixing tools are tools comprising an internal combustion engine operating by firing a fuel-air mixture in a combustion chamber, the fuel being injected into the chamber by a device injection from a fuel cartridge. Such tools are intended to drive fasteners in support materials to attach parts. Gas nailers are now widespread.
  • fuel for an internal combustion engine there may be mentioned for example gasoline, alcohol, in liquid form and / or gas.
  • such a tool is portable and comprises a housing in which is mounted the propulsion internal combustion engine of a driving piston of a fastener.
  • a tool may also include a battery power supply and a handle, handling and shooting on which is mounted a detent actuating the tool.
  • a firing cycle includes several steps such as dispensing a quantity of fuel through the cartridge, admitting the fuel into the chamber, mixing the fuel with air in the chamber, igniting and combusting the fuel. mixing for driving the piston, and evacuation of combustion gases from the chamber.
  • a fuel cartridge conventionally comprises a body including an internal fuel storage cavity, and a fuel nozzle. fuel connection and distribution configured to cooperate by interlocking with the aforementioned injection device.
  • the body is generally configured to be engaged at least partly in a housing of the tool and to be disengaged, by translation along a longitudinal axis of the body.
  • the present invention provides an improvement to this technology.
  • the invention thus proposes a fuel cartridge for a gas fixation tool, comprising a body comprising an internal fuel storage cavity, said body being configured to be engaged at least partly in a housing of said tool and to be disengaged therefrom. , by translation along a longitudinal axis of said body, said cartridge further comprising a fuel connection and distribution nozzle configured to cooperate with a complementary means of said tool during said engagement of said body, characterized in that said cartridge comprises means for facilitating its disengagement from said housing, said means comprising at least a first cam surface which extends at least partly around said axis.
  • the invention thus proposes to facilitate removal of the cartridge by first means, namely at least a first cam surface, provided on the cartridge.
  • This or each cam surface extends at least partly around the longitudinal axis of the body of the cartridge, that is to say that its slope is at least partly oriented about this axis.
  • the intersection between a first plane containing said cam surface and a second plane perpendicular to said longitudinal axis and passing through said cam surface substantially forms a radius of said longitudinal axis.
  • the present invention also relates to a gas fastening tool, comprising a housing having a housing configured to receive a fuel cartridge as described above, said tool further comprising at least a second cam surface configured to cooperate with said first cam surface and extending at least in part about a longitudinal axis of said housing.
  • front, rear, bottom, top, axial, radial, etc. refer to the position of an element with respect to an axis and / or with respect to the normal conditions of use of the element. 'tool.
  • the attachment tool 10 is partially shown in the drawings.
  • This tool comprises a housing 12 in which there is an internal combustion engine with a combustion chamber (or a pre-combustion chamber and a combustion chamber) intended to contain a mixture of air and fuel whose ignition causes the propulsion of a piston intended to drive a fastener extracted from a feed magazine, the fastener being intended to be anchored in a support material, at the exit of a guide-tip extending to the front of the case. All these components of gas fastening tools are well known to those skilled in the art and therefore they have not all been represented in the drawings.
  • the fuel supply of the combustion chamber of the engine is effected, via an injection member 14, from a fuel gas cartridge 16 ( Figures 1 to 3 ).
  • the housing 12 of the tool comprises a handle for gripping and handling the tool.
  • the handle is also used for shooting, by an actuation trigger mounted on it.
  • the portion of the housing 12 shown in the drawings may extend substantially parallel to the handle of the tool, and downstream thereof when using the tool.
  • the illustrated portion of the housing 12 comprises two half-shells which are fastened together by screws for example.
  • the two half-shells define between them a first housing 18 for receiving the injection device 14 and a second housing 20 for receiving the cartridge 16 and more exactly a part thereof.
  • the visible part of the housing 12 has an elongated shape and the housings 18, 20 are arranged one behind the other along the longitudinal axis A of the housing.
  • the housing 18 is substantially located in the middle of the housing 12 and the housing 20 extends between the housing 18 and a longitudinal end of the housing 12.
  • the housing 20 has an elongated shape of axis A and comprises a longitudinal end which communicates with the housing 18 and an opposite longitudinal end which opens on the aforementioned longitudinal end of the housing, to form an opening 22 for mounting / dismounting the cartridge. in dwelling 20.
  • the opening 22 generally has a circular or ovoid shape and has a notch 24, oriented substantially radially relative to the axis A.
  • This notch 24 has a generally rectangular shape.
  • Each half-shell comprises on its inner surface stiffeners 26 and internal walls 28 ( figure 3 ).
  • the housing 20 is delimited by internal inner walls 28a substantially parallel to the axis A and by two inner walls 28b upper substantially perpendicular to the axis A.
  • the first stiffeners 26a extend between the walls 28a, substantially perpendicular to the axis A
  • second stiffeners 26b extend between the walls 28a, substantially parallel to the axis A.
  • the stiffeners 26a, 26b are shaped to extend in the housing 20 in the continuity of the passage section defined by the Thus, the passage section defined by the stiffeners 26a, 26b of the half-shells is substantially identical to that defined by the opening 22. It is thus understood that the stiffeners 26b extend in the extension of the lateral edges of the 24.
  • One of the walls 28a extends in the extension of the front edge of the notch.
  • the stiffeners 26b or the walls 28a form guide means of the cartridge during its assembly / disassembly, as will be described in more detail in the following.
  • the walls 28b are parallel and spaced apart from each other.
  • the housing 18 is delimited by internal walls in the example shown, whose walls 28b, a rear wall 28c substantially parallel to the axis A and a wall 28d upper substantially perpendicular to the axis A.
  • the walls 28b, 28c and 28d of the half-shells comprise orifices for mounting parts of the injection device 14 and the cartridge 16.
  • the injection device 14 comprises a tip 30, here of the female type, connection by interlocking to a tip, so the male type, the cartridge 16, which is not visible in the drawings.
  • the tip 30 is housed with other elements of the device 14 in the housing 18 and is connected to a pipe 32 for supplying the combustion chamber of the tool.
  • This pipe 32 is generally S-shaped and comprises a rectilinear elongated portion which is housed between the rear walls 28a and outer walls 34 of the half-shells.
  • the end of the pipe 32, opposite the nozzle 30, is connected to a member 36 for connection to the combustion chamber.
  • This member 36 is mounted in an orifice of the outer walls 34 of the housing.
  • the aforementioned elements of the device 14 are further mounted and wedged in the aforementioned orifices of the walls 28c and 28d.
  • the tip 30, better visible at the figure 4 comprises a cylindrical body having an internal bore engaging the tip of the cartridge 16.
  • the lower end of the body of the nozzle, located on the side of the housing 20, is free to cooperate with the cartridge, and its end opposite is connected to an outer annular flange 38.
  • the flange 38 comprises at its outer periphery a notch 40 which extends over an angular sector of predetermined angle around the axis A.
  • the aforementioned free end of the body of the nozzle comprises an outer annular groove 42.
  • three parts are mounted on the end piece 30 of the injection device 14 and are also intended to be received in the housing 18. These parts comprise a spring 44, a ring 46 and a ring 48, which are coaxial and therefore aligned on axis A.
  • the spring 44 comprises at least one metal coil which surrounds the body of the nozzle and is mounted between the flange 38 and the ring 46.
  • the spring 44 comprises a first end bearing in the circumferential direction 38 on the flange and a second end taking support in the circumferential direction on the ring 46.
  • the first end of the spring 44 here comprises an axial finger 44a passing through an orifice of the flange 38 and its second end comprises a radial finger 44b cooperating with the ring 46.
  • This radial finger 44b can have its radially outer end 44c bent in the circumferential direction, to have a shape substantially in L ( figure 4 ).
  • the ring 46 is here formed in one piece, for example in plastic material. It surrounds the body of the end piece 30 and is held axially on the latter by means of the ring 48, which is a split locking ring intended to be mounted in the groove 42 of the body of the end piece 30.
  • the ring 46 is rotatably mounted on the body of the nozzle 30, about the axis A. It is guided in rotation by the two walls 28b of the housing.
  • the ring 46 comprises two cylindrical inner walls 46a and 46b respectively, extending around each other.
  • the inner wall 46a is slidably mounted on the body of the nozzle 30.
  • the upper peripheral edge of the outer wall 46b located on the side opposite the housing 20, comprises a tongue 60 projecting parallel to the axis A.
  • This tongue 60 is intended to be engaged in the notch 40 of the flange 38 and to cooperate by abutment with the circumferential ends of this notch 40 to define the angular displacement stroke of the ring 46 vis-à-vis the tip 30 around the axis A.
  • the radial finger 44b of the spring 44 bears circumferentially on the tongue 60 to urge it into position. circumferential direction towards a circumferential end of the notch 40.
  • the folded end of the finger 44 can extend around the tongue 60 and can be used to pinch the tongue and thus ensure a solidarization of these two elements.
  • the spring 44 can be mounted prestressed in the circumferential direction between the end piece 30 and the ring 48.
  • the outer wall 46b of the ring 46 further comprises a finger 62 extending radially outwardly with respect to the axis A.
  • This finger 62 is intended to pass through a slot 64 of one of the half-shells of the housing 12 ( Figures 1 and 2 ).
  • the outer radial end of the finger 62 is free and intended to be accessible by a user to be moved in the slot 64, which has an elongated shape and extends around the axis A.
  • the light 64 extends over a angle angular sector substantially equivalent to that of the notch 40.
  • the ring 46 can be moved from a first position in which the tongue 60 and the finger 62 are located respectively in first circumferential ends of the notch 40 and the light 64 (FIG. figure 5a ) to a second position in which the tongue 60 and the finger 62 are respectively located in opposite second circumferential ends of the notch 40 and the light 64 (FIG. figure 5d ).
  • the first position is a rest position in which the spring 44 holds the tongue 60 in the aforementioned position
  • the second position is a position imposed by the user by applying a force on the finger 62, opposing the force of recall of the spring.
  • the lower peripheral edge of the outer wall 46b, located on the side of the housing 20, comprises arrangements or recesses defining cam surfaces 66, here three in number.
  • the cam surfaces 66 are regularly distributed around the axis A. They are at least partly oriented around the axis A. In other words, the intersection between a first plane containing a cam surface and a second plane perpendicular to the axis A passing through this cam surface substantially forms a radius of the axis A.
  • each cam surface 66 has a height or longitudinal dimension along the axis, which represents 10 to 50% of that of the outer wall 46b or the ring 46. Its length or circumferential dimension around the axis extends over an angular sector of between 2 and 10 ° approximately.
  • Each cam surface 66 is connected at one end to the lower peripheral edge of the wall 46b, and at an end opposite one end of a circumferential edge 68 whose opposite end is connected to an axial edge 70 of connection to the peripheral edge lower wall 46b.
  • the angular sector extending between the axial edge 70 and the end of the cam surface 66, opposite this axial edge, has an angle which is smaller than that of the notch 40 and the slot 64.
  • the ring 46 Between its walls 46a, 46b, the ring 46 comprises hooks 72 circumferentially oriented vis-à-vis the axis A.
  • the hooks 72 are regularly distributed around the axis A. It is understood that the hooks 72 are located on a circumference C2 different from the circumference C1 passing through the cam surfaces 66, C2 having a radius less than C1.
  • the fuel cartridge 16 will now be described.
  • the cartridge 16 comprises a body 74, here substantially cylindrical, comprising an internal fuel storage cavity, and the aforementioned connection and fuel dispensing tip, which is configured to cooperate by interlocking with the tip 30 of the device 14 and which is not visible in the drawings.
  • the body 74 is configured to be engaged, here in part, in the housing 20 of the housing 12 and to be disengaged, by translation along the axis A which is the longitudinal axis of the body when the cartridge is aligned with the axis A, as shown in FIG. figure 1 .
  • Cartridge 16 further carries a ring 76 around its connection tip.
  • This ring 76 is here formed in one piece, for example in plastic material, and can be mounted in force on the body 74.
  • the cartridge 16 equipped with the ring 76 may represent a consumable of the tool 10.
  • the ring 76 comprises a cylindrical wall 76a of axis A and a radial annular wall 76b which here bears axially on an outer peripheral edge of the upper end of the body 74 of the cartridge ( figure 4 ).
  • the radial wall 76b comprises a flat or tongue 78 projecting radially, which is substantially complementary to the notch 24 of the opening 22 of the housing.
  • the tongue 78 and the notch 24 form indexing means to ensure correct angular positioning of the cartridge 16 about the axis A during its insertion into the housing 20. It is understood that this tongue 78 is intended to cooperate with the stiffeners 26b and the front side wall 28a of the housing for guiding the translation of the cartridge along the axis A in the housing 20.
  • the cylindrical wall 76a is intended to cooperate by axial and circumferential sliding with the inner wall 46b of the ring. It is intended to extend around the wall 46b, between the latter and the hooks of the ring 46.
  • the ring 76 comprises studs protruding on the upper surface of its wall 76b, which define the cam surfaces 80, here three in number.
  • the cam surfaces 80 are evenly distributed around the axis A. They are at least partially oriented around the axis A. In other words, the intersection between a first plane containing a cam surface and a second plane perpendicular to the axis A passing through this cam surface substantially forms a radius of the axis A.
  • each cam surface 80 has a height or longitudinal dimension substantially identical to that of the cam surfaces 66. Its length or circumferential dimension about the axis is substantially identical to that of the cam surfaces 66.
  • the ring 76 comprises hooks 82 circumferentially oriented with respect to the axis A.
  • the hooks 82 are regularly distributed around the axis A and are intended to cooperate with the hooks 72 of the ring 46. It is understood that the hooks 82 are located on a circumference C2 different from the circumference C1 passing through the cam surfaces 80 , C2 having a radius less than C1.
  • Each hook 82 here has a general L shape and comprises an axial portion connected to a circumferential portion. This circumferential portion comprises an upper cam surface 82a for cooperating with a lower cam surface of a hook 72, which may also be generally L-shaped.
  • the mounting or insertion of the cartridge 16 in the housing 20 can be performed in the following manner.
  • the cartridge 16 is presented at the inlet of the housing 20, that is to say in front of the opening 22, and aligned with the axis A as shown in FIG. figure 1 its upper end comprising the connecting end and the ring 76 being intended to be inserted first into the housing 20.
  • the tongue 78 indexing cooperates with the notch 24 to correctly position the cartridge 16 vis-à-vis the entrance of the housing 20.
  • the cartridge 16 is moved in translation along the axis A until its tip engages in the tip 30 of the injection device 14. In this nested position, a lower end portion of the cartridge 16 remains on the outside of the case as shown at figure 2 , to facilitate its withdrawal with a view for example of its replacement.
  • the cam surfaces of the hooks 72, 82 cooperate together so that the insertion force applied by a user to the cartridge generates a rotation of the ring 46 about the axis A.
  • the studs of the ring 76 move in the arrangements of the ring 46 and pass for example from the position shown in FIG. figure 5a at the position shown in figure 5b .
  • the spring 44 then ensures an elastic return of the ring 46 in its rest position, which ensures the engagement of the hooks 72 of the ring in those 82 of the ring.
  • the studs of the ring 76 move in the arrangements of the ring 46 and pass for example from the position shown in FIG. figure 5b at the position shown in figure 5a .
  • the cartridge 16 is then locked and the tool 10 can be used.
  • Disassembly or disengagement of the cartridge 16 from the housing 20 can be achieved in the following manner.
  • the user applies a force on the finger 62 to move it from its rest position shown in FIG. figure 2 at its opposite position represented in the figure 1 .
  • the rotation of the finger 62 is done in several sub-steps which are illustrated by the Figures 5a to 5e .
  • the figure 5a represent the cartridge 16 and the ring 46 in the operating position.
  • the studs of the ring 76 are located in the arrangements of the ring 46 and are at circumferential distance from the cam surfaces of the ring 46.
  • the figure 5b represents the case where the finger 62 has been moved over part of its travel in the housing lumen, until the cam surfaces 66, 80 are in contact with one another or in the immediate vicinity of each other . This movement allows the hooks 72, 82 to disengage from each other, thus unlocking the cartridge 16.
  • the figure 5c represents the case where the finger 62 is further moved in the slot 64.
  • the cam surfaces 66, 80 cooperate with each other so that the rotation of the ring 46 causes a translation of the cartridge 16 along the axis A and the disengagement tips.
  • the figure 5d represents the case where the finger 62 has reached the end of the stroke in the light 64.
  • the cam surfaces 66, 80 have finished cooperating together and the end pieces are disengaged from one another.
  • the cartridge 16 can then be manually removed without difficulty by the user, by translation along the axis A ( figure 5e ).
  • the ring (mobile) could be carried by the cartridge and the ring (fixed) could be carried by the housing of the tool.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Cartouche (16) de combustible pour un outil (10) de fixation à gaz, comportant un corps (74) comprenant une cavité interne de stockage de combustible, ledit corps étant configuré pour être engagé au moins en partie dans un logement (20) dudit outil et pour en être désengagé, par translation le long d'un axe longitudinal (A) dudit corps, ladite cartouche comportant entre outre un embout de connexion et de distribution de combustible configuré pour coopérer avec un moyen (30) complémentaire dudit outil lors l'engagement précité dudit corps, caractérisée en ce que ladite cartouche comprend des moyens (76) pour faciliter son désengagement dudit logement, lesdits moyens comportant au moins une première surface de came (80) qui s'étend au moins en partie autour dudit axe.

Figure imgaf001
A fuel cartridge (16) for a gas attachment tool (10), comprising a body (74) including an internal fuel storage cavity, said body being configured to be engaged at least in part in a housing (20) of said fuel tool and to be disengaged, by translation along a longitudinal axis (A) of said body, said cartridge further comprising a fuel connection and distribution nozzle configured to cooperate with a means (30) complementary to said tool when the abovementioned engagement of said body, characterized in that said cartridge comprises means (76) for facilitating its disengagement from said housing, said means comprising at least a first cam surface (80) which extends at least partly around said axis.
Figure imgaf001

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention concerne une cartouche de combustible pour un outil de fixation à gaz ainsi qu'un outil de fixation à gaz comportant une telle cartouche.The invention relates to a fuel cartridge for a gas fastening tool and a gas fastening tool comprising such a cartridge.

ETAT DE L'ARTSTATE OF THE ART

Les outils de scellement ou de fixation, dits à gaz, sont des outils comprenant un moteur à combustion interne fonctionnant par la mise à feu dans une chambre de combustion d'un mélange air-combustible, le combustible étant injecté dans la chambre par un dispositif d'injection depuis une cartouche de combustible. De tels outils sont destinés à entraîner des éléments de fixation dans des matériaux supports pour y fixer des pièces. Les cloueurs à gaz sont aujourd'hui très répandus. Comme combustible pour moteur à combustion interne, on peut citer par exemple l'essence, l'alcool, sous forme liquide et/ou gaz.Sealing or fixing tools, called gas tools, are tools comprising an internal combustion engine operating by firing a fuel-air mixture in a combustion chamber, the fuel being injected into the chamber by a device injection from a fuel cartridge. Such tools are intended to drive fasteners in support materials to attach parts. Gas nailers are now widespread. As fuel for an internal combustion engine, there may be mentioned for example gasoline, alcohol, in liquid form and / or gas.

En général, un tel outil est portatif et comprend un boîtier dans lequel est monté le moteur à combustion interne de propulsion d'un piston d'entraînement d'un élément de fixation. Un tel outil peut comporter également une batterie d'alimentation électrique ainsi qu'une poignée de préhension, de manipulation et de tir sur laquelle est montée une détente d'actionnement de l'outil.In general, such a tool is portable and comprises a housing in which is mounted the propulsion internal combustion engine of a driving piston of a fastener. Such a tool may also include a battery power supply and a handle, handling and shooting on which is mounted a detent actuating the tool.

Un cycle de tir comprend plusieurs étapes telles que la distribution d'une quantité de combustible par la cartouche, l'admission du combustible dans la chambre, le mélange du combustible avec de l'air dans la chambre, l'allumage et la combustion du mélange pour l'entraînement du piston, et l'évacuation des gaz de combustion de la chambre.A firing cycle includes several steps such as dispensing a quantity of fuel through the cartridge, admitting the fuel into the chamber, mixing the fuel with air in the chamber, igniting and combusting the fuel. mixing for driving the piston, and evacuation of combustion gases from the chamber.

Une cartouche de combustible comprend classiquement un corps comprenant une cavité interne de stockage de combustible, et un embout de connexion et de distribution de combustible configuré pour coopérer par emboîtement avec le dispositif d'injection précité.A fuel cartridge conventionally comprises a body including an internal fuel storage cavity, and a fuel nozzle. fuel connection and distribution configured to cooperate by interlocking with the aforementioned injection device.

Le corps est en général configuré pour être engagé au moins en partie dans un logement de l'outil et pour en être désengagé, par translation le long d'un axe longitudinal du corps.The body is generally configured to be engaged at least partly in a housing of the tool and to be disengaged, by translation along a longitudinal axis of the body.

La présente invention propose un perfectionnement à cette technologie.The present invention provides an improvement to this technology.

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention propose ainsi une cartouche de combustible pour un outil de fixation à gaz, comportant un corps comprenant une cavité interne de stockage de combustible, ledit corps étant configuré pour être engagé au moins en partie dans un logement dudit outil et pour en être désengagé, par translation le long d'un axe longitudinal dudit corps, ladite cartouche comportant entre outre un embout de connexion et de distribution de combustible configuré pour coopérer avec un moyen complémentaire dudit outil lors de l'engagement précité dudit corps, caractérisée en ce que ladite cartouche comprend des moyens pour faciliter son désengagement dudit logement, lesdits moyens comportant au moins une première surface de came qui s'étend au moins en partie autour dudit axe.The invention thus proposes a fuel cartridge for a gas fixation tool, comprising a body comprising an internal fuel storage cavity, said body being configured to be engaged at least partly in a housing of said tool and to be disengaged therefrom. , by translation along a longitudinal axis of said body, said cartridge further comprising a fuel connection and distribution nozzle configured to cooperate with a complementary means of said tool during said engagement of said body, characterized in that said cartridge comprises means for facilitating its disengagement from said housing, said means comprising at least a first cam surface which extends at least partly around said axis.

L'invention propose ainsi de faciliter le retrait de la cartouche par des premiers moyens, à savoir au moins une première surface de came, prévus sur la cartouche. Cette ou chaque surface de came s'étend au moins en partie autour de l'axe longitudinal du corps de la cartouche c'est-à-dire que sa pente est au moins en partie orientée autour de cet axe. De préférence, l'intersection entre un premier plan contenant ladite surface de came et par un second plan perpendiculaire à l'axe longitudinal précité et passant par cette surface de came, forme sensiblement un rayon de cet axe longitudinal.The invention thus proposes to facilitate removal of the cartridge by first means, namely at least a first cam surface, provided on the cartridge. This or each cam surface extends at least partly around the longitudinal axis of the body of the cartridge, that is to say that its slope is at least partly oriented about this axis. Preferably, the intersection between a first plane containing said cam surface and a second plane perpendicular to said longitudinal axis and passing through said cam surface substantially forms a radius of said longitudinal axis.

La cartouche selon l'invention peut comprendre une ou plusieurs des caractéristiques suivantes, prises isolément les unes des autres ou en combinaison les unes avec les autres :

  • ladite au moins une surface de came est située sur une couronne montée sur la cartouche et s'étendant au moins en partie autour dudit embout,
  • ladite couronne comprend deux ou trois surfaces de came régulièrement réparties autour dudit axe et orientées dans la même direction autour de cet axe,
  • lesdites surfaces de came sont situées sur une première circonférence centrée sur ledit axe,
  • ladite couronne comprend au moins un crochet, et de préférence deux ou trois crochets régulièrement répartis autour dudit axe, configuré pour coopérer avec un moyen complémentaire dudit outil,
  • ledit crochet ou lesdits crochets sont situés sur une seconde circonférence centrée sur ledit axe, différente de ladite première circonférence,
  • ladite couronne comprend un bord périphérique comportant un méplat d'indexage ou comportant une languette radialement externe d'indexage,
  • ladite couronne est formée d'une seule pièce, par exemple en matériau plastique, et est montée, par exemple en force, sur ledit corps,
The cartridge according to the invention may comprise one or more of the following characteristics, taken separately from each other or in combination with each other:
  • said at least one cam surface is located on a ring gear mounted on the cartridge and extending at least partly around said tip,
  • said ring comprises two or three cam surfaces regularly distributed around said axis and oriented in the same direction about this axis,
  • said cam surfaces are located on a first circumference centered on said axis,
  • said ring comprises at least one hook, and preferably two or three hooks regularly distributed around said axis, configured to cooperate with means complementary to said tool,
  • said hook or said hooks are located on a second circumference centered on said axis, different from said first circumference,
  • said ring comprises a peripheral edge comprising an indexing flat or having a radially external indexing tongue,
  • said ring is formed in one piece, for example in plastic material, and is mounted, for example in force, on said body,

La présente invention concerne encore un outil de fixation à gaz, comportant un boîtier présentant un logement configuré pour recevoir une cartouche de combustible tel que décrite ci-dessus, ledit outil comportant en outre au moins une seconde surface de came configurée pour coopérer avec ladite première surface de came et s'étendant au moins en partie autour d'un axe longitudinal dudit logement.The present invention also relates to a gas fastening tool, comprising a housing having a housing configured to receive a fuel cartridge as described above, said tool further comprising at least a second cam surface configured to cooperate with said first cam surface and extending at least in part about a longitudinal axis of said housing.

L'outil selon l'invention peut comprendre une ou plusieurs des caractéristiques suivantes, prises isolément les unes des autres ou en combinaison les unes avec les autres :

  • l'outil comprend une bague portant ladite au moins une seconde surface de came et mobile en rotation autour dudit axe,
  • ladite bague est montée mobile en rotation vis-à-vis vis d'un organe d'injection de combustible, ledit organe comportant un moyen complémentaire dudit embout de la cartouche,
  • ladite bague est montée mobile en rotation vis-à-vis dudit boîtier et comprend un doigt radialement externe traversant une lumière dudit boîtier, une extrémité libre dudit doigt étant configurée pour être située à l'extérieur dudit boîtier et accessible par un utilisateur en vue d'un désengagement de ladite cartouche par rotation de la bague dans la lumière,
  • ladite bague comprend deux ou trois secondes surfaces de came régulièrement réparties autour dudit axe et orientées dans la même direction autour de cet axe,
  • lesdites secondes surfaces de came sont situées sur une première circonférence centrée sur ledit axe,
  • ladite bague comprend au moins un crochet, et de préférence deux ou trois crochets régulièrement répartis autour dudit axe, configuré pour coopérer avec un moyen complémentaire de ladite cartouche,
  • ledit crochet ou lesdits crochets sont situés sur une seconde circonférence centrée sur ledit axe, différente de ladite première circonférence,
  • ledit boîtier comprend à l'intérieur dudit logement des moyens d'indexage et/ou de guidage configurés pour coopérer avec un moyen complémentaire de ladite cartouche, et
  • ladite bague est formée d'une seule pièce, par exemple en matériau plastique.
The tool according to the invention may comprise one or more of the following features, taken separately from each other or in combination with each other:
  • the tool comprises a ring carrying said at least one second cam surface and movable in rotation about said axis,
  • said ring is rotatably mounted vis-à-vis a fuel injection member, said member comprising a means complementary to said tip of the cartridge,
  • said ring is rotatably mounted with respect to said housing and comprises a radially outer finger passing through a slot of said casing, a free end of said finger being configured to be located outside said casing and accessible by a user in order to disengaging said cartridge by rotating the ring in the light,
  • said ring comprises two or three second cam surfaces regularly distributed about said axis and oriented in the same direction about this axis,
  • said second cam surfaces are located on a first circumference centered on said axis,
  • said ring comprises at least one hook, and preferably two or three hooks regularly distributed around said axis, configured to cooperate with means complementary to said cartridge,
  • said hook or said hooks are located on a second circumference centered on said axis, different from said first circumference,
  • said housing comprises inside said housing indexing and / or guiding means configured to cooperate with means complementary to said cartridge, and
  • said ring is formed in one piece, for example of plastic material.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera mieux comprise et d'autres détails, caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description qui suit, faite à titre d'exemple non limitatif et en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une vue schématique en perspective d'une partie d'un outil de fixation à gaz et illustre une étape d'insertion ou de retrait d'une cartouche de combustible dans un logement de l'outil,
  • la figure 2 est une autre vue schématique en perspective de la partie d'outil de la figure 1, la cartouche de combustible étant inséré dans le logement de l'outil,
  • la figure 3 est une vue schématique en perspective éclatée de la partie d'outil de la figure 1,
  • la figure 4 est une vue à plus grande échelle d'une partie de la figure 3, et
  • les figures 5a à 5e sont des vues schématiques en perspective de la partie d'outil de la figure 1, avec arrachement partiel d'un boîtier de l'outil, et illustrent des étapes de désengagement de la cartouche de combustible du logement de ce boîtier.
The invention will be better understood and other details, characteristics and advantages of the present invention will appear more clearly on reading the description which follows, given by way of non-limiting example and with reference to the accompanying drawings, in which:
  • the figure 1 is a schematic perspective view of a portion of a gas attachment tool and illustrates a step of inserting or removing a fuel cartridge in a housing of the tool,
  • the figure 2 is another schematic perspective view of the tool part of the figure 1 the fuel cartridge being inserted into the housing of the tool,
  • the figure 3 is a schematic perspective exploded view of the tool part of the figure 1 ,
  • the figure 4 is a larger-scale view of some of the figure 3 , and
  • the Figures 5a to 5e are schematic perspective views of the tool part of the figure 1 , with partial removal of a housing of the tool, and illustrate steps of disengagement of the fuel cartridge from the housing of this housing.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

Dans la description qui suit, les termes avant, arrière, inférieur, supérieur, axial, radial, etc., font référence à la position d'un élément par rapport à un axe et/ou par rapport aux conditions normales d'utilisation de l'outil.In the following description, the terms front, rear, bottom, top, axial, radial, etc., refer to the position of an element with respect to an axis and / or with respect to the normal conditions of use of the element. 'tool.

L'outil de fixation 10 est partiellement représenté dans les dessins. Cet outil comporte un boîtier 12 dans lequel se trouve un moteur à combustion interne avec une chambre de combustion (ou une chambre de précombustion et une chambre de combustion) destinée à contenir un mélange d'air et de combustible dont la mise à feu provoque la propulsion d'un piston prévu pour entraîner un élément de fixation extrait d'un magasin d'alimentation, l'élément de fixation étant destiné à s'ancrer dans un matériau support, à la sortie d'un guide-pointe s'étendant à l'avant du boîtier. Tous ces composants des outils de fixation à gaz sont parfaitement connus de l'homme du métier et ils n'ont donc pas tous été représentés dans les dessins.The attachment tool 10 is partially shown in the drawings. This tool comprises a housing 12 in which there is an internal combustion engine with a combustion chamber (or a pre-combustion chamber and a combustion chamber) intended to contain a mixture of air and fuel whose ignition causes the propulsion of a piston intended to drive a fastener extracted from a feed magazine, the fastener being intended to be anchored in a support material, at the exit of a guide-tip extending to the front of the case. All these components of gas fastening tools are well known to those skilled in the art and therefore they have not all been represented in the drawings.

L'alimentation en combustible de la chambre de combustion du moteur s'effectue, par l'intermédiaire d'un organe d'injection 14, à partir d'une cartouche de gaz combustible 16 (figures 1 à 3).The fuel supply of the combustion chamber of the engine is effected, via an injection member 14, from a fuel gas cartridge 16 ( Figures 1 to 3 ).

Le boîtier 12 de l'outil comprend une poignée de préhension et de manipulation de l'outil. La poignée sert également au tir, par une détente d'actionnement montée sur elle. La partie du boîtier 12 représentée dans les dessins peut s'étendre sensiblement parallèlement à la poignée de l'outil, et en aval de celle-ci lors de l'utilisation de l'outil.The housing 12 of the tool comprises a handle for gripping and handling the tool. The handle is also used for shooting, by an actuation trigger mounted on it. The portion of the housing 12 shown in the drawings may extend substantially parallel to the handle of the tool, and downstream thereof when using the tool.

Dans l'exemple représenté, la partie représentée du boîtier 12 comprend deux demi-coques qui sont fixées ensemble par des vis par exemple. Les deux demi-coques définissent entre elles un premier logement 18 de réception du dispositif d'injection 14 et un second logement 20 de réception de la cartouche 16 et plus exactement d'une partie de celle-ci.In the example shown, the illustrated portion of the housing 12 comprises two half-shells which are fastened together by screws for example. The two half-shells define between them a first housing 18 for receiving the injection device 14 and a second housing 20 for receiving the cartridge 16 and more exactly a part thereof.

La partie visible du boîtier 12 a une forme allongée et les logements 18, 20 sont disposés l'un derrière l'autre le long de l'axe longitudinal A du boîtier. Le logement 18 est sensiblement situé au milieu du boîtier 12 et le logement 20 s'étend entre le logement 18 et une extrémité longitudinale du boîtier 12.The visible part of the housing 12 has an elongated shape and the housings 18, 20 are arranged one behind the other along the longitudinal axis A of the housing. The housing 18 is substantially located in the middle of the housing 12 and the housing 20 extends between the housing 18 and a longitudinal end of the housing 12.

Le logement 20 a une forme allongée d'axe A et comprend une extrémité longitudinale qui communique avec le logement 18 et une extrémité longitudinale opposée qui débouche sur l'extrémité longitudinale précitée du boîtier, pour former une ouverture 22 de montage/démontage de la cartouche dans le logement 20.The housing 20 has an elongated shape of axis A and comprises a longitudinal end which communicates with the housing 18 and an opposite longitudinal end which opens on the aforementioned longitudinal end of the housing, to form an opening 22 for mounting / dismounting the cartridge. in dwelling 20.

Comme on le voit mieux à la figure 1, l'ouverture 22 a globalement une forme circulaire ou ovoïde et présente une encoche 24, orientée sensiblement radialement par rapport à l'axe A. Cette encoche 24 a une forme générale rectangulaire.As we see best at the figure 1 , the opening 22 generally has a circular or ovoid shape and has a notch 24, oriented substantially radially relative to the axis A. This notch 24 has a generally rectangular shape.

Chaque demi-coque comprend sur sa surface interne des raidisseurs 26 et des parois internes 28 (figure 3).Each half-shell comprises on its inner surface stiffeners 26 and internal walls 28 ( figure 3 ).

Le logement 20 est délimité par des parois internes 28a latérales sensiblement parallèles à l'axe A et par deux parois internes 28b supérieures sensiblement perpendiculaire à l'axe A. Des premiers raidisseurs 26a s'étendent entre les parois 28a, sensiblement perpendiculairement à l'axe A, et des seconds raidisseurs 26b s'étendent entre les parois 28a, sensiblement parallèlement à l'axe A. Les raidisseurs 26a, 26b sont conformés pour s'étendre dans le logement 20 dans la continuité de la section de passage définie par l'ouverture 22. Ainsi, la section de passage définie par les raidisseurs 26a, 26b des demi-coques est sensiblement identique à celle définie par l'ouverture 22. On comprend ainsi que des raidisseurs 26b s'étendent dans le prolongement des bords latéraux de l'encoche 24. Une des parois 28a s'étend dans le prolongement du bord avant de l'encoche. Les raidisseurs 26b voire les parois 28a forment des moyens de guidage de la cartouche lors de son montage/démontage, comme cela sera décrit plus en détail dans ce qui suit.The housing 20 is delimited by internal inner walls 28a substantially parallel to the axis A and by two inner walls 28b upper substantially perpendicular to the axis A. The first stiffeners 26a extend between the walls 28a, substantially perpendicular to the axis A, and second stiffeners 26b extend between the walls 28a, substantially parallel to the axis A. The stiffeners 26a, 26b are shaped to extend in the housing 20 in the continuity of the passage section defined by the Thus, the passage section defined by the stiffeners 26a, 26b of the half-shells is substantially identical to that defined by the opening 22. It is thus understood that the stiffeners 26b extend in the extension of the lateral edges of the 24. One of the walls 28a extends in the extension of the front edge of the notch. The stiffeners 26b or the walls 28a form guide means of the cartridge during its assembly / disassembly, as will be described in more detail in the following.

Les parois 28b sont parallèles et espacées l'une de l'autre.The walls 28b are parallel and spaced apart from each other.

Le logement 18 est délimité par des parois internes dans l'exemple représenté, dont les parois 28b, une paroi arrière 28c sensiblement parallèle à l'axe A et une paroi 28d supérieure sensiblement perpendiculaire à l'axe A. Les parois 28b, 28c et 28d des demi-coques comprennent des orifices de montage de parties du dispositif d'injection 14 et de la cartouche 16.The housing 18 is delimited by internal walls in the example shown, whose walls 28b, a rear wall 28c substantially parallel to the axis A and a wall 28d upper substantially perpendicular to the axis A. The walls 28b, 28c and 28d of the half-shells comprise orifices for mounting parts of the injection device 14 and the cartridge 16.

Le dispositif d'injection 14 comprend un embout 30, ici du type femelle, de connexion par emboîtement à un embout, donc du type mâle, de la cartouche 16, qui n'est pas visible dans les dessins.The injection device 14 comprises a tip 30, here of the female type, connection by interlocking to a tip, so the male type, the cartridge 16, which is not visible in the drawings.

L'embout 30 est logé avec d'autres éléments du dispositif 14 dans le logement 18 et est relié à une conduite 32 d'alimentation de la chambre de combustion de l'outil. Cette conduite 32 a une forme générale en S et comprend une portion allongée rectiligne qui est logée entre les parois arrière 28a et des parois externes 34 des demi-coques. L'extrémité de la conduite 32, opposée à l'embout 30, est reliée à un organe 36 de raccordement à la chambre de combustion. Cet organe 36 est monté dans un orifice des parois externes 34 du boîtier. Les éléments précités du dispositif 14 sont en outre montés et calés dans les orifices précités des parois 28c et 28d.The tip 30 is housed with other elements of the device 14 in the housing 18 and is connected to a pipe 32 for supplying the combustion chamber of the tool. This pipe 32 is generally S-shaped and comprises a rectilinear elongated portion which is housed between the rear walls 28a and outer walls 34 of the half-shells. The end of the pipe 32, opposite the nozzle 30, is connected to a member 36 for connection to the combustion chamber. This member 36 is mounted in an orifice of the outer walls 34 of the housing. The aforementioned elements of the device 14 are further mounted and wedged in the aforementioned orifices of the walls 28c and 28d.

L'embout 30, mieux visible à la figure 4, comprend un corps cylindrique comportant un alésage interne d'engagement de l'embout de la cartouche 16. L'extrémité inférieure du corps de l'embout, situé du côté du logement 20, est libre pour coopérer avec la cartouche, et son extrémité opposée est reliée à une collerette annulaire externe 38.The tip 30, better visible at the figure 4 , comprises a cylindrical body having an internal bore engaging the tip of the cartridge 16. The lower end of the body of the nozzle, located on the side of the housing 20, is free to cooperate with the cartridge, and its end opposite is connected to an outer annular flange 38.

La collerette 38 comprend à sa périphérie externe une encoche 40 qui s'étend sur un secteur angulaire d'angle prédéterminé autour de l'axe A. L'extrémité libre précitée du corps de l'embout comprend une rainure annulaire externe 42.The flange 38 comprises at its outer periphery a notch 40 which extends over an angular sector of predetermined angle around the axis A. The aforementioned free end of the body of the nozzle comprises an outer annular groove 42.

Comme cela est visible à la figure 4, trois pièces sont montées sur l'embout 30 du dispositif d'injection 14 et sont également destinées à être reçues dans le logement 18. Ces pièces comprennent un ressort 44, une bague 46 et un anneau 48, qui sont coaxiaux et donc alignés sur l'axe A.As can be seen in figure 4 three parts are mounted on the end piece 30 of the injection device 14 and are also intended to be received in the housing 18. These parts comprise a spring 44, a ring 46 and a ring 48, which are coaxial and therefore aligned on axis A.

Le ressort 44 comprend au moins une spire métallique qui entoure le corps de l'embout et est monté entre la collerette 38 et la bague 46. Le ressort 44 comprend une première extrémité prenant appui en direction circonférentielle 38 sur la collerette et une seconde extrémité prenant appui en direction circonférentielle sur la bague 46. La première extrémité du ressort 44 comprend ici un doigt axial 44a traversant un orifice de la collerette 38 et sa seconde extrémité comprend un doigt radial 44b coopérant avec la bague 46. Ce doigt radial 44b peut avoir son extrémité radiale externe 44c pliée en direction circonférentielle, pour avoir une forme sensiblement en L (figure 4).The spring 44 comprises at least one metal coil which surrounds the body of the nozzle and is mounted between the flange 38 and the ring 46. The spring 44 comprises a first end bearing in the circumferential direction 38 on the flange and a second end taking support in the circumferential direction on the ring 46. The first end of the spring 44 here comprises an axial finger 44a passing through an orifice of the flange 38 and its second end comprises a radial finger 44b cooperating with the ring 46. This radial finger 44b can have its radially outer end 44c bent in the circumferential direction, to have a shape substantially in L ( figure 4 ).

La bague 46 est ici formée d'une seule pièce, par exemple en matériau plastique. Elle entoure le corps de l'embout 30 et est maintenue axialement sur ce dernier par l'intermédiaire de l'anneau 48, qui est un anneau fendu de verrouillage destiné à être monté dans la rainure 42 du corps de l'embout 30.The ring 46 is here formed in one piece, for example in plastic material. It surrounds the body of the end piece 30 and is held axially on the latter by means of the ring 48, which is a split locking ring intended to be mounted in the groove 42 of the body of the end piece 30.

La bague 46 est montée mobile en rotation sur le corps de l'embout 30, autour de l'axe A. Elle est guidée en rotation par les deux parois 28b du boîtier.The ring 46 is rotatably mounted on the body of the nozzle 30, about the axis A. It is guided in rotation by the two walls 28b of the housing.

Dans l'exemple représenté, la bague 46 comprend deux parois cylindriques respectivement interne 46a et externe 46b, s'étendant l'une autour de l'autre.In the example shown, the ring 46 comprises two cylindrical inner walls 46a and 46b respectively, extending around each other.

La paroi interne 46a est montée glissante sur le corps de l'embout 30. Le bord périphérique supérieur de la paroi externe 46b, situé du côté opposé au logement 20, comprend une languette 60 en saillie parallèle à l'axe A. Cette languette 60 est destinée à être engagée dans l'encoche 40 de la collerette 38 et à coopérer par butée avec les extrémités circonférentielles de cette encoche 40 pour définir la course de débattement angulaire de la bague 46 vis-à-vis de l'embout 30 autour de l'axe A. Le doigt radial 44b du ressort 44 prend appui circonférentiellement sur cette languette 60 pour la solliciter en direction circonférentielle vers une extrémité circonférentielle de l'encoche 40. L'extrémité pliée du doigt 44 peut s'étendre autour de la languette 60 et peut être utilisé pour pincer la languette et ainsi assurer une solidarisation de ces deux éléments. Le ressort 44 peut être monté précontraint en direction circonférentielle entre l'embout 30 et la bague 48.The inner wall 46a is slidably mounted on the body of the nozzle 30. The upper peripheral edge of the outer wall 46b, located on the side opposite the housing 20, comprises a tongue 60 projecting parallel to the axis A. This tongue 60 is intended to be engaged in the notch 40 of the flange 38 and to cooperate by abutment with the circumferential ends of this notch 40 to define the angular displacement stroke of the ring 46 vis-à-vis the tip 30 around the axis A. The radial finger 44b of the spring 44 bears circumferentially on the tongue 60 to urge it into position. circumferential direction towards a circumferential end of the notch 40. The folded end of the finger 44 can extend around the tongue 60 and can be used to pinch the tongue and thus ensure a solidarization of these two elements. The spring 44 can be mounted prestressed in the circumferential direction between the end piece 30 and the ring 48.

La paroi externe 46b de la bague 46 comprend en outre un doigt 62 s'étendant radialement vers l'extérieur par rapport à l'axe A. Ce doigt 62 est destiné à traverser une lumière 64 d'une des demi-coques du boîtier 12 (figures 1 et 2). L'extrémité radiale externe du doigt 62 est libre et destinée à être accessible par un utilisateur pour être déplacé dans la lumière 64, qui a une forme allongée et s'étend autour de l'axe A. La lumière 64 s'étend sur un secteur angulaire d'angle sensiblement équivalent à celui de l'encoche 40.The outer wall 46b of the ring 46 further comprises a finger 62 extending radially outwardly with respect to the axis A. This finger 62 is intended to pass through a slot 64 of one of the half-shells of the housing 12 ( Figures 1 and 2 ). The outer radial end of the finger 62 is free and intended to be accessible by a user to be moved in the slot 64, which has an elongated shape and extends around the axis A. The light 64 extends over a angle angular sector substantially equivalent to that of the notch 40.

On comprend ainsi que le déplacement du doigt 62 dans la lumière va entraîner le déplacement en rotation de la bague 46 autour de l'embout 30, et de la languette 60 dans l'encoche 40. La bague 46 est déplaçable depuis une première position dans laquelle la languette 60 et le doigt 62 sont situés respectivement dans des premières extrémités circonférentielles de l'encoche 40 et de la lumière 64 (figure 5a), jusqu'à une seconde position dans laquelle la languette 60 et le doigt 62 sont situés respectivement dans des secondes extrémités circonférentielles opposées de l'encoche 40 et de la lumière 64 (figure 5d). La première position est une position de repos dans laquelle le ressort 44 maintient la languette 60 dans la position précitée, et la seconde position est une position imposée par l'utilisateur en appliquant une force sur le doigt 62, s'opposant à la force de rappel du ressort.It will thus be understood that the displacement of the finger 62 in the lumen will cause the ring 46 to move in rotation around the tip 30 and the tongue 60 in the notch 40. The ring 46 can be moved from a first position in which the tongue 60 and the finger 62 are located respectively in first circumferential ends of the notch 40 and the light 64 (FIG. figure 5a ) to a second position in which the tongue 60 and the finger 62 are respectively located in opposite second circumferential ends of the notch 40 and the light 64 (FIG. figure 5d ). The first position is a rest position in which the spring 44 holds the tongue 60 in the aforementioned position, and the second position is a position imposed by the user by applying a force on the finger 62, opposing the force of recall of the spring.

Le bord périphérique inférieur de la paroi externe 46b, situé du côté du logement 20, comprend des aménagements ou évidements définissant des surfaces de came 66, ici au nombre de trois. Les surfaces de came 66 sont régulièrement réparties autour de l'axe A. Elles sont au moins en partie orientées autour de l'axe A. Autrement dit, l'intersection entre un premier plan contenant une surface de came et un second plan perpendiculaire à l'axe A et passant par cette surface de came, forme sensiblement un rayon de l'axe A.The lower peripheral edge of the outer wall 46b, located on the side of the housing 20, comprises arrangements or recesses defining cam surfaces 66, here three in number. The cam surfaces 66 are regularly distributed around the axis A. They are at least partly oriented around the axis A. In other words, the intersection between a first plane containing a cam surface and a second plane perpendicular to the axis A passing through this cam surface substantially forms a radius of the axis A.

Dans l'exemple représenté, chaque surface de came 66 a une hauteur ou dimension longitudinale le long de l'axe, qui représente 10 à 50% de celle de la paroi externe 46b ou de la bague 46. Sa longueur ou dimension circonférentielle autour de l'axe s'étend sur un secteur angulaire compris entre 2 et 10° environ.In the example shown, each cam surface 66 has a height or longitudinal dimension along the axis, which represents 10 to 50% of that of the outer wall 46b or the ring 46. Its length or circumferential dimension around the axis extends over an angular sector of between 2 and 10 ° approximately.

Chaque surface de came 66 est reliée à une extrémité au bord périphérique inférieur de la paroi 46b, et à une extrémité opposée à une extrémité d'un bord circonférentiel 68 dont l'extrémité opposée est reliée à un bord axial 70 de liaison au bord périphérique inférieur de la paroi 46b. Le secteur angulaire s'étendant entre le bord axial 70 et l'extrémité de la surface de came 66, opposée à ce bord axial, a un angle qui est inférieur à celui de l'encoche 40 et de la lumière 64.Each cam surface 66 is connected at one end to the lower peripheral edge of the wall 46b, and at an end opposite one end of a circumferential edge 68 whose opposite end is connected to an axial edge 70 of connection to the peripheral edge lower wall 46b. The angular sector extending between the axial edge 70 and the end of the cam surface 66, opposite this axial edge, has an angle which is smaller than that of the notch 40 and the slot 64.

Entre ses parois 46a, 46b, la bague 46 comprend des crochets 72 orientés circonférentiellement vis-à-vis de l'axe A. Les crochets 72 sont régulièrement répartis autour de l'axe A. On comprend que les crochets 72 sont situés sur une circonférence C2 différente de la circonférence C1 passant par les surfaces de came 66, C2 ayant un rayon inférieur à C1.Between its walls 46a, 46b, the ring 46 comprises hooks 72 circumferentially oriented vis-à-vis the axis A. The hooks 72 are regularly distributed around the axis A. It is understood that the hooks 72 are located on a circumference C2 different from the circumference C1 passing through the cam surfaces 66, C2 having a radius less than C1.

On va maintenant décrire la cartouche de combustible 16.The fuel cartridge 16 will now be described.

La cartouche 16 comprend un corps 74, ici sensiblement cylindrique, comprenant une cavité interne de stockage de combustible, et l'embout précité de connexion et de distribution de combustible, qui est configuré pour coopérer par emboîtement avec l'embout 30 du dispositif 14 et qui n'est pas visible dans les dessins.The cartridge 16 comprises a body 74, here substantially cylindrical, comprising an internal fuel storage cavity, and the aforementioned connection and fuel dispensing tip, which is configured to cooperate by interlocking with the tip 30 of the device 14 and which is not visible in the drawings.

Le corps 74 est configuré pour être engagé, ici en partie, dans le logement 20 du boîtier 12 et pour en être désengagé, par translation le long de l'axe A qui est l'axe longitudinal du corps lorsque la cartouche est alignée sur l'axe A, comme représenté à la figure 1.The body 74 is configured to be engaged, here in part, in the housing 20 of the housing 12 and to be disengaged, by translation along the axis A which is the longitudinal axis of the body when the cartridge is aligned with the axis A, as shown in FIG. figure 1 .

La cartouche 16 porte en outre une couronne 76 autour de son embout de connexion. Cette couronne 76 est ici formée d'une seule pièce, par exemple en matériau plastique, et peut être montée en force sur le corps 74. La cartouche 16 équipée de la couronne 76 peut représenter un consommable de l'outil 10.Cartridge 16 further carries a ring 76 around its connection tip. This ring 76 is here formed in one piece, for example in plastic material, and can be mounted in force on the body 74. The cartridge 16 equipped with the ring 76 may represent a consumable of the tool 10.

La couronne 76 comprend une paroi cylindrique 76a d'axe A et une paroi annulaire radiale 76b qui prend ici appui axialement sur un bord périphérique externe de l'extrémité supérieure du corps 74 de la cartouche (figure 4).The ring 76 comprises a cylindrical wall 76a of axis A and a radial annular wall 76b which here bears axially on an outer peripheral edge of the upper end of the body 74 of the cartridge ( figure 4 ).

La paroi radiale 76b comprend un méplat ou une languette 78 en saillie radiale, qui est sensiblement complémentaire de l'encoche 24 de l'ouverture 22 du boîtier. La languette 78 et l'encoche 24 forment des moyens d'indexage pour assurer un positionnement angulaire correct de la cartouche 16 autour de l'axe A lors de son insertion dans le logement 20. On comprend que cette languette 78 est destinée à coopérer avec les raidisseurs 26b et la paroi latérale 28a avant du boîtier pour guider la translation de la cartouche le long de l'axe A dans le logement 20.The radial wall 76b comprises a flat or tongue 78 projecting radially, which is substantially complementary to the notch 24 of the opening 22 of the housing. The tongue 78 and the notch 24 form indexing means to ensure correct angular positioning of the cartridge 16 about the axis A during its insertion into the housing 20. It is understood that this tongue 78 is intended to cooperate with the stiffeners 26b and the front side wall 28a of the housing for guiding the translation of the cartridge along the axis A in the housing 20.

La paroi cylindrique 76a est destinée à coopérer par coulissement axial et circonférentiel avec la paroi interne 46b de la bague. Elle est destinée à s'étendre autour de la paroi 46b, entre celle-ci et les crochets de la bague 46.The cylindrical wall 76a is intended to cooperate by axial and circumferential sliding with the inner wall 46b of the ring. It is intended to extend around the wall 46b, between the latter and the hooks of the ring 46.

La couronne 76 comprend des plots en saillie sur la surface supérieure de sa paroi 76b, qui définissent des surfaces de came 80, ici au nombre de trois. Les surfaces de came 80 sont régulièrement réparties autour de l'axe A. Elles sont au moins en partie orientées autour de l'axe A. Autrement dit, l'intersection entre un premier plan contenant une surface de came et un second plan perpendiculaire à l'axe A et passant par cette surface de came, forme sensiblement un rayon de l'axe A.The ring 76 comprises studs protruding on the upper surface of its wall 76b, which define the cam surfaces 80, here three in number. The cam surfaces 80 are evenly distributed around the axis A. They are at least partially oriented around the axis A. In other words, the intersection between a first plane containing a cam surface and a second plane perpendicular to the axis A passing through this cam surface substantially forms a radius of the axis A.

Dans l'exemple représenté, chaque surface de came 80 a une hauteur ou dimension longitudinale sensiblement identique à celle des surfaces de came 66. Sa longueur ou dimension circonférentielle autour de l'axe est sensiblement identique à celle des surfaces de came 66.In the example shown, each cam surface 80 has a height or longitudinal dimension substantially identical to that of the cam surfaces 66. Its length or circumferential dimension about the axis is substantially identical to that of the cam surfaces 66.

Entre la paroi 76a et les surfaces de cames 80, la couronne 76 comprend des crochets 82 orientés circonférentiellement vis-à-vis de l'axe A. Les crochets 82 sont régulièrement répartis autour de l'axe A et sont destinés à coopérer avec les crochets 72 de la bague 46. On comprend que les crochets 82 sont situés sur une circonférence C2 différente de la circonférence C1 passant par les surfaces de came 80, C2 ayant un rayon inférieur à C1. Chaque crochet 82 a ici une forme générale en L et comprend une portion axiale reliée à une portion circonférentielle. Cette portion circonférentielle comprend une surface supérieure de came 82a destinée à coopérer avec une surface inférieure de came d'un crochet 72, qui peut également avoir une forme générale en L.Between the wall 76a and the cam surfaces 80, the ring 76 comprises hooks 82 circumferentially oriented with respect to the axis A. The hooks 82 are regularly distributed around the axis A and are intended to cooperate with the hooks 72 of the ring 46. It is understood that the hooks 82 are located on a circumference C2 different from the circumference C1 passing through the cam surfaces 80 , C2 having a radius less than C1. Each hook 82 here has a general L shape and comprises an axial portion connected to a circumferential portion. This circumferential portion comprises an upper cam surface 82a for cooperating with a lower cam surface of a hook 72, which may also be generally L-shaped.

Le montage ou l'insertion de la cartouche 16 dans le logement 20 peut être réalisé de la façon suivante.The mounting or insertion of the cartridge 16 in the housing 20 can be performed in the following manner.

La cartouche 16 est présentée à l'entrée du logement 20, c'est-à-dire en face de l'ouverture 22, et alignée sur l'axe A comme représenté à la figure 1, son extrémité supérieure comportant l'embout de connexion et la couronne 76 étant destinée à être insérée en premier dans le logement 20.The cartridge 16 is presented at the inlet of the housing 20, that is to say in front of the opening 22, and aligned with the axis A as shown in FIG. figure 1 its upper end comprising the connecting end and the ring 76 being intended to be inserted first into the housing 20.

La languette 78 d'indexage coopère avec l'encoche 24 pour positionner correctement la cartouche 16 vis-à-vis de l'entrée du logement 20.The tongue 78 indexing cooperates with the notch 24 to correctly position the cartridge 16 vis-à-vis the entrance of the housing 20.

La cartouche 16 est déplacée en translation le long de l'axe A jusqu'à ce que son embout s'emboîte dans l'embout 30 du dispositif d'injection 14. Dans cette position emboîtée, une partie d'extrémité inférieure de la cartouche 16 reste à l'extérieur du boîtier comme représenté à la figure 2, pour faciliter son retrait en vue par exemple de son remplacement.The cartridge 16 is moved in translation along the axis A until its tip engages in the tip 30 of the injection device 14. In this nested position, a lower end portion of the cartridge 16 remains on the outside of the case as shown at figure 2 , to facilitate its withdrawal with a view for example of its replacement.

Lors de l'emboîtement des embouts, les surfaces de came des crochets 72, 82 coopèrent ensemble pour que la force d'insertion appliquée par un utilisateur sur la cartouche génère une rotation de la bague 46 autour de l'axe A. Lors de cette rotation, les plots de la couronne 76 se déplacent dans les aménagements de la bague 46 et passent par exemple de la position représentée à la figure 5a à la position représentée à la figure 5b. Après glissement des surfaces de came des crochets 72, 82 les unes sur les autres, le maintien de la force d'insertion sur la cartouche permet aux parties circonférentielles des crochets 82 de la couronne de dépasser axialement celles des crochets 72 de la bague 46. Le ressort 44 assure alors un retour élastique de la bague 46 dans sa position de repos, ce qui assure l'engagement des crochets 72 de la bague dans ceux 82 de la couronne. Lors de ce retour élastique, les plots de la couronne 76 se déplacent dans les aménagements de la bague 46 et passent par exemple de la position représentée à la figure 5b à la position représentée à la figure 5a. La cartouche 16 est alors verrouillée et l'outil 10 peut être utilisé.During nesting of the end pieces, the cam surfaces of the hooks 72, 82 cooperate together so that the insertion force applied by a user to the cartridge generates a rotation of the ring 46 about the axis A. During this rotation, the studs of the ring 76 move in the arrangements of the ring 46 and pass for example from the position shown in FIG. figure 5a at the position shown in figure 5b . After sliding the cam surfaces of the hooks 72, 82 on each other, maintaining the insertion force on the cartridge allows the circumferential portions of the hooks 82 of the crown to protrude axially. those of the hooks 72 of the ring 46. The spring 44 then ensures an elastic return of the ring 46 in its rest position, which ensures the engagement of the hooks 72 of the ring in those 82 of the ring. During this elastic return, the studs of the ring 76 move in the arrangements of the ring 46 and pass for example from the position shown in FIG. figure 5b at the position shown in figure 5a . The cartridge 16 is then locked and the tool 10 can be used.

Le démontage ou le désengagement de la cartouche 16 du logement 20 peut être réalisé de la façon suivante.Disassembly or disengagement of the cartridge 16 from the housing 20 can be achieved in the following manner.

L'utilisateur applique une force sur le doigt 62 pour le déplacer de sa position de repos représentée à la figure 2 à sa position opposée représentée à la figure 1. La rotation du doigt 62 se fait en plusieurs sous-étapes qui sont illustrées par les figures 5a à 5e.The user applies a force on the finger 62 to move it from its rest position shown in FIG. figure 2 at its opposite position represented in the figure 1 . The rotation of the finger 62 is done in several sub-steps which are illustrated by the Figures 5a to 5e .

La figure 5a, avec la figure 2, représentent la cartouche 16 et la bague 46 en position de fonctionnement. Dans cette position, les plots de la couronne 76 sont situés dans les aménagements de la bague 46 et sont à distance circonférentielle des surfaces de came de la bague 46.The figure 5a , with the figure 2 , represent the cartridge 16 and the ring 46 in the operating position. In this position, the studs of the ring 76 are located in the arrangements of the ring 46 and are at circumferential distance from the cam surfaces of the ring 46.

La figure 5b représente le cas où le doigt 62 a été déplacé sur une partie de sa course dans la lumière du boîtier, jusqu'à ce que les surfaces de came 66, 80 sont en contact les unes sur les autres ou au voisinage immédiat les unes des autres. Ce déplacement permet aux crochets 72, 82 de se désengager les uns des autres, déverrouillant ainsi la cartouche 16.The figure 5b represents the case where the finger 62 has been moved over part of its travel in the housing lumen, until the cam surfaces 66, 80 are in contact with one another or in the immediate vicinity of each other . This movement allows the hooks 72, 82 to disengage from each other, thus unlocking the cartridge 16.

La figure 5c représente le cas où le doigt 62 est davantage déplacé dans la lumière 64. Les surfaces de came 66, 80 coopèrent entre elles pour que la rotation de la bague 46 entraîne une translation de la cartouche 16 le long de l'axe A et le désengagement des embouts.The figure 5c represents the case where the finger 62 is further moved in the slot 64. The cam surfaces 66, 80 cooperate with each other so that the rotation of the ring 46 causes a translation of the cartridge 16 along the axis A and the disengagement tips.

La figure 5d représente le cas où le doigt 62 est arrivé en fin de course dans la lumière 64. Les surfaces de came 66, 80 ont fini de coopérer ensemble et les embouts sont désengagés l'un de l'autre.The figure 5d represents the case where the finger 62 has reached the end of the stroke in the light 64. The cam surfaces 66, 80 have finished cooperating together and the end pieces are disengaged from one another.

La cartouche 16 peut alors être retirée manuellement sans difficulté par l'utilisateur, par translation le long de l'axe A (figure 5e).The cartridge 16 can then be manually removed without difficulty by the user, by translation along the axis A ( figure 5e ).

Dans une variante de réalisation de l'invention non représentée, la bague (mobile) pourrait être portée par la cartouche et la couronne (fixe) pourrait être portée par le boîtier de l'outil.In an alternative embodiment of the invention not shown, the ring (mobile) could be carried by the cartridge and the ring (fixed) could be carried by the housing of the tool.

Claims (15)

Cartouche (16) de combustible pour un outil (10) de fixation à gaz, comportant un corps (74) comprenant une cavité interne de stockage de combustible, ledit corps étant configuré pour être engagé au moins en partie dans un logement (20) dudit outil et pour en être désengagé, par translation le long d'un axe longitudinal (A) dudit corps, ladite cartouche comportant entre outre un embout de connexion et de distribution de combustible configuré pour coopérer avec un moyen (30) complémentaire dudit outil lors l'engagement précité dudit corps, caractérisée en ce que ladite cartouche comprend des moyens (76) pour faciliter son désengagement dudit logement, lesdits moyens comportant au moins une première surface de came (80) qui s'étend au moins en partie autour dudit axe.A fuel cartridge (16) for a gas attachment tool (10), comprising a body (74) including an internal fuel storage cavity, said body being configured to be engaged at least in part in a housing (20) of said fuel tool and to be disengaged, by translation along a longitudinal axis (A) of said body, said cartridge further comprising a fuel connection and distribution nozzle configured to cooperate with a means (30) complementary to said tool when the abovementioned engagement of said body, characterized in that said cartridge comprises means (76) for facilitating its disengagement from said housing, said means comprising at least a first cam surface (80) which extends at least partly around said axis. Cartouche (16) selon la revendication précédente, dans laquelle ladite au moins une surface de came (80) est située sur une couronne (76) montée sur la cartouche et s'étendant au moins en partie autour dudit embout.Cartridge (16) according to the preceding claim, wherein said at least one cam surface (80) is located on a ring (76) mounted on the cartridge and extending at least partly around said tip. Cartouche (16) selon la revendication précédente, dans laquelle ladite couronne (76) comprend deux ou trois surfaces de came (80) régulièrement réparties autour dudit axe (A) et orientées dans la même direction autour de cet axe.Cartridge (16) according to the preceding claim, wherein said ring (76) comprises two or three cam surfaces (80) uniformly distributed around said axis (A) and oriented in the same direction about this axis. Cartouche (16) selon la revendication précédente, dans laquelle lesdites surfaces de came (80) sont situées sur une première circonférence (C1) centrée sur ledit axe (A).Cartridge (16) according to the preceding claim, wherein said cam surfaces (80) are located on a first circumference (C1) centered on said axis (A). Cartouche (16) selon la revendication 3 ou 4, dans laquelle ladite couronne (76) comprend au moins un crochet (82), et de préférence deux ou trois crochets régulièrement répartis autour dudit axe (A), configuré pour coopérer avec un moyen (72) complémentaire dudit outil (10).Cartridge (16) according to claim 3 or 4, wherein said ring (76) comprises at least one hook (82), and preferably two or three hooks regularly distributed around said axis (A), configured to cooperate with a means ( 72) complementary to said tool (10). Cartouche (16) selon la revendication précédente, en dépendance de la revendication 4, dans laquelle ledit crochet (82) ou lesdits crochets sont situés sur une seconde circonférence (C2) centrée sur ledit axe (A), différente de ladite première circonférence (C1).Cartridge (16) according to the preceding claim, in dependence on claim 4, wherein said hook (82) or said hooks are located on a second circumference (C2) centered on said axis (A), different from said first circumference (C1 ). Cartouche (16) selon l'une des revendications 2 à 6, dans laquelle ladite couronne (76) comprend un bord périphérique externe comportant un méplat d'indexage ou comportant une languette radialement externe (78) d'indexage.Cartridge (16) according to one of claims 2 to 6, wherein said ring (76) comprises an outer peripheral edge having an indexing flat or having a radially outer tab (78) for indexing. Cartouche (16) selon l'une des revendications 2 à 7, dans laquelle ladite couronne (76) est formée d'une seule pièce, par exemple en matériau plastique, et est montée, par exemple en force, sur ledit corps (74).Cartridge (16) according to one of claims 2 to 7, wherein said ring (76) is formed in one piece, for example of plastic material, and is mounted, for example in force, on said body (74) . Outil (10) de fixation à gaz, comportant un boîtier (12) présentant un logement (20) configuré pour recevoir une cartouche de combustible (16) selon l'une des revendications précédentes, ledit outil comportant en outre au moins une seconde surface de came (66) configurée pour coopérer avec ladite première surface de came (80) et s'étendant au moins en partie autour d'un axe longitudinal (A) dudit logement.A gas fastening tool (10) having a housing (12) having a housing (20) configured to receive a fuel cartridge (16) according to one of the preceding claims, said tool further comprising at least a second surface of cam (66) configured to cooperate with said first cam surface (80) and extending at least partly around a longitudinal axis (A) of said housing. Outil (10) selon la revendication précédente, dans lequel il comprend une bague (46) portant ladite au moins une seconde surface de came (66) et mobile en rotation autour dudit axe (A).Tool (10) according to the preceding claim, wherein it comprises a ring (46) carrying said at least one second cam surface (66) and rotatable about said axis (A). Outil (10) selon la revendication précédente, dans lequel ladite bague (46) est montée mobile en rotation vis-à-vis vis d'un organe (14) d'injection de combustible, ledit organe comportant un moyen (30) complémentaire dudit embout de la cartouche (16).Tool (10) according to the preceding claim, wherein said ring (46) is rotatably mounted vis-à-vis a member (14) for fuel injection, said member comprising a means (30) complementary said cartridge tip (16). Outil (10) selon la revendication 10 ou 11, dans lequel ladite bague (46) est montée mobile en rotation vis-à-vis dudit boîtier (12) et comprend un doigt (62) radialement externe traversant une lumière (64) dudit boîtier, une extrémité libre dudit doigt étant configurée pour être située à l'extérieur dudit boîtier et accessible par un utilisateur en vue d'un désengagement de ladite cartouche (16) par rotation du doigt dans la lumière.The tool (10) of claim 10 or 11, wherein said ring (46) is rotatably mounted to said housing (12) and includes a radially outer finger (62) extending through a lumen (64) of said housing a free end of said finger being configured to be located outside said housing and accessible by a user for disengagement of said cartridge (16) by rotating the finger in the light. Outil (10) selon la revendication précédente, dans lequel ladite bague (46) comprend deux ou trois secondes surfaces de came (66) régulièrement réparties autour dudit axe (A) et orientées dans la même direction autour de cet axe.Tool (10) according to the preceding claim, wherein said ring (46) comprises two or three second cam surfaces (66) evenly distributed about said axis (A) and oriented in the same direction about this axis. Outil (10) selon la revendication 13, dans laquelle ladite bague (46) comprend au moins un crochet (72), et de préférence deux ou trois crochets régulièrement répartis autour dudit axe (A), configuré pour coopérer avec un moyen (72) complémentaire de ladite cartouche (16).Tool (10) according to claim 13, wherein said ring (46) comprises at least one hook (72), and preferably two or three hooks regularly distributed around said axis (A), configured to cooperate with a means (72) complementary to said cartridge (16). Outil (10) selon l'une des revendications 9 à 14, dans lequel ledit boîtier (12) comprend à l'intérieur dudit logement (20) des moyens (24, 26, 28) d'indexage et/ou de guidage configurés pour coopérer avec un moyen (78) complémentaire de ladite cartouche (16).Tool (10) according to one of claims 9 to 14, wherein said housing (12) comprises within said housing (20) means (24, 26, 28) for indexing and / or guiding configured for cooperate with means (78) complementary to said cartridge (16).
EP16200427.9A 2015-12-18 2016-11-24 Fuel cartridge for a gas-fixing tool and gas-fixing tool comprising such a cartridge Active EP3181297B1 (en)

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FR1562720A FR3045430B1 (en) 2015-12-18 2015-12-18 FUEL CARTRIDGE FOR A GAS FASTENING TOOL AND A GAS FASTENING TOOL COMPRISING SUCH A CARTRIDGE

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EP (1) EP3181297B1 (en)
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US11179837B2 (en) * 2017-12-01 2021-11-23 Illinois Tool Works Inc. Fastener-driving tool with multiple combustion chambers and usable with fuel canisters of varying lengths
US11992925B2 (en) 2021-11-23 2024-05-28 Illinois Tool Works Inc. Fuel cell adapter for fastener driving tool

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FR3045430A1 (en) 2017-06-23
CA2949505A1 (en) 2017-06-18
AU2016266088B2 (en) 2018-11-15
NZ727044A (en) 2018-01-26
EP3181297B1 (en) 2018-08-08
US20170173772A1 (en) 2017-06-22
AU2016266088A1 (en) 2017-07-06
FR3045430B1 (en) 2018-01-05
CA2949505C (en) 2018-10-16
US10850378B2 (en) 2020-12-01

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