FR2849155A1 - Device for holding a gas bottle adapted to cooperate with a gas regulator, e.g. for camping stove, includes two angularly displaceable halves having top rings that are concentric when bottle is contained and regulator is attached - Google Patents

Abstract

The device includes two symmetrical halves (9a,9b) for holding a gas bottle (18), each having a top ring (12a,12b), at least one of which is equipped with a device for fixing a gas regulator. The halves include, at their base, a device for preventing introduction of a gas bottle, and an articulation device permitting the halves to be relatively angularly displaced between a bottle introduction position and a use position in which the rings concentrically contact one another and allow reception of the regulator which locks the two halves together.

Description

i

  The present invention relates to a device for retaining a pierceable gas cartridge.

  Many devices work with a pierceable gas cartridge These devices can be camping stoves, lamps, blow lamps, etc. Schematically, in addition to accessories specific to its use, the device itself consists of a gas sampling device comprising a perforating needle and a system for retaining a cartridge containing a gas, which can be perforated by the needle.

  The cartridge, in a well known manner, has a cylindrical shape, consisting of a metal wall. The bottom of the cartridge consists of a concave sheet crimped onto the metal wall. The upper part of the cartridge is curved and present, at the level of its axis of revolution, a concave perforation zone.

  The implementation of these devices is done by placing the cartridge in the retaining system The latter is equipped with a threaded ring into which the sampling member is screwed.

  During its screwing, the sampling member punctures the cartridge at its concavity formed in its upper part.

  Two types of puncture-resistant cartridge retention system are known, a type known as calipers and a type known as a bell type.

  The stirrup type apparatus comprises a shell having a threaded ring on which two stirrups are articulated.

  The shell covers the upper part of the cartridge and the two stirrups are folded down to engage the wall of the concave bottom of the cartridge. The gas sampling system is then screwed onto the shell and, at the end of the screwing, the needle punctures the cartridge. It must be specified that the sampling system is equipped with a seal which seals around the bore. cartridge.

  When the device is implemented in the manner described above, the perforation of the cartridge is done in a perfectly controlled manner Indeed, the gas sampling system perforates the cartridge while being perfectly guided by the threaded ring in the direction of the axis of revolution of the cartridge so that the perforation of the cartridge takes place exactly at the concave perforation zone formed in its upper part.

  However, there may be an incorrect implementation of the device by a user who disregards the instructions for implementation 5 In particular, in rare cases, it may happen that the gas sampling system is previously screwed on the shell of the cartridge retaining system, without it being lined with a cartridge. This can happen, for example, when the device has been stored in this way.

  The user may then be tempted to place a cartridge in the retention system on which the gas sampling system is screwed.

  The consequence of this incorrect implementation is that the perforation of the cartridge is imperfect, that is to say, the cartridge is perforated without being completely immobilized by the retaining system It is indeed found that in this implementation incorrect work, the user places the cartridge in the shell and then tries to fold down a first stirrup, which offsets the cartridge; making the cartridge is perforated while it is not in the axis of perforation and it is not fully immobilized by the restraint system There is therefore a significant risk of gas leakage with of course all the risks that this entails, in particular if the operation takes place in an enclosed space or near a flame.

  With regard to the bell-type device, a similar principle of perforating the cartridge is implemented.

  In this type of device, the cartridge retaining members consist of a stamped metal bell open at its base and having a threaded ring at its top, and by a disc closing off the base of the bell. , conventionally, fixed to the bell by a ba dennette type fixing.

  The implementation of a device of the bell type is done, first of all, by placing a perforable cartridge in the retaining members, that is to say 30 in the bell and then coming to close it by the disc d shutter.

  Then, the gas sampling member is screwed onto the ring of the bell and, at the end of the screwing stroke, the needle punctures the cartridge present in the bell.

  There may also be an incorrect implementation of this type of apparatus. In fact, in the same way as this can happen for the caliper apparatus, a user may attempt to insert a cartridge into a bell on which the gas sampling device is already fixed.

  The perforation of the cartridge can then occur while it is not immobilized relative to the bell. There is therefore, here again, a significant risk of gas leakage.

  For these reasons, it seems essential to improve the security of devices using a perforable cartridge.

  More specifically, an object of the invention is to propose a cartridge retaining device which prohibits the insertion of a cartridge when the retaining device is not in its configuration allowing the insertion of a cartridge and in particular when equipped with a gas sampling device.

  To this end, the device according to the invention for retaining a perforable gas cartridge capable of cooperating with a gas sampling member 15 comprising a perforating needle consists of two symmetrical half retaining elements for the cartridge having at their apex, each, a ring at least one of them being equipped with means for fixing the sampling member and, at their base, means for preventing the introduction of a cartridge and an articulation allowing an angular displacement between two half elements relative to their base between an insertion position allowing a cartridge to be placed and a position of use in which the two elements are in contact with each other and in which the two rings are concentric and superimposed, allowing the reception of the gas sampling member and locking the device in this latter position.

  Thanks to these characteristics, the device is significantly safer to use than that of known devices.

  The correct implementation of the device consists, firstly, of placing the device in an insertion position, that is to say of rotating the half elements relative to one another and then placing a gas cartridge puncturable in the device In a second step, the device is placed in a position of use, that is to say a position in which the two half-elements are in contact with each other and enclose the cartridge; in this position of use, the two rings are superimposed.

  In a third step, the gas sampling device is introduced into the two rings and is fixed on one or both. The gas sampling device passing through the two rings is used as a dowel and ensures the locking of the two half elements with respect to each other.

  Any bad implementation is eliminated.

  Indeed, if the gas sampling device is fixed to one of the half retaining elements, it is obvious to the user that the gas cartridge cannot be accommodated in the device when it is in this configuration In such a case, on the one hand one of the half elements is free which is a strong indication of an incorrect implementation, on the other hand the cartridge cannot be inserted by the base since the means of prohibition are provided at this level The user is therefore forced to remove the gas sampling device, then to implement the device correctly. If the sampling device is engaged through the two rings and locks the two half elements with respect to each other, it is impossible to introduce a cartridge through the base since means of prohibition are provided for this. level The user is therefore forced to remove the gas sampling device, then to implement the device correctly.

  To ensure the attachment of the sampling member to the half elements, at least one of the rings of the retaining elements has a thread onto which the sampling member is screwed.

  According to a first embodiment, each half element comprises a half shell on which is fitted a U-shaped bracket 25 having two parallel uprights connected by a transverse rod, a metal clip connecting the transverse rods of each bracket.

  In addition, the transverse rods of the stirrups have a shape of handle directed towards one another.

  To carry out an interlocking of the half-shells with respect to one another, one of the half-shells has on its contact surface at least one boss engaging in a bore made in the other half-shell.

  To prevent the staple from sliding relative to the transverse rods of the stirrups, the transverse rods have a boss which takes place in a hole made at each end of the staple.

  According to an advantageous characteristic, each of the two half shells has two holes plumb with two vertical housings in which engage the amounts of the stirrups preventing any movement of the stirrups relative to the half shells.

  According to a second embodiment, each half element is constituted by a half bell each having at its top a ring and at their base a hemispherical rim and means of articulation.

  In addition, one of the half bells has two diametrically opposite cylindrical studs, engaged in two diametrically opposite bearings, formed in the other half bell.

  For a good understanding, the invention is described with reference to the appended drawing representing by way of nonlimiting examples, two embodiments of devices according to this one.

  Figures 1, 2, 3 show a retaining device according to a first embodiment during three stages of implementation.

  Figures 4, 5, 6 and 7 show a device according to a second embodiment during three stages of its implementation.

  In each of the two embodiments, the gas sampling member 2 is identical. In a manner known per se, this member comprises a perforating needle 3 housed inside a tubular plunger 4.

  The end of the pusher 4 is provided with an O-ring 5 This member 2, which is an integral part of any gas appliance, is well known and will not be the subject of a more complete description It must be, nevertheless , specified that the gas sampling device has a threaded part 6.

  Referring first to Figure 1, we see that the device comprises two half elements 9 a, 9 b, consisting of two half 25 shells 10 Oa, 10 Ob symmetrical on each of which is respectively fitted a stirrup referenced 11 a and 11 b.

  As can be seen more clearly in FIG. 2, the half shells 10 a, 10 Ob are each provided with a circular ring 12 a, 12 b which, when the two half shells 10 Oa, 10 Ob are joined one to the other 'other, coincide 30 with each other In other words, the two rings 12 a, 12 b are superimposed, when the half shells 10 Oa, 10 Ob are in contact They are also equipped with a ring One of these two rings 12 a and 12 b is also threaded.

  As regards the two stirrups 11 a, 11 b, each of them consists of two vertical uprights 14 a, 14 b which, at their upper end, fit into one of the half shells 10 a, 10 b and at their lower end are connected by a transverse rod 15 a, 15 b in the form of a loop. As can be seen in the figures, the interlocking of the stirrups is done in holes made in the half-hulls. It is also noted that two housings vertical are practiced in each of the half-shells in which the 5 vertical uprights 14 a, 14 b engage. Thus, each stirrup is completely locked with respect to the half-shell on which it is fixed.

  The stirrups are connected by a metal clip 16 This clip 16 constitutes the only articulation between the two stirrups 11 a, 11 b and, consequently, between the two half shells 1 Oa, 1 Ob.

  The clip 16 consists of a sheet metal element folded at each of its ends around the transverse rods 15 a, 15 b The rods having a circular section, the clip 16 therefore allows articulation of the half shells 1 Oa, 1 Ob one in relation to the other.

  To prevent the clip 16 from sliding relative to the transverse rods 15 a, 15 b, the latter have a boss 17 which takes place in a hole made at each end of the clip 16.

  The installation of a gas cartridge 18 is done as shown in Figure 2, by rotating the two half elements 9 a, 9 b relative to each other This allows to insert the cartridge gas 18.

  Then, the two half elements 9 a, 9 b are brought closer to each other and enclose the cartridge 18.

  The cartridge is therefore held at its base by the two transverse rods 15 a, 15 b on which the concave part of the cartridge 18 rests, radially the cartridge 18 is held by the uprights 14 a, 14 b of the 25 stirrups 11 a, 11 b and at its top, the cartridge 18 is held by the half-shells 10 a, 10 b in contact with one another. It is noted that the half-shell 10 a has two bosses 19 which penetrate into complementary bores 20 formed in the half-shell 1 Ob.

  It can therefore be seen that the cartridge 18 is therefore perfectly maintained.

  It then only remains for the user to engage the gas sampling member 2 in the rings 12 a, 12 b and to screw it into one of the rings. At the end of the screwing stroke, the piercing needle 3 pierces the cartridge 18.

  In the second embodiment of the invention described in Figures 4 to 7, the device comprises two half elements 24 a, 24 b consisting of two half bells 25 a, 25 b The two half bells 25 a, 25 b each have at their apex a threaded circular ring which, when the two half bells are joined to one another, coincide with each other, which means that the two rings 26 a, 26 b are superimposed when the two half bells are in contact with each other.

  At their base, the half-bell 25 a has two cylindrical pins 27 diametrically opposite and the half-bell 25 b has two bearings 28 also diametrically opposite.

  The cylindrical pins 27 therefore engage in the bearings 28 in order to produce the articulation of the half bells 25 a and 25 b, one relative to the other. Referring to FIG. 4 which shows in perspective with a partial cutaway the device it appears that a hemispherical rim 29 is present at the base of each of the half shells 25 a, 25 b.

  The implementation of a perforable cartridge 18 is done according to a protocol substantially equivalent to that described above for the first embodiment. In fact, to place a cartridge 18, it is first necessary to rotate the half shells 25 a, 25 b relative to each other. This pivoting makes it possible to insert a cartridge 18 between each of the half bells 25 a, 25 b Then the two half bells are brought closer to each other and enclose the cartridge 18 This is held at its base 25 by the flanges 29 and is held laterally and at its top by the two half-bells 25 a, 25 b The user can then fix the sampling member 2 in rings 26 a, 26 b, one of which is threaded from each of the half bells 25 a and 25 b, This screwing being made possible by the fact that the two rings 26 a, 26 b are superimposed This superposition of the two rings 30 is clearly shown in Figure 7 which shows in section the retainer.

  It should be noted that the structure of the two rings 26 a, 26 b, if it is shown in FIG. 7 with reference to the second embodiment, is completely transposable as regards the first embodiment.

  The invention, in each of its embodiments, therefore solves the problem of the devices known in the prior art. Indeed, the two cartridge retaining devices described above do not allow the installation of a cartridge. only when the gas sampling device is removed from the cartridge retaining system This considerably secures devices using perforable gas cartridges since, thanks to the invention, it is no longer possible to place a gas cartridge on a 5 retaining system for this cartridge on which the sampling device has already been installed.

  It goes without saying that the invention is not limited to the two embodiments described above by way of nonlimiting examples, but on the contrary embraces all the embodiments thereof.

  Thus, one could consider means for fixing the gas sampling member 2 to the cartridge retaining device by means other than screwing. This could for example be a clipping system.

Claims (8)

  1 device for retaining a perceived gas cartridge (18) capable of cooperating with a gas sampling member (2) comprising a puncturing needle characterized in that it consists of two symmetrical half elements (9a , 9 b, 25 a, 25 b) for retaining the cartridge (18) having at their apex, each, a ring (12 a, 12 b, 26 a, 26 b) of which at least one is equipped with means for fixing the sampling organ and, at their base, means for prohibiting the introduction of a cartridge and an articulation allowing angular movement between two half elements (9 a, 9 b, 25 a, 25 b) relative to their base between an insertion position for placing a cartridge (18) and a position 15 of use in which the two elements (9 a, 9 b, 25 a, 25 b) are in contact with each other and in which the two rings (12 a, 12 b, 26 a, 26 b) are concentric and superimposed, allowing the reception of the gas sampling (2) and locking the device in this latter position.   2 Device according to claim 1, characterized in that at least one of the rings (12 a, 12 b, 26 a, 26 b) of the half elements has a thread on which is screwed the sampling member (2) .   3 Device according to one of claims 1 to 2, characterized in that each half element (9 a, 9 b) comprises a half shell (10 a, 10 b) on which is fitted a stirrup (11 a, 11 b ) U-shaped having two parallel uprights (14 a, 14 b) connected by a transverse rod (15 a, 15 b), a metal clip (16) connecting the transverse rods of each bracket (11 a, 1 b).   4 Device according to claim 3, characterized in that the transverse rods (15 a, 15 b) of the stirrups (11 a, 11 b) have a shape of handle directed towards one another.   Device according to one of claims 3 to 4, characterized in that one of the half shells (10 a, 10 b) has on its contact surface at least one boss (19) engaging in a bore (20 ) provided in the other half-shell.   6 Device according to one of claims 3 to 5, characterized in that each of the two half-shells (9 a, 9 b) has two holes plumb with two vertical housings (13 a, 13 b) in which s' engage the uprights (14 a, 14 b) of the stirrups.   7 Device according to one of claims 4 to 6, characterized in that the transverse rods (15 a, 15 b) have a boss (17) which takes place in a lumen formed at each end of the clip (16).   8 Device according to one of claims 1 to 3, characterized in that each half element (24 a, 24 b) is constituted by a half bell (25 a, 25 b) each having at their top a ring (26 a, 26 b) and at their base a hemispherical rim (29) and articulation means.   9 Device according to claim 8, characterized in that one of the half bells (25 a, 25 b) has two diametrically opposite cylindrical pins (27), engaged in two bearings (28) diametrically opposite, formed in the other half Bell.