• 专利附录
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    • 专利摘要:
    Tapping unit for a closed pressure fluid accumulator (6), comprising a housing (11) with a connecting portion (110) for the accumulator (6), in or on the housing (11) arranged tensionable piercing element (2), wherein the tapping element (2) between a clamping position and a piercing position is movable, and a triggering mechanism (4) with a locking device for releasably detecting the tapping element (2). The piercing unit (1) is designed such that the tensioned piercing element (2) carries out a piercing movement from the tensioning position into the piercing position by actuating the triggering mechanism (4) while relaxing a first tensioning element (21). The tapping unit (1) is further designed such that by connecting the connecting portion (110) with the pressure fluid store (6) the piercing element (2) in a loading movement from the piercing position against the piercing movement under tension of the first clamping element (21) into the clamping position is, wherein the locking device is arranged displaceably to the housing (11) and moves with said loading movement.
    公开号:CH710987A1
    申请号:CH00544/15
    申请日:2015-04-21
    公开日:2016-10-31
    发明作者:Hutter Simon
    申请人:Mammut Sports Group Ag；
    IPC主号:
    专利说明:

    TECHNICAL AREA
    The present invention relates to a piercing unit for piercing a closed pressure medium reservoir, such as a print cartridge or CO2 cartridge for an avalanche airbag system or a life jacket.
    STATE OF THE ART
    There are known piercing, which have a linearly movable piercing element, which is biased by a spring and locked by a locking unit is accommodated in clamping position in the tapping unit. Exempted by tripping, the piercing element can be driven by the spring out of the clamping position into a piercing position, whereby the pressure medium accumulator attached to the piercing unit is pierced.
    The piercing element must be manually withdrawn after such release under tension of the said spring, wherein the locking unit engages in again in clamping position befindlichem piercing and determines the biased piercing element for triggering in clamping position. Thereafter, the pierced pressure fluid container can be removed and a new one used, whereby the system is ready for re-triggering.
    PRESENTATION OF THE INVENTION
    It is an object of the present invention to provide an improved and more reliable piercing unit of the type mentioned above for piercing a pressure medium container such as a gas cartridge or a disposable bottle.
    This object is achieved by a tapping unit with the features of claim 1. Accordingly, a tapping unit for a closed pressure fluid reservoir, in particular for a cartridge of an avalanche airbag or a life jacket, proposed. In this case, the piercing unit comprises:
    A housing with a connecting portion for establishing a connection with the pressure fluid reservoir,
    A arranged in or on the housing, tensioning piercing element for piercing the accumulator, wherein the piercing element between a clamping position and a piercing position is movable, and
    A triggering mechanism with a locking device for releasably detecting the piercing element,
    Wherein the tapping unit is designed such that the tensioned piercing element performs a piercing movement from the tensioning position into the piercing position by actuating the triggering mechanism while relaxing a first tensioning element. If the piercing element is in the piercing position, then the pressure medium reservoir used is open. The problem is solved by the fact that
    The piercing unit is further configured such that by the preparation of the compound of the connecting portion with the accumulator the piercing element in a loading movement from the piercing against the piercing movement under tension of the first clamping element is transferred to the clamping position, wherein the locking device slidably disposed to the housing is and moves with the said loading movement.
    By entraining the locking device with the loading movement of the piercing element, the locking device can already lock the piercing element located in the piercing, which improves the safety of the system, since even before the clamping of the clamping element unintentional piercing of the accumulator is prevented.
    In a preferred embodiment, the tapping unit comprises a cage movably mounted in the housing between a first cage position and a second cage position. The tapping unit is in this case designed such that the cage is detected in connected to the connecting portion accumulator in the first cage position. Moreover, the piercing element is further configured such that the piercing element in the clamping position on the locking device on the cage located in the first cage position detectable and at a locking device releasing operation of the trigger mechanism for performing the piercing relative to the cage located in the first cage position in the piercing position is releasable.
    The term "cage" here refers to a housing-like element which is movably mounted or guided in or on the housing itself, in particular as a carriage. The cage is further adapted to receive elements such as the piercing element and possibly also the locking device, and to be used in the displacement movement, i. the loading movement, carry.
    Preferably, the locking device is arranged in or on the cage and is carried in the cage itself during the movement of the cage and comprises at least one blocking element, wherein at least one corresponding recess is provided.
    In a further development, the locking device is designed such that the dissolved locking device with piercing element located in the piercing and in solving the connection of the accumulator from the connecting portion, which brings the cage in the second cage position, the cage and the piercing again determines each other. In this case, the cage is preferably automatically transferred by the removal of the pressure medium storage from the first to the second cage position upon solution of the connection of the accumulator with the connecting portion.
    Such an automatic detection of the piercing in Anstechlage on the cage is advantageous because the tapping unit locked so for further use before tightening the first clamping element. This interlocking thus takes place during the removal of the empty accumulator, so optimal security is required. As soon as the pressurized full memory comes into contact with the piercing unit, the piercing element is already locked. By an automatic displacement of the cage from the first to the second cage position upon removal of the accumulator, the system is also fully prepared for receiving a new accumulator. This can for example be done with another clamping element which biases the cage in the first cage position under pressure against the second cage position. Thus, a total of a very simple and quick change of pressure fluid reservoir under optimal safety conditions is possible.
    A further development of the piercing unit thus comprises a second clamping element, wherein the second clamping element is arranged and designed such that the cage is biased in the first cage position so that the cage upon solution of the compound of the pressure fluid reservoir with the connecting portion under relaxation of the second Clamping element from the first cage position in the second cage position and in the preparation of the connection of the accumulator with the connecting portion under tension of the second clamping element from the second cage position is guided in the first cage position. The automatic return of the cage during the removal of the accumulator is thus preferably achieved via a second clamping element, preferably a compression or tension spring. In particular, it may be a helical compression spring like the first tensioning element.
    Preference is given to a tapping unit, which is also designed such that the cage is moved during the transition from the first cage position in the second cage position by solving the connection between the accumulator and the connecting portion relative to the piercing element located in the piercing. Preferably, the piercing element rests in piercing position so when removing the empty pressure fluid reservoir; so it does not move with respect to the housing while the cage shifts relative to the housing. As a result, the piercing element moves only during the loading process along the loading movement and during the triggering along the piercing movement. Once the cage has arrived in the second cage position, it is also preferred that the locking device automatically makes the determination between the cage and piercing element. This embodiment further increases the safety of the tapping unit.
    In a particularly preferred embodiment, the locking device comprises a main blocking element, a kind of sliding block. The main blocking member is movable relative to the piercing member and the cage and alignable with the cage for engagement with an engagement recess of the piercing member or the cage for detecting the piercing member. By means of the main blocking element, depending on its position, in particular the relative movement between cage and piercing element can be blocked. The main blocking element is thus designed and arranged in this case,
    That in the transfer of the cage from the first cage position into the second cage position by the solution of the connection of the pressure medium memory with the connecting portion of the cage located in the piercing position piercing element by engagement of the main blocking element in the engaging recess, and
    That the over the engagement of the main blocking element in the engagement recess located on the cage located in the second cage position piercing element upon transfer of the cage from the second cage position in the first cage position by making the connection of the accumulator with the connecting portion under tension of the first clamping element can be transferred from the piercing into the clamping position, so that the piercing element then located in the clamping position on the cage then located in the first cage position by the operation of the trigger mechanism is releasably detected.
    It is further preferred that the triggering mechanism has a release bolt movably mounted between a first and a second pin position. This bolt is preferably designed in such a way that the main blocking element, which is in engagement with the engagement recess and thus blocking, is free to retreat from the engagement recess by actuating the trigger mechanism and transferring the release bolt into the second bolt position. Preferably, the piercing unit is designed such that the released main blocking element automatically moves out of the engagement recess and enables the piercing movement with relaxation of the first tensioning element.
    In a preferred embodiment, the piercing element comprises a displaceable along the piercing body. This main body is preferably substantially cylindrical. The base body comprises a piercing tip for piercing the pressure medium reservoir, wherein the engagement recess is arranged in the base body and directed substantially transversely to the piercing movement. In this case, the cage has a substantially transverse to the piercing transverse opening in which the main blocking element is mounted transversely to the piercing, wherein the engaging in the engaging recess main blocking element upon actuation of the trigger mechanism for transverse displacement of the engagement recess in the transverse opening by transferring the release bolt from the second pin position in the first pin position is releasable, so that the piercing element is free to perform the tapping movement.
    In this example, the piercing element is guided in the cage, wherein the main blocking element is mounted directly in the cage and from the transverse opening in the cage blocking in a piercing movement of the piercing element is pushed. The piercing element itself is guided in a recess in the cage, which runs transversely or at an angle to the transverse opening, namely along the piercing movement. The trigger pin is also guided in a recess in the cage, this recess preferably being parallel to the recess for the piercing element. Alternatively, the recess for the bolt can also run at an angle or even transversely to the recess for the piercing element. In this example, the piercing element and the release bolt are thus guided in separate recesses in the cage and can act on one another depending on the relative position.
    Preferably, the trigger pin is biased in the first bolt position on the second clamping element, for example. Against the housing, the release bolt is preferably spaced parallel to the base body and lines of movement of the release bolt between the first and second pin position and the piercing between the clamping position and the piercing position substantially parallel or at an angle to each other. Then, the transverse opening with the inserted main blocking element connects the two recesses, wherein the trigger pin is in operative connection with the main blocking element in such a way that when triggered, i. upon displacement of the bolt, the main blocking element emerges from the engagement recess and so the piercing movement is released, the locking device has thus been unlocked. Here, the release bolt by its displacement, eg. By its withdrawal, simply create space for moving the main blocking element or the release bolt can pull the main blocking element or related further blocking elements from the displacement of the main blocking element or poke. The main blocking element and the engagement recess are in this case preferably designed such that the main blocking element is automatically pressed out of the engagement recess by the pressure of the prestressed piercing element. This can be realized, for example, by contiguous inclined surfaces between the engagement recess and the main blocking element, wherein the inclined surfaces are at an angle to the piercing movement.
    In a further embodiment of the piercing unit, the engagement recess is arranged on the cage and directed substantially transversely to the piercing, wherein the piercing element at one of the piercing tip distal end portion has a substantially extending in the direction of the piercing into the piercing central recess. The release bolt is slidably mounted in this blind central recess. Here, the piercing element has a passage opening from the central recess substantially transversely to the tapping movement outwards into the engagement recess of the cage. The main blocking element is displaceably mounted in this passage opening. Further, the engaging in the engagement recess main blocking element is blocked at the release bolt in the second bolt position and released upon actuation of the trigger mechanism for transverse displacement from the engagement recess through the through hole by overrunning the release bolt from the second bolt position in the first bolt position, so that the piercing element for performing the piercing free is.
    In this embodiment, the release bolt is thus not performed separately from the piercing element in the cage, but directly in the hollow body piercing element itself. This allows a reliable and compact axial structure.
    Preferably, the trigger pin is biased in the first pin position via a third clamping element, wherein the trigger pin is at least partially disposed in the central recess and lines of movement of the trigger pin between the first and second pin position and the piercing between the clamping position and the piercing position substantially run parallel.
    In the examples mentioned above, one or more further, arranged in a row guided and preferably loosely abutting blocking elements can be arranged far from an engagement side of the main blocking element in the engagement recess. Thus, a mobility between these elements can be used and an extension of the blocking element is extended. Preferably, at least two adjacent ones of the array of elements formed in the array formed from the main blocking element and the one or more further blocking elements are formed in a mutual contact area round, preferably spherical, in particular as a complete sphere.
    The main blocking element is then so far away from the engagement recess on a further blocking element. Now, this or a blocking member disposed adjacent thereto can be pulled out of the row by the release bolt, lifted or pushed to provide the main blocking member with the space to extend out of engagement. The retracted or advanced pin can also easily create the clearance, e.g. through a lateral recess.
    In a preferred example, the trigger pin in the second pin position surrounds the engaging in the engagement recess main blocking element and / or another blocking element preferably such that upon actuation of the trigger mechanism this engaged locking member for releasing the engaged main blocking element from the series or is depressible.
    It is also conceivable that the release bolt in the second pin position blocking the engaging in the engagement recess main blocking element, possibly via another of the said blocking elements. Then, by simply moving the bolt, the row of blocking elements can be made room to cancel the detection of the piercing member on the cage for piercing the accumulator.
    The present invention also relates to a tapping unit as described above, which comprises a cartridge or a pressure medium reservoir, wherein the pressure medium reservoir preferably comprises a detachably attachable cap, which cap in a recess in the connecting portion of the housing for connecting the pressure medium reservoir covered with the cap with the connecting portion einfuhrbar and there is detectable and which has a cage strike at a far end of the accumulator memory end, wherein the cage comprises a cap stop for contact with the Käfiganschlag.
    Moreover, the present invention relates to an avalanche airbag system or lifejacket with a tapping unit as described above.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Preferred embodiments of the invention are described below with reference to the drawings, which are merely illustrative and not restrictive interpreted. Like reference numerals designate like or equivalent elements. In the drawings show:<Tb> FIG. 1 <SEP> is a bottom view of a cartridge for a piercing unit according to a first embodiment;<Tb> FIG. 2 <SEP> is a section A-A through the piercing unit of the first embodiment in a loaded and locked state and placed on the cartridge of FIG. 1;<Tb> FIG. FIG. 3 shows a section B-B through the piercing unit in the loaded and blocked state according to FIG. 2 with the cartridge inserted; FIG.<Tb> FIG. 4 shows an enlarged detail of the tapping unit according to FIG. 2 in the loaded and blocked state;<Tb> FIG. 5 shows a section A-A through the piercing unit according to FIG. 2 in the loaded and unblocked state and with the cartridge inserted;<Tb> FIG. 6 shows a section D-D through the piercing unit according to FIG. 5 in the loaded and unblocked state and with the cartridge inserted;<Tb> FIG. 7 shows a section A-A through the piercing unit according to FIG. 2 in the released state and with the cartridge inserted;<Tb> FIG. FIG. 8 shows a section F-F through the piercing unit according to FIG. 7 in the released state and with the cartridge inserted; FIG.<Tb> FIG. 9 shows a section A-A through the piercing unit according to FIG. 2 in the released and blocked state and with the cartridge removed;<Tb> FIG. FIG. 10 shows a section H-H through the piercing unit according to FIG. 9 in the released and blocked state and with the cartridge removed; FIG.<Tb> FIG. 11 <SEP> is a bottom view of a cartridge with an attached piercing unit according to a second embodiment;<Tb> FIG. 12 <SEP> is a section A-A through the piercing unit of the second embodiment in a loaded and locked state and placed on the cartridge of FIG. 11; and<Tb> FIG. 13 <SEP> an enlarged section of the piercing unit according to FIG. 12 in the loaded and blocked state.
    DESCRIPTION OF PREFERRED EMBODIMENTS
    Preferred embodiments will now be described with reference to FIGS. 1 to 13.
    Fig. 1 shows a pressure fluid reservoir 6 in the form of a pressurized gas cartridge 6 from below. This gas cartridge 6 may be a CO2 cartridge.
    FIG. 2 shows a longitudinal section A-A through the gas cartridge 6 shown in FIG. 1 filled with a pressure medium 7. The cartridge 6 is provided with a cap 5. About this cap 5, the cartridge 6 is connected to a tapping unit 1 according to a first preferred embodiment. The piercing unit 1 has a housing 11 and is shown in a loaded and blocked state. The piercing unit 1 has a pretensioned piercing element 2 and a triggering mechanism 4 with a pretensioned release bolt 42. The release pin 42 is displaceably mounted in the piercing element 2. The piercing element 2 is mounted in a cage 3 mounted displaceably in the housing 11. The trigger mechanism 4 can be actuated via a pull cable 45 for the purpose of piercing the gas cartridge 6, wherein the actuation of the prestressed piercing element 2 is released for piercing.
    Fig. 3 shows a 90 ° twisted longitudinal section B-B through the tapping unit 1 and the cartridge 6 of FIG. 2nd
    5 and 6 show the piercing unit 1 according to FIG. 2 in the loaded and unblocked or unlocked state and with the cartridge 6 inserted therein. FIGS. 7 and 8 show the tapping unit 1 according to FIG. 2 in the released state and with the cartridge 6 inserted 9 and 10 show the tapping unit 1 according to FIG. 2 with the cartridge 6 removed.
    Fig. 4 shows the tapping unit 1, which has the outer housing 11 of substantially cylindrical cross-section. The housing 11 defines an interior III which extends upwardly in Figs. 2-10, i. in the proximal direction of the tapping unit 1, is closed by a housing cover 112. The inner space 111 extends away from the cover 112 with a constant cylindrical cross-section in the distal direction up to a cross-section radially restricting stage 115. This step 115 surrounds the housing 11 inwardly projecting into the inner space 111 and thus provides a proximal, ie against the cover 112 directed stop surface 116. The step 115 is formed as an annular circumferential rib and accordingly provides a proximal abutment surface 116 opposite distal abutment surface 117 ready. The two abutment surfaces 116, 117 are transverse to a longitudinal direction L, along which the tapping unit 1 and the accumulator 6 extend. The inner space 111 extends distally further, between radially inner end surfaces 118 of the step 115, then expands to form the said distal abutment surface 117 on the original cross section and ends in a distal receptacle 119 at the distal end of the housing 11th
    This distal receptacle 119 thus extends from the distal end of the housing 11, the connecting portion 110, in the proximal direction against the cover 112 to the distal abutment surface 117 of the step 115. The receptacle 119 is formed substantially complementary to the cap 5 and serves as a chamber for receiving the cartridge 6 or the cap 5.
    Laterally in the connecting portion 110 a transversely outwardly extending through hole 9 is provided, which excludes a portion of the step 115 and a portion of the distal receptacle 119 surrounding wall of the connecting portion 110 and the receptacle 119 connects to the outside of the housing 11. This through-bore 9 serves as an outlet for pressure medium 7 escaping from a pierced cartridge 6 (see Fig. 7), which is supplied via the outlet 9 to a further intended use, for example the inflation of an airbag or a vest.
    In the proximal portion of the interior 111, ie in front of the annular step 115, the release mechanism 4 with the release pin 42, the piercing element 2 and the cage 3 are housed. In this case, the trigger pin 42 is surrounded by the piercing element 2 and the tapping element 2 by the cage 3. The three elements 42, 2, 3 are arranged concentrically or axially relative to each other and displaceable relative to each other along the longitudinal axis L; They also each have a proximal and a distal end.
    Between the housing cover 112 and the proximal end portions of the elements 42, 2, 3 is in each case a compression spring 41, 21, 31 arranged in the housing 11, which biases the respective element 42, 2, 3 in the distal direction against a corresponding proximal stop ,
    The cage 3 is thus displaceably mounted in the interior III and on a longitudinal inner side of the housing 11, which bounds the interior space 111 laterally stored. The cage 3 is piston-like displaceable in the housing 11 acting as a cylinder and has a proximal cage section and a contact section 304 of limited diameter adjoining distally thereon; this cross section is reduced via a step 300. Near its proximal end, the proximal cage section has two cage slots 307, which lie opposite one another transversely to the L-axis and extend proximally along L in the distal direction to approximately half the height of a first cage section (see Fig. 3). The cage 3 has further peripherally on its outer side, near a distal end of the proximal cage portion and proximal of the step 300, a circumferentially bypassing groove 32 into which a sealing ring (not shown) for gas seal between cage 3 and housing 11 can be inserted. There may be provided more such seals. The step 300 provides a distal (ie, distally oriented) stop 303 for abutment with the proximal stop 116 of the step 115 of the housing 11.
    The cage 3 has a longitudinally extending along the longitudinal axis L, centrally arranged, axially continuous receiving space 301 for receiving the piercing element 2. The receiving space 301 opens into a proximal opening at the proximal, hollow-cylindrical-shaped end of the cage 3. The receiving space 301 has a diameter in the region of the first cage section which narrows peripherally via a conical narrowing 308 arranged distally to an edge 310 and distally to the step 308 in the region of the contact portion 304 again in the form of a straight cylinder against or into the receptacle 119 extends. The inclined step or restriction 308 is disposed at the level of the step 300.
    The free end portion of the proximal end of the first cage portion terminates with a flat end face 302 which provides the stop for the cage spring 31. The compression spring 31 is clamped between the cover 112 and the end face 302. The free end portion of the distal end of the contact portion 304 has a flat end face 305 as a cap stopper.
    The cage spring 31 presses the second clamping element, the cage 3 against the proximal stop 116 of the stage 115 when no cap 5 is inserted (see Fig. 9 and 10). When the cap 5 is inserted (as shown in FIGS. 2 to 8), the cage 3 abuts with the cap stopper 305 against the cage catch 59 of the cap 5 and the cage spring 31 is maximally compressed, ie the cage 3 in its most proximal position near the lid 112 This position is referred to as the first cage position.
    In the first cage position, the cage spring 31 is thus biased. If the cage 3 is not blocked by the cap 5, then the cage spring 31 pushes the cage 3 distally from the first cage position to the abutment of the distal stop 303 of the cage 3 on the proximal stop 116 of the step 115 in the housing 11; the cage 3 is then in the second cage position. The second cage position is the most distal position, that is, the position of the cage 3 in the housing 11, which is closest to the cover. the cage spring 31 is maximally relaxed with the cage 3 located in the second cage position, that is to say the pretension is the lowest. The cage 3 is thus displaceable along the longitudinal axis L back and forth under bias of the cage spring 31 in the housing 11. If the cage 3 is moved in the proximal direction, work must be done against the spring 31, if the cage 3 is cleared of the path in the distal direction, the spring 31 automatically moves the cage 3 in the distal direction.
    The contact portion 304 protrudes distally between the step 115 against and into the distal receptacle 119. The contact portion 304 has a cross-section, which is the left through the step 115 radially open gap within the peripheral end face 118 substantially fills. A height of this nozzle-shaped tube-like section 304 is selected such that when the cage 3 is arranged in the second cage position, the contact section 304 projects beyond the step 115 in the distal direction by approximately one height of the step 115 (see FIGS. 9 and 10). Here, the dimensions are selected so that by pressing the portion 304 in the proximal direction by performing work against the force of the compression spring 31 to be compressed, the cage 3 can be brought from the second to the first cage position, wherein the first cage position is achieved when the Käfiganschlag 59 or the cap stopper 305 with the distal stop 117 of the stage 115 are substantially aligned. As a result, therefore, the cage 3 can be transferred from the second cage position into the first cage position by pressing on the cap stopper 305, the cage 3 automatically being pushed back into the second cage position when the pressurization of the cap stop 305 by the cage spring 31 disappears Cage 3 is not blocked by the triggering mechanism 4 (see below).
    In the distal receptacle 119, an insert 8 is inserted or screwed in via a thread 82. The insert 8 limits the clear width of the distal receptacle 119 in the transverse direction to L, so that the cap 5 is tightly receivable. The insert 8 extends in the proximal direction substantially to the distal stop 117 of the step 115 and has a center in the middle in the L-direction through bore 80. A diameter of the bore 80 is selected such that the contact portion 304 of the cage 3 located in the second cage position protrudes into the bore 80 from the proximal end without wall contact with the insert 8. In this bore 80 also from the distal end of the cap 5 for contact with the cage 3 can be inserted, the geometry is dimensioned so that the inserted cap 5 approximately half way Einführweg contacted the cap stopper 305 and upon further introduction of the cap 5 of the cage 3 is pressed from the second cage position against the spring 31 in the first cage position, wherein the cage 3 reaches the first cage position when the cap 5 is fully inserted into the insert part 8 and the distal receptacle 119. The cage 3 is then guided by the housing 11 between the compressed cage spring 31 and the cap 5 is clamped.
    At the distal end of the bore 80, ie in the distal mouth region of the insert 8, radially inwardly projecting locking lugs 81 are mounted, which can be locked with corresponding recesses 54 of the cap 5 to secure the fully inserted cap 5. The cap 5 has in the cap bottom 58, the central opening 53, wherein pressure medium 7 can escape with inserted and pierced cartridge 6 only through this opening.
    The cage 3 surrounds the piercing element 2 on the circumference and, due to the coaxial construction, accommodates both the piercing element 2 and the triggering mechanism 4 surrounded by the piercing element 2 with the locking device 47. The locking device 47 is provided for relative detection between the cage 3 and piercing element 2.
    The piercing element 2 has a grand body 20, which is designed substantially hollow cylindrical. At a distal end, the base body 20 has a piercing tip 202, which is shaped as a tapered mandrel with a tapered cross section. The main body 20 with needle 202 is thus formed as a piercing. The main body 20 has at a proximal end a maximum diameter, which substantially corresponds to the inner diameter of the receiving space 301 in the region of the first cage section. Approximately halfway along the longitudinal direction L of the main body 20, its outer diameter tapers uniformly in an oblique step 207 (see Figures 7 and 8). The oblique step 207 of the main body 20 corresponds to the conical constriction 308, so it is formed opposite. Towards the distal end, the remainder of the base body 20 then extends with a constant, reduced radius, which substantially corresponds to the inner radius of the receiving space 301 in the region of the contact section 304. The main body 20 is thus formed substantially complementary to the receiving space 301.
    The main body 20 can be reciprocated like a piston in the cage 3, between the spring pressure of the second compression spring 21, the needle spring 21, which acts as a first clamping element, and the stop of the step 207 of the body 20 on the conical constriction 308 and a guide element 210 on a stop 109 of the housing 11 (see below).
    The cage 3 in its stepped formation (outer stage 300 and inner conical constriction 308) forms with the housing 11 (stage 115) and the piercing element 2 (stage 207) a kind of labyrinth seal. There may be more grooves with sealing rings or similar sealing means may be provided.
    The base body 20 has at its proximal end 203 on a flat stop surface on which the needle spring 21 and the first compression spring 21 acts. The piercing element 2 is therefore movable back and forth between a tensioning position, the most proximal position with maximum compression of the needle spring 21, and a most distal position, the piercing position.
    The piercing position is defined by engagement portions 210 projecting transversely at the proximal end portion of the base body 20 and guide grooves 108 extending parallel to the L direction in the housing 11 and the abutment of the step 207 at the constriction 308 (see Figures 3, 6). The engagement portions 210 engage through the cage slots 307 in the guide grooves 108, whereby the body 20 is guided in the housing 11 in the L direction (see Fig. 3). The guide grooves 108 end in the distal direction to provide a distal stop 109. The height of the stop 109 or dimensions of the engagement portions 210 in the L direction are selected so that the piercing element 2 in the piercing position defined thereby the optimum height for piercing the cartridge inserted 6 and remains there, even if the cage 3 is pressed in the removal of the cap 5 from the first cage position in the second cage position, which is possible because the slots 307 allow such a return of the cage 3 despite 109 engaging engagement portions 210. As soon as the cage 3 is then in the second cage position, it is automatically locked with the piercing element 2 which is present in the piercing position on the stop 109. Thus, then the piercing tip 202 is safely withdrawn in the cage 3, so that accidental piercing of the pressure fluid reservoir 6 is avoided.
    In the tensioning position, the base body 20 under biased needle spring 21 is located in the receiving space 301 such that the step 207 and the conical constriction 308 are spaced from one another (see FIGS. 2 and 3). About a tapping movement of the base body 20 is then in the receiving space 301 in the distal direction by the needle spring 21 piston-like in and relative to the stationary fixed to the cap 5 cage 3 abruptly until this stage 207 is present at the conical constriction 308 or the engaging portions 210 on the housing stop 109th in the grooves 108 abut stops 109 (see Fig. 7 and 8). The needle spring 21 performs when triggered trigger mechanism 4, i. with dissolved locking device 47, the piercing 2 abruptly along the piercing into the piercing, so that the piercing tip 202 an inserted CO2 cartridge 6 abuts and dissolves pressure means 7 for the transition in the outlet 9. By performing work against the needle spring 21 of the main body 20 is then brought back into the clamping position. This is achieved by transferring the cage 3 from the second cage position into the first cage position, since the base body 30 is fixed in piercing position on the cage 3 in the second cage position by the locking device 47 and is thus carried along with the cage 3.
    The base body 20 also has a central recess 204 which extends centrally from the proximal end of the main body 20 in the longitudinal direction L into the base body 20. The recess 204 extends substantially over the entire length of the main body 20 to the tip 202; the central recess 204 is designed as a blind hole, in the central recess 204 of the release bolt 42 is slidably disposed.
    The triggering mechanism 4 engages with the trigger pin 42 in the depth of the central recess 204 of the piercing element 2. Here, the central recess 204 centrally in the longitudinal direction L to a tapered step 205, which tapers the central recess 204 in the distal direction. The central recess 204 is thus provided as a two-stage bore (similar to the receiving space 301). The trigger pin 42 is formed correspondingly complementary to this two-stage bore and fills the central recess 204 at full engagement substantially. In this case, a length of the release bolt 42 is selected such that at full engagement of the release bolt 42 to the depth of the central recess 204 of the base body 20 is slightly surmounted by the release bolt 42 proximally. Moreover, the release bolt 42 has at its proximal end a recess 44 extending in the distal direction, in which the pull cable 45 is inserted and carried on the depth of the pull cable 45 through a hole through the release bolt 42 towards the end and just there with a in a Blind hole mounted counter element 46 is screwed.
    The base body 20 has near its proximal end a through opening 201, which is part of the locking device 47. The through-opening 201 connects the central recess 204 with the outer region of the main body 20 as a radial through-bore. A main blocking element 40 is mounted so as to be radially displaceable in this through-opening 201. The main blocking element 40 is also part of the locking device 47 and protrudes on both sides beyond a wall of the main body 20. In the distal region of the tripping bolt 42, a transversely directed bolt recess 421 is arranged, which can partially receive the transversely displaceably mounted main blocking element 40 by engagement, so that the main blocking element 40 no longer protrudes beyond the main body 20 to the outside. The main blocking element 40 is thus mounted radially displaceably in the recess 201.
    Here, a length of the main blocking element 40 is selected such that it protrudes at a proximal portion of the bolt 42 proximal the Bolzenausnehmung 421 when the bolt 42 is in the second bolt position and at the same time protrudes radially from the through hole 201 on the base body 20 and engages in a the base body 20 facing and correspondingly aligned engagement recess 306 in the proximal end portion of the cage 3 (see Fig. 4). The main blocking element 40 tapers in the direction of the engagement recess 306, i. in the radial direction, on the proximal and the distal side. In other words, the main blocking element 40 is tapered or rounded or bevelled in the direction of the engagement recess 306.
    About these inclined surfaces of the spring pressure along L is partially redirected to a radial pressure from the cage 3 for the displacement of the element 40. The engagement recess 306 is thus formed complementary to the member 40, so that the pressure of the needle spring 21 is deflected in a pressure on the main blocking member 40 in the radial direction towards the center and the main blocking member 40 is pressed against the release pin 42. If the main blocking element 40 now abuts against the proximal end region of the release bolt 42, the cage 3 and the piercing element 2 are mechanically engaged and wedged via the blocking element 40 (see FIG. The cage 3, despite the pressure of the cage spring 31 and the pressure of the needle spring 21 via the blocking element 41 and the pressure of the bolt spring 41 on the Bolzenanstoss on the depth of the central recess 204 due to the inserted cap 5 does not move in the distal direction and the piercing element 2 is so found on the cage 3.
    The bolt spring 41 or third compression spring 41 is inserted into the recess 44 of the release bolt 42 and clamped in a corresponding recess 113 of the cover member 112 of the housing 11. By this arrangement, the release bolt 42 is biased by the pressure spring 41 engaging in it, which presses against the lid member 112 soft. The release bolt 42 is in the second bolt position when the bolt spring 41 is relaxed and the bolt 42 abuts the depth of the central recess 204. By pulling the pull cable 45, the bolt 42 can be lifted against the bolt spring 41 from the depth of the central recess 204 in the first bolt position.
    In the first bolt position, the bolt spring 41 is compressed and the laterally directed against the through hole 201 Bolzenausnehmung 421 is raised from the central recess 204 in the proximal direction up to the height of the through hole 201 and aligned so that it releases the main blocking element 40 (s FIGS. 5 and 6).
    Thus, when the triggering mechanism 4 is actuated, i. E. pulled on the pull cable 45, so the locking device 47 rises by the bolt located in the second pin position 42 moves under the action of work against the force of the bolt spring 41 in the proximal direction in the first pin position and the main blocking element 40 is released radially. The bolt recess 421 is arranged and dimensioned such that when the bolt 42 reaches the first bolt position (see Fig. 5), the bolt recess 421 is aligned with the through hole 201 and the compression spring 21 the main blocking member 40 due to the beveled radially outer tip, in particular due to the distal inclined surface into which pin recess 421 presses. Thus, the cage 3 and the base body 20 are mechanically decoupled, since the main blocking element 40 is pushed out of the engagement recess 306 (see Fig. 5). The tapping unit 1 is in the unblocked and charged state. The needle spring 21 can then shoot the puncture element 2, which is now freely displaceable in the distal direction, against the cartridge 6. Meanwhile, the cage 3 remains blocked by the cap 5 in the first cage position. The piercing element 2 is thus shot relative to the cage 3 and housing 11 in the piercing position and passes through the tapered conically in the distal direction opening 53 in the cap base 58, breaks through a cover 63 of the container 6, thus opening the held in the cap 5 cartridge 6 to the solution of the pressure means 7 (see Fig. 7 and 8) and comes with engagement portions 210 to stop the stop 109 of the housing eleventh
    Pressure medium 7 then flows through the perforations introduced into the pressure medium reservoir 6 via the cap 5 through passage openings 3041 (see Fig. 8) in the contact section 304 into the outlet 9 for further use. Preferably, a plurality of passage openings 3041 are provided on the circumference, and an annular space or an annular gap around the contact portion 304 may be left free, which completely fills the periphery with pressure medium and thus supplies gas to the outlet 9.
    The pull cable 45 can now be relieved. Then the bolt 42 is again pressed by the spring 41 against the depth of the central recess 204. The beveled formation of the proximal step of the bolt recess 421 and the complementarily beveled radially inward proximal surface of the main blocking element 40 (or another blocking element, see below) push the bolt 42 outwardly of the main blocking element 40 with its tip against the cage 3. However, since the cage 3 is in the first cage position, the piercing member 2 is in the piercing position, the engagement recess 306 and the through hole 201 are out of alignment and the main blocking member 40 simply pushes radially outward onto the inner wall of the cage 3 without entering the engagement recess 306 to intervene.
    After triggering, the empty cartridge 6 together with the cap 5 can now be removed. By this removal, the blockage of the cage 3 is lifted in the distal direction. The cage 3 is due to the release by the removed cap 5 the pressure of the cage spring 31 and shifts in the distal direction against the second cage position. In this case, the cage 3 thus shifts relative to the piercing element 2, which is fixed with respect to the housing 11, in the receiving space 301 in the distal direction until the through hole 201 of the stopper 109 blocked body 20 and the engagement recess 306 are aligned and the bolt spring 41, the main blocking element 40 for engagement in the engagement recess 306 abuts and the bolt 42 again sets to the depth of the central recess 204 in the second bolt position to stop on the base body 20. Hereby, the mechanical coupling between the cage 3 and piercing element 2 is restored. The tapping unit 1 is now securely locked and ready to receive a new cartridge 6 with a cap 5 (see Figures 9 and 10).
    The cap 5 has a cap body 50, which is provided with a recess 51, in which a neck portion 61 of the pressure vessel 6 can engage. The cap 5 covers the free end of the neck portion 61 to all sides and has at the free end of the conical passage opening 53, which widens against the container 6. This conical passage opening 53 is arranged centrally in the cap base 58 and serves to guide the piercing tip 202 for the purpose of piercing a cover of the pressure bottle 6. The cap 5 has on the outside of the bottom 58 the stop face 59 for contact with the contact section 304 of the cage 3. Moreover, the cap 5 has a flange 56 which has a stop surface directed against the housing 11 for abutting a distal end of the housing 11 or of the insert part 8. The cap 5 has the flange-side, radially outwardly directed latching recesses 81 for the engagement of the latching lugs 81. In order to connect now the pressure bottle 6 and the tapping unit 1, first the cap 5 is screwed onto the pressure bottle 6 and then the pressure bottle 6 is introduced with the cap 5 forwards into the distal receptacle 119 of the housing 11. The engagement of the bottle 6 in the cap 5 is realized and stabilized, for example, by the latching mechanism and / or a threaded engagement. The bottle 6 and cap 5 can be inserted or screwed into the distal receptacle 119. In this case, the cap 5 then pushes after contact the contact portion 304 on the stop surface of the cap bottom 58 in the proximal direction and thus the cage 3 from a second cage position in a first cage position. Here, the compression springs 31, 21, 41 are biased.
    After removing the used Kaitusche 6, a new cartridge 6 can be introduced with cap 5 in the distal receptacle 119. Here, the cage 3 is lifted by abutment of the contact portion 304 as described above from the second cage position against the first. Due to the mechanical, positive fit produced via the main blocking element 40 coupling between the cage 3 and the piercing element 2, the piercing element 2 pushes under compression of the needle spring 21 back into the clamping position. Likewise, the bolt spring 41 is tensioned. As soon as the cap 5 has been completely inserted and correctly positioned, the cage 3 is in the first cage position, the piercing element 2 in the tensioned position and the pin 42 in the second pin position and the tapping unit 1 is ready for use.
    Preferably, the housing 11, the cage 3 and the release bolt 42 are made of plastic, while the insert 8 and the base body 20 are formed of metal, preferably of aluminum.
    By simply replacing a spent cartridge 6 so the piercing unit 1 is automatically brought into readiness for a new triggering.
    The second embodiment of the present invention will now be described with reference to FIGS. 11 to 13.
    Fig. 11 shows a longitudinal section A-A through second embodiment of the tapping unit 1. The cartridge 6 is also here with the cap 5 (as described above) provided. About this cap 5, the cartridge 6 (as described above) connected to the tapping unit 1. This piercing unit 1 has a triggering mechanism 4, which can be triggered by a pull cable 45 for the purpose of piercing the gas cartridge 6.
    FIGS. 12 to 13 show the second embodiment of the tapping unit 1 according to the invention in a sectional view. FIG. 12 shows the piercing unit 1 in a loaded or tensioned state, FIG. 13 shows an enlarged detail of the piercing unit 1 according to FIG. 12.
    In the first embodiment described above, the cage 3, the piercing element 2 and the release bolt 42 are mounted concentrically with each other. In the second embodiment, the housing 11 and the cage 3 are now designed so that the release bolt 42 is mounted parallel to the main body 20 in the cage 3. In the second embodiment, the main blocking element 40 is not mounted in the main body 20 but in the cage 3, namely in a transverse opening 309. The main body 20 has a lateral engagement recess 209 for the engagement of the main blocking element 40. The release bolt 42 has a distal recess 421 and is clamped by the bolt spring 31 against the cover member 112 of the housing 11. In order to fix the bolt spring 31, a pin 311 is provided which projects from the cover element 112 against the bolt 42 or the cage 3. The coil spring 31 is clamped on this pin 311 and thus biases the bolt 42.
    Since the bolt 42 abuts with its distal end on the cage 3, it is in the second bolt position and presses the bolt spring 31 acting as a cage spring and the cage 3 from the first cage position against the distal second cage position. In the second embodiment, therefore, the second and third clamping element is combined, so that both the cage 3 and the bolt 42 are biased by the same spring 31.
    In turn, the bolt 42 distally has a bolt recess 421 directed against the blocking element 42. If the bolt 42 is in the second bolt position as in FIG. 13, the bolt recess 421 lies distal to the transverse opening 309 and the main blocking element 40 abuts against the proximal portion of the bolt 42. The cage 3 and the piercing element 2 are fixed to each other.
    Now, if the guided through the pin 311 in the bolt 42 and fastened there traction cable 45 is pulled, the bolt 42 is pulled from the second pin position of the cage 3 still up in the first pin position. In this case, the bolt recess 421 is lifted to the height of the transverse opening 309, whereby the main blocking element 40 is given room for extension out of the engagement recess 209. Thus, the needle spring 21 can push the main blocking element 40 into the bolt recess 421 via the inclined surface contact and the determination between the piercing element 2 and the cage 3 is canceled. Hereupon, the piercing element 2 can shoot from the tensioning position according to FIG. 13 into the piercing position, as described above, and open the pressure medium reservoir 6.
    In addition, in FIG. 13, the compression spring 31 acts so that the cage 3 rests on the cap 5, as described above. If now the accumulator 6 is removed, the spring 31 presses the cage 3 via the bolt 42 in the second cage position, ie in the most distal cage position. Since the bolt 42 with the inclined surface, which leads into the recess 421, the main blocking member 40 presses against the body 20 and the relative position between the body 20 and cage 3 in the second cage position is such that the engagement recess 209 and the through hole 309 are aligned , the spring 31 pushes the main blocking element 40 back into the engagement recess 209 and the cage 3 and the piercing element 2 are locked again.
    By inserting a new container 6 with cap 5, the cage 3 is guided with the piercing element 2 detected thereon again in the first cage position, wherein the piercing element 2 is transferred under tension of the needle spring 21 in the clamping position, as described above. The tapping unit 1 is then ready for a new release.
    The triggering mechanism 4 and the locking device 47 may moreover comprise, to the main blocking element 40, one or more additional blocking elements 46, which may be mounted in a row in the passage opening 201 or the transverse opening 309, as described above.
    In an alternative embodiment, instead of having a lateral pin recess 421, the firing pin 42 may surround at least one of the plurality, preferably four, locking members 40, 46 distally such that upon elevation of the pin 42 in the proximal direction from the second pin location Bolt spring 41 in the first pin position a blocking element 46 is lifted in the distal direction from the transverse to L extending row. This shortens the total length of the row of blocking elements 40, 46 extending transversely to L, and the main blocking element 40 can be disengaged from the cage 3 (first embodiment) or engaging recess 209 at the engagement recess 306 by corresponding pressurization of the inclined surfaces as described above Base 20 (second embodiment) soft. Advantageously, the liftable and preferably at least one, more preferably both immediately adjacent blocking elements 40, 46, if any, are round, preferably spherical in shape. As a result, the lifting of the one blocking element 46 is facilitated by avoiding sliding friction via acting rolling friction.
    LIST OF REFERENCE NUMBERS
    [0087]<Tb> 1 <September> puncturing<Tb> 11 <September> Housing<Tb> 108 <September> guide<Tb> 109 <September> stop<Tb> 110 <September> connecting portion<Tb> 111 <September> Interior<Tb> 112 <September> cover element<Tb> 113 <September> recess<Tb> 115 <September> Level<tb> 116 <SEP> Proximal stop surface of 115<tb> 117 <SEP> Distal stop area of 115<tb> 118 <SEP> face area of 115<tb> 119 <SEP> Distal recording<Tb> <September><Tb> 2 <September> piercing<Tb> 20 <September> body<Tb> 201 <September> through opening<Tb> 202 <September> puncture tip<tb> 203 <SEP> Proximal end<Tb> 204 <September> central opening<Tb> 205 <September> Level<Tb> 206 <September> stop<tb> 207 <SEP> Slanting step<Tb> 208 <September> Intermediate<tb> 21 <SEP> First compression spring<Tb> 209 <September> engagement recess<Tb> 210 <September> guide element<Tb> <September><Tb> 3 <September> Cage<Tb> 30 <September> cage body<Tb> 300 <September> Level<Tb> 301 <September> accommodation space<tb> 302 <SEP> Proximal stop<tb> 303 <SEP> Distal stop<Tb> 304 <September> contact section<Tb> 3041 <September> through hole<Tb> 305 <September> cap stop<Tb> 306 <September> engagement recess<Tb> 307 <September> cage slots<tb> 308 <SEP> Conical constriction<Tb> 309 <September> transverse opening<Tb> 310 <September> edge<Tb> 311 <September> pen<tb> 31 <SEP> Second compression spring, cage spring<tb> 32 <SEP> groove for sealing ring<Tb> <September><Tb> 4 <September> trigger mechanism<Tb> 40 <September> main blocking element<tb> 41 <SEP> Third compression spring<Tb> 42 <September> release bolt'Tb> 421 <September> bolt hole<Tb> 44 <September> recess<Tb> 45 <September> pull cable<Tb> 46 <September> counter element<Tb> 47 <September> locking device<Tb> <September><Tb> 5 <September> cap<Tb> 50 <September> cap body<Tb> 51 <September> recess<Tb> 52 <September> Thread<tb> 53 <SEP> Tapered passage opening<Tb> 54 <September> recess<Tb> 56 <September> flange<Tb> 58 <September> cap base<Tb> 59 <September> cage stop<Tb> <September><tb> 6 <SEP> accumulator, cartridge<Tb> 60 <September> container<Tb> 61 <September> neck section<Tb> 62 <September> Thread<Tb> 63 <September> cover<Tb> <September><Tb> 7 <September> pressure medium<Tb> <September><Tb> 8 <September> insert<Tb> 80 <September> Hole<Tb> 81 <September> locking lugs<Tb> <September><Tb> 9 <September> outlet<Tb> <September><Tb> L <September> longitudinal axis
    权利要求:
    Claims (17)
    [1]
    1. puncturing unit (1) for a closed accumulator (6), in particular for a cartridge of an avalanche airbag or a lifejacket, comprising:a housing (11) having a connecting portion (110) for establishing a connection to the pressure medium reservoir (6),a tensioning piercing element (2) arranged in or on the housing (11) for piercing the pressure medium reservoir (6), the piercing element (2) being movable between a tensioning position and a piercing position, anda triggering mechanism (4) having a locking device (47) for detachably detecting the piercing element (2),wherein the piercing unit (1) is designed in such a way that the tensioned piercing element (2) carries out a piercing movement from the tensioning position into the piercing position by actuating the triggering mechanism (4) while relaxing a first tensioning element (21),characterized in that the tapping unit (1) is further designed such that by the preparation of the connection of the connecting portion (110) with the pressure fluid reservoir (6) the piercing element (2) in a loading movement from the piercing position against the tapping movement under tension of the first tensioning element (21) can be converted into the clamping position, wherein the locking device (47) is arranged displaceably to the housing (11) and moves with said loading movement.
    [2]
    2. piercing unit (1) according to claim 1, comprising a cage (3) movably mounted in or on the housing (11) between a first cage position and a second cage position, wherein the piercing unit (1) is designed such that the cage (3) is determined in the first cage position connected to the connecting portion (110) accumulator (6) and the piercing element (2) is further configured such that the piercing element (2) in clamping position on the locking device (47) located in the first cage position Cage (3) detectable and at a locking device (47) releasing operation of the trigger mechanism (4) for executing the tapping movement relative to the cage located in the first cage position (3) in the piercing position is releasable.
    [3]
    3. tapping unit (1) according to claim 1 or 2, wherein the locking device (47) in or on the cage (3) is arranged.
    [4]
    4. piercing unit (1) according to any one of the preceding claims, wherein the locking device (47) is formed such that the released locking device (47) located in the piercing piercing element (2) upon solution of the compound of the accumulator (6) with the connecting portion (110) again fixes the cage (3) and the piercing element (2) to one another, the cage (3) preferably being automatically transferred from the first to the second cage position when the connection of the pressure medium reservoir (6) to the connecting section (110) is achieved ,
    [5]
    5. tapping unit (1) according to one of claims 2 to 4, comprising a second clamping element (31), wherein the second clamping element (31) is arranged and formed such that the cage (3) is biased in the first cage position, that the cage (3) upon release of the connection of the accumulator (6) with the connecting portion (110) with relaxation of the second clamping element (31) from the first cage position to the second cage position and in the preparation of the connection of the accumulator (6) with the connecting portion (110) is guided under tension of the second clamping element (31) from the second cage position in the first cage position.
    [6]
    6. tapping unit (1) according to one of claims 2 to 5, which is designed such that the cage (3) in the transition from the first cage position to the second cage position by solving the connection between the pressure fluid reservoir (6) and the connecting portion (110 ) is moved relative to the piercing element (2) located in the piercing position.
    [7]
    7. tapping unit (1) according to any one of claims 2 to 6, wherein the locking device (47) further comprises a main blocking element (40) which is movable relative to the tapping element (2) and the cage (3) and to engage in an engagement recess (209; 306) of the piercing element (2) or of the cage (3) for the determination of the piercing element (2) is alignable on the cage (3), wherein the main blocking element (40) is designed and arranged suchthat during the transfer of the cage (3) from the first cage position into the second cage position by the solution of the connection of the accumulator (6) with the connecting portion (110) of the cage (3) located in the piercing position piercing element (2) by engagement the main blocking element (40) is lockable in the engagement recess (209; 306), andin that the piercing element (2), detected by the engagement of the main blocking element (40) in the engagement recess (209; 306) on the cage (3) located in the second cage layer, passes through the cage (3) from the second cage layer into the first cage layer the production of the connection of the accumulator (6) with the connecting portion (110) under tension of the first clamping element (31) from the piercing position in the clamping position is überfuhrbar, so that then located in the clamping position piercing element (2) then in the first cage position located cage (3) by the actuation of the trigger mechanism (4) is releasably detected.
    [8]
    A piercing unit (1) according to the preceding claim, wherein the triggering mechanism (4) has a firing pin (42) movably mounted between first and second pin bosses and configured to engage the main blocking member (40) by operation of the firing pin Release mechanism (4) and Überfuhren the release pin (42) in the second pin position for retreat from the engagement recess (209; 306) is free.
    [9]
    9. puncturing unit (1) according to claim 8, wherein the piercing element (2) along the Anstechbewegung displaceable base body (20) with a piercing tip (202) for piercing the accumulator (6), wherein the engagement recess (209) in the base body (20 ) is arranged and directed substantially transverse to the piercing, andwherein the cage (3) has a transverse opening (309) substantially transverse to the piercing movement, in which the main blocking element (40) is slidably mounted transversely to the piercing movement, the main blocking element (40) engaging the engagement recess (209) upon actuation of the triggering mechanism (4) is releasable for transverse displacement from the engagement recess (209) in the transverse opening (309) by transferring the release bolt (42) from the second pin position to the first pin position, so that the piercing element (2) is free to perform the tapping movement.
    [10]
    10. tapping unit (1) according to claim 8, wherein the trigger pin (42) in the first pin position via the second clamping element (31) is biased, wherein the trigger pin (42) spaced parallel to the base body (20) is arranged and lines of movement of the trigger pin ( 42) extend substantially parallel between the first and second pin positions and the piercing element (2) between the clamping position and the piercing position.
    [11]
    The piercing unit (1) according to claim 8, wherein the engagement recess (306) is arranged on the cage (3) and directed substantially transversely to the piercing movement, wherein the piercing element (2) at a piercing tip (202) distal end portion is a substantially in the direction of the piercing movement in the piercing element (2) hineinerstreckende central recess (204), wherein the trigger pin (42) is displaceably mounted in this central recess (204),wherein the piercing element (2) has a passage opening (201) outwardly of the central recess (204) transversely to the piercing movement, wherein the main blocking element (40) is displaceably mounted in this passage opening (201), and wherein the engaging into the engagement recess (306) Main blocking element (40) on the release bolt (42) is blocked in the second pin position and upon actuation of the trigger mechanism (4) for transverse displacement from the engagement recess (306) through the through hole (201) by transferring the release pin (42) from the second pin position to the first Stud position is releasable, so that the piercing element (2) is free to perform the piercing movement.
    [12]
    12. tapping unit (1) according to claim 11, wherein the trigger pin (42) in the first pin position via a third clamping element (41) is biased, wherein the trigger pin (42) at least partially in the central recess (204) is arranged and lines of movement of the trigger pin (42) extend substantially parallel between the first and the second pin position and the piercing element (2) between the clamping position and the piercing position.
    [13]
    13. tapping unit (1) according to one of claims 7 to 12, wherein remote from an engagement side of the main blocking element (40) in the engagement recess (209; 306) one or more further, arranged in a row out and preferably loosely abutting blocking elements (46 Preferably, at least two adjacent ones of the array of elements formed of the main blocking element (40) and the one or more further blocking elements (46) are formed in a mutual contact area round, preferably spherical, in particular as a complete sphere ,
    [14]
    14. piercing unit (1) according to any one of claims 8 to 13, wherein the release bolt (42) in the second pin position blocks the main blocking element (40) engaging in the engagement recess (209; 306).
    [15]
    15. tapping unit (1) according to one of claims 8 to 14, wherein the release bolt (42) in the second pin position in such a way engages in the engagement recess (209; 306) engaging the main blocking element (40) and / or another blocking element (46), that upon actuation of the triggering mechanism (4), this engaged blocking member is liftable or depressible for releasing the engaged main blocking member (40) from the row.
    [16]
    16. tapping unit (1) according to one of the preceding claims with the pressure medium reservoir (6), wherein the pressure fluid reservoir (6) preferably comprises a releasably attachable cap (5), which cap (5) in a recess (119) in the connecting portion (110) of the housing (11) for connecting the with the cap (5) covered pressure fluid reservoir (6) with the connecting portion (110) insertable and lockable there and which at a the pressure fluid reservoir (6) far end a Käfiganschlag (59), wherein the Cage (3) comprises a cap stopper (305) for contact with the Käfiganschlag (59).
    [17]
    17. Avalanche airbag system or life jacket with a tapping unit (1) according to one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    CH710987B1|2019-01-15|
    DE102016205656A1|2016-10-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1037010A|1951-05-11|1953-09-14|Semi-automatic opening device for container containing pressurized fluid|
    EP0535299A1|1991-09-28|1993-04-07|BERNHARDT APPARATEBAU GmbH u. Co.|Inflating device, especially for a container or a float of a rescue apparatus|
    US6260570B1|1997-06-16|2001-07-17|Lloyd G. Wass|Puncture disc raft inflation valve having a one-piece valve body|
    WO2010121078A1|2009-04-15|2010-10-21|Halkey-Roberts Corporation|Manual inflator with cylinder connector and status indicator|
    WO2012063020A1|2010-11-11|2012-05-18|United Moulders Limited|Inflation device mechanism|
    NO345700B1|2018-12-14|2021-06-21|Safe Inflator As|Connecting device for connecting a compressed gas cylinder to an inflatable device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00544/15A|CH710987B1|2015-04-21|2015-04-21|Tapping unit for a closed accumulator.|CH00544/15A| CH710987B1|2015-04-21|2015-04-21|Tapping unit for a closed accumulator.|
    DE102016205656.5A| DE102016205656A1|2015-04-21|2016-04-06|CHOPPING UNIT FOR GAS CARTRIDGE|
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