EP2008693A1 - Lochwerkzeug für ein Gefäß mit komprimiertem Gas - Google Patents

Lochwerkzeug für ein Gefäß mit komprimiertem Gas Download PDF

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Publication number
EP2008693A1
EP2008693A1 EP07111219A EP07111219A EP2008693A1 EP 2008693 A1 EP2008693 A1 EP 2008693A1 EP 07111219 A EP07111219 A EP 07111219A EP 07111219 A EP07111219 A EP 07111219A EP 2008693 A1 EP2008693 A1 EP 2008693A1
Authority
EP
European Patent Office
Prior art keywords
piercer
lever
cut
piston
releasing lever
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.)
Withdrawn
Application number
EP07111219A
Other languages
English (en)
French (fr)
Inventor
Erhard Rothgangl
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP07111219A priority Critical patent/EP2008693A1/de
Publication of EP2008693A1 publication Critical patent/EP2008693A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms

Definitions

  • Subject of the invention is a piercer for a compressed gas vessel, used in systems operated by compressed gas.
  • the piercer is designed particularly for an actuator driving a smoke roof flap, which is initiated by a smoke sensor.
  • a known solution of a piercer presented in the description of the utility model PL-Y1-61502 , has a body in which there is a socket for the vessel connected through a side channel with the gas outlet socket.
  • a concentrically located striker tube with a longitudinal slot fixed to a piston, which is sliding in the piercer body and is pressed by a return spring.
  • Piercing the diaphragm covering the hole of the vessel is caused by a releasing lever which is moving in the body and slides the piston towards the vessel set in the seat.
  • the releasing lever is stopped by an additional locking lever.
  • piercer units of complex construction in which the striker is moved by e.g. the energy of a micro charge started by an electric pulse, or - like that presented in WO 98/50112 - by releasing the locked striker spring, upon deformation of a thermo-ampoule.
  • the piercer according the present invention has, like the solution described above, a body with a vessel socket connected through a side channel with the gas outlet socket.
  • the tubular striker with a longitudinal slot is fixed to the piston sliding concentrically in the vessel socket and is pressed by the return spring.
  • the releasing lever moving in the body presses the piston towards the vessel.
  • the essence of the solution consists in that the striker piston has a neck close to the end protruding out of the body, while the releasing lever has a cut-out consisting of a hole of a diameter slightly greater than the piston diameter and a notch connected with it, of a width slightly greater than the neck diameter.
  • the axis of symmetry is perpendicular to the axle on which the releasing lever is moving.
  • the neck enters into to the hole of the cut-out, and at the bottom position of the releasing lever, when the piston is in the plane of the cut-out hole, the releasing lever pressure is freed, and the lever is pushed up by the force of the return spring. The releasing lever is then blocked in its lower position by the striker piston.
  • the freeing of the releasing lever requires that the piston is moved down by hand and the neck inserted into the grove of the cut-out.
  • the piercer can be made in a version designed solely to supply the system with compressed gas - and then the side channel on the back wall of the body is being stopped by a plugging piece, e.g. a threaded or glued pin, or a pressed ball.
  • a plugging piece e.g. a threaded or glued pin, or a pressed ball.
  • the piercer can also be made in a version enabling operation in conjunction with an external valve, which vents the branch fed through the functionally coupled piercer, and which is closed at the phase of piercing the diaphragm and keeping the pressure, while opening that valve causes venting the branch.
  • the side channel in that version is open through a hole in a sleeve, which is fitted into the back wall of the body.
  • the sleeve has an external neck and a sealing O-ring set on the neck. The O-ring provides tight connection of the side channel with the surface to which the back wall of the body abuts.
  • a second control lever with a cross section in the form of a C-beam is moving on the axle set in the body.
  • the flanges (side walls) of the second control lever grasp the flanges of the releasing lever and the second lever is longer than the releasing lever.
  • the releasing lever has a protruding prong at the bottom corner of the flanges, while the web of the control lever is cut at the side of the axle on a depth at which the radius of the front edge of the cut-out in the upper wall is slightly greater than inner radius of the prong.
  • the control lever reaches with its control arm behind the back wall of the body.
  • the control arm can have a straight flange of the releasing lever or that flange can have its end bent, the end having a forked cut-out into which the perpendicularly bent end of the axle can be inserted.
  • the bent end of the axle protrudes out behind the back of the body.
  • the socket of the vessel connection is preferably not machined directly in the body, but in a sleeve set in the body. Such a make enables using a material of higher strength than the body for the zone exposed to wear.
  • Fig. 1 shows the perspective view in vertical section of the piercer version with the vessel socket made directly in the body, having the releasing level set in the upper (armed) position
  • Fig. 2 shows the vertical section of the version with the vessel socket made in an insert in the body, at the phase when the diaphragm is already pierced, with the releasing level set in the lower (locked) position
  • Fig. 3 shows the top view of the piercer with the releasing lever locked
  • Fig. 4 shows the striker with the piston
  • Fig. 5 shows the perspective view of the piercer
  • Fig. 6 shows the detail of the end of the side channel of a piercer adapted to operation in conjunction with an external valve
  • FIG. 7 shows another make of the piercer in perspective view, with the additional control lever, which is extended on the other side of the axle into an arm serving to control another external valve, e.g. a venting slide valve;
  • Fig. 8 shows the perspective view of the releasing lever of the make shown in Fig. 7;
  • Fig. 9 the perspective view of the control lever of the version shown in Fig. 7;
  • Fig. 10 shows the perspective view of another control lever;
  • the Fig. 11, 12, 13 present the consecutive operational phases of the piercer shown in Fig. 7
  • Fig. 14 shows the top view of that piercer.
  • the piston 6 is pressed by the return spring 7. Close to its end sticking out of the body 1 it has a neck "d".
  • a cut-out 10 In the upper wall of the releasing lever 8 there is a cut-out 10, the form of which consists of a hole with the diameter D1 - slightly greater than the diameter D of the piston 6 - and the notch "p", connected with the hole D1.
  • the symmetry axis of cut-out 10 is perpendicular to the axle 9 on which swings the releasing lever 8.
  • the return spring 7 is placed between the piston 6 and the stop ring 12, to which - in the make shown in Fig. 1 - adheres the sealing O-ring 14 for the gas vessel.
  • the stop ring 12 is located in the steel bush 11 constituting the vessel socket 2, screwed into the aluminum body 1.
  • Fig. 6 shows the detail of the piercer in the version suiting to vent the branch fed by the piercer through an external valve.
  • the side channel 3, at the back wall of the body 1 holds the sleeve 17, having an external neck on which the sealing O-ring 18 is placed.
  • FIG. 7 to 14 show the piercer version adapted to mechanical switching over by an external venting valve (not shown in the drawings), which is pneumatically connected with the side channel 3.
  • the second control lever 19 On the axle 9 set into the body 1 there swings the second control lever 19, the cross section of which has also the form of a channel bar, and the flanges (side walls) of which enclose the flanges of the releasing lever 8.
  • the length “L2" of the control lever 19 is longer than the length "L1” of the releasing lever 8.
  • the releasing lever 8 has prongs 20 at its bottom web edge, while the web (upper wall) of the control lever 19 is cut-out at the side of the axle 9 that far, that the external radius "r2" on the web is slightly greater than the inner radius "r1" of the prong 20.
  • the control lever 19 is extended by its controlling arm 22 beyond the back wall of the body 1.
  • the web of the control lever 19 jest extended behind the back wall of the body 1 and its end bent outwards has a forked cut-out 21.
  • the axle 9 is perpendicularly bent, forming a control arm 22 which is being inserted into the forked cut-out 21 and protrudes behind the back wall of the body 1.
  • the control arm can also be made according to Fig.10 , as a straight extension of the web of the control lever 19.
  • the gas vessel is being set in the socket 2, when the piercer 5 is its upper position, with the corresponding position of the levers 8 and 19, marked in Fig. 11 by the letter “a".
  • the neck “d” of the striker 5 is located in the notch "p" of the cut-out 10 in the web (upper wall) of the releasing lever 8.
  • a further pressure on the control lever 19 causes simultaneous moving of both levers 8 and 19, and the edges of the notch "p" press the striker 5 down, which causes its pointed tip to pierce the diaphragm of the gas vessel.
  • Lifting the releasing lever 8 is possible only upon having the piston 6 pressed down in direction of the arrow "f", when the neck "d" can be slid into the notch "p".
  • the movement of the control lever 19 corresponds with the movement of the control lever 19 occurs the movement of the control arm 22, and the movement of which from “a” to “b” can be used to switch over - before piercing the diaphragm - the external valve connected with the side channel 3 into the position "closed”.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP07111219A 2007-06-27 2007-06-27 Lochwerkzeug für ein Gefäß mit komprimiertem Gas Withdrawn EP2008693A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07111219A EP2008693A1 (de) 2007-06-27 2007-06-27 Lochwerkzeug für ein Gefäß mit komprimiertem Gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07111219A EP2008693A1 (de) 2007-06-27 2007-06-27 Lochwerkzeug für ein Gefäß mit komprimiertem Gas

Publications (1)

Publication Number Publication Date
EP2008693A1 true EP2008693A1 (de) 2008-12-31

Family

ID=38566918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07111219A Withdrawn EP2008693A1 (de) 2007-06-27 2007-06-27 Lochwerkzeug für ein Gefäß mit komprimiertem Gas

Country Status (1)

Country Link
EP (1) EP2008693A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2708830A2 (de) 2012-09-12 2014-03-19 Erhard Rothgangl Aktivierung einer Rauchabzugseinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858659A (en) 1972-09-25 1975-01-07 Hatsuta Manufacturing Co Ltd Fire extinguisher apparatus
EP0792665A1 (de) * 1996-02-27 1997-09-03 Extincteurs Andrieu Flüssigkeitszerstäubungsfeuerlöscher
GB2322298A (en) * 1997-02-20 1998-08-26 Kidde Thorn Fire Protection Li Discharge valve arrangement
PL61502Y1 (en) * 2000-07-10 2005-07-29 Rde Sarl Piercing mandrel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858659A (en) 1972-09-25 1975-01-07 Hatsuta Manufacturing Co Ltd Fire extinguisher apparatus
EP0792665A1 (de) * 1996-02-27 1997-09-03 Extincteurs Andrieu Flüssigkeitszerstäubungsfeuerlöscher
GB2322298A (en) * 1997-02-20 1998-08-26 Kidde Thorn Fire Protection Li Discharge valve arrangement
PL61502Y1 (en) * 2000-07-10 2005-07-29 Rde Sarl Piercing mandrel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2708830A2 (de) 2012-09-12 2014-03-19 Erhard Rothgangl Aktivierung einer Rauchabzugseinrichtung
EP2708830A3 (de) * 2012-09-12 2015-05-13 Erhard Rothgangl Aktivierung einer Rauchabzugseinrichtung

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