EP0751304A2 - Pneumatisches Steuerungssystem, Hebevorrichtung und Steuerungssystem für einen Schrauber - Google Patents

Pneumatisches Steuerungssystem, Hebevorrichtung und Steuerungssystem für einen Schrauber Download PDF

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Publication number
EP0751304A2
EP0751304A2 EP96401256A EP96401256A EP0751304A2 EP 0751304 A2 EP0751304 A2 EP 0751304A2 EP 96401256 A EP96401256 A EP 96401256A EP 96401256 A EP96401256 A EP 96401256A EP 0751304 A2 EP0751304 A2 EP 0751304A2
Authority
EP
European Patent Office
Prior art keywords
enclosure
cartridge
pyrotechnic
wall
cartridge holder
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Withdrawn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
EP96401256A
Other languages
English (en)
French (fr)
Other versions
EP0751304A3 (de
Inventor
Alain Grelier
Dominique Michel
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.)
Protac
Original Assignee
Protac
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 Protac filed Critical Protac
Publication of EP0751304A2 publication Critical patent/EP0751304A2/de
Publication of EP0751304A3 publication Critical patent/EP0751304A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/43—Pyrotechnical jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/35—Inflatable flexible elements, e.g. bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • F15B15/103—Characterised by the construction of the motor unit the motor being of diaphragm type using inflatable bodies that contract when fluid pressure is applied, e.g. pneumatic artificial muscles or McKibben-type actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/19—Pyrotechnical actuators

Definitions

  • the invention relates to a pneumatic control system, its application to a lifting system such as a car jack as well as its application to the control of a pneumatic screwing / unscrewing device.
  • the mechanical jack currently used on vehicles is often a source of problems with its use by inexperienced people.
  • the system of the invention provides an adaptable system as well for unlocking the wheels of an automobile as for serving as a jack for changing a punctured wheel.
  • the object of the invention is to use an inflatable enclosure.
  • French Patent Application No. 2,265,666 describes an inflatable jack, but it requires a source of compressed air to inflate the enclosure. Such a source is not available on board an automobile and this jack cannot be used as an emergency jack for a driver.
  • the invention overcomes all these drawbacks.
  • the invention therefore relates to a pneumatic control system comprising an inflatable enclosure, characterized in that the enclosure is waterproof and is made of flexible and non-elastic material, and in that it comprises, fixed in the wall of the enclosure, a cartridge holder intended to receive in a sealed manner and in a fixed or removable manner a pyrotechnic cartridge so that the pyrotechnic charge is directed towards the interior of the enclosure.
  • This system is therefore applicable to a car jack.
  • the invention is applicable to a control system of a screwing / unscrewing device, characterized in that it also comprises, fixed in the wall of the enclosure, a mounting ring intended to receive in leaktight manner and fixed or removable way an outlet conduit connectable to the pneumatic control input of a pneumatic screwing / unscrewing device.
  • This system includes an enclosure made of flexible material and as gas tight as possible.
  • the wall of the enclosure has an access with, sealed, a pyrotechnic cartridge or a cartridge holder. It is capable of receiving a fixed or removable pyrotechnic cartridge.
  • the pyrotechnic cartridge mounted in the wall of the enclosure has an electrical connection system accessible from outside the enclosure and making it possible to cause an electrical spark in the cartridge by injection of a current, which triggers the ignition of the pyrotechnic powder charge.
  • the cartridge has a opening towards the interior of the enclosure.
  • the evolution of gas which occurs causes the inflation of the enclosure as shown in FIG. 1b.
  • the enclosure being made of non-elastic material, it acquires an appearance of rigidity with sufficient pressure. It can therefore be used for two possible functions either as a device to exert a force or as a reserve of compressed gas.
  • the first function will be applied in the description which follows in an elevator system and the second function will be applied in a screw / unscrew system.
  • a cartridge holder 3 is sealed in the wall of the enclosure 1.
  • the cartridge holder 3 is sealed in a reinforced area 30 of the enclosure.
  • a pyrotechnic cartridge instead of having a cartridge holder sealed in the wall of the enclosure, provision may be made for a pyrotechnic cartridge to be directly sealed.
  • the speaker can only be used once.
  • the cartridge holder 3 comprises means for mounting a pyrotechnic cartridge in a sealed manner.
  • the cartridge holder is then adapted to the cartridge 10 which it is to receive.
  • the mounting can be screw or snap-on and sealing can be done using seals such as O-rings.
  • the enclosure 1 has non-slip surfaces 2 intended to be in contact with the load to be lifted and the support piece (the ground in the case of a car jack). These non-slip surfaces can simply consist of a band surrounding the enclosure 1. In this way, by providing for the enclosure 1 an oval or cylindrical shape when it is inflated, the user can place the enclosure under the load to be lifted without being concerned with the orientation of the enclosure around the axis XX '.
  • the enclosure 1 can also be provided with a stand 4 which is connected at an upper point of the enclosure when it is inflated. So when the user inflates the enclosure, the stand 4 will be placed automatically vertically under the load so that in the event of an incident (deflating the enclosure), the lifted load is kept lifted by the stand.
  • the reinforced zone comprises a mounting ring 31 fixed in a sealed manner.
  • This mounting ring makes it possible to connect a screwdriver / unscrewer device with pneumatic control 6 using a conduit.
  • the user in the event of a puncture can inflate the enclosure for the first time by placing a cartridge in the cartridge holder 3 and by triggering the pyrotechnic charge.
  • the user connects the screwdriver / unscrewer 6 to the mounting ring 31. He can then release the fixing nuts of the wheel of the vehicle to be changed. Then, he places enclosure 1 under the vehicle. He re-inflates the enclosure using another pyrotechnic cartridge and thus lifts the vehicle. He can then change the punctured wheel.
  • the enclosure can be deflated by removing, for example, the cartridge 10.
  • FIG. 3a represents in section an example pyrotechnic cartridge.
  • the cartridge 10 has a cavity 13 filled with pyrotechnic powder.
  • a nozzle 12 is threaded to allow attachment in the cartridge holder 3 of the inflatable enclosure.
  • the cavity 13 can communicate through the nozzle 12 with the interior of the enclosure.
  • a seal 11 makes it possible to perfect the seal during the mounting of the cartridge in the cartridge holder 3.
  • the cartridge is provided with electrodes 16 allowing the ignition of the pyrotechnic powder. These electrodes are connected to electrical connection pins 15, 15 ′ of the connector 14 so that they can be connected to a source of electrical power such as a battery, the cigarette lighter socket of the vehicle or any other source. electric.
  • Figure 3b shows a cartridge holder in which the cartridge of Figure 3a can be mounted.
  • This cartridge holder therefore has a threaded hole 31 (or any other fixing means) for receiving the thread 12 of the cartridge.
  • a non-return valve 32 allows the gas from the cartridge to enter the enclosure but prevents the gas from leaving the enclosure unless the valve 32 is pressed.
  • the mounting ring 31 can be produced in a similar manner to the cartridge holder of FIG. 3b.
  • FIG. 3c represents the interior of the enclosure 1, in which walls 20, 21, etc. have been provided, acting as baffles inside the enclosure. These walls have the role of distributing the effect of the gas produced by the cartridge during inflation.
  • the invention may be intended to serve as a reserve of compressed gas.
  • it can be applied to the control of a pneumatic screwdriver / deflector.
  • FIG. 4 represents an exemplary embodiment of such a system. It comprises an enclosure 1 provided with a cartridge holder 3 (or with a cartridge) and a mounting ring 31 to which is fixed a conduit 32 connected to a screwing / unscrewing device 6 pneumatically controlled.
  • the enclosure can be produced using a canvas of material of the type known commercially under the name of Kevlar which has the characteristic of being flexible, waterproof but very inelastic.
  • This enclosure may or may not be disposable after use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Actuator (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP96401256A 1995-06-16 1996-06-11 Pneumatisches Steuerungssystem, Hebevorrichtung und Steuerungssystem für einen Schrauber Withdrawn EP0751304A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9507226A FR2735538B1 (fr) 1995-06-16 1995-06-16 Systeme de commande pneumatique, systeme elevateur et systeme de commande d'un appareil visseur/devisseur
FR9507226 1995-06-16

Publications (2)

Publication Number Publication Date
EP0751304A2 true EP0751304A2 (de) 1997-01-02
EP0751304A3 EP0751304A3 (de) 1999-08-11

Family

ID=9480086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401256A Withdrawn EP0751304A3 (de) 1995-06-16 1996-06-11 Pneumatisches Steuerungssystem, Hebevorrichtung und Steuerungssystem für einen Schrauber

Country Status (2)

Country Link
EP (1) EP0751304A3 (de)
FR (1) FR2735538B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270960A3 (de) * 2001-06-18 2004-01-02 TRW Occupant Restraint Systems GmbH & Co. KG Betätigungsvorrichtung für eine Sicherheitseinrichtung
DE102007062602A1 (de) * 2007-12-22 2009-06-25 Diehl Bgt Defence Gmbh & Co. Kg Hebezeug zum Anheben einer Last, insbesondere als Bestandteil einer Notausrüstung für Bergungszwecke
EP2601127B1 (de) * 2010-08-04 2014-07-23 Abs Materials, Inc. Verfahren und system zur anwendung einer kraft gegen ein festkörperobjekt mit einem quellfähigen stoff aus sol-gel

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7928845U1 (de) * 1979-10-11 1980-01-24 Fa. Erwin Lampe, 3457 Stadtoldendorf Hubvorrichtung
FR2489898A1 (fr) * 1980-09-11 1982-03-12 Repa Feinstanzwerk Gmbh Dispositif d'entrainement pyrotechnique notamment pour le tendeur de rappel d'un systeme de ceinture de securite
JPS60249711A (ja) * 1984-05-24 1985-12-10 Hosoya Kako Kk 押圧装置
EP0197381A1 (de) * 1985-03-22 1986-10-15 The B.F. GOODRICH Company Pneumatischer Wagenheber
EP0485605A1 (de) * 1990-05-30 1992-05-20 Takata Kabushiki Kaisha Luftsackeinrichtung
WO1992009460A1 (en) * 1990-12-03 1992-06-11 International Development Corporation Electrothermal inflatable restraint system
DE4233317A1 (de) * 1992-10-05 1994-04-07 Eugen Stier Pneumatisch betätigter Hubtisch zum Anheben von Fahrzeugen und anderen Gegenständen zum Zweck der ergonomisch besseren Bearbeitbarkeit
EP0626338A1 (de) * 1993-05-26 1994-11-30 Zumro B.V. Aufblasbarer Körper
GB2282575A (en) * 1990-12-27 1995-04-12 Bridgestone Corp Air bags

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7928845U1 (de) * 1979-10-11 1980-01-24 Fa. Erwin Lampe, 3457 Stadtoldendorf Hubvorrichtung
FR2489898A1 (fr) * 1980-09-11 1982-03-12 Repa Feinstanzwerk Gmbh Dispositif d'entrainement pyrotechnique notamment pour le tendeur de rappel d'un systeme de ceinture de securite
JPS60249711A (ja) * 1984-05-24 1985-12-10 Hosoya Kako Kk 押圧装置
EP0197381A1 (de) * 1985-03-22 1986-10-15 The B.F. GOODRICH Company Pneumatischer Wagenheber
EP0485605A1 (de) * 1990-05-30 1992-05-20 Takata Kabushiki Kaisha Luftsackeinrichtung
WO1992009460A1 (en) * 1990-12-03 1992-06-11 International Development Corporation Electrothermal inflatable restraint system
GB2282575A (en) * 1990-12-27 1995-04-12 Bridgestone Corp Air bags
DE4233317A1 (de) * 1992-10-05 1994-04-07 Eugen Stier Pneumatisch betätigter Hubtisch zum Anheben von Fahrzeugen und anderen Gegenständen zum Zweck der ergonomisch besseren Bearbeitbarkeit
EP0626338A1 (de) * 1993-05-26 1994-11-30 Zumro B.V. Aufblasbarer Körper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 122 (M-476) [2179], 7 mai 1986 & JP 60 249711 A (HOSOYA KAKOU), 10 décembre 1985 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270960A3 (de) * 2001-06-18 2004-01-02 TRW Occupant Restraint Systems GmbH & Co. KG Betätigungsvorrichtung für eine Sicherheitseinrichtung
US6942251B2 (en) 2001-06-18 2005-09-13 Trw Occupant Restraint Systems Gmbh & Co. Kg Actuating device for a safety means
US7083023B2 (en) 2001-06-18 2006-08-01 Trw Occupant Restraint Systems Gmbh & Co. Kg Actuating device for a safety means
DE102007062602A1 (de) * 2007-12-22 2009-06-25 Diehl Bgt Defence Gmbh & Co. Kg Hebezeug zum Anheben einer Last, insbesondere als Bestandteil einer Notausrüstung für Bergungszwecke
EP2072451A3 (de) * 2007-12-22 2009-12-16 Diehl BGT Defence GmbH & Co.KG Hebezeug zum Anheben einer Last, insbesondere als Bestandteil einer Notausrüstung für Bergungszwecke
EP2601127B1 (de) * 2010-08-04 2014-07-23 Abs Materials, Inc. Verfahren und system zur anwendung einer kraft gegen ein festkörperobjekt mit einem quellfähigen stoff aus sol-gel

Also Published As

Publication number Publication date
FR2735538B1 (fr) 1997-07-25
FR2735538A1 (fr) 1996-12-20
EP0751304A3 (de) 1999-08-11

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