EP1469205A2 - Elément de force - Google Patents

Elément de force Download PDF

Info

Publication number: EP1469205A2
Authority: EP; European Patent Office
Prior art keywords: piston; cylinder sleeve; force element; element according; housing
Prior art date: 2003-04-19
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP04008316A

Other languages

German (de)

English (en)

Other versions

EP1469205A3 (fr

EP1469205B1 (fr

Inventor

Uwe Brede

Anton Bretfeld

Josef Storath

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.)

Delphi Technologies Inc

Original Assignee

Dynamit Nobel AiIS Automotive Ignition Systems GmbH

Delphi Technologies Inc

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.)

2003-04-19

Filing date

2004-04-06

Publication date

2004-10-20

2004-02-27 Priority claimed from DE102004009444A external-priority patent/DE102004009444A1/de

2004-04-06 Application filed by Dynamit Nobel AiIS Automotive Ignition Systems GmbH, Delphi Technologies Inc filed Critical Dynamit Nobel AiIS Automotive Ignition Systems GmbH

2004-10-20 Publication of EP1469205A2 publication Critical patent/EP1469205A2/fr

2005-05-11 Publication of EP1469205A3 publication Critical patent/EP1469205A3/fr

2007-08-15 Application granted granted Critical

2007-08-15 Publication of EP1469205B1 publication Critical patent/EP1469205B1/fr

2024-04-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- 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 force element with a housing in which a gas-generating Drive element and a piston with one arranged on the piston (2a) Tappets are arranged, wherein the piston from the drive gases generated Drive elements can be accelerated out of the housing in the direction of extension of the tappet is.
Such force elements are used for mechanical control processes in To set gear, to trigger or to operate directly.
DE 2 747 977 A1 is described after ignition of a pyrotechnic charge of an ignition element in a housing moves a piston on which a plunger is arranged, the then the plunger moves out of the housing and thus a mechanical movement can initiate by exercising strength.
Force elements of this are complex and costly. Especially the use in the automotive security area requires solutions with high technical performance at low Price.
the invention is based on the object, a force element according to the preamble of claim 1 to improve so that its manufacture is simplified and thereby is cheaper.
This object is achieved in that one in their housing End faces open cylinder sleeve is arranged, the Drive element is inserted and arranged on its second end face of the plunger is.
the piston has a larger diameter than the plunger and both are connected to each other via an annular shoulder.
the cylinder sleeve is on here adapted and has a larger diameter in the area of the piston than in Area of the plunger.
the transition from the cylinder sleeve to the larger one is used to the smaller diameter when the ram is extended as a stop for the annular shoulder of the piston.
This step or transition of the cylinder sleeve from the larger to the smaller Diameter is due to compression and / or folding of the cylinder sleeve or its Wall made.
the cylinder sleeve is preferably made of a metal.
the piston is on the drive element a semicircular bulge, preferably at the opposite end.
the wall of the cylinder sleeve is advantageously on the end faces of the cylinder sleeve bent outwards so that the cylinder sleeve better in the surrounding housing is anchored.
the plunger is preferably on its side facing away from the piston End tapered so that when it is driven into an interference fit with the cylinder sleeve transforms.
the housing is made of plastic.
a method for producing a force element according to the invention is distinguished characterized in that the cylinder sleeve, the drive element and the piston with the Tappets manufactured individually and then assembled as a kit and finally surrounded by the plastic housing.
This modular system has the advantage that the actual Functional unit consisting of drive element 1, plunger 2 with piston 2a and cylinder sleeve 3 without restriction with an external shape of the housing for the can be adapted to a wide variety of installation conditions.
Figure 2 shows various Embodiments of the outer adaptation geometry with the most varied Housing 5.
a technical overload situation occurs on an electrical device or if a crash situation occurs in the vehicle, an electrical system is activated via a sensor system Trigger current pulse is given to the connector pins 6 of the drive element 1.
Trigger current pulse is given to the connector pins 6 of the drive element 1.
the pyrotechnic drive charge in the drive element 1 ignited, which creates a driving pressure in the area of the piston 2a, which drives the plunger 2 via the piston 2a.
the one through the transition of the piston 2a to the plunger 2 formed annular shoulder 7 in its end position on the Strike cylinder sleeve 3 and slow it down.
the plunger 2 can also be slightly tapered so that when expelled by the taper passes into a press fit with the cylinder sleeve 3.
This taper can also be controlled braking enable.
the reference numeral 8 is a connector receptacle with a locking shape referred to, via which the plug to the pins 6 of the drive element 1st is attachable.
the cylinder sleeve 3 is open at its end faces, with one end face the drive element 1 is inserted and on the other end of the Ram 2 is arranged or protrudes.
the plunger 2 faces the drive element 1 pointing side a piston 2a, which has a larger diameter as the plunger 2 and connected to it via an annular shoulder 7 is.
the cylinder sleeve 3, which is in the region of the piston 2a and of the drive element 1 has a larger diameter than that of the drive element 1 opposite end of the cylinder sleeve 3.
the transition 10 of the Cylinder sleeve 3 from the larger to the smaller diameter is used in the extended State of the plunger 2 as a stop 11 for the piston 2a.
On the drive element 1 facing end of the piston 2a is a semicircular in the piston 2a Bulge 9 introduced.
Figure 2 shows different housing 5 of the force element, namely as in section quarter circular, triangular with z.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Actuator (AREA)
Fluid-Damping Devices (AREA)
Steering Control In Accordance With Driving Conditions (AREA)
Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

EP04008316A 2003-04-19 2004-04-06 Elément de force Expired - Lifetime EP1469205B1 (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
DE10317987		2003-04-19
DE10317987		2003-04-19
DE102004009444		2004-02-27
DE102004009444A DE102004009444A1 (de)	2003-04-19	2004-02-27	Kraftelement

Publications (3)

Publication Number	Publication Date
EP1469205A2 true EP1469205A2 (fr)	2004-10-20
EP1469205A3 EP1469205A3 (fr)	2005-05-11
EP1469205B1 EP1469205B1 (fr)	2007-08-15

Family

ID=32909561

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP04008316A Expired - Lifetime EP1469205B1 (fr)	2003-04-19	2004-04-06	Elément de force

Country Status (3)

Country	Link
EP (1)	EP1469205B1 (fr)
AT (1)	ATE370336T1 (fr)
DE (1)	DE502004004612D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2009037185A1 (fr) *	2007-09-14	2009-03-26	Ruag Ammotec Gmbh	Élément de force pyrotechnique
EP2444677A1 (fr) *	2010-10-22	2012-04-25	Dassault Aviation	Actionneur pneumatique d'éjection d'un emport porté par un aéronef et procédé d'éjection associé
AT12531U1 (de) *	2011-05-23	2012-07-15	Hirtenberger Automotive Safety Gmbh & Co Kg	Pyrotechnischer aktuator
AT511500A1 (de) *	2011-05-23	2012-12-15	Hirtenberger Automotive Safety Gmbh & Co Kg	Pyrotechnischer Aktuator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2747977A1 (de)	1977-10-26	1979-05-03	Dynamit Nobel Ag	Elektrisch ausloesbares kraftelement mit ausstossendem kolben

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2731398B1 (fr) *	1995-03-10	1997-05-30	Ecia Equip Composants Ind Auto	Actionneur a declenchement pilote de manoeuvre d'un organe, par exemple de vehicule automobile
US6568184B2 (en) *	2000-08-04	2003-05-27	Automotive Systems Laboratory, Inc.	Pyrotechnic actuator
DE10203710C1 (de) *	2002-01-31	2003-02-13	Thomas Magnete Gmbh	Pyrotechnischer Aktor

2004
- 2004-04-06 EP EP04008316A patent/EP1469205B1/fr not_active Expired - Lifetime
- 2004-04-06 DE DE502004004612T patent/DE502004004612D1/de not_active Expired - Lifetime
- 2004-04-06 AT AT04008316T patent/ATE370336T1/de not_active IP Right Cessation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2747977A1 (de)	1977-10-26	1979-05-03	Dynamit Nobel Ag	Elektrisch ausloesbares kraftelement mit ausstossendem kolben

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2009037185A1 (fr) *	2007-09-14	2009-03-26	Ruag Ammotec Gmbh	Élément de force pyrotechnique
US8635872B2 (en)	2007-09-14	2014-01-28	Ruag Ammotec Gmbh	Pyrotechnical actuator
EP2444677A1 (fr) *	2010-10-22	2012-04-25	Dassault Aviation	Actionneur pneumatique d'éjection d'un emport porté par un aéronef et procédé d'éjection associé
FR2966431A1 (fr) *	2010-10-22	2012-04-27	Dassault Aviat	Actionneur pneumatique d'ejection d'un emport porte par un aeronef et procede d'ejection associe
AT12531U1 (de) *	2011-05-23	2012-07-15	Hirtenberger Automotive Safety Gmbh & Co Kg	Pyrotechnischer aktuator
AT511500A1 (de) *	2011-05-23	2012-12-15	Hirtenberger Automotive Safety Gmbh & Co Kg	Pyrotechnischer Aktuator
AT511500B1 (de) *	2011-05-23	2013-02-15	Hirtenberger Automotive Safety Gmbh & Co Kg	Pyrotechnischer Aktuator

Also Published As

Publication number	Publication date
EP1469205A3 (fr)	2005-05-11
EP1469205B1 (fr)	2007-08-15
DE502004004612D1 (de)	2007-09-27
ATE370336T1 (de)	2007-09-15

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