EP0093859A2 - Piston pour contrôler sans contact la position duditpiston - Google Patents

Piston pour contrôler sans contact la position duditpiston Download PDF

Info

Publication number
EP0093859A2
EP0093859A2 EP83102578A EP83102578A EP0093859A2 EP 0093859 A2 EP0093859 A2 EP 0093859A2 EP 83102578 A EP83102578 A EP 83102578A EP 83102578 A EP83102578 A EP 83102578A EP 0093859 A2 EP0093859 A2 EP 0093859A2
Authority
EP
European Patent Office
Prior art keywords
piston
permanent magnet
disks
sleeve
sealing material
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.)
Granted
Application number
EP83102578A
Other languages
German (de)
English (en)
Other versions
EP0093859B1 (fr
EP0093859A3 (en
Inventor
Josef Steiner
Walter Tröster
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0093859A2 publication Critical patent/EP0093859A2/fr
Publication of EP0093859A3 publication Critical patent/EP0093859A3/de
Application granted granted Critical
Publication of EP0093859B1 publication Critical patent/EP0093859B1/fr
Expired legal-status Critical Current

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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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means

Definitions

  • the invention relates to a piston according to the preamble of the main claim.
  • a piston is relatively complicated in its construction, so that it becomes expensive and also requires very high assembly costs in series production.
  • the piston according to the invention with the characterizing features of the main claim has the advantage over the fact that it is very simple and therefore requires little assembly effort.
  • a profile disk 12 or 13 the inside diameter of which corresponds to that of the sleeve 10 and the rest on the end faces of the sleeves.
  • the profile disks are designed so that an axial gap remains between them and the magnet 11. Their outer diameter corresponds approximately to that of the magnet 11, but can also be smaller.
  • the profiled disks 12, 13 On their sides facing away from the magnet 11, have flat annular grooves 14 and 15, respectively, in relation to elevations 16, 17.
  • the four parts described - after they have been brought into the correct position - are completely encapsulated or sealed with a sealing material 18 umpreßt, and that the inside of the sleeve 10 and washers 12, 13, so like their end faces 12 ', 13'.
  • sealing lips 20, 21 are formed by the sealing material, which protrude somewhat radially outwards. The piston thus forms a compact structure.
  • the profile disks 12, 13 can consist of magnetically conductive or of magnetically non-conductive material. Depending on the selection, the size of the magnetic field of the permanent magnet 11 can be influenced, which depends on the particular task. In this way, the position of the piston can always be precisely located by a sensor outside the cylinder receiving it.
  • the piston is pushed onto a piston rod 22 and screwed down, for example with the aid of nuts 23, 24.
  • the sealing material applied to the end faces 12 ', 13' of the profiled disks 12, 13 and that on the inside of the sleeve takes over the sealing against the piston rod or the two piston sides.
  • the sleeve 10 ensures that no axial forces act on the permanent magnet 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
EP83102578A 1982-04-02 1983-03-16 Piston pour contrôler sans contact la position duditpiston Expired EP0093859B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8209420U 1982-04-02
DE19828209420U DE8209420U1 (de) 1982-04-02 1982-04-02 Kolben fuer beruehrungslose abtastung der kolbenstellung

Publications (3)

Publication Number Publication Date
EP0093859A2 true EP0093859A2 (fr) 1983-11-16
EP0093859A3 EP0093859A3 (en) 1986-10-29
EP0093859B1 EP0093859B1 (fr) 1989-06-21

Family

ID=6738673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102578A Expired EP0093859B1 (fr) 1982-04-02 1983-03-16 Piston pour contrôler sans contact la position duditpiston

Country Status (2)

Country Link
EP (1) EP0093859B1 (fr)
DE (2) DE8209420U1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507167A1 (de) * 1985-03-01 1986-09-04 Festo KG, 7300 Esslingen Kolben-zylinder-anordnung
US4660460A (en) * 1985-07-29 1987-04-28 Allied Corporation Magnetic front seal for vacuum brake booster
EP0351317A1 (fr) * 1988-07-13 1990-01-17 Automax Vérin perfectionné
EP0631057A1 (fr) * 1993-06-23 1994-12-28 Firma Carl Freudenberg Joint d'étanchéité pour piston entrainé pneumatiquement
DE29607993U1 (de) * 1996-05-03 1996-08-01 Festo Kg, 73734 Esslingen Kolben für einen Arbeitszylinder
EP0721067A3 (fr) * 1995-01-04 1998-02-11 Beetz Hydraulik GmbH Vérin d'actionnement à fluide à capteur de champs magnétique
EP0838616A3 (fr) * 1996-10-28 1998-05-13 Hygrama Ag Piston pour un cylindre de travail pneumatique ou hydraulique
DE19651161C1 (de) * 1996-12-10 1998-06-04 Mannesmann Sachs Ag Verfahren zur Herstellung eines Kolbenringes
EP1058037A1 (fr) * 1999-06-01 2000-12-06 Festo AG & Co Piston pour un cylindre et son procédé de fabrication
WO2007003311A2 (fr) 2005-07-06 2007-01-11 Festo Ag & Co. Piston pour cylindre de travail
DE102010006631A1 (de) * 2010-02-02 2011-08-04 Rolls-Royce Deutschland Ltd & Co KG, 15827 Induktiver Sensor
EP3553327A4 (fr) * 2016-12-06 2020-07-29 SMC Corporation Ensemble tige et dispositif de pression hydraulique
DE102021205951A1 (de) 2021-06-11 2022-12-15 Festo Se & Co. Kg Kolben und damit ausgestatteter fluidbetätigter Arbeitszylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017213578A1 (de) * 2017-08-04 2019-02-07 BRUSS Sealing Systems GmbH Kolben mit wenigstens einer Elastomerdichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438940A1 (de) * 1964-08-17 1970-09-17 Bosch Gmbh Robert Vorrichtung zum Steuern eines durch ein Druckmittel angetriebenen Arbeitskolbens

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507167A1 (de) * 1985-03-01 1986-09-04 Festo KG, 7300 Esslingen Kolben-zylinder-anordnung
US4660460A (en) * 1985-07-29 1987-04-28 Allied Corporation Magnetic front seal for vacuum brake booster
EP0351317A1 (fr) * 1988-07-13 1990-01-17 Automax Vérin perfectionné
EP0631057A1 (fr) * 1993-06-23 1994-12-28 Firma Carl Freudenberg Joint d'étanchéité pour piston entrainé pneumatiquement
EP0721067A3 (fr) * 1995-01-04 1998-02-11 Beetz Hydraulik GmbH Vérin d'actionnement à fluide à capteur de champs magnétique
DE19715858C2 (de) * 1996-05-03 1999-09-30 Festo Ag & Co Kolben für einen Arbeitszylinder
DE29607993U1 (de) * 1996-05-03 1996-08-01 Festo Kg, 73734 Esslingen Kolben für einen Arbeitszylinder
US5813313A (en) * 1996-05-03 1998-09-29 Festo Kg Piston for a fluid power cylinder
EP0838616A3 (fr) * 1996-10-28 1998-05-13 Hygrama Ag Piston pour un cylindre de travail pneumatique ou hydraulique
US6003227A (en) * 1996-12-10 1999-12-21 Mannesmann Sachs Ag Process for manufacturing a piston ring
DE19651161C1 (de) * 1996-12-10 1998-06-04 Mannesmann Sachs Ag Verfahren zur Herstellung eines Kolbenringes
EP1058037A1 (fr) * 1999-06-01 2000-12-06 Festo AG & Co Piston pour un cylindre et son procédé de fabrication
DE19925083A1 (de) * 1999-06-01 2000-12-14 Festo Ag & Co Kolben für einen Arbeitszylinder und Verfahren zu seiner Herstellung
EP1058037B1 (fr) * 1999-06-01 2003-05-14 Festo AG & Co Piston pour un cylindre et son procédé de fabrication
WO2007003311A2 (fr) 2005-07-06 2007-01-11 Festo Ag & Co. Piston pour cylindre de travail
CN101218436B (zh) * 2005-07-06 2011-08-10 费斯托股份有限两合公司 工作缸的活塞
DE102010006631A1 (de) * 2010-02-02 2011-08-04 Rolls-Royce Deutschland Ltd & Co KG, 15827 Induktiver Sensor
EP3553327A4 (fr) * 2016-12-06 2020-07-29 SMC Corporation Ensemble tige et dispositif de pression hydraulique
US11143214B2 (en) 2016-12-06 2021-10-12 Smc Corporation Rod assembly and fluid pressure device
DE102021205951A1 (de) 2021-06-11 2022-12-15 Festo Se & Co. Kg Kolben und damit ausgestatteter fluidbetätigter Arbeitszylinder
US11821444B2 (en) 2021-06-11 2023-11-21 Festo Se & Co. Kg Piston and a fluid-actuated working cylinder provided therewith
DE102021205951B4 (de) 2021-06-11 2024-09-26 Festo Se & Co. Kg Kolben und damit ausgestatteter fluidbetätigter Arbeitszylinder

Also Published As

Publication number Publication date
EP0093859B1 (fr) 1989-06-21
DE8209420U1 (de) 1983-09-15
DE3380096D1 (en) 1989-07-27
EP0093859A3 (en) 1986-10-29

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