EP0957269A3 - Piston seal - Google Patents

Piston seal Download PDF

Info

Publication number
EP0957269A3
EP0957269A3 EP99850068A EP99850068A EP0957269A3 EP 0957269 A3 EP0957269 A3 EP 0957269A3 EP 99850068 A EP99850068 A EP 99850068A EP 99850068 A EP99850068 A EP 99850068A EP 0957269 A3 EP0957269 A3 EP 0957269A3
Authority
EP
European Patent Office
Prior art keywords
sealing
cylinder
sealing lip
piston seal
section
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
EP99850068A
Other languages
German (de)
French (fr)
Other versions
EP0957269B1 (en
EP0957269A2 (en
Inventor
Kenneth Johansson
Mikael Tull
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.)
Rexroth Mecman AB
Original Assignee
Rexroth Mecman AB
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 Rexroth Mecman AB filed Critical Rexroth Mecman AB
Publication of EP0957269A2 publication Critical patent/EP0957269A2/en
Publication of EP0957269A3 publication Critical patent/EP0957269A3/en
Application granted granted Critical
Publication of EP0957269B1 publication Critical patent/EP0957269B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

A piston seal (6) for a piston of a rodless slotted cylinder, having an oblong cross section, wherein an inner sealing band (3) is provided on the inside of the slot, and wherein the seal (6) has an oblong ring-shape corresponding to the cross section of the cylinder (Fig. 1a) with an inner holding portion (7) and a surrounding sealing lip (8). The invention is distinguished by the sealing lip (8) comprising a radially outwardly directed protrusion (9) in the area of the inner sealing band (3), in order to ensure sealing contact of the sealing lip (8) with the inside of the sealing band (3) when the latter is allowed to be deformed when pressurising the cylinder.
EP19990850068 1998-05-12 1999-04-21 Piston seal Expired - Lifetime EP0957269B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9801651 1998-05-12
SE9801651A SE512033C2 (en) 1998-05-12 1998-05-12 Piston seal and wear cylinder with a piston provided with two such seals

Publications (3)

Publication Number Publication Date
EP0957269A2 EP0957269A2 (en) 1999-11-17
EP0957269A3 true EP0957269A3 (en) 2001-06-27
EP0957269B1 EP0957269B1 (en) 2004-04-07

Family

ID=20411271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990850068 Expired - Lifetime EP0957269B1 (en) 1998-05-12 1999-04-21 Piston seal

Country Status (4)

Country Link
EP (1) EP0957269B1 (en)
JP (1) JP2000027810A (en)
DE (1) DE69916163T2 (en)
SE (1) SE512033C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102553970A (en) * 2012-01-09 2012-07-11 中冶南方工程技术有限公司 Waste strip automatic traction device
JP6356987B2 (en) * 2014-03-20 2018-07-11 Nok株式会社 Piston seal for rodless cylinder
DE102016213904B4 (en) * 2016-07-28 2018-03-22 Schaeffler Technologies AG & Co. KG Piston-cylinder unit
KR101843709B1 (en) * 2018-01-17 2018-03-29 김성환 A viscous damper for leakage prevention
DE102018201936B4 (en) * 2018-02-08 2023-01-26 Festo Se & Co. Kg Rodless linear actuator and production kit and plurality of rodless linear actuators

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164893A (en) * 1977-08-04 1979-08-21 Bo Granbom Sealing device at pressure fluid cylinders
EP0525290A1 (en) * 1991-07-24 1993-02-03 Firma Carl Freudenberg Seal arrangement
DE19533620A1 (en) * 1994-09-13 1996-03-14 Hygrama Ag Pressure medium cylinder without piston rod
US5531151A (en) * 1991-02-19 1996-07-02 Festo Kg Rodless cylinder
EP0884485A2 (en) * 1997-06-11 1998-12-16 Howa Machinery, Ltd. A rodless power cylinder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164893A (en) * 1977-08-04 1979-08-21 Bo Granbom Sealing device at pressure fluid cylinders
US5531151A (en) * 1991-02-19 1996-07-02 Festo Kg Rodless cylinder
EP0525290A1 (en) * 1991-07-24 1993-02-03 Firma Carl Freudenberg Seal arrangement
DE19533620A1 (en) * 1994-09-13 1996-03-14 Hygrama Ag Pressure medium cylinder without piston rod
EP0884485A2 (en) * 1997-06-11 1998-12-16 Howa Machinery, Ltd. A rodless power cylinder

Also Published As

Publication number Publication date
EP0957269B1 (en) 2004-04-07
SE9801651L (en) 1999-11-13
SE9801651D0 (en) 1998-05-12
DE69916163D1 (en) 2004-05-13
JP2000027810A (en) 2000-01-25
DE69916163T2 (en) 2005-05-19
SE512033C2 (en) 2000-01-17
EP0957269A2 (en) 1999-11-17

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