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EP0744553A3 - Rodless linear actuator - Google Patents

Rodless linear actuator Download PDF

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Publication number
EP0744553A3
EP0744553A3 EP96105940A EP96105940A EP0744553A3 EP 0744553 A3 EP0744553 A3 EP 0744553A3 EP 96105940 A EP96105940 A EP 96105940A EP 96105940 A EP96105940 A EP 96105940A EP 0744553 A3 EP0744553 A3 EP 0744553A3
Authority
EP
European Patent Office
Prior art keywords
slot
housing
longitudinal
resistance
linear actuator
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
EP96105940A
Other languages
German (de)
French (fr)
Other versions
EP0744553B1 (en
EP0744553A2 (en
Inventor
Kurt Dr. Stoll
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP0744553A2 publication Critical patent/EP0744553A2/en
Publication of EP0744553A3 publication Critical patent/EP0744553A3/en
Application granted granted Critical
Publication of EP0744553B1 publication Critical patent/EP0744553B1/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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • 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
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • 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
    • 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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • 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
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2853—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using potentiometers

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)
  • Transmission Devices (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Adjustable Resistors (AREA)

Abstract

Es wird ein kolbenstangenloser Linearantrieb vorgeschlagen, der ein einen Längsschlitz (14) aufweisendes Gehäuse und ein in dem Gehäuse längsbeweglich angeordnetes Antriebsteil (7) aufweist. Ein mit dem Antriebsteil (7) verbundenes Übertragungsglied ragt durch den Längsschlitz (14) hindurch nach außen. Im Bereich der beiden Schlitzflanken des Längsschlitzes (14) ist jeweils ein sich in Schlitzlängsrichtung erstreckender gehäusefester Widerstandsstreifen (23, 23') angeordnet. An dem Übertragungsglied ist eine Schleifkontaktanordnung (32) vorgesehen, die gleichzeitig mit beiden Widerstandsstreifen (23, 23') in Kontakt steht und bei der Längsbewegung des Übertragungsgliedes auf den Widerstandsstreifen (23, 23') entlang gleitet. Vorgesehene Anschlußmittel (28) ermöglichen die Verbindung der beiden Wiederstandsstreifen (23, 23') mit einer Positionserfassungs-Auswerteeinrichtung.

Figure 00000001
A rodless linear drive is proposed which has a housing having a longitudinal slot (14) and a drive part (7) which is arranged in the housing so as to be longitudinally movable. A transmission member connected to the drive part (7) projects through the longitudinal slot (14) to the outside. A resistance strip (23, 23 ') fixed to the housing and extending in the longitudinal direction of the slot is arranged in the area of the two slot flanks of the longitudinal slot (14). A sliding contact arrangement (32) is provided on the transmission element, which is in contact with both resistance strips (23, 23 ') at the same time and slides along the resistance strip (23, 23') during the longitudinal movement of the transmission element. Provided connection means (28) enable the connection of the two resistance strips (23, 23 ') to a position detection evaluation device.
Figure 00000001
EP96105940A 1995-05-23 1996-04-16 Rodless linear actuator Expired - Lifetime EP0744553B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29508517U DE29508517U1 (en) 1995-05-23 1995-05-23 Rodless linear actuator
DE29508517U 1995-05-23

Publications (3)

Publication Number Publication Date
EP0744553A2 EP0744553A2 (en) 1996-11-27
EP0744553A3 true EP0744553A3 (en) 1999-08-11
EP0744553B1 EP0744553B1 (en) 2003-03-12

Family

ID=8008437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105940A Expired - Lifetime EP0744553B1 (en) 1995-05-23 1996-04-16 Rodless linear actuator

Country Status (4)

Country Link
US (1) US5662022A (en)
EP (1) EP0744553B1 (en)
KR (1) KR100193328B1 (en)
DE (2) DE29508517U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813371C2 (en) * 1998-03-26 2001-12-20 Festo Ag & Co Rodless linear actuator
DE20014353U1 (en) 2000-08-19 2000-12-07 Festo AG & Co, 73734 Esslingen linear actuator
DE20100672U1 (en) 2001-01-16 2001-03-22 Festo AG & Co, 73734 Esslingen Linear drive with position detection device
DE20106298U1 (en) * 2001-04-10 2001-06-21 FESTO AG & Co., 73734 Esslingen linear actuator
DE20300571U1 (en) 2003-01-15 2003-03-13 FESTO AG & Co., 73734 Esslingen Linear drive with position detection means
US6917515B2 (en) * 2003-04-28 2005-07-12 Kita Sensor Tech. Co., Ltd. Electrical component having a housing retained in a receiving groove in a support through a retaining device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112985A2 (en) * 1982-12-02 1984-07-11 Dr. Johannes Heidenhain GmbH Device for the measurement of feed motions
DE9101734U1 (en) * 1991-02-15 1991-05-23 Hygrama Ag, Rotkreuz Pressure cylinder
DE4241189A1 (en) * 1992-12-03 1994-06-09 Mannesmann Ag Pressure operated drive cylinder position determination appts. - has position measurement devices on exterior of cylinder with activating transducer on longitudinally-guided carriage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3520199A1 (en) * 1984-10-05 1986-04-10 Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover POTENTIOMETER

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112985A2 (en) * 1982-12-02 1984-07-11 Dr. Johannes Heidenhain GmbH Device for the measurement of feed motions
DE9101734U1 (en) * 1991-02-15 1991-05-23 Hygrama Ag, Rotkreuz Pressure cylinder
DE4241189A1 (en) * 1992-12-03 1994-06-09 Mannesmann Ag Pressure operated drive cylinder position determination appts. - has position measurement devices on exterior of cylinder with activating transducer on longitudinally-guided carriage

Also Published As

Publication number Publication date
DE59610210D1 (en) 2003-04-17
EP0744553B1 (en) 2003-03-12
DE29508517U1 (en) 1995-08-10
US5662022A (en) 1997-09-02
EP0744553A2 (en) 1996-11-27
KR100193328B1 (en) 1999-06-15
KR960041770A (en) 1996-12-19

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