EP1255046A2 - Vérin, surtout pour l'emploi dans l'industrie alimentaire - Google Patents

Vérin, surtout pour l'emploi dans l'industrie alimentaire Download PDF

Info

Publication number
EP1255046A2
EP1255046A2 EP02009290A EP02009290A EP1255046A2 EP 1255046 A2 EP1255046 A2 EP 1255046A2 EP 02009290 A EP02009290 A EP 02009290A EP 02009290 A EP02009290 A EP 02009290A EP 1255046 A2 EP1255046 A2 EP 1255046A2
Authority
EP
European Patent Office
Prior art keywords
sensor
section
channel
pressure cylinder
cylinder
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
EP02009290A
Other languages
German (de)
English (en)
Other versions
EP1255046A3 (fr
EP1255046B1 (fr
Inventor
Ernst-August Meyer
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.)
Aventics GmbH
Original Assignee
Rexroth Mecman 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 Rexroth Mecman GmbH filed Critical Rexroth Mecman GmbH
Publication of EP1255046A2 publication Critical patent/EP1255046A2/fr
Publication of EP1255046A3 publication Critical patent/EP1255046A3/fr
Application granted granted Critical
Publication of EP1255046B1 publication Critical patent/EP1255046B1/fr
Anticipated expiration legal-status Critical
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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders
    • 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 pressure cylinder, in particular for use in the Food industry, with a cylinder tube, the end with a cylinder bottom as well a cylinder cover is closed and in which a piston is longitudinally displaceable is housed, from which a piston rod extends coaxially, the cylinder cover sealed penetrates, with a sensor on the cylinder tube for detecting the piston position is provided, which is slidably attached longitudinally along the cylinder tube.
  • a generic pressure cylinder comes from the catalog "Know-How in Pneumatics" from Rexroth Mecmann GmbH (print no. 00010 006 01, page 1.235).
  • the Pressure cylinder essentially consists of a cylinder tube with an internal one Piston and piston rod with a cylinder bottom and a cylinder cover on the end Tension anchor extending outside along the cylinder tube is attached.
  • the tie rods serve here also the attachment of a sensor, which is used to detect the position of the serves piston running within the cylinder tube.
  • Piston position value is usually a higher-level control unit for controlling the Actuation of the pressure medium cylinder provided.
  • the senor Because of the exposed Arranging the sensor on the outside of the cylinder tube can lead to undesirable Dirt accumulations come in this area. Furthermore, the sensor is not here adequately protected against external forces, so that there is an adjustment of the Position of the sensor and thus an incorrect position determination can occur. in the In extreme cases, the sensor can be attached to the outside of the cylinder barrel due to the exposed attachment also be subject to destruction.
  • DE 197 167 36 A1 proposes the sensor to accommodate within a groove running along the cylinder tube and the groove-like recess open to the outside by means of a to the outer contour of the To close the cylinder tube adapted cover.
  • This solution allows one dirt-protected housing of a sensor on a cylinder tube; nevertheless can hereby no reliable moisture protection can be guaranteed, because moisture from the Area of the cover hood snapping onto the cylinder tube in the groove-like recess can reach.
  • the invention is based on a pressure cylinder according to the preamble of Claim 1 solved in conjunction with its characterizing features.
  • the following dependent claims give advantageous developments of the invention again.
  • the invention includes the technical teaching that the piston interacting cylinder tube of the pressure medium cylinder from a separate outer tube is surrounded, which with at least one extending longitudinally within the wall closed channel to accommodate the sensor.
  • the present invention thus uses a two-part structure of the Cylinder barrel range.
  • a cylinder tube is used, which is only has the task with the internal piston of the pressure medium cylinder co.
  • this cylinder tube must be designed to be pressure-stable.
  • the cylinder tube does not have the function of accommodating sensors executed.
  • a separate outer tube is pushed over the cylinder barrel used.
  • the outer tube serves on the one hand to protect it from dirt and moisture Housing the sensor and therefore does not need to be pressure stable.
  • the outer contour of the pressure cylinder so that this one smooth, level, jag-free surface, on which no dirt can accumulate and can fix.
  • the sensor is completely surrounded by the channel, moisture can be present do not get to the sensor. Only the front ends are used for sealing Close the outlet openings of the channel. This is preferably done by the Cylinder cover or base.
  • the sensor according to the invention is also completely protected against touch, so that an unwanted adjustment as a result of a disturbing external force is avoided.
  • the senor can, however, along the Channel can be moved for adjustment purposes by an axial along the channel Tooth is formed, the corresponding with locking means formed on the sensor interacts.
  • the teeth can, for example, by introducing a Threaded hole are formed in the channel.
  • the toothing is preferred however in the manner of an axially extending along the channel and part of the Cross-sectional profile of the channel-forming toothed section.
  • the Gear section can be a separate rack or the like, which in one corresponding groove-like recess is inserted in a form-fitting manner along the channel and as far as is contained herein.
  • the toothing it is also conceivable to slidable attachment of the sensor along the channel to provide a magnetic tape that interacts with magnetic means on the sensor.
  • the magnetic tape For example, be permanently magnetic and the sensor at least partially Steel or vice versa.
  • the channel consists of Cross section seen from a sensor section for slidable attachment of the sensor and a cable section running parallel to this to accommodate a sensor outgoing sensor cable. Due to the parallel arrangement of both channel sections and their A clear assignment of functions can be made by adjusting the sensor within the channel unhindered by the arrangement of the outgoing sensor cable because the sensor cable U-shaped can be accommodated in the channel.
  • the sensor section viewed in cross section be of a circular shape has a different profile shape, which with a corresponding profile shape of the sensor interacts accordingly. Due to the form fit that occurs simply twisting the sensor within the sensor section of the channel avoided.
  • the locking means interacting with the toothing of the channel Sensor in a simple manner as one end of a spring section arranged on the sensor trained latch.
  • the locking lug thus reaches the spring-loaded Interlocking teeth.
  • the spring section can, for example, as a spring plate or as Spiral spring or be formed in another suitable manner.
  • a steel flag fixed to the locking lug provided, by means of a suitable adjusting magnet from the outside Return movement of the locking lug against the spring force exerted by the spring section is possible.
  • the adjusting magnet is to be regarded as a special tool, which alone authorized persons can be made accessible to an unwanted adjustment of the Exclude sensor position by unauthorized persons.
  • the cylinder tube cooperating with the piston advantageously has circular profile and consists of a metal, preferably aluminum.
  • a metal preferably aluminum.
  • By this measure can be done by using a commercially available semi-finished product manufacture in a simple way by cutting to length.
  • the cylinder tube based on the design requirements Customizable pressure stability.
  • there is that pushed over the cylinder barrel Outer tube preferably made of a transparent material, such as acrylic glass.
  • the Transparent design of the outer tube the adjustment of the sensor within the channel facilitated.
  • the outer tube can advantageously have a substantially square outer Cross section are provided, the channel for housing the sensor along the reinforced compared to the inner circular cross section of the outer tube Wall corner area runs.
  • the remaining wall corner areas can be used Arrangement of additional sensors in appropriate channels or for through holes Accommodation of tie rods can be used.
  • the tie rods are used to attach the Cylinder cover and cylinder bottom provided on the cylinder barrel.
  • cylinder 1 essentially consists of a circular ring profiled cylinder tube 1 made of aluminum, which is made of a transparent plastic existing outer tube 2 is surrounded. Inside the cylinder tube 1 is a - not here further shown - piston with piston rod longitudinally displaceable. The The piston rod is sealed by one end of the cylinder tube 1 Cylinder cover 3 out. The opposite end of the cylinder tube 1 is with a Cylinder base 4 closed. The cylinder cover 3 and the cylinder base 4 are on Cylinder tube 1 fastened by means of two tie rods 5a and 5b.
  • the tie rods 5a and 5b are as Threaded rods formed, the fastening via screwable nuts enable the cylinder cover 3 and the cylinder bottom 4 on the cylinder tube 1.
  • the Tie rods 5a and 5b run along the cylinder tube 1 within assigned through holes 6a and 6b arranged in the outer tube 2.
  • Outer tube two channels 7a and 7b are provided for accommodating sensors 8.
  • This here exemplary illustrated sensor 8 is used to detect the piston position of the Pressure cylinder.
  • a sensor cable 9 coming from the sensor 8 is connected to the Cylinder cover 3 or the cylinder bottom 4 or the wall of the outer tube 2 to the outside led to the connection with a - not shown here - control unit enable.
  • the outer tube 2 has a square outer cross section, the adapted accordingly to the shape of the cylinder cover and the cylinder base is to give the pressure medium cylinder a smooth outer contour.
  • the channel 7 for housing the sensor 8 has a two-part profile shape on the one hand from a sensor section 10 for slidably accommodating the Sensor 8 and on the other hand from a cable section 11 running parallel thereto Housing of the sensor cable 9 outgoing from the sensor 8 exists.
  • the sensor section 10 is profiled in cross-section such that as a result of an appropriately trained Profiling the sensor 8 an anti-rotation of the sensor 8 within the Sensor section 10 is made possible.
  • the sensor 8 is within the sensor section 10 of the Channel 7 fixable via a rack 12, which in a corresponding groove-like Recess is inserted along the sensor section 10.
  • the sensor 8 is fixed within the channel 7 according to FIG. 3 via the sensor 8 trained locking means, which with the toothing of the extending along the channel 7 Rack 12 cooperate. After releasing the resilient locking means, an adjustment is made of the sensor 8 possible within the channel 7 in order to mount or adjust it.
  • the locking means consist in this embodiment is made entirely of spring steel.
  • the steel flag 15 serves one here not shown - outer adjusting magnet as a kind of magnet armature to a Return movement of the locking lug 14 from the toothing for the purpose of adjusting the Allow sensor 8 within the channel.
  • the invention is not limited to the preferred one described above Embodiment. Rather, modifications of this are conceivable, which despite other design also from the scope of protection of the following Can make claims.
  • the invention is not limited to Fixation of the sensor within the closed channel by using a toothing interacting locking means. These are also suitable by other, a shift fixing means enabling the sensor can be replaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP02009290A 2001-04-30 2002-04-29 Vérin, surtout pour l'emploi dans l'industrie alimentaire Expired - Lifetime EP1255046B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10121190 2001-04-30
DE10121190 2001-04-30

Publications (3)

Publication Number Publication Date
EP1255046A2 true EP1255046A2 (fr) 2002-11-06
EP1255046A3 EP1255046A3 (fr) 2004-02-25
EP1255046B1 EP1255046B1 (fr) 2005-07-13

Family

ID=7683284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009290A Expired - Lifetime EP1255046B1 (fr) 2001-04-30 2002-04-29 Vérin, surtout pour l'emploi dans l'industrie alimentaire

Country Status (2)

Country Link
EP (1) EP1255046B1 (fr)
DE (3) DE10152178C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306461A1 (de) * 2003-02-17 2004-09-09 Imi Norgren Gmbh Fluidbetätigter Arbeitszylinder
DE102007029628B3 (de) * 2007-06-26 2009-01-15 Robert Bosch Gmbh Pneumatikzylinder mit einem Zylindergehäuse aus stranggepresstem Metall
EP2292936A1 (fr) * 2009-09-04 2011-03-09 Kolben-Seeger GmbH & Co. KG Pneumatik und Hydraulik Vérin pneumatique
DE102017123559A1 (de) 2017-10-10 2019-04-11 Sick Ag Vorrichtung zur Befestigung eines Zylindersensors an einem Hygienezylinder
DE202018101288U1 (de) 2018-03-07 2019-06-11 Sick Ag Vorrichtung zur Befestigung eines Sensors an einem Hygienezylinder
DE102018105255A1 (de) 2018-03-07 2019-09-12 Sick Ag Vorrichtung zur Befestigung eines Sensors an einem Hygienezylinder

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10303889B3 (de) * 2003-01-30 2004-04-08 Bar Pneumatische Steuerungssysteme Gmbh Diagnoseverfahren und -vorrichtung für einen pneumatischen Stellantrieb
DE102007008338B4 (de) * 2007-02-20 2009-12-17 Festo Ag & Co. Kg Positionssensoreinrichtung und damit ausgestatteter Aktor
DE102007042849A1 (de) * 2007-09-10 2009-03-19 Zf Friedrichshafen Ag Sensorhalterung für ein Kolben-Zylinderaggregat
DE102014226830B4 (de) * 2014-12-22 2016-11-24 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine mit hygienischem Pneumatikzylinder
DE202017106144U1 (de) 2017-10-10 2019-01-14 Sick Ag Vorrichtung zur Befestigung eines Zylindersensors an einem Hygienezylinder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716736A1 (de) 1997-04-14 1998-10-15 Mannesmann Ag Einrichtung zur Sensorbefestigung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5957029A (en) * 1997-09-19 1999-09-28 Bimba Manufacturing Co. Linear thruster
DE29816156U1 (de) * 1998-09-09 1998-11-26 Festo AG & Co, 73734 Esslingen Linearantrieb
DE29818823U1 (de) * 1998-10-22 1999-01-07 Kuhnke GmbH, 23714 Malente Fluidischer Aktor
DE19925600A1 (de) * 1999-06-04 2000-12-14 Sbs Sondermaschinen Gmbh Leichtbau-Hydraulikzylinder mit Zugankern

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716736A1 (de) 1997-04-14 1998-10-15 Mannesmann Ag Einrichtung zur Sensorbefestigung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306461A1 (de) * 2003-02-17 2004-09-09 Imi Norgren Gmbh Fluidbetätigter Arbeitszylinder
DE10306461B4 (de) * 2003-02-17 2007-06-14 Imi Norgren Gmbh Fluidbetätigter Arbeitszylinder
DE102007029628B3 (de) * 2007-06-26 2009-01-15 Robert Bosch Gmbh Pneumatikzylinder mit einem Zylindergehäuse aus stranggepresstem Metall
EP2009292A3 (fr) * 2007-06-26 2011-06-01 Robert Bosch GmbH Cylindre pneumatique doté d'un boîtier cylindrique en métal extrudé
EP2292936A1 (fr) * 2009-09-04 2011-03-09 Kolben-Seeger GmbH & Co. KG Pneumatik und Hydraulik Vérin pneumatique
DE102017123559A1 (de) 2017-10-10 2019-04-11 Sick Ag Vorrichtung zur Befestigung eines Zylindersensors an einem Hygienezylinder
DE202018101288U1 (de) 2018-03-07 2019-06-11 Sick Ag Vorrichtung zur Befestigung eines Sensors an einem Hygienezylinder
DE102018105255A1 (de) 2018-03-07 2019-09-12 Sick Ag Vorrichtung zur Befestigung eines Sensors an einem Hygienezylinder

Also Published As

Publication number Publication date
DE50204003D1 (de) 2005-09-29
DE50203605D1 (de) 2005-08-18
DE10152178A1 (de) 2002-11-14
DE10152178C2 (de) 2003-04-17
EP1255046A3 (fr) 2004-02-25
EP1255046B1 (fr) 2005-07-13

Similar Documents

Publication Publication Date Title
DE69310470T2 (de) Pipette zur Entnahme und zur Verteilung von verschiedener Flüssigkeitsmengen
DE2546299C3 (de) Eichfähige Pipette
EP1730371B1 (fr) Fermeture quart de tour en deux parties
DE3535704A1 (de) Kolben-zylinder-anordnung
EP1255046A2 (fr) Vérin, surtout pour l'emploi dans l'industrie alimentaire
DE102013113726A1 (de) Steuerkopf
DE8505017U1 (de) Hydraulischer oder pneumatischer arbeitszylinder
DE102009020286A1 (de) Kolben mit variablem Permanent-Magneten
DE3411823C2 (fr)
DE102013104078B4 (de) Riegelschloss eines Möbels
DE29816156U1 (de) Linearantrieb
DE19531680C1 (de) Betätigungsvorrichtung
EP0000878A1 (fr) Soupape de réglage, spéciallement soupape réglée thermostatiquement
DE4408639A1 (de) Arbeitszylinder mit einem Zylindergehäuseprofil
EP1253329B1 (fr) Vérin à pression fluidique avec dispositif anti-rotation
EP1173649B1 (fr) Paumelle pour portes, fenetres et analogues
DE102010014145B3 (de) Wasserdichtes Hangschloss
EP1781529B1 (fr) Emetteur d'impulsions magnetique notamment destine a des mesures de tours de roue de bicyclettes et similaires
WO2005068884A1 (fr) Robinet sanitaire
DE19930020B4 (de) Linearantrieb
EP2284335A2 (fr) Dispositif de palier et rosette formant une partie d'une garniture de poignée
DE102013216881A1 (de) Linearantrieb
DE10041652B4 (de) Abstandsveränderlicher Schließbügel für Drehfallenverschlüsse
WO2018095520A1 (fr) Palier de poignée pour une poignée de porte ou de fenêtre et poignée de porte ou de fenêtre pourvue d'un palier de poignée
EP1255045B1 (fr) Vérin avec un capteur coulissable pour détecter la position du piston

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040402

17Q First examination report despatched

Effective date: 20040614

AKX Designation fees paid

Designated state(s): DE FR IT SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050713

REF Corresponds to:

Ref document number: 50203605

Country of ref document: DE

Date of ref document: 20050818

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060418

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110427

Year of fee payment: 10

Ref country code: SE

Payment date: 20110419

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110628

Year of fee payment: 10

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121228

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50203605

Country of ref document: DE

Effective date: 20121101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121101