DE20303877U1 - Hand-guided hydraulic press cylinder forms part of hydraulic reservoir - Google Patents

Hand-guided hydraulic press cylinder forms part of hydraulic reservoir

Info

Publication number
DE20303877U1
DE20303877U1 DE20303877U DE20303877U DE20303877U1 DE 20303877 U1 DE20303877 U1 DE 20303877U1 DE 20303877 U DE20303877 U DE 20303877U DE 20303877 U DE20303877 U DE 20303877U DE 20303877 U1 DE20303877 U1 DE 20303877U1
Authority
DE
Germany
Prior art keywords
press device
hydraulic
expansion tank
reservoir
pressure
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.)
Expired - Lifetime
Application number
DE20303877U
Other languages
German (de)
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.)
Novopress GmbH Pressen und Presswerkzeuge and Co KG
Original Assignee
Novopress GmbH Pressen und Presswerkzeuge 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 Novopress GmbH Pressen und Presswerkzeuge and Co KG filed Critical Novopress GmbH Pressen und Presswerkzeuge and Co KG
Priority to DE20303877U priority Critical patent/DE20303877U1/en
Publication of DE20303877U1 publication Critical patent/DE20303877U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

A hand-guided hydraulic press has an electric motor (2) coupled to a hydraulic pump (4) whose suction side is liked to a hydraulic reservoir (13, 29). A piston (11) sub-divides a hydraulic cylinder (6) into a pressurised side (12) and an enclosed piston return-space (13). The return-space (13) is used esp. as part of the hydraulic reservoir.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (11)

1. Handgeführtes Preßgerät mit einem elektrischen An­ triebsmotor (2), einer von dem Antriebsmotor (2) an­ getriebenen Hydraulikpumpe (4), deren Saugseite mit einem Hydraulikreservoir (13, 29) verbunden ist, mit einem Hydraulikzylinder (6), in dem ein Hydraulik­ kolben (11) angeordnet ist, der den Hydraulikzylin­ der (6) in einen Druckraum (12), der mit der Druck­ seite der Hydraulikpumpe (4) in Verbindung steht, und einem geschlossenen Rückraum (13) aufteilt, und der in Richtung des Druckraums (12) mit einer Rück­ stellfeder (16) beaufschlagt ist sowie eine nach au­ ßen ragende Kolbenstange (14) für die Betätigung ei­ nes Preßwerkzeuges aufweist, wobei der Druckraum (12) mit dem Hydraulikreservoir (13, 29) über ein Überdruckventil (22) verbunden ist, das bei Errei­ chen eines bestimmten Auslegungsdrucks im Druckraum (12) zum Hydraulikreservoir (13, 29) hin öffnet, da­ durch gekennzeichnet, daß der Rückraum (13) zum Hy­ draulikreservoir gehört. 1. Hand-held pressing device with an electric drive motor ( 2 ), one of the drive motor ( 2 ) driven hydraulic pump ( 4 ), the suction side of which is connected to a hydraulic reservoir ( 13 , 29 ), with a hydraulic cylinder ( 6 ) in which a Hydraulic piston ( 11 ) is arranged, the hydraulic cylinder ( 6 ) in a pressure chamber ( 12 ), which is in communication with the pressure side of the hydraulic pump ( 4 ), and a closed rear space ( 13 ), and in the direction of Pressure chamber ( 12 ) is acted upon by a return spring ( 16 ) and has an outwardly projecting piston rod ( 14 ) for actuating a pressing tool, the pressure chamber ( 12 ) with the hydraulic reservoir ( 13 , 29 ) via a pressure relief valve ( 22 is connected) that is designed to at Errei a certain design pressure in the pressure chamber (12) to the hydraulic reservoir (13, 29 opens) toward because characterized by that the return chamber (13) to go Hy draulikreservoir rt. 2. Preßgerät nach Anspruch 1, dadurch gekennzeichnet, daß der Rückraum (13) Verbindung zu einem zum Ölre­ servoir gehörendem Ausgleichsbehälter (29) hat.2. Press device according to claim 1, characterized in that the rear space ( 13 ) has a connection to a reservoir belonging to the oil reservoir ( 29 ). 3. Preßgerät nach Anspruch 2, dadurch gekennzeichnet, daß das Volumen des Ausgleichsbehälters (29) verän­ derlich ist.3. Press device according to claim 2, characterized in that the volume of the expansion tank ( 29 ) is changeable. 4. Preßgerät nach Anspruch 3, dadurch gekennzeichnet, daß der Ausgleichsbehälter (29) eine flexible Wan­ dung (30) hat.4. Press device according to claim 3, characterized in that the expansion tank ( 29 ) has a flexible Wan extension ( 30 ). 5. Preßgerät nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der Ausgleichsbehälter (29) das Preßgerät mantelförmig umgibt.5. Press device according to one of claims 2 to 4, characterized in that the expansion tank ( 29 ) surrounds the press device in a jacket shape. 6. Preßgerät nach Anspruch 4 oder 5, dadurch gekenn­ zeichnet, daß der Ausgleichsbehälter (29) außensei­ tig von einem flexiblen Schlauch (30) eingefaßt ist.6. Press device according to claim 4 or 5, characterized in that the expansion tank ( 29 ) on the outside is framed by a flexible hose ( 30 ). 7. Preßgerät nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß der Ausgleichsbehälter (29) im Bereich der Hydraulikpumpe (4) angeordnet ist.7. Press device according to one of claims 2 to 6, characterized in that the expansion tank ( 29 ) is arranged in the region of the hydraulic pump ( 4 ). 8. Preßgerät nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß der Ausgleichsbehälter (29) über einen Ausgleichskanal (28) mit dem Rückraum (13) verbunden ist. 8. Press device according to one of claims 2 to 7, characterized in that the expansion tank ( 29 ) via a compensation channel ( 28 ) is connected to the rear space ( 13 ). 9. Preßgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Überdruckventil (22) im Hy­ draulikkolben (11) und/oder in der Kolbenstange (14) eingebaut ist.9. Press device according to one of claims 1 to 8, characterized in that the pressure relief valve ( 22 ) in the hydraulic piston ( 11 ) and / or in the piston rod ( 14 ) is installed. 10. Preßgerät nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Überdruckventil (22) so aus­ gebildet ist, daß es bei der Rückstellbewegung des Hydraulikkolbens (11) infolge der Einwirkung der Rückstellfeder (16) in Offenstellung verbleibt.10. Press device according to one of claims 1 to 9, characterized in that the pressure relief valve ( 22 ) is formed from the fact that it remains in the open position during the return movement of the hydraulic piston ( 11 ) due to the action of the return spring ( 16 ). 11. Preßgerät nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Rückstellfeder (16) inner­ halb der Rückraums (13) angeordnet ist.11. Press device according to one of claims 1 to 10, characterized in that the return spring ( 16 ) is arranged inside half of the rear space ( 13 ).
DE20303877U 2003-03-10 2003-03-10 Hand-guided hydraulic press cylinder forms part of hydraulic reservoir Expired - Lifetime DE20303877U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20303877U DE20303877U1 (en) 2003-03-10 2003-03-10 Hand-guided hydraulic press cylinder forms part of hydraulic reservoir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20303877U DE20303877U1 (en) 2003-03-10 2003-03-10 Hand-guided hydraulic press cylinder forms part of hydraulic reservoir

Publications (1)

Publication Number Publication Date
DE20303877U1 true DE20303877U1 (en) 2003-05-08

Family

ID=7980705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20303877U Expired - Lifetime DE20303877U1 (en) 2003-03-10 2003-03-10 Hand-guided hydraulic press cylinder forms part of hydraulic reservoir

Country Status (1)

Country Link
DE (1) DE20303877U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006001889U1 (en) * 2006-02-03 2007-03-08 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Drive unit e.g. for press equipment, has motor and attached hydraulic unit which has piston cylinder unit with electric motor propels hydraulic pump having reservoir for hydraulic fluid and connected to piston cylinder unit
DE102007007294B3 (en) * 2007-02-14 2008-07-10 Rothenberger Ag Drive unit with coupling for tool heads has housing with chamber for accumulators in end remote from coupling with total voltage of at least 12 Volts; chamber covered by removable cap has hydraulic pump with piston with transverse axis
DE202008015574U1 (en) 2008-11-24 2009-12-31 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Drive device for a pressing device and pressing device with such a drive device
DE202009003196U1 (en) 2009-03-10 2010-04-29 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handleable drive device for a pressing device
DE202009003197U1 (en) 2009-03-10 2010-05-06 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handleable drive device for a pressing device
DE102007005837B4 (en) * 2006-02-03 2016-04-07 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Drive unit for a pressing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006001889U1 (en) * 2006-02-03 2007-03-08 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Drive unit e.g. for press equipment, has motor and attached hydraulic unit which has piston cylinder unit with electric motor propels hydraulic pump having reservoir for hydraulic fluid and connected to piston cylinder unit
DE102007005837B4 (en) * 2006-02-03 2016-04-07 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Drive unit for a pressing device
DE102007007294B3 (en) * 2007-02-14 2008-07-10 Rothenberger Ag Drive unit with coupling for tool heads has housing with chamber for accumulators in end remote from coupling with total voltage of at least 12 Volts; chamber covered by removable cap has hydraulic pump with piston with transverse axis
EP1958732A2 (en) 2007-02-14 2008-08-20 Rothenberger AG Drive device with a coupling for tool heads
DE202008015574U1 (en) 2008-11-24 2009-12-31 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Drive device for a pressing device and pressing device with such a drive device
EP2189247A2 (en) 2008-11-24 2010-05-26 NOVOPRESS GMBH PRESSEN UND PRESSWERKZEUGE & CO. KG. Drive device for a press device and press device with such a drive device
DE202009003196U1 (en) 2009-03-10 2010-04-29 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handleable drive device for a pressing device
DE202009003197U1 (en) 2009-03-10 2010-05-06 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Handleable drive device for a pressing device
EP2228177A1 (en) 2009-03-10 2010-09-15 Novopress GmbH Pressen und Presswerkzeuge & Co. KG Handheld drive device for a press device and method for controlling a handheld drive device for a press device

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20030612

R021 Search request validly filed

Effective date: 20030603

R163 Identified publications notified

Effective date: 20050228

R150 Term of protection extended to 6 years

Effective date: 20060317

R151 Term of protection extended to 8 years

Effective date: 20090414

R152 Term of protection extended to 10 years
R152 Term of protection extended to 10 years

Effective date: 20111112

R071 Expiry of right
R071 Expiry of right