EP0953763A2 - Pompe manuelle - Google Patents

Pompe manuelle Download PDF

Info

Publication number
EP0953763A2
EP0953763A2 EP19990108348 EP99108348A EP0953763A2 EP 0953763 A2 EP0953763 A2 EP 0953763A2 EP 19990108348 EP19990108348 EP 19990108348 EP 99108348 A EP99108348 A EP 99108348A EP 0953763 A2 EP0953763 A2 EP 0953763A2
Authority
EP
European Patent Office
Prior art keywords
pump
piston
cam
hand
pump piston
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
EP19990108348
Other languages
German (de)
English (en)
Other versions
EP0953763B1 (fr
EP0953763A3 (fr
Inventor
Lothar Dr. Haselmann
Ulrich Schulz
Georg Strommer
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.)
Weber Hydraulik GmbH Germany
Original Assignee
Weber Hydraulik GmbH Germany
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 Weber Hydraulik GmbH Germany filed Critical Weber Hydraulik GmbH Germany
Publication of EP0953763A2 publication Critical patent/EP0953763A2/fr
Publication of EP0953763A3 publication Critical patent/EP0953763A3/fr
Application granted granted Critical
Publication of EP0953763B1 publication Critical patent/EP0953763B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation

Definitions

  • the present invention relates to a hand pump.
  • a hydraulic pump consisting of a Pump cylinder with a pump lever actuated piston rod and piston on the one hand and with an associated container for the Pressure medium, on the other hand, is in the room a ventilation valve above the oil level is provided and a cam is arranged on the pump lever is through which the vent valve at each Pump stroke is opened.
  • German patent DE-PS 18 45 696 treated a piston pump for manual operation, in which one made of plastic, two with Assemble flanged cylinder parts Cylinder a piston made of plastic is arranged, one of the same material existing rack carries in the one Gear segment engages.
  • German patent application DE 31 12 733 A1 is a pump for pumping gases or Liquids trained, using a plunger driven vacuum piston pump described, the Tappet by means of a lever arrangement from one Eccentric is driven, the lever arrangement of two against each other by means of a spring braced levers is formed, one of which is free Opposite ends are held on the eccentric and the other free ends of which are in contact with the plunger stand.
  • the present invention has shortcomings based on the task of being simple and inexpensive to provide the hand pump to be manufactured, which moreover due to a smaller number functional parts are less prone to failure is.
  • the hand pump is not only simple and inexpensive to produce, but has due to the Arrangement of the at least one joint positive interaction of the pump piston with the cam also a smaller number of functional Parts on, so that the hand pump according to the present invention by a significant characterized by reduced susceptibility to faults:
  • the hinge that conveniently attaches to the cam assigned free end of the pump piston is between the cam and the pump cylinder preferably by means of a hole in at least one fitted and / or in at least one recess engaging axis formed.
  • This frictional connection can be particularly excellently realized when the axis in a bore of the cam is fitted and / or if the axis in a recess of the pump piston intervenes. In connection with this or independently from this it is recommended to make the axis bolt-shaped to train.
  • the pump piston of the Pump cylinder s a big game as well as at least one at least this game absorbing elastic Seal on according to a preferred Embodiment of the present invention on the free end of the pump piston opposite end of the pump piston and through which the Tightness of the pump piston in the pump cylinder causes is.
  • elastic Seal on according to a preferred Embodiment of the present invention on the free end of the pump piston opposite end of the pump piston and through which the Tightness of the pump piston in the pump cylinder causes is.
  • two or more to each other spaced circumferential seals can be provided.
  • seal allows the pump piston to its lifting movement due to the non-positive Articulation on the joint a slight tilting movement can perform without the tightness of the Pump piston in the pump cylinder is impaired.
  • the seal can also be radial Project or project in the direction.
  • FIG. 1 is a first embodiment Hand pump according to the present invention in one schematic cross-sectional view shown.
  • the hand pump transfers the pumping movement from a pump lever 10 via a shaft 20 to a Cam 30, the cam 30 with a pump piston 50 of a pump cylinder 60 cooperates.
  • the pump piston 50 is non-positively over a joint 40 formed as an axis with the cam 30 connected.
  • the pump piston 50 fits into the concerned pump cylinder 60, the tightness by two strongly protruding in the radial direction, elastically resilient piston seals 70, 80 causes is. These seals 70, 80 allow the Pump piston 50 during its stroke movement as a result of positive connection to the axis 40 a can perform slight tilting movement without at the same time the tightness of the pump piston 50 in Pump cylinder 60 is impaired.
  • Figure 3 is a second embodiment Hand pump according to the present invention in one shown schematic cross-sectional view, wherein figure 4 shows a schematic sectional view of the hand pump from FIG Figure 3 along the section line IV - IV in Figure 3 reproduces.
  • the hand pump according to the second embodiment differs from that in FIGS. 1 and 2 shown hand pump according to the first Embodiment essentially in that the Pump cylinder 60 with the pump piston 50 from the pump lever 10 seen from the cam 30, but rather is in front of the cam 30.
  • the solution according to the two in the Figures 1 to 4 illustrated embodiments a smaller number of components as a result cheaper and easier mountable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Eye Examination Apparatus (AREA)
EP19990108348 1998-04-28 1999-04-28 Pompe manuelle Expired - Lifetime EP0953763B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29807533U DE29807533U1 (de) 1998-04-28 1998-04-28 Handpumpe
DE29807533U 1998-04-28

Publications (3)

Publication Number Publication Date
EP0953763A2 true EP0953763A2 (fr) 1999-11-03
EP0953763A3 EP0953763A3 (fr) 2000-08-16
EP0953763B1 EP0953763B1 (fr) 2006-06-21

Family

ID=8056321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990108348 Expired - Lifetime EP0953763B1 (fr) 1998-04-28 1999-04-28 Pompe manuelle

Country Status (2)

Country Link
EP (1) EP0953763B1 (fr)
DE (3) DE29807533U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121445A1 (fr) 2015-07-22 2017-01-25 Weber-Hydraulik GmbH Presse hydraulique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1845696U (de) 1961-09-28 1962-01-25 Georg Horndasch Kolbenpumpe fuer handbetrieb.
DE1254966B (de) 1964-06-16 1967-11-23 Eugen Schlenker & Co O H G Durch Handhebel zu betaetigende Kolbenpumpe
DE3112733A1 (de) 1981-03-31 1982-10-21 Pierburg Gmbh & Co Kg, 4040 Neuss Pumpe zur foerderung von gasen oder fluessigkeiten
FR2566053A1 (fr) 1983-12-09 1985-12-20 Albin Alexis Pompe hydraulique manuelle a debit et couple d'entree variables, assujetties a l'effort de l'utilisateur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB610541A (en) * 1945-11-15 1948-10-18 Messier Aircraft Equipment Ltd Improvements in or relating to variable-stroke pumps
DE812281C (de) * 1949-06-10 1951-08-27 Flensburger Pumpenfabrik Heinr Doppeltwirkende Kolbenpumpe fuer Handantrieb
DE1099356B (de) 1958-10-27 1961-02-09 Metallwaren Und Maschinenfabri Hydraulische Pumpe, vornehmlich fuer Kraftfahrzeugwerkstaetten
GB926961A (en) * 1959-07-10 1963-05-22 Pass & Co Ltd E Improvements in or relating to hydraulic pumps
DE8127508U1 (de) * 1981-09-19 1982-02-11 Elektro-Thermit Gmbh, 4300 Essen Handbetaetigte hydraulische pumpe
DE9414875U1 (de) * 1994-09-13 1996-01-25 Aldinger, Heinz, Dipl.-Ing. (FH), 74363 Güglingen Hydraulische Handpumpe, insbesondere zum Kippen von Fahrzeugkabinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1845696U (de) 1961-09-28 1962-01-25 Georg Horndasch Kolbenpumpe fuer handbetrieb.
DE1254966B (de) 1964-06-16 1967-11-23 Eugen Schlenker & Co O H G Durch Handhebel zu betaetigende Kolbenpumpe
DE3112733A1 (de) 1981-03-31 1982-10-21 Pierburg Gmbh & Co Kg, 4040 Neuss Pumpe zur foerderung von gasen oder fluessigkeiten
FR2566053A1 (fr) 1983-12-09 1985-12-20 Albin Alexis Pompe hydraulique manuelle a debit et couple d'entree variables, assujetties a l'effort de l'utilisateur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3121445A1 (fr) 2015-07-22 2017-01-25 Weber-Hydraulik GmbH Presse hydraulique

Also Published As

Publication number Publication date
EP0953763B1 (fr) 2006-06-21
DE59913577D1 (de) 2006-08-03
DE29807533U1 (de) 1998-09-24
EP0953763A3 (fr) 2000-08-16
DE29906713U1 (de) 1999-10-28

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