Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16N—LUBRICATING
  • F16N3/00—Devices for supplying lubricant by manual action
  • F16N3/10—Devices for supplying lubricant by manual action delivering grease
  • F16N3/12—Grease guns

Definitions

• the invention relates to a grease gun with actuation by a hand lever according to the preamble of claim 1, as used above all in the maintenance of technical systems on land and on board ships.
• a grease gun corresponding to the generic term in which the grease container is tubular and round in cross section.
• the high-pressure part is screwed to the grease container by a thread attached to the outer edge of the tubular grease container, so that it can be unscrewed and refilled from a larger storage container, for example a grease bucket of a commercially available size.
• the low-pressure piston in the tubular grease container is pulled back and locked into the end position facing away from the high-pressure part by a drawing stick against the action of the spring pressing the grease from the grease container into the high-pressure part, in order to enable the grease container to be refilled.
• the grease container and the high-pressure part are then screwed together again and the locking of the drawing rod is released, so that the low-pressure piston, under the spring load, presses grease from the grease container into the high-pressure part, from which it is pressed with the lever mechanism via a grease outlet into a lubrication point.
• the fat outlet and the Lubrication point shaped with complementary profiles. Fat presses with a content of 500 cubic centimeters of the fat container are commercially available, occasionally also those with a content of 1,000 cubic centimeters of the fat container.
• the invention solves this problem by means of the training features according to the characterizing part of patent claim 1.
• FIG. 2 shows a side view of a grease gun offset by 90 degrees compared to FIG. 1,
• FIG. 3 shows a section along the line III-III of FIG. 2
• FIG. 4 shows a side view with partial section of the ends of a grease cartridge
• FIG. 5 shows a top view of the front end of a grease cartridge
• Figure 6 is a plan view of an additional part
• FIG. 7 shows a cross section through the additional part according to FIG. 6.
• the grease gun according to the exemplary embodiment has an elongated grease container 1 with a rectangular cross section, at one end of which the high-pressure part 2 is fastened from a housing 3 with a high-pressure piston movable therein, which cannot be seen in the drawing.
• the high-pressure piston can be actuated via a lever mechanism 4 by means of a hand lever 5.
• a grease outlet 6 attached to the housing 3 is connected via a high-pressure hose 7 to a mouthpiece 8, the opening of which is profiled to complement the shape of a grease nipple or the like.
• a further grease outlet 9 is provided with a shut-off valve 10, which can be operated by hand.
• this handle part 11 is designed in the shape of a bow and its ends are attached to the outside of the fat container 1.
• the hand lever 5 is in Cross-section U-shaped profiled and with its legs at least partially overlaps the bow shape of the handle 11.
• the grease filling is accommodated in a cartridge 12 which can be inserted through the open end of the grease container 1 opposite the high-pressure part 2.
• This grease cartridge 12 is adapted to the rectangular shape of the grease container 1 as shown in FIG.
• the end of the grease cartridge 12 facing the high pressure part 2 is covered with a protective cap 13 for transport.
• the opposite end of the grease cartridge 12 is closed by a stopper 14 against which the low-pressure piston 15 is effective and which can be pressed by the low-pressure piston 15 through the cartridge against the high-pressure part 2.
• the low-pressure piston 15 is arranged in a removable part 16, which is detachably connected to the edge of the grease container 1 by means of clamping lever locks 17.
• a nose 18 on the lower edge of the cartridge 12 engages in a recess in the grease container 1 and secures the cartridge 12 against displacement and is used for easier removal of the empty cartridge or the like.
• the low-pressure piston 15 is cushioned in the removable part 16 by a coil spring 19 in the direction of the high-pressure part 2, so that the low-pressure piston 15 constantly loads the stopper 14 with the spring force in order to press grease from the cartridge 12 into the high-pressure part.
• the low-pressure piston 15 is pulled back into the end position shown in FIG. 1 by a drawing rod 20, and the spring 19 is tensioned in the process.
• the drawing stick 20 is locked by a cross pin 21, which is movable through a key slot in the part 16 and engages behind the edge of the key slot by turning the drawing stick 20.
• the drawing stick 20 is connected to a handle 22. In the retracted position, which is shown in FIG.
• the clamping lever locks 17 can be released and the part 16 can be removed from the grease container 1 in order to exchange an empty cartridge 12 for a full one. Then the removable part 16 is placed back on the edge of the grease container 1 and the clamping lever locks 17 are closed, whereupon the locking of the drawing rod or the low-pressure piston 15 is released by turning the drawing rod 20 and thus the pin 21, so that the latter again the key slot can happen so that the low pressure piston 15 is effective with the spring force 19 against the plug 14.
• the drawing rod 20 can then be unscrewed in the exemplary embodiment shown and inserted into side holder 23 on the fat container 1.
• a stopper seal 24 adapted to the inner contour of the fat container 1 according to FIGS. 6 and 7 can be placed on the low pressure piston 15 and connected to the low pressure piston 15 by means of a threaded screw 25, which for this purpose has an internal thread recognizable in FIG. 1.
• the grease gun can then be filled with grease in a conventional manner from a larger storage container.
• holders 26 can be provided on the outside of the grease container, into which the stopper seal 24 can be inserted when not in use.
• Corresponding holders can also be provided for exchangeable mouthpieces 8 or the like on the outside of the fat container 1.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Coating Apparatus (AREA)
• Mechanical Engineering (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6404094

Family Applications (1)

Country Status (3)

Families Citing this family (4)

Citations (6)

Family Cites Families (7)

• 1990
  • 1990-04-10 DE DE19904011500 patent/DE4011500C1/de not_active Expired - Lifetime
• 1991
  • 1991-03-15 AU AU74645/91A patent/AU7464591A/en not_active Abandoned
  • 1991-03-15 WO PCT/EP1991/000500 patent/WO1991015710A1/de unknown

Patent Citations (6)

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