Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
  • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
  • B05C17/00503—Details of the outlet element
  • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
  • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
  • B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
  • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
  • B05C17/00586—Means, generally located near the nozzle, for piercing or perforating the front part of a cartridge
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
  • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
  • B05C17/00596—The liquid or other fluent material being supplied from a rigid removable cartridge having no active dispensing means, i.e. the cartridge requiring cooperation with means of the handtool to expel the material

Definitions

• This invention relates to a disposable self-opener, first to open a tubular bag cartridge, and then to push out the pasty mass contained therein from the cartridge.
• Such pasty masses are used to seal or glue joints and for this purpose must be pressed through a nozzle to the application site.
• the pasty mass, whether sealant or adhesive, is packaged for small quantities in single-use plastic cartridges that are designed as cylinders, with the nozzle at the front end. A piston can then be pushed into the cylinder from behind so that the mass is pressed out through the nozzle.
• Plastic disposable cartridges are not suitable for larger packaging units, because otherwise there would be too much waste.
• plastic is not suitable as packaging material for many such pasty products because the products in plastic have a limited shelf life.
• An aluminum foil on the other hand, or even just a foil that has been vapor-coated or coated with aluminum, forms a reliable oxygen, light and moisture barrier and guarantees a practically unlimited shelf life and therefore storability for the products to be packaged.
• many pasty products of this type are usually used, for example adhesive for gluing automotive Disks or for sealing compounds, such as those that are processed in large quantities, especially in construction, are packed in such foil material in a sausage-like manner to form so-called tubular bag cartridges.
• the two ends are closed with metal clips.
• Such sausage-packed pasty masses are offered in "sausage sizes" of approximately 10 mm to 100 mm in diameter and up to approximately 50 cm in length.
• a sausage is placed in a dispenser device, which essentially forms a hollow cylinder on the front of which a nozzle with an upstream self-opener can be screwed on, and a piston can be inserted from the rear, with which the film material of the rear sausage end is then directly pressurized.
• the nozzle is screwed as a disposable part onto a so-called self-opener, which in turn is inserted into a union nut and The sausage-like tubular bag cartridge must be opened after it has been inserted into the dispenser device.
• the self-opener is also a disposable plastic Molded part executed
• the self-opener is provided with cutting edges on the inside, so that the film on the front of the packaging, ie at the end of the sausage, is cut open when the self-opener is screwed on.
• the pasty mass then swells under the pressure applied by the piston through the resulting slots and forces the film material to the side. After the pasty mass has been used up, the film packaging is removed from the dispenser and disposed of together with the self-opening device and the nozzle.
• a disposable self-opening device for opening a tubular bag cartridge and expressing a pasty mass from the same, consisting of a conical tube shoulder with a mouth made by plastic injection, the self-opening device being insertable into an associated union nut and thus on a pipe end can be screwed on, and on its inside has gable-shaped pairs of cut edges with a gable tip in the screwing direction, and which is characterized in that a retaining basket for receiving the metal clip of the sausage-like tubular bag cartridge to be opened is arranged in the center on the inside.
• Figure 1 The disposable self-opener seen from the outside seen from the side
• Figure 2 The disposable self-opener shown in perspective view seen obliquely towards its interior
• Figure 3 The disposable self-opener when placed on a dispenser shown in a longitudinal section;
• Figure 4 The disposable self-opener placed on a dispenser shown in a longitudinal section, before applying pressure to the other end of the sausage-like tubular bag cartridge.
• the disposable self-opener is first shown from the outside, seen from the side.
• the whole self-opener is a single-use product made by plastic injection in one operation. It essentially forms a tube shoulder 1 with a mouth 2, it being possible for the self-opening mechanism to be inserted into a union nut (not shown here). In the picture, this is placed concentrically over the self-opener from right to left.
• the self-opener has an all-round, flat shoulder 3 running in its plane of rotation, on which the put-on union nut rests. The union nut with the self-opener inserted in it is then screwed with its internal thread onto the end of a tube with an external thread.
• the usual dispenser devices therefore regularly have a hollow cylinder or a tube open on both sides, into which the pasty mass together with the tubular bag cartridge can be pushed.
• the self-opener shown here is screwed onto such a tube end for use as a disposable product with the left side in the picture.
• the foil-like tubular bag cartridge is cut open at the same time by means of special cutting edges arranged on the inside of the self-opener.
• a ring wall 5 connects to the flat shoulder 3, the function of which will become clear later.
• the tube shoulder 1 formed by the self-opener tapers conically Mouth 2, which has an external thread 4, and onto which a nozzle suitable for the respective special application can be screwed.
• the self-opener now has in the center a retention basket 10 acting against the screwing direction, which in the example shown rests on four supports 11, the feet of which are molded onto the inside of the cone 1.
• the retention basket 10 serves to hold the metal clip with which the sausage-like tubular bag cartridge is closed at its end.
• the retention basket 10 itself can be designed as a funnel made of solid material, or as a lattice-like basket or simply as a bowl. It does not need to be conical in shape, but could also have a trough-shaped design, even a can-shaped retention basket with a flat surface and a cantilevered edge could perform the same function. Instead of four supports 11, this retention basket 10 could also be held by two or more support elements running radially to the ring wall 5. These can be found on the inside of the be conical tube shoulder 1 supported or cantilevered only connected to the inside of the ring wall 5 and carry the retention basket 10 in the center.
• the device is shown in a longitudinal section when placed on a dispenser.
• the sausage-like packaging or tubular bag cartridge 12 which contains the pasty mass to be pressed out, is shown on the left in the picture.
• the film material of the packaging is held together by a metal clip 13 like a sausage.
• the dispenser includes a hollow cylinder 14 or a tube 14 made of metal or plastic.
• This tube 14 has an external thread 15 made of plastic at its end, and this is laminated or welded onto the tube 14.
• the self-opener is already inserted into the union nut 16 here.
• the union nut 16 lies with its flat cover surface 17 on the flat shoulder 3 of the self-opener.
• the clear width of the cover surface 17 of the union nut 16 is dimensioned such that the self-opening device can be accommodated therein.
• the union nut 16 can have a non-slip coating 18 on the outside, so that one does not slide off when screwing on and thus greater torques can be applied.
• two mutually opposite cutting edge pairs 6 with their retaining webs 9 and the circumferential ring wall 5 can be seen.
• the retaining basket 10 with its supports 11 can be seen.
• the latter has a pin 21 pointing in the axial direction, which extends beyond the basket by approximately its radius.
• This pin is not absolutely necessary, it does help to hold the metal clip 13 securely in the retention basket 10 by impaling it to a certain extent.
• the inside of the supports 11 are aligned with the inside of the mouth 2. From the outside the mouth 2 put on or screwed on shows a nozzle 19, which is selected in shape and length depending on the type of pasty mass.
• the nozzle 19 has a shoulder 20 for attaching or screwing on. From the position shown in Figure 3, the union nut 16 is screwed onto the pipe end and takes the self-opening. The cutting edges of the cutting edge pairs 6 cut the same after hitting the film of the sausage-like packaging.
• Figure 4 shows the device with the union nut 16 screwed onto the pipe end 14 of a dispenser.
• the cut edges on the self-opener have already cut open the film and the retention basket 10 has enclosed the metal clip 13 of the sausage-like packaging.
• the pasty mass oozes out of the slots and has already flowed through the path marked by arrows due to the additional pressure applied via the piston of the dispenser. It will finally exit through the mouth 2 and the nozzle 19 attached.
• the ring wall 5 at the same time encloses the sausage end and ensures an efficient seal with respect to the inner wall of the tube 14, so that it never comes into contact with escaping paste and thus always remains clean.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Geometry (AREA)
• Control And Other Processes For Unpacking Of Materials (AREA)
• Devices For Opening Bottles Or Cans (AREA)
• Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Applications Claiming Priority (3)

Publications (2)

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Family Applications (1)

Country Status (6)

Cited By (1)

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Family Cites Families (14)

• 2000
  • 2000-03-24 AU AU32696/00A patent/AU3269600A/en not_active Abandoned
  • 2000-03-24 AT AT00910478T patent/ATE232757T1/de not_active IP Right Cessation
  • 2000-03-24 EP EP00910478A patent/EP1185378B1/fr not_active Expired - Lifetime
  • 2000-03-24 US US10/018,903 patent/US6564970B1/en not_active Expired - Fee Related
  • 2000-03-24 DE DE50001283T patent/DE50001283D1/de not_active Expired - Fee Related
  • 2000-03-24 WO PCT/CH2000/000176 patent/WO2000076676A1/fr active IP Right Grant

Non-Patent Citations (1)

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