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
  • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
  • B05C17/03—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller
  • B05C17/0308—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller the liquid being supplied to the inside of the coating roller

Definitions

• the invention relates to a paint roller with an internally fed paint applicator roller with a sleeve-shaped roller core having through-openings for the paint, which is coated on the outside with a fleece or the like and is rotatably supported with the involvement of a distributor body around a tubular axis having outlet openings for the paint is connected to a line ' for the supply of paint and which is connected with a handle.
• Such a paint roller is known from DE-GM 85 25 264.6. It has a screwed part which clamps the roller core together with the lids serving as bearings and is screwed into the axis in order to hold the inking roller on it.
• roller core can be plugged onto the distributor body and is held in a rotationally and axially fixed manner on the distributor body by the fit of the plug connection, and in that the distributor body can be plugged onto the axis and by the fit of the plug connection is axially fixed rotatably mounted on the axis.
• the invention provides a paint roller with an internally fed paint roller in the plug-in system.
• the distributor body is plugged onto the axle and the roller core onto the distributor body and is held solely by the self-locking plug connection.
• No special tools are required for plugging the parts together and pulling them apart, so that cleaning, replacing wear parts, etc. is very simple. Thanks to the plug-in connection, a smooth lateral termination of the inking roller can be realized in an uncomplicated manner you can paint over their full width and especially well into corners and edges.
• a plug-in system is known for paint rollers with ink rollers for immersion. Mind you, the invention realizes a plug-in system for inking rollers with internal feed, in which the ink is supplied with high overpressure.
• the distributor body is provided with a clamping sleeve which can be plugged onto the axis and holds it in a clamping manner.
• the clamping sleeve can have a sleeve body made of elastic material, in particular plastic, which is preferably axially slotted and is provided with a chamfer which makes it easier to plug it onto the axis. With such a clamping sleeve, a reliable axial positioning of the distributor body on the axis is achieved with an uncomplicated structure.
• the distributor body can be cylindrical and terminated at one end with a preferably flat end face and have an axial bore which is open towards the other end and with which it fits onto the axis.
• the flat front end is advantageous for ' painting in corners and edges.
• the clamping sleeve is preferably aligned axially, limited on at least one side and with at least as much radial Learn game recorded in the distributor body that it can spread when plugged onto the axis.
• the loose reception of the clamping sleeve in the distributor body enables production and assembly tolerances to be compensated and simple disassembly for cleaning purposes.
• a bearing over-determination is avoided with a distributor body mounted on the inner casing of the axial bore.
• the distributor body preferably consists of two detachably connected half parts which form a chamber for receiving the clamping sleeve at their joint.
• the half parts are preferably screwed together by means of a thread formed thereon. This does not go hand in hand with the aforementioned disadvantages of a screw connection, since the half parts are large, easy-to-grip parts that can be screwed apart and screwed together by hand without the use of tools.
• a guide ring which limits the insertion depth of the distributor body, can be firmly attached to the axis. This is used for lateral guidance and sealing of the ink roller.
• the axial bore of the distributor body can be expanded to accommodate the guide ring. This also ensures a smooth end of the inking roller on the plug-in side.
• An annular groove for a sealing ring can be provided on the outer periphery of the guide ring, by means of which the distributor body is sealed on the stop ring. A perfect seal of the ink roller to the side is achieved,
• the guide ring and the expanded clamping sleeve can form a bearing for the distributor body. They are then preferably made of a low-friction material, e.g. B. polytetrafluoroethylene. However, the distributor body can also be mounted on the axis with the inner jacket of its axial bore.
• the distributor body is provided with tap holes which communicate with its axial hole.
• the outlet openings of the axis and the tap holes are arranged axially at the same height and offset in the circumferential direction in such a way that when the inking roller rotates about the axis they come to coincide in succession. In this way a uniform distribution of the ink in the longitudinal direction of the inking roller is achieved without a drop in pressure occurring towards the free end of the axis.
• the outlet openings are preferably axially aligned and the tap holes are arranged along a helical line. A reverse arrangement with axially aligned tap holes and outlet openings of the axis arranged along a helical line is also possible.
• the tap holes preferably start from circumferential notches in the distributor body. A uniform distribution of the ink in the circumferential direction of the inking roller is ensured by the notches.
• One or more tap holes can be provided per notch.
• the optimal number of stitch holes depends on the viscosity of the paint.
• a distributor body with only one tap hole per notch is preferably used, while for the application of pasty paint there are preferably two tap holes diametrically opposite one another per notch on the same diameter. Thanks to the plug-in system according to the invention, corresponding distributor bodies can be easily exchanged.
• the notches can be widened in the mouth area of the tap holes. This facilitates the introduction of the color into the notches.
• the distributor body can have cone parts that taper towards the notches and are divided by circumferential webs over which the roller core fits. In this way, ink chambers are formed between the cone parts and the roller core, via which the ink is evenly distributed in the axial direction. The roll core is over due to the surrounding webs the full length of the inking roller is properly supported on the distributor body.
• a preferably conical outer extension is provided, on which the roller core is clamped.
• a self-locking plug-in connection for the roller core is realized in a complex manner, the plug-in depth of which can be limited to the distributor body by an edge web which is integrally formed thereon and projects outwards.
• annular grooves for sealing rings can be provided, by means of which the roller core is sealed on the distributor body.
• FIG. 1 shows a paint roller with an internally fed paint roller
• Fig. 2 is an exploded view of the paint roller
• FIG. 3 shows a longitudinal section through the inking roller.
• the paint roller has a holding shaft in the form of a tube 10 bent from steel, at one end of which a paint roller 12 is seated.
• the other end of the tube 10 is provided with a connecting piece 14 to which a line for under high Liquid liquid pressure is connected.
• the connection piece 14 is located on a straight holding section 16 of the tube, which is covered with a long grip piece 18 made of polyurethane foam.
• the tube 10 is bent in an S-shape to the side and back, so that a tube portion lying in front of the holding portion 16 and extending transversely thereto is formed, which serves as an axis 20 for the ink roller 12.
• This tube section is closed on the end face. It has a number of radial outlet openings 74 for the ink through which the inking roller 12 is fed from the inside.
• the inking roller 12 includes a distributor body 24 made of plastic, which is attached to the tube section serving as the axis 20 and is easily rotatably mounted thereon.
• An inking roller 26 with a roller core 28 is attached to the outside of the distributor body 24, the outside of which is covered with fleece 30, plush or another material that can be saturated with ink.
• the roller core 28 is provided with a large number of through openings 32 for the ink.
• the distributor body 24 is cylindrical and terminated at one end with a flat end face 34. It has a central axial bore 36 which is open towards the other end forming the plug-in side. The axial bore 36 is dimensioned so that the distributor body 24 with Rotation play fits on axis 20.
• a guide ring 38 made of plastic is drawn onto the axis 20 and sits firmly on the axis 20 close to the S-bend of the tube 10.
• the axial bore 36 of the distributor body 24 is expanded at its plug-in end to a cylindrical receptacle 40 for the guide ring 38, in which the latter comes to lie sunk.
• An annular groove 44 for a sealing ring 46 is provided on the outer periphery of the guide ring 38. This is pressed for lateral sealing of the plugged-on distributor body 24 by the jacket 48 of the receptacle 40 designed as a sealing surface.
• the guide ring 38 can serve as a bearing for the distributor body 24 ** , for which purpose it is preferably made of a low-friction plastic, e.g. B. polytetrafluoroethylene.
• the distributor body 24 is longitudinally divided into two half parts 50, 52 with slight asymmetry.
• the plug-in inner half part 50 is somewhat longer than the outer half part 52.
• an axially projecting threaded pin 54 of smaller diameter with an external thread is formed.
• the plug-on end of the outer half part 52 is designed as a suitable threaded bushing 56 with an internal thread.
• the half parts 50, 52 are screwed together.
• the outer lateral surfaces of the half-parts 50, 52 have a smooth transition.
• the half parts 50, 52 form a chamber 58 for receiving a clamping sleeve 60 which can be on the axis 20 auf ⁇ stuck and clampingly retains it at its "burst.
• the clamping sleeve 60 has a made of an elastic plastic, zylindri ⁇ rule sleeve body 62, which is axially slotted 64 so that it can be expanded in the circumferential direction At its two ends the sleeve body 62 has a chamfer 66 on the inner ring, which has a centering and guiding function when the axis 20 is inserted Both ends of the sleeve body 62 have two equivalent installation positions.
• the chamber 58 for receiving the clamping sleeve 60 is formed by a cylindrical extension of the axial bore 36 in the area of the screw connection of the half parts 50, 52.
• the threaded pin 54 is drilled out over the full length, and a ring shoulder of the same diameter is formed on the bottom of the threaded bushing 56.
• the clamping sleeve 60 is loosely received in the chamber 58 with axial alignment. It has somewhat axial play in the circumferential direction between the ring steps 70, 72 of the axial bore 36 delimiting the chamber 58 and radial clearance so that it can spread out on the axis 20 when it is plugged on. The insertion depth is limited by the stop of the axis 20 on the bottom of the axial bore 36.
• the on the Axle 20 attached ink roller 12 is axially positioned by the clamping sleeve 60 and mounted on the axis 20 with almost no play.
• the expanded clamping sleeve 60 can serve as a second bearing for the distributor body 24, for which purpose, like the stop ring 38, it is preferably made of a low-friction plastic, eg. B. polytetrafluoroethylene.
• the axis 20 has five outlet openings 74 for the paint which are arranged in axial alignment at the same distance.
• the outlet openings 74 are essentially blocked by the jacket surface of the axial bore 36 when the distributor body 24 is plugged on.
• the distributor body 24 has, on the outer periphery, five notches 76 which are spaced apart from the outlet openings 74 and which extend in radial planes, from each of which a radial tap bore 78 branches off, which meets the axial bore 36 of the distributor body 24.
• the tap holes 78 are arranged along a screw line and are distributed uniformly over the circumference of the distributor body 24.
• the tap holes 78 come to coincide with the outlet openings 74, whereupon paint enters through them into a notch 76, while the other outlet openings 74 are essentially blocked.
• a very uniform distribution of the ink along the inking roller 12 is thus achieved without a drop in pressure in its longitudinal direction.
• two diametrically opposed tap holes 78, 80 per notch 76 can also be provided, as is exemplarily indicated in FIG. 3.
• Manifolds 24 with only one tap hole 78 per notch 76 are suitable for spreading thin-fluid paint, and manifolds 24 with two or more tap holes 78, 80 per notch 76 are well suited for spreading pasty paint.
• the notches 76 are widened 82 in the mouth region of the tap bores 78, 80.
• the outer jacket of the distributor body 24 is subdivided into ten cone parts 84, which adjoin a notch 76 in pairs and taper towards the latter.
• the cone portions 84 are divided by four peripheral webs 86 over which the roller core 28 of the ink roller 26 fits.
• Ink chambers 90 are formed between the inner jacket 88 of the roller core 28 and the cone portions 84, via which the ink is uniformly distributed in the longitudinal and circumferential directions.
• the distributor body 24 has a circumferential, radially outwardly projecting edge web 92 at the plug-in end, which limits the plug-in depth of the roller core 28 to the distributor body 24.
• the outer jacket of the Distribution body 24 has a conical widening 94 to which the roller core 28 is stuck when it is plugged on. The inking roller 26 is thus securely held on the distributor body 24.
• annular grooves 96 for two sealing rings 98 are provided at the axial ends of the distributor body 24 and are pressed through the inner jacket 88 of the roller core 28 which is plugged onto the distributor body 24.
• the invention provides a paint roller 12 with an internally fed paint roller 12 in a plug-in system.
• the inking roller 26 is placed on the distributor body 24, and this on the axis 20, without special fastening means being present. Replacing the parts is very easy.
• the attachment of the inking roller 12 to the axis 20 by means of the clamping sleeve 60 contained in the screw-on distributor body 24 is assembly-friendly and safe, and the inking roller 12 runs smoothly.
• the cleaning of the distributor body 24, and in particular its bearing parts, is extremely convenient.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Coating Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6382785

Family Applications (1)

Country Status (4)

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Family Cites Families (10)

• 1989
  • 1989-06-15 DE DE19893919546 patent/DE3919546A1/de active Granted
• 1990
  • 1990-06-09 WO PCT/DE1990/000440 patent/WO1990015672A1/de not_active Application Discontinuation
  • 1990-06-09 AU AU57436/90A patent/AU5743690A/en not_active Abandoned
  • 1990-06-09 EP EP19900908486 patent/EP0429594A1/de not_active Withdrawn

Non-Patent Citations (1)

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