EP0429594A1

EP0429594A1 - Paint roller

Info

Publication number: EP0429594A1
Application number: EP19900908486
Authority: EP
Inventors: Roland Becker
Original assignee: Applitec Vertrieb und Service Von Spezialgeraten fur Handwerker GmbH
Current assignee: Applitec Vertrieb und Service Von Spezialgeraten fur Handwerker GmbH
Priority date: 1989-06-15
Filing date: 1990-06-09
Publication date: 1991-06-05
Also published as: DE3919546A1; WO1990015672A1; DE3919546C2; AU5743690A

Abstract

Un rouleau à peinture comprend un cylindre applicateur (26) alimenté de l'intérieur et qui fait partie d'un système d'enfichage. Le noyau (28) du cylindre applicateur (26) est enfiché sur un élément distributeur (24) qui est à son tour enfiché sur un axe (20) pourvu d'orifices de sortie (74) pour la peinture. Les pièces sont retenues ensemble par le seul ajustement à frottement doux de la liaison par enfichage.A paint roller includes an internally supplied applicator cylinder (26) which is part of a plug-in system. The core (28) of the applicator cylinder (26) is plugged into a dispensing element (24) which is in turn plugged into an axis (20) provided with outlet orifices (74) for painting. The parts are held together by the only gentle friction adjustment of the plug connection.

Description

Color roll 1 he

description

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. These and other forms of screw fastening of an ink roller and the connection of their individual parts by screws leave something to be desired in terms of ease of use. It is cumbersome to assemble and disassemble the inking roller from the axis and to disassemble and reassemble it for cleaning purposes, since screw threads and heads easily stick to paint and the use of a special screwing tool is required, which is not always available ¬ supply. It is the object of the invention to provide a paint roller of the type mentioned which is inexpensive and robust in construction, with which a very uniform application of paint is achieved in particular in the area of corners and edges of the surfaces to be painted and which can be easily assembled, disassembled and removed without the use of tools can be cleaned.

This object is achieved with a paint roller of the type mentioned in that the 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. According to the prior art, there are no special fastening elements. 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.

In a preferred embodiment, 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. In addition, 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.

At the front end in the plug-on direction, 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.

In a preferred embodiment, 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, preferably evenly distributed over the circumference, can be provided per notch. The optimal number of stitch holes depends on the viscosity of the paint. In the case of low-viscosity 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.

At the rear end of the distributor body in the direction of insertion, a preferably conical outer extension is provided, on which the roller core is clamped. As a result, 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. At the ends of the distributor body, annular grooves for sealing rings can be provided, by means of which the roller core is sealed on the distributor body.

The invention is explained in more detail below with reference to an embodiment shown in the drawings. Show it:

1 shows a paint roller with an internally fed paint roller; Fig. 2 is an exploded view of the paint roller; and 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. Subsequently, 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. Furthermore, 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. At the end of the inner half part 50 opposite the plug-in side, 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.

In the exemplary embodiment shown, 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. When the distributor body 24 rotates on the axis 20, 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. Instead of only one tap hole 78 per notch, two diametrically opposed tap holes 78, 80 per notch 76 can also be provided, as is exemplarily indicated in FIG. 3. In general, it is possible to arrange a plurality of branch bores 78, 80 which are uniformly offset over the circumference of the distributor body 24 per notch 76. 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. To seal the parts mentioned, 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.

List of reference numbers

Pipe 62 sleeve body ink roller 64 slot connector 66 chamfer holding section 70 ring step handle 72 ring step axis 74 outlet opening distributor body 76 notch inking roller 78 tap hole roller core 80 tap hole fleece 82 ^' extension through hole 84 cone end face 86 web axial bore 88 inner jacket stop ring 90 ink chamber mount 92 edge web ring groove 94 widening sealing ring 96 ring groove jacket 98 sealing ring half part half part threaded pin threaded bushing chamber 'clamping sleeve

Claims

Expectations

1. Paint roller with an internally fed paint applicator roller with a sleeve-shaped roller core with through openings for the paint, which is covered on the outside with a fleece or the like and is rotatably supported by a distributor body with the involvement of a distributor body, about which axis a Lei¬ device for the supply of paint connected and connected with a handle, characterized in that the roller core (28) can be plugged onto the distributor body (24) and by the fit of the plug connection - rotationally and axially fixed to the distributor body ( 24) is held, and that the distributor body (24) can be plugged onto the axle (20) and is rotatably mounted on the axle (20) so as to be axially fixed by the fit of the plug connection.

2. Paint roller according to claim 1, characterized in that the distributor body (24) with a clamping sleeve (60) is ver¬ see, which can be plugged onto the axis (20) ^' and holds it by clamping.

3. Paint roller according to claim 1 or 2, characterized gekennzeich¬ net that the clamping sleeve (60) one made of elastic material rial, in particular plastic, existing sleeve body (62), which is preferably axially slotted (64) and can be provided with a chamfer (66) facilitating the attachment to the axis (20).

4. Paint roller according to one of claims 1 to 3, characterized in that the distributor body (24) is cylindrical and at one end is closed with a preferably flat end face (34) and has an axial bore (36) open towards the other end, with which it fits on the axis (20), and that the clamping sleeve (60) is axially aligned, stop-limited on at least one side and accommodated in the distributor body (24) with at least as much radial play that the clamping sleeve ( 60) can spread when plugged onto the axle (20).

5. Paint roller according to one of claims 1 to 4, characterized in that the distributor body (24) consists of two releasably interconnected half-parts (50, 52) which has at its joint a chamber (58) for receiving the clamping sleeve (60 ) form.

6. Paint roller according to one of claims 1 to 5, characterized in that a thread is formed on the half parts (50, 52) of the distributor body (24) for a screw connection.

7. Paint roller according to one of claims 1 to 6, characterized in that on the axis (20) a Aufsteck¬ depth of the distributor body (24) limiting guide ring (38) is fixedly attached.

8. Paint roller according to one of claims 1 to 7, characterized in that the axial bore (36) at the front in the insertion direction of the distributor body (24) to a receptacle (40) for the guide ring (38) is expanded.

9. Paint roller according to one of claims 1 to 8, characterized in that an annular groove (44) for a sealing ring (46) is provided on the outer periphery of the Füh¬ ring (38) through which the distributor body (24) on the guide ring (38) is sealed.

10. Paint roller according to one of claims 1 to 9, characterized in that the guide ring (38) and / or the expanded clamping sleeve (60) form a bearing for the distributor body (24).

11. Paint roller according to one of claims 1 to 10, characterized in that the distributor body (24) is provided with Stich¬ bores (78, 80) which communicate with the axial bore (36), and that the outlet openings (74) the axis (20) and the branch bores (78, 80) are arranged axially at the same height and offset in the circumferential direction in such a way that when the distributor body (24) rotates about the axis (20) they come to coincide in succession.

12. Paint roller according to one of claims 1 to 11, characterized in that the outlet openings (74) axially aligned, and the stitch bores (78, 80) are arranged along a helix.

13. Paint roller according to one of claims 1 to 12, characterized in that the tap holes (78, 80) from um¬ running notches (76) of the distributor body (24).

14. Paint roller according to one of claims 1 to 13, characterized in that one or more, preferably evenly distributed over the circumference tap holes (78, 80) are provided per notch (76).

15 .. paint roller according to one of claims 1 to 14, characterized in that the notches (76) in the mouth region of the stitch bores (78, 80) are expanded.

16. Paint roller according to one of claims 1 to 15, characterized in that the distributor body (24) cone parts (84) that taper towards the notches (76).

17. Paint roller according to one of claims 1 to 16, characterized in that the cone parts (84) are divided by umlau¬ fende webs (86) over which the roller pinion (28) fits.

18. Paint roller according to one of claims 1 to 17, characterized in that a preferably conical outer expansion (94) is provided on the rear end of the distributor body (24) in the plugging direction, on which the Walzen¬ core (28) is stuck.

19. Paint roller according to one of claims 1 to 18, characterized in that the insertion depth of the roller core (28) on the distributor body (24) is limited by an integrally molded thereon, outwardly projecting edge web (92).

20. Paint roller according to one of claims 1 to 19, characterized in that at the ends of the distributor body (24) annular grooves (96) for sealing rings (98) are provided, through which the roller core (28) on the distributor body (24) is sealed .