Paint roller and paint tool

Abstract

Paint roller (1, 22) with a replaceable cover in the form of a tube, made of a textile material and at least partially provided with a covering, comprising a tube section (6) and two clamping caps (8, 27), each of which can be detachably connected to the tube section (6) at an axial end, wherein the end sections (4, 5) of the tube can be clamped between the tube section (6) and the clamping caps (8, 27). A painting tool is also described.

Description

[0001] Conventional paint rollers can be attached to a pole with a handle, thus forming a painting tool. When a different color is used or the roller needs replacing, it is detached from the pole and discarded. A paint roller consists of a tube section onto which a pad is attached. The pad can be made of materials such as nap, fur, or foam. With a conventional paint roller, the pad is permanently attached to the tube section. Therefore, after use, the paint roller must be disposed of with regular household waste.

[0002] In terms of resource conservation, it is considered a disadvantage that the entire paint roller has to be disposed of as residual waste after use.

[0003] The invention is therefore based on the objective of providing a paint roller that enables more environmentally friendly use.

[0004] To solve this problem, a paint roller with the features of claim 1 is provided.

[0005] The paint roller according to the invention comprises a replaceable cover designed as a hose, which is made of a textile material and is provided at least partially with a bristle, as well as a tube section and two clamping caps, which can each be detachably connected to the tube section at an axial end of the tube section, wherein the end sections of the hose can be clamped between the tube section and the clamping caps.

[0006] The invention is based on the idea that a paint roller with a cover can be reused multiple times by using a replaceable cover designed as a tube. Optionally, the cover can have a central section with bristles, while its two ends are unbristled. This allows the cover to be connected to a section of the roller tube by simply pulling the cover over the tube. When the cover needs to be replaced, it is pulled off the tube and can either be disposed of separately as residual waste or cleaned for later reuse.

[0007] The invention eliminates the need to dispose of the tube section together with the cover or padding. Instead, the tube section can be reused multiple times. The cover, which is separate from the tube section, also allows for the separation of recyclable materials, so that the cover and the tube section can each be recycled separately. The cover thus enables significantly improved use of a paint roller with such a cover, in terms of environmental protection and resource conservation.

[0008] The cover is preferably made of an elastically stretchable textile material. In this design, the cover can be pulled over a section of pipe, where it then fits snugly. The elastic stretching exerts a constant pressure on the pipe section, ensuring the cover is securely held in place. This guarantees that the cover rotates along with the pipe section when the paint roller is used and does not slip on the pipe.

[0009] It is also preferred that a central section of the cover is provided with a reinforcement, whereas both end sections of the cover are unreinforced. Thus, the reinforcement is only present where it is needed.

[0010] The cover may be designed with a seamless knitted tube. In this case, there is no bothersome seam or other connection. Alternatively, the tube of the cover may be made from a flat material that has been subsequently cut and sewn to form the tube shape.

[0011] With regard to the covering of the inventive cover, it is preferred that it consists of pile, fur, foam or velour.

[0012] It is particularly preferred that the hose and the bristles are made of the same material. A single-material recyclable can be reused more easily. With regard to the material, it is preferred that the hose and the bristles are made of polypropylene (PP), polyethylene terephthalate (PET), or polyamide (PA).

[0013] In the paint roller according to the invention, the cover can be detachably connected to or attached to the tube section. The cover, made of an elastic, textile material, can be pulled over the tube section by the user. Since both ends of the tube preferably have no bristles, these thin sections can be clamped by means of the clamping cap, so that the bristles are held firmly on the tube section.

[0014] The tube section of the paint roller according to the invention can have end pieces inserted on both sides, which can be detachably connected to the clamping caps. In this embodiment, the ends of the tube that do not have any bristles can each be clamped between an end piece and a clamping cap. In contrast, the previously described one-piece tube section has no end pieces.

[0015] Within the scope of the invention, it can also be provided that either the pipe section or the inserted end piece and the clamping cap comprise or form a bayonet fitting. In this embodiment, the two components of the bayonet fitting are first moved axially towards each other, followed by a rotation in the circumferential direction, thereby achieving a secure connection between the two components.

[0016] Alternatively, it can be provided that either the pipe section or the end piece has an internal thread and the clamping cap a corresponding external thread, or that either the pipe section or the end piece has an external thread and the clamping cap a corresponding internal thread. In this case, the ends of the hose can be clamped between the pipe section and the clamping cap or between the end piece and the clamping cap when screwed together.

[0017] A further development of the invention provides that either the pipe section or the end pieces inserted therein have circumferentially arranged projecting protrusions at its outer axial end. These protrusions can, for example, be designed as teeth or as teeth. When the cover is clamped, the protrusions engage with the cover so that it cannot slip out.

[0018] In the paint roller according to the invention, either the tube section, the inserted end pieces, or the clamping caps can have an axially offset annular surface provided with a surface structure, preferably comprising radial ribs or grooves. The annular surface with the surface structure serves to generate a noise when the clamping cap is screwed onto the tube section or the end piece.

[0019] In cases where the pipe section or the inserted end pieces have an annular surface, the clamping caps may have an axially inwardly projecting elastic ridge designed to contact the surface structure of the annular area and produce a noise when the clamping cap is almost fully screwed in. This noise indicates to the user that the clamping cap is almost fully tightened.

[0020] Alternatively, if the clamping caps have the ring surface, the pipe section or the inserted end pieces may have an axially outwardly projecting elastic ridge designed to touch the surface structure of the ring surface and cause a noise once the clamping cap has been almost completely screwed in.

[0021] In the paint roller according to the invention, at least one clamping cap may have a hollow shaft in which an elastic ring can be received or is mounted, and which can be attached to or is mounted on one end of a handle of a painting tool. The elastic ring prevents the paint roller or the tube section from unintentionally detaching from the handle. The elastic ring is received and mounted within the hollow shaft.

[0022] To further simplify the operation of the paint roller according to the invention, the clamping cap can be provided with two recesses on its axial side. The user can insert two fingers into the recesses to rotate the clamping cap. In this way, the two clamping caps can be screwed together or detached from each other without tools.

[0023] Preferably, the outer surface of the pipe section has longitudinally extending ribs. The cover according to the invention can be designed to have a longitudinal structure adapted to the ribs. This structure can, for example, be knitted. The ribs of the pipe section interact with the structure of the cover in such a way that the cover is firmly attached to the pipe section.

[0024] A further development of the invention provides that the pipe section is formed by two pipe segments which can be connected to each other in the longitudinal direction by means of a plug connection in a form-fit and / or force-fit manner.

[0025] Preferably, in the paint roller according to the invention, an elastic ring can be received or is received in the area of ​​the plug connection, which can be attached or is attached to one end of a handle of a painting tool.

[0026] The painting tool according to the invention preferably comprises a handle and an angled metal rod on which a paint roller according to the invention is arranged, which is provided with a replaceable cover of the type described.

[0027] The invention is explained below with reference to exemplary embodiments and the drawings. The drawings are schematic representations and show: Fig. 1 is an exploded view showing the essential components of a paint roller according to the invention; Fig. 2 is an enlarged detail of one end of a cover according to the invention; Fig. 3 is a perspective view of an end piece; Fig. 4 is a perspective view of a clamping cap; Fig. 5 is the top of the clamping cap; Fig. 6 is a sectional view of a paint roller according to the invention; Fig. 7 is the upper end of the Fig. 6 The paint roller shown; Fig. 8 a second embodiment of a paint roller according to the invention in an exploded view; Fig. 9 a cutaway view of a paint roller according to the invention according to the second embodiment; Fig. 10 an enlarged view of the upper end of the Fig. 9 The paint roller shown; Fig. 11 the upper end of a pipe section according to a further embodiment of a paint roller according to the invention; Fig. 12 a sectional view of the pipe section of Fig. 11 ; and Fig. 13 a section along line XIII-XIII of Fig. 12 .

[0028] Fig. 1 This is an exploded view showing the components of a paint roller 1. The paint roller 1 includes a cover 2, which is knitted from a textile material. The cover 2 is shaped like a tube and is provided with a pile 3. Fig. 1 It can be seen that both end sections 4, 5 of the cover 2 are uncoated. The paint roller 1 also comprises a hollow cylinder tube section 6, two end pieces 7, each inserted into the tube section 6 on an axial side, and clamping caps 8. The clamping cap 8 has a hollow shaft in which an elastic ring 9 can be received, which can be placed on one end of a handle or one end of a rod of a painting tool. The tube section 6 is provided with identical end pieces 7 and clamping caps 8 at both ends. Fig. 1 Only the end piece 7 and the clamping cap 8 are shown on one side of the pipe section 6.

[0029] Fig. 2 Figure 1 shows an enlarged detail of an end section 5 of a cover 2. It can be seen that there is no pile 3 on the end section 5. The textile material from which the tubular cover 2 is formed is designed such that it is stretched at least slightly when pulled onto the tube section 6, so that the cover 2 fits snugly on the tube section 6. The diameter of the cover 2 in its unstretched state is therefore slightly smaller than the outer diameter of the tube section 6. The axial length of the pile 3 corresponds essentially to the length of the tube section 6, so that the end sections 4 and 5, which do not have a pile 3, extend beyond the tube section 6 on both sides.

[0030] Fig. 3 Figure 1 shows the end piece 7 in a perspective view. The end piece 7 has a cylindrical base shape. On the side facing the pipe section 6, the end piece 7 has several circumferentially distributed retaining surfaces 10 that extend radially outwards. Their position and size are selected such that the end piece 7 can be pressed into one end of the open pipe section 6 and is held there by positive locking and / or frictional locking. The end piece 7 has a hollow shaft 11, which is provided with an internal thread 12 (not shown in detail). At its outer end, the end piece 7 has circumferentially arranged axially projecting protrusions 13, which in this embodiment are designed as four-sided pyramids. In other embodiments, the protrusions can, for example, also be designed as teeth or pins. It is also possible for the protrusions to be rounded.

[0031] The end piece 7 comprises an annular surface 14 that is axially offset inwards from the projections 13 and is provided with a surface structure. In this embodiment, the surface structure is formed by radially extending grooves 15.

[0032] Fig. 4 Figure 1 is a perspective view of the clamping cap 8. The clamping cap 8 comprises a hollow shaft 16 with an external thread 17 at its free end, which can be screwed into the internal thread 12 of the end piece 7. On its underside, the clamping cap 8 has two elastic projections 18 extending axially. The two projections 18 are arranged on opposite sides of the clamping cap 8 and are wedge-shaped, their thickness decreasing towards their free end. The projections 18 are aligned with the radial grooves 15 of the end piece 7 such that they contact it when the clamping cap 8 is almost completely screwed into the end piece 7. In this state, the projections 18 contact the radial grooves 15 and are elastically deformed. When the clamping cap 8 is rotated, a noise is produced as the projections 18 move over the grooves 15.The user receives acoustic feedback indicating that the clamping cap 8 has been screwed sufficiently far into the end piece 7.

[0033] Fig. 5 Figure 19 shows the top side of the clamping cap 8. Two recesses 20 and 21 are provided on the axial side, allowing the user to rotate the clamping cap 8 with their thumb and forefinger. Two symbols, a closed and an open lock, and arrows indicate the direction in which the clamping cap 8 must be turned to tighten or loosen the screw.

[0034] Fig. 6 The figure is a cutaway view showing the paint roller 1 in its assembled state with two end pieces 7 pressed into the tube section 6 and two clamping caps 8 screwed into the respective end piece 7 on both axial sides. Fig. 6 It can be seen that the end sections 4, 5 of the cover 2, which do not have a pile 3, are clamped between the end piece 7 and the clamping cap 8. The projections 13 on the end piece 7 prevent the cover 2 from being pulled out. Fig. 6 It is also evident that the paint roller 1 has a symmetrical design.

[0035] Fig. 7 shows the upper end of the in Fig. 6 The paint roller 1 shown is in a cutaway view. It can be seen that the end sections 5 of the cover 2 are clamped between the end piece 7 and the clamping cap 8 and that the projections 18 contact the grooves 15 of the axial ring surface 14 when the clamping cap 8 is screwed into the end piece 7.

[0036] All components of the paint roller 1 are made of polypropylene (PP). The cover can be made of PET, PA, or polyacrylic.

[0037] It is essential that the cover 2 is replaceable. This allows all other components of the paint roller 1, especially the tube section 6, to be reused multiple times. The cover 2 is clamped by the clamping caps 8 at both ends of the tube section 6. After removing the clamping caps 8, the cover 2 can be removed and replaced with a new one. It is also possible to clean a used cover 2 and reuse it. The ribs on the tube section 6 ensure that the cover 2 stays securely in place.

[0038] Fig. 8 Figure 1 shows a second embodiment of a paint roller in an exploded view. The same reference numerals are used for those components that are identical to those of the first embodiment. These components are not explained in detail again.

[0039] The paint roller 22, in accordance with the first embodiment, comprises a tube section formed from two identical tube segments 23, 24. Both tube segments 23, 24 include plug connections 25, 26, by which they can be plugged into one another. Male plug connections 25 and female plug connections 26 are arranged alternately in the circumferential direction. The cylindrical outer surfaces of both tube segments 23, 24 are provided with ribs that extend longitudinally and ensure a secure hold of the cover on the assembled tube section.

[0040] Each pipe segment 23, 24 is assigned a clamping cap 27 having a through-opening. Both clamping caps 27 are identical. The clamping cap 27 is constructed similarly to the clamping cap 8, except for its length and the length of its external thread. Both axial sides of the pipe segments 23, 24 have – analogous to the end pieces 8 – an axially inwardly offset annular surface, the surface structure of which is formed by radial grooves 28. The clamping cap 27 can be inserted into a Fig. 8 The concealed internal thread is screwed in, which is located in the center of the radial grooves 28. The in Fig. 8 The lower clamping cap 27 shown has on its underside the axially inwardly projecting projection 29, which interacts with the grooves 28 when the clamping cap 27 is screwed in and produces a noise when the tip of the projection 29 is moved over the grooves 28.

[0041] Both pipe segments 23, 24 have axially projecting protrusions arranged circumferentially at their outer axial ends. In this embodiment, the cross-section of the protrusions is formed as a right-angled trapezoid, the oblique side of which points outwards. Analogous to the protrusions 13 of the first embodiment, the protrusions 30 serve to clamp the cover.

[0042] Fig. 9 Figure 22 is a cutaway view of the paint roller 22, which is provided with the cover 2. In accordance with the first embodiment, the central part of the cover 2 comprises pile 3 as a covering, while both end sections 4, 5 have no covering. The clamping caps 27 are each screwed with their external thread into the internal thread 31 of the tube segment 23, 24. In this assembled state, the projections 29 contact the grooves 28.

[0043] Fig. 10 is an enlarged view of the upper end of the in Fig. 9 The paint roller 22 shown shows that in this state, the end sections 4 and 5 of the cover 2 are folded inwards around the axial end of the tube segment 23. The end sections 4 and 5 are clamped between the axially projecting projections 30 and the underside of the outer circumference of the clamping cap 27. Accordingly, the cover 2 is firmly connected to the tube segment by the clamping on both sides.

[0044] In this embodiment, the pipe segment and the end pieces are designed as a single, integrated component. All components of the paint roller 22 are made of polypropylene (PP).

[0045] In the Fig. 11 , 12 und 13 is a pipe section 32 according to a further embodiment of a paint roller, wherein Fig. 11 a perspective view of the outer end 33 is, Fig. 12 is a cutaway view and Fig. 13 shows a section along line XIII-XIII of Fig. 12 .

[0046] Unlike the preceding embodiments, the outer end 33 of the pipe section 32 is rounded to facilitate the fitting of the cover 2. The pipe section 32 has a conically decreasing diameter at its outer end 33.

[0047] Especially in Fig. 11 It can be seen that rounded projections 34 are present at the outer end 33 of the tube section 32, which transition into longitudinal grooves 35 on the inside of the tube section 32. The rounded projections 34 allow for more comfortable handling when the cover 2 is manually pulled over the tube section 32. Nevertheless, together with the clamping cap, they ensure that the cover 2 is securely fixed. Reference symbol list

[0048] 1 Paint roller 2 Cover 3 Pile 4 End section 5 End section 6 Tube section 7 End piece 8 Clamping cap 9 Elastic ring 10 Holding surface 11 Shank 12 Internal thread 13 Projection 14 Ring surface 15 Groove 16 Shank 17 External thread 18 Projection 19 Top 20 Recess 21 Recess 22 Paint roller 23 Tube segment 24 Tube segment 25 Plug connection 26 Plug connection 27 Clamping cap 28 Groove 29 Projection 30 Projection 31 Internal thread 32 Tube section 33 Outer end 34 Projection 35 Groove

Claims

1. Paint roller (1, 22), with a replaceable cover designed as a tube, which is made of a textile material and is provided with a covering at least in sections, comprising: - a tube section (6, 32), - two clamping caps (8, 27), each of which can be detachably connected to the tube section (6, 32) at an axial end of the tube section (6, 32), wherein the end sections (4, 5) of the tube can be clamped between the tube section (6, 32) and the clamping caps (8, 27).

2. Paint roller according to claim 1, wherein the tube section (6) has end pieces (7) inserted on both sides which can be detachably connected to the clamping caps (8, 27).

3. Paint roller according to claim 1 or 2, wherein either the tube section or the inserted end piece and the clamping cap comprise a bayonet fitting.

4. Paint roller according to claim 1 or 2, wherein either the tube section (6, 32) or the end piece (7) has an internal thread (12, 31) and the clamping cap (8, 27) has a corresponding external thread (17), or that either the tube section or the end piece has an external thread and the clamping cap has a corresponding internal thread.

5. Paint roller according to one of the preceding claims, wherein either the tube section (6, 32) has circumferentially arranged projecting projections (13, 30, 34) at its outer axial ends or the inserted end pieces (7) have circumferentially arranged projections at their outer axial ends.

6. Paint roller according to one of the preceding claims, wherein either a) the tube section (6, 32) or the inserted end pieces (7) or b) the clamping caps (8, 27) has or have an axially inwardly offset annular surface (14) which is provided with a surface structure which preferably has radial ribs or grooves (15).

7. Paint roller according to claim 6, wherein, if the tube section (6, 32) or the inserted end pieces (7) have the annular surface (14), the clamping caps (8, 27) have an axially inwardly projecting elastic projection (18, 29) which is designed to contact the surface structure of the annular surface (14) and to cause a noise as soon as the clamping cap (8, 27) is almost completely screwed in.

8. Paint roller according to claim 7, wherein, if the clamping caps have the ring surface, the tube section or the inserted end pieces have an axially outwardly projecting elastic projection which is designed to touch the surface structure of the ring surface and to cause a noise as soon as the clamping cap has been almost completely screwed in.

9. Paint roller according to one of the preceding claims, wherein at least one clamping cap (8, 27) has a hollow shaft (16) in which an elastic ring (9) can be received or is received, which can be attached or is attached to an end of a handle of a painting tool.

10. Paint roller according to one of the preceding claims, wherein the clamping cap (8, 27) has two recesses (20, 21) on its outside.

11. Paint roller according to one of the preceding claims, wherein the outside of the tube section (6, 32) has longitudinally extending ribs or grooves.

12. Paint roller according to one of the preceding claims, wherein the tube section (6, 32) is formed by two tube segments (23, 24) which can be connected to each other in the longitudinal direction by means of a plug connection (25, 26) in a form-fit and / or force-fit manner.

13. Paint roller according to claim 12, wherein an elastic ring (9) is received or accommodated in the area of ​​the plug connection (25, 26), which can be attached or is attached to an end of a handle of a painting tool.

14. Paint roller according to one of the preceding claims, wherein a middle section of the cover (2) is provided with a bristle, whereas both end sections (4, 5) of the cover (2) do not have a bristle.

15. Painting tool comprising a handle and an angled metal rod on which a paint roller (1, 22) according to one of the preceding claims is arranged, which is provided with the replaceable cover (2) designed as a tube, which is made of a textile material.

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