The present disclosure relates to paint rollers. More specifically, the present disclosure relates to paint rollers having shields or guards for applying paint to surfaces which are adjacent to trim, window moldings, and the like.
Paint rollers are popular tools for applying paint to large surface areas. Paint rollers typically include a handle, a shaft extending from the handle, and a roller rotatably coupled to the shaft. Although well-suited for applying paint to large expansive areas, such conventional rollers are not well-suited for applying paint to corners, to junctions between adjacent walls, along window trim, or along floor moldings, without smearing paint on the adjacent surface.
In recognition of such shortcomings, paint rollers have been provided with guards or shields mounted to an axial end of the roller. Examples of such paint rollers include U.S. Pat. Nos. 2,763,022; 3,623,180; 3,685,084; and 3,213,477. Although representing an advance in the art, such rollers are tedious and time consuming to use because repeated loading of the paint roller requires repeated detachment and attachment of the shield to and from the roller.
To facilitate loading of paint, alternative paint rollers have been developed in which the guard or shield may be pivoted away from the roller. Examples of such paint rollers are disclosed in U.S. Pat. Nos. 3,204,276; 3,369,269; and 5,444,891. Although facilitating paint loading, such paint rollers have their associated drawbacks as well. For example, such shields or guards are typically supported by an arm which is difficult to grasp and manipulate positioning of the shield without the painter's hands becoming covered with paint. In addition, such rollers require that the roller and adjacent shield be pressed towards the surface being painted with a relatively large amount of force to apply paint as close as possible to the adjacent surface such as trim. As a result, the roller does not roll and frequently skids along the surface being painted. Moreover, such paint rollers are often fatiguing to use and aesthetically unattractive.
U.S. Pat. No. 5,623,740 discloses a paint roller in which the roller pivots away from the guard. In addition to having the aforementioned problems, the applicator having a roller that rotates away from the shield frequently results in paint splattering.
Exemplary aspects and features of a paint applicator in accordance with the present disclosure are described and explained in greater detail below with the aid of the drawing figures in which:
Handle 20 provides a surface about which a painter may grasp applicator 10. Although handle 20 preferably includes hang hole 26 and an exterior layer 28 of a soft, elastomeric material such as Santroprene® thermoplastic elastomers (Advanced Elastomer Systems, Akron, Ohio) overlying a rigid core 30 of material such as plastic, metal, or wood, handle 20 may omit such features and be made from a variety of other materials. Further, although handle 20 is preferably substantially solid, handle 20 may alternatively include hollow portions to reduce its weight and manufacturing costs.
Frame 22 generally comprises a rod, shaft, or other rigid structure projecting from handle 20, and coupled to bearing member 24. Frame 22 is preferably configured such that roller 14 rotates about a roller axis 32 substantially perpendicular to a longitudinal axis 38 of handle 20. Although preferably formed from metal, frame 22 may alternatively be formed from plastic and may have other shapes or configurations.
Bearing member 24 (shown in
Roller 14 generally comprises an elongate cylindrical member having an outer circumferential surface configured to be rolled along a surface and to apply (or remove) paint to the surface. This circumferential surface may be provided by various materials including fabric nap, mohair, natural or synthetic sponge, felt, and the like. The surface may be uniform or may be patterned. Although the surface is preferably liquid permeable so as to absorb, carry, and release liquid coatings, the exterior circumferential surface of roller 14 may alternatively comprise rubber, elastomeric, or other materials which simply apply paint deposited upon their surface. In the particular embodiment illustrated, the material or materials providing the exterior surface of roller 14 are affixed to a rigid tubular core which mounts upon bearing member 24 (shown as a cage). Alternatively, the material or materials forming the exterior circumferential surface of roller 14 may be integrally formed with or permanently affixed to a structure which is connected to frame 22. Furthermore, roller 14 may alternatively be configured to be permanently or releasably attached to an end of frame 22.
Trim system 16 is pivotally coupled to roller support 12 for rotation about pivot axis 36 (shown in
By pivoting trim system 16 and shield 46 about pivot axis 36, shield 46 is pulled away from end 18 of roller 14. Shield 46 may be pivoted into close proximity with end 18 with a minimal risk of shield 46 accidentally brushing against the paint covered surface of roller 14. As a result, manufacturing tolerances for trim system 16 may be increased to reduce manufacturing costs and complexity while enhancing the paint trimming performance of applicator 10.
Trim system 16 generally includes arm 44, shield 46, and grip 48. Arm 44 comprises an elongate member pivotally coupled to roller support 12 and supporting shield 46. Although arm 44 is generally illustrated as an elongate rigid metallic band, arm 44 may be formed from a variety of alternative materials and may have a variety of alternative shapes. Arm 44 pivots about pivot axis 36 between a paint applying position (illustrated in
In the preferred embodiment, arm 44 is inset or received within a slit or recess 50 formed within handle 20. As a result, handle 20 stabilizes the positioning of arm 44 and enables applicator 10 to be a compact painting tool When in the paint loading position (shown in FIG. 7), arm 44 projects from recess 50 and extends in a direction perpendicular to longitudinal axis 38 and parallel to roller axis 32.
Shield 46 includes a blade portion 54. Blade portion 54 comprises a substantially rigid panel and provides at least one trim edge 58. In the particular embodiment illustrated in
Grip 48 comprises a projection or tab coupled to or integrally formed as part of arm 44 and configured to be gripped or grasped by the painter when actuating trim system 16 (i.e., arm 44 and shield 46) between the paint applying position (shown in
Grip 48 and opening 66 may have various other alternative shapes. Overall, grip 48 intuitively identifies trim system 16 and the pivotal movement of trim system 16. Further, grip 48 facilitates easy gripping and movement of trim system 16. Actuation of trim system 16 from the paint applying position to the paint loading position (or vice versa) does not involve grasping arm 44 or shield 46. Accordingly, the painter's hands do not become covered with paint upon actuation of trim system 16. Because grip 46 is coupled to arm 44 at a location between axial ends 40 and 42 of handle 20, grip 48 is situated well away from roller 14 and shield 46, thereby preventing the painter's hands from becoming covered with paint upon actuating grip 48. Alternatively, grip 48 may be provided with other grip-enhancing structures. For example, grip 48 may omit opening 66 and may alternately include a grooved surface, a dimpled surface, or a surface having a soft, compressible material such as an elastomeric material or a foam or sponge material.
Pivot portion 156 extends between blade portion 54 and arm 44, and provides a pivot point for blade portion 54 and arm 44. In particular, blade portion 54 is pivotally coupled to pivot portion 156 for rotation about axis 160, and arm 44 is pivotally coupled to pivot portion 156 for rotation about axis 162. The pivot points 160 and 162 for shield 146 enable the positioning of shield 146 to be adjusted relative to roller 14, i.e., roller 14 and handle 20 may be held at varying angles with respect to shield 146 as roller 14 is rolled along the surface being painted.
Trim edges 58 are spaced from one another by a distance X, usually approximately 3.5 inches, in order to accommodate the use of a large diameter roller 14. In this exemplary embodiment, roller 14 typically has a diameter D of at least about one inch and nominally about 1.5 inches. Diameter D may be lesser than about one inch, but this is undesirable because greater application force on handle 20 and roller 14 may then be required, thereby increasing the likelihood of the roller 14 skidding across the surface being painted. As a result, in the exemplary system, a larger diameter roller more easily rolls across the surface being painted despite the force at which roller 14 is pressed against the surface being painted. Accordingly, applicator 11 more quickly and efficiently applies paint to the surface when a larger diameter roller 14 is used.
Alternative actuation mechanism 110 is activated in lieu of grip 48 to pivot or swing shield 46 between the paint loading position (disengaged position) and the paint applying position (engaged position). In particular, actuation mechanism 110 includes bar 112 and actuator 114. Bar 112 is coupled to arm 44 and extends into an interior cavity of handle 20. Bar 112 is pivotably coupled to handle 20 for rotation or pivotal movement about axis 116. Bar 112 additionally includes a cam follower surface 118 provided by slot 120.
Actuator 114 comprises a button, slide, or similar mechanism slidably coupled to handle 20 to facilitate movement of trim system 16 relative to the remainder of handle 20. Actuator 114 includes a cam surface 122 provided by pin 124. Pin 124 projects at least partially through slot 120 such that cam surface 122 engages cam follower surface 118. As shown by
Guide support 213 comprises an elongate, rigid structure having an elongate slot 221 through which post 124 projects into slot 120. Support 213 further pivotally supports actuator 217 for rotation about axis 223. Actuator 217 is in turn pivotally coupled to link 219 which is pivotally coupled to pin support 215. Pin support 215 extends below guide support 213. As shown by
As best shown by
As shown by
Applicator 310 provides several advantageous features. First, because shield 346 is resiliently biased in a direction perpendicular to the rotational axis of roller 14, shield 346 automatically repositions itself and maintains trim edge 354 against the surface being painted irregardless of changes in the amount of force with which roller 14 is pressed against the surface being painted. Thus, paint may be applied closer to the trim or other adjacent surface without becoming accidentally deposited upon the trim. Second, because shield 346 is not fixedly coupled to an axial end of roller 14, shield 346 may be swung out of position by movement of arm 44 to enable roller 14 to be quickly and easily loaded with paint. Thirdly, because arm 44 is pivotally coupled to shield 346 about a single axis 372, the positioning of shield 346 may be adjusted with respect to handle 20 and arm 44.
Shield 446 generally includes face plate or blade 450, guide 452, and slide 454. Blade 450 comprises a rigid and thin member providing a lower trim edge 456 which bears against the surface being painted and along the trim or other adjacent surface adjacent the surface being painted. As shown by
Guide 452 comprises a rigid member fixed to blade 450. Guide 452 cooperates with blade 450 to form an interior cavity 460 in which slide 454 is received. Guide 452 and blade 450 cooperate to further slidably capture slide 454 therebetween. Although guide 452 is illustrated as comprising a separate component fastened to blade 450 by rivets, guide 54 may alternatively be fastened to blade 450 by adhesives, mechanical interlocks, or other fastening methods. Moreover, guide 452 may alternatively be integrally formed as part of a single unitary body with blade 450. In yet alternative embodiments, other conventionally known or future developed mechanisms may be employed to slidably or movably support slide 454 relative to blade 450.
Slide 454 comprises a member pivotally coupled to arm 44 for rotation about axis 462 and slidably received within cavity 460. Slide 454 is preferably configured to slide relative to blade 450 in a direction perpendicular to axis 462. Slide 454 additionally includes springs 464, 466. Springs 464, 466 are integrally formed as part of a single unitary body with slide 454 and extend within cavity 460 into engagement with a lower surface of guide 452. Springs 464, 466 resiliently bias slide 454 away from trim edge 456. Said in another way, springs 464, 466 resiliently bias trim edge 456 towards the surface being painted in a direction perpendicular to axis 462. Because springs 464, 466 are preferably integrally formed as part of a single unitary body with slide 454, shield 446, and applicator 410 require fewer parts, lowering manufacturing costs and complexity. Alternatively, shield 446 may include separate springs formed from polymeric materials or metals which are mounted or coupled between slide 454 and guide 452. Examples include leaf springs, coil springs, tension springs, and the like.
Although shield 446 is illustrated as including a single trim edge 456 which is resiliently biased in one direction towards the paint applying surface by at least one spring 464, 466, shield 446 may alternatively include a second substantially linear trim edge opposite trim edge 456. In such an alternative embodiment, slide 454 would additionally include separate or integrally formed springs configured bear against guide 452 to resiliently bias the second opposite trim edge away from the first trim edge 456. Such an alternative embodiment would enable the paint applicator to be used along opposing trim surfaces without requiring the applicator to be flipped. The same bi-directional modifications may also be applied to paint applicator 310.
Springs 564, 566 comprise elongate, resiliently flexible bands of elastomeric material integrally formed as a single unitary body with slide 454. Like springs 464, 466, springs 564, 566 resiliently bias trim edge 456 towards the surface being painted to accommodate different amounts of pressure being applied to applicator 510 towards the surface being painted. Like applicator 410, applicator 510 may alternatively include springs which are independent of slide 454 and made from various other materials such as metal and the like. Moreover, springs 564, 566 may alternatively be integrally formed as part of a single unitary body with guide 452.
Although paint applicator 510 is illustrated as including grip 48, paint applicator 510 may alternatively include the actuation mechanisms 110 or 210.
Overall, applicators 10, 11, 310, 410 and 510 provide a paint trimming or edging roller that is ergonomic, intuitive to use, less fatiguing, and less prone to skidding, sturdy, and simple to manufacture. The enlarged diameter of roller 14 facilitated by the increased size of the shield 46, 446, or 546 enables paint to be applied to the surface by the applicators with less force and less time. Grip 48 or actuation mechanisms 110, 210 enable the shield to be moved between the paint applying position and the paint loading position while the painter's hands remain distant from the paint covered roller 14. Shields 346, 446, and 546 automatically adapt to varying degrees of force applied to the applicator by the painter to ensure consistent results. Shields 446 and 546 further reduce the frictional resistance between the roller and the shield for improved painting performance by providing at least one trim edge providing an outwardly tapered surface.
Although the present disclosure has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the disclosure. For example, although different preferred embodiments may have been described as including one or more features providing one or more benefits, it is contemplated that the described features may be interchanged with one another or alternatively be combined with one another in the described preferred embodiments or in other alternative embodiments. Because the technology of the present disclosure is relatively complex, not all changes in the technology are foreseeable.
Although the foregoing text sets forth a detailed description of numerous different embodiments of the invention, it should be understood that the legal scope of the invention is defined by the words of the claims set forth at the end of this patent. The detailed description is to be construed as exemplary only and does not describe every possible embodiment of the invention since describing every possible embodiment would be impractical, if not impossible. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the filing date of this patent, which would still fall within the scope of the claims defining the invention.
This claims the benefit under 35 U.S.C. §119(e) of U.S. provisional patent application Ser. No. 60/342,293, filed Dec. 21, 2001, the disclosure of which, in its entirety, is incorporated herein by reference.
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Number | Date | Country | |
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