1. Field of Invention
This invention relates a roller assembly for use in applying a coating to a surface, and more particularly, to a paint roller assembly.
2. Description of Related Art
It is known to use paint roller assemblies having a handle with a roller support and a rotatable roller cover to apply paint to a wall. Normally, the roller cover is removably mounted on the roller support so that the roller cover can be detached from the support after use and cleaned or replaced as desired. Additionally, the useful life of the roller cover is often quite limited when compared to that of the handle and roller support. As such, the roller cover is usually removed from the handle after each use.
Typically, roller covers are frictionally secured to the roller support. One disadvantage associated with this type of roller assembly, is that, in order to remove the roller cover from the roller support, it is usually necessary to grasp the outer surface of the roller cover and slide it off of the roller support. As the roller cover being removed is normally covered with wet paint, the process of removing the roller cover from the roller assembly can be messy and often leads to paint getting on the hands and clothes of the person removing the roller cover. If one waits until the paint on the roller cover dries before removing the cover, the paint between the roller cover and the roller support dries and seals the roller cover to the roller support. Thus, in order to remove the roller cover from the paint roller assembly it is sometimes necessary to break the dried paint away from the end caps of the roller support, thereby allowing the roller cover to be removed from the roller assembly. Alternatively, it may be necessary to slice, or cut the roller cover along a length thereof, allowing the roller cover to be peeled away from the roller assembly.
Based on the foregoing, it would be desirable to provide a paint roller assembly with a roller cover that can be removed quickly and easily without having to grasp or touch the paint-covered roller cover.
One embodiment of the invention is directed to a quick-release paint roller having a roller cover that can be removed from a handle assembly without requiring the user to apply a force directly to the roller cover. The paint roller includes a roller cover including a roller tube having an outer surface of paint absorbing material, an inner end cap and an outer end cap. The end caps have axial bores therein and are disposed at opposing ends of the roller tube. The inner end cap has a hub with a nipple extending there from, the nipple having a head portion and an annular groove between the head portion and the hub. The paint roller also includes a handle assembly. The handle assembly includes a housing having a first surface facing the inner end cap of the roller cover, wherein the housing has an opening in the first surface configured to receive the nipple of the roller cover. The handle assembly also includes a roller support having an elongate shaft, the elongate shaft being received by the bores of the inner and outer end caps to rotatably support the roller cover about an axis of rotation along the elongate shaft. The handle assembly further includes a latching mechanism movable between a latched position and a release position, the latching mechanism including an actuator and a latch. When the actuator is in the latched position, the latch engages the annular groove of the nipple to couple the roller cover to the handle assembly and prevent movement of the roller cover in a direction along the axis of rotation away from the housing, and when the actuator is in the release position, the latch is free of the nipple. The handle assembly also includes a latch spring for biasing the actuator toward the latched position, and an ejector spring acting upon the nipple, wherein the ejector spring urges the nipple out of the opening, wherein when the latch is free of the nipple, the ejector spring ejects the roller cover from the handle assembly, thereby permitting the roller cover to be removed from the handle assembly without requiring the user to apply a force directly to the roller cover.
In another embodiment, the invention is directed to a quick-release paint roller having a roller cover that can be removed from a handle assembly without requiring the user to apply a force directly to the roller cover. The paint roller includes a roller cover comprising a roller tube having an outer surface of paint absorbing material and an inner end cap having a nipple extending there from. The paint roller also includes a handle assembly. The handle assembly includes a housing and a roller support having an elongate shaft, the elongate shaft being received by roller cover rotatably mount the roller cover about an axis of rotation along the elongate shaft. The handle assembly also includes a latching mechanism movable between a latched position and a release position, the latching mechanism comprising an actuator and a latch, wherein when the actuator is in the latched position, the latch engages the nipple to couple the roller cover to the handle assembly and prevent movement of the roller cover in a direction along the axis of rotation away from the housing, and wherein when the actuator is in the release position, the latch is free of the nipple, wherein the actuator extends from the housing to form an actuating surface located on the handle assembly away from the axis of rotation of the roller cover to thereby permit the roller cover to be removed from the handle assembly without requiring the user to apply a force directly to the roller cover.
These and other features and advantages of this invention are described in, or are apparent from, the following detailed description of various exemplary embodiments of the systems and methods according to this invention.
The above mentioned and other features of this invention will become more apparent and the invention itself will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:
Corresponding reference characters indicate corresponding parts throughout the views of the drawings.
The invention will now be described in the following detailed description with reference to the drawings, wherein preferred embodiments are described in detail to enable practice of the invention. Although the invention is described with reference to these specific preferred embodiments, it will be understood that the invention is not limited to these preferred embodiments. But to the contrary, the invention includes numerous alternatives, modifications and equivalents as will become apparent from consideration of the following detailed description.
Referring now to
The handle assembly 12 desirably has a length of about 18 inches for one or two handed use. In the embodiment illustrated in
Referring now to
As best seen in the enlarged view of
As best seen in
In the embodiment illustrated in
The latch spring 84 is disposed in the chamber 74 of the housing 18 and urges the trigger 32 toward a neutral position. Desirably, the neutral position of the trigger 32 is the latched condition illustrated in
The ejector spring 82 is disposed between the body 86 of the trigger 32 and the head 52 of the nipple 50. The ejector spring 82 is biased to urge the nipple 50 out of the chamber 74 of the housing 18 so as to eject the roller cover 14. However, as long as the trigger 32 is in the latched condition, the latch 90 retains the nipple 50 in the housing 18 against the bias of the ejector spring 82 and the roller cover 14 remains on the roller support 34. When the trigger 32 is actuated and the detent 92 clears the ridge 56 on the nipple 50, the ejector spring 82 forces the nipple 50 out of the housing 18 and thus decouples the roller cover 14 from of the latching mechanism 30 so that the roller cover 14 can freely slide off the mounting shaft 36. Desirably, the hub 48 of the inner end cap 46 has a diameter only slightly smaller than the diameter of the bore 78 in the housing 18. Thus, when the roller cover 14 is in the latched condition, the hub 48 is received within the bore 78 in the housing 18 and forms a frictional fit that discourages paint from entering into the chamber 74 of the housing 18.
To mount a roller cover 14 to the handle assembly 12, the roller cover 14 is slide onto the roller support 34 by inserting the mounting shaft 36 through the axial bores 58, 60 in the end caps 44, 46. The nipple 50 on the inner end cap 46 is then inserted into the bore 78 in the housing 18. The rounded head 52 of the nipple contacts the detent 92 on the trigger 32 causing the latch 90 to move upwards against the biasing force of the latching spring 84. When the detent 92 passes the head 52, it snaps into the annular groove 54. Thus, contact of the latch 90 against the ridge 56 of the nipple 50 keeps the roller cover 14 from leaving the roller support 34, yet permits the roller cover 14 to freely rotate on the mounting shaft 36 in order to apply the paint to the work surface. When it is desired to remove the roller cover 14 from the handle assembly 12, the user simply presses on the actuating surface 88 of the trigger 32 and urges the trigger against the spring force provided by the latch spring 84. This causes the latch 90 to move toward the end 31 of the housing 18 until the detent 92 clears the ridge 56 on the nipple 50 of the roller cover 14. When the detent 92 clears the ridge 56, the ejector spring 82 forces the nipple 50 out of the bore 78 in the housing 18 and the roller cover 14 is free to slide off the roller support 34. Therefore, pressing on the trigger 32 automatically ejects the roller cover 14 from the handle assembly 12 without requiring the user to come in contact with the wet paint covering the roller cover 14. Desirably, the nipple 50 allows the roller cover 14 to quickly be removed from the handle assembly 12 after only depressing the trigger 32 for the time required for the detent 92 to pass over the ridge 56 of the nipple 50.
Importantly, it is desirable that the actuating surface 88 of the trigger 32 be a sufficient distance from the end 31 of the housing 18 to reduce the likelihood that the actuating surface will be covered by paint. Paint rollers 10 are typically used by dipping the roller cover 14 into a tray filled with the paint to be applied to the work surface. As such, the end 31 of the housing 18 also may also come in contact with and be covered by the paint from the tray. Thus, the actuating surface 88 is desirably offset from the axis A of the roller cover 14 and mounting shaft 36 to position the actuating surface in a location that will not routinely come in contact with the paint. In the embodiment illustrated in
Turning now to
The outer and inner end caps 44, 46 of the invention can be removed from the roller cover 14 and reused by simply inserting the end caps in the opposing ends of a new roller cover 14. Alternatively, a roller cover 14 can have the end caps 44, 46 manufactured integral thereto or provided therewith. Further, the end caps 44, 46 could be made separately available for modifying a standard roller cover 14 to be used with the handle assembly 12 of the present invention.
While this invention has been described in conjunction with the specific embodiments described above, it is evident that many alternatives, combinations, modifications and variations are apparent to those skilled in the art. Accordingly, the preferred embodiments of this invention, as set forth above are intended to be illustrative only, and not in a limiting sense. Various changes can be made without departing from the spirit and scope of this invention.
The present application claims priority under 35 U.S.C. §119(e) to U.S. provisional patent application No. 60/638,449, filed Dec. 22, 2004.
Number | Date | Country | |
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60638449 | Dec 2004 | US |