US2520863A - Painting roller of the detachable sleeve type - Google Patents

Description

g- 1950 E. E. THOMAS ET AL PAINTING ROLLER OF THE DETACHABLE SLEEVE TYPE Filed Dec. 10, 1947 INVENTORS Earl E Thomas BYSZand] y 7. (70143111411 3 ATTORNEY Patented Aug. 29, 195% SLEEVE TYPE PAINTING ROLLER OF THE DETACHABLE Earl E. Thomas, Detroit, and Standly T. Coughlan. Dear-born, Mich., assignors to Thomas Roller Painting Equipment Corporation, a corporation of Michigan Application December 10, 1947, Serial No. 790,748

This invention relates to roller appliances for reduced diameter by an applicator tube,' being thus stressed to hold the tube firmly in place.

Another object is to provide means for springing said roller to a slightly reduced diameter prior to installing an applicator tube, thus reducing the contraction to be imposed by the tube and rendering it easier to apply "the tube.

Another object is to employ caps slipped on the roller endsto reduce the roller diameter prior to installing the applicator tube and to further utilize such caps as Journal bearings mounting a shaft at the roller axis.

Another object is to reduce the roller end portions sufliciently to avoid interference by said caps with a firm mounting of the applicator tube on the roller.

Another object is to so notch the roller end portions as to interrupt the annular shoulders incident to the reduced roller ends, thus largely eliminating the stiffening effect of said shoulders.

Another object is to so form the rims of said caps that they may be encountered by'an applicator tube, as the latter is slipped on or off the roller, without materially impeding such tube.

These and various other objects are attained by the construction hereinafter described and illustrated in the accompanying drawing, wherein:

Fig. 1 is a front elevational view of our improved applicator, partially in section.

Fig. 2 is a perspective view of the roller of the applicator.

Fig. 3 is a front elevational view of a modified type of roller which may be substituted for that illustrated in Fig. 2.

In these views, the reference character I designates a roller formed of resilient sheet metal or like material and slotted from end to end, as indicated at 2, to permit contraction of said roller. A tube 3, preferably of fibrous material and having considerable stiffness, forms the core of a coating-receiving and applying sleeve 1 of felt or other material having a suitable pile, said tube being proportioned to predeterminedly compress the roller,'when slipped thereon. Prior to receiving the tube 3, however, the roller is placed under a slight compression by applying a 15 Claims. (Cl. 1527) pair of caps 5 to the roller extremities said caps having peripheral flanges 5a to embrace said extremities. In order that the tube 3 will primarily engage the roller I rather than said caps, the cap-receiving extremities 6 are slightly reduced in diameter and the flanges 5a thus lie at least slightly inward from the exterior face of the roller. The described reduction of the roller extremities forms substantially frusto-conical shoulders I adjoining said extremities and these tend to materially stiffen the roller and detract from its necessary resiliency. Such stiffening effect is very largely eliminated by forming each extremity G with a plurality of notches 8 of suilicient extent to interrupt the shoulders '1. Such notches, in maintaining the intended resiliency of the roller, also distribute such resiliency circumferentially of the roller.

The capst are centrally apertured to engage a shaft t and journal the roller on such'shaft, the roller and caps beingrestrained from sliding on or escaping from the shaft by enlargements ii and i l on the shaft, washers i la being preferably disposed between the caps and said enlargements. The enlargement ii is formed terminally of the shaft and the adjacent cap 5 has a central indentation 92 receiving said-enlargement, so that the latter may not scratchor mar any structure on which the appliance is used. The shaft is preferably formed as an integral extension of a shank i3 carrying the handle it of the appliance. said shank being elongated substantially transversely to the roller, equidistantly from the roller ends, and being joined to the shaft as indicated at it. It is preferred to form the flanges 5a of a maximum diameter in a spaced relation to their ends, gradually reducing the diameter toward both ends. This assures that the caps will not obstruct the tube 3 as it is being slid on or oil the roller. (See Fig. 1.) In assembling the roller and caps on the shaft, it is preferred to first apply the caps to the roller ends, and then slip the capped roller on the shaft until the leading cap encounters the enlargement ill, previously formed on the shaft. The shaft is then terminally upset at H to maintain the assembly.

The caps 5 by imposing an initial compression on the roller, materially educe the total compression necessary to firmly mount the tube and consequently said tube is easily applied. In applying the tube 3 to the roller, the resultant compression of the latter of course relieves the grip of the flanges 5a on the roller ends, affording the roller a slight radial play within said flanges. Such play is no detriment, and the caps 1 will still turn with the roller when the latter with its tube 3 and sleeve 4 is pressed against and travels on a surface to be painted. Said caps moreover so close the ends of the roller l and tube 3 as to prevent paint or the like accumulating in such ends.

The construction lends itself to low cost quantity production, the'caps 5 being simple stamplugs, and the roller being readily stamped with.

the shoulder I and notches 8, prior to rolling same to cylindrical form.

The roller lb illustrated in Fig. 3 has reduced extremities 6b and annular shoulders lb as in the first-described roller, and is similarly resiliently contractible and expansible. In place of being slotted from end to end, however, the roller lb has two slots i6, spirally extending from opposite ends of the roller and spaced substan tially 180 degrees apart, each extending more than one-half the roller length. This permits of such contraction and expansion as is necessary for our purpose. The stiffening effect of the shoulders lb is largely eliminated in this modification through interrupting each shoulder by a plurality of apertures 11 spaced circumferentially of such shoulder. As thus modified the roller may be formed from seamless or other tubular stock instead of being fashioned from a flat blank.

In either illustrated form of the roller, the gradual flare of the shoulders I is important in assuring that end thrust applied to one of such shoulders in slipping the tube 3 in place will act compressively on the roller rather than subjecting said tube to undue resistance.

What we claim is:

1. An appliance for painting and like operations, comprising a hollow roller slotted lengthwise to provide for its contraction and resiliently resisting contraction, a pair of caps fitted over the extremities of said roller and effecting a contraction of the roller, a shaft journaled in said caps, means on the shaft resisting disengagement of the caps from the roller, and a tubular work-engaging member proportioned to fit over and effect a further contraction of the roller.

2. An appliance for painting and like operations, as set forth in claim 1, the roller having its extremities reduced in diameter for engagement by said caps, the exterior diameter of at least one of the caps being predeterminedly less than the diameter imposed by the caps on the unreduced portion of the roller.

3. An appliance for painting and like opera tions, as set forth in claim 1, said roller having each of its extremities formed with a plurality of notches, effecting a circumferential distribution of the expansive effort of the roller.

4. An appliance for painting and like operations, as set forth in claim 1, the roller having its extremities reduced in diameter for engagement by said caps, whereby the roller is formed with substantially frusto-conical shoulders adjoining said extremities, each extremity being formed with at least one notch interrupting the adjacent shoulder for diminishing the stiffening,

effect thereof, the exterior diameter of at least one of the caps being predeterminedly less than the diameter imposed by the caps on the unreduced portion of the roller.

5. An appliance for painting and like operations, as set forth in claim 1, said caps having flanges embracing the roller extremities and such flanges having their end portions progressively reduced in diameter to avoid obstructing the work-engaging member, as it is slid on the roller.

8 An appliance for painting and like operations, comprising a hollow roller slotted lengthwise to provide for its contraction and resiliently resisting contraction, a shaft disposed axially oi. said roller, a means for mounting the roller on the shaft and additionally contracting the roller, and a tubular work-engaging member proportioned to fit over and effect a further contraction of the roller.

'7. An appliance as set forth in claim 6, said roller having slots, one extending from each end of the roller for more than one half the roller len th.

8. An appliance for painting and like operations, comprising a hollow roller slotted lengthwise to provide for its contraction and resiliently resisting contraction, its extremities being reduced in diameter and substantially irusto-conlcal shoulders being formed at the Junctures of said reduced extremities with the main body of the roller, a pair of caps fitted over said reduced extremities and effecting a contraction of the roller, the roller having a plurality of apertures interrupting each shoulder for diminishing the stiffening effect thereof, and a tubular workengaging member proportioned to fit over and eflect a further contraction of the roller, and to receive said caps in its end portions, the exteriordiameter of at least one of the caps being predeterminedly less than the diameter imposed by the caps on the unreduced portion of the roller.

9. An appliance for painting and like operations, comprising a hollow roller slotted lengthwise to provide for its contraction, and resiliently resisting such contraction, a shaft disposed substantially axially of said roller, a pair of elements engaged with the roller ends and mounting the roller on the shaft and including provisions for contracting the roller, a tubular workengaging member fitted over and effecting a, further contraction of the roller, and means on the shaft retaining said elements in cooperative relation to the roller.

10. An appliance for painting and like operations as set forth in claim 9, said roller having gradual reductions in diameter in proximity to said paired elements, facilitating an endwise mounting of the work-engaging member on the roller.

11. An appliance for painting and like operations as set forth in claim 9, said roller having gradual reductions in diameter in proximity to said paired elements, facilitating an endwise mounting of the work-engaging member on the roller, and being formed with circumferentially spaced notches extending from its ends into the adjacent reductions, at least partially overcoming the stiffening effect of such reductions.

12. An appliance for painting and like operations as set forth in claim 9, said provisions for contracting the roller including projections on said elements gripping and portions of the roller.

13. An appliance for painting and like operations as set forth in claim 9, said elements substantially closing the roller ends.

14. An appliance for painting and like operations comprising a hollow roller slotted lengthwise to provide for its contraction and resiliently resisting such contraction, a shaft disposed substantially axially of such roller, a pair of elements engaged with the roller ends and mounting the roller rotatively on the shaft, a tubular work-engaging member fitted over and maintainlng a contraction of the roller and held in place by the expansive effort of the roller, the roller having gradual reductions of its diameter in proximity to said paired elements, facilitating an endwise mounting oi. the work-engaging member on the roller, and means on the shaft retaining said elements in cooperative relation to the roller.

15. An appliance for painting and like operations as set forth in claim 14, the roller being formed at each end thereof with a plurality of circumferentially spaced notches extending from such end into the adjoining reduction and serving to at least partially overcome the stiffening effect of such reduction;

EARL E. THOMAS. STANDLY T. COUGHLAN.

REFERENCES CITED The following references are of record in the file of this patent:

Number I Number 8 UNITED STATES PATENTS Name Date Leckie Mar. 2, 1886 Doehrer Sept. 20, 1904 Avram Mar. 1, 1910 Hallam June 25, 1912 Geiger June 23, 1925 Sturgis Mar. 6, 1934 Harpootlian Mar. 11, 1941 Touchett Sept. 16, 1947 Adams Oct. 14, 1947 FOREIGN PATENTS Country Date Great Britain Dec. 24, 1929 Great Britain Jan. '1, 1932 Great Britain Sept. 10, 1934

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