US3275490A - Method of making a paint roller cover - Google Patents
Method of making a paint roller cover Download PDFInfo
- Publication number
- US3275490A US3275490A US262896A US26289663A US3275490A US 3275490 A US3275490 A US 3275490A US 262896 A US262896 A US 262896A US 26289663 A US26289663 A US 26289663A US 3275490 A US3275490 A US 3275490A
- Authority
- US
- United States
- Prior art keywords
- core
- pad
- adhesive
- rods
- paint roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
- B05C17/0207—Rollers ; Hand tools comprising coating rollers or coating endless belts characterised by the cover, e.g. cover material or structure, special surface for producing patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
- B29L2031/328—Paint rollers
Definitions
- the paint roller cover hereafter referred to as the cover, is comprised of a cylindrical hollow core which has a lambskin or fabric pad bonded to its outside surface.
- the cover is adapted to be secured to a paint roller in the well known manner.
- the known methods used in the manufacture of the covers is to helically wind a strip. of fabric onto the core which hassbeen previously coated with adhesive, or to slide a tubular sleeve onto the coated core.
- both methods it has been very difiioult to maintain uniformly a good bond between the cover and the sleeve, because in the application of the sleeve to the adhesive covered core, the motion of the sleeve material has tended to wipe olf the adhesive coating in some areas and cause the accumulation of excessive adhesive in others.
- the nonunifonnity of bonding is more prevalent when the tubular sleeve is slid over the cover; however, the helical winding method also causes a sufiicient number of defectively bonded rollers to present a serious problem.
- the principal object of this invention is to provide a method of manufacturing paint roller covers which will provide a consistently uniform and proper amount of adhesive between the core and the sleeve and thus will cause a better bond between the two parts.
- This object is attained by a method of applying the pad to the adhesive covered core in which the sliding motion of the pad during such application will not tend to wipe 013? or otherwise disturb the adhesive.
- This is attained by corrugating the outside surface of the core to provide a plurality of adhesive reservoirs.
- the pad When the pad is applied to the core, it only engages the ridges of the surface leaving the adhesive in the grooves undisturbed.
- the pad shrinks in diameter and substantially fills in the areas between the ridges. Due to this shrinkage, the bonded surface area is substantially increased over comparable diameter cores used heretofore.
- Another object of this invention is to increase the surface area of bond between the core and the pad.
- FIG. 1 represents a cross sectional view of the core and pad prior to their assembly and of the apparatus used in their assembly;
- FIG. 2 represents an end view thereof from the left in FIG. 1;
- FIG. 3 represents a view taken on line 33 of FIG. 1.
- FIG. 4 represents a crosssectional view of the core and pad after the pad has been applied to the core and a fragmentary view of the apparatus used in their assembly;
- FIG. 5 represents an enlarged fragmentary cross sectional view of the cover.
- FIGS. 1-4 illustrate the apparatus employed in the method for assembly and bonding of tubular lambskin or fabric pad onto a corrugated core 12 pursuant to my invention.
- the outside surface of the core is provided with a plurality of longitudinally extending ridges 14 defining 3,275,490 Patented Sept. 27, 1966 grooves 16 therebetween.
- the core has to be of a material sufficiently strong to retain its shape during painting as well as to withstand the frequent application to and removal from the paint roller and the cleaning connected therewith.
- Fibre board and extruded plastic have been generally used as core material. The latter material is particularly adaptable for use with this invention, since the longitudinally corrugated core can be easily extruded in the well known manner.
- the novel method in essence consists of applying adhesive to the corrugated outside surface of the core and then advancing the core through a cylinder 18 which engages the ridges 14 to provide a slidable fit between the adhesive coated core and the inside surface of the cylinder. As the core is advanced through the cylinder the excess adhesive is wiped off leaving the grooves 16 filled. The excess adhesive may be collected and reused.
- the previously prepared tubular lambskin or fabric pad 10 is pulled over resilient rods 20, which are arranged to form a generally cone shaped open form which has approximately the same diameter at its base as the core. As the coated and wiped core emerges from the cylinder 18, it springs the resilient rods 20 apart thereby facilitating entry of the core into the pad with a minimum amount of stretching.
- the rods are of a width greater than the width of the grooves 16 so that during the advancement of the core into the cone and during the stripping, the rods only engage the ridges 14 and do not disturb or wipe off the adhesive contained in the grooves 16.
- the adhesive may be applied to the outside of the core prior to its travel through the cylinder 18 either by a roll coater, by spraying, by external immersion, or, as preferred in the illustrated embodiment, by passing the core through a coating ring 22 located at the entrance into the cylinder 18.
- the pad shrinks in diameter causing its inside surface to deform partly filling the grooves and increasing the total contact area between the core and pad by virtue of contacting a portion of the sides of the ridges 14. This shrinkage also helps to squeeze a portion of the adhesive contained in the grooves between the tops of ridges 14 and the pad thereby providing a satisfactory and uniform bond between the core and pad.
- the above described method not only provides an easy and inexpensive method of attaining consistently uniform adhesive coverage and bond between the core and pad, but also increases the total contact area between the core and the pad and thereby greatly increases the strength of the bond therebetween.
- deforma- .tion of the inside surface of the pad might deform the pad sufliciently to result in non-uniform application of paint or to otherwise hamper its application; however, it has been found that the outside surface does not deform materially, if at all, and that the cushioning provided by the nap 24 of the pad completely eliminates any effect of the grooves and ridges upon the paint application.
- paint roller is intended to include similar devices which employ a rigid core and a soft absorbent pad bonded thereto intended for application of a liquid substance onto a surface.
- said grooved outside surface comprises a plurality of longitudinally stripped oif said rods, thereby leaving the adhesive in said V grooves substantially undisturbed during said two steps said pad on said rods, said core engaging said rods as it leaves said cylinder and, is advanced into said pad and spreading said converging rods apart.
Description
Sept. 27, 1966 K. R. STODDART METHOD OF MAKING A PAINT ROLLER COVER Filed March 5, 1963 T. R M mm W o A T E V Won H T a N N E K ATTORNEY United States Patent C) 3,275,490 METHOD OF MAKING A PAINT ROLLER COVER Kenneth R. Stoddart, Fond du Lac, Wis., assignor to Bestt Rollr Inc., Fond du Lac, Wis., a corporation of Wisconsin Filed Mar. 5, 1963, Ser. No. 262,896 3 Claims. (Cl. 156-294) This invention pertains to improved paint roller covers and to the method of their manufacture.
The paint roller cover, hereafter referred to as the cover, is comprised of a cylindrical hollow core which has a lambskin or fabric pad bonded to its outside surface. The cover is adapted to be secured to a paint roller in the well known manner.
The known methods used in the manufacture of the covers is to helically wind a strip. of fabric onto the core which hassbeen previously coated with adhesive, or to slide a tubular sleeve onto the coated core. In both methods it has been very difiioult to maintain uniformly a good bond between the cover and the sleeve, because in the application of the sleeve to the adhesive covered core, the motion of the sleeve material has tended to wipe olf the adhesive coating in some areas and cause the accumulation of excessive adhesive in others. The nonunifonnity of bonding is more prevalent when the tubular sleeve is slid over the cover; however, the helical winding method also causes a sufiicient number of defectively bonded rollers to present a serious problem.
The principal object of this invention is to provide a method of manufacturing paint roller covers which will provide a consistently uniform and proper amount of adhesive between the core and the sleeve and thus will cause a better bond between the two parts.
This object is attained by a method of applying the pad to the adhesive covered core in which the sliding motion of the pad during such application will not tend to wipe 013? or otherwise disturb the adhesive. This is attained by corrugating the outside surface of the core to provide a plurality of adhesive reservoirs. When the pad is applied to the core, it only engages the ridges of the surface leaving the adhesive in the grooves undisturbed. Within a short time after the assembly, the pad shrinks in diameter and substantially fills in the areas between the ridges. Due to this shrinkage, the bonded surface area is substantially increased over comparable diameter cores used heretofore.
Thus, another object of this invention is to increase the surface area of bond between the core and the pad.
Other objects and advantages of this invention will be pointed out in or be apparent from the specification and claim as will obvious modifications of the single embodiment shown in the drawings, in which:
FIG. 1 represents a cross sectional view of the core and pad prior to their assembly and of the apparatus used in their assembly;
FIG. 2 represents an end view thereof from the left in FIG. 1;
FIG. 3 represents a view taken on line 33 of FIG. 1.
FIG. 4 represents a crosssectional view of the core and pad after the pad has been applied to the core and a fragmentary view of the apparatus used in their assembly; and
FIG. 5 represents an enlarged fragmentary cross sectional view of the cover.
Referring to the drawings in detail, FIGS. 1-4 illustrate the apparatus employed in the method for assembly and bonding of tubular lambskin or fabric pad onto a corrugated core 12 pursuant to my invention.
The outside surface of the core is provided with a plurality of longitudinally extending ridges 14 defining 3,275,490 Patented Sept. 27, 1966 grooves 16 therebetween. The core has to be of a material sufficiently strong to retain its shape during painting as well as to withstand the frequent application to and removal from the paint roller and the cleaning connected therewith. Fibre board and extruded plastic have been generally used as core material. The latter material is particularly adaptable for use with this invention, since the longitudinally corrugated core can be easily extruded in the well known manner.
The novel method in essence consists of applying adhesive to the corrugated outside surface of the core and then advancing the core through a cylinder 18 which engages the ridges 14 to provide a slidable fit between the adhesive coated core and the inside surface of the cylinder. As the core is advanced through the cylinder the excess adhesive is wiped off leaving the grooves 16 filled. The excess adhesive may be collected and reused.
The previously prepared tubular lambskin or fabric pad 10 is pulled over resilient rods 20, which are arranged to form a generally cone shaped open form which has approximately the same diameter at its base as the core. As the coated and wiped core emerges from the cylinder 18, it springs the resilient rods 20 apart thereby facilitating entry of the core into the pad with a minimum amount of stretching.
After the entire length of the core has been covered by the pad, as shown in FIG. 4, both are stripped off the rods 20 by moving them simultaneously in the direction as indicated by the arrow. The rods are of a width greater than the width of the grooves 16 so that during the advancement of the core into the cone and during the stripping, the rods only engage the ridges 14 and do not disturb or wipe off the adhesive contained in the grooves 16.
The adhesive may be applied to the outside of the core prior to its travel through the cylinder 18 either by a roll coater, by spraying, by external immersion, or, as preferred in the illustrated embodiment, by passing the core through a coating ring 22 located at the entrance into the cylinder 18.
Within a short period of time after the core and pad are stripped off the rods 20, the pad shrinks in diameter causing its inside surface to deform partly filling the grooves and increasing the total contact area between the core and pad by virtue of contacting a portion of the sides of the ridges 14. This shrinkage also helps to squeeze a portion of the adhesive contained in the grooves between the tops of ridges 14 and the pad thereby providing a satisfactory and uniform bond between the core and pad.
It is of note that the above described method not only provides an easy and inexpensive method of attaining consistently uniform adhesive coverage and bond between the core and pad, but also increases the total contact area between the core and the pad and thereby greatly increases the strength of the bond therebetween.
It might appear that the heretofore mentioned deforma- .tion of the inside surface of the pad might deform the pad sufliciently to result in non-uniform application of paint or to otherwise hamper its application; however, it has been found that the outside surface does not deform materially, if at all, and that the cushioning provided by the nap 24 of the pad completely eliminates any effect of the grooves and ridges upon the paint application.
Although this invention has been described and illustrated in reference to a paint roller and the method of making the same, it should be understood that the term paint roller is intended to include similar devices which employ a rigid core and a soft absorbent pad bonded thereto intended for application of a liquid substance onto a surface.
Although but one embodiment of the present invention has been illustrated and described, it will be apparent to, those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.
I claim:
1.; A method of making a paint roller cover-comprising the steps of; coating the grooved outside surface of a core with adhesive, passing the core through a cylinder which engages the core and removes excess adhesive while leaving the adhesive in the grooved portions substantially undisturbed, engaging the inside surface of a tubular pad by a plurality of rods which extend longitudinally in respect to said tubular pad and are arranged at one end of said pad in substantially circular relationhsip, advancing said core after it has passed through said cylinder into said one end thereby positioning said rods between said core and pad, simultaneously stripping said core and pad ofi said rods after said core has been fully inserted in,
said pad, and permitting the adhesive to dry thereby bonding said pad to said grooved outside surface.
2. A method according to claim 1 wherein said grooved outside surface comprises a plurality of longitudinally stripped oif said rods, thereby leaving the adhesive in said V grooves substantially undisturbed during said two steps said pad on said rods, said core engaging said rods as it leaves said cylinder and, is advanced into said pad and spreading said converging rods apart.
' References Cited by the Examiner UNITED STATES PATENTS 1 189,610 4/1877 Cowen 156294 1,537,439 5/1925 Griffith 29-120 1,559,785 11/1925 Russell 29-120 2,022,258 11/ 1935 Shute. 32,621,507 12/ 1952 Pharris et a1. 2,647,300 8/1953 Thomas 29-120 2,866,995 1/1959 Evensen 29120 X 2,944,588 I 7/1960 Sanm'poli 156--29,4 3,181,233 5/1965 Sannipoli et al. 156 294 X 3 ,184,362 5/1965 Litskyet a1. 156-423 3 r FOREIGN PATENTS 281,516 1/ 1915 Germany.-
1859 GreatBritaim EARL M. BERGERT, Primary Examiner. HAROLD ANSHER, JOSEPH D. BEIN, Examiners.
Claims (1)
1. A METHOD OF MAKING A PAINT ROLLER COVER COMPRISING THE STEPS OF; COATING THE GROOVED OUTSIDE SURFACE OF A CORE WITH ADHESIVE, PASSING THE CORE THROUGH A CYLINDER WHICH ENGAGES THE CORE AND REMOVES EXCESS ADHESIVE WHILE LEAVING THE ADHESIVE IN THE GROOVED PORTIONS SUBSTANTIALLY UNDISTURBED, ENGAGING THE INSIDE SURFACE OF A TUBULAR PAD BY A PLURALITY OF RODS WHICH EXTEND LONGITUDINALLY IN RESPECT TO SAID TUBULAR PAD AND ARE ARRANGED AT ONE END OF SAID PAD IN SUBSTANTIALLY CIRCULAR RELATIONSHIP, ADVANCING SAID CORE AFTER IT HAS PASSED THROUGH SAID CYLINDER INTO SAID ONE END THEREBY POSITIONING SAID RODS BETWEEN SAID CORE AND PAD, SIMULTANEOUSLY STRIPPING SAID CORE AND PAD OFF SAID RODS AFTER SAID CORE HAS BEEN FULLY INSERTED IN SAID PAD, AND PERMITTING THE ADHESIVE TO DRY THEREBY BONDING SAID PAD TO SAID GROOVED OUTSIDE SURFACE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US262896A US3275490A (en) | 1963-03-05 | 1963-03-05 | Method of making a paint roller cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US262896A US3275490A (en) | 1963-03-05 | 1963-03-05 | Method of making a paint roller cover |
Publications (1)
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US3275490A true US3275490A (en) | 1966-09-27 |
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US262896A Expired - Lifetime US3275490A (en) | 1963-03-05 | 1963-03-05 | Method of making a paint roller cover |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100007A (en) * | 1976-10-15 | 1978-07-11 | E Z Paintr | Method of making paint roller cover |
US4144813A (en) * | 1976-01-08 | 1979-03-20 | Strachan & Henshaw Limited | Printing sleeves |
WO1996029767A1 (en) * | 1995-03-23 | 1996-09-26 | Zittauer Kunststoff Gmbh | Method and device for sliding and positioning sleeve-shaped resilient components on cylindrical or conical basic bodies |
US20090313802A1 (en) * | 2005-06-10 | 2009-12-24 | Mark Schell | Method and apparatus for fitting grips |
US20100147906A1 (en) * | 2008-12-16 | 2010-06-17 | Emerick Christina M | Handbag Support Article |
CN103817700A (en) * | 2014-03-07 | 2014-05-28 | 苏州工业园区职业技术学院 | Rubber stretching claw and processing technology thereof, and rubber stretching device |
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US189610A (en) * | 1877-04-17 | Improvement in machinery for manufacturing water-tight hose | ||
US1537439A (en) * | 1922-04-13 | 1925-05-12 | Charles R Griffith | Press roll for paper machines |
US1559785A (en) * | 1925-11-03 | russell | ||
US2022258A (en) * | 1934-10-16 | 1935-11-26 | Frederick T Walsh | Cloth spreader or expander |
US2621507A (en) * | 1949-12-19 | 1952-12-16 | Painter Corp E Z | Method of making a cylindrical liquid applicator |
US2647300A (en) * | 1949-03-10 | 1953-08-04 | Thomas Roller Painting Equipme | Detachable tubular cover for painting rollers |
US2866995A (en) * | 1952-11-13 | 1959-01-06 | Ingwald M Evensen | Paint roller for woven wire fences |
US2944588A (en) * | 1955-10-20 | 1960-07-12 | Seamless Covers Inc | Method of mounting fabric sleeves on hollow cores to form paint rollers |
US3181233A (en) * | 1961-06-06 | 1965-05-04 | Seamless Covers Inc | Manufacture of paint rollers |
US3184362A (en) * | 1961-03-20 | 1965-05-18 | Fafnir Bearing Co | Apparatus for bonding an annular liner to a bearing ring |
-
1963
- 1963-03-05 US US262896A patent/US3275490A/en not_active Expired - Lifetime
Patent Citations (11)
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DE281516C (en) * | ||||
US189610A (en) * | 1877-04-17 | Improvement in machinery for manufacturing water-tight hose | ||
US1559785A (en) * | 1925-11-03 | russell | ||
US1537439A (en) * | 1922-04-13 | 1925-05-12 | Charles R Griffith | Press roll for paper machines |
US2022258A (en) * | 1934-10-16 | 1935-11-26 | Frederick T Walsh | Cloth spreader or expander |
US2647300A (en) * | 1949-03-10 | 1953-08-04 | Thomas Roller Painting Equipme | Detachable tubular cover for painting rollers |
US2621507A (en) * | 1949-12-19 | 1952-12-16 | Painter Corp E Z | Method of making a cylindrical liquid applicator |
US2866995A (en) * | 1952-11-13 | 1959-01-06 | Ingwald M Evensen | Paint roller for woven wire fences |
US2944588A (en) * | 1955-10-20 | 1960-07-12 | Seamless Covers Inc | Method of mounting fabric sleeves on hollow cores to form paint rollers |
US3184362A (en) * | 1961-03-20 | 1965-05-18 | Fafnir Bearing Co | Apparatus for bonding an annular liner to a bearing ring |
US3181233A (en) * | 1961-06-06 | 1965-05-04 | Seamless Covers Inc | Manufacture of paint rollers |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4144813A (en) * | 1976-01-08 | 1979-03-20 | Strachan & Henshaw Limited | Printing sleeves |
US4100007A (en) * | 1976-10-15 | 1978-07-11 | E Z Paintr | Method of making paint roller cover |
WO1996029767A1 (en) * | 1995-03-23 | 1996-09-26 | Zittauer Kunststoff Gmbh | Method and device for sliding and positioning sleeve-shaped resilient components on cylindrical or conical basic bodies |
US6049960A (en) * | 1995-03-23 | 2000-04-18 | Zittauer Kunststoff Gmbh | Method and device for sliding and positioning sleeve-shaped elastic components on cylindrical or conical base bodies |
CZ297798B6 (en) * | 1995-03-23 | 2007-04-04 | Cellpack Gmbh | Method for sliding and positioning sleeve-shaped cable joint and device for making the same |
US20090313802A1 (en) * | 2005-06-10 | 2009-12-24 | Mark Schell | Method and apparatus for fitting grips |
US20100147906A1 (en) * | 2008-12-16 | 2010-06-17 | Emerick Christina M | Handbag Support Article |
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CN103817700A (en) * | 2014-03-07 | 2014-05-28 | 苏州工业园区职业技术学院 | Rubber stretching claw and processing technology thereof, and rubber stretching device |
CN103817700B (en) * | 2014-03-07 | 2016-11-09 | 苏州工业园区职业技术学院 | A kind of rubber struts pawl and processing technology, rubber device for spreading |
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