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United States Patent 3,847,709
Martin November 12, 1974

FUNCTIONAL STAND FOR ROLL MATERIALS

Abstract

A functional stand for roll materials and the like comprising a bent tube having a U-shaped center section forming a base with one leg of the tube extending upwardly of one side of the U-shaped portion to form an upright whose upper end is bent laterally upwardly at such an angle that gravity will hold a roll slipped thereon against a stop on the lower end of the laterally turned portion. The other end of the tube is inclined upwardly and laterally from the other end of the U-shaped middle section and is fastened to the upright as a brace. An L-shaped bracket is fixed across the upright with its outstanding leg generally parallel to the outstanding leg of the upright to provide a tear edge for the roll material. The other end of the bracket is provided with a rotatable hub for supporting masking tape at a position to overlap the side edge of the roll material.


Inventors: Martin; Marcus (Monroe, MI)
Appl. No.: 05/306,000
Filed: November 13, 1972


Current U.S. Class: 156/510 ; 156/554; 225/34
Current International Class: B65H 16/00 (20060101); B65H 16/02 (20060101); B65H 35/00 (20060101); B32b 031/00 (); B31f 005/06 ()
Field of Search: 225/34,77,6 242/86.5 156/554,544

References Cited

U.S. Patent Documents
2155769 April 1939 Porter
2487061 November 1949 Ptasnils
3630421 December 1971 Waltz
Primary Examiner: Rusar; Francis
Assistant Examiner: Gilden; Leon
Attorney, Agent or Firm: Hickey; William P.

Claims



I claim:

1. A portable stand for roll materials comprising: a stand formed of a tube having an upper end which extends upwardly and outwardly at an incline free and clear of surrounding structure to receive a roll of paper slid over the end of the tube, a stop plate surrounding said upwardly and outwardly inclined portion of the tube and spaced from its end by a distance to receive the roll of paper, said upwardly and outwardly inclined free end being at such an angle that gravity holds a roll of paper when telescoped over said end against said stop plate, an L-shaped bracket having an upstanding leg generally parallel to said upper end of said tube and positioned to one side of said tube and its other leg extending transversely across said tube, and a spindle on said bracket on the opposite side of said tube from said upstanding leg of said bracket, said spindle being positioned to support a roll of masking tape generally centered with respect to the lower edge of a roll of paper in abutment with said stop plate, and whereby masking tape from the roll of masking tape can be stuck generally centered on the bottom edge of the roll of paper placed on said end of said tube and will be automatically applied in a position projecting from the edge of the paper as the paper is pulled from the roll.

2. A masking paper dispenser comprising: a stand having a handle on the upper end thereof which handle extends upwardly therefrom at an angle above the horizontal for receiving a roll of paper slipped endwise thereon; an abutment on said handle against which the lower end of the roll is adapted to bear; a rotatable support hub for rolled adhesive coated tape positioned to one side of said handle to support tape generally centered with respect to said abutment; and a tear bar positioned on the opposite side of said handle from said hub; whereby rolls of paper are installed in the machine by simply slipping the roll over said handle, and thereafter the roll is automatically held in accurate alignment with the tape on said hub by gravity.

3. The dispenser of claim 1 including a hold-down member biased against a roll supported on said handle to simultaneously press the tape more firmly on the paper and prevent uncoiling of the roll.

4. The dispenser of claim 3 wherein said hold-down member is a roller.

5. The dispenser of claim 3 wherein said abutment, hub, tear bar and hold-down means are supported by a single assembly that in turn is fixed to said handle.

6. The dispenser of claim 5 wherein said assembly is a casting having a hole therein for receiving said handle, and means for clamping said assembly to said handle.
Description



BACKGROUND OF THE INVENTION

In the refinishing of painted objects, as for example, airplanes and automotive vehicles, it is necessary to cover portions that are not to be painted with paper held in place by masking tape which is generally centered on one side edge of the paper. The paper that is usually used comes in rolls of a number of different widths.

The art, as it has developed and with which I am familiar, has applied masking tape to the side edge of the paper, either by hand or by sticking the tape onto one side edge of the paper as it is withdrawn from the roll. The roll of paper and roll of tape have been supported in heavy box like structures that must be supported on a bench usually at some distance from the work. The roll of paper is supported on a rod, the opposite ends of which slip down grooves in the top side edges of the box and a tear off strip for the paper is supported on the front upper edge of the box. A roll of the masking tape which is to be applied to one of the side edges of the paper is mounted in the box rearwardly of the roll of paper and the masking tape is fed forwardly and is stuck onto one side edge of the paper as it is uncoiled from the roll. A problem exists in holding the paper roll in a fixed position laterally of its support, and this in some instances is accomplished by means of a flange which is slipped along the bar and clamped in position against the side edge of the roll by means of a set screw. Considerable difficulty occurs in changing rolls of the paper used, and in holding the paper in desired alignment with the roll of masking tape. In addition, the whole structure is heavy and awkward, and must be supported on a rugged bench, which in most instances must be remotely located from the work.

An object of the present invention is the provision of a new and improved support for rolls of sheet material which will accommodate rolls of different widths without complicated structure for holding the rolls in accurate alignment with rolls of other materials as for example masking tape.

Another object of the present invention is the provision of a new and improved structure of the above described type which reduces the time spent in obtaining and applying paper having masking tape on one side edge to the work to be masked.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front elevational view of a stand supporting masking paper and masking tape, and which applies the tape generally centered over one side edge of the paper;

FIG. 2 is a plan view of the apparatus shown in FIG. 1;

FIG. 3 is a fragmentary sectional view taken approximately on the line 3--3 of FIG. 1; and

FIG. 4 is a fragmentary sectional view of another embodiment, which view is taken on approximately the same sectional line as FIG. 3.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The device shown in the drawing for applying masking tape to one side edge of paper as it is uncoiled from a roll comprises a stand 10 that is made from a single length of tubing. The center section of the tube is bent into a U-shaped base 12, and one end of the tube extends upwardly therefrom to form an upright 14 having a laterally turned end portion 16 which extends obliquely outwardly and upwardly over the base 12. The other end of the tube 18 is bent upwardly and diagonally and is welded to the upright 14 to brace the two ends of the tube together. A circular plate 20 is tack welded around the laterally turned end portion 16, and a tubular sleeve 22 is slipped over the laterally turned end portion 16 to provide a spacer between the circular plate 20 and a roll of masking paper P. The laterally turned end portion 16 is inclined at such an angle that gravity pulls the roll of paper P against the sleeve 22 and the sleeve 22 against the plate 20. The stand 10 also includes an L-shaped tubular bracket 24, the major leg of which is welded to the upright 14 just below the laterally turned end portion 16. The bracket 24 also has a laterally extending leg 26 which is parallel to the laterally turned end portion 16 of the upright 14. A tear bar 28 is fixed to the lateral leg 26 with its sharp edge projecting downwardly so that paper uncoiled from the roll P can be neatly torn by pulling the paper upwardly against the bottom edge of the tear bar 28. The end of the L-shaped bracket 24 opposite the lateral leg 26 is flattened and drilled to carry the shaft 32 of a spindle 34 for rotatably supporting a roll of masking tape T.

The spindle 34 includes a cast hub 36 having axially extending ribs 38 thereon, which engage the inside of the roll of tape T. The hub also has a flange 40 which positions and aligns the roll of tape relative to the roll of paper P. One end of a U-shaped rod 42 is positioned in the open end of the lateral leg 26 of the bracket 24 and the other leg of the U-shaped rod bears against the roll of paper and acts as a brake to prevent continued rotation of the paper roll when pulling action on the paper ceases. Pulling action on the paper lifts the leg 44 of the U-shaped rod upwardly to release the braking action. When the leg is lifted so that the paper passes the leg 44 with very little change in direction at the leg 44, only sliding friction resists the pulling action on the paper. When the pulling action on the paper ceases, however, the leg 44 drops downwardly against the surface of the roll P and friction of the roll forces the leg 44 against the roll with increased force to brake further rotation of the roll. A type of binding action, therefore, stops the rolling of the paper P after pulling on its free end stops.

It will be seen that gravity, not only holds the roll of paper P positioned against its sleeve 22, but holds the U-shaped rod 42 in place. It will further be seen that different widths of masking tape T can be installed upon the hub 36 and that rolls of different widths of masking paper P can be slipped into position on the laterally turned end 16 of the tubular upright 14. In addition, the end of the laterally turned tube 16 acts as a handle for sliding the base 12 around the floor to locate the stand adjacent the work to be masked.

In some instances it will be desirable to provide a pair of wheels W on the stand 10, and this can be conveniently accomplished by tack welding an axle 46 to the ends 14 and 18 respectively just upwardly of the U-shaped base 12. Preferably the wheels will be positioned just out of engagement with the floor when the U-shaped base 12 is standing on the floor, but will engage the floor when the stand is tipped forwardly as can be seen from FIG. 2. The wheels can be slid onto the projecting ends of the axle 46, and press nuts 48 can be pressed onto the ends of the axle 46 to hold the wheels in position between the nuts and the upwardly extending portions of the tube ends 14 and 18. Also in some instances it may be desired to fasten a wire basket B to the upwardly extending portions of the tube ends 14 and 18, so that rolls of masking tape T etc. can be carried with the stand 10 at all times.

It will now be seen that the pulling action of the paper is crosswise to the axis of rotation of the wheels, so that the pulling action does not move the stand 10 over the floor. It will also be seen that the paper roll P is closer to the upright 14 than it is to the side of the stand toward which the paper is drawn, so that pulling on the paper does not tip the stand over. It will further be seen that the center of gravity of the paper roll P is at all times located between the wheels W of the U-shaped base 12 so that the stand will not tip over.

FIG. 4 is a fragmentary view similar to FIG. 3 but showing another preferred embodiment of the invention. Those portions of FIG. 4 which are similar to the embodiment shown in FIGS. 1 through 3 are designated by a like reference numeral characterized further in that a suffix "a" is affixed thereto. The embodiment of FIG. 4 generally comprises a stand 10a having a casting 50 to support the tear bar 28a and the spindle 34a instead of the L-shaped pipe bracket 24.

The casting 50 is oblong and has tappered ends and a generally centrally located boss 52 with a hole 54 therein for receiving the laterally turned pipe handle 16a of the stand 10a. A set screw 56 is provided in the boss for clamping the casting upon the handle 16a. A roll of paper Pa is slipped over the handle 16a, as in the previous embodiment. The roll Pa bears against the boss 52 and is uncoiled when the paper is pulled towards the center of the stand 10a. The end of the casting 50 adjacent the center of the stand (right hand end as seen in FIG. 4) is provided with a boss 58 having an opening 60 therein. The end of a pipe 62 having a hacksaw blade 28a rivoted thereto is positioned in the opening 60 for providing a tear edge for the paper when uncoiled from the roll. A set screw, not shown, holds the pipe 62 in the boss 58. Another boss, not shown, is positioned on the left hand side of the casting 50, and it also has an opening, not shown, therein for receiving a shaft 32a of a spindle 34a for holding a roll of masking tape Ta. The spindle 34a is a casting having an annular rim 64 having ribs or projections 38a on its outer surface for frictionally engaging the inner annular surface of the roll of masking tape Ta. Spindle 34a also has cast spokes 66 for supporting the rim 64 from the center annular portion which receives the shaft 32a. The roll of masking tape Ta is so positioned relative to the roll of paper Pa that half of its width becomes stuck on the paper, and the other half projects outwardly therefrom.

The embodiment shown in FIG. 4 is also provided with a spring biased roller 68 that is carried on an arm 70. The arm 70 is pivotally supported on a raised pad 72 adjacent the boss 58 by a bolt 74. One end of a coil spring 76 is fastened to the bottom of the casting 50 and the other end is fastened to the arm 70 to bias the roller 68 against the tape while it is overlying the roll of paper Pa. This causes the tape to firmly adhere to the side edge of the paper that is uncoiled from the roll Pa. Aside from the improved rolling action of the tape against the side edge of the paper as it is uncoiled from the roll, the embodiment shown in FIG. 4 operates generally in the same manner as the embodiment previously described.

While the invention has been described in considerable detail, I do not wish to be limited to the particular embodiments shown and described, and it is my intention to cover hereby all novel adaptations, modifications, and arrangements thereof which come within the practice of those skilled in the art to which the invention relates, and which fall within the perview of the following claims.

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