United States Patent Office
The use of automatic apron tapers has become widespread, and well known, particularly in the field of painting and decorating where the aprons are used to protect areas near the painting or similar operation. Many structures have been developed for supporting a roll of paper or other sheet material and a roll of adhesive tape which is applied to an edge of the paper to form the apron. As a rule, some form of cutting edge is provided as part of the machine for separating selected portions of the combined tape and sheet material from the remainder of their rolls. However, existing machines for this purpose have been heavy, cumbersome and, accordingly, difficult to move and to handle.
There are many occasions when the person using this type of equipment should, to save time, move it from one location to another as he applies the aprons. Yet, it is desirable that such machine should be stable and capable of performing all of the functions which are performed by the larger, heavier and more complicated machines.
Accordingly, it has been a primary object of this invention to provide an improved apron taper which is light in weight, rugged in construction and readily capable of movement from one location of use to another without risking disengagement of the rolls of material therefrom or a maladjustment of the operating parts as a result of such movement.
A further object of the invention has been the provision of an apron taper, as aforesaid, which can be quickly and easily loaded, which has a large capacity, which can be easily adjusted for various positions of operation and, therefore, which is capable of use in a variety of positions of operation.
A further object of this invention has been the provision of an apron taper, as aforesaid, having a support structure readily adjustable to a variety of sizes of sheet material and tape locations and which is readily adaptable for manufacture on a variety of sizes without significant changes in design.
A further Object of this invention is the provision of an apron taper, as aforesaid, which can also be used as a dispenser of sheet material from a roll thereof without disturbing the apron taping capability of the device.
Other objects and purposes of the invention will become apparent to persons familiar with this type of equipment upon reading the following specification and examining the accompanying drawings, in which:
FIG. 1 is a broken, top plan view of an apron taper embodying the invention.
FIG. 2 is a sectional view taken along the line II—II in FIG. 1.
FIG. 3 is an enlarged, sectional view taken along the line HI—III in FIG. 1.
FIG. 4 is an enlarged, sectional view taken along the line IV—IV in FIG. 1.
FIG. 5 is an enlarged and broken, sectional view taken along the line V—V in FIG. 2.
FIG. 6 is a sectional view taken along the line VI—VI in FIG. 1.
FIG. 7 is a broken fragment of FIG. 1 illustrating an alternate use of the apron taper.
FIG. 8 is a sectional view taken along the line VIII—VIII in FIG. 7. ig FIG. 9 is a sectional view similar to that appearing in FIG. 6 and illustrating a modified version of the invention.
FIG. 10 is a sectional view taken along the line X—X in FIG. 7.
FIG. 11 is a sectional view taken along the line XI—XI 20 hi FIG. 1.
FIG. 12 is a fragment of FIG. 3 and showing a modified construction.
For convenience in description, the terms "upper," "lower" and words of similar import will have reference
25 to the apron taper as appearing in FIG. 2. The terms "front" and "rear" will have reference to the right and left ends, respectively, of the apron taper as appearing in FIGS. 1 and 2. The terms "inner," "outer" and derivatives thereof will have reference to the geometric center of said
30 apron taper and parts thereof.
The apron taper 10, of which PIG. 1 illustrates a preferred embodiment, is comprised of a U-shaped frame 11,
3g a support roller 12, a first taper holder 13, a second tape holder 14, and a cutter bar assembly 17.
The frame 11, which may be constructed of tubular stock, has a pair of parallel side members 18 and 19 which are integral with an end member 22. The side members 18
40 and 19, which are preferably identical in shape, have horizontal portions 23 and 23A, downwardly extending front legs 24 and 24A, and downwardly extending rear legs 27 and 27A. Relatively soft and flexible caps, such as the cap 25 (FIG. 2), are placed upon the lower ends
45 of the legs 24 and 24A. One or more sleeves 25 (FIG. 8) of relatively soft and flexible material, such as vinyl plastic, are mounted upon the end member 22. The caps 26 and sleeves 25 permit placement of the taper 10 upon the hood of a car, for example, without demaging the finish
The horizontal portions 23 and 23A have slots 33 and 34, respectively, in centrally disposed and laterally opposed portions. Said slots slope downwardly and frontwardly of the frame 11 and they upon on the inward sides
55 of the side members 18 and 19 to receive the ends of the support roller 12, which is rotatably mounted therein.
Said support roller 12 (FIG. 1) is comprised of a hollow body portion 28, which is cylindrical in shape and a pair of end plugs 29 and 29A disposed in the opposite
60 ends of said body portion. The body portion 28 has inwardly extending dimples 30 adjacent the inner edge of the plug 29A for holding same in position at the end of the roller 12. Similar dimples are provided at the other end of the body portion 28 to position the plug 29. Other
g5 means, such as spot welding, may also be used to hold the plugs 29 and 29A in position.
Said end plugs 29 and 29A have integral and coaxial rod portions 32 and 32A which extend into the slots 33 and 34, respectively. Because said slots slant forwardly
70 and downwardly, they prevent accidental disengagement of the roller frame when the rear end is lifted to transport the taper. The body member 28 (FIG. 1) of roller 12 is