US 3007645 A
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Description (OCR text may contain errors)
E. M. LITTLE 3,007,645
PAINT STRIPING APPARATUS Nov. 7, 1961 Filed Dec. 21, 1959 2 Sheets-Sheet 1 Irl/G. 2322 75 fraz/Veys Nov, 7, 1961 E. M. LITTLE: 3,007,645
PAINT STRIPING APPARATUS Filed Deo. 2l, 1959 2 Sheets-Sheet 2 INV ENTOR EMM/f M Hna F/G] BY WM ATTORNEYS United States Patent O F 3,007,645 PAINT STRIPING APPARATUS Elijah M. Little, 774 Grove St., Abilene, Tex. Filed Dec. 21, 1959, Ser. No. 860,808 1 Claim. (Cl. Z39- 150) This invention relates to a paint striping apparatus, and has` as its primary object the provision of a paint striping device mounted on a portable wheeled frame, particularly adapted for the painting of stripes on roadways, parking lots, streets, or the like.
An additional important object of the invention is the provision of a device of this character including'a spray nozzle rreleasably attached to the frame, which, when not in use for striping purposes, may be removed from the frame for use as a general paint spray. Still another object of the invention is the provision of such a device whichmay be used for any general spraying purposes, such as fruit trees, shrubbery, gardens, or the like.
An additional object of the invention is the provision of a devicey of this character which is substantially selfcontained, and which may be moved from place to place with a minimum of elort and diiiculty.
Still another object of the invention is the provision of a device of this character which is sturdy and durable in construction, reliable and ecient in operation, and relatively simple and inexpensive to manufacture, assemble and utilize.
Other objects will in part be obvious, and in part be pointed out as the description of the invention proceeds, and shown in the accompanying drawings wherein:
FIGURE l is a side elevation View of one form of strip` ing device embodying features of the instant inventive concept, certain concealed parts thereof being indicated in dotted lines;
FIGURE 2 is a top plan view of the construction of FIGURE 1;
FIGURE 3 is an enlarged fragmentary side elevational view of a lconstructional detail4 showing the mounting of a nozzle assembly;
' FIGURE 4 is a sectional view taken substantially along the line 4-'4 of FIGURE 3,as viewed in the direction indicated by the arrows; Y Y
' FIGURE 5is.a. fragmentary side elevational view of a modified form of supporting base for the apparatus, parts thereof being broken away;
FIGURE 6 is a fragmentary plan view of the modified form of carriage or frame shown in FIGURE 5, parts thereof being broken away, and parts being omitted; and
FIGURE 7 is a sectional view taken substantially along the line 7 7 of FIGURE 6, as viewed in the direction indicated by the arrows.
Similar reference characters refer to similar parts throughout the several views of the drawings.
Having reference now to the drawings in detail, the device of the instant invention, generally indicated at 10, includes a generally rectangular base plate 1v1, which is provided with a pair of depending lugs 1'2. on opposite sides thereof, which support an axle 13, upon which are mounted oppositely disposed rubber tired wheels 14. The forward end of plate 11 carries a pair of spaced parallel forwardly inclined angle irons 15, which carry an axle 16 upon which is rotatably mounted a front wheel 17,
which is also rubber tired.
Secured to the end of the plate I1 opposite front Wheel 17 are a pairV of spaced lugs 18, to each of which is secured, as by means Yof a bolt I9, a handle member 20. The handle members 20 converge, as best shown in FIG- URE 2, and are provided at their upper extremities with arcuate outwardly extending portions 2'1, terminating in transverse handle gripping members provided with hand 3,(lll7,645 Patented Nov. 7, 1961 grips 22. The members 20 are connected at their point of closest convergence as by means of a reinforcing bolt Z3. Obviously, the angular inclination of the handle may be Varied by loosening the bolts 19 if desired, in order to accommodate the device to the relative height of various users. l
Mounted on the plate 11 is a motor 2S, of any desired conventional type, although a 21/2 horsepower gasoline motor has been found desirable. Motor 25 has mounted thereon the usual gas tank 26, and is provided with the usual iiltered intake 27. A drive shaft 28 driven by motor 25, in turn, drives a pulley 29, from which a belt 3d extends to a second pulley 31, carried by a shaft 32, which is adapted to drive a conventional air compressor 33, also mounted on base plate 11.
A brace 34 is secured to compressor 33, and extends to a cross member 35 which extends between handle members Ztl. A second parallel reinforcing brace 36 is also provided to impart rigidity to the handle structure,
Air compressor 33 is provided with an inlet 37, and a iitting 33 which is connected to an air hose 39, which leads to a second fitting 40 at the top of a compressed air storage tank 41, the latter also being mounted on base plate 11.
Tank 41 is provided with an outlet fitting 42 which includes a pressure gauge 43, and a compressed air hose 44 extends from fitting 42 to one inlet 45 of a spray nozzle assembly, generally indicated at 46.
The nozzle assembly 46 includes a second tting 47 to which is secured a paint line 43 which extends to an y outlet 49 at the top of a paint reservoir 50. The latter is adapted to be seated in a bucket or receptacle 5l which is mounted on base plate Il, and includes the conventional agitating handle 52.
The nozzle assembly 46 includes a conventional outlet 53 for the mixed paint and air, the outlet being surrounded by a tubular shield 54, which extends below .the mouth of the outlet, to provide directional guidance for the paint, which is of particular utility when painting a stripe, for example, on a roadway or the like.
The nozzle assembly 46 is adapted to be releasably carried by a support mounted .on the side of a frame or base plate 1li exteriorly of and spaced from the adjacent one of said wheels 14, the support comprising a generally U-shaped, horizontally disposed member 57, the legs 58 of which are secured to the frame adjacent its ends. A depending lug 59 secured to the frame carries a bolt 60, which engages in a vertical slot 61 in a vertical bracket member 62 which extends upwardly beyond the frame Il and includes a downwardly reverted portion 63. Transversely extendingbolts 64 extending between the reverted portion 63 and the bracket 612 form a space within which a projecting handle portion 65 of the nozzle assembly 46 is adapted to seat for retaining the assembly in position on the side of the frame. An operating handle 66 is pivotally mounted on the nozzle assembly 46 for actuating the same, and has secured thereto one end of a cord 67. The cord 67 extends over a pulley 68, which is carried by an arm 69 pivotally mounted as on a bolt 70 secured to the top of bracket 62. The other end of the cord 67 is secured, as at 71, to one arm of an L-shaped lever 72, the opposite end of which is pivotally secured as lat 73 to a lug 74 which projects from one of the arcuate arms 21 of handle 20, the arrangement being such that movement of the lever 72, which may be conveniently effected by the hand grasping the adiacent handle grip 22, moves lever 66 to actuate the paint spray.
FIGURES 5 and 6 disclose a slightly modified form of frame wherein the base plate 11 is provided with a pair of oppositely disposed depending brackets 75, between which extends an axle 76 which carries at its ends wheels 77, thus providing two wheel support for the front end of the device, rather than the single wheel of the previous modication.
In this modification `a guide pointer 7S is also provided, which includes a forwardly and downwardly extending elongated rod 79 having a downturned end 80 which extends to a point closely adjacent the road surface. The other end of member 79 is provided with a loop 81, which is secured to one corner of the frame, as by a bolt 82, the arrangement being such that the guide member may be adjusted laterally as desired.
In this modification the circular shield 54 may be omitted, and its place taken by a pair of spaced apart rectangular plates 85. Each plate 85 carries an apertured collar S6, which is slidably mounted on a laterally extending rod 87, which includes an upwardly extending end portion SS which is bolted or otherwise secured as at 89 to the side of the frame 11. It will be obvious that the plates 85 may be positioned on either side of the nozzle assembly 4.6, as best shown in FIGURE 6, and may be moved transversely to vary the width of the strip to be painted. tSet screws 9% are provided in the collars 86 for holding the plates S5 in adjusted position as desired.
From the foregoing the use and operation of the device should now be readily apparent. When it is desired to paint a stripe on a roadway or the like, the motor 25 and air compressor 33 are started by the conventional manual means, and the apparatus moved into position by means of the handles 22. The front wheels 17, or 77, are suitably aligned with any desired marker or indicator. The device is then manually propelled by means of the handles 22, and the nozzle assembly 46 is actuated by lever 72 to paint a strip-e on the surface of the roadway.
When it is desired to use the spray gun for other purposes, the nozzle assembly 46 is disengaged from its supporting member 62, and may be carried in the hand and directed to any desired location.
From the foregoing it will now be seen that there is herein provided an improved apparatus which accomplishes all of the objects of this invention, and others, including many advantages of great practical utility and commercial importance.
As many embodiments may be made 'of this inventive concept, and as many modications may be made in the embodiment hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative, and not in a limiting sense.
In a paint spraying device, in combination, a rectangular shaped supporting platform, non-swiveling wheels carrying said platform, a motor carried by said platform, a compressor on said platform, a driving connection between said motor and said compressor, a compressed air tank on said platform, a connection between said compressor and said tank, a paint receptacle on said platform, a spray nozzle, a tiexible connection between said paint receptacle and said spray nozzle; a second ilexible connection between said compressed air tank and said spray nozzle, a control cord for said spray nozzle, a U- shaped horizontally disposed support secured to said platform, a depending lug having an aperture formed therein secured to said U-shaped member, an inverted substantially Ushaped member having an elongated slot formed in one leg thereof, a bolt extending through said elongated slot and the aperture in said lug to vertically position said inverted U-shaped member, a guide pulley assembly horizontally positioned on the apex of said inverted U-shaped member, to receive said control cord, bolts extending transversely between and through both legs of said inverted U-shaped member adapted to maintain said spray nozzle in downwardly directed position for painting a stripe on a surface over which said striping device is moved, a handle extending from said platform for manual movement of said device, said control means being carried by said handle at a point remote from said nozzle, rods extending laterally from said platform, a pair of spaced parallel paint directing guide plates on opposite sides of said nozzle, set screw assemblies slidably mounted on said rods for adjusting said plates laterally relative to said nozzle to vary the width of the strip v painted thereby, and a guide pointer pivotally mounted on said frame adjacent the forward end thereof and extending forwardly and downwardly in alignment with said spray nozzle.
References Cited in the le of this patent UNITED STATES PATENTS Re. 24,008 Mosher May 24, 1955 1,999,563 Glasgow Apr. 30, 1935 2,064,504 Thompson Dec. 15, 1936 2,065,998 Emmons Dec. 29, 1936 2,317,288 McCubbin Apr. 20, 1942 2,351,719 Stahl June 20, 1944 2,812,211 Gardner Nov. 5, 1957