US 3513577 A
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Description (OCR text may contain errors)
May 26, 1970 F. KLEINMAN SI'GN"HAVING ADJUSTABLE BAND Filed Feb. 16. 1968 INVENTOR. 4M//|//1/4/1/ ATTORNEY United States Patent O 3,513,577 SIGN HAVING ADJUSTABLE BAND Paul Kleinman, Bedford, N.Y. 10516 Filed Feb. 16, 1968, Ser. No. 706,111 Int. Cl. G09f 11/29 U.S. Cl. 40-86 3 Claims ABSTRACT OF THE DISCLOSURE A sign comprising a housing having a transparent front Section of U-shape in dross section. A rear section is secured to said front section and has a central portion arranged in close proximity to the front section dening a guideway. The rear section has a pair of angle portions integral with the central portion deiining in conjunction with the front section a pair of chambers. A pair of plates are disposed on opposite ends of the housing. A pair of shafts are rotatably mounted in the plates with the shafts extending through the chambers. A sign band of stressed self-winding material is secured at its ends to the shafts and has a portion in the guideway. Knob means are provided for selectively rotating the shafts lfor bringing a selected portion of the band into the guideway for permitting observation thereof through the transparent front section.
This invention relates to a sign for use in complying with the requirements for placarding of motor transports with dangerous cargo, and more particularly to an easily mounted, com-pact, durable, self-contained device which enables a truck operator to change the markings on a vehicle equipped with this invention at will and without loss of time either at terminals or en route, while also providing for a substantial number of different types of cargo.
An object of this invention resides in the provision of a sign which will enable the changing from one inscription to another in the matter of only a few seconds.
The construction of this invention features a corrosionresistant sign having a housing of a transparent plastic material which is so arranged that the sign band movably mounted in the housing is itself resistant to dirt and soil and is protected from dirt and weather.
Another object of the invention resides in a provision of a sign which eliminates the necessity of gears, springs or ratchets which are subject to malfunction and rattling due to vibration.
An additional object of the invention resides in the provision of a sign which will provide substantial savings in both the drivers time and in the total cost of material when compared with single use paper or adhesive back placards which may be easily misplaced and thereby subject the truck operator to inadvertent and unintended violations of various requirements and regulations.
These, together with the various ancillary objects and features of this invention, which will become apparent as the following description proceeds, are attained by this sign, a preferred embodiment of which is illustrated in the accompanying drawing, by way of example only, wherein:
FIG. l is a perspective view of a sign constructed in accordance with the concepts of the present invention;
FIG. 2 is an end elevational view lookingl in the direction of arrows 2-2 in FIG. l;
FIG. 3 is an enlarged vertical sectional view taken along the plane of line 3-3 in FIG. 2;
FIG. 4 is an enlarged horizontal sectional detail view taken along the plane of line 4 4 in FIG. 2;
FIG. 5 is an exploded perspective detail view showing the manner in which the shafts are journalled in the plates; and,
FIG. 6 is a schematic diagram of the sign band.
With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 generally designates a sign constructed in accordance with the concepts of the present invention. The sign includes a housing 12 having a front section 14 of a molded transparent plastic material of a substantially U-shape in cross section and vbeing provided with a flat front sur-face 16, an upper portion 18 and a lower portion 20. At the end of the upper portion 18 are flanges 22 and 24, and flanges 26 and 28 are formed at the lower portion 20.
The housing 12 also includes a rear section 30 having a central portion 32 closely adjacent the llat front 16 and forming a guideway 34 therebetween. The central portion terminates well below the top 18 and well below the bottom 20 and angle portions 36 and 38 integral with the central portion 30 are provided. The uppermost end 40 of the angle portion 36 extends between the flanges 22 and 24 and is bonded thereto preferably in a fluidtight manner. Likewise, the bottommost end 42 of the angle portion 38 is received between the flanges 26 and 28 and is bonded to the front section 12 preferably in a fluidtight manner. The angle section 36 forms, in conjunction with the front section 14, an upper chamber 44, and a lower chamber 46 is formed between the angle -portion 38 and the front section 14.
A pair of plates 48 and 50 are provided at the sides of the housing 12. Disposed between the plates 48 and 50 and the housing are a pair of substantially U-shaped vibration damping members 51 formed of foamed plastic material or other suitable rubber-like or resilient material. The plates 48 and 50 are provided with flanges 52 and 54 and gaskets as may be desired or found necessary may be introduced between the flanges 52 and 54 and the housing 12.
Shafts 56 and 58 extend through the chambers 44 and 46 respectively, and as can be seen best in FIGS. 4 and 5 extend through the plates 48 and 50 which are provided with suitable holes 59 therethrough. Rotatably mounting the shafts in each of the holes 59 provided in the plates 48 and 50 are split ring thrust bearings 60 which have cylindrical bearing portions 62 and planar bearing portions 64. A rib 66 extends about the inner periphery of each bearing -60 and inwardly of the plates 48 and 50 for reception of a wire type clip 68 for use in holding the split ring bearing in assembled position and for preventing disengagement of the bearing from within the hole 59 and about the shaft which it journals.
Pairs of knobs 70 on the opposite side of each of the shafts 56 and 58 are used for the first purpose of rotating the shafts 56 and 58 as may be desired. The knobs 70, further cap the end of the shafts 56 and 58 and are held in place by pins 72 which extend through bores 74 in the shafts and 76 in the knob 70. The knobs 70 may have an outer surface knurled or ribbed for convenient grasping and rotation thereof. The pins 72 hold the knobs tightly against the planar surface 64 of the thrust bearings which in turn cause the plates to be tightly held against the hous- 3 ing compressing the vibrating damping means 51 between the plates 48 and 50 and the housing 12. The plates have detents (not shown) of small size extending into the split of the bearings 60 for preventing rotation thereof. The clip 68 also serves the purpose of rendering the bearing self adjusting for various sized shafts.
A pair of slotted retainer tubes 78 and 80 are provided and hold the ends of a band 82 of stressed self-winding plastic material such as mylar to the shafts 56 and 58. The band 82 has a selected portion intermediate at the ends disposed in the guideway 34 and Visible through the ltransparent front section 14. The mylar is pre-stressed so that it is self-winding in either `direction about the shafts 56 and 58 so that rotation of either the upper shaft or lower shaft can select a certain portion of the band 82 for visual display through the transparent front section 14. These signs are especially adapted for use by trucks in accordance with certain present Interstate Commerce Commission requirements, for example, may be provided with indicia in various required color inscriptions including the words Poison, Corrosives, Flammable, Dangerous, Drive Safely, Flammable Gas, Compressed Gas, Oxidizers, Radioactive, Explosives A and Explosives B. Of course, the sign may be used for vehicles such as buses or the like to indicate `destination or routes and may be used for innumerable other purposes. Its compact design which includes a pair of `brackets '90 integrally formed with the plates and having apertures 92 therethrough permits its attachment by rivets, sheet metal screws, bolts or other suitable fasteners to the rear overhead doors of trucks or trailers, or on each of the four sides of a truck, or on any other convenient location.
A latitude of modification, substitution and change is intended in the foregoing disclosure, and in some instances, some features of the invention will be employed without a corresponding use of other features. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the spirit and scope of the invention herein.
1. A sign comprising a housing having a transparent front section of U-shape in cross section, a rear section securing to said front section and having a central portion arranged in close proximity to said front section defining a guideway, said rear section having a pair of angle portions integral with said central portion and defining in conjunction with said front section a pair of chambers, a pair of plates at opposite ends of said housing, a pair of shafts rotatably mounted in said plates, said shafts extending through said chambers, a sign band securing at its ends to said shafts and having a portion in said guideway, knob means for selectively rotating said shafts for bringing a selected portion of said band into said guideway for permitting observation thereof through said transparent front section, thrust bearings journalling said shafts in said plates, said knobs abutting said thrust bearings, means securing said knobs to said shafts so that said knobs in engagement with said thrust bearings hold said plates to said housing, said thrust bearings including split rings provided with cylindrical and planar bearing surfaces, and wire clip means for holding said thrust bearings on said plates.
2. A sign according to claim 1, including vibration damping means `disposed between said plates and said housing.
3. A sign according to claim 2, including bracket means for mounting the sign integrally formed with said plates.
References Cited UNITED STATES PATENTS 1,642,580 9/1927 Erb 40-86 X 2,485,802 10/ 1949 Asachika 40-86 3,159,937 12/1964 Barnes 40-86 X 3,316,668 5/1967 Rogers 40-86 X EUGENE R. CAPOZIO, Primary Examiner W. H. GRIEB, Assistant Examiner