Brief Summary of the Invention
This invention relates to a mounting assembly for a school bus mirror.
A number of mounting assemblies for rear view mirrors for vehicles including buses are known in the art. The mounting assembly in accordance with the invention is particularly designed for convex mirrors to provide a driver with visual access to the area in front of the school bus, particularly to determine whether the area is clear of children. The mounting assembly includes one upright, generally Z-shaped tubular arm and one tubular brace. The generally Z-shaped arm includes an upright lower leg or portion, an intermediate leg or portion extending forwardly and upwardly from the lower leg, and an upper portion extending upwardly and rearwardly. Two one-piece brackets frictionally mount the lower leg of the upright arm on the side of the bus fender. The tubular brace has one end mounted on the front of the bus, usually on the front of the fender above the headlight. The other end of the brace is slotted and is frictionally connected to the intermediate leg of the main arm by another bracket or clamp. The slotted end of the brace is frictionally held by that bracket so that if the mounting assembly encounters an object, the brace can separate from the intermediate leg and arm can swing rearwardly, pivoting about the two brackets in which the lower leg is frictionally held.
The mounting assembly according to the invention is adaptable for a number of different bus designs or configurations. Further, with only one tubular arm and one tubular brace, and with the mounting brackets for the main arm being of one-piece construction, relatively few parts are involved and the mounting assembly is relatively inexpensive.
It is, therefore, a principal object of the invention to provide a mounting assembly for a mirror for a school bus which enables the bus driver to see the area in front of the bus otherwise hidden from direct view.
Another object of the invention is to provide a mirror mounting assembly for a school bus which can yield and swing back in the event an object is encountered.
Yet another object of the invention is to provide a mirror mounting assembly for a school bus which can be mounted on a variety of buses.
Still another object of the invention is to provide a mirror mounting assembly which is less expensive and involves fewer pieces.
Many other objects and advantages of the invention will be apparent from the following detailed description of a preferred embodiment thereof, reference being made to the accompanying drawings, in which:
Brief Description of the Drawings
FIG. 1 is a somewhat schematic, fragmentary view in perspective of a school bus on which two mirror mounting assemblies in accordance with the invention are mounted;
FIG. 2 is a side view in elevation of part of a fender and an upright, generally Z-shaped tubular arm of the mounting assembly;
FIG. 3 is an enlarged view in transverse cross section taken along the line 3--3 of FIG. 2;
FIG. 4 is a plan view of a tubular brace of the mounting assembly, taken generally along the line 4--4 of FIG. 2; and
FIG. 5 is an edge view of a connection between the upright arm and the tubular brace.
Detailed Description of the Preferred Embodiment
Referring to FIG. 1, a school bus indicated at 10 has a hood 12 and front fenders 14 and 16. The hood 12 causes a large area in front of the school bus to be hidden from direct view by the driver. Heretofore, children have been killed or injured when in this area and the bus moves forwardly.
Mirror mounting assemblies 18 and 20 are mounted on the fenders 14 and 16, respectively. The mounting assembly 18 has a rear view mirror 22 mounted thereon. The mounting assembly 20 has a rear view mirror 24 similarly mounted thereon and a front view mirror 26 with a convex reflecting surface. The mounting assemblies 18 and 20 are specifically designed for the front view mirror to position it so that the driver can see the hidden area in front of the bus. The various mirrors can be angularly adjusted to some extent by known pedestal posts having spherical heads received in central sockets in the backs of the mirrors with the pedestal posts having threaded shanks at the other ends.
Referring to FIGS. 2-5, the mounting assembly 18 includes a main upright, generally Z-shaped tubular arm 28 and a tubular brace 30. The tubular arm 28 has a lower upright leg or portion 32, an intermediate leg or portion 34 extending forwardly and upwardly, and an upper leg or portion 36 extending upwardly and rearwardly. The intermediate leg 34 forms an included angle of about 105.degree. to about 135.degree. and preferably about 120.degree. with the lower leg 32. The upper leg 36 forms an included angle of about 75.degree. to about 105.degree. and preferably about 90.degree. with the intermediate leg 34. The upper leg 36 has an upper flattened end 40 with a central hole 42 therein which can receive the threaded shank of the pedestal post which can be fixed thereto by suitable nuts and washers.
The lower upright leg 32 of the main arm 28 is affixed to the fender 14 by two one-piece mounting brackets 42. The brackets 42 are identical with the upper bracket 42 being shown in FIG. 3. It is made of one strip of metal and includes end flanges 44 and 46, parallel webs or shanks 48 and 50, and a partially cylindrical, intermediate portion 52. A bolt 56 extends through openings in the shanks 48 and 50 and receives a nut 58. When the nut 58 is tightened, the partially cylindrical intermediate portion 52 of the bracket frictionally engages the upright leg 32 of the main arm 28 to hold it in place. Bolts 60 extend through the flanges 44 and 46, through rubber washers 62, through the fender 14, through additional rubber washers 54 and through metal washers 66 where they threadedly receive nuts 68. This arrangement provides a secure attachment for the brackets 42 even when the fender 14 is of thinner fiber glas-reinforced plastic construction.
The tubular brace 30 has a flattened end 70 which can be mounted on a front portion of the fender 14 above a head-light or in a similar location. The flattened end 70 has a hole receiving a bolt 72 which extends through a rubber washer 74, the fender 14, another rubber washer 76, and a metal washer 78, threadedly receiving a nut 80. The other end of the tubular brace 30 also has a flattened end 82 which is generally perpendicular to the flattened end 70, in this instance. The flattened end 82 has a slot 84 extending longitudinally from an end edge of the flattened end 82 to an intermediate portion thereof. As shown in FIG. 5, a one-piece bracket or clamp 86 has end webs 88 and 90 located on the sides of the flattened end 82 and has an intermediate partially cylindrical portion 92. The latter portion extends around part of the intermediate leg 34 of the main arm 28 at a suitable location along its length. A bolt 94 extends through the web 88, the slot 84 of the flattened end 82, the web 90, and a metal washer 96. It threadedly receives a nut 98 which along with the bracket 86 connects the brace 30 to the main arm 28. The brackets 42 and 86 provide a secure connection for the mounting assembly 18 or 20 during normal operation. However, if the main arm 28 should encounter an object, it can yield to avoid injury. In such an instance, the slot 84 in the brace 30 enables the arm 28 to be separated from the brace 30. Since the brackets 42 frictionally engage the upright leg 32 of the main arm 28, the main arm can swing back to minimize possible injury.
As can be seen from above, the mounting assembly according to the invention is extremely adaptable and can be located on buses of various contours or designs. The mounting assembly can also be mounted on either the left or right fender. The brackets 42 can be mounted in various locations along the lower leg 32. The brace 30 likewise can be positioned at various locations along the intermediate leg 34 of the main arm 28 and the brace 30 can be pivoted to be mounted in various positions along the front of the bus. With the employment of only the main arm 28 and the one brace 30, and with the one-piece brackets 42 and 86, the number of pieces required for the mounting assembly are held to a minimum and also reduce the cost of the mounting assembly.
Various modifications of the above-described embodiment of the invention will be apparent to those skilled in the art and it is to be understood that such modifications can be made without departing from the scope of the invention, if they are within the spirit and the tenor of the accompanying claims.