Abstract
A roadside delineator device that includes a breakaway shear pin feature that allows the upper portion of the device to break away from the lower portion of the device during a vehicular accident. The upper and lower halves can be reconnected by replacing the broken shear pins. This allows the re-use of components and saves time and money by not having to install a completely new roadside delineator device.
Claims
1. A breakaway roadside delineator device comprising: an upper body fixedly attached to an upper post; a lower body fixedly attached to a lower post, wherein the lower post is sunk into ground to hold the delineator device in place; a pair of shear pins, wherein the shear pins include a plurality of V-shaped grooves that act as shear points when the upper post is struck by a vehicle; the lower body further comprising four buttress-like longitudinal corners, each corner comprising a longitudinal aperture, the apertures being longitudinally aligned, wherein the four buttress-like corners form a longitudinal U-shaped channel and a crosswise U-shaped channel; the upper body further comprising a hollow longitudinal body attached to the upper post, the upper hollow body shaped to fit into the lower body longitudinal U-shaped channel, the upper body further comprising side portions shaped to fit into the lower body crosswise U-shaped channel, the side portions further comprising longitudinal apertures aligned with the lower body longitudinal apertures; the upper body removably attached to the lower body by the pair of shear pins inserted and spanning the longitudinally aligned lower and upper body apertures; and whereby when a vehicle hits the upper post, the pair of shear pins breaks causing the upper body and the upper post to separate from the lower body and lower post.
2. The breakaway roadside delineator of claim 1 wherein the shear pins are made of approximately 50% fiberglass, wherein the shear pins include a plurality of V-shaped grooves that act as shear points when the upper post is struck by a vehicle.
3. The breakaway roadside delineator of claim 1 wherein the upper post and the upper body can be reattached to the lower body and the lower post by replacing the shear pins with new shear pins.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The drawings constitute a part of this specification and include exemplary embodiments to the instant invention, which may be embodied in various forms. It is to be understood that in some instances various aspects of the instant embodiments may be shown exaggerated or enlarged to facilitate an understanding of the instant embodiment.
[0010] FIG. 1 is a front view of the entire roadside delineator device invention.
[0011] FIG. 2 is a perspective view of the roadside delineator device mounted in a hard substrate.
[0012] FIG. 3 is a partial perspective view of the invention.
[0013] FIG. 4 is a partial perspective view of the invention with the breakaway pins partially removed.
[0014] FIG. 5 is a partial perspective view of the invention with the breakaway pins completely removed.
[0015] FIG. 6 is an exploded view of the invention.
[0016] FIG. 7 is a second exploded view of the invention.
[0017] FIG. 8 is an exploded view showing the upper post about to be inserted into the middle body.
[0018] FIG. 9 is a side view of a breakaway pin.
[0019] FIG. 10 is a side view of the invention showing the upper body and upper post being pushed to one side after being struck by a vehicle.
[0020] FIG. 11 is a perspective view of the invention showing the upper body and upper post being pushed to one side after being struck by a vehicle.
[0021] FIG. 12 is a perspective view showing the upper body and upper post being completely pushed over after being stuck by a vehicle.
[0022] FIG. 13 is a side section view of the lower body.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0023] Referring now to FIG. 1 we see a front view of the entire roadside delineator device of the present invention 100. A lower post 8 is designed to be sunk into the ground. A lower body 6 is attached to the post 8. An upper body 4 is removably attached to the lower body as will be described in detail below. The upper post 2 is usually used to show drivers where the edge of the road is as it meets the shoulder of the road, a bicycle lane part of the roadway, or a pedestrians only part of the roadway. However other uses may be found such as creating a barrier to an item that should be avoided by a vehicle so that the vehicle will not hit the item.
[0024] FIG. 2 is a perspective view of the invention 100 as it is installed into a hard-flat substrate 10 such as packed dirt or concrete.
[0025] FIG. 3 is a partial perspective view clearly showing the lower body 6 and its relation to the hollow upper body 4. The upper body is held to the lower body by shear pins 12, 14 as they travel through buttress-like portions 22, 16, 24. The upper post 2 is fixedly attached to the upper body 4 via screws 20.
[0026] FIG. 4 is a partial perspective view showing the ends of pins 12, 14 as split and expanded to prevent them from sliding out of their apertures. The split ends of pins 12, 14 are referred to as number 30 in FIGS. 9, 11 and 13. A head on the opposite side of each pin 12, 14 prevents the pins 12, 14 from sliding in the opposite direction.
[0027] FIG. 5 is a partial perspective view showing the pins 12 completely removed from apertures 32, 34 of upper body 4. The pins have dual V-shaped groove shear points 26, 28 so that when a vehicle hits the upper post 8 the upper body 4 can break away from the lower body 6. The breakaway pins, otherwise known as shear pins 12, 14 are preferably made from fifty percent glass filled nylon. However other materials may be used. Because the lower 6 body and lower post 8 remain intact, the only items that need to be are the shear pins 12, 14. The lower body 6 and upper body 4 and upper post 8 should be in usable condition. In the worst case, the upper body 4 and upper post 8 can be replaced, but the lower body 6 and lower post 8 can remain in place thereby saving time and money that would be needed to replace parts 6 and 8.
[0028] FIG. 6 is an exploded view of the invention 100 depicting a lower body longitudinal U-shaped channel and a lower body crosswise U-shaped channel created by the buttress-like corners. Cross pin 36 penetrates aperture 38 in top portion 8A of lower post 8 which secures the lower post 8 and lower body 6 to upper body 4 and upper post 2. Apertures 48 align with apertures 52 as shown in FIG. 8 and are all attached by screws 20 as shown in FIG. 3. The cross pin 36 rests in depression 40 and a similar depression 42 as shown in FIG. 7.
[0029] FIG. 7 is a perspective view showing the underside of upper body 4 and lower body 6.
[0030] When the upper body 4 is placed within the lower body 6, apertures 44 align with apertures 34, and aperture 46 aligns with aperture 32 allowing shear pins 12, 14 to slide into the apertures to hold the upper body 4 together with the lower body 6.
[0031] FIG. 8 is an exploded view showing upper post 2 about to be inserted into upper body 4. Apertures 52 and 50 align to allow a screw 20 to fixedly attach the upper body 4 to the upper post 2.
[0032] FIG. 9 is a side view of shear pin, or breakaway pin 12. Two V-shaped grooves 26, 28 split the pin roughly in thirds. When a vehicle hits the upper post 2 the shear pin breaks at grooves 26, 28 causing the center portion 12B to remain with the lower body 6 and the left and right portions 12A, 12C to remain with the upper body 4. For replacement, a repair person would push out the broken shear pins 12, 14 and replace them with new unbroken pins.
[0033] FIG. 10 is a partial perspective view showing the upper body 4 after it has been hit causing shear pin 12 to break.
[0034] FIG. 11 is a partial perspective view of the upper body 4 partially lifted to expose the broken end 44 of shear pin 12.
[0035] FIG. 12 is a perspective view showing the upper body 4 completely rotated over after it has been hit exposing the broken end 44 of shear pin 12. When the upper post 2 has been hit, one or both shear pins 12, 14 may become broken. However, the upper body 4 and upper post 2 should remain in usable condition and should be able to be reconnected to lower body 6 by a new pair of shear pins 12, 14.
[0036] Detailed descriptions of the preferred embodiment are provided herein. It is to be understood, however, that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.
[0037] While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
