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There is "no way" this tire is going anywhere with this contraption on it. Well, I built a pair of "single axle locking chocks". The concept came to me slowly but once I've figured out how to make an adjustable unit it went together rather well. |
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This picture shows the mismatch of wheel chock to tire diameter. How is this suppose to prevent movement when the tire is only being supported at the base. I matched the contour of my tire by taking a piece of cardboard and trimming it with scissors while laying on the garage floor. I then used the profile of the cardboard to trace onto the wood where I wanted to cutout the matched tire shape. |
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As for the design.... chock #1 (made of Oak) has an I-bolt on the inside edge. There is a cable attached to the I-bolt that travels from one chock to the other chock on the inside edge of the wheel. The cable continues by wrapping around the second chock (within a curved valley) then back toward the initial chock. The second chock acts as a "pulley". Before the cable reaches the first chock, (opposite side of the tire from which it started) a short section of chain is added to the end of the cable. A "toggle clamp" is mounted to the first chock. The clamp reaches out to hook onto a link of chain then the clamp is actuated and the two chocks are pulled towards each other . The chain section is an adjustable means to use this device on a variety of tire diameters and uneven ground contours. |
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The Hook Style Toggle Clamp pictured here is similar to the clamps I use on fixtures at work. These clamps are adjustable, rigid, and extremely dependable. |
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Features integrated into chocks:
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Click on any of the three pictures below for a larger view |
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I finally purchased the "BAL single axle trailer leveler" from "JC Whitney". While online I noticed BAL also had an aluminum single axle trailer tire locking chock. It seamed like a light bulb went on when I realized just how well something like that could work. Rather than purchasing the chock set, I decided to build my own. It may be on the heavy side, and could have been made with cheaper materials, but sometimes it's more important to build a better mouse-trap. |
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This mod really is a bad example when it comes to costs. I built this mod with a blind eye to supply cost and focused on function.... sorry.The Oak board cost ~$40-
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Have you ever "set" your wheel chocks only to find later that one or
more had moved? It also doesn't help that the plastic jobbers sold by most
RV-parts places don't even come close to matching the shape of your tire. This
modification addresses the problem, and adds one or two improvements to
make this "locking-wheel-chock"
a long awaited improvement.
