Trailer stabilizer
First Claim
1. A trailer stabilizing device for stabilizing a parked semi-trailer, the trailer stabilizing device comprising a frame separate from a support frame of the parked semi-trailer, the stabilizing device frame having mounted thereto a wheel, the stabilizing device including a semi-trailer load bearing repositionable jack operatively coupled to a trailer plate configured to engage the parked semi-trailer, the semi-trailer load bearing repositionable jack configured to deploy in a first direction to contact the ground while the trailer plate engages or is repositioned to engage the parked semi-trailer, the semi-trailer load bearing repositionable jack is operatively coupled to a spring that is operatively coupled to the wheel to allow the semi-trailer load bearing repositionable jack to float with respect to the wheel, wherein a spring load, applied to the spring, decreases between the semi-trailer load bearing repositionable jack occupying a non-load bearing position having the semi-trailer load bearing repositionable jack floating with respect to the wheel and a load bearing position having the semi-trailer load bearing repositionable jack wedged between the ground and the semi-trailer.
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Accused Products
Abstract
A trailer stabilizing device for stabilizing a parked freight trailer, the trailer stabilizing device comprising a frame separate from the support frame of the parked freight trailer, the stabilizing device frame having mounted thereto wheels and a hitch, the stabilizing device including a repositionable jack.
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Citations
19 Claims
- 1. A trailer stabilizing device for stabilizing a parked semi-trailer, the trailer stabilizing device comprising a frame separate from a support frame of the parked semi-trailer, the stabilizing device frame having mounted thereto a wheel, the stabilizing device including a semi-trailer load bearing repositionable jack operatively coupled to a trailer plate configured to engage the parked semi-trailer, the semi-trailer load bearing repositionable jack configured to deploy in a first direction to contact the ground while the trailer plate engages or is repositioned to engage the parked semi-trailer, the semi-trailer load bearing repositionable jack is operatively coupled to a spring that is operatively coupled to the wheel to allow the semi-trailer load bearing repositionable jack to float with respect to the wheel, wherein a spring load, applied to the spring, decreases between the semi-trailer load bearing repositionable jack occupying a non-load bearing position having the semi-trailer load bearing repositionable jack floating with respect to the wheel and a load bearing position having the semi-trailer load bearing repositionable jack wedged between the ground and the semi-trailer.
- 12. A trailer stabilizing device for stabilizing a parked semi-trailer, the trailer stabilizing device comprising a frame separate from a support frame of the parked semi-trailer, the stabilizing device frame having mounted thereto a wheel, the stabilizing device including a passive suspension to float a semi-trailer load bearing repositionable jack with respect to the wheel when the semi-trailer load bearing repositionable jack is not wedged between the semi-trailer and the ground in a load bearing position, wherein a load on the passive suspension decreases as the semi-trailer load bearing repositionable jack is repositioned from a floating position to the load bearing position.
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19. A semi-trailer stabilizing device for stabilizing a parked semi-trailer, the semi-trailer stabilizing device comprising a frame separate from a support frame of the parked semi-semi-trailer, the stabilizing device frame having mounted thereto an axle and at least two wheels mounted to the axle, the stabilizing device including first and second semi-trailer load bearing repositionable jacks operatively coupled to a semi-trailer plate configured to engage the parked semi-trailer, the first and second semi-trailer load bearing repositionable jacks configured to deploy in a first direction to contact the ground while the semi-trailer plate is repositioned by the first and second semi-trailer load bearing repositionable jacks in a second direction opposite the first direction to engage the parked semi-semi-trailer, the first and second semi-trailer load bearing repositionable jacks are operatively coupled to a spring that is operatively coupled to the axle and the at least two wheels, the spring is configured to allow the first and second semi-trailer load bearing repositionable jacks to float with respect to the axle and the at least two wheels, wherein the first and second semi-trailer load bearing repositionable jacks include a drive shaft extending therebetween, where at least a portion of the drive shaft extends on opposing sides of at least one of the first and second semi-trailer load bearing repositionable jacks, and where the frame includes a frame rail extending parallel to the drive shaft and the axle, and where the frame rail extends perpendicular to the first and second semi-trailer load bearing repositionable jacks.
Specification