Lift-and-tilt trailer

{
  "publication_number": "US10632891B2",
  "country": "US",
  "kind": "B2",
  "title": "Lift-and-tilt trailer",
  "abstract": "A trailer lift that rises to high levels that may tilt for loading and unloading. The trailer lift includes a lift-and-tilt mechanism, a trailer base, and a trailer platform. The lift-and-tilt mechanism includes a lower-strut link, an upper-strut link, a support member, a lower lift cylinder, and an upper cylinder. The lower-strut link and the upper-strut link are pivotably and terminally attached to each other. The support member is positioned offset to the lower-strut link and is pivotably attached to the upper-strut link to guide the upper-strut link. The trailer platform is terminally and pivotably connected to the upper-strut link. Similarly, the trailer base is pivotably and terminally connected to the lower-strut link and the support member. The upper lift cylinder is pivotably mounted in between the upper-strut link and the trailer platform. The lower lift cylinder is pivotably mounted between the upper-strut link and the lower-strut link.",
  "claims": [
    "1. A lift-and-tilt trailer comprises: an at least one lift-and-tilt mechanism; a trailer base; a trailer platform; the lift-and-tilt mechanism comprises a lower-strut link, an upper-strut link, a support member, a lower lift cylinder, and an upper lift cylinder; the lift-and-tilt mechanism being positioned in between the trailer base and the trailer platform; the lower-strut link and the upper-strut link being terminally and pivotably attached to each other; the support member being positioned offset to the lower-strut link along the upper-strut link; the upper-strut link being terminally and pivotably connected to the support member; the trailer platform being terminally and pivotably connected to the upper-strut link, opposite the lower-strut link; the trailer base being terminally and pivotably connected to the lower-strut link and the support member, opposite the upper-strut link; the upper lift cylinder being pivotably mounted in between the upper-strut link and the trailer platform; the lower lift cylinder being pivotably mounted in between the lower-strut link and the upper-strut link; a plurality of lower crossmembers; a plurality of upper crossmembers; the at least one lift-and-tilt mechanism comprises a first linkage and a second linkage; the first linkage and the second linkage being oriented parallel to each other; the first linkage and the second linkage being positioned offset to each other across the trailer base and the trailer platform; the plurality of lower crossmembers being distributed along the lower-strut link of the first linkage and the lower-strut link of the second linkage; each of the plurality of lower crossmembers being connected in between the lower-strut link of the first linkage and the lower-strut link of the second linkage; the plurality of upper crossmembers being distributed along the upper-strut link of the first linkage and the upper-strut link of the second linkage; each of the plurality of upper crossmembers being connected in between the upper-strut link of the first linkage and the upper-strut link of the second linkage; an initial lift cylinder; wherein the lift-and-tilt mechanism, the trailer platform, and the trailer base are configured into a collapsed configuration; the trailer platform being positioned parallel and adjacent to the trailer base; the initial lift cylinder being positioned in between the first linkage and the second linkage; a first end of the initial lift cylinder is perpendicularly connected to a select lower member from the plurality of lower crossmembers; and a second end of the initial lift cylinder being pressed against a select upper member from the plurality of upper crossmembers.",
    "2. The lift-and-tilt trailer as claimed in claim 1 comprises: the trailer platform being pivotably connected to the upper-strut link about a first axis; the upper-strut link and the lower-strut link being pivotably connected to each other about a second axis; the trailer base being pivotably connected to the lower-strut link about a third axis; the trailer base being pivotably connected to the support member about a fourth axis; the upper-strut link being pivotably connected to the support member about a fifth axis; the first axis, the second axis, the third axis, the fourth axis, and the fifth axis being oriented parallel to each other; the third axis and the fourth axis being positioned offset to each other along the trailer base; and the second axis and the fifth axis being positioned offset to each other along the upper-strut link.",
    "3. The lift-and-tilt trailer as claimed in claim 2 comprises: a first end of the upper lift cylinder and a second end of the lower lift cylinder being positioned offset to each other along the upper-strut link; the first end of the upper lift cylinder being pivotably mounted to the upper-strut link, adjacent to the first axis; a second end of the upper lift cylinder being positioned offset to the first axis along the trailer platform; and the second end of the upper lift cylinder being pivotably mounted to the trailer platform.",
    "4. The lift-and-tilt trailer as claimed in claim 2 comprises: a first end of the upper lift cylinder and a second end of the lower lift cylinder being positioned offset to each other along the upper-strut link; the second end of the lower lift cylinder being pivotably mounted to the upper-strut link, adjacent to the second axis; a first end of the lower lift cylinder being pivotably mounted to the lower-strut link, adjacent to the second axis; and the fourth axis being positioned in between the second end of the lower lift cylinder and the second axis.",
    "5. The lift-and-tilt trailer as claimed in claim 1 comprises: the trailer base comprises a structural frame, an at least one pair of wheels, and a plurality of drop-legs; the plurality of drop-legs being perimetrically distributed about the structural frame; each of the plurality of drop-legs being oriented normal to the structural frame; each of the plurality of drop-legs being laterally mounted to the structural frame; the pair of wheels being coaxially positioned opposite to each other, across the structural frame; and each of the pair of wheels being laterally and rotatably mounted to the structural frame.",
    "6. The lift-and-tilt trailer as claimed in claim 1 comprises: an electric generator; an at least one hydraulic pump; the lower lift cylinder and the upper lift cylinder being a hydraulic lift; the hydraulic pump and the electric generator being mounted to the trailer base; the hydraulic pump, the lower lift cylinder, and the upper lift cylinder being in fluid communication with each other; and the electric generator being electrically connected to the hydraulic pump.",
    "7. The lift-and-tilt trailer as claimed in claim 1 comprises: a triangular-shaped frame; a drive wheel assembly; the drive wheel assembly comprises a U-shaped frame, a first motorized wheel, a second motorized wheel, a control lift cylinder, and a mounting arm; the triangular-shaped frame being laterally connected to the trailer base; the drive wheel assembly being positioned within the triangular-shaped frame; the first motorized wheel being perpendicularly and rotatably mounted to a first leg of the U-shaped frame; the second motorized wheel being perpendicularly and rotatably mounted to a second leg of the U-shaped frame; the mounting arm being rotatably and centrally mounted to a connecting web of the U-shaped frame; the triangular-shaped frame being terminally and rotatably connected to the mounting arm, opposite to the U-shaped frame; and the control lift cylinder being pivotably mounted in between the mounting arm and the triangular-shaped frame.",
    "8. The lift-and-tilt trailer as claimed in claim 7 comprises: a trailer hitch coupler; the trailer hitch coupler being positioned adjacent to the triangular-shaped frame, opposite to the trailer base; and the trailer hitch coupler being laterally connected to the triangular-shaped frame."
  ],
  "description_excerpt": "The current application claims a priority to the U.S. Provisional Patent application Ser. No. 62/482,521 filed on Apr. 6, 2017.\n\nThe present invention relates generally to towing devices and towing trailers. More specifically, the present invention is a highly mobile trailer with lifting and tilting capabilities that may be hooked up and transported by trucks, mobile homes, and other similar vehicles.\n\nOftentimes, it can be hard and difficult for people to work in high places. Ladders and platforms can be tedious to put up and take down each time. Additionally, ladders and platforms are usually accompanied with a certain risk to the user. Traditional scissor lifts are limited in two main ways. The first, traditional scissor lifts are limited to heights that may be achieved. The second, traditional scissor lifts are only capable of lifting and lowering a platform.\n\nIt is therefore an object of the present invention to introduce an apparatus for a lift trailer that is capable of achieving relatively high heights and is capable of tilting in order to load and unload cargo or personnel. The present invention is a lift and tilt platform implemented as a trailer. This allows the user to easily transport the present invention by hitching up the present invention to a truck or other suitable vehicle. Additionally, the present invention utilizes a unique lifting mechanism that is capable of lifting a large load to a significant height while also being able to tilt for loading and unloading said large load.",
  "cpc": [
    "B60P 1/34",
    "B60D 1/665",
    "B60P 1/162",
    "B60P 1/165",
    "B62D 59/04",
    "B62D 63/06",
    "B62D 63/068",
    "B66F 11/042",
    "B66F 7/00",
    "B66F 7/0683"
  ],
  "ipc": [
    "B60D 1/66",
    "B60P 1/16",
    "B60P 1/34",
    "B62D 59/04",
    "B62D 63/06",
    "B66F 11/04",
    "B66F 7/00",
    "B66F 7/06"
  ],
  "inventors": [
    "Paul A. Derstine"
  ],
  "filing_date": "2018-04-06",
  "publication_date": "2020-04-28",
  "grant_date": "2020-04-28",
  "priority_date": "2017-04-06",
  "application_number": "US-201815947761-A",
  "family_id": "63710662",
  "cited_by_count": 4,
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    "US5249642A",
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    "US20170232880A1",
    "US20180043811A1"
  ]
}