US3979133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable trailer
Assignee: SPEC CO IND Inc
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Filing: 1975-09-08
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Granted: 1976-09-07
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Expires: 1995-09-08
Abstract
Abstract A foldable trailer having a frame formed of a pair of side frame members pivoted at their forward ends for movement in the direction toward and away from each other between folded and unfolded positions respectively, a tail gate pivoted at one end to one of the side frame members with means for securing the other end to the other of the side frame members when in unfolded position, a mid cross bar member pivoted to the other of the side frame members and means for securing the other end of the mid cross bar to the opposite side member when in unfolded position, wing members pivotally mounted on the forward end portions of the side frame members for movement between folded and unfolded positions with means for latching the wing members in unfolded position, a wheel supporting axle subdivided into sections for collapse and means for securing the sections when in unfolded position to extend crosswise of the side frame members, and a floor panel adapted to be supported on the frame when in unfolded position.
Inventors
- 👤 William E. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:08
CPC Classifications
B; B62; B62D; B62D21/00; B62D21/14; B62D63/00; B62D63/06; B62D63/061
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
378 words
A foldable trailer comprising a frame assembly which includes a pair of rigid side frame members in which each member of the pair is pivotally mounted for rocking movement in a horizontal plane about their forward end portions between folded and unfolded positions of adjustment, said side frame members having a rearward portion which extends in spaced parallel relation and a forward portion which extends angularly in the direction towards each other to converge towards the longitudinal center line of the frame, a tail gate pivotally mounted at one end to the rearward end portion of one of the side frame members for rocking movement between folded and unfolded position, and means releasably latching the other end portion of the tail gate to the rearward end portion of the other of the side frame members when in unfolded position, at least one mid cross brace member pivoted at one end to a mid portion of one of the side frame members for rocking movement in a horizontal plane between folded and unfolded positions and means releasably latching the other end of the mid cross brace member to the other side frame member when in unfolded position to extend crosswise between the side frame members, an axle assembly subdivided into segments including a pair of outer segments and a pair of inner segments, means supporting the outer segments from the outer side frame members, means pivotally mounting the outer ends of the inner segments to the inner segments to the inner ends of the outer segments for rocking movement of the inner segments relative to the outer segments about a horizontal plane and means pivotally interconnecting the inner ends of the inner segments for relative rocking movement about a horizontal plane between folded and unfolded positions of adjustment, and latching means for releasably locking the inner segments against pivotal movement from unfolded position with the segments extending crosswise of the frame, wing members pivotally mounted to the forward end portion of the side frame members for rocking movement about a horizontal plane between spread and folded positions of adjustment, and means for releasably latching the wing members in unfolded position to extend outwardly from the side frame members, and tongue means for connecting the frame to a powered vehicle.
Claim 2
Dependent Claim
378 words
A foldable trailer comprising a frame assembly which includes a pair of rigid side frame members in which each member of the pair is pivotally mounted for rocking movement in a horizontal plane about their forward end portions between folded and unfolded positions of adjustment, said side frame members having a rearward portion which extends in spaced parallel relation and a forward portion which extends angularly in the direction towards each other to converge towards the longitudinal center line of the frame, a tail gate pivotally mounted at one end to the rearward end portion of one of the side frame members for rocking movement between folded and unfolded position, and means releasably latching the other end portion of the tail gate to the rearward end portion of the other of the side frame members when in unfolded position, at least one mid cross brace member pivoted at one end to a mid portion of one of the side frame members for rocking movement in a horizontal plane between folded and unfolded positions and means releasably latching the other end of the mid cross brace member to the other side frame member when in unfolded position to extend crosswise between the side frame members, an axle assembly subdivided into segments including a pair of outer segments and a pair of inner segments, means supporting the outer segments from the outer side frame members, means pivotally mounting the outer ends of the inner segments to the inner segments to the inner ends of the outer segments for rocking movement of the inner segments relative to the outer segments about a horizontal plane and means pivotally interconnecting the inner ends of the inner segments for relative rocking movement about a horizontal plane between folded and unfolded positions of adjustment, and latching means for releasably locking the inner segments against pivotal movement from unfolded position with the segments extending crosswise of the frame, wing members pivotally mounted to the forward end portion of the side frame members for rocking movement about a horizontal plane between spread and folded positions of adjustment, and means for releasably latching the wing members in unfolded position to extend outwardly from the side frame members, and tongue means for connecting the frame to a powered vehicle.
Claim 3
Dependent Claim
39 words
A foldable trailer as claimed in claim 1 in which the side frame members, tail gate, cross brace members and wing members are in the form of channel sections having a flat upper surface with a depending bail portion.
Claim 4
Dependent Claim
43 words
A foldable trailer as claimed in claim 2 in which the upper surfaces of the side frame members, tail gate, mid cross brace members and wing members are at a uniform level, when in unfolded position, to provide support for a floor panel.
Claim 5
Dependent Claim
25 words
A foldable trailer as claimed in claim 1 which includes a floor panel adapted to be positioned on the frame assembly when in unfolded position.
Claim 6
Dependent Claim
48 words
A foldable trailer as claimed in claim 4 which includes cornering brackets extending upwardly from outer edge portions of the elements making up the frame assembly to define a space therebetween corresponding to the dimensions of the floor panel to receive the floor panel in fitting relation therebetween.
Claim 7
Dependent Claim
32 words
A foldable trailer as claimed in claim 1 in which the tail gate is mounted to swing forwardly about its pivot to lie alongside the side frame member when in folded position.
Claim 8
Dependent Claim
55 words
A foldable trailer as claimed in claim 1 in which the mid cross brace member is pivoted to the side frame member opposite that to which the tail gate is pivoted and in which the mid cross brace member is mounted to swing rearwardly to lie alongside the side frame member when in folded position.
Claim 9
Dependent Claim
31 words
A foldable trailer as claimed in claim 1 which includes wheels rotatably mounted on the outer end portions of the outer axle segments which extend outwardly beyond the side frame members.
Claim 10
Dependent Claim
45 words
A foldable trailer as claimed in claim 1 which includes a leaf spring assembly suspended from the underside of each of the side frame members to extend longitudinally thereof and in which the outer axle members are secured to the leaf spring members for support.
Claim 11
Dependent Claim
74 words
A foldable trailer as claimed in claim 1 in which the inner axle segments are pivoted from the inner ends of the outer segments in a manner to rock in the forwardly direction about their pivot to folded position whereby the inner segments extend longitudinally of the frame alongside each other when in folded position, while the inner ends of the outer segments are substantially aligned to extend crosswise in end to end relation.
Claim 12
Dependent Claim
78 words
A foldable trailer as claimed in claim 1 in which the tongue means comprises an elongate housing secured to the frame to extend longitudinally along the center line thereof, an elongate tongue member supported within the housing for relative longitudinal movement between extended and retracted positions of adjustment, and means for securing the tongue to the housing when in extended position and when in retracted position, and a trailer hitch on the forward end portion of the tongue.
References Cited (Backward Citations)
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US2706881A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |