초록 ▼

A trailer (100) is disclosed having a trailer bed (106) that may be a drop center type trailer and a frame structure extending, including a forward frame (120), rearward frame (122) and upper beam (124) therebetween. Pivotable bunk assemblies (150, 160) having left and right portions are pivotably m

A trailer (100) is disclosed having a trailer bed (106) that may be a drop center type trailer and a frame structure extending, including a forward frame (120), rearward frame (122) and upper beam (124) therebetween. Pivotable bunk assemblies (150, 160) having left and right portions are pivotably mounted to the trailer side rails (105), the bunk portions pivotable between a deployed position extending over the trailer and a non-deployed position. A top frame (130) is hingedly attached to the upper beam and engages the bunk assemblies when it is in the closed position. Deployable, load-bearing sidewalls (102) are also optionally provided. The trailer is easily convertible between a configuration suitable for hauling logs in the deployed bunk assemblies and a configuration suitable for hauling other product--for example, wood chips or the like--with the bunk assemblies non-deployed, and the sidewalls deployed.

대표청구항 ▼

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A trailer comprising: a trailer bed mounted on at least one axle, the trailer bed having a left side rail, a right side rail, and a load-carrying portion between the left side rail and

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A trailer comprising: a trailer bed mounted on at least one axle, the trailer bed having a left side rail, a right side rail, and a load-carrying portion between the left side rail and the right side rail; a plurality of bunk structures, each bunk structure comprising a left bunk assembly mounted to the left side rail and a right bunk assembly mounted to the right side rail, wherein at least one of the left and right bunk assemblies are pivotable between a deployed position and a non-deployed position; wherein in the deployed position the left bunk assembly and the right bunk assembly cooperatively define an upwardly-facing U-shaped structure that extends across the load-carrying portion between the left side rail and the right side rail of the trailer bed; and further, wherein in the non-deployed position the left bunk assembly and the right bunk assembly substantially overlie the left side rail and right side rail such that the bunk structures do not overlie the load-carrying portion between the left side rail and right side rail of the trailer bed. 2. The trailer of claim 1, wherein the bunk structures comprise a horizontal bunk and a pair of oppositely disposed upright stakes. 3. The trailer of claim 2, wherein at least some of the horizontal bunks extend from one of the right side rail and the left side rail to the other of the right side rail and the left side rail when the bunk assembly is in the deployed position. 4. The trailer of claim 2, wherein both the left bunk assembly and the right bunk assembly are pivotable between the deployed position and the non-deployed position, and further comprising means for locking the left bunk assembly and the right bunk assembly in the deployed position. 5. The trailer of claim 2, wherein the bunk structures are adapted to supporting logs. 6. The trailer of claim 1, further comprising a frame structure attached to the trailer bed, the frame structure having a forward frame portion extending upwardly from a front end of the trailer bed, a rearward frame portion extending upwardly from a rear end of the trailer bed, and a main upper beam extending longitudinally from the forward frame portion to the rearward frame portion. 7. The trailer of claim 6, further comprising a deployable sidewall attached to the frame structure. 8. The trailer of claim 7, wherein the trailer bed further comprises a plurality of winch assemblies, and wherein the deployable sidewall includes a plurality of straps that are positioned to engage the plurality of winch assemblies. 9. The trailer of claim 6, further comprising a top frame pivotably attached to the main upper beam. 10. The trailer of claim 9, further comprising an actuator attached to the top frame. 11. The trailer of claim 10, wherein the actuator is a hydraulic cylinder. 12. The trailer of claim 9, wherein the top frame includes a plurality of pivotable members, each pivotable member being positionable to engage an upper end of one of the plurality of bunk structures. 13. The trailer claim 9, wherein one of the left and right bunk assemblies is pivotably attached to the main upper beam. 14. The trailer of claim 1 wherein in the deployed position the plurality of bunk structures is wider than the trailer bed. 15. The trailer of claim 1, wherein the trailer bed is a drop center trailer bed. 16. The trailer of claim 6 further comprising a rear panel attached to the rearward frame portion at an upper end of the rear panel. 17. A trailer comprising: (a) a trailer bed having oppositely disposed first side rail and second side rail portions; (b) a frame structure extending upwardly from the trailer bed, the frame structure comprising a forward frame portion, a rearward frame portion, and an elongate beam connecting the forward frame portion to the rearward frame portion; and (c) a two-part bunk assembly having an L-shaped first portion pivotably attached to the first side rail and including a first bunk and a first stake, and an L-shaped second portion pivotably attached to the second side rail and including second bunk and a second stake; wherein the bunk assembly first portion is also pivotably attached to the elongate beam such that the first portion is pivotable about an axis between the first side rail and the elongate beam, and wherein the bunk assembly first portion and second portion are pivotable between a deployed position wherein the first bunk and second bunk extend over the trailer bed, and a non-deployed position wherein the first bunk and second bunk are positioned parallel to the first side rail and second side rail, respectively. 18. The trailer of claim 17, further comprising a top frame having a first side and a second side, the first side being hingedly attached to the elongate beam such that the top frame can be moved between an open position wherein the second side is disposed above the first side, and a closed position wherein the second side engages the second portion of the two-part bunk assembly. 19. The trailer of claim 18, further comprising first and second deployable sidewalls. 20. A trailer comprising: (a) a trailer bed having a first side rail and a second side rail; (b) a frame structure extending upwardly from the trailer bed, the frame structure having a forward frame portion, a rearward frame portion, and an elongate beam connecting the forward frame portion to the rearward frame portion; (c) a plurality of bunk assemblies attached to, and extending upwardly from, the trailer bed, the bunk assemblies including at least one horizontal bunk and a plurality of upright stakes; and (d) a top frame having a first longitudinal side hingedly attached to the elongate beam and a second longitudinal side having a plurality of capture bells, the top frame being movable between an open position wherein the second side is disposed above the first side, and a closed position wherein the top frame is substantially horizontal and the plurality of capture bells engage the plurality of bunk assemblies. 21. The trailer of claim 20, wherein the plurality of bunk assemblies each include a first portion pivotably attached to the first rail, and a second portion pivotably attached to the second rail, such that the first and second portions can be pivoted from a deployed position wherein the at least one horizontal bunk extends transversely over the trailer bed, and a non-deployed position wherein the at least one horizontal bunk is generally parallel with the first and second side rails. 22. The trailer of claim 21, wherein at least some of the horizontal bunks extend from the first side rail to the second side rail when the bunk assembly is in the deployed position. 23. The trailer of claim 22, further comprising means for locking the bunk assemblies in the deployed position. 24. The trailer of claim 21, further comprising at least two deployable sidewalls attached to the frame structure. 25. The trailer of claim 24, wherein the trailer bed further comprises a plurality of winch assemblies, and wherein the at least two deployable sidewalls include a plurality of straps that are positioned to engage the plurality of winch assemblies. 26. The trailer of claim 21, further comprising an actuator attached to the top frame and adapted to move the top frame between the open position and the closed position. 27. The trailer of claim 21, wherein the capture bells are pivotably attached to the top frame with an extension member, such that the capture bells are positionable to engage the bunk assemblies when the bunk assemblies are in the deployed position and when the bunk assemblies are in the non-deployed position. 28. The trailer of claim 21 wherein the plurality of bunk structures is wider than the trailer bed. 29. The trailer of claim 21, wherein the trailer bed is a drop center trailer bed. 30. The trailer of claim 21 further comprising a rear panel attached to the rearward frame portion at an upper end of the rear panel.