IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0421621
(2006-06-01)
|
등록번호 |
US-7810834
(2010-11-01)
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발명자
/ 주소 |
- Schneider, Stacy L.
- Schneider, Michael D.
|
대리인 / 주소 |
Kunzler Needham Massey & Thorpe
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
14 |
초록
▼
An apparatus and system are disclosed for an expandable trailer. The apparatus, in one embodiment, is an expandable trailer that lengthens from a compact position to one of a plurality of extended positions. The trailer may comprise an axle assembly to mount a plurality of wheels, a frame having a f
An apparatus and system are disclosed for an expandable trailer. The apparatus, in one embodiment, is an expandable trailer that lengthens from a compact position to one of a plurality of extended positions. The trailer may comprise an axle assembly to mount a plurality of wheels, a frame having a front and a back, and an extension mechanism configured to lengthen the frame from a compact position to one of a plurality of extended positions, such that the front extends a front distance from the axle assembly and the back extends a rear distance from the axle assembly. The extension mechanism further maintains a proportionally greater front distance than the rear distance. As a result, the expandable trailer provides a properly distributed load-bearing area, with respect to the axle assembly, in the compact position as well as the various extended positions.
대표청구항
▼
What is claimed is: 1. An expandable trailer comprising: an axle assembly configured to mount a plurality of wheels; a frame having a front and a back; and an extension mechanism configured to lengthen the frame from a compact position to one of a plurality of extended positions, such that the exte
What is claimed is: 1. An expandable trailer comprising: an axle assembly configured to mount a plurality of wheels; a frame having a front and a back; and an extension mechanism configured to lengthen the frame from a compact position to one of a plurality of extended positions, such that the extension mechanism extends the front of the frame a front distance from the axle assembly and extends the back of the frame a rear distance from the axle assembly, the extension mechanism maintaining a proportionally greater front distance than the rear distance. 2. The trailer of claim 1, wherein the front distance is between about 50 to about 80 percent of a total frame length from the front to the back and the rear distance is between about 20 to about 50 percent of the total frame length. 3. The trailer of claim 1, further comprising one or more supports, each support configured to engage the frame and support a load. 4. The trailer of claim 1, further comprising a securing mechanism configured to selectively secure the frame in one of the compact position and one of the extended positions. 5. The trailer of claim 1, further comprising a linkage configured to simultaneously and proportionally extend and retract the front and the back in response to operation of the extension mechanism. 6. The trailer of claim 5, wherein the linkage is selected from the group consisting of a hydraulic cylinder, a pneumatic cylinder, a rack and pinion, a threaded rod, and a pulley system. 7. The trailer of claim 5, wherein the linkage comprises a plurality of rack and pinion assemblies connected by at least one gear, wherein a first extension allowed by a front rack and pinion is proportionally greater than a second extension allowed by a rear rack and pinion. 8. The trailer of claim 5, wherein the linkage comprises a manual operation mechanism. 9. The trailer of claim 5, further comprising a motor operatively coupled to the linkage. 10. The trailer of claim 1, wherein the frame further comprises a base member, a front member, and a rear member, and wherein the extension mechanism is configured to extend the front member and the rear member from the base member. 11. The trailer of claim 1, wherein the frame further comprises an inner channel and an outer channel configured to telescopically engage each other. 12. The trailer of claim 11, wherein the frame further comprises a bracket and at least one roller support disposed along the outer channel and configured to facilitate extending the front and the back. 13. An expandable trailer comprising: an axle assembly configured to mount a plurality of wheels; a frame having a front and a back; an extension mechanism configured to lengthen the frame from a compact position to one of a plurality of extended positions such that the extension mechanism extends the front of the frame a front distance from the axle assembly and extends the back of the frame a rear distance from the axle assembly, the extension mechanism maintaining a proportionally greater front distance than the rear distance; a tongue extending from the front of the frame, the tongue configured to attach the trailer to a vehicle; one or more supports secured to the frame to support a load; and a securing mechanism configured to selectively secure the frame in one of the compact position and one of the extended positions. 14. The trailer of claim 13, wherein the total frame length from the front to the back in one of the extended positions is substantially twice the total frame length in the compact position. 15. A system for an expandable trailer, the system comprising: an expandable trailer comprising, an axle assembly configured to mount a plurality of wheels; a frame having a front and a back; and an extension mechanism configured to lengthen the frame from a compact position to one of a plurality of extended positions, such that the extension mechanism extends the front of the frame a front distance from the axle assembly and extends the back of the frame a rear distance from the axle assembly, the extension mechanism maintaining a proportionally greater front distance than the rear distance; simultaneously and proportionally extend and retract the front and the back in response to operation of the extension mechanism; and one or more supports configured to engage the frame and support a load. 16. The system of claim 15, wherein each support comprises a connector configured to engage a corresponding connector of a second support to form a continuous platform. 17. The system of claim 15, wherein the one or more supports are proportionally sized to determine a total frame length between the front and the back, wherein the front distance is between about 50 to about 80 percent of the total frame length and the rear distance is between about 20 to about 50 percent of the total frame length. 18. The system of claim 15, further comprising an attachable side rail configured to engage the frame. 19. The system of claim 15, wherein the frame further comprises a storage compartment disposed on the frame for storing the one or more supports during transport. 20. The system of claim 15, wherein a first support is connected to the frame forming a front platform and a second support is connected to the frame forming a rear platform, wherein extending the frame creates an opening between the front platform and the rear platform for receiving one or more additional supports. 21. The system of claim 15, further comprising a front platform connected to the frame between the front and the axle assembly and a rear platform connected to the frame between the axle assembly and the back, the front platform and rear platform fixed in relation to the axle assembly such that activation of the extension mechanism extends the frame to create a first opening between the front and the front platform and a second opening between the back and the rear platform the first opening and second opening sized to receive and secure one or more additional supports.
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