IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0949504
(2007-12-03)
|
등록번호 |
US-7654541
(2010-03-31)
|
발명자
/ 주소 |
- Stengel, Michael John
- Do, Trung Q.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
10 |
초록
▼
A cart for securing an transporting audiovisual equipment comprises two pairs of leg assemblies wherein each leg assembly is parallel and faces the other leg assembly. Each pair of legs further comprises individual legs secured to one another. Each leg has a bottom end, a top end, and an outer wall.
A cart for securing an transporting audiovisual equipment comprises two pairs of leg assemblies wherein each leg assembly is parallel and faces the other leg assembly. Each pair of legs further comprises individual legs secured to one another. Each leg has a bottom end, a top end, and an outer wall. In one embodiment, at least one of the legs has a hollow channel extending through at least on hollow leg. The hollow leg also comprises at least one aperture extending through the outer wall of the leg and communicating with the hollow channel. A top shelf is removably mounted at the top end of the legs and may also comprise at least one aperture near a corner of the shelf which communicates with the channel in the hollow leg. In an embodiment, the cart further comprises a utility shelf having a first and second portion, each portion pivotally connected to a connecting member at the bottom end of the legs and having a first open position and a second closed position to provide a flat lower storage space in the second closed position.
대표청구항
▼
What is claimed is: 1. A cart for securing and transporting audiovisual equipment comprising: at least two pairs of leg assemblies, each leg assembly parallel to and facing each other and each leg assembly comprising a pair of legs; each pair of legs comprising individual legs secured to one anothe
What is claimed is: 1. A cart for securing and transporting audiovisual equipment comprising: at least two pairs of leg assemblies, each leg assembly parallel to and facing each other and each leg assembly comprising a pair of legs; each pair of legs comprising individual legs secured to one another; each leg having a bottom end, a top end, an outer wall, and at least one of said legs having a hollow channel extending through at least one hollow leg; at least two connecting members extending between and removably engaging each pair of legs at the bottom end of each leg, the connecting members extending perpendicular to the plane of each pair of legs; the at least one hollow leg also having at least one aperture extending through the outer wall of the leg, the aperture communicating with the hollow channel; and a top shelf removably mounted on the legs at the top end of the legs, the shelf having an at least one aperture near a corner of the shelf, the aperture in the shelf communicating with the channel in the at least one hollow leg. 2. The cart of claim 1 wherein the at least two pairs of leg assemblies further comprise at least two pairs of wheels, each wheel further including a caster assembly, the caster assembly facilitating rotational movement of the wheels and distributing the load evenly between each caster, the caster assembly engaging the bottom end of each leg. 3. The cart of claim 2 wherein the caster assembly for each wheel includes an isolator compressed between two metal plates, one metal plate connected to the bottom of a respective leg and the second metal plate connected to an upper portion of the caster assembly. 4. The cart of claim 1 further including a bottom shelf mounted adjacent the bottom end of each leg, and a middle shelf mounted between the top shelf and the bottom shelf, at least one aperture extending through the middle shelf, the at least one aperture in the middle shelf communicating with the channel in the at least one hollow leg. 5. The cart of claim 4 wherein a pair of panels extend vertically downward beneath the middle shelf, the panels having a ledge, an inner surface, and an outer surface, the panels and the middle shelf each removably attached to a bracket connecting each pair of legs. 6. The cart of claim 4, wherein the at least one aperture in the middle shelf is located adjacent an additional aperture in the at least one hollow leg, the additional aperture communicating with the channel in the at least one hollow leg. 7. The cart of claim 1 wherein the top shelf further includes at least one hook accessory mounting structure on an outer edge of the top shelf. 8. The cart of claim 1 wherein a first support member at the bottom end of each leg has a generally concave tubular shape and a second support member at the top end of each leg has a generally flat shape. 9. The cart of claim 1 wherein the at least one aperture in the at least one hollow leg is adapted to receive a security cable securing audiovisual equipment to the cart. 10. A cart for securing and transporting audiovisual equipment comprising: at least two pairs of leg assemblies, each leg assembly parallel to and facing the other and each leg assembly comprising a pair of legs; each pair of legs comprising individual legs secured to one another; each leg having a bottom end, a top end, and an outer wall; at least two connecting members extending between and removably engaging each pair of legs at the bottom end of each leg, the connecting members extending perpendicular to the plane of each pair of legs; a top shelf removably mounted on the legs at the top end of the legs; a utility shelf comprising a first portion and second portion, the first and second portion each having a substantially vertical component and a substantially horizontal component, each portion of the utility shelf pivotally connected to a connecting member on opposing legs at the bottom end of the legs, each portion further including a first open position and a second closed position, the vertical component of each portion extending parallel to each adjacent leg in the closed position of the shelf, the horizontal components communicating with each other in the closed position and resting on a lower bracket to provide a flat storage space. 11. The cart of claim 10 wherein the at least two pairs of leg assemblies further comprise at least two pairs of wheels, each wheel further including a caster assembly to facilitate the rotational movement of the wheels and to evenly distribute the load between each caster, the caster assembly engaging the bottom end of each leg. 12. The cart of claim 10 further including a middle shelf mounted between the top shelf and the utility shelf. 13. The cart of claim 12 wherein a pair of panels extend vertically downward beneath the middle shelf, the panels having a ledge, an inner surface, and an outer surface, the panels and the middle shelf each removably attached to a bracket connecting each pair of legs. 14. The cart of claim 10 wherein the top shelf further includes at least one accessory mounting hook structure on an outer edge of the top shelf. 15. The cart of claim 10 wherein a first support member at the bottom end of each leg has a generally concave tubular shape and a second support member at the top end of each leg has a generally flat shape. 16. A cart for securing and transporting audiovisual equipment comprising: at least two pairs of leg assemblies, each leg assembly parallel to and facing each other and each leg assembly comprising a pair of legs; each pair of legs comprising individual legs secured to one another; each leg having a bottom end, a top end, an outer wall, at least one of said legs having a hollow channel extending through at least one hollow leg; at least two connecting members extending between and removably engaging each pair of legs at the bottom end of each leg, the connecting members extending perpendicular to the plane of each pair of legs; the at least one hollow leg also having at least one aperture extending through the outer wall of the leg, the aperture communicating with the hollow channel; a top shelf removably mounted on the legs at the top end of the legs, the top shelf having at least one aperture near a corner of the shelf, the aperture in the shelf communicating with the channel in the at least one hollow leg; a utility shelf comprising a first portion and second portion, the first and second portion each having a substantially vertical component and a substantially horizontal component, each portion of the utility shelf pivotally connected to a connecting member on opposing legs at the bottom end of the legs, each portion further including a first open position and a second closed position, the vertical component of each portion parallel extending parallel to each adjacent leg in the second closed position of the utility shelf, the horizontal components communicating with each other in the closed position and resting on a lower bracket to provide a flat storage space. 17. The cart of claim 16 further including a middle shelf mounted between the top shelf and the utility shelf, the middle shelf having at least one aperture extending through the shelf and communicating with the channel in the at least one hollow leg. 18. The cart of claim 17 wherein a pair of panels extend vertically downward beneath the middle shelf, the panels having a ledge, an inner surface, and an outer surface, the panels and the middle shelf each removably attached to a bracket connecting each pair of legs. 19. The cart of claim 16 wherein the top shelf further includes at least one accessory mounting hook structure on an outer edge of the top shelf. 20. The cart of claim 16 wherein a first support member at the bottom end of each leg has a generally concave tubular shape and a second support member at the top end of each leg has a generally flat shape.
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