IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0304610
(2011-11-25)
|
등록번호 |
US-8596671
(2013-12-03)
|
발명자
/ 주소 |
- Myrant, Paul R.
- Aumiller, Phillip C.
- Barfoot, Grady E.
- Fragoso, Jonathan C.
- Messaros, Michael C.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
10 |
초록
▼
A wheeled apparatus includes a base having sides, a front, rear, upper surface and lower surface, with a pair of leaves forming sides of the base and pivotally connected thereto and a pair of gates forming the front and rear and pivotally connected to the base and leaves. A handle subassembly and a
A wheeled apparatus includes a base having sides, a front, rear, upper surface and lower surface, with a pair of leaves forming sides of the base and pivotally connected thereto and a pair of gates forming the front and rear and pivotally connected to the base and leaves. A handle subassembly and a leg subassembly are connected to the base, with a wheel subassembly connected to the leg subassembly. The apparatus is configurable in a cart mode, a table mode with gates and leaves oriented in a flat horizontal plane, a dolly mode with leaves and gates connected to form a cart but with leg subassembly lowered closer to the ground relative to the cart mode, and a stowage mode, where the leaves and gates collapse into the base, the handle subassembly retracts into the base, and the leg subassembly collapses up into the lower surface of the base.
대표청구항
▼
1. A multi-functional, collapsible wheeled apparatus, comprising: a generally rectangular base, the base having a longer dimension representing sides thereof and a shorter dimension representing a front and rear thereof, the base having an upper surface and a lower surface,a pair of leaves, each lea
1. A multi-functional, collapsible wheeled apparatus, comprising: a generally rectangular base, the base having a longer dimension representing sides thereof and a shorter dimension representing a front and rear thereof, the base having an upper surface and a lower surface,a pair of leaves, each leaf pivotally connected along its lower end to a corresponding side of the base in opposite relation thereof by a plurality of horizontally arranged hinges located along the edge at the base upper surface,a pair of gates, each gate in facing relation to each other at the front and rear of the base, a side of a front gate pivotally connected to a front side of one of the leaves by a plurality of vertical hinges so that the front gate is configured to swing inward to its connected leaf and outward to be secured to the opposite leaf so as to form a front side when the apparatus is placed in a cart mode, a side of a rear gate pivotally connected to a rear side of the other leaf by a plurality of vertical hinges so that the rear gate is configured to swing inward to its connected leaf and outward to be secured to the opposite leaf so as to form a rear side when the apparatus is placed in the cart mode,a handle subassembly attached to the base,a leg subassembly attached to the base, anda single pair of wheels connected to the leg subassembly,wherein the apparatus is configurable in the cart mode, a table mode with the gates and leaves oriented in a flat horizontal plane, a dolly mode with the leaves and gates connected to form a cart but with the leg subassembly lowered closer to the ground relative to the cart mode, and a stowage mode where the leaves and gates collapse into the base, the handle subassembly retracts into the base and the leg subassembly collapses up into the lower surface of the base with the pair of wheels removed. 2. The apparatus of claim 1, wherein each leaf includes a recess enabling its corresponding gate to fold into the recess so that the outer facing surfaces of gate and leaf are flush, enabling a flat planar surface when pivoting the gate and leaf outward and downward for table mode or enabling the leaf and connected gate to be pivoted inward and downward on top of the base in preparation for stowage mode. 3. The apparatus of claim 1, wherein the base, leaves and gates have an isogrid structure of equilateral triangles to prevent toppling by wind and avoid collection of sand and debris. 4. The apparatus of claim 1, wherein each gate includes a gate latching pin which operates against spring pressure to lock into a corresponding pin recess in the base to secure the gate therein, in either an open position when configuring the apparatus for cart mode, or a closed position when configuring the apparatus for table or stowage modes. 5. The apparatus of claim 1, wherein the handle subassembly includes: a handle,a pair of latching pivot arms which permit pivotable movement of the handle inward and outward for stowage and removal, andwherein the pivot arms are compressed outward to rotate the handle inward and to insert the handle subassembly into and beneath the base upper surface for stowage. 6. The apparatus of claim 1, wherein the leg subassembly includes: a pair of guide rails, each attached along an inside side surface of the base, each guide rail including a plurality of leg detent positions which determine the height of the base for cart, table and dolly modes,a cross-leg support composed of a pair of wheel-connected legs crisscrossed with a non-wheel connected support stanchion, each upper end of the wheel-connected legs hard connected into a corresponding end of the guide rails, each upper end of the non-wheel connected stanchion slidable in a corresponding guide rail between selected detent positions, anda selector to adjust the apparatus in height by switching between the leg detent positions in the guide rails to shift between cart, table and dolly modes. 7. The apparatus of claim 6, wherein in table mode the selector is configured to adjust the height of the upper surface of the base to 27″ or 30″ above ground surface. 8. The apparatus of claim 6, wherein in dolly mode the selector is configured to adjust the height of the upper surface of the base to 8″ above ground surface. 9. The apparatus of claim 6, wherein in cart mode the selector is configured to adjust the height of the upper surface of the base to 17″ above ground surface. 10. The apparatus of claim 6, further comprising a wheel subassembly composed of a central axle interposed between respective lower ends of the wheel-connected legs, a pair of rotation cuffs attached to the bottom of the respective lower ends of the wheel-connected legs, each rotation cuff including a depressible button permitting rotation of a releasable wheel thereon from a position perpendicular to the axis of rotation of the apparatus to a position in line with the axis of rotation, each wheel including a release button permitting selective attachment to and removal from its corresponding rotation cuff. 11. The apparatus of claim 1, wherein in stowage mode with the pair of wheels removed, the apparatus has a thickness profile of 6.0″. 12. A multi-functional, collapsible wheeled apparatus, comprising: a generally rectangular base, the base having a longer dimension representing sides thereof and a shorter dimension representing a front and rear thereof, the base having an upper surface and a lower surface,a pair of leaves, each leaf pivotally connected along its lower end to a corresponding side of the base in opposite relation thereof,a pair of gates, each gate in facing relation to each other at the front and rear of the base, a side of a front gate pivotally connected to a front side of one of the leaves, a side of a rear gate pivotally connected to a rear side of the other leaf,a handle subassembly attached to the base, the handle subassembly composed of a handle, a pair of latching pivot arms which permit pivotable movement of the handle inward and outward for stowage and removal, wherein the pivot arms are compressed outward to rotate the handle inward and insert the handle subassembly into and beneath the base upper surface for stowage,a leg subassembly attached to the base, anda single pair of wheels connected to the leg subassembly,wherein the apparatus is configurable in the cart mode, a table mode with the gates and leaves oriented in a flat horizontal plane, a dolly mode with the leaves and gates connected to form a cart but with the leg subassembly lowered closer to the ground relative to the cart mode, and a stowage mode where the leaves and gates collapse into the base, the handle subassembly retracts into the base and the leg subassembly collapses up into the lower surface of the base with the pair of wheels removed. 13. The apparatus of claim 12, wherein the leg subassembly includes: a pair of guide rails, each attached along an inside side surface of the base, each guide rail including a plurality of leg detent positions which determine the height of the base for cart, table and dolly modes,a cross-leg support composed of a pair of wheel-connected legs crisscrossed with a non-wheel connected support stanchion, each upper end of the wheel-connected legs hard connected into a corresponding end of the guide rails, each upper end of the non-wheel connected stanchion slidable in a corresponding guide rail between selected detent positions, anda selector to adjust the apparatus in height by switching between the leg detent positions in the guide rails to shift between cart, table and dolly modes. 14. The apparatus of claim 13, wherein in table mode the selector is configured to adjust the height of the upper surface of the base to 27″ or 30″ above ground surface. 15. The apparatus of claim 13, wherein in dolly mode the selector is configured to adjust the height of the upper surface of the base to 8″ above ground surface. 16. The apparatus of claim 13, wherein in cart mode the selector is configured to adjust the height of the upper surface of the base to 17″ above ground surface. 17. The apparatus of claim 13, further comprising a wheel subassembly composed of a central axle interposed between respective lower ends of the wheel-connected legs, a pair of rotation cuffs attached to the bottom of the respective lower ends of the wheel-connected legs, each rotation cuff including a depressible button permitting rotation of a releasable wheel thereon from a position perpendicular to the axis of rotation of the apparatus to a position in-line with the axis of rotation, each wheel including a release button permitting selective attachment to and removal from its corresponding rotation cuff. 18. The apparatus of claim 12, wherein in stowage mode with the pair of wheels removed, the apparatus has a thickness profile of 6.0″. 19. A multi-functional, collapsible, wheeled apparatus, comprising: a generally rectangular base, the base having sides, front and rear thereof, an upper surface and a lower surface,a pair of leaves, each leaf pivotally connected along its lower end to a corresponding side of the base in opposite relation thereof,a pair of gates, each gate in facing relation to each other at the front and rear of the base, a side of a front gate pivotally connected to a front side of one of the leaves, a side of a rear gate pivotally connected to a rear side of the other leaf,a handle subassembly attached to the base,a dual cross-leg support connected to the lower surface of the base and expandable between vertically raised and lowered positions, anda wheel subassembly connected to the dual cross-leg support, the wheel subassembly composed of a central axle interposed between respective lower ends of one side of the dual cross-leg support, a pair of rotation cuffs attached to the bottom ends of the respective one side of the dual cross-leg support, each rotation cuff including a depressible button permitting rotation of a releasable wheel thereon from a position perpendicular to the axis of rotation of the apparatus to a position in-line with the axis of rotation, each wheel including a release button permitting selective attachment to and removal from its corresponding rotation cuff. 20. A multi-functional, collapsible, wheeled apparatus, comprising: a rectangular base having sides, a front, rear, upper surface and lower surface,a pair of leaves, each leaf pivotally connected along its lower end to a corresponding side of the base,a pair of gates, each gate forming a respective front and rear of the base, a side of a front gate pivotally connected to a front side of one of the leaves, a side of a rear gate pivotally connected to a rear side of the other leaf,a handle subassembly attached to the base,a leg subassembly connected to the base and expandable between vertically raised and lowered positions, anda wheel subassembly connected to the leg subassembly,wherein the apparatus is configurable in a cart mode, a table mode with the gates and leaves oriented in a flat horizontal plane, a dolly mode with the leaves and gates connected to form a cart but with the leg subassembly lowered closer to the ground relative to the cart mode, and a stowage mode where the leaves and gates collapse into the base, the handle subassembly retracts into the base and the leg subassembly collapses up into the lower surface of the base.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.