IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0317374
(2002-12-11)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
10 인용 특허 :
5 |
초록
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A utility cart with the improvements including an adjustable height handle, a foot activated brake, an adjustable cart partition, and easy turning swivel front wheels to assist in guiding the cart. An inverted U-shaped telescoping handle, which curves outwardly from the backside of the cart is easil
A utility cart with the improvements including an adjustable height handle, a foot activated brake, an adjustable cart partition, and easy turning swivel front wheels to assist in guiding the cart. An inverted U-shaped telescoping handle, which curves outwardly from the backside of the cart is easily adjustable for desired height. A foot-activated brake mechanism is used to apply pressure to rather large, rubber tread wheels to prevent the cart from rolling when stopped on an inclined surface. An additional foot-activated lever is used to release the brake. Three embodiments of the utility cart are disclosed, these being (1) a rigid cart for general use, (2) a collapsible cart for storing, and (3) a low profile portable cart for fitting into the trunk of a car.
대표청구항
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1. A utility cart for shopping, laundering, and transporting goods, comprising:a metal frame having a rectangular shaped upper frame rail, a rectangular shaped lower frame rail, said upper and lower frame rails being attached at the four corners by means of corner support posts, the four sides of sa
1. A utility cart for shopping, laundering, and transporting goods, comprising:a metal frame having a rectangular shaped upper frame rail, a rectangular shaped lower frame rail, said upper and lower frame rails being attached at the four corners by means of corner support posts, the four sides of said frame being closed by metal mesh panels, the bottom of said frame being further closed by a metal mesh panel, and the top of said frame being open;an adjustable inverted U-shaped handle attached along the back top portion of said frame, said handle supported by telescoping support posts having inner and outer concentric sliding tubes, said tubes extending upward from top of said frame, said inner tubes being curved outward from said cart, said handle being adjustable in height and secured in place by locking means;a rear axel attached horizontally to the back portion of the lower back frame rail, the ends of said axel extending outwardly from each side of said frame;fixed position rear wheels mounted on each end of said axel, said rear wheels having outer rubber treads for traction;rotatable front swivel wheels attached by mounting means to the front bottom corners of said frame, said front wheels having outer rubber treads for traction, said front swivel wheels providing means for turning said cart, thereby making said cart easier to guide;a brake mechanism further comprising brake pads attached by mounting means to each end of a horizontal braking bar, said braking bar being rotatively mounted and spring loaded on to said axel, said brake pads being made of a hard material having good griping properties, said braking bar extending across full width of said utility cart behind and in close proximity to said rear wheels, said brake pads being aligned with said rear wheels, said braking bar further having a horizontal footpad attached in area between said rear wheels for applying said brakes to secure said cart by applying frictional pressure to said rear wheels, said brakes being locked in place by ratchet means; anda brake release mechanism attached at one end of said axel near the rear wheel for releasing said brake mechanism, thereby freeing said rear wheels to rotate. 2. The utility cart of claim 1, further comprising an adjustable compartment divider, said divider having a metal frame and mesh surface, said divider capable of being dropped into said cart and positioned to partition said cart, said divider attached by means of hooks at the top corners of said divider and supported along the upper frame side rails of said cart. 3. The utility cart of claim 1, wherein said rear wheels have larger diameter than said front wheels, thereby providing stability to said cart. 4. The utility cart of claim 1, wherein said front swivel wheels have means for turning said cart, thereby making said cart easier to guide. 5. The utility cart of claim 1, wherein the bottom of said frame is closed by means of a solid panel. 6. The utility cart of claim 1, wherein said side panels of said cart are solid for use with granular materials such as used in lawn and garden applications. 7. The utility cart of claim 1, wherein the shape of said cart is square. 8. The utility cart of claim 1, wherein the height profile of said cart is made low, thereby providing a low-profile portable cart that can be stored in the trunk of a car, when said handle is lowered. 9. The utility cart of claim 1, wherein said brake release mechanism further comprises a foot activated lever extending from said brake mechanism for releasing said ratchet means. 10. The utility cart of claim 9, wherein said spring loaded brake bar returns to rest position when released, thereby releasing said brakes. 11. A collapsible utility cart, comprising:a metal frame having a rectangular shaped upper frame rail, a rectangular shaped lower frame rail, said upper and lower frame rails being attached at the four corners by means of corner support posts, the four sides of said frame being clos ed by metal mesh panels, the bottom of said frame being further closed by a metal mesh panel, and the top of said frame being open, said frame further having a pivotal arm means for folding up said cart for storing,an adjustable inverted U-shaped handle attached along the back top portion of said frame, said handle supported by telescoping support posts having inner and outer concentric sliding tubes, said tubes extending upward from top of said frame, said inner tubes being curved outward from said cart, said handle being adjustable in height and secured in place by locking means;a rear axel attached horizontally to the back portion of the lower back frame rail, the ends of said axel extending outwardly from each side of said frame;fixed position rear wheels mounted on each end of said axel, said rear wheels having outer rubber treads for traction;rotatable front swivel wheels attached by mounting means to the front bottom corners of said frame, said front wheels having outer rubber treads for traction, said front swivel wheels providing means for turning said cart, thereby making said cart easier to guide;a brake mechanism further comprising brake pads attached by mounting means to each end of a horizontal braking bar, said braking bar being rotatively mounted and spring loaded on to said axel, said brake pads being made of a hard material having good griping properties, said braking bar extending across full width of said utility cart behind and in close proximity to said rear wheels, said brake pads being aligned with said rear wheels, said braking bar further having a horizontal footpad attached in area between said rear wheels for applying said brakes to secure said cart by applying frictional pressure to said rear wheels, said brakes being locked in place by ratchet means; anda brake release mechanism attached at one end of said axel near the rear wheel for releasing said brake mechanism, thereby freeing said rear wheels. 12. The collapsible utility cart of claim 11, further comprising an adjustable compartment divider, said divider having a metal frame and mesh surface, said divider capable of being dropped into said cart and positioned to partition said cart, said divider attached by means of hooks at the top corners of said divider and supported along the upper frame side rails of said cart. 13. The collapsible utility cart of claim 11, wherein said rear wheels have larger diameter than said front wheels, thereby providing stability to said cart. 14. The collapsible utility cart of claim 11, wherein the bottom of said frame is closed by means of a solid panel. 15. The collapsible utility cart of claim 11, wherein said side panels of said cart are solid for use with granular materials such as used in lawn and garden applications. 16. The collapsible utility cart of claim 11, wherein the shape of said cart is square. 17. The collapsible utility cart of claim 1, wherein the height profile of said cart is made low, thereby providing a low-profile portable cart that can be stored in the trunk of a car, when said handle is lowered. 18. The utility cart of claim 11, wherein said brake release mechanism further comprises a foot activated lever extending from said brake mechanism for releasing said ratchet means. 19. The utility cart of claim 18, wherein said spring loaded brake bar returns to rest position when released, thereby releasing said brakes. 20. A personal utility cart, comprising:a metal frame having a rectangular shaped upper frame rail, a rectangular shaped lower frame rail, said upper and lower frame rails being attached at the four corners by means of corner support posts, the four sides of said frame being closed by metal mesh panels, the bottom of said frame being further closed by a metal mesh panel, and the top of said frame being open;an adjustable compartment divider, further comprising an adjustable compartment divider, said divider having a metal frame and mesh surface, said divider capable of being dr opped into said cart and positioned to partition said cart, said divider attached by means of hooks at the top corners of said divider and supported along the upper frame side rails of said cart;an adjustable inverted U-shaped handle attached along the back top portion of said frame, said handle supported by telescoping support posts having inner and outer concentric sliding tubes, said tubes extending upward from top of said frame, said inner tubes being curved outward from said cart, said handle being adjustable in height and secured in place by locking means;rotatable front swivel wheels attached by mounting means to the front bottom corners of said frame, said front wheels having outer rubber treads for traction, said front swivel wheels providing means for turning said cart, thereby making said cart easier to guide;a rear axel attached horizontally to the back portion of the lower back frame rail, the ends of said axel extending outwardly from each side of said frame;fixed position rear wheels mounted on each end of said axel, said rear wheels having outer rubber treads for traction, said rear wheels having a larger diameter than said front wheels, thereby providing stability to the cart;a brake mechanism further comprising brake pads attached by mounting means to each end of a horizontal braking bar, said braking bar being rotatively mounted and spring loaded on to said axel, said brake pads being made of a hard material having good griping properties, said braking bar extending across full width of said utility cart behind and in close proximity to said rear wheels, said brake pads being aligned with said rear wheels, said braking bar further having a horizontal footpad attached in area between said rear wheels for applying said brakes to secure said cart by applying frictional pressure to said rear wheels, said brakes being locked in place by ratchet means; anda brake release mechanism attached at one end of said axel near the rear wheel for releasing said brake mechanism, thereby freeing said rear wheels to rotate.
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