초록 ▼

A unique foldable table comprises a collapse-preventing tabletop assembly, a plurality of extendable-leg assemblies releasably attached to the tabletop assembly, and a plurality of scissoring-arm assemblies attached to the extendable-leg assemblies, respectively. The collapse-preventing tabletop ass

A unique foldable table comprises a collapse-preventing tabletop assembly, a plurality of extendable-leg assemblies releasably attached to the tabletop assembly, and a plurality of scissoring-arm assemblies attached to the extendable-leg assemblies, respectively. The collapse-preventing tabletop assembly has an automatic collapse-preventing system of clamps for automatically cross-interlocking the tabletop and the extendable-leg assemblies to prevent the unique foldable table from folding inwards and collapsing. The extendable-leg assemblies have: an automatic button-latching and button-releasing system of spring-loaded latches for automatically latching and automatically releasing the release buttons to simplify the cumbersome, two-handed table operation into an easy, one-handed table operation to eliminate the risk of personal injury; and an automatic leg-centering system of leg-centering clamps for automatically centering and clamping the extendable-leg assemblies to lock them in place.

대표청구항 ▼

1. A foldable table comprising: a collapse-preventing top, said collapse-preventing top comprising a top frame, a sheet of material, and a plurality of collapse-preventing clamps, said sheet of material attached to said top frame, said top frame having a plurality of corners each of which has an inn

1. A foldable table comprising: a collapse-preventing top, said collapse-preventing top comprising a top frame, a sheet of material, and a plurality of collapse-preventing clamps, said sheet of material attached to said top frame, said top frame having a plurality of corners each of which has an inner surface, said collapse-preventing clamps attached to the inner surfaces of the four corners of said top frame by top-clamp-attaching means, respectively;a plurality of extendable-leg assemblies, each of said extendable-leg assemblies comprising a top-locking post, a leg cap, a leg, a locking-peg leaf spring, a locking peg, a locking sleeve, a leg-centering clamp, a spring-loaded extendable-leg lock, an extendable leg, and an extendable-leg foot, said top-locking post integrated into said leg cap, said top-locking post for one of said collapse-preventing clamps of said collapse-preventing top to clamp on to interlock said extendable-leg assemblies, said leg cap attached to an end of said leg, said leg having a locking-peg opening, said locking-peg leaf spring integrated into said locking peg, said locking-peg leaf spring and said locking peg inserted into said leg such that the spring force of said locking-peg leaf spring pushes said locking peg through said locking-peg opening, said locking sleeve slid on said leg such that said locking sleeve is slidably attached to said leg, said locking sleeve having a recess, said recess for said locking peg to be pressed into to secure said locking sleeve when said recess slides over said locking peg, said leg-centering clamp having a plurality of predetermined clamping jaws, said leg-centering clamp having a ring-like edge and an invisible longitudinal central axis, said clamping jaws molded to and along said ring-like edge of said leg-centering clamp such that said clamping jaws surround and lean inward toward said invisible central axis of said leg-centering clamp at a predetermined angle creating a force for said clamping jaws to center said extendable leg, said leg-centering clamp attached to another end of said leg by centering-clamp-attaching means, said spring-loaded extendable-leg lock integrated into said leg-centering clamp, said extendable leg inserted into said leg-centering clamp and said leg, said extendable leg capable of extending and retracting to adjust the height of said foldable table, said extendable leg having a plurality of extendable-leg-locking openings, each of said extendable-leg-locking openings disposed at a predetermined location on said extendable leg, each of said extendable-leg-locking openings for said extendable-leg lock to be pressed into to lock said extendable leg at a predetermined location inside said leg, said extendable-leg foot attached to an end of said extendable leg by foot-attaching means, said extendable-leg foot for stabilizing said foldable table when set on a surface; anda plurality of scissoring-arm assemblies, each of said scissoring-arm assemblies comprising a plurality of scissoring arms, a plurality of screws, and a plurality of nuts, said scissoring arms pivotally connected to one another in a scissoring configuration and to said leg caps and said locking sleeves of said extendable-leg assemblies by said screws and said nuts, respectively, such that said scissoring-arm assemblies can contract and expand to allow said foldable table to fold and unfold, respectively, said locking sleeve having a spring-loaded button and a spring-loaded latch, said spring-loaded button having a button groove, said leg further having a latch-activating opening and a latch-deactivating edge, said spring-loaded latch pivotably attached to said locking sleeve, said spring-loaded latch for rotating into said button groove and into said latch-activating opening to latch on said spring-loaded button when said spring-loaded button is pressed, said latch-deactivating edge of said latch-activating opening for rotating said spring-loaded latch out of said button groove and out of said latch-activating opening to release said spring-loaded button when said foldable table is folded,whereby, provided is said foldable table, which: automatically latches on said spring-loaded buttons when said spring-loaded buttons is pressed,automatically releases said spring-loaded buttons when said foldable table is folded,automatically centers said extendable leg when said extendable leg is locked, andautomatically interlocks said extendable-leg assemblies when said collapse-preventing top is installed thereon. 2. The foldable table of claim 1, further, comprising a plurality of screws, said screws for screwing into said top-locking posts to strengthen said top-locking posts, respectively. 3. The foldable table of claim 2, wherein, said sheet of material having a plurality of openings and two opposite surfaces, each of said openings extending from one of said opposite surfaces to another one of said opposite surfaces. 4. The foldable table of claim 1, wherein, having four extendable-leg assemblies. 5. The foldable table of claim 1, wherein, having more than four extendable-leg assemblies. 6. The foldable table of claim 1, wherein, said collapse-preventing top being rectangular. 7. The foldable table of claim 1, wherein, said collapse-preventing top being square. 8. The foldable table of claim 1, wherein, said collapse-preventing top being round. 9. The foldable table of claim 1, wherein, each of said spring-loaded latches being a wire. 10. The foldable table of claim 1, wherein, each of said spring-loaded latches made of metallic material. 11. The foldable table of claim 1, wherein, each of said spring-loaded latches made of plasticized material. 12. A foldable table comprising: an interlocking top, said interlocking top comprising a frame, a sheet of material, and a plurality of interlocking clamps, said sheet of material attached to said frame by sheet-attaching means, said frame having four corners each of which has an inner surface, said interlocking clamps attached to the inner surfaces of the four corners of said frame by interlocking-clamp-attaching means, respectively;a plurality of extendable assemblies, each of said extendable assemblies comprising a locking post, a cap, a supporting member, a spring, a peg, a sleeve, a centering clamp, a spring-loaded locking means, an extendable supporting member, and a stabilizing means, said locking post integrated into said cap, said locking post for one of said interlocking clamps of said interlocking top to clamp on to interlock said extendable assemblies, said cap attached to an end of said supporting member, said supporting member having a locking opening, said spring integrated into said peg, said spring and said peg inserted into said supporting member such that the spring force of said spring pushes said peg through said locking opening, said sleeve slid on said supporting member such that said sleeve is slidably attached to said supporting member, said sleeve having a recess, said recess for said peg to be pressed into to secure said sleeve when said recess slides over said peg, said centering clamp having a plurality of predetermined clamping jaws, said leg-centering clamp having a ring-like edge and an invisible longitudinal central axis said clamping jaws molded to and along said ring-like edge of said leg-centering clamp such that said clamping jaws surround and lean inward toward said invisible central axis of said leg-centering clamp at a predetermined angle creating a force for said clamping jaws to center said extendable leg, said centering clamp attached to another end of said supporting member by centering-clamp-attaching means, said spring-loaded locking means integrated into said centering clamp, said extendable supporting member inserted into said centering clamp and said supporting member, said extendable supporting member capable of extending and retracting to adjust the height of said foldable table, said extendable supporting member having a plurality of securing openings, each of said securing openings disposed at a predetermined location on said extendable supporting member, each of said securing openings for said extendable-leg lock to be pressed into to lock said extendable supporting member at a predetermined location inside said supporting member, said stabilizing means attached to an end of said extendable supporting member by stabilizer attaching means, said stabilizing means for stabilizing said foldable table when set on a surface; anda plurality of foldable assemblies, each of said foldable assemblies comprising a plurality of foldable members and foldable attaching means, said foldable members pivotally connected to one another in a scissoring configuration and to said caps and said sleeves of said extendable assemblies by said foldable attaching means, respectively, such that said foldable assemblies can contract and expand to allow said foldable table to fold and unfold, respectively, said sleeve having a spring-loaded button and a spring-loaded latching means, said spring-loaded button having a groove, said supporting member further having a latching opening and an unlatching edge, said spring-loaded latching means pivotably attached to said sleeve, said spring-loaded latching means for rotating into said groove of said spring-loaded button and into said latching opening to latch on said spring-loaded button when said spring-loaded button is pressed, said unlatching edge of said latching opening for rotating said spring-loaded latching means out of said groove of said spring-loaded button and out of said latching opening to release said spring-loaded button when said foldable table is folded,whereby, provided is said foldable table, which: automatically latches on said spring-loaded buttons when said spring-loaded buttons are pressed,automatically releases said spring-loaded buttons when said foldable table is folded,automatically centers said extendable supporting members when said extendable supporting members are locked, andautomatically interlocks said extendable assemblies when said interlocking top is installed thereon. 13. The foldable table of claim 12, further, comprising a plurality of screws, said screws for screwing into said top-locking posts to strengthen said top-locking posts, respectively. 14. The foldable table of claim 13, wherein, said sheet of material having a plurality of openings and two opposite surfaces, each of said openings extending from one of said opposite surfaces to another one of said opposite surfaces. 15. The foldable table of claim 12, wherein, each of said spring-loaded latches being a molded or stamped latch. 16. The foldable table of claim 12, wherein, each of said spring-loaded latches made of metallic material. 17. The foldable table of claim 12, wherein, each of said spring-loaded latches made of plasticized material. 18. The foldable table of claim 12, wherein, having four extendable-leg assemblies. 19. The foldable table of claim 12, wherein, having more than four extendable-leg assemblies. 20. A foldable table comprising an interlocking top, a plurality of extendable assemblies, and a plurality of foldable assemblies, said interlocking top comprising a frame, a sheet of material, and a plurality of interlocking clamps, said sheet of material attached to said frame by sheet-attaching means, said frame having four corners each of which has an inner surface, said interlocking clamps attached to the inner surfaces of the four corners of said frame by interlocking-clamp-attaching means, respectively, each of said extendable assemblies comprising a locking post, a cap, a supporting member, a spring, a peg, a sleeve, a centering clamp, a spring-loaded locking means, an extendable supporting member, and a stabilizing means, said locking post integrated into said cap, said locking post for one of said interlocking clamps of said interlocking top to clamp on to interlock said extendable assemblies, said cap attached to an end of said supporting member, said supporting member having a locking opening, said spring integrated into said peg, said spring and said peg inserted into said supporting member such that the spring force of said spring pushes said peg through said locking opening, said sleeve slid on said supporting member such that said sleeve is slidably attached to said supporting member, said sleeve having a recess, said recess for said peg to be pressed into to secure said sleeve when said recess slides over said peg, said centering clamp having a plurality of predetermined clamping jaws, said leg-centering clamp having a ring-like edge and an invisible longitudinal central axis, said clamping jaws molded to and along said ring-like edge of said leg-centering clamp such that said clamping jaws surround and lean inward toward said invisible central axis of said leg-centering clamp at a predetermined angle creating a force for said clamping jaws to center said extendable leg, said centering clamp attached to another end of said supporting member by centering-clamp-attaching means, said spring-loaded locking means integrated into said centering clamp, said extendable supporting member inserted into said centering clamp and said supporting member, said extendable supporting member capable of extending and retracting to adjust the height of said foldable table, said extendable supporting member having a plurality of securing openings, each of said securing openings disposed at a predetermined location on said extendable supporting member, each of said securing openings for said extendable-leg lock to be pressed into to lock said extendable supporting member at a predetermined location inside said supporting member, said stabilizing means attached to an end of said extendable supporting member by stabilizer attaching means, said stabilizing means for stabilizing said foldable table when set on a surface, each of said foldable assemblies comprising a plurality of foldable members and foldable attaching means, said foldable members pivotally connected to one another in a scissoring configuration and to said caps and said sleeves of said extendable assemblies by said foldable attaching means, respectively, such that said foldable assemblies can contract and expand to allow said foldable table to fold and unfold, respectively, said sleeve having a spring-loaded button and a spring-loaded latching means, said spring-loaded button having a groove, said supporting member further having a latching opening and a unlatching edge, said spring-loaded latching means pivotably attached to said sleeve, said spring-loaded latching means for rotating into said groove of said spring-loaded button and into said latching opening to latch on said spring-loaded button when said spring-loaded button is pressed, said unlatching edge of said latching opening for rotating said spring-loaded latching means out of said groove of said spring-loaded button and out of said latching opening to release said spring-loaded button when said foldable table is folded, whereby, provided is said foldable table, which automatically latches on said spring-loaded buttons when said spring-loaded buttons are pressed, automatically releases said spring-loaded buttons when said foldable table is folded, automatically centers said extendable supporting members when said extendable supporting members are locked, and automatically interlocks said extendable assemblies when said interlocking top is installed thereon.