Foldable bicycle

Claim 2

A foldable bicycle, comprising: a bicycle frame, having a front portion, a rear portion, and a body frame connecting said front portion with said rear portion, wherein said body frame having a triangular structure comprises three supporting members connecting with each other; two driving wheels rotatably mounted to said front and rear portions of said bicycle frame; and a folding arrangement, which comprises: a folding joint provided at one of said supporting members to pivotally connect said front portion of said bicycle frame with said rear portion thereof; and a detachable connecting joint provided at another said supporting member to form said respective supporting member into two detachable engaging portions so as to disengage said triangular structure of said body frame, such that when said two detachable engaging portions are detached from each other, said front portion of said bicycle frame is adapted to pivotally fold towards said rear portion thereof via said folding joint to overlap said two driving wheels so as to fold up said foldable bicycle with a compact structure, wherein said folding joint comprises a pivot pin, a joint body having a pivotal cavity defined by a top cover and two side mounting walls of said joint body, and a fold guider pivotally mounted on said two side mounting walls within said pivotal cavity via said pivot pin, such that said fold guider is capable of pivotally folding to flip out of said pivotal cavity, wherein a supporting member pivotally connecting with said folding joint has a first portion and a second portion connecting with said fold guider and said joint body respectively so that said first portion and said second portion of said supporting member are capable of folding towards each other for folding said front portion towards said rear portion of said bicycle frame to form said compact structure, wherein said fold guider has a connecting base, a tubular axial holder, having a through axial slot, formed on a first side edge portion of said connecting base, and a lock holder formed on a second side edge portion of said connecting base, wherein said pivot pin is slidably inserted into said axial slot of said tubular axial holder for pivotally connecting said fold guider with said joint body at said two side mounting walls thereof.

Claim 3

A foldable bicycle, comprising: a bicycle frame, having a front portion, a rear portion, and a body frame connecting said front portion with said rear portion, wherein said body frame having a triangular structure comprises three supporting members connecting with each other; two driving wheels rotatably mounted to said front and rear portions of said bicycle frame; and a folding arrangement, which comprises: a folding joint provided at one of said supporting members to pivotally connect said front portion of said bicycle frame with said rear portion thereof; and a detachable connecting joint provided at another said supporting member to form said respective supporting member into two detachable engaging portions so as to disengage said triangular structure of said body frame, such that when said two detachable engaging portions are detached from each other, said front portion of said bicycle frame is adapted to pivotally fold towards said rear portion thereof via said folding joint to overlap said two driving wheels so as to fold up said foldable bicycle with a compact structure, wherein said detachable connecting joint comprises a first and a second tubular detachable connector each having a tubular hole defined by a sidewall of said respective detachable connector, and a securing member sandwiched between said first and said second detachable connector for detachably connecting said first and said second detachable connector, wherein said two engaging portions of said respective supporting member are connected with said first and said second tubular detachable connector respectively within said respective tubular hole for detachably connecting said two engaging portions of said respective supporting member, wherein said securing member, which is tubular in shape having a through tubular hole, has two longitudinal slots longitudinally extended from two ends of said securing member along a longitudinal direction, and at least two transverse slots transversely extended from said two longitudinal slots respectively to define two L-shaped locking slots at two end portions of said securing member, wherein said connecting joint further comprises two locking pins radially protruded from said first and said second detachable connector at positions corresponding to said two longitudinal slots respectively, such that when said first and said second detachable connector are adapted to be inserted into said two ends of said securing member while said the two locking pins are slidably inserted into said longitudinal slots to align with said transverse slots respectively, said first and said second detachable connector are adapted to rotate within said securing member so as to guide said locking pins slidably inserting into said transverse slots respectively for locking up said first detachable connector, said second detachable connector, and said securing member.

Claim 4

A foldable bicycle, comprising: a bicycle frame, having a front portion, a rear portion, and a body frame connecting said front portion with said rear portion, wherein said body frame having a triangular structure comprises three supporting members connecting with each other; two driving wheels rotatably mounted to said front and rear portions of said bicycle frame; and a folding arrangement, which comprises: a folding joint provided at one of said supporting members to pivotally connect said front portion of said bicycle frame with said rear portion thereof; and a detachable connecting joint provided at another said supporting member to form said respective supporting member into two detachable engaging portions so as to disengage said triangular structure of said body frame, such that when said two detachable engaging portions are detached from each other, said front portion of said bicycle frame is adapted to pivotally fold towards said rear portion thereof via said folding joint to overlap said two driving wheels so as to fold up said foldable bicycle with a compact structure, wherein said detachable connecting joint comprises a first and a second tubular detachable connector each having a tubular hole defined by a sidewall of said respective detachable connector, and a securing member sandwiched between said first and said second detachable connector for detachably connecting said first and said second detachable connector, wherein said two engaging portions of said respective supporting member are connected with said first and said second tubular detachable connector respectively within said respective tubular hole for detachably connecting said two engaging portions of said respective supporting member, wherein said securing member, which is tubular in shape having a through tubular hole, has two longitudinal slots longitudinally extended from two ends of said securing member along a longitudinal direction, and at least two transverse slots transversely extended from said two longitudinal slots respectively to define two L-shaped locking slots at two end portions of said securing member, wherein said connecting joint further comprises two locking pins radially protruded from said first and said second detachable connector at positions corresponding to said two longitudinal slots respectively, such that when said first and said second detachable connector are adapted to be inserted into said two ends of said securing member while said the two locking pins are slidably inserted into said longitudinal slots to align with said transverse slots respectively, said first and said second detachable connector are adapted to rotate within said securing member so as to guide said locking pins slidably inserting into said transverse slots respectively for locking up said first detachable connector, said second detachable connector, and said securing member.

Claim 5

A foldable bicycle, comprising: a bicycle frame, having a front portion, a rear portion, and a body frame connecting said front portion with said rear portion, wherein said body frame having a triangular structure comprises three supporting members connecting with each other; two driving wheels rotatably mounted to said front and rear portions of said bicycle frame; and a folding arrangement, which comprises: a folding joint provided at one of said supporting members to pivotally connect said front portion of said bicycle frame with said rear portion thereof; and a detachable connecting joint provided at another said supporting member to form said respective supporting member into two detachable engaging portions so as to disengage said triangular structure of said body frame, such that when said two detachable engaging portions are detached from each other, said front portion of said bicycle frame is adapted to pivotally fold towards said rear portion thereof via said folding joint to overlap said two driving wheels so as to fold up said foldable bicycle with a compact structure, wherein said folding joint comprises a pivot pin, a joint body having a pivotal cavity defined by a top cover and two side mounting walls of said joint body, and a fold guider pivotally mounted on said two side mounting walls within said pivotal cavity via said pivot pin, such that said fold guider is capable of pivotally folding to flip out of said pivotal cavity, wherein a supporting member pivotally connecting with said folding joint has a first portion and a second portion connecting with said fold guider and said joint body respectively so that said first portion and said second portion of said supporting member are capable of folding towards each other for folding said front portion towards said rear portion of said bicycle frame to form said compact structure, wherein said fold guider has a connecting base, a tubular axial holder, having a through axial slot, formed on a first side edge portion of said connecting base, and a lock holder formed on a second side edge portion of said connecting base, wherein said pivot pin is slidably inserted into said axial slot of said tubular axial holder for pivotally connecting said fold guider with said joint body at said two side mounting walls thereof, wherein said folding joint further comprises a folding lock provided on said joint body and adapted to block said pivotal movement of said fold guider with respect to said joint body so as to lock up a folding motion of said bicycle frame, wherein said folding lock comprises a lock platform formed on said top cover of said joint body, a longitudinal lock member connecting with said lock holder of said fold guider, and a transverse lock member mounted on said lock platform and adapted to move between a locked position and an unlocked position, wherein at said locked position, said transverse lock member is extended to couple with said longitudinal lock member and interlock with said lock platform for blocking a pivotal movement of said fold guider, wherein at said unlock position, said transverse lock member is lifted to disengage with said longitudinal lock member so as to allow pivotal movement of said fold guider for allowing folding of said bicycle frame, wherein said detachable connecting joint comprises a first and a second tubular detachable connector each having a tubular hole defined by a sidewall of said respective detachable connector, and a securing member sandwiched between said first and said second detachable connector for detachably connecting said first and said second detachable connector, wherein said two engaging portions of said respective supporting member are connected with said first and said second tubular detachable connector respectively within said respective tubular hole for detachably connecting said two engaging portions of said respective supporting member, wherein said securing member, which is tubular in shape having a through tubular hole, has two longitudinal slots longitudinally extended from two ends of said securing member along a longitudinal direction, and at least two transverse slots transversely extended from said two longitudinal slots respectively to define two L-shaped locking slots at two end portions of said securing member, wherein said connecting joint further comprises two locking pins radially protruded from said first and said second detachable connector at positions corresponding to said two longitudinal slots respectively, such that when said first and said second detachable connector are adapted to be inserted into said two ends of said securing member while said the two locking pins are slidably inserted into said longitudinal slots to align with said transverse slots respectively, said first and said second detachable connector are adapted to rotate within said securing member so as to guide said locking pins slidably inserting into said transverse slots respectively for locking up said first detachable connector, said second detachable connector, and said securing member.

Claim 6

A foldable bicycle, comprising: a bicycle frame, having a front portion, a rear portion, and a body frame connecting said front portion with said rear portion, wherein said body frame having a triangular structure comprises three supporting members connecting with each other; two driving wheels rotatably mounted to said front and rear portions of said bicycle frame; and a folding arrangement, which comprises: a folding joint provided at one of said supporting members to pivotally connect said front portion of said bicycle frame with said rear portion thereof; and a detachable connecting joint provided at another said supporting member to form said respective supporting member into two detachable engaging portions so as to disengage said triangular structure of said body frame, such that when said two detachable engaging portions are detached from each other, said front portion of said bicycle frame is adapted to pivotally fold towards said rear portion thereof via said folding joint to overlap said two driving wheels so as to fold up said foldable bicycle with a compact structure, wherein said folding joint comprises a pivot pin, a joint body having a pivotal cavity defined by a top cover and two side mounting walls of said joint body, and a fold guider pivotally mounted on said two side mounting walls within said pivotal cavity via said pivot pin, such that said fold guider is capable of pivotally folding to flip out of said pivotal cavity, wherein a supporting member pivotally connecting with said folding joint has a first portion and a second portion connecting with said fold guider and said joint body respectively so that said first portion and said second portion of said supporting member are capable of folding towards each other for folding said front portion towards said rear portion of said bicycle frame to form said compact structure, wherein said fold guider has a connecting base, a tubular axial holder, having a through axial slot, formed on a first side edge portion of said connecting base, and a lock holder formed on a second side edge portion of said connecting base, wherein said pivot pin is slidably inserted into said axial slot of said tubular axial holder for pivotally connecting said fold guider with said joint body at said two side mounting walls thereof, wherein said folding joint further comprises a folding lock provided on said joint body and adapted to block said pivotal movement of said fold guider with respect to said joint body so as to lock up a folding motion of said bicycle frame, wherein said folding lock comprises a lock platform formed on said top cover of said joint body, a longitudinal lock member connecting with said lock holder of said fold guider, and a transverse lock member mounted on said lock platform and adapted to move between a locked position and an unlocked position, wherein at said locked position, said transverse lock member is extended to couple with said longitudinal lock member and interlock with said lock platform for blocking a pivotal movement of said fold guider, wherein at said unlock position, said transverse lock member is lifted to disengage with said longitudinal lock member so as to allow pivotal movement of said fold guider for allowing folding of said bicycle frame, wherein said detachable connecting joint comprises a first and a second tubular detachable connector each having a tubular hole defined by a sidewall of said respective detachable connector, and a securing member sandwiched between said first and said second detachable connector for detachably connecting said first and said second detachable connector, wherein said two engaging portions of said respective supporting member are connected with said first and said second tubular detachable connector respectively within said respective tubular hole for detachably connecting said two engaging portions of said respective supporting member, wherein said securing member, which is tubular in shape having a through tubular hole, has two longitudinal slots longitudinally extended from two ends of said securing member along a longitudinal direction, and at least two transverse slots transversely extended from said two longitudinal slots respectively to define two L-shaped locking slots at two end portions of said securing member, wherein said connecting joint further comprises two locking pins radially protruded from said first and said second detachable connector at positions corresponding to said two longitudinal slots respectively, such that when said first and said second detachable connector are adapted to be inserted into said two ends of said securing member while said the two locking pins are slidably inserted into said longitudinal slots to align with said transverse slots respectively, said first and said second detachable connector are adapted to rotate within said securing member so as to guide said locking pins slidably inserting into said transverse slots respectively for locking up said first detachable connector, said second detachable connector, and said securing member.

Claim 7

The foldable bicycle, as recited in claim 3 , wherein a first of said supporting member supporting said connecting joint is longitudinally extended between said front portion and said rear portion, a second of said supporting members supporting said folding joint is inclinedly and rearwardly extended from said first supporting member at said front portion, and a third of said supporting members is transversely extended to connect said first and said second supporting members at said rear portion to define said foldable triangular structure of said body frame.

Claim 8

The foldable bicycle, as recited in claim 3 , wherein a second of said supporting member supporting said connecting joint is longitudinally extended between said front portion and said rear portion, a first of said supporting members supporting said folding joint is inclinedly and rearwardly extended from said second supporting member at said front portion, and a third of said supporting members is transversely extended to connect said first and said second supporting members at said rear portion to define said foldable triangular structure of said body frame.

Claim 9

The foldable bicycle, as recited in claim 3 , wherein a third of said supporting member supporting said connecting joint is longitudinally extended between said front portion and said rear portion, a second of said supporting members supporting said folding joint is inclinedly and rearwardly extended from said third supporting member at said front portion, and a first of said supporting members is transversely extended to connect said first and said second supporting members at said rear portion to define said foldable triangular structure of said body frame.