Trifold Bicycle Frame
AssigneeMobility Holdings, Limited
InventorJoakim UIMONEN
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a folding bicycle comprising a handlepost joint and two joints in the mainbeam forward of the seat tube, wherein the pins of the hinges in the two mainbeam joints (i) are located on opposite sides of the mainbeam when viewed in a top view, and (ii) when the bicycle in folded, place the front wheel parallel to rear wheel and the wheel axles inline on the same lateral axis or on parallel lateral axes, wherein the wheels roll in parallel track.
Claims17
(canceled)
A folding bicycle frame equipped with front and rear wheels wherein the height of the folded package is no greater than a wheel external diameter.
(canceled)
(canceled)
A folding bicycle frame comprising at least two joints in the mainbeam, wherein the bicycle frame is equipped with front and rear wheels, each joint comprises a hinge, the hinge axes alternate on each side of the mainbeam, and the front and rear wheel sizes can be the same or different.
A folding bicycle frame comprising at least two folding joints in the mainbeam, wherein the bicycle frame is equipped with front and rear wheels and a folding fixing means that provides at least two user-selectable separations of the front and rear wheels when the frame is folded, and wherein the wheels roll in parallel track when the frame is folded.
A folding bicycle frame equipped with wheels and tires of 20″ wheel size and a drive system, wherein the folded frame with wheels attached, without disassembly of the frame, fits inside an airline legal suitcase.
A folding bicycle frame equipped with wheels and tires of 20″ wheel size and a drive system, wherein the folded frame with wheels attached, without disassembly of the frame, has a minimum folded volume not greater than airline legal volume.
A folding bicycle frame that has structural elements corresponding to the design variables recited in Table 2 and that produces a box area defined as:
- BoxArea
- 1
- =
- {
- WEX
- 2
- -
- Offset
- +
- (
- (
- FL
- 2
- +
- FO
- 2
- )
- +
- HTH
- +
- STH
- )
- ·
- cos
-
- (
- 90
-
- °
- -
- HTA
- )
- }
- ×
- {
- MS
- +
- RHH
- cos
-
- (
- RHA
- +
- tan
- -
- 1
-
- [
- FHH
- -
- RHH
- MS
- ]
- -
- 90
-
- °
- )
- +
- FCHD
- 2
- }
-
-
- wherein
- Offset
- =
- (
- Hub
-
-
- Offset
- x
- )
- ABS
-
- (
- Hub
-
-
- Offset
- x
- )
- ·
- (
- Hub
-
-
- Offset
- x
- )
- 2
- +
- (
- Hub
-
-
- Offset
- y
- )
- 2
-
-
- wherein
-
-
- Hub
-
-
- Offset
- x
- =
- RHD
- +
- RHH
- ·
- tan
-
- (
- 90
-
- °
- -
- RHA
- )
- -
- (
- FHH
- +
- MS
- ·
- sin
-
- (
- RHA
- +
- tan
- -
- 1
-
- [
- FHH
- -
- RHH
- MS
- ]
- -
- 90
-
- °
- )
- )
-
-
- and
-
-
- wherein
-
-
- Hub
-
-
- Offset
- y
- =
- RHH
- +
- MS
- ·
- cos
-
- (
- RHA
- +
- tan
- -
- 1
-
- [
- FHH
- -
- RHH
- MS
- ]
- -
- 90
-
- °
- )
- +
- FHD
- -
- FHH
- ·
- tan
-
- (
- 90
-
- °
- -
- FHA
- )
- -
- WB
- .
A folding bicycle frame that has structural elements corresponding to the design variables recited in Table 2 and that produces a box area defined as:
- BoxArea
- 2
- =
- {
- MS
- +
- RHH
- cos
-
- (
- RHA
- +
- tan
- -
- 1
-
- [
- FHH
- -
- RHH
- MS
- ]
- -
- 90
-
- °
- )
- +
- FCHD
- 2
- }
- ×
-
- [
- WEX
- +
- FCHD
- 2
- +
- CS
- cos
-
- (
- RHA
- -
- 90
-
- °
- )
- ]
- .
A folding bicycle frame comprising at least two joints in the mainbeam, each joint comprises a hinge, the hinge axes alternate on each side of the mainbeam, and the frame is equipped with front and rear wheels wherein the height of the folded package is no greater than a wheel external diameter.
A folding bicycle frame comprising at least two joints in the mainbeam, wherein the bicycle frame is equipped with front and rear wheels, the front and rear wheel sizes can be the same or different, and the height of the folded package is no greater than a wheel external diameter.
A folding bicycle frame comprising at least two folding joints in the mainbeam, wherein the bicycle frame is equipped with front and rear wheels and a folding fixing means that provides at least two user-selectable separations of the front and rear wheels when the frame is folded.
Dependencies are inferred from the claim text.