US5836602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible bicycle
Assignee: Individual
•
Filing: 1997-08-12
•
Granted: 1998-11-17
•
Expires: 2017-08-12
Abstract
Abstract A collapsible bicycle includes a body frame including a front wheel rotatably mounted on a first end portion thereof, and a seat tube fixedly mounted on a second end portion thereof. A rear frame includes an upright tube disposed beneath the seat tube, a pair of seat stays each extending from the upright tube, a rear wheel rotatably mounted between the pair of seat stays, and a pair of supporting brackets each having a first end portion fixedly mounted on a corresponding one of the pair of seat stays and a second end portion located at a position flush with the rear wheel. A pivot mechanism is pivotally connected between the seat tube and the upright tube such that the upright tube can be pivoted relative to the seat tube, thereby pivoting the rear frame toward the front wheel of the body frame to a position where the second end portion of each of the two supporting brackets together with the rear wheel can be supported on the ground synchronously.
Inventors
- 👤 Ping-Tien Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:40
CPC Classifications
B; B62; B62K; B62K15/00; B62K15/006; B62K15/008
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
212 words
A collapsible bicycle comprising: a body frame (10) including a first end portion and a second end portion, a front wheel (14) rotatably mounted on said first end portion of said body frame (10), and a seat tube (15) fixedly mounted on said second end portion of said body frame (10); a rear frame (30) including an upright tube (31) disposed beneath said seat tube (15), a pair of seat stays (32) each extending from said upright tube (31), a rear wheel (36) rotatably mounted between said pair of seat stays (32), and a pair of supporting brackets (34) each having a first end portion fixedly mounted on a corresponding one of said pair of seat stays (32) and a second end portion (341) located at a position flush with said rear wheel (36); and a pivot mechanism (20) pivotally connected between said seat tube (15) and said upright tube (31) such that said upright tube (31) can be pivoted relative to said seat tube (15), thereby pivoting said rear frame (30) toward said front wheel (14) of said body frame (10) to a position where said second end portion (341) of each of said two supporting brackets (34) together with said rear wheel (36) can be supported on the ground synchronously.
Claim 2
Dependent Claim
212 words
A collapsible bicycle comprising: a body frame (10) including a first end portion and a second end portion, a front wheel (14) rotatably mounted on said first end portion of said body frame (10), and a seat tube (15) fixedly mounted on said second end portion of said body frame (10); a rear frame (30) including an upright tube (31) disposed beneath said seat tube (15), a pair of seat stays (32) each extending from said upright tube (31), a rear wheel (36) rotatably mounted between said pair of seat stays (32), and a pair of supporting brackets (34) each having a first end portion fixedly mounted on a corresponding one of said pair of seat stays (32) and a second end portion (341) located at a position flush with said rear wheel (36); and a pivot mechanism (20) pivotally connected between said seat tube (15) and said upright tube (31) such that said upright tube (31) can be pivoted relative to said seat tube (15), thereby pivoting said rear frame (30) toward said front wheel (14) of said body frame (10) to a position where said second end portion (341) of each of said two supporting brackets (34) together with said rear wheel (36) can be supported on the ground synchronously.
Claim 3
Dependent Claim
56 words
The collapsible bicycle in accordance with claim 1, wherein said pivot mechanism (20) includes an upper pivot base (21) fixedly mounted on a lower portion of said seat tube (15), and a lower pivot base (22) fixedly mounted on an upper portion of said upright tube (31) and pivotally connected with said upper pivot base (21).
Claim 4
Dependent Claim
121 words
The collapsible bicycle in accordance with claim 2, wherein said upper pivot base (21) is substantially inverted U-shaped with two vertical pieces (211) each having a first end portion (212) transversely defining a bore (214) therein, said lower pivot base (22) pivotally fitted between said two vertical pieces (211) and including a first end portion (221) transversely defining a hole (222) therein and aligning with said bore (214) of each of said two vertical pieces (211), and a pivot axle (23) extending through said bore (214) of each of said two vertical pieces (211) and said hole (222) of said lower pivot base (22) such that said lower pivot base (22) can be pivoted relative to said upper pivot base (21).
References Cited (Backward Citations)
DE1106626B
Cited
US3374009A
Cited
GB1112828A
Cited
SU435978A1
Cited
US4202561A
Cited
US4379566A
Cited
SU1104046A1
Cited
US4566713A
Cited
US4579360A
Cited
US4634138A
Cited
US4844494A
Cited
US5337609A
Cited
US5440948A
Cited
US5492350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-16 | 2002-05-18 | 2002-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-16 | 2006-05-18 | 2006-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-16 | 2010-05-18 | 2010-11-17 | $7700.00 | Window Closed / Lapsed |