US3874701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handlebar fastening device for a two-wheel bicycle
Assignee: Individual
•
Filing: 1973-12-06
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Granted: 1975-04-01
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Expires: 1993-12-06
Abstract
Abstract A hand operated fastening device for removably securing handle bars to a bicycle in connection with the front steering wheel thereof permitting ease of removal of the handle bars without requiring tools or the like for ease of transportation and storage of the bicycle, the device including a rectangularly elongated head member having a semi-circular top surface interconnecting the end portions thereof and having a shank projecting outwardly of the rectangular portion to be threadedly joined in a conventional wedge assembly for securing the handle bars to the steering fork post of the bicycle, the head portion of the bolt being readily grasped in the hand of an individual to effect tightening and loosening rotative movement thereto about its longitudinal axis.
Inventors
- 👤 William E Soong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:15
CPC Classifications
B; B62; B62K; B62K21/00; B62K21/18; B62K21/24; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7062; Y10T403/7064; Y10T403/7066; Y10T403/7067; Y10T403/7069; Y10T403/76; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/2078
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
336 words
A device for detachably attaching a handle bar to the frame of a two-wheel bicycle having a front wheel and a back wheel, the front wheel journaled about its axis to a fork terminating at its top end in a post, a hollow tubular stem mounted on the bicycle frame and adapted to rotatably receive the post in the bottom end thereof, a bracket adapted tO be secured at one point to the midpoint of the handle bars with a portion of the bracket defining a cylindrical stem adapted to project inwardly of the hollow tubular frame stem and engage the post, a wedging member having a base with a cylindrical threaded bore therein and having a wedging leg projecting upwardly therefrom adapted to wedgingly engage the bottom portion of the cylindrical leg, the cylindrical stem having a bore extending axially therethrough and disposed in alignment with the threaded cylindrical bore of the wedging member, the fastening device comprising: a bolt member having an enlarged head portion, a collar member depending from the head portion, and a shank depending from the collar member, threads disposed about the circumference of the shank adjacent the terminal end portion and adapted to threadedly engage the threads in the threaded cylindrical bore of the wedge member, and the head portion adapted to be grasped in the hand of an individual in a manner to effect a rotating force thereon in a first direction about the shank axis to effect the threaded engagement of the threaded cylindrical bore to fasten the handle bars to the bicycle frame, and rotatable in an opposite direction about the shank axis to effect the removal of the handle bars from the bicycle frame, the head portion of the bolt member includes a pair of opposed semicircular front and back surfaces, the peripheral curved edges of the front and back surfaces interconnected by a smooth longitudinally arcuately concave curved surface, and a flat elongated rectangular bottom surface interconnecting the end portions of the curved top surface.
Claim 2
Independent Claim
336 words
A device for detachably attaching a handle bar to the frame of a two-wheel bicycle having a front wheel and a back wheel, the front wheel journaled about its axis to a fork terminating at its top end in a post, a hollow tubular stem mounted on the bicycle frame and adapted to rotatably receive the post in the bottom end thereof, a bracket adapted tO be secured at one point to the midpoint of the handle bars with a portion of the bracket defining a cylindrical stem adapted to project inwardly of the hollow tubular frame stem and engage the post, a wedging member having a base with a cylindrical threaded bore therein and having a wedging leg projecting upwardly therefrom adapted to wedgingly engage the bottom portion of the cylindrical leg, the cylindrical stem having a bore extending axially therethrough and disposed in alignment with the threaded cylindrical bore of the wedging member, the fastening device comprising: a bolt member having an enlarged head portion, a collar member depending from the head portion, and a shank depending from the collar member, threads disposed about the circumference of the shank adjacent the terminal end portion and adapted to threadedly engage the threads in the threaded cylindrical bore of the wedge member, and the head portion adapted to be grasped in the hand of an individual in a manner to effect a rotating force thereon in a first direction about the shank axis to effect the threaded engagement of the threaded cylindrical bore to fasten the handle bars to the bicycle frame, and rotatable in an opposite direction about the shank axis to effect the removal of the handle bars from the bicycle frame, the head portion of the bolt member includes a pair of opposed semicircular front and back surfaces, the peripheral curved edges of the front and back surfaces interconnected by a smooth longitudinally arcuately concave curved surface, and a flat elongated rectangular bottom surface interconnecting the end portions of the curved top surface.
Claim 3
Dependent Claim
56 words
The fastening device as set forth in claim 1 wherein the collar member comprises an elongated cylindrical member formed integrally with the head portion and having one end connected thereto with the opposite end projecting outwardly therefrom normal to the plane of the bottom surface, and the collar member being disposed centrally of the bottom surface.
Claim 4
Dependent Claim
74 words
The fastening device as set forth in claim 2 wherein the shank member is formed integrally with the collar member and concentric therewith, one end of the shank member connected to the projecting end of the collar member, and the shank including a cylindrical rod like body member extending between the end portions of the shank with the body member being of a diameter to engage the threaded cylindrical bore in the wedging member.
Claim 5
Dependent Claim
68 words
The fastening device as set forth in claim 3 wherein the collar member is of a larger diameter than the shank member, the point of joining of the shank member to the collar member defining an annular shoulder thereabout, and the annular shoulder adapted to rotatably engage the top surface of the cylindrical stem of the handle bar bracket to support the bolt member in operative position therein.
References Cited (Backward Citations)
US3787126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |