US3787126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handlebar assemblies
Assignee: Raleigh Industries Ltd
•
Filing: 1972-01-06
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Granted: 1974-01-22
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Expires: 1992-01-06
Abstract
Abstract This invention concerns a handlebar assembly in which a handlebar stem is provided to be located within the front fork tube in such a manner that it can be raised or lowered by an amount determined by the length of a track formed in the handlebar stem which contains a ball captive in the steering head locknut.
Inventors
- 👤 R Arlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:19
CPC Classifications
B; B62; B62K; B62K21/00; B62K21/12; B62K21/16; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
98 words
A handlebar assembly including a handlebar stem to which a handlebar is attachable, and a front fork tube and means for locking the two in a required position characterised in that the handlebar stem is provided with a longitudinaly disposed ball receiving track over part of its length, there being a ball located within the track and projecting within a steering head locknut whereby release of the locking means enables the range adjustment of the handlebar stem relative to a front fork tube to be achieved, such adjustments being limited to the length of the ball receiving track.
Claim 2
Dependent Claim
98 words
A handlebar assembly including a handlebar stem to which a handlebar is attachable, and a front fork tube and means for locking the two in a required position characterised in that the handlebar stem is provided with a longitudinaly disposed ball receiving track over part of its length, there being a ball located within the track and projecting within a steering head locknut whereby release of the locking means enables the range adjustment of the handlebar stem relative to a front fork tube to be achieved, such adjustments being limited to the length of the ball receiving track.
Claim 3
Dependent Claim
39 words
A handlebar assembly as claimed in claim 1 in which the ball receiving track is in the form of a groove formed intermediate the ends of the handlebar stem, said groove having an indent preferably at its upper end.
Claim 4
Dependent Claim
40 words
A handlebar assembly as claimed in claim 1 in which the handlebar stem is slit at its lower end and said slit allowing the lower end of the stem to be expanded into gripping relationship with the front fork tube.
Claim 5
Dependent Claim
46 words
A handlebar assembly as claimed in claim 3 in which, for expansion of the handlebar stem, there is provided a frusto conical element operably connected to said stem to prevent rotation relative thereto and means for drawing said element into the stem to expand the latter.
Claim 6
Dependent Claim
54 words
A handlebar assembly as claimed in claim 4 in which the means for drawing the element into the stem is in the form of a bolt passing through the stem, relative rotation of the element and the stem being prevented by engagement of a rib on the element with a slit in the stem.
Claim 7
Dependent Claim
17 words
Ahandlebar assembly as claimed in claim 3 in which there are three equi-spaced slits in the stem.
Claim 8
Dependent Claim
43 words
A handlebar assembly as claimed in claim 1 in which the ball is retained in the track by means of a locknut located on the front fork tube, the ball being retained in the locknut by the end of the front fork tube.
Claim 9
Dependent Claim
39 words
A handlebar assembly as claimed in claim 1 in which the front fork tube is surrounded by a ball race whereby rotation of the front fork tube relative to a head tube within which it is contained is facilitated.
References Cited (Backward Citations)
US1379784A
Cited
US1428601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |