US3675944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for attaching a front-wheel fork to a head pipe in a two-wheeled vehicle or the like
Assignee: Honda Motor Co Ltd
•
Filing: 1969-12-16
•
Granted: 1972-07-11
•
Expires: 1989-12-16
Abstract
Abstract A front-wheel fork of a two-wheel vehicle carries upper and lower bridge members adapted for detachably engaging opposite ends of a core end projecting from a head pipe. The bridge members have central openings with lateral grooves in which the ends of the rod can be introduced and removed, and selectively locked by means of positioning members on the rod which engage in the central openings and interlock with the bridge members.
Inventors
- 👤 Yozaburo Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:20
CPC Classifications
B; B62; B62K; B62K15/00; B62K2015/001; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32951; Y10T403/32967; Y10T403/33; Y10T403/335
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
Attachment apparatus for a front wheel fork and a head pipe of a two-wheeled vehicle or the like, said apparatus comprising a steering stem positioned rotatably in the head pipe, a core rod in said stem and including opposite projecting ends, upper and lower bridge members on the fork with respective central openings and lateral grooves opening externally thereof for the sideways introduction and removal of the projecting ends of the core rod into and from said openings, and including projecting walls at least partly encircling said openings, and positioning members on the core rod engageable in said openings in the bridge members and in the stem for adjustably sandwiching the bridge members axially against said stem with the bridge members being spaced from said head pipe, said positioning members and bridge members including interlocking means for holding the members together against lateral displacement when the positioning members and bridge members are juxtaposed.
Claim 2
Dependent Claim
153 words
Attachment apparatus for a front wheel fork and a head pipe of a two-wheeled vehicle or the like, said apparatus comprising a steering stem positioned rotatably in the head pipe, a core rod in said stem and including opposite projecting ends, upper and lower bridge members on the fork with respective central openings and lateral grooves opening externally thereof for the sideways introduction and removal of the projecting ends of the core rod into and from said openings, and including projecting walls at least partly encircling said openings, and positioning members on the core rod engageable in said openings in the bridge members and in the stem for adjustably sandwiching the bridge members axially against said stem with the bridge members being spaced from said head pipe, said positioning members and bridge members including interlocking means for holding the members together against lateral displacement when the positioning members and bridge members are juxtaposed.
Claim 3
Dependent Claim
31 words
Apparatus as claimed in claim 1 wherein said interlocking means comprises a flange on each positioning member with an annular projecting wall thereon, for engaging the walls on the bridge members.
Claim 4
Dependent Claim
27 words
Apparatus as claimed in claim 2 wherein the groove in each bridge member has a width which is smaller than the diameter of the central opening thereof.
Claim 5
Dependent Claim
26 words
Apparatus as claimed in claim 2 wherein the groove in each bridge member has a width substantially equal to the diameter of the central opening therein.
Claim 6
Dependent Claim
66 words
Apparatus as claimed in claim 1 wherein the core rod supporting the positioning members is constituted as a single rod passing vertically through the steering stem, said apparatus further comprising collars on said rod each having an outer diameter substantially equal to the inner diameter of the steering stem and attached to the rod within the steering stem to position the rod coaxially in the stem.
Claim 7
Dependent Claim
25 words
Apparatus as claimed in claim 5 wherein at least one of the collars is in frictional engagement with the inner surface of the steering stem.
Claim 8
Dependent Claim
60 words
Apparatus as claimed in claim 1 wherein said core rod is constituted as a single rod passing vertically through the steering stem, at least one of said positioning members being threadably engaged on said rod, such that by rotation of either the core rod or the positioning member threaded thereon the positioning member can be axially displaced along the rod.
Claim 9
Dependent Claim
30 words
Apparatus as claimed in claim 7 wherein the other of the positioning members is secured to the rod for rotation thereon while being longitudinally immovable with respect to the rod.
Claim 10
Dependent Claim
63 words
Apparatus as claimed in claim 1 comprising means for holding the core rod rotatably in said stem and longitudinally immovable, said positioning members being threadably engaged on the opposite ends of the core rod by right and left handed threads so as to be simultaneously engaged and disengaged with respect to the central openings of the bridge members by turning the core rod.
References Cited (Backward Citations)
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US668546A
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US3015498A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |