Patent US1833377A successfully refreshed from Google Patents.
Patent US5069467A successfully refreshed from Google Patents.
US5069467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front shock absorbing unit for motorcycles
Assignee: Individual
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Filing: 1990-05-21
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Granted: 1991-12-03
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Expires: 2010-05-21
Abstract
Abstract The present invention pertains to a front shock absorbing unit for motorcycles, whose main characteristic is that the shock absorbing element (22), pivoted to the frame (23), is located in such a way as to correspond to the longitudinal plane of symmetry of the frame, and is connected by means of a pin (20) to an articulated structure (5, 6, 11, 13, 16, 18) which includes in particular two forks (5 and 6) pivoted to the stanchions (1) which in turn are pivoted to the hub (2) of front wheel (3) (FIG. 1).
Inventors
- 👤 De Bei Claudio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:25
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/04; B62K25/12; B62K25/22; B62K25/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
291 words
A front shock absorbing unit for motorcycles comprising a deformable structure with an upper fork and a lower fork, each including a plurality of arms, said forks each being pivoted on a first end to a sleeve which is integrally attached to a pair of stanchions fixed to a hub of a wheel, and, on a second end, where the forks are at their widest distance apart, the upper fork is pivoted on second end by pins to the frame of the motorcycle and the lower fork is pivoted by pins to a pair of link rods which are in turn pivoted by pins to the frame, wherein said pins located at the second end of the forks are mutually connected to a cross, and wherein those pins which are connected to the frame on each side thereof are linked in pairs by a first rod to which there is fixed a tube for supporting a handlebar, said tube being secured at a first joint by means of a structure which includes a plurality of second rods, said structure being secured at a second joint to the upper ends of the stanchions connected to the wheel hub, wherein a plate slides on said plurality of second rods, and further comprising a tie rod pivoted at one end to each of the arms of the upper fork, the other end of said tie rod being pivoted to an end of a lever which is centrally pivoted to the frame and is pivoted at its other end to one end of a shock absorbing element, said shock absorbing element being pivoted at its other end to the frame wherein said shock absorbing element extends along a longitudinal plane of symmetry of the frame.
Claim 2
Dependent Claim
291 words
A front shock absorbing unit for motorcycles comprising a deformable structure with an upper fork and a lower fork, each including a plurality of arms, said forks each being pivoted on a first end to a sleeve which is integrally attached to a pair of stanchions fixed to a hub of a wheel, and, on a second end, where the forks are at their widest distance apart, the upper fork is pivoted on second end by pins to the frame of the motorcycle and the lower fork is pivoted by pins to a pair of link rods which are in turn pivoted by pins to the frame, wherein said pins located at the second end of the forks are mutually connected to a cross, and wherein those pins which are connected to the frame on each side thereof are linked in pairs by a first rod to which there is fixed a tube for supporting a handlebar, said tube being secured at a first joint by means of a structure which includes a plurality of second rods, said structure being secured at a second joint to the upper ends of the stanchions connected to the wheel hub, wherein a plate slides on said plurality of second rods, and further comprising a tie rod pivoted at one end to each of the arms of the upper fork, the other end of said tie rod being pivoted to an end of a lever which is centrally pivoted to the frame and is pivoted at its other end to one end of a shock absorbing element, said shock absorbing element being pivoted at its other end to the frame wherein said shock absorbing element extends along a longitudinal plane of symmetry of the frame.
Claim 3
Dependent Claim
53 words
A front shock absorbing unit for motorcycles as in claim 1 wherein the pins with which the link rods are connected to the frame, are housed eccentrically in a cylindrical structure within a seating made transversely on said link rod, said cylindrical structure being capable of effecting angular movements about its own axis.
Claim 4
Dependent Claim
279 words
A front shock absorbing unit for motorcycles which comprises: (a) a pair of stanchions fixed to a hub of a wheel; (b) a sleeve which is integrally attached to the stanchions; (c) an upper fork and a lower fork, each including a plurality of fork arms; (d) a first pivot means for pivoting the forks at a first fork end to the sleeve; (e) a second pivot means for pivoting the forks at a second fork end, where the fork arms are at their widest distance apart, such that the upper fork is pivoted to a frame and the lower fork is pivoted to a pair of link rods which are in turn pivoted to the frame; (f) a cross pivotally connecting the forks to each other at the second fork ends; (g) a first rod pivotally secured on each side of the frame; (h) a tube secured to each first rod wherein the tube is secured at a second end by a first joint to a structure which includes a plurality of second rods, said structure being secured at a second joint to the upper ends of the stanchions, wherein a plate slides on said rods; (i) a pair of tie rods each pivoted at a first rod end to the upper fork, a second end of each tie rod being pivoted to a first end of a lever which is centrally pivoted to the frame; (j) a shock absorbing element which is pivoted, at a first end, to a second end of the lever and pivoted at its second end to the frame, said shock absorbing element extending along a longitudinal plane of symmetry of the frame.
Claim 5
Dependent Claim
279 words
A front shock absorbing unit for motorcycles which comprises: (a) a pair of stanchions fixed to a hub of a wheel; (b) a sleeve which is integrally attached to the stanchions; (c) an upper fork and a lower fork, each including a plurality of fork arms; (d) a first pivot means for pivoting the forks at a first fork end to the sleeve; (e) a second pivot means for pivoting the forks at a second fork end, where the fork arms are at their widest distance apart, such that the upper fork is pivoted to a frame and the lower fork is pivoted to a pair of link rods which are in turn pivoted to the frame; (f) a cross pivotally connecting the forks to each other at the second fork ends; (g) a first rod pivotally secured on each side of the frame; (h) a tube secured to each first rod wherein the tube is secured at a second end by a first joint to a structure which includes a plurality of second rods, said structure being secured at a second joint to the upper ends of the stanchions, wherein a plate slides on said rods; (i) a pair of tie rods each pivoted at a first rod end to the upper fork, a second end of each tie rod being pivoted to a first end of a lever which is centrally pivoted to the frame; (j) a shock absorbing element which is pivoted, at a first end, to a second end of the lever and pivoted at its second end to the frame, said shock absorbing element extending along a longitudinal plane of symmetry of the frame.
Claim 6
Dependent Claim
253 words
An articulated front shock absorbing unit for motorcycles, comprising: an upper fork having first and second ends; a lower fork having first and second ends; a stanchion means for rotatably supporting a wheel; a sleeve secured to the stanchion means, wherein said upper and lower forks are each pivotally secured at said first ends thereof to said sleeve; a frame, wherein said second end of said upper fork is pivotally secured to said frame; a link rod means for pivotally securing said second end of said lower fork to said frame; a cross securing said first and second forks to each other adjacent said second ends of said first and second forks; a support means, secured to said frame, for supporting a handlebar; a structure including a plurality of rods, said structure having a first end and a second end, said structure being secured by a first joint at said first end to said support means and being secured at said second end by a second joint to said stanchion means; a tie rod secured at a first end to said upper fork; an arm having a first end to which a second end of said tie rod is pivotally secured, said arm being pivoted to said frame; and, a shock absorber having a first end to which a second end of said arm is pivotally secured, said shock absorber having a second end which is pivotally secured to said frame, wherein said shock absorber extends along a longitudinal axis of said frame.
Claim 7
Dependent Claim
253 words
An articulated front shock absorbing unit for motorcycles, comprising: an upper fork having first and second ends; a lower fork having first and second ends; a stanchion means for rotatably supporting a wheel; a sleeve secured to the stanchion means, wherein said upper and lower forks are each pivotally secured at said first ends thereof to said sleeve; a frame, wherein said second end of said upper fork is pivotally secured to said frame; a link rod means for pivotally securing said second end of said lower fork to said frame; a cross securing said first and second forks to each other adjacent said second ends of said first and second forks; a support means, secured to said frame, for supporting a handlebar; a structure including a plurality of rods, said structure having a first end and a second end, said structure being secured by a first joint at said first end to said support means and being secured at said second end by a second joint to said stanchion means; a tie rod secured at a first end to said upper fork; an arm having a first end to which a second end of said tie rod is pivotally secured, said arm being pivoted to said frame; and, a shock absorber having a first end to which a second end of said arm is pivotally secured, said shock absorber having a second end which is pivotally secured to said frame, wherein said shock absorber extends along a longitudinal axis of said frame.
Claim 8
Dependent Claim
22 words
The shock absorbing unit of claim 4 comprising a plate which is slideably mounted on said plurality of rods of said structure.
Claim 9
Dependent Claim
17 words
The shock absorbing unit of claim 4 wherein said first and second joints each comprise universal joints.
Claim 10
Dependent Claim
63 words
The shock absorbing unit of claim 4 wherein said support means comprises: first and second rods which are spaced from each other and are each pivotally secured to said frame; first and second tubes which are spaced from each other and are fixedly secured, respectively, to said first and second rods; and a supporting element fixedly secured to said first and second tubes.
Claim 11
Dependent Claim
82 words
The shock absorbing unit of claim 4 wherein said lower fork second end includes first and second legs and wherein said link rod means comprises: a first link rod pivotally secured at a first end to said lower fork second end first leg and pivotally secured at a second end to said frame; and, a second link rod pivotally secured at a first end to said lower fork second end second leg and pivotally secured at a second end to said frame.
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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) | 1994-12-02 | 1995-06-03 | 1995-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-02 | 1999-06-03 | 1999-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-02 | 2003-06-03 | 2003-12-03 | $7700.00 | Window Closed / Lapsed |