US3964765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle
Assignee: Yamaha Corp of America
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Filing: 1974-11-15
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Granted: 1976-06-22
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Expires: 1994-11-15
Abstract
Abstract A bicycle with a frame suspended on the wheels by telescoping shock absorbers that permit large vertical movements of the wheels when they hit bumps without producing large vertical movements of the bicycle frame, so that pedaling can continue uninterrupted in traversing rough terrain.
Inventors
- 👤 Darwin Zenser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:48
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/04; B62K25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
400 words
A bicycle comprising: front and rear wheels (12, 14) having axles; a frame (16) having forward and rearward ends, the forward end having a pair of front mount locations above the level of the front wheel axle and the rearward end having a pair of rear mount locations above the level of the rear wheel axle, the frame having a multiple connector (70) located between the wheels and forming a pedal bearing and a swing arm bearing, and the frame including a tubular rear frame member (32) extending upwardly and rearwardly from the multiple connector and a tubular lower frame member (38) extending forwardly and upwardly from the multiple connector, said multiple connector connecting said rear and lower frame members; a seat assembly (18) mounted on the frame for holding a rider, said seat assembly including a shaft (34) adjustably mounted in said tubular rear member and including a seat (130) at the top; a pedal assembly (20) rotatably mounted on the pedal bearing, for rotational driving by the rider; chain means (80) coupling the pedal assembly to the rear wheel; a swing arm (64) having a forward end pivotally mounted on the swing arm bearing and a rearward end rotatably connected to the rear wheel; a pair of telescoping rear shock absorbers (50, 52) connecting the rear mount locations of the frame to the rearward end of the swing arm; a pair of telescoping front shock absorbers (94, 96) having upper portions connected to the front mount location of the frame and having lower portions rotatably coupled to the front wheel, said lower portions being of greater diameter than said upper portions and slideably receiving the lower ends of said upper portions; the frame including a front member (26) coupled to the front end of the lower frame member and also including a pair of elongated shock-mount members (40, 42) extending rearwardly from a location near the front of the lower frame member, said mount members extending on opposite sides of the rear frame member and joined thereto and said mount members extending behind the rear frame member with each of said rear shock absorbers coupled to a different one of the mount members; and a rear fender mounted on the rear end of said mount members, said mount members joined together at their rearward ends (44), and their rearward ends angled upward to extend over said rear fender.
Claim 2
Dependent Claim
400 words
A bicycle comprising: front and rear wheels (12, 14) having axles; a frame (16) having forward and rearward ends, the forward end having a pair of front mount locations above the level of the front wheel axle and the rearward end having a pair of rear mount locations above the level of the rear wheel axle, the frame having a multiple connector (70) located between the wheels and forming a pedal bearing and a swing arm bearing, and the frame including a tubular rear frame member (32) extending upwardly and rearwardly from the multiple connector and a tubular lower frame member (38) extending forwardly and upwardly from the multiple connector, said multiple connector connecting said rear and lower frame members; a seat assembly (18) mounted on the frame for holding a rider, said seat assembly including a shaft (34) adjustably mounted in said tubular rear member and including a seat (130) at the top; a pedal assembly (20) rotatably mounted on the pedal bearing, for rotational driving by the rider; chain means (80) coupling the pedal assembly to the rear wheel; a swing arm (64) having a forward end pivotally mounted on the swing arm bearing and a rearward end rotatably connected to the rear wheel; a pair of telescoping rear shock absorbers (50, 52) connecting the rear mount locations of the frame to the rearward end of the swing arm; a pair of telescoping front shock absorbers (94, 96) having upper portions connected to the front mount location of the frame and having lower portions rotatably coupled to the front wheel, said lower portions being of greater diameter than said upper portions and slideably receiving the lower ends of said upper portions; the frame including a front member (26) coupled to the front end of the lower frame member and also including a pair of elongated shock-mount members (40, 42) extending rearwardly from a location near the front of the lower frame member, said mount members extending on opposite sides of the rear frame member and joined thereto and said mount members extending behind the rear frame member with each of said rear shock absorbers coupled to a different one of the mount members; and a rear fender mounted on the rear end of said mount members, said mount members joined together at their rearward ends (44), and their rearward ends angled upward to extend over said rear fender.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |