US4417746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kickstand for a motorcycle
Assignee: Bayerische Motoren Werke AG
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Filing: 1981-04-30
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Granted: 1983-11-29
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Expires: 2001-04-30
Abstract
Abstract A kickstand device is disclosed. The device includes a kickstand articulated to the frame of a motorcycle by means of a ball joint, in such fashion that its free end is displaceable upward and downward relative to the motorcycle within a limited range of angles. In addition, the kickstand is displaceable against the action of two extension springs from a swung-in travel position through a dead center point of the springs into a swung-out parking position. The lengthwise extent of the kickstand is adjusted so that when the motorcycle is standing vertical, the free end of the kickstand is in contact with the ground. If the motorcycle rider forgets to swing in the kickstand when he starts his motorcycle, this device ensures that the kickstand will drag for a relatively short distance, whereupon the kickstand will swivel rearward through the dead center point of extension springs and will finally be swung in completely by the springs.
Inventors
- 👤 Gunter Baron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:54
CPC Classifications
B; B62; B62H; B62H1/00; B62H1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
A kickstand device for a motorcycle comprising a kickstand and means for articulating said kickstand to a frame of the motorcycle so that the kickstand is swivelable against the action of at least one spring from a swung-in travel position through a dead center point of the springs into a swung-out parking position with the free end of the kickstand, in the parking position, being displaceable upward relative to the motorcycle against the force of the springs over a limited angle range, characterized in that the kickstand is in contact with the ground in the lower extreme position of the angle range when the motorcycle is in a vertical position.
Claim 2
Dependent Claim
110 words
A kickstand device for a motorcycle comprising a kickstand and means for articulating said kickstand to a frame of the motorcycle so that the kickstand is swivelable against the action of at least one spring from a swung-in travel position through a dead center point of the springs into a swung-out parking position with the free end of the kickstand, in the parking position, being displaceable upward relative to the motorcycle against the force of the springs over a limited angle range, characterized in that the kickstand is in contact with the ground in the lower extreme position of the angle range when the motorcycle is in a vertical position.
Claim 3
Dependent Claim
77 words
A kickstand device according to claim 1, wherein said kickstand is formed at an end segment with a fork having two fork legs which are articulated to a receiving part mounted to the frame of the motorcycle, said means for articulation including a hinge pin which is inserted in a receiving bore in the fork, and wherein the fork legs of said fork are located at a distance from the corresponding abutting surfaces of the receiving part.
Claim 4
Dependent Claim
44 words
A kickstand device according to claim 2, wherein the hinge pin supports a spherical ring mounted with zero play in its axial direction between the two legs of the fork, said spherical ring being received by a spherical bearing surface of the receiving part.
Claim 5
Dependent Claim
42 words
A kickstand device according to claim 3, wherein the receiving part projects between the two legs of the fork and in the parking position of the kickstand abuts the two fork legs under the load imposed on the kickstand by the motorcycle.
Claim 6
Dependent Claim
109 words
A kickstand device according to claim 2, 3, or 4, wherein said springs include two springs associated with the kickstand which are disposed on the side of the kickstand which faces the lengthwise center plane of the motorcycle, wherein the fork leg facing the springs is beveled at an acute angle on the inside face of its free end segment beginning at the center of the receiving bore for the hinge pin, and wherein the free end segment of the receiving part is beveled at the same angle beginning at the center of the spherical bearing surface on its abutting surface which faces away from the beveled fork leg.
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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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |