US4010379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for a motorcycle
Assignee: Kawasaki Motors Ltd
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Filing: 1975-12-15
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Granted: 1977-03-01
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Expires: 1995-12-15
Abstract
Abstract The device comprises a switch adapted to break the ignition circuit of a motorcycle and turn on a lamp when the motorcycle stand is in an operative position. A neutral switch is closed when the transmission is brought to a neutral position, and the engine starting circuit and the ignition circuit are simultaneously completed in synchronism with the closing of the neutral switch. A clutch switch can complete the engine starting circuit independently of the operation described above.
Inventors
- 👤 Takeshi Shimamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
B; B60; B60K; B60K28/00; B60K28/10; B62; B62H; B62H1/00; B62J; B62J27/00; B62J6/00; B62J6/22; B62J6/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
A safety device for a motorcycle having a stand movable between operative and inoperative positions, said safety device comprising, in combination, an ignition circuit composed of a primary winding of an ignition coil and a circuit breaker; a battery; a main switch connected to said battery and operable to connect said ignition circuit in parallel with said battery; a motorcycle stand switch connected in series with said ignition circuit and said main switch and operable to break said ignition circuit when the motorcycle stand is in an operative position and to complete the ignition circuit when the motorcycle stand is an in inoperative position; a first electronic switching element connected in parallel with said motorcycle stand switch; a neutral switch connected in parallel with said battery through said main switch and operable to an operative position only when a transmission is in the neutral position; and circuit means connecting said neutral switch to said first electronic switching element and operable, responsive to said neutral switch being operated to its operative position, to bring said first electronic switching element to an on state.
Claim 2
Dependent Claim
182 words
A safety device for a motorcycle having a stand movable between operative and inoperative positions, said safety device comprising, in combination, an ignition circuit composed of a primary winding of an ignition coil and a circuit breaker; a battery; a main switch connected to said battery and operable to connect said ignition circuit in parallel with said battery; a motorcycle stand switch connected in series with said ignition circuit and said main switch and operable to break said ignition circuit when the motorcycle stand is in an operative position and to complete the ignition circuit when the motorcycle stand is an in inoperative position; a first electronic switching element connected in parallel with said motorcycle stand switch; a neutral switch connected in parallel with said battery through said main switch and operable to an operative position only when a transmission is in the neutral position; and circuit means connecting said neutral switch to said first electronic switching element and operable, responsive to said neutral switch being operated to its operative position, to bring said first electronic switching element to an on state.
Claim 3
Dependent Claim
53 words
A safety device as claimed in claim 1, wherein said motorcycle stand switch is a bipolar switch; and a warning lamp connected to said bipolar switch and energized responsive to movement of said bipolar switch to a position breaking said ignition circuit responsive to said motorcycle stand being moved to its operative position.
Claim 4
Dependent Claim
56 words
A safety device, as claimed in claim 1, further comprising a starter circuit, composed of a starter switch and a relay for a solenoid for a starter motor, connected in parallel with said battery through said main switch; and a clutch switch disposed in said starter circuit and adapted to close when a clutch is disengaged.
Claim 5
Dependent Claim
96 words
A safety device, as claimed in claim 1, further comprising a starter circuit, composed of a starter switch and a relay for energizing the solenoid for a starter motor, connected in parallel with said battery through said main switch; and a second electronic switching element connected in parallel with said motorcycle stand switch through said starter circuit; said circuit means further connecting said neutral switch to said second electronic switching element and being operable, responsive to said neutral switch being operated to its operative position, to bring said second electronic switching element to an off state.
Claim 6
Dependent Claim
31 words
A safety device, as claimed in claim 4, further comprising a clutch switch connected in parallel with said second electronic switching element and adapted to close when a clutch is disengaged.
References Cited (Backward Citations)
US3918743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |