US3831971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety belt winding energy accumulator device for use in vehicles
Assignee: Tokai Rika Co Ltd
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Filing: 1972-10-27
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Granted: 1974-08-27
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Expires: 1992-10-27
Abstract
Abstract A safety belt winding energy accumulator device for use in a vehicle, which is so designed that when a door of the vehicle is opened and closed, energy is accumulated in a spiral spring through a transmission shaft which is driven by the door opening and closing operation or a motor, and the accumulated energy is supplied to a pulley having a tape connected thereto at one end, the other end of which is connected a belt webbing, to rotate the pulley, whereby the belt webbing is drawn up from its engaging position by way of the tape.
Inventors
- 👤 Y Kaneko
- 👤 T Nishikawa
- 👤 F Teraoka
- 👤 T Kubota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:38
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
A safety belt winding energy accumulator device for use in vehicles comprising a driving source; a rotatable transmission shaft; gear means transmitting power of said driving source into said transmission shaft; a spiral spring anchored at its inner end to said transmission shaft and accumulated with winding energy by the rotation of said shaft; a barrel drum, to which the outer end of said spiral spring is fixedly connected; a belt drawing pulley for winding up a tape connected at it one end to a belt webbing; first clutch means for engaging with said pulley and engaged with said barrel drum; and second one way clutch means arranged between said transmission shaft and said gear means.
Claim 2
Dependent Claim
116 words
A safety belt winding energy accumulator device for use in vehicles comprising a driving source; a rotatable transmission shaft; gear means transmitting power of said driving source into said transmission shaft; a spiral spring anchored at its inner end to said transmission shaft and accumulated with winding energy by the rotation of said shaft; a barrel drum, to which the outer end of said spiral spring is fixedly connected; a belt drawing pulley for winding up a tape connected at it one end to a belt webbing; first clutch means for engaging with said pulley and engaged with said barrel drum; and second one way clutch means arranged between said transmission shaft and said gear means.
Claim 3
Dependent Claim
25 words
A safety belt winding energy accumulator device for use in vehicles according to claim 1 wherein said one way clutch means comprises a ratchet-pawl mechanism.
Claim 4
Dependent Claim
53 words
A safety belt winding energy accumulator device for use in vehicles according to claim 1 which comprises an electric circuit means having a first solenoid means connected to a door switch and a seat switch to control said first clutch means, said switches being connected to said electric circuit means in series therewith.
Claim 5
Dependent Claim
52 words
A safety belt winding energy accumulator device for use in vehicles according to claiM 1 which comprises an electric circuit means having a first solenoid means connected to a door switch and a seat switch and a detecting switch for the tape winding connected between said solenoid means and said door switch.
Claim 6
Dependent Claim
63 words
A safety belt winding energy accumulator device for use in vehicles according to claim 1 which comprises an electric circuit means having a solenoid means connected to, and in series with, a door switch and a seat switch to control said drawing pulley so as to disengage said drawing pulley when it is energized by the closing of said door and seat switches.
Claim 7
Dependent Claim
36 words
A safety belt winding energy accumulator device for use in vehicles according to claim 5, wherein a tape rewinding detecting switch is connected between the solenoid means and the door switch in the electric circuit means.
Claim 8
Dependent Claim
47 words
A safety belt winding energy accumulator for use in vehicles according to claim 4, wherein the tape drawing pulley is provided with a spiral groove on the upper surface thereof and said detecting switch comprises an actuator lever having an actuator slidably engaging with said spiral groove.
Claim 9
Dependent Claim
34 words
A safety belt winding energy accumulator device for use in vehicles according to claim 6, wherein the tape rewinding detecting switch comprises an actuator lever having an actuator slidably engaging with a spiral groove.
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |