Patent US4091561A successfully refreshed from Google Patents.
US4091561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling road system of a toy
Assignee: OKUMA SEISAKUSHO CO Ltd
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Filing: 1977-02-17
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Granted: 1978-05-30
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Expires: 1997-02-17
Abstract
Abstract A toy road system includes a helical, ascending roadway fixedly mounted on a base and coaxially enveloping a column rotatably mounted on the same base. A slide is axially freely movable on the column, but secured thereto for joint angular movement. A permanent magnet on the slide may couple a toy vehicle carrying an armature to the slide so that the slide rises along the column and a coupled vehicle moves along the ascending roadway while the column turns. A descending roadway connects the two ends of the helical roadway for descent of the uncoupled vehicle by gravity.
Inventors
- 👤 Chiyuki Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:17
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/042; A63H18/00; A63H18/02; A63H18/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A toy road system comprising: (a) a base; (b) an elongated column having a longitudinal axis, one longitudinal end portion of said column being movably mounted on said base; (c) drive means for turning said column about said axis; (d) a helical toy roadway coaxially enveloping said column, said roadway having two axially spaced terminal portions, one of said terminal portions being fixedly fastened to said base; (e) a slide axially movable on said column and secured thereto for joint angular movement about said axis; (f) coupling means for coupling a toy to said slide for joint movement along said roadway during said turning of said column, said coupling means including a coupling member on said slide; and (g) another toy roadway connecting said two terminal portions.
Claim 2
Dependent Claim
127 words
A toy road system comprising: (a) a base; (b) an elongated column having a longitudinal axis, one longitudinal end portion of said column being movably mounted on said base; (c) drive means for turning said column about said axis; (d) a helical toy roadway coaxially enveloping said column, said roadway having two axially spaced terminal portions, one of said terminal portions being fixedly fastened to said base; (e) a slide axially movable on said column and secured thereto for joint angular movement about said axis; (f) coupling means for coupling a toy to said slide for joint movement along said roadway during said turning of said column, said coupling means including a coupling member on said slide; and (g) another toy roadway connecting said two terminal portions.
Claim 3
Dependent Claim
47 words
A system as set forth in claim 1, further comprising a toy vehicle dimensioned for moving along said toy roadways, said coupling means including a permanent magnet element and an armature element, one of said elements being said coupling member, the other element being on said vehicle.
Claim 4
Dependent Claim
17 words
A system as set forth in claim 2, wherein said coupling member is said permanent magnet element.
Claim 5
Dependent Claim
31 words
A system as set forth in claim 2, wherein said drive means include a gear coaxially mounted on said column, and means for meshingly engaging said gear with another, driven gear.
Claim 6
Dependent Claim
33 words
A system as set forth in claim 1, further comprising uncoupling means for uncoupling a coupled car from said slide in response to movement of said slide to one of said terminal portions.
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) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |