US4171592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy moving car operated by a wireless electric device
Assignee: Individual
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Filing: 1977-07-18
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Granted: 1979-10-23
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Expires: 1997-07-18
Abstract
Abstract A toy moving car is a toy car operated by a wireless electric device and comprises a car and a wireless electric transmitter in separation. All means including a driving means and a braking means are mounted on a bottom plate of the car. A pair of front wheels of the driving means are mounted on a front axle which is journaled in both sides of an axle support frame. The axle support frame is pivoted on the bottom plate. The braking means comprises a receiver, an electromagnet and a pair of brake disks. A sliding frame is adapted to slide laterally on the axle support frame and is equipped with the electromagnet having a pair of magnet cores. Each of the brake disks is fixed to each inside surface of the front wheels by a leaf-spring as a buffer. During a time that the receiver is receiving the electric wave from the transmitter, the electromagnet works and either one of the magnet cores which is closer to one of the brake disks sticks to said one brake disk. Therefore, the front wheel is braked and the car runs while turning to the braked side and changing alternately a turning direction by each transmission of the electric wave.
Inventors
- 👤 Shigeru Saitoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:02
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/36; A63H30/00; A63H30/02; A63H30/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
355 words
A toy moving car which is operated by a wireless electric device, comprising a car and a wireless transmitter in separation, said car being formed with a body and a bottom plate, said bottom plate being provided with all means operating the car including a braking means, said braking means comprising a pair of brake disks, a sliding frame having an electromagnet, and a receiver, an axle support frame being symmetrically pivoted on the front portion and the center line of said bottom plate and being adapted to turn between a definite angle limited by ends of a stopper fixed to both sides of said bottom plate in front of said support frame, a front axle being journaled at both sides of said support frame and a pair of front wheels being rotatably mounted respectively on both ends of said front axle, each of the front wheels being fitted with one of the brake disks and a buffer of a leaf-spring on an inside surface of said front wheel, a guide channel being perforated transversely on the support frame, the sliding frame being mounted on the support frame so as to slide along said guide channel, said sliding frame being equipped with said electromagnet which has a pair of U-shaped magnet cores, said magnet cores projecting outwardly from both sides of the sliding frame, a connecting projection of the sliding frame projecting rearward at the middle of the back of the sliding frame, a support on the center line of the bottom plate in the rear of the axle support frame, a connecting disk pivoted on the upper end of said support by a screw and a coiled spring and having a depression with a narrow opening and a wide interior, the connecting projection being adapted to be inserted to the depression of the connecting disk, the axle support frame being adapted to be forced to return to the normal position by a spring, and the electromagnet being adapted to be actuated by the receiver during transmission of electromagnetic waves so that the car runs while turning alternatively upon each transmission of the electromagnetic waves.
Claim 2
Dependent Claim
355 words
A toy moving car which is operated by a wireless electric device, comprising a car and a wireless transmitter in separation, said car being formed with a body and a bottom plate, said bottom plate being provided with all means operating the car including a braking means, said braking means comprising a pair of brake disks, a sliding frame having an electromagnet, and a receiver, an axle support frame being symmetrically pivoted on the front portion and the center line of said bottom plate and being adapted to turn between a definite angle limited by ends of a stopper fixed to both sides of said bottom plate in front of said support frame, a front axle being journaled at both sides of said support frame and a pair of front wheels being rotatably mounted respectively on both ends of said front axle, each of the front wheels being fitted with one of the brake disks and a buffer of a leaf-spring on an inside surface of said front wheel, a guide channel being perforated transversely on the support frame, the sliding frame being mounted on the support frame so as to slide along said guide channel, said sliding frame being equipped with said electromagnet which has a pair of U-shaped magnet cores, said magnet cores projecting outwardly from both sides of the sliding frame, a connecting projection of the sliding frame projecting rearward at the middle of the back of the sliding frame, a support on the center line of the bottom plate in the rear of the axle support frame, a connecting disk pivoted on the upper end of said support by a screw and a coiled spring and having a depression with a narrow opening and a wide interior, the connecting projection being adapted to be inserted to the depression of the connecting disk, the axle support frame being adapted to be forced to return to the normal position by a spring, and the electromagnet being adapted to be actuated by the receiver during transmission of electromagnetic waves so that the car runs while turning alternatively upon each transmission of the electromagnetic waves.
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) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |