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US4034504A Expired / Lapsed US ⏱️ 0.0 years remaining

Direction changing electromagnetic device for wheeled toys

Assignee: Individual
•
Filing: 1976-04-16
•
Granted: 1977-07-12
•
Expires: 1996-04-16
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Abstract

Abstract A direction changing device for moving toys to be operated by a wireless remote-control system, wherein an operating rod is laterally slidably disposed in parallel with a wheel shaft so as to be engaged with any one of a plurality of recessed portions formed in a disc concentrically fitted inside any one of the wheels at both ends of the wheel shaft, when the rod is caused to move in that direction by an energized electromagnet which attracts a movable iron piece connected with the operating rod. The wheel, the rotation of which is stopped by the engagement of the operating rod with the engaging disc, becomes a pivot for turning the body of the moving toy in any desired direction.

Inventors

  • 👤 Shyohei Sudo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 19:03
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/36; A63H30/00; A63H30/02; A63H30/04

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 337 words
A direction changing and steering device for a moving toy to be operated by a wireless remote-control device, which comprises in combination: a base plate having two end parts, said end parts being bent upright to define axle supporting members, a wheel axle having two ends, wheels fixed at said two ends and passing through and being held by said axle supporting members of said base plate in a rotatable manner, an engaging disc having an inside surface with a plurality of recessed portions, said disc being fixed coaxially with and in one of said wheels so that said disc may not be rotated in idle, while the other wheel is made freely rotatable in idle, an operating rod arranged in parallel with said wheel axle in a laterally slidable manner through said upright end parts of said base plate so that one of the end parts thereof may be properly engaged with any one of the recessed portions in said engaging disc, when said operating rod is caused to move laterally, an electromagnet mounted on one part of said base plate, and a movable iron piece having two ends, one end of which is fixed on said other end of said operating rod and the other end of said movable iron piece is oscillatably supported in the vicinity of said electromagnet so as to cause the operating rod to shift sidewise, when said movable iron piece is attracted to and contacted with the iron core of said electromagnet, a pivot pin, said base plate being oscillatably fitted on the body of said moving toy by said pivot pin to enable said toy to change its moving direction on the pivot of the wheel, the rotation of said wheel being prevented by the operating rod engaged at its one tip end with said one of the recessed portions of said engaging disc provided inside of the wheel, when said movable iron piece contacts the iron core of said electromagnet by a control signal emitted from the outside.
Claim 2
Dependent Claim 337 words
A direction changing and steering device for a moving toy to be operated by a wireless remote-control device, which comprises in combination: a base plate having two end parts, said end parts being bent upright to define axle supporting members, a wheel axle having two ends, wheels fixed at said two ends and passing through and being held by said axle supporting members of said base plate in a rotatable manner, an engaging disc having an inside surface with a plurality of recessed portions, said disc being fixed coaxially with and in one of said wheels so that said disc may not be rotated in idle, while the other wheel is made freely rotatable in idle, an operating rod arranged in parallel with said wheel axle in a laterally slidable manner through said upright end parts of said base plate so that one of the end parts thereof may be properly engaged with any one of the recessed portions in said engaging disc, when said operating rod is caused to move laterally, an electromagnet mounted on one part of said base plate, and a movable iron piece having two ends, one end of which is fixed on said other end of said operating rod and the other end of said movable iron piece is oscillatably supported in the vicinity of said electromagnet so as to cause the operating rod to shift sidewise, when said movable iron piece is attracted to and contacted with the iron core of said electromagnet, a pivot pin, said base plate being oscillatably fitted on the body of said moving toy by said pivot pin to enable said toy to change its moving direction on the pivot of the wheel, the rotation of said wheel being prevented by the operating rod engaged at its one tip end with said one of the recessed portions of said engaging disc provided inside of the wheel, when said movable iron piece contacts the iron core of said electromagnet by a control signal emitted from the outside.
Claim 3
Dependent Claim 35 words
The direction changing device as claimed in claim 2, wherein a pair of stopper pins are disposed in front of said base plate to hinder excessive oscillation of said base plate on the pivot pin.
Claim 4
Dependent Claim 35 words
The direction changing device as claimed in claim 2, wherein said base plate is provided with a notched portion to be engaged with one of said pair of stopper pins to prevent excessive oscillation thereof.
Claim 5
Dependent Claim 59 words
The direction changing device as claimed in claim 1, which includes: a spring, and in which said movable iron piece is biased by said spring at its oscillatably supported other end in a direction opposite to the direction of said operating rod moving into said engaged disc when said iron piece is attracted by said electromagnet in energized condition.
Claim 6
Dependent Claim 55 words
The direction changing device as claimed in claim 2, wherein said base plate at one side portion thereof is hooked to and biased by a spring so that it may be constantly in contact with one of said stopper pins to secure straight movement of said toy body, when said operating rod is not actuated.

References Cited (Backward Citations)

US2718729A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-07-11 1981-01-10 1981-07-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-07-11 1985-01-10 1985-07-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-07-11 1989-01-10 1989-07-12 $7700.00 Window Closed / Lapsed

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