Toy vehicle

• US 4,767,376 A
• Filed: 10/27/1986
• Issued: 08/30/1988
• Est. Priority Date: 10/29/1985
• Status: Expired due to Fees

• Current Assignee: Hanzawa Corporation
• Original Assignee: Hanzawa Corporation
• Inventors: Hanzawa, Tsuneo
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/923,628
• Time in Patent Office: 673 Days
• Field of Search: 446/396, 446/431, 446/437, 446/456, 446/457, 446/462, 446/464, 446/465, 446/470
• US Class Current: 446/457
• CPC Class Codes: A63H 17/004 Stunt-cars, e.g. lifting front wheels, roll-over or invertible cars

Abstract

A self-righting flywheel motor operated toy vehicle includes attitude restoration components at the rear thereof, the vehicle having the center of gravity thereof along the longitudinal centerline thereof. A first component includes an attitude restoration plate configured in the form of a spoiler member attached at the rear of the vehicle above the rear wheels and having a width greater than the distance between the outer sides of the wheels for enabling the maintaining of a slight elevational angle of the vehicle when on either side, with a corner of the driving wheel on that side in contact with the surface. The force of the driving wheel tends to self-right the vehicle. The second component includes an elongate somewhat rigid, yet flexible wire member configured to simulate a whip antenna, which is connected to the chassis at a corner thereof at about the rear surface of the rear wheels, and positioned for coaction of an intermediate portion thereof with the spoiler member as the vehicle attempts to scale a generally vertical surface. The resilience during partial deformation of the wire member serves to keep the driving wheels in contact with the surface. As the driving continues, the vehicle turns to one side or the other, and by itself, or with the assistance of the first component, self-rights itself.

Claims

1. A toy vehicle comprising:

chassis means having a longitudinal centerline in the direction of travel of the vehicle;

at least one pair of rear drive wheels coupled to said chassis means;

motor means on said chassis means coupled for simultaneously driving said drive wheels, said motor means having the center of gravity thereof lying generally along the longitudinal centerline of said chassis means;

a first attitude restoration member secured to said chassis means at a position above said rear drive wheels, said member being plate like and configured to simulate an air spoiler and having the ends thereof extending laterally beyond the outer limit of the right and left wheels in the direction lateral to the longitudinal centerline of said chassis means, said plate like member being so dimensioned, configured and arranged that with the vehicle tipped to one side on a surface, at least one of said driving wheels is in contact with the surface, the combined effect of a driven driving wheel in contact with the surface and the center of gravity of the motor means providing a restoring force to self-right the vehicle; and

a second attitude restoration member, said second attitude restoration member member including a flexible yet somewhat rigid wire member having one end thereof secured to the rear portion of said chassis means intermediate said rear wheels in an orientation substantially perpendicular to the plane of the chassis means, said wire member being configured to resemble a vehicle antenna member, said wire member being so dimensioned and positioned for contact with a horizontal surface with the vehicle attempting to scale a generally vertical surface, said second attitude restoration member assiting in maintaining at least one of said rear drive wheels in contact with the vertical surface until the vehicle pivots from a generally vertical attitude about an axis defined by said wire member.

2. The toy vehicle of claim 1 in which said wire member is attached to said chassis means at a position offset from the longitudinal centerline of said chassis means.

3. The toy vehicle according of claim 1 wherein said chassis means includes front and rear chassis sections and a body structure configured to simulate a roll cage.

4. The toy vehicle according to claim 3 wherein said body structure is secured to said front chassis section, said rear chassis section has an edge thereof pivotably coupled to a rear edge of said front chassis section, said plate like member is secured to said body structre, and said rear chassis section is interconnected with said plate like member by spring means.

5. In a toy vehicle having a pair of rear driving wheels rotatably supported on vehicle body means, the combination comprising:

motor means coupled to the vehicle body means for providing rotational power to both rear driving wheels of the toy vehicle;

an air-spoiler-like attitude restoration plate member attached to and located at the upper rear area of the vehicle body means, said attitude restoration plate member being located above said drive wheels and extending beyond the outer limits of the left and right rear wheels in the directions lateral to the longitudinal centerline of the vehicle; and

a car-radio-antenna-like attitude restoration spring wire member, extending upwardly from the rear portion of said vehicle body means, each of said attitude restoration members being arranged and positioned for assisting in restoring the vehicle to a normal operational attitude under force of the rotational power of said driving wheels in the event the vehicle assumes an attitude other than normal.

6. The combination according to claim 5 wherein the toy vehicle has a longitudinal centerline in the direction of travel thereof, said motor means of said toy vehicle has the center of gravity thereof located generally along said longitudinal centerline.

7. The combination according to claim 6 wherein said attitude restoration wire member is offset from said longitudinal centerline.

8. The combination according to claim 5 wherein said driving wheels include a common axle, and said plate member is positioned above and in general alignment with said axle.

9. The combination according to claim 8 wherein said plate member has the rear edge thereof in generally vertical alignment with the rearmost edges of said driving wheels with said vehicle in its normal position on a surface.

10. The combination according to claim 5 wherein said wire member has one end thereof attached to the rearmost portion of said body means, said wire member extending along a line which is in proximate relation to the rearmost edges of said driving wheels.

11. In a toy vehicle having a pair of rear driving wheels rotatably supported about an axis on vehicle body means, the combination comprising:

motor means coupled to said vehicle body means for providing rotational power to both rear driving wheels of the toy vehicle;

a plate member attached to and located at the upper rear area of the vehicle body means, said plate member extending beyond the outer limits of the left and right rear wheels in the directions lateral to the longitudinal centerline of the vehicle; and

a spring wire member, extending upwardly from the rear portion of said vehicle body means, each of said plate member and said spring member being attitude restoration members arranged and positioned for contact with a surface upon movement of the vehicle to other than a normal driving attitude for assisting in restoring the vehicle to a normal operational attitude under force of said driving wheels in the event the vehicle assumes an attitude other than normal.

12. The toy vehicle of claim 11 wherein said plate member has the rearmost edge thereof generally lying along a line generally parallel to the axis of rotation of the wheels and in a plane perpendicular to a surface supporting the vehicle, edges of said driving wheels is in substantially coplanar said plane.

13. The toy vehicle according to claim 12 wherein said wire member extends along a line in proximate relation to said plane.