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US 4,522,607 AGranted
Toy railroad vehicle with alignment bias
AssigneeMattel, Inc.
InventorsEugene J. Kilroy, James E. Morse, Thomas H. Grimm, Nicholas DeAnda
Life of this patent
Estimating the term…
Abstract
A toy train set includes a toy train car operative upon a two rail trackway. The trackway includes means for reducing the toy train speed at selected places along the trackway and a track intersection having no moving parts which permits a child user to select either of two direction paths. Means are provided on the toy cars to facilitate placement upon the trackway by a younger child.
Claims5
A toy railroad vehicle, for use in combination with two rail trackway, comprising:
- a first truck assembly having a first plurality of wheels adapted to roll upon said rails, first spring receiving means, and first shaft means rigidly coupling said first spring receiving means to said first plurality of wheels;
- a second truck assembly having a second plurality of wheels adapted to roll upon said rails, second spring receiving means, and second shaft means rigidly coupling said second spring receiving means to said second plurality of wheels;
- a substantially flat elongated chassis having means supporting said first and second truck assemblies such that said truck assemblies are free to rotate about an axis perpendicular to the plane of said chassis;
- and
- a spring comprising an elongated flat beam spring having first and second ends coupled to said first and second spring receiving means, said spring providing a resisting force when said first and second truck assemblies are rotated away from common alignment along the centerline of said chassis in the direction of greater length.
2 more elements
A toy railroad vehicle comprising:
- a substantially flat elongated chassis defining a greater length in the intended direction of travel and a pair of apertures adjacent each end along said greater length;
- a first truck assembly having a first center support, a first pair of spaced apart axles coupled to said first center support, and a first quartet of wheels arranged in opposed pairs upon said first pair of axels;
- a second truck assembly having a second center support, a second pair of spaced apart axels coupled to said second center support, and a second quartet of wheels arranged in opposed pairs upon said second pair of axels;
- a first spring platform defining a first plurality of raised members extending away from said platform and forming therebetween a first center space;
- a second spring platform defining a second plurality of raised members extending away from said platform and forming therebetween a second center space;
- a first shaft member extending through said first aperture having a first end coupled to said first spring platform and a second end coupled to said first center support of said first truck assembly;
- a second shaft member extending through said second aperture having a first end coupled to said second spring platform and a second end coupled to said second center support of said second truck assembly;
- and
- an elongated beam spring having a substantially flat cross section and having a first end passing through said first center space of said first spring platform and a second end passing through said second center space of said second spring platform,
- said elongated beam spring exerting a resisting force which opposes rotation of said first and second truck assemblies away from common alignment in the intended direction of travel.
7 more elements
Dependencies are inferred from the claim text.