ANSI Z315.1-2012 pdf download Tricycles – Safety Requirements
3.4 normal riding position: The position assumed by a child sitting on the tricycle seat with both feet on the pedals and hands on the grips of the handlebars or steering mechanism. 3.5 permanent marking: A marking or label shall be considered permanent if, during an attempt to manually remove it without the aid of tools or solvents, it cannot be removed, it tears, or it damages the surface to which it is attached.
3.6 principal display panel: the display panel for a retail package or container, bin, or vending machine that is most likely to be displayed, shown, presented, or examined under normal or customary conditions of display for retail sale.
3.7 projection, hazardous: A projection that, because of its material or configuration, or both, may present a puncture hazard if a child should fall onto it. Excluded from this definition are puncture hazards to the eyes or mouth, or both, because of the impossibility of eliminating puncture hazards to those areas of the body by product design.
3.8 protrusion: (1) Any component or decorative feature (other than standard bolt or screw heads) that extends beyond the face of any gage in figure 2(d), when tested in accordance with 5.9; (2) screw threads that protrude more than one major diameter of the screw beyond the internally threaded mating member; (3) screw threads that may come in contact with any part of the operator’s body when the operator is in normal riding position and that protrude farther than 1/8 inch (3 mm) beyond the internally threaded mating member.
3.9 push handle: a device attached to the rear of a tricycle intended to allow an older caregiver to propel and control direction (in some cases, by remote steering) of the tricycle. A push handle may attach to the tricycle permanently, or may be removable. The placement and dimensions of a steering handle typically allow an adult caregiver to walk in a fully erect posture behind the tricycle. A stabilizing handle is not considered a push handle.
3.10 rigid: any material having a hardness exceeding 70 Shore A scale durometer, as measured by the latest revision of ASTM Test Method D2240 .
3.11 stabilizing handle: A device intended for a child to utilize as a stabilizing aid in walking behind or mounting the tricycle (typically attached to the rear of the seat). A stabilizing handle does not provide steering control, and has placement and dimensions appropriate to provide a handhold for a user of the target age range of the tricycle when said child assumes an approximately erect posture.
3.12 steering lock: a device intended, when engaged, to prevent the steered wheel(s) of a tricycle from being controlled by the child occupant; the handlebars or other control handle(s) may or may not turn when the steering lock is engaged.