Denotes Use Zone with Protective Surfacing 2H H 2H 6 ft. 6 ft. 6 ft. 6 ft. Figure 25. Use Zone for Single-Axis Belt Swings Denotes Use Zone with Protective Surfacing L 6 ft. L+6 ft. 6 ft. Figure 27. Use Zone for Multi-Axis Swings 30" Min. Figure 26. Multi-Axis Swing Clearance 0 Handbook for Public Playground Safety 5.3.8.4.1 Multi-axis swing use zones • The use zone should extend in any direction from a point directly beneath the pivot point for a minimum distance of 6 feet plus the length of the suspending members (see Figure 27). This use zone should never overlap the use zone of any other equipment. • To minimize the hazard of impact, heavy truck tires should be avoided. Further, if steel-belted radials are used, they should be closely examined to ensure that there are no exposed steel belts or wires that could be a potential protrusion or laceration hazard. Plastic materials can be used as an alternative to simulate actual automobile tires. Drainage holes should be provided in the underside of the tire. • Pay special attention to maintenance of the hanger mechanism because the likelihood of failure is higher for tire swings due to the added stress of rotational movement and multiple occupants. • The hanger mechanisms for multi-axis tire swings should not have any accessible crush points. • The minimum clearance between the seating surface of a tire swing and the uprights of the supporting structure should be 30 inches when the tire is in a position closest to the support structure (Figure 26). • The minimum clearance between the bottom of the seat and the protective surface should not be less than 12 inches.
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