Hollow Non-Inflatable Balls TRIZ Cases

A tennis practice device uses a segmented suspension cord to enable realistic ball trajectories, resolving tangling and setup complexity.

A wind tolerant ball uses venturi shaped apertures and dimples to manage aerodynamic airflow through a thin-walled hollow sphere.

Specific inorganic fillers with controlled pore structures block gas molecules to prevent leakage from the hollow core while maintaining resilience performance.

Flat inorganic fillers orient within the rubber matrix to block gas permeation, preventing internal pressure loss and maintaining impact resilience.

Dimples on a tennis ball core reduce drag to extend flight distance.

Specific benzothiazole derivative accelerates crosslinking, reducing time and co-crosslinking agent for high hardness.

Pliable ribs bend under pressure to reshape the toy, resolving the trade-off between compact storage volume and versatile play functionality.

A tennis ball pressurizer pierces the outer skin with a needle to inject air into the inner chamber.

Protrusions on the massage device hold a removable cover to direct pressure into hard-to-reach areas without manual manipulation.

A golf training ball uses a free-rolling inner core and drag-inducing felt cover to mimic regulation flight characteristics.

Thermoplastic resin composition for table tennis balls uses cellulose acetate butyrate and impact modifiers to create durable spheres.

A low-pressure tennis ball uses a spherical hollow elastomeric core to maintain rebound performance without high internal pressure.

Non-uniform foam thickness controls light diffusion from an internal LED, resolving the trade-off between child safety and nighttime visibility.