An apparatus for testing a flexible screen. The apparatus for testing a flexible screen includes a slide rail, a reel, a clamping module and a drive module. The reel is fixed to one end of the slide rail. The axial direction of the reel is perpendicular to the extension direction of the slide rail. The flexible screen includes a first end and a second end which are disposed opposite to each other. The reel is configured to fix the first end of the flexible screen and rotate to drive the flexible screen to fit to the reel and coil around the reel. The clamping module is configured to clamp the second end of the flexible screen. The reel is further configured to rotate to drive, through the flexible screen, the clamping module to slide along the slide rail towards the reel.

An apparatus for testing a flexible screen. The apparatus for testing a flexible screen includes a slide rail, a reel, a clamping module and a drive module. The reel is fixed to one end of the slide rail. The axial direction of the reel is perpendicular to the extension direction of the slide rail. The flexible screen includes a first end and a second end which are disposed opposite to each other. The reel is configured to fix the first end of the flexible screen and rotate to drive the flexible screen to fit to the reel and coil around the reel. The clamping module is configured to clamp the second end of the flexible screen. The reel is further configured to rotate to drive, through the flexible screen, the clamping module to slide along the slide rail towards the reel.

An apparatus for testing a flexible screen. The apparatus for testing a flexible screen includes a slide rail, a reel, a clamping module and a drive module. The reel is fixed to one end of the slide rail. The axial direction of the reel is perpendicular to the extension direction of the slide rail. The flexible screen includes a first end and a second end which are disposed opposite to each other. The reel is configured to fix the first end of the flexible screen and rotate to drive the flexible screen to fit to the reel and coil around the reel. The clamping module is configured to clamp the second end of the flexible screen. The reel is further configured to rotate to drive, through the flexible screen, the clamping module to slide along the slide rail towards the reel.

An apparatus for testing a flexible screen. The apparatus for testing a flexible screen includes a slide rail, a reel, a clamping module and a drive module. The reel is fixed to one end of the slide rail. The axial direction of the reel is perpendicular to the extension direction of the slide rail. The flexible screen includes a first end and a second end which are disposed opposite to each other. The reel is configured to fix the first end of the flexible screen and rotate to drive the flexible screen to fit to the reel and coil around the reel. The clamping module is configured to clamp the second end of the flexible screen. The reel is further configured to rotate to drive, through the flexible screen, the clamping module to slide along the slide rail towards the reel.

A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion is a tubular structure including inner and outer peripheral walls, each having inner and outer surfaces. The head portion of the racquet being formed of a fiber composite material. The fiber composite material includes a plurality of ply arrangements. Each includes a pair of plies defining first and second angles with respect to a composite axis. A section of the outer peripheral wall from the inner surface to the outer surface includes at least three ply arrangements overlaying each other, and the first and second angles of at least two of the at least three ply arrangements being at least 35 degrees. When the racquet is tested under a racquet torsional stability test, the racquet has an angular deflection of less than 5.5 degrees about a longitudinal axis.

A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion is a tubular structure including inner and outer peripheral walls, each having inner and outer surfaces. The head portion of the racquet being formed of a fiber composite material. The fiber composite material includes a plurality of ply arrangements. Each includes a pair of plies defining first and second angles with respect to a composite axis. A section of the outer peripheral wall from the inner surface to the outer surface includes at least three ply arrangements overlaying each other, and the first and second angles of at least two of the at least three ply arrangements being at least 35 degrees. When the racquet is tested under a racquet torsional stability test, the racquet has an angular deflection of less than 5.5 degrees about a longitudinal axis.

A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion forms a hoop that defines a string bed plane. The head portion of the racquet being formed of a fiber composite material. When the racquet is tested under a racquet forward/rearward bending test, the racquet has a forward/rearward deflection with respect to the longitudinal axis of at least 8.5 mm when measured in a direction that is perpendicular to the string bed plane and perpendicular to the longitudinal axis. When the racquet is tested under a racquet torsional stability test, the racquet has an angular deflection of less than 5.5 degrees about a longitudinal axis.

A racquet including a frame including a head portion, a handle portion, and a throat portion. The head portion forms a hoop that defines a string bed plane. The head portion of the racquet being formed of a fiber composite material. When the racquet is tested under a racquet forward/rearward bending test, the racquet has a forward/rearward deflection with respect to the longitudinal axis of at least 8.5 mm when measured in a direction that is perpendicular to the string bed plane and perpendicular to the longitudinal axis. When the racquet is tested under a racquet torsional stability test, the racquet has an angular deflection of less than 5.5 degrees about a longitudinal axis.

A racquet extending along a longitudinal axis and including a frame including a head portion, a handle portion, and a throat portion. The head portion forms a hoop that defines a string bed plane. At least the head portion and the throat portion of the frame are formed at least in part of a fiber composite material. When the racquet is tested under the racquet lateral bending test, the racquet has a lateral deflection of at least 6.0 mm when measured in a direction that is parallel to the string bed plane and perpendicular to the longitudinal axis.

A racquet extending along a longitudinal axis and including a frame including a head portion, a handle portion, and a throat portion. The head portion forms a hoop that defines a string bed plane. At least the head portion and the throat portion of the frame are formed at least in part of a fiber composite material. When the racquet is tested under the racquet lateral bending test, the racquet has a lateral deflection of at least 6.0 mm when measured in a direction that is parallel to the string bed plane and perpendicular to the longitudinal axis.