In this disclosure a connection arrangement for a trampoline is set out, the arrangement including a mat and a frame. The connection arrangement includes a cord and a security piece, which includes a receiving part and a cord holding part. The cord holding part is configured to receive both ends of the cord and thus forming a loop that includes the cord and the cord holding part. The receiving part receives the cord holding part and one end of the loop through an opening. The loop is configured to wrap around some horizontal part of the frame of the trampoline when the connection arrangement is fitted onto the frame.

An elastic bed includes: a ring frame, comprised of four connecting frames that are pin-connected in sequence, where two adjacent connecting frames can be folded in half relative to the other two connecting frames through a transverse folding interface, and two adjacent connecting frames can be folded in half through a longitudinal folding interface; a mesh fabric, disposed inside the ring frame and detachably connected to the ring frame.

An elastic bed includes: a ring frame, comprised of four connecting frames that are pin-connected in sequence, where two adjacent connecting frames can be folded in half relative to the other two connecting frames through a transverse folding interface, and two adjacent connecting frames can be folded in half through a longitudinal folding interface; a mesh fabric, disposed inside the ring frame and detachably connected to the ring frame.

A trampoline includes a bounce fabric, a plurality of fabric clamps and a fixed frame. The bounce fabric is connected to the fabric clamps, and one end of the fabric clamp is connected to one end of a spring. The fixed frame includes connectors and frame grooved pipes. The surface of the frame grooved pipe is provided with a grooved-pipe horizontal channel, and the other end of the spring is connected to the grooved-pipe horizontal channel on the surface of the frame grooved pipe. The connector is provided with a grooved-pipe connecting end and a support-pipe connecting end. The inner side of the grooved-pipe connecting end is provided with a through hole, and the surface of the grooved-pipe connecting end is provided with a groove. One end of the frame grooved pipe is arranged in the through hole. The groove is arranged in the grooved-pipe horizontal channel.

A trampoline includes a bounce fabric, a plurality of fabric clamps and a fixed frame. The bounce fabric is connected to the fabric clamps, and one end of the fabric clamp is connected to one end of a spring. The fixed frame includes connectors and frame grooved pipes. The surface of the frame grooved pipe is provided with a grooved-pipe horizontal channel, and the other end of the spring is connected to the grooved-pipe horizontal channel on the surface of the frame grooved pipe. The connector is provided with a grooved-pipe connecting end and a support-pipe connecting end. The inner side of the grooved-pipe connecting end is provided with a through hole, and the surface of the grooved-pipe connecting end is provided with a groove. One end of the frame grooved pipe is arranged in the through hole. The groove is arranged in the grooved-pipe horizontal channel.

A fold-up trampoline, having at least three posts arranged in parallel to one another and to a vertical direction (V), wherein a jumping bed is tensioned between the at least three posts, at least three bracing struts which connect a respective other pair of posts arranged next to one another in a peripheral direction (U) of the trampoline and stabilize these posts in a horizontal direction (H), wherein each bracing strut is foldably mounted on both posts arranged next to one another in the peripheral direction (U) and has at least one central joint, which is provided in a central region (B1) of the bracing strut, wherein all the posts arranged next to one another in the peripheral direction (U) can be moved towards one another in order to fold up the trampoline.

A fold-up trampoline, having at least three posts arranged in parallel to one another and to a vertical direction (V), wherein a jumping bed is tensioned between the at least three posts, at least three bracing struts which connect a respective other pair of posts arranged next to one another in a peripheral direction (U) of the trampoline and stabilize these posts in a horizontal direction (H), wherein each bracing strut is foldably mounted on both posts arranged next to one another in the peripheral direction (U) and has at least one central joint, which is provided in a central region (B1) of the bracing strut, wherein all the posts arranged next to one another in the peripheral direction (U) can be moved towards one another in order to fold up the trampoline.

Apparatus, systems, and methods are provided for measuring and analyzing movements of a body and for communicating information related to such body movements over a network. In certain embodiments, a system gathers biometric and biomechanical data relating to positions, orientations, and movements of various body parts of a user performed during sports activities, physical rehabilitation, or military or law enforcement activities. The biometric and biomechanical data can be communicated to a local and/or remote interface, which uses digital performance assessment tools to provide a performance evaluation to the user. The performance evaluation may include a graphical representation (e.g., a video), statistical information, and/or a comparison to another user and/or instructor. In some embodiments, the biometric and biomechanical data is communicated wirelessly to one or more devices including a processor, display, and/or data storage medium for further analysis, archiving, and data mining. In some embodiments, the device includes a cellular telephone.

A trampoline (1) with a jumping mat (6) fastened to a frame structure (2) by elastic elements, and with a frame cover (8) covering the top side of the frame structure (2) and the elastic elements. The frame cover (8) has a multilayer structure, whose layers are made of different materials. Alternatively or additionally, the frame cover (8) has a spatially varying height profile.

A trampoline (1) with a jumping mat (6) fastened to a frame structure (2) by elastic elements, and with a frame cover (8) covering the top side of the frame structure (2) and the elastic elements. The frame cover (8) has a multilayer structure, whose layers are made of different materials. Alternatively or additionally, the frame cover (8) has a spatially varying height profile.