A shoe adapted for use with a plurality of various attachable and interchangeable skating accessories whereby said accessories may be selectively and removably locked into the sole of said shoe, and whereby certain safety features are provided in the form of front and rear stops for a roller skate.

A convertible sports device has a housing, and sport members movable between an extended and a retracted position relative to the housing. An arresting member is provided, which in a first position abuts against a first face of each of the sport members so as to arrest them in the extended position, and in a second position abuts against another face of the sport members so as to arrest the latter in the retracted position. The housing may be formed as a bottom portion of a shoe or may be attachable to the shoe. The arresting member may be actuated by an actuator which, in turn, may be actuated by a foot of a user so that the sport members may be retracted or extended without the need to use one's hands.

Roller mounted shoe including at least one front roller (3a, 3b) and at least one rear roller (4a, 4b). The front (3a, 3b) and rear (4a, 4b) rollers are movable between a first ground-engaging position and a second raised position. The front (3a, 3b) and rear (4a, 4b) rollers are connected to one another by means of a flexible link (11) extending through the sole (2), so as to simultaneously displace the front (3a, 3b) and rear (4a, 4b) rollers using pull members connected to the flexible link (11).

A wheel assembly for a roller skate includes a pivotal seat having a first end secured to a base of the roller skate, a wheel seat having a first end pivotally connected to a second end of the pivotal seat by a pin, and a wheel rotatably mounted to a second end of the wheel seat. A first elastic member has a first end attached to the pivotal seat and a second end attached to a mounting member on the wheel seat for biasing the wheel seat to a storage position in the base. A stopping member includes a first end mounted to the pin and a second end through which the mounting member is extended. A second elastic member is mounted around the pin for biasing a stop of the stopping member to a position for releasably engaging with the wheel seat to prevent the wheel seat from moving into the storage position in the base when the wheel seat and the wheel are extended beyond the base for skating.

A roller skate shoe incorporates a wheel lock releaser arrangement which includes a locking member movably attached to a shaft for locking up a wheel frame from being slid rotatably with respect to a supporting frame of the roller skate shoe. The locking member includes an operation button extended to an exterior of a shoe base for operating the locking member. A resilient member is adapted for applying an urging pressure against the locking member so as to normally retain the locking member in a locking position. At the locking position, the locking member is engaged with the wheel frame such that the wheel frame is locked for a rotational movement. For operating the roller skate shoe, a player must press the operation button inwardly to disengage the locking member with the wheel frame, so as to unlock the wheel frame from being slid out of the receiving cavity.