Abstract: A steering system includes: a base including a first structure and an axial hole defining an axial direction; a shaft rotatably inserted in the axial hole; a rotatable seat including a second structure located on a side of the rotatable seat facing the base, the rotatable seat being connected to and movable with the shaft; and at least one elastic member arranged around the axial direction and abutted against and between the first and second structures, wherein when the rotatable seat rotates relative to the base, the at least one elastic member is forced by the first and second structures and generates a deformation around the axial direction. A scooter includes the steering system, and further includes: a deck connected to the base; a steering mechanism including the shaft; and a plurality of wheels connected to the deck and the rotatable seat, respectively.

Abstract: A detachable seat assembly, including: a handle member, a seat member and a saddle member, the handle member including a mounting portion at a bottom side thereof, the mounting portion including an inner threaded hole at a front side thereof and a buckling member; the seat member and the handle member being detachably connected, the seat member including a mounting hole within which the mounting portion is inserted, the seat member further including a knob and a first hole, the knob including a handle and a threaded section, the threaded section being screwed to the inner threaded hole, the buckling member being disposed through the first hole; the saddle member being mounted on the handle member and the seat member.

Abstract: A foldable scooter is provided, including: a deck assembly, including a first deck and a second deck foldably connected and relatively rotatable about a first direction, the first deck including a first lock structure; a steering assembly, connected to the deck assembly; a locking assembly, mounted to the second deck, including a locking member movable between a first position and a second position in a second direction and including a second lock structure extending in the first direction and movable with the locking member; wherein when the locking member is located in the first position, the first and second lock structures are interlocked with each other in a male-female manner so that the deck assembly is non-foldable; when the locking member is located in the second position, the first and second lock structures are unlocked from each other so that the deck assembly is foldable.

Abstract: A protector, including: a protective pad, including a first connection portion; and a protective shell, including a second connection portion, one of the first connection portion and the second connection portion being integrally embedded in and integrally interconnected with the other of the first connection portion and the second connection portion, the protective shell being harder than the protective pad.

Abstract: A foldable scooter is provided, including: a deck assembly, including a first deck and a second deck foldably connected and relatively rotatable about a first direction, the first deck including a first lock structure; a steering assembly, connected to the deck assembly; a locking assembly, mounted to the second deck, including a locking member movable between a first position and a second position in a second direction and including a second lock structure extending in the first direction and movable with the locking member; wherein when the locking member is located in the first position, the first and second lock structures are interlocked with each other in a male-female manner so that the deck assembly is non-foldable; when the locking member is located in the second position, the first and second lock structures are unlocked from each other so that the deck assembly is foldable.

Abstract: A transformable skate is provided, including: a shoe body; a frame, connected to the shoe body; at least one first fork support, connected to the frame on which at least one first wheel is mounted; and an adjustable assembly, including a base and at least two second fork supports on which at least two second wheels are respectively mounted, the base being adjustably positioned to and blocked by the frame and the at least two second fork supports being each adjustably positioned to and blocked by the base so that the at least two second fork supports are constructed and arranged to position the at least two second wheels in an inline arrangement or in a parallel arrangement.

Abstract: A transformable skate is provided, including: a shoe body; a frame, connected to the shoe body; at least one first fork support, connected to the frame on which at least one first wheel is mounted; and an adjustable assembly, including a base and at least two second fork supports on which at least two second wheels are respectively mounted, the base being adjustably positioned to and blocked by the frame and the at least two second fork supports being each adjustably positioned to and blocked by the base so that the at least two second fork supports are constructed and arranged to position the at least two second wheels in an inline arrangement or in a parallel arrangement.

Abstract: A detachable seat assembly, including: a handle member, a seat member and a saddle member, the handle member including a mounting portion at a bottom side thereof, the mounting portion including an inner threaded hole at a front side thereof and a buckling member; the seat member and the handle member being detachably connected, the seat member including a mounting hole within which the mounting portion is inserted, the seat member further including a knob and a first hole, the knob including a handle and a threaded section, the threaded section being screwed to the inner threaded hole, the buckling member being disposed through the first hole; the saddle member being mounted on the handle member and the seat member.

Abstract: A push scooter is provided, including: a deck, a wheel, a seat mechanism, a footrest and an adjusting assembly, wheels being disposed at a front end and a rear end of the deck, the footrest being disposed at the front end of the deck, the seat mechanism being adjustably disposed on the deck by the adjusting assembly.

Abstract: A foldable scooter includes a folding control mechanism between a deck assembly and a steering assembly. The folding control mechanism includes a lever which is freely rotatable between a first position and a second position so as to provide an idling rotation stroke. During the idling rotation stroke, the lever does not unlock the folding control mechanism, and the lever unlocks the folding control mechanism when the lever keeps rotating to be over the idling rotation stroke.

Abstract: A foldable scooter includes a folding control mechanism between a deck assembly and a steering assembly. The folding control mechanism includes a lever which is freely rotatable between a first position and a second position so as to provide an idling rotation stroke. During the idling rotation stroke, the lever does not unlock the folding control mechanism, and the lever unlocks the folding control mechanism when the lever keeps rotating to be over the idling rotation stroke.

Abstract: An inline skate includes a skate boot; a front wheel mount secured to a front portion of a bottom of the skate boot; a front wheel rotatably secured to the front wheel mount; a rear wheel mount secured to a rear portion of the bottom of the skate boot; a rear wheel rotatably secured to the rear wheel mount; and two adjustable shock absorbers disposed between the front wheel mount and the rear wheel mount.

Abstract: A bottom structure of a roller skate includes a sole; a frame secured to the sole and including front and rear supports and two hubs disposed on the front and rear supports respectively; a pivotal member disposed in the hub; two spaced sleeves disposed in the hub wherein the sleeves are further partially disposed in the pivotal member and secured to the pivotal member; a shaft passing through the hub, the pivotal member, and a gap between the sleeves, and rigidly secured to the pivotal member; and two enlargements disposed at two ends of the shaft respectively.

Abstract: An inline skate includes a skate boot; a front wheel mount secured to a front portion of a bottom of the skate boot; a front wheel rotatably secured to the front wheel mount; a rear wheel mount secured to a rear portion of the bottom of the skate boot; a rear wheel rotatably secured to the rear wheel mount; and two adjustable shock absorbers disposed between the front wheel mount and the rear wheel mount.

Abstract: A bottom structure of a roller skate includes a sole; a frame secured to the sole and including front and rear supports and two hubs disposed on the front and rear supports respectively; a pivotal member disposed in the hub; two spaced sleeves disposed in the hub wherein the sleeves are further partially disposed in the pivotal member and secured to the pivotal member; a shaft passing through the hub, the pivotal member, and a gap between the sleeves, and rigidly secured to the pivotal member; and two enlargements disposed at two ends of the shaft respectively.

Abstract: An inline skate includes a front wheel mount secured to a bottom of a skate boot; a front wheel rotatably secured to the front wheel mount; a rear wheel mount secured to the bottom of the skate boot; a rear wheel rotatably secured to the rear wheel mount; and a shock absorber disposed between the front wheel mount and the rear wheel mount and including two sets of a positioning member secured to the skate boot; a threaded adjustment member disposed through either the rear or front wheel mount; a first bifurcation element through a biasing member and having one end secured to the adjustment member and the other two ends secured to the biasing member; and a second bifurcation element through the biasing member and having one end secured to the positioning member and the other two ends secured to the biasing member.

Abstract: A kick scooter includes an interconnecting member at a bottom of a deck; two links pivotably attached to two ends of the interconnecting member respectively; two biasing members in the interconnecting member and each having one end urging against one link; and a steering angle adjustment mechanism including a positioning member secured to the interconnecting member, an internally threaded member secured to the deck, an adjustment screw secured to the internally threaded member, a first bifurcation member disposed through a compression spring, the first bifurcation member having one end secured to the positioning member and the other two hooked ends secured to one end of the compression spring, and a second bifurcation member disposed through the compression spring, the second bifurcation member having one end secured to an end of the adjustment screw and the other two hooked ends secured to the other end of the compression spring.

Abstract: A kick scooter includes an interconnecting member at a bottom of a deck; two links pivotably attached to two ends of the interconnecting member respectively; two biasing members in the interconnecting member and each having one end urging against one link; and a steering angle adjustment mechanism including a positioning member secured to the interconnecting member, an internally threaded member secured to the deck, an adjustment screw secured to the internally threaded member, a first bifurcation member disposed through a compression spring, the first bifurcation member having one end secured to the positioning member and the other two hooked ends secured to one end of the compression spring, and a second bifurcation member disposed through the compression spring, the second bifurcation member having one end secured to an end of the adjustment screw and the other two hooked ends secured to the other end of the compression spring.

Abstract: An inline skate includes a front wheel mount secured to a bottom of a skate boot; a front wheel rotatably secured to the front wheel mount; a rear wheel mount secured to the bottom of the skate boot; a rear wheel rotatably secured to the rear wheel mount; and a shock absorber disposed between the front wheel mount and the rear wheel mount and including two sets of a positioning member secured to the skate boot; a threaded adjustment member disposed through either the rear or front wheel mount; a first bifurcation element through a biasing member and having one end secured to the adjustment member and the other two ends secured to the biasing member; and a second bifurcation element through the biasing member and having one end secured to the positioning member and the other two ends secured to the biasing member.

Abstract: A folding kick scooter includes a quick release clamp on top of a head tube and including a lever; a neck having a front end secured to the head tube and including two opposite slot members; a footboard having an upwardly bent front portion pivotably secured to the neck and including two front, opposite cavities; a brake member at a rear portion of the footboard; a lock device including a seat in the neck, the seat having a through hole, and a spring biased pin through the slot members to have two ends releasably anchored in the opposite cavities respectively; a cable extending from the lever and passing through the neck and the through hole of the seat to secure to the pin; a brake member including a hole and a slot element communicating with the hole; and a lever fastening device moveably secured to the brake member.