A child transport carrier includes an upper frame member having a forward end and a rear end and a rear frame coupled to the upper frame member. The rear frame includes a lower rear frame member, an upper rear frame member having an upper end fixedly coupled to the rear end of the upper frame member, and a first joint assembly coupling the lower rear frame member and the upper rear frame member. The rear frame is configured to fold between an unfolded in-use position and a folded storage position. The upper frame member and the upper rear frame member are fixed relative to each other. The first joint assembly is disposed longitudinally rearward of the forward end of the upper frame member and longitudinally forward of the rear end of the upper frame member in the unfolded in-use position.

A suspension system is provided for a sidecar of a motorcycle, which includes a sidecar frame and a wheel with an axle. The suspension system can include, a support frame pivotally secured to the sidecar frame, and a trailing link pivotally secured to the support frame at a leading end of the trailing link. A trailing end of the trailing link can be configured to trail behind the leading end of the trailing link relative to a direction of forward motion of the sidecar. The trailing end of the trailing link being configured to rotatably support the axle of the wheel.

A bicycle skewer for supporting a wheel of a bicycle between bicycle forks on opposite sides of the supported bicycle wheel comprises a skewer body having first and second end portions and a longitudinal axis about which a supported bicycle wheel pivots. In accordance with an embodiment, a first coupler is coupled to the first end portion of the skewer body and a second coupler is coupled to the second end portion of the skewer body; the bicycle wheel and forks being positioned between the first and second couplers. In addition, each of the first and second couplers comprise exterior surfaces at least a portion of which are spherical.

A foldable frame structure for trailer so designed that the distance between the pivot connection center of each pivot holder and the left/right side frame and the topmost edge of the left/right frame bar of the bottom frame is greater than the distance obtained by deducting the width of the collapsed bottom frame from the height from the left/right frame bar of the bottom frame to the topmost edge of the left/right side frame. Thus, the left side frame and the right side frame can be individually collapsed and closely attached to the bottom frame in one step. The present invention can greatly save the transportation volume and simplify the folding structure and folding action, and thus achieve the purpose of user's convenient collection and carrying.

A foldable frame structure for trailer so designed that the distance between the pivot connection center of each pivot holder and the left/right side frame and the topmost edge of the left/right frame bar of the bottom frame is greater than the distance obtained by deducting the width of the collapsed bottom frame from the height from the left/right frame bar of the bottom frame to the topmost edge of the left/right side frame. Thus, the left side frame and the right side frame can be individually collapsed and closely attached to the bottom frame in one step. The present invention can greatly save the transportation volume and simplify the folding structure and folding action, and thus achieve the purpose of user's convenient collection and carrying.

A multifunctional sidecar for a motorcycle comprises a frame detachably provided at a side of the motorcycle and having main wheel at a side thereof, a base plate rotatably coupled to a first side of the frame and folded in an upright position or unfolded to overlap a top of the frame, a side plate rotatably coupled to a second side of the frame and folded in an upright position or unfolded to extend from the second side of the frame, a rear plate rotatably coupled to a rear portion of the frame and folded in an upright position or unfolded to extend from the rear portion of the frame, supports supporting the side plate and the rear plate when the side plate and the rear plate are in the unfolded positions, and a coupling device connecting the sidecar with the motorcycle, a buoyant seating member having a seat and detachably provided on the top of the frame; as the side and rear part of the sidecar may be unfolded and supported by supports, the sidecar may be utilized as a camping deck or bench; and the main body may be utilized as a carrier or storage, with the seating member removed and the bottom plate installed.

A multifunctional sidecar for a motorcycle comprises a frame detachably provided at a side of the motorcycle and having main wheel at a side thereof, a base plate rotatably coupled to a first side of the frame and folded in an upright position or unfolded to overlap a top of the frame, a side plate rotatably coupled to a second side of the frame and folded in an upright position or unfolded to extend from the second side of the frame, a rear plate rotatably coupled to a rear portion of the frame and folded in an upright position or unfolded to extend from the rear portion of the frame, supports supporting the side plate and the rear plate when the side plate and the rear plate are in the unfolded positions, and a coupling device connecting the sidecar with the motorcycle, a buoyant seating member having a seat and detachably provided on the top of the frame; as the side and rear part of the sidecar may be unfolded and supported by supports, the sidecar may be utilized as a camping deck or bench; and the main body may be utilized as a carrier or storage, with the seating member removed and the bottom plate installed.

A bicycle trailer is disclosed which can be reconfigured to act as a bicycle transport unit. When the trailer is in use towed behind a bicycle, its internal volume for receiving items to be transported is too small to accommodate a bicycle, even if the bicycle is broken down into its major parts. In accordance with the invention, the trailer has an internal frame (1 to 7), parts of which can be telescopically arranged in others to enable the frame to be enlarged or reduced in size, and an external shell (35, 36, 40) with foldable sections. The base of the frame (1) may have wheels (15, 17) enabling it to be rolled along when used as a carrying case. The trailer wheels (11) may be detachably mounted to either side of the frame base (1). A towbar (20) may be detachably fixed to the frame base (1).

A bicycle trailer is disclosed which can be reconfigured to act as a bicycle transport unit. When the trailer is in use towed behind a bicycle, its internal volume for receiving items to be transported is too small to accommodate a bicycle, even if the bicycle is broken down into its major parts. In accordance with the invention, the trailer has an internal frame (1 to 7), parts of which can be telescopically arranged in others to enable the frame to be enlarged or reduced in size, and an external shell (35, 36, 40) with foldable sections. The base of the frame (1) may have wheels (15, 17) enabling it to be rolled along when used as a carrying case. The trailer wheels (11) may be detachably mounted to either side of the frame base (1). A towbar (20) may be detachably fixed to the frame base (1).

A bicycle trailer has a frame with a hitch portion that comprises first and second yoke arms with respective first end and second end portions. Skewer engagement latches can be coupled to the second end portions of the yoke arms. The skewer engagement latches can have stops that pivot between stop open and closed positions. In the stop open positions, respective end portions of a bicycle skewer can inserted into or separated from the latches. In the stop closed positions, respective end portions of the bicycle skewer, if positioned in respective latches, are retained coupled to the yoke arms by the latches. The stops are moved between open and closed positions by an actuator, such as by respective cable portions attached to the stop portions. Desirably the actuator simultaneously moves the stops between the open and closed positions. The latches can have skewer engagement surfaces that are least in part spherical.