The invention is directed to a golf trolley comprising a main frame for mounting a golf bag, a handle portion, which is pivotably attached to the main frame at a handle joint, a first main wheel attached to a first main wheel mount, wherein the first main wheel mount is pivotably attached to the main frame, pivotable about a swivel axis. For easy folding and unfolding of the golf trolley, the first main wheel mount is displaceable parallel to the swivel axis, wherein the handle portion is mechanically coupled to the first main wheel mount such that folding the handle portion at the handle joint drives the first main wheel mount to rotate about the swivel axis and to move linearly along the swivel axis.

A method of facilitating production of a structure at a construction site, the method including the steps of a) obtaining a mobile apparatus having: a frame; first and second wheels and a steerable third wheel spaced in a fore and aft direction from the first and second wheels and laterally between the first and second wheels; and a platform on the frame defining a first upwardly facing surface that is spaced at least 20″ above the subjacent surface; b) placing at least one building component in a transporting position on the first upwardly facing surface; c) advancing the mobile apparatus from the first location to a second location at or adjacent the construction site; and d) separating the at least one building component from the transporting position at the second location.

A method of facilitating production of a structure at a construction site, the method including the steps of a) obtaining a mobile apparatus having: a frame; first and second wheels and a steerable third wheel spaced in a fore and aft direction from the first and second wheels and laterally between the first and second wheels; and a platform on the frame defining a first upwardly facing surface that is spaced at least 20″ above the subjacent surface; b) placing at least one building component in a transporting position on the first upwardly facing surface; c) advancing the mobile apparatus from the first location to a second location at or adjacent the construction site; and d) separating the at least one building component from the transporting position at the second location.

A mobile weighing apparatus includes a base tubing, a column extending from the base tubing, a handle extending from the column, a plurality of wheels, a weighing platform, and a plurality of load cells coupled to or between the base tubing and the weighing platform. The weighting platform may be suspended from the load cells, such as with wire rope bolts, such that a force applied to the column does not affect weighment of an object on the weighing platform. The apparatus may include a kingpin-less swivel rear wheel, a rear wheel brake to preclude rotation of the rear wheel about an axle of the rear wheel, and an actuator to actuate the rear brake when the rear wheel is in any position over a 360-degree range. The wheels may be positioned adjacent respective corners of a triangularly shaped base tubing, and the apparatus may further include a clinometer.

A mobile weighing apparatus includes a base tubing, a column extending from the base tubing, a handle extending from the column, a plurality of wheels, a weighing platform, and a plurality of load cells coupled to or between the base tubing and the weighing platform. The weighting platform may be suspended from the load cells, such as with wire rope bolts, such that a force applied to the column does not affect weighment of an object on the weighing platform. The apparatus may include a kingpin-less swivel rear wheel, a rear wheel brake to preclude rotation of the rear wheel about an axle of the rear wheel, and an actuator to actuate the rear brake when the rear wheel is in any position over a 360-degree range. The wheels may be positioned adjacent respective corners of a triangularly shaped base tubing, and the apparatus may further include a clinometer.

A foldable golf cart includes an upper frame, a lower frame, a handlebar set, a front wheel set, and two rear wheel sets. The upper frame is mounted on the lower frame. The front wheel set is mounted at a front end of the lower frame. The rear wheel sets are rotatably mounted on the left side and the right side of the rear end of the lower frame respectively. The handlebar set is connected with the upper frame through a first lock mechanism, the upper frame is connected with the lower frame through a second lock mechanism, and the first lock mechanism and the second lock mechanism are connected through a link mechanism. When the first lock mechanism is unlocked, the handlebar set is rotated, and at this moment, the link mechanism drives the second lock mechanism to be unlocked.

A foldable golf cart includes an upper frame, a lower frame, a handlebar set, a front wheel set, and two rear wheel sets. The upper frame is mounted on the lower frame. The front wheel set is mounted at a front end of the lower frame. The rear wheel sets are rotatably mounted on the left side and the right side of the rear end of the lower frame respectively. The handlebar set is connected with the upper frame through a first lock mechanism, the upper frame is connected with the lower frame through a second lock mechanism, and the first lock mechanism and the second lock mechanism are connected through a link mechanism. When the first lock mechanism is unlocked, the handlebar set is rotated, and at this moment, the link mechanism drives the second lock mechanism to be unlocked.

A cart system may include a mounting bracket removably attachable to a cart and configured to receive a portable tool. The mounting bracket can include retainers to engage a front portion of the portable tool, and a clamp assembly rotationally attached to the mounting bracket that can engage a rear portion of the portable tool when the clamp assembly is in a locked position, thereby securing the portable tool to the mounting bracket. A cart system may include a rotatable arm with a wheel on a first end and rotationally attached to a cart at a second end. A circular disk having a first pattern fixed to the arm and a moveable plate with a recess having a second pattern that mates with the first pattern, the plate being moveably attached to the cart. The disk can selectively engage the recess to selectively restrict rotation of the arm.

A cart system may include a mounting bracket removably attachable to a cart and configured to receive a portable tool. The mounting bracket can include retainers to engage a front portion of the portable tool, and a clamp assembly rotationally attached to the mounting bracket that can engage a rear portion of the portable tool when the clamp assembly is in a locked position, thereby securing the portable tool to the mounting bracket. A cart system may include a rotatable arm with a wheel on a first end and rotationally attached to a cart at a second end. A circular disk having a first pattern fixed to the arm and a moveable plate with a recess having a second pattern that mates with the first pattern, the plate being moveably attached to the cart. The disk can selectively engage the recess to selectively restrict rotation of the arm.

A riding vehicle includes: a main body portion supporting a wheel; a seat stay erected on the main body portion and configured to be switched between a riding state in which a person rides and a cart state in which a person does not ride; a seat fixed to an upper side of the seat stay; a frame provided on the seat stay and configured to hold luggage in the riding state and the cart state; a steering stay erected on the main body portion at an interval with respect to the seat stay in a traveling direction; and a handle provided on the steering stay, in which the frame, in the cart state, exists in a region closer to the handle as compared with that in the riding state.