摘要:
The modular plastic shopping cart comprises a wheeled base comprising two opposite vertical side sections each having at least one horizontally projecting member providing a support surface; two side uprights removably connectable to the wheeled base, predetermined cooperating shapes of the wheeled base and the side uprights preventing, when assembled, relative pivoting and sliding movement between the side uprights and the wheeled base; a basket removably connectable to the side uprights, predetermined cooperating shapes of the side uprights and the basket preventing, when assembled, relative pivoting and sliding movement between the basket and the side uprights; first securing device for securing the side uprights to the wheeled base; and second securing device for securing the basket to the side uprights.
摘要:
A wheel shaft structure of a monocycle includes a wheel rim, and a shaft assembly mounted in a center of the wheel rim. The shaft assembly includes a wheel shaft passed through the wheel rim, two opposite single-direction bearings symmetrically mounted on the wheel shaft and received in the central hole of the wheel rim, and two opposite double-direction bearings symmetrically mounted on the wheel shaft and received in the central hole of the wheel rim.
摘要:
A caster for a baby carriage 25 is composed of a caster holder 30 mounted to a front leg 12 of a baby carriage 10; a caster column provided at the caster holder 30 and having a flange shape portion 32a at its lower end, and the caster bearing member 36 slidably and rotatably mounted to the caster column 32 and supporting a front wheel 35 at one side. Tapered surfaces 32b, 36c that are inclined toward the circumferential direction and engage each other, are provided on a top surface 32c of the flange shape portion 32a of the caster column 32 and a downward surface 32d of the caster bearing member 36, respectively. A spring 37 is provided between the caster holder 30 and the caster bearing member 36 to compress the caster bearing member in the direction toward the flange shape portion 32a of the caster column 32.
摘要:
A resilient anti-tip wheel suspension includes a wheel coupled to a first mounting bracket. A second mounting bracket is adapted to be rigidly mounted to a wheelchair. Upper and lower bars each have front and rear ends that are pivotally connected to the second mounting bracket and the first mounting bracket, respectively, so as to form a parallelogram configuration.
摘要:
A bicycle rim comprises a radially outer peripheral part, a radially inner peripheral part, at least one sidewall, and at least one cover member. The at least one side wall radially extends between the radially outer peripheral part and the radially inner peripheral part. The at least one side wall comprises at least one opening. The at least one cover member covers the at least one opening, and the at least one cover member comprises a metallic material.
摘要:
Improvements are disclosed regarding the way in which vehicle wheels are designed and assembled, including ultralight, airless vehicle wheels adapted for mounting on a rim to receive a tire. One or more flexible ring-shaped tendons are disposed over the rim. A stuffer component is disposed over the tendons, and the wheel is disposed over the stuffer. A cover is bolted onto the rim holding the stuffer and tendons in position. Importantly, the tendons, stuffer and cover are all installed onto the rim from the outside toward the vehicle, thereby easing installation and maintenance. The invention may be adapted for all-terrain vehicles, and the wheel may have diameter on the order of 7 inches, 14 inches, or any other appropriate dimensions.
摘要:
A wheel for a non-motorized vehicle (e.g., a shopping cart) can include a housing assembly and a tread assembly. The housing assembly can be configured to sealingly house electronics or other components. The tread assembly can removably mate with the housing assembly such that the electronics or other components remain closed and/or sealed within the housing assembly when the tread assembly is mated or unmated with the housing assembly.