The present invention provides devices, systems and methods relating to a storage space of a residential consumer after the purchase of an article, and is particularly suitable for ensuring that the storage space to which the carrier delivers the purchase/parcel is a secured space. The secured space includes a receptacle etc. and the cover/door of the receptacle, and a locking mechanism installed on the receptacle and/or the cover/door, which can only be opened by authorized persons/devices. The locking mechanism may include a unique identification and be controlled by a secured device to unlock. The secured device can communicate with access management servers, authorized device or carrier device, etc. The receptacle may be disposed on a folding cart that can be placed outside the house by a lock mode fixing device, an attachment mode fixing device, an embed mode fixing device, a through mode fixing device or an implant mode fixing device. This allows a peace of mind for receiving and keeping the purchase/parcel delivered by a carrier and prevents porch pirates from happening.

A roller component and trolley. The trolley component includes the positioning seat, braking part, and roller that are respectively installed on the guiding shaft. The end of the shaft ring is cam surface, putting or relieving pressured to the end of the rollers when bring rotated, forming the braking structure; the trolley includes front bar, rear bar, bottom bar, handle bar, and flexible bag. The roller components are installed on the two sides of the guiding shaft under the rear bar, providing support and facilitating braking of the trolley.

A collapsible cart assembly having a framework with two brackets. The two brackets have first arms, second arms and third arms. A rear leg frame section is rigidly affixed to the first arms. A front leg frame section that is pivotably connected to the second arms. A handle frame section is pivotably connected to the third arms of the brackets. Slides are disposed on the rear leg frame section. A first set of linkages connect the slides to the front leg frame section. A second set of linkages connect the slides to the handle frame section. The slides and linkages move the front leg frame the handle frame between an open configuration and a closed configuration.

A device has a cuboidal basket portion defining a cavity. A front pair of legs is attached to the basket portion such that the front legs are pivotable about a first axis, and each front leg has a wheel. A rear pair of legs is attached to the basket portion such that the rear legs are pivotable about a second axis, and each rear leg has a wheel. A handle is attached to the basket portion and is pivotable around a third axis. The device has a basket configuration in which the handle is located across and above the basket portion and the legs are collapsed with the wheels located adjacent to a base of the basket portion. The device has a trolley configuration in which the handle is located rearward of the basket portion and the legs are extended for supporting the basket portion.

A foldable cart includes a handle portion, a foldable frame movably connected to the handle, and one or more wheels for rolling on a surface. In an unfolded (in-use or open) condition, the foldable frame constructs a holding-space defining a receiving cavity therein for carrying items, and the action of unfolding the frame automatically deploys wheels to enable immediate use of the cart by the end-user or customer. In a folded (storage or closed) condition, the carts' frame folds to occupy a smaller space in one or more spatial dimensions, and the automatically deployed wheels turn to occupy smaller total space in one or more spatial dimensions. In the folded condition, the cart is easy to store in a small space (e.g. in a small closet, under a bed, etc.) or transport (e.g. in the trunk of an automobile, vehicle, airplane, train, ship with a courier, etc.).

A cart and a locomotion platform comprising a front wheel assembly and a rear wheel assembly, and a payload module articulated to said locomotion platform. The locomotion platform is manipulable between a maneuverable riding position at which the front wheel assembly and rear wheel assembly are deployed at an extended position, and a collapsed position, at which the front wheel assembly and the rear wheel assembly are collapsed, where the front wheel assembly and a rear wheel assembly are configured to automatically collapse upon encountering a barrier of a loading platform extending above the ground, and the front wheel assembly and the rear wheel assembly sequentially manipulate between their respective positions.

An assistive robot includes a manipulator, a base coupled to the manipulator, the base defining a front end and a rear end positioned opposite the front end, the base including a chassis body, a front conveyor assembly positioned at the front end of the base, the front conveyor assembly including a front conveyor defining a conveyor pathway that extends at least partially within the chassis body and a front toe extending outward from the front conveyor, and a rear conveyor assembly positioned at the rear end of the base, the rear conveyor assembly including a rear conveyor defining a conveyor pathway that extends at least partially within the chassis body and a rear toe extending outward from the rear conveyor.

A dual directional gate that allows an object to move freely in one direction over the gate, but limits the removable of one object over the gate in the opposite direction. The gate assembly includes a blocking arm, a cam element and a protruding arm mounted on a rotating driver shaft. The gate assembly also includes a drive shaft parallel to said driver shaft. Mounted on the drive shaft is a latch mounted on the drive shaft with a proximal end that presses against the cam element and prevents rotation of the blocking arm towards the latch. Also mounted on the drive shaft is a biased follower rod with a distal end that contacts the protruding arm when rotated towards the drive shaft. The gate also includes a pivotally mounted sub-assembly coupled to a solenoid. When the solenoid is activated, the sub-assembly rotates which allows the latch to rotate and unblock the blocking arm and allow an object to forcibly move the blocking arm. Movement of the blocking arm causes the gate toy reset.

Collapsible reusable watertight carrying cases are provided in sizes varying from small containers without wheels to large sealable container bins on wheels, to provide large quantities of water or other supplies and cargo. The cases are assembled or in disassembled from a joined flat space-saving configuration to a functioning case and vice-versa. The sides of the cases are erected progressively by hand by interlocking self sealing reciprocating channel and channel engaging members elements at the corners. The panels also disassemble progressively by being manually pulled apart. When folded into a flat storage or shipping configuration, the panels stay together, resisting unfolding by virtue of snaps which are either molded into the panels or bonded to them. The carrying cases are resistant to water, dirt, bacteria, molds, allergens, and inclement weather.

A collapsible shopping cart including a collapsible wheeled chassis and a cargo basket mounted thereto. The chassis has a pair of right and left side front and rear beams pivotably attached to a cargo basket floor panel and provided with rolling wheels, the entire assembly being collapsible under the shopping cart. The shopping cart/basket being formed of four collapsible panels and including a handle that can be collapsed unto the four collapsed panels of the shopping basket.