141results about "Sledge wheels" patented technology

A stabilizer structure for a wheelbarrow is disclosed. The wheelbarrow stabilizer provides better stability to the wheelbarrow as well as includes a more comfortable grip that allows for easier lifting, tilting, and dumping of the wheelbarrow. The wheelbarrow stabilizer further includes geometry and manufacturing to improve its strength and durability.

A portable folding pulling cart includes a pulling cart frame. The pulling cart frame includes a folding frame and a wheel mechanism configured to be mounted on the folding frame. The folding frame includes two first scissor mechanisms arranged at intervals in a left-and-right direction and two second scissor mechanisms arranged at intervals in a front-and-rear direction. Each of the two first scissor mechanisms includes at least two first scissor units, and each of the two second scissor mechanisms includes at least one second scissor unit. An upper part of one of connecting rods of adjacent two first scissor units is bent. The upper ends of the adjacent two first scissor units are respectively pivotally connected to two upper pivoting points, and the lower ends of the adjacent two first scissor units of the at least two first scissor units are respectively pivotally connected to two lower pivoting points.

The present collapsible folding wagon includes a frame that folds. The frame includes right side oblique support members that pivot relative to each other at a right side pivot location and left side oblique support members that pivot relative to each other at a left side pivot location. The right side and left side pivot locations are equidistance from a front end of the frame and a rear end of the frame. A U-shaped handle is pivotally engaged at the right and left side locations and may swing over the wagon from a pull or push position at the front of the wagon to a pull or push position at the rear of the wagon.

A utility cart device is disclosed which is capable of transporting heavy objects. The utility cart comprises a base component that is configured in a rectangular shape with a set of handle bars and a pneumatic tire positioned at each corner. Chucks are provided to keep the device in place. The base component has an open central area sized to retain a large ice chest / cooler and two side, shelf-like areas for retaining additional items. Users load the device and push it with the handle bars, or pull it via securing a cable into the two, spaced-apart D-rings on the front of the device, or tow it via a riding mower, golf cart, ATV or other UTV's with a hitch.

The utility model provides a carrier loader and a folding mechanism and a wheel mechanism thereof, a frame comprises rear feet and a handlebar, the folding mechanism comprises a handlebar fixing rod, the handlebar fixing rod is pivoted to the rear feet, the handlebar is connected with the handlebar fixing rod to enable the handlebar and the handlebar fixing rod to synchronously pivot, and the folding mechanism comprises a folding mechanism and a wheel mechanism, the handlebar fixing rod is provided with a fixing rod locking piece, the fixing rod locking piece can move between a locking position and an unlocking position, and when the fixing rod locking piece moves to the locking position, the fixing rod locking piece is locked on the rear foot so as to prevent the handlebar fixing rod from pivoting relative to the rear foot; when the fixing rod locking piece moves to the unlocking position, the fixing rod locking piece is unlocked relative to the rear foot, so that the handlebar fixing rod is allowed to pivot relative to the rear foot. The carrier loader is convenient to fold and small in size after being folded.

A cart for transporting objects includes a frame longitudinally extending between a first end and a second end and a plurality of wheel assemblies and a guide wheel coupled to the frame. The plurality of wheel assemblies and the guide wheel are configured to facilitate movement of the cart. The guide wheel is moveable into and between a first guide wheel position and a second guide wheel position, and when the guide wheel is in the first guide wheel position, the guide wheel resists movement of the cart in a direction other than in a longitudinal direction.

A hand trailer with multi-piston structure includes a fence assembly, a bottom fork assembly, wheel fixing and disassembling assemblies and a pull rod assembly. The fence assembly is a regular four-sided connection structure, and uses first piston structures and second piston structures as connection nodes, and the first piston structures and the second piston structures are arranged in parallel; a top of each first piston structure is riveted with a bottom of a corresponding second piston structure by a first inclined rod, a bottom of each first piston structure is riveted with a top of a corresponding second piston structure by a second inclined rod. Technical points of the hand trailer with multi-piston structure are that a new folding structure, a new bottom support structure and a new wheel installation structure are adopted, so that a load-bearing capacity and a folding and packing volume of the product are obviously improved.

This invention relates to a foldable electric golf bag cart. When folded, the connecting rods on both sides of the cart frame and the wheels connected to these connecting rods are folded to the sides of the frame. This invention allows the two rear wheels and the connecting rods linking the frame and the rear wheels to be folded to the sides of the frame, effectively reducing the overall size of the folded electric golf bag cart, minimizing its space requirements, and making it more convenient to move and store.

A wheelbarrow is disclosed. The wheelbarrow includes an improved wheel guard, leg arrangement, and stabilizer that require less work to transport, lift, and dump the wheelbarrow. Also disclosed are an improved axle structure and means of assembly for a wheelbarrow.

A stroller handlebar actuator is provided. The handlebar actuator is provided at a handlebar of the stroller and includes cables that are attached to the handlebar actuator at one end and rear wheels of the stroller at another end. The handlebar actuator includes a protruding tab that a user to able to press using one or both thumbs without needing to remove their hands from the outer ends of the handlebar. By pressing the tab, a rotational force is exerted on the handlebar actuator, causing the handlebar actuator to rotate relative to the handlebar. This rotation causes the cables to pull inwards towards the handlebar actuator, thereby unlocking mechanisms provided at the rear wheels. The unlocking of the mechanisms causes the rear wheels to be able to freely rotate about a vertical axis. When the force is removed from the handlebar actuator, the handlebar actuator rotates back to its natural resting position and the cables return back to their original positions, locking the rear wheels.

A castored base for a medical cart, the base comprising: a central hub body with a plurality of legs extending radially outwardly therefrom wherein each leg comprises a socket or sleeve at an outer end of said each leg for connecting a castor to the socket or sleeve, the central hub body comprising an outer side wall extending between an upper and lower portions of the hub, the outer wall of the hub body comprising first and second leg attachment portions that are positioned at diametrically opposed locations on the outer wall of the hub body and wherein a first pair of legs is attached at the first leg attachment portion and a second pair of legs is attached at the second leg attachment portion; wherein at each of the first and second leg attachment portions, a first leg from a respective pair of legs is attached at a first attachment location on the hub body and a second leg from said respective pair is attached at a second attachment location on the hub body and wherein in-use height of the first attachment location is greater than in-use height of the second attachment location.

A stroller frame (100) includes a front leg (10), a bottom tube (30), a rear leg (20), an upper support member (40) and a lower support member (50). The front leg (10), the bottom tube (30), the lower support member (50) and the upper support member (40) are pivotally connected to each other to form a four-bar linkage structure. The rear leg (20) is connected to an end of the bottom tube (30). A lock mechanism (60) is disposed at a pivot joint between the upper support member (40) and the lower support member (50). The lock mechanism (60) is able to lock the upper support member (40) and the lower support member (50) at an expanded angle, such that the front leg (10) is able to be expanded with respect to the bottom tube (30). The lock mechanism (60) is unlocked to release the upper support member (40) and the lower support member (50), such that the front leg (10) is able to be folded with respect to the bottom tube (30).

A system is disclosed including a transporter, having a top load bearing surface or bed, and four wheeled articulating legs, that may be operated by a single user / operator, and can be lowered or raised by changing the lengths or angles of its legs while maintaining the transporter bed level. The legs that may be folded up to be loaded onto or unloaded from a truck bed, or a stationary platform, by a single operator while carrying heavy load. The loading and unloading process is assisted by various safety brakes that prevent accidental slippage of the transporter off the truck bed. The legs' angles are changed using a dual-threaded lead screw. The transporter further includes two edge detectors on the front-end and the rear-end to detect the edge of the truck bed automatically, and prepare the folding of the transporter legs for loading onto the truck bed.

A load moving apparatus 10 has a ground engaging device 14 (such as a wheel) for rotation about a substantially horizontal axis and driveable using a drive member, for example an electric motor (16, F

A robotic surgery cart has a pair of rear wheel assemblies and a pair of front wheel assemblies. A brake assembly for the robotic surgery cart includes a gearbox interposed between and connected to the pair of rear wheel assemblies by rotatable shafts. Elongate actuators extend between and interconnect the rotatable shafts and brake mechanisms for the front wheel assemblies. A pedal lever is rotatably coupled to the gearbox and can rotate clockwise by pressing one portion of the pedal lever and can rotate counterclockwise by pressing another portion of the pedal lever. Rotation of the pedal lever causes the gearbox to rotate the rotatable shafts to substantially lock the pair of rear wheel assemblies, and substantially simultaneously causes a translation of the elongate actuators to actuate the brake mechanisms of the front wheel assemblies, such that the wheels of the front and rear wheel assemblies brake substantially simultaneously.

To provide a wheeled carrying apparatus having a wheel assembly which can be controllably locked and unlocked in a horizontal orientation and can provide better maneuverability.SOLUTION: Provided is a baby carriage apparatus which is a release mechanism, including: a link actuator movable by rotation of a handle frame to engage or disengage a wheel mounting part latch with or from a wheel mounting part; and a cable assembly coupling an operating part provided on the handle frame to the wheel mounting part latch, and in which the operation part is operable to disengage the wheel mounting part latch from the wheel mounting part when the handle frame is in a first position.SELECTED DRAWING: Figure 5

A rolling storage cart with drawers has at least one cart member and a plurality of drawers. The cart member has two side frames, two top edge bars, two bottom edge bars, and a plurality of wheels; each side frame has a main frame with a plurality of drawer tracks. Two ends of each edge bar respectively has an engaging column, and a top end and bottom end of each main frame respectively jackets onto one of the engaging columns of each edge bar. Each wheel has a screw lock for securing onto one of the bottom edge bars. Each drawer is configured to slidably engage two grooves of two opposite drawer tracks.

A control method for a stair climber (1), which comprises: at least one support frame (4), at least one loading plane (5), at least a first sensor adapted to detect one or more physical-geometric features of the transportable element (E), at least one actuator (8) and at least one processing and control logic unit. The method comprises at least one repositioning process comprising at least the following steps: detecting the physical-geometric features of the element (E) arranged on the loading plane (5); analysing the detected features so as to identify the optimal transport inclination; controlling the actuator (8) so that it adjusts the inclination of the loading plane (5). Furthermore, the control method envisages inhibiting the repositioning process when the climber (1) advances along a flight of stairs so as to keep the inclination of the loading plane (5) fixed.

A baby carriage frame 1 which is reversibly transferable from a first frame position, in particular a use position 2, into a second frame position, in particular transport position 3, comprising a first frame part (12) and a second frame part (11), which are foldable in relation to each other, a first locking device (17) arranged on the first frame part (12) for locking a folding position of the first frame part (12) relative to the second frame part (11), and a position transfer device (29) for transferring the first locking device (17) from a first position in relation to the first frame part (12) into a second position in relation to the first frame part (12).

A collapsible wagon can include a base frame; a pair of front wheels coupled to the base frame; a pair of rear wheels coupled to the base frame via a suspension system; a handle coupled to the base frame; a lever hingedly connected to the base frame adjacent to a first end of the wagon; a holder frame hingedly connected to the lever adjacent to a second end of the wagon; a seat back hingedly connected to the lever such that when the seat back is opened, the seat back and the lever rotate into a locked relationship; a release mechanism positioned to enable a user to release the seat back from the locked relationship with the lever; and wherein the lever includes a lever foot pedal positioned and arranged for a user to step on the lever foot pedal to hingedly open the lever relative to the base frame.

A transportable machine, comprises an elongated frame having a top end and a bottom end; a handle disposed on the top end of the frame; a base disposed on the bottom end of the frame, the base and the frame together defining a space configured to receive and support a load; a wheel disposed on the bottom end of the frame; a track coupled to the frame, the track including a roller and an endless belt configured to rotate about the roller; a motor coupled to the roller, the motor operable to drive the endless belt; a power supply providing power to the motor; and a controller coupled to the power supply and the motor. The controller is configured to monitor the power supply, determine when the power supply is insufficient to climb a set of stairs, and in response to determining that the power supply is insufficient to climb the set of stairs, send a signal to alert a user, to shutoff the motor, or both.

A wheel axle (2) configured to be assembled to a panel (5) of a rolling toy (1), comprising a screw (6), a friction cheek (7) fixed against rotation relative to the panel (5), a nut (8) having a threaded tubular portion (82) for passing through a hub of the wheel (3), a central hole (71) in the friction cheek (7) and a hole (52) in the panel (5), a threaded shank (62) of the screw (6) being configured to be screwed into the tubular portion (82) of the nut (8), the central hole (71) of the friction cheek (7) or the hole (52) in the panel (5), and the tubular portion (82) of the nut (8) having additional anti-rotation elements assembled by the axial engagement of the tubular portion (82) of the nut (8) in the central hole (71) of the friction cheek (7) or in the hole (52) in the panel (5) for immobilize the nut (8) against rotation relative to the panel (5). Figure 1

A stroller frame (100) includes a front leg (10), a bottom tube (30), a rear leg (20), an upper support member (40) and a lower support member (50). The front leg (10), the bottom tube (30), the lower support member (50) and the upper support member (40) are pivotally connected to each other to form a four-bar linkage structure. The rear leg (20) is connected to an end of the bottom tube (30). A lock mechanism (60) is disposed at a pivot joint between the upper support member (40) and the lower support member (50). The lock mechanism (60) is able to lock the upper support member (40) and the lower support member (50) at an expanded angle, such that the front leg (10) is able to be expanded with respect to the bottom tube (30). The lock mechanism (60) is unlocked to release the upper support member (40) and the lower support member (50), such that the front leg (10) is able to be folded with respect to the bottom tube (30).

The present invention relates to a child-rearing device with a wheel, and an object of the present invention is to provide a child-rearing device with a wheel capable of reliably preventing twisting of a wire. As a solution of the present invention, a child-rearing tool with a wheel is provided with: a foot part; a universal wheel mechanism; and a brake mechanism. The brake mechanism includes a pair of lock members provided to stop rotation of each of the pair of wheels, an operation member, and a coupling member that couples the lock members and the operation member. The connecting member is provided with: a long member passing through a position different from the rotation axis of the universal wheel mechanism; a pair of moving members connected to the long member and moving by the operation of the operation member; and a pair of driven members provided so as to be rotatable with respect to the pair of moving members and provided with lock member supporting portions that support the shaft portions of the pair of lock members.

A service vehicle and associated equipment suitable for servicing electric vehicles and vehicle batteries. The service vehicle may include a frame with multiple components arranged in a compact configuration. The service vehicle may include multiple support pads that can be adjusted relative to the frame. The support pads may include an overload protection mechanism with a break pin. The service vehicle may include a detachable handle operable to selectively disengage multiple brakes on the vehicle. The service vehicle may include a towing hook suitable for detachably engaging an external towing device.

To provide a wheeled transport device having better maneuverability. [Solution] The device comprises a wheel mounting portion latch 144 configured to unlock the wheel mounting portion from the standing frame, thereby allowing the wheel mounting portion to rotate to change the orientation of the wheel axis, a link actuator connected to the wheel mounting portion latch via a link part 228, which is movable when the handle frame rotates, engaging or disengaging the wheel mounting portion latch with the wheel mounting portion, and a release mechanism comprising a cable assembly that connects an operating part provided on the handle frame to the wheel mounting portion latch, wherein the operating part is operable to disengage the wheel mounting portion latch from the wheel mounting portion when the handle frame is in a first position.

A support assembly for supporting a powered work machine to assist transportation of the machine between locations, the support assembly comprising a connector and a movable support element, wherein the connector is configured for detachably connecting the support assembly to the machine and the movable support element is configured for movably supporting the machine during movement of the machine, and wherein when the movable support element is connected to the machine using the connector and the movable support element moves in accordance with corresponding movement of the machine to stably support the machine during transportation between the locations.