2003results about "Castors" patented technology

A stand is for moving an umbrella on a surface. The stand includes a base assembly to receive the umbrella and being over the surface, and arms. Each arm has a proximal end coupled to the base assembly, and a distal end extending outwardly from the base assembly. The stand also includes wheels respectively coupled to the distal ends of the arms, and supports coupled to the base assembly and extending outwardly from the base assembly, each of the supports has a pivot point for a respective one of the arms. The stand includes an actuator assembly coupled to the base assembly and configured to cause the base assembly to switch between a first stationary state and a second movable state.

A wheel assembly is composed of multiple wheels, each featuring a hub with spokes and a main axle bore, and cross-roller sub-assemblies that include symmetrical axles and solid bushings, as well as peripheral rollers. The cross-roller sub-assemblies are overmolded with the wheel hub to form a peripheral axle ring. A method of assembling the wheel assembly involves creating the cross-roller sub-assemblies by overmolding the solid bushings with peripheral rollers, and then placing these sub-assemblies in a mold to form the peripheral axle ring. Alternatively, the pre-roller assemblies may be overmolded directly with the wheel hub to form the peripheral axle ring.

A removable wheel assembly includes a mounting base, a caster assembly and a detachment mechanism. The mounting base is provided with an insertion hole and a transverse guide groove communicated with the insertion hole. The caster assembly includes an insertion shaft, a wheel bracket, a rotating wheel and a housing. The insertion shaft includes a first end portion, and the first end portion is provided with a first engagement portion. The wheel bracket is connected to the insertion shaft. The rotating wheel is mounted on the wheel bracket. The housing includes a first housing and a second housing engaged with each other, and both the first housing and the second housing cover an outer side of the rotating wheel. The detachment mechanism includes a sliding member slidably disposed within the transverse guide groove and an elastic member connected to the sliding member.

The invention discloses a heat preservation box and processing equipment thereof, and belongs to the technical field of heat preservation boxes. The heat preservation box comprises a box body and a box cover, the box body is formed by wrapping a heat preservation layer with an inner shell and an outer shell, and the heat preservation layer is wrapped with a box cover shell. An aerogel groove and a vacuum plate groove which are overlapped are formed in the heat preservation layer and filled with aerogel particles and a vacuum heat insulation plate respectively, and the surface of the heat preservation layer is sprayed with a nanometer aerogel coating and provided with a reflecting film. The box body is connected with the box cover through a supporting hinge, and is provided with a supporting piece, a roller, a limiting sinking groove, a flow guide channel and a residual volume space measuring system. The processing equipment comprises a bracket, a rotary power source, a rotary platform, a vibration unit and a filling device, and can realize uniform filling and compaction of aerogel particles. The problems that a traditional heat preservation box is poor in heat preservation performance, pressure is accumulated, and transportation is inconvenient are solved, and the heat preservation box is suitable for cold-chain transportation and other scenes.

A hub motor includes a housing rotatably disposed to a first shaft and a second shaft, and a motor installed in the housing and having a stator and a rotor. A reduction mechanism is installed in the housing, including a gear shaft connected with the rotor, a fixed bracket connected with the stator, a movable bracket disposed on the gear shaft and the second shaft, a first ring gear disposed to the fixed bracket, a second ring gear disposed to the housing, multiple first planet gears disposed to the movable bracket and meshed with the gear shaft and the first ring gear, and multiple second planet gears disposed to the second shaft and meshed with the movable bracket and the second ring gear. By 10 inserting a hollow tube into the first shaft, the gear shaft, the movable bracket, and the second shaft, the waterproof and dustproof performance can be enhanced.

Provided are a vehicle control method, a multi-purpose vehicle, and a garden work vehicle. The multi-purpose vehicle includes a drive mechanism, a control mechanism, and an auxiliary control mechanism. The auxiliary control mechanism includes: a control state sensing component, configured to determine a control state of a user with respect to the control mechanism; a traveling state sensing component, configured to determine the traveling state of the multi-purpose vehicle, the traveling state including a straight-line traveling state and a non-straight-line traveling state; and a calibration controller component, configured to determine that the multi-purpose vehicle is traveling abnormally in response to a mismatch between the traveling state and the control state. The calibration controller component is further configured to adjust, in response to determining that the multi-purpose vehicle is traveling abnormally, the operating state of the drive mechanism to match the traveling state with the control state.

An omni wheel including a hub and a roller assembly. The hub includes a disk assembly. The roller assembly includes a plurality of rollers. The plurality of rollers are disposed on the disk assembly. The plurality of rollers each comprise a wider portion and a narrower portion connected to a side of the wider portion so that a step is formed between the wider portion and the narrower portion.

A caster assembly that includes a caster wheel, a lock member, a pedal, and a position sensor. The lock member can engage the caster wheel. Movement of the pedal towards a depressed position can cause engagement of the lock member against the caster wheel to resist or prevent rotation of the caster wheel. Movement of the pedal towards a released position can separate the lock member from the caster wheel to permit rotation of the caster wheel. The position sensor can detect a position of the pedal.

A mobile vehicle includes: a vehicle body unit; a plurality of vehicle wheel parts; a first driving part configured to be connected to the vehicle wheel parts, and be able to rotate the vehicle wheel parts around a first rotation axis as its rotation center in a first rotation direction; a second driving part configured to connect the vehicle body unit and the first driving part, and be able to rotate the vehicle wheel parts and the first driving part around a second rotation axis as its rotation center in a second rotation direction; and a control unit configured to be disposed in the vehicle body unit and be able to control the first driving part and the second driving part. The vehicle wheel part includes a plurality of sub-vehicle wheel parts that are able to rotate in a third rotation direction different from the first rotation direction.

A wheel assembly for use with a trailer jack includes an outer shell defining a main volume. The wheel assembly may further include a main ball configured to be at least partially contained within the main volume of the outer shell and to contact a ground surface. The wheel assembly may further include a bearing coupled between the main ball and the outer shell and configured to allow motion of the main ball relative to the outer shell. The wheel assembly may further include a coupler configured to couple the outer shell to a shaft of a trailer jack. The wheel assembly may further include a lock configured to retain the main ball in place relative to the outer shell.

The utility model discloses a high-adaptability walking mechanism of a wheel-foot type robot, which relates to the technical field of mobile robots and comprises a base mechanism, a transmission mechanism is arranged on the top surface of the base mechanism, a connecting rod mechanism is arranged on the side surface of the base mechanism, and a damping mechanism is arranged at the bottom end of the connecting rod mechanism. The seat mechanism, the transmission mechanism and the connecting rod mechanism are arranged and matched with one another, so that the device can easily cross an uneven road surface, a transmission motor only needs to be started, an output shaft of the transmission motor drives a second transmission wheel to rotate, and then a transmission belt in transmission connection with the outer wall of the second transmission wheel is driven; and then a first transmission wheel in transmission connection with a transmission belt rotates, then a rotating rod fixedly connected with the first transmission wheel rotates, then a small sliding block on the inner wall of a first connecting rod slides in a sliding groove formed in the inner wall of the sliding block, meanwhile, the sliding block is driven to slide in the sliding groove, and then the whole device can move on the uneven road surface.

A cart transport apparatus according to an embodiment includes: a driving part including a plurality of omnidirectional wheels; a driven part including a fixing part configured to fix a cart, the driven part being coupled to the driving part; an information acquisition part configured to read information regarding the cart from an information storage part provided in the cart; and a controller configured to calculate, from the information regarding the cart read by the information acquisition part, a turning center of the cart transport apparatus in a state in which the cart is fixed.

The invention relates to the technical field of hub bearings, in particular to a hub bearing. The hub bearing comprises an outer ring unit, an inner ring unit, a rolling body, a first dynamic sealing unit and a second dynamic sealing unit. The outer ring unit comprises an outer ring main body and a threaded connection part; the inner ring unit comprises a first inner ring and a second inner ring; the first inner ring comprises an inner ring main body and a flange; the flange and one axial end of the inner ring main body are integrally formed; the inner ring main body and the second inner ring are positioned in the outer ring main body; the end face, facing the flange, of the outer ring body is a first collision face. The end face, facing the outer ring body, of the flange is a second collision face. A movable gap is formed between the first collision surface and the second collision surface; when the axial acceleration of the inner ring unit is 0, the movable clearance is 0.3-0.5 mm; the movable gap is gradually reduced in the direction away from the axis of the hub bearing. Therefore, the problems that the rolling body is subjected to impact loading force for a long time, so that the raceway is subjected to dent deformation, and abnormal sound is generated are solved.

A caster wheel brake system for a mobile support system such as a cart or other wheeled structure is operable to selectively secure caster wheels against rolling rotation. The system includes a caster wheel assembly and a braking mechanism mounted nearby. A pair of brake actuation inputs, such as handles or levers, can be secured to the cart and independently operated to rotate a rotator link, which in turn rotates a brake-actuating link. Rotation of the brake-actuating link deactivates the braking mechanism to allow rolling rotation of the caster wheels. Optionally, the operation of one of the handles to deactivate the braking mechanism has no effect on the other handle.

A caster having a spring feature configured to compress along the stem of the caster when subject to load. The spring achieves maximum compression when subjected to a maximum specified load value. One or more casters may be used in tandem with a jackstand apparatus. When the jackstand is presented without any additional force, the combined spring force of all casters utilized is sufficient to support the weight of the jackstand without achieving maximum compression. When subject to a sufficiently large additional force, each of the springs will achieve maximum compression, and the jackstand apparatus will interact with the supporting terrain directly, resulting a direct transfer of additional load to the terrain through the jackstand apparatus. Some embodiments may comprise a distinct jackstand and cart configuration. Some embodiments may comprise an integrated configuration.

A wheel suspension for a vehicle includes: - a guide tube (10) that can be mounted on or is mounted on a vehicle chassis in an operating position or is permanently connected to or belonging to a vehicle chassis and assumes the operating position, which in its operating position has a guide tube axis extending vertically or inclined relative to a vertical direction according to a nominal guide tube angle with respect to a vehicle standing on a horizontal flat surface; - a wheel fork (3) having two fork legs (4), which is mounted on the vehicle chassis at least at one bearing area at least by means of the guide tube (10) in its operating position; - Bearing devices at free end areas of the fork legs for the rotary bearing of a wheel (2) between them. It is proposed that the wheel fork (3) is or can be mounted in a relatively movable manner radially outside on the guide tube (10) by means of its bearing area (5, 6).

A wheeled childcare device includes: a body frame; a caster mechanism including a caster holding member and a caster pivot member and configured to allow a front wheel or a rear wheel to swivel; a caster lock member configured to assume a lock position and an unlock position; a first biasing member configured to bias the caster lock member toward the lock position; and a moving member provided in the caster holding member and movable between a first position and a second position. The first position is a position in which the caster lock member is moved to the lock position, and the second position is a position in which the caster lock member is moved to the unlock position.

A walking vehicle including a chassis and a plurality of wheel-leg components is described. The plurality of wheel-leg components are collectively operable to provide wheeled locomotion and walking locomotion.

A load handling device is disclosed for lifting and moving containers stacked in a storage system having a grid structure. The load handling device includes a container receiving space; a lifting mechanism arranged to lift a container; a vehicle body; a wheel assembly arranged to support the vehicle body, the wheel assembly having a first set of wheels and a second set of wheels; and a drive mechanism for selectively driving rotation of the first set of wheels and the second set of wheels. Each wheel includes a wheel positioning mechanism configured to rotate the wheel about a respective second axis of rotation to selectively lower or raise the first set of wheels or the second set of wheels to selectively engage or disengage the first set of wheels with a first set of grid members or the second set of wheels with a second set of grid members.

A luggage caster for maintenance and replacement includes a wheel frame, a vertical shaft, and trolley wheels in a clearance fit with the wheel frame. The vertical shaft is configured to rotate axially within a vertical shaft hole of the wheel frame. a bottom end of the vertical shaft defines a riveting hole for forming a riveting flange. A top end of the vertical shaft is provided with a limiting plate that cooperates with the riveting flange to achieve an axial limitation of the vertical shaft in the vertical shaft hole. The top end of the vertical shaft is further provided with an installation head that protrudes from the limiting plate. The installation head is configured to insert into a shaft hole of a luggage bottom support. The riveting hole of the vertical shaft extends axially along the vertical shaft to define an anti-rotation tool hole.

A wheel suspension for a vehicle comprises: - a guide tube (10) which assumes an operating position and, in the operating position, can be mounted or is mounted on a vehicle chassis or is fixedly connected thereto or is part thereof and which has, in the operating position on or as part of the vehicle chassis with respect to a vehicle standing on a level horizontal underlying surface, a guide tube axis extending vertically or at an incline with respect to a vertical direction in accordance with a target guide tube angle; - a wheel fork (3) which has two fork blades (4) and is mounted on the vehicle chassis in at least one mounting region at least by means of the guide tube (10) in the operating position thereof; and - mounting devices, at free end regions of the fork blades, for rotatably mounting a running wheel (2) between the fork blades. According to the invention, the wheel fork (3) is relatively movably mounted or can be relatively movably mounted radially outside on the guide tube (10) by means of the mounting region (5, 6) of the wheel fork.

A robotics corner module includes a steering drive unit, a traction drive unit, and an intermediate assembly. The steering drive unit includes an output shaft configured to be rotationally driven about an output shaft axis. The traction drive unit includes a wheel configured to be rotationally driven about a wheel hub axis. The intermediate assembly extends between the steering drive unit and the traction drive unit and includes a support structure and a cooling system. The support structure is operably coupled to the output shaft and the traction drive unit, such that rotation of the output shaft about the output shaft axis drives rotation of the intermediate assembly and the traction drive unit about the output shaft axis. The cooling system includes a radiator mounted to the support structure and a fan mounted to the support structure and configured to deliver air to the radiator.

A bassinet includes a base, a column assembly rotatably connected to the base at a first end of the column assembly, an arm rotatably connected to a second end of the column assembly, a tub frame pivotably connected to the arm, an infant tub retained within the tub frame, the infant tub including a front wall, a back wall, and two side walls and having areas of reduced height along the front wall and at least one of the side walls to provide enhanced access to the infant located within the infant tub, and an insert configured to reversibly fit within an interior of the infant tub.

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.

The utility model discloses electric hoisting equipment which comprises a framework, the framework comprises a first wheel carrier, a second wheel carrier, a first connecting plate, vertical rods, sleeve rods and a second connecting plate, the first wheel carrier and the second wheel carrier are Z-shaped and are connected through the first connecting plate, the first connecting plate is provided with at least two vertical rods, and the sleeve rods are sleeved on the vertical rods. Each vertical rod is movably sleeved with a sleeve rod; the back plate is fixedly connected to the outer part of the sleeve rod in a sleeving manner; the bearing plate is connected with the back plate; one end of the handrail is connected with the back plate through a rotating mechanism; the driving mechanism is mounted on the surface of the first connecting plate; and the roller groups are respectively mounted at the end parts of the first wheel carrier and the second wheel carrier. Through the arrangement of the two vertical rods, when the sleeve rod and the bearing plate move up and down, the stability in the vertical direction can be improved, the first wheel frame and the second wheel frame are designed to be in a Z shape, when the equipment steers, the stability in the horizontal direction can be further improved, and side inclination can be effectively prevented.

An apparatus, system and method capable of providing a stabilizing drive system for a robotic vehicle. The apparatus, system and method may include at least a robot body base; at least two drive wheels within the robot body base; a processing system having non-transitory computing code associated therewith which, when executed by the processing system, causes to be driven the at least two drive wheels; and a plurality of ball casters within the robot body base, wherein the ball caster are positioned relative to the robot base and to the at least two drive wheels so as to lower a center of gravity of the robot and provide stabilization of the driving.

A lift device includes a base, a mast assembly including a first mast section coupled to the base and a second mast section configured to move vertically relative to the first mast section, a platform assembly pivotally coupled to the second mast section, a guardrail assembly, a pivot assembly pivotally coupling the guardrail assembly to the second mast section, and a link arm pivotally coupled between the pivot assembly and the platform assembly, wherein the link arm links pivotal movement of the platform assembly to pivotal movement of the guardrail assembly so that the platform assembly and the guardrail assembly simultaneously pivot between a working position and a folded position.

The invention relates to a wheel bearing arrangement, comprising a hub (10), a wheel bearing (20) arranged on the hub (10), a wheel carrier (30) to which the wheel bearing (20) is fixed by means of a wheel bearing outer ring (21), comprising a synchronous universal joint (40) which is axially clamped to the hub (10) by means of a planar tooth meshing device, and comprising a sealing ring (50) which surrounds and seals the planar tooth meshing device on the radially outer side. A sealing ring is pre-assembled on the constant velocity joint and engages with the hub outside the force flow of the wheel bearing in the assembled state of the wheel bearing arrangement, the sealing ring providing a contactless pre-seal for the wheel bearing while interacting with the wheel carrier.

The invention relates to the technical field of hub bearings, in particular to a hub bearing with a variable-curvature raceway. The invention discloses a wheel hub bearing with a variable-curvature raceway. The wheel hub bearing comprises an outer ring unit, an inner ring unit and a plurality of balls, the outer ring unit comprises a bearing outer ring; an outer ring inner side channel and an outer ring outer side channel are formed in the bearing outer ring; the inner ring unit comprises an inner ring flange and a matched inner ring; the inner ring flange is provided with a flange plate channel; the matching inner ring is provided with an inner ring channel; one part of the balls are positioned between the inner ring channel and the inner side channel of the outer ring, and the other part of the balls are positioned between the flange plate channel and the outer side channel of the outer ring; wherein the axis of the bearing outer ring is located in the reference section; in the reference cross section, the outer ring inner side channel is provided with a first cross section line; the first section line comprises a first curve and a second curve; the curvature radius of the first curve is greater than that of the second curve; therefore, the problem of how to consider the friction torque and the axial bearing capacity to prolong the service life of the hub bearing is solved.

The present invention provides a structure for assembling a snap-on caster of a draw-bar case. The draw-bar case includes a case body and four caster assemblies. The caster assembly includes a caster and an upper positioning cover. The caster includes a mounting pedestal and a universal wheel. Four sides of the case body are each provided with an installation slot. Several insertion plates are disposed on an inner side surface of the upper positioning cover. The installation slot is penetrated to form a through hole that is disposed corresponding to the insertion plate. The installation pedestal is provided with a buckle plate that is disposed corresponding to the through hole. The buckle plate is penetrated to form an insertion hole. Both sides of one end of the insertion plate are each provided with an inverted buckle. The insertion plate is snap-fitted onto the insertion hole after passing through the through hole and the insertion hole sequentially.