2771 results about "Caster" patented technology

A convertible stroller is provided that includes a shell configured to support an infant. A pair of rear legs are pivotally coupled to the shell and a pair of front legs are pivotally coupled to a respective rear leg. The rear legs and the front legs are retractable to a first transport condition, and deployable away from the shell to a second transport condition usable as a stroller. A front wheel may be coupled to each front leg that is rotatable about a horizontal axle in the second transport condition. Each front wheel has a post that acts as an axis of rotation in the second transport condition. A cam sleeve is provided that is movably disposed on each post. In a first position, the cam sleeve allows rotation about the axis of rotation, and in the second transport condition prevents rotation of the front wheel about the axis of rotation.

A collapsible trolley with a guardrail includes a rack assembly, a pull handle assembly provided in front of the rack assembly, a push handle assembly fixed behind the rack assembly, a caster assembly provided at a bottom of the rack assembly, and a canopy assembly provided above the rack assembly. The rack assembly includes a bottom rack, a front frame and a rear frame respectively provided at two ends of bottom rack, and side frames respectively provided at left and right sides of the bottom rack. The front frame is connected to the pull handle assembly, and the rear frame is connected to the push handle assembly. The collapsible trolley with the guardrail avoids the problems that the prior trolleys are prone to falling under load and have small holding strength. The collapsible trolley with the guardrail is simple and labor-saving to fold up, and provides a large usable volume.

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 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 relates to the technical field of double-roller cast rolling, and provides a roller gap control method. According to the method, in the casting and rolling process, controlled floating of a roll gap is achieved under the condition of constant opening degree by controlling the overall movement of a driving device and a roll system and the relative movement between the driving device and the roll system, and therefore the material updating process in a molten pool is stabilized. Different from a traditional technical scheme, the method can keep the two roller bodies and the side sealing device static relative to the ground in the roller gap floating period, the thickness fluctuation of the green body is effectively avoided, the abrasion rate of the side sealing plate is reduced, and therefore the stability of the cast-rolling process and the quality of the green body are improved.

A trailer jack and transport system providing improved rolling and steerable motion to sport, recreational and utility trailers, when operating on diverse kinds of ground surfaces, including pavement, dirt, sand, and mud, without use of caster-style wheels. The trailer jack and transport system employs a spherical load-bearing transport ball supported within a frame assembly and configured to allow the spherical wheel to freely rotate in any orientation, on ground surfaces of a diverse nature during system operation.

A swing wall assembly is provided. The assembly may have a fixed wall attached to a supporting surface of the space. A geared hinge connects a swing wall to the fixed wall so that the swing wall may be offset from the supporting surface by a caster distance. A caster assembly may protrude from a lower portion of the swing wall by the caster distance so as to be moveable along the supporting surface. The swing wall may be connected to a header by way of a self-aligning lock. A sliding lock may connect the swing wall and or a pod wall that can be operatively associated with the swing wall opposite the fixed wall. The pod wall allows the swing wall assembly to selectively close off different types of spaced within an enclosed space of a recreational vehicle.

A cart provided with a brake assembly capable of synchronously braking two casters having a cart frame. Two front casters and two rear casters are symmetrically arranged at the bottom of the cart frame. A brake mechanism is arranged on the two rear casters and having a connecting tube, a pedal mounted on the connecting tube and two brake assemblies mounted at ends of the connecting tube respectively. Two ends of the connecting tube are connected to the two brake assemblies respectively. The pedal drives the connecting tube to rotate, and limit portions of the brake assemblies abut against limit pieces on the rear casters to bake the rear casters. The two rear casters can be braked synchronously, thus improving the braking efficiency of the cart in the moving process.

The technical scheme provides a concrete vibrating device for road construction. The concrete vibrating device for road construction comprises a vibrating temper mill and a walking crawler belt, the control panel is arranged on a handrail on one side of the main frame; the vibrating temper mill is connected with the walking crawler belt through a suspension chain hook; a main machine frame is arranged in the vibration temper mill, walking trundles and walking sliding plates are arranged on the two sides of the lower portion of the main machine frame, a vibration rod through hole and an impeller shaft through hole are further formed in the main machine frame, a lifting support and a lifting plate are arranged above the vibration rod through hole, and a vibration mechanism is arranged on the lifting plate. A vibrating rod is arranged in the vibrating mechanism, and the vibrating rod is lifted and vibrated along the axis of a vibrating rod through hole through a lifting driving unit; the trowelling impeller is coupled in the impeller shaft through hole through an impeller shaft rod arranged at the upper part of the trowelling impeller; and the trowelling impeller rotates through the trowelling driving unit. The walking crawler belt drives the vibrating and leveling machine to walk, and the vibrating and leveling machine completes vibrating and leveling of a concrete pouring road surface; labor cost is reduced, and construction efficiency is improved.

A low-profile motorcycle dolly comprises a pair of parallel rods and at least one motorcycle wheel support assembly. The motorcycle wheel support assembly comprises a pair of caster subassemblies and a motorcycle wheel plate. Each caster subassembly attaches to one of the rods respectively. Each caster subassembly comprises a caster bracket. The caster bracket attaches to the respective rod and is provided with a pedal assembly. The motorcycle wheel plate is connected between the caster brackets of the pair of caster subassemblies. The pedal assembly comprises a pedal and a pedal shaft. Each caster subassembly further comprises a caster mounting plate pivotably mounted onto the caster bracket. The caster mounting plate comprises at least one caster wheel. The pedal is configured to be operated to rotate downward to push down the caster mounting plate, and upward to allow the caster mounting plate to be lifted.

A caster has a mount, a housing, a horn rotatable relative to the housing about a swivel axis, spaced apart forks on lateral sides of the horn, a wheel assembly disposed between the forks, a swivel locking ring disposed in the horn, and a braking member having a bridging portion and first and second plunger portions projecting away from the bridging portion. The bridging portion has a tooth rack extending outward. The first and second plunger portions project from the bridging portion in a direction opposite the tooth rack and have brake blocks. A brake lever arm is pivotally connected with the housing and movable between engaged and disengaged positions. An engagement pin extends through the housing and the interior of the horn and has first and second ends. The first end is connected with the brake lever arm, and the second end abuts the braking member bridging portion.

A cleaner head for a vacuum cleaning appliance includes a housing which defines a suction chamber. The suction chamber has a suction inlet through which air enters the suction chamber, and a suction port through which air exits the suction chamber. The cleaner head includes a plurality of casters for supporting the cleaner head. Each caster is rotatable relative to the housing about a first axis which is perpendicular to the suction inlet. Each caster is also rotatable relative to the housing about a second axis perpendicular to the first axis. The cleaner head further includes a plurality of guide members for guiding into the suction chamber debris entrained within air drawn towards the suction inlet. Each guide member is arranged to rotate with a respective caster about the first axis.

The utility model relates to the technical field of early warning devices, and discloses a fire operation leaving early warning device which comprises a base, a supporting frame is vertically and fixedly connected to the top of the base, a lifting plate is vertically and slidably connected to the surface of the supporting frame, a connecting box and a control box are fixedly connected to the surface of the lifting plate, and the control box is arranged at the top of the connecting box. A sliding mechanism for sliding the lifting plate is arranged on the surface of the base, a mounting plate is horizontally and fixedly connected into the supporting frame and arranged at the top of the supporting frame, a human body induction module is mounted on the surface of the mounting plate, and universal wheels are mounted at the four corners of the bottom of the base. According to the device, the lifting plate is arranged in an up-down sliding manner, so that the device can be conveniently used for people with different heights and different use scenes during use, the use effect of the device is improved, meanwhile, the device is matched with real-time monitoring of the human body sensing module, prompting is conveniently carried out when the device leaves people, and the safety of the device is improved.

An autonomous transport robot for transporting a payload, autonomous transport robot including, frame with integral payload support that has a payload seat surface defining a payload datum position that determines predetermined payload position relative to autonomous transport robot, transfer arm connected to the frame and configured for autonomous transfer of payload to and from the frame, one caster wheel mounted to frame, drive section with a pair of traction drive wheels astride the drive section, drive section being connected to the frame, wherein the one caster wheel and one traction drive wheel of the pair of traction drive wheels roll, on a rolling surface effecting autonomous transport robot traversal over the rolling surface, each having a fully independent suspension, and are disposed on the frame astride the integral payload support so that the payload seat surface at the payload datum position is disposed at minimum distance above the rolling surface.

The present invention provides a caring machine and an overhanging machine. A main unit module which included in the caring machine comprises a shifting module, a supporting frame module, and a coupling module. The shifting module, situated below the supporting frame module, allows for movement controlled by the opening and closing of wheel casters. The supporting frame module accommodates diverse caring modules, offering a range of care functions. The coupling module, positioned on the shifting module and the supporting frame module, comprises a plurality of coupling devices and a plurality of coupling interfaces. The caring machine integrating the main unit module is capable of addressing daily life activities and basic rehabilitation training for disabilities and elders. The overhanging machine, which using the caring machine, comprises support columns, overhanging arms, a receiving frame and a sling machine. This invention provides versatility and allows users to achieve plural functionalities within one machine.

The invention discloses a lifting device and method for storage and transfer of an airship pod, and relates to the technical field of storage and transfer of airship pods.The lifting device comprises an upper bracket, two lifting driving assemblies, a middle support, a damping spring, a base, four wheels and a traction rod; through the modular truss structure design, the bearing capacity and the lightweight requirement are both considered; a multi-dimensional vibration reduction system is formed by the vibration reduction springs which are arranged horizontally, longitudinally and transversely and the soft rubber buffer cushion, and the structure and function integrity of the pod in the storage and transfer process can be effectively protected by matching with the flexible moving and locking functions of the universal wheels with brakes; the lifting driving assembly adopts worm and gear transmission to achieve stable lifting and + / -15-degree pitch angle adjustment, an operating hand wheel designed in an ergonomic mode is combined, electric drive is matched, and the requirement for precise adjustment and control of pods is met. And the operation efficiency is greatly improved through the quick disassembly and assembly design of the positioning and fixing assembly and the traction rod.

The invention discloses a construction method of a cantilever formwork system device and a fine-adjustable cantilever formwork system device. The construction method of the cantilever formwork system device comprises the following steps that A, a tripod operation platform is installed; b, a formwork system is assembled; c, a vertical main back ridge, a fine adjustment device, an adjustable triangular support, an adjusting base and a movable scaffold with trundles are installed and fixed to the tripod operation platform; d, the frame body comprising the tripod operation platform is integrally hoisted and hung and buckled on an embedded part in lower layer structure concrete; e, the reserved structure space is enlarged through a fine adjustment device, and the tripod operation platform and the movable scaffold with the trundles are used as platform binding structural steel bars; and F, after steel bars are bound, the formwork system assembled in the step B is hoisted in place, the formwork system is adjusted to the designed structural size position through a fine adjustment device, and structural concrete is corrected and poured.

The present invention discloses an AGV parking robot, which includes: a chassis, a differential drive device, a tire clamping and lifting mechanism, a caster wheel, a control system, a power supply system, a navigation system, and a safety system. It can enter the bottom of a vehicle, lift the whole vehicle through the tire clamping and lifting mechanism, and has strong controllability. According to the scheduling system and the navigation system, it transports the whole vehicle to the designated work station, reduces the uncertainty of human factors, and avoids accidents of people-vehicle collision. By using the parking robot, the input of driver personnel can be greatly reduced, and the labor cost can be saved.

The utility model relates to the technical field of transportation and transshipment, and provides a multipurpose SF6 gas cylinder transfer trolley which comprises a main frame, ladder climbing wheels, a gas cylinder sliding cage, a supporting frame and trundles, the ladder climbing wheels are installed at the bottom of the main frame, the gas cylinder sliding cage is rotationally connected to the main frame, the supporting frame is hinged to the gas cylinder sliding cage, the trundles are both installed at the bottom of the supporting frame, and the gas cylinder sliding cage is rotationally connected to the gas cylinder sliding cage. The trundles are flush with the bottoms of the ladder climbing wheels; the SF6 gas cylinder transfer trolley has the advantages that the SF6 gas cylinder loading and unloading efficiency is greatly improved, the transfer environment adaptability of the transfer trolley is improved, the SF6 gas cylinder transfer trolley can adapt to various complex road conditions and can be conveniently applied to an outdoor transformer substation, and the SF6 gas cylinder on the transfer trolley can achieve inverted gas supply and better conforms to the SF6 gas cylinder gas supply standard.

A rolling lift includes a tiltable and laterally shiftable load table. Tilt mechanisms at the mutual corners of a lift deck and the load table enable tilting of the load table. The apparatus caster units at corners of the cart frame and a handle stowable relative to a base frame of the lift.

The utility model discloses a trundle seat brake structure, and relates to the technical field of trundle manufacturing, the trundle seat brake structure comprises a trundle seat and a brake part in sliding fit with the trundle seat, the trundle seat is coaxially provided with a trundle and a brake pedal through bolts, the brake part is of an L-shaped structure formed by a sliding plate and a brake pad, and a limiting closing opening is formed in the break angle of the brake pad. A square through hole for the brake pad to be inserted in an inclined mode is formed in the trundle base, and the limiting closing-in opening is vertically connected to the square through hole in a sliding mode after the brake pad is inserted in the square through hole. The brake part has the technical advantages that the square through hole is formed in the trundle seat, the sliding plate and the brake which are integrated in an L shape are machined only through one-time bending, assembly on the trundle seat can be achieved, and the overall structure of the brake part is optimized on the premise that the use stability is not affected; by limiting the size of the square through hole, the brake piece can only be assembled in the square through hole in an inclined mode, the brake piece can be stably matched in the square through hole in a sliding mode after being installed, and vertical limiting and lateral limiting can be achieved through the single square through hole.

A Car Seat Transportation Device is an apparatus that holds and transports a car seat when it is out of a vehicle. The device takes the form of a cart supported by four (4) casters that rotate three-hundred-sixty degrees (360°) (spinner style), that easily roll over almost any surface. The rear of the device is provided with handle system, that adjusts in height, and is similar to that of a handle found on a stroller. The top of the platform, or base, that holds the removed car seat is adjustable, allowing use with almost any make or model of car seat. These features allow the device to safely hold a car seat with an infant or child inside of a home and also allow the car seat to function as a stroller as well. It also allows a parent or care giver to remove the car seat from a car with the infant or child still in place and place it on the device thus transforming it into a stroller without disturbing the child. It is great for travel, especially when moving between gates in an airport. Finally, when not in use, the device collapses, and folds for easy storage almost anywhere.

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.

The utility model discloses a caster support stretching stepping die which comprises a lower die bottom plate and a working handle plate, an upper die base plate is arranged at the bottom of the working handle plate, an upper die clamping plate is arranged at the bottom of the upper die base plate, a cutting assembly is arranged at the bottom of the upper die clamping plate, and a shaping assembly is arranged at the top of the working handle plate. Positioning assemblies are symmetrically arranged at the bottom of the upper die clamping plate and comprise guide columns connected to the bottom of the upper die clamping plate in a penetrating mode, and fixing components are arranged at the joints of the guide columns and the upper die clamping plate. The positioning assembly used for aligning the shaping assembly and the cutting assembly is arranged at the bottom of the upper die clamping plate, and the guide column and the upper die clamping plate are positioned by the fixing component arranged at the joint of the upper die clamping plate and the guide column in the positioning assembly, so that the guide column and the upper die clamping plate are prevented from being fixedly connected through threads, and the problem that the shaping assembly cannot be aligned with the cutting assembly after multiple times of punching is avoided. The thread joint of the guide pillar and the upper die clamping plate is continuously impacted, so that threads on the outer side of the guide pillar are damaged, and stability and disassembly of the guide pillar are affected.

Selectively powered caster wheels for a maintenance apparatus are described. A motor attached to the caster wheel(s) can be selectively powered to apply force to the caster wheel. This force can be selected to overcome another force sensed at the maintenance apparatus, or to steer the maintenance apparatus on a desired course or direction. The caster wheels can be configured to orient along a direction of motion of the maintenance apparatus, in response to power from the motor or in response to the motion of the maintenance apparatus itself. In further embodiments, the motor(s) can be selectively activated or deactivated by an operator of the maintenance apparatus, in response to a remote control signal, or in response to an onboard or offboard controller of the apparatus.

This unmanned transport vehicle for transporting a cart having a plurality of casters comprises: a vehicle body part which can enter under the cart from between the casters; a contact part which can contact the cart or a fixed part fixed with respect to the cart on a base side of the caster in a state where the vehicle body part has entered under the cart; a connection part which has, on both left and right sides, pressing parts operated to be capable of pressing the respective fixed parts of the casters on both left and right sides from an opposite side to the contact part along a predetermined direction substantially parallel to a forward / backward direction of the vehicle body part, and which presses the pressing parts to the respective fixed parts to sandwich and hold each fixed part in a predetermined direction between the contact part and the pressing part to connect to the cart; and a control unit which controls the vehicle body part and the connection part so as to be connected to the cart after entering under the cart.

A caster with horizontal braking includes a connecting base, a wheel rotatably connected to the connecting base, and a brake assembly including a movable plate slidably connected to the connecting base and a rotary plate. The movable plate is provided with a brake pad at an end and a first abutting plate with a limiting portion thereon, and is rotatably connected to the connecting base. A second abutting plate fitted with the first abutting plate is arranged on the rotary plate. When the rotary plate is rotated to cause the second abutting plate to push the first abutting plate to move backward, the brake pad moves backward to abut against the wheel, one end of the second abutting plate is abutted against the limiting portion, the force applied by the wheel to the brake pad opposites the force applied by the second abutting plate to the limiting portion.

An over actuated system capable of controlling wheel parameters, such as speed (e.g., by torque and braking), steering angles, caster angles, camber angles, and toe angles, of wheels in an associated vehicle. The system may determine the associated vehicle is in a rollover state and adjust wheel parameters to prevent vehicle rollover. Additionally, the system may determine a driving state and dynamically adjust wheel parameters to optimize driving, including, for example, cornering and parking. Such a system may also dynamically detect wheel misalignment and provide alignment and / or corrective driving solutions. Further, by utilizing degenerate solutions for driving, the system may also estimate tire-surface parameterization data for various road surfaces and make such estimates available for other vehicles via a network.

The invention relates to a simple shifting vehicle and a cushion split type inserting method thereof.The simple shifting vehicle comprises a vehicle frame, a plurality of universal trundles used for driving the shifting vehicle to move are arranged at the bottom of the vehicle frame, the vehicle frame comprises a bottom frame and a single lifting stand column connected to the position of a middle shaft of the bottom frame, and the movable end of the lifting stand column is connected with a supporting handrail; the supporting handrail is connected with a single-plate cushion arranged below the supporting handrail in a hanging mode through a hanging connecting piece, a lock catch structure is arranged on the hanging connecting piece, and the cushion is detachably connected with the supporting handrail through the lock catch structure. According to the shifting vehicle, the supporting armrests and the seat cushion are supported by the single lifting stand column, so that a corresponding mounting frame structure does not need to be additionally arranged on the vehicle frame, the complexity of the vehicle frame structure is reduced, and the seat cushion can be integrally detached from the shifting vehicle and can be conveniently cushioned below the buttocks of a user.