4425 results about "Caster" patented technology

A folding cart having a frame and casters mounted at the bottom of the frame. The frame having a plurality of pillars, a plurality of pairs of bottom folding frames hinged to the pillars, and a plurality of pairs of transverse folding frames and longitudinal folding frames hinged between the pillars, such that four sides of the folding cart can be folded. Fixing blocks are mounted at top ends of the pillars, slidable sliders are arranged on the pillars, lower ends of outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the sliders, upper ends of the outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the fixing blocks, and the sliders slide to drive the transverse folding frames and the longitudinal folding frames to be folded or unfolded.

A multi-function exercise apparatus for conducting an exercise regimen with a single exercise apparatus is disclosed. The apparatus may be readily reoriented via a selectively extensible caster and wheels to face a desired direction for performance of an exercise. The multi-function exercise apparatus may be provisioned with storage locations to maintain weights and other accessories with the apparatus, to equip the multi-function exercise with the necessary weights and accessories for performing a full body exercise regimen. An articulating frame assembly permits a cushion assembly to be raised in either of a partial tilting configuration and a full tilting configuration. In the partial tilting configuration, a seated exercise apparatus is provided. In the full tilting configuration, a full cushioned surface of the apparatus may be tilted to a desired vertical orientation for performance of other exercises with the apparatus.

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.

Autonomous mobile robots for transporting carts are described. An example robotic cart transport system includes a cart for transport and a robotic transport. The robotic transport includes a transport cab and a load handler. The transport cab includes a drive system and a sensor array positioned over the transport cab. The load handler includes a load base supported by a directable caster wheel, a lift table positioned over the load base, a lift abutment anchor, and a lift drive. The robotic transport can autonomously position the load handler under a cart, and the lift drive can raise the lift table up and off of the top surface of the load base, to a lifted position seated against the lift abutment anchor. The lift table will contact and lift the cart in this motion, and the cart can be transported to a new location by the robotic transport.

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 flatbed truck with a foldable caster unit, comprising a load-bearing plate, a load-bearing support frame and a caster unit, and further comprising a caster unit rotation driving device. The caster unit rotation driving device comprises an operating handle, a connecting rod, a front linkage mechanism and a rear linkage mechanism, wherein the operating handle is pivotally connected with the load-bearing plate and is rotatable around a pivot axis of the operating handle. The operating handle is capable of linking with the front linkage mechanism and the rear linkage mechanism via the connecting rod to respectively drive the front caster unit and the rear caster unit to be rotated from the folded storage position to the unfolded rolling position, when the operating handle is rotated from a first position to a second position.

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.

Disclose is a vertical parking holder used for a bicycle including a rear wheel and a seat holder. The vertical parking holder includes a front beam, a rear beam, a pair of connecting rods parallel to each other, a telescopic rod and a pair of position limitation holders. Each of the front beam and the rear beam is provided with a pair of caster wheels at the bottom. One end of the telescopic rod is fixedly connected to the front beam and the other end of the telescopic rod is provided with a supporting holder. The telescopic rod is provided with a binding band. Two ends of the pair of connecting rods are fixedly connected to the front beam and the rear beam respectively to form a gap. The vertical parking holder as provided by the present disclosure has a wide range of applications, excellent stability and high safety.

The utility model provides a secondary glue joint forming die for an airplane composite material wallboard, and belongs to the technical field of composite material forming. Comprising a template assembly, a frame assembly, an in-bag clamping plate assembly, an out-bag clamping plate assembly, a T-shaped stringer forming die assembly and a trundle assembly. The frame assembly is used for supporting the whole mold. The formwork assembly is a wallboard skin forming assembly, and the in-bag clamping plate 3 and the out-bag clamping plate assembly 4 are positioned on the formwork assembly through positioning holes and used for positioning the position of the T-shaped stringer forming die assembly. According to the utility model, the accuracy of the appearance curvature of the skin and the accuracy of the position of the T-shaped stringer on the skin are ensured, the positioning method is simple and reliable, and when the autoclave is formed, the airflow flows uniformly, no local large temperature difference exists, and the wallboard forming quality is high.

Various ridable karts for users are described. The ridable kart can include a kart body, a cover body, a rear caster wheel, a steering assembly, a battery, and a controller. The kart body can include an installation slot. The controller and the battery can be secured within the installation slot. The steering assembly can include a front wheel and a steering wheel. The front wheel can include a hub motor arrangement.

A swivel castor, having a housing which can be pivoted into a rolling direction via pivot means and two wheels rotatably mounted on the housing on a horizontal wheel axle, wherein the pivot means are arranged in front of the wheel axle, contrary to the rolling direction, and having a braking device designed to be adjustable between a braking position, in which the braking device exerts a braking force on at least one wheel, and a free-rolling position, in which the braking device releases the wheels. A brake pedal generating the braking force is pivotably mounted on the housing via a pedal axle, which extends parallel to the wheel axle and arranged between the wheels, and, in the braking position, at least one brake shoe arranged on the brake pedal exerts a braking force parallel to the wheel axle directly on one side of at least one wheel.

A frame for a pull-rod luggage case, including pair of pull rods parallel to each other, a pair of castor seats, an upper beam, a lower beam, and a handle; each of the pull rods at least includes an outer rod and an inner rod telescopically positioned in and out of the outer rod; a lower end of each outer rod is connected to a corresponding castor seat; each of two ends of the handle is fixedly connected with an upper end of a corresponding inner rod; outer rods, the upper beam, and the lower beam define a skeleton.

The invention discloses a buoyancy pipe penetrating construction method, which is characterized in that a water source is used as a medium between an outer sleeve and an inner penetrating pipe, so that the smoothness of the construction process is ensured, and an inlet hole water stopping device and an outlet hole water stopping device are respectively arranged at two ends of the outer sleeve and are used as a sealing system of the water source. In addition, a limiting device, a limiting roller and an anti-collision roller are installed at the position of the inlet hole, the inner wall of the outer sleeve and the end of the inner penetrating pipe respectively. And finally, the inner penetrating pipe is smoothly pushed into the outer sleeve under the action of buoyancy. The problems that in a traditional roller launching method, a method for installing trundles on the outer wall of a pipeline and a pulley block propelling method, the roller structural strength is insufficient, durability is poor, and an outer anticorrosive coating of the pipeline is prone to being damaged are effectively solved, and the method is particularly suitable for large-diameter and long-distance inner penetrating pipe construction with the high requirement for finished product protection; and the method has good economical efficiency and implementation effect.

The utility model relates to a turnover mixing machine which comprises two supporting frames, two guide plates, a material frame and a hopper, the two supporting frames are arranged in a spaced mode, and a lower cross beam is connected between the two supporting frames; the two guide plates are arranged on the lower cross beam, and a containing area is formed between the two guide plates; trundles are arranged at the bottom of the material frame. The hopper is arranged on the material frame, a guide frame is arranged at the bottom of the hopper, the extending direction of the guide frame is parallel to the extending direction of the lower cross beam, positioning wheels are rotationally arranged at the two ends of the guide frame, and the two positioning wheels are used for being matched with the two guide plates in a guiding mode so that the hopper can be arranged in the containing area; the problems that when a mixing hopper is pushed into the bottom of a mixing machine, a hopper underframe often collides with a guide plate and cannot be pushed, the hopper needs to be pulled out and pushed in repeatedly to adjust the entering posture of the hopper, the labor intensity is increased, and the production efficiency is affected are solved.

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 mobile lift apparatus includes a mobile base frame with sets of height adjustable, triple caster units, frame mounted floor brakes, a load deck, scissor linkage engaged between the base frame and the load deck, and a load table movable on the load deck. An actuator is engaged with the scissor linkage to extend and retract the scissor linkage.

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 discloses a packing box, which relates to the technical field of packing transportation, is used for packing equipment with casters, and comprises a box body and a supporting plate arranged at the bottom of the box body, the supporting plate comprises a bottom plate, the top surface of the bottom plate is concavely provided with a clamping groove, and the clamping groove is used for enabling at least part of the casters of the equipment to sink. On one hand, free rolling of the trundles in the transportation process is avoided, so that the situation that equipment shifts in the box body and extrudes the box body is avoided, on the other hand, the clamping grooves can also have certain restraining and buffering effects on the trundles, and the problem that the trundles cause large impact on the equipment and damage the equipment is avoided.

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.

A caster board can include a front platform, a rear platform, and at least two neck sections extending between the front platform and the rear platform. The neck sections can serve as a torsion element allowing twisting of the front platform relative to the rear platform. An aperture between the neck sections can be configured to receive an insert. The insert can alter a structural characteristic of the caster board, such as the torsional stiffness of the caster board.

The invention discloses a guardrail device and a using method. The guardrail device comprises a frame structure. The first structure and the second structure are movably arranged on the frame structure; the first trundle part is arranged at the bottom of the first structure; the supporting component is arranged at the bottom of the second structure; the first elastic component acts on the first structure, and the second elastic component acts on the second structure; when the weight of the first structure is greater than a first preset weight, the first structure overcomes the elastic force of the first elastic component and moves in the direction close to the bottom of the frame structure, so that the first trundle component extends out of the bottom of the frame structure; when the weight is larger than a second preset weight, the second structure overcomes the elastic force of the second elastic component and moves in the direction close to the bottom of the frame structure, so that the supporting component extends out of the bottom of the frame structure. The foundation protection function is guaranteed through the frame structure, the state of the guardrail device is switched by increasing and decreasing the weight, the guardrail device is convenient to move while normal use is not affected, and therefore balance can be achieved between the easy-to-open moving function and the prominent anti-collision capacity.

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.