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140results about "Monorails" patented technology

Intelligent car catching device for monorail crane sports car

The utility model relates to monorail crane sports car protection equipment, in particular to an intelligent monorail crane sports car catching device which comprises a fixed tripod and a car catching mechanism. The fixed tripod is fixed to the side wall of a roadway, a left inserting plate and a right inserting plate are arranged below the fixed tripod, a left fixed shaft and a right fixed shaft are arranged in a car catching frame of the car catching mechanism, the left fixed shaft is rotationally connected with a left car catching plate, the right fixed shaft is rotationally connected with a right car catching plate, and a left air cylinder and a right air cylinder are fixed to the upper portion of the car catching frame. A piston rod of the left air cylinder is hinged to the upper end of the left car catching plate, the upper end of the left car catching plate is further hinged to a horizontal left inserting rod, a piston rod of the right air cylinder is hinged to the upper end of the right car catching plate, and the upper end of the right car catching plate is further hinged to a horizontal right inserting rod. When the monorail crane runs, the intelligent car catching device can counteract the running potential energy of the car, so that the running car is stopped in time, and the possibility of accidents after the car runs is reduced.
Owner:SHANXI JINYUNAN FAN CO LTD +2

Transport system for moving loads on a surface

PendingDE102024127735A1RailsMonorails
Transport system (100, 200, 300, 400, 500) for moving loads on a surface, comprising at least one rail track and at least one transport vehicle (50) running on wheels (12, 12A) on the rail track, characterized in that the rail track comprises a solitary rail (10, 312, 314, 412, 414, 512, 514) for receiving the load of the transport vehicle (50), that the transport vehicle (50) comprises at least one front wheel (12) and at least one rear wheel (12A), each bearing a tread (14) with a concave cross-section in the direction of travel one behind the other on the rail (10, 312, 314, 412, 414, 512, 514), and that the transport vehicle (50) further comprises support rollers (52A, 52B) includes, which are arranged on both sides of the front and rear wheels (12, 12A) and run on the ground on both sides of the rail (10, 312, 314, 412, 414, 512, 514).
Owner:SIEMPELKAMP TRANSPORT SYSTEMS GMBH

On-line detection device for toothed rail wheel

The invention discloses an online detection device for a rack rail wheel, relates to the technical field of rail transit vehicles, and aims to solve the problem that the meshing relation between the rack rail wheel and a rack cannot be actually detected. The gear tooth structures of the detection rack and the line rack are consistent in specification; the propelling device is arranged on one side of the detection rack and used for driving the detection rack to move in the direction perpendicular to the extending direction of the detection rack; the pressing device is arranged on the other side of the detection rack, and the pressing device is used for providing pre-tightening force enabling the detection rack to reset in the direction perpendicular to the extending direction of the detection rack; through the arrangement, the actual meshing center distance between the rack rail wheel and the rack can be directly detected.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD

Roller tensioning assembly

An adjustable roller assembly for a linear rail system carriage has an indexing collar, an eccentric bushing, an adjustable roller, a suspension element, and an adjustment collar. The indexing collar has a first indexing structure. The adjustable roller is rollably mounted to a roller side end of the eccentric bushing. A rolling axis of the adjustable roller is offset from the axis of the adjustable roller assembly. The suspension element is mounted in axial alignment with an adjustment side end of the eccentric bushing. The adjustment collar has a circumferential flange having a second indexing structure. The first indexing structure and the second indexing structure are coupled to rotationally couple the adjustment collar with the suspension element.
Owner:4AG ROBOTICS INC

Elevator and distribution system

An elevator (200) is provided with: a lift car (210) that ascends and descends; a partition (221) that partitions the space in the elevator car (210) into a first elevator space (211) in which people are boarding and a second elevator space (212) in which the automated guided vehicle (100) is boarding; an elevator inner guide rail (32) disposed in the second elevator space (212) and including a movable guide rail (32a); and an actuator that moves the movable guide rail (32a). The automatic guided vehicle (100) travels along the elevator inner guide rail (32), and the movable guide rail (32a) is switched between a first guide rail state and a second guide rail state by being driven by an actuator. In the first guide rail state, the first end (32k) of the movable guide rail (32a) is connected with the second end (31k) of the floor inner guide rail (31), and in the second guide rail state, the first end (32k) of the movable guide rail (32a) is not connected with the second end (31k).
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

Articulated monorail vehicle chassis

The invention relates to the technical field of railway vehicle chassis structures, and discloses a hinged type monorail vehicle chassis which comprises a main frame, a sleeper beam and a traction beam. The main frame comprises two sets of side longitudinal beams arranged side by side and two sets of side cross beams used for connecting the two sets of side longitudinal beams. The sleeper beam is parallel to the side cross beams, and the two ends of the sleeper beam are connected to the two sets of side longitudinal beams respectively; the traction beam and the side longitudinal beams are arranged in parallel, the two ends of the traction beam are connected to the two sets of side cross beams respectively, and the traction beam penetrates through the sleeper beam and is fixedly connected with the sleeper beam. And a traction plate is arranged on the traction beam. According to the double-layer truss type structural design, the traction beams, the side cross beams and the sleeper beams are composed, the weight is effectively reduced, and the structural strength and rigidity are guaranteed. Through the simple and convenient structure of the side cross beam, the stress on the side longitudinal beam can be effectively dispersed. The underframe structure is easy and convenient to construct, most of the underframe structure is made of profiles of the same or similar specifications, material preparation is easy and convenient, the welding amount is small, and the manufacturing time is saved by 30% or above.
Owner:ZHUZHOU CSR SPECIAL EQUIP TECH

Entry / exit device for a monorail vehicle

Entry / exit device (10b) for a monorail vehicle (16) with - a staircase (34) comprising an uppermost step (38) and at least one further lower step (38) and at least one connecting beam (36) connecting all the steps (38), which has an upper end (40) on the uppermost step (38) and a lower end on the lowermost step (38), - a mounting element (32) for attachment to the monorail vehicle (16), - wherein the connecting beam (36) is pivotable at its upper end (40) about a pivot axis of the mounting element (32) and - wherein the staircase (34) can be automatically pivoted about the pivot axis from a parking position not intended for use of the staircase (34) into an extended position allowing its use, and - a locking and unlocking unit (48) for automatically unlocking the staircase (34) in the park position and automatically locking the staircase (34) in the extension position when the staircase (34) is moved from the park position to the extension position, characterized by, - a foldable or extendable step (52) which is arranged on the mounting element (32) above the uppermost step (38) of the staircase (34) and which is foldable or retractable in its position when the staircase (34) is in the park position and is foldable or extendable in its position when the staircase (34) is in the extended position.
Owner:KRÖNKE

Mountain track and mountain track car

The invention relates to the technical field of mountain track cars, in particular to a mountain track and a mountain track car, which comprises a steel track, a main wheel set is arranged on one side, close to the steel track, of a seat area, an auxiliary wheel set is arranged on one side, close to the steel track, of a pedal area, and the main wheel set comprises an upper main rolling wheel, a lower main rolling wheel and a main wheel set mounting plate. The upper main rolling wheel is located on the side, close to the seat area, of the steel rail, the lower main rolling wheel is located on the side, away from the seat area, of the steel rail, and a brake wheel is arranged on the outer side face of the main wheel set mounting plate and fixedly connected with the lower main rolling wheel through a shaft. By arranging two sets of braking systems which work cooperatively, namely the main wheel set side braking assembly and the auxiliary wheel set side braking assembly, the running safety and adaptability of the mountain track car are improved, the main wheel set side braking assembly enables a lower main rolling wheel to stop rotating, and by combining the structural design of a main wheel set, the running safety and adaptability of the mountain track car are improved. The friction force between the main wheel set and the steel rail can be increased, and meanwhile the risk existing in direct braking is avoided.
Owner:FUAN HAIRONG STAINLESS STEEL PROD CO LTD

Planetary wheel type monorail vehicle

This utility model provides a planetary gear monorail transport vehicle, which relates to the field of hilly and mountainous transportation equipment. The vehicle has drive wheels on its base plate for transmission connection with guide rails; a battery pack is mounted on the base plate; a drive motor is mounted on the base plate, and the power interface of the drive motor is electrically connected to the battery pack; a planetary gear system is mounted on the base plate, and the output shaft of the drive motor is transmission-connected to the input end of the planetary gear system; the planetary gear system includes a planet carrier, which serves as the power output end and is transmission-connected to the drive wheels. This vehicle can replace the traditional internal combustion engine drive structure, simplifying the structure and reducing labor costs and operational risks.
Owner:FUJIAN UNIV OF TECH

Lower bogie beam for bogie and straddle type bogie frame

The utility model provides a kind of for bogie's lower bending beam and straddle type bogie frame, the lower bending beam for bogie includes: left vertical plate and right vertical plate;Lower bending beam upper cover plate;Lower bending beam lower cover plate;First sealing plate, the first sealing plate with the horizontal upper cover, horizontal lower cover, left vertical plate and right vertical plate are connected;Air chamber muscle plate, the air chamber muscle plate with the inclined lower cover, left vertical plate and right vertical plate are connected;Second sealing plate, the second sealing plate with the inclined upper cover, air chamber muscle plate, left vertical plate and right vertical plate are connected;The left vertical plate, right vertical plate, lower bending beam upper cover plate, lower bending beam lower cover plate, first sealing plate, air chamber muscle plate and second sealing plate are enclosed to form air chamber.The lower bending beam for bogie of the utility model, sets up second sealing plate and air chamber muscle plate to replace original baffle, while guaranteeing structural strength, reduce manufacturing difficulty, realize 100% detection of air chamber all welds.
Owner:CHINA RAILWAY NEW COMM INVESTMENT CO LTD (HEFEI)

Pivot-type suspended monorail multi-turnout beam and running rail joint device thereof

A pivot-type suspended monorail multi-way turnout beam and a traveling rail jointing device thereof. The traveling rail jointing device for the pivot-type suspended monorail multi-way turnout beam includes: a jointing plate (10), a rotating support seat (20), a lever (30) and a push-pull assembly (40). The jointing plate (10) is disposed with a rotation shaft (12) thereon along an extension direction of a plate surface thereof. The rotation shaft (12) is rotatably embedded on the rotating support seat (20). A first end of the lever (30) is fixed on the jointing plate (10), and a second end of the lever (30) is connected to the push-pull assembly (40). The technical solution of the disclosure can realize reliable jointing for pivot-type suspended monorail multi-way turnout beams through a simple structure.
Owner:CRRC YANGTZE GRP CO LTD

Straddle-type bogie frame and straddle-type monorail vehicle

The application provides a straddle type bogie frame and a straddle type monorail vehicle, the straddle type bogie frame comprising a combined beam and a down bending beam, the combined beam comprising a high side beam, a low side beam, a traction beam connecting the high side beam and the low side beam, and an end beam connecting the high side beam and the low side beam, the number of the down bending beams being two, and the two down bending beams being connected with the high side beam and the low side beam respectively, and the combined beam and the down bending beam being connected in a T joint fillet welding and V type butt joint welding mode. The straddle type bogie frame and the straddle type monorail vehicle are formed by combining and welding the combined beam and the down bending beam formed in a split mode, the air chamber is independently formed in the down bending beam, the low side beam and the high side beam are decoupled, the structure is better in stress bearing, and the weld accessibility is better; the combined beam serves as a base, and when the combined beam is combined with the down bending beam, the overall welding deformation is small, the combined beam is not prone to twisting, and the size after welding is easy to control.
Owner:CHINA RAILWAY NEW COMM INVESTMENT CO LTD (HEFEI)

Portable car pusher

The invention relates to the technical field of railway loading and unloading auxiliary tools, in particular to a portable car pusher which comprises a monorail trolley body, a crowbar support, a crowbar and a pin shaft, a car pushing handle is arranged at the top end of the rear side of the monorail trolley body, and rear wheels are arranged on the rear portion of the monorail trolley body. Two crowbar supports are symmetrically and fixedly installed on the left side and the right side of the front portion of the top end of the monorail trolley body, a crowbar is arranged between the two crowbar supports, the crowbar and the two crowbar supports are connected through a pin shaft to form a pair of reverse tensioning type pliers, and the crowbar can swing up and down around the pin shaft to pry and rotate wheels of the railway freight car. A driving assembly for driving the crowbar to swing up and down around the pin shaft is arranged on the monorail trolley body; the bottom of the front end of the crowbar support and the rear wheel are jointly supported on the rail surface. The portable car pusher is low in manufacturing cost and convenient to popularize.
Owner:NANJING FORESTRY UNIV

Guide wheel device for straddle type monorail train

The invention provides a guide wheel device for a straddle type monorail train, which comprises a main shaft, a hub rotationally supported on the main shaft through a bearing, and a tire and a safety wheel which are arranged on the hub, and an anti-falling plate for supporting a bearing outer ring when the bearing outer ring falls off is fixedly arranged at the bottom of the main shaft. According to the straddle type monorail train, the anti-falling plate is arranged at the bottom of the main shaft, when the bearing loses efficacy or the hub falls off due to falling of the end cover, the anti-falling plate can vertically support the outer ring of the bearing, so that the hub and an external tire assembly are prevented from falling to a rail, and the running safety of the straddle type monorail train is remarkably improved.
Owner:CRRC NANJING PUZHEN CO LTD

Narrow Space Personal Transportation System

The personal transportation system includes a plurality of personal transportation vehicles (PTVs) traveling on a track network having a series of track sections. The PTV's main section has a width adapted to accommodate a single occupant. The PTV drive mechanism propels the PTV and includes track-engaging elements that protrude downward from the main section and have a narrow width that makes the main section prone to tipping when the PTV is stationary. The space between the width of the main section and the track-engaging elements can be occupied by public infrastructure. Each track section includes a ground portion minimally adapted to accommodate the width of the track-engaging elements and a clear space above the ground portion minimally adapted to accommodate the width of the main section that is free of non-transient obstacles. The guidance mechanism guides the PTV along the track network and prevents the PTV from deviating from the track section. The stabilization mechanism stabilizes the PTV along the track network and prevents the PTV from tipping over when turning, merging, or branching.
Owner:NATIVONIM LTD

Straddle type tourist monorail vehicle and traction control method

The invention provides a straddle type tourism monorail vehicle and a traction control method, and relates to the technical field of railway vehicles, the straddle type tourism monorail vehicle comprises a plurality of carriages, bogies, a power battery and a traction auxiliary inversion assembly, the bogies comprise a power hinge bogie, a non-power hinge bogie and a non-power bogie, the carriages comprise a plurality of second carriages arranged in sequence and first carriages located at at least one end of the second carriages, the power hinged bogies are used for connecting every two adjacent second carriages, and the non-power hinged bogies are used for connecting the first carriages and the second carriages or connecting the first carriages and the second carriages. For every two adjacent first carriages, the non-power bogie is arranged below a cab at the ends of the carriages, and the power battery and the traction auxiliary inverter assembly are arranged in the first carriages. The monorail traffic system is excellent in overall performance and suitable for complex terrains of scenic spots.
Owner:CHINA RAILWAY NEW COMM INVESTMENT CO LTD (HEFEI)

A low-damage orchard monorail transport machine with track surface detection

This invention discloses a low-damage orchard monorail transport machine with track surface detection, relating to the field of agricultural fruit and vegetable harvesting technology. It includes: a track, a power unit, and a basket. Both the basket and the power unit are movably mounted on the track. A flip-up plate is installed at the bottom of the basket, with one end of the flip-up plate near the power unit hinged to the basket. A support plate is connected to the flip-up plate via an elastic element. The end plate of the basket near the power unit is detachable. A camera is telescopically mounted between the flip-up plate and the support plate. When transporting fruits and vegetables downhill, the flip-up plate is positioned inside the basket, and the elastic element between the support plate and the flip-up plate provides vibration damping for the fruits and vegetables, improving their protection. When moving uphill to the harvesting area, the end plate of the basket near the power unit is detached, and the flip-up plate is flipped, carrying the support plate, and fastened to the power unit. Then, the camera extends to detect the track surface in front of the power unit.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

A traction system for a straddle-type monorail sightseeing vehicle

The present application relates to the technical field of sightseeing car traction system, and disclose a kind of traction system for straddle type monorail sightseeing car, including power supply brake detection module, path monitoring system, monorail overhead line and wireless communication module;The power supply brake detection module includes energy storage module and traction control module, the energy storage module is used to provide direct current, and the power energy is input to traction control module by DC / DC converter;The power supply brake detection module is used to change DC1500V into AC1500V;The power supply brake detection module includes direct current DC mode and alternating current AC mode;Power supply brake detection module includes ramp conversion module, ramp conversion module is used to track the slope on track in the process of running, path identification slope section, the path identification slope section is provided with climbing mode, flat slope mode and downhill deceleration mode.The present application has the advantages of automatic traction speed regulation and automatic conversion of switching direct current and alternating current.
Owner:ZHEJIANG DAFENG RAIL TRANSIT EQUIP CO LTD

conveyor

PendingEP4628384A1MonorailsRope railways
A transport vehicle (3400) that transports packages includes: a first arm (3411); a second arm (3412); a first wheel (3411a) connected to the first arm (3411); a second wheel (3412a) connected to the second arm (3412); at least one actuator; and a controller (control processor (3420)). When the transport vehicle (3400) is slidably hung from the first rail (7a) via the first wheel (3411a) and the second wheel (3412a), the controller controls the at least one actuator (arm actuator (3413), roller actuation motor (3415)) to disengage the first wheel (3411a) from the first rail (7a) and place the first wheel (3411a) on the second rail (7b), and disengage the second wheel (3412a) from the first rail (7a) and place the second wheel (3412a) on the second rail (7b).
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

Traveling-vehicle system

A travelling-vehicle system 1 comprises: a work-use track 41 which is connected to a travel-use track 4 and for which formed is an open part 47 which causes at least a section of a travelling part 50 to be exposed to an outside space; a stopper 81 that is a member against which is pressed a roller 52 that is disposed, with respect to the travelling part 50, so as to be rotatable about a shaft extending in the vertical direction, the stopper being retractably provided with respect to a movement region R1 of the work-use track 41 and for a travelling vehicle 6; and a pusher 85 that positions the travelling part 50 at a prescribed position on the work-use track 41 by causing the travelling part 50 to move in one direction and by pressing the roller 52 against the stopper 81 in one direction.

Vehicle system

This traveling vehicle system (1) comprises: a track (4) having, in a portion thereof, a non-autonomous traveling section in which a traveling vehicle (6) cannot autonomously travel; a traveling vehicle (6) which travels along the track (4); and a moving unit (60) which moves, in one direction, the traveling vehicle (6) in the non-autonomous traveling section. The moving unit (60) has a moving mechanism (63) which causes a movable block (61) to move in one direction. The traveling vehicle (6) has an engagement part (53) which can be engaged with the movable block (61); and a switching mechanism (53C) which switches the position of the engagement part (53) between a first position where the engagement part (53) is engaged by the movable block (61) and a second position where the engagement part is separated away from the movable block (61). The moving mechanism (63) causes the traveling vehicle (6) to move by moving, in one direction, the movable block (61) in a state in which the engagement part (53) is being engaged.
Owner:MURATA MASCH LTD

Vehicle transporting system

A vehicle transporting system is made up of a motor system comprising a magnetic levitation and propulsion system, a transporter body connectable to and moveable by the motor system, and a vehicle coupling system adapted to be coupled one or more vehicles to the transporter body. When one or more vehicles are coupled by the vehicle coupling system to the transporter body, the transporter body and the one or more vehicles can be transported from one location to another location by the motor system.
Owner:AERIDU LLC

A transport system, a method for controlling the transport system, a control program, and a recording medium.

To efficiently convey a conveyance object.SOLUTION: A conveyance system (1) comprises: a carriage (30) capable of conveying a plurality of conveyance objects; and a carriage controller (20) that performs allocation processing for allocating the conveyance objects F prior to conveyance to the carriage (30). The carriage controller (20) performs the allocation processing in such a manner that, when a region in which the carriage (30) is movable is divided into a plurality of areas, areas of destinations of the plurality of conveyance objects F that are to be simultaneously conveyed by the carriage (30) are the same.SELECTED DRAWING: Figure 1
Owner:DAIFUKU CO LTD

Vibration measuring device

To provide a vibration measuring device capable of outputting information for appropriately analyzing a cause of measured vibrations.SOLUTION: A vibration measuring device 20 installed in a carrying vehicle 3 comprises: a vibration measuring part 21 for measuring vibrations; a position information acquisition part 22 for acquiring position information indicating a position of the carrying vehicle 3; a state information acquisition part 23 for acquiring carrying vehicle state information indicating a state of the carrying vehicle 3; a recording part 24 for recording a measurement result obtained by the vibration measuring part 21, the carrying vehicle state information, and the position information in association with one another; and an output part 25 for outputting information recorded in the recording part 24.SELECTED DRAWING: Figure 3
Owner:DAIFUKU CO LTD

Braking systems for use with air bearings and in transportation systems

One or more embodiments include a braking system used with an air bearing and in a transportation system, such as a hanging monorail. One example is an assembly that is attached to a vehicle and positioned with respect to a rail, an air bearing (positioned with respect to the assembly and rail), which is able to receive air from an air supply, and a brake pad (of a braking system), which is positioned in an area that is relative another area associated with the air bearing, and which is engageable with respect to the rail via the air it receives from the air supply such that there is no need for any change to be made with respect to the air received by the air bearing to achieve brake engagement. In some embodiments, the frictionless bearing is made of a compliant material, inflated, and / or has a certain shape.
Owner:DURAN ARIZA GONZALO

Elevator and delivery system

An elevator includes: an elevator carriage that moves up and down; a partition that divides a space within the elevator carriage into a first elevator space for a person to board and a second elevator space for an unmanned transport vehicle to board; an elevator rail that includes a movable rail and is arranged in the second elevator space; and an actuator that moves the movable rail. The unmanned transport vehicle travels along the elevator rail, and the movable rail is switched between a first rail state and a second rail state by actuation of an actuator. In the first rail state, the first end of the movable rail is connected to the second end of the story rail, and in the second rail state, the first end is not connected to the second end.
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

Independent wheel and mounting structure thereof

The utility model discloses an independent wheel and a mounting structure thereof, the independent wheel comprises a wheel and an axle, two ends of the axle are respectively and coaxially connected with a set of bearing mechanism, the axle can rotate in the bearing mechanism, and the bearing mechanism comprises a bearing coaxially connected with the axle and a limiting structure coaxially arranged on the axle and used for limiting the axial movement of the bearing. The bearing is sleeved with an elastic supporting part, the elastic supporting part is perpendicular to the axle, and a supporting fixing plate used for being fixed to the bogie is fixed to the top of the elastic supporting part. The two ends of the axle are coaxially connected with the bearing mechanisms respectively, and the axle can rotate in the bearing mechanisms. As a common and effective mechanical transmission part, the bearing can greatly reduce the friction force when the axle rotates, so that the axle can smoothly and flexibly rotate, the independent wheel can stably and efficiently run in the walking process, the energy loss is reduced, and the running efficiency of the vehicle is improved.
Owner:WUHAN CRRC INTELLIGENT TRANSPORTATION SYST CO LTD

Determining system

A determining system 1 comprises: an imaging unit 132 that is provided on a moving body which travels along a track and that images fasteners and fastening sites provided on or around the track while moving in conjunction with the movement of the moving body; a storage unit 133 that stores a relationship defining an allowable range of positional displacement between the fasteners and the fastening sites, the relationship being defined in advance on the basis of, among coordinates set along the track, the coordinates of the fasteners and coordinates corresponding to a trajectory along which the imaging unit 132 moves in conjunction with the movement of the moving body along the track; and a determining unit 137 that determines loosening of the fasteners with respect to the fastening sites on the basis of images captured by the imaging unit 132 and the relationship stored in the storage unit 133.
Owner:MURATA MASCH LTD

Rail guided cart system

An overhead traveling vehicle system includes a tracked cart movable in a first direction when a traveler travels on a pair of first rails and movable in a second direction when the traveler travels on a pair of second rails, and a cart controller configured or programmed to control the tracked cart. The pair of the first rails and the pair of the second rails are provided with position recognition marks. The tracked cart is faces position recognition marks and includes four position recognition sensors facing the position recognition marks. The cart controller is configured or programmed to derive a shift amount between a predetermined position in a cell and a stop position of the tracked cart based on the position information acquired by the position recognition sensors.
Owner:MURATA MASCH LTD

carriage

To provide a high load capacity carriage.SOLUTION: The carriage moves along a rail part that has a straight portion and a curved portion. The carriage has: a pedestal part; at least two first rotor parts including a pair of wheels which sandwiches the rail part in between and each of which rotates in contact with each side of the rail part at the pedestal part, and one or a pair of second rotor parts. The pair of wheels is attached to the pedestal part via support members. Further, when the carriage is moving along the straight portion, the support members of the first rotor part are on a predetermined reference line in the pedestal part, the reference line overlapping a center line in the straight portion of the rail part, and the support members of the first rotor part are connected to the pedestal part rotatably around a line located off a line connecting centers of rotation of each of the pair of wheels.SELECTED DRAWING: Figure 5
Owner:THK CO LTD