| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 105197050 | Sprung bolster | 38 |
| 20100107923 | Primary Suspension Device for a Railway Vehicle Bogie - Disclosed is a device ( | 05-06-2010 |
| 20110247520 | FREIGHT CAR BOGIE AND FREIGHT CAR - The present invention discloses a freight car bogie and a freight car. The freight car bogie comprises two wheel sets, two side frames arranged at outer side of said wheel sets, and a bolster fixedly connected to center position of each of said two side frames, respectively. The freight car bogie further comprises a K-shaped supporting device, wherein said K-shaped supporting device passes through preset holes on two sides of an abdominal region of said bolster; a first upper end and a second upper end, as well as a first lower end and a second lower end of said K-shaped supporting device are elastically connected with said two side frames respectively; and said first upper end and second upper end, and said first lower end and second lower end are respectively symmetrical with respect to a centre line of said bolster. The K-shaped supporting device of the present application may not pass through the middle part of the bolster so that a reinforcing rib for bearing vertical load can be disposed on the middle part of the bolster, thereby increasing the anti-lozenge-distortion rigidity of the bogie as well as improving the strength of the bolster for bearing the vertical load. | 10-13-2011 |
| 20120318165 | CENTRAL SUSPENSION DEVICE, WAGON BOGIE AND EXPRESS RAILWAY WAGON - A central suspension device, a wagon bogie and an express railway wagon, wherein the central suspension device is arranged between a frame and a bolster of the wagon bogie and comprises a rubber-metal pad spring group composed of at least two rubber-metal pad springs, a bottom end of each rubber-metal pad spring is connected with the frame, a top end of at least one rubber-metal pad spring of the rubber-metal pad spring group is connected with the bolster, and a gap exists between the top end of at least one rubber-metal pad spring and the bolster. The central suspension device has multiple stages of rigidities in the transverse and vertical directions, so that the different rigidities can be mutually shifted conveniently on the empty vehicle condition and the heavy-load condition of the vehicle, therefore, the central suspension device is applicable to express railway vehicles for safe and stable running. | 12-20-2012 |
| 20130055922 | RAILROAD CAR WHEEL TRUCK - A wheel truck for a railroad car, including: a front wheel pair assembly and a rear wheel pair assembly; two side frame assemblies, each side frame assembly including a square box and journal-box guides; two spring suspension devices; and a bolster assembly including two ends disposed on the two spring suspension devices, respectively. The bolster assembly includes a pilot hole in the center and two mounting holes on the two ends, the pilot hole is rotationally matched with a cylindrical upper center plate of a car body for transmitting vertical and horizontal forces from the car body, and the two mounting holes are disposed above the two spring suspension devices, respectively. Each mounting hole receives a lower side bearing, and the lower side bearing is matched with a corresponding upper side bearing disposed on each side of the car body for transmitting the vertical load from the car body. | 03-07-2013 |
| 20140123870 | RAILCAR BOGIE - A plate spring bogie includes: a cross beam supporting a carbody of a railcar; a pair of front and rear axles sandwiching and respectively arranged in front of and behind the cross beam in a railcar longitudinal direction to extend in a railcar width direction; bearings respectively provided at both railcar width direction sides of each of the axles and rotatably supporting the axles; axle boxes respectively accommodating the bearings; plate springs extending in the railcar longitudinal direction to respectively support both railcar width direction end portions of the cross beam and each including both railcar longitudinal direction end portions respectively supported by the axle boxes; and an auxiliary supporting mechanism supporting the railcar width direction end portion of the cross beam in a case where the railcar width direction end portion of the cross beam is displaced downward beyond a predetermined elastic deformation range of the plate spring. | 05-08-2014 |
| 20140144347 | RAILCAR BOGIE - A plate spring bogie includes: a cross beam supporting a carbody of a railcar; a pair of front and rear axles sandwiching and respectively arranged in front of and behind the cross beam in a railcar longitudinal direction to extend in a railcar width direction; bearings respectively provided at both railcar width direction sides of each of the axles and rotatably supporting the axles; axle boxes respectively accommodating the bearings; plate springs extending in the railcar longitudinal direction to respectively support both railcar width direction end portions of the cross beam and each including both railcar longitudinal direction end portions respectively supported by the axle boxes; and an auxiliary supporting mechanism supporting the railcar width direction end portion of the cross beam in a case where the railcar width direction end portion of the cross beam is displaced downward beyond a predetermined elastic deformation range of the plate spring. | 05-29-2014 |
| 20150020708 | RAILCAR BOGIE - A railcar bogie includes: a cross beam configured to support a carbody of a railcar; a pair of front and rear axles between which the cross beam is located and which are respectively arranged in front of and behind the cross beam in a railcar longitudinal direction so as to extend in a railcar width direction; bearings respectively provided at both railcar width direction sides of the axles and configured to rotatably support the axles; axle box main bodies configured to respectively accommodate the bearings; plate springs extending in the railcar longitudinal direction to respectively support both railcar width direction end portions of the cross beam, both longitudinal direction end portions of the plate springs being respectively arranged above the axle box main bodies to be respectively supported by the axle box main bodies. | 01-22-2015 |
| 20150083019 | RAILCAR BOGIE - A railcar bogie includes: a cross beam configured to support a carbody of a railcar; a pair of front and rear axles between which the cross beam is located and which are respectively arranged in front of and behind the cross beam in a railcar longitudinal direction so as to extend in a railcar width direction; bearings respectively provided at both railcar width direction sides of the axles and configured to rotatably support the axles; axle box main bodies configured to respectively accommodate the bearings; plate springs extending in the railcar longitudinal direction to respectively support both railcar width direction end portions of the cross beam, both longitudinal direction end portions of the plate springs being respectively arranged above the axle box main bodies to be respectively supported by the axle box main bodies. | 03-26-2015 |
| 20150096456 | RAILCAR TRUCK - In a railcar truck in which secondary springs are disposed between the railcar truck and a carbody of the railcar, the railcar truck has a pair of side beams having concavities configured to receive the secondary springs. Each of the side beams has a side beam outer wall, a side beam inner wall, a side beam lower wall and a side beam upper wall, and the side beam upper wall includes an opening through which the received secondary spring projects. The concavity is formed by the side beam outer wall, the side beam inner wall and the side beam lower wall, and receive the secondary spring through the opening. | 04-09-2015 |
| 20150344047 | RAILCAR BOGIE - A railcar bogie includes: a cross-beam supporting a carbody; pair of axles at both cross-beam sides in car longitudinal direction and extending in car-width direction; bearings at both car-width direction sides of each axle and rotatably supporting axles; axle-boxes accommodating respective bearings; plate-springs supporting both car-width direction end-portions of the cross-beam and extending in car longitudinal direction, both car longitudinal direction end-portions of each plate-springs supported by axle-boxes; pressing members at both car-width direction end-portions of the cross-beam placed on respective car longitudinal direction middle-portions of plate-springs, lower surface of a portion of each pressing member having a convex downward circular-arc shape in side-view, the portion pressing the plate-spring, a middle-portion upper surface of each plate-spring having convex downward circular-arc shape in side-view, the middle-portion pressed by the pressing member, and a lower surface curvature of the pressing member larger than the upper surface curvature of the middle plate-spring portion. | 12-03-2015 |
| 20150367866 | Swing Bolster, Swing Bolster Vibration Reduction Assembly and Bogie - The disclosure discloses a swing bolster, a swing bolster vibration reduction assembly and a bogie. The swing bolster includes a body, wherein a mounting cavity for mounting a friction block is formed in two ends of the body; the mounting cavity is provided with a first horizontal opening and a second horizontal opening, which are opposite to each other; and opening directions of the first horizontal opening and the second horizontal opening are perpendicular to an extending direction of the body. The friction block is not matched with the swing bolster through slopes, and a movement direction of the swing bolster is perpendicular to a movement direction of the friction block relative to the swing bolster, so that a vibration reduction effect of the bogie in an unloaded state is ensured, and using reliability of the swing bolster is ensured. | 12-24-2015 |
| 20150367867 | BOGIE AND AXLE BOX SUSPENSION POSITIONING DEVICE THEREOF - An axle box suspension positioning device for a railway vehicle is provided according to the present application, which includes a guide column assembly. The guide column assembly includes a fixed end connected to a frame of the railway vehicle, and a free end which is extendable and retractable from an opening of the axle box. An elastic positioning component is provided in the opening, and the elastic positioning component limits a movement of the free end along a running direction of the vehicle with respect to the frame. The arrangement of the elastic positioning component enables the axle box suspension positioning device to have a large positioning rigidity. A bogie having the axle box suspension positioning device is further provided according to the present application. | 12-24-2015 |
| 20160082985 | RAILCAR BOGIE - A railcar bogie includes: a bogie frame including a cross beam and plate springs, the plate springs supporting both respective car width direction end portions of the cross beam and extending in a car longitudinal direction; axles extending in a car width direction; bearings provided at both respective car width direction sides of each of the axles; axle boxes accommodating the respective bearings and supporting the plate springs from below; and rubbing plates provided on an upper surface of the bogie frame to slidingly contact respective rubbed plates provided on a lower surface of a bolster. In a plan view, each of the rubbing plates is arranged within a region where the cross beam and the plate spring intersect with each other and is arranged on a center line of the plate spring, the center line extending in the car longitudinal direction. | 03-24-2016 |
| 105197100 | Leaf and coil | 1 |
| 20160090109 | ELASTIC SIDE BEARING ASSEMBLY SYSTEM FOR RAILWAY VEHICLES - The present invention discloses an elastic side bearing assembly system for railway vehicles, including a side bearing body, a side bearing seat, a first ball hinge assembly, a connecting rod and a second ball hinge assembly, side bearing body connected to side bearing seat via first ball hinge assembly, connecting rod and second ball hinge assembly, first ball hinge assembly provided below one end of side bearing body, second ball hinge assembly provided above side bearing seat at different end with respect to first ball hinge assembly, first ball hinge assembly connected to second ball hinge assembly via connecting rod; side bearing springs provided between side bearing body and side bearing seat, stoppers provided above side bearing seat, and side bearing springs connected to side bearing body and side bearing seat respectively by extending through stoppers; a side bearing wear plate provided above side bearing body. | 03-31-2016 |
| 105198000 | Rocking | 1 |
| 20100139521 | RAIL ROAD CAR TRUCK WITH ROCKING SIDEFRAME - A swing motion rail road freight car truck is provided that does not have lateral underslung cross bracing in the nature of a transom, a frame brace, or lateral rods. The truck has a truck bolster and a pair of sideframes, the truck bolster being mounted transversely relative to the sideframes. The sideframes have spring seats for the groups of springs. The springs seats may be on rockers, or may be rigidly mounted in the sideframes. Friction dampers are provided in inboard and outboard pairs. The biasing force on the dampers urges then to that act between the bolster ands and sideframes to resist parallelogram deflection of the truck. | 06-10-2010 |
| 105198100 | Pneumatic spring | 4 |
| 20090133601 | Electronic Pneumatic Spring Controller for Reducing Air Consumption and Rapidly Adjusting the Setpoint Level - Disclosed is a railway vehicle comprising at least one pneumatic spring for supporting a body. At least one mechanically actuated valve is disposed in at least one air supply/discharge tube of the at least one pneumatic spring in order to control air exchange of the at least one pneumatic spring. At least one switching means is provided between the at least one mechanical valve and the at least one pneumatic spring in the at least one air supply/discharge tube in order to control air exchange. Alternatively, at least one switching means is arranged between the at least one mechanical valve and at least one pressure source while at least one additional switching means is placed in a tube that connects the at least one mechanical valve to an environment in order to control air exchange. | 05-28-2009 |
| 20110315044 | GUIDEWAY TYPE VEHICLE - To perform the height adjustment of the vehicle body with high precision by improving the sensitivity of measuring the height of the vehicle without making the dead-band smaller, the present invention proposes a guideway-type vehicle comprising: a vehicle body | 12-29-2011 |
| 20140230687 | END MEMBER ASSEMBLIES AS WELL AS GAS SPRING ASSEMBLIES AND METHODS OF MANUFACTURE INCLUDING SAME - An end member assembly dimensioned for securement to an associated flexible spring member of an associated gas spring assembly. The end member assembly can include a base wall and a mounting wall disposed in axially-spaced relation to the base wall. A compliant support structure is disposed between the base and mounting walls. The compliant support structure includes at least one compliant element that includes a compliant element body and one or more reinforcing plies at least partially embedded within the compliant element body. Rigid elements can be disposed between adjacent compliant elements if two or more compliant elements are included. A gas spring assembly and a method of manufacture can include one or more of such end member assemblies. | 08-21-2014 |
| 20170232979 | HIGH-SPEED RAIL TRAIN BOGIE AND FRAME THEREOF | 08-17-2017 |
| 105198200 | Bolster movement dampened by snubber | 17 |
| 20090031918 | Railway Bogies - This invention relates to bogies for railway rolling stock. In particular it relates to suspension arrangements for such bogies wherein the frame is mounted on a spring suspension arrangement. In one embodiment the spring suspension arrangement comprises two groups of springs on either side of a wheel axle ( | 02-05-2009 |
| 20090133602 | Snubbing device for the railroad car - This invention relates to the field of mechanical engineering, notably to snubbing devices with friction shock absorbers used in railroad car for freight cars. | 05-28-2009 |
| 20090158956 | RAIL ROAD CAR TRUCK AND FITTING THEREFOR - A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to deflection that is proportional to the weight carried across the interface. The truck may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behavior. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both. The friction dampers may operate to yield upward and downward friction forces that are not overly unequal. The friction dampers may be mounted in a four-cornered arrangement at each end of the truck bolster. The spring groups may include sub-groups of springs of different heights | 06-25-2009 |
| 20100095864 | RAIL ROAD FREIGHT CAR WITH DAMPED SUSPENSION - An auto rack rail road freight car is provided for carrying low density, relatively high value, relatively fragile lading. The car has trucks that have multiple dampers in a four corner arrangement in the sideframes. The dampers may include damper wedges having primary and secondary wedge angles. The spring groups in the side frames are relatively soft, giving a low vertical bounce natural frequency. In an articulated embodiment, differentially placed ballast is mounted in a biased arrangement to load the coupler end trucks to encourage a dynamic response similar to the dynamic response of the internal trucks. | 04-22-2010 |
| 20100162919 | Suspension for a Rail Vehicle - A suspension for a rail vehicle includes at least one spring ( | 07-01-2010 |
| 20120318166 | Railway freight car truck - An improved railway car truck is provided that includes two sideframes and a bolster. The bolster has laterally opposite ends, each end extending into and supported within a sideframe opening on a spring group. Each sideframe also has a pedestal opening at each end to receive a bearing adapter assembly. The railway car truck also includes a transom extending into and supported within a sideframe opening. The spring group is supported at each transom end. A lateral damping cylinder is connected between the bolster and the transom. A vertical damping cylinder is connected between the bolster and the sideframe. | 12-20-2012 |
| 20130008337 | BOGIE - The invention provides a bogie which comprises a bolster, two side frames and four constant contact dampers, two sides of two ends of the bolster are respectively provided with a wedge pocket; the four constant contact dampers are respectively arranged in four wedge pockets, and each of the four constant contact dampers comprises a wedge and a damping spring; the damping spring is arranged in an inner cavity of the wedge; one end of the damping spring bears against a top inner surface of the inner cavity of the wedge, and the other end of the damping spring bears against a bottom plate of the wedge pocket, wherein the bogie further comprises four through holes and four ejectors which respectively correspond to the four constant contact dampers; the through holes are arranged on the bottom plate, and the position of each of the four through holes on the bottom plate corresponds to the position where the damping spring bears against the bottom plate and a load spring of the bogie; and one end of the ejector penetrates into the damping spring, and the other end of the ejector bears against the load spring through the through hole. The bogie of the present invention solves the technical problem that the deformation of the damping springs keeps constant whether a car is empty or loaded in the prior art, and thus improves the damping effect of the bogie. | 01-10-2013 |
| 20140102330 | SPLIT WEDGE AND METHOD FOR MAKING SAME - A method of manufacturing a friction wedge of a rail car includes forming, in drag and cope portions of a mold, at least one cavity that defines at least some exterior features of at least one friction wedge. At least one core is inserted into the drag portion adjacent to the cavity. The core includes at least one surface configured to define a column face of the friction wedge. Rigging is formed in the drag and cope portion of the mold. The rigging includes a down sprue, at least one ingate, and at least one runner for directing molten material to the cavity. Molten material is poured into the mold to form the friction wedge casting. The friction wedge casting is removed from the mold. Rigging is removed from the friction wedge casting and the friction wedge casting is finished. | 04-17-2014 |
| 20140109792 | RAIL ROAD CAR TRUCK AND FITTING THEREFOR - A rail road freight car truck has a truck bolster mounted transversely to a side frame pair. A mounting interface between the axel ends and the sideframe pedestals allows lateral swing truck like rocking motion of the sideframes combined with a longitudinal selfsteering capability by use of a longitudinally oriented rocker that permits resistance to deflection proportionally to the weight carried across the interface. The truck may have auxiliary centering elements made of resilient elastomeric material mounted in the pedestal seats and may also have friction dampers provided with brake linings or like on the face engaging the sideframe columns, on the slope face, having a disinclination to stick-slip behavior and operate to yield upward and downward friction forces that are not overly unequal and may be mounted in a four-cornered arrangement at each end of the truck bolster. Spring groups may include subgroups of springs of differing heights. | 04-24-2014 |
| 20150096457 | Rail Vehicle Unit - A rail vehicle unit, having a running gear and a wagon body unit. The wagon body unit is supported on the running gear via a suspension device, a first rotational buffer device and a second rotational buffer device being associated to the running gear and the wagon body unit. The first rotational buffer device and the second rotational buffer device are adapted to damp a rotational motion between the running gear and the wagon body unit about a rotational axis parallel to the height direction. The first rotational buffer device and the second rotational buffer device are configured to form a traction link between the running gear and the wagon body unit. | 04-09-2015 |
| 20160075351 | SIDE BEARING FOR BOGIE OF A RAILWAY CAR - (57) A side bearing for a bogie of a railway car is provided limiting reciprocal movement of the bogie and underframe of a railway car. The side bearing comprises a support cap (1) mounted spring loaded by means of resilient members (2) into a box-like supporting body (3). Further, the side bearing comprises a limiter (4) locked in the box-like supporting body (3). The limiter (4) can be formed as a stud, bolt or rod extending through aligned continuous slots (1.1) and (3.1) which are provided through guiding walls of the box-like supporting body (3) and guiding walls of the support cap (1). Using the limiter for the support cap (4) provides permanent or one-piece interconnection between the support cap (1) and the box-like supporting body (3) both during operation and maintenance of a railway car. | 03-17-2016 |
| 105198400 | Snubber biasing spring also supports bolster | 4 |
| 20080264292 | Suspension for a rail vehicle - A suspension for a rail vehicle includes a bogie pedestal | 10-30-2008 |
| 20100043668 | RAIL CAR SUSPENSION DAMPING - A freight rail car suspension has independent but co-operating springs; a first spring is load carrying and has a variable damping function and a second control spring operates on a friction shoe to apply a constant damping component. A practical embodiment has a friction shoe engaged for vertical displacement by the first spring which is mounted on a side frame and the second spring is obliquely arranged between the bolster of the bogie and the friction shoe, which has guides to cause it to move into greater frictional engagement upon load being applied through the spring. This arrangement provides a dual damping characteristic involving both constant damping and variable damping forces. | 02-25-2010 |
| 20140261064 | STABILIZED RAILWAY FREIGHT CAR TRUCK - A stabilized railway car truck consists of two side frames and a holster. The bolster has laterally opposite ends, each end extending into and supported within a side frame opening on a spring group. The stabilized railway car truck also includes a transom extending into, and supported within, a side frame opening. The spring group is supported at each transom end. Each side frame has a pedestal opening at each end that receive a rotating lug to accept a elastomeric steering pad and bearing adapter. The attachment of the side frames and transom is a rigid pivotal connection. Friction shoes between the side frames and bolster provide damping of an initial low to a high rate friction once engaged. The pivotal decoupling of the side frame and transom, and the lateral movement of the friction shoes to the bolster, eliminates track displacement irregularities from reacting at the bolster and into the vehicle. | 09-18-2014 |
| 20160059870 | RAILWAY CAR TRUCK WITH FRICTION DAMPING - A three piece railway freight truck is comprised of two laterally spaced side frames between which a bolster extends. Suspension load springs support the bolster, and control springs support friction shoes. | 03-03-2016 |
| 105198500 | Bolster-mounted snubber | 2 |
| 20100186621 | FRICTION DAMPING SYSTEM FOR A RAILWAY TRUCK - A railway truck has two wheel sets, a bolster, and two side frames each having a bolster opening. At least one friction plate is connected to one of the bolster openings, a car body, and end portions of the bolster and extends generally vertically. Two suspension assemblies operatively connect the bolster to the side frames. Each suspension assembly includes at least one load supporting spring biasing a corresponding end portion of the bolster upwardly, two wedges disposed on either side of the at least one friction plate, and two springs biasing the wedges. Each wedge has a generally vertical and a sloping face. The two springs bias the sloping faces of the wedges against corresponding sloping faces provided in one of the bolster openings and end portions of the bolster such that the generally vertical faces of the wedges are pressed into contact with the at least one friction plate. | 07-29-2010 |
| 20110315045 | RAIL ROAD CAR AND TRUCK THEREFOR - A railroad car truck for a railroad freight car, such as an autorack car, has a bolster mounted cross-wise between two sideframes. The bolster ends are mounted on respective spring groups carried by the sideframes. The bolster can translate laterally relative to the sideframes. The side frames are mounted to swing laterally relative to the wheel sets, and hence relative to the rails. Resistance to lateral deflection is provided by the resistance of the sideframes to the pendulum swinging motion, and by shear in the spring groups. The truck has a doubled damper arrangement of dampers in a four-cornered layout at each end of the bolster, giving a flexing resistance to yaw between the sideframes and the bolster ends. The doubled damper arrangement works against large wear plates mounted on the sideframe columns. The large wear plates are mounted normal to the dampers and square to the sideframes. | 12-29-2011 |
| 105198600 | Linear torsion spring | 1 |
| 20160251023 | PLATE SPRING COVER AND RAILCAR BOGIE INCLUDING PLATE SPRING COVER | 09-01-2016 |
| 105198700 | Nonmetallic spring or cushion | 1 |
| 20080229968 | Railway Bogie - A railway bogie includes at least two spring units per one wheel, a bogie frame and an essentially single piece adapter which bridges the spring units and is arranged between the spring units on the one side and the bogie frame on the other side. | 09-25-2008 |
