WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B61F　RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES, ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING; WHEEL GUARDS; OBSTRUCTION REMOVERS, OR THE LIKE (for vehicles in general B60; axles, wheels B60B; tyres B60C)

B61F 1/00 Underframes (making railway vehicle underframes by forging or pressing B21K 7/12)

B61F 1/02 ・with a single central sill

B61F 1/04 ・of triangulated type

B61F 1/06 ・specially adapted for locomotives or motor-driven railcars

B61F 1/08 ・Details

B61F 1/10 ・・End constructions

B61F 1/12 ・・Cross bearers

B61F 1/14 ・・Attaching or supporting vehicle body-structure

B61F 3/00 Types of bogies (B61F 5/00 takes precedence)

B61F 3/02 ・with more than one axle

B61F 3/04 ・・with driven axles or wheels

B61F 3/06 ・・・with three or more axles

B61F 3/08 ・・without driven axles or wheels

B61F 3/10 ・・・with three or more axles

B61F 3/12 ・specially modified for carrying adjacent vehicle bodies of articulated trains

B61F 3/125 ・・{with more than one axle or wheel set}

B61F 3/14 ・specially modified for reducing air resistance

B61F 3/16 ・with a separate axle for each wheel

B61F 5/00 Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves

B61F 5/02 ・Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies

B61F 5/04 ・・Bolster supports or mountings (side bearings B61F 5/14)

B61F 5/06 ・・・incorporating metal springs

B61F 5/08 ・・・incorporating rubber springs

B61F 5/10 ・・・incorporating fluid springs

B61F 5/12 ・・・incorporating dampers

B61F 5/122 ・・・・{with friction surfaces}

B61F 5/125 ・・・・{with rubber elements (B61F 5/08 takes precedence)}

B61F 5/127 ・・・・{with fluid as a damping medium}

B61F 5/14 ・・Side bearings

B61F 5/142 ・・・{made of rubber elements, graphite or the like}

B61F 5/144 ・・・{comprising fluid damping devices (B61F 5/146 takes precedence)}

B61F 5/146 ・・・{of the oil bath type; Lubrication devices for side bearings}

B61F 5/148 ・・・{between bolsterless bogies and underframes (B61F 5/142 - B61F 5/146 take precedence)}

B61F 5/16 ・・Centre bearings or other swivel connections between underframes and bolsters or bogies

B61F 5/18 ・・・King-bolts

B61F 5/20 ・・・with springs allowing transverse movements

B61F 5/22 ・・Guiding of the vehicle underframes with respect to the bogies

B61F 5/24 ・・・Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes

B61F 5/245 ・・・・{by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode}

B61F 5/26 ・Mounting or securing axle-boxes in vehicle or bogie underframes

B61F 5/28 ・・Axle-boxes integral with, or directly secured to, vehicle or bogie underframes

B61F 5/30 ・・Axle-boxes mounted for movement under spring control in vehicle or bogie underframes ({B61F 5/36 takes precedence over B61F 5/305 - B61F 5/34})

B61F 5/301 ・・・{incorporating metal springs}

B61F 5/302 ・・・・{Leaf springs}

B61F 5/304 ・・・・{Torsion-bar springs}

B61F 5/305 ・・・{incorporating rubber springs}

B61F 5/307 ・・・{incorporating fluid springs}

B61F 5/308 ・・・{incorporating damping devices}

B61F 5/32 ・・・Guides, e.g. plates, for axle-boxes

B61F 5/325 ・・・・{The guiding device including swinging arms or the like to ensure the parallelism of the axles}

B61F 5/34 ・・・・Wedge mechanisms for adjusting clearance between underframes and axles

B61F 5/36 ・・・Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes

B61F 5/38 ・Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles

B61F 5/383 ・・{Adjustment controlled by non-mechanical devices, e.g. scanning trackside elements}

B61F 5/386 ・・{fluid actuated}

B61F 5/40 ・・Bogies with side frames mounted for longitudinal relative movements

B61F 5/42 ・・Adjustment controlled by buffer or coupling gear

B61F 5/44 ・・Adjustment controlled by movements of vehicle body

B61F 5/46 ・・Adjustment controlled by a sliding axle under the same vehicle underframe

B61F 5/48 ・・Trailing or leading bogies for locomotives or motor- driven railcars (B61F 5/40 takes precedence)

B61F 5/50 ・Other details

B61F 5/52 ・・Bogie frames

B61F 5/523 ・・・{comprising parts made from fibre-reinforced matrix material}

B61F 5/526 ・・・{comprising noise reducing devices}

B61F 7/00 Rail vehicles equipped for use on tracks of different width

B61F 9/00 Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels

B61F 9/005 ・{by use of non-mechanical means, e.g. acoustic or electromagnetic devices}

B61F 11/00 Rail vehicles characterised by rail-engaging elements other than wheels, e.g. balls

B61F 13/00 Rail vehicles characterised by wheel arrangements, not otherwise provided for

B61F 15/00 Axle-boxes (mounting or securing axle-boxes B61F 5/26; lubrication B61F 17/00; bearings in general F16C)

B61F 15/02 ・with journal bearings

B61F 15/04 ・・for locomotives

B61F 15/06 ・・for cars

B61F 15/08 ・・the axle being slidable or tiltable in the bearings

B61F 15/10 ・・・and having springs opposing such movements

B61F 15/12 ・with roller, needle, or ball bearings

B61F 15/14 ・・constructed for taking-up axial pressure

B61F 15/16 ・・the axle being slidable or tiltable in the bearings

B61F 15/18 ・・・and having springs opposing such movements

B61F 15/20 ・Details

B61F 15/22 ・・Sealing means preventing entrance of dust or leakage of oil

B61F 15/24 ・・・preventing oil leakage when vehicle is tilted or inverted

B61F 15/26 ・・Covers; Sealing thereof

B61F 15/28 ・・Axle-boxes modified to ensure electrical conductivity

B61F 17/00 Lubrication specially adapted for axle-boxes of rail vehicles (lubrication in general F16N)

B61F 17/02 ・with oil

B61F 17/04 ・・Lubrication by stationary devices

B61F 17/06 ・・・by means of a wick or the like

B61F 17/08 ・・・・Devices for pressing the wick or the like against the rotating axle

B61F 17/10 ・・・by means of an oil bath

B61F 17/12 ・・・by gravity

B61F 17/14 ・・Rotating lubricating devices

B61F 17/16 ・・・with rings

B61F 17/18 ・・・with chains

B61F 17/20 ・・・with scoops or the like attached to, or coupled with, the axle

B61F 17/22 ・・・with discs, rollers, or belts engaging the axle

B61F 17/24 ・・by built-in lubricating pumps

B61F 17/26 ・・by external feeding means, e.g. pneumatic devices

B61F 17/28 ・・Applications of oil cleaners not otherwise provided for

B61F 17/30 ・with grease

B61F 17/32 ・・by manually-operated lubricators, e.g. screw cups

B61F 17/34 ・・by automatic means, e.g. with spring action

B61F 17/36 ・with other, e.g. mixed, lubricating agents

B61F 19/00 Wheel guards; Bumpers; Obstruction removers or the like (for vehicles in general B60R 19/00)

B61F 19/02 ・Wheel guards

B61F 19/04 ・Bumpers or like collision guards

B61F 19/06 ・Nets, catchers, or the like for catching obstacles or removing them from the track (mailbag catchers B61K 1/02)

B61F 19/08 ・・of the drop-down type

B61F 19/10 ・・・automatically operated by engagement with obstacle

B61F 99/00 Subject matter not provided for in other groups of this subclass