Skip over navigation
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)
Definition statement
This subclass/group covers:

Parts of railway vehicles that are located under the body of the car, and that serves to support, guide and move the body on the rail.

Underframes (making railway vehicle underframes by forging or pressing B21K 7/12)
Definition statement
This subclass/group covers:

Constructional features of frameworks for carrying the main body structure.

Following drawing shows one example:

Types of bogies (B61F 5/00 takes precedence)
Definition statement
This subclass/group covers:

Constructional features of bogies relating to the numbers of driven/undriven axle used, bogies for articulated railway vehicles, and air drag reducing details.

Following drawing shows one example:

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
Definition statement
This subclass/group covers:

Details of bogies and their connections to the vehicle underframe to improve the running characteristic of the bogie, to reduce wear of the rail and prevent derailment of the vehicle.

Typical examples are:

  • Method for optimizin guidance of railway vehicles.
  • Railroad car truck suspension yaw stabilizer.
  • Pneumatic spring between bogie and underframe.
  • Self-steering bogies.
  • Railway truck leveling device.
  • Bogie for tilting-body type railcar.
  • Lightweight truck bolster for railcar.

Following drawing show two examples:

Informative references
Attention is drawn to the following places, which may be of interest for search:
Molding
Vehicle suspension arrangement in general
Stabilising vehicles bodies
Springs and shock absorbers in general
Rail vehicles equipped for use on tracks of different width
Definition statement
This subclass/group covers:

The title of this group is self-explanatory and do not need to be more specified.

Following drawing shows one example:

Informative references
Attention is drawn to the following places, which may be of interest for search:
Adjustable axle units for varying track
Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
Definition statement
This subclass/group covers:

Devices and methods to prevent derailment of the railway vehicle. It concerns additional components that are mounted on the vehicle.

Typical examples are:

  • Derailment detector unit.
  • Rail vehicle with guiding device.
  • Inductive derailment sensor.

Following drawing shows one example (EP1422119):

References relevant to classification in this group
This subclass/group does not cover:
Preventing derailment by improving bogie components, e.g. improving the characteristics of the springs in
Informative references
Attention is drawn to the following places, which may be of interest for search:
Power and free systems with vehicles rolling trackless on the ground
Rail vehicles characterised by rail-engaging elements other than wheels, e.g. balls
Definition statement
This subclass/group covers:

The title of this group is self-explanatory and do not need to be more specified.

Following drawing shows one example (DE29509473U):

Rail vehicles characterised by wheel arrangements, not otherwise provided for
Definition statement
This subclass/group covers:

Railway vehicles having a wheel arrangement configuration that is not of the conventional type.

Following drawing shows one example:

Informative references
Attention is drawn to the following places, which may be of interest for search:
Wheel in general
Wheel characterised by rail-engaging elements
B60P17/00
Axle-boxes (mounting or securing axle-boxes B61F 5/26; lubrication B61F 17/00; bearings in general F16C)
Definition statement
This subclass/group covers:

The titles of this group are self-explanatory and do not need to be more specified.

Following drawing shows one example:

Informative references
Attention is drawn to the following places, which may be of interest for search:
Rotary current collectors with liquid contacts
Rotary current collectors with brush holders
Speed measuring
Lubrication specially adapted for axle-boxes of rail vehicles (lubrication in general F16N)
Definition statement
This subclass/group covers:

The titles of this group are self-explanatory and do not need to be more specified.

Following drawing shows one example:

Wheel guards; Bumpers; Obstruction removers or the like (for vehicles in general B60R 19/00)
Definition statement
This subclass/group covers:

Devices and methods to protect the railway vehicle components from obstacle, e.g. ballast, or to minimize consequences of collisions with pedestrians.

Typical examples are:

  • Method and device to detect impacts on specific zones on a railway vehicle.
  • Collision protection system for rail vehicles.
  • Track sweeper for rail vehicle.

Following drawings show two examples:

Informative references
Attention is drawn to the following places, which may be of interest for search:
Buffer cars
Subject matter not provided for in other groups of this subclass
Definition statement
This subclass/group covers:

Devices and methods that are not in B61F 1/00 to B61F 19/00.

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013