Class / Patent application number | Description | Number of patent applications / Date published |
238017000 | GUARDRAILS | 7 |
20110049254 | Wheel Guard Apparatus - A wheel guard apparatus capable of preventing a wheel from derailing and preventing a vehicle from seriously deviating from a track even if the wheel has derailed includes a fixed portion fixed to a railroad tie located between main line rails; a movable portion supported by a rotating shaft provided on the fixed portion and extending in a horizontal direction and configured to be rotatable around the rotating shaft toward a track center side; and a guard rail located at a position separated from the rotating shaft of the movable portion and held to extend in parallel with the main line rail. The guard rail includes an outer stopper portion configured to prevent the wheel from derailing toward an inner side of the main line rail and an inner stopper portion configured to prevent a derailed vehicle from deviating to an outer side of a track. | 03-03-2011 |
20110121088 | Wheel Guard Device - The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety. | 05-26-2011 |
20110121089 | Guard Rail Apparatus for Guiding Derailed Wheels - The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety. | 05-26-2011 |
20110204153 | TRACK SYSTEM INCLUDING A GUARDRAIL - A track system for a railway system includes a base plate configured to be supported on a railroad tie. The system also includes a drive rail and a guard rail. The drive rail includes a head portion, a web portion, and a base portion. The head portion is configured such that wheels of a train car used in the railway system roll thereon. The web portion connects the head portion and the base portion. The base portion is supported on the base plate. The guardrail includes a head portion, a web portion, and a base portion. The head portion of the guardrail is configured to contact the wheels to prevent the wheels from slipping off the drive rail. The web portion of the guardrail connects the head portion of the guardrail and the base portion of the guardrail. The base portion of the guardrail is retained in a support on the base plate. Cross-sections of each of the head portion of the drive rail and the web portion of the drive rail are substantially the same as cross-sections of the head portion of the guardrail and the web portion of the guardrail, respectively. | 08-25-2011 |
20120037715 | TRUCK LATERAL MOTION RESTRICTING DEVICE - Disclosed is a truck lateral motion restricting device which can prevent a large impact from being applied to a stopper when the truck lateral motion restricting device is operated in the derailment. The device comprises a guard angle ( | 02-16-2012 |
20120168525 | GUIDE RAIL - A guide rail that is provided in a track and is brought into contact with a guide wheel of a vehicle to restrict a rolling direction of a running wheel of the vehicle, to thereby guide the vehicle along the track, includes: a rail that comprises a guide portion formed with a guide rail surface with which the guide wheel is brought into contact; and a vibration-isolating member that is provided so as to be in contact with a back surface of the guide rail surface of the guide portion. | 07-05-2012 |
238018000 | Spring | 1 |
20090200389 | Safety Device for a Train - A derailment prevention guard includes a guard member ( | 08-13-2009 |