Step apparatus for platform

Abstract

In order to provide a high-safety step apparatus for a platform which is easy to be installed, eliminates a difference between the top of a platform and a train floor, and fills a gap between a train body and an edge of a platform, a step 1 is placed on the top of the platform 10, an arm is connected to the step pivotally in the horizontal direction, a cover 7 is placed over the step 1, and the step 1 is moved from the home position to the extended position.

What we claim is:  
     
         1 . A step apparatus for a platform comprising a step which is provided on a platform and horizontally rotates to fill the gap between a train body and the edge of the platform, an arm having one end connected to said step and the other end connected to a rotary shaft, and a driving section which rotates said arm so that said step may move to a preset extended position; wherein said step is provided above or near the top of the platform.  
     
     
         2 . A step apparatus for a platform in accordance with    claim 1   ; wherein an unmovable cover is fixed to the platform to cover the step.  
     
     
         3 . A step apparatus for a platform in accordance with    claim 1   ; wherein a preset gap is provided between a train body and the edge of the step also in the extended position of the step.  
     
     
         4 . A step apparatus for a platform in accordance with    claim 1   ; wherein said step apparatus comprises two sets or more of said arm and said rotary shaft and said arms are different in length.  
     
     
         5 . A step apparatus for a platform in accordance with    claim 1   ; wherein said step apparatus comprises two sets or more of said arm and said rotary shaft and the angle between the step and one of said rotary shaft is different from the angle between the step and another rotary shaft.  
     
     
         6 . A step apparatus for a platform in accordance with    claim 1   ; wherein the edge of said step facing to the train body is parallel to the train body when the step is in the extended position.  
     
     
         7 . A step apparatus for a platform in accordance with    claim 1   ; wherein said step apparatus comprises two sets or more of said arm and said driving section which rotates said arm is connected to one pair of arms or rotary shafts only.  
     
     
         8 . A step apparatus for a platform in accordance with    claim 1   ; wherein said arms, said rotary shafts, and said driving section are provided above the step.  
     
     
         9 . A step apparatus for a platform in accordance with    claim 1   ; wherein said arms, said rotary shafts, and said driving section are provided below the step.  
     
     
         10 . A step apparatus for a platform in accordance with    claim 1   ; wherein a handle which enables manual movement of said arm and said step when said driving section is disabled is already mounted on said arm or can be mounted on the arm quickly.  
     
     
         11 . A step apparatus for a platform in accordance with    claim 1   ; wherein said step apparatus is provided on a movable guard fence which is separately provided on the platform.  
     
     
         12 . A step apparatus for a platform in accordance with    claim 1   ; wherein said step apparatus is driven interlocking with the movement of the movable guard fence which is separately provided on the platform.  
     
     
         13 . A step apparatus for a platform in accordance with    claim 1   ; wherein said step apparatus is driven interlocking with the movement of train doors.  
     
     
         14 . A step apparatus for a platform in accordance with    claim 1   ; further comprising an alarm unit which makes alarm sounds when detecting that the step is involuntarily in the extended position.  
     
     
         15 . A step apparatus for a platform in accordance with    claim 1   ; further comprising shock absorbing means or roller against collision with a train.