A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A rolling support for bleachers apparatus. The apparatus includes a frame, a plurality of wheel arrangements, each wheel arrangement including a strut to which a wheel is rotatably mounted, the strut pivotally mounted to the frame for movement between a retracted position and an extended position. The wheel arrangement also includes a spring biasing the strut for movement towards the extended position, a trigger arm pivotable between a locked position and an unlocked position and a spring biasing the trigger arm for movement towards the locking position.
A rolling support for bleachers apparatus. The apparatus includes a frame, a plurality of wheel arrangements, each wheel arrangement including a strut to which a wheel is rotatably mounted, the strut pivotally mounted to the frame for movement between a retracted position and an extended position. The wheel arrangement also includes a spring biasing the strut for movement towards the extended position, a trigger arm pivotable between a locked position and an unlocked position and a spring biasing the trigger arm for movement towards the locking position.
ROLLING SUPPORT FOR BLEACHERS
D'JOOS JIMMY (author)
2019-04-25
Patent
Electronic Resource
English
IPC:
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
FOOTBOARD ASSEMBLY FOR MULTI-STAGE BLEACHERS AND MULTI-STAGE BLEACHERS ASSEMBLY COMPRISING THE SAME
| European Patent Office | 2019