A spreader frame, comprising a set of outer bars and a corresponding set of inner bars, each outer bar having a series of apertures and each inner bar having a spring-biased pin shaped and oriented to fit into any aperture of the series of apertures, each inner bar slidably engaging each corresponding outer bar to form an expandable beam having a first end and a second end, and each beam being connected at its first end and second end to a further beam to form a frame, wherein for each beam, each aperture of the series of apertures other than a selected aperture is filled with a corresponding outer bar pin, and the inner bar is slidable within the outer bar to bring the spring-biased pin in position to insert into the selected aperture to fix the size of the beam.
SPREADER FRAME
2018-01-25
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
VEHICLE FRAME AND SUSPENSION-TYPE TRANSPORT VEHICLE SPREADER
European Patent Office | 2023
|