Platform lifting and carrying arm

Abstract

A platform lifting and carrying arm enables inflatable boats, jet ski and all kinds of cargo to be lifted from sea level and received on vessels. A hydraulic-driven arm system is used to receive cargo from the sea surface or port-coastal areas to the decks of boats. An arm system allows the system to be locked at deck level, regardless of hydraulic pressure, when loaded or unloaded. In this way, it is provided that mechanical lock will be activated with the loss of hydraulic pressure resistance caused by the failure of the hydraulic cylinder.

What is claimed is: 
     
         1 . An arm, comprising;
 a body, wherein the body is allowed to be connected to a boat,   a platform holder, wherein the platform holder holds a carrying platform,   a lifting piston, wherein the lifting piston allows the platform holder to go down and up at sea level, wherein a first end of the lifting piston is attached to the body, and a second end of the lifting piston pushes and pulls a part of a lower parallel,   a triangular intermediate coupling, wherein the triangular intermediate coupling allows the lower parallel and the platform holder to connect to each other, wherein
 a first side of the triangular intermediate coupling is freely attached by a shaft to an axis where an upper parallel is connected to the platform holder, 
 a second side of the triangular intermediate coupling is freely attached with a bolt to an end of the lower parallel, wherein the end of the lower parallel is not connected to the body, and 
 a third side of the triangular intermediate coupling is attached to an end of an angle piston, wherein the angle piston angles the platform holder, and 
   a conical lock, wherein the conical lock is configured to freely move angularly in a vertical plane to an outer wall of a vessel, wherein the platform holder meets by radial motion.