how to jump Perpendicular to the rotating platform

Hello , first of all i wanted to apologize for my bad English. i have a simple jumping game . in this game there are rotating platforms , and a game object , whenever the player clicks mouse the game object should jump and stick to the next platform and rotate with it ,until the player clicks again. i want the game object to jump Perpendicular to the rotating platform` (again sorry for my bad English) but now in my code it dose not. and if i use Vector3.up the game object will fall down ,i've tried every thing but it dose not work

i want the game object to jump in the direction of green arrow and stick to the next platform

, here is my code

     Rigidbody2D Rig;
     public float Force =500;
     public bool gamejump = true;
     public Transform platformParent;   
     bool playerforce = false;
     bool setpos = false;
     Vector2 pos = new Vector2(0, 0);
     public Collider2D Ccollider;
     public bool bottom =false;
     public bool SPressed = false;
     void Start()
     {
         Rig = GetComponent<Rigidbody2D>();
         Ccollider = GetComponent<CircleCollider2D>();
     }
     void Update()
     {
         if (SPressed == true && Input.GetKeyDown(KeyCode.Space))
         {
             print("true");
             gamejump = true;
             Rig.AddForce(transform.up * Force);
         }    
 
         if (gamejump == true)
         {
             transform.SetParent(null);
             Rig.isKinematic = false;
             setpos = false;
         }
         else
         {
             transform.SetParent(platformParent);
             Rig.AddForce(new Vector2(0, 0));
             Rig.isKinematic = true;
             if (setpos == false)
             {
                 setpos = true;
                 transform.position = pos;
             }
 
             /*    if(Input.GetMouseButtonDown(0))
               {
                   SPressed = true;
               }
                 if(Input.GetMouseButtonUp(0))
               {
                   SPressed = false;
               }
            }*/
         }
     }
     void OnTriggerStay2D(Collider2D other)
     {
         if (other.tag == "Rotate")
         {
             SPressed = true;
             // if(SPressed==true)
             //if (Input.GetKey(KeyCode.Space) )  
             // if (Input.GetMouseButtonDown(0))
             //  {
             // gamejump = true;
             /* if (bottom == true)
              {
                  Rig.AddForce(other.transform.up * Force);               
              }
              else
              {
                  Rig.AddForce(other.transform.up * -Force);
 
              }
              }
         */
             //  }  
         }
     }
 
     void OnCollisionEnter2D(Collision2D collision)
     {
         if (collision.gameObject.tag == "Rotate")
         {
             ContactPoint2D contact = collision.contacts[0];
             pos = contact.point;
             if (collision.contacts.Length>0)
             {
                 bottom = true;
             }
             else
             {
                 bottom = false;
             }
             gamejump = false;  
         }
     }
     public void OnCollisionExit2D(Collision2D collision)
     {
         collision.collider.enabled = false;
     }
 }
 

i have to press key space 3 times to jump and i don't know why! so that is my main problem for now.