Mechanical joint assembly

Abstract

Abstract A MECHANICAL JOINT ASSEMBLY HAVING A PREDETERMINED SEQUENCE OF MOVEMENTS COMPRISING: UPPER AND LOWER RAIL MEMBERS JOINED TOGETHER BY A PIVOT PIN, SAID UPPER MEMBER HAVING A REARWARDLY PROJECTING CAM LOBE AT ITS LOWER END AND SAID LOWER MEMBER HAVING AN UPPER PORTION ADAPTED TO RECEIVE THE UPPER MEMBER, A RECESSED CAM ELEMENT PIVOTALLY MOUNTED ON THE UPPER PORTION OF THE LOWER MEMBER AND ADAPTED TO FRICTIONALLY ENGAGE WITH SAID CAM LOBE AS THE MEMBERS ROTATE WITH RESPECT TO EACH OTHER, BIASING MEANS URGING SAID ELEMENT INTO CONTACT WITH THE CAM LOBE, AND AN ENLARGED ELONGATED SLOT IN ONE OF SAID MEMBERS FOR RECEIVING SAID PIVOT PIN. THE ASSEMBLY IS ARRANGED SUCH THAT THE PIN SLIDES FREELY WITHIN THE SLOT AS THE LOWER MEMBER ROTATES THROUGH AN INITIAL ARE WITH RESPECT TO THE UPPER MEMBER. FURTHER ROTATION OF THE LOWER MEMBER BRINGS THE PIN INTO ENGAGEMENT WITH THE SLOT, WHEREBY THE PIN IS HELD FROM SLIDING AND ACTS AS THE PIVOT POINT FOR THE LOWER MEMBER. THE ASSEMBLY ADDITIONALLY INCLUDES STOP MEANS FOR POSITIVELY LOCKING THE MEMBERS IN AN ALIGNED RELATIONSHIP.

Inventors

• 👤 Rainer K Schmid

Bibliographic Details