Folding type bicycle

Claim 1

A PORTABLE FOLDING TYPE BICYCLE COMPRISING A FRAMEWORK DIVIDED INTO A FORE SECTION TO WHICH A STEERABLE ASSEMBLY INCLUDING A FRONT WHEEL AND A HANDLE-BAR IS ROTATABLY SECURED, A REAR SECTION TO WHICH A SADDLE SEAT, A REAR WHEEL AND PEDAL AND TRANSMISSION MEANS TO DRIVE SAID REAR WHEEL ARE SECURED, AND HINGE MEANS CONNECTING SAID SECTIONS, CHARACTERIZED IN THAT SAID FRAMEWORK FORE SECTION COMPRISES A FIRST FORWARDLY INCLINED STRAIGHT TUBULAR COMPONENT, AND THE SAID REAR SECTION COMPRISES A MIDDLE PORTION AND A REAR UPWARDLY DIRECTED FRAMING TO SUPPORT SAID REAR WHEEL AND CONNECTED TO SAID REAR PORTION AT VERTICALLY SPACED LOCATIONS THEREOF, AND IN THAT SAID HINGE MEANS IS LOCATED BETWEEN SAID FIRST COMPONENT AND SAID MIDDLE PORTION OF SAID OTHER COMPONENT AND INCLUDES COABUTTING PLATE PARTS SECURED TO SAID FORE AND REAR SECTION OF FRAMEWORK, SAID PLATE PLARTS HAVING A HINGE CONNECTION FORMED AT A LOCATION LATERIALLY SPACED FROM THE PLANE OF SYMMETRY OF SAID FRAMEWORK, LOCKING MEANS LOCATED AT AN OPPOSITE LATERAL SPACING FROM SAID PLANE TO RELEASABLY CONNECT TO EACH OTHER SAID PLATE PARTS AT THEIR ENDS FAR FROM SAID HINGE CONNECTION, AND SLANTING ABUTTING FACES ON SAID PLATE PARTS TO INDUCE A TRANSVERSE PULL ON SAID HINGE CONNECTION UPON LOCKING OF SAID LOCKING MEANS.