Patent ID: 6905461

Claim:
A bending control mechanism for an endoscope comprising: a bending portion provided in an insertion portion of the endoscope; a bending wire extended out from said bending portion in order to control said bending portion; a pulley made operable in linkage with a bending control lever through the shaft portion of the pulley, said bending control lever being provided in the control portion of said endoscope; a driving wire winding groove as spirally formed on the outer peripheral surface of said pulley as well as in the peripheral direction of the pulley; a driving wire wound around said driving wire winding groove of said pulley; a connection member connecting said driving wire with said bending wire; and a guide member provided in said control portion and including said connection member slidably mounted thereon, wherein in the state where the most driving wire is wound round said pulley, a relative position between said pulley and said guide member is determined such that the extending direction of said driving wire is substantially in parallel with the guide surface of said guide member.