PROBLEM TO BE SOLVED: To provide a tube connecting mechanism for an endoscope which is short in an axial direction.SOLUTION: The connecting mechanism 61 connects an air-feeding tube 51 and a water-feeding tube 53 to an air-/water-feeding tube 55. One end surface 67f at one end of a connecting member 67 sandwiches flange portions 51b, 53b of the air-feeding tube 51 and the water-feeding tube 53, respectively, between the air-feeding tube 51 and a first holding member 63 having openings 63a, 63b allowing the water-feeding tube 53 to be inserted through the inner circumference. The other end surface 67g of the other end of the connecting member 67 sandwiches a flange portion 55b of the water-/air-feeding tube 55 between the air-feeding tube 51 and a second holding member 65 having an opening 65a allowing the air-/water-feeding tube 55 to be inserted through the inner circumference.COPYRIGHT: (C)2013,JPO&INPIT【課題】 軸方向に短い内視鏡のチューブ接続機構を提供すること。【解決手段】 接続機構61は、送気チューブ51と送水チューブ53とを、送気・送水チューブ55に接続する。接続部材67の一端部における一端面67fは、送気チューブ51と送水チューブ53が内周に挿通される開口部63a,63bを有する第1の保持部材63との間で、送気チューブ51と送水チューブ53とのフランジ部51b,53bを挟持する。接続部材67の他端部における他端面67gは、送気・送水チューブ55が内周に挿通される開口部65aを有する第2の保持部材65との間で、送気・送水チューブ55のフランジ部55bを挟持する。【選択図】 図3E
