PROBLEM TO BE SOLVED: To improve washability of an inner peripheral surface of a casing by providing a washing adapter for an endoscope, securely fixed merely by fitting operation with one part held, with low-cost structure and connected waterproof against the casing.SOLUTION: The washing adapter 10 for an endoscope includes a body 90, fluid supply tubes 110 and 120, an engaging member 130, a restricting member 140, and first and second coil springs 151 and 152. Sealing members 114 and 124 are mounted on lower end parts of fluid supply tubes 110 and 120 outer peripheral surfaces. The body 90 accommodates inside, flanges 44 and 54 of valve casings 41 and 51. The bottom surfaces of the sealing members 114 and 124 closely contact top surfaces of the flanges 44 and 54. The engaging member 130 engages the bottom surfaces of the flanges 44 and 54. The restricting member 140 restricts the engaging member 130 in an engaging position. When the restricting member 140 is moved from the restricting position to an upper or lower releasing position, the restricting member returns to its original position with impetus of the coil springs 151 and 152.COPYRIGHT: (C)2012,JPO&INPIT【課題】1箇所を把持して装着動作するだけで、確実に固定可能とし、また、ローコストな構成でケーシングに対して水密に接続し、ケーシング内周面の洗浄性を向上させる。【解決手段】内視鏡用洗浄アダプタ10は、本体部90と、流体供給管110,120と、係合部材130と、規制部材140と、第1及び第2コイルバネ151,152とからなる。流体供給管110,120の外周面下端部には、シール部材114,124が設けられている。本体部90は、弁ケーシング41,51のフランジ部44,54を内部に収納し、シール部材114の底面は、フランジ部44,54の上面に密着する。係合部材130は、フランジ部44,54の底面に係合する。規制部材140は、係合部材130を係合位置に規制する。規制部材140を規制位置から上下の規制解除位置に移動させるとコイルバネ151,152の付勢により規制位置に復帰する。【選択図】図4
