< Topic >The projection tonnage of the basic destal of the forceps component is suppressed, the forceps which at the same time can restrict the open angle of the forceps component below specified angle is offered.SolutionsAs for the forceps, forceps component 7 of the pair which opens and closes around support pin 8 and, each one end time motion is concatenated by the basic destal of the respective each forceps component 7 unrestrictedly with concatenated pin 16, each other end has with 2 these link components 15 which time motion unrestrictedly are concatenated with common pin to the Tip of operating rod 6 17. support pin distance D1 with 8 and concatenated pin 16 common pin is below distance D2 with 17 and concatenated pin 16, as for operating rod 6, the extending which the part where it can provide common pin 17 compared to extends to Tip direction it possesses section 18 Out, extending appear length of section 18 is configurated, in order for largest open angle of forceps component 7 to become specified angle.< Choice figure >Drawing 3【課題】鉗子部材の基端部の張り出し量を抑制し、かつ鉗子部材の開き角度を所定角度以下に制限できる鉗子を提供する。【解決手段】鉗子は、枢支ピン8の周りで開閉する一対の鉗子部材7と、各一端がそれぞれ各鉗子部材7の基端部に連結ピン16で回動自在に連結され、各他端が操作ロッド6の先端部に共通ピン17で回動自在に連結された2本のリンク部材15とを備える。枢支ピン8と連結ピン16との間の距離D1は、共通ピン17と連結ピン16との間の距離D2以下であり、操作ロッド6は、共通ピン17が設けられた部分よりも先端方向に延びた延出部18を有し、延出部18の長さは、鉗子部材7の最大開き角度αが所定角度となるように設定される。【選択図】図3
