SUMMARY OF THE INVENTION An object of the present invention is to provide an endoscope holding device that narrows the displacement area of a counterweight and secures smooth operation, and therefore the endoscope holding device of the present invention comprises a base portion 10, a support 9 , A first link 11 pivoting at the first connecting portion 51 of the support pillar, a second link 12 pivoting at the first connecting portion, a third link 13 pivoting at the second connecting portion 52, a first link , A fourth link 14 that maintains the third link in parallel and is maintained parallel to the second link and can hold the endoscope, a fifth link 14 connected to the first link and provided with a first counterweight 41 and vertically suspended vertically 15, a second counterweight 42 vertically suspended connected to the second connecting portion, a second counterweight 42 pivotally rotated by the third connecting portion 53, one arm connected to the fifth link by a fourth connecting portion, one arm connected to the first link A sixth link 16 which is maintained parallel to the first protrusion And a seventh link 17 which is rotated by the fifth connecting portion 55 of the second protruding portion 16 n and rotates at the sixth connecting portion 56 of the second protruding portion 16 n, and the first, fifth, sixth and third connecting portions Are disposed at positions where they form a parallelogram.本発明は、カウンターウエイトの変位領域を狭小化し円滑動作を確保する内視鏡保持装置を提供することを目的とし、そのために、本発明の内視鏡保持装置は、ベース部10と、支柱9と、支柱の第1連結部51で回動する第1リンク11と、第1連結部で回動する第2リンク12と、第2連結部52で回動する第3リンク13と、第1,第3リンクを平行に維持し第2リンクと平行に維持され内視鏡を保持可能な第4リンク14と、第1リンクに連結され第1カウンターウエイト41を備え鉛直垂下される第5リンク15と、第2連結部に連結され鉛直垂下される第2カウンターウエイト42と、第3連結部53で回動し一腕が第5リンクに第4連結部で連結され一腕は第1リンクと平行に維持される第6リンク16と、1端が第1突出部11dの第5連結部55で回動し2端が第2突出部16nの第6連結部56で回動する第7リンク17とを備え、第1,第5,第6,第3連結部が平行四辺形を形成する位置に配設される。
