JPS63166201U

JPS63166201U -

Info

Publication number: JPS63166201U
Application number: JP5839287U
Authority: JP
Priority date: 1987-04-17
Filing date: 1987-04-17
Publication date: 1988-10-28
Also published as: JPH0354721Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の要部を示す分解斜視図、第
２図は先端カムに小球が係合した状態をしめす正
面簡略図、第３図は第２図の状態における平断面
図、第４図は第３図の状態から時計方向へ解除手
段を回動させた状態の平断面図、第５図は解除手
段を押し下げて小球を次段カムのカム面に係合さ
せた状態の正面簡略図、第６図は第５図における
平断面図、第７図は従来例を示す縦断面図、第８
図は第７図に示す従来例を押し下げた状態の断面
図、第９図は従来装置におけるロツク手段と解除
手段の要部を示す分解斜視図、第１０図は次段カ
ムに小球が係合した状態の正面簡略図、第１１図
は先端カムに小球が係合した状態の正面簡略図、
第１２図は従来のロツク状態を示す平断面図、第
１３図は第１２図のロツク状態から時計方向に解
除手段を回動させたときの平断面図、第１４図は
従来のロツク解除状態の平断面図である。１…手元操作部本体、２…回転操作体、５…可
動部材、６…摩擦受け部材、６Ｂ…内周面、８，
９…小球、１０…バネ、３０…解除手段、３２…
カム部、３２Ａ…先端カム、３２Ａ′…カム面、
３２Ｂ…次段カム、３２Ｂ′…カム面。 Fig. 1 is an exploded perspective view showing the main parts of this invention, Fig. 2 is a simplified front view showing the state in which the small ball is engaged with the tip cam, Fig. 3 is a plan sectional view in the state shown in Fig. 2, Figure 4 is a plan cross-sectional view of the state in which the release means is rotated clockwise from the state shown in Figure 3, and Figure 5 is a state in which the release means is pushed down to engage the small ball with the cam surface of the next stage cam. A simplified front view, FIG. 6 is a plan sectional view of FIG. 5, FIG. 7 is a vertical sectional view showing the conventional example, and FIG.
The figure is a sectional view of the conventional device shown in FIG. 7 in a depressed state, FIG. 9 is an exploded perspective view showing the main parts of the locking means and release means in the conventional device, and FIG. 10 is a small ball engaged with the next stage cam. Fig. 11 is a simplified front view of the state in which the small ball is engaged with the tip cam;
Fig. 12 is a plan sectional view showing the conventional locked state, Fig. 13 is a plan sectional view when the release means is rotated clockwise from the locked state shown in Fig. 12, and Fig. 14 is the conventional unlocked state. FIG. DESCRIPTION OF SYMBOLS 1... Hand operation part main body, 2... Rotating operation body, 5... Movable member, 6... Friction receiving member, 6B... Inner peripheral surface, 8,
9...Small ball, 10...Spring, 30...Release means, 32...
Cam part, 32A... tip cam, 32A'... cam surface,
32B...Next stage cam, 32B'...Cam surface.

Claims

[Claims for Utility Model Registration] Regarding a rotary operating body that is provided on the main body of the hand-held operating unit and is rotated to curve the tip of the insertion tube, a polygonal movable member that rotates together with the rotary operating body, and a movable member of this movable member. an immovable friction receiving member that surrounds the outer circumferential surface with the inner circumferential surface and forms a substantially half-moon-shaped gap on each side of the movable member; a locking means consisting of a pair of small balls biased by a spring, and a locking means that has a first position and a second position in the direction of the axis of rotation, and rotates the movable member at the first position with a time difference with respect to the rotary operating body. A release means having a cam portion consisting of a tip cam that engages the small balls of the cam to release the lock in the direction of rotational operation, and a next-stage cam that engages both of the small balls at the second position and completely releases the lock. In the bending operation device for an endoscope, the cam surface of the cam portion is inwardly tapered, and when the cam surface engages the small ball, the small ball is removed from the inner circumferential surface of the friction receiving member. A bending operation device for an endoscope, characterized in that the ends are spaced apart from each other.