JPS6432961U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第８図は本考案に係る歩進機構の
一実施例を示し、第１図は組立断面図、第２図は
外面図、第３図は第１図における矢視線Ａ―Ａ方
向の断面図、第４図は第１図における矢視線Ｂ―
Ｂ方向の断面図、第５図は歩進機構回りの分解斜
視図、第６図は歩進機構の初期状態を示す作動説
明図、第７図は歩進機構の下降時の係合状態を示
す作動説明図、第８図は歩進機構の復帰状態を示
す作動説明図である。 ６……可動子、６ｆ，６ｇ……第１、第２爪部
、９……回転体、９ａ……歯車、９ｂ……可動盤
。 1 to 8 show an embodiment of the stepping mechanism according to the present invention, in which FIG. 1 is an assembled sectional view, FIG. 2 is an external view, and FIG. 3 is an arrow line AA in FIG. 1. A cross-sectional view in the direction, Figure 4 is along the arrow line B in Figure 1.
5 is an exploded perspective view of the stepping mechanism and its surroundings; FIG. 6 is an operation explanatory diagram showing the initial state of the stepping mechanism; and FIG. 7 is an engaged state when the stepping mechanism is lowered. FIG. 8 is an explanatory diagram of the operation showing the returning state of the stepping mechanism. 6... Movable element, 6f, 6g... First and second claw portions, 9... Rotating body, 9a... Gear, 9b... Movable plate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転自在に軸支された歯車と、該歯車の歯面に
対し接離移動し、かつ可動子の該歯車への接近移
動に応動し、該歯車を押圧して歩進させる第１の
爪部と、可動子の該歯車からの離開移動に応動し
、該歯面を押圧して歩進させる第２の爪部と、前
記第１の爪部及び第２の爪部を有した可動子とを
備えたことを特徴とする歩進機構。 A rotatably supported gear, and a first pawl that moves toward and away from the tooth surface of the gear and presses the gear to move forward in response to the movement of the movable element toward the gear. a second pawl portion that responds to movement of the movable element away from the gear and presses the tooth surface to advance; a movable element having the first pawl portion and the second pawl portion; A stepping mechanism characterized by being equipped with.