WIDTH ADJUSTMENT MECHANISM, WIDTH ADJUSTMENT POWER TRANSMISSION MECHANISM, WINDING DEVICE HAVING WIDTH ADJUSTMENT POWER TRANSMISSION MECHANISM, AND FEED MECHANISM HAVING WIDTH ADJUSTMENT POWER TRANSMISSION MECHANISM
To provide a width adjustment mechanism, a width adjustment power transmission mechanism, a winding mechanism having the width adjustment power transmission mechanism, and a feed mechanism having the width adjustment power transmission mechanism by simple constitutions.SOLUTION: A width adjustment mechanism of a rotating shaft comprises: a trapezoidal screw shaft 1 for converting a rotational motion and a linear motion； a gear 2 screwed at an inside diameter； a gear 3 not screwed at the inside diameter； and a cylindrically-screwed pivot 4. The gear 3 not screwed at the inside diameter comprises a connecting part 5 which separates from and joins to the pivot 4, is constituted so that the connecting part 5 separates from and joins to the pivot 4, and in order to change a width position of the trapezoidal screw shaft 1 which is regulated by a position of the gear 2, the pivot 4 can change a positional relationship between the gear 2 and itself by rotating the gear 3. Also, the pivot 4 can adjust the width position of the trapezoidal screw shaft 1 which is regulated by the position of the gear 2 by rotating the gear 2 in a state that the pivot 4 separates from the gear 3 and the gear 2, and can rotate the trapezoidal screw shaft 1 without changing the width position by rotating the gear 3 in a state that the pivot 4 tightly adheres to the gear 2.SELECTED DRAWING: Figure 1【課題】簡便な構成で横幅調整機構、横幅調整動力伝達機構、横幅調整動力伝達機構を備えた巻き取り機構及び横幅調整動力伝達機構を備えた送り機構を提供する。【解決手段】回転軸の横幅調整機構であって、回転運動と直線運動の変換のための台形ネジ軸１と、内径にネジ切りされた歯車２と、内径にネジ切りされていない歯車３と、円筒状でネジ切りされたかなめ４とを備え、内径にネジ切りされていない歯車３はかなめ４と離合する連結部５を備え、連結部５がかなめ４と離合するように構成され、歯車２の位置によって規定される台形ネジ軸１の横幅位置を変更するために、かなめ４は歯車３を回転させることにより歯車２との位置関係を変更することが出来、かなめ４及び歯車３が歯車２と離間した状態で歯車２を回転させることにより歯車２の位置によって規定される台形ネジ軸１の横幅位置を調整することが出来、かなめ４が歯車２と密着した状態で歯車３を回転させることにより横幅位置を変更することなく台形ネジ軸１を回転させることが出来るようにした。【選択図】図１
