DRIVE UNIT

To provide a drive unit that can reliably prevent a cable from coming out even when one side of a drum in the axial direction has a different diameter from the other side of the drum.SOLUTION: A large diameter section 74 is provided on one side of a close side drum 70 in the axial direction. A small...

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Bibliographic Details
Main Authors GOTO JOJI, SHINGU KEIJI, URANO YOSHITAKA, KAGAWA KENICHIRO, FUKABORI TAKASHI
Format Patent
LanguageEnglish
Japanese
Published 30.04.2020
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Summary:To provide a drive unit that can reliably prevent a cable from coming out even when one side of a drum in the axial direction has a different diameter from the other side of the drum.SOLUTION: A large diameter section 74 is provided on one side of a close side drum 70 in the axial direction. A small diameter section 73, which gradually becomes small in diameter as it goes from the large diameter section 74 toward the other side of the close side drum 70 in the axial direction, is provided on the other side of the close side drum 70. The small diameter section 73 is provided with a separator wall 73b that is disposed between small diameter cable grooves 73a adjacent in the axial direction of the close side drum 70 and prevents a close side cable from coming out of the small diameter cable grooves 73a. Thus, if a wound position of the close side cable on the close side drum 70 changes and moves from the large diameter section 74 to the small diameter section 73, it is possible to reliably prevent the close side cable from coming out of the small diameter cable grooves 73a using the separator wall 73b, which is thick and provided in the small diameter section 73.SELECTED DRAWING: Figure 7 【課題】ドラムの軸方向一側とドラムの軸方向他側とが異径であっても、ケーブルの脱落を確実に防止し得る駆動ユニットを提供する。【解決手段】閉側ドラム70の軸方向一側に大径部74が設けられ、閉側ドラム70の軸方向他側に大径部74から閉側ドラム70の軸方向他側に向かうに連れて徐々に小径となった小径部73が設けられ、小径部73には、閉側ドラム70の軸方向において隣り合う小径ケーブル溝73aの間に配置され、閉側ケーブルの小径ケーブル溝73aからの脱落を防止する隔壁73bが設けられている。これにより、閉側ケーブルの閉側ドラム70に対する巻き掛け位置が変化して、大径部74から小径部73に移行したとしても、小径部73に設けられた肉厚の隔壁73bによって、閉側ケーブルの小径ケーブル溝73aからの脱落(脱線)を確実に防止することができる。【選択図】図7
Bibliography:Application Number: JP20180201486