RACK AND OPTICAL APPARATUS HAVING THE SAME

A rack includes a first member including a main tooth, a second member including an opposite tooth disposed opposite the main tooth, the second member being rotatable with respect to the first member, a first forcing unit configured to force the main tooth, and a second forcing unit configured to fo...

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Bibliographische Detailangaben
1. Verfasser:	OIKAWA KEIKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A rack includes a first member including a main tooth, a second member including an opposite tooth disposed opposite the main tooth, the second member being rotatable with respect to the first member, a first forcing unit configured to force the main tooth, and a second forcing unit configured to force the main tooth and the opposite tooth closer to each other. On a plane perpendicular to a central axis of a lead screw, each of a part at which the first forcing unit forces the first member, a part at which the second forcing unit forces the first member, and a part at which the second forcing unit forces the second member is disposed on a movable member side with respect to a straight line connecting a rotating axis of the second member and the central axis.