Victor Company of Japan, Limited

Noboru Uchida

Masahiro Yamamoto

Shigeru Yokota

Satoshi Yonemitsu

Hideki Samata

A linear motion device includes a guide shaft. A to-be-moved member is supported on the guide shaft, and is linearly movable along the guide shaft. A lead screw extends parallel to the guide shaft. A clamper meshes with the lead screw. The clamper moves as the lead screw rotates. An intermediate member is provided between the to-be-moved member and the clamper. An urging member operates for urging the to-be-moved member toward the clamper and enabling the intermediate member to be seated between the to-be-moved member and the clamper in a manner such that an axis of the intermediate member is nonparallel to the guide shaft.

Linear motion device and lens drive device

A lens barrier deviceincludes a pair of lens barrier membershaving a pair of toggle-lever engagement bosses, a ringhaving a pair of recessesformed on its outer circumferential part, a pair of toggle levershaving a pair of triangular cam partand a base framesupporting the toggle levers, and a pair of torsion springsengaged with the toggle leversand the base frame. In assembling, the toggle-lever engagement bossesare freely fitted into the recesses, respectively. With forward-reverse rotating of the ring, by allowing the toggle-lever engagement bossesto slide along the triangular cam partwhile pressing the bossesthrough respective ends of the recesses, the pair of lens barrier membersare held in their closed or opened condition by the toggle leversand the torsion springs

Growing community of inventors

Kanagawa-ken, Japan

Noboru Uchida