Thk Co., Ltd.

Seiko Epson Corporation

Noriaki Chikamoto

Hiroshi Niwa

Tadashi Nakano

Akimasa Yoshida

Soshi Miyahara

Akira Nemura

Hiroyuki Furui

Yasuhiro Kubota

Keisuke Nakakubo

Junichi Washida

Tetsuya Fukumoto

Provided is a damping member which can be easily mounted to a rolling guide device already in use, can avoid an increase in size of the rolling guide device, and can easily enhance a damping force in an axial direction exerted by the rolling guide device. The damping member is applied to the rolling guide device in which a moving block is assembled to a track rail through intermediation of a plurality of rolling elements, is provided to the track rail in series with the moving block, and includes: a friction member which includes a sliding contact pad in contact with at least the track rail; and a fixing holder, which includes a holding portion configured to cover the friction member so as to press the sliding contact pad against the track rail, and is configured to couple the friction member to the moving block.

Damping member for rolling guide device and seismic isolation structure utilizing same

Provided is a lens alignment adjustment device capable of suitably correcting an angle accuracy of an optical axis of a lens unit with respect to a projector main body. A lens alignment adjustment device is provided to a projector to retain a projection lens, and is capable of adjusting inclination of an optical axis of the projection lens with respect to the projector. The lens alignment adjustment device includes: a base plate which is retained in a predetermined posture with respect to the projector; and a lens fixing plate to which the projection lens is fixed. The lens fixing plate is rockably coupled to the base plate through intermediation of a first center pin orthogonal to an optical axis of the projection lens. First adjusting means for setting an inclination angle of the lens fixing plate with respect to the base plate about the first center pin is provided.

Lens alignment adjustment device and projector equipped with the same

Provided is a screw device capable of preventing occurrence of any elevation change at a joint between a ball return path of a circulation member and a loaded ball rolling groove of a nut. The circulation memberhas end partsandeach of which the periphery includes a rolling groove connecting partpositioned to the side of a loaded ball rolling grooveof a nutand connected to the loaded ball rolling grooveof the nutand a scooping partpositioned to the side of a ball rolling groove of a screw shaftand scoops up ballsfrom a loaded ball rolling path. The rolling groove connecting partof each of the end partsandis made of resin and formed integral with the nut

Screw device and method of manufacturing the same

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Tokyo, Japan

Noriaki Chikamoto