Thk Co., Ltd.

Ayako Miyajima

Takuya Horie

Mitsumasa Wada

Takeshi Shimamura

Ryuji Furusawa

Teruaki Ooka

Marie Horikawa

Hiroyuki Kimura

Kaoru Hoshide

Shinya Saito

Akimasa Yoshida

Yoshiyuki Honjo

Toshiro Tojo

Shinji Aoki

Yuki Hayashi

Toshiyuki Aso

Akihiro Unno

Manabu Sato

Akihiro Teramachi

Tomoyuki Aida

Kazuhiro Tani

Keisuke Nagaike

Provided is a diagnosis method of appropriately recognizing a state of a rolling surface of a track member of a rolling guide device or a lubrication state of rolling elements using a sensor mounted to the rolling guide device. The diagnosis method is applied to a rolling guide device including: a track member having a rolling surface extending along a longitudinal direction of the track member; and a moving member, which is assembled to the track member through intermediation of a plurality of rolling elements configured to roll on the rolling surface so that the moving member is movable along the track member, and has an endless circulation path for the rolling elements. The diagnosis method includes: detecting a moving speed of the moving member relative to the track member while detecting relative vibration displacement of the moving member relative to the track member using a vibration sensor mounted to the moving member; and diagnosing a running state of the moving member relative to the track member based on those detection results.

Method for diagnosing state of rolling guide device

Provided is a rolling guide device which is capable of directly recognizing an operation condition of a moving member with respect to a track member or a circulation state of rolling elements in an endless circulation path, the rolling guide device including: a track member having a rolling surface; and a moving member, which is assembled to the track member through intermediation of a large number of rolling elements which roll on the rolling surface, and has an endless circulation path for the rolling elements, the moving member including: a main body member having a load rolling surface and a no-load return path for the rolling elements, the load rolling surface being opposed to the rolling surface of the track member to define a load path for the rolling elements, a pair of covers, which have direction change paths for allowing the rolling elements to move between the load path and the no-load return path, and is mounted to the main body member; and a measurement plate, which is interposed at least between the main body member and one cover to form part of the endless circulation path, and has a mounting portion for a sensor configured to detect an operation condition of the moving member with respect to the track member.

Rolling guide device

A motion guide apparatus cooling nozzle is provided which can gas-cool a motion guide apparatus. Cooling nozzlesandof the present invention are mounted on a blockof the motion guide apparatus to cool at least one of a guide railand a blockthat is assembled to the guide railvia a rolling elementin such a manner as to be movable relatively. The cooling nozzlesa andinclude an inner passageinto which gas is introduced, an openingconfigured to emit a gas flow introduced into the inner passage, a deflection surfacethat is provided adjacently to the openingto bend the gas flow emitted from the opening, and a guiding surfaceconfigured to attract gas outside the cooling nozzlesand

Motion guide apparatus cooling nozzles, motion guide apparatus with cooling nozzles, and motion guide apparatus cooling system

A motion device () includes a track rail (), a moving body (), a plurality of rolling elements () rolling in an endless circulation passage formed at the track rail () and the moving body (), a pair of lid bodies () attached to end surfaces of the moving body () in a movement direction thereof, and a connector cover body () disposed along a rolling element rolling surface () formed at the moving body () to cover a rolling element connector () connecting and holding the rolling elements (). The connector cover body () has a frame-shaped cover member () which is fixed to the pair of the lid bodies () to be integrally disposed at both ends of the rolling element rolling surface () in a width direction thereof.

Motion device

A rolling guide device is capable of facilitating smooth circulation of rolling elements in an endless circulation path, and enhancing the accuracy of motion of a moving member relative to a track member. The moving member includes: a main body member having load rolling surfaces and return paths for the rolling elements; direction change pipes incorporating inner direction change paths and having inner peripheral guide surfaces of outer direction change paths, respectively; and lid members each being mounted on the main body member and having outer peripheral guide surfaces of the outer direction change paths. The main body member has position reference holes formed therein so as to serve as position references for the direction change pipes, respectively, whereas the direction change pipes have positioning protrusions formed thereon so as to be press-fitted into the position reference holes, respectively. Further, the direction change pipes include rotation restriction protruding portions.

A rolling guide device is capable of preventing a scooping piece formed on a circulation path module from being deformed along with use over time, and enhancing the durability of the scooping piece, thereby achieving smooth motion of a moving member relative to a track member. A moving member includes: a main body member having load rolling surfaces and return paths for rolling elements; direction change pipes having formed therein inner direction change paths and having inner peripheral guide surfaces of outer direction change paths, respectively; and lid members each being mounted on the main body member and having outer peripheral guide surfaces of the outer direction change paths. Each of the direction change pipes includes: a first half circulation segment and a second half circulation segment; and a scooping portion for guiding the rolling elements into each of the inner direction change paths.

Rolling guidance device

A rotary moto actuator with a base, a table, a statorand a rotorof a rotary motorand a first memberand a second memberof a guide mechanismthat have a plurality of base segments, a plurality of table segments, a plurality of stator segments, a plurality of rotor segments, a plurality of first member segmentsand a plurality of second member segments, respectively, which all arranged circumferentially around a center line C. The stator segmentsare connected to the base segments, to which the first member segmentsare connected. The rotor segmentsare connected to the table segments, to which the second member segmentsare connected.

Rotary motor actuator and horizontal axis wind turbine

A motion device includes a track rail, a moving body, rolling elements, fixing members each fixed to an end surface of the moving body, and rolling element circulation members arranged between the moving body and the fixing members. The rolling element circulation members each have a connection section connected to the moving body so as to be rotatable about a Y direction, and a pair of first outside surfaces. The fixing members each have accommodation sections to accommodate the rolling element circulation members, and a pair of first inside surfaces closely contact with the pair of first outside surfaces. The respective rolling element circulation members and the accommodation sections are provided at both sides of the track rail interposed there between.

Growing community of inventors

Tokyo, Japan

Ayako Miyajima