Nhk Spring Co., Ltd.

Shinji Iino

Ryohei Shigematsu

Hideaki Takahashi

Kenichi Katsube

Masahiro Oda

Takahiro Fujii

Takafumi Hirata

Soichi Nakayama

Kiyoshi Nakajima

Yusuke Tanaka

Takuya Sato

Shimpei Kurokawa

Yuki Hotoda

Masato Shirao

Yosuke Kawai

Kenji Murakami

Souichi Nakayama

Hiroshi Yagame

Saiji Uetsuhara

A torsion bar unit includes a cylindrical shaped torsion bar including a fiber-reinforced composite material and extending in a first direction, a first holding member having a first groove for holding an end part of the torsion bar, and a second holding member having a second groove for holding the end part of the torsion bar at a position opposite the first groove and sandwiching and holding the end part of the torsion bar between the first groove and the second groove by overlapping the first holding member and the second holding member.

Torsion bar unit

The suspension device according to the present invention is provided with a leaf spring extending in a belt shape, a first arm, a second arm, and a coupling member for rotatably coupling the first arm and the second arm, wherein: a first holding part for holding one end of the leaf spring and a second holding part for holding the other end of the leaf spring are provided; and the first and second arms each support the leaf spring by at least one portion that is different from the one end or the other end of the leaf spring.

Suspension device

Provided are a bending structure and a flexible tube for a medical manipulator, which comprise a main body that is composed of the wave washers stacked in an axial direction and kept a stacked state, the main body being bendable according to the expansion and contraction in the axial direction. Accordingly, linearity of load characteristics based on load and a bending angle is made high to make it possible to obtain the flexible tube having superior load bearing and bendability while conducting size reduction.

Bending structure and flexible tube for medical manipulator

A power seat operation device is configured in such a manner that, when a dial member is rotated and operated, a movable mechanism which is to be operated is selected from among movable mechanisms. When a switch member is rotated and operated, the selected movable mechanism is actuated. The switch member is rotated and operated about a rotation axis extending in the widthwise direction of the seat. Thus the direction of operation of the switch member can be aligned with or nearly aligned with both the direction of the actual movement of a seat back when a recliner mechanism is actuated and the direction of the actual movement of an ottoman when an ottoman mechanism is actuated. Also, in a state in which a seat slide mechanism is selected, the direction of the operation of the switch member is aligned with the front-rear direction of the seat.

Power seat operation device and power seat

A multi-shaft drive device is provided that is capable of obtaining an appropriate backlash in an enmeshed state of an output side bevel gear and an input side bevel gear. An output side bevel gear () that is biased in the direction of an input side bevel gear by a coil spring contacts a shaft support bush attached to a wall portion () in an enmeshed state with the input side bevel gear. A bias direction stroke end of the output side bevel gear () is accordingly restricted. Moreover, the wall portion () is provided to a gear holder () fixed to a device case () that supports the input side bevel gear, thereby enabling the axial direction position of the output side bevel gear () to always be positioned at a uniform position to enmesh appropriately with the input side bevel gear.

Multi-shaft drive device

The present invention obtains a multi-shaft drive device that can protect a rack and pinion from operative load input to a selector. The multi-shaft drive device is provided with: an input-side bevel gear () to which motor power is transmitted; and an output-side bevel gear () that transmits the power transmitted from the input-side bevel gear () to a movable mechanism. The multi-shaft drive device is further provided with: a selector () that connects/disconnects the meshing of the output-side bevel gear () and the input-side bevel gear (); and a rotating shaft () that causes the selector () to slide via a rack () and pinion (). Furthermore, the angle of rotation of the rotating shaft () is regulated by the end of the pinion () contacting a vertical wall (A) of a case ().

A power transmission member that transmits rotation of an output shaft to a movable mechanism achieves a simpler structure and increased productivity compared to when a conventional flexible cable is employed. Out of plural output portionsof a clutch unitpower transmission members that transmit rotation of an output shaftto a movable mechanism are configured by a conventional torque cable in a second output portionB and a third output portionC. However in a first output portionA, the power transmission member is configured by a gearboxincluding a wormthat is coaxially and integrally formed with an output shaftA.

Output gears are disposed so as to be movable toward and counter to plural second input gears to which rotation of the motor is transmitted, and so as to be biased toward the plural second input gears. A cam, which has plural recesses provided at the periphery thereof, is disposed at the inside of the output gear. The cam is rotated, and a pin of the output gear enters the recess, so that the output gear is moved toward the second input gear, and the output gear is engaged with the second input gear.

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Yokohama, Japan

Shinji Iino