公开(公告)号：JPH08228424A

公开(公告)日：1996-09-03

申请号：JP3379795

申请日：1995-02-22

Applicant: NAT SPACE DEV AGENCY ,  TOSHIBA CORP

Inventor： MATSUEDA TATSUO ,  KAWAMOTO OSAMU ,  KANAMORI HISAKAZU

IPC: H02G11/00

Abstract: PURPOSE: To provide cable connection which can be maintained in a highly reliable state for a long period. CONSTITUTION: Connecting cables 18 which electrically connect a fixed housing 10 to a rotatable housing 14 are laid and connected while the cables 18 are supported by flexible belt-like members 21 by stretching the members 21 across the housings 10 and 14.

公开(公告)号：JPH03212111A

公开(公告)日：1991-09-17

申请号：JP254690

申请日：1990-01-11

Applicant: NAT SPACE DEV AGENCY ,  TOSHIBA CORP

Inventor： HISADA YASUMASA ,  KAWAMOTO OSAMU

IPC: H02G11/02

Abstract: PURPOSE:To simplify a constitution and to lighten a load torque accompanying the winding and unwinding guide of a cable by constituting an apparatus in such manner that first and second cables are guided by first and second cable guides to be wound or unwound in different directions following the rotation- driving of a rotating part. CONSTITUTION:When rotary shafts 10, 11 are rotated clockwise, the cables 12a, 12b are respectively wound and unwound by cable guides 15a, 15b following the rotation of the rotary shafts. When the rotary shaft 10 is rotated counterclockwise, the cable wound by the cable guide 15a or 15b is unwound and the one unwound thereby is wound to permit the rotation of the rotary shaft 10. In this case, the cables 12a, 12b have characteristics where the relation between the angle of rotation and torque of the rotary shaft 10 is an almost opposite i.e., positive and negative relation. As a result, a load torque takes a value T1 at the angle of rotation theta.

公开(公告)号：JPH0320114A

公开(公告)日：1991-01-29

申请号：JP15360289

申请日：1989-06-16

Applicant: TOSHIBA CORP

Inventor： KAWAMOTO OSAMU

IPC: F16C19/54 ,  F16C19/00 ,  F16C19/55

Abstract: PURPOSE:To obtain a bearing with a mechanical stopper with a simple construction, little increase in weight and ensured of reliability by installing rolling bodies positioned between at least every one of three rings and a ring adjacent to it and engagement members which engage in order with rotation of the rings. CONSTITUTION:When an inner ring R rotates counter-clockwise with rotation of a rotary shaft, a claw 16 of the inner ring 12 engages with the claw 17 of an intermediate ring 13 at a position where it rotates by approximately 360 deg., so the inner ring 12 can not make any relative rotation. On the other hand, the intermediate ring 13 rotates counter-clockwise with regard to an outer ring 11, the claw 17 of the intermediate ring 13 engages with the claw 15 of the outer ring 11. The rotating angle during this period is 360 deg. and the rotary shaft can rotate up to approximately 720 deg. of rotational range in total. It is thus possible to obtain a bearing with a mechanical stopper with a simple construction, that is, only the addition of the intermediate ring 13 to an ordinary bearing, which with capability of minimizing an increase of weight, provided with a mechanical stopper whose allowable rotating angle is more than 360 deg..

公开(公告)号：JPS6488131A

公开(公告)日：1989-04-03

申请号：JP24546487

申请日：1987-09-29

Applicant: TOSHIBA CORP

Inventor： KAWAMOTO OSAMU ,  HONDA TOSHIO

IPC: G01M13/04 ,  G01L5/00

Abstract: PURPOSE:To improve handling corresponding to rolling bearings which are formed variously by holding the inner ring and outer ring of a bearing by two support members which are arranged radially and adjustable in radial directions. CONSTITUTION:A holding body which has an inner ring holding part 25 arranged radially about the center of the bearing is moved and adjusted in a radial direction to hold the inner ring of the bearing 34. Similarly, the support member 28 for the outer ring is adjusted in a radial direction to hold the outer ring by an outer ring holding part 30 and then a specific test load is placed by the weight of the support member 28. In this state, when a motor is driven, its driving force is transmitted to the inner ring and the load cell 33 of a detection part 32 detects friction torque through the outer ring. Consequently, rolling bearings of various shape size can be handled and the handling is improved.

公开(公告)号：JPH03288010A

公开(公告)日：1991-12-18

申请号：JP8915090

申请日：1990-04-05

Applicant: TOSHIBA CORP

Inventor： KAWAMOTO OSAMU

IPC: F16C35/077 ,  H01Q1/12

Abstract: PURPOSE:To enable use with high precision at various environmental temperature by putting a rolling element between inner and outer rings whose one end is engaged with a rotary shaft and the other end is engaged with a support body in play, and energizing the inner or outer ring with which rotary shaft is not engaged in specific direction. CONSTITUTION:A bearing 10 is pressed on and supported by a support body 12 when its outer ring 11b is energized by a plate spring 14. When environmental temperature changes, space 13 which exists between the outer ring 11b and support body 12 is changed due to difference of coefficient of thermal expansion of the bearing 10 and support body 12. However, the bearing 10 is pressed on and supported by inner wall of the support body 12 because the outer ring 11b is moved and energized by the plate spring 14. Even if load such as impact is applied, the plate spring 14 bends, and is not broken because it is made of metal. Thus, it is possible to realize support of rotary shaft with high precision without being affected by changes of temperature.

公开(公告)号：JPH02102920A

公开(公告)日：1990-04-16

申请号：JP25520188

申请日：1988-10-11

Applicant: TOSHIBA CORP

Inventor： KAWAMOTO OSAMU

IPC: F16C33/82 ,  F16C37/00

Abstract: PURPOSE:To improve thermal conductance so as to reduce a temperature difference between an inner ring and an outer ring by placing a permanent magnet on the side face of a shield plate, filling magnetic fluid between the shield plate and the inner ring/and the outer ring, and holding the fluid by the operation of a permanent ring. CONSTITUTION:Magnetic fluid 17 is filled in spaces between a shield plate 14 and an outer ring 12/and an inner ring 11. This magnetic fluid 17 is held by the operation of a permanent magnet 15. Accordingly, the inner ring 11 and the outer ring 14 and the shield plate 14 and brought into contact with one another with a wide area by the magnetic fluid 17. Since heat transfer paths are formed by the magnetic fluid 17, the heat transfer of the inner ring 11 and the outer ring 12 is improved in thermal conductance because of three heat transfer paths, that is, a heat transfer path through a roller 13 and two heat transfer paths (rear and front surfaces) through the magnetic fluid 17 and the shield plate 14, and the generation of difference in temperature between the inner ring 11 and the outer ring 12 is controlled.