Abstract: A manufacturing jig for a stator, the stator including a substantially annular stator core and electrical conductors. The stator core is formed by stacking, in layers, a plurality of thin plates where a plurality of fastening holes are formed in a vicinity of a circumferential edge portion so that the fastening holes are aligned in the stacking direction. The electrical conductors are partially inserted into a plurality of slots formed in the stator core. The manufacturing jig is attached to the stator core when a powder resin is applied to the electrical conductors and includes hole portions. The hole portions are arranged being divided in a circumferential by being divided in a circumferential direction of the stator core, cover the fastening holes and a vicinity thereof from above, and are formed so as to be able to be fastened to the fastening holes of the stator core.

Abstract: The method of manufacturing a stator includes: providing a substantially annular stator core, which is formed by stacking a plurality of thin plates where a plurality of fastening holes are formed in the vicinity of a circumferential edge portion such that the fastening holes are aligned in the stacking direction; and providing electrical conductors, which are partially inserted into a plurality of slots formed in the stator core, an attachment step of attaching, to the stator core, holding members that cover the fastening holes and the vicinity thereof from above and which hold the stator core to an inner side in the stacking direction; a heating step of heating the stator core by induction heating; a coating step of coating the heated electrical conductors with a resin; and a step of removing the holding members from the stator core after the coating step.

Abstract: A slider configured to reduce the wear of rotating bodies and an arc-shaped rail. The slider 32 includes: an insertion portion 321 inserted into the arc-shaped rail 31 through the slit 314; a first rotating body 342 which rolls on the outer peripheral wall 312, and a second rotating body 341 which rolls on the inner peripheral wall 311, wherein the second rotating body 341 includes a pair of lateral rotating bodies 411 disposed in both ends in the width direction and a central rotating body 412 disposed in the central portion in the width direction so as to be displaced in the sliding direction from the lateral rotating bodies 411 and wherein the lateral rotating bodies 411 and the central rotating body 412 are pivotally supported by a pivot member 51 provided so as to be swingable in the sliding direction in an insertion portion 321.

Abstract: Provided is a bipedal walking robot which includes a linear actuator, which connects a crus link and a foot of each leg away from an ankle joint, for driving the foot to rock around the ankle joint with respect to the crus link according to a telescopic motion thereof. The robot is capable of applying a desired moment to the foot for walking on stairs without increasing the linear actuator in size. The linear actuator is disposed in such a way that a telescopic force therefrom acts on a line inclined backward with respect to a connection line connecting a knee joint and the ankle joint. Preferably, a connection portion, which is connected to the crus link, of the linear actuator is disposed backward than from the connection line, and a connection portion, which is connected to the foot, of the linear actuator is disposed forward from the connection line.

Abstract: A manufacturing method for appropriately manufacturing an arc-shaped rail that is C-shaped in cross section includes: a first process of forming one side wall 313 and one of circumferential wall portions 312 by bending a ring R of a thin metal plate by spinning, the circumferential wall portions 312 being portions on both sides of a width direction of the inner circumferential wall or the outer circumferential wall divided by a slit 314; a second process of forming the other side wall 313 and the other circumferential wall portion 312 by spinning using a plurality of cores 41 to 43 so as to envelop the cores 41 to 43, the cores 41 to 43 being obtained by dividing a core in a width direction to not more than a width of the slit 314; and a third process of separately extracting the cores 41 to 43 from the slit 314.

Abstract: A slider configured to reduce the wear of rotating bodies and an arc-shaped rail. The slider 32 includes: an insertion portion 321 inserted into the arc-shaped rail 31 through the slit 314; a first rotating body 342 which rolls on the outer peripheral wall 312, and a second rotating body 341 which rolls on the inner peripheral wall 311, wherein the second rotating body 341 includes a pair of lateral rotating bodies 411 disposed in both ends in the width direction and a central rotating body 412 disposed in the central portion in the width direction so as to be displaced in the sliding direction from the lateral rotating bodies 411 and wherein the lateral rotating bodies 411 and the central rotating body 412 are pivotally supported by a pivot member 51 provided so as to be swingable in the sliding direction in an insertion portion 321.

Abstract: Provided is a bipedal walking robot which includes a linear actuator, which connects a crus link and a foot of each leg away from an ankle joint, for driving the foot to rock around the ankle joint with respect to the crus link according to a telescopic motion thereof. The robot is capable of applying a desired moment to the foot for walking on stairs without increasing the linear actuator in size. The linear actuator is disposed in such a way that a telescopic force therefrom acts on a line inclined backward with respect to a connection line connecting a knee joint and the ankle joint. Preferably, a connection portion, which is connected to the crus link, of the linear actuator is disposed backward from the connection line, and a connection portion, which is connected to the foot, of the linear actuator is disposed forward from the connection line.

Abstract: An apparatus for simulating a ride on a vehicle has a base, and a simulated vehicle body which is supported on the base with a freedom of two-axis rotation about a rolling axis and a pitching axis. A pair of linear actuators are disposed in a position offset to one side in an axial direction of one of the rolling axis and the pitching axis, e.g., offset to one axial side of the rolling axis relative to the pitching axis. The actuators are disposed symmetrically relative to a plane which crosses the pitching axis at a right angle and which includes an axial line of the rolling axis. A fixing member and a movable member of each of the actuators are coupled to the base and the simulated vehicle body, respectively, through universal joints.

Abstract: Disclosed is a strength-enhancing apparatus for a metal part comprising a recovery mechanism for sucking powder flow dust generated from glass beads crushed on a surface of a gear in a chamber to recover it together with drainage, wherein the recovery mechanism includes a liquid-spouting means arranged on a ceiling in the chamber, for effecting showering for the whole interior of the chamber. Accordingly, it is possible to reliably recover the mist containing the powder flow dust floating in the chamber, and it is possible to reliably avoid adhesion and accumulation of the powder flow dust.

Abstract: A set oil ring to be assembled into a piston ring groove is made up of a spacer ring and a pair of side rail rings to be placed on both sides thereof. In assembling one of the side rail rings into a first groove portion which is on an upper side of the spacer ring in the piston ring groove, a guide member, which can be moved up and down for fitting the rings onto a piston, is moved to a first fitting position which is substantially the same level as the groove wall surface of the first groove portion. A restricting member is disposed oppositely in front of the guide member while leaving a clearance facing the first groove portion. One of the side rail rings is pushed out of the front end of the guide member in a condition in which split end portions of the spacer ring are restricted by the restricting member so as not to overlap.

Abstract: A multispindle-head machine tool has a column, a plurality of multispindle heads each having a plurality of tools and an engaging member and an annular feed passageway supporting the multispindle heads for circulatory movement therealong. The annular feed passageway includes a pair of upper and lower fixed guide members supported on the column, and a movable guide member movable back and forth horizontally for interconnecting ends of the upper and lower fixed guide members near a machining position. A rotary actuator is provided together with a feed mechanism disposed around the annular feed passageway and movable to circulate along the annular feed passageway by the rotary actuator for moving the multispindle heads along the annular feed passageway. An actuator unit is mounted on the column in association with the movable guide member for positioning one of the multispindle heads which is held on the movable guide member in the machining position, and rotating the tools of one of the multispindle heads.

Abstract: A pallet with a workpiece mounted thereon is delivered on a pallet carriage, and transferred onto the table of a machine tool which has a different height from the pallet carriage. Lifting mechanisms on the pallet carriage are engaged by respective positioning members in front of the machine tool. The lifting mechanisms are actuated to lift the pallet carriage to position the pallet carriage for transfer of the pallet onto the machine tool table. The pallet is transferred from the pallet carriage onto the machine tool table, half of a predetermined stroke by a first transfer mechanism on the pallet carriage and the remaining half of the stroke by a second transfer mechanism on the machine tool table. The table has vertically movable support rollers for supporting the pallet when it is transferred onto and from the table. When the pallet P is positioned on the table, the vertically movable support rollers are retracted downwardly.

Abstract: A process for measuring an unbalance of a torque converter, in which an outer member and an inner member of the torque converter are assembled, and oil is filled into the outer member to establish a condition similar to an actual service state of the torque converter. In this condition, the two members are rotated in unison. If the rotational speed of the torque converter reaches a measuring rotational speed, a plurality of measurements are conducted with the phase of the outer and inner members being varied between each measurement through a predetermined angle, thereby correctly detecting only an unbalance due to the outer member, with an unbalance due to the inner member being canceled from the results of the measurements. Cutting a balance weight having a weight sufficient to correct the detected unbalance from a metal tape and attached said cut balance weight to an outer periphery of the outer member of the torque converter at a given position by spot-welding or adhesive-bonding.

Abstract: An inner member of a constant-velocity joint is continuously tilted with respect to an outer member thereof up to a maximum tilt angle while the inner member is rotating. From data including tilt angles and torques which are measured when the inner member is tilted, and also from maximum and minimum torque values at the maximum tilt angle which are detected from the measured data, there is calculated a pair of curves indicative of the maximum and minimum torque values of the inner member at the respective tilt angles. Maximum and minimum torque values at a given tilt angle of the inner member are then calculated from the calculated curves, and then compared with the predetermined reference values, thereby determining whether the constant-velocity joint is good or not.

Abstract: An apparatus for machining a bevel gear has an apparatus frame, a spindle head provided on the apparatus frame for rotatably supporting a spindle on which a machining tool is mounted, and an indexing unit provided for holding a workpiece such that the workpiece is indexed by one pitch of teeth to be formed thereon to perform machining of tooth spaces with the machining tool. The spindle is horizontally and rotatably held on a spindle head such that the spindle is immovable in the axial direction of the spindle. The spindle head is movable back and forth in the axial direction and is movable in a lateral direction at right angles to the axial line. A column is provided on the apparatus frame in front of the spindle head such that the column is turnable about a vertical axial line at an arbitrary angle. The indexing unit is provided in a plurality of pieces on an external periphery of the column at a distance between each of the indexing units.

Abstract: Disclosed is a strength-enhancing apparatus for a metal part comprising a recovery mechanism for sucking powder flow dust generated from glass beads crushed on a surface of a gear in a chamber to recover it together with drainage, wherein the recovery mechanism includes a liquid-spouting means arranged on a ceiling in the chamber, for effecting showering for the whole interior of the chamber. Accordingly, it is possible to reliably recover the mist containing the powder flow dust floating in the chamber, and it is possible to reliably avoid adhesion and accumulation of the powder flow dust.