Toyota Jidosha Kabushiki Kaisha

Aisin Takaoka Co., Ltd.

Hirofumi Inoshita

Akinori Tomioka

Toshiaki Masui

Satoshi Kojima

Tatsuo Iida

Daisuke Mizushima

Akira Sato

Tomoyuki Isogai

Hironori Aoyama

Koji Shimoda

Hironari Adachi

Takuya Sukeda

Koichi Mine

Takuya Kajita

Hideki Yoshikane

The spiral advancing and retreating operation device forms a tubular telescopic body by spirally wrapping a first belt member and a second belt member disposed inside the first belt member around a common axis line in an overlapping manner in a state in which the first belt member and the second belt member are displaced from each other in a direction of the axis line, in which the first belt member includes a first row of engagement protrusions and a second row of engagement protrusions, the second belt member includes a first row of engagement parts and a second row of engagement parts.

Spiral advancing and retreating operation device, belt member for tubular telescopic body, and method for manufacturing belt member for tubular telescopic body

The spiral advancing and retreating operation device forms a tubular telescopic body by spirally wrapping a first belt member and a second belt member around a common axis line in an overlapping manner in a state in which the first belt member and the second belt member are displaced from each other in a direction of the axis line, in which the first belt member includes a first row of engagement protrusions and a second row of engagement protrusions formed of a plurality of engagement protrusions, the second belt member includes a first row of engagement parts and a second row of engagement parts formed of a plurality of engagement parts.

Spiral advancing and retreating operation device and belt member for tubular telescopic body

The extension-retraction device according to the present disclosure is an extension-retraction device in which a first belt and a second belt wound around the outside of the first belt are spirally wound around a tubular structure. The second belt includes an engaging pin having a fitting portion that fits into a hole of the first belt and an insertion portion that protrudes from the fitting portion and is inserted into the hole of the first belt. The fitting portion has a cylindrical shape having a diameter corresponding to the hole of the first belt, and the side surface of the insertion portion is inclined so that the diameter of the insertion portion decreases toward the tip portion.

Extension-retraction device

An assembly conductor manufacturing method includes aligning, around a center strand, a plurality of peripheral strands, each having at least two side surfaces, one of which opposes an adjacent peripheral strand on one side in a circumferential direction and the other of which opposes an adjacent peripheral strand on the other side in the circumferential direction, so as to form an assembly conductor in which the center strand and the peripheral strands are aligned; twisting the plurality of peripheral strands around the center strand that forms the assembly conductor; and plastic forming the twisted assembly conductor into a substantially rectangular sectional shape. The peripheral strand provided with the two side surfaces has a sectional shape in which a width between the side surfaces becomes narrower toward the center strand.

Manufacturing method of assembly conductor, and electric motor provided with assembly conductor

A method of manufacturing an assembled conductor includes: arranging a plurality of peripheral wires having anisotropic cross-sectional shapes around a central wire; bundling the central wire and the peripheral wires that have been arranged, to form a conducting wire bundle; and rolling the conducting wire bundle to form the assembled conductor. The arranging includes a bending process for bending the plurality of peripheral wires in directions along imaginary lines that extend radially relative to an axis of the central wire on an imaginary plane intersecting the axis of the central wire.

Method of manufacturing assembled conductor and electric motor

A pin fin forming method is a method of forming a plurality of pin fins on a surface of a metal plate by subjecting the metal plate to extrusion using a die having a plurality of through-holes and a roll. The pin fin forming method includes placing the metal plate between the die and the roll, and pressing the metal plate from a first end of the metal plate to a second end of the metal plate, by moving the roll relative to the die. The metal plate is pressed from the first end of the metal plate to the second end of the metal plate, in a state where a side surface of the second end of the metal plate and an upper surface of the second end of the metal plate are fixed.

Pin fin forming method

A surface roughening apparatus includes a first mold and a second mold. The first mold has a plurality of first protrusions. The first mold presses a metallic material to form recesses corresponding to respective shapes of the first protrusions in a surface of the metallic material. The second mold has a plurality of second protrusions. After the first mold presses the metallic material, the second mold presses the metallic material, thereby deforming each recess into an undercut shape. A height of each first protrusion is greater than a height of each second protrusion. A tip angle of each first protrusion is smaller than a tip angle of each second protrusion.

Surface roughening apparatus for metal stock and surface roughening method for metal stock

In a method for manufacturing a multi-stage gear in which no gap is formed between a small-diameter gear and a large-diameter gear, there are included a first step of forming the small-diameter gear on an outer peripheral surface of a workpiece, a second step of forming a large-diameter gear part by plastically deforming an end portion of the workpiece to increase the diameter thereof, and a third step of forming the large-diameter gear by cutting the large-diameter gear part.

Method for manufacturing multi-stage gear, and multi-stage gear

A turbocharger includes: a turbine wheel that is driven by exhaust gas from an engine and supported rotatably by a predetermined rotary shaft; and a turbine housing that forms an exhaust gas passage that leads the exhaust gas to the turbine wheel, wherein the turbine housing includes a housing main body constituted by a plate-form member and a reinforcement member that forms the exhaust gas passage together with the housing main body and reinforces the housing main body, the reinforcement member includes a pair of annular portions having a substantially annular shape and provided about an axial center of the rotary shaft at an interval in an axial direction of the rotary shaft, and a connecting portion that connects the pair of annular portions, and the pair of annular portions and the connecting portion are molded integrally by implementing deformation processing on the plate-form member.

Growing community of inventors

Nagoya, Japan

Hirofumi Inoshita