Honda Giken Kogyo Kabushiki Kaisha

Honda Motor Co., Ltd.

Katsuyuki Nakajima

Akihiro Nemoto

Hitoshi Imai

Hideshi Sato

Takaji Mukumoto

Kazutoshi Takada

Koji Saito

Katsumune Inaki

Hiroki Tahira

Tetsuo Sugizono

Hiroaki Yamagishi

Osamu Takenaka

Yoshiharu Watabe

Hitoshi Karasawa

Takashi Kobayashi

Akinori Higuchi

Kazushige Nakatsuka

Seiichi Sasaki

Satoru Saito

Tetsuo Suzuki

Yuichi Nagao

Masao Nitta

Yasuo Watanabe

Daisuke Koshino

Hiroshi Takeda

Kanomi Hayashi

Seiichi Minegishi

Tomotsugu Takahashi

Yuji Narusaki

Yoriyuki Watanabe

Takehisa Kimura

Takeshi Yoshimura

Fumitaka Haga

Yoshiyuki Minowa

Nobuyuki Kouda

Shinichi Kuriyama

Tomomi KoSaka

Masanobu Ishikawa

Tsutomu Maruyama

A cylindrical workpiece cutting apparatus is provided with a holder in which a metal made cylindrical workpiece is mounted on an outer periphery of the holder and which is adapted to hold the workpiece over an entire length of the workpiece; annular recesses formed on the outer periphery of the holder at a predetermined interval; a laser outputting part provided at a position opposed to the holder and adapted to output laser beam to the workpiece; and a cover portion provided on surfaces of the annular recesses and adapted to prevent attachment of metal particles which are scattered during cutting the workpiece by the laser beam.

Cylindrical workpiece cutting apparatus

Provided is a metal ring manufacture method and a metal ring metal device capable of manufacturing a plurality of metal rings at good efficiency without damaging the metal rings. The metal rings (R) are detached from a drum retaining unit () by a metal ring holding unit () with the arrangement state thereof being maintained; thereafter, each metal ring (R) clamped in the arrangement state by a pair of fingers () of a metal ring clamping unit () is delivered sequentially in the arrangement direction by a ring delivering unit disposed in the second finger ().

Metal ring manufacture method and metal ring manufacture device

A rotatable workpiece holder for holding a hollow cylindrical workpiece thereon functions as a chiller for cooling the hollow cylindrical workpiece. A coolant, e.g., water, is supplied to the hollow cylindrical workpiece through second coolant passages and branch passageways defined in the workpiece holder, thereby cooling the hollow cylindrical workpiece. The coolant forms a film in a clearance between the outer surface of an annular side wall of the workpiece holder and the inner circumferential surface of the hollow cylindrical workpiece.

Apparatus and method for cutting hollow cylindrical workpiece

A first laser working method includes a step of irradiating the metallic work held by a rotation holding mechanism, with a nanosecond laser beam from a first laser oscillation mechanism, to form a through hole, and a step of irradiating, when the metallic work is rotated under the action of the rotation holding mechanism, the inner wall of the through hole with a picosecond laser beam from a second laser oscillation mechanism, thereby to finish the same. While forming the through hole, metal vapor is sucked from the outside of the metallic work. Then, the gas is fed from the outside of the metallic work, and the inside of the metallic work is suctioned. In a second laser working method, when a lower hole made through is radially enlarged, the exit side of the lower hole is kept lower in pressure than the laser incident (or entrance) side.

Laser working apparatus, and laser working method

A perforation method and an perforation apparatus in which a hollow member of a fuel injection nozzle is filled with a filler such as a zirconia ball, and a laser light is applied to the hollow member to form an injection hole while vibrating the zirconia ball using an ultrasonic vibrator. After the injection hole is formed, the laser light is introduced through the injection hole to the inside of the fuel injection nozzle, and thereby is applied to the vibrated zirconia ball.

Perforation method and perforation apparatus

A production system capable of further improving production efficiency and quality. The ring management system includes size measurement unit for measuring size of the ring, first convey unit for moving the ring w whose size has been measured, a first stocker having a plurality of storage positions for storing rings conveyed by the first convey unit, a second convey unit for conveying out the rings from the first stocker means for stacking, and a control unit. The control unit includes memory means for storing the rings size measured by the size measurement means in association with the storage position in the first stocker, first selection means for selecting a ring constituting a stacked ring according to the ring size stored in the memory means, and first instruction means to instruct the second convey unit to convey out the ring selected by the first selection means from the storage position pj in the first stocker.

Ring management system

There are disclosed a method and device for polishing a metal ring, which is capable of polishing a side edge of the metal ring without performing barrel polishing or polishing by grinding stones. Subsequently to a projecting step of projecting a metal ring W by clearing means, a first brush polishing step of polishing one edge of the metal ring W by a polishing brushis performed. Subsequently, an inverting step of inverting the metal ring W whose one edge is polished by the first brush polishing step is inverted by the inverting meansis performed. Subsequently, a second brush polishing step of polishing the other edge of the metal ring W which is inverted by the inverting step by the polishing brushis performed. Moreover, a clearing step of clearing the metal ring whose other edge is polished by the second brush polishing step by clearing meansis performed.

Method and device for polishing endless belt metal rings for continuously variable transmission

The present invention provides a production system capable of further improving production efficiency and quality. The ring management system comprises size measurement unitfor measuring size (l, t) of the ring w, first convey unitfor moving the ring w whose size has been measured, a first stockerhaving a plurality of storage positions for storing rings conveyed in by the first convey unit, a second convey unitfor conveying out the rings from the first stockermeans for stacking, and a control unit. The control unitincludes memory meansfor storing for each of the rings wi, size (li, ti) measured by the size measurement means in association with the storage position pi in the first stocker, first selection meansfor selecting a ring wj constituting a stacked ring according to the ring size stored in the memory means, and first instruction meansto instruct the second convey unitso as to convey out the ring selected by the first selection meansfrom the storage position pj in the first stocker

A metal ring with smaller stress concentration is manufactured, and the manufacture and maintenance of a rolling roller for transferring a mesh-shaped unevenness to the metal ring is facilitated. A mesh-like unevennessis formed to the surface of an inner circumference rolling roller. This unevennessis formed by rotating the inner circumference rolling rollerat a predetermined speed, and moving a grinderback and forth in the axial direction of the inner circumference rolling rollerwhile biasing the grinder toward the surface of the rollerwith predetermined force. The grain size of the grinder is between #270 and #1000. When the inner circumferential surface of the metal ringis rolled using the inner circumference rolling roller, a mesh-like unevennessis transferred onto the metal ring. Since the mesh-like unevennessis formed by transferring the unevennesshaving been formed by the grinder, the pitch of the unevenness is narrow and random, thus the laminated metal ringexerts good lubricity. Moreover, by subjecting the metal ringto solution treatment and nitriding treatment, a metal ringhaving high compressive residual stress and enhanced toughness is formed.

Method of manufacturing metal ring for endless metal belt

An apparatus for correcting the circumferential length of a metal ring has a drive rollerand a driven rollerpositionable closely to each other for training a metal ring W therearound, and a correcting rollerdisposed between the drive rollerand the driven roller. The apparatus also has a first displacement applying unit for displacing the drive rollerand the driven rolleraway from each other when the metal ring W is trained around the drive roller, the driven roller, and the correcting roller. The apparatus further includes spacersfor spacing the drive rollerand the driven rollera predetermined distance from each other when the drive rollerand the driven rollerare released from being displaced, a second displacement applying unitfor displacing the correcting rollerin a direction perpendicular to the direction in which the drive rollerand the driven rollerare displaced and also to extend the metal ring W, thereby to correct the circumferential length of the metal ring W, and a third displacement applying unitfor displacing the drive rollerand the driven rollertoward each other when the drive roller, the driven roller, and the correcting rollerare released from being displaced by the first and second displacement applying units

Device for correcting circumferential length of metal ring

A rolling apparatus is capable of rolling a metal ring to an accurate circumferential length and preventing the metal ring from dropping off. The rolling apparatus includes a metal ring support assembly having tension rollersfor supporting a metal ring W, a rolling rollerfor rolling the metal ring W, a rolling assembly for pressing the rolling rolleragainst the metal ring W, a tension applying assembly having a tension cylinderengaging tension roller support members, on which one of the tension rollersis rotatably supported, for displacing the tension rollerto apply tension to the metal ring W, and a rolling processing completing assemblyfor detecting a completion of rolling of the metal ring W and inactivating the rolling assembly and the tension applying assembly. The rolling assembly has a first resilient memberinterposed between the rolling cylinderand its piston rod. The tension applying assembly has a second resilient memberinterposed between a piston rodof the tension cylinderand the tension roller support member

Rolling device for ring

A belt for use in a continuously variable transmission comprises an annular hoop of laminated metal elements each having a body and a head joined thereto with a pair of recesses defined therebetween, and a pair of rings inserted respectively in the recesses and each comprising a plurality of laminated metal web-shaped rings. The belt is manufactured by an element production line for producing the elements through a plurality of processes, a ring production line for producing the laminated rings through a plurality of processes parallel to the element production line, and a belt assembly line joined to the element production line and the ring production line, for bundling the elements with the laminated rings thereby to assemble the belt. The elements are inspected for a produced state thereof at a terminal end of the element production line and those elements which are judged as acceptable are sent to the belt assembly line. The laminated rings are inspected for a laminated state thereof at a terminal end of the ring production line and those laminated rings which are judged as acceptable are sent to the belt assembly line. Belts are inspected for an assembled state at the belt assembly line and those belts which are judged as acceptable are delivered as products.

Method of and apparatus for manufacturing belt for continuously variable transmission

A laminated ring for use as a belt in transmitting power in a continuously variable transmission is produced by welding opposite ends of a sheet of maraging steel to produce a plurality of rings, and rolling said rings to a predetermined length. The rings are nitrided in a salt-bath nitriding process by dipping the rings in a molten salt containing 38-46% of CNO and 1-2% of CN and heated to a temperature in the range from 480 to 530&deg; C., for a period of time ranging from 10 to 25 minutes. The nitrided rings are finally stacked into a laminated ring.

Molten salt composition for use in manufacturing laminated rings

A cylindrical drum, which comprises a sheet of maraging steel with welded opposite ends, is severed into a plurality of rings of predetermined width, and the rings are rolled to a predetermined length, after which circumferential lengths of the rings are corrected. The rings are aged by placing the rings into an aging chamber, heating the aging chamber to a predetermined aging temperature, and keeping the rings at the predetermined aging temperature for a predetermined period of time. Thereafter, the rings are nitrided by transferring the rings from the aging chamber into a nitriding chamber which is disposed independently of the aging chamber and has been heated to a predetermined nitriding temperature, while maintaining the rings at the aging temperature, keeping the rings at the nitriding temperature in an atmosphere containing at least an ammonia gas for a predetermined period of time, and cooling the rings. The rings are fitted and stacked together into a laminated ring for use as a belt in transmitting power in a continuously variable transmission.

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Sayama, Japan

Katsuyuki Nakajima