公开(公告)号：US20170157744A1

公开(公告)日：2017-06-08

申请号：US15434519

申请日：2017-02-16

Applicant: NHK SPRING CO., LTD.

Inventor： Senri MORIYAMA ,  Satoshi AKIYAMA ,  Masaya KOMAZAKI ,  Go NAGAYASU ,  Hideki OKADA ,  Daisuke YOKOTA

IPC: B24C1/10 ,  F16F1/04 ,  B24C3/24

CPC classification number: B24C1/10 ,  B24C3/24 ,  F16F1/02 ,  F16F1/04

Abstract: A vertical motion impeller-type shot peening device performs a second shot peening to a coil spring including first shot peening indentations. The vertical motion impeller-type shot peening device includes a workpiece holding mechanism including a lower end turn support and an upper end turn support, a stress applying mechanism which compresses the coil spring, a rotation mechanism, and a projection mechanism which includes a pair of vertically movable impeller units. A first rough surface including first shot peening indentations is formed on a part of end turn portions of the coil spring. A second rough surface including second shot peening indentations is formed on the entire surface of wire except for the first rough surface.

公开(公告)号：US20130240328A1

公开(公告)日：2013-09-19

申请号：US13788772

申请日：2013-03-07

Applicant: NHK SPRING CO., LTD.

Inventor： Kotaro NUKUI ,  Satoshi AKIYAMA ,  Tsutomu FUKUNAGA ,  Masahiro CHIGASAKI

IPC: B65G47/24

CPC classification number: B65G47/24 ,  B25J19/02 ,  B65G17/485

Abstract: A guiding apparatus includes a hanger line that continuously conveys hangers that are suspended from the hanger line at predetermined intervals and a guide unit installed in the line and driven in synchronization with the line while holding at least one of the objects, thereby maintaining the attitude of the object and guiding the attitude maintained object along the line.

Abstract translation: 引导装置包括衣架线，其以预定间隔连续地传送悬挂在衣架线上的衣架，以及安装在该线中的引导单元，同时保持至少一个物体，同时保持至少一个物体，从而保持 对象和指导态度保持客观的线条。

公开(公告)号：US20190232462A1

公开(公告)日：2019-08-01

申请号：US16383231

申请日：2019-04-12

Applicant: NHK SPRING CO., LTD.

Inventor： Senri MORIYAMA ,  Satoshi AKIYAMA ,  Masaya KOMAZAKI ,  Go NAGAYASU ,  Hideki OKADA ,  Daisuke YOKOTA

IPC: B24C1/10 ,  F16F1/04 ,  B24C3/24 ,  F16F1/02

CPC classification number: B24C1/10 ,  B24C3/24 ,  F16F1/02 ,  F16F1/04

Abstract: A coil spring includes a helically formed wire having end turn portions at ends thereof, a plurality of first rough surfaces, each including first shot peening indentations formed on a part of a surface of the end turn portions, and a second rough surface including second shot peening indentations formed on the entire surface of the wire except for the first rough surface. The second rough surface has a surface roughness different from that of the first rough surface.

公开(公告)号：US20180354097A1

公开(公告)日：2018-12-13

申请号：US16107507

申请日：2018-08-21

Applicant: NHK SPRING CO., LTD.

Inventor： Hideki OKADA ,  Daisuke YOKOTA ,  Senri MORIYAMA ,  Satoshi AKIYAMA ,  Masaya KOMAZAKI ,  Go NAGAYASU

IPC: B24C1/10

CPC classification number: B24C1/10 ,  B24C3/24 ,  B24C3/32 ,  B24C9/00

Abstract: A shot peening device includes a turntable which rotates about a revolution axis, holding mechanism which moves with the turntable, pressure mechanism which compresses a coil spring, rotation mechanism which rotates the coil spring, projection mechanism which projects shots to the compressed coil spring, load cell which detects a load applied to the coil spring, and controller. A signal output from the load cell is input to the controller, and the controller detects a chronological change of the load applied to the coil spring during the shot peening.

公开(公告)号：US20180354098A1

公开(公告)日：2018-12-13

申请号：US16107629

申请日：2018-08-21

Applicant: NHK SPRING CO., LTD.

Inventor： Hideki OKADA ,  Daisuke YOKOTA ,  Senri MORIYAMA ,  Satoshi AKIYAMA ,  Masaya KOMAZAKI ,  Go NAGAYASU

IPC: B24C1/10

Abstract: A coil spring processing device includes an end positioning device, shot peening device, and controller. The end positioning device positions ends of a coil spring. The shot peening device includes a turntable mechanism, pressure mechanism, rotation mechanism which rotates the coil spring, and projection mechanism which projects shots. Holding mechanisms each include a lower shifting prevention jig and an upper shifting prevention jig. The controller stops a first holding mechanism and a second holding mechanism in rotation stop positions corresponding to end turn portions of the coil spring.