Title:
ボールねじ装置
Document Type and Number:
Japanese Patent JP6892027
Kind Code:
B2
Abstract:
A ball screw device includes: a screw shaft the outer peripheral surface of which has a first thread groove; a nut the inner peripheral surface of which is provided with a second thread groove that matches the first thread groove, and the outer peripheral surface of which is provided with a through hole; a plurality of balls that roll between the first thread groove and the second thread groove; a circulation component including a main body part and a pair of leg parts provided on both ends of the main body part, and that is provided on the nut; and a pin component that fixes the circulation component to the nut. Each of the leg parts is inserted into the through hole, the pin component is provided on the leg part in an overlapping manner, and the leg part is retained in the through hole by the pin component.
Inventors:
Kanta Sato
Yasuaki Abe
Kazuya Yamada
Mikishi Sakai
Yasuaki Abe
Kazuya Yamada
Mikishi Sakai
Application Number:
JP2020572258A
Publication Date:
June 18, 2021
Filing Date:
February 12, 2020
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F16H25/22
Domestic Patent References:
| JP200298212A | ||||
| JP200542763A |
Foreign References:
| US20090013811 |
Attorney, Agent or Firm:
Sakai International Patent Office