Title:
ボールねじ機構
Document Type and Number:
Japanese Patent JP6413555
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a ball screw mechanism which makes an influence of collision energy received by a stopper hardly exerted on a ball screw.SOLUTION: A ball screw mechanism comprises: a screw shaft having a spiral screw groove at an external peripheral face; a nut having a screw groove which opposes the screw groove of the screw shaft at an internal peripheral face; a plurality of balls which are rollingly arranged in a spiral ball rolling path which is formed of both the screw grooves of the screw shaft and the nut; a ball circulation path which is formed in the nut, and circulates and returns the balls to a starting point from a terminal point of the ball rolling path. At an internal peripheral part, a flange part which is fit to a protrusion of the nut is arranged at a tip, a cylindrical stopper into which the screw shaft is inserted is arranged at least at one end of the screw shaft, a collision absorption member is arranged at the tip, and the tip and the collision absorption member are fixed to each other with an adhesive.SELECTED DRAWING: Figure 1
Inventors:
Yasuaki Abe
Application Number:
JP2014196301A
Publication Date:
October 31, 2018
Filing Date:
September 26, 2014
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F16H25/22; F16H25/20; F16H25/24
Domestic Patent References:
| JP57061263U | ||||
| JP2014173625A | ||||
| JP2009103199A | ||||
| JP62054365U |
Attorney, Agent or Firm:
Sakai International Patent Office