Title:
サイドレール
Document Type and Number:
Japanese Patent JP6762657
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a side rail which can be easily distinguished in vertical directivity.SOLUTION: A side rail 1 has an outer peripheral surface 14 turning to the outside in a diametrical direction, an inner peripheral surface 13 turning to the inside in the diametrical direction, a first axial side surface 11 turning one side in an axial direction, and a second axial direction side surface 12 turning to the other side in the axial direction and being parallel with the first axial direction side surface 11. The outer peripheral surface 14 has a chamfering portion 30 between the outer peripheral surface 14 and the second axial direction side surface 12. The chamfering portion 30 is formed by a tapered surface which gradually decreases a diameter from a position on the outer peripheral surface 14 separated by 0.05mm or more from the first axial direction side surface 11 toward the second axial direction side surface 12, toward a side of the second axial direction side surface 12. A tapered surface 30a has a first tapered surface portion 30a1, and a second tapered surface portion 30a2 which is provided between the first tapered surface portion 30a1 and the outer peripheral surface 14 and has a smaller inclination angle to the axial direction than the first tapered surface portion 30a1.SELECTED DRAWING: Figure 4
Inventors:
Shimizu Taishi
Murayama Katsumi
Murayama Katsumi
Application Number:
JP2016076841A
Publication Date:
September 30, 2020
Filing Date:
April 06, 2016
Export Citation:
Assignee:
Riken Co., Ltd.
International Classes:
F16J9/20; F02F5/00; F16J9/06
Domestic Patent References:
| JP5833276B2 | ||||
| JP2009091927A |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Kenichiro Kataoka
Keisuke Kawahara
Kenichiro Kataoka