Title:
WINDOW STRUCTURE, METHOD FOR MANUFACTURING WINDOW STRUCTURE, AND WINDOW UNIT
Document Type and Number:
Japanese Patent JP2018034292
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a window structure excellent in durability at the time of collision of a flying object that may occur during machining (for example, broken pieces generated when a work tool constituting a machine tool is broken, a fixing member such as a bolt (jig) for fixing a work tool, and chips generated during processing) by a machine tool, a method for manufacturing such a window structure, and a window unit having such a window structure.SOLUTION: A window structure 2 is fitted to machine tool and used for visually checking the inside thereof. The window structure 2 includes a resin plate and a glass plate 3 which is made to adhere to the resin plate through an adhesive layer. When a horizontal steel ball impact test in which a steel ball of φ 5 mm and 0.5 gf collides against the glass plate 3 at 120 m/s, cracks occurring in the glass plate 3 are within a range (circle C) of 30 mm or less from the collision center Oof the glass plate 3 by the steel ball.SELECTED DRAWING: Figure 4
Inventors:
ITO TEPPEI
KAWASAKI KEI
KAWASAKI KEI
Application Number:
JP2016172100A
Publication Date:
March 08, 2018
Filing Date:
September 02, 2016
Export Citation:
Assignee:
SUMITOMO BAKELITE CO
International Classes:
B32B17/10; B23Q11/08; C09J123/08; C09J131/04; C09J175/04; C09J201/00
Domestic Patent References:
| JP2016067566A | 2016-05-09 |
Foreign References:
| WO2015008869A1 | 2015-01-22 |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi