JPS63180813U

JPS63180813U -

Info

Publication number: JPS63180813U
Application number: JP7222487U
Authority: JP
Priority date: 1987-05-14
Filing date: 1987-05-14
Publication date: 1988-11-22

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の一実施例を示すも
ので、第１図は一部を破断して示す側面図、第２
図及び第３図は組立経過を示す要部の縦断側面図
であり、第４図は第１の従来例の縦断側面図、第
５図は第２の従来例の縦断側面図である。図中、１１は本体ケース、１６は受光素子、２
０は連結筒部、２０ａはねじ部、２１はロツクス
ペーサ、２２はロツクナツト、２３は固定筒部、
２３ａはねじ部、２４，２５は光フアイバを示す
。 Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a partially cutaway side view and Figure 2 being a partially cutaway side view.
3 and 3 are longitudinal sectional side views of main parts showing the assembly process, FIG. 4 is a longitudinal sectional side view of the first conventional example, and FIG. 5 is a longitudinal sectional side view of the second conventional example. In the figure, 11 is the main body case, 16 is the light receiving element, 2
0 is a connecting cylinder part, 20a is a threaded part, 21 is a lock spacer, 22 is a lock nut, 23 is a fixed cylinder part,
23a is a threaded portion, and 24 and 25 are optical fibers.

Claims

[Scope of utility model registration request]

A connecting cylinder part that protrudes from the front wall of the main body case and has a threaded part on the outer periphery and faces the light emitting element or the light receiving element in the main body case, and a cylindrical shape with the base end inserted into the connecting cylinder part. A lock spacer, a fixed cylinder part inserted through the lock spacer and having a threaded part formed on the inner periphery of the proximal end part, and the proximal end part inserted into the fixed cylinder part and screwed into the threaded part. The optical fiber is fixed and the end face of the proximal end portion is screwed into the optical fiber corresponding to the light emitting element or the light receiving element and the threaded part of the connecting cylinder part, and presses the outer periphery of the lock spacer in accordance with the screwing. An optical fiber coupling device comprising a lock nut that reduces the diameter of a lock spacer.