Optical waveguides – Accessories – External retainer/clamp
Reexamination Certificate
1999-10-22
2001-10-23
Palmer, Phan T. H. (Department: 2874)
Optical waveguides
Accessories
External retainer/clamp
C385S136000
Reexamination Certificate
active
06308000
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATION
This application claims the priority benefit of Japanese Patent Application No. 10-339318, filed Nov. 30, 1998, the entire subject matter of which is incorporated herein of reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a telecommunication device, and more particularly to an optical transmission device having a support member for holding an optical fiber.
2. Description of the Related Art
In an optical data transmission system, an optical fiber is used as a transmission medium. Generally, an UV resin coated optical fiber having 0.25 mm diameter is used in a telecommunication device in this field. As the optical fiber is formed of glass, scrupulous care should be taken in handling it. Due to this requirement, a support member is used in a telecommunication device for winding and holding the optical fiber in a suitable condition when the optical fiber is retained in a container of the telecommunication device. In the related art, the support member and the container are molded into a single integral structure.
However, as the support member and the container of the telecommunication device are formed into the single integral structure using a mold, it is required to change the design of the entire mold even if only the container's shape is changed and the support member's shape is not necessary to change at all. Therefore, the cost performance is not effective.
Further, in such a structures, the guides on the support member are required to prevent the optical fiber from getting out of the support member. However, this complicates the support member's shape and it is not so easy to form a support member with a complicated shape in the single integral structure with the container.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an improved optical telecommunication device having a support member for an optical fiber in a container, that corrects the problems mentioned above. To achieve this object, in accordance with one aspect of the invention, the support member is formed independently from the other parts. In accordance with a second aspect of the invention, the support member is formed of elastic material, and in accordance with a third aspect of the invention, the upper guide of the support member is inclined.
REFERENCES:
patent: 5530787 (1996-06-01), Arnett
Ikeda Mikiko
Kasai Hiroshi
Mimura Junichi
OKI Electric Industry Co., Ltd.
Palmer Phan T. H.
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