JPH0525401U - Optical fiber fixture - Google Patents

Abstract

(57) [Abstract] [Purpose] To have a thin structure that can be easily mounted in a device and to which an optical fiber can be fixed. [Structure] The composite sheet 1 is formed by laminating a heat-melting resin sheet 11 and a heat-resistant resin sheet 12. Two
The sheets of composite sheet 1 are laminated on the side of the heat-fusible resin sheet 11, and the allowable bending radius of the optical fiber is about 3 at the center thereof.
A circular hole with a radius of 0 mm is drilled and joined along its circumference. An optical fiber is wound between two composite sheets, and the surface of the composite sheet is heated and lightly pressed to fix the optical fiber 3 which is melted and wound by the heat-meltable resin sheet.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an optical fiber fixing tool, and more particularly to an optical fiber fixing tool that is mounted in a device and fixes an optical fiber in a wound state.

[0002]

[Prior Art]

 Conventionally, this type of optical fiber fixture has a structure shown in FIG. FIG. 3 is a perspective view showing the structure of a conventional example. The optical fiber fixture has a reel structure in which a collar 41 is attached to both ends of a cylinder 42, and the optical fiber 3 is housed in a wound state.

[0003]

[Problems to be solved by the device]

 As described above, in the conventional example, since the reel is a cylindrical type, it is quite thick, and it is difficult to mount it in a compact device. In addition, the wound optical fiber is unfixed unless it is fixed with an adhesive tape or the like, and there is a problem that the optical fiber comes into contact with an unfavorable place and causes a trouble.

[0004]

[Means for Solving the Problems]

 The optical fiber fixing device of the present invention comprises a heat-fusible resin thin plate for fixing an optical fiber in a wound state by being melted by heating, and a heat-resistant resin having flexibility bonded to the thin plate. A first and a second composite thin plate, each of which is composed of a thin plate, and the heat-meltable resin thin plates stacked together so that the central portion of the first and second composite thin plates is equal to or greater than the allowable bending radius of the optical fiber. Are joined in a circle.

[0005]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1A and 1B are a perspective view and an enlarged sectional view, respectively, showing the structure of this embodiment. In FIG. 1 (a), an enlarged cross section of the portion AA is shown in FIG. 1 (b), which will be described below with reference to both figures. The composite sheet 1 is formed by laminating a heat-fusible resin sheet 11 and a flexible heat-resistant resin sheet 12. The two sheets of the composite sheet 1 are superposed on the side of the heat-fusible adhesive sheet 11, and a circular hole having a permissible bending radius of the optical fiber, that is, a radius of about 30 mm is formed in the center thereof. The two composite sheets 1 are joined at the joint portion 2 along the circumference of this hole.

FIG. 2 is a perspective view (a) showing a state in which the optical fiber of the present embodiment is fixed in a wound state, and an enlarged sectional view (b). In FIG. 2 (a), the optical fiber 3 is wound between two composite sheets 1, and then the both surfaces of the composite sheet 1 are heated and lightly pressed to melt the heat-meltable sheet 11, The wound optical fiber 3 is fixed. FIG. 2B shows an enlarged cross section of the portion AA in this figure, and the thickness of the optical fiber fixture in this fixed state is about 5 mm. In this embodiment, a circular hole for fixing is formed in the central portion of the composite sheet, but it may be omitted if it is not necessary.

[0007]

[Effect of the device]

 As described above, according to the present invention, the outer shape is thin and the accommodated optical fiber is firmly fixed, so that the present invention can be easily mounted in the device.

[Brief description of drawings]

FIG. 1 is a perspective view showing the structure of an embodiment.

FIG. 2 is a perspective view of the optical fiber of the embodiment fixed in a wound state.

FIG. 3 is a perspective view showing a structure of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Composite sheet 2 Joined part 3 Optical fiber 11 Thermofusible resin sheet 12 Heat resistant resin sheet

Claims (1)

[Scope of utility model registration request] 1. A heat-meltable resin thin plate for fixing an optical fiber that is melted by being heated and wound and a heat-resistant resin thin plate that is bonded to the heat-meltable resin thin plate and has flexibility. A first and a second composite thin plate, wherein the heat-meltable resin thin plates are overlapped and the central portions of the first and the second composite thin plates are joined in a circle having a bend radius larger than the allowable bending radius of the optical fiber. An optical fiber fixture characterized by.