JP2004170496A - Fiber-optic cord fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attach and detach a fiber-optic cord without using any tool and to easily and surely fix the fiber-optic cord irrelevantly to its size. <P>SOLUTION: A fixture is equipped with a support member having a base part provided with a groove part and an uneven part, wall parts standing on both sides of the base part, and slide guide parts provided to the wall parts respectively, a lever member, and a fixed member having a lever provided with a rotary part which is provided to the root part of the lever member and has an axial hole in an oblong circle shape and a pawl part which is provided to the rotary part and engages the uneven part, a slider to which the lever is rotatably fitted, and slide parts provided on both sides of the slider; and the support member and fixed member are assembled by fitting the sliders in so that the slide part and slider guide part abut against the base part having a fiber-optic cord arranged in the groove part and the slider is pressed against the fiber-optic cord by engaging the pawl part with the uneven part by the rotation of the lever to fix the fiber-optic cord in the groove part. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical fiber cord fixture used in a communication device that accommodates an optical fiber cord.
[0002]
[Prior art]
Conventionally, optical fiber cord fixtures use fasteners such as screws to fix the optical fiber cord, remove the screw and disassemble the fixing member, introduce the optical fiber cord, and sandwich the optical fiber cord with the fixing member An optical fiber cord is fixed by attaching a screw again (for example, see Patent Document 1).
The optical fiber cord used here contains a steel wire for protecting the fiber inside the cord. This steel wire prevents the core of the optical fiber from breaking due to bending or compression.
[0003]
14 and 15 show an example thereof.
The optical fiber cord fixing device 1 includes a fixing base 2 provided with a triangular groove 3 for attaching an optical cable cord F, a holding plate 4, and screws 5.
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2001-201640
[Problems to be solved by the invention]
However, the conventional optical fiber cord fixture 1 shown in FIG. 14 requires tools and fastening parts (such as screws) when attaching and detaching the optical fiber cord F, and the operation is very complicated.
Further, in the conventional optical fiber cord fixing device 1, since the optical fiber cord F in the groove 3 is pressed down from above by the pressing plate 4 and fixed, the thickness of the optical fiber cord F that can be fixed by the size of the groove 3 is fixed. Is limited.
[0005]
Therefore, as shown in FIG. 16, when the optical fiber cord F is thin, the fixing is insufficient and the optical fiber cord F comes off.
Further, as shown in FIG. 17, if the optical fiber cord F is too thick, the pressing plate 4 may excessively press the optical fiber cord F and may be damaged in the worst case.
The present invention has been made to solve such a conventional problem, and an object thereof is to attach and detach an optical fiber cord without using a tool, and to easily attach and detach the optical fiber cord regardless of the size of the optical fiber cord. It is an object of the present invention to provide an optical fiber cord fixture which can be securely fixed.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 provides a base portion provided with a groove for disposing an optical fiber cord, and a concave and convex portion provided on both sides of the groove along the groove, a wall standing on both sides of the base, and these walls. A supporting member having a slider guide portion provided on each of the portions, a lever member, a rotating portion having an oblong shaft hole provided at a root portion of the lever member, and the unevenness provided on the rotating portion. A fixing member having a lever provided with a claw portion meshing with the portion, a slider for rotatably mounting the lever, and sliding portions provided on both sides of the slider, wherein the support member and the fixing member are fixed. The member is assembled by fitting the slider so that the sliding portion and the slider guide portion are in contact with the base on which the optical fiber cord is arranged in the groove, and the lever is rotated. The claw portion engaged with the uneven portion pressing said slider to said optical cable cord, characterized in that it is configured to secure the optical cable cord in said groove.
[0007]
According to a second aspect of the present invention, in the optical fiber cord fixing device according to the first aspect, the wall portion has projections facing each other, the lever member has projections on both side portions, and the optical cable cord by the lever is provided. It is characterized in that the projection of the lever is locked to the projection of the wall portion when the is fixed.
According to a third aspect of the present invention, in the optical fiber cord fixing device according to the first aspect, the groove has a bottom having a width greater than a cross-sectional shape of the optical fiber cord and a height smaller than a cross-sectional shape of the optical fiber cord. And a wall having a rectangular shape.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
FIG. 1 is an exploded perspective view of an optical fiber cord fixture 10 according to the present embodiment.
The optical fiber cord fixing device 10 according to the present embodiment includes a support member 20 provided with a groove 22 for disposing an optical fiber cord F, and a fixing member 30 fixed to the support member 20 via a lever 31.
[0009]
First, the support member 20 will be described with reference to FIGS.
The support member 20 is provided with a groove portion 22 for disposing the optical fiber cord F, and a base portion 21 having a flat surface provided with two concave and convex portions 23 along the groove portion 22 on both sides of the groove portion 22, and standing on both sides of the base portion 21. It has two L-shaped cross-section walls 24 to be provided, and two slider guides 25 provided on the two L-cross-section walls 24, respectively.
[0010]
The groove 22 is formed at the center of the base 21 from the end 21a to the end 21b. The groove portion 22 is formed by a rectangular groove including a bottom portion 22a having a larger width than the cross-sectional shape of the optical fiber cord F and two wall portions 22b having a height smaller than the cross-sectional shape of the optical fiber cord F. .
On the base 21, two L-shaped protrusions 26 are provided at an end 21 b opposite to the two concave-convex portions 23 so that the ends are located on the extension of the two walls 22 b of the groove 22. It is. The two L-shaped cross-section projections 26 are connected to the two L-shaped cross-section walls 24, respectively.
[0011]
The two wall portions 24 having an L-shaped cross section project so that their top portions 24a face each other, and a slider guide portion 25 is provided between the top portion 24a and the wall portion 24.
The slider guide portion 25 is formed of a plate-like body having a triangular cross section provided with an inclined surface 25a having a downward slope from the end 21a of the base 21 toward the end 21b.
[0012]
On the top 24a of the two L-shaped cross-section wall portions 24, elongated protrusions 24b facing each other are provided on the two L-shaped cross-section projections 26 side.
The two uneven portions 23 provided on both sides of the groove portion 22 along the groove portion 22 are determined in terms of the interval and height of the unevenness so that they can be engaged with a claw portion 34 provided on a lever 31 described later.
[0013]
Next, the fixing member 30 will be described with reference to FIGS.
The fixing member 30 includes a lever 31, a slider 36, and a shaft 41.
The lever 31 includes a plate-shaped lever member 32, two oval-shaped rotating portions 33 having an oval-shaped shaft hole 33 a provided at a root portion of the lever member 32, and two oval-shaped rotating members. And a claw portion 34 provided at the lowermost end of the moving portion 33.
[0014]
On both sides of the lever member 32, there are provided projections 32a which are engaged with elongated projections 24b formed on the wall portion 24 of the support member 20.
The claw portion 34 has three claws, and meshes with the two uneven portions 23 provided on the support member 20.
The slider 36 has a cord fixing portion 37 for pressing and fixing the optical fiber cord F, and two arms 38 provided on both sides of the cord fixing portion 37.
[0015]
At the center of the lower surface of the cord fixing portion 37, a concave portion 37a having the same width as the groove 21 of the support member 20 is provided from the end 36a to the end 36b.
On the upper surface of the two arm portions 38, a sliding portion 39 formed of an inclined surface is provided. Like the slider guide 25, the sliding portion 39 is provided at the end 36a of the slider 36 so that the slider 39 can contact the slider guide 25 of the support member 20 when the support member 20 and the fixed member 30 are assembled. It is formed by an inclined surface 39a having a downward slope toward the end 36b.
[0016]
An opening 40 is provided between the cord fixing part 37 and the two arms 38 for disposing the two rotating parts 33 of the lever 31.
Shaft holes 37b and 38a are respectively formed in the cord fixing portion 37 and the two arm portions 38 so that the shaft 41 can be inserted through the two rotating portions 33 of the lever 31 so that the lever 31 can be freely rotated. Is provided.
[0017]
Next, the operation of the thus configured optical fiber cord fixing device 10 according to the present embodiment will be described.
First, as shown in FIG. 1, the members that have been disassembled are assembled. That is, as shown in FIG. 9, the optical fiber cord F is arranged in the groove 21 of the support member 20 and the lever 31 and the slider 36 are assembled via the shaft 41 to assemble the fixing member 30.
[0018]
Next, as shown in FIGS. 10 and 11, the fixing member 30 is inserted into the support member 20 with the lever 31 raised. Here, when the lever 31 is raised, since the claw portion 34 does not engage with the uneven portion 23, the sliding portion 39 of the fixing member 30 moves along the slider guide portion 25 of the support member 20. Then, the optical fiber cord F can be inserted until it is pressed.
[0019]
Next, as shown in FIG. 11, after the sliding portion 39 of the fixing member 30 is inserted all the way along the slider guide portion 25 of the supporting member 20, as shown in FIGS. When the lever 31 is depressed, the claw portion 34 meshes with the concave / convex portion 23 in the middle, and the slider 36 is further pushed to the back and pressed against the optical fiber cord F. In the lever 31, the projection 32a is hooked and fixed to the elongated projection 24b for fixing.
[0020]
Here, the slider 36 of the fixing member 30 moves up and down depending on the thickness of the optical fiber cord F, but can be absorbed by the long hole 33 a of the lever 31.
Thus, the fixing of the optical fiber cord F is completed.
As described above, according to the optical fiber cord fixing device 10 according to the present embodiment, the supporting member 20 and the fixing member 30 are provided on the base 21 on which the optical fiber cord F is disposed in the groove 22 and the sliding portion 39 and the slider. After the slider 36 is fitted and assembled so that the guide portion 25 comes into contact with the guide portion 25, the lever 31 is rotated to engage the claw portion 34 with the concave / convex portion 23, and press the slider 36 against the optical cable cord F. The optical cable cord F can be fixed without using any tool.
[0021]
Further, according to the optical fiber cord fixing device 10 according to the present embodiment, the support member 20 and the fixing member 30 are assembled via the sliding portion 39 and the slider guide portion 25, and the shaft hole 33a of the lever 31 is Since it has an elliptical shape, even if the thickness of the optical fiber cord F varies, the same holding force can be secured. Similarly, even if the position of the slider 36 changes due to the thickness of the optical fiber cord F, the slider 36 can be pushed down reliably.
[0022]
Further, according to the optical fiber cord fixing device 10 according to the present embodiment, the gap for holding the optical fiber cord F by sandwiching the optical fiber cord F between the base 21 and the slider 36 and further pressing down the slider 36 with the force of the lever 31. To increase the holding power.
Further, according to the optical fiber cord fixing device 10 according to the present embodiment, when removing the optical fiber cord F after fixing, no tool is required, and the optical fiber cord F is merely pulled out by pulling out the slider 36 by raising the lever 31. Can be removed.
[0023]
【The invention's effect】
According to the present invention, a tool such as a screwdriver is not required when attaching an optical fiber cord. Since fastening parts such as screws are not required at the time of fixing, a work area such as screw tightening is not required, and mounting work can be easily performed even in a small space. Since the fixing of the optical fiber cord is completed only by tilting the lever of the inserted fixing member, the fixing work can be performed simply and surely by anyone. Since the shaft hole of the lever has an oval shape, it is possible to cope with the difference in the thickness of the optical fiber cord. The lever can be unlocked and easily removed when removing the optical fiber cord once fixed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an optical fiber cord fixing device according to an embodiment of the present invention.
FIG. 2 is a plan view of a support member used for the optical fiber cord fixing device shown in FIG.
FIG. 3 is an end view of the support member shown in FIG. 2;
FIG. 4 is an end view of the support member shown in FIG. 2;
FIG. 5 is a perspective view of the support member shown in FIG. 2;
FIG. 6 is a perspective view of a lever used in the optical fiber cord fixing device shown in FIG.
FIG. 7 is a side view of the lever shown in FIG. 6;
FIG. 8 is an end view of a slider used in the optical fiber cord fixture shown in FIG.
FIG. 9 is an exploded perspective view of the optical fiber cord fixing device according to the embodiment of the present invention.
FIG. 10 is a perspective view showing a state where the optical fiber cord fixing device according to the embodiment of the present invention is assembled.
FIG. 11 is a side view showing an assembled state shown in FIG. 10;
FIG. 12 is a perspective view showing a fixed state of the optical fiber cord by the optical fiber cord fixture according to the embodiment of the present invention.
FIG. 13 is a side view showing the fixed state shown in FIG.
FIG. 14 is an exploded view showing a conventional optical fiber cord fixture.
FIG. 15 is a front view showing a fixed state of an optical fiber cord by a conventional optical fiber cord fixture.
FIG. 16 is a front view showing a fixed state of an optical fiber cord by a conventional optical fiber cord fixture.
FIG. 17 is a front view showing a fixed state of an optical fiber cord by a conventional optical fiber cord fixture.
[Explanation of symbols]
F Optical fiber cord 10 Optical fiber cord fixture 20 Supporting member 21 Base 22 Groove 23 Irregularities 24 Wall 25 Slider guide 26 Projection 30 Fixing member 31 Lever 32 Lever member 33 Rotating portions 33a, 37b, 38a Shaft hole 34 Claw portion 36 Slider 37 Cord fixing part 38 Arm part 39 Sliding part 40 Opening 41 Shaft

Claims (3)

A base for providing a groove for disposing an optical fiber cord, and irregularities provided on both sides of the groove along the groove, walls standing on both sides of the base, and slider guides provided on these walls, respectively; A support member having a lever member, a rotating portion having an oblong shaft hole provided in a root portion of the lever member, and a claw portion meshing with the uneven portion provided in the rotating portion. A fixed member having a lever provided, a slider for rotatably attaching the lever, and sliding portions provided on both sides of the slider,
The support member and the fixing member are assembled by fitting the slider such that the sliding portion and the slider guide portion are in contact with the base portion on which the optical fiber cord is disposed in the groove portion, and the lever is provided. The optical fiber cord fixing device, wherein the claw portion engages with the concave / convex portion by the rotation of the member to press the slider against the optical cable cord, thereby fixing the optical cable cord in the groove portion. The optical fiber cord fixing device according to claim 1,
The wall portion has projections facing each other,
The lever has projections on both sides,
An optical fiber cord fixing device, wherein a projection of the lever is engaged with a projection of the wall when the optical cable cord is fixed by the lever. The optical fiber cord fixing device according to claim 1,
The groove is formed by a rectangular groove including a bottom having a width greater than a cross-sectional shape of the optical fiber cord and a wall having a height smaller than the cross-sectional shape of the optical fiber cord. Fiber optic cord fixture.

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