JPH10197729A - Optical cable excessive length processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely process the excessive length of optical cable on a printed wiring board by forming a locking part at an excessive length processing part and freely turnably locking an optical cable holding part at the locking part. SOLUTION: Around an outer peripheral part 21f at a flange part 21a of excessive length processing member 21, a lock part 21g is formed toward the opposite side of printed wiring board 27. This locking part 21g is formed from a short cylindrical supporting part 21h communicated to the outer peripheral part 21f and a loop part 21i, which has a circular cross section, communicated to the edge of supporting part 21 on the opposite side of printed wiring board 27. Then, an optical cable holding member 23 is composed of an attaching part 23a, protrusion preventing part 23b and detachment preventing part 23c. Then, a recessed part 23d of optical cable holding member is engaged with the loop part 21i of excessive length processing member 21, and plural optical cable holding members 23 are freely turnably locked to the excessive length processing member 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable surplus length processing device for processing an extra length of an optical cable routed on a printed wiring board.

[0002]

2. Description of the Related Art Recently, communication equipment using an optical cable has been reduced in size, and a single printed circuit board on which various components are mounted has realized a single communication line function. Along with this, there has been developed an optical cable extra length processing tool for treating an extra length of an optical cable wired on a printed wiring board.

FIG. 10 shows a surplus length processing state of a printed wiring board in which such an optical cable extra length processing tool is used, wherein reference numeral 1 denotes an optical cable extra length processing unit, and reference numeral 3 denotes a printed wiring board. On the printed wiring board 3, two optical cable extra length processing tools 5, a plurality of electronic components 7, and two optical modules 9 are mounted.

Each optical module 9 is connected to a plug 13 attached to one end of an optical cable 11. The extra length portion 11a of the optical cable 11 is bundled in an annular shape, and one end of the annular extra length portion 11a is held by the optical cable extra length processing tool 5. Then, the protective cover 15 is disposed on the printed wiring board 3, and the protective cover 15 is attached to the mounting hole 3 a of the printed wiring board 3 using screws 17.

The optical cable 1 is protected by the protective cover 15.
1 is prevented from floating from the printed wiring board 3, and the optical cable 11 is prevented from being damaged by contact with another adjacent printed wiring board.

FIG. 11 shows the details of the optical cable extra-length processing device 5. The optical cable extra-length processing device 5 includes a holding portion 5a for holding the optical cable 11, a detachment preventing band 19 for preventing the optical cable 11 from being detached, And a fixing portion 5b for fixing the holding portion 5a to the printed wiring board 3.

[0007]

However, in such a conventional optical cable extra-length processing unit 1, the extra length portion 11a of the optical cable 11 bundled in an annular shape is held by the optical cable extra-length processing tool 5, so that the optical cable 11 has an extra length. Since the extra length processing of the optical cable 11 is performed, the extra length portion 11a must be bundled in an annular shape while considering the radius of curvature of the optical cable 11, and there is a problem that the extra length processing of the optical cable 11 requires a lot of man-hours. Was.

The extra length portion 11a of the optical cable 11
However, since the protective cover 15 is attached to the printed wiring board 3 using screws 17 in order to prevent the printed wiring board 3 from floating, there is a problem that a large number of man-hours are required for assembling the printed wiring board. Was. Since the printed wiring board 3 is covered with the protective cover 15, the protective cover 15 must be removed in order to perform a mechanism inspection for checking the mounting state of the components 7 mounted on the printed wiring board 3. There was a problem.

Further, when the optical cable 11 held by the optical cable extra-length processing tool 5 is detached from the optical cable extra-length processing instrument 5, the stripping prevention band 19 of the optical cable extra-length processing instrument 5 does not have to be removed with a tool. If the tool hits the optical cable 11, the optical cable 11 may be damaged. SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an optical cable extra-length processing device capable of easily and reliably performing extra-length processing of an optical cable on a printed wiring board. And

[0010]

According to a first aspect of the present invention, there is provided an optical cable surplus length processing device, wherein a flange portion is disposed in parallel with a printed wiring board, and projects from a center of the flange portion toward a side opposite to the printed wiring board. An excess length processing member having a winding portion formed and wound with an optical cable, and a locking portion formed on an outer peripheral portion of the flange portion toward a side opposite to the printed wiring board; and the locking portion. A mounting portion that is rotatably locked to the mounting portion, a protruding preventing portion that is connected to the mounting portion and that prevents the optical cable wound around the winding portion from protruding outside, and the mounting of the protruding preventing portion. A plurality of optical cable holding members having a disconnection prevention portion that is connected to an end on the opposite side of the portion and that prevents the optical cable wound around the winding portion from coming off from the flange portion; and A fixing member for fixing to the printed wiring board is provided. Characterized in that it comprises Te.

According to a second aspect of the present invention, there is provided the optical cable extra length processing device according to the first aspect, wherein the locking portion of the extra length processing member is formed in an annular shape, and the optical cable holding member is provided with the engaging member. It is characterized in that it is movably locked along the stop. According to a third aspect of the present invention, there is provided the optical cable extra length processing device according to the first or second aspect, wherein the optical cable holding member is detachably engaged with the engaging portion of the extra length processing member. It is characterized by having.

According to a fourth aspect of the present invention, there is provided the optical cable surplus length processing device according to any one of the first to third aspects, wherein the optical cable holding portion has a protrusion prevention portion and a detachment prevention portion. Is characterized in that a notch for taking out the optical cable is formed. According to a fifth aspect of the present invention, there is provided the optical cable extra length processing device according to any one of the first to fourth aspects, wherein the fixing member is inserted through the winding portion of the extra length processing member. Characterized in that a through hole is formed.

(Function) In the optical cable extra length processing device of the first aspect, the extra length processing member is disposed on the printed wiring board,
It is fixed to the printed wiring board by the fixing member. Further, the plurality of optical cable holding members are rotatably locked to locking portions formed on the outer peripheral portion of the flange portion of the excess length processing member.

[0014] Then, the optical cable holding member is turned outward, and a space is formed between the excess length processing member and the optical cable holding member. In this state, the optical cable is wound around the winding portion. After this winding, the optical cable holding member is rotated inward to a position where the optical cable is held.

[0015] The protrusion preventing portion of the optical cable holding member prevents the optical cable from protruding to the outside, and the detachment preventing portion of the optical cable holding member prevents the optical cable from coming off above the flange portion. In the optical cable extra length processing device of the second aspect, the optical cable holding member is movably engaged with the engaging portion of the extra length processing member formed in an annular shape, and the curvature of the extra length portion of the wound optical cable is reduced. Maintained in optimal condition.

According to a third aspect of the present invention, there is provided an optical cable extra length processing apparatus.
The optical cable holding member is detachably engaged with the engaging portion of the extra length processing member, and the curvature of the extra length portion of the wound optical cable is maintained in an optimal state. According to the optical cable extra length processing device of the fourth aspect, the notch portions are formed in the protrusion prevention portion and the detachment prevention portion of the optical cable holding portion.

The optical cable holding member is locked at a predetermined position where the wound optical cable is taken out. Then, the optical cable is taken out from a predetermined position through the notch of the optical cable holding member. In the optical cable extra length processing device of the fifth aspect, the fixing member is inserted into the through hole formed in the winding portion of the extra length processing member, and the extra length processing member is fixed to the printed wiring board.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment (corresponding to claims 1 to 5) of an optical cable extra-length processing device according to the present invention. This optical cable extra-length processing device includes an extra length processing member 21, an optical cable holding member, and the like. 23 and screw 2
5 is comprised.

The extra length processing member 21 is made of a resin such as polyacetal, for example, and has a flange portion 21 a arranged in parallel with the printed wiring board 27. At the center of the flange portion 21a, a winding portion 21b that projects toward the side opposite to the printed wiring board 27 and around which the optical cable 29 is wound is formed. The winding portion 21b includes a cylindrical portion 21c, and a lid portion 21 formed at an end of the cylindrical portion 21c opposite to the printed wiring board 27.
and a through hole 21e through which the screw 25 is inserted is formed at the center of the lid 21d.

In this embodiment, the outer diameter of the winding portion 21b is 60 mm. Further, the outer peripheral portion 21 of the flange portion 21a
f, the locking portion 2 facing away from the printed wiring board 27
1 g is formed. The locking portion 21g is provided on the outer peripheral portion 21f.
A short cylindrical support part 21h connected to the support part 21;
The cross section connected to the end of the printed wiring board 27 on the side opposite to the printed wiring board 27 is formed of a circular annular portion 21i.

The optical cable holding member 23 is made of, for example, a resin such as polyacetal, and includes an attachment portion 23a, a protrusion prevention portion 23b, and a detachment prevention portion 23c. The mounting portion 23a is formed in a quadrangular prism shape, and a concave portion 23d is formed on one side of the quadrangular prism to lock the annular portion 21i of the extra-length processing member 21.

The mounting portion 23 along the longitudinal direction of the concave portion 23d
A protruding prevention portion 23b is connected to one surface of a, and the protruding prevention portion 23b extends in a direction opposite to the concave portion 23d. Also, at the end opposite to the mounting portion 23a of the protrusion prevention portion 23b, on the same side as the mounting portion 23a,
Detachment prevention unit 2 extending perpendicular to protrusion prevention unit 23b
3c is connected.

Further, a notch 23e is formed toward the protrusion preventing portion 23b from the tip of the detachment preventing portion 23c. Then, the recess 23d of the optical cable holding member described above.
Are engaged with the annular portion 21i of the extra-length processing member 21, and the plurality of optical cable holding members 23 are rotatably locked to the extra-length processing member 21.

A hexagon nut 31 is disposed on a hole 27a formed in the printed wiring board 27. As shown in FIG. 2, the lower end of the hexagon nut 31 is
To the printed wiring board 27. And
The extra length processing member 21 is arranged at the upper end of the hexagon nut 31, the screw 25 is screwed into the upper end of the hexagon nut 31 through the through hole 21 e of the lid 21 d, and the extra length processing member 21 is printed via the hexagon nut 31. It is fixed to the wiring board 27.

FIG. 3 shows a state in which the optical cable 29 is wound around the optical cable extra length processing device, and reference numeral 23 is an optical cable holding member. When the optical cable 29 is wound, first, the optical cable holding member 23 locked to the excess length processing member 21 is rotated around the concave portion 23d until the protrusion preventing portion 23b is parallel to the printed wiring board 27. Defeated.

A space 35 for winding the optical cable 29 is formed between the excess length processing member 21 and the optical cable holding member 23. Through this space 35, the optical cable 29 is wound around the winding portion of the excess length processing member 21. It is wound along 21b.

After the optical cable 29 is wound in this way, as shown in FIG. 4, the optical cable holding member 23 locked on the extra length processing member 21 is raised about the concave portion 23d as an axis, and The member 23 is returned to the original position. Then, the optical cable 29 is connected to the optical cable holding member 2.
3 and the wound portion 2 of the wound optical cable 29 by the protrusion prevention portion 23b of the optical cable holding member 23.
1b is prevented from coming off in the outward direction.

Further, the detachment preventing portion 23c prevents the optical cable 29 from detaching upward. FIG. 5 shows a state in which the extra length portion 29a of the optical cable 29 is wound around the optical cable extra length processing device as described above, and reference numeral 23 is an optical cable holding member. In this state, the optical cable holding members 23f, 23f
The optical cables 29b and 29c are respectively taken out from the space between 23g and 23g and 23h.

Then, the optical cable holding member 23f is moved along the annular portion 21i of the excess length processing member 21, and the optical cable holding member 23f is located near the position where the optical cable 29b is taken out, as shown in FIG. The curvature of the extra length 29d of the optical cable 29b is maintained in an optimum state. Further, by locking a new optical cable holding member 23i near the position where the optical cable 29 is taken out, as shown in FIG. 7, the curvature of the extra length portion 29a of the wound optical cable 29 is maintained in an optimal state. The curvature of the extra-length portion 29d of the optical cable 29b at the take-out position is maintained in the optimum state.

Further, a new optical cable holding member 23i
When the optical cable 29b is locked, the wound optical cable 29b is taken out from a predetermined position by taking out the optical cable 29b through the notch 23e of the optical cable holding member 23i, as shown in FIG.

Further, when the optical cable 29 held by the optical cable extra length processing device is detached from the optical cable extra length processing device, the optical cable holding member 23 is first fallen outward with a finger. Then, the optical cable 29 is removed from the space 35 formed between the excess length processing member 21 and the optical cable holding member 23. In the optical cable extra-length processing device configured as described above, the locking portion 21g is formed on the extra-length processing member 21 and the optical cable holding member 23 is rotatably locked on the locking portion 21g. At the time of winding, holding, and removing, the optical cable holding member 23 can be rotated to an optimum position,
The extra length processing of the optical cable 29 on the printed wiring board 27 can be easily and reliably performed.

The outer diameter of the winding portion 21b is
Since the optical cable 29 is adjusted to a predetermined curvature at the time of winding, the optical cable 29 can be easily wound at a predetermined curvature, and the number of work steps required for the extra length processing of the optical cable 29 can be greatly reduced. Since it is not necessary to cover a protective cover or the like on the printed wiring board 27,
It is possible to easily perform a mechanism inspection for confirming a mounting state of a component mounted on the device.

Further, when the optical cable 29 held by the optical cable extra length processing device is detached from the optical cable extra length processing device, the optical cable holding member 23 is used with a finger.
The space 35 for attaching and detaching the optical cable 29 can be formed between the extra-length processing member 21 and the optical cable holding member 23 just by tilting the optical cable 29, so that the optical cable 29 can be removed without using a tool.

Therefore, the optical cable 29 can be removed smoothly, and the optical cable 29 can be prevented from being damaged. Further, since the protrusion preventing portion 23b is formed on the optical cable holding member 23, it is possible to prevent the wound optical cable 29 from coming off to the outside.

Since the optical cable holding member 23 is formed with the detachment preventing portion 23c, the wound optical cable 29
Can be prevented from coming off upward. Furthermore, since the locking portion 21g of the extra length processing member 21 is formed in an annular shape,
The optical cable holding member 23 locked to the locking portion 21g can be freely moved along the locking portion 21g, and the curvature of the extra length 29a of the wound optical cable 29 can be maintained in an optimal state.

Further, since the optical cable holding member 23 is detachably engaged with the engaging portion 21g of the excess length processing member 21, a new optical cable holding member 23i can be engaged after the optical cable 29 is wound. , Wound extra length part 2
The curvature of the extra-length portion 29d of the wound optical cable 29b can be maintained in an optimum state without affecting 9a.

Since the cut-out portion 23e is formed in the protrusion prevention portion 23b and the detachment prevention portion 23c of the optical cable holding portion 23, the wound optical cable 29 is taken out through the cut-out portion 23e, so that the optical cable 29 is moved to a predetermined position. Can be taken from Furthermore, since the through-hole 21e was formed in the winding part 21b of the extra length processing member 21,
The extra length processing member 21 can be easily fixed to the printed wiring board 27 by inserting the screw 25 into the through hole 21e.

In FIG. 2 described above, the hexagon nut 31 is used.
Has been described as an example in which the length of the extra length processing member 21 is made equal to the height of the extra length processing member 21 and the extra length processing member 21 is disposed in contact with the printed wiring board 27. For example, as shown in FIG. The length may be larger than the height of the extra length processing member 21, and a space 39 for mounting the component 37 may be formed between the printed wiring board 27 and the extra length processing member 21.

In the above-described embodiment, the winding portion 21b of the excess length processing member 21 is formed in a cylindrical shape, and the hexagon nut 3
Although the example in which the excess length processing member 21 is fixed to the printed wiring board 27 via 1 has been described, for example, the winding part 21b is formed in a cylindrical shape, and a female screw part is formed at the bottom of the winding part 21b. The extra length processing member 21 may be directly fixed to the printed wiring board 27 by the screw 33.

[0040]

As described above, in the optical cable extra length processing device of the first aspect, the locking portion is formed on the extra length processing member,
Since the optical cable holding member is rotatably locked to the locking portion, the optical cable holding member can be rotated to an optimum position when the optical cable is wound, held, and removed, and can be rotated on the printed wiring board. Can be easily and reliably performed.

Further, since the outer diameter of the winding portion is adjusted to a predetermined curvature at the time of winding the optical cable, the optical cable can be easily wound at a predetermined curvature, and the work required for processing the extra length of the optical cable. Man-hours can be greatly reduced. In the optical cable extra length processing device according to the second aspect, since the locking portion of the extra length processing member is formed in an annular shape, the optical cable holding member locked to the locking portion can be freely moved along the locking portion, and The curvature of the surplus length of the turned optical cable can be maintained in an optimum state.

According to a third aspect of the present invention, there is provided an optical cable surplus length processing apparatus.
Since the optical cable holding member is removably locked to the locking portion of the extra length processing member, after the optical cable is wound, a new optical cable holding member can be locked, and the optical cable holding member can be attached to another wound extra length portion. The curvature of the extra length of the wound optical cable can be maintained in an optimum state without any influence. In the optical cable extra length processing device of claim 4, the cut-out portion is formed in the protrusion prevention portion and the detachment prevention portion of the optical cable holding portion. Can be taken out.

According to a fifth aspect of the present invention, there is provided an optical cable surplus length processing apparatus.
Since the through-hole is formed in the winding portion of the extra-length processing member, the extra-length processing member can be easily fixed to the printed wiring board by inserting the fixing member into the through-hole.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an optical cable extra length processing device of the present invention.

FIG. 2 is a side view showing a state where the optical cable extra length processing device of FIG. 1 is fixed to a printed wiring board.

FIG. 3 is a cross-sectional view showing a state where an optical cable is wound around the optical cable extra length processing device of FIG. 1;

FIG. 4 is a cross-sectional view showing a state in which the optical cable wound around the optical cable extra length processing device of FIG. 1 is held.

FIG. 5 is a top view showing a state in which the optical cable wound around the optical cable extra length processing device of FIG. 1 is held.

FIG. 6 is an explanatory diagram showing a state in which the optical cable holding member is moving.

FIG. 7 is an explanatory diagram showing a state in which a new optical cable holding member is locked to a surplus processing member.

FIG. 8 is an explanatory diagram showing a state where an optical cable is taken out from a cutout portion of the optical cable holding member.

FIG. 9 is a cross-sectional view showing a state in which the excess length processing member is fixed above the printed wiring board at intervals.

FIG. 10 is an explanatory diagram showing a state in which an excess length of an optical cable is processed on a printed wiring board using a conventional optical cable excess length processing tool.

FIG. 11 is a perspective view showing a conventional optical cable extra length processing tool.

[Explanation of symbols]

 Reference Signs List 21 extra length processing member 21a flange portion 21b winding portion 21e through hole 21f outer peripheral portion 21g locking portion 23 optical cable holding member 23a attachment portion 23b protrusion prevention portion 23c detachment prevention portion 23e cutout portion 25 fixing member 27 printed wiring board 29 optical cable

Claims (5)

[Claims] A collar disposed in parallel with the printed wiring board; a winding part formed at a center of the flange toward the opposite side to the printed wiring board and wound with an optical cable; An extra length processing member having a locking portion formed on the outer peripheral portion of the flange portion toward the opposite side to the printed wiring board; a mounting portion rotatably locked to the locking portion; A protruding prevention portion connected to the portion and preventing the optical cable wound around the winding portion from protruding to the outside; and A plurality of optical cable holding members having a detachment preventing portion for preventing the turned optical cable from being detached from the flange portion; and a fixing member fixing the extra length processing member to the printed wiring board. An optical cable extra length processing device. 2. The optical cable extra length processing device according to claim 1, wherein the retaining portion of the extra length processing member is formed in an annular shape, and the optical cable holding member is movably engaged with the retaining portion. An optical cable extra length processing device, which is stopped. 3. The optical cable extra length processing device according to claim 1, wherein the optical cable holding member is detachably engaged with the engaging portion of the extra length processing member. Optical cable extra length processing equipment. 4. The optical cable extra length processing device according to claim 1, wherein the protrusion preventing portion and the disconnection preventing portion of the optical cable holding portion have cutouts for taking out the optical cable. An optical cable extra length processing device, wherein a portion is formed. 5. The optical cable extra length processing device according to claim 1, wherein a through hole through which the fixing member is inserted is formed in the winding portion of the extra length processing member. An optical cable extra length processing device, characterized in that: