JP2001148584A - Optical cable holding tool and optical cable holding structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely hold an optical cable on an optical cable holding tool and optical cable holding structure for holding the optical cable which is introduced onto a printed wiring board. SOLUTION: A fixing stand fixed on a printed wiring board and a holding cover fitted to the fixing stand, so that it is freely attached/detached are installed. The fixing stand has a pair of flat parts, which are installed opposite in a direction at right angles to the printed wiring board and have plural engagement parts along the right-angled direction and an installation part which is installed on the opposite side of the printed wiring board in the fixing stand and on which an optical cable is installed. The holding cover has restraint parts, which are installed in positions facing the respective flat parts and are restrained to one of the engagement parts and a cable pressing part, which is installed on the installation part and sandwiches the optical cable with the installation part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable holder for holding an optical cable introduced on a printed wiring board. Further, the present invention relates to an optical cable holding structure for holding an extra length of an optical cable on a printed wiring board.

[0002]

2. Description of the Related Art Recently, communication devices using optical cables have been miniaturized and are easily realized on printed wiring boards. Generally, a plurality of printed wiring boards having such a communication function are stored in an upright state in a storage rack. Therefore, it is necessary to prevent an optical cable introduced into this type of printed wiring board from coming into contact with another adjacent printed wiring board.

FIG. 29 shows a printed wiring board of this type into which an optical cable is introduced. A plurality of electronic components 2, an optical module 3, and a cable clamp 5 that holds an extra length 4 a of an optical cable 4 connected to the optical module 3 are attached to the printed wiring board 1. The cable clamps 5 are attached at four locations at intervals so that the extra length 4a of the optical cable 4 has a predetermined ring shape (for example, a diameter of 60 mm or more).

FIG. 30 shows the details of the optical cable clamp 5. The optical cable clamp 5 is formed of a nylon resin or the like, and includes a cable holding portion 5a for holding the optical cable 4, a shaft portion 5b rotatably supported by the through hole 1a of the printed wiring board 1, and a shaft portion 5b. A protrusion 5c is formed at the end of the through hole 1a, which is larger than the inner diameter of the through hole 1a and has elasticity in the width direction. Cable holding part 5a
Has an opening 5d through which the optical cable 4 is inserted and removed. In the opening 5d, a detachment preventing piece 5 for preventing the optical cable 4 held in the cable holding portion 5a from coming off.
e is formed inward.

FIG. 31 shows another printed wiring board into which an optical cable is introduced. The printed wiring board 6 is provided with a plurality of electronic components 2, the optical module 3, and a protective plate 7 that covers the extra length 4 a of the optical cable 4 connected to the optical module 3. The protection plate 7 is a screw 8
To the printed wiring board 6. The extra length portion 4a of the optical cable 4 is bound by a resin band 10 via a protective tube 9 in a state of being bundled in an annular shape. The protection plate 7 prevents the extra length portion 4a from floating above the printed wiring board 6.

FIG. 32 shows another printed wiring board into which an optical cable is introduced. The printed wiring board 11 includes a plurality of electronic components 2, an optical module 3, a cable clamp 5 for holding an extra length 4 a of an optical cable 4 connected to the optical module 3, and an extra length 4 a of the optical cable 4.
And a protection plate 7 that covers the cover. In addition, this type of printed wiring board 1, 6, 11 is housed in a storage rack (not shown).
It is stored in a state that a plurality of standing. For this reason, the mounting height of the components mounted on the printed wiring boards 1, 6, and 11 is limited to, for example, 9.4 mm or less. In addition, the protruding height of the terminals and the like protruding from the back surfaces of the printed wiring boards 1, 6, and 11 is limited to, for example, 2.5 mm or less.

[0007]

By the way, in the printed wiring board 1 shown in FIG.
a is only held by the cable clamp 5, and the optical cable 4 moves freely along the axial direction. For this reason, there is a problem that the optical cable 4 is loosened and protrudes from between the cable clamps 5 as shown by a broken line in FIG. In this case, when the printed wiring board 1 is stored in a storage rack (not shown), the optical cable 4 may be caught on the storage rack and may be damaged.

[0008] The cable clamp 5 is connected to the printed wiring board 1.
The printed wiring board 1 has an area on the printed wiring board 1 which is rubbed by the rotation of the cable clamp 5. In this area, it was not possible to mount components and wire conductive patterns. As a result, there is a problem that the pattern design can be restricted, and the mounting density of components is reduced.

In order to satisfy the mounting height (9.4 mm) and the protruding height (2.5 mm), the cable clamp 5 must have a small shape. Therefore, the width of the distal end portion 5c of the cable clamp 5 shown in FIG. 30 cannot be made too large with respect to the inner diameter of the through hole 1a, and there is a problem that the cable clamp 5 is easily detached from the printed wiring board 1. Was.

In the printed wiring board 6 shown in FIG. 31, after the extra length 4a of the optical cable 4 is wrapped with the resin band 10, the protective cover 7 is attached to the printed wiring board 6, so that the extra length of the optical cable 4 is provided. There is a problem that members required for processing increase and cost increases. Since the excess length processing of the optical cable 4 is performed using a plurality of members, a large number of man-hours are required for the excess length processing of the optical cable 4.

A part of the printed wiring board 6 is covered with a protective cover 7, and the protective cover 7 must be removed in order to check the mounting state of the component 2 mounted under the protective cover 7. There was a problem. Since the excess length processing of the optical cable 4 is performed by the resin band 10, the excess length shape of the optical cable 4 may be different depending on the operator. If the surplus shape has a diameter smaller than 60 mm, the quality of optical transmission will be degraded. Further, the binding force of the resin band 9 differs depending on the operator, and if the resin band 9 is excessively tightened, the optical cable may be damaged.

In the printed wiring board 11 shown in FIG. 32, the cable clamp 5 and the protective cover 7 described above are also provided.
Had similar problems. The present invention has been made to solve such a conventional problem, and holds an optical cable on a printed wiring board easily and reliably.
An object of the present invention is to provide an optical cable holder and an optical cable holding structure that can improve the mounting density of components mounted on a printed wiring board.

[0013]

An optical cable holder according to the present invention comprises a fixed base fixed on a printed wiring board, and a holding cover detachably attached to the fixed base. A pair of flat portions provided opposite to each other in a direction perpendicular to the printed wiring board and having a plurality of engaging portions along the direction perpendicular to the printed wiring board, and an optical cable provided on the opposite side of the fixed wiring board from the printed wiring board. And a holding portion for mounting the holding cover, wherein the holding cover is provided at a position facing each of the flat portions and is locked by one of the engaging portions. A cable holding section for holding the mounted optical cable with the mounting section.

According to a second aspect of the present invention, there is provided an optical cable holder comprising: a fixed base fixed on a printed wiring board; and a holding cover detachably attached to the fixed base. A pair of flat portions provided opposite to each other in a right angle direction and having a plurality of engaging portions along the right angle direction, and a mounting portion provided on the opposite side of the printed wiring board for mounting an optical cable. , The holding cover,
A pair of arms each having a locking portion provided at a position facing each of the flat portions with elasticity in the direction of the flat portion and locked by one of the engaging portions; A cable holding portion provided on the opposite side and holding the optical cable mounted on the mounting portion with the mounting portion.

According to a third aspect of the present invention, there is provided an optical cable holder.
The optical cable holder according to claim 1, wherein each of the engagement portions of the flat portion is formed by a groove parallel to the printed wiring board, and the locking portion of the holding cover is formed by a projection inserted into the groove. It is characterized by having. The optical cable holding device according to claim 4 is the optical cable holding device according to claim 2 or 3, wherein the flat portion is provided outside the fixing base, and the locking portion of the holding cover is
It is provided inside the holding cover.

According to a fifth aspect of the present invention, there is provided an optical cable holder.
Alternatively, in the optical cable holding device according to claim 3, the flat portion is provided inside the fixed base, and the mounting portion of the fixed base is provided with a through hole through which the arm of the holding cover is inserted. The holding portion of the holding cover is provided outside the holding cover. The optical cable holder of claim 6 is the second or fifth aspect of the present invention.
The optical cable holder according to any one of claims 1 to 3, wherein the fixing base is provided opposite to each other in a direction perpendicular to the printed wiring board, and has a plurality of engaging portions along the perpendicular direction. (2) The flat part is provided in a direction perpendicular to the flat part.

According to a seventh aspect of the present invention, there is provided the optical cable holder according to the second aspect.
7. The optical cable holder according to claim 6, wherein a plurality of concave grooves corresponding to the outer shape of the optical cable are provided inside the holding cover. The optical cable holder according to claim 8 is the optical cable holder according to any one of claims 2 to 7, wherein:
A conductive terminal to be soldered to a through hole or a land formed in the printed wiring board is provided.

The optical cable holder of the ninth aspect is the first aspect of the invention.
In the optical cable holding device described in the above, the fixing base includes a pair of mutually opposing plate pieces protruding on the opposite side of the printed wiring board, and the flat portions are provided on each of the plate pieces, respectively. The mounting portion is provided between the two plate portions, the holding cover is formed in a plate shape having a through hole through which the plate portion is inserted, and the locking portion is provided in the through hole. It is characterized by having.

According to a tenth aspect of the present invention, in the optical cable holder of the ninth aspect, each of the engaging portions of the flat portion and the locking portion of the holding cover are formed by projections facing each other. The at least one protrusion has elasticity. The optical cable holder according to claim 11 is the optical cable holder according to claim 9 or 10, wherein a plurality of grooves corresponding to the outer shape of the optical cable are formed on a surface of the holding cover facing the printed wiring board. It is characterized by being provided.

According to a twelfth aspect of the present invention, in the optical cable holder according to any one of the ninth to eleventh aspects, the fixed base is formed on the printed wiring board on the side of the printed wiring board. And a conductive terminal to be soldered to the through hole or the land. The optical cable holder of claim 13 is:
The optical cable holder according to any one of claims 9 to 12, wherein the holding cover has an extra length along an extra length of the optical cable mounted on the mounting portion of the fixing table. It is characterized in that a cable guide for maintaining a long shape is provided.

According to a fourteenth aspect of the present invention, there is provided an optical cable holding structure, wherein the plurality of fixing bases of the optical cable holding fixture according to the second aspect are fixed on a printed wiring board in accordance with the extra length of the optical cable, and the mounting base of the fixing base is provided. The holding cover in the optical cable holder according to claim 2, wherein the extra length portion of the optical cable is placed, and the extra length portion is covered with a protective sheet having an opening at a position corresponding to the engagement portion of each of the fixing bases. The arm portion is inserted into the opening portion of the protection sheet to be engaged with the engaging portion of the fixing base, and the entire extra length portion is held on the printed wiring board.

According to a fifteenth aspect of the present invention, in the optical cable holding device according to the ninth aspect, the plurality of fixing bases are fixed on a printed wiring board in accordance with the extra length of the optical cable, and are mounted on the mounting portion of the fixing base. The holding cover of the optical cable holder according to claim 9, wherein the extra length portion of the optical cable is placed, and the extra length portion is covered with a protective sheet having an opening through which the plate piece portion of each of the fixing bases is inserted. Through holes
The protection sheet is engaged with an engagement portion of the plate piece projecting from the opening, and the entire excess length is held on the printed wiring board.

(Operation) In the optical cable holder according to the first aspect, first, the optical cable is mounted on the mounting portion of the fixed base fixed to the printed wiring board. The optical cable to be placed is
One or more may be used. Next, the holding cover is attached to the fixed base from above the printed wiring board. At this time, the locking portions of the holding cover are sequentially locked to the adjacent engaging portions. The movement of the holding cover is performed until the optical cable is clamped between the placing section and the cable holding section in a pressed state. The pressed state prevents the optical cable from moving in the axial direction.

Therefore, the optical cable can be held with one touch only by moving the holding cover toward the fixed base. As a result, the number of steps for holding the optical cable on the printed wiring board is reduced. Since the optical cable is sandwiched between the mounting portion and the cable pressing portion in a pressed state, the optical cable is prevented from being loosened in the axial direction. Since the holding of the optical cable is performed by pressing the cable pressing portion of the holding cover toward the mounting table, damage to the optical cable is prevented.

Since the plurality of engaging portions are formed in the direction perpendicular to the printed wiring board, the distance between the cable holding portion and the mounting portion can be finely adjusted. It is held optimally according to the number. After holding the optical cable, the holding state can be easily checked visually or the like.

Since the fixed base is fixed to the printed wiring board and the printed wiring board is not rubbed, wiring of the conductive pattern can be performed around and below the fixed base. As a result, the degree of freedom in pattern design increases, and the mounting density of components improves. In the optical cable holder according to the second aspect, first, the optical cable is mounted on the mounting portion of the fixed base fixed to the printed wiring board. The optical cable to be placed is
One or more may be used. Next, each arm of the holding cover is moved along each flat portion of the fixed base. Since the arm portion has elasticity in the direction of the flat portion, the locking portion of the arm portion is sequentially locked to the adjacent engaging portion. The movement of the holding cover is performed until the optical cable is clamped between the placing section and the cable holding section in a pressed state. The pressed state prevents the optical cable from moving in the axial direction.

Therefore, the optical cable can be held with one touch only by moving the holding cover toward the fixed base. As a result, the number of steps for holding the optical cable on the printed wiring board is reduced. Since the optical cable is sandwiched between the mounting portion and the pressing portion in a pressed state, the optical cable is prevented from being loosened in the axial direction. Since the holding of the optical cable is performed by pressing the cable pressing portion of the holding cover toward the mounting table, damage to the optical cable is prevented.

Since a plurality of engaging portions are formed in a direction perpendicular to the printed wiring board, the distance between the cable holding portion and the mounting portion can be finely adjusted. It is held optimally according to the number. After holding the optical cable, the holding state can be easily checked visually or the like. Since the fixed base is fixed to the printed wiring board and the printed wiring board does not rub, the conductive pattern can be wired around and below the fixed base. As a result, the degree of freedom in pattern design increases, and the mounting density of components improves.

In the optical cable holder of the third aspect, the engaging portion of the fixing base is formed by a groove, and the engaging portion of the holding cover is formed by a projection inserted into the groove. Is securely locked.

In the optical cable holder according to the fourth aspect, since the flat portion is provided outside the fixing base and the locking portion is provided inside the holding cover, the fixing base and the holding cover can be simplified. Becomes possible. Therefore, the mounting area of the optical cable holder on the printed wiring board is minimized. In the optical cable holder according to the fifth aspect, the flat portion is provided inside the fixed base, and the locking portion is provided outside the holding cover. The holding cover is attached to the fixed base by inserting the arm into the through hole of the mounting base. Therefore, the arm portion of the holding cover is prevented from coming off the fixed base due to the reaction force of the optical cable held between the holding section and the mounting table in a pressed state.

In the optical cable holder according to the sixth aspect, the second flat portion is provided in a direction perpendicular to the flat portion, and the holding cover can be attached to both the flat portion and the second flat portion. For this reason, the mounting table can be attached to the printed wiring board in four different directions every 90 degrees. As a result, the layout design of the printed wiring board is facilitated, and the mounting density of the components of the printed wiring board can be improved.

In the optical cable holder of the present invention, since the concave groove is provided inside the holding cover, the optical cable is guided by the concave groove and aligned when the optical cable is clamped between the holding portion and the mounting portion. It is held in the state where it was done. As a result, the work of holding the optical cable in the optical cable holder can be easily performed. In the optical cable holder according to the eighth aspect, the conductive terminal is soldered to a through hole or a land formed in the printed wiring board, and the fixing base is fixed to the printed wiring board. Since the fixing base can be soldered to the printed wiring board together with other mounted components, the number of steps for assembling the printed wiring board is reduced.

Since the fixing base can be fixed to the printed wiring board without using screws or the like, the protruding height from the printed wiring board is minimized. In the optical cable holder according to the ninth aspect, the optical cable can be easily and reliably mounted on the mounting portion simply by dropping the optical cable between the two plate pieces. Since the plate piece protrudes toward the opposite side of the printed wiring board, the optical cable mounted on the mounting portion is prevented from coming off the mounting portion. Thereafter, the holding cover is attached to the fixed base by inserting the through hole into the plate piece of the fixed base. And the locking part provided in the through-hole is locked by the engaging part provided in the plate piece. The holding cover is formed in a plate shape, and thus is easily formed.

In the optical cable holder of the tenth aspect, the engaging portion of the holding cover and the engaging portion of the fixing base are formed by projections facing each other, and one of them has elasticity. It is easily inserted into the plate piece of the fixed base. After the insertion, the locking portion is securely locked to the engaging portion. According to the optical cable holding device of the present invention, since the holding cover is provided with the concave groove, when the optical cable is sandwiched between the holding portion and the mounting portion, the optical cable is held in an aligned state guided by the concave groove. You. As a result, the work of holding the optical cable in the optical cable holder can be easily performed.

In the optical cable holder of the twelfth aspect, the conductive terminal is soldered to a through hole or a land formed in the printed wiring board, and the fixing base is fixed to the printed wiring board. Since the fixing base can be soldered to the printed wiring board together with other mounted components, the number of steps for assembling the printed wiring board is reduced. Since the fixing base can be fixed to the printed wiring board without using screws or the like, the protruding height from the printed wiring board is minimized.

In the optical cable holder according to the thirteenth aspect, since the holding cover is provided with the cable guide portion along the extra length portion of the optical cable, the extra length portion of the optical cable mounted on the mounting portion of the fixed base is a predetermined length. It is securely held in shape. In the optical cable holding structure according to the fourteenth aspect, first, the plurality of fixing bases according to the second aspect are fixed on the printed wiring board according to the extra length of the optical cable. Next, the extra length of the optical cable is mounted on the mounting portion of the fixed base. Next, a protection sheet is disposed over the extra length of the optical cable. Then, the arm portion of the holding cover according to the second aspect is inserted into the opening of the protective sheet and is locked to the engaging portion of the fixing base. For this reason, the entire surplus portion is held on the printed wiring board by the protection sheet at the same time when the holding cover is attached to the fixed base. As a result, the extra length is prevented from floating from the printed wiring board.

In the optical cable holding structure according to the fifteenth aspect, first, the plurality of fixing bases according to the ninth aspect are fixed on the printed wiring board according to the extra length of the optical cable. next,
The extra length of the optical cable is mounted on the mounting portion of the fixed base.
Next, the protection sheet is disposed so as to cover the extra length of the optical cable by inserting the plate portion of the fixing base into the opening. The plate portion of the fixing base is inserted into the through hole of the holding cover according to the ninth aspect, and the engaging portion is formed on the engaging portion. For this reason, the entire surplus portion is held on the printed wiring board by the protection sheet at the same time when the holding cover is attached to the fixed base. As a result, the extra length is prevented from floating from the printed wiring board.

[0038]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the optical cable holder of the present invention. This embodiment corresponds to claims 1 to 4 and claim 8. The optical cable holder of this embodiment includes a fixing base 22 that is soldered to the printed wiring board 20 and a holding cover 24 that is detachably attached to the fixing base 22.

The fixing base 22 is formed by bending a plate material obtained by plating nickel on iron. On the fixed base 22,
A flat portion 26 having a planar shape extending in the right-angle direction R of the printed wiring board side 20 and facing each other, and an optical cable 28 formed by connecting the flat portions 26 to the flat printed portion 20 on the side opposite to the printed wiring board 20. And a flat bar-shaped terminal 3 formed on the printed wiring board 20 side of each flat portion 26.
2 (corresponding to the conductive terminal). Flat part 2
6 and the mounting part 30 are orthogonal to each other. Placement unit 30
Has a plane shape parallel to the printed wiring board 20.
The distance between the flat portions 26 is such that the terminal 32 is
So that it can be inserted into the through hole 20a formed in
The interval is the same as the interval between the through holes 20a.

In the flat portion 26, a plurality of elongated grooves 26a (corresponding to the engaging portions) parallel to the printed wiring board 20 are formed (seven in FIG. 1) at intervals in the perpendicular direction R. Each groove 26a is formed by stamping the flat portion 26. The holding cover 24 is formed by molding a nylon resin or the like. The holding cover 24 is formed by connecting two arms 34 facing each other extending toward the printed wiring board 20 and connecting each arm 34 to the side of the arm 34 opposite to the printed wiring board 20. And a holding portion 36. The arm part 34 and the holding part 36 are substantially orthogonal. The inside of the holding portion 36 has a flat shape parallel to the printed wiring board 20.

Each arm 34 is formed so as to face each flat portion 26 when attached to the fixed base 22.
At the distal end of the arm portion 34, a locking claw 34a (corresponding to a locking portion and a protrusion) having a substantially triangular cross section facing each other inward.
Are formed. FIG. 2 shows the detailed shapes of the fixing base 22 and the holding cover 24. The holding cover 24 is formed in a shape in which the side of the locking claw 34a is slightly closer to the inside. An inclined portion 34b that is inclined inward toward the holding portion 36 is formed on the fixing base 22 side of the locking claw 34a. The widest interval W1 of the intervals between the two inclined portions 34b is:
The width W2 is larger than the width W2 outside the fixed base 22. The interval W3 inside the holding cover 24 is substantially equal to three times the outer diameter of the optical cable 28.

In the above-described optical cable holder, the optical cable 28 introduced onto the printed wiring board 20 is held as described below. Here, as shown in FIG. 3, the fixing base 22 is fixed on the printed wiring board 20 by soldering the terminals 32 to the through holes 20a in advance. That is, the fixing base 22 can be soldered to the printed wiring board 20 together with other mounting components, and the number of mounting steps for the fixing base 22 alone is unnecessary. Projection height L1 of terminal 32 from the back surface of printed wiring board 20
Is 2.5m, the same as other mounted parts (not shown)
m can be easily satisfied. Since the fixing base 22 is soldered in the same manner as other mounting components, wiring of a conductive pattern can be performed around and below the fixing base 22 on the printed wiring board 20.

First, the optical cable 28 introduced onto the printed wiring board 20 is subjected to extra-length processing, and the extra-length portion 28 a is placed on the placing portion 30 of the fixed base 22. In this case, it is not necessary to arrange all the optical cables 28 in an orderly manner and mount them on the mounting section 30. In this embodiment, five optical cables 28
An example in which is held by the optical cable holder will be described. Next, as shown in FIG. 4, the retaining claw 34 a is moved toward the mounting portion 30 while the holding cover 24 is being picked with a finger or the like (not shown). At this time, some optical cables 28 enter the inside of the holding cover 24 from between the locking claws 34a.

As shown in FIG. 5, after the inclined portion 34b of the locking claw 34a contacts the end of the mounting portion 30, the holding cover 2
By pressing the printed circuit board 4 toward the printed wiring board 20, the inclined portion 34b is pushed outward at the end of the mounting portion 30, and the arm portion 34 of the holding cover 24 is deformed outward. At this time, since the holding cover 24 is pressed toward the printed wiring board 20, the arm 34 moves toward the printed wiring board 20 along the flat portion 26.

Then, as shown in FIG. 6, the restoring force of the arm 34 causes the locking claw 34a to move to the uppermost groove 2 of the flat portion 26.
6a. In this state, the holding cover 24
L2 from the holding portion 36 to the printed wiring board 20
Is 9.2 mm. That is, this optical cable holder satisfies the standard of mounting height of 9.4 mm. Further, when the holding cover 24 is pressed toward the printed wiring board 20, the locking claws 34a are sequentially locked in the lower grooves 26a as shown in FIG. The optical cables 28 held inside the holding cover 24 are gradually gathered while being sandwiched between the placing section 30 and the holding section 36.

Then, as shown in FIG.
Is an optimal groove 2 for holding five optical cables 28.
6a. The optical cable 28 is sandwiched between the mounting portion 30 and the holding portion 36 in a pressed state, and the optical cable 2
8 is completed. In this state, the optical cable 28 does not shift in the axial direction, and a predetermined surplus processing shape is maintained.

The number of the held optical cables 28 is three.
In the case of eight or eight hooks, the hooks 34a are hooked into the optimal grooves 26a for holding the respective optical cables 28. Also in this case, the optical cable 28 includes the mounting portion 30 and the holding portion 3.
6 is securely held. The holding state of the optical cable 28 can be easily released by inserting a tool such as tweezers between the arm part 34 of the holding cover 24 and the flat part 26 of the fixing base 22.

In the optical cable holder configured as described above, a plurality of grooves 26 a are formed in the flat portion 26 of the fixing base 22 along the right-angle direction R of the printed wiring board 20, and the arm portion 34 of the holding cover 24 is formed in the arm portion 34 of the holding cover 24. Since the locking claw 34a that locks into the groove 26a is formed, the extra length 28a of the optical cable 28 can be simply and reliably held simply by moving the holding cover 24 toward the fixing base 22. As a result, the number of steps for holding the optical cable 28 on the printed wiring board 20 can be reduced.

Since the optical cable 28 is sandwiched between the mounting portion 30 and the holding portion 36 in a pressed state, the optical cable 28
Can be prevented from moving in the axial direction and becoming loose. Since the holding of the optical cable 28 was performed by pressing the flat holding portion 36 toward the flat mounting table 30,
The optical cable 28 can be prevented from being damaged by the sandwiching.

Since the plurality of grooves 26a are formed in the flat portions 26 in the direction R perpendicular to the printed wiring board 20, the holding portions 36
The distance between the optical cable 28 and the mounting portion 30 can be finely adjusted, and the optical cable 28 can be optimally held in accordance with the number thereof. After holding the optical cable 28, the holding state can be easily confirmed by visual inspection or the like.

The groove 2 extends through each flat portion 26 of the fixing base 22.
Since the 6a is formed, the locking claw 34 of the holding cover 24 can be securely locked in the groove 26a. The flat portion 26 is formed outside the fixing base 22, and the locking claw 34 a is attached to the holding cover 2.
4, the fixing base 22 and the holding cover 24 can be formed at low cost. The fixing base 22 and the holding cover 24 can be formed in a simple shape. Therefore, the mounting area of the optical cable holder on the printed wiring board 28 can be minimized.

The holding state of the optical cable 28 can be easily released by inserting a tool such as tweezers between the arm part 34 of the holding cover 24 and the flat part 26 of the fixing base 22. Since the terminal 32 is soldered to the through hole 20a and the fixing base 22 is fixed to the printed wiring board 20, the fixing base 22 can be soldered together with other mounted components, and the man-hour required for mounting the components of the printed wiring board 20 is increased. Can be reduced.

Since the fixing base 22 is soldered to the printed wiring board 20, the fixing base 22 on the printed wiring board 20 is
Around and under the conductive pattern. As a result, the degree of freedom in pattern design is increased, and the mounting density of components can be improved. FIG. 9 shows a second embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 5. The same members and structures as in the first embodiment are denoted by the same reference numerals.

In this embodiment, the fixed base 40 is formed wider than in the first embodiment, and the flat portion 26
It is formed inside the fixed base 40. On the mounting portion 30 of the fixing base 40, elongated through holes 30a penetrating in the right-angle direction R are formed at both ends on the flat portion 26 side. Through hole 30a
Is formed in such a size that the arm portion 44 of the holding cover 42 can be freely inserted and removed. The shapes of the flat portion 26, the groove 26a, and the terminal 32 are the same as in the first embodiment.

In this embodiment, the locking claw 44a
Is formed outside the arm 44 of the holding cover 42. The size of the arm portion 44 and the holding portion 36 is substantially the same as in the first embodiment. FIG. 10 shows the detailed shapes of the fixing base 40 and the holding cover 42. Holding cover 4
0 is formed in a shape in which the distal end side of the arm portion 44 is separated outward. On the fixed base 40 side of the locking claw 44a, an inclined portion 44b that is inclined outward toward the holding portion 36 is formed. The narrowest interval W4 among the intervals between the two inclined portions 44b.
Is larger than the width W5 outside the through hole 30a of the fixing base 40. For this reason, the holding cover 42 is
, The arm portion 44 is deformed inward, and the locking claw 44a is easily inserted into the through hole 30a.

In this embodiment, the holding cover 42 inserts the arm 44 into the through hole 30 a of the
The optical cable 4a is locked in the groove 26a from the inside, and the optical cable 28 is sandwiched between the holding portion 36 and the mounting table 30. In this embodiment, the same effect as in the first embodiment can be obtained. Further, in this embodiment, the flat portion 2
6 is formed inside the fixed base 40 and the locking claw 34a is formed outside the holding cover 42, so that the holding cover 36 is formed by the reaction force of the optical cable 28 held between the holding part 36 and the mounting base 30 in a pressed state. It is possible to prevent the arm 44 of 42 from coming off the fixed base 40.

FIG. 11 shows a third embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 6
It corresponds to. In addition, the same members as the first embodiment,
For structures, the same reference numerals are used. In this embodiment, a fixing base 46 is different from the first embodiment. The same holding cover as that of the first embodiment is used. A second flat portion 48 extending in the direction R at right angles to the printed wiring board 20 and facing each other is formed on the fixing base 46 adjacent to the flat portion 26. In the second flat portion 48, a plurality of elongated grooves 48a (corresponding to the engagement portions) are provided at intervals in the perpendicular direction R (6 in FIG. 11).
Location) is formed. Each groove 48a is formed by punching out the flat portion 48. The size and formation interval of each groove 48a are the same as those of the groove 26a of the flat portion 26. At the lower end of the second flat portion 48, a notch 48b having substantially the same size as the groove 48a is formed. This notch 48b is
A is used together with a to lock the locking claw 34a of the holding cover 24. That is, the notch 48b is
6 corresponds to the lowermost groove 26a.

FIG. 12 shows a fixing board 4 attached to a printed wiring board 20.
6 shows a state in which the number 6 is attached. The fixing base 46 is attached to the printed wiring board 20 by inserting the terminals 32 into the through holes 20a. The orientation of the adjacent through-holes 20a is determined based on the result of optimally laying out other mounting components (not shown) and conductive patterns.

In the optical cable holder of this embodiment, the flat portion 26 and the second flat portion 48 are formed on the fixing base 46 at right angles to each other.
Regardless of the direction of “a”, the holding cover 24 can always be attached in a direction in which the optical cable 28 can be held.
FIG. 13 shows a fourth embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 7. The same members and structures as in the first embodiment are denoted by the same reference numerals.

In this embodiment, the holding cover 50 is the first
Is different from the embodiment of FIG. Fixed base 22 (not shown)
Are the same as in the first embodiment. The optical cable 28 is provided inside the holding portion 36 of the holding cover 50.
The concave groove 50a corresponding to the outer diameter shape is formed at three places in the width direction. In the optical cable holding device of this embodiment, the concave groove 50a is formed inside the holding cover 50. It can be held in an aligned state by being guided by 50a. As a result, the work of holding the optical cable 28 on the optical cable holder can be easily performed.

FIG. 14 shows a fifth embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 8
It corresponds to. In addition, the same members as the first embodiment,
For structures, the same reference numerals are used. In this embodiment, the terminals 54 of the fixed base 52 are connected to the printed wiring board 2.
It is formed in a rectangular shape corresponding to the land 20b formed at zero. The terminal 54 is formed by bending the tip of the flat portion 26 outward. That is, in this embodiment, the fixing base 52 is fixed on the printed wiring board 20 together with other surface mount components. Holding cover 24 (not shown)
Are the same as in the first embodiment.

In the optical cable holder of this embodiment, the same effects as in the first embodiment can be obtained. FIG. 15 shows a sixth embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 1, claim 9, claim 10, and claim 12. In addition,
Regarding the same members and structures as in the first embodiment,
The same code is used.

The optical cable holder of this embodiment includes a fixed base 60 to be soldered to the printed wiring board 20 and a holding cover 62 detachably attached to the fixed base 60. The fixed base 60 is connected to the printed wiring board side 20.
And a flat plate piece portion 66 (flat portion) connected to opposing sides of the mounting portion 64 and extending in the right-angle direction R toward the non-printed wiring board side 20 side. And a terminal piece 68 connected to the other side of the mounting portion 64 and extending in the right angle direction R toward the printed wiring board 20 side. At the end of each terminal piece 68, a plate-shaped terminal 68a (corresponding to a conductive terminal) is formed at two places with an interval. The fixing base 60 is formed by bending a cross-shaped plate material obtained by plating nickel on iron. A space for mounting and holding the optical cable 28 is formed by the mounting portion 64 and the two plate pieces 66.

In each of the plate pieces 66, elongated engaging portions 66a parallel to the printed wiring board 20 are formed at a plurality of locations (seven locations in FIG. 15) at intervals in the right-angle direction R. . Each engagement portion 66a is formed by cutting and raising the plate piece 66 from the inside to the outside. The holding cover 62 is formed in a thick plate shape by molding a nylon resin or the like. In the holding cover 62, elongated through holes 70 penetrating in the thickness direction are formed at two locations facing each other. Each through hole 70 is provided in the plate piece 66 of the fixing base 60.
It is formed in a position and a size that can be inserted through. Locking portions 70a protruding from each other are formed along the longitudinal direction on the side wall of each through hole 70 facing the engaging portion 66a. The locking portion 70a is formed to have a size that engages with the engaging portion 66a when the through hole 70 is inserted through the plate piece portion 64. A circular arc portion 70b bulging toward the locking portion 70a is formed on a side wall of the through hole 70 facing the locking portion 70a. On the surface of the holding cover 62 on the printed wiring board 20 side, a holding portion 72 for holding the optical cable 28 is provided.
It is formed so as to face the mounting portion 66.

FIG. 16 shows the fixing table 60 and the holding cover 6.
2 shows a detailed shape. The distance W6 between the locking portions 70a in the holding cover 62 is substantially the same as the distance between the outer surfaces of the two plate pieces 66 in the fixed base 60. The distance W7 between the distal ends of the two arc portions 70b in the holding cover 62 is substantially the same as the distance between the inner surfaces of the two plate pieces 66 in the fixed base 60. On the outer surface of the holding cover 62 facing the locking portion 70a, a concave groove 62a is formed along the locking portion 70a.
Are formed. The locking portion 70a has appropriate elasticity in the horizontal direction in the drawing due to the concave groove 62a.

In the above-described optical cable holder, the optical cable 28 introduced onto the printed wiring board 20 is held as described below. Here, as shown in FIG.
The fixing base 60 is fixed on the printed wiring board 20 by soldering the terminals 68a to the through holes 20a in advance. That is, since the fixing base 22 is soldered in the same manner as other mounted components, wiring of a conductive pattern can be performed around and below the fixing base 22 on the printed wiring board 20.

First, the optical cable 28 introduced on the printed wiring board 20 is subjected to extra length processing, and the extra length portion 28a
Is mounted on the mounting portion 64 of the fixed base 60. At this time, since the plate piece 66 protrudes upward, the extra length 28a
Is easily held by simply dropping it between the plate pieces 66. Further, detachment of the optical cable 28 placed on the placement portion 64 to the outside or the inside is prevented by the plate piece portion 66.

Next, as shown in FIG.
2 is pinched with a finger or the like (not shown), and the through hole 70 is
6 is inserted. The holding cover 62 is provided for the printed wiring board 2.
0, and the locking portion 70a is locked between two adjacent engaging portions 66a. Further, as shown in FIG. 19, when the holding cover 62 is pressed toward the printed wiring board 20, the optical cable 28 is pressed and held on the mounting portion 64 side. The locking portion 70a is located at a position where the extra length 28a of the optical cable 28 can be optimally held.
Is engaged.

In the optical cable holder of this embodiment, the same effects as in the first embodiment can be obtained. Furthermore, in this embodiment, a plate piece 66 extending toward the side opposite to the printed wiring board 20 is formed on the opposite side of the mounting portion 64. Therefore, the extra-length portion 28a can be easily mounted on the mounting portion 64 simply by dropping the optical cable 28 between the two plate pieces 66. Further, the optical cable 28 mounted on the mounting portion 64 can be prevented from coming off the mounting portion 64.

A through-hole 70 was formed in the holding cover 62, and the through-hole 70 was inserted into the plate piece 66 and attached to the fixed base 60. For this reason, the through hole 70 is
, The optical cable 28 can be easily held. Since the holding cover 62 has a plate shape, it can be easily formed.

The retaining portion 70a of the holding cover 70 has elasticity. For this reason, the through hole 70 can be easily inserted into the plate piece portion 66, and the locking portion 70a can be easily and reliably engaged with the engaging portion 66a. FIG. 20 shows a seventh embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 1
Corresponds to 1.

In this embodiment, the outer shape of the holding cover 74 is different from that of the sixth embodiment. The same fixed base 60 (not shown) as that of the sixth embodiment is used. In the holding cover 74, a through hole 76, a locking portion 76a, an arc portion 76b, and a concave groove 74a having the same shape as in the first embodiment are formed. The holding portion 78 of the holding cover 74 has a groove 7 corresponding to the outer diameter of the optical cable 28.
8a are formed at three places along the extending direction of the optical cable 28.

In the optical cable holder of this embodiment, the same effects as those of the fourth embodiment can be obtained. FIG. 21 shows an eighth embodiment of the optical cable holder of the present invention. This embodiment corresponds to claim 13. The same members and structures as in the first embodiment are denoted by the same reference numerals.

In this embodiment, the holding cover 80 is the sixth cover.
Is different from the embodiment of FIG. Fixed base 60 (not shown)
Are the same as in the sixth embodiment. The holding cover 80 has a through hole 82 having the same shape as that of the first embodiment, a locking portion 82a, an arc portion 82b, and a concave groove 80a.
Are formed. The holding cover 80 includes the optical cable 2
8 corresponding to an arc-shaped cable guide portion 84 corresponding to the extra length shape
Are integrally formed so as to protrude from both side surfaces where the arc portion 82b is not formed. A cable holding portion 84 a having a U-shaped cross section is formed on the distal end side of the cable guide portion 84 and opens toward the printed wiring board 20.

In the optical cable holder of this embodiment, the same effects as in the sixth embodiment can be obtained. Furthermore, in this embodiment, since the cable guide portion 84 is formed integrally with the holding cover 80 along the extra length of the optical cable 28, the optical cable 28 placed on the fixed base 60 (not shown) can be securely extended to a predetermined extra length. Can be kept in shape.

FIG. 22 shows a first embodiment of the optical cable holding structure of the present invention. This embodiment corresponds to claim 14. The same members and structures as in the first embodiment are denoted by the same reference numerals. In this embodiment, four fixing bases 22 are fixed on the printed wiring board 20 according to the extra length of the optical cable 28. The extra length 28a of the optical cable 28 is
Are placed on the placing section 30 of the first embodiment. The rectangular protective sheet 86 larger than the extra length portion 28a
It is placed over the top. The protection sheet 86 is formed of, for example, polyacetal or the like. The protection sheet 86 has an opening 86 a through which the locking claw 34 a of the holding cover 24 is inserted, at a position corresponding to each fixing base 22. Then, the arm 34 of the holding cover 24 is attached to the fixed base 22 through the opening 86 a of the protection sheet 86.

In this embodiment, at the same time when the holding cover 24 is attached to the fixed base 22, the entire extra length 28 a is held on the printed wiring board 20 by the protection sheet 86.
As a result, it is possible to prevent the extra length portion 28a from floating from the printed wiring board 20. FIG. 23 shows a second embodiment of the optical cable holding structure of the present invention. This embodiment corresponds to claim 15. The same members and structures as those of the sixth embodiment of the optical cable holder are denoted by the same reference numerals.

In this embodiment, the four fixed bases 60 are
Printed wiring board 2 according to the extra length of optical cable 28
It is fixed on 0. Extra length 28 of optical cable 28
a is mounted on the mounting portion 64 of the fixed base 60. A rectangular protective sheet 88 larger than the extra length 28a
Is disposed over the extra length portion 28a. Here, the protection sheet 88 is formed with an opening 88a through which the plate piece 66 of each fixing base 60 is inserted.
Are arranged on the fixed base 60 by passing the plate piece 66 through the base. The protection sheet 88 is formed of, for example, polyacetal or the like. Then, as in the sixth embodiment of the optical cable holder, the through hole 70 of the holding cover 62 is inserted through the plate piece 66, and the optical cable 28 is
It is held on zero. At this time, the fixing base 6 of the holding cover 62 is
At the same time as mounting to zero, the entire surplus length portion 28 a is held on the printed wiring board 20 by the protection sheet 88.
As a result, it is possible to prevent the extra length portion 28a from floating from the printed wiring board 20.

In the first embodiment of the optical cable holder described above, an example has been described in which the fixing base 22 is formed by bending a plate material obtained by plating nickel on iron. However, the present invention is not limited to such an embodiment.
For example, it may be formed by bending a plate material obtained by solder plating iron. In the first embodiment of the optical cable holder described above, the example in which the groove 26a is formed by punching the flat portion 26 has been described. However, the present invention is not limited to such an embodiment. For example, the flat portion 2
A groove that does not penetrate inside may be formed by cutting the surface of No. 6.

In the first embodiment of the optical cable holder described above, as shown in FIG. 2, the width W2 of the fixed base 22 and the width W3 inside the holding cover 24 are reduced by three optical cables 2
8 has been described as an example of a size that can be arranged in parallel. However, the present invention is not limited to such an embodiment. The width W2 of the fixed base 22 and the width W3 of the inside of the holding cover 24 may be determined according to the number of optical cables 28 to be bundled during the extra length processing.

In the above-described first embodiment of the optical cable holder, an example in which seven grooves 26a are formed in each flat portion 26 has been described. However, the present invention is not limited to such an embodiment. The number of the grooves 26a may be determined in consideration of the outer diameter of the optical cable 28, the number of optical cables 28 to be held, and the like. Generally, the greater the number of grooves 26a, the more the optical cable 28
Can be optimally held by the mounting portion 30 and the pressing portion 36. On the other hand, the locking claw 34a is easily released.

In the first embodiment of the optical cable holder described above, an example was described in which the optical cable holder was used to hold the extra length 28a of the optical cable 28 introduced into the printed wiring board 20. However, the present invention is not limited to such an embodiment. For example, a plurality of optical cables 28 introduced into the printed wiring board 20
May simply be used to hold

In the fourth embodiment of the optical cable holder described above, as shown in FIG. 13, an example in which three concave grooves 50a are formed in the width direction inside the holding portion 36 of the holding cover 50 has been described. . However, the present invention is not limited to such an embodiment. For example, as shown in FIG. 24, a groove 50b may be further formed below the groove 50a.

The shapes of the locking claws 34a of the holding cover 24 may be as shown in FIGS. 25 (a) to 25 (e).
FIG. 25 (a) shows a shape in which the ends of the locking claws are made gentle, so that even if the optical cable abuts, the damage is prevented. FIG. 25 (b) shows a state in which the tips of the locking claws face upward, and the locking claws can be reliably locked in the grooves of the flat portion.

FIG. 25 (c) shows a projection formed on the tip of the locking claw so as to face upward, so that the locking claw can be reliably locked in the groove of the flat portion. FIG. 25 (d) shows a locking claw formed in an arcuate cross section, and can be locked in a flat portion groove with a small pressing force. FIG. 25 (e) shows a plurality of locking claws having a circular cross section formed at intervals, and can be reliably locked in the grooves of the plurality of flat portions. When a plurality of locking claws are formed, it is possible to form only one flat portion groove.

In the sixth embodiment of the optical cable holder described above, the example in which the engaging portion 66a of the fixing base 60 is formed by cutting and raising the plate piece portion 66 has been described. However, the present invention is not limited to such an embodiment. For example, as shown in FIG. 26, a through hole 90 a is formed in the plate piece portion 90, and inside the through hole 90 a along the right angle direction R,
Triangular engaging portion 90b for locking the locking portion of the holding cover
May be formed.

Alternatively, as shown in FIG.
2, the retaining portion 94 of the holding cover
Alternatively, a triangular engaging portion 92a that locks a may be formed. At this time, the retaining portion 94a of the holding cover is
4 are formed opposite to each other at both ends in the longitudinal direction. In the sixth embodiment of the optical cable holder described above, the fixing base 6
The example in which the terminal 68a to be inserted into the through hole 20a of the printed wiring board 20 is formed in the terminal piece portion 68 of No. 0 has been described. However, the present invention is not limited to such an embodiment. For example, terminals for surface mounting corresponding to the lands formed on the printed wiring board 20 may be formed.

In the above-described sixth embodiment of the optical cable holder, the width of the mounting portion 64 of the fixing table 60 and the size of the holding cover 62 are determined according to the number of optical cables 28 to be bundled during extra length processing. I just need. In the above-described sixth embodiment of the optical cable holder, the holding cover 6
A lightening hole may be formed between the two through holes 70. In this case, since the holding cover 62 is cooled in a short time after resin molding, deformation after molding can be prevented.

In the first embodiment of the optical cable holding structure described above, the protection sheet 88 is attached to the mounting portion 64 of the fixed base 60.
The example in which the optical cable 28 is put on the extra length 28a of the optical cable 28 placed in the above has been described. However, the present invention is not limited to such an embodiment. For example, as shown in FIG. 28, the extra length 28a is
After holding the protection sheet 88 at 0, the protection sheet 88 may be mounted on the extra-length portion 28a using another holding cover 62.

Further, the first optical cable holding structure described above
In the second embodiment, the protection sheet 88 is made of resin such as polyacetal. However, the present invention is not limited to such an embodiment. For example, the protection sheet may be formed of a metal plate, or may be formed of a metal plate that has been subjected to an electrical insulation treatment.

[0091]

According to the optical cable holder of the first and second aspects, the optical cable can be held by one-touch simply by moving the holding cover toward the fixing base, and the optical cable holding work on the printed wiring board can be held. Man-hours can be reduced. It is possible to prevent the optical cable from being loosened in the axial direction. The optical cable can be prevented from being damaged. It can be optimally held according to the number of optical cables.

The wiring of the conductive pattern can be performed around and below the fixed base, and the degree of freedom in pattern design is increased.
The mounting density of components can be improved. In the optical cable holder according to the third aspect, the locking between the locking portion and the engaging portion can be reliably performed. In the optical cable holder of claim 4,
The mounting area of the optical cable holder on the printed wiring board can be minimized.

According to the optical cable holder of the fifth aspect, it is possible to prevent the arm portion of the holding cover from coming off the fixed base due to the reaction force of the optical cable held between the holding portion and the mounting table in a pressed state. In the optical cable holder of claim 6,
The layout design of the printed wiring board is facilitated, and the mounting density of components of the printed wiring board can be improved.

According to the optical cable holder of the present invention, the operation of holding the optical cable to the optical cable holder can be easily performed. According to the optical cable holder of the eighth aspect, the fixing base can be soldered to the printed wiring board together with the other mounting components, and the number of assembling steps of the printed wiring board can be reduced.

The fixing base can be fixed to the printed wiring board without using a screw or the like, and the height of protrusion from the printed wiring board can be minimized. According to the optical cable holding device of the ninth aspect, the optical cable can be easily and reliably mounted on the mounting portion simply by dropping the optical cable between the two plate pieces. The detached optical cable can be prevented from being detached. Since the holding cover has a plate shape, it can be easily formed.

In the optical cable holder of the tenth aspect, the through hole of the holding cover can be easily inserted into the plate portion of the fixing base. After the insertion, the locking portion can be securely locked to the engaging portion. According to the optical cable holder of the eleventh aspect, the work of holding the optical cable to the optical cable holder can be easily performed.

In the optical cable holder according to the twelfth aspect, the fixing base can be soldered to the printed wiring board together with other mounted components, and the number of steps for assembling the printed wiring board can be reduced. The fixing base can be fixed to the printed wiring board without using screws or the like, and the protruding height from the printed wiring board can be minimized.

According to the optical cable holder of the thirteenth aspect, the extra length of the optical cable mounted on the mounting portion of the fixed base can be reliably held in a predetermined shape. In the optical cable holding structure of claim 14 and claim 15, the entire surplus portion can be held on the printed wiring board by the protective sheet at the same time as the holding cover is attached to the fixed base. As a result, it is possible to prevent the extra length from floating from the printed wiring board.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of an optical cable holder according to the present invention.

FIG. 2 is a partial sectional view of the optical cable holder of FIG.

FIG. 3 is a cross-sectional view showing a state where an optical cable is placed on a fixed base.

FIG. 4 is a cross-sectional view showing a state in which a holding cover is attached to a fixed base.

FIG. 5 is a cross-sectional view illustrating a state in which a locking claw of a holding cover is in contact with a mounting portion of a fixed base.

FIG. 6 is a cross-sectional view illustrating a state in which a locking claw of a holding cover is locked in an engagement hole of a fixing base.

FIG. 7 is a cross-sectional view showing a state in which the locking claws of the holding cover are sequentially locked in the engagement holes of the fixing base.

FIG. 8 is a cross-sectional view showing a state in which the optical cable is held between the mounting table and the pressing portion in a pressed state.

FIG. 9 is a perspective view showing a second embodiment of the optical cable holder of the present invention.

FIG. 10 is a partial sectional view of the optical cable holder of FIG.

FIG. 11 is a perspective view showing a third embodiment of the optical cable holder of the present invention.

FIG. 12 is a perspective view showing a state in which the optical cable holder of FIG. 11 is arranged on a printed wiring board.

FIG. 13 is a side view showing a fourth embodiment of the optical cable holder of the present invention.

FIG. 14 is a perspective view showing a fifth embodiment of the optical cable holder of the present invention.

FIG. 15 is a perspective view showing a sixth embodiment of the optical cable holder of the present invention.

16 is a partial sectional view of the optical cable holder of FIG.

FIG. 17 is a cross-sectional view showing a state where an optical cable is placed on a fixed base.

FIG. 18 is a cross-sectional view showing a state in which the locking portion of the holding cover is locked in the engagement hole of the fixing base.

FIG. 19 is a cross-sectional view showing a state in which the optical cable is held between the mounting table and the pressing portion in a pressed state.

FIG. 20 is a perspective view showing a seventh embodiment of the optical cable holder of the present invention.

FIG. 21 is a perspective view showing an eighth embodiment of the optical cable holder of the present invention.

FIG. 22 is a perspective view showing a first embodiment of the optical cable holding structure of the present invention.

FIG. 23 is a perspective view showing a second embodiment of the optical cable holding structure of the present invention.

FIG. 24 is a side view showing another example of the holding cover.

FIG. 25 is a side view showing another example of the locking claw of the holding cover.

FIG. 26 is a side view showing another example of the plate portion of the fixing base.

FIG. 27 is a side view showing another example of the plate portion of the fixing base and the locking portion of the holding cover.

FIG. 28 is a perspective view showing another example of the optical cable holding structure.

FIG. 29 is a perspective view showing a conventional optical cable extra length process on a printed wiring board.

FIG. 30 is a perspective view showing a main part of FIG. 29;

FIG. 31 is a perspective view showing another example of the conventional optical cable extra length processing on a printed wiring board.

FIG. 32 is a perspective view showing another example of the conventional optical cable extra length processing on a printed wiring board.

[Explanation of symbols]

 Reference Signs List 20 printed wiring board 20a through hole 20b land 22 fixing stand 24 holding cover 26 flat part 26a groove 28 optical cable 30 mounting part 30a through hole 32 terminal 34 arm part 34a locking claw 34b inclined part 36 holding part 40 fixing base 42 holding cover 44 Arm portion 44a Locking claw 46 Fixing table 48 Second flat portion 48a Groove 48b Notch 50 Holding cover 50a Concave groove 50b Concave groove 52 Fixing table 54 Terminal 60 Fixing table 62 Holding cover 62a Concave groove 64 Mounting section 66 Plate piece section 66a engaging part 68 terminal piece part 68a terminal 70 through hole 70a locking part 70b arc part 72 holding part 74 holding cover 74a concave groove 76 through hole 76a locking part 76b circular part 78 pressing part 78a concave groove 80 holding cover 82 penetrating Hole 82a Locking portion 82b Arc portion 80a Groove 84 C Le guide portion 84a cable holding portion 86, 88 protective sheet R perpendicular W1, W2, W5 width W3, W4, W6 interval W7 distance

Claims (15)

[Claims] 1. A fixed base fixed on a printed wiring board, and a holding cover detachably attached to the fixed base, wherein the fixed bases are opposed to each other in a direction perpendicular to the printed wiring board. A pair of flat portions provided with a plurality of engaging portions along the right angle direction, and a mounting portion provided on the opposite side of the printed wiring board on the fixed base for mounting an optical cable; The cover includes a locking portion provided at a position facing each of the flat portions and locked to one of the engaging portions, and the optical cable mounted on the mounting portion, the mounting portion being configured to include the mounting portion. An optical cable holder, comprising: a cable holding portion to be held. 2. A fixed base fixed on a printed wiring board, and a holding cover detachably attached to the fixed base, wherein the fixed bases are opposed to each other in a direction perpendicular to the printed wiring board. A pair of flat portions provided with a plurality of engaging portions along the perpendicular direction, and a mounting portion provided on the opposite side of the printed wiring board for mounting an optical cable, wherein the holding cover is A pair of arms each having an elastic portion in the direction of the flat portion at a position facing each flat portion and having a locking portion locked by any of the engaging portions; An optical cable holder provided on a side of the optical cable and holding the optical cable mounted on the mounting portion with the mounting portion. 3. The optical cable holder according to claim 2, wherein each of the engaging portions of the flat portion is formed by a groove parallel to the printed wiring board, and the locking portion of the holding cover is formed by the groove. An optical cable holder characterized by being formed by a projection inserted into the optical cable holder. 4. The optical cable holder according to claim 2, wherein the flat portion is provided outside the fixing base, and the locking portion of the holding cover is provided inside the holding cover. An optical cable holder characterized by being provided. 5. The optical cable holder according to claim 2, wherein the flat portion is provided inside the fixed base, and the arm of the holding cover is provided on the mounting portion in front of the fixed base. A through-hole for inserting the holding cover, the locking portion of the holding cover,
An optical cable holder provided outside the holding cover. 6. The optical cable holder according to claim 2, wherein the fixed base is provided to face the printed wiring board in a direction perpendicular to the printed circuit board, and is provided in the direction perpendicular to the printed circuit board. An optical cable holder characterized in that a pair of second flat portions having a plurality of engaging portions along the flat portions are provided in a direction perpendicular to the flat portions. 7. The optical cable holding device according to claim 2, wherein a plurality of concave grooves corresponding to the outer shape of the optical cable are provided inside the holding cover. An optical cable holder. 8. The optical cable holder according to claim 2, wherein the fixed base is soldered to a through hole or a land formed in the printed wiring board on a side of the printed wiring board. An optical cable holder provided with a conductive terminal to be attached. 9. The optical cable holder according to claim 1, wherein the fixing base includes a pair of mutually opposing plate pieces protruding to the opposite side of the printed wiring board, and the flat part includes the respective plates. The mounting portion is provided between the two plate pieces; the holding cover is formed in a plate shape having a through hole through which the plate piece is inserted; Is an optical cable holder provided in the through hole. 10. The optical cable holder according to claim 9, wherein each of the engagement portions of the flat portion and the locking portion of the holding cover are formed by projections facing each other, and at least one of the projections is An optical cable holder having elasticity. 11. The optical cable holder according to claim 9, wherein a plurality of concave grooves corresponding to the outer shape of the optical cable are provided on a surface of the holding cover facing the printed wiring board. An optical cable holder, characterized in that: 12. The optical cable holder according to claim 9, wherein a solder is attached to a through hole or a land formed in the printed wiring board on the printed wiring board side of the fixing base. An optical cable holder provided with a conductive terminal to be attached. 13. The optical cable holder according to claim 9, wherein the holding cover has an extra length of the optical cable mounted on the mounting portion of the fixing table. An optical cable holder provided with a cable guide portion for holding the extra length along the cable guide. 14. The optical cable holder according to claim 2, wherein the plurality of fixing bases are fixed on a printed wiring board in accordance with the surplus length of the optical cable, and the mounting part of the fixing base is provided with the extra length of the optical cable. The protective cable having an opening at a position corresponding to the engaging portion of each of the fixing bases is covered with the extra length portion, and the arm portion of the holding cover in the optical cable holding device according to claim 2, wherein the arm portion of the holding cover is protected. An optical cable holding structure, wherein the optical cable holding structure is characterized in that the opening portion of the sheet is inserted and locked to the engaging portion of the fixing base, and the entire excess length is held on the printed wiring board. 15. The optical cable holder according to claim 9, wherein the plurality of fixing bases are fixed on a printed wiring board in accordance with the extra length of the optical cable, and the extra length of the optical cable is placed on a mounting portion of the fixing base. The protection sheet having an opening through which the plate piece of each of the fixed bases is inserted is covered with the extra length portion, and the protection sheet is provided with the through hole of the holding cover in the optical cable holding device according to claim 9. An optical cable holding structure, wherein the optical cable holding structure is engaged with an engagement portion of the plate piece protruding from the opening, and holds the entire excess length portion on the printed wiring board.