JPH10148723A - Fixing structure for wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily fix a wire to a wire fixing surface disposed at a supporting material. SOLUTION: A recessed part 20 opened at the supporting material 3 is internally and projectingly provided with a projection 22 for fixing from the outer peripheral part of the recessed part 20 toward the central part. A tying member 29 inserted into a spacing 24 opened near the front end of the projection 22 for fixing is moved to the recessed part 20 at the circumference of the projection 22 for fixing. The projection 22 for fixing and the wire 31 arranged along the projection 22 for fixing are integrally bundled by the tying member. As a result, the fixing structure for the wire capable of tying and fixing the wire 31 only by the work from the wire fixing surface 4 side of the supporting material 3 is obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire fixing structure, and more particularly, to a wire fixing structure disposed along a wire fixing surface formed on a support member.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show an optical distribution board. FIG.
In FIG. 6 and FIG. 6, the optical distribution board 1 is provided on a flat wire fixing surface 4 opposite to the mounting surface 2 of a bottom plate 3 mounted on a mounting surface 2 provided on a floor of a building, for example. 4
A cable gripper 6 for fixing the optical cable 5 pulled in above, an optical fiber 7 drawn from the optical cable 5 and a fixing tool 9 for fixing an output side optical fiber 8 connected to the optical fiber 7, and both optical fibers 7, 8 and a connection section storage section 10 for removably storing the optical connection section and the extra connection length. As shown in FIG. 6, the fixture 9 is a member formed in a gate shape from a resin or the like, and the wire fixing surface 4 is formed by bonding or the like.
It is fixed in a protruding state at the top. The cable gripper 6 is fixed by screws using a screw hole 11 drilled at an appropriate place in the bottom plate 3. When an optical cable 12 or an optical fiber (not shown) is separately drawn into the optical distribution board 1, as shown in FIG. 7, a binding member 14 such as an insulator tie is inserted into a pair of holes 13 penetrated through the bottom plate 3. And the optical cable 12 is bound and fixed to the bottom plate 3 by the binding member 14.

[0003]

In the structure in which the optical cable 12 is fixed by the binding member 14, when the binding member 14 is inserted into both holes 13 forming a pair, it is necessary to work on both sides of the bottom plate 3. Therefore, there is a problem in that the workability is unsatisfactory, and when the optical cable 12 is added to the existing optical distribution board 1, the optical distribution board 1 must be once removed from the mounting surface 2, which makes the work difficult. . In view of the above problem, a fixing member is protruded from the wire fixing surface 4 to connect the fixing member and the optical cable 12 to the binding member 1.
4, it is conceivable that the fixing member increases the number of assembling steps of the optical wiring board 1, and the fixing member interferes with the operation in the optical wiring board 1, or the optical wiring board 1 is large-sized. This causes inconveniences such as Further, in order to prevent the optical cable 12 from being stress-strained by the binding force, it is necessary to increase the size of the fixing member and secure an abutting area with the optical cable 12, so that the above-mentioned problem becomes more remarkable. In addition,
The above-described problem also occurs when a plurality of wires such as optical cords are bound and fixed.

The present invention has been made in view of the above-mentioned problems, and has as its object to provide a wire fixing structure that can easily fix a wire to a wire fixing surface provided on a support member. is there.

[0005]

The present invention has the following features to attain the object mentioned above. That is, according to the first aspect of the present invention, a projection is provided from the outer peripheral portion toward the center portion of the concave portion, which is formed in the flat wire fixing surface provided on the support member, from the outer peripheral portion to the central portion. A fixing projection forming a gap therebetween, and a linear or belt-shaped binding member for binding the fixing projection and a wire attached to the wire fixing surface so as to pass to the recess along the fixing projection. The gap is communicated with a concave portion around the fixing projection, and the binding member is inserted into the concave portion around the fixing projection through the gap. The solution. Various shapes can be adopted as the concave portion formed in the support material, and for example, a hole or the like penetrating the support material can be employed. Various shapes can be adopted as the fixing projection, and if a concave portion is secured around the binding member so that the binding member can be wound, a shape protruding from the supporting material on the opposite side to the wire fixing surface is used. It is also possible. As the binding member, it is preferable to adopt a band-shaped body such as an insulated tie or a rubber band, or a wire such as a string. An electric cable, an optical cable, or the like is used as the wire.

According to the second aspect of the present invention, there is provided a wire rod fixing structure according to the first aspect, wherein a wire contact surface extending flush with the wire fixing surface is formed on a fixing projection. Was the solution. More preferably, the wire contact surface has a shape that increases the contact area with the wire. It is preferable that the opening amount of the gap on the wire fixing surface be the minimum necessary for inserting the binding member. As a result, the binding force acting on the bound wire is dispersed over a wide range, and the wire can be bound and fixed without deforming the wire. In addition, the frictional resistance that resists the movement of the wire in the longitudinal direction can be increased. The present invention is particularly suitable for fixing various optical fibers such as optical cables and optical cords. When the optical fiber is fixed by the wire fixing structure of the present invention, the optical fiber that is in contact with the wire fixing surface that is flush with the wire fixing surface is bound and fixed. The contact area with the wire can be sufficiently ensured, and the wire is prevented from being stress-strained by the binding force.

According to the third aspect of the present invention, a locking claw is projected from a side surface of the fixing projection, and a binding member that binds the wire and the fixing projection is locked to restrict movement in the axial direction of the wire. A wire fixing structure characterized by the above-mentioned feature is provided as a means for solving the above problem. As the locking claw, a structure for locking the binding member inserted between the locking claw and the base end of the fixing protrusion to restrict movement in the direction of the locking claw, or not binding It is possible to adopt a configuration in which the binding member can be locked and held at a fixed position. Further, the locking claw may be configured to form a wire rod contact surface that is flush with the wire rod fixing surface. In this case, the wire can be arranged along the wire contact surface formed by the locking claw, and the binding member is turned by a binding member that is turned from the side opening and the gap to the concave side of the locking claw and inserted therethrough. The pawl and the wire can be integrally bound and fixed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a wire fixing structure according to the present invention will be described below with reference to FIGS. FIG. 1 shows an example in which the wire fixing structure according to the present invention is applied to an optical wiring board. In the drawings, the same components as those in FIGS. 5 to 7 are denoted by the same reference numerals, and description thereof will be simplified. In FIGS. 1 and 2, the fixing structure of the wire is such that the wire is fixed from the outer periphery to the center of the recess 20 in the flat wire fixing surface 4 provided on the support member 3 (bottom plate) made of a thin steel plate. Wire contact surface 21 protruding toward and extending flush with the wire fixing surface 4
, And a band-shaped binding member 29 (Insulok) for binding and fixing the fixing projection 22 and the wire 31 (optical cord) arranged so as to pass along the fixing projection 22 to the recess 20. Thailand). The distal end of the fixing projection 22 forms a gap 24 between the inner surface of the recess 20 and the binding member 29, through which the binding member 29 can be inserted. The gap 24 communicates with the recess 20 around the fixing projection 22 (excluding the wire contact surface 21 side), and the binding member 29 is inserted into the recess 20 around the fixing projection 22 via the gap 24. Here, the portion inserted into the opening 23 on both sides of the concave portion 20 opened on both sides of the fixing projection 22 is referred to as the fixing projection 22 and the wire 3.
By winding the wire around the outside, the fixing projection 22 and the wire 31 are bound.

As shown in FIG. 1, the support member 3 is fixed to the mounting surface 2 by the legs 25, and has a substrate 26 which is spaced apart from and parallel to the mounting surface 2. The recess 20
This is a space formed between the mounting surface 2 and the board 26, and communicates with the inside and outside of the board 26 through an opening 27 opened in a rectangular shape. The fixing projection 22 protrudes from one long side of the opening 27 and extends to the vicinity of the long side on the other side.
At the tip of the fixing projection 22, locking claws 28 projecting from both sides in the width direction of the fixing projection 22 (a direction perpendicular to the projecting direction and parallel to the wire contact surface 21) are provided. Note that the fixing projection 22 and the opening 27 can be easily formed by performing simple processing such as punching or cutting on the support member 3.

Both the side opening 23 and the gap 24 are formed so that the binding member 29 can be inserted therethrough and communicate with each other, so that the binding member 29 inserted into the gap 24 is connected to the side opening 2.
3 can be moved. As shown in FIGS. 1 and 3, the binding member 29 moved to the side opening 23 is tightened up by a lock portion 30 disposed above the support member 3,
The wire 31 (optical cord) placed on the wire contact surface 21 along the projecting direction of the fixing protrusion 22 and the fixing protrusion 22 are integrally bound. Since the binding member 29 in the bound state does not separate from the vicinity of the fixing projection 22 on both sides of the fixing projection 22, even if a displacement force in the longitudinal direction is applied to the wire 31, any of the substrate 26 and the locking claw 28 is applied. The movement is regulated by being locked. When the binding force of the binding member 29 is strong, the wire 31 is held in place, and when the binding force of the binding member 29 is weak, the movement of the wire 31 with respect to the binding member 29 is allowed.

The wire 31 is fixed to the fixing projection 22 by the binding member 29.
In order to bind the central portion 33, the curved central portion 33 of the binding member 29 is inserted into the gap 24, and then the binding member 29 is moved in the direction of the base end portion 32 of the fixing projection 22. Is inserted below the fixing projection 22, and both ends 34 in the longitudinal direction of the binding member 29 are respectively inserted into the side openings 23, where the wire 3 is placed on the wire contact surface 21.
After placing 1, the both ends 34 of the binding member taken out above the wire 31 are wound around the outside of the fixing projection 22 and the wire 31 and the lock portion 30 is attached and tightened.

Therefore, according to this wire fixing structure, the wire 31 can be bound and fixed to the support 3 only by the work on the wire fixing surface 4 side of the support 3, so that the hole 13 shown in FIG. Work can be performed extremely easily as compared with the fixing structure used, and workability is greatly improved. This makes it possible to perform the binding operation on the existing support member 3 without removing the support member 3 from the mounting surface 2.
This effect can be obtained regardless of the type of the wire. In addition, since the optical cord 31 placed on the wire contact surface 21 flush with the wire fixing surface 4 is bound and fixed by the band-shaped binding member 29, the binding force acting on the optical cord 31 is dispersed over a wide area, Since the stress distortion of the optical cord is prevented, the optical transmission performance of the optical cord 31 can be maintained. This means that the optical cord 3
The same applies to the case where various optical fibers other than 1 are bundled and fixed. When a plurality of optical fibers are bundled and fixed, the contact area is easily secured, and the effect of preventing stress distortion becomes more remarkable. Also, since there are few components protruding above the wire fixing surface 4 and the installation space is extremely small, there is no need to worry about an increase in the size of the optical wiring board even if a large number is installed on the support member 3, and the work in the optical wiring board can be easily performed. No interference occurs. In addition, even when the support member 3 is mounted on a vertical mounting surface provided on a wall or the like, workability can be similarly improved.

FIG. 4 shows a wire fixing structure in which a number of fixing protrusions are provided in series. In FIG. 4, reference numeral 35 denotes the substrate 26
A plurality of fixing projections 22 are provided at a plurality of positions in the longitudinal direction at regular intervals. The two long grooves 35 are formed in parallel, and the fixing projections 22 of each long groove 35 are located at positions corresponding to each other between the long grooves 35, and the corresponding fixing projections 22 between the long grooves 35 fix the same wire 31. Constitute a pair. Therefore, between the long grooves 35, a plurality of pairs of the fixing projections 22 are formed in parallel.

According to this wire fixing structure, in order to fix the wire 31 to the support member 3, the wire 31 is placed on a pair of the fixing projections 22, and the wires 31 correspond to the fixing projections 22 of the wire 31. The fixing protrusion 2 is formed by using a binding member 29 at two longitudinal positions.
Unite with 2. Thereby, the binding force of the wire 31 can be strengthened by increasing the number of binding locations, so that the wire 31 can be stably fixed at a target position without causing a displacement. Similarly, the wires 31 can be bound and fixed by each pair of the fixing projections 22, whereby a plurality of wires 31 are bound and fixed in parallel. Also,
In each of the long grooves 35, a large number of fixing projections can be continuously arranged at a high density in the longitudinal direction.
1 can be bound and fixed at high density. In addition, the long groove 3
When 5 is added, the number of binding portions of the wire 31 can be increased, so that the fixing force of the wire 31 can be increased. Further, the long groove 35 and the fixing projection 22 can be easily formed only by performing simple processing such as punching or cutting on the support member 3.

The shapes of the fixing projections 22 and the locking claws 28 are not limited to those in this embodiment.

[0016]

As described above, according to the wire fixing structure of the first aspect, the binding member inserted into the gap extending around the distal end of the fixing projection is provided with the concave portion around the fixing projection. , And the fixing projection and the wire rod arranged along the fixing projection are integrally bound, so that the following excellent effects can be obtained. (1) Since the wires can be bound and fixed only by working from the wire fixing surface side provided on the support member, workability is improved. (2) According to (1), the wire can be bound and fixed to the existing support without removing the support from the installation position. (3) Since there are no parts protruding above the wire fixing surface, the installation space can be extremely small, and interference with work on the wire fixing surface can be avoided.

According to the wire rod fixing structure of the second aspect,
By forming a wire contact surface extending in the same plane as the wire fixing surface on the fixing protrusion, and bringing the wire contact surface into contact with the wire disposed across the recess opening, the following is achieved. It has excellent effects. (1) The binding force acting on the wire is dispersed over a wide range, and the wire can be bound and fixed without deforming the wire. (2) It is possible to increase the frictional resistance against the movement of the wire in the longitudinal direction, and it is possible to reliably restrict the movement of the wire in the longitudinal direction.

According to the wire fixing structure of the third aspect,
A locking claw protrudes from the side surface of the fixing projection to lock the binding member that binds the wire and the fixing projection, thereby restricting the movement of the wire in the axial direction, thereby restricting the movement of the wire in the axial direction. And an excellent effect that the wire can be securely fixed at a fixed position can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a wire fixing structure according to the present invention.

FIG. 2 is a plan view showing an optical distribution board to which the wire fixing structure of FIG. 1 is applied.

FIG. 3 is a front sectional view showing a fixing structure of the wire rod of FIG. 1;

FIG. 4 is a plan view showing a wire fixing structure formed by connecting a large number of fixing protrusions.

FIG. 5 is a plan view showing an optical distribution board.

FIG. 6 is a front view showing the optical distribution board of FIG. 5;

FIG. 7 is an enlarged perspective view of a main part showing a fixing structure of a conventional example.

[Explanation of symbols]

3 ... Support material (bottom plate), 4 ... Wire fixing surface, 20 ... Recess, 2
DESCRIPTION OF SYMBOLS 1 ... Wire contact surface, 22 ... Fixing protrusion, 24 ... Gap, 28
… Locking claw, 29… Bundling member (insulation tie), 3
1. Wire (optical cord).

Claims (3)

[Claims] 1. A recess (20) opening in a flat wire fixing surface (4) provided on a support member (3), protruding from an outer peripheral portion of the recess toward a central portion, and has a tip of a fixing protrusion. A fixing projection (22) for forming a gap (24) between the inner surface of the recess and a fixing projection and a wire attached to the wire fixing surface so as to pass along the fixing projection to the recess. A linear or band-shaped binding member (29), wherein the gap communicates with a recess around the fixing projection, and the binding member is inserted into the recess around the fixing projection via the gap. A wire rod fixing structure characterized by the above-mentioned. 2. The wire fixing structure according to claim 1, wherein a wire contact surface (21) extending flush with the wire fixing surface is formed on a fixing projection. 3. A locking claw (28) protruding from a side surface of the fixing projection to lock a binding member which binds the wire and the fixing projection to restrict movement in the axial direction of the wire. Wire rod fixing structure.