JP2003008255A - Cable clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow structures of cable clamps for mounting a base and for additionally installing to be the same, to reduce the types of components to be diverted to each other, to hence decrease inventory cost, and to decrease a mounting cost of the clamp at the base, as compared with conventional cable clamps. SOLUTION: A cable clamp body 2 has slits 6a, 6b for holding a cable at an upper part and is formed in a cylindrical state. A strut 3 is provided at a bottom of the body 2 fixed to the base 10, by inserting a base inserting part 4 into the cable clamp mounting hole 5 provided at the base 10 to support the body 2. The body 2 has a cable clamp mounting hole 9 for engaging the base inserting part of other cable clamp at a side face, when the base inserting part of the strut similar to the part 4 of the strut 3 is used as for additionally providing the other cable clamp.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable clamp, and more particularly to a cable clamp for holding an optical fiber cable and various other cables used in communication equipment or electronic equipment.

[0002]

2. Description of the Related Art Optical fiber cables and other cables are used in various places in communication equipment or electronic equipment for various purposes, and there is also a method of holding these cables inside the equipment. Various methods are used.

For example, when an optical fiber cable or other cable used as a signal transmission path inside a communication device has a length longer than a length required for the transmission path and an extra length is generated, the extra length is generated. A cable clamp used for accommodating a long portion in a loop shape on the spot is disclosed in JP 2000-286574 A and JP 20 A-20.
The one disclosed in Japanese Patent Application No. 01-7564 is known.

In addition, various cables are often used for the circuit on the printed circuit board of the communication equipment. At this time, the method of holding the cable on the printed circuit board is generally by mounting a cable clamp on the printed circuit board. A method of holding a cable using this cable clamp is performed. That is, the cable clamp mounting hole is opened on the printed circuit board to fix the cable clamp, and the cable is held by the cable clamp fixed on the printed circuit board.

In the above case, in order to prevent the printed circuit from being damaged by the perforation of the mounting hole for the cable clamp on the printed circuit board, the machining position of the mounting hole for the cable clamp is determined by the design of the printed circuit board. It must be predetermined in stages.

The cable clamp disclosed in the above-mentioned Japanese Patent Laid-Open No. 2000-286574, as shown in FIG. 4A, has a mounting portion 32 for fixing the cable clamp 31 to a cable holding plate such as a printed circuit board. It is integrally formed with a cable grip portion 33 for restraining and gripping the cable. The cable clamp 31 is fixed to the cable holding plate by forming a mounting hole in the cable holding plate of a communication device and inserting the mounting portion 32 into the mounting hole.

The cable clamp shown in FIG. 4 (b) is an extension cable clamp which is used in combination with the cable clamp shown in FIG. 4 (a) when the cable clamp is added. When the cable clamp is added, the groove 34 on the side surface of the main cable clamp shown in FIG.
The convex portion 35 on the side surface of the extension cable clamp shown in FIG. Figure 4
The extension cable clamp shown in (c) is an extension cable clamp having a convex portion 36 on one side surface and a groove portion 37 on the other side surface. FIG. 5 shows a combined state in which the convex portion 35 on the side surface of the extension cable clamp shown in FIG. 4B is pushed into the groove 34 of the cable clamp shown in FIG.

In addition, in the cable clamp disclosed in the above-mentioned Japanese Patent Laid-Open No. 2001-7564, when the cable clamp is added, an additional cable clamp is printed in the same manner as the cable clamp disclosed in Japanese Patent Laid-Open No. 2000-286574. It is designed to be used by laterally attaching it to the side surface of the main cable clamp that was first attached to a board or the like.

As described above, Japanese Unexamined Patent Publication No. 2000-2865
The cable clamps disclosed in Japanese Patent Laid-Open No. 74 and Japanese Patent Laid-Open No. 2001-7564 each have a mounting hole for a cable clamp on a printed circuit board even if an additional cable clamp for holding an extra length portion of the cable is required. It is possible to add a cable clamp without additional processing. Further, in the case of JP 2000-286574 A, an additional cable clamp is installed at a position for accommodating an increased cable in consideration of mounting conditions of surrounding components. Since it can be changed up and down depending on the method, it is possible to improve the degree of freedom in the design of the printed circuit board, and it is possible to eliminate the additional processing of the mounting hole for the cable clamp that may cause damage to the printed circuit board. As a result, damage to the printed circuit board can be reduced, and the storage cable becomes longer or It has the advantage that it can easily cope with an increase in the number of accommodating the cable on the same printed circuit board.

However, while the above-mentioned conventional cable clamp has the above-mentioned advantages, it has the following problems.

In the case of the cable clamp described in Japanese Patent Laid-Open No. 2000-286574, the main cable clamp and the extension cable clamp have different shapes and cannot be diverted to each other, and the number of types of parts increases. Have

Further, in the case of the cable clamp disclosed in Japanese Patent Laid-Open No. 2001-7564, when the main cable clamp is attached to the printed circuit board or the like, it is provided on the printed circuit board or the like by a pair of leg portions each having engaging pieces facing each other. Since it has a structure in which it is inserted into a pair of rectangular through-holes and attached, the work of providing the above-mentioned through-holes in a printed circuit board or the like is more troublesome and costs more to attach than simply providing holes. I have a problem.

[0013]

In the conventional cable clamp described above, in the case of Japanese Patent Laid-Open No. 2000-286574, the main cable clamp and the extension cable clamp have different shapes and cannot be diverted to each other. There is a problem that the types increase as
In the case of Japanese Unexamined Patent Application Publication No. 2001-7564, when a cable clamp is first attached to a printed circuit board or the like, a pair of rectangular shapes provided on the printed circuit board or the like are provided by a pair of legs each having engaging pieces facing each other. Since the structure is such that it is inserted into the through hole and attached, the work of providing the above through hole in the printed circuit board, etc. is more troublesome than the case of simply providing a hole. Since the structure of one side surface of the main cable clamp for mounting is complicated, the structure of both the main cable clamp and the extension cable clamp is complicated, so that there is a drawback that the cost is high.

An object of the present invention is to increase the number of accommodated cables so that a cable clamp can be added without additional machining of a cable clamp mounting hole in a printed circuit board, and the number of accommodated cables can be increased. It can be changed depending on how to add the cable clamps, and the structure of the board mounting cable clamp and the extension cable clamp can be made the same so that they can be used interchangeably. Therefore, the number of types of parts can be reduced to reduce the inventory cost. Another object of the present invention is to provide a cable clamp that can be manufactured at a lower cost than the conventional cable clamp.

[0015]

A cable clamp according to a first aspect of the present invention is a cable clamp for holding a cable on a substrate. (A) A mechanism for holding the cable is formed in a tubular shape. (B) a cable clamp body portion provided with a bottom portion of the cable clamp body portion, and a cable clamp mounting hole for mounting a cable clamp provided on the board, the tip portion of which is fitted into the cable clamp body hole; A column portion for fixing the main body portion, and the cable clamp main body portion includes the above-mentioned other when the other cable clamp having a tip portion of the column portion similar to the tip portion of the column portion is used for extension. At least one hole for inserting the tip portion of the column portion of the cable clamp is provided on the side surface of the cable clamp body portion. Configured as characterized by.

The cable clamp of the second invention is
In the cable clamp of the first invention, as a mechanism for holding the cable, a slit for sandwiching and holding the cable is provided from the edge of the opening of the tubular cable clamp body toward the bottom. It is characterized by that.

The cable clamp according to the third invention comprises:
In the cable clamp of the second invention, as the slit, a first slit provided at one position of an edge of an opening of the tubular cable clamp body, and an edge provided with the first slit are provided. It is characterized in that it has a second slit which is paired with the first slit and which holds the cable by sandwiching the same at the opposite edge facing each other.

Also, the cable clamp of the fourth invention is
The cable clamp according to the second or third aspect of the invention is characterized in that it has a cable protrusion preventing means for preventing the cable from protruding from the slit.

The cable clamp of the fifth invention is
In the fourth cable clamp, as the cable squeezing-out preventing means, a portion having a narrower slit gap than other portions is provided at a predetermined position from an upper edge of each of the first slit and the second slit. It is characterized by.

Further, the cable clamp of the sixth invention is
In the first, second, third, fourth, or fifth cable clamp, the shape of the tip portion of the column portion is formed in a bullet shape so that the tip portion of the column portion can be easily fitted into the cable clamp mounting hole. It is characterized by that.

Further, the cable clamp of the seventh invention is
In the first, second, third, fourth, fifth or sixth cable clamp, the tubular cable clamp main body is formed in a cylindrical shape.

The cable clamp of the eighth invention is
In the first, second, third, fourth, fifth, sixth or seventh cable clamp, the column portion or the tip portion of the column portion is formed of a material having high elasticity. Composed.

The cable clamp of the ninth invention is
In the first, second, third, fourth, fifth, sixth, seventh or eighth cable clamp, a cable clamp removal preventing means for preventing the cable clamp from being removed from the cable clamp mounting hole of the board. It is characterized by having.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an external perspective view showing an embodiment of the cable clamp of the present invention.

The cable clamp 1a according to the present embodiment shown in FIG. 1 is a cable clamp for holding an optical cable or other cables on a substrate 10 such as a printed circuit board used in communication equipment or other electronic equipment. Yes,
Slits 6a, 6 that are a mechanism for holding the cable
A cylindrical cable clamp main body 2 having b at the top, and a cable clamp mounting hole 5 provided on the bottom of the cable clamp main body 2 for mounting the cable clamp provided on the substrate 10 and having a tip portion. It is composed of a support column portion 3 which supports the cable clamp main body portion 2 on the substrate 10 by inserting the substrate insertion portion 4 which is.

That is, the column 3 is provided at the bottom of the cable clamp body 2, and the board insertion portion 4 is inserted into the cable clamp mounting hole 5 provided in the board 10 and fixed to the board 10. It is configured to support the part 2.

As shown in FIG. 1, the cable clamp body 2 has a cable clamp mounting hole 9 on its side surface, and another cable clamp having a board insertion portion similar to the board insertion portion 4. When using as an extension, the other cable clamp described above can be fixed to the side surface of the cable clamp main body portion 2 by inserting the board insertion portion of the other cable clamp into the cable clamp attachment hole 9.

Further, the slits 6a and 6b are predetermined from the upper edge of the cable clamp body 2 in each of the slits 6a and 6b as a cable protrusion preventing means for preventing the held cable from protruding. At the position, cable protrusion preventing portions 7a and 7b having convex portions on both sides of the slit are provided in order to make the gap of the slit narrower than other portions.

Further, the shape of the board insertion portion 4 of the column portion 3 of FIG. 1 is formed in a bullet shape so that it can be easily fitted into the cable clamp mounting hole 5. The surface of the board insertion portion 4 is formed of a material having high elasticity such as rubber.

Next, an example of use of the cable clamp of this embodiment shown in FIG. 1 will be described.

FIG. 2 is a schematic view showing an embodiment of the cable clamp of the present invention shown in FIG.

Referring to FIG. 2, the cable clamps 12a to 12 hold the cable 11a on a substrate (not shown), sandwich the cable 11a, and hold it as a loop-shaped cable 11b.
d (same as the cable clamp 1a in FIG. 1) is fixed on the substrate. Cable clamps 12a-12d
The respective cable clamps 12a to 12d each have a board insertion portion (not shown) (the same as the board insertion portion 4 of the cable clamp 1a shown in FIG. 1) inserted into a cable clamp mounting hole provided at four locations on the board not shown above. And is fixed on the substrate. The cable 11b is sandwiched and held by the slits 13a and 13b of the cable clamps 12a to 12d, the slits 14a and 14b, the slits 15a and 15b, and the slits 16a and 16b.

As described above, the cable 11a is accommodated as the loop-shaped cable 11b on the substrate (not shown). In this state, the cable 21a is further provided on the substrate.
In the case of retracting and accommodating the cable clamps, as shown in FIG. 2, cable clamps 22a to 22d for expansion (same as the cable clamp 1a in FIG. 1) are attached to the cable clamps 12a to 12d. The attachment of the additional cable clamps 22a to 22d is performed by the board insertion portions 25a to 25d of the support columns 24a to 24d of the extension cable clamps 22a to 22d (the same as the board insertion portion 4 of the cable clamp 1a in FIG. 1). ) To the cable clamp 1
It is carried out by inserting the cables into the cable clamp mounting holes respectively provided on the side surfaces of the cable clamp body portions 2a to 12d and fitting them.

As shown in FIG. 2, the cable clamp 12
Cable clamps 22a to 22d for extension to a to 12d
Is attached and fixed, the cable clamp body portions 23a to 2d of the additional cable clamps 22a to 22d are attached.
Cable 21a is provided in each slit (not shown) of 3d.
Is drawn in, sandwiched, and held as a loop-shaped cable 21b. Extension cable clamps 22a-2
The cable 21b held by 2d has a larger loop than the cable 11b held by the cable clamps 12a to 12d, and its holding position is a low position.

In FIG. 2, as described above, the additional cable clamps 22a to 22d are added to the cable clamps 12a to 12d.
Although the description has been made in the case where the attachment of 22d is performed, as shown in FIG. 2, it is possible to additionally add an additional cable clamp to the cable clamp attachment holes 26a to 26d on the side surfaces of the cable clamps 22a to 22d. Is.

In the above description, the cable clamp main body portion 2 of the cable clamp 1a is inserted into the cable clamp mounting hole 5 of the substrate 10, and the wall surface of the board insertion portion 4 of the column portion 3 and the cable clamp mounting hole 5 is inserted. It has been described that it is fixed and held on the substrate 10 by the close contact with
As a cable clamp removal preventing means for preventing the cable clamp from coming off from the substrate 10, a plurality of cable clamp removal preventing parts 8a and 8b and a cable clamp removal preventing part (not shown) are provided as in the cable clamp 1b shown in FIG. The cable clamp removal prevention part may be provided. By providing a plurality of cable clamp removal prevention portions such as the cable clamp removal prevention portions 8a and 8b, the board insertion portion 4 is attached to the cable clamp attachment hole 5
When the cable clamp 1b is attached to the board 10 by attaching the cable clamp 1b to the board 10, the tip portions of the cable clamp pull-out prevention portions 8a and 8b are pressed against the surface of the board 10 to prevent the cable clamp 1b from wobbling. Can be prevented from coming off.

Although the cable clamp main body 2 has only the cable clamp mounting holes 9 as the cable clamp mounting holes as shown in FIG. 1, a plurality of side surfaces of the cable clamp main body 2 have been described. When using a cable clamp with a cable clamp mounting hole at a location and adding a cable clamp for expansion to hold the additional cable, A cable clamp mounting hole provided at a position suitable for holding may be selected and an additional cable clamp may be added to that position.

Further, as described above, in the case of the cable clamp 1 of FIG. 1, as a mechanism for holding the cable, the cable clamp body 2 is provided at the opposite edge facing one edge of the opening. Slits 6a and 6b for sandwiching and holding the cables in pairs are provided from the edge of the opening of the cable clamp body 2 toward the bottom, but the positions where the slits 6a and 6b are provided are not always required. Considering the shape of the loop formed by the cable, which does not have to be provided facing each other and is held by two slits, for example, if the loop formed by the cable has a circular shape, two slits are used. When held, the slits 6a and 6b may be provided in such a positional relationship that the held portion of the cable naturally becomes a circular portion, that is, an arc.

In the case of the cable clamp 1 shown in FIG. 1, the tubular cable clamp main body 2 has been described as having a cylindrical shape, but it is not limited to a cylindrical shape and may be a polygonal cylindrical shape.

[0041]

As described above, according to the cable clamp of the present invention, in the cable clamp for holding the cable on the substrate, the cable clamp main body is formed in a tubular shape to hold the cable. Is provided on the upper part, and the bottom of the cable clamp main body is provided with a pillar for fixing the cable clamp main body to the supporting substrate by fitting the tip portion into the hole of the substrate when inserted into the hole provided on the substrate. Along with the side of the cable clamp body,
At least one formed to mate with the tip of another cable clamp post when inserted
By providing the holes of (1) and (2) above, it is possible to add a cable clamp without additional processing of a cable clamp mounting hole on the printed circuit board when the number of accommodated cables increases, and to accommodate the increased number of cables. While maintaining the advantage of the prior art that the position can be changed depending on how the cable clamp is added, the main cable clamp that is first attached to the board and the additional cable clamp can have the same structure and can be diverted from each other. It is possible to reduce the kinds of parts and reduce the inventory cost.

Further, there is an effect that the attachment cost to the substrate can be reduced as compared with the conventional cable clamp.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of a cable clamp of the present invention.

FIG. 2 is a schematic view showing an embodiment of the cable clamp of the present invention shown in FIG.

FIG. 3 is an external perspective view showing another embodiment of the cable clamp of the present invention.

FIG. 4 is an external perspective view of a conventional cable clamp.

5 is an external perspective view showing a connected state of the cable clamp of FIG. 4. FIG.

[Explanation of symbols]

1a, 1b cable clamp 2 Cable clamp body 3 props 4 Board insertion part 5 Cable clamp mounting hole 6a, 6b slit 7a, 7b Cable protrusion prevention part 8a, 8b Cable clamp removal prevention part 9 Cable clamp mounting hole 10 substrates 11a, 11b cable 12a-12d cable clamp 13a, 13b slit 14a, 14b slit 15a, 15b slit 16a, 16b slit 21a, 21b cable 22a-22d Cable clamp 23a to 23d Cable clamp main body 24a to 24d prop 25a to 25d Board insertion part 26a to 26d Cable clamp mounting hole 31 cable clamp 32 Mounting part 33 Cable grip 34 Groove 35, 36 convex 37 Groove

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4E352 AA06 AA07 AA08 BB04 CC01                       CC56 DD05 DR02 DR11 DR13                       DR14 DR25 DR40 FF09 GG12                 4E353 AA17 BB05 CC04 CC36 DD05                       DD08 DR08 DR17 DR49 GG20                       GG21

Claims (9)

[Claims] 1. A cable clamp for holding a cable on a substrate, comprising: (A) a cylindrical cable clamp main body having a mechanism for holding the cable in an upper portion, and (B) the cable clamp. Provided at the bottom of the main body portion, a column portion for fixing the cable clamp main body portion to the substrate by inserting a tip portion into a cable clamp mounting hole for mounting a cable clamp provided on the substrate, The cable clamp body portion is for inserting the tip portion of the column portion of the other cable clamp when another cable clamp having the tip portion of the column portion similar to the tip portion of the column portion is used for extension. A cable clamp having at least one hole in the side surface of the cable clamp body. 2. The cable clamp according to claim 1, wherein as a mechanism for holding the cable, the cable is clamped and held from the edge of the opening of the tubular cable clamp body toward the bottom. A cable clamp characterized in that a slit is provided. 3. The cable clamp according to claim 2, wherein the slit includes a first slit provided at one edge of an opening of the tubular cable clamp body, and the first slit. A cable clamp, characterized in that it has a second slit, which is formed on the opposite side opposite to the provided edge, and which is paired with the first slit to sandwich and hold the cable. 4. The cable clamp according to claim 2 or 3, further comprising a cable protrusion preventing unit for preventing the cable from protruding from the slit. 5. The cable clamp according to claim 4, wherein the cable protrusion preventing means is provided with a slit from other portions at predetermined positions from the upper edges of the first slit and the second slit. A cable clamp having a portion with a narrow gap. 6. The cable clamp according to claim 1, claim 2, claim 3, claim 4 or claim 5, wherein the column portion is easily inserted into the cable clamp mounting hole. A cable clamp in which the shape of the tip of the is formed into a bullet shape. 7. The cable clamp according to claim 1, claim 2, claim 3, claim 4, claim 5 or claim 6, wherein the tubular cable clamp body is formed in a cylindrical shape. Cable clamp characterized by. 8. The cable clamp according to claim 1, claim 2, claim 3, claim 4, claim 5, claim 6 or claim 7, wherein the column portion or the tip portion of the column portion is , A cable clamp characterized by being formed of a material having high elasticity. 9. The cable clamp according to claim 1, claim 2, claim 3, claim 4, claim 5, claim 6, claim 7, or claim 8, wherein the cable clamp mounting hole of the board is provided. A cable clamp having a cable clamp removal preventing means for preventing the cable clamp from coming off.