JPH0723937Y2 - Holder for tubular core - Google Patents

Description

[Detailed Description of Device] a. OBJECT OF THE INVENTION [Industrial field of application] The present invention relates to a structure of a cylindrical core holder used for a noise-preventing split type cylindrical core provided so as to penetrate a signal line of an electronic device or the like.

[Conventional technology]

As shown in FIG. 5, a conventional cylindrical core holder (hereinafter referred to as a holder) for fixing a noise-preventing tubular core penetrating a signal line to the signal line has a tubular peripheral wall 2 and a central portion as shown in FIG. A divided hollow cylindrical body 7 which is composed of side walls 3 at both ends of a peripheral wall having a circular window 4 formed therein and can accommodate a cylindrical core therein can be opened and closed while leaving a part of the peripheral wall 2 as a hinge portion 5 thinly. As described above, an engaging piece 8 and a locking claw 9 that engage with each other are provided on the outer surface of the peripheral wall 2 that is divided into two substantially equal parts, and the window portion 4 of the side wall 3 that is divided into a semicircular shape together with the peripheral wall 2 is provided. In the structure, a plurality of projecting pieces 15 projecting toward the center of the circular window portion 4 are provided on the inner peripheral surface.

Into this holder, a cylindrical core (not shown in FIG. 5 which is a split type consisting of two equally-divided core pieces) which penetrates the signal line is inserted, and the holder is covered and closed. Engaging piece 8
By engaging the locking claw 9 with
All of 15 were pressed against the signal line or were bitten into the insulating coating of the signal line to fix the tubular core to the signal line together with the holder.

[Problems to be solved by the device]

Since the conventional holder can be applied only to the signal line having a small size range equal to or larger than the outer diameter size with which all of the projecting pieces 15 provided in the window portion 4 come into contact, the size of the cylindrical core and the thickness of the signal line are large. There was a problem that many kinds of holders had to be prepared by combining with.

Further, when the conventional holder is intentionally used for a thin signal wire outside the applicable range, a bundle band is provided on the outside of both side walls 3 of the holder.
It is necessary to attach the signal line so that it is larger than the window part of the holder and fix it in the axial direction of the signal line. Moreover, depending on this, the holder and the tubular core cannot be fixed in the circumferential direction of the signal line. There was also a problem.

The present invention is intended to solve this problem and provide a holder for a cylindrical core which can be applied to a signal line having a diameter within a predetermined range with one type of holder and which can be applied in a wider range.

B. DISCLOSURE OF THE INVENTION [Means for Solving the Problems] The present invention is a hollow cylinder having a cylindrical core and a cylindrical core inside and a side wall at both ends of the peripheral wall with a circular window formed in the center. The body is formed such that a part of the peripheral wall is openably and closably formed into a thin hinge to divide the body into two substantially equal parts, and an engaging piece and a locking claw that engage with each other are provided on the outer surfaces of the divided peripheral walls facing each other. In the holder for a tubular core, the J-shaped holder is formed along the inner surface of the divided side wall, further exposed from the window portion, extends toward the center of the window portion, and is bent and folded back to the inside of the window portion. A holder for a cylindrical core, wherein a plurality of supporting springs are provided on the side wall.

[Action]

The support spring elastically contacts the signal line to fix the holder provided with the support spring, and the cylindrical core housed in the holder and the signal line. That is, the portion exposed from the window of the support spring is elastically interposed between the signal line and the central hole of the cylindrical core to support the signal line in the center hole of the cylindrical core. For thicker signal lines that are slightly smaller than the diameter of the window on the side wall, the support spring fixes the signal line in a slightly curved shape with the bent portion extending, and for thin signal lines, it is a divided holder. When is closed, the signal lines slightly larger in diameter than the facing interval formed by the plurality of support springs are pressed and fixed. Thus, the application to the diameter of the signal line that can be fixed by a kind of holder is expanded.

〔Example〕

Hereinafter, details of an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an external perspective view showing a state in which a holder according to an embodiment of the present invention is opened. Hollow formed by octagonal cylindrical peripheral wall 2 made of insulating resin having high elasticity and side walls 3 at both ends of peripheral wall 2 having circular window 4 corresponding to the central hole of the cylindrical core in the central portion The tubular body is divided into approximately two equal parts while leaving a part of the peripheral wall 2 as the hinge part 5 thin, and the equally divided core piece 6 (second
A cylindrical core holder (hereinafter referred to as a holder) 1 is formed by integrally forming two divided hollow cylindrical bodies (hereinafter referred to as divided cylindrical bodies) 7 capable of accommodating (see the drawing). In FIG. 1, the depth of the split cylindrical body 7 on the left side is slightly smaller than that on the right side. An engaging piece 8 having an engaging hole 81 is provided on one side (left side in the figure) of the divided peripheral wall 2 opposite to the hinge part 5, and a locking claw 9 is provided on the other side (right side in the figure). There is.

The divided cylindrical body 7 is fixed along the inner surface of each side wall 3 by bonding or semi-embedded, and is exposed from the inner peripheral edge of the window portion 4 and extends along the center direction of the semicircle of the window portion 4, (For example, when the diameter of the window portion 4 is about 13 mm, the length from the inner peripheral surface of the window portion 4 is about 4 mm), the J-shaped support spring 10 is bent and folded back inside the split cylindrical body 7. Are provided in two places. In other words, the support spring 10 includes a base portion 11 extending along the inner surface of the side wall 3 and a folding portion 12 that bends and returns to the inside.
The free end surface of the folded-back portion 12 is at a position substantially corresponding to the inner peripheral surface of the window portion 4.

2 and 3 respectively show the holder 1 of FIG. 1 with a thin signal wire 13 (for example, in the case where the window portion 4 has a diameter of 13 mm, a signal wire having a diameter of about 5 mm with respect to the diameter of the applicable signal wire of 10 mm in the past). )
FIG. 3 is an external perspective view showing a state applied to the above, and a sectional view taken along the line AA.

In the case of this holder 1, the core piece 6 is pressed while the folded portion 12 (see FIG. 3) of the support spring 10 is elastically contacted with the side surface of the core piece 6, and the core piece 6 is housed in each of the divided cylindrical bodies 7. Support spring
The folded-back portion 12 of the core piece 6 is disengaged from the side surface of the core piece 6 and its free end surface abuts the inner surface of the central hole of the core piece 6 as shown in FIG. Prevent the dropout of 6. Next, as shown in FIG. 2, the signal wire 13 is placed on the support spring 10 of the lower split cylindrical body 7 at the position where the tubular core is to be fixed, and the upper split cylindrical body 7 is covered to close the engagement piece. 8
And the engaging claw 9 are engaged. By doing so, the support spring 10 of the upper split cylinder 7 elastically contacts the signal line 13, and the signal line 13 is supported in cooperation with the support spring 10 of the lower split cylinder 7 to support the signal line 13. The tubular core can be securely fixed to the. In this case, the diameter of the signal line 13 is the same as that of the split cylindrical body 7 of the holder 1.
When they are closed, they can be fixed to a diameter slightly larger than the facing interval formed by the plurality of support springs 10.

FIG. 4 shows the holder 1 having a large diameter (for example, the diameter 13 of the window portion 13).
In the case of mm, it is a cross-sectional view taken along the line AA showing a state applied to the signal line 14 having a diameter of 10 mm). When the holder 1 accommodating the core piece 6 is attached to the signal line 14 in the same manner as described in FIG. 2, the supporting spring 10 has the folded portion 12 extending to the central portion of the core piece 6 as shown in FIG. , The base portion 11 is also deformed to be pushed down toward the center of the core piece 6, and the bent portion extends and slightly supports the signal line 14 to elastically support the core piece 6 and the signal line 14. Securely fix each other.

Thus, according to the present holder 1 , from the thick signal line having a diameter slightly smaller than the diameter of the window portion 4 of the holder 1 to the signal line having a diameter slightly thicker than the interval formed by the supporting springs 10 facing each other. It is possible to securely fix, and the range of the diameter of the signal line that can be fixed with a kind of holder is greatly expanded.

C. Effects of the Invention [Effects of the Invention] As described in detail above, according to the present invention, a wide range from a signal line with a diameter slightly smaller than the diameter of the window of the holder to a thin signal line with which all of the support springs are elastically contacted. It is possible to provide a holder for a cylindrical core that can be applied to a signal wire with a diameter of 10 mm, which has an expanded range of application, and it is sufficient to have a holder of a type that can accommodate various dimensions of the cylindrical core. It is possible to provide an economical holder for a tubular core that can be reduced.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a state in which a holder according to an embodiment of the present invention is opened. 2 is an external perspective view showing a state in which the holder in FIG. 1 is applied to a thin signal line. Figure 3 shows the second
Sectional drawing by the AA line in a figure. FIG. 4 is a sectional view taken along line AA of FIG. 2 in a state where the holder in FIG. 1 is applied to a thick signal line. FIG. 5 is an external perspective view showing a state in which a conventional holder is opened. 1 ... Holder, 2 ... Peripheral wall, 3 ... Side wall, 4 ... Window part, 5 ... Hinge part, 6 ... Core piece, 7 ... Divided hollow cylinder (divided cylinder), 8 ...
Engaging pieces, 9 ... Locking claws, 10 ... Support springs, 11 ... Base portions, 12 ... Folding portions, 13, 14 ... Signal lines, 15 ... Projecting pieces, 81 ... Engaging holes.

Claims (1)

[Scope of utility model registration request] 1. A hollow cylindrical body having a cylindrical core and a side wall at both ends of the peripheral wall having a circular window portion formed in the center thereof, the hollow cylindrical body having a cylindrical core housed therein. In a holder for a tubular core, the portion is formed into a thin hinge and is divided into two substantially equal parts, and engaging pieces and locking claws that engage with each other are provided on the outer surfaces of the divided peripheral walls facing each other. A plurality of J-shaped supporting springs, which are exposed from the window portion and extend toward the center of the window portion, and which are bent and folded back to the inside of the window portion, are provided along the inner surface of the side wall. A cylindrical core holder characterized by being provided.