JPH07240317A - Holder for cylindrical core - Google Patents

Abstract

PURPOSE:To provide a holder which has such a structure that an electric wire having a diameter which varies over a wide range can be firmly fixed so as to reduce the specification for the holder. CONSTITUTION:A holder 10 is constituted in such a split type that the hollow cylindrical body of the holder composed of a cylindrical peripheral wall 12 and side walls 11 having circular window sections at its center can be split into equal half bodies. Trough-like pieces 15 protruded outward from the peripheral centers of the circular window sections on the external surfaces of the side walls 11 are integrally provided to each half body with belt-like coupling pieces 14 in between. In addition, a plurality of projections 16 are provided on the internal surfaces of the pieces 15. The cylindrical holder 10 is assembled by housing split cylindrical core pieces 9 in the holder 10 and passing an electric wire 18 through the pieces 9. After closely adhering the trough-like pieces 15 to the electric wires 18 at both ends of the holder 10, the holder 10 is bound with a wire bounding band 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cylindrical core, a power line,
The present invention relates to a structure of a holder for penetrating and attaching to a signal line or the like.

[0002]

2. Description of the Related Art An example of a conventional split type holder for a tubular core is shown in FIG. 2 in a state where the split type tubular core is housed inside and assembled into a tubular shape.

The holder 1 is divided into two parts such that a hollow cylindrical body consisting of an octagonal side wall 2 having a circular window portion in the center and a peripheral wall 3 is divided into two parts along the axial direction and in the vertical part of the peripheral wall 3. One vertical peripheral wall is connected with a hinge 4, and two sets of an engaging piece 5 and a locking claw 6 are provided on the outer surface of the other vertical peripheral wall. Two pieces are provided on the horizontal portion of the peripheral wall 3 (bottom portion, one is shown). Each of the cantilever spring pieces 7 is provided, and the semi-circular window portion has two fan-shaped projecting pieces 8 having a 90-degree angle.
The structure was such that individual pieces were arranged in a circle at equal angular intervals.

The core piece 9 of the split type tubular core is housed in the holder 1 in the opened state [see FIG. 1 (a)], and the central groove and the semi-circular window portion opened in the axial direction of the core piece 9 are provided. Through the wire (not shown), as shown in FIG. 2, the holder 1
Is closed and the core piece 9 is held in a tubular shape by the spring piece 7, and the protruding piece 8 fixes the coating resin of the electric wire to the electric wire in a bite state so that the tubular core is passed through a desired portion of the electric wire. It was attached.

[0005]

The above-mentioned conventional holder is suitable for an electric wire with a limited thickness in which the protruding piece can be bitten and the holder can be closed. It was necessary to procure a large number of specifications, and in the case of a fine electric wire, the holder sometimes moved due to the shallow biting of the protrusion. Therefore, an object of the present invention is to reduce the number of specifications of the holder, which has been multi-specification depending on the core size and the thickness of the electric wire.

[0006]

[Means for Solving the Problems] Instead of a projecting piece of a semi-circular window portion of a split type holder, a gutter-shaped piece extending outward is integrally formed at the center of the semi-circular window portion on the outer surface of the side wall via a band-shaped connecting piece. A plurality of protrusions are provided on the inner surface of the gutter-shaped piece.

[0007]

The gutter-shaped piece is in contact with the electric wire from both sides, and the holder is fixed to the electric wire by binding the gutter-shaped piece over the gutter-shaped piece with the banding band.

The strip-shaped connecting piece allows the gutter-shaped piece to move freely, and makes it easy for the gutter-shaped piece to hold the electric wire.

The projection on the inner surface of the gutter-shaped piece prevents the electric wire and the gutter-shaped piece from sliding.

[0010]

EXAMPLE FIG. 1A and FIG. 1B show an example.
Will be described with reference to.

In FIG. 1A, the holder 10 is of a split type, and in the opened state, one of the core pieces 9 of the split type cylindrical core is shown.
Contains individual items.

The holder 10 has a divided cylinder composed of a side wall 11 having a semi-circular window portion at the opening edge and a peripheral wall 12 connecting the side walls 11, and both ends of the opening edge of the vertical peripheral wall are connected to the elbow 4 so as to be integrated with each other. The engaging piece 5 and the locking claw 6 are provided on the outer surface of the vertical peripheral wall on the side, and the side wall 11 has a through hole 13 which is cut out in a square shape in the lower center of the side wall and extends to the bottom portion of the peripheral wall 12. This is a structure in which a gutter-shaped piece 15 is projectingly provided at the center of the peripheral edge of the circular window portion via a strip-shaped connecting piece 14.

The strip-shaped connecting piece 14 has a length dimension of ½ or more of the radius of the semi-circular window portion (in the figure, the case is similar to the radius). When the connecting piece 14 is short, the entire length of the gutter-shaped piece cannot be adhered to a thin electric wire, so that the holder has a defect that the applicable range of the thickness of the electric wire is narrow.

The gutter-shaped piece 15 has an outwardly extending shape, and the dimension in the circumferential direction is less than the peripheral length of the semicircular window portion (about 1/2 of the peripheral length in the figure), and the gutter-like shape. Make sure that the wires can be securely held without the pieces 15 overlapping each other.
A plurality of projections (two of four are shown in the figure) are provided on the inner surface of the gutter-shaped piece 15 to increase friction with the electric wire. The protrusion 16 is not limited to the illustrated conical shape,
Any suitable shape and size may be used.

A spring piece for pressing the core piece 9 is not integrally provided in the holder 10, but a separate spring plate (shown in a state of being hooked in the concave portion of the core piece 9 in the upper part of the drawing) 17 is provided. Mounting. By press-fitting the acute corner portion of the spring plate 17 into the through hole 13, the core piece 9 can be housed in the split cylinder by slightly projecting from the opening surface of the split cylinder forming the holder 10.

FIG. 1 (b) is an explanatory view of using the holder 10. As described above, the core piece 9 is housed in the holder 10 and then passed through the electric wire 18, and the engaging piece 5 and the locking claw 6 are engaged with each other to close the holder. In the figure, the diameter of the electric wire 18 is about 1/2 of the diameter of the window portion of the holder 10, and if the electric wires 18 are passed through the center of the holder 10 and held separately, the gutter-shaped piece 1
5 is separated from the electric wire 18, as shown on the right side of the drawing. As shown on the left side of the drawing, the gutter-shaped pieces 15 are brought close to the electric wires 18 from both sides so that the gutter-shaped pieces 15 face each other, and the bundling band 19 is applied from above the gutter-shaped pieces 15. The trough-shaped piece 15 is fixed to the electric wire 18. The gutter-shaped pieces 15 are fixed to the electric wires 18 on both sides of the holder 10, and the attachment of the tubular core is completed.

As is apparent from FIG. 1B, it is possible to fix to the holder 10 from a thick electric wire in which the strip-shaped connecting piece 14 and the electric wire 18 are parallel to a thin electric wire in which the strip-shaped connecting piece 14 and the electric wire 18 are substantially orthogonal to each other. The electric wire 18 is not limited to a single case,
If the outer diameter when bundled is within the thickness range described above, the holder 10 can be firmly fixed.

[0018]

According to the present invention, since the thickness range of the electric wire to which the holder can be fixed and the cylindrical core can be attached is wider than before, the specification of the holder can be small and the unit price can be reduced. A commercially available band may be used as the bundle band, and the holder can be easily and surely fixed, and the economical effect and the quality effect can be obtained.

[Brief description of drawings]

FIG. 1A is an external perspective view showing an embodiment of a cylindrical core holder according to the present invention together with a split type cylindrical core. FIG. 1B is a front view illustrating a usage state of the holder illustrated in FIG.

FIG. 2 is an external perspective view showing a conventional example.

[Explanation of symbols]

 1, 10 Holder 2, 11 Side wall 3, 12 Peripheral wall 4 Hinge 5 Engaging piece 6 Engaging claw 7 Cantilever spring piece 8 Projecting piece 9 Core piece 13 Through hole 14 Band-like connecting piece 15 Gutter-like piece 16 Protrusion 17 Spring plate 18 wire 19 bundle band

Claims (1)

[Claims] 1. A split-type holder for a tubular core, which is obtained by bisecting a hollow tubular body composed of a tubular peripheral wall and a side wall having a circular central window portion, and a plurality of protrusions on an inner surface extending outward of the tubular body. A tubular core holder, characterized in that the gutter-shaped piece having the above is provided integrally at the center of the semicircular window portion on the outer surface of the side wall via a band-shaped connecting piece.