JPS6249304A - Anchoring device for optical cable tension member - Google Patents

Abstract

PURPOSE:To attain rigid anchorage by bending one end of a plate body by a prescribed length to form a detaining piece and inserting an anchoring plate obtained by fitting a tension member clamp attachably/detachably to a vertical plate surface into the square ports of opposed plate surfaces of a holding case so as to detain the anchoring plate like a bridge over the opposed plate surfaces. CONSTITUTION:The anchoring plate 3 inserted and detained into/on the square ports 2, 2' formed on the opposed plate surfaces of the holding case 1 is unloaded under the state that a clamp is removed from the anchoring plate 3, plural optical fiber cores drawn from the terminal of an optical cable together with a tension member A are connected, and at the end of the connecting work, the tension member A provided with a press sleeve when necessary is tightly anchored and fixed on the anchoring plate 3. Consequently, the anchoring work can be extremely simply and rapidly executed and precise and rigid anchorage can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a device for retaining a tension member at a straight connection section or a terminal connection section of an optical cable.

(Prior art) The conventional optical cable tension member retaining device has a third
As shown in the figure, between the opposing plate surfaces 12α and 12h of the holding case sphere of the optical fiber connection part, a column 10 with tension member tightening fittings 11 screwed thereon is fixed with bolts from both sides. A tension member pulled out from the end of the optical cable is tightened and fixed via a tightening fitting 11 and suspended. However, in the tension member retaining device a configured in this way, a plurality of optical fiber cores pulled out together with the tension member A from the terminal of the optical cable are connected in a straight line, or the optical fiber core wire is connected to a light receiving element, etc. When doing so, handling of the optical fiber core becomes extremely troublesome due to the supporting column 10 fixed to the opposing plate surface 12α of the holding case 12 and the building building. When the work is completed, the support 10 is bolted and fixed between the opposing plate surfaces 12α and 12b of the holding case sphere, and the tension member is tightened to the support plate 10. Although it was tightened and fixed via the mounting bracket 11, tools such as a screwdriver are not only required to remove and attach the column 1o bolted between the opposing plate surfaces 12α and 12A of the holding case 12, but also the column When a tensile force is applied to the tension member A that is tightened and fixed to the support 10 via the fastening metal fitting ■, the support 10 is held on the opposing plate surface 1212 of the case 12.
There were problems such as strong tension acting on the bolts 13 and 13 attached between the bolts 13 and 12A, which could cause damage.

(Structure of the present invention) The present invention has been made for the purpose of solving the above problems.
A retaining plate is formed by bending one end of the plate to a predetermined length to form a locking piece, and a tension member supply fitting is removably attached to the vertical plate surface, into a rectangular opening drilled on the opposite plate surface of the holding case. It is characterized in that it is fitted and locked in a bridging state between the opposing plate surfaces.

(Embodiments of the present invention) Hereinafter, embodiments of the present invention will be described with reference to the drawings. In Figs. A rectangular opening 2.2' is bored in the faces 1a, 1b.

Reference numeral 3 denotes a retaining plate formed by bending one end of a plate at a right angle to a predetermined length to form a retaining piece 4, and a tension member supply fitting 5 removably screwed to the vertical plate surface 3α. Board 3
As shown in the figure, is inserted from a rectangular opening 2 formed in the plate surface 1α of the holding case 1 to a rectangular opening 2' formed in the opposing plate surface 1b, and is held in a bridging state between the opposing plate surfaces 1α and lb. The locking piece 4 is locked to the edge of the rectangular opening 2, and is attached to the holding case 1 so as to be freely inserted into and removed from the holding case 1. In order to retain and fix the tension member A with the optical cable tension member retaining device of the present invention configured as described above, the tension member A must be inserted and locked into the rectangular openings 2.2° drilled in the opposing plate surfaces 1α and 1b of the holding case 1. The clamping plate 3 was removed from the clamping plate 3 with the tightening fittings 5 removed, and the work was completed by connecting the multiple fiber optic cables pulled out together with the tension member A from the end of the optical cable. At this point, the retaining plate 3 is held by a rectangular opening 2.2'' drilled in the opposite plate surface lα, 1b of the case 1.
The tension member A, to which a seating sleeve is attached if necessary, is tightened and fixed to the retaining plate 3 via the tightening fitting 5.

Although the above description has been made with reference to the drawings of the tension member retaining device at the straight connection portion of the optical cable, the present invention is not limited to this and may be modified as appropriate within the scope of the invention.

(Effects of the Present Invention) According to the present invention, as described above, one end of the plate is bent by a predetermined length to form the locking piece 4, and the tension member clamping fitting 5 is attached to and detached from the vertical plate surface 3α. The freely attached retaining plate 3 is inserted in a bridging state from the rectangular opening 2 formed on the plate surface 1α of the holding case 1 to the rectangular opening 2' formed on the opposing plate surface 1b, and a locking piece is formed by bending the retaining plate 3. 4 is fixed to the edge of the rectangular opening 2 and is detachably attached to the holding case 1, so that multiple optical fiber core wires pulled out from the end of the optical cable together with the tension member A can be connected. At this time, the tension member tightening fitting 5 attached to the retaining plate 3 is removed and the retaining plate 3 is removed from the holding case 1. When the connection work is completed, the retaining plate 3 is attached to the opposite plate surface of the retaining case 1. 1α
, 1b is inserted into the rectangular opening 2.2', and the tension member A can be tightened and fixed to the retaining plate 3 via the tightening fitting 5, so that the optical fiber core connection work is easy. The tension member retaining work can be performed extremely easily and quickly.Moreover, since the tension member is tightened and secured to the vertical plate surface 3α of the retaining plate 3 via the clamping fitting 5, even if a tensile force is applied to the tension member, , this tensile force acts on the side surface of the retaining plate 3, which has the highest rigidity, so
There is no fear that the retaining plate 3 will be deformed, and the tension member A can be securely and securely retained, which is an excellent advantage.

[Brief explanation of the drawing]

FIG. 1 is an explanatory view showing one embodiment of the present invention, FIG. 2 is an enlarged perspective view, and FIG. 3 is an enlarged perspective view showing a conventional optical cable tension member retaining device. 1: Holding case 2.2”: Rectangular 3: Retaining plate
4: Locking piece 5: Tension member clamp!

Claims (1)

[Claims] A retaining plate is formed by bending one end of the plate to a predetermined length to form a locking piece, and a tension member tightening fitting is removably attached to the vertical plate surface, and a rectangular opening is drilled in the opposite plate surface of the holding case. An optical cable tension member retaining device, characterized in that the optical cable tension member retaining device is fitted into and locked in a bridging state between the opposing plate surfaces.