JPH0461573B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a protective cover for communication cables, such as those for telephones, installed between utility poles.

[Conventional technology]

Conventionally, protective covers that are attached to necessary locations to protect high-voltage electric wires from coming into contact with other buildings or street trees, and joints for connecting them have been disclosed, for example, in Japanese Utility Model Publication No. 49-32160. It is described in etc.
well known.

However, protective covers for communication cables, such as those for telephones, have not been known so far.

[Problem to be solved by the invention]

Generally, communication cables for telephones and the like are supported via hanging metal fittings on support wires stretched between utility poles, so in order to cover the communication cable over a predetermined length, It needs to be large enough to accommodate support wires and hanging fittings as well as communication cables, and for this reason,
The inner diameter of the cover body becomes larger, and the connecting body for connecting the cover body must have an even larger diameter than the cover body, making installation work at heights difficult. Moreover, it is susceptible to resistance such as wind pressure during use.

Therefore, an object of the present invention is to provide a protective cover configured so that the inner diameter of the joint body is as large as possible in order to solve such conventional problems.

[Means to solve the problem]

The protective cover for communication cables of the present invention includes a cover body in which a cylindrical body of a required length is divided in the longitudinal direction and protruding pieces are provided on the outside of the divided edges, and joints that are fitted to both ends of the cover body, respectively. A connecting hole is provided at both ends of the cover body, and one joint body divides the short body in the longitudinal direction, and a gooseneck-shaped male engaging part is formed at one end of the short body. A connecting piece that is inserted into one end of the cover body is extended from the other end, and a connecting pin that is inserted into the connecting hole of the cover body is protruded from the outer circumferential surface of the connecting piece, and the other joint body has one end that is inserted into the connecting hole of the cover body. The cylindrical body, which is opened in the shape of a flap, is divided in the longitudinal direction, and protruding pieces are provided opposite to each other on the outside of the divided edges, and the protruding pieces are fixed via fixing pins. A female engaging portion to be engaged with the male engaging portion is formed inside the cylindrical end, and a connecting piece is extended from the other end of the cylindrical body in the same way as the one joint body, and the outer periphery of the connecting piece is It is constructed by protruding from the surface a connecting pin that is inserted into the connecting hole of the cover body.

[Effect]

The protective cover is integrally assembled by inserting joints into both ends of the cover main body, and if necessary, multiple pieces of the protective cover are attached to predetermined points of the communication cable by expanding the protruding pieces, so that they are adjacent to each other. It is used by engaging and connecting the male and female engaging parts.

The protective cover of the present invention used in this way is
The inner diameter of each joint that connects to both ends of the cover body is
The inner diameter of the entire protective cover is approximately the same as the inner diameter of the cover body, which is formed to the required minimum diameter, and the male and female engaging parts that connect each joint body are formed without narrowing the inner diameter. In addition to being effectively utilized, the outer diameter of the protective cover only needs to be the minimum necessary diameter, and therefore is less subject to resistance such as wind pressure.

Furthermore, the protective cover of the present invention serves as a mark during construction work and is effective in preventing accidents that may damage telephone lines.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a cover body in which a cylindrical body of a required length is divided on one side in the longitudinal direction, and protruding pieces 2, 2 are provided oppositely on the outside of the divided end edge, and connecting holes are provided at both ends in the longitudinal direction. 3 are placed at equal intervals.

Reference numerals 4 and 5 denote joint bodies that are attached to both longitudinal ends of the cover body 1, and one joint body 4 has a gooseneck shape attached to one end of a short body 6 that is divided in the longitudinal direction similarly to the cover body 1, as shown in FIG. A male engaging portion 7 is provided around the circumference, and a connecting piece 8 that is inserted into one end of the cover main body 1 is extended in a half-cylindrical shape on the other end of the short body 6, and furthermore, an outer surface of the connecting piece 8 is provided. Three connecting pins 9, which are removably engaged with the connecting hole 3, are protrudingly provided at equal intervals.

The other joint body 5 is obtained by disassembling one longitudinal side of the cylindrical body 10 with one end opening in the shape of a flap, in the same manner as the cover body 1, as shown in FIG. Projecting pieces 11, 11 are provided in a protruding manner, and through holes 12, 12 are opened by opposing the projecting pieces 11, 11, and a fixing pin 13 is removably fitted into the through holes 12, 12. Further, a female engaging portion 14 is provided with a protrusion on the inner side of the end portion of the cylindrical body 10 that is opened like a flap, and is engaged with the male engaging portion 7.
A connecting piece 15 is formed extending from the other end of the cylindrical body 10 in exactly the same way as the joint body 4, and this connecting piece 1
Three connecting pins 16 are protrudingly provided at equal intervals on the outer surface of the connecting hole 3 to be releasably engaged with the connecting hole 3.

These joint bodies 4, 5 are connected to a short body 6 and a cylindrical body 10.
Fit the respective connecting pieces 8 and 15 into both ends of the cover body 1 so that the dividing position is in line with the dividing position of the cover body, and lock each connecting pin 9 and 16 in each connecting hole 3. Possibly protective cover A
be configured.

Next, the use of the protective cover of the present invention configured as described above will be explained. In Fig. 9, a telegraph cable B is installed between utility poles C and C via a support wire D and a hanging fitting E, and a protective cover A accommodates the telegraph cable B together with the supporting wire D and the hanging fitting E. Prepare one that has an inner diameter that is possible and is formed in a yellowish color so that it stands out.

The protective cover A is arranged so that the protruding pieces 2, 2 and 11, 11 of the cover body 1 and the joint body 5 are opened outward from each other, and the dividing edges are expanded, and the support wire is attached at a predetermined point between the utility poles C, C. Place it over D to cover the telegraph cable B. In the same manner, a plurality of protective covers A are attached in parallel, and the male engaging parts 7 of the joint bodies 4 and 5 adjacent to each other are pushed into the female engaging parts 14 and engaged, and each protective cover A is integrated. to connect the
Through holes 12, 12 in protruding pieces 11, 11 of each joint body 5
Press the fixing pin 13 inserted into the protruding piece 1.
By bringing 1 and 11 into close contact with each other and fixing the joint body 5, the plurality of protective covers A are respectively fixed. In this way, by connecting the plurality of protective covers A in a line, the telegraph cable B is extended over a predetermined length, and the support wire D and the hanging metal fitting E are connected.
Both are covered and protected.

In this way, the protective cover A of the present invention is structurally simple, and the protruding pieces 2, 2 and 11, 11 provided on the cover body 1 and the joint body 5 are expanded, and the support wire D and the hanging metal fitting E are expanded. In addition, the plurality of protective covers A, which can be easily applied to the telegraph cable B and are applied over a required length, engage the male and female engaging portions 7 and 14 of the joint bodies 4 and 5 adjacent to each other. After that, the fixing pin 13 is pressed to seal the protruding pieces 2, 2, thereby making the connection simple, so that installation work at high places can be carried out safely. Furthermore, by forming the cover body A in a yellowish color as in the embodiment when it is attached, it is possible for construction workers and the like to recognize that a telegraph cable is being installed.

〔Effect of the invention〕

As described above, the protective cover for communication cables of the present invention is easy to handle and can be connected to the required length for use. Moreover, the inner and outer diameters of the joint body that connects the cover body are formed to have approximately the same diameter as the cover body, so it is not subject to unnecessary wind pressure during use, and can be used stably without shifting its position. One of the male and female engaging parts that connect the joint body is formed inside the flap-shaped opening, making it easy to fit, and the overall thickness can be formed to the minimum necessary. be.

[Brief explanation of the drawing]

The figures relate to one embodiment of the present invention, and Fig. 1 is a front view of the protective cover, Fig. 2 is a sectional view of the same, and Fig. 3 is a sectional view of the same.
The figures are an enlarged sectional view taken along the line X-X in Figure 1, Figure 4 is a perspective view of one joint body, Figure 5 is a vertical cross-sectional view of the same as above, Figure 6 is a perspective view of the other joint body, and Figure 7 is a perspective view of the other joint body. FIG. 8 is a longitudinal sectional view showing the main parts connected with the protective cover, and FIG. 9 is a diagram showing the state in use. 1...Cover body, 2, 2...Protruding piece, 3...
Connection hole, 4, 5... Joint body, 6... Short body, 7...
Male engaging portion, 8... Connection piece, 9... Connection pin, 10
... Cylindrical body, 11, 11 ... Projection piece, 13 ... Fixed pin, 14 ... Female engagement part, 15 ... Connection piece, 1
6... Connecting pin, A... Protective cover.

Claims (1)

[Claims] 1 Consists of a cover body in which a cylindrical body of a required length is divided in the longitudinal direction and protruding pieces are provided on the outside of the divided edges, and joint bodies that are fitted to both ends of the cover body, respectively. A connecting hole is opened in the body, and one joint body divides the short body in the longitudinal direction, and a gooseneck-shaped male engaging part is formed at one end of the short body, and a male engagement part is formed in the other end of the short body at one end of the cover body. A connecting piece to be inserted is extended, and a connecting pin to be inserted into the connecting hole of the cover body is protruded from the outer circumferential surface of the connecting piece, and the other joint body has a cylindrical body with one end opened in the shape of a flap in the longitudinal direction. At the same time, a protruding piece is placed on the outside of the divided edge,
The protruding piece is fixed via a fixing pin, and furthermore, a female engaging portion is formed inside the end portion of the cylindrical body which is opened in the shape of a flap, and is engaged with the male engaging portion. A protective cover for a communication cable, comprising a connecting piece extending from one end of the connecting piece in the same way as the one joint body, and a connecting pin protruding from the outer peripheral surface of the connecting piece to be inserted into the connecting hole of the cover body.