JP2551508Y2 - Cable riser for underground cable - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] This invention is designed to draw cables from the underground to the building wall when wiring from underground tracks buried underground to various buildings such as ordinary houses. The present invention relates to an underground cable rising and dropping device that can be stored and held.

[0002]

2. Description of the Related Art Various types of electric wires have been buried underground from the viewpoints of demand for aesthetics of the city, ease of maintenance and inspection, and so on. There is a drop-in line through the underground part of the building. However, even if it is possible to construct a drop-in line through the underground part when building or other large building is matched at the time of new construction, the lead-in line for various existing buildings is underground part It is extremely difficult to carry out the project due to lack of construction or underground construction.

For this reason, in the area where the underground track facility is installed, for example, for each demand destination, general house, etc. in a shopping street, after underground wiring from the underground track to the basic part of the demand destination, The cable is set up along the outer surface of the outer wall of the customer, and the cable is inserted indoors by penetrating the outer wall. The rising portion of the cable at this time is passed through a steel pipe of an appropriate diameter fixed to the wall surface and held.

[0004]

However, according to the in-steel pipe wiring method, when inserting a plurality of bundled cables, not only is there a problem in the steel pipe due to friction in the steel pipe and the like, but also there is an increase in the number of wires. In the event that replacement is required, the line work, such as replacement of the steel pipe itself, must be performed. Further, since the steel pipe itself is exposed on the outer wall surface, the appearance of the entire building may be impaired, and various colors have been required for consistency with the building and the like.

[0005] The same is true of the existing lighting poles, signposts, telephone poles, entrance poles, and CATV.
-It has also been required from the past when starting up communication cables.

Therefore, this invention has been devised in view of the above-mentioned various circumstances as described above, and is used when a variety of cables are drawn into various buildings from an underground electric wire in a standing state. In addition, the cable can be stored and held in the form of the rising part on the ground in consideration of the consistency with the wall, etc., and not only can it be easily and quickly stored, but also it can be added or replaced at a later date. It is an object of the present invention to provide an underground cable riser and drop-in device which can easily cope with the need even when it becomes necessary.

[0007]

According to the present invention, in order to achieve the above-mentioned object, the wall C of a building or the like is installed so that a cable C branched from an underground power line is drawn into a predetermined building. And an appropriate number of stages of adjustment bases 1 fixed at appropriate intervals along the direction of the start-up wiring of the wall surface W, and fixed between the adjustment bases 1 in a mounted state. And a cover lid 15 having a substantially groove-shaped cross-section, which is connected to the mounting base 10 by covering the cable C mounted on the surface of the mounting base 10. Features.

[0008] The adjustment base 1 is formed in a block shape having a height so as to be appropriately spaced from the surface of the wall surface W or the like, and includes a connection concave portion 2 and a connection protrusion 3 fitted to each other on the front and back surfaces. It can be configured such that a predetermined height from the wall surface W or the like can be set by a plurality of things being slightly forcibly fitted to each other in the front and back directions and stacked in a plurality of stages.

The mounting base 10 has a connecting groove 11 on the back surface into which the connecting protrusion 3 of the adjustment base 1 is fitted, and an engaging groove 12 on both side portions into which both side edges of the opening of the cover 15 are fitted. Further, it can be formed by perforating a band insertion hole 13 through which a cable band B for binding and fixing a cable C mounted and wired on the surface of the mounting base 10 is inserted.

The cover lid 15 is provided with the engagement groove 1 of the mounting base 10.
2 are formed on both side edges of the opening, and the engaging protrusions 16 are formed at the leading edge of each of the main body of the engaging protrusions 16 formed inwardly on both side edges of the opening. The rear surface of the main body of the engaging projection 16 has an engaging surface that is substantially perpendicular to the fitting direction. It can be formed to have a character shape.

[0011]

The underground cable rising and dropping device according to the present invention comprises a mounting base 10 fixed along a wall W or the like of a predetermined building, and a substantially groove-shaped cover connected to the mounting base 10. The lid 15 forms a lead-in riser pipeline having a through space for accommodating the cable C therein. And
By being connected to a flexible pipe (P1, P2) or the like that branches from the underground electric line and allows the line to pass in any direction, a continuous space with the underground electric line is formed.

The adjustment base 1 fixed to a wall or the like W is connected in an appropriate number of stacks in a stacking manner to cope with an outgoing rising portion from an underground electric line, a drawing portion into a building, and other conditions. A predetermined distance from the wall surface or the like W is set, and the fitting of the connecting recesses 2 and the connecting protrusions 3 formed on the front and back surfaces of the plurality of adjusting bases 1 and the adjusting base 1 and the mounting base 10 are connected. Thus, the mounting base 10 is prevented from dropping from the wall surface W or the like before mounting and fixing the mounting base 10.

The band insertion holes 13 formed in both sides of the mounting base 10 are passed through a cable band B which bundles the cables C mounted and wired on the surface of the mounting base 10, and the mounting base 10 in a state where the cables C are bundled. 10 is held.

Cover lid 15 connected to mounting base 10
The engaging projection 16 is connected to the engaging groove 12 of the mounting base 10.
Forcibly fit. The fit is
The opening itself of the cover lid 15 is forcibly expanded by forcible sliding in the fitting direction when the inclined surface of the distal end edge surface of the engaging projection 16 comes into contact with the engaging groove 12, and the opening itself is restored to its original shape. Engage firmly by using the rebound resilience.

A fixing screw 17 which is inserted from the outside of the engaging protrusion 16 of the cover lid 15 and is screwed into both sides of the mounting base 10 by penetrating the engaging protrusion 16 is adapted to prevent external impact and the like. Cover cover 15 comes off from the mounting base 10,
The cover 15 is firmly fixedly connected to the mounting base 10 without being separated.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. An adjustment base that is fixed to the wall surface W at an appropriate number of steps along the wiring path that rises to the W surface, and is formed in a block shape having a height that is appropriately spaced from the surface of the wall surface W. Have been. Adjustment base 1 in the example shown
Has a connection recess 2 having a substantially dovetail shape in cross section on the back surface of the adjustment base 1 body having a basically rectangular parallelepiped shape, and a connection protrusion 3 fitted on the connection recess 2 on the front surface. A plurality of objects are slightly forcibly fitted to each other in the front and back directions and are stacked in a plurality of stages so that a predetermined height from the wall surface W or the like can be set.

The mounting base 10 is fixedly mounted on the surface of the adjustment base 1 between the adjustment bases 1 fixed to the surface of the wall surface or the like W at appropriate intervals in the direction along the wiring path. I have. The mounting base 10 itself is formed in a strip shape having a length substantially corresponding to the rising height, is divided at appropriate intervals in the length direction if necessary, and is connected. Are prepared in advance by standardizing different lengths.

The mounting base 10 itself is mounted on the adjustment base 1.
On the back surface, there is provided a connecting groove 11 into which the connecting protrusion 3 is fitted, and an engaging groove 12 into which both side edges of an opening of a cover 15 to be described later are fitted. Band B that binds and fixes the cable C that is placed and mounted on the cable
Is formed by opening a band insertion hole 13 on the front side.

The mounting base 10 and the adjusting base 1 are provided with bolt holes 4 on both left and right sides, and are inserted together with the adjusting base 1 connected to the back surface of the mounting base 10 as shown in the figure. The mounting base 10 is laid and fixed on the surface of the wall surface or the like W by screwing the anchor bolt 6 to the anchor nut 5 embedded in the insertion wall surface or the like W. At this time, in order to connect the adjustment base 1 to the back surface of the mounting base 10, for example, as shown in the figure, the connection protrusion 3 and the connection groove 11 are each formed into a substantially dovetail shape in a cross-section where they are slightly forcibly fitted. Alternatively, one of the fitting portions is made of a hard material and the other is made of a soft material, and the fitting portions are resiliently fitted in a state where the fitting positions can be slid along the groove direction so as to match the bolt holes 4 with each other. Or something. In addition, the hard material and the soft material of the fitting portion may be separate members from the forming materials of the adjustment base 1 main body and the mounting base 10 main body.

Mounting base 1 with adjustment base 1 interposed
At the time of laying and fixing 0, after the adjustment bases 1 are fixed in advance at appropriate intervals along the rising direction with respect to the wall surface W of the building or the like, the mounting base 10 is connected and fixed to the adjustment bases 1 and further adjusted. Both the base 1 and the mounting base 10 can be screwed and fixed to the wall surface W or the like.

The connecting groove 11 of the mounting base 10 can be obtained by, for example, forming a central portion of the mounting base 10 itself in a hat shape in cross section, and forcing the mounting base 10 itself into the adjustment base 1. Like joining together
The connecting protrusion 3 has an inner dimension slightly smaller than the outer dimension of the connecting projection 3 and is joined to the adjustment base 1 fixed on the wall W or the like even if it is temporarily fixed. The engaging grooves 12 are formed along the length direction on the outer side surfaces of both sides of the mounting base 10 itself, and when the opening side edges of the cover lid 15 are fitted, even once forcibly outward. It is supposed to be expanded so as to get over it while sliding, and both side edges are fitted when restoring to the original shape after the expansion, and after fitting, the abutting of the engaging surfaces almost perpendicular to the fitting direction. Care is taken not to disengage by engagement. That is, the engaging groove 12 itself has an engaging surface substantially orthogonal to the fitting direction formed on the front surface side of the mounting base 10 and an inclined surface for expanding and guiding both side edges of the opening of the cover lid 15 also formed on the back surface side. It has an inner shape that is formed in a substantially rectangular shape in cross section.

The band insertion hole 13 is provided in the mounting base 1.
2 are pierced along the left-right direction at appropriate intervals along the longitudinal direction in the ridges protruding on the left and right sides of the front side of FIG.
As shown in FIG. 4 to FIG. 4, a cable band B surrounding the cable C placed and wired on the mounting base 10 is inserted so that the cable C can be fixedly held in a bundled state.

The both sides of the mounting base 10 having the engaging groove 12 on the outer side and the ridge on the surface side on which the cable C is mounted have a substantially F-shape as shown in FIG. The directed recessed portion becomes the engaging groove 12, and a band insertion hole 13 is formed in a portion protruding inward.

A cover 15 having a substantially groove-shaped cross section that covers the cable C is connected to the mounting base 10 having the cable C fixedly held on the surface. The cover lid 15 has a capacity of an inner size enough to accommodate the cable C to be fixed and held, and is formed in a substantially U-shaped cross section as shown in FIGS. As shown in FIG. 4, the section is formed in a substantially U-shape in cross section, and these are appropriately selected and used at the installation site.

On both side edges of the opening of the cover 15, engagement projections 16 are formed to engage with the engagement grooves 12 in the mounting base 10. That is, this engaging projection 1
As described above, both sides of the opening 6 are fitted into the engagement groove 12 so as to fit into the engagement groove 12 when it is restored to its original shape after being once expanded outward when aligned with the engagement groove 12 as described above. The front end edge surface of each of the engaging projections 16 main body formed to protrude inward at each portion is provided with an inclined surface that gradually expands toward the tip, and the rear surface side of the engaging projection 16 main body is inserted in the fitting direction. The engaging projection 16 has a substantially rectangular shape in cross section.

After the cover 15 has been connected to the mounting base 10, in order to obtain a reliable connection between the two 10, 15, in the illustrated example, the cover 15 is mounted from outside the engagement projection 16 of the cover 15. Fixing screws 17 are screwed into both sides of the base 10. The fixing screw 17 is inserted into a screw hole 18 previously drilled on both sides of the cover lid 15,
A tapping screw structure which is forcibly screwed into both sides of the mounting base 10 is scheduled, and if necessary, is firmly screwed into the both sides of the mounting base 10 together with an applied adhesive.

In order to set up the cable C from the underground cableway to the wall W of the building or the like and to support the wiring, as shown in FIGS. 5 and 6, a large number of steel pipe short pipes are connected with a universal joint structure. An embedded telescopic bendable pipe P1 connected by a joint pipe and connected to an underground electric line, and a flexible pipe P2 connected to the telescopic bendable pipe P1 and going out to the ground Are used as needed. By using such flexible pipes P1 and P2, it is possible to avoid a foundation or the like on a business trip in a building and to guide the start-up to a wall or the like W from an underground electric line.

Next, an example of use of the invented device will be described. As shown in FIGS. 5 and 6, a pull-in cable which is branched from a cable C housed in a predetermined underground electric wire and pulled in. Corresponding to C, the telescopic bendable pipe P1 is connected to the branch portion of the underground electric line. Then, the flexible tube P2 connected to the end of the flexible bendable tube P1 is interposed in accordance with the basic structure of the building and the like, so that the retractable stand including the mounting base 10 and the cover lid 15 is provided on the ground. A pipe line is connected (see FIG. 5), and a mounting base 10 and a cover lid 15 are provided at the end of a telescopic bent pipe body P1 located in the ground.
(See FIG. 6).

Next, the mounting base 10, the cover 15
When connecting and fixing the pull-in riser pipeline composed of the adjusting base 1, first, the adjusting base 1 is connected to the back surface of the mounting base 10 by aligning the bolt holes 4 thereof, and the adjusting base 1 is combined with the mounting base 10. At the time, depending on the outgoing starting part from underground, the part to be drawn into the building, and other conditions, the adjustment base 1 is combined with the wall surface W by stacking an appropriate number of stages on the wall surface W or the like. Set a predetermined interval. That is, the anchor bolts 6 penetrating both the mounting base 10 and the adjustment base 1 are screwed to the anchor nuts 5 embedded in the wall surface W or the like corresponding to the fixing portion of the mounting base 10 (FIG. 2). reference),
At this time, the connection recesses 2 and the connection protrusions 3 formed on the front and back of the adjustment base 1 itself are fitted and connected to each other in an appropriate number of stages to set a large interval with respect to the wall surface W or the like ( (See FIG. 3).

After the connection of the mounting base 10 is fixed, the start-up cable C drawn from the telescopic bendable pipe P1 or the flexible pipe P2 is placed on the surface of the mounting base 10 by wiring. The cable C surrounds the cable C and is inserted into the band insertion hole 13 by the cable band B.
Is temporarily fixed to the mounting base 10 surface.

After the cable C is fixed, the cover 15 is substantially U-shaped (see FIGS. 2 and 3) or U-shaped (see FIG. 4) in cross section with respect to the mounting base 10 so as to cover the cable C. Are forcibly fitted and connected. From the outside of the engaging projection 16 of the cover lid 15 after the fitting, a fixing screw 17 penetrating this 16 is forcibly screwed and fixed to both sides of the mounting base 10.

Thereafter, a rubber cap 20 is covered at the upper end opening of the pull-in riser pipe, and the cable C drawn from the rubber cap 20 is connected to an integrating wattmeter or the like and drawn into the building.

[0033]

[Effects of the Invention] This invention is configured as described above. Therefore, when the various cables C are drawn into the various buildings from the underground electric line and are inserted into the various buildings, the rising portion on the ground is used. Can be held tightly along the wall surface W, etc.
Further, the wiring holding operation can be easily and quickly performed without a troublesome operation of forcibly inserting the inside of the steel pipe. In addition, the cables can be stored and held in a good manner in consideration of the consistency of the wall surface of the building and the like W. Also, even if it is necessary to increase the number of wires or replace the cable at a later date, the disassembly and separation of the mounting base 10 and the cover lid 15 can be performed. This can easily be dealt with.

That is, in the present invention, a strip-shaped mounting base 10 is fixed in a mounted state between the adjustment bases 1 stacked and fixed in an appropriate number of stages along the wall surface W of the building or the like. Cable C placed on base 10
The cover lid 15 having a substantially groove shape in cross section is fitted to and connected to the mounting base 10. Unlike the conventional case, the cable C is not inserted into the steel pipe, and the wiring is held on the surface of the mounting base 10. This is because the cable C can be held by being covered with the cover 15.

The adjustment base 1 is formed in a block shape having an appropriate height, and the connecting recesses 2 formed on the front and back surfaces are provided.
Since the plurality of connecting protrusions 3 are slightly forcibly fitted to each other and stacked in a plurality of stages in the front and back directions, the holding interval from the wall surface W of the building or the like can be easily determined by the number of combinations. Can be set. for that reason,
The distance from the wall surface or the like corresponding to the outgoing rising part from the underground electric line, the drawing part into the building, and other conditions, that is, the degree of bending of the flexible pipes P1, P2, the basic structure of the building, etc. It can be adjusted arbitrarily.

The mounting base 10 which is mounted on and fixed to the adjustment base 1 has a connecting groove 11 on the back surface into which the connecting projection 3 of the adjusting base 1 is fitted. And a temporary fixing state before fixing is facilitated. In addition, since the band insertion holes 13 through which the cable bands B surrounding the cables C placed and wired on the mounting base 10 are bundled are inserted and formed, a large number of bands before the cover lid 15 covers the cable C are formed. The cable C is prevented from being scattered, and the speed of operation is ensured.

The connection between the mounting base 10 and the cover lid 15 is as follows.
Since the engagement protrusions 16 on both side edges of the opening of the cover lid 15 are forcibly slid and fitted into the engagement grooves 12 provided on both sides of the mounting base 10, the work can be easily performed. . In addition, the fitting operation is performed by forcibly sliding in the fitting direction when the inclined surface of the tip end surface of the engaging projection 16 having a substantially L-shape in overall cross section is brought into contact with the engaging groove 12. The opening 15 itself is forcibly expanded, and after overcoming the side of the engaging groove 12 in the expanded state, it is firmly engaged by utilizing the rebound of the original shape to the original shape. It can be done reliably. Further, from the outside of the engagement protrusion 16 in the cover lid 15,
In order to insert the engaging projections 16 and screw the fixing screws 17 into both sides of the mounting base 10, the mounting base 10
The cover 15 is integrated with the cover 15, so that the cover 15 does not fall off or separate from external impact or the like, and the cable C housed and held therein can be reliably held.

Further, the cable C covered by the cover 15 is securely concealed from the outside and is stored in a good shape. For example, it is unsightly even if it is installed on a front outer wall surface of a shopping street, a general house or the like. Not something. Furthermore,
In the same manner, it is of course possible to use it when starting up to existing lighting poles, signposts, telephone poles, rising up into small pillars for pull-in, and also when starting up CATV / communication cables.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part in one embodiment of the present invention.

FIG. 2 is a cross-sectional view when mounting on a wall surface or the like.

FIG. 3 is a cross-sectional view of another example of installation at the time of attachment to a wall surface or the like.

FIG. 4 is a cross-sectional view of another embodiment when it is attached to a wall surface or the like.

FIG. 5 is a schematic side sectional view partially omitted in a construction example.

FIG. 6 is a schematic side sectional view partially omitted in another construction example.

[Explanation of symbols]

C Cable B Cable band W Wall etc. P1 Telescopic bendable tube P2 Flexible tube 1 Adjustment base 2 Connection recess 3 Connection protrusion 4 Bolt hole 5 Anchor nut 6 Anchor bolt 10 Mounting base 11 Connection groove 12 Engagement groove 13 Band insertion hole 15 Cover lid 16 Engagement projection 17 Fixing screw 18 Screw hole 20 Rubber cap

Claims (5)

(57) [Scope of request for utility model registration] 1. An underground cable rising and dropping device for rising and wiring along a wall or the like of a building so that a cable branched from an underground electric line is drawn into a predetermined building. A suitable number of stages of adjustment bases fixed at appropriate intervals along the rising wiring direction, a strip-shaped mounting base fixed in a mounted state between the adjustment bases, and wiring mounting on the mounting base surface. An underground cable riser and pull-in device, comprising: a cover having a substantially groove-shaped cross-section, which is fitted to and connected to the mounting base so as to cover the placed cable. 2. The adjustment base is formed in a block shape having a height so as to be appropriately spaced from a surface such as a wall surface, and has a connection concave portion and a connection protrusion fitted to each other on the front and back surfaces. The underground cable riser according to claim 1, wherein a plurality of objects are slightly forcibly fitted to each other in the front and back directions, and a predetermined height from a wall surface or the like can be set by being stacked in a plurality of stages. Retraction device. 3. The mounting base has a connecting groove on the back surface into which the connecting protrusion of the adjustment base fits, and an engaging groove on both sides for fitting both side edges of the opening of the cover lid. An underground cable riser / retractor according to claim 1 or 2. 4. The mounting base has a band insertion hole through which a cable band for binding and fixing a cable placed and mounted on the mounting base surface is inserted.
An underground cable riser / retractor according to any one of claims 1 to 6. 5. The cover lid has engaging projections formed on both side edges of the opening to engage with the engaging grooves of the mounting base, and the engaging projections protrude inward at both side edges of the opening. An inclined surface that gradually expands toward the tip is formed on the tip edge surface of each of the formed engaging protrusion main bodies, and an engaging surface that is substantially perpendicular to the fitting direction is provided on a rear surface side of the engaging protrusion main body. The underground cable riser / drawer according to any one of claims 1 to 4, wherein the underground cable riser and drawer is formed so as to have a substantially L-shape in its entire cross section.