JPH0716531U - Underground cable riser retractor - Google Patents

Abstract

(57) [Summary] [Purpose] The rising portion of the cable drawn from the underground power line into the building is stored and retained in a clean format so that it can be easily and quickly added and replaced. [Structure] A strip plate-shaped mounting base 10 is fixed in a mounted state between adjustment bases 1 that are stacked and fixed in an appropriate number along a wall surface of a building, and a cable C is placed on the surface of the mounting base 10 by wiring. A cover lid 15 having a substantially groove shape in cross section is fitted to the mounting base 10 and connected. The fitting connection is performed by aligning the engaging projections 16 on both side edges of the opening of the cover 15 with the engaging grooves 12 on both sides of the mounting base 10 and restoring the original shape to engage after sliding and expanding in the fitting direction. To do. In addition, a band insertion hole 13 for a cable band B that bundles the cables C is formed in the mounting base 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This device is designed so that when pulling wires from underground lines buried in the ground into various buildings such as general houses, cables etc. that are started up from the ground can be stored and held on the wall surface of the building in a good appearance. The present invention relates to a cable rising and retracting device for underground cables.

[0002]

[Prior art]

 From the perspective of demanding a beautiful city and ease of maintenance and inspection, underground wiring of various electric wires is being promoted. It has been through the service line. However, it is possible to construct a service line through the underground part by matching it when building a new building or other large building, but the service line for various existing buildings is It is extremely difficult to carry out because there are no facilities or underground construction is impossible.

Therefore, in the area where the underground track facility is installed, for example, for each customer in a shopping district, general houses, etc., underground wiring is carried out from the underground track to the basic part of the customer. After that, the cable is erected along the outer surface of the outer wall of the demand destination, and the outer wall is pierced and inserted into the interior of the cable. At this time, the rising portion of the cable is passed through and held in a steel pipe having an appropriate diameter fixed to the wall surface.

[0004]

[Problems to be solved by the device]

 However, according to this steel pipe internal wire connection method, when inserting multiple bundled cables, there is not only some difficulty due to friction in the steel pipe, but also when additional wiring or replacement is required. Had to re-run the wire such as replacing the steel pipe itself. In addition, since the steel pipe itself is exposed on the outer wall surface, it may impair the aesthetics of the entire building, and various colors were required due to compatibility with the building.

[0005] Similarly, there has been a conventional demand for starting up existing lighting poles, signposts, utility poles, and pull-in small poles, as well as starting up CATV / communication cables. Is.

Therefore, the present invention has been devised in view of various existing circumstances as described above, and is used for pulling in various cables into various buildings from the underground electric line to a rising state. At the same time, not only can the cables on the ground be properly stored and held in consideration of the consistency with the wall surface, etc. It is an object of the present invention to provide a cable rising and retracting device for underground cables that can easily cope with the need for replacement.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in this invention, the cable C branched from the underground electric line is erected along the wall W of the building so that the cable C can be drawn into the predetermined building. There are a proper number of stages of the adjustment bases 1 fixed at appropriate intervals along the rising wiring direction of the wall surface W, and a strip-shaped mounting base 10 fixed in a mounted state between the adjustment bases 1. And a cover lid 15 having a substantially groove-shaped cross section, which covers the cable C placed on the surface of the mounting base 10 and is fitted and connected to the mounting base 10.

The adjustment base 1 is formed in a block shape having a height such that it is appropriately spaced from the surface of the wall surface W or the like, and has a connection recess 2 and a connection projection 3 that fit into each other on the front and back surfaces. It can be configured such that a plurality of things are fitted in the front-back direction to each other with a slight force, and a predetermined height from the wall surface W or the like can be set by stacking in a plurality of stages.

The mounting base 10 has a connecting groove 11 into which the connecting protrusion 3 of the adjusting base 1 fits, and an engaging groove 12 into which both side edges of the opening of the cover 15 are fitted, on both sides. Further, the band insertion hole 13 for inserting the cable band B for binding and fixing the cable C 2 placed on the surface of the mounting base 10 can be formed by being opened.

The cover lid 15 has engagement protrusions 16 that engage with the engagement grooves 12 of the mounting base 10 formed on both side edge portions of the opening. The engagement protrusion portions 16 are formed on both side edge portions of the opening, respectively. Each of the engaging projection 16 main bodies formed to protrude inward has an inclined surface that gradually expands toward the tip, and the rear surface side of the engaging projection 16 main body has a fitting direction. It can be formed so that it has an engaging surface that is substantially orthogonal to, and has a generally L-shaped cross section.

[0011]

[Action]

 In the cable rising and retracting device for an underground wire according to the present invention, a mounting base 10 fixed along a wall W of a predetermined building and the like, and a cover lid 15 having a substantially groove-shaped cross section connected to the mounting base 10. Forms a pull-in rising conduit having a space for accommodating the cable C therein. Then, it is connected to a flexible pipe (P1, P2) or the like that branches from the underground power line and allows the direction to freely pass, thereby forming a continuous wiring space with the underground power line.

The adjustment base 1 fixed to the wall surface W, etc. is connected in a stacked manner in an appropriate number of stages, and corresponds to the situation where the site rises from the underground power line, the site where the building is pulled in, and other conditions. The predetermined interval between the wall surface and the like W is set, and the fitting of the connecting recesses 2 and the connecting projections 3 formed on the front and back sides of the adjusting base 1 and the adjusting base 1 and the mounting base 10 are mutually performed. The connection bases 10 and 10 are prevented from falling from the wall surface W or the like before the mounting base 10 is mounted and fixed.

The band insertion holes 13 formed by punching on both sides of the mounting base 10 allow the cable band B in which the cables C mounted and wired on the surface of the mounting base 10 are bundled to be inserted, and the mounting base 10 with the cables C assembled. Hold at 10.

The cover lid 15 connected to the mounting base 10 has its engaging projection 16 forcibly fitted into the engaging groove 12 of the mounting base 10. The fitting is performed by forcibly expanding the opening itself of the cover 15 by forcibly sliding in the fitting direction when the inclined surface of the tip end edge surface of the engaging projection 16 is brought into contact with the engaging groove 12. , Restoring to its original shape Use the resilience to firmly engage.

The fixing screw 17 for inserting the engaging protrusion 16 from the outside of the engaging protrusion 16 of the cover lid 15 and screwing the engaging protrusion 16 into the both sides of the mounting base 10 is provided in response to external impact or the like. Also, the cover lid 15 is firmly fixed and connected to the mounting base 10 without being removed from the mounting base 10 and separated from the mounting base 10.

[0016]

【Example】

 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 stands for a predetermined cable C branched from an underground electric line on a wall surface W of various buildings. It is an adjustment base that is fixed to the wall W, etc. at an appropriate number of steps along the wiring path to be raised, and is formed in the shape of a block having a height that is appropriately spaced from the surface of the wall W, etc. There is. The adjustment base 1 in the illustrated example is basically a rectangular parallelepiped-shaped adjustment base 1, and a connection recess 2 having a dovetail-shaped cross section is formed on the back surface of the main body. The projection 3 is provided, and a plurality of things are 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 can be set.

The mounting bases 10 are fixed to the surface of the adjustment base 1 in a mounted state between the adjustment bases 1 which are fixed to the surface of the wall surface W such as W along the wiring path at appropriate intervals. ing. The mounting base 10 itself is formed in the shape of a strip plate having a length substantially corresponding to the rising height, and if necessary, it is divided at appropriate intervals in the length direction and is also connected. There are several types prepared in advance that are standardized by making the lengths different.

The mounting base 10 itself has a connecting groove 11 into which the connecting protrusion 3 of the adjusting base 1 fits, and an engaging groove 12 into which both side edges of an opening of a cover lid 15 described later are fitted. Is provided on both sides, and a band insertion hole 13 for inserting a cable band B for binding and fixing the cable C placed on the surface of the mounting base 10 is formed by opening on the front surface side. .

The mounting base 10 and the adjustment base 1 are provided with bolt holes 4 on both left and right sides, and are inserted together with the adjustment base 1 connected to the back surface of the mounting base 10 as shown in the drawing. By attaching the anchor bolt 6 to the anchor nut 5 embedded in the wall surface W or the like, the mounting base 10 is laid and fixed on the surface of the wall surface W or the like. At this time, in order to connect the adjustment base 1 to the rear surface of the mounting base 10, for example, as shown in the figure, the connecting projection 3 and the connecting groove 11 are formed into a substantially dovetail shape in a cross section where they are slightly forcibly fitted. Or one of the mating parts is made of a hard material and the other is made of a soft material, and the mating position is elastic so that the mating position can be slidably adjusted along the groove direction so that the bolt holes 4 are aligned with each other. It will be fitted to. 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.

When laying and fixing the mounting base 10 with the adjustment base 1 interposed, the adjustment base 1 is previously fixed to the wall surface W of the building along the rising direction at appropriate intervals, and then the adjustment base 1 is fixed. It is also possible to connect and fix the mounting base 10 to each other, or to fix both the adjusting base 1 and the mounting base 10 to the wall surface W by screws.

Further, the connecting groove 11 of the mounting base 10 is obtained, for example, by forming the central portion of the mounting base 10 itself in a hat shape in cross section, and even by forcing the mounting base 10 itself to the adjustment base 1. In order to make a fitting connection, the connection projection 3 has an inner dimension slightly smaller than the outer dimension and is joined even if it is temporarily fixed to the adjustment base 1 fixed on the wall surface W or the like. To do. The engagement groove 12 is formed along the lengthwise direction on the outer surface of both sides of the mounting base 10 itself, and when the both side edges of the opening of the cover lid 15 are fitted in, the engaging groove 12 may be forced outward once. It is assumed that both sides are fitted when the slide is opened to spread over it and restored to the original shape after the spread, and after the fitting, the engagement surfaces that are substantially orthogonal to the fitting direction contact each other. Care is taken not to disengage by engaging. That is, the engaging groove 12 itself has an engaging surface substantially orthogonal to the fitting direction 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 15 on the rear surface side. It has an internal shape that is formed in a substantially L-shape in cross section.

Further, the band insertion holes 13 are formed in the protrusions provided on both the left and right sides of the front surface of the mounting base 10 along the longitudinal direction at appropriate intervals along the left and right directions. As shown in FIG. 4, a cable band B that surrounds the cable C placed on the surface of the mounting base 10 is inserted so that the cables C can be fixed and held in a bundled state.

Both sides of the mounting base 10 having an engaging groove 12 on the outside and a ridge on the surface side on which the cable C is placed have a substantially F-shape as shown in the drawing, The dented portion that is directed serves as the engagement groove 12, and the band insertion hole 13 is opened in the portion that projects inward.

Further, a cover 15 having a substantially groove shape in a cross section covering the cable C is connected to the mounting base 10 on which the cable C is fixedly held. This cover lid 15 has a capacity of an inner size sufficient to accommodate the cable C to be fixedly held, and as shown in FIGS. 1 to 3, it is formed in a substantially U shape in cross section, As shown in Fig. 4, the cross section is formed in a substantially U shape, and these are appropriately selected and used at the installation site.

Engagement protrusions 16 are formed on both side edges of the opening of the cover lid 15 so that they can be engaged with the engagement grooves 12 of the mounting base 10. That is, as described above, the engagement protrusion 16 fits into the engagement groove 12 when it is aligned with the engagement groove 12 and once expanded to the outside and then restored to the original shape. In order to insert, the tip end edge surface of each of the engaging protrusions 16 main bodies formed to project inwardly on both side edge portions of the opening is provided with an inclined surface that expands next toward the tip. The rear surface side of the main body is provided with an engaging surface that is substantially orthogonal to the fitting direction, and the entire engaging projection 16 is substantially L-shaped in cross section.

After connecting the cover lid 15 to the mounting base 10, in order to obtain a reliable connected state between the both 10, 15, in the illustrated example, from the outside of the engaging protrusion 16 of the cover lid 15. Fixing screws 17 are screwed into both sides of the mounting base 10. The fixing screw 17 has a tapping screw structure which is inserted into the screw holes 18 which are pre-drilled on both sides of the cover lid 15 and is forcibly screwed into both sides of the mounting base 10. , And, if necessary, are screwed tightly into both sides of the mounting base 10 with glue applied.

Further, in order to raise the cable C from the underground electric line to the wall surface W of the building and support the wiring, as shown in FIGS. 5 and 6, a large number of short pipes made of steel pipe have a universal joint structure. A buried flexible telescopic pipe P1 that is connected by a joint pipe and is connected to an underground electric line, and a flexible pipe that is connected to the telescopic flexible pipe P1 and goes out to the ground. P2 is concatenated and used as needed. By using such flexible pipes P1 and P2, it is possible to avoid the foundation that is on a business trip in the building and to guide from the underground electric line to the wall surface W or the like.

Next, an example of the use of the device of the present invention will be described. As shown in FIGS. 5 and 6, a cable for branching from a cable C housed in a certain underground power line is drawn in. Corresponding to the cable C, the flexible bending pipe body P1 is connected to the branch portion of the underground electric line. Then, depending on the basic structure of the building and the like, the flexible pipe P2 connected to the end portion of the flexible bending pipe P1 is interposed so that the pull-up start-up including the mounting base 10 and the cover lid 15 on the ground. Connect the pipes (see Fig. 5), or directly connect the retractable rising pipes consisting of the mounting base 10 and the cover lid 15 to the end of the expandable bending pipe P1 located in the ground. (See FIG. 6).

Next, when connecting and fixing the pull-in rising pipe line composed of the mounting base 10 and the cover lid 15, first, the adjustment base 1 is combined and connected to the back surface of the mounting base 10 by aligning their bolt holes 4. When the adjustment base 1 is combined with the mounting base 10, the adjustment base 1 may be attached to the wall surface W or the like depending on the position where the body is raised from the ground, the position where the adjustment base 1 is pulled into the building, and other conditions. A predetermined distance from the wall surface W is set by combining a suitable number of layers in a stack. In other words, the anchor bolt 6 which penetrates both the mounting base 10 and the adjustment base 1 is screwed to the anchor nut 5 embedded in the wall surface W corresponding to the fixed portion of the mounting base 10 (Fig. 2), at this time, the connection recesses 2 and the connection projections 3 formed on the front and back of the adjustment base 1 are fitted to each other, and the adjustment bases 1 are stacked in an appropriate number of stages to form a gap with respect to the wall surface W. Is set to a large value (see FIG. 3).

After the attachment base 10 is connected and fixed, the cable C for rising pulled out from the expandable bending pipe P1 or the flexible pipe P2 is placed on the surface of the attachment base 10 by wiring. Next, the cable C is surrounded, and the cable C is temporarily fixed to the surface of the mounting base 10 by the cable band B inserted through the band insertion hole 13.

After fixing the cable C, a cover lid that 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. Forcibly fit and connect 15 together. From the outside of the engaging projection 16 of the cover lid 15 after fitting, a fixing screw 17 inserted through the engaging projection 16 is forcibly screwed and fixed to both sides of the mounting base 10.

After that, the rubber cap 20 is capped on the upper end opening of the pull-up start-up pipeline, and the cable C pulled out from this rubber cap 20 is connected to an integrating wattmeter or the like and pulled into the building.

[0033]

[Effect of device]

 The present invention is configured as described above, and therefore, when various cables C are drawn into various buildings from the underground electric line in a rising state, the rising parts on the ground are covered by wall surfaces W The wire can be held in close contact with the wire, and the work of holding the wire can be performed easily and quickly without the need for the troublesome work of forcing it through the steel pipe. In addition, the cable can be stored and held in a good appearance in consideration of the compatibility of the building wall surface W, etc. In addition, even if it is necessary to increase or replace the cable at a later date, the disassembling of the mounting base 10 and the cover lid 15 Separation makes it easy to deal with this.

That is, in this invention, the strip-shaped mounting bases 10 are fixed in a mounted state between the adjustment bases 1 that are stacked and fixed in an appropriate number of stages along the wall surface W of the building in this invention. This is because the cover 15 having a substantially groove-shaped cross section that covers the cable C placed on the surface of the mounting base 10 is fitted and connected to the mounting base 10, and unlike the conventional case, the cable C is not inserted into the steel pipe. In addition, the exposed cable C, which is held by wiring on the surface of the mounting base 10, can be held by being covered with the cover 15.

Further, the adjustment base 1 is formed in a block shape having an appropriate height, and the connection recesses 2 and the connection protrusions 3 formed on the front and back surfaces are slightly forcibly fitted to each other, so that the adjustment base 1 is directed in the front and back directions. Since a plurality of items are stacked in a plurality of steps, the holding interval from the wall W of the building, etc. can be easily set by the number of combinations. Therefore, the wall surface etc. corresponding to the location of going up from the underground power line, the location of the lead-in into the building, etc., that is, the bending of the flexible pipes P1, P2, the basic structure of the building, etc. The interval between and can be adjusted arbitrarily.

The mounting base 10 mounted on and fixed to the adjustment base 1 has a connection groove 11 on the back surface into which the connection protrusion 3 of the adjustment base 1 fits. Can be combined to facilitate the temporary fixing state before fixing. Moreover, since the band insertion hole 13 for inserting the cable band B surrounding the cable C, which is placed on the surface of the mounting base 10 in a bundled state, is formed by opening, and is covered by the cover lid 15. The large number of cables C used in the past are prevented from being scattered and the speed of work is ensured.

The connection between the mounting base 10 and the cover lid 15 is performed by forcibly sliding the engaging projections 16 on both side edges of the opening of the cover lid 15 into the engaging grooves 12 provided on both sides of the mounting base 10. Since they are fitted together, the work can be done easily. Moreover, the fitting work is covered by the forced sliding in the fitting direction when the inclined surface of the tip edge surface of the engaging projection 16 which has a generally L-shaped cross section is brought into contact with the engaging groove 12. The opening itself of the lid 15 is forcibly expanded, and in the expanded state, after overcoming the side portion of the engagement groove 12, it is firmly engaged by utilizing the restitution resilience to its original shape. The formula is simple and reliable. Further, in order to insert the engaging projection 16 from the outside of the engaging projection 16 in the cover lid 15 and screw the fixing screws 17 into both sides of the mounting base 10, the mounting base 10 and the covering lid 15 are inserted. Since the cover lid 15 does not fall off or separate from an external impact or the like, the cable C housed and held inside can be reliably held.

Further, the cable C covered by the cover lid 15 is surely concealed from the outside and is housed in a good appearance. For example, even if the cable C is installed on the front outer wall surface of a shopping street, a general house, etc. There is no such thing. In addition, it can be used in the same way when starting up existing lighting poles, signposts, utility poles, standing up to small poles for entry, or standing up CATV / communication cables.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts in an embodiment of the present invention.

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

FIG. 3 is a transverse cross-sectional view of another installation example when mounting on a wall surface or the like.

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

FIG. 5 is a schematic side cross-sectional view with a part omitted in a construction example.

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

[Explanation of symbols]

C cable B cable band W wall surface, etc. P1 expandable / contractible pipe P2 flexible pipe 1 adjustment base 2 connecting recess 3 connecting protrusion 4 bolt hole 5 anchor nut 6 anchor bolt 10 mounting base 11 connecting groove 12 engaging groove 13 Band insertion hole 15 Cover lid 16 Engagement protrusion 17 Fixing screw 18 Screw hole 20 Rubber cap

Claims (5)

[Scope of utility model registration request] 1. A cable rising and retracting device for an underground wire, which rises and wires along a wall surface or the like of a building so that a cable branched from an underground electric line can be led into a predetermined building. The appropriate number of stages of adjustment bases are fixed at appropriate intervals along the wiring direction, the strip plate-shaped mounting bases are fixed between the adjustment bases in the mounted state, and the wirings are mounted on the surface of the mounting bases. A cable rising and retracting device for an underground wire, comprising: a cover with a substantially groove-shaped cross section that is fitted and connected to a mounting base to cover the placed cable. 2. The adjustment base is formed in a block shape having a height that allows it to be appropriately spaced from a surface such as a wall surface, and has a connection concave portion and a connection protrusion portion that fit into each other on the front and back surfaces. A plurality of cables are 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 stacking the cables in a plurality of stages so that the underground cable cable rises. Retractor. 3. The mounting base is formed with a connecting groove into which the connecting projection of the adjusting base fits, and an engaging groove into which both side edges of the opening of the cover are fitted, on both sides. A cable rising and retracting device for an underground cable according to claim 1 or 2. 4. The mounting base is provided with a band insertion hole for inserting a cable band for binding and fixing a cable placed on the surface of the mounting base.
Underground cable riser retractor according to any one of 1. 5. The cover lid has engagement protrusions formed on both side edges of the opening for engaging with engagement grooves of the mounting base, and the engagement protrusions project inwardly on both side edge portions of the opening. An inclined surface that gradually expands toward the tip is formed on the tip edge surface of each formed engagement projection body, and the rear surface side of the engagement projection body is an engagement surface that is substantially orthogonal to the fitting direction. The cable rising / pulling-in device for an underground cable according to any one of claims 1 to 4, wherein the cable rising / pulling-in device is formed so as to have a generally L-shaped cross section as a whole.