JP3903318B2 - Cable support insert fixture and mounting method - Google Patents

Description

  The present invention relates to a cable support insert fixture and a fixture mounting method that are used in a state in which a temporary nail is passed through a cable support insert.

  In recent years, with the widespread use of the Internet, most of the cable support work in construction of condominiums and the like has low-current indoor wiring, as well as low-current electric wires (TV hearing aids, LAN cables) wired in each room. Accordingly, the number of cable supports tends to increase. The number of inserts used as cable supports is approximately 50 to 100 per ordinary apartment.

  The construction procedure for this insert is to fix the concrete formwork in advance with a temporary nail, place the concrete and harden it, remove the concrete formwork, remove the temporary nail from the insert, and then connect the cable It is a procedure.

  As shown in FIG. 12, the generally used insert is one in which a binding tool 30 is passed through an insertion hole 13 of a support portion 11 provided in the center of the insert 10 and the cable P is fixed by the binding tool 30. Are known. As shown in FIG. 9, when the insert 10 is fixed to the upper surface of the slab mold R forming the slab Q, the insert 10 is temporarily fixed by passing through the temporary fixing nails 20. After removing the slab form R, the temporary nail 20 is cut and removed from a predetermined position as shown in FIG. 10, or the temporary nail 20 is removed from the predetermined position as shown in FIG. As shown, the cable 30 is supported by inserting the binding tool 30 through the insertion hole 13 penetrating the side surface of the support portion 11. The cable support insert of this shape is now known as a general insert 10 among contractors, and is one of the most frequently used existing inserts 10.

  On the other hand, Patent Document 1 discloses an insert for supporting a cable, which is an improvement of the general insert as described above. This insert is designed so that a plurality of cables can be connected side by side to one insert. That is, it has a mother body embedded in the lower surface of the slab and a cable support portion connected to the mother body from below, and supports a plurality of cables side by side between the cable support portion and the mother body. The mother body is provided with a pair of left and right recesses on the lower surface, and a cable support portion is fitted into and connected to the recesses. The cable support part is formed with a substantially horizontal cable support surface so that a plurality of cables can be placed side by side. And in patent document 1, when fixing an insert to a formwork, two temporary nail | claws are used.

On the other hand, Patent Document 2 discloses an insert for supporting a cable having a structure in which the temporary nail of the insert can be easily separated. According to Patent Document 2, the thickness of the nail seat that receives the temporary nail is not broken by the impact when driving the temporary nail, and is deformed by the pulling force of the temporary nail to allow passage of the nail head. In this way, the nail seat is formed with a slit communicating with the nail insertion hole.
No. 7-27780 Japanese Utility Model Publication No. 7-38435

  The commonly used insert shown in FIG. 12 cuts and removes the temporary nail 20 from a predetermined position as shown in FIG. 10, or removes the temporary nail 20 in a predetermined position as shown in FIG. It is necessary to remove from the work. However, the work of removing one temporary nail from 50 to 100 inserts per room in a condominium room is also a work at a high place such as a stepladder, which is extremely dangerous and troublesome. . Moreover, it is necessary to safely dispose the temporary nail 20 after the removal.

  According to the cable support insert described in Patent Document 1, two temporary pegs are required when fixing the insert to the formwork. Therefore, after removing the formwork, the two temporary pawls are removed, so that the operation must be extremely complicated. Moreover, in Patent Document 1, since the tip of the temporary nail is removed with a tool such as pliers, the removal operation is more difficult. Further, in Patent Document 1, if the tip of the temporary nail does not hinder the work, the temporary nail is also planned to be left as it is, but the danger of the protruding nail is not eliminated, A slightly protruding nail tip can cause an unexpected accident. In Cited Document 1, the number of cables that can be held by the cable support unit is limited to two or three by adopting the cable support unit having a structure for holding the cable, and it is difficult to cope with an increase or decrease in the number of cables. It has a structure.

  On the other hand, in the insert described in Patent Document 2, the removal of the temporary nail is facilitated by providing a nail seat that makes it easy to pull out the temporary nail. However, the removal work at a high place is not different from the conventional one, and there is a danger in the work of removing one by one manually.

  Moreover, in these Patent Documents 1 and 2, even if it can be used for a new construction, it is impossible to use an existing cable support insert because of its structure. However, it may be necessary to add a weak current wire even after the conventional insert is installed. In this case, along with the installation direction of the existing insert, in order to add a weak current wire to the post-construction, it is limited to means for attaching and wiring an adhesive cable support on the lower surface of the slab.

  As described above, in the conventional cable support using the insert, the removal of the temporary nail is a dangerous and troublesome operation. Moreover, the conventional cable support which supports a cable using an insert cannot also add a cable using the already installed insert.

  Therefore, the present invention was created to solve the above-mentioned problems, eliminates the need for removing the temporary nail from the cable support insert, and also allows an additional cable to be added using the existing insert. Therefore, the present invention is to provide a fixture for a cable support insert and a method for attaching the fixture that realize an extremely safe and simple attachment operation.

According to a first means of the present invention, in a cable connecting fixture to be attached to a cable supporting insert 10 embedded in a lower surface of a slab, the insert 10 is temporarily fixed to a slab form with a temporary nail 20. The insert 10 has a protrusion-like support portion 11 that hangs downward from the center of the insert 10, and is fixed to the slab form R by the provision of a temporary nail 20 along the longitudinal direction of the support portion 11. A removal port 12 is formed along the support portion 11 so that the temporary nail 20 can be removed after the slab form R is removed, and the upper portion of the support portion 11 is laterally passed through the string-like binding tool 30. The insert 10 is provided with an insertion hole 13, while the fixture is connected to a connecting body 1 that is locked to the insertion hole 13 of the insert 10 support 11 and a cable P that is provided vertically below the connecting body 1. And a support 2 to be supported. Is, the insertion opening 3 which allowed to insertion of the connecting member 1 and the support 2 and the Karitomekugi 20 provided is to surround the tip of Karitomekugi 20 projecting from the lower surface the insert 10 in the support 2.

  In the second means, the support 2 includes a pair of left and right protective rods 2A extending along both longitudinal sides of the temporary nail 20 and a locking rod 2B that connects the lower ends of the protective rod 2A to each other. It consists of

  In the third means, the support 2 is provided in a substantially cylindrical shape surrounding the periphery of the temporary nail 20.

In the fourth means, a cable connecting latch 4 is provided substantially horizontally between the fixture connecting body 1 and the support 2, and a cable connecting bundling tool 30 is fixed to the latch 4. When the locking body 4 is inclined, the longitudinal both ends of the locking body 4 are provided so as to contact the lower surface of the insert 10 and the lower surface of the slab Q.

The fifth means has a projecting support portion 11 that hangs downward from the center of the insert 10, and the temporary nail 20 penetrates along the longitudinal direction of the support portion 11, thereby allowing the slab form frame R to pass. A removal port 12 is formed along the support portion 11 that is fixed and allows the temporary nail 20 to be removed after the slab form R is removed. In a mounting device mounting method for mounting a mounting tool for connecting a cable P to a cable support insert 10 provided with a through hole 13 to be inserted, a connecting body 1 that is locked to the insertion hole 13, and the connecting body 1. A support body 2 that is provided vertically below and supports the cable P and an insertion port 3 through which the temporary nail 20 is inserted are provided in the fixture, and the fixture nail 20 remains after the slab mold R is removed. The temporary nail 20 is surrounded by the temporary nail 20 through the insertion port 3 of And means for object eliminate mounting the fixture to the support portion 11 as.

  According to the fixture and the mounting method of the present invention, the support 2 surrounding the tip of the temporary nail 20 protruding from the lower surface of the insert 10 and the insertion port 3 through which the temporary nail 20 is inserted are provided in the connecting body 1. Thus, the temporary nail 20 can be mounted from the insert 10 without being removed. Accordingly, it is no longer necessary to remove the temporary nail 20 at a high place, which has been required so far, and it is possible to mount the fixture of the present invention extremely safely and easily.

  Further, the support body 2 is either the support body 2 made of the protective rod 2A and the locking rod 2B or the support body 2 provided in a substantially cylindrical shape, and the temporary nail 20 is provided inside the protective rod 2A. Since it hold | maintains so that it may wrap, an operator can work safely, without touching the front-end | tip of the temporary nail | claw 20.

  Further, by providing the attachment body with a locking body 4 for connecting the cable P, and attaching an appropriate number of binding tools 30 to the locking body 4, the cable P can be increased. In addition, when the locking body 4 is tilted, the both longitudinal ends of the locking body 4 are provided so as to contact the lower surface of the insert 10 and the lower surface of the slab Q, so that the tilt of the locking body 4 is not increased. .

  On the other hand, the insert 10 is fixed to the slab mold R when the temporary nail 20 penetrates along the longitudinal direction of the support portion 11, and a removal port for removing the temporary nail 20 after the slab mold R is removed. 12 is formed along the support portion 11, and the insert 10 having the insertion hole 13 penetrating the upper portion of the support portion 11 in the lateral direction and intersecting the removal port 12 is used. One of the inserted inserts 10 can be used. As a result, it can be used extremely rationally, and the already installed insert 10 can be used as it is.

  According to the present invention, the connecting body 1 connected to the insertion hole 13 of the insert 10 support portion 11, and the support that is provided vertically below the connecting body 1 and surrounds the distal end portion of the temporary pawl 20 protruding from the lower surface of the insert 10. It consists of a body 2. The connection body 1 and the support body 2 are provided with an insertion port 3 through which the temporary nail 20 is inserted, and the cable P is connected to the binding tool 30 attached to the support body 2. A fixing body 4 for connecting the cable P is provided on the fixture, and an appropriate number of binding tools 30 are attached to the locking body 4. As a result, we succeeded in realizing extremely safe and simple mounting work.

  The fixture of the present invention is a fixture that is connected to the support portion 11 of the insert 10 embedded in the lower surface of the slab Q. The connection body 1 that is connected to the support portion 11 and the support body that is provided at the lower end of the connection body 1. 2 (see FIG. 1).

  That is, the connection body 1 of the present invention has a structure that connects to the insertion hole 13 provided in the support portion 11 of the insert 10. The illustrated connecting body 1 is composed of a feeding rod 1A and a locking claw 1B (see FIG. 2). The feeding rod 1A is provided with an insertion port 3 through which the temporary pawl 20 is inserted so that the feeding rod 1A can be inserted into the removal port 12 from below the removal port 12 with the temporary pawl 20 left. The support body 2 is fixed to the lower end portion of the fitting 1A. On the other hand, the locking claw 1B is a portion that is provided at the upper end portion of the feeding rod 1A and is locked from the inside of the removal port 12 to the insertion hole 13 of the support portion 11 (see FIG. 3).

  The illustrated feeding rod 1A is provided with an adjustment slit 1C so that the width of the feeding rod 1A can be varied inside the removal port 12 (see FIG. 1). Then, the latching claws 1B are provided so as to protrude from the upper end portions of the feeding rod 1A. When the latching claws 1B are inserted into the removal port 12, the feeding rod 1A in the removal port 12 is adjusted. It is provided so as to be bent by the action of the slit 1C (not shown). Further, when the locking claw 1B in the removal port 12 reaches the insertion hole 13, the feeding claw 1A returns to the base width by the elasticity of the feeding claw 1A itself, and the locking claw 1B is inserted accordingly. Locks into the hole 13 (see FIG. 3). Moreover, the coupling body 1 can also be provided so that the latching claws 1B face each other as shown in FIG. 8 (see FIG. 8A). According to this connection body 1, it latches to the insertion hole 13 from the outer side of the support part 11 (refer the same figure (b)).

  The support 2 is a member that supports the cable P. The support body 2 is provided vertically below the connection body 1, and an insertion port 3 continuing from the connection body 1 is provided continuously. And it comprises so that the front-end | tip part of the temporary nail | claw 20 which protrudes from the insert 10 lower surface may be enclosed (refer FIG. 3).

The support 2 shown in FIGS. 3 and 6 includes a pair of left and right protective rods 2A extending along both longitudinal sides of the temporary nail 20, and a locking rod 2B for connecting the lower ends of the protective rod 2A to each other. Consists of. According to such a support 2, the temporary nail 20 is held inside the protective rod 2 </ b> A. A binding tool 30 is attached to the support 2 in advance, and the cable P can be fixed to the binding tool 30 (see FIGS. 4 and 5).

  The support 2 shown in FIG. 7 is provided in a substantially cylindrical shape that surrounds the periphery of the temporary nail 20. The cylindrical inner side is continuous from the insertion port 3 provided in the connecting body 1 (see FIG. 5A). According to this support body 2, it will be in the state which the circumference | surroundings of the front-end | tip of the temporary nail | claw 20 are completely wrapped (refer the same figure (b)).

  The locking body 4 is a member for connecting the cable P, and an appropriate number of binding tools 30 are attached to the locking body 4. The illustrated locking body 4 is provided substantially horizontally between the coupling body 1 and the support body 2 and is provided with a cutout groove 4A for fixing the binding tool 30 (see FIG. 1). Moreover, the binding tool 30 can support the cable P in a well-balanced manner by arranging it evenly on both sides of the locking body 4. At this time, the locking body 4 is installed at a position close to the lower surface of the insert 10 (see FIG. 3). This is to prevent the inclination of the locking body 4 from expanding when the locking body 4 is tilted so that both longitudinal end portions of the locking body 4 are in contact with the lower surface of the insert 10 or the lower surface of the slab Q. . The illustrated locking body 4 has a rectangular plate shape, but can be freely changed to other shapes such as a circular shape, a polygonal shape, or a rod shape.

  The insert 10 to which the connecting body 1 is connected utilizes the conventionally used insert 10 shown in FIGS. 9 to 12, and has the following structure in particular. For example, a protrusion-like support portion 11 is suspended from the center of the insert 10 and is fixed to the slab form R by passing a temporary nail 20 along the longitudinal direction of the support portion 11 (see FIG. 12). ). The temporary nail 20 is provided with a notch 21 for separating itself from the upper side surface of the nail, and after the slab mold R is removed, the notch 21 can be cut (see FIGS. 9 and 10). . A removal port 12 for cutting the temporary nail 20 is provided in the lower portion of the support portion 11 of the insert 10 (see FIG. 10). The removal port 12 is a space for swinging a portion below the cutout portion 21 of the temporary nail 20, and grips the lower end portion of the temporary nail 20 with a tool (not shown) such as pliers and rocks it. Thus, the temporary nail 20 is cut from the notch 21. Further, an insertion hole 13 through which the string-like binding tool 30 is inserted is provided in the upper portion of the support portion 11. The insertion hole 13 penetrates the upper portion of the support portion 11 in the lateral direction and intersects with the removal port 12. The existing insert 10 fixes the cable P by inserting the binding tool 30 into the insertion hole 13 (see FIG. 12).

  There is also an insert 10 that uses a temporary nail 20 not provided with a notch 21 and forcibly pulls out the temporary nail 20 from the removal port 12 of the insert 10 (see FIG. 11). The insert 10 is formed in advance so that the locking portion of the temporary nail 20 is thinly formed so that the temporary nail 20 can be easily pulled out from the insert 10 (not shown). When the mounting tool of the present invention is mounted, the connecting body 1 is connected to the insertion hole 13 instead of the binding tool 30 to be mounted on these inserts 10 (see FIG. 2). Therefore, the fixture of the present invention can be attached to the existing insert 10 as well as the insert 10 to be attached by new construction.

  The mounting method of the fixture of the present invention is as follows. That is, the fixture is attached to the outside of the temporary nail 20 while passing the temporary nail 20 through the insertion hole 3 of the fixture without removing the temporary nail 20 after the slab form R is removed. The cable P is connected to a binding tool 30 that is previously attached to the support body 2 and the locking body 4 of the fixture of the present invention. Further, when the existing insert 10 is used, the temporary nail 20 is removed, but it goes without saying that the fixture of the present invention can be mounted in the same manner without the temporary nail 20.

It is a perspective view which shows one Example of this invention fixture. It is a side view which shows the state which mounts this invention fixture. It is a side view which shows the mounting state of this invention fixture. It is a side view which shows the other Example of this invention fixture. It is a side view which shows the other Example of this invention fixture. The other Example of this invention fixture is shown, (a) is a side view, (b) is a side view which shows a mounting state. The other Example of this invention fixture is shown, (a) is a side view, (b) is a side view which shows a mounting state. The other Example of this invention fixture is shown, (a) is a side view, (b) is a side view which shows a mounting state. It is a sectional side view which shows the state which fixed the conventional cable support insert to the slab formwork. It is a sectional side view which shows the state which cut | disconnected the temporary nail from the conventional cable support insert. It is a sectional side view which shows the state which removed the temporary nail from the other conventional cable support insert. It is a perspective view which shows the state which supported the cable to the conventional cable support insert.

Explanation of symbols

P Cable Q Slab R Slab formwork 1 Connected body 1A Inlet
1B Claw
1C Adjustment slit 2 Support body 2A Protection rod
2B Locking rod 3 Insertion port 4 Locking body 4A Notch groove 10 Insert 11 Supporting part 12 Removal port 13 Insertion hole 20 Tempering nail 21 Notch part 30 Binding tool

Claims (5)

In a cable connecting fixture to be attached to a cable support insert embedded in the lower surface of a slab, the insert is an insert temporarily fixed to a slab form with a temporary nail and is suspended downward from its center. For removal that has a projection-shaped support portion provided and is fixed to the slab mold frame by passing through the longitudinal direction of the support portion, and can be removed after the slab mold frame is removed The mouth is formed along the support portion, and the insert is provided with an insertion hole penetrating the upper portion of the support portion in the lateral direction and passing through the string-like binding tool, while the attachment tool is inserted into the insertion hole of the insert support portion. A connecting body for locking , and a support body that is provided vertically below the connection body and supports the cable, and is provided with an insertion port through which the temporary nail is inserted into the connection body and the support body. The tip of the temporary nail protruding from the Cable support fixture insert, characterized in that enclosed in the support.   The cable support insert according to claim 1, wherein the support body includes a pair of left and right protective rods extending along both longitudinal sides of the temporary nail and a locking rod connecting the lower ends of the protective rods. Fittings.   The cable support insert fixture according to claim 1, wherein the support body is provided in a substantially cylindrical shape surrounding the periphery of the temporary nail. A locking body for cable connection is provided substantially horizontally between the connecting body of the fixture and the support body, and a notch groove for fixing the binding tool for cable connection is formed in the locking body. The cable support insert mounting tool according to any one of claims 1 to 3, wherein the longitudinal end portions of the locking body are provided so as to contact the lower surface of the insert or the lower surface of the slab when tilted. It has a projecting support part that hangs downward from the center of the insert, and is fixed to the slab mold by the provision of a temporary nail along the longitudinal direction of the support. After the slab mold is removed, the temporary nail removal opening which allows removal of the formed along the supporting portion, the upper portion of the penetrating laterally insert for cable support the insertion holes for inserting the closure is provided in the string of the support portion, the cable In the mounting method for mounting the mounting tool to be connected, a connecting body that is locked to the insertion hole, a support that is provided vertically below the connecting body and that supports the connection of the cable, and an insertion port through which the temporary nail is inserted, The fixture is attached to the support portion so that the temporary nail is surrounded by the temporary nail through the insertion hole of the fixture while leaving the temporary nail after the slab formwork is removed. Mounting method for cable support insert.

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