JP2002364778A - Cables supporting tool for heat insulation material and wiring box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cables supporting tool for a heat insulation material and a wiring box capable of enhancing a mounting workability by directly thread-attaching it to the heat insulation material and not impairing a heat insulation effect. SOLUTION: The cables supporting tool H is fixed to the heat insulation material D in order to support the cables 34 along the heat insulation material D provided in a double ceiling, etc., of a building. The supporting tool H comprises a supporting tool body A in which a support part 2 for supporting the cables 34 is integrally provided on a front surface side of a closely attaching plate part 1 closely attached onto a surface of the heat insulation material D; and a fixing screw part F integrally provided on a back surface side of the closely attaching plate part 1 in order to fix the supporting tool body A to the heat insulation material D. The fixing screw part F is constituted such that a thread ridge part 4 is formed on an outer periphery surface of a cylindrical screw shaft part 3 of which a thread-in end is opened such that it can be threaded-in without removing the heat insulation material D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable support for a heat insulating material for supporting cables along a heat insulating material provided in a double ceiling or the like, mainly when a building is renovated. And a wiring box for a heat insulating material fixed to the heat insulating material.

[0002]

2. Description of the Related Art In order to support cables along a heat insulating material at the time of renovating a building provided with a heat insulating material in a double ceiling or the like, the cable support is fixed to the heat insulating material. Must. However, since it is difficult to fix to the heat insulating material, as shown in FIG. 9, the concrete screw 40 is used to fix directly to the concrete layer E. That is, when a building is newly constructed, the bolts can be screwed into the insert having the female screw portion embedded in the concrete layer E in advance, and the cable support H 'can be attached. Since the insert cannot be buried in the concrete layer E after casting, a method of driving the concrete screws 40 into the concrete layer E through the heat insulating material D by rotational vibration and attaching the cable support H ′ is used. Was common. Further, since the heat insulating material D has a porous structure and is made of a low-density foamed resin material or the like, it is generally soft, and the female screw portion cannot be processed thereon. Also,
Even if a general small screw or the like is screwed in and screwed in, the shape of the portion around the screw portion is broken, so that it is difficult to directly attach the cable support H ′ to the heat insulating material D. Was.

[0003] Similarly, in the work of wiring cables generated at the time of reforming, it is necessary to protect the joint portion (connection portion) with a protective cover called a "joint box". The joint box includes a base fixed to the heat insulating material D in a state of being in close contact with the surface of the heat insulating material D, and a cover detachably attached to the base. To be used, like the cable support H ′,
It was mounted using concrete screws 40 (not shown).

[0004] In this way, in order to attach the cable support H 'or the joint box to the ceiling wall or the like at the time of reforming, the portion of the heat insulating material D is penetrated and the hard concrete layer E is pierced. Therefore, a fixing member such as a concrete screw 40 that can be fixed has to be used. In this case, there were the following problems. (1) In order to drive the concrete screw 40 into the hard concrete layer E, it is troublesome to pre-drill a hole. In particular, driving the screw into the ceiling wall is difficult for a supine posture. It was difficult to work and its efficiency was poor. (2) Since it is necessary to drive in the long concrete screw 40 that reaches the concrete layer E by penetrating the heat insulating material D, the heat insulating material D is provided with a through hole therefor. Since the heat insulating material is lost by the distance, the heat insulating effect of the through hole is reduced. In addition, the concrete screw 40 is formed by sharpening the screw portion at the tip thereof, and is driven by rotating the tip portion while applying vibration to the head portion, and screwed into the concrete layer E portion. Are used to fix various members.

[0005]

SUMMARY OF THE INVENTION The present invention improves the mounting workability by allowing the screw to be directly screwed to a heat insulating material.
Another object of the present invention is to provide a cable support for a heat insulating material and a wiring box that do not impair the heat insulating effect.

[0006]

According to a first aspect of the present invention, there is provided a heat insulating material for supporting cables along a heat insulating material provided in a double ceiling of a building or the like. A support body which is integrally fixed with a support portion for supporting the cables on a front surface side of an adhesive plate portion which is in close contact with the surface of the heat insulating material; In order to fix the main body to the heat insulating material, the fixing screw portion is provided on the back surface side of the contact plate portion, and the fixing screw portion is capable of being screwed into the heat insulating material.
It is characterized in that a screw thread portion is formed on the outer peripheral surface of the screw shaft portion.

According to the first aspect of the present invention, since the fixing screw portion can be screwed into the heat insulating material, the cable support is provided with a necessary strength to the heat insulating material which is considered difficult to fix. And can be fixed.

According to a second aspect of the present invention, there is provided a cable supporting device fixed to the heat insulating material so as to support the cables along the heat insulating material provided in the double ceiling of the building or the like. On the front side of the contact plate portion that is in close contact with the surface of the heat insulating material, a support tool body integrally provided with a support portion that supports the cables, and for fixing the support tool body to the heat insulating material, A fixing screw portion provided on the back side of the contact plate portion, wherein the fixing screw portion is a cylindrical screw shaft having a threaded end opened so as to be screwable without removing the heat insulating material. The threaded portion is formed on the outer peripheral surface of the portion.

According to the second aspect of the present invention, since the screw shaft portion of the fixing screw portion is cylindrical, the screw shaft portion can be formed with respect to the heat insulating material without forming a pilot hole in the heat insulating material. The screw can be screwed as it is, and at the time of screwing, the cylindrical portion of the heat insulating material cut by the tip of the cylindrical screw shaft portion is directly filled into the hollow filling portion of the screw shaft portion. As described above, since the fixing screw portion is screwed into the heat insulating material, and the total contact area between the heat insulating material and the thread portion is increased, the cables and the like are not easily fixed to the heat insulating material. The support can be securely and easily fixed with the required fixing strength. In addition, since the cables and the like can be fixed without removing the heat insulating material, the heat insulating material is not lost at the fixed portion, so that the heat insulating property of the portion can be prevented from lowering.

[0010] The invention of claim 3 is based on claim 1 or 2.
In the invention described in the above, in order to increase the contact area with the heat insulating material, the difference between the diameters of the crests and the valleys is large, and the thread portion forming the fixing screw portion is large. The tip is characterized by being sharply formed.

According to the third aspect of the present invention, when the fixing screw portion is screwed into the heat insulating material and the support body is fixed to the heat insulating material, the screw portion of the fixing screw portion and the heat insulating material are insulated. The total contact area with the material is increased, and the fixing force can be increased.

According to a fourth aspect of the present invention, there is provided a wiring box fixed to a heat insulating material provided in a double ceiling of a building or the like, wherein the back side of the box body is in close contact with the surface of the heat insulating material. A fixing screw portion is provided on the outer periphery of the screw shaft portion so that the fixing screw portion can be screwed into the heat insulating material. In the wiring box according to the present invention, the effect can be obtained for the same reason as in the case of the invention relating to the cable support for heat insulating material according to the first aspect.

According to a fifth aspect of the present invention, there is provided a wiring box for a heat insulating material for covering and protecting a joint portion of a cable, the base being fixed to the heat insulating material in a state in which the wiring box is in close contact with the surface of the heat insulating material. And a cover detachably attached to the base, and a fixing screw portion that can be screwed into the heat insulating material is provided on the back surface side of the base.

According to the fifth aspect of the present invention, when the base is rotated until the back surface of the base comes into close contact with the heat insulating material, the fixing screw portion provided on the back surface side is screwed into the heat insulating material, The base can be fixed to the insulation. Thereafter, the joints of the cables and the like may be arranged on the base, and the cover may be covered with the base for use.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a cable support H according to the present invention will be described in detail with reference to FIGS. FIG. 1 shows a cable support H screwed to a heat insulating material D.
FIG. 2 is a partial cross-sectional perspective view showing a state in which cables 34 are supported by cables, and FIG. FIG. 3 is a partially cutaway front view showing the state of FIG.
FIG. 5 is a front view in which a part of a state in which a cable support H is screwed to a heat insulating material D is cut away. 4 and FIG.
It is the perspective view of the cables supporter H seen from the fixing screw part F and the support part 2 side, respectively.

As shown in FIGS. 1 and 3, a cable support H is used to support cables 34 along a heat insulating material D provided on a ceiling wall W in a double ceiling. is there. The ceiling wall W constituting the double ceiling has a configuration in which a heat insulating material D is integrally attached to the surface (lower surface) of the concrete layer E. The cable support H mainly includes cables 3
4 and a fixing screw portion F which is screwed into the heat insulating material D and fixes the cable support H to the ceiling.
The support tool main body A is provided with a disc-shaped contact plate portion 1 which is in close contact with the surface of the heat insulating material D and stabilizes a fixed state, and is attached to the heat insulating material D as shown in FIG. In this state, the substantially cylindrical fixing screw portion F is integrally formed substantially concentrically on the surface serving as the back surface. On the other hand, as shown in FIG. 5, a support portion 2 having a substantially L-shaped overall shape is integrally formed on the surface of the contact plate portion 1, and serves as a portion for holding cables 34.

First, the configuration of the fixing screw portion F will be described. The fixed screw portion F is formed by forming a screw thread portion 4 on the outer peripheral portion of a cylindrical screw shaft portion 3 from a threaded end portion 5 toward a base end portion. The screw end portion 5 of the screw shaft portion 3 is open, and a hollow filling portion 6 is formed on the inner periphery over the entire axial length of the screw shaft portion 3. Screw shaft part 3 according to the present invention
Is for screwing into the heat-insulating material D without providing a prepared hole, so that the screwed end portion 5 has such a thickness that it can be screwed by rotation. Further, the hollow filling portion 6 is configured such that the contact plate portion 1 comes into close contact with the surface of the heat insulating material D, and the fixing screw portion F
Is a portion in which the cylindrical portion D ′ of the cut and separated heat insulating material is filled as it is in a state of being screwed to the heat insulating material D.

Further, as shown in FIG.
In (2), the root diameter r is the same as the outer diameter of the screw shaft portion 3 and the outer diameter of the thread portion 4 is R, but the contact area between the heat insulating material D and the thread portion 4 is reduced. In order to increase the diameter, the outer diameter R of the thread portion 4 is provided much larger than the diameter r of the valley than a general thread, and therefore, the height K of the thread is increased. Is formed. K = (R-r)
/ 2. In other words, the screw portion 4 is provided so as to have a large surface area developed in a helical direction in order to be screwed to the soft heat insulating material D. When the fixing screw portion F is rotated, The thread 4 has a small angle and the tip 7 is sharpened so that it can be easily screwed into the heat insulating material D.

Next, the structure of the support body A will be described. The support portion 2 having a predetermined width is provided on its vertical plate portion 2.
At the top of a, it is integrally connected to the contact plate 1 and is formed along the diametrical direction of the contact plate 1 so as to face the contact plate. The support portion 2 has cables 34 attached to the horizontal plate portion 2b.
For holding the cable 3
In order to secure a strength that can withstand the weight of 4, a rib 31 is provided along the longitudinal direction. Also, the support 2
At the free end of the horizontal plate portion 2b, the cables 34 are inserted from the insertion opening 10 and hooked on the horizontal plate portion 2b.
A pair of hooking grooves 8 for closing 0 is formed facing the support 2 in the width direction. The binding band 3 is provided together with the pair of hooking grooves 8 on the close contact plate 1 facing the portion of the support portion 2 in which the hooking grooves 8 are formed in the height direction.
The hooking piece 9 for hooking the hook 5 is provided, and the binding band 35 is hooked over the hook-shaped portion of the hooking piece 9 and the pair of hooking grooves 8, closed and closed. The cables 34 do not come out of the opening 10. Numeral 33 shown in each drawing is a notch provided on the outer peripheral portion of the contact plate portion 1, and a concrete screw 40 for use when extremely heavy cables 34 need to be hung unavoidably. And so on.

Next, a description will be given of an example of using the cables supporter H according to the present invention to support cables along the ceiling. A position necessary for suspending the cables 34 is determined, and the fixing screw portion F of the cable support H is screwed into the position. As shown in FIG. 2, when rotating while pressing the screwed end portion 5 of the fixing screw portion F against the heat insulating material D formed of a foamed resin material having a pore structure, the portion can be screwed. Since it has a cylindrical shape with a predetermined thickness, the area of interference between the screwed end portion 5 and the heat insulating material D is minimized, and screwing is possible. And the screw shaft 3
Is filled in the hollow filling portion 6 of the screw shaft portion 3 as it is, and remains in the hollow filling portion 6 without being removed. For this reason, even if the fixing screw portion F of the cable support H is screwed into the heat insulating material D and fixed, the heat insulation at the fixing portion does not decrease. In FIG. 3, reference numeral 32 denotes a trace of a screw hole in which the screw portion 4 is spirally screwed and the heat insulating material D is cut off.

In this way, the entire cable support H is rotated so that the contact plate portion 1 comes into contact with the heat insulating material D, and the fixing screw portion F is screwed into the heat insulating material D. The screw thread portion 4 of the fixing screw portion F has a small angle at the tip and is formed sharply, and the friction with the heat insulating material D at the time of screwing is small, so that the screw portion is easy to screw. Since the height K of the ridge portion 4 is large, the contact area between the portion where the thread portion 4 is developed in the spiral direction and the heat insulating material D is large, and the fixing force is large.

With the cables and supports H fixed to the heat insulating material D as described above, the cables 34 are inserted through the insertion opening 10 of the support body A, and the cables 34 are attached to the ceiling wall. If the insertion opening 10 is closed and closed by using the binding band 35 while supporting along the W, the cables 34 supported along the ceiling will not come out of the insertion opening 10.

Next, a wiring box according to the present invention called a joint box will be described in detail with reference to FIGS. FIG. 6 is a partial cross-sectional perspective view showing a state where the joint portion 34a of the cables 34 is protected by the joint box J screwed to the heat insulating material D, and FIG. 7 is a cross-sectional view of FIG. 5 is a perspective view of the joint box J when the base B is viewed from the side of the fixing screw portion F. FIG. As shown in FIGS. 6 and 7, the joint box J is used to cover the joint portion 34 a of each of the cables 34 wired on the ceiling to protect the joint portion 34 a from an impact or the like. A base B fixed to the base B in a state of being in close contact with the surface of the base B, and a cover C formed of a transparent resin material and detachable from the base B. As shown in FIG. 8, the base B has a rectangular contact plate portion 11 that is in close contact with the heat insulating material D on the ceiling.
And a base portion 12 having a pair of engagement holes 13 protruding at both ends in the longitudinal direction for mounting the cover C, and formed into a substantially rectangular parallelepiped shape. On the back surface of the base B, the fixing screw portion F is provided substantially at the center of the close contact plate portion 11 in the longitudinal direction. The fixing screw F has the same configuration as that of the cable support H described above.

On the other hand, the cover C is in the form of a box having only an upper surface that is open to and dismountable from the base B, and a pair of opposite ends of the opening end for engaging with the engagement holes 13. Are provided to face outward. Then, when the cover C is pressed against the base B, the latter engaging piece 14 is inserted into and engaged with the former engaging hole 13, and the cover C is attached to the base B. When the portions of the cover C where the pair of engaging pieces 14 are provided are pressed together, the cover C
Is slightly elastically deformed inward, the engagement is released, and the cover C is removed from the base B.

The method of using the joint box J is as follows. First, the base B is attached to the heat insulating material D. As in the case of the cable support H, the fixing screw portion F is pressed against the heat insulating material D, and the base portion 12 is rotated until the contact plate portion 11 of the base B is in close contact with the heat insulating material D, The fixing screw portion F is screwed into the heat insulating material D. For the same reason as described for the cable support H, the screw can be screwed into the heat insulating material D formed of a resin material having a pore structure. Similarly, since the cylindrical portion D ′ of the heat insulating material cut by the distal end of the screw shaft portion 3 is filled in the hollow filling portion 6 of the screw shaft portion 3, there is a possibility that the heat insulating property at the screwed portion may be impaired. Absent. The thread 4 of the fixing screw F
Is similar to that of the cable support H, and has a sufficient fixing force to the heat insulating material D for the same reason.

Thus, after the screwing is completed,
Inserting the engaging pieces 14 of the cover C into the engaging holes 13 of the base B while applying the joints (connections) of the ends of the cables 34 to the base B,
Engage each other. As a result, the joint 34a of the cables 34 is disposed at the center of the cover C, and the ends of the cables on both sides of the joint 34a are supported by the open end surfaces of the cover C. The joint 34a is protected.

In addition, when wiring various kinds of wiring boxes other than the above-mentioned joint box J to the heat insulating material D exposed on the ceiling wall W in the wiring at the time of renovation of the building, the above-mentioned box body is provided on the back side of the box body. If the fixing screw portion F having the configuration is provided integrally, the wiring box can be securely attached to the heat insulating material D.

Further, each of the fixing screw portions F of the cable support H and the joint box J of the above embodiment has a configuration in which the thread portion 4 is formed on the outer peripheral surface of the cylindrical screw shaft portion 3. Therefore, at the time of screwing, the hollow filling portion 6
In addition, since the cylindrical portion D ′ of the heat insulating material cut by the tip of the screw shaft portion 3 is filled as it is and there is no loss of the heat insulating material, there is an advantage that the heat insulating property is improved. The fixing screw portion can be screwed into the heat insulating material even if the fixing screw portion has a configuration in which a thread portion is formed on the outer peripheral surface of a cylindrical screw shaft portion having a solid structure.

Further, the support body A of the above-mentioned cable support H or the base B of the joint box J is
If there is an engagement part that can be engaged with a driver or an engagement part that can be engaged with a rotating holder that is rotated by an electric drill, the fixing screw part is rotated by these drivers or an electric drill. Then, the cable support H or the base B can be quickly fixed to the heat insulating material.

In each of the above embodiments, the fixing screw portion F is integrally provided on the back side of the support body A or the base B, but a separate fixing screw portion F is attached to the support member. It may be configured to be attached to the main body A or the base B.

In the above embodiment, the cable support H and the joint box J are attached to the heat insulating material D stuck to the ceiling wall W, but the heat insulating material stuck to the vertical wall is used. D can be attached in exactly the same way.

The term "cables" used in the present specification is not limited to cable-like ones such as electric wires, but also includes tubular ones such as electric conduits.

[0033]

According to the cable support and the wiring box according to the present invention, since the screw shaft of the fixing screw is cylindrical, the heat insulating material can be formed without forming a pilot hole in the heat insulating material. The screw shaft portion can be screwed as it is, and at the time of screwing, the cylindrical portion of the heat insulating material cut by the tip of the cylindrical screw shaft portion is directly inserted into the screw shaft portion. The filling space is filled. In this way, the fixing screw portion formed so that the height of the screw thread is increased with respect to the heat insulating material, and the total contact area between the heat insulating material and the screw thread portion is increased. The cable support and the wiring box can be securely and easily fixed to the heat insulating material, which is considered difficult to fix, with necessary fixing strength. In addition, since the cables and the wiring box can be fixed without removing the heat insulating material, loss of the heat insulating material in the fixing portion is eliminated, so that the heat insulating property of the portion can be prevented from lowering.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional perspective view showing a state in which cables 34 are supported along a ceiling by a cables support H screwed to a heat insulating material D.

FIG. 2 is a partially cutaway front view showing the state in which the fixing screw portion F is being screwed into the heat insulating material D by rotating the entire cable supporting member H;

FIG. 3 is a partially cutaway front view of a state in which a cable support H is screwed to a heat insulating material D;

FIG. 4 shows a cable support H viewed from the side of the fixing screw portion F
It is a perspective view of.

FIG. 5 is a perspective view of a cable support H viewed from a support portion 2 side.

FIG. 6 is a partial cross-sectional perspective view showing a state where a joint portion a of the cables is protected by a joint box J screwed to the heat insulating material D.

FIG. 7 is a sectional view of the same.

FIG. 8 is a perspective view of the joint box J when the base B is viewed from the side of the fixing screw portion F.

FIG. 9 is a cross-sectional view showing a state in which a conventional cable support tool H ′ adhered to the surface of a heat insulating material D is fixed to a concrete layer E using a concrete screw 40.

[Explanation of symbols]

 A: Support body B: Base (box body) C: Cover D: Insulation material D ': Cylindrical part of insulation material F: Fixing screw H: Cable support J: Joint box K: Height of thread R: Outer diameter of thread part r: Diameter of thread part root 1,11: Adhesive plate part 2: Support part 3: Screw shaft part 4: Thread part 5: Threaded end part 6: Hollow filling part 34 ： Cables 34a ： Joint section

Claims (5)

[Claims] 1. A cable supporter fixed to a heat insulating material for supporting cables along a heat insulating material provided in a double ceiling of a building or the like. A support body in which a support portion for supporting the cables is integrally provided on the front side of the close contact plate portion; and a back side of the close contact plate portion for fixing the support body to the heat insulating material. Wherein the fixing screw portion has a configuration in which a screw portion is formed on an outer peripheral surface of a screw shaft portion so that the fixing screw portion can be screwed into the heat insulating material. Cable support for thermal insulation. 2. A cable support fixture fixed to the heat insulating material to support cables along the heat insulating material provided in a double ceiling of a building or the like. A support body in which a support portion for supporting the cables is integrally provided on the front side of the close contact plate portion; and a back side of the close contact plate portion for fixing the support body to the heat insulating material. The fixing screw portion is provided on the outer peripheral surface of a cylindrical screw shaft portion having an open threaded end so as to be screwable without removing the heat insulating material. A cable support for a heat insulating material, characterized in that the support is formed with a portion. 3. The thread portion forming the fixing screw portion,
2. The method according to claim 1, wherein the difference between the diameter of the crest and the diameter of the valley is large in order to increase the contact area with the heat insulating material, and the tip of the thread portion is sharply formed. 3. The cable support for heat insulating material according to item 2. 4. A wiring box fixed to a heat insulating material provided in a double ceiling of a building or the like, wherein a fixing screw portion is provided on a back surface side of a box body which is in close contact with a surface of the heat insulating material. The fixing screw portion has a configuration in which a thread portion is formed on an outer peripheral surface of a screw shaft portion so that the fixing screw portion can be screwed into the heat insulating material. 5. A wiring box for a heat insulating material for covering and protecting a joint part of cables and the like, comprising: a base fixed to the heat insulating material in a state of being in close contact with the surface of the heat insulating material; A wiring box for a heat insulating material, comprising: a cover capable of being attached to the base; and a fixing screw portion which can be screwed into the heat insulating material is provided on a back surface side of the base.