JP2013124470A - Protective material of lines - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent lines such as electric wires from being damaged by nails or screws or the like driven or screwed when succeedingly attaching a plate material or the like to a horizontal member such as a beam or a crossbeam when the lines are inserted and penetrated between a lower floor and an upper floor of an architectural structure or the like through a through-hole or a bent through-hole opened on the horizontal member such as a crossbeam or a beam and passing through linearly or in a bending manner in a vertical direction.SOLUTION: A protective material of lines comprises a semicylindrical metal member whose outer diameter slightly exceeds an inner diameter of an object through-hole 2, has little elasticity, and can be reduced in diameter by being picked with a finger or the like. The thickness is such that it is not easily punched through by a nail or the like. A protective material 1 is inserted and fixed into the through-hole 2 and cables 4 inserted therein are protected. When spreading a plate material 5 to a horizontal material 3 and fixing it with a nail 6, even when the nail 6 is driven into the through-hole 2, since the distal end is bent to the left or right or the like by the protective material 1, it is not brought into contact with the cables 4 in the through-hole 2.

Description

  In the present invention, between the lower floor and the upper floor of the building, between the lower floor and the floor, etc., strips such as electric wires, telephone wires, and various pipes are opened in cross members such as girders and beams. Strips used to prevent the strips from being damaged by nails, screws, etc. that are driven when attaching plate members to the beams and girders that are subsequently inserted through the through holes. Relating to protective material.

We found two slightly related documents regarding this type of protective material.
One is Patent Document 1, and the invention described in Patent Document 1 is a cable protection material in which a tip-shaped embedded claw is provided at the front edge of the side surface of a semi-cylindrical covering.

  Therefore, according to the invention of Patent Document 1, the cables arranged along the surface of the substrate are covered with the semi-cylindrical covering, and at the same time, the tip-like shape disposed on the front edge of the side of the covering. A buried nail is driven into the substrate to hold the covering in that state. Or, if the cables are placed in a groove formed on the bottom surface of the rafter that supports the ceiling plate and are supported to be held in that state by a staple, the cables in the groove are Covered with a semi-cylindrical covering from below, and also in this case, the pointed embedding claw at the tip on both sides is driven in the vicinity of both sides of the groove to maintain the state. .

  In any case, by covering the cables with the cable protective material as described above, in the latter case, when attaching a ceiling board to the rafter, a nail or the like that is driven for the attachment The cable is damaged by the above, and it is intended to avoid the possibility of leakage or short circuit. In the former case, it is intended to prevent the cable from being damaged by a nail or screw driven in for some reason. is there.

  According to the invention of this patent document 1, when the cables are arranged at the opened position as described above, it is considered that the same effect is obtained, but beams, girders, joists, etc. When protecting the cables inserted in the upper and lower through-holes that pass through the cable, it is considered difficult to insert and fix the cable protective material into the upper and lower through-holes. Think of it as inappropriate.

  The invention described in Patent Document 2 is a wiring / pipe protection material, which has a vertically divided semi-cylindrical protective main body portion and a plurality of protruding pieces protruding from both end portions of the protective main body portion. It is.

  Therefore, according to the invention of Patent Document 2, for example, when wiring or piping is extended from the wall to the ceiling side, a wiring insertion hole penetrating vertically is formed in the lower frame wood, and the wiring insertion hole is formed from one side surface. A notch is made with a width corresponding to the diameter of the wire until it reaches the wire insertion hole, a portion between the two is removed, a U-shaped groove is formed, a wire or a pipe is disposed therein, and the groove is formed in the protective body portion. The wiring or piping is covered by the protection main body portion of the wiring / pipe protection material by covering the wiring or piping inside and projecting a plurality of projecting pieces protruding from both end portions of the protection main body portion into the corresponding portion of the groove. The protection state is maintained.

  The invention of Patent Document 2 has the same basic structure as that of Patent Document 1 and can be used in the same manner, and the same effect can be obtained. Therefore, it must be said that there are similar problems. In other words, when the wiring is arranged at an open position as described above, it seems that the protective effect as it is is obtained, but the upper and lower through holes that penetrate the beams, girders, joists etc. When it is intended to protect the pipes inserted in such closed holes, it is said that the wiring / pipe protection material is difficult to insert and fix in the upper and lower through holes. I must. Therefore, when the upper and lower through-holes are opened, a rough process that reduces the strength of the beams, beams, etc. is made by making a notch reaching the upper and lower through-holes from the side surface and removing the part between them, and making this a groove. It must be given.

Japanese Utility Model Publication No. 58-49515 JP 2002-64918 A

  The present invention is to provide strips such as electric wires, telephone lines or various pipes between a lower floor and an upper floor of a building, above and below a ceiling, between a floor and a floor, etc. When inserted and penetrated through a through-hole that opens straight through the material in a vertical direction or a bent through-hole that opens in the direction perpendicular to the vertical direction from the middle of the bottom, A problem to be solved is to provide a protective material for strips used to prevent the strips from being damaged by nails or screws that are driven or screwed in when a plate is attached to the strip It is.

  1 of the present invention is a through hole that is linearly penetrated in the vertical direction for insertion of strips formed in a horizontal member of a building, or is bent straight from the middle up to the middle in the vertical direction. It consists of a half-cylindrical hard member, for example, a metal member, inserted along the inner surface of the bent through hole that opens in the side surface of the metal, and at least part of the inner diameter of the through hole or the bent through hole It is a protective material for the strips having an outer diameter exceeding 25 mm and having elasticity that can be reduced in diameter when inserted into the through hole or the bent through hole.

  According to 2 of the present invention, in the protective material for the strips of 1 of the present invention, the outer diameter on one end side is made smaller than the inner diameter of the through-hole or the bent through-hole, and at least the outer diameter on the other end side is passed through the through-hole. The diameter is larger than the inner diameter of the hole or the bent through hole, and the portion extending from one end side to the other end side of the through hole or larger diameter than the inner diameter of the bent through hole is configured to be tapered. .

  According to the third aspect of the present invention, in the protective material for the strips according to the first aspect of the present invention, all of the diameters of the half-cylindrical hard members are made larger than the inner diameter of the through hole or the bent through hole. is there.

  4 of the present invention is the protective material for the strips of 1, 2 or 3 of the present invention, wherein the shape of the half-cylindrical hard member is formed in the half-cylindrical shape or the center in the circumferential direction along the length direction. It is configured in a half-divided cylinder shape having a ridge.

  According to the protective material for strips according to the first aspect of the present invention, various strips including electric wires, telephone lines, various cables, or pipes such as gas pipes and water pipes are used for upper and lower floors of a building. Through-holes that pass straight through in the vertical direction to the part located in the wall of beams, beams, and other cross members, etc. When a bent through hole that is bent sideways from the middle of the direction is opened and inserted and penetrated therethrough, the inner surface of the through hole or the bent through hole that requires protection, that is, driving or screwing in a nail or a screw from the outside, etc. If the protective material of this strip is inserted along the inner surface of the side where there is a possibility of being fixed, and fixed to that part, the nail or the like is driven toward the through hole or the bent through hole in the subsequent process Even if it has been removed, it is protected by the protective material of the strip, It is possible to avoid the problems that would cause damage to the elongated member such electric wires in the holes.

  The protective material has an outer diameter at least a part of which exceeds the inner diameter of the through hole or the bent through hole, and has elasticity that can be reduced in diameter when inserted into the through hole or the bent through hole. Therefore, when inserting into the through hole or the bent through hole, it is slightly bent by hand. After the insertion, if the force that has been bent is loosened, the outer diameter exceeding the inner diameter of the through hole or the bent through hole A part or all of the diameter returns to the original diameter, and is fixed in a stretched state in the through hole or the bent through hole. Therefore, the insertion can be performed very easily without using a special tool, but the fixing after the insertion can be performed very easily without requiring a special operation, and is very convenient. It is also a thing. Note that the elasticity of the metal is sufficient with the slight elasticity provided by many metals, and is not required to be as elastic as the spring material. In many cases, it is considered that a metal member is used as the half-cylindrical rigid member for various reasons. If so, the minimum elasticity is ensured in most cases as described above. can do.

  According to the protective material of the strips of the present invention, the one end side is configured to be smaller in diameter than the inner diameter of the through hole or the bent through hole, and up to the outer diameter portion exceeding the inner diameter of the through hole or the bent through hole. Since it has a tapered shape, it is inserted into the through-hole or the bent through-hole from the end of the small diameter, and the whole including the outer diameter portion exceeding the inner diameter of the through-hole or the bent through-hole. If it is pushed into the through hole or the bent through hole, it can be easily inserted by itself, and it can be fixed in the through hole or the bent through hole by itself. Naturally, it is possible to insert a small-diameter end into the through-hole or the bent through-hole as it is, and since the portion having a diameter larger than the inner diameter of the through-hole or the bent through-hole itself has elasticity, When pushed in, the diameter is automatically reduced corresponding to the inner diameter of the through hole or the bent through hole, so that smooth insertion is possible. Further, due to the elasticity, the large-diameter portion is pressed against the inner periphery of the through hole or the bent through hole in a stretched state, so that it can be fixed in the through hole or the bent through hole.

  According to the protective material for the strips of the third aspect of the present invention, the entire outer diameter is configured to be larger than the inner diameter of the through hole or the bent through hole. When inserting, it is necessary to bend it slightly by hand, but after insertion, both sides of the whole are stretched against the inner surface of the through hole or the bent through hole, so that the fixing is more reliable. It becomes.

  According to the protective material for the four strips of the present invention, the half-cylindrical shape is formed into a half-cylindrical cylinder or a half-square cylinder having a top ridge along the length direction at the circumferential center. Therefore, when this is inserted and fixed in the through hole or the bent through hole, if it is a half cylindrical shape, a nail or the like is driven from the outside toward the through hole or the bent through hole. Even if the tip of the nail or the like comes into contact with the half-cylindrical protective material, the nail or the like is protected according to the contact angle of the nail or the half-cylindrical protective material. Even if the nail or the like is an extremely strong object, the protective material is not easily punched out by being guided and bent to either side of the peripheral surface of the material.

  When the protective material is in the shape of a half-divided cylinder as described above, the tip of a nail or the like driven from the outside toward the through hole or the bent through hole completely coincides with the top ridge portion. There is almost no possibility, and it will contact diagonally with either part of the both sides. Therefore, it is guided to the surface and bends in the surface direction. Therefore, as in the case of the semi-cylindrical shape, even if the nail or the like is extremely strong, it is difficult to easily punch the protective material.

(a) is the perspective view seen from diagonally upward of the protective material of the strip materials of Example 1, (b) is the perspective view of the protective material of the strip materials showing the case where the diameter is reduced by applying pressure from both sides , (C) is a plan view of the state in which the protective material of the strip material of Example 1 is inserted and fixed in the through hole of the horizontal member through which the cables are inserted, and (d) is a sectional view taken along the line DD of (c). . Cross-sectional explanatory drawing which showed the state by which the nail was driven in the through-hole of the cross member which let the cables pass and fixed the protection material of the strips of Example 1 inside. (a) is a perspective view seen from obliquely above the protective material of the strip material of Example 2, (b) is a cross-sectional explanatory view showing a state in which the protective material of the strip material is inserted into the through hole, ( c) Cross-sectional explanatory drawing which shows the state which inserted the protection material of this strip into the through-hole. (a) is a perspective view seen from diagonally above the protective material of the strip material of Example 3, (b) is a side view of the protective material of the strip material, and (c) is a protective material of the strip material. Cross-sectional explanatory drawing of the state inserted in the through hole. (a) is a plan view of the protective material of the strip material of Example 4, (b) is a front view of the protective material of the strip material, and (c) is opened in the cross member of the protective material of the strip material The top view of the state inserted and fixed to the through hole. Cross-sectional explanatory drawing which showed the state by which the nail was driven in the through-hole of the horizontal member which let the cables pass and fixed the protection material of the strips of Example 4 inside. Cross-sectional explanatory drawing which shows the state which carried out the interior fixing of the protective material of the strip materials of Example 1 to the through-hole bent to the front side at the lower part.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings based on Examples 1 to 4.

<Example 1>
As shown in FIGS. 1 (a) and 1 (b), the protective material 1 for the strips of Example 1 is composed of a semi-cylindrical metal member (hard member), and its outer diameter is The size is slightly larger than the inner diameter of the target through hole 2. As shown by the arrows in FIG. 1 (b), it has a slight elasticity and can be reduced in diameter by pinching the sides 1a, 1a with fingers, etc. It can return to the original diameter. The thickness and material are such that they are not easily punched by the nail 6 (see FIG. 2).

  As described above, the protective material 1 for the strips is formed in a semi-cylindrical shape, but does not necessarily have a semi-cylindrical shape, and is slightly larger than a semi-circle, for example, a 4/7 cylinder. The semi-cylinder is a concept including them. The semi-cylindrical circle includes an ellipse having slightly different diameters in the intersecting direction.

  The protective material 1 for the strips of the first embodiment is configured as described above. For example, as shown in FIGS. 1 (c) and (d), the upper floor and the lower floor of the building It can be used by being inserted and fixed in the through hole 2 opened in a vertically penetrating state between the cross members 3 in order to protect the cables 4 inserted therethrough. As shown in FIG. 1 (b), the insertion into the through hole 2 is reduced in diameter so that both sides 1a and 1a are pinched with fingers or the like to be smaller than the inner diameter of the through hole 2. Do it above. Thus, the protective material 1 can be inserted into the through hole 2 very easily. After the insertion, if the pinched force is weakened, the protective material 1 returns to its original diameter and becomes locked inside the through hole 2. This locked state is obtained by the side sides 1a and 1a being stretched to the inner peripheral surface of the through hole 2. As shown in FIGS. 1 (c) and 1 (d), the protective material 1 is attached to the through-hole 2 with a plate 5 or the like in the surface of the cross member 3 in the subsequent process. At this time, the nail 6 or the like is inserted into the inner surface corresponding to the side where the nail 6 may be driven.

  Thus, by inserting and fixing the protective material 1 in the through hole 2, the cables 4 inserted in the through hole 2 can be protected. For example, as shown in FIG. 2, when a plate material 5 is attached to the cross member 3 and fixed with a nail 6, even if the nail 6 happens to be driven into the through hole 2, As shown, when the tip of the nail 6 comes into contact with the protective material 1, the cable 4 in the through hole 2 is damaged by the nail 6. There is almost no fear. Even if the nail 6 is driven directly in front of the protective material 1 and the tip of the nail 6 comes into contact with the protective material 1 from the front, the protective material 1 is a metal having a sufficient strength and has an appropriate thickness. Since it is prepared, it is almost impossible for this to penetrate the protective material 1. Since the nail 6 cannot be driven any further, the operator pulls out the nail and drives it to another site.

<Example 2>
As shown in FIG. 3 (a), the protective material 11 for the strips of Example 2 is a tapered and semi-cylinder whose outer diameter gradually decreases from one end (upper end) to the other end (lower end). It is comprised with the metal member (hard member) of a shape. The outer diameter on one end side of the large diameter is slightly larger than the inner diameter of the target through hole 12, and the outer diameter on the other end side is smaller than the inner diameter of the through hole 12. It has some elasticity and can be reduced in diameter by pinching the both sides 11a, 11a with a finger, etc., and if the force is loosened, it can naturally return to the original diameter. Its thickness and material should be such that it is not easily punched by nails or the like. The semicylinder referred to here is the same as that described in the first embodiment.

  As described above, the diameter of the lower end portion of the protective material 11 is smaller than the inner diameter of the target through hole 12, but the difference from the inner diameter of the through hole 12 is made as small as possible. If the difference is large, when this is inserted and fixed in the through hole 12, a nail or the like is driven from the outside, and when the tip is pressed against the lower side of the protective material 11, the lower side is deepened by the pressure. This is because it may be pushed. If the difference is small, it is pushed in slightly, but both sides 11a, 11a on the lower end side immediately contact the inner circumference of the through hole 12, and the bite state is not reached. This is because it is possible to achieve such protection.

  The protective material 11 of the strips of the second embodiment is configured as described above, and similarly to that of the first embodiment, the horizontal member 13 between the upper floor and the lower floor of the building is vertically penetrated. In order to protect the cables 14 inserted through the through-hole 12 opened in this, it can be inserted and fixed. As shown in FIG. 3 (b), the insertion into the through hole 12 is performed from the lower end of the small diameter, and for the large diameter portion of the upper end, the both sides 11a and 11a are picked and inserted with a reduced diameter, Push in a little strongly without reducing the diameter. In the latter case, it is inserted and fixed in contact with the inner periphery of the through-hole 12 while reducing its diameter. In the former case, when the finger is removed, the diameter is increased and the inner side of the through hole 12 is locked at both sides 11a and 11a, particularly at the upper part. This is as shown in FIG. Thus, the protective material 11 can be easily inserted into the through hole 12 and can be fixed.

  Needless to say, the protective material 11 is similar to that of the first embodiment. In the through hole 12, a plate material or the like of the side of the cross member 13 is pasted in the subsequent process. It is inserted and fixed on the inner surface side corresponding to the side surface on which a nail or the like may be driven.

  By inserting and fixing the protective material 11 in the through hole 12 in this way, the cables 14 inserted through the through hole 12 can be protected. This is exactly the same as that described for the protective material 1 of the strips of Example 1, and even when a nail is driven into the through-hole 12 when the plate material is attached to the cross member 13. The tip of the nail comes into contact with the protective material 11, and in many cases, the peripheral side is bent to either the left or right side, and the cables 14 in the through hole 12 may be damaged by the nail. Almost disappear. If the nail or the like is not guided to the left or right, no further driving can be performed, and similarly there is no possibility that the cables 14 are damaged.

<Example 3>
As shown in FIGS. 4 (a) and 4 (b), the protective material 21 for the strips of Example 3 is formed in a shape based on a semi-cylindrical metal member (hard member), and both shoulders thereof. It is configured to be provided with folded pieces 21a, 21a folded outward at the part. The outer diameter is configured to be slightly larger than the inner diameter of the target through hole 22. It has some elasticity, can be reduced in diameter by pinching the sides 21a, 21a with fingers, etc., and can naturally be restored to its original diameter if the force is relaxed. Its thickness and material should be such that it is not easily punched by nails or the like. The concept such as a semicircle is the same as that of the first embodiment.

  The protective material 21 for the strips of the third embodiment is configured as described above, and similarly to that of the first embodiment, the horizontal member 23 between the upper floor and the lower floor of the building is vertically penetrated. In order to protect the cables 24 inserted through the through hole 22 that is opened, the wire 24 is inserted and fixed. However, as described above, the protective member 21 of the third embodiment is formed with the folded pieces 21a and 21a on the both shoulders, so that the portion thereof is the through hole 22 as shown in FIG. 4 (c). Will be locked to the upper opening edge. Therefore, the protective material 21 of the third embodiment is inserted into the through hole 22 only in the portion below the folded pieces 21a and 21a. In short, the portions above the lower portions of the folded pieces 21a, 21a are exposed from the through holes 22.

  The above insertion into the through hole 22 is performed after the both sides 21b and 21b are pinched with fingers or the like so that the diameter is reduced to be smaller than the inner diameter of the through hole 22. Thus, the protective material 21 can be easily inserted into the through hole 22. If the pinched force is weakened after the insertion, the protective material 21 returns to its original diameter and is locked to the inner periphery of the through hole 22. This locking is obtained when both side edges 21 b and 21 b are stretched to the inner periphery of the through hole 22. In addition, as described above, the lower edge of the folded pieces 21a, 21a is also locked to the upper opening edge of the through hole 22. Of course, the protective material 21 is a side surface in which the plate member or the like of the cross member 23 is pasted in the through-hole 22 in the subsequent process, and a nail or the like may be driven at that time. Insert into the inner surface corresponding to.

  Thus, by inserting and fixing the protective material 21 in the through hole 22, the cables 24 inserted therein can be protected. When a plate material is attached to the cross member 23 and fixed with a nail, the upper end of the protective member 21 of the third embodiment is exposed above the cross member 23 as described above. Is larger than the cables 24 and is conspicuous, resulting in the operator being urged to remove the vicinity and perform the nailing operation. Even if this is overlooked and the nail is driven into the through hole 22, it is protected by the protective material 21 as in the first or second embodiment, and the cable in the through hole 22 is protected. There is little risk that the class 24 will be damaged by the nail.

<Example 4>
As shown in FIGS. 5 (a) and 5 (b), the protective material 31 for the strips of Example 4 is configured in a shape based on a metal member (hard member) having a half-angle cylindrical shape. The protective material 31 of the fourth embodiment has a shape obtained by halving an octagonal rectangular cylinder, and has an outer diameter slightly larger than the inner diameter of the target through hole 32. As shown by the arrows in FIG. 5 (b), it has a slight elasticity and can be reduced in diameter by pinching the sides 31c, 31c with fingers, etc. It is now possible to return to the original diameter. Further, the thickness and material thereof are such that they are not easily punched by a nail or the like. Note that one of the corner portions (top portions) of the protective material 31, that is, the ridge lines 31b, 31b along the length direction, is at the center of the front as shown in FIGS. Configure to be located. In the fourth embodiment, the protective material 31 literally has a shape in which an octagonal rectangular tube is divided in half, but may be slightly larger than half, which is also included in this concept. Of course, a rectangular cylinder other than an octagon may be divided in half.

  Therefore, according to the protective material 31 for the strips of Example 4, it can be used in the same manner as that of Example 1. For example, it is inserted and fixed in a through hole 32 opened in a vertically penetrating state in a cross member 33 between an upper floor and a lower floor of a building in order to protect cables 34 inserted therethrough. The protective material 31 is inserted into the through hole 32 after the both sides 31c and 31c are pinched with a finger or the like so as to have a diameter smaller than the inner diameter of the through hole 32. Thus, the protective material 31 can be inserted into the through hole 32 very easily. If the pinched force is weakened after insertion, the protective material 31 immediately returns to its original diameter and is locked to the inner surface of the through hole 32. This locking is obtained when both sides 31 c and 31 c of the protective material 31 are stretched to the inner peripheral portion of the through hole 32.

  Of course, as shown in FIG. 5 (c), the protective material 31 has a plate material or the like attached to the surface of the cross member 33 in the through hole 32 in the subsequent process. It is inserted into the inner surface corresponding to the side where the nail or the like may be driven. At this time, it should be inserted such that the central ridge line of the protective material 31 faces directly in front of the corresponding side surface of the cross member 33 to which the plate material or the like is attached.

  Thus, by inserting and fixing the protective material 31 in the through hole 32, the cables 34 inserted into the through hole 32 can be reliably protected. When the plate member 35 is attached to the cross member 33 and fixed with the nail 36, even if the nail 36 happens to be driven toward the through hole 32 as shown in FIG. Abutting on the protective material 31 and bending along either the left or right surface thereof, there is almost no possibility that the cables 34 in the through hole 32 are damaged by the nail 36. That is, when the nail 36 is driven in as described above, it can hardly hit the central ridgeline of the protective material 31 from the front, so that it hits either side of the both sides, as described above. The cable 34 in the through hole 32 is guided in the lateral direction along the left or right side, and there is almost no possibility that the cables 34 in the through hole 32 are damaged by the nail 36. Further, since the protective material 31 has a suitable strength, even if it hits the central ridge line from the front, it is not easily punched out. In that case, since the nail 36 cannot be driven, the operator should drive it in a different position.

  Note that the protective material 31 described above does not easily retract even when the nail 36 that has been driven comes into contact therewith and is pressed against it. This is because both sides 31c, 31c of the protective material 31 are stretched to the inner periphery of the through hole 32, and the retracting direction of the protective material 31 is a direction in which the distance between the side sides 31c, 31c is reduced. .

<Other examples>
This relates to an example in which the protective material 1 of the strips of Example 1 is inserted and fixed in the bent through hole 42 of the cross member 43. As shown in FIG. 7, the bent through hole 42 is bent linearly from the upper surface of the cross member 43 to the middle in the vertical direction and bent from the middle, that is, before penetrating the lower surface of the cross member 43. It is formed so as to open on the side surface of the material 43.

  When the cables 44 are wired from the upper floor to the lower floor using the bent through holes 42, the cables 44 are removed from a nail or the like that is driven when a plate material is attached to the cross member 43, etc. The protective material 1 of this strip is used for the purpose of protection. Of course, this is the same as the case of insertion and fixing in the through hole 3 or the like that is linearly created in the vertical direction. The method of insertion is the same.

  Specifically, in insertion into the bent through hole 42, the protective material 1 is pinched with fingers or the like at both sides 1a and 1a so as to have a diameter smaller than the inner diameter of the bent through hole 42. Do it above. As shown in FIG. 7, the protective material 1 can be inserted into the bent through hole 2 very easily from above. If the force pinched after the insertion is weakened, the protective material 1 returns to its original diameter, and is locked to the inner surface of the bent through hole 42 as shown in the figure. In addition, as shown in the figure, the protective material 1 is formed by attaching a plate or the like out of the surface of the transverse member 43 in the bent through hole 42 in the subsequent process, and driving a nail or the like at that time. Insert and fix on the inner side corresponding to the possible side.

  The protective material 1 is fixed by expanding the diameter of the protective material 1 that has been inserted with a reduced diameter, and having both sides 1a, 1a stretched against the inner peripheral surface of the bent through hole 42. Naturally, this is the same as in the case of the through hole 2 opened straight up and down. In the case of the bent through hole 42, when the lower end of the protective material 1 is lowered to the lower surface of the bent portion of the bent through hole 42, further lowering is avoided. You can also do it.

  By inserting and fixing the protective material 1 in the bent through hole 42 in this way, the cables 44 inserted in the through hole 2 can be protected in exactly the same manner as when inserted and fixed in the through hole 2.

  The protective material for the strips of the present invention can be used in the industrial field for manufacturing the same and the building field using the same.

DESCRIPTION OF SYMBOLS 1 Protective material of 1 material 1a Side of protective material 2 Through-hole 3 Horizontal material 4 Cables 5 Board material 6 Nail 11 Protective material of material 11a Protective material side 12 Through hole 13 Horizontal material 14 Cable 21 Protective material of material 21a Folded piece of protective material 21b Side of protective material 22 Through hole 23 Horizontal material 24 Cable 31 Protective material of strip material 31b Ridge line 31c Side of protective material 32 Through hole 33 Horizontal material 34 Cables 35 Plate material 36 Nail 42 Bent through hole 43 Cross member 44 Cables

Claims (4)

  A through-hole that penetrates linearly in the up-down direction for insertion of strips formed in a cross-piece of a building, or a bent-through that opens straight to the side of the cross-member and is bent halfway up and down The hole is made of a half-cylindrical hard member that is inserted along the inner surface side to be protected, at least part of which has an outer diameter that exceeds the inner diameter of the through hole or the bent through hole, and the through hole Or the protective material of the strips provided with the elasticity which can be diameter-reduced at the time of insertion in this bending through-hole.   The outer diameter on one end side is made smaller than the inner diameter of the through hole or the bent through hole, the outer diameter on at least the other end side is made larger than the inner diameter of the through hole or the bent through hole, and the other end side from the one end side 2. The protective material for strips according to claim 1, wherein the through-hole or the bent through-hole is expanded in a tapered shape up to a portion larger in diameter than the inner diameter.   The protective material for strips according to claim 1, wherein all of the diameters of the half-cylindrical hard members are larger than the inner diameters of the through holes or the bent through holes.   The strips according to claim 1, 2, or 3, wherein the shape of the half-cylindrical hard member is a half-cylindrical cylinder or a half-square cylinder having a top ridge along the length direction at the center in the circumferential direction. Protective material.

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