JP6171228B2 - Insertion hole forming tool for wiring and piping - Google Patents

Description

  The present invention relates to a wiring / pipe insertion hole forming tool used to form a wiring / pipe insertion hole in a plate material constituting a wall or ceiling of a building.

  Conventionally, insertion points of a small number of wiring cables (an example of wiring and piping) in a board material (such as multiple layers of gypsum board) that forms the interior side of walls and ceilings, etc., are inserted with a set inner diameter with a through hole forming tool such as a drill. A blocking treatment is performed in which a hole is formed through the wiring cable and a wiring cable is inserted into an insertion hole formed directly in the plate member, and then the insertion portion is filled with a soft sealant.

  In addition, after inserting and mounting a sleeve body made of resin or the like using a double-sided tape or the like in an insertion hole formed through a through-hole forming tool such as a drill, the wiring cable is inserted into the sleeve body, and the insertion portion There is also a clogging procedure in which a soft sealing material is filled (there is no appropriate literature showing these techniques).

  In the former technique, the outer peripheral surface of the wiring cable is in direct contact with the inner peripheral surface (that is, the cut surface of the plate material) of the insertion hole that is formed directly through the plate material before the sealing material is filled. The through-holes of the plate material are easily damaged due to the insertion work of the cable and the routing of the wiring cable after the insertion, which may cause the diameter of the insertion hole to become larger than necessary and reduce the fire protection performance. There is also a risk that the wiring cable may be damaged by the insertion work or the routing work of the wiring cable after the insertion. Furthermore, there is a problem that it is difficult to insert the wiring cable due to frictional resistance between the outer peripheral surface of the arranged cable and the cut surface of the plate.

  On the other hand, in the latter technique, since the sleeve body is inserted and mounted in the penetration portion of the plate material, the above-mentioned problems caused by the direct contact between the cut surface of the plate material and the outer peripheral surface of the wiring cable are improved, but for the wiring cable In order to form the insertion hole, there are two problems, namely, a plate material penetrating process using a drill or the like and a sleeve body attaching process using a double-sided tape. . In particular, this problem is a serious problem that greatly increases the work load due to the fact that the number of insertion points of the wiring cable in the plate material increases when the wiring cable is drawn into each room.

  The present invention has been made in view of the above-described actual situation, and the main problem is that the inner peripheral surface (cut surface) of the through-penetration portion of the plate material causing various problems and the outer peripheral surface of the wiring / pipe are directly connected. The object of the present invention is to provide a wiring / pipe insertion hole forming tool capable of efficiently forming an insertion hole capable of suppressing contact.

The first characteristic configuration of the present invention is a wiring / pipe insertion hole forming tool for forming a wiring / pipe insertion hole in a plate material forming a wall or ceiling,
A cylindrical base material capable of forming the insertion hole on the inner surface side, an operated portion that can be operated by an operating tool, and a perforated portion that enters the plate material by operating force on the operated portion and pierces the plate material Is provided,
The cylindrical base material is configured to penetrate the plate material by an operation on the operated portion from the state where the perforated portion is applied to the surface side of the plate material.

  That is, according to this configuration, by operating the operated portion with the operation tool from the state in which the perforated portion is applied to the surface side of the plate material, the inner peripheral surface of the cylindrical base material is formed as the insertion hole. In the installed state, insertion holes for wiring and piping are formed in the plate material. By this operation alone, insertion holes for wiring and piping are formed in the plate material with the inner peripheral surface of the penetration part of the plate material covered with the cylindrical base material. can do.

  Therefore, it is possible to rationally perforate the plate material using the cylindrical base material that forms the insertion hole for wiring and piping, and to form the insertion hole for wiring and piping with high work efficiency and to penetrate the plate material. Direct contact between the cut surface of the plate material and the outer peripheral surface of the wiring / pipe that causes various problems can be suppressed by the cylindrical base material covering the inner peripheral surface of the location.

  The 2nd characteristic structure of this invention exists in the point by which the thermal expansion material layer is provided at least at the internal peripheral surface of the said cylindrical base material.

  In other words, according to the above configuration, since the thermal expansion material that thermally expands in the event of a fire is provided in the cylindrical base material, when a fire occurs, the disappearance space of the wiring / piping is blocked by the thermal expansion of the thermal expansion material. be able to.

  Moreover, since the thermal expansion material is provided in a layered manner on the inner peripheral surface of the cylindrical base material, the cylindrical base material is made to penetrate the plate material without requiring operations such as movement and deformation of the thermal expansion material. Only through the insertion hole forming operation, it is possible to complete the fire prevention measures for attaching the thermal expansion material to the insertion hole.

  Therefore, it is possible to improve the fire resistance of the wiring / pipe insertion site in the plate material while avoiding the deterioration of workability.

  According to a third characteristic configuration of the present invention, the operated portion is provided at an end or inside of the cylindrical base material, and the operated portion is deformed or separated by an operation for forming an insertion hole by the operating tool. Thus, the insertion hole having the set inner diameter is formed inside the cylindrical base material.

  According to the said structure, while operating the to-be-operated part with which the end part or inner side of the cylindrical base material was operated with an operating tool, a cylindrical base material can be penetrated to a board | plate material, and the insertion hole by an operating tool The operated portion can be deformed or separated by a forming operation to form an insertion hole having a set inner diameter inside the cylindrical base material.

  That is, according to this configuration, the operated portion that becomes unnecessary after the insertion hole is formed is in a cylindrical shape in a state where the insertion hole forming space (the end portion or the inner space of the cylindrical substrate) in the cylindrical substrate is effectively used. The substrate can be provided.

  A fourth characteristic configuration of the present invention is a separation unit provided at a distal end portion of the cylindrical base material in a state where the operated portion and the perforated portion are separable by an operation for forming an insertion hole by the operation tool. It is in the point formed.

  In other words, according to this configuration, both the operated portion and the perforated portion that are not required after the insertion hole is formed, the insertion hole forming space in the cylindrical base material (the end portion or the inner space of the cylindrical base material) is effective. The cylindrical base material can be provided in a state of utilization.

  In addition, since the distance between the operated portion that receives the operating force from the operating tool and the perforated part is small, the operating force (for example, pressing force) by the operating tool can be efficiently transmitted to the perforated part, so that an insertion hole is formed. The work can be facilitated.

  5th characteristic structure of this invention exists in the point to which the said isolation | separation part and the said cylindrical base material are connected through the weak part.

  According to the above configuration, since the separation portion can be separated from the cylindrical base material with a small operating force as much as the weak portion is formed, the insertion hole forming operation can be further facilitated.

  Nevertheless, since the operating force on the operated part can be transmitted to the perforated part without passing through the fragile part, it is also avoided that the operating force transmitted from the operated part to the perforated part due to the presence of the fragile part is reduced. be able to.

Sectional view showing the structure of the wiring / piping insertion site The side view which shows the penetration hole formation tool of 1st Embodiment. The longitudinal cross-sectional view which shows the penetration hole formation tool of 1st Embodiment Sectional view taken along line IV-IV in FIG. Sectional drawing which shows the usage method of the penetration hole formation tool of 1st Embodiment. Sectional drawing which shows the usage method of the penetration hole formation tool of 1st Embodiment. The side view which shows the penetration hole formation tool of 2nd Embodiment Sectional drawing which shows the usage method of the penetration hole formation tool of 2nd Embodiment. The partially broken side view which shows the penetration hole formation tool of 3rd Embodiment The perspective view of the principal part which shows the penetration hole formation tool of 3rd Embodiment. The perspective view of the principal part which shows the penetration hole formation tool of another embodiment. The perspective view of the principal part which shows the penetration hole formation tool of another embodiment.

[First Embodiment]
2 to 4, for example, as shown in FIG. 1, the space in the wall with respect to the plate material B (in this example, two layers of gypsum board) constituting the surface side of the wall body W which is an example of a partition body. An insertion hole forming tool 1 for wiring / piping made of a heat-resistant resin, which forms an insertion hole A for taking out the wiring cable K from Sw to an outer wall space Sr (for example, indoor space) is shown.

  The insertion hole forming tool 1 includes a cylindrical base member 2 capable of forming the insertion hole A on the inner surface side, an operated part 3 that can be operated by an operating tool T such as a driver, and an operation on the operated part 3. A perforation portion 4 is provided to enter the inside of the plate material B by force and to make a hole in the plate material B.

  The operated part 3 and the perforated part 4 are separable into one end part in a state of substantially closing the tip part (an example of one end part in the cylinder axis X direction (see FIG. 2)) of the cylindrical base material 2. It is provided in the provided tip-shaped separation part 5.

  As shown in FIGS. 3 to 5, the operated portion 3 is operated at the central portion of the flat end surface 5 </ b> A (in other words, the bottom surface of the cylindrical base material 2) on the cylindrical base material 2 side in the separation portion 5. The engaged portion 3a is formed so that the operation portion t1 on the distal end side of the tool T can be engaged.

  Further, the perforated part 4 is constituted by a substantially conical outer peripheral surface 5 </ b> B constituting an end surface of the separating part 5 on the side opposite to the cylindrical base material 2.

  The outer peripheral surface 5B of the cylindrical base material 2 and the separation part 5 is a male for screwing and moving inside the plate member B as the operation tool T rotates about the cylinder axis X. A series or substantially series of spiral ridges 6 forming a threaded portion are provided.

  Further, as shown in FIG. 2, the length dimension L in the cylinder axis X direction of the cylindrical base material 2 covers the entire inner peripheral surface of the penetrating portion of the plate material B in a state of penetrating the plate material B. As can be done (see FIG. 6), the thickness dimension of the plate material B corresponding to the distance between the inner wall space Sw and the outer wall space Sr (in this example, the thickness dimension of two plaster boards constituting the plate material B); It is configured to be equal or larger.

  When the cylindrical base material 2 is screwed to the set depth position with respect to the plate material B at the other end portion (base end portion) in the cylindrical axis X direction of the cylindrical base material 2 (that is, cylindrical shape). The base material 2 is in contact with the periphery of the penetrating portion of the plate member B (see FIG. 6) when the base material 2 penetrates at a predetermined depth position), and prevents further cylindrical movement of the cylindrical base material 2 An annular flange portion 7 extending along the circumferential direction having a separation guide function, a positioning function, and a makeup function that causes a rotational operation force on the operation portion 3 to act as a separation force for separating the separation portion 5 from the cylindrical base material 2. (An example of a separation guide unit and an example of a positioning unit) are integrally formed so as to protrude radially outward.

  The cylindrical base material 2 and the separation part 5 are connected via a fragile part 8 whose strength is reduced so that the separation operation is easy. As shown in FIGS. 3 and 4, the fragile portion 8 is configured by dispersing and forming a plurality of hole portions 9 along the circumferential direction at an annular connection portion between the cylindrical base material 2 and the separation portion 5. Has been.

  On the inner peripheral surface of the cylindrical base material 2, a cylindrical thermal expansibility made of a thermal expansible heat-resistant material having thermal expansibility and heat resistance so that the inside of the insertion hole A can be expanded and closed in the event of a fire. A heat-resistant material layer 10 (an example of a thermal expansion material layer) is arranged.

  Next, a method of forming the insertion hole A in the plate material B using the insertion hole forming tool 1 configured as described above will be described.

  First, the tip of the perforated portion 4 is applied to the plate material B in a posture in which the tube axis X direction of the insertion hole forming tool 1 is orthogonal to the plate material B, and the operation portion t1 of the operation tool T is attached to the cylindrical base material 2. The operation portion t1 is inserted into the inside, and the operated portion 3 of the insertion hole forming tool 1 is engaged. And it rotates from this state, pressing the operating tool T.

  As shown in FIG. 5, the insertion hole forming tool 1 is rotated around the cylinder axis by the rotation operation of the operation tool T, and the pressing force toward the plate member B via the operation tool T and the operation tool T The insertion hole forming tool 1 enters the inside of the plate material B by the biting force of the spiral ridge 6 on the plate material B by the rotational operation force. The rotation operation by the operation tool T (in other words, the screwing operation of the insertion hole forming tool 1) is continued until the flange portion 7 comes into contact with the periphery of the penetration portion of the plate material B.

  Then, as shown in FIG. 6, when the insertion hole forming tool 1 is screwed until the flange portion 7 comes into contact with the periphery of the penetration portion of the plate material B, the insertion hole forming operation (in this example, a rotation operation with a large operation force) is performed. ) And the fragile portion 8 between the cylindrical base material 2 and the separation portion 5 is broken by this operating force to separate the separation portion 5.

  By this insertion hole forming operation, the insertion hole A is made to appear inside the cylindrical base material 2 to complete the formation of the insertion hole A into the plate material.

  In other words, the insertion hole forming tool 1 is inserted through the inner peripheral surface of the cylindrical base material 2 by operating the operated part 3 with the operating tool T from the state in which the perforated part 4 is applied to the surface side of the plate B. Since the insertion hole A for wiring / piping is formed in the plate material B in the penetrating state of the hole A, the plate material is covered and protected with the cylindrical base material 2 at the inner peripheral surface of the penetration portion of the plate material B only by this operation. An insertion hole A for wiring and piping can be formed in B.

  Therefore, the board B is rationally perforated using the cylindrical base material 2 that forms the insertion holes A for wiring and piping, and the insertion holes A for wiring and piping are formed in the board B with high work efficiency. In addition, direct contact between the cut surface of the plate B and the outer peripheral surface of the wiring cable K, which causes various problems, can be suppressed by the cylindrical base material 2 that covers and protects the inner peripheral surface of the penetration portion of the plate material.

  Moreover, since the heat-expandable heat-resistant material layer 10 that thermally expands at the time of a fire is provided on the inner peripheral surface of the cylindrical base material 2, only by the insertion hole forming work for penetrating the insertion hole forming tool 1 in the plate material B, The fire prevention measures at the insertion point of the cable K in the plate material B can be completed.

[Second Embodiment]
7 and 8 show another example of the insertion hole forming tool 1 used for forming the wiring / piping insertion holes A in the plate material B. In this insertion hole forming tool 1, the operated portion 3 and The perforated part 4 is configured to be deformed by an operation for forming an insertion hole by the operation tool T to form the insertion hole A (see FIG. 8) having a set inner diameter inside the cylindrical base material 2. .

  The operated portion 3 and the perforated portion 4 have a pointed shape provided to be deformable at one end portion in a state of substantially closing one end portion (tip portion) in the cylindrical axis X direction of the cylindrical base material 2. The deformation part 11 is provided.

  The deformable portion 11 is composed of a plurality of divided pieces 11a obtained by dividing the distal end side in the radial direction by a cutting line along the cylinder axis X direction, and an insertion hole forming operation for the operated portion 3 described later. Thus, the distal end side which is the free end side in each divided piece 11a is configured to swing and deform radially outward to reveal the insertion hole A.

  The operated portion 3 is operated with respect to a central portion of a flat end surface 11A (in other words, a bottom surface of the cylindrical base material 2) on the cylindrical base material 2 side in the deformable portion 11 (an assembly of the divided pieces 11a). An engaged groove 3a that can be engaged with the operation portion t1 of the tool T is formed.

  Further, the perforated part 4 is constituted by a substantially conical outer peripheral surface 11 </ b> B constituting an end surface of the deformable part 11 on the side opposite to the cylindrical base material 2.

  In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

  Next, a method of forming the insertion hole A in the plate material B using the insertion hole forming tool 1 configured as described above will be described.

  Although not shown in the figure, similar to the content described in the first embodiment, the tip of the perforated part 4 is applied to the plate material B in a posture in which the tube axis X direction of the insertion hole forming tool 1 is orthogonal to the plate material B, The operation part t1 of the operation tool T is inserted into the cylindrical base material 2, and the operation part t1 is engaged with the operated part 3 of the insertion hole forming tool 1. Then, the operation tool T is rotated from this state while pressing the operation tool T toward the plate material.

  By rotating the operating tool T, the insertion hole forming tool 1 is rotated around the center of the cylinder axis, and the pressing force toward the plate member B via the operating tool T and the rotational operating force applied to the operating tool T are spiral. The insertion hole forming tool 1 enters the inside of the plate material B by the biting force of the ridges 6 into the plate material B. The rotation operation by the operation tool T (in other words, the screwing operation of the insertion hole forming tool 1) is continued until the flange portion 7 comes into contact with the periphery of the penetration portion of the plate material B.

  At this time, since the outer peripheral surface of the deforming portion 11 is configured to have a pointed shape, when entering the plate material B, each divided piece 11a is reliably brought into a collective state with the outer peripheral surface being pressed by the plate material B. Maintained.

  Then, when the insertion hole forming tool 1 is screwed in until the flange portion 7 comes into contact with the peripheral edge of the penetrating portion of the plate member B, an insertion hole forming operation (in this example, a pushing operation) is performed as shown in FIG. Thus, the distal end side of each divided piece 11a of the deforming portion 11 is expanded outward in the radial direction, and the deforming portion 11 is deformed and expanded.

  By this insertion hole forming operation, the insertion hole A is made to appear inside the cylindrical base material 2 and the formation of the insertion hole A to the plate material B is completed.

  Note that when the insertion hole forming tool 1 is screwed, the operation is performed in a state in which a rotational operation force and a relatively strong pressing force are simultaneously applied to the operated portion 3 of the insertion hole forming tool 1. For example, when the perforated part 4 penetrates the plate material B at the final stage of the screwing movement of the insertion hole forming tool 1, the pushing force acts on the deformed part 11, and the distal end side of each divided piece 11 a of the deformed part 11 is moved. The insertion hole A can be made to appear inside the cylindrical base material 2 by expanding outward in the radial direction.

[Third Embodiment]
9 and 10 show another example of the insertion hole forming tool 1 used for forming the insertion hole A for wiring and piping in the plate material B. FIG.

  In the insertion hole forming tool 1, the perforated part 4 is composed of a tapered cylindrical part provided at the distal end of the cylindrical base material 2, and an annular distal end edge of the cylindrical part is provided. Are formed with a large number of blade portions 4a which are continuous in a saw blade shape along the circumferential direction.

  In addition, the operated portion 3 is formed to be depressed in a state in which the inner peripheral surface of the cylindrical base material 2 is expanded in diameter at the end surface of the other end portion (base end portion) in the cylindrical axis X direction of the cylindrical base material 2. It is comprised from the to-be-engaged recessed part 3b.

  The contour shape of the engaged recess 3b is configured to be a shape (hexagon in this example) into which an operation part (hexagonal cylindrical part in this example) of an operation tool such as a hexagon wrench can be fitted.

  In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

[Another embodiment]
(1) In the first embodiment described above, the case where the separation unit 5 including the operated unit 3 is provided at the distal end portion of the cylindrical base material 2 is described as an example. It may be provided in an intermediate portion (an example of the inner side of the cylindrical base material 2) in the cylindrical axial direction inside, and as shown in FIG. It may be provided at the end.

  (2) In each of the above-described embodiments, the case where the operated portion 3 is provided on the radially inner side of the cylindrical base material 2 is illustrated, but provided on the radially outer side of the cylindrical base material 2. It may be done.

  In this case, for example, as shown in FIG. 12, the outer shape of the flange portion 7 formed to protrude radially outward of the cylindrical base material 2 can be engaged with the operation portion of the operation tool T such as a spanner or pliers. By doing so, the operated portion 3 and the flange portion 7 may be combined.

  (3) In each of the above-described embodiments, the resin material having heat resistance is shown as an example of the material of the insertion hole forming tool 1, but for example, a resin material having thermal expansibility or a resin having nonflammability A material, a metal, etc. may be sufficient and a combustible material may be sufficient. In addition, when a combustible material is employ | adopted as a raw material of the insertion hole formation tool 1, it is desirable to fill with fillers, such as a thermally expansible nonflammable material, between the insertion hole formation tool 1 and the wiring cable K. FIG.

  (4) As described above, when a resin material having a thermal expansion property is employed as the material of the insertion hole forming tool 1, the thermal expansion material layer 10 described in the above embodiments may be appropriately omitted. .

  The present invention is not limited to buildings, and can be suitably applied to form wiring and piping insertion holes in the walls and ceiling of various structures and devices.

B Plate material A Insertion hole T Operation tool 1 Insertion hole formation tool 2 Cylindrical base material 3 Operated part 4 Perforation part 5 Separation part 8 Fragile part 10 Thermal expansion material layer

Claims (5)

An insertion hole forming tool for wiring / piping that forms an insertion hole for wiring / piping in a plate material forming a wall or ceiling,
A cylindrical base material capable of forming the insertion hole on the inner surface side, an operated portion that can be operated by an operating tool, and a perforated portion that enters the plate material by operating force on the operated portion and pierces the plate material Is provided,
A thermal expansion material layer is integrally provided on at least the inner peripheral surface of the cylindrical base material,
A wiring / pipe insertion hole forming tool configured such that the cylindrical base material is penetrated through the plate by an operation on the operated portion from a state in which the perforated portion is applied to the surface side of the plate. An insertion hole forming tool for wiring / piping that forms an insertion hole for wiring / piping in a plate material forming a wall or ceiling,
A cylindrical base material capable of forming the insertion hole on the inner surface side, an operated portion that can be operated by an operating tool, and a perforated portion that enters the plate material by operating force on the operated portion and pierces the plate material Is provided,
The cylindrical base material is composed of a thermal expansion material;
A wiring / pipe insertion hole forming tool configured such that the cylindrical base material is penetrated through the plate by an operation on the operated portion from a state in which the perforated portion is applied to the surface side of the plate.   The operated part is provided at an end or inside of the cylindrical base material, and the operated part is deformed or separated by an operation for forming an insertion hole by the operation tool and set inside the cylindrical base material. The insertion hole forming tool for wiring and piping according to claim 1, wherein the insertion hole is formed to have an inner diameter.   The separation portion provided at the distal end portion of the cylindrical base material in a state where the operated portion is integrally provided with the perforated portion and is separable by an operation for forming an insertion hole by the operation tool. The insertion hole forming tool for wiring and piping according to claim 3, comprising:   The wiring / pipe insertion hole forming tool according to claim 4, wherein the separation portion and the cylindrical base material are connected via a fragile portion.

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