JP3224221U - Tube fixing structure - Google Patents

Abstract

To provide a tube fixing structure capable of reliably fixing a tube to a structure of a building. A square bar 1 is inserted into a gap 13 between opposing plate portions 11 of a main body member 10, and then a pipe member 41 of a sprinkler unwinding pipe 4 is inserted from the outside of the gap 13 to a housing portion 16 through a notch portion 17. In this state, when the screw member 30 is tightened from the outside of the gap 13, the tip end portion of the screw shaft portion comes into contact with one arm portion 21 of the stress reducing member 20, and the square bar 1 is connected to the tube member 41 by the thrust of the screw. The two are fixed by being pressed against the outer peripheral surface. At this time, the convex portion 47 on the outer peripheral surface of the pipe member 41 is accommodated in the accommodating concave portion 18 formed around the accommodating portion 16, or the insertion convex portion 19 is inserted into the concave portion 48. Rotation is regulated. [Selection] Figure 7

Description

  The present invention relates to a tube fixing structure, and more particularly to a tube fixing structure including a tube fixing tool for fixing a tube body such as a sprinkler unwinding pipe to a structure of a building such as a lightweight steel frame.

  When a fire occurs, for example, in a sprinkler facility that sprinkles water in a building to extinguish the fire, for example, a sprinkler head disposed on the indoor ceiling and a fire extinguishing pipe disposed on the back side of the ceiling are connected by a sprinkler unwinding pipe. Since the sprinkler head is attached to the top end of the sprinkler unwinding pipe, it is necessary to fix the top end of the sprinkler unwinding pipe to the building structure in order to facilitate the installation. is there. Specifically, the sprinkler unwinding pipe is fixed to a structure made of a lightweight steel member called a square bar, and, for example, both ends of the square bar are fixed to a building frame structure such as a lightweight steel frame. In this case, the extension direction of the square bar is orthogonal to the longitudinal direction of the sprinkler unwinding pipe, that is, the tubular body.

  As a tubular body fixing structure for fixing the sprinkler unwinding pipe to the square bar, for example, there is one described in Patent Document 1 below. The tubular body fixing structure includes a rotation preventing tool that is fixed to the outer peripheral surface of the tubular body, and a tubular body fixing tool that fixes the tubular body to the structural body at the portion of the rotation preventing tool. Among these, the rotation preventing tool is a cylindrical member made of polypropylene resin, and is fixed to the outer periphery of the tubular body in an immobile state. In this anti-rotation tool, a plurality of concave grooves for stopper are provided along the longitudinal direction of the tubular body.

  On the other hand, the tube fixing tool is provided with a substantially semicircular cross-section sandwiching portion that is fitted on the outer periphery of the anti-rotation device secured to the tube body, and opposed to the sandwiching portion. And a fastening portion for pressing a structure such as a square bar to the tube body and the rotation prevention tool, and only a part of the sandwiching portion and the fastening portion is connected, and a structure such as a square bar is provided in the remaining portion. A tube body that is sandwiched between the sandwiching portions and a notch portion for inserting the body between the rotation prevention tool and the fastening portion are provided.

  A screw member such as a butterfly bolt is screwed to the fastening portion such that the tip end portion of the screw shaft portion faces the clamping portion. Further, a stopper projection that fits in the stopper groove of the anti-rotation device projects inward from the clamping portion. Therefore, when a cylindrical anti-rotation tool fixed to the tube is inserted into the clamping part, a structure such as a square bar is inserted between the clamping part and the fastening part through the notch, and the screw member is tightened, The tip of the screw shaft portion of the screw member abuts on a structure such as a square bar, and the structure such as the square bar is pressed against the tube in the rotation prevention tool by the thrust of the screw. At this time, the stopper protrusions of the clamping part are fitted into the stopper recesses of the rotation prevention tool, and the rotation prevention tool and the tube are restricted from rotating. The structure is pressed against the tube through the rotation prevention tool, and both are fixed.

Japanese Patent No. 3465123

  However, in the tubular body fixing structure described in Patent Document 1, since a rotation prevention tool made of resin is interposed between the tubular body and the tubular body fixture, the tubular body is caused by aging degradation or deformation of the resin. May not be firmly fixed. Further, since the structure such as the square bar is directly pressed at the tip of the screw shaft portion of the screw member, there is a problem that the structure such as the square bar is deformed or damaged.

  The present invention has been made in view of the above problems, and its purpose is to make it possible to securely fix a tubular body to a structure of a building while avoiding damage to the structure of the fixing destination. It is to provide a fixed structure.

The tube fixing structure of the present invention for achieving the above object is
In a tubular body fixing structure including a tubular body fixture that is secured to a building structure that extends in a direction perpendicular to the longitudinal direction of the tubular body while the tubular body is held, And a cross section having two opposing plate portions connected to each other by a back plate portion with a gap capable of receiving the structure, provided with an engaging portion having at least one of a convex portion and a concave portion. A U-shaped main body member, a screw member having a screw shaft portion screwed to the back plate portion so as to be rotatable from the outside, and an interposition between a tip portion of the screw shaft portion of the screw member and the structure. A stress reducing member that is inserted into the two opposing plate portions in a direction orthogonal to the structure of the building while being fixed to the structure of the building. A notch is formed, and the inner periphery of the notch is connected to the engaging portion in a state where the tube is inserted. Combined, wherein the rotation regulating portion for regulating the rotation around the axis of the tubular body is provided.

  According to this configuration, the structure body such as the square bar is inserted into the gap between the opposing plate portions of the main body member, and then the tubular body arranged to penetrate the two opposing plate portions, that is, the structure body When a tubular body that is long in the direction perpendicular to the extension direction is inserted into the notch from the outside of the gap and the screw member is tightened from the outside of the gap in that state, the tip of the screw shaft portion of the screw member is a stress reducing member. Further, the structure is pressed against the outer peripheral surface of the tubular body by the thrust of the screw. At this time, the engagement portion of the tubular body is engaged with the rotation restricting portion formed on the inner periphery of the notch portion, and the rotation around the axis of the tubular body is restricted. When the screw member is further tightened in this state, the structure is pressed against the tubular body by the thrust of the screw via the stress reducing member, and both are fixed. Since the resin does not intervene between the pipe body and the structure body, various problems due to aging degradation and deformation of the resin can be avoided, and the pipe body can be securely fixed to the building structure body. In addition, since the stress reducing member is interposed between the tip of the screw shaft portion of the screw member and the structure, the stress due to the thrust of the screw is reduced, and the structure is not deformed or damaged. .

  According to another configuration of the present invention, the stress reducing member includes a plate member formed in a U-shaped cross-section in which opposing arm portions are connected by a connecting portion, and one of the arm portions is the gap. The screw shaft portion of the screw member is inserted into the other arm portion outside the back plate portion while being inserted into the other arm portion, and the tip end portion of the screw shaft portion of the screw member is disposed opposite to the one arm portion. It is characterized by being.

  According to this configuration, when the screw member is tightened, the tip end portion of the screw shaft portion of the screw member comes into contact with one arm portion, and the one arm portion is pressed against a structure such as a square bar. Since the arm portion is made of a plate member, the transmission area of the pressing force is increased and the stress acting on the structure is reduced as compared with the case where the tip end portion of the screw shaft portion is in direct contact with the structure. The structure is not deformed or damaged.

  In a further configuration of the present invention, the one end of the stress reducing member is inserted into the gap at the end of the back plate on the side opposite to the side where the one arm is inserted into the gap. A regulating convex plate part that regulates the position of the structure is bent toward the housing part side.

  According to this configuration, the fixing (position) of the structure such as the square bar and the tube includes a contact point between the tube and the inner periphery of the notch (including a contact point between the engagement portion and the rotation restricting portion). ), A contact point between the stress reducing member and the structure, and a contact point between the back plate portion and the structure, the back plate is used to secure the stroke of the screw shaft portion of the screw member. When the distance between the part and the structure is long, the bending direction tip of the regulating convex plate part comes into contact with the structure, and the contact point between the two is instead of the contact point between the back plate part and the structure. Thus, the fixing (position) between the structure and the tube is ensured.

  A further configuration of the present invention is characterized in that at least one of the convex portion and the concave portion is formed continuously in the longitudinal direction of the tubular body.

  According to this configuration, although at least one of the convex portion and the concave portion provided on the outer peripheral surface of the tubular body is formed only at a specific location in the longitudinal direction of the tubular body, the above action is ensured. Since the fixing points of the body and the building structure are often shifted in the longitudinal direction of the tubular body, by forming at least one of the convex part and the concave part continuously in the longitudinal direction of the tubular body, Even if it deviates in the longitudinal direction of the tube body, the rotation of the tube body can be reliably regulated.

  According to a further configuration of the present invention, when a plurality of the convex portions are provided along the circumferential direction of the tubular body, the distal end portion of the convex portion when viewed from the longitudinal direction of the tubular body is in a radial direction of the tubular body. The asymmetrical triangular shape is characterized in that the convex portions are arranged so that the tip portions of the adjacent convex portions are opposite to each other.

  According to this configuration, the tip portion of the substantially triangular convex portion has a sharp side in the tube circumferential direction as viewed from the tube longitudinal direction and a side that is not so, and the tip portions of the adjacent convex portions are opposite to each other. By arranging these convex portions in such a manner, the sharp sides of the tip portions of adjacent convex portions are opposite to each other. The sharp tip portions of these adjacent convex portions opposite to each other are in contact with the rotation restricting portion such as the housing concave portion formed in the inner periphery of the notch portion in the opposite direction. Even if it tries to rotate in this direction, the rotation is reliably regulated.

  As described above, according to the tube fixing structure according to the present invention, since there is no resin between the tube and the structure, problems due to aging and deformation of the resin are avoided, and the fixing destination Without damaging the structure, the tube can be securely fixed to the structure of the building, which allows the sprinkler head to be stably attached to and removed from the tube constituting the sprinkler unwinding pipe. it can.

It is a perspective view which shows one Embodiment of the tube fixing tool used for the tube fixing structure of this invention. It is a front view of the tube fixing tool of FIG. It is a perspective view which shows one Embodiment of the tubular body used for the tubular body fixing structure of this invention. It is the front view and sectional drawing of the tubular body of FIG. It is explanatory drawing of the tube fixing method using the tube fixing tool of FIG. 1 and the tube of FIG. It is a partial cross section front view of the tube fixing structure constructed | assembled by the tube fixing method of FIG. It is a perspective view of the tube fixing structure of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a tube fixing structure of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a tube fixture 2 used in the tube fixing structure of this embodiment, and FIG. 2 is a front view of the tube fixture 2 of FIG. The tube fixture 2 includes a body member 10 made of a metal plate member, a stress reduction member 20 made of the same metal plate member, and a screw member 30 made of a butterfly bolt. In addition, the dashed-two dotted line described in FIG. 1 is the said square bar 1 which comprises the structure of a building in this embodiment, specifically, a kind of lightweight steel frame member. The square bar 1 is formed of a metal so-called square pipe having a square closed cross section. A tubular body, that is, a sprinkler unwinding pipe 4 (specifically, a pipe member 41 to be described later) is fixed to the square bar 1 with the tubular body fixture 2, and both ends of the square bar 1 are, for example, a building It is fixed to a frame structure (not shown) such as a beam. Since the sprinkler unwinding pipe 4 of this embodiment includes the flexible pipe 42, pipe bending is included, but the end of the ceiling side of the sprinkler unwinding pipe 4 is substantially orthogonal to the ceiling, Since the square bar 1 extends in the lightweight steel frame direction, the longitudinal direction of the sprinkler unwinding pipe 4 and the extension direction of the square bar 1 are orthogonal to each other at the fixed portion.

  The main body member 10 is a metal plate material having a U-shaped cross section in which two opposing plate portions 11 are connected by a back plate portion 12, for example, a steel plate material. They are spaced apart by providing a gap 13 that is tightly accommodated. In addition, one end of the back plate 12 in the continuous direction is bent toward the gap 13, and a square regulating convex plate 14 that protrudes from the back plate 12 by a predetermined dimension is provided. Moreover, the substantially square vicinity of the left side part and the lower side part of FIG. 2 of the opposing plate part 11 is connected in an L shape as a whole, and bulges in an arc cross section on the opposite side to the gap 13, thereby forming an L shape. Reinforcing ribs 15 are formed. As is well known, for example, when a metal plate material is bulged and a rib is plastically processed, the section modulus increases due to a change in the thickness element due to the unevenness, and the mechanical strength is improved.

  In this embodiment, for example, as shown in FIG. 7, the pipe body, that is, the sprinkler unwinding pipe 4 is fixed so as to penetrate the two opposing plate portions 11. Therefore, the two opposing plate portions 11 are formed with a notch portion 17 into which the sprinkler unwinding pipe 4 penetrating the opposing plate portions 11 is inserted away from the back plate portion 12 by a predetermined distance. An accommodation portion 16 for accommodating the sprinkler unwinding pipe 4 is formed at a distal end portion in the forming direction 17 so as to be spaced apart from the back plate portion 12 by a predetermined distance so that the notch portion 17 is slightly depressed. The notch 17 is provided along the continuous direction of the back plate 12 from the outside of the gap 13 to the sprinkler unwinding pipe 4 arranged in a direction penetrating the counter plate 11 simultaneously with the purpose of forming the accommodating portion 16. And also serves as a passage for inserting into the accommodating portion 16. A recess 48 is formed in the notch 17, particularly in the inner periphery of the accommodating portion 16, particularly in a portion opposite to the back plate 12, similar to the accommodating recess 18 in which a convex portion 47 of a sprinkler unwinding pipe 4 described later is accommodated. The insertion convex portions 19 inserted into the inner portions are alternately formed, and the accommodating concave portions 18 and the insertion convex portions 19 constitute a rotation restricting portion. The accommodation recess 18 and the insertion protrusion 19 of this embodiment are formed at the same pitch, and the shapes of both are substantially equal triangles. In addition, the notch part 17 may be the accommodating part 16 of the sprinkler unwinding pipe 4 as it is. Further, the right portion of the accommodating portion 16 below the notch portion 17 in FIG.

  The screw member 30 is screwed from the outside of the gap 13 into a screw hole 31 formed in the back plate portion 12 in the vicinity of the end portion on the opposite side to the side where the regulation convex plate portion 14 is bent. Has been. In this embodiment, since the screw member 30 made of a butterfly bolt is used, the screw member 30 can be rotated from the outside of the gap 13 of the tube fixture 2. In addition, the screw hole 31 of the backplate part 12 was formed with what is called a burring tap. As is well known, the burring tap is a technique in which a metal plate material with a prepared hole is bulged into a burring shape (convex shape) and a screw hole 31 is processed inside the metal plate material. A screw hole 31 into which 30 screw shaft portions can be screwed can be formed.

  The stress reducing member 20 is a U-shaped metal plate material in which two opposing arm portions 21 are connected by a connecting portion 22, for example, a steel plate material. The stress reducing member 20 is bent in series with a plate width that enters the gap 13. Of the two arm portions 21, one arm portion 21 is used by being inserted into the gap 13 from the side opposite to the regulating convex plate portion 14. Of the two arm portions 21, the other arm portion 21 is formed with an insertion hole 23 through which the screw shaft portion 32 of the screw member 30 is inserted. The stress reducing member 20 has a screw shaft of the screw member 30 in an insertion hole 23 formed in the other arm portion 21 in a state where the one arm portion 21 is inserted into the gap 13 between the opposing plate portions 11. The portion 32 is inserted and used outside the back plate portion 12, and as a result, the tip end portion of the screw shaft portion 32 of the screw member 30 is disposed opposite to the one arm portion 21.

  3 is a perspective view of a sprinkler unwinding pipe 4 used as a pipe body in this embodiment, and FIG. 4 is a front view and a cross-sectional view of the sprinkler unwinding pipe 4 of FIG. Is a front view, and FIG. 4B is a cross-sectional view taken along line AA of FIG. Most of the sprinkler unwinding pipe 4 is composed of a flexible pipe 42. The flexible pipe 42 is formed of a bellows-like metal tube, and a metal mesh 43 is coated on the outside thereof, and is fixed by caulking rings 44 at both ends of the flexible pipe 42. The mesh 43 regulates the extension of the flexible pipe 42. A rotating nipple 45 for connecting to a fire extinguishing pipe disposed on the back of the ceiling is attached to the right end of the flexible pipe 42 in FIG.

  A steel pipe member 41 for fixing the sprinkler unwinding pipe 4 to the square bar 1 is integrally connected to the flexible pipe 42 at the left end of the flexible pipe 42 in FIG. A screw hole 49 for connecting a sprinkler head (not shown) is formed at a left end portion of the figure 41, and a ring member 46 having a two-sided flat shape is attached to the outside thereof. And the convex part 47 and the recessed part 48 are alternately provided in the outer peripheral surface of the pipe member 41 along the circumferential direction, and these convex part 47 and the recessed part 48 comprise the engaging part. Each of the convex portion 47 and the concave portion 48 is not completely connected, but is formed to some extent in the longitudinal direction of the tube member 41, and is provided side by side in the longitudinal direction of the tubular body. Specifically, the convex portion 47 and the concave portion 48 are formed by raising the convex portion 47 by pressing the tube and plasticizing the concave portion 48. In this embodiment, the tip portion of the convex portion 47 formed as a result is formed so as to have a substantially triangular shape that is asymmetric with respect to the radial direction of the tube as viewed from the longitudinal direction of the tube. Further, the convex portions 47 are arranged so that the asymmetrical substantially triangular fields at the tips of the adjacent convex portions 47 are opposite to each other.

  As is apparent from FIG. 4B, when the tip of the convex portion 47 is asymmetrical with respect to the longitudinal direction of the tubular body, the distal end is sharp in the circumferential direction of the tubular body as viewed from the longitudinal direction of the tubular body. There are sides and other sides. Therefore, by arranging the convex portions 47 so that the tip portions of the adjacent convex portions 47 are opposite to each other, the sharp sides of the tip portions of the adjacent convex portions 47 are opposite to each other. As will be described later, the convex portion 47 is accommodated in the accommodating recess 18 around the accommodating portion 16. Accordingly, the sharp tip portions of the adjacent convex portions 47 abut against the accommodating concave portion 18 in opposite directions.

  When the sprinkler unwinding pipe 4 of FIG. 3 is fixed to the square bar 1 using the tube fixing tool 2 of FIG. 1, for example, as shown in FIG. 5A, the screw member 30 is sufficiently loosened. In a state in which one arm portion 21 of the stress reducing member 20 is close to the back plate portion 12, the accommodating portion 16 and the back plate portion 12 (regulating convex plate portion 14) are formed in the gap 13 between the two opposed plate portions 11. (Including the sprinkler unwinding pipe 4 shows a cross section of the pipe member 41). As described above, since the extension direction of the square bar 1 and the longitudinal direction of the pipe member 41 of the sprinkler unwinding pipe 4 are orthogonal to each other, the pipe member 41 is continuously connected to the back plate portion 12 from the outside of the gap 13. It inserts into the notch part 17 of the two opposing board parts 11 along a direction, and as shown in FIG.5 (b), the pipe | tube fixing tool 2 until the pipe member 41 of the sprinkler unwinding piping 4 is located in the accommodating part 16. As shown in FIG. To move.

  When the pipe member 41 of the sprinkler unwinding pipe 4 is moved to the position of the accommodating portion 16, for example, as shown in FIG. 5B, the square bar 1 is pressed against the pipe member 41 to accommodate the outer peripheral surface of the pipe member 41. It is made to contact | abut to the circumference | surroundings of the part 16, specifically the part on the opposite side to the backplate part 12. FIG. In this state, when the screw member 30 made of a butterfly bolt is tightened, the tip end portion of the screw shaft portion 32 of the screw member 30 comes into contact with one arm portion 21 of the stress reducing member 20, and the screw member 30 is further tightened. Thus, the square bar 1 is pressed against the outer peripheral surface of the pipe member 41 by the thrust of the screw. At this time, for example, as shown in FIG. 6, the convex portion 47 of the outer peripheral surface of the tube member 41 is accommodated in the accommodating concave portion 18 formed around the accommodating portion 16, or the insertion convex portion 19 is the outer periphery of the pipe member 41. Inserting into the concave portion 48 of the surface, that is, the engaging portion of the tube member 41 and the rotation restricting portion of the notch portion 17 are engaged, and the rotation of the tube member 41 is restricted and positioned. When the screw member 30 is further tightened in this state, as shown in FIG. 7, the square bar 1 is pressed against the tube member 41 by the thrust of the screw through one arm portion 21 of the stress reducing member 20, and both are Fixed.

  At this time, the convex portion 47 of the pipe member 41 is accommodated in the accommodating concave portion 18 around the accommodating portion 16, but as described above, the sharp tip portions of the adjacent convex portions 47 are opposite to each other in the circumferential direction. It comes into contact with the housing recess 18. As described above, when the sprinkler head is attached to or removed from the tube member 41, a rotational force acts in both directions in the circumferential direction. However, the sharp tips of the adjacent convex portions 47 abut against the accommodating portion 16 in opposite directions, so that the rotation of the tube member 41 can be performed regardless of the circumferential direction. Regulated reliably and stable posture. Moreover, since the front-end | tip part of the screw shaft part 32 of the screw member 30 touches the corner bar 1 through the one arm part 21 of the stress reduction member 20, it can prevent a deformation | transformation and a damage | wound of the corner bar 1. .

  Further, the fixing (position) of the square bar 1 and the sprinkler unwinding pipe 4 is a contact point between the pipe member 41 of the sprinkler unwinding pipe 4 and the periphery of the accommodating portion 16 (the contact point between the convex portion 47 and the accommodating concave portion 18, Or a contact point between one arm portion 21 of the stress reducing member 20 and the corner bar 1, and a contact point between the back plate portion 12 and the corner bar 1. Although secured at three points, as in this embodiment, in order to ensure the stroke of the screw shaft portion 32 of the screw member 30, when the distance between the back plate portion 12 and the square bar 1 becomes long, The front end portion of the regulation convex plate portion 14 in the bending direction contacts the corner bar 1, and the contact point between the two becomes a contact point between the back plate portion 12 and the corner bar 1, and the corner bar 1 and the pipe member 41. Is secured (position).

  Thus, according to the tubular body fixing structure of this embodiment, the square bar 1 is inserted into the gap 13 between the opposing plate portions 11 of the main body member 10 and then arranged so as to penetrate the two opposing plate portions 11. The pipe member 41 of the sprinkler unwinding pipe 4 that is provided, that is, in a direction orthogonal to the extending direction of the square bar 1, is inserted from the outside of the gap 13 through the notch portion 17 to the accommodating portion 16, and in this state, the gap 13 When the screw member 30 is tightened from the outside, the tip end portion of the screw shaft portion 32 of the screw member 30 comes into contact with one arm portion 21 of the stress reducing member 20, and the square bar 1 is moved to the tube member 41 by the thrust of the screw. It is pressed against the outer peripheral surface. At this time, the convex portion 47 on the outer peripheral surface of the tubular body is accommodated in the accommodating concave portion 18 formed around the accommodating portion 16, or the insertion convex portion 19 is inserted into the concave portion 48 on the outer peripheral surface of the tubular body. The rotation of the tube member 41 is restricted. In this state, when the screw member 30 is further tightened, the square bar 1 is pressed against the tube member 41 by the thrust of the screw via the one arm portion 21 of the stress reducing member 20, and both are fixed. Accordingly, since no resin is interposed between the pipe member 41 and the square bar 1, problems due to aging and deformation of the resin can be avoided, and the pipe can be reliably fixed to the building structure.

  Moreover, even if the convex part 47 and the recessed part 48 provided in the outer peripheral surface of the pipe member 41 of the sprinkler unwinding piping 4 are formed only in the specific location of a pipe body longitudinal direction, the effect | action which controls rotation of the pipe member 41 is the same. Although secured, the fixing location of the pipe member 41 and the square bar 1 is often shifted in the longitudinal direction of the pipe body. Therefore, by forming the convex portion 47 and the concave portion 48 continuously in the tube body longitudinal direction, the rotation of the tube member 41 can be reliably restricted even if the fixing points of both are displaced in the tube body longitudinal direction.

  As mentioned above, although embodiment was described, the structure of this invention is not limited to these embodiment, A various deformation | transformation is possible within the range of the summary of invention. For example, in the above-described embodiment, both the convex portion 47 and the concave portion 48 are provided as engaging portions on the outer peripheral surface of the pipe member 41 of the sprinkler unwinding pipe 4, and around the accommodating portion 16 of the tubular body fixture 2. Although both the housing concave portion 18 and the insertion convex portion 19 are provided as rotation restricting portions, for example, even if only the convex portion 47 is provided on the tube member 41 side, and only the housing concave portion 18 is provided on the tube body fixture 2 side, The rotation of the tube member 41 can be restricted even if only the concave portion 48 is provided on the tube member 41 side and only the insertion convex portion 19 is provided on the tube body fixture 2 side.

  Moreover, in the said embodiment, although the pipe fixing structure of this invention was used only for the fixation of the sprinkler unwinding piping 4 and the square bar 1, the pipe fixing structure of this invention is the longitudinal direction of a pipe, and a building. As long as both the fixing parts in the case where the extending directions of the structure are orthogonal to each other, the structure can be applied to various fixing parts.

  In the above-described embodiment, the stress reducing member is formed by bending the plate member into a U-shaped cross section. This stress reducing member is interposed between the tip of the screw shaft portion of the screw member and the structure. As long as the stress acting on the structure is reduced, any type of stress may be used.

1 Square bar (structure)
2 Tubing fixture 4 Sprinkler unwinding piping (tubing)
DESCRIPTION OF SYMBOLS 10 Main body member 11 Opposite board part 12 Back board part 13 Crevice 14 Control convex board part 16 Storage part 17 Notch part 18 Storage recessed part (Rotation control part)
19 Insertion convex part (rotation restricting part)
DESCRIPTION OF SYMBOLS 20 Stress reduction member 21 Arm part 22 Connection part 23 Insertion hole 30 Screw member 31 Screw shaft part 41 Tube member (tube body)
47 Convex part (engagement part)
48 Recess (engagement part)

Claims (5)

In a tubular body fixing structure including a tubular body fixture that is fixed in a state where the tubular body is held in a structure of a building that extends in a direction orthogonal to the longitudinal direction of the tubular body,
An engaging portion having at least one of a convex portion and a concave portion is provided on the outer peripheral surface of the tubular body,
The tube fixing tool is:
A body member having a U-shaped cross section having two opposing plate portions connected by a back plate portion with a gap that can receive the structure;
A screw member in which a screw shaft portion is screwed to the back plate portion so as to be rotatable from the outside;
A stress reducing member interposed between the tip of the screw shaft portion of the screw member and the structure;
The two opposing plate portions are formed with notches for inserting the pipe body in a direction orthogonal to the building structure in a state of being fixed to the building structure,
The inner periphery of the notch is provided with a rotation restricting portion that engages with the engaging portion in a state in which the tubular body is inserted and restricts rotation around the axis of the tubular body. Tube fixing structure.   The stress reducing member is a plate member that is bent in a U-shaped cross section in which opposing arm portions are connected by a connecting portion, and one of the arm portions is inserted into the gap while the other of the The screw shaft portion of the screw member is inserted into the arm portion outside the back plate portion, and the tip end portion of the screw shaft portion of the screw member is arranged to face the one arm portion. The tube fixing structure described in 1.   A restriction that regulates the position of the structure inserted into the gap at the end of the back plate on the side opposite to the side where the one arm of the stress reducing member is inserted into the gap. The tubular body fixing structure according to claim 1, wherein the convex plate portion is bent toward the housing portion.   The tube fixing structure according to any one of claims 1 to 3, wherein at least one of the convex portion and the concave portion is formed continuously in a longitudinal direction of the tube body.   When a plurality of the convex portions are provided along the circumferential direction of the tubular body, the tip of the convex portion when viewed from the longitudinal direction of the tubular body is a substantially triangular shape that is asymmetric with respect to the radial direction of the tubular body, 2. The tubular body fixing structure according to claim 1, wherein the convex portions are arranged so that the tip portions of the adjacent convex portions are opposite to each other.

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