JP2011214236A - Fixing implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing implement for fixing a pipe body in a through-hole formed in a foundation of a building, which can easily screen a gap portion made between the pipe body and the foundation, without use of a sealant such as mortar.SOLUTION: This fixing implement 1 for fixing the pipe body in the through-hole formed in the foundation of the building is a tubular member which is formed of an elastic material. The fixing implement 1, which is equipped with a slit-like contact/separation portion 5 ranging from a first end 2 to a second one 3, can be attached to the outer peripheral surface of the pipe body from the radial outside of the pipe body by putting the contact/separation portion 5 into a separated state. A tapered surface 4, the diameter of which is reduced toward the side of the second end 3 from the side of the first end 2, is formed on the outer peripheral surface of the fixing implement 1.

Description

  The present invention relates to a fixing jig for fixing a tubular body in a through hole formed in a foundation of a building.

  When constructing the foundation of a building, a pipe body such as a guide pipe that accommodates water supply / drainage pipes and cables may be installed through the foundation. In this case, the tube body is installed on the foundation by forming a through hole larger than the outer diameter of the guide tube in advance and inserting the tube body into the through hole. In addition, the gap between the tube and the foundation in the through hole can be a path for white ants to enter the indoor side, so the entire gap is filled with a sealing material such as mortar to shield the gap. It is generally done.

  For example, in the construction method disclosed in Patent Document 1, the construction of the foundation and the installation of the pipe body with respect to the foundation are performed as follows. First, a foundation having a through hole is constructed by placing concrete in the mold with a through sleeve arranged at a predetermined position in the foundation mold. Next, a backup member made of sponge or urethane material is packed in the gap portion formed between the tube body and the foundation to fix the tube body to the foundation, and further, the gap portion is filled with a sealing material to shield the gap portion. To do. According to the construction method of Patent Document 1, since the backup member is packed in the gap portion formed between the tube body and the foundation, the amount of the sealing material used can be reduced.

JP 2010-047952 A

  Although the construction method of patent document 1 has the advantage that the usage-amount of a sealing material can be reduced, the final shielding of the said clearance gap part is performed by filling with the sealing material. Filling the gap with the sealing material in a state where the tube is fixed at a predetermined position in the through-hole formed in the foundation is a very complicated operation, and the standing time until the sealing material is solidified. There is a problem that workability is poor because it is necessary.

  The present invention has been made in view of such conventional circumstances, and an object thereof is a fixing jig for fixing a tubular body in a through hole formed in a foundation of a building, such as a mortar. It is an object of the present invention to provide a fixing jig capable of easily shielding a gap portion generated between a tube body and a foundation without using a sealing material.

  In order to achieve the above object, a fixing jig according to claim 1 is a fixing jig for fixing a tubular body in a through hole formed in a foundation of a building, and is formed of an elastic material. The cylindrical member is provided with a slit-shaped contact / separation portion extending from the first end portion to the second end portion, and the contact / separation portion is separated from the radially outer side of the tubular body. The outer peripheral surface of the tubular body can be attached, and the outer peripheral surface is provided with a tapered surface that decreases in diameter from the first end portion side toward the second end portion side.

  The fixing jig of the present invention is inserted into the through hole of the foundation of the building by being press-fitted while being elastically deformed between the outer peripheral surface of the tubular body and the inner peripheral surface of the through hole. In addition to positioning the tubular body, the gap portion formed between the tubular body and the foundation is shielded. According to the configuration of the fixing jig of the present invention, it is possible to separate the slit-shaped contact / separation portion to open the fixing jig, and thereby the tube inserted into the through hole of the foundation A fixing jig can be easily attached to the outer peripheral surface of the body from the outside in the radial direction.

  When the fixing jig is press-fitted between the outer peripheral surface of the tubular body and the inner peripheral surface of the through hole, the taper surface formed on the outer peripheral surface of the fixing jig serves as a guide surface to facilitate the fixing jig. Can be press-fitted. Thus, according to the above configuration, the gap formed between the tube body and the foundation can be easily fixed while fixing the tube body in the through-hole formed in the foundation and without using a sealing material such as mortar. Can be shielded.

A fixing jig according to a second aspect is characterized in that, in the invention according to the first aspect, the contact / separation portion is formed to be inclined with respect to a radial line of the fixing jig.
In a state where the fixing jig is press-fitted between the outer peripheral surface of the tubular body inserted into the through hole and the inner peripheral surface of the through hole, a force that compresses the fixing jig inward and outward in the radial direction acts. Specifically, a force pressing the fixing jig radially inward acts on the outer peripheral surface side of the fixing jig, and a force pressing the fixing jig radially outward on the inner peripheral surface side. Works. At this time, if the contact / separation part is formed so as to be inclined with respect to the radial line of the fixing jig, the compressing force is a force that presses the contact / separation part at the part where the contact / separation part is formed. Acts as Thereby, in a state where the fixing jig is press-fitted between the inner peripheral surface of the through hole and the outer peripheral surface of the tubular body, the contacting / separating portion is in a state of being firmly in contact. Therefore, also in the site | part in which the contact / separation part was formed, the shielding function of a fixing jig can be ensured suitably.

  According to the fixing jig of the present invention, it is possible to easily shield a gap portion generated between the tube body and the foundation without using a sealing material such as mortar.

The perspective view of a fixing jig. (A) is sectional drawing of a fixing jig, (b) is a rear view of a fixing jig. Schematic which shows the attachment state of a fixing jig. The fragmentary sectional view around the contact / separation part of the fixing jig in the attached state.

Hereinafter, the fixing jig 1 of the present invention will be described with reference to the drawings.
The fixing jig 1 is formed in a cylindrical shape from an elastic material. The elastic material is not limited as long as it is a material having elasticity, but an elastomer can be particularly preferably used. Examples of the elastomer include a styrene-butadiene copolymer, a styrene-isoprene block copolymer, a styrene elastomer, an olefin elastomer, a vinyl chloride elastomer, a polyester elastomer, a polyurethane elastomer, and a polyamide elastomer. These elastic materials may be used alone, or may be used as a polymer blend or polymer alloy in which a plurality are combined. These elastic materials may be blended with various fillers and plasticizers.

  As shown in FIG. 1 and FIG. 2B, the fixing jig 1 includes a slit-shaped contact / separation portion 5 extending from the first end portion 2 to the second end portion 3, and through the contact / separation portion 5. A first contact surface 5a and a second contact surface 5b that face each other are provided. FIG. 2B is a view of the fixing jig 1 as viewed from the first end 2 side. The fixing jig 1 is capable of adjusting the distance between the contact / separation portions 5 by bending the whole, and an annular state in which the first contact surface 5a and the second contact surface 5b contact each other, and the first contact surface 5a and The second contact surface 5b can be deformed between the separated ring-opened state.

  As shown in FIG. 2B, the contact / separation portion 5 is formed so as to be inclined with respect to the radial line r of the fixing jig 1 (a line connecting the axis P and the tip of the first contact surface 5a). Yes. Specifically, the first contact surface 5a is formed in an inclined surface shape having an acute angle on the inner peripheral surface side, and the second contact surface 5b is formed in an inclined surface shape having an acute angle on the outer peripheral surface side. The inclination angle θ of the contact / separation portion 5 with respect to the radial line r of the fixing jig 1 is preferably in the range of 30 to 90 degrees, more preferably in the range of 40 to 80 degrees, and further preferably in the range of 60 to 70 degrees. It is a range. Further, the contact / separation portion 5 is formed so as to be inclined with respect to the axis P of the fixing jig 1 (see FIG. 3).

  As shown in FIG. 1 and FIG. 2A, a tapered surface 4 that is reduced in diameter from the first end 2 toward the second end 3 is formed on the outer peripheral surface of the fixing jig 1. The outer diameter of the maximum diameter portion of the tapered surface 4 in the fixing jig 1 is set to be equal to or larger than the inner diameter of the through hole provided in the foundation in the annular state where the contact / separation portion 5 is in contact. In addition, the outer diameter of the minimum diameter portion of the tapered surface 4 is set to be smaller than the inner diameter of the through hole. Further, the inner peripheral surface of the fixing jig 1 is formed in a curved surface having an inner diameter that is constant in the direction of the axis P. And the internal diameter of the internal peripheral surface of the fixing jig 1 is set so that it may become equal to the outer diameter of the pipe | tube used as attachment object in the cyclic | annular state which the contact / separation part 5 contact | abutted.

  For example, the fixing jig 1 of the present embodiment, after forming a cylindrical member by molding, for example, cuts a part of the peripheral wall of the cylindrical member to make the contact / separation portion 5, the first contact surface 5a, and the second It can be manufactured by forming the contact surface 5b. Alternatively, the fixing jig 1 can be formed by forming a plate member having an arcuate cross section by molding and rounding the plate member into a cylindrical shape.

Next, a method for fixing the tube body in the through hole formed in the foundation using the fixing jig 1 of the present embodiment will be described.
As shown in FIG. 3, first, a tubular body 12 such as a guide pipe that accommodates pipes and cables for water supply and drainage is inserted into the through hole 11 a of the foundation 11 installed on the ground 10. For example, a vinyl chloride pipe is used as the pipe body 12. Further, the inner diameter of the through hole 11 a of the foundation 11 is set to be larger than the outer diameter of the tube body 12.

  Next, the fixing jig 1 is attached to the outer peripheral surface of the tube body 12 on the outdoor side with respect to the foundation 11 with the second end portion 3 facing the through hole 11a. Specifically, the contact / separation part 5 is separated to bring the fixing jig 1 into the ring-opened state, and the contact / separation part 5 is applied to the outer peripheral surface of the tube body 12 and the fixing jig 1 is pushed into the through hole 11a. The fixing jig 1 can be attached to the tubular body 12 in a state of being inserted into the tube body 12 from the radially outer side.

  Then, the contacting / separating portion 5 of the fixing jig 1 is brought into contact with each other to form an annular state, and the fixing jig 1 is slid to the through hole 11a side with respect to the tubular body 12, and the fixing jig 1 is moved to the through hole 11a. Press fit inside. At this time, the taper surface 4 formed on the outer peripheral surface of the fixing jig 1 serves as a guide surface, so that the fixing jig 1 can be easily press-fitted into the gap portion between the through hole 11 a and the tube body 12. it can. Further, in a state where the fixing jig 1 is press-fitted into the through hole 11a, a force for compressing the fixing jig 1 inward and outward in the radial direction acts on the fixing jig 1 as shown in FIG. Specifically, a force F1 for pressing the fixing jig 1 toward the radially inner side acts on the outer peripheral surface side of the fixing jig 1, and the fixing jig 1 is radially outwardly pressed on the inner peripheral surface side. A force F <b> 2 that is pressed to the side acts. And the 1st contact surface 5a and the 2nd contact surface 5b will mutually press firmly, and will be in the state contact | abutted closely.

  Similarly, the fixing jig 1 is similarly attached to the tube body 12 on the indoor side of the foundation 11, and the tube body 12 is fixed to the central portion of the through hole 11a formed in the foundation 11 by being press-fitted into the through hole 11a. At the same time, the gap between the foundation 11 and the tube body 12 is shielded.

Next, operational effects in the present embodiment will be described below.
(1) The cylindrical fixing jig 1 formed of an elastic material includes a slit-shaped contact / separation portion 5 that extends from the first end portion 2 to the second end portion 3. As a result, it is possible to separate the contact / separation part 5 to bring the fixing jig 1 into the ring-opened state, and the radial direction with respect to the outer peripheral surface of the tubular body 12 inserted into the through hole 11a of the foundation 11 The fixing jig 1 can be easily attached from the outside.

  (2) A tapered surface 4 is formed on the outer peripheral surface of the fixing jig 1 to reduce the diameter from the first end 2 side toward the second end 3 side. As a result, when the fixing jig 1 mounted on the tube body 12 is slid and is press-fitted between the outer peripheral surface of the tube body 12 and the inner peripheral surface of the through hole 11a, the tapered surface 4 becomes the guide surface. Thus, the fixing jig 1 can be easily press-fitted. By pressing the fixing jig 1 between the outer peripheral surface of the tubular body 12 and the inner peripheral surface of the through hole 11a, a gap portion generated between the tubular body 12 and the foundation 11 can be shielded. Therefore, it is possible to prevent white ants from entering the indoor side.

  (3) The contact / separation part 5 is formed to be inclined with respect to the radial line r of the fixing jig 1. Thereby, the contact / separation part 5 can be firmly contacted in the state where the fixing jig 1 is press-fitted between the inner peripheral surface of the through hole 11 a of the foundation 11 and the outer peripheral surface of the tube body 12. Therefore, even if it is the site | part in which the contact / separation part 5 was formed, the shielding function of the fixing jig 1 can be ensured suitably. Further, when the contact / separation part 5 is formed to be inclined with respect to the radius line r of the fixing jig 1, the contact / separation part 5 is abutted as compared with the case where the contact / separation part 5 is formed so as to coincide with the radius line r. The area of the surface (the area of the first contact surface 5a and the second contact surface 5b) can be secured larger, and the shielding function in the contact / separation part 5 can be further improved.

  (4) The contact / separation part 5 is formed to be inclined with respect to the axis P of the fixing jig 1. Thereby, compared with the case where the contact / separation part 5 is formed so as to be parallel to the axis P of the fixing jig 1, the area of the contact surface (the first contact surface 5a and the second contact surface 5b). Can be ensured larger, and the shielding function in the contact / separation portion 5 can be further improved.

  In addition, the said embodiment can also be changed and actualized as follows. Moreover, it is also possible to change the said embodiment like the structure of the combination of the following modification example mutually.

The contact / separation part 5 may be formed so as to coincide with the radial line r of the fixing jig 1 or may be formed so as to be parallel to the axis P of the fixing jig 1.
-You may provide the contact / separation part 5 in multiple places. In this case, the fixing jig 1 is composed of a plurality of arc-shaped members, and has a cylindrical shape by combining the members in the circumferential direction.

  In the above embodiment, the first contact surface 5a and the second contact surface 5b are formed in a flat surface shape, but may be formed in an uneven surface shape. In this case, a larger area of the contact surfaces (first contact surface 5a and second contact surface 5b) in the contact / separation portion 5 can be secured.

  The same diameter part which makes the outer diameter constant in the direction of the axis P may be provided on the outer peripheral surface of the fixing jig 1. Further, the outer peripheral surface of the fixing jig 1 may be formed by a combination of the single or plural equal-diameter portions and the single or plural tapered surfaces 4.

In the above embodiment, the fixing jig 1 is attached to both the indoor side and the outdoor side of the foundation 11, but the fixing jig 1 may be attached only to one side of the foundation 11.
In the elastic material forming the fixing jig 1, a known ant preventive agent may be appropriately blended, or the surface of the fixing jig 1 may be coated with a known ant preventive agent.

Next, a technical idea that can be grasped from the above embodiment and another example will be described.
(A) a first contact surface and a second contact surface facing each other through the contact / separation portion, wherein the first contact surface is formed in an inclined surface shape having an acute angle on the inner peripheral surface side; The fixing jig according to claim 1, wherein the second contact surface is formed in an inclined surface shape with an outer peripheral surface side having an acute angle.

  (B) A fixing method for fixing a tubular body in a through hole formed in a foundation of a building, and after the tubular body is inserted into the through hole, the penetration in the outer peripheral surface of the tubular body The fixing jig according to claim 1 is mounted on both sides of the hole so that the second end thereof faces the through hole side, and the inner peripheral surface of the through hole and the outer peripheral surface of the tubular body A fixing method, wherein the fixing jig is press-fitted in between.

  (C) A tubular body fixing structure for fixing a tubular body in a through-hole formed in a foundation of a building, the outer peripheral surface of the tubular body inserted into the through-hole, and the inside of the through-hole The fixing structure according to claim 1, wherein the fixing jig is press-fitted between the peripheral surface and the fixing jig is press-fitted on both sides of the opening portion of the through hole.

  P ... axis, r ... radial line, 1 ... fixing jig, 2 ... first end, 3 ... second end, 4 ... tapered surface, 5 ... contacting / separating portion, 5a ... first contact surface, 5b ... 2nd contact surface, 11 ... foundation, 11a ... through-hole, 12 ... tube.

Claims (2)

A fixing jig for fixing a tubular body in a through hole formed in a foundation of a building,
A cylindrical member formed of an elastic material,
A slit-shaped contact / separation part extending from the first end part to the second end part is provided, and the contact / separation part is mounted on the outer peripheral surface of the tube body from the outside in the radial direction by separating the contact / separation part. Made possible
A fixing jig comprising a tapered surface on the outer peripheral surface, the diameter of which decreases from the first end side toward the second end side. The fixing jig according to claim 1, wherein the contact / separation part is formed to be inclined with respect to a radial line of the fixing jig.

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