JP2009221744A - Separator structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a separator structure that intercept heat conduction from an external wall surface to an internal wall surface regarding the separator structure embedded and left in a reinforced concrete structure. <P>SOLUTION: The separator structure is formed by joining a shaft rod 2 provided with one form fixed part 10 at one end, and an anchor bracket 3 provided with the other form fixed part 11 at the other end, to each other at a joint part of the anchor bracket 3. A heat insulating part 12 for joining the shaft rod 2 and the anchor bracket 3 while isolating them in heat conduction is disposed at the joint part. The heat insulating part 12 comprises: a metal nut 6 of horizontally projecting shape, funnel-shaped synthetic resin case 5 in which the nut 6 is embedded; and a synthetic resin cap 7 sealing the nut 6 embedded in the case 5. The nut 6 is entirely enclosed in synthetic resin, opening only a threaded hole 6a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is used for supporting a formwork at the time of pouring concrete, and it is left in the cast concrete layer and an interior material and an external heat insulator are respectively provided on the inner and outer wall surfaces of the reinforced concrete structure after the formwork is dismantled. The present invention relates to a separator structure that can be joined.

In addition to supporting and fixing both molds used in the construction of reinforced concrete structures, attachment of external heat insulators such as heat insulating materials to be attached to the outer wall surface of the reinforced concrete structure after dismantling the molds, provides a wide range of freedom. And the separator structure which can shorten a construction period is proposed by Unexamined-Japanese-Patent No. 2007-23536 (patent document 1), but the joining of the shaft bar buried in the reinforced concrete structure and the anchor bracket is directly screwed. Therefore, external heat is conducted to the shaft rod through the anchor bracket, and there is a risk of adverse effects such as condensation on the interior surface.
JP 2007-23536 A

  In the separator structure buried in the reinforced concrete structure, the present invention prevents a decrease in the heat insulating effect of the concrete frame due to the heat conduction of the separator structure that is used and held in large numbers for holding the formwork, and from the outer wall surface. A separator structure capable of blocking heat conduction to an inner wall surface is provided.

In the separator structure according to claim 1 of the present invention, the shaft rod provided with one mold fixing part at one end and the anchor bracket provided with the other mold fixing part at the other end are joined to the anchor bracket. In the separator structure that is joined to each other at the part,
A heat insulating portion for separating and joining the shaft rod and the anchor bracket in a thermally conductive manner is disposed at the joint portion.
The separator structure according to claim 2 of the present invention is the separator structure according to claim 1,
The heat insulating portion comprises a laterally convex metal nut, a synthetic resin funnel-like case in which the nut is embedded, and a synthetic resin cap that encloses the nut embedded in the case, The nut is opened only in the screw hole and embedded in a synthetic resin.

  In the separator structure of the present invention, the shaft rod and the anchor bracket are joined in a heat-insulating manner at the heat insulating portion, and external heat fluctuations are not conducted from the anchor bracket to the shaft rod, thus eliminating the occurrence of condensation in the room. In addition, the room temperature fluctuation is suppressed, the efficiency of air conditioning is improved, and the heat insulation effect of the concrete frame is not lowered.

  In the heat insulating part of the present invention, the metal nut is housed in a synthetic resin case and cap so that the anchor bracket and the shaft bar are joined in a heat-insulating manner, instead of the metal nut, the nut itself It is also possible to use molded products made of synthetic resins such as engineering plastic (engineering plastic) and super engineering plastic (super engineering plastic). Further, the tension applied to the shaft rod and the anchor bracket is resisted by a stepped portion having a right angle, which is adapted to the outline of the nut screwed to the shaft rod, and is resisted by a tapered stepped portion. .

The separator structure A of the present invention will be described with reference to an embodiment. As shown in FIG. 1, the structure of the separator structure A is a left end nut 1, a long screw portion 2 a to which the nut 1 is screwed at the left end portion, and a right end short portion. A large shaft rod 2 having a threaded portion 2b, a two-sided width portion 2c for rotation prevention that is recessed in the outer surface of the shaft portion between the long screw portion 2a and the short screw portion 2b, and a lateral truncated cone. An anchor bracket 3 with the diameter side facing the short screw portion 2b, and a case 5 with a synthetic resin lateral funnel shape housed in a hollow portion 4 penetrating the anchor bracket 3 and with the small diameter side facing the shaft 2 A laterally projecting metal nut 6 stored in the case 5, a cap 7 for enclosing the nut 6 in the case 5, and a pressing shaft 8 screwed into the hollow portion 4 and provided with a flange 8a around the right end. And a mounting bracket 9 provided in the holding shaft 8. The hollow portion 4 of the anchor bracket 3 has a female screw portion 4a screwed from the right end, a storage chamber 4b slightly smaller than the inner diameter of the female screw on the left side of the female screw portion 4a, and a smaller diameter than the diameter of the storage chamber 4b. A right-angled stepped portion 4c is formed to form a window portion 4d that opens to the left end, and a male screw 8b that is screwed to the female screw portion 4a is formed on the left side of the holding shaft 8, and the right end The flange 8a is provided with a lateral recess 8c having a required depth from the right end and having a required diameter. A female screw 8d extends from the center of the recess 8c to the left end. A small flange 9a that fits into the recess 8c of the flange 8a, a large screw shaft 9b that engages with the female screw 8d on the left side of the small flange 9a, and a set screw shaft 9c that protrudes to the right of the small flange 9a ( A smaller diameter than the large screw shaft 9b), and an oblong hole 9d for rotation is paired with the small flange 9a. It is penetrated by.
As shown in FIG. 2, one mold fixing part 10 is formed by a long screw part 2a of the shaft 2 and a nut 1 screwed into the long screw part 2a, and the other mold fixing part 11 is pressed. The heat insulating portion 12 includes a flange 8a of the shaft 8 and a set screw shaft 9c of the mounting bracket 9 in which the large screw shaft 9b is screwed to the female screw 8d while the small flange 9a is fitted in the recess 8c of the flange 8a. Has a case 5, a nut 6 which is stored in the case 5 and opens a screw hole 6 a at the left end thereof, and a projecting portion 7 a having a laterally projecting shape is fitted into the screw hole 6 a and a board body portion 7 b is fitted into the inner periphery of the case 5. It consists of a cap 7 to be worn.

  As shown in FIG. 2, the separator structure A formed in this way is formed with one mold fixing portion 10 by screwing the nut 1 to the left long screw portion 2 a of the shaft 2. The short screw portion 2 b on the right side of the shaft rod 2 is screwed to the nut 6 of the heat insulating portion 12 housed in the anchor bracket 3. The heat insulating portion 12 is positioned and fixed at the shaft end of the male screw 8b of the holding shaft 8 screwed to the female screw portion 4a of the anchor bracket 3, and the female screw 8d of the holding shaft 8 is formed by a hole 9d in the small flange 9a. The large screw shaft 9b to be rotationally fastened is screwed. Finally, the small flange 9a is fitted into the recess 8c of the flange 8a of the holding shaft 8, the mounting bracket 9 is joined in a steady state, and the flange 8a of the holding shaft 8 is joined. The other mold fixing portion 12 is formed by the set screw shaft 9c of the mounting bracket 9.

Therefore, in the separator structure A of the present invention, as shown in FIG. 3, the long screw portions 2a are inserted through the required positions of the left mold 13 positioned on the nut 1 of the one mold fixing portion 10. The set screw shafts 9c are inserted through the required positions of the right mold 14 positioned on the flange 8a of the other mold fixing section 11, and the long screw sections 2a from the outside of the respective molds 13, 14. The molds 13 and 14 are positioned by the shaft-like nuts 15 screwed to the set screw shafts 9c, and the vertical pipes and horizontal pipes arranged along the outer surfaces of the molds 13 and 14 are pressed. The gold 16 is pressed by a foam tie (registered trademark) 17 and is fastened and fixed by a nut 18 screwed into a screw shaft 15 a of a shaft-like nut 15.
In this way, both the molds 13 and 14 are positioned and fixed by the separator structure A, and the concrete is placed with appropriate reinforcing bars (not shown). At this time, the tension applied to the separator structure A is held by the step portion 4 c of the anchor bracket 3 at the heat insulating portion 12 integrated with the shaft 2.
As shown in FIG. 4, the reinforced concrete structure 19 in which the concrete is cast with the separator structure A buried, is disassembled with the molds 13 and 14 on both sides. An interior material (not shown) is joined, and an external heat insulator (not shown) such as a heat insulator or an exterior material is inserted into the set screw shaft 9c of the other mounting bracket 9 and joined with an appropriate nut.

In addition, as a means for joining the outer heat insulator (not shown) to the outer wall surface of the frame of the reinforced concrete structure 19, it is fitted into the recess 8c of the holding shaft 8 as shown in FIG. A metal fitting body 20b having a circular fitting portion 20a provided at one end and a convex and tapered paraboloid from the inner end of the fitting portion 20a, a set screw shaft 20c protruding from the right end thereof, A mounting bracket 20 comprising a washer 20d fitted to the screw shaft 20c and a large screw shaft 20e projecting from the left end of the fitting portion 20a of the fitting body 20b and screwed into the female screw 8d of the holding shaft 8 is provided. Used. The mounting bracket 20 is formed with a notch two-surface width portion 20f facing a part of the paraboloid of the bracket body 20b so that it can be rotated with a spanner.
Therefore, the mounting bracket 20 can attach a thick outer heat insulator, and is fitted and joined to the recess 8c of the flange 8a of the pressing shaft 8 with a steady steady state by the fitting portion 20a of the bracket body 20b. The outer heat insulator can be held with a large bending strength by the cross section where the paraboloid is formed. The outer heat insulating body is fastened and fixed with a nut screwed to the set screw shaft 20c via a washer 20d. In this case as well, the heat load conducted from the outside is blocked by the heat insulating portion 12.
Thus, since the mounting brackets 9 and 20 can be selected according to the specifications of the outer heat insulator, it is possible to immediately respond to the joining of various outer heat insulators, and the heat load from the outside can be blocked by the heat insulating portion 12, so that it can be used. The energy-saving effect is exhibited with a wide range of degrees of freedom.

  The separator structure of the present invention can be used for various types of external heat insulation in a state where it is buried in a reinforced concrete structure, and since it can block the heat load from the outside with the heat insulation part, it does not conduct to the indoor side via the shaft rod. Demand is greatly expected due to the stable indoor environment and energy saving effect.

Explanatory drawing of the decomposition | disassembly state of the separator structure A concerning this invention. The assembly explanatory drawing which cut the principal part of separator structure A longitudinally. Explanatory drawing of the formwork assembly by the separator structure A. FIG. Explanatory drawing which shows a part of the reinforced concrete structure 19 after formwork dismantling. Explanatory drawing which shows a part of the reinforced concrete structure 19 of the state which screwed the other attachment metal fitting 20 to the holding shaft 8 of the separator structure A. FIG.

Explanation of symbols

1: Nut 2: Shaft bar 2a: Long screw part 2b: Short screw part 2c: Width across flats 3: Anchor bracket 4: Hollow part 4a: Female screw part 4b: Storage chamber 4c: Step part 4d: Window part 5 : Case 6: Nut 6a: Screw hole 7: Cap 7a: Projection 7b: Panel body 8: Holding shaft 8a: Flange 8b: Male screw 8c: Recessed 8d: Female screw 9: Mounting bracket 9a: Small flange 9b: Large Screw shaft 9c: Set screw shaft 9d: Punch hole 10, 11: Formwork fixing part 12: Heat insulation part 13, 14: Formwork 15: Shaft nut 15a: Screw shaft 16: Presser foot 17: Form tie 18: Nut 19 : Reinforced concrete structure 20: Mounting bracket 20a: Insertion portion 20b: Bracket body 20c: Set screw shaft 20d: Washer 20e: Large screw shaft 20f: Notch width across flats A: Separator structure

Claims (2)

In the separator structure in which the shaft rod provided with one mold fixing part at one end and the anchor bracket provided with the other mold fixing part at the other end are joined to each other at the joint part of the anchor bracket.
A separator structure in which a heat insulating portion for separating and joining the shaft rod and the anchor bracket in a thermally conductive manner is disposed in the joint portion.   The heat insulating portion comprises a laterally convex metal nut, a synthetic resin funnel-like case in which the nut is embedded, and a synthetic resin cap that encloses the nut embedded in the case, The separator structure according to claim 1, wherein the nut is opened only in a screw hole and embedded in a synthetic resin.

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