JP2009257798A - Gap measuring gauge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gauge of a simple structure for easily and precisely measuring a gap between a concrete skeleton and a mortar layer. <P>SOLUTION: This gap measuring gauge 1 is a gauge for measuring the thickness of the gap 103 by being used in an outer-wall exfoliation preventive working method, etc. wherein an adhesive injection hole 104 is provided which is bored through the mortar layer 102 from the front surface side to the rear surface side thereof, and extends across the gap 103 between the rear surface side of the mortar layer 102 and the concrete skeleton 101 through the concrete skeleton 101, and a bond 105 is injected from the hole 104 into the gap 103 to bond the concrete skeleton 101 to the mortar layer 102. This gauge 1 comprises a plurality of gauge units 11, 12, 13, ... , each provided with a gap insertion part 22 inserted into the gap 103 on an end part of a shaft part 21 inserted into the hole 104. The respective gauge units 11, 12, 13, ... are formed so that their insertion parts 22 differ from each other in thickness. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gauge for measuring the thickness of a gap generated inside an outer wall of a building, for example, a gap generated at a boundary portion between a concrete frame and a mortar layer of a building.

  As shown in FIG. 16, a building such as a concrete building generally has a mortar layer 102 on the surface of a concrete frame 101, or a tile (not shown) is further attached to the surface of the mortar layer. Has been.

  In the above-mentioned building, as shown in FIG. 17, a gap 103 is generated at the boundary between the concrete frame 101 and the mortar layer 102, and when the gap 103 is enlarged, the mortar layer 102 may be peeled off from the concrete frame 101. There is.

In order to prevent the mortar layer from peeling off, as shown in FIGS. 18 to 20, an adhesive injection hole 104 is provided across the gap 103 from the surface of the mortar layer 102 and across the concrete casing 101, and the adhesive is bonded from the hole 104. An epoxy resin 105 as an agent is injected into the gap 103 to adhere the concrete casing 101 and the mortar layer 102 with the epoxy resin 105, and anchor bolts (anchor pins) 106 inserted into the holes 104 to fix the concrete casing 101 and the mortar layer. A method for preventing peeling of the outer wall joined with 102 has been developed. (For example, see Patent Document 1)
Japanese Patent Laid-Open No. 7-238690

  By the way, in the peeling prevention method of injecting the epoxy resin 105 and adhering the concrete casing 101 and the mortar layer 102, an amount of the epoxy resin corresponding to the thickness T of the gap 103 (see FIG. 17) and the bonding area. 105 needs to be injected.

  If the amount of the epoxy resin 105 to be injected is too small, the epoxy resin 105 does not function sufficiently as an adhesive. Moreover, when there is too much quantity of the epoxy resin 105 to inject | pour, there exists a possibility that the clearance gap 103 may expand with the pressure of the inject | poured epoxy resin 105. FIG.

  Therefore, in order to inject an appropriate amount of the epoxy resin 105, it is necessary to accurately measure and grasp the thickness T of the gap 103 and determine an optimal injection amount of the epoxy resin 105. However, since the gap 103 is on the inner side (back side) of the mortar layer 102, a scale is applied to the crack as in the case of measuring the crack on the outer side (front side) of the mortar layer 102, and the width and the like are visually checked. It cannot be measured.

  Therefore, conventionally, the measurement of the gap was performed using a measurement device using ultrasonic waves, but the measurement device has a complicated structure, is inconvenient to carry, and the cost of the measurement device is high. There was a problem.

  For this reason, whether or not the gap can be measured easily and accurately without using a measuring device having a complicated structure using ultrasonic waves or the like is performed. It was considered the biggest challenge above.

  An object of the present invention is to provide a clearance measurement gauge that is very easy to carry and that can easily and accurately measure a clearance between a concrete frame and a mortar layer.

According to the first aspect of the present invention, an adhesive injection hole is provided through the mortar layer from the front surface side to the back surface side, crossing a gap between the back surface side of the mortar layer and the concrete housing, and extending over the concrete housing. A gap measuring gauge that measures the thickness of the gap by using an adhesive such as an epoxy resin from the agent injection hole into the gap to prevent peeling of the outer wall that bonds the concrete frame and the mortar layer. ,
The measurement gauge is composed of a plurality of single gauges provided with a gap insertion part to be inserted into the gap at an end of a shaft part to be inserted into the hole, and each of these gauges has a thickness corresponding to the thickness of the gap insertion part. It is formed with a difference.

  According to a second aspect of the present invention, in the gap measurement gauge according to the first aspect, the shaft portion of each gauge unit is formed of a metal wire having a circular cross section, and the gap insertion portion is formed of a metal wire having a circular cross section. It is formed by pressing the end of the shaft portion to form a plate-like portion having a predetermined thickness, and then bending the portion into a substantially right angle or substantially U shape. A predetermined height protrudes from the outer peripheral surface of the shaft portion.

  According to a third aspect of the present invention, in the gap measurement gauge according to the first or second aspect, the gap insertion portion is formed at one end portion of the shaft portion, and the grip portion is formed at the other end portion.

  According to a fourth aspect of the present invention, in the gap measurement gauge according to the third aspect, the grip portion is formed by bending one end of a metal wire constituting the shaft portion into a ring shape.

  According to a fifth aspect of the present invention, in the gap measurement gauge according to the third or fourth aspect, a tag for displaying the thickness of the gap insertion portion is attached to the ring-shaped gripping portion.

  According to a sixth aspect of the present invention, in the gap measurement gauge according to any one of the third to sixth aspects, the ring-shaped gripping portions of the individual gauges are bundled with a bundling ring.

(1) The gap measuring gauge according to claim 1 attempts to determine whether or not the gap insertion portion can be inserted into the gap by sequentially inserting a plurality of gauges constituting the gap into the adhesive injection hole. And when the said gap | interval insertion part is inserted exactly in the said gap | interval, the thickness of the said gap | interval becomes guessable with the thickness of the said gap | interval insertion part.
(2) The gap measuring gauge according to claim 2 presses the end of a metal wire having a circular cross section to form a plate-like portion having a predetermined thickness, and the plate-like portion is substantially perpendicular or substantially U-shaped. By bending it into a plurality of pieces, a plurality of single gauges having different thicknesses of the gap insertion portion can be formed easily and easily. In addition, since the tip end portion of the gap insertion portion protrudes from the outer peripheral surface of the shaft portion by a predetermined height, the tip end portion of the gap insertion portion can be reliably inserted into the gap.
(3) In the gap measurement gauge according to claim 3, since the gap insertion portion is formed at one end of the shaft portion of the metal wire and the gripping portion is formed at the other end, the gap is measured by gripping the gripping portion. The insertion operation into the adhesive injection hole of the insertion portion and the insertion operation into the gap of the gap insertion portion can be easily performed.
(4) In the gap measuring gauge according to the fourth aspect, the grip portion can be formed integrally with the shaft portion by bending one end portion of the metal wire into a ring shape.
(5) The gap measurement gauge of claim 5 can easily confirm the thickness of the gap insertion portion by the tag attached to the ring-shaped gripping portion.
(6) In the gap measurement gauge according to claim 6, since the ring-shaped gripping portion of each gauge unit is bundled with a binding ring, the integrity of the gap measurement gauge consisting of a plurality of gauge units is secured, and the plurality of gauges It is possible to prevent the single body from separating and dissipating.

  FIG. 1 is an explanatory view showing a gap measuring gauge 1 of the present invention. The gap measuring gauge 1 is composed of first to sixth six single gauges 11 to 16.

  As shown in FIG. 2, the first to sixth gauge units 11 to 16 are provided at the shaft portion 21 to be inserted into the adhesive injection hole 104 (see FIG. 18) and the end portion of the shaft portion 21. In addition, a gap insertion portion 22 having a thickness T to be inserted into the gap 103 (see FIG. 18) is provided at a boundary portion between the concrete casing 101 and the mortar layer 102.

  The thickness T of the gap insertion part 22 of the first gauge unit 2 is 0.1 mm, the thickness T of the gap insertion part 22 of the second gauge unit 12 is 0.2 mm, and the gap insertion part of the third gauge unit 13 The thickness T of the gap insertion portion 22 of the fourth gauge unit 14 is 0.4 mm, and the thickness T of the gap insertion portion 22 of the fifth gauge unit 15 is 0. The thickness T of the gap insertion portion 22 of the sixth gauge unit 16 is 5 mm, and the thickness T of the gap insertion portion 22 of the first to sixth gauge units 11 to 16 is 0 with respect to each other. It is formed with a difference of 1 mm.

  A scale graduation 23 indicating the distance from the front surface 22 b of the gap insertion portion 22 is attached to the peripheral surface of the shaft portion 21. Further, a grip portion 24 is formed at the other end portion of the shaft portion 21.

  Next, an example of a method for manufacturing the first to sixth gauge units 11 to 16 will be described. As shown in FIG. 3, the shaft portion 21 of the first to sixth gauge units 11 to 16 is formed of a metal wire such as SUS304 having a circular cross section having a diameter of 1.5 mm.

  As shown in FIG. 4, after one end of the shaft portion 21 is pressed to form a plate-like portion 22 ′ having a thickness T of 0.1 mm to 0.6 mm, as shown in FIG. The gap insertion portion 22 is formed by bending the plate-like portion 22 ′ in a substantially U shape or substantially at a right angle.

  A height H1 of the gap insertion portion 22 is formed smaller than the diameter of the adhesive injection hole 104 so that it can be freely inserted into and removed from the adhesive injection hole 104. Further, the tip end portion 22 a of the gap insertion portion 22 protrudes from the outer peripheral surface 21 a of the shaft portion 21 by a predetermined height H 2, and at least the protruding portion enters the gap 103.

  As shown in FIG. 6, the grip portion 24 is formed by bending the end portion of the shaft portion 21 on the opposite side to the gap insertion portion 22 into a ring shape and coupling the end portion to the shaft portion 21 with a welded portion 25. Is formed. A tag 26 for displaying the thickness of the gap insertion portion 22 is attached to the ring-shaped grip portion 24.

  As shown in FIG. 1, the first to sixth gauge units 11 to 16 each have a ring-shaped grip portion 24 bundled with a binding ring 27 so that the gauge units 11 to 16 are not separated and dissipated. The unity as the gap measurement gauge 1 is achieved.

  Next, an example of how to use the gap measuring gauge 1 will be described. One of the first to sixth gauge units 11 to 16, for example, the sixth gauge unit 16 is selected, and as shown in FIG. 7, the tip of the gap insertion portion 22 of the sixth gauge unit 16 The portion 22 a is inserted while being pressed against the peripheral surface of the adhesive injection hole 104.

  When the gap 103 between the concrete housing 101 and the mortar layer 102 is smaller than the thickness 0.6 mm of the gap insertion portion 22 of the sixth gauge unit 16, the sixth gauge unit 16 is inserted into the gap 103. It can be seen that the gap insertion portion 22 cannot enter, and the gap 103 is 0.6 mm or less.

  Therefore, next, the fifth gauge unit 15 is selected, and the tip 22a of the gap insertion part 22 of the fifth gauge unit 15 is pressed against the peripheral surface of the adhesive injection hole 104 in the same manner as described above. insert. As a result, as shown in FIG. 8, if the tip 22a of the gap insertion portion 22 of the fifth gauge unit 15 enters the gap 103, the thickness of the gap 103 is 0.6 mm or less, 0.5 mm. It turns out that it is above.

  When the thickness of the gap 103 is determined, an appropriate amount of the adhesive 105 such as an epoxy resin to be injected into the adhesive injection hole 104 is calculated. An appropriate amount of the adhesive 105 to be injected is calculated in consideration of the thickness of the gap 103, the area of the adhesive that enters the gap 103, that is, the adhesive area, the diameter and depth of the adhesive injection hole 104, and the like.

  As shown in FIG. 9, the depth of the adhesive injection hole 104 is measured by the scale scale 23 by pressing the front surface 22 b of the gap insertion portion 22 against the bottom surface 104 a of the adhesive injection hole 104.

  Then, the calculated appropriate amount of the adhesive 105 is injected into the tip of the adhesive injection hole 104 by the nozzle 202 of the resin injector 201 as shown in FIG. By using, for example, the resin injector and nozzle of Japanese Patent No. 3585825 for the resin injector 201 and the nozzle 202, the adhesive 105 is injected into the adhesive injection hole 104 without generating a so-called air reservoir. . And as shown in FIG. 11, the adhesive agent 105 is inject | poured into the clearance gap 103 between the concrete frame 101 and the mortar layer 102 without excess and deficiency.

  After injecting the adhesive 105, as shown in FIG. 12, the anchor bolt 106 is inserted into the adhesive injection hole 104, and the concrete housing 101 and the mortar layer 102 are joined by the adhesive 105 and the anchor bolt 106, and the outer wall is peeled off. To prevent. Reference numeral 107 denotes a tile layer attached to the outside of the mortar layer 102. As shown in FIG. 13, a gap 108 may be generated between the mortar layer 102 and the tile layer 107. In this case, the gap measurement gauge 1 is used to measure the gap 108.

  In the said Example, although the case where it formed in the 1st-6th single gauge 11-11 with the metal wire of circular cross section was shown, as shown to FIG. 14, FIG. 15, predetermined | prescribed thickness Alternatively, the gap 24 may be formed by punching the metal plate and integrally forming the grip portion 24 and the shaft portion 21 and bending the tip of the shaft portion 21 in a substantially U shape or substantially at a right angle. In this case, the thickness value of the gap insertion portion 22 may be displayed on the surface of the grip portion 24. Reference numeral 23 denotes a scale scale indicating the distance from the front surface 22 b of the gap insertion portion 22, and reference numeral 28 denotes a hole for passing the binding ring 26.

  Moreover, in the said Example, although the case where the clearance measurement gauge 1 was comprised with the 1st-6th six gauge single-pieces 11-16 was shown, the number of the single gauges which comprise the clearance measurement gauge 1 is six. It is not limited to 3 or 7 or more. As the number of single gauges increases, the size of the gap can be measured accurately and over a wide range. Further, gap insertion portions 22 having different thicknesses may be formed at both end portions of the shaft portion 21.

The perspective view of a clearance measurement gauge. The perspective view of a gauge single-piece | unit. Explanatory drawing which shows an example of the manufacturing method of a gauge single-piece | unit. Explanatory drawing which shows an example of the manufacturing method of a gauge single-piece | unit. Explanatory drawing which shows an example of the manufacturing method of a gauge single-piece | unit. Explanatory drawing which shows an example of the manufacturing method of a gauge single-piece | unit. Explanatory drawing which shows the usage method of a clearance measurement gauge. Explanatory drawing which shows the usage method of a clearance measurement gauge. Explanatory drawing which shows the state which is measuring the depth of an adhesive injection hole with a clearance measurement gauge. Explanatory drawing which shows the state before inject | pouring an adhesive agent into an adhesive agent injection hole with a resin injector. Explanatory drawing which shows the state after inject | pouring an adhesive agent into an adhesive agent injection hole with a resin injector. Explanatory drawing which shows the state after inserting an anchor bolt into an adhesive agent injection hole. Explanatory drawing which shows the other usage example of a clearance measurement gauge. Explanatory drawing which shows the other example of the manufacturing method of a gauge single-piece | unit. Explanatory drawing which shows the other example of a gauge single-piece | unit. Sectional drawing of a concrete frame and a mortar layer. Sectional drawing of the state which the clearance gap generate | occur | produced between the concrete frame and the mortar layer. Sectional drawing which shows the state which provided the adhesive agent injection hole. Sectional drawing of the state which inject | poured resin to the adhesive agent injection hole. Sectional drawing of the state which inserted the anchor bolt in the adhesive agent injection hole which inject | poured resin.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Gap measurement gauge, 11-16 ... 1st-6th single-piece | unit, 21 ... Shaft part, 22 ... Gap insertion part, 23 ... Scale graduation, 24 ... Gripping part, 25 ... Welding part, 26 ... Tag, 27 DESCRIPTION OF SYMBOLS Bundling ring 101 ... Concrete frame, 102 ... Mortar layer, 103 ... Gap, 104 ... Adhesive injection hole, 105 ... Adhesive (epoxy resin), 106 ... Anchor bolt.

Claims (6)

An adhesive injection hole is provided through the mortar layer from the front surface side to the back surface side, across the gap between the back surface side of the mortar layer and the concrete housing, and across the concrete housing. A gap measurement gauge that measures the thickness of the gap, using the outer wall peeling prevention method for injecting the adhesive into the gap and bonding the concrete frame and the mortar layer, etc.
The measurement gauge is composed of a plurality of single gauges provided with a gap insertion part to be inserted into the gap at an end of a shaft part to be inserted into the hole, and each of these gauges has a thickness corresponding to the thickness of the gap insertion part. A gap measuring gauge characterized by being formed with a difference. The shaft portion of each gauge unit is formed of a metal wire having a circular cross section, and the gap insertion portion is a plate having a predetermined thickness by pressing the end of the shaft portion of the metal wire having a circular cross section. After the portion is formed, the portion is formed by bending the portion into a substantially right angle or substantially U shape, and the tip end portion of the gap insertion portion protrudes from the outer peripheral surface of the shaft portion by a predetermined height. The gap measurement gauge according to claim 1. The gap measuring gauge according to claim 1 or 2, wherein the gap insertion portion is formed at one end of the shaft portion, and a gripping portion is formed at the other end. The gap measuring gauge according to claim 3, wherein the grip portion is formed by bending one end of a metal wire constituting the shaft portion into a ring shape. The gap measuring gauge according to claim 3 or 4, wherein a tag for displaying the thickness of the gap insertion portion is attached to the ring-shaped gripping portion. The gap measuring gauge according to any one of claims 3 to 5, wherein a ring-shaped grip portion of each gauge unit is bundled with a binding ring.

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