JP2016017373A

JP2016017373A - Joint member for construction block, and construction block

Info

Publication number: JP2016017373A
Application number: JP2014142412A
Authority: JP
Inventors: 下林　正利; Masatoshi Shimobayashi; 正利下林
Original assignee: KP NET KK
Current assignee: KP NET KK
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2016-02-01
Anticipated expiration: 2034-07-10
Also published as: JP5878955B2

Abstract

PROBLEM TO BE SOLVED: To provide a joint member for a construction block used in joint installation work in which the construction blocks are connected by engaging both ends of a fixing pin to an engaging hole on an edge surface of the adjacent construction block, the fixing pin being inserted into a fitting hole of a joint plate, and the joint member allowing the construction blocks to be connected readily with the fixing pin, even when a position and an orientation of the engaging hole deviated due to a dimensional error in the construction block.SOLUTION: A joint member for a construction block includes a contractible joint plate 20 inserted between edge surfaces of the adjacent construction blocks, and a fixing pin 30 inserted into a fitting hole 21 of the joint plate and having both ends engaged with an engaging hole on an edge surface of the construction block. The fitting hole 21 of the joint plate is formed such that when the fixing pin 30 is fitted, a peripheral surface of the fitting hole 21 comes into contact with an outer peripheral surface of the fixing pin 30 at a plurality of locations 21a in a peripheral direction, and a gap 22b is formed between the contacting locations 21a.SELECTED DRAWING: Figure 4

Description

本発明は、構築用ブロック、特に、道路の車道と歩道の境界又は中央分離帯等に使用する境界ブロックの施工に用いられる目地部材、及びその目地部材を有する構築用ブロックに関する。 The present invention relates to a building block, in particular, a joint member used for construction of a boundary block used for a boundary between a roadway and a sidewalk of a road or a median strip, and a building block having the joint member.

従来、道路の縦断方向に沿って構築用ブロック（境界ブロック）を施工する場合、隣接する構築用ブロック間の一体化を図ると共に、降雨時の背面からの雨水、土粒子の流出を防ぐ目的から、個々の構築用ブロック間に予め１０ｍｍを基準にある程度の間隔（目地部）を設け、その目地部にモルタルを充填するという施工方法を一般的にとっていた。 Conventionally, when constructing construction blocks (boundary blocks) along the longitudinal direction of the road, it is intended to integrate adjacent construction blocks and to prevent the outflow of rainwater and soil particles from the back during rain In general, a construction method in which a certain amount of space (joint portion) is provided in advance between the individual building blocks on the basis of 10 mm, and the joint portion is filled with mortar.

これに対して、特許文献１には、構築用ブロック間の目地部にモルタルを充填する作業を省略することができ、しかも施工を簡単に行える構築用ブロックの目地施工方法が提案されている。この目地施工方法においては、目地プレートの四隅に形成した係止孔に固定ピンをそれぞれ貫通して装着し、各固定ピンの一端部を構築用ブロックの端面に形成した嵌入孔に嵌入係止する。その後、他方の構築用ブロックをクレーン等により移動させ、目地プレートの他方に突出する固定ピンに対し他方の構築用ブロックの嵌入孔を対向させ同構築用ブロックを目地プレートに押圧接触して固定ピンの他端部を他方の構築用ブロックの嵌入孔に嵌入係止する。このようにして隣接する構築用ブロックの端面間に目地プレートが介装された状態で両構築用ブロックが固定ピンにより連結される。なお、特許文献２には、上記固定ピンの改良が提案されている。 On the other hand, Patent Document 1 proposes a joint construction method for building blocks that can omit the work of filling the joints between the construction blocks with mortar and can easily perform construction. In this joint construction method, the fixing pins are respectively inserted through the locking holes formed at the four corners of the joint plate, and one end of each fixing pin is inserted and locked into the insertion hole formed on the end surface of the building block. . After that, the other building block is moved by a crane or the like, the insertion hole of the other building block is made to face the fixing pin protruding on the other side of the joint plate, and the building block is pressed against the joint plate to be fixed pin. The other end of is fitted and locked into the fitting hole of the other building block. In this way, both the building blocks are connected by the fixing pins with the joint plate interposed between the end faces of the adjacent building blocks. In Patent Document 2, an improvement of the fixing pin is proposed.

ところで、構築用ブロックはコンクリート製であり、そのコンクリート製法から僅かながらも誤差が生じる場合がある。これはコンクリート製品製造における寸法誤差によるもので、例えば無筋コンクリートである歩車道境界ブロックの寸法は、ＪＩＳＡ５３７１：２００４の「付属書２（規定）舗装・境界ブロック類」において、付属書２表５「境界ブロックの寸法及び寸法の許容差」で規定されている下記内容からわかるように寸法誤差が生じることを想定したものとなっている。
・上面の幅の許容差：±２ｍｍ
・底面の幅の許容差：±３ｍｍ
・高さの許容差：±３ｍｍ
・丸面取りの許容差：−（該当なし）
・長さの許容差：±３ｍｍ
同じくＪＩＳＡ５３７１：２００４の「推奨仕様２−２境界ブロック」において、推奨仕様２−２表３「寸法及び寸法の許容差」で規定されている下記内容においても寸法誤差が生じることを想定したものとなっている。
・上面の幅の許容差：±２ｍｍ
・底面の幅の許容差：±３ｍｍ
・高さの許容差：±３ｍｍ
・長さの許容差：±３ｍｍ By the way, the building block is made of concrete, and a slight error may occur from the concrete manufacturing method. This is due to dimensional errors in concrete product manufacture. For example, the dimensions of the pedestrian boundary block, which is unreinforced concrete, are listed in Appendix 2 Table 5 in “Appendix 2 (Regulation) Pavement / Boundary Blocks” of JIS A5371: 2004. It is assumed that a dimensional error will occur as can be seen from the following contents prescribed in “Boundary block dimensions and dimensional tolerances”.
-Upper surface width tolerance: ± 2mm
-Bottom width tolerance: ± 3mm
-Height tolerance: ± 3mm
・ Round chamfer tolerance:-(Not applicable)
・ Length tolerance: ± 3mm
Similarly, in the “Recommended Specification 2-2 Boundary Block” of JIS A5371: 2004, it is assumed that a dimensional error will occur even in the following contents specified in the Recommended Specification 2-2 Table 3 “Dimensional and Dimensional tolerances” It has become.
-Upper surface width tolerance: ± 2mm
-Bottom width tolerance: ± 3mm
-Height tolerance: ± 3mm
・ Length tolerance: ± 3mm

このようにコンクリート製品である構築用ブロックに生じがちな寸法誤差によって、上述の嵌入孔の位置がずれたり、その向きが僅かながらずれたりすると、構築用ブロックの端面形状に一致させて作られた寸法誤差がほとんど見られない目地プレートを、構築用ブロックの端面にあてがって位置決めする場合に、構築用ブロックの嵌入孔に対応する目地プレートの係止孔が僅かにずれることがある。このため、目地プレートの係止孔に通して、構築用ブロック間を直線状に連結する固定ピンの挿入が容易でない場合が見受けられる。 In this way, when the position of the above-mentioned insertion hole is shifted due to a dimensional error that tends to occur in the building block that is a concrete product, or the direction is slightly shifted, it is made to match the end face shape of the building block. When positioning a joint plate that hardly shows a dimensional error by being applied to the end face of the building block, the engaging hole of the joint plate corresponding to the fitting hole of the building block may be slightly shifted. For this reason, it can be seen that it is not easy to insert a fixing pin that linearly connects the building blocks through the engaging holes of the joint plate.

特許第３１５３８５９号公報（特開平７−２５２８２９号公報）Japanese Patent No. 3153859 (Japanese Patent Laid-Open No. 7-252829) 特許第３１０６１４９号公報（特開平８−３２８６０９号公報）Japanese Patent No. 3106149 (JP-A-8-328609)

本発明が解決しようとする課題は、目地プレートの係止孔に貫通して装着した固定ピンの両端部を、隣接する構築用ブロックの端面の嵌入孔に嵌入させて構築用ブロック間を連結する目地施工において、構築用ブロックの寸法誤差に起因して嵌入孔の位置や向きがずれたとしても、固定ピンによる構築用ブロック間の連結を容易に行うと共に、目地プレートがブロック端面の所定位置に取り付けられる構築用ブロックの目地部材、及びその目地部材を有する構築用ブロックを提供することにある。 The problem to be solved by the present invention is to connect the building blocks by fitting both end portions of the fixing pins that penetrate through the engaging holes of the joint plate into the fitting holes on the end surfaces of the adjacent building blocks. In joint construction, even if the position and orientation of the insertion holes are shifted due to the dimensional error of the construction block, the construction blocks are easily connected with the fixing pins, and the joint plate is placed at a predetermined position on the block end face. An object of the present invention is to provide a joint member of a building block to be attached and a building block having the joint member.

本発明によれば、以下の（１）から（５）の構築用ブロックの目地部材が提供される。
（１）隣接する構築用ブロックの端面間に介装される可縮性の目地プレートと、前記目地プレートの係止孔に貫通して装着されると共に両端部が前記構築用ブロックの端面の嵌入孔に嵌入される固定ピンとを備えた構築用ブロックの目地部材において、前記目地プレートの係止孔は、前記固定ピンを装着したときに、当該係止孔の周面が前記固定ピンの外周面と周方向において複数箇所で接触すると共に、これらの接触部間に空隙部が形成される形状を有することを特徴とする構築用ブロックの目地部材。
（２）前記固定ピンの断面外郭形状は実質的に円であり、前記目地プレートの係止孔は回転対称の形状を有する（１）に記載の構築用ブロックの目地部材。
（３）前記空隙部が、前記係止孔の中心側を底辺としたときに正三角形状又は二等辺三角形状の形状を有する（１）又は（２）に記載の構築用ブロックの目地部材。
（４）前記固定ピンの外周面に、当該固定ピンの長手方向に伸びる突条が設けられており、前記固定ピンを前記係止孔に装着したときに、前記突条の一部が前記空隙部に嵌合可能である（１）から（３）のいずれかに記載の構築用ブロックの目地部材。
（５）前記空隙部の数が前記突条の数以上である（４）に記載の構築用ブロックの目地部材。
（６）（１）から（５）のいずれかに記載の目地部材を有した構築用ブロック。 According to this invention, the joint member of the building block of the following (1) to (5) is provided.
(1) A contractible joint plate interposed between the end faces of adjacent building blocks, and fitted through the engaging holes of the joint plate, and both ends are fitted into the end faces of the building block. In the joint member of the building block provided with the fixing pin fitted into the hole, the engaging hole of the joint plate has an outer peripheral surface of the fixing pin when the fixing pin is mounted. And a joint member of the building block characterized by having a shape in which a gap is formed between the contact portions.
(2) The joint member of the building block according to (1), wherein a cross-sectional outline shape of the fixing pin is substantially a circle, and a locking hole of the joint plate has a rotationally symmetric shape.
(3) The joint member of the building block according to (1) or (2), wherein the gap portion has a shape of an equilateral triangle or an isosceles triangle when the center side of the locking hole is a bottom side.
(4) A protrusion extending in the longitudinal direction of the fixed pin is provided on the outer peripheral surface of the fixed pin, and when the fixed pin is attached to the locking hole, a part of the protrusion is the gap. The joint member of the building block according to any one of (1) to (3), which can be fitted to a portion.
(5) The joint member of the building block according to (4), wherein the number of the gaps is equal to or greater than the number of the protrusions.
(6) A building block having the joint member according to any one of (1) to (5).

本発明の構築用ブロックの目地部材においては、目地プレートの係止孔に固定ピンを装着したとき、当該係止孔の周面が固定ピンの外周面と周方向において複数箇所で接触することで固定ピンが支持されると共に、これらの接触部間に空隙部が形成される。この空隙部の存在により、係止孔内における固定ピンの位置や向きの調整の自由度が増す。したがって、構築用ブロックの寸法誤差に起因して嵌入孔の位置や向きがずれたとしても、固定ピンによる構築用ブロック間の連結を容易に行うことができる。また、車両タイヤや道路清掃車に設置された掃除ブラシなどが構築用ブロック目地部に衝突したり、目地部に接し、擦ることで目地プレートが損傷することを防ぐため目地プレートの実用化はタイヤ、ブラシなどが目地プレートに直に当たらないように構築用ブロック端面の外周から内側へ１ｍｍ小さくした形状となっているが、この空隙部の存在により、係止孔内における固定ピンの位置や向きの調整の自由度が増すことで、その創意工夫のうえ実用化された目地プレート形状を構築用ブロック端面の外周から内側へ１ｍｍ小さくした所定位置に取り付けることもできる。 In the joint member of the building block of the present invention, when the fixing pin is attached to the locking hole of the joint plate, the peripheral surface of the locking hole comes into contact with the outer peripheral surface of the fixing pin at a plurality of locations in the circumferential direction. The fixing pin is supported, and a gap is formed between these contact portions. Due to the presence of this gap, the degree of freedom in adjusting the position and orientation of the fixing pin in the locking hole is increased. Therefore, even if the positions and orientations of the fitting holes are shifted due to the dimensional error of the building blocks, the building blocks can be easily connected by the fixing pins. In addition, the joint plate has been put to practical use in order to prevent damage to the joint plate due to collision of the vehicle tires or cleaning brushes installed in the road sweeper with the building block joints, or contact with the joints and rubbing. The shape is reduced by 1 mm from the outer periphery of the building block end face to the inside so that the brush or the like does not directly hit the joint plate. Due to the presence of this gap, the position and orientation of the fixing pin in the locking hole By increasing the degree of freedom of adjustment, it is possible to attach the joint plate shape, which has been put to practical use after its ingenuity, to a predetermined position that is 1 mm smaller from the outer periphery of the building block end face to the inside.

本発明の一実施例による目地部材の構成要素及びその使用状態を示す斜視図である。It is a perspective view which shows the component of the joint member by one Example of this invention, and its use condition. 固定ピンの詳細構成を示す斜視図である。It is a perspective view which shows the detailed structure of a fixing pin. 固定ピンを係止孔に装着した使用状態を示す要部の断面図である。It is sectional drawing of the principal part which shows the use condition which attached the fixing pin to the latching hole. 図３のＡ−Ａ端面図である。FIG. 4 is an AA end view of FIG. 3. 目地プレートの係止孔の形状の変形例を示す断面図である。It is sectional drawing which shows the modification of the shape of the latching hole of a joint plate.

以下、図面に示す実施例に基づき本発明の実施の形態を説明する。本実施例は、本発明の目地部材を車道と歩道の境界構築用ブロック（歩車道境界ブロック）間に適用したものである。 Embodiments of the present invention will be described below based on examples shown in the drawings. In this embodiment, the joint member of the present invention is applied between a roadway and sidewalk boundary construction block (walkway boundary block).

図１は、本実施例による目地部材の構成要素及びその使用状態を示す斜視図である。具体的には、図１の上段に目地部材の構成要素、下段に使用状態を示すが、下段の使用状態においては目地部材の構成要素は一部省略して示している。 FIG. 1 is a perspective view showing components of a joint member according to the present embodiment and a use state thereof. Specifically, the upper part of FIG. 1 shows the components of the joint member, and the lower part shows the usage state, but in the lower part of the use state, some of the components of the joint member are omitted.

図１において符号１０Ａ，１０Ｂは、コンクリート製の歩車道境界ブロック（以下、単に「境界ブロック」という。）である。境界ブロック１０Ａ，１０Ｂの両端面の四隅近傍にはテーパ状の嵌入孔１１が内端ほど小径となるよう形成されている。直列に接続される境界ブロック１０Ａ，１０Ｂの端面間には目地プレート２０が介装される。 In FIG. 1, reference numerals 10 </ b> A and 10 </ b> B denote concrete walkway boundary blocks (hereinafter simply referred to as “boundary blocks”). In the vicinity of the four corners of both end faces of the boundary blocks 10A and 10B, tapered insertion holes 11 are formed so as to have a smaller diameter toward the inner end. A joint plate 20 is interposed between the end faces of the boundary blocks 10A and 10B connected in series.

目地プレート２０は、境界ブロック１０Ａ，１０Ｂの端面形状と一致する形状を有しているが、実用化された目地プレートでは境界ブロック端面の外周から内側へ１ｍｍ小さい形状となっている。これは、目地プレートが境界ブロックに取り付けられ、当該道路工事が竣工し、道路が供与され、車両通行が始まった以後において、車両タイヤ部がブロック目地部に衝突したり、道路清掃車の車両両側面に設置された掃除ブラシのうち境界ブロック側のブラシがブロック目地部に接し、擦ることで目地プレートが損傷することを防ぐために、ブラシが直に目地プレートに当たらないように、１ｍｍ内側へ小さくしたもので、創意工夫の実用化である。目地プレート２０の材質はポリエチレン樹脂発泡体等の耐光性に優れ、可縮性のある材料で形成され、緩衝材としての機能も持たせることもできる。 The joint plate 20 has a shape that matches the end face shape of the boundary blocks 10A and 10B, but the joint plate that has been put into practical use has a shape that is 1 mm smaller from the outer periphery to the inside of the boundary block end face. This is because after the joint plate is attached to the boundary block, the road construction is completed, the road is provided, and the vehicle starts to pass, the vehicle tire part collides with the block joint part or both sides of the road cleaning vehicle In order to prevent the brush on the boundary block side of the cleaning brush installed on the surface from coming into contact with the block joint and rubbing the joint plate by rubbing, the brush should be 1mm inward so that the brush does not directly hit the joint plate. This is the practical application of ingenuity. The material of the joint plate 20 is formed of a material having excellent light resistance, such as polyethylene resin foam, and being contractible, and can also have a function as a buffer material.

目地プレート２０の四隅には境界ブロック１０Ａ，１０Ｂの端面の嵌入孔１１と同じ位置に四つの係止孔２１が形成されている。これらの係止孔２１にはそれぞれ固定ピン３０が貫通して装着される。各固定ピン３０の両端部は境界ブロック１０Ａ，１０Ｂの嵌入孔１１に嵌入係止され、目地プレート２０は境界ブロック１０Ａ，１０Ｂの対向する端面に挟着される。固定ピン３０は境界ブロック１０Ａ，１０Ｂの端面どうしの位置合わせを正確に行う機能と、境界ブロック１０Ａ，１０Ｂの側方への相対移動を阻止する機能とを有している。 At the four corners of the joint plate 20, four locking holes 21 are formed at the same positions as the insertion holes 11 on the end faces of the boundary blocks 10A and 10B. A fixing pin 30 is inserted through each of the locking holes 21. Both ends of each fixing pin 30 are fitted and locked in the fitting holes 11 of the boundary blocks 10A and 10B, and the joint plate 20 is sandwiched between the opposing end surfaces of the boundary blocks 10A and 10B. The fixing pin 30 has a function of accurately aligning the end faces of the boundary blocks 10A and 10B and a function of preventing relative movement of the boundary blocks 10A and 10B to the sides.

次に、固定ピン３０、及びこれが貫通して装着される係止孔２１の詳細構成を説明する。図２は固定ピン３０の詳細構成を示す斜視図、図３は固定ピン３０を係止孔２１に装着し、ブロック端面まで嵌入させた使用状態を示す要部の断面図、図４は図３のＡ−Ａ端面図である。 Next, the detailed configuration of the fixing pin 30 and the locking hole 21 through which the fixing pin 30 is mounted will be described. 2 is a perspective view showing a detailed configuration of the fixing pin 30, FIG. 3 is a cross-sectional view of the main part showing a use state in which the fixing pin 30 is mounted in the locking hole 21 and inserted to the block end surface, and FIG. It is an AA end elevation of FIG.

固定ピン３０は、横円柱形状の中央部３１の両端にテーパ部３２が一体的に形成されてなる。両テーパ部３２は先端ほど小径となるように形成されている。両テーパ部３２の外周面には、固定ピンの長手方向に伸びる突条３３が一体的に設けられている。本実施例では、固定ピン３０の周方向に沿って等間隔でそれぞれ６本の突条３３が設けられている。また、各突条３３の中央部３１側の端部は傾斜部３３ａとされ、固定ピン３０を係止孔２１に挿入する際、突条３３が邪魔にならないようになっている。 The fixed pin 30 is formed by integrally forming tapered portions 32 at both ends of a horizontal cylindrical center portion 31. Both tapered portions 32 are formed so as to have a smaller diameter toward the tip. On the outer peripheral surface of both the taper portions 32, a protrusion 33 extending in the longitudinal direction of the fixing pin is integrally provided. In this embodiment, six ridges 33 are provided at equal intervals along the circumferential direction of the fixing pin 30. Moreover, the edge part by the side of the center part 31 of each protrusion 33 is made into the inclined part 33a, and when inserting the fixing pin 30 in the locking hole 21, the protrusion 33 does not become obstructive.

このように固定ピン３０の外周面には突条３３が設けられているが、基本は横円柱形状の中央部３１と両テーパ部３２とからなり、固定ピン３０の断面外郭形状は実質的に円である。なお、両テーパ部３２の先端面にはテーパ孔３４が形成され、固定ピン３０の材料節約とコスト低減を図るようにしている。 As described above, the protrusion 33 is provided on the outer peripheral surface of the fixing pin 30, but basically includes a horizontal cylindrical center portion 31 and both tapered portions 32, and the cross-sectional outline of the fixing pin 30 is substantially the same. It is a circle. A tapered hole 34 is formed in the tip surface of both the tapered portions 32 so as to save the material and cost of the fixing pin 30.

係止孔２１は、図４に表れているように、固定ピン３０を装着したときに、係止孔２１の周面が固定ピン３０の外周面と周方向において複数箇所で接触する（この接触する箇所を「接触部」という。）と共に、これらの接触部２１ａ間に空隙部２１ｂが形成される形状を有する。本実施例において空隙部２１ｂは、係止孔２１の中心側を底辺としたときに高さ３ｍｍの正三角形の形状をなし、係止孔２１の周方向に沿って等間隔（３０°間隔）で合計１２個形成されるようになっている。言い換えれば、空隙部２１ｂは、接触部２１ａを円周に含む丸孔の周面を円周方向に沿って等間隔（３０°間隔）で正三角形状に切り欠くことで形成される。 As shown in FIG. 4, when the fixing pin 30 is attached to the locking hole 21, the peripheral surface of the locking hole 21 contacts the outer peripheral surface of the fixing pin 30 at a plurality of locations in the circumferential direction (this contact). And a space 21b is formed between the contact portions 21a. In this embodiment, the gap portion 21b has a regular triangular shape with a height of 3 mm when the center side of the locking hole 21 is the base, and is equally spaced along the circumferential direction of the locking hole 21 (30 ° interval). In total, 12 pieces are formed. In other words, the gap portion 21b is formed by cutting out the circumferential surface of the round hole including the contact portion 21a in the circumference at regular intervals (30 ° intervals) along the circumferential direction.

次に、以上のように構成した目地プレート２０及び固定ピン３０を用いて、境界ブロック１０Ａ，１０Ｂを所定の位置に施工する作業を説明する。 Next, an operation of constructing the boundary blocks 10A and 10B at predetermined positions using the joint plate 20 and the fixing pin 30 configured as described above will be described.

施工にあたっては、床堀後、基礎材等を施し、境界ブロック１０Ａを設置する。そして、この境界ブロック１０Ａの端面に形成した嵌入孔１１に対し、係止孔２１をあてがって、固定ピン３０の一方のテーパ部３２を係止孔２１に装着しつつ境界ブロック１０Ａの端面に形成した嵌入孔１１に嵌入係止させる。各固定ピン３０のテーパ部３２外周に設けた突条３３が境界ブロック１０Ａの嵌入孔１１のテーパ内周面１１ａに挿入される際、突条３３の先端縁が嵌入孔１１のテーパ内周面１１ａに弾性変形しつつ押圧されるので、その突条３３の弾発力により固定ピン３０がテーパ内周面１１ａに押圧接触される（図３参照）。このため境界ブロック１０Ａの嵌入孔１１内の固定ピン３０は、目地プレート２０が振動したり、境界ブロック１０Ａ，１０Ｂが振動したりして衝撃が加わっても嵌入孔１１から抜け出ることはなく、境界ブロック１０Ａの端面から目地プレート２０が外れることはない。 In construction, after the floor moat, foundation materials are applied and the boundary block 10A is installed. Then, a locking hole 21 is assigned to the insertion hole 11 formed on the end face of the boundary block 10A, and one taper portion 32 of the fixing pin 30 is formed on the end face of the boundary block 10A while being attached to the locking hole 21. The fitting hole 11 is fitted and locked. When the protrusion 33 provided on the outer periphery of the taper portion 32 of each fixing pin 30 is inserted into the taper inner peripheral surface 11a of the insertion hole 11 of the boundary block 10A, the tip edge of the protrusion 33 is the taper inner peripheral surface of the insertion hole 11. Since the elastic pin 11 is pressed while being elastically deformed, the fixing pin 30 is pressed and brought into contact with the tapered inner peripheral surface 11a by the elastic force of the protrusion 33 (see FIG. 3). Therefore, the fixing pin 30 in the insertion hole 11 of the boundary block 10A does not come out of the insertion hole 11 even if an impact is applied due to vibration of the joint plate 20 or vibration of the boundary blocks 10A and 10B. The joint plate 20 does not come off from the end face of the block 10A.

次いで、境界ブロック１０Ｂをその端面が目地プレート２０の他面に隣接するように設置する。そして、目地プレート２０の他面から突出する固定ピン３０のテーパ部３２に対し、境界ブロック１０Ｂの嵌入孔１１を対向させ、この境界ブロック１０Ｂを目地プレート２０に押圧接触して固定ピン３０のテーパ部３２を同境界ブロック１０Ｂの嵌入孔１１に嵌入係止する。このようにして隣接する境界ブロック１０Ａ，１０Ｂの端面間に目地プレート２０が介装された状態で両境界ブロック１０Ａ，１０Ｂが固定ピン３０により連結される。 Next, the boundary block 10 </ b> B is installed so that its end surface is adjacent to the other surface of the joint plate 20. Then, the insertion hole 11 of the boundary block 10B is opposed to the taper portion 32 of the fixing pin 30 protruding from the other surface of the joint plate 20, and the boundary block 10B is pressed and contacted with the joint plate 20 to taper the fixing pin 30. The portion 32 is fitted and locked in the fitting hole 11 of the boundary block 10B. Thus, both the boundary blocks 10A and 10B are connected by the fixing pin 30 in a state where the joint plate 20 is interposed between the end faces of the adjacent boundary blocks 10A and 10B.

以上の施工においては、図３及び図４で説明したように、目地プレート２０の係止孔２１に固定ピン３０を装着したときに、係止孔２１の周面の接触部２１ａが固定ピン３０の外周面と周方向に間隔をおいて接触することで固定ピン３０が支持されると共に、これらの接触部２１ａ間に空隙部２１ｂが形成される。この空隙部２１ｂの存在により、係止孔２１内における固定ピン３０の位置や向きの調整の自由度が増す。したがって、境界ブロック１０Ａ，１０Ｂの寸法誤差に起因して嵌入孔１１の位置や向きがずれたとしても、固定ピン３０による境界ブロック１０Ａ，１０Ｂ間の連結を容易に行うことができる。また、境界ブロック１０Ａ，１０Ｂの寸法誤差によって、創意工夫のうえ実用化された目地プレートのブロック端面外周から内側へ僅か１ｍｍ小さくした形状が所定位置からずれる懸念があるが、空隙部２１ｂの存在により、係止孔２１内における固定ピン３０の位置や向きの調整の自由度が増すためにその調整自由度に追随して僅か１ｍｍのずれは解消される。なお、本実施例における空隙部２１ｂの高さ（３ｍｍ）は、上述したＪＩＳＡ５３７１：２００４の「境界ブロックの寸法及び寸法の許容差」、「寸法及び寸法の許容差」に合せて、普遍性を追求したものである。 In the above construction, as described in FIGS. 3 and 4, when the fixing pin 30 is attached to the locking hole 21 of the joint plate 20, the contact portion 21 a on the peripheral surface of the locking hole 21 is fixed to the fixing pin 30. The fixing pin 30 is supported by contacting the outer peripheral surface of the outer peripheral surface with an interval in the circumferential direction, and a gap portion 21b is formed between the contact portions 21a. The presence of the gap 21b increases the degree of freedom in adjusting the position and orientation of the fixing pin 30 in the locking hole 21. Therefore, even if the position and orientation of the insertion hole 11 are shifted due to the dimensional error of the boundary blocks 10A and 10B, the connection between the boundary blocks 10A and 10B by the fixing pin 30 can be easily performed. In addition, due to dimensional errors in the boundary blocks 10A and 10B, there is a concern that the shape of the joint plate that has been put into practical use after practical use is shifted from the outer periphery of the block end surface to the inside by only 1 mm. Since the degree of freedom in adjusting the position and orientation of the fixing pin 30 in the locking hole 21 is increased, the deviation of only 1 mm is eliminated following the degree of freedom in adjustment. In addition, the height (3 mm) of the gap 21b in the present embodiment is universal in accordance with the above-described “boundary block dimension and dimension tolerance” and “dimension and dimension tolerance” of JISA5371: 2004. It has been pursued.

また、本実施例では、図４に示すように空隙部２１ｂには、固定ピン３０の外周に設けた突条３３の一部が嵌合可能である。このように突条３３が空隙部２１ｂに嵌合可能であることで、固定ピン３０を係止孔２１に挿入する際、突条３３が邪魔にならないでスムーズに挿入される。また、固定ピン３０を係止孔２１に挿入した後は、突条３３が空隙部１２ｂに嵌合することで、固定ピン３０が確実に位置決め固定される。 In the present embodiment, as shown in FIG. 4, a part of the protrusion 33 provided on the outer periphery of the fixing pin 30 can be fitted into the gap portion 21 b. Since the protrusion 33 can be fitted into the gap 21b as described above, the protrusion 33 can be smoothly inserted without interfering when the fixing pin 30 is inserted into the locking hole 21. In addition, after the fixing pin 30 is inserted into the locking hole 21, the fixing pin 30 is reliably positioned and fixed by fitting the protrusion 33 into the gap 12b.

なお、本実施例では、空隙部２１ｂの数が１２で、突条３３の数が６であるので、図４に示すように、突条３３が、空隙部２１ｂに対して一つおきに嵌合可能である。このように、空隙部２１ｂの数が突条３３の数以上であると、突条３３が空隙部２１ｂに嵌合しやすくなる。 In this embodiment, since the number of the gaps 21b is 12 and the number of the protrusions 33 is 6, as shown in FIG. 4, every other protrusion 33 is fitted into the gap 21b. Is possible. Thus, when the number of the gaps 21b is equal to or greater than the number of the protrusions 33, the protrusions 33 are easily fitted into the gaps 21b.

以下、目地プレート２０の係止孔２１の形状の変形例を示す。 Hereinafter, modifications of the shape of the locking hole 21 of the joint plate 20 will be described.

図５（ａ）は、係止孔２１の形状を、固定ピン３０の外周円に外接する正六角形とした例である。この場合、接触部２１ａは６箇所となり、これらの接触部２１ａ間に二等辺三角形状の空隙部２１ｂが形成される。係止孔２１の形状はこの正六角形に限らず、他の正多角形（固定ピン３０の外周円に外接する正多角形）とすることもできる。これらの係止孔２１は図４の例も含めて、いずれも回転対称の形状を有する。係止孔２１の形状が回転対称であると、係止孔２１内における固定ピン３０の支持固定が均一になり、しかも空隙部２１ｂも均等に配置されるので、係止孔２１内における固定ピン３０の位置や向きの調整の自由度がより一層増す。ただし、本発明では、図５（ｂ）に示すように、係止孔２１は回転対称でない形状とすることもできる。 FIG. 5A shows an example in which the shape of the locking hole 21 is a regular hexagon that circumscribes the outer peripheral circle of the fixing pin 30. In this case, there are six contact portions 21a, and an isosceles triangular gap portion 21b is formed between the contact portions 21a. The shape of the locking hole 21 is not limited to this regular hexagon, but may be another regular polygon (a regular polygon circumscribing the outer circumference of the fixing pin 30). These locking holes 21, including the example of FIG. 4, all have a rotationally symmetric shape. When the shape of the locking hole 21 is rotationally symmetric, the fixing and fixing of the fixing pin 30 in the locking hole 21 becomes uniform, and the gap portion 21b is also uniformly arranged. The degree of freedom in adjusting the position and orientation of 30 is further increased. However, in this invention, as shown in FIG.5 (b), the locking hole 21 can also be made into the shape which is not rotationally symmetric.

１０Ａ，１０Ｂ構築用ブロック（境界ブロック）
１１嵌入孔
１１ａテーパ内周面
２０目地プレート
２１係止孔
２１ａ接触部
２１ｂ空隙部
３０固定ピン
３１中央部
３２テーパ部
３３突条
３３ａ傾斜部
３４テーパ孔 10A, 10B Building block (boundary block)
DESCRIPTION OF SYMBOLS 11 Insertion hole 11a Tapered inner peripheral surface 20 Joint plate 21 Locking hole 21a Contact part 21b Cavity part 30 Fixing pin 31 Center part 32 Tapered part 33 Projection 33a Inclined part 34 Tapered hole

本発明によれば、以下の（１）から（５）の構築用ブロックの目地部材及び構築用ブロックが提供される。
（１）隣接する構築用ブロックの端面間に介装される可縮性の目地プレートと、前記目地プレートの係止孔に貫通して装着されると共に両端部が前記構築用ブロックの端面の嵌入孔に嵌入される固定ピンとを備えた構築用ブロックの目地部材において、前記目地プレートの係止孔は、前記固定ピンを装着したときに、当該係止孔の周面が前記固定ピンの外周面と周方向において複数箇所で接触すると共に、これらの接触部間に空隙部が形成される形状を有し、前記空隙部が、前記係止孔の中心側を底辺としたときに正三角形状又は二等辺三角形状の形状を有することを特徴とする構築用ブロックの目地部材。
（２）隣接する構築用ブロックの端面間に介装される可縮性の目地プレートと、前記目地プレートの係止孔に貫通して装着されると共に両端部が前記構築用ブロックの端面の嵌入孔に嵌入される固定ピンとを備えた構築用ブロックの目地部材において、前記目地プレートの係止孔は、前記固定ピンを装着したときに、当該係止孔の周面が前記固定ピンの外周面と周方向において複数箇所で接触すると共に、これらの接触部間に空隙部が形成される形状を有し、前記空隙部が、前記係止孔の中心側を底辺としたときに正三角形状又は二等辺三角形状の形状を有することを特徴とする構築用ブロックの目地部材。
（３）隣接する構築用ブロックの端面間に介装される可縮性の目地プレートと、前記目地プレートの係止孔に貫通して装着されると共に両端部が前記構築用ブロックの端面の嵌入孔に嵌入される固定ピンとを備えた構築用ブロックの目地部材において、前記目地プレートの係止孔は、前記固定ピンを装着したときに、当該係止孔の周面が前記固定ピンの外周面と周方向において複数箇所で接触すると共に、これらの接触部間に空隙部が形成される形状を有し、前記固定ピンの外周面に、当該固定ピンの長手方向に伸びる突条が設けられており、前記固定ピンを前記係止孔に装着したときに、前記突条の一部が前記空隙部に嵌合可能であることを特徴とする構築用ブロックの目地部材。
（４）前記空隙部の数が前記突条の数以上である（３）に記載の構築用ブロックの目地部材。
（５）（１）から（４）のいずれかに記載の目地部材を有した構築用ブロック。 According to the present invention, the following (1) to (5) building block joint members and building blocks are provided.
(1) A contractible joint plate interposed between the end faces of adjacent building blocks, and fitted through the engaging holes of the joint plate, and both ends are fitted into the end faces of the building block. In the joint member of the building block provided with the fixing pin fitted into the hole, the engaging hole of the joint plate has an outer peripheral surface of the fixing pin when the fixing pin is mounted. when with contact at a plurality of locations in the circumferential direction, it has a shape that the gap portion between these contact portions are formed, the gap portion equilateral triangle or upon the bottom of the center side of the locking hole A joint member of a building block having an isosceles triangular shape .
(2) A contractible joint plate interposed between the end faces of adjacent building blocks, and fitted through the engaging holes of the joint plate, and both ends are fitted into the end faces of the building blocks. In the joint member of the building block provided with the fixing pin fitted into the hole, the engaging hole of the joint plate has an outer peripheral surface of the fixing pin when the fixing pin is mounted. And in a circumferential direction, a space is formed between these contact portions, and the space is an equilateral triangle when the center side of the locking hole is the base. A joint member of a building block having an isosceles triangular shape.
(3) A retractable joint plate interposed between end faces of adjacent building blocks, and fitted through the engaging holes of the joint plate, and both ends are fitted into the end faces of the building block. In the joint member of the building block provided with the fixing pin fitted into the hole, the engaging hole of the joint plate has an outer peripheral surface of the fixing pin when the fixing pin is mounted. And in a circumferential direction, a gap is formed between the contact portions , and a protrusion that extends in the longitudinal direction of the fixed pin is provided on the outer peripheral surface of the fixed pin. And a joint member of the building block, wherein a part of the protrusion can be fitted into the gap when the fixing pin is mounted in the locking hole.
(4) The joint member of the building block according to (3) , wherein the number of the gaps is equal to or greater than the number of the protrusions.
(5) A building block having the joint member according to any one of (1) to (4) .

Claims

A retractable joint plate interposed between the end faces of adjacent building blocks, and fitted through the engaging holes of the joint plate, and both ends thereof are fitted into the fitting holes of the end faces of the building blocks. In the joint member of the building block with the fixing pin to be
When the fixing pin is mounted, the locking hole of the joint plate is in contact with the outer peripheral surface of the fixing pin at a plurality of locations in the circumferential direction, and there is a gap between the contact portions. A joint member for a building block having a shape in which a portion is formed.

The joint member of the building block according to claim 1, wherein a cross-sectional outline shape of the fixing pin is substantially a circle, and a locking hole of the joint plate has a rotationally symmetric shape.

The joint member of the building block according to claim 1 or 2, wherein the gap portion has a shape of an equilateral triangle or an isosceles triangle when the center side of the locking hole is a bottom side.

A protrusion extending in the longitudinal direction of the fixing pin is provided on the outer peripheral surface of the fixing pin, and when the fixing pin is attached to the locking hole, a part of the protrusion is fitted into the gap. The joint member of the building block according to any one of claims 1 to 3, wherein the joint member can be combined.

The joint member of the building block according to claim 4, wherein the number of the gap portions is equal to or greater than the number of the protrusions.

A building block having the joint member according to claim 1.