JPS5835714Y2 - Driving anchor for branch line - Google Patents

Description

【考案の詳細な説明】 本考案は抵抗板と土層との間に発生する摩擦力を上用耐
力として活用する支線用打込みアンカに関するものであ
る。[Detailed Description of the Invention] The present invention relates to a driving anchor for a branch line that utilizes the frictional force generated between a resistance plate and a soil layer as upper bearing strength.

従来使用されている支線用打込みアンカには種々の形式
があるが、基本的には支線方向に直面して所要の大きさ
の抵抗板を所要の深さに位置せしめ、土層のせん断強度
と抵抗板上方の土の重量により上用耐力を得ようとする
ものである。There are various types of conventionally used driving anchors for branch lines, but basically, a resistance plate of the required size is placed at the required depth facing the direction of the branch line, and the shear strength of the soil layer is increased. The purpose is to obtain the upper yield strength from the weight of the soil above the resistance plate.

この場合に、抵抗板を土層中に支線方向に直面して所要
の深さに位置せしめる方法が難問題であって、これを解
決するために、或はアンカの構造が複雑となってコスト
を上昇せしめ、または打設方法が複雑となって作業性を
損い、或いは所要打込み労力が大きくなって能率の低下
を来たす等の欠点がある。In this case, there is a difficult problem in how to position the resistance plate in the soil layer at the required depth facing the branch line direction, and in order to solve this problem, the structure of the anchor becomes complicated and the cost is reduced. There are drawbacks such as the raising and placing method becomes complicated, impairing workability, or the required driving effort increases, resulting in a decrease in efficiency.

本考案は斯る点を解決するためになされたもので、前記
のように抵抗板と土層との間に発生する摩擦力を上用耐
力として活用するようにした支線用打込みアンカ、すな
わち打設したアンカが抵抗板と土層の間に大きな摩擦力
を生じてアンカの浮上りを阻止し得るアンカを提供しよ
うとするものである。The present invention was made to solve this problem, and is a driving anchor for branch wires that utilizes the frictional force generated between the resistance plate and the soil layer as the upper strength as described above. The present invention aims to provide an anchor that can prevent the anchor from floating by generating a large frictional force between the resistance plate and the soil layer.

以下本考案の詳細を図面に示す一実施例について説明す
る。The details of the present invention will be described below with reference to an embodiment shown in the drawings.

図面においてＡはアンカ本体で第１図及び第２図に示す
ように先端部をとがらせた長方形平板状の抵抗板１の表
面長手方向の中心線上に補強リブ２が全長に互って溶着
され且先端がほぼ２０’後端がほぼ４０°の傾斜に形成
されている。In the drawings, A is the anchor body, and as shown in FIGS. 1 and 2, reinforcing ribs 2 are welded along the entire length of a rectangular flat resistance plate 1 with a pointed tip on the center line in the longitudinal direction of the surface. Moreover, the tip is formed at an angle of approximately 20 degrees, and the rear end is formed at an angle of approximately 40 degrees.

抵抗板１の背面後端には前記補強リブ２と背中合せに同
傾斜の山形リブ３が溶着され両者の頂部に管状の打込拝
受４が溶着されている。A chevron-shaped rib 3 having the same inclination as the reinforcing rib 2 is welded to the rear end of the back surface of the resistance plate 1, and a tubular dowel 4 is welded to the top of both ribs.

前記補強リブ２の後端にはほぼ山形で頂部に透孔５を穿
設した腕金６が底辺においてその一方の斜辺を該補強リ
ブ２の傾斜縁に合せて溶着されている。At the rear end of the reinforcing rib 2, a cross arm 6, which is approximately chevron-shaped and has a through hole 5 at its top, is welded to the bottom side with one oblique side aligned with the inclined edge of the reinforcing rib 2.

そしてこの腕金６の高さは透孔５と抵抗板１との距離ｌ
が抵抗板１の長さの約２０乃至４０％が適当である。The height of this cross arm 6 is the distance l between the through hole 5 and the resistance plate 1.
is approximately 20 to 40% of the length of the resistor plate 1.

腕金６には透孔５において支線棒７がその両端に形式し
たアイ８，９のうちの一方のアイ９でリンク結合されて
いる。A branch rod 7 is linked to the cross arm 6 in the through hole 5 through one eye 9 of eyes 8 and 9 formed at both ends thereof.

Ｂはアンカ本体の後端縁に組合せて使用する補助抵抗板
で、第３図乃至第５図に示すように、それぞれ中央部を
縦方向に半円形に膨出せしめ、該膨出部１０の下端縁中
央に位置規制用の切込１１を形式すると共に上部に横透
孔１２を形式した２枚−組の平板１３ ａ 、１３ ｂ
を上端縁においてスポット絞め等により固着して円筒部
１４を形成し双方の切込み１１をアンカ本体の後端傾斜
縁に係止させて上端への打撃で拡開し得る構造である。Reference numeral B denotes an auxiliary resistance plate used in combination with the rear end edge of the anchor body, and as shown in FIGS. A set of two flat plates 13a, 13b with a notch 11 for position regulation at the center of the lower edge and a transverse hole 12 at the top.
is fixed by spot tightening or the like at the upper end edge to form a cylindrical part 14, both notches 11 are locked to the rear end inclined edge of the anchor body, and the structure is such that it can be expanded by a blow to the upper end.

Ｃは打込み工具で第６図乃至第７図に示すように打込杆
１５と第１打込管、１６と第２打込管１７から成り、打
込杆１５は下端に前記アンカ本体Ａの打込拝受４に嵌合
する小径部１８を有し、該小径部１８によって打込拝受
４の口縁に係合する段部１９を形成している。Reference numeral C denotes a driving tool, which consists of a driving rod 15, a first driving tube, a first driving tube 16, and a second driving tube 17, as shown in FIGS. It has a small diameter part 18 that fits into the driving socket 4, and the small diameter part 18 forms a step part 19 that engages with the edge of the driving socket 4.

そしてこの打込杆１５の径は補助抵抗板Ｂの円筒部１４
に緩く挿入し得る太さである。The diameter of this driving rod 15 is the diameter of the cylindrical portion 14 of the auxiliary resistance plate B.
It is thick enough to be inserted loosely into the body.

また第１打込管１６は打込杆１５に緩く嵌合する内径で
その下端縁が補助抵抗板Ｂの円筒部１４に係止し得る太
さを有している。The first driving tube 16 has an inner diameter that allows it to fit loosely into the driving rod 15, and a thickness that allows its lower edge to be engaged with the cylindrical portion 14 of the auxiliary resistance plate B.

次に第２打込管１７は打込杆１５に緩く嵌合する内径を
有すると共に下端部に第１打込管１６の上端部への嵌合
部２０を有し且該嵌合部により第１打込管１６の上端縁
に係止する段部２１が形成されている。Next, the second driving pipe 17 has an inner diameter that loosely fits into the driving rod 15, and has a fitting part 20 at the lower end thereof to the upper end of the first driving pipe 16. A step portion 21 is formed to be engaged with the upper end edge of the first driving tube 16.

次に上記の構成に成る打込アンカの打設方法について説
明すると、まず第９図に示すように、アンカ本体Ａに補
助抵抗板Ｂをアンカ本体Ａの打込拝受４に円筒部１４を
嵌合して切込１１を補強リブ２と山形リブ３との傾斜辺
上部に嵌合支持させ、次で円筒部１４、打込拝受４に打
込杆１５を挿入してその端部の小径部１８を打込拝受４
に挿入し係止縁１９を打込拝受４の上端縁に係止させ、
続いて打込杆１５に第１打込杆１６を嵌合して組合せ、
アンカ本体Ａの先端を土層２２面に突きたて、打込杆１
５と第１打込管１６の端面を矢標の方向すなわち所望す
る支線と同角度に打印して進入せしめる。Next, the method for driving the driving anchor having the above structure will be explained. First, as shown in FIG. Then, the notch 11 is fitted and supported on the upper part of the inclined side of the reinforcing rib 2 and the chevron rib 3, and then the driving rod 15 is inserted into the cylindrical part 14 and the driving shaft 4, and the small diameter part at the end thereof is inserted. Enter 18 and receive 4
and lock the locking edge 19 to the upper edge of the driving support 4,
Next, the first driving rod 16 is fitted to the driving rod 15 and assembled.
Push the tip of the anchor body A into the soil layer 22, and insert the driving rod 1.
5 and the end face of the first driving tube 16 are struck in the direction of the arrow, that is, at the same angle as the desired branch line, and then entered.

所要の深度に到達したときに、第１０図に示すように第
２打込管１７を第１打込管１６の端部に嵌着し、その端
面に矢標の方向に叩打力を加える。When the required depth is reached, the second driving tube 17 is fitted onto the end of the first driving tube 16 as shown in FIG. 10, and a striking force is applied to the end surface in the direction of the arrow.

しかるときは第１１図に示すように、補助抵抗板Ｂの平
板１３ ａ 、１３ ｂは補強リブ２と山形リブ３との
傾斜辺を案内とし、且それぞれの横透孔１２を基点とし
て拡開し、打込杆１５と第２打込管１７の端面が一致し
たときに所要の開度となって打込終了となる。In such a case, as shown in FIG. 11, the flat plates 13a and 13b of the auxiliary resistance plate B are expanded using the inclined sides of the reinforcing ribs 2 and the chevron ribs 3 as guides, and using the respective horizontal through-holes 12 as base points. However, when the end faces of the driving rod 15 and the second driving tube 17 match, the required opening degree is reached and driving is completed.

打込終了で打込工具Ｃを第２打込管１７、第１打込管１
６、打込杆１５の順序で撤去する。When driving is completed, insert the driving tool C into the second driving pipe 17 and the first driving pipe 1.
6. Remove the driving rods in the order of 15.

打込工具Ｃを撤去し第１２図の状態で支線棒７のアイ８
に支線を連結して矢標の方向に張力を加えると、抵抗板
１と腕金６の透孔５間の距離ｌの存在によって抵抗板１
には大きな回転モーメントが作用して図示のように支線
棒７のアイ９と腕金６の透孔５との係合接点を通って抵
抗板１面に直角交わる点０点を軸として時計方向に回転
しようとして矢標Ｅ及び矢標Ｆ方向に土層２２を圧縮し
て抵抗板１と土層２２の間に大きな摩擦力を生じ、この
摩擦力によってアンカの浮上りに抵抗する上用耐力が発
生し、この際補助抵抗板には土庄Ｒ，Ｒ’が加わるため
更に耐張力性能が向上する。Remove the driving tool C and insert the eye 8 of the branch rod 7 in the state shown in Figure 12.
When connecting a branch line to and applying tension in the direction of the arrow, due to the existence of the distance l between the resistance plate 1 and the through hole 5 of the cross arm 6,
As shown in the figure, a large rotational moment acts on the branch rod 7 through the engagement contact point between the eye 9 of the arm 6 and the through hole 5 of the arm 6, and rotates clockwise around the point 0, which intersects at right angles to the surface of the resistance plate 1, as shown in the figure. When the anchor attempts to rotate, it compresses the soil layer 22 in the directions of arrows E and F, creating a large frictional force between the resistance plate 1 and the soil layer 22, and this frictional force increases the upper strength of the anchor to resist floating. occurs, and at this time, the resistance R and R' are applied to the auxiliary resistance plate, so that the tensile strength performance is further improved.

すなわち土層が硬くない場合には抵抗板１が回転モーメ
ントをうけて矢標Ｅ、Ｆ方向に土層を圧縮して所要の摩
擦力を発生する際の所要の土層の圧縮量が大きくなリア
ンカの浮上りを増加せしめる虞れがあるがこの欠点を土
庄Ｒ，Ｒ’が補う。In other words, if the soil layer is not hard, the required amount of compression of the soil layer will be large when the resistance plate 1 receives the rotational moment and compresses the soil layer in the directions of arrows E and F to generate the required frictional force. Although there is a risk of increasing the floating of Rianka, Tonosho R and R' compensate for this drawback.

尚実施例では腕金を補強リブに連設したが両者一体のも
のでもよいことは勿論である。In the embodiment, the cross arm is connected to the reinforcing rib, but it goes without saying that both may be integrated.

本考案の支線用打込アンカは上記のように構成が極めて
簡単であるので作業性がよく、そのうえ土層に進入する
際に土層を裁断または破壊する量が少いため打込労力を
軽減し得、また支線の方向に打込むために施工に際して
の土地の踏荒しが少くて済み、特に土層が硬くない個所
においては補助抵抗板に加わる土庄によって支線の張力
に対しアンカの浮上りを°防止する効果を奏し、実用的
価値を有するものである。The driving anchor for branch lines of the present invention has an extremely simple structure as described above, so it is easy to work with, and it also reduces the amount of work required to cut or destroy the soil layer when entering the soil layer. In addition, since the anchor is driven in the direction of the branch line, there is less need to trample the land during construction, and especially in areas where the soil layer is not hard, the soil swell applied to the auxiliary resistance plate prevents the anchor from floating against the tension of the branch line. It has a practical value and has the effect of preventing this.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図はアンカ本体の正
面図、第２図はその側面図、第３図は補助抵抗板の正面
図、第４図はその側面図、第５図は平面図、第６図は打
込工具の打込杆の正面図、第７図は打込工具の第１打込
管の一部切截正面図、第８図は打込工具の第２打込管の
一部切截正面図、第９図、第１０図、第１１図、第１２
図は打設状態を順次示す一部切截側面図である。 １・・・・・・抵抗板、２・・・・・・補強リブ、３・
・・・・・山形リブ、４・・・・・・打込拝受、５・・
・・・・透孔、６・・・・・・腕金、７・・・・・・支
線棒、８・・・・・・アイ、９・・・・・・アイ、１０
・・・・・・膨出部、１１・・・・・・切込、１２・・
・・・・横透孔、１３ ａ 、１３ ｂ・・・・・・平
板、１４・・・・・・円筒部、１５・・・・・・打込杆
、１６・・・・・・第１打込管、１７・・・・・・第２
打込管、２２・・・・・・土層。The drawings show an embodiment of the present invention, in which Fig. 1 is a front view of the anchor body, Fig. 2 is a side view thereof, Fig. 3 is a front view of the auxiliary resistance plate, Fig. 4 is a side view thereof, and Fig. 5. is a plan view, FIG. 6 is a front view of the driving rod of the driving tool, FIG. 7 is a partially cutaway front view of the first driving tube of the driving tool, and FIG. 8 is a front view of the second driving rod of the driving tool. Partially cutaway front view of the driving pipe, Fig. 9, Fig. 10, Fig. 11, Fig. 12
The figures are partially cutaway side views sequentially showing the pouring state. 1...Resistance plate, 2...Reinforcement rib, 3.
...Yamagata rib, 4...Ichikomi received, 5...
...Through hole, 6... Arm, 7... Branch rod, 8... Eye, 9... Eye, 10
...Bulge, 11... Cut, 12...
...Horizontal through hole, 13a, 13b...Flat plate, 14...Cylindrical part, 15...Driving rod, 16...No. 1 driving tube, 17...2nd
Driving pipe, 22...soil layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 抵抗板１の表面及び背面に表面には長手方向の中央に補
強リブ２に連続して後端部に山形腕金６を形式してこの
腕金６の頂部に支線棒７をリンク結合し、背面には前記
腕金６と背中合せに同傾斜の山形リブ３を形成し且該山
形リブ３と山形腕金６との頂部に管状の打込拝受４を附
設したアンカ本体と中央部に半円形の膨出部１０を縦方
向に形式した２枚１組の平板を上端縁で連結して前記膨
出部１０で円筒部１４を形式し該円筒部１４をアンカ本
体の打込拝受４に嵌合すると共に下縁を山形リブ３と山
形腕金６の頂部に支持させ上縁への叩打力により前記山
形リブ３と山形腕金６の傾斜縁を案内として拡開するよ
うにした補助抵抗板とから戒る支線用打込みアンカ。On the front and rear surfaces of the resistance plate 1, an angle-shaped cross arm 6 is formed at the rear end, which is continuous with the reinforcing rib 2 at the center in the longitudinal direction, and a branch rod 7 is linked to the top of this arm 6. On the back side, a chevron rib 3 having the same slope as the cross arm 6 is formed on the back side, and a semicircular anchor body is formed in the center. A set of two flat plates each having a vertically formed bulging part 10 are connected at the upper end edge to form a cylindrical part 14 with the bulging part 10, and the cylindrical part 14 is fitted into the driving socket 4 of the anchor body. The auxiliary resistance plate has a lower edge supported on the top of the chevron rib 3 and the chevron arm arm 6, and is expanded by a striking force to the upper edge using the inclined edges of the chevron rib 3 and the chevron arm arm 6 as a guide. Drive-in anchor for branch line.