JPS5910194Y2 - Earth retaining frame for pillar erection - Google Patents

Description

【考案の詳細な説明】 本考案は建柱用土留枠、特に電柱・共架柱その他の柱を
地面に建柱する場合に適用して有効な建柱用土留粋に関
する。[Detailed Description of the Invention] The present invention relates to an earth retaining frame for erecting poles, and particularly to an earth retaining frame for erecting poles that is effective when applied to erecting utility poles, common poles, and other pillars on the ground.

通常、この柱の建柱は砂地では掘削ドリルによる機械掘
りにより、転石のある土地等で上記掘削ドリルを使用で
きないときは手掘りにより、地面に所定深さの穴をあけ
て該穴に柱の基部を挿入して穴の埋戻しを行なっている
。Normally, these pillars are erected by machine digging using an excavation drill in sandy areas, or by hand when the above-mentioned excavation drill cannot be used in areas with boulders, etc., by drilling a hole to a specified depth in the ground and placing the pillar in the hole. The base is inserted and the hole is backfilled.

ところが、上記の穴あけ時、地表面に近い穴壁は崩れや
すく、機械掘りおよび手掘りのいずれの掘削方法によっ
ても必要以上の穴径となってしまう。However, during the above-mentioned drilling, the hole walls near the ground surface tend to collapse, and both mechanical and manual drilling methods result in a hole diameter that is larger than necessary.

このため、所定深さの穴を掘削するために排土量が多大
となって作業能率を低下させ、また、手掘りの場合は穴
内の作業員に土砂崩壊による危険があった。For this reason, a large amount of earth is removed in order to excavate a hole of a predetermined depth, reducing work efficiency, and in the case of manual digging, there is a risk of landslides for workers inside the hole.

本考案は上記に鑑み提案されたもので、穴あけ時におけ
る土砂崩壊を防止し安全且つ能率よく建柱作業を行なう
ことができる建柱用土留枠を得ることを目白勺とする。The present invention has been proposed in view of the above, and its purpose is to obtain a retaining frame for pillar erection that can prevent earth and sand from collapsing during drilling and allow pillar erection work to be carried out safely and efficiently.

即ち、本考案は建柱すべき柱を通すことができ且つ少な
くとも２個以上に分割できるかまたは３数字状に開くこ
とができる筒体と、この筒体を地面にあけた穴に挿入し
たとき地表面に当接して該筒体の穴内落下を防止するた
めに該筒体の一端部外面に突設した落下防止体とからな
る建柱用土留枠を要旨とする。That is, the present invention provides a cylindrical body through which the pillar to be erected can pass, and which can be divided into at least two parts or opened into three figures, and when this cylindrical body is inserted into a hole drilled in the ground. The gist of the present invention is to provide an earth retaining frame for pillar erection, which is comprised of a fall prevention body protruding from the outer surface of one end of the cylindrical body in order to prevent the cylindrical body from falling into a hole by coming into contact with the ground surface.

以下、本考案の実施例を図面について説明する。Embodiments of the present invention will be described below with reference to the drawings.

第１図は本考案土留粋の平面図、第２図は第１図ＩＩ
− ＩＩ線に沿う縦断正面図である。Figure 1 is a plan view of the proposed Tsuchidome, Figure 2 is Figure 1 II.
- It is a longitudinal sectional front view along line II.

第１，２図において、筒体１は例えば厚さ２ｍｍの鋼製
鉄板２に直径１０ｍｍの丸棒３を補強骨材として溶接し
た半円体の一対１ａ，ｌｂを、その一方の合せ部を開閉
自在に蝶番結合４し他方の合せ部を掛外し式止め金具５
で涸定するようになっている。In Figures 1 and 2, the cylindrical body 1 is made up of a pair of semicircular bodies 1a and 1b made by welding a round bar 3 with a diameter of 10 mm as a reinforcing aggregate to a steel plate 2 with a thickness of 2 mm, for example, and a mating part of one of the semicircular bodies 1a and lb. A hinge joint 4 that can be opened and closed freely, and the other mating part is a removable stopper 5
It is now stagnant.

この筒体１の一端部外周には落下防止体として例えば厚
さ２ｍｍの鋼製円板６が鍔状に溶接されている。A steel disk 6 having a thickness of 2 mm, for example, is welded to the outer periphery of one end of the cylinder 1 in the form of a flange as a fall prevention member.

この円板下面と筒体間には該円板の変形防止のために略
等間隔に厚さ３ｍｍの補強板７、〜７ｏが溶接されてい
る。Reinforcement plates 7, - 7o with a thickness of 3 mm are welded at approximately equal intervals between the lower surface of the disk and the cylindrical body to prevent deformation of the disk.

そして、上記円板６の内周面に略等間隔に形或された凹
部空間８、〜８ｏには、例えば直径１３ｍｍの九棒を折
曲げたＵ字部材９の両脚を通して筒体１に取付け、この
Ｕ字部材９にクレーン等（不図示）の引抜きロープ先端
に設けたフックを引掛けるようになっている。The legs of a U-shaped member 9 formed by bending nine rods each having a diameter of 13 mm, for example, are inserted into the concave spaces 8, -8o formed on the inner circumferential surface of the disc 6 at approximately equal intervals, and attached to the cylinder body 1. A hook provided at the tip of a pulling rope of a crane or the like (not shown) is hooked onto this U-shaped member 9.

また、上記円板６の一部即ち蝶番軸の延長線上に当る部
分は、筒体１を蝶番軸４ａを中心に第２図鎖線示のよう
に３数字状に開くことができるようにＶ字状に切欠き１
０されている。Further, a part of the disc 6, that is, a part corresponding to the extension line of the hinge shaft, is arranged in a V-shape so that the cylinder 1 can be opened in a three-figure shape around the hinge shaft 4a as shown by the chain line in FIG. Notch 1 in the shape
It is set to 0.

以下、上記の構或からなる本考案土留枠を使用しての建
柱工程を第３図を参照しながら説明する。Hereinafter, the pillar erection process using the earth retaining frame of the present invention having the above structure will be explained with reference to FIG.

先ず、地面１１にユンボ等により約直径１ｍ、深さ１．
５ｍ程度の穴１２を掘り（第３図ａ）、この穴内に本考
案土留粋の筒体１を挿入配置した後、この筒体１内に作
業員が入って所定の深さまで手掘する（第３図ｂ）。First, a hole with a diameter of about 1 m and a depth of 1.
After digging a hole 12 of about 5 m (Fig. 3a) and inserting and arranging the cylindrical body 1 of the earth retaining material of the present invention into this hole, a worker enters the cylindrical body 1 and manually digs it to a predetermined depth ( Figure 3 b).

このとき、筒体１はその上端部の落下防止体６が地表面
に当接して穴内への落下が防止されると共に地表面の穴
壁面の崩壊を防止する。At this time, the fall prevention body 6 at the upper end of the cylindrical body 1 comes into contact with the ground surface to prevent it from falling into the hole and also to prevent the wall surface of the hole on the ground surface from collapsing.

穴１２を所定深さまで掘り終ったならば、この穴内に筒
体１を通して建柱すべき柱１３の基部を挿入して垂直に
立てる（第３図Ｃ）。Once the hole 12 has been dug to a predetermined depth, the base of the column 13 to be erected is inserted through the cylinder 1 into the hole and erected vertically (FIG. 3C).

次いで、穴１２を深さ約１．５ｍ程度まで埋め戻し、ク
レーン等により筒体１を地上に吊り上げ（第３図ｄ）、
掛外し式止め金具５を外して筒体１を前記第２図鎖線示
のように３数字状に開いて柱１３から外し、穴１２の埋
め戻しを完全に行なうものである（第３図ｅ）。Next, the hole 12 is backfilled to a depth of approximately 1.5 m, and the cylindrical body 1 is lifted to the ground using a crane or the like (Fig. 3 d).
The removable stopper 5 is removed, the cylinder 1 is opened in the shape of three figures as shown by the chain lines in Figure 2, and removed from the pillar 13, and the hole 12 is completely backfilled (Figure 3 e). ).

第４，５図は本考案土留枠の他の実施例を示すもので、
筒体１の一端に放散状且つ略等間隔に３枚の翼片１４１
〜１４３を突設し、この翼片を落下防止体６として例で
ある。Figures 4 and 5 show other embodiments of the earth retaining frame of the present invention.
Three wing pieces 141 are disposed at one end of the cylindrical body 1 in a radial manner and at approximately equal intervals.
- 143 are provided protrudingly, and this wing piece is used as the fall prevention body 6 in this example.

図示例の筒体１は横断面円形であるが３角形その他の多
角形であってもよい。Although the cylinder 1 in the illustrated example has a circular cross section, it may have a triangular or other polygonal shape.

また、筒体１は一対の半円体１ａ，ｌｂの両合せ部を全
て掛外し式の止め金具５で涸定して筒体１を組立て、不
使用時は止め金具５を外して半円体に分割するように構
戒することもできる。The cylindrical body 1 is assembled by completely tightening the mating parts of the pair of semicircular bodies 1a and 1b with a removable stopper 5, and when not in use, the cylindrical body 1 is assembled by removing the stopper 5 and forming a semicircular shape. It can also be arranged so that it is divided into parts of the body.

特に、このように構或すると分割した半円体１ａ，ｌｂ
を重ね合せることがで？、運搬、収納に便利である。In particular, when constructed in this way, the divided semicircles 1a, lb
Can it be superimposed? , convenient for transportation and storage.

以上の如く、本考案土留枠を使用することにより、建柱
のために砂地あるいは転石のある土地で穴掘する場合、
穴壁の崩壊を完全に防止することができる。As mentioned above, by using the earth retaining frame of the present invention, when digging holes in sandy soil or land with boulders for erection of pillars,
Collapse of the hole wall can be completely prevented.

その結果、穴径が不必要に大きくなることがないので排
土量も少なく、作業能率の向上が図られると共に穴の中
の作業員の安全が確保できる。As a result, since the diameter of the hole does not become unnecessarily large, the amount of soil removed is small, improving work efficiency and ensuring the safety of workers inside the hole.

さらに、本考案土留枠は２個以上に分割するか３数字状
に開いて建柱した柱の側方から取外すことができるので
、その取外し作業を簡単且つ容易に行なうことができる
等の効果が得られるものである。Furthermore, the earth retaining frame of the present invention can be separated into two or more parts or opened into three figures and removed from the side of the erected pillar, making the removal work simple and easy. That's what you get.

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

第１図は本考案土留粋の平面図、第２図は第１図Ｉ■−
ＩＩ線に沿う縦断正面図、第３図は本考案土留枠を使用
しての建柱工程の説明図、第４図は本考案土留粋の変形
例の平面図、第５図は第４図ＩＶＩＶ線に沿う縦断正面
図である。 Ａは土留枠、１は筒体、ｌａ，ｌｂは半円体、２は鋼製
鉄板、３は九棒、４は蝶番結合、５は掛外し式止め金具
、６は落下防止体、７〜７ｏは補強板、８、〜８ｏは凹
部空間、９はＵ字部材、１０は切欠き、１１は地面、１
２は穴、１３は柱、１４〜１４３は翼片。 なお、図中、同一符号は同一又は相当部分を示す。Figure 1 is a plan view of the proposed Tsuchidome, Figure 2 is Figure 1 I■-
3 is an explanatory diagram of the pillar erection process using the earth retaining frame of the present invention, Figure 4 is a plan view of a modified example of the earth retaining frame of the present invention, and Figure 5 is a front view along line II. FIG. 2 is a longitudinal sectional front view taken along line IVIV. A is a retaining frame, 1 is a cylindrical body, la and lb are semicircular bodies, 2 is a steel iron plate, 3 is a nine bar, 4 is a hinge joint, 5 is a removable stopper, 6 is a fall prevention body, 7- 7o is a reinforcing plate, 8 to 8o are recessed spaces, 9 is a U-shaped member, 10 is a notch, 11 is a ground, 1
2 is a hole, 13 is a pillar, and 14-143 are wing pieces. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 建柱すべき柱を通すことができ且つ少なくとも２個以上
に分割できるかまたは３数字状に開くことができる筒体
と、この筒体を地面にあけた穴に挿入したとき地表面に
当接して該筒体の穴内落下を防止するために該筒体の一
端部外面に突設した落下防止体とからなる建柱用土留枠
。A cylindrical body through which the pillar to be erected can pass, and which can be divided into at least two parts or opened into three figures, and when this cylindrical body is inserted into a hole drilled in the ground, it will come into contact with the ground surface. An earth retaining frame for building a pole, comprising a fall prevention body protruding from the outer surface of one end of the cylindrical body to prevent the cylindrical body from falling into the hole.