JP3531135B2 - Slope lock bolts or rebar fixtures - Google Patents
Slope lock bolts or rebar fixturesInfo
- Publication number
- JP3531135B2 JP3531135B2 JP03072599A JP3072599A JP3531135B2 JP 3531135 B2 JP3531135 B2 JP 3531135B2 JP 03072599 A JP03072599 A JP 03072599A JP 3072599 A JP3072599 A JP 3072599A JP 3531135 B2 JP3531135 B2 JP 3531135B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- pipe
- rotary joint
- rebar
- lock bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は法面の崩壊を防止
するためにロックボルト又は鉄筋を固定するところの法
面に穴を穿け、その穴にロックボルト等を挿入し、生コ
ンクリートを注入してロックボルト等を固定するとき用
いる法面用ロックボルト等の固定具であって、特に施工
中の穴壁の崩落を防止するため、穴から抜出すことな
く、ロックボルト等の挿入及び生コンクリートの注入を
可能にしたものに関する。The present invention relates to the drilled holes in slope at which fixes the locking bolt or rebar to prevent collapse of the slope, to insert the lock bolt or the like into the hole, sea cucumber <br / > for when to inject down cleats to secure the lock bolt, etc.
A fastener such as a slope locking bolt are, in particular to prevent the collapse of the hole walls in the construction, without withdrawing from the hole, allows <br/> insertion and injection of fresh concrete, such as lock bolt Regarding what you did .
【０００２】[0002]
【従来の技術】 山肌等の土地を掘削し、形成した法面
（段差面）の崩壊を防止するために、アンカー工事やロ
ックボルト工事・異径鉄筋保護工事・法面補強土工事等
を行っている。従来は、これらの工事に付随して、法面
に穴を穿ち、その穴に鉄筋又はロックボルトを挿入し、
生コンクリートを注入するに当って、穿孔用のロックビ
ットを穴から抜出した後、鉄筋・ロックボルト等の挿入
及び生コンクリートの注入を行うため、途中で屡々、振
動や衝撃を受けて穴壁が崩落して、穴が埋まり、ロック
ボルト等の挿入、生コンクリートの注入等工事の継続が
不可能になり、初めから再工事せざるを得なくなること
があると言う問題点がある。2. Description of the Related Art In order to prevent collapse of slopes (steps) formed by excavating land such as mountain slopes, anchor work , rock bolt work, different diameter rebar protection work, slope reinforcement soil Works are underway. Conventionally, in association with these construction, Chi puncture a hole in the slope, and inserting the reinforcing steel or Rokkuboru to its own hole,
Hitting the injecting raw concrete, after extracting the Rokkubi <br/> Tsu preparative for drilling the hole, the insertion of rebar rock bolts
And for performing the injection of the raw concrete, often in the middle, and collapsed hole wall subjected to vibration or impact, the holes are filled, the insertion of such rock bolts, becomes impossible to continue the injection such as construction of the raw concrete, There is a problem that it may be necessary to reconstruct from the beginning.
【０００３】[0003]
【発明が解決しようとする課題】 解決しようとする課
題は、上記従来の法面に穴を穿け、その穴にロックボル
ト等を挿入し、生コンクリートを注入してロックボルト
等を固定する方法は、鉄筋又はロックボルトの挿入及び
生コンクリートの注入を行うために、穿孔用のロックビ
ット等を穴から抜出す必要があり、そのため穴壁が崩落
して、穴が埋まり、工事の継続が不可能になり、初めか
ら再工事せざるを得なくなることがあることであって、
本発明は上記課題を解決したもので、ロックビットを穴
に残した状態でロックボルト等を挿入し、生コンクリー
トの注入後にロックビットを引上げ、その後生コンクリ
ートの硬化及びロックボルト等の固定を行うことが可能
で、穴壁が崩落して、穴が埋まることのない、ロックボ
ルト又は鉄筋の固定具を提供するものである。Problems to be Solved [0005], said drilled holes in the conventional slope, insert the lock bolt or the like into the hole, the lock bolt by injecting the raw concrete
How to fix the the like, in order to perform the injection of the reinforcing bars or Rokkuboru preparative insertion and <br/> raw concrete, it is necessary to withdraw the lock bit or the like for piercing the hole, therefore the hole wall is collapsed, The holes may be filled, making it impossible to continue the work, and it may be necessary to rebuild from the beginning.
The present invention solves the above problem, by inserting the state Delo Kkuboruto like leaving a lock bit in the hole <br/>, fresh concrete Cree
Pulling up the lock bit after the injection of capital, and then ready-mixed concrete chestnut
Can perform fixing of such curing及beauty b Kkuboruto of over preparative and collapsed hole wall, is never filled hole, there is provided a fastener of the lock bolt or rebar.
【０００４】[0004]
【課題を解決するための手段】 第１の発明は、図１乃
至図５に示す如く、断面円形の基端部１ａに一体に、そ
の基端部１ａに比べて径が大きく、且つ多数の突起Ｔを
備えた刃部１ｂを結合すると共に、基端部１ａと刃部１
ｂとの両端面間に貫通孔Ｒを設けたロックビット１、そ
のロックビット１の貫通孔Ｒに連通するよう基端部１ａ
に同軸に一端を螺着したパイプ２、及びそのパイプ２の
一端に同軸に螺着した回転継手３、回転継ぎ手３の他端
に同軸に螺着したドリフター４を有し、該回転継手３に
は側面から受入れた流体をパイプ２に導くようＬ字状連
通孔Ｌを設けてあり、その回転継手３に、前記パイプ２
内に空気，水及び生コンクリートを供給するための三方
コック５を備えてなり、回転継手３を外した状態でパイ
プ２及び貫通孔Ｒに鉄筋又はロックボルトを挿入し且つ
生コンクリート注入時には鉄筋又はロックボルト及び生
コンクリートを残してパイプ２と共にロックビット１を
引上げ可能な構造にした法面用ロックボルト又は鉄筋の
固定具である。Means for Solving the Problems The first invention is, as shown in FIGS. 1 to 5, integrally formed with a base end portion 1a having a circular cross section, having a diameter larger than that of the base end portion 1a, and having a large number of members. The blade portion 1b provided with the protrusion T is coupled, and the base end portion 1a and the blade portion 1 are joined together.
lock bit 1 having a through hole R between both end surfaces with b, and a base end portion 1a so as to communicate with the through hole R of the lock bit 1.
Has a pipe 2 whose one end is coaxially screwed, a rotary joint 3 which is coaxially screwed to one end of the pipe 2, and a drifter 4 which is coaxially screwed to the other end of the rotary joint 3. Is provided with an L-shaped communication hole L for guiding the fluid received from the side surface to the pipe 2, and the rotary joint 3 thereof is provided with the pipe 2
Air within, it includes a three-way cock 5 for supplying water and raw concrete, pie <br/> flop 2 and the through hole R and inserting reinforcing bars or Rokkuboru bets on when opening the rotary joint 3 < br /> raw concrete injection sometimes rebar or lock bolt and raw
Concrete is a fixture of slopes locking bolt or rebar to the lock bit 1 with pipe 2 to <br/> pulling structure capable to leave.
【０００５】第２の発明は、上記第１の発明の構成に加
えて、前記ロックビット１の貫通孔Ｒの前端面の開口１
ｃの位置を軸に対して偏心させ、また前記回転継手３
が、Ｌ字状連通孔Ｌを設け且つパイプ２の他端とドリフ
ター４とにそれぞれ同軸に螺着するコア部３ａ及びその
コア部３ａに回動自在に外嵌する外嵌部３ｂを備えたと
ころの回転継手３であり、外嵌部３ｂが、内面にＬ字状
連通孔Ｌの側面開口に臨む環状溝Ｃを形成すると共にそ
の環状溝Ｃに連通し且つ外面に垂設したノズルＮに連通
する連通孔Ｈを設けたところの外嵌部３ｂとしたもので
ある。A second aspect of the invention is, in addition to the structure of the first aspect, the opening 1 at the front end face of the through hole R of the lock bit 1.
The position of c is eccentric with respect to the shaft, and the rotary joint 3
And but with the outer fitting portion 3b for rotatably fitted on the core portion 3a and the core portion 3a screwed coaxially respectively to the other end drifter 4 and the pipe 2 is provided with L-shaped passage L
A rotary joint 3 of the roller, the outer fitting portion 3b, the and the outer surface communicating with the annular groove C of that <br/> to form a ring-shaped groove C facing the side opening of the L-shaped passage L to the inner surface The outer fitting portion 3b is provided with a communication hole H communicating with the vertically extending nozzle N.
【０００６】本発明によれば、ロックビットを穴に残し
た状態で、パイプ２から回転継手３を切離して、ロック
ボルト等の挿入及び生コンクリートの注入をし、その後
にロックボルト等と生コンクリートを残してロックビッ
ト等を引上げ、その後生コンクリートの硬化及びロック
ボルト等の固定を行うことが出来るため、穴壁が崩落し
て、穴が埋まることがない。According to the present invention, while leaving a lock bit in the hole, detach rotary joint 3 from the pipe 2, and the injection of insertion and raw concrete, such as Russia Kkuboruto, then lock bolt or the like and fresh concrete pulling up the lock bit or the like to leave, because then it is possible to perform the fixing of such curing及beauty b Kkuboruto raw concrete, to collapse the hole wall, is never filled hole.
【０００７】[0007]
【発明の実施の形態】 本発明の実施の形態例につい
て、図１乃至図５により説明すると、先ず１は土や岩石
に衝撃を与え、掘削するロックビットであって、断面円
形の基端部１ａに一体に高硬度の刃部１ｂを結合してあ
り、その刃部１ｂは基端部１ａに比べて径を大きくし、
多数の突起Ｔを設けてある。また、基端部１ａと刃部１
ｂとの両端面間に貫通孔Ｒを設けてあり、しかもその貫
通孔Ｒの前端面の開口１ｃの位置は軸に対して偏心させ
てある。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. 1 to 5. First, 1 is a rock bit for impacting and excavating soil or rock, and a base end portion having a circular cross section. A blade 1b having a high hardness is integrally connected to 1a, and the blade 1b has a larger diameter than the base end 1a,
A large number of protrusions T are provided. In addition, the base portion 1a and the blade portion 1
A through hole R is provided between both end faces with b, and the position of the opening 1c on the front end face of the through hole R is eccentric with respect to the shaft.
【０００８】２は前記ロックビット１の貫通孔Ｒに連通
するよう基端部１ａに同軸に一端を螺着したパイプ、３
はそのパイプ２の他端と後述するドリフター４とにそれ
ぞれ同軸に螺着する回転継手３であって、側面から受入
れた流体をパイプ２に導くようＬ字状連通孔Ｌを設けた
コア部３ａ及びそのコア部３ａに回動自在に外嵌する外
嵌部３ｂを備えている。なお、Ｌ字状連通孔Ｌは軸を通
る軸方向Ｍ−Ｍ部分の端に複数の半径方向部分を連結し
たものである。Reference numeral 2 is a pipe whose one end is coaxially screwed to the base end portion 1a so as to communicate with the through hole R of the lock bit 1.
Is a rotary joint 3 screwed coaxially to the other end of the pipe 2 and a drifter 4 described later, and has a core portion 3a provided with an L-shaped communication hole L for guiding the fluid received from the side surface to the pipe 2. And an outer fitting portion 3b rotatably fitted on the core portion 3a. The L-shaped communication hole L is formed by connecting a plurality of radial portions to the end of the axial MM portion passing through the shaft.
【０００９】外嵌部３ｂについて説明すると、Ｃは内面
周方向に、コア部３ａのＬ字状連通孔Ｌの側面開口に臨
む位置に形成した環状溝、Ｎは外嵌部３ｂの外面で環状
溝Ｃに当る部分に垂設したノズル、ＨはノズルＮから環
状溝Ｃに達する連通孔である。なお、ノズルＮの他端は
三方コック５に接続されていて、切替えることにより、
空気又は水或いは生コンクリートのいずれかを、ロック
ビット１の先端に供給することが可能にしてある。[0009] Referring to the outer fitting part 3b, C is the inner surface circumferentially, the ring-shaped groove formed at a position facing the side opening of the L-shaped passage L of the core portion 3a, N is the outer surface of the outer fitting portion 3b ring nozzle, H is a nozzle N which is vertically provided in the portion corresponding to the annular <br/> groove C
A communication hole reaching Jo groove C. The other end of the nozzle N is connected to the three-way cock 5, and by switching the
Either the air or water or raw concrete, are to be able to supply the tip of the lock bit 1.
【００１０】最後に回転継手３に螺着するドリフター４
は、図示されない空気圧又は油圧シリンダーにより作動
し、回転継手３及びパイプ２を介して、ロックビット１
を往復及び回動させるよう構成してある。Finally, the drifter 4 screwed onto the rotary joint 3
Is operated by a pneumatic or hydraulic cylinder (not shown), and through the rotary joint 3 and the pipe 2, the lock bit 1
Is configured to reciprocate and rotate.
【００１１】作用について説明する。ロックビット１，
パイプ２及び回転継手３を順次接続したうえ、回転継手
３にドリフター４を接続する。次いでノズルＮに空気又
は水を供給可能に三方コック５をセットしたうえ、ロッ
クビット１の前端面を法面６の穿孔位置に当てて、ドリ
フター４を作動させる。そうすることによって、ロック
ビット１が往復運動しながら、（後退時に）回動し、穿
孔位置に強い衝撃を与え、土や岩石を掘削する。その
際、三方コック５から回転継手３，パイプ２、及びロッ
クビット１を通って、供給される水又は空気により、掘
削及び破砕によって生じた土や岩石の粉を、穴壁７ａと
固定具の外面との間を通って地上に運び、排除する。The operation will be described. Lock bit 1 ,
After connecting the pipe 2 and the rotary joint 3 in order, the drifter 4 is connected to the rotary joint 3. Then after having set the three-way cock 5 air or water can be supplied to the nozzle N, against the front end surface of the lock bit 1 to the perforation position of the slope 6, actuating the drifter 4. By doing so, the rock bit 1 reciprocates and rotates (when retracted), giving a strong impact to the drilling position and excavating the soil or rock. At that time, the rotary joint 3 from three-way cock 5, through pipe 2, and the lock bit 1, with water or air is supplied, the powder soil and rock occurred by the drilling and fracturing, the hole wall 7a fastener Carry it to the ground through the exterior and eliminate it.
【００１２】穿孔中、Ｌ字状連通孔Ｌの開口１ｃが軸に
対して偏心しており、回動時に開口１ｃが軸の周りに回
動するため、一回の衝撃では、Ｌ字状連通孔Ｌの開口１
ｃに面していて、破砕されなかった部分も、次々と突起
Ｔのあるロックビット１の刃部１ｂの前端面の衝撃を繰
返し受けることになる。そのため、従来のものに見られ
た、衝撃を受けることなく、破砕されないで、穴底７ｂ
に柱状に残される未掘削部分（コア）が生じると言う問
題点は解消される。During the perforation, the opening 1c of the L-shaped communication hole L is eccentric with respect to the shaft, and the opening 1c rotates around the shaft when rotating, so that the L-shaped communication hole can be obtained by a single impact. L opening 1
Even the portion which is facing the c and is not crushed is repeatedly subjected to the impact of the front end face of the blade portion 1b of the lock bit 1 having the protrusion T one after another. Therefore, the hole bottom 7b , which is not seen in the conventional one, is not crushed without being impacted.
The problem that an unexcavated portion (core) left in a columnar shape is generated is solved.
【００１３】穿孔終了後は、ロックビット１及びパイプ
２を穿孔した穴７中に残したまま、回転継手３をパイプ
２から切離す。次に上側からロックボルト又は鉄筋８を
パイプ２に通すと共にロックビット１に挿入する。ロッ
クボルト又は鉄筋８の挿入が完了したら、再び回転継手
３をパイプ２に接続し、三方コック５を生コンクリート
側に切替え、ポンプ（図示せず）でロックビット１に生
コンを送込む。[0013] After the drilling ends, leaving the lock bit 1 and the pipe 2 in the hole 7 drilled, to separating the rotary joint 3 from the pipe 2. Next, from the upper side, lock bolt or rebar 8
Pass through pipe 2 and insert into lock bit 1. After insertion of the locking bolt or rebar 8 is completed, the rotary joint 3 is connected to the pipe 2 again, the three-way cock 5 switch to raw concrete <br/> side, feeding the fresh concrete to the lock bit 1 by a pump (not shown) Put in.
【００１４】その際、ロックビット１は、引上げ速度が
大き過ぎると、注入した生コンクリートとロックビット
１の下端面との間に中空部（隙間）が形成され、穴壁７
ａが崩落するおそれがあるため、生コンクリートの注入
量に合わせてゆっくりと引上げ、ロックビット１の移動
した後の中空部が直ちに生コンクリート９及びロックボ
ルト又は鉄筋８により埋められようにする。そうするこ
とによって、穴壁の崩落を生じることなく、工事を継続
して施工出来る。また、ロックボルト等は、完全に生コ
ンクリートで包まれるため、コンクリートとロックボル
ト等との付着力を増大させ、コンクリート強度を増大さ
せることが出来るだけでなく、ロックボルト等と空気と
の接触を防ぎ、錆の発生を防止することが出来る。[0014] At that time, the lock bit 1, the pulling rate is too large, hollow portions between the injected fresh concrete and the lower end surface of the lock bit 1 (gap) is formed, the hole wall 7
because it may a is collapsed, slowly pulled in accordance with the injection amount of the raw concrete, hollow portion after the movement of the lock bit 1 is immediately so filled with the raw concrete 9 and the lock bolt or rebar 8. By doing so, without causing the collapse of the hole wall, can facilities Engineering to continue the construction work. Further, since Rokkuboru DOO etc., wrapped completely in sea cucumber <br/> down cleats, concrete and Rokkuboru
Increases the adhesion between bets like, not only can increase the concrete strength, prevent contact between Rokkuboru bets like and air, it is possible to prevent the occurrence of rust.
【００１５】[0015]
【発明の効果】 本発明は以上のように構成されるた
め、従来のものに見られた、穴の底に柱状に残される未
掘削部分（コア）が生じると言う問題点が解消される。
しかも、穿孔した穴壁の崩落を生じることなく、工事を
継続して施工出来、注入又は挿入したコンクリートとロ
ックボルト或いは鉄筋との付着力を増大させ、コンクリ
ート強度を増大させると共に、ロックボルト等の錆の発
生を防止することが出来る。EFFECTS OF THE INVENTION Since the present invention is configured as described above, the problem that the unexcavated portion (core) left in a columnar shape at the bottom of the hole , which is found in the conventional one, is solved.
Moreover, without causing collapse of the drilled hole walls, can construction to continue work, to increase the adhesion between the injected or inserted concrete and rock bolts or reinforcement, with increasing concrete strength, such as Rokkuboru bets It is possible to prevent the generation of rust.
【図１】 本発明の実施の形態例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】 回転継手を示す断面図である。FIG. 2 is a cross-sectional view showing a rotary joint .
【図３】 パイプを示す断面図である。FIG. 3 is a cross-sectional view showing a pipe.
【図４】 ロックビットを示す断面図である。FIG. 4 is a cross-sectional view showing a lock bit.
【図５】 図５の前面図である。FIG. 5 is a front view of FIG.
１ ロックビット １ａ 基端部 １ｂ 刃部 １ｃ 開口 ２ パイプ ３ 回転継手 ３ａ コア部 ３ｂ 外嵌部 ４ ドリフター ５ 三方コック６ 法面 ７ 穴 ７ａ 穴壁 ７ｂ 穴底 ８ ロックボルト，鉄筋 ９ 生コンクリート Ｃ 溝 Ｈ 連通孔 Ｌ Ｌ字状連通孔 Ｍ−Ｍ 軸方向 Ｎ ノズル Ｒ 貫通孔 Ｔ 突起1 Rock Bit 1a Base End 1b Blade 1c Opening 2 Pipe 3 Rotating Joint 3a Core 3b Outer Fitting 4 Drifter 5 Three-way Cock 6 Slope 7 Hole 7a Hole Wall 7b Hole Bottom 8 Rock Bolt, Reinforcing Bar 9 Raw Concrete C Groove H communication hole L L-shaped communication hole MM axial direction N nozzle R through hole T projection
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 17/20 106 E21D 20/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) E02D 17/20 106 E21D 20/00
Claims (2)
の基端部（１ａ）に比べて径が大きく、且つ多数の突起
（Ｔ）を備えた刃部（１ｂ）を結合すると共に、基端部
（１ａ）と刃部（１ｂ）との両端面間に貫通孔（Ｒ）を
設けたロックビット（１）、そのロックビット（１）の
貫通孔（Ｒ）に連通するよう基端部（１ａ）に同軸に一
端を螺着したパイプ（２）、及びそのパイプ（２）の一
端に同軸に螺着した回転継手（３）、回転継手（３）の
他端に同軸に螺着したドリフター（４）を有し、該回転
継手（３）には側面から受入れた流体をパイプ（２）に
導くようＬ字状連通孔（Ｌ）を設けてあり、その回転継
手（３）に、前記パイプ（２）内に空気，水及び生コン
クリートを供給するための三方コック（５）を備えてな
り、回転継手（３）を外した状態でパイプ（２）及び貫
通孔（Ｒ）に鉄筋又はロックボルトを挿入し且つ生コン
クリート注入時には鉄筋又はロックボルト及び生コンク
リートを残してパイプ（２）と共にロックビット（１）
を引上げ可能な構造にしたことを特徴とする法面用ロッ
クボルト又は鉄筋の固定具。1. A blade (1b) having a large cross section and a large number of protrusions (T) is integrally joined to a base end (1a) having a circular cross section. At the same time, the lock bit (1) is provided with a through hole (R) between both end surfaces of the base end (1a) and the blade (1b), and the lock bit (1) is communicated with the through hole (R). A pipe (2) having one end coaxially screwed to the base end (1a), a rotary joint (3) coaxially screwed to one end of the pipe (2), and a coaxial to the other end of the rotary joint (3). With a screwed drifter (4),
The joint (3) is provided with an L-shaped communication hole (L) for guiding the fluid received from the side surface to the pipe (2), and the rotary joint (3) has air and water inside the pipe (2). And raw concrete
Be provided with a cock (5) three-way for supplying the cleat, the rotary joint (3) and inserting the reinforcing steel or Rokkuboru preparative pipe (2) and transmural <br/> hole (R) when opening the Raw concrete
When injecting cleats , rebar or rock bolt and raw concrete
Lock bit (1) along with pipe (2) leaving the reet
Fastener slopes for locking <br/> Kuboruto or rebar you characterized in that the pulling-up structure capable.
端面の開口（１ｃ）の位置を軸に対して偏心させ、また
前記回転継手（３）が、Ｌ字状連通孔（Ｌ）を設け且つ
パイプ（２）の他端とドリフター（４）とにそれぞれ同
軸に螺着するコア部（３ａ）及びそのコア部（３ａ）に
回動自在に外嵌する外嵌部（３ｂ）を備えたところの回
転継手（３）であり、外嵌部（３ｂ）が、内面にＬ字状
連通孔（Ｌ）の側面開口に臨む環状溝（Ｃ）を形成する
と共にその環状溝（Ｃ）に連通し且つ外面に垂設したノ
ズル（Ｎ）に連通する連通孔（Ｈ）を設けたところの外
嵌部（３ｂ）であることを特徴とする請求項１記載の法
面用ロックボルト又は鉄筋の固定具。Wherein eccentrically position of the front end surface of the opening (1c) of the through-hole of the lock bit (1) (R) with respect to the axis, also <br/> the rotary joint (3) is, L-shaped A core part (3a) provided with a communication hole (L) and coaxially screwed to the other end of the pipe (2) and the drifter (4), and an external fitting rotatably fitted to the core part (3a). Times with part (3b)
Rolling a joint (3), the outer fitting portion (3b) forms a ring-shaped groove (C) facing the side opening of the L-shaped passage on the inner surface (L)
Outside was provided communicating hole (H) communicating with the nozzle (N) which is vertically in and outer surfaces communicating with the annular groove (C) with
Law of claim 1, wherein you being a fitting portion (3b)
Surface lock bolt or rebar fixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03072599A JP3531135B2 (en) | 1999-02-09 | 1999-02-09 | Slope lock bolts or rebar fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03072599A JP3531135B2 (en) | 1999-02-09 | 1999-02-09 | Slope lock bolts or rebar fixtures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000226999A JP2000226999A (en) | 2000-08-15 |
| JP3531135B2 true JP3531135B2 (en) | 2004-05-24 |
Family
ID=12311642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03072599A Expired - Lifetime JP3531135B2 (en) | 1999-02-09 | 1999-02-09 | Slope lock bolts or rebar fixtures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3531135B2 (en) |
-
1999
- 1999-02-09 JP JP03072599A patent/JP3531135B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000226999A (en) | 2000-08-15 |
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