JPH01308604A - Water-discharging device used for boring machine - Google Patents

Water-discharging device used for boring machine

Info

Publication number
JPH01308604A
JPH01308604A JP13919488A JP13919488A JPH01308604A JP H01308604 A JPH01308604 A JP H01308604A JP 13919488 A JP13919488 A JP 13919488A JP 13919488 A JP13919488 A JP 13919488A JP H01308604 A JPH01308604 A JP H01308604A
Authority
JP
Japan
Prior art keywords
water
blade body
concrete
wall
tube
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.)
Pending
Application number
JP13919488A
Other languages
Japanese (ja)
Inventor
Yasuaki Kanbayashi
神林　康明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP13919488A priority Critical patent/JPH01308604A/en
Publication of JPH01308604A publication Critical patent/JPH01308604A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

PURPOSE:To enable the wall surface of reinforced concrete to be bored without contaminating said wall surface by sucking the water, the concrete and the sludge of steel bar accumulated in the space formed by three members of the outer peripheral surface of the blade body inserted into a partitioning member, a wall body and the partitioning member is boring operation. CONSTITUTION:A tube 28 is brought in pressure-contact with the wall surface of concrete and the outer peripheral surface of a blade body 20, and the space S surrounded with the tube 28, the wall surface and the outer peripheral surface of the blade body 22 is formed. While the feeding of water from a feeding cock 24 is started, when an outer hose 46 is connected to a negative pressure source, water is ejected from the feeding hole 20b of the inner bottom-surface 20a in the blade body 20, and is fed into the cut groove of concrete along the inner peripheral surface of the blade body 20. The water fed to the point of a diamond tip 21 is discharged to the opening of the cut groove from the outer peripheral surface of the blade body 20 by the rotation of the blade body 20. Then, water, concrete and the sludge of a steel bar are accummulated in the space S and are sucked into a tube 28 from a sucking hole 28a, and further they are sucked and discharged by way of an inner hose 42.

Description

【発明の詳細な説明】 （′ｉ！ｒｉ業上の利用分野） 本発明は、鉄筋コンクリートの建物などに孔を開けるた
めの穿孔機に用いる水の排出装置に関する。DETAILED DESCRIPTION OF THE INVENTION ('i!ri Industrial Application Field) The present invention relates to a water discharge device used in a drilling machine for drilling holes in reinforced concrete buildings and the like.

（従来技術） 鉄筋コンクリートの建物などにおいて、１５年〜２０年
を経過すると、建物の配管などの設備が劣化し、交換す
ることが必要となる。この際、床面や壁面等に孔を開け
て配管などの交換をする。(Prior Art) In reinforced concrete buildings and the like, after 15 to 20 years, equipment such as piping in the building deteriorates and needs to be replaced. At this time, holes are made in the floor or wall to replace piping, etc.

このための従来の穿孔機としては、回転する円筒の刃体
先端番こダイヤモンドチップを装着したものを用いてい
る。この場合、刃先のダイヤモンドチップの加熱を防止
するとともに潤滑のため、水を供給して孔を開けるよう
にしている。A conventional drilling machine for this purpose uses a rotating cylindrical blade equipped with a diamond tip. In this case, water is supplied to drill the hole in order to prevent the diamond tip at the cutting edge from heating and to provide lubrication.

（発明が解決しようとする課題） 上記穿孔機では、供給した水と、コンクリートや鉄筋の
切り粉とが混じり合い、これが孔を開ける周囲に飛び散
り壁面等を汚してしまう。特に、室内から孔を開ける際
には内装材を汚してしまい、また室内のため水洗いをす
ることもできずなかなか汚れを落とし難くい。(Problems to be Solved by the Invention) In the above-mentioned drilling machine, the supplied water mixes with chips from concrete and reinforcing bars, and this scatters around the area where the hole is being drilled, staining the walls and the like. In particular, when opening the hole from inside the room, the interior material gets dirty, and since it is indoors, it is not possible to wash it with water, so it is difficult to remove the dirt.

そのため、戸外から壁面に孔を開け、その後素早く壁体
の汚れを水で洗い落とすようにしているが、多くの人手
を必要とする。また、高い壁面に孔を開ける際には、足
場を組み、孔を開Ｃす、その後同様に素早く壁面の汚れ
を水で洗い落としていた。この作業は高所であり危険を
伴うとともに面倒な作業であり、また多くの人手と経費
のかかる作業でもある。For this reason, holes are drilled into the wall from outside and the dirt is then quickly washed off with water, but this requires a lot of manpower. Furthermore, when drilling a hole in a high wall, a scaffold was erected, the hole was opened, and then the dirt on the wall was quickly washed off with water. This work is dangerous and troublesome at high places, and also requires a lot of manpower and expense.

そこで、本発明は、鉄筋コンクリートの壁面を汚すこと
なく孔を開けることができる穿孔機に用いる水の排出装
置を提供することを目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a water discharge device for use in a drilling machine that can drill holes in reinforced concrete walls without staining them.

（問題点を解決するための手段） この発明は上記課題を解決するために次の構成を備えて
なる。(Means for Solving the Problems) In order to solve the above problems, the present invention includes the following configuration.

すなわち、コンクリート壁、床面等の壁体に孔を開ける
ために、筒状の回転する刃体を有し、該刃体の内側面か
ら冷却および潤滑用の水を噴出し、穿設する孔内に水を
供給して孔を開ける穿孔機に用いる水の排出装置であっ
て、壁体の穿設すべき孔を囲んで壁体に接して取り付け
可能であるとともに、穿孔機の前記刃体外径とほぼ同一
の内径を有するリング状の区画材と、穿孔時該区画材に
挿入される刃体の外周面と壁体と区画材との三者により
区画される空間に溜った水、およびコンクリ−１〜や鉄
筋の切り粉を吸引する吸引機構とを具備する。In other words, in order to drill holes in walls such as concrete walls and floors, the hole is drilled by having a cylindrical rotating blade and spouting water for cooling and lubrication from the inner surface of the blade. This is a water discharge device used in a drilling machine that supplies water to the inside of a drilling machine to drill a hole, and is capable of being mounted in contact with a wall surrounding a hole to be drilled in the wall, and is capable of discharging water from outside the blade of the drilling machine. Water accumulated in a space defined by a ring-shaped partition material having an inner diameter that is approximately the same as the diameter, the outer peripheral surface of a blade inserted into the partition material during drilling, the wall body, and the partition material; It is equipped with a suction mechanism that sucks chips of concrete 1 and reinforcing bars.

（作用） 次の本発明の作用について述べる。(effect) The following operation of the present invention will be described.

壁体に穿設する孔の周囲に、壁体、刃体外周面および区
画材とによりリング状の空間を区画し、この空間に刃体
の回転により排出される水およびコンクリート等が溜め
られる。そして、溜められた水およびコンクリート等の
切り粉は、吸引機構により吸引され順次排出され、広範
囲に壁体を汚すことがない。A ring-shaped space is defined around the hole drilled in the wall by the wall, the outer peripheral surface of the blade, and the partitioning material, and water, concrete, etc. discharged by the rotation of the blade are stored in this space. The accumulated water and chips of concrete, etc. are sucked in by the suction mechanism and discharged one by one, so that they do not stain the wall over a wide area.

（実施例） 以下本発明の好適な実施例を添付図面に基づいて詳細に
説明する。(Embodiments) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

第１図は穿孔機の要部を示す部分縦断面図であり、第２
図は穿孔機の全体を示す参考図である。Figure 1 is a partial vertical sectional view showing the main parts of the drilling machine;
The figure is a reference diagram showing the entire drilling machine.

第２図に示す穿孔機１０は、ベース１２の中央に大きく
孔１２ａが開口している。また、ベース１２から２本の
ガイド柱１４が起立し、このガイド柱１４にはスプリン
グ１６が巻回している。ガイド柱１４に沿って移動可能
な可動枠１８が設けられ、スプリング１６により上方に
付勢されている。可動枠１８には、ベース１２の孔１２
ａと軸線が一致するように、筒状の刃体２０が回動可能
に装着されいる。刃体２０は可動枠１８内のクラッチ（
図示せず）を介して、可動枠１８の上面に突出する駆動
軸２２と連結し、この駆動軸２２はドリル等の適宜駆動
源に連結する。The drilling machine 10 shown in FIG. 2 has a large hole 12a opened in the center of the base 12. Further, two guide columns 14 stand up from the base 12, and a spring 16 is wound around the guide columns 14. A movable frame 18 is provided that is movable along the guide column 14 and is urged upward by a spring 16. The movable frame 18 has holes 12 in the base 12.
A cylindrical blade 20 is rotatably mounted so that its axis coincides with a. The blade body 20 is attached to a clutch (
(not shown) to a drive shaft 22 protruding from the upper surface of the movable frame 18, and this drive shaft 22 is connected to an appropriate drive source such as a drill.

また、２４は給水用のコックであり、筒状の刃体２０の
内底面から水が噴出するように形成されている。第１図
に示すように、刃体２０の底面２０ａに水の供給孔２０
ｂが形成されている。刃体２０の先端縁にダイヤモンド
チップ２１が装着されている。Further, 24 is a water supply cock, which is formed so that water is spouted from the inner bottom surface of the cylindrical blade body 20. As shown in FIG. 1, a water supply hole 20 is provided on the bottom surface 20a of the blade body 20.
b is formed. A diamond tip 21 is attached to the tip edge of the blade body 20.

続いて、水等を排出するための吸引機構について説明す
る。Next, a suction mechanism for discharging water and the like will be explained.

前記ベース１２の孔１２ａの内周面に接合するリング状
のガイドリング２６が嵌合している。そして、ガイドリ
ング２６と刃体２０との間に、リング状の吸入用の区画
材としてのチューブ２８が配置されている。このリング
状に形成されたチューブ２８内径は、刃体２０の外径と
ほぼ同一に形成されている。また、チューブ２８を上方
から押さえる平面形状がＣ字状のチューブ押さえ３０が
位置している。このチューブ押さえ３０の近傍にベース
１２からネジ杆３２が起立している。このネジ杆３２が
貫通するように抑圧片３４が設けられ、ネジ杆３２に螺
合する蝶ナツト３６により押圧片３４がベース１２方向
に押さえられる。そして、チューブ２８．壁体および刃
体２２外周面に囲まれたリング状の空間Ｓが区画される
。A ring-shaped guide ring 26 is fitted into the inner peripheral surface of the hole 12a of the base 12. A tube 28 serving as a ring-shaped suction partition is disposed between the guide ring 26 and the blade body 20. The inner diameter of this ring-shaped tube 28 is approximately the same as the outer diameter of the blade body 20. Further, a tube presser 30 having a C-shaped planar shape is positioned to press the tube 28 from above. A screw rod 32 stands up from the base 12 near the tube holder 30. A pressing piece 34 is provided so that the threaded rod 32 passes through it, and the pressing piece 34 is pressed toward the base 12 by a wing nut 36 that is screwed into the screw rod 32. And tube 28. A ring-shaped space S surrounded by the wall and the outer peripheral surface of the blade 22 is defined.

前記チューブ２８が壁面と刃体２０の側面に接する部分
の間のほぼ９０度の周囲に吸入孔２８ａが複数側聞いて
いる。A plurality of suction holes 28a are formed around approximately 90 degrees between the portion where the tube 28 contacts the wall surface and the side surface of the blade body 20.

また、前記平面Ｃ字状のチューブ押さえ３０の切れた部
分に対応して、チューブ２８に吸引用の継手４０が固定
されている。この継手４０にインナーホース４２ａの一
端が接続し、他端が軸線に沿う貫通口４４ａが設けられ
たアダプタ４４に接続している。このアダプタ４４はア
ウターホース４６内に挿入され、アウターホース４６の
先端が継手４０近傍まで延出し、先端が開放している。Further, a suction joint 40 is fixed to the tube 28 corresponding to the cut portion of the C-shaped tube holder 30 in plan view. One end of an inner hose 42a is connected to this joint 40, and the other end is connected to an adapter 44 provided with a through hole 44a along the axis. This adapter 44 is inserted into an outer hose 46, and the tip of the outer hose 46 extends to the vicinity of the joint 40, and the tip is open.

また、アダプタ４４の周面には軸方向の凹溝４４ａが複
数刻設されている。さらに、アダプタ４４に対応するア
ウターホース４６の周面に、アウターホース４６を固定
するための締付けバンド４８により位置決めされている
。一方、アウターホース４６の他端は負圧源（図示せず
）に接続されている。Further, a plurality of grooves 44a in the axial direction are formed on the peripheral surface of the adapter 44. Further, a tightening band 48 for fixing the outer hose 46 is positioned on the circumferential surface of the outer hose 46 corresponding to the adapter 44 . On the other hand, the other end of the outer hose 46 is connected to a negative pressure source (not shown).

続いて、上記実施例の孔開けの動作について述べる。Next, the operation of drilling holes in the above embodiment will be described.

（ａｌ孔を開けようとする壁体の表面にベース１２を固
定する。(Fix the base 12 to the surface of the wall where the al hole is to be drilled.

あ）ベース１２に起立するネジ杆３２上の蝶ナツト３６
を締付け抑圧片３４およびチューブ押さえ３０を介して
、チューブ２８をコンクリートの壁面および刃体２０の
外周面に圧接する。そして、チューブ２８．壁面および
刃体２２外周面に囲まれた空間Ｓが区画される。A) Wing nut 36 on the threaded rod 32 standing on the base 12
The tube 28 is pressed against the concrete wall surface and the outer peripheral surface of the blade body 20 via the clamping piece 34 and the tube presser 30. And tube 28. A space S surrounded by the wall surface and the outer peripheral surface of the blade body 22 is defined.

ｆｃｌ適宜駆動源により駆動軸２２に回転力を伝達して
、刃体２０を回転させる。刃体２０はチューブ２８に対
し摺動している。fcl A rotational force is transmitted to the drive shaft 22 by an appropriate drive source to rotate the blade body 20. The blade body 20 is sliding against the tube 28.

ｆｄｌ同時に、給水コック２４から水の供給を開始する
とともに、アウターホース４６を負圧源に接続する。fdl At the same time, water supply from the water supply cock 24 is started, and the outer hose 46 is connected to a negative pressure source.

ｔｅｌ刃体２０の内底面２０ａの供給孔２０ｂから水が
噴き出し、刃体２０の内周面に沿ってコンクリ−１・の
切断溝内に供給され、刃体２０先端のダイヤモンドチッ
プ２１を冷却するとともに潤滑材として使用する。Water gushes out from the supply hole 20b of the inner bottom surface 20a of the blade body 20, is supplied into the cutting groove of the concrete 1 along the inner peripheral surface of the blade body 20, and cools the diamond tip 21 at the tip of the blade body 20. It is also used as a lubricant.

ｆｆｌそして、ダイヤモンドチップ２１の先端に供給さ
れた水は、順次噴出する水に押し出されるとともに、刃
体２０の回転により（負圧源の吸引力による力も加わり
）、刃体２０外周面から切断溝の開口に向かって排出さ
れる。この際、コンクリートや鉄筋の切り粉も水と混ざ
り合って排出される。fflThen, the water supplied to the tip of the diamond tip 21 is pushed out by the sequentially jetting water, and due to the rotation of the blade body 20 (also with the addition of suction force from the negative pressure source), a cutting groove is formed from the outer circumferential surface of the blade body 20. is discharged toward the opening. At this time, chips from concrete and reinforcing steel are also mixed with water and discharged.

（ｇｌそして、水とコンクリートや鉄筋の切り粉は空間
Ｓに溜り、チューブ２８の吸入孔２８ａからチューブ２
８内に吸引される。さらに、インナーホース４２を介し
て吸引され排出される。(gl Then, water and chips from concrete and reinforcing bars accumulate in the space S, and from the suction hole 28a of the tube 28 the tube 2
8. Furthermore, it is sucked and discharged via the inner hose 42.

（６）また、チューブ２８のコンクリートの壁体の表面
および刃体２０の外周面に押圧した部分から水が漏れ出
ても、アウターホース４６の先端からも吸引しているた
め、排水が飛散することがない。(6) Furthermore, even if water leaks from the part of the tube 28 that is pressed against the surface of the concrete wall and the outer circumferential surface of the blade 20, the water will not scatter because it is also sucked from the tip of the outer hose 46. Never.

また、アウターホース４６の先端から外気を吸引するた
め、インナーホース４２の吸引力が最適に調節される。Furthermore, since the outside air is sucked from the tip of the outer hose 46, the suction force of the inner hose 42 is optimally adjusted.

第４図〜第６図は他の実施例を示す。4 to 6 show other embodiments.

各実施例はリング状の区画材５０を用い、この区画材５
０、コンクリートの壁面および刃体２０の外周面により
空間Ｓを区画する。そして、空間Ｓから直接インナーホ
ースの先端を接続しても良い、４図は断面円形状の区画
材５０ａを用いた。In each embodiment, a ring-shaped partitioning material 50 is used, and this partitioning material 5
0, a space S is defined by the concrete wall surface and the outer peripheral surface of the blade body 20. Then, the tip of the inner hose may be connected directly from the space S. In FIG. 4, a partition member 50a having a circular cross section is used.

第５図は断面六角形状の区画材５０ｂを用いた。In FIG. 5, a partitioning material 50b having a hexagonal cross section is used.

第６図は中空の区画材５０ｃを用いた。In FIG. 6, a hollow partition member 50c is used.

なお、チューブ２８の周面に軸線方向に伸びる連続する
凹凸条を刻設することにより、チューブ２８の表面の柔
軟性が増し、コンクリートの壁面および刃体２０の外周
面に対するチューブ２８の密着性が一層向上する。Note that by carving continuous uneven stripes extending in the axial direction on the circumferential surface of the tube 28, the flexibility of the surface of the tube 28 is increased, and the adhesion of the tube 28 to the concrete wall surface and the outer circumferential surface of the blade body 20 is improved. Improve further.

以上、この発明の好適な実施例について種々説明してき
たが、区画材、コンクリートの壁体の表面および刃体の
外周面により空間を区画するようにし、この空間から排
出する水を吸引して排出すれば良く、また区画材の断面
形状はいかなる形状でも良いなど１発明の精神を逸脱し
ない範囲内において多くの改変を施しうろことはもちろ
んである。Various preferred embodiments of the present invention have been described above, but the space is divided by the partitioning material, the surface of the concrete wall, and the outer peripheral surface of the blade, and water to be discharged from this space is sucked and discharged. Of course, many modifications may be made without departing from the spirit of the invention, such as the cross-sectional shape of the partitioning material may be of any shape.

（発明の効果） 本発明は以上のように構成され、次に示すような顕著な
作用効果を奏する。(Effects of the Invention) The present invention is configured as described above, and has the following remarkable effects.

冷却および潤滑用に供給した水が、筒状の刃体で開けた
コンクリートの壁面の孔の口縁をほとんど汚すことがな
く、孔の周囲に飛び散り壁面等を汚すことがない。Water supplied for cooling and lubrication hardly stains the rim of a hole in a concrete wall made with a cylindrical blade, and does not scatter around the hole and stain the wall.

したがって、従来のように、戸外から壁面に孔を開ける
必要が無く、屋内から孔を開けることができる。このた
め、足場を組む手間も必要でなく、人手も少なく、また
危険を伴うこともない。Therefore, there is no need to drill holes in the wall from outside as in the past, and the holes can be drilled from indoors. Therefore, there is no need to construct scaffolding, there is less manpower, and there is no risk involved.

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

第１図は穿孔機の要部縦断面図、第２図は穿孔機の斜視
図、第３図は排水をするためのチューブ等の斜視説明図
、第４図〜第６図は他の実施例を示す部分縦断面図であ
る。 １０・・・穿孔機、 １２・・・ベース、１４・・・ガイド柱、１６・・・ス
プリング、 １８・・・可動枠、２０・・・刃体、 ２２・・・駆動軸。 ２８・・・チューブ： ３０・・・チューブ押さえ、 ４２・・・インナーホース、 ４６・・・アウターホース。 第１図 第　　　　２　　　　図 ４６　　　　　　　第　　　３　　　　図第４図　　　
第５図　　　哨６図Fig. 1 is a vertical cross-sectional view of the main parts of the drilling machine, Fig. 2 is a perspective view of the drilling machine, Fig. 3 is a perspective explanatory diagram of a tube for draining water, etc., and Figs. 4 to 6 are other implementations. FIG. 3 is a partial longitudinal sectional view showing an example. DESCRIPTION OF SYMBOLS 10... Drilling machine, 12... Base, 14... Guide column, 16... Spring, 18... Movable frame, 20... Blade body, 22... Drive shaft. 28...Tube: 30...Tube holder, 42...Inner hose, 46...Outer hose. Figure 1 Figure 2 Figure 46 Figure 3 Figure 4
Figure 5: Figure 6

Claims (1)

【特許請求の範囲】 １、コンクリート壁、床面等の壁体に孔を開けるために
、筒状の回転する刃体を有し、該刃体の内側面から冷却
および潤滑用の水を噴出し、穿設する孔内に水を供給し
て孔を開ける穿孔機に用いる水の排出装置であって、 壁体の穿設すべき孔を囲んで壁体に接して取り付け可能
であるとともに、穿孔機の前記刃体外径とほぼ同一の内
径を有するリング状の区画材と、 穿孔時該区画材に挿入される刃体の外周面と壁体と区画
材との三者により区画される空間に溜った水、およびコ
ンクリートや鉄筋の切り粉を吸引する吸引機構とを具備
する穿孔機に用いる水の排出装置。[Claims] 1. It has a cylindrical rotating blade for making holes in walls such as concrete walls and floors, and jets water for cooling and lubrication from the inner surface of the blade. A water discharge device used for a drilling machine that supplies water into a hole to be drilled and drills the hole, which can be mounted in contact with the wall surrounding the hole to be drilled in the wall, and A space defined by a ring-shaped partition material having an inner diameter that is approximately the same as the outer diameter of the blade of the drilling machine, the outer circumferential surface of the blade inserted into the partition material during drilling, a wall, and the partition material. A water discharge device used in a drilling machine, which is equipped with a suction mechanism that sucks up water accumulated in the water and chips from concrete and reinforcing steel.
JP13919488A 1988-06-06 1988-06-06 Water-discharging device used for boring machine Pending JPH01308604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13919488A JPH01308604A (en) 1988-06-06 1988-06-06 Water-discharging device used for boring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13919488A JPH01308604A (en) 1988-06-06 1988-06-06 Water-discharging device used for boring machine

Publications (1)

Publication Number Publication Date
JPH01308604A true JPH01308604A (en) 1989-12-13

Family

ID=15239745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13919488A Pending JPH01308604A (en) 1988-06-06 1988-06-06 Water-discharging device used for boring machine

Country Status (1)

Country Link
JP (1) JPH01308604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010046829A (en) * 2008-08-19 2010-03-04 Shibuya:Kk Fixing implement for dust preventing cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010046829A (en) * 2008-08-19 2010-03-04 Shibuya:Kk Fixing implement for dust preventing cover

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